Commit | Line | Data |
---|---|---|
02c18891 MM |
1 | /* |
2 | * PS3 gelic network driver. | |
3 | * | |
4 | * Copyright (C) 2007 Sony Computer Entertainment Inc. | |
5 | * Copyright 2006, 2007 Sony Corporation | |
6 | * | |
7 | * This file is based on: spider_net.c | |
8 | * | |
9 | * (C) Copyright IBM Corp. 2005 | |
10 | * | |
11 | * Authors : Utz Bacher <utz.bacher@de.ibm.com> | |
12 | * Jens Osterkamp <Jens.Osterkamp@de.ibm.com> | |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2, or (at your option) | |
17 | * any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | */ | |
28 | ||
29 | #undef DEBUG | |
30 | ||
31 | #include <linux/kernel.h> | |
32 | #include <linux/module.h> | |
33 | ||
34 | #include <linux/etherdevice.h> | |
35 | #include <linux/ethtool.h> | |
36 | #include <linux/if_vlan.h> | |
37 | ||
38 | #include <linux/in.h> | |
39 | #include <linux/ip.h> | |
40 | #include <linux/tcp.h> | |
41 | ||
42 | #include <linux/dma-mapping.h> | |
43 | #include <net/checksum.h> | |
44 | #include <asm/firmware.h> | |
45 | #include <asm/ps3.h> | |
46 | #include <asm/lv1call.h> | |
47 | ||
48 | #include "ps3_gelic_net.h" | |
49 | ||
50 | #define DRV_NAME "Gelic Network Driver" | |
51 | #define DRV_VERSION "1.0" | |
52 | ||
53 | MODULE_AUTHOR("SCE Inc."); | |
54 | MODULE_DESCRIPTION("Gelic Network driver"); | |
55 | MODULE_LICENSE("GPL"); | |
56 | ||
59e97327 | 57 | static inline struct device *ctodev(struct gelic_card *card) |
02c18891 MM |
58 | { |
59 | return &card->dev->core; | |
60 | } | |
59e97327 | 61 | static inline u64 bus_id(struct gelic_card *card) |
02c18891 MM |
62 | { |
63 | return card->dev->bus_id; | |
64 | } | |
59e97327 | 65 | static inline u64 dev_id(struct gelic_card *card) |
02c18891 MM |
66 | { |
67 | return card->dev->dev_id; | |
68 | } | |
69 | ||
70 | /* set irq_mask */ | |
59e97327 | 71 | static int gelic_card_set_irq_mask(struct gelic_card *card, u64 mask) |
02c18891 MM |
72 | { |
73 | int status; | |
74 | ||
75 | status = lv1_net_set_interrupt_mask(bus_id(card), dev_id(card), | |
76 | mask, 0); | |
77 | if (status) | |
78 | dev_info(ctodev(card), | |
79 | "lv1_net_set_interrupt_mask failed %d\n", status); | |
80 | return status; | |
81 | } | |
59e97327 | 82 | static inline void gelic_card_rx_irq_on(struct gelic_card *card) |
02c18891 | 83 | { |
59e97327 | 84 | gelic_card_set_irq_mask(card, card->ghiintmask | GELIC_CARD_RXINT); |
02c18891 | 85 | } |
59e97327 | 86 | static inline void gelic_card_rx_irq_off(struct gelic_card *card) |
02c18891 | 87 | { |
59e97327 | 88 | gelic_card_set_irq_mask(card, card->ghiintmask & ~GELIC_CARD_RXINT); |
02c18891 | 89 | } |
01fed4c2 MM |
90 | |
91 | static void | |
92 | gelic_card_get_ether_port_status(struct gelic_card *card, int inform) | |
93 | { | |
94 | u64 v2; | |
95 | struct net_device *ether_netdev; | |
96 | ||
97 | lv1_net_control(bus_id(card), dev_id(card), | |
98 | GELIC_LV1_GET_ETH_PORT_STATUS, | |
99 | GELIC_LV1_VLAN_TX_ETHERNET, 0, 0, | |
100 | &card->ether_port_status, &v2); | |
101 | ||
102 | if (inform) { | |
103 | ether_netdev = card->netdev; | |
104 | if (card->ether_port_status & GELIC_LV1_ETHER_LINK_UP) | |
105 | netif_carrier_on(ether_netdev); | |
106 | else | |
107 | netif_carrier_off(ether_netdev); | |
108 | } | |
109 | } | |
110 | ||
111 | ||
02c18891 | 112 | /** |
59e97327 | 113 | * gelic_descr_get_status -- returns the status of a descriptor |
02c18891 MM |
114 | * @descr: descriptor to look at |
115 | * | |
116 | * returns the status as in the dmac_cmd_status field of the descriptor | |
117 | */ | |
59e97327 MM |
118 | static enum gelic_descr_dma_status |
119 | gelic_descr_get_status(struct gelic_descr *descr) | |
02c18891 | 120 | { |
59e97327 | 121 | return be32_to_cpu(descr->dmac_cmd_status) & GELIC_DESCR_DMA_STAT_MASK; |
02c18891 MM |
122 | } |
123 | ||
124 | /** | |
59e97327 | 125 | * gelic_descr_set_status -- sets the status of a descriptor |
02c18891 MM |
126 | * @descr: descriptor to change |
127 | * @status: status to set in the descriptor | |
128 | * | |
129 | * changes the status to the specified value. Doesn't change other bits | |
130 | * in the status | |
131 | */ | |
59e97327 MM |
132 | static void gelic_descr_set_status(struct gelic_descr *descr, |
133 | enum gelic_descr_dma_status status) | |
02c18891 | 134 | { |
59e97327 MM |
135 | descr->dmac_cmd_status = cpu_to_be32(status | |
136 | (be32_to_cpu(descr->dmac_cmd_status) & | |
137 | ~GELIC_DESCR_DMA_STAT_MASK)); | |
02c18891 MM |
138 | /* |
139 | * dma_cmd_status field is used to indicate whether the descriptor | |
140 | * is valid or not. | |
141 | * Usually caller of this function wants to inform that to the | |
142 | * hardware, so we assure here the hardware sees the change. | |
143 | */ | |
144 | wmb(); | |
145 | } | |
146 | ||
147 | /** | |
59e97327 | 148 | * gelic_card_free_chain - free descriptor chain |
02c18891 MM |
149 | * @card: card structure |
150 | * @descr_in: address of desc | |
151 | */ | |
59e97327 MM |
152 | static void gelic_card_free_chain(struct gelic_card *card, |
153 | struct gelic_descr *descr_in) | |
02c18891 | 154 | { |
59e97327 | 155 | struct gelic_descr *descr; |
02c18891 MM |
156 | |
157 | for (descr = descr_in; descr && descr->bus_addr; descr = descr->next) { | |
158 | dma_unmap_single(ctodev(card), descr->bus_addr, | |
59e97327 | 159 | GELIC_DESCR_SIZE, DMA_BIDIRECTIONAL); |
02c18891 MM |
160 | descr->bus_addr = 0; |
161 | } | |
162 | } | |
163 | ||
164 | /** | |
59e97327 | 165 | * gelic_card_init_chain - links descriptor chain |
02c18891 MM |
166 | * @card: card structure |
167 | * @chain: address of chain | |
168 | * @start_descr: address of descriptor array | |
169 | * @no: number of descriptors | |
170 | * | |
171 | * we manage a circular list that mirrors the hardware structure, | |
172 | * except that the hardware uses bus addresses. | |
173 | * | |
174 | * returns 0 on success, <0 on failure | |
175 | */ | |
59e97327 MM |
176 | static int gelic_card_init_chain(struct gelic_card *card, |
177 | struct gelic_descr_chain *chain, | |
178 | struct gelic_descr *start_descr, int no) | |
02c18891 MM |
179 | { |
180 | int i; | |
59e97327 | 181 | struct gelic_descr *descr; |
02c18891 MM |
182 | |
183 | descr = start_descr; | |
184 | memset(descr, 0, sizeof(*descr) * no); | |
185 | ||
186 | /* set up the hardware pointers in each descriptor */ | |
187 | for (i = 0; i < no; i++, descr++) { | |
59e97327 | 188 | gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); |
02c18891 MM |
189 | descr->bus_addr = |
190 | dma_map_single(ctodev(card), descr, | |
59e97327 | 191 | GELIC_DESCR_SIZE, |
02c18891 MM |
192 | DMA_BIDIRECTIONAL); |
193 | ||
194 | if (!descr->bus_addr) | |
195 | goto iommu_error; | |
196 | ||
197 | descr->next = descr + 1; | |
198 | descr->prev = descr - 1; | |
199 | } | |
200 | /* make them as ring */ | |
201 | (descr - 1)->next = start_descr; | |
202 | start_descr->prev = (descr - 1); | |
203 | ||
204 | /* chain bus addr of hw descriptor */ | |
205 | descr = start_descr; | |
206 | for (i = 0; i < no; i++, descr++) { | |
100e1d89 | 207 | descr->next_descr_addr = cpu_to_be32(descr->next->bus_addr); |
02c18891 MM |
208 | } |
209 | ||
210 | chain->head = start_descr; | |
211 | chain->tail = start_descr; | |
212 | ||
213 | /* do not chain last hw descriptor */ | |
214 | (descr - 1)->next_descr_addr = 0; | |
215 | ||
216 | return 0; | |
217 | ||
218 | iommu_error: | |
219 | for (i--, descr--; 0 <= i; i--, descr--) | |
220 | if (descr->bus_addr) | |
221 | dma_unmap_single(ctodev(card), descr->bus_addr, | |
59e97327 | 222 | GELIC_DESCR_SIZE, |
02c18891 MM |
223 | DMA_BIDIRECTIONAL); |
224 | return -ENOMEM; | |
225 | } | |
226 | ||
227 | /** | |
59e97327 | 228 | * gelic_descr_prepare_rx - reinitializes a rx descriptor |
02c18891 MM |
229 | * @card: card structure |
230 | * @descr: descriptor to re-init | |
231 | * | |
232 | * return 0 on succes, <0 on failure | |
233 | * | |
234 | * allocates a new rx skb, iommu-maps it and attaches it to the descriptor. | |
235 | * Activate the descriptor state-wise | |
236 | */ | |
59e97327 MM |
237 | static int gelic_descr_prepare_rx(struct gelic_card *card, |
238 | struct gelic_descr *descr) | |
02c18891 MM |
239 | { |
240 | int offset; | |
241 | unsigned int bufsize; | |
242 | ||
59e97327 | 243 | if (gelic_descr_get_status(descr) != GELIC_DESCR_DMA_NOT_IN_USE) |
02c18891 | 244 | dev_info(ctodev(card), "%s: ERROR status \n", __func__); |
59e97327 | 245 | |
02c18891 MM |
246 | /* we need to round up the buffer size to a multiple of 128 */ |
247 | bufsize = ALIGN(GELIC_NET_MAX_MTU, GELIC_NET_RXBUF_ALIGN); | |
248 | ||
249 | /* and we need to have it 128 byte aligned, therefore we allocate a | |
250 | * bit more */ | |
251 | descr->skb = netdev_alloc_skb(card->netdev, | |
252 | bufsize + GELIC_NET_RXBUF_ALIGN - 1); | |
253 | if (!descr->skb) { | |
254 | descr->buf_addr = 0; /* tell DMAC don't touch memory */ | |
255 | dev_info(ctodev(card), | |
256 | "%s:allocate skb failed !!\n", __func__); | |
257 | return -ENOMEM; | |
258 | } | |
100e1d89 | 259 | descr->buf_size = cpu_to_be32(bufsize); |
02c18891 MM |
260 | descr->dmac_cmd_status = 0; |
261 | descr->result_size = 0; | |
262 | descr->valid_size = 0; | |
263 | descr->data_error = 0; | |
264 | ||
265 | offset = ((unsigned long)descr->skb->data) & | |
266 | (GELIC_NET_RXBUF_ALIGN - 1); | |
267 | if (offset) | |
268 | skb_reserve(descr->skb, GELIC_NET_RXBUF_ALIGN - offset); | |
269 | /* io-mmu-map the skb */ | |
100e1d89 MM |
270 | descr->buf_addr = cpu_to_be32(dma_map_single(ctodev(card), |
271 | descr->skb->data, | |
272 | GELIC_NET_MAX_MTU, | |
273 | DMA_FROM_DEVICE)); | |
02c18891 MM |
274 | if (!descr->buf_addr) { |
275 | dev_kfree_skb_any(descr->skb); | |
276 | descr->skb = NULL; | |
277 | dev_info(ctodev(card), | |
278 | "%s:Could not iommu-map rx buffer\n", __func__); | |
59e97327 | 279 | gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); |
02c18891 MM |
280 | return -ENOMEM; |
281 | } else { | |
59e97327 | 282 | gelic_descr_set_status(descr, GELIC_DESCR_DMA_CARDOWNED); |
02c18891 MM |
283 | return 0; |
284 | } | |
285 | } | |
286 | ||
287 | /** | |
59e97327 | 288 | * gelic_card_release_rx_chain - free all skb of rx descr |
02c18891 MM |
289 | * @card: card structure |
290 | * | |
291 | */ | |
59e97327 | 292 | static void gelic_card_release_rx_chain(struct gelic_card *card) |
02c18891 | 293 | { |
59e97327 | 294 | struct gelic_descr *descr = card->rx_chain.head; |
02c18891 MM |
295 | |
296 | do { | |
297 | if (descr->skb) { | |
298 | dma_unmap_single(ctodev(card), | |
100e1d89 | 299 | be32_to_cpu(descr->buf_addr), |
02c18891 MM |
300 | descr->skb->len, |
301 | DMA_FROM_DEVICE); | |
302 | descr->buf_addr = 0; | |
303 | dev_kfree_skb_any(descr->skb); | |
304 | descr->skb = NULL; | |
59e97327 MM |
305 | gelic_descr_set_status(descr, |
306 | GELIC_DESCR_DMA_NOT_IN_USE); | |
02c18891 MM |
307 | } |
308 | descr = descr->next; | |
309 | } while (descr != card->rx_chain.head); | |
310 | } | |
311 | ||
312 | /** | |
59e97327 | 313 | * gelic_card_fill_rx_chain - fills descriptors/skbs in the rx chains |
02c18891 MM |
314 | * @card: card structure |
315 | * | |
316 | * fills all descriptors in the rx chain: allocates skbs | |
317 | * and iommu-maps them. | |
59e97327 | 318 | * returns 0 on success, < 0 on failure |
02c18891 | 319 | */ |
59e97327 | 320 | static int gelic_card_fill_rx_chain(struct gelic_card *card) |
02c18891 | 321 | { |
59e97327 | 322 | struct gelic_descr *descr = card->rx_chain.head; |
02c18891 MM |
323 | int ret; |
324 | ||
325 | do { | |
326 | if (!descr->skb) { | |
59e97327 | 327 | ret = gelic_descr_prepare_rx(card, descr); |
02c18891 MM |
328 | if (ret) |
329 | goto rewind; | |
330 | } | |
331 | descr = descr->next; | |
332 | } while (descr != card->rx_chain.head); | |
333 | ||
334 | return 0; | |
335 | rewind: | |
59e97327 | 336 | gelic_card_release_rx_chain(card); |
02c18891 MM |
337 | return ret; |
338 | } | |
339 | ||
340 | /** | |
59e97327 | 341 | * gelic_card_alloc_rx_skbs - allocates rx skbs in rx descriptor chains |
02c18891 MM |
342 | * @card: card structure |
343 | * | |
59e97327 | 344 | * returns 0 on success, < 0 on failure |
02c18891 | 345 | */ |
59e97327 | 346 | static int gelic_card_alloc_rx_skbs(struct gelic_card *card) |
02c18891 | 347 | { |
59e97327 | 348 | struct gelic_descr_chain *chain; |
02c18891 MM |
349 | int ret; |
350 | chain = &card->rx_chain; | |
59e97327 | 351 | ret = gelic_card_fill_rx_chain(card); |
02c18891 MM |
352 | chain->head = card->rx_top->prev; /* point to the last */ |
353 | return ret; | |
354 | } | |
355 | ||
356 | /** | |
59e97327 | 357 | * gelic_descr_release_tx - processes a used tx descriptor |
02c18891 MM |
358 | * @card: card structure |
359 | * @descr: descriptor to release | |
360 | * | |
361 | * releases a used tx descriptor (unmapping, freeing of skb) | |
362 | */ | |
59e97327 MM |
363 | static void gelic_descr_release_tx(struct gelic_card *card, |
364 | struct gelic_descr *descr) | |
02c18891 | 365 | { |
173261ed | 366 | struct sk_buff *skb = descr->skb; |
02c18891 | 367 | |
59e97327 | 368 | #ifdef DEBUG |
100e1d89 | 369 | BUG_ON(!(be32_to_cpu(descr->data_status) & |
59e97327 MM |
370 | (1 << GELIC_DESCR_TX_DMA_FRAME_TAIL))); |
371 | #endif | |
100e1d89 MM |
372 | dma_unmap_single(ctodev(card), |
373 | be32_to_cpu(descr->buf_addr), skb->len, DMA_TO_DEVICE); | |
173261ed | 374 | dev_kfree_skb_any(skb); |
02c18891 MM |
375 | |
376 | descr->buf_addr = 0; | |
377 | descr->buf_size = 0; | |
378 | descr->next_descr_addr = 0; | |
379 | descr->result_size = 0; | |
380 | descr->valid_size = 0; | |
381 | descr->data_status = 0; | |
382 | descr->data_error = 0; | |
383 | descr->skb = NULL; | |
384 | ||
385 | /* set descr status */ | |
59e97327 | 386 | gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); |
02c18891 MM |
387 | } |
388 | ||
389 | /** | |
59e97327 | 390 | * gelic_card_release_tx_chain - processes sent tx descriptors |
02c18891 MM |
391 | * @card: adapter structure |
392 | * @stop: net_stop sequence | |
393 | * | |
394 | * releases the tx descriptors that gelic has finished with | |
395 | */ | |
59e97327 | 396 | static void gelic_card_release_tx_chain(struct gelic_card *card, int stop) |
02c18891 | 397 | { |
59e97327 MM |
398 | struct gelic_descr_chain *tx_chain; |
399 | enum gelic_descr_dma_status status; | |
02c18891 MM |
400 | int release = 0; |
401 | ||
402 | for (tx_chain = &card->tx_chain; | |
403 | tx_chain->head != tx_chain->tail && tx_chain->tail; | |
404 | tx_chain->tail = tx_chain->tail->next) { | |
59e97327 | 405 | status = gelic_descr_get_status(tx_chain->tail); |
02c18891 | 406 | switch (status) { |
59e97327 MM |
407 | case GELIC_DESCR_DMA_RESPONSE_ERROR: |
408 | case GELIC_DESCR_DMA_PROTECTION_ERROR: | |
409 | case GELIC_DESCR_DMA_FORCE_END: | |
02c18891 MM |
410 | if (printk_ratelimit()) |
411 | dev_info(ctodev(card), | |
412 | "%s: forcing end of tx descriptor " \ | |
413 | "with status %x\n", | |
414 | __func__, status); | |
92548d60 | 415 | card->netdev->stats.tx_dropped++; |
02c18891 MM |
416 | break; |
417 | ||
59e97327 | 418 | case GELIC_DESCR_DMA_COMPLETE: |
48544cc2 | 419 | if (tx_chain->tail->skb) { |
92548d60 MM |
420 | card->netdev->stats.tx_packets++; |
421 | card->netdev->stats.tx_bytes += | |
48544cc2 MM |
422 | tx_chain->tail->skb->len; |
423 | } | |
02c18891 MM |
424 | break; |
425 | ||
59e97327 | 426 | case GELIC_DESCR_DMA_CARDOWNED: |
02c18891 MM |
427 | /* pending tx request */ |
428 | default: | |
59e97327 | 429 | /* any other value (== GELIC_DESCR_DMA_NOT_IN_USE) */ |
48544cc2 MM |
430 | if (!stop) |
431 | goto out; | |
02c18891 | 432 | } |
59e97327 | 433 | gelic_descr_release_tx(card, tx_chain->tail); |
48544cc2 | 434 | release ++; |
02c18891 MM |
435 | } |
436 | out: | |
173261ed | 437 | if (!stop && release) |
02c18891 MM |
438 | netif_wake_queue(card->netdev); |
439 | } | |
440 | ||
441 | /** | |
442 | * gelic_net_set_multi - sets multicast addresses and promisc flags | |
443 | * @netdev: interface device structure | |
444 | * | |
445 | * gelic_net_set_multi configures multicast addresses as needed for the | |
446 | * netdev interface. It also sets up multicast, allmulti and promisc | |
447 | * flags appropriately | |
448 | */ | |
449 | static void gelic_net_set_multi(struct net_device *netdev) | |
450 | { | |
59e97327 | 451 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 MM |
452 | struct dev_mc_list *mc; |
453 | unsigned int i; | |
454 | uint8_t *p; | |
455 | u64 addr; | |
456 | int status; | |
457 | ||
458 | /* clear all multicast address */ | |
459 | status = lv1_net_remove_multicast_address(bus_id(card), dev_id(card), | |
460 | 0, 1); | |
461 | if (status) | |
462 | dev_err(ctodev(card), | |
463 | "lv1_net_remove_multicast_address failed %d\n", | |
464 | status); | |
465 | /* set broadcast address */ | |
466 | status = lv1_net_add_multicast_address(bus_id(card), dev_id(card), | |
467 | GELIC_NET_BROADCAST_ADDR, 0); | |
468 | if (status) | |
469 | dev_err(ctodev(card), | |
470 | "lv1_net_add_multicast_address failed, %d\n", | |
471 | status); | |
472 | ||
473 | if (netdev->flags & IFF_ALLMULTI | |
474 | || netdev->mc_count > GELIC_NET_MC_COUNT_MAX) { /* list max */ | |
475 | status = lv1_net_add_multicast_address(bus_id(card), | |
476 | dev_id(card), | |
477 | 0, 1); | |
478 | if (status) | |
479 | dev_err(ctodev(card), | |
480 | "lv1_net_add_multicast_address failed, %d\n", | |
481 | status); | |
482 | return; | |
483 | } | |
484 | ||
485 | /* set multicast address */ | |
486 | for (mc = netdev->mc_list; mc; mc = mc->next) { | |
487 | addr = 0; | |
488 | p = mc->dmi_addr; | |
489 | for (i = 0; i < ETH_ALEN; i++) { | |
490 | addr <<= 8; | |
491 | addr |= *p++; | |
492 | } | |
493 | status = lv1_net_add_multicast_address(bus_id(card), | |
494 | dev_id(card), | |
495 | addr, 0); | |
496 | if (status) | |
497 | dev_err(ctodev(card), | |
498 | "lv1_net_add_multicast_address failed, %d\n", | |
499 | status); | |
500 | } | |
501 | } | |
502 | ||
503 | /** | |
59e97327 | 504 | * gelic_card_enable_rxdmac - enables the receive DMA controller |
02c18891 MM |
505 | * @card: card structure |
506 | * | |
59e97327 | 507 | * gelic_card_enable_rxdmac enables the DMA controller by setting RX_DMA_EN |
02c18891 MM |
508 | * in the GDADMACCNTR register |
509 | */ | |
59e97327 | 510 | static inline void gelic_card_enable_rxdmac(struct gelic_card *card) |
02c18891 MM |
511 | { |
512 | int status; | |
513 | ||
514 | status = lv1_net_start_rx_dma(bus_id(card), dev_id(card), | |
515 | card->rx_chain.tail->bus_addr, 0); | |
516 | if (status) | |
517 | dev_info(ctodev(card), | |
518 | "lv1_net_start_rx_dma failed, status=%d\n", status); | |
519 | } | |
520 | ||
521 | /** | |
59e97327 | 522 | * gelic_card_disable_rxdmac - disables the receive DMA controller |
02c18891 MM |
523 | * @card: card structure |
524 | * | |
59e97327 | 525 | * gelic_card_disable_rxdmac terminates processing on the DMA controller by |
02c18891 MM |
526 | * turing off DMA and issueing a force end |
527 | */ | |
59e97327 | 528 | static inline void gelic_card_disable_rxdmac(struct gelic_card *card) |
02c18891 MM |
529 | { |
530 | int status; | |
531 | ||
532 | /* this hvc blocks until the DMA in progress really stopped */ | |
533 | status = lv1_net_stop_rx_dma(bus_id(card), dev_id(card), 0); | |
534 | if (status) | |
535 | dev_err(ctodev(card), | |
536 | "lv1_net_stop_rx_dma faild, %d\n", status); | |
537 | } | |
538 | ||
539 | /** | |
59e97327 | 540 | * gelic_card_disable_txdmac - disables the transmit DMA controller |
02c18891 MM |
541 | * @card: card structure |
542 | * | |
59e97327 | 543 | * gelic_card_disable_txdmac terminates processing on the DMA controller by |
02c18891 MM |
544 | * turing off DMA and issueing a force end |
545 | */ | |
59e97327 | 546 | static inline void gelic_card_disable_txdmac(struct gelic_card *card) |
02c18891 MM |
547 | { |
548 | int status; | |
549 | ||
550 | /* this hvc blocks until the DMA in progress really stopped */ | |
551 | status = lv1_net_stop_tx_dma(bus_id(card), dev_id(card), 0); | |
552 | if (status) | |
553 | dev_err(ctodev(card), | |
554 | "lv1_net_stop_tx_dma faild, status=%d\n", status); | |
555 | } | |
556 | ||
557 | /** | |
558 | * gelic_net_stop - called upon ifconfig down | |
559 | * @netdev: interface device structure | |
560 | * | |
561 | * always returns 0 | |
562 | */ | |
563 | static int gelic_net_stop(struct net_device *netdev) | |
564 | { | |
59e97327 | 565 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 | 566 | |
bea3348e | 567 | napi_disable(&card->napi); |
02c18891 MM |
568 | netif_stop_queue(netdev); |
569 | ||
570 | /* turn off DMA, force end */ | |
59e97327 MM |
571 | gelic_card_disable_rxdmac(card); |
572 | gelic_card_disable_txdmac(card); | |
02c18891 | 573 | |
59e97327 | 574 | gelic_card_set_irq_mask(card, 0); |
02c18891 MM |
575 | |
576 | /* disconnect event port */ | |
577 | free_irq(card->netdev->irq, card->netdev); | |
578 | ps3_sb_event_receive_port_destroy(card->dev, card->netdev->irq); | |
579 | card->netdev->irq = NO_IRQ; | |
580 | ||
581 | netif_carrier_off(netdev); | |
582 | ||
583 | /* release chains */ | |
59e97327 MM |
584 | gelic_card_release_tx_chain(card, 1); |
585 | gelic_card_release_rx_chain(card); | |
02c18891 | 586 | |
59e97327 MM |
587 | gelic_card_free_chain(card, card->tx_top); |
588 | gelic_card_free_chain(card, card->rx_top); | |
02c18891 MM |
589 | |
590 | return 0; | |
591 | } | |
592 | ||
593 | /** | |
59e97327 | 594 | * gelic_card_get_next_tx_descr - returns the next available tx descriptor |
02c18891 MM |
595 | * @card: device structure to get descriptor from |
596 | * | |
597 | * returns the address of the next descriptor, or NULL if not available. | |
598 | */ | |
59e97327 MM |
599 | static struct gelic_descr * |
600 | gelic_card_get_next_tx_descr(struct gelic_card *card) | |
02c18891 MM |
601 | { |
602 | if (!card->tx_chain.head) | |
603 | return NULL; | |
173261ed | 604 | /* see if the next descriptor is free */ |
02c18891 | 605 | if (card->tx_chain.tail != card->tx_chain.head->next && |
59e97327 MM |
606 | gelic_descr_get_status(card->tx_chain.head) == |
607 | GELIC_DESCR_DMA_NOT_IN_USE) | |
02c18891 MM |
608 | return card->tx_chain.head; |
609 | else | |
610 | return NULL; | |
611 | ||
612 | } | |
613 | ||
614 | /** | |
59e97327 | 615 | * gelic_descr_set_tx_cmdstat - sets the tx descriptor command field |
02c18891 MM |
616 | * @descr: descriptor structure to fill out |
617 | * @skb: packet to consider | |
02c18891 MM |
618 | * |
619 | * fills out the command and status field of the descriptor structure, | |
620 | * depending on hardware checksum settings. This function assumes a wmb() | |
621 | * has executed before. | |
622 | */ | |
59e97327 MM |
623 | static void gelic_descr_set_tx_cmdstat(struct gelic_descr *descr, |
624 | struct sk_buff *skb) | |
02c18891 | 625 | { |
02c18891 | 626 | if (skb->ip_summed != CHECKSUM_PARTIAL) |
100e1d89 | 627 | descr->dmac_cmd_status = |
59e97327 MM |
628 | cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM | |
629 | GELIC_DESCR_TX_DMA_FRAME_TAIL); | |
02c18891 MM |
630 | else { |
631 | /* is packet ip? | |
632 | * if yes: tcp? udp? */ | |
633 | if (skb->protocol == htons(ETH_P_IP)) { | |
634 | if (ip_hdr(skb)->protocol == IPPROTO_TCP) | |
635 | descr->dmac_cmd_status = | |
59e97327 MM |
636 | cpu_to_be32(GELIC_DESCR_DMA_CMD_TCP_CHKSUM | |
637 | GELIC_DESCR_TX_DMA_FRAME_TAIL); | |
173261ed | 638 | |
02c18891 MM |
639 | else if (ip_hdr(skb)->protocol == IPPROTO_UDP) |
640 | descr->dmac_cmd_status = | |
59e97327 MM |
641 | cpu_to_be32(GELIC_DESCR_DMA_CMD_UDP_CHKSUM | |
642 | GELIC_DESCR_TX_DMA_FRAME_TAIL); | |
02c18891 MM |
643 | else /* |
644 | * the stack should checksum non-tcp and non-udp | |
645 | * packets on his own: NETIF_F_IP_CSUM | |
646 | */ | |
647 | descr->dmac_cmd_status = | |
59e97327 MM |
648 | cpu_to_be32(GELIC_DESCR_DMA_CMD_NO_CHKSUM | |
649 | GELIC_DESCR_TX_DMA_FRAME_TAIL); | |
02c18891 MM |
650 | } |
651 | } | |
652 | } | |
653 | ||
173261ed MM |
654 | static inline struct sk_buff *gelic_put_vlan_tag(struct sk_buff *skb, |
655 | unsigned short tag) | |
656 | { | |
657 | struct vlan_ethhdr *veth; | |
658 | static unsigned int c; | |
659 | ||
660 | if (skb_headroom(skb) < VLAN_HLEN) { | |
661 | struct sk_buff *sk_tmp = skb; | |
662 | pr_debug("%s: hd=%d c=%ud\n", __func__, skb_headroom(skb), c); | |
663 | skb = skb_realloc_headroom(sk_tmp, VLAN_HLEN); | |
664 | if (!skb) | |
665 | return NULL; | |
666 | dev_kfree_skb_any(sk_tmp); | |
667 | } | |
668 | veth = (struct vlan_ethhdr *)skb_push(skb, VLAN_HLEN); | |
669 | ||
670 | /* Move the mac addresses to the top of buffer */ | |
671 | memmove(skb->data, skb->data + VLAN_HLEN, 2 * ETH_ALEN); | |
672 | ||
673 | veth->h_vlan_proto = __constant_htons(ETH_P_8021Q); | |
674 | veth->h_vlan_TCI = htons(tag); | |
675 | ||
676 | return skb; | |
677 | } | |
678 | ||
02c18891 | 679 | /** |
59e97327 | 680 | * gelic_descr_prepare_tx - get dma address of skb_data |
02c18891 MM |
681 | * @card: card structure |
682 | * @descr: descriptor structure | |
683 | * @skb: packet to use | |
684 | * | |
685 | * returns 0 on success, <0 on failure. | |
686 | * | |
687 | */ | |
59e97327 MM |
688 | static int gelic_descr_prepare_tx(struct gelic_card *card, |
689 | struct gelic_descr *descr, | |
690 | struct sk_buff *skb) | |
02c18891 | 691 | { |
173261ed | 692 | dma_addr_t buf; |
02c18891 | 693 | |
02c18891 | 694 | if (card->vlan_index != -1) { |
173261ed MM |
695 | struct sk_buff *skb_tmp; |
696 | skb_tmp = gelic_put_vlan_tag(skb, | |
697 | card->vlan_id[card->vlan_index]); | |
698 | if (!skb_tmp) | |
699 | return -ENOMEM; | |
700 | skb = skb_tmp; | |
02c18891 MM |
701 | } |
702 | ||
173261ed | 703 | buf = dma_map_single(ctodev(card), skb->data, skb->len, DMA_TO_DEVICE); |
02c18891 | 704 | |
173261ed | 705 | if (!buf) { |
02c18891 MM |
706 | dev_err(ctodev(card), |
707 | "dma map 2 failed (%p, %i). Dropping packet\n", | |
173261ed | 708 | skb->data, skb->len); |
02c18891 MM |
709 | return -ENOMEM; |
710 | } | |
711 | ||
100e1d89 MM |
712 | descr->buf_addr = cpu_to_be32(buf); |
713 | descr->buf_size = cpu_to_be32(skb->len); | |
173261ed | 714 | descr->skb = skb; |
02c18891 | 715 | descr->data_status = 0; |
173261ed | 716 | descr->next_descr_addr = 0; /* terminate hw descr */ |
59e97327 | 717 | gelic_descr_set_tx_cmdstat(descr, skb); |
48544cc2 MM |
718 | |
719 | /* bump free descriptor pointer */ | |
173261ed | 720 | card->tx_chain.head = descr->next; |
02c18891 MM |
721 | return 0; |
722 | } | |
723 | ||
724 | /** | |
59e97327 | 725 | * gelic_card_kick_txdma - enables TX DMA processing |
02c18891 MM |
726 | * @card: card structure |
727 | * @descr: descriptor address to enable TX processing at | |
728 | * | |
729 | */ | |
59e97327 MM |
730 | static int gelic_card_kick_txdma(struct gelic_card *card, |
731 | struct gelic_descr *descr) | |
02c18891 | 732 | { |
48544cc2 | 733 | int status = 0; |
02c18891 MM |
734 | |
735 | if (card->tx_dma_progress) | |
736 | return 0; | |
737 | ||
59e97327 | 738 | if (gelic_descr_get_status(descr) == GELIC_DESCR_DMA_CARDOWNED) { |
02c18891 | 739 | card->tx_dma_progress = 1; |
dc029ad9 MM |
740 | status = lv1_net_start_tx_dma(bus_id(card), dev_id(card), |
741 | descr->bus_addr, 0); | |
742 | if (status) | |
02c18891 | 743 | dev_info(ctodev(card), "lv1_net_start_txdma failed," \ |
dc029ad9 | 744 | "status=%d\n", status); |
02c18891 MM |
745 | } |
746 | return status; | |
747 | } | |
748 | ||
749 | /** | |
750 | * gelic_net_xmit - transmits a frame over the device | |
751 | * @skb: packet to send out | |
752 | * @netdev: interface device structure | |
753 | * | |
754 | * returns 0 on success, <0 on failure | |
755 | */ | |
756 | static int gelic_net_xmit(struct sk_buff *skb, struct net_device *netdev) | |
757 | { | |
59e97327 MM |
758 | struct gelic_card *card = netdev_priv(netdev); |
759 | struct gelic_descr *descr; | |
02c18891 MM |
760 | int result; |
761 | unsigned long flags; | |
762 | ||
763 | spin_lock_irqsave(&card->tx_dma_lock, flags); | |
764 | ||
59e97327 | 765 | gelic_card_release_tx_chain(card, 0); |
48544cc2 | 766 | |
59e97327 | 767 | descr = gelic_card_get_next_tx_descr(card); |
02c18891 | 768 | if (!descr) { |
48544cc2 MM |
769 | /* |
770 | * no more descriptors free | |
771 | */ | |
02c18891 MM |
772 | netif_stop_queue(netdev); |
773 | spin_unlock_irqrestore(&card->tx_dma_lock, flags); | |
774 | return NETDEV_TX_BUSY; | |
775 | } | |
02c18891 | 776 | |
59e97327 | 777 | result = gelic_descr_prepare_tx(card, descr, skb); |
48544cc2 MM |
778 | if (result) { |
779 | /* | |
780 | * DMA map failed. As chanses are that failure | |
781 | * would continue, just release skb and return | |
782 | */ | |
92548d60 | 783 | card->netdev->stats.tx_dropped++; |
48544cc2 MM |
784 | dev_kfree_skb_any(skb); |
785 | spin_unlock_irqrestore(&card->tx_dma_lock, flags); | |
786 | return NETDEV_TX_OK; | |
787 | } | |
788 | /* | |
789 | * link this prepared descriptor to previous one | |
790 | * to achieve high performance | |
791 | */ | |
100e1d89 | 792 | descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr); |
02c18891 MM |
793 | /* |
794 | * as hardware descriptor is modified in the above lines, | |
795 | * ensure that the hardware sees it | |
796 | */ | |
797 | wmb(); | |
59e97327 | 798 | if (gelic_card_kick_txdma(card, descr)) { |
48544cc2 MM |
799 | /* |
800 | * kick failed. | |
801 | * release descriptors which were just prepared | |
802 | */ | |
92548d60 | 803 | card->netdev->stats.tx_dropped++; |
59e97327 MM |
804 | gelic_descr_release_tx(card, descr); |
805 | gelic_descr_release_tx(card, descr->next); | |
48544cc2 MM |
806 | card->tx_chain.tail = descr->next->next; |
807 | dev_info(ctodev(card), "%s: kick failure\n", __func__); | |
808 | } else { | |
809 | /* OK, DMA started/reserved */ | |
810 | netdev->trans_start = jiffies; | |
811 | } | |
02c18891 | 812 | |
02c18891 MM |
813 | spin_unlock_irqrestore(&card->tx_dma_lock, flags); |
814 | return NETDEV_TX_OK; | |
02c18891 MM |
815 | } |
816 | ||
817 | /** | |
818 | * gelic_net_pass_skb_up - takes an skb from a descriptor and passes it on | |
819 | * @descr: descriptor to process | |
820 | * @card: card structure | |
821 | * | |
822 | * iommu-unmaps the skb, fills out skb structure and passes the data to the | |
823 | * stack. The descriptor state is not changed. | |
824 | */ | |
59e97327 MM |
825 | static void gelic_net_pass_skb_up(struct gelic_descr *descr, |
826 | struct gelic_card *card) | |
02c18891 MM |
827 | { |
828 | struct sk_buff *skb; | |
829 | struct net_device *netdev; | |
830 | u32 data_status, data_error; | |
831 | ||
100e1d89 MM |
832 | data_status = be32_to_cpu(descr->data_status); |
833 | data_error = be32_to_cpu(descr->data_error); | |
02c18891 MM |
834 | netdev = card->netdev; |
835 | /* unmap skb buffer */ | |
836 | skb = descr->skb; | |
100e1d89 MM |
837 | dma_unmap_single(ctodev(card), |
838 | be32_to_cpu(descr->buf_addr), GELIC_NET_MAX_MTU, | |
02c18891 MM |
839 | DMA_FROM_DEVICE); |
840 | ||
100e1d89 MM |
841 | skb_put(skb, descr->valid_size ? |
842 | be32_to_cpu(descr->valid_size) : | |
843 | be32_to_cpu(descr->result_size)); | |
02c18891 MM |
844 | if (!descr->valid_size) |
845 | dev_info(ctodev(card), "buffer full %x %x %x\n", | |
100e1d89 MM |
846 | be32_to_cpu(descr->result_size), |
847 | be32_to_cpu(descr->buf_size), | |
848 | be32_to_cpu(descr->dmac_cmd_status)); | |
02c18891 MM |
849 | |
850 | descr->skb = NULL; | |
851 | /* | |
852 | * the card put 2 bytes vlan tag in front | |
853 | * of the ethernet frame | |
854 | */ | |
855 | skb_pull(skb, 2); | |
856 | skb->protocol = eth_type_trans(skb, netdev); | |
857 | ||
858 | /* checksum offload */ | |
859 | if (card->rx_csum) { | |
59e97327 MM |
860 | if ((data_status & GELIC_DESCR_DATA_STATUS_CHK_MASK) && |
861 | (!(data_error & GELIC_DESCR_DATA_ERROR_CHK_MASK))) | |
02c18891 MM |
862 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
863 | else | |
864 | skb->ip_summed = CHECKSUM_NONE; | |
865 | } else | |
866 | skb->ip_summed = CHECKSUM_NONE; | |
867 | ||
868 | /* update netdevice statistics */ | |
92548d60 MM |
869 | card->netdev->stats.rx_packets++; |
870 | card->netdev->stats.rx_bytes += skb->len; | |
02c18891 MM |
871 | |
872 | /* pass skb up to stack */ | |
873 | netif_receive_skb(skb); | |
874 | } | |
875 | ||
876 | /** | |
59e97327 | 877 | * gelic_card_decode_one_descr - processes an rx descriptor |
02c18891 MM |
878 | * @card: card structure |
879 | * | |
880 | * returns 1 if a packet has been sent to the stack, otherwise 0 | |
881 | * | |
882 | * processes an rx descriptor by iommu-unmapping the data buffer and passing | |
883 | * the packet up to the stack | |
884 | */ | |
59e97327 | 885 | static int gelic_card_decode_one_descr(struct gelic_card *card) |
02c18891 | 886 | { |
59e97327 MM |
887 | enum gelic_descr_dma_status status; |
888 | struct gelic_descr_chain *chain = &card->rx_chain; | |
889 | struct gelic_descr *descr = chain->tail; | |
02c18891 MM |
890 | int dmac_chain_ended; |
891 | ||
59e97327 | 892 | status = gelic_descr_get_status(descr); |
02c18891 MM |
893 | /* is this descriptor terminated with next_descr == NULL? */ |
894 | dmac_chain_ended = | |
100e1d89 | 895 | be32_to_cpu(descr->dmac_cmd_status) & |
59e97327 | 896 | GELIC_DESCR_RX_DMA_CHAIN_END; |
02c18891 | 897 | |
59e97327 | 898 | if (status == GELIC_DESCR_DMA_CARDOWNED) |
02c18891 MM |
899 | return 0; |
900 | ||
59e97327 | 901 | if (status == GELIC_DESCR_DMA_NOT_IN_USE) { |
02c18891 MM |
902 | dev_dbg(ctodev(card), "dormant descr? %p\n", descr); |
903 | return 0; | |
904 | } | |
905 | ||
59e97327 MM |
906 | if ((status == GELIC_DESCR_DMA_RESPONSE_ERROR) || |
907 | (status == GELIC_DESCR_DMA_PROTECTION_ERROR) || | |
908 | (status == GELIC_DESCR_DMA_FORCE_END)) { | |
02c18891 MM |
909 | dev_info(ctodev(card), "dropping RX descriptor with state %x\n", |
910 | status); | |
92548d60 | 911 | card->netdev->stats.rx_dropped++; |
02c18891 MM |
912 | goto refill; |
913 | } | |
914 | ||
59e97327 | 915 | if (status == GELIC_DESCR_DMA_BUFFER_FULL) { |
fe6d3a40 MM |
916 | /* |
917 | * Buffer full would occur if and only if | |
918 | * the frame length was longer than the size of this | |
919 | * descriptor's buffer. If the frame length was equal | |
920 | * to or shorter than buffer'size, FRAME_END condition | |
921 | * would occur. | |
922 | * Anyway this frame was longer than the MTU, | |
923 | * just drop it. | |
924 | */ | |
925 | dev_info(ctodev(card), "overlength frame\n"); | |
926 | goto refill; | |
927 | } | |
928 | /* | |
929 | * descriptoers any other than FRAME_END here should | |
930 | * be treated as error. | |
931 | */ | |
59e97327 | 932 | if (status != GELIC_DESCR_DMA_FRAME_END) { |
02c18891 MM |
933 | dev_dbg(ctodev(card), "RX descriptor with state %x\n", |
934 | status); | |
935 | goto refill; | |
936 | } | |
937 | ||
938 | /* ok, we've got a packet in descr */ | |
fe6d3a40 | 939 | gelic_net_pass_skb_up(descr, card); |
02c18891 | 940 | refill: |
fe6d3a40 MM |
941 | /* |
942 | * So that always DMAC can see the end | |
943 | * of the descriptor chain to avoid | |
944 | * from unwanted DMAC overrun. | |
945 | */ | |
946 | descr->next_descr_addr = 0; | |
02c18891 MM |
947 | |
948 | /* change the descriptor state: */ | |
59e97327 | 949 | gelic_descr_set_status(descr, GELIC_DESCR_DMA_NOT_IN_USE); |
02c18891 | 950 | |
fe6d3a40 MM |
951 | /* |
952 | * this call can fail, but for now, just leave this | |
953 | * decriptor without skb | |
02c18891 | 954 | */ |
59e97327 | 955 | gelic_descr_prepare_rx(card, descr); |
fe6d3a40 | 956 | |
02c18891 MM |
957 | chain->head = descr; |
958 | chain->tail = descr->next; | |
fe6d3a40 MM |
959 | |
960 | /* | |
961 | * Set this descriptor the end of the chain. | |
962 | */ | |
100e1d89 | 963 | descr->prev->next_descr_addr = cpu_to_be32(descr->bus_addr); |
02c18891 | 964 | |
fe6d3a40 MM |
965 | /* |
966 | * If dmac chain was met, DMAC stopped. | |
967 | * thus re-enable it | |
968 | */ | |
02c18891 | 969 | if (dmac_chain_ended) { |
583aae10 MM |
970 | card->rx_dma_restart_required = 1; |
971 | dev_dbg(ctodev(card), "reenable rx dma scheduled\n"); | |
02c18891 MM |
972 | } |
973 | ||
974 | return 1; | |
975 | } | |
976 | ||
977 | /** | |
978 | * gelic_net_poll - NAPI poll function called by the stack to return packets | |
979 | * @netdev: interface device structure | |
980 | * @budget: number of packets we can pass to the stack at most | |
981 | * | |
982 | * returns 0 if no more packets available to the driver/stack. Returns 1, | |
983 | * if the quota is exceeded, but the driver has still packets. | |
984 | * | |
985 | */ | |
bea3348e | 986 | static int gelic_net_poll(struct napi_struct *napi, int budget) |
02c18891 | 987 | { |
59e97327 | 988 | struct gelic_card *card = container_of(napi, struct gelic_card, napi); |
bea3348e SH |
989 | struct net_device *netdev = card->netdev; |
990 | int packets_done = 0; | |
02c18891 | 991 | |
bea3348e | 992 | while (packets_done < budget) { |
59e97327 | 993 | if (!gelic_card_decode_one_descr(card)) |
02c18891 | 994 | break; |
bea3348e SH |
995 | |
996 | packets_done++; | |
02c18891 | 997 | } |
bea3348e SH |
998 | |
999 | if (packets_done < budget) { | |
1000 | netif_rx_complete(netdev, napi); | |
59e97327 | 1001 | gelic_card_rx_irq_on(card); |
bea3348e SH |
1002 | } |
1003 | return packets_done; | |
02c18891 | 1004 | } |
02c18891 MM |
1005 | /** |
1006 | * gelic_net_change_mtu - changes the MTU of an interface | |
1007 | * @netdev: interface device structure | |
1008 | * @new_mtu: new MTU value | |
1009 | * | |
1010 | * returns 0 on success, <0 on failure | |
1011 | */ | |
1012 | static int gelic_net_change_mtu(struct net_device *netdev, int new_mtu) | |
1013 | { | |
1014 | /* no need to re-alloc skbs or so -- the max mtu is about 2.3k | |
1015 | * and mtu is outbound only anyway */ | |
1016 | if ((new_mtu < GELIC_NET_MIN_MTU) || | |
1017 | (new_mtu > GELIC_NET_MAX_MTU)) { | |
1018 | return -EINVAL; | |
1019 | } | |
1020 | netdev->mtu = new_mtu; | |
1021 | return 0; | |
1022 | } | |
1023 | ||
1024 | /** | |
59e97327 | 1025 | * gelic_card_interrupt - event handler for gelic_net |
02c18891 | 1026 | */ |
59e97327 | 1027 | static irqreturn_t gelic_card_interrupt(int irq, void *ptr) |
02c18891 MM |
1028 | { |
1029 | unsigned long flags; | |
1030 | struct net_device *netdev = ptr; | |
59e97327 | 1031 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 MM |
1032 | u64 status; |
1033 | ||
1034 | status = card->irq_status; | |
1035 | ||
1036 | if (!status) | |
1037 | return IRQ_NONE; | |
1038 | ||
583aae10 MM |
1039 | if (card->rx_dma_restart_required) { |
1040 | card->rx_dma_restart_required = 0; | |
59e97327 | 1041 | gelic_card_enable_rxdmac(card); |
583aae10 MM |
1042 | } |
1043 | ||
59e97327 MM |
1044 | if (status & GELIC_CARD_RXINT) { |
1045 | gelic_card_rx_irq_off(card); | |
bea3348e | 1046 | netif_rx_schedule(netdev, &card->napi); |
02c18891 MM |
1047 | } |
1048 | ||
59e97327 | 1049 | if (status & GELIC_CARD_TXINT) { |
02c18891 MM |
1050 | spin_lock_irqsave(&card->tx_dma_lock, flags); |
1051 | card->tx_dma_progress = 0; | |
59e97327 | 1052 | gelic_card_release_tx_chain(card, 0); |
48544cc2 | 1053 | /* kick outstanding tx descriptor if any */ |
59e97327 | 1054 | gelic_card_kick_txdma(card, card->tx_chain.tail); |
02c18891 | 1055 | spin_unlock_irqrestore(&card->tx_dma_lock, flags); |
02c18891 | 1056 | } |
01fed4c2 MM |
1057 | |
1058 | /* ether port status changed */ | |
1059 | if (status & GELIC_CARD_PORT_STATUS_CHANGED) | |
1060 | gelic_card_get_ether_port_status(card, 1); | |
02c18891 MM |
1061 | return IRQ_HANDLED; |
1062 | } | |
1063 | ||
1064 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
1065 | /** | |
1066 | * gelic_net_poll_controller - artificial interrupt for netconsole etc. | |
1067 | * @netdev: interface device structure | |
1068 | * | |
1069 | * see Documentation/networking/netconsole.txt | |
1070 | */ | |
1071 | static void gelic_net_poll_controller(struct net_device *netdev) | |
1072 | { | |
59e97327 | 1073 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 | 1074 | |
59e97327 MM |
1075 | gelic_card_set_irq_mask(card, 0); |
1076 | gelic_card_interrupt(netdev->irq, netdev); | |
1077 | gelic_card_set_irq_mask(card, card->ghiintmask); | |
02c18891 MM |
1078 | } |
1079 | #endif /* CONFIG_NET_POLL_CONTROLLER */ | |
1080 | ||
1081 | /** | |
59e97327 | 1082 | * gelic_card_open - open device and map dma region |
02c18891 MM |
1083 | * @card: card structure |
1084 | */ | |
59e97327 | 1085 | static int gelic_card_open(struct gelic_card *card) |
02c18891 MM |
1086 | { |
1087 | int result; | |
1088 | ||
1089 | result = ps3_sb_event_receive_port_setup(card->dev, PS3_BINDING_CPU_ANY, | |
1090 | &card->netdev->irq); | |
1091 | ||
1092 | if (result) { | |
1093 | dev_info(ctodev(card), | |
59e97327 | 1094 | "%s:%d: recieve_port_setup failed (%d)\n", |
02c18891 MM |
1095 | __func__, __LINE__, result); |
1096 | result = -EPERM; | |
1097 | goto fail_alloc_irq; | |
1098 | } | |
1099 | ||
59e97327 | 1100 | result = request_irq(card->netdev->irq, gelic_card_interrupt, |
f0861f82 | 1101 | IRQF_DISABLED, card->netdev->name, card->netdev); |
02c18891 MM |
1102 | |
1103 | if (result) { | |
1104 | dev_info(ctodev(card), "%s:%d: request_irq failed (%d)\n", | |
1105 | __func__, __LINE__, result); | |
1106 | goto fail_request_irq; | |
1107 | } | |
1108 | ||
1109 | return 0; | |
1110 | ||
1111 | fail_request_irq: | |
1112 | ps3_sb_event_receive_port_destroy(card->dev, card->netdev->irq); | |
1113 | card->netdev->irq = NO_IRQ; | |
1114 | fail_alloc_irq: | |
1115 | return result; | |
1116 | } | |
1117 | ||
1118 | ||
1119 | /** | |
1120 | * gelic_net_open - called upon ifonfig up | |
1121 | * @netdev: interface device structure | |
1122 | * | |
1123 | * returns 0 on success, <0 on failure | |
1124 | * | |
1125 | * gelic_net_open allocates all the descriptors and memory needed for | |
1126 | * operation, sets up multicast list and enables interrupts | |
1127 | */ | |
1128 | static int gelic_net_open(struct net_device *netdev) | |
1129 | { | |
59e97327 | 1130 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 MM |
1131 | |
1132 | dev_dbg(ctodev(card), " -> %s:%d\n", __func__, __LINE__); | |
1133 | ||
59e97327 | 1134 | gelic_card_open(card); |
02c18891 | 1135 | |
59e97327 MM |
1136 | if (gelic_card_init_chain(card, &card->tx_chain, |
1137 | card->descr, GELIC_NET_TX_DESCRIPTORS)) | |
02c18891 | 1138 | goto alloc_tx_failed; |
59e97327 MM |
1139 | if (gelic_card_init_chain(card, &card->rx_chain, |
1140 | card->descr + GELIC_NET_TX_DESCRIPTORS, | |
1141 | GELIC_NET_RX_DESCRIPTORS)) | |
02c18891 MM |
1142 | goto alloc_rx_failed; |
1143 | ||
1144 | /* head of chain */ | |
1145 | card->tx_top = card->tx_chain.head; | |
1146 | card->rx_top = card->rx_chain.head; | |
1147 | dev_dbg(ctodev(card), "descr rx %p, tx %p, size %#lx, num %#x\n", | |
59e97327 | 1148 | card->rx_top, card->tx_top, sizeof(struct gelic_descr), |
02c18891 MM |
1149 | GELIC_NET_RX_DESCRIPTORS); |
1150 | /* allocate rx skbs */ | |
59e97327 | 1151 | if (gelic_card_alloc_rx_skbs(card)) |
02c18891 MM |
1152 | goto alloc_skbs_failed; |
1153 | ||
bea3348e SH |
1154 | napi_enable(&card->napi); |
1155 | ||
02c18891 | 1156 | card->tx_dma_progress = 0; |
01fed4c2 MM |
1157 | card->ghiintmask = GELIC_CARD_RXINT | GELIC_CARD_TXINT | |
1158 | GELIC_CARD_PORT_STATUS_CHANGED; | |
02c18891 | 1159 | |
59e97327 MM |
1160 | gelic_card_set_irq_mask(card, card->ghiintmask); |
1161 | gelic_card_enable_rxdmac(card); | |
02c18891 MM |
1162 | |
1163 | netif_start_queue(netdev); | |
01fed4c2 | 1164 | gelic_card_get_ether_port_status(card, 1); |
02c18891 MM |
1165 | |
1166 | return 0; | |
1167 | ||
1168 | alloc_skbs_failed: | |
59e97327 | 1169 | gelic_card_free_chain(card, card->rx_top); |
02c18891 | 1170 | alloc_rx_failed: |
59e97327 | 1171 | gelic_card_free_chain(card, card->tx_top); |
02c18891 MM |
1172 | alloc_tx_failed: |
1173 | return -ENOMEM; | |
1174 | } | |
1175 | ||
59e97327 MM |
1176 | static void gelic_net_get_drvinfo(struct net_device *netdev, |
1177 | struct ethtool_drvinfo *info) | |
02c18891 MM |
1178 | { |
1179 | strncpy(info->driver, DRV_NAME, sizeof(info->driver) - 1); | |
1180 | strncpy(info->version, DRV_VERSION, sizeof(info->version) - 1); | |
1181 | } | |
1182 | ||
59e97327 MM |
1183 | static int gelic_ether_get_settings(struct net_device *netdev, |
1184 | struct ethtool_cmd *cmd) | |
02c18891 | 1185 | { |
59e97327 | 1186 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 | 1187 | |
01fed4c2 MM |
1188 | gelic_card_get_ether_port_status(card, 0); |
1189 | ||
1190 | if (card->ether_port_status & GELIC_LV1_ETHER_FULL_DUPLEX) | |
1191 | cmd->duplex = DUPLEX_FULL; | |
1192 | else | |
1193 | cmd->duplex = DUPLEX_HALF; | |
1194 | ||
1195 | switch (card->ether_port_status & GELIC_LV1_ETHER_SPEED_MASK) { | |
1196 | case GELIC_LV1_ETHER_SPEED_10: | |
1197 | cmd->speed = SPEED_10; | |
1198 | break; | |
1199 | case GELIC_LV1_ETHER_SPEED_100: | |
1200 | cmd->speed = SPEED_100; | |
1201 | break; | |
1202 | case GELIC_LV1_ETHER_SPEED_1000: | |
1203 | cmd->speed = SPEED_1000; | |
1204 | break; | |
1205 | default: | |
1206 | pr_info("%s: speed unknown\n", __func__); | |
1207 | cmd->speed = SPEED_10; | |
1208 | break; | |
02c18891 | 1209 | } |
01fed4c2 | 1210 | |
02c18891 MM |
1211 | cmd->supported = SUPPORTED_TP | SUPPORTED_Autoneg | |
1212 | SUPPORTED_10baseT_Half | SUPPORTED_10baseT_Full | | |
1213 | SUPPORTED_100baseT_Half | SUPPORTED_100baseT_Full | | |
1214 | SUPPORTED_1000baseT_Half | SUPPORTED_1000baseT_Full; | |
1215 | cmd->advertising = cmd->supported; | |
02c18891 MM |
1216 | cmd->autoneg = AUTONEG_ENABLE; /* always enabled */ |
1217 | cmd->port = PORT_TP; | |
1218 | ||
1219 | return 0; | |
1220 | } | |
1221 | ||
02c18891 MM |
1222 | static int gelic_net_nway_reset(struct net_device *netdev) |
1223 | { | |
1224 | if (netif_running(netdev)) { | |
1225 | gelic_net_stop(netdev); | |
1226 | gelic_net_open(netdev); | |
1227 | } | |
1228 | return 0; | |
1229 | } | |
1230 | ||
02c18891 MM |
1231 | static u32 gelic_net_get_rx_csum(struct net_device *netdev) |
1232 | { | |
59e97327 | 1233 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 MM |
1234 | |
1235 | return card->rx_csum; | |
1236 | } | |
1237 | ||
1238 | static int gelic_net_set_rx_csum(struct net_device *netdev, u32 data) | |
1239 | { | |
59e97327 | 1240 | struct gelic_card *card = netdev_priv(netdev); |
02c18891 MM |
1241 | |
1242 | card->rx_csum = data; | |
1243 | return 0; | |
1244 | } | |
1245 | ||
1246 | static struct ethtool_ops gelic_net_ethtool_ops = { | |
1247 | .get_drvinfo = gelic_net_get_drvinfo, | |
59e97327 | 1248 | .get_settings = gelic_ether_get_settings, |
7bc56b92 | 1249 | .get_link = ethtool_op_get_link, |
02c18891 | 1250 | .nway_reset = gelic_net_nway_reset, |
7bc56b92 MM |
1251 | .get_tx_csum = ethtool_op_get_tx_csum, |
1252 | .set_tx_csum = ethtool_op_set_tx_csum, | |
02c18891 MM |
1253 | .get_rx_csum = gelic_net_get_rx_csum, |
1254 | .set_rx_csum = gelic_net_set_rx_csum, | |
1255 | }; | |
02c18891 MM |
1256 | |
1257 | /** | |
1258 | * gelic_net_tx_timeout_task - task scheduled by the watchdog timeout | |
1259 | * function (to be called not under interrupt status) | |
1260 | * @work: work is context of tx timout task | |
1261 | * | |
1262 | * called as task when tx hangs, resets interface (if interface is up) | |
1263 | */ | |
1264 | static void gelic_net_tx_timeout_task(struct work_struct *work) | |
1265 | { | |
59e97327 MM |
1266 | struct gelic_card *card = |
1267 | container_of(work, struct gelic_card, tx_timeout_task); | |
02c18891 MM |
1268 | struct net_device *netdev = card->netdev; |
1269 | ||
1270 | dev_info(ctodev(card), "%s:Timed out. Restarting... \n", __func__); | |
1271 | ||
1272 | if (!(netdev->flags & IFF_UP)) | |
1273 | goto out; | |
1274 | ||
1275 | netif_device_detach(netdev); | |
1276 | gelic_net_stop(netdev); | |
1277 | ||
1278 | gelic_net_open(netdev); | |
1279 | netif_device_attach(netdev); | |
1280 | ||
1281 | out: | |
1282 | atomic_dec(&card->tx_timeout_task_counter); | |
1283 | } | |
1284 | ||
1285 | /** | |
1286 | * gelic_net_tx_timeout - called when the tx timeout watchdog kicks in. | |
1287 | * @netdev: interface device structure | |
1288 | * | |
1289 | * called, if tx hangs. Schedules a task that resets the interface | |
1290 | */ | |
1291 | static void gelic_net_tx_timeout(struct net_device *netdev) | |
1292 | { | |
59e97327 | 1293 | struct gelic_card *card; |
02c18891 MM |
1294 | |
1295 | card = netdev_priv(netdev); | |
1296 | atomic_inc(&card->tx_timeout_task_counter); | |
1297 | if (netdev->flags & IFF_UP) | |
1298 | schedule_work(&card->tx_timeout_task); | |
1299 | else | |
1300 | atomic_dec(&card->tx_timeout_task_counter); | |
1301 | } | |
1302 | ||
1303 | /** | |
59e97327 | 1304 | * gelic_ether_setup_netdev_ops - initialization of net_device operations |
02c18891 MM |
1305 | * @netdev: net_device structure |
1306 | * | |
1307 | * fills out function pointers in the net_device structure | |
1308 | */ | |
59e97327 | 1309 | static void gelic_ether_setup_netdev_ops(struct net_device *netdev) |
02c18891 MM |
1310 | { |
1311 | netdev->open = &gelic_net_open; | |
1312 | netdev->stop = &gelic_net_stop; | |
1313 | netdev->hard_start_xmit = &gelic_net_xmit; | |
02c18891 MM |
1314 | netdev->set_multicast_list = &gelic_net_set_multi; |
1315 | netdev->change_mtu = &gelic_net_change_mtu; | |
1316 | /* tx watchdog */ | |
1317 | netdev->tx_timeout = &gelic_net_tx_timeout; | |
1318 | netdev->watchdog_timeo = GELIC_NET_WATCHDOG_TIMEOUT; | |
02c18891 | 1319 | netdev->ethtool_ops = &gelic_net_ethtool_ops; |
02c18891 MM |
1320 | } |
1321 | ||
1322 | /** | |
1323 | * gelic_net_setup_netdev - initialization of net_device | |
1324 | * @card: card structure | |
1325 | * | |
1326 | * Returns 0 on success or <0 on failure | |
1327 | * | |
1328 | * gelic_net_setup_netdev initializes the net_device structure | |
1329 | **/ | |
59e97327 | 1330 | static int gelic_net_setup_netdev(struct gelic_card *card) |
02c18891 MM |
1331 | { |
1332 | struct net_device *netdev = card->netdev; | |
1333 | struct sockaddr addr; | |
1334 | unsigned int i; | |
1335 | int status; | |
1336 | u64 v1, v2; | |
0795af57 | 1337 | DECLARE_MAC_BUF(mac); |
02c18891 | 1338 | |
02c18891 MM |
1339 | SET_NETDEV_DEV(netdev, &card->dev->core); |
1340 | spin_lock_init(&card->tx_dma_lock); | |
1341 | ||
1342 | card->rx_csum = GELIC_NET_RX_CSUM_DEFAULT; | |
1343 | ||
59e97327 | 1344 | gelic_ether_setup_netdev_ops(netdev); |
02c18891 | 1345 | |
bea3348e SH |
1346 | netif_napi_add(netdev, &card->napi, |
1347 | gelic_net_poll, GELIC_NET_NAPI_WEIGHT); | |
1348 | ||
02c18891 MM |
1349 | netdev->features = NETIF_F_IP_CSUM; |
1350 | ||
1351 | status = lv1_net_control(bus_id(card), dev_id(card), | |
59e97327 | 1352 | GELIC_LV1_GET_MAC_ADDRESS, |
02c18891 MM |
1353 | 0, 0, 0, &v1, &v2); |
1354 | if (status || !is_valid_ether_addr((u8 *)&v1)) { | |
1355 | dev_info(ctodev(card), | |
1356 | "%s:lv1_net_control GET_MAC_ADDR failed %d\n", | |
1357 | __func__, status); | |
1358 | return -EINVAL; | |
1359 | } | |
1360 | v1 <<= 16; | |
1361 | memcpy(addr.sa_data, &v1, ETH_ALEN); | |
1362 | memcpy(netdev->dev_addr, addr.sa_data, ETH_ALEN); | |
0795af57 JP |
1363 | dev_info(ctodev(card), "MAC addr %s\n", |
1364 | print_mac(mac, netdev->dev_addr)); | |
02c18891 MM |
1365 | |
1366 | card->vlan_index = -1; /* no vlan */ | |
1367 | for (i = 0; i < GELIC_NET_VLAN_MAX; i++) { | |
1368 | status = lv1_net_control(bus_id(card), dev_id(card), | |
59e97327 | 1369 | GELIC_LV1_GET_VLAN_ID, |
02c18891 MM |
1370 | i + 1, /* index; one based */ |
1371 | 0, 0, &v1, &v2); | |
59e97327 | 1372 | if (status == LV1_NO_ENTRY) { |
02c18891 MM |
1373 | dev_dbg(ctodev(card), |
1374 | "GELIC_VLAN_ID no entry:%d, VLAN disabled\n", | |
1375 | status); | |
1376 | card->vlan_id[i] = 0; | |
1377 | } else if (status) { | |
1378 | dev_dbg(ctodev(card), | |
59e97327 | 1379 | "%s:get vlan id faild, status=%d\n", |
02c18891 MM |
1380 | __func__, status); |
1381 | card->vlan_id[i] = 0; | |
1382 | } else { | |
1383 | card->vlan_id[i] = (u32)v1; | |
1384 | dev_dbg(ctodev(card), "vlan_id:%d, %lx\n", i, v1); | |
1385 | } | |
1386 | } | |
173261ed | 1387 | |
59e97327 MM |
1388 | if (card->vlan_id[GELIC_LV1_VLAN_TX_ETHERNET - 1]) { |
1389 | card->vlan_index = GELIC_LV1_VLAN_TX_ETHERNET - 1; | |
173261ed MM |
1390 | netdev->hard_header_len += VLAN_HLEN; |
1391 | } | |
02c18891 MM |
1392 | |
1393 | status = register_netdev(netdev); | |
1394 | if (status) { | |
1395 | dev_err(ctodev(card), "%s:Couldn't register net_device: %d\n", | |
1396 | __func__, status); | |
1397 | return status; | |
1398 | } | |
1399 | ||
1400 | return 0; | |
1401 | } | |
1402 | ||
1403 | /** | |
59e97327 | 1404 | * gelic_alloc_card_net - allocates net_device and card structure |
02c18891 MM |
1405 | * |
1406 | * returns the card structure or NULL in case of errors | |
1407 | * | |
1408 | * the card and net_device structures are linked to each other | |
1409 | */ | |
59e97327 | 1410 | static struct gelic_card *gelic_alloc_card_net(void) |
02c18891 MM |
1411 | { |
1412 | struct net_device *netdev; | |
59e97327 | 1413 | struct gelic_card *card; |
02c18891 MM |
1414 | size_t alloc_size; |
1415 | ||
59e97327 MM |
1416 | alloc_size = sizeof(*card) + |
1417 | sizeof(struct gelic_descr) * GELIC_NET_RX_DESCRIPTORS + | |
1418 | sizeof(struct gelic_descr) * GELIC_NET_TX_DESCRIPTORS; | |
02c18891 MM |
1419 | /* |
1420 | * we assume private data is allocated 32 bytes (or more) aligned | |
59e97327 | 1421 | * so that gelic_descr should be 32 bytes aligned. |
02c18891 MM |
1422 | * Current alloc_etherdev() does do it because NETDEV_ALIGN |
1423 | * is 32. | |
1424 | * check this assumption here. | |
1425 | */ | |
1426 | BUILD_BUG_ON(NETDEV_ALIGN < 32); | |
59e97327 MM |
1427 | BUILD_BUG_ON(offsetof(struct gelic_card, irq_status) % 8); |
1428 | BUILD_BUG_ON(offsetof(struct gelic_card, descr) % 32); | |
02c18891 MM |
1429 | |
1430 | netdev = alloc_etherdev(alloc_size); | |
1431 | if (!netdev) | |
1432 | return NULL; | |
1433 | ||
1434 | card = netdev_priv(netdev); | |
1435 | card->netdev = netdev; | |
1436 | INIT_WORK(&card->tx_timeout_task, gelic_net_tx_timeout_task); | |
1437 | init_waitqueue_head(&card->waitq); | |
1438 | atomic_set(&card->tx_timeout_task_counter, 0); | |
1439 | ||
1440 | return card; | |
1441 | } | |
1442 | ||
1443 | /** | |
1444 | * ps3_gelic_driver_probe - add a device to the control of this driver | |
1445 | */ | |
59e97327 | 1446 | static int ps3_gelic_driver_probe(struct ps3_system_bus_device *dev) |
02c18891 | 1447 | { |
59e97327 | 1448 | struct gelic_card *card = gelic_alloc_card_net(); |
02c18891 MM |
1449 | int result; |
1450 | ||
1451 | if (!card) { | |
1452 | dev_info(&dev->core, "gelic_net_alloc_card failed\n"); | |
1453 | result = -ENOMEM; | |
1454 | goto fail_alloc_card; | |
1455 | } | |
1456 | ||
1457 | ps3_system_bus_set_driver_data(dev, card); | |
1458 | card->dev = dev; | |
1459 | ||
1460 | result = ps3_open_hv_device(dev); | |
1461 | ||
1462 | if (result) { | |
1463 | dev_dbg(&dev->core, "ps3_open_hv_device failed\n"); | |
1464 | goto fail_open; | |
1465 | } | |
1466 | ||
1467 | result = ps3_dma_region_create(dev->d_region); | |
1468 | ||
1469 | if (result) { | |
1470 | dev_dbg(&dev->core, "ps3_dma_region_create failed(%d)\n", | |
1471 | result); | |
1472 | BUG_ON("check region type"); | |
1473 | goto fail_dma_region; | |
1474 | } | |
1475 | ||
1476 | result = lv1_net_set_interrupt_status_indicator(bus_id(card), | |
1477 | dev_id(card), | |
1478 | ps3_mm_phys_to_lpar(__pa(&card->irq_status)), | |
1479 | 0); | |
1480 | ||
1481 | if (result) { | |
1482 | dev_dbg(&dev->core, | |
1483 | "lv1_net_set_interrupt_status_indicator failed: %s\n", | |
1484 | ps3_result(result)); | |
1485 | result = -EIO; | |
1486 | goto fail_status_indicator; | |
1487 | } | |
1488 | ||
1489 | result = gelic_net_setup_netdev(card); | |
1490 | ||
1491 | if (result) { | |
1492 | dev_dbg(&dev->core, "%s:%d: ps3_dma_region_create failed: " | |
1493 | "(%d)\n", __func__, __LINE__, result); | |
1494 | goto fail_setup_netdev; | |
1495 | } | |
1496 | ||
1497 | return 0; | |
1498 | ||
1499 | fail_setup_netdev: | |
1500 | lv1_net_set_interrupt_status_indicator(bus_id(card), | |
b94e1d47 | 1501 | dev_id(card), |
02c18891 MM |
1502 | 0 , 0); |
1503 | fail_status_indicator: | |
1504 | ps3_dma_region_free(dev->d_region); | |
1505 | fail_dma_region: | |
1506 | ps3_close_hv_device(dev); | |
1507 | fail_open: | |
1508 | ps3_system_bus_set_driver_data(dev, NULL); | |
1509 | free_netdev(card->netdev); | |
1510 | fail_alloc_card: | |
1511 | return result; | |
1512 | } | |
1513 | ||
1514 | /** | |
1515 | * ps3_gelic_driver_remove - remove a device from the control of this driver | |
1516 | */ | |
1517 | ||
59e97327 | 1518 | static int ps3_gelic_driver_remove(struct ps3_system_bus_device *dev) |
02c18891 | 1519 | { |
59e97327 | 1520 | struct gelic_card *card = ps3_system_bus_get_driver_data(dev); |
02c18891 MM |
1521 | |
1522 | wait_event(card->waitq, | |
1523 | atomic_read(&card->tx_timeout_task_counter) == 0); | |
1524 | ||
1525 | lv1_net_set_interrupt_status_indicator(bus_id(card), dev_id(card), | |
1526 | 0 , 0); | |
1527 | ||
1528 | unregister_netdev(card->netdev); | |
1529 | free_netdev(card->netdev); | |
1530 | ||
1531 | ps3_system_bus_set_driver_data(dev, NULL); | |
1532 | ||
1533 | ps3_dma_region_free(dev->d_region); | |
1534 | ||
1535 | ps3_close_hv_device(dev); | |
1536 | ||
1537 | return 0; | |
1538 | } | |
1539 | ||
1540 | static struct ps3_system_bus_driver ps3_gelic_driver = { | |
1541 | .match_id = PS3_MATCH_ID_GELIC, | |
1542 | .probe = ps3_gelic_driver_probe, | |
1543 | .remove = ps3_gelic_driver_remove, | |
1544 | .shutdown = ps3_gelic_driver_remove, | |
1545 | .core.name = "ps3_gelic_driver", | |
1546 | .core.owner = THIS_MODULE, | |
1547 | }; | |
1548 | ||
1549 | static int __init ps3_gelic_driver_init (void) | |
1550 | { | |
1551 | return firmware_has_feature(FW_FEATURE_PS3_LV1) | |
1552 | ? ps3_system_bus_driver_register(&ps3_gelic_driver) | |
1553 | : -ENODEV; | |
1554 | } | |
1555 | ||
1556 | static void __exit ps3_gelic_driver_exit (void) | |
1557 | { | |
1558 | ps3_system_bus_driver_unregister(&ps3_gelic_driver); | |
1559 | } | |
1560 | ||
59e97327 MM |
1561 | module_init(ps3_gelic_driver_init); |
1562 | module_exit(ps3_gelic_driver_exit); | |
02c18891 MM |
1563 | |
1564 | MODULE_ALIAS(PS3_MODULE_ALIAS_GELIC); | |
1565 |