Before use the request and response queue addr, make sure it has wrote
to the registers.
Signed-off-by: Joe Jin <joe....@oracle.com>
Cc: Jitendra Kalsaria <jitendra.kalsa...@qlogic.com>
Cc: Ron Mercer <ron.mer...@qlogic.com>
---
drivers/net/ethernet/qlogic/qla3xxx.c | 9 +++++++--
1 file changed, 7 insertions(+), 2 deletions(-)
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c
b/drivers/net/ethernet/qlogic/qla3xxx.c
index df09b1c..6407d0d 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2525,6 +2525,13 @@ static int ql_alloc_net_req_rsp_queues(struct
ql3_adapter *qdev)
qdev->req_q_size =
(u32) (NUM_REQ_Q_ENTRIES * sizeof(struct ob_mac_iocb_req));
+ qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
+
+ /* The barrier is required to ensure request and response queue
+ * addr writes to the registers.
+ */
+ wmb();
+
qdev->req_q_virt_addr =
pci_alloc_consistent(qdev->pdev,
(size_t) qdev->req_q_size,
@@ -2536,8 +2543,6 @@ static int ql_alloc_net_req_rsp_queues(struct ql3_adapter
*qdev)
return -ENOMEM;
}
- qdev->rsp_q_size = NUM_RSP_Q_ENTRIES * sizeof(struct net_rsp_iocb);
-
qdev->rsp_q_virt_addr =
pci_alloc_consistent(qdev->pdev,
(size_t) qdev->rsp_q_size,
--
1.7.11.7
--
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