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,struct kernel_ethtool_ringparam * kernel_ering,struct netlink_ext_ack * extack)71 pasemi_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
pasemi_mac_get_sset_count(struct net_device * netdev,int sset)84 static 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
pasemi_mac_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)94 static 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
pasemi_mac_get_strings(struct net_device * netdev,u32 stringset,u8 * data)106 static 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
112 const 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