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Saurav Kashyap17d87c42014-07-03 08:18:28 -04001/* bnx2fc.h: QLogic NetXtreme II Linux FCoE offload driver.
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08002 *
Bhanu Prakash Gollapudicf122192013-03-08 13:28:53 -08003 * Copyright (c) 2008 - 2013 Broadcom Corporation
Saurav Kashyap17d87c42014-07-03 08:18:28 -04004 * Copyright (c) 2014, QLogic Corporation
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -08005 *
6 * This program is free software; you can redistribute it and/or modify
7 * it under the terms of the GNU General Public License as published by
8 * the Free Software Foundation.
9 *
10 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
11 */
12
Saurav Kashyap17d87c42014-07-03 08:18:28 -040013#ifndef _BNX2FC_H_
14#define _BNX2FC_H_
Joe Perches3db8cc12012-06-04 16:15:43 -070015#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
16
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080017#include <linux/module.h>
18#include <linux/moduleparam.h>
19#include <linux/kernel.h>
20#include <linux/skbuff.h>
21#include <linux/netdevice.h>
22#include <linux/etherdevice.h>
23#include <linux/if_ether.h>
24#include <linux/if_vlan.h>
25#include <linux/kthread.h>
26#include <linux/crc32.h>
27#include <linux/cpu.h>
28#include <linux/types.h>
29#include <linux/list.h>
30#include <linux/delay.h>
31#include <linux/timer.h>
32#include <linux/errno.h>
33#include <linux/pci.h>
34#include <linux/init.h>
35#include <linux/dma-mapping.h>
36#include <linux/workqueue.h>
37#include <linux/mutex.h>
38#include <linux/spinlock.h>
39#include <linux/bitops.h>
40#include <linux/log2.h>
41#include <linux/interrupt.h>
42#include <linux/sched.h>
43#include <linux/io.h>
44
45#include <scsi/scsi.h>
46#include <scsi/scsi_host.h>
47#include <scsi/scsi_device.h>
48#include <scsi/scsi_cmnd.h>
49#include <scsi/scsi_eh.h>
50#include <scsi/scsi_tcq.h>
51#include <scsi/libfc.h>
52#include <scsi/libfcoe.h>
53#include <scsi/fc_encode.h>
54#include <scsi/scsi_transport.h>
55#include <scsi/scsi_transport_fc.h>
56#include <scsi/fc/fc_fip.h>
57#include <scsi/fc/fc_fc2.h>
58#include <scsi/fc_frame.h>
59#include <scsi/fc/fc_fcoe.h>
60#include <scsi/fc/fc_fcp.h>
61
62#include "57xx_hsi_bnx2fc.h"
Jeff Kirsheradfc5212011-04-07 06:03:04 -070063#include "../../net/ethernet/broadcom/cnic_if.h"
Barak Witkowski2e499d32012-06-26 01:31:19 +000064#include "../../net/ethernet/broadcom/bnx2x/bnx2x_mfw_req.h"
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080065#include "bnx2fc_constants.h"
66
67#define BNX2FC_NAME "bnx2fc"
Eddie Wai38e83bf2013-12-11 15:30:23 -080068#define BNX2FC_VERSION "2.4.2"
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080069
70#define PFX "bnx2fc: "
71
Bhanu Prakash Gollapudic13d2b62013-03-08 13:28:51 -080072#define BCM_CHIP_LEN 16
73
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080074#define BNX2X_DOORBELL_PCI_BAR 2
75
76#define BNX2FC_MAX_BD_LEN 0xffff
77#define BNX2FC_BD_SPLIT_SZ 0x8000
78#define BNX2FC_MAX_BDS_PER_CMD 256
79
80#define BNX2FC_SQ_WQES_MAX 256
81
82#define BNX2FC_SCSI_MAX_SQES ((3 * BNX2FC_SQ_WQES_MAX) / 8)
83#define BNX2FC_TM_MAX_SQES ((BNX2FC_SQ_WQES_MAX) / 2)
84#define BNX2FC_ELS_MAX_SQES (BNX2FC_TM_MAX_SQES - 1)
85
86#define BNX2FC_RQ_WQES_MAX 16
87#define BNX2FC_CQ_WQES_MAX (BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
88
Michael Chandc219a22011-08-26 09:45:39 +000089#define BNX2FC_NUM_MAX_SESS 1024
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080090#define BNX2FC_NUM_MAX_SESS_LOG (ilog2(BNX2FC_NUM_MAX_SESS))
91
Barak Witkowski2e499d32012-06-26 01:31:19 +000092#define BNX2FC_MAX_NPIV 256
93
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -080094#define BNX2FC_MIN_PAYLOAD 256
95#define BNX2FC_MAX_PAYLOAD 2048
Bhanu Gollapudi1294bfe2011-03-17 17:13:34 -070096#define BNX2FC_MFS \
97 (BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
98#define BNX2FC_MINI_JUMBO_MTU 2500
99
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800100
101#define BNX2FC_RQ_BUF_SZ 256
102#define BNX2FC_RQ_BUF_LOG_SZ (ilog2(BNX2FC_RQ_BUF_SZ))
103
104#define BNX2FC_SQ_WQE_SIZE (sizeof(struct fcoe_sqe))
105#define BNX2FC_CQ_WQE_SIZE (sizeof(struct fcoe_cqe))
106#define BNX2FC_RQ_WQE_SIZE (BNX2FC_RQ_BUF_SZ)
107#define BNX2FC_XFERQ_WQE_SIZE (sizeof(struct fcoe_xfrqe))
108#define BNX2FC_CONFQ_WQE_SIZE (sizeof(struct fcoe_confqe))
Michael Chanf78afb32013-09-18 01:50:38 -0700109#define BNX2X_DB_SHIFT 3
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800110
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800111#define BNX2FC_TASK_SIZE 128
112#define BNX2FC_TASKS_PER_PAGE (PAGE_SIZE/BNX2FC_TASK_SIZE)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800113
114#define BNX2FC_MAX_ROWS_IN_HASH_TBL 8
115#define BNX2FC_HASH_TBL_CHUNK_SIZE (16 * 1024)
116
117#define BNX2FC_MAX_SEQS 255
Bhanu Prakash Gollapudi44c570b2012-01-23 18:00:47 -0800118#define BNX2FC_MAX_RETRY_CNT 3
119#define BNX2FC_MAX_RPORT_RETRY_CNT 255
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800120
121#define BNX2FC_READ (1 << 1)
122#define BNX2FC_WRITE (1 << 0)
123
124#define BNX2FC_MIN_XID 0
Bhanu Prakash Gollapudi7d742f62012-01-23 18:00:48 -0800125#define FCOE_MAX_NUM_XIDS 0x2000
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +0000126#define FCOE_MAX_XID_OFFSET (FCOE_MAX_NUM_XIDS - 1)
127#define FCOE_XIDS_PER_CPU_OFFSET ((512 * nr_cpu_ids) - 1)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800128#define BNX2FC_MAX_LUN 0xFFFF
129#define BNX2FC_MAX_FCP_TGT 256
130#define BNX2FC_MAX_CMD_LEN 16
131
132#define BNX2FC_TM_TIMEOUT 60 /* secs */
133#define BNX2FC_IO_TIMEOUT 20000UL /* msecs */
134
Nithin Nayak Sujirbefc9b42011-04-25 12:30:10 -0700135#define BNX2FC_WAIT_CNT 1200
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800136#define BNX2FC_FW_TIMEOUT (3 * HZ)
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800137#define PORT_MAX 2
138
139#define CMD_SCSI_STATUS(Cmnd) ((Cmnd)->SCp.Status)
140
141/* FC FCP Status */
142#define FC_GOOD 0
143
144#define BNX2FC_RNID_HBA 0x7
145
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700146#define SRR_RETRY_COUNT 5
147#define REC_RETRY_COUNT 1
Bhanu Prakash Gollapudi7b594762011-07-27 11:32:07 -0700148#define BNX2FC_NUM_ERR_BITS 63
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700149
Bhanu Prakash Gollapudi99cc6002011-10-23 23:23:56 -0700150#define BNX2FC_RELOGIN_WAIT_TIME 200
151#define BNX2FC_RELOGIN_WAIT_CNT 10
152
Bhanu Prakash Gollapudif246fe22012-12-21 19:40:32 -0800153#define BNX2FC_STATS(hba, stat, cnt) \
154 do { \
155 u32 val; \
156 \
157 val = fw_stats->stat.cnt; \
158 if (hba->prev_stats.stat.cnt <= val) \
159 val -= hba->prev_stats.stat.cnt; \
160 else \
161 val += (0xfffffff - hba->prev_stats.stat.cnt); \
162 hba->bfw_stats.cnt += val; \
163 } while (0)
164
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800165/* bnx2fc driver uses only one instance of fcoe_percpu_s */
166extern struct fcoe_percpu_s bnx2fc_global;
167
168extern struct workqueue_struct *bnx2fc_wq;
169
170struct bnx2fc_percpu_s {
171 struct task_struct *iothread;
172 struct list_head work_list;
173 spinlock_t fp_work_lock;
174};
175
Bhanu Prakash Gollapudif246fe22012-12-21 19:40:32 -0800176struct bnx2fc_fw_stats {
177 u64 fc_crc_cnt;
178 u64 fcoe_tx_pkt_cnt;
179 u64 fcoe_rx_pkt_cnt;
180 u64 fcoe_tx_byte_cnt;
181 u64 fcoe_rx_byte_cnt;
182};
183
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800184struct bnx2fc_hba {
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700185 struct list_head list;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800186 struct cnic_dev *cnic;
187 struct pci_dev *pcidev;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800188 struct net_device *phys_dev;
189 unsigned long reg_with_cnic;
190 #define BNX2FC_CNIC_REGISTERED 1
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800191 struct bnx2fc_cmd_mgr *cmd_mgr;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800192 spinlock_t hba_lock;
193 struct mutex hba_mutex;
194 unsigned long adapter_state;
195 #define ADAPTER_STATE_UP 0
196 #define ADAPTER_STATE_GOING_DOWN 1
197 #define ADAPTER_STATE_LINK_DOWN 2
198 #define ADAPTER_STATE_READY 3
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700199 unsigned long flags;
200 #define BNX2FC_FLAG_FW_INIT_DONE 0
201 #define BNX2FC_FLAG_DESTROY_CMPL 1
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800202 u32 next_conn_id;
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +0000203
204 /* xid resources */
205 u16 max_xid;
206 u32 max_tasks;
207 u32 max_outstanding_cmds;
208 u32 elstm_xids;
209
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800210 struct fcoe_task_ctx_entry **task_ctx;
211 dma_addr_t *task_ctx_dma;
212 struct regpair *task_ctx_bd_tbl;
213 dma_addr_t task_ctx_bd_dma;
214
215 int hash_tbl_segment_count;
216 void **hash_tbl_segments;
217 void *hash_tbl_pbl;
218 dma_addr_t hash_tbl_pbl_dma;
219 struct fcoe_t2_hash_table_entry *t2_hash_tbl;
220 dma_addr_t t2_hash_tbl_dma;
221 char *t2_hash_tbl_ptr;
222 dma_addr_t t2_hash_tbl_ptr_dma;
223
224 char *dummy_buffer;
225 dma_addr_t dummy_buf_dma;
226
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700227 /* Active list of offloaded sessions */
228 struct bnx2fc_rport **tgt_ofld_list;
229
230 /* statistics */
Bhanu Prakash Gollapudif246fe22012-12-21 19:40:32 -0800231 struct bnx2fc_fw_stats bfw_stats;
232 struct fcoe_statistics_params prev_stats;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800233 struct fcoe_statistics_params *stats_buffer;
234 dma_addr_t stats_buf_dma;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700235 struct completion stat_req_done;
Barak Witkowski2e499d32012-06-26 01:31:19 +0000236 struct fcoe_capabilities fcoe_cap;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800237
238 /*destroy handling */
239 struct timer_list destroy_timer;
240 wait_queue_head_t destroy_wait;
241
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700242 /* linkdown handling */
243 wait_queue_head_t shutdown_wait;
244 int wait_for_link_down;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800245 int num_ofld_sess;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700246 struct list_head vports;
Bhanu Prakash Gollapudic13d2b62013-03-08 13:28:51 -0800247
248 char chip_num[BCM_CHIP_LEN];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800249};
250
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700251struct bnx2fc_interface {
252 struct list_head list;
253 unsigned long if_flags;
254 #define BNX2FC_CTLR_INIT_DONE 0
255 struct bnx2fc_hba *hba;
256 struct net_device *netdev;
257 struct packet_type fcoe_packet_type;
258 struct packet_type fip_packet_type;
259 struct workqueue_struct *timer_work_queue;
260 struct kref kref;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700261 u8 vlan_enabled;
262 int vlan_id;
Bhanu Prakash Gollapudi8a5badf2011-08-30 15:54:48 -0700263 bool enabled;
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700264};
265
Robert Lovefd8f8902012-05-22 19:06:16 -0700266#define bnx2fc_from_ctlr(x) \
267 ((struct bnx2fc_interface *)((x) + 1))
268
269#define bnx2fc_to_ctlr(x) \
270 ((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800271
Bhanu Prakash Gollapudid36b3272011-05-27 11:47:27 -0700272struct bnx2fc_lport {
273 struct list_head list;
274 struct fc_lport *lport;
275};
276
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800277struct bnx2fc_cmd_mgr {
278 struct bnx2fc_hba *hba;
279 u16 next_idx;
280 struct list_head *free_list;
281 spinlock_t *free_list_lock;
282 struct io_bdt **io_bdt_pool;
283 struct bnx2fc_cmd **cmds;
284};
285
286struct bnx2fc_rport {
287 struct fcoe_port *port;
288 struct fc_rport *rport;
289 struct fc_rport_priv *rdata;
290 void __iomem *ctx_base;
291#define DPM_TRIGER_TYPE 0x40
Bhanu Prakash Gollapudib252f4c2011-07-26 14:51:40 -0700292 u32 io_timeout;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800293 u32 fcoe_conn_id;
294 u32 context_id;
295 u32 sid;
Bhanu Prakash Gollapudib252f4c2011-07-26 14:51:40 -0700296 int dev_type;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800297
298 unsigned long flags;
299#define BNX2FC_FLAG_SESSION_READY 0x1
300#define BNX2FC_FLAG_OFFLOADED 0x2
301#define BNX2FC_FLAG_DISABLED 0x3
302#define BNX2FC_FLAG_DESTROYED 0x4
303#define BNX2FC_FLAG_OFLD_REQ_CMPL 0x5
Bhanu Prakash Gollapudiaea71a02011-07-26 14:51:39 -0700304#define BNX2FC_FLAG_CTX_ALLOC_FAILURE 0x6
305#define BNX2FC_FLAG_UPLD_REQ_COMPL 0x7
306#define BNX2FC_FLAG_EXPL_LOGO 0x8
Bhanu Prakash Gollapudi5c17ae22012-06-07 02:19:35 -0700307#define BNX2FC_FLAG_DISABLE_FAILED 0x9
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -0800308#define BNX2FC_FLAG_ENABLED 0xa
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800309
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300310 u8 src_addr[ETH_ALEN];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800311 u32 max_sqes;
312 u32 max_rqes;
313 u32 max_cqes;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300314 atomic_t free_sqes;
315
316 struct b577xx_doorbell_set_prod sq_db;
317 struct b577xx_fcoe_rx_doorbell rx_db;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800318
319 struct fcoe_sqe *sq;
320 dma_addr_t sq_dma;
321 u16 sq_prod_idx;
322 u8 sq_curr_toggle_bit;
323 u32 sq_mem_size;
324
325 struct fcoe_cqe *cq;
326 dma_addr_t cq_dma;
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300327 u16 cq_cons_idx;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800328 u8 cq_curr_toggle_bit;
329 u32 cq_mem_size;
330
331 void *rq;
332 dma_addr_t rq_dma;
333 u32 rq_prod_idx;
334 u32 rq_cons_idx;
335 u32 rq_mem_size;
336
337 void *rq_pbl;
338 dma_addr_t rq_pbl_dma;
339 u32 rq_pbl_size;
340
341 struct fcoe_xfrqe *xferq;
342 dma_addr_t xferq_dma;
343 u32 xferq_mem_size;
344
345 struct fcoe_confqe *confq;
346 dma_addr_t confq_dma;
347 u32 confq_mem_size;
348
349 void *confq_pbl;
350 dma_addr_t confq_pbl_dma;
351 u32 confq_pbl_size;
352
353 struct fcoe_conn_db *conn_db;
354 dma_addr_t conn_db_dma;
355 u32 conn_db_mem_size;
356
357 struct fcoe_sqe *lcq;
358 dma_addr_t lcq_dma;
359 u32 lcq_mem_size;
360
361 void *ofld_req[4];
362 dma_addr_t ofld_req_dma[4];
363 void *enbl_req;
364 dma_addr_t enbl_req_dma;
365
366 spinlock_t tgt_lock;
367 spinlock_t cq_lock;
368 atomic_t num_active_ios;
369 u32 flush_in_prog;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800370 unsigned long timestamp;
Eddie Wai245a5752013-12-11 15:30:22 -0800371 unsigned long retry_delay_timestamp;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800372 struct list_head free_task_list;
373 struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800374 struct list_head active_cmd_queue;
375 struct list_head els_queue;
376 struct list_head io_retire_queue;
377 struct list_head active_tm_queue;
378
379 struct timer_list ofld_timer;
380 wait_queue_head_t ofld_wait;
381
382 struct timer_list upld_timer;
383 wait_queue_head_t upld_wait;
384};
385
386struct bnx2fc_mp_req {
387 u8 tm_flags;
388
389 u32 req_len;
390 void *req_buf;
391 dma_addr_t req_buf_dma;
392 struct fcoe_bd_ctx *mp_req_bd;
393 dma_addr_t mp_req_bd_dma;
394 struct fc_frame_header req_fc_hdr;
395
396 u32 resp_len;
397 void *resp_buf;
398 dma_addr_t resp_buf_dma;
399 struct fcoe_bd_ctx *mp_resp_bd;
400 dma_addr_t mp_resp_bd_dma;
401 struct fc_frame_header resp_fc_hdr;
402};
403
404struct bnx2fc_els_cb_arg {
405 struct bnx2fc_cmd *aborted_io_req;
406 struct bnx2fc_cmd *io_req;
407 u16 l2_oxid;
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -0700408 u32 offset;
409 enum fc_rctl r_ctl;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800410};
411
412/* bnx2fc command structure */
413struct bnx2fc_cmd {
414 struct list_head link;
415 u8 on_active_queue;
416 u8 on_tmf_queue;
417 u8 cmd_type;
418#define BNX2FC_SCSI_CMD 1
419#define BNX2FC_TASK_MGMT_CMD 2
420#define BNX2FC_ABTS 3
421#define BNX2FC_ELS 4
422#define BNX2FC_CLEANUP 5
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -0700423#define BNX2FC_SEQ_CLEANUP 6
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800424 u8 io_req_flags;
425 struct kref refcount;
426 struct fcoe_port *port;
427 struct bnx2fc_rport *tgt;
428 struct scsi_cmnd *sc_cmd;
429 struct bnx2fc_cmd_mgr *cmd_mgr;
430 struct bnx2fc_mp_req mp_req;
431 void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
432 struct bnx2fc_els_cb_arg *cb_arg;
433 struct delayed_work timeout_work; /* timer for ULP timeouts */
434 struct completion tm_done;
435 int wait_for_comp;
436 u16 xid;
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700437 struct fcoe_err_report_entry err_entry;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800438 struct fcoe_task_ctx_entry *task;
439 struct io_bdt *bd_tbl;
440 struct fcp_rsp *rsp;
441 size_t data_xfer_len;
442 unsigned long req_flags;
443#define BNX2FC_FLAG_ISSUE_RRQ 0x1
444#define BNX2FC_FLAG_ISSUE_ABTS 0x2
445#define BNX2FC_FLAG_ABTS_DONE 0x3
446#define BNX2FC_FLAG_TM_COMPL 0x4
447#define BNX2FC_FLAG_TM_TIMEOUT 0x5
448#define BNX2FC_FLAG_IO_CLEANUP 0x6
449#define BNX2FC_FLAG_RETIRE_OXID 0x7
450#define BNX2FC_FLAG_EH_ABORT 0x8
451#define BNX2FC_FLAG_IO_COMPL 0x9
452#define BNX2FC_FLAG_ELS_DONE 0xa
453#define BNX2FC_FLAG_ELS_TIMEOUT 0xb
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700454#define BNX2FC_FLAG_CMD_LOST 0xc
455#define BNX2FC_FLAG_SRR_SENT 0xd
456 u8 rec_retry;
457 u8 srr_retry;
458 u32 srr_offset;
459 u8 srr_rctl;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800460 u32 fcp_resid;
461 u32 fcp_rsp_len;
462 u32 fcp_sns_len;
463 u8 cdb_status; /* SCSI IO status */
464 u8 fcp_status; /* FCP IO status */
465 u8 fcp_rsp_code;
466 u8 scsi_comp_flags;
467};
468
469struct io_bdt {
470 struct bnx2fc_cmd *io_req;
471 struct fcoe_bd_ctx *bd_tbl;
472 dma_addr_t bd_tbl_dma;
473 u16 bd_valid;
474};
475
476struct bnx2fc_work {
477 struct list_head list;
478 struct bnx2fc_rport *tgt;
479 u16 wqe;
480};
481struct bnx2fc_unsol_els {
482 struct fc_lport *lport;
483 struct fc_frame *fp;
Bhanu Prakash Gollapudid36b3272011-05-27 11:47:27 -0700484 struct bnx2fc_hba *hba;
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800485 struct work_struct unsol_els_work;
486};
487
488
489
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700490struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800491struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
492void bnx2fc_cmd_release(struct kref *ref);
493int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
494int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
495int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
496int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
497 struct bnx2fc_rport *tgt);
Bhanu Prakash Gollapudie7f4fed2012-12-21 19:40:31 -0800498int bnx2fc_send_session_enable_req(struct fcoe_port *port,
499 struct bnx2fc_rport *tgt);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800500int bnx2fc_send_session_disable_req(struct fcoe_port *port,
501 struct bnx2fc_rport *tgt);
502int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
503 struct bnx2fc_rport *tgt);
504int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
505void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
506 u32 num_cqe);
507int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
508void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
509int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
510void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
Bhanu Prakash Gollapudi0eb43b42013-04-22 19:22:30 +0000511struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800512void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
513void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
514char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
515void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
516int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
517int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
518int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
519int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
520int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
521int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
522int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
523void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
524 unsigned int timer_msec);
525int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
526void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
527 struct fcoe_task_ctx_entry *task,
528 u16 orig_xid);
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -0700529void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req,
530 struct fcoe_task_ctx_entry *task,
531 struct bnx2fc_cmd *orig_io_req,
532 u32 offset);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800533void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
534 struct fcoe_task_ctx_entry *task);
535void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
536 struct fcoe_task_ctx_entry *task);
537void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
538void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
539int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
540int bnx2fc_eh_host_reset(struct scsi_cmnd *sc_cmd);
541int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
542int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
543void bnx2fc_rport_event_handler(struct fc_lport *lport,
544 struct fc_rport_priv *rport,
545 enum fc_rport_event event);
546void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
547 struct fcoe_task_ctx_entry *task,
548 u8 num_rq);
549void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
550 struct fcoe_task_ctx_entry *task,
551 u8 num_rq);
552void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
553 struct fcoe_task_ctx_entry *task,
554 u8 num_rq);
555void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
556 struct fcoe_task_ctx_entry *task,
557 u8 num_rq);
558void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
559 struct fcoe_task_ctx_entry *task,
560 u8 num_rq);
561void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
562 struct fcp_cmnd *fcp_cmnd);
563
564
565
566void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
567struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
568 struct fc_frame *fp, unsigned int op,
569 void (*resp)(struct fc_seq *,
570 struct fc_frame *,
571 void *),
572 void *arg, u32 timeout);
Vlad Zolotarov619c5cb2011-06-14 14:33:44 +0300573void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800574int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
575void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe);
576struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
577 u32 port_id);
578void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
579 unsigned char *buf,
580 u32 frame_len, u16 l2_oxid);
581int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
Bhanu Prakash Gollapudi74446952011-07-27 11:32:06 -0700582int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
Bhanu Prakash Gollapudi6c5a7ce2011-07-27 11:32:05 -0700583int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
584int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
585void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,
586 struct fcoe_task_ctx_entry *task,
587 u8 rx_state);
588int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
589 enum fc_rctl r_ctl);
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800590
Joe Perches3db8cc12012-06-04 16:15:43 -0700591
592#include "bnx2fc_debug.h"
593
Bhanu Gollapudi853e2bd2011-02-04 12:10:34 -0800594#endif