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| author | Eliezer Tamir <eliezer.tamir@linux.intel.com> | 2013-06-10 11:39:50 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2013-06-10 21:22:35 -0700 |
| commit | 060212928670593fb89243640bf05cf89560b023 (patch) | |
| tree | 32ae5c7be094983fb06430dbe09d36e2b317ca9c /include/net/sock.h | |
| parent | af12fa6e46aa651e7b86a4c4117b562518fef184 (diff) | |
| download | linux-stable-060212928670593fb89243640bf05cf89560b023.tar.gz linux-stable-060212928670593fb89243640bf05cf89560b023.tar.bz2 linux-stable-060212928670593fb89243640bf05cf89560b023.zip | |
net: add low latency socket poll
Adds an ndo_ll_poll method and the code that supports it.
This method can be used by low latency applications to busy-poll
Ethernet device queues directly from the socket code.
sysctl_net_ll_poll controls how many microseconds to poll.
Default is zero (disabled).
Individual protocol support will be added by subsequent patches.
Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com>
Signed-off-by: Jesse Brandeburg <jesse.brandeburg@intel.com>
Signed-off-by: Eliezer Tamir <eliezer.tamir@linux.intel.com>
Acked-by: Eric Dumazet <edumazet@google.com>
Tested-by: Willem de Bruijn <willemb@google.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/sock.h')
| -rw-r--r-- | include/net/sock.h | 4 |
1 files changed, 4 insertions, 0 deletions
diff --git a/include/net/sock.h b/include/net/sock.h index 66772cf8c3c5..ac8e1818380c 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -229,6 +229,7 @@ struct cg_proto; * @sk_omem_alloc: "o" is "option" or "other" * @sk_wmem_queued: persistent queue size * @sk_forward_alloc: space allocated forward + * @sk_napi_id: id of the last napi context to receive data for sk * @sk_allocation: allocation mode * @sk_sndbuf: size of send buffer in bytes * @sk_flags: %SO_LINGER (l_onoff), %SO_BROADCAST, %SO_KEEPALIVE, @@ -325,6 +326,9 @@ struct sock { #ifdef CONFIG_RPS __u32 sk_rxhash; #endif +#ifdef CONFIG_NET_LL_RX_POLL + unsigned int sk_napi_id; +#endif atomic_t sk_drops; int sk_rcvbuf; |