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// SPDX-License-Identifier: GPL-2.0-or-later
/*
* DSA devlink handling
*/
#include <net/dsa.h>
#include <net/devlink.h>
#include "devlink.h"
static int dsa_devlink_info_get(struct devlink *dl,
struct devlink_info_req *req,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (ds->ops->devlink_info_get)
return ds->ops->devlink_info_get(ds, req, extack);
return -EOPNOTSUPP;
}
static int dsa_devlink_sb_pool_get(struct devlink *dl,
unsigned int sb_index, u16 pool_index,
struct devlink_sb_pool_info *pool_info)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_sb_pool_get)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_pool_get(ds, sb_index, pool_index,
pool_info);
}
static int dsa_devlink_sb_pool_set(struct devlink *dl, unsigned int sb_index,
u16 pool_index, u32 size,
enum devlink_sb_threshold_type threshold_type,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_sb_pool_set)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_pool_set(ds, sb_index, pool_index, size,
threshold_type, extack);
}
static int dsa_devlink_sb_port_pool_get(struct devlink_port *dlp,
unsigned int sb_index, u16 pool_index,
u32 *p_threshold)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_port_pool_get)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_port_pool_get(ds, port, sb_index,
pool_index, p_threshold);
}
static int dsa_devlink_sb_port_pool_set(struct devlink_port *dlp,
unsigned int sb_index, u16 pool_index,
u32 threshold,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_port_pool_set)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_port_pool_set(ds, port, sb_index,
pool_index, threshold, extack);
}
static int
dsa_devlink_sb_tc_pool_bind_get(struct devlink_port *dlp,
unsigned int sb_index, u16 tc_index,
enum devlink_sb_pool_type pool_type,
u16 *p_pool_index, u32 *p_threshold)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_tc_pool_bind_get)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_tc_pool_bind_get(ds, port, sb_index,
tc_index, pool_type,
p_pool_index, p_threshold);
}
static int
dsa_devlink_sb_tc_pool_bind_set(struct devlink_port *dlp,
unsigned int sb_index, u16 tc_index,
enum devlink_sb_pool_type pool_type,
u16 pool_index, u32 threshold,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_tc_pool_bind_set)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_tc_pool_bind_set(ds, port, sb_index,
tc_index, pool_type,
pool_index, threshold,
extack);
}
static int dsa_devlink_sb_occ_snapshot(struct devlink *dl,
unsigned int sb_index)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_sb_occ_snapshot)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_occ_snapshot(ds, sb_index);
}
static int dsa_devlink_sb_occ_max_clear(struct devlink *dl,
unsigned int sb_index)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_sb_occ_max_clear)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_occ_max_clear(ds, sb_index);
}
static int dsa_devlink_sb_occ_port_pool_get(struct devlink_port *dlp,
unsigned int sb_index,
u16 pool_index, u32 *p_cur,
u32 *p_max)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_occ_port_pool_get)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_occ_port_pool_get(ds, port, sb_index,
pool_index, p_cur, p_max);
}
static int
dsa_devlink_sb_occ_tc_port_bind_get(struct devlink_port *dlp,
unsigned int sb_index, u16 tc_index,
enum devlink_sb_pool_type pool_type,
u32 *p_cur, u32 *p_max)
{
struct dsa_switch *ds = dsa_devlink_port_to_ds(dlp);
int port = dsa_devlink_port_to_port(dlp);
if (!ds->ops->devlink_sb_occ_tc_port_bind_get)
return -EOPNOTSUPP;
return ds->ops->devlink_sb_occ_tc_port_bind_get(ds, port,
sb_index, tc_index,
pool_type, p_cur,
p_max);
}
static const struct devlink_ops dsa_devlink_ops = {
.info_get = dsa_devlink_info_get,
.sb_pool_get = dsa_devlink_sb_pool_get,
.sb_pool_set = dsa_devlink_sb_pool_set,
.sb_port_pool_get = dsa_devlink_sb_port_pool_get,
.sb_port_pool_set = dsa_devlink_sb_port_pool_set,
.sb_tc_pool_bind_get = dsa_devlink_sb_tc_pool_bind_get,
.sb_tc_pool_bind_set = dsa_devlink_sb_tc_pool_bind_set,
.sb_occ_snapshot = dsa_devlink_sb_occ_snapshot,
.sb_occ_max_clear = dsa_devlink_sb_occ_max_clear,
.sb_occ_port_pool_get = dsa_devlink_sb_occ_port_pool_get,
.sb_occ_tc_port_bind_get = dsa_devlink_sb_occ_tc_port_bind_get,
};
int dsa_devlink_param_get(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_param_get)
return -EOPNOTSUPP;
return ds->ops->devlink_param_get(ds, id, ctx);
}
EXPORT_SYMBOL_GPL(dsa_devlink_param_get);
int dsa_devlink_param_set(struct devlink *dl, u32 id,
struct devlink_param_gset_ctx *ctx,
struct netlink_ext_ack *extack)
{
struct dsa_switch *ds = dsa_devlink_to_ds(dl);
if (!ds->ops->devlink_param_set)
return -EOPNOTSUPP;
return ds->ops->devlink_param_set(ds, id, ctx);
}
EXPORT_SYMBOL_GPL(dsa_devlink_param_set);
int dsa_devlink_params_register(struct dsa_switch *ds,
const struct devlink_param *params,
size_t params_count)
{
return devlink_params_register(ds->devlink, params, params_count);
}
EXPORT_SYMBOL_GPL(dsa_devlink_params_register);
void dsa_devlink_params_unregister(struct dsa_switch *ds,
const struct devlink_param *params,
size_t params_count)
{
devlink_params_unregister(ds->devlink, params, params_count);
}
EXPORT_SYMBOL_GPL(dsa_devlink_params_unregister);
int dsa_devlink_resource_register(struct dsa_switch *ds,
const char *resource_name,
u64 resource_size,
u64 resource_id,
u64 parent_resource_id,
const struct devlink_resource_size_params *size_params)
{
return devlink_resource_register(ds->devlink, resource_name,
resource_size, resource_id,
parent_resource_id,
size_params);
}
EXPORT_SYMBOL_GPL(dsa_devlink_resource_register);
void dsa_devlink_resources_unregister(struct dsa_switch *ds)
{
devlink_resources_unregister(ds->devlink);
}
EXPORT_SYMBOL_GPL(dsa_devlink_resources_unregister);
void dsa_devlink_resource_occ_get_register(struct dsa_switch *ds,
u64 resource_id,
devlink_resource_occ_get_t *occ_get,
void *occ_get_priv)
{
return devlink_resource_occ_get_register(ds->devlink, resource_id,
occ_get, occ_get_priv);
}
EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_register);
void dsa_devlink_resource_occ_get_unregister(struct dsa_switch *ds,
u64 resource_id)
{
devlink_resource_occ_get_unregister(ds->devlink, resource_id);
}
EXPORT_SYMBOL_GPL(dsa_devlink_resource_occ_get_unregister);
struct devlink_region *
dsa_devlink_region_create(struct dsa_switch *ds,
const struct devlink_region_ops *ops,
u32 region_max_snapshots, u64 region_size)
{
return devlink_region_create(ds->devlink, ops, region_max_snapshots,
region_size);
}
EXPORT_SYMBOL_GPL(dsa_devlink_region_create);
struct devlink_region *
dsa_devlink_port_region_create(struct dsa_switch *ds,
int port,
const struct devlink_port_region_ops *ops,
u32 region_max_snapshots, u64 region_size)
{
struct dsa_port *dp = dsa_to_port(ds, port);
return devlink_port_region_create(&dp->devlink_port, ops,
region_max_snapshots,
region_size);
}
EXPORT_SYMBOL_GPL(dsa_devlink_port_region_create);
void dsa_devlink_region_destroy(struct devlink_region *region)
{
devlink_region_destroy(region);
}
EXPORT_SYMBOL_GPL(dsa_devlink_region_destroy);
int dsa_port_devlink_setup(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
struct dsa_switch_tree *dst = dp->ds->dst;
struct devlink_port_attrs attrs = {};
struct devlink *dl = dp->ds->devlink;
struct dsa_switch *ds = dp->ds;
const unsigned char *id;
unsigned char len;
int err;
memset(dlp, 0, sizeof(*dlp));
devlink_port_init(dl, dlp);
if (ds->ops->port_setup) {
err = ds->ops->port_setup(ds, dp->index);
if (err)
return err;
}
id = (const unsigned char *)&dst->index;
len = sizeof(dst->index);
attrs.phys.port_number = dp->index;
memcpy(attrs.switch_id.id, id, len);
attrs.switch_id.id_len = len;
switch (dp->type) {
case DSA_PORT_TYPE_UNUSED:
attrs.flavour = DEVLINK_PORT_FLAVOUR_UNUSED;
break;
case DSA_PORT_TYPE_CPU:
attrs.flavour = DEVLINK_PORT_FLAVOUR_CPU;
break;
case DSA_PORT_TYPE_DSA:
attrs.flavour = DEVLINK_PORT_FLAVOUR_DSA;
break;
case DSA_PORT_TYPE_USER:
attrs.flavour = DEVLINK_PORT_FLAVOUR_PHYSICAL;
break;
}
devlink_port_attrs_set(dlp, &attrs);
err = devlink_port_register(dl, dlp, dp->index);
if (err) {
if (ds->ops->port_teardown)
ds->ops->port_teardown(ds, dp->index);
return err;
}
return 0;
}
void dsa_port_devlink_teardown(struct dsa_port *dp)
{
struct devlink_port *dlp = &dp->devlink_port;
struct dsa_switch *ds = dp->ds;
devlink_port_unregister(dlp);
if (ds->ops->port_teardown)
ds->ops->port_teardown(ds, dp->index);
devlink_port_fini(dlp);
}
void dsa_switch_devlink_register(struct dsa_switch *ds)
{
devlink_register(ds->devlink);
}
void dsa_switch_devlink_unregister(struct dsa_switch *ds)
{
devlink_unregister(ds->devlink);
}
int dsa_switch_devlink_alloc(struct dsa_switch *ds)
{
struct dsa_devlink_priv *dl_priv;
struct devlink *dl;
/* Add the switch to devlink before calling setup, so that setup can
* add dpipe tables
*/
dl = devlink_alloc(&dsa_devlink_ops, sizeof(*dl_priv), ds->dev);
if (!dl)
return -ENOMEM;
ds->devlink = dl;
dl_priv = devlink_priv(ds->devlink);
dl_priv->ds = ds;
return 0;
}
void dsa_switch_devlink_free(struct dsa_switch *ds)
{
devlink_free(ds->devlink);
ds->devlink = NULL;
}
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