From 4f3f7a704b3bff9e4eb322ab3c989b505f7562eb Mon Sep 17 00:00:00 2001 From: oulijun Date: Wed, 3 Jan 2018 10:44:04 +0800 Subject: [PATCH] RDMA/hns: Update the usage of sr_max and rr_max field This patch fixes the usage with sr_max filed and rr_max of qp context when modify qp. Its modifications include: 1. Adjust location of filling sr_max filed of qpc 2. Only assign the number of responder resource if IB_QP_MAX_DEST_RD_ATOMIC bit is set 3. Only assign the number of outstanding resource if IB_QP_MAX_QP_RD_ATOMIC 4. Fix the assgin algorithms for the field of sr_max and rr_max of qp context Signed-off-by: Lijun Ou Signed-off-by: Yixian Liu Signed-off-by: Wei Hu (Xavier) Reviewed-by: Leon Romanovsky Signed-off-by: Jason Gunthorpe --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 27 +++++++++++++--------- 1 file changed, 16 insertions(+), 11 deletions(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index ba05de426c29..4685696ff937 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -2536,11 +2536,14 @@ static int modify_qp_init_to_rtr(struct ib_qp *ibqp, roce_set_bit(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_LBI_S, 0); } - roce_set_field(context->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, - V2_QPC_BYTE_140_RR_MAX_S, - ilog2((unsigned int)attr->max_dest_rd_atomic)); - roce_set_field(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, - V2_QPC_BYTE_140_RR_MAX_S, 0); + if ((attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) && + attr->max_dest_rd_atomic) { + roce_set_field(context->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, + V2_QPC_BYTE_140_RR_MAX_S, + fls(attr->max_dest_rd_atomic - 1)); + roce_set_field(qpc_mask->byte_140_raq, V2_QPC_BYTE_140_RR_MAX_M, + V2_QPC_BYTE_140_RR_MAX_S, 0); + } roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_DQPN_M, V2_QPC_BYTE_56_DQPN_S, attr->dest_qp_num); @@ -2630,12 +2633,6 @@ static int modify_qp_init_to_rtr(struct ib_qp *ibqp, V2_QPC_BYTE_168_LP_SGEN_INI_M, V2_QPC_BYTE_168_LP_SGEN_INI_S, 0); - roce_set_field(context->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, - V2_QPC_BYTE_208_SR_MAX_S, - ilog2((unsigned int)attr->max_rd_atomic)); - roce_set_field(qpc_mask->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, - V2_QPC_BYTE_208_SR_MAX_S, 0); - roce_set_field(context->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, V2_QPC_BYTE_28_SL_S, rdma_ah_get_sl(&attr->ah_attr)); roce_set_field(qpc_mask->byte_28_at_fl, V2_QPC_BYTE_28_SL_M, @@ -2839,6 +2836,14 @@ static int modify_qp_rtr_to_rts(struct ib_qp *ibqp, roce_set_field(qpc_mask->byte_196_sq_psn, V2_QPC_BYTE_196_SQ_MAX_PSN_M, V2_QPC_BYTE_196_SQ_MAX_PSN_S, 0); + if ((attr_mask & IB_QP_MAX_QP_RD_ATOMIC) && attr->max_rd_atomic) { + roce_set_field(context->byte_208_irrl, V2_QPC_BYTE_208_SR_MAX_M, + V2_QPC_BYTE_208_SR_MAX_S, + fls(attr->max_rd_atomic - 1)); + roce_set_field(qpc_mask->byte_208_irrl, + V2_QPC_BYTE_208_SR_MAX_M, + V2_QPC_BYTE_208_SR_MAX_S, 0); + } return 0; }