IB/mlx5: Fix send work queue size calculation

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1. Make sure wqe_cnt does not exceed the limit published by firmware.

2. There is no requirement that the number of outstanding work
   requests will be a power of two. Remove the ilog2 in the
   calculation of sq.max_post to fix that.

3. Add case for IB_QPT_XRC_TGT in sq_overhead and return 0 as XRC
   target QPs do not have a send queue.

Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>

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Eli Cohen 2013-09-11 16:35:22 +03:00 • committed by Roland Dreier

parent 4a10c2ac2f

commit b125a54bfd

1 changed files with 16 additions and 6 deletions

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drivers/infiniband/hw/mlx5/qp.c

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