diff options
| -rw-r--r-- | drivers/net/dsa/dsa_loop.c | 79 |
1 files changed, 77 insertions, 2 deletions
diff --git a/drivers/net/dsa/dsa_loop.c b/drivers/net/dsa/dsa_loop.c index fb888593c2e9..fdd8f3872102 100644 --- a/drivers/net/dsa/dsa_loop.c +++ b/drivers/net/dsa/dsa_loop.c @@ -14,6 +14,7 @@ #include <linux/phy.h> #include <linux/phy_fixed.h> #include <linux/export.h> +#include <linux/ethtool.h> #include <linux/workqueue.h> #include <linux/module.h> #include <linux/if_bridge.h> @@ -26,6 +27,30 @@ struct dsa_loop_vlan { u16 untagged; }; +struct dsa_loop_mib_entry { + char name[ETH_GSTRING_LEN]; + unsigned long val; +}; + +enum dsa_loop_mib_counters { + DSA_LOOP_PHY_READ_OK, + DSA_LOOP_PHY_READ_ERR, + DSA_LOOP_PHY_WRITE_OK, + DSA_LOOP_PHY_WRITE_ERR, + __DSA_LOOP_CNT_MAX, +}; + +static struct dsa_loop_mib_entry dsa_loop_mibs[] = { + [DSA_LOOP_PHY_READ_OK] = { "phy_read_ok", }, + [DSA_LOOP_PHY_READ_ERR] = { "phy_read_err", }, + [DSA_LOOP_PHY_WRITE_OK] = { "phy_write_ok", }, + [DSA_LOOP_PHY_WRITE_ERR] = { "phy_write_err", }, +}; + +struct dsa_loop_port { + struct dsa_loop_mib_entry mib[__DSA_LOOP_CNT_MAX]; +}; + #define DSA_LOOP_VLANS 5 struct dsa_loop_priv { @@ -33,6 +58,7 @@ struct dsa_loop_priv { unsigned int port_base; struct dsa_loop_vlan vlans[DSA_LOOP_VLANS]; struct net_device *netdev; + struct dsa_loop_port ports[DSA_MAX_PORTS]; u16 pvid; }; @@ -47,11 +73,43 @@ static enum dsa_tag_protocol dsa_loop_get_protocol(struct dsa_switch *ds) static int dsa_loop_setup(struct dsa_switch *ds) { + struct dsa_loop_priv *ps = ds->priv; + unsigned int i; + + for (i = 0; i < ds->num_ports; i++) + memcpy(ps->ports[i].mib, dsa_loop_mibs, + sizeof(dsa_loop_mibs)); + dev_dbg(ds->dev, "%s\n", __func__); return 0; } +static int dsa_loop_get_sset_count(struct dsa_switch *ds) +{ + return __DSA_LOOP_CNT_MAX; +} + +static void dsa_loop_get_strings(struct dsa_switch *ds, int port, uint8_t *data) +{ + struct dsa_loop_priv *ps = ds->priv; + unsigned int i; + + for (i = 0; i < __DSA_LOOP_CNT_MAX; i++) + memcpy(data + i * ETH_GSTRING_LEN, + ps->ports[port].mib[i].name, ETH_GSTRING_LEN); +} + +static void dsa_loop_get_ethtool_stats(struct dsa_switch *ds, int port, + uint64_t *data) +{ + struct dsa_loop_priv *ps = ds->priv; + unsigned int i; + + for (i = 0; i < __DSA_LOOP_CNT_MAX; i++) + data[i] = ps->ports[port].mib[i].val; +} + static int dsa_loop_set_addr(struct dsa_switch *ds, u8 *addr) { dev_dbg(ds->dev, "%s\n", __func__); @@ -63,10 +121,17 @@ static int dsa_loop_phy_read(struct dsa_switch *ds, int port, int regnum) { struct dsa_loop_priv *ps = ds->priv; struct mii_bus *bus = ps->bus; + int ret; dev_dbg(ds->dev, "%s\n", __func__); - return mdiobus_read_nested(bus, ps->port_base + port, regnum); + ret = mdiobus_read_nested(bus, ps->port_base + port, regnum); + if (ret < 0) + ps->ports[port].mib[DSA_LOOP_PHY_READ_ERR].val++; + else + ps->ports[port].mib[DSA_LOOP_PHY_READ_OK].val++; + + return ret; } static int dsa_loop_phy_write(struct dsa_switch *ds, int port, @@ -74,10 +139,17 @@ static int dsa_loop_phy_write(struct dsa_switch *ds, int port, { struct dsa_loop_priv *ps = ds->priv; struct mii_bus *bus = ps->bus; + int ret; dev_dbg(ds->dev, "%s\n", __func__); - return mdiobus_write_nested(bus, ps->port_base + port, regnum, value); + ret = mdiobus_write_nested(bus, ps->port_base + port, regnum, value); + if (ret < 0) + ps->ports[port].mib[DSA_LOOP_PHY_WRITE_ERR].val++; + else + ps->ports[port].mib[DSA_LOOP_PHY_WRITE_OK].val++; + + return ret; } static int dsa_loop_port_bridge_join(struct dsa_switch *ds, int port, @@ -225,6 +297,9 @@ static int dsa_loop_port_vlan_dump(struct dsa_switch *ds, int port, static struct dsa_switch_ops dsa_loop_driver = { .get_tag_protocol = dsa_loop_get_protocol, .setup = dsa_loop_setup, + .get_strings = dsa_loop_get_strings, + .get_ethtool_stats = dsa_loop_get_ethtool_stats, + .get_sset_count = dsa_loop_get_sset_count, .set_addr = dsa_loop_set_addr, .phy_read = dsa_loop_phy_read, .phy_write = dsa_loop_phy_write, |