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authorAnirban Chakraborty <anirban.chakraborty@qlogic.com>2009-12-02 10:36:55 -0800
committerJames Bottomley <James.Bottomley@suse.de>2009-12-10 08:54:19 -0600
commit3155754a6b7985a80c41d84dd06530ff543f52a8 (patch)
treeba11ce0747dbfad6ecdcb6d42d71ca8675122f63 /drivers/scsi/qla2xxx/qla_mid.c
parentc45dd30551c371cb1e7a742136b8b36f6aba63f8 (diff)
downloadop-kernel-dev-3155754a6b7985a80c41d84dd06530ff543f52a8.zip
op-kernel-dev-3155754a6b7985a80c41d84dd06530ff543f52a8.tar.gz
[SCSI] qla2xxx: fix for multiqueue in MISX disabled case
Fix to accommodate a hardware bug in multiqueue mode that does not work properly when acknowledgement of MSIX Interrupts is disabled. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@qlogic.com> Signed-off-by: Giridhar Malavali <giridhar.malavali@qlogic.com> Signed-off-by: James Bottomley <James.Bottomley@suse.de>
Diffstat (limited to 'drivers/scsi/qla2xxx/qla_mid.c')
-rw-r--r--drivers/scsi/qla2xxx/qla_mid.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/qla2xxx/qla_mid.c b/drivers/scsi/qla2xxx/qla_mid.c
index a47d343..2a4c7f4 100644
--- a/drivers/scsi/qla2xxx/qla_mid.c
+++ b/drivers/scsi/qla2xxx/qla_mid.c
@@ -696,6 +696,10 @@ qla25xx_create_rsp_que(struct qla_hw_data *ha, uint16_t options,
/* Use alternate PCI devfn */
if (LSB(rsp->rid))
options |= BIT_5;
+ /* Enable MSIX handshake mode on for uncapable adapters */
+ if (!IS_MSIX_NACK_CAPABLE(ha))
+ options |= BIT_6;
+
rsp->options = options;
rsp->id = que_id;
reg = ISP_QUE_REG(ha, que_id);
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