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Date: Mon, 3 Aug 2020 19:11:38 +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 6/9] mlxsw: spectrum_trap: Allow for per-ASIC traps initialization
From: Ido Schimmel <idosch@...lanox.com>
Subsequent patches will need to register different traps for Spectrum-1
and Spectrum-2 onwards.
Enable that by invoking a per-ASIC operation during traps
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>
---
.../ethernet/mellanox/mlxsw/spectrum_trap.c | 81 ++++++++++++++++---
.../ethernet/mellanox/mlxsw/spectrum_trap.h | 3 +
2 files changed, 75 insertions(+), 9 deletions(-)
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
index 3726be5c02b4..93dd88abbe23 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.c
@@ -1247,6 +1247,43 @@ mlxsw_sp_trap_listener_is_valid(const struct mlxsw_listener *listener)
return listener->trap_id != 0;
}
+static int mlxsw_sp_trap_items_arr_init(struct mlxsw_sp *mlxsw_sp)
+{
+ size_t common_traps_count = ARRAY_SIZE(mlxsw_sp_trap_items_arr);
+ const struct mlxsw_sp_trap_item *spec_trap_items_arr;
+ size_t elem_size = sizeof(struct mlxsw_sp_trap_item);
+ struct mlxsw_sp_trap *trap = mlxsw_sp->trap;
+ size_t traps_count, spec_traps_count;
+ int err;
+
+ err = mlxsw_sp->trap_ops->traps_init(mlxsw_sp, &spec_trap_items_arr,
+ &spec_traps_count);
+ if (err)
+ return err;
+
+ /* The trap items array is created by concatenating the common trap
+ * items and the ASIC-specific trap items.
+ */
+ traps_count = common_traps_count + spec_traps_count;
+ trap->trap_items_arr = kcalloc(traps_count, elem_size, GFP_KERNEL);
+ if (!trap->trap_items_arr)
+ return -ENOMEM;
+
+ memcpy(trap->trap_items_arr, mlxsw_sp_trap_items_arr,
+ elem_size * common_traps_count);
+ memcpy(trap->trap_items_arr + common_traps_count,
+ spec_trap_items_arr, elem_size * spec_traps_count);
+
+ trap->traps_count = traps_count;
+
+ return 0;
+}
+
+static void mlxsw_sp_trap_items_arr_fini(struct mlxsw_sp *mlxsw_sp)
+{
+ kfree(mlxsw_sp->trap->trap_items_arr);
+}
+
static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
{
struct devlink *devlink = priv_to_devlink(mlxsw_sp->core);
@@ -1254,13 +1291,9 @@ static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
const struct mlxsw_sp_trap_item *trap_item;
int err, i;
- trap->trap_items_arr = kmemdup(mlxsw_sp_trap_items_arr,
- sizeof(mlxsw_sp_trap_items_arr),
- GFP_KERNEL);
- if (!trap->trap_items_arr)
- return -ENOMEM;
-
- trap->traps_count = ARRAY_SIZE(mlxsw_sp_trap_items_arr);
+ err = mlxsw_sp_trap_items_arr_init(mlxsw_sp);
+ if (err)
+ return err;
for (i = 0; i < trap->traps_count; i++) {
trap_item = &trap->trap_items_arr[i];
@@ -1277,7 +1310,7 @@ static int mlxsw_sp_traps_init(struct mlxsw_sp *mlxsw_sp)
trap_item = &trap->trap_items_arr[i];
devlink_traps_unregister(devlink, &trap_item->trap, 1);
}
- kfree(trap->trap_items_arr);
+ mlxsw_sp_trap_items_arr_fini(mlxsw_sp);
return err;
}
@@ -1293,7 +1326,7 @@ static void mlxsw_sp_traps_fini(struct mlxsw_sp *mlxsw_sp)
trap_item = &trap->trap_items_arr[i];
devlink_traps_unregister(devlink, &trap_item->trap, 1);
}
- kfree(trap->trap_items_arr);
+ mlxsw_sp_trap_items_arr_fini(mlxsw_sp);
}
int mlxsw_sp_devlink_traps_init(struct mlxsw_sp *mlxsw_sp)
@@ -1617,6 +1650,10 @@ static const struct mlxsw_sp_trap_group_item
mlxsw_sp1_trap_group_items_arr[] = {
};
+static const struct mlxsw_sp_trap_item
+mlxsw_sp1_trap_items_arr[] = {
+};
+
static int
mlxsw_sp1_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_trap_group_item **arr,
@@ -1628,14 +1665,29 @@ mlxsw_sp1_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
return 0;
}
+static int mlxsw_sp1_traps_init(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_item **arr,
+ size_t *p_traps_count)
+{
+ *arr = mlxsw_sp1_trap_items_arr;
+ *p_traps_count = ARRAY_SIZE(mlxsw_sp1_trap_items_arr);
+
+ return 0;
+}
+
const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops = {
.groups_init = mlxsw_sp1_trap_groups_init,
+ .traps_init = mlxsw_sp1_traps_init,
};
static const struct mlxsw_sp_trap_group_item
mlxsw_sp2_trap_group_items_arr[] = {
};
+static const struct mlxsw_sp_trap_item
+mlxsw_sp2_trap_items_arr[] = {
+};
+
static int
mlxsw_sp2_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
const struct mlxsw_sp_trap_group_item **arr,
@@ -1647,6 +1699,17 @@ mlxsw_sp2_trap_groups_init(struct mlxsw_sp *mlxsw_sp,
return 0;
}
+static int mlxsw_sp2_traps_init(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_item **arr,
+ size_t *p_traps_count)
+{
+ *arr = mlxsw_sp2_trap_items_arr;
+ *p_traps_count = ARRAY_SIZE(mlxsw_sp2_trap_items_arr);
+
+ return 0;
+}
+
const struct mlxsw_sp_trap_ops mlxsw_sp2_trap_ops = {
.groups_init = mlxsw_sp2_trap_groups_init,
+ .traps_init = mlxsw_sp2_traps_init,
};
diff --git a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
index 4ae5212b9a48..b8df684bedef 100644
--- a/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
+++ b/drivers/net/ethernet/mellanox/mlxsw/spectrum_trap.h
@@ -27,6 +27,9 @@ 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);
+ int (*traps_init)(struct mlxsw_sp *mlxsw_sp,
+ const struct mlxsw_sp_trap_item **arr,
+ size_t *p_traps_count);
};
extern const struct mlxsw_sp_trap_ops mlxsw_sp1_trap_ops;
--
2.26.2
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