1// SPDX-License-Identifier: GPL-2.0-only
2/*
3 * Copyright (C) 2006-2008 PA Semi, Inc
4 *
5 * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
6 */
7
8
9#include <linux/netdevice.h>
10#include <linux/ethtool.h>
11#include <linux/pci.h>
12
13#include <asm/pasemi_dma.h>
14#include "pasemi_mac.h"
15
16static struct {
17	const char str[ETH_GSTRING_LEN];
18} ethtool_stats_keys[] = {
19	{ "rx-drops" },
20	{ "rx-bytes" },
21	{ "rx-packets" },
22	{ "rx-broadcast-packets" },
23	{ "rx-multicast-packets" },
24	{ "rx-crc-errors" },
25	{ "rx-undersize-errors" },
26	{ "rx-oversize-errors" },
27	{ "rx-short-fragment-errors" },
28	{ "rx-jabber-errors" },
29	{ "rx-64-byte-packets" },
30	{ "rx-65-127-byte-packets" },
31	{ "rx-128-255-byte-packets" },
32	{ "rx-256-511-byte-packets" },
33	{ "rx-512-1023-byte-packets" },
34	{ "rx-1024-1518-byte-packets" },
35	{ "rx-pause-frames" },
36	{ "tx-bytes" },
37	{ "tx-packets" },
38	{ "tx-broadcast-packets" },
39	{ "tx-multicast-packets" },
40	{ "tx-collisions" },
41	{ "tx-late-collisions" },
42	{ "tx-excessive-collisions" },
43	{ "tx-crc-errors" },
44	{ "tx-undersize-errors" },
45	{ "tx-oversize-errors" },
46	{ "tx-64-byte-packets" },
47	{ "tx-65-127-byte-packets" },
48	{ "tx-128-255-byte-packets" },
49	{ "tx-256-511-byte-packets" },
50	{ "tx-512-1023-byte-packets" },
51	{ "tx-1024-1518-byte-packets" },
52};
53
54static u32
55pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
56{
57	struct pasemi_mac *mac = netdev_priv(netdev);
58	return mac->msg_enable;
59}
60
61static void
62pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
63				u32 level)
64{
65	struct pasemi_mac *mac = netdev_priv(netdev);
66	mac->msg_enable = level;
67}
68
69
70static void
71pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
72				 struct ethtool_ringparam *ering,
73				 struct kernel_ethtool_ringparam *kernel_ering,
74				 struct netlink_ext_ack *extack)
75{
76	struct pasemi_mac *mac = netdev_priv(netdev);
77
78	ering->tx_max_pending = TX_RING_SIZE/2;
79	ering->tx_pending = RING_USED(mac->tx)/2;
80	ering->rx_max_pending = RX_RING_SIZE/4;
81	ering->rx_pending = RING_USED(mac->rx)/4;
82}
83
84static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
85{
86	switch (sset) {
87	case ETH_SS_STATS:
88		return ARRAY_SIZE(ethtool_stats_keys);
89	default:
90		return -EOPNOTSUPP;
91	}
92}
93
94static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
95		struct ethtool_stats *stats, u64 *data)
96{
97	struct pasemi_mac *mac = netdev_priv(netdev);
98	int i;
99
100	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
101			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
102	for (i = 0; i < 32; i++)
103		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
104}
105
106static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
107				   u8 *data)
108{
109	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
110}
111
112const struct ethtool_ops pasemi_mac_ethtool_ops = {
113	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
114	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
115	.get_link		= ethtool_op_get_link,
116	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
117	.get_strings		= pasemi_mac_get_strings,
118	.get_sset_count		= pasemi_mac_get_sset_count,
119	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
120	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
121	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
122};
123
124