summaryrefslogtreecommitdiff
path: root/drivers/scsi/lpfc
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/scsi/lpfc')
-rw-r--r--drivers/scsi/lpfc/lpfc_attr.c37
-rw-r--r--drivers/scsi/lpfc/lpfc_els.c5
-rw-r--r--drivers/scsi/lpfc/lpfc_sli.c84
-rw-r--r--drivers/scsi/lpfc/lpfc_version.h2
4 files changed, 80 insertions, 48 deletions
diff --git a/drivers/scsi/lpfc/lpfc_attr.c b/drivers/scsi/lpfc/lpfc_attr.c
index e9adb3f1961d..d4c65e2109e2 100644
--- a/drivers/scsi/lpfc/lpfc_attr.c
+++ b/drivers/scsi/lpfc/lpfc_attr.c
@@ -176,6 +176,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
int i;
int len = 0;
char tmp[LPFC_MAX_NVME_INFO_TMP_LEN] = {0};
+ unsigned long iflags = 0;
if (!(vport->cfg_enable_fc4_type & LPFC_ENABLE_NVME)) {
len = scnprintf(buf, PAGE_SIZE, "NVME Disabled\n");
@@ -354,7 +355,7 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
phba->sli4_hba.io_xri_max,
lpfc_sli4_get_els_iocb_cnt(phba));
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
/* Port state is only one of two values for now. */
if (localport->port_id)
@@ -370,15 +371,15 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
wwn_to_u64(vport->fc_nodename.u.wwn),
localport->port_id, statep);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
list_for_each_entry(ndlp, &vport->fc_nodes, nlp_listp) {
nrport = NULL;
- spin_lock(&vport->phba->hbalock);
+ spin_lock_irqsave(&vport->phba->hbalock, iflags);
rport = lpfc_ndlp_get_nrport(ndlp);
if (rport)
nrport = rport->remoteport;
- spin_unlock(&vport->phba->hbalock);
+ spin_unlock_irqrestore(&vport->phba->hbalock, iflags);
if (!nrport)
continue;
@@ -397,39 +398,39 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
/* Tab in to show lport ownership. */
if (strlcat(buf, "NVME RPORT ", PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
if (phba->brd_no >= 10) {
if (strlcat(buf, " ", PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
scnprintf(tmp, sizeof(tmp), "WWPN x%llx ",
nrport->port_name);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
scnprintf(tmp, sizeof(tmp), "WWNN x%llx ",
nrport->node_name);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
scnprintf(tmp, sizeof(tmp), "DID x%06x ",
nrport->port_id);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
/* An NVME rport can have multiple roles. */
if (nrport->port_role & FC_PORT_ROLE_NVME_INITIATOR) {
if (strlcat(buf, "INITIATOR ", PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
if (nrport->port_role & FC_PORT_ROLE_NVME_TARGET) {
if (strlcat(buf, "TARGET ", PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
if (nrport->port_role & FC_PORT_ROLE_NVME_DISCOVERY) {
if (strlcat(buf, "DISCSRVC ", PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
if (nrport->port_role & ~(FC_PORT_ROLE_NVME_INITIATOR |
FC_PORT_ROLE_NVME_TARGET |
@@ -437,12 +438,12 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
scnprintf(tmp, sizeof(tmp), "UNKNOWN ROLE x%x",
nrport->port_role);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
scnprintf(tmp, sizeof(tmp), "%s\n", statep);
if (strlcat(buf, tmp, PAGE_SIZE) >= PAGE_SIZE)
- goto buffer_done;
+ goto rcu_unlock_buf_done;
}
rcu_read_unlock();
@@ -504,7 +505,13 @@ lpfc_nvme_info_show(struct device *dev, struct device_attribute *attr,
atomic_read(&lport->cmpl_fcp_err));
strlcat(buf, tmp, PAGE_SIZE);
-buffer_done:
+ /* RCU is already unlocked. */
+ goto buffer_done;
+
+ rcu_unlock_buf_done:
+ rcu_read_unlock();
+
+ buffer_done:
len = strnlen(buf, PAGE_SIZE);
if (unlikely(len >= (PAGE_SIZE - 1))) {
diff --git a/drivers/scsi/lpfc/lpfc_els.c b/drivers/scsi/lpfc/lpfc_els.c
index c8fb0b455f2a..5ac4f8d76b91 100644
--- a/drivers/scsi/lpfc/lpfc_els.c
+++ b/drivers/scsi/lpfc/lpfc_els.c
@@ -7334,7 +7334,10 @@ int
lpfc_send_rrq(struct lpfc_hba *phba, struct lpfc_node_rrq *rrq)
{
struct lpfc_nodelist *ndlp = lpfc_findnode_did(rrq->vport,
- rrq->nlp_DID);
+ rrq->nlp_DID);
+ if (!ndlp)
+ return 1;
+
if (lpfc_test_rrq_active(phba, ndlp, rrq->xritag))
return lpfc_issue_els_rrq(rrq->vport, ndlp,
rrq->nlp_DID, rrq);
diff --git a/drivers/scsi/lpfc/lpfc_sli.c b/drivers/scsi/lpfc/lpfc_sli.c
index 2acda188b0dc..d1512e4f9791 100644
--- a/drivers/scsi/lpfc/lpfc_sli.c
+++ b/drivers/scsi/lpfc/lpfc_sli.c
@@ -991,15 +991,14 @@ lpfc_cleanup_vports_rrqs(struct lpfc_vport *vport, struct lpfc_nodelist *ndlp)
* @ndlp: Targets nodelist pointer for this exchange.
* @xritag the xri in the bitmap to test.
*
- * This function is called with hbalock held. This function
- * returns 0 = rrq not active for this xri
- * 1 = rrq is valid for this xri.
+ * This function returns:
+ * 0 = rrq not active for this xri
+ * 1 = rrq is valid for this xri.
**/
int
lpfc_test_rrq_active(struct lpfc_hba *phba, struct lpfc_nodelist *ndlp,
uint16_t xritag)
{
- lockdep_assert_held(&phba->hbalock);
if (!ndlp)
return 0;
if (!ndlp->active_rrqs_xri_bitmap)
@@ -1102,10 +1101,11 @@ out:
* @phba: Pointer to HBA context object.
* @piocb: Pointer to the iocbq.
*
- * This function is called with the ring lock held. This function
- * gets a new driver sglq object from the sglq list. If the
- * list is not empty then it is successful, it returns pointer to the newly
- * allocated sglq object else it returns NULL.
+ * The driver calls this function with either the nvme ls ring lock
+ * or the fc els ring lock held depending on the iocb usage. This function
+ * gets a new driver sglq object from the sglq list. If the list is not empty
+ * then it is successful, it returns pointer to the newly allocated sglq
+ * object else it returns NULL.
**/
static struct lpfc_sglq *
__lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
@@ -1115,9 +1115,15 @@ __lpfc_sli_get_els_sglq(struct lpfc_hba *phba, struct lpfc_iocbq *piocbq)
struct lpfc_sglq *start_sglq = NULL;
struct lpfc_io_buf *lpfc_cmd;
struct lpfc_nodelist *ndlp;
+ struct lpfc_sli_ring *pring = NULL;
int found = 0;
- lockdep_assert_held(&phba->hbalock);
+ if (piocbq->iocb_flag & LPFC_IO_NVME_LS)
+ pring = phba->sli4_hba.nvmels_wq->pring;
+ else
+ pring = lpfc_phba_elsring(phba);
+
+ lockdep_assert_held(&pring->ring_lock);
if (piocbq->iocb_flag & LPFC_IO_FCP) {
lpfc_cmd = (struct lpfc_io_buf *) piocbq->context1;
@@ -1560,7 +1566,8 @@ lpfc_sli_ring_map(struct lpfc_hba *phba)
* @pring: Pointer to driver SLI ring object.
* @piocb: Pointer to the driver iocb object.
*
- * This function is called with hbalock held. The function adds the
+ * The driver calls this function with the hbalock held for SLI3 ports or
+ * the ring lock held for SLI4 ports. The function adds the
* new iocb to txcmplq of the given ring. This function always returns
* 0. If this function is called for ELS ring, this function checks if
* there is a vport associated with the ELS command. This function also
@@ -1570,7 +1577,10 @@ static int
lpfc_sli_ringtxcmpl_put(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
struct lpfc_iocbq *piocb)
{
- lockdep_assert_held(&phba->hbalock);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ lockdep_assert_held(&pring->ring_lock);
+ else
+ lockdep_assert_held(&phba->hbalock);
BUG_ON(!piocb);
@@ -2967,8 +2977,8 @@ lpfc_sli_process_unsol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
*
* This function looks up the iocb_lookup table to get the command iocb
* corresponding to the given response iocb using the iotag of the
- * response iocb. This function is called with the hbalock held
- * for sli3 devices or the ring_lock for sli4 devices.
+ * response iocb. The driver calls this function with the hbalock held
+ * for SLI3 ports or the ring lock held for SLI4 ports.
* This function returns the command iocb object if it finds the command
* iocb else returns NULL.
**/
@@ -2979,8 +2989,15 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
{
struct lpfc_iocbq *cmd_iocb = NULL;
uint16_t iotag;
- lockdep_assert_held(&phba->hbalock);
+ spinlock_t *temp_lock = NULL;
+ unsigned long iflag = 0;
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ temp_lock = &pring->ring_lock;
+ else
+ temp_lock = &phba->hbalock;
+
+ spin_lock_irqsave(temp_lock, iflag);
iotag = prspiocb->iocb.ulpIoTag;
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
@@ -2990,10 +3007,12 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
list_del_init(&cmd_iocb->list);
cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
pring->txcmplq_cnt--;
+ spin_unlock_irqrestore(temp_lock, iflag);
return cmd_iocb;
}
}
+ spin_unlock_irqrestore(temp_lock, iflag);
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0317 iotag x%x is out of "
"range: max iotag x%x wd0 x%x\n",
@@ -3009,8 +3028,8 @@ lpfc_sli_iocbq_lookup(struct lpfc_hba *phba,
* @iotag: IOCB tag.
*
* This function looks up the iocb_lookup table to get the command iocb
- * corresponding to the given iotag. This function is called with the
- * hbalock held.
+ * corresponding to the given iotag. The driver calls this function with
+ * the ring lock held because this function is an SLI4 port only helper.
* This function returns the command iocb object if it finds the command
* iocb else returns NULL.
**/
@@ -3019,8 +3038,15 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
struct lpfc_sli_ring *pring, uint16_t iotag)
{
struct lpfc_iocbq *cmd_iocb = NULL;
+ spinlock_t *temp_lock = NULL;
+ unsigned long iflag = 0;
- lockdep_assert_held(&phba->hbalock);
+ if (phba->sli_rev == LPFC_SLI_REV4)
+ temp_lock = &pring->ring_lock;
+ else
+ temp_lock = &phba->hbalock;
+
+ spin_lock_irqsave(temp_lock, iflag);
if (iotag != 0 && iotag <= phba->sli.last_iotag) {
cmd_iocb = phba->sli.iocbq_lookup[iotag];
if (cmd_iocb->iocb_flag & LPFC_IO_ON_TXCMPLQ) {
@@ -3028,10 +3054,12 @@ lpfc_sli_iocbq_lookup_by_tag(struct lpfc_hba *phba,
list_del_init(&cmd_iocb->list);
cmd_iocb->iocb_flag &= ~LPFC_IO_ON_TXCMPLQ;
pring->txcmplq_cnt--;
+ spin_unlock_irqrestore(temp_lock, iflag);
return cmd_iocb;
}
}
+ spin_unlock_irqrestore(temp_lock, iflag);
lpfc_printf_log(phba, KERN_ERR, LOG_SLI,
"0372 iotag x%x lookup error: max iotag (x%x) "
"iocb_flag x%x\n",
@@ -3065,17 +3093,7 @@ lpfc_sli_process_sol_iocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
int rc = 1;
unsigned long iflag;
- /* Based on the iotag field, get the cmd IOCB from the txcmplq */
- if (phba->sli_rev == LPFC_SLI_REV4)
- spin_lock_irqsave(&pring->ring_lock, iflag);
- else
- spin_lock_irqsave(&phba->hbalock, iflag);
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring, saveq);
- if (phba->sli_rev == LPFC_SLI_REV4)
- spin_unlock_irqrestore(&pring->ring_lock, iflag);
- else
- spin_unlock_irqrestore(&phba->hbalock, iflag);
-
if (cmdiocbp) {
if (cmdiocbp->iocb_cmpl) {
/*
@@ -3406,8 +3424,10 @@ lpfc_sli_handle_fast_ring_event(struct lpfc_hba *phba,
break;
}
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
cmdiocbq = lpfc_sli_iocbq_lookup(phba, pring,
&rspiocbq);
+ spin_lock_irqsave(&phba->hbalock, iflag);
if (unlikely(!cmdiocbq))
break;
if (cmdiocbq->iocb_flag & LPFC_DRIVER_ABORTED)
@@ -3601,9 +3621,12 @@ lpfc_sli_sp_handle_rspiocb(struct lpfc_hba *phba, struct lpfc_sli_ring *pring,
case LPFC_ABORT_IOCB:
cmdiocbp = NULL;
- if (irsp->ulpCommand != CMD_XRI_ABORTED_CX)
+ if (irsp->ulpCommand != CMD_XRI_ABORTED_CX) {
+ spin_unlock_irqrestore(&phba->hbalock, iflag);
cmdiocbp = lpfc_sli_iocbq_lookup(phba, pring,
saveq);
+ spin_lock_irqsave(&phba->hbalock, iflag);
+ }
if (cmdiocbp) {
/* Call the specified completion routine */
if (cmdiocbp->iocb_cmpl) {
@@ -12976,13 +12999,11 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
return NULL;
wcqe = &irspiocbq->cq_event.cqe.wcqe_cmpl;
- spin_lock_irqsave(&pring->ring_lock, iflags);
pring->stats.iocb_event++;
/* Look up the ELS command IOCB and create pseudo response IOCB */
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
bf_get(lpfc_wcqe_c_request_tag, wcqe));
if (unlikely(!cmdiocbq)) {
- spin_unlock_irqrestore(&pring->ring_lock, iflags);
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0386 ELS complete with no corresponding "
"cmdiocb: 0x%x 0x%x 0x%x 0x%x\n",
@@ -12992,6 +13013,7 @@ lpfc_sli4_els_wcqe_to_rspiocbq(struct lpfc_hba *phba,
return NULL;
}
+ spin_lock_irqsave(&pring->ring_lock, iflags);
/* Put the iocb back on the txcmplq */
lpfc_sli_ringtxcmpl_put(phba, pring, cmdiocbq);
spin_unlock_irqrestore(&pring->ring_lock, iflags);
@@ -13762,9 +13784,9 @@ lpfc_sli4_fp_handle_fcp_wcqe(struct lpfc_hba *phba, struct lpfc_queue *cq,
/* Look up the FCP command IOCB and create pseudo response IOCB */
spin_lock_irqsave(&pring->ring_lock, iflags);
pring->stats.iocb_event++;
+ spin_unlock_irqrestore(&pring->ring_lock, iflags);
cmdiocbq = lpfc_sli_iocbq_lookup_by_tag(phba, pring,
bf_get(lpfc_wcqe_c_request_tag, wcqe));
- spin_unlock_irqrestore(&pring->ring_lock, iflags);
if (unlikely(!cmdiocbq)) {
lpfc_printf_log(phba, KERN_WARNING, LOG_SLI,
"0374 FCP complete with no corresponding "
diff --git a/drivers/scsi/lpfc/lpfc_version.h b/drivers/scsi/lpfc/lpfc_version.h
index f7d9ef428417..220a932fe943 100644
--- a/drivers/scsi/lpfc/lpfc_version.h
+++ b/drivers/scsi/lpfc/lpfc_version.h
@@ -20,7 +20,7 @@
* included with this package. *
*******************************************************************/
-#define LPFC_DRIVER_VERSION "12.2.0.1"
+#define LPFC_DRIVER_VERSION "12.2.0.2"
#define LPFC_DRIVER_NAME "lpfc"
/* Used for SLI 2/3 */
generated by cgit v1.2.3 (git 2.39.0) at 2024-11-17 05:06:54 +0300