ucc_geth: remove get_perm_addr from ucc_geth_ethtool.c
[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 setttings of the first queue.
10  * Need to re-open the interface manually after changing some paramters.
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/slab.h>
22 #include <linux/stddef.h>
23 #include <linux/interrupt.h>
24 #include <linux/netdevice.h>
25 #include <linux/etherdevice.h>
26 #include <linux/skbuff.h>
27 #include <linux/spinlock.h>
28 #include <linux/mm.h>
29 #include <linux/delay.h>
30 #include <linux/dma-mapping.h>
31 #include <linux/fsl_devices.h>
32 #include <linux/ethtool.h>
33 #include <linux/mii.h>
34 #include <linux/phy.h>
35
36 #include <asm/io.h>
37 #include <asm/irq.h>
38 #include <asm/uaccess.h>
39 #include <asm/types.h>
40 #include <asm/uaccess.h>
41
42 #include "ucc_geth.h"
43 #include "ucc_geth_mii.h"
44
45 static char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
46         "tx-64-frames",
47         "tx-65-127-frames",
48         "tx-128-255-frames",
49         "rx-64-frames",
50         "rx-65-127-frames",
51         "rx-128-255-frames",
52         "tx-bytes-ok",
53         "tx-pause-frames",
54         "tx-multicast-frames",
55         "tx-broadcast-frames",
56         "rx-frames",
57         "rx-bytes-ok",
58         "rx-bytes-all",
59         "rx-multicast-frames",
60         "rx-broadcast-frames",
61         "stats-counter-carry",
62         "stats-counter-mask",
63         "rx-dropped-frames",
64 };
65
66 static char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
67         "tx-single-collision",
68         "tx-multiple-collision",
69         "tx-late-collsion",
70         "tx-aborted-frames",
71         "tx-lost-frames",
72         "tx-carrier-sense-errors",
73         "tx-frames-ok",
74         "tx-excessive-differ-frames",
75         "tx-256-511-frames",
76         "tx-1024-1518-frames",
77         "tx-jumbo-frames",
78 };
79
80 static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
81         "rx-crc-errors",
82         "rx-alignment-errors",
83         "rx-in-range-length-errors",
84         "rx-out-of-range-length-errors",
85         "rx-too-long-frames",
86         "rx-runt",
87         "rx-very-long-event",
88         "rx-symbol-errors",
89         "rx-busy-drop-frames",
90         "reserved",
91         "reserved",
92         "rx-mismatch-drop-frames",
93         "rx-small-than-64",
94         "rx-256-511-frames",
95         "rx-512-1023-frames",
96         "rx-1024-1518-frames",
97         "rx-jumbo-frames",
98         "rx-mac-error-loss",
99         "rx-pause-frames",
100         "reserved",
101         "rx-vlan-removed",
102         "rx-vlan-replaced",
103         "rx-vlan-inserted",
104         "rx-ip-checksum-errors",
105 };
106
107 #define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
108 #define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
109 #define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
110
111 extern int init_flow_control_params(u32 automatic_flow_control_mode,
112                 int rx_flow_control_enable,
113                 int tx_flow_control_enable, u16 pause_period,
114                 u16 extension_field, volatile u32 *upsmr_register,
115                 volatile u32 *uempr_register, volatile u32 *maccfg1_register);
116
117 static int
118 uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
119 {
120         struct ucc_geth_private *ugeth = netdev_priv(netdev);
121         struct phy_device *phydev = ugeth->phydev;
122         struct ucc_geth_info *ug_info = ugeth->ug_info;
123
124         if (!phydev)
125                 return -ENODEV;
126
127         ecmd->maxtxpkt = 1;
128         ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
129
130         return phy_ethtool_gset(phydev, ecmd);
131 }
132
133 static int
134 uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
135 {
136         struct ucc_geth_private *ugeth = netdev_priv(netdev);
137         struct phy_device *phydev = ugeth->phydev;
138
139         if (!phydev)
140                 return -ENODEV;
141
142         return phy_ethtool_sset(phydev, ecmd);
143 }
144
145 static void
146 uec_get_pauseparam(struct net_device *netdev,
147                      struct ethtool_pauseparam *pause)
148 {
149         struct ucc_geth_private *ugeth = netdev_priv(netdev);
150
151         pause->autoneg = ugeth->phydev->autoneg;
152
153         if (ugeth->ug_info->receiveFlowControl)
154                 pause->rx_pause = 1;
155         if (ugeth->ug_info->transmitFlowControl)
156                 pause->tx_pause = 1;
157 }
158
159 static int
160 uec_set_pauseparam(struct net_device *netdev,
161                      struct ethtool_pauseparam *pause)
162 {
163         struct ucc_geth_private *ugeth = netdev_priv(netdev);
164         int ret = 0;
165
166         ugeth->ug_info->receiveFlowControl = pause->rx_pause;
167         ugeth->ug_info->transmitFlowControl = pause->tx_pause;
168         
169         if (ugeth->phydev->autoneg) {
170                 if (netif_running(netdev)) {
171                         /* FIXME: automatically restart */
172                         printk(KERN_INFO
173                                 "Please re-open the interface.\n");
174                 }
175         } else {
176                 struct ucc_geth_info *ug_info = ugeth->ug_info;
177
178                 ret = init_flow_control_params(ug_info->aufc,
179                                         ug_info->receiveFlowControl,
180                                         ug_info->transmitFlowControl,
181                                         ug_info->pausePeriod,
182                                         ug_info->extensionField,
183                                         &ugeth->uccf->uf_regs->upsmr,
184                                         &ugeth->ug_regs->uempr,
185                                         &ugeth->ug_regs->maccfg1);
186         }
187
188         return ret;
189 }
190
191 static uint32_t
192 uec_get_msglevel(struct net_device *netdev)
193 {
194         struct ucc_geth_private *ugeth = netdev_priv(netdev);
195         return ugeth->msg_enable;
196 }
197
198 static void
199 uec_set_msglevel(struct net_device *netdev, uint32_t data)
200 {
201         struct ucc_geth_private *ugeth = netdev_priv(netdev);
202         ugeth->msg_enable = data;
203 }
204
205 static int
206 uec_get_regs_len(struct net_device *netdev)
207 {
208         return sizeof(struct ucc_geth);
209 }
210
211 static void
212 uec_get_regs(struct net_device *netdev,
213                struct ethtool_regs *regs, void *p)
214 {
215         int i;
216         struct ucc_geth_private *ugeth = netdev_priv(netdev);
217         u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
218         u32 *buff = p;
219
220         for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
221                 buff[i] = in_be32(&ug_regs[i]);
222 }
223
224 static void
225 uec_get_ringparam(struct net_device *netdev,
226                     struct ethtool_ringparam *ring)
227 {
228         struct ucc_geth_private *ugeth = netdev_priv(netdev);
229         struct ucc_geth_info *ug_info = ugeth->ug_info;
230         int queue = 0;
231
232         ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
233         ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
234         ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
235         ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
236
237         ring->rx_pending = ug_info->bdRingLenRx[queue];
238         ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
239         ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
240         ring->tx_pending = ug_info->bdRingLenTx[queue];
241 }
242
243 static int
244 uec_set_ringparam(struct net_device *netdev,
245                     struct ethtool_ringparam *ring)
246 {
247         struct ucc_geth_private *ugeth = netdev_priv(netdev);
248         struct ucc_geth_info *ug_info = ugeth->ug_info;
249         int queue = 0, ret = 0;
250
251         if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
252                 printk("%s: RxBD ring size must be no smaller than %d.\n",
253                                 netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN);
254                 return -EINVAL;
255         }
256         if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
257                 printk("%s: RxBD ring size must be multiple of %d.\n",
258                         netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
259                 return -EINVAL;
260         }
261         if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
262                 printk("%s: TxBD ring size must be no smaller than %d.\n",
263                                 netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN);
264                 return -EINVAL;
265         }
266
267         ug_info->bdRingLenRx[queue] = ring->rx_pending;
268         ug_info->bdRingLenTx[queue] = ring->tx_pending;
269
270         if (netif_running(netdev)) {
271                 /* FIXME: restart automatically */
272                 printk(KERN_INFO
273                         "Please re-open the interface.\n");
274         }
275
276         return ret;
277 }
278
279 static int uec_get_stats_count(struct net_device *netdev)
280 {
281         struct ucc_geth_private *ugeth = netdev_priv(netdev);
282         u32 stats_mode = ugeth->ug_info->statisticsMode;
283         int len = 0;
284
285         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
286                 len += UEC_HW_STATS_LEN;
287         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
288                 len += UEC_TX_FW_STATS_LEN;
289         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
290                 len += UEC_RX_FW_STATS_LEN;
291
292         return len;
293 }
294
295 static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
296 {
297         struct ucc_geth_private *ugeth = netdev_priv(netdev);
298         u32 stats_mode = ugeth->ug_info->statisticsMode;
299
300         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
301                 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
302                                 ETH_GSTRING_LEN);
303                 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
304         }
305         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
306                 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
307                                 ETH_GSTRING_LEN);
308                 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
309         }
310         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
311                 memcpy(buf, tx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
312                                 ETH_GSTRING_LEN);
313 }
314
315 static void uec_get_ethtool_stats(struct net_device *netdev,
316                 struct ethtool_stats *stats, uint64_t *data)
317 {
318         struct ucc_geth_private *ugeth = netdev_priv(netdev);
319         u32 stats_mode = ugeth->ug_info->statisticsMode;
320         u32 __iomem *base;
321         int i, j = 0;
322
323         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
324                 base = (u32 __iomem *)&ugeth->ug_regs->tx64;
325                 for (i = 0; i < UEC_HW_STATS_LEN; i++)
326                         data[j++] = (u64)in_be32(&base[i]);
327         }
328         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
329                 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
330                 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
331                         data[j++] = (u64)in_be32(&base[i]);
332         }
333         if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
334                 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
335                 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
336                         data[j++] = (u64)in_be32(&base[i]);
337         }
338 }
339
340 static int uec_nway_reset(struct net_device *netdev)
341 {
342         struct ucc_geth_private *ugeth = netdev_priv(netdev);
343
344         return phy_start_aneg(ugeth->phydev);
345 }
346
347 /* Report driver information */
348 static void
349 uec_get_drvinfo(struct net_device *netdev,
350                        struct ethtool_drvinfo *drvinfo)
351 {
352         strncpy(drvinfo->driver, DRV_NAME, 32);
353         strncpy(drvinfo->version, DRV_VERSION, 32);
354         strncpy(drvinfo->fw_version, "N/A", 32);
355         strncpy(drvinfo->bus_info, "QUICC ENGINE", 32);
356         drvinfo->n_stats = uec_get_stats_count(netdev);
357         drvinfo->testinfo_len = 0;
358         drvinfo->eedump_len = 0;
359         drvinfo->regdump_len = uec_get_regs_len(netdev);
360 }
361
362 static const struct ethtool_ops uec_ethtool_ops = {
363         .get_settings           = uec_get_settings,
364         .set_settings           = uec_set_settings,
365         .get_drvinfo            = uec_get_drvinfo,
366         .get_regs_len           = uec_get_regs_len,
367         .get_regs               = uec_get_regs,
368         .get_msglevel           = uec_get_msglevel,
369         .set_msglevel           = uec_set_msglevel,
370         .nway_reset             = uec_nway_reset,
371         .get_link               = ethtool_op_get_link,
372         .get_ringparam          = uec_get_ringparam,
373         .set_ringparam          = uec_set_ringparam,
374         .get_pauseparam         = uec_get_pauseparam,
375         .set_pauseparam         = uec_set_pauseparam,
376         .get_sg                 = ethtool_op_get_sg,
377         .set_sg                 = ethtool_op_set_sg,
378         .get_tso                = ethtool_op_get_tso,
379         .get_stats_count        = uec_get_stats_count,
380         .get_strings            = uec_get_strings,
381         .get_ethtool_stats      = uec_get_ethtool_stats,
382 };
383
384 void uec_set_ethtool_ops(struct net_device *netdev)
385 {
386         SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
387 }