1// SPDX-License-Identifier: GPL-2.0-or-later
  2/*
  3 * Applied Micro X-Gene SoC Ethernet v2 Driver
  4 *
  5 * Copyright (c) 2017, Applied Micro Circuits Corporation
  6 * Author(s): Iyappan Subramanian <isubramanian@apm.com>
  7 *	      Keyur Chudgar <kchudgar@apm.com>
  8 */
  9
 10#include "main.h"
 11
 12#define XGE_STAT(m)		{ #m, offsetof(struct xge_pdata, stats.m) }
 13#define XGE_EXTD_STAT(m, n)					\
 14	{							\
 15		#m,						\
 16		n,						\
 17		0						\
 18	}
 19
 20static const struct xge_gstrings_stats gstrings_stats[] = {
 21	XGE_STAT(rx_packets),
 22	XGE_STAT(tx_packets),
 23	XGE_STAT(rx_bytes),
 24	XGE_STAT(tx_bytes),
 25	XGE_STAT(rx_errors)
 26};
 27
 28static struct xge_gstrings_extd_stats gstrings_extd_stats[] = {
 29	XGE_EXTD_STAT(tx_rx_64b_frame_cntr, TR64),
 30	XGE_EXTD_STAT(tx_rx_127b_frame_cntr, TR127),
 31	XGE_EXTD_STAT(tx_rx_255b_frame_cntr, TR255),
 32	XGE_EXTD_STAT(tx_rx_511b_frame_cntr, TR511),
 33	XGE_EXTD_STAT(tx_rx_1023b_frame_cntr, TR1K),
 34	XGE_EXTD_STAT(tx_rx_1518b_frame_cntr, TRMAX),
 35	XGE_EXTD_STAT(tx_rx_1522b_frame_cntr, TRMGV),
 36	XGE_EXTD_STAT(rx_fcs_error_cntr, RFCS),
 37	XGE_EXTD_STAT(rx_multicast_pkt_cntr, RMCA),
 38	XGE_EXTD_STAT(rx_broadcast_pkt_cntr, RBCA),
 39	XGE_EXTD_STAT(rx_ctrl_frame_pkt_cntr, RXCF),
 40	XGE_EXTD_STAT(rx_pause_frame_pkt_cntr, RXPF),
 41	XGE_EXTD_STAT(rx_unk_opcode_cntr, RXUO),
 42	XGE_EXTD_STAT(rx_align_err_cntr, RALN),
 43	XGE_EXTD_STAT(rx_frame_len_err_cntr, RFLR),
 44	XGE_EXTD_STAT(rx_code_err_cntr, RCDE),
 45	XGE_EXTD_STAT(rx_carrier_sense_err_cntr, RCSE),
 46	XGE_EXTD_STAT(rx_undersize_pkt_cntr, RUND),
 47	XGE_EXTD_STAT(rx_oversize_pkt_cntr, ROVR),
 48	XGE_EXTD_STAT(rx_fragments_cntr, RFRG),
 49	XGE_EXTD_STAT(rx_jabber_cntr, RJBR),
 50	XGE_EXTD_STAT(rx_dropped_pkt_cntr, RDRP),
 51	XGE_EXTD_STAT(tx_multicast_pkt_cntr, TMCA),
 52	XGE_EXTD_STAT(tx_broadcast_pkt_cntr, TBCA),
 53	XGE_EXTD_STAT(tx_pause_ctrl_frame_cntr, TXPF),
 54	XGE_EXTD_STAT(tx_defer_pkt_cntr, TDFR),
 55	XGE_EXTD_STAT(tx_excv_defer_pkt_cntr, TEDF),
 56	XGE_EXTD_STAT(tx_single_col_pkt_cntr, TSCL),
 57	XGE_EXTD_STAT(tx_multi_col_pkt_cntr, TMCL),
 58	XGE_EXTD_STAT(tx_late_col_pkt_cntr, TLCL),
 59	XGE_EXTD_STAT(tx_excv_col_pkt_cntr, TXCL),
 60	XGE_EXTD_STAT(tx_total_col_cntr, TNCL),
 61	XGE_EXTD_STAT(tx_pause_frames_hnrd_cntr, TPFH),
 62	XGE_EXTD_STAT(tx_drop_frame_cntr, TDRP),
 63	XGE_EXTD_STAT(tx_jabber_frame_cntr, TJBR),
 64	XGE_EXTD_STAT(tx_fcs_error_cntr, TFCS),
 65	XGE_EXTD_STAT(tx_ctrl_frame_cntr, TXCF),
 66	XGE_EXTD_STAT(tx_oversize_frame_cntr, TOVR),
 67	XGE_EXTD_STAT(tx_undersize_frame_cntr, TUND),
 68	XGE_EXTD_STAT(tx_fragments_cntr, TFRG)
 69};
 70
 71#define XGE_STATS_LEN		ARRAY_SIZE(gstrings_stats)
 72#define XGE_EXTD_STATS_LEN	ARRAY_SIZE(gstrings_extd_stats)
 73
 74static void xge_mac_get_extd_stats(struct xge_pdata *pdata)
 75{
 76	u32 data;
 77	int i;
 78
 79	for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
 80		data = xge_rd_csr(pdata, gstrings_extd_stats[i].addr);
 81		gstrings_extd_stats[i].value += data;
 82	}
 83}
 84
 85static void xge_get_drvinfo(struct net_device *ndev,
 86			    struct ethtool_drvinfo *info)
 87{
 88	struct xge_pdata *pdata = netdev_priv(ndev);
 89	struct platform_device *pdev = pdata->pdev;
 90
 91	strcpy(info->driver, "xgene-enet-v2");
 92	sprintf(info->bus_info, "%s", pdev->name);
 93}
 94
 95static void xge_get_strings(struct net_device *ndev, u32 stringset, u8 *data)
 96{
 97	u8 *p = data;
 98	int i;
 99
100	if (stringset != ETH_SS_STATS)
101		return;
102
103	for (i = 0; i < XGE_STATS_LEN; i++) {
104		memcpy(p, gstrings_stats[i].name, ETH_GSTRING_LEN);
105		p += ETH_GSTRING_LEN;
106	}
107
108	for (i = 0; i < XGE_EXTD_STATS_LEN; i++) {
109		memcpy(p, gstrings_extd_stats[i].name, ETH_GSTRING_LEN);
110		p += ETH_GSTRING_LEN;
111	}
112}
113
114static int xge_get_sset_count(struct net_device *ndev, int sset)
115{
116	if (sset != ETH_SS_STATS)
117		return -EINVAL;
118
119	return XGE_STATS_LEN + XGE_EXTD_STATS_LEN;
120}
121
122static void xge_get_ethtool_stats(struct net_device *ndev,
123				  struct ethtool_stats *dummy,
124				  u64 *data)
125{
126	void *pdata = netdev_priv(ndev);
127	int i;
128
129	for (i = 0; i < XGE_STATS_LEN; i++)
130		*data++ = *(u64 *)(pdata + gstrings_stats[i].offset);
131
132	xge_mac_get_extd_stats(pdata);
133
134	for (i = 0; i < XGE_EXTD_STATS_LEN; i++)
135		*data++ = gstrings_extd_stats[i].value;
136}
137
138static int xge_get_link_ksettings(struct net_device *ndev,
139				  struct ethtool_link_ksettings *cmd)
140{
141	struct phy_device *phydev = ndev->phydev;
142
143	if (!phydev)
144		return -ENODEV;
145
146	phy_ethtool_ksettings_get(phydev, cmd);
147
148	return 0;
149}
150
151static int xge_set_link_ksettings(struct net_device *ndev,
152				  const struct ethtool_link_ksettings *cmd)
153{
154	struct phy_device *phydev = ndev->phydev;
155
156	if (!phydev)
157		return -ENODEV;
158
159	return phy_ethtool_ksettings_set(phydev, cmd);
160}
161
162static const struct ethtool_ops xge_ethtool_ops = {
163	.get_drvinfo = xge_get_drvinfo,
164	.get_link = ethtool_op_get_link,
165	.get_strings = xge_get_strings,
166	.get_sset_count = xge_get_sset_count,
167	.get_ethtool_stats = xge_get_ethtool_stats,
168	.get_link_ksettings = xge_get_link_ksettings,
169	.set_link_ksettings = xge_set_link_ksettings,
170};
171
172void xge_set_ethtool_ops(struct net_device *ndev)
173{
174	ndev->ethtool_ops = &xge_ethtool_ops;
175}