From: Dmitry Fleytman <dmitry@daynix.com>
To: qemu-devel@nongnu.org
Cc: Yan Vugenfirer <yan@daynix.com>,
Alexander Duyck <alexander.h.duyck@intel.com>,
Dmitry Fleytman <dmitry@daynix.com>,
Chris Webb <chris.webb@elastichosts.com>,
Richard Davies <richard.davies@elastichosts.com>
Subject: [Qemu-devel] [PATCH V2] E1000 RX ring management fix
Date: Thu, 18 Oct 2012 20:59:10 +0200 [thread overview]
Message-ID: <1350586751-19050-1-git-send-email-dmitry@daynix.com> (raw)
Following patch fixes improper RX ring management E1000 code
Changes from version 1:
1st patch changed so it drops check_rxov field because it is redundant and leads to race conditions
See commit description for details
2nd patch (live migration) dropped because corresponding field got deleted
Also I've made short experiment with an Intel adapter controlled by e1000e driver.
Indeed I saw no RX indication attempt when RX ring's RDH and RDT are equal.
Dmitry Fleytman (1):
Drop check_rxov, always treat RX ring with RHD == RDT as empty
hw/e1000.c | 7 ++-----
1 file changed, 2 insertions(+), 5 deletions(-)
--
1.7.11.4
next reply other threads:[~2012-10-18 19:11 UTC|newest]
Thread overview: 4+ messages / expand[flat|nested] mbox.gz Atom feed top
2012-10-18 18:59 Dmitry Fleytman [this message]
2012-10-18 18:59 ` [Qemu-devel] [PATCH V2] Drop check_rxov, always treat RX ring with RHD == RDT as empty Dmitry Fleytman
2012-10-18 19:20 ` Peter Maydell
2012-10-18 20:59 ` Dmitry Fleytman
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