[PATCH 02/44] 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, 22 May 2025 18:32:07 +0000 (20:32 +0200)
commitf45e9dcfc0e2c33ebdec0a56e7f9fb909058b47f
tree9fe8dbab3b99935c867ba909c05e3d2ea272b80b
parent952e66fed67bd463b24a560f5fdf74b74cffc048
[PATCH 02/44] 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