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authorTej Parkash <tej.parkash@qlogic.com>2013-12-16 06:49:42 -0500
committerJames Bottomley <JBottomley@Parallels.com>2014-03-15 10:19:14 -0700
commit1b3d399cf6877c8d9abd63a2aff41b709a38fbd1 (patch)
tree4d416011a579d19e5103dbcd7d465d4ecb4ea10c /drivers/scsi/qla4xxx/ql4_nx.c
parent831805a150e936defc9b54fa069a3cdd9529eedb (diff)
[SCSI] qla4xxx: Fix processing response queue during probe
Issue: While booting with kdump kernel, driver receive IOCB interrupts for which it is not ready which results in processing them before init_firmware during driver probe Fix: Two steps solution 1. Make driver ready to process the interrupt before interupts handlers is registered. 2. Stop driver processing iocb interrupts if not generated as per firmware protocol i.e R2H bit set Signed-off-by: Tej Parkash <tej.parkash@qlogic.com> Signed-off-by: Vikas Chaudhary <vikas.chaudhary@qlogic.com> Reviewed-by: Mike Christie <michaelc@cs.wisc.edu> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
Diffstat (limited to 'drivers/scsi/qla4xxx/ql4_nx.c')
-rw-r--r--drivers/scsi/qla4xxx/ql4_nx.c4
1 files changed, 4 insertions, 0 deletions
diff --git a/drivers/scsi/qla4xxx/ql4_nx.c b/drivers/scsi/qla4xxx/ql4_nx.c
index cbc68f915cc6..bcf3e43e024a 100644
--- a/drivers/scsi/qla4xxx/ql4_nx.c
+++ b/drivers/scsi/qla4xxx/ql4_nx.c
@@ -3190,6 +3190,10 @@ int qla4_8xxx_load_risc(struct scsi_qla_host *ha)
retval = qla4_8xxx_device_state_handler(ha);
+ /* Initialize request and response queues. */
+ if (retval == QLA_SUCCESS)
+ qla4xxx_init_rings(ha);
+
if (retval == QLA_SUCCESS && !test_bit(AF_IRQ_ATTACHED, &ha->flags))
retval = qla4xxx_request_irqs(ha);