diff options
author | Arvid Brodin <arvid.brodin@alten.se> | 2014-07-04 21:34:38 (GMT) |
---|---|---|
committer | David S. Miller <davem@davemloft.net> | 2014-07-08 18:35:30 (GMT) |
commit | 70ebe4a47185db15f3c55be9611a1a971237870b (patch) | |
tree | 53e0ba561d76df8ff281db8211f8e6d4792478cb | |
parent | b8125404c242a6336eacaa54047b27cfd3fee68e (diff) | |
download | linux-70ebe4a47185db15f3c55be9611a1a971237870b.tar.xz |
net/hsr: Better variable names and update of contact info.
Signed-off-by: Arvid Brodin <arvid.brodin@alten.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
-rw-r--r-- | net/hsr/hsr_device.c | 207 | ||||
-rw-r--r-- | net/hsr/hsr_device.h | 6 | ||||
-rw-r--r-- | net/hsr/hsr_framereg.c | 108 | ||||
-rw-r--r-- | net/hsr/hsr_framereg.h | 36 | ||||
-rw-r--r-- | net/hsr/hsr_main.c | 170 | ||||
-rw-r--r-- | net/hsr/hsr_main.h | 20 | ||||
-rw-r--r-- | net/hsr/hsr_netlink.c | 54 | ||||
-rw-r--r-- | net/hsr/hsr_netlink.h | 8 |
8 files changed, 304 insertions, 305 deletions
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index e5302b7..4dc2a42 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se * * This file contains device methods for creating, using and destroying * virtual HSR devices. @@ -71,49 +71,49 @@ void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1, void hsr_check_announce(struct net_device *hsr_dev, int old_operstate) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = netdev_priv(hsr_dev); + hsr = netdev_priv(hsr_dev); if ((hsr_dev->operstate == IF_OPER_UP) && (old_operstate != IF_OPER_UP)) { /* Went up */ - hsr_priv->announce_count = 0; - hsr_priv->announce_timer.expires = jiffies + + hsr->announce_count = 0; + hsr->announce_timer.expires = jiffies + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); - add_timer(&hsr_priv->announce_timer); + add_timer(&hsr->announce_timer); } if ((hsr_dev->operstate != IF_OPER_UP) && (old_operstate == IF_OPER_UP)) /* Went down */ - del_timer(&hsr_priv->announce_timer); + del_timer(&hsr->announce_timer); } -int hsr_get_max_mtu(struct hsr_priv *hsr_priv) +int hsr_get_max_mtu(struct hsr_priv *hsr) { int mtu_max; - if (hsr_priv->slave[0] && hsr_priv->slave[1]) - mtu_max = min(hsr_priv->slave[0]->mtu, hsr_priv->slave[1]->mtu); - else if (hsr_priv->slave[0]) - mtu_max = hsr_priv->slave[0]->mtu; - else if (hsr_priv->slave[1]) - mtu_max = hsr_priv->slave[1]->mtu; + if (hsr->slave[0] && hsr->slave[1]) + mtu_max = min(hsr->slave[0]->mtu, hsr->slave[1]->mtu); + else if (hsr->slave[0]) + mtu_max = hsr->slave[0]->mtu; + else if (hsr->slave[1]) + mtu_max = hsr->slave[1]->mtu; else - mtu_max = HSR_TAGLEN; + mtu_max = HSR_HLEN; - return mtu_max - HSR_TAGLEN; + return mtu_max - HSR_HLEN; } static int hsr_dev_change_mtu(struct net_device *dev, int new_mtu) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = netdev_priv(dev); + hsr = netdev_priv(dev); - if (new_mtu > hsr_get_max_mtu(hsr_priv)) { - netdev_info(hsr_priv->dev, "A HSR master's MTU cannot be greater than the smallest MTU of its slaves minus the HSR Tag length (%d octets).\n", - HSR_TAGLEN); + if (new_mtu > hsr_get_max_mtu(hsr)) { + netdev_info(hsr->dev, "A HSR master's MTU cannot be greater than the smallest MTU of its slaves minus the HSR Tag length (%d octets).\n", + HSR_HLEN); return -EINVAL; } @@ -124,19 +124,19 @@ static int hsr_dev_change_mtu(struct net_device *dev, int new_mtu) static int hsr_dev_open(struct net_device *dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; int i; char *slave_name; - hsr_priv = netdev_priv(dev); + hsr = netdev_priv(dev); for (i = 0; i < HSR_MAX_SLAVE; i++) { - if (hsr_priv->slave[i]) - slave_name = hsr_priv->slave[i]->name; + if (hsr->slave[i]) + slave_name = hsr->slave[i]->name; else slave_name = "null"; - if (!is_slave_up(hsr_priv->slave[i])) + if (!is_slave_up(hsr->slave[i])) netdev_warn(dev, "Slave %c (%s) is not up; please bring it up to get a working HSR network\n", 'A' + i, slave_name); } @@ -156,7 +156,7 @@ static int hsr_dev_close(struct net_device *dev) } -static void hsr_fill_tag(struct hsr_ethhdr *hsr_ethhdr, struct hsr_priv *hsr_priv) +static void hsr_fill_tag(struct hsr_ethhdr *hsr_ethhdr, struct hsr_priv *hsr) { unsigned long irqflags; @@ -185,26 +185,26 @@ static void hsr_fill_tag(struct hsr_ethhdr *hsr_ethhdr, struct hsr_priv *hsr_pri */ set_hsr_tag_LSDU_size(&hsr_ethhdr->hsr_tag, 0); - spin_lock_irqsave(&hsr_priv->seqnr_lock, irqflags); - hsr_ethhdr->hsr_tag.sequence_nr = htons(hsr_priv->sequence_nr); - hsr_priv->sequence_nr++; - spin_unlock_irqrestore(&hsr_priv->seqnr_lock, irqflags); + spin_lock_irqsave(&hsr->seqnr_lock, irqflags); + hsr_ethhdr->hsr_tag.sequence_nr = htons(hsr->sequence_nr); + hsr->sequence_nr++; + spin_unlock_irqrestore(&hsr->seqnr_lock, irqflags); hsr_ethhdr->hsr_tag.encap_proto = hsr_ethhdr->ethhdr.h_proto; hsr_ethhdr->ethhdr.h_proto = htons(ETH_P_PRP); } -static int slave_xmit(struct sk_buff *skb, struct hsr_priv *hsr_priv, +static int slave_xmit(struct sk_buff *skb, struct hsr_priv *hsr, enum hsr_dev_idx dev_idx) { struct hsr_ethhdr *hsr_ethhdr; hsr_ethhdr = (struct hsr_ethhdr *) skb->data; - skb->dev = hsr_priv->slave[dev_idx]; + skb->dev = hsr->slave[dev_idx]; - hsr_addr_subst_dest(hsr_priv, &hsr_ethhdr->ethhdr, dev_idx); + hsr_addr_subst_dest(hsr, &hsr_ethhdr->ethhdr, dev_idx); /* Address substitution (IEC62439-3 pp 26, 50): replace mac * address of outgoing frame with that of the outgoing slave's. @@ -217,36 +217,36 @@ static int slave_xmit(struct sk_buff *skb, struct hsr_priv *hsr_priv, static int hsr_dev_xmit(struct sk_buff *skb, struct net_device *dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; struct hsr_ethhdr *hsr_ethhdr; struct sk_buff *skb2; int res1, res2; - hsr_priv = netdev_priv(dev); + hsr = netdev_priv(dev); hsr_ethhdr = (struct hsr_ethhdr *) skb->data; if ((skb->protocol != htons(ETH_P_PRP)) || (hsr_ethhdr->ethhdr.h_proto != htons(ETH_P_PRP))) { - hsr_fill_tag(hsr_ethhdr, hsr_priv); + hsr_fill_tag(hsr_ethhdr, hsr); skb->protocol = htons(ETH_P_PRP); } skb2 = pskb_copy(skb, GFP_ATOMIC); res1 = NET_XMIT_DROP; - if (likely(hsr_priv->slave[HSR_DEV_SLAVE_A])) - res1 = slave_xmit(skb, hsr_priv, HSR_DEV_SLAVE_A); + if (likely(hsr->slave[HSR_DEV_SLAVE_A])) + res1 = slave_xmit(skb, hsr, HSR_DEV_SLAVE_A); res2 = NET_XMIT_DROP; - if (likely(skb2 && hsr_priv->slave[HSR_DEV_SLAVE_B])) - res2 = slave_xmit(skb2, hsr_priv, HSR_DEV_SLAVE_B); + if (likely(skb2 && hsr->slave[HSR_DEV_SLAVE_B])) + res2 = slave_xmit(skb2, hsr, HSR_DEV_SLAVE_B); if (likely(res1 == NET_XMIT_SUCCESS || res1 == NET_XMIT_CN || res2 == NET_XMIT_SUCCESS || res2 == NET_XMIT_CN)) { - hsr_priv->dev->stats.tx_packets++; - hsr_priv->dev->stats.tx_bytes += skb->len; + hsr->dev->stats.tx_packets++; + hsr->dev->stats.tx_bytes += skb->len; } else { - hsr_priv->dev->stats.tx_dropped++; + hsr->dev->stats.tx_dropped++; } return NETDEV_TX_OK; @@ -262,21 +262,21 @@ static int hsr_header_create(struct sk_buff *skb, struct net_device *dev, /* Make room for the HSR tag now. We will fill it in later (in * hsr_dev_xmit) */ - if (skb_headroom(skb) < HSR_TAGLEN + ETH_HLEN) + if (skb_headroom(skb) < HSR_HLEN + ETH_HLEN) return -ENOBUFS; - skb_push(skb, HSR_TAGLEN); + skb_push(skb, HSR_HLEN); /* To allow VLAN/HSR combos we should probably use - * res = dev_hard_header(skb, dev, type, daddr, saddr, len + HSR_TAGLEN); + * res = dev_hard_header(skb, dev, type, daddr, saddr, len + HSR_HLEN); * here instead. It would require other changes too, though - e.g. * separate headers for each slave etc... */ - res = eth_header(skb, dev, type, daddr, saddr, len + HSR_TAGLEN); + res = eth_header(skb, dev, type, daddr, saddr, len + HSR_HLEN); if (res <= 0) return res; skb_reset_mac_header(skb); - return res + HSR_TAGLEN; + return res + HSR_HLEN; } @@ -291,7 +291,7 @@ static const struct header_ops hsr_header_ops = { */ static int hsr_pad(int size) { - const int min_size = ETH_ZLEN - HSR_TAGLEN - ETH_HLEN; + const int min_size = ETH_ZLEN - HSR_HLEN - ETH_HLEN; if (size >= min_size) return size; @@ -300,7 +300,7 @@ static int hsr_pad(int size) static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; struct sk_buff *skb; int hlen, tlen; struct hsr_sup_tag *hsr_stag; @@ -315,7 +315,7 @@ static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type) if (skb == NULL) return; - hsr_priv = netdev_priv(hsr_dev); + hsr = netdev_priv(hsr_dev); skb_reserve(skb, hlen); @@ -324,7 +324,7 @@ static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type) skb->priority = TC_PRIO_CONTROL; if (dev_hard_header(skb, skb->dev, ETH_P_PRP, - hsr_priv->sup_multicast_addr, + hsr->sup_multicast_addr, skb->dev->dev_addr, skb->len) < 0) goto out; @@ -334,10 +334,10 @@ static void send_hsr_supervision_frame(struct net_device *hsr_dev, u8 type) set_hsr_stag_path(hsr_stag, 0xf); set_hsr_stag_HSR_Ver(hsr_stag, 0); - spin_lock_irqsave(&hsr_priv->seqnr_lock, irqflags); - hsr_stag->sequence_nr = htons(hsr_priv->sequence_nr); - hsr_priv->sequence_nr++; - spin_unlock_irqrestore(&hsr_priv->seqnr_lock, irqflags); + spin_lock_irqsave(&hsr->seqnr_lock, irqflags); + hsr_stag->sequence_nr = htons(hsr->sequence_nr); + hsr->sequence_nr++; + spin_unlock_irqrestore(&hsr->seqnr_lock, irqflags); hsr_stag->HSR_TLV_Type = type; hsr_stag->HSR_TLV_Length = 12; @@ -360,48 +360,48 @@ out: */ static void hsr_announce(unsigned long data) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = (struct hsr_priv *) data; + hsr = (struct hsr_priv *) data; - if (hsr_priv->announce_count < 3) { - send_hsr_supervision_frame(hsr_priv->dev, HSR_TLV_ANNOUNCE); - hsr_priv->announce_count++; + if (hsr->announce_count < 3) { + send_hsr_supervision_frame(hsr->dev, HSR_TLV_ANNOUNCE); + hsr->announce_count++; } else { - send_hsr_supervision_frame(hsr_priv->dev, HSR_TLV_LIFE_CHECK); + send_hsr_supervision_frame(hsr->dev, HSR_TLV_LIFE_CHECK); } - if (hsr_priv->announce_count < 3) - hsr_priv->announce_timer.expires = jiffies + + if (hsr->announce_count < 3) + hsr->announce_timer.expires = jiffies + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); else - hsr_priv->announce_timer.expires = jiffies + + hsr->announce_timer.expires = jiffies + msecs_to_jiffies(HSR_LIFE_CHECK_INTERVAL); - if (is_admin_up(hsr_priv->dev)) - add_timer(&hsr_priv->announce_timer); + if (is_admin_up(hsr->dev)) + add_timer(&hsr->announce_timer); } static void restore_slaves(struct net_device *hsr_dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; int i; int res; - hsr_priv = netdev_priv(hsr_dev); + hsr = netdev_priv(hsr_dev); rtnl_lock(); /* Restore promiscuity */ for (i = 0; i < HSR_MAX_SLAVE; i++) { - if (!hsr_priv->slave[i]) + if (!hsr->slave[i]) continue; - res = dev_set_promiscuity(hsr_priv->slave[i], -1); + res = dev_set_promiscuity(hsr->slave[i], -1); if (res) netdev_info(hsr_dev, "Cannot restore slave promiscuity (%s, %d)\n", - hsr_priv->slave[i]->name, res); + hsr->slave[i]->name, res); } rtnl_unlock(); @@ -409,10 +409,10 @@ static void restore_slaves(struct net_device *hsr_dev) static void reclaim_hsr_dev(struct rcu_head *rh) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = container_of(rh, struct hsr_priv, rcu_head); - free_netdev(hsr_priv->dev); + hsr = container_of(rh, struct hsr_priv, rcu_head); + free_netdev(hsr->dev); } @@ -421,14 +421,14 @@ static void reclaim_hsr_dev(struct rcu_head *rh) */ static void hsr_dev_destroy(struct net_device *hsr_dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = netdev_priv(hsr_dev); + hsr = netdev_priv(hsr_dev); - del_timer(&hsr_priv->announce_timer); - unregister_hsr_master(hsr_priv); /* calls list_del_rcu on hsr_priv */ + del_timer(&hsr->announce_timer); + unregister_hsr_master(hsr); /* calls list_del_rcu on hsr */ restore_slaves(hsr_dev); - call_rcu(&hsr_priv->rcu_head, reclaim_hsr_dev); /* reclaim hsr_priv */ + call_rcu(&hsr->rcu_head, reclaim_hsr_dev); /* reclaim hsr */ } static const struct net_device_ops hsr_device_ops = { @@ -500,27 +500,27 @@ static const unsigned char def_multicast_addr[ETH_ALEN] __aligned(2) = { int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], unsigned char multicast_spec) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; int i; int res; - hsr_priv = netdev_priv(hsr_dev); - hsr_priv->dev = hsr_dev; - INIT_LIST_HEAD(&hsr_priv->node_db); - INIT_LIST_HEAD(&hsr_priv->self_node_db); + hsr = netdev_priv(hsr_dev); + hsr->dev = hsr_dev; + INIT_LIST_HEAD(&hsr->node_db); + INIT_LIST_HEAD(&hsr->self_node_db); for (i = 0; i < HSR_MAX_SLAVE; i++) - hsr_priv->slave[i] = slave[i]; + hsr->slave[i] = slave[i]; - spin_lock_init(&hsr_priv->seqnr_lock); + spin_lock_init(&hsr->seqnr_lock); /* Overflow soon to find bugs easier: */ - hsr_priv->sequence_nr = USHRT_MAX - 1024; + hsr->sequence_nr = USHRT_MAX - 1024; - init_timer(&hsr_priv->announce_timer); - hsr_priv->announce_timer.function = hsr_announce; - hsr_priv->announce_timer.data = (unsigned long) hsr_priv; + init_timer(&hsr->announce_timer); + hsr->announce_timer.function = hsr_announce; + hsr->announce_timer.data = (unsigned long) hsr; - ether_addr_copy(hsr_priv->sup_multicast_addr, def_multicast_addr); - hsr_priv->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec; + ether_addr_copy(hsr->sup_multicast_addr, def_multicast_addr); + hsr->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec; /* FIXME: should I modify the value of these? * @@ -547,20 +547,20 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], hsr_dev->features |= NETIF_F_VLAN_CHALLENGED; /* Set hsr_dev's MAC address to that of mac_slave1 */ - ether_addr_copy(hsr_dev->dev_addr, hsr_priv->slave[0]->dev_addr); + ether_addr_copy(hsr_dev->dev_addr, hsr->slave[0]->dev_addr); /* Set required header length */ for (i = 0; i < HSR_MAX_SLAVE; i++) { - if (slave[i]->hard_header_len + HSR_TAGLEN > + if (slave[i]->hard_header_len + HSR_HLEN > hsr_dev->hard_header_len) hsr_dev->hard_header_len = - slave[i]->hard_header_len + HSR_TAGLEN; + slave[i]->hard_header_len + HSR_HLEN; } /* MTU */ for (i = 0; i < HSR_MAX_SLAVE; i++) - if (slave[i]->mtu - HSR_TAGLEN < hsr_dev->mtu) - hsr_dev->mtu = slave[i]->mtu - HSR_TAGLEN; + if (slave[i]->mtu - HSR_HLEN < hsr_dev->mtu) + hsr_dev->mtu = slave[i]->mtu - HSR_HLEN; /* Make sure the 1st call to netif_carrier_on() gets through */ netif_carrier_off(hsr_dev); @@ -576,9 +576,8 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], } /* Make sure we recognize frames from ourselves in hsr_rcv() */ - res = hsr_create_self_node(&hsr_priv->self_node_db, - hsr_dev->dev_addr, - hsr_priv->slave[1]->dev_addr); + res = hsr_create_self_node(&hsr->self_node_db, hsr_dev->dev_addr, + hsr->slave[1]->dev_addr); if (res < 0) goto fail; @@ -586,7 +585,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], if (res) goto fail; - register_hsr_master(hsr_priv); + register_hsr_master(hsr); return 0; diff --git a/net/hsr/hsr_device.h b/net/hsr/hsr_device.h index 2c7148e..feb744f 100644 --- a/net/hsr/hsr_device.h +++ b/net/hsr/hsr_device.h @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se */ #ifndef __HSR_DEVICE_H @@ -24,6 +24,6 @@ void hsr_set_carrier(struct net_device *hsr_dev, struct net_device *slave1, struct net_device *slave2); void hsr_check_announce(struct net_device *hsr_dev, int old_operstate); bool is_hsr_master(struct net_device *dev); -int hsr_get_max_mtu(struct hsr_priv *hsr_priv); +int hsr_get_max_mtu(struct hsr_priv *hsr); #endif /* __HSR_DEVICE_H */ diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 83e5844..b419edb 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se * * The HSR spec says never to forward the same frame twice on the same * interface. A frame is identified by its source MAC address and its HSR @@ -23,17 +23,17 @@ #include "hsr_netlink.h" -struct node_entry { - struct list_head mac_list; - unsigned char MacAddressA[ETH_ALEN]; - unsigned char MacAddressB[ETH_ALEN]; - enum hsr_dev_idx AddrB_if; /* The local slave through which AddrB - * frames are received from this node - */ - unsigned long time_in[HSR_MAX_SLAVE]; - bool time_in_stale[HSR_MAX_SLAVE]; - u16 seq_out[HSR_MAX_DEV]; - struct rcu_head rcu_head; +struct hsr_node { + struct list_head mac_list; + unsigned char MacAddressA[ETH_ALEN]; + unsigned char MacAddressB[ETH_ALEN]; + enum hsr_dev_idx AddrB_if;/* The local slave through which AddrB + * frames are received from this node + */ + unsigned long time_in[HSR_MAX_SLAVE]; + bool time_in_stale[HSR_MAX_SLAVE]; + u16 seq_out[HSR_MAX_DEV]; + struct rcu_head rcu_head; }; /* TODO: use hash lists for mac addresses (linux/jhash.h)? */ @@ -42,10 +42,10 @@ struct node_entry { /* Search for mac entry. Caller must hold rcu read lock. */ -static struct node_entry *find_node_by_AddrA(struct list_head *node_db, - const unsigned char addr[ETH_ALEN]) +static struct hsr_node *find_node_by_AddrA(struct list_head *node_db, + const unsigned char addr[ETH_ALEN]) { - struct node_entry *node; + struct hsr_node *node; list_for_each_entry_rcu(node, node_db, mac_list) { if (ether_addr_equal(node->MacAddressA, addr)) @@ -58,10 +58,10 @@ static struct node_entry *find_node_by_AddrA(struct list_head *node_db, /* Search for mac entry. Caller must hold rcu read lock. */ -static struct node_entry *find_node_by_AddrB(struct list_head *node_db, - const unsigned char addr[ETH_ALEN]) +static struct hsr_node *find_node_by_AddrB(struct list_head *node_db, + const unsigned char addr[ETH_ALEN]) { - struct node_entry *node; + struct hsr_node *node; list_for_each_entry_rcu(node, node_db, mac_list) { if (ether_addr_equal(node->MacAddressB, addr)) @@ -74,9 +74,9 @@ static struct node_entry *find_node_by_AddrB(struct list_head *node_db, /* Search for mac entry. Caller must hold rcu read lock. */ -struct node_entry *hsr_find_node(struct list_head *node_db, struct sk_buff *skb) +struct hsr_node *hsr_find_node(struct list_head *node_db, struct sk_buff *skb) { - struct node_entry *node; + struct hsr_node *node; struct ethhdr *ethhdr; if (!skb_mac_header_was_set(skb)) @@ -102,7 +102,7 @@ int hsr_create_self_node(struct list_head *self_node_db, unsigned char addr_a[ETH_ALEN], unsigned char addr_b[ETH_ALEN]) { - struct node_entry *node, *oldnode; + struct hsr_node *node, *oldnode; node = kmalloc(sizeof(*node), GFP_KERNEL); if (!node) @@ -113,7 +113,7 @@ int hsr_create_self_node(struct list_head *self_node_db, rcu_read_lock(); oldnode = list_first_or_null_rcu(self_node_db, - struct node_entry, mac_list); + struct hsr_node, mac_list); if (oldnode) { list_replace_rcu(&oldnode->mac_list, &node->mac_list); rcu_read_unlock(); @@ -154,10 +154,10 @@ int hsr_create_self_node(struct list_head *self_node_db, * We also need to detect if the sender's SlaveA and SlaveB cables have been * swapped. */ -struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, - struct node_entry *node, - struct sk_buff *skb, - enum hsr_dev_idx dev_idx) +struct hsr_node *hsr_merge_node(struct hsr_priv *hsr, + struct hsr_node *node, + struct sk_buff *skb, + enum hsr_dev_idx dev_idx) { struct hsr_sup_payload *hsr_sp; struct hsr_ethhdr_sp *hsr_ethsup; @@ -194,7 +194,7 @@ struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, if (node) return node; - node = find_node_by_AddrA(&hsr_priv->node_db, hsr_sp->MacAddressA); + node = find_node_by_AddrA(&hsr->node_db, hsr_sp->MacAddressA); if (node) { /* Node is known, but frame was received from an unknown * address. Node is PICS_SUBS capable; merge its AddrB. @@ -224,7 +224,7 @@ struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, for (i = 0; i < HSR_MAX_DEV; i++) node->seq_out[i] = ntohs(hsr_ethsup->hsr_sup.sequence_nr) - 1; - list_add_tail_rcu(&node->mac_list, &hsr_priv->node_db); + list_add_tail_rcu(&node->mac_list, &hsr->node_db); return node; } @@ -236,10 +236,10 @@ struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, * address with that node's "official" address (MacAddressA) so that upper * layers recognize where it came from. */ -void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb) +void hsr_addr_subst_source(struct hsr_priv *hsr, struct sk_buff *skb) { struct ethhdr *ethhdr; - struct node_entry *node; + struct hsr_node *node; if (!skb_mac_header_was_set(skb)) { WARN_ONCE(1, "%s: Mac header not set\n", __func__); @@ -248,7 +248,7 @@ void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb) ethhdr = (struct ethhdr *) skb_mac_header(skb); rcu_read_lock(); - node = find_node_by_AddrB(&hsr_priv->node_db, ethhdr->h_source); + node = find_node_by_AddrB(&hsr->node_db, ethhdr->h_source); if (node) ether_addr_copy(ethhdr->h_source, node->MacAddressA); rcu_read_unlock(); @@ -264,13 +264,13 @@ void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb) * This is needed to keep the packets flowing through switches that learn on * which "side" the different interfaces are. */ -void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr, +void hsr_addr_subst_dest(struct hsr_priv *hsr, struct ethhdr *ethhdr, enum hsr_dev_idx dev_idx) { - struct node_entry *node; + struct hsr_node *node; rcu_read_lock(); - node = find_node_by_AddrA(&hsr_priv->node_db, ethhdr->h_dest); + node = find_node_by_AddrA(&hsr->node_db, ethhdr->h_dest); if (node && (node->AddrB_if == dev_idx)) ether_addr_copy(ethhdr->h_dest, node->MacAddressB); rcu_read_unlock(); @@ -295,7 +295,7 @@ static bool seq_nr_after(u16 a, u16 b) #define seq_nr_before_or_eq(a, b) (!seq_nr_after((a), (b))) -void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx) +void hsr_register_frame_in(struct hsr_node *node, enum hsr_dev_idx dev_idx) { if ((dev_idx < 0) || (dev_idx >= HSR_MAX_SLAVE)) { WARN_ONCE(1, "%s: Invalid dev_idx (%d)\n", __func__, dev_idx); @@ -314,7 +314,7 @@ void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx) * 0 otherwise, or * negative error code on error */ -int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx, +int hsr_register_frame_out(struct hsr_node *node, enum hsr_dev_idx dev_idx, struct sk_buff *skb) { struct hsr_ethhdr *hsr_ethhdr; @@ -340,7 +340,7 @@ int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx, -static bool is_late(struct node_entry *node, enum hsr_dev_idx dev_idx) +static bool is_late(struct hsr_node *node, enum hsr_dev_idx dev_idx) { enum hsr_dev_idx other; @@ -366,14 +366,14 @@ static bool is_late(struct node_entry *node, enum hsr_dev_idx dev_idx) /* Remove stale sequence_nr records. Called by timer every * HSR_LIFE_CHECK_INTERVAL (two seconds or so). */ -void hsr_prune_nodes(struct hsr_priv *hsr_priv) +void hsr_prune_nodes(struct hsr_priv *hsr) { - struct node_entry *node; + struct hsr_node *node; unsigned long timestamp; unsigned long time_a, time_b; rcu_read_lock(); - list_for_each_entry_rcu(node, &hsr_priv->node_db, mac_list) { + list_for_each_entry_rcu(node, &hsr->node_db, mac_list) { /* Shorthand */ time_a = node->time_in[HSR_DEV_SLAVE_A]; time_b = node->time_in[HSR_DEV_SLAVE_B]; @@ -399,17 +399,17 @@ void hsr_prune_nodes(struct hsr_priv *hsr_priv) msecs_to_jiffies(1.5*MAX_SLAVE_DIFF))) { if (is_late(node, HSR_DEV_SLAVE_A)) - hsr_nl_ringerror(hsr_priv, node->MacAddressA, + hsr_nl_ringerror(hsr, node->MacAddressA, HSR_DEV_SLAVE_A); else if (is_late(node, HSR_DEV_SLAVE_B)) - hsr_nl_ringerror(hsr_priv, node->MacAddressA, + hsr_nl_ringerror(hsr, node->MacAddressA, HSR_DEV_SLAVE_B); } /* Prune old entries */ if (time_is_before_jiffies(timestamp + msecs_to_jiffies(HSR_NODE_FORGET_TIME))) { - hsr_nl_nodedown(hsr_priv, node->MacAddressA); + hsr_nl_nodedown(hsr, node->MacAddressA); list_del_rcu(&node->mac_list); /* Note that we need to free this entry later: */ kfree_rcu(node, rcu_head); @@ -419,21 +419,21 @@ void hsr_prune_nodes(struct hsr_priv *hsr_priv) } -void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos, +void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos, unsigned char addr[ETH_ALEN]) { - struct node_entry *node; + struct hsr_node *node; if (!_pos) { - node = list_first_or_null_rcu(&hsr_priv->node_db, - struct node_entry, mac_list); + node = list_first_or_null_rcu(&hsr->node_db, + struct hsr_node, mac_list); if (node) ether_addr_copy(addr, node->MacAddressA); return node; } node = _pos; - list_for_each_entry_continue_rcu(node, &hsr_priv->node_db, mac_list) { + list_for_each_entry_continue_rcu(node, &hsr->node_db, mac_list) { ether_addr_copy(addr, node->MacAddressA); return node; } @@ -442,7 +442,7 @@ void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos, } -int hsr_get_node_data(struct hsr_priv *hsr_priv, +int hsr_get_node_data(struct hsr_priv *hsr, const unsigned char *addr, unsigned char addr_b[ETH_ALEN], unsigned int *addr_b_ifindex, @@ -451,12 +451,12 @@ int hsr_get_node_data(struct hsr_priv *hsr_priv, int *if2_age, u16 *if2_seq) { - struct node_entry *node; + struct hsr_node *node; unsigned long tdiff; rcu_read_lock(); - node = find_node_by_AddrA(&hsr_priv->node_db, addr); + node = find_node_by_AddrA(&hsr->node_db, addr); if (!node) { rcu_read_unlock(); return -ENOENT; /* No such entry */ @@ -488,8 +488,8 @@ int hsr_get_node_data(struct hsr_priv *hsr_priv, *if1_seq = node->seq_out[HSR_DEV_SLAVE_B]; *if2_seq = node->seq_out[HSR_DEV_SLAVE_A]; - if ((node->AddrB_if != HSR_DEV_NONE) && hsr_priv->slave[node->AddrB_if]) - *addr_b_ifindex = hsr_priv->slave[node->AddrB_if]->ifindex; + if ((node->AddrB_if != HSR_DEV_NONE) && hsr->slave[node->AddrB_if]) + *addr_b_ifindex = hsr->slave[node->AddrB_if]->ifindex; else *addr_b_ifindex = -1; diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h index e6c4022..3675139 100644 --- a/net/hsr/hsr_framereg.h +++ b/net/hsr/hsr_framereg.h @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,42 +6,42 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se */ -#ifndef _HSR_FRAMEREG_H -#define _HSR_FRAMEREG_H +#ifndef __HSR_FRAMEREG_H +#define __HSR_FRAMEREG_H #include "hsr_main.h" -struct node_entry; +struct hsr_node; -struct node_entry *hsr_find_node(struct list_head *node_db, struct sk_buff *skb); +struct hsr_node *hsr_find_node(struct list_head *node_db, struct sk_buff *skb); -struct node_entry *hsr_merge_node(struct hsr_priv *hsr_priv, - struct node_entry *node, - struct sk_buff *skb, - enum hsr_dev_idx dev_idx); +struct hsr_node *hsr_merge_node(struct hsr_priv *hsr, + struct hsr_node *node, + struct sk_buff *skb, + enum hsr_dev_idx dev_idx); -void hsr_addr_subst_source(struct hsr_priv *hsr_priv, struct sk_buff *skb); -void hsr_addr_subst_dest(struct hsr_priv *hsr_priv, struct ethhdr *ethhdr, +void hsr_addr_subst_source(struct hsr_priv *hsr, struct sk_buff *skb); +void hsr_addr_subst_dest(struct hsr_priv *hsr, struct ethhdr *ethhdr, enum hsr_dev_idx dev_idx); -void hsr_register_frame_in(struct node_entry *node, enum hsr_dev_idx dev_idx); +void hsr_register_frame_in(struct hsr_node *node, enum hsr_dev_idx dev_idx); -int hsr_register_frame_out(struct node_entry *node, enum hsr_dev_idx dev_idx, +int hsr_register_frame_out(struct hsr_node *node, enum hsr_dev_idx dev_idx, struct sk_buff *skb); -void hsr_prune_nodes(struct hsr_priv *hsr_priv); +void hsr_prune_nodes(struct hsr_priv *hsr); int hsr_create_self_node(struct list_head *self_node_db, unsigned char addr_a[ETH_ALEN], unsigned char addr_b[ETH_ALEN]); -void *hsr_get_next_node(struct hsr_priv *hsr_priv, void *_pos, +void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos, unsigned char addr[ETH_ALEN]); -int hsr_get_node_data(struct hsr_priv *hsr_priv, +int hsr_get_node_data(struct hsr_priv *hsr, const unsigned char *addr, unsigned char addr_b[ETH_ALEN], unsigned int *addr_b_ifindex, @@ -50,4 +50,4 @@ int hsr_get_node_data(struct hsr_priv *hsr_priv, int *if2_age, u16 *if2_seq); -#endif /* _HSR_FRAMEREG_H */ +#endif /* __HSR_FRAMEREG_H */ diff --git a/net/hsr/hsr_main.c b/net/hsr/hsr_main.c index 3fee521..99b8fc4 100644 --- a/net/hsr/hsr_main.c +++ b/net/hsr/hsr_main.c @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se * * In addition to routines for registering and unregistering HSR support, this * file also contains the receive routine that handles all incoming frames with @@ -26,30 +26,30 @@ /* List of all registered virtual HSR devices */ static LIST_HEAD(hsr_list); -void register_hsr_master(struct hsr_priv *hsr_priv) +void register_hsr_master(struct hsr_priv *hsr) { - list_add_tail_rcu(&hsr_priv->hsr_list, &hsr_list); + list_add_tail_rcu(&hsr->hsr_list, &hsr_list); } -void unregister_hsr_master(struct hsr_priv *hsr_priv) +void unregister_hsr_master(struct hsr_priv *hsr) { - struct hsr_priv *hsr_priv_it; + struct hsr_priv *hsr_it; - list_for_each_entry(hsr_priv_it, &hsr_list, hsr_list) - if (hsr_priv_it == hsr_priv) { - list_del_rcu(&hsr_priv_it->hsr_list); + list_for_each_entry(hsr_it, &hsr_list, hsr_list) + if (hsr_it == hsr) { + list_del_rcu(&hsr_it->hsr_list); return; } } bool is_hsr_slave(struct net_device *dev) { - struct hsr_priv *hsr_priv_it; + struct hsr_priv *hsr_it; - list_for_each_entry_rcu(hsr_priv_it, &hsr_list, hsr_list) { - if (dev == hsr_priv_it->slave[0]) + list_for_each_entry_rcu(hsr_it, &hsr_list, hsr_list) { + if (dev == hsr_it->slave[0]) return true; - if (dev == hsr_priv_it->slave[1]) + if (dev == hsr_it->slave[1]) return true; } @@ -62,14 +62,14 @@ bool is_hsr_slave(struct net_device *dev) */ static struct hsr_priv *get_hsr_master(struct net_device *dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; rcu_read_lock(); - list_for_each_entry_rcu(hsr_priv, &hsr_list, hsr_list) - if ((dev == hsr_priv->slave[0]) || - (dev == hsr_priv->slave[1])) { + list_for_each_entry_rcu(hsr, &hsr_list, hsr_list) + if ((dev == hsr->slave[0]) || + (dev == hsr->slave[1])) { rcu_read_unlock(); - return hsr_priv; + return hsr; } rcu_read_unlock(); @@ -80,13 +80,13 @@ static struct hsr_priv *get_hsr_master(struct net_device *dev) /* If dev is a HSR slave device, return the other slave device. Return NULL * otherwise. */ -static struct net_device *get_other_slave(struct hsr_priv *hsr_priv, +static struct net_device *get_other_slave(struct hsr_priv *hsr, struct net_device *dev) { - if (dev == hsr_priv->slave[0]) - return hsr_priv->slave[1]; - if (dev == hsr_priv->slave[1]) - return hsr_priv->slave[0]; + if (dev == hsr->slave[0]) + return hsr->slave[1]; + if (dev == hsr->slave[1]) + return hsr->slave[0]; return NULL; } @@ -96,7 +96,7 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event, void *ptr) { struct net_device *slave, *other_slave; - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; int old_operstate; int mtu_max; int res; @@ -104,68 +104,68 @@ static int hsr_netdev_notify(struct notifier_block *nb, unsigned long event, dev = netdev_notifier_info_to_dev(ptr); - hsr_priv = get_hsr_master(dev); - if (hsr_priv) { + hsr = get_hsr_master(dev); + if (hsr) { /* dev is a slave device */ slave = dev; - other_slave = get_other_slave(hsr_priv, slave); + other_slave = get_other_slave(hsr, slave); } else { if (!is_hsr_master(dev)) return NOTIFY_DONE; - hsr_priv = netdev_priv(dev); - slave = hsr_priv->slave[0]; - other_slave = hsr_priv->slave[1]; + hsr = netdev_priv(dev); + slave = hsr->slave[0]; + other_slave = hsr->slave[1]; } switch (event) { case NETDEV_UP: /* Administrative state DOWN */ case NETDEV_DOWN: /* Administrative state UP */ case NETDEV_CHANGE: /* Link (carrier) state changes */ - old_operstate = hsr_priv->dev->operstate; - hsr_set_carrier(hsr_priv->dev, slave, other_slave); + old_operstate = hsr->dev->operstate; + hsr_set_carrier(hsr->dev, slave, other_slave); /* netif_stacked_transfer_operstate() cannot be used here since * it doesn't set IF_OPER_LOWERLAYERDOWN (?) */ - hsr_set_operstate(hsr_priv->dev, slave, other_slave); - hsr_check_announce(hsr_priv->dev, old_operstate); + hsr_set_operstate(hsr->dev, slave, other_slave); + hsr_check_announce(hsr->dev, old_operstate); break; case NETDEV_CHANGEADDR: /* This should not happen since there's no ndo_set_mac_address() * for HSR devices - i.e. not supported. */ - if (dev == hsr_priv->dev) + if (dev == hsr->dev) break; - if (dev == hsr_priv->slave[0]) - ether_addr_copy(hsr_priv->dev->dev_addr, - hsr_priv->slave[0]->dev_addr); + if (dev == hsr->slave[0]) + ether_addr_copy(hsr->dev->dev_addr, + hsr->slave[0]->dev_addr); /* Make sure we recognize frames from ourselves in hsr_rcv() */ - res = hsr_create_self_node(&hsr_priv->self_node_db, - hsr_priv->dev->dev_addr, - hsr_priv->slave[1] ? - hsr_priv->slave[1]->dev_addr : - hsr_priv->dev->dev_addr); + res = hsr_create_self_node(&hsr->self_node_db, + hsr->dev->dev_addr, + hsr->slave[1] ? + hsr->slave[1]->dev_addr : + hsr->dev->dev_addr); if (res) - netdev_warn(hsr_priv->dev, + netdev_warn(hsr->dev, "Could not update HSR node address.\n"); - if (dev == hsr_priv->slave[0]) - call_netdevice_notifiers(NETDEV_CHANGEADDR, hsr_priv->dev); + if (dev == hsr->slave[0]) + call_netdevice_notifiers(NETDEV_CHANGEADDR, hsr->dev); break; case NETDEV_CHANGEMTU: - if (dev == hsr_priv->dev) + if (dev == hsr->dev) break; /* Handled in ndo_change_mtu() */ - mtu_max = hsr_get_max_mtu(hsr_priv); - if (hsr_priv->dev->mtu > mtu_max) - dev_set_mtu(hsr_priv->dev, mtu_max); + mtu_max = hsr_get_max_mtu(hsr); + if (hsr->dev->mtu > mtu_max) + dev_set_mtu(hsr->dev, mtu_max); break; case NETDEV_UNREGISTER: - if (dev == hsr_priv->slave[0]) - hsr_priv->slave[0] = NULL; - if (dev == hsr_priv->slave[1]) - hsr_priv->slave[1] = NULL; + if (dev == hsr->slave[0]) + hsr->slave[0] = NULL; + if (dev == hsr->slave[1]) + hsr->slave[1] = NULL; /* There should really be a way to set a new slave device... */ @@ -185,11 +185,11 @@ static struct timer_list prune_timer; static void prune_nodes_all(unsigned long data) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; rcu_read_lock(); - list_for_each_entry_rcu(hsr_priv, &hsr_list, hsr_list) - hsr_prune_nodes(hsr_priv); + list_for_each_entry_rcu(hsr, &hsr_list, hsr_list) + hsr_prune_nodes(hsr); rcu_read_unlock(); prune_timer.expires = jiffies + msecs_to_jiffies(PRUNE_PERIOD); @@ -207,12 +207,12 @@ static struct sk_buff *hsr_pull_tag(struct sk_buff *skb) goto err_free; skb = skb2; - if (unlikely(!pskb_may_pull(skb, HSR_TAGLEN))) + if (unlikely(!pskb_may_pull(skb, HSR_HLEN))) goto err_free; hsr_tag = (struct hsr_tag *) skb->data; skb->protocol = hsr_tag->encap_proto; - skb_pull(skb, HSR_TAGLEN); + skb_pull(skb, HSR_HLEN); return skb; @@ -237,12 +237,12 @@ err_free: * 3) Allow different MAC addresses for the two slave interfaces, using the * MacAddressA field. */ -static bool is_supervision_frame(struct hsr_priv *hsr_priv, struct sk_buff *skb) +static bool is_supervision_frame(struct hsr_priv *hsr, struct sk_buff *skb) { struct hsr_sup_tag *hsr_stag; if (!ether_addr_equal(eth_hdr(skb)->h_dest, - hsr_priv->sup_multicast_addr)) + hsr->sup_multicast_addr)) return false; hsr_stag = (struct hsr_sup_tag *) skb->data; @@ -263,25 +263,25 @@ static bool is_supervision_frame(struct hsr_priv *hsr_priv, struct sk_buff *skb) static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, struct packet_type *pt, struct net_device *orig_dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; struct net_device *other_slave; - struct node_entry *node; + struct hsr_node *node; bool deliver_to_self; struct sk_buff *skb_deliver; enum hsr_dev_idx dev_in_idx, dev_other_idx; bool dup_out; int ret; - hsr_priv = get_hsr_master(dev); + hsr = get_hsr_master(dev); - if (!hsr_priv) { + if (!hsr) { /* Non-HSR-slave device 'dev' is connected to a HSR network */ kfree_skb(skb); dev->stats.rx_errors++; return NET_RX_SUCCESS; } - if (dev == hsr_priv->slave[0]) { + if (dev == hsr->slave[0]) { dev_in_idx = HSR_DEV_SLAVE_A; dev_other_idx = HSR_DEV_SLAVE_B; } else { @@ -289,7 +289,7 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, dev_other_idx = HSR_DEV_SLAVE_A; } - node = hsr_find_node(&hsr_priv->self_node_db, skb); + node = hsr_find_node(&hsr->self_node_db, skb); if (node) { /* Always kill frames sent by ourselves */ kfree_skb(skb); @@ -303,22 +303,22 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, (skb->pkt_type == PACKET_BROADCAST)) deliver_to_self = true; else if (ether_addr_equal(eth_hdr(skb)->h_dest, - hsr_priv->dev->dev_addr)) { + hsr->dev->dev_addr)) { skb->pkt_type = PACKET_HOST; deliver_to_self = true; } rcu_read_lock(); /* node_db */ - node = hsr_find_node(&hsr_priv->node_db, skb); + node = hsr_find_node(&hsr->node_db, skb); - if (is_supervision_frame(hsr_priv, skb)) { + if (is_supervision_frame(hsr, skb)) { skb_pull(skb, sizeof(struct hsr_sup_tag)); - node = hsr_merge_node(hsr_priv, node, skb, dev_in_idx); + node = hsr_merge_node(hsr, node, skb, dev_in_idx); if (!node) { rcu_read_unlock(); /* node_db */ kfree_skb(skb); - hsr_priv->dev->stats.rx_dropped++; + hsr->dev->stats.rx_dropped++; return NET_RX_DROP; } skb_push(skb, sizeof(struct hsr_sup_tag)); @@ -345,7 +345,7 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, /* Forward this frame? */ if (!dup_out && (skb->pkt_type != PACKET_HOST)) - other_slave = get_other_slave(hsr_priv, dev); + other_slave = get_other_slave(hsr, dev); else other_slave = NULL; @@ -368,7 +368,7 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, skb_deliver = pskb_copy(skb, GFP_ATOMIC); if (!skb_deliver) { deliver_to_self = false; - hsr_priv->dev->stats.rx_dropped++; + hsr->dev->stats.rx_dropped++; } } @@ -377,7 +377,7 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, skb_deliver = hsr_pull_tag(skb_deliver); if (!skb_deliver) { - hsr_priv->dev->stats.rx_dropped++; + hsr->dev->stats.rx_dropped++; goto forward; } #if !defined(CONFIG_HAVE_EFFICIENT_UNALIGNED_ACCESS) @@ -386,7 +386,7 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, * tag. In practice, this removes/overwrites the HSR tag in * the header and restores a "standard" packet. */ - memmove(skb_deliver->data - HSR_TAGLEN, skb_deliver->data, + memmove(skb_deliver->data - HSR_HLEN, skb_deliver->data, skb_headlen(skb_deliver)); /* Adjust skb members so they correspond with the move above. @@ -397,20 +397,20 @@ static int hsr_rcv(struct sk_buff *skb, struct net_device *dev, * the mac header nor the head. So we only need to adjust data * and tail: */ - skb_deliver->data -= HSR_TAGLEN; - skb_deliver->tail -= HSR_TAGLEN; + skb_deliver->data -= HSR_HLEN; + skb_deliver->tail -= HSR_HLEN; #endif - skb_deliver->dev = hsr_priv->dev; - hsr_addr_subst_source(hsr_priv, skb_deliver); + skb_deliver->dev = hsr->dev; + hsr_addr_subst_source(hsr, skb_deliver); multicast_frame = (skb_deliver->pkt_type == PACKET_MULTICAST); ret = netif_rx(skb_deliver); if (ret == NET_RX_DROP) { - hsr_priv->dev->stats.rx_dropped++; + hsr->dev->stats.rx_dropped++; } else { - hsr_priv->dev->stats.rx_packets++; - hsr_priv->dev->stats.rx_bytes += skb->len; + hsr->dev->stats.rx_packets++; + hsr->dev->stats.rx_bytes += skb->len; if (multicast_frame) - hsr_priv->dev->stats.multicast++; + hsr->dev->stats.multicast++; } } @@ -439,7 +439,7 @@ static int __init hsr_init(void) { int res; - BUILD_BUG_ON(sizeof(struct hsr_tag) != HSR_TAGLEN); + BUILD_BUG_ON(sizeof(struct hsr_tag) != HSR_HLEN); dev_add_pack(&hsr_pt); diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h index 56fe060..360a49a 100644 --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,11 +6,11 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se */ -#ifndef _HSR_PRIVATE_H -#define _HSR_PRIVATE_H +#ifndef __HSR_PRIVATE_H +#define __HSR_PRIVATE_H #include <linux/netdevice.h> #include <linux/list.h> @@ -46,16 +46,16 @@ * path, LSDU_size, sequence Nr }. But we let eth_header() create { h_dest, * h_source, h_proto = 0x88FB }, and add { path, LSDU_size, sequence Nr, * encapsulated protocol } instead. + * + * Field names as defined in the IEC:2010 standard for HSR. */ -#define HSR_TAGLEN 6 - -/* Field names below as defined in the IEC:2010 standard for HSR. */ struct hsr_tag { __be16 path_and_LSDU_size; __be16 sequence_nr; __be16 encap_proto; } __packed; +#define HSR_HLEN 6 /* The helper functions below assumes that 'path' occupies the 4 most * significant bits of the 16-bit field shared by 'path' and 'LSDU_size' (or @@ -159,8 +159,8 @@ struct hsr_priv { unsigned char sup_multicast_addr[ETH_ALEN]; }; -void register_hsr_master(struct hsr_priv *hsr_priv); -void unregister_hsr_master(struct hsr_priv *hsr_priv); +void register_hsr_master(struct hsr_priv *hsr); +void unregister_hsr_master(struct hsr_priv *hsr); bool is_hsr_slave(struct net_device *dev); -#endif /* _HSR_PRIVATE_H */ +#endif /* __HSR_PRIVATE_H */ diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c index 01a5261..bea250e 100644 --- a/net/hsr/hsr_netlink.c +++ b/net/hsr/hsr_netlink.c @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se * * Routines for handling Netlink messages for HSR. */ @@ -63,21 +63,21 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev, static int hsr_fill_info(struct sk_buff *skb, const struct net_device *dev) { - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; - hsr_priv = netdev_priv(dev); + hsr = netdev_priv(dev); - if (hsr_priv->slave[0]) - if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr_priv->slave[0]->ifindex)) + if (hsr->slave[0]) + if (nla_put_u32(skb, IFLA_HSR_SLAVE1, hsr->slave[0]->ifindex)) goto nla_put_failure; - if (hsr_priv->slave[1]) - if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr_priv->slave[1]->ifindex)) + if (hsr->slave[1]) + if (nla_put_u32(skb, IFLA_HSR_SLAVE2, hsr->slave[1]->ifindex)) goto nla_put_failure; if (nla_put(skb, IFLA_HSR_SUPERVISION_ADDR, ETH_ALEN, - hsr_priv->sup_multicast_addr) || - nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr_priv->sequence_nr)) + hsr->sup_multicast_addr) || + nla_put_u16(skb, IFLA_HSR_SEQ_NR, hsr->sequence_nr)) goto nla_put_failure; return 0; @@ -128,7 +128,7 @@ static const struct genl_multicast_group hsr_mcgrps[] = { * over one of the slave interfaces. This would indicate an open network ring * (i.e. a link has failed somewhere). */ -void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN], +void hsr_nl_ringerror(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN], enum hsr_dev_idx dev_idx) { struct sk_buff *skb; @@ -148,8 +148,8 @@ void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN], if (res < 0) goto nla_put_failure; - if (hsr_priv->slave[dev_idx]) - ifindex = hsr_priv->slave[dev_idx]->ifindex; + if (hsr->slave[dev_idx]) + ifindex = hsr->slave[dev_idx]->ifindex; else ifindex = -1; res = nla_put_u32(skb, HSR_A_IFINDEX, ifindex); @@ -165,13 +165,13 @@ nla_put_failure: kfree_skb(skb); fail: - netdev_warn(hsr_priv->dev, "Could not send HSR ring error message\n"); + netdev_warn(hsr->dev, "Could not send HSR ring error message\n"); } /* This is called when we haven't heard from the node with MAC address addr for * some time (just before the node is removed from the node table/list). */ -void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN]) +void hsr_nl_nodedown(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN]) { struct sk_buff *skb; void *msg_head; @@ -199,7 +199,7 @@ nla_put_failure: kfree_skb(skb); fail: - netdev_warn(hsr_priv->dev, "Could not send HSR node down\n"); + netdev_warn(hsr->dev, "Could not send HSR node down\n"); } @@ -220,7 +220,7 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info) /* For sending */ struct sk_buff *skb_out; void *msg_head; - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; unsigned char hsr_node_addr_b[ETH_ALEN]; int hsr_node_if1_age; u16 hsr_node_if1_seq; @@ -267,8 +267,8 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info) if (res < 0) goto nla_put_failure; - hsr_priv = netdev_priv(hsr_dev); - res = hsr_get_node_data(hsr_priv, + hsr = netdev_priv(hsr_dev); + res = hsr_get_node_data(hsr, (unsigned char *) nla_data(info->attrs[HSR_A_NODE_ADDR]), hsr_node_addr_b, &addr_b_ifindex, @@ -301,9 +301,9 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info) res = nla_put_u16(skb_out, HSR_A_IF1_SEQ, hsr_node_if1_seq); if (res < 0) goto nla_put_failure; - if (hsr_priv->slave[0]) + if (hsr->slave[0]) res = nla_put_u32(skb_out, HSR_A_IF1_IFINDEX, - hsr_priv->slave[0]->ifindex); + hsr->slave[0]->ifindex); if (res < 0) goto nla_put_failure; @@ -313,9 +313,9 @@ static int hsr_get_node_status(struct sk_buff *skb_in, struct genl_info *info) res = nla_put_u16(skb_out, HSR_A_IF2_SEQ, hsr_node_if2_seq); if (res < 0) goto nla_put_failure; - if (hsr_priv->slave[1]) + if (hsr->slave[1]) res = nla_put_u32(skb_out, HSR_A_IF2_IFINDEX, - hsr_priv->slave[1]->ifindex); + hsr->slave[1]->ifindex); genlmsg_end(skb_out, msg_head); genlmsg_unicast(genl_info_net(info), skb_out, info->snd_portid); @@ -345,7 +345,7 @@ static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info) /* For sending */ struct sk_buff *skb_out; void *msg_head; - struct hsr_priv *hsr_priv; + struct hsr_priv *hsr; void *pos; unsigned char addr[ETH_ALEN]; int res; @@ -385,17 +385,17 @@ static int hsr_get_node_list(struct sk_buff *skb_in, struct genl_info *info) if (res < 0) goto nla_put_failure; - hsr_priv = netdev_priv(hsr_dev); + hsr = netdev_priv(hsr_dev); rcu_read_lock(); - pos = hsr_get_next_node(hsr_priv, NULL, addr); + pos = hsr_get_next_node(hsr, NULL, addr); while (pos) { res = nla_put(skb_out, HSR_A_NODE_ADDR, ETH_ALEN, addr); if (res < 0) { rcu_read_unlock(); goto nla_put_failure; } - pos = hsr_get_next_node(hsr_priv, pos, addr); + pos = hsr_get_next_node(hsr, pos, addr); } rcu_read_unlock(); diff --git a/net/hsr/hsr_netlink.h b/net/hsr/hsr_netlink.h index d4579dc..3047f9c 100644 --- a/net/hsr/hsr_netlink.h +++ b/net/hsr/hsr_netlink.h @@ -1,4 +1,4 @@ -/* Copyright 2011-2013 Autronica Fire and Security AS +/* Copyright 2011-2014 Autronica Fire and Security AS * * This program is free software; you can redistribute it and/or modify it * under the terms of the GNU General Public License as published by the Free @@ -6,7 +6,7 @@ * any later version. * * Author(s): - * 2011-2013 Arvid Brodin, arvid.brodin@xdin.com + * 2011-2014 Arvid Brodin, arvid.brodin@alten.se */ #ifndef __HSR_NETLINK_H @@ -21,9 +21,9 @@ struct hsr_priv; int __init hsr_netlink_init(void); void __exit hsr_netlink_exit(void); -void hsr_nl_ringerror(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN], +void hsr_nl_ringerror(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN], int dev_idx); -void hsr_nl_nodedown(struct hsr_priv *hsr_priv, unsigned char addr[ETH_ALEN]); +void hsr_nl_nodedown(struct hsr_priv *hsr, unsigned char addr[ETH_ALEN]); void hsr_nl_framedrop(int dropcount, int dev_idx); void hsr_nl_linkdown(int dev_idx); |