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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 | * | |
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 | ||
45 | static 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 | ||
66 | static 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 | ||
80 | static 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 | ||
111 | extern 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 | ||
117 | static int | |
118 | uec_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 | ||
133 | static int | |
134 | uec_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 | ||
145 | static void | |
146 | uec_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 | ||
159 | static int | |
160 | uec_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 | ||
191 | static uint32_t | |
192 | uec_get_msglevel(struct net_device *netdev) | |
193 | { | |
194 | struct ucc_geth_private *ugeth = netdev_priv(netdev); | |
195 | return ugeth->msg_enable; | |
196 | } | |
197 | ||
198 | static void | |
199 | uec_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 | ||
205 | static int | |
206 | uec_get_regs_len(struct net_device *netdev) | |
207 | { | |
208 | return sizeof(struct ucc_geth); | |
209 | } | |
210 | ||
211 | static void | |
212 | uec_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 | ||
224 | static void | |
225 | uec_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 | ||
243 | static int | |
244 | uec_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 | ||
b9f2c044 | 279 | static int uec_get_sset_count(struct net_device *netdev, int sset) |
ac421852 LY |
280 | { |
281 | struct ucc_geth_private *ugeth = netdev_priv(netdev); | |
282 | u32 stats_mode = ugeth->ug_info->statisticsMode; | |
283 | int len = 0; | |
284 | ||
b9f2c044 JG |
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; | |
ac421852 | 295 | |
b9f2c044 JG |
296 | default: |
297 | return -EOPNOTSUPP; | |
298 | } | |
ac421852 LY |
299 | } |
300 | ||
301 | static 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 | ||
321 | static 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 | ||
346 | static 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 */ | |
354 | static void | |
355 | uec_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); | |
ac421852 LY |
362 | drvinfo->eedump_len = 0; |
363 | drvinfo->regdump_len = uec_get_regs_len(netdev); | |
364 | } | |
365 | ||
366 | static 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, | |
ac421852 | 380 | .set_sg = ethtool_op_set_sg, |
b9f2c044 | 381 | .get_sset_count = uec_get_sset_count, |
ac421852 LY |
382 | .get_strings = uec_get_strings, |
383 | .get_ethtool_stats = uec_get_ethtool_stats, | |
ac421852 LY |
384 | }; |
385 | ||
386 | void uec_set_ethtool_ops(struct net_device *netdev) | |
387 | { | |
388 | SET_ETHTOOL_OPS(netdev, &uec_ethtool_ops); | |
389 | } |