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authorDarrick J. Wong <djwong@us.ibm.com>2007-01-11 14:15:38 -0800
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-01-13 16:20:23 -0600
commite7571c152dea576f8c80ca240befc93d4f16551d (patch)
treed3d7010b1daf107f93fa8dc23ff8783cab91a544 /drivers/scsi/aic94xx
parentfe3b5bfe73ace420709f0cfb198b0ffc704bd38b (diff)
downloadop-kernel-dev-e7571c152dea576f8c80ca240befc93d4f16551d.zip
op-kernel-dev-e7571c152dea576f8c80ca240befc93d4f16551d.tar.gz
[SCSI] aic94xx: Scan SAS devices asynchronously
Add the necessary hooks to the aic94xx driver to support the asynchronous SCSI device scan infrastructure. Signed-off-by: Darrick J. Wong <djwong@us.ibm.com> Signed-off-by: Matthew Wilcox <matthew@wil.cx> Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>
Diffstat (limited to 'drivers/scsi/aic94xx')
-rw-r--r--drivers/scsi/aic94xx/aic94xx_init.c41
1 files changed, 28 insertions, 13 deletions
diff --git a/drivers/scsi/aic94xx/aic94xx_init.c b/drivers/scsi/aic94xx/aic94xx_init.c
index 7344f4d..a6fb33f 100644
--- a/drivers/scsi/aic94xx/aic94xx_init.c
+++ b/drivers/scsi/aic94xx/aic94xx_init.c
@@ -57,6 +57,8 @@ MODULE_PARM_DESC(collector, "\n"
char sas_addr_str[2*SAS_ADDR_SIZE + 1] = "";
static struct scsi_transport_template *aic94xx_transport_template;
+static int asd_scan_finished(struct Scsi_Host *, unsigned long);
+static void asd_scan_start(struct Scsi_Host *);
static struct scsi_host_template aic94xx_sht = {
.module = THIS_MODULE,
@@ -66,6 +68,8 @@ static struct scsi_host_template aic94xx_sht = {
.target_alloc = sas_target_alloc,
.slave_configure = sas_slave_configure,
.slave_destroy = sas_slave_destroy,
+ .scan_finished = asd_scan_finished,
+ .scan_start = asd_scan_start,
.change_queue_depth = sas_change_queue_depth,
.change_queue_type = sas_change_queue_type,
.bios_param = sas_bios_param,
@@ -672,21 +676,10 @@ static int __devinit asd_pci_probe(struct pci_dev *dev,
if (err)
goto Err_reg_sas;
- err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
- if (err) {
- asd_printk("coudln't enable phys, err:%d\n", err);
- goto Err_en_phys;
- }
- ASD_DPRINTK("enabled phys\n");
- /* give the phy enabling interrupt event time to come in (1s
- * is empirically about all it takes) */
- ssleep(1);
- /* Wait for discovery to finish */
- scsi_flush_work(asd_ha->sas_ha.core.shost);
+ scsi_scan_host(shost);
return 0;
-Err_en_phys:
- asd_unregister_sas_ha(asd_ha);
+
Err_reg_sas:
asd_remove_dev_attrs(asd_ha);
Err_dev_attrs:
@@ -779,6 +772,28 @@ static void __devexit asd_pci_remove(struct pci_dev *dev)
return;
}
+static void asd_scan_start(struct Scsi_Host *shost)
+{
+ struct asd_ha_struct *asd_ha;
+ int err;
+
+ asd_ha = SHOST_TO_SAS_HA(shost)->lldd_ha;
+ err = asd_enable_phys(asd_ha, asd_ha->hw_prof.enabled_phys);
+ if (err)
+ asd_printk("Couldn't enable phys, err:%d\n", err);
+}
+
+static int asd_scan_finished(struct Scsi_Host *shost, unsigned long time)
+{
+ /* give the phy enabling interrupt event time to come in (1s
+ * is empirically about all it takes) */
+ if (time < HZ)
+ return 0;
+ /* Wait for discovery to finish */
+ scsi_flush_work(shost);
+ return 1;
+}
+
static ssize_t asd_version_show(struct device_driver *driver, char *buf)
{
return snprintf(buf, PAGE_SIZE, "%s\n", ASD_DRIVER_VERSION);
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