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 
16 static 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 
54 static u32
pasemi_mac_ethtool_get_msglevel(struct net_device * netdev)55 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
56 {
57 	struct pasemi_mac *mac = netdev_priv(netdev);
58 	return mac->msg_enable;
59 }
60 
61 static void
pasemi_mac_ethtool_set_msglevel(struct net_device * netdev,u32 level)62 pasemi_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 
70 static void
pasemi_mac_ethtool_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ering)71 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
72 				 struct ethtool_ringparam *ering)
73 {
74 	struct pasemi_mac *mac = netdev_priv(netdev);
75 
76 	ering->tx_max_pending = TX_RING_SIZE/2;
77 	ering->tx_pending = RING_USED(mac->tx)/2;
78 	ering->rx_max_pending = RX_RING_SIZE/4;
79 	ering->rx_pending = RING_USED(mac->rx)/4;
80 }
81 
pasemi_mac_get_sset_count(struct net_device * netdev,int sset)82 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
83 {
84 	switch (sset) {
85 	case ETH_SS_STATS:
86 		return ARRAY_SIZE(ethtool_stats_keys);
87 	default:
88 		return -EOPNOTSUPP;
89 	}
90 }
91 
pasemi_mac_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)92 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
93 		struct ethtool_stats *stats, u64 *data)
94 {
95 	struct pasemi_mac *mac = netdev_priv(netdev);
96 	int i;
97 
98 	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
99 			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
100 	for (i = 0; i < 32; i++)
101 		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
102 }
103 
pasemi_mac_get_strings(struct net_device * netdev,u32 stringset,u8 * data)104 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
105 				   u8 *data)
106 {
107 	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
108 }
109 
110 const struct ethtool_ops pasemi_mac_ethtool_ops = {
111 	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
112 	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
113 	.get_link		= ethtool_op_get_link,
114 	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
115 	.get_strings		= pasemi_mac_get_strings,
116 	.get_sset_count		= pasemi_mac_get_sset_count,
117 	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
118 	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
119 	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
120 };
121 
122