netdev - Re: [Patch net-next 2/5] enic: Make MSI-X I/O interrupts come after the other required ones

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Message-ID: <20241022163603.GE402847@kernel.org>
Date: Tue, 22 Oct 2024 17:36:03 +0100
From: Simon Horman <horms@...nel.org>
To: Nelson Escobar <neescoba@...co.com>
Cc: netdev@...r.kernel.org, satishkh@...co.com, johndale@...co.com
Subject: Re: [Patch net-next 2/5] enic: Make MSI-X I/O interrupts come after
 the other required ones

On Mon, Oct 21, 2024 at 09:17:04PM -0700, Nelson Escobar wrote:
> The VIC hardware has a constraint that the MSIX interrupt used for errors
> be specified as a 7 bit number.  Before this patch, it was allocated after
> the I/O interrupts, which would cause a problem if 128 or more I/O
> interrupts are in use.
> 
> So make the required interrupts come before the I/O interrupts to
> guarantee the error interrupt offset never exceeds 7 bits.
> 
> Signed-off-by: Nelson Escobar <neescoba@...co.com>
> Signed-off-by: John Daley <johndale@...co.com>
> Signed-off-by: Satish Kharat <satishkh@...co.com>

Reviewed-by: Simon Horman <horms@...nel.org>