2005-01-07 01:45:51 +00:00
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/*-
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1998-03-18 01:40:12 +00:00
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* Copyright 1998 Massachusetts Institute of Technology
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*
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* Permission to use, copy, modify, and distribute this software and
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* its documentation for any purpose and without fee is hereby
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* granted, provided that both the above copyright notice and this
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* permission notice appear in all copies, that both the above
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* copyright notice and this permission notice appear in all
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* supporting documentation, and that the name of M.I.T. not be used
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* in advertising or publicity pertaining to distribution of the
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* software without specific, written prior permission. M.I.T. makes
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* no representations about the suitability of this software for any
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* purpose. It is provided "as is" without express or implied
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* warranty.
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*
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* THIS SOFTWARE IS PROVIDED BY M.I.T. ``AS IS''. M.I.T. DISCLAIMS
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* ALL EXPRESS OR IMPLIED WARRANTIES WITH REGARD TO THIS SOFTWARE,
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* INCLUDING, BUT NOT LIMITED TO, THE IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE. IN NO EVENT
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* SHALL M.I.T. BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
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* USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
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* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
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* OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
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* OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
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* SUCH DAMAGE.
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*
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1999-08-28 01:08:13 +00:00
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* $FreeBSD$
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1998-03-18 01:40:12 +00:00
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*/
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#ifndef _NET_IF_VLAN_VAR_H_
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#define _NET_IF_VLAN_VAR_H_ 1
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2021-07-22 08:35:08 +00:00
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#include <sys/mbuf.h>
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2007-02-28 22:05:30 +00:00
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/* Set the VLAN ID in an mbuf packet header non-destructively. */
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#define EVL_APPLY_VLID(m, vlid) \
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do { \
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if ((m)->m_flags & M_VLANTAG) { \
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(m)->m_pkthdr.ether_vtag &= EVL_VLID_MASK; \
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(m)->m_pkthdr.ether_vtag |= (vlid); \
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} else { \
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(m)->m_pkthdr.ether_vtag = (vlid); \
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(m)->m_flags |= M_VLANTAG; \
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} \
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} while (0)
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/* Set the priority ID in an mbuf packet header non-destructively. */
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#define EVL_APPLY_PRI(m, pri) \
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do { \
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if ((m)->m_flags & M_VLANTAG) { \
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uint16_t __vlantag = (m)->m_pkthdr.ether_vtag; \
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(m)->m_pkthdr.ether_vtag |= EVL_MAKETAG( \
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EVL_VLANOFTAG(__vlantag), (pri), \
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EVL_CFIOFTAG(__vlantag)); \
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} else { \
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(m)->m_pkthdr.ether_vtag = \
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EVL_MAKETAG(0, (pri), 0); \
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(m)->m_flags |= M_VLANTAG; \
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} \
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} while (0)
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1998-03-18 01:40:12 +00:00
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/* sysctl(3) tags, for compatibility purposes */
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#define VLANCTL_PROTO 1
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#define VLANCTL_MAX 2
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/*
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* Configuration structure for SIOCSETVLAN and SIOCGETVLAN ioctls.
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*/
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struct vlanreq {
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char vlr_parent[IFNAMSIZ];
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u_short vlr_tag;
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2020-10-21 21:28:20 +00:00
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u_short vlr_proto;
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1998-03-18 01:40:12 +00:00
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};
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#define SIOCSETVLAN SIOCSIFGENERIC
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#define SIOCGETVLAN SIOCGIFGENERIC
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2018-03-27 15:29:32 +00:00
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#define SIOCGVLANPCP SIOCGLANPCP /* Get VLAN PCP */
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#define SIOCSVLANPCP SIOCSLANPCP /* Set VLAN PCP */
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Add support to priority code point (PCP) that is an 3-bit field
which refers to IEEE 802.1p class of service and maps to the frame
priority level.
Values in order of priority are: 1 (Background (lowest)),
0 (Best effort (default)), 2 (Excellent effort),
3 (Critical applications), 4 (Video, < 100ms latency),
5 (Video, < 10ms latency), 6 (Internetwork control) and
7 (Network control (highest)).
Example of usage:
root# ifconfig em0.1 create
root# ifconfig em0.1 vlanpcp 3
Note:
The review D801 includes the pf(4) part, but as discussed with kristof,
we won't commit the pf(4) bits for now.
The credits of the original code is from rwatson.
Differential Revision: https://reviews.freebsd.org/D801
Reviewed by: gnn, adrian, loos
Discussed with: rwatson, glebius, kristof
Tested by: many including Matthew Grooms <mgrooms__shrew.net>
Obtained from: pfSense
Relnotes: Yes
2016-06-06 09:51:58 +00:00
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2002-11-14 23:43:16 +00:00
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#ifdef _KERNEL
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/*
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* Drivers that are capable of adding and removing the VLAN header
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* in hardware indicate they support this by marking IFCAP_VLAN_HWTAGGING
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2004-01-18 19:29:04 +00:00
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* in if_capabilities. Drivers for hardware that is capable
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2002-11-14 23:43:16 +00:00
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* of handling larger MTU's that may include a software-appended
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2004-01-18 19:29:04 +00:00
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* VLAN header w/o lowering the normal MTU should mark IFCAP_VLAN_MTU
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* in if_capabilities; this notifies the VLAN code it can leave the
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2002-11-14 23:43:16 +00:00
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* MTU on the vlan interface at the normal setting.
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*/
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/*
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2006-09-17 13:33:30 +00:00
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* VLAN tags are stored in host byte order. Byte swapping may be
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* necessary.
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2002-11-14 23:43:16 +00:00
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*
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2006-09-17 13:33:30 +00:00
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* Drivers that support hardware VLAN tag stripping fill in the
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* received VLAN tag (containing both vlan and priority information)
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* into the ether_vtag mbuf packet header field:
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*
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2012-01-12 18:39:37 +00:00
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* m->m_pkthdr.ether_vtag = vtag; // ntohs()?
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2006-09-17 13:33:30 +00:00
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* m->m_flags |= M_VLANTAG;
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*
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* to mark the packet m with the specified VLAN tag.
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2002-11-14 23:43:16 +00:00
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*
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2006-09-17 13:33:30 +00:00
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* On output the driver should check the mbuf for the M_VLANTAG
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* flag to see if a VLAN tag is present and valid:
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2002-11-14 23:43:16 +00:00
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*
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2006-09-17 13:33:30 +00:00
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* if (m->m_flags & M_VLANTAG) {
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* ... = m->m_pkthdr.ether_vtag; // htons()?
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2002-11-14 23:43:16 +00:00
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* ... pass tag to hardware ...
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* }
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*
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* Note that a driver must indicate it supports hardware VLAN
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2006-09-17 13:33:30 +00:00
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* stripping/insertion by marking IFCAP_VLAN_HWTAGGING in
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* if_capabilities.
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2005-08-31 11:36:50 +00:00
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*/
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Merge the //depot/user/yar/vlan branch into CVS. It contains some collective
work by yar, thompsa and myself. The checksum offloading part also involves
work done by Mihail Balikov.
The most important changes:
o Instead of global linked list of all vlan softc use a per-trunk
hash. The size of hash is dynamically adjusted, depending on
number of entries. This changes struct ifnet, replacing counter
of vlans with a pointer to trunk structure. This change is an
improvement for setups with big number of VLANs, several interfaces
and several CPUs. It is a small regression for a setup with a single
VLAN interface.
An alternative to dynamic hash is a per-trunk static array with
4096 entries, which is a compile time option - VLAN_ARRAY. In my
experiments the array is not an improvement, probably because such
a big trunk structure doesn't fit into CPU cache.
o Introduce an UMA zone for VLAN tags. Since drivers depend on it,
the zone is declared in kern_mbuf.c, not in optional vlan(4) driver.
This change is a big improvement for any setup utilizing vlan(4).
o Use rwlock(9) instead of mutex(9) for locking. We are the first
ones to do this! :)
o Some drivers can do hardware VLAN tagging + hardware checksum
offloading. Add an infrastructure for this. Whenever vlan(4) is
attached to a parent or parent configuration is changed, the flags
on vlan(4) interface are updated.
In collaboration with: yar, thompsa
In collaboration with: Mihail Balikov <mihail.balikov interbgc.com>
2006-01-30 13:45:15 +00:00
|
|
|
|
Add support to priority code point (PCP) that is an 3-bit field
which refers to IEEE 802.1p class of service and maps to the frame
priority level.
Values in order of priority are: 1 (Background (lowest)),
0 (Best effort (default)), 2 (Excellent effort),
3 (Critical applications), 4 (Video, < 100ms latency),
5 (Video, < 10ms latency), 6 (Internetwork control) and
7 (Network control (highest)).
Example of usage:
root# ifconfig em0.1 create
root# ifconfig em0.1 vlanpcp 3
Note:
The review D801 includes the pf(4) part, but as discussed with kristof,
we won't commit the pf(4) bits for now.
The credits of the original code is from rwatson.
Differential Revision: https://reviews.freebsd.org/D801
Reviewed by: gnn, adrian, loos
Discussed with: rwatson, glebius, kristof
Tested by: many including Matthew Grooms <mgrooms__shrew.net>
Obtained from: pfSense
Relnotes: Yes
2016-06-06 09:51:58 +00:00
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/*
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* The 802.1q code may also tag mbufs with the PCP (priority) field for use in
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* other layers of the stack, in which case an m_tag will be used. This is
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* semantically quite different from use of the ether_vtag field, which is
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* defined only between the device driver and VLAN layer.
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*/
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#define MTAG_8021Q 1326104895
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#define MTAG_8021Q_PCP_IN 0 /* Input priority. */
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#define MTAG_8021Q_PCP_OUT 1 /* Output priority. */
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2021-07-22 08:35:08 +00:00
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#define VLAN_PCP_MAX 7
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2020-10-21 21:28:20 +00:00
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/*
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* 802.1q full tag. Proto and vid are stored in host byte order.
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*/
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struct ether_8021q_tag {
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uint16_t proto;
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uint16_t vid;
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uint8_t pcp;
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};
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Merge the //depot/user/yar/vlan branch into CVS. It contains some collective
work by yar, thompsa and myself. The checksum offloading part also involves
work done by Mihail Balikov.
The most important changes:
o Instead of global linked list of all vlan softc use a per-trunk
hash. The size of hash is dynamically adjusted, depending on
number of entries. This changes struct ifnet, replacing counter
of vlans with a pointer to trunk structure. This change is an
improvement for setups with big number of VLANs, several interfaces
and several CPUs. It is a small regression for a setup with a single
VLAN interface.
An alternative to dynamic hash is a per-trunk static array with
4096 entries, which is a compile time option - VLAN_ARRAY. In my
experiments the array is not an improvement, probably because such
a big trunk structure doesn't fit into CPU cache.
o Introduce an UMA zone for VLAN tags. Since drivers depend on it,
the zone is declared in kern_mbuf.c, not in optional vlan(4) driver.
This change is a big improvement for any setup utilizing vlan(4).
o Use rwlock(9) instead of mutex(9) for locking. We are the first
ones to do this! :)
o Some drivers can do hardware VLAN tagging + hardware checksum
offloading. Add an infrastructure for this. Whenever vlan(4) is
attached to a parent or parent configuration is changed, the flags
on vlan(4) interface are updated.
In collaboration with: yar, thompsa
In collaboration with: Mihail Balikov <mihail.balikov interbgc.com>
2006-01-30 13:45:15 +00:00
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#define VLAN_CAPABILITIES(_ifp) do { \
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2023-01-24 21:12:08 +00:00
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if (if_getvlantrunk(_ifp) != NULL) \
|
Merge the //depot/user/yar/vlan branch into CVS. It contains some collective
work by yar, thompsa and myself. The checksum offloading part also involves
work done by Mihail Balikov.
The most important changes:
o Instead of global linked list of all vlan softc use a per-trunk
hash. The size of hash is dynamically adjusted, depending on
number of entries. This changes struct ifnet, replacing counter
of vlans with a pointer to trunk structure. This change is an
improvement for setups with big number of VLANs, several interfaces
and several CPUs. It is a small regression for a setup with a single
VLAN interface.
An alternative to dynamic hash is a per-trunk static array with
4096 entries, which is a compile time option - VLAN_ARRAY. In my
experiments the array is not an improvement, probably because such
a big trunk structure doesn't fit into CPU cache.
o Introduce an UMA zone for VLAN tags. Since drivers depend on it,
the zone is declared in kern_mbuf.c, not in optional vlan(4) driver.
This change is a big improvement for any setup utilizing vlan(4).
o Use rwlock(9) instead of mutex(9) for locking. We are the first
ones to do this! :)
o Some drivers can do hardware VLAN tagging + hardware checksum
offloading. Add an infrastructure for this. Whenever vlan(4) is
attached to a parent or parent configuration is changed, the flags
on vlan(4) interface are updated.
In collaboration with: yar, thompsa
In collaboration with: Mihail Balikov <mihail.balikov interbgc.com>
2006-01-30 13:45:15 +00:00
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(*vlan_trunk_cap_p)(_ifp); \
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} while (0)
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2011-03-21 09:40:01 +00:00
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#define VLAN_TRUNKDEV(_ifp) \
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2023-01-24 21:17:55 +00:00
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(if_gettype(_ifp) == IFT_L2VLAN ? (*vlan_trunkdev_p)((_ifp)) : NULL)
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2012-01-12 18:39:37 +00:00
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#define VLAN_TAG(_ifp, _vid) \
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2023-01-24 21:17:55 +00:00
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(if_gettype(_ifp) == IFT_L2VLAN ? (*vlan_tag_p)((_ifp), (_vid)) : EINVAL)
|
2018-08-16 23:46:38 +00:00
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#define VLAN_PCP(_ifp, _pcp) \
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2023-01-24 21:17:55 +00:00
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(if_gettype(_ifp) == IFT_L2VLAN ? (*vlan_pcp_p)((_ifp), (_pcp)) : EINVAL)
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2011-03-21 09:40:01 +00:00
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#define VLAN_COOKIE(_ifp) \
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2023-01-24 21:17:55 +00:00
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(if_gettype(_ifp) == IFT_L2VLAN ? (*vlan_cookie_p)((_ifp)) : NULL)
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2011-03-21 09:40:01 +00:00
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#define VLAN_SETCOOKIE(_ifp, _cookie) \
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2023-01-24 21:17:55 +00:00
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(if_gettype(_ifp) == IFT_L2VLAN ? \
|
2017-11-30 11:35:22 +00:00
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(*vlan_setcookie_p)((_ifp), (_cookie)) : EINVAL)
|
2012-01-12 18:39:37 +00:00
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#define VLAN_DEVAT(_ifp, _vid) \
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2023-01-24 21:12:08 +00:00
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(if_getvlantrunk(_ifp) != NULL ? (*vlan_devat_p)((_ifp), (_vid)) : NULL)
|
2011-03-21 09:40:01 +00:00
|
|
|
|
Merge the //depot/user/yar/vlan branch into CVS. It contains some collective
work by yar, thompsa and myself. The checksum offloading part also involves
work done by Mihail Balikov.
The most important changes:
o Instead of global linked list of all vlan softc use a per-trunk
hash. The size of hash is dynamically adjusted, depending on
number of entries. This changes struct ifnet, replacing counter
of vlans with a pointer to trunk structure. This change is an
improvement for setups with big number of VLANs, several interfaces
and several CPUs. It is a small regression for a setup with a single
VLAN interface.
An alternative to dynamic hash is a per-trunk static array with
4096 entries, which is a compile time option - VLAN_ARRAY. In my
experiments the array is not an improvement, probably because such
a big trunk structure doesn't fit into CPU cache.
o Introduce an UMA zone for VLAN tags. Since drivers depend on it,
the zone is declared in kern_mbuf.c, not in optional vlan(4) driver.
This change is a big improvement for any setup utilizing vlan(4).
o Use rwlock(9) instead of mutex(9) for locking. We are the first
ones to do this! :)
o Some drivers can do hardware VLAN tagging + hardware checksum
offloading. Add an infrastructure for this. Whenever vlan(4) is
attached to a parent or parent configuration is changed, the flags
on vlan(4) interface are updated.
In collaboration with: yar, thompsa
In collaboration with: Mihail Balikov <mihail.balikov interbgc.com>
2006-01-30 13:45:15 +00:00
|
|
|
extern void (*vlan_trunk_cap_p)(struct ifnet *);
|
2011-03-21 09:40:01 +00:00
|
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|
extern struct ifnet *(*vlan_trunkdev_p)(struct ifnet *);
|
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extern struct ifnet *(*vlan_devat_p)(struct ifnet *, uint16_t);
|
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|
|
extern int (*vlan_tag_p)(struct ifnet *, uint16_t *);
|
2018-08-16 23:46:38 +00:00
|
|
|
extern int (*vlan_pcp_p)(struct ifnet *, uint16_t *);
|
2011-03-21 09:40:01 +00:00
|
|
|
extern int (*vlan_setcookie_p)(struct ifnet *, void *);
|
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|
extern void *(*vlan_cookie_p)(struct ifnet *);
|
|
|
|
|
Extract eventfilter declarations to sys/_eventfilter.h
This allows replacing "sys/eventfilter.h" includes with "sys/_eventfilter.h"
in other header files (e.g., sys/{bus,conf,cpu}.h) and reduces header
pollution substantially.
EVENTHANDLER_DECLARE and EVENTHANDLER_LIST_DECLAREs were moved out of .c
files into appropriate headers (e.g., sys/proc.h, powernv/opal.h).
As a side effect of reduced header pollution, many .c files and headers no
longer contain needed definitions. The remainder of the patch addresses
adding appropriate includes to fix those files.
LOCK_DEBUG and LOCK_FILE_LINE_ARG are moved to sys/_lock.h, as required by
sys/mutex.h since r326106 (but silently protected by header pollution prior
to this change).
No functional change (intended). Of course, any out of tree modules that
relied on header pollution for sys/eventhandler.h, sys/lock.h, or
sys/mutex.h inclusion need to be fixed. __FreeBSD_version has been bumped.
2019-05-20 00:38:23 +00:00
|
|
|
#include <sys/_eventhandler.h>
|
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|
|
2013-10-28 07:45:03 +00:00
|
|
|
/* VLAN state change events */
|
|
|
|
typedef void (*vlan_config_fn)(void *, struct ifnet *, uint16_t);
|
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|
|
typedef void (*vlan_unconfig_fn)(void *, struct ifnet *, uint16_t);
|
|
|
|
EVENTHANDLER_DECLARE(vlan_config, vlan_config_fn);
|
|
|
|
EVENTHANDLER_DECLARE(vlan_unconfig, vlan_unconfig_fn);
|
|
|
|
|
2021-07-22 08:35:08 +00:00
|
|
|
static inline int
|
|
|
|
vlan_set_pcp(struct mbuf *m, uint8_t prio)
|
|
|
|
{
|
|
|
|
struct m_tag *mtag;
|
|
|
|
|
|
|
|
KASSERT(prio <= VLAN_PCP_MAX,
|
|
|
|
("%s with invalid pcp", __func__));
|
|
|
|
|
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|
|
mtag = m_tag_locate(m, MTAG_8021Q, MTAG_8021Q_PCP_OUT, NULL);
|
|
|
|
if (mtag == NULL) {
|
|
|
|
mtag = m_tag_alloc(MTAG_8021Q, MTAG_8021Q_PCP_OUT,
|
|
|
|
sizeof(uint8_t), M_NOWAIT);
|
|
|
|
if (mtag == NULL)
|
|
|
|
return (ENOMEM);
|
|
|
|
m_tag_prepend(m, mtag);
|
|
|
|
}
|
|
|
|
|
|
|
|
*(uint8_t *)(mtag + 1) = prio;
|
|
|
|
|
|
|
|
return (0);
|
|
|
|
}
|
|
|
|
|
2002-11-14 23:43:16 +00:00
|
|
|
#endif /* _KERNEL */
|
|
|
|
|
1998-03-18 01:40:12 +00:00
|
|
|
#endif /* _NET_IF_VLAN_VAR_H_ */
|