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authorAndrew Vasquez <andrew.vasquez@qlogic.com>2007-05-07 07:43:02 -0700
committerJames Bottomley <jejb@mulgrave.il.steeleye.com>2007-05-08 11:21:45 -0500
commitcbedb601868821c9bfdcf1e9194be160deceeecb (patch)
tree3a5d3f663dcdc8013633e1a20f830e3b28d69a5f /drivers/scsi/qla2xxx
parenta157b1014f9eaf7f80f9105defed2117c5f6653c (diff)
[SCSI] qla2xxx: Add MSI support.
Supported ISP types include ISP2422 and revision-2 type ISP2432 chips. 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_isr.c15
1 files changed, 14 insertions, 1 deletions
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index d4885616cd3..ca463469063 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -1726,6 +1726,17 @@ qla2x00_request_irqs(scsi_qla_host_t *ha)
qla_printk(KERN_WARNING, ha,
"MSI-X: Falling back-to INTa mode -- %d.\n", ret);
skip_msix:
+
+ if (!IS_QLA24XX(ha))
+ goto skip_msi;
+
+ ret = pci_enable_msi(ha->pdev);
+ if (!ret) {
+ DEBUG2(qla_printk(KERN_INFO, ha, "MSI: Enabled.\n"));
+ ha->flags.msi_enabled = 1;
+ }
+skip_msi:
+
ret = request_irq(ha->pdev->irq, ha->isp_ops.intr_handler,
IRQF_DISABLED|IRQF_SHARED, QLA2XXX_DRIVER_NAME, ha);
if (!ret) {
@@ -1746,6 +1757,8 @@ qla2x00_free_irqs(scsi_qla_host_t *ha)
if (ha->flags.msix_enabled)
qla24xx_disable_msix(ha);
- else if (ha->flags.inta_enabled)
+ else if (ha->flags.inta_enabled) {
free_irq(ha->host->irq, ha);
+ pci_disable_msi(ha->pdev);
+ }
}