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Message-Id: <20220205141742.22678-1-claudiajkang@gmail.com>
Date: Sat, 5 Feb 2022 14:17:42 +0000
From: Juhee Kang <claudiajkang@...il.com>
To: davem@...emloft.net, kuba@...nel.org, netdev@...r.kernel.org
Subject: [PATCH v3 net-next] net: hsr: use hlist_head instead of list_head for mac addresses
Currently, HSR manages mac addresses of known HSR nodes by using list_head.
It takes a lot of time when there are a lot of registered nodes due to
finding specific mac address nodes by using linear search. We can be
reducing the time by using hlist. Thus, this patch moves list_head to
hlist_head for mac addresses and this allows for further improvement of
network performance.
Condition: registered 10,000 known HSR nodes
Before:
# iperf3 -c 192.168.10.1 -i 1 -t 10
Connecting to host 192.168.10.1, port 5201
[ 5] local 192.168.10.2 port 59442 connected to 192.168.10.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.49 sec 3.75 MBytes 21.1 Mbits/sec 0 158 KBytes
[ 5] 1.49-2.05 sec 1.25 MBytes 18.7 Mbits/sec 0 166 KBytes
[ 5] 2.05-3.06 sec 2.44 MBytes 20.3 Mbits/sec 56 16.9 KBytes
[ 5] 3.06-4.08 sec 1.43 MBytes 11.7 Mbits/sec 11 38.0 KBytes
[ 5] 4.08-5.00 sec 951 KBytes 8.49 Mbits/sec 0 56.3 KBytes
After:
# iperf3 -c 192.168.10.1 -i 1 -t 10
Connecting to host 192.168.10.1, port 5201
[ 5] local 192.168.10.2 port 36460 connected to 192.168.10.1 port 5201
[ ID] Interval Transfer Bitrate Retr Cwnd
[ 5] 0.00-1.00 sec 7.39 MBytes 62.0 Mbits/sec 3 130 KBytes
[ 5] 1.00-2.00 sec 5.06 MBytes 42.4 Mbits/sec 16 113 KBytes
[ 5] 2.00-3.00 sec 8.58 MBytes 72.0 Mbits/sec 42 94.3 KBytes
[ 5] 3.00-4.00 sec 7.44 MBytes 62.4 Mbits/sec 2 131 KBytes
[ 5] 4.00-5.07 sec 8.13 MBytes 63.5 Mbits/sec 38 92.9 KBytes
Signed-off-by: Juhee Kang <claudiajkang@...il.com>
---
v3:
- rebase current net-next tree
v2:
- fix rcu warning
net/hsr/hsr_debugfs.c | 39 +++++----
net/hsr/hsr_device.c | 10 ++-
net/hsr/hsr_forward.c | 7 +-
net/hsr/hsr_framereg.c | 195 ++++++++++++++++++++++++-----------------
net/hsr/hsr_framereg.h | 8 +-
net/hsr/hsr_main.h | 9 +-
net/hsr/hsr_netlink.c | 4 +-
7 files changed, 167 insertions(+), 105 deletions(-)
diff --git a/net/hsr/hsr_debugfs.c b/net/hsr/hsr_debugfs.c
index 99f3af1a9d4d..4d50e9b3055d 100644
--- a/net/hsr/hsr_debugfs.c
+++ b/net/hsr/hsr_debugfs.c
@@ -17,6 +17,7 @@
#include <linux/module.h>
#include <linux/errno.h>
#include <linux/debugfs.h>
+#include <linux/jhash.h>
#include "hsr_main.h"
#include "hsr_framereg.h"
@@ -28,6 +29,7 @@ hsr_node_table_show(struct seq_file *sfp, void *data)
{
struct hsr_priv *priv = (struct hsr_priv *)sfp->private;
struct hsr_node *node;
+ int i;
seq_printf(sfp, "Node Table entries for (%s) device\n",
(priv->prot_version == PRP_V1 ? "PRP" : "HSR"));
@@ -39,22 +41,27 @@ hsr_node_table_show(struct seq_file *sfp, void *data)
seq_puts(sfp, "DAN-H\n");
rcu_read_lock();
- list_for_each_entry_rcu(node, &priv->node_db, mac_list) {
- /* skip self node */
- if (hsr_addr_is_self(priv, node->macaddress_A))
- continue;
- seq_printf(sfp, "%pM ", &node->macaddress_A[0]);
- seq_printf(sfp, "%pM ", &node->macaddress_B[0]);
- seq_printf(sfp, "%10lx, ", node->time_in[HSR_PT_SLAVE_A]);
- seq_printf(sfp, "%10lx, ", node->time_in[HSR_PT_SLAVE_B]);
- seq_printf(sfp, "%14x, ", node->addr_B_port);
-
- if (priv->prot_version == PRP_V1)
- seq_printf(sfp, "%5x, %5x, %5x\n",
- node->san_a, node->san_b,
- (node->san_a == 0 && node->san_b == 0));
- else
- seq_printf(sfp, "%5x\n", 1);
+
+ for (i = 0 ; i < priv->hash_buckets; i++) {
+ hlist_for_each_entry_rcu(node, &priv->node_db[i], mac_list) {
+ /* skip self node */
+ if (hsr_addr_is_self(priv, node->macaddress_A))
+ continue;
+ seq_printf(sfp, "%pM ", &node->macaddress_A[0]);
+ seq_printf(sfp, "%pM ", &node->macaddress_B[0]);
+ seq_printf(sfp, "%10lx, ",
+ node->time_in[HSR_PT_SLAVE_A]);
+ seq_printf(sfp, "%10lx, ",
+ node->time_in[HSR_PT_SLAVE_B]);
+ seq_printf(sfp, "%14x, ", node->addr_B_port);
+
+ if (priv->prot_version == PRP_V1)
+ seq_printf(sfp, "%5x, %5x, %5x\n",
+ node->san_a, node->san_b,
+ (node->san_a == 0 && node->san_b == 0));
+ else
+ seq_printf(sfp, "%5x\n", 1);
+ }
}
rcu_read_unlock();
return 0;
diff --git a/net/hsr/hsr_device.c b/net/hsr/hsr_device.c
index e57fdad9ef94..7f250216433d 100644
--- a/net/hsr/hsr_device.c
+++ b/net/hsr/hsr_device.c
@@ -485,12 +485,16 @@ int hsr_dev_finalize(struct net_device *hsr_dev, struct net_device *slave[2],
{
bool unregister = false;
struct hsr_priv *hsr;
- int res;
+ int res, i;
hsr = netdev_priv(hsr_dev);
INIT_LIST_HEAD(&hsr->ports);
- INIT_LIST_HEAD(&hsr->node_db);
- INIT_LIST_HEAD(&hsr->self_node_db);
+ INIT_HLIST_HEAD(&hsr->self_node_db);
+ hsr->hash_buckets = HSR_HSIZE;
+ get_random_bytes(&hsr->hash_seed, sizeof(hsr->hash_seed));
+ for (i = 0; i < hsr->hash_buckets; i++)
+ INIT_HLIST_HEAD(&hsr->node_db[i]);
+
spin_lock_init(&hsr->list_lock);
eth_hw_addr_set(hsr_dev, slave[0]->dev_addr);
diff --git a/net/hsr/hsr_forward.c b/net/hsr/hsr_forward.c
index e59cbb4f0cd1..5bf357734b11 100644
--- a/net/hsr/hsr_forward.c
+++ b/net/hsr/hsr_forward.c
@@ -570,20 +570,23 @@ static int fill_frame_info(struct hsr_frame_info *frame,
struct ethhdr *ethhdr;
__be16 proto;
int ret;
+ u32 hash;
/* Check if skb contains ethhdr */
if (skb->mac_len < sizeof(struct ethhdr))
return -EINVAL;
memset(frame, 0, sizeof(*frame));
+
+ ethhdr = (struct ethhdr *)skb_mac_header(skb);
+ hash = hsr_mac_hash(port->hsr, ethhdr->h_source);
frame->is_supervision = is_supervision_frame(port->hsr, skb);
- frame->node_src = hsr_get_node(port, &hsr->node_db, skb,
+ frame->node_src = hsr_get_node(port, &hsr->node_db[hash], skb,
frame->is_supervision,
port->type);
if (!frame->node_src)
return -1; /* Unknown node and !is_supervision, or no mem */
- ethhdr = (struct ethhdr *)skb_mac_header(skb);
frame->is_vlan = false;
proto = ethhdr->h_proto;
diff --git a/net/hsr/hsr_framereg.c b/net/hsr/hsr_framereg.c
index 0775f0f95dbf..e96e39362468 100644
--- a/net/hsr/hsr_framereg.c
+++ b/net/hsr/hsr_framereg.c
@@ -15,11 +15,28 @@
#include <linux/etherdevice.h>
#include <linux/slab.h>
#include <linux/rculist.h>
+#include <linux/jhash.h>
#include "hsr_main.h"
#include "hsr_framereg.h"
#include "hsr_netlink.h"
-/* TODO: use hash lists for mac addresses (linux/jhash.h)? */
+u32 hsr_mac_hash(struct hsr_priv *hsr, const unsigned char *addr)
+{
+ u32 hash = jhash(addr, ETH_ALEN, hsr->hash_seed);
+
+ return reciprocal_scale(hash, hsr->hash_buckets);
+}
+
+struct hsr_node *hsr_node_get_first(struct hlist_head *head)
+{
+ struct hlist_node *first;
+
+ first = rcu_dereference(hlist_first_rcu(head));
+ if (first)
+ return hlist_entry(first, struct hsr_node, mac_list);
+
+ return NULL;
+}
/* seq_nr_after(a, b) - return true if a is after (higher in sequence than) b,
* false otherwise.
@@ -42,8 +59,7 @@ bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr)
{
struct hsr_node *node;
- node = list_first_or_null_rcu(&hsr->self_node_db, struct hsr_node,
- mac_list);
+ node = hsr_node_get_first(&hsr->self_node_db);
if (!node) {
WARN_ONCE(1, "HSR: No self node\n");
return false;
@@ -59,12 +75,12 @@ bool hsr_addr_is_self(struct hsr_priv *hsr, unsigned char *addr)
/* Search for mac entry. Caller must hold rcu read lock.
*/
-static struct hsr_node *find_node_by_addr_A(struct list_head *node_db,
+static struct hsr_node *find_node_by_addr_A(struct hlist_head *node_db,
const unsigned char addr[ETH_ALEN])
{
struct hsr_node *node;
- list_for_each_entry_rcu(node, node_db, mac_list) {
+ hlist_for_each_entry_rcu(node, node_db, mac_list) {
if (ether_addr_equal(node->macaddress_A, addr))
return node;
}
@@ -79,7 +95,7 @@ int hsr_create_self_node(struct hsr_priv *hsr,
const unsigned char addr_a[ETH_ALEN],
const unsigned char addr_b[ETH_ALEN])
{
- struct list_head *self_node_db = &hsr->self_node_db;
+ struct hlist_head *self_node_db = &hsr->self_node_db;
struct hsr_node *node, *oldnode;
node = kmalloc(sizeof(*node), GFP_KERNEL);
@@ -90,14 +106,13 @@ int hsr_create_self_node(struct hsr_priv *hsr,
ether_addr_copy(node->macaddress_B, addr_b);
spin_lock_bh(&hsr->list_lock);
- oldnode = list_first_or_null_rcu(self_node_db,
- struct hsr_node, mac_list);
+ oldnode = hsr_node_get_first(self_node_db);
if (oldnode) {
- list_replace_rcu(&oldnode->mac_list, &node->mac_list);
+ hlist_replace_rcu(&oldnode->mac_list, &node->mac_list);
spin_unlock_bh(&hsr->list_lock);
kfree_rcu(oldnode, rcu_head);
} else {
- list_add_tail_rcu(&node->mac_list, self_node_db);
+ hlist_add_tail_rcu(&node->mac_list, self_node_db);
spin_unlock_bh(&hsr->list_lock);
}
@@ -106,25 +121,25 @@ int hsr_create_self_node(struct hsr_priv *hsr,
void hsr_del_self_node(struct hsr_priv *hsr)
{
- struct list_head *self_node_db = &hsr->self_node_db;
+ struct hlist_head *self_node_db = &hsr->self_node_db;
struct hsr_node *node;
spin_lock_bh(&hsr->list_lock);
- node = list_first_or_null_rcu(self_node_db, struct hsr_node, mac_list);
+ node = hsr_node_get_first(self_node_db);
if (node) {
- list_del_rcu(&node->mac_list);
+ hlist_del_rcu(&node->mac_list);
kfree_rcu(node, rcu_head);
}
spin_unlock_bh(&hsr->list_lock);
}
-void hsr_del_nodes(struct list_head *node_db)
+void hsr_del_nodes(struct hlist_head *node_db)
{
struct hsr_node *node;
- struct hsr_node *tmp;
+ struct hlist_node *tmp;
- list_for_each_entry_safe(node, tmp, node_db, mac_list)
- kfree(node);
+ hlist_for_each_entry_safe(node, tmp, node_db, mac_list)
+ kfree_rcu(node, rcu_head);
}
void prp_handle_san_frame(bool san, enum hsr_port_type port,
@@ -145,7 +160,7 @@ void prp_handle_san_frame(bool san, enum hsr_port_type port,
* originating from the newly added node.
*/
static struct hsr_node *hsr_add_node(struct hsr_priv *hsr,
- struct list_head *node_db,
+ struct hlist_head *node_db,
unsigned char addr[],
u16 seq_out, bool san,
enum hsr_port_type rx_port)
@@ -175,14 +190,14 @@ static struct hsr_node *hsr_add_node(struct hsr_priv *hsr,
hsr->proto_ops->handle_san_frame(san, rx_port, new_node);
spin_lock_bh(&hsr->list_lock);
- list_for_each_entry_rcu(node, node_db, mac_list,
+ hlist_for_each_entry_rcu(node, node_db, mac_list,
lockdep_is_held(&hsr->list_lock)) {
if (ether_addr_equal(node->macaddress_A, addr))
goto out;
if (ether_addr_equal(node->macaddress_B, addr))
goto out;
}
- list_add_tail_rcu(&new_node->mac_list, node_db);
+ hlist_add_tail_rcu(&new_node->mac_list, node_db);
spin_unlock_bh(&hsr->list_lock);
return new_node;
out:
@@ -202,7 +217,7 @@ void prp_update_san_info(struct hsr_node *node, bool is_sup)
/* Get the hsr_node from which 'skb' was sent.
*/
-struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
+struct hsr_node *hsr_get_node(struct hsr_port *port, struct hlist_head *node_db,
struct sk_buff *skb, bool is_sup,
enum hsr_port_type rx_port)
{
@@ -218,7 +233,7 @@ struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
ethhdr = (struct ethhdr *)skb_mac_header(skb);
- list_for_each_entry_rcu(node, node_db, mac_list) {
+ hlist_for_each_entry_rcu(node, node_db, mac_list) {
if (ether_addr_equal(node->macaddress_A, ethhdr->h_source)) {
if (hsr->proto_ops->update_san_info)
hsr->proto_ops->update_san_info(node, is_sup);
@@ -268,11 +283,12 @@ void hsr_handle_sup_frame(struct hsr_frame_info *frame)
struct hsr_sup_tlv *hsr_sup_tlv;
struct hsr_node *node_real;
struct sk_buff *skb = NULL;
- struct list_head *node_db;
+ struct hlist_head *node_db;
struct ethhdr *ethhdr;
int i;
unsigned int pull_size = 0;
unsigned int total_pull_size = 0;
+ u32 hash;
/* Here either frame->skb_hsr or frame->skb_prp should be
* valid as supervision frame always will have protocol
@@ -310,11 +326,13 @@ void hsr_handle_sup_frame(struct hsr_frame_info *frame)
hsr_sp = (struct hsr_sup_payload *)skb->data;
/* Merge node_curr (registered on macaddress_B) into node_real */
- node_db = &port_rcv->hsr->node_db;
- node_real = find_node_by_addr_A(node_db, hsr_sp->macaddress_A);
+ node_db = port_rcv->hsr->node_db;
+ hash = hsr_mac_hash(hsr, hsr_sp->macaddress_A);
+ node_real = find_node_by_addr_A(&node_db[hash], hsr_sp->macaddress_A);
if (!node_real)
/* No frame received from AddrA of this node yet */
- node_real = hsr_add_node(hsr, node_db, hsr_sp->macaddress_A,
+ node_real = hsr_add_node(hsr, &node_db[hash],
+ hsr_sp->macaddress_A,
HSR_SEQNR_START - 1, true,
port_rcv->type);
if (!node_real)
@@ -348,7 +366,8 @@ void hsr_handle_sup_frame(struct hsr_frame_info *frame)
hsr_sp = (struct hsr_sup_payload *)skb->data;
/* Check if redbox mac and node mac are equal. */
- if (!ether_addr_equal(node_real->macaddress_A, hsr_sp->macaddress_A)) {
+ if (!ether_addr_equal(node_real->macaddress_A,
+ hsr_sp->macaddress_A)) {
/* This is a redbox supervision frame for a VDAN! */
goto done;
}
@@ -368,7 +387,7 @@ void hsr_handle_sup_frame(struct hsr_frame_info *frame)
node_real->addr_B_port = port_rcv->type;
spin_lock_bh(&hsr->list_lock);
- list_del_rcu(&node_curr->mac_list);
+ hlist_del_rcu(&node_curr->mac_list);
spin_unlock_bh(&hsr->list_lock);
kfree_rcu(node_curr, rcu_head);
@@ -406,6 +425,7 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
struct hsr_port *port)
{
struct hsr_node *node_dst;
+ u32 hash;
if (!skb_mac_header_was_set(skb)) {
WARN_ONCE(1, "%s: Mac header not set\n", __func__);
@@ -415,7 +435,8 @@ void hsr_addr_subst_dest(struct hsr_node *node_src, struct sk_buff *skb,
if (!is_unicast_ether_addr(eth_hdr(skb)->h_dest))
return;
- node_dst = find_node_by_addr_A(&port->hsr->node_db,
+ hash = hsr_mac_hash(port->hsr, eth_hdr(skb)->h_dest);
+ node_dst = find_node_by_addr_A(&port->hsr->node_db[hash],
eth_hdr(skb)->h_dest);
if (!node_dst) {
if (net_ratelimit())
@@ -491,59 +512,72 @@ static struct hsr_port *get_late_port(struct hsr_priv *hsr,
void hsr_prune_nodes(struct timer_list *t)
{
struct hsr_priv *hsr = from_timer(hsr, t, prune_timer);
+ struct hlist_node *tmp;
struct hsr_node *node;
- struct hsr_node *tmp;
struct hsr_port *port;
unsigned long timestamp;
unsigned long time_a, time_b;
+ int i;
spin_lock_bh(&hsr->list_lock);
- list_for_each_entry_safe(node, tmp, &hsr->node_db, mac_list) {
- /* Don't prune own node. Neither time_in[HSR_PT_SLAVE_A]
- * nor time_in[HSR_PT_SLAVE_B], will ever be updated for
- * the master port. Thus the master node will be repeatedly
- * pruned leading to packet loss.
- */
- if (hsr_addr_is_self(hsr, node->macaddress_A))
- continue;
-
- /* Shorthand */
- time_a = node->time_in[HSR_PT_SLAVE_A];
- time_b = node->time_in[HSR_PT_SLAVE_B];
-
- /* Check for timestamps old enough to risk wrap-around */
- if (time_after(jiffies, time_a + MAX_JIFFY_OFFSET / 2))
- node->time_in_stale[HSR_PT_SLAVE_A] = true;
- if (time_after(jiffies, time_b + MAX_JIFFY_OFFSET / 2))
- node->time_in_stale[HSR_PT_SLAVE_B] = true;
-
- /* Get age of newest frame from node.
- * At least one time_in is OK here; nodes get pruned long
- * before both time_ins can get stale
- */
- timestamp = time_a;
- if (node->time_in_stale[HSR_PT_SLAVE_A] ||
- (!node->time_in_stale[HSR_PT_SLAVE_B] &&
- time_after(time_b, time_a)))
- timestamp = time_b;
-
- /* Warn of ring error only as long as we get frames at all */
- if (time_is_after_jiffies(timestamp +
- msecs_to_jiffies(1.5 * MAX_SLAVE_DIFF))) {
- rcu_read_lock();
- port = get_late_port(hsr, node);
- if (port)
- hsr_nl_ringerror(hsr, node->macaddress_A, port);
- rcu_read_unlock();
- }
- /* Prune old entries */
- if (time_is_before_jiffies(timestamp +
+ for (i = 0; i < hsr->hash_buckets; i++) {
+ hlist_for_each_entry_safe(node, tmp, &hsr->node_db[i],
+ mac_list) {
+ /* Don't prune own node.
+ * Neither time_in[HSR_PT_SLAVE_A]
+ * nor time_in[HSR_PT_SLAVE_B], will ever be updated
+ * for the master port. Thus the master node will be
+ * repeatedly pruned leading to packet loss.
+ */
+ if (hsr_addr_is_self(hsr, node->macaddress_A))
+ continue;
+
+ /* Shorthand */
+ time_a = node->time_in[HSR_PT_SLAVE_A];
+ time_b = node->time_in[HSR_PT_SLAVE_B];
+
+ /* Check for timestamps old enough to
+ * risk wrap-around
+ */
+ if (time_after(jiffies, time_a + MAX_JIFFY_OFFSET / 2))
+ node->time_in_stale[HSR_PT_SLAVE_A] = true;
+ if (time_after(jiffies, time_b + MAX_JIFFY_OFFSET / 2))
+ node->time_in_stale[HSR_PT_SLAVE_B] = true;
+
+ /* Get age of newest frame from node.
+ * At least one time_in is OK here; nodes get pruned
+ * long before both time_ins can get stale
+ */
+ timestamp = time_a;
+ if (node->time_in_stale[HSR_PT_SLAVE_A] ||
+ (!node->time_in_stale[HSR_PT_SLAVE_B] &&
+ time_after(time_b, time_a)))
+ timestamp = time_b;
+
+ /* Warn of ring error only as long as we get
+ * frames at all
+ */
+ if (time_is_after_jiffies(timestamp +
+ msecs_to_jiffies(1.5 * MAX_SLAVE_DIFF))) {
+ rcu_read_lock();
+ port = get_late_port(hsr, node);
+ if (port)
+ hsr_nl_ringerror(hsr,
+ node->macaddress_A, port);
+ rcu_read_unlock();
+ }
+
+ /* Prune old entries */
+ if (time_is_before_jiffies(timestamp +
msecs_to_jiffies(HSR_NODE_FORGET_TIME))) {
- hsr_nl_nodedown(hsr, node->macaddress_A);
- list_del_rcu(&node->mac_list);
- /* Note that we need to free this entry later: */
- kfree_rcu(node, rcu_head);
+ hsr_nl_nodedown(hsr, node->macaddress_A);
+ hlist_del_rcu(&node->mac_list);
+ /* Note that we need to free this
+ * entry later:
+ */
+ kfree_rcu(node, rcu_head);
+ }
}
}
spin_unlock_bh(&hsr->list_lock);
@@ -557,17 +591,19 @@ void *hsr_get_next_node(struct hsr_priv *hsr, void *_pos,
unsigned char addr[ETH_ALEN])
{
struct hsr_node *node;
+ u32 hash;
+
+ hash = hsr_mac_hash(hsr, addr);
if (!_pos) {
- node = list_first_or_null_rcu(&hsr->node_db,
- struct hsr_node, mac_list);
+ node = hsr_node_get_first(&hsr->node_db[hash]);
if (node)
ether_addr_copy(addr, node->macaddress_A);
return node;
}
node = _pos;
- list_for_each_entry_continue_rcu(node, &hsr->node_db, mac_list) {
+ hlist_for_each_entry_continue_rcu(node, mac_list) {
ether_addr_copy(addr, node->macaddress_A);
return node;
}
@@ -587,8 +623,11 @@ int hsr_get_node_data(struct hsr_priv *hsr,
struct hsr_node *node;
struct hsr_port *port;
unsigned long tdiff;
+ u32 hash;
+
+ hash = hsr_mac_hash(hsr, addr);
- node = find_node_by_addr_A(&hsr->node_db, addr);
+ node = find_node_by_addr_A(&hsr->node_db[hash], addr);
if (!node)
return -ENOENT;
diff --git a/net/hsr/hsr_framereg.h b/net/hsr/hsr_framereg.h
index bdbb8c822ba1..d7cce6b161e3 100644
--- a/net/hsr/hsr_framereg.h
+++ b/net/hsr/hsr_framereg.h
@@ -28,9 +28,11 @@ struct hsr_frame_info {
bool is_from_san;
};
+u32 hsr_mac_hash(struct hsr_priv *hsr, const unsigned char *addr);
+struct hsr_node *hsr_node_get_first(struct hlist_head *head);
void hsr_del_self_node(struct hsr_priv *hsr);
-void hsr_del_nodes(struct list_head *node_db);
-struct hsr_node *hsr_get_node(struct hsr_port *port, struct list_head *node_db,
+void hsr_del_nodes(struct hlist_head *node_db);
+struct hsr_node *hsr_get_node(struct hsr_port *port, struct hlist_head *node_db,
struct sk_buff *skb, bool is_sup,
enum hsr_port_type rx_port);
void hsr_handle_sup_frame(struct hsr_frame_info *frame);
@@ -68,7 +70,7 @@ void prp_handle_san_frame(bool san, enum hsr_port_type port,
void prp_update_san_info(struct hsr_node *node, bool is_sup);
struct hsr_node {
- struct list_head mac_list;
+ struct hlist_node mac_list;
unsigned char macaddress_A[ETH_ALEN];
unsigned char macaddress_B[ETH_ALEN];
/* Local slave through which AddrB frames are received from this node */
diff --git a/net/hsr/hsr_main.h b/net/hsr/hsr_main.h
index ff9ec7634218..f83427d5a246 100644
--- a/net/hsr/hsr_main.h
+++ b/net/hsr/hsr_main.h
@@ -63,6 +63,9 @@ struct hsr_tag {
#define HSR_V1_SUP_LSDUSIZE 52
+#define HSR_HSIZE_SHIFT 8
+#define HSR_HSIZE BIT(HSR_HSIZE_SHIFT)
+
/* 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
* equivalently, the 4 most significant bits of HSR tag byte 14).
@@ -201,8 +204,8 @@ struct hsr_proto_ops {
struct hsr_priv {
struct rcu_head rcu_head;
struct list_head ports;
- struct list_head node_db; /* Known HSR nodes */
- struct list_head self_node_db; /* MACs of slaves */
+ struct hlist_head node_db[HSR_HSIZE]; /* Known HSR nodes */
+ struct hlist_head self_node_db; /* MACs of slaves */
struct timer_list announce_timer; /* Supervision frame dispatch */
struct timer_list prune_timer;
int announce_count;
@@ -212,6 +215,8 @@ struct hsr_priv {
spinlock_t seqnr_lock; /* locking for sequence_nr */
spinlock_t list_lock; /* locking for node list */
struct hsr_proto_ops *proto_ops;
+ u32 hash_buckets;
+ u32 hash_seed;
#define PRP_LAN_ID 0x5 /* 0x1010 for A and 0x1011 for B. Bit 0 is set
* based on SLAVE_A or SLAVE_B
*/
diff --git a/net/hsr/hsr_netlink.c b/net/hsr/hsr_netlink.c
index f3c8f91dbe2c..1405c037cf7a 100644
--- a/net/hsr/hsr_netlink.c
+++ b/net/hsr/hsr_netlink.c
@@ -105,6 +105,7 @@ static int hsr_newlink(struct net *src_net, struct net_device *dev,
static void hsr_dellink(struct net_device *dev, struct list_head *head)
{
struct hsr_priv *hsr = netdev_priv(dev);
+ int i;
del_timer_sync(&hsr->prune_timer);
del_timer_sync(&hsr->announce_timer);
@@ -113,7 +114,8 @@ static void hsr_dellink(struct net_device *dev, struct list_head *head)
hsr_del_ports(hsr);
hsr_del_self_node(hsr);
- hsr_del_nodes(&hsr->node_db);
+ for (i = 0; i < hsr->hash_buckets; i++)
+ hsr_del_nodes(&hsr->node_db[i]);
unregister_netdevice_queue(dev, head);
}
--
2.25.1
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