tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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
45static 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
66static 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-512-1023-frames",
77 "tx-1024-1518-frames",
78 "tx-jumbo-frames",
79};
80
81static char rx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
82 "rx-crc-errors",
83 "rx-alignment-errors",
84 "rx-in-range-length-errors",
85 "rx-out-of-range-length-errors",
86 "rx-too-long-frames",
87 "rx-runt",
88 "rx-very-long-event",
89 "rx-symbol-errors",
90 "rx-busy-drop-frames",
91 "reserved",
92 "reserved",
93 "rx-mismatch-drop-frames",
94 "rx-small-than-64",
95 "rx-256-511-frames",
96 "rx-512-1023-frames",
97 "rx-1024-1518-frames",
98 "rx-jumbo-frames",
99 "rx-mac-error-loss",
100 "rx-pause-frames",
101 "reserved",
102 "rx-vlan-removed",
103 "rx-vlan-replaced",
104 "rx-vlan-inserted",
105 "rx-ip-checksum-errors",
106};
107
108#define UEC_HW_STATS_LEN ARRAY_SIZE(hw_stat_gstrings)
109#define UEC_TX_FW_STATS_LEN ARRAY_SIZE(tx_fw_stat_gstrings)
110#define UEC_RX_FW_STATS_LEN ARRAY_SIZE(rx_fw_stat_gstrings)
111
112static int
113uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
114{
115 struct ucc_geth_private *ugeth = netdev_priv(netdev);
116 struct phy_device *phydev = ugeth->phydev;
117 struct ucc_geth_info *ug_info = ugeth->ug_info;
118
119 if (!phydev)
120 return -ENODEV;
121
122 ecmd->maxtxpkt = 1;
123 ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
124
125 return phy_ethtool_gset(phydev, ecmd);
126}
127
128static int
129uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
130{
131 struct ucc_geth_private *ugeth = netdev_priv(netdev);
132 struct phy_device *phydev = ugeth->phydev;
133
134 if (!phydev)
135 return -ENODEV;
136
137 return phy_ethtool_sset(phydev, ecmd);
138}
139
140static void
141uec_get_pauseparam(struct net_device *netdev,
142 struct ethtool_pauseparam *pause)
143{
144 struct ucc_geth_private *ugeth = netdev_priv(netdev);
145
146 pause->autoneg = ugeth->phydev->autoneg;
147
148 if (ugeth->ug_info->receiveFlowControl)
149 pause->rx_pause = 1;
150 if (ugeth->ug_info->transmitFlowControl)
151 pause->tx_pause = 1;
152}
153
154static int
155uec_set_pauseparam(struct net_device *netdev,
156 struct ethtool_pauseparam *pause)
157{
158 struct ucc_geth_private *ugeth = netdev_priv(netdev);
159 int ret = 0;
160
161 ugeth->ug_info->receiveFlowControl = pause->rx_pause;
162 ugeth->ug_info->transmitFlowControl = pause->tx_pause;
163
164 if (ugeth->phydev->autoneg) {
165 if (netif_running(netdev)) {
166 /* FIXME: automatically restart */
167 printk(KERN_INFO
168 "Please re-open the interface.\n");
169 }
170 } else {
171 struct ucc_geth_info *ug_info = ugeth->ug_info;
172
173 ret = init_flow_control_params(ug_info->aufc,
174 ug_info->receiveFlowControl,
175 ug_info->transmitFlowControl,
176 ug_info->pausePeriod,
177 ug_info->extensionField,
178 &ugeth->uccf->uf_regs->upsmr,
179 &ugeth->ug_regs->uempr,
180 &ugeth->ug_regs->maccfg1);
181 }
182
183 return ret;
184}
185
186static uint32_t
187uec_get_msglevel(struct net_device *netdev)
188{
189 struct ucc_geth_private *ugeth = netdev_priv(netdev);
190 return ugeth->msg_enable;
191}
192
193static void
194uec_set_msglevel(struct net_device *netdev, uint32_t data)
195{
196 struct ucc_geth_private *ugeth = netdev_priv(netdev);
197 ugeth->msg_enable = data;
198}
199
200static int
201uec_get_regs_len(struct net_device *netdev)
202{
203 return sizeof(struct ucc_geth);
204}
205
206static void
207uec_get_regs(struct net_device *netdev,
208 struct ethtool_regs *regs, void *p)
209{
210 int i;
211 struct ucc_geth_private *ugeth = netdev_priv(netdev);
212 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
213 u32 *buff = p;
214
215 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
216 buff[i] = in_be32(&ug_regs[i]);
217}
218
219static void
220uec_get_ringparam(struct net_device *netdev,
221 struct ethtool_ringparam *ring)
222{
223 struct ucc_geth_private *ugeth = netdev_priv(netdev);
224 struct ucc_geth_info *ug_info = ugeth->ug_info;
225 int queue = 0;
226
227 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
228 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
229 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
230 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
231
232 ring->rx_pending = ug_info->bdRingLenRx[queue];
233 ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
234 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
235 ring->tx_pending = ug_info->bdRingLenTx[queue];
236}
237
238static int
239uec_set_ringparam(struct net_device *netdev,
240 struct ethtool_ringparam *ring)
241{
242 struct ucc_geth_private *ugeth = netdev_priv(netdev);
243 struct ucc_geth_info *ug_info = ugeth->ug_info;
244 int queue = 0, ret = 0;
245
246 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
247 printk("%s: RxBD ring size must be no smaller than %d.\n",
248 netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN);
249 return -EINVAL;
250 }
251 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
252 printk("%s: RxBD ring size must be multiple of %d.\n",
253 netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
254 return -EINVAL;
255 }
256 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
257 printk("%s: TxBD ring size must be no smaller than %d.\n",
258 netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN);
259 return -EINVAL;
260 }
261
262 ug_info->bdRingLenRx[queue] = ring->rx_pending;
263 ug_info->bdRingLenTx[queue] = ring->tx_pending;
264
265 if (netif_running(netdev)) {
266 /* FIXME: restart automatically */
267 printk(KERN_INFO
268 "Please re-open the interface.\n");
269 }
270
271 return ret;
272}
273
274static int uec_get_sset_count(struct net_device *netdev, int sset)
275{
276 struct ucc_geth_private *ugeth = netdev_priv(netdev);
277 u32 stats_mode = ugeth->ug_info->statisticsMode;
278 int len = 0;
279
280 switch (sset) {
281 case ETH_SS_STATS:
282 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
283 len += UEC_HW_STATS_LEN;
284 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
285 len += UEC_TX_FW_STATS_LEN;
286 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
287 len += UEC_RX_FW_STATS_LEN;
288
289 return len;
290
291 default:
292 return -EOPNOTSUPP;
293 }
294}
295
296static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
297{
298 struct ucc_geth_private *ugeth = netdev_priv(netdev);
299 u32 stats_mode = ugeth->ug_info->statisticsMode;
300
301 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
302 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
303 ETH_GSTRING_LEN);
304 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
305 }
306 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
307 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
308 ETH_GSTRING_LEN);
309 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
310 }
311 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
312 memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
313 ETH_GSTRING_LEN);
314}
315
316static void uec_get_ethtool_stats(struct net_device *netdev,
317 struct ethtool_stats *stats, uint64_t *data)
318{
319 struct ucc_geth_private *ugeth = netdev_priv(netdev);
320 u32 stats_mode = ugeth->ug_info->statisticsMode;
321 u32 __iomem *base;
322 int i, j = 0;
323
324 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
325 base = (u32 __iomem *)&ugeth->ug_regs->tx64;
326 for (i = 0; i < UEC_HW_STATS_LEN; i++)
327 data[j++] = (u64)in_be32(&base[i]);
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++] = (u64)in_be32(&base[i]);
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++] = (u64)in_be32(&base[i]);
338 }
339}
340
341static 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 */
349static void
350uec_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
361static const struct ethtool_ops uec_ethtool_ops = {
362 .get_settings = uec_get_settings,
363 .set_settings = uec_set_settings,
364 .get_drvinfo = uec_get_drvinfo,
365 .get_regs_len = uec_get_regs_len,
366 .get_regs = uec_get_regs,
367 .get_msglevel = uec_get_msglevel,
368 .set_msglevel = uec_set_msglevel,
369 .nway_reset = uec_nway_reset,
370 .get_link = ethtool_op_get_link,
371 .get_ringparam = uec_get_ringparam,
372 .set_ringparam = uec_set_ringparam,
373 .get_pauseparam = uec_get_pauseparam,
374 .set_pauseparam = uec_set_pauseparam,
375 .set_sg = ethtool_op_set_sg,
376 .get_sset_count = uec_get_sset_count,
377 .get_strings = uec_get_strings,
378 .get_ethtool_stats = uec_get_ethtool_stats,
379};
380
381void uec_set_ethtool_ops(struct net_device *netdev)
382{
383 SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
384}