linux-kernel - RE: [PATCH iwl-net] idpf: fix LAN memory regions command on some NVMs

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Message-ID: <DS4PPF0442004E18A32C1BB14B0E3D429CFBAD0A@DS4PPF0442004E1.namprd11.prod.outlook.com>
Date: Mon, 24 Nov 2025 19:37:07 +0000
From: "Singh, Krishneil K" <krishneil.k.singh@...el.com>
To: "Zaremba, Larysa" <larysa.zaremba@...el.com>,
	"intel-wired-lan@...ts.osuosl.org" <intel-wired-lan@...ts.osuosl.org>,
	"Nguyen, Anthony L" <anthony.l.nguyen@...el.com>
CC: "Zaremba, Larysa" <larysa.zaremba@...el.com>, "Kitszel, Przemyslaw"
	<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>, "Hay, Joshua A"
	<joshua.a.hay@...el.com>, "Chittim, Madhu" <madhu.chittim@...el.com>,
	"netdev@...r.kernel.org" <netdev@...r.kernel.org>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>, "Tantilov,
 Emil S" <emil.s.tantilov@...el.com>, Michal Swiatkowski
	<michal.swiatkowski@...ux.intel.com>, "Loktionov, Aleksandr"
	<aleksandr.loktionov@...el.com>
Subject: RE: [PATCH iwl-net] idpf: fix LAN memory regions command on some NVMs



> -----Original Message-----
> From: Larysa Zaremba <larysa.zaremba@...el.com>
> Sent: Tuesday, October 7, 2025 4:46 AM
> To: intel-wired-lan@...ts.osuosl.org; Nguyen, Anthony L
> <anthony.l.nguyen@...el.com>
> Cc: Zaremba, Larysa <larysa.zaremba@...el.com>; Kitszel, Przemyslaw
> <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>; Hay, Joshua A <joshua.a.hay@...el.com>; Chittim,
> Madhu <madhu.chittim@...el.com>; netdev@...r.kernel.org; linux-
> kernel@...r.kernel.org; Tantilov, Emil S <emil.s.tantilov@...el.com>; Michal
> Swiatkowski <michal.swiatkowski@...ux.intel.com>; Loktionov, Aleksandr
> <aleksandr.loktionov@...el.com>
> Subject: [PATCH iwl-net] idpf: fix LAN memory regions command on some
> NVMs
> 
> IPU SDK versions 1.9 through 2.0.5 require send buffer to contain a single
> empty memory region. Set number of regions to 1 and use appropriate send
> buffer size to satisfy this requirement.
> 
> Suggested-by: Michal Swiatkowski <michal.swiatkowski@...ux.intel.com>
> Reviewed-by: Aleksandr Loktionov <aleksandr.loktionov@...el.com>
> Signed-off-by: Larysa Zaremba <larysa.zaremba@...el.com>
> ---
>  drivers/net/ethernet/intel/idpf/idpf_virtchnl.c | 5 +++++
>  1 file changed, 5 insertions(+)
> 
> diff --git a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> index fa3ce1e4f6ac..af8b3ebee4d4 100644
> --- a/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> +++ b/drivers/net/ethernet/intel/idpf/idpf_virtchnl.c
> @@ -1016,6 +1016,9 @@ static int


Tested-by: Krishneil Singh <krishneil.k.singh@...el.com>