1 /*
2  * Copyright (C) 2006-2008 PA Semi, Inc
3  *
4  * Ethtool hooks for the PA Semi PWRficient onchip 1G/10G Ethernet MACs
5  *
6  * This program is free software; you can redistribute it and/or modify
7  * it under the terms of the GNU General Public License version 2 as
8  * published by the Free Software Foundation.
9  *
10  * This program is distributed in the hope that it will be useful,
11  * but WITHOUT ANY WARRANTY; without even the implied warranty of
12  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
13  * GNU General Public License for more details.
14  *
15  * You should have received a copy of the GNU General Public License
16  * along with this program; if not, see <http://www.gnu.org/licenses/>.
17  */
18 
19 
20 #include <linux/netdevice.h>
21 #include <linux/ethtool.h>
22 #include <linux/pci.h>
23 
24 #include <asm/pasemi_dma.h>
25 #include "pasemi_mac.h"
26 
27 static struct {
28 	const char str[ETH_GSTRING_LEN];
29 } ethtool_stats_keys[] = {
30 	{ "rx-drops" },
31 	{ "rx-bytes" },
32 	{ "rx-packets" },
33 	{ "rx-broadcast-packets" },
34 	{ "rx-multicast-packets" },
35 	{ "rx-crc-errors" },
36 	{ "rx-undersize-errors" },
37 	{ "rx-oversize-errors" },
38 	{ "rx-short-fragment-errors" },
39 	{ "rx-jabber-errors" },
40 	{ "rx-64-byte-packets" },
41 	{ "rx-65-127-byte-packets" },
42 	{ "rx-128-255-byte-packets" },
43 	{ "rx-256-511-byte-packets" },
44 	{ "rx-512-1023-byte-packets" },
45 	{ "rx-1024-1518-byte-packets" },
46 	{ "rx-pause-frames" },
47 	{ "tx-bytes" },
48 	{ "tx-packets" },
49 	{ "tx-broadcast-packets" },
50 	{ "tx-multicast-packets" },
51 	{ "tx-collisions" },
52 	{ "tx-late-collisions" },
53 	{ "tx-excessive-collisions" },
54 	{ "tx-crc-errors" },
55 	{ "tx-undersize-errors" },
56 	{ "tx-oversize-errors" },
57 	{ "tx-64-byte-packets" },
58 	{ "tx-65-127-byte-packets" },
59 	{ "tx-128-255-byte-packets" },
60 	{ "tx-256-511-byte-packets" },
61 	{ "tx-512-1023-byte-packets" },
62 	{ "tx-1024-1518-byte-packets" },
63 };
64 
65 static u32
66 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
67 {
68 	struct pasemi_mac *mac = netdev_priv(netdev);
69 	return mac->msg_enable;
70 }
71 
72 static void
73 pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
74 				u32 level)
75 {
76 	struct pasemi_mac *mac = netdev_priv(netdev);
77 	mac->msg_enable = level;
78 }
79 
80 
81 static void
82 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
83 				 struct ethtool_ringparam *ering)
84 {
85 	struct pasemi_mac *mac = netdev_priv(netdev);
86 
87 	ering->tx_max_pending = TX_RING_SIZE/2;
88 	ering->tx_pending = RING_USED(mac->tx)/2;
89 	ering->rx_max_pending = RX_RING_SIZE/4;
90 	ering->rx_pending = RING_USED(mac->rx)/4;
91 }
92 
93 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
94 {
95 	switch (sset) {
96 	case ETH_SS_STATS:
97 		return ARRAY_SIZE(ethtool_stats_keys);
98 	default:
99 		return -EOPNOTSUPP;
100 	}
101 }
102 
103 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
104 		struct ethtool_stats *stats, u64 *data)
105 {
106 	struct pasemi_mac *mac = netdev_priv(netdev);
107 	int i;
108 
109 	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
110 			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
111 	for (i = 0; i < 32; i++)
112 		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
113 }
114 
115 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
116 				   u8 *data)
117 {
118 	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
119 }
120 
121 const struct ethtool_ops pasemi_mac_ethtool_ops = {
122 	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
123 	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
124 	.get_link		= ethtool_op_get_link,
125 	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
126 	.get_strings		= pasemi_mac_get_strings,
127 	.get_sset_count		= pasemi_mac_get_sset_count,
128 	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
129 	.get_link_ksettings	= phy_ethtool_get_link_ksettings,
130 	.set_link_ksettings	= phy_ethtool_set_link_ksettings,
131 };
132 
133