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Merge branch 'dsa-loop-Driver-updates' 

Florian Fainelli says:

====================
net: dsa: loop: Driver updates

This patch series updates drivers/net/dsa/dsa_loop.c to provide more useful
coverage of the DSA APIs and how we mangle the CPU ports ethtool statistics
to include its switch-facing port counters.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
David S. Miller 2017-06-16 12:43:49 -04:00
parent 5f881503a4 484c01720d
commit 5f886eefbb
1 changed files with 82 additions and 12 deletions
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94
drivers/net/dsa/dsa_loop.c
View File

@ -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,
@ -293,15 +368,6 @@ static struct mdio_driver dsa_loop_drv = {
#define NUM_FIXED_PHYS (DSA_LOOP_NUM_PORTS - 2)
static void unregister_fixed_phys(void)
{
unsigned int i;
for (i = 0; i < NUM_FIXED_PHYS; i++)
if (phydevs[i])
fixed_phy_unregister(phydevs[i]);
}
static int __init dsa_loop_init(void)
{
struct fixed_phy_status status = {
@ -320,8 +386,12 @@ module_init(dsa_loop_init);
static void __exit dsa_loop_exit(void)
{
unsigned int i;
mdio_driver_unregister(&dsa_loop_drv);
unregister_fixed_phys();
for (i = 0; i < NUM_FIXED_PHYS; i++)
if (phydevs[i])
fixed_phy_unregister(phydevs[i]);
}
module_exit(dsa_loop_exit);