summaryrefslogtreecommitdiff
path: root/drivers/scsi/lpfc/lpfc_mem.c
diff options
context:
space:
mode:
authorJames Smart <James.Smart@Emulex.Com>2007-06-18 04:56:36 +0400
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-06-18 07:05:45 +0400
commit2e0fef85e098f6794956b8b80b111179fbb4cbb7 (patch)
treef632090be67f95e9a637eeb044938ba1591e848f /drivers/scsi/lpfc/lpfc_mem.c
parent4c2baaaf2ba4875d1d2d59b3b3e1216d3277b17a (diff)
downloadlinux-2e0fef85e098f6794956b8b80b111179fbb4cbb7.tar.xz
[SCSI] lpfc: NPIV: split ports
The driver is reorganized to separate the handling of the adapter from the handling of the FC port. Adapter handling includes submissions of command requests, receiving responses, and managing adapter resources. The FC port includes the discovery engine, login handling, and the mapping of a Scsi_Host on the "port". Although not a large functional change, as it touches core structures and functions, resulting in a large text delta. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
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 ec3bbbde6f7a..3aa1dff15446 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;
+}