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1da177e4 LT |
1 | /**************************************************************************/ |
2 | /* */ | |
3 | /* IBM eServer i/pSeries Virtual Ethernet Device Driver */ | |
4 | /* Copyright (C) 2003 IBM Corp. */ | |
5 | /* Originally written by Dave Larson (larson1@us.ibm.com) */ | |
6 | /* Maintained by Santiago Leon (santil@us.ibm.com) */ | |
7 | /* */ | |
8 | /* This program is free software; you can redistribute it and/or modify */ | |
9 | /* it under the terms of the GNU General Public License as published by */ | |
10 | /* the Free Software Foundation; either version 2 of the License, or */ | |
11 | /* (at your option) any later version. */ | |
12 | /* */ | |
13 | /* This program is distributed in the hope that it will be useful, */ | |
14 | /* but WITHOUT ANY WARRANTY; without even the implied warranty of */ | |
15 | /* MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the */ | |
16 | /* GNU General Public License for more details. */ | |
17 | /* */ | |
18 | /* You should have received a copy of the GNU General Public License */ | |
19 | /* along with this program; if not, write to the Free Software */ | |
20 | /* Foundation, Inc., 59 Temple Place, Suite 330, Boston, MA 02111-1307 */ | |
21 | /* USA */ | |
22 | /* */ | |
23 | /* This module contains the implementation of a virtual ethernet device */ | |
24 | /* for use with IBM i/pSeries LPAR Linux. It utilizes the logical LAN */ | |
25 | /* option of the RS/6000 Platform Architechture to interface with virtual */ | |
26 | /* ethernet NICs that are presented to the partition by the hypervisor. */ | |
d7fbeba6 | 27 | /* */ |
1da177e4 LT |
28 | /**************************************************************************/ |
29 | /* | |
30 | TODO: | |
31 | - remove frag processing code - no longer needed | |
32 | - add support for sysfs | |
33 | - possibly remove procfs support | |
34 | */ | |
35 | ||
1da177e4 | 36 | #include <linux/module.h> |
1da177e4 LT |
37 | #include <linux/types.h> |
38 | #include <linux/errno.h> | |
39 | #include <linux/ioport.h> | |
40 | #include <linux/dma-mapping.h> | |
41 | #include <linux/kernel.h> | |
42 | #include <linux/netdevice.h> | |
43 | #include <linux/etherdevice.h> | |
44 | #include <linux/skbuff.h> | |
45 | #include <linux/init.h> | |
46 | #include <linux/delay.h> | |
47 | #include <linux/mm.h> | |
48 | #include <linux/ethtool.h> | |
49 | #include <linux/proc_fs.h> | |
f4ff2872 BK |
50 | #include <linux/in.h> |
51 | #include <linux/ip.h> | |
457c4cbc | 52 | #include <net/net_namespace.h> |
1da177e4 LT |
53 | #include <asm/semaphore.h> |
54 | #include <asm/hvcall.h> | |
55 | #include <asm/atomic.h> | |
1da177e4 LT |
56 | #include <asm/vio.h> |
57 | #include <asm/uaccess.h> | |
58 | #include <linux/seq_file.h> | |
59 | ||
60 | #include "ibmveth.h" | |
61 | ||
6af37fa9 | 62 | #undef DEBUG |
1da177e4 LT |
63 | |
64 | #define ibmveth_printk(fmt, args...) \ | |
f98baffb | 65 | printk(KERN_DEBUG "%s: " fmt, __FILE__, ## args) |
1da177e4 LT |
66 | |
67 | #define ibmveth_error_printk(fmt, args...) \ | |
68 | printk(KERN_ERR "(%s:%3.3d ua:%x) ERROR: " fmt, __FILE__, __LINE__ , adapter->vdev->unit_address, ## args) | |
69 | ||
70 | #ifdef DEBUG | |
71 | #define ibmveth_debug_printk_no_adapter(fmt, args...) \ | |
72 | printk(KERN_DEBUG "(%s:%3.3d): " fmt, __FILE__, __LINE__ , ## args) | |
73 | #define ibmveth_debug_printk(fmt, args...) \ | |
74 | printk(KERN_DEBUG "(%s:%3.3d ua:%x): " fmt, __FILE__, __LINE__ , adapter->vdev->unit_address, ## args) | |
75 | #define ibmveth_assert(expr) \ | |
76 | if(!(expr)) { \ | |
77 | printk(KERN_DEBUG "assertion failed (%s:%3.3d ua:%x): %s\n", __FILE__, __LINE__, adapter->vdev->unit_address, #expr); \ | |
78 | BUG(); \ | |
79 | } | |
80 | #else | |
81 | #define ibmveth_debug_printk_no_adapter(fmt, args...) | |
82 | #define ibmveth_debug_printk(fmt, args...) | |
d7fbeba6 | 83 | #define ibmveth_assert(expr) |
1da177e4 LT |
84 | #endif |
85 | ||
86 | static int ibmveth_open(struct net_device *dev); | |
87 | static int ibmveth_close(struct net_device *dev); | |
88 | static int ibmveth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd); | |
bea3348e | 89 | static int ibmveth_poll(struct napi_struct *napi, int budget); |
1da177e4 LT |
90 | static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *dev); |
91 | static struct net_device_stats *ibmveth_get_stats(struct net_device *dev); | |
92 | static void ibmveth_set_multicast_list(struct net_device *dev); | |
93 | static int ibmveth_change_mtu(struct net_device *dev, int new_mtu); | |
94 | static void ibmveth_proc_register_driver(void); | |
95 | static void ibmveth_proc_unregister_driver(void); | |
96 | static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter); | |
97 | static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter); | |
7d12e780 | 98 | static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance); |
493a684a | 99 | static void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter); |
860f242e | 100 | static struct kobj_type ktype_veth_pool; |
1da177e4 LT |
101 | |
102 | #ifdef CONFIG_PROC_FS | |
457c4cbc | 103 | #define IBMVETH_PROC_DIR "ibmveth" |
1da177e4 LT |
104 | static struct proc_dir_entry *ibmveth_proc_dir; |
105 | #endif | |
106 | ||
107 | static const char ibmveth_driver_name[] = "ibmveth"; | |
108 | static const char ibmveth_driver_string[] = "IBM i/pSeries Virtual Ethernet Driver"; | |
109 | #define ibmveth_driver_version "1.03" | |
110 | ||
111 | MODULE_AUTHOR("Santiago Leon <santil@us.ibm.com>"); | |
112 | MODULE_DESCRIPTION("IBM i/pSeries Virtual Ethernet Driver"); | |
113 | MODULE_LICENSE("GPL"); | |
114 | MODULE_VERSION(ibmveth_driver_version); | |
115 | ||
116 | /* simple methods of getting data from the current rxq entry */ | |
117 | static inline int ibmveth_rxq_pending_buffer(struct ibmveth_adapter *adapter) | |
118 | { | |
119 | return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].toggle == adapter->rx_queue.toggle); | |
120 | } | |
121 | ||
122 | static inline int ibmveth_rxq_buffer_valid(struct ibmveth_adapter *adapter) | |
123 | { | |
124 | return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].valid); | |
125 | } | |
126 | ||
127 | static inline int ibmveth_rxq_frame_offset(struct ibmveth_adapter *adapter) | |
128 | { | |
129 | return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].offset); | |
130 | } | |
131 | ||
132 | static inline int ibmveth_rxq_frame_length(struct ibmveth_adapter *adapter) | |
133 | { | |
134 | return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].length); | |
135 | } | |
136 | ||
f4ff2872 BK |
137 | static inline int ibmveth_rxq_csum_good(struct ibmveth_adapter *adapter) |
138 | { | |
139 | return (adapter->rx_queue.queue_addr[adapter->rx_queue.index].csum_good); | |
140 | } | |
141 | ||
1da177e4 | 142 | /* setup the initial settings for a buffer pool */ |
860f242e | 143 | static void ibmveth_init_buffer_pool(struct ibmveth_buff_pool *pool, u32 pool_index, u32 pool_size, u32 buff_size, u32 pool_active) |
1da177e4 LT |
144 | { |
145 | pool->size = pool_size; | |
146 | pool->index = pool_index; | |
147 | pool->buff_size = buff_size; | |
148 | pool->threshold = pool_size / 2; | |
860f242e | 149 | pool->active = pool_active; |
1da177e4 LT |
150 | } |
151 | ||
152 | /* allocate and setup an buffer pool - called during open */ | |
153 | static int ibmveth_alloc_buffer_pool(struct ibmveth_buff_pool *pool) | |
154 | { | |
155 | int i; | |
156 | ||
d7fbeba6 | 157 | pool->free_map = kmalloc(sizeof(u16) * pool->size, GFP_KERNEL); |
1da177e4 LT |
158 | |
159 | if(!pool->free_map) { | |
160 | return -1; | |
161 | } | |
162 | ||
d7fbeba6 | 163 | pool->dma_addr = kmalloc(sizeof(dma_addr_t) * pool->size, GFP_KERNEL); |
1da177e4 LT |
164 | if(!pool->dma_addr) { |
165 | kfree(pool->free_map); | |
166 | pool->free_map = NULL; | |
167 | return -1; | |
168 | } | |
169 | ||
170 | pool->skbuff = kmalloc(sizeof(void*) * pool->size, GFP_KERNEL); | |
171 | ||
172 | if(!pool->skbuff) { | |
173 | kfree(pool->dma_addr); | |
174 | pool->dma_addr = NULL; | |
175 | ||
176 | kfree(pool->free_map); | |
177 | pool->free_map = NULL; | |
178 | return -1; | |
179 | } | |
180 | ||
181 | memset(pool->skbuff, 0, sizeof(void*) * pool->size); | |
182 | memset(pool->dma_addr, 0, sizeof(dma_addr_t) * pool->size); | |
183 | ||
184 | for(i = 0; i < pool->size; ++i) { | |
185 | pool->free_map[i] = i; | |
186 | } | |
187 | ||
188 | atomic_set(&pool->available, 0); | |
189 | pool->producer_index = 0; | |
190 | pool->consumer_index = 0; | |
191 | ||
192 | return 0; | |
193 | } | |
194 | ||
195 | /* replenish the buffers for a pool. note that we don't need to | |
196 | * skb_reserve these since they are used for incoming... | |
197 | */ | |
198 | static void ibmveth_replenish_buffer_pool(struct ibmveth_adapter *adapter, struct ibmveth_buff_pool *pool) | |
199 | { | |
200 | u32 i; | |
201 | u32 count = pool->size - atomic_read(&pool->available); | |
202 | u32 buffers_added = 0; | |
203 | ||
204 | mb(); | |
205 | ||
206 | for(i = 0; i < count; ++i) { | |
207 | struct sk_buff *skb; | |
208 | unsigned int free_index, index; | |
209 | u64 correlator; | |
210 | union ibmveth_buf_desc desc; | |
211 | unsigned long lpar_rc; | |
212 | dma_addr_t dma_addr; | |
213 | ||
214 | skb = alloc_skb(pool->buff_size, GFP_ATOMIC); | |
215 | ||
216 | if(!skb) { | |
217 | ibmveth_debug_printk("replenish: unable to allocate skb\n"); | |
218 | adapter->replenish_no_mem++; | |
219 | break; | |
220 | } | |
221 | ||
047a66d4 DG |
222 | free_index = pool->consumer_index; |
223 | pool->consumer_index = (pool->consumer_index + 1) % pool->size; | |
1da177e4 | 224 | index = pool->free_map[free_index]; |
d7fbeba6 | 225 | |
1da177e4 LT |
226 | ibmveth_assert(index != IBM_VETH_INVALID_MAP); |
227 | ibmveth_assert(pool->skbuff[index] == NULL); | |
228 | ||
229 | dma_addr = dma_map_single(&adapter->vdev->dev, skb->data, | |
230 | pool->buff_size, DMA_FROM_DEVICE); | |
231 | ||
232 | pool->free_map[free_index] = IBM_VETH_INVALID_MAP; | |
233 | pool->dma_addr[index] = dma_addr; | |
234 | pool->skbuff[index] = skb; | |
235 | ||
236 | correlator = ((u64)pool->index << 32) | index; | |
237 | *(u64*)skb->data = correlator; | |
238 | ||
239 | desc.desc = 0; | |
240 | desc.fields.valid = 1; | |
241 | desc.fields.length = pool->buff_size; | |
d7fbeba6 | 242 | desc.fields.address = dma_addr; |
1da177e4 LT |
243 | |
244 | lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc); | |
d7fbeba6 | 245 | |
706c8c93 | 246 | if(lpar_rc != H_SUCCESS) { |
82702d37 | 247 | pool->free_map[free_index] = index; |
1da177e4 | 248 | pool->skbuff[index] = NULL; |
751ae21c SL |
249 | if (pool->consumer_index == 0) |
250 | pool->consumer_index = pool->size - 1; | |
251 | else | |
252 | pool->consumer_index--; | |
1da177e4 LT |
253 | dma_unmap_single(&adapter->vdev->dev, |
254 | pool->dma_addr[index], pool->buff_size, | |
255 | DMA_FROM_DEVICE); | |
256 | dev_kfree_skb_any(skb); | |
257 | adapter->replenish_add_buff_failure++; | |
258 | break; | |
259 | } else { | |
260 | buffers_added++; | |
261 | adapter->replenish_add_buff_success++; | |
262 | } | |
263 | } | |
d7fbeba6 | 264 | |
1da177e4 LT |
265 | mb(); |
266 | atomic_add(buffers_added, &(pool->available)); | |
267 | } | |
268 | ||
e2adbcb4 | 269 | /* replenish routine */ |
d7fbeba6 | 270 | static void ibmveth_replenish_task(struct ibmveth_adapter *adapter) |
1da177e4 | 271 | { |
b6d35182 SL |
272 | int i; |
273 | ||
1da177e4 LT |
274 | adapter->replenish_task_cycles++; |
275 | ||
b6d35182 SL |
276 | for(i = 0; i < IbmVethNumBufferPools; i++) |
277 | if(adapter->rx_buff_pool[i].active) | |
d7fbeba6 | 278 | ibmveth_replenish_buffer_pool(adapter, |
b6d35182 | 279 | &adapter->rx_buff_pool[i]); |
1da177e4 LT |
280 | |
281 | adapter->rx_no_buffer = *(u64*)(((char*)adapter->buffer_list_addr) + 4096 - 8); | |
1da177e4 LT |
282 | } |
283 | ||
284 | /* empty and free ana buffer pool - also used to do cleanup in error paths */ | |
285 | static void ibmveth_free_buffer_pool(struct ibmveth_adapter *adapter, struct ibmveth_buff_pool *pool) | |
286 | { | |
287 | int i; | |
288 | ||
b4558ea9 JJ |
289 | kfree(pool->free_map); |
290 | pool->free_map = NULL; | |
1da177e4 LT |
291 | |
292 | if(pool->skbuff && pool->dma_addr) { | |
293 | for(i = 0; i < pool->size; ++i) { | |
294 | struct sk_buff *skb = pool->skbuff[i]; | |
295 | if(skb) { | |
296 | dma_unmap_single(&adapter->vdev->dev, | |
297 | pool->dma_addr[i], | |
298 | pool->buff_size, | |
299 | DMA_FROM_DEVICE); | |
300 | dev_kfree_skb_any(skb); | |
301 | pool->skbuff[i] = NULL; | |
302 | } | |
303 | } | |
304 | } | |
305 | ||
306 | if(pool->dma_addr) { | |
307 | kfree(pool->dma_addr); | |
308 | pool->dma_addr = NULL; | |
309 | } | |
310 | ||
311 | if(pool->skbuff) { | |
312 | kfree(pool->skbuff); | |
313 | pool->skbuff = NULL; | |
314 | } | |
315 | } | |
316 | ||
317 | /* remove a buffer from a pool */ | |
318 | static void ibmveth_remove_buffer_from_pool(struct ibmveth_adapter *adapter, u64 correlator) | |
319 | { | |
320 | unsigned int pool = correlator >> 32; | |
321 | unsigned int index = correlator & 0xffffffffUL; | |
322 | unsigned int free_index; | |
323 | struct sk_buff *skb; | |
324 | ||
325 | ibmveth_assert(pool < IbmVethNumBufferPools); | |
326 | ibmveth_assert(index < adapter->rx_buff_pool[pool].size); | |
327 | ||
328 | skb = adapter->rx_buff_pool[pool].skbuff[index]; | |
329 | ||
330 | ibmveth_assert(skb != NULL); | |
331 | ||
332 | adapter->rx_buff_pool[pool].skbuff[index] = NULL; | |
333 | ||
334 | dma_unmap_single(&adapter->vdev->dev, | |
335 | adapter->rx_buff_pool[pool].dma_addr[index], | |
336 | adapter->rx_buff_pool[pool].buff_size, | |
337 | DMA_FROM_DEVICE); | |
338 | ||
047a66d4 DG |
339 | free_index = adapter->rx_buff_pool[pool].producer_index; |
340 | adapter->rx_buff_pool[pool].producer_index | |
341 | = (adapter->rx_buff_pool[pool].producer_index + 1) | |
342 | % adapter->rx_buff_pool[pool].size; | |
1da177e4 LT |
343 | adapter->rx_buff_pool[pool].free_map[free_index] = index; |
344 | ||
345 | mb(); | |
346 | ||
347 | atomic_dec(&(adapter->rx_buff_pool[pool].available)); | |
348 | } | |
349 | ||
350 | /* get the current buffer on the rx queue */ | |
351 | static inline struct sk_buff *ibmveth_rxq_get_buffer(struct ibmveth_adapter *adapter) | |
352 | { | |
353 | u64 correlator = adapter->rx_queue.queue_addr[adapter->rx_queue.index].correlator; | |
354 | unsigned int pool = correlator >> 32; | |
355 | unsigned int index = correlator & 0xffffffffUL; | |
356 | ||
357 | ibmveth_assert(pool < IbmVethNumBufferPools); | |
358 | ibmveth_assert(index < adapter->rx_buff_pool[pool].size); | |
359 | ||
360 | return adapter->rx_buff_pool[pool].skbuff[index]; | |
361 | } | |
362 | ||
363 | /* recycle the current buffer on the rx queue */ | |
364 | static void ibmveth_rxq_recycle_buffer(struct ibmveth_adapter *adapter) | |
365 | { | |
366 | u32 q_index = adapter->rx_queue.index; | |
367 | u64 correlator = adapter->rx_queue.queue_addr[q_index].correlator; | |
368 | unsigned int pool = correlator >> 32; | |
369 | unsigned int index = correlator & 0xffffffffUL; | |
370 | union ibmveth_buf_desc desc; | |
371 | unsigned long lpar_rc; | |
372 | ||
373 | ibmveth_assert(pool < IbmVethNumBufferPools); | |
374 | ibmveth_assert(index < adapter->rx_buff_pool[pool].size); | |
375 | ||
b6d35182 SL |
376 | if(!adapter->rx_buff_pool[pool].active) { |
377 | ibmveth_rxq_harvest_buffer(adapter); | |
378 | ibmveth_free_buffer_pool(adapter, &adapter->rx_buff_pool[pool]); | |
379 | return; | |
380 | } | |
381 | ||
1da177e4 LT |
382 | desc.desc = 0; |
383 | desc.fields.valid = 1; | |
384 | desc.fields.length = adapter->rx_buff_pool[pool].buff_size; | |
385 | desc.fields.address = adapter->rx_buff_pool[pool].dma_addr[index]; | |
386 | ||
387 | lpar_rc = h_add_logical_lan_buffer(adapter->vdev->unit_address, desc.desc); | |
d7fbeba6 | 388 | |
706c8c93 | 389 | if(lpar_rc != H_SUCCESS) { |
1da177e4 LT |
390 | ibmveth_debug_printk("h_add_logical_lan_buffer failed during recycle rc=%ld", lpar_rc); |
391 | ibmveth_remove_buffer_from_pool(adapter, adapter->rx_queue.queue_addr[adapter->rx_queue.index].correlator); | |
392 | } | |
393 | ||
394 | if(++adapter->rx_queue.index == adapter->rx_queue.num_slots) { | |
395 | adapter->rx_queue.index = 0; | |
396 | adapter->rx_queue.toggle = !adapter->rx_queue.toggle; | |
397 | } | |
398 | } | |
399 | ||
493a684a | 400 | static void ibmveth_rxq_harvest_buffer(struct ibmveth_adapter *adapter) |
1da177e4 LT |
401 | { |
402 | ibmveth_remove_buffer_from_pool(adapter, adapter->rx_queue.queue_addr[adapter->rx_queue.index].correlator); | |
403 | ||
404 | if(++adapter->rx_queue.index == adapter->rx_queue.num_slots) { | |
405 | adapter->rx_queue.index = 0; | |
406 | adapter->rx_queue.toggle = !adapter->rx_queue.toggle; | |
407 | } | |
408 | } | |
409 | ||
410 | static void ibmveth_cleanup(struct ibmveth_adapter *adapter) | |
411 | { | |
b6d35182 SL |
412 | int i; |
413 | ||
1da177e4 LT |
414 | if(adapter->buffer_list_addr != NULL) { |
415 | if(!dma_mapping_error(adapter->buffer_list_dma)) { | |
416 | dma_unmap_single(&adapter->vdev->dev, | |
417 | adapter->buffer_list_dma, 4096, | |
418 | DMA_BIDIRECTIONAL); | |
419 | adapter->buffer_list_dma = DMA_ERROR_CODE; | |
420 | } | |
421 | free_page((unsigned long)adapter->buffer_list_addr); | |
422 | adapter->buffer_list_addr = NULL; | |
d7fbeba6 | 423 | } |
1da177e4 LT |
424 | |
425 | if(adapter->filter_list_addr != NULL) { | |
426 | if(!dma_mapping_error(adapter->filter_list_dma)) { | |
427 | dma_unmap_single(&adapter->vdev->dev, | |
428 | adapter->filter_list_dma, 4096, | |
429 | DMA_BIDIRECTIONAL); | |
430 | adapter->filter_list_dma = DMA_ERROR_CODE; | |
431 | } | |
432 | free_page((unsigned long)adapter->filter_list_addr); | |
433 | adapter->filter_list_addr = NULL; | |
434 | } | |
435 | ||
436 | if(adapter->rx_queue.queue_addr != NULL) { | |
437 | if(!dma_mapping_error(adapter->rx_queue.queue_dma)) { | |
438 | dma_unmap_single(&adapter->vdev->dev, | |
439 | adapter->rx_queue.queue_dma, | |
440 | adapter->rx_queue.queue_len, | |
441 | DMA_BIDIRECTIONAL); | |
442 | adapter->rx_queue.queue_dma = DMA_ERROR_CODE; | |
443 | } | |
444 | kfree(adapter->rx_queue.queue_addr); | |
445 | adapter->rx_queue.queue_addr = NULL; | |
446 | } | |
447 | ||
b6d35182 | 448 | for(i = 0; i<IbmVethNumBufferPools; i++) |
860f242e | 449 | if (adapter->rx_buff_pool[i].active) |
d7fbeba6 | 450 | ibmveth_free_buffer_pool(adapter, |
860f242e | 451 | &adapter->rx_buff_pool[i]); |
1da177e4 LT |
452 | } |
453 | ||
bbedefcc ME |
454 | static int ibmveth_register_logical_lan(struct ibmveth_adapter *adapter, |
455 | union ibmveth_buf_desc rxq_desc, u64 mac_address) | |
456 | { | |
457 | int rc, try_again = 1; | |
458 | ||
459 | /* After a kexec the adapter will still be open, so our attempt to | |
460 | * open it will fail. So if we get a failure we free the adapter and | |
461 | * try again, but only once. */ | |
462 | retry: | |
463 | rc = h_register_logical_lan(adapter->vdev->unit_address, | |
464 | adapter->buffer_list_dma, rxq_desc.desc, | |
465 | adapter->filter_list_dma, mac_address); | |
466 | ||
467 | if (rc != H_SUCCESS && try_again) { | |
468 | do { | |
469 | rc = h_free_logical_lan(adapter->vdev->unit_address); | |
470 | } while (H_IS_LONG_BUSY(rc) || (rc == H_BUSY)); | |
471 | ||
472 | try_again = 0; | |
473 | goto retry; | |
474 | } | |
475 | ||
476 | return rc; | |
477 | } | |
478 | ||
1da177e4 LT |
479 | static int ibmveth_open(struct net_device *netdev) |
480 | { | |
481 | struct ibmveth_adapter *adapter = netdev->priv; | |
482 | u64 mac_address = 0; | |
b6d35182 | 483 | int rxq_entries = 1; |
1da177e4 LT |
484 | unsigned long lpar_rc; |
485 | int rc; | |
486 | union ibmveth_buf_desc rxq_desc; | |
b6d35182 | 487 | int i; |
1da177e4 LT |
488 | |
489 | ibmveth_debug_printk("open starting\n"); | |
490 | ||
bea3348e SH |
491 | napi_enable(&adapter->napi); |
492 | ||
b6d35182 SL |
493 | for(i = 0; i<IbmVethNumBufferPools; i++) |
494 | rxq_entries += adapter->rx_buff_pool[i].size; | |
d7fbeba6 | 495 | |
1da177e4 LT |
496 | adapter->buffer_list_addr = (void*) get_zeroed_page(GFP_KERNEL); |
497 | adapter->filter_list_addr = (void*) get_zeroed_page(GFP_KERNEL); | |
d7fbeba6 | 498 | |
1da177e4 LT |
499 | if(!adapter->buffer_list_addr || !adapter->filter_list_addr) { |
500 | ibmveth_error_printk("unable to allocate filter or buffer list pages\n"); | |
501 | ibmveth_cleanup(adapter); | |
bea3348e | 502 | napi_disable(&adapter->napi); |
1da177e4 LT |
503 | return -ENOMEM; |
504 | } | |
505 | ||
506 | adapter->rx_queue.queue_len = sizeof(struct ibmveth_rx_q_entry) * rxq_entries; | |
507 | adapter->rx_queue.queue_addr = kmalloc(adapter->rx_queue.queue_len, GFP_KERNEL); | |
508 | ||
509 | if(!adapter->rx_queue.queue_addr) { | |
510 | ibmveth_error_printk("unable to allocate rx queue pages\n"); | |
511 | ibmveth_cleanup(adapter); | |
bea3348e | 512 | napi_disable(&adapter->napi); |
1da177e4 LT |
513 | return -ENOMEM; |
514 | } | |
515 | ||
516 | adapter->buffer_list_dma = dma_map_single(&adapter->vdev->dev, | |
517 | adapter->buffer_list_addr, 4096, DMA_BIDIRECTIONAL); | |
518 | adapter->filter_list_dma = dma_map_single(&adapter->vdev->dev, | |
519 | adapter->filter_list_addr, 4096, DMA_BIDIRECTIONAL); | |
520 | adapter->rx_queue.queue_dma = dma_map_single(&adapter->vdev->dev, | |
521 | adapter->rx_queue.queue_addr, | |
522 | adapter->rx_queue.queue_len, DMA_BIDIRECTIONAL); | |
523 | ||
524 | if((dma_mapping_error(adapter->buffer_list_dma) ) || | |
525 | (dma_mapping_error(adapter->filter_list_dma)) || | |
526 | (dma_mapping_error(adapter->rx_queue.queue_dma))) { | |
527 | ibmveth_error_printk("unable to map filter or buffer list pages\n"); | |
528 | ibmveth_cleanup(adapter); | |
bea3348e | 529 | napi_disable(&adapter->napi); |
1da177e4 LT |
530 | return -ENOMEM; |
531 | } | |
532 | ||
533 | adapter->rx_queue.index = 0; | |
534 | adapter->rx_queue.num_slots = rxq_entries; | |
535 | adapter->rx_queue.toggle = 1; | |
536 | ||
1da177e4 LT |
537 | memcpy(&mac_address, netdev->dev_addr, netdev->addr_len); |
538 | mac_address = mac_address >> 16; | |
539 | ||
540 | rxq_desc.desc = 0; | |
541 | rxq_desc.fields.valid = 1; | |
542 | rxq_desc.fields.length = adapter->rx_queue.queue_len; | |
543 | rxq_desc.fields.address = adapter->rx_queue.queue_dma; | |
544 | ||
545 | ibmveth_debug_printk("buffer list @ 0x%p\n", adapter->buffer_list_addr); | |
546 | ibmveth_debug_printk("filter list @ 0x%p\n", adapter->filter_list_addr); | |
547 | ibmveth_debug_printk("receive q @ 0x%p\n", adapter->rx_queue.queue_addr); | |
548 | ||
4347ef15 SL |
549 | h_vio_signal(adapter->vdev->unit_address, VIO_IRQ_DISABLE); |
550 | ||
bbedefcc | 551 | lpar_rc = ibmveth_register_logical_lan(adapter, rxq_desc, mac_address); |
1da177e4 | 552 | |
706c8c93 | 553 | if(lpar_rc != H_SUCCESS) { |
1da177e4 | 554 | ibmveth_error_printk("h_register_logical_lan failed with %ld\n", lpar_rc); |
8168f902 | 555 | ibmveth_error_printk("buffer TCE:0x%lx filter TCE:0x%lx rxq desc:0x%lx MAC:0x%lx\n", |
1da177e4 LT |
556 | adapter->buffer_list_dma, |
557 | adapter->filter_list_dma, | |
558 | rxq_desc.desc, | |
559 | mac_address); | |
560 | ibmveth_cleanup(adapter); | |
bea3348e | 561 | napi_disable(&adapter->napi); |
d7fbeba6 | 562 | return -ENONET; |
1da177e4 LT |
563 | } |
564 | ||
860f242e SL |
565 | for(i = 0; i<IbmVethNumBufferPools; i++) { |
566 | if(!adapter->rx_buff_pool[i].active) | |
567 | continue; | |
568 | if (ibmveth_alloc_buffer_pool(&adapter->rx_buff_pool[i])) { | |
569 | ibmveth_error_printk("unable to alloc pool\n"); | |
570 | adapter->rx_buff_pool[i].active = 0; | |
571 | ibmveth_cleanup(adapter); | |
bea3348e | 572 | napi_disable(&adapter->napi); |
860f242e SL |
573 | return -ENOMEM ; |
574 | } | |
575 | } | |
576 | ||
1da177e4 LT |
577 | ibmveth_debug_printk("registering irq 0x%x\n", netdev->irq); |
578 | if((rc = request_irq(netdev->irq, &ibmveth_interrupt, 0, netdev->name, netdev)) != 0) { | |
579 | ibmveth_error_printk("unable to request irq 0x%x, rc %d\n", netdev->irq, rc); | |
580 | do { | |
581 | rc = h_free_logical_lan(adapter->vdev->unit_address); | |
706c8c93 | 582 | } while (H_IS_LONG_BUSY(rc) || (rc == H_BUSY)); |
1da177e4 LT |
583 | |
584 | ibmveth_cleanup(adapter); | |
bea3348e | 585 | napi_disable(&adapter->napi); |
1da177e4 LT |
586 | return rc; |
587 | } | |
588 | ||
e2adbcb4 | 589 | ibmveth_debug_printk("initial replenish cycle\n"); |
7d12e780 | 590 | ibmveth_interrupt(netdev->irq, netdev); |
1da177e4 | 591 | |
e2adbcb4 | 592 | netif_start_queue(netdev); |
1da177e4 LT |
593 | |
594 | ibmveth_debug_printk("open complete\n"); | |
595 | ||
596 | return 0; | |
597 | } | |
598 | ||
599 | static int ibmveth_close(struct net_device *netdev) | |
600 | { | |
601 | struct ibmveth_adapter *adapter = netdev->priv; | |
602 | long lpar_rc; | |
d7fbeba6 | 603 | |
1da177e4 LT |
604 | ibmveth_debug_printk("close starting\n"); |
605 | ||
bea3348e SH |
606 | napi_disable(&adapter->napi); |
607 | ||
860f242e SL |
608 | if (!adapter->pool_config) |
609 | netif_stop_queue(netdev); | |
1da177e4 LT |
610 | |
611 | free_irq(netdev->irq, netdev); | |
612 | ||
1da177e4 LT |
613 | do { |
614 | lpar_rc = h_free_logical_lan(adapter->vdev->unit_address); | |
706c8c93 | 615 | } while (H_IS_LONG_BUSY(lpar_rc) || (lpar_rc == H_BUSY)); |
1da177e4 | 616 | |
706c8c93 | 617 | if(lpar_rc != H_SUCCESS) |
1da177e4 LT |
618 | { |
619 | ibmveth_error_printk("h_free_logical_lan failed with %lx, continuing with close\n", | |
620 | lpar_rc); | |
621 | } | |
622 | ||
623 | adapter->rx_no_buffer = *(u64*)(((char*)adapter->buffer_list_addr) + 4096 - 8); | |
624 | ||
625 | ibmveth_cleanup(adapter); | |
626 | ||
627 | ibmveth_debug_printk("close complete\n"); | |
628 | ||
629 | return 0; | |
630 | } | |
631 | ||
632 | static int netdev_get_settings(struct net_device *dev, struct ethtool_cmd *cmd) { | |
633 | cmd->supported = (SUPPORTED_1000baseT_Full | SUPPORTED_Autoneg | SUPPORTED_FIBRE); | |
634 | cmd->advertising = (ADVERTISED_1000baseT_Full | ADVERTISED_Autoneg | ADVERTISED_FIBRE); | |
635 | cmd->speed = SPEED_1000; | |
636 | cmd->duplex = DUPLEX_FULL; | |
637 | cmd->port = PORT_FIBRE; | |
638 | cmd->phy_address = 0; | |
639 | cmd->transceiver = XCVR_INTERNAL; | |
640 | cmd->autoneg = AUTONEG_ENABLE; | |
641 | cmd->maxtxpkt = 0; | |
642 | cmd->maxrxpkt = 1; | |
643 | return 0; | |
644 | } | |
645 | ||
646 | static void netdev_get_drvinfo (struct net_device *dev, struct ethtool_drvinfo *info) { | |
647 | strncpy(info->driver, ibmveth_driver_name, sizeof(info->driver) - 1); | |
648 | strncpy(info->version, ibmveth_driver_version, sizeof(info->version) - 1); | |
649 | } | |
650 | ||
651 | static u32 netdev_get_link(struct net_device *dev) { | |
652 | return 1; | |
653 | } | |
654 | ||
7282d491 | 655 | static const struct ethtool_ops netdev_ethtool_ops = { |
1da177e4 LT |
656 | .get_drvinfo = netdev_get_drvinfo, |
657 | .get_settings = netdev_get_settings, | |
658 | .get_link = netdev_get_link, | |
659 | .get_sg = ethtool_op_get_sg, | |
660 | .get_tx_csum = ethtool_op_get_tx_csum, | |
661 | }; | |
662 | ||
663 | static int ibmveth_ioctl(struct net_device *dev, struct ifreq *ifr, int cmd) | |
664 | { | |
665 | return -EOPNOTSUPP; | |
666 | } | |
667 | ||
668 | #define page_offset(v) ((unsigned long)(v) & ((1 << 12) - 1)) | |
669 | ||
670 | static int ibmveth_start_xmit(struct sk_buff *skb, struct net_device *netdev) | |
671 | { | |
672 | struct ibmveth_adapter *adapter = netdev->priv; | |
673 | union ibmveth_buf_desc desc[IbmVethMaxSendFrags]; | |
674 | unsigned long lpar_rc; | |
675 | int nfrags = 0, curfrag; | |
676 | unsigned long correlator; | |
60296d9e | 677 | unsigned long flags; |
1da177e4 | 678 | unsigned int retry_count; |
60296d9e SL |
679 | unsigned int tx_dropped = 0; |
680 | unsigned int tx_bytes = 0; | |
681 | unsigned int tx_packets = 0; | |
682 | unsigned int tx_send_failed = 0; | |
683 | unsigned int tx_map_failed = 0; | |
684 | ||
1da177e4 LT |
685 | |
686 | if ((skb_shinfo(skb)->nr_frags + 1) > IbmVethMaxSendFrags) { | |
60296d9e SL |
687 | tx_dropped++; |
688 | goto out; | |
1da177e4 LT |
689 | } |
690 | ||
691 | memset(&desc, 0, sizeof(desc)); | |
692 | ||
693 | /* nfrags = number of frags after the initial fragment */ | |
694 | nfrags = skb_shinfo(skb)->nr_frags; | |
695 | ||
696 | if(nfrags) | |
697 | adapter->tx_multidesc_send++; | |
698 | ||
699 | /* map the initial fragment */ | |
700 | desc[0].fields.length = nfrags ? skb->len - skb->data_len : skb->len; | |
701 | desc[0].fields.address = dma_map_single(&adapter->vdev->dev, skb->data, | |
702 | desc[0].fields.length, DMA_TO_DEVICE); | |
703 | desc[0].fields.valid = 1; | |
704 | ||
f4ff2872 BK |
705 | if (skb->ip_summed == CHECKSUM_PARTIAL && |
706 | ip_hdr(skb)->protocol != IPPROTO_TCP && skb_checksum_help(skb)) { | |
707 | ibmveth_error_printk("tx: failed to checksum packet\n"); | |
708 | tx_dropped++; | |
709 | goto out; | |
710 | } | |
711 | ||
712 | if (skb->ip_summed == CHECKSUM_PARTIAL) { | |
713 | unsigned char *buf = skb_transport_header(skb) + skb->csum_offset; | |
714 | ||
715 | desc[0].fields.no_csum = 1; | |
716 | desc[0].fields.csum_good = 1; | |
717 | ||
718 | /* Need to zero out the checksum */ | |
719 | buf[0] = 0; | |
720 | buf[1] = 0; | |
721 | } | |
722 | ||
1da177e4 LT |
723 | if(dma_mapping_error(desc[0].fields.address)) { |
724 | ibmveth_error_printk("tx: unable to map initial fragment\n"); | |
60296d9e SL |
725 | tx_map_failed++; |
726 | tx_dropped++; | |
727 | goto out; | |
1da177e4 LT |
728 | } |
729 | ||
730 | curfrag = nfrags; | |
731 | ||
732 | /* map fragments past the initial portion if there are any */ | |
733 | while(curfrag--) { | |
734 | skb_frag_t *frag = &skb_shinfo(skb)->frags[curfrag]; | |
735 | desc[curfrag+1].fields.address | |
736 | = dma_map_single(&adapter->vdev->dev, | |
737 | page_address(frag->page) + frag->page_offset, | |
738 | frag->size, DMA_TO_DEVICE); | |
739 | desc[curfrag+1].fields.length = frag->size; | |
740 | desc[curfrag+1].fields.valid = 1; | |
f4ff2872 BK |
741 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
742 | desc[curfrag+1].fields.no_csum = 1; | |
743 | desc[curfrag+1].fields.csum_good = 1; | |
744 | } | |
1da177e4 LT |
745 | |
746 | if(dma_mapping_error(desc[curfrag+1].fields.address)) { | |
747 | ibmveth_error_printk("tx: unable to map fragment %d\n", curfrag); | |
60296d9e SL |
748 | tx_map_failed++; |
749 | tx_dropped++; | |
1da177e4 LT |
750 | /* Free all the mappings we just created */ |
751 | while(curfrag < nfrags) { | |
752 | dma_unmap_single(&adapter->vdev->dev, | |
753 | desc[curfrag+1].fields.address, | |
754 | desc[curfrag+1].fields.length, | |
755 | DMA_TO_DEVICE); | |
756 | curfrag++; | |
757 | } | |
60296d9e | 758 | goto out; |
1da177e4 LT |
759 | } |
760 | } | |
761 | ||
762 | /* send the frame. Arbitrarily set retrycount to 1024 */ | |
763 | correlator = 0; | |
764 | retry_count = 1024; | |
765 | do { | |
766 | lpar_rc = h_send_logical_lan(adapter->vdev->unit_address, | |
767 | desc[0].desc, | |
768 | desc[1].desc, | |
769 | desc[2].desc, | |
770 | desc[3].desc, | |
771 | desc[4].desc, | |
772 | desc[5].desc, | |
b9377ffc AB |
773 | correlator, |
774 | &correlator); | |
706c8c93 | 775 | } while ((lpar_rc == H_BUSY) && (retry_count--)); |
d7fbeba6 | 776 | |
706c8c93 | 777 | if(lpar_rc != H_SUCCESS && lpar_rc != H_DROPPED) { |
1da177e4 LT |
778 | int i; |
779 | ibmveth_error_printk("tx: h_send_logical_lan failed with rc=%ld\n", lpar_rc); | |
780 | for(i = 0; i < 6; i++) { | |
781 | ibmveth_error_printk("tx: desc[%i] valid=%d, len=%d, address=0x%d\n", i, | |
782 | desc[i].fields.valid, desc[i].fields.length, desc[i].fields.address); | |
783 | } | |
60296d9e SL |
784 | tx_send_failed++; |
785 | tx_dropped++; | |
1da177e4 | 786 | } else { |
60296d9e SL |
787 | tx_packets++; |
788 | tx_bytes += skb->len; | |
0abe791e | 789 | netdev->trans_start = jiffies; |
1da177e4 LT |
790 | } |
791 | ||
792 | do { | |
793 | dma_unmap_single(&adapter->vdev->dev, | |
794 | desc[nfrags].fields.address, | |
795 | desc[nfrags].fields.length, DMA_TO_DEVICE); | |
796 | } while(--nfrags >= 0); | |
797 | ||
60296d9e SL |
798 | out: spin_lock_irqsave(&adapter->stats_lock, flags); |
799 | adapter->stats.tx_dropped += tx_dropped; | |
800 | adapter->stats.tx_bytes += tx_bytes; | |
801 | adapter->stats.tx_packets += tx_packets; | |
802 | adapter->tx_send_failed += tx_send_failed; | |
803 | adapter->tx_map_failed += tx_map_failed; | |
804 | spin_unlock_irqrestore(&adapter->stats_lock, flags); | |
805 | ||
1da177e4 LT |
806 | dev_kfree_skb(skb); |
807 | return 0; | |
808 | } | |
809 | ||
bea3348e | 810 | static int ibmveth_poll(struct napi_struct *napi, int budget) |
1da177e4 | 811 | { |
bea3348e SH |
812 | struct ibmveth_adapter *adapter = container_of(napi, struct ibmveth_adapter, napi); |
813 | struct net_device *netdev = adapter->netdev; | |
1da177e4 | 814 | int frames_processed = 0; |
1da177e4 LT |
815 | unsigned long lpar_rc; |
816 | ||
817 | restart_poll: | |
818 | do { | |
bea3348e | 819 | struct sk_buff *skb; |
1da177e4 | 820 | |
bea3348e SH |
821 | if (!ibmveth_rxq_pending_buffer(adapter)) |
822 | break; | |
1da177e4 | 823 | |
bea3348e SH |
824 | rmb(); |
825 | if (!ibmveth_rxq_buffer_valid(adapter)) { | |
826 | wmb(); /* suggested by larson1 */ | |
827 | adapter->rx_invalid_buffer++; | |
828 | ibmveth_debug_printk("recycling invalid buffer\n"); | |
829 | ibmveth_rxq_recycle_buffer(adapter); | |
830 | } else { | |
831 | int length = ibmveth_rxq_frame_length(adapter); | |
832 | int offset = ibmveth_rxq_frame_offset(adapter); | |
f4ff2872 BK |
833 | int csum_good = ibmveth_rxq_csum_good(adapter); |
834 | ||
bea3348e | 835 | skb = ibmveth_rxq_get_buffer(adapter); |
f4ff2872 BK |
836 | if (csum_good) |
837 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1da177e4 | 838 | |
bea3348e | 839 | ibmveth_rxq_harvest_buffer(adapter); |
1da177e4 | 840 | |
bea3348e SH |
841 | skb_reserve(skb, offset); |
842 | skb_put(skb, length); | |
843 | skb->protocol = eth_type_trans(skb, netdev); | |
1da177e4 | 844 | |
bea3348e | 845 | netif_receive_skb(skb); /* send it up */ |
1da177e4 | 846 | |
bea3348e SH |
847 | adapter->stats.rx_packets++; |
848 | adapter->stats.rx_bytes += length; | |
849 | frames_processed++; | |
850 | netdev->last_rx = jiffies; | |
1da177e4 | 851 | } |
bea3348e | 852 | } while (frames_processed < budget); |
1da177e4 | 853 | |
e2adbcb4 | 854 | ibmveth_replenish_task(adapter); |
1da177e4 | 855 | |
bea3348e SH |
856 | if (frames_processed < budget) { |
857 | /* We think we are done - reenable interrupts, | |
858 | * then check once more to make sure we are done. | |
859 | */ | |
860 | lpar_rc = h_vio_signal(adapter->vdev->unit_address, | |
861 | VIO_IRQ_ENABLE); | |
1da177e4 | 862 | |
bea3348e | 863 | ibmveth_assert(lpar_rc == H_SUCCESS); |
1da177e4 | 864 | |
bea3348e | 865 | netif_rx_complete(netdev, napi); |
1da177e4 | 866 | |
bea3348e SH |
867 | if (ibmveth_rxq_pending_buffer(adapter) && |
868 | netif_rx_reschedule(netdev, napi)) { | |
869 | lpar_rc = h_vio_signal(adapter->vdev->unit_address, | |
870 | VIO_IRQ_DISABLE); | |
871 | goto restart_poll; | |
872 | } | |
1da177e4 LT |
873 | } |
874 | ||
bea3348e | 875 | return frames_processed; |
1da177e4 LT |
876 | } |
877 | ||
7d12e780 | 878 | static irqreturn_t ibmveth_interrupt(int irq, void *dev_instance) |
d7fbeba6 | 879 | { |
1da177e4 LT |
880 | struct net_device *netdev = dev_instance; |
881 | struct ibmveth_adapter *adapter = netdev->priv; | |
882 | unsigned long lpar_rc; | |
883 | ||
bea3348e SH |
884 | if (netif_rx_schedule_prep(netdev, &adapter->napi)) { |
885 | lpar_rc = h_vio_signal(adapter->vdev->unit_address, | |
886 | VIO_IRQ_DISABLE); | |
706c8c93 | 887 | ibmveth_assert(lpar_rc == H_SUCCESS); |
bea3348e | 888 | __netif_rx_schedule(netdev, &adapter->napi); |
1da177e4 LT |
889 | } |
890 | return IRQ_HANDLED; | |
891 | } | |
892 | ||
893 | static struct net_device_stats *ibmveth_get_stats(struct net_device *dev) | |
894 | { | |
895 | struct ibmveth_adapter *adapter = dev->priv; | |
896 | return &adapter->stats; | |
897 | } | |
898 | ||
899 | static void ibmveth_set_multicast_list(struct net_device *netdev) | |
900 | { | |
901 | struct ibmveth_adapter *adapter = netdev->priv; | |
902 | unsigned long lpar_rc; | |
903 | ||
904 | if((netdev->flags & IFF_PROMISC) || (netdev->mc_count > adapter->mcastFilterSize)) { | |
905 | lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, | |
906 | IbmVethMcastEnableRecv | | |
907 | IbmVethMcastDisableFiltering, | |
908 | 0); | |
706c8c93 | 909 | if(lpar_rc != H_SUCCESS) { |
1da177e4 LT |
910 | ibmveth_error_printk("h_multicast_ctrl rc=%ld when entering promisc mode\n", lpar_rc); |
911 | } | |
912 | } else { | |
913 | struct dev_mc_list *mclist = netdev->mc_list; | |
914 | int i; | |
915 | /* clear the filter table & disable filtering */ | |
916 | lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, | |
917 | IbmVethMcastEnableRecv | | |
918 | IbmVethMcastDisableFiltering | | |
919 | IbmVethMcastClearFilterTable, | |
920 | 0); | |
706c8c93 | 921 | if(lpar_rc != H_SUCCESS) { |
1da177e4 LT |
922 | ibmveth_error_printk("h_multicast_ctrl rc=%ld when attempting to clear filter table\n", lpar_rc); |
923 | } | |
924 | /* add the addresses to the filter table */ | |
925 | for(i = 0; i < netdev->mc_count; ++i, mclist = mclist->next) { | |
926 | // add the multicast address to the filter table | |
927 | unsigned long mcast_addr = 0; | |
928 | memcpy(((char *)&mcast_addr)+2, mclist->dmi_addr, 6); | |
929 | lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, | |
930 | IbmVethMcastAddFilter, | |
931 | mcast_addr); | |
706c8c93 | 932 | if(lpar_rc != H_SUCCESS) { |
1da177e4 LT |
933 | ibmveth_error_printk("h_multicast_ctrl rc=%ld when adding an entry to the filter table\n", lpar_rc); |
934 | } | |
935 | } | |
d7fbeba6 | 936 | |
1da177e4 LT |
937 | /* re-enable filtering */ |
938 | lpar_rc = h_multicast_ctrl(adapter->vdev->unit_address, | |
939 | IbmVethMcastEnableFiltering, | |
940 | 0); | |
706c8c93 | 941 | if(lpar_rc != H_SUCCESS) { |
1da177e4 LT |
942 | ibmveth_error_printk("h_multicast_ctrl rc=%ld when enabling filtering\n", lpar_rc); |
943 | } | |
944 | } | |
945 | } | |
946 | ||
947 | static int ibmveth_change_mtu(struct net_device *dev, int new_mtu) | |
948 | { | |
b6d35182 | 949 | struct ibmveth_adapter *adapter = dev->priv; |
860f242e | 950 | int new_mtu_oh = new_mtu + IBMVETH_BUFF_OH; |
ce6eea58 BK |
951 | int reinit = 0; |
952 | int i, rc; | |
b6d35182 | 953 | |
860f242e | 954 | if (new_mtu < IBMVETH_MAX_MTU) |
1da177e4 | 955 | return -EINVAL; |
b6d35182 | 956 | |
ce6eea58 BK |
957 | for (i = 0; i < IbmVethNumBufferPools; i++) |
958 | if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) | |
959 | break; | |
960 | ||
961 | if (i == IbmVethNumBufferPools) | |
962 | return -EINVAL; | |
963 | ||
860f242e | 964 | /* Look for an active buffer pool that can hold the new MTU */ |
b6d35182 | 965 | for(i = 0; i<IbmVethNumBufferPools; i++) { |
ce6eea58 BK |
966 | if (!adapter->rx_buff_pool[i].active) { |
967 | adapter->rx_buff_pool[i].active = 1; | |
968 | reinit = 1; | |
969 | } | |
970 | ||
860f242e | 971 | if (new_mtu_oh < adapter->rx_buff_pool[i].buff_size) { |
ce6eea58 BK |
972 | if (reinit && netif_running(adapter->netdev)) { |
973 | adapter->pool_config = 1; | |
974 | ibmveth_close(adapter->netdev); | |
975 | adapter->pool_config = 0; | |
976 | dev->mtu = new_mtu; | |
977 | if ((rc = ibmveth_open(adapter->netdev))) | |
978 | return rc; | |
979 | } else | |
980 | dev->mtu = new_mtu; | |
860f242e | 981 | return 0; |
b6d35182 | 982 | } |
b6d35182 | 983 | } |
860f242e | 984 | return -EINVAL; |
1da177e4 LT |
985 | } |
986 | ||
6b422374 SL |
987 | #ifdef CONFIG_NET_POLL_CONTROLLER |
988 | static void ibmveth_poll_controller(struct net_device *dev) | |
989 | { | |
990 | ibmveth_replenish_task(dev->priv); | |
5f77113c | 991 | ibmveth_interrupt(dev->irq, dev); |
6b422374 SL |
992 | } |
993 | #endif | |
994 | ||
1da177e4 LT |
995 | static int __devinit ibmveth_probe(struct vio_dev *dev, const struct vio_device_id *id) |
996 | { | |
b6d35182 | 997 | int rc, i; |
f4ff2872 | 998 | long ret; |
1da177e4 | 999 | struct net_device *netdev; |
9dc83afd | 1000 | struct ibmveth_adapter *adapter; |
f4ff2872 | 1001 | union ibmveth_illan_attributes set_attr, ret_attr; |
1da177e4 LT |
1002 | |
1003 | unsigned char *mac_addr_p; | |
1004 | unsigned int *mcastFilterSize_p; | |
1005 | ||
1006 | ||
d7fbeba6 | 1007 | ibmveth_debug_printk_no_adapter("entering ibmveth_probe for UA 0x%x\n", |
1da177e4 LT |
1008 | dev->unit_address); |
1009 | ||
493a684a ME |
1010 | mac_addr_p = (unsigned char *) vio_get_attribute(dev, |
1011 | VETH_MAC_ADDR, NULL); | |
1da177e4 LT |
1012 | if(!mac_addr_p) { |
1013 | printk(KERN_ERR "(%s:%3.3d) ERROR: Can't find VETH_MAC_ADDR " | |
1014 | "attribute\n", __FILE__, __LINE__); | |
1015 | return 0; | |
1016 | } | |
d7fbeba6 | 1017 | |
493a684a ME |
1018 | mcastFilterSize_p = (unsigned int *) vio_get_attribute(dev, |
1019 | VETH_MCAST_FILTER_SIZE, NULL); | |
1da177e4 LT |
1020 | if(!mcastFilterSize_p) { |
1021 | printk(KERN_ERR "(%s:%3.3d) ERROR: Can't find " | |
1022 | "VETH_MCAST_FILTER_SIZE attribute\n", | |
1023 | __FILE__, __LINE__); | |
1024 | return 0; | |
1025 | } | |
d7fbeba6 | 1026 | |
1da177e4 LT |
1027 | netdev = alloc_etherdev(sizeof(struct ibmveth_adapter)); |
1028 | ||
1029 | if(!netdev) | |
1030 | return -ENOMEM; | |
1031 | ||
1032 | SET_MODULE_OWNER(netdev); | |
1033 | ||
1034 | adapter = netdev->priv; | |
1da177e4 LT |
1035 | dev->dev.driver_data = netdev; |
1036 | ||
1037 | adapter->vdev = dev; | |
1038 | adapter->netdev = netdev; | |
1039 | adapter->mcastFilterSize= *mcastFilterSize_p; | |
860f242e | 1040 | adapter->pool_config = 0; |
d7fbeba6 | 1041 | |
bea3348e SH |
1042 | netif_napi_add(netdev, &adapter->napi, ibmveth_poll, 16); |
1043 | ||
1da177e4 | 1044 | /* Some older boxes running PHYP non-natively have an OF that |
d7fbeba6 | 1045 | returns a 8-byte local-mac-address field (and the first |
1da177e4 | 1046 | 2 bytes have to be ignored) while newer boxes' OF return |
d7fbeba6 | 1047 | a 6-byte field. Note that IEEE 1275 specifies that |
1da177e4 | 1048 | local-mac-address must be a 6-byte field. |
d7fbeba6 | 1049 | The RPA doc specifies that the first byte must be 10b, so |
1da177e4 LT |
1050 | we'll just look for it to solve this 8 vs. 6 byte field issue */ |
1051 | ||
1052 | if ((*mac_addr_p & 0x3) != 0x02) | |
1053 | mac_addr_p += 2; | |
1054 | ||
1055 | adapter->mac_addr = 0; | |
1056 | memcpy(&adapter->mac_addr, mac_addr_p, 6); | |
1057 | ||
1da177e4 LT |
1058 | netdev->irq = dev->irq; |
1059 | netdev->open = ibmveth_open; | |
1da177e4 LT |
1060 | netdev->stop = ibmveth_close; |
1061 | netdev->hard_start_xmit = ibmveth_start_xmit; | |
1062 | netdev->get_stats = ibmveth_get_stats; | |
1063 | netdev->set_multicast_list = ibmveth_set_multicast_list; | |
1064 | netdev->do_ioctl = ibmveth_ioctl; | |
1065 | netdev->ethtool_ops = &netdev_ethtool_ops; | |
1066 | netdev->change_mtu = ibmveth_change_mtu; | |
1067 | SET_NETDEV_DEV(netdev, &dev->dev); | |
6b422374 SL |
1068 | #ifdef CONFIG_NET_POLL_CONTROLLER |
1069 | netdev->poll_controller = ibmveth_poll_controller; | |
1070 | #endif | |
d7fbeba6 | 1071 | netdev->features |= NETIF_F_LLTX; |
60296d9e | 1072 | spin_lock_init(&adapter->stats_lock); |
1da177e4 LT |
1073 | |
1074 | memcpy(&netdev->dev_addr, &adapter->mac_addr, netdev->addr_len); | |
1075 | ||
860f242e SL |
1076 | for(i = 0; i<IbmVethNumBufferPools; i++) { |
1077 | struct kobject *kobj = &adapter->rx_buff_pool[i].kobj; | |
d7fbeba6 JG |
1078 | ibmveth_init_buffer_pool(&adapter->rx_buff_pool[i], i, |
1079 | pool_count[i], pool_size[i], | |
860f242e SL |
1080 | pool_active[i]); |
1081 | kobj->parent = &dev->dev.kobj; | |
1082 | sprintf(kobj->name, "pool%d", i); | |
1083 | kobj->ktype = &ktype_veth_pool; | |
1084 | kobject_register(kobj); | |
1085 | } | |
1da177e4 LT |
1086 | |
1087 | ibmveth_debug_printk("adapter @ 0x%p\n", adapter); | |
1088 | ||
1da177e4 LT |
1089 | adapter->buffer_list_dma = DMA_ERROR_CODE; |
1090 | adapter->filter_list_dma = DMA_ERROR_CODE; | |
1091 | adapter->rx_queue.queue_dma = DMA_ERROR_CODE; | |
1092 | ||
1da177e4 LT |
1093 | ibmveth_debug_printk("registering netdev...\n"); |
1094 | ||
f4ff2872 BK |
1095 | ret = h_illan_attributes(dev->unit_address, 0, 0, &ret_attr.desc); |
1096 | ||
1097 | if (ret == H_SUCCESS && !ret_attr.fields.active_trunk && | |
1098 | !ret_attr.fields.trunk_priority && | |
1099 | ret_attr.fields.csum_offload_padded_pkt_support) { | |
1100 | set_attr.desc = 0; | |
1101 | set_attr.fields.tcp_csum_offload_ipv4 = 1; | |
1102 | ||
1103 | ret = h_illan_attributes(dev->unit_address, 0, set_attr.desc, | |
1104 | &ret_attr.desc); | |
1105 | ||
1106 | if (ret == H_SUCCESS) | |
1107 | netdev->features |= NETIF_F_IP_CSUM; | |
1108 | else | |
1109 | ret = h_illan_attributes(dev->unit_address, set_attr.desc, | |
1110 | 0, &ret_attr.desc); | |
1111 | } | |
1112 | ||
1da177e4 LT |
1113 | rc = register_netdev(netdev); |
1114 | ||
1115 | if(rc) { | |
1116 | ibmveth_debug_printk("failed to register netdev rc=%d\n", rc); | |
1117 | free_netdev(netdev); | |
1118 | return rc; | |
1119 | } | |
1120 | ||
1121 | ibmveth_debug_printk("registered\n"); | |
1122 | ||
1123 | ibmveth_proc_register_adapter(adapter); | |
1124 | ||
1125 | return 0; | |
1126 | } | |
1127 | ||
1128 | static int __devexit ibmveth_remove(struct vio_dev *dev) | |
1129 | { | |
1130 | struct net_device *netdev = dev->dev.driver_data; | |
1131 | struct ibmveth_adapter *adapter = netdev->priv; | |
860f242e SL |
1132 | int i; |
1133 | ||
1134 | for(i = 0; i<IbmVethNumBufferPools; i++) | |
1135 | kobject_unregister(&adapter->rx_buff_pool[i].kobj); | |
1da177e4 LT |
1136 | |
1137 | unregister_netdev(netdev); | |
1138 | ||
1139 | ibmveth_proc_unregister_adapter(adapter); | |
1140 | ||
1141 | free_netdev(netdev); | |
1142 | return 0; | |
1143 | } | |
1144 | ||
1145 | #ifdef CONFIG_PROC_FS | |
1146 | static void ibmveth_proc_register_driver(void) | |
1147 | { | |
457c4cbc | 1148 | ibmveth_proc_dir = proc_mkdir(IBMVETH_PROC_DIR, init_net.proc_net); |
1da177e4 LT |
1149 | if (ibmveth_proc_dir) { |
1150 | SET_MODULE_OWNER(ibmveth_proc_dir); | |
1151 | } | |
1152 | } | |
1153 | ||
1154 | static void ibmveth_proc_unregister_driver(void) | |
1155 | { | |
457c4cbc | 1156 | remove_proc_entry(IBMVETH_PROC_DIR, init_net.proc_net); |
1da177e4 LT |
1157 | } |
1158 | ||
d7fbeba6 | 1159 | static void *ibmveth_seq_start(struct seq_file *seq, loff_t *pos) |
1da177e4 LT |
1160 | { |
1161 | if (*pos == 0) { | |
1162 | return (void *)1; | |
1163 | } else { | |
1164 | return NULL; | |
1165 | } | |
1166 | } | |
1167 | ||
1168 | static void *ibmveth_seq_next(struct seq_file *seq, void *v, loff_t *pos) | |
1169 | { | |
1170 | ++*pos; | |
1171 | return NULL; | |
1172 | } | |
1173 | ||
d7fbeba6 | 1174 | static void ibmveth_seq_stop(struct seq_file *seq, void *v) |
1da177e4 LT |
1175 | { |
1176 | } | |
1177 | ||
d7fbeba6 | 1178 | static int ibmveth_seq_show(struct seq_file *seq, void *v) |
1da177e4 LT |
1179 | { |
1180 | struct ibmveth_adapter *adapter = seq->private; | |
1181 | char *current_mac = ((char*) &adapter->netdev->dev_addr); | |
1182 | char *firmware_mac = ((char*) &adapter->mac_addr) ; | |
1183 | ||
1184 | seq_printf(seq, "%s %s\n\n", ibmveth_driver_string, ibmveth_driver_version); | |
d7fbeba6 | 1185 | |
1da177e4 | 1186 | seq_printf(seq, "Unit Address: 0x%x\n", adapter->vdev->unit_address); |
1da177e4 LT |
1187 | seq_printf(seq, "Current MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", |
1188 | current_mac[0], current_mac[1], current_mac[2], | |
1189 | current_mac[3], current_mac[4], current_mac[5]); | |
1190 | seq_printf(seq, "Firmware MAC: %02X:%02X:%02X:%02X:%02X:%02X\n", | |
1191 | firmware_mac[0], firmware_mac[1], firmware_mac[2], | |
1192 | firmware_mac[3], firmware_mac[4], firmware_mac[5]); | |
d7fbeba6 | 1193 | |
1da177e4 LT |
1194 | seq_printf(seq, "\nAdapter Statistics:\n"); |
1195 | seq_printf(seq, " TX: skbuffs linearized: %ld\n", adapter->tx_linearized); | |
1196 | seq_printf(seq, " multi-descriptor sends: %ld\n", adapter->tx_multidesc_send); | |
1197 | seq_printf(seq, " skb_linearize failures: %ld\n", adapter->tx_linearize_failed); | |
1198 | seq_printf(seq, " vio_map_single failres: %ld\n", adapter->tx_map_failed); | |
1199 | seq_printf(seq, " send failures: %ld\n", adapter->tx_send_failed); | |
1200 | seq_printf(seq, " RX: replenish task cycles: %ld\n", adapter->replenish_task_cycles); | |
1201 | seq_printf(seq, " alloc_skb_failures: %ld\n", adapter->replenish_no_mem); | |
1202 | seq_printf(seq, " add buffer failures: %ld\n", adapter->replenish_add_buff_failure); | |
1203 | seq_printf(seq, " invalid buffers: %ld\n", adapter->rx_invalid_buffer); | |
1204 | seq_printf(seq, " no buffers: %ld\n", adapter->rx_no_buffer); | |
d7fbeba6 | 1205 | |
1da177e4 LT |
1206 | return 0; |
1207 | } | |
1208 | static struct seq_operations ibmveth_seq_ops = { | |
1209 | .start = ibmveth_seq_start, | |
1210 | .next = ibmveth_seq_next, | |
1211 | .stop = ibmveth_seq_stop, | |
1212 | .show = ibmveth_seq_show, | |
1213 | }; | |
1214 | ||
1215 | static int ibmveth_proc_open(struct inode *inode, struct file *file) | |
1216 | { | |
1217 | struct seq_file *seq; | |
1218 | struct proc_dir_entry *proc; | |
1219 | int rc; | |
1220 | ||
1221 | rc = seq_open(file, &ibmveth_seq_ops); | |
1222 | if (!rc) { | |
1223 | /* recover the pointer buried in proc_dir_entry data */ | |
1224 | seq = file->private_data; | |
1225 | proc = PDE(inode); | |
1226 | seq->private = proc->data; | |
1227 | } | |
1228 | return rc; | |
1229 | } | |
1230 | ||
d54b1fdb | 1231 | static const struct file_operations ibmveth_proc_fops = { |
1da177e4 LT |
1232 | .owner = THIS_MODULE, |
1233 | .open = ibmveth_proc_open, | |
1234 | .read = seq_read, | |
1235 | .llseek = seq_lseek, | |
1236 | .release = seq_release, | |
1237 | }; | |
1238 | ||
1239 | static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter) | |
1240 | { | |
1241 | struct proc_dir_entry *entry; | |
1242 | if (ibmveth_proc_dir) { | |
03a85d09 SL |
1243 | char u_addr[10]; |
1244 | sprintf(u_addr, "%x", adapter->vdev->unit_address); | |
1245 | entry = create_proc_entry(u_addr, S_IFREG, ibmveth_proc_dir); | |
1da177e4 LT |
1246 | if (!entry) { |
1247 | ibmveth_error_printk("Cannot create adapter proc entry"); | |
1248 | } else { | |
1249 | entry->data = (void *) adapter; | |
1250 | entry->proc_fops = &ibmveth_proc_fops; | |
1251 | SET_MODULE_OWNER(entry); | |
1252 | } | |
1253 | } | |
1254 | return; | |
1255 | } | |
1256 | ||
1257 | static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter) | |
1258 | { | |
1259 | if (ibmveth_proc_dir) { | |
03a85d09 SL |
1260 | char u_addr[10]; |
1261 | sprintf(u_addr, "%x", adapter->vdev->unit_address); | |
1262 | remove_proc_entry(u_addr, ibmveth_proc_dir); | |
1da177e4 LT |
1263 | } |
1264 | } | |
1265 | ||
1266 | #else /* CONFIG_PROC_FS */ | |
d7fbeba6 | 1267 | static void ibmveth_proc_register_adapter(struct ibmveth_adapter *adapter) |
1da177e4 LT |
1268 | { |
1269 | } | |
1270 | ||
d7fbeba6 | 1271 | static void ibmveth_proc_unregister_adapter(struct ibmveth_adapter *adapter) |
1da177e4 LT |
1272 | { |
1273 | } | |
1274 | static void ibmveth_proc_register_driver(void) | |
1275 | { | |
1276 | } | |
1277 | ||
1278 | static void ibmveth_proc_unregister_driver(void) | |
1279 | { | |
1280 | } | |
1281 | #endif /* CONFIG_PROC_FS */ | |
1282 | ||
860f242e SL |
1283 | static struct attribute veth_active_attr; |
1284 | static struct attribute veth_num_attr; | |
1285 | static struct attribute veth_size_attr; | |
1286 | ||
1287 | static ssize_t veth_pool_show(struct kobject * kobj, | |
1288 | struct attribute * attr, char * buf) | |
1289 | { | |
d7fbeba6 | 1290 | struct ibmveth_buff_pool *pool = container_of(kobj, |
860f242e SL |
1291 | struct ibmveth_buff_pool, |
1292 | kobj); | |
1293 | ||
1294 | if (attr == &veth_active_attr) | |
1295 | return sprintf(buf, "%d\n", pool->active); | |
1296 | else if (attr == &veth_num_attr) | |
1297 | return sprintf(buf, "%d\n", pool->size); | |
1298 | else if (attr == &veth_size_attr) | |
1299 | return sprintf(buf, "%d\n", pool->buff_size); | |
1300 | return 0; | |
1301 | } | |
1302 | ||
1303 | static ssize_t veth_pool_store(struct kobject * kobj, struct attribute * attr, | |
1304 | const char * buf, size_t count) | |
1305 | { | |
d7fbeba6 | 1306 | struct ibmveth_buff_pool *pool = container_of(kobj, |
860f242e SL |
1307 | struct ibmveth_buff_pool, |
1308 | kobj); | |
d7fbeba6 | 1309 | struct net_device *netdev = |
860f242e SL |
1310 | container_of(kobj->parent, struct device, kobj)->driver_data; |
1311 | struct ibmveth_adapter *adapter = netdev->priv; | |
1312 | long value = simple_strtol(buf, NULL, 10); | |
1313 | long rc; | |
1314 | ||
1315 | if (attr == &veth_active_attr) { | |
1316 | if (value && !pool->active) { | |
4aa9c93e BK |
1317 | if (netif_running(netdev)) { |
1318 | if(ibmveth_alloc_buffer_pool(pool)) { | |
1319 | ibmveth_error_printk("unable to alloc pool\n"); | |
1320 | return -ENOMEM; | |
1321 | } | |
1322 | pool->active = 1; | |
1323 | adapter->pool_config = 1; | |
1324 | ibmveth_close(netdev); | |
1325 | adapter->pool_config = 0; | |
1326 | if ((rc = ibmveth_open(netdev))) | |
1327 | return rc; | |
1328 | } else | |
1329 | pool->active = 1; | |
860f242e SL |
1330 | } else if (!value && pool->active) { |
1331 | int mtu = netdev->mtu + IBMVETH_BUFF_OH; | |
1332 | int i; | |
1333 | /* Make sure there is a buffer pool with buffers that | |
1334 | can hold a packet of the size of the MTU */ | |
76b9cfcc | 1335 | for (i = 0; i < IbmVethNumBufferPools; i++) { |
860f242e SL |
1336 | if (pool == &adapter->rx_buff_pool[i]) |
1337 | continue; | |
1338 | if (!adapter->rx_buff_pool[i].active) | |
1339 | continue; | |
76b9cfcc BK |
1340 | if (mtu <= adapter->rx_buff_pool[i].buff_size) |
1341 | break; | |
860f242e | 1342 | } |
76b9cfcc BK |
1343 | |
1344 | if (i == IbmVethNumBufferPools) { | |
860f242e SL |
1345 | ibmveth_error_printk("no active pool >= MTU\n"); |
1346 | return -EPERM; | |
1347 | } | |
76b9cfcc BK |
1348 | |
1349 | pool->active = 0; | |
1350 | if (netif_running(netdev)) { | |
1351 | adapter->pool_config = 1; | |
1352 | ibmveth_close(netdev); | |
1353 | adapter->pool_config = 0; | |
1354 | if ((rc = ibmveth_open(netdev))) | |
1355 | return rc; | |
1356 | } | |
860f242e SL |
1357 | } |
1358 | } else if (attr == &veth_num_attr) { | |
1359 | if (value <= 0 || value > IBMVETH_MAX_POOL_COUNT) | |
1360 | return -EINVAL; | |
1361 | else { | |
4aa9c93e BK |
1362 | if (netif_running(netdev)) { |
1363 | adapter->pool_config = 1; | |
1364 | ibmveth_close(netdev); | |
1365 | adapter->pool_config = 0; | |
1366 | pool->size = value; | |
1367 | if ((rc = ibmveth_open(netdev))) | |
1368 | return rc; | |
1369 | } else | |
1370 | pool->size = value; | |
860f242e SL |
1371 | } |
1372 | } else if (attr == &veth_size_attr) { | |
1373 | if (value <= IBMVETH_BUFF_OH || value > IBMVETH_MAX_BUF_SIZE) | |
1374 | return -EINVAL; | |
1375 | else { | |
4aa9c93e BK |
1376 | if (netif_running(netdev)) { |
1377 | adapter->pool_config = 1; | |
1378 | ibmveth_close(netdev); | |
1379 | adapter->pool_config = 0; | |
1380 | pool->buff_size = value; | |
1381 | if ((rc = ibmveth_open(netdev))) | |
1382 | return rc; | |
1383 | } else | |
1384 | pool->buff_size = value; | |
860f242e SL |
1385 | } |
1386 | } | |
1387 | ||
1388 | /* kick the interrupt handler to allocate/deallocate pools */ | |
7d12e780 | 1389 | ibmveth_interrupt(netdev->irq, netdev); |
860f242e SL |
1390 | return count; |
1391 | } | |
1392 | ||
1393 | ||
1394 | #define ATTR(_name, _mode) \ | |
1395 | struct attribute veth_##_name##_attr = { \ | |
7b595756 | 1396 | .name = __stringify(_name), .mode = _mode, \ |
860f242e SL |
1397 | }; |
1398 | ||
1399 | static ATTR(active, 0644); | |
1400 | static ATTR(num, 0644); | |
1401 | static ATTR(size, 0644); | |
1402 | ||
1403 | static struct attribute * veth_pool_attrs[] = { | |
1404 | &veth_active_attr, | |
1405 | &veth_num_attr, | |
1406 | &veth_size_attr, | |
1407 | NULL, | |
1408 | }; | |
1409 | ||
1410 | static struct sysfs_ops veth_pool_ops = { | |
1411 | .show = veth_pool_show, | |
1412 | .store = veth_pool_store, | |
1413 | }; | |
1414 | ||
1415 | static struct kobj_type ktype_veth_pool = { | |
1416 | .release = NULL, | |
1417 | .sysfs_ops = &veth_pool_ops, | |
1418 | .default_attrs = veth_pool_attrs, | |
1419 | }; | |
1420 | ||
1421 | ||
1da177e4 LT |
1422 | static struct vio_device_id ibmveth_device_table[] __devinitdata= { |
1423 | { "network", "IBM,l-lan"}, | |
fb120da6 | 1424 | { "", "" } |
1da177e4 | 1425 | }; |
1da177e4 LT |
1426 | MODULE_DEVICE_TABLE(vio, ibmveth_device_table); |
1427 | ||
1428 | static struct vio_driver ibmveth_driver = { | |
6fdf5392 SR |
1429 | .id_table = ibmveth_device_table, |
1430 | .probe = ibmveth_probe, | |
1431 | .remove = ibmveth_remove, | |
1432 | .driver = { | |
1433 | .name = ibmveth_driver_name, | |
915124d8 | 1434 | .owner = THIS_MODULE, |
6fdf5392 | 1435 | } |
1da177e4 LT |
1436 | }; |
1437 | ||
1438 | static int __init ibmveth_module_init(void) | |
1439 | { | |
1440 | ibmveth_printk("%s: %s %s\n", ibmveth_driver_name, ibmveth_driver_string, ibmveth_driver_version); | |
1441 | ||
1442 | ibmveth_proc_register_driver(); | |
1443 | ||
1444 | return vio_register_driver(&ibmveth_driver); | |
1445 | } | |
1446 | ||
1447 | static void __exit ibmveth_module_exit(void) | |
1448 | { | |
1449 | vio_unregister_driver(&ibmveth_driver); | |
1450 | ibmveth_proc_unregister_driver(); | |
d7fbeba6 | 1451 | } |
1da177e4 LT |
1452 | |
1453 | module_init(ibmveth_module_init); | |
1454 | module_exit(ibmveth_module_exit); |