lp_pktn_ini means the number of loopback slice packets for long messages, it should depend on MTU(fixed to 4096B currently) and max size of SQ inline. Signed-off-by: Weihang Li <liweihang@xxxxxxxxxx> --- drivers/infiniband/hw/hns/hns_roce_hw_v2.c | 3 ++- 1 file changed, 2 insertions(+), 1 deletion(-) diff --git a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c index f70370d..7643b06 100644 --- a/drivers/infiniband/hw/hns/hns_roce_hw_v2.c +++ b/drivers/infiniband/hw/hns/hns_roce_hw_v2.c @@ -3977,7 +3977,8 @@ static int modify_qp_init_to_rtr(struct ib_qp *ibqp, /* mtu*(2^LP_PKTN_INI) should not bigger than 1 message length 64kb */ roce_set_field(context->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, - V2_QPC_BYTE_56_LP_PKTN_INI_S, 0); + V2_QPC_BYTE_56_LP_PKTN_INI_S, + ilog2(hr_dev->caps.max_sq_inline / IB_MTU_4096)); roce_set_field(qpc_mask->byte_56_dqpn_err, V2_QPC_BYTE_56_LP_PKTN_INI_M, V2_QPC_BYTE_56_LP_PKTN_INI_S, 0); -- 2.8.1
