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mlxsw: spectrum_router: Support FID-less RIFs
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Loopback RIFs, which will be introduced in a follow-up patch, differ
from other RIFs in that they do not have a FID associated with them.

To support this, demote FID allocation from mlxsw_sp_rif_create to
configure op of the existing RIF types, and likewise the FID release
from mlxsw_sp_rif_destroy to deconfigure op.

Signed-off-by: Petr Machata <petrm@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>
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Petr Machata authored and David S. Miller committed Sep 4, 2017
1 parent 38ebc0f commit 010cadf
Showing 1 changed file with 63 additions and 22 deletions.
85 changes: 63 additions & 22 deletions drivers/net/ethernet/mellanox/mlxsw/spectrum_router.c
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Original file line number Diff line number Diff line change
Expand Up @@ -4444,9 +4444,9 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
{
u32 tb_id = l3mdev_fib_table(params->dev);
const struct mlxsw_sp_rif_ops *ops;
struct mlxsw_sp_fid *fid = NULL;
enum mlxsw_sp_rif_type type;
struct mlxsw_sp_rif *rif;
struct mlxsw_sp_fid *fid;
struct mlxsw_sp_vr *vr;
u16 rif_index;
int err;
Expand All @@ -4470,12 +4470,14 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
rif->mlxsw_sp = mlxsw_sp;
rif->ops = ops;

fid = ops->fid_get(rif);
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
goto err_fid_get;
if (ops->fid_get) {
fid = ops->fid_get(rif);
if (IS_ERR(fid)) {
err = PTR_ERR(fid);
goto err_fid_get;
}
rif->fid = fid;
}
rif->fid = fid;

if (ops->setup)
ops->setup(rif, params);
Expand All @@ -4484,22 +4486,15 @@ mlxsw_sp_rif_create(struct mlxsw_sp *mlxsw_sp,
if (err)
goto err_configure;

err = mlxsw_sp_rif_fdb_op(mlxsw_sp, params->dev->dev_addr,
mlxsw_sp_fid_index(fid), true);
if (err)
goto err_rif_fdb_op;

mlxsw_sp_rif_counters_alloc(rif);
mlxsw_sp_fid_rif_set(fid, rif);
mlxsw_sp->router->rifs[rif_index] = rif;
vr->rif_count++;

return rif;

err_rif_fdb_op:
ops->deconfigure(rif);
err_configure:
mlxsw_sp_fid_put(fid);
if (fid)
mlxsw_sp_fid_put(fid);
err_fid_get:
kfree(rif);
err_rif_alloc:
Expand All @@ -4520,12 +4515,11 @@ void mlxsw_sp_rif_destroy(struct mlxsw_sp_rif *rif)

vr->rif_count--;
mlxsw_sp->router->rifs[rif->rif_index] = NULL;
mlxsw_sp_fid_rif_set(fid, NULL);
mlxsw_sp_rif_counters_free(rif);
mlxsw_sp_rif_fdb_op(mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(fid), false);
ops->deconfigure(rif);
mlxsw_sp_fid_put(fid);
if (fid)
/* Loopback RIFs are not associated with a FID. */
mlxsw_sp_fid_put(fid);
kfree(rif);
mlxsw_sp_vr_put(vr);
}
Expand Down Expand Up @@ -4965,11 +4959,32 @@ static int mlxsw_sp_rif_subport_op(struct mlxsw_sp_rif *rif, bool enable)

static int mlxsw_sp_rif_subport_configure(struct mlxsw_sp_rif *rif)
{
return mlxsw_sp_rif_subport_op(rif, true);
int err;

err = mlxsw_sp_rif_subport_op(rif, true);
if (err)
return err;

err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(rif->fid), true);
if (err)
goto err_rif_fdb_op;

mlxsw_sp_fid_rif_set(rif->fid, rif);
return 0;

err_rif_fdb_op:
mlxsw_sp_rif_subport_op(rif, false);
return err;
}

static void mlxsw_sp_rif_subport_deconfigure(struct mlxsw_sp_rif *rif)
{
struct mlxsw_sp_fid *fid = rif->fid;

mlxsw_sp_fid_rif_set(fid, NULL);
mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(fid), false);
mlxsw_sp_rif_subport_op(rif, false);
}

Expand Down Expand Up @@ -5028,8 +5043,17 @@ static int mlxsw_sp_rif_vlan_configure(struct mlxsw_sp_rif *rif)
if (err)
goto err_fid_bc_flood_set;

err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(rif->fid), true);
if (err)
goto err_rif_fdb_op;

mlxsw_sp_fid_rif_set(rif->fid, rif);
return 0;

err_rif_fdb_op:
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC,
mlxsw_sp_router_port(mlxsw_sp), false);
err_fid_bc_flood_set:
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC,
mlxsw_sp_router_port(mlxsw_sp), false);
Expand All @@ -5040,9 +5064,13 @@ static int mlxsw_sp_rif_vlan_configure(struct mlxsw_sp_rif *rif)

static void mlxsw_sp_rif_vlan_deconfigure(struct mlxsw_sp_rif *rif)
{
struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp;
u16 vid = mlxsw_sp_fid_8021q_vid(rif->fid);
struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp;
struct mlxsw_sp_fid *fid = rif->fid;

mlxsw_sp_fid_rif_set(fid, NULL);
mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(fid), false);
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC,
mlxsw_sp_router_port(mlxsw_sp), false);
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC,
Expand Down Expand Up @@ -5087,8 +5115,17 @@ static int mlxsw_sp_rif_fid_configure(struct mlxsw_sp_rif *rif)
if (err)
goto err_fid_bc_flood_set;

err = mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(rif->fid), true);
if (err)
goto err_rif_fdb_op;

mlxsw_sp_fid_rif_set(rif->fid, rif);
return 0;

err_rif_fdb_op:
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC,
mlxsw_sp_router_port(mlxsw_sp), false);
err_fid_bc_flood_set:
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC,
mlxsw_sp_router_port(mlxsw_sp), false);
Expand All @@ -5099,9 +5136,13 @@ static int mlxsw_sp_rif_fid_configure(struct mlxsw_sp_rif *rif)

static void mlxsw_sp_rif_fid_deconfigure(struct mlxsw_sp_rif *rif)
{
struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp;
u16 fid_index = mlxsw_sp_fid_index(rif->fid);
struct mlxsw_sp *mlxsw_sp = rif->mlxsw_sp;
struct mlxsw_sp_fid *fid = rif->fid;

mlxsw_sp_fid_rif_set(fid, NULL);
mlxsw_sp_rif_fdb_op(rif->mlxsw_sp, rif->dev->dev_addr,
mlxsw_sp_fid_index(fid), false);
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_BC,
mlxsw_sp_router_port(mlxsw_sp), false);
mlxsw_sp_fid_flood_set(rif->fid, MLXSW_SP_FLOOD_TYPE_MC,
Expand Down

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