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mlxsw: spectrum_buffers: Split business logic from mlxsw_sp_port_sb_pms_init()

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The function is used to set the per-port shared buffer quotas.
Currently, these quotas are only set for front panel ports, but a
subsequent patch will configure these quotas for the CPU port as well.

The configuration required for the CPU port is a bit different than that
of the front panel ports, so split the business logic into a separate
function which will be called with different parameters for the CPU
port.

No functional changes intended.

Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Reviewed-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Ido Schimmel 2019-04-22 12:08:54 +00:00 committed by David S. Miller
parent 50b5b90514
commit 24a7cc1ef6
1 changed files with 14 additions and 7 deletions
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21
drivers/net/ethernet/mellanox/mlxsw/spectrum_buffers.c
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@ -729,14 +729,13 @@ static const struct mlxsw_sp_sb_pm mlxsw_sp2_sb_pms[] = {
MLXSW_SP_SB_PM(0, MLXSW_REG_SBXX_DYN_MAX_BUFF_MIN),
};
static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
static int mlxsw_sp_sb_pms_init(struct mlxsw_sp *mlxsw_sp, u8 local_port,
const struct mlxsw_sp_sb_pm *pms)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
int i;
int err;
int i, err;
for (i = 0; i < mlxsw_sp->sb_vals->pool_count; i++) {
const struct mlxsw_sp_sb_pm *pm = &mlxsw_sp->sb_vals->pms[i];
const struct mlxsw_sp_sb_pm *pm = &pms[i];
u32 max_buff;
u32 min_buff;
@ -744,14 +743,22 @@ static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
max_buff = pm->max_buff;
if (mlxsw_sp_sb_pool_is_static(mlxsw_sp, i))
max_buff = mlxsw_sp_bytes_cells(mlxsw_sp, max_buff);
err = mlxsw_sp_sb_pm_write(mlxsw_sp, mlxsw_sp_port->local_port,
i, min_buff, max_buff);
err = mlxsw_sp_sb_pm_write(mlxsw_sp, local_port, i, min_buff,
max_buff);
if (err)
return err;
}
return 0;
}
static int mlxsw_sp_port_sb_pms_init(struct mlxsw_sp_port *mlxsw_sp_port)
{
struct mlxsw_sp *mlxsw_sp = mlxsw_sp_port->mlxsw_sp;
return mlxsw_sp_sb_pms_init(mlxsw_sp, mlxsw_sp_port->local_port,
mlxsw_sp->sb_vals->pms);
}
#define MLXSW_SP_SB_MM(_min_buff, _max_buff) \
{ \
.min_buff = _min_buff, \