freebsd-dev/sys/modules/if_vlan/Makefile

# $FreeBSD$

.PATH: ${SRCTOP}/sys/net

KMOD=	if_vlan
SRCS=	if_vlan.c
SRCS+=	opt_inet.h opt_vlan.h opt_ratelimit.h

.include <bsd.kmod.mk>
Make vlan(4) loadable, unloadable, and clonable. As a side effect, interfaces must now always enable VLAN support. Reviewed by: jlemon MFC after: 3 weeks 2001-09-05 21:10:28 +00:00			`# $FreeBSD$`

sys/modules: normalize .CURDIR-relative paths to SRCTOP This simplifies make output/logic Tested with: `cd sys/modules; make ALL_MODULES=` on amd64 MFC after: 1 month Sponsored by: Dell EMC Isilon 2017-03-04 10:10:17 +00:00			`.PATH: ${SRCTOP}/sys/net`
Make vlan(4) loadable, unloadable, and clonable. As a side effect, interfaces must now always enable VLAN support. Reviewed by: jlemon MFC after: 3 weeks 2001-09-05 21:10:28 +00:00
			`KMOD= if_vlan`
Fix standalone module build. Reported by: Boris Samorodov 2006-02-17 10:52:59 +00:00			`SRCS= if_vlan.c`
Implement kernel support for hardware rate limited sockets. - Add RATELIMIT kernel configuration keyword which must be set to enable the new functionality. - Add support for hardware driven, Receive Side Scaling, RSS aware, rate limited sendqueues and expose the functionality through the already established SO_MAX_PACING_RATE setsockopt(). The API support rates in the range from 1 to 4Gbytes/s which are suitable for regular TCP and UDP streams. The setsockopt(2) manual page has been updated. - Add rate limit function callback API to "struct ifnet" which supports the following operations: if_snd_tag_alloc(), if_snd_tag_modify(), if_snd_tag_query() and if_snd_tag_free(). - Add support to ifconfig to view, set and clear the IFCAP_TXRTLMT flag, which tells if a network driver supports rate limiting or not. - This patch also adds support for rate limiting through VLAN and LAGG intermediate network devices. - How rate limiting works: 1) The userspace application calls setsockopt() after accepting or making a new connection to set the rate which is then stored in the socket structure in the kernel. Later on when packets are transmitted a check is made in the transmit path for rate changes. A rate change implies a non-blocking ifp->if_snd_tag_alloc() call will be made to the destination network interface, which then sets up a custom sendqueue with the given rate limitation parameter. A "struct m_snd_tag" pointer is returned which serves as a "snd_tag" hint in the m_pkthdr for the subsequently transmitted mbufs. 2) When the network driver sees the "m->m_pkthdr.snd_tag" different from NULL, it will move the packets into a designated rate limited sendqueue given by the snd_tag pointer. It is up to the individual drivers how the rate limited traffic will be rate limited. 3) Route changes are detected by the NIC drivers in the ifp->if_transmit() routine when the ifnet pointer in the incoming snd_tag mismatches the one of the network interface. The network adapter frees the mbuf and returns EAGAIN which causes the ip_output() to release and clear the send tag. Upon next ip_output() a new "snd_tag" will be tried allocated. 4) When the PCB is detached the custom sendqueue will be released by a non-blocking ifp->if_snd_tag_free() call to the currently bound network interface. Reviewed by: wblock (manpages), adrian, gallatin, scottl (network) Differential Revision: https://reviews.freebsd.org/D3687 Sponsored by: Mellanox Technologies MFC after: 3 months 2017-01-18 13:31:17 +00:00			`SRCS+= opt_inet.h opt_vlan.h opt_ratelimit.h`
Make vlan(4) loadable, unloadable, and clonable. As a side effect, interfaces must now always enable VLAN support. Reviewed by: jlemon MFC after: 3 weeks 2001-09-05 21:10:28 +00:00
			`.include <bsd.kmod.mk>`