stmmac: support Reg_9 to get HW level information
For GMAC newer than 3.40a there is a new register (Reg_9) that provides the
status of all modules of the transmit and receive paths and FIFO status.
These can be exposed via ethtool.
Signed-off-by: Giuseppe Cavallaro <peppe.cavallaro@st.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
index 2e51b81..4c6486c 100644
--- a/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
+++ b/drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
@@ -136,6 +136,31 @@
STMMAC_STAT(irq_pcs_ane_n),
STMMAC_STAT(irq_pcs_link_n),
STMMAC_STAT(irq_rgmii_n),
+ /* DEBUG */
+ STMMAC_STAT(mtl_tx_status_fifo_full),
+ STMMAC_STAT(mtl_tx_fifo_not_empty),
+ STMMAC_STAT(mmtl_fifo_ctrl),
+ STMMAC_STAT(mtl_tx_fifo_read_ctrl_write),
+ STMMAC_STAT(mtl_tx_fifo_read_ctrl_wait),
+ STMMAC_STAT(mtl_tx_fifo_read_ctrl_read),
+ STMMAC_STAT(mtl_tx_fifo_read_ctrl_idle),
+ STMMAC_STAT(mac_tx_in_pause),
+ STMMAC_STAT(mac_tx_frame_ctrl_xfer),
+ STMMAC_STAT(mac_tx_frame_ctrl_idle),
+ STMMAC_STAT(mac_tx_frame_ctrl_wait),
+ STMMAC_STAT(mac_tx_frame_ctrl_pause),
+ STMMAC_STAT(mac_gmii_tx_proto_engine),
+ STMMAC_STAT(mtl_rx_fifo_fill_level_full),
+ STMMAC_STAT(mtl_rx_fifo_fill_above_thresh),
+ STMMAC_STAT(mtl_rx_fifo_fill_below_thresh),
+ STMMAC_STAT(mtl_rx_fifo_fill_level_empty),
+ STMMAC_STAT(mtl_rx_fifo_read_ctrl_flush),
+ STMMAC_STAT(mtl_rx_fifo_read_ctrl_read_data),
+ STMMAC_STAT(mtl_rx_fifo_read_ctrl_status),
+ STMMAC_STAT(mtl_rx_fifo_read_ctrl_idle),
+ STMMAC_STAT(mtl_rx_fifo_ctrl_active),
+ STMMAC_STAT(mac_rx_frame_ctrl_fifo),
+ STMMAC_STAT(mac_gmii_rx_proto_engine),
};
#define STMMAC_STATS_LEN ARRAY_SIZE(stmmac_gstrings_stats)
@@ -497,6 +522,11 @@
if (val)
priv->xstats.phy_eee_wakeup_error_n = val;
}
+
+ if ((priv->hw->mac->debug) &&
+ (priv->synopsys_id >= DWMAC_CORE_3_50))
+ priv->hw->mac->debug(priv->ioaddr,
+ (void *)&priv->xstats);
}
for (i = 0; i < STMMAC_STATS_LEN; i++) {
char *p = (char *)priv + stmmac_gstrings_stats[i].stat_offset;