net: sparx5: ops out function for DSM calendar calculation

The DSM (Disassembler) calendar grants each port access to internal
busses. The configuration of the calendar is done differently on Sparx5
and lan969x. Therefore ops out the function that calculates the
calendar.

Reviewed-by: Steen Hegelund <[email protected]>
Reviewed-by: Jacob Keller <[email protected]>
Signed-off-by: Daniel Machon <[email protected]>
Signed-off-by: Paolo Abeni <[email protected]>

Author: Danielmachon

drivers/net/ethernet/microchip/sparx5/sparx5_calendar.c

@@ -15,9 +15,7 @@
 #define SPX5_CALBITS_PER_PORT          3   /* Bit per port in calendar register */
 
 /* DSM calendar information */
-#define SPX5_DSM_CAL_LEN               64
 #define SPX5_DSM_CAL_EMPTY             0xFFFF
-#define SPX5_DSM_CAL_MAX_DEVS_PER_TAXI 13
 #define SPX5_DSM_CAL_TAXIS             8
 #define SPX5_DSM_CAL_BW_LOSS           553
 
@@ -37,19 +35,6 @@ static u32 sparx5_taxi_ports[SPX5_DSM_CAL_TAXIS][SPX5_DSM_CAL_MAX_DEVS_PER_TAXI]
 	{64, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99, 99},
 };
 
-struct sparx5_calendar_data {
-	u32 schedule[SPX5_DSM_CAL_LEN];
-	u32 avg_dist[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
-	u32 taxi_ports[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
-	u32 taxi_speeds[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
-	u32 dev_slots[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
-	u32 new_slots[SPX5_DSM_CAL_LEN];
-	u32 temp_sched[SPX5_DSM_CAL_LEN];
-	u32 indices[SPX5_DSM_CAL_LEN];
-	u32 short_list[SPX5_DSM_CAL_LEN];
-	u32 long_list[SPX5_DSM_CAL_LEN];
-};
-
 static u32 sparx5_target_bandwidth(struct sparx5 *sparx5)
 {
 	switch (sparx5->target_ct) {
@@ -279,8 +264,8 @@ static u32 sparx5_dsm_cp_cal(u32 *sched)
 	return SPX5_DSM_CAL_EMPTY;
 }
 
-static int sparx5_dsm_calendar_calc(struct sparx5 *sparx5, u32 taxi,
-				    struct sparx5_calendar_data *data)
+int sparx5_dsm_calendar_calc(struct sparx5 *sparx5, u32 taxi,
+			     struct sparx5_calendar_data *data)
 {
 	bool slow_mode;
 	u32 gcd, idx, sum, min, factor;
@@ -566,6 +551,7 @@ static int sparx5_dsm_calendar_update(struct sparx5 *sparx5, u32 taxi,
 /* Configure the DSM calendar based on port configuration */
 int sparx5_config_dsm_calendar(struct sparx5 *sparx5)
 {
+	const struct sparx5_ops *ops = sparx5->data->ops;
 	int taxi;
 	struct sparx5_calendar_data *data;
 	int err = 0;
@@ -575,7 +561,7 @@ int sparx5_config_dsm_calendar(struct sparx5 *sparx5)
 		return -ENOMEM;
 
 	for (taxi = 0; taxi < sparx5->data->consts->n_dsm_cal_taxis; ++taxi) {
-		err = sparx5_dsm_calendar_calc(sparx5, taxi, data);
+		err = ops->dsm_calendar_calc(sparx5, taxi, data);
 		if (err) {
 			dev_err(sparx5->dev, "DSM calendar calculation failed\n");
 			goto cal_out;

drivers/net/ethernet/microchip/sparx5/sparx5_main.c

@@ -995,6 +995,7 @@ static const struct sparx5_ops sparx5_ops = {
 	.get_sdlb_group          = &sparx5_get_sdlb_group,
 	.set_port_mux            = &sparx5_port_mux_set,
 	.ptp_irq_handler         = &sparx5_ptp_irq_handler,
+	.dsm_calendar_calc       = &sparx5_dsm_calendar_calc,
 };
 
 static const struct sparx5_match_data sparx5_desc = {

drivers/net/ethernet/microchip/sparx5/sparx5_main.h

@@ -101,8 +101,24 @@ enum sparx5_vlan_port_type {
 #define IFH_PDU_TYPE_IPV4_UDP_PTP	0x6
 #define IFH_PDU_TYPE_IPV6_UDP_PTP	0x7
 
+#define SPX5_DSM_CAL_LEN               64
+#define SPX5_DSM_CAL_MAX_DEVS_PER_TAXI 13
+
 struct sparx5;
 
+struct sparx5_calendar_data {
+	u32 schedule[SPX5_DSM_CAL_LEN];
+	u32 avg_dist[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
+	u32 taxi_ports[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
+	u32 taxi_speeds[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
+	u32 dev_slots[SPX5_DSM_CAL_MAX_DEVS_PER_TAXI];
+	u32 new_slots[SPX5_DSM_CAL_LEN];
+	u32 temp_sched[SPX5_DSM_CAL_LEN];
+	u32 indices[SPX5_DSM_CAL_LEN];
+	u32 short_list[SPX5_DSM_CAL_LEN];
+	u32 long_list[SPX5_DSM_CAL_LEN];
+};
+
 /* Frame DMA receive state:
  * For each DB, there is a SKB, and the skb data pointer is mapped in
  * the DB. Once a frame is received the skb is given to the upper layers
@@ -271,6 +287,8 @@ struct sparx5_ops {
 			    struct sparx5_port_config *conf);
 
 	irqreturn_t (*ptp_irq_handler)(int irq, void *args);
+	int (*dsm_calendar_calc)(struct sparx5 *sparx5, u32 taxi,
+				 struct sparx5_calendar_data *data);
 };
 
 struct sparx5_main_io_resource {
@@ -418,6 +436,9 @@ void sparx5_vlan_port_apply(struct sparx5 *sparx5, struct sparx5_port *port);
 /* sparx5_calendar.c */
 int sparx5_config_auto_calendar(struct sparx5 *sparx5);
 int sparx5_config_dsm_calendar(struct sparx5 *sparx5);
+int sparx5_dsm_calendar_calc(struct sparx5 *sparx5, u32 taxi,
+			     struct sparx5_calendar_data *data);
+
 
 /* sparx5_ethtool.c */
 void sparx5_get_stats64(struct net_device *ndev, struct rtnl_link_stats64 *stats);