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[04/14] qla2xxx: Pause risc before manipulating risc semaphore.

Message ID 1438709884-623-5-git-send-email-himanshu.madhani@qlogic.com (mailing list archive)
State New, archived
Headers show

Commit Message

Himanshu Madhani Aug. 4, 2015, 5:37 p.m. UTC 
From: Joe Carnuccio <joe.carnuccio@qlogic.com>

Signed-off-by: Joe Carnuccio <joe.carnuccio@qlogic.com>
Signed-off-by: Himanshu Madhani <himanshu.madhani@qlogic.com>
---
 drivers/scsi/qla2xxx/qla_init.c |    3 +++
 1 files changed, 3 insertions(+), 0 deletions(-)
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Patch

diff --git a/drivers/scsi/qla2xxx/qla_init.c b/drivers/scsi/qla2xxx/qla_init.c
index 6930966..5d04c8c 100644
--- a/drivers/scsi/qla2xxx/qla_init.c
+++ b/drivers/scsi/qla2xxx/qla_init.c
@@ -1287,6 +1287,9 @@  qla25xx_manipulate_risc_semaphore(scsi_qla_host_t *vha)
 	    vha->hw->pdev->subsystem_device != 0x0240)
 		return;
 
+	WRT_REG_DWORD(&vha->hw->iobase->isp24.hccr, HCCRX_SET_RISC_PAUSE);
+	udelay(100);
+
 attempt:
 	timeout_msec = TIMEOUT_SEMAPHORE;
 	n = timeout_msec / delta_msec;