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authorJames Smart <James.Smart@Emulex.Com>2008-01-11 01:53:18 -0500
committerJames Bottomley <James.Bottomley@HansenPartnership.com>2008-01-23 11:29:23 -0600
commit9c2face68782d5b7a322df6aade0512b47d29f10 (patch)
treedff5c2066c1be6a3b7d83e6481d7ab3c2285ebd7 /drivers/scsi/lpfc/lpfc_ct.c
parent83108bd3826310def1e49330558467406c46b970 (diff)
[SCSI] lpfc 8.2.4 : Fix Unsolicited Data items
Fix Drivers Unsolicited CT command handling - we did not handle multiframe sequences well. Fix error due to delay in replenishing buffers for unsolicited data. Signed-off-by: James Smart <James.Smart@emulex.com> Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
Diffstat (limited to 'drivers/scsi/lpfc/lpfc_ct.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_ct.c92
1 files changed, 34 insertions, 58 deletions
diff --git a/drivers/scsi/lpfc/lpfc_ct.c b/drivers/scsi/lpfc/lpfc_ct.c
index 7a8b3b90af7..3759ae1dc5e 100644
--- a/drivers/scsi/lpfc/lpfc_ct.c
+++ b/drivers/scsi/lpfc/lpfc_ct.c
@@ -57,45 +57,27 @@
static char *lpfc_release_version = LPFC_DRIVER_VERSION;
-/*
- * lpfc_ct_unsol_event
- */
static void
-lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
- struct lpfc_dmabuf *mp, uint32_t size)
+lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
+ struct lpfc_dmabuf *mp, uint32_t size)
{
if (!mp) {
- printk(KERN_ERR "%s (%d): Unsolited CT, no buffer, "
- "piocbq = %p, status = x%x, mp = %p, size = %d\n",
- __FUNCTION__, __LINE__,
- piocbq, piocbq->iocb.ulpStatus, mp, size);
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "0146 Ignoring unsolicted CT No HBQ "
+ "status = x%x\n",
+ piocbq->iocb.ulpStatus);
}
-
- printk(KERN_ERR "%s (%d): Ignoring unsolicted CT piocbq = %p, "
- "buffer = %p, size = %d, status = x%x\n",
- __FUNCTION__, __LINE__,
- piocbq, mp, size,
- piocbq->iocb.ulpStatus);
-
+ lpfc_printf_log(phba, KERN_INFO, LOG_ELS,
+ "0145 Ignoring unsolicted CT HBQ Size:%d "
+ "status = x%x\n",
+ size, piocbq->iocb.ulpStatus);
}
static void
-lpfc_ct_ignore_hbq_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
- struct lpfc_dmabuf *mp, uint32_t size)
+lpfc_ct_unsol_buffer(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq,
+ struct lpfc_dmabuf *mp, uint32_t size)
{
- if (!mp) {
- printk(KERN_ERR "%s (%d): Unsolited CT, no "
- "HBQ buffer, piocbq = %p, status = x%x\n",
- __FUNCTION__, __LINE__,
- piocbq, piocbq->iocb.ulpStatus);
- } else {
- lpfc_ct_unsol_buffer(phba, piocbq, mp, size);
- printk(KERN_ERR "%s (%d): Ignoring unsolicted CT "
- "piocbq = %p, buffer = %p, size = %d, "
- "status = x%x\n",
- __FUNCTION__, __LINE__,
- piocbq, mp, size, piocbq->iocb.ulpStatus);
- }
+ lpfc_ct_ignore_hbq_buffer(phba, piocbq, mp, size);
}
void
@@ -109,11 +91,8 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *iocbq;
dma_addr_t paddr;
uint32_t size;
- struct lpfc_dmabuf *bdeBuf1 = piocbq->context2;
- struct lpfc_dmabuf *bdeBuf2 = piocbq->context3;
-
- piocbq->context2 = NULL;
- piocbq->context3 = NULL;
+ struct list_head head;
+ struct lpfc_dmabuf *bdeBuf;
if (unlikely(icmd->ulpStatus == IOSTAT_NEED_BUFFER)) {
lpfc_sli_hbqbuf_add_hbqs(phba, LPFC_ELS_HBQ);
@@ -122,7 +101,7 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
/* Not enough posted buffers; Try posting more buffers */
phba->fc_stat.NoRcvBuf++;
if (!(phba->sli3_options & LPFC_SLI3_HBQ_ENABLED))
- lpfc_post_buffer(phba, pring, 0, 1);
+ lpfc_post_buffer(phba, pring, 2, 1);
return;
}
@@ -133,38 +112,34 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
return;
if (phba->sli3_options & LPFC_SLI3_HBQ_ENABLED) {
- list_for_each_entry(iocbq, &piocbq->list, list) {
+ INIT_LIST_HEAD(&head);
+ list_add_tail(&head, &piocbq->list);
+ list_for_each_entry(iocbq, &head, list) {
icmd = &iocbq->iocb;
- if (icmd->ulpBdeCount == 0) {
- printk(KERN_ERR "%s (%d): Unsolited CT, no "
- "BDE, iocbq = %p, status = x%x\n",
- __FUNCTION__, __LINE__,
- iocbq, iocbq->iocb.ulpStatus);
+ if (icmd->ulpBdeCount == 0)
continue;
- }
-
+ bdeBuf = iocbq->context2;
+ iocbq->context2 = NULL;
size = icmd->un.cont64[0].tus.f.bdeSize;
- lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf1, size);
- lpfc_in_buf_free(phba, bdeBuf1);
+ lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf, size);
+ lpfc_in_buf_free(phba, bdeBuf);
if (icmd->ulpBdeCount == 2) {
- lpfc_ct_ignore_hbq_buffer(phba, piocbq, bdeBuf2,
- size);
- lpfc_in_buf_free(phba, bdeBuf2);
+ bdeBuf = iocbq->context3;
+ iocbq->context3 = NULL;
+ size = icmd->unsli3.rcvsli3.bde2.tus.f.bdeSize;
+ lpfc_ct_unsol_buffer(phba, piocbq, bdeBuf,
+ size);
+ lpfc_in_buf_free(phba, bdeBuf);
}
}
+ list_del(&head);
} else {
struct lpfc_iocbq *next;
list_for_each_entry_safe(iocbq, next, &piocbq->list, list) {
icmd = &iocbq->iocb;
- if (icmd->ulpBdeCount == 0) {
- printk(KERN_ERR "%s (%d): Unsolited CT, no "
- "BDE, iocbq = %p, status = x%x\n",
- __FUNCTION__, __LINE__,
- iocbq, iocbq->iocb.ulpStatus);
- continue;
- }
-
+ if (icmd->ulpBdeCount == 0)
+ lpfc_ct_unsol_buffer(phba, piocbq, NULL, 0);
for (i = 0; i < icmd->ulpBdeCount; i++) {
paddr = getPaddr(icmd->un.cont64[i].addrHigh,
icmd->un.cont64[i].addrLow);
@@ -176,6 +151,7 @@ lpfc_ct_unsol_event(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
}
list_del(&iocbq->list);
lpfc_sli_release_iocbq(phba, iocbq);
+ lpfc_post_buffer(phba, pring, i, 1);
}
}
}