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From: Marc Zyngier <maz@kernel.org>
To: Sandor Bodo-Merle <sbodomerle@gmail.com>
Cc: "Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Ray Jui" <rjui@broadcom.com>,
	"Scott Branden" <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] PCI: iproc: Support multi-MSI only on uniprocessor kernel
Date: Sun, 06 Jun 2021 14:28:12 +0100	[thread overview]
Message-ID: <ee29ebea89cdde2ae891a53c92a8b7a1@kernel.org> (raw)
In-Reply-To: <20210606123044.31250-2-sbodomerle@gmail.com>

On 2021-06-06 13:30, Sandor Bodo-Merle wrote:
> The interrupt affinity scheme used by this driver is incompatible with
> multi-MSI as it implies moving the doorbell address to that of another 
> MSI
> group.  This isn't possible for multi-MSI, as all the MSIs must have 
> the
> same doorbell address. As such it is restricted to systems with a 
> single
> CPU.
> 
> Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs")
> Reported-by: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Sandor Bodo-Merle <sbodomerle@gmail.com>

Acked-by: Marc Zyngier <maz@kernel.org>

         M.
-- 
Jazz is not dead. It just smells funny...

WARNING: multiple messages have this Message-ID (diff)
From: Marc Zyngier <maz@kernel.org>
To: Sandor Bodo-Merle <sbodomerle@gmail.com>
Cc: "Lorenzo Pieralisi" <lorenzo.pieralisi@arm.com>,
	"Rob Herring" <robh@kernel.org>,
	"Krzysztof Wilczyński" <kw@linux.com>,
	"Bjorn Helgaas" <bhelgaas@google.com>,
	"Ray Jui" <rjui@broadcom.com>,
	"Scott Branden" <sbranden@broadcom.com>,
	bcm-kernel-feedback-list@broadcom.com, linux-pci@vger.kernel.org,
	linux-arm-kernel@lists.infradead.org,
	linux-kernel@vger.kernel.org
Subject: Re: [PATCH 2/2] PCI: iproc: Support multi-MSI only on uniprocessor kernel
Date: Sun, 06 Jun 2021 14:28:12 +0100	[thread overview]
Message-ID: <ee29ebea89cdde2ae891a53c92a8b7a1@kernel.org> (raw)
In-Reply-To: <20210606123044.31250-2-sbodomerle@gmail.com>

On 2021-06-06 13:30, Sandor Bodo-Merle wrote:
> The interrupt affinity scheme used by this driver is incompatible with
> multi-MSI as it implies moving the doorbell address to that of another 
> MSI
> group.  This isn't possible for multi-MSI, as all the MSIs must have 
> the
> same doorbell address. As such it is restricted to systems with a 
> single
> CPU.
> 
> Fixes: fc54bae28818 ("PCI: iproc: Allow allocation of multiple MSIs")
> Reported-by: Marc Zyngier <maz@kernel.org>
> Signed-off-by: Sandor Bodo-Merle <sbodomerle@gmail.com>

Acked-by: Marc Zyngier <maz@kernel.org>

         M.
-- 
Jazz is not dead. It just smells funny...

_______________________________________________
linux-arm-kernel mailing list
linux-arm-kernel@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/linux-arm-kernel

  reply	other threads:[~2021-06-06 13:29 UTC|newest]

Thread overview: 26+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2021-06-06 12:30 [PATCH 1/2] PCI: iproc: fix the base vector number allocation for multi-MSI Sandor Bodo-Merle
2021-06-06 12:30 ` Sandor Bodo-Merle
2021-06-06 12:30 ` [PATCH 2/2] PCI: iproc: Support multi-MSI only on uniprocessor kernel Sandor Bodo-Merle
2021-06-06 12:30   ` Sandor Bodo-Merle
2021-06-06 13:28   ` Marc Zyngier [this message]
2021-06-06 13:28     ` Marc Zyngier
2021-06-07 16:48   ` Ray Jui
2021-06-07 16:48     ` Ray Jui
2021-06-07 21:18     ` Pali Rohár
2021-06-07 21:18       ` Pali Rohár
2021-06-21 14:47   ` Lorenzo Pieralisi
2021-06-21 14:47     ` Lorenzo Pieralisi
2021-06-22 15:26     ` [PATCH v2 1/2] PCI: iproc: Fix multi-MSI base vector number allocation Sandor Bodo-Merle
2021-06-22 15:26       ` Sandor Bodo-Merle
2021-06-22 15:44       ` Lorenzo Pieralisi
2021-06-22 15:44         ` Lorenzo Pieralisi
2021-06-22 15:26     ` [PATCH v2 2/2] PCI: iproc: Support multi-MSI only on uniprocessor kernel Sandor Bodo-Merle
2021-06-22 15:26       ` Sandor Bodo-Merle
2021-06-06 13:26 ` [PATCH 1/2] PCI: iproc: fix the base vector number allocation for multi-MSI Marc Zyngier
2021-06-06 13:26   ` Marc Zyngier
2021-06-06 14:10 ` Pali Rohár
2021-06-06 14:10   ` Pali Rohár
2021-06-07 16:45 ` Ray Jui
2021-06-07 16:45   ` Ray Jui
2021-06-10 23:32 ` Bjorn Helgaas
2021-06-10 23:32   ` Bjorn Helgaas

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