Make sure req_q_phy_addr write to the register.
Signed-off-by: Joe Jin <joe....@oracle.com>
Cc: Ron Mercer <ron.mer...@qlogic.com>
Cc: Jitendra Kalsaria <jitendra.kalsa...@qlogic.com>
---
drivers/net/ethernet/qlogic/qla3xxx.c | 6 ++++++
1 file changed, 6 insertions(+)
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c
b/drivers/net/ethernet/qlogic/qla3xxx.c
index df09b1c..78b4cba 100644
--- a/drivers/net/ethernet/qlogic/qla3xxx.c
+++ b/drivers/net/ethernet/qlogic/qla3xxx.c
@@ -2525,6 +2525,12 @@ 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));
+ /*
+ * The barrier is required to ensure that req_q_phy_addr writes to
+ * the memory.
+ */
+ wmb();
+
qdev->req_q_virt_addr =
pci_alloc_consistent(qdev->pdev,
(size_t) qdev->req_q_size,
--
1.7.11.7
