netdev - Re: [PATCH] [e1000] Lower the MSI unavailable message to INFO priority

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Message-ID: <464CC5EC.4020202@redhat.com>
Date:	Thu, 17 May 2007 17:15:24 -0400
From:	Chuck Ebbert <cebbert@...hat.com>
To:	"Kok, Auke" <auke-jan.h.kok@...el.com>
CC:	Jeff Garzik <jeff@...zik.org>, "H. Peter Anvin" <hpa@...or.com>,
	e1000-devel@...ts.sourceforge.net, john.ronciak@...el.com,
	jesse.brandeburg@...el.com, jeffrey.t.kirsher@...el.com,
	netdev@...r.kernel.org
Subject: Re: [PATCH] [e1000] Lower the MSI unavailable message to INFO priority

Kok, Auke wrote:
> Jeff Garzik wrote:
>> H. Peter Anvin wrote:
>>> diff --git a/drivers/net/e1000/e1000_main.c
>>> b/drivers/net/e1000/e1000_main.c
>>> index 637ae8f..089ae3f 100644
>>> --- a/drivers/net/e1000/e1000_main.c
>>> +++ b/drivers/net/e1000/e1000_main.c
>>> @@ -307,7 +307,7 @@ static int e1000_request_irq(struct e1000_adapter
>>> *adapter)
>>>      if (adapter->hw.mac_type >= e1000_82571) {
>>>          adapter->have_msi = TRUE;
>>>          if ((err = pci_enable_msi(adapter->pdev))) {
>>> -            DPRINTK(PROBE, ERR,
>>> +            DPRINTK(PROBE, INFO,
>>>               "Unable to allocate MSI interrupt Error: %d\n", err);
>>>              adapter->have_msi = FALSE;
>>
>>
>> Actually, it should not print any message at all.
>>
>> pci_enable_msi() failure is a normal event (as you point out).  Even
>> at KERN_INFO level, the message is still misleading.
> 
> I've been reworking some of this code and there is even a
> pci_disable_msi() missing in case pci_request_irq failed. I'll post a
> patch to clean it up in a second.

It seems ixgb needs this too (the message removal at least?)


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