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authorGuenter Roeck <linux@roeck-us.net>2014-10-29 10:45:05 -0700
committerDavid S. Miller <davem@davemloft.net>2014-10-30 14:54:11 -0400
commita1ab91f3deadc398675de3b9ff297c1f66b5b1f9 (patch)
treed85190c26ad4f89ef7887032231f4de1b3fa7fea /drivers/net/dsa
parent3d762a0f0ab9cb4a6b5993db3ce56c92f9f90ab2 (diff)
downloadop-kernel-dev-a1ab91f3deadc398675de3b9ff297c1f66b5b1f9.zip
op-kernel-dev-a1ab91f3deadc398675de3b9ff297c1f66b5b1f9.tar.gz
net: dsa/mv88e6123_61_65: Add support for reading switch registers
The infrastructure can now report switch registers to ethtool. Add support for it to the mv88e6123_61_65 driver. Signed-off-by: Guenter Roeck <linux@roeck-us.net> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/dsa')
-rw-r--r--drivers/net/dsa/mv88e6123_61_65.c2
-rw-r--r--drivers/net/dsa/mv88e6xxx.c24
-rw-r--r--drivers/net/dsa/mv88e6xxx.h3
3 files changed, 29 insertions, 0 deletions
diff --git a/drivers/net/dsa/mv88e6123_61_65.c b/drivers/net/dsa/mv88e6123_61_65.c
index 9f43c9b..e2d2e37 100644
--- a/drivers/net/dsa/mv88e6123_61_65.c
+++ b/drivers/net/dsa/mv88e6123_61_65.c
@@ -470,6 +470,8 @@ struct dsa_switch_driver mv88e6123_61_65_switch_driver = {
#ifdef CONFIG_NET_DSA_HWMON
.get_temp = mv88e6123_61_65_get_temp,
#endif
+ .get_regs_len = mv88e6xxx_get_regs_len,
+ .get_regs = mv88e6xxx_get_regs,
};
MODULE_ALIAS("platform:mv88e6123");
diff --git a/drivers/net/dsa/mv88e6xxx.c b/drivers/net/dsa/mv88e6xxx.c
index 8e1090b..c071fde 100644
--- a/drivers/net/dsa/mv88e6xxx.c
+++ b/drivers/net/dsa/mv88e6xxx.c
@@ -499,6 +499,30 @@ void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
mutex_unlock(&ps->stats_mutex);
}
+int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port)
+{
+ return 32 * sizeof(u16);
+}
+
+void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
+ struct ethtool_regs *regs, void *_p)
+{
+ u16 *p = _p;
+ int i;
+
+ regs->version = 0;
+
+ memset(p, 0xff, 32 * sizeof(u16));
+
+ for (i = 0; i < 32; i++) {
+ int ret;
+
+ ret = mv88e6xxx_reg_read(ds, REG_PORT(port), i);
+ if (ret >= 0)
+ p[i] = ret;
+ }
+}
+
static int __init mv88e6xxx_init(void)
{
#if IS_ENABLED(CONFIG_NET_DSA_MV88E6131)
diff --git a/drivers/net/dsa/mv88e6xxx.h b/drivers/net/dsa/mv88e6xxx.h
index 29feed0..a0780b0 100644
--- a/drivers/net/dsa/mv88e6xxx.h
+++ b/drivers/net/dsa/mv88e6xxx.h
@@ -78,6 +78,9 @@ void mv88e6xxx_get_strings(struct dsa_switch *ds,
void mv88e6xxx_get_ethtool_stats(struct dsa_switch *ds,
int nr_stats, struct mv88e6xxx_hw_stat *stats,
int port, uint64_t *data);
+int mv88e6xxx_get_regs_len(struct dsa_switch *ds, int port);
+void mv88e6xxx_get_regs(struct dsa_switch *ds, int port,
+ struct ethtool_regs *regs, void *_p);
extern struct dsa_switch_driver mv88e6131_switch_driver;
extern struct dsa_switch_driver mv88e6123_61_65_switch_driver;
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