diff options
| author | Joachim Fenkes <fenkes@de.ibm.com> | 2008-07-23 01:18:08 +0400 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2008-07-23 01:18:08 +0400 |
| commit | 593e4d4a05c8263a6dbd5452c21d47c5bdadd40c (patch) | |
| tree | a6ae65ec6d4a880c7238489d34d65b09ee46ac0a /drivers/infiniband | |
| parent | 5b673b71c8ca0fbdb99dc1b1434cfb554212d6ff (diff) | |
| download | linux-593e4d4a05c8263a6dbd5452c21d47c5bdadd40c.tar.xz | |
IB/ehca: Use default value for Local CA ACK Delay if FW returns 0
Some firmware versions report a Local CA ACK Delay of 0. In that
case, return a more sensible default value of 12 (-> 16 msec) instead.
Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'drivers/infiniband')
| -rw-r--r-- | drivers/infiniband/hw/ehca/ehca_hca.c | 4 |
1 files changed, 3 insertions, 1 deletions
diff --git a/drivers/infiniband/hw/ehca/ehca_hca.c b/drivers/infiniband/hw/ehca/ehca_hca.c index bc3b37d2070f..46288220cfbb 100644 --- a/drivers/infiniband/hw/ehca/ehca_hca.c +++ b/drivers/infiniband/hw/ehca/ehca_hca.c @@ -114,7 +114,9 @@ int ehca_query_device(struct ib_device *ibdev, struct ib_device_attr *props) } props->max_pkeys = 16; - props->local_ca_ack_delay = min_t(u8, rblock->local_ca_ack_delay, 255); + /* Some FW versions say 0 here; insert sensible value in that case */ + props->local_ca_ack_delay = rblock->local_ca_ack_delay ? + min_t(u8, rblock->local_ca_ack_delay, 255) : 12; props->max_raw_ipv6_qp = limit_uint(rblock->max_raw_ipv6_qp); props->max_raw_ethy_qp = limit_uint(rblock->max_raw_ethy_qp); props->max_mcast_grp = limit_uint(rblock->max_mcast_grp); |