RDMA/srpt: Increase max_send_sge
The ib_srpt driver limits max_send_sge to 16. Since that is a workaround
for an mlx4 bug that has been fixed, increase max_send_sge. See also
commit f95ccffc71
("IB/mlx4: Use 4K pages for kernel QP's WQE buffer").
Link: https://lore.kernel.org/r/20200525172212.14413-5-bvanassche@acm.org
Signed-off-by: Bart Van Assche <bvanassche@acm.org>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Родитель
66ced2eb2a
Коммит
e0cca8b456
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@ -1816,8 +1816,7 @@ retry:
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*/
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qp_init->cap.max_send_wr = min(sq_size / 2, attrs->max_qp_wr);
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qp_init->cap.max_rdma_ctxs = sq_size / 2;
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qp_init->cap.max_send_sge = min(attrs->max_send_sge,
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SRPT_MAX_SG_PER_WQE);
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qp_init->cap.max_send_sge = attrs->max_send_sge;
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qp_init->cap.max_recv_sge = 1;
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qp_init->port_num = ch->sport->port;
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if (sdev->use_srq)
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@ -105,11 +105,6 @@ enum {
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SRP_CMD_ACA = 0x4,
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SRPT_DEF_SG_TABLESIZE = 128,
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/*
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* An experimentally determined value that avoids that QP creation
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* fails due to "swiotlb buffer is full" on systems using the swiotlb.
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*/
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SRPT_MAX_SG_PER_WQE = 16,
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MIN_SRPT_SQ_SIZE = 16,
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DEF_SRPT_SQ_SIZE = 4096,
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