net: dsa: microchip: fix KSZ87xx family structure wrt the datasheet

The KSZ87xx switches have 32 static MAC address table entries and not
8. This fixes -ENOSPC non-critical errors from ksz8_add_sta_mac when
configured as a bridge.

Add a new ksz87xx_dev_ops structure to be able to use the
ksz_r_mib_stat64 pointer for this family; this corrects a wrong
mib->counters cast to ksz88xx_stats_raw. This fixes iproute2
statistics. Rename ksz8_dev_ops structure to ksz88x3_dev_ops, in line
with ksz_is_* naming conventions from ksz_common.h.

Signed-off-by: Pieter Van Trappen <pieter.van.trappen@cern.ch>
Acked-by: Arun Ramadoss <arun.ramadoss@microchip.com>
Link: https://patch.msgid.link/20240813142750.772781-6-vtpieter@gmail.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>

1 files changed, 43 insertions, 8 deletions

diff --git a/drivers/net/dsa/microchip/ksz_common.c b/drivers/net/dsa/microchip/ksz_common.c
index 3f3230d181d8..cd3991792b69 100644
--- a/drivers/net/dsa/microchip/ksz_common.c
+++ b/drivers/net/dsa/microchip/ksz_common.c
@@ -277,7 +277,7 @@ static const struct phylink_mac_ops ksz8_phylink_mac_ops = {
 	.mac_link_up	= ksz8_phylink_mac_link_up,
 };
 
-static const struct ksz_dev_ops ksz8_dev_ops = {
+static const struct ksz_dev_ops ksz88x3_dev_ops = {
 	.setup = ksz8_setup,
 	.get_port_addr = ksz8_get_port_addr,
 	.cfg_port_member = ksz8_cfg_port_member,
@@ -312,6 +312,41 @@ static const struct ksz_dev_ops ksz8_dev_ops = {
 	.pme_pwrite8 = ksz8_pme_pwrite8,
 };
 
+static const struct ksz_dev_ops ksz87xx_dev_ops = {
+	.setup = ksz8_setup,
+	.get_port_addr = ksz8_get_port_addr,
+	.cfg_port_member = ksz8_cfg_port_member,
+	.flush_dyn_mac_table = ksz8_flush_dyn_mac_table,
+	.port_setup = ksz8_port_setup,
+	.r_phy = ksz8_r_phy,
+	.w_phy = ksz8_w_phy,
+	.r_mib_cnt = ksz8_r_mib_cnt,
+	.r_mib_pkt = ksz8_r_mib_pkt,
+	.r_mib_stat64 = ksz_r_mib_stats64,
+	.freeze_mib = ksz8_freeze_mib,
+	.port_init_cnt = ksz8_port_init_cnt,
+	.fdb_dump = ksz8_fdb_dump,
+	.fdb_add = ksz8_fdb_add,
+	.fdb_del = ksz8_fdb_del,
+	.mdb_add = ksz8_mdb_add,
+	.mdb_del = ksz8_mdb_del,
+	.vlan_filtering = ksz8_port_vlan_filtering,
+	.vlan_add = ksz8_port_vlan_add,
+	.vlan_del = ksz8_port_vlan_del,
+	.mirror_add = ksz8_port_mirror_add,
+	.mirror_del = ksz8_port_mirror_del,
+	.get_caps = ksz8_get_caps,
+	.config_cpu_port = ksz8_config_cpu_port,
+	.enable_stp_addr = ksz8_enable_stp_addr,
+	.reset = ksz8_reset_switch,
+	.init = ksz8_switch_init,
+	.exit = ksz8_switch_exit,
+	.change_mtu = ksz8_change_mtu,
+	.pme_write8 = ksz8_pme_write8,
+	.pme_pread8 = ksz8_pme_pread8,
+	.pme_pwrite8 = ksz8_pme_pwrite8,
+};
+
 static void ksz9477_phylink_mac_link_up(struct phylink_config *config,
 					struct phy_device *phydev,
 					unsigned int mode,
@@ -1262,12 +1297,12 @@ const struct ksz_chip_data ksz_switch_chips[] = {
 		.dev_name = "KSZ8795",
 		.num_vlans = 4096,
 		.num_alus = 0,
-		.num_statics = 8,
+		.num_statics = 32,
 		.cpu_ports = 0x10,	/* can be configured as cpu port */
 		.port_cnt = 5,		/* total cpu and user ports */
 		.num_tx_queues = 4,
 		.num_ipms = 4,
-		.ops = &ksz8_dev_ops,
+		.ops = &ksz87xx_dev_ops,
 		.phylink_mac_ops = &ksz8_phylink_mac_ops,
 		.ksz87xx_eee_link_erratum = true,
 		.mib_names = ksz9477_mib_names,
@@ -1303,12 +1338,12 @@ const struct ksz_chip_data ksz_switch_chips[] = {
 		.dev_name = "KSZ8794",
 		.num_vlans = 4096,
 		.num_alus = 0,
-		.num_statics = 8,
+		.num_statics = 32,
 		.cpu_ports = 0x10,	/* can be configured as cpu port */
 		.port_cnt = 5,		/* total cpu and user ports */
 		.num_tx_queues = 4,
 		.num_ipms = 4,
-		.ops = &ksz8_dev_ops,
+		.ops = &ksz87xx_dev_ops,
 		.phylink_mac_ops = &ksz8_phylink_mac_ops,
 		.ksz87xx_eee_link_erratum = true,
 		.mib_names = ksz9477_mib_names,
@@ -1330,12 +1365,12 @@ const struct ksz_chip_data ksz_switch_chips[] = {
 		.dev_name = "KSZ8765",
 		.num_vlans = 4096,
 		.num_alus = 0,
-		.num_statics = 8,
+		.num_statics = 32,
 		.cpu_ports = 0x10,	/* can be configured as cpu port */
 		.port_cnt = 5,		/* total cpu and user ports */
 		.num_tx_queues = 4,
 		.num_ipms = 4,
-		.ops = &ksz8_dev_ops,
+		.ops = &ksz87xx_dev_ops,
 		.phylink_mac_ops = &ksz8_phylink_mac_ops,
 		.ksz87xx_eee_link_erratum = true,
 		.mib_names = ksz9477_mib_names,
@@ -1362,7 +1397,7 @@ const struct ksz_chip_data ksz_switch_chips[] = {
 		.port_cnt = 3,
 		.num_tx_queues = 4,
 		.num_ipms = 4,
-		.ops = &ksz8_dev_ops,
+		.ops = &ksz88x3_dev_ops,
 		.phylink_mac_ops = &ksz8830_phylink_mac_ops,
 		.mib_names = ksz88xx_mib_names,
 		.mib_cnt = ARRAY_SIZE(ksz88xx_mib_names),