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path: root/drivers/scsi/scsi_transport_fc.c
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Diffstat (limited to 'drivers/scsi/scsi_transport_fc.c')
-rw-r--r--drivers/scsi/scsi_transport_fc.c107
1 files changed, 57 insertions, 50 deletions
diff --git a/drivers/scsi/scsi_transport_fc.c b/drivers/scsi/scsi_transport_fc.c
index 56823fd1fb8..1e71abf0607 100644
--- a/drivers/scsi/scsi_transport_fc.c
+++ b/drivers/scsi/scsi_transport_fc.c
@@ -40,31 +40,7 @@
static int fc_queue_work(struct Scsi_Host *, struct work_struct *);
static void fc_vport_sched_delete(struct work_struct *work);
-
-/*
- * This is a temporary carrier for creating a vport. It will eventually
- * be replaced by a real message definition for sgio or netlink.
- *
- * fc_vport_identifiers: This set of data contains all elements
- * to uniquely identify and instantiate a FC virtual port.
- *
- * Notes:
- * symbolic_name: The driver is to append the symbolic_name string data
- * to the symbolic_node_name data that it generates by default.
- * the resulting combination should then be registered with the switch.
- * It is expected that things like Xen may stuff a VM title into
- * this field.
- */
-struct fc_vport_identifiers {
- u64 node_name;
- u64 port_name;
- u32 roles;
- bool disable;
- enum fc_port_type vport_type; /* only FC_PORTTYPE_NPIV allowed */
- char symbolic_name[FC_VPORT_SYMBOLIC_NAMELEN];
-};
-
-static int fc_vport_create(struct Scsi_Host *shost, int channel,
+static int fc_vport_setup(struct Scsi_Host *shost, int channel,
struct device *pdev, struct fc_vport_identifiers *ids,
struct fc_vport **vport);
@@ -1760,7 +1736,7 @@ store_fc_host_vport_create(struct device *dev, struct device_attribute *attr,
vid.disable = false; /* always enabled */
/* we only allow support on Channel 0 !!! */
- stat = fc_vport_create(shost, 0, &shost->shost_gendev, &vid, &vport);
+ stat = fc_vport_setup(shost, 0, &shost->shost_gendev, &vid, &vport);
return stat ? stat : count;
}
static FC_DEVICE_ATTR(host, vport_create, S_IWUSR, NULL,
@@ -1950,15 +1926,15 @@ static int fc_vport_match(struct attribute_container *cont,
* Notes:
* This routine assumes no locks are held on entry.
*/
-static enum scsi_eh_timer_return
+static enum blk_eh_timer_return
fc_timed_out(struct scsi_cmnd *scmd)
{
struct fc_rport *rport = starget_to_rport(scsi_target(scmd->device));
if (rport->port_state == FC_PORTSTATE_BLOCKED)
- return EH_RESET_TIMER;
+ return BLK_EH_RESET_TIMER;
- return EH_NOT_HANDLED;
+ return BLK_EH_NOT_HANDLED;
}
/*
@@ -2157,8 +2133,7 @@ fc_attach_transport(struct fc_function_template *ft)
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(roles);
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(port_state);
SETUP_PRIVATE_RPORT_ATTRIBUTE_RD(scsi_target_id);
- if (ft->terminate_rport_io)
- SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo);
+ SETUP_PRIVATE_RPORT_ATTRIBUTE_RW(fast_io_fail_tmo);
BUG_ON(count > FC_RPORT_NUM_ATTRS);
@@ -2352,6 +2327,22 @@ fc_remove_host(struct Scsi_Host *shost)
}
EXPORT_SYMBOL(fc_remove_host);
+static void fc_terminate_rport_io(struct fc_rport *rport)
+{
+ struct Scsi_Host *shost = rport_to_shost(rport);
+ struct fc_internal *i = to_fc_internal(shost->transportt);
+
+ /* Involve the LLDD if possible to terminate all io on the rport. */
+ if (i->f->terminate_rport_io)
+ i->f->terminate_rport_io(rport);
+
+ /*
+ * must unblock to flush queued IO. The caller will have set
+ * the port_state or flags, so that fc_remote_port_chkready will
+ * fail IO.
+ */
+ scsi_target_unblock(&rport->dev);
+}
/**
* fc_starget_delete - called to delete the scsi decendents of an rport
@@ -2364,13 +2355,8 @@ fc_starget_delete(struct work_struct *work)
{
struct fc_rport *rport =
container_of(work, struct fc_rport, stgt_delete_work);
- struct Scsi_Host *shost = rport_to_shost(rport);
- struct fc_internal *i = to_fc_internal(shost->transportt);
-
- /* Involve the LLDD if possible to terminate all io on the rport. */
- if (i->f->terminate_rport_io)
- i->f->terminate_rport_io(rport);
+ fc_terminate_rport_io(rport);
scsi_remove_target(&rport->dev);
}
@@ -2396,10 +2382,7 @@ fc_rport_final_delete(struct work_struct *work)
if (rport->flags & FC_RPORT_SCAN_PENDING)
scsi_flush_work(shost);
- /* involve the LLDD to terminate all pending i/o */
- if (i->f->terminate_rport_io)
- i->f->terminate_rport_io(rport);
-
+ fc_terminate_rport_io(rport);
/*
* Cancel any outstanding timers. These should really exist
* only when rmmod'ing the LLDD and we're asking for
@@ -2663,7 +2646,8 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
spin_lock_irqsave(shost->host_lock, flags);
- rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
+ rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT |
+ FC_RPORT_DEVLOSS_PENDING);
/* if target, initiate a scan */
if (rport->scsi_target_id != -1) {
@@ -2726,6 +2710,7 @@ fc_remote_port_add(struct Scsi_Host *shost, int channel,
rport->port_id = ids->port_id;
rport->roles = ids->roles;
rport->port_state = FC_PORTSTATE_ONLINE;
+ rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT;
if (fci->f->dd_fcrport_size)
memset(rport->dd_data, 0,
@@ -2808,7 +2793,6 @@ void
fc_remote_port_delete(struct fc_rport *rport)
{
struct Scsi_Host *shost = rport_to_shost(rport);
- struct fc_internal *i = to_fc_internal(shost->transportt);
int timeout = rport->dev_loss_tmo;
unsigned long flags;
@@ -2854,7 +2838,7 @@ fc_remote_port_delete(struct fc_rport *rport)
/* see if we need to kill io faster than waiting for device loss */
if ((rport->fast_io_fail_tmo != -1) &&
- (rport->fast_io_fail_tmo < timeout) && (i->f->terminate_rport_io))
+ (rport->fast_io_fail_tmo < timeout))
fc_queue_devloss_work(shost, &rport->fail_io_work,
rport->fast_io_fail_tmo * HZ);
@@ -2930,7 +2914,8 @@ fc_remote_port_rolechg(struct fc_rport *rport, u32 roles)
fc_flush_devloss(shost);
spin_lock_irqsave(shost->host_lock, flags);
- rport->flags &= ~FC_RPORT_DEVLOSS_PENDING;
+ rport->flags &= ~(FC_RPORT_FAST_FAIL_TIMEDOUT |
+ FC_RPORT_DEVLOSS_PENDING);
spin_unlock_irqrestore(shost->host_lock, flags);
/* ensure any stgt delete functions are done */
@@ -3025,6 +3010,7 @@ fc_timeout_deleted_rport(struct work_struct *work)
rport->supported_classes = FC_COS_UNSPECIFIED;
rport->roles = FC_PORT_ROLE_UNKNOWN;
rport->port_state = FC_PORTSTATE_NOTPRESENT;
+ rport->flags &= ~FC_RPORT_FAST_FAIL_TIMEDOUT;
/* remove the identifiers that aren't used in the consisting binding */
switch (fc_host->tgtid_bind_type) {
@@ -3067,13 +3053,12 @@ fc_timeout_fail_rport_io(struct work_struct *work)
{
struct fc_rport *rport =
container_of(work, struct fc_rport, fail_io_work.work);
- struct Scsi_Host *shost = rport_to_shost(rport);
- struct fc_internal *i = to_fc_internal(shost->transportt);
if (rport->port_state != FC_PORTSTATE_BLOCKED)
return;
- i->f->terminate_rport_io(rport);
+ rport->flags |= FC_RPORT_FAST_FAIL_TIMEDOUT;
+ fc_terminate_rport_io(rport);
}
/**
@@ -3103,7 +3088,7 @@ fc_scsi_scan_rport(struct work_struct *work)
/**
- * fc_vport_create - allocates and creates a FC virtual port.
+ * fc_vport_setup - allocates and creates a FC virtual port.
* @shost: scsi host the virtual port is connected to.
* @channel: Channel on shost port connected to.
* @pdev: parent device for vport
@@ -3118,7 +3103,7 @@ fc_scsi_scan_rport(struct work_struct *work)
* This routine assumes no locks are held on entry.
*/
static int
-fc_vport_create(struct Scsi_Host *shost, int channel, struct device *pdev,
+fc_vport_setup(struct Scsi_Host *shost, int channel, struct device *pdev,
struct fc_vport_identifiers *ids, struct fc_vport **ret_vport)
{
struct fc_host_attrs *fc_host = shost_to_fc_host(shost);
@@ -3231,6 +3216,28 @@ delete_vport:
return error;
}
+/**
+ * fc_vport_create - Admin App or LLDD requests creation of a vport
+ * @shost: scsi host the virtual port is connected to.
+ * @channel: channel on shost port connected to.
+ * @ids: The world wide names, FC4 port roles, etc for
+ * the virtual port.
+ *
+ * Notes:
+ * This routine assumes no locks are held on entry.
+ */
+struct fc_vport *
+fc_vport_create(struct Scsi_Host *shost, int channel,
+ struct fc_vport_identifiers *ids)
+{
+ int stat;
+ struct fc_vport *vport;
+
+ stat = fc_vport_setup(shost, channel, &shost->shost_gendev,
+ ids, &vport);
+ return stat ? NULL : vport;
+}
+EXPORT_SYMBOL(fc_vport_create);
/**
* fc_vport_terminate - Admin App or LLDD requests termination of a vport
generated by cgit v1.2.3-70-g09d2 (git 2.46.0) at 2024-11-23 23:30:45 +0000