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Date: Mon, 20 Jun 2016 23:04:09 +0200
From: Jiri Pirko <jiri@...nulli.us>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, idosch@...lanox.com, eladr@...lanox.com,
yotamg@...lanox.com, nogahf@...lanox.com, ogerlitz@...lanox.com
Subject: [patch net-next 11/23] mlxsw: spectrum: Use only one function to create vFIDs
From: Ido Schimmel <idosch@...lanox.com>
Simplify the code and use only one function for vFID creation /
destruction.
Unlike before, the function receives a FID index as its argument and not
a vFID index. Instead of passing 0, now one would need to pass 4K, which
is the first vFID.
This is the first step in creating a generic FID struct that will be
used for all three types of FIDs.
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
Signed-off-by: Jiri Pirko <jiri@...lanox.com>
---
drivers/net/ethernet/mellanox/mlxsw/spectrum.c | 79 ++++++++++++--------------
1 file changed, 37 insertions(+), 42 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 90cf6c5..4f53dd2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -652,68 +652,61 @@ static u16 mlxsw_sp_avail_vfid_get(const struct mlxsw_sp *mlxsw_sp)
MLXSW_SP_VFID_PORT_MAX);
}
-static int __mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp, u16 vfid)
+static int mlxsw_sp_vfid_op(struct mlxsw_sp *mlxsw_sp, u16 fid, bool create)
{
- u16 fid = mlxsw_sp_vfid_to_fid(vfid);
char sfmr_pl[MLXSW_REG_SFMR_LEN];
- mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_CREATE_FID, fid, 0);
+ mlxsw_reg_sfmr_pack(sfmr_pl, !create, fid, 0);
return mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
}
-static void __mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp, u16 vfid)
-{
- u16 fid = mlxsw_sp_vfid_to_fid(vfid);
- char sfmr_pl[MLXSW_REG_SFMR_LEN];
-
- mlxsw_reg_sfmr_pack(sfmr_pl, MLXSW_REG_SFMR_OP_DESTROY_FID, fid, 0);
- mlxsw_reg_write(mlxsw_sp->core, MLXSW_REG(sfmr), sfmr_pl);
-}
-
static struct mlxsw_sp_vfid *mlxsw_sp_vfid_create(struct mlxsw_sp *mlxsw_sp,
u16 vid)
{
struct device *dev = mlxsw_sp->bus_info->dev;
- struct mlxsw_sp_vfid *vfid;
- u16 n_vfid;
+ struct mlxsw_sp_vfid *f;
+ u16 vfid, fid;
int err;
- n_vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
- if (n_vfid == MLXSW_SP_VFID_PORT_MAX) {
+ vfid = mlxsw_sp_avail_vfid_get(mlxsw_sp);
+ if (vfid == MLXSW_SP_VFID_PORT_MAX) {
dev_err(dev, "No available vFIDs\n");
return ERR_PTR(-ERANGE);
}
- err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid);
+ fid = mlxsw_sp_vfid_to_fid(vfid);
+ err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
if (err) {
- dev_err(dev, "Failed to create vFID=%d\n", n_vfid);
+ dev_err(dev, "Failed to create FID=%d\n", fid);
return ERR_PTR(err);
}
- vfid = kzalloc(sizeof(*vfid), GFP_KERNEL);
- if (!vfid)
+ f = kzalloc(sizeof(*f), GFP_KERNEL);
+ if (!f)
goto err_allocate_vfid;
- vfid->vfid = n_vfid;
- vfid->vid = vid;
+ f->vfid = vfid;
+ f->vid = vid;
- list_add(&vfid->list, &mlxsw_sp->port_vfids.list);
- set_bit(n_vfid, mlxsw_sp->port_vfids.mapped);
+ list_add(&f->list, &mlxsw_sp->port_vfids.list);
+ set_bit(vfid, mlxsw_sp->port_vfids.mapped);
- return vfid;
+ return f;
err_allocate_vfid:
- __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid);
+ mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
return ERR_PTR(-ENOMEM);
}
static void mlxsw_sp_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_vfid *vfid)
{
+ u16 fid = mlxsw_sp_vfid_to_fid(vfid->vfid);
+
clear_bit(vfid->vfid, mlxsw_sp->port_vfids.mapped);
list_del(&vfid->list);
- __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid);
+ mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
kfree(vfid);
}
@@ -3164,36 +3157,37 @@ static struct mlxsw_sp_vfid *mlxsw_sp_br_vfid_create(struct mlxsw_sp *mlxsw_sp,
struct net_device *br_dev)
{
struct device *dev = mlxsw_sp->bus_info->dev;
- struct mlxsw_sp_vfid *vfid;
- u16 n_vfid;
+ struct mlxsw_sp_vfid *f;
+ u16 vfid, fid;
int err;
- n_vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp));
- if (n_vfid == MLXSW_SP_VFID_MAX) {
+ vfid = mlxsw_sp_br_vfid_to_vfid(mlxsw_sp_avail_br_vfid_get(mlxsw_sp));
+ if (vfid == MLXSW_SP_VFID_MAX) {
dev_err(dev, "No available vFIDs\n");
return ERR_PTR(-ERANGE);
}
- err = __mlxsw_sp_vfid_create(mlxsw_sp, n_vfid);
+ fid = mlxsw_sp_vfid_to_fid(vfid);
+ err = mlxsw_sp_vfid_op(mlxsw_sp, fid, true);
if (err) {
- dev_err(dev, "Failed to create vFID=%d\n", n_vfid);
+ dev_err(dev, "Failed to create FID=%d\n", fid);
return ERR_PTR(err);
}
- vfid = kzalloc(sizeof(*vfid), GFP_KERNEL);
- if (!vfid)
+ f = kzalloc(sizeof(*f), GFP_KERNEL);
+ if (!f)
goto err_allocate_vfid;
- vfid->vfid = n_vfid;
- vfid->br_dev = br_dev;
+ f->vfid = vfid;
+ f->br_dev = br_dev;
- list_add(&vfid->list, &mlxsw_sp->br_vfids.list);
- set_bit(mlxsw_sp_vfid_to_br_vfid(n_vfid), mlxsw_sp->br_vfids.mapped);
+ list_add(&f->list, &mlxsw_sp->br_vfids.list);
+ set_bit(mlxsw_sp_vfid_to_br_vfid(vfid), mlxsw_sp->br_vfids.mapped);
- return vfid;
+ return f;
err_allocate_vfid:
- __mlxsw_sp_vfid_destroy(mlxsw_sp, n_vfid);
+ mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
return ERR_PTR(-ENOMEM);
}
@@ -3201,11 +3195,12 @@ static void mlxsw_sp_br_vfid_destroy(struct mlxsw_sp *mlxsw_sp,
struct mlxsw_sp_vfid *vfid)
{
u16 br_vfid = mlxsw_sp_vfid_to_br_vfid(vfid->vfid);
+ u16 fid = mlxsw_sp_vfid_to_fid(vfid->vfid);
clear_bit(br_vfid, mlxsw_sp->br_vfids.mapped);
list_del(&vfid->list);
- __mlxsw_sp_vfid_destroy(mlxsw_sp, vfid->vfid);
+ mlxsw_sp_vfid_op(mlxsw_sp, fid, false);
kfree(vfid);
}
--
2.5.5
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