netdev - RE: [PATCH] net: mana: Expose additional hardware counters for drop and TC via ethtool.

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Message-ID:
 <SN6PR2101MB094371F71B98FE8E3D0652D4CA6BA@SN6PR2101MB0943.namprd21.prod.outlook.com>
Date: Mon, 9 Jun 2025 20:27:29 +0000
From: Haiyang Zhang <haiyangz@...rosoft.com>
To: Dipayaan Roy <dipayanroy@...ux.microsoft.com>, "andrew+net@...n.ch"
	<andrew+net@...n.ch>, "davem@...emloft.net" <davem@...emloft.net>,
	"edumazet@...gle.com" <edumazet@...gle.com>, "kuba@...nel.org"
	<kuba@...nel.org>, "pabeni@...hat.com" <pabeni@...hat.com>, KY Srinivasan
	<kys@...rosoft.com>, "wei.liu@...nel.org" <wei.liu@...nel.org>, Dexuan Cui
	<decui@...rosoft.com>, Long Li <longli@...rosoft.com>, Konstantin Taranov
	<kotaranov@...rosoft.com>, "horms@...nel.org" <horms@...nel.org>,
	"mhklinux@...look.com" <mhklinux@...look.com>, "ernis@...ux.microsoft.com"
	<ernis@...ux.microsoft.com>, Dipayaan Roy <dipayanroy@...rosoft.com>,
	"schakrabarti@...ux.microsoft.com" <schakrabarti@...ux.microsoft.com>,
	"rosenp@...il.com" <rosenp@...il.com>, "linux-hyperv@...r.kernel.org"
	<linux-hyperv@...r.kernel.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>, "linux-kernel@...r.kernel.org"
	<linux-kernel@...r.kernel.org>, "linux-rdma@...r.kernel.org"
	<linux-rdma@...r.kernel.org>
Subject: RE: [PATCH] net: mana: Expose additional hardware counters for drop
 and TC via ethtool.



> -----Original Message-----
> From: Dipayaan Roy <dipayanroy@...ux.microsoft.com>
> Sent: Monday, June 9, 2025 6:01 AM
> To: andrew+net@...n.ch; davem@...emloft.net; edumazet@...gle.com;
> kuba@...nel.org; pabeni@...hat.com; KY Srinivasan <kys@...rosoft.com>;
> Haiyang Zhang <haiyangz@...rosoft.com>; wei.liu@...nel.org; Dexuan Cui
> <decui@...rosoft.com>; Long Li <longli@...rosoft.com>; Konstantin Taranov
> <kotaranov@...rosoft.com>; horms@...nel.org; mhklinux@...look.com;
> ernis@...ux.microsoft.com; Dipayaan Roy <dipayanroy@...rosoft.com>;
> schakrabarti@...ux.microsoft.com; rosenp@...il.com; linux-
> hyperv@...r.kernel.org; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; linux-rdma@...r.kernel.org
> Subject: [PATCH] net: mana: Expose additional hardware counters for drop
> and TC via ethtool.
> 
> Add support for reporting additional hardware counters for drop and
> TC using the ethtool -S interface.
> 
> These counters include:
> 
> - Aggregate Rx/Tx drop counters
> - Per-TC Rx/Tx packet counters
> - Per-TC Rx/Tx byte counters
> - Per-TC Rx/Tx pause frame counters
> 
> The counters are exposed using ethtool_ops->get_ethtool_stats and
> ethtool_ops->get_strings. This feature/counters are not available
> to all versions of hardware.
> 
> Signed-off-by: Dipayaan Roy <dipayanroy@...ux.microsoft.com>

Reviewed-by: Haiyang Zhang <haiyangz@...rosoft.com>