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82cc1a7a56
linux/net/ipv4
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Peter P Waskiewicz Jr 82cc1a7a56 [NET]: Add per-connection option to set max TSO frame size 
Update: My mailer ate one of Jarek's feedback mails...  Fixed the
parameter in netif_set_gso_max_size() to be u32, not u16.  Fixed the
whitespace issue due to a patch import botch.  Changed the types from
u32 to unsigned int to be more consistent with other variables in the
area.  Also brought the patch up to the latest net-2.6.26 tree.

Update: Made gso_max_size container 32 bits, not 16.  Moved the
location of gso_max_size within netdev to be less hotpath.  Made more
consistent names between the sock and netdev layers, and added a
define for the max GSO size.

Update: Respun for net-2.6.26 tree.

Update: changed max_gso_frame_size and sk_gso_max_size from signed to
unsigned - thanks Stephen!

This patch adds the ability for device drivers to control the size of
the TSO frames being sent to them, per TCP connection.  By setting the
netdevice's gso_max_size value, the socket layer will set the GSO
frame size based on that value.  This will propogate into the TCP
layer, and send TSO's of that size to the hardware.

This can be desirable to help tune the bursty nature of TSO on a
per-adapter basis, where one may have 1 GbE and 10 GbE devices
coexisting in a system, one running multiqueue and the other not, etc.

This can also be desirable for devices that cannot support full 64 KB
TSO's, but still want to benefit from some level of segmentation
offloading.

Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
2008-03-21 03:43:19 -07:00
..
ipvs net: replace remaining __FUNCTION__ occurrences 2008-03-05 20:47:47 -08:00
netfilter Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-21 03:42:24 -07:00
af_inet.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-18 00:37:55 -07:00
ah4.c [IPSEC]: Fix bogus usage of u64 on input sequence number 2008-02-12 22:50:35 -08:00
arp.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
cipso_ipv4.c NetLabel: introduce a new kernel configuration API for NetLabel 2008-02-05 09:44:20 -08:00
datagram.c [IPV4] net/ipv4: Use ipv4_is_<type> 2008-01-28 14:58:15 -08:00
devinet.c [NETNS]: Process inet_select_addr inside a namespace. 2008-02-28 20:52:54 -08:00
esp4.c [IPV4]: esp_output() misannotations 2008-03-17 22:50:23 -07:00
fib_frontend.c [NETNS]: Lookup in FIB semantic hashes taking into account the namespace. 2008-01-31 19:28:41 -08:00
fib_hash.c ipv4/fib_hash.c: fix NULL dereference 2008-02-19 16:28:54 -08:00
fib_lookup.h [IPV4] FIB_HASH: Reduce memory needs and speedup lookups 2008-01-28 15:02:46 -08:00
fib_rules.c [IPV4]: Consolidate fib_select_default. 2008-01-28 15:11:02 -08:00
fib_semantics.c [NETNS]: Lookup in FIB semantic hashes taking into account the namespace. 2008-01-31 19:28:41 -08:00
fib_trie.c fib_trie: /proc/net/route performance improvement 2008-02-12 17:53:31 -08:00
icmp.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
igmp.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
inet_connection_sock.c [INET]: Remove struct dst_entry *dst from request_sock_ops.rtx_syn_ack. 2008-02-29 11:43:03 -08:00
inet_diag.c [NETNS]: Tcp-v6 sockets per-net lookup. 2008-01-31 19:28:20 -08:00
inet_fragment.c [NETNS][FRAGS]: Make the pernet subsystem for fragments. 2008-01-28 15:10:40 -08:00
inet_hashtables.c [INET]: Unexport inet_listen_wlock 2008-02-13 17:40:25 -08:00
inet_lro.c [LRO] Fix lro_mgr->features checks 2008-01-08 23:30:18 -08:00
inet_timewait_sock.c [NET]: prot_inuse cleanups and optimizations 2008-01-28 15:00:36 -08:00
inetpeer.c [INET]: Use list_head-s in inetpeer.c 2007-11-12 21:27:28 -08:00
ip_forward.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ip_fragment.c [NETNS][FRAGS]: Make the pernet subsystem for fragments. 2008-01-28 15:10:40 -08:00
ip_gre.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ip_input.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ip_options.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ip_output.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ip_sockglue.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-18 00:37:55 -07:00
ipcomp.c [IPCOMP]: Disable BH on output when using shared tfm 2008-02-28 11:23:17 -08:00
ipconfig.c Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-2.6 2008-03-18 00:37:55 -07:00
ipip.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
ipmr.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
Kconfig [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
Makefile [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
netfilter.c [NETNS]: Add namespace parameter to ip_route_output_key. 2008-01-28 15:11:07 -08:00
proc.c [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
protocol.c [IPV4]: align inet_protos[] on SMP 2007-04-25 22:28:20 -07:00
raw.c [NET]: Add debugging names to __RW_LOCK_UNLOCKED macros. 2008-03-18 00:59:23 -07:00
route.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
syncookies.c [TCP]: Add IPv6 support to TCP SYN cookies 2008-03-04 15:18:21 +09:00
sysctl_net_ipv4.c [TCP]: Fix a bug in strategy_allowed_congestion_control 2008-01-31 19:28:23 -08:00
tcp_bic.c [TCP]: BIC web page link is corrected. 2008-02-28 22:14:32 -08:00
tcp_cong.c [TCP]: Uninline tcp_is_cwnd_limited 2008-01-28 15:01:48 -08:00
tcp_cubic.c [TCP]: TCP cubic v2.2 2008-03-04 14:17:41 -08:00
tcp_diag.c [INET]: Let inet_diag and friends autoload 2007-10-22 02:59:54 -07:00
tcp_highspeed.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_htcp.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_hybla.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_illinois.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_input.c net: replace remaining __FUNCTION__ occurrences 2008-03-05 20:47:47 -08:00
tcp_ipv4.c [IPV4]: Add 'rtable' field in struct sk_buff to alias 'dst' and avoid casts 2008-03-05 18:30:47 -08:00
tcp_lp.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_minisocks.c [TCP]: Add IPv6 support to TCP SYN cookies 2008-03-04 15:18:21 +09:00
tcp_output.c [NET]: Add per-connection option to set max TSO frame size 2008-03-21 03:43:19 -07:00
tcp_probe.c [NET]: Make /proc/net per network namespace 2007-10-10 16:49:06 -07:00
tcp_scalable.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_timer.c [TCP]: Do not purge sk_forward_alloc entirely in tcp_delack_timer(). 2008-01-28 15:01:42 -08:00
tcp_vegas.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_vegas.h [TCP]: congestion control API pass RTT in microseconds 2007-07-31 02:27:57 -07:00
tcp_veno.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp_westwood.c [TCP]: congestion control API pass RTT in microseconds 2007-07-31 02:27:57 -07:00
tcp_yeah.c [TCP]: Cong.ctrl modules: remove unused good_ack from cong_avoid 2008-01-28 14:55:41 -08:00
tcp.c [SOCK] proto: Add hashinfo member to struct proto 2008-02-03 04:28:52 -08:00
tunnel4.c [INET]: Cleanup the xfrm4_tunnel_(un)register 2007-11-10 21:48:54 -08:00
udp_impl.h [UDP]: Randomize port selection. 2007-10-10 16:48:31 -07:00
udp.c [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
udplite.c [UDP]: Revert udplite and code split. 2008-03-06 16:22:02 -08:00
xfrm4_input.c [IPSEC]: Fix transport-mode async resume on intput without netfilter 2008-01-28 15:00:10 -08:00
xfrm4_mode_beet.c [IPSEC] xfrm4_beet_input(): fix an if() 2008-02-05 02:51:39 -08:00
xfrm4_mode_transport.c [IPSEC]: Use IPv6 calling convention as the convention for x->mode->output 2007-10-10 16:55:54 -07:00
xfrm4_mode_tunnel.c [IPSEC]: Rename tunnel-mode functions to avoid collisions with tunnels 2008-01-28 14:59:18 -08:00
xfrm4_output.c [NETFILTER]: Introduce NF_INET_ hook values 2008-01-28 14:53:55 -08:00
xfrm4_policy.c [NET]: should explicitely initialize atomic_t field in struct dst_ops 2008-01-31 19:27:23 -08:00
xfrm4_state.c [IPSEC]: Kill afinfo->nf_post_routing 2008-01-28 14:53:55 -08:00
xfrm4_tunnel.c [IPCOMP]: Fix reception of incompressible packets 2008-01-31 19:27:24 -08:00