From f4a8dbc7f6ca8c0a7ec4f112320899b6b77d7e17 Mon Sep 17 00:00:00 2001
From: Shyam Sundar <shyam.sundar@qlogic.com>
Date: Mon, 12 Nov 2007 10:30:59 -0800
Subject: [PATCH] [SCSI] qla2xxx: Properly handle Vport
state-change-notifications.
Drivers do SCRs for each Vport. When something changes in the
fabric, firmware generates one interrupt for each RSCN. Based on
the current implementation, in each case, we make recursive calls
to handle RSCN for physical and each subsequent virtual ports.
The fix is to also take into consideration the vp_idx, which is
set by the firmware to indicate the vport the RSCN was meant for.
Signed-off-by: Andrew Vasquez <andrew.vasquez@qlogic.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
---
drivers/scsi/qla2xxx/qla_isr.c | 7 +++++--
1 file changed, 5 insertions(+), 2 deletions(-)
diff --git a/drivers/scsi/qla2xxx/qla_isr.c b/drivers/scsi/qla2xxx/qla_isr.c
index 343af399c95cc7..798b7e87e2e14e 100644
--- a/drivers/scsi/qla2xxx/qla_isr.c
+++ b/drivers/scsi/qla2xxx/qla_isr.c
@@ -575,12 +575,15 @@ qla2x00_async_event(scsi_qla_host_t *ha, uint16_t *mb)
/* Check if the Vport has issued a SCR */
if (ha->parent && test_bit(VP_SCR_NEEDED, &ha->vp_flags))
break;
+ /* Only handle SCNs for our Vport index. */
+ if (ha->flags.npiv_supported && ha->vp_idx != mb[3])
+ break;
DEBUG2(printk("scsi(%ld): Asynchronous RSCR UPDATE.\n",
ha->host_no));
DEBUG(printk(KERN_INFO
- "scsi(%ld): RSCN database changed -- %04x %04x.\n",
- ha->host_no, mb[1], mb[2]));
+ "scsi(%ld): RSCN database changed -- %04x %04x %04x.\n",
+ ha->host_no, mb[1], mb[2], mb[3]));
rscn_entry = (mb[1] << 16) | mb[2];
host_pid = (ha->d_id.b.domain << 16) | (ha->d_id.b.area << 8) |
--
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