netdev - RE: [Intel-wired-lan] [PATCH iwl-next v2 1/4] igb: Link IRQs to NAPI instances

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Message-ID: <IA1PR11MB62410B2074D4125A236DC1798BCC2@IA1PR11MB6241.namprd11.prod.outlook.com>
Date: Fri, 28 Feb 2025 09:00:33 +0000
From: "Rinitha, SX" <sx.rinitha@...el.com>
To: Kurt Kanzenbach <kurt@...utronix.de>, "Nguyen, Anthony L"
	<anthony.l.nguyen@...el.com>, "Kitszel, Przemyslaw"
	<przemyslaw.kitszel@...el.com>
CC: 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>, Sebastian Andrzej Siewior
	<bigeasy@...utronix.de>, "Damato, Joe" <jdamato@...tly.com>, Gerhard Engleder
	<gerhard@...leder-embedded.com>, "intel-wired-lan@...ts.osuosl.org"
	<intel-wired-lan@...ts.osuosl.org>, "netdev@...r.kernel.org"
	<netdev@...r.kernel.org>
Subject: RE: [Intel-wired-lan] [PATCH iwl-next v2 1/4] igb: Link IRQs to NAPI
 instances

> -----Original Message-----
> From: Intel-wired-lan <intel-wired-lan-bounces@...osl.org> On Behalf Of Kurt Kanzenbach
> Sent: 17 February 2025 17:01
> To: Nguyen, Anthony L <anthony.l.nguyen@...el.com>; Kitszel, Przemyslaw <przemyslaw.kitszel@...el.com>
> Cc: 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>; Sebastian Andrzej Siewior <bigeasy@...utronix.de>; Damato, Joe <jdamato@...tly.com>; Gerhard Engleder <gerhard@...leder-embedded.com>; intel-wired-lan@...ts.osuosl.org; netdev@...r.kernel.org; Kurt Kanzenbach <kurt@...utronix.de>
> Subject: [Intel-wired-lan] [PATCH iwl-next v2 1/4] igb: Link IRQs to NAPI instances
>
> Link IRQs to NAPI instances via netdev-genl API. This allows users to query that information via netlink:
>
> |$ ./tools/net/ynl/pyynl/cli.py --spec Documentation/netlink/specs/netdev.yaml \
> |                               --dump napi-get --json='{"ifindex": 2}'
> |[{'defer-hard-irqs': 0,
> |  'gro-flush-timeout': 0,
> |  'id': 8204,
> |  'ifindex': 2,
> |  'irq': 127,
> |  'irq-suspend-timeout': 0},
> | {'defer-hard-irqs': 0,
> |  'gro-flush-timeout': 0,
> |  'id': 8203,
> |  'ifindex': 2,
> |  'irq': 126,
> |  'irq-suspend-timeout': 0},
> | {'defer-hard-irqs': 0,
> |  'gro-flush-timeout': 0,
> |  'id': 8202,
> |  'ifindex': 2,
> |  'irq': 125,
> |  'irq-suspend-timeout': 0},
> | {'defer-hard-irqs': 0,
> |  'gro-flush-timeout': 0,
> |  'id': 8201,
> |  'ifindex': 2,
> |  'irq': 124,
> |  'irq-suspend-timeout': 0}]
> |$ cat /proc/interrupts | grep enp2s0
> |123:          0          1 IR-PCI-MSIX-0000:02:00.0   0-edge      enp2s0
> |124:          0          7 IR-PCI-MSIX-0000:02:00.0   1-edge      enp2s0-TxRx-0
> |125:          0          0 IR-PCI-MSIX-0000:02:00.0   2-edge      enp2s0-TxRx-1
> |126:          0          5 IR-PCI-MSIX-0000:02:00.0   3-edge      enp2s0-TxRx-2
> |127:          0          0 IR-PCI-MSIX-0000:02:00.0   4-edge      enp2s0-TxRx-3
>
> Reviewed-by: Joe Damato <jdamato@...tly.com>
> Signed-off-by: Kurt Kanzenbach <kurt@...utronix.de>
> ---
> drivers/net/ethernet/intel/igb/igb_main.c | 3 +++
> 1 file changed, 3 insertions(+)
>

Tested-by: Rinitha S <sx.rinitha@...el.com> (A Contingent worker at Intel)