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ac421852 LY |
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 | * | |
7d2e3cb7 | 8 | * Limitation: |
ac421852 | 9 | * Can only get/set setttings of the first queue. |
98a1708d | 10 | * Need to re-open the interface manually after changing some parameters. |
ac421852 LY |
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> | |
ac421852 LY |
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> | |
ac421852 LY |
39 | |
40 | #include "ucc_geth.h" | |
ac421852 LY |
41 | |
42 | static 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 | ||
63 | static 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", | |
08722bc4 | 73 | "tx-512-1023-frames", |
ac421852 LY |
74 | "tx-1024-1518-frames", |
75 | "tx-jumbo-frames", | |
76 | }; | |
77 | ||
78 | static 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 | ||
ac421852 LY |
109 | static int |
110 | uec_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 | ||
125 | static int | |
126 | uec_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 | ||
137 | static void | |
138 | uec_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 | ||
151 | static int | |
152 | uec_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; | |
7d2e3cb7 | 160 | |
ac421852 LY |
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 | ||
183 | static uint32_t | |
184 | uec_get_msglevel(struct net_device *netdev) | |
185 | { | |
186 | struct ucc_geth_private *ugeth = netdev_priv(netdev); | |
187 | return ugeth->msg_enable; | |
188 | } | |
189 | ||
190 | static void | |
191 | uec_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 | ||
197 | static int | |
198 | uec_get_regs_len(struct net_device *netdev) | |
199 | { | |
200 | return sizeof(struct ucc_geth); | |
201 | } | |
202 | ||
203 | static void | |
204 | uec_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 | ||
216 | static void | |
217 | uec_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 | ||
235 | static int | |
236 | uec_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 | ||
b9f2c044 | 271 | static int uec_get_sset_count(struct net_device *netdev, int sset) |
ac421852 LY |
272 | { |
273 | struct ucc_geth_private *ugeth = netdev_priv(netdev); | |
274 | u32 stats_mode = ugeth->ug_info->statisticsMode; | |
275 | int len = 0; | |
276 | ||
b9f2c044 JG |
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; | |
ac421852 | 287 | |
b9f2c044 JG |
288 | default: |
289 | return -EOPNOTSUPP; | |
290 | } | |
ac421852 LY |
291 | } |
292 | ||
293 | static 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) | |
25f03dcf | 309 | memcpy(buf, rx_fw_stat_gstrings, UEC_RX_FW_STATS_LEN * |
ac421852 LY |
310 | ETH_GSTRING_LEN); |
311 | } | |
312 | ||
313 | static 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++) | |
18acfa25 | 324 | data[j++] = in_be32(&base[i]); |
ac421852 LY |
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++) | |
18acfa25 | 329 | data[j++] = base ? in_be32(&base[i]) : 0; |
ac421852 LY |
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++) | |
18acfa25 | 334 | data[j++] = base ? in_be32(&base[i]) : 0; |
ac421852 LY |
335 | } |
336 | } | |
337 | ||
338 | static 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 */ | |
346 | static void | |
347 | uec_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); | |
ac421852 LY |
354 | drvinfo->eedump_len = 0; |
355 | drvinfo->regdump_len = uec_get_regs_len(netdev); | |
356 | } | |
357 | ||
358 | static 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, | |
ac421852 | 372 | .set_sg = ethtool_op_set_sg, |
b9f2c044 | 373 | .get_sset_count = uec_get_sset_count, |
ac421852 LY |
374 | .get_strings = uec_get_strings, |
375 | .get_ethtool_stats = uec_get_ethtool_stats, | |
ac421852 LY |
376 | }; |
377 | ||
378 | void uec_set_ethtool_ops(struct net_device *netdev) | |
379 | { | |
380 | SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops); | |
381 | } |