Messages in this thread | | | From | Gregory Haskins <> | Subject | [NET PATCH 0/9] ZC/L4RO enhancements to alacrityvm::vbus-enet driver | Date | Wed, 14 Oct 2009 11:58:45 -0400 |
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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
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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(-)
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