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| author | Ramachandra K <ramachandra.kuchimanchi@qlogic.com> | 2009-02-27 10:33:12 -0800 |
|---|---|---|
| committer | Roland Dreier <rolandd@cisco.com> | 2009-02-27 10:33:12 -0800 |
| commit | 7020cb0fe216fdcec246cdc2412614a3190fbb2f (patch) | |
| tree | 73fefbde0a05e9598b0ff871eca631aeea495e61 /include/rdma/ib_mad.h | |
| parent | f3b8436ad9a8ad36b3c9fa1fe030c7f38e5d3d0b (diff) | |
| download | linux-7020cb0fe216fdcec246cdc2412614a3190fbb2f.tar.gz linux-7020cb0fe216fdcec246cdc2412614a3190fbb2f.tar.bz2 linux-7020cb0fe216fdcec246cdc2412614a3190fbb2f.zip | |
IB/mad: Fix RMPP header RRespTime manipulation
Fix ib_set_rmpp_flags() to use the correct bit mask for RRespTime. In
the 8-bit field of the RMPP header, the first 5 bits are RRespTime and
next 3 bits are RMPPFlags. Hence to retain the first 5 bits, the mask
should be 0xF8 instead of 0xF1.
ack_recv()-->format_ack() calls ib_set_rmpp_flags() and due to the
incorrect ANDing with 0xF1, RRespTime got changed incorrectly and RMPP
Acks sent back always had a RRespTime of 0x1E (30) which caused the
other end to consider the time outs to be approximately 4297 seconds
(i.e. in the order of 4*2^30) instead of the usual ~4 seconds (order
of 4*2^20).
Signed-off-by: Ramachandra K <ramachandra.kuchimanchi@qlogic.com>
Acked-by: Sean Hefty <sean.hefty@intel.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Diffstat (limited to 'include/rdma/ib_mad.h')
| -rw-r--r-- | include/rdma/ib_mad.h | 2 |
1 files changed, 1 insertions, 1 deletions
diff --git a/include/rdma/ib_mad.h b/include/rdma/ib_mad.h index 5f6c40fffcf4..1a0f409f1700 100644 --- a/include/rdma/ib_mad.h +++ b/include/rdma/ib_mad.h @@ -290,7 +290,7 @@ static inline void ib_set_rmpp_resptime(struct ib_rmpp_hdr *rmpp_hdr, u8 rtime) */ static inline void ib_set_rmpp_flags(struct ib_rmpp_hdr *rmpp_hdr, u8 flags) { - rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF1) | + rmpp_hdr->rmpp_rtime_flags = (rmpp_hdr->rmpp_rtime_flags & 0xF8) | (flags & 0x7); } |