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freebsd-dev/sys/net
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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
..
bpf_buffer.c Changes to resolve races in bpfread() and catchpacket() that, at worst, 2012-12-10 16:14:44 +00:00
bpf_buffer.h Call bpf_jitter() before acquiring BPF global lock due to malloc() being used inside bpf_jitter. 2012-05-21 22:19:19 +00:00
bpf_filter.c Clear the filter memory area before using it. Leaving it uninitialized may 2011-07-14 21:06:22 +00:00
bpf_jitter.c
bpf_jitter.h
bpf_zerocopy.c After the PHYS_TO_VM_PAGE() function was de-inlined, the main reason 2012-08-05 14:11:42 +00:00
bpf_zerocopy.h - Fix trivial typo 2012-01-14 17:07:52 +00:00
bpf.c While waiting for the bpf hold buffer to become idle, check 2013-05-23 21:33:10 +00:00
bpf.h Changes to resolve races in bpfread() and catchpacket() that, at worst, 2012-12-10 16:14:44 +00:00
bpfdesc.h Changes to resolve races in bpfread() and catchpacket() that, at worst, 2012-12-10 16:14:44 +00:00
bridgestp.c Use m_get/m_gethdr instead of compat macros. 2013-03-15 12:55:30 +00:00
bridgestp.h Move the interface media check to a taskqueue, some interfaces (usb) sleep 2012-04-20 10:06:28 +00:00
ethernet.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
fddi.h
firewire.h
flowtable.c - Move jenkins.h to jenkins_hash.c 2012-09-04 12:07:33 +00:00
flowtable.h
ieee8023ad_lacp.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
ieee8023ad_lacp.h
if_arc.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_arcsubr.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_arp.h
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_atmsubr.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_bridge.c Use IP6STAT_INC/IP6STAT_DEC macros to update ip6 stats. 2013-04-09 07:11:22 +00:00
if_bridgevar.h
if_clone.c Fix VIMAGE build. 2012-10-17 21:19:27 +00:00
if_clone.h Make the "struct if_clone" opaque to users of the cloning API. Users 2012-10-16 13:37:54 +00:00
if_dead.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_debug.c Add infrastructure to allow all frames/packets received on an interface 2011-07-03 12:22:02 +00:00
if_disc.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_dl.h Use the LLINDEX macro to access the link-level I/F index. This makes 2012-05-19 02:39:43 +00:00
if_edsc.c Make the "struct if_clone" opaque to users of the cloning API. Users 2012-10-16 13:37:54 +00:00
if_ef.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_enc.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_enc.h
if_epair.c Utilize new macro to initialize if_baudrate(). 2012-10-18 09:57:56 +00:00
if_ethersubr.c Use separate function to update mbuf checksum flags instead of 2013-05-18 08:14:21 +00:00
if_faith.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_fddisubr.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_fwsubr.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_gif.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_gif.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_gre.c Add IFF_MONITOR support to gre(4). 2013-05-11 19:05:38 +00:00
if_gre.h gre(4) was using a field in the softc to detect possible recursion. 2011-06-18 09:34:03 +00:00
if_iso88025subr.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_lagg.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_lagg.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_llatbl.c Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
if_llatbl.h Back out r249318, r249320 and r249327 due to a heisenbug most 2013-05-06 16:42:18 +00:00
if_llc.h
if_loop.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_media.c
if_media.h Add media types for 40G media that might be used with FreeBSD. 2012-04-10 13:59:35 +00:00
if_mib.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
if_mib.h
if_pflog.h o Create directory sys/netpfil, where all packet filters should 2012-09-14 11:51:49 +00:00
if_pfsync.h Finish the r244185. This fixes ever growing counter of pfsync bad 2013-02-15 09:03:56 +00:00
if_sppp.h
if_spppfr.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
if_spppsubr.c Correct a few sizeof()s 2013-05-01 04:37:34 +00:00
if_stf.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_stf.h
if_tap.c Mechanically substitute flags from historic mbuf allocator with 2012-12-05 08:04:20 +00:00
if_tap.h
if_tapvar.h Revert part of an earlier patch attempt that snuck in with r240938. 2012-09-25 23:41:45 +00:00
if_tun.c Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
if_tun.h
if_types.h A major overhaul of the CARP implementation. The ip_carp.c was started 2011-12-16 12:16:56 +00:00
if_var.h Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
if_vlan_var.h Clarify throughout the vlan(4) code the difference between a "tag" (the 2012-01-12 18:39:37 +00:00
if_vlan.c Recover missing arp_ifinit() call. 2013-04-18 20:13:33 +00:00
if.c Allow drivers to specify a maximum TSO length in bytes if they are 2013-06-03 12:55:13 +00:00
if.h provide helper if_initbaudrate() to set if_baudrate_pf and if_baudrate_pf. 2012-10-17 19:24:13 +00:00
iso88025.h Add const qualifier to the dst parameter of the ifnet if_output method. 2013-04-26 12:50:32 +00:00
netisr_internal.h Rework netisr policy mechanism so that per-protocol dispatch policies can 2011-05-24 12:34:19 +00:00
netisr.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
netisr.h Rework netisr policy mechanism so that per-protocol dispatch policies can 2011-05-24 12:34:19 +00:00
netmap_user.h clarify usage of NETMAP_BUF 2013-05-30 13:41:19 +00:00
netmap.h Bring in a number of new features, mostly implemented by Michio Honda: 2013-05-30 14:07:14 +00:00
pf_mtag.h o Create directory sys/netpfil, where all packet filters should 2012-09-14 11:51:49 +00:00
pfil.c Fix style and comments. 2013-03-19 05:51:47 +00:00
pfil.h Fix style and comments. 2013-03-19 05:51:47 +00:00
pfkeyv2.h
pfvar.h Utilize Jenkins hash with random seed for source nodes storage. 2012-09-20 06:52:05 +00:00
ppp_defs.h Allow certain headers to be included more easily. 2013-05-21 21:20:10 +00:00
radix_mpath.c When the RADIX_MPATH kernel option is enabled, the RADIX_MPATH code tries 2011-08-25 04:31:20 +00:00
radix_mpath.h
radix.c
radix.h Make KBI changes required for future MFCing of inpcb rtentry / llentry caching. 2011-09-20 20:27:26 +00:00
raw_cb.c Mark all SYSCTL_NODEs static that have no corresponding SYSCTL_DECLs. 2011-11-07 15:43:11 +00:00
raw_cb.h Pass the fibnum where we need filtering of the message on the 2011-09-28 13:48:36 +00:00
raw_usrreq.c Pass the fibnum where we need filtering of the message on the 2011-09-28 13:48:36 +00:00
route.c Fix rte leak introduced in r248070. 2013-05-18 07:10:22 +00:00
route.h Fix long-standing issue with interface routes being unprotected: 2013-03-08 20:33:50 +00:00
rtsock.c - Use m_getcl() instead of hand allocating. 2013-03-15 12:52:59 +00:00
slcompress.c
slcompress.h
vnet.c Mark MALLOC_DEFINEs static that have no corresponding MALLOC_DECLAREs. 2011-11-07 06:44:47 +00:00
vnet.h
zlib.c Juggle some internal symbols from our antique zlib (that originally came 2013-01-06 14:59:59 +00:00
zlib.h Juggle some internal symbols from our antique zlib (that originally came 2013-01-06 14:59:59 +00:00
zutil.h