netdev: drivers should make ethtool_ops const
[deliverable/linux.git] / drivers / staging / sxg / sxg_ethtool.c
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1/**************************************************************************
2 *
3 * Copyright (C) 2000-2008 Alacritech, Inc. All rights reserved.
4 *
5 * Redistribution and use in source and binary forms, with or without
6 * modification, are permitted provided that the following conditions
7 * are met:
8 *
9 * 1. Redistributions of source code must retain the above copyright
10 * notice, this list of conditions and the following disclaimer.
11 * 2. Redistributions in binary form must reproduce the above
12 * copyright notice, this list of conditions and the following
13 * disclaimer in the documentation and/or other materials provided
14 * with the distribution.
15 *
16 * THIS SOFTWARE IS PROVIDED BY ALACRITECH, INC. ``AS IS'' AND ANY
17 * EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
18 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR
19 * PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL ALACRITECH, INC. OR
20 * CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
21 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
22 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF
23 * USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
24 * ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY,
25 * OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT
26 * OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF
27 * SUCH DAMAGE.
28 *
29 * The views and conclusions contained in the software and documentation
30 * are those of the authors and should not be interpreted as representing
31 * official policies, either expressed or implied, of Alacritech, Inc.
32 *
33 **************************************************************************/
34
35/*
36 * FILENAME: sxg_ethtool.c
37 *
38 * The ethtool support for SXG driver for Alacritech's 10Gbe products.
39 *
40 * NOTE: This is the standard, non-accelerated version of Alacritech's
41 * IS-NIC driver.
42 */
43#include <linux/kernel.h>
44#include <linux/errno.h>
45#include <linux/module.h>
46#include <linux/netdevice.h>
47#include <linux/etherdevice.h>
48#include <linux/ethtool.h>
49#include <linux/skbuff.h>
50#include <linux/pci.h>
51
52#include "sxg_os.h"
53#include "sxghw.h"
54#include "sxghif.h"
55#include "sxg.h"
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56
57struct sxg_nic_stats {
58 char stat_string[ETH_GSTRING_LEN];
59 int sizeof_stat;
60 int stat_offset;
61};
62
63#define SXG_NIC_STATS(m) sizeof(((struct adapter_t *)0)->m), \
64 offsetof(struct adapter_t, m)
65
66#define USER_VIEWABLE_EEPROM_SIZE 28
67
68static struct sxg_nic_stats sxg_nic_gstrings_stats[] = {
69 {"xmit_ring_0_full", SXG_NIC_STATS(Stats.XmtZeroFull)},
70
71 /* May be will need in future */
72/* {"dumb_xmit_broadcast_packets", SXG_NIC_STATS(Stats.DumbXmtBcastPkts)},
73 {"dumb_xmit_broadcast_bytes", SXG_NIC_STATS(Stats.DumbXmtBcastBytes)},
74 {"dumb_xmit_unicast_packets", SXG_NIC_STATS(Stats.DumbXmtUcastPkts)},
75 {"dumb_xmit_unicast_bytes", SXG_NIC_STATS(Stats.DumbXmtUcastBytes)},
76*/
77 {"xmit_queue_length", SXG_NIC_STATS(Stats.XmtQLen)},
78 {"memory_allocation_failure", SXG_NIC_STATS(Stats.NoMem)},
79 {"Interrupts", SXG_NIC_STATS(Stats.NumInts)},
80 {"false_interrupts", SXG_NIC_STATS(Stats.FalseInts)},
81 {"processed_data_queue_full", SXG_NIC_STATS(Stats.PdqFull)},
82 {"event_ring_full", SXG_NIC_STATS(Stats.EventRingFull)},
83 {"transport_checksum_error", SXG_NIC_STATS(Stats.TransportCsum)},
84 {"transport_underflow_error", SXG_NIC_STATS(Stats.TransportUflow)},
85 {"transport_header_length_error", SXG_NIC_STATS(Stats.TransportHdrLen)},
86 {"network_checksum_error", SXG_NIC_STATS(Stats.NetworkCsum)},
87 {"network_underflow_error", SXG_NIC_STATS(Stats.NetworkUflow)},
88 {"network_header_length_error", SXG_NIC_STATS(Stats.NetworkHdrLen)},
89 {"receive_parity_error", SXG_NIC_STATS(Stats.Parity)},
90 {"link_parity_error", SXG_NIC_STATS(Stats.LinkParity)},
91 {"link/data early_error", SXG_NIC_STATS(Stats.LinkEarly)},
92 {"buffer_overflow_error", SXG_NIC_STATS(Stats.LinkBufOflow)},
93 {"link_code_error", SXG_NIC_STATS(Stats.LinkCode)},
94 {"dribble nibble", SXG_NIC_STATS(Stats.LinkDribble)},
95 {"CRC_error", SXG_NIC_STATS(Stats.LinkCrc)},
96 {"link_overflow_error", SXG_NIC_STATS(Stats.LinkOflow)},
97 {"link_underflow_error", SXG_NIC_STATS(Stats.LinkUflow)},
98
99 /* May be need in future */
100/* {"dumb_rcv_broadcast_packets", SXG_NIC_STATS(Stats.DumbRcvBcastPkts)},
101 {"dumb_rcv_broadcast_bytes", SXG_NIC_STATS(Stats.DumbRcvBcastBytes)},
b040b07b 102*/ {"dumb_rcv_multicast_packets", SXG_NIC_STATS(Stats.DumbRcvMcastPkts)},
371d7a9e 103 {"dumb_rcv_multicast_bytes", SXG_NIC_STATS(Stats.DumbRcvMcastBytes)},
b040b07b 104/* {"dumb_rcv_unicast_packets", SXG_NIC_STATS(Stats.DumbRcvUcastPkts)},
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105 {"dumb_rcv_unicast_bytes", SXG_NIC_STATS(Stats.DumbRcvUcastBytes)},
106*/
107 {"no_sgl_buffer", SXG_NIC_STATS(Stats.NoSglBuf)},
108};
109
110#define SXG_NIC_STATS_LEN ARRAY_SIZE(sxg_nic_gstrings_stats)
111
112static inline void sxg_reg32_write(void __iomem *reg, u32 value, bool flush)
113{
114 writel(value, reg);
115 if (flush)
116 mb();
117}
118
119static inline void sxg_reg64_write(struct adapter_t *adapter, void __iomem *reg,
120 u64 value, u32 cpu)
121{
122 u32 value_high = (u32) (value >> 32);
123 u32 value_low = (u32) (value & 0x00000000FFFFFFFF);
124 unsigned long flags;
125
126 spin_lock_irqsave(&adapter->Bit64RegLock, flags);
127 writel(value_high, (void __iomem *)(&adapter->UcodeRegs[cpu].Upper));
128 writel(value_low, reg);
129 spin_unlock_irqrestore(&adapter->Bit64RegLock, flags);
130}
131
132static void
133sxg_nic_get_drvinfo(struct net_device *dev, struct ethtool_drvinfo *drvinfo)
134{
135 struct adapter_t *adapter = netdev_priv(dev);
136 strncpy(drvinfo->driver, sxg_driver_name, 32);
137 strncpy(drvinfo->version, SXG_DRV_VERSION, 32);
d9d578bf 138// strncpy(drvinfo->fw_version, SAHARA_UCODE_VERS_STRING, 32);
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139 strncpy(drvinfo->bus_info, pci_name(adapter->pcidev), 32);
140 /* TODO : Read the major and minor number of firmware. Is this
141 * from the FLASH/EEPROM or download file ?
142 */
143 /* LINSYS : Check if this is correct or if not find the right value
144 * Also check what is the right EEPROM length : EEPROM_SIZE_XFMR or EEPROM_SIZE_NO_XFMR
145 */
146}
147
148static int sxg_nic_set_settings(struct net_device *netdev,
149 struct ethtool_cmd *ecmd)
150{
151 /* No settings are applicable as we support only 10Gb/FIBRE_media */
152 return -EOPNOTSUPP;
153}
154
a7c0ea6e 155static void
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156sxg_nic_get_strings(struct net_device *netdev, u32 stringset, u8 * data)
157{
158 int index;
159
160 switch(stringset) {
a7c0ea6e 161 case ETH_SS_TEST:
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162 break;
163 case ETH_SS_STATS:
164 for (index = 0; index < SXG_NIC_STATS_LEN; index++) {
165 memcpy(data + index * ETH_GSTRING_LEN,
166 sxg_nic_gstrings_stats[index].stat_string,
167 ETH_GSTRING_LEN);
168 }
169 break;
170 }
171}
172
173static void
174sxg_nic_get_ethtool_stats(struct net_device *netdev,
175 struct ethtool_stats *stats, u64 * data)
176{
177 struct adapter_t *adapter = netdev_priv(netdev);
178 int index;
179 for (index = 0; index < SXG_NIC_STATS_LEN; index++) {
180 char *p = (char *)adapter +
181 sxg_nic_gstrings_stats[index].stat_offset;
182 data[index] = (sxg_nic_gstrings_stats[index].sizeof_stat ==
183 sizeof(u64)) ? *(u64 *) p : *(u32 *) p;
184 }
185}
186
187static int sxg_nic_get_sset_count(struct net_device *netdev, int sset)
188{
189 switch (sset) {
190 case ETH_SS_STATS:
191 return SXG_NIC_STATS_LEN;
192 default:
193 return -EOPNOTSUPP;
194 }
195}
196
197static int sxg_nic_get_settings(struct net_device *netdev,
198 struct ethtool_cmd *ecmd)
199{
200 struct adapter_t *adapter = netdev_priv(netdev);
201
202 ecmd->supported = SUPPORTED_10000baseT_Full;
203 ecmd->autoneg = AUTONEG_ENABLE; //VSS check This
204 ecmd->transceiver = XCVR_EXTERNAL; //VSS check This
205
206 /* For Fibre Channel */
207 ecmd->supported |= SUPPORTED_FIBRE;
208 ecmd->advertising = (ADVERTISED_10000baseT_Full |
209 ADVERTISED_FIBRE);
210 ecmd->port = PORT_FIBRE;
211
212
213 /* Link Speed */
214 if(adapter->LinkState & SXG_LINK_UP) {
215 ecmd->speed = SPEED_10000; //adapter->LinkSpeed;
216 ecmd->duplex = DUPLEX_FULL;
217 }
218 return 0;
219}
220
a7c0ea6e 221static u32 sxg_nic_get_rx_csum(struct net_device *netdev)
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222{
223 struct adapter_t *adapter = netdev_priv(netdev);
bbb18b97 224 return ((adapter->flags & SXG_RCV_IP_CSUM_ENABLED) &&
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225 (adapter->flags & SXG_RCV_TCP_CSUM_ENABLED));
226}
227
228static int sxg_nic_set_rx_csum(struct net_device *netdev, u32 data)
229{
230 struct adapter_t *adapter = netdev_priv(netdev);
231 if (data)
232 adapter->flags |= SXG_RCV_IP_CSUM_ENABLED;
233 else
234 adapter->flags &= ~SXG_RCV_IP_CSUM_ENABLED;
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235 /*
236 * We dont need to write to the card to do checksums.
237 * It does it anyways.
238 */
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239 return 0;
240}
241
242static int sxg_nic_get_regs_len(struct net_device *dev)
243{
244 return (SXG_HWREG_MEMSIZE + SXG_UCODEREG_MEMSIZE);
245}
246
247static void sxg_nic_get_regs(struct net_device *netdev,
248 struct ethtool_regs *regs, void *p)
249{
250 struct adapter_t *adapter = netdev_priv(netdev);
251 struct sxg_hw_regs *HwRegs = adapter->HwRegs;
252 struct sxg_ucode_regs *UcodeRegs = adapter->UcodeRegs;
253 u32 *buff = p;
254
255 memset(p, 0, (sizeof(struct sxg_hw_regs)+sizeof(struct sxg_ucode_regs)));
256 memcpy(buff, HwRegs, sizeof(struct sxg_hw_regs));
257 memcpy((buff+sizeof(struct sxg_hw_regs)), UcodeRegs, sizeof(struct sxg_ucode_regs));
258}
259
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260static int sxg_nic_get_eeprom_len(struct net_device *netdev)
261{
262 return (USER_VIEWABLE_EEPROM_SIZE);
263}
264
265static int sxg_nic_get_eeprom(struct net_device *netdev,
266 struct ethtool_eeprom *eeprom, u8 *bytes)
267{
268 struct adapter_t *adapter = netdev_priv(netdev);
269 struct sw_cfg_data *data;
270 unsigned long i, status;
271 dma_addr_t p_addr;
272
273 data = pci_alloc_consistent(adapter->pcidev, sizeof(struct sw_cfg_data),
274 &p_addr);
275 if(!data) {
276 /*
277 * We cant get even this much memory. Raise a hell
278 * Get out of here
279 */
280 printk(KERN_ERR"%s : Could not allocate memory for reading \
eb48d1f8 281 EEPROM\n", __func__);
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282 return -ENOMEM;
283 }
284
285 WRITE_REG(adapter->UcodeRegs[0].ConfigStat, SXG_CFG_TIMEOUT, TRUE);
286 WRITE_REG64(adapter, adapter->UcodeRegs[0].Config, p_addr, 0);
287 for(i=0; i<1000; i++) {
288 READ_REG(adapter->UcodeRegs[0].ConfigStat, status);
289 if (status != SXG_CFG_TIMEOUT)
290 break;
291 mdelay(1); /* Do we really need this */
292 }
293
294 memset(bytes, 0, eeprom->len);
295 memcpy(bytes, data->MacAddr[0].MacAddr, sizeof(struct sxg_config_mac));
296 memcpy(bytes+6, data->AtkFru.PartNum, 6);
297 memcpy(bytes+12, data->AtkFru.Revision, 2);
298 memcpy(bytes+14, data->AtkFru.Serial, 14);
299
300 return 0;
301}
302
0fc0b732 303const struct ethtool_ops sxg_nic_ethtool_ops = {
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304 .get_settings = sxg_nic_get_settings,
305 .set_settings = sxg_nic_set_settings,
306 .get_drvinfo = sxg_nic_get_drvinfo,
307 .get_regs_len = sxg_nic_get_regs_len,
308 .get_regs = sxg_nic_get_regs,
309 .get_link = ethtool_op_get_link,
559990c6 310// .get_wol = sxg_nic_get_wol,
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311 .get_eeprom_len = sxg_nic_get_eeprom_len,
312 .get_eeprom = sxg_nic_get_eeprom,
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313// .get_pauseparam = sxg_nic_get_pauseparam,
314// .set_pauseparam = sxg_nic_set_pauseparam,
315 .set_tx_csum = ethtool_op_set_tx_csum,
316 .get_sg = ethtool_op_get_sg,
317 .set_sg = ethtool_op_set_sg,
318// .get_tso = sxg_nic_get_tso,
319// .set_tso = sxg_nic_set_tso,
320// .self_test = sxg_nic_diag_test,
321 .get_strings = sxg_nic_get_strings,
322 .get_ethtool_stats = sxg_nic_get_ethtool_stats,
323 .get_sset_count = sxg_nic_get_sset_count,
324 .get_rx_csum = sxg_nic_get_rx_csum,
325 .set_rx_csum = sxg_nic_set_rx_csum,
326// .get_coalesce = sxg_nic_get_intr_coalesce,
327// .set_coalesce = sxg_nic_set_intr_coalesce,
328};
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