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