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Date: Mon, 3 Aug 2020 19:11:37 +0300
From: Ido Schimmel <idosch@...sch.org>
To: netdev@...r.kernel.org
Cc: davem@...emloft.net, kuba@...nel.org, jiri@...lanox.com,
petrm@...lanox.com, amitc@...lanox.com, mlxsw@...lanox.com,
Ido Schimmel <idosch@...lanox.com>
Subject: [PATCH net-next 5/9] mlxsw: spectrum_trap: Allow for per-ASIC trap groups initialization
From: Ido Schimmel <idosch@...lanox.com>
Subsequent patches will need to register different trap groups for
Spectrum-1 and Spectrum-2 onwards.
Enable that by invoking a per-ASIC operation during trap groups
initialization.
Reviewed-by: Petr Machata <petrm@...lanox.com>
Reviewed-by: Jiri Pirko <jiri@...lanox.com>
Signed-off-by: Petr Machata <petrm@...lanox.com>
Signed-off-by: Ido Schimmel <idosch@...lanox.com>
---
.../net/ethernet/mellanox/mlxsw/spectrum.c | 3 +
.../net/ethernet/mellanox/mlxsw/spectrum.h | 1 +
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 89 +++++++++++++++++--
.../ethernet/mellanox/mlxsw/spectrum_trap.h | 9 ++
4 files changed, 93 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
index 519eb44e4097..fdf9aa8314b2 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.c
@@ -3055,6 +3055,7 @@ static int mlxsw_sp1_init(struct mlxsw_core *mlxsw_core,
mlxsw_sp->ptp_ops = &mlxsw_sp1_ptp_ops;
mlxsw_sp->span_ops = &mlxsw_sp1_span_ops;
mlxsw_sp->policer_core_ops = &mlxsw_sp1_policer_core_ops;
+ mlxsw_sp->trap_ops = &mlxsw_sp1_trap_ops;
mlxsw_sp->listeners = mlxsw_sp1_listener;
mlxsw_sp->listeners_count = ARRAY_SIZE(mlxsw_sp1_listener);
mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP1;
@@ -3084,6 +3085,7 @@ static int mlxsw_sp2_init(struct mlxsw_core *mlxsw_core,
mlxsw_sp->ptp_ops = &mlxsw_sp2_ptp_ops;
mlxsw_sp->span_ops = &mlxsw_sp2_span_ops;
mlxsw_sp->policer_core_ops = &mlxsw_sp2_policer_core_ops;
+ mlxsw_sp->trap_ops = &mlxsw_sp2_trap_ops;
mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP2;
return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info, extack);
@@ -3111,6 +3113,7 @@ static int mlxsw_sp3_init(struct mlxsw_core *mlxsw_core,
mlxsw_sp->ptp_ops = &mlxsw_sp2_ptp_ops;
mlxsw_sp->span_ops = &mlxsw_sp3_span_ops;
mlxsw_sp->policer_core_ops = &mlxsw_sp2_policer_core_ops;
+ mlxsw_sp->trap_ops = &mlxsw_sp2_trap_ops;
mlxsw_sp->lowest_shaper_bs = MLXSW_REG_QEEC_LOWEST_SHAPER_BS_SP3;
return mlxsw_sp_init(mlxsw_core, mlxsw_bus_info, extack);
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
index 866a1193f12b..b808f6b4d670 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum.h
@@ -177,6 +177,7 @@ struct mlxsw_sp {
const struct mlxsw_sp_ptp_ops *ptp_ops;
const struct mlxsw_sp_span_ops *span_ops;
const struct mlxsw_sp_policer_core_ops *policer_core_ops;
+ const struct mlxsw_sp_trap_ops *trap_ops;
const struct mlxsw_listener *listeners;
size_t listeners_count;
u32 lowest_shaper_bs;
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 47bc11a861cc..3726be5c02b4 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -1159,6 +1159,43 @@ static void mlxsw_sp_trap_policers_fini(struct mlxsw_sp *mlxsw_sp)
mlxsw_sp_trap_policer_items_arr_fini(mlxsw_sp);
}
+static int mlxsw_sp_trap_group_items_arr_init(struct mlxsw_sp *mlxsw_sp)
+{
+ size_t common_groups_count = ARRAY_SIZE(mlxsw_sp_trap_group_items_arr);
+ const struct mlxsw_sp_trap_group_item *spec_group_items_arr;
+ size_t elem_size = sizeof(struct mlxsw_sp_trap_group_item);
+ struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
+ size_t groups_count, spec_groups_count;
+ int err;
+
+ err = mlxsw_sp->trap_ops->groups_init(mlxsw_sp, &spec_group_items_arr,
+ &spec_groups_count);
+ if (err)
+ return err;
+
+ /* The group items array is created by concatenating the common trap
+ * group items and the ASIC-specific trap group items.
+ */
+ groups_count = common_groups_count + spec_groups_count;
+ trap->group_items_arr = kcalloc(groups_count, elem_size, GFP_KERNEL);
+ if (!trap->group_items_arr)
+ return -ENOMEM;
+
+ memcpy(trap->group_items_arr, mlxsw_sp_trap_group_items_arr,
+ elem_size * common_groups_count);
+ memcpy(trap->group_items_arr + common_groups_count,
+ spec_group_items_arr, elem_size * spec_groups_count);
+
+ trap->groups_count = groups_count;
+
+ return 0;
+}
+
+static void mlxsw_sp_trap_group_items_arr_fini(struct mlxsw_sp *mlxsw_sp)
+{
+ kfree(mlxsw_sp->trap->group_items_arr);
+}
+
static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp)
{
struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
@@ -1166,13 +1203,9 @@ static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp)
struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
int err, i;
- trap->group_items_arr = kmemdup(mlxsw_sp_trap_group_items_arr,
- sizeof(mlxsw_sp_trap_group_items_arr),
- GFP_KERNEL);
- if (!trap->group_items_arr)
- return -ENOMEM;
-
- trap->groups_count = ARRAY_SIZE(mlxsw_sp_trap_group_items_arr);
+ err = mlxsw_sp_trap_group_items_arr_init(mlxsw_sp);
+ if (err)
+ return err;
for (i = 0; i < trap->groups_count; i++) {
group_item = &trap->group_items_arr[i];
@@ -1189,7 +1222,7 @@ static int mlxsw_sp_trap_groups_init(struct mlxsw_sp *mlxsw_sp)
group_item = &trap->group_items_arr[i];
devlink_trap_groups_unregister(devlink, &group_item->group, 1);
}
- kfree(trap->group_items_arr);
+ mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp);
return err;
}
@@ -1205,7 +1238,7 @@ static void mlxsw_sp_trap_groups_fini(struct mlxsw_sp *mlxsw_sp)
group_item = &trap->group_items_arr[i];
devlink_trap_groups_unregister(devlink, &group_item->group, 1);
}
- kfree(trap->group_items_arr);
+ mlxsw_sp_trap_group_items_arr_fini(mlxsw_sp);
}
static bool
@@ -1579,3 +1612,41 @@ mlxsw_sp_trap_policer_counter_get(struct mlxsw_core *mlxsw_core,
return 0;
}
+
+static const struct mlxsw_sp_trap_group_item
+mlxsw_sp1_trap_group_items_arr[] = {
+};
+
+static int
+mlxsw_sp1_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_group_item **arr,
+ size_t *p_groups_count)
+{
+ *arr = mlxsw_sp1_trap_group_items_arr;
+ *p_groups_count = ARRAY_SIZE(mlxsw_sp1_trap_group_items_arr);
+
+ return 0;
+}
+
+const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops = {
+ .groups_init = mlxsw_sp1_trap_groups_init,
+};
+
+static const struct mlxsw_sp_trap_group_item
+mlxsw_sp2_trap_group_items_arr[] = {
+};
+
+static int
+mlxsw_sp2_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_group_item **arr,
+ size_t *p_groups_count)
+{
+ *arr = mlxsw_sp2_trap_group_items_arr;
+ *p_groups_count = ARRAY_SIZE(mlxsw_sp2_trap_group_items_arr);
+
+ return 0;
+}
+
+const struct mlxsw_sp_trap_ops mlxsw_sp2_trap_ops = {
+ .groups_init = mlxsw_sp2_trap_groups_init,
+};
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
index a0560fb030ee..4ae5212b9a48 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
@@ -23,4 +23,13 @@ struct mlxsw_sp_trap {
unsigned long policers_usage[]; /* Usage bitmap */
};
+struct mlxsw_sp_trap_ops {
+ int (*groups_init)(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_group_item **arr,
+ size_t *p_groups_count);
+};
+
+extern const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops;
+extern const struct mlxsw_sp_trap_ops mlxsw_sp2_trap_ops;
+
#endif
--
2.26.2
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