Re: [PATCH 8/25] msi: Simplify the msi irq limit policy.

• To: "Eric W. Biederman" <[email protected]>
• Subject: Re: [PATCH 8/25] msi: Simplify the msi irq limit policy.
• From: Roland Dreier <[email protected]>
• Date: Tue, 20 Jun 2006 19:46:22 -0700
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• In-reply-to: <[email protected]> (Eric W. Biederman's message of "Tue, 20 Jun 2006 16:28:21 -0600")
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 > Only the s2io driver even takes advantage of this feature
 > all other drivers have a fixed number of irqs they need and
 > bail if they can't get them.

My todo list for the mthca (InfiniBand HCA) driver includes adding
support for more event queues.  When I do that, I'll likely want to
try to get something on the order of number_of_cpus plus two or three
MSI-X vectors, and fall back to a lower number of vectors if that
allocation fails.

 - R.
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---

• Follow-Ups:
  • Re: [PATCH 8/25] msi: Simplify the msi irq limit policy.
    • From: [email protected] (Eric W. Biederman)

• References:
  • [PATCH 0/25] Decouple IRQ issues (MSI, i386, x86_64, ia64)
    • From: [email protected] (Eric W. Biederman)
  • [PATCH 1/25] irq: Convert the move_irq flag from a 32bit word to a single bit
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 2/25] irq: Add moved_masked_irq
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 3/25] x86_64 irq: Reenable migrating irqs to other cpus.
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 4/25] msi: Simplify msi enable and disable.
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 5/25] msi: Make the msi boolean tests return either 0 or 1.
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 6/25] msi: Implement helper functions read_msi_msg and write_msi_msg.
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 7/25] msi: Refactor the msi_ops.
    • From: "Eric W. Biederman" <[email protected]>
  • [PATCH 8/25] msi: Simplify the msi irq limit policy.
    • From: "Eric W. Biederman" <[email protected]>

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