AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2025-01-19 07:36:37 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

nfp: flower: add infastructure for non-repr priv data

Browse Source 
NFP repr netdevs contain private data that can store per port information.
In certain cases, the NFP driver offloads information from non-repr ports
(e.g. tunnel ports). As the driver does not have control over non-repr
netdevs, it cannot add/track private data directly to the netdev struct.

Add infastructure to store private information on any non-repr netdev that
is offloaded at a given time. This is used in a following patch to track
offloaded MAC addresses for non-reprs and enable correct house keeping on
address changes.

Signed-off-by: John Hurley <john.hurley@netronome.com>
Reviewed-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
John Hurley 2019-01-15 19:06:57 -08:00 committed by David S. Miller
parent 49402b0b7f
commit 05d2bee6bd
2 changed files with 88 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

66
drivers/net/ethernet/netronome/nfp/flower/main.c
View File

@ -32,6 +32,71 @@ static enum devlink_eswitch_mode eswitch_mode_get(struct nfp_app *app)
return DEVLINK_ESWITCH_MODE_SWITCHDEV;
}
static struct nfp_flower_non_repr_priv *
nfp_flower_non_repr_priv_lookup(struct nfp_app *app, struct net_device *netdev)
{
struct nfp_flower_priv *priv = app->priv;
struct nfp_flower_non_repr_priv *entry;
ASSERT_RTNL();
list_for_each_entry(entry, &priv->non_repr_priv, list)
if (entry->netdev == netdev)
return entry;
return NULL;
}
void
__nfp_flower_non_repr_priv_get(struct nfp_flower_non_repr_priv *non_repr_priv)
{
non_repr_priv->ref_count++;
}
struct nfp_flower_non_repr_priv *
nfp_flower_non_repr_priv_get(struct nfp_app *app, struct net_device *netdev)
{
struct nfp_flower_priv *priv = app->priv;
struct nfp_flower_non_repr_priv *entry;
entry = nfp_flower_non_repr_priv_lookup(app, netdev);
if (entry)
goto inc_ref;
entry = kzalloc(sizeof(*entry), GFP_KERNEL);
if (!entry)
return NULL;
entry->netdev = netdev;
list_add(&entry->list, &priv->non_repr_priv);
inc_ref:
__nfp_flower_non_repr_priv_get(entry);
return entry;
}
void
__nfp_flower_non_repr_priv_put(struct nfp_flower_non_repr_priv *non_repr_priv)
{
if (--non_repr_priv->ref_count)
return;
list_del(&non_repr_priv->list);
kfree(non_repr_priv);
}
void
nfp_flower_non_repr_priv_put(struct nfp_app *app, struct net_device *netdev)
{
struct nfp_flower_non_repr_priv *entry;
entry = nfp_flower_non_repr_priv_lookup(app, netdev);
if (!entry)
return;
__nfp_flower_non_repr_priv_put(entry);
}
static enum nfp_repr_type
nfp_flower_repr_get_type_and_port(struct nfp_app *app, u32 port_id, u8 *port)
{
@ -575,6 +640,7 @@ static int nfp_flower_init(struct nfp_app *app)
}
INIT_LIST_HEAD(&app_priv->indr_block_cb_priv);
INIT_LIST_HEAD(&app_priv->non_repr_priv);
return 0;

22
drivers/net/ethernet/netronome/nfp/flower/main.h
View File

@ -145,6 +145,7 @@ struct nfp_fl_lag {
* @mtu_conf: Configuration of repr MTU value
* @nfp_lag: Link aggregation data block
* @indr_block_cb_priv: List of priv data passed to indirect block cbs
* @non_repr_priv: List of offloaded non-repr ports and their priv data
* @active_mem_unit: Current active memory unit for flower rules
* @total_mem_units: Total number of available memory units for flower rules
*/
@ -170,6 +171,7 @@ struct nfp_flower_priv {
struct nfp_mtu_conf mtu_conf;
struct nfp_fl_lag nfp_lag;
struct list_head indr_block_cb_priv;
struct list_head non_repr_priv;
unsigned int active_mem_unit;
unsigned int total_mem_units;
};
@ -182,6 +184,18 @@ struct nfp_flower_repr_priv {
unsigned long lag_port_flags;
};
/**
* struct nfp_flower_non_repr_priv - Priv data for non-repr offloaded ports
* @list: List entry of offloaded reprs
* @netdev: Pointer to non-repr net_device
* @ref_count: Number of references held for this priv data
*/
struct nfp_flower_non_repr_priv {
struct list_head list;
struct net_device *netdev;
int ref_count;
};
struct nfp_fl_key_ls {
u32 key_layer_two;
u8 key_layer;
@ -282,4 +296,12 @@ int nfp_flower_reg_indir_block_handler(struct nfp_app *app,
struct net_device *netdev,
unsigned long event);
void
__nfp_flower_non_repr_priv_get(struct nfp_flower_non_repr_priv *non_repr_priv);
struct nfp_flower_non_repr_priv *
nfp_flower_non_repr_priv_get(struct nfp_app *app, struct net_device *netdev);
void
__nfp_flower_non_repr_priv_put(struct nfp_flower_non_repr_priv *non_repr_priv);
void
nfp_flower_non_repr_priv_put(struct nfp_app *app, struct net_device *netdev);
#endif