diff options
| author | Tej Parkash <tej.parkash@qlogic.com> | 2013-12-16 06:49:42 -0500 |
|---|---|---|
| committer | James Bottomley <JBottomley@Parallels.com> | 2014-03-15 10:19:14 -0700 |
| commit | 1b3d399cf6877c8d9abd63a2aff41b709a38fbd1 (patch) | |
| tree | 4d416011a579d19e5103dbcd7d465d4ecb4ea10c /drivers/scsi/qla4xxx/ql4_nx.c | |
| parent | 831805a150e936defc9b54fa069a3cdd9529eedb (diff) | |
| download | talos-obmc-linux-1b3d399cf6877c8d9abd63a2aff41b709a38fbd1.tar.gz talos-obmc-linux-1b3d399cf6877c8d9abd63a2aff41b709a38fbd1.zip | |
[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.c | 4 |
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); |
