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IB/mthca: Fix check of max_send_sge for special QPs 

The MLX transport requires two extra gather entries for sends (one for
the header and one for the checksum at the end, as the comment says).
However the code checked that max_recv_sge was not too big, instead of
checking max_send_sge as it should have.  Fix the code to check the
correct condition.

Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Roland Dreier 2008-07-14 23:48:52 -07:00
parent c036925ac0
commit aed012279d
1 changed files with 2 additions and 2 deletions
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4
drivers/infiniband/hw/mthca/mthca_qp.c
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@ -1249,10 +1249,10 @@ static int mthca_set_qp_size(struct mthca_dev *dev, struct ib_qp_cap *cap,
return -EINVAL;
/*
* For MLX transport we need 2 extra S/G entries:
* For MLX transport we need 2 extra send gather entries:
* one for the header and one for the checksum at the end
*/
if (qp->transport == MLX && cap->max_recv_sge + 2 > dev->limits.max_sg)
if (qp->transport == MLX && cap->max_send_sge + 2 > dev->limits.max_sg)
return -EINVAL;
if (mthca_is_memfree(dev)) {