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net: enetc: include MAC Merge / FP registers in register dump

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These have been useful in debugging various problems related to frame
preemption, so make them available through ethtool --register-dump for
later too.

Signed-off-by: Vladimir Oltean <vladimir.oltean@nxp.com>
Reviewed-by: Simon Horman <simon.horman@corigine.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Vladimir Oltean 2023-04-18 14:14:54 +03:00 committed by Jakub Kicinski
parent 827145392a
commit 16a2c76344
1 changed files with 17 additions and 0 deletions
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17
drivers/net/ethernet/freescale/enetc/enetc_ethtool.c
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@ -32,6 +32,12 @@ static const u32 enetc_port_regs[] = {
ENETC_PM0_CMD_CFG, ENETC_PM0_MAXFRM, ENETC_PM0_IF_MODE
};
static const u32 enetc_port_mm_regs[] = {
ENETC_MMCSR, ENETC_PFPMR, ENETC_PTCFPR(0), ENETC_PTCFPR(1),
ENETC_PTCFPR(2), ENETC_PTCFPR(3), ENETC_PTCFPR(4), ENETC_PTCFPR(5),
ENETC_PTCFPR(6), ENETC_PTCFPR(7),
};
static int enetc_get_reglen(struct net_device *ndev)
{
struct enetc_ndev_priv *priv = netdev_priv(ndev);
@ -45,6 +51,9 @@ static int enetc_get_reglen(struct net_device *ndev)
if (hw->port)
len += ARRAY_SIZE(enetc_port_regs);
if (hw->port && !!(priv->si->hw_features & ENETC_SI_F_QBU))
len += ARRAY_SIZE(enetc_port_mm_regs);
len *= sizeof(u32) * 2; /* store 2 entries per reg: addr and value */
return len;
@ -90,6 +99,14 @@ static void enetc_get_regs(struct net_device *ndev, struct ethtool_regs *regs,
*buf++ = addr;
*buf++ = enetc_rd(hw, addr);
}
if (priv->si->hw_features & ENETC_SI_F_QBU) {
for (i = 0; i < ARRAY_SIZE(enetc_port_mm_regs); i++) {
addr = ENETC_PORT_BASE + enetc_port_mm_regs[i];
*buf++ = addr;
*buf++ = enetc_rd(hw, addr);
}
}
}
static const struct {