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OpenCloudOS-Kernel
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Michael Chan b0da853703 [NET]: Add ECN support for TSO 
In the current TSO implementation, NETIF_F_TSO and ECN cannot be
turned on together in a TCP connection.  The problem is that most
hardware that supports TSO does not handle CWR correctly if it is set
in the TSO packet.  Correct handling requires CWR to be set in the
first packet only if it is set in the TSO header.

This patch adds the ability to turn on NETIF_F_TSO and ECN using
GSO if necessary to handle TSO packets with CWR set.  Hardware
that handles CWR correctly can turn on NETIF_F_TSO_ECN in the dev->
features flag.

All TSO packets with CWR set will have the SKB_GSO_TCPV4_ECN set.  If
the output device does not have the NETIF_F_TSO_ECN feature set, GSO
will split the packet up correctly with CWR only set in the first
segment.

With help from Herbert Xu <herbert@gondor.apana.org.au>.

Since ECN can always be enabled with TSO, the SOCK_NO_LARGESEND sock
flag is completely removed.

Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
 		2006-06-29 16:58:08 -07:00
..
bluetooth [Bluetooth] Reduce L2CAP MTU for RFCOMM connections 2006-02-13 11:39:57 +01:00
irda Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-05-24 09:22:21 +01:00
netfilter Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
sctp Merge master.kernel.org:/pub/scm/linux/kernel/git/davem/net-2.6 2006-06-20 17:39:53 -07:00
tc_act [NETFILTER]: futher {ip,ip6,arp}_tables unification 2006-03-22 13:56:56 -08:00
tipc [TIPC]: Corrected potential misuse of tipc_media_addr structure. 2006-06-25 23:38:29 -07:00
act_api.h [PKT_SCHED]: Convert tc action functions to single skb pointers 2006-01-09 14:16:08 -08:00
act_generic.h [PKT_SCHED]: Fixup simple action define. 2005-05-19 12:42:39 -07:00
addrconf.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
af_unix.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
ah.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
arp.h [IPV4]: Possible cleanups. 2006-04-14 15:00:20 -07:00
atmclip.h [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h 2006-01-03 13:11:21 -08:00
ax25.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-05-06 19:59:18 +01:00
checksum.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
compat.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
datalink.h [NET]: Kill skb->real_dev 2005-08-29 15:32:25 -07:00
dn.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dn_dev.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dn_fib.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dn_neigh.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dn_nsp.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dn_route.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
dsfield.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
dst.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
esp.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
flow.h [DECnet]: Endian annotation and fixes for DECnet. 2006-03-20 22:42:39 -08:00
gen_stats.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
genetlink.h [PATCH] genetlink: don't touch module ref count 2006-01-13 13:06:40 -08:00
icmp.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ieee80211.h [PATCH] wireless: Changes to ieee80211.h for user space regulatory daemon 2006-06-15 15:48:13 -04:00
ieee80211_crypt.h [PATCH] ieee80211: Add TKIP crypt->build_iv 2006-01-27 17:08:07 -05:00
ieee80211_radiotap.h [PATCH] ieee80211: Added ieee80211_radiotap.h 2005-09-21 23:03:55 -04:00
ieee80211softmac.h [PATCH] softmac: Fix handling of authentication failure 2006-06-05 15:51:30 -04:00
ieee80211softmac_wx.h [PATCH] softmac: add SIOCSIWMLME 2006-04-24 16:15:58 -04:00
if_inet6.h [IPV6]: ADDRCONF: Use our standard algorithm for randomized ifid. 2006-03-20 16:54:09 -08:00
inet6_connection_sock.h [IPV6]: Generalise some functions 2006-01-03 13:10:46 -08:00
inet6_hashtables.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
inet_common.h [NET]: move struct proto_ops to const 2006-01-03 13:11:15 -08:00
inet_connection_sock.h [ICSK] compat: Introduce inet_csk_compat_[gs]etsockopt 2006-03-20 22:46:16 -08:00
inet_ecn.h [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h 2006-01-03 13:11:21 -08:00
inet_hashtables.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
inet_sock.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
inet_timewait_sock.h Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux-2.6 2006-05-06 19:59:18 +01:00
inetpeer.h [IPV4]: Safer reassembly 2006-01-03 13:10:31 -08:00
ip.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
ip6_checksum.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip6_fib.h [IPV6]: V6 route events reported with wrong netlink PID and seq number 2005-06-21 13:51:04 -07:00
ip6_route.h [IPV6]: ROUTE: Add experimental support for Route Information Option in RA (RFC4191). 2006-03-20 17:06:24 -08:00
ip6_tunnel.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ip_fib.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ip_mp_alg.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ip_vs.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ipcomp.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipconfig.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipip.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
ipv6.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
ipx.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
iw_handler.h [PATCH] WE-20 for kernel 2.6.16 2006-03-23 07:12:57 -05:00
lapb.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc.h [LLC]: llc_mac_hdr_init const arguments 2006-03-20 22:59:36 -08:00
llc_c_ac.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_c_ev.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_c_st.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_conn.h [PATCH] gfp flags annotations - part 1 2005-10-08 15:00:57 -07:00
llc_if.h [LLC]: add multicast support for datagrams 2006-06-17 21:26:08 -07:00
llc_pdu.h [LLC]: Fix typo 2005-11-14 21:58:18 -08:00
llc_s_ac.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_s_ev.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_s_st.h Linux-2.6.12-rc2 2005-04-16 15:20:36 -07:00
llc_sap.h [LLC]: Fix the accept path 2005-09-22 07:57:21 -03:00
ndisc.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
neighbour.h [NEIGH]: Fix IP-over-ATM and ARP interaction. 2006-05-12 14:56:08 -07:00
netdma.h [I/OAT]: Utility functions for offloading sk_buff to iovec copies 2006-06-17 21:25:46 -07:00
netlink.h [NETLINK]: Generic netlink receive queue processor 2005-11-10 02:26:40 +01:00
netrom.h [NETROM]: Eleminate HZ from NET/ROM kernel interfaces 2006-05-03 23:27:47 -07:00
p8022.h [NET]: Fix sparse warnings 2005-08-29 16:01:32 -07:00
pkt_act.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
pkt_cls.h [NET]: Remove explicit initializations of skb->input_dev 2005-08-29 15:33:26 -07:00
pkt_sched.h [PKT_SCHED]: PSCHED_TADD() and PSCHED_TADD2() can result,tv_usec >= 1000000 2006-06-29 16:58:01 -07:00
protocol.h [NET]: Added GSO header verification 2006-06-29 16:57:53 -07:00
psnap.h [NET]: Kill skb->real_dev 2005-08-29 15:32:25 -07:00
raw.h Merge git://git.infradead.org/hdrcleanup-2.6 2006-06-20 15:10:08 -07:00
rawv6.h [IPV4/6]: Check if packet was actually delivered to a raw socket to decide whether to send an ICMP unreachable 2005-08-29 15:37:22 -07:00
red.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
request_sock.h [NET]: drop duplicate assignment in request_sock 2006-03-26 17:39:55 -08:00
rose.h [ROSE]: Eleminate HZ from ROSE kernel interfaces 2006-05-03 23:28:20 -07:00
route.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
sch_generic.h Don't include linux/config.h from anywhere else in include/ 2006-04-26 12:56:16 +01:00
scm.h [AF_UNIX]: Datagram getpeersec 2006-06-29 16:58:06 -07:00
slhc_vj.h [NET]: Remove __ARGS from include/net/slhc_vj.h 2005-07-05 15:12:04 -07:00
snmp.h [PATCH] smp_processor_id() cleanup 2005-06-21 18:46:13 -07:00
sock.h [NET]: Add ECN support for TSO 2006-06-29 16:58:08 -07:00
syncppp.h [PATCH] drivers/net/wan/: possible cleanups 2005-09-14 08:36:54 -04:00
tcp.h [NET]: Added GSO header verification 2006-06-29 16:57:53 -07:00
tcp_ecn.h [NET]: Add ECN support for TSO 2006-06-29 16:58:08 -07:00
tcp_states.h [TCP]: Move the TCPF_ enum to tcp_states.h 2006-01-03 13:10:57 -08:00
timewait_sock.h [TWSK]: Introduce struct timewait_sock_ops 2006-01-03 13:10:54 -08:00
transp_v6.h [ICSK]: Rename struct tcp_func to struct inet_connection_sock_af_ops 2006-01-03 13:10:38 -08:00
udp.h [INET_SOCK]: Move struct inet_sock & helper functions to net/inet_sock.h 2006-01-03 13:11:21 -08:00
x25.h [X25]: allow ITU-T DTE facilities for x25 2006-03-22 00:01:31 -08:00
x25device.h [X25]: Restore skb->dev setting in x25_type_trans(). 2006-04-09 22:37:18 -07:00
xfrm.h [IPSEC] xfrm: Use IPPROTO_MAX instead of 256 2006-06-17 21:28:43 -07:00