linux/drivers/infiniband/hw/mthca
Michael S. Tsirkin 608d8268be IB/mthca: Fix data corruption after FMR unmap on Sinai
In mthca_arbel_fmr_unmap(), the high bits of the key are masked off.
This gets rid of the effect of adjust_key(), which makes sure that
bits 3 and 23 of the key are equal when the Sinai throughput
optimization is enabled, and so it may happen that an FMR will end up
with bits 3 and 23 in the key being different.  This causes data
corruption, because when enabling the throughput optimization, the
driver promises the HCA firmware that bits 3 and 23 of all memory keys
will always be equal.

Fix by re-applying adjust_key() after masking the key.

Thanks to Or Gerlitz for reproducing the problem, and Ariel Shahar for
help in debug.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-16 14:10:55 -07:00
..
Kconfig IB/mthca: Always build debugging code unless CONFIG_EMBEDDED=y 2006-04-02 14:39:20 -07:00
Makefile IB/mthca: Always build debugging code unless CONFIG_EMBEDDED=y 2006-04-02 14:39:20 -07:00
mthca_allocator.c IB/mthca: Use IRQ safe locks to protect allocation bitmaps 2006-08-31 17:25:56 -07:00
mthca_av.c [PATCH] slab: remove SLAB_ATOMIC 2006-12-07 08:39:24 -08:00
mthca_catas.c WorkStruct: make allyesconfig 2006-11-22 14:57:56 +00:00
mthca_cmd.c IB/mthca: Fix reserved MTTs calculation on mem-free HCAs 2007-02-12 16:16:29 -08:00
mthca_cmd.h IB: simplify static rate encoding 2006-04-10 09:43:47 -07:00
mthca_config_reg.h [PATCH] IB: Add copyright notices 2005-08-26 20:37:35 -07:00
mthca_cq.c IB: Return qp pointer as part of ib_wc 2007-02-04 14:11:55 -08:00
mthca_dev.h IB/mthca: Always fill MTTs from CPU 2007-02-12 16:16:29 -08:00
mthca_doorbell.h [PATCH] IB: sparse endianness cleanup 2005-08-26 20:37:35 -07:00
mthca_eq.c IB/mthca: Fix section mismatches 2006-11-29 15:33:06 -08:00
mthca_mad.c IB/mthca: Fix section mismatches 2006-11-29 15:33:06 -08:00
mthca_main.c IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs 2007-02-12 16:16:29 -08:00
mthca_mcg.c IB/mthca: Fix section mismatches 2006-11-29 15:33:06 -08:00
mthca_memfree.c IB/mthca: Fix allocation of ICM chunks in coherent memory 2007-02-16 13:57:33 -08:00
mthca_memfree.h IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs 2007-02-12 16:16:29 -08:00
mthca_mr.c IB/mthca: Fix data corruption after FMR unmap on Sinai 2007-04-16 14:10:55 -07:00
mthca_pd.c IB/mthca: Fix section mismatches 2006-11-29 15:33:06 -08:00
mthca_profile.c IB/mthca: Merge MR and FMR space on 64-bit systems 2007-02-12 16:16:29 -08:00
mthca_profile.h [PATCH] IB/mthca: Add SRQ implementation 2005-08-26 20:37:37 -07:00
mthca_provider.c IB/mthca: Always fill MTTs from CPU 2007-02-12 16:16:29 -08:00
mthca_provider.h IB/mthca: Fix access to MTT and MPT tables on non-cache-coherent CPUs 2007-02-12 16:16:29 -08:00
mthca_qp.c IB/mthca: Fix error path in mthca_alloc_memfree() 2007-03-01 13:17:14 -08:00
mthca_reset.c Remove obsolete #include <linux/config.h> 2006-06-30 19:25:36 +02:00
mthca_srq.c IB/mthca: Work around gcc bug on sparc64 2007-02-10 08:00:49 -08:00
mthca_uar.c IB/mthca: Don't use privileged UAR for kernel access 2006-09-22 15:17:18 -07:00
mthca_user.h IB/mthca: Add device-specific support for resizing CQs 2006-03-20 10:08:08 -08:00
mthca_wqe.h IB/mthca: fix posting of send lists of length >= 255 on mem-free HCAs 2005-11-29 11:33:46 -08:00