Message ID | 5080AB55.9010609@oracle.com |
---|---|
State | Superseded, archived |
Delegated to: | David Miller |
Headers | show |
diff --git a/drivers/net/ethernet/qlogic/qla3xxx.c b/drivers/net/ethernet/qlogic/qla3xxx.c index df09b1c..f745ade 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 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,
Before use the request and response queue addr, make sure it has wrote to the registers. Signed-off-by: Joe Jin <joe.jin@oracle.com> Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Cc: Ron Mercer <ron.mercer@qlogic.com> --- drivers/net/ethernet/qlogic/qla3xxx.c | 6 ++++++ 1 file changed, 6 insertions(+)