[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>
Fri, 25 Apr 2025 19:51:43 +0000 (21:51 +0200)
commit702f631874fe907f46fb443a3dc696051215a0ad
treea6d991ac5356327e2e22c61cc8d114f6d5c0d430
parent8b159a39918022cc6a192e759dc7a523dcb1b802
[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