Thread (6 messages) 6 messages, 3 authors, 2025-11-18

RE: [PATCH net-next v3 1/2] net: mana: Move hardware counter stats from per-port to per-VF context

From: Haiyang Zhang <haiyangz@microsoft.com>
Date: 2025-11-16 21:50:40
Also in: linux-hyperv, linux-rdma, lkml

-----Original Message-----
From: Erni Sri Satya Vennela <redacted>
Sent: Friday, November 14, 2025 6:43 AM
To: KY Srinivasan <kys@microsoft.com>; Haiyang Zhang
[off-list ref]; wei.liu@kernel.org; Dexuan Cui
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edumazet@google.com; kuba@kernel.org; pabeni@redhat.com; Long Li
[off-list ref]; Konstantin Taranov [off-list ref];
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ssengar@linux.microsoft.com; ernis@linux.microsoft.com;
dipayanroy@linux.microsoft.com; Shiraz Saleem
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Subject: [PATCH net-next v3 1/2] net: mana: Move hardware counter stats
from per-port to per-VF context

Move hardware counter (HC) statistics from mana_port_context to
mana_context to enable sharing stats across multiple network ports
on the same MANA VF. Previously, each network port queried
hardware counters independently using MANA_QUERY_GF_STAT command
(GF = Generic Function stats from GDMA hardware), resulting in
redundant queries when multiple ports existed on the same device.

Isolate hardware counter stats by introducing mana_ethtool_hc_stats
in mana_context and update the code to ensure all stats are properly
reported via ethtool -S <interface>, maintaining consistency with
previous behavior.

Signed-off-by: Erni Sri Satya Vennela <redacted>
Reviewed-by: Haiyang Zhang <haiyangz@microsoft.com>
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