cda5bf2fc50acf5b07406eff6ff488c532f67dbf
[linux-2.6.git] / drivers / net / benet / be_ethtool.c
1 /*
2  * Copyright (C) 2005 - 2009 ServerEngines
3  * All rights reserved.
4  *
5  * This program is free software; you can redistribute it and/or
6  * modify it under the terms of the GNU General Public License version 2
7  * as published by the Free Software Foundation.  The full GNU General
8  * Public License is included in this distribution in the file called COPYING.
9  *
10  * Contact Information:
11  * linux-drivers@serverengines.com
12  *
13  * ServerEngines
14  * 209 N. Fair Oaks Ave
15  * Sunnyvale, CA 94085
16  */
17
18 #include "be.h"
19 #include "be_cmds.h"
20 #include <linux/ethtool.h>
21
22 struct be_ethtool_stat {
23         char desc[ETH_GSTRING_LEN];
24         int type;
25         int size;
26         int offset;
27 };
28
29 enum {NETSTAT, PORTSTAT, MISCSTAT, DRVSTAT, ERXSTAT};
30 #define FIELDINFO(_struct, field) FIELD_SIZEOF(_struct, field), \
31                                         offsetof(_struct, field)
32 #define NETSTAT_INFO(field)     #field, NETSTAT,\
33                                         FIELDINFO(struct net_device_stats,\
34                                                 field)
35 #define DRVSTAT_INFO(field)     #field, DRVSTAT,\
36                                         FIELDINFO(struct be_drvr_stats, field)
37 #define MISCSTAT_INFO(field)    #field, MISCSTAT,\
38                                         FIELDINFO(struct be_rxf_stats, field)
39 #define PORTSTAT_INFO(field)    #field, PORTSTAT,\
40                                         FIELDINFO(struct be_port_rxf_stats, \
41                                                 field)
42 #define ERXSTAT_INFO(field)     #field, ERXSTAT,\
43                                         FIELDINFO(struct be_erx_stats, field)
44
45 static const struct be_ethtool_stat et_stats[] = {
46         {NETSTAT_INFO(rx_packets)},
47         {NETSTAT_INFO(tx_packets)},
48         {NETSTAT_INFO(rx_bytes)},
49         {NETSTAT_INFO(tx_bytes)},
50         {NETSTAT_INFO(rx_errors)},
51         {NETSTAT_INFO(tx_errors)},
52         {NETSTAT_INFO(rx_dropped)},
53         {NETSTAT_INFO(tx_dropped)},
54         {DRVSTAT_INFO(be_tx_reqs)},
55         {DRVSTAT_INFO(be_tx_stops)},
56         {DRVSTAT_INFO(be_fwd_reqs)},
57         {DRVSTAT_INFO(be_tx_wrbs)},
58         {DRVSTAT_INFO(be_polls)},
59         {DRVSTAT_INFO(be_tx_events)},
60         {DRVSTAT_INFO(be_rx_events)},
61         {DRVSTAT_INFO(be_tx_compl)},
62         {DRVSTAT_INFO(be_rx_compl)},
63         {DRVSTAT_INFO(be_ethrx_post_fail)},
64         {DRVSTAT_INFO(be_802_3_dropped_frames)},
65         {DRVSTAT_INFO(be_802_3_malformed_frames)},
66         {DRVSTAT_INFO(be_tx_rate)},
67         {DRVSTAT_INFO(be_rx_rate)},
68         {PORTSTAT_INFO(rx_unicast_frames)},
69         {PORTSTAT_INFO(rx_multicast_frames)},
70         {PORTSTAT_INFO(rx_broadcast_frames)},
71         {PORTSTAT_INFO(rx_crc_errors)},
72         {PORTSTAT_INFO(rx_alignment_symbol_errors)},
73         {PORTSTAT_INFO(rx_pause_frames)},
74         {PORTSTAT_INFO(rx_control_frames)},
75         {PORTSTAT_INFO(rx_in_range_errors)},
76         {PORTSTAT_INFO(rx_out_range_errors)},
77         {PORTSTAT_INFO(rx_frame_too_long)},
78         {PORTSTAT_INFO(rx_address_match_errors)},
79         {PORTSTAT_INFO(rx_vlan_mismatch)},
80         {PORTSTAT_INFO(rx_dropped_too_small)},
81         {PORTSTAT_INFO(rx_dropped_too_short)},
82         {PORTSTAT_INFO(rx_dropped_header_too_small)},
83         {PORTSTAT_INFO(rx_dropped_tcp_length)},
84         {PORTSTAT_INFO(rx_dropped_runt)},
85         {PORTSTAT_INFO(rx_fifo_overflow)},
86         {PORTSTAT_INFO(rx_input_fifo_overflow)},
87         {PORTSTAT_INFO(rx_ip_checksum_errs)},
88         {PORTSTAT_INFO(rx_tcp_checksum_errs)},
89         {PORTSTAT_INFO(rx_udp_checksum_errs)},
90         {PORTSTAT_INFO(rx_non_rss_packets)},
91         {PORTSTAT_INFO(rx_ipv4_packets)},
92         {PORTSTAT_INFO(rx_ipv6_packets)},
93         {PORTSTAT_INFO(tx_unicastframes)},
94         {PORTSTAT_INFO(tx_multicastframes)},
95         {PORTSTAT_INFO(tx_broadcastframes)},
96         {PORTSTAT_INFO(tx_pauseframes)},
97         {PORTSTAT_INFO(tx_controlframes)},
98         {MISCSTAT_INFO(rx_drops_no_pbuf)},
99         {MISCSTAT_INFO(rx_drops_no_txpb)},
100         {MISCSTAT_INFO(rx_drops_no_erx_descr)},
101         {MISCSTAT_INFO(rx_drops_no_tpre_descr)},
102         {MISCSTAT_INFO(rx_drops_too_many_frags)},
103         {MISCSTAT_INFO(rx_drops_invalid_ring)},
104         {MISCSTAT_INFO(forwarded_packets)},
105         {MISCSTAT_INFO(rx_drops_mtu)},
106         {ERXSTAT_INFO(rx_drops_no_fragments)},
107 };
108 #define ETHTOOL_STATS_NUM ARRAY_SIZE(et_stats)
109
110 static void
111 be_get_drvinfo(struct net_device *netdev, struct ethtool_drvinfo *drvinfo)
112 {
113         struct be_adapter *adapter = netdev_priv(netdev);
114
115         strcpy(drvinfo->driver, DRV_NAME);
116         strcpy(drvinfo->version, DRV_VER);
117         strncpy(drvinfo->fw_version, adapter->fw_ver, FW_VER_LEN);
118         strcpy(drvinfo->bus_info, pci_name(adapter->pdev));
119         drvinfo->testinfo_len = 0;
120         drvinfo->regdump_len = 0;
121         drvinfo->eedump_len = 0;
122 }
123
124 static int
125 be_get_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
126 {
127         struct be_adapter *adapter = netdev_priv(netdev);
128         struct be_eq_obj *rx_eq = &adapter->rx_eq;
129         struct be_eq_obj *tx_eq = &adapter->tx_eq;
130
131         coalesce->rx_coalesce_usecs = rx_eq->cur_eqd;
132         coalesce->rx_coalesce_usecs_high = rx_eq->max_eqd;
133         coalesce->rx_coalesce_usecs_low = rx_eq->min_eqd;
134
135         coalesce->tx_coalesce_usecs = tx_eq->cur_eqd;
136         coalesce->tx_coalesce_usecs_high = tx_eq->max_eqd;
137         coalesce->tx_coalesce_usecs_low = tx_eq->min_eqd;
138
139         coalesce->use_adaptive_rx_coalesce = rx_eq->enable_aic;
140         coalesce->use_adaptive_tx_coalesce = tx_eq->enable_aic;
141
142         return 0;
143 }
144
145 /*
146  * This routine is used to set interrup coalescing delay
147  */
148 static int
149 be_set_coalesce(struct net_device *netdev, struct ethtool_coalesce *coalesce)
150 {
151         struct be_adapter *adapter = netdev_priv(netdev);
152         struct be_eq_obj *rx_eq = &adapter->rx_eq;
153         struct be_eq_obj *tx_eq = &adapter->tx_eq;
154         u32 tx_max, tx_min, tx_cur;
155         u32 rx_max, rx_min, rx_cur;
156         int status = 0;
157
158         if (coalesce->use_adaptive_tx_coalesce == 1)
159                 return -EINVAL;
160
161         /* if AIC is being turned on now, start with an EQD of 0 */
162         if (rx_eq->enable_aic == 0 &&
163                 coalesce->use_adaptive_rx_coalesce == 1) {
164                 rx_eq->cur_eqd = 0;
165         }
166         rx_eq->enable_aic = coalesce->use_adaptive_rx_coalesce;
167
168         rx_max = coalesce->rx_coalesce_usecs_high;
169         rx_min = coalesce->rx_coalesce_usecs_low;
170         rx_cur = coalesce->rx_coalesce_usecs;
171
172         tx_max = coalesce->tx_coalesce_usecs_high;
173         tx_min = coalesce->tx_coalesce_usecs_low;
174         tx_cur = coalesce->tx_coalesce_usecs;
175
176         if (tx_cur > BE_MAX_EQD)
177                 tx_cur = BE_MAX_EQD;
178         if (tx_eq->cur_eqd != tx_cur) {
179                 status = be_cmd_modify_eqd(adapter, tx_eq->q.id, tx_cur);
180                 if (!status)
181                         tx_eq->cur_eqd = tx_cur;
182         }
183
184         if (rx_eq->enable_aic) {
185                 if (rx_max > BE_MAX_EQD)
186                         rx_max = BE_MAX_EQD;
187                 if (rx_min > rx_max)
188                         rx_min = rx_max;
189                 rx_eq->max_eqd = rx_max;
190                 rx_eq->min_eqd = rx_min;
191                 if (rx_eq->cur_eqd > rx_max)
192                         rx_eq->cur_eqd = rx_max;
193                 if (rx_eq->cur_eqd < rx_min)
194                         rx_eq->cur_eqd = rx_min;
195         } else {
196                 if (rx_cur > BE_MAX_EQD)
197                         rx_cur = BE_MAX_EQD;
198                 if (rx_eq->cur_eqd != rx_cur) {
199                         status = be_cmd_modify_eqd(adapter, rx_eq->q.id,
200                                         rx_cur);
201                         if (!status)
202                                 rx_eq->cur_eqd = rx_cur;
203                 }
204         }
205         return 0;
206 }
207
208 static u32 be_get_rx_csum(struct net_device *netdev)
209 {
210         struct be_adapter *adapter = netdev_priv(netdev);
211
212         return adapter->rx_csum;
213 }
214
215 static int be_set_rx_csum(struct net_device *netdev, uint32_t data)
216 {
217         struct be_adapter *adapter = netdev_priv(netdev);
218
219         if (data)
220                 adapter->rx_csum = true;
221         else
222                 adapter->rx_csum = false;
223
224         return 0;
225 }
226
227 static void
228 be_get_ethtool_stats(struct net_device *netdev,
229                 struct ethtool_stats *stats, uint64_t *data)
230 {
231         struct be_adapter *adapter = netdev_priv(netdev);
232         struct be_drvr_stats *drvr_stats = &adapter->stats.drvr_stats;
233         struct be_hw_stats *hw_stats = hw_stats_from_cmd(adapter->stats.cmd.va);
234         struct be_rxf_stats *rxf_stats = &hw_stats->rxf;
235         struct be_port_rxf_stats *port_stats =
236                         &rxf_stats->port[adapter->port_num];
237         struct net_device_stats *net_stats = &adapter->stats.net_stats;
238         struct be_erx_stats *erx_stats = &hw_stats->erx;
239         void *p = NULL;
240         int i;
241
242         for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
243                 switch (et_stats[i].type) {
244                 case NETSTAT:
245                         p = net_stats;
246                         break;
247                 case DRVSTAT:
248                         p = drvr_stats;
249                         break;
250                 case PORTSTAT:
251                         p = port_stats;
252                         break;
253                 case MISCSTAT:
254                         p = rxf_stats;
255                         break;
256                 case ERXSTAT: /* Currently only one ERX stat is provided */
257                         p = (u32 *)erx_stats + adapter->rx_obj.q.id;
258                         break;
259                 }
260
261                 p = (u8 *)p + et_stats[i].offset;
262                 data[i] = (et_stats[i].size == sizeof(u64)) ?
263                                 *(u64 *)p: *(u32 *)p;
264         }
265
266         return;
267 }
268
269 static void
270 be_get_stat_strings(struct net_device *netdev, uint32_t stringset,
271                 uint8_t *data)
272 {
273         int i;
274         switch (stringset) {
275         case ETH_SS_STATS:
276                 for (i = 0; i < ETHTOOL_STATS_NUM; i++) {
277                         memcpy(data, et_stats[i].desc, ETH_GSTRING_LEN);
278                         data += ETH_GSTRING_LEN;
279                 }
280                 break;
281         }
282 }
283
284 static int be_get_stats_count(struct net_device *netdev)
285 {
286         return ETHTOOL_STATS_NUM;
287 }
288
289 static int be_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
290 {
291         ecmd->speed = SPEED_10000;
292         ecmd->duplex = DUPLEX_FULL;
293         ecmd->autoneg = AUTONEG_DISABLE;
294         return 0;
295 }
296
297 static void
298 be_get_ringparam(struct net_device *netdev, struct ethtool_ringparam *ring)
299 {
300         struct be_adapter *adapter = netdev_priv(netdev);
301
302         ring->rx_max_pending = adapter->rx_obj.q.len;
303         ring->tx_max_pending = adapter->tx_obj.q.len;
304
305         ring->rx_pending = atomic_read(&adapter->rx_obj.q.used);
306         ring->tx_pending = atomic_read(&adapter->tx_obj.q.used);
307 }
308
309 static void
310 be_get_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
311 {
312         struct be_adapter *adapter = netdev_priv(netdev);
313
314         be_cmd_get_flow_control(adapter, &ecmd->tx_pause, &ecmd->rx_pause);
315         ecmd->autoneg = 0;
316 }
317
318 static int
319 be_set_pauseparam(struct net_device *netdev, struct ethtool_pauseparam *ecmd)
320 {
321         struct be_adapter *adapter = netdev_priv(netdev);
322         int status;
323
324         if (ecmd->autoneg != 0)
325                 return -EINVAL;
326
327         status = be_cmd_set_flow_control(adapter, ecmd->tx_pause,
328                         ecmd->rx_pause);
329         if (!status)
330                 dev_warn(&adapter->pdev->dev, "Pause param set failed.\n");
331
332         return status;
333 }
334
335 static int
336 be_do_flash(struct net_device *netdev, struct ethtool_flash *efl)
337 {
338         struct be_adapter *adapter = netdev_priv(netdev);
339         char file_name[ETHTOOL_FLASH_MAX_FILENAME];
340         u32 region;
341
342         file_name[ETHTOOL_FLASH_MAX_FILENAME - 1] = 0;
343         strcpy(file_name, efl->data);
344         region = efl->region;
345
346         return be_load_fw(adapter, file_name);
347 }
348
349 const struct ethtool_ops be_ethtool_ops = {
350         .get_settings = be_get_settings,
351         .get_drvinfo = be_get_drvinfo,
352         .get_link = ethtool_op_get_link,
353         .get_coalesce = be_get_coalesce,
354         .set_coalesce = be_set_coalesce,
355         .get_ringparam = be_get_ringparam,
356         .get_pauseparam = be_get_pauseparam,
357         .set_pauseparam = be_set_pauseparam,
358         .get_rx_csum = be_get_rx_csum,
359         .set_rx_csum = be_set_rx_csum,
360         .get_tx_csum = ethtool_op_get_tx_csum,
361         .set_tx_csum = ethtool_op_set_tx_hw_csum,
362         .get_sg = ethtool_op_get_sg,
363         .set_sg = ethtool_op_set_sg,
364         .get_tso = ethtool_op_get_tso,
365         .set_tso = ethtool_op_set_tso,
366         .get_strings = be_get_stat_strings,
367         .get_stats_count = be_get_stats_count,
368         .get_ethtool_stats = be_get_ethtool_stats,
369         .flash_device = be_do_flash,
370 };