1 /* bnx2fc.h: QLogic Linux FCoE offload driver.
2  *
3  * Copyright (c) 2008-2013 Broadcom Corporation
4  * Copyright (c) 2014-2016 QLogic Corporation
5  * Copyright (c) 2016-2017 Cavium Inc.
6  *
7  * This program is free software; you can redistribute it and/or modify
8  * it under the terms of the GNU General Public License as published by
9  * the Free Software Foundation.
10  *
11  * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
12  */
13 
14 #ifndef _BNX2FC_H_
15 #define _BNX2FC_H_
16 #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt
17 
18 #include <linux/module.h>
19 #include <linux/moduleparam.h>
20 #include <linux/kernel.h>
21 #include <linux/skbuff.h>
22 #include <linux/netdevice.h>
23 #include <linux/etherdevice.h>
24 #include <linux/if_ether.h>
25 #include <linux/if_vlan.h>
26 #include <linux/kthread.h>
27 #include <linux/crc32.h>
28 #include <linux/cpu.h>
29 #include <linux/types.h>
30 #include <linux/list.h>
31 #include <linux/delay.h>
32 #include <linux/timer.h>
33 #include <linux/errno.h>
34 #include <linux/pci.h>
35 #include <linux/init.h>
36 #include <linux/dma-mapping.h>
37 #include <linux/workqueue.h>
38 #include <linux/mutex.h>
39 #include <linux/spinlock.h>
40 #include <linux/bitops.h>
41 #include <linux/log2.h>
42 #include <linux/interrupt.h>
43 #include <linux/sched/signal.h>
44 #include <linux/io.h>
45 
46 #include <scsi/scsi.h>
47 #include <scsi/scsi_host.h>
48 #include <scsi/scsi_device.h>
49 #include <scsi/scsi_cmnd.h>
50 #include <scsi/scsi_eh.h>
51 #include <scsi/scsi_tcq.h>
52 #include <scsi/libfc.h>
53 #include <scsi/libfcoe.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"
63 #include "../../net/ethernet/broadcom/cnic_if.h"
64 #include  "../../net/ethernet/broadcom/bnx2x/bnx2x_mfw_req.h"
65 #include "bnx2fc_constants.h"
66 
67 #define BNX2FC_NAME		"bnx2fc"
68 #define BNX2FC_VERSION		"2.12.13"
69 
70 #define PFX			"bnx2fc: "
71 
72 #define BCM_CHIP_LEN		16
73 
74 #define BNX2X_DOORBELL_PCI_BAR		2
75 
76 #define BNX2FC_MAX_BD_LEN		0xffff
77 #define BNX2FC_BD_SPLIT_SZ		0xffff
78 #define BNX2FC_MAX_BDS_PER_CMD		255
79 #define BNX2FC_FW_MAX_BDS_PER_CMD	255
80 
81 #define BNX2FC_SQ_WQES_MAX	256
82 
83 #define BNX2FC_SCSI_MAX_SQES	((3 * BNX2FC_SQ_WQES_MAX) / 8)
84 #define BNX2FC_TM_MAX_SQES	((BNX2FC_SQ_WQES_MAX) / 2)
85 #define BNX2FC_ELS_MAX_SQES	(BNX2FC_TM_MAX_SQES - 1)
86 
87 #define BNX2FC_RQ_WQES_MAX	16
88 #define BNX2FC_CQ_WQES_MAX	(BNX2FC_SQ_WQES_MAX + BNX2FC_RQ_WQES_MAX)
89 
90 #define BNX2FC_NUM_MAX_SESS	1024
91 #define BNX2FC_NUM_MAX_SESS_LOG	(ilog2(BNX2FC_NUM_MAX_SESS))
92 
93 #define BNX2FC_MAX_NPIV		256
94 
95 #define BNX2FC_MIN_PAYLOAD		256
96 #define BNX2FC_MAX_PAYLOAD		2048
97 #define BNX2FC_MFS			\
98 			(BNX2FC_MAX_PAYLOAD + sizeof(struct fc_frame_header))
99 #define BNX2FC_MINI_JUMBO_MTU		2500
100 
101 
102 #define BNX2FC_RQ_BUF_SZ		256
103 #define BNX2FC_RQ_BUF_LOG_SZ		(ilog2(BNX2FC_RQ_BUF_SZ))
104 
105 #define BNX2FC_SQ_WQE_SIZE		(sizeof(struct fcoe_sqe))
106 #define BNX2FC_CQ_WQE_SIZE		(sizeof(struct fcoe_cqe))
107 #define BNX2FC_RQ_WQE_SIZE		(BNX2FC_RQ_BUF_SZ)
108 #define BNX2FC_XFERQ_WQE_SIZE		(sizeof(struct fcoe_xfrqe))
109 #define BNX2FC_CONFQ_WQE_SIZE		(sizeof(struct fcoe_confqe))
110 #define BNX2X_DB_SHIFT			3
111 
112 #define BNX2FC_TASK_SIZE		128
113 #define	BNX2FC_TASKS_PER_PAGE		(PAGE_SIZE/BNX2FC_TASK_SIZE)
114 
115 #define BNX2FC_MAX_ROWS_IN_HASH_TBL	8
116 #define BNX2FC_HASH_TBL_CHUNK_SIZE	(16 * 1024)
117 
118 #define BNX2FC_MAX_SEQS			255
119 #define BNX2FC_MAX_RETRY_CNT		3
120 #define BNX2FC_MAX_RPORT_RETRY_CNT	255
121 
122 #define BNX2FC_READ			(1 << 1)
123 #define BNX2FC_WRITE			(1 << 0)
124 
125 #define BNX2FC_MIN_XID			0
126 #define FCOE_MAX_NUM_XIDS		0x2000
127 #define FCOE_MAX_XID_OFFSET		(FCOE_MAX_NUM_XIDS - 1)
128 #define FCOE_XIDS_PER_CPU_OFFSET	((512 * nr_cpu_ids) - 1)
129 #define BNX2FC_MAX_LUN			0xFFFF
130 #define BNX2FC_MAX_FCP_TGT		256
131 #define BNX2FC_MAX_CMD_LEN		16
132 
133 #define BNX2FC_TM_TIMEOUT		60	/* secs */
134 #define BNX2FC_IO_TIMEOUT		20000UL	/* msecs */
135 
136 #define BNX2FC_WAIT_CNT			1200
137 #define BNX2FC_FW_TIMEOUT		(3 * HZ)
138 #define PORT_MAX			2
139 
140 /* FC FCP Status */
141 #define	FC_GOOD				0
142 
143 #define BNX2FC_RNID_HBA			0x7
144 
145 #define SRR_RETRY_COUNT			5
146 #define REC_RETRY_COUNT			1
147 #define BNX2FC_NUM_ERR_BITS		63
148 
149 #define BNX2FC_RELOGIN_WAIT_TIME	200
150 #define BNX2FC_RELOGIN_WAIT_CNT		10
151 
152 #define BNX2FC_STATS(hba, stat, cnt)					\
153 	do {								\
154 		u32 val;						\
155 									\
156 		val = fw_stats->stat.cnt;				\
157 		if (hba->prev_stats.stat.cnt <= val)			\
158 			val -= hba->prev_stats.stat.cnt;		\
159 		else							\
160 			val += (0xfffffff - hba->prev_stats.stat.cnt);	\
161 		hba->bfw_stats.cnt += val;				\
162 	} while (0)
163 
164 /* bnx2fc driver uses only one instance of fcoe_percpu_s */
165 extern struct fcoe_percpu_s bnx2fc_global;
166 
167 extern struct workqueue_struct *bnx2fc_wq;
168 
169 struct bnx2fc_percpu_s {
170 	struct task_struct *iothread;
171 	struct list_head work_list;
172 	spinlock_t fp_work_lock;
173 };
174 
175 struct bnx2fc_fw_stats {
176 	u64	fc_crc_cnt;
177 	u64	fcoe_tx_pkt_cnt;
178 	u64	fcoe_rx_pkt_cnt;
179 	u64	fcoe_tx_byte_cnt;
180 	u64	fcoe_rx_byte_cnt;
181 };
182 
183 struct bnx2fc_hba {
184 	struct list_head list;
185 	struct cnic_dev *cnic;
186 	struct pci_dev *pcidev;
187 	struct net_device *phys_dev;
188 	unsigned long reg_with_cnic;
189 		#define BNX2FC_CNIC_REGISTERED           1
190 	struct bnx2fc_cmd_mgr *cmd_mgr;
191 	spinlock_t hba_lock;
192 	struct mutex hba_mutex;
193 	struct mutex hba_stats_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
199 	unsigned long flags;
200 		#define BNX2FC_FLAG_FW_INIT_DONE	0
201 		#define BNX2FC_FLAG_DESTROY_CMPL	1
202 	u32 next_conn_id;
203 
204 	/* xid resources */
205 	u16 max_xid;
206 	u32 max_tasks;
207 	u32 max_outstanding_cmds;
208 	u32 elstm_xids;
209 
210 	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 
227 	/* Active list of offloaded sessions */
228 	struct bnx2fc_rport **tgt_ofld_list;
229 
230 	/* statistics */
231 	struct bnx2fc_fw_stats bfw_stats;
232 	struct fcoe_statistics_params prev_stats;
233 	struct fcoe_statistics_params *stats_buffer;
234 	dma_addr_t stats_buf_dma;
235 	struct completion stat_req_done;
236 	struct fcoe_capabilities fcoe_cap;
237 
238 	/*destroy handling */
239 	struct timer_list destroy_timer;
240 	wait_queue_head_t destroy_wait;
241 
242 	/* linkdown handling */
243 	wait_queue_head_t shutdown_wait;
244 	int wait_for_link_down;
245 	int num_ofld_sess;
246 	struct list_head vports;
247 
248 	char chip_num[BCM_CHIP_LEN];
249 };
250 
251 struct 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;
261 	u8 vlan_enabled;
262 	int vlan_id;
263 	bool enabled;
264 	u8 tm_timeout;
265 };
266 
267 #define bnx2fc_from_ctlr(x)			\
268 	((struct bnx2fc_interface *)((x) + 1))
269 
270 #define bnx2fc_to_ctlr(x)					\
271 	((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
272 
273 struct bnx2fc_lport {
274 	struct list_head list;
275 	struct fc_lport *lport;
276 };
277 
278 struct bnx2fc_cmd_mgr {
279 	struct bnx2fc_hba *hba;
280 	u16 next_idx;
281 	struct list_head *free_list;
282 	spinlock_t *free_list_lock;
283 	struct io_bdt **io_bdt_pool;
284 	struct bnx2fc_cmd **cmds;
285 };
286 
287 struct bnx2fc_rport {
288 	struct fcoe_port *port;
289 	struct fc_rport *rport;
290 	struct fc_rport_priv *rdata;
291 	void __iomem *ctx_base;
292 #define DPM_TRIGER_TYPE		0x40
293 	u32 io_timeout;
294 	u32 fcoe_conn_id;
295 	u32 context_id;
296 	u32 sid;
297 	int dev_type;
298 
299 	unsigned long flags;
300 #define BNX2FC_FLAG_SESSION_READY	0x1
301 #define BNX2FC_FLAG_OFFLOADED		0x2
302 #define BNX2FC_FLAG_DISABLED		0x3
303 #define BNX2FC_FLAG_DESTROYED		0x4
304 #define BNX2FC_FLAG_OFLD_REQ_CMPL	0x5
305 #define BNX2FC_FLAG_CTX_ALLOC_FAILURE	0x6
306 #define BNX2FC_FLAG_UPLD_REQ_COMPL	0x7
307 #define BNX2FC_FLAG_DISABLE_FAILED	0x9
308 #define BNX2FC_FLAG_ENABLED		0xa
309 
310 	u8 src_addr[ETH_ALEN];
311 	u32 max_sqes;
312 	u32 max_rqes;
313 	u32 max_cqes;
314 	atomic_t free_sqes;
315 
316 	struct b577xx_doorbell_set_prod sq_db;
317 	struct b577xx_fcoe_rx_doorbell rx_db;
318 
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;
327 	u16 cq_cons_idx;
328 	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;
370 	unsigned long timestamp;
371 	unsigned long retry_delay_timestamp;
372 	struct list_head free_task_list;
373 	struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
374 	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 
386 struct 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 
404 struct bnx2fc_els_cb_arg {
405 	struct bnx2fc_cmd *aborted_io_req;
406 	struct bnx2fc_cmd *io_req;
407 	u16 l2_oxid;
408 	u32 offset;
409 	enum fc_rctl r_ctl;
410 };
411 
412 /* bnx2fc command structure */
413 struct 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
423 #define BNX2FC_SEQ_CLEANUP		6
424 	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 abts_done;
435 	struct completion cleanup_done;
436 	int wait_for_abts_comp;
437 	int wait_for_cleanup_comp;
438 	u16 xid;
439 	struct fcoe_err_report_entry err_entry;
440 	struct fcoe_task_ctx_entry *task;
441 	struct io_bdt *bd_tbl;
442 	struct fcp_rsp *rsp;
443 	size_t data_xfer_len;
444 	unsigned long req_flags;
445 #define BNX2FC_FLAG_ISSUE_RRQ		0x1
446 #define BNX2FC_FLAG_ISSUE_ABTS		0x2
447 #define BNX2FC_FLAG_ABTS_DONE		0x3
448 #define BNX2FC_FLAG_TM_COMPL		0x4
449 #define BNX2FC_FLAG_TM_TIMEOUT		0x5
450 #define BNX2FC_FLAG_IO_CLEANUP		0x6
451 #define BNX2FC_FLAG_RETIRE_OXID		0x7
452 #define	BNX2FC_FLAG_EH_ABORT		0x8
453 #define BNX2FC_FLAG_IO_COMPL		0x9
454 #define BNX2FC_FLAG_ELS_DONE		0xa
455 #define BNX2FC_FLAG_ELS_TIMEOUT		0xb
456 #define BNX2FC_FLAG_CMD_LOST		0xc
457 #define BNX2FC_FLAG_SRR_SENT		0xd
458 #define BNX2FC_FLAG_ISSUE_CLEANUP_REQ	0xe
459 	u8 rec_retry;
460 	u8 srr_retry;
461 	u32 srr_offset;
462 	u8 srr_rctl;
463 	u32 fcp_resid;
464 	u32 fcp_rsp_len;
465 	u32 fcp_sns_len;
466 	u8 cdb_status; /* SCSI IO status */
467 	u8 fcp_status; /* FCP IO status */
468 	u8 fcp_rsp_code;
469 	u8 scsi_comp_flags;
470 };
471 
472 struct io_bdt {
473 	struct bnx2fc_cmd *io_req;
474 	struct fcoe_bd_ctx *bd_tbl;
475 	dma_addr_t bd_tbl_dma;
476 	u16 bd_valid;
477 };
478 
479 struct bnx2fc_work {
480 	struct list_head list;
481 	struct bnx2fc_rport *tgt;
482 	struct fcoe_task_ctx_entry *task;
483 	unsigned char rq_data[BNX2FC_RQ_BUF_SZ];
484 	u16 wqe;
485 	u8 num_rq;
486 };
487 struct bnx2fc_unsol_els {
488 	struct fc_lport *lport;
489 	struct fc_frame *fp;
490 	struct bnx2fc_hba *hba;
491 	struct work_struct unsol_els_work;
492 };
493 
494 struct bnx2fc_priv {
495 	struct bnx2fc_cmd *io_req;
496 };
497 
bnx2fc_priv(struct scsi_cmnd * cmd)498 static inline struct bnx2fc_priv *bnx2fc_priv(struct scsi_cmnd *cmd)
499 {
500 	return scsi_cmd_priv(cmd);
501 }
502 
503 struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
504 struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
505 void bnx2fc_cmd_release(struct kref *ref);
506 int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
507 int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
508 int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
509 int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
510 					struct bnx2fc_rport *tgt);
511 int bnx2fc_send_session_enable_req(struct fcoe_port *port,
512 					struct bnx2fc_rport *tgt);
513 int bnx2fc_send_session_disable_req(struct fcoe_port *port,
514 				    struct bnx2fc_rport *tgt);
515 int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
516 					struct bnx2fc_rport *tgt);
517 int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
518 void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
519 					u32 num_cqe);
520 int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
521 void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
522 int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
523 void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
524 struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba);
525 void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
526 void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
527 char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
528 void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
529 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
530 int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
531 int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
532 int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
533 int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
534 int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
535 int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
536 void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
537 			  unsigned int timer_msec);
538 int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
539 void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
540 			      struct fcoe_task_ctx_entry *task,
541 			      u16 orig_xid);
542 void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req,
543 				  struct fcoe_task_ctx_entry *task,
544 				  struct bnx2fc_cmd *orig_io_req,
545 				  u32 offset);
546 void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
547 			 struct fcoe_task_ctx_entry *task);
548 void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
549 			     struct fcoe_task_ctx_entry *task);
550 void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
551 void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
552 int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
553 int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
554 int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
555 void bnx2fc_rport_event_handler(struct fc_lport *lport,
556 				struct fc_rport_priv *rport,
557 				enum fc_rport_event event);
558 void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
559 				   struct fcoe_task_ctx_entry *task,
560 				   u8 num_rq, unsigned char *rq_data);
561 void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
562 			       struct fcoe_task_ctx_entry *task,
563 			       u8 num_rq);
564 void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
565 			       struct fcoe_task_ctx_entry *task,
566 			       u8 num_rq);
567 void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
568 			     struct fcoe_task_ctx_entry *task,
569 			     u8 num_rq, unsigned char *rq_data);
570 void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
571 			      struct fcoe_task_ctx_entry *task,
572 			      u8 num_rq);
573 void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
574 			   struct fcp_cmnd *fcp_cmnd);
575 
576 
577 
578 void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
579 struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
580 				      struct fc_frame *fp, unsigned int op,
581 				      void (*resp)(struct fc_seq *,
582 						   struct fc_frame *,
583 						   void *),
584 				      void *arg, u32 timeout);
585 void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
586 int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
587 void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe,
588 			     unsigned char *rq_data, u8 num_rq,
589 			     struct fcoe_task_ctx_entry *task);
590 struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
591 					     u32 port_id);
592 void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
593 				   unsigned char *buf,
594 				   u32 frame_len, u16 l2_oxid);
595 int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
596 int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
597 int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
598 int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
599 void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,
600 				      struct fcoe_task_ctx_entry *task,
601 				      u8 rx_state);
602 int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
603 				enum fc_rctl r_ctl);
604 
605 
606 #include "bnx2fc_debug.h"
607 
608 #endif
609