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Commit 8a6e29d6 authored by Joe Jin's avatar Joe Jin Committed by David S. Miller
Browse files

qla3xxx: Ensure request/response queue addr writes to the registers 



Before use the request and response queue addr, make sure it has wrote
to the registers.

Signed-off-by: default avatarJoe Jin <joe.jin@oracle.com>
Cc: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Cc: Ron Mercer <ron.mercer@qlogic.com>
Acked-by: default avatarJitendra Kalsaria <jitendra.kalsaria@qlogic.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent 6f73601e

drivers/net/ethernet/qlogic/qla3xxx.c

+7 −2
Original line number Diff line number Diff line
@@ -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,