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mlxsw: spectrum: Extract a helper for trap registration

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On Spectrum-1, timestamps for PTP packets are delivered through queues
of ingress and egress timestamps. There are two event traps
corresponding to activity on each of those queues. This mechanism is
absent on Spectrum-2, and therefore the traps should only be registered
on Spectrum-1.

Extract out of mlxsw_sp_traps_init() a generic helper,
mlxsw_sp_traps_register(), and likewise with _unregister(). The new helpers
will later be called with Spectrum-1-specific traps.

Signed-off-by: Petr Machata <petrm@mellanox.com>
Acked-by: Jiri Pirko <jiri@mellanox.com>
Signed-off-by: Ido Schimmel <idosch@mellanox.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Petr Machata 2019-06-30 09:04:49 +03:00 committed by David S. Miller
parent 41ce78b92e
commit 4b6b91ed2d
1 changed files with 33 additions and 15 deletions
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48
drivers/net/ethernet/mellanox/mlxsw/spectrum.c
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@ -4251,22 +4251,16 @@ static int mlxsw_sp_trap_groups_set(struct mlxsw_core *mlxsw_core)
return 0;
}
static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
static int mlxsw_sp_traps_register(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_listener listeners[],
size_t listeners_count)
{
int i;
int err;
err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core);
if (err)
return err;
err = mlxsw_sp_trap_groups_set(mlxsw_sp->core);
if (err)
return err;
for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) {
for (i = 0; i < listeners_count; i++) {
err = mlxsw_core_trap_register(mlxsw_sp->core,
&mlxsw_sp_listener[i],
&listeners[i],
mlxsw_sp);
if (err)
goto err_listener_register;
@ -4277,23 +4271,47 @@ static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
err_listener_register:
for (i--; i >= 0; i--) {
mlxsw_core_trap_unregister(mlxsw_sp->core,
&mlxsw_sp_listener[i],
&listeners[i],
mlxsw_sp);
}
return err;
}
static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
static void mlxsw_sp_traps_unregister(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_listener listeners[],
size_t listeners_count)
{
int i;
for (i = 0; i < ARRAY_SIZE(mlxsw_sp_listener); i++) {
for (i = 0; i < listeners_count; i++) {
mlxsw_core_trap_unregister(mlxsw_sp->core,
&mlxsw_sp_listener[i],
&listeners[i],
mlxsw_sp);
}
}
static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
int err;
err = mlxsw_sp_cpu_policers_set(mlxsw_sp->core);
if (err)
return err;
err = mlxsw_sp_trap_groups_set(mlxsw_sp->core);
if (err)
return err;
return mlxsw_sp_traps_register(mlxsw_sp, mlxsw_sp_listener,
ARRAY_SIZE(mlxsw_sp_listener));
}
static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
{
mlxsw_sp_traps_unregister(mlxsw_sp, mlxsw_sp_listener,
ARRAY_SIZE(mlxsw_sp_listener));
}
#define MLXSW_SP_LAG_SEED_INIT 0xcafecafe
static int mlxsw_sp_lag_init(struct mlxsw_sp *mlxsw_sp)