diff options
| author | Andrew Vasquez <andrew.vasquez@qlogic.com> | 2006-11-22 17:24:48 +0100 |
|---|---|---|
| committer | James Bottomley <jejb@mulgrave.il.steeleye.com> | 2006-11-22 23:43:28 +0100 |
| commit | 1e99e33ad94aa363e01cdfc2fc9df93338907fe6 (patch) | |
| tree | 676965472ffc1faeb9896c19fae19ea3e8b41da1 /drivers/scsi/qla2xxx | |
| parent | [SCSI] qla2xxx: defer topology discovery to DPC thread during initialization. (diff) | |
| download | linux-1e99e33ad94aa363e01cdfc2fc9df93338907fe6.tar.xz linux-1e99e33ad94aa363e01cdfc2fc9df93338907fe6.zip | |
[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')
| -rw-r--r-- | drivers/scsi/qla2xxx/qla_os.c | 33 |
1 files changed, 29 insertions, 4 deletions
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c index 1cc8febcbadb..cbe0cad83b68 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); |