1 /* bnx2fc_tgt.c: Broadcom NetXtreme II Linux FCoE offload driver.
2 * Handles operations such as session offload/upload etc, and manages
3 * session resources such as connection id and qp resources.
5 * Copyright (c) 2008 - 2010 Broadcom Corporation
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.
11 * Written by: Bhanu Prakash Gollapudi (bprakash@broadcom.com)
15 static void bnx2fc_upld_timer(unsigned long data);
16 static void bnx2fc_ofld_timer(unsigned long data);
17 static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
18 struct fcoe_port *port,
19 struct fc_rport_priv *rdata);
20 static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
21 struct bnx2fc_rport *tgt);
22 static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
23 struct bnx2fc_rport *tgt);
24 static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
25 struct bnx2fc_rport *tgt);
26 static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id);
28 static void bnx2fc_upld_timer(unsigned long data)
31 struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
33 BNX2FC_TGT_DBG(tgt, "upld_timer - Upload compl not received!!\n");
34 /* fake upload completion */
35 clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
36 set_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
37 wake_up_interruptible(&tgt->upld_wait);
40 static void bnx2fc_ofld_timer(unsigned long data)
43 struct bnx2fc_rport *tgt = (struct bnx2fc_rport *)data;
45 BNX2FC_TGT_DBG(tgt, "entered bnx2fc_ofld_timer\n");
46 /* NOTE: This function should never be called, as
47 * offload should never timeout
50 * If the timer has expired, this session is dead
51 * Clear offloaded flag and logout of this device.
52 * Since OFFLOADED flag is cleared, this case
53 * will be considered as offload error and the
54 * port will be logged off, and conn_id, session
55 * resources are freed up in bnx2fc_offload_session
57 clear_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags);
58 set_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
59 wake_up_interruptible(&tgt->ofld_wait);
62 static void bnx2fc_offload_session(struct fcoe_port *port,
63 struct bnx2fc_rport *tgt,
64 struct fc_rport_priv *rdata)
66 struct fc_lport *lport = rdata->local_port;
67 struct fc_rport *rport = rdata->rport;
68 struct bnx2fc_hba *hba = port->priv;
72 /* Initialize bnx2fc_rport */
73 /* NOTE: tgt is already bzero'd */
74 rval = bnx2fc_init_tgt(tgt, port, rdata);
76 printk(KERN_ERR PFX "Failed to allocate conn id for "
77 "port_id (%6x)\n", rport->port_id);
81 /* Allocate session resources */
82 rval = bnx2fc_alloc_session_resc(hba, tgt);
84 printk(KERN_ERR PFX "Failed to allocate resources\n");
89 * Initialize FCoE session offload process.
90 * Upon completion of offload process add
91 * rport to list of rports
94 clear_bit(BNX2FC_FLAG_OFLD_REQ_CMPL, &tgt->flags);
95 rval = bnx2fc_send_session_ofld_req(port, tgt);
97 printk(KERN_ERR PFX "ofld_req failed\n");
102 * wait for the session is offloaded and enabled. 3 Secs
103 * should be ample time for this process to complete.
105 setup_timer(&tgt->ofld_timer, bnx2fc_ofld_timer, (unsigned long)tgt);
106 mod_timer(&tgt->ofld_timer, jiffies + BNX2FC_FW_TIMEOUT);
108 wait_event_interruptible(tgt->ofld_wait,
110 BNX2FC_FLAG_OFLD_REQ_CMPL,
112 if (signal_pending(current))
113 flush_signals(current);
115 del_timer_sync(&tgt->ofld_timer);
117 if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
118 if (test_and_clear_bit(BNX2FC_FLAG_CTX_ALLOC_FAILURE,
120 BNX2FC_TGT_DBG(tgt, "ctx_alloc_failure, "
121 "retry ofld..%d\n", i++);
122 msleep_interruptible(1000);
131 if (bnx2fc_map_doorbell(tgt)) {
132 printk(KERN_ERR PFX "map doorbell failed - no mem\n");
133 /* upload will take care of cleaning up sess resc */
134 lport->tt.rport_logoff(rdata);
141 /* couldn't offload the session. log off from this rport */
142 BNX2FC_TGT_DBG(tgt, "bnx2fc_offload_session - offload error\n");
143 lport->tt.rport_logoff(rdata);
144 /* Free session resources */
145 bnx2fc_free_session_resc(hba, tgt);
146 if (tgt->fcoe_conn_id != -1)
147 bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
150 void bnx2fc_flush_active_ios(struct bnx2fc_rport *tgt)
152 struct bnx2fc_cmd *io_req;
153 struct list_head *list;
154 struct list_head *tmp;
157 BNX2FC_TGT_DBG(tgt, "Entered flush_active_ios - %d\n",
158 tgt->num_active_ios.counter);
160 spin_lock_bh(&tgt->tgt_lock);
161 tgt->flush_in_prog = 1;
163 list_for_each_safe(list, tmp, &tgt->active_cmd_queue) {
165 io_req = (struct bnx2fc_cmd *)list;
166 list_del_init(&io_req->link);
167 io_req->on_active_queue = 0;
168 BNX2FC_IO_DBG(io_req, "cmd_queue cleanup\n");
170 if (cancel_delayed_work(&io_req->timeout_work)) {
171 if (test_and_clear_bit(BNX2FC_FLAG_EH_ABORT,
172 &io_req->req_flags)) {
173 /* Handle eh_abort timeout */
174 BNX2FC_IO_DBG(io_req, "eh_abort for IO "
176 complete(&io_req->tm_done);
178 kref_put(&io_req->refcount,
179 bnx2fc_cmd_release); /* drop timer hold */
182 set_bit(BNX2FC_FLAG_IO_COMPL, &io_req->req_flags);
183 set_bit(BNX2FC_FLAG_IO_CLEANUP, &io_req->req_flags);
184 rc = bnx2fc_initiate_cleanup(io_req);
188 list_for_each_safe(list, tmp, &tgt->els_queue) {
190 io_req = (struct bnx2fc_cmd *)list;
191 list_del_init(&io_req->link);
192 io_req->on_active_queue = 0;
194 BNX2FC_IO_DBG(io_req, "els_queue cleanup\n");
196 if (cancel_delayed_work(&io_req->timeout_work))
197 kref_put(&io_req->refcount,
198 bnx2fc_cmd_release); /* drop timer hold */
200 if ((io_req->cb_func) && (io_req->cb_arg)) {
201 io_req->cb_func(io_req->cb_arg);
202 io_req->cb_arg = NULL;
205 rc = bnx2fc_initiate_cleanup(io_req);
209 list_for_each_safe(list, tmp, &tgt->io_retire_queue) {
211 io_req = (struct bnx2fc_cmd *)list;
212 list_del_init(&io_req->link);
214 BNX2FC_IO_DBG(io_req, "retire_queue flush\n");
216 if (cancel_delayed_work(&io_req->timeout_work))
217 kref_put(&io_req->refcount, bnx2fc_cmd_release);
219 clear_bit(BNX2FC_FLAG_ISSUE_RRQ, &io_req->req_flags);
222 BNX2FC_TGT_DBG(tgt, "IOs flushed = %d\n", i);
224 spin_unlock_bh(&tgt->tgt_lock);
225 /* wait for active_ios to go to 0 */
226 while ((tgt->num_active_ios.counter != 0) && (i++ < BNX2FC_WAIT_CNT))
228 if (tgt->num_active_ios.counter != 0)
229 printk(KERN_ERR PFX "CLEANUP on port 0x%x:"
230 " active_ios = %d\n",
231 tgt->rdata->ids.port_id, tgt->num_active_ios.counter);
232 spin_lock_bh(&tgt->tgt_lock);
233 tgt->flush_in_prog = 0;
234 spin_unlock_bh(&tgt->tgt_lock);
237 static void bnx2fc_upload_session(struct fcoe_port *port,
238 struct bnx2fc_rport *tgt)
240 struct bnx2fc_hba *hba = port->priv;
242 BNX2FC_TGT_DBG(tgt, "upload_session: active_ios = %d\n",
243 tgt->num_active_ios.counter);
246 * Called with hba->hba_mutex held.
247 * This is a blocking call
249 clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
250 bnx2fc_send_session_disable_req(port, tgt);
253 * wait for upload to complete. 3 Secs
254 * should be sufficient time for this process to complete.
256 setup_timer(&tgt->upld_timer, bnx2fc_upld_timer, (unsigned long)tgt);
257 mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
259 BNX2FC_TGT_DBG(tgt, "waiting for disable compl\n");
260 wait_event_interruptible(tgt->upld_wait,
262 BNX2FC_FLAG_UPLD_REQ_COMPL,
265 if (signal_pending(current))
266 flush_signals(current);
268 del_timer_sync(&tgt->upld_timer);
271 * traverse thru the active_q and tmf_q and cleanup
274 BNX2FC_TGT_DBG(tgt, "flush/upload - disable wait flags = 0x%lx\n",
276 bnx2fc_flush_active_ios(tgt);
278 /* Issue destroy KWQE */
279 if (test_bit(BNX2FC_FLAG_DISABLED, &tgt->flags)) {
280 BNX2FC_TGT_DBG(tgt, "send destroy req\n");
281 clear_bit(BNX2FC_FLAG_UPLD_REQ_COMPL, &tgt->flags);
282 bnx2fc_send_session_destroy_req(hba, tgt);
284 /* wait for destroy to complete */
285 setup_timer(&tgt->upld_timer,
286 bnx2fc_upld_timer, (unsigned long)tgt);
287 mod_timer(&tgt->upld_timer, jiffies + BNX2FC_FW_TIMEOUT);
289 wait_event_interruptible(tgt->upld_wait,
291 BNX2FC_FLAG_UPLD_REQ_COMPL,
294 if (!(test_bit(BNX2FC_FLAG_DESTROYED, &tgt->flags)))
295 printk(KERN_ERR PFX "ERROR!! destroy timed out\n");
297 BNX2FC_TGT_DBG(tgt, "destroy wait complete flags = 0x%lx\n",
299 if (signal_pending(current))
300 flush_signals(current);
302 del_timer_sync(&tgt->upld_timer);
305 printk(KERN_ERR PFX "ERROR!! DISABLE req timed out, destroy"
306 " not sent to FW\n");
308 /* Free session resources */
309 bnx2fc_free_session_resc(hba, tgt);
310 bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
313 static int bnx2fc_init_tgt(struct bnx2fc_rport *tgt,
314 struct fcoe_port *port,
315 struct fc_rport_priv *rdata)
318 struct fc_rport *rport = rdata->rport;
319 struct bnx2fc_hba *hba = port->priv;
320 struct b577xx_doorbell_set_prod *sq_db = &tgt->sq_db;
321 struct b577xx_fcoe_rx_doorbell *rx_db = &tgt->rx_db;
327 if (hba->num_ofld_sess >= BNX2FC_NUM_MAX_SESS) {
328 BNX2FC_TGT_DBG(tgt, "exceeded max sessions. logoff this tgt\n");
329 tgt->fcoe_conn_id = -1;
333 tgt->fcoe_conn_id = bnx2fc_alloc_conn_id(hba, tgt);
334 if (tgt->fcoe_conn_id == -1)
337 BNX2FC_TGT_DBG(tgt, "init_tgt - conn_id = 0x%x\n", tgt->fcoe_conn_id);
339 tgt->max_sqes = BNX2FC_SQ_WQES_MAX;
340 tgt->max_rqes = BNX2FC_RQ_WQES_MAX;
341 tgt->max_cqes = BNX2FC_CQ_WQES_MAX;
342 atomic_set(&tgt->free_sqes, BNX2FC_SQ_WQES_MAX);
344 /* Initialize the toggle bit */
345 tgt->sq_curr_toggle_bit = 1;
346 tgt->cq_curr_toggle_bit = 1;
347 tgt->sq_prod_idx = 0;
348 tgt->cq_cons_idx = 0;
349 tgt->rq_prod_idx = 0x8000;
350 tgt->rq_cons_idx = 0;
351 atomic_set(&tgt->num_active_ios, 0);
353 /* initialize sq doorbell */
354 sq_db->header.header = B577XX_DOORBELL_HDR_DB_TYPE;
355 sq_db->header.header |= B577XX_FCOE_CONNECTION_TYPE <<
356 B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT;
357 /* initialize rx doorbell */
358 rx_db->hdr.header = ((0x1 << B577XX_DOORBELL_HDR_RX_SHIFT) |
359 (0x1 << B577XX_DOORBELL_HDR_DB_TYPE_SHIFT) |
360 (B577XX_FCOE_CONNECTION_TYPE <<
361 B577XX_DOORBELL_HDR_CONN_TYPE_SHIFT));
362 rx_db->params = (0x2 << B577XX_FCOE_RX_DOORBELL_NEGATIVE_ARM_SHIFT) |
363 (0x3 << B577XX_FCOE_RX_DOORBELL_OPCODE_SHIFT);
365 spin_lock_init(&tgt->tgt_lock);
366 spin_lock_init(&tgt->cq_lock);
368 /* Initialize active_cmd_queue list */
369 INIT_LIST_HEAD(&tgt->active_cmd_queue);
371 /* Initialize IO retire queue */
372 INIT_LIST_HEAD(&tgt->io_retire_queue);
374 INIT_LIST_HEAD(&tgt->els_queue);
376 /* Initialize active_tm_queue list */
377 INIT_LIST_HEAD(&tgt->active_tm_queue);
379 init_waitqueue_head(&tgt->ofld_wait);
380 init_waitqueue_head(&tgt->upld_wait);
386 * This event_callback is called after successful completion of libfc
387 * initiated target login. bnx2fc can proceed with initiating the session
390 void bnx2fc_rport_event_handler(struct fc_lport *lport,
391 struct fc_rport_priv *rdata,
392 enum fc_rport_event event)
394 struct fcoe_port *port = lport_priv(lport);
395 struct bnx2fc_hba *hba = port->priv;
396 struct fc_rport *rport = rdata->rport;
397 struct fc_rport_libfc_priv *rp;
398 struct bnx2fc_rport *tgt;
401 BNX2FC_HBA_DBG(lport, "rport_event_hdlr: event = %d, port_id = 0x%x\n",
402 event, rdata->ids.port_id);
406 printk(KERN_ALERT PFX "rport is NULL: ERROR!\n");
411 if (rport->port_id == FC_FID_DIR_SERV) {
413 * bnx2fc_rport structure doesn't exist for
415 * We should not come here, as lport will
416 * take care of fabric login
418 printk(KERN_ALERT PFX "%x - rport_event_handler ERROR\n",
423 if (rdata->spp_type != FC_TYPE_FCP) {
424 BNX2FC_HBA_DBG(lport, "not FCP type target."
425 " not offloading\n");
428 if (!(rdata->ids.roles & FC_RPORT_ROLE_FCP_TARGET)) {
429 BNX2FC_HBA_DBG(lport, "not FCP_TARGET"
430 " not offloading\n");
435 * Offlaod process is protected with hba mutex.
436 * Use the same mutex_lock for upload process too
438 mutex_lock(&hba->hba_mutex);
439 tgt = (struct bnx2fc_rport *)&rp[1];
441 /* This can happen when ADISC finds the same target */
442 if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
443 BNX2FC_TGT_DBG(tgt, "already offloaded\n");
444 mutex_unlock(&hba->hba_mutex);
449 * Offload the session. This is a blocking call, and will
450 * wait until the session is offloaded.
452 bnx2fc_offload_session(port, tgt, rdata);
454 BNX2FC_TGT_DBG(tgt, "OFFLOAD num_ofld_sess = %d\n",
457 if (test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags)) {
459 * Session is offloaded and enabled. Map
460 * doorbell register for this target
462 BNX2FC_TGT_DBG(tgt, "sess offloaded\n");
463 /* This counter is protected with hba mutex */
464 hba->num_ofld_sess++;
466 set_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
469 * Offload or enable would have failed.
470 * In offload/enable completion path, the
471 * rport would have already been removed
473 BNX2FC_TGT_DBG(tgt, "Port is being logged off as "
474 "offloaded flag not set\n");
476 mutex_unlock(&hba->hba_mutex);
479 case RPORT_EV_FAILED:
481 port_id = rdata->ids.port_id;
482 if (port_id == FC_FID_DIR_SERV)
486 printk(KERN_ALERT PFX "%x - rport not created Yet!!\n",
491 mutex_lock(&hba->hba_mutex);
493 * Perform session upload. Note that rdata->peers is already
494 * removed from disc->rports list before we get this event.
496 tgt = (struct bnx2fc_rport *)&rp[1];
498 if (!(test_bit(BNX2FC_FLAG_OFFLOADED, &tgt->flags))) {
499 mutex_unlock(&hba->hba_mutex);
502 clear_bit(BNX2FC_FLAG_SESSION_READY, &tgt->flags);
504 bnx2fc_upload_session(port, tgt);
505 hba->num_ofld_sess--;
506 BNX2FC_TGT_DBG(tgt, "UPLOAD num_ofld_sess = %d\n",
509 * Try to wake up the linkdown wait thread. If num_ofld_sess
510 * is 0, the waiting therad wakes up
512 if ((hba->wait_for_link_down) &&
513 (hba->num_ofld_sess == 0)) {
514 wake_up_interruptible(&hba->shutdown_wait);
516 if (test_bit(BNX2FC_FLAG_EXPL_LOGO, &tgt->flags)) {
517 printk(KERN_ERR PFX "Relogin to the tgt\n");
518 mutex_lock(&lport->disc.disc_mutex);
519 lport->tt.rport_login(rdata);
520 mutex_unlock(&lport->disc.disc_mutex);
522 mutex_unlock(&hba->hba_mutex);
532 * bnx2fc_tgt_lookup() - Lookup a bnx2fc_rport by port_id
534 * @port: fcoe_port struct to lookup the target port on
535 * @port_id: The remote port ID to look up
537 struct bnx2fc_rport *bnx2fc_tgt_lookup(struct fcoe_port *port,
540 struct bnx2fc_hba *hba = port->priv;
541 struct bnx2fc_rport *tgt;
542 struct fc_rport_priv *rdata;
545 for (i = 0; i < BNX2FC_NUM_MAX_SESS; i++) {
546 tgt = hba->tgt_ofld_list[i];
547 if ((tgt) && (tgt->port == port)) {
549 if (rdata->ids.port_id == port_id) {
550 if (rdata->rp_state != RPORT_ST_DELETE) {
551 BNX2FC_TGT_DBG(tgt, "rport "
555 printk(KERN_ERR PFX "rport 0x%x "
556 "is in DELETED state\n",
568 * bnx2fc_alloc_conn_id - allocates FCOE Connection id
570 * @hba: pointer to adapter structure
571 * @tgt: pointer to bnx2fc_rport structure
573 static u32 bnx2fc_alloc_conn_id(struct bnx2fc_hba *hba,
574 struct bnx2fc_rport *tgt)
578 /* called with hba mutex held */
581 * tgt_ofld_list access is synchronized using
582 * both hba mutex and hba lock. Atleast hba mutex or
583 * hba lock needs to be held for read access.
586 spin_lock_bh(&hba->hba_lock);
587 next = hba->next_conn_id;
588 conn_id = hba->next_conn_id++;
589 if (hba->next_conn_id == BNX2FC_NUM_MAX_SESS)
590 hba->next_conn_id = 0;
592 while (hba->tgt_ofld_list[conn_id] != NULL) {
594 if (conn_id == BNX2FC_NUM_MAX_SESS)
597 if (conn_id == next) {
598 /* No free conn_ids are available */
599 spin_unlock_bh(&hba->hba_lock);
603 hba->tgt_ofld_list[conn_id] = tgt;
604 tgt->fcoe_conn_id = conn_id;
605 spin_unlock_bh(&hba->hba_lock);
609 static void bnx2fc_free_conn_id(struct bnx2fc_hba *hba, u32 conn_id)
611 /* called with hba mutex held */
612 spin_lock_bh(&hba->hba_lock);
613 hba->tgt_ofld_list[conn_id] = NULL;
614 hba->next_conn_id = conn_id;
615 spin_unlock_bh(&hba->hba_lock);
619 *bnx2fc_alloc_session_resc - Allocate qp resources for the session
622 static int bnx2fc_alloc_session_resc(struct bnx2fc_hba *hba,
623 struct bnx2fc_rport *tgt)
629 /* Allocate and map SQ */
630 tgt->sq_mem_size = tgt->max_sqes * BNX2FC_SQ_WQE_SIZE;
631 tgt->sq_mem_size = (tgt->sq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
633 tgt->sq = dma_alloc_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
634 &tgt->sq_dma, GFP_KERNEL);
636 printk(KERN_ALERT PFX "unable to allocate SQ memory %d\n",
638 goto mem_alloc_failure;
640 memset(tgt->sq, 0, tgt->sq_mem_size);
642 /* Allocate and map CQ */
643 tgt->cq_mem_size = tgt->max_cqes * BNX2FC_CQ_WQE_SIZE;
644 tgt->cq_mem_size = (tgt->cq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
646 tgt->cq = dma_alloc_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
647 &tgt->cq_dma, GFP_KERNEL);
649 printk(KERN_ALERT PFX "unable to allocate CQ memory %d\n",
651 goto mem_alloc_failure;
653 memset(tgt->cq, 0, tgt->cq_mem_size);
655 /* Allocate and map RQ and RQ PBL */
656 tgt->rq_mem_size = tgt->max_rqes * BNX2FC_RQ_WQE_SIZE;
657 tgt->rq_mem_size = (tgt->rq_mem_size + (PAGE_SIZE - 1)) & PAGE_MASK;
659 tgt->rq = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
660 &tgt->rq_dma, GFP_KERNEL);
662 printk(KERN_ALERT PFX "unable to allocate RQ memory %d\n",
664 goto mem_alloc_failure;
666 memset(tgt->rq, 0, tgt->rq_mem_size);
668 tgt->rq_pbl_size = (tgt->rq_mem_size / PAGE_SIZE) * sizeof(void *);
669 tgt->rq_pbl_size = (tgt->rq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
671 tgt->rq_pbl = dma_alloc_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
672 &tgt->rq_pbl_dma, GFP_KERNEL);
674 printk(KERN_ALERT PFX "unable to allocate RQ PBL %d\n",
676 goto mem_alloc_failure;
679 memset(tgt->rq_pbl, 0, tgt->rq_pbl_size);
680 num_pages = tgt->rq_mem_size / PAGE_SIZE;
682 pbl = (u32 *)tgt->rq_pbl;
684 while (num_pages--) {
687 *pbl = (u32)((u64)page >> 32);
692 /* Allocate and map XFERQ */
693 tgt->xferq_mem_size = tgt->max_sqes * BNX2FC_XFERQ_WQE_SIZE;
694 tgt->xferq_mem_size = (tgt->xferq_mem_size + (PAGE_SIZE - 1)) &
697 tgt->xferq = dma_alloc_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
698 &tgt->xferq_dma, GFP_KERNEL);
700 printk(KERN_ALERT PFX "unable to allocate XFERQ %d\n",
701 tgt->xferq_mem_size);
702 goto mem_alloc_failure;
704 memset(tgt->xferq, 0, tgt->xferq_mem_size);
706 /* Allocate and map CONFQ & CONFQ PBL */
707 tgt->confq_mem_size = tgt->max_sqes * BNX2FC_CONFQ_WQE_SIZE;
708 tgt->confq_mem_size = (tgt->confq_mem_size + (PAGE_SIZE - 1)) &
711 tgt->confq = dma_alloc_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
712 &tgt->confq_dma, GFP_KERNEL);
714 printk(KERN_ALERT PFX "unable to allocate CONFQ %d\n",
715 tgt->confq_mem_size);
716 goto mem_alloc_failure;
718 memset(tgt->confq, 0, tgt->confq_mem_size);
720 tgt->confq_pbl_size =
721 (tgt->confq_mem_size / PAGE_SIZE) * sizeof(void *);
722 tgt->confq_pbl_size =
723 (tgt->confq_pbl_size + (PAGE_SIZE - 1)) & PAGE_MASK;
725 tgt->confq_pbl = dma_alloc_coherent(&hba->pcidev->dev,
727 &tgt->confq_pbl_dma, GFP_KERNEL);
728 if (!tgt->confq_pbl) {
729 printk(KERN_ALERT PFX "unable to allocate CONFQ PBL %d\n",
730 tgt->confq_pbl_size);
731 goto mem_alloc_failure;
734 memset(tgt->confq_pbl, 0, tgt->confq_pbl_size);
735 num_pages = tgt->confq_mem_size / PAGE_SIZE;
736 page = tgt->confq_dma;
737 pbl = (u32 *)tgt->confq_pbl;
739 while (num_pages--) {
742 *pbl = (u32)((u64)page >> 32);
747 /* Allocate and map ConnDB */
748 tgt->conn_db_mem_size = sizeof(struct fcoe_conn_db);
750 tgt->conn_db = dma_alloc_coherent(&hba->pcidev->dev,
751 tgt->conn_db_mem_size,
752 &tgt->conn_db_dma, GFP_KERNEL);
754 printk(KERN_ALERT PFX "unable to allocate conn_db %d\n",
755 tgt->conn_db_mem_size);
756 goto mem_alloc_failure;
758 memset(tgt->conn_db, 0, tgt->conn_db_mem_size);
761 /* Allocate and map LCQ */
762 tgt->lcq_mem_size = (tgt->max_sqes + 8) * BNX2FC_SQ_WQE_SIZE;
763 tgt->lcq_mem_size = (tgt->lcq_mem_size + (PAGE_SIZE - 1)) &
766 tgt->lcq = dma_alloc_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
767 &tgt->lcq_dma, GFP_KERNEL);
770 printk(KERN_ALERT PFX "unable to allocate lcq %d\n",
772 goto mem_alloc_failure;
774 memset(tgt->lcq, 0, tgt->lcq_mem_size);
776 tgt->conn_db->rq_prod = 0x8000;
781 bnx2fc_free_session_resc(hba, tgt);
782 bnx2fc_free_conn_id(hba, tgt->fcoe_conn_id);
787 * bnx2i_free_session_resc - free qp resources for the session
789 * @hba: adapter structure pointer
790 * @tgt: bnx2fc_rport structure pointer
792 * Free QP resources - SQ/RQ/CQ/XFERQ memory and PBL
794 static void bnx2fc_free_session_resc(struct bnx2fc_hba *hba,
795 struct bnx2fc_rport *tgt)
797 BNX2FC_TGT_DBG(tgt, "Freeing up session resources\n");
800 iounmap(tgt->ctx_base);
801 tgt->ctx_base = NULL;
804 spin_lock_bh(&tgt->cq_lock);
807 dma_free_coherent(&hba->pcidev->dev, tgt->lcq_mem_size,
808 tgt->lcq, tgt->lcq_dma);
813 dma_free_coherent(&hba->pcidev->dev, tgt->conn_db_mem_size,
814 tgt->conn_db, tgt->conn_db_dma);
817 /* Free confq and confq pbl */
818 if (tgt->confq_pbl) {
819 dma_free_coherent(&hba->pcidev->dev, tgt->confq_pbl_size,
820 tgt->confq_pbl, tgt->confq_pbl_dma);
821 tgt->confq_pbl = NULL;
824 dma_free_coherent(&hba->pcidev->dev, tgt->confq_mem_size,
825 tgt->confq, tgt->confq_dma);
830 dma_free_coherent(&hba->pcidev->dev, tgt->xferq_mem_size,
831 tgt->xferq, tgt->xferq_dma);
834 /* Free RQ PBL and RQ */
836 dma_free_coherent(&hba->pcidev->dev, tgt->rq_pbl_size,
837 tgt->rq_pbl, tgt->rq_pbl_dma);
841 dma_free_coherent(&hba->pcidev->dev, tgt->rq_mem_size,
842 tgt->rq, tgt->rq_dma);
847 dma_free_coherent(&hba->pcidev->dev, tgt->cq_mem_size,
848 tgt->cq, tgt->cq_dma);
853 dma_free_coherent(&hba->pcidev->dev, tgt->sq_mem_size,
854 tgt->sq, tgt->sq_dma);
857 spin_unlock_bh(&tgt->cq_lock);