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From: Gregory Haskins <ghaskins@novell.com>
To: alacrityvm-devel@lists.sourceforge.net
Cc: linux-kernel@vger.kernel.org, netdev@vger.kernel.org
Subject: [NET PATCH 0/9] ZC/L4RO enhancements to alacrityvm::vbus-enet driver
Date: Wed, 14 Oct 2009 11:58:45 -0400	[thread overview]
Message-ID: <20091014154457.18864.28382.stgit@dev.haskins.net> (raw)

The following series applies to the "linux-next" branch in the
alacrityvm tree:

git://git.kernel.org/pub/scm/linux/kernel/git/ghaskins/alacrityvm/linux-2.6.git

These patches add support for zero-copy, and reassembly-offloading to the
venet driver.  This means we can transmit a guest GSO packet directly into
the host hardware, and receive fully reassembled LRO frames without
artificially segmenting them.

Unofficial testing against a ZC/L4RO capable backend show that we are
supporting about 6.6Gb/s in throughput (vs 7.3Gb/s for native) which is
up from the prior result of 5.7Gb/s without affecting our latency numbers.
I will officially re-run my tests and update the graphs asap.

http://developer.novell.com/wiki/index.php/AlacrityVM

Kind Regards,
-Greg

---

Gregory Haskins (9):
      venet: add Layer-4 Reassembler Offload (L4RO) support
      venet: add a tx-complete event for out-of-order support
      venet: use an skblist for outstanding descriptors
      venet: add eventq protocol
      venet: cache the ringlen values at init
      venet: report actual used descriptor size
      venet: add pre-mapped tx descriptor feature
      venet: fix gso.hdr_len to report correct length
      venet: Update maintainer


 MAINTAINERS             |    7 
 drivers/net/vbus-enet.c |  770 +++++++++++++++++++++++++++++++++++++++++++----
 include/linux/venet.h   |   61 +++-
 3 files changed, 764 insertions(+), 74 deletions(-)

             reply	other threads:[~2009-10-14 15:58 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2009-10-14 15:58 Gregory Haskins [this message]
2009-10-14 15:58 ` [NET PATCH 1/9] venet: Update maintainer Gregory Haskins
2009-10-14 15:58 ` [NET PATCH 2/9] venet: fix gso.hdr_len to report correct length Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 3/9] venet: add pre-mapped tx descriptor feature Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 4/9] venet: report actual used descriptor size Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 5/9] venet: cache the ringlen values at init Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 6/9] venet: add eventq protocol Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 7/9] venet: use an skblist for outstanding descriptors Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 8/9] venet: add a tx-complete event for out-of-order support Gregory Haskins
2009-10-14 15:59 ` [NET PATCH 9/9] venet: add Layer-4 Reassembler Offload (L4RO) support Gregory Haskins

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