1 /*
2 * QLogic iSCSI HBA Driver
3 * Copyright (c) 2003-2013 QLogic Corporation
4 *
5 * See LICENSE.qla4xxx for copyright and licensing details.
6 */
7
8 #ifndef __QL4_DEF_H
9 #define __QL4_DEF_H
10
11 #include <linux/kernel.h>
12 #include <linux/init.h>
13 #include <linux/types.h>
14 #include <linux/module.h>
15 #include <linux/list.h>
16 #include <linux/pci.h>
17 #include <linux/dma-mapping.h>
18 #include <linux/sched.h>
19 #include <linux/slab.h>
20 #include <linux/dmapool.h>
21 #include <linux/mempool.h>
22 #include <linux/spinlock.h>
23 #include <linux/workqueue.h>
24 #include <linux/delay.h>
25 #include <linux/interrupt.h>
26 #include <linux/mutex.h>
27 #include <linux/aer.h>
28 #include <linux/bsg-lib.h>
29 #include <linux/vmalloc.h>
30
31 #include <net/tcp.h>
32 #include <scsi/scsi.h>
33 #include <scsi/scsi_host.h>
34 #include <scsi/scsi_device.h>
35 #include <scsi/scsi_cmnd.h>
36 #include <scsi/scsi_transport.h>
37 #include <scsi/scsi_transport_iscsi.h>
38 #include <scsi/scsi_bsg_iscsi.h>
39 #include <scsi/scsi_netlink.h>
40 #include <scsi/libiscsi.h>
41
42 #include "ql4_dbg.h"
43 #include "ql4_nx.h"
44 #include "ql4_fw.h"
45 #include "ql4_nvram.h"
46 #include "ql4_83xx.h"
47
48 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4010
49 #define PCI_DEVICE_ID_QLOGIC_ISP4010 0x4010
50 #endif
51
52 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4022
53 #define PCI_DEVICE_ID_QLOGIC_ISP4022 0x4022
54 #endif
55
56 #ifndef PCI_DEVICE_ID_QLOGIC_ISP4032
57 #define PCI_DEVICE_ID_QLOGIC_ISP4032 0x4032
58 #endif
59
60 #ifndef PCI_DEVICE_ID_QLOGIC_ISP8022
61 #define PCI_DEVICE_ID_QLOGIC_ISP8022 0x8022
62 #endif
63
64 #ifndef PCI_DEVICE_ID_QLOGIC_ISP8324
65 #define PCI_DEVICE_ID_QLOGIC_ISP8324 0x8032
66 #endif
67
68 #ifndef PCI_DEVICE_ID_QLOGIC_ISP8042
69 #define PCI_DEVICE_ID_QLOGIC_ISP8042 0x8042
70 #endif
71
72 #define ISP4XXX_PCI_FN_1 0x1
73 #define ISP4XXX_PCI_FN_2 0x3
74
75 #define QLA_SUCCESS 0
76 #define QLA_ERROR 1
77 #define STATUS(status) status == QLA_ERROR ? "FAILED" : "SUCCEEDED"
78
79 /*
80 * Data bit definitions
81 */
82 #define BIT_0 0x1
83 #define BIT_1 0x2
84 #define BIT_2 0x4
85 #define BIT_3 0x8
86 #define BIT_4 0x10
87 #define BIT_5 0x20
88 #define BIT_6 0x40
89 #define BIT_7 0x80
90 #define BIT_8 0x100
91 #define BIT_9 0x200
92 #define BIT_10 0x400
93 #define BIT_11 0x800
94 #define BIT_12 0x1000
95 #define BIT_13 0x2000
96 #define BIT_14 0x4000
97 #define BIT_15 0x8000
98 #define BIT_16 0x10000
99 #define BIT_17 0x20000
100 #define BIT_18 0x40000
101 #define BIT_19 0x80000
102 #define BIT_20 0x100000
103 #define BIT_21 0x200000
104 #define BIT_22 0x400000
105 #define BIT_23 0x800000
106 #define BIT_24 0x1000000
107 #define BIT_25 0x2000000
108 #define BIT_26 0x4000000
109 #define BIT_27 0x8000000
110 #define BIT_28 0x10000000
111 #define BIT_29 0x20000000
112 #define BIT_30 0x40000000
113 #define BIT_31 0x80000000
114
115 /**
116 * Macros to help code, maintain, etc.
117 **/
118 #define ql4_printk(level, ha, format, arg...) \
119 dev_printk(level , &((ha)->pdev->dev) , format , ## arg)
120
121
122 /*
123 * Host adapter default definitions
124 ***********************************/
125 #define MAX_HBAS 16
126 #define MAX_BUSES 1
127 #define MAX_TARGETS MAX_DEV_DB_ENTRIES
128 #define MAX_LUNS 0xffff
129 #define MAX_AEN_ENTRIES MAX_DEV_DB_ENTRIES
130 #define MAX_DDB_ENTRIES MAX_DEV_DB_ENTRIES
131 #define MAX_PDU_ENTRIES 32
132 #define INVALID_ENTRY 0xFFFF
133 #define MAX_CMDS_TO_RISC 1024
134 #define MAX_SRBS MAX_CMDS_TO_RISC
135 #define MBOX_AEN_REG_COUNT 8
136 #define MAX_INIT_RETRIES 5
137
138 /*
139 * Buffer sizes
140 */
141 #define REQUEST_QUEUE_DEPTH MAX_CMDS_TO_RISC
142 #define RESPONSE_QUEUE_DEPTH 64
143 #define QUEUE_SIZE 64
144 #define DMA_BUFFER_SIZE 512
145 #define IOCB_HIWAT_CUSHION 4
146
147 /*
148 * Misc
149 */
150 #define MAC_ADDR_LEN 6 /* in bytes */
151 #define IP_ADDR_LEN 4 /* in bytes */
152 #define IPv6_ADDR_LEN 16 /* IPv6 address size */
153 #define DRIVER_NAME "qla4xxx"
154
155 #define MAX_LINKED_CMDS_PER_LUN 3
156 #define MAX_REQS_SERVICED_PER_INTR 1
157
158 #define ISCSI_IPADDR_SIZE 4 /* IP address size */
159 #define ISCSI_ALIAS_SIZE 32 /* ISCSI Alias name size */
160 #define ISCSI_NAME_SIZE 0xE0 /* ISCSI Name size */
161
162 #define QL4_SESS_RECOVERY_TMO 120 /* iSCSI session */
163 /* recovery timeout */
164
165 #define LSDW(x) ((u32)((u64)(x)))
166 #define MSDW(x) ((u32)((((u64)(x)) >> 16) >> 16))
167
168 #define DEV_DB_NON_PERSISTENT 0
169 #define DEV_DB_PERSISTENT 1
170
171 #define QL4_ISP_REG_DISCONNECT 0xffffffffU
172
173 #define COPY_ISID(dst_isid, src_isid) { \
174 int i, j; \
175 for (i = 0, j = ISID_SIZE - 1; i < ISID_SIZE;) \
176 dst_isid[i++] = src_isid[j--]; \
177 }
178
179 #define SET_BITVAL(o, n, v) { \
180 if (o) \
181 n |= v; \
182 else \
183 n &= ~v; \
184 }
185
186 #define OP_STATE(o, f, p) { \
187 p = (o & f) ? "enable" : "disable"; \
188 }
189
190 /*
191 * Retry & Timeout Values
192 */
193 #define MBOX_TOV 60
194 #define SOFT_RESET_TOV 30
195 #define RESET_INTR_TOV 3
196 #define SEMAPHORE_TOV 10
197 #define ADAPTER_INIT_TOV 30
198 #define ADAPTER_RESET_TOV 180
199 #define EXTEND_CMD_TOV 60
200 #define WAIT_CMD_TOV 5
201 #define EH_WAIT_CMD_TOV 120
202 #define FIRMWARE_UP_TOV 60
203 #define RESET_FIRMWARE_TOV 30
204 #define LOGOUT_TOV 10
205 #define IOCB_TOV_MARGIN 10
206 #define RELOGIN_TOV 18
207 #define ISNS_DEREG_TOV 5
208 #define HBA_ONLINE_TOV 30
209 #define DISABLE_ACB_TOV 30
210 #define IP_CONFIG_TOV 30
211 #define LOGIN_TOV 12
212 #define BOOT_LOGIN_RESP_TOV 60
213
214 #define MAX_RESET_HA_RETRIES 2
215 #define FW_ALIVE_WAIT_TOV 3
216 #define IDC_EXTEND_TOV 8
217 #define IDC_COMP_TOV 5
218 #define LINK_UP_COMP_TOV 30
219
220 #define CMD_SP(Cmnd) ((Cmnd)->SCp.ptr)
221
222 /*
223 * SCSI Request Block structure (srb) that is placed
224 * on cmd->SCp location of every I/O [We have 22 bytes available]
225 */
226 struct srb {
227 struct list_head list; /* (8) */
228 struct scsi_qla_host *ha; /* HA the SP is queued on */
229 struct ddb_entry *ddb;
230 uint16_t flags; /* (1) Status flags. */
231
232 #define SRB_DMA_VALID BIT_3 /* DMA Buffer mapped. */
233 #define SRB_GOT_SENSE BIT_4 /* sense data received. */
234 uint8_t state; /* (1) Status flags. */
235
236 #define SRB_NO_QUEUE_STATE 0 /* Request is in between states */
237 #define SRB_FREE_STATE 1
238 #define SRB_ACTIVE_STATE 3
239 #define SRB_ACTIVE_TIMEOUT_STATE 4
240 #define SRB_SUSPENDED_STATE 7 /* Request in suspended state */
241
242 struct scsi_cmnd *cmd; /* (4) SCSI command block */
243 dma_addr_t dma_handle; /* (4) for unmap of single transfers */
244 struct kref srb_ref; /* reference count for this srb */
245 uint8_t err_id; /* error id */
246 #define SRB_ERR_PORT 1 /* Request failed because "port down" */
247 #define SRB_ERR_LOOP 2 /* Request failed because "loop down" */
248 #define SRB_ERR_DEVICE 3 /* Request failed because "device error" */
249 #define SRB_ERR_OTHER 4
250
251 uint16_t reserved;
252 uint16_t iocb_tov;
253 uint16_t iocb_cnt; /* Number of used iocbs */
254 uint16_t cc_stat;
255
256 /* Used for extended sense / status continuation */
257 uint8_t *req_sense_ptr;
258 uint16_t req_sense_len;
259 uint16_t reserved2;
260 };
261
262 /* Mailbox request block structure */
263 struct mrb {
264 struct scsi_qla_host *ha;
265 struct mbox_cmd_iocb *mbox;
266 uint32_t mbox_cmd;
267 uint16_t iocb_cnt; /* Number of used iocbs */
268 uint32_t pid;
269 };
270
271 /*
272 * Asynchronous Event Queue structure
273 */
274 struct aen {
275 uint32_t mbox_sts[MBOX_AEN_REG_COUNT];
276 };
277
278 struct ql4_aen_log {
279 int count;
280 struct aen entry[MAX_AEN_ENTRIES];
281 };
282
283 /*
284 * Device Database (DDB) structure
285 */
286 struct ddb_entry {
287 struct scsi_qla_host *ha;
288 struct iscsi_cls_session *sess;
289 struct iscsi_cls_conn *conn;
290
291 uint16_t fw_ddb_index; /* DDB firmware index */
292 uint32_t fw_ddb_device_state; /* F/W Device State -- see ql4_fw.h */
293 uint16_t ddb_type;
294 #define FLASH_DDB 0x01
295
296 struct dev_db_entry fw_ddb_entry;
297 int (*unblock_sess)(struct iscsi_cls_session *cls_session);
298 int (*ddb_change)(struct scsi_qla_host *ha, uint32_t fw_ddb_index,
299 struct ddb_entry *ddb_entry, uint32_t state);
300
301 /* Driver Re-login */
302 unsigned long flags; /* DDB Flags */
303 #define DDB_CONN_CLOSE_FAILURE 0 /* 0x00000001 */
304
305 uint16_t default_relogin_timeout; /* Max time to wait for
306 * relogin to complete */
307 atomic_t retry_relogin_timer; /* Min Time between relogins
308 * (4000 only) */
309 atomic_t relogin_timer; /* Max Time to wait for
310 * relogin to complete */
311 atomic_t relogin_retry_count; /* Num of times relogin has been
312 * retried */
313 uint32_t default_time2wait; /* Default Min time between
314 * relogins (+aens) */
315 uint16_t chap_tbl_idx;
316 };
317
318 struct qla_ddb_index {
319 struct list_head list;
320 uint16_t fw_ddb_idx;
321 uint16_t flash_ddb_idx;
322 struct dev_db_entry fw_ddb;
323 uint8_t flash_isid[6];
324 };
325
326 #define DDB_IPADDR_LEN 64
327
328 struct ql4_tuple_ddb {
329 int port;
330 int tpgt;
331 char ip_addr[DDB_IPADDR_LEN];
332 char iscsi_name[ISCSI_NAME_SIZE];
333 uint16_t options;
334 #define DDB_OPT_IPV6 0x0e0e
335 #define DDB_OPT_IPV4 0x0f0f
336 uint8_t isid[6];
337 };
338
339 /*
340 * DDB states.
341 */
342 #define DDB_STATE_DEAD 0 /* We can no longer talk to
343 * this device */
344 #define DDB_STATE_ONLINE 1 /* Device ready to accept
345 * commands */
346 #define DDB_STATE_MISSING 2 /* Device logged off, trying
347 * to re-login */
348
349 /*
350 * DDB flags.
351 */
352 #define DF_RELOGIN 0 /* Relogin to device */
353 #define DF_BOOT_TGT 1 /* Boot target entry */
354 #define DF_ISNS_DISCOVERED 2 /* Device was discovered via iSNS */
355 #define DF_FO_MASKED 3
356 #define DF_DISABLE_RELOGIN 4 /* Disable relogin to device */
357
358 enum qla4_work_type {
359 QLA4_EVENT_AEN,
360 QLA4_EVENT_PING_STATUS,
361 };
362
363 struct qla4_work_evt {
364 struct list_head list;
365 enum qla4_work_type type;
366 union {
367 struct {
368 enum iscsi_host_event_code code;
369 uint32_t data_size;
370 uint8_t data[0];
371 } aen;
372 struct {
373 uint32_t status;
374 uint32_t pid;
375 uint32_t data_size;
376 uint8_t data[0];
377 } ping;
378 } u;
379 };
380
381 struct ql82xx_hw_data {
382 /* Offsets for flash/nvram access (set to ~0 if not used). */
383 uint32_t flash_conf_off;
384 uint32_t flash_data_off;
385
386 uint32_t fdt_wrt_disable;
387 uint32_t fdt_erase_cmd;
388 uint32_t fdt_block_size;
389 uint32_t fdt_unprotect_sec_cmd;
390 uint32_t fdt_protect_sec_cmd;
391
392 uint32_t flt_region_flt;
393 uint32_t flt_region_fdt;
394 uint32_t flt_region_boot;
395 uint32_t flt_region_bootload;
396 uint32_t flt_region_fw;
397
398 uint32_t flt_iscsi_param;
399 uint32_t flt_region_chap;
400 uint32_t flt_chap_size;
401 uint32_t flt_region_ddb;
402 uint32_t flt_ddb_size;
403 };
404
405 struct qla4_8xxx_legacy_intr_set {
406 uint32_t int_vec_bit;
407 uint32_t tgt_status_reg;
408 uint32_t tgt_mask_reg;
409 uint32_t pci_int_reg;
410 };
411
412 /* MSI-X Support */
413 #define QLA_MSIX_ENTRIES 2
414
415 /*
416 * ISP Operations
417 */
418 struct isp_operations {
419 int (*iospace_config) (struct scsi_qla_host *ha);
420 void (*pci_config) (struct scsi_qla_host *);
421 void (*disable_intrs) (struct scsi_qla_host *);
422 void (*enable_intrs) (struct scsi_qla_host *);
423 int (*start_firmware) (struct scsi_qla_host *);
424 int (*restart_firmware) (struct scsi_qla_host *);
425 irqreturn_t (*intr_handler) (int , void *);
426 void (*interrupt_service_routine) (struct scsi_qla_host *, uint32_t);
427 int (*need_reset) (struct scsi_qla_host *);
428 int (*reset_chip) (struct scsi_qla_host *);
429 int (*reset_firmware) (struct scsi_qla_host *);
430 void (*queue_iocb) (struct scsi_qla_host *);
431 void (*complete_iocb) (struct scsi_qla_host *);
432 uint16_t (*rd_shdw_req_q_out) (struct scsi_qla_host *);
433 uint16_t (*rd_shdw_rsp_q_in) (struct scsi_qla_host *);
434 int (*get_sys_info) (struct scsi_qla_host *);
435 uint32_t (*rd_reg_direct) (struct scsi_qla_host *, ulong);
436 void (*wr_reg_direct) (struct scsi_qla_host *, ulong, uint32_t);
437 int (*rd_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t *);
438 int (*wr_reg_indirect) (struct scsi_qla_host *, uint32_t, uint32_t);
439 int (*idc_lock) (struct scsi_qla_host *);
440 void (*idc_unlock) (struct scsi_qla_host *);
441 void (*rom_lock_recovery) (struct scsi_qla_host *);
442 void (*queue_mailbox_command) (struct scsi_qla_host *, uint32_t *, int);
443 void (*process_mailbox_interrupt) (struct scsi_qla_host *, int);
444 };
445
446 struct ql4_mdump_size_table {
447 uint32_t size;
448 uint32_t size_cmask_02;
449 uint32_t size_cmask_04;
450 uint32_t size_cmask_08;
451 uint32_t size_cmask_10;
452 uint32_t size_cmask_FF;
453 uint32_t version;
454 };
455
456 /*qla4xxx ipaddress configuration details */
457 struct ipaddress_config {
458 uint16_t ipv4_options;
459 uint16_t tcp_options;
460 uint16_t ipv4_vlan_tag;
461 uint8_t ipv4_addr_state;
462 uint8_t ip_address[IP_ADDR_LEN];
463 uint8_t subnet_mask[IP_ADDR_LEN];
464 uint8_t gateway[IP_ADDR_LEN];
465 uint32_t ipv6_options;
466 uint32_t ipv6_addl_options;
467 uint8_t ipv6_link_local_state;
468 uint8_t ipv6_addr0_state;
469 uint8_t ipv6_addr1_state;
470 uint8_t ipv6_default_router_state;
471 uint16_t ipv6_vlan_tag;
472 struct in6_addr ipv6_link_local_addr;
473 struct in6_addr ipv6_addr0;
474 struct in6_addr ipv6_addr1;
475 struct in6_addr ipv6_default_router_addr;
476 uint16_t eth_mtu_size;
477 uint16_t ipv4_port;
478 uint16_t ipv6_port;
479 uint8_t control;
480 uint16_t ipv6_tcp_options;
481 uint8_t tcp_wsf;
482 uint8_t ipv6_tcp_wsf;
483 uint8_t ipv4_tos;
484 uint8_t ipv4_cache_id;
485 uint8_t ipv6_cache_id;
486 uint8_t ipv4_alt_cid_len;
487 uint8_t ipv4_alt_cid[11];
488 uint8_t ipv4_vid_len;
489 uint8_t ipv4_vid[11];
490 uint8_t ipv4_ttl;
491 uint16_t ipv6_flow_lbl;
492 uint8_t ipv6_traffic_class;
493 uint8_t ipv6_hop_limit;
494 uint32_t ipv6_nd_reach_time;
495 uint32_t ipv6_nd_rexmit_timer;
496 uint32_t ipv6_nd_stale_timeout;
497 uint8_t ipv6_dup_addr_detect_count;
498 uint32_t ipv6_gw_advrt_mtu;
499 uint16_t def_timeout;
500 uint8_t abort_timer;
501 uint16_t iscsi_options;
502 uint16_t iscsi_max_pdu_size;
503 uint16_t iscsi_first_burst_len;
504 uint16_t iscsi_max_outstnd_r2t;
505 uint16_t iscsi_max_burst_len;
506 uint8_t iscsi_name[224];
507 };
508
509 #define QL4_CHAP_MAX_NAME_LEN 256
510 #define QL4_CHAP_MAX_SECRET_LEN 100
511 #define LOCAL_CHAP 0
512 #define BIDI_CHAP 1
513
514 struct ql4_chap_format {
515 u8 intr_chap_name[QL4_CHAP_MAX_NAME_LEN];
516 u8 intr_secret[QL4_CHAP_MAX_SECRET_LEN];
517 u8 target_chap_name[QL4_CHAP_MAX_NAME_LEN];
518 u8 target_secret[QL4_CHAP_MAX_SECRET_LEN];
519 u16 intr_chap_name_length;
520 u16 intr_secret_length;
521 u16 target_chap_name_length;
522 u16 target_secret_length;
523 };
524
525 struct ip_address_format {
526 u8 ip_type;
527 u8 ip_address[16];
528 };
529
530 struct ql4_conn_info {
531 u16 dest_port;
532 struct ip_address_format dest_ipaddr;
533 struct ql4_chap_format chap;
534 };
535
536 struct ql4_boot_session_info {
537 u8 target_name[224];
538 struct ql4_conn_info conn_list[1];
539 };
540
541 struct ql4_boot_tgt_info {
542 struct ql4_boot_session_info boot_pri_sess;
543 struct ql4_boot_session_info boot_sec_sess;
544 };
545
546 /*
547 * Linux Host Adapter structure
548 */
549 struct scsi_qla_host {
550 /* Linux adapter configuration data */
551 unsigned long flags;
552
553 #define AF_ONLINE 0 /* 0x00000001 */
554 #define AF_INIT_DONE 1 /* 0x00000002 */
555 #define AF_MBOX_COMMAND 2 /* 0x00000004 */
556 #define AF_MBOX_COMMAND_DONE 3 /* 0x00000008 */
557 #define AF_ST_DISCOVERY_IN_PROGRESS 4 /* 0x00000010 */
558 #define AF_INTERRUPTS_ON 6 /* 0x00000040 */
559 #define AF_GET_CRASH_RECORD 7 /* 0x00000080 */
560 #define AF_LINK_UP 8 /* 0x00000100 */
561 #define AF_LOOPBACK 9 /* 0x00000200 */
562 #define AF_IRQ_ATTACHED 10 /* 0x00000400 */
563 #define AF_DISABLE_ACB_COMPLETE 11 /* 0x00000800 */
564 #define AF_HA_REMOVAL 12 /* 0x00001000 */
565 #define AF_MBOX_COMMAND_NOPOLL 18 /* 0x00040000 */
566 #define AF_FW_RECOVERY 19 /* 0x00080000 */
567 #define AF_EEH_BUSY 20 /* 0x00100000 */
568 #define AF_PCI_CHANNEL_IO_PERM_FAILURE 21 /* 0x00200000 */
569 #define AF_BUILD_DDB_LIST 22 /* 0x00400000 */
570 #define AF_82XX_FW_DUMPED 24 /* 0x01000000 */
571 #define AF_8XXX_RST_OWNER 25 /* 0x02000000 */
572 #define AF_82XX_DUMP_READING 26 /* 0x04000000 */
573 #define AF_83XX_IOCB_INTR_ON 28 /* 0x10000000 */
574 #define AF_83XX_MBOX_INTR_ON 29 /* 0x20000000 */
575
576 unsigned long dpc_flags;
577
578 #define DPC_RESET_HA 1 /* 0x00000002 */
579 #define DPC_RETRY_RESET_HA 2 /* 0x00000004 */
580 #define DPC_RELOGIN_DEVICE 3 /* 0x00000008 */
581 #define DPC_RESET_HA_FW_CONTEXT 4 /* 0x00000010 */
582 #define DPC_RESET_HA_INTR 5 /* 0x00000020 */
583 #define DPC_ISNS_RESTART 7 /* 0x00000080 */
584 #define DPC_AEN 9 /* 0x00000200 */
585 #define DPC_GET_DHCP_IP_ADDR 15 /* 0x00008000 */
586 #define DPC_LINK_CHANGED 18 /* 0x00040000 */
587 #define DPC_RESET_ACTIVE 20 /* 0x00100000 */
588 #define DPC_HA_UNRECOVERABLE 21 /* 0x00200000 ISP-82xx only*/
589 #define DPC_HA_NEED_QUIESCENT 22 /* 0x00400000 ISP-82xx only*/
590 #define DPC_POST_IDC_ACK 23 /* 0x00800000 */
591 #define DPC_RESTORE_ACB 24 /* 0x01000000 */
592 #define DPC_SYSFS_DDB_EXPORT 25 /* 0x02000000 */
593
594 struct Scsi_Host *host; /* pointer to host data */
595 uint32_t tot_ddbs;
596
597 uint16_t iocb_cnt;
598 uint16_t iocb_hiwat;
599
600 /* SRB cache. */
601 #define SRB_MIN_REQ 128
602 mempool_t *srb_mempool;
603
604 /* pci information */
605 struct pci_dev *pdev;
606
607 struct isp_reg __iomem *reg; /* Base I/O address */
608 unsigned long pio_address;
609 unsigned long pio_length;
610 #define MIN_IOBASE_LEN 0x100
611
612 uint16_t req_q_count;
613
614 unsigned long host_no;
615
616 /* NVRAM registers */
617 struct eeprom_data *nvram;
618 spinlock_t hardware_lock ____cacheline_aligned;
619 uint32_t eeprom_cmd_data;
620
621 /* Counters for general statistics */
622 uint64_t isr_count;
623 uint64_t adapter_error_count;
624 uint64_t device_error_count;
625 uint64_t total_io_count;
626 uint64_t total_mbytes_xferred;
627 uint64_t link_failure_count;
628 uint64_t invalid_crc_count;
629 uint32_t bytes_xfered;
630 uint32_t spurious_int_count;
631 uint32_t aborted_io_count;
632 uint32_t io_timeout_count;
633 uint32_t mailbox_timeout_count;
634 uint32_t seconds_since_last_intr;
635 uint32_t seconds_since_last_heartbeat;
636 uint32_t mac_index;
637
638 /* Info Needed for Management App */
639 /* --- From GetFwVersion --- */
640 uint32_t firmware_version[2];
641 uint32_t patch_number;
642 uint32_t build_number;
643 uint32_t board_id;
644
645 /* --- From Init_FW --- */
646 /* init_cb_t *init_cb; */
647 uint16_t firmware_options;
648 uint8_t alias[32];
649 uint8_t name_string[256];
650 uint8_t heartbeat_interval;
651
652 /* --- From FlashSysInfo --- */
653 uint8_t my_mac[MAC_ADDR_LEN];
654 uint8_t serial_number[16];
655 uint16_t port_num;
656 /* --- From GetFwState --- */
657 uint32_t firmware_state;
658 uint32_t addl_fw_state;
659
660 /* Linux kernel thread */
661 struct workqueue_struct *dpc_thread;
662 struct work_struct dpc_work;
663
664 /* Linux timer thread */
665 struct timer_list timer;
666 uint32_t timer_active;
667
668 /* Recovery Timers */
669 atomic_t check_relogin_timeouts;
670 uint32_t retry_reset_ha_cnt;
671 uint32_t isp_reset_timer; /* reset test timer */
672 uint32_t nic_reset_timer; /* simulated nic reset test timer */
673 int eh_start;
674 struct list_head free_srb_q;
675 uint16_t free_srb_q_count;
676 uint16_t num_srbs_allocated;
677
678 /* DMA Memory Block */
679 void *queues;
680 dma_addr_t queues_dma;
681 unsigned long queues_len;
682
683 #define MEM_ALIGN_VALUE \
684 ((max(REQUEST_QUEUE_DEPTH, RESPONSE_QUEUE_DEPTH)) * \
685 sizeof(struct queue_entry))
686 /* request and response queue variables */
687 dma_addr_t request_dma;
688 struct queue_entry *request_ring;
689 struct queue_entry *request_ptr;
690 dma_addr_t response_dma;
691 struct queue_entry *response_ring;
692 struct queue_entry *response_ptr;
693 dma_addr_t shadow_regs_dma;
694 struct shadow_regs *shadow_regs;
695 uint16_t request_in; /* Current indexes. */
696 uint16_t request_out;
697 uint16_t response_in;
698 uint16_t response_out;
699
700 /* aen queue variables */
701 uint16_t aen_q_count; /* Number of available aen_q entries */
702 uint16_t aen_in; /* Current indexes */
703 uint16_t aen_out;
704 struct aen aen_q[MAX_AEN_ENTRIES];
705
706 struct ql4_aen_log aen_log;/* tracks all aens */
707
708 /* This mutex protects several threads to do mailbox commands
709 * concurrently.
710 */
711 struct mutex mbox_sem;
712
713 /* temporary mailbox status registers */
714 volatile uint8_t mbox_status_count;
715 volatile uint32_t mbox_status[MBOX_REG_COUNT];
716
717 /* FW ddb index map */
718 struct ddb_entry *fw_ddb_index_map[MAX_DDB_ENTRIES];
719
720 /* Saved srb for status continuation entry processing */
721 struct srb *status_srb;
722
723 uint8_t acb_version;
724
725 /* qla82xx specific fields */
726 struct device_reg_82xx __iomem *qla4_82xx_reg; /* Base I/O address */
727 unsigned long nx_pcibase; /* Base I/O address */
728 uint8_t *nx_db_rd_ptr; /* Doorbell read pointer */
729 unsigned long nx_db_wr_ptr; /* Door bell write pointer */
730 unsigned long first_page_group_start;
731 unsigned long first_page_group_end;
732
733 uint32_t crb_win;
734 uint32_t curr_window;
735 uint32_t ddr_mn_window;
736 unsigned long mn_win_crb;
737 unsigned long ms_win_crb;
738 int qdr_sn_window;
739 rwlock_t hw_lock;
740 uint16_t func_num;
741 int link_width;
742
743 struct qla4_8xxx_legacy_intr_set nx_legacy_intr;
744 u32 nx_crb_mask;
745
746 uint8_t revision_id;
747 uint32_t fw_heartbeat_counter;
748
749 struct isp_operations *isp_ops;
750 struct ql82xx_hw_data hw;
751
752 uint32_t nx_dev_init_timeout;
753 uint32_t nx_reset_timeout;
754 void *fw_dump;
755 uint32_t fw_dump_size;
756 uint32_t fw_dump_capture_mask;
757 void *fw_dump_tmplt_hdr;
758 uint32_t fw_dump_tmplt_size;
759 uint32_t fw_dump_skip_size;
760
761 struct completion mbx_intr_comp;
762
763 struct ipaddress_config ip_config;
764 struct iscsi_iface *iface_ipv4;
765 struct iscsi_iface *iface_ipv6_0;
766 struct iscsi_iface *iface_ipv6_1;
767
768 /* --- From About Firmware --- */
769 struct about_fw_info fw_info;
770 uint32_t fw_uptime_secs; /* seconds elapsed since fw bootup */
771 uint32_t fw_uptime_msecs; /* milliseconds beyond elapsed seconds */
772 uint16_t def_timeout; /* Default login timeout */
773
774 uint32_t flash_state;
775 #define QLFLASH_WAITING 0
776 #define QLFLASH_READING 1
777 #define QLFLASH_WRITING 2
778 struct dma_pool *chap_dma_pool;
779 uint8_t *chap_list; /* CHAP table cache */
780 struct mutex chap_sem;
781
782 #define CHAP_DMA_BLOCK_SIZE 512
783 struct workqueue_struct *task_wq;
784 unsigned long ddb_idx_map[MAX_DDB_ENTRIES / BITS_PER_LONG];
785 #define SYSFS_FLAG_FW_SEL_BOOT 2
786 struct iscsi_boot_kset *boot_kset;
787 struct ql4_boot_tgt_info boot_tgt;
788 uint16_t phy_port_num;
789 uint16_t phy_port_cnt;
790 uint16_t iscsi_pci_func_cnt;
791 uint8_t model_name[16];
792 struct completion disable_acb_comp;
793 struct dma_pool *fw_ddb_dma_pool;
794 #define DDB_DMA_BLOCK_SIZE 512
795 uint16_t pri_ddb_idx;
796 uint16_t sec_ddb_idx;
797 int is_reset;
798 uint16_t temperature;
799
800 /* event work list */
801 struct list_head work_list;
802 spinlock_t work_lock;
803
804 /* mbox iocb */
805 #define MAX_MRB 128
806 struct mrb *active_mrb_array[MAX_MRB];
807 uint32_t mrb_index;
808
809 uint32_t *reg_tbl;
810 struct qla4_83xx_reset_template reset_tmplt;
811 struct device_reg_83xx __iomem *qla4_83xx_reg; /* Base I/O address
812 for ISP8324 and
813 and ISP8042 */
814 uint32_t pf_bit;
815 struct qla4_83xx_idc_information idc_info;
816 struct addr_ctrl_blk *saved_acb;
817 int notify_idc_comp;
818 int notify_link_up_comp;
819 int idc_extend_tmo;
820 struct completion idc_comp;
821 struct completion link_up_comp;
822 };
823
824 struct ql4_task_data {
825 struct scsi_qla_host *ha;
826 uint8_t iocb_req_cnt;
827 dma_addr_t data_dma;
828 void *req_buffer;
829 dma_addr_t req_dma;
830 uint32_t req_len;
831 void *resp_buffer;
832 dma_addr_t resp_dma;
833 uint32_t resp_len;
834 struct iscsi_task *task;
835 struct passthru_status sts;
836 struct work_struct task_work;
837 };
838
839 struct qla_endpoint {
840 struct Scsi_Host *host;
841 struct sockaddr_storage dst_addr;
842 };
843
844 struct qla_conn {
845 struct qla_endpoint *qla_ep;
846 };
847
is_ipv4_enabled(struct scsi_qla_host * ha)848 static inline int is_ipv4_enabled(struct scsi_qla_host *ha)
849 {
850 return ((ha->ip_config.ipv4_options & IPOPT_IPV4_PROTOCOL_ENABLE) != 0);
851 }
852
is_ipv6_enabled(struct scsi_qla_host * ha)853 static inline int is_ipv6_enabled(struct scsi_qla_host *ha)
854 {
855 return ((ha->ip_config.ipv6_options &
856 IPV6_OPT_IPV6_PROTOCOL_ENABLE) != 0);
857 }
858
is_qla4010(struct scsi_qla_host * ha)859 static inline int is_qla4010(struct scsi_qla_host *ha)
860 {
861 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4010;
862 }
863
is_qla4022(struct scsi_qla_host * ha)864 static inline int is_qla4022(struct scsi_qla_host *ha)
865 {
866 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4022;
867 }
868
is_qla4032(struct scsi_qla_host * ha)869 static inline int is_qla4032(struct scsi_qla_host *ha)
870 {
871 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP4032;
872 }
873
is_qla40XX(struct scsi_qla_host * ha)874 static inline int is_qla40XX(struct scsi_qla_host *ha)
875 {
876 return is_qla4032(ha) || is_qla4022(ha) || is_qla4010(ha);
877 }
878
is_qla8022(struct scsi_qla_host * ha)879 static inline int is_qla8022(struct scsi_qla_host *ha)
880 {
881 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022;
882 }
883
is_qla8032(struct scsi_qla_host * ha)884 static inline int is_qla8032(struct scsi_qla_host *ha)
885 {
886 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324;
887 }
888
is_qla8042(struct scsi_qla_host * ha)889 static inline int is_qla8042(struct scsi_qla_host *ha)
890 {
891 return ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042;
892 }
893
is_qla80XX(struct scsi_qla_host * ha)894 static inline int is_qla80XX(struct scsi_qla_host *ha)
895 {
896 return is_qla8022(ha) || is_qla8032(ha) || is_qla8042(ha);
897 }
898
is_aer_supported(struct scsi_qla_host * ha)899 static inline int is_aer_supported(struct scsi_qla_host *ha)
900 {
901 return ((ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8022) ||
902 (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8324) ||
903 (ha->pdev->device == PCI_DEVICE_ID_QLOGIC_ISP8042));
904 }
905
adapter_up(struct scsi_qla_host * ha)906 static inline int adapter_up(struct scsi_qla_host *ha)
907 {
908 return (test_bit(AF_ONLINE, &ha->flags) != 0) &&
909 (test_bit(AF_LINK_UP, &ha->flags) != 0) &&
910 (!test_bit(AF_LOOPBACK, &ha->flags));
911 }
912
to_qla_host(struct Scsi_Host * shost)913 static inline struct scsi_qla_host* to_qla_host(struct Scsi_Host *shost)
914 {
915 return (struct scsi_qla_host *)iscsi_host_priv(shost);
916 }
917
isp_semaphore(struct scsi_qla_host * ha)918 static inline void __iomem* isp_semaphore(struct scsi_qla_host *ha)
919 {
920 return (is_qla4010(ha) ?
921 &ha->reg->u1.isp4010.nvram :
922 &ha->reg->u1.isp4022.semaphore);
923 }
924
isp_nvram(struct scsi_qla_host * ha)925 static inline void __iomem* isp_nvram(struct scsi_qla_host *ha)
926 {
927 return (is_qla4010(ha) ?
928 &ha->reg->u1.isp4010.nvram :
929 &ha->reg->u1.isp4022.nvram);
930 }
931
isp_ext_hw_conf(struct scsi_qla_host * ha)932 static inline void __iomem* isp_ext_hw_conf(struct scsi_qla_host *ha)
933 {
934 return (is_qla4010(ha) ?
935 &ha->reg->u2.isp4010.ext_hw_conf :
936 &ha->reg->u2.isp4022.p0.ext_hw_conf);
937 }
938
isp_port_status(struct scsi_qla_host * ha)939 static inline void __iomem* isp_port_status(struct scsi_qla_host *ha)
940 {
941 return (is_qla4010(ha) ?
942 &ha->reg->u2.isp4010.port_status :
943 &ha->reg->u2.isp4022.p0.port_status);
944 }
945
isp_port_ctrl(struct scsi_qla_host * ha)946 static inline void __iomem* isp_port_ctrl(struct scsi_qla_host *ha)
947 {
948 return (is_qla4010(ha) ?
949 &ha->reg->u2.isp4010.port_ctrl :
950 &ha->reg->u2.isp4022.p0.port_ctrl);
951 }
952
isp_port_error_status(struct scsi_qla_host * ha)953 static inline void __iomem* isp_port_error_status(struct scsi_qla_host *ha)
954 {
955 return (is_qla4010(ha) ?
956 &ha->reg->u2.isp4010.port_err_status :
957 &ha->reg->u2.isp4022.p0.port_err_status);
958 }
959
isp_gp_out(struct scsi_qla_host * ha)960 static inline void __iomem * isp_gp_out(struct scsi_qla_host *ha)
961 {
962 return (is_qla4010(ha) ?
963 &ha->reg->u2.isp4010.gp_out :
964 &ha->reg->u2.isp4022.p0.gp_out);
965 }
966
eeprom_ext_hw_conf_offset(struct scsi_qla_host * ha)967 static inline int eeprom_ext_hw_conf_offset(struct scsi_qla_host *ha)
968 {
969 return (is_qla4010(ha) ?
970 offsetof(struct eeprom_data, isp4010.ext_hw_conf) / 2 :
971 offsetof(struct eeprom_data, isp4022.ext_hw_conf) / 2);
972 }
973
974 int ql4xxx_sem_spinlock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
975 void ql4xxx_sem_unlock(struct scsi_qla_host * ha, u32 sem_mask);
976 int ql4xxx_sem_lock(struct scsi_qla_host * ha, u32 sem_mask, u32 sem_bits);
977
ql4xxx_lock_flash(struct scsi_qla_host * a)978 static inline int ql4xxx_lock_flash(struct scsi_qla_host *a)
979 {
980 if (is_qla4010(a))
981 return ql4xxx_sem_spinlock(a, QL4010_FLASH_SEM_MASK,
982 QL4010_FLASH_SEM_BITS);
983 else
984 return ql4xxx_sem_spinlock(a, QL4022_FLASH_SEM_MASK,
985 (QL4022_RESOURCE_BITS_BASE_CODE |
986 (a->mac_index)) << 13);
987 }
988
ql4xxx_unlock_flash(struct scsi_qla_host * a)989 static inline void ql4xxx_unlock_flash(struct scsi_qla_host *a)
990 {
991 if (is_qla4010(a))
992 ql4xxx_sem_unlock(a, QL4010_FLASH_SEM_MASK);
993 else
994 ql4xxx_sem_unlock(a, QL4022_FLASH_SEM_MASK);
995 }
996
ql4xxx_lock_nvram(struct scsi_qla_host * a)997 static inline int ql4xxx_lock_nvram(struct scsi_qla_host *a)
998 {
999 if (is_qla4010(a))
1000 return ql4xxx_sem_spinlock(a, QL4010_NVRAM_SEM_MASK,
1001 QL4010_NVRAM_SEM_BITS);
1002 else
1003 return ql4xxx_sem_spinlock(a, QL4022_NVRAM_SEM_MASK,
1004 (QL4022_RESOURCE_BITS_BASE_CODE |
1005 (a->mac_index)) << 10);
1006 }
1007
ql4xxx_unlock_nvram(struct scsi_qla_host * a)1008 static inline void ql4xxx_unlock_nvram(struct scsi_qla_host *a)
1009 {
1010 if (is_qla4010(a))
1011 ql4xxx_sem_unlock(a, QL4010_NVRAM_SEM_MASK);
1012 else
1013 ql4xxx_sem_unlock(a, QL4022_NVRAM_SEM_MASK);
1014 }
1015
ql4xxx_lock_drvr(struct scsi_qla_host * a)1016 static inline int ql4xxx_lock_drvr(struct scsi_qla_host *a)
1017 {
1018 if (is_qla4010(a))
1019 return ql4xxx_sem_lock(a, QL4010_DRVR_SEM_MASK,
1020 QL4010_DRVR_SEM_BITS);
1021 else
1022 return ql4xxx_sem_lock(a, QL4022_DRVR_SEM_MASK,
1023 (QL4022_RESOURCE_BITS_BASE_CODE |
1024 (a->mac_index)) << 1);
1025 }
1026
ql4xxx_unlock_drvr(struct scsi_qla_host * a)1027 static inline void ql4xxx_unlock_drvr(struct scsi_qla_host *a)
1028 {
1029 if (is_qla4010(a))
1030 ql4xxx_sem_unlock(a, QL4010_DRVR_SEM_MASK);
1031 else
1032 ql4xxx_sem_unlock(a, QL4022_DRVR_SEM_MASK);
1033 }
1034
ql4xxx_reset_active(struct scsi_qla_host * ha)1035 static inline int ql4xxx_reset_active(struct scsi_qla_host *ha)
1036 {
1037 return test_bit(DPC_RESET_ACTIVE, &ha->dpc_flags) ||
1038 test_bit(DPC_RESET_HA, &ha->dpc_flags) ||
1039 test_bit(DPC_RETRY_RESET_HA, &ha->dpc_flags) ||
1040 test_bit(DPC_RESET_HA_INTR, &ha->dpc_flags) ||
1041 test_bit(DPC_RESET_HA_FW_CONTEXT, &ha->dpc_flags) ||
1042 test_bit(DPC_HA_UNRECOVERABLE, &ha->dpc_flags);
1043
1044 }
1045
qla4_8xxx_rd_direct(struct scsi_qla_host * ha,const uint32_t crb_reg)1046 static inline int qla4_8xxx_rd_direct(struct scsi_qla_host *ha,
1047 const uint32_t crb_reg)
1048 {
1049 return ha->isp_ops->rd_reg_direct(ha, ha->reg_tbl[crb_reg]);
1050 }
1051
qla4_8xxx_wr_direct(struct scsi_qla_host * ha,const uint32_t crb_reg,const uint32_t value)1052 static inline void qla4_8xxx_wr_direct(struct scsi_qla_host *ha,
1053 const uint32_t crb_reg,
1054 const uint32_t value)
1055 {
1056 ha->isp_ops->wr_reg_direct(ha, ha->reg_tbl[crb_reg], value);
1057 }
1058
1059 /*---------------------------------------------------------------------------*/
1060
1061 /* Defines for qla4xxx_initialize_adapter() and qla4xxx_recover_adapter() */
1062
1063 #define INIT_ADAPTER 0
1064 #define RESET_ADAPTER 1
1065
1066 #define PRESERVE_DDB_LIST 0
1067 #define REBUILD_DDB_LIST 1
1068
1069 /* Defines for process_aen() */
1070 #define PROCESS_ALL_AENS 0
1071 #define FLUSH_DDB_CHANGED_AENS 1
1072
1073 /* Defines for udev events */
1074 #define QL4_UEVENT_CODE_FW_DUMP 0
1075
1076 #endif /*_QLA4XXX_H */
1077
