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freebsd-dev/sys/netinet
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Andre Oppermann 3c914c547e Allow drivers to specify a maximum TSO length in bytes if they are 
limited in the amount of data they can handle at once.

Drivers can set ifp->if_hw_tsomax before calling ether_ifattach() to
change the limit.

The lowest allowable size is IP_MAXPACKET / 8 (8192 bytes) as anything
less wouldn't be very useful anymore.  The upper limit is still at
IP_MAXPACKET (65536 bytes).  Raising it requires further auditing of
the IPv4/v6 code path's as the length field in the IP header would
overflow leading to confusion in firewalls and others packet handler on
the real size of the packet.

The placement into "struct ifnet" is a bit hackish but the best place
that was found.  When the stack/driver boundary is updated it should
be handled in a better way.

Submitted by:	cperciva (earlier version)
Reviewed by:	cperciva
Tested by:	cperciva
MFC after:	1 week (using spare struct members to preserve ABI)
2013-06-03 12:55:13 +00:00
..
cc Staticize malloc types. 2011-04-13 11:28:46 +00:00
khelp The TCP PAWS fix for kernels with fast tick rates (r231767) changed the TCP 2012-08-17 01:49:51 +00:00
libalias In m_megapullup() instead of reserving some space at the end of packet, 2013-03-17 07:37:10 +00:00
accf_data.c
accf_dns.c
accf_http.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
cc.h Use the full and proper company name for Swinburne University of Technology 2011-04-12 08:13:18 +00:00
icmp6.h Use FF02:0:0:0:0:2:FF00::/104 prefix for IPv6 Node Information Group 2013-05-04 19:16:26 +00:00
icmp_var.h Add rate limitation for SCTP OOTB responses. 2012-06-18 17:11:24 +00:00
if_atm.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_atm.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_ether.c Rate limit the number of remotely triggered ARP log messages 2013-05-11 10:51:32 +00:00
if_ether.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
igmp_var.h
igmp.c - Replace compat macros with function calls. 2013-03-16 08:58:28 +00:00
igmp.h
in_cksum.c nobody uses this file except the userspace ipfw code, but the cast 2012-07-31 08:04:49 +00:00
in_debug.c Remove last remnants of classful addressing: 2011-10-15 16:28:06 +00:00
in_gif.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
in_gif.h
in_mcast.c Remove unused variable. 2012-01-24 14:27:14 +00:00
in_pcb.c Remove redundant test, we know inp_lport is 0. 2013-01-25 20:14:27 +00:00
in_pcb.h Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
in_pcbgroup.c Implement a CPU-affine TCP and UDP connection lookup data structure, 2011-06-06 12:55:02 +00:00
in_proto.c Bunch of fixes to pfsync(4) module load/unload: 2012-01-09 08:50:22 +00:00
in_rmx.c Cleanup documentation: cloning route support has been removed in r186119. 2012-10-13 09:31:01 +00:00
in_systm.h
in_var.h Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
in.c Plug static llentry leak (ipv4 & ipv6 were affected). 2013-04-21 21:28:38 +00:00
in.h Move IPPROTO_IPV6 from #ifdef __BSD_VISIBLE to #if __POSIX_VISIBLE >= 201112 2013-04-27 23:36:01 +00:00
ip6.h Use IP6STAT_INC/IP6STAT_DEC macros to update ip6 stats. 2013-04-09 07:11:22 +00:00
ip_carp.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
ip_carp.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
ip_divert.c Switch the entire IPv4 stack to keep the IP packet header 2012-10-22 21:09:03 +00:00
ip_divert.h
ip_dummynet.h s/lenght/length/ in comments 2012-08-07 07:52:25 +00:00
ip_ecn.c
ip_ecn.h
ip_encap.c
ip_encap.h
ip_fastfwd.c Remove the recently added sysctl variable net.pfil.forward. 2012-11-02 01:20:55 +00:00
ip_fw.h Add ipfw support for setting/matching DiffServ codepoints (DSCP). 2013-03-20 10:35:33 +00:00
ip_gre.c Add IFF_MONITOR support to gre(4). 2013-05-11 19:05:38 +00:00
ip_gre.h
ip_icmp.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
ip_icmp.h
ip_id.c Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
ip_input.c Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
ip_ipsec.c Switch the entire IPv4 stack to keep the IP packet header 2012-10-22 21:09:03 +00:00
ip_ipsec.h
ip_mroute.c Fix incomplete printf. 2013-04-16 19:32:12 +00:00
ip_mroute.h Remove route caching from IP multicast routing code. There is no 2012-07-02 19:44:18 +00:00
ip_options.c - Replace compat macros with function calls. 2013-03-16 08:58:28 +00:00
ip_options.h In ip_stripoptions(): 2012-10-12 09:24:24 +00:00
ip_output.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
ip_var.h Reflect removing of the counter_u64_subtract() function in the macro. 2013-04-12 16:29:15 +00:00
ip.h Add ToS definitions for DiffServ Codepoints as per RFC2474. 2012-05-04 21:00:32 +00:00
pim_var.h Virtualize the IPv4 multicast routing code. 2010-06-02 15:44:43 +00:00
pim.h
raw_ip.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
sctp_asconf.c Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctp_asconf.h Pass the src and dst address of a received packet explicitly around. 2012-06-28 16:01:08 +00:00
sctp_auth.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
sctp_auth.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_bsd_addr.c Testing an interface property should depend on the interface, not 2012-08-04 08:03:30 +00:00
sctp_bsd_addr.h Do packet logging in a consistent way. 2012-06-24 21:25:54 +00:00
sctp_cc_functions.c Get rid of a gcc'ism. 2012-09-06 07:03:56 +00:00
sctp_constants.h Add a macro for checking for IPv4 link local addresses. 2013-03-31 18:27:46 +00:00
sctp_crc32.c Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_crc32.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_dtrace_declare.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_dtrace_define.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_header.h Don't include a structure containing a flexible array in another 2012-09-07 13:36:42 +00:00
sctp_indata.c Don't send kernel provided information in the User Initiated 2013-02-11 13:57:03 +00:00
sctp_indata.h Pass the src and dst address of a received packet explicitly around. 2012-06-28 16:01:08 +00:00
sctp_input.c Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctp_input.h Don't include a structure containing a flexible array in another 2012-09-07 13:36:42 +00:00
sctp_lock_bsd.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_os_bsd.h Withdraw http://svnweb.freebsd.org/changeset/base/250809 2013-05-24 09:21:18 +00:00
sctp_os.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_output.c Don't send an ABORT chunk with verification 0. 2013-05-17 21:45:52 +00:00
sctp_output.h Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctp_pcb.c Honor the net.inet6.ip6.v6only sysctl variable and the IPV6_V6ONLY 2013-05-10 18:09:38 +00:00
sctp_pcb.h Send the adaptation layer indication only if set by the user. 2013-02-11 21:02:49 +00:00
sctp_peeloff.c Add support for sctp_peeloff() also in the front states of the 2012-11-26 16:44:03 +00:00
sctp_peeloff.h Remove unused function. 2012-11-25 14:25:08 +00:00
sctp_ss_functions.c Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_structs.h Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctp_sysctl.c Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctp_sysctl.h Whitespace cleanup. 2012-06-25 17:15:09 +00:00
sctp_timer.c Fix a bug where HEARTBEATs were still sent in SHUTDOWN_SENT or 2013-02-09 08:27:08 +00:00
sctp_timer.h Use consistent text at the begining of the files. 2012-05-23 11:26:28 +00:00
sctp_uio.h Whitespace changes due to upstream integration of SCTP changes in the 2012-10-29 20:47:32 +00:00
sctp_usrreq.c Send the adaptation layer indication only if set by the user. 2013-02-11 21:02:49 +00:00
sctp_var.h Whitespace changes due to upstream integration of SCTP changes in the 2012-10-29 20:47:32 +00:00
sctp.h Cleanup the handling of address scopes. Announce in the INIT/INIT-ACK 2013-02-09 17:26:14 +00:00
sctputil.c Use LIST_EMPTY when appropriate. 2013-06-02 10:35:08 +00:00
sctputil.h Add support for SCTP/UDP/IPV6. 2012-11-17 20:04:04 +00:00
siftr.c The hashmask returned by hashinit() is a valid index in the returned hash array. 2013-03-07 04:42:20 +00:00
tcp_debug.c Switch the entire IPv4 stack to keep the IP packet header 2012-10-22 21:09:03 +00:00
tcp_debug.h
tcp_fsm.h
tcp_hostcache.c - Update cachelimit after hashsize and bucketlimit were set. 2012-10-19 14:00:03 +00:00
tcp_hostcache.h
tcp_input.c Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
tcp_lro.c Fix tcp_lro_rx_ipv4() for drivers that do not set CSUM_IP_CHECKED. 2013-02-21 17:00:35 +00:00
tcp_lro.h MFp4 bz_ipv6_fast: 2012-05-24 23:03:23 +00:00
tcp_offload.c - Updated TOE support in the kernel. 2012-06-19 07:34:13 +00:00
tcp_offload.h - Updated TOE support in the kernel. 2012-06-19 07:34:13 +00:00
tcp_output.c Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
tcp_reass.c uma_zone_set_max() directly returns the rounded effective zone 2013-02-01 14:21:09 +00:00
tcp_sack.c Covers values if (BYTES_THIS_ACK(tp, th) / tp->t_maxseg) value is from 2011-03-28 19:03:56 +00:00
tcp_seq.h Fix PAWS (Protect Against Wrapped Sequence numbers) in cases when 2012-02-15 16:09:56 +00:00
tcp_subr.c Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
tcp_syncache.c uma_zone_set_max() directly returns the rounded effective zone 2013-02-01 14:21:09 +00:00
tcp_syncache.h Change the syncache count reporting the current number of entries 2012-10-28 18:07:34 +00:00
tcp_timer.c - Make callout(9) tickless, relying on eventtimers(4) as backend for 2013-03-04 11:09:56 +00:00
tcp_timer.h Add DELACK to list of timers. 2012-11-27 19:07:28 +00:00
tcp_timewait.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
tcp_usrreq.c Add checks for SO_NO_OFFLOAD in a couple of places that I missed earlier 2013-01-26 01:41:42 +00:00
tcp_var.h Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
tcp.h Add placeholder constants to reserve a portion of the socket option 2013-02-01 15:32:20 +00:00
tcpip.h
toecore.c Teach toe_l2_resolve to resolve IPv6 destinations too. 2013-01-26 00:57:29 +00:00
toecore.h Correctly handle the case where an inp has already been dropped by the time 2012-08-21 18:09:33 +00:00
udp_usrreq.c More warnings for zones that depend on the kern.ipc.maxsockets limit. 2012-12-08 12:51:06 +00:00
udp_var.h Export the udp_cksum sysctl for upcoming SCTP work. Rather than always, 2012-03-27 15:14:29 +00:00
udp.h Add placeholder constants to reserve a portion of the socket option 2013-02-01 15:32:20 +00:00