linux.git/drivers/infiniband, branch v2.6.23

IB/mlx4: Fix data corruption triggered by wrong headroom marking order

2007-09-23T20:03:22+00:00

This is an addendum to commit 0e6e7416 ("IB/mlx4: Handle new FW
requirement for send request prefetching").  We also need to handle
prefetch marking properly for S/G segments, or else the HCA may end up
processing S/G segments that are not fully written and end up sending
the wrong data.  This can actually cause data corruption in practice,
especially on systems with relatively slow CPUs (where the HCA is more
likely to prefetch while the CPU is in the middle of writing a work
request into memory).

We write S/G segments in reverse order into the WQE, in order to
guarantee that the first dword of all cachelines containing S/G
segments is written last (overwriting the headroom invalidation
pattern).  The entire cacheline will thus contain valid data when the
invalidation pattern is overwritten.

Signed-off-by: Jack Morgenstein 
Signed-off-by: Roland Dreier

Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband

2007-09-01T03:40:37+00:00

* 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/roland/infiniband:
  IB/ehca: SRQ fixes to enable IPoIB CM
  IB/ehca: Fix Small QP regressions

IB/ehca: SRQ fixes to enable IPoIB CM

2007-08-31T20:58:04+00:00

Fix ehca SRQ support so that IPoIB connected mode works:

 - Report max_srq > 0 if SRQ is supported
 - Report "last wqe reached" asynchronous event when base QP dies;
   this is required by the IB spec and IPoIB CM relies on receiving it
   when cleaning up.

Signed-off-by: Joachim Fenkes 
Signed-off-by: Roland Dreier

IB/ehca: Fix Small QP regressions

2007-08-31T20:56:42+00:00

The new Small QP code had a few bugs that would also make it trigger
for non-Small QPs.  Fix them.

Signed-off-by: Joachim Fenkes 
Signed-off-by: Roland Dreier

cxgb3 - Fix dev->priv usage

2007-08-31T11:29:08+00:00

cxgb3 used netdev_priv() and dev->priv for different purposes.
In 2.6.23, netdev_priv() == dev->priv, cxgb3 needs a fix.
This patch is a partial backport of Dave Miller's changes in the
net-2.6.24 git branch.

Without this fix, cxgb3 crashes on 2.6.23.

Signed-off-by: Divy Le Ray 
Signed-off-by: Jeff Garzik

IB/mlx4: Incorrect semicolon after if statement

2007-08-16T03:24:06+00:00

A stray semicolon makes us inadvertently ignore the value of err.

Signed-off-by: Ilpo Järvinen 
Signed-off-by: Roland Dreier

IPoIB: Fix leak in ipoib_transport_dev_init() error path

2007-08-07T19:40:56+00:00

ipoib_transport_dev_init() calls ipoib_cm_dev_init(), so it needs to
call ipoib_cm_dev_cleanup() to unwind that on the error path.

Found by Dotan Barak of Mellanox.

Signed-off-by: Jack Morgenstein 
Signed-off-by: Roland Dreier

IB/mlx4: Fix opcode returned in RDMA read completion

2007-08-03T21:29:06+00:00

Current code has a cut-and-paste error and returns IB_WC_SEND when it
should return IB_WC_RDMA_READ.

Signed-off-by: Vu Pham 
Signed-off-by: Roland Dreier

IB/srp: Add OUI for new Cisco targets

2007-08-03T17:45:18+00:00

New Cisco IB SRP targets use the Cisco OUI 00-1b-0d but still need the
Topspin workarounds.  Add this OUI to srp_target_is_topspin().

Signed-off-by: Roland Dreier

IB/srp: Wrap OUI checking for workarounds in helper functions

2007-08-03T17:45:18+00:00

Wrap the checking for Mellanox and Topspin OUIs to decide whether to
use a workaround into helper functions.  This will make it cleaner to
add a new OUI to check (as we need to do now that some targets with a
Cisco OUI still need the Topspin workarounds).

Signed-off-by: Roland Dreier