c138424148
When the lagg is being destroyed it is not necessary update the lladdr of all the lagg members every time we update the primary interface. Reviewed by: scottl Obtained from: pfSense MFC after: 1 week Sponsored by: Rubicon Communications, LLC ("Netgate") Differential Revision: https://reviews.freebsd.org/D31586
2642 lines
63 KiB
C
2642 lines
63 KiB
C
/* $OpenBSD: if_trunk.c,v 1.30 2007/01/31 06:20:19 reyk Exp $ */
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/*
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* Copyright (c) 2005, 2006 Reyk Floeter <reyk@openbsd.org>
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* Copyright (c) 2007 Andrew Thompson <thompsa@FreeBSD.org>
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* Copyright (c) 2014, 2016 Marcelo Araujo <araujo@FreeBSD.org>
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*
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* Permission to use, copy, modify, and distribute this software for any
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* purpose with or without fee is hereby granted, provided that the above
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* copyright notice and this permission notice appear in all copies.
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*
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* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES
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* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF
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* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR
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* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES
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* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN
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* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF
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* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE.
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*/
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#include <sys/cdefs.h>
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__FBSDID("$FreeBSD$");
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#include "opt_inet.h"
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#include "opt_inet6.h"
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#include "opt_kern_tls.h"
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#include "opt_ratelimit.h"
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#include <sys/param.h>
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#include <sys/kernel.h>
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#include <sys/malloc.h>
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#include <sys/mbuf.h>
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#include <sys/queue.h>
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#include <sys/socket.h>
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <sys/module.h>
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#include <sys/priv.h>
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#include <sys/systm.h>
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#include <sys/proc.h>
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#include <sys/lock.h>
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#include <sys/rmlock.h>
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#include <sys/sx.h>
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#include <sys/taskqueue.h>
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#include <sys/eventhandler.h>
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#include <net/ethernet.h>
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#include <net/if.h>
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#include <net/if_clone.h>
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#include <net/if_arp.h>
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#include <net/if_dl.h>
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#include <net/if_media.h>
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#include <net/if_types.h>
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#include <net/if_var.h>
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#include <net/bpf.h>
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#include <net/route.h>
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#include <net/vnet.h>
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#include <net/infiniband.h>
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#if defined(INET) || defined(INET6)
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#include <netinet/in.h>
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#include <netinet/ip.h>
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#endif
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#ifdef INET
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#include <netinet/in_systm.h>
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#include <netinet/if_ether.h>
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#endif
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#ifdef INET6
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#include <netinet/ip6.h>
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#include <netinet6/in6_var.h>
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#include <netinet6/in6_ifattach.h>
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#endif
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#include <net/if_vlan_var.h>
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#include <net/if_lagg.h>
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#include <net/ieee8023ad_lacp.h>
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#ifdef INET6
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/*
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* XXX: declare here to avoid to include many inet6 related files..
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* should be more generalized?
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*/
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extern void nd6_setmtu(struct ifnet *);
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#endif
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#define LAGG_SX_INIT(_sc) sx_init(&(_sc)->sc_sx, "if_lagg sx")
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#define LAGG_SX_DESTROY(_sc) sx_destroy(&(_sc)->sc_sx)
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#define LAGG_XLOCK(_sc) sx_xlock(&(_sc)->sc_sx)
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#define LAGG_XUNLOCK(_sc) sx_xunlock(&(_sc)->sc_sx)
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#define LAGG_SXLOCK_ASSERT(_sc) sx_assert(&(_sc)->sc_sx, SA_LOCKED)
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#define LAGG_XLOCK_ASSERT(_sc) sx_assert(&(_sc)->sc_sx, SA_XLOCKED)
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/* Special flags we should propagate to the lagg ports. */
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static struct {
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int flag;
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int (*func)(struct ifnet *, int);
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} lagg_pflags[] = {
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{IFF_PROMISC, ifpromisc},
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{IFF_ALLMULTI, if_allmulti},
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{0, NULL}
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};
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struct lagg_snd_tag {
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struct m_snd_tag com;
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struct m_snd_tag *tag;
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};
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VNET_DEFINE(SLIST_HEAD(__trhead, lagg_softc), lagg_list); /* list of laggs */
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#define V_lagg_list VNET(lagg_list)
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VNET_DEFINE_STATIC(struct mtx, lagg_list_mtx);
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#define V_lagg_list_mtx VNET(lagg_list_mtx)
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#define LAGG_LIST_LOCK_INIT(x) mtx_init(&V_lagg_list_mtx, \
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"if_lagg list", NULL, MTX_DEF)
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#define LAGG_LIST_LOCK_DESTROY(x) mtx_destroy(&V_lagg_list_mtx)
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#define LAGG_LIST_LOCK(x) mtx_lock(&V_lagg_list_mtx)
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#define LAGG_LIST_UNLOCK(x) mtx_unlock(&V_lagg_list_mtx)
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eventhandler_tag lagg_detach_cookie = NULL;
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static int lagg_clone_create(struct if_clone *, int, caddr_t);
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static void lagg_clone_destroy(struct ifnet *);
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VNET_DEFINE_STATIC(struct if_clone *, lagg_cloner);
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#define V_lagg_cloner VNET(lagg_cloner)
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static const char laggname[] = "lagg";
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static MALLOC_DEFINE(M_LAGG, laggname, "802.3AD Link Aggregation Interface");
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static void lagg_capabilities(struct lagg_softc *);
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static int lagg_port_create(struct lagg_softc *, struct ifnet *);
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static int lagg_port_destroy(struct lagg_port *, int);
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static struct mbuf *lagg_input_ethernet(struct ifnet *, struct mbuf *);
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static struct mbuf *lagg_input_infiniband(struct ifnet *, struct mbuf *);
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static void lagg_linkstate(struct lagg_softc *);
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static void lagg_port_state(struct ifnet *, int);
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static int lagg_port_ioctl(struct ifnet *, u_long, caddr_t);
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static int lagg_port_output(struct ifnet *, struct mbuf *,
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const struct sockaddr *, struct route *);
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static void lagg_port_ifdetach(void *arg __unused, struct ifnet *);
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#ifdef LAGG_PORT_STACKING
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static int lagg_port_checkstacking(struct lagg_softc *);
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#endif
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static void lagg_port2req(struct lagg_port *, struct lagg_reqport *);
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static void lagg_init(void *);
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static void lagg_stop(struct lagg_softc *);
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static int lagg_ioctl(struct ifnet *, u_long, caddr_t);
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#if defined(KERN_TLS) || defined(RATELIMIT)
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static int lagg_snd_tag_alloc(struct ifnet *,
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union if_snd_tag_alloc_params *,
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struct m_snd_tag **);
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static int lagg_snd_tag_modify(struct m_snd_tag *,
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union if_snd_tag_modify_params *);
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static int lagg_snd_tag_query(struct m_snd_tag *,
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union if_snd_tag_query_params *);
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static void lagg_snd_tag_free(struct m_snd_tag *);
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static struct m_snd_tag *lagg_next_snd_tag(struct m_snd_tag *);
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static void lagg_ratelimit_query(struct ifnet *,
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struct if_ratelimit_query_results *);
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#endif
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static int lagg_setmulti(struct lagg_port *);
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static int lagg_clrmulti(struct lagg_port *);
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static int lagg_setcaps(struct lagg_port *, int cap);
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static int lagg_setflag(struct lagg_port *, int, int,
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int (*func)(struct ifnet *, int));
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static int lagg_setflags(struct lagg_port *, int status);
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static uint64_t lagg_get_counter(struct ifnet *ifp, ift_counter cnt);
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static int lagg_transmit_ethernet(struct ifnet *, struct mbuf *);
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static int lagg_transmit_infiniband(struct ifnet *, struct mbuf *);
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static void lagg_qflush(struct ifnet *);
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static int lagg_media_change(struct ifnet *);
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static void lagg_media_status(struct ifnet *, struct ifmediareq *);
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static struct lagg_port *lagg_link_active(struct lagg_softc *,
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struct lagg_port *);
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/* Simple round robin */
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static void lagg_rr_attach(struct lagg_softc *);
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static int lagg_rr_start(struct lagg_softc *, struct mbuf *);
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static struct mbuf *lagg_rr_input(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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/* Active failover */
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static int lagg_fail_start(struct lagg_softc *, struct mbuf *);
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static struct mbuf *lagg_fail_input(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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/* Loadbalancing */
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static void lagg_lb_attach(struct lagg_softc *);
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static void lagg_lb_detach(struct lagg_softc *);
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static int lagg_lb_port_create(struct lagg_port *);
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static void lagg_lb_port_destroy(struct lagg_port *);
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static int lagg_lb_start(struct lagg_softc *, struct mbuf *);
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static struct mbuf *lagg_lb_input(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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static int lagg_lb_porttable(struct lagg_softc *, struct lagg_port *);
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/* Broadcast */
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static int lagg_bcast_start(struct lagg_softc *, struct mbuf *);
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static struct mbuf *lagg_bcast_input(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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/* 802.3ad LACP */
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static void lagg_lacp_attach(struct lagg_softc *);
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static void lagg_lacp_detach(struct lagg_softc *);
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static int lagg_lacp_start(struct lagg_softc *, struct mbuf *);
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static struct mbuf *lagg_lacp_input(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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static void lagg_lacp_lladdr(struct lagg_softc *);
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/* lagg protocol table */
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static const struct lagg_proto {
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lagg_proto pr_num;
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void (*pr_attach)(struct lagg_softc *);
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void (*pr_detach)(struct lagg_softc *);
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int (*pr_start)(struct lagg_softc *, struct mbuf *);
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struct mbuf * (*pr_input)(struct lagg_softc *, struct lagg_port *,
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struct mbuf *);
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int (*pr_addport)(struct lagg_port *);
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void (*pr_delport)(struct lagg_port *);
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void (*pr_linkstate)(struct lagg_port *);
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void (*pr_init)(struct lagg_softc *);
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void (*pr_stop)(struct lagg_softc *);
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void (*pr_lladdr)(struct lagg_softc *);
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void (*pr_request)(struct lagg_softc *, void *);
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void (*pr_portreq)(struct lagg_port *, void *);
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} lagg_protos[] = {
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{
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.pr_num = LAGG_PROTO_NONE
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},
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{
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.pr_num = LAGG_PROTO_ROUNDROBIN,
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.pr_attach = lagg_rr_attach,
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.pr_start = lagg_rr_start,
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.pr_input = lagg_rr_input,
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},
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{
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.pr_num = LAGG_PROTO_FAILOVER,
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.pr_start = lagg_fail_start,
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.pr_input = lagg_fail_input,
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},
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{
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.pr_num = LAGG_PROTO_LOADBALANCE,
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.pr_attach = lagg_lb_attach,
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.pr_detach = lagg_lb_detach,
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.pr_start = lagg_lb_start,
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.pr_input = lagg_lb_input,
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.pr_addport = lagg_lb_port_create,
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.pr_delport = lagg_lb_port_destroy,
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},
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{
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.pr_num = LAGG_PROTO_LACP,
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.pr_attach = lagg_lacp_attach,
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.pr_detach = lagg_lacp_detach,
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.pr_start = lagg_lacp_start,
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.pr_input = lagg_lacp_input,
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.pr_addport = lacp_port_create,
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.pr_delport = lacp_port_destroy,
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.pr_linkstate = lacp_linkstate,
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.pr_init = lacp_init,
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.pr_stop = lacp_stop,
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.pr_lladdr = lagg_lacp_lladdr,
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.pr_request = lacp_req,
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.pr_portreq = lacp_portreq,
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},
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{
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.pr_num = LAGG_PROTO_BROADCAST,
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.pr_start = lagg_bcast_start,
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.pr_input = lagg_bcast_input,
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},
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};
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SYSCTL_DECL(_net_link);
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SYSCTL_NODE(_net_link, OID_AUTO, lagg, CTLFLAG_RW | CTLFLAG_MPSAFE, 0,
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"Link Aggregation");
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/* Allow input on any failover links */
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VNET_DEFINE_STATIC(int, lagg_failover_rx_all);
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#define V_lagg_failover_rx_all VNET(lagg_failover_rx_all)
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SYSCTL_INT(_net_link_lagg, OID_AUTO, failover_rx_all, CTLFLAG_RW | CTLFLAG_VNET,
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&VNET_NAME(lagg_failover_rx_all), 0,
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"Accept input from any interface in a failover lagg");
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/* Default value for using flowid */
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VNET_DEFINE_STATIC(int, def_use_flowid) = 0;
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#define V_def_use_flowid VNET(def_use_flowid)
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SYSCTL_INT(_net_link_lagg, OID_AUTO, default_use_flowid, CTLFLAG_RWTUN,
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&VNET_NAME(def_use_flowid), 0,
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"Default setting for using flow id for load sharing");
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/* Default value for using numa */
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VNET_DEFINE_STATIC(int, def_use_numa) = 1;
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#define V_def_use_numa VNET(def_use_numa)
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SYSCTL_INT(_net_link_lagg, OID_AUTO, default_use_numa, CTLFLAG_RWTUN,
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&VNET_NAME(def_use_numa), 0,
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"Use numa to steer flows");
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/* Default value for flowid shift */
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VNET_DEFINE_STATIC(int, def_flowid_shift) = 16;
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#define V_def_flowid_shift VNET(def_flowid_shift)
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SYSCTL_INT(_net_link_lagg, OID_AUTO, default_flowid_shift, CTLFLAG_RWTUN,
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&VNET_NAME(def_flowid_shift), 0,
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"Default setting for flowid shift for load sharing");
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static void
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vnet_lagg_init(const void *unused __unused)
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{
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LAGG_LIST_LOCK_INIT();
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SLIST_INIT(&V_lagg_list);
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V_lagg_cloner = if_clone_simple(laggname, lagg_clone_create,
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lagg_clone_destroy, 0);
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}
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VNET_SYSINIT(vnet_lagg_init, SI_SUB_PROTO_IFATTACHDOMAIN, SI_ORDER_ANY,
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vnet_lagg_init, NULL);
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static void
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vnet_lagg_uninit(const void *unused __unused)
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{
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if_clone_detach(V_lagg_cloner);
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LAGG_LIST_LOCK_DESTROY();
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}
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VNET_SYSUNINIT(vnet_lagg_uninit, SI_SUB_INIT_IF, SI_ORDER_ANY,
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vnet_lagg_uninit, NULL);
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static int
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lagg_modevent(module_t mod, int type, void *data)
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{
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switch (type) {
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case MOD_LOAD:
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lagg_input_ethernet_p = lagg_input_ethernet;
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lagg_input_infiniband_p = lagg_input_infiniband;
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lagg_linkstate_p = lagg_port_state;
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lagg_detach_cookie = EVENTHANDLER_REGISTER(
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ifnet_departure_event, lagg_port_ifdetach, NULL,
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EVENTHANDLER_PRI_ANY);
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break;
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case MOD_UNLOAD:
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EVENTHANDLER_DEREGISTER(ifnet_departure_event,
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lagg_detach_cookie);
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lagg_input_ethernet_p = NULL;
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lagg_input_infiniband_p = NULL;
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lagg_linkstate_p = NULL;
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break;
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default:
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return (EOPNOTSUPP);
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}
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return (0);
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}
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static moduledata_t lagg_mod = {
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"if_lagg",
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lagg_modevent,
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0
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};
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DECLARE_MODULE(if_lagg, lagg_mod, SI_SUB_PSEUDO, SI_ORDER_ANY);
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MODULE_VERSION(if_lagg, 1);
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MODULE_DEPEND(if_lagg, if_infiniband, 1, 1, 1);
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static void
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lagg_proto_attach(struct lagg_softc *sc, lagg_proto pr)
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{
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LAGG_XLOCK_ASSERT(sc);
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KASSERT(sc->sc_proto == LAGG_PROTO_NONE, ("%s: sc %p has proto",
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__func__, sc));
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if (sc->sc_ifflags & IFF_DEBUG)
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if_printf(sc->sc_ifp, "using proto %u\n", pr);
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if (lagg_protos[pr].pr_attach != NULL)
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lagg_protos[pr].pr_attach(sc);
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sc->sc_proto = pr;
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}
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static void
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lagg_proto_detach(struct lagg_softc *sc)
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{
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lagg_proto pr;
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LAGG_XLOCK_ASSERT(sc);
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pr = sc->sc_proto;
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sc->sc_proto = LAGG_PROTO_NONE;
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if (lagg_protos[pr].pr_detach != NULL)
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lagg_protos[pr].pr_detach(sc);
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}
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static int
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lagg_proto_start(struct lagg_softc *sc, struct mbuf *m)
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{
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return (lagg_protos[sc->sc_proto].pr_start(sc, m));
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}
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static struct mbuf *
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lagg_proto_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
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{
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return (lagg_protos[sc->sc_proto].pr_input(sc, lp, m));
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}
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static int
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lagg_proto_addport(struct lagg_softc *sc, struct lagg_port *lp)
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{
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if (lagg_protos[sc->sc_proto].pr_addport == NULL)
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return (0);
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else
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return (lagg_protos[sc->sc_proto].pr_addport(lp));
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}
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static void
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lagg_proto_delport(struct lagg_softc *sc, struct lagg_port *lp)
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{
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if (lagg_protos[sc->sc_proto].pr_delport != NULL)
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lagg_protos[sc->sc_proto].pr_delport(lp);
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}
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static void
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lagg_proto_linkstate(struct lagg_softc *sc, struct lagg_port *lp)
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{
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if (lagg_protos[sc->sc_proto].pr_linkstate != NULL)
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lagg_protos[sc->sc_proto].pr_linkstate(lp);
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}
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static void
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lagg_proto_init(struct lagg_softc *sc)
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{
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|
|
if (lagg_protos[sc->sc_proto].pr_init != NULL)
|
|
lagg_protos[sc->sc_proto].pr_init(sc);
|
|
}
|
|
|
|
static void
|
|
lagg_proto_stop(struct lagg_softc *sc)
|
|
{
|
|
|
|
if (lagg_protos[sc->sc_proto].pr_stop != NULL)
|
|
lagg_protos[sc->sc_proto].pr_stop(sc);
|
|
}
|
|
|
|
static void
|
|
lagg_proto_lladdr(struct lagg_softc *sc)
|
|
{
|
|
|
|
if (lagg_protos[sc->sc_proto].pr_lladdr != NULL)
|
|
lagg_protos[sc->sc_proto].pr_lladdr(sc);
|
|
}
|
|
|
|
static void
|
|
lagg_proto_request(struct lagg_softc *sc, void *v)
|
|
{
|
|
|
|
if (lagg_protos[sc->sc_proto].pr_request != NULL)
|
|
lagg_protos[sc->sc_proto].pr_request(sc, v);
|
|
}
|
|
|
|
static void
|
|
lagg_proto_portreq(struct lagg_softc *sc, struct lagg_port *lp, void *v)
|
|
{
|
|
|
|
if (lagg_protos[sc->sc_proto].pr_portreq != NULL)
|
|
lagg_protos[sc->sc_proto].pr_portreq(lp, v);
|
|
}
|
|
|
|
/*
|
|
* This routine is run via an vlan
|
|
* config EVENT
|
|
*/
|
|
static void
|
|
lagg_register_vlan(void *arg, struct ifnet *ifp, u_int16_t vtag)
|
|
{
|
|
struct lagg_softc *sc = ifp->if_softc;
|
|
struct lagg_port *lp;
|
|
|
|
if (ifp->if_softc != arg) /* Not our event */
|
|
return;
|
|
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
EVENTHANDLER_INVOKE(vlan_config, lp->lp_ifp, vtag);
|
|
LAGG_XUNLOCK(sc);
|
|
}
|
|
|
|
/*
|
|
* This routine is run via an vlan
|
|
* unconfig EVENT
|
|
*/
|
|
static void
|
|
lagg_unregister_vlan(void *arg, struct ifnet *ifp, u_int16_t vtag)
|
|
{
|
|
struct lagg_softc *sc = ifp->if_softc;
|
|
struct lagg_port *lp;
|
|
|
|
if (ifp->if_softc != arg) /* Not our event */
|
|
return;
|
|
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
EVENTHANDLER_INVOKE(vlan_unconfig, lp->lp_ifp, vtag);
|
|
LAGG_XUNLOCK(sc);
|
|
}
|
|
|
|
static int
|
|
lagg_clone_create(struct if_clone *ifc, int unit, caddr_t params)
|
|
{
|
|
struct iflaggparam iflp;
|
|
struct lagg_softc *sc;
|
|
struct ifnet *ifp;
|
|
int if_type;
|
|
int error;
|
|
static const uint8_t eaddr[LAGG_ADDR_LEN];
|
|
|
|
if (params != NULL) {
|
|
error = copyin(params, &iflp, sizeof(iflp));
|
|
if (error)
|
|
return (error);
|
|
|
|
switch (iflp.lagg_type) {
|
|
case LAGG_TYPE_ETHERNET:
|
|
if_type = IFT_ETHER;
|
|
break;
|
|
case LAGG_TYPE_INFINIBAND:
|
|
if_type = IFT_INFINIBAND;
|
|
break;
|
|
default:
|
|
return (EINVAL);
|
|
}
|
|
} else {
|
|
if_type = IFT_ETHER;
|
|
}
|
|
|
|
sc = malloc(sizeof(*sc), M_LAGG, M_WAITOK|M_ZERO);
|
|
ifp = sc->sc_ifp = if_alloc(if_type);
|
|
if (ifp == NULL) {
|
|
free(sc, M_LAGG);
|
|
return (ENOSPC);
|
|
}
|
|
LAGG_SX_INIT(sc);
|
|
|
|
mtx_init(&sc->sc_mtx, "lagg-mtx", NULL, MTX_DEF);
|
|
callout_init_mtx(&sc->sc_watchdog, &sc->sc_mtx, 0);
|
|
|
|
LAGG_XLOCK(sc);
|
|
if (V_def_use_flowid)
|
|
sc->sc_opts |= LAGG_OPT_USE_FLOWID;
|
|
if (V_def_use_numa)
|
|
sc->sc_opts |= LAGG_OPT_USE_NUMA;
|
|
sc->flowid_shift = V_def_flowid_shift;
|
|
|
|
/* Hash all layers by default */
|
|
sc->sc_flags = MBUF_HASHFLAG_L2|MBUF_HASHFLAG_L3|MBUF_HASHFLAG_L4;
|
|
|
|
lagg_proto_attach(sc, LAGG_PROTO_DEFAULT);
|
|
|
|
CK_SLIST_INIT(&sc->sc_ports);
|
|
|
|
switch (if_type) {
|
|
case IFT_ETHER:
|
|
/* Initialise pseudo media types */
|
|
ifmedia_init(&sc->sc_media, 0, lagg_media_change,
|
|
lagg_media_status);
|
|
ifmedia_add(&sc->sc_media, IFM_ETHER | IFM_AUTO, 0, NULL);
|
|
ifmedia_set(&sc->sc_media, IFM_ETHER | IFM_AUTO);
|
|
|
|
if_initname(ifp, laggname, unit);
|
|
ifp->if_transmit = lagg_transmit_ethernet;
|
|
break;
|
|
case IFT_INFINIBAND:
|
|
if_initname(ifp, laggname, unit);
|
|
ifp->if_transmit = lagg_transmit_infiniband;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
ifp->if_softc = sc;
|
|
ifp->if_qflush = lagg_qflush;
|
|
ifp->if_init = lagg_init;
|
|
ifp->if_ioctl = lagg_ioctl;
|
|
ifp->if_get_counter = lagg_get_counter;
|
|
ifp->if_flags = IFF_SIMPLEX | IFF_BROADCAST | IFF_MULTICAST;
|
|
#if defined(KERN_TLS) || defined(RATELIMIT)
|
|
ifp->if_snd_tag_alloc = lagg_snd_tag_alloc;
|
|
ifp->if_snd_tag_modify = lagg_snd_tag_modify;
|
|
ifp->if_snd_tag_query = lagg_snd_tag_query;
|
|
ifp->if_snd_tag_free = lagg_snd_tag_free;
|
|
ifp->if_next_snd_tag = lagg_next_snd_tag;
|
|
ifp->if_ratelimit_query = lagg_ratelimit_query;
|
|
#endif
|
|
ifp->if_capenable = ifp->if_capabilities = IFCAP_HWSTATS;
|
|
|
|
/*
|
|
* Attach as an ordinary ethernet device, children will be attached
|
|
* as special device IFT_IEEE8023ADLAG or IFT_INFINIBANDLAG.
|
|
*/
|
|
switch (if_type) {
|
|
case IFT_ETHER:
|
|
ether_ifattach(ifp, eaddr);
|
|
break;
|
|
case IFT_INFINIBAND:
|
|
infiniband_ifattach(ifp, eaddr, sc->sc_bcast_addr);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
sc->vlan_attach = EVENTHANDLER_REGISTER(vlan_config,
|
|
lagg_register_vlan, sc, EVENTHANDLER_PRI_FIRST);
|
|
sc->vlan_detach = EVENTHANDLER_REGISTER(vlan_unconfig,
|
|
lagg_unregister_vlan, sc, EVENTHANDLER_PRI_FIRST);
|
|
|
|
/* Insert into the global list of laggs */
|
|
LAGG_LIST_LOCK();
|
|
SLIST_INSERT_HEAD(&V_lagg_list, sc, sc_entries);
|
|
LAGG_LIST_UNLOCK();
|
|
LAGG_XUNLOCK(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
lagg_clone_destroy(struct ifnet *ifp)
|
|
{
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
struct lagg_port *lp;
|
|
|
|
LAGG_XLOCK(sc);
|
|
sc->sc_destroying = 1;
|
|
lagg_stop(sc);
|
|
ifp->if_flags &= ~IFF_UP;
|
|
|
|
EVENTHANDLER_DEREGISTER(vlan_config, sc->vlan_attach);
|
|
EVENTHANDLER_DEREGISTER(vlan_unconfig, sc->vlan_detach);
|
|
|
|
/* Shutdown and remove lagg ports */
|
|
while ((lp = CK_SLIST_FIRST(&sc->sc_ports)) != NULL)
|
|
lagg_port_destroy(lp, 1);
|
|
|
|
/* Unhook the aggregation protocol */
|
|
lagg_proto_detach(sc);
|
|
LAGG_XUNLOCK(sc);
|
|
|
|
switch (ifp->if_type) {
|
|
case IFT_ETHER:
|
|
ifmedia_removeall(&sc->sc_media);
|
|
ether_ifdetach(ifp);
|
|
break;
|
|
case IFT_INFINIBAND:
|
|
infiniband_ifdetach(ifp);
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
if_free(ifp);
|
|
|
|
LAGG_LIST_LOCK();
|
|
SLIST_REMOVE(&V_lagg_list, sc, lagg_softc, sc_entries);
|
|
LAGG_LIST_UNLOCK();
|
|
|
|
mtx_destroy(&sc->sc_mtx);
|
|
LAGG_SX_DESTROY(sc);
|
|
free(sc, M_LAGG);
|
|
}
|
|
|
|
static void
|
|
lagg_capabilities(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_port *lp;
|
|
int cap, ena, pena;
|
|
uint64_t hwa;
|
|
struct ifnet_hw_tsomax hw_tsomax;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
/* Get common enabled capabilities for the lagg ports */
|
|
ena = ~0;
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
ena &= lp->lp_ifp->if_capenable;
|
|
ena = (ena == ~0 ? 0 : ena);
|
|
|
|
/*
|
|
* Apply common enabled capabilities back to the lagg ports.
|
|
* May require several iterations if they are dependent.
|
|
*/
|
|
do {
|
|
pena = ena;
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
lagg_setcaps(lp, ena);
|
|
ena &= lp->lp_ifp->if_capenable;
|
|
}
|
|
} while (pena != ena);
|
|
|
|
/* Get other capabilities from the lagg ports */
|
|
cap = ~0;
|
|
hwa = ~(uint64_t)0;
|
|
memset(&hw_tsomax, 0, sizeof(hw_tsomax));
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
cap &= lp->lp_ifp->if_capabilities;
|
|
hwa &= lp->lp_ifp->if_hwassist;
|
|
if_hw_tsomax_common(lp->lp_ifp, &hw_tsomax);
|
|
}
|
|
cap = (cap == ~0 ? 0 : cap);
|
|
hwa = (hwa == ~(uint64_t)0 ? 0 : hwa);
|
|
|
|
if (sc->sc_ifp->if_capabilities != cap ||
|
|
sc->sc_ifp->if_capenable != ena ||
|
|
sc->sc_ifp->if_hwassist != hwa ||
|
|
if_hw_tsomax_update(sc->sc_ifp, &hw_tsomax) != 0) {
|
|
sc->sc_ifp->if_capabilities = cap;
|
|
sc->sc_ifp->if_capenable = ena;
|
|
sc->sc_ifp->if_hwassist = hwa;
|
|
getmicrotime(&sc->sc_ifp->if_lastchange);
|
|
|
|
if (sc->sc_ifflags & IFF_DEBUG)
|
|
if_printf(sc->sc_ifp,
|
|
"capabilities 0x%08x enabled 0x%08x\n", cap, ena);
|
|
}
|
|
}
|
|
|
|
static int
|
|
lagg_port_create(struct lagg_softc *sc, struct ifnet *ifp)
|
|
{
|
|
struct lagg_softc *sc_ptr;
|
|
struct lagg_port *lp, *tlp;
|
|
struct ifreq ifr;
|
|
int error, i, oldmtu;
|
|
int if_type;
|
|
uint64_t *pval;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
if (sc->sc_ifp == ifp) {
|
|
if_printf(sc->sc_ifp,
|
|
"cannot add a lagg to itself as a port\n");
|
|
return (EINVAL);
|
|
}
|
|
|
|
if (sc->sc_destroying == 1)
|
|
return (ENXIO);
|
|
|
|
/* Limit the maximal number of lagg ports */
|
|
if (sc->sc_count >= LAGG_MAX_PORTS)
|
|
return (ENOSPC);
|
|
|
|
/* Check if port has already been associated to a lagg */
|
|
if (ifp->if_lagg != NULL) {
|
|
/* Port is already in the current lagg? */
|
|
lp = (struct lagg_port *)ifp->if_lagg;
|
|
if (lp->lp_softc == sc)
|
|
return (EEXIST);
|
|
return (EBUSY);
|
|
}
|
|
|
|
switch (sc->sc_ifp->if_type) {
|
|
case IFT_ETHER:
|
|
/* XXX Disallow non-ethernet interfaces (this should be any of 802) */
|
|
if (ifp->if_type != IFT_ETHER && ifp->if_type != IFT_L2VLAN)
|
|
return (EPROTONOSUPPORT);
|
|
if_type = IFT_IEEE8023ADLAG;
|
|
break;
|
|
case IFT_INFINIBAND:
|
|
/* XXX Disallow non-infiniband interfaces */
|
|
if (ifp->if_type != IFT_INFINIBAND)
|
|
return (EPROTONOSUPPORT);
|
|
if_type = IFT_INFINIBANDLAG;
|
|
break;
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* Allow the first Ethernet member to define the MTU */
|
|
oldmtu = -1;
|
|
if (CK_SLIST_EMPTY(&sc->sc_ports)) {
|
|
sc->sc_ifp->if_mtu = ifp->if_mtu;
|
|
} else if (sc->sc_ifp->if_mtu != ifp->if_mtu) {
|
|
if (ifp->if_ioctl == NULL) {
|
|
if_printf(sc->sc_ifp, "cannot change MTU for %s\n",
|
|
ifp->if_xname);
|
|
return (EINVAL);
|
|
}
|
|
oldmtu = ifp->if_mtu;
|
|
strlcpy(ifr.ifr_name, ifp->if_xname, sizeof(ifr.ifr_name));
|
|
ifr.ifr_mtu = sc->sc_ifp->if_mtu;
|
|
error = (*ifp->if_ioctl)(ifp, SIOCSIFMTU, (caddr_t)&ifr);
|
|
if (error != 0) {
|
|
if_printf(sc->sc_ifp, "invalid MTU for %s\n",
|
|
ifp->if_xname);
|
|
return (error);
|
|
}
|
|
ifr.ifr_mtu = oldmtu;
|
|
}
|
|
|
|
lp = malloc(sizeof(struct lagg_port), M_LAGG, M_WAITOK|M_ZERO);
|
|
lp->lp_softc = sc;
|
|
|
|
/* Check if port is a stacked lagg */
|
|
LAGG_LIST_LOCK();
|
|
SLIST_FOREACH(sc_ptr, &V_lagg_list, sc_entries) {
|
|
if (ifp == sc_ptr->sc_ifp) {
|
|
LAGG_LIST_UNLOCK();
|
|
free(lp, M_LAGG);
|
|
if (oldmtu != -1)
|
|
(*ifp->if_ioctl)(ifp, SIOCSIFMTU,
|
|
(caddr_t)&ifr);
|
|
return (EINVAL);
|
|
/* XXX disable stacking for the moment, its untested */
|
|
#ifdef LAGG_PORT_STACKING
|
|
lp->lp_flags |= LAGG_PORT_STACK;
|
|
if (lagg_port_checkstacking(sc_ptr) >=
|
|
LAGG_MAX_STACKING) {
|
|
LAGG_LIST_UNLOCK();
|
|
free(lp, M_LAGG);
|
|
if (oldmtu != -1)
|
|
(*ifp->if_ioctl)(ifp, SIOCSIFMTU,
|
|
(caddr_t)&ifr);
|
|
return (E2BIG);
|
|
}
|
|
#endif
|
|
}
|
|
}
|
|
LAGG_LIST_UNLOCK();
|
|
|
|
if_ref(ifp);
|
|
lp->lp_ifp = ifp;
|
|
|
|
bcopy(IF_LLADDR(ifp), lp->lp_lladdr, ifp->if_addrlen);
|
|
lp->lp_ifcapenable = ifp->if_capenable;
|
|
if (CK_SLIST_EMPTY(&sc->sc_ports)) {
|
|
bcopy(IF_LLADDR(ifp), IF_LLADDR(sc->sc_ifp), ifp->if_addrlen);
|
|
lagg_proto_lladdr(sc);
|
|
EVENTHANDLER_INVOKE(iflladdr_event, sc->sc_ifp);
|
|
} else {
|
|
if_setlladdr(ifp, IF_LLADDR(sc->sc_ifp), ifp->if_addrlen);
|
|
}
|
|
lagg_setflags(lp, 1);
|
|
|
|
if (CK_SLIST_EMPTY(&sc->sc_ports))
|
|
sc->sc_primary = lp;
|
|
|
|
/* Change the interface type */
|
|
lp->lp_iftype = ifp->if_type;
|
|
ifp->if_type = if_type;
|
|
ifp->if_lagg = lp;
|
|
lp->lp_ioctl = ifp->if_ioctl;
|
|
ifp->if_ioctl = lagg_port_ioctl;
|
|
lp->lp_output = ifp->if_output;
|
|
ifp->if_output = lagg_port_output;
|
|
|
|
/* Read port counters */
|
|
pval = lp->port_counters.val;
|
|
for (i = 0; i < IFCOUNTERS; i++, pval++)
|
|
*pval = ifp->if_get_counter(ifp, i);
|
|
|
|
/*
|
|
* Insert into the list of ports.
|
|
* Keep ports sorted by if_index. It is handy, when configuration
|
|
* is predictable and `ifconfig laggN create ...` command
|
|
* will lead to the same result each time.
|
|
*/
|
|
CK_SLIST_FOREACH(tlp, &sc->sc_ports, lp_entries) {
|
|
if (tlp->lp_ifp->if_index < ifp->if_index && (
|
|
CK_SLIST_NEXT(tlp, lp_entries) == NULL ||
|
|
((struct lagg_port*)CK_SLIST_NEXT(tlp, lp_entries))->lp_ifp->if_index >
|
|
ifp->if_index))
|
|
break;
|
|
}
|
|
if (tlp != NULL)
|
|
CK_SLIST_INSERT_AFTER(tlp, lp, lp_entries);
|
|
else
|
|
CK_SLIST_INSERT_HEAD(&sc->sc_ports, lp, lp_entries);
|
|
sc->sc_count++;
|
|
|
|
lagg_setmulti(lp);
|
|
|
|
if ((error = lagg_proto_addport(sc, lp)) != 0) {
|
|
/* Remove the port, without calling pr_delport. */
|
|
lagg_port_destroy(lp, 0);
|
|
if (oldmtu != -1)
|
|
(*ifp->if_ioctl)(ifp, SIOCSIFMTU, (caddr_t)&ifr);
|
|
return (error);
|
|
}
|
|
|
|
/* Update lagg capabilities */
|
|
lagg_capabilities(sc);
|
|
lagg_linkstate(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
#ifdef LAGG_PORT_STACKING
|
|
static int
|
|
lagg_port_checkstacking(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_softc *sc_ptr;
|
|
struct lagg_port *lp;
|
|
int m = 0;
|
|
|
|
LAGG_SXLOCK_ASSERT(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (lp->lp_flags & LAGG_PORT_STACK) {
|
|
sc_ptr = (struct lagg_softc *)lp->lp_ifp->if_softc;
|
|
m = MAX(m, lagg_port_checkstacking(sc_ptr));
|
|
}
|
|
}
|
|
|
|
return (m + 1);
|
|
}
|
|
#endif
|
|
|
|
static void
|
|
lagg_port_destroy_cb(epoch_context_t ec)
|
|
{
|
|
struct lagg_port *lp;
|
|
struct ifnet *ifp;
|
|
|
|
lp = __containerof(ec, struct lagg_port, lp_epoch_ctx);
|
|
ifp = lp->lp_ifp;
|
|
|
|
if_rele(ifp);
|
|
free(lp, M_LAGG);
|
|
}
|
|
|
|
static int
|
|
lagg_port_destroy(struct lagg_port *lp, int rundelport)
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
struct lagg_port *lp_ptr, *lp0;
|
|
struct ifnet *ifp = lp->lp_ifp;
|
|
uint64_t *pval, vdiff;
|
|
int i;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
if (rundelport)
|
|
lagg_proto_delport(sc, lp);
|
|
|
|
if (lp->lp_detaching == 0)
|
|
lagg_clrmulti(lp);
|
|
|
|
/* Restore interface */
|
|
ifp->if_type = lp->lp_iftype;
|
|
ifp->if_ioctl = lp->lp_ioctl;
|
|
ifp->if_output = lp->lp_output;
|
|
ifp->if_lagg = NULL;
|
|
|
|
/* Update detached port counters */
|
|
pval = lp->port_counters.val;
|
|
for (i = 0; i < IFCOUNTERS; i++, pval++) {
|
|
vdiff = ifp->if_get_counter(ifp, i) - *pval;
|
|
sc->detached_counters.val[i] += vdiff;
|
|
}
|
|
|
|
/* Finally, remove the port from the lagg */
|
|
CK_SLIST_REMOVE(&sc->sc_ports, lp, lagg_port, lp_entries);
|
|
sc->sc_count--;
|
|
|
|
/* Update the primary interface */
|
|
if (lp == sc->sc_primary) {
|
|
uint8_t lladdr[LAGG_ADDR_LEN];
|
|
|
|
if ((lp0 = CK_SLIST_FIRST(&sc->sc_ports)) == NULL)
|
|
bzero(&lladdr, LAGG_ADDR_LEN);
|
|
else
|
|
bcopy(lp0->lp_lladdr, lladdr, LAGG_ADDR_LEN);
|
|
sc->sc_primary = lp0;
|
|
if (sc->sc_destroying == 0) {
|
|
bcopy(lladdr, IF_LLADDR(sc->sc_ifp), sc->sc_ifp->if_addrlen);
|
|
lagg_proto_lladdr(sc);
|
|
EVENTHANDLER_INVOKE(iflladdr_event, sc->sc_ifp);
|
|
|
|
/*
|
|
* Update lladdr for each port (new primary needs update
|
|
* as well, to switch from old lladdr to its 'real' one).
|
|
* We can skip this if the lagg is being destroyed.
|
|
*/
|
|
CK_SLIST_FOREACH(lp_ptr, &sc->sc_ports, lp_entries)
|
|
if_setlladdr(lp_ptr->lp_ifp, lladdr,
|
|
lp_ptr->lp_ifp->if_addrlen);
|
|
}
|
|
}
|
|
|
|
if (lp->lp_ifflags)
|
|
if_printf(ifp, "%s: lp_ifflags unclean\n", __func__);
|
|
|
|
if (lp->lp_detaching == 0) {
|
|
lagg_setflags(lp, 0);
|
|
lagg_setcaps(lp, lp->lp_ifcapenable);
|
|
if_setlladdr(ifp, lp->lp_lladdr, ifp->if_addrlen);
|
|
}
|
|
|
|
/*
|
|
* free port and release it's ifnet reference after a grace period has
|
|
* elapsed.
|
|
*/
|
|
NET_EPOCH_CALL(lagg_port_destroy_cb, &lp->lp_epoch_ctx);
|
|
/* Update lagg capabilities */
|
|
lagg_capabilities(sc);
|
|
lagg_linkstate(sc);
|
|
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
lagg_port_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_reqport *rp = (struct lagg_reqport *)data;
|
|
struct lagg_softc *sc;
|
|
struct lagg_port *lp = NULL;
|
|
int error = 0;
|
|
|
|
/* Should be checked by the caller */
|
|
switch (ifp->if_type) {
|
|
case IFT_IEEE8023ADLAG:
|
|
case IFT_INFINIBANDLAG:
|
|
if ((lp = ifp->if_lagg) == NULL || (sc = lp->lp_softc) == NULL)
|
|
goto fallback;
|
|
break;
|
|
default:
|
|
goto fallback;
|
|
}
|
|
|
|
switch (cmd) {
|
|
case SIOCGLAGGPORT:
|
|
if (rp->rp_portname[0] == '\0' ||
|
|
ifunit(rp->rp_portname) != ifp) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
if ((lp = ifp->if_lagg) == NULL || lp->lp_softc != sc) {
|
|
error = ENOENT;
|
|
NET_EPOCH_EXIT(et);
|
|
break;
|
|
}
|
|
|
|
lagg_port2req(lp, rp);
|
|
NET_EPOCH_EXIT(et);
|
|
break;
|
|
|
|
case SIOCSIFCAP:
|
|
if (lp->lp_ioctl == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
error = (*lp->lp_ioctl)(ifp, cmd, data);
|
|
if (error)
|
|
break;
|
|
|
|
/* Update lagg interface capabilities */
|
|
LAGG_XLOCK(sc);
|
|
lagg_capabilities(sc);
|
|
LAGG_XUNLOCK(sc);
|
|
VLAN_CAPABILITIES(sc->sc_ifp);
|
|
break;
|
|
|
|
case SIOCSIFMTU:
|
|
/* Do not allow the MTU to be changed once joined */
|
|
error = EINVAL;
|
|
break;
|
|
|
|
default:
|
|
goto fallback;
|
|
}
|
|
|
|
return (error);
|
|
|
|
fallback:
|
|
if (lp != NULL && lp->lp_ioctl != NULL)
|
|
return ((*lp->lp_ioctl)(ifp, cmd, data));
|
|
|
|
return (EINVAL);
|
|
}
|
|
|
|
/*
|
|
* Requests counter @cnt data.
|
|
*
|
|
* Counter value is calculated the following way:
|
|
* 1) for each port, sum difference between current and "initial" measurements.
|
|
* 2) add lagg logical interface counters.
|
|
* 3) add data from detached_counters array.
|
|
*
|
|
* We also do the following things on ports attach/detach:
|
|
* 1) On port attach we store all counters it has into port_counter array.
|
|
* 2) On port detach we add the different between "initial" and
|
|
* current counters data to detached_counters array.
|
|
*/
|
|
static uint64_t
|
|
lagg_get_counter(struct ifnet *ifp, ift_counter cnt)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc;
|
|
struct lagg_port *lp;
|
|
struct ifnet *lpifp;
|
|
uint64_t newval, oldval, vsum;
|
|
|
|
/* Revise this when we've got non-generic counters. */
|
|
KASSERT(cnt < IFCOUNTERS, ("%s: invalid cnt %d", __func__, cnt));
|
|
|
|
sc = (struct lagg_softc *)ifp->if_softc;
|
|
|
|
vsum = 0;
|
|
NET_EPOCH_ENTER(et);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
/* Saved attached value */
|
|
oldval = lp->port_counters.val[cnt];
|
|
/* current value */
|
|
lpifp = lp->lp_ifp;
|
|
newval = lpifp->if_get_counter(lpifp, cnt);
|
|
/* Calculate diff and save new */
|
|
vsum += newval - oldval;
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
|
|
/*
|
|
* Add counter data which might be added by upper
|
|
* layer protocols operating on logical interface.
|
|
*/
|
|
vsum += if_get_counter_default(ifp, cnt);
|
|
|
|
/*
|
|
* Add counter data from detached ports counters
|
|
*/
|
|
vsum += sc->detached_counters.val[cnt];
|
|
|
|
return (vsum);
|
|
}
|
|
|
|
/*
|
|
* For direct output to child ports.
|
|
*/
|
|
static int
|
|
lagg_port_output(struct ifnet *ifp, struct mbuf *m,
|
|
const struct sockaddr *dst, struct route *ro)
|
|
{
|
|
struct lagg_port *lp = ifp->if_lagg;
|
|
|
|
switch (dst->sa_family) {
|
|
case pseudo_AF_HDRCMPLT:
|
|
case AF_UNSPEC:
|
|
if (lp != NULL)
|
|
return ((*lp->lp_output)(ifp, m, dst, ro));
|
|
}
|
|
|
|
/* drop any other frames */
|
|
m_freem(m);
|
|
return (ENETDOWN);
|
|
}
|
|
|
|
static void
|
|
lagg_port_ifdetach(void *arg __unused, struct ifnet *ifp)
|
|
{
|
|
struct lagg_port *lp;
|
|
struct lagg_softc *sc;
|
|
|
|
if ((lp = ifp->if_lagg) == NULL)
|
|
return;
|
|
/* If the ifnet is just being renamed, don't do anything. */
|
|
if (ifp->if_flags & IFF_RENAMING)
|
|
return;
|
|
|
|
sc = lp->lp_softc;
|
|
|
|
LAGG_XLOCK(sc);
|
|
lp->lp_detaching = 1;
|
|
lagg_port_destroy(lp, 1);
|
|
LAGG_XUNLOCK(sc);
|
|
VLAN_CAPABILITIES(sc->sc_ifp);
|
|
}
|
|
|
|
static void
|
|
lagg_port2req(struct lagg_port *lp, struct lagg_reqport *rp)
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
|
|
strlcpy(rp->rp_ifname, sc->sc_ifname, sizeof(rp->rp_ifname));
|
|
strlcpy(rp->rp_portname, lp->lp_ifp->if_xname, sizeof(rp->rp_portname));
|
|
rp->rp_prio = lp->lp_prio;
|
|
rp->rp_flags = lp->lp_flags;
|
|
lagg_proto_portreq(sc, lp, &rp->rp_psc);
|
|
|
|
/* Add protocol specific flags */
|
|
switch (sc->sc_proto) {
|
|
case LAGG_PROTO_FAILOVER:
|
|
if (lp == sc->sc_primary)
|
|
rp->rp_flags |= LAGG_PORT_MASTER;
|
|
if (lp == lagg_link_active(sc, sc->sc_primary))
|
|
rp->rp_flags |= LAGG_PORT_ACTIVE;
|
|
break;
|
|
|
|
case LAGG_PROTO_ROUNDROBIN:
|
|
case LAGG_PROTO_LOADBALANCE:
|
|
case LAGG_PROTO_BROADCAST:
|
|
if (LAGG_PORTACTIVE(lp))
|
|
rp->rp_flags |= LAGG_PORT_ACTIVE;
|
|
break;
|
|
|
|
case LAGG_PROTO_LACP:
|
|
/* LACP has a different definition of active */
|
|
if (lacp_isactive(lp))
|
|
rp->rp_flags |= LAGG_PORT_ACTIVE;
|
|
if (lacp_iscollecting(lp))
|
|
rp->rp_flags |= LAGG_PORT_COLLECTING;
|
|
if (lacp_isdistributing(lp))
|
|
rp->rp_flags |= LAGG_PORT_DISTRIBUTING;
|
|
break;
|
|
}
|
|
|
|
}
|
|
|
|
static void
|
|
lagg_watchdog_infiniband(void *arg)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc;
|
|
struct lagg_port *lp;
|
|
struct ifnet *ifp;
|
|
struct ifnet *lp_ifp;
|
|
|
|
sc = arg;
|
|
|
|
/*
|
|
* Because infiniband nodes have a fixed MAC address, which is
|
|
* generated by the so-called GID, we need to regularly update
|
|
* the link level address of the parent lagg<N> device when
|
|
* the active port changes. Possibly we could piggy-back on
|
|
* link up/down events aswell, but using a timer also provides
|
|
* a guarantee against too frequent events. This operation
|
|
* does not have to be atomic.
|
|
*/
|
|
NET_EPOCH_ENTER(et);
|
|
lp = lagg_link_active(sc, sc->sc_primary);
|
|
if (lp != NULL) {
|
|
ifp = sc->sc_ifp;
|
|
lp_ifp = lp->lp_ifp;
|
|
|
|
if (ifp != NULL && lp_ifp != NULL &&
|
|
(memcmp(IF_LLADDR(ifp), IF_LLADDR(lp_ifp), ifp->if_addrlen) != 0 ||
|
|
memcmp(sc->sc_bcast_addr, lp_ifp->if_broadcastaddr, ifp->if_addrlen) != 0)) {
|
|
memcpy(IF_LLADDR(ifp), IF_LLADDR(lp_ifp), ifp->if_addrlen);
|
|
memcpy(sc->sc_bcast_addr, lp_ifp->if_broadcastaddr, ifp->if_addrlen);
|
|
|
|
CURVNET_SET(ifp->if_vnet);
|
|
EVENTHANDLER_INVOKE(iflladdr_event, ifp);
|
|
CURVNET_RESTORE();
|
|
}
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
|
|
callout_reset(&sc->sc_watchdog, hz, &lagg_watchdog_infiniband, arg);
|
|
}
|
|
|
|
static void
|
|
lagg_init(void *xsc)
|
|
{
|
|
struct lagg_softc *sc = (struct lagg_softc *)xsc;
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct lagg_port *lp;
|
|
|
|
LAGG_XLOCK(sc);
|
|
if (ifp->if_drv_flags & IFF_DRV_RUNNING) {
|
|
LAGG_XUNLOCK(sc);
|
|
return;
|
|
}
|
|
|
|
ifp->if_drv_flags |= IFF_DRV_RUNNING;
|
|
|
|
/*
|
|
* Update the port lladdrs if needed.
|
|
* This might be if_setlladdr() notification
|
|
* that lladdr has been changed.
|
|
*/
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (memcmp(IF_LLADDR(ifp), IF_LLADDR(lp->lp_ifp),
|
|
ifp->if_addrlen) != 0)
|
|
if_setlladdr(lp->lp_ifp, IF_LLADDR(ifp), ifp->if_addrlen);
|
|
}
|
|
|
|
lagg_proto_init(sc);
|
|
|
|
if (ifp->if_type == IFT_INFINIBAND) {
|
|
mtx_lock(&sc->sc_mtx);
|
|
lagg_watchdog_infiniband(sc);
|
|
mtx_unlock(&sc->sc_mtx);
|
|
}
|
|
|
|
LAGG_XUNLOCK(sc);
|
|
}
|
|
|
|
static void
|
|
lagg_stop(struct lagg_softc *sc)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
if ((ifp->if_drv_flags & IFF_DRV_RUNNING) == 0)
|
|
return;
|
|
|
|
ifp->if_drv_flags &= ~IFF_DRV_RUNNING;
|
|
|
|
lagg_proto_stop(sc);
|
|
|
|
mtx_lock(&sc->sc_mtx);
|
|
callout_stop(&sc->sc_watchdog);
|
|
mtx_unlock(&sc->sc_mtx);
|
|
|
|
callout_drain(&sc->sc_watchdog);
|
|
}
|
|
|
|
static int
|
|
lagg_ioctl(struct ifnet *ifp, u_long cmd, caddr_t data)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
struct lagg_reqall *ra = (struct lagg_reqall *)data;
|
|
struct lagg_reqopts *ro = (struct lagg_reqopts *)data;
|
|
struct lagg_reqport *rp = (struct lagg_reqport *)data, rpbuf;
|
|
struct lagg_reqflags *rf = (struct lagg_reqflags *)data;
|
|
struct ifreq *ifr = (struct ifreq *)data;
|
|
struct lagg_port *lp;
|
|
struct ifnet *tpif;
|
|
struct thread *td = curthread;
|
|
char *buf, *outbuf;
|
|
int count, buflen, len, error = 0, oldmtu;
|
|
|
|
bzero(&rpbuf, sizeof(rpbuf));
|
|
|
|
/* XXX: This can race with lagg_clone_destroy. */
|
|
|
|
switch (cmd) {
|
|
case SIOCGLAGG:
|
|
LAGG_XLOCK(sc);
|
|
buflen = sc->sc_count * sizeof(struct lagg_reqport);
|
|
outbuf = malloc(buflen, M_TEMP, M_WAITOK | M_ZERO);
|
|
ra->ra_proto = sc->sc_proto;
|
|
lagg_proto_request(sc, &ra->ra_psc);
|
|
count = 0;
|
|
buf = outbuf;
|
|
len = min(ra->ra_size, buflen);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (len < sizeof(rpbuf))
|
|
break;
|
|
|
|
lagg_port2req(lp, &rpbuf);
|
|
memcpy(buf, &rpbuf, sizeof(rpbuf));
|
|
count++;
|
|
buf += sizeof(rpbuf);
|
|
len -= sizeof(rpbuf);
|
|
}
|
|
LAGG_XUNLOCK(sc);
|
|
ra->ra_ports = count;
|
|
ra->ra_size = count * sizeof(rpbuf);
|
|
error = copyout(outbuf, ra->ra_port, ra->ra_size);
|
|
free(outbuf, M_TEMP);
|
|
break;
|
|
case SIOCSLAGG:
|
|
error = priv_check(td, PRIV_NET_LAGG);
|
|
if (error)
|
|
break;
|
|
if (ra->ra_proto >= LAGG_PROTO_MAX) {
|
|
error = EPROTONOSUPPORT;
|
|
break;
|
|
}
|
|
/* Infiniband only supports the failover protocol. */
|
|
if (ra->ra_proto != LAGG_PROTO_FAILOVER &&
|
|
ifp->if_type == IFT_INFINIBAND) {
|
|
error = EPROTONOSUPPORT;
|
|
break;
|
|
}
|
|
LAGG_XLOCK(sc);
|
|
lagg_proto_detach(sc);
|
|
lagg_proto_attach(sc, ra->ra_proto);
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCGLAGGOPTS:
|
|
LAGG_XLOCK(sc);
|
|
ro->ro_opts = sc->sc_opts;
|
|
if (sc->sc_proto == LAGG_PROTO_LACP) {
|
|
struct lacp_softc *lsc;
|
|
|
|
lsc = (struct lacp_softc *)sc->sc_psc;
|
|
if (lsc->lsc_debug.lsc_tx_test != 0)
|
|
ro->ro_opts |= LAGG_OPT_LACP_TXTEST;
|
|
if (lsc->lsc_debug.lsc_rx_test != 0)
|
|
ro->ro_opts |= LAGG_OPT_LACP_RXTEST;
|
|
if (lsc->lsc_strict_mode != 0)
|
|
ro->ro_opts |= LAGG_OPT_LACP_STRICT;
|
|
if (lsc->lsc_fast_timeout != 0)
|
|
ro->ro_opts |= LAGG_OPT_LACP_FAST_TIMO;
|
|
|
|
ro->ro_active = sc->sc_active;
|
|
} else {
|
|
ro->ro_active = 0;
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
ro->ro_active += LAGG_PORTACTIVE(lp);
|
|
}
|
|
ro->ro_bkt = sc->sc_stride;
|
|
ro->ro_flapping = sc->sc_flapping;
|
|
ro->ro_flowid_shift = sc->flowid_shift;
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCSLAGGOPTS:
|
|
error = priv_check(td, PRIV_NET_LAGG);
|
|
if (error)
|
|
break;
|
|
|
|
/*
|
|
* The stride option was added without defining a corresponding
|
|
* LAGG_OPT flag, so handle a non-zero value before checking
|
|
* anything else to preserve compatibility.
|
|
*/
|
|
LAGG_XLOCK(sc);
|
|
if (ro->ro_opts == 0 && ro->ro_bkt != 0) {
|
|
if (sc->sc_proto != LAGG_PROTO_ROUNDROBIN) {
|
|
LAGG_XUNLOCK(sc);
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
sc->sc_stride = ro->ro_bkt;
|
|
}
|
|
if (ro->ro_opts == 0) {
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
}
|
|
|
|
/*
|
|
* Set options. LACP options are stored in sc->sc_psc,
|
|
* not in sc_opts.
|
|
*/
|
|
int valid, lacp;
|
|
|
|
switch (ro->ro_opts) {
|
|
case LAGG_OPT_USE_FLOWID:
|
|
case -LAGG_OPT_USE_FLOWID:
|
|
case LAGG_OPT_USE_NUMA:
|
|
case -LAGG_OPT_USE_NUMA:
|
|
case LAGG_OPT_FLOWIDSHIFT:
|
|
case LAGG_OPT_RR_LIMIT:
|
|
valid = 1;
|
|
lacp = 0;
|
|
break;
|
|
case LAGG_OPT_LACP_TXTEST:
|
|
case -LAGG_OPT_LACP_TXTEST:
|
|
case LAGG_OPT_LACP_RXTEST:
|
|
case -LAGG_OPT_LACP_RXTEST:
|
|
case LAGG_OPT_LACP_STRICT:
|
|
case -LAGG_OPT_LACP_STRICT:
|
|
case LAGG_OPT_LACP_FAST_TIMO:
|
|
case -LAGG_OPT_LACP_FAST_TIMO:
|
|
valid = lacp = 1;
|
|
break;
|
|
default:
|
|
valid = lacp = 0;
|
|
break;
|
|
}
|
|
|
|
if (valid == 0 ||
|
|
(lacp == 1 && sc->sc_proto != LAGG_PROTO_LACP)) {
|
|
/* Invalid combination of options specified. */
|
|
error = EINVAL;
|
|
LAGG_XUNLOCK(sc);
|
|
break; /* Return from SIOCSLAGGOPTS. */
|
|
}
|
|
|
|
/*
|
|
* Store new options into sc->sc_opts except for
|
|
* FLOWIDSHIFT, RR and LACP options.
|
|
*/
|
|
if (lacp == 0) {
|
|
if (ro->ro_opts == LAGG_OPT_FLOWIDSHIFT)
|
|
sc->flowid_shift = ro->ro_flowid_shift;
|
|
else if (ro->ro_opts == LAGG_OPT_RR_LIMIT) {
|
|
if (sc->sc_proto != LAGG_PROTO_ROUNDROBIN ||
|
|
ro->ro_bkt == 0) {
|
|
error = EINVAL;
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
}
|
|
sc->sc_stride = ro->ro_bkt;
|
|
} else if (ro->ro_opts > 0)
|
|
sc->sc_opts |= ro->ro_opts;
|
|
else
|
|
sc->sc_opts &= ~ro->ro_opts;
|
|
} else {
|
|
struct lacp_softc *lsc;
|
|
struct lacp_port *lp;
|
|
|
|
lsc = (struct lacp_softc *)sc->sc_psc;
|
|
|
|
switch (ro->ro_opts) {
|
|
case LAGG_OPT_LACP_TXTEST:
|
|
lsc->lsc_debug.lsc_tx_test = 1;
|
|
break;
|
|
case -LAGG_OPT_LACP_TXTEST:
|
|
lsc->lsc_debug.lsc_tx_test = 0;
|
|
break;
|
|
case LAGG_OPT_LACP_RXTEST:
|
|
lsc->lsc_debug.lsc_rx_test = 1;
|
|
break;
|
|
case -LAGG_OPT_LACP_RXTEST:
|
|
lsc->lsc_debug.lsc_rx_test = 0;
|
|
break;
|
|
case LAGG_OPT_LACP_STRICT:
|
|
lsc->lsc_strict_mode = 1;
|
|
break;
|
|
case -LAGG_OPT_LACP_STRICT:
|
|
lsc->lsc_strict_mode = 0;
|
|
break;
|
|
case LAGG_OPT_LACP_FAST_TIMO:
|
|
LACP_LOCK(lsc);
|
|
LIST_FOREACH(lp, &lsc->lsc_ports, lp_next)
|
|
lp->lp_state |= LACP_STATE_TIMEOUT;
|
|
LACP_UNLOCK(lsc);
|
|
lsc->lsc_fast_timeout = 1;
|
|
break;
|
|
case -LAGG_OPT_LACP_FAST_TIMO:
|
|
LACP_LOCK(lsc);
|
|
LIST_FOREACH(lp, &lsc->lsc_ports, lp_next)
|
|
lp->lp_state &= ~LACP_STATE_TIMEOUT;
|
|
LACP_UNLOCK(lsc);
|
|
lsc->lsc_fast_timeout = 0;
|
|
break;
|
|
}
|
|
}
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCGLAGGFLAGS:
|
|
rf->rf_flags = 0;
|
|
LAGG_XLOCK(sc);
|
|
if (sc->sc_flags & MBUF_HASHFLAG_L2)
|
|
rf->rf_flags |= LAGG_F_HASHL2;
|
|
if (sc->sc_flags & MBUF_HASHFLAG_L3)
|
|
rf->rf_flags |= LAGG_F_HASHL3;
|
|
if (sc->sc_flags & MBUF_HASHFLAG_L4)
|
|
rf->rf_flags |= LAGG_F_HASHL4;
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCSLAGGHASH:
|
|
error = priv_check(td, PRIV_NET_LAGG);
|
|
if (error)
|
|
break;
|
|
if ((rf->rf_flags & LAGG_F_HASHMASK) == 0) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
LAGG_XLOCK(sc);
|
|
sc->sc_flags = 0;
|
|
if (rf->rf_flags & LAGG_F_HASHL2)
|
|
sc->sc_flags |= MBUF_HASHFLAG_L2;
|
|
if (rf->rf_flags & LAGG_F_HASHL3)
|
|
sc->sc_flags |= MBUF_HASHFLAG_L3;
|
|
if (rf->rf_flags & LAGG_F_HASHL4)
|
|
sc->sc_flags |= MBUF_HASHFLAG_L4;
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCGLAGGPORT:
|
|
if (rp->rp_portname[0] == '\0' ||
|
|
(tpif = ifunit_ref(rp->rp_portname)) == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
if ((lp = (struct lagg_port *)tpif->if_lagg) == NULL ||
|
|
lp->lp_softc != sc) {
|
|
error = ENOENT;
|
|
NET_EPOCH_EXIT(et);
|
|
if_rele(tpif);
|
|
break;
|
|
}
|
|
|
|
lagg_port2req(lp, rp);
|
|
NET_EPOCH_EXIT(et);
|
|
if_rele(tpif);
|
|
break;
|
|
case SIOCSLAGGPORT:
|
|
error = priv_check(td, PRIV_NET_LAGG);
|
|
if (error)
|
|
break;
|
|
if (rp->rp_portname[0] == '\0' ||
|
|
(tpif = ifunit_ref(rp->rp_portname)) == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
#ifdef INET6
|
|
/*
|
|
* A laggport interface should not have inet6 address
|
|
* because two interfaces with a valid link-local
|
|
* scope zone must not be merged in any form. This
|
|
* restriction is needed to prevent violation of
|
|
* link-local scope zone. Attempts to add a laggport
|
|
* interface which has inet6 addresses triggers
|
|
* removal of all inet6 addresses on the member
|
|
* interface.
|
|
*/
|
|
if (in6ifa_llaonifp(tpif)) {
|
|
in6_ifdetach(tpif);
|
|
if_printf(sc->sc_ifp,
|
|
"IPv6 addresses on %s have been removed "
|
|
"before adding it as a member to prevent "
|
|
"IPv6 address scope violation.\n",
|
|
tpif->if_xname);
|
|
}
|
|
#endif
|
|
oldmtu = ifp->if_mtu;
|
|
LAGG_XLOCK(sc);
|
|
error = lagg_port_create(sc, tpif);
|
|
LAGG_XUNLOCK(sc);
|
|
if_rele(tpif);
|
|
|
|
/*
|
|
* LAGG MTU may change during addition of the first port.
|
|
* If it did, do network layer specific procedure.
|
|
*/
|
|
if (ifp->if_mtu != oldmtu) {
|
|
#ifdef INET6
|
|
nd6_setmtu(ifp);
|
|
#endif
|
|
rt_updatemtu(ifp);
|
|
}
|
|
|
|
VLAN_CAPABILITIES(ifp);
|
|
break;
|
|
case SIOCSLAGGDELPORT:
|
|
error = priv_check(td, PRIV_NET_LAGG);
|
|
if (error)
|
|
break;
|
|
if (rp->rp_portname[0] == '\0' ||
|
|
(tpif = ifunit_ref(rp->rp_portname)) == NULL) {
|
|
error = EINVAL;
|
|
break;
|
|
}
|
|
|
|
LAGG_XLOCK(sc);
|
|
if ((lp = (struct lagg_port *)tpif->if_lagg) == NULL ||
|
|
lp->lp_softc != sc) {
|
|
error = ENOENT;
|
|
LAGG_XUNLOCK(sc);
|
|
if_rele(tpif);
|
|
break;
|
|
}
|
|
|
|
error = lagg_port_destroy(lp, 1);
|
|
LAGG_XUNLOCK(sc);
|
|
if_rele(tpif);
|
|
VLAN_CAPABILITIES(ifp);
|
|
break;
|
|
case SIOCSIFFLAGS:
|
|
/* Set flags on ports too */
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
lagg_setflags(lp, 1);
|
|
}
|
|
|
|
if (!(ifp->if_flags & IFF_UP) &&
|
|
(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
/*
|
|
* If interface is marked down and it is running,
|
|
* then stop and disable it.
|
|
*/
|
|
lagg_stop(sc);
|
|
LAGG_XUNLOCK(sc);
|
|
} else if ((ifp->if_flags & IFF_UP) &&
|
|
!(ifp->if_drv_flags & IFF_DRV_RUNNING)) {
|
|
/*
|
|
* If interface is marked up and it is stopped, then
|
|
* start it.
|
|
*/
|
|
LAGG_XUNLOCK(sc);
|
|
(*ifp->if_init)(sc);
|
|
} else
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
case SIOCADDMULTI:
|
|
case SIOCDELMULTI:
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
lagg_clrmulti(lp);
|
|
lagg_setmulti(lp);
|
|
}
|
|
LAGG_XUNLOCK(sc);
|
|
error = 0;
|
|
break;
|
|
case SIOCSIFMEDIA:
|
|
case SIOCGIFMEDIA:
|
|
if (ifp->if_type == IFT_INFINIBAND)
|
|
error = EINVAL;
|
|
else
|
|
error = ifmedia_ioctl(ifp, ifr, &sc->sc_media, cmd);
|
|
break;
|
|
|
|
case SIOCSIFCAP:
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (lp->lp_ioctl != NULL)
|
|
(*lp->lp_ioctl)(lp->lp_ifp, cmd, data);
|
|
}
|
|
lagg_capabilities(sc);
|
|
LAGG_XUNLOCK(sc);
|
|
VLAN_CAPABILITIES(ifp);
|
|
error = 0;
|
|
break;
|
|
|
|
case SIOCSIFMTU:
|
|
LAGG_XLOCK(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (lp->lp_ioctl != NULL)
|
|
error = (*lp->lp_ioctl)(lp->lp_ifp, cmd, data);
|
|
else
|
|
error = EINVAL;
|
|
if (error != 0) {
|
|
if_printf(ifp,
|
|
"failed to change MTU to %d on port %s, "
|
|
"reverting all ports to original MTU (%d)\n",
|
|
ifr->ifr_mtu, lp->lp_ifp->if_xname, ifp->if_mtu);
|
|
break;
|
|
}
|
|
}
|
|
if (error == 0) {
|
|
ifp->if_mtu = ifr->ifr_mtu;
|
|
} else {
|
|
/* set every port back to the original MTU */
|
|
ifr->ifr_mtu = ifp->if_mtu;
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (lp->lp_ioctl != NULL)
|
|
(*lp->lp_ioctl)(lp->lp_ifp, cmd, data);
|
|
}
|
|
}
|
|
LAGG_XUNLOCK(sc);
|
|
break;
|
|
|
|
default:
|
|
error = ether_ioctl(ifp, cmd, data);
|
|
break;
|
|
}
|
|
return (error);
|
|
}
|
|
|
|
#if defined(KERN_TLS) || defined(RATELIMIT)
|
|
static inline struct lagg_snd_tag *
|
|
mst_to_lst(struct m_snd_tag *mst)
|
|
{
|
|
|
|
return (__containerof(mst, struct lagg_snd_tag, com));
|
|
}
|
|
|
|
/*
|
|
* Look up the port used by a specific flow. This only works for lagg
|
|
* protocols with deterministic port mappings (e.g. not roundrobin).
|
|
* In addition protocols which use a hash to map flows to ports must
|
|
* be configured to use the mbuf flowid rather than hashing packet
|
|
* contents.
|
|
*/
|
|
static struct lagg_port *
|
|
lookup_snd_tag_port(struct ifnet *ifp, uint32_t flowid, uint32_t flowtype,
|
|
uint8_t numa_domain)
|
|
{
|
|
struct lagg_softc *sc;
|
|
struct lagg_port *lp;
|
|
struct lagg_lb *lb;
|
|
uint32_t hash, p;
|
|
int err;
|
|
|
|
sc = ifp->if_softc;
|
|
|
|
switch (sc->sc_proto) {
|
|
case LAGG_PROTO_FAILOVER:
|
|
return (lagg_link_active(sc, sc->sc_primary));
|
|
case LAGG_PROTO_LOADBALANCE:
|
|
if ((sc->sc_opts & LAGG_OPT_USE_FLOWID) == 0 ||
|
|
flowtype == M_HASHTYPE_NONE)
|
|
return (NULL);
|
|
p = flowid >> sc->flowid_shift;
|
|
p %= sc->sc_count;
|
|
lb = (struct lagg_lb *)sc->sc_psc;
|
|
lp = lb->lb_ports[p];
|
|
return (lagg_link_active(sc, lp));
|
|
case LAGG_PROTO_LACP:
|
|
if ((sc->sc_opts & LAGG_OPT_USE_FLOWID) == 0 ||
|
|
flowtype == M_HASHTYPE_NONE)
|
|
return (NULL);
|
|
hash = flowid >> sc->flowid_shift;
|
|
return (lacp_select_tx_port_by_hash(sc, hash, numa_domain, &err));
|
|
default:
|
|
return (NULL);
|
|
}
|
|
}
|
|
|
|
static int
|
|
lagg_snd_tag_alloc(struct ifnet *ifp,
|
|
union if_snd_tag_alloc_params *params,
|
|
struct m_snd_tag **ppmt)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_snd_tag *lst;
|
|
struct lagg_softc *sc;
|
|
struct lagg_port *lp;
|
|
struct ifnet *lp_ifp;
|
|
int error;
|
|
|
|
sc = ifp->if_softc;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
lp = lookup_snd_tag_port(ifp, params->hdr.flowid,
|
|
params->hdr.flowtype, params->hdr.numa_domain);
|
|
if (lp == NULL) {
|
|
NET_EPOCH_EXIT(et);
|
|
return (EOPNOTSUPP);
|
|
}
|
|
if (lp->lp_ifp == NULL) {
|
|
NET_EPOCH_EXIT(et);
|
|
return (EOPNOTSUPP);
|
|
}
|
|
lp_ifp = lp->lp_ifp;
|
|
if_ref(lp_ifp);
|
|
NET_EPOCH_EXIT(et);
|
|
|
|
lst = malloc(sizeof(*lst), M_LAGG, M_NOWAIT);
|
|
if (lst == NULL) {
|
|
if_rele(lp_ifp);
|
|
return (ENOMEM);
|
|
}
|
|
|
|
error = m_snd_tag_alloc(lp_ifp, params, &lst->tag);
|
|
if_rele(lp_ifp);
|
|
if (error) {
|
|
free(lst, M_LAGG);
|
|
return (error);
|
|
}
|
|
|
|
m_snd_tag_init(&lst->com, ifp, lst->tag->type);
|
|
|
|
*ppmt = &lst->com;
|
|
return (0);
|
|
}
|
|
|
|
static struct m_snd_tag *
|
|
lagg_next_snd_tag(struct m_snd_tag *mst)
|
|
{
|
|
struct lagg_snd_tag *lst;
|
|
|
|
lst = mst_to_lst(mst);
|
|
return (lst->tag);
|
|
}
|
|
|
|
static int
|
|
lagg_snd_tag_modify(struct m_snd_tag *mst,
|
|
union if_snd_tag_modify_params *params)
|
|
{
|
|
struct lagg_snd_tag *lst;
|
|
|
|
lst = mst_to_lst(mst);
|
|
return (lst->tag->ifp->if_snd_tag_modify(lst->tag, params));
|
|
}
|
|
|
|
static int
|
|
lagg_snd_tag_query(struct m_snd_tag *mst,
|
|
union if_snd_tag_query_params *params)
|
|
{
|
|
struct lagg_snd_tag *lst;
|
|
|
|
lst = mst_to_lst(mst);
|
|
return (lst->tag->ifp->if_snd_tag_query(lst->tag, params));
|
|
}
|
|
|
|
static void
|
|
lagg_snd_tag_free(struct m_snd_tag *mst)
|
|
{
|
|
struct lagg_snd_tag *lst;
|
|
|
|
lst = mst_to_lst(mst);
|
|
m_snd_tag_rele(lst->tag);
|
|
free(lst, M_LAGG);
|
|
}
|
|
|
|
static void
|
|
lagg_ratelimit_query(struct ifnet *ifp __unused, struct if_ratelimit_query_results *q)
|
|
{
|
|
/*
|
|
* For lagg, we have an indirect
|
|
* interface. The caller needs to
|
|
* get a ratelimit tag on the actual
|
|
* interface the flow will go on.
|
|
*/
|
|
q->rate_table = NULL;
|
|
q->flags = RT_IS_INDIRECT;
|
|
q->max_flows = 0;
|
|
q->number_of_rates = 0;
|
|
}
|
|
#endif
|
|
|
|
static int
|
|
lagg_setmulti(struct lagg_port *lp)
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
struct ifnet *ifp = lp->lp_ifp;
|
|
struct ifnet *scifp = sc->sc_ifp;
|
|
struct lagg_mc *mc;
|
|
struct ifmultiaddr *ifma;
|
|
int error;
|
|
|
|
IF_ADDR_WLOCK(scifp);
|
|
CK_STAILQ_FOREACH(ifma, &scifp->if_multiaddrs, ifma_link) {
|
|
if (ifma->ifma_addr->sa_family != AF_LINK)
|
|
continue;
|
|
mc = malloc(sizeof(struct lagg_mc), M_LAGG, M_NOWAIT);
|
|
if (mc == NULL) {
|
|
IF_ADDR_WUNLOCK(scifp);
|
|
return (ENOMEM);
|
|
}
|
|
bcopy(ifma->ifma_addr, &mc->mc_addr,
|
|
ifma->ifma_addr->sa_len);
|
|
mc->mc_addr.sdl_index = ifp->if_index;
|
|
mc->mc_ifma = NULL;
|
|
SLIST_INSERT_HEAD(&lp->lp_mc_head, mc, mc_entries);
|
|
}
|
|
IF_ADDR_WUNLOCK(scifp);
|
|
SLIST_FOREACH (mc, &lp->lp_mc_head, mc_entries) {
|
|
error = if_addmulti(ifp,
|
|
(struct sockaddr *)&mc->mc_addr, &mc->mc_ifma);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
lagg_clrmulti(struct lagg_port *lp)
|
|
{
|
|
struct lagg_mc *mc;
|
|
|
|
LAGG_XLOCK_ASSERT(lp->lp_softc);
|
|
while ((mc = SLIST_FIRST(&lp->lp_mc_head)) != NULL) {
|
|
SLIST_REMOVE(&lp->lp_mc_head, mc, lagg_mc, mc_entries);
|
|
if (mc->mc_ifma && lp->lp_detaching == 0)
|
|
if_delmulti_ifma(mc->mc_ifma);
|
|
free(mc, M_LAGG);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
lagg_setcaps(struct lagg_port *lp, int cap)
|
|
{
|
|
struct ifreq ifr;
|
|
|
|
if (lp->lp_ifp->if_capenable == cap)
|
|
return (0);
|
|
if (lp->lp_ioctl == NULL)
|
|
return (ENXIO);
|
|
ifr.ifr_reqcap = cap;
|
|
return ((*lp->lp_ioctl)(lp->lp_ifp, SIOCSIFCAP, (caddr_t)&ifr));
|
|
}
|
|
|
|
/* Handle a ref counted flag that should be set on the lagg port as well */
|
|
static int
|
|
lagg_setflag(struct lagg_port *lp, int flag, int status,
|
|
int (*func)(struct ifnet *, int))
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
struct ifnet *scifp = sc->sc_ifp;
|
|
struct ifnet *ifp = lp->lp_ifp;
|
|
int error;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
status = status ? (scifp->if_flags & flag) : 0;
|
|
/* Now "status" contains the flag value or 0 */
|
|
|
|
/*
|
|
* See if recorded ports status is different from what
|
|
* we want it to be. If it is, flip it. We record ports
|
|
* status in lp_ifflags so that we won't clear ports flag
|
|
* we haven't set. In fact, we don't clear or set ports
|
|
* flags directly, but get or release references to them.
|
|
* That's why we can be sure that recorded flags still are
|
|
* in accord with actual ports flags.
|
|
*/
|
|
if (status != (lp->lp_ifflags & flag)) {
|
|
error = (*func)(ifp, status);
|
|
if (error)
|
|
return (error);
|
|
lp->lp_ifflags &= ~flag;
|
|
lp->lp_ifflags |= status;
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
/*
|
|
* Handle IFF_* flags that require certain changes on the lagg port
|
|
* if "status" is true, update ports flags respective to the lagg
|
|
* if "status" is false, forcedly clear the flags set on port.
|
|
*/
|
|
static int
|
|
lagg_setflags(struct lagg_port *lp, int status)
|
|
{
|
|
int error, i;
|
|
|
|
for (i = 0; lagg_pflags[i].flag; i++) {
|
|
error = lagg_setflag(lp, lagg_pflags[i].flag,
|
|
status, lagg_pflags[i].func);
|
|
if (error)
|
|
return (error);
|
|
}
|
|
return (0);
|
|
}
|
|
|
|
static int
|
|
lagg_transmit_ethernet(struct ifnet *ifp, struct mbuf *m)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
int error;
|
|
|
|
#if defined(KERN_TLS) || defined(RATELIMIT)
|
|
if (m->m_pkthdr.csum_flags & CSUM_SND_TAG)
|
|
MPASS(m->m_pkthdr.snd_tag->ifp == ifp);
|
|
#endif
|
|
NET_EPOCH_ENTER(et);
|
|
/* We need a Tx algorithm and at least one port */
|
|
if (sc->sc_proto == LAGG_PROTO_NONE || sc->sc_count == 0) {
|
|
NET_EPOCH_EXIT(et);
|
|
m_freem(m);
|
|
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
|
|
return (ENXIO);
|
|
}
|
|
|
|
ETHER_BPF_MTAP(ifp, m);
|
|
|
|
error = lagg_proto_start(sc, m);
|
|
NET_EPOCH_EXIT(et);
|
|
return (error);
|
|
}
|
|
|
|
static int
|
|
lagg_transmit_infiniband(struct ifnet *ifp, struct mbuf *m)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
int error;
|
|
|
|
#if defined(KERN_TLS) || defined(RATELIMIT)
|
|
if (m->m_pkthdr.csum_flags & CSUM_SND_TAG)
|
|
MPASS(m->m_pkthdr.snd_tag->ifp == ifp);
|
|
#endif
|
|
NET_EPOCH_ENTER(et);
|
|
/* We need a Tx algorithm and at least one port */
|
|
if (sc->sc_proto == LAGG_PROTO_NONE || sc->sc_count == 0) {
|
|
NET_EPOCH_EXIT(et);
|
|
m_freem(m);
|
|
if_inc_counter(ifp, IFCOUNTER_OERRORS, 1);
|
|
return (ENXIO);
|
|
}
|
|
|
|
INFINIBAND_BPF_MTAP(ifp, m);
|
|
|
|
error = lagg_proto_start(sc, m);
|
|
NET_EPOCH_EXIT(et);
|
|
return (error);
|
|
}
|
|
|
|
/*
|
|
* The ifp->if_qflush entry point for lagg(4) is no-op.
|
|
*/
|
|
static void
|
|
lagg_qflush(struct ifnet *ifp __unused)
|
|
{
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_input_ethernet(struct ifnet *ifp, struct mbuf *m)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_port *lp = ifp->if_lagg;
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
struct ifnet *scifp = sc->sc_ifp;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
if ((scifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
|
|
lp->lp_detaching != 0 ||
|
|
sc->sc_proto == LAGG_PROTO_NONE) {
|
|
NET_EPOCH_EXIT(et);
|
|
m_freem(m);
|
|
return (NULL);
|
|
}
|
|
|
|
ETHER_BPF_MTAP(scifp, m);
|
|
|
|
m = lagg_proto_input(sc, lp, m);
|
|
if (m != NULL && (scifp->if_flags & IFF_MONITOR) != 0) {
|
|
m_freem(m);
|
|
m = NULL;
|
|
}
|
|
|
|
NET_EPOCH_EXIT(et);
|
|
return (m);
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_input_infiniband(struct ifnet *ifp, struct mbuf *m)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_port *lp = ifp->if_lagg;
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
struct ifnet *scifp = sc->sc_ifp;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
if ((scifp->if_drv_flags & IFF_DRV_RUNNING) == 0 ||
|
|
lp->lp_detaching != 0 ||
|
|
sc->sc_proto == LAGG_PROTO_NONE) {
|
|
NET_EPOCH_EXIT(et);
|
|
m_freem(m);
|
|
return (NULL);
|
|
}
|
|
|
|
INFINIBAND_BPF_MTAP(scifp, m);
|
|
|
|
m = lagg_proto_input(sc, lp, m);
|
|
if (m != NULL && (scifp->if_flags & IFF_MONITOR) != 0) {
|
|
m_freem(m);
|
|
m = NULL;
|
|
}
|
|
|
|
NET_EPOCH_EXIT(et);
|
|
return (m);
|
|
}
|
|
|
|
static int
|
|
lagg_media_change(struct ifnet *ifp)
|
|
{
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
|
|
if (sc->sc_ifflags & IFF_DEBUG)
|
|
printf("%s\n", __func__);
|
|
|
|
/* Ignore */
|
|
return (0);
|
|
}
|
|
|
|
static void
|
|
lagg_media_status(struct ifnet *ifp, struct ifmediareq *imr)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_softc *sc = (struct lagg_softc *)ifp->if_softc;
|
|
struct lagg_port *lp;
|
|
|
|
imr->ifm_status = IFM_AVALID;
|
|
imr->ifm_active = IFM_ETHER | IFM_AUTO;
|
|
|
|
NET_EPOCH_ENTER(et);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (LAGG_PORTACTIVE(lp))
|
|
imr->ifm_status |= IFM_ACTIVE;
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
}
|
|
|
|
static void
|
|
lagg_linkstate(struct lagg_softc *sc)
|
|
{
|
|
struct epoch_tracker et;
|
|
struct lagg_port *lp;
|
|
int new_link = LINK_STATE_DOWN;
|
|
uint64_t speed;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
|
|
/* LACP handles link state itself */
|
|
if (sc->sc_proto == LAGG_PROTO_LACP)
|
|
return;
|
|
|
|
/* Our link is considered up if at least one of our ports is active */
|
|
NET_EPOCH_ENTER(et);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (lp->lp_ifp->if_link_state == LINK_STATE_UP) {
|
|
new_link = LINK_STATE_UP;
|
|
break;
|
|
}
|
|
}
|
|
NET_EPOCH_EXIT(et);
|
|
if_link_state_change(sc->sc_ifp, new_link);
|
|
|
|
/* Update if_baudrate to reflect the max possible speed */
|
|
switch (sc->sc_proto) {
|
|
case LAGG_PROTO_FAILOVER:
|
|
sc->sc_ifp->if_baudrate = sc->sc_primary != NULL ?
|
|
sc->sc_primary->lp_ifp->if_baudrate : 0;
|
|
break;
|
|
case LAGG_PROTO_ROUNDROBIN:
|
|
case LAGG_PROTO_LOADBALANCE:
|
|
case LAGG_PROTO_BROADCAST:
|
|
speed = 0;
|
|
NET_EPOCH_ENTER(et);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
speed += lp->lp_ifp->if_baudrate;
|
|
NET_EPOCH_EXIT(et);
|
|
sc->sc_ifp->if_baudrate = speed;
|
|
break;
|
|
case LAGG_PROTO_LACP:
|
|
/* LACP updates if_baudrate itself */
|
|
break;
|
|
}
|
|
}
|
|
|
|
static void
|
|
lagg_port_state(struct ifnet *ifp, int state)
|
|
{
|
|
struct lagg_port *lp = (struct lagg_port *)ifp->if_lagg;
|
|
struct lagg_softc *sc = NULL;
|
|
|
|
if (lp != NULL)
|
|
sc = lp->lp_softc;
|
|
if (sc == NULL)
|
|
return;
|
|
|
|
LAGG_XLOCK(sc);
|
|
lagg_linkstate(sc);
|
|
lagg_proto_linkstate(sc, lp);
|
|
LAGG_XUNLOCK(sc);
|
|
}
|
|
|
|
struct lagg_port *
|
|
lagg_link_active(struct lagg_softc *sc, struct lagg_port *lp)
|
|
{
|
|
struct lagg_port *lp_next, *rval = NULL;
|
|
|
|
/*
|
|
* Search a port which reports an active link state.
|
|
*/
|
|
|
|
#ifdef INVARIANTS
|
|
/*
|
|
* This is called with either in the network epoch
|
|
* or with LAGG_XLOCK(sc) held.
|
|
*/
|
|
if (!in_epoch(net_epoch_preempt))
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
#endif
|
|
|
|
if (lp == NULL)
|
|
goto search;
|
|
if (LAGG_PORTACTIVE(lp)) {
|
|
rval = lp;
|
|
goto found;
|
|
}
|
|
if ((lp_next = CK_SLIST_NEXT(lp, lp_entries)) != NULL &&
|
|
LAGG_PORTACTIVE(lp_next)) {
|
|
rval = lp_next;
|
|
goto found;
|
|
}
|
|
|
|
search:
|
|
CK_SLIST_FOREACH(lp_next, &sc->sc_ports, lp_entries) {
|
|
if (LAGG_PORTACTIVE(lp_next)) {
|
|
return (lp_next);
|
|
}
|
|
}
|
|
found:
|
|
return (rval);
|
|
}
|
|
|
|
int
|
|
lagg_enqueue(struct ifnet *ifp, struct mbuf *m)
|
|
{
|
|
|
|
#if defined(KERN_TLS) || defined(RATELIMIT)
|
|
if (m->m_pkthdr.csum_flags & CSUM_SND_TAG) {
|
|
struct lagg_snd_tag *lst;
|
|
struct m_snd_tag *mst;
|
|
|
|
mst = m->m_pkthdr.snd_tag;
|
|
lst = mst_to_lst(mst);
|
|
if (lst->tag->ifp != ifp) {
|
|
m_freem(m);
|
|
return (EAGAIN);
|
|
}
|
|
m->m_pkthdr.snd_tag = m_snd_tag_ref(lst->tag);
|
|
m_snd_tag_rele(mst);
|
|
}
|
|
#endif
|
|
return (ifp->if_transmit)(ifp, m);
|
|
}
|
|
|
|
/*
|
|
* Simple round robin aggregation
|
|
*/
|
|
static void
|
|
lagg_rr_attach(struct lagg_softc *sc)
|
|
{
|
|
sc->sc_seq = 0;
|
|
sc->sc_stride = 1;
|
|
}
|
|
|
|
static int
|
|
lagg_rr_start(struct lagg_softc *sc, struct mbuf *m)
|
|
{
|
|
struct lagg_port *lp;
|
|
uint32_t p;
|
|
|
|
p = atomic_fetchadd_32(&sc->sc_seq, 1);
|
|
p /= sc->sc_stride;
|
|
p %= sc->sc_count;
|
|
lp = CK_SLIST_FIRST(&sc->sc_ports);
|
|
|
|
while (p--)
|
|
lp = CK_SLIST_NEXT(lp, lp_entries);
|
|
|
|
/*
|
|
* Check the port's link state. This will return the next active
|
|
* port if the link is down or the port is NULL.
|
|
*/
|
|
if ((lp = lagg_link_active(sc, lp)) == NULL) {
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, 1);
|
|
m_freem(m);
|
|
return (ENETDOWN);
|
|
}
|
|
|
|
/* Send mbuf */
|
|
return (lagg_enqueue(lp->lp_ifp, m));
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_rr_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
/* Just pass in the packet to our lagg device */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
|
|
return (m);
|
|
}
|
|
|
|
/*
|
|
* Broadcast mode
|
|
*/
|
|
static int
|
|
lagg_bcast_start(struct lagg_softc *sc, struct mbuf *m)
|
|
{
|
|
int active_ports = 0;
|
|
int errors = 0;
|
|
int ret;
|
|
struct lagg_port *lp, *last = NULL;
|
|
struct mbuf *m0;
|
|
|
|
NET_EPOCH_ASSERT();
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries) {
|
|
if (!LAGG_PORTACTIVE(lp))
|
|
continue;
|
|
|
|
active_ports++;
|
|
|
|
if (last != NULL) {
|
|
m0 = m_copym(m, 0, M_COPYALL, M_NOWAIT);
|
|
if (m0 == NULL) {
|
|
ret = ENOBUFS;
|
|
errors++;
|
|
break;
|
|
}
|
|
lagg_enqueue(last->lp_ifp, m0);
|
|
}
|
|
last = lp;
|
|
}
|
|
|
|
if (last == NULL) {
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, 1);
|
|
m_freem(m);
|
|
return (ENOENT);
|
|
}
|
|
if ((last = lagg_link_active(sc, last)) == NULL) {
|
|
errors++;
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, errors);
|
|
m_freem(m);
|
|
return (ENETDOWN);
|
|
}
|
|
|
|
ret = lagg_enqueue(last->lp_ifp, m);
|
|
if (errors != 0)
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, errors);
|
|
|
|
return (ret);
|
|
}
|
|
|
|
static struct mbuf*
|
|
lagg_bcast_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
/* Just pass in the packet to our lagg device */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
return (m);
|
|
}
|
|
|
|
/*
|
|
* Active failover
|
|
*/
|
|
static int
|
|
lagg_fail_start(struct lagg_softc *sc, struct mbuf *m)
|
|
{
|
|
struct lagg_port *lp;
|
|
|
|
/* Use the master port if active or the next available port */
|
|
if ((lp = lagg_link_active(sc, sc->sc_primary)) == NULL) {
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, 1);
|
|
m_freem(m);
|
|
return (ENETDOWN);
|
|
}
|
|
|
|
/* Send mbuf */
|
|
return (lagg_enqueue(lp->lp_ifp, m));
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_fail_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct lagg_port *tmp_tp;
|
|
|
|
if (lp == sc->sc_primary || V_lagg_failover_rx_all) {
|
|
m->m_pkthdr.rcvif = ifp;
|
|
return (m);
|
|
}
|
|
|
|
if (!LAGG_PORTACTIVE(sc->sc_primary)) {
|
|
tmp_tp = lagg_link_active(sc, sc->sc_primary);
|
|
/*
|
|
* If tmp_tp is null, we've received a packet when all
|
|
* our links are down. Weird, but process it anyways.
|
|
*/
|
|
if ((tmp_tp == NULL || tmp_tp == lp)) {
|
|
m->m_pkthdr.rcvif = ifp;
|
|
return (m);
|
|
}
|
|
}
|
|
|
|
m_freem(m);
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* Loadbalancing
|
|
*/
|
|
static void
|
|
lagg_lb_attach(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_port *lp;
|
|
struct lagg_lb *lb;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
lb = malloc(sizeof(struct lagg_lb), M_LAGG, M_WAITOK | M_ZERO);
|
|
lb->lb_key = m_ether_tcpip_hash_init();
|
|
sc->sc_psc = lb;
|
|
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
lagg_lb_port_create(lp);
|
|
}
|
|
|
|
static void
|
|
lagg_lb_detach(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_lb *lb;
|
|
|
|
lb = (struct lagg_lb *)sc->sc_psc;
|
|
if (lb != NULL)
|
|
free(lb, M_LAGG);
|
|
}
|
|
|
|
static int
|
|
lagg_lb_porttable(struct lagg_softc *sc, struct lagg_port *lp)
|
|
{
|
|
struct lagg_lb *lb = (struct lagg_lb *)sc->sc_psc;
|
|
struct lagg_port *lp_next;
|
|
int i = 0, rv;
|
|
|
|
rv = 0;
|
|
bzero(&lb->lb_ports, sizeof(lb->lb_ports));
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
CK_SLIST_FOREACH(lp_next, &sc->sc_ports, lp_entries) {
|
|
if (lp_next == lp)
|
|
continue;
|
|
if (i >= LAGG_MAX_PORTS) {
|
|
rv = EINVAL;
|
|
break;
|
|
}
|
|
if (sc->sc_ifflags & IFF_DEBUG)
|
|
printf("%s: port %s at index %d\n",
|
|
sc->sc_ifname, lp_next->lp_ifp->if_xname, i);
|
|
lb->lb_ports[i++] = lp_next;
|
|
}
|
|
|
|
return (rv);
|
|
}
|
|
|
|
static int
|
|
lagg_lb_port_create(struct lagg_port *lp)
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
return (lagg_lb_porttable(sc, NULL));
|
|
}
|
|
|
|
static void
|
|
lagg_lb_port_destroy(struct lagg_port *lp)
|
|
{
|
|
struct lagg_softc *sc = lp->lp_softc;
|
|
lagg_lb_porttable(sc, lp);
|
|
}
|
|
|
|
static int
|
|
lagg_lb_start(struct lagg_softc *sc, struct mbuf *m)
|
|
{
|
|
struct lagg_lb *lb = (struct lagg_lb *)sc->sc_psc;
|
|
struct lagg_port *lp = NULL;
|
|
uint32_t p = 0;
|
|
|
|
if ((sc->sc_opts & LAGG_OPT_USE_FLOWID) &&
|
|
M_HASHTYPE_GET(m) != M_HASHTYPE_NONE)
|
|
p = m->m_pkthdr.flowid >> sc->flowid_shift;
|
|
else
|
|
p = m_ether_tcpip_hash(sc->sc_flags, m, lb->lb_key);
|
|
p %= sc->sc_count;
|
|
lp = lb->lb_ports[p];
|
|
|
|
/*
|
|
* Check the port's link state. This will return the next active
|
|
* port if the link is down or the port is NULL.
|
|
*/
|
|
if ((lp = lagg_link_active(sc, lp)) == NULL) {
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, 1);
|
|
m_freem(m);
|
|
return (ENETDOWN);
|
|
}
|
|
|
|
/* Send mbuf */
|
|
return (lagg_enqueue(lp->lp_ifp, m));
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_lb_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
|
|
/* Just pass in the packet to our lagg device */
|
|
m->m_pkthdr.rcvif = ifp;
|
|
|
|
return (m);
|
|
}
|
|
|
|
/*
|
|
* 802.3ad LACP
|
|
*/
|
|
static void
|
|
lagg_lacp_attach(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_port *lp;
|
|
|
|
lacp_attach(sc);
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
lacp_port_create(lp);
|
|
}
|
|
|
|
static void
|
|
lagg_lacp_detach(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_port *lp;
|
|
void *psc;
|
|
|
|
LAGG_XLOCK_ASSERT(sc);
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
lacp_port_destroy(lp);
|
|
|
|
psc = sc->sc_psc;
|
|
sc->sc_psc = NULL;
|
|
lacp_detach(psc);
|
|
}
|
|
|
|
static void
|
|
lagg_lacp_lladdr(struct lagg_softc *sc)
|
|
{
|
|
struct lagg_port *lp;
|
|
|
|
LAGG_SXLOCK_ASSERT(sc);
|
|
|
|
/* purge all the lacp ports */
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
lacp_port_destroy(lp);
|
|
|
|
/* add them back in */
|
|
CK_SLIST_FOREACH(lp, &sc->sc_ports, lp_entries)
|
|
lacp_port_create(lp);
|
|
}
|
|
|
|
static int
|
|
lagg_lacp_start(struct lagg_softc *sc, struct mbuf *m)
|
|
{
|
|
struct lagg_port *lp;
|
|
int err;
|
|
|
|
lp = lacp_select_tx_port(sc, m, &err);
|
|
if (lp == NULL) {
|
|
if_inc_counter(sc->sc_ifp, IFCOUNTER_OERRORS, 1);
|
|
m_freem(m);
|
|
return (err);
|
|
}
|
|
|
|
/* Send mbuf */
|
|
return (lagg_enqueue(lp->lp_ifp, m));
|
|
}
|
|
|
|
static struct mbuf *
|
|
lagg_lacp_input(struct lagg_softc *sc, struct lagg_port *lp, struct mbuf *m)
|
|
{
|
|
struct ifnet *ifp = sc->sc_ifp;
|
|
struct ether_header *eh;
|
|
u_short etype;
|
|
|
|
eh = mtod(m, struct ether_header *);
|
|
etype = ntohs(eh->ether_type);
|
|
|
|
/* Tap off LACP control messages */
|
|
if ((m->m_flags & M_VLANTAG) == 0 && etype == ETHERTYPE_SLOW) {
|
|
m = lacp_input(lp, m);
|
|
if (m == NULL)
|
|
return (NULL);
|
|
}
|
|
|
|
/*
|
|
* If the port is not collecting or not in the active aggregator then
|
|
* free and return.
|
|
*/
|
|
if (lacp_iscollecting(lp) == 0 || lacp_isactive(lp) == 0) {
|
|
m_freem(m);
|
|
return (NULL);
|
|
}
|
|
|
|
m->m_pkthdr.rcvif = ifp;
|
|
return (m);
|
|
}
|