Re: [PATCH] ALSA: hda-intel - Disable MSI support by default

• To: Jeff Garzik <[email protected]>
• Subject: Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
• From: Roland Dreier <[email protected]>
• Date: Thu, 16 Nov 2006 09:24:59 -0800
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• Cc: Krzysztof Halasa <[email protected]>, Benjamin Herrenschmidt <[email protected]>, David Miller <[email protected]>, [email protected], [email protected], [email protected]
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• In-reply-to: <[email protected]> (Jeff Garzik's message of "Thu, 16 Nov 2006 10:27:12 -0500")
• References: <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]> <[email protected]>
• Sender: [email protected]
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 > Most interrupt-driven devices have an interrupt mask register of some
 > sort.  The nice thing about PCI_COMMAND_INTX_DISABLE is that it is
 > standardized.

You all got on me about quoting the spec about not generating INTx
interrupts after MSI is enabled.  What makes you think that setting
some bit in the command register, which wasn't even standardized until
PCI 2.3 and which most hardware designers probably forgot about, is
going to work on broken devices?

 - R.
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---

• References:
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Jeff Garzik <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: David Miller <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Jeff Garzik <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: David Miller <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Benjamin Herrenschmidt <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Jeff Garzik <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Benjamin Herrenschmidt <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Jeff Garzik <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Krzysztof Halasa <[email protected]>
  • Re: [PATCH] ALSA: hda-intel - Disable MSI support by default
    • From: Jeff Garzik <[email protected]>

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