diff options
| author | William Tu <u9012063@gmail.com> | 2020-04-14 06:22:55 -0700 |
|---|---|---|
| committer | Ilya Maximets <i.maximets@ovn.org> | 2020-04-28 17:58:31 +0200 |
| commit | 5bfc519fee499b5b8b1eeb2d26c1baa6a5f42d5b (patch) | |
| tree | 3f58126a136172430e562dd69b681597aadc3b07 /lib/netdev-linux.c | |
| parent | ffc0c87393012402e4647c07cc848f68aee7faf9 (diff) | |
| download | openvswitch-5bfc519fee499b5b8b1eeb2d26c1baa6a5f42d5b.tar.gz | |
netdev-afxdp: Add interrupt mode netdev class.
The patch adds a new netdev class 'afxdp-nonpmd' to enable afxdp
interrupt mode. This is similar to 'type=afxdp', except that the
is_pmd field is set to false. As a result, the packet processing
is handled by main thread, not pmd thread. This avoids burning
the CPU to always 100% when there is no traffic.
Signed-off-by: William Tu <u9012063@gmail.com>
Signed-off-by: Ilya Maximets <i.maximets@ovn.org>
Diffstat (limited to 'lib/netdev-linux.c')
| -rw-r--r-- | lib/netdev-linux.c | 37 |
1 files changed, 23 insertions, 14 deletions
diff --git a/lib/netdev-linux.c b/lib/netdev-linux.c index ff045cb12..1d7ed0145 100644 --- a/lib/netdev-linux.c +++ b/lib/netdev-linux.c @@ -3599,24 +3599,33 @@ const struct netdev_class netdev_internal_class = { }; #ifdef HAVE_AF_XDP +#define NETDEV_AFXDP_CLASS_COMMON \ + .construct = netdev_afxdp_construct, \ + .destruct = netdev_afxdp_destruct, \ + .get_stats = netdev_afxdp_get_stats, \ + .get_custom_stats = netdev_afxdp_get_custom_stats, \ + .get_status = netdev_linux_get_status, \ + .set_config = netdev_afxdp_set_config, \ + .get_config = netdev_afxdp_get_config, \ + .reconfigure = netdev_afxdp_reconfigure, \ + .get_numa_id = netdev_linux_get_numa_id, \ + .send = netdev_afxdp_batch_send, \ + .rxq_construct = netdev_afxdp_rxq_construct, \ + .rxq_destruct = netdev_afxdp_rxq_destruct, \ + .rxq_recv = netdev_afxdp_rxq_recv + const struct netdev_class netdev_afxdp_class = { NETDEV_LINUX_CLASS_COMMON, + NETDEV_AFXDP_CLASS_COMMON, .type = "afxdp", .is_pmd = true, - .init = netdev_afxdp_init, - .construct = netdev_afxdp_construct, - .destruct = netdev_afxdp_destruct, - .get_stats = netdev_afxdp_get_stats, - .get_custom_stats = netdev_afxdp_get_custom_stats, - .get_status = netdev_linux_get_status, - .set_config = netdev_afxdp_set_config, - .get_config = netdev_afxdp_get_config, - .reconfigure = netdev_afxdp_reconfigure, - .get_numa_id = netdev_linux_get_numa_id, - .send = netdev_afxdp_batch_send, - .rxq_construct = netdev_afxdp_rxq_construct, - .rxq_destruct = netdev_afxdp_rxq_destruct, - .rxq_recv = netdev_afxdp_rxq_recv, +}; + +const struct netdev_class netdev_afxdp_nonpmd_class = { + NETDEV_LINUX_CLASS_COMMON, + NETDEV_AFXDP_CLASS_COMMON, + .type = "afxdp-nonpmd", + .is_pmd = false, }; #endif |