[PATCH v3 13/15] net: dsa/mv88e6123_61_65: Add support for reading switch registers
From: Guenter Roeck <linux@roeck-us.net>
Date: 2014-10-29 17:45:59
Also in:
lkml
Subsystem:
networking drivers, networking [dsa], the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Vladimir Oltean, Linus Torvalds
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> --- v3: - No change v2: - No change drivers/net/dsa/mv88e6123_61_65.c | 2 ++ drivers/net/dsa/mv88e6xxx.c | 24 ++++++++++++++++++++++++ drivers/net/dsa/mv88e6xxx.h | 3 +++ 3 files changed, 29 insertions(+)
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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1.9.1