Index: head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_multicast.c =================================================================== --- head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_multicast.c (revision 353503) +++ head/sys/ofed/drivers/infiniband/ulp/ipoib/ipoib_multicast.c (revision 353504) @@ -1,921 +1,930 @@ /*- * SPDX-License-Identifier: BSD-2-Clause OR GPL-2.0 * * Copyright (c) 2004, 2005 Topspin Communications. All rights reserved. * Copyright (c) 2005 Sun Microsystems, Inc. All rights reserved. * Copyright (c) 2004 Voltaire, Inc. All rights reserved. * * This software is available to you under a choice of one of two * licenses. You may choose to be licensed under the terms of the GNU * General Public License (GPL) Version 2, available from the file * COPYING in the main directory of this source tree, or the * OpenIB.org BSD license below: * * Redistribution and use in source and binary forms, with or * without modification, are permitted provided that the following * conditions are met: * * - Redistributions of source code must retain the above * copyright notice, this list of conditions and the following * disclaimer. * * - Redistributions in binary form must reproduce the above * copyright notice, this list of conditions and the following * disclaimer in the documentation and/or other materials * provided with the distribution. * * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE * SOFTWARE. */ #include __FBSDID("$FreeBSD$"); #include "ipoib.h" #include #include #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG static int mcast_debug_level = 1; module_param(mcast_debug_level, int, 0644); MODULE_PARM_DESC(mcast_debug_level, "Enable multicast debug tracing if > 0"); #endif static DEFINE_MUTEX(mcast_mutex); struct ipoib_mcast_iter { struct ipoib_dev_priv *priv; union ib_gid mgid; unsigned long created; unsigned int queuelen; unsigned int complete; unsigned int send_only; }; static void ipoib_mcast_free(struct ipoib_mcast *mcast) { struct ifnet *dev = mcast->priv->dev; int tx_dropped = 0; ipoib_dbg_mcast(mcast->priv, "deleting multicast group %16D\n", mcast->mcmember.mgid.raw, ":"); if (mcast->ah) ipoib_put_ah(mcast->ah); tx_dropped = mcast->pkt_queue.ifq_len; _IF_DRAIN(&mcast->pkt_queue); /* XXX Locking. */ if_inc_counter(dev, IFCOUNTER_OERRORS, tx_dropped); kfree(mcast); } static struct ipoib_mcast *ipoib_mcast_alloc(struct ipoib_dev_priv *priv, int can_sleep) { struct ipoib_mcast *mcast; mcast = kzalloc(sizeof *mcast, can_sleep ? GFP_KERNEL : GFP_ATOMIC); if (!mcast) return NULL; mcast->priv = priv; mcast->created = jiffies; mcast->backoff = 1; INIT_LIST_HEAD(&mcast->list); bzero(&mcast->pkt_queue, sizeof(mcast->pkt_queue)); return mcast; } static struct ipoib_mcast *__ipoib_mcast_find(struct ipoib_dev_priv *priv, void *mgid) { struct rb_node *n = priv->multicast_tree.rb_node; while (n) { struct ipoib_mcast *mcast; int ret; mcast = rb_entry(n, struct ipoib_mcast, rb_node); ret = memcmp(mgid, mcast->mcmember.mgid.raw, sizeof (union ib_gid)); if (ret < 0) n = n->rb_left; else if (ret > 0) n = n->rb_right; else return mcast; } return NULL; } static int __ipoib_mcast_add(struct ipoib_dev_priv *priv, struct ipoib_mcast *mcast) { struct rb_node **n = &priv->multicast_tree.rb_node, *pn = NULL; while (*n) { struct ipoib_mcast *tmcast; int ret; pn = *n; tmcast = rb_entry(pn, struct ipoib_mcast, rb_node); ret = memcmp(mcast->mcmember.mgid.raw, tmcast->mcmember.mgid.raw, sizeof (union ib_gid)); if (ret < 0) n = &pn->rb_left; else if (ret > 0) n = &pn->rb_right; else return -EEXIST; } rb_link_node(&mcast->rb_node, pn, n); rb_insert_color(&mcast->rb_node, &priv->multicast_tree); return 0; } static int ipoib_mcast_join_finish(struct ipoib_mcast *mcast, struct ib_sa_mcmember_rec *mcmember) { struct ipoib_dev_priv *priv = mcast->priv; struct ifnet *dev = priv->dev; struct ipoib_ah *ah; int ret; int set_qkey = 0; mcast->mcmember = *mcmember; /* Set the cached Q_Key before we attach if it's the broadcast group */ if (!memcmp(mcast->mcmember.mgid.raw, dev->if_broadcastaddr + 4, sizeof (union ib_gid))) { spin_lock_irq(&priv->lock); if (!priv->broadcast) { spin_unlock_irq(&priv->lock); return -EAGAIN; } priv->qkey = be32_to_cpu(priv->broadcast->mcmember.qkey); spin_unlock_irq(&priv->lock); priv->tx_wr.remote_qkey = priv->qkey; set_qkey = 1; } if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { if (test_and_set_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { ipoib_warn(priv, "multicast group %16D already attached\n", mcast->mcmember.mgid.raw, ":"); return 0; } ret = ipoib_mcast_attach(priv, be16_to_cpu(mcast->mcmember.mlid), &mcast->mcmember.mgid, set_qkey); if (ret < 0) { ipoib_warn(priv, "couldn't attach QP to multicast group %16D\n", mcast->mcmember.mgid.raw, ":"); clear_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags); return ret; } } { struct ib_ah_attr av = { .dlid = be16_to_cpu(mcast->mcmember.mlid), .port_num = priv->port, .sl = mcast->mcmember.sl, .ah_flags = IB_AH_GRH, .static_rate = mcast->mcmember.rate, .grh = { .flow_label = be32_to_cpu(mcast->mcmember.flow_label), .hop_limit = mcast->mcmember.hop_limit, .sgid_index = 0, .traffic_class = mcast->mcmember.traffic_class } }; av.grh.dgid = mcast->mcmember.mgid; ah = ipoib_create_ah(priv, priv->pd, &av); if (!ah) { ipoib_warn(priv, "ib_address_create failed\n"); } else { spin_lock_irq(&priv->lock); mcast->ah = ah; spin_unlock_irq(&priv->lock); ipoib_dbg_mcast(priv, "MGID %16D AV %p, LID 0x%04x, SL %d\n", mcast->mcmember.mgid.raw, ":", mcast->ah->ah, be16_to_cpu(mcast->mcmember.mlid), mcast->mcmember.sl); } } /* actually send any queued packets */ while (mcast->pkt_queue.ifq_len) { struct mbuf *mb; _IF_DEQUEUE(&mcast->pkt_queue, mb); mb->m_pkthdr.rcvif = dev; if (dev->if_transmit(dev, mb)) ipoib_warn(priv, "dev_queue_xmit failed to requeue packet\n"); } return 0; } static int ipoib_mcast_sendonly_join_complete(int status, struct ib_sa_multicast *multicast) { struct ipoib_mcast *mcast = multicast->context; struct ipoib_dev_priv *priv = mcast->priv; /* We trap for port events ourselves. */ if (status == -ENETRESET) return 0; if (!status) status = ipoib_mcast_join_finish(mcast, &multicast->rec); if (status) { if (mcast->logcount++ < 20) ipoib_dbg_mcast(priv, "multicast join failed for %16D, status %d\n", mcast->mcmember.mgid.raw, ":", status); /* Flush out any queued packets */ if_inc_counter(priv->dev, IFCOUNTER_OERRORS, mcast->pkt_queue.ifq_len); _IF_DRAIN(&mcast->pkt_queue); /* Clear the busy flag so we try again */ status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); } return status; } static int ipoib_mcast_sendonly_join(struct ipoib_mcast *mcast) { struct ipoib_dev_priv *priv = mcast->priv; struct ib_sa_mcmember_rec rec = { #if 0 /* Some SMs don't support send-only yet */ .join_state = 4 #else .join_state = 1 #endif }; int ret = 0; if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags)) { ipoib_dbg_mcast(priv, "device shutting down, no multicast joins\n"); return -ENODEV; } if (test_and_set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) { ipoib_dbg_mcast(priv, "multicast entry busy, skipping\n"); return -EBUSY; } rec.mgid = mcast->mcmember.mgid; rec.port_gid = priv->local_gid; rec.pkey = cpu_to_be16(priv->pkey); mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port, &rec, IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID | IB_SA_MCMEMBER_REC_PKEY | IB_SA_MCMEMBER_REC_JOIN_STATE, GFP_ATOMIC, ipoib_mcast_sendonly_join_complete, mcast); if (IS_ERR(mcast->mc)) { ret = PTR_ERR(mcast->mc); clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); ipoib_warn(priv, "ib_sa_join_multicast failed (ret = %d)\n", ret); } else { ipoib_dbg_mcast(priv, "no multicast record for %16D, starting join\n", mcast->mcmember.mgid.raw, ":"); } return ret; } void ipoib_mcast_carrier_on_task(struct work_struct *work) { struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, carrier_on_task); struct ib_port_attr attr; /* * Take rtnl_lock to avoid racing with ipoib_stop() and * turning the carrier back on while a device is being * removed. */ if (ib_query_port(priv->ca, priv->port, &attr) || attr.state != IB_PORT_ACTIVE) { ipoib_dbg(priv, "Keeping carrier off until IB port is active\n"); return; } if_link_state_change(priv->dev, LINK_STATE_UP); } static int ipoib_mcast_join_complete(int status, struct ib_sa_multicast *multicast) { struct ipoib_mcast *mcast = multicast->context; struct ipoib_dev_priv *priv = mcast->priv; ipoib_dbg_mcast(priv, "join completion for %16D (status %d)\n", mcast->mcmember.mgid.raw, ":", status); /* We trap for port events ourselves. */ if (status == -ENETRESET) return 0; if (!status) status = ipoib_mcast_join_finish(mcast, &multicast->rec); if (!status) { mcast->backoff = 1; mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, 0); mutex_unlock(&mcast_mutex); /* * Defer carrier on work to ipoib_workqueue to avoid a * deadlock on rtnl_lock here. */ if (mcast == priv->broadcast) queue_work(ipoib_workqueue, &priv->carrier_on_task); return 0; } if (mcast->logcount++ < 20) { if (status == -ETIMEDOUT || status == -EAGAIN) { ipoib_dbg_mcast(priv, "multicast join failed for %16D, status %d\n", mcast->mcmember.mgid.raw, ":", status); } else { ipoib_warn(priv, "multicast join failed for %16D, status %d\n", mcast->mcmember.mgid.raw, ":", status); } } mcast->backoff *= 2; if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS) mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS; /* Clear the busy flag so we try again */ status = test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); mutex_lock(&mcast_mutex); spin_lock_irq(&priv->lock); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, mcast->backoff * HZ); spin_unlock_irq(&priv->lock); mutex_unlock(&mcast_mutex); return status; } static void ipoib_mcast_join(struct ipoib_dev_priv *priv, struct ipoib_mcast *mcast, int create) { struct ib_sa_mcmember_rec rec = { .join_state = 1 }; ib_sa_comp_mask comp_mask; int ret = 0; ipoib_dbg_mcast(priv, "joining MGID %16D\n", mcast->mcmember.mgid.raw, ":"); rec.mgid = mcast->mcmember.mgid; rec.port_gid = priv->local_gid; rec.pkey = cpu_to_be16(priv->pkey); comp_mask = IB_SA_MCMEMBER_REC_MGID | IB_SA_MCMEMBER_REC_PORT_GID | IB_SA_MCMEMBER_REC_PKEY | IB_SA_MCMEMBER_REC_JOIN_STATE; if (create) { comp_mask |= IB_SA_MCMEMBER_REC_QKEY | IB_SA_MCMEMBER_REC_MTU_SELECTOR | IB_SA_MCMEMBER_REC_MTU | IB_SA_MCMEMBER_REC_TRAFFIC_CLASS | IB_SA_MCMEMBER_REC_RATE_SELECTOR | IB_SA_MCMEMBER_REC_RATE | IB_SA_MCMEMBER_REC_SL | IB_SA_MCMEMBER_REC_FLOW_LABEL | IB_SA_MCMEMBER_REC_HOP_LIMIT; rec.qkey = priv->broadcast->mcmember.qkey; rec.mtu_selector = IB_SA_EQ; rec.mtu = priv->broadcast->mcmember.mtu; rec.traffic_class = priv->broadcast->mcmember.traffic_class; rec.rate_selector = IB_SA_EQ; rec.rate = priv->broadcast->mcmember.rate; rec.sl = priv->broadcast->mcmember.sl; rec.flow_label = priv->broadcast->mcmember.flow_label; rec.hop_limit = priv->broadcast->mcmember.hop_limit; } set_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); mcast->mc = ib_sa_join_multicast(&ipoib_sa_client, priv->ca, priv->port, &rec, comp_mask, GFP_KERNEL, ipoib_mcast_join_complete, mcast); if (IS_ERR(mcast->mc)) { clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags); ret = PTR_ERR(mcast->mc); ipoib_warn(priv, "ib_sa_join_multicast failed, status %d\n", ret); mcast->backoff *= 2; if (mcast->backoff > IPOIB_MAX_BACKOFF_SECONDS) mcast->backoff = IPOIB_MAX_BACKOFF_SECONDS; mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, mcast->backoff * HZ); mutex_unlock(&mcast_mutex); } } void ipoib_mcast_join_task(struct work_struct *work) { struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, mcast_task.work); struct ifnet *dev = priv->dev; struct ib_port_attr attr; ipoib_dbg_mcast(priv, "Running join task. flags 0x%lX\n", priv->flags); if (!test_bit(IPOIB_MCAST_RUN, &priv->flags)) return; if (ib_query_port(priv->ca, priv->port, &attr) || attr.state != IB_PORT_ACTIVE) { ipoib_dbg(priv, "%s: port state is not ACTIVE (state = %d) suspend task.\n", __func__, attr.state); return; } if (ib_query_gid(priv->ca, priv->port, 0, &priv->local_gid, NULL)) ipoib_warn(priv, "ib_query_gid() failed\n"); else memcpy(IF_LLADDR(dev) + 4, priv->local_gid.raw, sizeof (union ib_gid)); { struct ib_port_attr attr; if (!ib_query_port(priv->ca, priv->port, &attr)) priv->local_lid = attr.lid; else ipoib_warn(priv, "ib_query_port failed\n"); } if (!priv->broadcast) { struct ipoib_mcast *broadcast; if (!test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) return; broadcast = ipoib_mcast_alloc(priv, 1); if (!broadcast) { ipoib_warn(priv, "failed to allocate broadcast group\n"); mutex_lock(&mcast_mutex); if (test_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, HZ); mutex_unlock(&mcast_mutex); return; } spin_lock_irq(&priv->lock); memcpy(broadcast->mcmember.mgid.raw, dev->if_broadcastaddr + 4, sizeof (union ib_gid)); priv->broadcast = broadcast; __ipoib_mcast_add(priv, priv->broadcast); spin_unlock_irq(&priv->lock); } if (priv->broadcast && !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) { if (priv->broadcast && !test_bit(IPOIB_MCAST_FLAG_BUSY, &priv->broadcast->flags)) ipoib_mcast_join(priv, priv->broadcast, 0); return; } while (1) { struct ipoib_mcast *mcast = NULL; spin_lock_irq(&priv->lock); list_for_each_entry(mcast, &priv->multicast_list, list) { if (!test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags) && !test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags) && !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { /* Found the next unjoined group */ break; } } spin_unlock_irq(&priv->lock); if (&mcast->list == &priv->multicast_list) { /* All done */ break; } ipoib_mcast_join(priv, mcast, 1); return; } spin_lock_irq(&priv->lock); if (priv->broadcast) priv->mcast_mtu = IPOIB_UD_MTU(ib_mtu_enum_to_int(priv->broadcast->mcmember.mtu)); else priv->mcast_mtu = priv->admin_mtu; spin_unlock_irq(&priv->lock); if (!ipoib_cm_admin_enabled(priv)) ipoib_change_mtu(priv, min(priv->mcast_mtu, priv->admin_mtu), true); ipoib_dbg_mcast(priv, "successfully joined all multicast groups\n"); clear_bit(IPOIB_MCAST_RUN, &priv->flags); } int ipoib_mcast_start_thread(struct ipoib_dev_priv *priv) { ipoib_dbg_mcast(priv, "starting multicast thread flags 0x%lX\n", priv->flags); mutex_lock(&mcast_mutex); if (!test_and_set_bit(IPOIB_MCAST_RUN, &priv->flags)) queue_delayed_work(ipoib_workqueue, &priv->mcast_task, 0); mutex_unlock(&mcast_mutex); return 0; } int ipoib_mcast_stop_thread(struct ipoib_dev_priv *priv, int flush) { ipoib_dbg_mcast(priv, "stopping multicast thread\n"); mutex_lock(&mcast_mutex); clear_bit(IPOIB_MCAST_RUN, &priv->flags); cancel_delayed_work(&priv->mcast_task); mutex_unlock(&mcast_mutex); if (flush) flush_workqueue(ipoib_workqueue); return 0; } static int ipoib_mcast_leave(struct ipoib_dev_priv *priv, struct ipoib_mcast *mcast) { int ret = 0; if (test_and_clear_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) ib_sa_free_multicast(mcast->mc); if (test_and_clear_bit(IPOIB_MCAST_FLAG_ATTACHED, &mcast->flags)) { ipoib_dbg_mcast(priv, "leaving MGID %16D\n", mcast->mcmember.mgid.raw, ":"); /* Remove ourselves from the multicast group */ ret = ib_detach_mcast(priv->qp, &mcast->mcmember.mgid, be16_to_cpu(mcast->mcmember.mlid)); if (ret) ipoib_warn(priv, "ib_detach_mcast failed (result = %d)\n", ret); } return 0; } void ipoib_mcast_send(struct ipoib_dev_priv *priv, void *mgid, struct mbuf *mb) { struct ifnet *dev = priv->dev; struct ipoib_mcast *mcast; if (!test_bit(IPOIB_FLAG_OPER_UP, &priv->flags) || !priv->broadcast || !test_bit(IPOIB_MCAST_FLAG_ATTACHED, &priv->broadcast->flags)) { if_inc_counter(dev, IFCOUNTER_OERRORS, 1); m_freem(mb); return; } mcast = __ipoib_mcast_find(priv, mgid); if (!mcast) { /* Let's create a new send only group now */ ipoib_dbg_mcast(priv, "setting up send only multicast group for %16D\n", mgid, ":"); mcast = ipoib_mcast_alloc(priv, 0); if (!mcast) { ipoib_warn(priv, "unable to allocate memory for " "multicast structure\n"); if_inc_counter(dev, IFCOUNTER_OERRORS, 1); m_freem(mb); goto out; } set_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags); memcpy(mcast->mcmember.mgid.raw, mgid, sizeof (union ib_gid)); __ipoib_mcast_add(priv, mcast); list_add_tail(&mcast->list, &priv->multicast_list); } if (!mcast->ah) { if (mcast->pkt_queue.ifq_len < IPOIB_MAX_MCAST_QUEUE) { _IF_ENQUEUE(&mcast->pkt_queue, mb); } else { if_inc_counter(dev, IFCOUNTER_OERRORS, 1); m_freem(mb); } if (test_bit(IPOIB_MCAST_FLAG_BUSY, &mcast->flags)) ipoib_dbg_mcast(priv, "no address vector, " "but multicast join already started\n"); else if (test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) ipoib_mcast_sendonly_join(mcast); /* * If lookup completes between here and out:, don't * want to send packet twice. */ mcast = NULL; } out: if (mcast && mcast->ah) ipoib_send(priv, mb, mcast->ah, IB_MULTICAST_QPN); } void ipoib_mcast_dev_flush(struct ipoib_dev_priv *priv) { LIST_HEAD(remove_list); struct ipoib_mcast *mcast, *tmcast; unsigned long flags; ipoib_dbg_mcast(priv, "flushing multicast list\n"); spin_lock_irqsave(&priv->lock, flags); list_for_each_entry_safe(mcast, tmcast, &priv->multicast_list, list) { list_del(&mcast->list); rb_erase(&mcast->rb_node, &priv->multicast_tree); list_add_tail(&mcast->list, &remove_list); } if (priv->broadcast) { rb_erase(&priv->broadcast->rb_node, &priv->multicast_tree); list_add_tail(&priv->broadcast->list, &remove_list); priv->broadcast = NULL; } spin_unlock_irqrestore(&priv->lock, flags); list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { ipoib_mcast_leave(priv, mcast); ipoib_mcast_free(mcast); } } static int ipoib_mcast_addr_is_valid(const u8 *addr, unsigned int addrlen, const u8 *broadcast) { if (addrlen != INFINIBAND_ALEN) return 0; /* reserved QPN, prefix, scope */ if (memcmp(addr, broadcast, 6)) return 0; /* signature lower, pkey */ if (memcmp(addr + 7, broadcast + 7, 3)) return 0; return 1; } void ipoib_mcast_restart_task(struct work_struct *work) { struct ipoib_dev_priv *priv = container_of(work, struct ipoib_dev_priv, restart_task); ipoib_mcast_restart(priv); } +struct ipoib_mcast_ctx { + struct ipoib_dev_priv *priv; + struct list_head remove_list; +}; + +static u_int +ipoib_process_maddr(void *arg, struct sockaddr_dl *sdl, u_int cnt) +{ + struct ipoib_mcast_ctx *ctx = arg; + struct ipoib_dev_priv *priv = ctx->priv; + struct ipoib_mcast *mcast; + struct ib_sa_mcmember_rec rec; + union ib_gid mgid; + uint8_t *addr; + int addrlen; + + addr = LLADDR(sdl); + addrlen = sdl->sdl_alen; + if (!ipoib_mcast_addr_is_valid(addr, addrlen, + priv->dev->if_broadcastaddr)) + return (0); + + memcpy(mgid.raw, addr + 4, sizeof mgid); + + mcast = __ipoib_mcast_find(priv, &mgid); + if (!mcast || test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { + struct ipoib_mcast *nmcast; + + /* ignore group which is directly joined by userspace */ + if (test_bit(IPOIB_FLAG_UMCAST, &priv->flags) && + !ib_sa_get_mcmember_rec(priv->ca, priv->port, &mgid, &rec)) { + ipoib_dbg_mcast(priv, "ignoring multicast entry for mgid %16D\n", + mgid.raw, ":"); + return (0); + } + + /* Not found or send-only group, let's add a new entry */ + ipoib_dbg_mcast(priv, "adding multicast entry for mgid %16D\n", + mgid.raw, ":"); + + nmcast = ipoib_mcast_alloc(priv, 0); + if (!nmcast) { + ipoib_warn(priv, "unable to allocate memory for multicast structure\n"); + return (0); + } + + set_bit(IPOIB_MCAST_FLAG_FOUND, &nmcast->flags); + + nmcast->mcmember.mgid = mgid; + + if (mcast) { + /* Destroy the send only entry */ + list_move_tail(&mcast->list, &ctx->remove_list); + + rb_replace_node(&mcast->rb_node, + &nmcast->rb_node, + &priv->multicast_tree); + } else + __ipoib_mcast_add(priv, nmcast); + + list_add_tail(&nmcast->list, &priv->multicast_list); + } + + if (mcast) + set_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags); + + return (1); +} + void ipoib_mcast_restart(struct ipoib_dev_priv *priv) { + struct ipoib_mcast_ctx ctx = { priv, + { &ctx.remove_list, &ctx.remove_list }}; struct ifnet *dev = priv->dev; - struct ifmultiaddr *ifma; struct ipoib_mcast *mcast, *tmcast; - LIST_HEAD(remove_list); - struct ib_sa_mcmember_rec rec; - int addrlen; ipoib_dbg_mcast(priv, "restarting multicast task flags 0x%lX\n", priv->flags); ipoib_mcast_stop_thread(priv, 0); - if_maddr_rlock(dev); spin_lock(&priv->lock); /* * Unfortunately, the networking core only gives us a list of all of * the multicast hardware addresses. We need to figure out which ones * are new and which ones have been removed */ /* Clear out the found flag */ list_for_each_entry(mcast, &priv->multicast_list, list) clear_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags); /* Mark all of the entries that are found or don't exist */ + ctx.priv = priv; + if_foreach_llmaddr(dev, ipoib_process_maddr, &ctx); - - CK_STAILQ_FOREACH(ifma, &dev->if_multiaddrs, ifma_link) { - union ib_gid mgid; - uint8_t *addr; - - if (ifma->ifma_addr->sa_family != AF_LINK) - continue; - addr = LLADDR((struct sockaddr_dl *)ifma->ifma_addr); - addrlen = ((struct sockaddr_dl *)ifma->ifma_addr)->sdl_alen; - if (!ipoib_mcast_addr_is_valid(addr, addrlen, - dev->if_broadcastaddr)) - continue; - - memcpy(mgid.raw, addr + 4, sizeof mgid); - - mcast = __ipoib_mcast_find(priv, &mgid); - if (!mcast || test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { - struct ipoib_mcast *nmcast; - - /* ignore group which is directly joined by userspace */ - if (test_bit(IPOIB_FLAG_UMCAST, &priv->flags) && - !ib_sa_get_mcmember_rec(priv->ca, priv->port, &mgid, &rec)) { - ipoib_dbg_mcast(priv, "ignoring multicast entry for mgid %16D\n", - mgid.raw, ":"); - continue; - } - - /* Not found or send-only group, let's add a new entry */ - ipoib_dbg_mcast(priv, "adding multicast entry for mgid %16D\n", - mgid.raw, ":"); - - nmcast = ipoib_mcast_alloc(priv, 0); - if (!nmcast) { - ipoib_warn(priv, "unable to allocate memory for multicast structure\n"); - continue; - } - - set_bit(IPOIB_MCAST_FLAG_FOUND, &nmcast->flags); - - nmcast->mcmember.mgid = mgid; - - if (mcast) { - /* Destroy the send only entry */ - list_move_tail(&mcast->list, &remove_list); - - rb_replace_node(&mcast->rb_node, - &nmcast->rb_node, - &priv->multicast_tree); - } else - __ipoib_mcast_add(priv, nmcast); - - list_add_tail(&nmcast->list, &priv->multicast_list); - } - - if (mcast) - set_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags); - } - /* Remove all of the entries don't exist anymore */ list_for_each_entry_safe(mcast, tmcast, &priv->multicast_list, list) { if (!test_bit(IPOIB_MCAST_FLAG_FOUND, &mcast->flags) && !test_bit(IPOIB_MCAST_FLAG_SENDONLY, &mcast->flags)) { ipoib_dbg_mcast(priv, "deleting multicast group %16D\n", mcast->mcmember.mgid.raw, ":"); rb_erase(&mcast->rb_node, &priv->multicast_tree); /* Move to the remove list */ - list_move_tail(&mcast->list, &remove_list); + list_move_tail(&mcast->list, &ctx.remove_list); } } spin_unlock(&priv->lock); - if_maddr_runlock(dev); /* We have to cancel outside of the spinlock */ - list_for_each_entry_safe(mcast, tmcast, &remove_list, list) { + list_for_each_entry_safe(mcast, tmcast, &ctx.remove_list, list) { ipoib_mcast_leave(mcast->priv, mcast); ipoib_mcast_free(mcast); } if (test_bit(IPOIB_FLAG_ADMIN_UP, &priv->flags)) ipoib_mcast_start_thread(priv); } #ifdef CONFIG_INFINIBAND_IPOIB_DEBUG struct ipoib_mcast_iter *ipoib_mcast_iter_init(struct ipoib_dev_priv *priv) { struct ipoib_mcast_iter *iter; iter = kmalloc(sizeof *iter, GFP_KERNEL); if (!iter) return NULL; iter->priv = priv; memset(iter->mgid.raw, 0, 16); if (ipoib_mcast_iter_next(iter)) { kfree(iter); return NULL; } return iter; } int ipoib_mcast_iter_next(struct ipoib_mcast_iter *iter) { struct ipoib_dev_priv *priv = iter->priv; struct rb_node *n; struct ipoib_mcast *mcast; int ret = 1; spin_lock_irq(&priv->lock); n = rb_first(&priv->multicast_tree); while (n) { mcast = rb_entry(n, struct ipoib_mcast, rb_node); if (memcmp(iter->mgid.raw, mcast->mcmember.mgid.raw, sizeof (union ib_gid)) < 0) { iter->mgid = mcast->mcmember.mgid; iter->created = mcast->created; iter->queuelen = mcast->pkt_queue.ifq_len; iter->complete = !!mcast->ah; iter->send_only = !!(mcast->flags & (1 << IPOIB_MCAST_FLAG_SENDONLY)); ret = 0; break; } n = rb_next(n); } spin_unlock_irq(&priv->lock); return ret; } void ipoib_mcast_iter_read(struct ipoib_mcast_iter *iter, union ib_gid *mgid, unsigned long *created, unsigned int *queuelen, unsigned int *complete, unsigned int *send_only) { *mgid = iter->mgid; *created = iter->created; *queuelen = iter->queuelen; *complete = iter->complete; *send_only = iter->send_only; } #endif /* CONFIG_INFINIBAND_IPOIB_DEBUG */