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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2006-11-22 08:24:48 -0800
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2006-11-22 16:43:28 -0600
commit1e99e33ad94aa363e01cdfc2fc9df93338907fe6 (patch)
tree676965472ffc1faeb9896c19fae19ea3e8b41da1 /drivers/scsi/qla2xxx/qla_os.c
parentd19044c32baadeb80e135027124a9e845c6f057c (diff)
[SCSI] qla2xxx: add asynchronous scsi scanning support.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_os.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c33
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index 1cc8febcbad..cbe0cad83b6 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -95,6 +95,8 @@ MODULE_PARM_DESC(ql2xqfullrampup,
*/
static int qla2xxx_slave_configure(struct scsi_device * device);
static int qla2xxx_slave_alloc(struct scsi_device *);
+static int qla2xxx_scan_finished(struct Scsi_Host *, unsigned long time);
+static void qla2xxx_scan_start(struct Scsi_Host *);
static void qla2xxx_slave_destroy(struct scsi_device *);
static int qla2x00_queuecommand(struct scsi_cmnd *cmd,
void (*fn)(struct scsi_cmnd *));
@@ -124,6 +126,8 @@ static struct scsi_host_template qla2x00_driver_template = {
.slave_alloc = qla2xxx_slave_alloc,
.slave_destroy = qla2xxx_slave_destroy,
+ .scan_finished = qla2xxx_scan_finished,
+ .scan_start = qla2xxx_scan_start,
.change_queue_depth = qla2x00_change_queue_depth,
.change_queue_type = qla2x00_change_queue_type,
.this_id = -1,
@@ -1366,6 +1370,29 @@ qla24xx_disable_intrs(scsi_qla_host_t *ha)
spin_unlock_irqrestore(&ha->hardware_lock, flags);
}
+static void
+qla2xxx_scan_start(struct Scsi_Host *shost)
+{
+ scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
+
+ set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
+ set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
+ set_bit(RSCN_UPDATE, &ha->dpc_flags);
+}
+
+static int
+qla2xxx_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ scsi_qla_host_t *ha = (scsi_qla_host_t *)shost->hostdata;
+
+ if (!ha->host)
+ return 1;
+ if (time > ha->loop_reset_delay * HZ)
+ return 1;
+
+ return atomic_read(&ha->loop_state) == LOOP_READY;
+}
+
/*
* PCI driver interface
*/
@@ -1631,10 +1658,6 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
pci_set_drvdata(pdev, ha);
- /* Start link scan. */
- set_bit(LOOP_RESYNC_NEEDED, &ha->dpc_flags);
- set_bit(LOCAL_LOOP_UPDATE, &ha->dpc_flags);
- set_bit(RSCN_UPDATE, &ha->dpc_flags);
ha->flags.init_done = 1;
ha->flags.online = 1;
@@ -1644,6 +1667,8 @@ qla2x00_probe_one(struct pci_dev *pdev, const struct pci_device_id *id)
if (ret)
goto probe_failed;
+ scsi_scan_host(host);
+
qla2x00_alloc_sysfs_attr(ha);
qla2x00_init_host_attr(ha);