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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, write to the Free Software
17  * Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA  02111-1307 USA
18  */
19 
20 
21 #include <linux/netdevice.h>
22 #include <linux/ethtool.h>
23 #include <linux/pci.h>
24 #include <linux/inet_lro.h>
25 
26 #include <asm/pasemi_dma.h>
27 #include "pasemi_mac.h"
28 
29 static struct {
30 	const char str[ETH_GSTRING_LEN];
31 } ethtool_stats_keys[] = {
32 	{ "rx-drops" },
33 	{ "rx-bytes" },
34 	{ "rx-packets" },
35 	{ "rx-broadcast-packets" },
36 	{ "rx-multicast-packets" },
37 	{ "rx-crc-errors" },
38 	{ "rx-undersize-errors" },
39 	{ "rx-oversize-errors" },
40 	{ "rx-short-fragment-errors" },
41 	{ "rx-jabber-errors" },
42 	{ "rx-64-byte-packets" },
43 	{ "rx-65-127-byte-packets" },
44 	{ "rx-128-255-byte-packets" },
45 	{ "rx-256-511-byte-packets" },
46 	{ "rx-512-1023-byte-packets" },
47 	{ "rx-1024-1518-byte-packets" },
48 	{ "rx-pause-frames" },
49 	{ "tx-bytes" },
50 	{ "tx-packets" },
51 	{ "tx-broadcast-packets" },
52 	{ "tx-multicast-packets" },
53 	{ "tx-collisions" },
54 	{ "tx-late-collisions" },
55 	{ "tx-excessive-collisions" },
56 	{ "tx-crc-errors" },
57 	{ "tx-undersize-errors" },
58 	{ "tx-oversize-errors" },
59 	{ "tx-64-byte-packets" },
60 	{ "tx-65-127-byte-packets" },
61 	{ "tx-128-255-byte-packets" },
62 	{ "tx-256-511-byte-packets" },
63 	{ "tx-512-1023-byte-packets" },
64 	{ "tx-1024-1518-byte-packets" },
65 };
66 
67 static int
pasemi_mac_ethtool_get_settings(struct net_device * netdev,struct ethtool_cmd * cmd)68 pasemi_mac_ethtool_get_settings(struct net_device *netdev,
69 			       struct ethtool_cmd *cmd)
70 {
71 	struct pasemi_mac *mac = netdev_priv(netdev);
72 	struct phy_device *phydev = mac->phydev;
73 
74 	if (!phydev)
75 		return -EOPNOTSUPP;
76 
77 	return phy_ethtool_gset(phydev, cmd);
78 }
79 
80 static int
pasemi_mac_ethtool_set_settings(struct net_device * netdev,struct ethtool_cmd * cmd)81 pasemi_mac_ethtool_set_settings(struct net_device *netdev,
82 			       struct ethtool_cmd *cmd)
83 {
84 	struct pasemi_mac *mac = netdev_priv(netdev);
85 	struct phy_device *phydev = mac->phydev;
86 
87 	if (!phydev)
88 		return -EOPNOTSUPP;
89 
90 	return phy_ethtool_sset(phydev, cmd);
91 }
92 
93 static u32
pasemi_mac_ethtool_get_msglevel(struct net_device * netdev)94 pasemi_mac_ethtool_get_msglevel(struct net_device *netdev)
95 {
96 	struct pasemi_mac *mac = netdev_priv(netdev);
97 	return mac->msg_enable;
98 }
99 
100 static void
pasemi_mac_ethtool_set_msglevel(struct net_device * netdev,u32 level)101 pasemi_mac_ethtool_set_msglevel(struct net_device *netdev,
102 				u32 level)
103 {
104 	struct pasemi_mac *mac = netdev_priv(netdev);
105 	mac->msg_enable = level;
106 }
107 
108 
109 static void
pasemi_mac_ethtool_get_ringparam(struct net_device * netdev,struct ethtool_ringparam * ering)110 pasemi_mac_ethtool_get_ringparam(struct net_device *netdev,
111 				 struct ethtool_ringparam *ering)
112 {
113 	struct pasemi_mac *mac = netdev_priv(netdev);
114 
115 	ering->tx_max_pending = TX_RING_SIZE/2;
116 	ering->tx_pending = RING_USED(mac->tx)/2;
117 	ering->rx_max_pending = RX_RING_SIZE/4;
118 	ering->rx_pending = RING_USED(mac->rx)/4;
119 }
120 
pasemi_mac_get_sset_count(struct net_device * netdev,int sset)121 static int pasemi_mac_get_sset_count(struct net_device *netdev, int sset)
122 {
123 	switch (sset) {
124 	case ETH_SS_STATS:
125 		return ARRAY_SIZE(ethtool_stats_keys);
126 	default:
127 		return -EOPNOTSUPP;
128 	}
129 }
130 
pasemi_mac_get_ethtool_stats(struct net_device * netdev,struct ethtool_stats * stats,u64 * data)131 static void pasemi_mac_get_ethtool_stats(struct net_device *netdev,
132 		struct ethtool_stats *stats, u64 *data)
133 {
134 	struct pasemi_mac *mac = netdev_priv(netdev);
135 	int i;
136 
137 	data[0] = pasemi_read_dma_reg(PAS_DMA_RXINT_RCMDSTA(mac->dma_if))
138 			>> PAS_DMA_RXINT_RCMDSTA_DROPS_S;
139 	for (i = 0; i < 32; i++)
140 		data[1+i] = pasemi_read_mac_reg(mac->dma_if, PAS_MAC_RMON(i));
141 }
142 
pasemi_mac_get_strings(struct net_device * netdev,u32 stringset,u8 * data)143 static void pasemi_mac_get_strings(struct net_device *netdev, u32 stringset,
144 				   u8 *data)
145 {
146 	memcpy(data, ethtool_stats_keys, sizeof(ethtool_stats_keys));
147 }
148 
149 const struct ethtool_ops pasemi_mac_ethtool_ops = {
150 	.get_settings		= pasemi_mac_ethtool_get_settings,
151 	.set_settings		= pasemi_mac_ethtool_set_settings,
152 	.get_msglevel		= pasemi_mac_ethtool_get_msglevel,
153 	.set_msglevel		= pasemi_mac_ethtool_set_msglevel,
154 	.get_link		= ethtool_op_get_link,
155 	.get_ringparam          = pasemi_mac_ethtool_get_ringparam,
156 	.get_strings		= pasemi_mac_get_strings,
157 	.get_sset_count		= pasemi_mac_get_sset_count,
158 	.get_ethtool_stats	= pasemi_mac_get_ethtool_stats,
159 };
160 
161