net: dsa: sja1105: Add static config tables for scheduling

In order to support tc-taprio offload, the TTEthernet egress scheduling
core registers must be made visible through the static interface.

Signed-off-by: Vladimir Oltean <olteanv@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 167 insertions, 0 deletions

diff --git a/drivers/net/dsa/sja1105/sja1105_static_config.c b/drivers/net/dsa/sja1105/sja1105_static_config.c
index b31c737dc560..0d03e13e9909 100644
--- a/drivers/net/dsa/sja1105/sja1105_static_config.c
+++ b/drivers/net/dsa/sja1105/sja1105_static_config.c
@@ -371,6 +371,63 @@ size_t sja1105pqrs_mac_config_entry_packing(void *buf, void *entry_ptr,
 	return size;
 }
 
+static size_t
+sja1105_schedule_entry_points_params_entry_packing(void *buf, void *entry_ptr,
+						   enum packing_op op)
+{
+	struct sja1105_schedule_entry_points_params_entry *entry = entry_ptr;
+	const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY;
+
+	sja1105_packing(buf, &entry->clksrc,    31, 30, size, op);
+	sja1105_packing(buf, &entry->actsubsch, 29, 27, size, op);
+	return size;
+}
+
+static size_t
+sja1105_schedule_entry_points_entry_packing(void *buf, void *entry_ptr,
+					    enum packing_op op)
+{
+	struct sja1105_schedule_entry_points_entry *entry = entry_ptr;
+	const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY;
+
+	sja1105_packing(buf, &entry->subschindx, 31, 29, size, op);
+	sja1105_packing(buf, &entry->delta,      28, 11, size, op);
+	sja1105_packing(buf, &entry->address,    10, 1,  size, op);
+	return size;
+}
+
+static size_t sja1105_schedule_params_entry_packing(void *buf, void *entry_ptr,
+						    enum packing_op op)
+{
+	const size_t size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY;
+	struct sja1105_schedule_params_entry *entry = entry_ptr;
+	int offset, i;
+
+	for (i = 0, offset = 16; i < 8; i++, offset += 10)
+		sja1105_packing(buf, &entry->subscheind[i],
+				offset + 9, offset + 0, size, op);
+	return size;
+}
+
+static size_t sja1105_schedule_entry_packing(void *buf, void *entry_ptr,
+					     enum packing_op op)
+{
+	const size_t size = SJA1105_SIZE_SCHEDULE_ENTRY;
+	struct sja1105_schedule_entry *entry = entry_ptr;
+
+	sja1105_packing(buf, &entry->winstindex,  63, 54, size, op);
+	sja1105_packing(buf, &entry->winend,      53, 53, size, op);
+	sja1105_packing(buf, &entry->winst,       52, 52, size, op);
+	sja1105_packing(buf, &entry->destports,   51, 47, size, op);
+	sja1105_packing(buf, &entry->setvalid,    46, 46, size, op);
+	sja1105_packing(buf, &entry->txen,        45, 45, size, op);
+	sja1105_packing(buf, &entry->resmedia_en, 44, 44, size, op);
+	sja1105_packing(buf, &entry->resmedia,    43, 36, size, op);
+	sja1105_packing(buf, &entry->vlindex,     35, 26, size, op);
+	sja1105_packing(buf, &entry->delta,       25, 8,  size, op);
+	return size;
+}
+
 size_t sja1105_vlan_lookup_entry_packing(void *buf, void *entry_ptr,
 					 enum packing_op op)
 {
@@ -447,11 +504,15 @@ static void sja1105_table_write_crc(u8 *table_start, u8 *crc_ptr)
  * before blindly indexing kernel memory with the blk_idx.
  */
 static u64 blk_id_map[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = BLKID_SCHEDULE,
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = BLKID_SCHEDULE_ENTRY_POINTS,
 	[BLK_IDX_L2_LOOKUP] = BLKID_L2_LOOKUP,
 	[BLK_IDX_L2_POLICING] = BLKID_L2_POLICING,
 	[BLK_IDX_VLAN_LOOKUP] = BLKID_VLAN_LOOKUP,
 	[BLK_IDX_L2_FORWARDING] = BLKID_L2_FORWARDING,
 	[BLK_IDX_MAC_CONFIG] = BLKID_MAC_CONFIG,
+	[BLK_IDX_SCHEDULE_PARAMS] = BLKID_SCHEDULE_PARAMS,
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = BLKID_SCHEDULE_ENTRY_POINTS_PARAMS,
 	[BLK_IDX_L2_LOOKUP_PARAMS] = BLKID_L2_LOOKUP_PARAMS,
 	[BLK_IDX_L2_FORWARDING_PARAMS] = BLKID_L2_FORWARDING_PARAMS,
 	[BLK_IDX_AVB_PARAMS] = BLKID_AVB_PARAMS,
@@ -461,6 +522,13 @@ static u64 blk_id_map[BLK_IDX_MAX] = {
 
 const char *sja1105_static_config_error_msg[] = {
 	[SJA1105_CONFIG_OK] = "",
+	[SJA1105_TTETHERNET_NOT_SUPPORTED] =
+		"schedule-table present, but TTEthernet is "
+		"only supported on T and Q/S",
+	[SJA1105_INCORRECT_TTETHERNET_CONFIGURATION] =
+		"schedule-table present, but one of "
+		"schedule-entry-points-table, schedule-parameters-table or "
+		"schedule-entry-points-parameters table is empty",
 	[SJA1105_MISSING_L2_POLICING_TABLE] =
 		"l2-policing-table needs to have at least one entry",
 	[SJA1105_MISSING_L2_FORWARDING_TABLE] =
@@ -508,6 +576,21 @@ sja1105_static_config_check_valid(const struct sja1105_static_config *config)
 #define IS_FULL(blk_idx) \
 	(tables[blk_idx].entry_count == tables[blk_idx].ops->max_entry_count)
 
+	if (tables[BLK_IDX_SCHEDULE].entry_count) {
+		if (config->device_id != SJA1105T_DEVICE_ID &&
+		    config->device_id != SJA1105QS_DEVICE_ID)
+			return SJA1105_TTETHERNET_NOT_SUPPORTED;
+
+		if (tables[BLK_IDX_SCHEDULE_ENTRY_POINTS].entry_count == 0)
+			return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
+
+		if (!IS_FULL(BLK_IDX_SCHEDULE_PARAMS))
+			return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
+
+		if (!IS_FULL(BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS))
+			return SJA1105_INCORRECT_TTETHERNET_CONFIGURATION;
+	}
+
 	if (tables[BLK_IDX_L2_POLICING].entry_count == 0)
 		return SJA1105_MISSING_L2_POLICING_TABLE;
 
@@ -614,6 +697,8 @@ sja1105_static_config_get_length(const struct sja1105_static_config *config)
 
 /* SJA1105E: First generation, no TTEthernet */
 struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105et_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -644,6 +729,8 @@ struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105et_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
@@ -678,6 +765,18 @@ struct sja1105_table_ops sja1105e_table_ops[BLK_IDX_MAX] = {
 
 /* SJA1105T: First generation, TTEthernet */
 struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {
+		.packing = sja1105_schedule_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
+		.packing = sja1105_schedule_entry_points_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105et_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -708,6 +807,18 @@ struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105ET_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {
+		.packing = sja1105_schedule_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
+		.packing = sja1105_schedule_entry_points_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105et_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
@@ -742,6 +853,8 @@ struct sja1105_table_ops sja1105t_table_ops[BLK_IDX_MAX] = {
 
 /* SJA1105P: Second generation, no TTEthernet, no SGMII */
 struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105pqrs_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -772,6 +885,8 @@ struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105pqrs_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
@@ -806,6 +921,18 @@ struct sja1105_table_ops sja1105p_table_ops[BLK_IDX_MAX] = {
 
 /* SJA1105Q: Second generation, TTEthernet, no SGMII */
 struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {
+		.packing = sja1105_schedule_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
+		.packing = sja1105_schedule_entry_points_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105pqrs_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -836,6 +963,18 @@ struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {
+		.packing = sja1105_schedule_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
+		.packing = sja1105_schedule_entry_points_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105pqrs_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
@@ -870,6 +1009,8 @@ struct sja1105_table_ops sja1105q_table_ops[BLK_IDX_MAX] = {
 
 /* SJA1105R: Second generation, no TTEthernet, SGMII */
 struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {0},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105pqrs_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -900,6 +1041,8 @@ struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {0},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {0},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105pqrs_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),
@@ -934,6 +1077,18 @@ struct sja1105_table_ops sja1105r_table_ops[BLK_IDX_MAX] = {
 
 /* SJA1105S: Second generation, TTEthernet, SGMII */
 struct sja1105_table_ops sja1105s_table_ops[BLK_IDX_MAX] = {
+	[BLK_IDX_SCHEDULE] = {
+		.packing = sja1105_schedule_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS] = {
+		.packing = sja1105_schedule_entry_points_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP] = {
 		.packing = sja1105pqrs_l2_lookup_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_entry),
@@ -964,6 +1119,18 @@ struct sja1105_table_ops sja1105s_table_ops[BLK_IDX_MAX] = {
 		.packed_entry_size = SJA1105PQRS_SIZE_MAC_CONFIG_ENTRY,
 		.max_entry_count = SJA1105_MAX_MAC_CONFIG_COUNT,
 	},
+	[BLK_IDX_SCHEDULE_PARAMS] = {
+		.packing = sja1105_schedule_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_PARAMS_COUNT,
+	},
+	[BLK_IDX_SCHEDULE_ENTRY_POINTS_PARAMS] = {
+		.packing = sja1105_schedule_entry_points_params_entry_packing,
+		.unpacked_entry_size = sizeof(struct sja1105_schedule_entry_points_params_entry),
+		.packed_entry_size = SJA1105_SIZE_SCHEDULE_ENTRY_POINTS_PARAMS_ENTRY,
+		.max_entry_count = SJA1105_MAX_SCHEDULE_ENTRY_POINTS_PARAMS_COUNT,
+	},
 	[BLK_IDX_L2_LOOKUP_PARAMS] = {
 		.packing = sja1105pqrs_l2_lookup_params_entry_packing,
 		.unpacked_entry_size = sizeof(struct sja1105_l2_lookup_params_entry),