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// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
/* Copyright (c) 2022, NVIDIA CORPORATION & AFFILIATES. All rights reserved. */
#include "lag.h"
static char *get_str_mode_type(struct mlx5_lag *ldev)
{
switch (ldev->mode) {
case MLX5_LAG_MODE_ROCE: return "roce";
case MLX5_LAG_MODE_SRIOV: return "switchdev";
case MLX5_LAG_MODE_MULTIPATH: return "multipath";
case MLX5_LAG_MODE_MPESW: return "multiport_eswitch";
default: return "invalid";
}
return NULL;
}
static int type_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
struct mlx5_lag *ldev;
char *mode = NULL;
ldev = dev->priv.lag;
mutex_lock(&ldev->lock);
if (__mlx5_lag_is_active(ldev))
mode = get_str_mode_type(ldev);
mutex_unlock(&ldev->lock);
if (!mode)
return -EINVAL;
seq_printf(file, "%s\n", mode);
return 0;
}
static int port_sel_mode_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
struct mlx5_lag *ldev;
int ret = 0;
char *mode;
ldev = dev->priv.lag;
mutex_lock(&ldev->lock);
if (__mlx5_lag_is_active(ldev))
mode = mlx5_get_str_port_sel_mode(ldev->mode, ldev->mode_flags);
else
ret = -EINVAL;
mutex_unlock(&ldev->lock);
if (ret)
return ret;
seq_printf(file, "%s\n", mode);
return 0;
}
static int state_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
struct mlx5_lag *ldev;
bool active;
ldev = dev->priv.lag;
mutex_lock(&ldev->lock);
active = __mlx5_lag_is_active(ldev);
mutex_unlock(&ldev->lock);
seq_printf(file, "%s\n", active ? "active" : "disabled");
return 0;
}
static int flags_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
bool fdb_sel_mode_native;
struct mlx5_lag *ldev;
bool shared_fdb;
bool lag_active;
ldev = dev->priv.lag;
mutex_lock(&ldev->lock);
lag_active = __mlx5_lag_is_active(ldev);
if (!lag_active)
goto unlock;
shared_fdb = test_bit(MLX5_LAG_MODE_FLAG_SHARED_FDB, &ldev->mode_flags);
fdb_sel_mode_native = test_bit(MLX5_LAG_MODE_FLAG_FDB_SEL_MODE_NATIVE,
&ldev->mode_flags);
unlock:
mutex_unlock(&ldev->lock);
if (!lag_active)
return -EINVAL;
seq_printf(file, "%s:%s\n", "shared_fdb", shared_fdb ? "on" : "off");
seq_printf(file, "%s:%s\n", "fdb_selection_mode",
fdb_sel_mode_native ? "native" : "affinity");
return 0;
}
static int mapping_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
u8 ports[MLX5_MAX_PORTS] = {};
struct mlx5_lag *ldev;
bool hash = false;
bool lag_active;
int num_ports;
int i;
ldev = dev->priv.lag;
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,
&num_ports);
hash = true;
} else {
for (i = 0; i < ldev->ports; i++)
ports[i] = ldev->v2p_map[i];
num_ports = ldev->ports;
}
}
mutex_unlock(&ldev->lock);
if (!lag_active)
return -EINVAL;
for (i = 0; i < num_ports; i++) {
if (hash)
seq_printf(file, "%d\n", ports[i] + 1);
else
seq_printf(file, "%d:%d\n", i + 1, ports[i]);
}
return 0;
}
static int members_show(struct seq_file *file, void *priv)
{
struct mlx5_core_dev *dev = file->private;
struct mlx5_lag *ldev;
int i;
ldev = dev->priv.lag;
mutex_lock(&ldev->lock);
for (i = 0; i < ldev->ports; i++) {
if (!ldev->pf[i].dev)
continue;
seq_printf(file, "%s\n", dev_name(ldev->pf[i].dev->device));
}
mutex_unlock(&ldev->lock);
return 0;
}
DEFINE_SHOW_ATTRIBUTE(type);
DEFINE_SHOW_ATTRIBUTE(port_sel_mode);
DEFINE_SHOW_ATTRIBUTE(state);
DEFINE_SHOW_ATTRIBUTE(flags);
DEFINE_SHOW_ATTRIBUTE(mapping);
DEFINE_SHOW_ATTRIBUTE(members);
void mlx5_ldev_add_debugfs(struct mlx5_core_dev *dev)
{
struct dentry *dbg;
dbg = debugfs_create_dir("lag", mlx5_debugfs_get_dev_root(dev));
dev->priv.dbg.lag_debugfs = dbg;
debugfs_create_file("type", 0444, dbg, dev, &type_fops);
debugfs_create_file("port_sel_mode", 0444, dbg, dev, &port_sel_mode_fops);
debugfs_create_file("state", 0444, dbg, dev, &state_fops);
debugfs_create_file("flags", 0444, dbg, dev, &flags_fops);
debugfs_create_file("mapping", 0444, dbg, dev, &mapping_fops);
debugfs_create_file("members", 0444, dbg, dev, &members_fops);
}
void mlx5_ldev_remove_debugfs(struct dentry *dbg)
{
debugfs_remove_recursive(dbg);
}
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