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freebsd-dev/sys/netgraph
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Andre Oppermann 78ba57b9e1 Move ethernet VLAN tags from mtags to its own mbuf packet header field 
m_pkthdr.ether_vlan.  The presence of the M_VLANTAG flag on the mbuf
signifies the presence and validity of its content.

Drivers that support hardware VLAN tag stripping fill in the received
VLAN tag (containing both vlan and priority information) into the
ether_vtag mbuf packet header field:

	m->m_pkthdr.ether_vtag = vlan_id;	/* ntohs()? */
	m->m_flags |= M_VLANTAG;

to mark the packet m with the specified VLAN tag.

On output the driver should check the mbuf for the M_VLANTAG flag to
see if a VLAN tag is present and valid:

	if (m->m_flags & M_VLANTAG) {
		... = m->m_pkthdr.ether_vtag;	/* htons()? */
		... pass tag to hardware ...
	}

VLAN tags are stored in host byte order.  Byte swapping may be necessary.

(Note: This driver conversion was mechanic and did not add or remove any
byte swapping in the drivers.)

Remove zone_mtag_vlan UMA zone and MTAG_VLAN definition.  No more tag
memory allocation have to be done.

Reviewed by:	thompsa, yar
Sponsored by:	TCP/IP Optimization Fundraise 2005
2006-09-17 13:33:30 +00:00
..
atm Replace the array initialization using the gcc-specific format 2006-06-02 09:08:51 +00:00
bluetooth s/USBDEVNAME/device_get_nameunit/g 2006-09-07 23:38:09 +00:00
netflow o Replace disappeared URLs to Cisco docs by new ones, style. 2006-04-25 20:01:50 +00:00
netgraph.h Use NET_CALLOUT_MPSAFE for netgraph callout initializer. 2006-06-06 08:05:27 +00:00
ng_async.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_async.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_atmllc.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_atmllc.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_base.c When counting nodes second time, use the same criteria as for 2006-06-07 12:42:15 +00:00
ng_bpf.c Fix build without BPF_JITTER option. 2005-12-07 21:41:45 +00:00
ng_bpf.h Fix typo in a comment. 2005-02-12 18:10:26 +00:00
ng_bridge.c In revision 1.29 timeout() was converted to ng_callout(). 2005-02-09 15:14:44 +00:00
ng_bridge.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_cisco.c NG_MKRESPONSE() macro includes sizeof struct ng_mesg when doing allocation. 2005-04-13 14:03:28 +00:00
ng_cisco.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_device.c Change m_uiotombuf so it will accept offset at which data should be copied 2005-05-04 18:55:03 +00:00
ng_device.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_echo.c - Return error, if there was one. 2005-04-15 10:14:00 +00:00
ng_echo.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_eiface.c SIOCSIFFLAGS doesn't require an argument in kernel land; instead, flags 2006-09-15 15:53:09 +00:00
ng_eiface.h Added ASCII version of the NGM_EIFACE_GET_IFNAME message, "getifname". 2005-02-03 11:52:42 +00:00
ng_etf.c Remove ng_connect_t where it is unused. Probably it remained from ng_source.c. 2005-03-14 20:49:48 +00:00
ng_etf.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_ether.c Turn off by default "feature" that overwrites MAC address 2006-08-04 13:36:27 +00:00
ng_ether.h Add new netgraph control message NGM_ETHER_DETACH, which actually 2005-02-14 12:01:09 +00:00
ng_fec.c Fix input byte counting. Now the sum of the ipackets/ibytes counters 2006-09-15 20:17:45 +00:00
ng_fec.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_frame_relay.c Initialize variable. 2006-01-14 21:49:31 +00:00
ng_frame_relay.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_gif_demux.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_gif_demux.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_gif.c Stop embedding struct ifnet at the top of driver softcs. Instead the 2005-06-10 16:49:24 +00:00
ng_gif.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_hole.c Fix memory leak. 2005-12-09 07:09:44 +00:00
ng_hole.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_hub.c Having moved metadata usage to mbuf tags, remove code that supports 2004-06-26 22:24:16 +00:00
ng_hub.h
ng_iface.c add missed calls to bpf_peers_present 2006-06-02 23:14:40 +00:00
ng_iface.h Bump cookie value to reflect change in NGM_IFACE_GET_IFNAME semantics. 2005-02-13 16:36:41 +00:00
ng_ip_input.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_ip_input.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_ipfw.c Unbreak this. 2006-02-14 15:22:24 +00:00
ng_ipfw.h Remove unused now field. 2006-02-17 09:42:49 +00:00
ng_ksocket.c soreceive_generic(), and sopoll_generic(). Add new functions sosend(), 2006-07-24 15:20:08 +00:00
ng_ksocket.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_l2tp.c Use the ISO standard function variable vs. a GCC'ism. 2005-08-10 06:25:41 +00:00
ng_l2tp.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_lmi.c Remove dead code. 2006-01-14 14:17:27 +00:00
ng_lmi.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_message.h In the splnet(9) times netgraph(4) was synchronous and if a message 2006-01-12 19:14:40 +00:00
ng_mppc.c In preparation for making the modules actually use opt_*.h files 2005-10-14 23:17:45 +00:00
ng_mppc.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_nat.c - After LibAlias processing check for TCP packet with th_x2 field 2005-06-27 07:39:13 +00:00
ng_nat.h ng_nat - a netgraph(4) node, which does NAT 2005-05-05 23:41:21 +00:00
ng_one2many.c Fix getting stats from many links with index > 0. 2005-03-11 10:29:38 +00:00
ng_one2many.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_parse.c Fix two accesses to uninitialized variables that a revision 1.27 2006-01-18 16:09:00 +00:00
ng_parse.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
ng_ppp.c Refactor places where ng_package_data() failed. 2005-05-16 19:12:57 +00:00
ng_ppp.h Fix incorrect comment. 2005-02-10 02:43:26 +00:00
ng_pppoe.c Some perfectionizm against last revision. 2006-08-10 11:07:11 +00:00
ng_pppoe.h Fix ng_pppoe(4) after turning off "autosrc feature" on ng_ether(4). 2006-08-09 09:56:58 +00:00
ng_pptpgre.c Rework locking, that I have introduced recently, since it was incorrect: 2005-09-08 14:26:23 +00:00
ng_pptpgre.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_rfc1490.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_rfc1490.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_sample.c Whitespace. 2005-02-06 19:24:59 +00:00
ng_sample.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_socket.c Change semantics of socket close and detach. Add a new protocol switch 2006-07-21 17:11:15 +00:00
ng_socket.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_socketvar.h In the splnet times, netgraph was functional and synchronous. Nowadays, 2005-07-05 17:35:20 +00:00
ng_source.c Simplify ng_source_send() removing temporary queue and merging two 2006-01-23 10:28:04 +00:00
ng_source.h Implement an upper limit for packets per second sent by node. 2005-12-23 19:14:38 +00:00
ng_split.c Plug item leak in case when not all hooks are connected. 2005-08-29 13:47:08 +00:00
ng_split.h Make the cookie constant name canonical. 2005-10-25 20:56:12 +00:00
ng_sppp.c Fix module from panic. 2006-01-29 22:06:51 +00:00
ng_sppp.h Parse "getifname" using the standard parse string type. 2005-02-03 13:03:31 +00:00
ng_tag.c A netgraph node that can do different manipulations with 2006-06-27 12:45:28 +00:00
ng_tag.h A netgraph node that can do different manipulations with 2006-06-27 12:45:28 +00:00
ng_tcpmss.c Free private data when deleting hook. 2006-03-15 15:41:36 +00:00
ng_tcpmss.h Add ng_tcpmss node, which alters MSS options of TCP packets. Useful to 2005-06-10 08:02:34 +00:00
ng_tee.c Update statistics only in case if delivery was successfull. 2005-06-07 12:22:13 +00:00
ng_tee.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_tty.c Use new (inline) functions for calls into driver. 2005-10-16 20:44:18 +00:00
ng_tty.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_UI.c /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_UI.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_vjc.c Use __LP64__ to check for the 64-bit pointer type, and fix -Wundef. 2005-12-04 00:25:03 +00:00
ng_vjc.h /* -> /*- for license, minor formatting changes 2005-01-07 01:45:51 +00:00
ng_vlan.c Move ethernet VLAN tags from mtags to its own mbuf packet header field 2006-09-17 13:33:30 +00:00
ng_vlan.h Use variable-sized arrays where appropriate. 2005-10-28 14:41:28 +00:00
NOTES