netdev - Re: [Intel-wired-lan] [PATCH iwl-next v3 7/7] igc: add preemptible queue support in mqprio

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Message-ID: <9bd084ef-9118-4d15-8515-328449b2dd42@intel.com>
Date: Thu, 29 May 2025 10:25:49 +0300
From: Mor Bar-Gabay <morx.bar.gabay@...el.com>
To: "Abdul Rahim, Faizal" <faizal.abdul.rahim@...el.com>, Tony Nguyen
	<anthony.l.nguyen@...el.com>, Przemek Kitszel <przemyslaw.kitszel@...el.com>,
	Andrew Lunn <andrew+netdev@...n.ch>, "David S . Miller"
	<davem@...emloft.net>, Eric Dumazet <edumazet@...gle.com>, Jakub Kicinski
	<kuba@...nel.org>, Paolo Abeni <pabeni@...hat.com>, Vladimir Oltean
	<vladimir.oltean@....com>
CC: <intel-wired-lan@...ts.osuosl.org>, <netdev@...r.kernel.org>,
	<linux-kernel@...r.kernel.org>, Simon Horman <horms@...nel.org>, Faizal Rahim
	<faizal.abdul.rahim@...ux.intel.com>, Aleksandr Loktionov
	<aleksandr.loktionov@...el.com>, Chwee-Lin Choong
	<chwee.lin.choong@...el.com>
Subject: Re: [Intel-wired-lan] [PATCH iwl-next v3 7/7] igc: add preemptible
 queue support in mqprio

On 19/05/2025 10:19, Abdul Rahim, Faizal wrote:
> From: Faizal Rahim <faizal.abdul.rahim@...ux.intel.com>
> 
> igc already supports enabling MAC Merge for FPE. This patch adds
> support for preemptible queues in mqprio.
> 
> Tested preemption with mqprio by:
> 1. Enable FPE:
>     ethtool --set-mm enp1s0 pmac-enabled on tx-enabled on verify-enabled on
> 2. Enable preemptible queue in mqprio:
>     mqprio num_tc 4 map 0 1 2 3 0 0 0 0 0 0 0 0 0 0 0 0 \
>     queues 1@0 1@1 1@2 1@3 \
>     fp P P P E
> 
> Signed-off-by: Faizal Rahim <faizal.abdul.rahim@...ux.intel.com>
> Reviewed-by: Simon Horman <horms@...nel.org>
> ---
>   drivers/net/ethernet/intel/igc/igc_main.c | 9 ++-------
>   drivers/net/ethernet/intel/igc/igc_tsn.c  | 9 +++++++++
>   drivers/net/ethernet/intel/igc/igc_tsn.h  | 1 +
>   3 files changed, 12 insertions(+), 7 deletions(-)
> 
Tested-by: Mor Bar-Gabay <morx.bar.gabay@...el.com>