From patchwork Tue Jun 4 08:43:48 2024 Content-Type: text/plain; charset="utf-8" MIME-Version: 1.0 Content-Transfer-Encoding: 7bit X-Patchwork-Submitter: Lukasz Majewski X-Patchwork-Id: 13684888 X-Patchwork-Delegate: kuba@kernel.org Received: from phobos.denx.de (phobos.denx.de [85.214.62.61]) (using TLSv1.2 with cipher ECDHE-RSA-AES128-GCM-SHA256 (128/128 bits)) (No client certificate requested) by smtp.subspace.kernel.org (Postfix) with ESMTPS id 9B35A5B683; Tue, 4 Jun 2024 08:44:25 +0000 (UTC) Authentication-Results: smtp.subspace.kernel.org; arc=none smtp.client-ip=85.214.62.61 ARC-Seal: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717490667; cv=none; b=JCQFxDa6W1uY9oJ47J4lKfjJohrK8z6dJ6ZzKGetAy7SuonCX3uJtPwK+yWrEVD47Oh7Jwh9oHzaoE9/9gL3L8LGjC8WFImOIoiTtG4h2e56/XTeoR48cCYOFX4ynrCIy7iNFQTeEgA5fNM3gjAYXlJuJy6YajdAgm0tfrY6LRY= ARC-Message-Signature: i=1; a=rsa-sha256; d=subspace.kernel.org; s=arc-20240116; t=1717490667; c=relaxed/simple; bh=zMO0jpRfEs3lvDHdEO5f2wIPOVkiJcvFlFr9vHuHc0o=; h=From:To:Cc:Subject:Date:Message-Id:MIME-Version; b=NZmaQnhcIyxvuPd+CzpYDPREpbz1BvNso5a86PrCM4bLXxgRJjgo9QSVNvloOiFOYesDKIfdSOf5ZRX9gRXCkgrDltFb+IYTBtC4Z226mi55ABFx/fn1SR7rOzCVolB+fv/bDFb8cSns5dr8m0TgconTbEhzIZ1i3THSbf57BvM= ARC-Authentication-Results: i=1; smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de; spf=pass smtp.mailfrom=denx.de; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b=ErAqfMAM; arc=none smtp.client-ip=85.214.62.61 Authentication-Results: smtp.subspace.kernel.org; dmarc=pass (p=none dis=none) header.from=denx.de Authentication-Results: smtp.subspace.kernel.org; spf=pass smtp.mailfrom=denx.de Authentication-Results: smtp.subspace.kernel.org; dkim=pass (2048-bit key) header.d=denx.de header.i=@denx.de header.b="ErAqfMAM" Received: from localhost.localdomain (85-222-111-42.dynamic.chello.pl [85.222.111.42]) (using TLSv1.3 with cipher TLS_AES_256_GCM_SHA384 (256/256 bits)) (No client certificate requested) (Authenticated sender: lukma@denx.de) by phobos.denx.de (Postfix) with ESMTPSA id 5C186883DB; Tue, 4 Jun 2024 10:44:16 +0200 (CEST) DKIM-Signature: v=1; a=rsa-sha256; c=relaxed/relaxed; d=denx.de; s=phobos-20191101; t=1717490658; bh=e7E6p2V7kJv/2+UZyDltfweqPcMgpn10OcqNN9LoOts=; h=From:To:Cc:Subject:Date:From; b=ErAqfMAM5ff+ubuIp0xNoB/p4Ba9MNtloJusOoUgyhsX+L3XxM2LWNQq58ivF18V5 ZIqXQo9Xdea0wATjIT+waHB2rgqy3vw1OH4/iGPeYpTjJ7grGWz7Z3gAPIIxi1H61+ pjygFUiJuKrxaKpGFL7nBIaNrT9RMFgPsRqJALkt6MwLZ3asHS9/l5+XkBqgbyvvgL 60kRwrYkKKDyTvcPsb0bKlhFJNsO9xOR0C4ob8dUM3RBLC4oDIobqX//wOQThLKVz9 rB5uL81OF1J1Np5/KazIy+H1vWLtcjz68O0IVMTb3yOmYynsJ7LzURxHfCGQbVCjYN QxmPzmgS+JZ/A== From: Lukasz Majewski To: Jakub Kicinski , netdev@vger.kernel.org, Paolo Abeni , Wojciech Drewek Cc: Eric Dumazet , Vladimir Oltean , "David S. Miller" , Oleksij Rempel , Tristram.Ha@microchip.com, Sebastian Andrzej Siewior , Ravi Gunasekaran , Simon Horman , Nikita Zhandarovich , Murali Karicheri , Arvid Brodin , Dan Carpenter , "Ricardo B. Marliere" , Casper Andersson , linux-kernel@vger.kernel.org, Hangbin Liu , Geliang Tang , Shuah Khan , Shigeru Yoshida , Lukasz Majewski Subject: [PATCH v2 net-next] net: hsr: Send supervisory frames to HSR network with ProxyNodeTable data Date: Tue, 4 Jun 2024 10:43:48 +0200 Message-Id: <20240604084348.3259917-1-lukma@denx.de> X-Mailer: git-send-email 2.39.2 Precedence: bulk X-Mailing-List: netdev@vger.kernel.org List-Id: List-Subscribe: List-Unsubscribe: MIME-Version: 1.0 X-Virus-Scanned: clamav-milter 0.103.8 at phobos.denx.de X-Virus-Status: Clean X-Patchwork-Delegate: kuba@kernel.org This patch provides support for sending supervision HSR frames with MAC addresses stored in ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled. Supervision frames with RedBox MAC address (appended as second TLV) are only send for ProxyNodeTable nodes. This patch series shall be tested with hsr_redbox.sh script. Signed-off-by: Lukasz Majewski Reviewed-by: Wojciech Drewek --- Changes for v2: - Fix the Reverse Christmas Tree formatting - Return directly values from hsr_is_node_in_db() and ether_addr_equal() - Change the internal variable check --- net/hsr/hsr_device.c | 63 ++++++++++++++++++++++++++++++++++-------- net/hsr/hsr_forward.c | 37 +++++++++++++++++++++++-- net/hsr/hsr_framereg.c | 12 ++++++++ net/hsr/hsr_framereg.h | 2 ++ net/hsr/hsr_main.h | 4 ++- net/hsr/hsr_netlink.c | 1 + 6 files changed, 105 insertions(+), 14 deletions(-) diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c index e6904288d40d..ad7cb9b29273 100644 --- a/net/hsr/hsr_device.c +++ b/net/hsr/hsr_device.c @@ -73,9 +73,15 @@ static void hsr_check_announce(struct net_device *hsr_dev) mod_timer(&hsr->announce_timer, jiffies + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL)); } + + if (hsr->redbox && !timer_pending(&hsr->announce_proxy_timer)) + mod_timer(&hsr->announce_proxy_timer, jiffies + + msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL) / 2); } else { /* Deactivate the announce timer */ timer_delete(&hsr->announce_timer); + if (hsr->redbox) + timer_delete(&hsr->announce_proxy_timer); } } @@ -279,10 +285,11 @@ static struct sk_buff *hsr_init_skb(struct hsr_port *master) return NULL; } -static void send_hsr_supervision_frame(struct hsr_port *master, - unsigned long *interval) +static void send_hsr_supervision_frame(struct hsr_port *port, + unsigned long *interval, + const unsigned char addr[ETH_ALEN]) { - struct hsr_priv *hsr = master->hsr; + struct hsr_priv *hsr = port->hsr; __u8 type = HSR_TLV_LIFE_CHECK; struct hsr_sup_payload *hsr_sp; struct hsr_sup_tlv *hsr_stlv; @@ -296,9 +303,9 @@ static void send_hsr_supervision_frame(struct hsr_port *master, hsr->announce_count++; } - skb = hsr_init_skb(master); + skb = hsr_init_skb(port); if (!skb) { - netdev_warn_once(master->dev, "HSR: Could not send supervision frame\n"); + netdev_warn_once(port->dev, "HSR: Could not send supervision frame\n"); return; } @@ -321,11 +328,12 @@ static void send_hsr_supervision_frame(struct hsr_port *master, hsr_stag->tlv.HSR_TLV_length = hsr->prot_version ? sizeof(struct hsr_sup_payload) : 12; - /* Payload: MacAddressA */ + /* Payload: MacAddressA / SAN MAC from ProxyNodeTable */ hsr_sp = skb_put(skb, sizeof(struct hsr_sup_payload)); - ether_addr_copy(hsr_sp->macaddress_A, master->dev->dev_addr); + ether_addr_copy(hsr_sp->macaddress_A, addr); - if (hsr->redbox) { + if (hsr->redbox && + hsr_is_node_in_db(&hsr->proxy_node_db, addr)) { hsr_stlv = skb_put(skb, sizeof(struct hsr_sup_tlv)); hsr_stlv->HSR_TLV_type = PRP_TLV_REDBOX_MAC; hsr_stlv->HSR_TLV_length = sizeof(struct hsr_sup_payload); @@ -340,13 +348,14 @@ static void send_hsr_supervision_frame(struct hsr_port *master, return; } - hsr_forward_skb(skb, master); + hsr_forward_skb(skb, port); spin_unlock_bh(&hsr->seqnr_lock); return; } static void send_prp_supervision_frame(struct hsr_port *master, - unsigned long *interval) + unsigned long *interval, + const unsigned char addr[ETH_ALEN]) { struct hsr_priv *hsr = master->hsr; struct hsr_sup_payload *hsr_sp; @@ -396,7 +405,7 @@ static void hsr_announce(struct timer_list *t) rcu_read_lock(); master = hsr_port_get_hsr(hsr, HSR_PT_MASTER); - hsr->proto_ops->send_sv_frame(master, &interval); + hsr->proto_ops->send_sv_frame(master, &interval, master->dev->dev_addr); if (is_admin_up(master->dev)) mod_timer(&hsr->announce_timer, jiffies + interval); @@ -404,6 +413,37 @@ static void hsr_announce(struct timer_list *t) rcu_read_unlock(); } +/* Announce (supervision frame) timer function for RedBox + */ +static void hsr_proxy_announce(struct timer_list *t) +{ + struct hsr_priv *hsr = from_timer(hsr, t, announce_proxy_timer); + struct hsr_port *interlink; + unsigned long interval = 0; + struct hsr_node *node; + + rcu_read_lock(); + /* RedBOX sends supervisory frames to HSR network with MAC addresses + * of SAN nodes stored in ProxyNodeTable. + */ + interlink = hsr_port_get_hsr(hsr, HSR_PT_INTERLINK); + list_for_each_entry_rcu(node, &hsr->proxy_node_db, mac_list) { + if (hsr_addr_is_redbox(hsr, node->macaddress_A)) + continue; + hsr->proto_ops->send_sv_frame(interlink, &interval, + node->macaddress_A); + } + + if (is_admin_up(interlink->dev)) { + if (!interval) + interval = msecs_to_jiffies(HSR_ANNOUNCE_INTERVAL); + + mod_timer(&hsr->announce_proxy_timer, jiffies + interval); + } + + rcu_read_unlock(); +} + void hsr_del_ports(struct hsr_priv *hsr) { struct hsr_port *port; @@ -590,6 +630,7 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2], timer_setup(&hsr->announce_timer, hsr_announce, 0); timer_setup(&hsr->prune_timer, hsr_prune_nodes, 0); timer_setup(&hsr->prune_proxy_timer, hsr_prune_proxy_nodes, 0); + timer_setup(&hsr->announce_proxy_timer, hsr_proxy_announce, 0); ether_addr_copy(hsr->sup_multicast_addr, def_multicast_addr); hsr->sup_multicast_addr[ETH_ALEN - 1] = multicast_spec; diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c index 05a61b8286ec..003070dbfcb4 100644 --- a/net/hsr/hsr_forward.c +++ b/net/hsr/hsr_forward.c @@ -117,6 +117,35 @@ static bool is_supervision_frame(struct hsr_priv *hsr, struct sk_buff *skb) return true; } +static bool is_proxy_supervision_frame(struct hsr_priv *hsr, + struct sk_buff *skb) +{ + struct hsr_sup_payload *payload; + struct ethhdr *eth_hdr; + u16 total_length = 0; + + eth_hdr = (struct ethhdr *)skb_mac_header(skb); + + /* Get the HSR protocol revision. */ + if (eth_hdr->h_proto == htons(ETH_P_HSR)) + total_length = sizeof(struct hsrv1_ethhdr_sp); + else + total_length = sizeof(struct hsrv0_ethhdr_sp); + + if (!pskb_may_pull(skb, total_length)) + return false; + + skb_pull(skb, total_length); + payload = (struct hsr_sup_payload *)skb->data; + skb_push(skb, total_length); + + /* For RedBox (HSR-SAN) check if we have received the supervision + * frame with MAC addresses from own ProxyNodeTable. + */ + return hsr_is_node_in_db(&hsr->proxy_node_db, + payload->macaddress_A); +} + static struct sk_buff *create_stripped_skb_hsr(struct sk_buff *skb_in, struct hsr_frame_info *frame) { @@ -499,7 +528,8 @@ static void hsr_forward_do(struct hsr_frame_info *frame) frame->sequence_nr)) continue; - if (frame->is_supervision && port->type == HSR_PT_MASTER) { + if (frame->is_supervision && port->type == HSR_PT_MASTER && + !frame->is_proxy_supervision) { hsr_handle_sup_frame(frame); continue; } @@ -637,6 +667,9 @@ static int fill_frame_info(struct hsr_frame_info *frame, memset(frame, 0, sizeof(*frame)); frame->is_supervision = is_supervision_frame(port->hsr, skb); + if (frame->is_supervision && hsr->redbox) + frame->is_proxy_supervision = + is_proxy_supervision_frame(port->hsr, skb); n_db = &hsr->node_db; if (port->type == HSR_PT_INTERLINK) @@ -688,7 +721,7 @@ void hsr_forward_skb(struct sk_buff *skb, struct hsr_port *port) /* Gets called for ingress frames as well as egress from master port. * So check and increment stats for master port only here. */ - if (port->type == HSR_PT_MASTER) { + if (port->type == HSR_PT_MASTER || port->type == HSR_PT_INTERLINK) { port->dev->stats.tx_packets++; port->dev->stats.tx_bytes += skb->len; } diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c index 614df9649794..73bc6f659812 100644 --- a/net/hsr/hsr_framereg.c +++ b/net/hsr/hsr_framereg.c @@ -36,6 +36,14 @@ static bool seq_nr_after(u16 a, u16 b) #define seq_nr_before(a, b) seq_nr_after((b), (a)) #define seq_nr_before_or_eq(a, b) (!seq_nr_after((a), (b))) +bool hsr_addr_is_redbox(struct hsr_priv *hsr, unsigned char *addr) +{ + if (!hsr->redbox || !is_valid_ether_addr(hsr->macaddress_redbox)) + return false; + + return ether_addr_equal(addr, hsr->macaddress_redbox); +} + bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr) { struct hsr_self_node *sn; @@ -591,6 +599,10 @@ void hsr_prune_proxy_nodes(struct timer_list *t) spin_lock_bh(&hsr->list_lock); list_for_each_entry_safe(node, tmp, &hsr->proxy_node_db, mac_list) { + /* Don't prune RedBox node. */ + if (hsr_addr_is_redbox(hsr, node->macaddress_A)) + continue; + timestamp = node->time_in[HSR_PT_INTERLINK]; /* Prune old entries */ diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h index 7619e31c1d2d..993fa950d814 100644 --- a/net/hsr/hsr_framereg.h +++ b/net/hsr/hsr_framereg.h @@ -22,6 +22,7 @@ struct hsr_frame_info { struct hsr_node *node_src; u16 sequence_nr; bool is_supervision; + bool is_proxy_supervision; bool is_vlan; bool is_local_dest; bool is_local_exclusive; @@ -35,6 +36,7 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db, enum hsr_port_type rx_port); void hsr_handle_sup_frame(struct hsr_frame_info *frame); bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr); +bool hsr_addr_is_redbox(struct hsr_priv *hsr, unsigned char *addr); void hsr_addr_subst_source(struct hsr_node *node, struct sk_buff *skb); void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb, diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h index 23850b16d1ea..ab1f8d35d9dc 100644 --- a/net/hsr/hsr_main.h +++ b/net/hsr/hsr_main.h @@ -170,7 +170,8 @@ struct hsr_node; struct hsr_proto_ops { /* format and send supervision frame */ - void (*send_sv_frame)(struct hsr_port *port, unsigned long *interval); + void (*send_sv_frame)(struct hsr_port *port, unsigned long *interval, + const unsigned char addr[ETH_ALEN]); void (*handle_san_frame)(bool san, enum hsr_port_type port, struct hsr_node *node); bool (*drop_frame)(struct hsr_frame_info *frame, struct hsr_port *port); @@ -197,6 +198,7 @@ struct hsr_priv { struct list_head proxy_node_db; /* RedBox HSR proxy nodes */ struct hsr_self_node __rcu *self_node; /* MACs of slaves */ struct timer_list announce_timer; /* Supervision frame dispatch */ + struct timer_list announce_proxy_timer; struct timer_list prune_timer; struct timer_list prune_proxy_timer; int announce_count; diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c index 898f18c6da53..f6ff0b61e08a 100644 --- a/net/hsr/hsr_netlink.c +++ b/net/hsr/hsr_netlink.c @@ -131,6 +131,7 @@ static void hsr_dellink(struct net_device *dev, struct list_head *head) del_timer_sync(&hsr->prune_timer); del_timer_sync(&hsr->prune_proxy_timer); del_timer_sync(&hsr->announce_timer); + timer_delete_sync(&hsr->announce_proxy_timer); hsr_debugfs_term(hsr); hsr_del_ports(hsr);