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[IB] mthca: Better limit checking and reporting

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Check the sizes of CQs, QPs and SRQs when creating objects, and fail
instead of creating too-big queues.  Also return real limits instead
of just plausible-sounding values from mthca_query_device().

Signed-off-by: Jack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
This commit is contained in:
Jack Morgenstein
2005-10-10 13:48:07 -07:00
committed by Roland Dreier
parent 4ab6fb7e5b
commit efaae8f71f
7 changed files with 40 additions and 12 deletions
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6
drivers/infiniband/hw/mthca/mthca_qp.c
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@@ -1112,8 +1112,10 @@ static int mthca_set_qp_size(struct mthca_dev *dev, struct ib_qp_cap *cap,
struct mthca_qp *qp)
{
/* Sanity check QP size before proceeding */
if (cap->max_send_wr > 65536 || cap->max_recv_wr > 65536 ||
cap->max_send_sge > 64 || cap->max_recv_sge > 64)
if (cap->max_send_wr > dev->limits.max_wqes ||
cap->max_recv_wr > dev->limits.max_wqes ||
cap->max_send_sge > dev->limits.max_sg ||
cap->max_recv_sge > dev->limits.max_sg)
return -EINVAL;
if (mthca_is_memfree(dev)) {