diff options
| author | William Tu <u9012063@gmail.com> | 2019-07-18 13:11:14 -0700 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@samsung.com> | 2019-07-19 17:42:06 +0300 |
| commit | 0de1b425962db073ebbaa3ddbde445580afda840 (patch) | |
| tree | 583c01f90fcb0422e2ea500bbe20c945cb81f12e /lib/util.h | |
| parent | 884ca8aceb0cbb5dc8ca3d124a59157ef2b941cf (diff) | |
| download | openvswitch-0de1b425962db073ebbaa3ddbde445580afda840.tar.gz | |
netdev-afxdp: add new netdev type for AF_XDP.
The patch introduces experimental AF_XDP support for OVS netdev.
AF_XDP, the Address Family of the eXpress Data Path, is a new Linux socket
type built upon the eBPF and XDP technology. It is aims to have comparable
performance to DPDK but cooperate better with existing kernel's networking
stack. An AF_XDP socket receives and sends packets from an eBPF/XDP program
attached to the netdev, by-passing a couple of Linux kernel's subsystems
As a result, AF_XDP socket shows much better performance than AF_PACKET
For more details about AF_XDP, please see linux kernel's
Documentation/networking/af_xdp.rst. Note that by default, this feature is
not compiled in.
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Ilya Maximets <i.maximets@samsung.com>
Diffstat (limited to 'lib/util.h')
| -rw-r--r-- | lib/util.h | 5 |
1 files changed, 5 insertions, 0 deletions
diff --git a/lib/util.h b/lib/util.h index 095ede20f..7ad8758fe 100644 --- a/lib/util.h +++ b/lib/util.h @@ -169,6 +169,11 @@ void ovs_strzcpy(char *dst, const char *src, size_t size); int string_ends_with(const char *str, const char *suffix); +void *xmalloc_pagealign(size_t) MALLOC_LIKE; +void free_pagealign(void *); +void *xmalloc_size_align(size_t, size_t) MALLOC_LIKE; +void free_size_align(void *); + /* The C standards say that neither the 'dst' nor 'src' argument to * memcpy() may be null, even if 'n' is zero. This wrapper tolerates * the null case. */ |