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net/mlx5: LAG, Refactor lag logic

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Wrap the lag pf access into two new macros:
1. ldev_for_each()
2. ldev_for_each_reverse()
The maximum number of lag ports and the index to `natvie_port_num`
mapping will be handled by the two new macros.
Users shouldn't use the for loop anymore.

Signed-off-by: Rongwei Liu <rongweil@nvidia.com>
Reviewed-by: Saeed Mahameed <saeedm@nvidia.com>
Reviewed-by: Mark Bloch <mbloch@nvidia.com>
Signed-off-by: Tariq Toukan <tariqt@nvidia.com>
Link: https://patch.msgid.link/20241219175841.1094544-2-tariqt@nvidia.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Rongwei Liu
2024-12-19 19:58:31 +02:00
committed by Jakub Kicinski
parent 8d94a744e1
commit ddbb5ddc43
6 changed files with 137 additions and 121 deletions
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13
drivers/net/ethernet/mellanox/mlx5/core/lag/debugfs.c
View File

@@ -105,20 +105,20 @@ static int mapping_show(struct seq_file *file, void *priv)
struct mlx5_lag *ldev;
bool hash = false;
bool lag_active;
int i, idx = 0;
int num_ports;
int i;
ldev = mlx5_lag_dev(dev);
mutex_lock(&ldev->lock);
lag_active = __mlx5_lag_is_active(ldev);
if (lag_active) {
if (test_bit(MLX5_LAG_MODE_FLAG_HASH_BASED, &ldev->mode_flags)) {
mlx5_infer_tx_enabled(&ldev->tracker, ldev->ports, ports,
mlx5_infer_tx_enabled(&ldev->tracker, ldev, ports,
&num_ports);
hash = true;
} else {
for (i = 0; i < ldev->ports; i++)
ports[i] = ldev->v2p_map[i];
mlx5_ldev_for_each(i, 0, ldev)
ports[idx++] = ldev->v2p_map[i];
num_ports = ldev->ports;
}
}
@@ -144,11 +144,8 @@ static int members_show(struct seq_file *file, void *priv)
ldev = mlx5_lag_dev(dev);
mutex_lock(&ldev->lock);
for (i = 0; i < ldev->ports; i++) {
if (!ldev->pf[i].dev)
continue;
mlx5_ldev_for_each(i, 0, ldev)
seq_printf(file, "%s\n", dev_name(ldev->pf[i].dev->device));
}
mutex_unlock(&ldev->lock);
return 0;

181
drivers/net/ethernet/mellanox/mlx5/core/lag/lag.c
View File

@@ -43,10 +43,6 @@
#include "mp.h"
#include "mpesw.h"
enum {
MLX5_LAG_EGRESS_PORT_1 = 1,
MLX5_LAG_EGRESS_PORT_2,
};
/* General purpose, use for short periods of time.
* Beware of lock dependencies (preferably, no locks should be acquired
@@ -72,7 +68,7 @@ static u8 lag_active_port_bits(struct mlx5_lag *ldev)
int num_enabled;
int idx;
mlx5_infer_tx_enabled(&ldev->tracker, ldev->ports, enabled_ports,
mlx5_infer_tx_enabled(&ldev->tracker, ldev, enabled_ports,
&num_enabled);
for (idx = 0; idx < num_enabled; idx++)
active_port |= BIT_MASK(enabled_ports[idx]);
@@ -113,7 +109,7 @@ static int mlx5_cmd_create_lag(struct mlx5_core_dev *dev, u8 *ports, int mode,
return mlx5_cmd_exec_in(dev, create_lag, in);
}
static int mlx5_cmd_modify_lag(struct mlx5_core_dev *dev, u8 num_ports,
static int mlx5_cmd_modify_lag(struct mlx5_core_dev *dev, struct mlx5_lag *ldev,
u8 *ports)
{
u32 in[MLX5_ST_SZ_DW(modify_lag_in)] = {};
@@ -148,33 +144,31 @@ int mlx5_cmd_destroy_vport_lag(struct mlx5_core_dev *dev)
}
EXPORT_SYMBOL(mlx5_cmd_destroy_vport_lag);
static void mlx5_infer_tx_disabled(struct lag_tracker *tracker, u8 num_ports,
static void mlx5_infer_tx_disabled(struct lag_tracker *tracker, struct mlx5_lag *ldev,
u8 *ports, int *num_disabled)
{
int i;
*num_disabled = 0;
for (i = 0; i < num_ports; i++) {
mlx5_ldev_for_each(i, 0, ldev)
if (!tracker->netdev_state[i].tx_enabled ||
!tracker->netdev_state[i].link_up)
ports[(*num_disabled)++] = i;
}
}
void mlx5_infer_tx_enabled(struct lag_tracker *tracker, u8 num_ports,
void mlx5_infer_tx_enabled(struct lag_tracker *tracker, struct mlx5_lag *ldev,
u8 *ports, int *num_enabled)
{
int i;
*num_enabled = 0;
for (i = 0; i < num_ports; i++) {
mlx5_ldev_for_each(i, 0, ldev)
if (tracker->netdev_state[i].tx_enabled &&
tracker->netdev_state[i].link_up)
ports[(*num_enabled)++] = i;
}
if (*num_enabled == 0)
mlx5_infer_tx_disabled(tracker, num_ports, ports, num_enabled);
mlx5_infer_tx_disabled(tracker, ldev, ports, num_enabled);
}
static void mlx5_lag_print_mapping(struct mlx5_core_dev *dev,
@@ -192,7 +186,7 @@ static void mlx5_lag_print_mapping(struct mlx5_core_dev *dev,
int j;
if (test_bit(MLX5_LAG_MODE_FLAG_HASH_BASED, &flags)) {
mlx5_infer_tx_enabled(tracker, ldev->ports, enabled_ports,
mlx5_infer_tx_enabled(tracker, ldev, enabled_ports,
&num_enabled);
for (i = 0; i < num_enabled; i++) {
err = scnprintf(buf + written, 4, "%d, ", enabled_ports[i] + 1);
@@ -203,7 +197,7 @@ static void mlx5_lag_print_mapping(struct mlx5_core_dev *dev,
buf[written - 2] = 0;
mlx5_core_info(dev, "lag map active ports: %s\n", buf);
} else {
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < ldev->buckets; j++) {
idx = i * ldev->buckets + j;
err = scnprintf(buf + written, 10,
@@ -286,7 +280,7 @@ int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
{
int i;
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (ldev->pf[i].netdev == ndev)
return i;
@@ -310,7 +304,7 @@ static bool __mlx5_lag_is_sriov(struct mlx5_lag *ldev)
* with mapping that points to active ports.
*/
static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
u8 num_ports,
struct mlx5_lag *ldev,
u8 buckets,
u8 *ports)
{
@@ -323,7 +317,7 @@ static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
int i;
int j;
for (i = 0; i < num_ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
if (tracker->netdev_state[i].tx_enabled &&
tracker->netdev_state[i].link_up)
enabled[enabled_ports_num++] = i;
@@ -334,15 +328,16 @@ static void mlx5_infer_tx_affinity_mapping(struct lag_tracker *tracker,
/* Use native mapping by default where each port's buckets
* point the native port: 1 1 1 .. 1 2 2 2 ... 2 3 3 3 ... 3 etc
*/
for (i = 0; i < num_ports; i++)
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < buckets; j++) {
idx = i * buckets + j;
ports[idx] = MLX5_LAG_EGRESS_PORT_1 + i;
ports[idx] = i + 1;
}
}
/* If all ports are disabled/enabled keep native mapping */
if (enabled_ports_num == num_ports ||
disabled_ports_num == num_ports)
if (enabled_ports_num == ldev->ports ||
disabled_ports_num == ldev->ports)
return;
/* Go over the disabled ports and for each assign a random active port */
@@ -358,7 +353,7 @@ static bool mlx5_lag_has_drop_rule(struct mlx5_lag *ldev)
{
int i;
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (ldev->pf[i].has_drop)
return true;
return false;
@@ -368,7 +363,7 @@ static void mlx5_lag_drop_rule_cleanup(struct mlx5_lag *ldev)
{
int i;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
if (!ldev->pf[i].has_drop)
continue;
@@ -396,7 +391,7 @@ static void mlx5_lag_drop_rule_setup(struct mlx5_lag *ldev,
if (!ldev->tracker.has_inactive)
return;
mlx5_infer_tx_disabled(tracker, ldev->ports, disabled_ports, &num_disabled);
mlx5_infer_tx_disabled(tracker, ldev, disabled_ports, &num_disabled);
for (i = 0; i < num_disabled; i++) {
disabled_index = disabled_ports[i];
@@ -442,7 +437,7 @@ static int _mlx5_modify_lag(struct mlx5_lag *ldev, u8 *ports)
return mlx5_cmd_modify_active_port(dev0, active_ports);
}
return mlx5_cmd_modify_lag(dev0, ldev->ports, ports);
return mlx5_cmd_modify_lag(dev0, ldev, ports);
}
static struct net_device *mlx5_lag_active_backup_get_netdev(struct mlx5_core_dev *dev)
@@ -458,7 +453,7 @@ static struct net_device *mlx5_lag_active_backup_get_netdev(struct mlx5_core_dev
if (!ldev)
goto unlock;
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (ldev->tracker.netdev_state[i].tx_enabled)
ndev = ldev->pf[i].netdev;
if (!ndev)
@@ -483,9 +478,9 @@ void mlx5_modify_lag(struct mlx5_lag *ldev,
int i;
int j;
mlx5_infer_tx_affinity_mapping(tracker, ldev->ports, ldev->buckets, ports);
mlx5_infer_tx_affinity_mapping(tracker, ldev, ldev->buckets, ports);
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < ldev->buckets; j++) {
idx = i * ldev->buckets + j;
if (ports[idx] == ldev->v2p_map[idx])
@@ -596,9 +591,9 @@ static int mlx5_lag_create_single_fdb(struct mlx5_lag *ldev)
struct mlx5_core_dev *dev0 = ldev->pf[MLX5_LAG_P1].dev;
struct mlx5_eswitch *master_esw = dev0->priv.eswitch;
int err;
int i;
int i, j;
for (i = MLX5_LAG_P1 + 1; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 1, ldev) {
struct mlx5_eswitch *slave_esw = ldev->pf[i].dev->priv.eswitch;
err = mlx5_eswitch_offloads_single_fdb_add_one(master_esw,
@@ -608,9 +603,9 @@ static int mlx5_lag_create_single_fdb(struct mlx5_lag *ldev)
}
return 0;
err:
for (; i > MLX5_LAG_P1; i--)
mlx5_ldev_for_each_reverse(j, i, 1, ldev)
mlx5_eswitch_offloads_single_fdb_del_one(master_esw,
ldev->pf[i].dev->priv.eswitch);
ldev->pf[j].dev->priv.eswitch);
return err;
}
@@ -671,7 +666,7 @@ int mlx5_activate_lag(struct mlx5_lag *ldev,
return err;
if (mode != MLX5_LAG_MODE_MPESW) {
mlx5_infer_tx_affinity_mapping(tracker, ldev->ports, ldev->buckets, ldev->v2p_map);
mlx5_infer_tx_affinity_mapping(tracker, ldev, ldev->buckets, ldev->v2p_map);
if (test_bit(MLX5_LAG_MODE_FLAG_HASH_BASED, &flags)) {
err = mlx5_lag_port_sel_create(ldev, tracker->hash_type,
ldev->v2p_map);
@@ -722,7 +717,7 @@ int mlx5_deactivate_lag(struct mlx5_lag *ldev)
mlx5_lag_mp_reset(ldev);
if (test_bit(MLX5_LAG_MODE_FLAG_SHARED_FDB, &flags)) {
for (i = MLX5_LAG_P1 + 1; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 1, ldev)
mlx5_eswitch_offloads_single_fdb_del_one(master_esw,
ldev->pf[i].dev->priv.eswitch);
clear_bit(MLX5_LAG_MODE_FLAG_SHARED_FDB, &flags);
@@ -766,7 +761,7 @@ bool mlx5_lag_check_prereq(struct mlx5_lag *ldev)
return false;
#ifdef CONFIG_MLX5_ESWITCH
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
dev = ldev->pf[i].dev;
if (mlx5_eswitch_num_vfs(dev->priv.eswitch) && !is_mdev_switchdev_mode(dev))
return false;
@@ -774,17 +769,17 @@ bool mlx5_lag_check_prereq(struct mlx5_lag *ldev)
dev = ldev->pf[MLX5_LAG_P1].dev;
mode = mlx5_eswitch_mode(dev);
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (mlx5_eswitch_mode(ldev->pf[i].dev) != mode)
return false;
#else
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (mlx5_sriov_is_enabled(ldev->pf[i].dev))
return false;
#endif
roce_support = mlx5_get_roce_state(ldev->pf[MLX5_LAG_P1].dev);
for (i = 1; i < ldev->ports; i++)
mlx5_ldev_for_each(i, MLX5_LAG_P2, ldev)
if (mlx5_get_roce_state(ldev->pf[i].dev) != roce_support)
return false;
@@ -795,10 +790,7 @@ void mlx5_lag_add_devices(struct mlx5_lag *ldev)
{
int i;
for (i = 0; i < ldev->ports; i++) {
if (!ldev->pf[i].dev)
continue;
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].dev->priv.flags &
MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV)
continue;
@@ -812,10 +804,7 @@ void mlx5_lag_remove_devices(struct mlx5_lag *ldev)
{
int i;
for (i = 0; i < ldev->ports; i++) {
if (!ldev->pf[i].dev)
continue;
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].dev->priv.flags &
MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV)
continue;
@@ -842,7 +831,7 @@ void mlx5_disable_lag(struct mlx5_lag *ldev)
dev0->priv.flags |= MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
mlx5_rescan_drivers_locked(dev0);
}
for (i = 1; i < ldev->ports; i++)
mlx5_ldev_for_each(i, MLX5_LAG_P2, ldev)
mlx5_nic_vport_disable_roce(ldev->pf[i].dev);
}
@@ -854,7 +843,7 @@ void mlx5_disable_lag(struct mlx5_lag *ldev)
mlx5_lag_add_devices(ldev);
if (shared_fdb)
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
if (!(ldev->pf[i].dev->priv.flags & MLX5_PRIV_FLAGS_DISABLE_ALL_ADEV))
mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
}
@@ -864,7 +853,7 @@ static bool mlx5_shared_fdb_supported(struct mlx5_lag *ldev)
struct mlx5_core_dev *dev;
int i;
for (i = MLX5_LAG_P1 + 1; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, MLX5_LAG_P1 + 1, ldev) {
dev = ldev->pf[i].dev;
if (is_mdev_switchdev_mode(dev) &&
mlx5_eswitch_vport_match_metadata_enabled(dev->priv.eswitch) &&
@@ -892,11 +881,11 @@ static bool mlx5_lag_is_roce_lag(struct mlx5_lag *ldev)
bool roce_lag = true;
int i;
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
roce_lag = roce_lag && !mlx5_sriov_is_enabled(ldev->pf[i].dev);
#ifdef CONFIG_MLX5_ESWITCH
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
roce_lag = roce_lag && is_mdev_legacy_mode(ldev->pf[i].dev);
#endif
@@ -956,7 +945,7 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
} else if (roce_lag) {
dev0->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
mlx5_rescan_drivers_locked(dev0);
for (i = 1; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, MLX5_LAG_P2, ldev) {
if (mlx5_get_roce_state(ldev->pf[i].dev))
mlx5_nic_vport_enable_roce(ldev->pf[i].dev);
}
@@ -966,7 +955,7 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
dev0->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
mlx5_rescan_drivers_locked(dev0);
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
err = mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
if (err)
break;
@@ -977,7 +966,7 @@ static void mlx5_do_bond(struct mlx5_lag *ldev)
mlx5_rescan_drivers_locked(dev0);
mlx5_deactivate_lag(ldev);
mlx5_lag_add_devices(ldev);
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
mlx5_core_err(dev0, "Failed to enable lag\n");
return;
@@ -1010,12 +999,9 @@ struct mlx5_devcom_comp_dev *mlx5_lag_get_devcom_comp(struct mlx5_lag *ldev)
int i;
mutex_lock(&ldev->lock);
for (i = 0; i < ldev->ports; i++) {
if (ldev->pf[i].dev) {
devcom = ldev->pf[i].dev->priv.hca_devcom_comp;
break;
}
}
i = mlx5_get_next_ldev_func(ldev, 0);
if (i < MLX5_MAX_PORTS)
devcom = ldev->pf[i].dev->priv.hca_devcom_comp;
mutex_unlock(&ldev->lock);
return devcom;
}
@@ -1068,7 +1054,7 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
u8 bond_status = 0;
int num_slaves = 0;
int changed = 0;
int idx;
int i, idx = -1;
if (!netif_is_lag_master(upper))
return 0;
@@ -1083,8 +1069,13 @@ static int mlx5_handle_changeupper_event(struct mlx5_lag *ldev,
*/
rcu_read_lock();
for_each_netdev_in_bond_rcu(upper, ndev_tmp) {
idx = mlx5_lag_dev_get_netdev_idx(ldev, ndev_tmp);
if (idx >= 0) {
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].netdev == ndev_tmp) {
idx++;
break;
}
}
if (i < MLX5_MAX_PORTS) {
slave = bond_slave_get_rcu(ndev_tmp);
if (slave)
has_inactive |= bond_is_slave_inactive(slave);
@@ -1234,15 +1225,12 @@ static int mlx5_lag_netdev_event(struct notifier_block *this,
}
static void mlx5_ldev_add_netdev(struct mlx5_lag *ldev,
struct mlx5_core_dev *dev,
struct net_device *netdev)
struct mlx5_core_dev *dev,
struct net_device *netdev)
{
unsigned int fn = mlx5_get_dev_index(dev);
unsigned long flags;
if (fn >= ldev->ports)
return;
spin_lock_irqsave(&lag_lock, flags);
ldev->pf[fn].netdev = netdev;
ldev->tracker.netdev_state[fn].link_up = 0;
@@ -1257,7 +1245,7 @@ static void mlx5_ldev_remove_netdev(struct mlx5_lag *ldev,
int i;
spin_lock_irqsave(&lag_lock, flags);
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].netdev == netdev) {
ldev->pf[i].netdev = NULL;
break;
@@ -1267,13 +1255,10 @@ static void mlx5_ldev_remove_netdev(struct mlx5_lag *ldev,
}
static void mlx5_ldev_add_mdev(struct mlx5_lag *ldev,
struct mlx5_core_dev *dev)
struct mlx5_core_dev *dev)
{
unsigned int fn = mlx5_get_dev_index(dev);
if (fn >= ldev->ports)
return;
ldev->pf[fn].dev = dev;
dev->priv.lag = ldev;
}
@@ -1281,16 +1266,13 @@ static void mlx5_ldev_add_mdev(struct mlx5_lag *ldev,
static void mlx5_ldev_remove_mdev(struct mlx5_lag *ldev,
struct mlx5_core_dev *dev)
{
int i;
int fn;
for (i = 0; i < ldev->ports; i++)
if (ldev->pf[i].dev == dev)
break;
if (i == ldev->ports)
fn = mlx5_get_dev_index(dev);
if (ldev->pf[fn].dev != dev)
return;
ldev->pf[i].dev = NULL;
ldev->pf[fn].dev = NULL;
dev->priv.lag = NULL;
}
@@ -1406,7 +1388,6 @@ void mlx5_lag_add_netdev(struct mlx5_core_dev *dev,
mutex_lock(&ldev->lock);
mlx5_ldev_add_netdev(ldev, dev, netdev);
for (i = 0; i < ldev->ports; i++)
if (!ldev->pf[i].netdev)
break;
@@ -1417,6 +1398,26 @@ void mlx5_lag_add_netdev(struct mlx5_core_dev *dev,
mlx5_queue_bond_work(ldev, 0);
}
int mlx5_get_pre_ldev_func(struct mlx5_lag *ldev, int start_idx, int end_idx)
{
int i;
for (i = start_idx; i >= end_idx; i--)
if (ldev->pf[i].dev)
return i;
return -1;
}
int mlx5_get_next_ldev_func(struct mlx5_lag *ldev, int start_idx)
{
int i;
for (i = start_idx; i < MLX5_MAX_PORTS; i++)
if (ldev->pf[i].dev)
return i;
return MLX5_MAX_PORTS;
}
bool mlx5_lag_is_roce(struct mlx5_core_dev *dev)
{
struct mlx5_lag *ldev;
@@ -1467,7 +1468,7 @@ bool mlx5_lag_is_master(struct mlx5_core_dev *dev)
{
struct mlx5_lag *ldev;
unsigned long flags;
bool res;
bool res = false;
spin_lock_irqsave(&lag_lock, flags);
ldev = mlx5_lag_dev(dev);
@@ -1555,7 +1556,7 @@ u8 mlx5_lag_get_slave_port(struct mlx5_core_dev *dev,
if (!(ldev && __mlx5_lag_is_roce(ldev)))
goto unlock;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].netdev == slave) {
port = i;
break;
@@ -1594,13 +1595,13 @@ struct mlx5_core_dev *mlx5_lag_get_next_peer_mdev(struct mlx5_core_dev *dev, int
if (!ldev)
goto unlock;
if (*i == ldev->ports)
if (*i == MLX5_MAX_PORTS)
goto unlock;
for (idx = *i; idx < ldev->ports; idx++)
mlx5_ldev_for_each(idx, *i, ldev)
if (ldev->pf[idx].dev != dev)
break;
if (idx == ldev->ports) {
if (idx == MLX5_MAX_PORTS) {
*i = idx;
goto unlock;
}
@@ -1621,10 +1622,10 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
{
int outlen = MLX5_ST_SZ_BYTES(query_cong_statistics_out);
struct mlx5_core_dev **mdev;
int ret = 0, i, j, idx = 0;
struct mlx5_lag *ldev;
unsigned long flags;
int num_ports;
int ret, i, j;
void *out;
out = kvzalloc(outlen, GFP_KERNEL);
@@ -1643,8 +1644,8 @@ int mlx5_lag_query_cong_counters(struct mlx5_core_dev *dev,
ldev = mlx5_lag_dev(dev);
if (ldev && __mlx5_lag_is_active(ldev)) {
num_ports = ldev->ports;
for (i = 0; i < ldev->ports; i++)
mdev[i] = ldev->pf[i].dev;
mlx5_ldev_for_each(i, 0, ldev)
mdev[idx++] = ldev->pf[i].dev;
} else {
num_ports = 1;
mdev[MLX5_LAG_P1] = dev;

14
drivers/net/ethernet/mellanox/mlx5/core/lag/lag.h
View File

@@ -103,7 +103,7 @@ int mlx5_lag_dev_get_netdev_idx(struct mlx5_lag *ldev,
struct net_device *ndev);
char *mlx5_get_str_port_sel_mode(enum mlx5_lag_mode mode, unsigned long flags);
void mlx5_infer_tx_enabled(struct lag_tracker *tracker, u8 num_ports,
void mlx5_infer_tx_enabled(struct lag_tracker *tracker, struct mlx5_lag *ldev,
u8 *ports, int *num_enabled);
void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev);
@@ -119,9 +119,21 @@ static inline bool mlx5_lag_is_supported(struct mlx5_core_dev *dev)
if (!MLX5_CAP_GEN(dev, vport_group_manager) ||
!MLX5_CAP_GEN(dev, lag_master) ||
MLX5_CAP_GEN(dev, num_lag_ports) < 2 ||
mlx5_get_dev_index(dev) >= MLX5_MAX_PORTS ||
MLX5_CAP_GEN(dev, num_lag_ports) > MLX5_MAX_PORTS)
return false;
return true;
}
#define mlx5_ldev_for_each(i, start_index, ldev) \
for (int tmp = start_index; tmp = mlx5_get_next_ldev_func(ldev, tmp), \
i = tmp, tmp < MLX5_MAX_PORTS; tmp++)
#define mlx5_ldev_for_each_reverse(i, start_index, end_index, ldev) \
for (int tmp = start_index, tmp1 = end_index; \
tmp = mlx5_get_pre_ldev_func(ldev, tmp, tmp1), \
i = tmp, tmp >= tmp1; tmp--)
int mlx5_get_pre_ldev_func(struct mlx5_lag *ldev, int start_idx, int end_idx);
int mlx5_get_next_ldev_func(struct mlx5_lag *ldev, int start_idx);
#endif /* __MLX5_LAG_H__ */

24
drivers/net/ethernet/mellanox/mlx5/core/lag/mp.c
View File

@@ -153,6 +153,7 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev, unsigned long event,
struct net_device *nh_dev0, *nh_dev1;
struct fib_info *fi = fen_info->fi;
struct lag_mp *mp = &ldev->lag_mp;
int i, dev_idx = 0;
/* Handle delete event */
if (event == FIB_EVENT_ENTRY_DEL) {
@@ -186,10 +187,12 @@ static void mlx5_lag_fib_route_event(struct mlx5_lag *ldev, unsigned long event,
if (!nh_dev1) {
if (__mlx5_lag_is_active(ldev)) {
int i = mlx5_lag_dev_get_netdev_idx(ldev, nh_dev0);
i++;
mlx5_lag_set_port_affinity(ldev, i);
mlx5_ldev_for_each(i, 0, ldev) {
dev_idx++;
if (ldev->pf[i].netdev == nh_dev0)
break;
}
mlx5_lag_set_port_affinity(ldev, dev_idx);
mlx5_lag_fib_set(mp, fi, fen_info->dst, fen_info->dst_len);
}
@@ -214,6 +217,7 @@ static void mlx5_lag_fib_nexthop_event(struct mlx5_lag *ldev,
struct fib_info *fi)
{
struct lag_mp *mp = &ldev->lag_mp;
int i, dev_idx = 0;
/* Check the nh event is related to the route */
if (!mp->fib.mfi || mp->fib.mfi != fi)
@@ -221,11 +225,15 @@ static void mlx5_lag_fib_nexthop_event(struct mlx5_lag *ldev,
/* nh added/removed */
if (event == FIB_EVENT_NH_DEL) {
int i = mlx5_lag_dev_get_netdev_idx(ldev, fib_nh->fib_nh_dev);
mlx5_ldev_for_each(i, 0, ldev) {
if (ldev->pf[i].netdev == fib_nh->fib_nh_dev)
break;
dev_idx++;
}
if (i >= 0) {
i = (i + 1) % 2 + 1; /* peer port */
mlx5_lag_set_port_affinity(ldev, i);
if (dev_idx >= 0) {
dev_idx = (dev_idx + 1) % 2 + 1; /* peer port */
mlx5_lag_set_port_affinity(ldev, dev_idx);
}
} else if (event == FIB_EVENT_NH_ADD &&
fib_info_num_path(fi) == 2) {

10
drivers/net/ethernet/mellanox/mlx5/core/lag/mpesw.c
View File

@@ -15,7 +15,7 @@ static void mlx5_mpesw_metadata_cleanup(struct mlx5_lag *ldev)
u32 pf_metadata;
int i;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
dev = ldev->pf[i].dev;
esw = dev->priv.eswitch;
pf_metadata = ldev->lag_mpesw.pf_metadata[i];
@@ -36,7 +36,7 @@ static int mlx5_mpesw_metadata_set(struct mlx5_lag *ldev)
u32 pf_metadata;
int i, err;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
dev = ldev->pf[i].dev;
esw = dev->priv.eswitch;
pf_metadata = mlx5_esw_match_metadata_alloc(esw);
@@ -52,7 +52,7 @@ static int mlx5_mpesw_metadata_set(struct mlx5_lag *ldev)
goto err_metadata;
}
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
dev = ldev->pf[i].dev;
mlx5_notifier_call_chain(dev->priv.events, MLX5_DEV_EVENT_MULTIPORT_ESW,
(void *)0);
@@ -98,7 +98,7 @@ static int enable_mpesw(struct mlx5_lag *ldev)
dev0->priv.flags &= ~MLX5_PRIV_FLAGS_DISABLE_IB_ADEV;
mlx5_rescan_drivers_locked(dev0);
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
err = mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
if (err)
goto err_rescan_drivers;
@@ -112,7 +112,7 @@ static int enable_mpesw(struct mlx5_lag *ldev)
mlx5_deactivate_lag(ldev);
err_add_devices:
mlx5_lag_add_devices(ldev);
for (i = 0; i < ldev->ports; i++)
mlx5_ldev_for_each(i, 0, ldev)
mlx5_eswitch_reload_ib_reps(ldev->pf[i].dev->priv.eswitch);
mlx5_mpesw_metadata_cleanup(ldev);
return err;

16
drivers/net/ethernet/mellanox/mlx5/core/lag/port_sel.c
View File

@@ -44,9 +44,7 @@ static int mlx5_lag_create_port_sel_table(struct mlx5_lag *ldev,
struct mlx5_flow_destination dest = {};
MLX5_DECLARE_FLOW_ACT(flow_act);
struct mlx5_flow_namespace *ns;
int err, i;
int idx;
int j;
int err, i, j, k, idx;
ft_attr.max_fte = ldev->ports * ldev->buckets;
ft_attr.level = MLX5_LAG_FT_LEVEL_DEFINER;
@@ -74,7 +72,7 @@ static int mlx5_lag_create_port_sel_table(struct mlx5_lag *ldev,
dest.type = MLX5_FLOW_DESTINATION_TYPE_UPLINK;
dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
flow_act.flags |= FLOW_ACT_NO_APPEND;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < ldev->buckets; j++) {
u8 affinity;
@@ -88,13 +86,13 @@ static int mlx5_lag_create_port_sel_table(struct mlx5_lag *ldev,
&dest, 1);
if (IS_ERR(lag_definer->rules[idx])) {
err = PTR_ERR(lag_definer->rules[idx]);
do {
mlx5_ldev_for_each_reverse(k, i, 0, ldev) {
while (j--) {
idx = i * ldev->buckets + j;
idx = k * ldev->buckets + j;
mlx5_del_flow_rules(lag_definer->rules[idx]);
}
j = ldev->buckets;
} while (i--);
};
goto destroy_fg;
}
}
@@ -346,7 +344,7 @@ static void mlx5_lag_destroy_definer(struct mlx5_lag *ldev,
int i;
int j;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < ldev->buckets; j++) {
idx = i * ldev->buckets + j;
mlx5_del_flow_rules(lag_definer->rules[idx]);
@@ -565,7 +563,7 @@ static int __mlx5_lag_modify_definers_destinations(struct mlx5_lag *ldev,
dest.type = MLX5_FLOW_DESTINATION_TYPE_UPLINK;
dest.vport.flags |= MLX5_FLOW_DEST_VPORT_VHCA_ID;
for (i = 0; i < ldev->ports; i++) {
mlx5_ldev_for_each(i, 0, ldev) {
for (j = 0; j < ldev->buckets; j++) {
idx = i * ldev->buckets + j;
if (ldev->v2p_map[idx] == ports[idx])