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path: root/drivers/scsi/lpfc/lpfc_mem.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_mem.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_mem.c31
1 files changed, 29 insertions, 2 deletions
diff --git a/drivers/scsi/lpfc/lpfc_mem.c b/drivers/scsi/lpfc/lpfc_mem.c
index ec3bbbde6f7..3aa1dff1544 100644
--- a/drivers/scsi/lpfc/lpfc_mem.c
+++ b/drivers/scsi/lpfc/lpfc_mem.c
@@ -1,7 +1,7 @@
/*******************************************************************
* This file is part of the Emulex Linux Device Driver for *
* Fibre Channel Host Bus Adapters. *
- * Copyright (C) 2004-2005 Emulex. All rights reserved. *
+ * Copyright (C) 2004-2006 Emulex. All rights reserved. *
* EMULEX and SLI are trademarks of Emulex. *
* www.emulex.com *
* Portions Copyright (C) 2004-2005 Christoph Hellwig *
@@ -38,6 +38,8 @@
#define LPFC_MBUF_POOL_SIZE 64 /* max elements in MBUF safety pool */
#define LPFC_MEM_POOL_SIZE 64 /* max elem in non-DMA safety pool */
+
+
int
lpfc_mem_alloc(struct lpfc_hba * phba)
{
@@ -84,6 +86,7 @@ lpfc_mem_alloc(struct lpfc_hba * phba)
fail_free_mbox_pool:
mempool_destroy(phba->mbox_mem_pool);
+ phba->mbox_mem_pool = NULL;
fail_free_mbuf_pool:
while (i--)
pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
@@ -91,8 +94,10 @@ lpfc_mem_alloc(struct lpfc_hba * phba)
kfree(pool->elements);
fail_free_lpfc_mbuf_pool:
pci_pool_destroy(phba->lpfc_mbuf_pool);
+ phba->lpfc_mbuf_pool = NULL;
fail_free_dma_buf_pool:
pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool);
+ phba->lpfc_scsi_dma_buf_pool = NULL;
fail:
return -ENOMEM;
}
@@ -106,6 +111,7 @@ lpfc_mem_free(struct lpfc_hba * phba)
struct lpfc_dmabuf *mp;
int i;
+ spin_lock_irq(&phba->hbalock);
list_for_each_entry_safe(mbox, next_mbox, &psli->mboxq, list) {
mp = (struct lpfc_dmabuf *) (mbox->context1);
if (mp) {
@@ -117,6 +123,7 @@ lpfc_mem_free(struct lpfc_hba * phba)
}
psli->sli_flag &= ~LPFC_SLI_MBOX_ACTIVE;
+ spin_unlock_irq(&phba->hbalock);
if (psli->mbox_active) {
mbox = psli->mbox_active;
mp = (struct lpfc_dmabuf *) (mbox->context1);
@@ -132,12 +139,18 @@ lpfc_mem_free(struct lpfc_hba * phba)
pci_pool_free(phba->lpfc_mbuf_pool, pool->elements[i].virt,
pool->elements[i].phys);
kfree(pool->elements);
+
mempool_destroy(phba->nlp_mem_pool);
mempool_destroy(phba->mbox_mem_pool);
pci_pool_destroy(phba->lpfc_scsi_dma_buf_pool);
pci_pool_destroy(phba->lpfc_mbuf_pool);
+ phba->nlp_mem_pool = NULL;
+ phba->mbox_mem_pool = NULL;
+ phba->lpfc_scsi_dma_buf_pool = NULL;
+ phba->lpfc_mbuf_pool = NULL;
+
/* Free the iocb lookup array */
kfree(psli->iocbq_lookup);
psli->iocbq_lookup = NULL;
@@ -148,20 +161,23 @@ void *
lpfc_mbuf_alloc(struct lpfc_hba *phba, int mem_flags, dma_addr_t *handle)
{
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
+ unsigned long iflags;
void *ret;
ret = pci_pool_alloc(phba->lpfc_mbuf_pool, GFP_KERNEL, handle);
+ spin_lock_irqsave(&phba->hbalock, iflags);
if (!ret && ( mem_flags & MEM_PRI) && pool->current_count) {
pool->current_count--;
ret = pool->elements[pool->current_count].virt;
*handle = pool->elements[pool->current_count].phys;
}
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
return ret;
}
void
-lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
+__lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
{
struct lpfc_dma_pool *pool = &phba->lpfc_mbuf_safety_pool;
@@ -174,3 +190,14 @@ lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
}
return;
}
+
+void
+lpfc_mbuf_free(struct lpfc_hba * phba, void *virt, dma_addr_t dma)
+{
+ unsigned long iflags;
+
+ spin_lock_irqsave(&phba->hbalock, iflags);
+ __lpfc_mbuf_free(phba, virt, dma);
+ spin_unlock_irqrestore(&phba->hbalock, iflags);
+ return;
+}