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9ba6d5529d
linux_dsm_epyc7002/drivers/infiniband/hw/mthca
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Michael S. Tsirkin 9ba6d5529d IB/mthca: Work around kernel QP starvation 
With mthca, RC QPs can starve each other and even UD QPs on the same
hardware schedule queue.  As a result, userspace MPI can starve
e.g. IPoIB traffic, with netdev watchdog warnings getting printed out,
and TCP connections getting stuck or failing.

Reduce the chance of this happening by using three separate hardware
schedule queues: one for userspace RC QPs, one for kernel RC QPs, and
one for all other QPs.

Signed-off-by: Michael S. Tsirkin <mst@dev.mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2007-04-30 17:30:28 -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: Update HCA firmware revisions 2007-04-18 20:21:02 -07:00
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 mthca_write_mtt() on HCAs with hidden memory 2007-04-24 16:31:04 -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: Set class_dev->dev in core for nice device symlink 2007-04-24 21:30:38 -07:00
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: Work around kernel QP starvation 2007-04-30 17:30:28 -07:00
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