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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_cmd.c
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@@ -933,9 +933,9 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
goto out;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_SRQ_SZ_OFFSET);
dev_lim->max_srq_sz = 1 << field;
dev_lim->max_srq_sz = (1 << field) - 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_SZ_OFFSET);
dev_lim->max_qp_sz = 1 << field;
dev_lim->max_qp_sz = (1 << field) - 1;
MTHCA_GET(field, outbox, QUERY_DEV_LIM_RSVD_QP_OFFSET);
dev_lim->reserved_qps = 1 << (field & 0xf);
MTHCA_GET(field, outbox, QUERY_DEV_LIM_MAX_QP_OFFSET);
@@ -1045,6 +1045,8 @@ int mthca_QUERY_DEV_LIM(struct mthca_dev *dev,
dev_lim->max_pds, dev_lim->reserved_pds, dev_lim->reserved_uars);
mthca_dbg(dev, "Max QP/MCG: %d, reserved MGMs: %d\n",
dev_lim->max_pds, dev_lim->reserved_mgms);
mthca_dbg(dev, "Max CQEs: %d, max WQEs: %d, max SRQ WQEs: %d\n",
dev_lim->max_cq_sz, dev_lim->max_qp_sz, dev_lim->max_srq_sz);
mthca_dbg(dev, "Flags: %08x\n", dev_lim->flags);