pch_can: fix 800k comms issue
[linux-2.6.git] / drivers / net / pasemi_mac_ethtool.c
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
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
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
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
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
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
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
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
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