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Code Issues

realtek: reduce excessive logging for FDB operations

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Currently several messages at KERN_INFO level are printed for every FDB
del/dump operation. This can cause a significant slowdown for example
while using "bridge fdb", and may even trigger a watchdog.

Remove most of these log messages, as the new L2 table debugfs node
should be a good replacement. Change the remaining messages to
KERN_DEBUG level.

Signed-off-by: Jan Hoffmann <jan@3e8.eu>
This commit is contained in:
Jan Hoffmann 2022-10-14 23:06:17 +02:00 committed by Sander Vanheule
parent ae9487c535
commit 19b86658b7
2 changed files with 3 additions and 68 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

55
target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/dsa.c
View File

@ -1535,28 +1535,6 @@ static int rtl83xx_vlan_del(struct dsa_switch *ds, int port,
return 0;
}
static void dump_l2_entry(struct rtl838x_l2_entry *e)
{
pr_info("MAC: %02x:%02x:%02x:%02x:%02x:%02x vid: %d, rvid: %d, port: %d, valid: %d\n",
e->mac[0], e->mac[1], e->mac[2], e->mac[3], e->mac[4], e->mac[5],
e->vid, e->rvid, e->port, e->valid);
if (e->type != L2_MULTICAST) {
pr_info("Type: %d, is_static: %d, is_ip_mc: %d, is_ipv6_mc: %d, block_da: %d\n",
e->type, e->is_static, e->is_ip_mc, e->is_ipv6_mc, e->block_da);
pr_info(" block_sa: %d, susp: %d, nh: %d, age: %d, is_trunk: %d, trunk: %d\n",
e->block_sa, e->suspended, e->next_hop, e->age, e->is_trunk, e->trunk);
}
if (e->type == L2_MULTICAST)
pr_info(" L2_MULTICAST mc_portmask_index: %d\n", e->mc_portmask_index);
if (e->is_ip_mc || e->is_ipv6_mc)
pr_info(" mc_portmask_index: %d, mc_gip: %d, mc_sip: %d\n",
e->mc_portmask_index, e->mc_gip, e->mc_sip);
pr_info(" stack_dev: %d\n", e->stack_dev);
if (e->next_hop)
pr_info(" nh_route_id: %d\n", e->nh_route_id);
}
static void rtl83xx_setup_l2_uc_entry(struct rtl838x_l2_entry *e, int port, int vid, u64 mac)
{
e->is_ip_mc = e->is_ipv6_mc = false;
@ -1685,15 +1663,14 @@ static int rtl83xx_port_fdb_del(struct dsa_switch *ds, int port,
int err = 0, idx;
u64 seed = priv->r->l2_hash_seed(mac, vid);
pr_info("In %s, mac %llx, vid: %d\n", __func__, mac, vid);
pr_debug("In %s, mac %llx, vid: %d\n", __func__, mac, vid);
mutex_lock(&priv->reg_mutex);
idx = rtl83xx_find_l2_hash_entry(priv, seed, true, &e);
if (idx >= 0) {
pr_info("Found entry index %d, key %d and bucket %d\n", idx, idx >> 2, idx & 3);
pr_debug("Found entry index %d, key %d and bucket %d\n", idx, idx >> 2, idx & 3);
e.valid = false;
dump_l2_entry(&e);
priv->r->write_l2_entry_using_hash(idx >> 2, idx & 0x3, &e);
goto out;
}
@ -1718,8 +1695,6 @@ static int rtl83xx_port_fdb_dump(struct dsa_switch *ds, int port,
struct rtl838x_l2_entry e;
struct rtl838x_switch_priv *priv = ds->priv;
int i;
u32 fid, pkey;
u64 mac;
mutex_lock(&priv->reg_mutex);
@ -1729,30 +1704,8 @@ static int rtl83xx_port_fdb_dump(struct dsa_switch *ds, int port,
if (!e.valid)
continue;
if (e.port == port || e.port == RTL930X_PORT_IGNORE) {
u64 seed;
u32 key;
fid = ((i >> 2) & 0x3ff) | (e.rvid & ~0x3ff);
mac = ether_addr_to_u64(&e.mac[0]);
pkey = priv->r->l2_hash_key(priv, priv->r->l2_hash_seed(mac, fid));
fid = (pkey & 0x3ff) | (fid & ~0x3ff);
pr_info("-> index %d, key %x, bucket %d, dmac %016llx, fid: %x rvid: %x\n",
i, i >> 2, i & 0x3, mac, fid, e.rvid);
dump_l2_entry(&e);
seed = priv->r->l2_hash_seed(mac, e.rvid);
key = priv->r->l2_hash_key(priv, seed);
pr_info("seed: %016llx, key based on rvid: %08x\n", seed, key);
if (e.port == port || e.port == RTL930X_PORT_IGNORE)
cb(e.mac, e.vid, e.is_static, data);
}
if (e.type == L2_MULTICAST) {
u64 portmask = priv->r->read_mcast_pmask(e.mc_portmask_index);
if (portmask & BIT_ULL(port)) {
dump_l2_entry(&e);
pr_info(" PM: %016llx\n", portmask);
}
}
}
for (i = 0; i < 64; i++) {
@ -1876,7 +1829,6 @@ int rtl83xx_port_mdb_del(struct dsa_switch *ds, int port,
portmask = rtl83xx_mc_group_del_port(priv, e.mc_portmask_index, port);
if (!portmask) {
e.valid = false;
// dump_l2_entry(&e);
priv->r->write_l2_entry_using_hash(idx >> 2, idx & 0x3, &e);
}
goto out;
@ -1889,7 +1841,6 @@ int rtl83xx_port_mdb_del(struct dsa_switch *ds, int port,
portmask = rtl83xx_mc_group_del_port(priv, e.mc_portmask_index, port);
if (!portmask) {
e.valid = false;
// dump_l2_entry(&e);
priv->r->write_cam(idx, &e);
}
goto out;

16
target/linux/realtek/files-5.10/drivers/net/dsa/rtl83xx/rtl930x.c
View File

@ -579,22 +579,6 @@ static void rtl930x_write_cam(int idx, struct rtl838x_l2_entry *e)
rtl_table_release(q);
}
static void dump_l2_entry(struct rtl838x_l2_entry *e)
{
pr_info("MAC: %02x:%02x:%02x:%02x:%02x:%02x vid: %d, rvid: %d, port: %d, valid: %d\n",
e->mac[0], e->mac[1], e->mac[2], e->mac[3], e->mac[4], e->mac[5],
e->vid, e->rvid, e->port, e->valid);
pr_info("Type: %d, is_static: %d, is_ip_mc: %d, is_ipv6_mc: %d, block_da: %d\n",
e->type, e->is_static, e->is_ip_mc, e->is_ipv6_mc, e->block_da);
pr_info(" block_sa: %d, suspended: %d, next_hop: %d, age: %d, is_trunk: %d, trunk: %d\n",
e->block_sa, e->suspended, e->next_hop, e->age, e->is_trunk, e->trunk);
if (e->is_ip_mc || e->is_ipv6_mc)
pr_info(" mc_portmask_index: %d, mc_gip: %d, mc_sip: %d\n",
e->mc_portmask_index, e->mc_gip, e->mc_sip);
pr_info(" stac_dev: %d, nh_route_id: %d, port: %d, dev_id\n",
e->stack_dev, e->nh_route_id, e->port);
}
static u64 rtl930x_read_mcast_pmask(int idx)
{
u32 portmask;