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-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
111extern 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
117static int
118uec_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
133static int
134uec_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
145static void
146uec_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
159static int
160uec_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
191static uint32_t
192uec_get_msglevel(struct net_device *netdev)
193{
194 struct ucc_geth_private *ugeth = netdev_priv(netdev);
195 return ugeth->msg_enable;
196}
197
198static void
199uec_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
205static int
206uec_get_regs_len(struct net_device *netdev)
207{
208 return sizeof(struct ucc_geth);
209}
210
211static void
212uec_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
224static void
225uec_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
243static int
244uec_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
279static int uec_get_sset_count(struct net_device *netdev, int sset)
280{
281 struct ucc_geth_private *ugeth = netdev_priv(netdev);
282 u32 stats_mode = ugeth->ug_info->statisticsMode;
283 int len = 0;
284
285 switch (sset) {
286 case ETH_SS_STATS:
287 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE)
288 len += UEC_HW_STATS_LEN;
289 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX)
290 len += UEC_TX_FW_STATS_LEN;
291 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
292 len += UEC_RX_FW_STATS_LEN;
293
294 return len;
295
296 default:
297 return -EOPNOTSUPP;
298 }
299}
300
301static void uec_get_strings(struct net_device *netdev, u32 stringset, u8 *buf)
302{
303 struct ucc_geth_private *ugeth = netdev_priv(netdev);
304 u32 stats_mode = ugeth->ug_info->statisticsMode;
305
306 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
307 memcpy(buf, hw_stat_gstrings, UEC_HW_STATS_LEN *
308 ETH_GSTRING_LEN);
309 buf += UEC_HW_STATS_LEN * ETH_GSTRING_LEN;
310 }
311 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
312 memcpy(buf, tx_fw_stat_gstrings, UEC_TX_FW_STATS_LEN *
313 ETH_GSTRING_LEN);
314 buf += UEC_TX_FW_STATS_LEN * ETH_GSTRING_LEN;
315 }
316 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX)
317 memcpy(buf, tx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN *
318 ETH_GSTRING_LEN);
319}
320
321static void uec_get_ethtool_stats(struct net_device *netdev,
322 struct ethtool_stats *stats, uint64_t *data)
323{
324 struct ucc_geth_private *ugeth = netdev_priv(netdev);
325 u32 stats_mode = ugeth->ug_info->statisticsMode;
326 u32 __iomem *base;
327 int i, j = 0;
328
329 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_HARDWARE) {
330 base = (u32 __iomem *)&ugeth->ug_regs->tx64;
331 for (i = 0; i < UEC_HW_STATS_LEN; i++)
332 data[j++] = (u64)in_be32(&base[i]);
333 }
334 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_TX) {
335 base = (u32 __iomem *)ugeth->p_tx_fw_statistics_pram;
336 for (i = 0; i < UEC_TX_FW_STATS_LEN; i++)
337 data[j++] = (u64)in_be32(&base[i]);
338 }
339 if (stats_mode & UCC_GETH_STATISTICS_GATHERING_MODE_FIRMWARE_RX) {
340 base = (u32 __iomem *)ugeth->p_rx_fw_statistics_pram;
341 for (i = 0; i < UEC_RX_FW_STATS_LEN; i++)
342 data[j++] = (u64)in_be32(&base[i]);
343 }
344}
345
346static int uec_nway_reset(struct net_device *netdev)
347{
348 struct ucc_geth_private *ugeth = netdev_priv(netdev);
349
350 return phy_start_aneg(ugeth->phydev);
351}
352
353/* Report driver information */
354static void
355uec_get_drvinfo(struct net_device *netdev,
356 struct ethtool_drvinfo *drvinfo)
357{
358 strncpy(drvinfo->driver, DRV_NAME, 32);
359 strncpy(drvinfo->version, DRV_VERSION, 32);
360 strncpy(drvinfo->fw_version, "N/A", 32);
361 strncpy(drvinfo->bus_info, "QUICC ENGINE", 32);
362 drvinfo->eedump_len = 0;
363 drvinfo->regdump_len = uec_get_regs_len(netdev);
364}
365
366static const struct ethtool_ops uec_ethtool_ops = {
367 .get_settings = uec_get_settings,
368 .set_settings = uec_set_settings,
369 .get_drvinfo = uec_get_drvinfo,
370 .get_regs_len = uec_get_regs_len,
371 .get_regs = uec_get_regs,
372 .get_msglevel = uec_get_msglevel,
373 .set_msglevel = uec_set_msglevel,
374 .nway_reset = uec_nway_reset,
375 .get_link = ethtool_op_get_link,
376 .get_ringparam = uec_get_ringparam,
377 .set_ringparam = uec_set_ringparam,
378 .get_pauseparam = uec_get_pauseparam,
379 .set_pauseparam = uec_set_pauseparam,
380 .set_sg = ethtool_op_set_sg,
381 .get_sset_count = uec_get_sset_count,
382 .get_strings = uec_get_strings,
383 .get_ethtool_stats = uec_get_ethtool_stats,
384};
385
386void uec_set_ethtool_ops(struct net_device *netdev)
387{
388 SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops);
389}