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path: root/drivers/scsi/lpfc/lpfc_sli.c
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Diffstat (limited to 'drivers/scsi/lpfc/lpfc_sli.c')
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c530
1 files changed, 247 insertions, 283 deletions
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index e74e224fd77..e2c08c5d83f 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -65,6 +65,28 @@ typedef enum _lpfc_iocb_type {
LPFC_ABORT_IOCB
} lpfc_iocb_type;
+struct lpfc_iocbq *
+lpfc_sli_get_iocbq(struct lpfc_hba * phba)
+{
+ struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
+ struct lpfc_iocbq * iocbq = NULL;
+
+ list_remove_head(lpfc_iocb_list, iocbq, struct lpfc_iocbq, list);
+ return iocbq;
+}
+
+void
+lpfc_sli_release_iocbq(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
+{
+ size_t start_clean = (size_t)(&((struct lpfc_iocbq *)NULL)->iocb);
+
+ /*
+ * Clean all volatile data fields, preserve iotag and node struct.
+ */
+ memset((char*)iocbq + start_clean, 0, sizeof(*iocbq) - start_clean);
+ list_add_tail(&iocbq->list, &phba->lpfc_iocb_list);
+}
+
/*
* Translate the iocb command to an iocb command type used to decide the final
* disposition of each completed IOCB.
@@ -265,41 +287,69 @@ lpfc_sli_next_iocb_slot (struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
return iocb;
}
-static uint32_t
-lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_sli_ring * pring)
+uint16_t
+lpfc_sli_next_iotag(struct lpfc_hba * phba, struct lpfc_iocbq * iocbq)
{
- uint32_t search_start;
+ struct lpfc_iocbq ** new_arr;
+ struct lpfc_iocbq ** old_arr;
+ size_t new_len;
+ struct lpfc_sli *psli = &phba->sli;
+ uint16_t iotag;
- if (pring->fast_lookup == NULL) {
- pring->iotag_ctr++;
- if (pring->iotag_ctr >= pring->iotag_max)
- pring->iotag_ctr = 1;
- return pring->iotag_ctr;
+ spin_lock_irq(phba->host->host_lock);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ else if (psli->iocbq_lookup_len < (0xffff
+ - LPFC_IOCBQ_LOOKUP_INCREMENT)) {
+ new_len = psli->iocbq_lookup_len + LPFC_IOCBQ_LOOKUP_INCREMENT;
+ spin_unlock_irq(phba->host->host_lock);
+ new_arr = kmalloc(new_len * sizeof (struct lpfc_iocbq *),
+ GFP_KERNEL);
+ if (new_arr) {
+ memset((char *)new_arr, 0,
+ new_len * sizeof (struct lpfc_iocbq *));
+ spin_lock_irq(phba->host->host_lock);
+ old_arr = psli->iocbq_lookup;
+ if (new_len <= psli->iocbq_lookup_len) {
+ /* highly unprobable case */
+ kfree(new_arr);
+ iotag = psli->last_iotag;
+ if(++iotag < psli->iocbq_lookup_len) {
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ return iotag;
+ }
+ spin_unlock_irq(phba->host->host_lock);
+ return 0;
+ }
+ if (psli->iocbq_lookup)
+ memcpy(new_arr, old_arr,
+ ((psli->last_iotag + 1) *
+ sizeof (struct lpfc_iocbq *)));
+ psli->iocbq_lookup = new_arr;
+ psli->iocbq_lookup_len = new_len;
+ psli->last_iotag = iotag;
+ psli->iocbq_lookup[iotag] = iocbq;
+ spin_unlock_irq(phba->host->host_lock);
+ iocbq->iotag = iotag;
+ kfree(old_arr);
+ return iotag;
+ }
}
- search_start = pring->iotag_ctr;
-
- do {
- pring->iotag_ctr++;
- if (pring->iotag_ctr >= pring->fast_iotag)
- pring->iotag_ctr = 1;
-
- if (*(pring->fast_lookup + pring->iotag_ctr) == NULL)
- return pring->iotag_ctr;
-
- } while (pring->iotag_ctr != search_start);
+ lpfc_printf_log(phba, KERN_ERR,LOG_SLI,
+ "%d:0318 Failed to allocate IOTAG.last IOTAG is %d\n",
+ phba->brd_no, psli->last_iotag);
- /*
- * Outstanding I/O count for ring <ringno> is at max <fast_iotag>
- */
- lpfc_printf_log(phba,
- KERN_ERR,
- LOG_SLI,
- "%d:0318 Outstanding I/O count for ring %d is at max x%x\n",
- phba->brd_no,
- pring->ringno,
- pring->fast_iotag);
- return (0);
+ return 0;
}
static void
@@ -307,10 +357,9 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
IOCB_t *iocb, struct lpfc_iocbq *nextiocb)
{
/*
- * Allocate and set up an iotag
+ * Set up an iotag
*/
- nextiocb->iocb.ulpIoTag =
- lpfc_sli_next_iotag(phba, &phba->sli.ring[phba->sli.fcp_ring]);
+ nextiocb->iocb.ulpIoTag = (nextiocb->iocb_cmpl) ? nextiocb->iotag : 0;
/*
* Issue iocb command to adapter
@@ -326,16 +375,15 @@ lpfc_sli_submit_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
*/
if (nextiocb->iocb_cmpl)
lpfc_sli_ringtxcmpl_put(phba, pring, nextiocb);
- else {
- list_add_tail(&nextiocb->list, &phba->lpfc_iocb_list);
- }
+ else
+ lpfc_sli_release_iocbq(phba, nextiocb);
/*
* Let the HBA know what IOCB slot will be the next one the
* driver will put a command into.
*/
pring->cmdidx = pring->next_cmdidx;
- writeb(pring->cmdidx, phba->MBslimaddr
+ writel(pring->cmdidx, phba->MBslimaddr
+ (SLIMOFF + (pring->ringno * 2)) * 4);
}
@@ -752,80 +800,28 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
}
static struct lpfc_iocbq *
-lpfc_sli_txcmpl_ring_search_slow(struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * prspiocb)
-{
- IOCB_t *icmd = NULL;
- IOCB_t *irsp = NULL;
- struct lpfc_iocbq *cmd_iocb;
- struct lpfc_iocbq *iocb, *next_iocb;
- uint16_t iotag;
-
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- cmd_iocb = NULL;
-
- /* Search through txcmpl from the begining */
- list_for_each_entry_safe(iocb, next_iocb, &(pring->txcmplq), list) {
- icmd = &iocb->iocb;
- if (iotag == icmd->ulpIoTag) {
- /* Found a match. */
- cmd_iocb = iocb;
- list_del(&iocb->list);
- pring->txcmplq_cnt--;
- break;
- }
- }
-
- return (cmd_iocb);
-}
-
-static struct lpfc_iocbq *
-lpfc_sli_txcmpl_ring_iotag_lookup(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * prspiocb)
+lpfc_sli_iocbq_lookup(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * prspiocb)
{
- IOCB_t *irsp = NULL;
struct lpfc_iocbq *cmd_iocb = NULL;
uint16_t iotag;
- if (unlikely(pring->fast_lookup == NULL))
- return NULL;
-
- /* Use fast lookup based on iotag for completion */
- irsp = &prspiocb->iocb;
- iotag = irsp->ulpIoTag;
- if (iotag < pring->fast_iotag) {
- cmd_iocb = *(pring->fast_lookup + iotag);
- *(pring->fast_lookup + iotag) = NULL;
- if (cmd_iocb) {
- list_del(&cmd_iocb->list);
- pring->txcmplq_cnt--;
- return cmd_iocb;
- } else {
- /*
- * This is clearly an error. A ring that uses iotags
- * should never have a interrupt for a completion that
- * is not on the ring. Return NULL and log a error.
- */
- lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "%d:0327 Rsp ring %d error - command "
- "completion for iotag x%x not found\n",
- phba->brd_no, pring->ringno, iotag);
- return NULL;
- }
+ iotag = prspiocb->iocb.ulpIoTag;
+
+ if (iotag != 0 && iotag <= phba->sli.last_iotag) {
+ cmd_iocb = phba->sli.iocbq_lookup[iotag];
+ list_del(&cmd_iocb->list);
+ pring->txcmplq_cnt--;
+ return cmd_iocb;
}
- /*
- * Rsp ring <ringno> get: iotag <iotag> greater then
- * configured max <fast_iotag> wd0 <irsp>. This is an
- * error. Just return NULL.
- */
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
- "%d:0317 Rsp ring %d get: iotag x%x greater then "
- "configured max x%x wd0 x%x\n",
- phba->brd_no, pring->ringno, iotag, pring->fast_iotag,
- *(((uint32_t *) irsp) + 7));
+ "%d:0317 iotag x%x is out off "
+ "range: max iotag x%x wd0 x%x\n",
+ phba->brd_no, iotag,
+ phba->sli.last_iotag,
+ *(((uint32_t *) &prspiocb->iocb) + 7));
return NULL;
}
@@ -839,7 +835,7 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
/* Based on the iotag field, get the cmd IOCB from the txcmplq */
spin_lock_irqsave(phba->host->host_lock, iflag);
- cmdiocbp = lpfc_sli_txcmpl_ring_search_slow(pring, saveq);
+ cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
/*
@@ -853,17 +849,13 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
spin_lock_irqsave(phba->host->host_lock, iflag);
}
else {
- if (cmdiocbp->iocb_flag & LPFC_IO_POLL)
- rc = 0;
-
spin_unlock_irqrestore(phba->host->host_lock,
iflag);
(cmdiocbp->iocb_cmpl) (phba, cmdiocbp, saveq);
spin_lock_irqsave(phba->host->host_lock, iflag);
}
- } else {
- list_add_tail(&cmdiocbp->list, &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, cmdiocbp);
} else {
/*
* Unknown initiating command based on the response iotag.
@@ -889,6 +881,7 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba * phba, struct lpfc_sli_ring * pring,
saveq->iocb.ulpContext);
}
}
+
spin_unlock_irqrestore(phba->host->host_lock, iflag);
return rc;
}
@@ -953,7 +946,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
* structure. The copy involves a byte-swap since the
* network byte order and pci byte orders are different.
*/
- entry = (IOCB_t *) IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
+ entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
lpfc_sli_pcimem_bcopy((uint32_t *) entry,
(uint32_t *) &rspiocbq.iocb,
sizeof (IOCB_t));
@@ -990,9 +983,8 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
break;
}
- cmdiocbq = lpfc_sli_txcmpl_ring_iotag_lookup(phba,
- pring,
- &rspiocbq);
+ cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
+ &rspiocbq);
if ((cmdiocbq) && (cmdiocbq->iocb_cmpl)) {
spin_unlock_irqrestore(
phba->host->host_lock, iflag);
@@ -1033,7 +1025,7 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba * phba,
to_slim = phba->MBslimaddr +
(SLIMOFF + (pring->ringno * 2) + 1) * 4;
- writeb(pring->rspidx, to_slim);
+ writel(pring->rspidx, to_slim);
if (pring->rspidx == portRspPut)
portRspPut = le32_to_cpu(pgp->rspPutInx);
@@ -1073,7 +1065,6 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
struct lpfc_iocbq *next_iocb;
struct lpfc_iocbq *cmdiocbp;
struct lpfc_iocbq *saveq;
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
struct lpfc_pgp *pgp = &phba->slim2p->mbx.us.s2.port[pring->ringno];
uint8_t iocb_cmd_type;
lpfc_iocb_type type;
@@ -1115,7 +1106,6 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
}
rmb();
- lpfc_iocb_list = &phba->lpfc_iocb_list;
while (pring->rspidx != portRspPut) {
/*
* Build a completion list and call the appropriate handler.
@@ -1131,8 +1121,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
* received.
*/
entry = IOCB_ENTRY(pring->rspringaddr, pring->rspidx);
- list_remove_head(lpfc_iocb_list, rspiocbp, struct lpfc_iocbq,
- list);
+ rspiocbp = lpfc_sli_get_iocbq(phba);
if (rspiocbp == NULL) {
printk(KERN_ERR "%s: out of buffers! Failing "
"completion.\n", __FUNCTION__);
@@ -1147,7 +1136,7 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
to_slim = phba->MBslimaddr + (SLIMOFF + (pring->ringno * 2)
+ 1) * 4;
- writeb(pring->rspidx, to_slim);
+ writel(pring->rspidx, to_slim);
if (list_empty(&(pring->iocb_continueq))) {
list_add(&rspiocbp->list, &(pring->iocb_continueq));
@@ -1213,8 +1202,8 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
} else if (type == LPFC_ABORT_IOCB) {
if ((irsp->ulpCommand != CMD_XRI_ABORTED_CX) &&
((cmdiocbp =
- lpfc_sli_txcmpl_ring_search_slow(pring,
- saveq)))) {
+ lpfc_sli_iocbq_lookup(phba, pring,
+ saveq)))) {
/* Call the specified completion
routine */
if (cmdiocbp->iocb_cmpl) {
@@ -1226,10 +1215,9 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
spin_lock_irqsave(
phba->host->host_lock,
iflag);
- } else {
- list_add_tail(&cmdiocbp->list,
- lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba,
+ cmdiocbp);
}
} else if (type == LPFC_UNKNOWN_IOCB) {
if (irsp->ulpCommand == CMD_ADAPTER_MSG) {
@@ -1264,12 +1252,12 @@ lpfc_sli_handle_slow_ring_event(struct lpfc_hba * phba,
next_iocb,
&saveq->list,
list) {
- list_add_tail(&rspiocbp->list,
- lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba,
+ rspiocbp);
}
}
- list_add_tail(&saveq->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, saveq);
}
}
@@ -1314,7 +1302,6 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
struct lpfc_iocbq *iocb, *next_iocb;
IOCB_t *icmd = NULL, *cmd = NULL;
int errcnt;
- uint16_t iotag;
errcnt = 0;
@@ -1331,9 +1318,8 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
spin_unlock_irq(phba->host->host_lock);
(iocb->iocb_cmpl) (phba, iocb, iocb);
spin_lock_irq(phba->host->host_lock);
- } else {
- list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
pring->txq_cnt = 0;
INIT_LIST_HEAD(&(pring->txq));
@@ -1343,13 +1329,8 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
cmd = &iocb->iocb;
/*
- * Imediate abort of IOCB, clear fast_lookup entry,
- * if any, deque and call compl
+ * Imediate abort of IOCB, deque and call compl
*/
- iotag = cmd->ulpIoTag;
- if (iotag && pring->fast_lookup &&
- (iotag < pring->fast_iotag))
- pring->fast_lookup[iotag] = NULL;
list_del_init(&iocb->list);
pring->txcmplq_cnt--;
@@ -1360,9 +1341,8 @@ lpfc_sli_abort_iocb_ring(struct lpfc_hba *phba, struct lpfc_sli_ring *pring)
spin_unlock_irq(phba->host->host_lock);
(iocb->iocb_cmpl) (phba, iocb, iocb);
spin_lock_irq(phba->host->host_lock);
- } else {
- list_add_tail(&iocb->list, &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
INIT_LIST_HEAD(&pring->txcmplq);
@@ -2147,6 +2127,10 @@ lpfc_sli_setup(struct lpfc_hba *phba)
psli->next_ring = LPFC_FCP_NEXT_RING;
psli->ip_ring = LPFC_IP_RING;
+ psli->iocbq_lookup = NULL;
+ psli->iocbq_lookup_len = 0;
+ psli->last_iotag = 0;
+
for (i = 0; i < psli->num_rings; i++) {
pring = &psli->ring[i];
switch (i) {
@@ -2222,7 +2206,7 @@ lpfc_sli_queue_setup(struct lpfc_hba * phba)
{
struct lpfc_sli *psli;
struct lpfc_sli_ring *pring;
- int i, cnt;
+ int i;
psli = &phba->sli;
spin_lock_irq(phba->host->host_lock);
@@ -2238,19 +2222,6 @@ lpfc_sli_queue_setup(struct lpfc_hba * phba)
INIT_LIST_HEAD(&pring->txcmplq);
INIT_LIST_HEAD(&pring->iocb_continueq);
INIT_LIST_HEAD(&pring->postbufq);
- cnt = pring->fast_iotag;
- spin_unlock_irq(phba->host->host_lock);
- if (cnt) {
- pring->fast_lookup =
- kmalloc(cnt * sizeof (struct lpfc_iocbq *),
- GFP_KERNEL);
- if (pring->fast_lookup == 0) {
- return (0);
- }
- memset((char *)pring->fast_lookup, 0,
- cnt * sizeof (struct lpfc_iocbq *));
- }
- spin_lock_irq(phba->host->host_lock);
}
spin_unlock_irq(phba->host->host_lock);
return (1);
@@ -2292,19 +2263,14 @@ lpfc_sli_hba_down(struct lpfc_hba * phba)
flags);
(iocb->iocb_cmpl) (phba, iocb, iocb);
spin_lock_irqsave(phba->host->host_lock, flags);
- } else {
- list_add_tail(&iocb->list,
- &phba->lpfc_iocb_list);
- }
+ } else
+ lpfc_sli_release_iocbq(phba, iocb);
}
INIT_LIST_HEAD(&(pring->txq));
- if (pring->fast_lookup) {
- kfree(pring->fast_lookup);
- pring->fast_lookup = NULL;
- }
-
+ kfree(pring->fast_lookup);
+ pring->fast_lookup = NULL;
}
spin_unlock_irqrestore(phba->host->host_lock, flags);
@@ -2436,7 +2402,7 @@ lpfc_sli_abort_elsreq_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
kfree(buf_ptr);
}
- list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
return;
}
@@ -2445,16 +2411,14 @@ lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
struct lpfc_sli_ring * pring,
struct lpfc_iocbq * cmdiocb)
{
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
- struct lpfc_iocbq *abtsiocbp = NULL;
+ struct lpfc_iocbq *abtsiocbp;
IOCB_t *icmd = NULL;
IOCB_t *iabt = NULL;
/* issue ABTS for this IOCB based on iotag */
- list_remove_head(lpfc_iocb_list, abtsiocbp, struct lpfc_iocbq, list);
+ abtsiocbp = lpfc_sli_get_iocbq(phba);
if (abtsiocbp == NULL)
return 0;
- memset(abtsiocbp, 0, sizeof (struct lpfc_iocbq));
iabt = &abtsiocbp->iocb;
icmd = &cmdiocb->iocb;
@@ -2473,7 +2437,7 @@ lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
abtsiocbp->iocb_cmpl = lpfc_sli_abort_elsreq_cmpl;
break;
default:
- list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
return 0;
}
@@ -2485,7 +2449,7 @@ lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
iabt->ulpCommand = CMD_ABORT_MXRI64_CN;
if (lpfc_sli_issue_iocb(phba, pring, abtsiocbp, 0) == IOCB_ERROR) {
- list_add_tail(&abtsiocbp->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocbp);
return 0;
}
@@ -2493,28 +2457,37 @@ lpfc_sli_issue_abort_iotag32(struct lpfc_hba * phba,
}
static int
-lpfc_sli_validate_iocb_cmd(struct lpfc_scsi_buf *lpfc_cmd, uint16_t tgt_id,
- uint64_t lun_id, struct lpfc_iocbq *iocb,
- uint32_t ctx, lpfc_ctx_cmd ctx_cmd)
+lpfc_sli_validate_fcp_iocb(struct lpfc_iocbq *iocbq, uint16_t tgt_id,
+ uint64_t lun_id, uint32_t ctx,
+ lpfc_ctx_cmd ctx_cmd)
{
+ struct lpfc_scsi_buf *lpfc_cmd;
+ struct scsi_cmnd *cmnd;
int rc = 1;
- if (lpfc_cmd == NULL)
+ if (!(iocbq->iocb_flag & LPFC_IO_FCP))
+ return rc;
+
+ lpfc_cmd = container_of(iocbq, struct lpfc_scsi_buf, cur_iocbq);
+ cmnd = lpfc_cmd->pCmd;
+
+ if (cmnd == NULL)
return rc;
switch (ctx_cmd) {
case LPFC_CTX_LUN:
- if ((lpfc_cmd->pCmd->device->id == tgt_id) &&
- (lpfc_cmd->pCmd->device->lun == lun_id))
+ if ((cmnd->device->id == tgt_id) &&
+ (cmnd->device->lun == lun_id))
rc = 0;
break;
case LPFC_CTX_TGT:
- if (lpfc_cmd->pCmd->device->id == tgt_id)
+ if (cmnd->device->id == tgt_id)
rc = 0;
break;
case LPFC_CTX_CTX:
- if (iocb->iocb.ulpContext == ctx)
+ if (iocbq->iocb.ulpContext == ctx)
rc = 0;
+ break;
case LPFC_CTX_HOST:
rc = 0;
break;
@@ -2531,30 +2504,17 @@ int
lpfc_sli_sum_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, lpfc_ctx_cmd ctx_cmd)
{
- struct lpfc_iocbq *iocb, *next_iocb;
- IOCB_t *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
- int sum = 0, ret_val = 0;
-
- /* Next check the txcmplq */
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
+ struct lpfc_iocbq *iocbq;
+ int sum, i;
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ for (i = 1, sum = 0; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
- NULL, 0, ctx_cmd);
- if (ret_val != 0)
- continue;
- sum++;
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, ctx_cmd) == 0)
+ sum++;
}
+
return sum;
}
@@ -2563,7 +2523,7 @@ lpfc_sli_abort_fcp_cmpl(struct lpfc_hba * phba, struct lpfc_iocbq * cmdiocb,
struct lpfc_iocbq * rspiocb)
{
spin_lock_irq(phba->host->host_lock);
- list_add_tail(&cmdiocb->list, &phba->lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, cmdiocb);
spin_unlock_irq(phba->host->host_lock);
return;
}
@@ -2573,39 +2533,27 @@ lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
uint16_t tgt_id, uint64_t lun_id, uint32_t ctx,
lpfc_ctx_cmd abort_cmd)
{
- struct lpfc_iocbq *iocb, *next_iocb;
- struct lpfc_iocbq *abtsiocb = NULL;
- struct list_head *lpfc_iocb_list = &phba->lpfc_iocb_list;
+ struct lpfc_iocbq *iocbq;
+ struct lpfc_iocbq *abtsiocb;
IOCB_t *cmd = NULL;
- struct lpfc_scsi_buf *lpfc_cmd;
int errcnt = 0, ret_val = 0;
+ int i;
- list_for_each_entry_safe(iocb, next_iocb, &pring->txcmplq, list) {
- cmd = &iocb->iocb;
-
- /* Must be a FCP command */
- if ((cmd->ulpCommand != CMD_FCP_ICMND64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IWRITE64_CR) &&
- (cmd->ulpCommand != CMD_FCP_IREAD64_CR)) {
- continue;
- }
+ for (i = 1; i <= phba->sli.last_iotag; i++) {
+ iocbq = phba->sli.iocbq_lookup[i];
- /* context1 MUST be a struct lpfc_scsi_buf */
- lpfc_cmd = (struct lpfc_scsi_buf *) (iocb->context1);
- ret_val = lpfc_sli_validate_iocb_cmd(lpfc_cmd, tgt_id, lun_id,
- iocb, ctx, abort_cmd);
- if (ret_val != 0)
+ if (lpfc_sli_validate_fcp_iocb (iocbq, tgt_id, lun_id,
+ 0, abort_cmd) != 0)
continue;
/* issue ABTS for this IOCB based on iotag */
- list_remove_head(lpfc_iocb_list, abtsiocb, struct lpfc_iocbq,
- list);
+ abtsiocb = lpfc_sli_get_iocbq(phba);
if (abtsiocb == NULL) {
errcnt++;
continue;
}
- memset(abtsiocb, 0, sizeof (struct lpfc_iocbq));
+ cmd = &iocbq->iocb;
abtsiocb->iocb.un.acxri.abortType = ABORT_TYPE_ABTS;
abtsiocb->iocb.un.acxri.abortContextTag = cmd->ulpContext;
abtsiocb->iocb.un.acxri.abortIoTag = cmd->ulpIoTag;
@@ -2621,7 +2569,7 @@ lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
abtsiocb->iocb_cmpl = lpfc_sli_abort_fcp_cmpl;
ret_val = lpfc_sli_issue_iocb(phba, pring, abtsiocb, 0);
if (ret_val == IOCB_ERROR) {
- list_add_tail(&abtsiocb->list, lpfc_iocb_list);
+ lpfc_sli_release_iocbq(phba, abtsiocb);
errcnt++;
continue;
}
@@ -2630,83 +2578,99 @@ lpfc_sli_abort_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
return errcnt;
}
-void
-lpfc_sli_wake_iocb_high_priority(struct lpfc_hba * phba,
- struct lpfc_iocbq * queue1,
- struct lpfc_iocbq * queue2)
+static void
+lpfc_sli_wake_iocb_wait(struct lpfc_hba *phba,
+ struct lpfc_iocbq *cmdiocbq,
+ struct lpfc_iocbq *rspiocbq)
{
- if (queue1->context2 && queue2)
- memcpy(queue1->context2, queue2, sizeof (struct lpfc_iocbq));
+ wait_queue_head_t *pdone_q;
+ unsigned long iflags;
- /* The waiter is looking for LPFC_IO_HIPRI bit to be set
- as a signal to wake up */
- queue1->iocb_flag |= LPFC_IO_HIPRI;
+ spin_lock_irqsave(phba->host->host_lock, iflags);
+ cmdiocbq->iocb_flag |= LPFC_IO_WAKE;
+ if (cmdiocbq->context2 && rspiocbq)
+ memcpy(&((struct lpfc_iocbq *)cmdiocbq->context2)->iocb,
+ &rspiocbq->iocb, sizeof(IOCB_t));
+
+ pdone_q = cmdiocbq->context_un.wait_queue;
+ spin_unlock_irqrestore(phba->host->host_lock, iflags);
+ if (pdone_q)
+ wake_up(pdone_q);
return;
}
+/*
+ * Issue the caller's iocb and wait for its completion, but no longer than the
+ * caller's timeout. Note that iocb_flags is cleared before the
+ * lpfc_sli_issue_call since the wake routine sets a unique value and by
+ * definition this is a wait function.
+ */
int
-lpfc_sli_issue_iocb_wait_high_priority(struct lpfc_hba * phba,
- struct lpfc_sli_ring * pring,
- struct lpfc_iocbq * piocb,
- uint32_t flag,
- struct lpfc_iocbq * prspiocbq,
- uint32_t timeout)
+lpfc_sli_issue_iocb_wait(struct lpfc_hba * phba,
+ struct lpfc_sli_ring * pring,
+ struct lpfc_iocbq * piocb,
+ struct lpfc_iocbq * prspiocbq,
+ uint32_t timeout)
{
- int j, delay_time, retval = IOCB_ERROR;
-
- /* The caller must left context1 empty. */
- if (piocb->context_un.hipri_wait_queue != 0) {
- return IOCB_ERROR;
- }
+ DECLARE_WAIT_QUEUE_HEAD(done_q);
+ long timeleft, timeout_req = 0;
+ int retval = IOCB_SUCCESS;
/*
- * If the caller has provided a response iocbq buffer, context2 must
- * be NULL or its an error.
+ * If the caller has provided a response iocbq buffer, then context2
+ * is NULL or its an error.
*/
- if (prspiocbq && piocb->context2) {
- return IOCB_ERROR;
+ if (prspiocbq) {
+ if (piocb->context2)
+ return IOCB_ERROR;
+ piocb->context2 = prspiocbq;
}
- piocb->context2 = prspiocbq;
-
- /* Setup callback routine and issue the command. */
- piocb->iocb_cmpl = lpfc_sli_wake_iocb_high_priority;
- retval = lpfc_sli_issue_iocb(phba, pring, piocb,
- flag | SLI_IOCB_HIGH_PRIORITY);
- if (retval != IOCB_SUCCESS) {
- piocb->context2 = NULL;
- return IOCB_ERROR;
- }
+ piocb->iocb_cmpl = lpfc_sli_wake_iocb_wait;
+ piocb->context_un.wait_queue = &done_q;
+ piocb->iocb_flag &= ~LPFC_IO_WAKE;
- /*
- * This high-priority iocb was sent out-of-band. Poll for its
- * completion rather than wait for a signal. Note that the host_lock
- * is held by the midlayer and must be released here to allow the
- * interrupt handlers to complete the IO and signal this routine via
- * the iocb_flag.
- * Also, the delay_time is computed to be one second longer than
- * the scsi command timeout to give the FW time to abort on
- * timeout rather than the driver just giving up. Typically,
- * the midlayer does not specify a time for this command so the
- * driver is free to enforce its own timeout.
- */
+ retval = lpfc_sli_issue_iocb(phba, pring, piocb, 0);
+ if (retval == IOCB_SUCCESS) {
+ timeout_req = timeout * HZ;
+ spin_unlock_irq(phba->host->host_lock);
+ timeleft = wait_event_timeout(done_q,
+ piocb->iocb_flag & LPFC_IO_WAKE,
+ timeout_req);
+ spin_lock_irq(phba->host->host_lock);
- delay_time = ((timeout + 1) * 1000) >> 6;
- retval = IOCB_ERROR;
- spin_unlock_irq(phba->host->host_lock);
- for (j = 0; j < 64; j++) {
- msleep(delay_time);
- if (piocb->iocb_flag & LPFC_IO_HIPRI) {
- piocb->iocb_flag &= ~LPFC_IO_HIPRI;
- retval = IOCB_SUCCESS;
- break;
+ if (timeleft == 0) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0329 IOCB wait timeout error - no "
+ "wake response Data x%x\n",
+ phba->brd_no, timeout);
+ retval = IOCB_TIMEDOUT;
+ } else if (!(piocb->iocb_flag & LPFC_IO_WAKE)) {
+ lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
+ "%d:0330 IOCB wake NOT set, "
+ "Data x%x x%lx\n", phba->brd_no,
+ timeout, (timeleft / jiffies));
+ retval = IOCB_TIMEDOUT;
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0331 IOCB wake signaled\n",
+ phba->brd_no);
}
+ } else {
+ lpfc_printf_log(phba, KERN_INFO, LOG_SLI,
+ "%d:0332 IOCB wait issue failed, Data x%x\n",
+ phba->brd_no, retval);
+ retval = IOCB_ERROR;
}
- spin_lock_irq(phba->host->host_lock);
- piocb->context2 = NULL;
+ if (prspiocbq)
+ piocb->context2 = NULL;
+
+ piocb->context_un.wait_queue = NULL;
+ piocb->iocb_cmpl = NULL;
return retval;
}
+
int
lpfc_sli_issue_mbox_wait(struct lpfc_hba * phba, LPFC_MBOXQ_t * pmboxq,
uint32_t timeout)