net: mscc: ocelot: export ethtool MAC Merge stats for Felix VSC9959

The Felix VSC9959 switch supports frame preemption and has a MAC Merge
layer. In addition to the structured stats that exist for the eMAC,
export the counters associated with its pMAC (pause, RMON, MAC, PHY,
control) plus the high-level MAC Merge layer stats. The unstructured
ethtool counters, as well as the rtnl_link_stats64 were left to report
only the eMAC counters.

Because statistics processing is quite self-contained in ocelot_stats.c
now, I've opted for introducing an ocelot->mm_supported bool, based on
which the common switch lib does everything, rather than pushing the
TSN-specific code in felix_vsc9959.c, as happens for other TSN stuff.

Signed-off-by: Vladimir Oltean <[email protected]>
Signed-off-by: David S. Miller <[email protected]>

Author: vladimiroltean

drivers/net/dsa/ocelot/felix.c

@@ -2024,13 +2024,22 @@ static int felix_port_del_dscp_prio(struct dsa_switch *ds, int port, u8 dscp,
 	return ocelot_port_del_dscp_prio(ocelot, port, dscp, prio);
 }
 
+static void felix_get_mm_stats(struct dsa_switch *ds, int port,
+			       struct ethtool_mm_stats *stats)
+{
+	struct ocelot *ocelot = ds->priv;
+
+	ocelot_port_get_mm_stats(ocelot, port, stats);
+}
+
 const struct dsa_switch_ops felix_switch_ops = {
 	.get_tag_protocol		= felix_get_tag_protocol,
 	.change_tag_protocol		= felix_change_tag_protocol,
 	.connect_tag_protocol		= felix_connect_tag_protocol,
 	.setup				= felix_setup,
 	.teardown			= felix_teardown,
 	.set_ageing_time		= felix_set_ageing_time,
+	.get_mm_stats			= felix_get_mm_stats,
 	.get_stats64			= felix_get_stats64,
 	.get_pause_stats		= felix_get_pause_stats,
 	.get_rmon_stats			= felix_get_rmon_stats,

drivers/net/dsa/ocelot/felix_vsc9959.c

@@ -318,6 +318,29 @@ static const u32 vsc9959_sys_regmap[] = {
 	REG(SYS_COUNT_RX_GREEN_PRIO_5,		0x0000a4),
 	REG(SYS_COUNT_RX_GREEN_PRIO_6,		0x0000a8),
 	REG(SYS_COUNT_RX_GREEN_PRIO_7,		0x0000ac),
+	REG(SYS_COUNT_RX_ASSEMBLY_ERRS,		0x0000b0),
+	REG(SYS_COUNT_RX_SMD_ERRS,		0x0000b4),
+	REG(SYS_COUNT_RX_ASSEMBLY_OK,		0x0000b8),
+	REG(SYS_COUNT_RX_MERGE_FRAGMENTS,	0x0000bc),
+	REG(SYS_COUNT_RX_PMAC_OCTETS,		0x0000c0),
+	REG(SYS_COUNT_RX_PMAC_UNICAST,		0x0000c4),
+	REG(SYS_COUNT_RX_PMAC_MULTICAST,	0x0000c8),
+	REG(SYS_COUNT_RX_PMAC_BROADCAST,	0x0000cc),
+	REG(SYS_COUNT_RX_PMAC_SHORTS,		0x0000d0),
+	REG(SYS_COUNT_RX_PMAC_FRAGMENTS,	0x0000d4),
+	REG(SYS_COUNT_RX_PMAC_JABBERS,		0x0000d8),
+	REG(SYS_COUNT_RX_PMAC_CRC_ALIGN_ERRS,	0x0000dc),
+	REG(SYS_COUNT_RX_PMAC_SYM_ERRS,		0x0000e0),
+	REG(SYS_COUNT_RX_PMAC_64,		0x0000e4),
+	REG(SYS_COUNT_RX_PMAC_65_127,		0x0000e8),
+	REG(SYS_COUNT_RX_PMAC_128_255,		0x0000ec),
+	REG(SYS_COUNT_RX_PMAC_256_511,		0x0000f0),
+	REG(SYS_COUNT_RX_PMAC_512_1023,		0x0000f4),
+	REG(SYS_COUNT_RX_PMAC_1024_1526,	0x0000f8),
+	REG(SYS_COUNT_RX_PMAC_1527_MAX,		0x0000fc),
+	REG(SYS_COUNT_RX_PMAC_PAUSE,		0x000100),
+	REG(SYS_COUNT_RX_PMAC_CONTROL,		0x000104),
+	REG(SYS_COUNT_RX_PMAC_LONGS,		0x000108),
 	REG(SYS_COUNT_TX_OCTETS,		0x000200),
 	REG(SYS_COUNT_TX_UNICAST,		0x000204),
 	REG(SYS_COUNT_TX_MULTICAST,		0x000208),
@@ -349,6 +372,20 @@ static const u32 vsc9959_sys_regmap[] = {
 	REG(SYS_COUNT_TX_GREEN_PRIO_6,		0x000270),
 	REG(SYS_COUNT_TX_GREEN_PRIO_7,		0x000274),
 	REG(SYS_COUNT_TX_AGED,			0x000278),
+	REG(SYS_COUNT_TX_MM_HOLD,		0x00027c),
+	REG(SYS_COUNT_TX_MERGE_FRAGMENTS,	0x000280),
+	REG(SYS_COUNT_TX_PMAC_OCTETS,		0x000284),
+	REG(SYS_COUNT_TX_PMAC_UNICAST,		0x000288),
+	REG(SYS_COUNT_TX_PMAC_MULTICAST,	0x00028c),
+	REG(SYS_COUNT_TX_PMAC_BROADCAST,	0x000290),
+	REG(SYS_COUNT_TX_PMAC_PAUSE,		0x000294),
+	REG(SYS_COUNT_TX_PMAC_64,		0x000298),
+	REG(SYS_COUNT_TX_PMAC_65_127,		0x00029c),
+	REG(SYS_COUNT_TX_PMAC_128_255,		0x0002a0),
+	REG(SYS_COUNT_TX_PMAC_256_511,		0x0002a4),
+	REG(SYS_COUNT_TX_PMAC_512_1023,		0x0002a8),
+	REG(SYS_COUNT_TX_PMAC_1024_1526,	0x0002ac),
+	REG(SYS_COUNT_TX_PMAC_1527_MAX,		0x0002b0),
 	REG(SYS_COUNT_DROP_LOCAL,		0x000400),
 	REG(SYS_COUNT_DROP_TAIL,		0x000404),
 	REG(SYS_COUNT_DROP_YELLOW_PRIO_0,	0x000408),
@@ -2623,6 +2660,7 @@ static int felix_pci_probe(struct pci_dev *pdev,
 	}
 
 	ocelot->ptp = 1;
+	ocelot->mm_supported = true;
 
 	ds = kzalloc(sizeof(struct dsa_switch), GFP_KERNEL);
 	if (!ds) {