diff options
| author | Chris Leech <christopher.leech@intel.com> | 2006-05-23 17:55:33 -0700 |
|---|---|---|
| committer | David S. Miller <davem@sunset.davemloft.net> | 2006-06-17 21:25:48 -0700 |
| commit | 97fc2f0848c928c63c2ae619deee61a0b1107b69 (patch) | |
| tree | 651f5ec78128605736d6c777a13697d5e58a1b62 /include | |
| parent | de5506e155276d385712c2aa1c2d9a27cd4ed947 (diff) | |
[I/OAT]: Structure changes for TCP recv offload to I/OAT
Adds an async_wait_queue and some additional fields to tcp_sock, and a
dma_cookie_t to sk_buff.
Signed-off-by: Chris Leech <christopher.leech@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include')
| -rw-r--r-- | include/linux/skbuff.h | 4 | ||||
| -rw-r--r-- | include/linux/tcp.h | 8 | ||||
| -rw-r--r-- | include/net/sock.h | 2 | ||||
| -rw-r--r-- | include/net/tcp.h | 7 |
4 files changed, 21 insertions, 0 deletions
diff --git a/include/linux/skbuff.h b/include/linux/skbuff.h index f8f234708b9..23bad3bf3c9 100644 --- a/include/linux/skbuff.h +++ b/include/linux/skbuff.h @@ -29,6 +29,7 @@ #include <linux/net.h> #include <linux/textsearch.h> #include <net/checksum.h> +#include <linux/dmaengine.h> #define HAVE_ALLOC_SKB /* For the drivers to know */ #define HAVE_ALIGNABLE_SKB /* Ditto 8) */ @@ -285,6 +286,9 @@ struct sk_buff { __u16 tc_verd; /* traffic control verdict */ #endif #endif +#ifdef CONFIG_NET_DMA + dma_cookie_t dma_cookie; +#endif /* These elements must be at the end, see alloc_skb() for details. */ diff --git a/include/linux/tcp.h b/include/linux/tcp.h index 542d39596bd..c90daa5da6c 100644 --- a/include/linux/tcp.h +++ b/include/linux/tcp.h @@ -18,6 +18,7 @@ #define _LINUX_TCP_H #include <linux/types.h> +#include <linux/dmaengine.h> #include <asm/byteorder.h> struct tcphdr { @@ -233,6 +234,13 @@ struct tcp_sock { struct iovec *iov; int memory; int len; +#ifdef CONFIG_NET_DMA + /* members for async copy */ + struct dma_chan *dma_chan; + int wakeup; + struct dma_pinned_list *pinned_list; + dma_cookie_t dma_cookie; +#endif } ucopy; __u32 snd_wl1; /* Sequence for window update */ diff --git a/include/net/sock.h b/include/net/sock.h index c9fad6fb629..90c65cb091a 100644 --- a/include/net/sock.h +++ b/include/net/sock.h @@ -132,6 +132,7 @@ struct sock_common { * @sk_receive_queue: incoming packets * @sk_wmem_alloc: transmit queue bytes committed * @sk_write_queue: Packet sending queue + * @sk_async_wait_queue: DMA copied packets * @sk_omem_alloc: "o" is "option" or "other" * @sk_wmem_queued: persistent queue size * @sk_forward_alloc: space allocated forward @@ -205,6 +206,7 @@ struct sock { atomic_t sk_omem_alloc; struct sk_buff_head sk_receive_queue; struct sk_buff_head sk_write_queue; + struct sk_buff_head sk_async_wait_queue; int sk_wmem_queued; int sk_forward_alloc; gfp_t sk_allocation; diff --git a/include/net/tcp.h b/include/net/tcp.h index 3c989db8a7a..d0c2c2fa758 100644 --- a/include/net/tcp.h +++ b/include/net/tcp.h @@ -28,6 +28,7 @@ #include <linux/cache.h> #include <linux/percpu.h> #include <linux/skbuff.h> +#include <linux/dmaengine.h> #include <net/inet_connection_sock.h> #include <net/inet_timewait_sock.h> @@ -817,6 +818,12 @@ static inline void tcp_prequeue_init(struct tcp_sock *tp) tp->ucopy.len = 0; tp->ucopy.memory = 0; skb_queue_head_init(&tp->ucopy.prequeue); +#ifdef CONFIG_NET_DMA + tp->ucopy.dma_chan = NULL; + tp->ucopy.wakeup = 0; + tp->ucopy.pinned_list = NULL; + tp->ucopy.dma_cookie = 0; +#endif } /* Packet is added to VJ-style prequeue for processing in process |