linux_dsm_epyc7002/drivers/infiniband
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
..
core IB: Set class_dev->dev in core for nice device symlink 2007-04-24 21:30:38 -07:00
hw IB/mthca: Work around kernel QP starvation 2007-04-30 17:30:28 -07:00
ulp Merge branch 'for-linus' of master.kernel.org:/pub/scm/linux/kernel/git/roland/infiniband 2007-04-27 09:39:27 -07:00
Kconfig RDMA/cxgb3: Add driver for Chelsio T3 RNIC 2007-02-12 16:16:18 -08:00
Makefile RDMA/cxgb3: Add driver for Chelsio T3 RNIC 2007-02-12 16:16:18 -08:00