xref: /openbmc/linux/drivers/scsi/bnx2fc/bnx2fc.h (revision 31e67366)
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 #define CMD_SCSI_STATUS(Cmnd)		((Cmnd)->SCp.Status)
141 
142 /* FC FCP Status */
143 #define	FC_GOOD				0
144 
145 #define BNX2FC_RNID_HBA			0x7
146 
147 #define SRR_RETRY_COUNT			5
148 #define REC_RETRY_COUNT			1
149 #define BNX2FC_NUM_ERR_BITS		63
150 
151 #define BNX2FC_RELOGIN_WAIT_TIME	200
152 #define BNX2FC_RELOGIN_WAIT_CNT		10
153 
154 #define BNX2FC_STATS(hba, stat, cnt)					\
155 	do {								\
156 		u32 val;						\
157 									\
158 		val = fw_stats->stat.cnt;				\
159 		if (hba->prev_stats.stat.cnt <= val)			\
160 			val -= hba->prev_stats.stat.cnt;		\
161 		else							\
162 			val += (0xfffffff - hba->prev_stats.stat.cnt);	\
163 		hba->bfw_stats.cnt += val;				\
164 	} while (0)
165 
166 /* bnx2fc driver uses only one instance of fcoe_percpu_s */
167 extern struct fcoe_percpu_s bnx2fc_global;
168 
169 extern struct workqueue_struct *bnx2fc_wq;
170 
171 struct bnx2fc_percpu_s {
172 	struct task_struct *iothread;
173 	struct list_head work_list;
174 	spinlock_t fp_work_lock;
175 };
176 
177 struct bnx2fc_fw_stats {
178 	u64	fc_crc_cnt;
179 	u64	fcoe_tx_pkt_cnt;
180 	u64	fcoe_rx_pkt_cnt;
181 	u64	fcoe_tx_byte_cnt;
182 	u64	fcoe_rx_byte_cnt;
183 };
184 
185 struct bnx2fc_hba {
186 	struct list_head list;
187 	struct cnic_dev *cnic;
188 	struct pci_dev *pcidev;
189 	struct net_device *phys_dev;
190 	unsigned long reg_with_cnic;
191 		#define BNX2FC_CNIC_REGISTERED           1
192 	struct bnx2fc_cmd_mgr *cmd_mgr;
193 	spinlock_t hba_lock;
194 	struct mutex hba_mutex;
195 	struct mutex hba_stats_mutex;
196 	unsigned long adapter_state;
197 		#define ADAPTER_STATE_UP		0
198 		#define ADAPTER_STATE_GOING_DOWN	1
199 		#define ADAPTER_STATE_LINK_DOWN		2
200 		#define ADAPTER_STATE_READY		3
201 	unsigned long flags;
202 		#define BNX2FC_FLAG_FW_INIT_DONE	0
203 		#define BNX2FC_FLAG_DESTROY_CMPL	1
204 	u32 next_conn_id;
205 
206 	/* xid resources */
207 	u16 max_xid;
208 	u32 max_tasks;
209 	u32 max_outstanding_cmds;
210 	u32 elstm_xids;
211 
212 	struct fcoe_task_ctx_entry **task_ctx;
213 	dma_addr_t *task_ctx_dma;
214 	struct regpair *task_ctx_bd_tbl;
215 	dma_addr_t task_ctx_bd_dma;
216 
217 	int hash_tbl_segment_count;
218 	void **hash_tbl_segments;
219 	void *hash_tbl_pbl;
220 	dma_addr_t hash_tbl_pbl_dma;
221 	struct fcoe_t2_hash_table_entry *t2_hash_tbl;
222 	dma_addr_t t2_hash_tbl_dma;
223 	char *t2_hash_tbl_ptr;
224 	dma_addr_t t2_hash_tbl_ptr_dma;
225 
226 	char *dummy_buffer;
227 	dma_addr_t dummy_buf_dma;
228 
229 	/* Active list of offloaded sessions */
230 	struct bnx2fc_rport **tgt_ofld_list;
231 
232 	/* statistics */
233 	struct bnx2fc_fw_stats bfw_stats;
234 	struct fcoe_statistics_params prev_stats;
235 	struct fcoe_statistics_params *stats_buffer;
236 	dma_addr_t stats_buf_dma;
237 	struct completion stat_req_done;
238 	struct fcoe_capabilities fcoe_cap;
239 
240 	/*destroy handling */
241 	struct timer_list destroy_timer;
242 	wait_queue_head_t destroy_wait;
243 
244 	/* linkdown handling */
245 	wait_queue_head_t shutdown_wait;
246 	int wait_for_link_down;
247 	int num_ofld_sess;
248 	struct list_head vports;
249 
250 	char chip_num[BCM_CHIP_LEN];
251 };
252 
253 struct bnx2fc_interface {
254 	struct list_head list;
255 	unsigned long if_flags;
256 		#define BNX2FC_CTLR_INIT_DONE		0
257 	struct bnx2fc_hba *hba;
258 	struct net_device *netdev;
259 	struct packet_type fcoe_packet_type;
260 	struct packet_type fip_packet_type;
261 	struct workqueue_struct *timer_work_queue;
262 	struct kref kref;
263 	u8 vlan_enabled;
264 	int vlan_id;
265 	bool enabled;
266 	u8 tm_timeout;
267 };
268 
269 #define bnx2fc_from_ctlr(x)			\
270 	((struct bnx2fc_interface *)((x) + 1))
271 
272 #define bnx2fc_to_ctlr(x)					\
273 	((struct fcoe_ctlr *)(((struct fcoe_ctlr *)(x)) - 1))
274 
275 struct bnx2fc_lport {
276 	struct list_head list;
277 	struct fc_lport *lport;
278 };
279 
280 struct bnx2fc_cmd_mgr {
281 	struct bnx2fc_hba *hba;
282 	u16 next_idx;
283 	struct list_head *free_list;
284 	spinlock_t *free_list_lock;
285 	struct io_bdt **io_bdt_pool;
286 	struct bnx2fc_cmd **cmds;
287 };
288 
289 struct bnx2fc_rport {
290 	struct fcoe_port *port;
291 	struct fc_rport *rport;
292 	struct fc_rport_priv *rdata;
293 	void __iomem *ctx_base;
294 #define DPM_TRIGER_TYPE		0x40
295 	u32 io_timeout;
296 	u32 fcoe_conn_id;
297 	u32 context_id;
298 	u32 sid;
299 	int dev_type;
300 
301 	unsigned long flags;
302 #define BNX2FC_FLAG_SESSION_READY	0x1
303 #define BNX2FC_FLAG_OFFLOADED		0x2
304 #define BNX2FC_FLAG_DISABLED		0x3
305 #define BNX2FC_FLAG_DESTROYED		0x4
306 #define BNX2FC_FLAG_OFLD_REQ_CMPL	0x5
307 #define BNX2FC_FLAG_CTX_ALLOC_FAILURE	0x6
308 #define BNX2FC_FLAG_UPLD_REQ_COMPL	0x7
309 #define BNX2FC_FLAG_DISABLE_FAILED	0x9
310 #define BNX2FC_FLAG_ENABLED		0xa
311 
312 	u8 src_addr[ETH_ALEN];
313 	u32 max_sqes;
314 	u32 max_rqes;
315 	u32 max_cqes;
316 	atomic_t free_sqes;
317 
318 	struct b577xx_doorbell_set_prod sq_db;
319 	struct b577xx_fcoe_rx_doorbell rx_db;
320 
321 	struct fcoe_sqe *sq;
322 	dma_addr_t sq_dma;
323 	u16 sq_prod_idx;
324 	u8 sq_curr_toggle_bit;
325 	u32 sq_mem_size;
326 
327 	struct fcoe_cqe *cq;
328 	dma_addr_t cq_dma;
329 	u16 cq_cons_idx;
330 	u8 cq_curr_toggle_bit;
331 	u32 cq_mem_size;
332 
333 	void *rq;
334 	dma_addr_t rq_dma;
335 	u32 rq_prod_idx;
336 	u32 rq_cons_idx;
337 	u32 rq_mem_size;
338 
339 	void *rq_pbl;
340 	dma_addr_t rq_pbl_dma;
341 	u32 rq_pbl_size;
342 
343 	struct fcoe_xfrqe *xferq;
344 	dma_addr_t xferq_dma;
345 	u32 xferq_mem_size;
346 
347 	struct fcoe_confqe *confq;
348 	dma_addr_t confq_dma;
349 	u32 confq_mem_size;
350 
351 	void *confq_pbl;
352 	dma_addr_t confq_pbl_dma;
353 	u32 confq_pbl_size;
354 
355 	struct fcoe_conn_db *conn_db;
356 	dma_addr_t conn_db_dma;
357 	u32 conn_db_mem_size;
358 
359 	struct fcoe_sqe *lcq;
360 	dma_addr_t lcq_dma;
361 	u32 lcq_mem_size;
362 
363 	void *ofld_req[4];
364 	dma_addr_t ofld_req_dma[4];
365 	void *enbl_req;
366 	dma_addr_t enbl_req_dma;
367 
368 	spinlock_t tgt_lock;
369 	spinlock_t cq_lock;
370 	atomic_t num_active_ios;
371 	u32 flush_in_prog;
372 	unsigned long timestamp;
373 	unsigned long retry_delay_timestamp;
374 	struct list_head free_task_list;
375 	struct bnx2fc_cmd *pending_queue[BNX2FC_SQ_WQES_MAX+1];
376 	struct list_head active_cmd_queue;
377 	struct list_head els_queue;
378 	struct list_head io_retire_queue;
379 	struct list_head active_tm_queue;
380 
381 	struct timer_list ofld_timer;
382 	wait_queue_head_t ofld_wait;
383 
384 	struct timer_list upld_timer;
385 	wait_queue_head_t upld_wait;
386 };
387 
388 struct bnx2fc_mp_req {
389 	u8 tm_flags;
390 
391 	u32 req_len;
392 	void *req_buf;
393 	dma_addr_t req_buf_dma;
394 	struct fcoe_bd_ctx *mp_req_bd;
395 	dma_addr_t mp_req_bd_dma;
396 	struct fc_frame_header req_fc_hdr;
397 
398 	u32 resp_len;
399 	void *resp_buf;
400 	dma_addr_t resp_buf_dma;
401 	struct fcoe_bd_ctx *mp_resp_bd;
402 	dma_addr_t mp_resp_bd_dma;
403 	struct fc_frame_header resp_fc_hdr;
404 };
405 
406 struct bnx2fc_els_cb_arg {
407 	struct bnx2fc_cmd *aborted_io_req;
408 	struct bnx2fc_cmd *io_req;
409 	u16 l2_oxid;
410 	u32 offset;
411 	enum fc_rctl r_ctl;
412 };
413 
414 /* bnx2fc command structure */
415 struct bnx2fc_cmd {
416 	struct list_head link;
417 	u8 on_active_queue;
418 	u8 on_tmf_queue;
419 	u8 cmd_type;
420 #define BNX2FC_SCSI_CMD		1
421 #define BNX2FC_TASK_MGMT_CMD		2
422 #define BNX2FC_ABTS			3
423 #define BNX2FC_ELS			4
424 #define BNX2FC_CLEANUP			5
425 #define BNX2FC_SEQ_CLEANUP		6
426 	u8 io_req_flags;
427 	struct kref refcount;
428 	struct fcoe_port *port;
429 	struct bnx2fc_rport *tgt;
430 	struct scsi_cmnd *sc_cmd;
431 	struct bnx2fc_cmd_mgr *cmd_mgr;
432 	struct bnx2fc_mp_req mp_req;
433 	void (*cb_func)(struct bnx2fc_els_cb_arg *cb_arg);
434 	struct bnx2fc_els_cb_arg *cb_arg;
435 	struct delayed_work timeout_work; /* timer for ULP timeouts */
436 	struct completion abts_done;
437 	struct completion cleanup_done;
438 	int wait_for_abts_comp;
439 	int wait_for_cleanup_comp;
440 	u16 xid;
441 	struct fcoe_err_report_entry err_entry;
442 	struct fcoe_task_ctx_entry *task;
443 	struct io_bdt *bd_tbl;
444 	struct fcp_rsp *rsp;
445 	size_t data_xfer_len;
446 	unsigned long req_flags;
447 #define BNX2FC_FLAG_ISSUE_RRQ		0x1
448 #define BNX2FC_FLAG_ISSUE_ABTS		0x2
449 #define BNX2FC_FLAG_ABTS_DONE		0x3
450 #define BNX2FC_FLAG_TM_COMPL		0x4
451 #define BNX2FC_FLAG_TM_TIMEOUT		0x5
452 #define BNX2FC_FLAG_IO_CLEANUP		0x6
453 #define BNX2FC_FLAG_RETIRE_OXID		0x7
454 #define	BNX2FC_FLAG_EH_ABORT		0x8
455 #define BNX2FC_FLAG_IO_COMPL		0x9
456 #define BNX2FC_FLAG_ELS_DONE		0xa
457 #define BNX2FC_FLAG_ELS_TIMEOUT		0xb
458 #define BNX2FC_FLAG_CMD_LOST		0xc
459 #define BNX2FC_FLAG_SRR_SENT		0xd
460 #define BNX2FC_FLAG_ISSUE_CLEANUP_REQ	0xe
461 	u8 rec_retry;
462 	u8 srr_retry;
463 	u32 srr_offset;
464 	u8 srr_rctl;
465 	u32 fcp_resid;
466 	u32 fcp_rsp_len;
467 	u32 fcp_sns_len;
468 	u8 cdb_status; /* SCSI IO status */
469 	u8 fcp_status; /* FCP IO status */
470 	u8 fcp_rsp_code;
471 	u8 scsi_comp_flags;
472 };
473 
474 struct io_bdt {
475 	struct bnx2fc_cmd *io_req;
476 	struct fcoe_bd_ctx *bd_tbl;
477 	dma_addr_t bd_tbl_dma;
478 	u16 bd_valid;
479 };
480 
481 struct bnx2fc_work {
482 	struct list_head list;
483 	struct bnx2fc_rport *tgt;
484 	struct fcoe_task_ctx_entry *task;
485 	unsigned char rq_data[BNX2FC_RQ_BUF_SZ];
486 	u16 wqe;
487 	u8 num_rq;
488 };
489 struct bnx2fc_unsol_els {
490 	struct fc_lport *lport;
491 	struct fc_frame *fp;
492 	struct bnx2fc_hba *hba;
493 	struct work_struct unsol_els_work;
494 };
495 
496 
497 
498 struct bnx2fc_cmd *bnx2fc_cmd_alloc(struct bnx2fc_rport *tgt);
499 struct bnx2fc_cmd *bnx2fc_elstm_alloc(struct bnx2fc_rport *tgt, int type);
500 void bnx2fc_cmd_release(struct kref *ref);
501 int bnx2fc_queuecommand(struct Scsi_Host *host, struct scsi_cmnd *sc_cmd);
502 int bnx2fc_send_fw_fcoe_init_msg(struct bnx2fc_hba *hba);
503 int bnx2fc_send_fw_fcoe_destroy_msg(struct bnx2fc_hba *hba);
504 int bnx2fc_send_session_ofld_req(struct fcoe_port *port,
505 					struct bnx2fc_rport *tgt);
506 int bnx2fc_send_session_enable_req(struct fcoe_port *port,
507 					struct bnx2fc_rport *tgt);
508 int bnx2fc_send_session_disable_req(struct fcoe_port *port,
509 				    struct bnx2fc_rport *tgt);
510 int bnx2fc_send_session_destroy_req(struct bnx2fc_hba *hba,
511 					struct bnx2fc_rport *tgt);
512 int bnx2fc_map_doorbell(struct bnx2fc_rport *tgt);
513 void bnx2fc_indicate_kcqe(void *context, struct kcqe *kcq[],
514 					u32 num_cqe);
515 int bnx2fc_setup_task_ctx(struct bnx2fc_hba *hba);
516 void bnx2fc_free_task_ctx(struct bnx2fc_hba *hba);
517 int bnx2fc_setup_fw_resc(struct bnx2fc_hba *hba);
518 void bnx2fc_free_fw_resc(struct bnx2fc_hba *hba);
519 struct bnx2fc_cmd_mgr *bnx2fc_cmd_mgr_alloc(struct bnx2fc_hba *hba);
520 void bnx2fc_cmd_mgr_free(struct bnx2fc_cmd_mgr *cmgr);
521 void bnx2fc_get_link_state(struct bnx2fc_hba *hba);
522 char *bnx2fc_get_next_rqe(struct bnx2fc_rport *tgt, u8 num_items);
523 void bnx2fc_return_rqe(struct bnx2fc_rport *tgt, u8 num_items);
524 int bnx2fc_get_paged_crc_eof(struct sk_buff *skb, int tlen);
525 int bnx2fc_send_rrq(struct bnx2fc_cmd *aborted_io_req);
526 int bnx2fc_send_adisc(struct bnx2fc_rport *tgt, struct fc_frame *fp);
527 int bnx2fc_send_logo(struct bnx2fc_rport *tgt, struct fc_frame *fp);
528 int bnx2fc_send_rls(struct bnx2fc_rport *tgt, struct fc_frame *fp);
529 int bnx2fc_initiate_cleanup(struct bnx2fc_cmd *io_req);
530 int bnx2fc_initiate_abts(struct bnx2fc_cmd *io_req);
531 void bnx2fc_cmd_timer_set(struct bnx2fc_cmd *io_req,
532 			  unsigned int timer_msec);
533 int bnx2fc_init_mp_req(struct bnx2fc_cmd *io_req);
534 void bnx2fc_init_cleanup_task(struct bnx2fc_cmd *io_req,
535 			      struct fcoe_task_ctx_entry *task,
536 			      u16 orig_xid);
537 void bnx2fc_init_seq_cleanup_task(struct bnx2fc_cmd *seq_clnup_req,
538 				  struct fcoe_task_ctx_entry *task,
539 				  struct bnx2fc_cmd *orig_io_req,
540 				  u32 offset);
541 void bnx2fc_init_mp_task(struct bnx2fc_cmd *io_req,
542 			 struct fcoe_task_ctx_entry *task);
543 void bnx2fc_init_task(struct bnx2fc_cmd *io_req,
544 			     struct fcoe_task_ctx_entry *task);
545 void bnx2fc_add_2_sq(struct bnx2fc_rport *tgt, u16 xid);
546 void bnx2fc_ring_doorbell(struct bnx2fc_rport *tgt);
547 int bnx2fc_eh_abort(struct scsi_cmnd *sc_cmd);
548 int bnx2fc_eh_target_reset(struct scsi_cmnd *sc_cmd);
549 int bnx2fc_eh_device_reset(struct scsi_cmnd *sc_cmd);
550 void bnx2fc_rport_event_handler(struct fc_lport *lport,
551 				struct fc_rport_priv *rport,
552 				enum fc_rport_event event);
553 void bnx2fc_process_scsi_cmd_compl(struct bnx2fc_cmd *io_req,
554 				   struct fcoe_task_ctx_entry *task,
555 				   u8 num_rq, unsigned char *rq_data);
556 void bnx2fc_process_cleanup_compl(struct bnx2fc_cmd *io_req,
557 			       struct fcoe_task_ctx_entry *task,
558 			       u8 num_rq);
559 void bnx2fc_process_abts_compl(struct bnx2fc_cmd *io_req,
560 			       struct fcoe_task_ctx_entry *task,
561 			       u8 num_rq);
562 void bnx2fc_process_tm_compl(struct bnx2fc_cmd *io_req,
563 			     struct fcoe_task_ctx_entry *task,
564 			     u8 num_rq, unsigned char *rq_data);
565 void bnx2fc_process_els_compl(struct bnx2fc_cmd *els_req,
566 			      struct fcoe_task_ctx_entry *task,
567 			      u8 num_rq);
568 void bnx2fc_build_fcp_cmnd(struct bnx2fc_cmd *io_req,
569 			   struct fcp_cmnd *fcp_cmnd);
570 
571 
572 
573 void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt);
574 struct fc_seq *bnx2fc_elsct_send(struct fc_lport *lport, u32 did,
575 				      struct fc_frame *fp, unsigned int op,
576 				      void (*resp)(struct fc_seq *,
577 						   struct fc_frame *,
578 						   void *),
579 				      void *arg, u32 timeout);
580 void bnx2fc_arm_cq(struct bnx2fc_rport *tgt);
581 int bnx2fc_process_new_cqes(struct bnx2fc_rport *tgt);
582 void bnx2fc_process_cq_compl(struct bnx2fc_rport *tgt, u16 wqe,
583 			     unsigned char *rq_data, u8 num_rq,
584 			     struct fcoe_task_ctx_entry *task);
585 struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
586 					     u32 port_id);
587 void bnx2fc_process_l2_frame_compl(struct bnx2fc_rport *tgt,
588 				   unsigned char *buf,
589 				   u32 frame_len, u16 l2_oxid);
590 int bnx2fc_send_stat_req(struct bnx2fc_hba *hba);
591 int bnx2fc_post_io_req(struct bnx2fc_rport *tgt, struct bnx2fc_cmd *io_req);
592 int bnx2fc_send_rec(struct bnx2fc_cmd *orig_io_req);
593 int bnx2fc_send_srr(struct bnx2fc_cmd *orig_io_req, u32 offset, u8 r_ctl);
594 void bnx2fc_process_seq_cleanup_compl(struct bnx2fc_cmd *seq_clnup_req,
595 				      struct fcoe_task_ctx_entry *task,
596 				      u8 rx_state);
597 int bnx2fc_initiate_seq_cleanup(struct bnx2fc_cmd *orig_io_req, u32 offset,
598 				enum fc_rctl r_ctl);
599 
600 
601 #include "bnx2fc_debug.h"
602 
603 #endif
604