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From: "David S. Miller" <davem@davemloft.net>
To: Jeff Garzik <jgarzik@pobox.com>
Cc: mchan@broadcom.com, netdev@oss.sgi.com
Subject: Re: [PATCH 2.6.11 4/8] tg3: Add msi test
Date: Tue, 22 Mar 2005 14:17:14 -0800	[thread overview]
Message-ID: <20050322141714.4515258f.davem@davemloft.net> (raw)
In-Reply-To: <424098E2.6090007@pobox.com>

On Tue, 22 Mar 2005 17:14:58 -0500
Jeff Garzik <jgarzik@pobox.com> wrote:

> OK, so this is not a tg3-related problem at all.

Right.

> It really sounds like you should update pci_msi_quirk() to cover the 
> other affected cases.

That's not possible without either:

1) getting a lot of chipset vendors to reveal stuff they probably
   would rather keep secret (ie. that their chip in particular has
   MSI problems)

2) having a device on which to perform the MSI usability check

See #2?  That's the main issue from genericizing this, we need
a device on which to perform the usability check so that we can
handling a test interrupt and see if state got updated correctly.

So for the time being, Michael's change is OK until we find a
better solution that really does cover all the problem chipsets.

  reply	other threads:[~2005-03-22 22:17 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2005-03-22 22:07 [PATCH 2.6.11 4/8] tg3: Add msi test Michael Chan
2005-03-22 22:14 ` Jeff Garzik
2005-03-22 22:17   ` David S. Miller [this message]
2005-03-22 22:26     ` Jeff Garzik
2005-03-22 23:40       ` David S. Miller
2005-03-22 23:50         ` Jeff Garzik
2005-03-22 23:52           ` David S. Miller
  -- strict thread matches above, loose matches on Subject: below --
2005-03-23 18:16 Michael Chan
2005-03-21  7:43 Michael Chan
2005-03-22 20:57 ` Jeff Garzik

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