linux-kernel - Re: [PATCH v2] powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded

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Message-ID: <176835971843.41689.3679572113994089423.b4-ty@linux.ibm.com>
Date: Wed, 14 Jan 2026 08:34:15 +0530
From: Madhavan Srinivasan <maddy@...ux.ibm.com>
To: Michael Ellerman <mpe@...erman.id.au>, Nicholas Piggin <npiggin@...il.com>,
        Thomas Gleixner <tglx@...utronix.de>, maz@...nel.org,
        gautam@...ux.ibm.com, Gregory Joyce <gjoyce@....com>,
        linuxppc-dev@...ts.ozlabs.org, linux-kernel@...r.kernel.org,
        Christophe Leroy <chleroy@...nel.org>, Nam Cao <namcao@...utronix.de>
Cc: Nilay Shroff <nilay@...ux.ibm.com>, stable@...r.kernel.org
Subject: Re: [PATCH v2] powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded

On Wed, 07 Jan 2026 10:02:30 +0000, Nam Cao wrote:
> Nilay reported that since commit daaa574aba6f ("powerpc/pseries/msi: Switch
> to msi_create_parent_irq_domain()"), the NVMe driver cannot enable MSI-X
> when the device's MSI-X table size is larger than the firmware's MSI quota
> for the device.
> 
> This is because the commit changes how rtas_prepare_msi_irqs() is called:
> 
> [...]

Applied to powerpc/next.

[1/1] powerpc/pseries: Fix MSI-X allocation failure when quota is exceeded
      https://git.kernel.org/powerpc/c/c0215e2d72debcd9cbc1c002fb012d50a3140387

cheers