drivers: net: cpsw: add support to dump ALE table via ethtool register dump
Add support to view addresses added by the driver and learnt by the
hardware from ALE table via ethtool register dump interface.
Signed-off-by: Mugunthan V N <mugunthanvnm@ti.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/ti/cpsw.c b/drivers/net/ethernet/ti/cpsw.c
index ae6379a..60f925d 100644
--- a/drivers/net/ethernet/ti/cpsw.c
+++ b/drivers/net/ethernet/ti/cpsw.c
@@ -1675,14 +1675,34 @@
.ndo_vlan_rx_kill_vid = cpsw_ndo_vlan_rx_kill_vid,
};
+static int cpsw_get_regs_len(struct net_device *ndev)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+
+ return priv->data.ale_entries * ALE_ENTRY_WORDS * sizeof(u32);
+}
+
+static void cpsw_get_regs(struct net_device *ndev,
+ struct ethtool_regs *regs, void *p)
+{
+ struct cpsw_priv *priv = netdev_priv(ndev);
+ u32 *reg = p;
+
+ /* update CPSW IP version */
+ regs->version = priv->version;
+
+ cpsw_ale_dump(priv->ale, reg);
+}
+
static void cpsw_get_drvinfo(struct net_device *ndev,
struct ethtool_drvinfo *info)
{
struct cpsw_priv *priv = netdev_priv(ndev);
- strlcpy(info->driver, "TI CPSW Driver v1.0", sizeof(info->driver));
+ strlcpy(info->driver, "cpsw", sizeof(info->driver));
strlcpy(info->version, "1.0", sizeof(info->version));
strlcpy(info->bus_info, priv->pdev->name, sizeof(info->bus_info));
+ info->regdump_len = cpsw_get_regs_len(ndev);
}
static u32 cpsw_get_msglevel(struct net_device *ndev)
@@ -1790,6 +1810,8 @@
.get_ethtool_stats = cpsw_get_ethtool_stats,
.get_wol = cpsw_get_wol,
.set_wol = cpsw_set_wol,
+ .get_regs_len = cpsw_get_regs_len,
+ .get_regs = cpsw_get_regs,
};
static void cpsw_slave_init(struct cpsw_slave *slave, struct cpsw_priv *priv,
diff --git a/drivers/net/ethernet/ti/cpsw_ale.c b/drivers/net/ethernet/ti/cpsw_ale.c
index 7f89306..0579b22 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.c
+++ b/drivers/net/ethernet/ti/cpsw_ale.c
@@ -25,8 +25,6 @@
#include "cpsw_ale.h"
#define BITMASK(bits) (BIT(bits) - 1)
-#define ALE_ENTRY_BITS 68
-#define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
#define ALE_VERSION_MAJOR(rev) ((rev >> 8) & 0xff)
#define ALE_VERSION_MINOR(rev) (rev & 0xff)
@@ -763,3 +761,13 @@
kfree(ale);
return 0;
}
+
+void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data)
+{
+ int i;
+
+ for (i = 0; i < ale->params.ale_entries; i++) {
+ cpsw_ale_read(ale, i, data);
+ data += ALE_ENTRY_WORDS;
+ }
+}
diff --git a/drivers/net/ethernet/ti/cpsw_ale.h b/drivers/net/ethernet/ti/cpsw_ale.h
index de409c3..31cf43c 100644
--- a/drivers/net/ethernet/ti/cpsw_ale.h
+++ b/drivers/net/ethernet/ti/cpsw_ale.h
@@ -80,6 +80,9 @@
#define ALE_MCAST_FWD_LEARN 2
#define ALE_MCAST_FWD_2 3
+#define ALE_ENTRY_BITS 68
+#define ALE_ENTRY_WORDS DIV_ROUND_UP(ALE_ENTRY_BITS, 32)
+
struct cpsw_ale *cpsw_ale_create(struct cpsw_ale_params *params);
int cpsw_ale_destroy(struct cpsw_ale *ale);
@@ -104,5 +107,6 @@
int cpsw_ale_control_get(struct cpsw_ale *ale, int port, int control);
int cpsw_ale_control_set(struct cpsw_ale *ale, int port,
int control, int value);
+void cpsw_ale_dump(struct cpsw_ale *ale, u32 *data);
#endif