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
41#include "ucc_geth.h"
42#include "ucc_geth_mii.h"
43
44static char hw_stat_gstrings[][ETH_GSTRING_LEN] = {
45 "tx-64-frames",
46 "tx-65-127-frames",
47 "tx-128-255-frames",
48 "rx-64-frames",
49 "rx-65-127-frames",
50 "rx-128-255-frames",
51 "tx-bytes-ok",
52 "tx-pause-frames",
53 "tx-multicast-frames",
54 "tx-broadcast-frames",
55 "rx-frames",
56 "rx-bytes-ok",
57 "rx-bytes-all",
58 "rx-multicast-frames",
59 "rx-broadcast-frames",
60 "stats-counter-carry",
61 "stats-counter-mask",
62 "rx-dropped-frames",
63};
64
65static char tx_fw_stat_gstrings[][ETH_GSTRING_LEN] = {
66 "tx-single-collision",
67 "tx-multiple-collision",
68 "tx-late-collsion",
69 "tx-aborted-frames",
70 "tx-lost-frames",
71 "tx-carrier-sense-errors",
72 "tx-frames-ok",
73 "tx-excessive-differ-frames",
74 "tx-256-511-frames",
75 "tx-512-1023-frames",
76 "tx-1024-1518-frames",
77 "tx-jumbo-frames",
78};
79
80static 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
111static int
112uec_get_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
113{
114 struct ucc_geth_private *ugeth = netdev_priv(netdev);
115 struct phy_device *phydev = ugeth->phydev;
116 struct ucc_geth_info *ug_info = ugeth->ug_info;
117
118 if (!phydev)
119 return -ENODEV;
120
121 ecmd->maxtxpkt = 1;
122 ecmd->maxrxpkt = ug_info->interruptcoalescingmaxvalue[0];
123
124 return phy_ethtool_gset(phydev, ecmd);
125}
126
127static int
128uec_set_settings(struct net_device *netdev, struct ethtool_cmd *ecmd)
129{
130 struct ucc_geth_private *ugeth = netdev_priv(netdev);
131 struct phy_device *phydev = ugeth->phydev;
132
133 if (!phydev)
134 return -ENODEV;
135
136 return phy_ethtool_sset(phydev, ecmd);
137}
138
139static void
140uec_get_pauseparam(struct net_device *netdev,
141 struct ethtool_pauseparam *pause)
142{
143 struct ucc_geth_private *ugeth = netdev_priv(netdev);
144
145 pause->autoneg = ugeth->phydev->autoneg;
146
147 if (ugeth->ug_info->receiveFlowControl)
148 pause->rx_pause = 1;
149 if (ugeth->ug_info->transmitFlowControl)
150 pause->tx_pause = 1;
151}
152
153static int
154uec_set_pauseparam(struct net_device *netdev,
155 struct ethtool_pauseparam *pause)
156{
157 struct ucc_geth_private *ugeth = netdev_priv(netdev);
158 int ret = 0;
159
160 ugeth->ug_info->receiveFlowControl = pause->rx_pause;
161 ugeth->ug_info->transmitFlowControl = pause->tx_pause;
162
163 if (ugeth->phydev->autoneg) {
164 if (netif_running(netdev)) {
165 /* FIXME: automatically restart */
166 printk(KERN_INFO
167 "Please re-open the interface.\n");
168 }
169 } else {
170 struct ucc_geth_info *ug_info = ugeth->ug_info;
171
172 ret = init_flow_control_params(ug_info->aufc,
173 ug_info->receiveFlowControl,
174 ug_info->transmitFlowControl,
175 ug_info->pausePeriod,
176 ug_info->extensionField,
177 &ugeth->uccf->uf_regs->upsmr,
178 &ugeth->ug_regs->uempr,
179 &ugeth->ug_regs->maccfg1);
180 }
181
182 return ret;
183}
184
185static uint32_t
186uec_get_msglevel(struct net_device *netdev)
187{
188 struct ucc_geth_private *ugeth = netdev_priv(netdev);
189 return ugeth->msg_enable;
190}
191
192static void
193uec_set_msglevel(struct net_device *netdev, uint32_t data)
194{
195 struct ucc_geth_private *ugeth = netdev_priv(netdev);
196 ugeth->msg_enable = data;
197}
198
199static int
200uec_get_regs_len(struct net_device *netdev)
201{
202 return sizeof(struct ucc_geth);
203}
204
205static void
206uec_get_regs(struct net_device *netdev,
207 struct ethtool_regs *regs, void *p)
208{
209 int i;
210 struct ucc_geth_private *ugeth = netdev_priv(netdev);
211 u32 __iomem *ug_regs = (u32 __iomem *)ugeth->ug_regs;
212 u32 *buff = p;
213
214 for (i = 0; i < sizeof(struct ucc_geth) / sizeof(u32); i++)
215 buff[i] = in_be32(&ug_regs[i]);
216}
217
218static void
219uec_get_ringparam(struct net_device *netdev,
220 struct ethtool_ringparam *ring)
221{
222 struct ucc_geth_private *ugeth = netdev_priv(netdev);
223 struct ucc_geth_info *ug_info = ugeth->ug_info;
224 int queue = 0;
225
226 ring->rx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
227 ring->rx_mini_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
228 ring->rx_jumbo_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
229 ring->tx_max_pending = UCC_GETH_BD_RING_SIZE_MAX;
230
231 ring->rx_pending = ug_info->bdRingLenRx[queue];
232 ring->rx_mini_pending = ug_info->bdRingLenRx[queue];
233 ring->rx_jumbo_pending = ug_info->bdRingLenRx[queue];
234 ring->tx_pending = ug_info->bdRingLenTx[queue];
235}
236
237static int
238uec_set_ringparam(struct net_device *netdev,
239 struct ethtool_ringparam *ring)
240{
241 struct ucc_geth_private *ugeth = netdev_priv(netdev);
242 struct ucc_geth_info *ug_info = ugeth->ug_info;
243 int queue = 0, ret = 0;
244
245 if (ring->rx_pending < UCC_GETH_RX_BD_RING_SIZE_MIN) {
246 printk("%s: RxBD ring size must be no smaller than %d.\n",
247 netdev->name, UCC_GETH_RX_BD_RING_SIZE_MIN);
248 return -EINVAL;
249 }
250 if (ring->rx_pending % UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT) {
251 printk("%s: RxBD ring size must be multiple of %d.\n",
252 netdev->name, UCC_GETH_RX_BD_RING_SIZE_ALIGNMENT);
253 return -EINVAL;
254 }
255 if (ring->tx_pending < UCC_GETH_TX_BD_RING_SIZE_MIN) {
256 printk("%s: TxBD ring size must be no smaller than %d.\n",
257 netdev->name, UCC_GETH_TX_BD_RING_SIZE_MIN);
258 return -EINVAL;
259 }
260
261 ug_info->bdRingLenRx[queue] = ring->rx_pending;
262 ug_info->bdRingLenTx[queue] = ring->tx_pending;
263
264 if (netif_running(netdev)) {
265 /* FIXME: restart automatically */
266 printk(KERN_INFO
267 "Please re-open the interface.\n");
268 }
269
270 return ret;
271}
272
273static int uec_get_sset_count(struct net_device *netdev, int sset)
274{
275 struct ucc_geth_private *ugeth = netdev_priv(netdev);
276 u32 stats_mode = ugeth->ug_info->statisticsMode;
277 int len = 0;
278
279 switch (sset) {
280 case ETH_SS_STATS:
281 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
282 len += UEC_HW_STATS_LEN;
283 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
284 len += UEC_TX_FW_STATS_LEN;
285 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
286 len += UEC_RX_FW_STATS_LEN;
287
288 return len;
289
290 default:
291 return -EOPNOTSUPP;
292 }
293}
294
295static 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, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
312 ETH_GSTRING_LEN);
313}
314
315static 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++] = 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++] = base ? in_be32(&base[i]) : 0;
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++] = base ? in_be32(&base[i]) : 0;
337 }
338}
339
340static 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 */
348static void
349uec_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->eedump_len = 0;
357 drvinfo->regdump_len = uec_get_regs_len(netdev);
358}
359
360static const struct ethtool_ops uec_ethtool_ops = {
361 .get_settings = uec_get_settings,
362 .set_settings = uec_set_settings,
363 .get_drvinfo = uec_get_drvinfo,
364 .get_regs_len = uec_get_regs_len,
365 .get_regs = uec_get_regs,
366 .get_msglevel = uec_get_msglevel,
367 .set_msglevel = uec_set_msglevel,
368 .nway_reset = uec_nway_reset,
369 .get_link = ethtool_op_get_link,
370 .get_ringparam = uec_get_ringparam,
371 .set_ringparam = uec_set_ringparam,
372 .get_pauseparam = uec_get_pauseparam,
373 .set_pauseparam = uec_set_pauseparam,
374 .set_sg = ethtool_op_set_sg,
375 .get_sset_count = uec_get_sset_count,
376 .get_strings = uec_get_strings,
377 .get_ethtool_stats = uec_get_ethtool_stats,
378};
379
380void uec_set_ethtool_ops(struct net_device *netdev)
381{
382 SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
383}