2216 lines
54 KiB
C
2216 lines
54 KiB
C
/* $NetBSD: ieee8023ad_lacp.c,v 1.3 2005/12/11 12:24:54 christos Exp $ */
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/*-
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* SPDX-License-Identifier: BSD-2-Clause
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*
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* Copyright (c)2005 YAMAMOTO Takashi,
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* Copyright (c)2008 Andrew Thompson <thompsa@FreeBSD.org>
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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* 1. Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* 2. Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in the
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* documentation and/or other materials provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND
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* ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE
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* FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL
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* DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS
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* OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION)
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* HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT
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* LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY
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* OUT 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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#include <sys/cdefs.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/callout.h>
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#include <sys/eventhandler.h>
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#include <sys/mbuf.h>
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#include <sys/systm.h>
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#include <sys/malloc.h>
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#include <sys/kernel.h> /* hz */
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#include <sys/socket.h> /* for net/if.h */
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#include <sys/sockio.h>
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#include <sys/sysctl.h>
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#include <machine/stdarg.h>
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#include <sys/lock.h>
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#include <sys/rwlock.h>
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#include <sys/taskqueue.h>
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#include <sys/time.h>
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#include <net/if.h>
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#include <net/if_var.h>
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#include <net/if_private.h>
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#include <net/if_dl.h>
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#include <net/ethernet.h>
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#include <net/infiniband.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_lagg.h>
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#include <net/ieee8023ad_lacp.h>
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/*
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* actor system priority and port priority.
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* XXX should be configurable.
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*/
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#define LACP_SYSTEM_PRIO 0x8000
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#define LACP_PORT_PRIO 0x8000
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const uint8_t ethermulticastaddr_slowprotocols[ETHER_ADDR_LEN] =
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{ 0x01, 0x80, 0xc2, 0x00, 0x00, 0x02 };
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static const struct tlv_template lacp_info_tlv_template[] = {
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{ LACP_TYPE_ACTORINFO,
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sizeof(struct tlvhdr) + sizeof(struct lacp_peerinfo) },
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{ LACP_TYPE_PARTNERINFO,
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sizeof(struct tlvhdr) + sizeof(struct lacp_peerinfo) },
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{ LACP_TYPE_COLLECTORINFO,
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sizeof(struct tlvhdr) + sizeof(struct lacp_collectorinfo) },
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{ 0, 0 },
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};
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static const struct tlv_template marker_info_tlv_template[] = {
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{ MARKER_TYPE_INFO,
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sizeof(struct tlvhdr) + sizeof(struct lacp_markerinfo) },
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{ 0, 0 },
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};
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static const struct tlv_template marker_response_tlv_template[] = {
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{ MARKER_TYPE_RESPONSE,
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sizeof(struct tlvhdr) + sizeof(struct lacp_markerinfo) },
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{ 0, 0 },
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};
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typedef void (*lacp_timer_func_t)(struct lacp_port *);
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static void lacp_fill_actorinfo(struct lacp_port *, struct lacp_peerinfo *);
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static void lacp_fill_markerinfo(struct lacp_port *,
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struct lacp_markerinfo *);
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static uint64_t lacp_aggregator_bandwidth(struct lacp_aggregator *);
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static void lacp_suppress_distributing(struct lacp_softc *,
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struct lacp_aggregator *);
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static void lacp_transit_expire(void *);
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static void lacp_update_portmap(struct lacp_softc *);
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static void lacp_select_active_aggregator(struct lacp_softc *);
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static uint16_t lacp_compose_key(struct lacp_port *);
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static int tlv_check(const void *, size_t, const struct tlvhdr *,
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const struct tlv_template *, boolean_t);
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static void lacp_tick(void *);
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static void lacp_fill_aggregator_id(struct lacp_aggregator *,
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const struct lacp_port *);
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static void lacp_fill_aggregator_id_peer(struct lacp_peerinfo *,
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const struct lacp_peerinfo *);
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static bool lacp_aggregator_is_compatible(const struct lacp_aggregator *,
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const struct lacp_port *);
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static bool lacp_peerinfo_is_compatible(const struct lacp_peerinfo *,
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const struct lacp_peerinfo *);
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static struct lacp_aggregator *lacp_aggregator_get(struct lacp_softc *,
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struct lacp_port *);
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static void lacp_aggregator_addref(struct lacp_softc *,
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struct lacp_aggregator *);
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static void lacp_aggregator_delref(struct lacp_softc *,
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struct lacp_aggregator *);
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/* receive machine */
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static int lacp_pdu_input(struct lacp_port *, struct mbuf *);
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static int lacp_marker_input(struct lacp_port *, struct mbuf *);
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static void lacp_sm_rx(struct lacp_port *, const struct lacpdu *);
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static void lacp_sm_rx_timer(struct lacp_port *);
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static void lacp_sm_rx_set_expired(struct lacp_port *);
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static void lacp_sm_rx_update_ntt(struct lacp_port *,
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const struct lacpdu *);
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static void lacp_sm_rx_record_pdu(struct lacp_port *,
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const struct lacpdu *);
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static void lacp_sm_rx_update_selected(struct lacp_port *,
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const struct lacpdu *);
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static void lacp_sm_rx_record_default(struct lacp_port *);
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static void lacp_sm_rx_update_default_selected(struct lacp_port *);
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static void lacp_sm_rx_update_selected_from_peerinfo(struct lacp_port *,
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const struct lacp_peerinfo *);
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/* mux machine */
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static void lacp_sm_mux(struct lacp_port *);
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static void lacp_set_mux(struct lacp_port *, enum lacp_mux_state);
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static void lacp_sm_mux_timer(struct lacp_port *);
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/* periodic transmit machine */
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static void lacp_sm_ptx_update_timeout(struct lacp_port *, uint8_t);
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static void lacp_sm_ptx_tx_schedule(struct lacp_port *);
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static void lacp_sm_ptx_timer(struct lacp_port *);
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/* transmit machine */
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static void lacp_sm_tx(struct lacp_port *);
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static void lacp_sm_assert_ntt(struct lacp_port *);
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static void lacp_run_timers(struct lacp_port *);
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static int lacp_compare_peerinfo(const struct lacp_peerinfo *,
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const struct lacp_peerinfo *);
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static int lacp_compare_systemid(const struct lacp_systemid *,
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const struct lacp_systemid *);
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static void lacp_port_enable(struct lacp_port *);
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static void lacp_port_disable(struct lacp_port *);
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static void lacp_select(struct lacp_port *);
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static void lacp_unselect(struct lacp_port *);
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static void lacp_disable_collecting(struct lacp_port *);
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static void lacp_enable_collecting(struct lacp_port *);
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static void lacp_disable_distributing(struct lacp_port *);
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static void lacp_enable_distributing(struct lacp_port *);
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static int lacp_xmit_lacpdu(struct lacp_port *);
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static int lacp_xmit_marker(struct lacp_port *);
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/* Debugging */
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static void lacp_dump_lacpdu(const struct lacpdu *);
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static const char *lacp_format_partner(const struct lacp_peerinfo *, char *,
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size_t);
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static const char *lacp_format_lagid(const struct lacp_peerinfo *,
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const struct lacp_peerinfo *, char *, size_t);
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static const char *lacp_format_lagid_aggregator(const struct lacp_aggregator *,
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char *, size_t);
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static const char *lacp_format_state(uint8_t, char *, size_t);
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static const char *lacp_format_mac(const uint8_t *, char *, size_t);
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static const char *lacp_format_systemid(const struct lacp_systemid *, char *,
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size_t);
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static const char *lacp_format_portid(const struct lacp_portid *, char *,
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size_t);
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static void lacp_dprintf(const struct lacp_port *, const char *, ...)
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__attribute__((__format__(__printf__, 2, 3)));
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VNET_DEFINE_STATIC(int, lacp_debug);
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#define V_lacp_debug VNET(lacp_debug)
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SYSCTL_NODE(_net_link_lagg, OID_AUTO, lacp, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
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"ieee802.3ad");
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SYSCTL_INT(_net_link_lagg_lacp, OID_AUTO, debug, CTLFLAG_RWTUN | CTLFLAG_VNET,
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&VNET_NAME(lacp_debug), 0, "Enable LACP debug logging (1=debug, 2=trace)");
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VNET_DEFINE_STATIC(int, lacp_default_strict_mode) = 1;
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SYSCTL_INT(_net_link_lagg_lacp, OID_AUTO, default_strict_mode,
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CTLFLAG_RWTUN | CTLFLAG_VNET, &VNET_NAME(lacp_default_strict_mode), 0,
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"LACP strict protocol compliance default");
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#define LACP_DPRINTF(a) if (V_lacp_debug & 0x01) { lacp_dprintf a ; }
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#define LACP_TRACE(a) if (V_lacp_debug & 0x02) { lacp_dprintf(a,"%s\n",__func__); }
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#define LACP_TPRINTF(a) if (V_lacp_debug & 0x04) { lacp_dprintf a ; }
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/*
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* partner administration variables.
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* XXX should be configurable.
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*/
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static const struct lacp_peerinfo lacp_partner_admin_optimistic = {
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.lip_systemid = { .lsi_prio = 0xffff },
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.lip_portid = { .lpi_prio = 0xffff },
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.lip_state = LACP_STATE_SYNC | LACP_STATE_AGGREGATION |
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LACP_STATE_COLLECTING | LACP_STATE_DISTRIBUTING,
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};
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static const struct lacp_peerinfo lacp_partner_admin_strict = {
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.lip_systemid = { .lsi_prio = 0xffff },
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.lip_portid = { .lpi_prio = 0xffff },
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.lip_state = 0,
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};
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static const lacp_timer_func_t lacp_timer_funcs[LACP_NTIMER] = {
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[LACP_TIMER_CURRENT_WHILE] = lacp_sm_rx_timer,
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[LACP_TIMER_PERIODIC] = lacp_sm_ptx_timer,
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[LACP_TIMER_WAIT_WHILE] = lacp_sm_mux_timer,
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};
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struct mbuf *
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lacp_input(struct lagg_port *lgp, struct mbuf *m)
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{
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struct lacp_port *lp = LACP_PORT(lgp);
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uint8_t subtype;
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if (m->m_pkthdr.len < sizeof(struct ether_header) + sizeof(subtype)) {
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m_freem(m);
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return (NULL);
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}
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m_copydata(m, sizeof(struct ether_header), sizeof(subtype), &subtype);
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switch (subtype) {
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case SLOWPROTOCOLS_SUBTYPE_LACP:
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lacp_pdu_input(lp, m);
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return (NULL);
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case SLOWPROTOCOLS_SUBTYPE_MARKER:
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lacp_marker_input(lp, m);
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return (NULL);
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}
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/* Not a subtype we are interested in */
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return (m);
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}
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/*
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* lacp_pdu_input: process lacpdu
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*/
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static int
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lacp_pdu_input(struct lacp_port *lp, struct mbuf *m)
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{
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struct lacp_softc *lsc = lp->lp_lsc;
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struct lacpdu *du;
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int error = 0;
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if (m->m_pkthdr.len != sizeof(*du)) {
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goto bad;
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}
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if ((m->m_flags & M_MCAST) == 0) {
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goto bad;
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}
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if (m->m_len < sizeof(*du)) {
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m = m_pullup(m, sizeof(*du));
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if (m == NULL) {
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return (ENOMEM);
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}
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}
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du = mtod(m, struct lacpdu *);
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if (memcmp(&du->ldu_eh.ether_dhost,
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ðermulticastaddr_slowprotocols, ETHER_ADDR_LEN)) {
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goto bad;
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}
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/*
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* ignore the version for compatibility with
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* the future protocol revisions.
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*/
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#if 0
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if (du->ldu_sph.sph_version != 1) {
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goto bad;
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}
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#endif
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/*
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* ignore tlv types for compatibility with
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* the future protocol revisions.
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*/
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if (tlv_check(du, sizeof(*du), &du->ldu_tlv_actor,
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lacp_info_tlv_template, FALSE)) {
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goto bad;
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}
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if (V_lacp_debug > 0) {
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lacp_dprintf(lp, "lacpdu receive\n");
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lacp_dump_lacpdu(du);
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}
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if ((1 << lp->lp_ifp->if_dunit) & lp->lp_lsc->lsc_debug.lsc_rx_test) {
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LACP_TPRINTF((lp, "Dropping RX PDU\n"));
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goto bad;
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}
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LACP_LOCK(lsc);
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lacp_sm_rx(lp, du);
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LACP_UNLOCK(lsc);
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m_freem(m);
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return (error);
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bad:
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m_freem(m);
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return (EINVAL);
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}
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static void
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lacp_fill_actorinfo(struct lacp_port *lp, struct lacp_peerinfo *info)
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{
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struct lagg_port *lgp = lp->lp_lagg;
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struct lagg_softc *sc = lgp->lp_softc;
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info->lip_systemid.lsi_prio = htons(LACP_SYSTEM_PRIO);
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memcpy(&info->lip_systemid.lsi_mac,
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IF_LLADDR(sc->sc_ifp), ETHER_ADDR_LEN);
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info->lip_portid.lpi_prio = htons(LACP_PORT_PRIO);
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info->lip_portid.lpi_portno = htons(lp->lp_ifp->if_index);
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info->lip_state = lp->lp_state;
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}
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static void
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lacp_fill_markerinfo(struct lacp_port *lp, struct lacp_markerinfo *info)
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{
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struct ifnet *ifp = lp->lp_ifp;
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/* Fill in the port index and system id (encoded as the MAC) */
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info->mi_rq_port = htons(ifp->if_index);
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memcpy(&info->mi_rq_system, lp->lp_systemid.lsi_mac, ETHER_ADDR_LEN);
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info->mi_rq_xid = htonl(0);
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}
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static int
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lacp_xmit_lacpdu(struct lacp_port *lp)
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{
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struct lagg_port *lgp = lp->lp_lagg;
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struct mbuf *m;
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struct lacpdu *du;
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int error;
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LACP_LOCK_ASSERT(lp->lp_lsc);
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m = m_gethdr(M_NOWAIT, MT_DATA);
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if (m == NULL) {
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return (ENOMEM);
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}
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m->m_len = m->m_pkthdr.len = sizeof(*du);
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du = mtod(m, struct lacpdu *);
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memset(du, 0, sizeof(*du));
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memcpy(&du->ldu_eh.ether_dhost, ethermulticastaddr_slowprotocols,
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ETHER_ADDR_LEN);
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memcpy(&du->ldu_eh.ether_shost, lgp->lp_lladdr, ETHER_ADDR_LEN);
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du->ldu_eh.ether_type = htons(ETHERTYPE_SLOW);
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du->ldu_sph.sph_subtype = SLOWPROTOCOLS_SUBTYPE_LACP;
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du->ldu_sph.sph_version = 1;
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TLV_SET(&du->ldu_tlv_actor, LACP_TYPE_ACTORINFO, sizeof(du->ldu_actor));
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du->ldu_actor = lp->lp_actor;
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TLV_SET(&du->ldu_tlv_partner, LACP_TYPE_PARTNERINFO,
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sizeof(du->ldu_partner));
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du->ldu_partner = lp->lp_partner;
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TLV_SET(&du->ldu_tlv_collector, LACP_TYPE_COLLECTORINFO,
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sizeof(du->ldu_collector));
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du->ldu_collector.lci_maxdelay = 0;
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if (V_lacp_debug > 0) {
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lacp_dprintf(lp, "lacpdu transmit\n");
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lacp_dump_lacpdu(du);
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}
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m->m_flags |= M_MCAST;
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/*
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* XXX should use higher priority queue.
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* otherwise network congestion can break aggregation.
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*/
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error = lagg_enqueue(lp->lp_ifp, m);
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return (error);
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}
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static int
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lacp_xmit_marker(struct lacp_port *lp)
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{
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struct lagg_port *lgp = lp->lp_lagg;
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struct mbuf *m;
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struct markerdu *mdu;
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int error;
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LACP_LOCK_ASSERT(lp->lp_lsc);
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m = m_gethdr(M_NOWAIT, MT_DATA);
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if (m == NULL) {
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return (ENOMEM);
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}
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m->m_len = m->m_pkthdr.len = sizeof(*mdu);
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mdu = mtod(m, struct markerdu *);
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memset(mdu, 0, sizeof(*mdu));
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memcpy(&mdu->mdu_eh.ether_dhost, ethermulticastaddr_slowprotocols,
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ETHER_ADDR_LEN);
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memcpy(&mdu->mdu_eh.ether_shost, lgp->lp_lladdr, ETHER_ADDR_LEN);
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mdu->mdu_eh.ether_type = htons(ETHERTYPE_SLOW);
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mdu->mdu_sph.sph_subtype = SLOWPROTOCOLS_SUBTYPE_MARKER;
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mdu->mdu_sph.sph_version = 1;
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/* Bump the transaction id and copy over the marker info */
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lp->lp_marker.mi_rq_xid = htonl(ntohl(lp->lp_marker.mi_rq_xid) + 1);
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TLV_SET(&mdu->mdu_tlv, MARKER_TYPE_INFO, sizeof(mdu->mdu_info));
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mdu->mdu_info = lp->lp_marker;
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LACP_DPRINTF((lp, "marker transmit, port=%u, sys=%6D, id=%u\n",
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ntohs(mdu->mdu_info.mi_rq_port), mdu->mdu_info.mi_rq_system, ":",
|
|
ntohl(mdu->mdu_info.mi_rq_xid)));
|
|
|
|
m->m_flags |= M_MCAST;
|
|
error = lagg_enqueue(lp->lp_ifp, m);
|
|
return (error);
|
|
}
|
|
|
|
void
|
|
lacp_linkstate(struct lagg_port *lgp)
|
|
{
|
|
struct lacp_port *lp = LACP_PORT(lgp);
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct ifnet *ifp = lgp->lp_ifp;
|
|
struct ifmediareq ifmr;
|
|
int error = 0;
|
|
u_int media;
|
|
uint8_t old_state;
|
|
uint16_t old_key;
|
|
|
|
bzero((char *)&ifmr, sizeof(ifmr));
|
|
error = (*ifp->if_ioctl)(ifp, SIOCGIFXMEDIA, (caddr_t)&ifmr);
|
|
if (error != 0) {
|
|
bzero((char *)&ifmr, sizeof(ifmr));
|
|
error = (*ifp->if_ioctl)(ifp, SIOCGIFMEDIA, (caddr_t)&ifmr);
|
|
}
|
|
if (error != 0)
|
|
return;
|
|
|
|
LACP_LOCK(lsc);
|
|
media = ifmr.ifm_active;
|
|
LACP_DPRINTF((lp, "media changed 0x%x -> 0x%x, ether = %d, fdx = %d, "
|
|
"link = %d\n", lp->lp_media, media, IFM_TYPE(media) == IFM_ETHER,
|
|
(media & IFM_FDX) != 0, ifp->if_link_state == LINK_STATE_UP));
|
|
old_state = lp->lp_state;
|
|
old_key = lp->lp_key;
|
|
|
|
lp->lp_media = media;
|
|
/*
|
|
* If the port is not an active full duplex Ethernet link then it can
|
|
* not be aggregated.
|
|
*/
|
|
if (IFM_TYPE(media) != IFM_ETHER || (media & IFM_FDX) == 0 ||
|
|
ifp->if_link_state != LINK_STATE_UP) {
|
|
lacp_port_disable(lp);
|
|
} else {
|
|
lacp_port_enable(lp);
|
|
}
|
|
lp->lp_key = lacp_compose_key(lp);
|
|
|
|
if (old_state != lp->lp_state || old_key != lp->lp_key) {
|
|
LACP_DPRINTF((lp, "-> UNSELECTED\n"));
|
|
lp->lp_selected = LACP_UNSELECTED;
|
|
}
|
|
LACP_UNLOCK(lsc);
|
|
}
|
|
|
|
static void
|
|
lacp_tick(void *arg)
|
|
{
|
|
struct lacp_softc *lsc = arg;
|
|
struct lacp_port *lp;
|
|
|
|
LIST_FOREACH(lp, &lsc->lsc_ports, lp_next) {
|
|
if ((lp->lp_state & LACP_STATE_AGGREGATION) == 0)
|
|
continue;
|
|
|
|
CURVNET_SET(lp->lp_ifp->if_vnet);
|
|
lacp_run_timers(lp);
|
|
|
|
lacp_select(lp);
|
|
lacp_sm_mux(lp);
|
|
lacp_sm_tx(lp);
|
|
lacp_sm_ptx_tx_schedule(lp);
|
|
CURVNET_RESTORE();
|
|
}
|
|
callout_reset(&lsc->lsc_callout, hz, lacp_tick, lsc);
|
|
}
|
|
|
|
int
|
|
lacp_port_create(struct lagg_port *lgp)
|
|
{
|
|
struct lagg_softc *sc = lgp->lp_softc;
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
struct lacp_port *lp;
|
|
struct ifnet *ifp = lgp->lp_ifp;
|
|
struct sockaddr_dl sdl;
|
|
struct ifmultiaddr *rifma = NULL;
|
|
int error;
|
|
|
|
link_init_sdl(ifp, (struct sockaddr *)&sdl, IFT_ETHER);
|
|
sdl.sdl_alen = ETHER_ADDR_LEN;
|
|
|
|
bcopy(ðermulticastaddr_slowprotocols,
|
|
LLADDR(&sdl), ETHER_ADDR_LEN);
|
|
error = if_addmulti(ifp, (struct sockaddr *)&sdl, &rifma);
|
|
if (error) {
|
|
printf("%s: ADDMULTI failed on %s\n", __func__,
|
|
lgp->lp_ifp->if_xname);
|
|
return (error);
|
|
}
|
|
|
|
lp = malloc(sizeof(struct lacp_port),
|
|
M_DEVBUF, M_NOWAIT|M_ZERO);
|
|
if (lp == NULL)
|
|
return (ENOMEM);
|
|
|
|
LACP_LOCK(lsc);
|
|
lgp->lp_psc = lp;
|
|
lp->lp_ifp = ifp;
|
|
lp->lp_lagg = lgp;
|
|
lp->lp_lsc = lsc;
|
|
lp->lp_ifma = rifma;
|
|
|
|
LIST_INSERT_HEAD(&lsc->lsc_ports, lp, lp_next);
|
|
|
|
lacp_fill_actorinfo(lp, &lp->lp_actor);
|
|
lacp_fill_markerinfo(lp, &lp->lp_marker);
|
|
lp->lp_state = LACP_STATE_ACTIVITY;
|
|
lp->lp_aggregator = NULL;
|
|
lacp_sm_rx_set_expired(lp);
|
|
LACP_UNLOCK(lsc);
|
|
lacp_linkstate(lgp);
|
|
|
|
return (0);
|
|
}
|
|
|
|
void
|
|
lacp_port_destroy(struct lagg_port *lgp)
|
|
{
|
|
struct lacp_port *lp = LACP_PORT(lgp);
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
int i;
|
|
|
|
LACP_LOCK(lsc);
|
|
for (i = 0; i < LACP_NTIMER; i++) {
|
|
LACP_TIMER_DISARM(lp, i);
|
|
}
|
|
|
|
lacp_disable_collecting(lp);
|
|
lacp_disable_distributing(lp);
|
|
lacp_unselect(lp);
|
|
|
|
LIST_REMOVE(lp, lp_next);
|
|
LACP_UNLOCK(lsc);
|
|
|
|
/* The address may have already been removed by if_purgemaddrs() */
|
|
if (!lgp->lp_detaching)
|
|
if_delmulti_ifma(lp->lp_ifma);
|
|
|
|
free(lp, M_DEVBUF);
|
|
}
|
|
|
|
void
|
|
lacp_req(struct lagg_softc *sc, void *data)
|
|
{
|
|
struct lacp_opreq *req = (struct lacp_opreq *)data;
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
struct lacp_aggregator *la;
|
|
|
|
bzero(req, sizeof(struct lacp_opreq));
|
|
|
|
/*
|
|
* If the LACP softc is NULL, return with the opreq structure full of
|
|
* zeros. It is normal for the softc to be NULL while the lagg is
|
|
* being destroyed.
|
|
*/
|
|
if (NULL == lsc)
|
|
return;
|
|
|
|
la = lsc->lsc_active_aggregator;
|
|
LACP_LOCK(lsc);
|
|
if (la != NULL) {
|
|
req->actor_prio = ntohs(la->la_actor.lip_systemid.lsi_prio);
|
|
memcpy(&req->actor_mac, &la->la_actor.lip_systemid.lsi_mac,
|
|
ETHER_ADDR_LEN);
|
|
req->actor_key = ntohs(la->la_actor.lip_key);
|
|
req->actor_portprio = ntohs(la->la_actor.lip_portid.lpi_prio);
|
|
req->actor_portno = ntohs(la->la_actor.lip_portid.lpi_portno);
|
|
req->actor_state = la->la_actor.lip_state;
|
|
|
|
req->partner_prio = ntohs(la->la_partner.lip_systemid.lsi_prio);
|
|
memcpy(&req->partner_mac, &la->la_partner.lip_systemid.lsi_mac,
|
|
ETHER_ADDR_LEN);
|
|
req->partner_key = ntohs(la->la_partner.lip_key);
|
|
req->partner_portprio = ntohs(la->la_partner.lip_portid.lpi_prio);
|
|
req->partner_portno = ntohs(la->la_partner.lip_portid.lpi_portno);
|
|
req->partner_state = la->la_partner.lip_state;
|
|
}
|
|
LACP_UNLOCK(lsc);
|
|
}
|
|
|
|
void
|
|
lacp_portreq(struct lagg_port *lgp, void *data)
|
|
{
|
|
struct lacp_opreq *req = (struct lacp_opreq *)data;
|
|
struct lacp_port *lp = LACP_PORT(lgp);
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
|
|
LACP_LOCK(lsc);
|
|
req->actor_prio = ntohs(lp->lp_actor.lip_systemid.lsi_prio);
|
|
memcpy(&req->actor_mac, &lp->lp_actor.lip_systemid.lsi_mac,
|
|
ETHER_ADDR_LEN);
|
|
req->actor_key = ntohs(lp->lp_actor.lip_key);
|
|
req->actor_portprio = ntohs(lp->lp_actor.lip_portid.lpi_prio);
|
|
req->actor_portno = ntohs(lp->lp_actor.lip_portid.lpi_portno);
|
|
req->actor_state = lp->lp_actor.lip_state;
|
|
|
|
req->partner_prio = ntohs(lp->lp_partner.lip_systemid.lsi_prio);
|
|
memcpy(&req->partner_mac, &lp->lp_partner.lip_systemid.lsi_mac,
|
|
ETHER_ADDR_LEN);
|
|
req->partner_key = ntohs(lp->lp_partner.lip_key);
|
|
req->partner_portprio = ntohs(lp->lp_partner.lip_portid.lpi_prio);
|
|
req->partner_portno = ntohs(lp->lp_partner.lip_portid.lpi_portno);
|
|
req->partner_state = lp->lp_partner.lip_state;
|
|
LACP_UNLOCK(lsc);
|
|
}
|
|
|
|
static void
|
|
lacp_disable_collecting(struct lacp_port *lp)
|
|
{
|
|
LACP_DPRINTF((lp, "collecting disabled\n"));
|
|
lp->lp_state &= ~LACP_STATE_COLLECTING;
|
|
}
|
|
|
|
static void
|
|
lacp_enable_collecting(struct lacp_port *lp)
|
|
{
|
|
LACP_DPRINTF((lp, "collecting enabled\n"));
|
|
lp->lp_state |= LACP_STATE_COLLECTING;
|
|
}
|
|
|
|
static void
|
|
lacp_disable_distributing(struct lacp_port *lp)
|
|
{
|
|
struct lacp_aggregator *la = lp->lp_aggregator;
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct lagg_softc *sc = lsc->lsc_softc;
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
LACP_LOCK_ASSERT(lsc);
|
|
|
|
if (la == NULL || (lp->lp_state & LACP_STATE_DISTRIBUTING) == 0) {
|
|
return;
|
|
}
|
|
|
|
KASSERT(!TAILQ_EMPTY(&la->la_ports), ("no aggregator ports"));
|
|
KASSERT(la->la_nports > 0, ("nports invalid (%d)", la->la_nports));
|
|
KASSERT(la->la_refcnt >= la->la_nports, ("aggregator refcnt invalid"));
|
|
|
|
LACP_DPRINTF((lp, "disable distributing on aggregator %s, "
|
|
"nports %d -> %d\n",
|
|
lacp_format_lagid_aggregator(la, buf, sizeof(buf)),
|
|
la->la_nports, la->la_nports - 1));
|
|
|
|
TAILQ_REMOVE(&la->la_ports, lp, lp_dist_q);
|
|
la->la_nports--;
|
|
sc->sc_active = la->la_nports;
|
|
|
|
if (lsc->lsc_active_aggregator == la) {
|
|
lacp_suppress_distributing(lsc, la);
|
|
lacp_select_active_aggregator(lsc);
|
|
/* regenerate the port map, the active aggregator has changed */
|
|
lacp_update_portmap(lsc);
|
|
}
|
|
|
|
lp->lp_state &= ~LACP_STATE_DISTRIBUTING;
|
|
if_link_state_change(sc->sc_ifp,
|
|
sc->sc_active ? LINK_STATE_UP : LINK_STATE_DOWN);
|
|
}
|
|
|
|
static void
|
|
lacp_enable_distributing(struct lacp_port *lp)
|
|
{
|
|
struct lacp_aggregator *la = lp->lp_aggregator;
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct lagg_softc *sc = lsc->lsc_softc;
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
LACP_LOCK_ASSERT(lsc);
|
|
|
|
if ((lp->lp_state & LACP_STATE_DISTRIBUTING) != 0) {
|
|
return;
|
|
}
|
|
|
|
LACP_DPRINTF((lp, "enable distributing on aggregator %s, "
|
|
"nports %d -> %d\n",
|
|
lacp_format_lagid_aggregator(la, buf, sizeof(buf)),
|
|
la->la_nports, la->la_nports + 1));
|
|
|
|
KASSERT(la->la_refcnt > la->la_nports, ("aggregator refcnt invalid"));
|
|
TAILQ_INSERT_HEAD(&la->la_ports, lp, lp_dist_q);
|
|
la->la_nports++;
|
|
sc->sc_active = la->la_nports;
|
|
|
|
lp->lp_state |= LACP_STATE_DISTRIBUTING;
|
|
|
|
if (lsc->lsc_active_aggregator == la) {
|
|
lacp_suppress_distributing(lsc, la);
|
|
lacp_update_portmap(lsc);
|
|
} else
|
|
/* try to become the active aggregator */
|
|
lacp_select_active_aggregator(lsc);
|
|
|
|
if_link_state_change(sc->sc_ifp,
|
|
sc->sc_active ? LINK_STATE_UP : LINK_STATE_DOWN);
|
|
}
|
|
|
|
static void
|
|
lacp_transit_expire(void *vp)
|
|
{
|
|
struct lacp_softc *lsc = vp;
|
|
|
|
LACP_LOCK_ASSERT(lsc);
|
|
|
|
CURVNET_SET(lsc->lsc_softc->sc_ifp->if_vnet);
|
|
LACP_TRACE(NULL);
|
|
CURVNET_RESTORE();
|
|
|
|
lsc->lsc_suppress_distributing = FALSE;
|
|
}
|
|
|
|
void
|
|
lacp_attach(struct lagg_softc *sc)
|
|
{
|
|
struct lacp_softc *lsc;
|
|
|
|
lsc = malloc(sizeof(struct lacp_softc), M_DEVBUF, M_WAITOK | M_ZERO);
|
|
|
|
sc->sc_psc = lsc;
|
|
lsc->lsc_softc = sc;
|
|
|
|
lsc->lsc_hashkey = m_ether_tcpip_hash_init();
|
|
lsc->lsc_active_aggregator = NULL;
|
|
lsc->lsc_strict_mode = VNET(lacp_default_strict_mode);
|
|
LACP_LOCK_INIT(lsc);
|
|
TAILQ_INIT(&lsc->lsc_aggregators);
|
|
LIST_INIT(&lsc->lsc_ports);
|
|
|
|
callout_init_mtx(&lsc->lsc_transit_callout, &lsc->lsc_mtx, 0);
|
|
callout_init_mtx(&lsc->lsc_callout, &lsc->lsc_mtx, 0);
|
|
|
|
/* if the lagg is already up then do the same */
|
|
if (sc->sc_ifp->if_drv_flags & IFF_DRV_RUNNING)
|
|
lacp_init(sc);
|
|
}
|
|
|
|
void
|
|
lacp_detach(void *psc)
|
|
{
|
|
struct lacp_softc *lsc = (struct lacp_softc *)psc;
|
|
|
|
KASSERT(TAILQ_EMPTY(&lsc->lsc_aggregators),
|
|
("aggregators still active"));
|
|
KASSERT(lsc->lsc_active_aggregator == NULL,
|
|
("aggregator still attached"));
|
|
|
|
callout_drain(&lsc->lsc_transit_callout);
|
|
callout_drain(&lsc->lsc_callout);
|
|
|
|
LACP_LOCK_DESTROY(lsc);
|
|
free(lsc, M_DEVBUF);
|
|
}
|
|
|
|
void
|
|
lacp_init(struct lagg_softc *sc)
|
|
{
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
|
|
LACP_LOCK(lsc);
|
|
callout_reset(&lsc->lsc_callout, hz, lacp_tick, lsc);
|
|
LACP_UNLOCK(lsc);
|
|
}
|
|
|
|
void
|
|
lacp_stop(struct lagg_softc *sc)
|
|
{
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
|
|
LACP_LOCK(lsc);
|
|
callout_stop(&lsc->lsc_transit_callout);
|
|
callout_stop(&lsc->lsc_callout);
|
|
LACP_UNLOCK(lsc);
|
|
}
|
|
|
|
struct lagg_port *
|
|
lacp_select_tx_port_by_hash(struct lagg_softc *sc, uint32_t hash,
|
|
uint8_t numa_domain, int *err)
|
|
{
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
struct lacp_portmap *pm;
|
|
struct lacp_port *lp;
|
|
struct lacp_port **map;
|
|
int count;
|
|
|
|
if (__predict_false(lsc->lsc_suppress_distributing)) {
|
|
LACP_DPRINTF((NULL, "%s: waiting transit\n", __func__));
|
|
*err = ENOBUFS;
|
|
return (NULL);
|
|
}
|
|
|
|
pm = &lsc->lsc_pmap[lsc->lsc_activemap];
|
|
if (pm->pm_count == 0) {
|
|
LACP_DPRINTF((NULL, "%s: no active aggregator\n", __func__));
|
|
*err = ENETDOWN;
|
|
return (NULL);
|
|
}
|
|
|
|
#ifdef NUMA
|
|
if ((sc->sc_opts & LAGG_OPT_USE_NUMA) &&
|
|
pm->pm_num_dom > 1 && numa_domain < MAXMEMDOM) {
|
|
count = pm->pm_numa[numa_domain].count;
|
|
if (count > 0) {
|
|
map = pm->pm_numa[numa_domain].map;
|
|
} else {
|
|
/* No ports on this domain; use global hash. */
|
|
map = pm->pm_map;
|
|
count = pm->pm_count;
|
|
}
|
|
} else
|
|
#endif
|
|
{
|
|
map = pm->pm_map;
|
|
count = pm->pm_count;
|
|
}
|
|
|
|
hash %= count;
|
|
lp = map[hash];
|
|
|
|
return (lp->lp_lagg);
|
|
}
|
|
|
|
struct lagg_port *
|
|
lacp_select_tx_port(struct lagg_softc *sc, struct mbuf *m, int *err)
|
|
{
|
|
struct lacp_softc *lsc = LACP_SOFTC(sc);
|
|
uint32_t hash;
|
|
uint8_t numa_domain;
|
|
|
|
if ((sc->sc_opts & LAGG_OPT_USE_FLOWID) &&
|
|
M_HASHTYPE_GET(m) != M_HASHTYPE_NONE)
|
|
hash = m->m_pkthdr.flowid >> sc->flowid_shift;
|
|
else
|
|
hash = m_ether_tcpip_hash(sc->sc_flags, m, lsc->lsc_hashkey);
|
|
|
|
numa_domain = m->m_pkthdr.numa_domain;
|
|
return (lacp_select_tx_port_by_hash(sc, hash, numa_domain, err));
|
|
}
|
|
|
|
/*
|
|
* lacp_suppress_distributing: drop transmit packets for a while
|
|
* to preserve packet ordering.
|
|
*/
|
|
|
|
static void
|
|
lacp_suppress_distributing(struct lacp_softc *lsc, struct lacp_aggregator *la)
|
|
{
|
|
struct lacp_port *lp;
|
|
|
|
if (lsc->lsc_active_aggregator != la) {
|
|
return;
|
|
}
|
|
|
|
LACP_TRACE(NULL);
|
|
|
|
lsc->lsc_suppress_distributing = TRUE;
|
|
|
|
/* send a marker frame down each port to verify the queues are empty */
|
|
LIST_FOREACH(lp, &lsc->lsc_ports, lp_next) {
|
|
lp->lp_flags |= LACP_PORT_MARK;
|
|
if (lacp_xmit_marker(lp) != 0)
|
|
lp->lp_flags &= ~LACP_PORT_MARK;
|
|
}
|
|
|
|
/* set a timeout for the marker frames */
|
|
callout_reset(&lsc->lsc_transit_callout,
|
|
LACP_TRANSIT_DELAY * hz / 1000, lacp_transit_expire, lsc);
|
|
}
|
|
|
|
static int
|
|
lacp_compare_peerinfo(const struct lacp_peerinfo *a,
|
|
const struct lacp_peerinfo *b)
|
|
{
|
|
return (memcmp(a, b, offsetof(struct lacp_peerinfo, lip_state)));
|
|
}
|
|
|
|
static int
|
|
lacp_compare_systemid(const struct lacp_systemid *a,
|
|
const struct lacp_systemid *b)
|
|
{
|
|
return (memcmp(a, b, sizeof(*a)));
|
|
}
|
|
|
|
#if 0 /* unused */
|
|
static int
|
|
lacp_compare_portid(const struct lacp_portid *a,
|
|
const struct lacp_portid *b)
|
|
{
|
|
return (memcmp(a, b, sizeof(*a)));
|
|
}
|
|
#endif
|
|
|
|
static uint64_t
|
|
lacp_aggregator_bandwidth(struct lacp_aggregator *la)
|
|
{
|
|
struct lacp_port *lp;
|
|
uint64_t speed;
|
|
|
|
lp = TAILQ_FIRST(&la->la_ports);
|
|
if (lp == NULL) {
|
|
return (0);
|
|
}
|
|
|
|
speed = ifmedia_baudrate(lp->lp_media);
|
|
speed *= la->la_nports;
|
|
if (speed == 0) {
|
|
LACP_DPRINTF((lp, "speed 0? media=0x%x nports=%d\n",
|
|
lp->lp_media, la->la_nports));
|
|
}
|
|
|
|
return (speed);
|
|
}
|
|
|
|
/*
|
|
* lacp_select_active_aggregator: select an aggregator to be used to transmit
|
|
* packets from lagg(4) interface.
|
|
*/
|
|
|
|
static void
|
|
lacp_select_active_aggregator(struct lacp_softc *lsc)
|
|
{
|
|
struct lacp_aggregator *la;
|
|
struct lacp_aggregator *best_la = NULL;
|
|
uint64_t best_speed = 0;
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
LACP_TRACE(NULL);
|
|
|
|
TAILQ_FOREACH(la, &lsc->lsc_aggregators, la_q) {
|
|
uint64_t speed;
|
|
|
|
if (la->la_nports == 0) {
|
|
continue;
|
|
}
|
|
|
|
speed = lacp_aggregator_bandwidth(la);
|
|
LACP_DPRINTF((NULL, "%s, speed=%jd, nports=%d\n",
|
|
lacp_format_lagid_aggregator(la, buf, sizeof(buf)),
|
|
speed, la->la_nports));
|
|
|
|
/*
|
|
* This aggregator is chosen if the partner has a better
|
|
* system priority or, the total aggregated speed is higher
|
|
* or, it is already the chosen aggregator
|
|
*/
|
|
if ((best_la != NULL && LACP_SYS_PRI(la->la_partner) <
|
|
LACP_SYS_PRI(best_la->la_partner)) ||
|
|
speed > best_speed ||
|
|
(speed == best_speed &&
|
|
la == lsc->lsc_active_aggregator)) {
|
|
best_la = la;
|
|
best_speed = speed;
|
|
}
|
|
}
|
|
|
|
KASSERT(best_la == NULL || best_la->la_nports > 0,
|
|
("invalid aggregator refcnt"));
|
|
KASSERT(best_la == NULL || !TAILQ_EMPTY(&best_la->la_ports),
|
|
("invalid aggregator list"));
|
|
|
|
if (lsc->lsc_active_aggregator != best_la) {
|
|
LACP_DPRINTF((NULL, "active aggregator changed\n"));
|
|
LACP_DPRINTF((NULL, "old %s\n",
|
|
lacp_format_lagid_aggregator(lsc->lsc_active_aggregator,
|
|
buf, sizeof(buf))));
|
|
} else {
|
|
LACP_DPRINTF((NULL, "active aggregator not changed\n"));
|
|
}
|
|
LACP_DPRINTF((NULL, "new %s\n",
|
|
lacp_format_lagid_aggregator(best_la, buf, sizeof(buf))));
|
|
|
|
if (lsc->lsc_active_aggregator != best_la) {
|
|
lsc->lsc_active_aggregator = best_la;
|
|
lacp_update_portmap(lsc);
|
|
if (best_la) {
|
|
lacp_suppress_distributing(lsc, best_la);
|
|
}
|
|
}
|
|
}
|
|
|
|
/*
|
|
* Updated the inactive portmap array with the new list of ports and
|
|
* make it live.
|
|
*/
|
|
static void
|
|
lacp_update_portmap(struct lacp_softc *lsc)
|
|
{
|
|
struct lagg_softc *sc = lsc->lsc_softc;
|
|
struct lacp_aggregator *la;
|
|
struct lacp_portmap *p;
|
|
struct lacp_port *lp;
|
|
uint64_t speed;
|
|
u_int newmap;
|
|
int i;
|
|
#ifdef NUMA
|
|
int count;
|
|
uint8_t domain;
|
|
#endif
|
|
|
|
newmap = lsc->lsc_activemap == 0 ? 1 : 0;
|
|
p = &lsc->lsc_pmap[newmap];
|
|
la = lsc->lsc_active_aggregator;
|
|
speed = 0;
|
|
bzero(p, sizeof(struct lacp_portmap));
|
|
|
|
if (la != NULL && la->la_nports > 0) {
|
|
p->pm_count = la->la_nports;
|
|
i = 0;
|
|
TAILQ_FOREACH(lp, &la->la_ports, lp_dist_q) {
|
|
p->pm_map[i++] = lp;
|
|
#ifdef NUMA
|
|
domain = lp->lp_ifp->if_numa_domain;
|
|
if (domain >= MAXMEMDOM)
|
|
continue;
|
|
count = p->pm_numa[domain].count;
|
|
p->pm_numa[domain].map[count] = lp;
|
|
p->pm_numa[domain].count++;
|
|
#endif
|
|
}
|
|
KASSERT(i == p->pm_count, ("Invalid port count"));
|
|
|
|
#ifdef NUMA
|
|
for (i = 0; i < MAXMEMDOM; i++) {
|
|
if (p->pm_numa[i].count != 0)
|
|
p->pm_num_dom++;
|
|
}
|
|
#endif
|
|
speed = lacp_aggregator_bandwidth(la);
|
|
}
|
|
sc->sc_ifp->if_baudrate = speed;
|
|
EVENTHANDLER_INVOKE(ifnet_event, sc->sc_ifp,
|
|
IFNET_EVENT_UPDATE_BAUDRATE);
|
|
|
|
/* switch the active portmap over */
|
|
atomic_store_rel_int(&lsc->lsc_activemap, newmap);
|
|
LACP_DPRINTF((NULL, "Set table %d with %d ports\n",
|
|
lsc->lsc_activemap,
|
|
lsc->lsc_pmap[lsc->lsc_activemap].pm_count));
|
|
}
|
|
|
|
static uint16_t
|
|
lacp_compose_key(struct lacp_port *lp)
|
|
{
|
|
struct lagg_port *lgp = lp->lp_lagg;
|
|
struct lagg_softc *sc = lgp->lp_softc;
|
|
u_int media = lp->lp_media;
|
|
uint16_t key;
|
|
|
|
if ((lp->lp_state & LACP_STATE_AGGREGATION) == 0) {
|
|
/*
|
|
* non-aggregatable links should have unique keys.
|
|
*
|
|
* XXX this isn't really unique as if_index is 16 bit.
|
|
*/
|
|
|
|
/* bit 0..14: (some bits of) if_index of this port */
|
|
key = lp->lp_ifp->if_index;
|
|
/* bit 15: 1 */
|
|
key |= 0x8000;
|
|
} else {
|
|
u_int subtype = IFM_SUBTYPE(media);
|
|
|
|
KASSERT(IFM_TYPE(media) == IFM_ETHER, ("invalid media type"));
|
|
KASSERT((media & IFM_FDX) != 0, ("aggregating HDX interface"));
|
|
|
|
/* bit 0..4: IFM_SUBTYPE modulo speed */
|
|
switch (subtype) {
|
|
case IFM_10_T:
|
|
case IFM_10_2:
|
|
case IFM_10_5:
|
|
case IFM_10_STP:
|
|
case IFM_10_FL:
|
|
key = IFM_10_T;
|
|
break;
|
|
case IFM_100_TX:
|
|
case IFM_100_FX:
|
|
case IFM_100_T4:
|
|
case IFM_100_VG:
|
|
case IFM_100_T2:
|
|
case IFM_100_T:
|
|
case IFM_100_SGMII:
|
|
key = IFM_100_TX;
|
|
break;
|
|
case IFM_1000_SX:
|
|
case IFM_1000_LX:
|
|
case IFM_1000_CX:
|
|
case IFM_1000_T:
|
|
case IFM_1000_KX:
|
|
case IFM_1000_SGMII:
|
|
case IFM_1000_CX_SGMII:
|
|
key = IFM_1000_SX;
|
|
break;
|
|
case IFM_10G_LR:
|
|
case IFM_10G_SR:
|
|
case IFM_10G_CX4:
|
|
case IFM_10G_TWINAX:
|
|
case IFM_10G_TWINAX_LONG:
|
|
case IFM_10G_LRM:
|
|
case IFM_10G_T:
|
|
case IFM_10G_KX4:
|
|
case IFM_10G_KR:
|
|
case IFM_10G_CR1:
|
|
case IFM_10G_ER:
|
|
case IFM_10G_SFI:
|
|
case IFM_10G_AOC:
|
|
key = IFM_10G_LR;
|
|
break;
|
|
case IFM_20G_KR2:
|
|
key = IFM_20G_KR2;
|
|
break;
|
|
case IFM_2500_KX:
|
|
case IFM_2500_T:
|
|
case IFM_2500_X:
|
|
key = IFM_2500_KX;
|
|
break;
|
|
case IFM_5000_T:
|
|
case IFM_5000_KR:
|
|
case IFM_5000_KR_S:
|
|
case IFM_5000_KR1:
|
|
key = IFM_5000_T;
|
|
break;
|
|
case IFM_50G_PCIE:
|
|
case IFM_50G_CR2:
|
|
case IFM_50G_KR2:
|
|
case IFM_50G_KR4:
|
|
case IFM_50G_SR2:
|
|
case IFM_50G_LR2:
|
|
case IFM_50G_LAUI2_AC:
|
|
case IFM_50G_LAUI2:
|
|
case IFM_50G_AUI2_AC:
|
|
case IFM_50G_AUI2:
|
|
case IFM_50G_CP:
|
|
case IFM_50G_SR:
|
|
case IFM_50G_LR:
|
|
case IFM_50G_FR:
|
|
case IFM_50G_KR_PAM4:
|
|
case IFM_50G_AUI1_AC:
|
|
case IFM_50G_AUI1:
|
|
key = IFM_50G_PCIE;
|
|
break;
|
|
case IFM_56G_R4:
|
|
key = IFM_56G_R4;
|
|
break;
|
|
case IFM_25G_PCIE:
|
|
case IFM_25G_CR:
|
|
case IFM_25G_KR:
|
|
case IFM_25G_SR:
|
|
case IFM_25G_LR:
|
|
case IFM_25G_ACC:
|
|
case IFM_25G_AOC:
|
|
case IFM_25G_T:
|
|
case IFM_25G_CR_S:
|
|
case IFM_25G_CR1:
|
|
case IFM_25G_KR_S:
|
|
case IFM_25G_AUI:
|
|
case IFM_25G_KR1:
|
|
key = IFM_25G_PCIE;
|
|
break;
|
|
case IFM_40G_CR4:
|
|
case IFM_40G_SR4:
|
|
case IFM_40G_LR4:
|
|
case IFM_40G_LM4:
|
|
case IFM_40G_XLPPI:
|
|
case IFM_40G_KR4:
|
|
case IFM_40G_XLAUI:
|
|
case IFM_40G_XLAUI_AC:
|
|
case IFM_40G_ER4:
|
|
key = IFM_40G_CR4;
|
|
break;
|
|
case IFM_100G_CR4:
|
|
case IFM_100G_SR4:
|
|
case IFM_100G_KR4:
|
|
case IFM_100G_LR4:
|
|
case IFM_100G_CAUI4_AC:
|
|
case IFM_100G_CAUI4:
|
|
case IFM_100G_AUI4_AC:
|
|
case IFM_100G_AUI4:
|
|
case IFM_100G_CR_PAM4:
|
|
case IFM_100G_KR_PAM4:
|
|
case IFM_100G_CP2:
|
|
case IFM_100G_SR2:
|
|
case IFM_100G_DR:
|
|
case IFM_100G_KR2_PAM4:
|
|
case IFM_100G_CAUI2_AC:
|
|
case IFM_100G_CAUI2:
|
|
case IFM_100G_AUI2_AC:
|
|
case IFM_100G_AUI2:
|
|
key = IFM_100G_CR4;
|
|
break;
|
|
case IFM_200G_CR4_PAM4:
|
|
case IFM_200G_SR4:
|
|
case IFM_200G_FR4:
|
|
case IFM_200G_LR4:
|
|
case IFM_200G_DR4:
|
|
case IFM_200G_KR4_PAM4:
|
|
case IFM_200G_AUI4_AC:
|
|
case IFM_200G_AUI4:
|
|
case IFM_200G_AUI8_AC:
|
|
case IFM_200G_AUI8:
|
|
key = IFM_200G_CR4_PAM4;
|
|
break;
|
|
case IFM_400G_FR8:
|
|
case IFM_400G_LR8:
|
|
case IFM_400G_DR4:
|
|
case IFM_400G_AUI8_AC:
|
|
case IFM_400G_AUI8:
|
|
key = IFM_400G_FR8;
|
|
break;
|
|
default:
|
|
key = subtype;
|
|
break;
|
|
}
|
|
/* bit 5..14: (some bits of) if_index of lagg device */
|
|
key |= 0x7fe0 & ((sc->sc_ifp->if_index) << 5);
|
|
/* bit 15: 0 */
|
|
}
|
|
return (htons(key));
|
|
}
|
|
|
|
static void
|
|
lacp_aggregator_addref(struct lacp_softc *lsc, struct lacp_aggregator *la)
|
|
{
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
LACP_DPRINTF((NULL, "%s: lagid=%s, refcnt %d -> %d\n",
|
|
__func__,
|
|
lacp_format_lagid(&la->la_actor, &la->la_partner,
|
|
buf, sizeof(buf)),
|
|
la->la_refcnt, la->la_refcnt + 1));
|
|
|
|
KASSERT(la->la_refcnt > 0, ("refcount <= 0"));
|
|
la->la_refcnt++;
|
|
KASSERT(la->la_refcnt > la->la_nports, ("invalid refcount"));
|
|
}
|
|
|
|
static void
|
|
lacp_aggregator_delref(struct lacp_softc *lsc, struct lacp_aggregator *la)
|
|
{
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
LACP_DPRINTF((NULL, "%s: lagid=%s, refcnt %d -> %d\n",
|
|
__func__,
|
|
lacp_format_lagid(&la->la_actor, &la->la_partner,
|
|
buf, sizeof(buf)),
|
|
la->la_refcnt, la->la_refcnt - 1));
|
|
|
|
KASSERT(la->la_refcnt > la->la_nports, ("invalid refcnt"));
|
|
la->la_refcnt--;
|
|
if (la->la_refcnt > 0) {
|
|
return;
|
|
}
|
|
|
|
KASSERT(la->la_refcnt == 0, ("refcount not zero"));
|
|
KASSERT(lsc->lsc_active_aggregator != la, ("aggregator active"));
|
|
|
|
TAILQ_REMOVE(&lsc->lsc_aggregators, la, la_q);
|
|
|
|
free(la, M_DEVBUF);
|
|
}
|
|
|
|
/*
|
|
* lacp_aggregator_get: allocate an aggregator.
|
|
*/
|
|
|
|
static struct lacp_aggregator *
|
|
lacp_aggregator_get(struct lacp_softc *lsc, struct lacp_port *lp)
|
|
{
|
|
struct lacp_aggregator *la;
|
|
|
|
la = malloc(sizeof(*la), M_DEVBUF, M_NOWAIT);
|
|
if (la) {
|
|
la->la_refcnt = 1;
|
|
la->la_nports = 0;
|
|
TAILQ_INIT(&la->la_ports);
|
|
la->la_pending = 0;
|
|
TAILQ_INSERT_TAIL(&lsc->lsc_aggregators, la, la_q);
|
|
}
|
|
|
|
return (la);
|
|
}
|
|
|
|
/*
|
|
* lacp_fill_aggregator_id: setup a newly allocated aggregator from a port.
|
|
*/
|
|
|
|
static void
|
|
lacp_fill_aggregator_id(struct lacp_aggregator *la, const struct lacp_port *lp)
|
|
{
|
|
lacp_fill_aggregator_id_peer(&la->la_partner, &lp->lp_partner);
|
|
lacp_fill_aggregator_id_peer(&la->la_actor, &lp->lp_actor);
|
|
|
|
la->la_actor.lip_state = lp->lp_state & LACP_STATE_AGGREGATION;
|
|
}
|
|
|
|
static void
|
|
lacp_fill_aggregator_id_peer(struct lacp_peerinfo *lpi_aggr,
|
|
const struct lacp_peerinfo *lpi_port)
|
|
{
|
|
memset(lpi_aggr, 0, sizeof(*lpi_aggr));
|
|
lpi_aggr->lip_systemid = lpi_port->lip_systemid;
|
|
lpi_aggr->lip_key = lpi_port->lip_key;
|
|
}
|
|
|
|
/*
|
|
* lacp_aggregator_is_compatible: check if a port can join to an aggregator.
|
|
*/
|
|
|
|
static bool
|
|
lacp_aggregator_is_compatible(const struct lacp_aggregator *la,
|
|
const struct lacp_port *lp)
|
|
{
|
|
if (!(lp->lp_state & LACP_STATE_AGGREGATION) ||
|
|
!(lp->lp_partner.lip_state & LACP_STATE_AGGREGATION)) {
|
|
return (false);
|
|
}
|
|
|
|
if (!(la->la_actor.lip_state & LACP_STATE_AGGREGATION))
|
|
return (false);
|
|
|
|
if (!lacp_peerinfo_is_compatible(&la->la_partner, &lp->lp_partner))
|
|
return (false);
|
|
|
|
if (!lacp_peerinfo_is_compatible(&la->la_actor, &lp->lp_actor))
|
|
return (false);
|
|
|
|
return (true);
|
|
}
|
|
|
|
static bool
|
|
lacp_peerinfo_is_compatible(const struct lacp_peerinfo *a,
|
|
const struct lacp_peerinfo *b)
|
|
{
|
|
if (memcmp(&a->lip_systemid, &b->lip_systemid,
|
|
sizeof(a->lip_systemid)) != 0) {
|
|
return (false);
|
|
}
|
|
|
|
if (memcmp(&a->lip_key, &b->lip_key, sizeof(a->lip_key)) != 0)
|
|
return (false);
|
|
|
|
return (true);
|
|
}
|
|
|
|
static void
|
|
lacp_port_enable(struct lacp_port *lp)
|
|
{
|
|
lp->lp_state |= LACP_STATE_AGGREGATION;
|
|
}
|
|
|
|
static void
|
|
lacp_port_disable(struct lacp_port *lp)
|
|
{
|
|
lacp_set_mux(lp, LACP_MUX_DETACHED);
|
|
|
|
lp->lp_state &= ~LACP_STATE_AGGREGATION;
|
|
lp->lp_selected = LACP_UNSELECTED;
|
|
lacp_sm_rx_record_default(lp);
|
|
lp->lp_partner.lip_state &= ~LACP_STATE_AGGREGATION;
|
|
lp->lp_state &= ~LACP_STATE_EXPIRED;
|
|
}
|
|
|
|
/*
|
|
* lacp_select: select an aggregator. create one if necessary.
|
|
*/
|
|
static void
|
|
lacp_select(struct lacp_port *lp)
|
|
{
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct lacp_aggregator *la;
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
if (lp->lp_aggregator) {
|
|
return;
|
|
}
|
|
|
|
/* If we haven't heard from our peer, skip this step. */
|
|
if (lp->lp_state & LACP_STATE_DEFAULTED)
|
|
return;
|
|
|
|
KASSERT(!LACP_TIMER_ISARMED(lp, LACP_TIMER_WAIT_WHILE),
|
|
("timer_wait_while still active"));
|
|
|
|
LACP_DPRINTF((lp, "port lagid=%s\n",
|
|
lacp_format_lagid(&lp->lp_actor, &lp->lp_partner,
|
|
buf, sizeof(buf))));
|
|
|
|
TAILQ_FOREACH(la, &lsc->lsc_aggregators, la_q) {
|
|
if (lacp_aggregator_is_compatible(la, lp)) {
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (la == NULL) {
|
|
la = lacp_aggregator_get(lsc, lp);
|
|
if (la == NULL) {
|
|
LACP_DPRINTF((lp, "aggregator creation failed\n"));
|
|
|
|
/*
|
|
* will retry on the next tick.
|
|
*/
|
|
|
|
return;
|
|
}
|
|
lacp_fill_aggregator_id(la, lp);
|
|
LACP_DPRINTF((lp, "aggregator created\n"));
|
|
} else {
|
|
LACP_DPRINTF((lp, "compatible aggregator found\n"));
|
|
if (la->la_refcnt == LACP_MAX_PORTS)
|
|
return;
|
|
lacp_aggregator_addref(lsc, la);
|
|
}
|
|
|
|
LACP_DPRINTF((lp, "aggregator lagid=%s\n",
|
|
lacp_format_lagid(&la->la_actor, &la->la_partner,
|
|
buf, sizeof(buf))));
|
|
|
|
lp->lp_aggregator = la;
|
|
lp->lp_selected = LACP_SELECTED;
|
|
}
|
|
|
|
/*
|
|
* lacp_unselect: finish unselect/detach process.
|
|
*/
|
|
|
|
static void
|
|
lacp_unselect(struct lacp_port *lp)
|
|
{
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct lacp_aggregator *la = lp->lp_aggregator;
|
|
|
|
KASSERT(!LACP_TIMER_ISARMED(lp, LACP_TIMER_WAIT_WHILE),
|
|
("timer_wait_while still active"));
|
|
|
|
if (la == NULL) {
|
|
return;
|
|
}
|
|
|
|
lp->lp_aggregator = NULL;
|
|
lacp_aggregator_delref(lsc, la);
|
|
}
|
|
|
|
/* mux machine */
|
|
|
|
static void
|
|
lacp_sm_mux(struct lacp_port *lp)
|
|
{
|
|
struct lagg_port *lgp = lp->lp_lagg;
|
|
struct lagg_softc *sc = lgp->lp_softc;
|
|
enum lacp_mux_state new_state;
|
|
boolean_t p_sync =
|
|
(lp->lp_partner.lip_state & LACP_STATE_SYNC) != 0;
|
|
boolean_t p_collecting =
|
|
(lp->lp_partner.lip_state & LACP_STATE_COLLECTING) != 0;
|
|
enum lacp_selected selected = lp->lp_selected;
|
|
struct lacp_aggregator *la;
|
|
|
|
if (V_lacp_debug > 1)
|
|
lacp_dprintf(lp, "%s: state= 0x%x, selected= 0x%x, "
|
|
"p_sync= 0x%x, p_collecting= 0x%x\n", __func__,
|
|
lp->lp_mux_state, selected, p_sync, p_collecting);
|
|
|
|
re_eval:
|
|
la = lp->lp_aggregator;
|
|
KASSERT(lp->lp_mux_state == LACP_MUX_DETACHED || la != NULL,
|
|
("MUX not detached"));
|
|
new_state = lp->lp_mux_state;
|
|
switch (lp->lp_mux_state) {
|
|
case LACP_MUX_DETACHED:
|
|
if (selected != LACP_UNSELECTED) {
|
|
new_state = LACP_MUX_WAITING;
|
|
}
|
|
break;
|
|
case LACP_MUX_WAITING:
|
|
KASSERT(la->la_pending > 0 ||
|
|
!LACP_TIMER_ISARMED(lp, LACP_TIMER_WAIT_WHILE),
|
|
("timer_wait_while still active"));
|
|
if (selected == LACP_SELECTED && la->la_pending == 0) {
|
|
new_state = LACP_MUX_ATTACHED;
|
|
} else if (selected == LACP_UNSELECTED) {
|
|
new_state = LACP_MUX_DETACHED;
|
|
}
|
|
break;
|
|
case LACP_MUX_ATTACHED:
|
|
if (selected == LACP_SELECTED && p_sync) {
|
|
new_state = LACP_MUX_COLLECTING;
|
|
} else if (selected != LACP_SELECTED) {
|
|
new_state = LACP_MUX_DETACHED;
|
|
}
|
|
break;
|
|
case LACP_MUX_COLLECTING:
|
|
if (selected == LACP_SELECTED && p_sync && p_collecting) {
|
|
new_state = LACP_MUX_DISTRIBUTING;
|
|
} else if (selected != LACP_SELECTED || !p_sync) {
|
|
new_state = LACP_MUX_ATTACHED;
|
|
}
|
|
break;
|
|
case LACP_MUX_DISTRIBUTING:
|
|
if (selected != LACP_SELECTED || !p_sync || !p_collecting) {
|
|
new_state = LACP_MUX_COLLECTING;
|
|
lacp_dprintf(lp, "Interface stopped DISTRIBUTING, possible flapping\n");
|
|
sc->sc_flapping++;
|
|
}
|
|
break;
|
|
default:
|
|
panic("%s: unknown state", __func__);
|
|
}
|
|
|
|
if (lp->lp_mux_state == new_state) {
|
|
return;
|
|
}
|
|
|
|
lacp_set_mux(lp, new_state);
|
|
goto re_eval;
|
|
}
|
|
|
|
static void
|
|
lacp_set_mux(struct lacp_port *lp, enum lacp_mux_state new_state)
|
|
{
|
|
struct lacp_aggregator *la = lp->lp_aggregator;
|
|
|
|
if (lp->lp_mux_state == new_state) {
|
|
return;
|
|
}
|
|
|
|
switch (new_state) {
|
|
case LACP_MUX_DETACHED:
|
|
lp->lp_state &= ~LACP_STATE_SYNC;
|
|
lacp_disable_distributing(lp);
|
|
lacp_disable_collecting(lp);
|
|
lacp_sm_assert_ntt(lp);
|
|
/* cancel timer */
|
|
if (LACP_TIMER_ISARMED(lp, LACP_TIMER_WAIT_WHILE)) {
|
|
KASSERT(la->la_pending > 0,
|
|
("timer_wait_while not active"));
|
|
la->la_pending--;
|
|
}
|
|
LACP_TIMER_DISARM(lp, LACP_TIMER_WAIT_WHILE);
|
|
lacp_unselect(lp);
|
|
break;
|
|
case LACP_MUX_WAITING:
|
|
LACP_TIMER_ARM(lp, LACP_TIMER_WAIT_WHILE,
|
|
LACP_AGGREGATE_WAIT_TIME);
|
|
la->la_pending++;
|
|
break;
|
|
case LACP_MUX_ATTACHED:
|
|
lp->lp_state |= LACP_STATE_SYNC;
|
|
lacp_disable_collecting(lp);
|
|
lacp_sm_assert_ntt(lp);
|
|
break;
|
|
case LACP_MUX_COLLECTING:
|
|
lacp_enable_collecting(lp);
|
|
lacp_disable_distributing(lp);
|
|
lacp_sm_assert_ntt(lp);
|
|
break;
|
|
case LACP_MUX_DISTRIBUTING:
|
|
lacp_enable_distributing(lp);
|
|
break;
|
|
default:
|
|
panic("%s: unknown state", __func__);
|
|
}
|
|
|
|
LACP_DPRINTF((lp, "mux_state %d -> %d\n", lp->lp_mux_state, new_state));
|
|
|
|
lp->lp_mux_state = new_state;
|
|
}
|
|
|
|
static void
|
|
lacp_sm_mux_timer(struct lacp_port *lp)
|
|
{
|
|
struct lacp_aggregator *la = lp->lp_aggregator;
|
|
char buf[LACP_LAGIDSTR_MAX+1];
|
|
|
|
KASSERT(la->la_pending > 0, ("no pending event"));
|
|
|
|
LACP_DPRINTF((lp, "%s: aggregator %s, pending %d -> %d\n", __func__,
|
|
lacp_format_lagid(&la->la_actor, &la->la_partner,
|
|
buf, sizeof(buf)),
|
|
la->la_pending, la->la_pending - 1));
|
|
|
|
la->la_pending--;
|
|
}
|
|
|
|
/* periodic transmit machine */
|
|
|
|
static void
|
|
lacp_sm_ptx_update_timeout(struct lacp_port *lp, uint8_t oldpstate)
|
|
{
|
|
if (LACP_STATE_EQ(oldpstate, lp->lp_partner.lip_state,
|
|
LACP_STATE_TIMEOUT)) {
|
|
return;
|
|
}
|
|
|
|
LACP_DPRINTF((lp, "partner timeout changed\n"));
|
|
|
|
/*
|
|
* FAST_PERIODIC -> SLOW_PERIODIC
|
|
* or
|
|
* SLOW_PERIODIC (-> PERIODIC_TX) -> FAST_PERIODIC
|
|
*
|
|
* let lacp_sm_ptx_tx_schedule to update timeout.
|
|
*/
|
|
|
|
LACP_TIMER_DISARM(lp, LACP_TIMER_PERIODIC);
|
|
|
|
/*
|
|
* if timeout has been shortened, assert NTT.
|
|
*/
|
|
|
|
if ((lp->lp_partner.lip_state & LACP_STATE_TIMEOUT)) {
|
|
lacp_sm_assert_ntt(lp);
|
|
}
|
|
}
|
|
|
|
static void
|
|
lacp_sm_ptx_tx_schedule(struct lacp_port *lp)
|
|
{
|
|
int timeout;
|
|
|
|
if (!(lp->lp_state & LACP_STATE_ACTIVITY) &&
|
|
!(lp->lp_partner.lip_state & LACP_STATE_ACTIVITY)) {
|
|
/*
|
|
* NO_PERIODIC
|
|
*/
|
|
|
|
LACP_TIMER_DISARM(lp, LACP_TIMER_PERIODIC);
|
|
return;
|
|
}
|
|
|
|
if (LACP_TIMER_ISARMED(lp, LACP_TIMER_PERIODIC)) {
|
|
return;
|
|
}
|
|
|
|
timeout = (lp->lp_partner.lip_state & LACP_STATE_TIMEOUT) ?
|
|
LACP_FAST_PERIODIC_TIME : LACP_SLOW_PERIODIC_TIME;
|
|
|
|
LACP_TIMER_ARM(lp, LACP_TIMER_PERIODIC, timeout);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_ptx_timer(struct lacp_port *lp)
|
|
{
|
|
lacp_sm_assert_ntt(lp);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx(struct lacp_port *lp, const struct lacpdu *du)
|
|
{
|
|
int timeout;
|
|
|
|
/*
|
|
* check LACP_DISABLED first
|
|
*/
|
|
|
|
if (!(lp->lp_state & LACP_STATE_AGGREGATION)) {
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* check loopback condition.
|
|
*/
|
|
|
|
if (!lacp_compare_systemid(&du->ldu_actor.lip_systemid,
|
|
&lp->lp_actor.lip_systemid)) {
|
|
return;
|
|
}
|
|
|
|
/*
|
|
* EXPIRED, DEFAULTED, CURRENT -> CURRENT
|
|
*/
|
|
|
|
microuptime(&lp->lp_last_lacpdu_rx);
|
|
lacp_sm_rx_update_selected(lp, du);
|
|
lacp_sm_rx_update_ntt(lp, du);
|
|
lacp_sm_rx_record_pdu(lp, du);
|
|
|
|
timeout = (lp->lp_state & LACP_STATE_TIMEOUT) ?
|
|
LACP_SHORT_TIMEOUT_TIME : LACP_LONG_TIMEOUT_TIME;
|
|
LACP_TIMER_ARM(lp, LACP_TIMER_CURRENT_WHILE, timeout);
|
|
|
|
lp->lp_state &= ~LACP_STATE_EXPIRED;
|
|
|
|
/*
|
|
* kick transmit machine without waiting the next tick.
|
|
*/
|
|
|
|
lacp_sm_tx(lp);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_set_expired(struct lacp_port *lp)
|
|
{
|
|
lp->lp_partner.lip_state &= ~LACP_STATE_SYNC;
|
|
lp->lp_partner.lip_state |= LACP_STATE_TIMEOUT;
|
|
LACP_TIMER_ARM(lp, LACP_TIMER_CURRENT_WHILE, LACP_SHORT_TIMEOUT_TIME);
|
|
lp->lp_state |= LACP_STATE_EXPIRED;
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_timer(struct lacp_port *lp)
|
|
{
|
|
if ((lp->lp_state & LACP_STATE_EXPIRED) == 0) {
|
|
/* CURRENT -> EXPIRED */
|
|
LACP_DPRINTF((lp, "%s: CURRENT -> EXPIRED\n", __func__));
|
|
lacp_sm_rx_set_expired(lp);
|
|
} else {
|
|
/* EXPIRED -> DEFAULTED */
|
|
LACP_DPRINTF((lp, "%s: EXPIRED -> DEFAULTED\n", __func__));
|
|
lacp_sm_rx_update_default_selected(lp);
|
|
lacp_sm_rx_record_default(lp);
|
|
lp->lp_state &= ~LACP_STATE_EXPIRED;
|
|
}
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_record_pdu(struct lacp_port *lp, const struct lacpdu *du)
|
|
{
|
|
boolean_t active;
|
|
uint8_t oldpstate;
|
|
char buf[LACP_STATESTR_MAX+1];
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
oldpstate = lp->lp_partner.lip_state;
|
|
|
|
active = (du->ldu_actor.lip_state & LACP_STATE_ACTIVITY)
|
|
|| ((lp->lp_state & LACP_STATE_ACTIVITY) &&
|
|
(du->ldu_partner.lip_state & LACP_STATE_ACTIVITY));
|
|
|
|
lp->lp_partner = du->ldu_actor;
|
|
if (active &&
|
|
((LACP_STATE_EQ(lp->lp_state, du->ldu_partner.lip_state,
|
|
LACP_STATE_AGGREGATION) &&
|
|
!lacp_compare_peerinfo(&lp->lp_actor, &du->ldu_partner))
|
|
|| (du->ldu_partner.lip_state & LACP_STATE_AGGREGATION) == 0)) {
|
|
/*
|
|
* XXX Maintain legacy behavior of leaving the
|
|
* LACP_STATE_SYNC bit unchanged from the partner's
|
|
* advertisement if lsc_strict_mode is false.
|
|
* TODO: We should re-examine the concept of the "strict mode"
|
|
* to ensure it makes sense to maintain a non-strict mode.
|
|
*/
|
|
if (lp->lp_lsc->lsc_strict_mode)
|
|
lp->lp_partner.lip_state |= LACP_STATE_SYNC;
|
|
} else {
|
|
lp->lp_partner.lip_state &= ~LACP_STATE_SYNC;
|
|
}
|
|
|
|
lp->lp_state &= ~LACP_STATE_DEFAULTED;
|
|
|
|
if (oldpstate != lp->lp_partner.lip_state) {
|
|
LACP_DPRINTF((lp, "old pstate %s\n",
|
|
lacp_format_state(oldpstate, buf, sizeof(buf))));
|
|
LACP_DPRINTF((lp, "new pstate %s\n",
|
|
lacp_format_state(lp->lp_partner.lip_state, buf,
|
|
sizeof(buf))));
|
|
}
|
|
|
|
lacp_sm_ptx_update_timeout(lp, oldpstate);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_update_ntt(struct lacp_port *lp, const struct lacpdu *du)
|
|
{
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
if (lacp_compare_peerinfo(&lp->lp_actor, &du->ldu_partner) ||
|
|
!LACP_STATE_EQ(lp->lp_state, du->ldu_partner.lip_state,
|
|
LACP_STATE_ACTIVITY | LACP_STATE_SYNC | LACP_STATE_AGGREGATION)) {
|
|
LACP_DPRINTF((lp, "%s: assert ntt\n", __func__));
|
|
lacp_sm_assert_ntt(lp);
|
|
}
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_record_default(struct lacp_port *lp)
|
|
{
|
|
uint8_t oldpstate;
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
oldpstate = lp->lp_partner.lip_state;
|
|
if (lp->lp_lsc->lsc_strict_mode)
|
|
lp->lp_partner = lacp_partner_admin_strict;
|
|
else
|
|
lp->lp_partner = lacp_partner_admin_optimistic;
|
|
lp->lp_state |= LACP_STATE_DEFAULTED;
|
|
lacp_sm_ptx_update_timeout(lp, oldpstate);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_update_selected_from_peerinfo(struct lacp_port *lp,
|
|
const struct lacp_peerinfo *info)
|
|
{
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
if (lacp_compare_peerinfo(&lp->lp_partner, info) ||
|
|
!LACP_STATE_EQ(lp->lp_partner.lip_state, info->lip_state,
|
|
LACP_STATE_AGGREGATION)) {
|
|
lp->lp_selected = LACP_UNSELECTED;
|
|
/* mux machine will clean up lp->lp_aggregator */
|
|
}
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_update_selected(struct lacp_port *lp, const struct lacpdu *du)
|
|
{
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
lacp_sm_rx_update_selected_from_peerinfo(lp, &du->ldu_actor);
|
|
}
|
|
|
|
static void
|
|
lacp_sm_rx_update_default_selected(struct lacp_port *lp)
|
|
{
|
|
|
|
LACP_TRACE(lp);
|
|
|
|
if (lp->lp_lsc->lsc_strict_mode)
|
|
lacp_sm_rx_update_selected_from_peerinfo(lp,
|
|
&lacp_partner_admin_strict);
|
|
else
|
|
lacp_sm_rx_update_selected_from_peerinfo(lp,
|
|
&lacp_partner_admin_optimistic);
|
|
}
|
|
|
|
/* transmit machine */
|
|
|
|
static void
|
|
lacp_sm_tx(struct lacp_port *lp)
|
|
{
|
|
int error = 0;
|
|
|
|
if (!(lp->lp_state & LACP_STATE_AGGREGATION)
|
|
#if 1
|
|
|| (!(lp->lp_state & LACP_STATE_ACTIVITY)
|
|
&& !(lp->lp_partner.lip_state & LACP_STATE_ACTIVITY))
|
|
#endif
|
|
) {
|
|
lp->lp_flags &= ~LACP_PORT_NTT;
|
|
}
|
|
|
|
if (!(lp->lp_flags & LACP_PORT_NTT)) {
|
|
return;
|
|
}
|
|
|
|
/* Rate limit to 3 PDUs per LACP_FAST_PERIODIC_TIME */
|
|
if (ppsratecheck(&lp->lp_last_lacpdu, &lp->lp_lacpdu_sent,
|
|
(3 / LACP_FAST_PERIODIC_TIME)) == 0) {
|
|
LACP_DPRINTF((lp, "rate limited pdu\n"));
|
|
return;
|
|
}
|
|
|
|
if (((1 << lp->lp_ifp->if_dunit) & lp->lp_lsc->lsc_debug.lsc_tx_test) == 0) {
|
|
error = lacp_xmit_lacpdu(lp);
|
|
} else {
|
|
LACP_TPRINTF((lp, "Dropping TX PDU\n"));
|
|
}
|
|
|
|
if (error == 0) {
|
|
lp->lp_flags &= ~LACP_PORT_NTT;
|
|
} else {
|
|
LACP_DPRINTF((lp, "lacpdu transmit failure, error %d\n",
|
|
error));
|
|
}
|
|
}
|
|
|
|
static void
|
|
lacp_sm_assert_ntt(struct lacp_port *lp)
|
|
{
|
|
|
|
lp->lp_flags |= LACP_PORT_NTT;
|
|
}
|
|
|
|
static void
|
|
lacp_run_timers(struct lacp_port *lp)
|
|
{
|
|
int i;
|
|
struct timeval time_diff;
|
|
|
|
for (i = 0; i < LACP_NTIMER; i++) {
|
|
KASSERT(lp->lp_timer[i] >= 0,
|
|
("invalid timer value %d", lp->lp_timer[i]));
|
|
if (lp->lp_timer[i] == 0) {
|
|
continue;
|
|
} else {
|
|
if (i == LACP_TIMER_CURRENT_WHILE) {
|
|
microuptime(&time_diff);
|
|
timevalsub(&time_diff, &lp->lp_last_lacpdu_rx);
|
|
if (time_diff.tv_sec) {
|
|
/* At least one sec has elapsed since last LACP packet. */
|
|
--lp->lp_timer[i];
|
|
}
|
|
} else {
|
|
--lp->lp_timer[i];
|
|
}
|
|
|
|
if ((lp->lp_timer[i] <= 0) && (lacp_timer_funcs[i])) {
|
|
(*lacp_timer_funcs[i])(lp);
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
int
|
|
lacp_marker_input(struct lacp_port *lp, struct mbuf *m)
|
|
{
|
|
struct lacp_softc *lsc = lp->lp_lsc;
|
|
struct lagg_port *lgp = lp->lp_lagg;
|
|
struct lacp_port *lp2;
|
|
struct markerdu *mdu;
|
|
int error = 0;
|
|
int pending = 0;
|
|
|
|
if (m->m_pkthdr.len != sizeof(*mdu)) {
|
|
goto bad;
|
|
}
|
|
|
|
if ((m->m_flags & M_MCAST) == 0) {
|
|
goto bad;
|
|
}
|
|
|
|
if (m->m_len < sizeof(*mdu)) {
|
|
m = m_pullup(m, sizeof(*mdu));
|
|
if (m == NULL) {
|
|
return (ENOMEM);
|
|
}
|
|
}
|
|
|
|
mdu = mtod(m, struct markerdu *);
|
|
|
|
if (memcmp(&mdu->mdu_eh.ether_dhost,
|
|
ðermulticastaddr_slowprotocols, ETHER_ADDR_LEN)) {
|
|
goto bad;
|
|
}
|
|
|
|
if (mdu->mdu_sph.sph_version != 1) {
|
|
goto bad;
|
|
}
|
|
|
|
switch (mdu->mdu_tlv.tlv_type) {
|
|
case MARKER_TYPE_INFO:
|
|
if (tlv_check(mdu, sizeof(*mdu), &mdu->mdu_tlv,
|
|
marker_info_tlv_template, TRUE)) {
|
|
goto bad;
|
|
}
|
|
mdu->mdu_tlv.tlv_type = MARKER_TYPE_RESPONSE;
|
|
memcpy(&mdu->mdu_eh.ether_dhost,
|
|
ðermulticastaddr_slowprotocols, ETHER_ADDR_LEN);
|
|
memcpy(&mdu->mdu_eh.ether_shost,
|
|
lgp->lp_lladdr, ETHER_ADDR_LEN);
|
|
error = lagg_enqueue(lp->lp_ifp, m);
|
|
break;
|
|
|
|
case MARKER_TYPE_RESPONSE:
|
|
if (tlv_check(mdu, sizeof(*mdu), &mdu->mdu_tlv,
|
|
marker_response_tlv_template, TRUE)) {
|
|
goto bad;
|
|
}
|
|
LACP_DPRINTF((lp, "marker response, port=%u, sys=%6D, id=%u\n",
|
|
ntohs(mdu->mdu_info.mi_rq_port), mdu->mdu_info.mi_rq_system,
|
|
":", ntohl(mdu->mdu_info.mi_rq_xid)));
|
|
|
|
/* Verify that it is the last marker we sent out */
|
|
if (memcmp(&mdu->mdu_info, &lp->lp_marker,
|
|
sizeof(struct lacp_markerinfo)))
|
|
goto bad;
|
|
|
|
LACP_LOCK(lsc);
|
|
lp->lp_flags &= ~LACP_PORT_MARK;
|
|
|
|
if (lsc->lsc_suppress_distributing) {
|
|
/* Check if any ports are waiting for a response */
|
|
LIST_FOREACH(lp2, &lsc->lsc_ports, lp_next) {
|
|
if (lp2->lp_flags & LACP_PORT_MARK) {
|
|
pending = 1;
|
|
break;
|
|
}
|
|
}
|
|
|
|
if (pending == 0) {
|
|
/* All interface queues are clear */
|
|
LACP_DPRINTF((NULL, "queue flush complete\n"));
|
|
lsc->lsc_suppress_distributing = FALSE;
|
|
}
|
|
}
|
|
LACP_UNLOCK(lsc);
|
|
m_freem(m);
|
|
break;
|
|
|
|
default:
|
|
goto bad;
|
|
}
|
|
|
|
return (error);
|
|
|
|
bad:
|
|
LACP_DPRINTF((lp, "bad marker frame\n"));
|
|
m_freem(m);
|
|
return (EINVAL);
|
|
}
|
|
|
|
static int
|
|
tlv_check(const void *p, size_t size, const struct tlvhdr *tlv,
|
|
const struct tlv_template *tmpl, boolean_t check_type)
|
|
{
|
|
while (/* CONSTCOND */ 1) {
|
|
if ((const char *)tlv - (const char *)p + sizeof(*tlv) > size) {
|
|
return (EINVAL);
|
|
}
|
|
if ((check_type && tlv->tlv_type != tmpl->tmpl_type) ||
|
|
tlv->tlv_length != tmpl->tmpl_length) {
|
|
return (EINVAL);
|
|
}
|
|
if (tmpl->tmpl_type == 0) {
|
|
break;
|
|
}
|
|
tlv = (const struct tlvhdr *)
|
|
((const char *)tlv + tlv->tlv_length);
|
|
tmpl++;
|
|
}
|
|
|
|
return (0);
|
|
}
|
|
|
|
/* Debugging */
|
|
const char *
|
|
lacp_format_mac(const uint8_t *mac, char *buf, size_t buflen)
|
|
{
|
|
snprintf(buf, buflen, "%02X-%02X-%02X-%02X-%02X-%02X",
|
|
(int)mac[0],
|
|
(int)mac[1],
|
|
(int)mac[2],
|
|
(int)mac[3],
|
|
(int)mac[4],
|
|
(int)mac[5]);
|
|
|
|
return (buf);
|
|
}
|
|
|
|
const char *
|
|
lacp_format_systemid(const struct lacp_systemid *sysid,
|
|
char *buf, size_t buflen)
|
|
{
|
|
char macbuf[LACP_MACSTR_MAX+1];
|
|
|
|
snprintf(buf, buflen, "%04X,%s",
|
|
ntohs(sysid->lsi_prio),
|
|
lacp_format_mac(sysid->lsi_mac, macbuf, sizeof(macbuf)));
|
|
|
|
return (buf);
|
|
}
|
|
|
|
const char *
|
|
lacp_format_portid(const struct lacp_portid *portid, char *buf, size_t buflen)
|
|
{
|
|
snprintf(buf, buflen, "%04X,%04X",
|
|
ntohs(portid->lpi_prio),
|
|
ntohs(portid->lpi_portno));
|
|
|
|
return (buf);
|
|
}
|
|
|
|
const char *
|
|
lacp_format_partner(const struct lacp_peerinfo *peer, char *buf, size_t buflen)
|
|
{
|
|
char sysid[LACP_SYSTEMIDSTR_MAX+1];
|
|
char portid[LACP_PORTIDSTR_MAX+1];
|
|
|
|
snprintf(buf, buflen, "(%s,%04X,%s)",
|
|
lacp_format_systemid(&peer->lip_systemid, sysid, sizeof(sysid)),
|
|
ntohs(peer->lip_key),
|
|
lacp_format_portid(&peer->lip_portid, portid, sizeof(portid)));
|
|
|
|
return (buf);
|
|
}
|
|
|
|
const char *
|
|
lacp_format_lagid(const struct lacp_peerinfo *a,
|
|
const struct lacp_peerinfo *b, char *buf, size_t buflen)
|
|
{
|
|
char astr[LACP_PARTNERSTR_MAX+1];
|
|
char bstr[LACP_PARTNERSTR_MAX+1];
|
|
|
|
#if 0
|
|
/*
|
|
* there's a convention to display small numbered peer
|
|
* in the left.
|
|
*/
|
|
|
|
if (lacp_compare_peerinfo(a, b) > 0) {
|
|
const struct lacp_peerinfo *t;
|
|
|
|
t = a;
|
|
a = b;
|
|
b = t;
|
|
}
|
|
#endif
|
|
|
|
snprintf(buf, buflen, "[%s,%s]",
|
|
lacp_format_partner(a, astr, sizeof(astr)),
|
|
lacp_format_partner(b, bstr, sizeof(bstr)));
|
|
|
|
return (buf);
|
|
}
|
|
|
|
const char *
|
|
lacp_format_lagid_aggregator(const struct lacp_aggregator *la,
|
|
char *buf, size_t buflen)
|
|
{
|
|
if (la == NULL) {
|
|
return ("(none)");
|
|
}
|
|
|
|
return (lacp_format_lagid(&la->la_actor, &la->la_partner, buf, buflen));
|
|
}
|
|
|
|
const char *
|
|
lacp_format_state(uint8_t state, char *buf, size_t buflen)
|
|
{
|
|
snprintf(buf, buflen, "%b", state, LACP_STATE_BITS);
|
|
return (buf);
|
|
}
|
|
|
|
static void
|
|
lacp_dump_lacpdu(const struct lacpdu *du)
|
|
{
|
|
char buf[LACP_PARTNERSTR_MAX+1];
|
|
char buf2[LACP_STATESTR_MAX+1];
|
|
|
|
printf("actor=%s\n",
|
|
lacp_format_partner(&du->ldu_actor, buf, sizeof(buf)));
|
|
printf("actor.state=%s\n",
|
|
lacp_format_state(du->ldu_actor.lip_state, buf2, sizeof(buf2)));
|
|
printf("partner=%s\n",
|
|
lacp_format_partner(&du->ldu_partner, buf, sizeof(buf)));
|
|
printf("partner.state=%s\n",
|
|
lacp_format_state(du->ldu_partner.lip_state, buf2, sizeof(buf2)));
|
|
|
|
printf("maxdelay=%d\n", ntohs(du->ldu_collector.lci_maxdelay));
|
|
}
|
|
|
|
static void
|
|
lacp_dprintf(const struct lacp_port *lp, const char *fmt, ...)
|
|
{
|
|
va_list va;
|
|
|
|
if (lp) {
|
|
printf("%s: ", lp->lp_ifp->if_xname);
|
|
}
|
|
|
|
va_start(va, fmt);
|
|
vprintf(fmt, va);
|
|
va_end(va);
|
|
}
|