1 /*******************************************************************
2 * This file is part of the Emulex Linux Device Driver for *
3 * Fibre Channel Host Bus Adapters. *
4 * Copyright (C) 2004-2014 Emulex. All rights reserved. *
5 * EMULEX and SLI are trademarks of Emulex. *
7 * Portions Copyright (C) 2004-2005 Christoph Hellwig *
9 * This program is free software; you can redistribute it and/or *
10 * modify it under the terms of version 2 of the GNU General *
11 * Public License as published by the Free Software Foundation. *
12 * This program is distributed in the hope that it will be useful. *
13 * ALL EXPRESS OR IMPLIED CONDITIONS, REPRESENTATIONS AND *
14 * WARRANTIES, INCLUDING ANY IMPLIED WARRANTY OF MERCHANTABILITY, *
15 * FITNESS FOR A PARTICULAR PURPOSE, OR NON-INFRINGEMENT, ARE *
16 * DISCLAIMED, EXCEPT TO THE EXTENT THAT SUCH DISCLAIMERS ARE HELD *
17 * TO BE LEGALLY INVALID. See the GNU General Public License for *
18 * more details, a copy of which can be found in the file COPYING *
19 * included with this package. *
20 *******************************************************************/
22 #include <linux/mempool.h>
23 #include <linux/slab.h>
24 #include <linux/pci.h>
25 #include <linux/interrupt.h>
27 #include <scsi/scsi.h>
28 #include <scsi/scsi_device.h>
29 #include <scsi/scsi_transport_fc.h>
30 #include <scsi/fc/fc_fs.h>
32 #include <linux/nvme-fc-driver.h>
37 #include "lpfc_sli4.h"
39 #include "lpfc_disc.h"
41 #include "lpfc_scsi.h"
42 #include "lpfc_nvme.h"
43 #include "lpfc_nvmet.h"
44 #include "lpfc_crtn.h"
45 #include "lpfc_logmsg.h"
47 #define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
48 #define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
49 #define LPFC_DEVICE_DATA_POOL_SIZE 64 /* max elements in device data pool */
52 lpfc_mem_alloc_active_rrq_pool_s4(struct lpfc_hba
*phba
) {
54 int max_xri
= phba
->sli4_hba
.max_cfg_param
.max_xri
;
58 bytes
= ((BITS_PER_LONG
- 1 + max_xri
) / BITS_PER_LONG
) *
59 sizeof(unsigned long);
60 phba
->cfg_rrq_xri_bitmap_sz
= bytes
;
61 phba
->active_rrq_pool
= mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE
,
63 if (!phba
->active_rrq_pool
)
70 * lpfc_mem_alloc - create and allocate all PCI and memory pools
71 * @phba: HBA to allocate pools for
73 * Description: Creates and allocates PCI pools lpfc_sg_dma_buf_pool,
74 * lpfc_mbuf_pool, lpfc_hrb_pool. Creates and allocates kmalloc-backed mempools
75 * for LPFC_MBOXQ_t and lpfc_nodelist. Also allocates the VPI bitmask.
77 * Notes: Not interrupt-safe. Must be called with no locks held. If any
78 * allocation fails, frees all successfully allocated memory before returning.
82 * -ENOMEM on failure (if any memory allocations fail)
85 lpfc_mem_alloc(struct lpfc_hba
*phba
, int align
)
87 struct lpfc_dma_pool
*pool
= &phba
->lpfc_mbuf_safety_pool
;
90 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
91 /* Calculate alignment */
92 if (phba
->cfg_sg_dma_buf_size
< SLI4_PAGE_SIZE
)
93 i
= phba
->cfg_sg_dma_buf_size
;
97 phba
->lpfc_sg_dma_buf_pool
=
98 pci_pool_create("lpfc_sg_dma_buf_pool",
100 phba
->cfg_sg_dma_buf_size
,
102 if (!phba
->lpfc_sg_dma_buf_pool
)
106 phba
->lpfc_sg_dma_buf_pool
=
107 pci_pool_create("lpfc_sg_dma_buf_pool",
108 phba
->pcidev
, phba
->cfg_sg_dma_buf_size
,
111 if (!phba
->lpfc_sg_dma_buf_pool
)
115 phba
->lpfc_mbuf_pool
= pci_pool_create("lpfc_mbuf_pool", phba
->pcidev
,
118 if (!phba
->lpfc_mbuf_pool
)
119 goto fail_free_dma_buf_pool
;
121 pool
->elements
= kmalloc(sizeof(struct lpfc_dmabuf
) *
122 LPFC_MBUF_POOL_SIZE
, GFP_KERNEL
);
124 goto fail_free_lpfc_mbuf_pool
;
127 pool
->current_count
= 0;
128 for ( i
= 0; i
< LPFC_MBUF_POOL_SIZE
; i
++) {
129 pool
->elements
[i
].virt
= pci_pool_alloc(phba
->lpfc_mbuf_pool
,
130 GFP_KERNEL
, &pool
->elements
[i
].phys
);
131 if (!pool
->elements
[i
].virt
)
132 goto fail_free_mbuf_pool
;
134 pool
->current_count
++;
137 phba
->mbox_mem_pool
= mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE
,
138 sizeof(LPFC_MBOXQ_t
));
139 if (!phba
->mbox_mem_pool
)
140 goto fail_free_mbuf_pool
;
142 phba
->nlp_mem_pool
= mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE
,
143 sizeof(struct lpfc_nodelist
));
144 if (!phba
->nlp_mem_pool
)
145 goto fail_free_mbox_pool
;
147 if (phba
->sli_rev
== LPFC_SLI_REV4
) {
149 mempool_create_kmalloc_pool(LPFC_MEM_POOL_SIZE
,
150 sizeof(struct lpfc_node_rrq
));
152 goto fail_free_nlp_mem_pool
;
153 phba
->lpfc_hrb_pool
= pci_pool_create("lpfc_hrb_pool",
155 LPFC_HDR_BUF_SIZE
, align
, 0);
156 if (!phba
->lpfc_hrb_pool
)
157 goto fail_free_rrq_mem_pool
;
159 phba
->lpfc_drb_pool
= pci_pool_create("lpfc_drb_pool",
161 LPFC_DATA_BUF_SIZE
, align
, 0);
162 if (!phba
->lpfc_drb_pool
)
163 goto fail_free_hrb_pool
;
164 phba
->lpfc_hbq_pool
= NULL
;
166 phba
->lpfc_hbq_pool
= pci_pool_create("lpfc_hbq_pool",
167 phba
->pcidev
, LPFC_BPL_SIZE
, align
, 0);
168 if (!phba
->lpfc_hbq_pool
)
169 goto fail_free_nlp_mem_pool
;
170 phba
->lpfc_hrb_pool
= NULL
;
171 phba
->lpfc_drb_pool
= NULL
;
174 if (phba
->cfg_EnableXLane
) {
175 phba
->device_data_mem_pool
= mempool_create_kmalloc_pool(
176 LPFC_DEVICE_DATA_POOL_SIZE
,
177 sizeof(struct lpfc_device_data
));
178 if (!phba
->device_data_mem_pool
)
179 goto fail_free_drb_pool
;
181 phba
->device_data_mem_pool
= NULL
;
186 pci_pool_destroy(phba
->lpfc_drb_pool
);
187 phba
->lpfc_drb_pool
= NULL
;
189 pci_pool_destroy(phba
->lpfc_hrb_pool
);
190 phba
->lpfc_hrb_pool
= NULL
;
191 fail_free_rrq_mem_pool
:
192 mempool_destroy(phba
->rrq_pool
);
193 phba
->rrq_pool
= NULL
;
194 fail_free_nlp_mem_pool
:
195 mempool_destroy(phba
->nlp_mem_pool
);
196 phba
->nlp_mem_pool
= NULL
;
198 mempool_destroy(phba
->mbox_mem_pool
);
199 phba
->mbox_mem_pool
= NULL
;
202 pci_pool_free(phba
->lpfc_mbuf_pool
, pool
->elements
[i
].virt
,
203 pool
->elements
[i
].phys
);
204 kfree(pool
->elements
);
205 fail_free_lpfc_mbuf_pool
:
206 pci_pool_destroy(phba
->lpfc_mbuf_pool
);
207 phba
->lpfc_mbuf_pool
= NULL
;
208 fail_free_dma_buf_pool
:
209 pci_pool_destroy(phba
->lpfc_sg_dma_buf_pool
);
210 phba
->lpfc_sg_dma_buf_pool
= NULL
;
216 * lpfc_mem_free - Frees memory allocated by lpfc_mem_alloc
217 * @phba: HBA to free memory for
219 * Description: Free the memory allocated by lpfc_mem_alloc routine. This
220 * routine is a the counterpart of lpfc_mem_alloc.
225 lpfc_mem_free(struct lpfc_hba
*phba
)
228 struct lpfc_dma_pool
*pool
= &phba
->lpfc_mbuf_safety_pool
;
229 struct lpfc_device_data
*device_data
;
232 lpfc_sli_hbqbuf_free_all(phba
);
233 if (phba
->lpfc_drb_pool
)
234 pci_pool_destroy(phba
->lpfc_drb_pool
);
235 phba
->lpfc_drb_pool
= NULL
;
236 if (phba
->lpfc_hrb_pool
)
237 pci_pool_destroy(phba
->lpfc_hrb_pool
);
238 phba
->lpfc_hrb_pool
= NULL
;
239 if (phba
->txrdy_payload_pool
)
240 pci_pool_destroy(phba
->txrdy_payload_pool
);
241 phba
->txrdy_payload_pool
= NULL
;
243 if (phba
->lpfc_hbq_pool
)
244 pci_pool_destroy(phba
->lpfc_hbq_pool
);
245 phba
->lpfc_hbq_pool
= NULL
;
248 mempool_destroy(phba
->rrq_pool
);
249 phba
->rrq_pool
= NULL
;
251 /* Free NLP memory pool */
252 mempool_destroy(phba
->nlp_mem_pool
);
253 phba
->nlp_mem_pool
= NULL
;
254 if (phba
->sli_rev
== LPFC_SLI_REV4
&& phba
->active_rrq_pool
) {
255 mempool_destroy(phba
->active_rrq_pool
);
256 phba
->active_rrq_pool
= NULL
;
259 /* Free mbox memory pool */
260 mempool_destroy(phba
->mbox_mem_pool
);
261 phba
->mbox_mem_pool
= NULL
;
263 /* Free MBUF memory pool */
264 for (i
= 0; i
< pool
->current_count
; i
++)
265 pci_pool_free(phba
->lpfc_mbuf_pool
, pool
->elements
[i
].virt
,
266 pool
->elements
[i
].phys
);
267 kfree(pool
->elements
);
269 pci_pool_destroy(phba
->lpfc_mbuf_pool
);
270 phba
->lpfc_mbuf_pool
= NULL
;
272 /* Free DMA buffer memory pool */
273 pci_pool_destroy(phba
->lpfc_sg_dma_buf_pool
);
274 phba
->lpfc_sg_dma_buf_pool
= NULL
;
276 /* Free Device Data memory pool */
277 if (phba
->device_data_mem_pool
) {
278 /* Ensure all objects have been returned to the pool */
279 while (!list_empty(&phba
->luns
)) {
280 device_data
= list_first_entry(&phba
->luns
,
281 struct lpfc_device_data
,
283 list_del(&device_data
->listentry
);
284 mempool_free(device_data
, phba
->device_data_mem_pool
);
286 mempool_destroy(phba
->device_data_mem_pool
);
288 phba
->device_data_mem_pool
= NULL
;
293 * lpfc_mem_free_all - Frees all PCI and driver memory
294 * @phba: HBA to free memory for
296 * Description: Free memory from PCI and driver memory pools and also those
297 * used : lpfc_sg_dma_buf_pool, lpfc_mbuf_pool, lpfc_hrb_pool. Frees
298 * kmalloc-backed mempools for LPFC_MBOXQ_t and lpfc_nodelist. Also frees
304 lpfc_mem_free_all(struct lpfc_hba
*phba
)
306 struct lpfc_sli
*psli
= &phba
->sli
;
307 LPFC_MBOXQ_t
*mbox
, *next_mbox
;
308 struct lpfc_dmabuf
*mp
;
310 /* Free memory used in mailbox queue back to mailbox memory pool */
311 list_for_each_entry_safe(mbox
, next_mbox
, &psli
->mboxq
, list
) {
312 mp
= (struct lpfc_dmabuf
*) (mbox
->context1
);
314 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
317 list_del(&mbox
->list
);
318 mempool_free(mbox
, phba
->mbox_mem_pool
);
320 /* Free memory used in mailbox cmpl list back to mailbox memory pool */
321 list_for_each_entry_safe(mbox
, next_mbox
, &psli
->mboxq_cmpl
, list
) {
322 mp
= (struct lpfc_dmabuf
*) (mbox
->context1
);
324 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
327 list_del(&mbox
->list
);
328 mempool_free(mbox
, phba
->mbox_mem_pool
);
330 /* Free the active mailbox command back to the mailbox memory pool */
331 spin_lock_irq(&phba
->hbalock
);
332 psli
->sli_flag
&= ~LPFC_SLI_MBOX_ACTIVE
;
333 spin_unlock_irq(&phba
->hbalock
);
334 if (psli
->mbox_active
) {
335 mbox
= psli
->mbox_active
;
336 mp
= (struct lpfc_dmabuf
*) (mbox
->context1
);
338 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
341 mempool_free(mbox
, phba
->mbox_mem_pool
);
342 psli
->mbox_active
= NULL
;
345 /* Free and destroy all the allocated memory pools */
348 /* Free the iocb lookup array */
349 kfree(psli
->iocbq_lookup
);
350 psli
->iocbq_lookup
= NULL
;
356 * lpfc_mbuf_alloc - Allocate an mbuf from the lpfc_mbuf_pool PCI pool
357 * @phba: HBA which owns the pool to allocate from
358 * @mem_flags: indicates if this is a priority (MEM_PRI) allocation
359 * @handle: used to return the DMA-mapped address of the mbuf
361 * Description: Allocates a DMA-mapped buffer from the lpfc_mbuf_pool PCI pool.
362 * Allocates from generic pci_pool_alloc function first and if that fails and
363 * mem_flags has MEM_PRI set (the only defined flag), returns an mbuf from the
366 * Notes: Not interrupt-safe. Must be called with no locks held. Takes
370 * pointer to the allocated mbuf on success
374 lpfc_mbuf_alloc(struct lpfc_hba
*phba
, int mem_flags
, dma_addr_t
*handle
)
376 struct lpfc_dma_pool
*pool
= &phba
->lpfc_mbuf_safety_pool
;
377 unsigned long iflags
;
380 ret
= pci_pool_alloc(phba
->lpfc_mbuf_pool
, GFP_KERNEL
, handle
);
382 spin_lock_irqsave(&phba
->hbalock
, iflags
);
383 if (!ret
&& (mem_flags
& MEM_PRI
) && pool
->current_count
) {
384 pool
->current_count
--;
385 ret
= pool
->elements
[pool
->current_count
].virt
;
386 *handle
= pool
->elements
[pool
->current_count
].phys
;
388 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
393 * __lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (locked)
394 * @phba: HBA which owns the pool to return to
395 * @virt: mbuf to free
396 * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
398 * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
399 * it is below its max_count, frees the mbuf otherwise.
401 * Notes: Must be called with phba->hbalock held to synchronize access to
402 * lpfc_mbuf_safety_pool.
407 __lpfc_mbuf_free(struct lpfc_hba
* phba
, void *virt
, dma_addr_t dma
)
409 struct lpfc_dma_pool
*pool
= &phba
->lpfc_mbuf_safety_pool
;
411 if (pool
->current_count
< pool
->max_count
) {
412 pool
->elements
[pool
->current_count
].virt
= virt
;
413 pool
->elements
[pool
->current_count
].phys
= dma
;
414 pool
->current_count
++;
416 pci_pool_free(phba
->lpfc_mbuf_pool
, virt
, dma
);
422 * lpfc_mbuf_free - Free an mbuf from the lpfc_mbuf_pool PCI pool (unlocked)
423 * @phba: HBA which owns the pool to return to
424 * @virt: mbuf to free
425 * @dma: the DMA-mapped address of the lpfc_mbuf_pool to be freed
427 * Description: Returns an mbuf lpfc_mbuf_pool to the lpfc_mbuf_safety_pool if
428 * it is below its max_count, frees the mbuf otherwise.
430 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
435 lpfc_mbuf_free(struct lpfc_hba
* phba
, void *virt
, dma_addr_t dma
)
437 unsigned long iflags
;
439 spin_lock_irqsave(&phba
->hbalock
, iflags
);
440 __lpfc_mbuf_free(phba
, virt
, dma
);
441 spin_unlock_irqrestore(&phba
->hbalock
, iflags
);
446 * lpfc_nvmet_buf_alloc - Allocate an nvmet_buf from the
447 * lpfc_sg_dma_buf_pool PCI pool
448 * @phba: HBA which owns the pool to allocate from
449 * @mem_flags: indicates if this is a priority (MEM_PRI) allocation
450 * @handle: used to return the DMA-mapped address of the nvmet_buf
452 * Description: Allocates a DMA-mapped buffer from the lpfc_sg_dma_buf_pool
453 * PCI pool. Allocates from generic pci_pool_alloc function.
456 * pointer to the allocated nvmet_buf on success
460 lpfc_nvmet_buf_alloc(struct lpfc_hba
*phba
, int mem_flags
, dma_addr_t
*handle
)
464 ret
= pci_pool_alloc(phba
->lpfc_sg_dma_buf_pool
, GFP_KERNEL
, handle
);
469 * lpfc_nvmet_buf_free - Free an nvmet_buf from the lpfc_sg_dma_buf_pool
471 * @phba: HBA which owns the pool to return to
472 * @virt: nvmet_buf to free
473 * @dma: the DMA-mapped address of the lpfc_sg_dma_buf_pool to be freed
478 lpfc_nvmet_buf_free(struct lpfc_hba
*phba
, void *virt
, dma_addr_t dma
)
480 pci_pool_free(phba
->lpfc_sg_dma_buf_pool
, virt
, dma
);
484 * lpfc_els_hbq_alloc - Allocate an HBQ buffer
485 * @phba: HBA to allocate HBQ buffer for
487 * Description: Allocates a DMA-mapped HBQ buffer from the lpfc_hrb_pool PCI
488 * pool along a non-DMA-mapped container for it.
490 * Notes: Not interrupt-safe. Must be called with no locks held.
493 * pointer to HBQ on success
497 lpfc_els_hbq_alloc(struct lpfc_hba
*phba
)
499 struct hbq_dmabuf
*hbqbp
;
501 hbqbp
= kzalloc(sizeof(struct hbq_dmabuf
), GFP_KERNEL
);
505 hbqbp
->dbuf
.virt
= pci_pool_alloc(phba
->lpfc_hbq_pool
, GFP_KERNEL
,
507 if (!hbqbp
->dbuf
.virt
) {
511 hbqbp
->total_size
= LPFC_BPL_SIZE
;
516 * lpfc_els_hbq_free - Frees an HBQ buffer allocated with lpfc_els_hbq_alloc
517 * @phba: HBA buffer was allocated for
518 * @hbqbp: HBQ container returned by lpfc_els_hbq_alloc
520 * Description: Frees both the container and the DMA-mapped buffer returned by
521 * lpfc_els_hbq_alloc.
523 * Notes: Can be called with or without locks held.
528 lpfc_els_hbq_free(struct lpfc_hba
*phba
, struct hbq_dmabuf
*hbqbp
)
530 pci_pool_free(phba
->lpfc_hbq_pool
, hbqbp
->dbuf
.virt
, hbqbp
->dbuf
.phys
);
536 * lpfc_sli4_rb_alloc - Allocate an SLI4 Receive buffer
537 * @phba: HBA to allocate a receive buffer for
539 * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI
540 * pool along a non-DMA-mapped container for it.
542 * Notes: Not interrupt-safe. Must be called with no locks held.
545 * pointer to HBQ on success
549 lpfc_sli4_rb_alloc(struct lpfc_hba
*phba
)
551 struct hbq_dmabuf
*dma_buf
;
553 dma_buf
= kzalloc(sizeof(struct hbq_dmabuf
), GFP_KERNEL
);
557 dma_buf
->hbuf
.virt
= pci_pool_alloc(phba
->lpfc_hrb_pool
, GFP_KERNEL
,
558 &dma_buf
->hbuf
.phys
);
559 if (!dma_buf
->hbuf
.virt
) {
563 dma_buf
->dbuf
.virt
= pci_pool_alloc(phba
->lpfc_drb_pool
, GFP_KERNEL
,
564 &dma_buf
->dbuf
.phys
);
565 if (!dma_buf
->dbuf
.virt
) {
566 pci_pool_free(phba
->lpfc_hrb_pool
, dma_buf
->hbuf
.virt
,
571 dma_buf
->total_size
= LPFC_DATA_BUF_SIZE
;
576 * lpfc_sli4_rb_free - Frees a receive buffer
577 * @phba: HBA buffer was allocated for
578 * @dmab: DMA Buffer container returned by lpfc_sli4_hbq_alloc
580 * Description: Frees both the container and the DMA-mapped buffers returned by
581 * lpfc_sli4_rb_alloc.
583 * Notes: Can be called with or without locks held.
588 lpfc_sli4_rb_free(struct lpfc_hba
*phba
, struct hbq_dmabuf
*dmab
)
590 pci_pool_free(phba
->lpfc_hrb_pool
, dmab
->hbuf
.virt
, dmab
->hbuf
.phys
);
591 pci_pool_free(phba
->lpfc_drb_pool
, dmab
->dbuf
.virt
, dmab
->dbuf
.phys
);
596 * lpfc_sli4_nvmet_alloc - Allocate an SLI4 Receive buffer
597 * @phba: HBA to allocate a receive buffer for
599 * Description: Allocates a DMA-mapped receive buffer from the lpfc_hrb_pool PCI
600 * pool along a non-DMA-mapped container for it.
602 * Notes: Not interrupt-safe. Must be called with no locks held.
605 * pointer to HBQ on success
609 lpfc_sli4_nvmet_alloc(struct lpfc_hba
*phba
)
611 struct rqb_dmabuf
*dma_buf
;
612 struct lpfc_iocbq
*nvmewqe
;
613 union lpfc_wqe128
*wqe
;
615 dma_buf
= kzalloc(sizeof(struct rqb_dmabuf
), GFP_KERNEL
);
619 dma_buf
->hbuf
.virt
= pci_pool_alloc(phba
->lpfc_hrb_pool
, GFP_KERNEL
,
620 &dma_buf
->hbuf
.phys
);
621 if (!dma_buf
->hbuf
.virt
) {
625 dma_buf
->dbuf
.virt
= pci_pool_alloc(phba
->lpfc_drb_pool
, GFP_KERNEL
,
626 &dma_buf
->dbuf
.phys
);
627 if (!dma_buf
->dbuf
.virt
) {
628 pci_pool_free(phba
->lpfc_hrb_pool
, dma_buf
->hbuf
.virt
,
633 dma_buf
->total_size
= LPFC_DATA_BUF_SIZE
;
635 dma_buf
->context
= kzalloc(sizeof(struct lpfc_nvmet_rcv_ctx
),
637 if (!dma_buf
->context
) {
638 pci_pool_free(phba
->lpfc_drb_pool
, dma_buf
->dbuf
.virt
,
640 pci_pool_free(phba
->lpfc_hrb_pool
, dma_buf
->hbuf
.virt
,
646 dma_buf
->iocbq
= lpfc_sli_get_iocbq(phba
);
647 dma_buf
->iocbq
->iocb_flag
= LPFC_IO_NVMET
;
648 if (!dma_buf
->iocbq
) {
649 kfree(dma_buf
->context
);
650 pci_pool_free(phba
->lpfc_drb_pool
, dma_buf
->dbuf
.virt
,
652 pci_pool_free(phba
->lpfc_hrb_pool
, dma_buf
->hbuf
.virt
,
655 lpfc_printf_log(phba
, KERN_ERR
, LOG_NVME
,
656 "2621 Ran out of nvmet iocb/WQEs\n");
659 nvmewqe
= dma_buf
->iocbq
;
660 wqe
= (union lpfc_wqe128
*)&nvmewqe
->wqe
;
662 memset(wqe
, 0, sizeof(union lpfc_wqe
));
664 bf_set(wqe_ct
, &wqe
->generic
.wqe_com
, SLI4_CT_RPI
);
665 bf_set(wqe_class
, &wqe
->generic
.wqe_com
, CLASS3
);
666 bf_set(wqe_pu
, &wqe
->generic
.wqe_com
, 1);
668 bf_set(wqe_nvme
, &wqe
->fcp_tsend
.wqe_com
, 1);
669 bf_set(wqe_ebde_cnt
, &wqe
->generic
.wqe_com
, 0);
670 bf_set(wqe_qosd
, &wqe
->generic
.wqe_com
, 0);
672 dma_buf
->iocbq
->context1
= NULL
;
673 spin_lock(&phba
->sli4_hba
.sgl_list_lock
);
674 dma_buf
->sglq
= __lpfc_sli_get_nvmet_sglq(phba
, dma_buf
->iocbq
);
675 spin_unlock(&phba
->sli4_hba
.sgl_list_lock
);
676 if (!dma_buf
->sglq
) {
677 lpfc_sli_release_iocbq(phba
, dma_buf
->iocbq
);
678 kfree(dma_buf
->context
);
679 pci_pool_free(phba
->lpfc_drb_pool
, dma_buf
->dbuf
.virt
,
681 pci_pool_free(phba
->lpfc_hrb_pool
, dma_buf
->hbuf
.virt
,
684 lpfc_printf_log(phba
, KERN_ERR
, LOG_NVME
,
685 "6132 Ran out of nvmet XRIs\n");
692 * lpfc_sli4_nvmet_free - Frees a receive buffer
693 * @phba: HBA buffer was allocated for
694 * @dmab: DMA Buffer container returned by lpfc_sli4_rbq_alloc
696 * Description: Frees both the container and the DMA-mapped buffers returned by
697 * lpfc_sli4_nvmet_alloc.
699 * Notes: Can be called with or without locks held.
704 lpfc_sli4_nvmet_free(struct lpfc_hba
*phba
, struct rqb_dmabuf
*dmab
)
708 __lpfc_clear_active_sglq(phba
, dmab
->sglq
->sli4_lxritag
);
709 dmab
->sglq
->state
= SGL_FREED
;
710 dmab
->sglq
->ndlp
= NULL
;
712 spin_lock_irqsave(&phba
->sli4_hba
.sgl_list_lock
, flags
);
713 list_add_tail(&dmab
->sglq
->list
, &phba
->sli4_hba
.lpfc_nvmet_sgl_list
);
714 spin_unlock_irqrestore(&phba
->sli4_hba
.sgl_list_lock
, flags
);
716 lpfc_sli_release_iocbq(phba
, dmab
->iocbq
);
717 kfree(dmab
->context
);
718 pci_pool_free(phba
->lpfc_hrb_pool
, dmab
->hbuf
.virt
, dmab
->hbuf
.phys
);
719 pci_pool_free(phba
->lpfc_drb_pool
, dmab
->dbuf
.virt
, dmab
->dbuf
.phys
);
724 * lpfc_in_buf_free - Free a DMA buffer
725 * @phba: HBA buffer is associated with
726 * @mp: Buffer to free
728 * Description: Frees the given DMA buffer in the appropriate way given if the
729 * HBA is running in SLI3 mode with HBQs enabled.
731 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
736 lpfc_in_buf_free(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*mp
)
738 struct hbq_dmabuf
*hbq_entry
;
744 if (phba
->sli3_options
& LPFC_SLI3_HBQ_ENABLED
) {
745 hbq_entry
= container_of(mp
, struct hbq_dmabuf
, dbuf
);
746 /* Check whether HBQ is still in use */
747 spin_lock_irqsave(&phba
->hbalock
, flags
);
748 if (!phba
->hbq_in_use
) {
749 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
752 list_del(&hbq_entry
->dbuf
.list
);
753 if (hbq_entry
->tag
== -1) {
754 (phba
->hbqs
[LPFC_ELS_HBQ
].hbq_free_buffer
)
757 lpfc_sli_free_hbq(phba
, hbq_entry
);
759 spin_unlock_irqrestore(&phba
->hbalock
, flags
);
761 lpfc_mbuf_free(phba
, mp
->virt
, mp
->phys
);
768 * lpfc_rq_buf_free - Free a RQ DMA buffer
769 * @phba: HBA buffer is associated with
770 * @mp: Buffer to free
772 * Description: Frees the given DMA buffer in the appropriate way given by
773 * reposting it to its associated RQ so it can be reused.
775 * Notes: Takes phba->hbalock. Can be called with or without other locks held.
780 lpfc_rq_buf_free(struct lpfc_hba
*phba
, struct lpfc_dmabuf
*mp
)
782 struct lpfc_rqb
*rqbp
;
783 struct lpfc_rqe hrqe
;
784 struct lpfc_rqe drqe
;
785 struct rqb_dmabuf
*rqb_entry
;
792 rqb_entry
= container_of(mp
, struct rqb_dmabuf
, hbuf
);
793 rqbp
= rqb_entry
->hrq
->rqbp
;
795 spin_lock_irqsave(&phba
->hbalock
, flags
);
796 list_del(&rqb_entry
->hbuf
.list
);
797 hrqe
.address_lo
= putPaddrLow(rqb_entry
->hbuf
.phys
);
798 hrqe
.address_hi
= putPaddrHigh(rqb_entry
->hbuf
.phys
);
799 drqe
.address_lo
= putPaddrLow(rqb_entry
->dbuf
.phys
);
800 drqe
.address_hi
= putPaddrHigh(rqb_entry
->dbuf
.phys
);
801 rc
= lpfc_sli4_rq_put(rqb_entry
->hrq
, rqb_entry
->drq
, &hrqe
, &drqe
);
803 (rqbp
->rqb_free_buffer
)(phba
, rqb_entry
);
805 list_add_tail(&rqb_entry
->hbuf
.list
, &rqbp
->rqb_buffer_list
);
806 rqbp
->buffer_count
++;
809 spin_unlock_irqrestore(&phba
->hbalock
, flags
);