[PATCH 02/23] net: mana: Assign interrupts to CPUs based on NUMA nodes
authorSaurabh Sengar <ssengar@linux.microsoft.com>
Tue, 1 Nov 2022 06:06:01 +0000 (23:06 -0700)
committerSalvatore Bonaccorso <carnil@debian.org>
Thu, 1 Feb 2024 08:05:49 +0000 (09:05 +0100)
commit7fbe30c35c1b76d1bd986722aae33367e246ac30
treeb57e7b1eb7bc52e9a4a6274ce51c00a62d6227e1
parent00123588f2da545a61c89822a5f2e96750b686c1
[PATCH 02/23] net: mana: Assign interrupts to CPUs based on NUMA nodes

In large VMs with multiple NUMA nodes, network performance is usually
best if network interrupts are all assigned to the same virtual NUMA
node. This patch assigns online CPU according to a numa aware policy,
local cpus are returned first, followed by non-local ones, then it wraps
around.

Signed-off-by: Saurabh Sengar <ssengar@linux.microsoft.com>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
Link: https://lore.kernel.org/r/1667282761-11547-1-git-send-email-ssengar@linux.microsoft.com
Signed-off-by: Paolo Abeni <pabeni@redhat.com>
(cherry picked from commit 71fa6887eeca7b631528f9c7a39815498de8028c)
Signed-off-by: Bastian Blank <waldi@debian.org>
Gbp-Pq: Topic features/all/ethernet-microsoft
Gbp-Pq: Name 0002-net-mana-Assign-interrupts-to-CPUs-based-on-NUMA-nod.patch
drivers/net/ethernet/microsoft/mana/gdma.h
drivers/net/ethernet/microsoft/mana/gdma_main.c