From: Thomas Monjalon <thomas.monjalon@6wind.com>
To: Tim Shearer <tim.shearer@overturenetworks.com>
Cc: dev@dpdk.org
Subject: Re: [dpdk-dev] [PATCH] lib/librte_ether: Prevent link status race condition when LSI enabled
Date: Wed, 04 Nov 2015 23:13:41 +0100 [thread overview]
Message-ID: <1905391.mr0njJUdyB@xps13> (raw)
In-Reply-To: <1445981935-3559-1-git-send-email-tim.shearer@overturenetworks.com>
2015-10-27 17:38, Tim Shearer:
> Calling the Ethernet driver's link_update function from rte_eth_dev_start can result in a race condition if the NIC raises the link interrupt at the same time. Depending on the interrupt handler implementation, the race can cause the it to think that it received two consecutive link up interrupts, and it exits without calling the user callback. Appears to impact E1000/IGB and virtio drivers only.
>
> Signed-off-by: Tim Shearer <tim.shearer@overturenetworks.com>
Applied, thanks
prev parent reply other threads:[~2015-11-04 22:15 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2015-09-24 20:44 [dpdk-dev] [PATCH] librte: Link status interrupt race condition, IGB E1000 Tim Shearer
2015-10-25 22:55 ` Thomas Monjalon
2015-10-26 5:25 ` Lu, Wenzhuo
2015-10-27 17:45 ` Thomas Monjalon
2015-10-27 21:38 ` [dpdk-dev] [PATCH] lib/librte_ether: Prevent link status race condition when LSI enabled Tim Shearer
2015-11-04 22:13 ` Thomas Monjalon [this message]
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