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drivers: net: cpsw: add support to dump ALE table via ethtool register dump

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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>
This commit is contained in:
Mugunthan V N 2014-07-22 23:25:07 +05:30 committed by David S. Miller
parent 63502b8d01
commit 52c4f0ec66
3 changed files with 37 additions and 3 deletions
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24
drivers/net/ethernet/ti/cpsw.c
View file

@ -1675,14 +1675,34 @@ static const struct net_device_ops cpsw_netdev_ops = {
.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 @@ static const struct ethtool_ops cpsw_ethtool_ops = {
.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,

12
drivers/net/ethernet/ti/cpsw_ale.c
View file

@ -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 @@ int cpsw_ale_destroy(struct cpsw_ale *ale)
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;
}
}

4
drivers/net/ethernet/ti/cpsw_ale.h
View file

@ -80,6 +80,9 @@ enum cpsw_ale_port_state {
#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_del_vlan(struct cpsw_ale *ale, u16 vid, int port);
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