RDMA/hns: Adjust lp_pktn_ini dynamically (b713128d) · Commits · 戴 / test

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. Link: https://lore.kernel.org/r/1588242691-12913-3-git-send-email-liweihang@huawei.com Signed-off-by:

drivers/infiniband/hw/hns/hns_roce_hw_v2.c

+2 −1

Original line number	Diff line number	Diff line
		@@ -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);