AuxXxilium/linux_dsm_epyc7002
1
0
Fork 0
mirror of https://github.com/AuxXxilium/linux_dsm_epyc7002.git synced 2024-12-28 11:18:45 +07:00
Code Issues Actions Packages Projects Releases Wiki Activity

mlxsw: spectrum_kvdl: Cosmetic kvdl allocator API change

Browse Source 
Currently the return allocated index and err value are multiplexed.
This patch changes the API to decouple the ret value from the allocated
index.

Signed-off-by: Arkadi Sharshevsky <arkadis@mellanox.com>
Reviewed-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Arkadi Sharshevsky 2017-03-25 08:28:22 +01:00 committed by David S. Miller
parent 2239cc6343
commit 1312444374
4 changed files with 15 additions and 17 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

3
drivers/net/ethernet/mellanox/mlxsw/spectrum.h
View File

@ -583,7 +583,8 @@ int mlxsw_sp_bridge_vrf_join(struct mlxsw_sp *mlxsw_sp,
void mlxsw_sp_bridge_vrf_leave(struct mlxsw_sp *mlxsw_sp,
struct net_device *l3_dev);
int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count);
int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count,
u32 *p_entry_index);
void mlxsw_sp_kvdl_free(struct mlxsw_sp *mlxsw_sp, int entry_index);
struct mlxsw_afk *mlxsw_sp_acl_afk(struct mlxsw_sp_acl *acl);

17
drivers/net/ethernet/mellanox/mlxsw/spectrum_acl.c
View File

@ -595,7 +595,6 @@ static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
struct mlxsw_sp *mlxsw_sp = priv;
char pefa_pl[MLXSW_REG_PEFA_LEN];
u32 kvdl_index;
int ret;
int err;
/* The first action set of a TCAM entry is stored directly in TCAM,
@ -604,10 +603,10 @@ static int mlxsw_sp_act_kvdl_set_add(void *priv, u32 *p_kvdl_index,
if (is_first)
return 0;
ret = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KDVL_ACT_EXT_SIZE);
if (ret < 0)
return ret;
kvdl_index = ret;
err = mlxsw_sp_kvdl_alloc(mlxsw_sp, MLXSW_SP_KDVL_ACT_EXT_SIZE,
&kvdl_index);
if (err)
return err;
mlxsw_reg_pefa_pack(pefa_pl, kvdl_index, enc_actions);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(pefa), pefa_pl);
if (err)
@ -636,13 +635,11 @@ static int mlxsw_sp_act_kvdl_fwd_entry_add(void *priv, u32 *p_kvdl_index,
struct mlxsw_sp *mlxsw_sp = priv;
char ppbs_pl[MLXSW_REG_PPBS_LEN];
u32 kvdl_index;
int ret;
int err;
ret = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1);
if (ret < 0)
return ret;
kvdl_index = ret;
err = mlxsw_sp_kvdl_alloc(mlxsw_sp, 1, &kvdl_index);
if (err)
return err;
mlxsw_reg_ppbs_pack(ppbs_pl, kvdl_index, local_port);
err = mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(ppbs), ppbs_pl);
if (err)

6
drivers/net/ethernet/mellanox/mlxsw/spectrum_kvdl.c
View File

@ -45,7 +45,8 @@
(MLXSW_SP_KVD_LINEAR_SIZE - MLXSW_SP_KVDL_CHUNKS_BASE)
#define MLXSW_SP_CHUNK_MAX 32
int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count)
int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count,
u32 *p_entry_index)
{
int entry_index;
int size;
@ -72,7 +73,8 @@ int mlxsw_sp_kvdl_alloc(struct mlxsw_sp *mlxsw_sp, unsigned int entry_count)
for (i = 0; i < type_entries; i++)
set_bit(entry_index + i, mlxsw_sp->kvdl.usage);
return entry_index;
*p_entry_index = entry_index;
return 0;
}
return -ENOBUFS;
}

6
drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
View File

@ -1274,7 +1274,6 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
bool old_adj_index_valid;
u32 old_adj_index;
u16 old_ecmp_size;
int ret;
int i;
int err;
@ -1312,15 +1311,14 @@ mlxsw_sp_nexthop_group_refresh(struct mlxsw_sp *mlxsw_sp,
*/
goto set_trap;
ret = mlxsw_sp_kvdl_alloc(mlxsw_sp, ecmp_size);
if (ret < 0) {
err = mlxsw_sp_kvdl_alloc(mlxsw_sp, ecmp_size, &adj_index);
if (err) {
/* We ran out of KVD linear space, just set the
* trap and let everything flow through kernel.
*/
dev_warn(mlxsw_sp->bus_info->dev, "Failed to allocate KVD linear area for nexthop group.\n");
goto set_trap;
}
adj_index = ret;
old_adj_index_valid = nh_grp->adj_index_valid;
old_adj_index = nh_grp->adj_index;
old_ecmp_size = nh_grp->ecmp_size;