From: David Miller <davem@davemloft.net>
To: mcarlson@broadcom.com
Cc: netdev@vger.kernel.org, mchan@broadcom.com
Subject: Re: [PATCH net] tg3: Fix single-vector MSI-X code
Date: Tue, 17 Jan 2012 23:56:40 -0500 (EST) [thread overview]
Message-ID: <20120117.235640.1394063282901449922.davem@davemloft.net> (raw)
In-Reply-To: <1326850043-23417-1-git-send-email-mcarlson@broadcom.com>
From: "Matt Carlson" <mcarlson@broadcom.com>
Date: Tue, 17 Jan 2012 17:27:23 -0800
> Kdump kernels leave MSI-X interrupts (as setup by the crashed kernel)
> enabled. However, kdump only enables one CPU in the new environment,
> thus causing tg3 to abort MSI-X setup. When the driver attempts to
> enable INTA or MSI interrupt modes on a kdump kernel, interrupt
> delivery fails.
>
> This patch attempts to workaround the problem by forcing the driver
> to enable a single MSI-X interrupt. In such a configuration, the
> device's multivector interrupt mode must be disabled.
>
> Signed-off-by: Matt Carlson <mcarlson@broadcom.com>
Applied.
prev parent reply other threads:[~2012-01-18 4:56 UTC|newest]
Thread overview: 2+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-01-18 1:27 [PATCH net] tg3: Fix single-vector MSI-X code Matt Carlson
2012-01-18 4:56 ` David Miller [this message]
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