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RDMA/hns: Update the usage of sr_max and rr_max field

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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 <oulijun@huawei.com>
Signed-off-by: Yixian Liu <liuyixian@huawei.com>
Signed-off-by: Wei Hu (Xavier) <xavier.huwei@huawei.com>
Reviewed-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
oulijun 2018-01-03 10:44:04 +08:00 committed by Jason Gunthorpe
parent 0009c2dbe8
commit 4f3f7a704b
1 changed files with 16 additions and 11 deletions
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27
drivers/infiniband/hw/hns/hns_roce_hw_v2.c
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@ -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;
}