54 lines
1.8 KiB
Diff
54 lines
1.8 KiB
Diff
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From a57d5dfbc2701b9d0c47eb70a1bb82b16170a7d2 Mon Sep 17 00:00:00 2001
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From: Luoyouming <luoyouming@huawei.com>
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Date: Tue, 20 Sep 2022 11:53:18 +0800
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Subject: [PATCH v4 02/10] libhns: Fix ext_sge num error when post send
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The max_gs is the sum of extended sge and standard sge. In function
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fill_ext_sge_inl_data, max_gs does not subtract the number of extended
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sges, but is directly used to calculate the size of extended sges.
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Fixes:b7814b7b9715("libhns: Support inline data in extented sge space for RC")
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Signed-off-by: Luoyouming <luoyouming@huawei.com>
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Reviewed-by: Yangyang Li <liyangyang20@huawei.com>
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---
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providers/hns/hns_roce_u_hw_v2.c | 13 ++++++++++++-
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1 file changed, 12 insertions(+), 1 deletion(-)
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diff --git a/providers/hns/hns_roce_u_hw_v2.c b/providers/hns/hns_roce_u_hw_v2.c
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index d9ea18e..bb4298f 100644
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--- a/providers/hns/hns_roce_u_hw_v2.c
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+++ b/providers/hns/hns_roce_u_hw_v2.c
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@@ -841,6 +841,14 @@ static void get_src_buf_info(void **src_addr, uint32_t *src_len,
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}
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}
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+static unsigned int get_std_sge_num(struct hns_roce_qp *qp)
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+{
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+ if (qp->verbs_qp.qp.qp_type == IBV_QPT_UD)
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+ return 0;
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+
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+ return HNS_ROCE_SGE_IN_WQE;
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+}
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+
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static int fill_ext_sge_inl_data(struct hns_roce_qp *qp,
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struct hns_roce_sge_info *sge_info,
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const void *buf_list,
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@@ -850,9 +858,12 @@ static int fill_ext_sge_inl_data(struct hns_roce_qp *qp,
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unsigned int sge_mask = qp->ex_sge.sge_cnt - 1;
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void *dst_addr, *src_addr, *tail_bound_addr;
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uint32_t src_len, tail_len;
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+ unsigned int std_sge_num;
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int i;
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- if (sge_info->total_len > qp->sq.max_gs * HNS_ROCE_SGE_SIZE)
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+ std_sge_num = get_std_sge_num(qp);
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+ if (sge_info->total_len >
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+ (qp->sq.max_gs - std_sge_num) * HNS_ROCE_SGE_SIZE)
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return EINVAL;
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dst_addr = get_send_sge_ex(qp, sge_info->start_idx & sge_mask);
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--
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2.30.0
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