1 /* SPDX-License-Identifier: GPL-2.0-or-later */ 2 /* 3 * Copyright(c) 2005 - 2006 Attansic Corporation. All rights reserved. 4 * Copyright(c) 2006 - 2007 Chris Snook <csnook@redhat.com> 5 * Copyright(c) 2006 - 2008 Jay Cliburn <jcliburn@gmail.com> 6 * 7 * Derived from Intel e1000 driver 8 * Copyright(c) 1999 - 2005 Intel Corporation. All rights reserved. 9 */ 10 11 #ifndef ATL1_H 12 #define ATL1_H 13 14 #include <linux/compiler.h> 15 #include <linux/ethtool.h> 16 #include <linux/if_vlan.h> 17 #include <linux/mii.h> 18 #include <linux/module.h> 19 #include <linux/skbuff.h> 20 #include <linux/spinlock.h> 21 #include <linux/timer.h> 22 #include <linux/types.h> 23 #include <linux/workqueue.h> 24 25 #include "atlx.h" 26 27 #define ATLX_DRIVER_NAME "atl1" 28 29 MODULE_DESCRIPTION("Atheros L1 Gigabit Ethernet Driver"); 30 31 #define atlx_adapter atl1_adapter 32 #define atlx_check_for_link atl1_check_for_link 33 #define atlx_check_link atl1_check_link 34 #define atlx_hash_mc_addr atl1_hash_mc_addr 35 #define atlx_hash_set atl1_hash_set 36 #define atlx_hw atl1_hw 37 #define atlx_mii_ioctl atl1_mii_ioctl 38 #define atlx_read_phy_reg atl1_read_phy_reg 39 #define atlx_set_mac atl1_set_mac 40 #define atlx_set_mac_addr atl1_set_mac_addr 41 42 struct atl1_adapter; 43 struct atl1_hw; 44 45 /* function prototypes needed by multiple files */ 46 static u32 atl1_hash_mc_addr(struct atl1_hw *hw, u8 *mc_addr); 47 static void atl1_hash_set(struct atl1_hw *hw, u32 hash_value); 48 static void atl1_set_mac_addr(struct atl1_hw *hw); 49 static int atl1_mii_ioctl(struct net_device *netdev, struct ifreq *ifr, 50 int cmd); 51 static u32 atl1_check_link(struct atl1_adapter *adapter); 52 53 /* hardware definitions specific to L1 */ 54 55 /* Block IDLE Status Register */ 56 #define IDLE_STATUS_RXMAC 0x1 57 #define IDLE_STATUS_TXMAC 0x2 58 #define IDLE_STATUS_RXQ 0x4 59 #define IDLE_STATUS_TXQ 0x8 60 #define IDLE_STATUS_DMAR 0x10 61 #define IDLE_STATUS_DMAW 0x20 62 #define IDLE_STATUS_SMB 0x40 63 #define IDLE_STATUS_CMB 0x80 64 65 /* MDIO Control Register */ 66 #define MDIO_WAIT_TIMES 30 67 68 /* MAC Control Register */ 69 #define MAC_CTRL_TX_PAUSE 0x10000 70 #define MAC_CTRL_SCNT 0x20000 71 #define MAC_CTRL_SRST_TX 0x40000 72 #define MAC_CTRL_TX_SIMURST 0x80000 73 #define MAC_CTRL_SPEED_SHIFT 20 74 #define MAC_CTRL_SPEED_MASK 0x300000 75 #define MAC_CTRL_SPEED_1000 0x2 76 #define MAC_CTRL_SPEED_10_100 0x1 77 #define MAC_CTRL_DBG_TX_BKPRESURE 0x400000 78 #define MAC_CTRL_TX_HUGE 0x800000 79 #define MAC_CTRL_RX_CHKSUM_EN 0x1000000 80 #define MAC_CTRL_DBG 0x8000000 81 82 /* Wake-On-Lan control register */ 83 #define WOL_CLK_SWITCH_EN 0x8000 84 #define WOL_PT5_EN 0x200000 85 #define WOL_PT6_EN 0x400000 86 #define WOL_PT5_MATCH 0x8000000 87 #define WOL_PT6_MATCH 0x10000000 88 89 /* WOL Length ( 2 DWORD ) */ 90 #define REG_WOL_PATTERN_LEN 0x14A4 91 #define WOL_PT_LEN_MASK 0x7F 92 #define WOL_PT0_LEN_SHIFT 0 93 #define WOL_PT1_LEN_SHIFT 8 94 #define WOL_PT2_LEN_SHIFT 16 95 #define WOL_PT3_LEN_SHIFT 24 96 #define WOL_PT4_LEN_SHIFT 0 97 #define WOL_PT5_LEN_SHIFT 8 98 #define WOL_PT6_LEN_SHIFT 16 99 100 /* Internal SRAM Partition Registers, low 32 bits */ 101 #define REG_SRAM_RFD_LEN 0x1504 102 #define REG_SRAM_RRD_ADDR 0x1508 103 #define REG_SRAM_RRD_LEN 0x150C 104 #define REG_SRAM_TPD_ADDR 0x1510 105 #define REG_SRAM_TPD_LEN 0x1514 106 #define REG_SRAM_TRD_ADDR 0x1518 107 #define REG_SRAM_TRD_LEN 0x151C 108 #define REG_SRAM_RXF_ADDR 0x1520 109 #define REG_SRAM_RXF_LEN 0x1524 110 #define REG_SRAM_TXF_ADDR 0x1528 111 #define REG_SRAM_TXF_LEN 0x152C 112 #define REG_SRAM_TCPH_PATH_ADDR 0x1530 113 #define SRAM_TCPH_ADDR_MASK 0xFFF 114 #define SRAM_TCPH_ADDR_SHIFT 0 115 #define SRAM_PATH_ADDR_MASK 0xFFF 116 #define SRAM_PATH_ADDR_SHIFT 16 117 118 /* Load Ptr Register */ 119 #define REG_LOAD_PTR 0x1534 120 121 /* Descriptor Control registers, low 32 bits */ 122 #define REG_DESC_RFD_ADDR_LO 0x1544 123 #define REG_DESC_RRD_ADDR_LO 0x1548 124 #define REG_DESC_TPD_ADDR_LO 0x154C 125 #define REG_DESC_CMB_ADDR_LO 0x1550 126 #define REG_DESC_SMB_ADDR_LO 0x1554 127 #define REG_DESC_RFD_RRD_RING_SIZE 0x1558 128 #define DESC_RFD_RING_SIZE_MASK 0x7FF 129 #define DESC_RFD_RING_SIZE_SHIFT 0 130 #define DESC_RRD_RING_SIZE_MASK 0x7FF 131 #define DESC_RRD_RING_SIZE_SHIFT 16 132 #define REG_DESC_TPD_RING_SIZE 0x155C 133 #define DESC_TPD_RING_SIZE_MASK 0x3FF 134 #define DESC_TPD_RING_SIZE_SHIFT 0 135 136 /* TXQ Control Register */ 137 #define REG_TXQ_CTRL 0x1580 138 #define TXQ_CTRL_TPD_BURST_NUM_SHIFT 0 139 #define TXQ_CTRL_TPD_BURST_NUM_MASK 0x1F 140 #define TXQ_CTRL_EN 0x20 141 #define TXQ_CTRL_ENH_MODE 0x40 142 #define TXQ_CTRL_TPD_FETCH_TH_SHIFT 8 143 #define TXQ_CTRL_TPD_FETCH_TH_MASK 0x3F 144 #define TXQ_CTRL_TXF_BURST_NUM_SHIFT 16 145 #define TXQ_CTRL_TXF_BURST_NUM_MASK 0xFFFF 146 147 /* Jumbo packet Threshold for task offload */ 148 #define REG_TX_JUMBO_TASK_TH_TPD_IPG 0x1584 149 #define TX_JUMBO_TASK_TH_MASK 0x7FF 150 #define TX_JUMBO_TASK_TH_SHIFT 0 151 #define TX_TPD_MIN_IPG_MASK 0x1F 152 #define TX_TPD_MIN_IPG_SHIFT 16 153 154 /* RXQ Control Register */ 155 #define REG_RXQ_CTRL 0x15A0 156 #define RXQ_CTRL_RFD_BURST_NUM_SHIFT 0 157 #define RXQ_CTRL_RFD_BURST_NUM_MASK 0xFF 158 #define RXQ_CTRL_RRD_BURST_THRESH_SHIFT 8 159 #define RXQ_CTRL_RRD_BURST_THRESH_MASK 0xFF 160 #define RXQ_CTRL_RFD_PREF_MIN_IPG_SHIFT 16 161 #define RXQ_CTRL_RFD_PREF_MIN_IPG_MASK 0x1F 162 #define RXQ_CTRL_CUT_THRU_EN 0x40000000 163 #define RXQ_CTRL_EN 0x80000000 164 165 /* Rx jumbo packet threshold and rrd retirement timer */ 166 #define REG_RXQ_JMBOSZ_RRDTIM 0x15A4 167 #define RXQ_JMBOSZ_TH_MASK 0x7FF 168 #define RXQ_JMBOSZ_TH_SHIFT 0 169 #define RXQ_JMBO_LKAH_MASK 0xF 170 #define RXQ_JMBO_LKAH_SHIFT 11 171 #define RXQ_RRD_TIMER_MASK 0xFFFF 172 #define RXQ_RRD_TIMER_SHIFT 16 173 174 /* RFD flow control register */ 175 #define REG_RXQ_RXF_PAUSE_THRESH 0x15A8 176 #define RXQ_RXF_PAUSE_TH_HI_SHIFT 16 177 #define RXQ_RXF_PAUSE_TH_HI_MASK 0xFFF 178 #define RXQ_RXF_PAUSE_TH_LO_SHIFT 0 179 #define RXQ_RXF_PAUSE_TH_LO_MASK 0xFFF 180 181 /* RRD flow control register */ 182 #define REG_RXQ_RRD_PAUSE_THRESH 0x15AC 183 #define RXQ_RRD_PAUSE_TH_HI_SHIFT 0 184 #define RXQ_RRD_PAUSE_TH_HI_MASK 0xFFF 185 #define RXQ_RRD_PAUSE_TH_LO_SHIFT 16 186 #define RXQ_RRD_PAUSE_TH_LO_MASK 0xFFF 187 188 /* DMA Engine Control Register */ 189 #define REG_DMA_CTRL 0x15C0 190 #define DMA_CTRL_DMAR_IN_ORDER 0x1 191 #define DMA_CTRL_DMAR_ENH_ORDER 0x2 192 #define DMA_CTRL_DMAR_OUT_ORDER 0x4 193 #define DMA_CTRL_RCB_VALUE 0x8 194 #define DMA_CTRL_DMAR_BURST_LEN_SHIFT 4 195 #define DMA_CTRL_DMAR_BURST_LEN_MASK 7 196 #define DMA_CTRL_DMAW_BURST_LEN_SHIFT 7 197 #define DMA_CTRL_DMAW_BURST_LEN_MASK 7 198 #define DMA_CTRL_DMAR_EN 0x400 199 #define DMA_CTRL_DMAW_EN 0x800 200 201 /* CMB/SMB Control Register */ 202 #define REG_CSMB_CTRL 0x15D0 203 #define CSMB_CTRL_CMB_NOW 1 204 #define CSMB_CTRL_SMB_NOW 2 205 #define CSMB_CTRL_CMB_EN 4 206 #define CSMB_CTRL_SMB_EN 8 207 208 /* CMB DMA Write Threshold Register */ 209 #define REG_CMB_WRITE_TH 0x15D4 210 #define CMB_RRD_TH_SHIFT 0 211 #define CMB_RRD_TH_MASK 0x7FF 212 #define CMB_TPD_TH_SHIFT 16 213 #define CMB_TPD_TH_MASK 0x7FF 214 215 /* RX/TX count-down timer to trigger CMB-write. 2us resolution. */ 216 #define REG_CMB_WRITE_TIMER 0x15D8 217 #define CMB_RX_TM_SHIFT 0 218 #define CMB_RX_TM_MASK 0xFFFF 219 #define CMB_TX_TM_SHIFT 16 220 #define CMB_TX_TM_MASK 0xFFFF 221 222 /* Number of packet received since last CMB write */ 223 #define REG_CMB_RX_PKT_CNT 0x15DC 224 225 /* Number of packet transmitted since last CMB write */ 226 #define REG_CMB_TX_PKT_CNT 0x15E0 227 228 /* SMB auto DMA timer register */ 229 #define REG_SMB_TIMER 0x15E4 230 231 /* Mailbox Register */ 232 #define REG_MAILBOX 0x15F0 233 #define MB_RFD_PROD_INDX_SHIFT 0 234 #define MB_RFD_PROD_INDX_MASK 0x7FF 235 #define MB_RRD_CONS_INDX_SHIFT 11 236 #define MB_RRD_CONS_INDX_MASK 0x7FF 237 #define MB_TPD_PROD_INDX_SHIFT 22 238 #define MB_TPD_PROD_INDX_MASK 0x3FF 239 240 /* Interrupt Status Register */ 241 #define ISR_SMB 0x1 242 #define ISR_TIMER 0x2 243 #define ISR_MANUAL 0x4 244 #define ISR_RXF_OV 0x8 245 #define ISR_RFD_UNRUN 0x10 246 #define ISR_RRD_OV 0x20 247 #define ISR_TXF_UNRUN 0x40 248 #define ISR_LINK 0x80 249 #define ISR_HOST_RFD_UNRUN 0x100 250 #define ISR_HOST_RRD_OV 0x200 251 #define ISR_DMAR_TO_RST 0x400 252 #define ISR_DMAW_TO_RST 0x800 253 #define ISR_GPHY 0x1000 254 #define ISR_RX_PKT 0x10000 255 #define ISR_TX_PKT 0x20000 256 #define ISR_TX_DMA 0x40000 257 #define ISR_RX_DMA 0x80000 258 #define ISR_CMB_RX 0x100000 259 #define ISR_CMB_TX 0x200000 260 #define ISR_MAC_RX 0x400000 261 #define ISR_MAC_TX 0x800000 262 #define ISR_DIS_SMB 0x20000000 263 #define ISR_DIS_DMA 0x40000000 264 265 /* Normal Interrupt mask without RX/TX enabled */ 266 #define IMR_NORXTX_MASK (\ 267 ISR_SMB |\ 268 ISR_GPHY |\ 269 ISR_PHY_LINKDOWN|\ 270 ISR_DMAR_TO_RST |\ 271 ISR_DMAW_TO_RST) 272 273 /* Normal Interrupt mask */ 274 #define IMR_NORMAL_MASK (\ 275 IMR_NORXTX_MASK |\ 276 ISR_CMB_TX |\ 277 ISR_CMB_RX) 278 279 /* Debug Interrupt Mask (enable all interrupt) */ 280 #define IMR_DEBUG_MASK (\ 281 ISR_SMB |\ 282 ISR_TIMER |\ 283 ISR_MANUAL |\ 284 ISR_RXF_OV |\ 285 ISR_RFD_UNRUN |\ 286 ISR_RRD_OV |\ 287 ISR_TXF_UNRUN |\ 288 ISR_LINK |\ 289 ISR_CMB_TX |\ 290 ISR_CMB_RX |\ 291 ISR_RX_PKT |\ 292 ISR_TX_PKT |\ 293 ISR_MAC_RX |\ 294 ISR_MAC_TX) 295 296 #define MEDIA_TYPE_1000M_FULL 1 297 #define MEDIA_TYPE_100M_FULL 2 298 #define MEDIA_TYPE_100M_HALF 3 299 #define MEDIA_TYPE_10M_FULL 4 300 #define MEDIA_TYPE_10M_HALF 5 301 302 #define AUTONEG_ADVERTISE_SPEED_DEFAULT 0x002F /* All but 1000-Half */ 303 304 #define MAX_JUMBO_FRAME_SIZE 10240 305 306 #define ATL1_EEDUMP_LEN 48 307 308 /* Statistics counters collected by the MAC */ 309 struct stats_msg_block { 310 /* rx */ 311 u32 rx_ok; /* good RX packets */ 312 u32 rx_bcast; /* good RX broadcast packets */ 313 u32 rx_mcast; /* good RX multicast packets */ 314 u32 rx_pause; /* RX pause frames */ 315 u32 rx_ctrl; /* RX control packets other than pause frames */ 316 u32 rx_fcs_err; /* RX packets with bad FCS */ 317 u32 rx_len_err; /* RX packets with length != actual size */ 318 u32 rx_byte_cnt; /* good bytes received. FCS is NOT included */ 319 u32 rx_runt; /* RX packets < 64 bytes with good FCS */ 320 u32 rx_frag; /* RX packets < 64 bytes with bad FCS */ 321 u32 rx_sz_64; /* 64 byte RX packets */ 322 u32 rx_sz_65_127; 323 u32 rx_sz_128_255; 324 u32 rx_sz_256_511; 325 u32 rx_sz_512_1023; 326 u32 rx_sz_1024_1518; 327 u32 rx_sz_1519_max; /* 1519 byte to MTU RX packets */ 328 u32 rx_sz_ov; /* truncated RX packets > MTU */ 329 u32 rx_rxf_ov; /* frames dropped due to RX FIFO overflow */ 330 u32 rx_rrd_ov; /* frames dropped due to RRD overflow */ 331 u32 rx_align_err; /* alignment errors */ 332 u32 rx_bcast_byte_cnt; /* RX broadcast bytes, excluding FCS */ 333 u32 rx_mcast_byte_cnt; /* RX multicast bytes, excluding FCS */ 334 u32 rx_err_addr; /* packets dropped due to address filtering */ 335 336 /* tx */ 337 u32 tx_ok; /* good TX packets */ 338 u32 tx_bcast; /* good TX broadcast packets */ 339 u32 tx_mcast; /* good TX multicast packets */ 340 u32 tx_pause; /* TX pause frames */ 341 u32 tx_exc_defer; /* TX packets deferred excessively */ 342 u32 tx_ctrl; /* TX control frames, excluding pause frames */ 343 u32 tx_defer; /* TX packets deferred */ 344 u32 tx_byte_cnt; /* bytes transmitted, FCS is NOT included */ 345 u32 tx_sz_64; /* 64 byte TX packets */ 346 u32 tx_sz_65_127; 347 u32 tx_sz_128_255; 348 u32 tx_sz_256_511; 349 u32 tx_sz_512_1023; 350 u32 tx_sz_1024_1518; 351 u32 tx_sz_1519_max; /* 1519 byte to MTU TX packets */ 352 u32 tx_1_col; /* packets TX after a single collision */ 353 u32 tx_2_col; /* packets TX after multiple collisions */ 354 u32 tx_late_col; /* TX packets with late collisions */ 355 u32 tx_abort_col; /* TX packets aborted w/excessive collisions */ 356 u32 tx_underrun; /* TX packets aborted due to TX FIFO underrun 357 * or TRD FIFO underrun */ 358 u32 tx_rd_eop; /* reads beyond the EOP into the next frame 359 * when TRD was not written timely */ 360 u32 tx_len_err; /* TX packets where length != actual size */ 361 u32 tx_trunc; /* TX packets truncated due to size > MTU */ 362 u32 tx_bcast_byte; /* broadcast bytes transmitted, excluding FCS */ 363 u32 tx_mcast_byte; /* multicast bytes transmitted, excluding FCS */ 364 u32 smb_updated; /* 1: SMB Updated. This is used by software to 365 * indicate the statistics update. Software 366 * should clear this bit after retrieving the 367 * statistics information. */ 368 }; 369 370 /* Coalescing Message Block */ 371 struct coals_msg_block { 372 u32 int_stats; /* interrupt status */ 373 u16 rrd_prod_idx; /* TRD Producer Index. */ 374 u16 rfd_cons_idx; /* RFD Consumer Index. */ 375 u16 update; /* Selene sets this bit every time it DMAs the 376 * CMB to host memory. Software should clear 377 * this bit when CMB info is processed. */ 378 u16 tpd_cons_idx; /* TPD Consumer Index. */ 379 }; 380 381 /* RRD descriptor */ 382 struct rx_return_desc { 383 u8 num_buf; /* Number of RFD buffers used by the received packet */ 384 u8 resved; 385 u16 buf_indx; /* RFD Index of the first buffer */ 386 union { 387 u32 valid; 388 struct { 389 u16 rx_chksum; 390 u16 pkt_size; 391 } xsum_sz; 392 } xsz; 393 394 u16 pkt_flg; /* Packet flags */ 395 u16 err_flg; /* Error flags */ 396 u16 resved2; 397 u16 vlan_tag; /* VLAN TAG */ 398 }; 399 400 #define PACKET_FLAG_ETH_TYPE 0x0080 401 #define PACKET_FLAG_VLAN_INS 0x0100 402 #define PACKET_FLAG_ERR 0x0200 403 #define PACKET_FLAG_IPV4 0x0400 404 #define PACKET_FLAG_UDP 0x0800 405 #define PACKET_FLAG_TCP 0x1000 406 #define PACKET_FLAG_BCAST 0x2000 407 #define PACKET_FLAG_MCAST 0x4000 408 #define PACKET_FLAG_PAUSE 0x8000 409 410 #define ERR_FLAG_CRC 0x0001 411 #define ERR_FLAG_CODE 0x0002 412 #define ERR_FLAG_DRIBBLE 0x0004 413 #define ERR_FLAG_RUNT 0x0008 414 #define ERR_FLAG_OV 0x0010 415 #define ERR_FLAG_TRUNC 0x0020 416 #define ERR_FLAG_IP_CHKSUM 0x0040 417 #define ERR_FLAG_L4_CHKSUM 0x0080 418 #define ERR_FLAG_LEN 0x0100 419 #define ERR_FLAG_DES_ADDR 0x0200 420 421 /* RFD descriptor */ 422 struct rx_free_desc { 423 __le64 buffer_addr; /* Address of the descriptor's data buffer */ 424 __le16 buf_len; /* Size of the receive buffer in host memory */ 425 u16 coalese; /* Update consumer index to host after the 426 * reception of this frame */ 427 /* __packed is required */ 428 } __packed; 429 430 /* 431 * The L1 transmit packet descriptor is comprised of four 32-bit words. 432 * 433 * 31 0 434 * +---------------------------------------+ 435 * | Word 0: Buffer addr lo | 436 * +---------------------------------------+ 437 * | Word 1: Buffer addr hi | 438 * +---------------------------------------+ 439 * | Word 2 | 440 * +---------------------------------------+ 441 * | Word 3 | 442 * +---------------------------------------+ 443 * 444 * Words 0 and 1 combine to form a 64-bit buffer address. 445 * 446 * Word 2 is self explanatory in the #define block below. 447 * 448 * Word 3 has two forms, depending upon the state of bits 3 and 4. 449 * If bits 3 and 4 are both zero, then bits 14:31 are unused by the 450 * hardware. Otherwise, if either bit 3 or 4 is set, the definition 451 * of bits 14:31 vary according to the following depiction. 452 * 453 * 0 End of packet 0 End of packet 454 * 1 Coalesce 1 Coalesce 455 * 2 Insert VLAN tag 2 Insert VLAN tag 456 * 3 Custom csum enable = 0 3 Custom csum enable = 1 457 * 4 Segment enable = 1 4 Segment enable = 0 458 * 5 Generate IP checksum 5 Generate IP checksum 459 * 6 Generate TCP checksum 6 Generate TCP checksum 460 * 7 Generate UDP checksum 7 Generate UDP checksum 461 * 8 VLAN tagged 8 VLAN tagged 462 * 9 Ethernet frame type 9 Ethernet frame type 463 * 10-+ 10-+ 464 * 11 | IP hdr length (10:13) 11 | IP hdr length (10:13) 465 * 12 | (num 32-bit words) 12 | (num 32-bit words) 466 * 13-+ 13-+ 467 * 14-+ 14 Unused 468 * 15 | TCP hdr length (14:17) 15 Unused 469 * 16 | (num 32-bit words) 16-+ 470 * 17-+ 17 | 471 * 18 Header TPD flag 18 | 472 * 19-+ 19 | Payload offset 473 * 20 | 20 | (16:23) 474 * 21 | 21 | 475 * 22 | 22 | 476 * 23 | 23-+ 477 * 24 | 24-+ 478 * 25 | MSS (19:31) 25 | 479 * 26 | 26 | 480 * 27 | 27 | Custom csum offset 481 * 28 | 28 | (24:31) 482 * 29 | 29 | 483 * 30 | 30 | 484 * 31-+ 31-+ 485 */ 486 487 /* tpd word 2 */ 488 #define TPD_BUFLEN_MASK 0x3FFF 489 #define TPD_BUFLEN_SHIFT 0 490 #define TPD_DMAINT_MASK 0x0001 491 #define TPD_DMAINT_SHIFT 14 492 #define TPD_PKTNT_MASK 0x0001 493 #define TPD_PKTINT_SHIFT 15 494 #define TPD_VLANTAG_MASK 0xFFFF 495 #define TPD_VLANTAG_SHIFT 16 496 497 /* tpd word 3 bits 0:13 */ 498 #define TPD_EOP_MASK 0x0001 499 #define TPD_EOP_SHIFT 0 500 #define TPD_COALESCE_MASK 0x0001 501 #define TPD_COALESCE_SHIFT 1 502 #define TPD_INS_VL_TAG_MASK 0x0001 503 #define TPD_INS_VL_TAG_SHIFT 2 504 #define TPD_CUST_CSUM_EN_MASK 0x0001 505 #define TPD_CUST_CSUM_EN_SHIFT 3 506 #define TPD_SEGMENT_EN_MASK 0x0001 507 #define TPD_SEGMENT_EN_SHIFT 4 508 #define TPD_IP_CSUM_MASK 0x0001 509 #define TPD_IP_CSUM_SHIFT 5 510 #define TPD_TCP_CSUM_MASK 0x0001 511 #define TPD_TCP_CSUM_SHIFT 6 512 #define TPD_UDP_CSUM_MASK 0x0001 513 #define TPD_UDP_CSUM_SHIFT 7 514 #define TPD_VL_TAGGED_MASK 0x0001 515 #define TPD_VL_TAGGED_SHIFT 8 516 #define TPD_ETHTYPE_MASK 0x0001 517 #define TPD_ETHTYPE_SHIFT 9 518 #define TPD_IPHL_MASK 0x000F 519 #define TPD_IPHL_SHIFT 10 520 521 /* tpd word 3 bits 14:31 if segment enabled */ 522 #define TPD_TCPHDRLEN_MASK 0x000F 523 #define TPD_TCPHDRLEN_SHIFT 14 524 #define TPD_HDRFLAG_MASK 0x0001 525 #define TPD_HDRFLAG_SHIFT 18 526 #define TPD_MSS_MASK 0x1FFF 527 #define TPD_MSS_SHIFT 19 528 529 /* tpd word 3 bits 16:31 if custom csum enabled */ 530 #define TPD_PLOADOFFSET_MASK 0x00FF 531 #define TPD_PLOADOFFSET_SHIFT 16 532 #define TPD_CCSUMOFFSET_MASK 0x00FF 533 #define TPD_CCSUMOFFSET_SHIFT 24 534 535 struct tx_packet_desc { 536 __le64 buffer_addr; 537 __le32 word2; 538 __le32 word3; 539 }; 540 541 /* DMA Order Settings */ 542 enum atl1_dma_order { 543 atl1_dma_ord_in = 1, 544 atl1_dma_ord_enh = 2, 545 atl1_dma_ord_out = 4 546 }; 547 548 enum atl1_dma_rcb { 549 atl1_rcb_64 = 0, 550 atl1_rcb_128 = 1 551 }; 552 553 enum atl1_dma_req_block { 554 atl1_dma_req_128 = 0, 555 atl1_dma_req_256 = 1, 556 atl1_dma_req_512 = 2, 557 atl1_dma_req_1024 = 3, 558 atl1_dma_req_2048 = 4, 559 atl1_dma_req_4096 = 5 560 }; 561 562 #define ATL1_MAX_INTR 3 563 #define ATL1_MAX_TX_BUF_LEN 0x3000 /* 12288 bytes */ 564 565 #define ATL1_DEFAULT_TPD 256 566 #define ATL1_MAX_TPD 1024 567 #define ATL1_MIN_TPD 64 568 #define ATL1_DEFAULT_RFD 512 569 #define ATL1_MIN_RFD 128 570 #define ATL1_MAX_RFD 2048 571 #define ATL1_REG_COUNT 1538 572 573 #define ATL1_GET_DESC(R, i, type) (&(((type *)((R)->desc))[i])) 574 #define ATL1_RFD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_free_desc) 575 #define ATL1_TPD_DESC(R, i) ATL1_GET_DESC(R, i, struct tx_packet_desc) 576 #define ATL1_RRD_DESC(R, i) ATL1_GET_DESC(R, i, struct rx_return_desc) 577 578 /* 579 * atl1_ring_header represents a single, contiguous block of DMA space 580 * mapped for the three descriptor rings (tpd, rfd, rrd) and the two 581 * message blocks (cmb, smb) described below 582 */ 583 struct atl1_ring_header { 584 void *desc; /* virtual address */ 585 dma_addr_t dma; /* physical address*/ 586 unsigned int size; /* length in bytes */ 587 }; 588 589 /* 590 * atl1_buffer is wrapper around a pointer to a socket buffer 591 * so a DMA handle can be stored along with the skb 592 */ 593 struct atl1_buffer { 594 struct sk_buff *skb; /* socket buffer */ 595 u16 length; /* rx buffer length */ 596 u16 alloced; /* 1 if skb allocated */ 597 dma_addr_t dma; 598 }; 599 600 /* transmit packet descriptor (tpd) ring */ 601 struct atl1_tpd_ring { 602 void *desc; /* descriptor ring virtual address */ 603 dma_addr_t dma; /* descriptor ring physical address */ 604 u16 size; /* descriptor ring length in bytes */ 605 u16 count; /* number of descriptors in the ring */ 606 u16 hw_idx; /* hardware index */ 607 atomic_t next_to_clean; 608 atomic_t next_to_use; 609 struct atl1_buffer *buffer_info; 610 }; 611 612 /* receive free descriptor (rfd) ring */ 613 struct atl1_rfd_ring { 614 void *desc; /* descriptor ring virtual address */ 615 dma_addr_t dma; /* descriptor ring physical address */ 616 u16 size; /* descriptor ring length in bytes */ 617 u16 count; /* number of descriptors in the ring */ 618 atomic_t next_to_use; 619 u16 next_to_clean; 620 struct atl1_buffer *buffer_info; 621 }; 622 623 /* receive return descriptor (rrd) ring */ 624 struct atl1_rrd_ring { 625 void *desc; /* descriptor ring virtual address */ 626 dma_addr_t dma; /* descriptor ring physical address */ 627 unsigned int size; /* descriptor ring length in bytes */ 628 u16 count; /* number of descriptors in the ring */ 629 u16 next_to_use; 630 atomic_t next_to_clean; 631 }; 632 633 /* coalescing message block (cmb) */ 634 struct atl1_cmb { 635 struct coals_msg_block *cmb; 636 dma_addr_t dma; 637 }; 638 639 /* statistics message block (smb) */ 640 struct atl1_smb { 641 struct stats_msg_block *smb; 642 dma_addr_t dma; 643 }; 644 645 /* Statistics counters */ 646 struct atl1_sft_stats { 647 u64 rx_packets; 648 u64 tx_packets; 649 u64 rx_bytes; 650 u64 tx_bytes; 651 u64 multicast; 652 u64 collisions; 653 u64 rx_errors; 654 u64 rx_length_errors; 655 u64 rx_crc_errors; 656 u64 rx_dropped; 657 u64 rx_frame_errors; 658 u64 rx_fifo_errors; 659 u64 rx_missed_errors; 660 u64 tx_errors; 661 u64 tx_fifo_errors; 662 u64 tx_aborted_errors; 663 u64 tx_window_errors; 664 u64 tx_carrier_errors; 665 u64 tx_pause; /* TX pause frames */ 666 u64 excecol; /* TX packets w/ excessive collisions */ 667 u64 deffer; /* TX packets deferred */ 668 u64 scc; /* packets TX after a single collision */ 669 u64 mcc; /* packets TX after multiple collisions */ 670 u64 latecol; /* TX packets w/ late collisions */ 671 u64 tx_underrun; /* TX packets aborted due to TX FIFO underrun 672 * or TRD FIFO underrun */ 673 u64 tx_trunc; /* TX packets truncated due to size > MTU */ 674 u64 rx_pause; /* num Pause packets received. */ 675 u64 rx_rrd_ov; 676 u64 rx_trunc; 677 }; 678 679 /* hardware structure */ 680 struct atl1_hw { 681 u8 __iomem *hw_addr; 682 struct atl1_adapter *back; 683 enum atl1_dma_order dma_ord; 684 enum atl1_dma_rcb rcb_value; 685 enum atl1_dma_req_block dmar_block; 686 enum atl1_dma_req_block dmaw_block; 687 u8 preamble_len; 688 u8 max_retry; 689 u8 jam_ipg; /* IPG to start JAM for collision based flow 690 * control in half-duplex mode. In units of 691 * 8-bit time */ 692 u8 ipgt; /* Desired back to back inter-packet gap. 693 * The default is 96-bit time */ 694 u8 min_ifg; /* Minimum number of IFG to enforce in between 695 * receive frames. Frame gap below such IFP 696 * is dropped */ 697 u8 ipgr1; /* 64bit Carrier-Sense window */ 698 u8 ipgr2; /* 96-bit IPG window */ 699 u8 tpd_burst; /* Number of TPD to prefetch in cache-aligned 700 * burst. Each TPD is 16 bytes long */ 701 u8 rfd_burst; /* Number of RFD to prefetch in cache-aligned 702 * burst. Each RFD is 12 bytes long */ 703 u8 rfd_fetch_gap; 704 u8 rrd_burst; /* Threshold number of RRDs that can be retired 705 * in a burst. Each RRD is 16 bytes long */ 706 u8 tpd_fetch_th; 707 u8 tpd_fetch_gap; 708 u16 tx_jumbo_task_th; 709 u16 txf_burst; /* Number of data bytes to read in a cache- 710 * aligned burst. Each SRAM entry is 8 bytes */ 711 u16 rx_jumbo_th; /* Jumbo packet size for non-VLAN packet. VLAN 712 * packets should add 4 bytes */ 713 u16 rx_jumbo_lkah; 714 u16 rrd_ret_timer; /* RRD retirement timer. Decrement by 1 after 715 * every 512ns passes. */ 716 u16 lcol; /* Collision Window */ 717 718 u16 cmb_tpd; 719 u16 cmb_rrd; 720 u16 cmb_rx_timer; 721 u16 cmb_tx_timer; 722 u32 smb_timer; 723 u16 media_type; 724 u16 autoneg_advertised; 725 726 u16 mii_autoneg_adv_reg; 727 u16 mii_1000t_ctrl_reg; 728 729 u32 max_frame_size; 730 u32 min_frame_size; 731 732 u16 dev_rev; 733 734 /* spi flash */ 735 u8 flash_vendor; 736 737 u8 mac_addr[ETH_ALEN]; 738 u8 perm_mac_addr[ETH_ALEN]; 739 740 bool phy_configured; 741 }; 742 743 struct atl1_adapter { 744 struct net_device *netdev; 745 struct pci_dev *pdev; 746 747 struct atl1_sft_stats soft_stats; 748 u32 rx_buffer_len; 749 u32 wol; 750 u16 link_speed; 751 u16 link_duplex; 752 spinlock_t lock; 753 struct napi_struct napi; 754 struct work_struct reset_dev_task; 755 struct work_struct link_chg_task; 756 757 struct timer_list phy_config_timer; 758 bool phy_timer_pending; 759 760 /* all descriptor rings' memory */ 761 struct atl1_ring_header ring_header; 762 763 /* TX */ 764 struct atl1_tpd_ring tpd_ring; 765 spinlock_t mb_lock; 766 767 /* RX */ 768 struct atl1_rfd_ring rfd_ring; 769 struct atl1_rrd_ring rrd_ring; 770 u64 hw_csum_err; 771 u64 hw_csum_good; 772 u32 msg_enable; 773 u16 imt; /* interrupt moderator timer (2us resolution) */ 774 u16 ict; /* interrupt clear timer (2us resolution */ 775 struct mii_if_info mii; /* MII interface info */ 776 777 /* 778 * Use this value to check is napi handler allowed to 779 * enable ints or not 780 */ 781 bool int_enabled; 782 783 u32 bd_number; /* board number */ 784 bool pci_using_64; 785 struct atl1_hw hw; 786 struct atl1_smb smb; 787 struct atl1_cmb cmb; 788 }; 789 790 #endif /* ATL1_H */ 791
