From: Yerden Zhumabekov <e_zhumabekov@sts.kz>
To: Stephen Hemminger <stephen@networkplumber.org>
Cc: "dev@dpdk.org" <dev@dpdk.org>
Subject: Re: [dpdk-dev] [PATCH] igb_uio: fall back to enable/disable irq mode
Date: Thu, 24 Jul 2014 09:11:36 +0600 [thread overview]
Message-ID: <53D07968.8030105@sts.kz> (raw)
In-Reply-To: <20140723110914.6b6902e8@haswell>
24.07.2014 0:09, Stephen Hemminger пишет:
>> Rewritten IRQ mode handling code introduced in commit 399a3f0d
>> (igb_uio: fix IRQ mode handling) renders some faulty NICs (VMware
>> e1000, for example) unusable if INTX mode is not supported.
>>
>> This patch gets these NICs up and running, but throwing a kernel
>> warning.
>>
>> Signed-off-by: Yerden Zhumabekov <e_zhumabekov@sts.kz>
> That is because the VMWare PCI INTX is broken.
> The masking logic doesn't work.
>
> Rather than applying this patch a deeper fix in E1000 and DPDK handling
> of link state is needed. Better to just make the E1000 able
> to function without IRQ for Link state than just pretend masking works
I'll dig deeper then, maybe I'll figure out something.
If IRQ doesn't hook anything then, I guess, NIC should be continuously
checked for link state. If so, where should I put my efforts? PMD?
--
Sincerely,
Yerden Zhumabekov
STS, ACI
Astana, KZ
next prev parent reply other threads:[~2014-07-24 3:10 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2014-07-23 3:38 [dpdk-dev] [PATCH] igb_uio dropped support for some faulty NICs Yerden Zhumabekov
2014-07-23 3:38 ` [dpdk-dev] [PATCH] igb_uio: fall back to enable/disable irq mode Yerden Zhumabekov
2014-07-23 18:07 ` Stephen Hemminger
2014-07-23 18:09 ` Stephen Hemminger
2014-07-24 3:11 ` Yerden Zhumabekov [this message]
2014-07-24 15:11 ` Stephen Hemminger
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