Reposting this before the merge window as it will go through Jesse's
tree.
Given jumbo frames, the capacity of the slow path is improved by
a factor of 2.5x.
V7: - removed unintential kernel-doc comment
- WARN_ONCE() -> WARN(), message on single line, added \n
V6: - Added memory mapped netlink i/o support
- Drop user_features if old user space not aware of user features
reuses an existing datapath
V5: - Removed padding requirement in user space
- Added OVS_DP_F_UNALIGNED flag let user space signal ability to
receive unaligned Netlink messages, fall back to linear copy
otherwise.
V4: - Daniel Borkmann pointed out that the style in skbuff.h has changed
in net-next, adapted to no longer using extern in headers.
V3: - Removed unneeded alignment of nlmsg_len after padding
V2: - Added skb_zerocopy_headlen() to calculate headroom of destination
buffer. This also takes care of the from->head_frag issue.
- Attribute alignment for frag_list case
- API documentation
- performance data for CHECKSUM_PARTIAL tx case
Thomas Graf (8):
genl: Add genlmsg_new_unicast() for unicast message allocation
netlink: Avoid netlink mmap alloc if msg size exceeds frame size
openvswitch: Enable memory mapped Netlink i/o
net: Export skb_zerocopy() to zerocopy from one skb to another
openvswitch: Allow user space to announce ability to accept unaligned
Netlink messages
openvswitch: Allow update of dp with OVS_DP_CMD_NEW if NLM_F_REPLACE
is set
openvswitch: Drop user features if old user space attempted to create
datapath
openvswitch: Use skb_zerocopy() for upcall
include/linux/skbuff.h | 3 +
include/net/genetlink.h | 4 +
include/uapi/linux/openvswitch.h | 14 ++-
net/core/skbuff.c | 85 ++++++++++++++++
net/netfilter/nfnetlink_queue_core.c | 59 +----------
net/netlink/af_netlink.c | 4 +
net/netlink/genetlink.c | 21 ++++
net/openvswitch/datapath.c | 192 ++++++++++++++++++++++-------------
net/openvswitch/datapath.h | 2 +
9 files changed, 255 insertions(+), 129 deletions(-)
--
1.8.3.1
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