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Date: Thu, 14 Mar 2013 20:39:04 +0530 From: Vipul Pandya <vipul@...lsio.com> To: netdev@...r.kernel.org, linux-rdma@...r.kernel.org, linux-scsi@...r.kernel.org Cc: davem@...emloft.net, roland@...estorage.com, JBottomley@...allels.com, dm@...lsio.com, swise@...ngridcomputing.com, leedom@...lsio.com, naresh@...lsio.com, divy@...lsio.com, santosh@...lsio.com, arvindb@...lsio.com, abhishek@...lsio.com, vipul@...lsio.com Subject: [PATCH v2 net-next 18/22] RDMA/cxgb4: Fix onchip queue support for T5 T5 adapter does not support onchip queue memory. Present logic fails to allocate QP for T5 and returns an error. Also, if module parameter ocqp_support is zero then we are unable to allocate QP which should not be the case. Ideally if ocqp_support parameter is 0 or onchip queue support is disable then host QP should be allocated before returning an error. Signed-off-by: Vipul Pandya <vipul@...lsio.com> --- v2: Replaced #ifdef with portable interface wmb in ring_tx_db drivers/infiniband/hw/cxgb4/qp.c | 13 +++++-------- 1 files changed, 5 insertions(+), 8 deletions(-) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index 90833d7..9fe6f1e 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -140,7 +140,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, int wr_len; struct c4iw_wr_wait wr_wait; struct sk_buff *skb; - int ret; + int ret = 0; int eqsize; wq->sq.qid = c4iw_get_qpid(rdev, uctx); @@ -180,17 +180,14 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, } if (user) { - ret = alloc_oc_sq(rdev, &wq->sq); - if (ret) + if (alloc_oc_sq(rdev, &wq->sq) && alloc_host_sq(rdev, &wq->sq)) goto free_hwaddr; - - ret = alloc_host_sq(rdev, &wq->sq); - if (ret) - goto free_sq; - } else + } else { ret = alloc_host_sq(rdev, &wq->sq); if (ret) goto free_hwaddr; + } + memset(wq->sq.queue, 0, wq->sq.memsize); dma_unmap_addr_set(&wq->sq, mapping, wq->sq.dma_addr); -- 1.7.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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