1 // SPDX-License-Identifier: GPL-2.0-or-later 2 /* 3 * advansys.c - Linux Host Driver for AdvanSys SCSI Adapters 4 * 5 * Copyright (c) 1995-2000 Advanced System Products, Inc. 6 * Copyright (c) 2000-2001 ConnectCom Solutions, Inc. 7 * Copyright (c) 2007 Matthew Wilcox <matthew@wil.cx> 8 * Copyright (c) 2014 Hannes Reinecke <hare@suse.de> 9 * All Rights Reserved. 10 */ 11 12 /* 13 * As of March 8, 2000 Advanced System Products, Inc. (AdvanSys) 14 * changed its name to ConnectCom Solutions, Inc. 15 * On June 18, 2001 Initio Corp. acquired ConnectCom's SCSI assets 16 */ 17 18 #include <linux/module.h> 19 #include <linux/string.h> 20 #include <linux/kernel.h> 21 #include <linux/types.h> 22 #include <linux/ioport.h> 23 #include <linux/interrupt.h> 24 #include <linux/delay.h> 25 #include <linux/slab.h> 26 #include <linux/mm.h> 27 #include <linux/proc_fs.h> 28 #include <linux/init.h> 29 #include <linux/blkdev.h> 30 #include <linux/isa.h> 31 #include <linux/eisa.h> 32 #include <linux/pci.h> 33 #include <linux/spinlock.h> 34 #include <linux/dma-mapping.h> 35 #include <linux/firmware.h> 36 #include <linux/dmapool.h> 37 38 #include <asm/io.h> 39 #include <asm/dma.h> 40 41 #include <scsi/scsi_cmnd.h> 42 #include <scsi/scsi_device.h> 43 #include <scsi/scsi_tcq.h> 44 #include <scsi/scsi.h> 45 #include <scsi/scsi_host.h> 46 47 #define DRV_NAME "advansys" 48 #define ASC_VERSION "3.5" /* AdvanSys Driver Version */ 49 50 /* FIXME: 51 * 52 * 1. Use scsi_transport_spi 53 * 2. advansys_info is not safe against multiple simultaneous callers 54 * 3. Add module_param to override ISA/VLB ioport array 55 */ 56 57 /* Enable driver /proc statistics. */ 58 #define ADVANSYS_STATS 59 60 /* Enable driver tracing. */ 61 #undef ADVANSYS_DEBUG 62 63 typedef unsigned char uchar; 64 65 #define isodd_word(val) ((((uint)val) & (uint)0x0001) != 0) 66 67 #define PCI_VENDOR_ID_ASP 0x10cd 68 #define PCI_DEVICE_ID_ASP_1200A 0x1100 69 #define PCI_DEVICE_ID_ASP_ABP940 0x1200 70 #define PCI_DEVICE_ID_ASP_ABP940U 0x1300 71 #define PCI_DEVICE_ID_ASP_ABP940UW 0x2300 72 #define PCI_DEVICE_ID_38C0800_REV1 0x2500 73 #define PCI_DEVICE_ID_38C1600_REV1 0x2700 74 75 #define PortAddr unsigned int /* port address size */ 76 #define inp(port) inb(port) 77 #define outp(port, byte) outb((byte), (port)) 78 79 #define inpw(port) inw(port) 80 #define outpw(port, word) outw((word), (port)) 81 82 #define ASC_MAX_SG_QUEUE 7 83 #define ASC_MAX_SG_LIST 255 84 85 #define ASC_CS_TYPE unsigned short 86 87 #define ASC_IS_EISA (0x0002) 88 #define ASC_IS_PCI (0x0004) 89 #define ASC_IS_PCI_ULTRA (0x0104) 90 #define ASC_IS_PCMCIA (0x0008) 91 #define ASC_IS_MCA (0x0020) 92 #define ASC_IS_VL (0x0040) 93 #define ASC_IS_WIDESCSI_16 (0x0100) 94 #define ASC_IS_WIDESCSI_32 (0x0200) 95 #define ASC_IS_BIG_ENDIAN (0x8000) 96 97 #define ASC_CHIP_MIN_VER_VL (0x01) 98 #define ASC_CHIP_MAX_VER_VL (0x07) 99 #define ASC_CHIP_MIN_VER_PCI (0x09) 100 #define ASC_CHIP_MAX_VER_PCI (0x0F) 101 #define ASC_CHIP_VER_PCI_BIT (0x08) 102 #define ASC_CHIP_VER_ASYN_BUG (0x21) 103 #define ASC_CHIP_VER_PCI 0x08 104 #define ASC_CHIP_VER_PCI_ULTRA_3150 (ASC_CHIP_VER_PCI | 0x02) 105 #define ASC_CHIP_VER_PCI_ULTRA_3050 (ASC_CHIP_VER_PCI | 0x03) 106 #define ASC_CHIP_MIN_VER_EISA (0x41) 107 #define ASC_CHIP_MAX_VER_EISA (0x47) 108 #define ASC_CHIP_VER_EISA_BIT (0x40) 109 #define ASC_CHIP_LATEST_VER_EISA ((ASC_CHIP_MIN_VER_EISA - 1) + 3) 110 #define ASC_MAX_VL_DMA_COUNT (0x07FFFFFFL) 111 #define ASC_MAX_PCI_DMA_COUNT (0xFFFFFFFFL) 112 113 #define ASC_SCSI_ID_BITS 3 114 #define ASC_SCSI_TIX_TYPE uchar 115 #define ASC_ALL_DEVICE_BIT_SET 0xFF 116 #define ASC_SCSI_BIT_ID_TYPE uchar 117 #define ASC_MAX_TID 7 118 #define ASC_MAX_LUN 7 119 #define ASC_SCSI_WIDTH_BIT_SET 0xFF 120 #define ASC_MAX_SENSE_LEN 32 121 #define ASC_MIN_SENSE_LEN 14 122 #define ASC_SCSI_RESET_HOLD_TIME_US 60 123 124 /* 125 * Narrow boards only support 12-byte commands, while wide boards 126 * extend to 16-byte commands. 127 */ 128 #define ASC_MAX_CDB_LEN 12 129 #define ADV_MAX_CDB_LEN 16 130 131 #define MS_SDTR_LEN 0x03 132 #define MS_WDTR_LEN 0x02 133 134 #define ASC_SG_LIST_PER_Q 7 135 #define QS_FREE 0x00 136 #define QS_READY 0x01 137 #define QS_DISC1 0x02 138 #define QS_DISC2 0x04 139 #define QS_BUSY 0x08 140 #define QS_ABORTED 0x40 141 #define QS_DONE 0x80 142 #define QC_NO_CALLBACK 0x01 143 #define QC_SG_SWAP_QUEUE 0x02 144 #define QC_SG_HEAD 0x04 145 #define QC_DATA_IN 0x08 146 #define QC_DATA_OUT 0x10 147 #define QC_URGENT 0x20 148 #define QC_MSG_OUT 0x40 149 #define QC_REQ_SENSE 0x80 150 #define QCSG_SG_XFER_LIST 0x02 151 #define QCSG_SG_XFER_MORE 0x04 152 #define QCSG_SG_XFER_END 0x08 153 #define QD_IN_PROGRESS 0x00 154 #define QD_NO_ERROR 0x01 155 #define QD_ABORTED_BY_HOST 0x02 156 #define QD_WITH_ERROR 0x04 157 #define QD_INVALID_REQUEST 0x80 158 #define QD_INVALID_HOST_NUM 0x81 159 #define QD_INVALID_DEVICE 0x82 160 #define QD_ERR_INTERNAL 0xFF 161 #define QHSTA_NO_ERROR 0x00 162 #define QHSTA_M_SEL_TIMEOUT 0x11 163 #define QHSTA_M_DATA_OVER_RUN 0x12 164 #define QHSTA_M_DATA_UNDER_RUN 0x12 165 #define QHSTA_M_UNEXPECTED_BUS_FREE 0x13 166 #define QHSTA_M_BAD_BUS_PHASE_SEQ 0x14 167 #define QHSTA_D_QDONE_SG_LIST_CORRUPTED 0x21 168 #define QHSTA_D_ASC_DVC_ERROR_CODE_SET 0x22 169 #define QHSTA_D_HOST_ABORT_FAILED 0x23 170 #define QHSTA_D_EXE_SCSI_Q_FAILED 0x24 171 #define QHSTA_D_EXE_SCSI_Q_BUSY_TIMEOUT 0x25 172 #define QHSTA_D_ASPI_NO_BUF_POOL 0x26 173 #define QHSTA_M_WTM_TIMEOUT 0x41 174 #define QHSTA_M_BAD_CMPL_STATUS_IN 0x42 175 #define QHSTA_M_NO_AUTO_REQ_SENSE 0x43 176 #define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44 177 #define QHSTA_M_TARGET_STATUS_BUSY 0x45 178 #define QHSTA_M_BAD_TAG_CODE 0x46 179 #define QHSTA_M_BAD_QUEUE_FULL_OR_BUSY 0x47 180 #define QHSTA_M_HUNG_REQ_SCSI_BUS_RESET 0x48 181 #define QHSTA_D_LRAM_CMP_ERROR 0x81 182 #define QHSTA_M_MICRO_CODE_ERROR_HALT 0xA1 183 #define ASC_FLAG_SCSIQ_REQ 0x01 184 #define ASC_FLAG_BIOS_SCSIQ_REQ 0x02 185 #define ASC_FLAG_BIOS_ASYNC_IO 0x04 186 #define ASC_FLAG_SRB_LINEAR_ADDR 0x08 187 #define ASC_FLAG_WIN16 0x10 188 #define ASC_FLAG_WIN32 0x20 189 #define ASC_FLAG_DOS_VM_CALLBACK 0x80 190 #define ASC_TAG_FLAG_EXTRA_BYTES 0x10 191 #define ASC_TAG_FLAG_DISABLE_DISCONNECT 0x04 192 #define ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX 0x08 193 #define ASC_TAG_FLAG_DISABLE_CHK_COND_INT_HOST 0x40 194 #define ASC_SCSIQ_CPY_BEG 4 195 #define ASC_SCSIQ_SGHD_CPY_BEG 2 196 #define ASC_SCSIQ_B_FWD 0 197 #define ASC_SCSIQ_B_BWD 1 198 #define ASC_SCSIQ_B_STATUS 2 199 #define ASC_SCSIQ_B_QNO 3 200 #define ASC_SCSIQ_B_CNTL 4 201 #define ASC_SCSIQ_B_SG_QUEUE_CNT 5 202 #define ASC_SCSIQ_D_DATA_ADDR 8 203 #define ASC_SCSIQ_D_DATA_CNT 12 204 #define ASC_SCSIQ_B_SENSE_LEN 20 205 #define ASC_SCSIQ_DONE_INFO_BEG 22 206 #define ASC_SCSIQ_D_SRBPTR 22 207 #define ASC_SCSIQ_B_TARGET_IX 26 208 #define ASC_SCSIQ_B_CDB_LEN 28 209 #define ASC_SCSIQ_B_TAG_CODE 29 210 #define ASC_SCSIQ_W_VM_ID 30 211 #define ASC_SCSIQ_DONE_STATUS 32 212 #define ASC_SCSIQ_HOST_STATUS 33 213 #define ASC_SCSIQ_SCSI_STATUS 34 214 #define ASC_SCSIQ_CDB_BEG 36 215 #define ASC_SCSIQ_DW_REMAIN_XFER_ADDR 56 216 #define ASC_SCSIQ_DW_REMAIN_XFER_CNT 60 217 #define ASC_SCSIQ_B_FIRST_SG_WK_QP 48 218 #define ASC_SCSIQ_B_SG_WK_QP 49 219 #define ASC_SCSIQ_B_SG_WK_IX 50 220 #define ASC_SCSIQ_W_ALT_DC1 52 221 #define ASC_SCSIQ_B_LIST_CNT 6 222 #define ASC_SCSIQ_B_CUR_LIST_CNT 7 223 #define ASC_SGQ_B_SG_CNTL 4 224 #define ASC_SGQ_B_SG_HEAD_QP 5 225 #define ASC_SGQ_B_SG_LIST_CNT 6 226 #define ASC_SGQ_B_SG_CUR_LIST_CNT 7 227 #define ASC_SGQ_LIST_BEG 8 228 #define ASC_DEF_SCSI1_QNG 4 229 #define ASC_MAX_SCSI1_QNG 4 230 #define ASC_DEF_SCSI2_QNG 16 231 #define ASC_MAX_SCSI2_QNG 32 232 #define ASC_TAG_CODE_MASK 0x23 233 #define ASC_STOP_REQ_RISC_STOP 0x01 234 #define ASC_STOP_ACK_RISC_STOP 0x03 235 #define ASC_STOP_CLEAN_UP_BUSY_Q 0x10 236 #define ASC_STOP_CLEAN_UP_DISC_Q 0x20 237 #define ASC_STOP_HOST_REQ_RISC_HALT 0x40 238 #define ASC_TIDLUN_TO_IX(tid, lun) (ASC_SCSI_TIX_TYPE)((tid) + ((lun)<<ASC_SCSI_ID_BITS)) 239 #define ASC_TID_TO_TARGET_ID(tid) (ASC_SCSI_BIT_ID_TYPE)(0x01 << (tid)) 240 #define ASC_TIX_TO_TARGET_ID(tix) (0x01 << ((tix) & ASC_MAX_TID)) 241 #define ASC_TIX_TO_TID(tix) ((tix) & ASC_MAX_TID) 242 #define ASC_TID_TO_TIX(tid) ((tid) & ASC_MAX_TID) 243 #define ASC_TIX_TO_LUN(tix) (((tix) >> ASC_SCSI_ID_BITS) & ASC_MAX_LUN) 244 #define ASC_QNO_TO_QADDR(q_no) ((ASC_QADR_BEG)+((int)(q_no) << 6)) 245 246 typedef struct asc_scsiq_1 { 247 uchar status; 248 uchar q_no; 249 uchar cntl; 250 uchar sg_queue_cnt; 251 uchar target_id; 252 uchar target_lun; 253 __le32 data_addr; 254 __le32 data_cnt; 255 __le32 sense_addr; 256 uchar sense_len; 257 uchar extra_bytes; 258 } ASC_SCSIQ_1; 259 260 typedef struct asc_scsiq_2 { 261 u32 srb_tag; 262 uchar target_ix; 263 uchar flag; 264 uchar cdb_len; 265 uchar tag_code; 266 ushort vm_id; 267 } ASC_SCSIQ_2; 268 269 typedef struct asc_scsiq_3 { 270 uchar done_stat; 271 uchar host_stat; 272 uchar scsi_stat; 273 uchar scsi_msg; 274 } ASC_SCSIQ_3; 275 276 typedef struct asc_scsiq_4 { 277 uchar cdb[ASC_MAX_CDB_LEN]; 278 uchar y_first_sg_list_qp; 279 uchar y_working_sg_qp; 280 uchar y_working_sg_ix; 281 uchar y_res; 282 ushort x_req_count; 283 ushort x_reconnect_rtn; 284 __le32 x_saved_data_addr; 285 __le32 x_saved_data_cnt; 286 } ASC_SCSIQ_4; 287 288 typedef struct asc_q_done_info { 289 ASC_SCSIQ_2 d2; 290 ASC_SCSIQ_3 d3; 291 uchar q_status; 292 uchar q_no; 293 uchar cntl; 294 uchar sense_len; 295 uchar extra_bytes; 296 uchar res; 297 u32 remain_bytes; 298 } ASC_QDONE_INFO; 299 300 typedef struct asc_sg_list { 301 __le32 addr; 302 __le32 bytes; 303 } ASC_SG_LIST; 304 305 typedef struct asc_sg_head { 306 ushort entry_cnt; 307 ushort queue_cnt; 308 ushort entry_to_copy; 309 ushort res; 310 ASC_SG_LIST sg_list[]; 311 } ASC_SG_HEAD; 312 313 typedef struct asc_scsi_q { 314 ASC_SCSIQ_1 q1; 315 ASC_SCSIQ_2 q2; 316 uchar *cdbptr; 317 ASC_SG_HEAD *sg_head; 318 ushort remain_sg_entry_cnt; 319 ushort next_sg_index; 320 } ASC_SCSI_Q; 321 322 typedef struct asc_scsi_bios_req_q { 323 ASC_SCSIQ_1 r1; 324 ASC_SCSIQ_2 r2; 325 uchar *cdbptr; 326 ASC_SG_HEAD *sg_head; 327 uchar *sense_ptr; 328 ASC_SCSIQ_3 r3; 329 uchar cdb[ASC_MAX_CDB_LEN]; 330 uchar sense[ASC_MIN_SENSE_LEN]; 331 } ASC_SCSI_BIOS_REQ_Q; 332 333 typedef struct asc_risc_q { 334 uchar fwd; 335 uchar bwd; 336 ASC_SCSIQ_1 i1; 337 ASC_SCSIQ_2 i2; 338 ASC_SCSIQ_3 i3; 339 ASC_SCSIQ_4 i4; 340 } ASC_RISC_Q; 341 342 typedef struct asc_sg_list_q { 343 uchar seq_no; 344 uchar q_no; 345 uchar cntl; 346 uchar sg_head_qp; 347 uchar sg_list_cnt; 348 uchar sg_cur_list_cnt; 349 } ASC_SG_LIST_Q; 350 351 typedef struct asc_risc_sg_list_q { 352 uchar fwd; 353 uchar bwd; 354 ASC_SG_LIST_Q sg; 355 ASC_SG_LIST sg_list[7]; 356 } ASC_RISC_SG_LIST_Q; 357 358 #define ASCQ_ERR_Q_STATUS 0x0D 359 #define ASCQ_ERR_CUR_QNG 0x17 360 #define ASCQ_ERR_SG_Q_LINKS 0x18 361 #define ASCQ_ERR_ISR_RE_ENTRY 0x1A 362 #define ASCQ_ERR_CRITICAL_RE_ENTRY 0x1B 363 #define ASCQ_ERR_ISR_ON_CRITICAL 0x1C 364 365 /* 366 * Warning code values are set in ASC_DVC_VAR 'warn_code'. 367 */ 368 #define ASC_WARN_NO_ERROR 0x0000 369 #define ASC_WARN_IO_PORT_ROTATE 0x0001 370 #define ASC_WARN_EEPROM_CHKSUM 0x0002 371 #define ASC_WARN_IRQ_MODIFIED 0x0004 372 #define ASC_WARN_AUTO_CONFIG 0x0008 373 #define ASC_WARN_CMD_QNG_CONFLICT 0x0010 374 #define ASC_WARN_EEPROM_RECOVER 0x0020 375 #define ASC_WARN_CFG_MSW_RECOVER 0x0040 376 377 /* 378 * Error code values are set in {ASC/ADV}_DVC_VAR 'err_code'. 379 */ 380 #define ASC_IERR_NO_CARRIER 0x0001 /* No more carrier memory */ 381 #define ASC_IERR_MCODE_CHKSUM 0x0002 /* micro code check sum error */ 382 #define ASC_IERR_SET_PC_ADDR 0x0004 383 #define ASC_IERR_START_STOP_CHIP 0x0008 /* start/stop chip failed */ 384 #define ASC_IERR_ILLEGAL_CONNECTION 0x0010 /* Illegal cable connection */ 385 #define ASC_IERR_SINGLE_END_DEVICE 0x0020 /* SE device on DIFF bus */ 386 #define ASC_IERR_REVERSED_CABLE 0x0040 /* Narrow flat cable reversed */ 387 #define ASC_IERR_SET_SCSI_ID 0x0080 /* set SCSI ID failed */ 388 #define ASC_IERR_HVD_DEVICE 0x0100 /* HVD device on LVD port */ 389 #define ASC_IERR_BAD_SIGNATURE 0x0200 /* signature not found */ 390 #define ASC_IERR_NO_BUS_TYPE 0x0400 391 #define ASC_IERR_BIST_PRE_TEST 0x0800 /* BIST pre-test error */ 392 #define ASC_IERR_BIST_RAM_TEST 0x1000 /* BIST RAM test error */ 393 #define ASC_IERR_BAD_CHIPTYPE 0x2000 /* Invalid chip_type setting */ 394 395 #define ASC_DEF_MAX_TOTAL_QNG (0xF0) 396 #define ASC_MIN_TAG_Q_PER_DVC (0x04) 397 #define ASC_MIN_FREE_Q (0x02) 398 #define ASC_MIN_TOTAL_QNG ((ASC_MAX_SG_QUEUE)+(ASC_MIN_FREE_Q)) 399 #define ASC_MAX_TOTAL_QNG 240 400 #define ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG 16 401 #define ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG 8 402 #define ASC_MAX_PCI_INRAM_TOTAL_QNG 20 403 #define ASC_MAX_INRAM_TAG_QNG 16 404 #define ASC_IOADR_GAP 0x10 405 #define ASC_SYN_MAX_OFFSET 0x0F 406 #define ASC_DEF_SDTR_OFFSET 0x0F 407 #define ASC_SDTR_ULTRA_PCI_10MB_INDEX 0x02 408 #define ASYN_SDTR_DATA_FIX_PCI_REV_AB 0x41 409 410 /* The narrow chip only supports a limited selection of transfer rates. 411 * These are encoded in the range 0..7 or 0..15 depending whether the chip 412 * is Ultra-capable or not. These tables let us convert from one to the other. 413 */ 414 static const unsigned char asc_syn_xfer_period[8] = { 415 25, 30, 35, 40, 50, 60, 70, 85 416 }; 417 418 static const unsigned char asc_syn_ultra_xfer_period[16] = { 419 12, 19, 25, 32, 38, 44, 50, 57, 63, 69, 75, 82, 88, 94, 100, 107 420 }; 421 422 typedef struct ext_msg { 423 uchar msg_type; 424 uchar msg_len; 425 uchar msg_req; 426 union { 427 struct { 428 uchar sdtr_xfer_period; 429 uchar sdtr_req_ack_offset; 430 } sdtr; 431 struct { 432 uchar wdtr_width; 433 } wdtr; 434 struct { 435 uchar mdp_b3; 436 uchar mdp_b2; 437 uchar mdp_b1; 438 uchar mdp_b0; 439 } mdp; 440 } u_ext_msg; 441 uchar res; 442 } EXT_MSG; 443 444 #define xfer_period u_ext_msg.sdtr.sdtr_xfer_period 445 #define req_ack_offset u_ext_msg.sdtr.sdtr_req_ack_offset 446 #define wdtr_width u_ext_msg.wdtr.wdtr_width 447 #define mdp_b3 u_ext_msg.mdp_b3 448 #define mdp_b2 u_ext_msg.mdp_b2 449 #define mdp_b1 u_ext_msg.mdp_b1 450 #define mdp_b0 u_ext_msg.mdp_b0 451 452 typedef struct asc_dvc_cfg { 453 ASC_SCSI_BIT_ID_TYPE can_tagged_qng; 454 ASC_SCSI_BIT_ID_TYPE cmd_qng_enabled; 455 ASC_SCSI_BIT_ID_TYPE disc_enable; 456 ASC_SCSI_BIT_ID_TYPE sdtr_enable; 457 uchar chip_scsi_id; 458 uchar chip_version; 459 ushort mcode_date; 460 ushort mcode_version; 461 uchar max_tag_qng[ASC_MAX_TID + 1]; 462 uchar sdtr_period_offset[ASC_MAX_TID + 1]; 463 uchar adapter_info[6]; 464 } ASC_DVC_CFG; 465 466 #define ASC_DEF_DVC_CNTL 0xFFFF 467 #define ASC_DEF_CHIP_SCSI_ID 7 468 #define ASC_DEF_ISA_DMA_SPEED 4 469 #define ASC_INIT_STATE_BEG_GET_CFG 0x0001 470 #define ASC_INIT_STATE_END_GET_CFG 0x0002 471 #define ASC_INIT_STATE_BEG_SET_CFG 0x0004 472 #define ASC_INIT_STATE_END_SET_CFG 0x0008 473 #define ASC_INIT_STATE_BEG_LOAD_MC 0x0010 474 #define ASC_INIT_STATE_END_LOAD_MC 0x0020 475 #define ASC_INIT_STATE_BEG_INQUIRY 0x0040 476 #define ASC_INIT_STATE_END_INQUIRY 0x0080 477 #define ASC_INIT_RESET_SCSI_DONE 0x0100 478 #define ASC_INIT_STATE_WITHOUT_EEP 0x8000 479 #define ASC_BUG_FIX_IF_NOT_DWB 0x0001 480 #define ASC_BUG_FIX_ASYN_USE_SYN 0x0002 481 #define ASC_MIN_TAGGED_CMD 7 482 #define ASC_MAX_SCSI_RESET_WAIT 30 483 #define ASC_OVERRUN_BSIZE 64 484 485 struct asc_dvc_var; /* Forward Declaration. */ 486 487 typedef struct asc_dvc_var { 488 PortAddr iop_base; 489 ushort err_code; 490 ushort dvc_cntl; 491 ushort bug_fix_cntl; 492 ushort bus_type; 493 ASC_SCSI_BIT_ID_TYPE init_sdtr; 494 ASC_SCSI_BIT_ID_TYPE sdtr_done; 495 ASC_SCSI_BIT_ID_TYPE use_tagged_qng; 496 ASC_SCSI_BIT_ID_TYPE unit_not_ready; 497 ASC_SCSI_BIT_ID_TYPE queue_full_or_busy; 498 ASC_SCSI_BIT_ID_TYPE start_motor; 499 uchar *overrun_buf; 500 dma_addr_t overrun_dma; 501 uchar scsi_reset_wait; 502 uchar chip_no; 503 bool is_in_int; 504 uchar max_total_qng; 505 uchar cur_total_qng; 506 uchar in_critical_cnt; 507 uchar last_q_shortage; 508 ushort init_state; 509 uchar cur_dvc_qng[ASC_MAX_TID + 1]; 510 uchar max_dvc_qng[ASC_MAX_TID + 1]; 511 ASC_SCSI_Q *scsiq_busy_head[ASC_MAX_TID + 1]; 512 ASC_SCSI_Q *scsiq_busy_tail[ASC_MAX_TID + 1]; 513 const uchar *sdtr_period_tbl; 514 ASC_DVC_CFG *cfg; 515 ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer_always; 516 char redo_scam; 517 ushort res2; 518 uchar dos_int13_table[ASC_MAX_TID + 1]; 519 unsigned int max_dma_count; 520 ASC_SCSI_BIT_ID_TYPE no_scam; 521 ASC_SCSI_BIT_ID_TYPE pci_fix_asyn_xfer; 522 uchar min_sdtr_index; 523 uchar max_sdtr_index; 524 struct asc_board *drv_ptr; 525 unsigned int uc_break; 526 } ASC_DVC_VAR; 527 528 typedef struct asc_dvc_inq_info { 529 uchar type[ASC_MAX_TID + 1][ASC_MAX_LUN + 1]; 530 } ASC_DVC_INQ_INFO; 531 532 typedef struct asc_cap_info { 533 u32 lba; 534 u32 blk_size; 535 } ASC_CAP_INFO; 536 537 typedef struct asc_cap_info_array { 538 ASC_CAP_INFO cap_info[ASC_MAX_TID + 1][ASC_MAX_LUN + 1]; 539 } ASC_CAP_INFO_ARRAY; 540 541 #define ASC_MCNTL_NO_SEL_TIMEOUT (ushort)0x0001 542 #define ASC_MCNTL_NULL_TARGET (ushort)0x0002 543 #define ASC_CNTL_INITIATOR (ushort)0x0001 544 #define ASC_CNTL_BIOS_GT_1GB (ushort)0x0002 545 #define ASC_CNTL_BIOS_GT_2_DISK (ushort)0x0004 546 #define ASC_CNTL_BIOS_REMOVABLE (ushort)0x0008 547 #define ASC_CNTL_NO_SCAM (ushort)0x0010 548 #define ASC_CNTL_INT_MULTI_Q (ushort)0x0080 549 #define ASC_CNTL_NO_LUN_SUPPORT (ushort)0x0040 550 #define ASC_CNTL_NO_VERIFY_COPY (ushort)0x0100 551 #define ASC_CNTL_RESET_SCSI (ushort)0x0200 552 #define ASC_CNTL_INIT_INQUIRY (ushort)0x0400 553 #define ASC_CNTL_INIT_VERBOSE (ushort)0x0800 554 #define ASC_CNTL_SCSI_PARITY (ushort)0x1000 555 #define ASC_CNTL_BURST_MODE (ushort)0x2000 556 #define ASC_CNTL_SDTR_ENABLE_ULTRA (ushort)0x4000 557 #define ASC_EEP_DVC_CFG_BEG_VL 2 558 #define ASC_EEP_MAX_DVC_ADDR_VL 15 559 #define ASC_EEP_DVC_CFG_BEG 32 560 #define ASC_EEP_MAX_DVC_ADDR 45 561 #define ASC_EEP_MAX_RETRY 20 562 563 /* 564 * These macros keep the chip SCSI id bitfields in board order. C bitfields 565 * aren't portable between big and little-endian platforms so they are not used. 566 */ 567 568 #define ASC_EEP_GET_CHIP_ID(cfg) ((cfg)->id_speed & 0x0f) 569 #define ASC_EEP_GET_DMA_SPD(cfg) (((cfg)->id_speed & 0xf0) >> 4) 570 #define ASC_EEP_SET_CHIP_ID(cfg, sid) \ 571 ((cfg)->id_speed = ((cfg)->id_speed & 0xf0) | ((sid) & ASC_MAX_TID)) 572 #define ASC_EEP_SET_DMA_SPD(cfg, spd) \ 573 ((cfg)->id_speed = ((cfg)->id_speed & 0x0f) | ((spd) & 0x0f) << 4) 574 575 typedef struct asceep_config { 576 ushort cfg_lsw; 577 ushort cfg_msw; 578 uchar init_sdtr; 579 uchar disc_enable; 580 uchar use_cmd_qng; 581 uchar start_motor; 582 uchar max_total_qng; 583 uchar max_tag_qng; 584 uchar bios_scan; 585 uchar power_up_wait; 586 uchar no_scam; 587 uchar id_speed; /* low order 4 bits is chip scsi id */ 588 /* high order 4 bits is isa dma speed */ 589 uchar dos_int13_table[ASC_MAX_TID + 1]; 590 uchar adapter_info[6]; 591 ushort cntl; 592 ushort chksum; 593 } ASCEEP_CONFIG; 594 595 #define ASC_EEP_CMD_READ 0x80 596 #define ASC_EEP_CMD_WRITE 0x40 597 #define ASC_EEP_CMD_WRITE_ABLE 0x30 598 #define ASC_EEP_CMD_WRITE_DISABLE 0x00 599 #define ASCV_MSGOUT_BEG 0x0000 600 #define ASCV_MSGOUT_SDTR_PERIOD (ASCV_MSGOUT_BEG+3) 601 #define ASCV_MSGOUT_SDTR_OFFSET (ASCV_MSGOUT_BEG+4) 602 #define ASCV_BREAK_SAVED_CODE (ushort)0x0006 603 #define ASCV_MSGIN_BEG (ASCV_MSGOUT_BEG+8) 604 #define ASCV_MSGIN_SDTR_PERIOD (ASCV_MSGIN_BEG+3) 605 #define ASCV_MSGIN_SDTR_OFFSET (ASCV_MSGIN_BEG+4) 606 #define ASCV_SDTR_DATA_BEG (ASCV_MSGIN_BEG+8) 607 #define ASCV_SDTR_DONE_BEG (ASCV_SDTR_DATA_BEG+8) 608 #define ASCV_MAX_DVC_QNG_BEG (ushort)0x0020 609 #define ASCV_BREAK_ADDR (ushort)0x0028 610 #define ASCV_BREAK_NOTIFY_COUNT (ushort)0x002A 611 #define ASCV_BREAK_CONTROL (ushort)0x002C 612 #define ASCV_BREAK_HIT_COUNT (ushort)0x002E 613 614 #define ASCV_ASCDVC_ERR_CODE_W (ushort)0x0030 615 #define ASCV_MCODE_CHKSUM_W (ushort)0x0032 616 #define ASCV_MCODE_SIZE_W (ushort)0x0034 617 #define ASCV_STOP_CODE_B (ushort)0x0036 618 #define ASCV_DVC_ERR_CODE_B (ushort)0x0037 619 #define ASCV_OVERRUN_PADDR_D (ushort)0x0038 620 #define ASCV_OVERRUN_BSIZE_D (ushort)0x003C 621 #define ASCV_HALTCODE_W (ushort)0x0040 622 #define ASCV_CHKSUM_W (ushort)0x0042 623 #define ASCV_MC_DATE_W (ushort)0x0044 624 #define ASCV_MC_VER_W (ushort)0x0046 625 #define ASCV_NEXTRDY_B (ushort)0x0048 626 #define ASCV_DONENEXT_B (ushort)0x0049 627 #define ASCV_USE_TAGGED_QNG_B (ushort)0x004A 628 #define ASCV_SCSIBUSY_B (ushort)0x004B 629 #define ASCV_Q_DONE_IN_PROGRESS_B (ushort)0x004C 630 #define ASCV_CURCDB_B (ushort)0x004D 631 #define ASCV_RCLUN_B (ushort)0x004E 632 #define ASCV_BUSY_QHEAD_B (ushort)0x004F 633 #define ASCV_DISC1_QHEAD_B (ushort)0x0050 634 #define ASCV_DISC_ENABLE_B (ushort)0x0052 635 #define ASCV_CAN_TAGGED_QNG_B (ushort)0x0053 636 #define ASCV_HOSTSCSI_ID_B (ushort)0x0055 637 #define ASCV_MCODE_CNTL_B (ushort)0x0056 638 #define ASCV_NULL_TARGET_B (ushort)0x0057 639 #define ASCV_FREE_Q_HEAD_W (ushort)0x0058 640 #define ASCV_DONE_Q_TAIL_W (ushort)0x005A 641 #define ASCV_FREE_Q_HEAD_B (ushort)(ASCV_FREE_Q_HEAD_W+1) 642 #define ASCV_DONE_Q_TAIL_B (ushort)(ASCV_DONE_Q_TAIL_W+1) 643 #define ASCV_HOST_FLAG_B (ushort)0x005D 644 #define ASCV_TOTAL_READY_Q_B (ushort)0x0064 645 #define ASCV_VER_SERIAL_B (ushort)0x0065 646 #define ASCV_HALTCODE_SAVED_W (ushort)0x0066 647 #define ASCV_WTM_FLAG_B (ushort)0x0068 648 #define ASCV_RISC_FLAG_B (ushort)0x006A 649 #define ASCV_REQ_SG_LIST_QP (ushort)0x006B 650 #define ASC_HOST_FLAG_IN_ISR 0x01 651 #define ASC_HOST_FLAG_ACK_INT 0x02 652 #define ASC_RISC_FLAG_GEN_INT 0x01 653 #define ASC_RISC_FLAG_REQ_SG_LIST 0x02 654 #define IOP_CTRL (0x0F) 655 #define IOP_STATUS (0x0E) 656 #define IOP_INT_ACK IOP_STATUS 657 #define IOP_REG_IFC (0x0D) 658 #define IOP_SYN_OFFSET (0x0B) 659 #define IOP_EXTRA_CONTROL (0x0D) 660 #define IOP_REG_PC (0x0C) 661 #define IOP_RAM_ADDR (0x0A) 662 #define IOP_RAM_DATA (0x08) 663 #define IOP_EEP_DATA (0x06) 664 #define IOP_EEP_CMD (0x07) 665 #define IOP_VERSION (0x03) 666 #define IOP_CONFIG_HIGH (0x04) 667 #define IOP_CONFIG_LOW (0x02) 668 #define IOP_SIG_BYTE (0x01) 669 #define IOP_SIG_WORD (0x00) 670 #define IOP_REG_DC1 (0x0E) 671 #define IOP_REG_DC0 (0x0C) 672 #define IOP_REG_SB (0x0B) 673 #define IOP_REG_DA1 (0x0A) 674 #define IOP_REG_DA0 (0x08) 675 #define IOP_REG_SC (0x09) 676 #define IOP_DMA_SPEED (0x07) 677 #define IOP_REG_FLAG (0x07) 678 #define IOP_FIFO_H (0x06) 679 #define IOP_FIFO_L (0x04) 680 #define IOP_REG_ID (0x05) 681 #define IOP_REG_QP (0x03) 682 #define IOP_REG_IH (0x02) 683 #define IOP_REG_IX (0x01) 684 #define IOP_REG_AX (0x00) 685 #define IFC_REG_LOCK (0x00) 686 #define IFC_REG_UNLOCK (0x09) 687 #define IFC_WR_EN_FILTER (0x10) 688 #define IFC_RD_NO_EEPROM (0x10) 689 #define IFC_SLEW_RATE (0x20) 690 #define IFC_ACT_NEG (0x40) 691 #define IFC_INP_FILTER (0x80) 692 #define IFC_INIT_DEFAULT (IFC_ACT_NEG | IFC_REG_UNLOCK) 693 #define SC_SEL (uchar)(0x80) 694 #define SC_BSY (uchar)(0x40) 695 #define SC_ACK (uchar)(0x20) 696 #define SC_REQ (uchar)(0x10) 697 #define SC_ATN (uchar)(0x08) 698 #define SC_IO (uchar)(0x04) 699 #define SC_CD (uchar)(0x02) 700 #define SC_MSG (uchar)(0x01) 701 #define SEC_SCSI_CTL (uchar)(0x80) 702 #define SEC_ACTIVE_NEGATE (uchar)(0x40) 703 #define SEC_SLEW_RATE (uchar)(0x20) 704 #define SEC_ENABLE_FILTER (uchar)(0x10) 705 #define ASC_HALT_EXTMSG_IN (ushort)0x8000 706 #define ASC_HALT_CHK_CONDITION (ushort)0x8100 707 #define ASC_HALT_SS_QUEUE_FULL (ushort)0x8200 708 #define ASC_HALT_DISABLE_ASYN_USE_SYN_FIX (ushort)0x8300 709 #define ASC_HALT_ENABLE_ASYN_USE_SYN_FIX (ushort)0x8400 710 #define ASC_HALT_SDTR_REJECTED (ushort)0x4000 711 #define ASC_HALT_HOST_COPY_SG_LIST_TO_RISC ( ushort )0x2000 712 #define ASC_MAX_QNO 0xF8 713 #define ASC_DATA_SEC_BEG (ushort)0x0080 714 #define ASC_DATA_SEC_END (ushort)0x0080 715 #define ASC_CODE_SEC_BEG (ushort)0x0080 716 #define ASC_CODE_SEC_END (ushort)0x0080 717 #define ASC_QADR_BEG (0x4000) 718 #define ASC_QADR_USED (ushort)(ASC_MAX_QNO * 64) 719 #define ASC_QADR_END (ushort)0x7FFF 720 #define ASC_QLAST_ADR (ushort)0x7FC0 721 #define ASC_QBLK_SIZE 0x40 722 #define ASC_BIOS_DATA_QBEG 0xF8 723 #define ASC_MIN_ACTIVE_QNO 0x01 724 #define ASC_QLINK_END 0xFF 725 #define ASC_EEPROM_WORDS 0x10 726 #define ASC_MAX_MGS_LEN 0x10 727 #define ASC_BIOS_ADDR_DEF 0xDC00 728 #define ASC_BIOS_SIZE 0x3800 729 #define ASC_BIOS_RAM_OFF 0x3800 730 #define ASC_BIOS_RAM_SIZE 0x800 731 #define ASC_BIOS_MIN_ADDR 0xC000 732 #define ASC_BIOS_MAX_ADDR 0xEC00 733 #define ASC_BIOS_BANK_SIZE 0x0400 734 #define ASC_MCODE_START_ADDR 0x0080 735 #define ASC_CFG0_HOST_INT_ON 0x0020 736 #define ASC_CFG0_BIOS_ON 0x0040 737 #define ASC_CFG0_VERA_BURST_ON 0x0080 738 #define ASC_CFG0_SCSI_PARITY_ON 0x0800 739 #define ASC_CFG1_SCSI_TARGET_ON 0x0080 740 #define ASC_CFG1_LRAM_8BITS_ON 0x0800 741 #define ASC_CFG_MSW_CLR_MASK 0x3080 742 #define CSW_TEST1 (ASC_CS_TYPE)0x8000 743 #define CSW_AUTO_CONFIG (ASC_CS_TYPE)0x4000 744 #define CSW_RESERVED1 (ASC_CS_TYPE)0x2000 745 #define CSW_IRQ_WRITTEN (ASC_CS_TYPE)0x1000 746 #define CSW_33MHZ_SELECTED (ASC_CS_TYPE)0x0800 747 #define CSW_TEST2 (ASC_CS_TYPE)0x0400 748 #define CSW_TEST3 (ASC_CS_TYPE)0x0200 749 #define CSW_RESERVED2 (ASC_CS_TYPE)0x0100 750 #define CSW_DMA_DONE (ASC_CS_TYPE)0x0080 751 #define CSW_FIFO_RDY (ASC_CS_TYPE)0x0040 752 #define CSW_EEP_READ_DONE (ASC_CS_TYPE)0x0020 753 #define CSW_HALTED (ASC_CS_TYPE)0x0010 754 #define CSW_SCSI_RESET_ACTIVE (ASC_CS_TYPE)0x0008 755 #define CSW_PARITY_ERR (ASC_CS_TYPE)0x0004 756 #define CSW_SCSI_RESET_LATCH (ASC_CS_TYPE)0x0002 757 #define CSW_INT_PENDING (ASC_CS_TYPE)0x0001 758 #define CIW_CLR_SCSI_RESET_INT (ASC_CS_TYPE)0x1000 759 #define CIW_INT_ACK (ASC_CS_TYPE)0x0100 760 #define CIW_TEST1 (ASC_CS_TYPE)0x0200 761 #define CIW_TEST2 (ASC_CS_TYPE)0x0400 762 #define CIW_SEL_33MHZ (ASC_CS_TYPE)0x0800 763 #define CIW_IRQ_ACT (ASC_CS_TYPE)0x1000 764 #define CC_CHIP_RESET (uchar)0x80 765 #define CC_SCSI_RESET (uchar)0x40 766 #define CC_HALT (uchar)0x20 767 #define CC_SINGLE_STEP (uchar)0x10 768 #define CC_DMA_ABLE (uchar)0x08 769 #define CC_TEST (uchar)0x04 770 #define CC_BANK_ONE (uchar)0x02 771 #define CC_DIAG (uchar)0x01 772 #define ASC_1000_ID0W 0x04C1 773 #define ASC_1000_ID0W_FIX 0x00C1 774 #define ASC_1000_ID1B 0x25 775 #define ASC_EISA_REV_IOP_MASK (0x0C83) 776 #define ASC_EISA_CFG_IOP_MASK (0x0C86) 777 #define ASC_GET_EISA_SLOT(iop) (PortAddr)((iop) & 0xF000) 778 #define INS_HALTINT (ushort)0x6281 779 #define INS_HALT (ushort)0x6280 780 #define INS_SINT (ushort)0x6200 781 #define INS_RFLAG_WTM (ushort)0x7380 782 #define ASC_MC_SAVE_CODE_WSIZE 0x500 783 #define ASC_MC_SAVE_DATA_WSIZE 0x40 784 785 typedef struct asc_mc_saved { 786 ushort data[ASC_MC_SAVE_DATA_WSIZE]; 787 ushort code[ASC_MC_SAVE_CODE_WSIZE]; 788 } ASC_MC_SAVED; 789 790 #define AscGetQDoneInProgress(port) AscReadLramByte((port), ASCV_Q_DONE_IN_PROGRESS_B) 791 #define AscPutQDoneInProgress(port, val) AscWriteLramByte((port), ASCV_Q_DONE_IN_PROGRESS_B, val) 792 #define AscGetVarFreeQHead(port) AscReadLramWord((port), ASCV_FREE_Q_HEAD_W) 793 #define AscGetVarDoneQTail(port) AscReadLramWord((port), ASCV_DONE_Q_TAIL_W) 794 #define AscPutVarFreeQHead(port, val) AscWriteLramWord((port), ASCV_FREE_Q_HEAD_W, val) 795 #define AscPutVarDoneQTail(port, val) AscWriteLramWord((port), ASCV_DONE_Q_TAIL_W, val) 796 #define AscGetRiscVarFreeQHead(port) AscReadLramByte((port), ASCV_NEXTRDY_B) 797 #define AscGetRiscVarDoneQTail(port) AscReadLramByte((port), ASCV_DONENEXT_B) 798 #define AscPutRiscVarFreeQHead(port, val) AscWriteLramByte((port), ASCV_NEXTRDY_B, val) 799 #define AscPutRiscVarDoneQTail(port, val) AscWriteLramByte((port), ASCV_DONENEXT_B, val) 800 #define AscPutMCodeSDTRDoneAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id), (data)) 801 #define AscGetMCodeSDTRDoneAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DONE_BEG+(ushort)id)) 802 #define AscPutMCodeInitSDTRAtID(port, id, data) AscWriteLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id), data) 803 #define AscGetMCodeInitSDTRAtID(port, id) AscReadLramByte((port), (ushort)((ushort)ASCV_SDTR_DATA_BEG+(ushort)id)) 804 #define AscGetChipSignatureByte(port) (uchar)inp((port)+IOP_SIG_BYTE) 805 #define AscGetChipSignatureWord(port) (ushort)inpw((port)+IOP_SIG_WORD) 806 #define AscGetChipVerNo(port) (uchar)inp((port)+IOP_VERSION) 807 #define AscGetChipCfgLsw(port) (ushort)inpw((port)+IOP_CONFIG_LOW) 808 #define AscGetChipCfgMsw(port) (ushort)inpw((port)+IOP_CONFIG_HIGH) 809 #define AscSetChipCfgLsw(port, data) outpw((port)+IOP_CONFIG_LOW, data) 810 #define AscSetChipCfgMsw(port, data) outpw((port)+IOP_CONFIG_HIGH, data) 811 #define AscGetChipEEPCmd(port) (uchar)inp((port)+IOP_EEP_CMD) 812 #define AscSetChipEEPCmd(port, data) outp((port)+IOP_EEP_CMD, data) 813 #define AscGetChipEEPData(port) (ushort)inpw((port)+IOP_EEP_DATA) 814 #define AscSetChipEEPData(port, data) outpw((port)+IOP_EEP_DATA, data) 815 #define AscGetChipLramAddr(port) (ushort)inpw((PortAddr)((port)+IOP_RAM_ADDR)) 816 #define AscSetChipLramAddr(port, addr) outpw((PortAddr)((port)+IOP_RAM_ADDR), addr) 817 #define AscGetChipLramData(port) (ushort)inpw((port)+IOP_RAM_DATA) 818 #define AscSetChipLramData(port, data) outpw((port)+IOP_RAM_DATA, data) 819 #define AscGetChipIFC(port) (uchar)inp((port)+IOP_REG_IFC) 820 #define AscSetChipIFC(port, data) outp((port)+IOP_REG_IFC, data) 821 #define AscGetChipStatus(port) (ASC_CS_TYPE)inpw((port)+IOP_STATUS) 822 #define AscSetChipStatus(port, cs_val) outpw((port)+IOP_STATUS, cs_val) 823 #define AscGetChipControl(port) (uchar)inp((port)+IOP_CTRL) 824 #define AscSetChipControl(port, cc_val) outp((port)+IOP_CTRL, cc_val) 825 #define AscGetChipSyn(port) (uchar)inp((port)+IOP_SYN_OFFSET) 826 #define AscSetChipSyn(port, data) outp((port)+IOP_SYN_OFFSET, data) 827 #define AscSetPCAddr(port, data) outpw((port)+IOP_REG_PC, data) 828 #define AscGetPCAddr(port) (ushort)inpw((port)+IOP_REG_PC) 829 #define AscIsIntPending(port) (AscGetChipStatus(port) & (CSW_INT_PENDING | CSW_SCSI_RESET_LATCH)) 830 #define AscGetChipScsiID(port) ((AscGetChipCfgLsw(port) >> 8) & ASC_MAX_TID) 831 #define AscGetExtraControl(port) (uchar)inp((port)+IOP_EXTRA_CONTROL) 832 #define AscSetExtraControl(port, data) outp((port)+IOP_EXTRA_CONTROL, data) 833 #define AscReadChipAX(port) (ushort)inpw((port)+IOP_REG_AX) 834 #define AscWriteChipAX(port, data) outpw((port)+IOP_REG_AX, data) 835 #define AscReadChipIX(port) (uchar)inp((port)+IOP_REG_IX) 836 #define AscWriteChipIX(port, data) outp((port)+IOP_REG_IX, data) 837 #define AscReadChipIH(port) (ushort)inpw((port)+IOP_REG_IH) 838 #define AscWriteChipIH(port, data) outpw((port)+IOP_REG_IH, data) 839 #define AscReadChipQP(port) (uchar)inp((port)+IOP_REG_QP) 840 #define AscWriteChipQP(port, data) outp((port)+IOP_REG_QP, data) 841 #define AscReadChipFIFO_L(port) (ushort)inpw((port)+IOP_REG_FIFO_L) 842 #define AscWriteChipFIFO_L(port, data) outpw((port)+IOP_REG_FIFO_L, data) 843 #define AscReadChipFIFO_H(port) (ushort)inpw((port)+IOP_REG_FIFO_H) 844 #define AscWriteChipFIFO_H(port, data) outpw((port)+IOP_REG_FIFO_H, data) 845 #define AscReadChipDmaSpeed(port) (uchar)inp((port)+IOP_DMA_SPEED) 846 #define AscWriteChipDmaSpeed(port, data) outp((port)+IOP_DMA_SPEED, data) 847 #define AscReadChipDA0(port) (ushort)inpw((port)+IOP_REG_DA0) 848 #define AscWriteChipDA0(port) outpw((port)+IOP_REG_DA0, data) 849 #define AscReadChipDA1(port) (ushort)inpw((port)+IOP_REG_DA1) 850 #define AscWriteChipDA1(port) outpw((port)+IOP_REG_DA1, data) 851 #define AscReadChipDC0(port) (ushort)inpw((port)+IOP_REG_DC0) 852 #define AscWriteChipDC0(port) outpw((port)+IOP_REG_DC0, data) 853 #define AscReadChipDC1(port) (ushort)inpw((port)+IOP_REG_DC1) 854 #define AscWriteChipDC1(port) outpw((port)+IOP_REG_DC1, data) 855 #define AscReadChipDvcID(port) (uchar)inp((port)+IOP_REG_ID) 856 #define AscWriteChipDvcID(port, data) outp((port)+IOP_REG_ID, data) 857 858 #define AdvPortAddr void __iomem * /* Virtual memory address size */ 859 860 /* 861 * Define Adv Library required memory access macros. 862 */ 863 #define ADV_MEM_READB(addr) readb(addr) 864 #define ADV_MEM_READW(addr) readw(addr) 865 #define ADV_MEM_WRITEB(addr, byte) writeb(byte, addr) 866 #define ADV_MEM_WRITEW(addr, word) writew(word, addr) 867 #define ADV_MEM_WRITEDW(addr, dword) writel(dword, addr) 868 869 /* 870 * Define total number of simultaneous maximum element scatter-gather 871 * request blocks per wide adapter. ASC_DEF_MAX_HOST_QNG (253) is the 872 * maximum number of outstanding commands per wide host adapter. Each 873 * command uses one or more ADV_SG_BLOCK each with 15 scatter-gather 874 * elements. Allow each command to have at least one ADV_SG_BLOCK structure. 875 * This allows about 15 commands to have the maximum 17 ADV_SG_BLOCK 876 * structures or 255 scatter-gather elements. 877 */ 878 #define ADV_TOT_SG_BLOCK ASC_DEF_MAX_HOST_QNG 879 880 /* 881 * Define maximum number of scatter-gather elements per request. 882 */ 883 #define ADV_MAX_SG_LIST 255 884 #define NO_OF_SG_PER_BLOCK 15 885 886 #define ADV_EEP_DVC_CFG_BEGIN (0x00) 887 #define ADV_EEP_DVC_CFG_END (0x15) 888 #define ADV_EEP_DVC_CTL_BEGIN (0x16) /* location of OEM name */ 889 #define ADV_EEP_MAX_WORD_ADDR (0x1E) 890 891 #define ADV_EEP_DELAY_MS 100 892 893 #define ADV_EEPROM_BIG_ENDIAN 0x8000 /* EEPROM Bit 15 */ 894 #define ADV_EEPROM_BIOS_ENABLE 0x4000 /* EEPROM Bit 14 */ 895 /* 896 * For the ASC3550 Bit 13 is Termination Polarity control bit. 897 * For later ICs Bit 13 controls whether the CIS (Card Information 898 * Service Section) is loaded from EEPROM. 899 */ 900 #define ADV_EEPROM_TERM_POL 0x2000 /* EEPROM Bit 13 */ 901 #define ADV_EEPROM_CIS_LD 0x2000 /* EEPROM Bit 13 */ 902 /* 903 * ASC38C1600 Bit 11 904 * 905 * If EEPROM Bit 11 is 0 for Function 0, then Function 0 will specify 906 * INT A in the PCI Configuration Space Int Pin field. If it is 1, then 907 * Function 0 will specify INT B. 908 * 909 * If EEPROM Bit 11 is 0 for Function 1, then Function 1 will specify 910 * INT B in the PCI Configuration Space Int Pin field. If it is 1, then 911 * Function 1 will specify INT A. 912 */ 913 #define ADV_EEPROM_INTAB 0x0800 /* EEPROM Bit 11 */ 914 915 typedef struct adveep_3550_config { 916 /* Word Offset, Description */ 917 918 ushort cfg_lsw; /* 00 power up initialization */ 919 /* bit 13 set - Term Polarity Control */ 920 /* bit 14 set - BIOS Enable */ 921 /* bit 15 set - Big Endian Mode */ 922 ushort cfg_msw; /* 01 unused */ 923 ushort disc_enable; /* 02 disconnect enable */ 924 ushort wdtr_able; /* 03 Wide DTR able */ 925 ushort sdtr_able; /* 04 Synchronous DTR able */ 926 ushort start_motor; /* 05 send start up motor */ 927 ushort tagqng_able; /* 06 tag queuing able */ 928 ushort bios_scan; /* 07 BIOS device control */ 929 ushort scam_tolerant; /* 08 no scam */ 930 931 uchar adapter_scsi_id; /* 09 Host Adapter ID */ 932 uchar bios_boot_delay; /* power up wait */ 933 934 uchar scsi_reset_delay; /* 10 reset delay */ 935 uchar bios_id_lun; /* first boot device scsi id & lun */ 936 /* high nibble is lun */ 937 /* low nibble is scsi id */ 938 939 uchar termination; /* 11 0 - automatic */ 940 /* 1 - low off / high off */ 941 /* 2 - low off / high on */ 942 /* 3 - low on / high on */ 943 /* There is no low on / high off */ 944 945 uchar reserved1; /* reserved byte (not used) */ 946 947 ushort bios_ctrl; /* 12 BIOS control bits */ 948 /* bit 0 BIOS don't act as initiator. */ 949 /* bit 1 BIOS > 1 GB support */ 950 /* bit 2 BIOS > 2 Disk Support */ 951 /* bit 3 BIOS don't support removables */ 952 /* bit 4 BIOS support bootable CD */ 953 /* bit 5 BIOS scan enabled */ 954 /* bit 6 BIOS support multiple LUNs */ 955 /* bit 7 BIOS display of message */ 956 /* bit 8 SCAM disabled */ 957 /* bit 9 Reset SCSI bus during init. */ 958 /* bit 10 */ 959 /* bit 11 No verbose initialization. */ 960 /* bit 12 SCSI parity enabled */ 961 /* bit 13 */ 962 /* bit 14 */ 963 /* bit 15 */ 964 ushort ultra_able; /* 13 ULTRA speed able */ 965 ushort reserved2; /* 14 reserved */ 966 uchar max_host_qng; /* 15 maximum host queuing */ 967 uchar max_dvc_qng; /* maximum per device queuing */ 968 ushort dvc_cntl; /* 16 control bit for driver */ 969 ushort bug_fix; /* 17 control bit for bug fix */ 970 ushort serial_number_word1; /* 18 Board serial number word 1 */ 971 ushort serial_number_word2; /* 19 Board serial number word 2 */ 972 ushort serial_number_word3; /* 20 Board serial number word 3 */ 973 ushort check_sum; /* 21 EEP check sum */ 974 uchar oem_name[16]; /* 22 OEM name */ 975 ushort dvc_err_code; /* 30 last device driver error code */ 976 ushort adv_err_code; /* 31 last uc and Adv Lib error code */ 977 ushort adv_err_addr; /* 32 last uc error address */ 978 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */ 979 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */ 980 ushort saved_adv_err_addr; /* 35 saved last uc error address */ 981 ushort num_of_err; /* 36 number of error */ 982 } ADVEEP_3550_CONFIG; 983 984 typedef struct adveep_38C0800_config { 985 /* Word Offset, Description */ 986 987 ushort cfg_lsw; /* 00 power up initialization */ 988 /* bit 13 set - Load CIS */ 989 /* bit 14 set - BIOS Enable */ 990 /* bit 15 set - Big Endian Mode */ 991 ushort cfg_msw; /* 01 unused */ 992 ushort disc_enable; /* 02 disconnect enable */ 993 ushort wdtr_able; /* 03 Wide DTR able */ 994 ushort sdtr_speed1; /* 04 SDTR Speed TID 0-3 */ 995 ushort start_motor; /* 05 send start up motor */ 996 ushort tagqng_able; /* 06 tag queuing able */ 997 ushort bios_scan; /* 07 BIOS device control */ 998 ushort scam_tolerant; /* 08 no scam */ 999 1000 uchar adapter_scsi_id; /* 09 Host Adapter ID */ 1001 uchar bios_boot_delay; /* power up wait */ 1002 1003 uchar scsi_reset_delay; /* 10 reset delay */ 1004 uchar bios_id_lun; /* first boot device scsi id & lun */ 1005 /* high nibble is lun */ 1006 /* low nibble is scsi id */ 1007 1008 uchar termination_se; /* 11 0 - automatic */ 1009 /* 1 - low off / high off */ 1010 /* 2 - low off / high on */ 1011 /* 3 - low on / high on */ 1012 /* There is no low on / high off */ 1013 1014 uchar termination_lvd; /* 11 0 - automatic */ 1015 /* 1 - low off / high off */ 1016 /* 2 - low off / high on */ 1017 /* 3 - low on / high on */ 1018 /* There is no low on / high off */ 1019 1020 ushort bios_ctrl; /* 12 BIOS control bits */ 1021 /* bit 0 BIOS don't act as initiator. */ 1022 /* bit 1 BIOS > 1 GB support */ 1023 /* bit 2 BIOS > 2 Disk Support */ 1024 /* bit 3 BIOS don't support removables */ 1025 /* bit 4 BIOS support bootable CD */ 1026 /* bit 5 BIOS scan enabled */ 1027 /* bit 6 BIOS support multiple LUNs */ 1028 /* bit 7 BIOS display of message */ 1029 /* bit 8 SCAM disabled */ 1030 /* bit 9 Reset SCSI bus during init. */ 1031 /* bit 10 */ 1032 /* bit 11 No verbose initialization. */ 1033 /* bit 12 SCSI parity enabled */ 1034 /* bit 13 */ 1035 /* bit 14 */ 1036 /* bit 15 */ 1037 ushort sdtr_speed2; /* 13 SDTR speed TID 4-7 */ 1038 ushort sdtr_speed3; /* 14 SDTR speed TID 8-11 */ 1039 uchar max_host_qng; /* 15 maximum host queueing */ 1040 uchar max_dvc_qng; /* maximum per device queuing */ 1041 ushort dvc_cntl; /* 16 control bit for driver */ 1042 ushort sdtr_speed4; /* 17 SDTR speed 4 TID 12-15 */ 1043 ushort serial_number_word1; /* 18 Board serial number word 1 */ 1044 ushort serial_number_word2; /* 19 Board serial number word 2 */ 1045 ushort serial_number_word3; /* 20 Board serial number word 3 */ 1046 ushort check_sum; /* 21 EEP check sum */ 1047 uchar oem_name[16]; /* 22 OEM name */ 1048 ushort dvc_err_code; /* 30 last device driver error code */ 1049 ushort adv_err_code; /* 31 last uc and Adv Lib error code */ 1050 ushort adv_err_addr; /* 32 last uc error address */ 1051 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */ 1052 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */ 1053 ushort saved_adv_err_addr; /* 35 saved last uc error address */ 1054 ushort reserved36; /* 36 reserved */ 1055 ushort reserved37; /* 37 reserved */ 1056 ushort reserved38; /* 38 reserved */ 1057 ushort reserved39; /* 39 reserved */ 1058 ushort reserved40; /* 40 reserved */ 1059 ushort reserved41; /* 41 reserved */ 1060 ushort reserved42; /* 42 reserved */ 1061 ushort reserved43; /* 43 reserved */ 1062 ushort reserved44; /* 44 reserved */ 1063 ushort reserved45; /* 45 reserved */ 1064 ushort reserved46; /* 46 reserved */ 1065 ushort reserved47; /* 47 reserved */ 1066 ushort reserved48; /* 48 reserved */ 1067 ushort reserved49; /* 49 reserved */ 1068 ushort reserved50; /* 50 reserved */ 1069 ushort reserved51; /* 51 reserved */ 1070 ushort reserved52; /* 52 reserved */ 1071 ushort reserved53; /* 53 reserved */ 1072 ushort reserved54; /* 54 reserved */ 1073 ushort reserved55; /* 55 reserved */ 1074 ushort cisptr_lsw; /* 56 CIS PTR LSW */ 1075 ushort cisprt_msw; /* 57 CIS PTR MSW */ 1076 ushort subsysvid; /* 58 SubSystem Vendor ID */ 1077 ushort subsysid; /* 59 SubSystem ID */ 1078 ushort reserved60; /* 60 reserved */ 1079 ushort reserved61; /* 61 reserved */ 1080 ushort reserved62; /* 62 reserved */ 1081 ushort reserved63; /* 63 reserved */ 1082 } ADVEEP_38C0800_CONFIG; 1083 1084 typedef struct adveep_38C1600_config { 1085 /* Word Offset, Description */ 1086 1087 ushort cfg_lsw; /* 00 power up initialization */ 1088 /* bit 11 set - Func. 0 INTB, Func. 1 INTA */ 1089 /* clear - Func. 0 INTA, Func. 1 INTB */ 1090 /* bit 13 set - Load CIS */ 1091 /* bit 14 set - BIOS Enable */ 1092 /* bit 15 set - Big Endian Mode */ 1093 ushort cfg_msw; /* 01 unused */ 1094 ushort disc_enable; /* 02 disconnect enable */ 1095 ushort wdtr_able; /* 03 Wide DTR able */ 1096 ushort sdtr_speed1; /* 04 SDTR Speed TID 0-3 */ 1097 ushort start_motor; /* 05 send start up motor */ 1098 ushort tagqng_able; /* 06 tag queuing able */ 1099 ushort bios_scan; /* 07 BIOS device control */ 1100 ushort scam_tolerant; /* 08 no scam */ 1101 1102 uchar adapter_scsi_id; /* 09 Host Adapter ID */ 1103 uchar bios_boot_delay; /* power up wait */ 1104 1105 uchar scsi_reset_delay; /* 10 reset delay */ 1106 uchar bios_id_lun; /* first boot device scsi id & lun */ 1107 /* high nibble is lun */ 1108 /* low nibble is scsi id */ 1109 1110 uchar termination_se; /* 11 0 - automatic */ 1111 /* 1 - low off / high off */ 1112 /* 2 - low off / high on */ 1113 /* 3 - low on / high on */ 1114 /* There is no low on / high off */ 1115 1116 uchar termination_lvd; /* 11 0 - automatic */ 1117 /* 1 - low off / high off */ 1118 /* 2 - low off / high on */ 1119 /* 3 - low on / high on */ 1120 /* There is no low on / high off */ 1121 1122 ushort bios_ctrl; /* 12 BIOS control bits */ 1123 /* bit 0 BIOS don't act as initiator. */ 1124 /* bit 1 BIOS > 1 GB support */ 1125 /* bit 2 BIOS > 2 Disk Support */ 1126 /* bit 3 BIOS don't support removables */ 1127 /* bit 4 BIOS support bootable CD */ 1128 /* bit 5 BIOS scan enabled */ 1129 /* bit 6 BIOS support multiple LUNs */ 1130 /* bit 7 BIOS display of message */ 1131 /* bit 8 SCAM disabled */ 1132 /* bit 9 Reset SCSI bus during init. */ 1133 /* bit 10 Basic Integrity Checking disabled */ 1134 /* bit 11 No verbose initialization. */ 1135 /* bit 12 SCSI parity enabled */ 1136 /* bit 13 AIPP (Asyn. Info. Ph. Prot.) dis. */ 1137 /* bit 14 */ 1138 /* bit 15 */ 1139 ushort sdtr_speed2; /* 13 SDTR speed TID 4-7 */ 1140 ushort sdtr_speed3; /* 14 SDTR speed TID 8-11 */ 1141 uchar max_host_qng; /* 15 maximum host queueing */ 1142 uchar max_dvc_qng; /* maximum per device queuing */ 1143 ushort dvc_cntl; /* 16 control bit for driver */ 1144 ushort sdtr_speed4; /* 17 SDTR speed 4 TID 12-15 */ 1145 ushort serial_number_word1; /* 18 Board serial number word 1 */ 1146 ushort serial_number_word2; /* 19 Board serial number word 2 */ 1147 ushort serial_number_word3; /* 20 Board serial number word 3 */ 1148 ushort check_sum; /* 21 EEP check sum */ 1149 uchar oem_name[16]; /* 22 OEM name */ 1150 ushort dvc_err_code; /* 30 last device driver error code */ 1151 ushort adv_err_code; /* 31 last uc and Adv Lib error code */ 1152 ushort adv_err_addr; /* 32 last uc error address */ 1153 ushort saved_dvc_err_code; /* 33 saved last dev. driver error code */ 1154 ushort saved_adv_err_code; /* 34 saved last uc and Adv Lib error code */ 1155 ushort saved_adv_err_addr; /* 35 saved last uc error address */ 1156 ushort reserved36; /* 36 reserved */ 1157 ushort reserved37; /* 37 reserved */ 1158 ushort reserved38; /* 38 reserved */ 1159 ushort reserved39; /* 39 reserved */ 1160 ushort reserved40; /* 40 reserved */ 1161 ushort reserved41; /* 41 reserved */ 1162 ushort reserved42; /* 42 reserved */ 1163 ushort reserved43; /* 43 reserved */ 1164 ushort reserved44; /* 44 reserved */ 1165 ushort reserved45; /* 45 reserved */ 1166 ushort reserved46; /* 46 reserved */ 1167 ushort reserved47; /* 47 reserved */ 1168 ushort reserved48; /* 48 reserved */ 1169 ushort reserved49; /* 49 reserved */ 1170 ushort reserved50; /* 50 reserved */ 1171 ushort reserved51; /* 51 reserved */ 1172 ushort reserved52; /* 52 reserved */ 1173 ushort reserved53; /* 53 reserved */ 1174 ushort reserved54; /* 54 reserved */ 1175 ushort reserved55; /* 55 reserved */ 1176 ushort cisptr_lsw; /* 56 CIS PTR LSW */ 1177 ushort cisprt_msw; /* 57 CIS PTR MSW */ 1178 ushort subsysvid; /* 58 SubSystem Vendor ID */ 1179 ushort subsysid; /* 59 SubSystem ID */ 1180 ushort reserved60; /* 60 reserved */ 1181 ushort reserved61; /* 61 reserved */ 1182 ushort reserved62; /* 62 reserved */ 1183 ushort reserved63; /* 63 reserved */ 1184 } ADVEEP_38C1600_CONFIG; 1185 1186 /* 1187 * EEPROM Commands 1188 */ 1189 #define ASC_EEP_CMD_DONE 0x0200 1190 1191 /* bios_ctrl */ 1192 #define BIOS_CTRL_BIOS 0x0001 1193 #define BIOS_CTRL_EXTENDED_XLAT 0x0002 1194 #define BIOS_CTRL_GT_2_DISK 0x0004 1195 #define BIOS_CTRL_BIOS_REMOVABLE 0x0008 1196 #define BIOS_CTRL_BOOTABLE_CD 0x0010 1197 #define BIOS_CTRL_MULTIPLE_LUN 0x0040 1198 #define BIOS_CTRL_DISPLAY_MSG 0x0080 1199 #define BIOS_CTRL_NO_SCAM 0x0100 1200 #define BIOS_CTRL_RESET_SCSI_BUS 0x0200 1201 #define BIOS_CTRL_INIT_VERBOSE 0x0800 1202 #define BIOS_CTRL_SCSI_PARITY 0x1000 1203 #define BIOS_CTRL_AIPP_DIS 0x2000 1204 1205 #define ADV_3550_MEMSIZE 0x2000 /* 8 KB Internal Memory */ 1206 1207 #define ADV_38C0800_MEMSIZE 0x4000 /* 16 KB Internal Memory */ 1208 1209 /* 1210 * XXX - Since ASC38C1600 Rev.3 has a local RAM failure issue, there is 1211 * a special 16K Adv Library and Microcode version. After the issue is 1212 * resolved, should restore 32K support. 1213 * 1214 * #define ADV_38C1600_MEMSIZE 0x8000L * 32 KB Internal Memory * 1215 */ 1216 #define ADV_38C1600_MEMSIZE 0x4000 /* 16 KB Internal Memory */ 1217 1218 /* 1219 * Byte I/O register address from base of 'iop_base'. 1220 */ 1221 #define IOPB_INTR_STATUS_REG 0x00 1222 #define IOPB_CHIP_ID_1 0x01 1223 #define IOPB_INTR_ENABLES 0x02 1224 #define IOPB_CHIP_TYPE_REV 0x03 1225 #define IOPB_RES_ADDR_4 0x04 1226 #define IOPB_RES_ADDR_5 0x05 1227 #define IOPB_RAM_DATA 0x06 1228 #define IOPB_RES_ADDR_7 0x07 1229 #define IOPB_FLAG_REG 0x08 1230 #define IOPB_RES_ADDR_9 0x09 1231 #define IOPB_RISC_CSR 0x0A 1232 #define IOPB_RES_ADDR_B 0x0B 1233 #define IOPB_RES_ADDR_C 0x0C 1234 #define IOPB_RES_ADDR_D 0x0D 1235 #define IOPB_SOFT_OVER_WR 0x0E 1236 #define IOPB_RES_ADDR_F 0x0F 1237 #define IOPB_MEM_CFG 0x10 1238 #define IOPB_RES_ADDR_11 0x11 1239 #define IOPB_GPIO_DATA 0x12 1240 #define IOPB_RES_ADDR_13 0x13 1241 #define IOPB_FLASH_PAGE 0x14 1242 #define IOPB_RES_ADDR_15 0x15 1243 #define IOPB_GPIO_CNTL 0x16 1244 #define IOPB_RES_ADDR_17 0x17 1245 #define IOPB_FLASH_DATA 0x18 1246 #define IOPB_RES_ADDR_19 0x19 1247 #define IOPB_RES_ADDR_1A 0x1A 1248 #define IOPB_RES_ADDR_1B 0x1B 1249 #define IOPB_RES_ADDR_1C 0x1C 1250 #define IOPB_RES_ADDR_1D 0x1D 1251 #define IOPB_RES_ADDR_1E 0x1E 1252 #define IOPB_RES_ADDR_1F 0x1F 1253 #define IOPB_DMA_CFG0 0x20 1254 #define IOPB_DMA_CFG1 0x21 1255 #define IOPB_TICKLE 0x22 1256 #define IOPB_DMA_REG_WR 0x23 1257 #define IOPB_SDMA_STATUS 0x24 1258 #define IOPB_SCSI_BYTE_CNT 0x25 1259 #define IOPB_HOST_BYTE_CNT 0x26 1260 #define IOPB_BYTE_LEFT_TO_XFER 0x27 1261 #define IOPB_BYTE_TO_XFER_0 0x28 1262 #define IOPB_BYTE_TO_XFER_1 0x29 1263 #define IOPB_BYTE_TO_XFER_2 0x2A 1264 #define IOPB_BYTE_TO_XFER_3 0x2B 1265 #define IOPB_ACC_GRP 0x2C 1266 #define IOPB_RES_ADDR_2D 0x2D 1267 #define IOPB_DEV_ID 0x2E 1268 #define IOPB_RES_ADDR_2F 0x2F 1269 #define IOPB_SCSI_DATA 0x30 1270 #define IOPB_RES_ADDR_31 0x31 1271 #define IOPB_RES_ADDR_32 0x32 1272 #define IOPB_SCSI_DATA_HSHK 0x33 1273 #define IOPB_SCSI_CTRL 0x34 1274 #define IOPB_RES_ADDR_35 0x35 1275 #define IOPB_RES_ADDR_36 0x36 1276 #define IOPB_RES_ADDR_37 0x37 1277 #define IOPB_RAM_BIST 0x38 1278 #define IOPB_PLL_TEST 0x39 1279 #define IOPB_PCI_INT_CFG 0x3A 1280 #define IOPB_RES_ADDR_3B 0x3B 1281 #define IOPB_RFIFO_CNT 0x3C 1282 #define IOPB_RES_ADDR_3D 0x3D 1283 #define IOPB_RES_ADDR_3E 0x3E 1284 #define IOPB_RES_ADDR_3F 0x3F 1285 1286 /* 1287 * Word I/O register address from base of 'iop_base'. 1288 */ 1289 #define IOPW_CHIP_ID_0 0x00 /* CID0 */ 1290 #define IOPW_CTRL_REG 0x02 /* CC */ 1291 #define IOPW_RAM_ADDR 0x04 /* LA */ 1292 #define IOPW_RAM_DATA 0x06 /* LD */ 1293 #define IOPW_RES_ADDR_08 0x08 1294 #define IOPW_RISC_CSR 0x0A /* CSR */ 1295 #define IOPW_SCSI_CFG0 0x0C /* CFG0 */ 1296 #define IOPW_SCSI_CFG1 0x0E /* CFG1 */ 1297 #define IOPW_RES_ADDR_10 0x10 1298 #define IOPW_SEL_MASK 0x12 /* SM */ 1299 #define IOPW_RES_ADDR_14 0x14 1300 #define IOPW_FLASH_ADDR 0x16 /* FA */ 1301 #define IOPW_RES_ADDR_18 0x18 1302 #define IOPW_EE_CMD 0x1A /* EC */ 1303 #define IOPW_EE_DATA 0x1C /* ED */ 1304 #define IOPW_SFIFO_CNT 0x1E /* SFC */ 1305 #define IOPW_RES_ADDR_20 0x20 1306 #define IOPW_Q_BASE 0x22 /* QB */ 1307 #define IOPW_QP 0x24 /* QP */ 1308 #define IOPW_IX 0x26 /* IX */ 1309 #define IOPW_SP 0x28 /* SP */ 1310 #define IOPW_PC 0x2A /* PC */ 1311 #define IOPW_RES_ADDR_2C 0x2C 1312 #define IOPW_RES_ADDR_2E 0x2E 1313 #define IOPW_SCSI_DATA 0x30 /* SD */ 1314 #define IOPW_SCSI_DATA_HSHK 0x32 /* SDH */ 1315 #define IOPW_SCSI_CTRL 0x34 /* SC */ 1316 #define IOPW_HSHK_CFG 0x36 /* HCFG */ 1317 #define IOPW_SXFR_STATUS 0x36 /* SXS */ 1318 #define IOPW_SXFR_CNTL 0x38 /* SXL */ 1319 #define IOPW_SXFR_CNTH 0x3A /* SXH */ 1320 #define IOPW_RES_ADDR_3C 0x3C 1321 #define IOPW_RFIFO_DATA 0x3E /* RFD */ 1322 1323 /* 1324 * Doubleword I/O register address from base of 'iop_base'. 1325 */ 1326 #define IOPDW_RES_ADDR_0 0x00 1327 #define IOPDW_RAM_DATA 0x04 1328 #define IOPDW_RES_ADDR_8 0x08 1329 #define IOPDW_RES_ADDR_C 0x0C 1330 #define IOPDW_RES_ADDR_10 0x10 1331 #define IOPDW_COMMA 0x14 1332 #define IOPDW_COMMB 0x18 1333 #define IOPDW_RES_ADDR_1C 0x1C 1334 #define IOPDW_SDMA_ADDR0 0x20 1335 #define IOPDW_SDMA_ADDR1 0x24 1336 #define IOPDW_SDMA_COUNT 0x28 1337 #define IOPDW_SDMA_ERROR 0x2C 1338 #define IOPDW_RDMA_ADDR0 0x30 1339 #define IOPDW_RDMA_ADDR1 0x34 1340 #define IOPDW_RDMA_COUNT 0x38 1341 #define IOPDW_RDMA_ERROR 0x3C 1342 1343 #define ADV_CHIP_ID_BYTE 0x25 1344 #define ADV_CHIP_ID_WORD 0x04C1 1345 1346 #define ADV_INTR_ENABLE_HOST_INTR 0x01 1347 #define ADV_INTR_ENABLE_SEL_INTR 0x02 1348 #define ADV_INTR_ENABLE_DPR_INTR 0x04 1349 #define ADV_INTR_ENABLE_RTA_INTR 0x08 1350 #define ADV_INTR_ENABLE_RMA_INTR 0x10 1351 #define ADV_INTR_ENABLE_RST_INTR 0x20 1352 #define ADV_INTR_ENABLE_DPE_INTR 0x40 1353 #define ADV_INTR_ENABLE_GLOBAL_INTR 0x80 1354 1355 #define ADV_INTR_STATUS_INTRA 0x01 1356 #define ADV_INTR_STATUS_INTRB 0x02 1357 #define ADV_INTR_STATUS_INTRC 0x04 1358 1359 #define ADV_RISC_CSR_STOP (0x0000) 1360 #define ADV_RISC_TEST_COND (0x2000) 1361 #define ADV_RISC_CSR_RUN (0x4000) 1362 #define ADV_RISC_CSR_SINGLE_STEP (0x8000) 1363 1364 #define ADV_CTRL_REG_HOST_INTR 0x0100 1365 #define ADV_CTRL_REG_SEL_INTR 0x0200 1366 #define ADV_CTRL_REG_DPR_INTR 0x0400 1367 #define ADV_CTRL_REG_RTA_INTR 0x0800 1368 #define ADV_CTRL_REG_RMA_INTR 0x1000 1369 #define ADV_CTRL_REG_RES_BIT14 0x2000 1370 #define ADV_CTRL_REG_DPE_INTR 0x4000 1371 #define ADV_CTRL_REG_POWER_DONE 0x8000 1372 #define ADV_CTRL_REG_ANY_INTR 0xFF00 1373 1374 #define ADV_CTRL_REG_CMD_RESET 0x00C6 1375 #define ADV_CTRL_REG_CMD_WR_IO_REG 0x00C5 1376 #define ADV_CTRL_REG_CMD_RD_IO_REG 0x00C4 1377 #define ADV_CTRL_REG_CMD_WR_PCI_CFG_SPACE 0x00C3 1378 #define ADV_CTRL_REG_CMD_RD_PCI_CFG_SPACE 0x00C2 1379 1380 #define ADV_TICKLE_NOP 0x00 1381 #define ADV_TICKLE_A 0x01 1382 #define ADV_TICKLE_B 0x02 1383 #define ADV_TICKLE_C 0x03 1384 1385 #define AdvIsIntPending(port) \ 1386 (AdvReadWordRegister(port, IOPW_CTRL_REG) & ADV_CTRL_REG_HOST_INTR) 1387 1388 /* 1389 * SCSI_CFG0 Register bit definitions 1390 */ 1391 #define TIMER_MODEAB 0xC000 /* Watchdog, Second, and Select. Timer Ctrl. */ 1392 #define PARITY_EN 0x2000 /* Enable SCSI Parity Error detection */ 1393 #define EVEN_PARITY 0x1000 /* Select Even Parity */ 1394 #define WD_LONG 0x0800 /* Watchdog Interval, 1: 57 min, 0: 13 sec */ 1395 #define QUEUE_128 0x0400 /* Queue Size, 1: 128 byte, 0: 64 byte */ 1396 #define PRIM_MODE 0x0100 /* Primitive SCSI mode */ 1397 #define SCAM_EN 0x0080 /* Enable SCAM selection */ 1398 #define SEL_TMO_LONG 0x0040 /* Sel/Resel Timeout, 1: 400 ms, 0: 1.6 ms */ 1399 #define CFRM_ID 0x0020 /* SCAM id sel. confirm., 1: fast, 0: 6.4 ms */ 1400 #define OUR_ID_EN 0x0010 /* Enable OUR_ID bits */ 1401 #define OUR_ID 0x000F /* SCSI ID */ 1402 1403 /* 1404 * SCSI_CFG1 Register bit definitions 1405 */ 1406 #define BIG_ENDIAN 0x8000 /* Enable Big Endian Mode MIO:15, EEP:15 */ 1407 #define TERM_POL 0x2000 /* Terminator Polarity Ctrl. MIO:13, EEP:13 */ 1408 #define SLEW_RATE 0x1000 /* SCSI output buffer slew rate */ 1409 #define FILTER_SEL 0x0C00 /* Filter Period Selection */ 1410 #define FLTR_DISABLE 0x0000 /* Input Filtering Disabled */ 1411 #define FLTR_11_TO_20NS 0x0800 /* Input Filtering 11ns to 20ns */ 1412 #define FLTR_21_TO_39NS 0x0C00 /* Input Filtering 21ns to 39ns */ 1413 #define ACTIVE_DBL 0x0200 /* Disable Active Negation */ 1414 #define DIFF_MODE 0x0100 /* SCSI differential Mode (Read-Only) */ 1415 #define DIFF_SENSE 0x0080 /* 1: No SE cables, 0: SE cable (Read-Only) */ 1416 #define TERM_CTL_SEL 0x0040 /* Enable TERM_CTL_H and TERM_CTL_L */ 1417 #define TERM_CTL 0x0030 /* External SCSI Termination Bits */ 1418 #define TERM_CTL_H 0x0020 /* Enable External SCSI Upper Termination */ 1419 #define TERM_CTL_L 0x0010 /* Enable External SCSI Lower Termination */ 1420 #define CABLE_DETECT 0x000F /* External SCSI Cable Connection Status */ 1421 1422 /* 1423 * Addendum for ASC-38C0800 Chip 1424 * 1425 * The ASC-38C1600 Chip uses the same definitions except that the 1426 * bus mode override bits [12:10] have been moved to byte register 1427 * offset 0xE (IOPB_SOFT_OVER_WR) bits [12:10]. The [12:10] bits in 1428 * SCSI_CFG1 are read-only and always available. Bit 14 (DIS_TERM_DRV) 1429 * is not needed. The [12:10] bits in IOPB_SOFT_OVER_WR are write-only. 1430 * Also each ASC-38C1600 function or channel uses only cable bits [5:4] 1431 * and [1:0]. Bits [14], [7:6], [3:2] are unused. 1432 */ 1433 #define DIS_TERM_DRV 0x4000 /* 1: Read c_det[3:0], 0: cannot read */ 1434 #define HVD_LVD_SE 0x1C00 /* Device Detect Bits */ 1435 #define HVD 0x1000 /* HVD Device Detect */ 1436 #define LVD 0x0800 /* LVD Device Detect */ 1437 #define SE 0x0400 /* SE Device Detect */ 1438 #define TERM_LVD 0x00C0 /* LVD Termination Bits */ 1439 #define TERM_LVD_HI 0x0080 /* Enable LVD Upper Termination */ 1440 #define TERM_LVD_LO 0x0040 /* Enable LVD Lower Termination */ 1441 #define TERM_SE 0x0030 /* SE Termination Bits */ 1442 #define TERM_SE_HI 0x0020 /* Enable SE Upper Termination */ 1443 #define TERM_SE_LO 0x0010 /* Enable SE Lower Termination */ 1444 #define C_DET_LVD 0x000C /* LVD Cable Detect Bits */ 1445 #define C_DET3 0x0008 /* Cable Detect for LVD External Wide */ 1446 #define C_DET2 0x0004 /* Cable Detect for LVD Internal Wide */ 1447 #define C_DET_SE 0x0003 /* SE Cable Detect Bits */ 1448 #define C_DET1 0x0002 /* Cable Detect for SE Internal Wide */ 1449 #define C_DET0 0x0001 /* Cable Detect for SE Internal Narrow */ 1450 1451 #define CABLE_ILLEGAL_A 0x7 1452 /* x 0 0 0 | on on | Illegal (all 3 connectors are used) */ 1453 1454 #define CABLE_ILLEGAL_B 0xB 1455 /* 0 x 0 0 | on on | Illegal (all 3 connectors are used) */ 1456 1457 /* 1458 * MEM_CFG Register bit definitions 1459 */ 1460 #define BIOS_EN 0x40 /* BIOS Enable MIO:14,EEP:14 */ 1461 #define FAST_EE_CLK 0x20 /* Diagnostic Bit */ 1462 #define RAM_SZ 0x1C /* Specify size of RAM to RISC */ 1463 #define RAM_SZ_2KB 0x00 /* 2 KB */ 1464 #define RAM_SZ_4KB 0x04 /* 4 KB */ 1465 #define RAM_SZ_8KB 0x08 /* 8 KB */ 1466 #define RAM_SZ_16KB 0x0C /* 16 KB */ 1467 #define RAM_SZ_32KB 0x10 /* 32 KB */ 1468 #define RAM_SZ_64KB 0x14 /* 64 KB */ 1469 1470 /* 1471 * DMA_CFG0 Register bit definitions 1472 * 1473 * This register is only accessible to the host. 1474 */ 1475 #define BC_THRESH_ENB 0x80 /* PCI DMA Start Conditions */ 1476 #define FIFO_THRESH 0x70 /* PCI DMA FIFO Threshold */ 1477 #define FIFO_THRESH_16B 0x00 /* 16 bytes */ 1478 #define FIFO_THRESH_32B 0x20 /* 32 bytes */ 1479 #define FIFO_THRESH_48B 0x30 /* 48 bytes */ 1480 #define FIFO_THRESH_64B 0x40 /* 64 bytes */ 1481 #define FIFO_THRESH_80B 0x50 /* 80 bytes (default) */ 1482 #define FIFO_THRESH_96B 0x60 /* 96 bytes */ 1483 #define FIFO_THRESH_112B 0x70 /* 112 bytes */ 1484 #define START_CTL 0x0C /* DMA start conditions */ 1485 #define START_CTL_TH 0x00 /* Wait threshold level (default) */ 1486 #define START_CTL_ID 0x04 /* Wait SDMA/SBUS idle */ 1487 #define START_CTL_THID 0x08 /* Wait threshold and SDMA/SBUS idle */ 1488 #define START_CTL_EMFU 0x0C /* Wait SDMA FIFO empty/full */ 1489 #define READ_CMD 0x03 /* Memory Read Method */ 1490 #define READ_CMD_MR 0x00 /* Memory Read */ 1491 #define READ_CMD_MRL 0x02 /* Memory Read Long */ 1492 #define READ_CMD_MRM 0x03 /* Memory Read Multiple (default) */ 1493 1494 /* 1495 * ASC-38C0800 RAM BIST Register bit definitions 1496 */ 1497 #define RAM_TEST_MODE 0x80 1498 #define PRE_TEST_MODE 0x40 1499 #define NORMAL_MODE 0x00 1500 #define RAM_TEST_DONE 0x10 1501 #define RAM_TEST_STATUS 0x0F 1502 #define RAM_TEST_HOST_ERROR 0x08 1503 #define RAM_TEST_INTRAM_ERROR 0x04 1504 #define RAM_TEST_RISC_ERROR 0x02 1505 #define RAM_TEST_SCSI_ERROR 0x01 1506 #define RAM_TEST_SUCCESS 0x00 1507 #define PRE_TEST_VALUE 0x05 1508 #define NORMAL_VALUE 0x00 1509 1510 /* 1511 * ASC38C1600 Definitions 1512 * 1513 * IOPB_PCI_INT_CFG Bit Field Definitions 1514 */ 1515 1516 #define INTAB_LD 0x80 /* Value loaded from EEPROM Bit 11. */ 1517 1518 /* 1519 * Bit 1 can be set to change the interrupt for the Function to operate in 1520 * Totem Pole mode. By default Bit 1 is 0 and the interrupt operates in 1521 * Open Drain mode. Both functions of the ASC38C1600 must be set to the same 1522 * mode, otherwise the operating mode is undefined. 1523 */ 1524 #define TOTEMPOLE 0x02 1525 1526 /* 1527 * Bit 0 can be used to change the Int Pin for the Function. The value is 1528 * 0 by default for both Functions with Function 0 using INT A and Function 1529 * B using INT B. For Function 0 if set, INT B is used. For Function 1 if set, 1530 * INT A is used. 1531 * 1532 * EEPROM Word 0 Bit 11 for each Function may change the initial Int Pin 1533 * value specified in the PCI Configuration Space. 1534 */ 1535 #define INTAB 0x01 1536 1537 /* 1538 * Adv Library Status Definitions 1539 */ 1540 #define ADV_TRUE 1 1541 #define ADV_FALSE 0 1542 #define ADV_SUCCESS 1 1543 #define ADV_BUSY 0 1544 #define ADV_ERROR (-1) 1545 1546 /* 1547 * ADV_DVC_VAR 'warn_code' values 1548 */ 1549 #define ASC_WARN_BUSRESET_ERROR 0x0001 /* SCSI Bus Reset error */ 1550 #define ASC_WARN_EEPROM_CHKSUM 0x0002 /* EEP check sum error */ 1551 #define ASC_WARN_EEPROM_TERMINATION 0x0004 /* EEP termination bad field */ 1552 #define ASC_WARN_ERROR 0xFFFF /* ADV_ERROR return */ 1553 1554 #define ADV_MAX_TID 15 /* max. target identifier */ 1555 #define ADV_MAX_LUN 7 /* max. logical unit number */ 1556 1557 /* 1558 * Fixed locations of microcode operating variables. 1559 */ 1560 #define ASC_MC_CODE_BEGIN_ADDR 0x0028 /* microcode start address */ 1561 #define ASC_MC_CODE_END_ADDR 0x002A /* microcode end address */ 1562 #define ASC_MC_CODE_CHK_SUM 0x002C /* microcode code checksum */ 1563 #define ASC_MC_VERSION_DATE 0x0038 /* microcode version */ 1564 #define ASC_MC_VERSION_NUM 0x003A /* microcode number */ 1565 #define ASC_MC_BIOSMEM 0x0040 /* BIOS RISC Memory Start */ 1566 #define ASC_MC_BIOSLEN 0x0050 /* BIOS RISC Memory Length */ 1567 #define ASC_MC_BIOS_SIGNATURE 0x0058 /* BIOS Signature 0x55AA */ 1568 #define ASC_MC_BIOS_VERSION 0x005A /* BIOS Version (2 bytes) */ 1569 #define ASC_MC_SDTR_SPEED1 0x0090 /* SDTR Speed for TID 0-3 */ 1570 #define ASC_MC_SDTR_SPEED2 0x0092 /* SDTR Speed for TID 4-7 */ 1571 #define ASC_MC_SDTR_SPEED3 0x0094 /* SDTR Speed for TID 8-11 */ 1572 #define ASC_MC_SDTR_SPEED4 0x0096 /* SDTR Speed for TID 12-15 */ 1573 #define ASC_MC_CHIP_TYPE 0x009A 1574 #define ASC_MC_INTRB_CODE 0x009B 1575 #define ASC_MC_WDTR_ABLE 0x009C 1576 #define ASC_MC_SDTR_ABLE 0x009E 1577 #define ASC_MC_TAGQNG_ABLE 0x00A0 1578 #define ASC_MC_DISC_ENABLE 0x00A2 1579 #define ASC_MC_IDLE_CMD_STATUS 0x00A4 1580 #define ASC_MC_IDLE_CMD 0x00A6 1581 #define ASC_MC_IDLE_CMD_PARAMETER 0x00A8 1582 #define ASC_MC_DEFAULT_SCSI_CFG0 0x00AC 1583 #define ASC_MC_DEFAULT_SCSI_CFG1 0x00AE 1584 #define ASC_MC_DEFAULT_MEM_CFG 0x00B0 1585 #define ASC_MC_DEFAULT_SEL_MASK 0x00B2 1586 #define ASC_MC_SDTR_DONE 0x00B6 1587 #define ASC_MC_NUMBER_OF_QUEUED_CMD 0x00C0 1588 #define ASC_MC_NUMBER_OF_MAX_CMD 0x00D0 1589 #define ASC_MC_DEVICE_HSHK_CFG_TABLE 0x0100 1590 #define ASC_MC_CONTROL_FLAG 0x0122 /* Microcode control flag. */ 1591 #define ASC_MC_WDTR_DONE 0x0124 1592 #define ASC_MC_CAM_MODE_MASK 0x015E /* CAM mode TID bitmask. */ 1593 #define ASC_MC_ICQ 0x0160 1594 #define ASC_MC_IRQ 0x0164 1595 #define ASC_MC_PPR_ABLE 0x017A 1596 1597 /* 1598 * BIOS LRAM variable absolute offsets. 1599 */ 1600 #define BIOS_CODESEG 0x54 1601 #define BIOS_CODELEN 0x56 1602 #define BIOS_SIGNATURE 0x58 1603 #define BIOS_VERSION 0x5A 1604 1605 /* 1606 * Microcode Control Flags 1607 * 1608 * Flags set by the Adv Library in RISC variable 'control_flag' (0x122) 1609 * and handled by the microcode. 1610 */ 1611 #define CONTROL_FLAG_IGNORE_PERR 0x0001 /* Ignore DMA Parity Errors */ 1612 #define CONTROL_FLAG_ENABLE_AIPP 0x0002 /* Enabled AIPP checking. */ 1613 1614 /* 1615 * ASC_MC_DEVICE_HSHK_CFG_TABLE microcode table or HSHK_CFG register format 1616 */ 1617 #define HSHK_CFG_WIDE_XFR 0x8000 1618 #define HSHK_CFG_RATE 0x0F00 1619 #define HSHK_CFG_OFFSET 0x001F 1620 1621 #define ASC_DEF_MAX_HOST_QNG 0xFD /* Max. number of host commands (253) */ 1622 #define ASC_DEF_MIN_HOST_QNG 0x10 /* Min. number of host commands (16) */ 1623 #define ASC_DEF_MAX_DVC_QNG 0x3F /* Max. number commands per device (63) */ 1624 #define ASC_DEF_MIN_DVC_QNG 0x04 /* Min. number commands per device (4) */ 1625 1626 #define ASC_QC_DATA_CHECK 0x01 /* Require ASC_QC_DATA_OUT set or clear. */ 1627 #define ASC_QC_DATA_OUT 0x02 /* Data out DMA transfer. */ 1628 #define ASC_QC_START_MOTOR 0x04 /* Send auto-start motor before request. */ 1629 #define ASC_QC_NO_OVERRUN 0x08 /* Don't report overrun. */ 1630 #define ASC_QC_FREEZE_TIDQ 0x10 /* Freeze TID queue after request. XXX TBD */ 1631 1632 #define ASC_QSC_NO_DISC 0x01 /* Don't allow disconnect for request. */ 1633 #define ASC_QSC_NO_TAGMSG 0x02 /* Don't allow tag queuing for request. */ 1634 #define ASC_QSC_NO_SYNC 0x04 /* Don't use Synch. transfer on request. */ 1635 #define ASC_QSC_NO_WIDE 0x08 /* Don't use Wide transfer on request. */ 1636 #define ASC_QSC_REDO_DTR 0x10 /* Renegotiate WDTR/SDTR before request. */ 1637 /* 1638 * Note: If a Tag Message is to be sent and neither ASC_QSC_HEAD_TAG or 1639 * ASC_QSC_ORDERED_TAG is set, then a Simple Tag Message (0x20) is used. 1640 */ 1641 #define ASC_QSC_HEAD_TAG 0x40 /* Use Head Tag Message (0x21). */ 1642 #define ASC_QSC_ORDERED_TAG 0x80 /* Use Ordered Tag Message (0x22). */ 1643 1644 /* 1645 * All fields here are accessed by the board microcode and need to be 1646 * little-endian. 1647 */ 1648 typedef struct adv_carr_t { 1649 __le32 carr_va; /* Carrier Virtual Address */ 1650 __le32 carr_pa; /* Carrier Physical Address */ 1651 __le32 areq_vpa; /* ADV_SCSI_REQ_Q Virtual or Physical Address */ 1652 /* 1653 * next_vpa [31:4] Carrier Virtual or Physical Next Pointer 1654 * 1655 * next_vpa [3:1] Reserved Bits 1656 * next_vpa [0] Done Flag set in Response Queue. 1657 */ 1658 __le32 next_vpa; 1659 } ADV_CARR_T; 1660 1661 /* 1662 * Mask used to eliminate low 4 bits of carrier 'next_vpa' field. 1663 */ 1664 #define ADV_NEXT_VPA_MASK 0xFFFFFFF0 1665 1666 #define ADV_RQ_DONE 0x00000001 1667 #define ADV_RQ_GOOD 0x00000002 1668 #define ADV_CQ_STOPPER 0x00000000 1669 1670 #define ADV_GET_CARRP(carrp) ((carrp) & ADV_NEXT_VPA_MASK) 1671 1672 /* 1673 * Each carrier is 64 bytes, and we need three additional 1674 * carrier for icq, irq, and the termination carrier. 1675 */ 1676 #define ADV_CARRIER_COUNT (ASC_DEF_MAX_HOST_QNG + 3) 1677 1678 #define ADV_CARRIER_BUFSIZE \ 1679 (ADV_CARRIER_COUNT * sizeof(ADV_CARR_T)) 1680 1681 #define ADV_CHIP_ASC3550 0x01 /* Ultra-Wide IC */ 1682 #define ADV_CHIP_ASC38C0800 0x02 /* Ultra2-Wide/LVD IC */ 1683 #define ADV_CHIP_ASC38C1600 0x03 /* Ultra3-Wide/LVD2 IC */ 1684 1685 /* 1686 * Adapter temporary configuration structure 1687 * 1688 * This structure can be discarded after initialization. Don't add 1689 * fields here needed after initialization. 1690 * 1691 * Field naming convention: 1692 * 1693 * *_enable indicates the field enables or disables a feature. The 1694 * value of the field is never reset. 1695 */ 1696 typedef struct adv_dvc_cfg { 1697 ushort disc_enable; /* enable disconnection */ 1698 uchar chip_version; /* chip version */ 1699 uchar termination; /* Term. Ctrl. bits 6-5 of SCSI_CFG1 register */ 1700 ushort control_flag; /* Microcode Control Flag */ 1701 ushort mcode_date; /* Microcode date */ 1702 ushort mcode_version; /* Microcode version */ 1703 ushort serial1; /* EEPROM serial number word 1 */ 1704 ushort serial2; /* EEPROM serial number word 2 */ 1705 ushort serial3; /* EEPROM serial number word 3 */ 1706 } ADV_DVC_CFG; 1707 1708 struct adv_dvc_var; 1709 struct adv_scsi_req_q; 1710 1711 typedef struct adv_sg_block { 1712 uchar reserved1; 1713 uchar reserved2; 1714 uchar reserved3; 1715 uchar sg_cnt; /* Valid entries in block. */ 1716 __le32 sg_ptr; /* Pointer to next sg block. */ 1717 struct { 1718 __le32 sg_addr; /* SG element address. */ 1719 __le32 sg_count; /* SG element count. */ 1720 } sg_list[NO_OF_SG_PER_BLOCK]; 1721 } ADV_SG_BLOCK; 1722 1723 /* 1724 * ADV_SCSI_REQ_Q - microcode request structure 1725 * 1726 * All fields in this structure up to byte 60 are used by the microcode. 1727 * The microcode makes assumptions about the size and ordering of fields 1728 * in this structure. Do not change the structure definition here without 1729 * coordinating the change with the microcode. 1730 * 1731 * All fields accessed by microcode must be maintained in little_endian 1732 * order. 1733 */ 1734 typedef struct adv_scsi_req_q { 1735 uchar cntl; /* Ucode flags and state (ASC_MC_QC_*). */ 1736 uchar target_cmd; 1737 uchar target_id; /* Device target identifier. */ 1738 uchar target_lun; /* Device target logical unit number. */ 1739 __le32 data_addr; /* Data buffer physical address. */ 1740 __le32 data_cnt; /* Data count. Ucode sets to residual. */ 1741 __le32 sense_addr; 1742 __le32 carr_pa; 1743 uchar mflag; 1744 uchar sense_len; 1745 uchar cdb_len; /* SCSI CDB length. Must <= 16 bytes. */ 1746 uchar scsi_cntl; 1747 uchar done_status; /* Completion status. */ 1748 uchar scsi_status; /* SCSI status byte. */ 1749 uchar host_status; /* Ucode host status. */ 1750 uchar sg_working_ix; 1751 uchar cdb[12]; /* SCSI CDB bytes 0-11. */ 1752 __le32 sg_real_addr; /* SG list physical address. */ 1753 __le32 scsiq_rptr; 1754 uchar cdb16[4]; /* SCSI CDB bytes 12-15. */ 1755 __le32 scsiq_ptr; 1756 __le32 carr_va; 1757 /* 1758 * End of microcode structure - 60 bytes. The rest of the structure 1759 * is used by the Adv Library and ignored by the microcode. 1760 */ 1761 u32 srb_tag; 1762 ADV_SG_BLOCK *sg_list_ptr; /* SG list virtual address. */ 1763 } ADV_SCSI_REQ_Q; 1764 1765 /* 1766 * The following two structures are used to process Wide Board requests. 1767 * 1768 * The ADV_SCSI_REQ_Q structure in adv_req_t is passed to the Adv Library 1769 * and microcode with the ADV_SCSI_REQ_Q field 'srb_tag' set to the 1770 * SCSI request tag. The adv_req_t structure 'cmndp' field in turn points 1771 * to the Mid-Level SCSI request structure. 1772 * 1773 * Zero or more ADV_SG_BLOCK are used with each ADV_SCSI_REQ_Q. Each 1774 * ADV_SG_BLOCK structure holds 15 scatter-gather elements. Under Linux 1775 * up to 255 scatter-gather elements may be used per request or 1776 * ADV_SCSI_REQ_Q. 1777 * 1778 * Both structures must be 32 byte aligned. 1779 */ 1780 typedef struct adv_sgblk { 1781 ADV_SG_BLOCK sg_block; /* Sgblock structure. */ 1782 dma_addr_t sg_addr; /* Physical address */ 1783 struct adv_sgblk *next_sgblkp; /* Next scatter-gather structure. */ 1784 } adv_sgblk_t; 1785 1786 typedef struct adv_req { 1787 ADV_SCSI_REQ_Q scsi_req_q; /* Adv Library request structure. */ 1788 uchar align[24]; /* Request structure padding. */ 1789 struct scsi_cmnd *cmndp; /* Mid-Level SCSI command pointer. */ 1790 dma_addr_t req_addr; 1791 adv_sgblk_t *sgblkp; /* Adv Library scatter-gather pointer. */ 1792 } adv_req_t __aligned(32); 1793 1794 /* 1795 * Adapter operation variable structure. 1796 * 1797 * One structure is required per host adapter. 1798 * 1799 * Field naming convention: 1800 * 1801 * *_able indicates both whether a feature should be enabled or disabled 1802 * and whether a device is capable of the feature. At initialization 1803 * this field may be set, but later if a device is found to be incapable 1804 * of the feature, the field is cleared. 1805 */ 1806 typedef struct adv_dvc_var { 1807 AdvPortAddr iop_base; /* I/O port address */ 1808 ushort err_code; /* fatal error code */ 1809 ushort bios_ctrl; /* BIOS control word, EEPROM word 12 */ 1810 ushort wdtr_able; /* try WDTR for a device */ 1811 ushort sdtr_able; /* try SDTR for a device */ 1812 ushort ultra_able; /* try SDTR Ultra speed for a device */ 1813 ushort sdtr_speed1; /* EEPROM SDTR Speed for TID 0-3 */ 1814 ushort sdtr_speed2; /* EEPROM SDTR Speed for TID 4-7 */ 1815 ushort sdtr_speed3; /* EEPROM SDTR Speed for TID 8-11 */ 1816 ushort sdtr_speed4; /* EEPROM SDTR Speed for TID 12-15 */ 1817 ushort tagqng_able; /* try tagged queuing with a device */ 1818 ushort ppr_able; /* PPR message capable per TID bitmask. */ 1819 uchar max_dvc_qng; /* maximum number of tagged commands per device */ 1820 ushort start_motor; /* start motor command allowed */ 1821 uchar scsi_reset_wait; /* delay in seconds after scsi bus reset */ 1822 uchar chip_no; /* should be assigned by caller */ 1823 uchar max_host_qng; /* maximum number of Q'ed command allowed */ 1824 ushort no_scam; /* scam_tolerant of EEPROM */ 1825 struct asc_board *drv_ptr; /* driver pointer to private structure */ 1826 uchar chip_scsi_id; /* chip SCSI target ID */ 1827 uchar chip_type; 1828 uchar bist_err_code; 1829 ADV_CARR_T *carrier; 1830 ADV_CARR_T *carr_freelist; /* Carrier free list. */ 1831 dma_addr_t carrier_addr; 1832 ADV_CARR_T *icq_sp; /* Initiator command queue stopper pointer. */ 1833 ADV_CARR_T *irq_sp; /* Initiator response queue stopper pointer. */ 1834 ushort carr_pending_cnt; /* Count of pending carriers. */ 1835 /* 1836 * Note: The following fields will not be used after initialization. The 1837 * driver may discard the buffer after initialization is done. 1838 */ 1839 ADV_DVC_CFG *cfg; /* temporary configuration structure */ 1840 } ADV_DVC_VAR; 1841 1842 /* 1843 * Microcode idle loop commands 1844 */ 1845 #define IDLE_CMD_COMPLETED 0 1846 #define IDLE_CMD_STOP_CHIP 0x0001 1847 #define IDLE_CMD_STOP_CHIP_SEND_INT 0x0002 1848 #define IDLE_CMD_SEND_INT 0x0004 1849 #define IDLE_CMD_ABORT 0x0008 1850 #define IDLE_CMD_DEVICE_RESET 0x0010 1851 #define IDLE_CMD_SCSI_RESET_START 0x0020 /* Assert SCSI Bus Reset */ 1852 #define IDLE_CMD_SCSI_RESET_END 0x0040 /* Deassert SCSI Bus Reset */ 1853 #define IDLE_CMD_SCSIREQ 0x0080 1854 1855 #define IDLE_CMD_STATUS_SUCCESS 0x0001 1856 #define IDLE_CMD_STATUS_FAILURE 0x0002 1857 1858 /* 1859 * AdvSendIdleCmd() flag definitions. 1860 */ 1861 #define ADV_NOWAIT 0x01 1862 1863 /* 1864 * Wait loop time out values. 1865 */ 1866 #define SCSI_WAIT_100_MSEC 100UL /* 100 milliseconds */ 1867 #define SCSI_US_PER_MSEC 1000 /* microseconds per millisecond */ 1868 #define SCSI_MAX_RETRY 10 /* retry count */ 1869 1870 #define ADV_ASYNC_RDMA_FAILURE 0x01 /* Fatal RDMA failure. */ 1871 #define ADV_ASYNC_SCSI_BUS_RESET_DET 0x02 /* Detected SCSI Bus Reset. */ 1872 #define ADV_ASYNC_CARRIER_READY_FAILURE 0x03 /* Carrier Ready failure. */ 1873 #define ADV_RDMA_IN_CARR_AND_Q_INVALID 0x04 /* RDMAed-in data invalid. */ 1874 1875 #define ADV_HOST_SCSI_BUS_RESET 0x80 /* Host Initiated SCSI Bus Reset. */ 1876 1877 /* Read byte from a register. */ 1878 #define AdvReadByteRegister(iop_base, reg_off) \ 1879 (ADV_MEM_READB((iop_base) + (reg_off))) 1880 1881 /* Write byte to a register. */ 1882 #define AdvWriteByteRegister(iop_base, reg_off, byte) \ 1883 (ADV_MEM_WRITEB((iop_base) + (reg_off), (byte))) 1884 1885 /* Read word (2 bytes) from a register. */ 1886 #define AdvReadWordRegister(iop_base, reg_off) \ 1887 (ADV_MEM_READW((iop_base) + (reg_off))) 1888 1889 /* Write word (2 bytes) to a register. */ 1890 #define AdvWriteWordRegister(iop_base, reg_off, word) \ 1891 (ADV_MEM_WRITEW((iop_base) + (reg_off), (word))) 1892 1893 /* Write dword (4 bytes) to a register. */ 1894 #define AdvWriteDWordRegister(iop_base, reg_off, dword) \ 1895 (ADV_MEM_WRITEDW((iop_base) + (reg_off), (dword))) 1896 1897 /* Read byte from LRAM. */ 1898 #define AdvReadByteLram(iop_base, addr, byte) \ 1899 do { \ 1900 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)); \ 1901 (byte) = ADV_MEM_READB((iop_base) + IOPB_RAM_DATA); \ 1902 } while (0) 1903 1904 /* Write byte to LRAM. */ 1905 #define AdvWriteByteLram(iop_base, addr, byte) \ 1906 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \ 1907 ADV_MEM_WRITEB((iop_base) + IOPB_RAM_DATA, (byte))) 1908 1909 /* Read word (2 bytes) from LRAM. */ 1910 #define AdvReadWordLram(iop_base, addr, word) \ 1911 do { \ 1912 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)); \ 1913 (word) = (ADV_MEM_READW((iop_base) + IOPW_RAM_DATA)); \ 1914 } while (0) 1915 1916 /* Write word (2 bytes) to LRAM. */ 1917 #define AdvWriteWordLram(iop_base, addr, word) \ 1918 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \ 1919 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word))) 1920 1921 /* Write little-endian double word (4 bytes) to LRAM */ 1922 /* Because of unspecified C language ordering don't use auto-increment. */ 1923 #define AdvWriteDWordLramNoSwap(iop_base, addr, dword) \ 1924 ((ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr)), \ 1925 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, \ 1926 cpu_to_le16((ushort) ((dword) & 0xFFFF)))), \ 1927 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_ADDR, (addr) + 2), \ 1928 ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, \ 1929 cpu_to_le16((ushort) ((dword >> 16) & 0xFFFF))))) 1930 1931 /* Read word (2 bytes) from LRAM assuming that the address is already set. */ 1932 #define AdvReadWordAutoIncLram(iop_base) \ 1933 (ADV_MEM_READW((iop_base) + IOPW_RAM_DATA)) 1934 1935 /* Write word (2 bytes) to LRAM assuming that the address is already set. */ 1936 #define AdvWriteWordAutoIncLram(iop_base, word) \ 1937 (ADV_MEM_WRITEW((iop_base) + IOPW_RAM_DATA, (word))) 1938 1939 /* 1940 * Define macro to check for Condor signature. 1941 * 1942 * Evaluate to ADV_TRUE if a Condor chip is found the specified port 1943 * address 'iop_base'. Otherwise evalue to ADV_FALSE. 1944 */ 1945 #define AdvFindSignature(iop_base) \ 1946 (((AdvReadByteRegister((iop_base), IOPB_CHIP_ID_1) == \ 1947 ADV_CHIP_ID_BYTE) && \ 1948 (AdvReadWordRegister((iop_base), IOPW_CHIP_ID_0) == \ 1949 ADV_CHIP_ID_WORD)) ? ADV_TRUE : ADV_FALSE) 1950 1951 /* 1952 * Define macro to Return the version number of the chip at 'iop_base'. 1953 * 1954 * The second parameter 'bus_type' is currently unused. 1955 */ 1956 #define AdvGetChipVersion(iop_base, bus_type) \ 1957 AdvReadByteRegister((iop_base), IOPB_CHIP_TYPE_REV) 1958 1959 /* 1960 * Abort an SRB in the chip's RISC Memory. The 'srb_tag' argument must 1961 * match the ADV_SCSI_REQ_Q 'srb_tag' field. 1962 * 1963 * If the request has not yet been sent to the device it will simply be 1964 * aborted from RISC memory. If the request is disconnected it will be 1965 * aborted on reselection by sending an Abort Message to the target ID. 1966 * 1967 * Return value: 1968 * ADV_TRUE(1) - Queue was successfully aborted. 1969 * ADV_FALSE(0) - Queue was not found on the active queue list. 1970 */ 1971 #define AdvAbortQueue(asc_dvc, srb_tag) \ 1972 AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_ABORT, \ 1973 (ADV_DCNT) (srb_tag)) 1974 1975 /* 1976 * Send a Bus Device Reset Message to the specified target ID. 1977 * 1978 * All outstanding commands will be purged if sending the 1979 * Bus Device Reset Message is successful. 1980 * 1981 * Return Value: 1982 * ADV_TRUE(1) - All requests on the target are purged. 1983 * ADV_FALSE(0) - Couldn't issue Bus Device Reset Message; Requests 1984 * are not purged. 1985 */ 1986 #define AdvResetDevice(asc_dvc, target_id) \ 1987 AdvSendIdleCmd((asc_dvc), (ushort) IDLE_CMD_DEVICE_RESET, \ 1988 (ADV_DCNT) (target_id)) 1989 1990 /* 1991 * SCSI Wide Type definition. 1992 */ 1993 #define ADV_SCSI_BIT_ID_TYPE ushort 1994 1995 /* 1996 * AdvInitScsiTarget() 'cntl_flag' options. 1997 */ 1998 #define ADV_SCAN_LUN 0x01 1999 #define ADV_CAPINFO_NOLUN 0x02 2000 2001 /* 2002 * Convert target id to target id bit mask. 2003 */ 2004 #define ADV_TID_TO_TIDMASK(tid) (0x01 << ((tid) & ADV_MAX_TID)) 2005 2006 /* 2007 * ADV_SCSI_REQ_Q 'done_status' and 'host_status' return values. 2008 */ 2009 2010 #define QD_NO_STATUS 0x00 /* Request not completed yet. */ 2011 #define QD_NO_ERROR 0x01 2012 #define QD_ABORTED_BY_HOST 0x02 2013 #define QD_WITH_ERROR 0x04 2014 2015 #define QHSTA_NO_ERROR 0x00 2016 #define QHSTA_M_SEL_TIMEOUT 0x11 2017 #define QHSTA_M_DATA_OVER_RUN 0x12 2018 #define QHSTA_M_UNEXPECTED_BUS_FREE 0x13 2019 #define QHSTA_M_QUEUE_ABORTED 0x15 2020 #define QHSTA_M_SXFR_SDMA_ERR 0x16 /* SXFR_STATUS SCSI DMA Error */ 2021 #define QHSTA_M_SXFR_SXFR_PERR 0x17 /* SXFR_STATUS SCSI Bus Parity Error */ 2022 #define QHSTA_M_RDMA_PERR 0x18 /* RISC PCI DMA parity error */ 2023 #define QHSTA_M_SXFR_OFF_UFLW 0x19 /* SXFR_STATUS Offset Underflow */ 2024 #define QHSTA_M_SXFR_OFF_OFLW 0x20 /* SXFR_STATUS Offset Overflow */ 2025 #define QHSTA_M_SXFR_WD_TMO 0x21 /* SXFR_STATUS Watchdog Timeout */ 2026 #define QHSTA_M_SXFR_DESELECTED 0x22 /* SXFR_STATUS Deselected */ 2027 /* Note: QHSTA_M_SXFR_XFR_OFLW is identical to QHSTA_M_DATA_OVER_RUN. */ 2028 #define QHSTA_M_SXFR_XFR_OFLW 0x12 /* SXFR_STATUS Transfer Overflow */ 2029 #define QHSTA_M_SXFR_XFR_PH_ERR 0x24 /* SXFR_STATUS Transfer Phase Error */ 2030 #define QHSTA_M_SXFR_UNKNOWN_ERROR 0x25 /* SXFR_STATUS Unknown Error */ 2031 #define QHSTA_M_SCSI_BUS_RESET 0x30 /* Request aborted from SBR */ 2032 #define QHSTA_M_SCSI_BUS_RESET_UNSOL 0x31 /* Request aborted from unsol. SBR */ 2033 #define QHSTA_M_BUS_DEVICE_RESET 0x32 /* Request aborted from BDR */ 2034 #define QHSTA_M_DIRECTION_ERR 0x35 /* Data Phase mismatch */ 2035 #define QHSTA_M_DIRECTION_ERR_HUNG 0x36 /* Data Phase mismatch and bus hang */ 2036 #define QHSTA_M_WTM_TIMEOUT 0x41 2037 #define QHSTA_M_BAD_CMPL_STATUS_IN 0x42 2038 #define QHSTA_M_NO_AUTO_REQ_SENSE 0x43 2039 #define QHSTA_M_AUTO_REQ_SENSE_FAIL 0x44 2040 #define QHSTA_M_INVALID_DEVICE 0x45 /* Bad target ID */ 2041 #define QHSTA_M_FROZEN_TIDQ 0x46 /* TID Queue frozen. */ 2042 #define QHSTA_M_SGBACKUP_ERROR 0x47 /* Scatter-Gather backup error */ 2043 2044 /* Return the address that is aligned at the next doubleword >= to 'addr'. */ 2045 #define ADV_32BALIGN(addr) (((ulong) (addr) + 0x1F) & ~0x1F) 2046 2047 /* 2048 * Total contiguous memory needed for driver SG blocks. 2049 * 2050 * ADV_MAX_SG_LIST must be defined by a driver. It is the maximum 2051 * number of scatter-gather elements the driver supports in a 2052 * single request. 2053 */ 2054 2055 #define ADV_SG_LIST_MAX_BYTE_SIZE \ 2056 (sizeof(ADV_SG_BLOCK) * \ 2057 ((ADV_MAX_SG_LIST + (NO_OF_SG_PER_BLOCK - 1))/NO_OF_SG_PER_BLOCK)) 2058 2059 /* struct asc_board flags */ 2060 #define ASC_IS_WIDE_BOARD 0x04 /* AdvanSys Wide Board */ 2061 2062 #define ASC_NARROW_BOARD(boardp) (((boardp)->flags & ASC_IS_WIDE_BOARD) == 0) 2063 2064 #define NO_ISA_DMA 0xff /* No ISA DMA Channel Used */ 2065 2066 #define ASC_INFO_SIZE 128 /* advansys_info() line size */ 2067 2068 /* Asc Library return codes */ 2069 #define ASC_TRUE 1 2070 #define ASC_FALSE 0 2071 #define ASC_NOERROR 1 2072 #define ASC_BUSY 0 2073 #define ASC_ERROR (-1) 2074 2075 #define ASC_STATS(shost, counter) ASC_STATS_ADD(shost, counter, 1) 2076 #ifndef ADVANSYS_STATS 2077 #define ASC_STATS_ADD(shost, counter, count) 2078 #else /* ADVANSYS_STATS */ 2079 #define ASC_STATS_ADD(shost, counter, count) \ 2080 (((struct asc_board *) shost_priv(shost))->asc_stats.counter += (count)) 2081 #endif /* ADVANSYS_STATS */ 2082 2083 /* If the result wraps when calculating tenths, return 0. */ 2084 #define ASC_TENTHS(num, den) \ 2085 (((10 * ((num)/(den))) > (((num) * 10)/(den))) ? \ 2086 0 : ((((num) * 10)/(den)) - (10 * ((num)/(den))))) 2087 2088 /* 2089 * Display a message to the console. 2090 */ 2091 #define ASC_PRINT(s) \ 2092 { \ 2093 printk("advansys: "); \ 2094 printk(s); \ 2095 } 2096 2097 #define ASC_PRINT1(s, a1) \ 2098 { \ 2099 printk("advansys: "); \ 2100 printk((s), (a1)); \ 2101 } 2102 2103 #define ASC_PRINT2(s, a1, a2) \ 2104 { \ 2105 printk("advansys: "); \ 2106 printk((s), (a1), (a2)); \ 2107 } 2108 2109 #define ASC_PRINT3(s, a1, a2, a3) \ 2110 { \ 2111 printk("advansys: "); \ 2112 printk((s), (a1), (a2), (a3)); \ 2113 } 2114 2115 #define ASC_PRINT4(s, a1, a2, a3, a4) \ 2116 { \ 2117 printk("advansys: "); \ 2118 printk((s), (a1), (a2), (a3), (a4)); \ 2119 } 2120 2121 #ifndef ADVANSYS_DEBUG 2122 2123 #define ASC_DBG(lvl, s...) 2124 #define ASC_DBG_PRT_SCSI_HOST(lvl, s) 2125 #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp) 2126 #define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp) 2127 #define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone) 2128 #define ADV_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp) 2129 #define ASC_DBG_PRT_HEX(lvl, name, start, length) 2130 #define ASC_DBG_PRT_CDB(lvl, cdb, len) 2131 #define ASC_DBG_PRT_SENSE(lvl, sense, len) 2132 #define ASC_DBG_PRT_INQUIRY(lvl, inq, len) 2133 2134 #else /* ADVANSYS_DEBUG */ 2135 2136 /* 2137 * Debugging Message Levels: 2138 * 0: Errors Only 2139 * 1: High-Level Tracing 2140 * 2-N: Verbose Tracing 2141 */ 2142 2143 #define ASC_DBG(lvl, format, arg...) { \ 2144 if (asc_dbglvl >= (lvl)) \ 2145 printk(KERN_DEBUG "%s: %s: " format, DRV_NAME, \ 2146 __func__ , ## arg); \ 2147 } 2148 2149 #define ASC_DBG_PRT_SCSI_HOST(lvl, s) \ 2150 { \ 2151 if (asc_dbglvl >= (lvl)) { \ 2152 asc_prt_scsi_host(s); \ 2153 } \ 2154 } 2155 2156 #define ASC_DBG_PRT_ASC_SCSI_Q(lvl, scsiqp) \ 2157 { \ 2158 if (asc_dbglvl >= (lvl)) { \ 2159 asc_prt_asc_scsi_q(scsiqp); \ 2160 } \ 2161 } 2162 2163 #define ASC_DBG_PRT_ASC_QDONE_INFO(lvl, qdone) \ 2164 { \ 2165 if (asc_dbglvl >= (lvl)) { \ 2166 asc_prt_asc_qdone_info(qdone); \ 2167 } \ 2168 } 2169 2170 #define ASC_DBG_PRT_ADV_SCSI_REQ_Q(lvl, scsiqp) \ 2171 { \ 2172 if (asc_dbglvl >= (lvl)) { \ 2173 asc_prt_adv_scsi_req_q(scsiqp); \ 2174 } \ 2175 } 2176 2177 #define ASC_DBG_PRT_HEX(lvl, name, start, length) \ 2178 { \ 2179 if (asc_dbglvl >= (lvl)) { \ 2180 asc_prt_hex((name), (start), (length)); \ 2181 } \ 2182 } 2183 2184 #define ASC_DBG_PRT_CDB(lvl, cdb, len) \ 2185 ASC_DBG_PRT_HEX((lvl), "CDB", (uchar *) (cdb), (len)); 2186 2187 #define ASC_DBG_PRT_SENSE(lvl, sense, len) \ 2188 ASC_DBG_PRT_HEX((lvl), "SENSE", (uchar *) (sense), (len)); 2189 2190 #define ASC_DBG_PRT_INQUIRY(lvl, inq, len) \ 2191 ASC_DBG_PRT_HEX((lvl), "INQUIRY", (uchar *) (inq), (len)); 2192 #endif /* ADVANSYS_DEBUG */ 2193 2194 #ifdef ADVANSYS_STATS 2195 2196 /* Per board statistics structure */ 2197 struct asc_stats { 2198 /* Driver Entrypoint Statistics */ 2199 unsigned int queuecommand; /* # calls to advansys_queuecommand() */ 2200 unsigned int reset; /* # calls to advansys_eh_bus_reset() */ 2201 unsigned int biosparam; /* # calls to advansys_biosparam() */ 2202 unsigned int interrupt; /* # advansys_interrupt() calls */ 2203 unsigned int callback; /* # calls to asc/adv_isr_callback() */ 2204 unsigned int done; /* # calls to request's scsi_done function */ 2205 unsigned int build_error; /* # asc/adv_build_req() ASC_ERROR returns. */ 2206 unsigned int adv_build_noreq; /* # adv_build_req() adv_req_t alloc. fail. */ 2207 unsigned int adv_build_nosg; /* # adv_build_req() adv_sgblk_t alloc. fail. */ 2208 /* AscExeScsiQueue()/AdvExeScsiQueue() Statistics */ 2209 unsigned int exe_noerror; /* # ASC_NOERROR returns. */ 2210 unsigned int exe_busy; /* # ASC_BUSY returns. */ 2211 unsigned int exe_error; /* # ASC_ERROR returns. */ 2212 unsigned int exe_unknown; /* # unknown returns. */ 2213 /* Data Transfer Statistics */ 2214 unsigned int xfer_cnt; /* # I/O requests received */ 2215 unsigned int xfer_elem; /* # scatter-gather elements */ 2216 unsigned int xfer_sect; /* # 512-byte blocks */ 2217 }; 2218 #endif /* ADVANSYS_STATS */ 2219 2220 /* 2221 * Structure allocated for each board. 2222 * 2223 * This structure is allocated by scsi_host_alloc() at the end 2224 * of the 'Scsi_Host' structure starting at the 'hostdata' 2225 * field. It is guaranteed to be allocated from DMA-able memory. 2226 */ 2227 struct asc_board { 2228 struct device *dev; 2229 struct Scsi_Host *shost; 2230 uint flags; /* Board flags */ 2231 unsigned int irq; 2232 union { 2233 ASC_DVC_VAR asc_dvc_var; /* Narrow board */ 2234 ADV_DVC_VAR adv_dvc_var; /* Wide board */ 2235 } dvc_var; 2236 union { 2237 ASC_DVC_CFG asc_dvc_cfg; /* Narrow board */ 2238 ADV_DVC_CFG adv_dvc_cfg; /* Wide board */ 2239 } dvc_cfg; 2240 ushort asc_n_io_port; /* Number I/O ports. */ 2241 ADV_SCSI_BIT_ID_TYPE init_tidmask; /* Target init./valid mask */ 2242 ushort reqcnt[ADV_MAX_TID + 1]; /* Starvation request count */ 2243 ADV_SCSI_BIT_ID_TYPE queue_full; /* Queue full mask */ 2244 ushort queue_full_cnt[ADV_MAX_TID + 1]; /* Queue full count */ 2245 union { 2246 ASCEEP_CONFIG asc_eep; /* Narrow EEPROM config. */ 2247 ADVEEP_3550_CONFIG adv_3550_eep; /* 3550 EEPROM config. */ 2248 ADVEEP_38C0800_CONFIG adv_38C0800_eep; /* 38C0800 EEPROM config. */ 2249 ADVEEP_38C1600_CONFIG adv_38C1600_eep; /* 38C1600 EEPROM config. */ 2250 } eep_config; 2251 /* /proc/scsi/advansys/[0...] */ 2252 #ifdef ADVANSYS_STATS 2253 struct asc_stats asc_stats; /* Board statistics */ 2254 #endif /* ADVANSYS_STATS */ 2255 /* 2256 * The following fields are used only for Narrow Boards. 2257 */ 2258 uchar sdtr_data[ASC_MAX_TID + 1]; /* SDTR information */ 2259 /* 2260 * The following fields are used only for Wide Boards. 2261 */ 2262 void __iomem *ioremap_addr; /* I/O Memory remap address. */ 2263 ushort ioport; /* I/O Port address. */ 2264 adv_req_t *adv_reqp; /* Request structures. */ 2265 dma_addr_t adv_reqp_addr; 2266 size_t adv_reqp_size; 2267 struct dma_pool *adv_sgblk_pool; /* Scatter-gather structures. */ 2268 ushort bios_signature; /* BIOS Signature. */ 2269 ushort bios_version; /* BIOS Version. */ 2270 ushort bios_codeseg; /* BIOS Code Segment. */ 2271 ushort bios_codelen; /* BIOS Code Segment Length. */ 2272 }; 2273 2274 #define asc_dvc_to_board(asc_dvc) container_of(asc_dvc, struct asc_board, \ 2275 dvc_var.asc_dvc_var) 2276 #define adv_dvc_to_board(adv_dvc) container_of(adv_dvc, struct asc_board, \ 2277 dvc_var.adv_dvc_var) 2278 #define adv_dvc_to_pdev(adv_dvc) to_pci_dev(adv_dvc_to_board(adv_dvc)->dev) 2279 2280 #ifdef ADVANSYS_DEBUG 2281 static int asc_dbglvl = 3; 2282 2283 /* 2284 * asc_prt_asc_dvc_var() 2285 */ asc_prt_asc_dvc_var(ASC_DVC_VAR * h)2286 static void asc_prt_asc_dvc_var(ASC_DVC_VAR *h) 2287 { 2288 printk("ASC_DVC_VAR at addr 0x%lx\n", (ulong)h); 2289 2290 printk(" iop_base 0x%x, err_code 0x%x, dvc_cntl 0x%x, bug_fix_cntl " 2291 "%d,\n", h->iop_base, h->err_code, h->dvc_cntl, h->bug_fix_cntl); 2292 2293 printk(" bus_type %d, init_sdtr 0x%x,\n", h->bus_type, 2294 (unsigned)h->init_sdtr); 2295 2296 printk(" sdtr_done 0x%x, use_tagged_qng 0x%x, unit_not_ready 0x%x, " 2297 "chip_no 0x%x,\n", (unsigned)h->sdtr_done, 2298 (unsigned)h->use_tagged_qng, (unsigned)h->unit_not_ready, 2299 (unsigned)h->chip_no); 2300 2301 printk(" queue_full_or_busy 0x%x, start_motor 0x%x, scsi_reset_wait " 2302 "%u,\n", (unsigned)h->queue_full_or_busy, 2303 (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); 2304 2305 printk(" is_in_int %u, max_total_qng %u, cur_total_qng %u, " 2306 "in_critical_cnt %u,\n", (unsigned)h->is_in_int, 2307 (unsigned)h->max_total_qng, (unsigned)h->cur_total_qng, 2308 (unsigned)h->in_critical_cnt); 2309 2310 printk(" last_q_shortage %u, init_state 0x%x, no_scam 0x%x, " 2311 "pci_fix_asyn_xfer 0x%x,\n", (unsigned)h->last_q_shortage, 2312 (unsigned)h->init_state, (unsigned)h->no_scam, 2313 (unsigned)h->pci_fix_asyn_xfer); 2314 2315 printk(" cfg 0x%lx\n", (ulong)h->cfg); 2316 } 2317 2318 /* 2319 * asc_prt_asc_dvc_cfg() 2320 */ asc_prt_asc_dvc_cfg(ASC_DVC_CFG * h)2321 static void asc_prt_asc_dvc_cfg(ASC_DVC_CFG *h) 2322 { 2323 printk("ASC_DVC_CFG at addr 0x%lx\n", (ulong)h); 2324 2325 printk(" can_tagged_qng 0x%x, cmd_qng_enabled 0x%x,\n", 2326 h->can_tagged_qng, h->cmd_qng_enabled); 2327 printk(" disc_enable 0x%x, sdtr_enable 0x%x,\n", 2328 h->disc_enable, h->sdtr_enable); 2329 2330 printk(" chip_scsi_id %d, chip_version %d,\n", 2331 h->chip_scsi_id, h->chip_version); 2332 2333 printk(" mcode_date 0x%x, mcode_version %d\n", 2334 h->mcode_date, h->mcode_version); 2335 } 2336 2337 /* 2338 * asc_prt_adv_dvc_var() 2339 * 2340 * Display an ADV_DVC_VAR structure. 2341 */ asc_prt_adv_dvc_var(ADV_DVC_VAR * h)2342 static void asc_prt_adv_dvc_var(ADV_DVC_VAR *h) 2343 { 2344 printk(" ADV_DVC_VAR at addr 0x%lx\n", (ulong)h); 2345 2346 printk(" iop_base 0x%lx, err_code 0x%x, ultra_able 0x%x\n", 2347 (ulong)h->iop_base, h->err_code, (unsigned)h->ultra_able); 2348 2349 printk(" sdtr_able 0x%x, wdtr_able 0x%x\n", 2350 (unsigned)h->sdtr_able, (unsigned)h->wdtr_able); 2351 2352 printk(" start_motor 0x%x, scsi_reset_wait 0x%x\n", 2353 (unsigned)h->start_motor, (unsigned)h->scsi_reset_wait); 2354 2355 printk(" max_host_qng %u, max_dvc_qng %u, carr_freelist 0x%p\n", 2356 (unsigned)h->max_host_qng, (unsigned)h->max_dvc_qng, 2357 h->carr_freelist); 2358 2359 printk(" icq_sp 0x%p, irq_sp 0x%p\n", h->icq_sp, h->irq_sp); 2360 2361 printk(" no_scam 0x%x, tagqng_able 0x%x\n", 2362 (unsigned)h->no_scam, (unsigned)h->tagqng_able); 2363 2364 printk(" chip_scsi_id 0x%x, cfg 0x%lx\n", 2365 (unsigned)h->chip_scsi_id, (ulong)h->cfg); 2366 } 2367 2368 /* 2369 * asc_prt_adv_dvc_cfg() 2370 * 2371 * Display an ADV_DVC_CFG structure. 2372 */ asc_prt_adv_dvc_cfg(ADV_DVC_CFG * h)2373 static void asc_prt_adv_dvc_cfg(ADV_DVC_CFG *h) 2374 { 2375 printk(" ADV_DVC_CFG at addr 0x%lx\n", (ulong)h); 2376 2377 printk(" disc_enable 0x%x, termination 0x%x\n", 2378 h->disc_enable, h->termination); 2379 2380 printk(" chip_version 0x%x, mcode_date 0x%x\n", 2381 h->chip_version, h->mcode_date); 2382 2383 printk(" mcode_version 0x%x, control_flag 0x%x\n", 2384 h->mcode_version, h->control_flag); 2385 } 2386 2387 /* 2388 * asc_prt_scsi_host() 2389 */ asc_prt_scsi_host(struct Scsi_Host * s)2390 static void asc_prt_scsi_host(struct Scsi_Host *s) 2391 { 2392 struct asc_board *boardp = shost_priv(s); 2393 2394 printk("Scsi_Host at addr 0x%p, device %s\n", s, dev_name(boardp->dev)); 2395 printk(" host_busy %d, host_no %d,\n", 2396 scsi_host_busy(s), s->host_no); 2397 2398 printk(" base 0x%lx, io_port 0x%lx, irq %d,\n", 2399 (ulong)s->base, (ulong)s->io_port, boardp->irq); 2400 2401 printk(" dma_channel %d, this_id %d, can_queue %d,\n", 2402 s->dma_channel, s->this_id, s->can_queue); 2403 2404 printk(" cmd_per_lun %d, sg_tablesize %d\n", 2405 s->cmd_per_lun, s->sg_tablesize); 2406 2407 if (ASC_NARROW_BOARD(boardp)) { 2408 asc_prt_asc_dvc_var(&boardp->dvc_var.asc_dvc_var); 2409 asc_prt_asc_dvc_cfg(&boardp->dvc_cfg.asc_dvc_cfg); 2410 } else { 2411 asc_prt_adv_dvc_var(&boardp->dvc_var.adv_dvc_var); 2412 asc_prt_adv_dvc_cfg(&boardp->dvc_cfg.adv_dvc_cfg); 2413 } 2414 } 2415 2416 /* 2417 * asc_prt_hex() 2418 * 2419 * Print hexadecimal output in 4 byte groupings 32 bytes 2420 * or 8 double-words per line. 2421 */ asc_prt_hex(char * f,uchar * s,int l)2422 static void asc_prt_hex(char *f, uchar *s, int l) 2423 { 2424 int i; 2425 int j; 2426 int k; 2427 int m; 2428 2429 printk("%s: (%d bytes)\n", f, l); 2430 2431 for (i = 0; i < l; i += 32) { 2432 2433 /* Display a maximum of 8 double-words per line. */ 2434 if ((k = (l - i) / 4) >= 8) { 2435 k = 8; 2436 m = 0; 2437 } else { 2438 m = (l - i) % 4; 2439 } 2440 2441 for (j = 0; j < k; j++) { 2442 printk(" %2.2X%2.2X%2.2X%2.2X", 2443 (unsigned)s[i + (j * 4)], 2444 (unsigned)s[i + (j * 4) + 1], 2445 (unsigned)s[i + (j * 4) + 2], 2446 (unsigned)s[i + (j * 4) + 3]); 2447 } 2448 2449 switch (m) { 2450 case 0: 2451 default: 2452 break; 2453 case 1: 2454 printk(" %2.2X", (unsigned)s[i + (j * 4)]); 2455 break; 2456 case 2: 2457 printk(" %2.2X%2.2X", 2458 (unsigned)s[i + (j * 4)], 2459 (unsigned)s[i + (j * 4) + 1]); 2460 break; 2461 case 3: 2462 printk(" %2.2X%2.2X%2.2X", 2463 (unsigned)s[i + (j * 4) + 1], 2464 (unsigned)s[i + (j * 4) + 2], 2465 (unsigned)s[i + (j * 4) + 3]); 2466 break; 2467 } 2468 2469 printk("\n"); 2470 } 2471 } 2472 2473 /* 2474 * asc_prt_asc_scsi_q() 2475 */ asc_prt_asc_scsi_q(ASC_SCSI_Q * q)2476 static void asc_prt_asc_scsi_q(ASC_SCSI_Q *q) 2477 { 2478 ASC_SG_HEAD *sgp; 2479 int i; 2480 2481 printk("ASC_SCSI_Q at addr 0x%lx\n", (ulong)q); 2482 2483 printk 2484 (" target_ix 0x%x, target_lun %u, srb_tag 0x%x, tag_code 0x%x,\n", 2485 q->q2.target_ix, q->q1.target_lun, q->q2.srb_tag, 2486 q->q2.tag_code); 2487 2488 printk 2489 (" data_addr 0x%lx, data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", 2490 (ulong)le32_to_cpu(q->q1.data_addr), 2491 (ulong)le32_to_cpu(q->q1.data_cnt), 2492 (ulong)le32_to_cpu(q->q1.sense_addr), q->q1.sense_len); 2493 2494 printk(" cdbptr 0x%lx, cdb_len %u, sg_head 0x%lx, sg_queue_cnt %u\n", 2495 (ulong)q->cdbptr, q->q2.cdb_len, 2496 (ulong)q->sg_head, q->q1.sg_queue_cnt); 2497 2498 if (q->sg_head) { 2499 sgp = q->sg_head; 2500 printk("ASC_SG_HEAD at addr 0x%lx\n", (ulong)sgp); 2501 printk(" entry_cnt %u, queue_cnt %u\n", sgp->entry_cnt, 2502 sgp->queue_cnt); 2503 for (i = 0; i < sgp->entry_cnt; i++) { 2504 printk(" [%u]: addr 0x%lx, bytes %lu\n", 2505 i, (ulong)le32_to_cpu(sgp->sg_list[i].addr), 2506 (ulong)le32_to_cpu(sgp->sg_list[i].bytes)); 2507 } 2508 2509 } 2510 } 2511 2512 /* 2513 * asc_prt_asc_qdone_info() 2514 */ asc_prt_asc_qdone_info(ASC_QDONE_INFO * q)2515 static void asc_prt_asc_qdone_info(ASC_QDONE_INFO *q) 2516 { 2517 printk("ASC_QDONE_INFO at addr 0x%lx\n", (ulong)q); 2518 printk(" srb_tag 0x%x, target_ix %u, cdb_len %u, tag_code %u,\n", 2519 q->d2.srb_tag, q->d2.target_ix, q->d2.cdb_len, 2520 q->d2.tag_code); 2521 printk 2522 (" done_stat 0x%x, host_stat 0x%x, scsi_stat 0x%x, scsi_msg 0x%x\n", 2523 q->d3.done_stat, q->d3.host_stat, q->d3.scsi_stat, q->d3.scsi_msg); 2524 } 2525 2526 /* 2527 * asc_prt_adv_sgblock() 2528 * 2529 * Display an ADV_SG_BLOCK structure. 2530 */ asc_prt_adv_sgblock(int sgblockno,ADV_SG_BLOCK * b)2531 static void asc_prt_adv_sgblock(int sgblockno, ADV_SG_BLOCK *b) 2532 { 2533 int i; 2534 2535 printk(" ADV_SG_BLOCK at addr 0x%lx (sgblockno %d)\n", 2536 (ulong)b, sgblockno); 2537 printk(" sg_cnt %u, sg_ptr 0x%x\n", 2538 b->sg_cnt, (u32)le32_to_cpu(b->sg_ptr)); 2539 BUG_ON(b->sg_cnt > NO_OF_SG_PER_BLOCK); 2540 if (b->sg_ptr != 0) 2541 BUG_ON(b->sg_cnt != NO_OF_SG_PER_BLOCK); 2542 for (i = 0; i < b->sg_cnt; i++) { 2543 printk(" [%u]: sg_addr 0x%x, sg_count 0x%x\n", 2544 i, (u32)le32_to_cpu(b->sg_list[i].sg_addr), 2545 (u32)le32_to_cpu(b->sg_list[i].sg_count)); 2546 } 2547 } 2548 2549 /* 2550 * asc_prt_adv_scsi_req_q() 2551 * 2552 * Display an ADV_SCSI_REQ_Q structure. 2553 */ asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q * q)2554 static void asc_prt_adv_scsi_req_q(ADV_SCSI_REQ_Q *q) 2555 { 2556 int sg_blk_cnt; 2557 struct adv_sg_block *sg_ptr; 2558 adv_sgblk_t *sgblkp; 2559 2560 printk("ADV_SCSI_REQ_Q at addr 0x%lx\n", (ulong)q); 2561 2562 printk(" target_id %u, target_lun %u, srb_tag 0x%x\n", 2563 q->target_id, q->target_lun, q->srb_tag); 2564 2565 printk(" cntl 0x%x, data_addr 0x%lx\n", 2566 q->cntl, (ulong)le32_to_cpu(q->data_addr)); 2567 2568 printk(" data_cnt %lu, sense_addr 0x%lx, sense_len %u,\n", 2569 (ulong)le32_to_cpu(q->data_cnt), 2570 (ulong)le32_to_cpu(q->sense_addr), q->sense_len); 2571 2572 printk 2573 (" cdb_len %u, done_status 0x%x, host_status 0x%x, scsi_status 0x%x\n", 2574 q->cdb_len, q->done_status, q->host_status, q->scsi_status); 2575 2576 printk(" sg_working_ix 0x%x, target_cmd %u\n", 2577 q->sg_working_ix, q->target_cmd); 2578 2579 printk(" scsiq_rptr 0x%lx, sg_real_addr 0x%lx, sg_list_ptr 0x%lx\n", 2580 (ulong)le32_to_cpu(q->scsiq_rptr), 2581 (ulong)le32_to_cpu(q->sg_real_addr), (ulong)q->sg_list_ptr); 2582 2583 /* Display the request's ADV_SG_BLOCK structures. */ 2584 if (q->sg_list_ptr != NULL) { 2585 sgblkp = container_of(q->sg_list_ptr, adv_sgblk_t, sg_block); 2586 sg_blk_cnt = 0; 2587 while (sgblkp) { 2588 sg_ptr = &sgblkp->sg_block; 2589 asc_prt_adv_sgblock(sg_blk_cnt, sg_ptr); 2590 if (sg_ptr->sg_ptr == 0) { 2591 break; 2592 } 2593 sgblkp = sgblkp->next_sgblkp; 2594 sg_blk_cnt++; 2595 } 2596 } 2597 } 2598 #endif /* ADVANSYS_DEBUG */ 2599 2600 /* 2601 * advansys_info() 2602 * 2603 * Return suitable for printing on the console with the argument 2604 * adapter's configuration information. 2605 * 2606 * Note: The information line should not exceed ASC_INFO_SIZE bytes, 2607 * otherwise the static 'info' array will be overrun. 2608 */ advansys_info(struct Scsi_Host * shost)2609 static const char *advansys_info(struct Scsi_Host *shost) 2610 { 2611 static char info[ASC_INFO_SIZE]; 2612 struct asc_board *boardp = shost_priv(shost); 2613 ASC_DVC_VAR *asc_dvc_varp; 2614 ADV_DVC_VAR *adv_dvc_varp; 2615 char *busname; 2616 char *widename = NULL; 2617 2618 if (ASC_NARROW_BOARD(boardp)) { 2619 asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; 2620 ASC_DBG(1, "begin\n"); 2621 2622 if (asc_dvc_varp->bus_type & ASC_IS_VL) { 2623 busname = "VL"; 2624 } else if (asc_dvc_varp->bus_type & ASC_IS_EISA) { 2625 busname = "EISA"; 2626 } else if (asc_dvc_varp->bus_type & ASC_IS_PCI) { 2627 if ((asc_dvc_varp->bus_type & ASC_IS_PCI_ULTRA) 2628 == ASC_IS_PCI_ULTRA) { 2629 busname = "PCI Ultra"; 2630 } else { 2631 busname = "PCI"; 2632 } 2633 } else { 2634 busname = "?"; 2635 shost_printk(KERN_ERR, shost, "unknown bus " 2636 "type %d\n", asc_dvc_varp->bus_type); 2637 } 2638 sprintf(info, 2639 "AdvanSys SCSI %s: %s: IO 0x%lX-0x%lX, IRQ 0x%X", 2640 ASC_VERSION, busname, (ulong)shost->io_port, 2641 (ulong)shost->io_port + ASC_IOADR_GAP - 1, 2642 boardp->irq); 2643 } else { 2644 /* 2645 * Wide Adapter Information 2646 * 2647 * Memory-mapped I/O is used instead of I/O space to access 2648 * the adapter, but display the I/O Port range. The Memory 2649 * I/O address is displayed through the driver /proc file. 2650 */ 2651 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; 2652 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 2653 widename = "Ultra-Wide"; 2654 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 2655 widename = "Ultra2-Wide"; 2656 } else { 2657 widename = "Ultra3-Wide"; 2658 } 2659 sprintf(info, 2660 "AdvanSys SCSI %s: PCI %s: PCIMEM 0x%lX-0x%lX, IRQ 0x%X", 2661 ASC_VERSION, widename, (ulong)adv_dvc_varp->iop_base, 2662 (ulong)adv_dvc_varp->iop_base + boardp->asc_n_io_port - 1, boardp->irq); 2663 } 2664 BUG_ON(strlen(info) >= ASC_INFO_SIZE); 2665 ASC_DBG(1, "end\n"); 2666 return info; 2667 } 2668 2669 #ifdef CONFIG_PROC_FS 2670 2671 /* 2672 * asc_prt_board_devices() 2673 * 2674 * Print driver information for devices attached to the board. 2675 */ asc_prt_board_devices(struct seq_file * m,struct Scsi_Host * shost)2676 static void asc_prt_board_devices(struct seq_file *m, struct Scsi_Host *shost) 2677 { 2678 struct asc_board *boardp = shost_priv(shost); 2679 int chip_scsi_id; 2680 int i; 2681 2682 seq_printf(m, 2683 "\nDevice Information for AdvanSys SCSI Host %d:\n", 2684 shost->host_no); 2685 2686 if (ASC_NARROW_BOARD(boardp)) { 2687 chip_scsi_id = boardp->dvc_cfg.asc_dvc_cfg.chip_scsi_id; 2688 } else { 2689 chip_scsi_id = boardp->dvc_var.adv_dvc_var.chip_scsi_id; 2690 } 2691 2692 seq_puts(m, "Target IDs Detected:"); 2693 for (i = 0; i <= ADV_MAX_TID; i++) { 2694 if (boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) 2695 seq_printf(m, " %X,", i); 2696 } 2697 seq_printf(m, " (%X=Host Adapter)\n", chip_scsi_id); 2698 } 2699 2700 /* 2701 * Display Wide Board BIOS Information. 2702 */ asc_prt_adv_bios(struct seq_file * m,struct Scsi_Host * shost)2703 static void asc_prt_adv_bios(struct seq_file *m, struct Scsi_Host *shost) 2704 { 2705 struct asc_board *boardp = shost_priv(shost); 2706 ushort major, minor, letter; 2707 2708 seq_puts(m, "\nROM BIOS Version: "); 2709 2710 /* 2711 * If the BIOS saved a valid signature, then fill in 2712 * the BIOS code segment base address. 2713 */ 2714 if (boardp->bios_signature != 0x55AA) { 2715 seq_puts(m, "Disabled or Pre-3.1\n" 2716 "BIOS either disabled or Pre-3.1. If it is pre-3.1, then a newer version\n" 2717 "can be found at the ConnectCom FTP site: ftp://ftp.connectcom.net/pub\n"); 2718 } else { 2719 major = (boardp->bios_version >> 12) & 0xF; 2720 minor = (boardp->bios_version >> 8) & 0xF; 2721 letter = (boardp->bios_version & 0xFF); 2722 2723 seq_printf(m, "%d.%d%c\n", 2724 major, minor, 2725 letter >= 26 ? '?' : letter + 'A'); 2726 /* 2727 * Current available ROM BIOS release is 3.1I for UW 2728 * and 3.2I for U2W. This code doesn't differentiate 2729 * UW and U2W boards. 2730 */ 2731 if (major < 3 || (major <= 3 && minor < 1) || 2732 (major <= 3 && minor <= 1 && letter < ('I' - 'A'))) { 2733 seq_puts(m, "Newer version of ROM BIOS is available at the ConnectCom FTP site:\n" 2734 "ftp://ftp.connectcom.net/pub\n"); 2735 } 2736 } 2737 } 2738 2739 /* 2740 * Add serial number to information bar if signature AAh 2741 * is found in at bit 15-9 (7 bits) of word 1. 2742 * 2743 * Serial Number consists fo 12 alpha-numeric digits. 2744 * 2745 * 1 - Product type (A,B,C,D..) Word0: 15-13 (3 bits) 2746 * 2 - MFG Location (A,B,C,D..) Word0: 12-10 (3 bits) 2747 * 3-4 - Product ID (0-99) Word0: 9-0 (10 bits) 2748 * 5 - Product revision (A-J) Word0: " " 2749 * 2750 * Signature Word1: 15-9 (7 bits) 2751 * 6 - Year (0-9) Word1: 8-6 (3 bits) & Word2: 15 (1 bit) 2752 * 7-8 - Week of the year (1-52) Word1: 5-0 (6 bits) 2753 * 2754 * 9-12 - Serial Number (A001-Z999) Word2: 14-0 (15 bits) 2755 * 2756 * Note 1: Only production cards will have a serial number. 2757 * 2758 * Note 2: Signature is most significant 7 bits (0xFE). 2759 * 2760 * Returns ASC_TRUE if serial number found, otherwise returns ASC_FALSE. 2761 */ asc_get_eeprom_string(ushort * serialnum,uchar * cp)2762 static int asc_get_eeprom_string(ushort *serialnum, uchar *cp) 2763 { 2764 ushort w, num; 2765 2766 if ((serialnum[1] & 0xFE00) != ((ushort)0xAA << 8)) { 2767 return ASC_FALSE; 2768 } else { 2769 /* 2770 * First word - 6 digits. 2771 */ 2772 w = serialnum[0]; 2773 2774 /* Product type - 1st digit. */ 2775 if ((*cp = 'A' + ((w & 0xE000) >> 13)) == 'H') { 2776 /* Product type is P=Prototype */ 2777 *cp += 0x8; 2778 } 2779 cp++; 2780 2781 /* Manufacturing location - 2nd digit. */ 2782 *cp++ = 'A' + ((w & 0x1C00) >> 10); 2783 2784 /* Product ID - 3rd, 4th digits. */ 2785 num = w & 0x3FF; 2786 *cp++ = '0' + (num / 100); 2787 num %= 100; 2788 *cp++ = '0' + (num / 10); 2789 2790 /* Product revision - 5th digit. */ 2791 *cp++ = 'A' + (num % 10); 2792 2793 /* 2794 * Second word 2795 */ 2796 w = serialnum[1]; 2797 2798 /* 2799 * Year - 6th digit. 2800 * 2801 * If bit 15 of third word is set, then the 2802 * last digit of the year is greater than 7. 2803 */ 2804 if (serialnum[2] & 0x8000) { 2805 *cp++ = '8' + ((w & 0x1C0) >> 6); 2806 } else { 2807 *cp++ = '0' + ((w & 0x1C0) >> 6); 2808 } 2809 2810 /* Week of year - 7th, 8th digits. */ 2811 num = w & 0x003F; 2812 *cp++ = '0' + num / 10; 2813 num %= 10; 2814 *cp++ = '0' + num; 2815 2816 /* 2817 * Third word 2818 */ 2819 w = serialnum[2] & 0x7FFF; 2820 2821 /* Serial number - 9th digit. */ 2822 *cp++ = 'A' + (w / 1000); 2823 2824 /* 10th, 11th, 12th digits. */ 2825 num = w % 1000; 2826 *cp++ = '0' + num / 100; 2827 num %= 100; 2828 *cp++ = '0' + num / 10; 2829 num %= 10; 2830 *cp++ = '0' + num; 2831 2832 *cp = '\0'; /* Null Terminate the string. */ 2833 return ASC_TRUE; 2834 } 2835 } 2836 2837 /* 2838 * asc_prt_asc_board_eeprom() 2839 * 2840 * Print board EEPROM configuration. 2841 */ asc_prt_asc_board_eeprom(struct seq_file * m,struct Scsi_Host * shost)2842 static void asc_prt_asc_board_eeprom(struct seq_file *m, struct Scsi_Host *shost) 2843 { 2844 struct asc_board *boardp = shost_priv(shost); 2845 ASCEEP_CONFIG *ep; 2846 int i; 2847 uchar serialstr[13]; 2848 2849 ep = &boardp->eep_config.asc_eep; 2850 2851 seq_printf(m, 2852 "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", 2853 shost->host_no); 2854 2855 if (asc_get_eeprom_string((ushort *)&ep->adapter_info[0], serialstr) 2856 == ASC_TRUE) 2857 seq_printf(m, " Serial Number: %s\n", serialstr); 2858 else if (ep->adapter_info[5] == 0xBB) 2859 seq_puts(m, 2860 " Default Settings Used for EEPROM-less Adapter.\n"); 2861 else 2862 seq_puts(m, " Serial Number Signature Not Present.\n"); 2863 2864 seq_printf(m, 2865 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", 2866 ASC_EEP_GET_CHIP_ID(ep), ep->max_total_qng, 2867 ep->max_tag_qng); 2868 2869 seq_printf(m, 2870 " cntl 0x%x, no_scam 0x%x\n", ep->cntl, ep->no_scam); 2871 2872 seq_puts(m, " Target ID: "); 2873 for (i = 0; i <= ASC_MAX_TID; i++) 2874 seq_printf(m, " %d", i); 2875 2876 seq_puts(m, "\n Disconnects: "); 2877 for (i = 0; i <= ASC_MAX_TID; i++) 2878 seq_printf(m, " %c", 2879 (ep->disc_enable & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 2880 2881 seq_puts(m, "\n Command Queuing: "); 2882 for (i = 0; i <= ASC_MAX_TID; i++) 2883 seq_printf(m, " %c", 2884 (ep->use_cmd_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 2885 2886 seq_puts(m, "\n Start Motor: "); 2887 for (i = 0; i <= ASC_MAX_TID; i++) 2888 seq_printf(m, " %c", 2889 (ep->start_motor & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 2890 2891 seq_puts(m, "\n Synchronous Transfer:"); 2892 for (i = 0; i <= ASC_MAX_TID; i++) 2893 seq_printf(m, " %c", 2894 (ep->init_sdtr & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 2895 seq_putc(m, '\n'); 2896 } 2897 2898 /* 2899 * asc_prt_adv_board_eeprom() 2900 * 2901 * Print board EEPROM configuration. 2902 */ asc_prt_adv_board_eeprom(struct seq_file * m,struct Scsi_Host * shost)2903 static void asc_prt_adv_board_eeprom(struct seq_file *m, struct Scsi_Host *shost) 2904 { 2905 struct asc_board *boardp = shost_priv(shost); 2906 ADV_DVC_VAR *adv_dvc_varp; 2907 int i; 2908 char *termstr; 2909 uchar serialstr[13]; 2910 ADVEEP_3550_CONFIG *ep_3550 = NULL; 2911 ADVEEP_38C0800_CONFIG *ep_38C0800 = NULL; 2912 ADVEEP_38C1600_CONFIG *ep_38C1600 = NULL; 2913 ushort word; 2914 ushort *wordp; 2915 ushort sdtr_speed = 0; 2916 2917 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; 2918 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 2919 ep_3550 = &boardp->eep_config.adv_3550_eep; 2920 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 2921 ep_38C0800 = &boardp->eep_config.adv_38C0800_eep; 2922 } else { 2923 ep_38C1600 = &boardp->eep_config.adv_38C1600_eep; 2924 } 2925 2926 seq_printf(m, 2927 "\nEEPROM Settings for AdvanSys SCSI Host %d:\n", 2928 shost->host_no); 2929 2930 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 2931 wordp = &ep_3550->serial_number_word1; 2932 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 2933 wordp = &ep_38C0800->serial_number_word1; 2934 } else { 2935 wordp = &ep_38C1600->serial_number_word1; 2936 } 2937 2938 if (asc_get_eeprom_string(wordp, serialstr) == ASC_TRUE) 2939 seq_printf(m, " Serial Number: %s\n", serialstr); 2940 else 2941 seq_puts(m, " Serial Number Signature Not Present.\n"); 2942 2943 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) 2944 seq_printf(m, 2945 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", 2946 ep_3550->adapter_scsi_id, 2947 ep_3550->max_host_qng, ep_3550->max_dvc_qng); 2948 else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) 2949 seq_printf(m, 2950 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", 2951 ep_38C0800->adapter_scsi_id, 2952 ep_38C0800->max_host_qng, 2953 ep_38C0800->max_dvc_qng); 2954 else 2955 seq_printf(m, 2956 " Host SCSI ID: %u, Host Queue Size: %u, Device Queue Size: %u\n", 2957 ep_38C1600->adapter_scsi_id, 2958 ep_38C1600->max_host_qng, 2959 ep_38C1600->max_dvc_qng); 2960 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 2961 word = ep_3550->termination; 2962 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 2963 word = ep_38C0800->termination_lvd; 2964 } else { 2965 word = ep_38C1600->termination_lvd; 2966 } 2967 switch (word) { 2968 case 1: 2969 termstr = "Low Off/High Off"; 2970 break; 2971 case 2: 2972 termstr = "Low Off/High On"; 2973 break; 2974 case 3: 2975 termstr = "Low On/High On"; 2976 break; 2977 default: 2978 case 0: 2979 termstr = "Automatic"; 2980 break; 2981 } 2982 2983 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) 2984 seq_printf(m, 2985 " termination: %u (%s), bios_ctrl: 0x%x\n", 2986 ep_3550->termination, termstr, 2987 ep_3550->bios_ctrl); 2988 else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) 2989 seq_printf(m, 2990 " termination: %u (%s), bios_ctrl: 0x%x\n", 2991 ep_38C0800->termination_lvd, termstr, 2992 ep_38C0800->bios_ctrl); 2993 else 2994 seq_printf(m, 2995 " termination: %u (%s), bios_ctrl: 0x%x\n", 2996 ep_38C1600->termination_lvd, termstr, 2997 ep_38C1600->bios_ctrl); 2998 2999 seq_puts(m, " Target ID: "); 3000 for (i = 0; i <= ADV_MAX_TID; i++) 3001 seq_printf(m, " %X", i); 3002 seq_putc(m, '\n'); 3003 3004 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3005 word = ep_3550->disc_enable; 3006 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 3007 word = ep_38C0800->disc_enable; 3008 } else { 3009 word = ep_38C1600->disc_enable; 3010 } 3011 seq_puts(m, " Disconnects: "); 3012 for (i = 0; i <= ADV_MAX_TID; i++) 3013 seq_printf(m, " %c", 3014 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3015 seq_putc(m, '\n'); 3016 3017 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3018 word = ep_3550->tagqng_able; 3019 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 3020 word = ep_38C0800->tagqng_able; 3021 } else { 3022 word = ep_38C1600->tagqng_able; 3023 } 3024 seq_puts(m, " Command Queuing: "); 3025 for (i = 0; i <= ADV_MAX_TID; i++) 3026 seq_printf(m, " %c", 3027 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3028 seq_putc(m, '\n'); 3029 3030 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3031 word = ep_3550->start_motor; 3032 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 3033 word = ep_38C0800->start_motor; 3034 } else { 3035 word = ep_38C1600->start_motor; 3036 } 3037 seq_puts(m, " Start Motor: "); 3038 for (i = 0; i <= ADV_MAX_TID; i++) 3039 seq_printf(m, " %c", 3040 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3041 seq_putc(m, '\n'); 3042 3043 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3044 seq_puts(m, " Synchronous Transfer:"); 3045 for (i = 0; i <= ADV_MAX_TID; i++) 3046 seq_printf(m, " %c", 3047 (ep_3550->sdtr_able & ADV_TID_TO_TIDMASK(i)) ? 3048 'Y' : 'N'); 3049 seq_putc(m, '\n'); 3050 } 3051 3052 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3053 seq_puts(m, " Ultra Transfer: "); 3054 for (i = 0; i <= ADV_MAX_TID; i++) 3055 seq_printf(m, " %c", 3056 (ep_3550->ultra_able & ADV_TID_TO_TIDMASK(i)) 3057 ? 'Y' : 'N'); 3058 seq_putc(m, '\n'); 3059 } 3060 3061 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 3062 word = ep_3550->wdtr_able; 3063 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 3064 word = ep_38C0800->wdtr_able; 3065 } else { 3066 word = ep_38C1600->wdtr_able; 3067 } 3068 seq_puts(m, " Wide Transfer: "); 3069 for (i = 0; i <= ADV_MAX_TID; i++) 3070 seq_printf(m, " %c", 3071 (word & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3072 seq_putc(m, '\n'); 3073 3074 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800 || 3075 adv_dvc_varp->chip_type == ADV_CHIP_ASC38C1600) { 3076 seq_puts(m, " Synchronous Transfer Speed (Mhz):\n "); 3077 for (i = 0; i <= ADV_MAX_TID; i++) { 3078 char *speed_str; 3079 3080 if (i == 0) { 3081 sdtr_speed = adv_dvc_varp->sdtr_speed1; 3082 } else if (i == 4) { 3083 sdtr_speed = adv_dvc_varp->sdtr_speed2; 3084 } else if (i == 8) { 3085 sdtr_speed = adv_dvc_varp->sdtr_speed3; 3086 } else if (i == 12) { 3087 sdtr_speed = adv_dvc_varp->sdtr_speed4; 3088 } 3089 switch (sdtr_speed & ADV_MAX_TID) { 3090 case 0: 3091 speed_str = "Off"; 3092 break; 3093 case 1: 3094 speed_str = " 5"; 3095 break; 3096 case 2: 3097 speed_str = " 10"; 3098 break; 3099 case 3: 3100 speed_str = " 20"; 3101 break; 3102 case 4: 3103 speed_str = " 40"; 3104 break; 3105 case 5: 3106 speed_str = " 80"; 3107 break; 3108 default: 3109 speed_str = "Unk"; 3110 break; 3111 } 3112 seq_printf(m, "%X:%s ", i, speed_str); 3113 if (i == 7) 3114 seq_puts(m, "\n "); 3115 sdtr_speed >>= 4; 3116 } 3117 seq_putc(m, '\n'); 3118 } 3119 } 3120 3121 /* 3122 * asc_prt_driver_conf() 3123 */ asc_prt_driver_conf(struct seq_file * m,struct Scsi_Host * shost)3124 static void asc_prt_driver_conf(struct seq_file *m, struct Scsi_Host *shost) 3125 { 3126 struct asc_board *boardp = shost_priv(shost); 3127 3128 seq_printf(m, 3129 "\nLinux Driver Configuration and Information for AdvanSys SCSI Host %d:\n", 3130 shost->host_no); 3131 3132 seq_printf(m, 3133 " host_busy %d, max_id %u, max_lun %llu, max_channel %u\n", 3134 scsi_host_busy(shost), shost->max_id, 3135 shost->max_lun, shost->max_channel); 3136 3137 seq_printf(m, 3138 " unique_id %d, can_queue %d, this_id %d, sg_tablesize %u, cmd_per_lun %u\n", 3139 shost->unique_id, shost->can_queue, shost->this_id, 3140 shost->sg_tablesize, shost->cmd_per_lun); 3141 3142 seq_printf(m, 3143 " flags 0x%x, last_reset 0x%lx, jiffies 0x%lx, asc_n_io_port 0x%x\n", 3144 boardp->flags, shost->last_reset, jiffies, 3145 boardp->asc_n_io_port); 3146 3147 seq_printf(m, " io_port 0x%lx\n", shost->io_port); 3148 } 3149 3150 /* 3151 * asc_prt_asc_board_info() 3152 * 3153 * Print dynamic board configuration information. 3154 */ asc_prt_asc_board_info(struct seq_file * m,struct Scsi_Host * shost)3155 static void asc_prt_asc_board_info(struct seq_file *m, struct Scsi_Host *shost) 3156 { 3157 struct asc_board *boardp = shost_priv(shost); 3158 int chip_scsi_id; 3159 ASC_DVC_VAR *v; 3160 ASC_DVC_CFG *c; 3161 int i; 3162 int renegotiate = 0; 3163 3164 v = &boardp->dvc_var.asc_dvc_var; 3165 c = &boardp->dvc_cfg.asc_dvc_cfg; 3166 chip_scsi_id = c->chip_scsi_id; 3167 3168 seq_printf(m, 3169 "\nAsc Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", 3170 shost->host_no); 3171 3172 seq_printf(m, " chip_version %u, mcode_date 0x%x, " 3173 "mcode_version 0x%x, err_code %u\n", 3174 c->chip_version, c->mcode_date, c->mcode_version, 3175 v->err_code); 3176 3177 /* Current number of commands waiting for the host. */ 3178 seq_printf(m, 3179 " Total Command Pending: %d\n", v->cur_total_qng); 3180 3181 seq_puts(m, " Command Queuing:"); 3182 for (i = 0; i <= ASC_MAX_TID; i++) { 3183 if ((chip_scsi_id == i) || 3184 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3185 continue; 3186 } 3187 seq_printf(m, " %X:%c", 3188 i, 3189 (v->use_tagged_qng & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3190 } 3191 3192 /* Current number of commands waiting for a device. */ 3193 seq_puts(m, "\n Command Queue Pending:"); 3194 for (i = 0; i <= ASC_MAX_TID; i++) { 3195 if ((chip_scsi_id == i) || 3196 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3197 continue; 3198 } 3199 seq_printf(m, " %X:%u", i, v->cur_dvc_qng[i]); 3200 } 3201 3202 /* Current limit on number of commands that can be sent to a device. */ 3203 seq_puts(m, "\n Command Queue Limit:"); 3204 for (i = 0; i <= ASC_MAX_TID; i++) { 3205 if ((chip_scsi_id == i) || 3206 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3207 continue; 3208 } 3209 seq_printf(m, " %X:%u", i, v->max_dvc_qng[i]); 3210 } 3211 3212 /* Indicate whether the device has returned queue full status. */ 3213 seq_puts(m, "\n Command Queue Full:"); 3214 for (i = 0; i <= ASC_MAX_TID; i++) { 3215 if ((chip_scsi_id == i) || 3216 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3217 continue; 3218 } 3219 if (boardp->queue_full & ADV_TID_TO_TIDMASK(i)) 3220 seq_printf(m, " %X:Y-%d", 3221 i, boardp->queue_full_cnt[i]); 3222 else 3223 seq_printf(m, " %X:N", i); 3224 } 3225 3226 seq_puts(m, "\n Synchronous Transfer:"); 3227 for (i = 0; i <= ASC_MAX_TID; i++) { 3228 if ((chip_scsi_id == i) || 3229 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3230 continue; 3231 } 3232 seq_printf(m, " %X:%c", 3233 i, 3234 (v->sdtr_done & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3235 } 3236 seq_putc(m, '\n'); 3237 3238 for (i = 0; i <= ASC_MAX_TID; i++) { 3239 uchar syn_period_ix; 3240 3241 if ((chip_scsi_id == i) || 3242 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0) || 3243 ((v->init_sdtr & ADV_TID_TO_TIDMASK(i)) == 0)) { 3244 continue; 3245 } 3246 3247 seq_printf(m, " %X:", i); 3248 3249 if ((boardp->sdtr_data[i] & ASC_SYN_MAX_OFFSET) == 0) { 3250 seq_puts(m, " Asynchronous"); 3251 } else { 3252 syn_period_ix = 3253 (boardp->sdtr_data[i] >> 4) & (v->max_sdtr_index - 3254 1); 3255 3256 seq_printf(m, 3257 " Transfer Period Factor: %d (%d.%d Mhz),", 3258 v->sdtr_period_tbl[syn_period_ix], 3259 250 / v->sdtr_period_tbl[syn_period_ix], 3260 ASC_TENTHS(250, 3261 v->sdtr_period_tbl[syn_period_ix])); 3262 3263 seq_printf(m, " REQ/ACK Offset: %d", 3264 boardp->sdtr_data[i] & ASC_SYN_MAX_OFFSET); 3265 } 3266 3267 if ((v->sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { 3268 seq_puts(m, "*\n"); 3269 renegotiate = 1; 3270 } else { 3271 seq_putc(m, '\n'); 3272 } 3273 } 3274 3275 if (renegotiate) { 3276 seq_puts(m, " * = Re-negotiation pending before next command.\n"); 3277 } 3278 } 3279 3280 /* 3281 * asc_prt_adv_board_info() 3282 * 3283 * Print dynamic board configuration information. 3284 */ asc_prt_adv_board_info(struct seq_file * m,struct Scsi_Host * shost)3285 static void asc_prt_adv_board_info(struct seq_file *m, struct Scsi_Host *shost) 3286 { 3287 struct asc_board *boardp = shost_priv(shost); 3288 int i; 3289 ADV_DVC_VAR *v; 3290 ADV_DVC_CFG *c; 3291 AdvPortAddr iop_base; 3292 ushort chip_scsi_id; 3293 ushort lramword; 3294 uchar lrambyte; 3295 ushort tagqng_able; 3296 ushort sdtr_able, wdtr_able; 3297 ushort wdtr_done, sdtr_done; 3298 ushort period = 0; 3299 int renegotiate = 0; 3300 3301 v = &boardp->dvc_var.adv_dvc_var; 3302 c = &boardp->dvc_cfg.adv_dvc_cfg; 3303 iop_base = v->iop_base; 3304 chip_scsi_id = v->chip_scsi_id; 3305 3306 seq_printf(m, 3307 "\nAdv Library Configuration and Statistics for AdvanSys SCSI Host %d:\n", 3308 shost->host_no); 3309 3310 seq_printf(m, 3311 " iop_base 0x%lx, cable_detect: %X, err_code %u\n", 3312 (unsigned long)v->iop_base, 3313 AdvReadWordRegister(iop_base,IOPW_SCSI_CFG1) & CABLE_DETECT, 3314 v->err_code); 3315 3316 seq_printf(m, " chip_version %u, mcode_date 0x%x, " 3317 "mcode_version 0x%x\n", c->chip_version, 3318 c->mcode_date, c->mcode_version); 3319 3320 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 3321 seq_puts(m, " Queuing Enabled:"); 3322 for (i = 0; i <= ADV_MAX_TID; i++) { 3323 if ((chip_scsi_id == i) || 3324 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3325 continue; 3326 } 3327 3328 seq_printf(m, " %X:%c", 3329 i, 3330 (tagqng_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3331 } 3332 3333 seq_puts(m, "\n Queue Limit:"); 3334 for (i = 0; i <= ADV_MAX_TID; i++) { 3335 if ((chip_scsi_id == i) || 3336 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3337 continue; 3338 } 3339 3340 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + i, 3341 lrambyte); 3342 3343 seq_printf(m, " %X:%d", i, lrambyte); 3344 } 3345 3346 seq_puts(m, "\n Command Pending:"); 3347 for (i = 0; i <= ADV_MAX_TID; i++) { 3348 if ((chip_scsi_id == i) || 3349 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3350 continue; 3351 } 3352 3353 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_QUEUED_CMD + i, 3354 lrambyte); 3355 3356 seq_printf(m, " %X:%d", i, lrambyte); 3357 } 3358 seq_putc(m, '\n'); 3359 3360 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 3361 seq_puts(m, " Wide Enabled:"); 3362 for (i = 0; i <= ADV_MAX_TID; i++) { 3363 if ((chip_scsi_id == i) || 3364 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3365 continue; 3366 } 3367 3368 seq_printf(m, " %X:%c", 3369 i, 3370 (wdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3371 } 3372 seq_putc(m, '\n'); 3373 3374 AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, wdtr_done); 3375 seq_puts(m, " Transfer Bit Width:"); 3376 for (i = 0; i <= ADV_MAX_TID; i++) { 3377 if ((chip_scsi_id == i) || 3378 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3379 continue; 3380 } 3381 3382 AdvReadWordLram(iop_base, 3383 ASC_MC_DEVICE_HSHK_CFG_TABLE + (2 * i), 3384 lramword); 3385 3386 seq_printf(m, " %X:%d", 3387 i, (lramword & 0x8000) ? 16 : 8); 3388 3389 if ((wdtr_able & ADV_TID_TO_TIDMASK(i)) && 3390 (wdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { 3391 seq_putc(m, '*'); 3392 renegotiate = 1; 3393 } 3394 } 3395 seq_putc(m, '\n'); 3396 3397 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 3398 seq_puts(m, " Synchronous Enabled:"); 3399 for (i = 0; i <= ADV_MAX_TID; i++) { 3400 if ((chip_scsi_id == i) || 3401 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0)) { 3402 continue; 3403 } 3404 3405 seq_printf(m, " %X:%c", 3406 i, 3407 (sdtr_able & ADV_TID_TO_TIDMASK(i)) ? 'Y' : 'N'); 3408 } 3409 seq_putc(m, '\n'); 3410 3411 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, sdtr_done); 3412 for (i = 0; i <= ADV_MAX_TID; i++) { 3413 3414 AdvReadWordLram(iop_base, 3415 ASC_MC_DEVICE_HSHK_CFG_TABLE + (2 * i), 3416 lramword); 3417 lramword &= ~0x8000; 3418 3419 if ((chip_scsi_id == i) || 3420 ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(i)) == 0) || 3421 ((sdtr_able & ADV_TID_TO_TIDMASK(i)) == 0)) { 3422 continue; 3423 } 3424 3425 seq_printf(m, " %X:", i); 3426 3427 if ((lramword & 0x1F) == 0) { /* Check for REQ/ACK Offset 0. */ 3428 seq_puts(m, " Asynchronous"); 3429 } else { 3430 seq_puts(m, " Transfer Period Factor: "); 3431 3432 if ((lramword & 0x1F00) == 0x1100) { /* 80 Mhz */ 3433 seq_puts(m, "9 (80.0 Mhz),"); 3434 } else if ((lramword & 0x1F00) == 0x1000) { /* 40 Mhz */ 3435 seq_puts(m, "10 (40.0 Mhz),"); 3436 } else { /* 20 Mhz or below. */ 3437 3438 period = (((lramword >> 8) * 25) + 50) / 4; 3439 3440 if (period == 0) { /* Should never happen. */ 3441 seq_printf(m, "%d (? Mhz), ", period); 3442 } else { 3443 seq_printf(m, 3444 "%d (%d.%d Mhz),", 3445 period, 250 / period, 3446 ASC_TENTHS(250, period)); 3447 } 3448 } 3449 3450 seq_printf(m, " REQ/ACK Offset: %d", 3451 lramword & 0x1F); 3452 } 3453 3454 if ((sdtr_done & ADV_TID_TO_TIDMASK(i)) == 0) { 3455 seq_puts(m, "*\n"); 3456 renegotiate = 1; 3457 } else { 3458 seq_putc(m, '\n'); 3459 } 3460 } 3461 3462 if (renegotiate) { 3463 seq_puts(m, " * = Re-negotiation pending before next command.\n"); 3464 } 3465 } 3466 3467 #ifdef ADVANSYS_STATS 3468 /* 3469 * asc_prt_board_stats() 3470 */ asc_prt_board_stats(struct seq_file * m,struct Scsi_Host * shost)3471 static void asc_prt_board_stats(struct seq_file *m, struct Scsi_Host *shost) 3472 { 3473 struct asc_board *boardp = shost_priv(shost); 3474 struct asc_stats *s = &boardp->asc_stats; 3475 3476 seq_printf(m, 3477 "\nLinux Driver Statistics for AdvanSys SCSI Host %d:\n", 3478 shost->host_no); 3479 3480 seq_printf(m, 3481 " queuecommand %u, reset %u, biosparam %u, interrupt %u\n", 3482 s->queuecommand, s->reset, s->biosparam, 3483 s->interrupt); 3484 3485 seq_printf(m, 3486 " callback %u, done %u, build_error %u, build_noreq %u, build_nosg %u\n", 3487 s->callback, s->done, s->build_error, 3488 s->adv_build_noreq, s->adv_build_nosg); 3489 3490 seq_printf(m, 3491 " exe_noerror %u, exe_busy %u, exe_error %u, exe_unknown %u\n", 3492 s->exe_noerror, s->exe_busy, s->exe_error, 3493 s->exe_unknown); 3494 3495 /* 3496 * Display data transfer statistics. 3497 */ 3498 if (s->xfer_cnt > 0) { 3499 seq_printf(m, " xfer_cnt %u, xfer_elem %u, ", 3500 s->xfer_cnt, s->xfer_elem); 3501 3502 seq_printf(m, "xfer_bytes %u.%01u kb\n", 3503 s->xfer_sect / 2, ASC_TENTHS(s->xfer_sect, 2)); 3504 3505 /* Scatter gather transfer statistics */ 3506 seq_printf(m, " avg_num_elem %u.%01u, ", 3507 s->xfer_elem / s->xfer_cnt, 3508 ASC_TENTHS(s->xfer_elem, s->xfer_cnt)); 3509 3510 seq_printf(m, "avg_elem_size %u.%01u kb, ", 3511 (s->xfer_sect / 2) / s->xfer_elem, 3512 ASC_TENTHS((s->xfer_sect / 2), s->xfer_elem)); 3513 3514 seq_printf(m, "avg_xfer_size %u.%01u kb\n", 3515 (s->xfer_sect / 2) / s->xfer_cnt, 3516 ASC_TENTHS((s->xfer_sect / 2), s->xfer_cnt)); 3517 } 3518 } 3519 #endif /* ADVANSYS_STATS */ 3520 3521 /* 3522 * advansys_show_info() - /proc/scsi/advansys/{0,1,2,3,...} 3523 * 3524 * m: seq_file to print into 3525 * shost: Scsi_Host 3526 * 3527 * Return the number of bytes read from or written to a 3528 * /proc/scsi/advansys/[0...] file. 3529 */ 3530 static int advansys_show_info(struct seq_file * m,struct Scsi_Host * shost)3531 advansys_show_info(struct seq_file *m, struct Scsi_Host *shost) 3532 { 3533 struct asc_board *boardp = shost_priv(shost); 3534 3535 ASC_DBG(1, "begin\n"); 3536 3537 /* 3538 * User read of /proc/scsi/advansys/[0...] file. 3539 */ 3540 3541 /* 3542 * Get board configuration information. 3543 * 3544 * advansys_info() returns the board string from its own static buffer. 3545 */ 3546 /* Copy board information. */ 3547 seq_printf(m, "%s\n", (char *)advansys_info(shost)); 3548 /* 3549 * Display Wide Board BIOS Information. 3550 */ 3551 if (!ASC_NARROW_BOARD(boardp)) 3552 asc_prt_adv_bios(m, shost); 3553 3554 /* 3555 * Display driver information for each device attached to the board. 3556 */ 3557 asc_prt_board_devices(m, shost); 3558 3559 /* 3560 * Display EEPROM configuration for the board. 3561 */ 3562 if (ASC_NARROW_BOARD(boardp)) 3563 asc_prt_asc_board_eeprom(m, shost); 3564 else 3565 asc_prt_adv_board_eeprom(m, shost); 3566 3567 /* 3568 * Display driver configuration and information for the board. 3569 */ 3570 asc_prt_driver_conf(m, shost); 3571 3572 #ifdef ADVANSYS_STATS 3573 /* 3574 * Display driver statistics for the board. 3575 */ 3576 asc_prt_board_stats(m, shost); 3577 #endif /* ADVANSYS_STATS */ 3578 3579 /* 3580 * Display Asc Library dynamic configuration information 3581 * for the board. 3582 */ 3583 if (ASC_NARROW_BOARD(boardp)) 3584 asc_prt_asc_board_info(m, shost); 3585 else 3586 asc_prt_adv_board_info(m, shost); 3587 return 0; 3588 } 3589 #endif /* CONFIG_PROC_FS */ 3590 asc_scsi_done(struct scsi_cmnd * scp)3591 static void asc_scsi_done(struct scsi_cmnd *scp) 3592 { 3593 scsi_dma_unmap(scp); 3594 ASC_STATS(scp->device->host, done); 3595 scp->scsi_done(scp); 3596 } 3597 AscSetBank(PortAddr iop_base,uchar bank)3598 static void AscSetBank(PortAddr iop_base, uchar bank) 3599 { 3600 uchar val; 3601 3602 val = AscGetChipControl(iop_base) & 3603 (~ 3604 (CC_SINGLE_STEP | CC_TEST | CC_DIAG | CC_SCSI_RESET | 3605 CC_CHIP_RESET)); 3606 if (bank == 1) { 3607 val |= CC_BANK_ONE; 3608 } else if (bank == 2) { 3609 val |= CC_DIAG | CC_BANK_ONE; 3610 } else { 3611 val &= ~CC_BANK_ONE; 3612 } 3613 AscSetChipControl(iop_base, val); 3614 } 3615 AscSetChipIH(PortAddr iop_base,ushort ins_code)3616 static void AscSetChipIH(PortAddr iop_base, ushort ins_code) 3617 { 3618 AscSetBank(iop_base, 1); 3619 AscWriteChipIH(iop_base, ins_code); 3620 AscSetBank(iop_base, 0); 3621 } 3622 AscStartChip(PortAddr iop_base)3623 static int AscStartChip(PortAddr iop_base) 3624 { 3625 AscSetChipControl(iop_base, 0); 3626 if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { 3627 return (0); 3628 } 3629 return (1); 3630 } 3631 AscStopChip(PortAddr iop_base)3632 static bool AscStopChip(PortAddr iop_base) 3633 { 3634 uchar cc_val; 3635 3636 cc_val = 3637 AscGetChipControl(iop_base) & 3638 (~(CC_SINGLE_STEP | CC_TEST | CC_DIAG)); 3639 AscSetChipControl(iop_base, (uchar)(cc_val | CC_HALT)); 3640 AscSetChipIH(iop_base, INS_HALT); 3641 AscSetChipIH(iop_base, INS_RFLAG_WTM); 3642 if ((AscGetChipStatus(iop_base) & CSW_HALTED) == 0) { 3643 return false; 3644 } 3645 return true; 3646 } 3647 AscIsChipHalted(PortAddr iop_base)3648 static bool AscIsChipHalted(PortAddr iop_base) 3649 { 3650 if ((AscGetChipStatus(iop_base) & CSW_HALTED) != 0) { 3651 if ((AscGetChipControl(iop_base) & CC_HALT) != 0) { 3652 return true; 3653 } 3654 } 3655 return false; 3656 } 3657 AscResetChipAndScsiBus(ASC_DVC_VAR * asc_dvc)3658 static bool AscResetChipAndScsiBus(ASC_DVC_VAR *asc_dvc) 3659 { 3660 PortAddr iop_base; 3661 int i = 10; 3662 3663 iop_base = asc_dvc->iop_base; 3664 while ((AscGetChipStatus(iop_base) & CSW_SCSI_RESET_ACTIVE) 3665 && (i-- > 0)) { 3666 mdelay(100); 3667 } 3668 AscStopChip(iop_base); 3669 AscSetChipControl(iop_base, CC_CHIP_RESET | CC_SCSI_RESET | CC_HALT); 3670 udelay(60); 3671 AscSetChipIH(iop_base, INS_RFLAG_WTM); 3672 AscSetChipIH(iop_base, INS_HALT); 3673 AscSetChipControl(iop_base, CC_CHIP_RESET | CC_HALT); 3674 AscSetChipControl(iop_base, CC_HALT); 3675 mdelay(200); 3676 AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); 3677 AscSetChipStatus(iop_base, 0); 3678 return (AscIsChipHalted(iop_base)); 3679 } 3680 AscFindSignature(PortAddr iop_base)3681 static int AscFindSignature(PortAddr iop_base) 3682 { 3683 ushort sig_word; 3684 3685 ASC_DBG(1, "AscGetChipSignatureByte(0x%x) 0x%x\n", 3686 iop_base, AscGetChipSignatureByte(iop_base)); 3687 if (AscGetChipSignatureByte(iop_base) == (uchar)ASC_1000_ID1B) { 3688 ASC_DBG(1, "AscGetChipSignatureWord(0x%x) 0x%x\n", 3689 iop_base, AscGetChipSignatureWord(iop_base)); 3690 sig_word = AscGetChipSignatureWord(iop_base); 3691 if ((sig_word == (ushort)ASC_1000_ID0W) || 3692 (sig_word == (ushort)ASC_1000_ID0W_FIX)) { 3693 return (1); 3694 } 3695 } 3696 return (0); 3697 } 3698 AscEnableInterrupt(PortAddr iop_base)3699 static void AscEnableInterrupt(PortAddr iop_base) 3700 { 3701 ushort cfg; 3702 3703 cfg = AscGetChipCfgLsw(iop_base); 3704 AscSetChipCfgLsw(iop_base, cfg | ASC_CFG0_HOST_INT_ON); 3705 } 3706 AscDisableInterrupt(PortAddr iop_base)3707 static void AscDisableInterrupt(PortAddr iop_base) 3708 { 3709 ushort cfg; 3710 3711 cfg = AscGetChipCfgLsw(iop_base); 3712 AscSetChipCfgLsw(iop_base, cfg & (~ASC_CFG0_HOST_INT_ON)); 3713 } 3714 AscReadLramByte(PortAddr iop_base,ushort addr)3715 static uchar AscReadLramByte(PortAddr iop_base, ushort addr) 3716 { 3717 unsigned char byte_data; 3718 unsigned short word_data; 3719 3720 if (isodd_word(addr)) { 3721 AscSetChipLramAddr(iop_base, addr - 1); 3722 word_data = AscGetChipLramData(iop_base); 3723 byte_data = (word_data >> 8) & 0xFF; 3724 } else { 3725 AscSetChipLramAddr(iop_base, addr); 3726 word_data = AscGetChipLramData(iop_base); 3727 byte_data = word_data & 0xFF; 3728 } 3729 return byte_data; 3730 } 3731 AscReadLramWord(PortAddr iop_base,ushort addr)3732 static ushort AscReadLramWord(PortAddr iop_base, ushort addr) 3733 { 3734 ushort word_data; 3735 3736 AscSetChipLramAddr(iop_base, addr); 3737 word_data = AscGetChipLramData(iop_base); 3738 return (word_data); 3739 } 3740 3741 static void AscMemWordSetLram(PortAddr iop_base,ushort s_addr,ushort set_wval,int words)3742 AscMemWordSetLram(PortAddr iop_base, ushort s_addr, ushort set_wval, int words) 3743 { 3744 int i; 3745 3746 AscSetChipLramAddr(iop_base, s_addr); 3747 for (i = 0; i < words; i++) { 3748 AscSetChipLramData(iop_base, set_wval); 3749 } 3750 } 3751 AscWriteLramWord(PortAddr iop_base,ushort addr,ushort word_val)3752 static void AscWriteLramWord(PortAddr iop_base, ushort addr, ushort word_val) 3753 { 3754 AscSetChipLramAddr(iop_base, addr); 3755 AscSetChipLramData(iop_base, word_val); 3756 } 3757 AscWriteLramByte(PortAddr iop_base,ushort addr,uchar byte_val)3758 static void AscWriteLramByte(PortAddr iop_base, ushort addr, uchar byte_val) 3759 { 3760 ushort word_data; 3761 3762 if (isodd_word(addr)) { 3763 addr--; 3764 word_data = AscReadLramWord(iop_base, addr); 3765 word_data &= 0x00FF; 3766 word_data |= (((ushort)byte_val << 8) & 0xFF00); 3767 } else { 3768 word_data = AscReadLramWord(iop_base, addr); 3769 word_data &= 0xFF00; 3770 word_data |= ((ushort)byte_val & 0x00FF); 3771 } 3772 AscWriteLramWord(iop_base, addr, word_data); 3773 } 3774 3775 /* 3776 * Copy 2 bytes to LRAM. 3777 * 3778 * The source data is assumed to be in little-endian order in memory 3779 * and is maintained in little-endian order when written to LRAM. 3780 */ 3781 static void AscMemWordCopyPtrToLram(PortAddr iop_base,ushort s_addr,const uchar * s_buffer,int words)3782 AscMemWordCopyPtrToLram(PortAddr iop_base, ushort s_addr, 3783 const uchar *s_buffer, int words) 3784 { 3785 int i; 3786 3787 AscSetChipLramAddr(iop_base, s_addr); 3788 for (i = 0; i < 2 * words; i += 2) { 3789 /* 3790 * On a little-endian system the second argument below 3791 * produces a little-endian ushort which is written to 3792 * LRAM in little-endian order. On a big-endian system 3793 * the second argument produces a big-endian ushort which 3794 * is "transparently" byte-swapped by outpw() and written 3795 * in little-endian order to LRAM. 3796 */ 3797 outpw(iop_base + IOP_RAM_DATA, 3798 ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); 3799 } 3800 } 3801 3802 /* 3803 * Copy 4 bytes to LRAM. 3804 * 3805 * The source data is assumed to be in little-endian order in memory 3806 * and is maintained in little-endian order when written to LRAM. 3807 */ 3808 static void AscMemDWordCopyPtrToLram(PortAddr iop_base,ushort s_addr,uchar * s_buffer,int dwords)3809 AscMemDWordCopyPtrToLram(PortAddr iop_base, 3810 ushort s_addr, uchar *s_buffer, int dwords) 3811 { 3812 int i; 3813 3814 AscSetChipLramAddr(iop_base, s_addr); 3815 for (i = 0; i < 4 * dwords; i += 4) { 3816 outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 1] << 8) | s_buffer[i]); /* LSW */ 3817 outpw(iop_base + IOP_RAM_DATA, ((ushort)s_buffer[i + 3] << 8) | s_buffer[i + 2]); /* MSW */ 3818 } 3819 } 3820 3821 /* 3822 * Copy 2 bytes from LRAM. 3823 * 3824 * The source data is assumed to be in little-endian order in LRAM 3825 * and is maintained in little-endian order when written to memory. 3826 */ 3827 static void AscMemWordCopyPtrFromLram(PortAddr iop_base,ushort s_addr,uchar * d_buffer,int words)3828 AscMemWordCopyPtrFromLram(PortAddr iop_base, 3829 ushort s_addr, uchar *d_buffer, int words) 3830 { 3831 int i; 3832 ushort word; 3833 3834 AscSetChipLramAddr(iop_base, s_addr); 3835 for (i = 0; i < 2 * words; i += 2) { 3836 word = inpw(iop_base + IOP_RAM_DATA); 3837 d_buffer[i] = word & 0xff; 3838 d_buffer[i + 1] = (word >> 8) & 0xff; 3839 } 3840 } 3841 AscMemSumLramWord(PortAddr iop_base,ushort s_addr,int words)3842 static u32 AscMemSumLramWord(PortAddr iop_base, ushort s_addr, int words) 3843 { 3844 u32 sum = 0; 3845 int i; 3846 3847 for (i = 0; i < words; i++, s_addr += 2) { 3848 sum += AscReadLramWord(iop_base, s_addr); 3849 } 3850 return (sum); 3851 } 3852 AscInitLram(ASC_DVC_VAR * asc_dvc)3853 static void AscInitLram(ASC_DVC_VAR *asc_dvc) 3854 { 3855 uchar i; 3856 ushort s_addr; 3857 PortAddr iop_base; 3858 3859 iop_base = asc_dvc->iop_base; 3860 AscMemWordSetLram(iop_base, ASC_QADR_BEG, 0, 3861 (ushort)(((int)(asc_dvc->max_total_qng + 2 + 1) * 3862 64) >> 1)); 3863 i = ASC_MIN_ACTIVE_QNO; 3864 s_addr = ASC_QADR_BEG + ASC_QBLK_SIZE; 3865 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), 3866 (uchar)(i + 1)); 3867 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), 3868 (uchar)(asc_dvc->max_total_qng)); 3869 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), 3870 (uchar)i); 3871 i++; 3872 s_addr += ASC_QBLK_SIZE; 3873 for (; i < asc_dvc->max_total_qng; i++, s_addr += ASC_QBLK_SIZE) { 3874 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), 3875 (uchar)(i + 1)); 3876 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), 3877 (uchar)(i - 1)); 3878 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), 3879 (uchar)i); 3880 } 3881 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_FWD), 3882 (uchar)ASC_QLINK_END); 3883 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_BWD), 3884 (uchar)(asc_dvc->max_total_qng - 1)); 3885 AscWriteLramByte(iop_base, (ushort)(s_addr + ASC_SCSIQ_B_QNO), 3886 (uchar)asc_dvc->max_total_qng); 3887 i++; 3888 s_addr += ASC_QBLK_SIZE; 3889 for (; i <= (uchar)(asc_dvc->max_total_qng + 3); 3890 i++, s_addr += ASC_QBLK_SIZE) { 3891 AscWriteLramByte(iop_base, 3892 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_FWD), i); 3893 AscWriteLramByte(iop_base, 3894 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_BWD), i); 3895 AscWriteLramByte(iop_base, 3896 (ushort)(s_addr + (ushort)ASC_SCSIQ_B_QNO), i); 3897 } 3898 } 3899 3900 static u32 AscLoadMicroCode(PortAddr iop_base,ushort s_addr,const uchar * mcode_buf,ushort mcode_size)3901 AscLoadMicroCode(PortAddr iop_base, ushort s_addr, 3902 const uchar *mcode_buf, ushort mcode_size) 3903 { 3904 u32 chksum; 3905 ushort mcode_word_size; 3906 ushort mcode_chksum; 3907 3908 /* Write the microcode buffer starting at LRAM address 0. */ 3909 mcode_word_size = (ushort)(mcode_size >> 1); 3910 AscMemWordSetLram(iop_base, s_addr, 0, mcode_word_size); 3911 AscMemWordCopyPtrToLram(iop_base, s_addr, mcode_buf, mcode_word_size); 3912 3913 chksum = AscMemSumLramWord(iop_base, s_addr, mcode_word_size); 3914 ASC_DBG(1, "chksum 0x%lx\n", (ulong)chksum); 3915 mcode_chksum = (ushort)AscMemSumLramWord(iop_base, 3916 (ushort)ASC_CODE_SEC_BEG, 3917 (ushort)((mcode_size - 3918 s_addr - (ushort) 3919 ASC_CODE_SEC_BEG) / 3920 2)); 3921 ASC_DBG(1, "mcode_chksum 0x%lx\n", (ulong)mcode_chksum); 3922 AscWriteLramWord(iop_base, ASCV_MCODE_CHKSUM_W, mcode_chksum); 3923 AscWriteLramWord(iop_base, ASCV_MCODE_SIZE_W, mcode_size); 3924 return chksum; 3925 } 3926 AscInitQLinkVar(ASC_DVC_VAR * asc_dvc)3927 static void AscInitQLinkVar(ASC_DVC_VAR *asc_dvc) 3928 { 3929 PortAddr iop_base; 3930 int i; 3931 ushort lram_addr; 3932 3933 iop_base = asc_dvc->iop_base; 3934 AscPutRiscVarFreeQHead(iop_base, 1); 3935 AscPutRiscVarDoneQTail(iop_base, asc_dvc->max_total_qng); 3936 AscPutVarFreeQHead(iop_base, 1); 3937 AscPutVarDoneQTail(iop_base, asc_dvc->max_total_qng); 3938 AscWriteLramByte(iop_base, ASCV_BUSY_QHEAD_B, 3939 (uchar)((int)asc_dvc->max_total_qng + 1)); 3940 AscWriteLramByte(iop_base, ASCV_DISC1_QHEAD_B, 3941 (uchar)((int)asc_dvc->max_total_qng + 2)); 3942 AscWriteLramByte(iop_base, (ushort)ASCV_TOTAL_READY_Q_B, 3943 asc_dvc->max_total_qng); 3944 AscWriteLramWord(iop_base, ASCV_ASCDVC_ERR_CODE_W, 0); 3945 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 3946 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 0); 3947 AscWriteLramByte(iop_base, ASCV_SCSIBUSY_B, 0); 3948 AscWriteLramByte(iop_base, ASCV_WTM_FLAG_B, 0); 3949 AscPutQDoneInProgress(iop_base, 0); 3950 lram_addr = ASC_QADR_BEG; 3951 for (i = 0; i < 32; i++, lram_addr += 2) { 3952 AscWriteLramWord(iop_base, lram_addr, 0); 3953 } 3954 } 3955 AscInitMicroCodeVar(ASC_DVC_VAR * asc_dvc)3956 static int AscInitMicroCodeVar(ASC_DVC_VAR *asc_dvc) 3957 { 3958 int i; 3959 int warn_code; 3960 PortAddr iop_base; 3961 __le32 phy_addr; 3962 __le32 phy_size; 3963 struct asc_board *board = asc_dvc_to_board(asc_dvc); 3964 3965 iop_base = asc_dvc->iop_base; 3966 warn_code = 0; 3967 for (i = 0; i <= ASC_MAX_TID; i++) { 3968 AscPutMCodeInitSDTRAtID(iop_base, i, 3969 asc_dvc->cfg->sdtr_period_offset[i]); 3970 } 3971 3972 AscInitQLinkVar(asc_dvc); 3973 AscWriteLramByte(iop_base, ASCV_DISC_ENABLE_B, 3974 asc_dvc->cfg->disc_enable); 3975 AscWriteLramByte(iop_base, ASCV_HOSTSCSI_ID_B, 3976 ASC_TID_TO_TARGET_ID(asc_dvc->cfg->chip_scsi_id)); 3977 3978 /* Ensure overrun buffer is aligned on an 8 byte boundary. */ 3979 BUG_ON((unsigned long)asc_dvc->overrun_buf & 7); 3980 asc_dvc->overrun_dma = dma_map_single(board->dev, asc_dvc->overrun_buf, 3981 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE); 3982 if (dma_mapping_error(board->dev, asc_dvc->overrun_dma)) { 3983 warn_code = -ENOMEM; 3984 goto err_dma_map; 3985 } 3986 phy_addr = cpu_to_le32(asc_dvc->overrun_dma); 3987 AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_PADDR_D, 3988 (uchar *)&phy_addr, 1); 3989 phy_size = cpu_to_le32(ASC_OVERRUN_BSIZE); 3990 AscMemDWordCopyPtrToLram(iop_base, ASCV_OVERRUN_BSIZE_D, 3991 (uchar *)&phy_size, 1); 3992 3993 asc_dvc->cfg->mcode_date = 3994 AscReadLramWord(iop_base, (ushort)ASCV_MC_DATE_W); 3995 asc_dvc->cfg->mcode_version = 3996 AscReadLramWord(iop_base, (ushort)ASCV_MC_VER_W); 3997 3998 AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); 3999 if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { 4000 asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; 4001 warn_code = -EINVAL; 4002 goto err_mcode_start; 4003 } 4004 if (AscStartChip(iop_base) != 1) { 4005 asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; 4006 warn_code = -EIO; 4007 goto err_mcode_start; 4008 } 4009 4010 return warn_code; 4011 4012 err_mcode_start: 4013 dma_unmap_single(board->dev, asc_dvc->overrun_dma, 4014 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE); 4015 err_dma_map: 4016 asc_dvc->overrun_dma = 0; 4017 return warn_code; 4018 } 4019 AscInitAsc1000Driver(ASC_DVC_VAR * asc_dvc)4020 static int AscInitAsc1000Driver(ASC_DVC_VAR *asc_dvc) 4021 { 4022 const struct firmware *fw; 4023 const char fwname[] = "advansys/mcode.bin"; 4024 int err; 4025 unsigned long chksum; 4026 int warn_code; 4027 PortAddr iop_base; 4028 4029 iop_base = asc_dvc->iop_base; 4030 warn_code = 0; 4031 if ((asc_dvc->dvc_cntl & ASC_CNTL_RESET_SCSI) && 4032 !(asc_dvc->init_state & ASC_INIT_RESET_SCSI_DONE)) { 4033 AscResetChipAndScsiBus(asc_dvc); 4034 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ 4035 } 4036 asc_dvc->init_state |= ASC_INIT_STATE_BEG_LOAD_MC; 4037 if (asc_dvc->err_code != 0) 4038 return ASC_ERROR; 4039 if (!AscFindSignature(asc_dvc->iop_base)) { 4040 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; 4041 return warn_code; 4042 } 4043 AscDisableInterrupt(iop_base); 4044 AscInitLram(asc_dvc); 4045 4046 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev); 4047 if (err) { 4048 printk(KERN_ERR "Failed to load image \"%s\" err %d\n", 4049 fwname, err); 4050 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; 4051 return err; 4052 } 4053 if (fw->size < 4) { 4054 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", 4055 fw->size, fwname); 4056 release_firmware(fw); 4057 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; 4058 return -EINVAL; 4059 } 4060 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) | 4061 (fw->data[1] << 8) | fw->data[0]; 4062 ASC_DBG(1, "_asc_mcode_chksum 0x%lx\n", (ulong)chksum); 4063 if (AscLoadMicroCode(iop_base, 0, &fw->data[4], 4064 fw->size - 4) != chksum) { 4065 asc_dvc->err_code |= ASC_IERR_MCODE_CHKSUM; 4066 release_firmware(fw); 4067 return warn_code; 4068 } 4069 release_firmware(fw); 4070 warn_code |= AscInitMicroCodeVar(asc_dvc); 4071 if (!asc_dvc->overrun_dma) 4072 return warn_code; 4073 asc_dvc->init_state |= ASC_INIT_STATE_END_LOAD_MC; 4074 AscEnableInterrupt(iop_base); 4075 return warn_code; 4076 } 4077 4078 /* 4079 * Load the Microcode 4080 * 4081 * Write the microcode image to RISC memory starting at address 0. 4082 * 4083 * The microcode is stored compressed in the following format: 4084 * 4085 * 254 word (508 byte) table indexed by byte code followed 4086 * by the following byte codes: 4087 * 4088 * 1-Byte Code: 4089 * 00: Emit word 0 in table. 4090 * 01: Emit word 1 in table. 4091 * . 4092 * FD: Emit word 253 in table. 4093 * 4094 * Multi-Byte Code: 4095 * FE WW WW: (3 byte code) Word to emit is the next word WW WW. 4096 * FF BB WW WW: (4 byte code) Emit BB count times next word WW WW. 4097 * 4098 * Returns 0 or an error if the checksum doesn't match 4099 */ AdvLoadMicrocode(AdvPortAddr iop_base,const unsigned char * buf,int size,int memsize,int chksum)4100 static int AdvLoadMicrocode(AdvPortAddr iop_base, const unsigned char *buf, 4101 int size, int memsize, int chksum) 4102 { 4103 int i, j, end, len = 0; 4104 u32 sum; 4105 4106 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); 4107 4108 for (i = 253 * 2; i < size; i++) { 4109 if (buf[i] == 0xff) { 4110 unsigned short word = (buf[i + 3] << 8) | buf[i + 2]; 4111 for (j = 0; j < buf[i + 1]; j++) { 4112 AdvWriteWordAutoIncLram(iop_base, word); 4113 len += 2; 4114 } 4115 i += 3; 4116 } else if (buf[i] == 0xfe) { 4117 unsigned short word = (buf[i + 2] << 8) | buf[i + 1]; 4118 AdvWriteWordAutoIncLram(iop_base, word); 4119 i += 2; 4120 len += 2; 4121 } else { 4122 unsigned int off = buf[i] * 2; 4123 unsigned short word = (buf[off + 1] << 8) | buf[off]; 4124 AdvWriteWordAutoIncLram(iop_base, word); 4125 len += 2; 4126 } 4127 } 4128 4129 end = len; 4130 4131 while (len < memsize) { 4132 AdvWriteWordAutoIncLram(iop_base, 0); 4133 len += 2; 4134 } 4135 4136 /* Verify the microcode checksum. */ 4137 sum = 0; 4138 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, 0); 4139 4140 for (len = 0; len < end; len += 2) { 4141 sum += AdvReadWordAutoIncLram(iop_base); 4142 } 4143 4144 if (sum != chksum) 4145 return ASC_IERR_MCODE_CHKSUM; 4146 4147 return 0; 4148 } 4149 AdvBuildCarrierFreelist(struct adv_dvc_var * adv_dvc)4150 static void AdvBuildCarrierFreelist(struct adv_dvc_var *adv_dvc) 4151 { 4152 off_t carr_offset = 0, next_offset; 4153 dma_addr_t carr_paddr; 4154 int carr_num = ADV_CARRIER_BUFSIZE / sizeof(ADV_CARR_T), i; 4155 4156 for (i = 0; i < carr_num; i++) { 4157 carr_offset = i * sizeof(ADV_CARR_T); 4158 /* Get physical address of the carrier 'carrp'. */ 4159 carr_paddr = adv_dvc->carrier_addr + carr_offset; 4160 4161 adv_dvc->carrier[i].carr_pa = cpu_to_le32(carr_paddr); 4162 adv_dvc->carrier[i].carr_va = cpu_to_le32(carr_offset); 4163 adv_dvc->carrier[i].areq_vpa = 0; 4164 next_offset = carr_offset + sizeof(ADV_CARR_T); 4165 if (i == carr_num) 4166 next_offset = ~0; 4167 adv_dvc->carrier[i].next_vpa = cpu_to_le32(next_offset); 4168 } 4169 /* 4170 * We cannot have a carrier with 'carr_va' of '0', as 4171 * a reference to this carrier would be interpreted as 4172 * list termination. 4173 * So start at carrier 1 with the freelist. 4174 */ 4175 adv_dvc->carr_freelist = &adv_dvc->carrier[1]; 4176 } 4177 adv_get_carrier(struct adv_dvc_var * adv_dvc,u32 offset)4178 static ADV_CARR_T *adv_get_carrier(struct adv_dvc_var *adv_dvc, u32 offset) 4179 { 4180 int index; 4181 4182 BUG_ON(offset > ADV_CARRIER_BUFSIZE); 4183 4184 index = offset / sizeof(ADV_CARR_T); 4185 return &adv_dvc->carrier[index]; 4186 } 4187 adv_get_next_carrier(struct adv_dvc_var * adv_dvc)4188 static ADV_CARR_T *adv_get_next_carrier(struct adv_dvc_var *adv_dvc) 4189 { 4190 ADV_CARR_T *carrp = adv_dvc->carr_freelist; 4191 u32 next_vpa = le32_to_cpu(carrp->next_vpa); 4192 4193 if (next_vpa == 0 || next_vpa == ~0) { 4194 ASC_DBG(1, "invalid vpa offset 0x%x\n", next_vpa); 4195 return NULL; 4196 } 4197 4198 adv_dvc->carr_freelist = adv_get_carrier(adv_dvc, next_vpa); 4199 /* 4200 * insert stopper carrier to terminate list 4201 */ 4202 carrp->next_vpa = cpu_to_le32(ADV_CQ_STOPPER); 4203 4204 return carrp; 4205 } 4206 4207 /* 4208 * 'offset' is the index in the request pointer array 4209 */ adv_get_reqp(struct adv_dvc_var * adv_dvc,u32 offset)4210 static adv_req_t * adv_get_reqp(struct adv_dvc_var *adv_dvc, u32 offset) 4211 { 4212 struct asc_board *boardp = adv_dvc->drv_ptr; 4213 4214 BUG_ON(offset > adv_dvc->max_host_qng); 4215 return &boardp->adv_reqp[offset]; 4216 } 4217 4218 /* 4219 * Send an idle command to the chip and wait for completion. 4220 * 4221 * Command completion is polled for once per microsecond. 4222 * 4223 * The function can be called from anywhere including an interrupt handler. 4224 * But the function is not re-entrant, so it uses the DvcEnter/LeaveCritical() 4225 * functions to prevent reentrancy. 4226 * 4227 * Return Values: 4228 * ADV_TRUE - command completed successfully 4229 * ADV_FALSE - command failed 4230 * ADV_ERROR - command timed out 4231 */ 4232 static int AdvSendIdleCmd(ADV_DVC_VAR * asc_dvc,ushort idle_cmd,u32 idle_cmd_parameter)4233 AdvSendIdleCmd(ADV_DVC_VAR *asc_dvc, 4234 ushort idle_cmd, u32 idle_cmd_parameter) 4235 { 4236 int result, i, j; 4237 AdvPortAddr iop_base; 4238 4239 iop_base = asc_dvc->iop_base; 4240 4241 /* 4242 * Clear the idle command status which is set by the microcode 4243 * to a non-zero value to indicate when the command is completed. 4244 * The non-zero result is one of the IDLE_CMD_STATUS_* values 4245 */ 4246 AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, (ushort)0); 4247 4248 /* 4249 * Write the idle command value after the idle command parameter 4250 * has been written to avoid a race condition. If the order is not 4251 * followed, the microcode may process the idle command before the 4252 * parameters have been written to LRAM. 4253 */ 4254 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IDLE_CMD_PARAMETER, 4255 cpu_to_le32(idle_cmd_parameter)); 4256 AdvWriteWordLram(iop_base, ASC_MC_IDLE_CMD, idle_cmd); 4257 4258 /* 4259 * Tickle the RISC to tell it to process the idle command. 4260 */ 4261 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_B); 4262 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { 4263 /* 4264 * Clear the tickle value. In the ASC-3550 the RISC flag 4265 * command 'clr_tickle_b' does not work unless the host 4266 * value is cleared. 4267 */ 4268 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_NOP); 4269 } 4270 4271 /* Wait for up to 100 millisecond for the idle command to timeout. */ 4272 for (i = 0; i < SCSI_WAIT_100_MSEC; i++) { 4273 /* Poll once each microsecond for command completion. */ 4274 for (j = 0; j < SCSI_US_PER_MSEC; j++) { 4275 AdvReadWordLram(iop_base, ASC_MC_IDLE_CMD_STATUS, 4276 result); 4277 if (result != 0) 4278 return result; 4279 udelay(1); 4280 } 4281 } 4282 4283 BUG(); /* The idle command should never timeout. */ 4284 return ADV_ERROR; 4285 } 4286 4287 /* 4288 * Reset SCSI Bus and purge all outstanding requests. 4289 * 4290 * Return Value: 4291 * ADV_TRUE(1) - All requests are purged and SCSI Bus is reset. 4292 * ADV_FALSE(0) - Microcode command failed. 4293 * ADV_ERROR(-1) - Microcode command timed-out. Microcode or IC 4294 * may be hung which requires driver recovery. 4295 */ AdvResetSB(ADV_DVC_VAR * asc_dvc)4296 static int AdvResetSB(ADV_DVC_VAR *asc_dvc) 4297 { 4298 int status; 4299 4300 /* 4301 * Send the SCSI Bus Reset idle start idle command which asserts 4302 * the SCSI Bus Reset signal. 4303 */ 4304 status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_START, 0L); 4305 if (status != ADV_TRUE) { 4306 return status; 4307 } 4308 4309 /* 4310 * Delay for the specified SCSI Bus Reset hold time. 4311 * 4312 * The hold time delay is done on the host because the RISC has no 4313 * microsecond accurate timer. 4314 */ 4315 udelay(ASC_SCSI_RESET_HOLD_TIME_US); 4316 4317 /* 4318 * Send the SCSI Bus Reset end idle command which de-asserts 4319 * the SCSI Bus Reset signal and purges any pending requests. 4320 */ 4321 status = AdvSendIdleCmd(asc_dvc, (ushort)IDLE_CMD_SCSI_RESET_END, 0L); 4322 if (status != ADV_TRUE) { 4323 return status; 4324 } 4325 4326 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ 4327 4328 return status; 4329 } 4330 4331 /* 4332 * Initialize the ASC-3550. 4333 * 4334 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. 4335 * 4336 * For a non-fatal error return a warning code. If there are no warnings 4337 * then 0 is returned. 4338 * 4339 * Needed after initialization for error recovery. 4340 */ AdvInitAsc3550Driver(ADV_DVC_VAR * asc_dvc)4341 static int AdvInitAsc3550Driver(ADV_DVC_VAR *asc_dvc) 4342 { 4343 const struct firmware *fw; 4344 const char fwname[] = "advansys/3550.bin"; 4345 AdvPortAddr iop_base; 4346 ushort warn_code; 4347 int begin_addr; 4348 int end_addr; 4349 ushort code_sum; 4350 int word; 4351 int i; 4352 int err; 4353 unsigned long chksum; 4354 ushort scsi_cfg1; 4355 uchar tid; 4356 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */ 4357 ushort wdtr_able = 0, sdtr_able, tagqng_able; 4358 uchar max_cmd[ADV_MAX_TID + 1]; 4359 4360 /* If there is already an error, don't continue. */ 4361 if (asc_dvc->err_code != 0) 4362 return ADV_ERROR; 4363 4364 /* 4365 * The caller must set 'chip_type' to ADV_CHIP_ASC3550. 4366 */ 4367 if (asc_dvc->chip_type != ADV_CHIP_ASC3550) { 4368 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE; 4369 return ADV_ERROR; 4370 } 4371 4372 warn_code = 0; 4373 iop_base = asc_dvc->iop_base; 4374 4375 /* 4376 * Save the RISC memory BIOS region before writing the microcode. 4377 * The BIOS may already be loaded and using its RISC LRAM region 4378 * so its region must be saved and restored. 4379 * 4380 * Note: This code makes the assumption, which is currently true, 4381 * that a chip reset does not clear RISC LRAM. 4382 */ 4383 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 4384 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 4385 bios_mem[i]); 4386 } 4387 4388 /* 4389 * Save current per TID negotiated values. 4390 */ 4391 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] == 0x55AA) { 4392 ushort bios_version, major, minor; 4393 4394 bios_version = 4395 bios_mem[(ASC_MC_BIOS_VERSION - ASC_MC_BIOSMEM) / 2]; 4396 major = (bios_version >> 12) & 0xF; 4397 minor = (bios_version >> 8) & 0xF; 4398 if (major < 3 || (major == 3 && minor == 1)) { 4399 /* BIOS 3.1 and earlier location of 'wdtr_able' variable. */ 4400 AdvReadWordLram(iop_base, 0x120, wdtr_able); 4401 } else { 4402 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 4403 } 4404 } 4405 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 4406 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 4407 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 4408 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, 4409 max_cmd[tid]); 4410 } 4411 4412 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev); 4413 if (err) { 4414 printk(KERN_ERR "Failed to load image \"%s\" err %d\n", 4415 fwname, err); 4416 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 4417 return err; 4418 } 4419 if (fw->size < 4) { 4420 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", 4421 fw->size, fwname); 4422 release_firmware(fw); 4423 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 4424 return -EINVAL; 4425 } 4426 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) | 4427 (fw->data[1] << 8) | fw->data[0]; 4428 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4], 4429 fw->size - 4, ADV_3550_MEMSIZE, 4430 chksum); 4431 release_firmware(fw); 4432 if (asc_dvc->err_code) 4433 return ADV_ERROR; 4434 4435 /* 4436 * Restore the RISC memory BIOS region. 4437 */ 4438 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 4439 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 4440 bios_mem[i]); 4441 } 4442 4443 /* 4444 * Calculate and write the microcode code checksum to the microcode 4445 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C). 4446 */ 4447 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr); 4448 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr); 4449 code_sum = 0; 4450 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr); 4451 for (word = begin_addr; word < end_addr; word += 2) { 4452 code_sum += AdvReadWordAutoIncLram(iop_base); 4453 } 4454 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum); 4455 4456 /* 4457 * Read and save microcode version and date. 4458 */ 4459 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE, 4460 asc_dvc->cfg->mcode_date); 4461 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM, 4462 asc_dvc->cfg->mcode_version); 4463 4464 /* 4465 * Set the chip type to indicate the ASC3550. 4466 */ 4467 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC3550); 4468 4469 /* 4470 * If the PCI Configuration Command Register "Parity Error Response 4471 * Control" Bit was clear (0), then set the microcode variable 4472 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 4473 * to ignore DMA parity errors. 4474 */ 4475 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) { 4476 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 4477 word |= CONTROL_FLAG_IGNORE_PERR; 4478 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 4479 } 4480 4481 /* 4482 * For ASC-3550, setting the START_CTL_EMFU [3:2] bits sets a FIFO 4483 * threshold of 128 bytes. This register is only accessible to the host. 4484 */ 4485 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0, 4486 START_CTL_EMFU | READ_CMD_MRM); 4487 4488 /* 4489 * Microcode operating variables for WDTR, SDTR, and command tag 4490 * queuing will be set in slave_configure() based on what a 4491 * device reports it is capable of in Inquiry byte 7. 4492 * 4493 * If SCSI Bus Resets have been disabled, then directly set 4494 * SDTR and WDTR from the EEPROM configuration. This will allow 4495 * the BIOS and warm boot to work without a SCSI bus hang on 4496 * the Inquiry caused by host and target mismatched DTR values. 4497 * Without the SCSI Bus Reset, before an Inquiry a device can't 4498 * be assumed to be in Asynchronous, Narrow mode. 4499 */ 4500 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) { 4501 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, 4502 asc_dvc->wdtr_able); 4503 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, 4504 asc_dvc->sdtr_able); 4505 } 4506 4507 /* 4508 * Set microcode operating variables for SDTR_SPEED1, SDTR_SPEED2, 4509 * SDTR_SPEED3, and SDTR_SPEED4 based on the ULTRA EEPROM per TID 4510 * bitmask. These values determine the maximum SDTR speed negotiated 4511 * with a device. 4512 * 4513 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2, 4514 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them 4515 * without determining here whether the device supports SDTR. 4516 * 4517 * 4-bit speed SDTR speed name 4518 * =========== =============== 4519 * 0000b (0x0) SDTR disabled 4520 * 0001b (0x1) 5 Mhz 4521 * 0010b (0x2) 10 Mhz 4522 * 0011b (0x3) 20 Mhz (Ultra) 4523 * 0100b (0x4) 40 Mhz (LVD/Ultra2) 4524 * 0101b (0x5) 80 Mhz (LVD2/Ultra3) 4525 * 0110b (0x6) Undefined 4526 * . 4527 * 1111b (0xF) Undefined 4528 */ 4529 word = 0; 4530 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 4531 if (ADV_TID_TO_TIDMASK(tid) & asc_dvc->ultra_able) { 4532 /* Set Ultra speed for TID 'tid'. */ 4533 word |= (0x3 << (4 * (tid % 4))); 4534 } else { 4535 /* Set Fast speed for TID 'tid'. */ 4536 word |= (0x2 << (4 * (tid % 4))); 4537 } 4538 if (tid == 3) { /* Check if done with sdtr_speed1. */ 4539 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, word); 4540 word = 0; 4541 } else if (tid == 7) { /* Check if done with sdtr_speed2. */ 4542 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, word); 4543 word = 0; 4544 } else if (tid == 11) { /* Check if done with sdtr_speed3. */ 4545 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, word); 4546 word = 0; 4547 } else if (tid == 15) { /* Check if done with sdtr_speed4. */ 4548 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, word); 4549 /* End of loop. */ 4550 } 4551 } 4552 4553 /* 4554 * Set microcode operating variable for the disconnect per TID bitmask. 4555 */ 4556 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE, 4557 asc_dvc->cfg->disc_enable); 4558 4559 /* 4560 * Set SCSI_CFG0 Microcode Default Value. 4561 * 4562 * The microcode will set the SCSI_CFG0 register using this value 4563 * after it is started below. 4564 */ 4565 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0, 4566 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN | 4567 asc_dvc->chip_scsi_id); 4568 4569 /* 4570 * Determine SCSI_CFG1 Microcode Default Value. 4571 * 4572 * The microcode will set the SCSI_CFG1 register using this value 4573 * after it is started below. 4574 */ 4575 4576 /* Read current SCSI_CFG1 Register value. */ 4577 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1); 4578 4579 /* 4580 * If all three connectors are in use, return an error. 4581 */ 4582 if ((scsi_cfg1 & CABLE_ILLEGAL_A) == 0 || 4583 (scsi_cfg1 & CABLE_ILLEGAL_B) == 0) { 4584 asc_dvc->err_code |= ASC_IERR_ILLEGAL_CONNECTION; 4585 return ADV_ERROR; 4586 } 4587 4588 /* 4589 * If the internal narrow cable is reversed all of the SCSI_CTRL 4590 * register signals will be set. Check for and return an error if 4591 * this condition is found. 4592 */ 4593 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) { 4594 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE; 4595 return ADV_ERROR; 4596 } 4597 4598 /* 4599 * If this is a differential board and a single-ended device 4600 * is attached to one of the connectors, return an error. 4601 */ 4602 if ((scsi_cfg1 & DIFF_MODE) && (scsi_cfg1 & DIFF_SENSE) == 0) { 4603 asc_dvc->err_code |= ASC_IERR_SINGLE_END_DEVICE; 4604 return ADV_ERROR; 4605 } 4606 4607 /* 4608 * If automatic termination control is enabled, then set the 4609 * termination value based on a table listed in a_condor.h. 4610 * 4611 * If manual termination was specified with an EEPROM setting 4612 * then 'termination' was set-up in AdvInitFrom3550EEPROM() and 4613 * is ready to be 'ored' into SCSI_CFG1. 4614 */ 4615 if (asc_dvc->cfg->termination == 0) { 4616 /* 4617 * The software always controls termination by setting TERM_CTL_SEL. 4618 * If TERM_CTL_SEL were set to 0, the hardware would set termination. 4619 */ 4620 asc_dvc->cfg->termination |= TERM_CTL_SEL; 4621 4622 switch (scsi_cfg1 & CABLE_DETECT) { 4623 /* TERM_CTL_H: on, TERM_CTL_L: on */ 4624 case 0x3: 4625 case 0x7: 4626 case 0xB: 4627 case 0xD: 4628 case 0xE: 4629 case 0xF: 4630 asc_dvc->cfg->termination |= (TERM_CTL_H | TERM_CTL_L); 4631 break; 4632 4633 /* TERM_CTL_H: on, TERM_CTL_L: off */ 4634 case 0x1: 4635 case 0x5: 4636 case 0x9: 4637 case 0xA: 4638 case 0xC: 4639 asc_dvc->cfg->termination |= TERM_CTL_H; 4640 break; 4641 4642 /* TERM_CTL_H: off, TERM_CTL_L: off */ 4643 case 0x2: 4644 case 0x6: 4645 break; 4646 } 4647 } 4648 4649 /* 4650 * Clear any set TERM_CTL_H and TERM_CTL_L bits. 4651 */ 4652 scsi_cfg1 &= ~TERM_CTL; 4653 4654 /* 4655 * Invert the TERM_CTL_H and TERM_CTL_L bits and then 4656 * set 'scsi_cfg1'. The TERM_POL bit does not need to be 4657 * referenced, because the hardware internally inverts 4658 * the Termination High and Low bits if TERM_POL is set. 4659 */ 4660 scsi_cfg1 |= (TERM_CTL_SEL | (~asc_dvc->cfg->termination & TERM_CTL)); 4661 4662 /* 4663 * Set SCSI_CFG1 Microcode Default Value 4664 * 4665 * Set filter value and possibly modified termination control 4666 * bits in the Microcode SCSI_CFG1 Register Value. 4667 * 4668 * The microcode will set the SCSI_CFG1 register using this value 4669 * after it is started below. 4670 */ 4671 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1, 4672 FLTR_DISABLE | scsi_cfg1); 4673 4674 /* 4675 * Set MEM_CFG Microcode Default Value 4676 * 4677 * The microcode will set the MEM_CFG register using this value 4678 * after it is started below. 4679 * 4680 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 4681 * are defined. 4682 * 4683 * ASC-3550 has 8KB internal memory. 4684 */ 4685 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG, 4686 BIOS_EN | RAM_SZ_8KB); 4687 4688 /* 4689 * Set SEL_MASK Microcode Default Value 4690 * 4691 * The microcode will set the SEL_MASK register using this value 4692 * after it is started below. 4693 */ 4694 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, 4695 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); 4696 4697 AdvBuildCarrierFreelist(asc_dvc); 4698 4699 /* 4700 * Set-up the Host->RISC Initiator Command Queue (ICQ). 4701 */ 4702 4703 asc_dvc->icq_sp = adv_get_next_carrier(asc_dvc); 4704 if (!asc_dvc->icq_sp) { 4705 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 4706 return ADV_ERROR; 4707 } 4708 4709 /* 4710 * Set RISC ICQ physical address start value. 4711 */ 4712 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa); 4713 4714 /* 4715 * Set-up the RISC->Host Initiator Response Queue (IRQ). 4716 */ 4717 asc_dvc->irq_sp = adv_get_next_carrier(asc_dvc); 4718 if (!asc_dvc->irq_sp) { 4719 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 4720 return ADV_ERROR; 4721 } 4722 4723 /* 4724 * Set RISC IRQ physical address start value. 4725 */ 4726 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa); 4727 asc_dvc->carr_pending_cnt = 0; 4728 4729 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES, 4730 (ADV_INTR_ENABLE_HOST_INTR | 4731 ADV_INTR_ENABLE_GLOBAL_INTR)); 4732 4733 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word); 4734 AdvWriteWordRegister(iop_base, IOPW_PC, word); 4735 4736 /* finally, finally, gentlemen, start your engine */ 4737 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN); 4738 4739 /* 4740 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus 4741 * Resets should be performed. The RISC has to be running 4742 * to issue a SCSI Bus Reset. 4743 */ 4744 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) { 4745 /* 4746 * If the BIOS Signature is present in memory, restore the 4747 * BIOS Handshake Configuration Table and do not perform 4748 * a SCSI Bus Reset. 4749 */ 4750 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] == 4751 0x55AA) { 4752 /* 4753 * Restore per TID negotiated values. 4754 */ 4755 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 4756 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 4757 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, 4758 tagqng_able); 4759 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 4760 AdvWriteByteLram(iop_base, 4761 ASC_MC_NUMBER_OF_MAX_CMD + tid, 4762 max_cmd[tid]); 4763 } 4764 } else { 4765 if (AdvResetSB(asc_dvc) != ADV_TRUE) { 4766 warn_code = ASC_WARN_BUSRESET_ERROR; 4767 } 4768 } 4769 } 4770 4771 return warn_code; 4772 } 4773 4774 /* 4775 * Initialize the ASC-38C0800. 4776 * 4777 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. 4778 * 4779 * For a non-fatal error return a warning code. If there are no warnings 4780 * then 0 is returned. 4781 * 4782 * Needed after initialization for error recovery. 4783 */ AdvInitAsc38C0800Driver(ADV_DVC_VAR * asc_dvc)4784 static int AdvInitAsc38C0800Driver(ADV_DVC_VAR *asc_dvc) 4785 { 4786 const struct firmware *fw; 4787 const char fwname[] = "advansys/38C0800.bin"; 4788 AdvPortAddr iop_base; 4789 ushort warn_code; 4790 int begin_addr; 4791 int end_addr; 4792 ushort code_sum; 4793 int word; 4794 int i; 4795 int err; 4796 unsigned long chksum; 4797 ushort scsi_cfg1; 4798 uchar byte; 4799 uchar tid; 4800 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */ 4801 ushort wdtr_able, sdtr_able, tagqng_able; 4802 uchar max_cmd[ADV_MAX_TID + 1]; 4803 4804 /* If there is already an error, don't continue. */ 4805 if (asc_dvc->err_code != 0) 4806 return ADV_ERROR; 4807 4808 /* 4809 * The caller must set 'chip_type' to ADV_CHIP_ASC38C0800. 4810 */ 4811 if (asc_dvc->chip_type != ADV_CHIP_ASC38C0800) { 4812 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE; 4813 return ADV_ERROR; 4814 } 4815 4816 warn_code = 0; 4817 iop_base = asc_dvc->iop_base; 4818 4819 /* 4820 * Save the RISC memory BIOS region before writing the microcode. 4821 * The BIOS may already be loaded and using its RISC LRAM region 4822 * so its region must be saved and restored. 4823 * 4824 * Note: This code makes the assumption, which is currently true, 4825 * that a chip reset does not clear RISC LRAM. 4826 */ 4827 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 4828 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 4829 bios_mem[i]); 4830 } 4831 4832 /* 4833 * Save current per TID negotiated values. 4834 */ 4835 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 4836 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 4837 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 4838 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 4839 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, 4840 max_cmd[tid]); 4841 } 4842 4843 /* 4844 * RAM BIST (RAM Built-In Self Test) 4845 * 4846 * Address : I/O base + offset 0x38h register (byte). 4847 * Function: Bit 7-6(RW) : RAM mode 4848 * Normal Mode : 0x00 4849 * Pre-test Mode : 0x40 4850 * RAM Test Mode : 0x80 4851 * Bit 5 : unused 4852 * Bit 4(RO) : Done bit 4853 * Bit 3-0(RO) : Status 4854 * Host Error : 0x08 4855 * Int_RAM Error : 0x04 4856 * RISC Error : 0x02 4857 * SCSI Error : 0x01 4858 * No Error : 0x00 4859 * 4860 * Note: RAM BIST code should be put right here, before loading the 4861 * microcode and after saving the RISC memory BIOS region. 4862 */ 4863 4864 /* 4865 * LRAM Pre-test 4866 * 4867 * Write PRE_TEST_MODE (0x40) to register and wait for 10 milliseconds. 4868 * If Done bit not set or low nibble not PRE_TEST_VALUE (0x05), return 4869 * an error. Reset to NORMAL_MODE (0x00) and do again. If cannot reset 4870 * to NORMAL_MODE, return an error too. 4871 */ 4872 for (i = 0; i < 2; i++) { 4873 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE); 4874 mdelay(10); /* Wait for 10ms before reading back. */ 4875 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); 4876 if ((byte & RAM_TEST_DONE) == 0 4877 || (byte & 0x0F) != PRE_TEST_VALUE) { 4878 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; 4879 return ADV_ERROR; 4880 } 4881 4882 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); 4883 mdelay(10); /* Wait for 10ms before reading back. */ 4884 if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) 4885 != NORMAL_VALUE) { 4886 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; 4887 return ADV_ERROR; 4888 } 4889 } 4890 4891 /* 4892 * LRAM Test - It takes about 1.5 ms to run through the test. 4893 * 4894 * Write RAM_TEST_MODE (0x80) to register and wait for 10 milliseconds. 4895 * If Done bit not set or Status not 0, save register byte, set the 4896 * err_code, and return an error. 4897 */ 4898 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE); 4899 mdelay(10); /* Wait for 10ms before checking status. */ 4900 4901 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); 4902 if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { 4903 /* Get here if Done bit not set or Status not 0. */ 4904 asc_dvc->bist_err_code = byte; /* for BIOS display message */ 4905 asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST; 4906 return ADV_ERROR; 4907 } 4908 4909 /* We need to reset back to normal mode after LRAM test passes. */ 4910 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); 4911 4912 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev); 4913 if (err) { 4914 printk(KERN_ERR "Failed to load image \"%s\" err %d\n", 4915 fwname, err); 4916 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 4917 return err; 4918 } 4919 if (fw->size < 4) { 4920 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", 4921 fw->size, fwname); 4922 release_firmware(fw); 4923 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 4924 return -EINVAL; 4925 } 4926 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) | 4927 (fw->data[1] << 8) | fw->data[0]; 4928 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4], 4929 fw->size - 4, ADV_38C0800_MEMSIZE, 4930 chksum); 4931 release_firmware(fw); 4932 if (asc_dvc->err_code) 4933 return ADV_ERROR; 4934 4935 /* 4936 * Restore the RISC memory BIOS region. 4937 */ 4938 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 4939 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 4940 bios_mem[i]); 4941 } 4942 4943 /* 4944 * Calculate and write the microcode code checksum to the microcode 4945 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C). 4946 */ 4947 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr); 4948 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr); 4949 code_sum = 0; 4950 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr); 4951 for (word = begin_addr; word < end_addr; word += 2) { 4952 code_sum += AdvReadWordAutoIncLram(iop_base); 4953 } 4954 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum); 4955 4956 /* 4957 * Read microcode version and date. 4958 */ 4959 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE, 4960 asc_dvc->cfg->mcode_date); 4961 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM, 4962 asc_dvc->cfg->mcode_version); 4963 4964 /* 4965 * Set the chip type to indicate the ASC38C0800. 4966 */ 4967 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC38C0800); 4968 4969 /* 4970 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register. 4971 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current 4972 * cable detection and then we are able to read C_DET[3:0]. 4973 * 4974 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1 4975 * Microcode Default Value' section below. 4976 */ 4977 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1); 4978 AdvWriteWordRegister(iop_base, IOPW_SCSI_CFG1, 4979 scsi_cfg1 | DIS_TERM_DRV); 4980 4981 /* 4982 * If the PCI Configuration Command Register "Parity Error Response 4983 * Control" Bit was clear (0), then set the microcode variable 4984 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 4985 * to ignore DMA parity errors. 4986 */ 4987 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) { 4988 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 4989 word |= CONTROL_FLAG_IGNORE_PERR; 4990 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 4991 } 4992 4993 /* 4994 * For ASC-38C0800, set FIFO_THRESH_80B [6:4] bits and START_CTL_TH [3:2] 4995 * bits for the default FIFO threshold. 4996 * 4997 * Note: ASC-38C0800 FIFO threshold has been changed to 256 bytes. 4998 * 4999 * For DMA Errata #4 set the BC_THRESH_ENB bit. 5000 */ 5001 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0, 5002 BC_THRESH_ENB | FIFO_THRESH_80B | START_CTL_TH | 5003 READ_CMD_MRM); 5004 5005 /* 5006 * Microcode operating variables for WDTR, SDTR, and command tag 5007 * queuing will be set in slave_configure() based on what a 5008 * device reports it is capable of in Inquiry byte 7. 5009 * 5010 * If SCSI Bus Resets have been disabled, then directly set 5011 * SDTR and WDTR from the EEPROM configuration. This will allow 5012 * the BIOS and warm boot to work without a SCSI bus hang on 5013 * the Inquiry caused by host and target mismatched DTR values. 5014 * Without the SCSI Bus Reset, before an Inquiry a device can't 5015 * be assumed to be in Asynchronous, Narrow mode. 5016 */ 5017 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) { 5018 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, 5019 asc_dvc->wdtr_able); 5020 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, 5021 asc_dvc->sdtr_able); 5022 } 5023 5024 /* 5025 * Set microcode operating variables for DISC and SDTR_SPEED1, 5026 * SDTR_SPEED2, SDTR_SPEED3, and SDTR_SPEED4 based on the EEPROM 5027 * configuration values. 5028 * 5029 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2, 5030 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them 5031 * without determining here whether the device supports SDTR. 5032 */ 5033 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE, 5034 asc_dvc->cfg->disc_enable); 5035 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, asc_dvc->sdtr_speed1); 5036 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, asc_dvc->sdtr_speed2); 5037 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, asc_dvc->sdtr_speed3); 5038 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, asc_dvc->sdtr_speed4); 5039 5040 /* 5041 * Set SCSI_CFG0 Microcode Default Value. 5042 * 5043 * The microcode will set the SCSI_CFG0 register using this value 5044 * after it is started below. 5045 */ 5046 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0, 5047 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN | 5048 asc_dvc->chip_scsi_id); 5049 5050 /* 5051 * Determine SCSI_CFG1 Microcode Default Value. 5052 * 5053 * The microcode will set the SCSI_CFG1 register using this value 5054 * after it is started below. 5055 */ 5056 5057 /* Read current SCSI_CFG1 Register value. */ 5058 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1); 5059 5060 /* 5061 * If the internal narrow cable is reversed all of the SCSI_CTRL 5062 * register signals will be set. Check for and return an error if 5063 * this condition is found. 5064 */ 5065 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) { 5066 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE; 5067 return ADV_ERROR; 5068 } 5069 5070 /* 5071 * All kind of combinations of devices attached to one of four 5072 * connectors are acceptable except HVD device attached. For example, 5073 * LVD device can be attached to SE connector while SE device attached 5074 * to LVD connector. If LVD device attached to SE connector, it only 5075 * runs up to Ultra speed. 5076 * 5077 * If an HVD device is attached to one of LVD connectors, return an 5078 * error. However, there is no way to detect HVD device attached to 5079 * SE connectors. 5080 */ 5081 if (scsi_cfg1 & HVD) { 5082 asc_dvc->err_code = ASC_IERR_HVD_DEVICE; 5083 return ADV_ERROR; 5084 } 5085 5086 /* 5087 * If either SE or LVD automatic termination control is enabled, then 5088 * set the termination value based on a table listed in a_condor.h. 5089 * 5090 * If manual termination was specified with an EEPROM setting then 5091 * 'termination' was set-up in AdvInitFrom38C0800EEPROM() and is ready 5092 * to be 'ored' into SCSI_CFG1. 5093 */ 5094 if ((asc_dvc->cfg->termination & TERM_SE) == 0) { 5095 /* SE automatic termination control is enabled. */ 5096 switch (scsi_cfg1 & C_DET_SE) { 5097 /* TERM_SE_HI: on, TERM_SE_LO: on */ 5098 case 0x1: 5099 case 0x2: 5100 case 0x3: 5101 asc_dvc->cfg->termination |= TERM_SE; 5102 break; 5103 5104 /* TERM_SE_HI: on, TERM_SE_LO: off */ 5105 case 0x0: 5106 asc_dvc->cfg->termination |= TERM_SE_HI; 5107 break; 5108 } 5109 } 5110 5111 if ((asc_dvc->cfg->termination & TERM_LVD) == 0) { 5112 /* LVD automatic termination control is enabled. */ 5113 switch (scsi_cfg1 & C_DET_LVD) { 5114 /* TERM_LVD_HI: on, TERM_LVD_LO: on */ 5115 case 0x4: 5116 case 0x8: 5117 case 0xC: 5118 asc_dvc->cfg->termination |= TERM_LVD; 5119 break; 5120 5121 /* TERM_LVD_HI: off, TERM_LVD_LO: off */ 5122 case 0x0: 5123 break; 5124 } 5125 } 5126 5127 /* 5128 * Clear any set TERM_SE and TERM_LVD bits. 5129 */ 5130 scsi_cfg1 &= (~TERM_SE & ~TERM_LVD); 5131 5132 /* 5133 * Invert the TERM_SE and TERM_LVD bits and then set 'scsi_cfg1'. 5134 */ 5135 scsi_cfg1 |= (~asc_dvc->cfg->termination & 0xF0); 5136 5137 /* 5138 * Clear BIG_ENDIAN, DIS_TERM_DRV, Terminator Polarity and HVD/LVD/SE 5139 * bits and set possibly modified termination control bits in the 5140 * Microcode SCSI_CFG1 Register Value. 5141 */ 5142 scsi_cfg1 &= (~BIG_ENDIAN & ~DIS_TERM_DRV & ~TERM_POL & ~HVD_LVD_SE); 5143 5144 /* 5145 * Set SCSI_CFG1 Microcode Default Value 5146 * 5147 * Set possibly modified termination control and reset DIS_TERM_DRV 5148 * bits in the Microcode SCSI_CFG1 Register Value. 5149 * 5150 * The microcode will set the SCSI_CFG1 register using this value 5151 * after it is started below. 5152 */ 5153 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1, scsi_cfg1); 5154 5155 /* 5156 * Set MEM_CFG Microcode Default Value 5157 * 5158 * The microcode will set the MEM_CFG register using this value 5159 * after it is started below. 5160 * 5161 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 5162 * are defined. 5163 * 5164 * ASC-38C0800 has 16KB internal memory. 5165 */ 5166 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG, 5167 BIOS_EN | RAM_SZ_16KB); 5168 5169 /* 5170 * Set SEL_MASK Microcode Default Value 5171 * 5172 * The microcode will set the SEL_MASK register using this value 5173 * after it is started below. 5174 */ 5175 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, 5176 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); 5177 5178 AdvBuildCarrierFreelist(asc_dvc); 5179 5180 /* 5181 * Set-up the Host->RISC Initiator Command Queue (ICQ). 5182 */ 5183 5184 asc_dvc->icq_sp = adv_get_next_carrier(asc_dvc); 5185 if (!asc_dvc->icq_sp) { 5186 ASC_DBG(0, "Failed to get ICQ carrier\n"); 5187 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 5188 return ADV_ERROR; 5189 } 5190 5191 /* 5192 * Set RISC ICQ physical address start value. 5193 * carr_pa is LE, must be native before write 5194 */ 5195 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa); 5196 5197 /* 5198 * Set-up the RISC->Host Initiator Response Queue (IRQ). 5199 */ 5200 asc_dvc->irq_sp = adv_get_next_carrier(asc_dvc); 5201 if (!asc_dvc->irq_sp) { 5202 ASC_DBG(0, "Failed to get IRQ carrier\n"); 5203 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 5204 return ADV_ERROR; 5205 } 5206 5207 /* 5208 * Set RISC IRQ physical address start value. 5209 * 5210 * carr_pa is LE, must be native before write * 5211 */ 5212 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa); 5213 asc_dvc->carr_pending_cnt = 0; 5214 5215 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES, 5216 (ADV_INTR_ENABLE_HOST_INTR | 5217 ADV_INTR_ENABLE_GLOBAL_INTR)); 5218 5219 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word); 5220 AdvWriteWordRegister(iop_base, IOPW_PC, word); 5221 5222 /* finally, finally, gentlemen, start your engine */ 5223 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN); 5224 5225 /* 5226 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus 5227 * Resets should be performed. The RISC has to be running 5228 * to issue a SCSI Bus Reset. 5229 */ 5230 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) { 5231 /* 5232 * If the BIOS Signature is present in memory, restore the 5233 * BIOS Handshake Configuration Table and do not perform 5234 * a SCSI Bus Reset. 5235 */ 5236 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] == 5237 0x55AA) { 5238 /* 5239 * Restore per TID negotiated values. 5240 */ 5241 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 5242 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 5243 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, 5244 tagqng_able); 5245 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 5246 AdvWriteByteLram(iop_base, 5247 ASC_MC_NUMBER_OF_MAX_CMD + tid, 5248 max_cmd[tid]); 5249 } 5250 } else { 5251 if (AdvResetSB(asc_dvc) != ADV_TRUE) { 5252 warn_code = ASC_WARN_BUSRESET_ERROR; 5253 } 5254 } 5255 } 5256 5257 return warn_code; 5258 } 5259 5260 /* 5261 * Initialize the ASC-38C1600. 5262 * 5263 * On failure set the ASC_DVC_VAR field 'err_code' and return ADV_ERROR. 5264 * 5265 * For a non-fatal error return a warning code. If there are no warnings 5266 * then 0 is returned. 5267 * 5268 * Needed after initialization for error recovery. 5269 */ AdvInitAsc38C1600Driver(ADV_DVC_VAR * asc_dvc)5270 static int AdvInitAsc38C1600Driver(ADV_DVC_VAR *asc_dvc) 5271 { 5272 const struct firmware *fw; 5273 const char fwname[] = "advansys/38C1600.bin"; 5274 AdvPortAddr iop_base; 5275 ushort warn_code; 5276 int begin_addr; 5277 int end_addr; 5278 ushort code_sum; 5279 long word; 5280 int i; 5281 int err; 5282 unsigned long chksum; 5283 ushort scsi_cfg1; 5284 uchar byte; 5285 uchar tid; 5286 ushort bios_mem[ASC_MC_BIOSLEN / 2]; /* BIOS RISC Memory 0x40-0x8F. */ 5287 ushort wdtr_able, sdtr_able, ppr_able, tagqng_able; 5288 uchar max_cmd[ASC_MAX_TID + 1]; 5289 5290 /* If there is already an error, don't continue. */ 5291 if (asc_dvc->err_code != 0) { 5292 return ADV_ERROR; 5293 } 5294 5295 /* 5296 * The caller must set 'chip_type' to ADV_CHIP_ASC38C1600. 5297 */ 5298 if (asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { 5299 asc_dvc->err_code = ASC_IERR_BAD_CHIPTYPE; 5300 return ADV_ERROR; 5301 } 5302 5303 warn_code = 0; 5304 iop_base = asc_dvc->iop_base; 5305 5306 /* 5307 * Save the RISC memory BIOS region before writing the microcode. 5308 * The BIOS may already be loaded and using its RISC LRAM region 5309 * so its region must be saved and restored. 5310 * 5311 * Note: This code makes the assumption, which is currently true, 5312 * that a chip reset does not clear RISC LRAM. 5313 */ 5314 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 5315 AdvReadWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 5316 bios_mem[i]); 5317 } 5318 5319 /* 5320 * Save current per TID negotiated values. 5321 */ 5322 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 5323 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 5324 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); 5325 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 5326 for (tid = 0; tid <= ASC_MAX_TID; tid++) { 5327 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, 5328 max_cmd[tid]); 5329 } 5330 5331 /* 5332 * RAM BIST (Built-In Self Test) 5333 * 5334 * Address : I/O base + offset 0x38h register (byte). 5335 * Function: Bit 7-6(RW) : RAM mode 5336 * Normal Mode : 0x00 5337 * Pre-test Mode : 0x40 5338 * RAM Test Mode : 0x80 5339 * Bit 5 : unused 5340 * Bit 4(RO) : Done bit 5341 * Bit 3-0(RO) : Status 5342 * Host Error : 0x08 5343 * Int_RAM Error : 0x04 5344 * RISC Error : 0x02 5345 * SCSI Error : 0x01 5346 * No Error : 0x00 5347 * 5348 * Note: RAM BIST code should be put right here, before loading the 5349 * microcode and after saving the RISC memory BIOS region. 5350 */ 5351 5352 /* 5353 * LRAM Pre-test 5354 * 5355 * Write PRE_TEST_MODE (0x40) to register and wait for 10 milliseconds. 5356 * If Done bit not set or low nibble not PRE_TEST_VALUE (0x05), return 5357 * an error. Reset to NORMAL_MODE (0x00) and do again. If cannot reset 5358 * to NORMAL_MODE, return an error too. 5359 */ 5360 for (i = 0; i < 2; i++) { 5361 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, PRE_TEST_MODE); 5362 mdelay(10); /* Wait for 10ms before reading back. */ 5363 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); 5364 if ((byte & RAM_TEST_DONE) == 0 5365 || (byte & 0x0F) != PRE_TEST_VALUE) { 5366 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; 5367 return ADV_ERROR; 5368 } 5369 5370 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); 5371 mdelay(10); /* Wait for 10ms before reading back. */ 5372 if (AdvReadByteRegister(iop_base, IOPB_RAM_BIST) 5373 != NORMAL_VALUE) { 5374 asc_dvc->err_code = ASC_IERR_BIST_PRE_TEST; 5375 return ADV_ERROR; 5376 } 5377 } 5378 5379 /* 5380 * LRAM Test - It takes about 1.5 ms to run through the test. 5381 * 5382 * Write RAM_TEST_MODE (0x80) to register and wait for 10 milliseconds. 5383 * If Done bit not set or Status not 0, save register byte, set the 5384 * err_code, and return an error. 5385 */ 5386 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, RAM_TEST_MODE); 5387 mdelay(10); /* Wait for 10ms before checking status. */ 5388 5389 byte = AdvReadByteRegister(iop_base, IOPB_RAM_BIST); 5390 if ((byte & RAM_TEST_DONE) == 0 || (byte & RAM_TEST_STATUS) != 0) { 5391 /* Get here if Done bit not set or Status not 0. */ 5392 asc_dvc->bist_err_code = byte; /* for BIOS display message */ 5393 asc_dvc->err_code = ASC_IERR_BIST_RAM_TEST; 5394 return ADV_ERROR; 5395 } 5396 5397 /* We need to reset back to normal mode after LRAM test passes. */ 5398 AdvWriteByteRegister(iop_base, IOPB_RAM_BIST, NORMAL_MODE); 5399 5400 err = request_firmware(&fw, fwname, asc_dvc->drv_ptr->dev); 5401 if (err) { 5402 printk(KERN_ERR "Failed to load image \"%s\" err %d\n", 5403 fwname, err); 5404 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 5405 return err; 5406 } 5407 if (fw->size < 4) { 5408 printk(KERN_ERR "Bogus length %zu in image \"%s\"\n", 5409 fw->size, fwname); 5410 release_firmware(fw); 5411 asc_dvc->err_code = ASC_IERR_MCODE_CHKSUM; 5412 return -EINVAL; 5413 } 5414 chksum = (fw->data[3] << 24) | (fw->data[2] << 16) | 5415 (fw->data[1] << 8) | fw->data[0]; 5416 asc_dvc->err_code = AdvLoadMicrocode(iop_base, &fw->data[4], 5417 fw->size - 4, ADV_38C1600_MEMSIZE, 5418 chksum); 5419 release_firmware(fw); 5420 if (asc_dvc->err_code) 5421 return ADV_ERROR; 5422 5423 /* 5424 * Restore the RISC memory BIOS region. 5425 */ 5426 for (i = 0; i < ASC_MC_BIOSLEN / 2; i++) { 5427 AdvWriteWordLram(iop_base, ASC_MC_BIOSMEM + (2 * i), 5428 bios_mem[i]); 5429 } 5430 5431 /* 5432 * Calculate and write the microcode code checksum to the microcode 5433 * code checksum location ASC_MC_CODE_CHK_SUM (0x2C). 5434 */ 5435 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, begin_addr); 5436 AdvReadWordLram(iop_base, ASC_MC_CODE_END_ADDR, end_addr); 5437 code_sum = 0; 5438 AdvWriteWordRegister(iop_base, IOPW_RAM_ADDR, begin_addr); 5439 for (word = begin_addr; word < end_addr; word += 2) { 5440 code_sum += AdvReadWordAutoIncLram(iop_base); 5441 } 5442 AdvWriteWordLram(iop_base, ASC_MC_CODE_CHK_SUM, code_sum); 5443 5444 /* 5445 * Read microcode version and date. 5446 */ 5447 AdvReadWordLram(iop_base, ASC_MC_VERSION_DATE, 5448 asc_dvc->cfg->mcode_date); 5449 AdvReadWordLram(iop_base, ASC_MC_VERSION_NUM, 5450 asc_dvc->cfg->mcode_version); 5451 5452 /* 5453 * Set the chip type to indicate the ASC38C1600. 5454 */ 5455 AdvWriteWordLram(iop_base, ASC_MC_CHIP_TYPE, ADV_CHIP_ASC38C1600); 5456 5457 /* 5458 * Write 1 to bit 14 'DIS_TERM_DRV' in the SCSI_CFG1 register. 5459 * When DIS_TERM_DRV set to 1, C_DET[3:0] will reflect current 5460 * cable detection and then we are able to read C_DET[3:0]. 5461 * 5462 * Note: We will reset DIS_TERM_DRV to 0 in the 'Set SCSI_CFG1 5463 * Microcode Default Value' section below. 5464 */ 5465 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1); 5466 AdvWriteWordRegister(iop_base, IOPW_SCSI_CFG1, 5467 scsi_cfg1 | DIS_TERM_DRV); 5468 5469 /* 5470 * If the PCI Configuration Command Register "Parity Error Response 5471 * Control" Bit was clear (0), then set the microcode variable 5472 * 'control_flag' CONTROL_FLAG_IGNORE_PERR flag to tell the microcode 5473 * to ignore DMA parity errors. 5474 */ 5475 if (asc_dvc->cfg->control_flag & CONTROL_FLAG_IGNORE_PERR) { 5476 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 5477 word |= CONTROL_FLAG_IGNORE_PERR; 5478 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 5479 } 5480 5481 /* 5482 * If the BIOS control flag AIPP (Asynchronous Information 5483 * Phase Protection) disable bit is not set, then set the firmware 5484 * 'control_flag' CONTROL_FLAG_ENABLE_AIPP bit to enable 5485 * AIPP checking and encoding. 5486 */ 5487 if ((asc_dvc->bios_ctrl & BIOS_CTRL_AIPP_DIS) == 0) { 5488 AdvReadWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 5489 word |= CONTROL_FLAG_ENABLE_AIPP; 5490 AdvWriteWordLram(iop_base, ASC_MC_CONTROL_FLAG, word); 5491 } 5492 5493 /* 5494 * For ASC-38C1600 use DMA_CFG0 default values: FIFO_THRESH_80B [6:4], 5495 * and START_CTL_TH [3:2]. 5496 */ 5497 AdvWriteByteRegister(iop_base, IOPB_DMA_CFG0, 5498 FIFO_THRESH_80B | START_CTL_TH | READ_CMD_MRM); 5499 5500 /* 5501 * Microcode operating variables for WDTR, SDTR, and command tag 5502 * queuing will be set in slave_configure() based on what a 5503 * device reports it is capable of in Inquiry byte 7. 5504 * 5505 * If SCSI Bus Resets have been disabled, then directly set 5506 * SDTR and WDTR from the EEPROM configuration. This will allow 5507 * the BIOS and warm boot to work without a SCSI bus hang on 5508 * the Inquiry caused by host and target mismatched DTR values. 5509 * Without the SCSI Bus Reset, before an Inquiry a device can't 5510 * be assumed to be in Asynchronous, Narrow mode. 5511 */ 5512 if ((asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) == 0) { 5513 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, 5514 asc_dvc->wdtr_able); 5515 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, 5516 asc_dvc->sdtr_able); 5517 } 5518 5519 /* 5520 * Set microcode operating variables for DISC and SDTR_SPEED1, 5521 * SDTR_SPEED2, SDTR_SPEED3, and SDTR_SPEED4 based on the EEPROM 5522 * configuration values. 5523 * 5524 * The SDTR per TID bitmask overrides the SDTR_SPEED1, SDTR_SPEED2, 5525 * SDTR_SPEED3, and SDTR_SPEED4 values so it is safe to set them 5526 * without determining here whether the device supports SDTR. 5527 */ 5528 AdvWriteWordLram(iop_base, ASC_MC_DISC_ENABLE, 5529 asc_dvc->cfg->disc_enable); 5530 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED1, asc_dvc->sdtr_speed1); 5531 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED2, asc_dvc->sdtr_speed2); 5532 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED3, asc_dvc->sdtr_speed3); 5533 AdvWriteWordLram(iop_base, ASC_MC_SDTR_SPEED4, asc_dvc->sdtr_speed4); 5534 5535 /* 5536 * Set SCSI_CFG0 Microcode Default Value. 5537 * 5538 * The microcode will set the SCSI_CFG0 register using this value 5539 * after it is started below. 5540 */ 5541 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG0, 5542 PARITY_EN | QUEUE_128 | SEL_TMO_LONG | OUR_ID_EN | 5543 asc_dvc->chip_scsi_id); 5544 5545 /* 5546 * Calculate SCSI_CFG1 Microcode Default Value. 5547 * 5548 * The microcode will set the SCSI_CFG1 register using this value 5549 * after it is started below. 5550 * 5551 * Each ASC-38C1600 function has only two cable detect bits. 5552 * The bus mode override bits are in IOPB_SOFT_OVER_WR. 5553 */ 5554 scsi_cfg1 = AdvReadWordRegister(iop_base, IOPW_SCSI_CFG1); 5555 5556 /* 5557 * If the cable is reversed all of the SCSI_CTRL register signals 5558 * will be set. Check for and return an error if this condition is 5559 * found. 5560 */ 5561 if ((AdvReadWordRegister(iop_base, IOPW_SCSI_CTRL) & 0x3F07) == 0x3F07) { 5562 asc_dvc->err_code |= ASC_IERR_REVERSED_CABLE; 5563 return ADV_ERROR; 5564 } 5565 5566 /* 5567 * Each ASC-38C1600 function has two connectors. Only an HVD device 5568 * can not be connected to either connector. An LVD device or SE device 5569 * may be connected to either connecor. If an SE device is connected, 5570 * then at most Ultra speed (20 Mhz) can be used on both connectors. 5571 * 5572 * If an HVD device is attached, return an error. 5573 */ 5574 if (scsi_cfg1 & HVD) { 5575 asc_dvc->err_code |= ASC_IERR_HVD_DEVICE; 5576 return ADV_ERROR; 5577 } 5578 5579 /* 5580 * Each function in the ASC-38C1600 uses only the SE cable detect and 5581 * termination because there are two connectors for each function. Each 5582 * function may use either LVD or SE mode. Corresponding the SE automatic 5583 * termination control EEPROM bits are used for each function. Each 5584 * function has its own EEPROM. If SE automatic control is enabled for 5585 * the function, then set the termination value based on a table listed 5586 * in a_condor.h. 5587 * 5588 * If manual termination is specified in the EEPROM for the function, 5589 * then 'termination' was set-up in AscInitFrom38C1600EEPROM() and is 5590 * ready to be 'ored' into SCSI_CFG1. 5591 */ 5592 if ((asc_dvc->cfg->termination & TERM_SE) == 0) { 5593 struct pci_dev *pdev = adv_dvc_to_pdev(asc_dvc); 5594 /* SE automatic termination control is enabled. */ 5595 switch (scsi_cfg1 & C_DET_SE) { 5596 /* TERM_SE_HI: on, TERM_SE_LO: on */ 5597 case 0x1: 5598 case 0x2: 5599 case 0x3: 5600 asc_dvc->cfg->termination |= TERM_SE; 5601 break; 5602 5603 case 0x0: 5604 if (PCI_FUNC(pdev->devfn) == 0) { 5605 /* Function 0 - TERM_SE_HI: off, TERM_SE_LO: off */ 5606 } else { 5607 /* Function 1 - TERM_SE_HI: on, TERM_SE_LO: off */ 5608 asc_dvc->cfg->termination |= TERM_SE_HI; 5609 } 5610 break; 5611 } 5612 } 5613 5614 /* 5615 * Clear any set TERM_SE bits. 5616 */ 5617 scsi_cfg1 &= ~TERM_SE; 5618 5619 /* 5620 * Invert the TERM_SE bits and then set 'scsi_cfg1'. 5621 */ 5622 scsi_cfg1 |= (~asc_dvc->cfg->termination & TERM_SE); 5623 5624 /* 5625 * Clear Big Endian and Terminator Polarity bits and set possibly 5626 * modified termination control bits in the Microcode SCSI_CFG1 5627 * Register Value. 5628 * 5629 * Big Endian bit is not used even on big endian machines. 5630 */ 5631 scsi_cfg1 &= (~BIG_ENDIAN & ~DIS_TERM_DRV & ~TERM_POL); 5632 5633 /* 5634 * Set SCSI_CFG1 Microcode Default Value 5635 * 5636 * Set possibly modified termination control bits in the Microcode 5637 * SCSI_CFG1 Register Value. 5638 * 5639 * The microcode will set the SCSI_CFG1 register using this value 5640 * after it is started below. 5641 */ 5642 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SCSI_CFG1, scsi_cfg1); 5643 5644 /* 5645 * Set MEM_CFG Microcode Default Value 5646 * 5647 * The microcode will set the MEM_CFG register using this value 5648 * after it is started below. 5649 * 5650 * MEM_CFG may be accessed as a word or byte, but only bits 0-7 5651 * are defined. 5652 * 5653 * ASC-38C1600 has 32KB internal memory. 5654 * 5655 * XXX - Since ASC38C1600 Rev.3 has a Local RAM failure issue, we come 5656 * out a special 16K Adv Library and Microcode version. After the issue 5657 * resolved, we should turn back to the 32K support. Both a_condor.h and 5658 * mcode.sas files also need to be updated. 5659 * 5660 * AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG, 5661 * BIOS_EN | RAM_SZ_32KB); 5662 */ 5663 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_MEM_CFG, 5664 BIOS_EN | RAM_SZ_16KB); 5665 5666 /* 5667 * Set SEL_MASK Microcode Default Value 5668 * 5669 * The microcode will set the SEL_MASK register using this value 5670 * after it is started below. 5671 */ 5672 AdvWriteWordLram(iop_base, ASC_MC_DEFAULT_SEL_MASK, 5673 ADV_TID_TO_TIDMASK(asc_dvc->chip_scsi_id)); 5674 5675 AdvBuildCarrierFreelist(asc_dvc); 5676 5677 /* 5678 * Set-up the Host->RISC Initiator Command Queue (ICQ). 5679 */ 5680 asc_dvc->icq_sp = adv_get_next_carrier(asc_dvc); 5681 if (!asc_dvc->icq_sp) { 5682 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 5683 return ADV_ERROR; 5684 } 5685 5686 /* 5687 * Set RISC ICQ physical address start value. Initialize the 5688 * COMMA register to the same value otherwise the RISC will 5689 * prematurely detect a command is available. 5690 */ 5691 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_ICQ, asc_dvc->icq_sp->carr_pa); 5692 AdvWriteDWordRegister(iop_base, IOPDW_COMMA, 5693 le32_to_cpu(asc_dvc->icq_sp->carr_pa)); 5694 5695 /* 5696 * Set-up the RISC->Host Initiator Response Queue (IRQ). 5697 */ 5698 asc_dvc->irq_sp = adv_get_next_carrier(asc_dvc); 5699 if (!asc_dvc->irq_sp) { 5700 asc_dvc->err_code |= ASC_IERR_NO_CARRIER; 5701 return ADV_ERROR; 5702 } 5703 5704 /* 5705 * Set RISC IRQ physical address start value. 5706 */ 5707 AdvWriteDWordLramNoSwap(iop_base, ASC_MC_IRQ, asc_dvc->irq_sp->carr_pa); 5708 asc_dvc->carr_pending_cnt = 0; 5709 5710 AdvWriteByteRegister(iop_base, IOPB_INTR_ENABLES, 5711 (ADV_INTR_ENABLE_HOST_INTR | 5712 ADV_INTR_ENABLE_GLOBAL_INTR)); 5713 AdvReadWordLram(iop_base, ASC_MC_CODE_BEGIN_ADDR, word); 5714 AdvWriteWordRegister(iop_base, IOPW_PC, word); 5715 5716 /* finally, finally, gentlemen, start your engine */ 5717 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_RUN); 5718 5719 /* 5720 * Reset the SCSI Bus if the EEPROM indicates that SCSI Bus 5721 * Resets should be performed. The RISC has to be running 5722 * to issue a SCSI Bus Reset. 5723 */ 5724 if (asc_dvc->bios_ctrl & BIOS_CTRL_RESET_SCSI_BUS) { 5725 /* 5726 * If the BIOS Signature is present in memory, restore the 5727 * per TID microcode operating variables. 5728 */ 5729 if (bios_mem[(ASC_MC_BIOS_SIGNATURE - ASC_MC_BIOSMEM) / 2] == 5730 0x55AA) { 5731 /* 5732 * Restore per TID negotiated values. 5733 */ 5734 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 5735 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 5736 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); 5737 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, 5738 tagqng_able); 5739 for (tid = 0; tid <= ASC_MAX_TID; tid++) { 5740 AdvWriteByteLram(iop_base, 5741 ASC_MC_NUMBER_OF_MAX_CMD + tid, 5742 max_cmd[tid]); 5743 } 5744 } else { 5745 if (AdvResetSB(asc_dvc) != ADV_TRUE) { 5746 warn_code = ASC_WARN_BUSRESET_ERROR; 5747 } 5748 } 5749 } 5750 5751 return warn_code; 5752 } 5753 5754 /* 5755 * Reset chip and SCSI Bus. 5756 * 5757 * Return Value: 5758 * ADV_TRUE(1) - Chip re-initialization and SCSI Bus Reset successful. 5759 * ADV_FALSE(0) - Chip re-initialization and SCSI Bus Reset failure. 5760 */ AdvResetChipAndSB(ADV_DVC_VAR * asc_dvc)5761 static int AdvResetChipAndSB(ADV_DVC_VAR *asc_dvc) 5762 { 5763 int status; 5764 ushort wdtr_able, sdtr_able, tagqng_able; 5765 ushort ppr_able = 0; 5766 uchar tid, max_cmd[ADV_MAX_TID + 1]; 5767 AdvPortAddr iop_base; 5768 ushort bios_sig; 5769 5770 iop_base = asc_dvc->iop_base; 5771 5772 /* 5773 * Save current per TID negotiated values. 5774 */ 5775 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 5776 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 5777 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { 5778 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); 5779 } 5780 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 5781 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 5782 AdvReadByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, 5783 max_cmd[tid]); 5784 } 5785 5786 /* 5787 * Force the AdvInitAsc3550/38C0800Driver() function to 5788 * perform a SCSI Bus Reset by clearing the BIOS signature word. 5789 * The initialization functions assumes a SCSI Bus Reset is not 5790 * needed if the BIOS signature word is present. 5791 */ 5792 AdvReadWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); 5793 AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, 0); 5794 5795 /* 5796 * Stop chip and reset it. 5797 */ 5798 AdvWriteWordRegister(iop_base, IOPW_RISC_CSR, ADV_RISC_CSR_STOP); 5799 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, ADV_CTRL_REG_CMD_RESET); 5800 mdelay(100); 5801 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, 5802 ADV_CTRL_REG_CMD_WR_IO_REG); 5803 5804 /* 5805 * Reset Adv Library error code, if any, and try 5806 * re-initializing the chip. 5807 */ 5808 asc_dvc->err_code = 0; 5809 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { 5810 status = AdvInitAsc38C1600Driver(asc_dvc); 5811 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { 5812 status = AdvInitAsc38C0800Driver(asc_dvc); 5813 } else { 5814 status = AdvInitAsc3550Driver(asc_dvc); 5815 } 5816 5817 /* Translate initialization return value to status value. */ 5818 if (status == 0) { 5819 status = ADV_TRUE; 5820 } else { 5821 status = ADV_FALSE; 5822 } 5823 5824 /* 5825 * Restore the BIOS signature word. 5826 */ 5827 AdvWriteWordLram(iop_base, ASC_MC_BIOS_SIGNATURE, bios_sig); 5828 5829 /* 5830 * Restore per TID negotiated values. 5831 */ 5832 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, wdtr_able); 5833 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, sdtr_able); 5834 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { 5835 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, ppr_able); 5836 } 5837 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, tagqng_able); 5838 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 5839 AdvWriteByteLram(iop_base, ASC_MC_NUMBER_OF_MAX_CMD + tid, 5840 max_cmd[tid]); 5841 } 5842 5843 return status; 5844 } 5845 5846 /* 5847 * adv_async_callback() - Adv Library asynchronous event callback function. 5848 */ adv_async_callback(ADV_DVC_VAR * adv_dvc_varp,uchar code)5849 static void adv_async_callback(ADV_DVC_VAR *adv_dvc_varp, uchar code) 5850 { 5851 switch (code) { 5852 case ADV_ASYNC_SCSI_BUS_RESET_DET: 5853 /* 5854 * The firmware detected a SCSI Bus reset. 5855 */ 5856 ASC_DBG(0, "ADV_ASYNC_SCSI_BUS_RESET_DET\n"); 5857 break; 5858 5859 case ADV_ASYNC_RDMA_FAILURE: 5860 /* 5861 * Handle RDMA failure by resetting the SCSI Bus and 5862 * possibly the chip if it is unresponsive. Log the error 5863 * with a unique code. 5864 */ 5865 ASC_DBG(0, "ADV_ASYNC_RDMA_FAILURE\n"); 5866 AdvResetChipAndSB(adv_dvc_varp); 5867 break; 5868 5869 case ADV_HOST_SCSI_BUS_RESET: 5870 /* 5871 * Host generated SCSI bus reset occurred. 5872 */ 5873 ASC_DBG(0, "ADV_HOST_SCSI_BUS_RESET\n"); 5874 break; 5875 5876 default: 5877 ASC_DBG(0, "unknown code 0x%x\n", code); 5878 break; 5879 } 5880 } 5881 5882 /* 5883 * adv_isr_callback() - Second Level Interrupt Handler called by AdvISR(). 5884 * 5885 * Callback function for the Wide SCSI Adv Library. 5886 */ adv_isr_callback(ADV_DVC_VAR * adv_dvc_varp,ADV_SCSI_REQ_Q * scsiqp)5887 static void adv_isr_callback(ADV_DVC_VAR *adv_dvc_varp, ADV_SCSI_REQ_Q *scsiqp) 5888 { 5889 struct asc_board *boardp = adv_dvc_varp->drv_ptr; 5890 adv_req_t *reqp; 5891 adv_sgblk_t *sgblkp; 5892 struct scsi_cmnd *scp; 5893 u32 resid_cnt; 5894 dma_addr_t sense_addr; 5895 5896 ASC_DBG(1, "adv_dvc_varp 0x%p, scsiqp 0x%p\n", 5897 adv_dvc_varp, scsiqp); 5898 ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); 5899 5900 /* 5901 * Get the adv_req_t structure for the command that has been 5902 * completed. The adv_req_t structure actually contains the 5903 * completed ADV_SCSI_REQ_Q structure. 5904 */ 5905 scp = scsi_host_find_tag(boardp->shost, scsiqp->srb_tag); 5906 5907 ASC_DBG(1, "scp 0x%p\n", scp); 5908 if (scp == NULL) { 5909 ASC_PRINT 5910 ("adv_isr_callback: scp is NULL; adv_req_t dropped.\n"); 5911 return; 5912 } 5913 ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); 5914 5915 reqp = (adv_req_t *)scp->host_scribble; 5916 ASC_DBG(1, "reqp 0x%lx\n", (ulong)reqp); 5917 if (reqp == NULL) { 5918 ASC_PRINT("adv_isr_callback: reqp is NULL\n"); 5919 return; 5920 } 5921 /* 5922 * Remove backreferences to avoid duplicate 5923 * command completions. 5924 */ 5925 scp->host_scribble = NULL; 5926 reqp->cmndp = NULL; 5927 5928 ASC_STATS(boardp->shost, callback); 5929 ASC_DBG(1, "shost 0x%p\n", boardp->shost); 5930 5931 sense_addr = le32_to_cpu(scsiqp->sense_addr); 5932 dma_unmap_single(boardp->dev, sense_addr, 5933 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); 5934 5935 /* 5936 * 'done_status' contains the command's ending status. 5937 */ 5938 scp->result = 0; 5939 switch (scsiqp->done_status) { 5940 case QD_NO_ERROR: 5941 ASC_DBG(2, "QD_NO_ERROR\n"); 5942 5943 /* 5944 * Check for an underrun condition. 5945 * 5946 * If there was no error and an underrun condition, then 5947 * then return the number of underrun bytes. 5948 */ 5949 resid_cnt = le32_to_cpu(scsiqp->data_cnt); 5950 if (scsi_bufflen(scp) != 0 && resid_cnt != 0 && 5951 resid_cnt <= scsi_bufflen(scp)) { 5952 ASC_DBG(1, "underrun condition %lu bytes\n", 5953 (ulong)resid_cnt); 5954 scsi_set_resid(scp, resid_cnt); 5955 } 5956 break; 5957 5958 case QD_WITH_ERROR: 5959 ASC_DBG(2, "QD_WITH_ERROR\n"); 5960 switch (scsiqp->host_status) { 5961 case QHSTA_NO_ERROR: 5962 set_status_byte(scp, scsiqp->scsi_status); 5963 if (scsiqp->scsi_status == SAM_STAT_CHECK_CONDITION) { 5964 ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); 5965 ASC_DBG_PRT_SENSE(2, scp->sense_buffer, 5966 SCSI_SENSE_BUFFERSIZE); 5967 } 5968 break; 5969 5970 default: 5971 /* Some other QHSTA error occurred. */ 5972 ASC_DBG(1, "host_status 0x%x\n", scsiqp->host_status); 5973 set_host_byte(scp, DID_BAD_TARGET); 5974 break; 5975 } 5976 break; 5977 5978 case QD_ABORTED_BY_HOST: 5979 ASC_DBG(1, "QD_ABORTED_BY_HOST\n"); 5980 set_status_byte(scp, scsiqp->scsi_status); 5981 set_host_byte(scp, DID_ABORT); 5982 break; 5983 5984 default: 5985 ASC_DBG(1, "done_status 0x%x\n", scsiqp->done_status); 5986 set_status_byte(scp, scsiqp->scsi_status); 5987 set_host_byte(scp, DID_ERROR); 5988 break; 5989 } 5990 5991 /* 5992 * If the 'init_tidmask' bit isn't already set for the target and the 5993 * current request finished normally, then set the bit for the target 5994 * to indicate that a device is present. 5995 */ 5996 if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && 5997 scsiqp->done_status == QD_NO_ERROR && 5998 scsiqp->host_status == QHSTA_NO_ERROR) { 5999 boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); 6000 } 6001 6002 asc_scsi_done(scp); 6003 6004 /* 6005 * Free all 'adv_sgblk_t' structures allocated for the request. 6006 */ 6007 while ((sgblkp = reqp->sgblkp) != NULL) { 6008 /* Remove 'sgblkp' from the request list. */ 6009 reqp->sgblkp = sgblkp->next_sgblkp; 6010 6011 dma_pool_free(boardp->adv_sgblk_pool, sgblkp, 6012 sgblkp->sg_addr); 6013 } 6014 6015 ASC_DBG(1, "done\n"); 6016 } 6017 6018 /* 6019 * Adv Library Interrupt Service Routine 6020 * 6021 * This function is called by a driver's interrupt service routine. 6022 * The function disables and re-enables interrupts. 6023 * 6024 * When a microcode idle command is completed, the ADV_DVC_VAR 6025 * 'idle_cmd_done' field is set to ADV_TRUE. 6026 * 6027 * Note: AdvISR() can be called when interrupts are disabled or even 6028 * when there is no hardware interrupt condition present. It will 6029 * always check for completed idle commands and microcode requests. 6030 * This is an important feature that shouldn't be changed because it 6031 * allows commands to be completed from polling mode loops. 6032 * 6033 * Return: 6034 * ADV_TRUE(1) - interrupt was pending 6035 * ADV_FALSE(0) - no interrupt was pending 6036 */ AdvISR(ADV_DVC_VAR * asc_dvc)6037 static int AdvISR(ADV_DVC_VAR *asc_dvc) 6038 { 6039 AdvPortAddr iop_base; 6040 uchar int_stat; 6041 ADV_CARR_T *free_carrp; 6042 __le32 irq_next_vpa; 6043 ADV_SCSI_REQ_Q *scsiq; 6044 adv_req_t *reqp; 6045 6046 iop_base = asc_dvc->iop_base; 6047 6048 /* Reading the register clears the interrupt. */ 6049 int_stat = AdvReadByteRegister(iop_base, IOPB_INTR_STATUS_REG); 6050 6051 if ((int_stat & (ADV_INTR_STATUS_INTRA | ADV_INTR_STATUS_INTRB | 6052 ADV_INTR_STATUS_INTRC)) == 0) { 6053 return ADV_FALSE; 6054 } 6055 6056 /* 6057 * Notify the driver of an asynchronous microcode condition by 6058 * calling the adv_async_callback function. The function 6059 * is passed the microcode ASC_MC_INTRB_CODE byte value. 6060 */ 6061 if (int_stat & ADV_INTR_STATUS_INTRB) { 6062 uchar intrb_code; 6063 6064 AdvReadByteLram(iop_base, ASC_MC_INTRB_CODE, intrb_code); 6065 6066 if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || 6067 asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { 6068 if (intrb_code == ADV_ASYNC_CARRIER_READY_FAILURE && 6069 asc_dvc->carr_pending_cnt != 0) { 6070 AdvWriteByteRegister(iop_base, IOPB_TICKLE, 6071 ADV_TICKLE_A); 6072 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { 6073 AdvWriteByteRegister(iop_base, 6074 IOPB_TICKLE, 6075 ADV_TICKLE_NOP); 6076 } 6077 } 6078 } 6079 6080 adv_async_callback(asc_dvc, intrb_code); 6081 } 6082 6083 /* 6084 * Check if the IRQ stopper carrier contains a completed request. 6085 */ 6086 while (((irq_next_vpa = 6087 le32_to_cpu(asc_dvc->irq_sp->next_vpa)) & ADV_RQ_DONE) != 0) { 6088 /* 6089 * Get a pointer to the newly completed ADV_SCSI_REQ_Q structure. 6090 * The RISC will have set 'areq_vpa' to a virtual address. 6091 * 6092 * The firmware will have copied the ADV_SCSI_REQ_Q.scsiq_ptr 6093 * field to the carrier ADV_CARR_T.areq_vpa field. The conversion 6094 * below complements the conversion of ADV_SCSI_REQ_Q.scsiq_ptr' 6095 * in AdvExeScsiQueue(). 6096 */ 6097 u32 pa_offset = le32_to_cpu(asc_dvc->irq_sp->areq_vpa); 6098 ASC_DBG(1, "irq_sp %p areq_vpa %u\n", 6099 asc_dvc->irq_sp, pa_offset); 6100 reqp = adv_get_reqp(asc_dvc, pa_offset); 6101 scsiq = &reqp->scsi_req_q; 6102 6103 /* 6104 * Request finished with good status and the queue was not 6105 * DMAed to host memory by the firmware. Set all status fields 6106 * to indicate good status. 6107 */ 6108 if ((irq_next_vpa & ADV_RQ_GOOD) != 0) { 6109 scsiq->done_status = QD_NO_ERROR; 6110 scsiq->host_status = scsiq->scsi_status = 0; 6111 scsiq->data_cnt = 0L; 6112 } 6113 6114 /* 6115 * Advance the stopper pointer to the next carrier 6116 * ignoring the lower four bits. Free the previous 6117 * stopper carrier. 6118 */ 6119 free_carrp = asc_dvc->irq_sp; 6120 asc_dvc->irq_sp = adv_get_carrier(asc_dvc, 6121 ADV_GET_CARRP(irq_next_vpa)); 6122 6123 free_carrp->next_vpa = asc_dvc->carr_freelist->carr_va; 6124 asc_dvc->carr_freelist = free_carrp; 6125 asc_dvc->carr_pending_cnt--; 6126 6127 /* 6128 * Clear request microcode control flag. 6129 */ 6130 scsiq->cntl = 0; 6131 6132 /* 6133 * Notify the driver of the completed request by passing 6134 * the ADV_SCSI_REQ_Q pointer to its callback function. 6135 */ 6136 adv_isr_callback(asc_dvc, scsiq); 6137 /* 6138 * Note: After the driver callback function is called, 'scsiq' 6139 * can no longer be referenced. 6140 * 6141 * Fall through and continue processing other completed 6142 * requests... 6143 */ 6144 } 6145 return ADV_TRUE; 6146 } 6147 AscSetLibErrorCode(ASC_DVC_VAR * asc_dvc,ushort err_code)6148 static int AscSetLibErrorCode(ASC_DVC_VAR *asc_dvc, ushort err_code) 6149 { 6150 if (asc_dvc->err_code == 0) { 6151 asc_dvc->err_code = err_code; 6152 AscWriteLramWord(asc_dvc->iop_base, ASCV_ASCDVC_ERR_CODE_W, 6153 err_code); 6154 } 6155 return err_code; 6156 } 6157 AscAckInterrupt(PortAddr iop_base)6158 static void AscAckInterrupt(PortAddr iop_base) 6159 { 6160 uchar host_flag; 6161 uchar risc_flag; 6162 ushort loop; 6163 6164 loop = 0; 6165 do { 6166 risc_flag = AscReadLramByte(iop_base, ASCV_RISC_FLAG_B); 6167 if (loop++ > 0x7FFF) { 6168 break; 6169 } 6170 } while ((risc_flag & ASC_RISC_FLAG_GEN_INT) != 0); 6171 host_flag = 6172 AscReadLramByte(iop_base, 6173 ASCV_HOST_FLAG_B) & (~ASC_HOST_FLAG_ACK_INT); 6174 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, 6175 (uchar)(host_flag | ASC_HOST_FLAG_ACK_INT)); 6176 AscSetChipStatus(iop_base, CIW_INT_ACK); 6177 loop = 0; 6178 while (AscGetChipStatus(iop_base) & CSW_INT_PENDING) { 6179 AscSetChipStatus(iop_base, CIW_INT_ACK); 6180 if (loop++ > 3) { 6181 break; 6182 } 6183 } 6184 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); 6185 } 6186 AscGetSynPeriodIndex(ASC_DVC_VAR * asc_dvc,uchar syn_time)6187 static uchar AscGetSynPeriodIndex(ASC_DVC_VAR *asc_dvc, uchar syn_time) 6188 { 6189 const uchar *period_table; 6190 int max_index; 6191 int min_index; 6192 int i; 6193 6194 period_table = asc_dvc->sdtr_period_tbl; 6195 max_index = (int)asc_dvc->max_sdtr_index; 6196 min_index = (int)asc_dvc->min_sdtr_index; 6197 if ((syn_time <= period_table[max_index])) { 6198 for (i = min_index; i < (max_index - 1); i++) { 6199 if (syn_time <= period_table[i]) { 6200 return (uchar)i; 6201 } 6202 } 6203 return (uchar)max_index; 6204 } else { 6205 return (uchar)(max_index + 1); 6206 } 6207 } 6208 6209 static uchar AscMsgOutSDTR(ASC_DVC_VAR * asc_dvc,uchar sdtr_period,uchar sdtr_offset)6210 AscMsgOutSDTR(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar sdtr_offset) 6211 { 6212 PortAddr iop_base = asc_dvc->iop_base; 6213 uchar sdtr_period_index = AscGetSynPeriodIndex(asc_dvc, sdtr_period); 6214 EXT_MSG sdtr_buf = { 6215 .msg_type = EXTENDED_MESSAGE, 6216 .msg_len = MS_SDTR_LEN, 6217 .msg_req = EXTENDED_SDTR, 6218 .xfer_period = sdtr_period, 6219 .req_ack_offset = sdtr_offset, 6220 }; 6221 sdtr_offset &= ASC_SYN_MAX_OFFSET; 6222 6223 if (sdtr_period_index <= asc_dvc->max_sdtr_index) { 6224 AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, 6225 (uchar *)&sdtr_buf, 6226 sizeof(EXT_MSG) >> 1); 6227 return ((sdtr_period_index << 4) | sdtr_offset); 6228 } else { 6229 sdtr_buf.req_ack_offset = 0; 6230 AscMemWordCopyPtrToLram(iop_base, ASCV_MSGOUT_BEG, 6231 (uchar *)&sdtr_buf, 6232 sizeof(EXT_MSG) >> 1); 6233 return 0; 6234 } 6235 } 6236 6237 static uchar AscCalSDTRData(ASC_DVC_VAR * asc_dvc,uchar sdtr_period,uchar syn_offset)6238 AscCalSDTRData(ASC_DVC_VAR *asc_dvc, uchar sdtr_period, uchar syn_offset) 6239 { 6240 uchar byte; 6241 uchar sdtr_period_ix; 6242 6243 sdtr_period_ix = AscGetSynPeriodIndex(asc_dvc, sdtr_period); 6244 if (sdtr_period_ix > asc_dvc->max_sdtr_index) 6245 return 0xFF; 6246 byte = (sdtr_period_ix << 4) | (syn_offset & ASC_SYN_MAX_OFFSET); 6247 return byte; 6248 } 6249 AscSetChipSynRegAtID(PortAddr iop_base,uchar id,uchar sdtr_data)6250 static bool AscSetChipSynRegAtID(PortAddr iop_base, uchar id, uchar sdtr_data) 6251 { 6252 ASC_SCSI_BIT_ID_TYPE org_id; 6253 int i; 6254 bool sta = true; 6255 6256 AscSetBank(iop_base, 1); 6257 org_id = AscReadChipDvcID(iop_base); 6258 for (i = 0; i <= ASC_MAX_TID; i++) { 6259 if (org_id == (0x01 << i)) 6260 break; 6261 } 6262 org_id = (ASC_SCSI_BIT_ID_TYPE) i; 6263 AscWriteChipDvcID(iop_base, id); 6264 if (AscReadChipDvcID(iop_base) == (0x01 << id)) { 6265 AscSetBank(iop_base, 0); 6266 AscSetChipSyn(iop_base, sdtr_data); 6267 if (AscGetChipSyn(iop_base) != sdtr_data) { 6268 sta = false; 6269 } 6270 } else { 6271 sta = false; 6272 } 6273 AscSetBank(iop_base, 1); 6274 AscWriteChipDvcID(iop_base, org_id); 6275 AscSetBank(iop_base, 0); 6276 return (sta); 6277 } 6278 AscSetChipSDTR(PortAddr iop_base,uchar sdtr_data,uchar tid_no)6279 static void AscSetChipSDTR(PortAddr iop_base, uchar sdtr_data, uchar tid_no) 6280 { 6281 AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); 6282 AscPutMCodeSDTRDoneAtID(iop_base, tid_no, sdtr_data); 6283 } 6284 AscIsrChipHalted(ASC_DVC_VAR * asc_dvc)6285 static void AscIsrChipHalted(ASC_DVC_VAR *asc_dvc) 6286 { 6287 EXT_MSG ext_msg; 6288 EXT_MSG out_msg; 6289 ushort halt_q_addr; 6290 bool sdtr_accept; 6291 ushort int_halt_code; 6292 ASC_SCSI_BIT_ID_TYPE scsi_busy; 6293 ASC_SCSI_BIT_ID_TYPE target_id; 6294 PortAddr iop_base; 6295 uchar tag_code; 6296 uchar q_status; 6297 uchar halt_qp; 6298 uchar sdtr_data; 6299 uchar target_ix; 6300 uchar q_cntl, tid_no; 6301 uchar cur_dvc_qng; 6302 uchar asyn_sdtr; 6303 uchar scsi_status; 6304 struct asc_board *boardp; 6305 6306 BUG_ON(!asc_dvc->drv_ptr); 6307 boardp = asc_dvc->drv_ptr; 6308 6309 iop_base = asc_dvc->iop_base; 6310 int_halt_code = AscReadLramWord(iop_base, ASCV_HALTCODE_W); 6311 6312 halt_qp = AscReadLramByte(iop_base, ASCV_CURCDB_B); 6313 halt_q_addr = ASC_QNO_TO_QADDR(halt_qp); 6314 target_ix = AscReadLramByte(iop_base, 6315 (ushort)(halt_q_addr + 6316 (ushort)ASC_SCSIQ_B_TARGET_IX)); 6317 q_cntl = AscReadLramByte(iop_base, 6318 (ushort)(halt_q_addr + (ushort)ASC_SCSIQ_B_CNTL)); 6319 tid_no = ASC_TIX_TO_TID(target_ix); 6320 target_id = (uchar)ASC_TID_TO_TARGET_ID(tid_no); 6321 if (asc_dvc->pci_fix_asyn_xfer & target_id) { 6322 asyn_sdtr = ASYN_SDTR_DATA_FIX_PCI_REV_AB; 6323 } else { 6324 asyn_sdtr = 0; 6325 } 6326 if (int_halt_code == ASC_HALT_DISABLE_ASYN_USE_SYN_FIX) { 6327 if (asc_dvc->pci_fix_asyn_xfer & target_id) { 6328 AscSetChipSDTR(iop_base, 0, tid_no); 6329 boardp->sdtr_data[tid_no] = 0; 6330 } 6331 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6332 return; 6333 } else if (int_halt_code == ASC_HALT_ENABLE_ASYN_USE_SYN_FIX) { 6334 if (asc_dvc->pci_fix_asyn_xfer & target_id) { 6335 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); 6336 boardp->sdtr_data[tid_no] = asyn_sdtr; 6337 } 6338 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6339 return; 6340 } else if (int_halt_code == ASC_HALT_EXTMSG_IN) { 6341 AscMemWordCopyPtrFromLram(iop_base, 6342 ASCV_MSGIN_BEG, 6343 (uchar *)&ext_msg, 6344 sizeof(EXT_MSG) >> 1); 6345 6346 if (ext_msg.msg_type == EXTENDED_MESSAGE && 6347 ext_msg.msg_req == EXTENDED_SDTR && 6348 ext_msg.msg_len == MS_SDTR_LEN) { 6349 sdtr_accept = true; 6350 if ((ext_msg.req_ack_offset > ASC_SYN_MAX_OFFSET)) { 6351 6352 sdtr_accept = false; 6353 ext_msg.req_ack_offset = ASC_SYN_MAX_OFFSET; 6354 } 6355 if ((ext_msg.xfer_period < 6356 asc_dvc->sdtr_period_tbl[asc_dvc->min_sdtr_index]) 6357 || (ext_msg.xfer_period > 6358 asc_dvc->sdtr_period_tbl[asc_dvc-> 6359 max_sdtr_index])) { 6360 sdtr_accept = false; 6361 ext_msg.xfer_period = 6362 asc_dvc->sdtr_period_tbl[asc_dvc-> 6363 min_sdtr_index]; 6364 } 6365 if (sdtr_accept) { 6366 sdtr_data = 6367 AscCalSDTRData(asc_dvc, ext_msg.xfer_period, 6368 ext_msg.req_ack_offset); 6369 if (sdtr_data == 0xFF) { 6370 6371 q_cntl |= QC_MSG_OUT; 6372 asc_dvc->init_sdtr &= ~target_id; 6373 asc_dvc->sdtr_done &= ~target_id; 6374 AscSetChipSDTR(iop_base, asyn_sdtr, 6375 tid_no); 6376 boardp->sdtr_data[tid_no] = asyn_sdtr; 6377 } 6378 } 6379 if (ext_msg.req_ack_offset == 0) { 6380 6381 q_cntl &= ~QC_MSG_OUT; 6382 asc_dvc->init_sdtr &= ~target_id; 6383 asc_dvc->sdtr_done &= ~target_id; 6384 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); 6385 } else { 6386 if (sdtr_accept && (q_cntl & QC_MSG_OUT)) { 6387 q_cntl &= ~QC_MSG_OUT; 6388 asc_dvc->sdtr_done |= target_id; 6389 asc_dvc->init_sdtr |= target_id; 6390 asc_dvc->pci_fix_asyn_xfer &= 6391 ~target_id; 6392 sdtr_data = 6393 AscCalSDTRData(asc_dvc, 6394 ext_msg.xfer_period, 6395 ext_msg. 6396 req_ack_offset); 6397 AscSetChipSDTR(iop_base, sdtr_data, 6398 tid_no); 6399 boardp->sdtr_data[tid_no] = sdtr_data; 6400 } else { 6401 q_cntl |= QC_MSG_OUT; 6402 AscMsgOutSDTR(asc_dvc, 6403 ext_msg.xfer_period, 6404 ext_msg.req_ack_offset); 6405 asc_dvc->pci_fix_asyn_xfer &= 6406 ~target_id; 6407 sdtr_data = 6408 AscCalSDTRData(asc_dvc, 6409 ext_msg.xfer_period, 6410 ext_msg. 6411 req_ack_offset); 6412 AscSetChipSDTR(iop_base, sdtr_data, 6413 tid_no); 6414 boardp->sdtr_data[tid_no] = sdtr_data; 6415 asc_dvc->sdtr_done |= target_id; 6416 asc_dvc->init_sdtr |= target_id; 6417 } 6418 } 6419 6420 AscWriteLramByte(iop_base, 6421 (ushort)(halt_q_addr + 6422 (ushort)ASC_SCSIQ_B_CNTL), 6423 q_cntl); 6424 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6425 return; 6426 } else if (ext_msg.msg_type == EXTENDED_MESSAGE && 6427 ext_msg.msg_req == EXTENDED_WDTR && 6428 ext_msg.msg_len == MS_WDTR_LEN) { 6429 6430 ext_msg.wdtr_width = 0; 6431 AscMemWordCopyPtrToLram(iop_base, 6432 ASCV_MSGOUT_BEG, 6433 (uchar *)&ext_msg, 6434 sizeof(EXT_MSG) >> 1); 6435 q_cntl |= QC_MSG_OUT; 6436 AscWriteLramByte(iop_base, 6437 (ushort)(halt_q_addr + 6438 (ushort)ASC_SCSIQ_B_CNTL), 6439 q_cntl); 6440 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6441 return; 6442 } else { 6443 6444 ext_msg.msg_type = MESSAGE_REJECT; 6445 AscMemWordCopyPtrToLram(iop_base, 6446 ASCV_MSGOUT_BEG, 6447 (uchar *)&ext_msg, 6448 sizeof(EXT_MSG) >> 1); 6449 q_cntl |= QC_MSG_OUT; 6450 AscWriteLramByte(iop_base, 6451 (ushort)(halt_q_addr + 6452 (ushort)ASC_SCSIQ_B_CNTL), 6453 q_cntl); 6454 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6455 return; 6456 } 6457 } else if (int_halt_code == ASC_HALT_CHK_CONDITION) { 6458 6459 q_cntl |= QC_REQ_SENSE; 6460 6461 if ((asc_dvc->init_sdtr & target_id) != 0) { 6462 6463 asc_dvc->sdtr_done &= ~target_id; 6464 6465 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); 6466 q_cntl |= QC_MSG_OUT; 6467 AscMsgOutSDTR(asc_dvc, 6468 asc_dvc-> 6469 sdtr_period_tbl[(sdtr_data >> 4) & 6470 (uchar)(asc_dvc-> 6471 max_sdtr_index - 6472 1)], 6473 (uchar)(sdtr_data & (uchar) 6474 ASC_SYN_MAX_OFFSET)); 6475 } 6476 6477 AscWriteLramByte(iop_base, 6478 (ushort)(halt_q_addr + 6479 (ushort)ASC_SCSIQ_B_CNTL), q_cntl); 6480 6481 tag_code = AscReadLramByte(iop_base, 6482 (ushort)(halt_q_addr + (ushort) 6483 ASC_SCSIQ_B_TAG_CODE)); 6484 tag_code &= 0xDC; 6485 if ((asc_dvc->pci_fix_asyn_xfer & target_id) 6486 && !(asc_dvc->pci_fix_asyn_xfer_always & target_id) 6487 ) { 6488 6489 tag_code |= (ASC_TAG_FLAG_DISABLE_DISCONNECT 6490 | ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX); 6491 6492 } 6493 AscWriteLramByte(iop_base, 6494 (ushort)(halt_q_addr + 6495 (ushort)ASC_SCSIQ_B_TAG_CODE), 6496 tag_code); 6497 6498 q_status = AscReadLramByte(iop_base, 6499 (ushort)(halt_q_addr + (ushort) 6500 ASC_SCSIQ_B_STATUS)); 6501 q_status |= (QS_READY | QS_BUSY); 6502 AscWriteLramByte(iop_base, 6503 (ushort)(halt_q_addr + 6504 (ushort)ASC_SCSIQ_B_STATUS), 6505 q_status); 6506 6507 scsi_busy = AscReadLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B); 6508 scsi_busy &= ~target_id; 6509 AscWriteLramByte(iop_base, (ushort)ASCV_SCSIBUSY_B, scsi_busy); 6510 6511 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6512 return; 6513 } else if (int_halt_code == ASC_HALT_SDTR_REJECTED) { 6514 6515 AscMemWordCopyPtrFromLram(iop_base, 6516 ASCV_MSGOUT_BEG, 6517 (uchar *)&out_msg, 6518 sizeof(EXT_MSG) >> 1); 6519 6520 if ((out_msg.msg_type == EXTENDED_MESSAGE) && 6521 (out_msg.msg_len == MS_SDTR_LEN) && 6522 (out_msg.msg_req == EXTENDED_SDTR)) { 6523 6524 asc_dvc->init_sdtr &= ~target_id; 6525 asc_dvc->sdtr_done &= ~target_id; 6526 AscSetChipSDTR(iop_base, asyn_sdtr, tid_no); 6527 boardp->sdtr_data[tid_no] = asyn_sdtr; 6528 } 6529 q_cntl &= ~QC_MSG_OUT; 6530 AscWriteLramByte(iop_base, 6531 (ushort)(halt_q_addr + 6532 (ushort)ASC_SCSIQ_B_CNTL), q_cntl); 6533 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6534 return; 6535 } else if (int_halt_code == ASC_HALT_SS_QUEUE_FULL) { 6536 6537 scsi_status = AscReadLramByte(iop_base, 6538 (ushort)((ushort)halt_q_addr + 6539 (ushort) 6540 ASC_SCSIQ_SCSI_STATUS)); 6541 cur_dvc_qng = 6542 AscReadLramByte(iop_base, 6543 (ushort)((ushort)ASC_QADR_BEG + 6544 (ushort)target_ix)); 6545 if ((cur_dvc_qng > 0) && (asc_dvc->cur_dvc_qng[tid_no] > 0)) { 6546 6547 scsi_busy = AscReadLramByte(iop_base, 6548 (ushort)ASCV_SCSIBUSY_B); 6549 scsi_busy |= target_id; 6550 AscWriteLramByte(iop_base, 6551 (ushort)ASCV_SCSIBUSY_B, scsi_busy); 6552 asc_dvc->queue_full_or_busy |= target_id; 6553 6554 if (scsi_status == SAM_STAT_TASK_SET_FULL) { 6555 if (cur_dvc_qng > ASC_MIN_TAGGED_CMD) { 6556 cur_dvc_qng -= 1; 6557 asc_dvc->max_dvc_qng[tid_no] = 6558 cur_dvc_qng; 6559 6560 AscWriteLramByte(iop_base, 6561 (ushort)((ushort) 6562 ASCV_MAX_DVC_QNG_BEG 6563 + (ushort) 6564 tid_no), 6565 cur_dvc_qng); 6566 6567 /* 6568 * Set the device queue depth to the 6569 * number of active requests when the 6570 * QUEUE FULL condition was encountered. 6571 */ 6572 boardp->queue_full |= target_id; 6573 boardp->queue_full_cnt[tid_no] = 6574 cur_dvc_qng; 6575 } 6576 } 6577 } 6578 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0); 6579 return; 6580 } 6581 return; 6582 } 6583 6584 /* 6585 * void 6586 * DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) 6587 * 6588 * Calling/Exit State: 6589 * none 6590 * 6591 * Description: 6592 * Input an ASC_QDONE_INFO structure from the chip 6593 */ 6594 static void DvcGetQinfo(PortAddr iop_base,ushort s_addr,uchar * inbuf,int words)6595 DvcGetQinfo(PortAddr iop_base, ushort s_addr, uchar *inbuf, int words) 6596 { 6597 int i; 6598 ushort word; 6599 6600 AscSetChipLramAddr(iop_base, s_addr); 6601 for (i = 0; i < 2 * words; i += 2) { 6602 if (i == 10) { 6603 continue; 6604 } 6605 word = inpw(iop_base + IOP_RAM_DATA); 6606 inbuf[i] = word & 0xff; 6607 inbuf[i + 1] = (word >> 8) & 0xff; 6608 } 6609 ASC_DBG_PRT_HEX(2, "DvcGetQinfo", inbuf, 2 * words); 6610 } 6611 6612 static uchar _AscCopyLramScsiDoneQ(PortAddr iop_base,ushort q_addr,ASC_QDONE_INFO * scsiq,unsigned int max_dma_count)6613 _AscCopyLramScsiDoneQ(PortAddr iop_base, 6614 ushort q_addr, 6615 ASC_QDONE_INFO *scsiq, unsigned int max_dma_count) 6616 { 6617 ushort _val; 6618 uchar sg_queue_cnt; 6619 6620 DvcGetQinfo(iop_base, 6621 q_addr + ASC_SCSIQ_DONE_INFO_BEG, 6622 (uchar *)scsiq, 6623 (sizeof(ASC_SCSIQ_2) + sizeof(ASC_SCSIQ_3)) / 2); 6624 6625 _val = AscReadLramWord(iop_base, 6626 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS)); 6627 scsiq->q_status = (uchar)_val; 6628 scsiq->q_no = (uchar)(_val >> 8); 6629 _val = AscReadLramWord(iop_base, 6630 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_CNTL)); 6631 scsiq->cntl = (uchar)_val; 6632 sg_queue_cnt = (uchar)(_val >> 8); 6633 _val = AscReadLramWord(iop_base, 6634 (ushort)(q_addr + 6635 (ushort)ASC_SCSIQ_B_SENSE_LEN)); 6636 scsiq->sense_len = (uchar)_val; 6637 scsiq->extra_bytes = (uchar)(_val >> 8); 6638 6639 /* 6640 * Read high word of remain bytes from alternate location. 6641 */ 6642 scsiq->remain_bytes = (((u32)AscReadLramWord(iop_base, 6643 (ushort)(q_addr + 6644 (ushort) 6645 ASC_SCSIQ_W_ALT_DC1))) 6646 << 16); 6647 /* 6648 * Read low word of remain bytes from original location. 6649 */ 6650 scsiq->remain_bytes += AscReadLramWord(iop_base, 6651 (ushort)(q_addr + (ushort) 6652 ASC_SCSIQ_DW_REMAIN_XFER_CNT)); 6653 6654 scsiq->remain_bytes &= max_dma_count; 6655 return sg_queue_cnt; 6656 } 6657 6658 /* 6659 * asc_isr_callback() - Second Level Interrupt Handler called by AscISR(). 6660 * 6661 * Interrupt callback function for the Narrow SCSI Asc Library. 6662 */ asc_isr_callback(ASC_DVC_VAR * asc_dvc_varp,ASC_QDONE_INFO * qdonep)6663 static void asc_isr_callback(ASC_DVC_VAR *asc_dvc_varp, ASC_QDONE_INFO *qdonep) 6664 { 6665 struct asc_board *boardp = asc_dvc_varp->drv_ptr; 6666 u32 srb_tag; 6667 struct scsi_cmnd *scp; 6668 6669 ASC_DBG(1, "asc_dvc_varp 0x%p, qdonep 0x%p\n", asc_dvc_varp, qdonep); 6670 ASC_DBG_PRT_ASC_QDONE_INFO(2, qdonep); 6671 6672 /* 6673 * Decrease the srb_tag by 1 to find the SCSI command 6674 */ 6675 srb_tag = qdonep->d2.srb_tag - 1; 6676 scp = scsi_host_find_tag(boardp->shost, srb_tag); 6677 if (!scp) 6678 return; 6679 6680 ASC_DBG_PRT_CDB(2, scp->cmnd, scp->cmd_len); 6681 6682 ASC_STATS(boardp->shost, callback); 6683 6684 dma_unmap_single(boardp->dev, scp->SCp.dma_handle, 6685 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); 6686 /* 6687 * 'qdonep' contains the command's ending status. 6688 */ 6689 scp->result = 0; 6690 switch (qdonep->d3.done_stat) { 6691 case QD_NO_ERROR: 6692 ASC_DBG(2, "QD_NO_ERROR\n"); 6693 6694 /* 6695 * Check for an underrun condition. 6696 * 6697 * If there was no error and an underrun condition, then 6698 * return the number of underrun bytes. 6699 */ 6700 if (scsi_bufflen(scp) != 0 && qdonep->remain_bytes != 0 && 6701 qdonep->remain_bytes <= scsi_bufflen(scp)) { 6702 ASC_DBG(1, "underrun condition %u bytes\n", 6703 (unsigned)qdonep->remain_bytes); 6704 scsi_set_resid(scp, qdonep->remain_bytes); 6705 } 6706 break; 6707 6708 case QD_WITH_ERROR: 6709 ASC_DBG(2, "QD_WITH_ERROR\n"); 6710 switch (qdonep->d3.host_stat) { 6711 case QHSTA_NO_ERROR: 6712 set_status_byte(scp, qdonep->d3.scsi_stat); 6713 if (qdonep->d3.scsi_stat == SAM_STAT_CHECK_CONDITION) { 6714 ASC_DBG(2, "SAM_STAT_CHECK_CONDITION\n"); 6715 ASC_DBG_PRT_SENSE(2, scp->sense_buffer, 6716 SCSI_SENSE_BUFFERSIZE); 6717 } 6718 break; 6719 6720 default: 6721 /* QHSTA error occurred */ 6722 ASC_DBG(1, "host_stat 0x%x\n", qdonep->d3.host_stat); 6723 set_host_byte(scp, DID_BAD_TARGET); 6724 break; 6725 } 6726 break; 6727 6728 case QD_ABORTED_BY_HOST: 6729 ASC_DBG(1, "QD_ABORTED_BY_HOST\n"); 6730 set_status_byte(scp, qdonep->d3.scsi_stat); 6731 set_host_byte(scp, DID_ABORT); 6732 break; 6733 6734 default: 6735 ASC_DBG(1, "done_stat 0x%x\n", qdonep->d3.done_stat); 6736 set_status_byte(scp, qdonep->d3.scsi_stat); 6737 set_host_byte(scp, DID_ERROR); 6738 break; 6739 } 6740 6741 /* 6742 * If the 'init_tidmask' bit isn't already set for the target and the 6743 * current request finished normally, then set the bit for the target 6744 * to indicate that a device is present. 6745 */ 6746 if ((boardp->init_tidmask & ADV_TID_TO_TIDMASK(scp->device->id)) == 0 && 6747 qdonep->d3.done_stat == QD_NO_ERROR && 6748 qdonep->d3.host_stat == QHSTA_NO_ERROR) { 6749 boardp->init_tidmask |= ADV_TID_TO_TIDMASK(scp->device->id); 6750 } 6751 6752 asc_scsi_done(scp); 6753 } 6754 AscIsrQDone(ASC_DVC_VAR * asc_dvc)6755 static int AscIsrQDone(ASC_DVC_VAR *asc_dvc) 6756 { 6757 uchar next_qp; 6758 uchar n_q_used; 6759 uchar sg_list_qp; 6760 uchar sg_queue_cnt; 6761 uchar q_cnt; 6762 uchar done_q_tail; 6763 uchar tid_no; 6764 ASC_SCSI_BIT_ID_TYPE scsi_busy; 6765 ASC_SCSI_BIT_ID_TYPE target_id; 6766 PortAddr iop_base; 6767 ushort q_addr; 6768 ushort sg_q_addr; 6769 uchar cur_target_qng; 6770 ASC_QDONE_INFO scsiq_buf; 6771 ASC_QDONE_INFO *scsiq; 6772 bool false_overrun; 6773 6774 iop_base = asc_dvc->iop_base; 6775 n_q_used = 1; 6776 scsiq = (ASC_QDONE_INFO *)&scsiq_buf; 6777 done_q_tail = (uchar)AscGetVarDoneQTail(iop_base); 6778 q_addr = ASC_QNO_TO_QADDR(done_q_tail); 6779 next_qp = AscReadLramByte(iop_base, 6780 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_FWD)); 6781 if (next_qp != ASC_QLINK_END) { 6782 AscPutVarDoneQTail(iop_base, next_qp); 6783 q_addr = ASC_QNO_TO_QADDR(next_qp); 6784 sg_queue_cnt = _AscCopyLramScsiDoneQ(iop_base, q_addr, scsiq, 6785 asc_dvc->max_dma_count); 6786 AscWriteLramByte(iop_base, 6787 (ushort)(q_addr + 6788 (ushort)ASC_SCSIQ_B_STATUS), 6789 (uchar)(scsiq-> 6790 q_status & (uchar)~(QS_READY | 6791 QS_ABORTED))); 6792 tid_no = ASC_TIX_TO_TID(scsiq->d2.target_ix); 6793 target_id = ASC_TIX_TO_TARGET_ID(scsiq->d2.target_ix); 6794 if ((scsiq->cntl & QC_SG_HEAD) != 0) { 6795 sg_q_addr = q_addr; 6796 sg_list_qp = next_qp; 6797 for (q_cnt = 0; q_cnt < sg_queue_cnt; q_cnt++) { 6798 sg_list_qp = AscReadLramByte(iop_base, 6799 (ushort)(sg_q_addr 6800 + (ushort) 6801 ASC_SCSIQ_B_FWD)); 6802 sg_q_addr = ASC_QNO_TO_QADDR(sg_list_qp); 6803 if (sg_list_qp == ASC_QLINK_END) { 6804 AscSetLibErrorCode(asc_dvc, 6805 ASCQ_ERR_SG_Q_LINKS); 6806 scsiq->d3.done_stat = QD_WITH_ERROR; 6807 scsiq->d3.host_stat = 6808 QHSTA_D_QDONE_SG_LIST_CORRUPTED; 6809 goto FATAL_ERR_QDONE; 6810 } 6811 AscWriteLramByte(iop_base, 6812 (ushort)(sg_q_addr + (ushort) 6813 ASC_SCSIQ_B_STATUS), 6814 QS_FREE); 6815 } 6816 n_q_used = sg_queue_cnt + 1; 6817 AscPutVarDoneQTail(iop_base, sg_list_qp); 6818 } 6819 if (asc_dvc->queue_full_or_busy & target_id) { 6820 cur_target_qng = AscReadLramByte(iop_base, 6821 (ushort)((ushort) 6822 ASC_QADR_BEG 6823 + (ushort) 6824 scsiq->d2. 6825 target_ix)); 6826 if (cur_target_qng < asc_dvc->max_dvc_qng[tid_no]) { 6827 scsi_busy = AscReadLramByte(iop_base, (ushort) 6828 ASCV_SCSIBUSY_B); 6829 scsi_busy &= ~target_id; 6830 AscWriteLramByte(iop_base, 6831 (ushort)ASCV_SCSIBUSY_B, 6832 scsi_busy); 6833 asc_dvc->queue_full_or_busy &= ~target_id; 6834 } 6835 } 6836 if (asc_dvc->cur_total_qng >= n_q_used) { 6837 asc_dvc->cur_total_qng -= n_q_used; 6838 if (asc_dvc->cur_dvc_qng[tid_no] != 0) { 6839 asc_dvc->cur_dvc_qng[tid_no]--; 6840 } 6841 } else { 6842 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CUR_QNG); 6843 scsiq->d3.done_stat = QD_WITH_ERROR; 6844 goto FATAL_ERR_QDONE; 6845 } 6846 if ((scsiq->d2.srb_tag == 0UL) || 6847 ((scsiq->q_status & QS_ABORTED) != 0)) { 6848 return (0x11); 6849 } else if (scsiq->q_status == QS_DONE) { 6850 /* 6851 * This is also curious. 6852 * false_overrun will _always_ be set to 'false' 6853 */ 6854 false_overrun = false; 6855 if (scsiq->extra_bytes != 0) { 6856 scsiq->remain_bytes += scsiq->extra_bytes; 6857 } 6858 if (scsiq->d3.done_stat == QD_WITH_ERROR) { 6859 if (scsiq->d3.host_stat == 6860 QHSTA_M_DATA_OVER_RUN) { 6861 if ((scsiq-> 6862 cntl & (QC_DATA_IN | QC_DATA_OUT)) 6863 == 0) { 6864 scsiq->d3.done_stat = 6865 QD_NO_ERROR; 6866 scsiq->d3.host_stat = 6867 QHSTA_NO_ERROR; 6868 } else if (false_overrun) { 6869 scsiq->d3.done_stat = 6870 QD_NO_ERROR; 6871 scsiq->d3.host_stat = 6872 QHSTA_NO_ERROR; 6873 } 6874 } else if (scsiq->d3.host_stat == 6875 QHSTA_M_HUNG_REQ_SCSI_BUS_RESET) { 6876 AscStopChip(iop_base); 6877 AscSetChipControl(iop_base, 6878 (uchar)(CC_SCSI_RESET 6879 | CC_HALT)); 6880 udelay(60); 6881 AscSetChipControl(iop_base, CC_HALT); 6882 AscSetChipStatus(iop_base, 6883 CIW_CLR_SCSI_RESET_INT); 6884 AscSetChipStatus(iop_base, 0); 6885 AscSetChipControl(iop_base, 0); 6886 } 6887 } 6888 if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { 6889 asc_isr_callback(asc_dvc, scsiq); 6890 } else { 6891 if ((AscReadLramByte(iop_base, 6892 (ushort)(q_addr + (ushort) 6893 ASC_SCSIQ_CDB_BEG)) 6894 == START_STOP)) { 6895 asc_dvc->unit_not_ready &= ~target_id; 6896 if (scsiq->d3.done_stat != QD_NO_ERROR) { 6897 asc_dvc->start_motor &= 6898 ~target_id; 6899 } 6900 } 6901 } 6902 return (1); 6903 } else { 6904 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_Q_STATUS); 6905 FATAL_ERR_QDONE: 6906 if ((scsiq->cntl & QC_NO_CALLBACK) == 0) { 6907 asc_isr_callback(asc_dvc, scsiq); 6908 } 6909 return (0x80); 6910 } 6911 } 6912 return (0); 6913 } 6914 AscISR(ASC_DVC_VAR * asc_dvc)6915 static int AscISR(ASC_DVC_VAR *asc_dvc) 6916 { 6917 ASC_CS_TYPE chipstat; 6918 PortAddr iop_base; 6919 ushort saved_ram_addr; 6920 uchar ctrl_reg; 6921 uchar saved_ctrl_reg; 6922 int int_pending; 6923 int status; 6924 uchar host_flag; 6925 6926 iop_base = asc_dvc->iop_base; 6927 int_pending = ASC_FALSE; 6928 6929 if (AscIsIntPending(iop_base) == 0) 6930 return int_pending; 6931 6932 if ((asc_dvc->init_state & ASC_INIT_STATE_END_LOAD_MC) == 0) { 6933 return ASC_ERROR; 6934 } 6935 if (asc_dvc->in_critical_cnt != 0) { 6936 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_ON_CRITICAL); 6937 return ASC_ERROR; 6938 } 6939 if (asc_dvc->is_in_int) { 6940 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_ISR_RE_ENTRY); 6941 return ASC_ERROR; 6942 } 6943 asc_dvc->is_in_int = true; 6944 ctrl_reg = AscGetChipControl(iop_base); 6945 saved_ctrl_reg = ctrl_reg & (~(CC_SCSI_RESET | CC_CHIP_RESET | 6946 CC_SINGLE_STEP | CC_DIAG | CC_TEST)); 6947 chipstat = AscGetChipStatus(iop_base); 6948 if (chipstat & CSW_SCSI_RESET_LATCH) { 6949 if (!(asc_dvc->bus_type & (ASC_IS_VL | ASC_IS_EISA))) { 6950 int i = 10; 6951 int_pending = ASC_TRUE; 6952 asc_dvc->sdtr_done = 0; 6953 saved_ctrl_reg &= (uchar)(~CC_HALT); 6954 while ((AscGetChipStatus(iop_base) & 6955 CSW_SCSI_RESET_ACTIVE) && (i-- > 0)) { 6956 mdelay(100); 6957 } 6958 AscSetChipControl(iop_base, (CC_CHIP_RESET | CC_HALT)); 6959 AscSetChipControl(iop_base, CC_HALT); 6960 AscSetChipStatus(iop_base, CIW_CLR_SCSI_RESET_INT); 6961 AscSetChipStatus(iop_base, 0); 6962 chipstat = AscGetChipStatus(iop_base); 6963 } 6964 } 6965 saved_ram_addr = AscGetChipLramAddr(iop_base); 6966 host_flag = AscReadLramByte(iop_base, 6967 ASCV_HOST_FLAG_B) & 6968 (uchar)(~ASC_HOST_FLAG_IN_ISR); 6969 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, 6970 (uchar)(host_flag | (uchar)ASC_HOST_FLAG_IN_ISR)); 6971 if ((chipstat & CSW_INT_PENDING) || (int_pending)) { 6972 AscAckInterrupt(iop_base); 6973 int_pending = ASC_TRUE; 6974 if ((chipstat & CSW_HALTED) && (ctrl_reg & CC_SINGLE_STEP)) { 6975 AscIsrChipHalted(asc_dvc); 6976 saved_ctrl_reg &= (uchar)(~CC_HALT); 6977 } else { 6978 if ((asc_dvc->dvc_cntl & ASC_CNTL_INT_MULTI_Q) != 0) { 6979 while (((status = 6980 AscIsrQDone(asc_dvc)) & 0x01) != 0) { 6981 } 6982 } else { 6983 do { 6984 if ((status = 6985 AscIsrQDone(asc_dvc)) == 1) { 6986 break; 6987 } 6988 } while (status == 0x11); 6989 } 6990 if ((status & 0x80) != 0) 6991 int_pending = ASC_ERROR; 6992 } 6993 } 6994 AscWriteLramByte(iop_base, ASCV_HOST_FLAG_B, host_flag); 6995 AscSetChipLramAddr(iop_base, saved_ram_addr); 6996 AscSetChipControl(iop_base, saved_ctrl_reg); 6997 asc_dvc->is_in_int = false; 6998 return int_pending; 6999 } 7000 7001 /* 7002 * advansys_reset() 7003 * 7004 * Reset the host associated with the command 'scp'. 7005 * 7006 * This function runs its own thread. Interrupts must be blocked but 7007 * sleeping is allowed and no locking other than for host structures is 7008 * required. Returns SUCCESS or FAILED. 7009 */ advansys_reset(struct scsi_cmnd * scp)7010 static int advansys_reset(struct scsi_cmnd *scp) 7011 { 7012 struct Scsi_Host *shost = scp->device->host; 7013 struct asc_board *boardp = shost_priv(shost); 7014 unsigned long flags; 7015 int status; 7016 int ret = SUCCESS; 7017 7018 ASC_DBG(1, "0x%p\n", scp); 7019 7020 ASC_STATS(shost, reset); 7021 7022 scmd_printk(KERN_INFO, scp, "SCSI host reset started...\n"); 7023 7024 if (ASC_NARROW_BOARD(boardp)) { 7025 ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; 7026 7027 /* Reset the chip and SCSI bus. */ 7028 ASC_DBG(1, "before AscInitAsc1000Driver()\n"); 7029 status = AscInitAsc1000Driver(asc_dvc); 7030 7031 /* Refer to ASC_IERR_* definitions for meaning of 'err_code'. */ 7032 if (asc_dvc->err_code || !asc_dvc->overrun_dma) { 7033 scmd_printk(KERN_INFO, scp, "SCSI host reset error: " 7034 "0x%x, status: 0x%x\n", asc_dvc->err_code, 7035 status); 7036 ret = FAILED; 7037 } else if (status) { 7038 scmd_printk(KERN_INFO, scp, "SCSI host reset warning: " 7039 "0x%x\n", status); 7040 } else { 7041 scmd_printk(KERN_INFO, scp, "SCSI host reset " 7042 "successful\n"); 7043 } 7044 7045 ASC_DBG(1, "after AscInitAsc1000Driver()\n"); 7046 } else { 7047 /* 7048 * If the suggest reset bus flags are set, then reset the bus. 7049 * Otherwise only reset the device. 7050 */ 7051 ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; 7052 7053 /* 7054 * Reset the chip and SCSI bus. 7055 */ 7056 ASC_DBG(1, "before AdvResetChipAndSB()\n"); 7057 switch (AdvResetChipAndSB(adv_dvc)) { 7058 case ASC_TRUE: 7059 scmd_printk(KERN_INFO, scp, "SCSI host reset " 7060 "successful\n"); 7061 break; 7062 case ASC_FALSE: 7063 default: 7064 scmd_printk(KERN_INFO, scp, "SCSI host reset error\n"); 7065 ret = FAILED; 7066 break; 7067 } 7068 spin_lock_irqsave(shost->host_lock, flags); 7069 AdvISR(adv_dvc); 7070 spin_unlock_irqrestore(shost->host_lock, flags); 7071 } 7072 7073 ASC_DBG(1, "ret %d\n", ret); 7074 7075 return ret; 7076 } 7077 7078 /* 7079 * advansys_biosparam() 7080 * 7081 * Translate disk drive geometry if the "BIOS greater than 1 GB" 7082 * support is enabled for a drive. 7083 * 7084 * ip (information pointer) is an int array with the following definition: 7085 * ip[0]: heads 7086 * ip[1]: sectors 7087 * ip[2]: cylinders 7088 */ 7089 static int advansys_biosparam(struct scsi_device * sdev,struct block_device * bdev,sector_t capacity,int ip[])7090 advansys_biosparam(struct scsi_device *sdev, struct block_device *bdev, 7091 sector_t capacity, int ip[]) 7092 { 7093 struct asc_board *boardp = shost_priv(sdev->host); 7094 7095 ASC_DBG(1, "begin\n"); 7096 ASC_STATS(sdev->host, biosparam); 7097 if (ASC_NARROW_BOARD(boardp)) { 7098 if ((boardp->dvc_var.asc_dvc_var.dvc_cntl & 7099 ASC_CNTL_BIOS_GT_1GB) && capacity > 0x200000) { 7100 ip[0] = 255; 7101 ip[1] = 63; 7102 } else { 7103 ip[0] = 64; 7104 ip[1] = 32; 7105 } 7106 } else { 7107 if ((boardp->dvc_var.adv_dvc_var.bios_ctrl & 7108 BIOS_CTRL_EXTENDED_XLAT) && capacity > 0x200000) { 7109 ip[0] = 255; 7110 ip[1] = 63; 7111 } else { 7112 ip[0] = 64; 7113 ip[1] = 32; 7114 } 7115 } 7116 ip[2] = (unsigned long)capacity / (ip[0] * ip[1]); 7117 ASC_DBG(1, "end\n"); 7118 return 0; 7119 } 7120 7121 /* 7122 * First-level interrupt handler. 7123 * 7124 * 'dev_id' is a pointer to the interrupting adapter's Scsi_Host. 7125 */ advansys_interrupt(int irq,void * dev_id)7126 static irqreturn_t advansys_interrupt(int irq, void *dev_id) 7127 { 7128 struct Scsi_Host *shost = dev_id; 7129 struct asc_board *boardp = shost_priv(shost); 7130 irqreturn_t result = IRQ_NONE; 7131 unsigned long flags; 7132 7133 ASC_DBG(2, "boardp 0x%p\n", boardp); 7134 spin_lock_irqsave(shost->host_lock, flags); 7135 if (ASC_NARROW_BOARD(boardp)) { 7136 if (AscIsIntPending(shost->io_port)) { 7137 result = IRQ_HANDLED; 7138 ASC_STATS(shost, interrupt); 7139 ASC_DBG(1, "before AscISR()\n"); 7140 AscISR(&boardp->dvc_var.asc_dvc_var); 7141 } 7142 } else { 7143 ASC_DBG(1, "before AdvISR()\n"); 7144 if (AdvISR(&boardp->dvc_var.adv_dvc_var)) { 7145 result = IRQ_HANDLED; 7146 ASC_STATS(shost, interrupt); 7147 } 7148 } 7149 spin_unlock_irqrestore(shost->host_lock, flags); 7150 7151 ASC_DBG(1, "end\n"); 7152 return result; 7153 } 7154 AscHostReqRiscHalt(PortAddr iop_base)7155 static bool AscHostReqRiscHalt(PortAddr iop_base) 7156 { 7157 int count = 0; 7158 bool sta = false; 7159 uchar saved_stop_code; 7160 7161 if (AscIsChipHalted(iop_base)) 7162 return true; 7163 saved_stop_code = AscReadLramByte(iop_base, ASCV_STOP_CODE_B); 7164 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 7165 ASC_STOP_HOST_REQ_RISC_HALT | ASC_STOP_REQ_RISC_STOP); 7166 do { 7167 if (AscIsChipHalted(iop_base)) { 7168 sta = true; 7169 break; 7170 } 7171 mdelay(100); 7172 } while (count++ < 20); 7173 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, saved_stop_code); 7174 return sta; 7175 } 7176 7177 static bool AscSetRunChipSynRegAtID(PortAddr iop_base,uchar tid_no,uchar sdtr_data)7178 AscSetRunChipSynRegAtID(PortAddr iop_base, uchar tid_no, uchar sdtr_data) 7179 { 7180 bool sta = false; 7181 7182 if (AscHostReqRiscHalt(iop_base)) { 7183 sta = AscSetChipSynRegAtID(iop_base, tid_no, sdtr_data); 7184 AscStartChip(iop_base); 7185 } 7186 return sta; 7187 } 7188 AscAsyncFix(ASC_DVC_VAR * asc_dvc,struct scsi_device * sdev)7189 static void AscAsyncFix(ASC_DVC_VAR *asc_dvc, struct scsi_device *sdev) 7190 { 7191 char type = sdev->type; 7192 ASC_SCSI_BIT_ID_TYPE tid_bits = 1 << sdev->id; 7193 7194 if (!(asc_dvc->bug_fix_cntl & ASC_BUG_FIX_ASYN_USE_SYN)) 7195 return; 7196 if (asc_dvc->init_sdtr & tid_bits) 7197 return; 7198 7199 if ((type == TYPE_ROM) && (strncmp(sdev->vendor, "HP ", 3) == 0)) 7200 asc_dvc->pci_fix_asyn_xfer_always |= tid_bits; 7201 7202 asc_dvc->pci_fix_asyn_xfer |= tid_bits; 7203 if ((type == TYPE_PROCESSOR) || (type == TYPE_SCANNER) || 7204 (type == TYPE_ROM) || (type == TYPE_TAPE)) 7205 asc_dvc->pci_fix_asyn_xfer &= ~tid_bits; 7206 7207 if (asc_dvc->pci_fix_asyn_xfer & tid_bits) 7208 AscSetRunChipSynRegAtID(asc_dvc->iop_base, sdev->id, 7209 ASYN_SDTR_DATA_FIX_PCI_REV_AB); 7210 } 7211 7212 static void advansys_narrow_slave_configure(struct scsi_device * sdev,ASC_DVC_VAR * asc_dvc)7213 advansys_narrow_slave_configure(struct scsi_device *sdev, ASC_DVC_VAR *asc_dvc) 7214 { 7215 ASC_SCSI_BIT_ID_TYPE tid_bit = 1 << sdev->id; 7216 ASC_SCSI_BIT_ID_TYPE orig_use_tagged_qng = asc_dvc->use_tagged_qng; 7217 7218 if (sdev->lun == 0) { 7219 ASC_SCSI_BIT_ID_TYPE orig_init_sdtr = asc_dvc->init_sdtr; 7220 if ((asc_dvc->cfg->sdtr_enable & tid_bit) && sdev->sdtr) { 7221 asc_dvc->init_sdtr |= tid_bit; 7222 } else { 7223 asc_dvc->init_sdtr &= ~tid_bit; 7224 } 7225 7226 if (orig_init_sdtr != asc_dvc->init_sdtr) 7227 AscAsyncFix(asc_dvc, sdev); 7228 } 7229 7230 if (sdev->tagged_supported) { 7231 if (asc_dvc->cfg->cmd_qng_enabled & tid_bit) { 7232 if (sdev->lun == 0) { 7233 asc_dvc->cfg->can_tagged_qng |= tid_bit; 7234 asc_dvc->use_tagged_qng |= tid_bit; 7235 } 7236 scsi_change_queue_depth(sdev, 7237 asc_dvc->max_dvc_qng[sdev->id]); 7238 } 7239 } else { 7240 if (sdev->lun == 0) { 7241 asc_dvc->cfg->can_tagged_qng &= ~tid_bit; 7242 asc_dvc->use_tagged_qng &= ~tid_bit; 7243 } 7244 } 7245 7246 if ((sdev->lun == 0) && 7247 (orig_use_tagged_qng != asc_dvc->use_tagged_qng)) { 7248 AscWriteLramByte(asc_dvc->iop_base, ASCV_DISC_ENABLE_B, 7249 asc_dvc->cfg->disc_enable); 7250 AscWriteLramByte(asc_dvc->iop_base, ASCV_USE_TAGGED_QNG_B, 7251 asc_dvc->use_tagged_qng); 7252 AscWriteLramByte(asc_dvc->iop_base, ASCV_CAN_TAGGED_QNG_B, 7253 asc_dvc->cfg->can_tagged_qng); 7254 7255 asc_dvc->max_dvc_qng[sdev->id] = 7256 asc_dvc->cfg->max_tag_qng[sdev->id]; 7257 AscWriteLramByte(asc_dvc->iop_base, 7258 (ushort)(ASCV_MAX_DVC_QNG_BEG + sdev->id), 7259 asc_dvc->max_dvc_qng[sdev->id]); 7260 } 7261 } 7262 7263 /* 7264 * Wide Transfers 7265 * 7266 * If the EEPROM enabled WDTR for the device and the device supports wide 7267 * bus (16 bit) transfers, then turn on the device's 'wdtr_able' bit and 7268 * write the new value to the microcode. 7269 */ 7270 static void advansys_wide_enable_wdtr(AdvPortAddr iop_base,unsigned short tidmask)7271 advansys_wide_enable_wdtr(AdvPortAddr iop_base, unsigned short tidmask) 7272 { 7273 unsigned short cfg_word; 7274 AdvReadWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); 7275 if ((cfg_word & tidmask) != 0) 7276 return; 7277 7278 cfg_word |= tidmask; 7279 AdvWriteWordLram(iop_base, ASC_MC_WDTR_ABLE, cfg_word); 7280 7281 /* 7282 * Clear the microcode SDTR and WDTR negotiation done indicators for 7283 * the target to cause it to negotiate with the new setting set above. 7284 * WDTR when accepted causes the target to enter asynchronous mode, so 7285 * SDTR must be negotiated. 7286 */ 7287 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); 7288 cfg_word &= ~tidmask; 7289 AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); 7290 AdvReadWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); 7291 cfg_word &= ~tidmask; 7292 AdvWriteWordLram(iop_base, ASC_MC_WDTR_DONE, cfg_word); 7293 } 7294 7295 /* 7296 * Synchronous Transfers 7297 * 7298 * If the EEPROM enabled SDTR for the device and the device 7299 * supports synchronous transfers, then turn on the device's 7300 * 'sdtr_able' bit. Write the new value to the microcode. 7301 */ 7302 static void advansys_wide_enable_sdtr(AdvPortAddr iop_base,unsigned short tidmask)7303 advansys_wide_enable_sdtr(AdvPortAddr iop_base, unsigned short tidmask) 7304 { 7305 unsigned short cfg_word; 7306 AdvReadWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); 7307 if ((cfg_word & tidmask) != 0) 7308 return; 7309 7310 cfg_word |= tidmask; 7311 AdvWriteWordLram(iop_base, ASC_MC_SDTR_ABLE, cfg_word); 7312 7313 /* 7314 * Clear the microcode "SDTR negotiation" done indicator for the 7315 * target to cause it to negotiate with the new setting set above. 7316 */ 7317 AdvReadWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); 7318 cfg_word &= ~tidmask; 7319 AdvWriteWordLram(iop_base, ASC_MC_SDTR_DONE, cfg_word); 7320 } 7321 7322 /* 7323 * PPR (Parallel Protocol Request) Capable 7324 * 7325 * If the device supports DT mode, then it must be PPR capable. 7326 * The PPR message will be used in place of the SDTR and WDTR 7327 * messages to negotiate synchronous speed and offset, transfer 7328 * width, and protocol options. 7329 */ advansys_wide_enable_ppr(ADV_DVC_VAR * adv_dvc,AdvPortAddr iop_base,unsigned short tidmask)7330 static void advansys_wide_enable_ppr(ADV_DVC_VAR *adv_dvc, 7331 AdvPortAddr iop_base, unsigned short tidmask) 7332 { 7333 AdvReadWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); 7334 adv_dvc->ppr_able |= tidmask; 7335 AdvWriteWordLram(iop_base, ASC_MC_PPR_ABLE, adv_dvc->ppr_able); 7336 } 7337 7338 static void advansys_wide_slave_configure(struct scsi_device * sdev,ADV_DVC_VAR * adv_dvc)7339 advansys_wide_slave_configure(struct scsi_device *sdev, ADV_DVC_VAR *adv_dvc) 7340 { 7341 AdvPortAddr iop_base = adv_dvc->iop_base; 7342 unsigned short tidmask = 1 << sdev->id; 7343 7344 if (sdev->lun == 0) { 7345 /* 7346 * Handle WDTR, SDTR, and Tag Queuing. If the feature 7347 * is enabled in the EEPROM and the device supports the 7348 * feature, then enable it in the microcode. 7349 */ 7350 7351 if ((adv_dvc->wdtr_able & tidmask) && sdev->wdtr) 7352 advansys_wide_enable_wdtr(iop_base, tidmask); 7353 if ((adv_dvc->sdtr_able & tidmask) && sdev->sdtr) 7354 advansys_wide_enable_sdtr(iop_base, tidmask); 7355 if (adv_dvc->chip_type == ADV_CHIP_ASC38C1600 && sdev->ppr) 7356 advansys_wide_enable_ppr(adv_dvc, iop_base, tidmask); 7357 7358 /* 7359 * Tag Queuing is disabled for the BIOS which runs in polled 7360 * mode and would see no benefit from Tag Queuing. Also by 7361 * disabling Tag Queuing in the BIOS devices with Tag Queuing 7362 * bugs will at least work with the BIOS. 7363 */ 7364 if ((adv_dvc->tagqng_able & tidmask) && 7365 sdev->tagged_supported) { 7366 unsigned short cfg_word; 7367 AdvReadWordLram(iop_base, ASC_MC_TAGQNG_ABLE, cfg_word); 7368 cfg_word |= tidmask; 7369 AdvWriteWordLram(iop_base, ASC_MC_TAGQNG_ABLE, 7370 cfg_word); 7371 AdvWriteByteLram(iop_base, 7372 ASC_MC_NUMBER_OF_MAX_CMD + sdev->id, 7373 adv_dvc->max_dvc_qng); 7374 } 7375 } 7376 7377 if ((adv_dvc->tagqng_able & tidmask) && sdev->tagged_supported) 7378 scsi_change_queue_depth(sdev, adv_dvc->max_dvc_qng); 7379 } 7380 7381 /* 7382 * Set the number of commands to queue per device for the 7383 * specified host adapter. 7384 */ advansys_slave_configure(struct scsi_device * sdev)7385 static int advansys_slave_configure(struct scsi_device *sdev) 7386 { 7387 struct asc_board *boardp = shost_priv(sdev->host); 7388 7389 if (ASC_NARROW_BOARD(boardp)) 7390 advansys_narrow_slave_configure(sdev, 7391 &boardp->dvc_var.asc_dvc_var); 7392 else 7393 advansys_wide_slave_configure(sdev, 7394 &boardp->dvc_var.adv_dvc_var); 7395 7396 return 0; 7397 } 7398 asc_get_sense_buffer_dma(struct scsi_cmnd * scp)7399 static __le32 asc_get_sense_buffer_dma(struct scsi_cmnd *scp) 7400 { 7401 struct asc_board *board = shost_priv(scp->device->host); 7402 7403 scp->SCp.dma_handle = dma_map_single(board->dev, scp->sense_buffer, 7404 SCSI_SENSE_BUFFERSIZE, 7405 DMA_FROM_DEVICE); 7406 if (dma_mapping_error(board->dev, scp->SCp.dma_handle)) { 7407 ASC_DBG(1, "failed to map sense buffer\n"); 7408 return 0; 7409 } 7410 return cpu_to_le32(scp->SCp.dma_handle); 7411 } 7412 asc_build_req(struct asc_board * boardp,struct scsi_cmnd * scp,struct asc_scsi_q * asc_scsi_q)7413 static int asc_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, 7414 struct asc_scsi_q *asc_scsi_q) 7415 { 7416 struct asc_dvc_var *asc_dvc = &boardp->dvc_var.asc_dvc_var; 7417 int use_sg; 7418 u32 srb_tag; 7419 7420 memset(asc_scsi_q, 0, sizeof(*asc_scsi_q)); 7421 7422 /* 7423 * Set the srb_tag to the command tag + 1, as 7424 * srb_tag '0' is used internally by the chip. 7425 */ 7426 srb_tag = scsi_cmd_to_rq(scp)->tag + 1; 7427 asc_scsi_q->q2.srb_tag = srb_tag; 7428 7429 /* 7430 * Build the ASC_SCSI_Q request. 7431 */ 7432 asc_scsi_q->cdbptr = &scp->cmnd[0]; 7433 asc_scsi_q->q2.cdb_len = scp->cmd_len; 7434 asc_scsi_q->q1.target_id = ASC_TID_TO_TARGET_ID(scp->device->id); 7435 asc_scsi_q->q1.target_lun = scp->device->lun; 7436 asc_scsi_q->q2.target_ix = 7437 ASC_TIDLUN_TO_IX(scp->device->id, scp->device->lun); 7438 asc_scsi_q->q1.sense_addr = asc_get_sense_buffer_dma(scp); 7439 asc_scsi_q->q1.sense_len = SCSI_SENSE_BUFFERSIZE; 7440 if (!asc_scsi_q->q1.sense_addr) 7441 return ASC_BUSY; 7442 7443 /* 7444 * If there are any outstanding requests for the current target, 7445 * then every 255th request send an ORDERED request. This heuristic 7446 * tries to retain the benefit of request sorting while preventing 7447 * request starvation. 255 is the max number of tags or pending commands 7448 * a device may have outstanding. 7449 * 7450 * The request count is incremented below for every successfully 7451 * started request. 7452 * 7453 */ 7454 if ((asc_dvc->cur_dvc_qng[scp->device->id] > 0) && 7455 (boardp->reqcnt[scp->device->id] % 255) == 0) { 7456 asc_scsi_q->q2.tag_code = ORDERED_QUEUE_TAG; 7457 } else { 7458 asc_scsi_q->q2.tag_code = SIMPLE_QUEUE_TAG; 7459 } 7460 7461 /* Build ASC_SCSI_Q */ 7462 use_sg = scsi_dma_map(scp); 7463 if (use_sg < 0) { 7464 ASC_DBG(1, "failed to map sglist\n"); 7465 return ASC_BUSY; 7466 } else if (use_sg > 0) { 7467 int sgcnt; 7468 struct scatterlist *slp; 7469 struct asc_sg_head *asc_sg_head; 7470 7471 if (use_sg > scp->device->host->sg_tablesize) { 7472 scmd_printk(KERN_ERR, scp, "use_sg %d > " 7473 "sg_tablesize %d\n", use_sg, 7474 scp->device->host->sg_tablesize); 7475 scsi_dma_unmap(scp); 7476 set_host_byte(scp, DID_ERROR); 7477 return ASC_ERROR; 7478 } 7479 7480 asc_sg_head = kzalloc(sizeof(asc_scsi_q->sg_head) + 7481 use_sg * sizeof(struct asc_sg_list), GFP_ATOMIC); 7482 if (!asc_sg_head) { 7483 scsi_dma_unmap(scp); 7484 set_host_byte(scp, DID_SOFT_ERROR); 7485 return ASC_ERROR; 7486 } 7487 7488 asc_scsi_q->q1.cntl |= QC_SG_HEAD; 7489 asc_scsi_q->sg_head = asc_sg_head; 7490 asc_scsi_q->q1.data_cnt = 0; 7491 asc_scsi_q->q1.data_addr = 0; 7492 /* This is a byte value, otherwise it would need to be swapped. */ 7493 asc_sg_head->entry_cnt = asc_scsi_q->q1.sg_queue_cnt = use_sg; 7494 ASC_STATS_ADD(scp->device->host, xfer_elem, 7495 asc_sg_head->entry_cnt); 7496 7497 /* 7498 * Convert scatter-gather list into ASC_SG_HEAD list. 7499 */ 7500 scsi_for_each_sg(scp, slp, use_sg, sgcnt) { 7501 asc_sg_head->sg_list[sgcnt].addr = 7502 cpu_to_le32(sg_dma_address(slp)); 7503 asc_sg_head->sg_list[sgcnt].bytes = 7504 cpu_to_le32(sg_dma_len(slp)); 7505 ASC_STATS_ADD(scp->device->host, xfer_sect, 7506 DIV_ROUND_UP(sg_dma_len(slp), 512)); 7507 } 7508 } 7509 7510 ASC_STATS(scp->device->host, xfer_cnt); 7511 7512 ASC_DBG_PRT_ASC_SCSI_Q(2, asc_scsi_q); 7513 ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); 7514 7515 return ASC_NOERROR; 7516 } 7517 7518 /* 7519 * Build scatter-gather list for Adv Library (Wide Board). 7520 * 7521 * Additional ADV_SG_BLOCK structures will need to be allocated 7522 * if the total number of scatter-gather elements exceeds 7523 * NO_OF_SG_PER_BLOCK (15). The ADV_SG_BLOCK structures are 7524 * assumed to be physically contiguous. 7525 * 7526 * Return: 7527 * ADV_SUCCESS(1) - SG List successfully created 7528 * ADV_ERROR(-1) - SG List creation failed 7529 */ 7530 static int adv_get_sglist(struct asc_board * boardp,adv_req_t * reqp,ADV_SCSI_REQ_Q * scsiqp,struct scsi_cmnd * scp,int use_sg)7531 adv_get_sglist(struct asc_board *boardp, adv_req_t *reqp, 7532 ADV_SCSI_REQ_Q *scsiqp, struct scsi_cmnd *scp, int use_sg) 7533 { 7534 adv_sgblk_t *sgblkp, *prev_sgblkp; 7535 struct scatterlist *slp; 7536 int sg_elem_cnt; 7537 ADV_SG_BLOCK *sg_block, *prev_sg_block; 7538 dma_addr_t sgblk_paddr; 7539 int i; 7540 7541 slp = scsi_sglist(scp); 7542 sg_elem_cnt = use_sg; 7543 prev_sgblkp = NULL; 7544 prev_sg_block = NULL; 7545 reqp->sgblkp = NULL; 7546 7547 for (;;) { 7548 /* 7549 * Allocate a 'adv_sgblk_t' structure from the board free 7550 * list. One 'adv_sgblk_t' structure holds NO_OF_SG_PER_BLOCK 7551 * (15) scatter-gather elements. 7552 */ 7553 sgblkp = dma_pool_alloc(boardp->adv_sgblk_pool, GFP_ATOMIC, 7554 &sgblk_paddr); 7555 if (!sgblkp) { 7556 ASC_DBG(1, "no free adv_sgblk_t\n"); 7557 ASC_STATS(scp->device->host, adv_build_nosg); 7558 7559 /* 7560 * Allocation failed. Free 'adv_sgblk_t' structures 7561 * already allocated for the request. 7562 */ 7563 while ((sgblkp = reqp->sgblkp) != NULL) { 7564 /* Remove 'sgblkp' from the request list. */ 7565 reqp->sgblkp = sgblkp->next_sgblkp; 7566 sgblkp->next_sgblkp = NULL; 7567 dma_pool_free(boardp->adv_sgblk_pool, sgblkp, 7568 sgblkp->sg_addr); 7569 } 7570 return ASC_BUSY; 7571 } 7572 /* Complete 'adv_sgblk_t' board allocation. */ 7573 sgblkp->sg_addr = sgblk_paddr; 7574 sgblkp->next_sgblkp = NULL; 7575 sg_block = &sgblkp->sg_block; 7576 7577 /* 7578 * Check if this is the first 'adv_sgblk_t' for the 7579 * request. 7580 */ 7581 if (reqp->sgblkp == NULL) { 7582 /* Request's first scatter-gather block. */ 7583 reqp->sgblkp = sgblkp; 7584 7585 /* 7586 * Set ADV_SCSI_REQ_T ADV_SG_BLOCK virtual and physical 7587 * address pointers. 7588 */ 7589 scsiqp->sg_list_ptr = sg_block; 7590 scsiqp->sg_real_addr = cpu_to_le32(sgblk_paddr); 7591 } else { 7592 /* Request's second or later scatter-gather block. */ 7593 prev_sgblkp->next_sgblkp = sgblkp; 7594 7595 /* 7596 * Point the previous ADV_SG_BLOCK structure to 7597 * the newly allocated ADV_SG_BLOCK structure. 7598 */ 7599 prev_sg_block->sg_ptr = cpu_to_le32(sgblk_paddr); 7600 } 7601 7602 for (i = 0; i < NO_OF_SG_PER_BLOCK; i++) { 7603 sg_block->sg_list[i].sg_addr = 7604 cpu_to_le32(sg_dma_address(slp)); 7605 sg_block->sg_list[i].sg_count = 7606 cpu_to_le32(sg_dma_len(slp)); 7607 ASC_STATS_ADD(scp->device->host, xfer_sect, 7608 DIV_ROUND_UP(sg_dma_len(slp), 512)); 7609 7610 if (--sg_elem_cnt == 0) { 7611 /* 7612 * Last ADV_SG_BLOCK and scatter-gather entry. 7613 */ 7614 sg_block->sg_cnt = i + 1; 7615 sg_block->sg_ptr = 0L; /* Last ADV_SG_BLOCK in list. */ 7616 return ADV_SUCCESS; 7617 } 7618 slp = sg_next(slp); 7619 } 7620 sg_block->sg_cnt = NO_OF_SG_PER_BLOCK; 7621 prev_sg_block = sg_block; 7622 prev_sgblkp = sgblkp; 7623 } 7624 } 7625 7626 /* 7627 * Build a request structure for the Adv Library (Wide Board). 7628 * 7629 * If an adv_req_t can not be allocated to issue the request, 7630 * then return ASC_BUSY. If an error occurs, then return ASC_ERROR. 7631 * 7632 * Multi-byte fields in the ADV_SCSI_REQ_Q that are used by the 7633 * microcode for DMA addresses or math operations are byte swapped 7634 * to little-endian order. 7635 */ 7636 static int adv_build_req(struct asc_board * boardp,struct scsi_cmnd * scp,adv_req_t ** adv_reqpp)7637 adv_build_req(struct asc_board *boardp, struct scsi_cmnd *scp, 7638 adv_req_t **adv_reqpp) 7639 { 7640 u32 srb_tag = scsi_cmd_to_rq(scp)->tag; 7641 adv_req_t *reqp; 7642 ADV_SCSI_REQ_Q *scsiqp; 7643 int ret; 7644 int use_sg; 7645 dma_addr_t sense_addr; 7646 7647 /* 7648 * Allocate an adv_req_t structure from the board to execute 7649 * the command. 7650 */ 7651 reqp = &boardp->adv_reqp[srb_tag]; 7652 if (reqp->cmndp && reqp->cmndp != scp ) { 7653 ASC_DBG(1, "no free adv_req_t\n"); 7654 ASC_STATS(scp->device->host, adv_build_noreq); 7655 return ASC_BUSY; 7656 } 7657 7658 reqp->req_addr = boardp->adv_reqp_addr + (srb_tag * sizeof(adv_req_t)); 7659 7660 scsiqp = &reqp->scsi_req_q; 7661 7662 /* 7663 * Initialize the structure. 7664 */ 7665 scsiqp->cntl = scsiqp->scsi_cntl = scsiqp->done_status = 0; 7666 7667 /* 7668 * Set the srb_tag to the command tag. 7669 */ 7670 scsiqp->srb_tag = srb_tag; 7671 7672 /* 7673 * Set 'host_scribble' to point to the adv_req_t structure. 7674 */ 7675 reqp->cmndp = scp; 7676 scp->host_scribble = (void *)reqp; 7677 7678 /* 7679 * Build the ADV_SCSI_REQ_Q request. 7680 */ 7681 7682 /* Set CDB length and copy it to the request structure. */ 7683 scsiqp->cdb_len = scp->cmd_len; 7684 /* Copy first 12 CDB bytes to cdb[]. */ 7685 memcpy(scsiqp->cdb, scp->cmnd, scp->cmd_len < 12 ? scp->cmd_len : 12); 7686 /* Copy last 4 CDB bytes, if present, to cdb16[]. */ 7687 if (scp->cmd_len > 12) { 7688 int cdb16_len = scp->cmd_len - 12; 7689 7690 memcpy(scsiqp->cdb16, &scp->cmnd[12], cdb16_len); 7691 } 7692 7693 scsiqp->target_id = scp->device->id; 7694 scsiqp->target_lun = scp->device->lun; 7695 7696 sense_addr = dma_map_single(boardp->dev, scp->sense_buffer, 7697 SCSI_SENSE_BUFFERSIZE, DMA_FROM_DEVICE); 7698 if (dma_mapping_error(boardp->dev, sense_addr)) { 7699 ASC_DBG(1, "failed to map sense buffer\n"); 7700 ASC_STATS(scp->device->host, adv_build_noreq); 7701 return ASC_BUSY; 7702 } 7703 scsiqp->sense_addr = cpu_to_le32(sense_addr); 7704 scsiqp->sense_len = SCSI_SENSE_BUFFERSIZE; 7705 7706 /* Build ADV_SCSI_REQ_Q */ 7707 7708 use_sg = scsi_dma_map(scp); 7709 if (use_sg < 0) { 7710 ASC_DBG(1, "failed to map SG list\n"); 7711 ASC_STATS(scp->device->host, adv_build_noreq); 7712 return ASC_BUSY; 7713 } else if (use_sg == 0) { 7714 /* Zero-length transfer */ 7715 reqp->sgblkp = NULL; 7716 scsiqp->data_cnt = 0; 7717 7718 scsiqp->data_addr = 0; 7719 scsiqp->sg_list_ptr = NULL; 7720 scsiqp->sg_real_addr = 0; 7721 } else { 7722 if (use_sg > ADV_MAX_SG_LIST) { 7723 scmd_printk(KERN_ERR, scp, "use_sg %d > " 7724 "ADV_MAX_SG_LIST %d\n", use_sg, 7725 scp->device->host->sg_tablesize); 7726 scsi_dma_unmap(scp); 7727 set_host_byte(scp, DID_ERROR); 7728 reqp->cmndp = NULL; 7729 scp->host_scribble = NULL; 7730 7731 return ASC_ERROR; 7732 } 7733 7734 scsiqp->data_cnt = cpu_to_le32(scsi_bufflen(scp)); 7735 7736 ret = adv_get_sglist(boardp, reqp, scsiqp, scp, use_sg); 7737 if (ret != ADV_SUCCESS) { 7738 scsi_dma_unmap(scp); 7739 set_host_byte(scp, DID_ERROR); 7740 reqp->cmndp = NULL; 7741 scp->host_scribble = NULL; 7742 7743 return ret; 7744 } 7745 7746 ASC_STATS_ADD(scp->device->host, xfer_elem, use_sg); 7747 } 7748 7749 ASC_STATS(scp->device->host, xfer_cnt); 7750 7751 ASC_DBG_PRT_ADV_SCSI_REQ_Q(2, scsiqp); 7752 ASC_DBG_PRT_CDB(1, scp->cmnd, scp->cmd_len); 7753 7754 *adv_reqpp = reqp; 7755 7756 return ASC_NOERROR; 7757 } 7758 AscSgListToQueue(int sg_list)7759 static int AscSgListToQueue(int sg_list) 7760 { 7761 int n_sg_list_qs; 7762 7763 n_sg_list_qs = ((sg_list - 1) / ASC_SG_LIST_PER_Q); 7764 if (((sg_list - 1) % ASC_SG_LIST_PER_Q) != 0) 7765 n_sg_list_qs++; 7766 return n_sg_list_qs + 1; 7767 } 7768 7769 static uint AscGetNumOfFreeQueue(ASC_DVC_VAR * asc_dvc,uchar target_ix,uchar n_qs)7770 AscGetNumOfFreeQueue(ASC_DVC_VAR *asc_dvc, uchar target_ix, uchar n_qs) 7771 { 7772 uint cur_used_qs; 7773 uint cur_free_qs; 7774 ASC_SCSI_BIT_ID_TYPE target_id; 7775 uchar tid_no; 7776 7777 target_id = ASC_TIX_TO_TARGET_ID(target_ix); 7778 tid_no = ASC_TIX_TO_TID(target_ix); 7779 if ((asc_dvc->unit_not_ready & target_id) || 7780 (asc_dvc->queue_full_or_busy & target_id)) { 7781 return 0; 7782 } 7783 if (n_qs == 1) { 7784 cur_used_qs = (uint) asc_dvc->cur_total_qng + 7785 (uint) asc_dvc->last_q_shortage + (uint) ASC_MIN_FREE_Q; 7786 } else { 7787 cur_used_qs = (uint) asc_dvc->cur_total_qng + 7788 (uint) ASC_MIN_FREE_Q; 7789 } 7790 if ((uint) (cur_used_qs + n_qs) <= (uint) asc_dvc->max_total_qng) { 7791 cur_free_qs = (uint) asc_dvc->max_total_qng - cur_used_qs; 7792 if (asc_dvc->cur_dvc_qng[tid_no] >= 7793 asc_dvc->max_dvc_qng[tid_no]) { 7794 return 0; 7795 } 7796 return cur_free_qs; 7797 } 7798 if (n_qs > 1) { 7799 if ((n_qs > asc_dvc->last_q_shortage) 7800 && (n_qs <= (asc_dvc->max_total_qng - ASC_MIN_FREE_Q))) { 7801 asc_dvc->last_q_shortage = n_qs; 7802 } 7803 } 7804 return 0; 7805 } 7806 AscAllocFreeQueue(PortAddr iop_base,uchar free_q_head)7807 static uchar AscAllocFreeQueue(PortAddr iop_base, uchar free_q_head) 7808 { 7809 ushort q_addr; 7810 uchar next_qp; 7811 uchar q_status; 7812 7813 q_addr = ASC_QNO_TO_QADDR(free_q_head); 7814 q_status = (uchar)AscReadLramByte(iop_base, 7815 (ushort)(q_addr + 7816 ASC_SCSIQ_B_STATUS)); 7817 next_qp = AscReadLramByte(iop_base, (ushort)(q_addr + ASC_SCSIQ_B_FWD)); 7818 if (((q_status & QS_READY) == 0) && (next_qp != ASC_QLINK_END)) 7819 return next_qp; 7820 return ASC_QLINK_END; 7821 } 7822 7823 static uchar AscAllocMultipleFreeQueue(PortAddr iop_base,uchar free_q_head,uchar n_free_q)7824 AscAllocMultipleFreeQueue(PortAddr iop_base, uchar free_q_head, uchar n_free_q) 7825 { 7826 uchar i; 7827 7828 for (i = 0; i < n_free_q; i++) { 7829 free_q_head = AscAllocFreeQueue(iop_base, free_q_head); 7830 if (free_q_head == ASC_QLINK_END) 7831 break; 7832 } 7833 return free_q_head; 7834 } 7835 7836 /* 7837 * void 7838 * DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) 7839 * 7840 * Calling/Exit State: 7841 * none 7842 * 7843 * Description: 7844 * Output an ASC_SCSI_Q structure to the chip 7845 */ 7846 static void DvcPutScsiQ(PortAddr iop_base,ushort s_addr,uchar * outbuf,int words)7847 DvcPutScsiQ(PortAddr iop_base, ushort s_addr, uchar *outbuf, int words) 7848 { 7849 int i; 7850 7851 ASC_DBG_PRT_HEX(2, "DvcPutScsiQ", outbuf, 2 * words); 7852 AscSetChipLramAddr(iop_base, s_addr); 7853 for (i = 0; i < 2 * words; i += 2) { 7854 if (i == 4 || i == 20) { 7855 continue; 7856 } 7857 outpw(iop_base + IOP_RAM_DATA, 7858 ((ushort)outbuf[i + 1] << 8) | outbuf[i]); 7859 } 7860 } 7861 AscPutReadyQueue(ASC_DVC_VAR * asc_dvc,ASC_SCSI_Q * scsiq,uchar q_no)7862 static int AscPutReadyQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) 7863 { 7864 ushort q_addr; 7865 uchar tid_no; 7866 uchar sdtr_data; 7867 uchar syn_period_ix; 7868 uchar syn_offset; 7869 PortAddr iop_base; 7870 7871 iop_base = asc_dvc->iop_base; 7872 if (((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) && 7873 ((asc_dvc->sdtr_done & scsiq->q1.target_id) == 0)) { 7874 tid_no = ASC_TIX_TO_TID(scsiq->q2.target_ix); 7875 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); 7876 syn_period_ix = 7877 (sdtr_data >> 4) & (asc_dvc->max_sdtr_index - 1); 7878 syn_offset = sdtr_data & ASC_SYN_MAX_OFFSET; 7879 AscMsgOutSDTR(asc_dvc, 7880 asc_dvc->sdtr_period_tbl[syn_period_ix], 7881 syn_offset); 7882 scsiq->q1.cntl |= QC_MSG_OUT; 7883 } 7884 q_addr = ASC_QNO_TO_QADDR(q_no); 7885 if ((scsiq->q1.target_id & asc_dvc->use_tagged_qng) == 0) { 7886 scsiq->q2.tag_code &= ~SIMPLE_QUEUE_TAG; 7887 } 7888 scsiq->q1.status = QS_FREE; 7889 AscMemWordCopyPtrToLram(iop_base, 7890 q_addr + ASC_SCSIQ_CDB_BEG, 7891 (uchar *)scsiq->cdbptr, scsiq->q2.cdb_len >> 1); 7892 7893 DvcPutScsiQ(iop_base, 7894 q_addr + ASC_SCSIQ_CPY_BEG, 7895 (uchar *)&scsiq->q1.cntl, 7896 ((sizeof(ASC_SCSIQ_1) + sizeof(ASC_SCSIQ_2)) / 2) - 1); 7897 AscWriteLramWord(iop_base, 7898 (ushort)(q_addr + (ushort)ASC_SCSIQ_B_STATUS), 7899 (ushort)(((ushort)scsiq->q1. 7900 q_no << 8) | (ushort)QS_READY)); 7901 return 1; 7902 } 7903 7904 static int AscPutReadySgListQueue(ASC_DVC_VAR * asc_dvc,ASC_SCSI_Q * scsiq,uchar q_no)7905 AscPutReadySgListQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar q_no) 7906 { 7907 int sta; 7908 int i; 7909 ASC_SG_HEAD *sg_head; 7910 ASC_SG_LIST_Q scsi_sg_q; 7911 __le32 saved_data_addr; 7912 __le32 saved_data_cnt; 7913 PortAddr iop_base; 7914 ushort sg_list_dwords; 7915 ushort sg_index; 7916 ushort sg_entry_cnt; 7917 ushort q_addr; 7918 uchar next_qp; 7919 7920 iop_base = asc_dvc->iop_base; 7921 sg_head = scsiq->sg_head; 7922 saved_data_addr = scsiq->q1.data_addr; 7923 saved_data_cnt = scsiq->q1.data_cnt; 7924 scsiq->q1.data_addr = cpu_to_le32(sg_head->sg_list[0].addr); 7925 scsiq->q1.data_cnt = cpu_to_le32(sg_head->sg_list[0].bytes); 7926 /* 7927 * Set sg_entry_cnt to be the number of SG elements that 7928 * will fit in the allocated SG queues. It is minus 1, because 7929 * the first SG element is handled above. 7930 */ 7931 sg_entry_cnt = sg_head->entry_cnt - 1; 7932 7933 if (sg_entry_cnt != 0) { 7934 scsiq->q1.cntl |= QC_SG_HEAD; 7935 q_addr = ASC_QNO_TO_QADDR(q_no); 7936 sg_index = 1; 7937 scsiq->q1.sg_queue_cnt = sg_head->queue_cnt; 7938 scsi_sg_q.sg_head_qp = q_no; 7939 scsi_sg_q.cntl = QCSG_SG_XFER_LIST; 7940 for (i = 0; i < sg_head->queue_cnt; i++) { 7941 scsi_sg_q.seq_no = i + 1; 7942 if (sg_entry_cnt > ASC_SG_LIST_PER_Q) { 7943 sg_list_dwords = (uchar)(ASC_SG_LIST_PER_Q * 2); 7944 sg_entry_cnt -= ASC_SG_LIST_PER_Q; 7945 if (i == 0) { 7946 scsi_sg_q.sg_list_cnt = 7947 ASC_SG_LIST_PER_Q; 7948 scsi_sg_q.sg_cur_list_cnt = 7949 ASC_SG_LIST_PER_Q; 7950 } else { 7951 scsi_sg_q.sg_list_cnt = 7952 ASC_SG_LIST_PER_Q - 1; 7953 scsi_sg_q.sg_cur_list_cnt = 7954 ASC_SG_LIST_PER_Q - 1; 7955 } 7956 } else { 7957 scsi_sg_q.cntl |= QCSG_SG_XFER_END; 7958 sg_list_dwords = sg_entry_cnt << 1; 7959 if (i == 0) { 7960 scsi_sg_q.sg_list_cnt = sg_entry_cnt; 7961 scsi_sg_q.sg_cur_list_cnt = 7962 sg_entry_cnt; 7963 } else { 7964 scsi_sg_q.sg_list_cnt = 7965 sg_entry_cnt - 1; 7966 scsi_sg_q.sg_cur_list_cnt = 7967 sg_entry_cnt - 1; 7968 } 7969 sg_entry_cnt = 0; 7970 } 7971 next_qp = AscReadLramByte(iop_base, 7972 (ushort)(q_addr + 7973 ASC_SCSIQ_B_FWD)); 7974 scsi_sg_q.q_no = next_qp; 7975 q_addr = ASC_QNO_TO_QADDR(next_qp); 7976 AscMemWordCopyPtrToLram(iop_base, 7977 q_addr + ASC_SCSIQ_SGHD_CPY_BEG, 7978 (uchar *)&scsi_sg_q, 7979 sizeof(ASC_SG_LIST_Q) >> 1); 7980 AscMemDWordCopyPtrToLram(iop_base, 7981 q_addr + ASC_SGQ_LIST_BEG, 7982 (uchar *)&sg_head-> 7983 sg_list[sg_index], 7984 sg_list_dwords); 7985 sg_index += ASC_SG_LIST_PER_Q; 7986 scsiq->next_sg_index = sg_index; 7987 } 7988 } else { 7989 scsiq->q1.cntl &= ~QC_SG_HEAD; 7990 } 7991 sta = AscPutReadyQueue(asc_dvc, scsiq, q_no); 7992 scsiq->q1.data_addr = saved_data_addr; 7993 scsiq->q1.data_cnt = saved_data_cnt; 7994 return (sta); 7995 } 7996 7997 static int AscSendScsiQueue(ASC_DVC_VAR * asc_dvc,ASC_SCSI_Q * scsiq,uchar n_q_required)7998 AscSendScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq, uchar n_q_required) 7999 { 8000 PortAddr iop_base; 8001 uchar free_q_head; 8002 uchar next_qp; 8003 uchar tid_no; 8004 uchar target_ix; 8005 int sta; 8006 8007 iop_base = asc_dvc->iop_base; 8008 target_ix = scsiq->q2.target_ix; 8009 tid_no = ASC_TIX_TO_TID(target_ix); 8010 sta = 0; 8011 free_q_head = (uchar)AscGetVarFreeQHead(iop_base); 8012 if (n_q_required > 1) { 8013 next_qp = AscAllocMultipleFreeQueue(iop_base, free_q_head, 8014 (uchar)n_q_required); 8015 if (next_qp != ASC_QLINK_END) { 8016 asc_dvc->last_q_shortage = 0; 8017 scsiq->sg_head->queue_cnt = n_q_required - 1; 8018 scsiq->q1.q_no = free_q_head; 8019 sta = AscPutReadySgListQueue(asc_dvc, scsiq, 8020 free_q_head); 8021 } 8022 } else if (n_q_required == 1) { 8023 next_qp = AscAllocFreeQueue(iop_base, free_q_head); 8024 if (next_qp != ASC_QLINK_END) { 8025 scsiq->q1.q_no = free_q_head; 8026 sta = AscPutReadyQueue(asc_dvc, scsiq, free_q_head); 8027 } 8028 } 8029 if (sta == 1) { 8030 AscPutVarFreeQHead(iop_base, next_qp); 8031 asc_dvc->cur_total_qng += n_q_required; 8032 asc_dvc->cur_dvc_qng[tid_no]++; 8033 } 8034 return sta; 8035 } 8036 8037 #define ASC_SYN_OFFSET_ONE_DISABLE_LIST 16 8038 static uchar _syn_offset_one_disable_cmd[ASC_SYN_OFFSET_ONE_DISABLE_LIST] = { 8039 INQUIRY, 8040 REQUEST_SENSE, 8041 READ_CAPACITY, 8042 READ_TOC, 8043 MODE_SELECT, 8044 MODE_SENSE, 8045 MODE_SELECT_10, 8046 MODE_SENSE_10, 8047 0xFF, 8048 0xFF, 8049 0xFF, 8050 0xFF, 8051 0xFF, 8052 0xFF, 8053 0xFF, 8054 0xFF 8055 }; 8056 AscExeScsiQueue(ASC_DVC_VAR * asc_dvc,ASC_SCSI_Q * scsiq)8057 static int AscExeScsiQueue(ASC_DVC_VAR *asc_dvc, ASC_SCSI_Q *scsiq) 8058 { 8059 PortAddr iop_base; 8060 int sta; 8061 int n_q_required; 8062 bool disable_syn_offset_one_fix; 8063 int i; 8064 u32 addr; 8065 ushort sg_entry_cnt = 0; 8066 ushort sg_entry_cnt_minus_one = 0; 8067 uchar target_ix; 8068 uchar tid_no; 8069 uchar sdtr_data; 8070 uchar extra_bytes; 8071 uchar scsi_cmd; 8072 uchar disable_cmd; 8073 ASC_SG_HEAD *sg_head; 8074 unsigned long data_cnt; 8075 8076 iop_base = asc_dvc->iop_base; 8077 sg_head = scsiq->sg_head; 8078 if (asc_dvc->err_code != 0) 8079 return ASC_ERROR; 8080 scsiq->q1.q_no = 0; 8081 if ((scsiq->q2.tag_code & ASC_TAG_FLAG_EXTRA_BYTES) == 0) { 8082 scsiq->q1.extra_bytes = 0; 8083 } 8084 sta = 0; 8085 target_ix = scsiq->q2.target_ix; 8086 tid_no = ASC_TIX_TO_TID(target_ix); 8087 n_q_required = 1; 8088 if (scsiq->cdbptr[0] == REQUEST_SENSE) { 8089 if ((asc_dvc->init_sdtr & scsiq->q1.target_id) != 0) { 8090 asc_dvc->sdtr_done &= ~scsiq->q1.target_id; 8091 sdtr_data = AscGetMCodeInitSDTRAtID(iop_base, tid_no); 8092 AscMsgOutSDTR(asc_dvc, 8093 asc_dvc-> 8094 sdtr_period_tbl[(sdtr_data >> 4) & 8095 (uchar)(asc_dvc-> 8096 max_sdtr_index - 8097 1)], 8098 (uchar)(sdtr_data & (uchar) 8099 ASC_SYN_MAX_OFFSET)); 8100 scsiq->q1.cntl |= (QC_MSG_OUT | QC_URGENT); 8101 } 8102 } 8103 if (asc_dvc->in_critical_cnt != 0) { 8104 AscSetLibErrorCode(asc_dvc, ASCQ_ERR_CRITICAL_RE_ENTRY); 8105 return ASC_ERROR; 8106 } 8107 asc_dvc->in_critical_cnt++; 8108 if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { 8109 if ((sg_entry_cnt = sg_head->entry_cnt) == 0) { 8110 asc_dvc->in_critical_cnt--; 8111 return ASC_ERROR; 8112 } 8113 if (sg_entry_cnt > ASC_MAX_SG_LIST) { 8114 asc_dvc->in_critical_cnt--; 8115 return ASC_ERROR; 8116 } 8117 if (sg_entry_cnt == 1) { 8118 scsiq->q1.data_addr = cpu_to_le32(sg_head->sg_list[0].addr); 8119 scsiq->q1.data_cnt = cpu_to_le32(sg_head->sg_list[0].bytes); 8120 scsiq->q1.cntl &= ~(QC_SG_HEAD | QC_SG_SWAP_QUEUE); 8121 } 8122 sg_entry_cnt_minus_one = sg_entry_cnt - 1; 8123 } 8124 scsi_cmd = scsiq->cdbptr[0]; 8125 disable_syn_offset_one_fix = false; 8126 if ((asc_dvc->pci_fix_asyn_xfer & scsiq->q1.target_id) && 8127 !(asc_dvc->pci_fix_asyn_xfer_always & scsiq->q1.target_id)) { 8128 if (scsiq->q1.cntl & QC_SG_HEAD) { 8129 data_cnt = 0; 8130 for (i = 0; i < sg_entry_cnt; i++) { 8131 data_cnt += le32_to_cpu(sg_head->sg_list[i]. 8132 bytes); 8133 } 8134 } else { 8135 data_cnt = le32_to_cpu(scsiq->q1.data_cnt); 8136 } 8137 if (data_cnt != 0UL) { 8138 if (data_cnt < 512UL) { 8139 disable_syn_offset_one_fix = true; 8140 } else { 8141 for (i = 0; i < ASC_SYN_OFFSET_ONE_DISABLE_LIST; 8142 i++) { 8143 disable_cmd = 8144 _syn_offset_one_disable_cmd[i]; 8145 if (disable_cmd == 0xFF) { 8146 break; 8147 } 8148 if (scsi_cmd == disable_cmd) { 8149 disable_syn_offset_one_fix = 8150 true; 8151 break; 8152 } 8153 } 8154 } 8155 } 8156 } 8157 if (disable_syn_offset_one_fix) { 8158 scsiq->q2.tag_code &= ~SIMPLE_QUEUE_TAG; 8159 scsiq->q2.tag_code |= (ASC_TAG_FLAG_DISABLE_ASYN_USE_SYN_FIX | 8160 ASC_TAG_FLAG_DISABLE_DISCONNECT); 8161 } else { 8162 scsiq->q2.tag_code &= 0x27; 8163 } 8164 if ((scsiq->q1.cntl & QC_SG_HEAD) != 0) { 8165 if (asc_dvc->bug_fix_cntl) { 8166 if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { 8167 if ((scsi_cmd == READ_6) || 8168 (scsi_cmd == READ_10)) { 8169 addr = le32_to_cpu(sg_head-> 8170 sg_list 8171 [sg_entry_cnt_minus_one]. 8172 addr) + 8173 le32_to_cpu(sg_head-> 8174 sg_list 8175 [sg_entry_cnt_minus_one]. 8176 bytes); 8177 extra_bytes = 8178 (uchar)((ushort)addr & 0x0003); 8179 if ((extra_bytes != 0) 8180 && 8181 ((scsiq->q2. 8182 tag_code & 8183 ASC_TAG_FLAG_EXTRA_BYTES) 8184 == 0)) { 8185 scsiq->q2.tag_code |= 8186 ASC_TAG_FLAG_EXTRA_BYTES; 8187 scsiq->q1.extra_bytes = 8188 extra_bytes; 8189 data_cnt = 8190 le32_to_cpu(sg_head-> 8191 sg_list 8192 [sg_entry_cnt_minus_one]. 8193 bytes); 8194 data_cnt -= extra_bytes; 8195 sg_head-> 8196 sg_list 8197 [sg_entry_cnt_minus_one]. 8198 bytes = 8199 cpu_to_le32(data_cnt); 8200 } 8201 } 8202 } 8203 } 8204 sg_head->entry_to_copy = sg_head->entry_cnt; 8205 n_q_required = AscSgListToQueue(sg_entry_cnt); 8206 if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, n_q_required) >= 8207 (uint) n_q_required) 8208 || ((scsiq->q1.cntl & QC_URGENT) != 0)) { 8209 if ((sta = 8210 AscSendScsiQueue(asc_dvc, scsiq, 8211 n_q_required)) == 1) { 8212 asc_dvc->in_critical_cnt--; 8213 return (sta); 8214 } 8215 } 8216 } else { 8217 if (asc_dvc->bug_fix_cntl) { 8218 if (asc_dvc->bug_fix_cntl & ASC_BUG_FIX_IF_NOT_DWB) { 8219 if ((scsi_cmd == READ_6) || 8220 (scsi_cmd == READ_10)) { 8221 addr = 8222 le32_to_cpu(scsiq->q1.data_addr) + 8223 le32_to_cpu(scsiq->q1.data_cnt); 8224 extra_bytes = 8225 (uchar)((ushort)addr & 0x0003); 8226 if ((extra_bytes != 0) 8227 && 8228 ((scsiq->q2. 8229 tag_code & 8230 ASC_TAG_FLAG_EXTRA_BYTES) 8231 == 0)) { 8232 data_cnt = 8233 le32_to_cpu(scsiq->q1. 8234 data_cnt); 8235 if (((ushort)data_cnt & 0x01FF) 8236 == 0) { 8237 scsiq->q2.tag_code |= 8238 ASC_TAG_FLAG_EXTRA_BYTES; 8239 data_cnt -= extra_bytes; 8240 scsiq->q1.data_cnt = 8241 cpu_to_le32 8242 (data_cnt); 8243 scsiq->q1.extra_bytes = 8244 extra_bytes; 8245 } 8246 } 8247 } 8248 } 8249 } 8250 n_q_required = 1; 8251 if ((AscGetNumOfFreeQueue(asc_dvc, target_ix, 1) >= 1) || 8252 ((scsiq->q1.cntl & QC_URGENT) != 0)) { 8253 if ((sta = AscSendScsiQueue(asc_dvc, scsiq, 8254 n_q_required)) == 1) { 8255 asc_dvc->in_critical_cnt--; 8256 return (sta); 8257 } 8258 } 8259 } 8260 asc_dvc->in_critical_cnt--; 8261 return (sta); 8262 } 8263 8264 /* 8265 * AdvExeScsiQueue() - Send a request to the RISC microcode program. 8266 * 8267 * Allocate a carrier structure, point the carrier to the ADV_SCSI_REQ_Q, 8268 * add the carrier to the ICQ (Initiator Command Queue), and tickle the 8269 * RISC to notify it a new command is ready to be executed. 8270 * 8271 * If 'done_status' is not set to QD_DO_RETRY, then 'error_retry' will be 8272 * set to SCSI_MAX_RETRY. 8273 * 8274 * Multi-byte fields in the ADV_SCSI_REQ_Q that are used by the microcode 8275 * for DMA addresses or math operations are byte swapped to little-endian 8276 * order. 8277 * 8278 * Return: 8279 * ADV_SUCCESS(1) - The request was successfully queued. 8280 * ADV_BUSY(0) - Resource unavailable; Retry again after pending 8281 * request completes. 8282 * ADV_ERROR(-1) - Invalid ADV_SCSI_REQ_Q request structure 8283 * host IC error. 8284 */ AdvExeScsiQueue(ADV_DVC_VAR * asc_dvc,adv_req_t * reqp)8285 static int AdvExeScsiQueue(ADV_DVC_VAR *asc_dvc, adv_req_t *reqp) 8286 { 8287 AdvPortAddr iop_base; 8288 ADV_CARR_T *new_carrp; 8289 ADV_SCSI_REQ_Q *scsiq = &reqp->scsi_req_q; 8290 8291 /* 8292 * The ADV_SCSI_REQ_Q 'target_id' field should never exceed ADV_MAX_TID. 8293 */ 8294 if (scsiq->target_id > ADV_MAX_TID) { 8295 scsiq->host_status = QHSTA_M_INVALID_DEVICE; 8296 scsiq->done_status = QD_WITH_ERROR; 8297 return ADV_ERROR; 8298 } 8299 8300 iop_base = asc_dvc->iop_base; 8301 8302 /* 8303 * Allocate a carrier ensuring at least one carrier always 8304 * remains on the freelist and initialize fields. 8305 */ 8306 new_carrp = adv_get_next_carrier(asc_dvc); 8307 if (!new_carrp) { 8308 ASC_DBG(1, "No free carriers\n"); 8309 return ADV_BUSY; 8310 } 8311 8312 asc_dvc->carr_pending_cnt++; 8313 8314 /* Save virtual and physical address of ADV_SCSI_REQ_Q and carrier. */ 8315 scsiq->scsiq_ptr = cpu_to_le32(scsiq->srb_tag); 8316 scsiq->scsiq_rptr = cpu_to_le32(reqp->req_addr); 8317 8318 scsiq->carr_va = asc_dvc->icq_sp->carr_va; 8319 scsiq->carr_pa = asc_dvc->icq_sp->carr_pa; 8320 8321 /* 8322 * Use the current stopper to send the ADV_SCSI_REQ_Q command to 8323 * the microcode. The newly allocated stopper will become the new 8324 * stopper. 8325 */ 8326 asc_dvc->icq_sp->areq_vpa = scsiq->scsiq_rptr; 8327 8328 /* 8329 * Set the 'next_vpa' pointer for the old stopper to be the 8330 * physical address of the new stopper. The RISC can only 8331 * follow physical addresses. 8332 */ 8333 asc_dvc->icq_sp->next_vpa = new_carrp->carr_pa; 8334 8335 /* 8336 * Set the host adapter stopper pointer to point to the new carrier. 8337 */ 8338 asc_dvc->icq_sp = new_carrp; 8339 8340 if (asc_dvc->chip_type == ADV_CHIP_ASC3550 || 8341 asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { 8342 /* 8343 * Tickle the RISC to tell it to read its Command Queue Head pointer. 8344 */ 8345 AdvWriteByteRegister(iop_base, IOPB_TICKLE, ADV_TICKLE_A); 8346 if (asc_dvc->chip_type == ADV_CHIP_ASC3550) { 8347 /* 8348 * Clear the tickle value. In the ASC-3550 the RISC flag 8349 * command 'clr_tickle_a' does not work unless the host 8350 * value is cleared. 8351 */ 8352 AdvWriteByteRegister(iop_base, IOPB_TICKLE, 8353 ADV_TICKLE_NOP); 8354 } 8355 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { 8356 /* 8357 * Notify the RISC a carrier is ready by writing the physical 8358 * address of the new carrier stopper to the COMMA register. 8359 */ 8360 AdvWriteDWordRegister(iop_base, IOPDW_COMMA, 8361 le32_to_cpu(new_carrp->carr_pa)); 8362 } 8363 8364 return ADV_SUCCESS; 8365 } 8366 8367 /* 8368 * Execute a single 'struct scsi_cmnd'. 8369 */ asc_execute_scsi_cmnd(struct scsi_cmnd * scp)8370 static int asc_execute_scsi_cmnd(struct scsi_cmnd *scp) 8371 { 8372 int ret, err_code; 8373 struct asc_board *boardp = shost_priv(scp->device->host); 8374 8375 ASC_DBG(1, "scp 0x%p\n", scp); 8376 8377 if (ASC_NARROW_BOARD(boardp)) { 8378 ASC_DVC_VAR *asc_dvc = &boardp->dvc_var.asc_dvc_var; 8379 struct asc_scsi_q asc_scsi_q; 8380 8381 ret = asc_build_req(boardp, scp, &asc_scsi_q); 8382 if (ret != ASC_NOERROR) { 8383 ASC_STATS(scp->device->host, build_error); 8384 return ret; 8385 } 8386 8387 ret = AscExeScsiQueue(asc_dvc, &asc_scsi_q); 8388 kfree(asc_scsi_q.sg_head); 8389 err_code = asc_dvc->err_code; 8390 } else { 8391 ADV_DVC_VAR *adv_dvc = &boardp->dvc_var.adv_dvc_var; 8392 adv_req_t *adv_reqp; 8393 8394 switch (adv_build_req(boardp, scp, &adv_reqp)) { 8395 case ASC_NOERROR: 8396 ASC_DBG(3, "adv_build_req ASC_NOERROR\n"); 8397 break; 8398 case ASC_BUSY: 8399 ASC_DBG(1, "adv_build_req ASC_BUSY\n"); 8400 /* 8401 * The asc_stats fields 'adv_build_noreq' and 8402 * 'adv_build_nosg' count wide board busy conditions. 8403 * They are updated in adv_build_req and 8404 * adv_get_sglist, respectively. 8405 */ 8406 return ASC_BUSY; 8407 case ASC_ERROR: 8408 default: 8409 ASC_DBG(1, "adv_build_req ASC_ERROR\n"); 8410 ASC_STATS(scp->device->host, build_error); 8411 return ASC_ERROR; 8412 } 8413 8414 ret = AdvExeScsiQueue(adv_dvc, adv_reqp); 8415 err_code = adv_dvc->err_code; 8416 } 8417 8418 switch (ret) { 8419 case ASC_NOERROR: 8420 ASC_STATS(scp->device->host, exe_noerror); 8421 /* 8422 * Increment monotonically increasing per device 8423 * successful request counter. Wrapping doesn't matter. 8424 */ 8425 boardp->reqcnt[scp->device->id]++; 8426 ASC_DBG(1, "ExeScsiQueue() ASC_NOERROR\n"); 8427 break; 8428 case ASC_BUSY: 8429 ASC_DBG(1, "ExeScsiQueue() ASC_BUSY\n"); 8430 ASC_STATS(scp->device->host, exe_busy); 8431 break; 8432 case ASC_ERROR: 8433 scmd_printk(KERN_ERR, scp, "ExeScsiQueue() ASC_ERROR, " 8434 "err_code 0x%x\n", err_code); 8435 ASC_STATS(scp->device->host, exe_error); 8436 set_host_byte(scp, DID_ERROR); 8437 break; 8438 default: 8439 scmd_printk(KERN_ERR, scp, "ExeScsiQueue() unknown, " 8440 "err_code 0x%x\n", err_code); 8441 ASC_STATS(scp->device->host, exe_unknown); 8442 set_host_byte(scp, DID_ERROR); 8443 break; 8444 } 8445 8446 ASC_DBG(1, "end\n"); 8447 return ret; 8448 } 8449 8450 /* 8451 * advansys_queuecommand() - interrupt-driven I/O entrypoint. 8452 * 8453 * This function always returns 0. Command return status is saved 8454 * in the 'scp' result field. 8455 */ 8456 static int advansys_queuecommand_lck(struct scsi_cmnd * scp,void (* done)(struct scsi_cmnd *))8457 advansys_queuecommand_lck(struct scsi_cmnd *scp, void (*done)(struct scsi_cmnd *)) 8458 { 8459 struct Scsi_Host *shost = scp->device->host; 8460 int asc_res, result = 0; 8461 8462 ASC_STATS(shost, queuecommand); 8463 scp->scsi_done = done; 8464 8465 asc_res = asc_execute_scsi_cmnd(scp); 8466 8467 switch (asc_res) { 8468 case ASC_NOERROR: 8469 break; 8470 case ASC_BUSY: 8471 result = SCSI_MLQUEUE_HOST_BUSY; 8472 break; 8473 case ASC_ERROR: 8474 default: 8475 asc_scsi_done(scp); 8476 break; 8477 } 8478 8479 return result; 8480 } 8481 DEF_SCSI_QCMD(advansys_queuecommand)8482 static DEF_SCSI_QCMD(advansys_queuecommand) 8483 8484 static ushort AscGetEisaChipCfg(PortAddr iop_base) 8485 { 8486 PortAddr eisa_cfg_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | 8487 (PortAddr) (ASC_EISA_CFG_IOP_MASK); 8488 return inpw(eisa_cfg_iop); 8489 } 8490 8491 /* 8492 * Return the BIOS address of the adapter at the specified 8493 * I/O port and with the specified bus type. 8494 */ AscGetChipBiosAddress(PortAddr iop_base,unsigned short bus_type)8495 static unsigned short AscGetChipBiosAddress(PortAddr iop_base, 8496 unsigned short bus_type) 8497 { 8498 unsigned short cfg_lsw; 8499 unsigned short bios_addr; 8500 8501 /* 8502 * The PCI BIOS is re-located by the motherboard BIOS. Because 8503 * of this the driver can not determine where a PCI BIOS is 8504 * loaded and executes. 8505 */ 8506 if (bus_type & ASC_IS_PCI) 8507 return 0; 8508 8509 if ((bus_type & ASC_IS_EISA) != 0) { 8510 cfg_lsw = AscGetEisaChipCfg(iop_base); 8511 cfg_lsw &= 0x000F; 8512 bios_addr = ASC_BIOS_MIN_ADDR + cfg_lsw * ASC_BIOS_BANK_SIZE; 8513 return bios_addr; 8514 } 8515 8516 cfg_lsw = AscGetChipCfgLsw(iop_base); 8517 bios_addr = ASC_BIOS_MIN_ADDR + (cfg_lsw >> 12) * ASC_BIOS_BANK_SIZE; 8518 return bios_addr; 8519 } 8520 AscSetChipScsiID(PortAddr iop_base,uchar new_host_id)8521 static uchar AscSetChipScsiID(PortAddr iop_base, uchar new_host_id) 8522 { 8523 ushort cfg_lsw; 8524 8525 if (AscGetChipScsiID(iop_base) == new_host_id) { 8526 return (new_host_id); 8527 } 8528 cfg_lsw = AscGetChipCfgLsw(iop_base); 8529 cfg_lsw &= 0xF8FF; 8530 cfg_lsw |= (ushort)((new_host_id & ASC_MAX_TID) << 8); 8531 AscSetChipCfgLsw(iop_base, cfg_lsw); 8532 return (AscGetChipScsiID(iop_base)); 8533 } 8534 AscGetChipScsiCtrl(PortAddr iop_base)8535 static unsigned char AscGetChipScsiCtrl(PortAddr iop_base) 8536 { 8537 unsigned char sc; 8538 8539 AscSetBank(iop_base, 1); 8540 sc = inp(iop_base + IOP_REG_SC); 8541 AscSetBank(iop_base, 0); 8542 return sc; 8543 } 8544 AscGetChipVersion(PortAddr iop_base,unsigned short bus_type)8545 static unsigned char AscGetChipVersion(PortAddr iop_base, 8546 unsigned short bus_type) 8547 { 8548 if (bus_type & ASC_IS_EISA) { 8549 PortAddr eisa_iop; 8550 unsigned char revision; 8551 eisa_iop = (PortAddr) ASC_GET_EISA_SLOT(iop_base) | 8552 (PortAddr) ASC_EISA_REV_IOP_MASK; 8553 revision = inp(eisa_iop); 8554 return ASC_CHIP_MIN_VER_EISA - 1 + revision; 8555 } 8556 return AscGetChipVerNo(iop_base); 8557 } 8558 AscStopQueueExe(PortAddr iop_base)8559 static int AscStopQueueExe(PortAddr iop_base) 8560 { 8561 int count = 0; 8562 8563 if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) == 0) { 8564 AscWriteLramByte(iop_base, ASCV_STOP_CODE_B, 8565 ASC_STOP_REQ_RISC_STOP); 8566 do { 8567 if (AscReadLramByte(iop_base, ASCV_STOP_CODE_B) & 8568 ASC_STOP_ACK_RISC_STOP) { 8569 return (1); 8570 } 8571 mdelay(100); 8572 } while (count++ < 20); 8573 } 8574 return (0); 8575 } 8576 AscGetMaxDmaCount(ushort bus_type)8577 static unsigned int AscGetMaxDmaCount(ushort bus_type) 8578 { 8579 if (bus_type & (ASC_IS_EISA | ASC_IS_VL)) 8580 return ASC_MAX_VL_DMA_COUNT; 8581 return ASC_MAX_PCI_DMA_COUNT; 8582 } 8583 AscInitAscDvcVar(ASC_DVC_VAR * asc_dvc)8584 static void AscInitAscDvcVar(ASC_DVC_VAR *asc_dvc) 8585 { 8586 int i; 8587 PortAddr iop_base; 8588 uchar chip_version; 8589 8590 iop_base = asc_dvc->iop_base; 8591 asc_dvc->err_code = 0; 8592 if ((asc_dvc->bus_type & 8593 (ASC_IS_PCI | ASC_IS_EISA | ASC_IS_VL)) == 0) { 8594 asc_dvc->err_code |= ASC_IERR_NO_BUS_TYPE; 8595 } 8596 AscSetChipControl(iop_base, CC_HALT); 8597 AscSetChipStatus(iop_base, 0); 8598 asc_dvc->bug_fix_cntl = 0; 8599 asc_dvc->pci_fix_asyn_xfer = 0; 8600 asc_dvc->pci_fix_asyn_xfer_always = 0; 8601 /* asc_dvc->init_state initialized in AscInitGetConfig(). */ 8602 asc_dvc->sdtr_done = 0; 8603 asc_dvc->cur_total_qng = 0; 8604 asc_dvc->is_in_int = false; 8605 asc_dvc->in_critical_cnt = 0; 8606 asc_dvc->last_q_shortage = 0; 8607 asc_dvc->use_tagged_qng = 0; 8608 asc_dvc->no_scam = 0; 8609 asc_dvc->unit_not_ready = 0; 8610 asc_dvc->queue_full_or_busy = 0; 8611 asc_dvc->redo_scam = 0; 8612 asc_dvc->res2 = 0; 8613 asc_dvc->min_sdtr_index = 0; 8614 asc_dvc->cfg->can_tagged_qng = 0; 8615 asc_dvc->cfg->cmd_qng_enabled = 0; 8616 asc_dvc->dvc_cntl = ASC_DEF_DVC_CNTL; 8617 asc_dvc->init_sdtr = 0; 8618 asc_dvc->max_total_qng = ASC_DEF_MAX_TOTAL_QNG; 8619 asc_dvc->scsi_reset_wait = 3; 8620 asc_dvc->start_motor = ASC_SCSI_WIDTH_BIT_SET; 8621 asc_dvc->max_dma_count = AscGetMaxDmaCount(asc_dvc->bus_type); 8622 asc_dvc->cfg->sdtr_enable = ASC_SCSI_WIDTH_BIT_SET; 8623 asc_dvc->cfg->disc_enable = ASC_SCSI_WIDTH_BIT_SET; 8624 asc_dvc->cfg->chip_scsi_id = ASC_DEF_CHIP_SCSI_ID; 8625 chip_version = AscGetChipVersion(iop_base, asc_dvc->bus_type); 8626 asc_dvc->cfg->chip_version = chip_version; 8627 asc_dvc->sdtr_period_tbl = asc_syn_xfer_period; 8628 asc_dvc->max_sdtr_index = 7; 8629 if ((asc_dvc->bus_type & ASC_IS_PCI) && 8630 (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3150)) { 8631 asc_dvc->bus_type = ASC_IS_PCI_ULTRA; 8632 asc_dvc->sdtr_period_tbl = asc_syn_ultra_xfer_period; 8633 asc_dvc->max_sdtr_index = 15; 8634 if (chip_version == ASC_CHIP_VER_PCI_ULTRA_3150) { 8635 AscSetExtraControl(iop_base, 8636 (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); 8637 } else if (chip_version >= ASC_CHIP_VER_PCI_ULTRA_3050) { 8638 AscSetExtraControl(iop_base, 8639 (SEC_ACTIVE_NEGATE | 8640 SEC_ENABLE_FILTER)); 8641 } 8642 } 8643 if (asc_dvc->bus_type == ASC_IS_PCI) { 8644 AscSetExtraControl(iop_base, 8645 (SEC_ACTIVE_NEGATE | SEC_SLEW_RATE)); 8646 } 8647 8648 for (i = 0; i <= ASC_MAX_TID; i++) { 8649 asc_dvc->cur_dvc_qng[i] = 0; 8650 asc_dvc->max_dvc_qng[i] = ASC_MAX_SCSI1_QNG; 8651 asc_dvc->scsiq_busy_head[i] = (ASC_SCSI_Q *)0L; 8652 asc_dvc->scsiq_busy_tail[i] = (ASC_SCSI_Q *)0L; 8653 asc_dvc->cfg->max_tag_qng[i] = ASC_MAX_INRAM_TAG_QNG; 8654 } 8655 } 8656 AscWriteEEPCmdReg(PortAddr iop_base,uchar cmd_reg)8657 static int AscWriteEEPCmdReg(PortAddr iop_base, uchar cmd_reg) 8658 { 8659 int retry; 8660 8661 for (retry = 0; retry < ASC_EEP_MAX_RETRY; retry++) { 8662 unsigned char read_back; 8663 AscSetChipEEPCmd(iop_base, cmd_reg); 8664 mdelay(1); 8665 read_back = AscGetChipEEPCmd(iop_base); 8666 if (read_back == cmd_reg) 8667 return 1; 8668 } 8669 return 0; 8670 } 8671 AscWaitEEPRead(void)8672 static void AscWaitEEPRead(void) 8673 { 8674 mdelay(1); 8675 } 8676 AscReadEEPWord(PortAddr iop_base,uchar addr)8677 static ushort AscReadEEPWord(PortAddr iop_base, uchar addr) 8678 { 8679 ushort read_wval; 8680 uchar cmd_reg; 8681 8682 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); 8683 AscWaitEEPRead(); 8684 cmd_reg = addr | ASC_EEP_CMD_READ; 8685 AscWriteEEPCmdReg(iop_base, cmd_reg); 8686 AscWaitEEPRead(); 8687 read_wval = AscGetChipEEPData(iop_base); 8688 AscWaitEEPRead(); 8689 return read_wval; 8690 } 8691 AscGetEEPConfig(PortAddr iop_base,ASCEEP_CONFIG * cfg_buf,ushort bus_type)8692 static ushort AscGetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, 8693 ushort bus_type) 8694 { 8695 ushort wval; 8696 ushort sum; 8697 ushort *wbuf; 8698 int cfg_beg; 8699 int cfg_end; 8700 int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; 8701 int s_addr; 8702 8703 wbuf = (ushort *)cfg_buf; 8704 sum = 0; 8705 /* Read two config words; Byte-swapping done by AscReadEEPWord(). */ 8706 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { 8707 *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); 8708 sum += *wbuf; 8709 } 8710 if (bus_type & ASC_IS_VL) { 8711 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; 8712 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; 8713 } else { 8714 cfg_beg = ASC_EEP_DVC_CFG_BEG; 8715 cfg_end = ASC_EEP_MAX_DVC_ADDR; 8716 } 8717 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { 8718 wval = AscReadEEPWord(iop_base, (uchar)s_addr); 8719 if (s_addr <= uchar_end_in_config) { 8720 /* 8721 * Swap all char fields - must unswap bytes already swapped 8722 * by AscReadEEPWord(). 8723 */ 8724 *wbuf = le16_to_cpu(wval); 8725 } else { 8726 /* Don't swap word field at the end - cntl field. */ 8727 *wbuf = wval; 8728 } 8729 sum += wval; /* Checksum treats all EEPROM data as words. */ 8730 } 8731 /* 8732 * Read the checksum word which will be compared against 'sum' 8733 * by the caller. Word field already swapped. 8734 */ 8735 *wbuf = AscReadEEPWord(iop_base, (uchar)s_addr); 8736 return sum; 8737 } 8738 AscTestExternalLram(ASC_DVC_VAR * asc_dvc)8739 static int AscTestExternalLram(ASC_DVC_VAR *asc_dvc) 8740 { 8741 PortAddr iop_base; 8742 ushort q_addr; 8743 ushort saved_word; 8744 int sta; 8745 8746 iop_base = asc_dvc->iop_base; 8747 sta = 0; 8748 q_addr = ASC_QNO_TO_QADDR(241); 8749 saved_word = AscReadLramWord(iop_base, q_addr); 8750 AscSetChipLramAddr(iop_base, q_addr); 8751 AscSetChipLramData(iop_base, 0x55AA); 8752 mdelay(10); 8753 AscSetChipLramAddr(iop_base, q_addr); 8754 if (AscGetChipLramData(iop_base) == 0x55AA) { 8755 sta = 1; 8756 AscWriteLramWord(iop_base, q_addr, saved_word); 8757 } 8758 return (sta); 8759 } 8760 AscWaitEEPWrite(void)8761 static void AscWaitEEPWrite(void) 8762 { 8763 mdelay(20); 8764 } 8765 AscWriteEEPDataReg(PortAddr iop_base,ushort data_reg)8766 static int AscWriteEEPDataReg(PortAddr iop_base, ushort data_reg) 8767 { 8768 ushort read_back; 8769 int retry; 8770 8771 retry = 0; 8772 while (true) { 8773 AscSetChipEEPData(iop_base, data_reg); 8774 mdelay(1); 8775 read_back = AscGetChipEEPData(iop_base); 8776 if (read_back == data_reg) { 8777 return (1); 8778 } 8779 if (retry++ > ASC_EEP_MAX_RETRY) { 8780 return (0); 8781 } 8782 } 8783 } 8784 AscWriteEEPWord(PortAddr iop_base,uchar addr,ushort word_val)8785 static ushort AscWriteEEPWord(PortAddr iop_base, uchar addr, ushort word_val) 8786 { 8787 ushort read_wval; 8788 8789 read_wval = AscReadEEPWord(iop_base, addr); 8790 if (read_wval != word_val) { 8791 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_ABLE); 8792 AscWaitEEPRead(); 8793 AscWriteEEPDataReg(iop_base, word_val); 8794 AscWaitEEPRead(); 8795 AscWriteEEPCmdReg(iop_base, 8796 (uchar)((uchar)ASC_EEP_CMD_WRITE | addr)); 8797 AscWaitEEPWrite(); 8798 AscWriteEEPCmdReg(iop_base, ASC_EEP_CMD_WRITE_DISABLE); 8799 AscWaitEEPRead(); 8800 return (AscReadEEPWord(iop_base, addr)); 8801 } 8802 return (read_wval); 8803 } 8804 AscSetEEPConfigOnce(PortAddr iop_base,ASCEEP_CONFIG * cfg_buf,ushort bus_type)8805 static int AscSetEEPConfigOnce(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, 8806 ushort bus_type) 8807 { 8808 int n_error; 8809 ushort *wbuf; 8810 ushort word; 8811 ushort sum; 8812 int s_addr; 8813 int cfg_beg; 8814 int cfg_end; 8815 int uchar_end_in_config = ASC_EEP_MAX_DVC_ADDR - 2; 8816 8817 wbuf = (ushort *)cfg_buf; 8818 n_error = 0; 8819 sum = 0; 8820 /* Write two config words; AscWriteEEPWord() will swap bytes. */ 8821 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { 8822 sum += *wbuf; 8823 if (*wbuf != AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { 8824 n_error++; 8825 } 8826 } 8827 if (bus_type & ASC_IS_VL) { 8828 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; 8829 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; 8830 } else { 8831 cfg_beg = ASC_EEP_DVC_CFG_BEG; 8832 cfg_end = ASC_EEP_MAX_DVC_ADDR; 8833 } 8834 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { 8835 if (s_addr <= uchar_end_in_config) { 8836 /* 8837 * This is a char field. Swap char fields before they are 8838 * swapped again by AscWriteEEPWord(). 8839 */ 8840 word = cpu_to_le16(*wbuf); 8841 if (word != 8842 AscWriteEEPWord(iop_base, (uchar)s_addr, word)) { 8843 n_error++; 8844 } 8845 } else { 8846 /* Don't swap word field at the end - cntl field. */ 8847 if (*wbuf != 8848 AscWriteEEPWord(iop_base, (uchar)s_addr, *wbuf)) { 8849 n_error++; 8850 } 8851 } 8852 sum += *wbuf; /* Checksum calculated from word values. */ 8853 } 8854 /* Write checksum word. It will be swapped by AscWriteEEPWord(). */ 8855 *wbuf = sum; 8856 if (sum != AscWriteEEPWord(iop_base, (uchar)s_addr, sum)) { 8857 n_error++; 8858 } 8859 8860 /* Read EEPROM back again. */ 8861 wbuf = (ushort *)cfg_buf; 8862 /* 8863 * Read two config words; Byte-swapping done by AscReadEEPWord(). 8864 */ 8865 for (s_addr = 0; s_addr < 2; s_addr++, wbuf++) { 8866 if (*wbuf != AscReadEEPWord(iop_base, (uchar)s_addr)) { 8867 n_error++; 8868 } 8869 } 8870 if (bus_type & ASC_IS_VL) { 8871 cfg_beg = ASC_EEP_DVC_CFG_BEG_VL; 8872 cfg_end = ASC_EEP_MAX_DVC_ADDR_VL; 8873 } else { 8874 cfg_beg = ASC_EEP_DVC_CFG_BEG; 8875 cfg_end = ASC_EEP_MAX_DVC_ADDR; 8876 } 8877 for (s_addr = cfg_beg; s_addr <= (cfg_end - 1); s_addr++, wbuf++) { 8878 if (s_addr <= uchar_end_in_config) { 8879 /* 8880 * Swap all char fields. Must unswap bytes already swapped 8881 * by AscReadEEPWord(). 8882 */ 8883 word = 8884 le16_to_cpu(AscReadEEPWord 8885 (iop_base, (uchar)s_addr)); 8886 } else { 8887 /* Don't swap word field at the end - cntl field. */ 8888 word = AscReadEEPWord(iop_base, (uchar)s_addr); 8889 } 8890 if (*wbuf != word) { 8891 n_error++; 8892 } 8893 } 8894 /* Read checksum; Byte swapping not needed. */ 8895 if (AscReadEEPWord(iop_base, (uchar)s_addr) != sum) { 8896 n_error++; 8897 } 8898 return n_error; 8899 } 8900 AscSetEEPConfig(PortAddr iop_base,ASCEEP_CONFIG * cfg_buf,ushort bus_type)8901 static int AscSetEEPConfig(PortAddr iop_base, ASCEEP_CONFIG *cfg_buf, 8902 ushort bus_type) 8903 { 8904 int retry; 8905 int n_error; 8906 8907 retry = 0; 8908 while (true) { 8909 if ((n_error = AscSetEEPConfigOnce(iop_base, cfg_buf, 8910 bus_type)) == 0) { 8911 break; 8912 } 8913 if (++retry > ASC_EEP_MAX_RETRY) { 8914 break; 8915 } 8916 } 8917 return n_error; 8918 } 8919 AscInitFromEEP(ASC_DVC_VAR * asc_dvc)8920 static int AscInitFromEEP(ASC_DVC_VAR *asc_dvc) 8921 { 8922 ASCEEP_CONFIG eep_config_buf; 8923 ASCEEP_CONFIG *eep_config; 8924 PortAddr iop_base; 8925 ushort chksum; 8926 ushort warn_code; 8927 ushort cfg_msw, cfg_lsw; 8928 int i; 8929 int write_eep = 0; 8930 8931 iop_base = asc_dvc->iop_base; 8932 warn_code = 0; 8933 AscWriteLramWord(iop_base, ASCV_HALTCODE_W, 0x00FE); 8934 AscStopQueueExe(iop_base); 8935 if ((AscStopChip(iop_base)) || 8936 (AscGetChipScsiCtrl(iop_base) != 0)) { 8937 asc_dvc->init_state |= ASC_INIT_RESET_SCSI_DONE; 8938 AscResetChipAndScsiBus(asc_dvc); 8939 mdelay(asc_dvc->scsi_reset_wait * 1000); /* XXX: msleep? */ 8940 } 8941 if (!AscIsChipHalted(iop_base)) { 8942 asc_dvc->err_code |= ASC_IERR_START_STOP_CHIP; 8943 return (warn_code); 8944 } 8945 AscSetPCAddr(iop_base, ASC_MCODE_START_ADDR); 8946 if (AscGetPCAddr(iop_base) != ASC_MCODE_START_ADDR) { 8947 asc_dvc->err_code |= ASC_IERR_SET_PC_ADDR; 8948 return (warn_code); 8949 } 8950 eep_config = (ASCEEP_CONFIG *)&eep_config_buf; 8951 cfg_msw = AscGetChipCfgMsw(iop_base); 8952 cfg_lsw = AscGetChipCfgLsw(iop_base); 8953 if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { 8954 cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; 8955 warn_code |= ASC_WARN_CFG_MSW_RECOVER; 8956 AscSetChipCfgMsw(iop_base, cfg_msw); 8957 } 8958 chksum = AscGetEEPConfig(iop_base, eep_config, asc_dvc->bus_type); 8959 ASC_DBG(1, "chksum 0x%x\n", chksum); 8960 if (chksum == 0) { 8961 chksum = 0xaa55; 8962 } 8963 if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { 8964 warn_code |= ASC_WARN_AUTO_CONFIG; 8965 if (asc_dvc->cfg->chip_version == 3) { 8966 if (eep_config->cfg_lsw != cfg_lsw) { 8967 warn_code |= ASC_WARN_EEPROM_RECOVER; 8968 eep_config->cfg_lsw = 8969 AscGetChipCfgLsw(iop_base); 8970 } 8971 if (eep_config->cfg_msw != cfg_msw) { 8972 warn_code |= ASC_WARN_EEPROM_RECOVER; 8973 eep_config->cfg_msw = 8974 AscGetChipCfgMsw(iop_base); 8975 } 8976 } 8977 } 8978 eep_config->cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; 8979 eep_config->cfg_lsw |= ASC_CFG0_HOST_INT_ON; 8980 ASC_DBG(1, "eep_config->chksum 0x%x\n", eep_config->chksum); 8981 if (chksum != eep_config->chksum) { 8982 if (AscGetChipVersion(iop_base, asc_dvc->bus_type) == 8983 ASC_CHIP_VER_PCI_ULTRA_3050) { 8984 ASC_DBG(1, "chksum error ignored; EEPROM-less board\n"); 8985 eep_config->init_sdtr = 0xFF; 8986 eep_config->disc_enable = 0xFF; 8987 eep_config->start_motor = 0xFF; 8988 eep_config->use_cmd_qng = 0; 8989 eep_config->max_total_qng = 0xF0; 8990 eep_config->max_tag_qng = 0x20; 8991 eep_config->cntl = 0xBFFF; 8992 ASC_EEP_SET_CHIP_ID(eep_config, 7); 8993 eep_config->no_scam = 0; 8994 eep_config->adapter_info[0] = 0; 8995 eep_config->adapter_info[1] = 0; 8996 eep_config->adapter_info[2] = 0; 8997 eep_config->adapter_info[3] = 0; 8998 eep_config->adapter_info[4] = 0; 8999 /* Indicate EEPROM-less board. */ 9000 eep_config->adapter_info[5] = 0xBB; 9001 } else { 9002 ASC_PRINT 9003 ("AscInitFromEEP: EEPROM checksum error; Will try to re-write EEPROM.\n"); 9004 write_eep = 1; 9005 warn_code |= ASC_WARN_EEPROM_CHKSUM; 9006 } 9007 } 9008 asc_dvc->cfg->sdtr_enable = eep_config->init_sdtr; 9009 asc_dvc->cfg->disc_enable = eep_config->disc_enable; 9010 asc_dvc->cfg->cmd_qng_enabled = eep_config->use_cmd_qng; 9011 asc_dvc->start_motor = eep_config->start_motor; 9012 asc_dvc->dvc_cntl = eep_config->cntl; 9013 asc_dvc->no_scam = eep_config->no_scam; 9014 asc_dvc->cfg->adapter_info[0] = eep_config->adapter_info[0]; 9015 asc_dvc->cfg->adapter_info[1] = eep_config->adapter_info[1]; 9016 asc_dvc->cfg->adapter_info[2] = eep_config->adapter_info[2]; 9017 asc_dvc->cfg->adapter_info[3] = eep_config->adapter_info[3]; 9018 asc_dvc->cfg->adapter_info[4] = eep_config->adapter_info[4]; 9019 asc_dvc->cfg->adapter_info[5] = eep_config->adapter_info[5]; 9020 if (!AscTestExternalLram(asc_dvc)) { 9021 if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == 9022 ASC_IS_PCI_ULTRA)) { 9023 eep_config->max_total_qng = 9024 ASC_MAX_PCI_ULTRA_INRAM_TOTAL_QNG; 9025 eep_config->max_tag_qng = 9026 ASC_MAX_PCI_ULTRA_INRAM_TAG_QNG; 9027 } else { 9028 eep_config->cfg_msw |= 0x0800; 9029 cfg_msw |= 0x0800; 9030 AscSetChipCfgMsw(iop_base, cfg_msw); 9031 eep_config->max_total_qng = ASC_MAX_PCI_INRAM_TOTAL_QNG; 9032 eep_config->max_tag_qng = ASC_MAX_INRAM_TAG_QNG; 9033 } 9034 } else { 9035 } 9036 if (eep_config->max_total_qng < ASC_MIN_TOTAL_QNG) { 9037 eep_config->max_total_qng = ASC_MIN_TOTAL_QNG; 9038 } 9039 if (eep_config->max_total_qng > ASC_MAX_TOTAL_QNG) { 9040 eep_config->max_total_qng = ASC_MAX_TOTAL_QNG; 9041 } 9042 if (eep_config->max_tag_qng > eep_config->max_total_qng) { 9043 eep_config->max_tag_qng = eep_config->max_total_qng; 9044 } 9045 if (eep_config->max_tag_qng < ASC_MIN_TAG_Q_PER_DVC) { 9046 eep_config->max_tag_qng = ASC_MIN_TAG_Q_PER_DVC; 9047 } 9048 asc_dvc->max_total_qng = eep_config->max_total_qng; 9049 if ((eep_config->use_cmd_qng & eep_config->disc_enable) != 9050 eep_config->use_cmd_qng) { 9051 eep_config->disc_enable = eep_config->use_cmd_qng; 9052 warn_code |= ASC_WARN_CMD_QNG_CONFLICT; 9053 } 9054 ASC_EEP_SET_CHIP_ID(eep_config, 9055 ASC_EEP_GET_CHIP_ID(eep_config) & ASC_MAX_TID); 9056 asc_dvc->cfg->chip_scsi_id = ASC_EEP_GET_CHIP_ID(eep_config); 9057 if (((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) && 9058 !(asc_dvc->dvc_cntl & ASC_CNTL_SDTR_ENABLE_ULTRA)) { 9059 asc_dvc->min_sdtr_index = ASC_SDTR_ULTRA_PCI_10MB_INDEX; 9060 } 9061 9062 for (i = 0; i <= ASC_MAX_TID; i++) { 9063 asc_dvc->dos_int13_table[i] = eep_config->dos_int13_table[i]; 9064 asc_dvc->cfg->max_tag_qng[i] = eep_config->max_tag_qng; 9065 asc_dvc->cfg->sdtr_period_offset[i] = 9066 (uchar)(ASC_DEF_SDTR_OFFSET | 9067 (asc_dvc->min_sdtr_index << 4)); 9068 } 9069 eep_config->cfg_msw = AscGetChipCfgMsw(iop_base); 9070 if (write_eep) { 9071 if ((i = AscSetEEPConfig(iop_base, eep_config, 9072 asc_dvc->bus_type)) != 0) { 9073 ASC_PRINT1 9074 ("AscInitFromEEP: Failed to re-write EEPROM with %d errors.\n", 9075 i); 9076 } else { 9077 ASC_PRINT 9078 ("AscInitFromEEP: Successfully re-wrote EEPROM.\n"); 9079 } 9080 } 9081 return (warn_code); 9082 } 9083 AscInitGetConfig(struct Scsi_Host * shost)9084 static int AscInitGetConfig(struct Scsi_Host *shost) 9085 { 9086 struct asc_board *board = shost_priv(shost); 9087 ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var; 9088 unsigned short warn_code = 0; 9089 9090 asc_dvc->init_state = ASC_INIT_STATE_BEG_GET_CFG; 9091 if (asc_dvc->err_code != 0) 9092 return asc_dvc->err_code; 9093 9094 if (AscFindSignature(asc_dvc->iop_base)) { 9095 AscInitAscDvcVar(asc_dvc); 9096 warn_code = AscInitFromEEP(asc_dvc); 9097 asc_dvc->init_state |= ASC_INIT_STATE_END_GET_CFG; 9098 if (asc_dvc->scsi_reset_wait > ASC_MAX_SCSI_RESET_WAIT) 9099 asc_dvc->scsi_reset_wait = ASC_MAX_SCSI_RESET_WAIT; 9100 } else { 9101 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; 9102 } 9103 9104 switch (warn_code) { 9105 case 0: /* No error */ 9106 break; 9107 case ASC_WARN_IO_PORT_ROTATE: 9108 shost_printk(KERN_WARNING, shost, "I/O port address " 9109 "modified\n"); 9110 break; 9111 case ASC_WARN_AUTO_CONFIG: 9112 shost_printk(KERN_WARNING, shost, "I/O port increment switch " 9113 "enabled\n"); 9114 break; 9115 case ASC_WARN_EEPROM_CHKSUM: 9116 shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n"); 9117 break; 9118 case ASC_WARN_IRQ_MODIFIED: 9119 shost_printk(KERN_WARNING, shost, "IRQ modified\n"); 9120 break; 9121 case ASC_WARN_CMD_QNG_CONFLICT: 9122 shost_printk(KERN_WARNING, shost, "tag queuing enabled w/o " 9123 "disconnects\n"); 9124 break; 9125 default: 9126 shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n", 9127 warn_code); 9128 break; 9129 } 9130 9131 if (asc_dvc->err_code != 0) 9132 shost_printk(KERN_ERR, shost, "error 0x%x at init_state " 9133 "0x%x\n", asc_dvc->err_code, asc_dvc->init_state); 9134 9135 return asc_dvc->err_code; 9136 } 9137 AscInitSetConfig(struct pci_dev * pdev,struct Scsi_Host * shost)9138 static int AscInitSetConfig(struct pci_dev *pdev, struct Scsi_Host *shost) 9139 { 9140 struct asc_board *board = shost_priv(shost); 9141 ASC_DVC_VAR *asc_dvc = &board->dvc_var.asc_dvc_var; 9142 PortAddr iop_base = asc_dvc->iop_base; 9143 unsigned short cfg_msw; 9144 unsigned short warn_code = 0; 9145 9146 asc_dvc->init_state |= ASC_INIT_STATE_BEG_SET_CFG; 9147 if (asc_dvc->err_code != 0) 9148 return asc_dvc->err_code; 9149 if (!AscFindSignature(asc_dvc->iop_base)) { 9150 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; 9151 return asc_dvc->err_code; 9152 } 9153 9154 cfg_msw = AscGetChipCfgMsw(iop_base); 9155 if ((cfg_msw & ASC_CFG_MSW_CLR_MASK) != 0) { 9156 cfg_msw &= ~ASC_CFG_MSW_CLR_MASK; 9157 warn_code |= ASC_WARN_CFG_MSW_RECOVER; 9158 AscSetChipCfgMsw(iop_base, cfg_msw); 9159 } 9160 if ((asc_dvc->cfg->cmd_qng_enabled & asc_dvc->cfg->disc_enable) != 9161 asc_dvc->cfg->cmd_qng_enabled) { 9162 asc_dvc->cfg->disc_enable = asc_dvc->cfg->cmd_qng_enabled; 9163 warn_code |= ASC_WARN_CMD_QNG_CONFLICT; 9164 } 9165 if (AscGetChipStatus(iop_base) & CSW_AUTO_CONFIG) { 9166 warn_code |= ASC_WARN_AUTO_CONFIG; 9167 } 9168 #ifdef CONFIG_PCI 9169 if (asc_dvc->bus_type & ASC_IS_PCI) { 9170 cfg_msw &= 0xFFC0; 9171 AscSetChipCfgMsw(iop_base, cfg_msw); 9172 if ((asc_dvc->bus_type & ASC_IS_PCI_ULTRA) == ASC_IS_PCI_ULTRA) { 9173 } else { 9174 if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || 9175 (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { 9176 asc_dvc->bug_fix_cntl |= ASC_BUG_FIX_IF_NOT_DWB; 9177 asc_dvc->bug_fix_cntl |= 9178 ASC_BUG_FIX_ASYN_USE_SYN; 9179 } 9180 } 9181 } else 9182 #endif /* CONFIG_PCI */ 9183 if (AscSetChipScsiID(iop_base, asc_dvc->cfg->chip_scsi_id) != 9184 asc_dvc->cfg->chip_scsi_id) { 9185 asc_dvc->err_code |= ASC_IERR_SET_SCSI_ID; 9186 } 9187 9188 asc_dvc->init_state |= ASC_INIT_STATE_END_SET_CFG; 9189 9190 switch (warn_code) { 9191 case 0: /* No error. */ 9192 break; 9193 case ASC_WARN_IO_PORT_ROTATE: 9194 shost_printk(KERN_WARNING, shost, "I/O port address " 9195 "modified\n"); 9196 break; 9197 case ASC_WARN_AUTO_CONFIG: 9198 shost_printk(KERN_WARNING, shost, "I/O port increment switch " 9199 "enabled\n"); 9200 break; 9201 case ASC_WARN_EEPROM_CHKSUM: 9202 shost_printk(KERN_WARNING, shost, "EEPROM checksum error\n"); 9203 break; 9204 case ASC_WARN_IRQ_MODIFIED: 9205 shost_printk(KERN_WARNING, shost, "IRQ modified\n"); 9206 break; 9207 case ASC_WARN_CMD_QNG_CONFLICT: 9208 shost_printk(KERN_WARNING, shost, "tag queuing w/o " 9209 "disconnects\n"); 9210 break; 9211 default: 9212 shost_printk(KERN_WARNING, shost, "unknown warning: 0x%x\n", 9213 warn_code); 9214 break; 9215 } 9216 9217 if (asc_dvc->err_code != 0) 9218 shost_printk(KERN_ERR, shost, "error 0x%x at init_state " 9219 "0x%x\n", asc_dvc->err_code, asc_dvc->init_state); 9220 9221 return asc_dvc->err_code; 9222 } 9223 9224 /* 9225 * EEPROM Configuration. 9226 * 9227 * All drivers should use this structure to set the default EEPROM 9228 * configuration. The BIOS now uses this structure when it is built. 9229 * Additional structure information can be found in a_condor.h where 9230 * the structure is defined. 9231 * 9232 * The *_Field_IsChar structs are needed to correct for endianness. 9233 * These values are read from the board 16 bits at a time directly 9234 * into the structs. Because some fields are char, the values will be 9235 * in the wrong order. The *_Field_IsChar tells when to flip the 9236 * bytes. Data read and written to PCI memory is automatically swapped 9237 * on big-endian platforms so char fields read as words are actually being 9238 * unswapped on big-endian platforms. 9239 */ 9240 #ifdef CONFIG_PCI 9241 static ADVEEP_3550_CONFIG Default_3550_EEPROM_Config = { 9242 ADV_EEPROM_BIOS_ENABLE, /* cfg_lsw */ 9243 0x0000, /* cfg_msw */ 9244 0xFFFF, /* disc_enable */ 9245 0xFFFF, /* wdtr_able */ 9246 0xFFFF, /* sdtr_able */ 9247 0xFFFF, /* start_motor */ 9248 0xFFFF, /* tagqng_able */ 9249 0xFFFF, /* bios_scan */ 9250 0, /* scam_tolerant */ 9251 7, /* adapter_scsi_id */ 9252 0, /* bios_boot_delay */ 9253 3, /* scsi_reset_delay */ 9254 0, /* bios_id_lun */ 9255 0, /* termination */ 9256 0, /* reserved1 */ 9257 0xFFE7, /* bios_ctrl */ 9258 0xFFFF, /* ultra_able */ 9259 0, /* reserved2 */ 9260 ASC_DEF_MAX_HOST_QNG, /* max_host_qng */ 9261 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 9262 0, /* dvc_cntl */ 9263 0, /* bug_fix */ 9264 0, /* serial_number_word1 */ 9265 0, /* serial_number_word2 */ 9266 0, /* serial_number_word3 */ 9267 0, /* check_sum */ 9268 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} 9269 , /* oem_name[16] */ 9270 0, /* dvc_err_code */ 9271 0, /* adv_err_code */ 9272 0, /* adv_err_addr */ 9273 0, /* saved_dvc_err_code */ 9274 0, /* saved_adv_err_code */ 9275 0, /* saved_adv_err_addr */ 9276 0 /* num_of_err */ 9277 }; 9278 9279 static ADVEEP_3550_CONFIG ADVEEP_3550_Config_Field_IsChar = { 9280 0, /* cfg_lsw */ 9281 0, /* cfg_msw */ 9282 0, /* -disc_enable */ 9283 0, /* wdtr_able */ 9284 0, /* sdtr_able */ 9285 0, /* start_motor */ 9286 0, /* tagqng_able */ 9287 0, /* bios_scan */ 9288 0, /* scam_tolerant */ 9289 1, /* adapter_scsi_id */ 9290 1, /* bios_boot_delay */ 9291 1, /* scsi_reset_delay */ 9292 1, /* bios_id_lun */ 9293 1, /* termination */ 9294 1, /* reserved1 */ 9295 0, /* bios_ctrl */ 9296 0, /* ultra_able */ 9297 0, /* reserved2 */ 9298 1, /* max_host_qng */ 9299 1, /* max_dvc_qng */ 9300 0, /* dvc_cntl */ 9301 0, /* bug_fix */ 9302 0, /* serial_number_word1 */ 9303 0, /* serial_number_word2 */ 9304 0, /* serial_number_word3 */ 9305 0, /* check_sum */ 9306 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} 9307 , /* oem_name[16] */ 9308 0, /* dvc_err_code */ 9309 0, /* adv_err_code */ 9310 0, /* adv_err_addr */ 9311 0, /* saved_dvc_err_code */ 9312 0, /* saved_adv_err_code */ 9313 0, /* saved_adv_err_addr */ 9314 0 /* num_of_err */ 9315 }; 9316 9317 static ADVEEP_38C0800_CONFIG Default_38C0800_EEPROM_Config = { 9318 ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ 9319 0x0000, /* 01 cfg_msw */ 9320 0xFFFF, /* 02 disc_enable */ 9321 0xFFFF, /* 03 wdtr_able */ 9322 0x4444, /* 04 sdtr_speed1 */ 9323 0xFFFF, /* 05 start_motor */ 9324 0xFFFF, /* 06 tagqng_able */ 9325 0xFFFF, /* 07 bios_scan */ 9326 0, /* 08 scam_tolerant */ 9327 7, /* 09 adapter_scsi_id */ 9328 0, /* bios_boot_delay */ 9329 3, /* 10 scsi_reset_delay */ 9330 0, /* bios_id_lun */ 9331 0, /* 11 termination_se */ 9332 0, /* termination_lvd */ 9333 0xFFE7, /* 12 bios_ctrl */ 9334 0x4444, /* 13 sdtr_speed2 */ 9335 0x4444, /* 14 sdtr_speed3 */ 9336 ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ 9337 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 9338 0, /* 16 dvc_cntl */ 9339 0x4444, /* 17 sdtr_speed4 */ 9340 0, /* 18 serial_number_word1 */ 9341 0, /* 19 serial_number_word2 */ 9342 0, /* 20 serial_number_word3 */ 9343 0, /* 21 check_sum */ 9344 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} 9345 , /* 22-29 oem_name[16] */ 9346 0, /* 30 dvc_err_code */ 9347 0, /* 31 adv_err_code */ 9348 0, /* 32 adv_err_addr */ 9349 0, /* 33 saved_dvc_err_code */ 9350 0, /* 34 saved_adv_err_code */ 9351 0, /* 35 saved_adv_err_addr */ 9352 0, /* 36 reserved */ 9353 0, /* 37 reserved */ 9354 0, /* 38 reserved */ 9355 0, /* 39 reserved */ 9356 0, /* 40 reserved */ 9357 0, /* 41 reserved */ 9358 0, /* 42 reserved */ 9359 0, /* 43 reserved */ 9360 0, /* 44 reserved */ 9361 0, /* 45 reserved */ 9362 0, /* 46 reserved */ 9363 0, /* 47 reserved */ 9364 0, /* 48 reserved */ 9365 0, /* 49 reserved */ 9366 0, /* 50 reserved */ 9367 0, /* 51 reserved */ 9368 0, /* 52 reserved */ 9369 0, /* 53 reserved */ 9370 0, /* 54 reserved */ 9371 0, /* 55 reserved */ 9372 0, /* 56 cisptr_lsw */ 9373 0, /* 57 cisprt_msw */ 9374 PCI_VENDOR_ID_ASP, /* 58 subsysvid */ 9375 PCI_DEVICE_ID_38C0800_REV1, /* 59 subsysid */ 9376 0, /* 60 reserved */ 9377 0, /* 61 reserved */ 9378 0, /* 62 reserved */ 9379 0 /* 63 reserved */ 9380 }; 9381 9382 static ADVEEP_38C0800_CONFIG ADVEEP_38C0800_Config_Field_IsChar = { 9383 0, /* 00 cfg_lsw */ 9384 0, /* 01 cfg_msw */ 9385 0, /* 02 disc_enable */ 9386 0, /* 03 wdtr_able */ 9387 0, /* 04 sdtr_speed1 */ 9388 0, /* 05 start_motor */ 9389 0, /* 06 tagqng_able */ 9390 0, /* 07 bios_scan */ 9391 0, /* 08 scam_tolerant */ 9392 1, /* 09 adapter_scsi_id */ 9393 1, /* bios_boot_delay */ 9394 1, /* 10 scsi_reset_delay */ 9395 1, /* bios_id_lun */ 9396 1, /* 11 termination_se */ 9397 1, /* termination_lvd */ 9398 0, /* 12 bios_ctrl */ 9399 0, /* 13 sdtr_speed2 */ 9400 0, /* 14 sdtr_speed3 */ 9401 1, /* 15 max_host_qng */ 9402 1, /* max_dvc_qng */ 9403 0, /* 16 dvc_cntl */ 9404 0, /* 17 sdtr_speed4 */ 9405 0, /* 18 serial_number_word1 */ 9406 0, /* 19 serial_number_word2 */ 9407 0, /* 20 serial_number_word3 */ 9408 0, /* 21 check_sum */ 9409 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} 9410 , /* 22-29 oem_name[16] */ 9411 0, /* 30 dvc_err_code */ 9412 0, /* 31 adv_err_code */ 9413 0, /* 32 adv_err_addr */ 9414 0, /* 33 saved_dvc_err_code */ 9415 0, /* 34 saved_adv_err_code */ 9416 0, /* 35 saved_adv_err_addr */ 9417 0, /* 36 reserved */ 9418 0, /* 37 reserved */ 9419 0, /* 38 reserved */ 9420 0, /* 39 reserved */ 9421 0, /* 40 reserved */ 9422 0, /* 41 reserved */ 9423 0, /* 42 reserved */ 9424 0, /* 43 reserved */ 9425 0, /* 44 reserved */ 9426 0, /* 45 reserved */ 9427 0, /* 46 reserved */ 9428 0, /* 47 reserved */ 9429 0, /* 48 reserved */ 9430 0, /* 49 reserved */ 9431 0, /* 50 reserved */ 9432 0, /* 51 reserved */ 9433 0, /* 52 reserved */ 9434 0, /* 53 reserved */ 9435 0, /* 54 reserved */ 9436 0, /* 55 reserved */ 9437 0, /* 56 cisptr_lsw */ 9438 0, /* 57 cisprt_msw */ 9439 0, /* 58 subsysvid */ 9440 0, /* 59 subsysid */ 9441 0, /* 60 reserved */ 9442 0, /* 61 reserved */ 9443 0, /* 62 reserved */ 9444 0 /* 63 reserved */ 9445 }; 9446 9447 static ADVEEP_38C1600_CONFIG Default_38C1600_EEPROM_Config = { 9448 ADV_EEPROM_BIOS_ENABLE, /* 00 cfg_lsw */ 9449 0x0000, /* 01 cfg_msw */ 9450 0xFFFF, /* 02 disc_enable */ 9451 0xFFFF, /* 03 wdtr_able */ 9452 0x5555, /* 04 sdtr_speed1 */ 9453 0xFFFF, /* 05 start_motor */ 9454 0xFFFF, /* 06 tagqng_able */ 9455 0xFFFF, /* 07 bios_scan */ 9456 0, /* 08 scam_tolerant */ 9457 7, /* 09 adapter_scsi_id */ 9458 0, /* bios_boot_delay */ 9459 3, /* 10 scsi_reset_delay */ 9460 0, /* bios_id_lun */ 9461 0, /* 11 termination_se */ 9462 0, /* termination_lvd */ 9463 0xFFE7, /* 12 bios_ctrl */ 9464 0x5555, /* 13 sdtr_speed2 */ 9465 0x5555, /* 14 sdtr_speed3 */ 9466 ASC_DEF_MAX_HOST_QNG, /* 15 max_host_qng */ 9467 ASC_DEF_MAX_DVC_QNG, /* max_dvc_qng */ 9468 0, /* 16 dvc_cntl */ 9469 0x5555, /* 17 sdtr_speed4 */ 9470 0, /* 18 serial_number_word1 */ 9471 0, /* 19 serial_number_word2 */ 9472 0, /* 20 serial_number_word3 */ 9473 0, /* 21 check_sum */ 9474 {0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0} 9475 , /* 22-29 oem_name[16] */ 9476 0, /* 30 dvc_err_code */ 9477 0, /* 31 adv_err_code */ 9478 0, /* 32 adv_err_addr */ 9479 0, /* 33 saved_dvc_err_code */ 9480 0, /* 34 saved_adv_err_code */ 9481 0, /* 35 saved_adv_err_addr */ 9482 0, /* 36 reserved */ 9483 0, /* 37 reserved */ 9484 0, /* 38 reserved */ 9485 0, /* 39 reserved */ 9486 0, /* 40 reserved */ 9487 0, /* 41 reserved */ 9488 0, /* 42 reserved */ 9489 0, /* 43 reserved */ 9490 0, /* 44 reserved */ 9491 0, /* 45 reserved */ 9492 0, /* 46 reserved */ 9493 0, /* 47 reserved */ 9494 0, /* 48 reserved */ 9495 0, /* 49 reserved */ 9496 0, /* 50 reserved */ 9497 0, /* 51 reserved */ 9498 0, /* 52 reserved */ 9499 0, /* 53 reserved */ 9500 0, /* 54 reserved */ 9501 0, /* 55 reserved */ 9502 0, /* 56 cisptr_lsw */ 9503 0, /* 57 cisprt_msw */ 9504 PCI_VENDOR_ID_ASP, /* 58 subsysvid */ 9505 PCI_DEVICE_ID_38C1600_REV1, /* 59 subsysid */ 9506 0, /* 60 reserved */ 9507 0, /* 61 reserved */ 9508 0, /* 62 reserved */ 9509 0 /* 63 reserved */ 9510 }; 9511 9512 static ADVEEP_38C1600_CONFIG ADVEEP_38C1600_Config_Field_IsChar = { 9513 0, /* 00 cfg_lsw */ 9514 0, /* 01 cfg_msw */ 9515 0, /* 02 disc_enable */ 9516 0, /* 03 wdtr_able */ 9517 0, /* 04 sdtr_speed1 */ 9518 0, /* 05 start_motor */ 9519 0, /* 06 tagqng_able */ 9520 0, /* 07 bios_scan */ 9521 0, /* 08 scam_tolerant */ 9522 1, /* 09 adapter_scsi_id */ 9523 1, /* bios_boot_delay */ 9524 1, /* 10 scsi_reset_delay */ 9525 1, /* bios_id_lun */ 9526 1, /* 11 termination_se */ 9527 1, /* termination_lvd */ 9528 0, /* 12 bios_ctrl */ 9529 0, /* 13 sdtr_speed2 */ 9530 0, /* 14 sdtr_speed3 */ 9531 1, /* 15 max_host_qng */ 9532 1, /* max_dvc_qng */ 9533 0, /* 16 dvc_cntl */ 9534 0, /* 17 sdtr_speed4 */ 9535 0, /* 18 serial_number_word1 */ 9536 0, /* 19 serial_number_word2 */ 9537 0, /* 20 serial_number_word3 */ 9538 0, /* 21 check_sum */ 9539 {1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1, 1} 9540 , /* 22-29 oem_name[16] */ 9541 0, /* 30 dvc_err_code */ 9542 0, /* 31 adv_err_code */ 9543 0, /* 32 adv_err_addr */ 9544 0, /* 33 saved_dvc_err_code */ 9545 0, /* 34 saved_adv_err_code */ 9546 0, /* 35 saved_adv_err_addr */ 9547 0, /* 36 reserved */ 9548 0, /* 37 reserved */ 9549 0, /* 38 reserved */ 9550 0, /* 39 reserved */ 9551 0, /* 40 reserved */ 9552 0, /* 41 reserved */ 9553 0, /* 42 reserved */ 9554 0, /* 43 reserved */ 9555 0, /* 44 reserved */ 9556 0, /* 45 reserved */ 9557 0, /* 46 reserved */ 9558 0, /* 47 reserved */ 9559 0, /* 48 reserved */ 9560 0, /* 49 reserved */ 9561 0, /* 50 reserved */ 9562 0, /* 51 reserved */ 9563 0, /* 52 reserved */ 9564 0, /* 53 reserved */ 9565 0, /* 54 reserved */ 9566 0, /* 55 reserved */ 9567 0, /* 56 cisptr_lsw */ 9568 0, /* 57 cisprt_msw */ 9569 0, /* 58 subsysvid */ 9570 0, /* 59 subsysid */ 9571 0, /* 60 reserved */ 9572 0, /* 61 reserved */ 9573 0, /* 62 reserved */ 9574 0 /* 63 reserved */ 9575 }; 9576 9577 /* 9578 * Wait for EEPROM command to complete 9579 */ AdvWaitEEPCmd(AdvPortAddr iop_base)9580 static void AdvWaitEEPCmd(AdvPortAddr iop_base) 9581 { 9582 int eep_delay_ms; 9583 9584 for (eep_delay_ms = 0; eep_delay_ms < ADV_EEP_DELAY_MS; eep_delay_ms++) { 9585 if (AdvReadWordRegister(iop_base, IOPW_EE_CMD) & 9586 ASC_EEP_CMD_DONE) { 9587 break; 9588 } 9589 mdelay(1); 9590 } 9591 if ((AdvReadWordRegister(iop_base, IOPW_EE_CMD) & ASC_EEP_CMD_DONE) == 9592 0) 9593 BUG(); 9594 } 9595 9596 /* 9597 * Read the EEPROM from specified location 9598 */ AdvReadEEPWord(AdvPortAddr iop_base,int eep_word_addr)9599 static ushort AdvReadEEPWord(AdvPortAddr iop_base, int eep_word_addr) 9600 { 9601 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9602 ASC_EEP_CMD_READ | eep_word_addr); 9603 AdvWaitEEPCmd(iop_base); 9604 return AdvReadWordRegister(iop_base, IOPW_EE_DATA); 9605 } 9606 9607 /* 9608 * Write the EEPROM from 'cfg_buf'. 9609 */ AdvSet3550EEPConfig(AdvPortAddr iop_base,ADVEEP_3550_CONFIG * cfg_buf)9610 static void AdvSet3550EEPConfig(AdvPortAddr iop_base, 9611 ADVEEP_3550_CONFIG *cfg_buf) 9612 { 9613 ushort *wbuf; 9614 ushort addr, chksum; 9615 ushort *charfields; 9616 9617 wbuf = (ushort *)cfg_buf; 9618 charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; 9619 chksum = 0; 9620 9621 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); 9622 AdvWaitEEPCmd(iop_base); 9623 9624 /* 9625 * Write EEPROM from word 0 to word 20. 9626 */ 9627 for (addr = ADV_EEP_DVC_CFG_BEGIN; 9628 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { 9629 ushort word; 9630 9631 if (*charfields++) { 9632 word = cpu_to_le16(*wbuf); 9633 } else { 9634 word = *wbuf; 9635 } 9636 chksum += *wbuf; /* Checksum is calculated from word values. */ 9637 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9638 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9639 ASC_EEP_CMD_WRITE | addr); 9640 AdvWaitEEPCmd(iop_base); 9641 mdelay(ADV_EEP_DELAY_MS); 9642 } 9643 9644 /* 9645 * Write EEPROM checksum at word 21. 9646 */ 9647 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); 9648 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); 9649 AdvWaitEEPCmd(iop_base); 9650 wbuf++; 9651 charfields++; 9652 9653 /* 9654 * Write EEPROM OEM name at words 22 to 29. 9655 */ 9656 for (addr = ADV_EEP_DVC_CTL_BEGIN; 9657 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { 9658 ushort word; 9659 9660 if (*charfields++) { 9661 word = cpu_to_le16(*wbuf); 9662 } else { 9663 word = *wbuf; 9664 } 9665 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9666 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9667 ASC_EEP_CMD_WRITE | addr); 9668 AdvWaitEEPCmd(iop_base); 9669 } 9670 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); 9671 AdvWaitEEPCmd(iop_base); 9672 } 9673 9674 /* 9675 * Write the EEPROM from 'cfg_buf'. 9676 */ AdvSet38C0800EEPConfig(AdvPortAddr iop_base,ADVEEP_38C0800_CONFIG * cfg_buf)9677 static void AdvSet38C0800EEPConfig(AdvPortAddr iop_base, 9678 ADVEEP_38C0800_CONFIG *cfg_buf) 9679 { 9680 ushort *wbuf; 9681 ushort *charfields; 9682 ushort addr, chksum; 9683 9684 wbuf = (ushort *)cfg_buf; 9685 charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; 9686 chksum = 0; 9687 9688 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); 9689 AdvWaitEEPCmd(iop_base); 9690 9691 /* 9692 * Write EEPROM from word 0 to word 20. 9693 */ 9694 for (addr = ADV_EEP_DVC_CFG_BEGIN; 9695 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { 9696 ushort word; 9697 9698 if (*charfields++) { 9699 word = cpu_to_le16(*wbuf); 9700 } else { 9701 word = *wbuf; 9702 } 9703 chksum += *wbuf; /* Checksum is calculated from word values. */ 9704 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9705 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9706 ASC_EEP_CMD_WRITE | addr); 9707 AdvWaitEEPCmd(iop_base); 9708 mdelay(ADV_EEP_DELAY_MS); 9709 } 9710 9711 /* 9712 * Write EEPROM checksum at word 21. 9713 */ 9714 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); 9715 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); 9716 AdvWaitEEPCmd(iop_base); 9717 wbuf++; 9718 charfields++; 9719 9720 /* 9721 * Write EEPROM OEM name at words 22 to 29. 9722 */ 9723 for (addr = ADV_EEP_DVC_CTL_BEGIN; 9724 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { 9725 ushort word; 9726 9727 if (*charfields++) { 9728 word = cpu_to_le16(*wbuf); 9729 } else { 9730 word = *wbuf; 9731 } 9732 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9733 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9734 ASC_EEP_CMD_WRITE | addr); 9735 AdvWaitEEPCmd(iop_base); 9736 } 9737 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); 9738 AdvWaitEEPCmd(iop_base); 9739 } 9740 9741 /* 9742 * Write the EEPROM from 'cfg_buf'. 9743 */ AdvSet38C1600EEPConfig(AdvPortAddr iop_base,ADVEEP_38C1600_CONFIG * cfg_buf)9744 static void AdvSet38C1600EEPConfig(AdvPortAddr iop_base, 9745 ADVEEP_38C1600_CONFIG *cfg_buf) 9746 { 9747 ushort *wbuf; 9748 ushort *charfields; 9749 ushort addr, chksum; 9750 9751 wbuf = (ushort *)cfg_buf; 9752 charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; 9753 chksum = 0; 9754 9755 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_ABLE); 9756 AdvWaitEEPCmd(iop_base); 9757 9758 /* 9759 * Write EEPROM from word 0 to word 20. 9760 */ 9761 for (addr = ADV_EEP_DVC_CFG_BEGIN; 9762 addr < ADV_EEP_DVC_CFG_END; addr++, wbuf++) { 9763 ushort word; 9764 9765 if (*charfields++) { 9766 word = cpu_to_le16(*wbuf); 9767 } else { 9768 word = *wbuf; 9769 } 9770 chksum += *wbuf; /* Checksum is calculated from word values. */ 9771 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9772 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9773 ASC_EEP_CMD_WRITE | addr); 9774 AdvWaitEEPCmd(iop_base); 9775 mdelay(ADV_EEP_DELAY_MS); 9776 } 9777 9778 /* 9779 * Write EEPROM checksum at word 21. 9780 */ 9781 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, chksum); 9782 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE | addr); 9783 AdvWaitEEPCmd(iop_base); 9784 wbuf++; 9785 charfields++; 9786 9787 /* 9788 * Write EEPROM OEM name at words 22 to 29. 9789 */ 9790 for (addr = ADV_EEP_DVC_CTL_BEGIN; 9791 addr < ADV_EEP_MAX_WORD_ADDR; addr++, wbuf++) { 9792 ushort word; 9793 9794 if (*charfields++) { 9795 word = cpu_to_le16(*wbuf); 9796 } else { 9797 word = *wbuf; 9798 } 9799 AdvWriteWordRegister(iop_base, IOPW_EE_DATA, word); 9800 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, 9801 ASC_EEP_CMD_WRITE | addr); 9802 AdvWaitEEPCmd(iop_base); 9803 } 9804 AdvWriteWordRegister(iop_base, IOPW_EE_CMD, ASC_EEP_CMD_WRITE_DISABLE); 9805 AdvWaitEEPCmd(iop_base); 9806 } 9807 9808 /* 9809 * Read EEPROM configuration into the specified buffer. 9810 * 9811 * Return a checksum based on the EEPROM configuration read. 9812 */ AdvGet3550EEPConfig(AdvPortAddr iop_base,ADVEEP_3550_CONFIG * cfg_buf)9813 static ushort AdvGet3550EEPConfig(AdvPortAddr iop_base, 9814 ADVEEP_3550_CONFIG *cfg_buf) 9815 { 9816 ushort wval, chksum; 9817 ushort *wbuf; 9818 int eep_addr; 9819 ushort *charfields; 9820 9821 charfields = (ushort *)&ADVEEP_3550_Config_Field_IsChar; 9822 wbuf = (ushort *)cfg_buf; 9823 chksum = 0; 9824 9825 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; 9826 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { 9827 wval = AdvReadEEPWord(iop_base, eep_addr); 9828 chksum += wval; /* Checksum is calculated from word values. */ 9829 if (*charfields++) { 9830 *wbuf = le16_to_cpu(wval); 9831 } else { 9832 *wbuf = wval; 9833 } 9834 } 9835 /* Read checksum word. */ 9836 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9837 wbuf++; 9838 charfields++; 9839 9840 /* Read rest of EEPROM not covered by the checksum. */ 9841 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; 9842 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { 9843 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9844 if (*charfields++) { 9845 *wbuf = le16_to_cpu(*wbuf); 9846 } 9847 } 9848 return chksum; 9849 } 9850 9851 /* 9852 * Read EEPROM configuration into the specified buffer. 9853 * 9854 * Return a checksum based on the EEPROM configuration read. 9855 */ AdvGet38C0800EEPConfig(AdvPortAddr iop_base,ADVEEP_38C0800_CONFIG * cfg_buf)9856 static ushort AdvGet38C0800EEPConfig(AdvPortAddr iop_base, 9857 ADVEEP_38C0800_CONFIG *cfg_buf) 9858 { 9859 ushort wval, chksum; 9860 ushort *wbuf; 9861 int eep_addr; 9862 ushort *charfields; 9863 9864 charfields = (ushort *)&ADVEEP_38C0800_Config_Field_IsChar; 9865 wbuf = (ushort *)cfg_buf; 9866 chksum = 0; 9867 9868 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; 9869 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { 9870 wval = AdvReadEEPWord(iop_base, eep_addr); 9871 chksum += wval; /* Checksum is calculated from word values. */ 9872 if (*charfields++) { 9873 *wbuf = le16_to_cpu(wval); 9874 } else { 9875 *wbuf = wval; 9876 } 9877 } 9878 /* Read checksum word. */ 9879 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9880 wbuf++; 9881 charfields++; 9882 9883 /* Read rest of EEPROM not covered by the checksum. */ 9884 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; 9885 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { 9886 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9887 if (*charfields++) { 9888 *wbuf = le16_to_cpu(*wbuf); 9889 } 9890 } 9891 return chksum; 9892 } 9893 9894 /* 9895 * Read EEPROM configuration into the specified buffer. 9896 * 9897 * Return a checksum based on the EEPROM configuration read. 9898 */ AdvGet38C1600EEPConfig(AdvPortAddr iop_base,ADVEEP_38C1600_CONFIG * cfg_buf)9899 static ushort AdvGet38C1600EEPConfig(AdvPortAddr iop_base, 9900 ADVEEP_38C1600_CONFIG *cfg_buf) 9901 { 9902 ushort wval, chksum; 9903 ushort *wbuf; 9904 int eep_addr; 9905 ushort *charfields; 9906 9907 charfields = (ushort *)&ADVEEP_38C1600_Config_Field_IsChar; 9908 wbuf = (ushort *)cfg_buf; 9909 chksum = 0; 9910 9911 for (eep_addr = ADV_EEP_DVC_CFG_BEGIN; 9912 eep_addr < ADV_EEP_DVC_CFG_END; eep_addr++, wbuf++) { 9913 wval = AdvReadEEPWord(iop_base, eep_addr); 9914 chksum += wval; /* Checksum is calculated from word values. */ 9915 if (*charfields++) { 9916 *wbuf = le16_to_cpu(wval); 9917 } else { 9918 *wbuf = wval; 9919 } 9920 } 9921 /* Read checksum word. */ 9922 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9923 wbuf++; 9924 charfields++; 9925 9926 /* Read rest of EEPROM not covered by the checksum. */ 9927 for (eep_addr = ADV_EEP_DVC_CTL_BEGIN; 9928 eep_addr < ADV_EEP_MAX_WORD_ADDR; eep_addr++, wbuf++) { 9929 *wbuf = AdvReadEEPWord(iop_base, eep_addr); 9930 if (*charfields++) { 9931 *wbuf = le16_to_cpu(*wbuf); 9932 } 9933 } 9934 return chksum; 9935 } 9936 9937 /* 9938 * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and 9939 * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while 9940 * all of this is done. 9941 * 9942 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. 9943 * 9944 * For a non-fatal error return a warning code. If there are no warnings 9945 * then 0 is returned. 9946 * 9947 * Note: Chip is stopped on entry. 9948 */ AdvInitFrom3550EEP(ADV_DVC_VAR * asc_dvc)9949 static int AdvInitFrom3550EEP(ADV_DVC_VAR *asc_dvc) 9950 { 9951 AdvPortAddr iop_base; 9952 ushort warn_code; 9953 ADVEEP_3550_CONFIG eep_config; 9954 9955 iop_base = asc_dvc->iop_base; 9956 9957 warn_code = 0; 9958 9959 /* 9960 * Read the board's EEPROM configuration. 9961 * 9962 * Set default values if a bad checksum is found. 9963 */ 9964 if (AdvGet3550EEPConfig(iop_base, &eep_config) != eep_config.check_sum) { 9965 warn_code |= ASC_WARN_EEPROM_CHKSUM; 9966 9967 /* 9968 * Set EEPROM default values. 9969 */ 9970 memcpy(&eep_config, &Default_3550_EEPROM_Config, 9971 sizeof(ADVEEP_3550_CONFIG)); 9972 9973 /* 9974 * Assume the 6 byte board serial number that was read from 9975 * EEPROM is correct even if the EEPROM checksum failed. 9976 */ 9977 eep_config.serial_number_word3 = 9978 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1); 9979 9980 eep_config.serial_number_word2 = 9981 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2); 9982 9983 eep_config.serial_number_word1 = 9984 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3); 9985 9986 AdvSet3550EEPConfig(iop_base, &eep_config); 9987 } 9988 /* 9989 * Set ASC_DVC_VAR and ASC_DVC_CFG variables from the 9990 * EEPROM configuration that was read. 9991 * 9992 * This is the mapping of EEPROM fields to Adv Library fields. 9993 */ 9994 asc_dvc->wdtr_able = eep_config.wdtr_able; 9995 asc_dvc->sdtr_able = eep_config.sdtr_able; 9996 asc_dvc->ultra_able = eep_config.ultra_able; 9997 asc_dvc->tagqng_able = eep_config.tagqng_able; 9998 asc_dvc->cfg->disc_enable = eep_config.disc_enable; 9999 asc_dvc->max_host_qng = eep_config.max_host_qng; 10000 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10001 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ADV_MAX_TID); 10002 asc_dvc->start_motor = eep_config.start_motor; 10003 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay; 10004 asc_dvc->bios_ctrl = eep_config.bios_ctrl; 10005 asc_dvc->no_scam = eep_config.scam_tolerant; 10006 asc_dvc->cfg->serial1 = eep_config.serial_number_word1; 10007 asc_dvc->cfg->serial2 = eep_config.serial_number_word2; 10008 asc_dvc->cfg->serial3 = eep_config.serial_number_word3; 10009 10010 /* 10011 * Set the host maximum queuing (max. 253, min. 16) and the per device 10012 * maximum queuing (max. 63, min. 4). 10013 */ 10014 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) { 10015 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10016 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) { 10017 /* If the value is zero, assume it is uninitialized. */ 10018 if (eep_config.max_host_qng == 0) { 10019 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10020 } else { 10021 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG; 10022 } 10023 } 10024 10025 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) { 10026 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10027 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) { 10028 /* If the value is zero, assume it is uninitialized. */ 10029 if (eep_config.max_dvc_qng == 0) { 10030 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10031 } else { 10032 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG; 10033 } 10034 } 10035 10036 /* 10037 * If 'max_dvc_qng' is greater than 'max_host_qng', then 10038 * set 'max_dvc_qng' to 'max_host_qng'. 10039 */ 10040 if (eep_config.max_dvc_qng > eep_config.max_host_qng) { 10041 eep_config.max_dvc_qng = eep_config.max_host_qng; 10042 } 10043 10044 /* 10045 * Set ADV_DVC_VAR 'max_host_qng' and ADV_DVC_VAR 'max_dvc_qng' 10046 * values based on possibly adjusted EEPROM values. 10047 */ 10048 asc_dvc->max_host_qng = eep_config.max_host_qng; 10049 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10050 10051 /* 10052 * If the EEPROM 'termination' field is set to automatic (0), then set 10053 * the ADV_DVC_CFG 'termination' field to automatic also. 10054 * 10055 * If the termination is specified with a non-zero 'termination' 10056 * value check that a legal value is set and set the ADV_DVC_CFG 10057 * 'termination' field appropriately. 10058 */ 10059 if (eep_config.termination == 0) { 10060 asc_dvc->cfg->termination = 0; /* auto termination */ 10061 } else { 10062 /* Enable manual control with low off / high off. */ 10063 if (eep_config.termination == 1) { 10064 asc_dvc->cfg->termination = TERM_CTL_SEL; 10065 10066 /* Enable manual control with low off / high on. */ 10067 } else if (eep_config.termination == 2) { 10068 asc_dvc->cfg->termination = TERM_CTL_SEL | TERM_CTL_H; 10069 10070 /* Enable manual control with low on / high on. */ 10071 } else if (eep_config.termination == 3) { 10072 asc_dvc->cfg->termination = 10073 TERM_CTL_SEL | TERM_CTL_H | TERM_CTL_L; 10074 } else { 10075 /* 10076 * The EEPROM 'termination' field contains a bad value. Use 10077 * automatic termination instead. 10078 */ 10079 asc_dvc->cfg->termination = 0; 10080 warn_code |= ASC_WARN_EEPROM_TERMINATION; 10081 } 10082 } 10083 10084 return warn_code; 10085 } 10086 10087 /* 10088 * Read the board's EEPROM configuration. Set fields in ADV_DVC_VAR and 10089 * ADV_DVC_CFG based on the EEPROM settings. The chip is stopped while 10090 * all of this is done. 10091 * 10092 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. 10093 * 10094 * For a non-fatal error return a warning code. If there are no warnings 10095 * then 0 is returned. 10096 * 10097 * Note: Chip is stopped on entry. 10098 */ AdvInitFrom38C0800EEP(ADV_DVC_VAR * asc_dvc)10099 static int AdvInitFrom38C0800EEP(ADV_DVC_VAR *asc_dvc) 10100 { 10101 AdvPortAddr iop_base; 10102 ushort warn_code; 10103 ADVEEP_38C0800_CONFIG eep_config; 10104 uchar tid, termination; 10105 ushort sdtr_speed = 0; 10106 10107 iop_base = asc_dvc->iop_base; 10108 10109 warn_code = 0; 10110 10111 /* 10112 * Read the board's EEPROM configuration. 10113 * 10114 * Set default values if a bad checksum is found. 10115 */ 10116 if (AdvGet38C0800EEPConfig(iop_base, &eep_config) != 10117 eep_config.check_sum) { 10118 warn_code |= ASC_WARN_EEPROM_CHKSUM; 10119 10120 /* 10121 * Set EEPROM default values. 10122 */ 10123 memcpy(&eep_config, &Default_38C0800_EEPROM_Config, 10124 sizeof(ADVEEP_38C0800_CONFIG)); 10125 10126 /* 10127 * Assume the 6 byte board serial number that was read from 10128 * EEPROM is correct even if the EEPROM checksum failed. 10129 */ 10130 eep_config.serial_number_word3 = 10131 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1); 10132 10133 eep_config.serial_number_word2 = 10134 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2); 10135 10136 eep_config.serial_number_word1 = 10137 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3); 10138 10139 AdvSet38C0800EEPConfig(iop_base, &eep_config); 10140 } 10141 /* 10142 * Set ADV_DVC_VAR and ADV_DVC_CFG variables from the 10143 * EEPROM configuration that was read. 10144 * 10145 * This is the mapping of EEPROM fields to Adv Library fields. 10146 */ 10147 asc_dvc->wdtr_able = eep_config.wdtr_able; 10148 asc_dvc->sdtr_speed1 = eep_config.sdtr_speed1; 10149 asc_dvc->sdtr_speed2 = eep_config.sdtr_speed2; 10150 asc_dvc->sdtr_speed3 = eep_config.sdtr_speed3; 10151 asc_dvc->sdtr_speed4 = eep_config.sdtr_speed4; 10152 asc_dvc->tagqng_able = eep_config.tagqng_able; 10153 asc_dvc->cfg->disc_enable = eep_config.disc_enable; 10154 asc_dvc->max_host_qng = eep_config.max_host_qng; 10155 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10156 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ADV_MAX_TID); 10157 asc_dvc->start_motor = eep_config.start_motor; 10158 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay; 10159 asc_dvc->bios_ctrl = eep_config.bios_ctrl; 10160 asc_dvc->no_scam = eep_config.scam_tolerant; 10161 asc_dvc->cfg->serial1 = eep_config.serial_number_word1; 10162 asc_dvc->cfg->serial2 = eep_config.serial_number_word2; 10163 asc_dvc->cfg->serial3 = eep_config.serial_number_word3; 10164 10165 /* 10166 * For every Target ID if any of its 'sdtr_speed[1234]' bits 10167 * are set, then set an 'sdtr_able' bit for it. 10168 */ 10169 asc_dvc->sdtr_able = 0; 10170 for (tid = 0; tid <= ADV_MAX_TID; tid++) { 10171 if (tid == 0) { 10172 sdtr_speed = asc_dvc->sdtr_speed1; 10173 } else if (tid == 4) { 10174 sdtr_speed = asc_dvc->sdtr_speed2; 10175 } else if (tid == 8) { 10176 sdtr_speed = asc_dvc->sdtr_speed3; 10177 } else if (tid == 12) { 10178 sdtr_speed = asc_dvc->sdtr_speed4; 10179 } 10180 if (sdtr_speed & ADV_MAX_TID) { 10181 asc_dvc->sdtr_able |= (1 << tid); 10182 } 10183 sdtr_speed >>= 4; 10184 } 10185 10186 /* 10187 * Set the host maximum queuing (max. 253, min. 16) and the per device 10188 * maximum queuing (max. 63, min. 4). 10189 */ 10190 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) { 10191 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10192 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) { 10193 /* If the value is zero, assume it is uninitialized. */ 10194 if (eep_config.max_host_qng == 0) { 10195 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10196 } else { 10197 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG; 10198 } 10199 } 10200 10201 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) { 10202 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10203 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) { 10204 /* If the value is zero, assume it is uninitialized. */ 10205 if (eep_config.max_dvc_qng == 0) { 10206 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10207 } else { 10208 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG; 10209 } 10210 } 10211 10212 /* 10213 * If 'max_dvc_qng' is greater than 'max_host_qng', then 10214 * set 'max_dvc_qng' to 'max_host_qng'. 10215 */ 10216 if (eep_config.max_dvc_qng > eep_config.max_host_qng) { 10217 eep_config.max_dvc_qng = eep_config.max_host_qng; 10218 } 10219 10220 /* 10221 * Set ADV_DVC_VAR 'max_host_qng' and ADV_DVC_VAR 'max_dvc_qng' 10222 * values based on possibly adjusted EEPROM values. 10223 */ 10224 asc_dvc->max_host_qng = eep_config.max_host_qng; 10225 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10226 10227 /* 10228 * If the EEPROM 'termination' field is set to automatic (0), then set 10229 * the ADV_DVC_CFG 'termination' field to automatic also. 10230 * 10231 * If the termination is specified with a non-zero 'termination' 10232 * value check that a legal value is set and set the ADV_DVC_CFG 10233 * 'termination' field appropriately. 10234 */ 10235 if (eep_config.termination_se == 0) { 10236 termination = 0; /* auto termination for SE */ 10237 } else { 10238 /* Enable manual control with low off / high off. */ 10239 if (eep_config.termination_se == 1) { 10240 termination = 0; 10241 10242 /* Enable manual control with low off / high on. */ 10243 } else if (eep_config.termination_se == 2) { 10244 termination = TERM_SE_HI; 10245 10246 /* Enable manual control with low on / high on. */ 10247 } else if (eep_config.termination_se == 3) { 10248 termination = TERM_SE; 10249 } else { 10250 /* 10251 * The EEPROM 'termination_se' field contains a bad value. 10252 * Use automatic termination instead. 10253 */ 10254 termination = 0; 10255 warn_code |= ASC_WARN_EEPROM_TERMINATION; 10256 } 10257 } 10258 10259 if (eep_config.termination_lvd == 0) { 10260 asc_dvc->cfg->termination = termination; /* auto termination for LVD */ 10261 } else { 10262 /* Enable manual control with low off / high off. */ 10263 if (eep_config.termination_lvd == 1) { 10264 asc_dvc->cfg->termination = termination; 10265 10266 /* Enable manual control with low off / high on. */ 10267 } else if (eep_config.termination_lvd == 2) { 10268 asc_dvc->cfg->termination = termination | TERM_LVD_HI; 10269 10270 /* Enable manual control with low on / high on. */ 10271 } else if (eep_config.termination_lvd == 3) { 10272 asc_dvc->cfg->termination = termination | TERM_LVD; 10273 } else { 10274 /* 10275 * The EEPROM 'termination_lvd' field contains a bad value. 10276 * Use automatic termination instead. 10277 */ 10278 asc_dvc->cfg->termination = termination; 10279 warn_code |= ASC_WARN_EEPROM_TERMINATION; 10280 } 10281 } 10282 10283 return warn_code; 10284 } 10285 10286 /* 10287 * Read the board's EEPROM configuration. Set fields in ASC_DVC_VAR and 10288 * ASC_DVC_CFG based on the EEPROM settings. The chip is stopped while 10289 * all of this is done. 10290 * 10291 * On failure set the ASC_DVC_VAR field 'err_code' and return ADV_ERROR. 10292 * 10293 * For a non-fatal error return a warning code. If there are no warnings 10294 * then 0 is returned. 10295 * 10296 * Note: Chip is stopped on entry. 10297 */ AdvInitFrom38C1600EEP(ADV_DVC_VAR * asc_dvc)10298 static int AdvInitFrom38C1600EEP(ADV_DVC_VAR *asc_dvc) 10299 { 10300 AdvPortAddr iop_base; 10301 ushort warn_code; 10302 ADVEEP_38C1600_CONFIG eep_config; 10303 uchar tid, termination; 10304 ushort sdtr_speed = 0; 10305 10306 iop_base = asc_dvc->iop_base; 10307 10308 warn_code = 0; 10309 10310 /* 10311 * Read the board's EEPROM configuration. 10312 * 10313 * Set default values if a bad checksum is found. 10314 */ 10315 if (AdvGet38C1600EEPConfig(iop_base, &eep_config) != 10316 eep_config.check_sum) { 10317 struct pci_dev *pdev = adv_dvc_to_pdev(asc_dvc); 10318 warn_code |= ASC_WARN_EEPROM_CHKSUM; 10319 10320 /* 10321 * Set EEPROM default values. 10322 */ 10323 memcpy(&eep_config, &Default_38C1600_EEPROM_Config, 10324 sizeof(ADVEEP_38C1600_CONFIG)); 10325 10326 if (PCI_FUNC(pdev->devfn) != 0) { 10327 u8 ints; 10328 /* 10329 * Disable Bit 14 (BIOS_ENABLE) to fix SPARC Ultra 60 10330 * and old Mac system booting problem. The Expansion 10331 * ROM must be disabled in Function 1 for these systems 10332 */ 10333 eep_config.cfg_lsw &= ~ADV_EEPROM_BIOS_ENABLE; 10334 /* 10335 * Clear the INTAB (bit 11) if the GPIO 0 input 10336 * indicates the Function 1 interrupt line is wired 10337 * to INTB. 10338 * 10339 * Set/Clear Bit 11 (INTAB) from the GPIO bit 0 input: 10340 * 1 - Function 1 interrupt line wired to INT A. 10341 * 0 - Function 1 interrupt line wired to INT B. 10342 * 10343 * Note: Function 0 is always wired to INTA. 10344 * Put all 5 GPIO bits in input mode and then read 10345 * their input values. 10346 */ 10347 AdvWriteByteRegister(iop_base, IOPB_GPIO_CNTL, 0); 10348 ints = AdvReadByteRegister(iop_base, IOPB_GPIO_DATA); 10349 if ((ints & 0x01) == 0) 10350 eep_config.cfg_lsw &= ~ADV_EEPROM_INTAB; 10351 } 10352 10353 /* 10354 * Assume the 6 byte board serial number that was read from 10355 * EEPROM is correct even if the EEPROM checksum failed. 10356 */ 10357 eep_config.serial_number_word3 = 10358 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 1); 10359 eep_config.serial_number_word2 = 10360 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 2); 10361 eep_config.serial_number_word1 = 10362 AdvReadEEPWord(iop_base, ADV_EEP_DVC_CFG_END - 3); 10363 10364 AdvSet38C1600EEPConfig(iop_base, &eep_config); 10365 } 10366 10367 /* 10368 * Set ASC_DVC_VAR and ASC_DVC_CFG variables from the 10369 * EEPROM configuration that was read. 10370 * 10371 * This is the mapping of EEPROM fields to Adv Library fields. 10372 */ 10373 asc_dvc->wdtr_able = eep_config.wdtr_able; 10374 asc_dvc->sdtr_speed1 = eep_config.sdtr_speed1; 10375 asc_dvc->sdtr_speed2 = eep_config.sdtr_speed2; 10376 asc_dvc->sdtr_speed3 = eep_config.sdtr_speed3; 10377 asc_dvc->sdtr_speed4 = eep_config.sdtr_speed4; 10378 asc_dvc->ppr_able = 0; 10379 asc_dvc->tagqng_able = eep_config.tagqng_able; 10380 asc_dvc->cfg->disc_enable = eep_config.disc_enable; 10381 asc_dvc->max_host_qng = eep_config.max_host_qng; 10382 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10383 asc_dvc->chip_scsi_id = (eep_config.adapter_scsi_id & ASC_MAX_TID); 10384 asc_dvc->start_motor = eep_config.start_motor; 10385 asc_dvc->scsi_reset_wait = eep_config.scsi_reset_delay; 10386 asc_dvc->bios_ctrl = eep_config.bios_ctrl; 10387 asc_dvc->no_scam = eep_config.scam_tolerant; 10388 10389 /* 10390 * For every Target ID if any of its 'sdtr_speed[1234]' bits 10391 * are set, then set an 'sdtr_able' bit for it. 10392 */ 10393 asc_dvc->sdtr_able = 0; 10394 for (tid = 0; tid <= ASC_MAX_TID; tid++) { 10395 if (tid == 0) { 10396 sdtr_speed = asc_dvc->sdtr_speed1; 10397 } else if (tid == 4) { 10398 sdtr_speed = asc_dvc->sdtr_speed2; 10399 } else if (tid == 8) { 10400 sdtr_speed = asc_dvc->sdtr_speed3; 10401 } else if (tid == 12) { 10402 sdtr_speed = asc_dvc->sdtr_speed4; 10403 } 10404 if (sdtr_speed & ASC_MAX_TID) { 10405 asc_dvc->sdtr_able |= (1 << tid); 10406 } 10407 sdtr_speed >>= 4; 10408 } 10409 10410 /* 10411 * Set the host maximum queuing (max. 253, min. 16) and the per device 10412 * maximum queuing (max. 63, min. 4). 10413 */ 10414 if (eep_config.max_host_qng > ASC_DEF_MAX_HOST_QNG) { 10415 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10416 } else if (eep_config.max_host_qng < ASC_DEF_MIN_HOST_QNG) { 10417 /* If the value is zero, assume it is uninitialized. */ 10418 if (eep_config.max_host_qng == 0) { 10419 eep_config.max_host_qng = ASC_DEF_MAX_HOST_QNG; 10420 } else { 10421 eep_config.max_host_qng = ASC_DEF_MIN_HOST_QNG; 10422 } 10423 } 10424 10425 if (eep_config.max_dvc_qng > ASC_DEF_MAX_DVC_QNG) { 10426 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10427 } else if (eep_config.max_dvc_qng < ASC_DEF_MIN_DVC_QNG) { 10428 /* If the value is zero, assume it is uninitialized. */ 10429 if (eep_config.max_dvc_qng == 0) { 10430 eep_config.max_dvc_qng = ASC_DEF_MAX_DVC_QNG; 10431 } else { 10432 eep_config.max_dvc_qng = ASC_DEF_MIN_DVC_QNG; 10433 } 10434 } 10435 10436 /* 10437 * If 'max_dvc_qng' is greater than 'max_host_qng', then 10438 * set 'max_dvc_qng' to 'max_host_qng'. 10439 */ 10440 if (eep_config.max_dvc_qng > eep_config.max_host_qng) { 10441 eep_config.max_dvc_qng = eep_config.max_host_qng; 10442 } 10443 10444 /* 10445 * Set ASC_DVC_VAR 'max_host_qng' and ASC_DVC_VAR 'max_dvc_qng' 10446 * values based on possibly adjusted EEPROM values. 10447 */ 10448 asc_dvc->max_host_qng = eep_config.max_host_qng; 10449 asc_dvc->max_dvc_qng = eep_config.max_dvc_qng; 10450 10451 /* 10452 * If the EEPROM 'termination' field is set to automatic (0), then set 10453 * the ASC_DVC_CFG 'termination' field to automatic also. 10454 * 10455 * If the termination is specified with a non-zero 'termination' 10456 * value check that a legal value is set and set the ASC_DVC_CFG 10457 * 'termination' field appropriately. 10458 */ 10459 if (eep_config.termination_se == 0) { 10460 termination = 0; /* auto termination for SE */ 10461 } else { 10462 /* Enable manual control with low off / high off. */ 10463 if (eep_config.termination_se == 1) { 10464 termination = 0; 10465 10466 /* Enable manual control with low off / high on. */ 10467 } else if (eep_config.termination_se == 2) { 10468 termination = TERM_SE_HI; 10469 10470 /* Enable manual control with low on / high on. */ 10471 } else if (eep_config.termination_se == 3) { 10472 termination = TERM_SE; 10473 } else { 10474 /* 10475 * The EEPROM 'termination_se' field contains a bad value. 10476 * Use automatic termination instead. 10477 */ 10478 termination = 0; 10479 warn_code |= ASC_WARN_EEPROM_TERMINATION; 10480 } 10481 } 10482 10483 if (eep_config.termination_lvd == 0) { 10484 asc_dvc->cfg->termination = termination; /* auto termination for LVD */ 10485 } else { 10486 /* Enable manual control with low off / high off. */ 10487 if (eep_config.termination_lvd == 1) { 10488 asc_dvc->cfg->termination = termination; 10489 10490 /* Enable manual control with low off / high on. */ 10491 } else if (eep_config.termination_lvd == 2) { 10492 asc_dvc->cfg->termination = termination | TERM_LVD_HI; 10493 10494 /* Enable manual control with low on / high on. */ 10495 } else if (eep_config.termination_lvd == 3) { 10496 asc_dvc->cfg->termination = termination | TERM_LVD; 10497 } else { 10498 /* 10499 * The EEPROM 'termination_lvd' field contains a bad value. 10500 * Use automatic termination instead. 10501 */ 10502 asc_dvc->cfg->termination = termination; 10503 warn_code |= ASC_WARN_EEPROM_TERMINATION; 10504 } 10505 } 10506 10507 return warn_code; 10508 } 10509 10510 /* 10511 * Initialize the ADV_DVC_VAR structure. 10512 * 10513 * On failure set the ADV_DVC_VAR field 'err_code' and return ADV_ERROR. 10514 * 10515 * For a non-fatal error return a warning code. If there are no warnings 10516 * then 0 is returned. 10517 */ AdvInitGetConfig(struct pci_dev * pdev,struct Scsi_Host * shost)10518 static int AdvInitGetConfig(struct pci_dev *pdev, struct Scsi_Host *shost) 10519 { 10520 struct asc_board *board = shost_priv(shost); 10521 ADV_DVC_VAR *asc_dvc = &board->dvc_var.adv_dvc_var; 10522 unsigned short warn_code = 0; 10523 AdvPortAddr iop_base = asc_dvc->iop_base; 10524 u16 cmd; 10525 int status; 10526 10527 asc_dvc->err_code = 0; 10528 10529 /* 10530 * Save the state of the PCI Configuration Command Register 10531 * "Parity Error Response Control" Bit. If the bit is clear (0), 10532 * in AdvInitAsc3550/38C0800Driver() tell the microcode to ignore 10533 * DMA parity errors. 10534 */ 10535 asc_dvc->cfg->control_flag = 0; 10536 pci_read_config_word(pdev, PCI_COMMAND, &cmd); 10537 if ((cmd & PCI_COMMAND_PARITY) == 0) 10538 asc_dvc->cfg->control_flag |= CONTROL_FLAG_IGNORE_PERR; 10539 10540 asc_dvc->cfg->chip_version = 10541 AdvGetChipVersion(iop_base, asc_dvc->bus_type); 10542 10543 ASC_DBG(1, "iopb_chip_id_1: 0x%x 0x%x\n", 10544 (ushort)AdvReadByteRegister(iop_base, IOPB_CHIP_ID_1), 10545 (ushort)ADV_CHIP_ID_BYTE); 10546 10547 ASC_DBG(1, "iopw_chip_id_0: 0x%x 0x%x\n", 10548 (ushort)AdvReadWordRegister(iop_base, IOPW_CHIP_ID_0), 10549 (ushort)ADV_CHIP_ID_WORD); 10550 10551 /* 10552 * Reset the chip to start and allow register writes. 10553 */ 10554 if (AdvFindSignature(iop_base) == 0) { 10555 asc_dvc->err_code = ASC_IERR_BAD_SIGNATURE; 10556 return ADV_ERROR; 10557 } else { 10558 /* 10559 * The caller must set 'chip_type' to a valid setting. 10560 */ 10561 if (asc_dvc->chip_type != ADV_CHIP_ASC3550 && 10562 asc_dvc->chip_type != ADV_CHIP_ASC38C0800 && 10563 asc_dvc->chip_type != ADV_CHIP_ASC38C1600) { 10564 asc_dvc->err_code |= ASC_IERR_BAD_CHIPTYPE; 10565 return ADV_ERROR; 10566 } 10567 10568 /* 10569 * Reset Chip. 10570 */ 10571 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, 10572 ADV_CTRL_REG_CMD_RESET); 10573 mdelay(100); 10574 AdvWriteWordRegister(iop_base, IOPW_CTRL_REG, 10575 ADV_CTRL_REG_CMD_WR_IO_REG); 10576 10577 if (asc_dvc->chip_type == ADV_CHIP_ASC38C1600) { 10578 status = AdvInitFrom38C1600EEP(asc_dvc); 10579 } else if (asc_dvc->chip_type == ADV_CHIP_ASC38C0800) { 10580 status = AdvInitFrom38C0800EEP(asc_dvc); 10581 } else { 10582 status = AdvInitFrom3550EEP(asc_dvc); 10583 } 10584 warn_code |= status; 10585 } 10586 10587 if (warn_code != 0) 10588 shost_printk(KERN_WARNING, shost, "warning: 0x%x\n", warn_code); 10589 10590 if (asc_dvc->err_code) 10591 shost_printk(KERN_ERR, shost, "error code 0x%x\n", 10592 asc_dvc->err_code); 10593 10594 return asc_dvc->err_code; 10595 } 10596 #endif 10597 10598 static struct scsi_host_template advansys_template = { 10599 .proc_name = DRV_NAME, 10600 #ifdef CONFIG_PROC_FS 10601 .show_info = advansys_show_info, 10602 #endif 10603 .name = DRV_NAME, 10604 .info = advansys_info, 10605 .queuecommand = advansys_queuecommand, 10606 .eh_host_reset_handler = advansys_reset, 10607 .bios_param = advansys_biosparam, 10608 .slave_configure = advansys_slave_configure, 10609 }; 10610 advansys_wide_init_chip(struct Scsi_Host * shost)10611 static int advansys_wide_init_chip(struct Scsi_Host *shost) 10612 { 10613 struct asc_board *board = shost_priv(shost); 10614 struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var; 10615 size_t sgblk_pool_size; 10616 int warn_code, err_code; 10617 10618 /* 10619 * Allocate buffer carrier structures. The total size 10620 * is about 8 KB, so allocate all at once. 10621 */ 10622 adv_dvc->carrier = dma_alloc_coherent(board->dev, 10623 ADV_CARRIER_BUFSIZE, &adv_dvc->carrier_addr, GFP_KERNEL); 10624 ASC_DBG(1, "carrier 0x%p\n", adv_dvc->carrier); 10625 10626 if (!adv_dvc->carrier) 10627 goto kmalloc_failed; 10628 10629 /* 10630 * Allocate up to 'max_host_qng' request structures for the Wide 10631 * board. The total size is about 16 KB, so allocate all at once. 10632 * If the allocation fails decrement and try again. 10633 */ 10634 board->adv_reqp_size = adv_dvc->max_host_qng * sizeof(adv_req_t); 10635 if (board->adv_reqp_size & 0x1f) { 10636 ASC_DBG(1, "unaligned reqp %lu bytes\n", sizeof(adv_req_t)); 10637 board->adv_reqp_size = ADV_32BALIGN(board->adv_reqp_size); 10638 } 10639 board->adv_reqp = dma_alloc_coherent(board->dev, board->adv_reqp_size, 10640 &board->adv_reqp_addr, GFP_KERNEL); 10641 10642 if (!board->adv_reqp) 10643 goto kmalloc_failed; 10644 10645 ASC_DBG(1, "reqp 0x%p, req_cnt %d, bytes %lu\n", board->adv_reqp, 10646 adv_dvc->max_host_qng, board->adv_reqp_size); 10647 10648 /* 10649 * Allocate up to ADV_TOT_SG_BLOCK request structures for 10650 * the Wide board. Each structure is about 136 bytes. 10651 */ 10652 sgblk_pool_size = sizeof(adv_sgblk_t) * ADV_TOT_SG_BLOCK; 10653 board->adv_sgblk_pool = dma_pool_create("adv_sgblk", board->dev, 10654 sgblk_pool_size, 32, 0); 10655 10656 ASC_DBG(1, "sg_cnt %d * %lu = %lu bytes\n", ADV_TOT_SG_BLOCK, 10657 sizeof(adv_sgblk_t), sgblk_pool_size); 10658 10659 if (!board->adv_sgblk_pool) 10660 goto kmalloc_failed; 10661 10662 if (adv_dvc->chip_type == ADV_CHIP_ASC3550) { 10663 ASC_DBG(2, "AdvInitAsc3550Driver()\n"); 10664 warn_code = AdvInitAsc3550Driver(adv_dvc); 10665 } else if (adv_dvc->chip_type == ADV_CHIP_ASC38C0800) { 10666 ASC_DBG(2, "AdvInitAsc38C0800Driver()\n"); 10667 warn_code = AdvInitAsc38C0800Driver(adv_dvc); 10668 } else { 10669 ASC_DBG(2, "AdvInitAsc38C1600Driver()\n"); 10670 warn_code = AdvInitAsc38C1600Driver(adv_dvc); 10671 } 10672 err_code = adv_dvc->err_code; 10673 10674 if (warn_code || err_code) { 10675 shost_printk(KERN_WARNING, shost, "error: warn 0x%x, error " 10676 "0x%x\n", warn_code, err_code); 10677 } 10678 10679 goto exit; 10680 10681 kmalloc_failed: 10682 shost_printk(KERN_ERR, shost, "error: kmalloc() failed\n"); 10683 err_code = ADV_ERROR; 10684 exit: 10685 return err_code; 10686 } 10687 advansys_wide_free_mem(struct asc_board * board)10688 static void advansys_wide_free_mem(struct asc_board *board) 10689 { 10690 struct adv_dvc_var *adv_dvc = &board->dvc_var.adv_dvc_var; 10691 10692 if (adv_dvc->carrier) { 10693 dma_free_coherent(board->dev, ADV_CARRIER_BUFSIZE, 10694 adv_dvc->carrier, adv_dvc->carrier_addr); 10695 adv_dvc->carrier = NULL; 10696 } 10697 if (board->adv_reqp) { 10698 dma_free_coherent(board->dev, board->adv_reqp_size, 10699 board->adv_reqp, board->adv_reqp_addr); 10700 board->adv_reqp = NULL; 10701 } 10702 if (board->adv_sgblk_pool) { 10703 dma_pool_destroy(board->adv_sgblk_pool); 10704 board->adv_sgblk_pool = NULL; 10705 } 10706 } 10707 advansys_board_found(struct Scsi_Host * shost,unsigned int iop,int bus_type)10708 static int advansys_board_found(struct Scsi_Host *shost, unsigned int iop, 10709 int bus_type) 10710 { 10711 struct pci_dev *pdev; 10712 struct asc_board *boardp = shost_priv(shost); 10713 ASC_DVC_VAR *asc_dvc_varp = NULL; 10714 ADV_DVC_VAR *adv_dvc_varp = NULL; 10715 int share_irq, warn_code, ret; 10716 10717 pdev = (bus_type == ASC_IS_PCI) ? to_pci_dev(boardp->dev) : NULL; 10718 10719 if (ASC_NARROW_BOARD(boardp)) { 10720 ASC_DBG(1, "narrow board\n"); 10721 asc_dvc_varp = &boardp->dvc_var.asc_dvc_var; 10722 asc_dvc_varp->bus_type = bus_type; 10723 asc_dvc_varp->drv_ptr = boardp; 10724 asc_dvc_varp->cfg = &boardp->dvc_cfg.asc_dvc_cfg; 10725 asc_dvc_varp->iop_base = iop; 10726 } else { 10727 #ifdef CONFIG_PCI 10728 adv_dvc_varp = &boardp->dvc_var.adv_dvc_var; 10729 adv_dvc_varp->drv_ptr = boardp; 10730 adv_dvc_varp->cfg = &boardp->dvc_cfg.adv_dvc_cfg; 10731 if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW) { 10732 ASC_DBG(1, "wide board ASC-3550\n"); 10733 adv_dvc_varp->chip_type = ADV_CHIP_ASC3550; 10734 } else if (pdev->device == PCI_DEVICE_ID_38C0800_REV1) { 10735 ASC_DBG(1, "wide board ASC-38C0800\n"); 10736 adv_dvc_varp->chip_type = ADV_CHIP_ASC38C0800; 10737 } else { 10738 ASC_DBG(1, "wide board ASC-38C1600\n"); 10739 adv_dvc_varp->chip_type = ADV_CHIP_ASC38C1600; 10740 } 10741 10742 boardp->asc_n_io_port = pci_resource_len(pdev, 1); 10743 boardp->ioremap_addr = pci_ioremap_bar(pdev, 1); 10744 if (!boardp->ioremap_addr) { 10745 shost_printk(KERN_ERR, shost, "ioremap(%lx, %d) " 10746 "returned NULL\n", 10747 (long)pci_resource_start(pdev, 1), 10748 boardp->asc_n_io_port); 10749 ret = -ENODEV; 10750 goto err_shost; 10751 } 10752 adv_dvc_varp->iop_base = (AdvPortAddr)boardp->ioremap_addr; 10753 ASC_DBG(1, "iop_base: 0x%p\n", adv_dvc_varp->iop_base); 10754 10755 /* 10756 * Even though it isn't used to access wide boards, other 10757 * than for the debug line below, save I/O Port address so 10758 * that it can be reported. 10759 */ 10760 boardp->ioport = iop; 10761 10762 ASC_DBG(1, "iopb_chip_id_1 0x%x, iopw_chip_id_0 0x%x\n", 10763 (ushort)inp(iop + 1), (ushort)inpw(iop)); 10764 #endif /* CONFIG_PCI */ 10765 } 10766 10767 if (ASC_NARROW_BOARD(boardp)) { 10768 /* 10769 * Set the board bus type and PCI IRQ before 10770 * calling AscInitGetConfig(). 10771 */ 10772 switch (asc_dvc_varp->bus_type) { 10773 #ifdef CONFIG_ISA 10774 case ASC_IS_VL: 10775 share_irq = 0; 10776 break; 10777 case ASC_IS_EISA: 10778 share_irq = IRQF_SHARED; 10779 break; 10780 #endif /* CONFIG_ISA */ 10781 #ifdef CONFIG_PCI 10782 case ASC_IS_PCI: 10783 share_irq = IRQF_SHARED; 10784 break; 10785 #endif /* CONFIG_PCI */ 10786 default: 10787 shost_printk(KERN_ERR, shost, "unknown adapter type: " 10788 "%d\n", asc_dvc_varp->bus_type); 10789 share_irq = 0; 10790 break; 10791 } 10792 10793 /* 10794 * NOTE: AscInitGetConfig() may change the board's 10795 * bus_type value. The bus_type value should no 10796 * longer be used. If the bus_type field must be 10797 * referenced only use the bit-wise AND operator "&". 10798 */ 10799 ASC_DBG(2, "AscInitGetConfig()\n"); 10800 ret = AscInitGetConfig(shost) ? -ENODEV : 0; 10801 } else { 10802 #ifdef CONFIG_PCI 10803 /* 10804 * For Wide boards set PCI information before calling 10805 * AdvInitGetConfig(). 10806 */ 10807 share_irq = IRQF_SHARED; 10808 ASC_DBG(2, "AdvInitGetConfig()\n"); 10809 10810 ret = AdvInitGetConfig(pdev, shost) ? -ENODEV : 0; 10811 #else 10812 share_irq = 0; 10813 ret = -ENODEV; 10814 #endif /* CONFIG_PCI */ 10815 } 10816 10817 if (ret) 10818 goto err_unmap; 10819 10820 /* 10821 * Save the EEPROM configuration so that it can be displayed 10822 * from /proc/scsi/advansys/[0...]. 10823 */ 10824 if (ASC_NARROW_BOARD(boardp)) { 10825 10826 ASCEEP_CONFIG *ep; 10827 10828 /* 10829 * Set the adapter's target id bit in the 'init_tidmask' field. 10830 */ 10831 boardp->init_tidmask |= 10832 ADV_TID_TO_TIDMASK(asc_dvc_varp->cfg->chip_scsi_id); 10833 10834 /* 10835 * Save EEPROM settings for the board. 10836 */ 10837 ep = &boardp->eep_config.asc_eep; 10838 10839 ep->init_sdtr = asc_dvc_varp->cfg->sdtr_enable; 10840 ep->disc_enable = asc_dvc_varp->cfg->disc_enable; 10841 ep->use_cmd_qng = asc_dvc_varp->cfg->cmd_qng_enabled; 10842 ASC_EEP_SET_DMA_SPD(ep, ASC_DEF_ISA_DMA_SPEED); 10843 ep->start_motor = asc_dvc_varp->start_motor; 10844 ep->cntl = asc_dvc_varp->dvc_cntl; 10845 ep->no_scam = asc_dvc_varp->no_scam; 10846 ep->max_total_qng = asc_dvc_varp->max_total_qng; 10847 ASC_EEP_SET_CHIP_ID(ep, asc_dvc_varp->cfg->chip_scsi_id); 10848 /* 'max_tag_qng' is set to the same value for every device. */ 10849 ep->max_tag_qng = asc_dvc_varp->cfg->max_tag_qng[0]; 10850 ep->adapter_info[0] = asc_dvc_varp->cfg->adapter_info[0]; 10851 ep->adapter_info[1] = asc_dvc_varp->cfg->adapter_info[1]; 10852 ep->adapter_info[2] = asc_dvc_varp->cfg->adapter_info[2]; 10853 ep->adapter_info[3] = asc_dvc_varp->cfg->adapter_info[3]; 10854 ep->adapter_info[4] = asc_dvc_varp->cfg->adapter_info[4]; 10855 ep->adapter_info[5] = asc_dvc_varp->cfg->adapter_info[5]; 10856 10857 /* 10858 * Modify board configuration. 10859 */ 10860 ASC_DBG(2, "AscInitSetConfig()\n"); 10861 ret = AscInitSetConfig(pdev, shost) ? -ENODEV : 0; 10862 if (ret) 10863 goto err_unmap; 10864 } else { 10865 ADVEEP_3550_CONFIG *ep_3550; 10866 ADVEEP_38C0800_CONFIG *ep_38C0800; 10867 ADVEEP_38C1600_CONFIG *ep_38C1600; 10868 10869 /* 10870 * Save Wide EEP Configuration Information. 10871 */ 10872 if (adv_dvc_varp->chip_type == ADV_CHIP_ASC3550) { 10873 ep_3550 = &boardp->eep_config.adv_3550_eep; 10874 10875 ep_3550->adapter_scsi_id = adv_dvc_varp->chip_scsi_id; 10876 ep_3550->max_host_qng = adv_dvc_varp->max_host_qng; 10877 ep_3550->max_dvc_qng = adv_dvc_varp->max_dvc_qng; 10878 ep_3550->termination = adv_dvc_varp->cfg->termination; 10879 ep_3550->disc_enable = adv_dvc_varp->cfg->disc_enable; 10880 ep_3550->bios_ctrl = adv_dvc_varp->bios_ctrl; 10881 ep_3550->wdtr_able = adv_dvc_varp->wdtr_able; 10882 ep_3550->sdtr_able = adv_dvc_varp->sdtr_able; 10883 ep_3550->ultra_able = adv_dvc_varp->ultra_able; 10884 ep_3550->tagqng_able = adv_dvc_varp->tagqng_able; 10885 ep_3550->start_motor = adv_dvc_varp->start_motor; 10886 ep_3550->scsi_reset_delay = 10887 adv_dvc_varp->scsi_reset_wait; 10888 ep_3550->serial_number_word1 = 10889 adv_dvc_varp->cfg->serial1; 10890 ep_3550->serial_number_word2 = 10891 adv_dvc_varp->cfg->serial2; 10892 ep_3550->serial_number_word3 = 10893 adv_dvc_varp->cfg->serial3; 10894 } else if (adv_dvc_varp->chip_type == ADV_CHIP_ASC38C0800) { 10895 ep_38C0800 = &boardp->eep_config.adv_38C0800_eep; 10896 10897 ep_38C0800->adapter_scsi_id = 10898 adv_dvc_varp->chip_scsi_id; 10899 ep_38C0800->max_host_qng = adv_dvc_varp->max_host_qng; 10900 ep_38C0800->max_dvc_qng = adv_dvc_varp->max_dvc_qng; 10901 ep_38C0800->termination_lvd = 10902 adv_dvc_varp->cfg->termination; 10903 ep_38C0800->disc_enable = 10904 adv_dvc_varp->cfg->disc_enable; 10905 ep_38C0800->bios_ctrl = adv_dvc_varp->bios_ctrl; 10906 ep_38C0800->wdtr_able = adv_dvc_varp->wdtr_able; 10907 ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able; 10908 ep_38C0800->sdtr_speed1 = adv_dvc_varp->sdtr_speed1; 10909 ep_38C0800->sdtr_speed2 = adv_dvc_varp->sdtr_speed2; 10910 ep_38C0800->sdtr_speed3 = adv_dvc_varp->sdtr_speed3; 10911 ep_38C0800->sdtr_speed4 = adv_dvc_varp->sdtr_speed4; 10912 ep_38C0800->tagqng_able = adv_dvc_varp->tagqng_able; 10913 ep_38C0800->start_motor = adv_dvc_varp->start_motor; 10914 ep_38C0800->scsi_reset_delay = 10915 adv_dvc_varp->scsi_reset_wait; 10916 ep_38C0800->serial_number_word1 = 10917 adv_dvc_varp->cfg->serial1; 10918 ep_38C0800->serial_number_word2 = 10919 adv_dvc_varp->cfg->serial2; 10920 ep_38C0800->serial_number_word3 = 10921 adv_dvc_varp->cfg->serial3; 10922 } else { 10923 ep_38C1600 = &boardp->eep_config.adv_38C1600_eep; 10924 10925 ep_38C1600->adapter_scsi_id = 10926 adv_dvc_varp->chip_scsi_id; 10927 ep_38C1600->max_host_qng = adv_dvc_varp->max_host_qng; 10928 ep_38C1600->max_dvc_qng = adv_dvc_varp->max_dvc_qng; 10929 ep_38C1600->termination_lvd = 10930 adv_dvc_varp->cfg->termination; 10931 ep_38C1600->disc_enable = 10932 adv_dvc_varp->cfg->disc_enable; 10933 ep_38C1600->bios_ctrl = adv_dvc_varp->bios_ctrl; 10934 ep_38C1600->wdtr_able = adv_dvc_varp->wdtr_able; 10935 ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able; 10936 ep_38C1600->sdtr_speed1 = adv_dvc_varp->sdtr_speed1; 10937 ep_38C1600->sdtr_speed2 = adv_dvc_varp->sdtr_speed2; 10938 ep_38C1600->sdtr_speed3 = adv_dvc_varp->sdtr_speed3; 10939 ep_38C1600->sdtr_speed4 = adv_dvc_varp->sdtr_speed4; 10940 ep_38C1600->tagqng_able = adv_dvc_varp->tagqng_able; 10941 ep_38C1600->start_motor = adv_dvc_varp->start_motor; 10942 ep_38C1600->scsi_reset_delay = 10943 adv_dvc_varp->scsi_reset_wait; 10944 ep_38C1600->serial_number_word1 = 10945 adv_dvc_varp->cfg->serial1; 10946 ep_38C1600->serial_number_word2 = 10947 adv_dvc_varp->cfg->serial2; 10948 ep_38C1600->serial_number_word3 = 10949 adv_dvc_varp->cfg->serial3; 10950 } 10951 10952 /* 10953 * Set the adapter's target id bit in the 'init_tidmask' field. 10954 */ 10955 boardp->init_tidmask |= 10956 ADV_TID_TO_TIDMASK(adv_dvc_varp->chip_scsi_id); 10957 } 10958 10959 /* 10960 * Channels are numbered beginning with 0. For AdvanSys one host 10961 * structure supports one channel. Multi-channel boards have a 10962 * separate host structure for each channel. 10963 */ 10964 shost->max_channel = 0; 10965 if (ASC_NARROW_BOARD(boardp)) { 10966 shost->max_id = ASC_MAX_TID + 1; 10967 shost->max_lun = ASC_MAX_LUN + 1; 10968 shost->max_cmd_len = ASC_MAX_CDB_LEN; 10969 10970 shost->io_port = asc_dvc_varp->iop_base; 10971 boardp->asc_n_io_port = ASC_IOADR_GAP; 10972 shost->this_id = asc_dvc_varp->cfg->chip_scsi_id; 10973 10974 /* Set maximum number of queues the adapter can handle. */ 10975 shost->can_queue = asc_dvc_varp->max_total_qng; 10976 } else { 10977 shost->max_id = ADV_MAX_TID + 1; 10978 shost->max_lun = ADV_MAX_LUN + 1; 10979 shost->max_cmd_len = ADV_MAX_CDB_LEN; 10980 10981 /* 10982 * Save the I/O Port address and length even though 10983 * I/O ports are not used to access Wide boards. 10984 * Instead the Wide boards are accessed with 10985 * PCI Memory Mapped I/O. 10986 */ 10987 shost->io_port = iop; 10988 10989 shost->this_id = adv_dvc_varp->chip_scsi_id; 10990 10991 /* Set maximum number of queues the adapter can handle. */ 10992 shost->can_queue = adv_dvc_varp->max_host_qng; 10993 } 10994 10995 /* 10996 * Set the maximum number of scatter-gather elements the 10997 * adapter can handle. 10998 */ 10999 if (ASC_NARROW_BOARD(boardp)) { 11000 /* 11001 * Allow two commands with 'sg_tablesize' scatter-gather 11002 * elements to be executed simultaneously. This value is 11003 * the theoretical hardware limit. It may be decreased 11004 * below. 11005 */ 11006 shost->sg_tablesize = 11007 (((asc_dvc_varp->max_total_qng - 2) / 2) * 11008 ASC_SG_LIST_PER_Q) + 1; 11009 } else { 11010 shost->sg_tablesize = ADV_MAX_SG_LIST; 11011 } 11012 11013 /* 11014 * The value of 'sg_tablesize' can not exceed the SCSI 11015 * mid-level driver definition of SG_ALL. SG_ALL also 11016 * must not be exceeded, because it is used to define the 11017 * size of the scatter-gather table in 'struct asc_sg_head'. 11018 */ 11019 if (shost->sg_tablesize > SG_ALL) { 11020 shost->sg_tablesize = SG_ALL; 11021 } 11022 11023 ASC_DBG(1, "sg_tablesize: %d\n", shost->sg_tablesize); 11024 11025 /* BIOS start address. */ 11026 if (ASC_NARROW_BOARD(boardp)) { 11027 shost->base = AscGetChipBiosAddress(asc_dvc_varp->iop_base, 11028 asc_dvc_varp->bus_type); 11029 } else { 11030 /* 11031 * Fill-in BIOS board variables. The Wide BIOS saves 11032 * information in LRAM that is used by the driver. 11033 */ 11034 AdvReadWordLram(adv_dvc_varp->iop_base, 11035 BIOS_SIGNATURE, boardp->bios_signature); 11036 AdvReadWordLram(adv_dvc_varp->iop_base, 11037 BIOS_VERSION, boardp->bios_version); 11038 AdvReadWordLram(adv_dvc_varp->iop_base, 11039 BIOS_CODESEG, boardp->bios_codeseg); 11040 AdvReadWordLram(adv_dvc_varp->iop_base, 11041 BIOS_CODELEN, boardp->bios_codelen); 11042 11043 ASC_DBG(1, "bios_signature 0x%x, bios_version 0x%x\n", 11044 boardp->bios_signature, boardp->bios_version); 11045 11046 ASC_DBG(1, "bios_codeseg 0x%x, bios_codelen 0x%x\n", 11047 boardp->bios_codeseg, boardp->bios_codelen); 11048 11049 /* 11050 * If the BIOS saved a valid signature, then fill in 11051 * the BIOS code segment base address. 11052 */ 11053 if (boardp->bios_signature == 0x55AA) { 11054 /* 11055 * Convert x86 realmode code segment to a linear 11056 * address by shifting left 4. 11057 */ 11058 shost->base = ((ulong)boardp->bios_codeseg << 4); 11059 } else { 11060 shost->base = 0; 11061 } 11062 } 11063 11064 /* 11065 * Register Board Resources - I/O Port, DMA, IRQ 11066 */ 11067 11068 /* Register DMA Channel for Narrow boards. */ 11069 shost->dma_channel = NO_ISA_DMA; /* Default to no ISA DMA. */ 11070 11071 /* Register IRQ Number. */ 11072 ASC_DBG(2, "request_irq(%d, %p)\n", boardp->irq, shost); 11073 11074 ret = request_irq(boardp->irq, advansys_interrupt, share_irq, 11075 DRV_NAME, shost); 11076 11077 if (ret) { 11078 if (ret == -EBUSY) { 11079 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " 11080 "already in use\n", boardp->irq); 11081 } else if (ret == -EINVAL) { 11082 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " 11083 "not valid\n", boardp->irq); 11084 } else { 11085 shost_printk(KERN_ERR, shost, "request_irq(): IRQ 0x%x " 11086 "failed with %d\n", boardp->irq, ret); 11087 } 11088 goto err_unmap; 11089 } 11090 11091 /* 11092 * Initialize board RISC chip and enable interrupts. 11093 */ 11094 if (ASC_NARROW_BOARD(boardp)) { 11095 ASC_DBG(2, "AscInitAsc1000Driver()\n"); 11096 11097 asc_dvc_varp->overrun_buf = kzalloc(ASC_OVERRUN_BSIZE, GFP_KERNEL); 11098 if (!asc_dvc_varp->overrun_buf) { 11099 ret = -ENOMEM; 11100 goto err_free_irq; 11101 } 11102 warn_code = AscInitAsc1000Driver(asc_dvc_varp); 11103 11104 if (warn_code || asc_dvc_varp->err_code) { 11105 shost_printk(KERN_ERR, shost, "error: init_state 0x%x, " 11106 "warn 0x%x, error 0x%x\n", 11107 asc_dvc_varp->init_state, warn_code, 11108 asc_dvc_varp->err_code); 11109 if (!asc_dvc_varp->overrun_dma) { 11110 ret = -ENODEV; 11111 goto err_free_mem; 11112 } 11113 } 11114 } else { 11115 if (advansys_wide_init_chip(shost)) { 11116 ret = -ENODEV; 11117 goto err_free_mem; 11118 } 11119 } 11120 11121 ASC_DBG_PRT_SCSI_HOST(2, shost); 11122 11123 ret = scsi_add_host(shost, boardp->dev); 11124 if (ret) 11125 goto err_free_mem; 11126 11127 scsi_scan_host(shost); 11128 return 0; 11129 11130 err_free_mem: 11131 if (ASC_NARROW_BOARD(boardp)) { 11132 if (asc_dvc_varp->overrun_dma) 11133 dma_unmap_single(boardp->dev, asc_dvc_varp->overrun_dma, 11134 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE); 11135 kfree(asc_dvc_varp->overrun_buf); 11136 } else 11137 advansys_wide_free_mem(boardp); 11138 err_free_irq: 11139 free_irq(boardp->irq, shost); 11140 err_unmap: 11141 if (boardp->ioremap_addr) 11142 iounmap(boardp->ioremap_addr); 11143 #ifdef CONFIG_PCI 11144 err_shost: 11145 #endif 11146 return ret; 11147 } 11148 11149 /* 11150 * advansys_release() 11151 * 11152 * Release resources allocated for a single AdvanSys adapter. 11153 */ advansys_release(struct Scsi_Host * shost)11154 static int advansys_release(struct Scsi_Host *shost) 11155 { 11156 struct asc_board *board = shost_priv(shost); 11157 ASC_DBG(1, "begin\n"); 11158 scsi_remove_host(shost); 11159 free_irq(board->irq, shost); 11160 11161 if (ASC_NARROW_BOARD(board)) { 11162 dma_unmap_single(board->dev, 11163 board->dvc_var.asc_dvc_var.overrun_dma, 11164 ASC_OVERRUN_BSIZE, DMA_FROM_DEVICE); 11165 kfree(board->dvc_var.asc_dvc_var.overrun_buf); 11166 } else { 11167 iounmap(board->ioremap_addr); 11168 advansys_wide_free_mem(board); 11169 } 11170 scsi_host_put(shost); 11171 ASC_DBG(1, "end\n"); 11172 return 0; 11173 } 11174 11175 #define ASC_IOADR_TABLE_MAX_IX 11 11176 11177 static PortAddr _asc_def_iop_base[ASC_IOADR_TABLE_MAX_IX] = { 11178 0x100, 0x0110, 0x120, 0x0130, 0x140, 0x0150, 0x0190, 11179 0x0210, 0x0230, 0x0250, 0x0330 11180 }; 11181 advansys_vlb_remove(struct device * dev,unsigned int id)11182 static void advansys_vlb_remove(struct device *dev, unsigned int id) 11183 { 11184 int ioport = _asc_def_iop_base[id]; 11185 advansys_release(dev_get_drvdata(dev)); 11186 release_region(ioport, ASC_IOADR_GAP); 11187 } 11188 11189 /* 11190 * The VLB IRQ number is found in bits 2 to 4 of the CfgLsw. It decodes as: 11191 * 000: invalid 11192 * 001: 10 11193 * 010: 11 11194 * 011: 12 11195 * 100: invalid 11196 * 101: 14 11197 * 110: 15 11198 * 111: invalid 11199 */ advansys_vlb_irq_no(PortAddr iop_base)11200 static unsigned int advansys_vlb_irq_no(PortAddr iop_base) 11201 { 11202 unsigned short cfg_lsw = AscGetChipCfgLsw(iop_base); 11203 unsigned int chip_irq = ((cfg_lsw >> 2) & 0x07) + 9; 11204 if ((chip_irq < 10) || (chip_irq == 13) || (chip_irq > 15)) 11205 return 0; 11206 return chip_irq; 11207 } 11208 advansys_vlb_probe(struct device * dev,unsigned int id)11209 static int advansys_vlb_probe(struct device *dev, unsigned int id) 11210 { 11211 int err = -ENODEV; 11212 PortAddr iop_base = _asc_def_iop_base[id]; 11213 struct Scsi_Host *shost; 11214 struct asc_board *board; 11215 11216 if (!request_region(iop_base, ASC_IOADR_GAP, DRV_NAME)) { 11217 ASC_DBG(1, "I/O port 0x%x busy\n", iop_base); 11218 return -ENODEV; 11219 } 11220 ASC_DBG(1, "probing I/O port 0x%x\n", iop_base); 11221 if (!AscFindSignature(iop_base)) 11222 goto release_region; 11223 /* 11224 * I don't think this condition can actually happen, but the old 11225 * driver did it, and the chances of finding a VLB setup in 2007 11226 * to do testing with is slight to none. 11227 */ 11228 if (AscGetChipVersion(iop_base, ASC_IS_VL) > ASC_CHIP_MAX_VER_VL) 11229 goto release_region; 11230 11231 err = -ENOMEM; 11232 shost = scsi_host_alloc(&advansys_template, sizeof(*board)); 11233 if (!shost) 11234 goto release_region; 11235 11236 board = shost_priv(shost); 11237 board->irq = advansys_vlb_irq_no(iop_base); 11238 board->dev = dev; 11239 board->shost = shost; 11240 11241 err = advansys_board_found(shost, iop_base, ASC_IS_VL); 11242 if (err) 11243 goto free_host; 11244 11245 dev_set_drvdata(dev, shost); 11246 return 0; 11247 11248 free_host: 11249 scsi_host_put(shost); 11250 release_region: 11251 release_region(iop_base, ASC_IOADR_GAP); 11252 return -ENODEV; 11253 } 11254 11255 static struct isa_driver advansys_vlb_driver = { 11256 .probe = advansys_vlb_probe, 11257 .remove = advansys_vlb_remove, 11258 .driver = { 11259 .owner = THIS_MODULE, 11260 .name = "advansys_vlb", 11261 }, 11262 }; 11263 11264 static struct eisa_device_id advansys_eisa_table[] = { 11265 { "ABP7401" }, 11266 { "ABP7501" }, 11267 { "" } 11268 }; 11269 11270 MODULE_DEVICE_TABLE(eisa, advansys_eisa_table); 11271 11272 /* 11273 * EISA is a little more tricky than PCI; each EISA device may have two 11274 * channels, and this driver is written to make each channel its own Scsi_Host 11275 */ 11276 struct eisa_scsi_data { 11277 struct Scsi_Host *host[2]; 11278 }; 11279 11280 /* 11281 * The EISA IRQ number is found in bits 8 to 10 of the CfgLsw. It decodes as: 11282 * 000: 10 11283 * 001: 11 11284 * 010: 12 11285 * 011: invalid 11286 * 100: 14 11287 * 101: 15 11288 * 110: invalid 11289 * 111: invalid 11290 */ advansys_eisa_irq_no(struct eisa_device * edev)11291 static unsigned int advansys_eisa_irq_no(struct eisa_device *edev) 11292 { 11293 unsigned short cfg_lsw = inw(edev->base_addr + 0xc86); 11294 unsigned int chip_irq = ((cfg_lsw >> 8) & 0x07) + 10; 11295 if ((chip_irq == 13) || (chip_irq > 15)) 11296 return 0; 11297 return chip_irq; 11298 } 11299 advansys_eisa_probe(struct device * dev)11300 static int advansys_eisa_probe(struct device *dev) 11301 { 11302 int i, ioport, irq = 0; 11303 int err; 11304 struct eisa_device *edev = to_eisa_device(dev); 11305 struct eisa_scsi_data *data; 11306 11307 err = -ENOMEM; 11308 data = kzalloc(sizeof(*data), GFP_KERNEL); 11309 if (!data) 11310 goto fail; 11311 ioport = edev->base_addr + 0xc30; 11312 11313 err = -ENODEV; 11314 for (i = 0; i < 2; i++, ioport += 0x20) { 11315 struct asc_board *board; 11316 struct Scsi_Host *shost; 11317 if (!request_region(ioport, ASC_IOADR_GAP, DRV_NAME)) { 11318 printk(KERN_WARNING "Region %x-%x busy\n", ioport, 11319 ioport + ASC_IOADR_GAP - 1); 11320 continue; 11321 } 11322 if (!AscFindSignature(ioport)) { 11323 release_region(ioport, ASC_IOADR_GAP); 11324 continue; 11325 } 11326 11327 /* 11328 * I don't know why we need to do this for EISA chips, but 11329 * not for any others. It looks to be equivalent to 11330 * AscGetChipCfgMsw, but I may have overlooked something, 11331 * so I'm not converting it until I get an EISA board to 11332 * test with. 11333 */ 11334 inw(ioport + 4); 11335 11336 if (!irq) 11337 irq = advansys_eisa_irq_no(edev); 11338 11339 err = -ENOMEM; 11340 shost = scsi_host_alloc(&advansys_template, sizeof(*board)); 11341 if (!shost) 11342 goto release_region; 11343 11344 board = shost_priv(shost); 11345 board->irq = irq; 11346 board->dev = dev; 11347 board->shost = shost; 11348 11349 err = advansys_board_found(shost, ioport, ASC_IS_EISA); 11350 if (!err) { 11351 data->host[i] = shost; 11352 continue; 11353 } 11354 11355 scsi_host_put(shost); 11356 release_region: 11357 release_region(ioport, ASC_IOADR_GAP); 11358 break; 11359 } 11360 11361 if (err) 11362 goto free_data; 11363 dev_set_drvdata(dev, data); 11364 return 0; 11365 11366 free_data: 11367 kfree(data->host[0]); 11368 kfree(data->host[1]); 11369 kfree(data); 11370 fail: 11371 return err; 11372 } 11373 advansys_eisa_remove(struct device * dev)11374 static int advansys_eisa_remove(struct device *dev) 11375 { 11376 int i; 11377 struct eisa_scsi_data *data = dev_get_drvdata(dev); 11378 11379 for (i = 0; i < 2; i++) { 11380 int ioport; 11381 struct Scsi_Host *shost = data->host[i]; 11382 if (!shost) 11383 continue; 11384 ioport = shost->io_port; 11385 advansys_release(shost); 11386 release_region(ioport, ASC_IOADR_GAP); 11387 } 11388 11389 kfree(data); 11390 return 0; 11391 } 11392 11393 static struct eisa_driver advansys_eisa_driver = { 11394 .id_table = advansys_eisa_table, 11395 .driver = { 11396 .name = DRV_NAME, 11397 .probe = advansys_eisa_probe, 11398 .remove = advansys_eisa_remove, 11399 } 11400 }; 11401 11402 /* PCI Devices supported by this driver */ 11403 static struct pci_device_id advansys_pci_tbl[] = { 11404 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_1200A, 11405 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11406 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940, 11407 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11408 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940U, 11409 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11410 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_ASP_ABP940UW, 11411 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11412 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C0800_REV1, 11413 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11414 {PCI_VENDOR_ID_ASP, PCI_DEVICE_ID_38C1600_REV1, 11415 PCI_ANY_ID, PCI_ANY_ID, 0, 0, 0}, 11416 {} 11417 }; 11418 11419 MODULE_DEVICE_TABLE(pci, advansys_pci_tbl); 11420 advansys_set_latency(struct pci_dev * pdev)11421 static void advansys_set_latency(struct pci_dev *pdev) 11422 { 11423 if ((pdev->device == PCI_DEVICE_ID_ASP_1200A) || 11424 (pdev->device == PCI_DEVICE_ID_ASP_ABP940)) { 11425 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0); 11426 } else { 11427 u8 latency; 11428 pci_read_config_byte(pdev, PCI_LATENCY_TIMER, &latency); 11429 if (latency < 0x20) 11430 pci_write_config_byte(pdev, PCI_LATENCY_TIMER, 0x20); 11431 } 11432 } 11433 advansys_pci_probe(struct pci_dev * pdev,const struct pci_device_id * ent)11434 static int advansys_pci_probe(struct pci_dev *pdev, 11435 const struct pci_device_id *ent) 11436 { 11437 int err, ioport; 11438 struct Scsi_Host *shost; 11439 struct asc_board *board; 11440 11441 err = pci_enable_device(pdev); 11442 if (err) 11443 goto fail; 11444 err = pci_request_regions(pdev, DRV_NAME); 11445 if (err) 11446 goto disable_device; 11447 pci_set_master(pdev); 11448 advansys_set_latency(pdev); 11449 11450 err = -ENODEV; 11451 if (pci_resource_len(pdev, 0) == 0) 11452 goto release_region; 11453 11454 ioport = pci_resource_start(pdev, 0); 11455 11456 err = -ENOMEM; 11457 shost = scsi_host_alloc(&advansys_template, sizeof(*board)); 11458 if (!shost) 11459 goto release_region; 11460 11461 board = shost_priv(shost); 11462 board->irq = pdev->irq; 11463 board->dev = &pdev->dev; 11464 board->shost = shost; 11465 11466 if (pdev->device == PCI_DEVICE_ID_ASP_ABP940UW || 11467 pdev->device == PCI_DEVICE_ID_38C0800_REV1 || 11468 pdev->device == PCI_DEVICE_ID_38C1600_REV1) { 11469 board->flags |= ASC_IS_WIDE_BOARD; 11470 } 11471 11472 err = advansys_board_found(shost, ioport, ASC_IS_PCI); 11473 if (err) 11474 goto free_host; 11475 11476 pci_set_drvdata(pdev, shost); 11477 return 0; 11478 11479 free_host: 11480 scsi_host_put(shost); 11481 release_region: 11482 pci_release_regions(pdev); 11483 disable_device: 11484 pci_disable_device(pdev); 11485 fail: 11486 return err; 11487 } 11488 advansys_pci_remove(struct pci_dev * pdev)11489 static void advansys_pci_remove(struct pci_dev *pdev) 11490 { 11491 advansys_release(pci_get_drvdata(pdev)); 11492 pci_release_regions(pdev); 11493 pci_disable_device(pdev); 11494 } 11495 11496 static struct pci_driver advansys_pci_driver = { 11497 .name = DRV_NAME, 11498 .id_table = advansys_pci_tbl, 11499 .probe = advansys_pci_probe, 11500 .remove = advansys_pci_remove, 11501 }; 11502 advansys_init(void)11503 static int __init advansys_init(void) 11504 { 11505 int error; 11506 11507 error = isa_register_driver(&advansys_vlb_driver, 11508 ASC_IOADR_TABLE_MAX_IX); 11509 if (error) 11510 goto fail; 11511 11512 error = eisa_driver_register(&advansys_eisa_driver); 11513 if (error) 11514 goto unregister_vlb; 11515 11516 error = pci_register_driver(&advansys_pci_driver); 11517 if (error) 11518 goto unregister_eisa; 11519 11520 return 0; 11521 11522 unregister_eisa: 11523 eisa_driver_unregister(&advansys_eisa_driver); 11524 unregister_vlb: 11525 isa_unregister_driver(&advansys_vlb_driver); 11526 fail: 11527 return error; 11528 } 11529 advansys_exit(void)11530 static void __exit advansys_exit(void) 11531 { 11532 pci_unregister_driver(&advansys_pci_driver); 11533 eisa_driver_unregister(&advansys_eisa_driver); 11534 isa_unregister_driver(&advansys_vlb_driver); 11535 } 11536 11537 module_init(advansys_init); 11538 module_exit(advansys_exit); 11539 11540 MODULE_LICENSE("GPL"); 11541 MODULE_FIRMWARE("advansys/mcode.bin"); 11542 MODULE_FIRMWARE("advansys/3550.bin"); 11543 MODULE_FIRMWARE("advansys/38C0800.bin"); 11544 MODULE_FIRMWARE("advansys/38C1600.bin"); 11545
