The current QP FetchBurstMax value is 256B, which is incorrect since a WR can exceed that value. The result being a partial WR fetched by hardware, and a fatal "bad WR" error posted by the SGE. So bump the FetchBurstMax to 512B. Signed-off-by: Steve Wise <swise@xxxxxxxxxxxxxxxxxxxxx> --- drivers/infiniband/hw/cxgb4/qp.c | 5 +++-- 1 file changed, 3 insertions(+), 2 deletions(-) diff --git a/drivers/infiniband/hw/cxgb4/qp.c b/drivers/infiniband/hw/cxgb4/qp.c index b7ac97b..cda5542 100644 --- a/drivers/infiniband/hw/cxgb4/qp.c +++ b/drivers/infiniband/hw/cxgb4/qp.c @@ -321,7 +321,8 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, FW_RI_RES_WR_DCAEN_V(0) | FW_RI_RES_WR_DCACPU_V(0) | FW_RI_RES_WR_FBMIN_V(2) | - FW_RI_RES_WR_FBMAX_V(2) | + (t4_sq_onchip(&wq->sq) ? FW_RI_RES_WR_FBMAX_V(2) : + FW_RI_RES_WR_FBMAX_V(3)) | FW_RI_RES_WR_CIDXFTHRESHO_V(0) | FW_RI_RES_WR_CIDXFTHRESH_V(0) | FW_RI_RES_WR_EQSIZE_V(eqsize)); @@ -345,7 +346,7 @@ static int create_qp(struct c4iw_rdev *rdev, struct t4_wq *wq, FW_RI_RES_WR_DCAEN_V(0) | FW_RI_RES_WR_DCACPU_V(0) | FW_RI_RES_WR_FBMIN_V(2) | - FW_RI_RES_WR_FBMAX_V(2) | + FW_RI_RES_WR_FBMAX_V(3) | FW_RI_RES_WR_CIDXFTHRESHO_V(0) | FW_RI_RES_WR_CIDXFTHRESH_V(0) | FW_RI_RES_WR_EQSIZE_V(eqsize)); -- 2.7.0 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
