net:wireless:bcmdhd: rename bcmsdh_remove & bcmsdh_probe
[linux-2.6.git] / drivers / net / ucc_geth_ethtool.c
1 /*
2  * Copyright (c) 2007 Freescale Semiconductor, Inc. All rights reserved.
3  *
4  * Description: QE UCC Gigabit Ethernet Ethtool API Set
5  *
6  * Author: Li Yang <leoli@freescale.com>
7  *
8  * Limitation:
9  * Can only get/set settings of the first queue.
10  * Need to re-open the interface manually after changing some parameters.
11  *
12  * This program is free software; you can redistribute  it and/or modify it
13  * under  the terms of  the GNU General  Public License as published by the
14  * Free Software Foundation;  either version 2 of the  License, or (at your
15  * option) any later version.
16  */
17
18 #include <linux/kernel.h>
19 #include <linux/init.h>
20 #include <linux/errno.h>
21 #include <linux/stddef.h>
22 #include <linux/interrupt.h>
23 #include <linux/netdevice.h>
24 #include <linux/etherdevice.h>
25 #include <linux/skbuff.h>
26 #include <linux/spinlock.h>
27 #include <linux/mm.h>
28 #include <linux/delay.h>
29 #include <linux/dma-mapping.h>
30 #include <linux/ethtool.h>
31 #include <linux/mii.h>
32 #include <linux/phy.h>
33
34 #include <asm/io.h>
35 #include <asm/irq.h>
36 #include <asm/uaccess.h>
37 #include <asm/types.h>
38
39 #include "ucc_geth.h"
40
41 static char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
42         "tx-64-frames",
43         "tx-65-127-frames",
44         "tx-128-255-frames",
45         "rx-64-frames",
46         "rx-65-127-frames",
47         "rx-128-255-frames",
48         "tx-bytes-ok",
49         "tx-pause-frames",
50         "tx-multicast-frames",
51         "tx-broadcast-frames",
52         "rx-frames",
53         "rx-bytes-ok",
54         "rx-bytes-all",
55         "rx-multicast-frames",
56         "rx-broadcast-frames",
57         "stats-counter-carry",
58         "stats-counter-mask",
59         "rx-dropped-frames",
60 };
61
62 static char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
63         "tx-single-collision",
64         "tx-multiple-collision",
65         "tx-late-collsion",
66         "tx-aborted-frames",
67         "tx-lost-frames",
68         "tx-carrier-sense-errors",
69         "tx-frames-ok",
70         "tx-excessive-differ-frames",
71         "tx-256-511-frames",
72         "tx-512-1023-frames",
73         "tx-1024-1518-frames",
74         "tx-jumbo-frames",
75 };
76
77 static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
78         "rx-crc-errors",
79         "rx-alignment-errors",
80         "rx-in-range-length-errors",
81         "rx-out-of-range-length-errors",
82         "rx-too-long-frames",
83         "rx-runt",
84         "rx-very-long-event",
85         "rx-symbol-errors",
86         "rx-busy-drop-frames",
87         "reserved",
88         "reserved",
89         "rx-mismatch-drop-frames",
90         "rx-small-than-64",
91         "rx-256-511-frames",
92         "rx-512-1023-frames",
93         "rx-1024-1518-frames",
94         "rx-jumbo-frames",
95         "rx-mac-error-loss",
96         "rx-pause-frames",
97         "reserved",
98         "rx-vlan-removed",
99         "rx-vlan-replaced",
100         "rx-vlan-inserted",
101         "rx-ip-checksum-errors",
102 };
103
104 #define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
105 #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
106 #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
107
108 static int
109 uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
110 {
111         struct ucc_geth_private *ugeth = netdev_priv(netdev);
112         struct phy_device *phydev = ugeth->phydev;
113         struct ucc_geth_info *ug_info = ugeth->ug_info;
114
115         if (!phydev)
116                 return -ENODEV;
117
118         ecmd->maxtxpkt = 1;
119         ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
120
121         return phy_ethtool_gset(phydev, ecmd);
122 }
123
124 static int
125 uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
126 {
127         struct ucc_geth_private *ugeth = netdev_priv(netdev);
128         struct phy_device *phydev = ugeth->phydev;
129
130         if (!phydev)
131                 return -ENODEV;
132
133         return phy_ethtool_sset(phydev, ecmd);
134 }
135
136 static void
137 uec_get_pauseparam(struct net_device *netdev,
138                      struct ethtool_pauseparam *pause)
139 {
140         struct ucc_geth_private *ugeth = netdev_priv(netdev);
141
142         pause->autoneg = ugeth->phydev->autoneg;
143
144         if (ugeth->ug_info->receiveFlowControl)
145                 pause->rx_pause = 1;
146         if (ugeth->ug_info->transmitFlowControl)
147                 pause->tx_pause = 1;
148 }
149
150 static int
151 uec_set_pauseparam(struct net_device *netdev,
152                      struct ethtool_pauseparam *pause)
153 {
154         struct ucc_geth_private *ugeth = netdev_priv(netdev);
155         int ret = 0;
156
157         ugeth->ug_info->receiveFlowControl = pause->rx_pause;
158         ugeth->ug_info->transmitFlowControl = pause->tx_pause;
159
160         if (ugeth->phydev->autoneg) {
161                 if (netif_running(netdev)) {
162                         /* FIXME: automatically restart */
163                         printk(KERN_INFO
164                                 "Please re-open the interface.\n");
165                 }
166         } else {
167                 struct ucc_geth_info *ug_info = ugeth->ug_info;
168
169                 ret = init_flow_control_params(ug_info->aufc,
170                                         ug_info->receiveFlowControl,
171                                         ug_info->transmitFlowControl,
172                                         ug_info->pausePeriod,
173                                         ug_info->extensionField,
174                                         &ugeth->uccf->uf_regs->upsmr,
175                                         &ugeth->ug_regs->uempr,
176                                         &ugeth->ug_regs->maccfg1);
177         }
178
179         return ret;
180 }
181
182 static uint32_t
183 uec_get_msglevel(struct net_device *netdev)
184 {
185         struct ucc_geth_private *ugeth = netdev_priv(netdev);
186         return ugeth->msg_enable;
187 }
188
189 static void
190 uec_set_msglevel(struct net_device *netdev, uint32_t data)
191 {
192         struct ucc_geth_private *ugeth = netdev_priv(netdev);
193         ugeth->msg_enable = data;
194 }
195
196 static int
197 uec_get_regs_len(struct net_device *netdev)
198 {
199         return sizeof(struct ucc_geth);
200 }
201
202 static void
203 uec_get_regs(struct net_device *netdev,
204                struct ethtool_regs *regs, void *p)
205 {
206         int i;
207         struct ucc_geth_private *ugeth = netdev_priv(netdev);
208         u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
209         u32 *buff = p;
210
211         for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
212                 buff[i] = in_be32(&ug_regs[i]);
213 }
214
215 static void
216 uec_get_ringparam(struct net_device *netdev,
217                     struct ethtool_ringparam *ring)
218 {
219         struct ucc_geth_private *ugeth = netdev_priv(netdev);
220         struct ucc_geth_info *ug_info = ugeth->ug_info;
221         int queue = 0;
222
223         ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
224         ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
225         ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
226         ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
227
228         ring->rx_pending = ug_info->bdRingLenRx[queue];
229         ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
230         ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
231         ring->tx_pending = ug_info->bdRingLenTx[queue];
232 }
233
234 static int
235 uec_set_ringparam(struct net_device *netdev,
236                     struct ethtool_ringparam *ring)
237 {
238         struct ucc_geth_private *ugeth = netdev_priv(netdev);
239         struct ucc_geth_info *ug_info = ugeth->ug_info;
240         int queue = 0, ret = 0;
241
242         if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
243                 printk("%s: RxBD ring size must be no smaller than %d.\n",
244                                 netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN);
245                 return -EINVAL;
246         }
247         if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
248                 printk("%s: RxBD ring size must be multiple of %d.\n",
249                         netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
250                 return -EINVAL;
251         }
252         if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
253                 printk("%s: TxBD ring size must be no smaller than %d.\n",
254                                 netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN);
255                 return -EINVAL;
256         }
257
258         ug_info->bdRingLenRx[queue] = ring->rx_pending;
259         ug_info->bdRingLenTx[queue] = ring->tx_pending;
260
261         if (netif_running(netdev)) {
262                 /* FIXME: restart automatically */
263                 printk(KERN_INFO
264                         "Please re-open the interface.\n");
265         }
266
267         return ret;
268 }
269
270 static int uec_get_sset_count(struct net_device *netdev, int sset)
271 {
272         struct ucc_geth_private *ugeth = netdev_priv(netdev);
273         u32 stats_mode = ugeth->ug_info->statisticsMode;
274         int len = 0;
275
276         switch (sset) {
277         case ETH_SS_STATS:
278                 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
279                         len += UEC_HW_STATS_LEN;
280                 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
281                         len += UEC_TX_FW_STATS_LEN;
282                 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
283                         len += UEC_RX_FW_STATS_LEN;
284
285                 return len;
286
287         default:
288                 return -EOPNOTSUPP;
289         }
290 }
291
292 static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
293 {
294         struct ucc_geth_private *ugeth = netdev_priv(netdev);
295         u32 stats_mode = ugeth->ug_info->statisticsMode;
296
297         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
298                 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
299                                 ETH_GSTRING_LEN);
300                 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
301         }
302         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
303                 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
304                                 ETH_GSTRING_LEN);
305                 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
306         }
307         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
308                 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
309                                 ETH_GSTRING_LEN);
310 }
311
312 static void uec_get_ethtool_stats(struct net_device *netdev,
313                 struct ethtool_stats *stats, uint64_t *data)
314 {
315         struct ucc_geth_private *ugeth = netdev_priv(netdev);
316         u32 stats_mode = ugeth->ug_info->statisticsMode;
317         u32 __iomem *base;
318         int i, j = 0;
319
320         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
321                 if (ugeth->ug_regs)
322                         base = (u32 __iomem *)&ugeth->ug_regs->tx64;
323                 else
324                         base = NULL;
325
326                 for (i = 0; i < UEC_HW_STATS_LEN; i++)
327                         data[j++] = base ? in_be32(&base[i]) : 0;
328         }
329         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
330                 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
331                 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
332                         data[j++] = base ? in_be32(&base[i]) : 0;
333         }
334         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
335                 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
336                 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
337                         data[j++] = base ? in_be32(&base[i]) : 0;
338         }
339 }
340
341 static int uec_nway_reset(struct net_device *netdev)
342 {
343         struct ucc_geth_private *ugeth = netdev_priv(netdev);
344
345         return phy_start_aneg(ugeth->phydev);
346 }
347
348 /* Report driver information */
349 static void
350 uec_get_drvinfo(struct net_device *netdev,
351                        struct ethtool_drvinfo *drvinfo)
352 {
353         strncpy(drvinfo->driver, DRV_NAME, 32);
354         strncpy(drvinfo->version, DRV_VERSION, 32);
355         strncpy(drvinfo->fw_version, "N/A", 32);
356         strncpy(drvinfo->bus_info, "QUICC ENGINE", 32);
357         drvinfo->eedump_len = 0;
358         drvinfo->regdump_len = uec_get_regs_len(netdev);
359 }
360
361 #ifdef CONFIG_PM
362
363 static void uec_get_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
364 {
365         struct ucc_geth_private *ugeth = netdev_priv(netdev);
366         struct phy_device *phydev = ugeth->phydev;
367
368         if (phydev && phydev->irq)
369                 wol->supported |= WAKE_PHY;
370         if (qe_alive_during_sleep())
371                 wol->supported |= WAKE_MAGIC;
372
373         wol->wolopts = ugeth->wol_en;
374 }
375
376 static int uec_set_wol(struct net_device *netdev, struct ethtool_wolinfo *wol)
377 {
378         struct ucc_geth_private *ugeth = netdev_priv(netdev);
379         struct phy_device *phydev = ugeth->phydev;
380
381         if (wol->wolopts & ~(WAKE_PHY | WAKE_MAGIC))
382                 return -EINVAL;
383         else if (wol->wolopts & WAKE_PHY && (!phydev || !phydev->irq))
384                 return -EINVAL;
385         else if (wol->wolopts & WAKE_MAGIC && !qe_alive_during_sleep())
386                 return -EINVAL;
387
388         ugeth->wol_en = wol->wolopts;
389         device_set_wakeup_enable(&netdev->dev, ugeth->wol_en);
390
391         return 0;
392 }
393
394 #else
395 #define uec_get_wol NULL
396 #define uec_set_wol NULL
397 #endif /* CONFIG_PM */
398
399 static const struct ethtool_ops uec_ethtool_ops = {
400         .get_settings           = uec_get_settings,
401         .set_settings           = uec_set_settings,
402         .get_drvinfo            = uec_get_drvinfo,
403         .get_regs_len           = uec_get_regs_len,
404         .get_regs               = uec_get_regs,
405         .get_msglevel           = uec_get_msglevel,
406         .set_msglevel           = uec_set_msglevel,
407         .nway_reset             = uec_nway_reset,
408         .get_link               = ethtool_op_get_link,
409         .get_ringparam          = uec_get_ringparam,
410         .set_ringparam          = uec_set_ringparam,
411         .get_pauseparam         = uec_get_pauseparam,
412         .set_pauseparam         = uec_set_pauseparam,
413         .get_sset_count         = uec_get_sset_count,
414         .get_strings            = uec_get_strings,
415         .get_ethtool_stats      = uec_get_ethtool_stats,
416         .get_wol                = uec_get_wol,
417         .set_wol                = uec_set_wol,
418 };
419
420 void uec_set_ethtool_ops(struct net_device *netdev)
421 {
422         SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
423 }