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-rw-r--r--drivers/scsi/fnic/fnic_scsi.c20
-rw-r--r--drivers/scsi/lpfc/lpfc_scsi.c30
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c25
-rw-r--r--drivers/scsi/scsi_transport_fc.c26
4 files changed, 36 insertions, 65 deletions
diff --git a/drivers/scsi/fnic/fnic_scsi.c b/drivers/scsi/fnic/fnic_scsi.c
index b5d17385939b..8d26d7a9f01b 100644
--- a/drivers/scsi/fnic/fnic_scsi.c
+++ b/drivers/scsi/fnic/fnic_scsi.c
@@ -1225,22 +1225,6 @@ void fnic_terminate_rport_io(struct fc_rport *rport)
}
-static void fnic_block_error_handler(struct scsi_cmnd *sc)
-{
- struct Scsi_Host *shost = sc->device->host;
- struct fc_rport *rport = starget_to_rport(scsi_target(sc->device));
- unsigned long flags;
-
- spin_lock_irqsave(shost->host_lock, flags);
- while (rport->port_state == FC_PORTSTATE_BLOCKED) {
- spin_unlock_irqrestore(shost->host_lock, flags);
- msleep(1000);
- spin_lock_irqsave(shost->host_lock, flags);
- }
- spin_unlock_irqrestore(shost->host_lock, flags);
-
-}
-
/*
* This function is exported to SCSI for sending abort cmnds.
* A SCSI IO is represented by a io_req in the driver.
@@ -1260,7 +1244,7 @@ int fnic_abort_cmd(struct scsi_cmnd *sc)
DECLARE_COMPLETION_ONSTACK(tm_done);
/* Wait for rport to unblock */
- fnic_block_error_handler(sc);
+ fc_block_scsi_eh(sc);
/* Get local-port, check ready and link up */
lp = shost_priv(sc->device->host);
@@ -1542,7 +1526,7 @@ int fnic_device_reset(struct scsi_cmnd *sc)
DECLARE_COMPLETION_ONSTACK(tm_done);
/* Wait for rport to unblock */
- fnic_block_error_handler(sc);
+ fc_block_scsi_eh(sc);
/* Get local-port, check ready and link up */
lp = shost_priv(sc->device->host);
diff --git a/drivers/scsi/lpfc/lpfc_scsi.c b/drivers/scsi/lpfc/lpfc_scsi.c
index c88f59f0ce30..e25179193a82 100644
--- a/drivers/scsi/lpfc/lpfc_scsi.c
+++ b/drivers/scsi/lpfc/lpfc_scsi.c
@@ -2917,28 +2917,6 @@ lpfc_queuecommand(struct scsi_cmnd *cmnd, void (*done) (struct scsi_cmnd *))
}
/**
- * lpfc_block_error_handler - Routine to block error handler
- * @cmnd: Pointer to scsi_cmnd data structure.
- *
- * This routine blocks execution till fc_rport state is not FC_PORSTAT_BLCOEKD.
- **/
-static void
-lpfc_block_error_handler(struct scsi_cmnd *cmnd)
-{
- struct Scsi_Host *shost = cmnd->device->host;
- struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
-
- spin_lock_irq(shost->host_lock);
- while (rport->port_state == FC_PORTSTATE_BLOCKED) {
- spin_unlock_irq(shost->host_lock);
- msleep(1000);
- spin_lock_irq(shost->host_lock);
- }
- spin_unlock_irq(shost->host_lock);
- return;
-}
-
-/**
* lpfc_abort_handler - scsi_host_template eh_abort_handler entry point
* @cmnd: Pointer to scsi_cmnd data structure.
*
@@ -2961,7 +2939,7 @@ lpfc_abort_handler(struct scsi_cmnd *cmnd)
int ret = SUCCESS;
DECLARE_WAIT_QUEUE_HEAD_ONSTACK(waitq);
- lpfc_block_error_handler(cmnd);
+ fc_block_scsi_eh(cmnd);
lpfc_cmd = (struct lpfc_scsi_buf *)cmnd->host_scribble;
BUG_ON(!lpfc_cmd);
@@ -3259,7 +3237,7 @@ lpfc_device_reset_handler(struct scsi_cmnd *cmnd)
struct lpfc_scsi_event_header scsi_event;
int status;
- lpfc_block_error_handler(cmnd);
+ fc_block_scsi_eh(cmnd);
status = lpfc_chk_tgt_mapped(vport, cmnd);
if (status == FAILED) {
@@ -3318,7 +3296,7 @@ lpfc_target_reset_handler(struct scsi_cmnd *cmnd)
struct lpfc_scsi_event_header scsi_event;
int status;
- lpfc_block_error_handler(cmnd);
+ fc_block_scsi_eh(cmnd);
status = lpfc_chk_tgt_mapped(vport, cmnd);
if (status == FAILED) {
@@ -3384,7 +3362,7 @@ lpfc_bus_reset_handler(struct scsi_cmnd *cmnd)
fc_host_post_vendor_event(shost, fc_get_event_number(),
sizeof(scsi_event), (char *)&scsi_event, LPFC_NL_VENDOR_ID);
- lpfc_block_error_handler(cmnd);
+ fc_block_scsi_eh(cmnd);
/*
* Since the driver manages a single bus device, reset all
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index d69744a62fe4..41669357b186 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -728,23 +728,6 @@ qla2x00_abort_fcport_cmds(fc_port_t *fcport)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
-static void
-qla2x00_block_error_handler(struct scsi_cmnd *cmnd)
-{
- struct Scsi_Host *shost = cmnd->device->host;
- struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
- unsigned long flags;
-
- spin_lock_irqsave(shost->host_lock, flags);
- while (rport->port_state == FC_PORTSTATE_BLOCKED) {
- spin_unlock_irqrestore(shost->host_lock, flags);
- msleep(1000);
- spin_lock_irqsave(shost->host_lock, flags);
- }
- spin_unlock_irqrestore(shost->host_lock, flags);
- return;
-}
-
/**************************************************************************
* qla2xxx_eh_abort
*
@@ -774,7 +757,7 @@ qla2xxx_eh_abort(struct scsi_cmnd *cmd)
struct req_que *req = vha->req;
srb_t *spt;
- qla2x00_block_error_handler(cmd);
+ fc_block_scsi_eh(cmd);
if (!CMD_SP(cmd))
return SUCCESS;
@@ -905,7 +888,7 @@ __qla2xxx_eh_generic_reset(char *name, enum nexus_wait_type type,
fc_port_t *fcport = (struct fc_port *) cmd->device->hostdata;
int err;
- qla2x00_block_error_handler(cmd);
+ fc_block_scsi_eh(cmd);
if (!fcport)
return FAILED;
@@ -985,7 +968,7 @@ qla2xxx_eh_bus_reset(struct scsi_cmnd *cmd)
unsigned long serial;
srb_t *sp = (srb_t *) CMD_SP(cmd);
- qla2x00_block_error_handler(cmd);
+ fc_block_scsi_eh(cmd);
id = cmd->device->id;
lun = cmd->device->lun;
@@ -1048,7 +1031,7 @@ qla2xxx_eh_host_reset(struct scsi_cmnd *cmd)
srb_t *sp = (srb_t *) CMD_SP(cmd);
scsi_qla_host_t *base_vha = pci_get_drvdata(ha->pdev);
- qla2x00_block_error_handler(cmd);
+ fc_block_scsi_eh(cmd);
id = cmd->device->id;
lun = cmd->device->lun;
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index f436e033adaf..3ce56b3b2cd7 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -27,6 +27,7 @@
*/
#include <linux/module.h>
#include <linux/init.h>
+#include <linux/delay.h>
#include <scsi/scsi_device.h>
#include <scsi/scsi_host.h>
#include <scsi/scsi_transport.h>
@@ -3144,6 +3145,31 @@ fc_scsi_scan_rport(struct work_struct *work)
spin_unlock_irqrestore(shost->host_lock, flags);
}
+/**
+ * fc_block_scsi_eh - Block SCSI eh thread for blocked fc_rport
+ * @cmnd: SCSI command that scsi_eh is trying to recover
+ *
+ * This routine can be called from a FC LLD scsi_eh callback. It
+ * blocks the scsi_eh thread until the fc_rport leaves the
+ * FC_PORTSTATE_BLOCKED. This is necessary to avoid the scsi_eh
+ * failing recovery actions for blocked rports which would lead to
+ * offlined SCSI devices.
+ */
+void fc_block_scsi_eh(struct scsi_cmnd *cmnd)
+{
+ struct Scsi_Host *shost = cmnd->device->host;
+ struct fc_rport *rport = starget_to_rport(scsi_target(cmnd->device));
+ unsigned long flags;
+
+ spin_lock_irqsave(shost->host_lock, flags);
+ while (rport->port_state == FC_PORTSTATE_BLOCKED) {
+ spin_unlock_irqrestore(shost->host_lock, flags);
+ msleep(1000);
+ spin_lock_irqsave(shost->host_lock, flags);
+ }
+ spin_unlock_irqrestore(shost->host_lock, flags);
+}
+EXPORT_SYMBOL(fc_block_scsi_eh);
/**
* fc_vport_setup - allocates and creates a FC virtual port.
generated by cgit v1.2.3 (git 2.25.1) at 2024-11-29 03:08:41 +0000