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7a291083 JBT |
1 | /* |
2 | * linux/drivers/net/ehea/ehea_main.c | |
3 | * | |
4 | * eHEA ethernet device driver for IBM eServer System p | |
5 | * | |
6 | * (C) Copyright IBM Corp. 2006 | |
7 | * | |
8 | * Authors: | |
9 | * Christoph Raisch <raisch@de.ibm.com> | |
10 | * Jan-Bernd Themann <themann@de.ibm.com> | |
11 | * Thomas Klein <tklein@de.ibm.com> | |
12 | * | |
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 | #include <linux/in.h> | |
30 | #include <linux/ip.h> | |
31 | #include <linux/tcp.h> | |
32 | #include <linux/udp.h> | |
33 | #include <linux/if.h> | |
34 | #include <linux/list.h> | |
35 | #include <linux/if_ether.h> | |
36 | #include <net/ip.h> | |
37 | ||
38 | #include "ehea.h" | |
39 | #include "ehea_qmr.h" | |
40 | #include "ehea_phyp.h" | |
41 | ||
42 | ||
43 | MODULE_LICENSE("GPL"); | |
44 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
45 | MODULE_DESCRIPTION("IBM eServer HEA Driver"); | |
46 | MODULE_VERSION(DRV_VERSION); | |
47 | ||
48 | ||
49 | static int msg_level = -1; | |
50 | static int rq1_entries = EHEA_DEF_ENTRIES_RQ1; | |
51 | static int rq2_entries = EHEA_DEF_ENTRIES_RQ2; | |
52 | static int rq3_entries = EHEA_DEF_ENTRIES_RQ3; | |
53 | static int sq_entries = EHEA_DEF_ENTRIES_SQ; | |
18604c54 JBT |
54 | static int use_mcs = 0; |
55 | static int num_tx_qps = EHEA_NUM_TX_QP; | |
7a291083 JBT |
56 | |
57 | module_param(msg_level, int, 0); | |
58 | module_param(rq1_entries, int, 0); | |
59 | module_param(rq2_entries, int, 0); | |
60 | module_param(rq3_entries, int, 0); | |
61 | module_param(sq_entries, int, 0); | |
18604c54 JBT |
62 | module_param(use_mcs, int, 0); |
63 | module_param(num_tx_qps, int, 0); | |
7a291083 | 64 | |
18604c54 | 65 | MODULE_PARM_DESC(num_tx_qps, "Number of TX-QPS"); |
7a291083 JBT |
66 | MODULE_PARM_DESC(msg_level, "msg_level"); |
67 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " | |
68 | "[2^x - 1], x = [6..14]. Default = " | |
69 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); | |
70 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
71 | "[2^x - 1], x = [6..14]. Default = " | |
72 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); | |
73 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
74 | "[2^x - 1], x = [6..14]. Default = " | |
75 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); | |
76 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
77 | "[2^x - 1], x = [6..14]. Default = " | |
78 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); | |
18604c54 | 79 | MODULE_PARM_DESC(use_mcs, " 0:NAPI, 1:Multiple receive queues, Default = 1 "); |
7a291083 | 80 | |
d1dea38d TK |
81 | static int port_name_cnt = 0; |
82 | ||
83 | static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev, | |
84 | const struct of_device_id *id); | |
85 | ||
86 | static int __devexit ehea_remove(struct ibmebus_dev *dev); | |
87 | ||
88 | static struct of_device_id ehea_device_table[] = { | |
89 | { | |
90 | .name = "lhea", | |
91 | .compatible = "IBM,lhea", | |
92 | }, | |
93 | {}, | |
94 | }; | |
95 | ||
96 | static struct ibmebus_driver ehea_driver = { | |
97 | .name = "ehea", | |
98 | .id_table = ehea_device_table, | |
99 | .probe = ehea_probe_adapter, | |
100 | .remove = ehea_remove, | |
101 | }; | |
102 | ||
7a291083 JBT |
103 | void ehea_dump(void *adr, int len, char *msg) { |
104 | int x; | |
105 | unsigned char *deb = adr; | |
106 | for (x = 0; x < len; x += 16) { | |
d2db9eea | 107 | printk(DRV_NAME " %s adr=%p ofs=%04x %016lx %016lx\n", msg, |
7a291083 JBT |
108 | deb, x, *((u64*)&deb[0]), *((u64*)&deb[8])); |
109 | deb += 16; | |
110 | } | |
111 | } | |
112 | ||
113 | static struct net_device_stats *ehea_get_stats(struct net_device *dev) | |
114 | { | |
115 | struct ehea_port *port = netdev_priv(dev); | |
116 | struct net_device_stats *stats = &port->stats; | |
117 | struct hcp_ehea_port_cb2 *cb2; | |
118 | u64 hret, rx_packets; | |
119 | int i; | |
120 | ||
121 | memset(stats, 0, sizeof(*stats)); | |
122 | ||
a1d261c5 | 123 | cb2 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
124 | if (!cb2) { |
125 | ehea_error("no mem for cb2"); | |
126 | goto out; | |
127 | } | |
128 | ||
129 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
130 | port->logical_port_id, | |
131 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
132 | if (hret != H_SUCCESS) { | |
133 | ehea_error("query_ehea_port failed"); | |
134 | goto out_herr; | |
135 | } | |
136 | ||
137 | if (netif_msg_hw(port)) | |
138 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
139 | ||
140 | rx_packets = 0; | |
141 | for (i = 0; i < port->num_def_qps; i++) | |
142 | rx_packets += port->port_res[i].rx_packets; | |
143 | ||
144 | stats->tx_packets = cb2->txucp + cb2->txmcp + cb2->txbcp; | |
145 | stats->multicast = cb2->rxmcp; | |
146 | stats->rx_errors = cb2->rxuerr; | |
147 | stats->rx_bytes = cb2->rxo; | |
148 | stats->tx_bytes = cb2->txo; | |
149 | stats->rx_packets = rx_packets; | |
150 | ||
151 | out_herr: | |
152 | kfree(cb2); | |
153 | out: | |
154 | return stats; | |
155 | } | |
156 | ||
157 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
158 | { | |
159 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
160 | struct net_device *dev = pr->port->netdev; | |
161 | int max_index_mask = pr->rq1_skba.len - 1; | |
162 | int i; | |
163 | ||
164 | if (!nr_of_wqes) | |
165 | return; | |
166 | ||
167 | for (i = 0; i < nr_of_wqes; i++) { | |
168 | if (!skb_arr_rq1[index]) { | |
169 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
170 | EHEA_L_PKT_SIZE); | |
171 | if (!skb_arr_rq1[index]) { | |
172 | ehea_error("%s: no mem for skb/%d wqes filled", | |
173 | dev->name, i); | |
174 | break; | |
175 | } | |
176 | } | |
177 | index--; | |
178 | index &= max_index_mask; | |
179 | } | |
180 | /* Ring doorbell */ | |
181 | ehea_update_rq1a(pr->qp, i); | |
182 | } | |
183 | ||
184 | static int ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) | |
185 | { | |
186 | int ret = 0; | |
187 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
188 | struct net_device *dev = pr->port->netdev; | |
189 | int i; | |
190 | ||
191 | for (i = 0; i < pr->rq1_skba.len; i++) { | |
192 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); | |
193 | if (!skb_arr_rq1[i]) { | |
194 | ehea_error("%s: no mem for skb/%d wqes filled", | |
195 | dev->name, i); | |
196 | ret = -ENOMEM; | |
197 | goto out; | |
198 | } | |
199 | } | |
200 | /* Ring doorbell */ | |
201 | ehea_update_rq1a(pr->qp, nr_rq1a); | |
202 | out: | |
203 | return ret; | |
204 | } | |
205 | ||
206 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
207 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
208 | int num_wqes, int wqe_type, int packet_size) | |
209 | { | |
210 | struct net_device *dev = pr->port->netdev; | |
211 | struct ehea_qp *qp = pr->qp; | |
212 | struct sk_buff **skb_arr = q_skba->arr; | |
213 | struct ehea_rwqe *rwqe; | |
214 | int i, index, max_index_mask, fill_wqes; | |
215 | int ret = 0; | |
216 | ||
217 | fill_wqes = q_skba->os_skbs + num_wqes; | |
218 | ||
219 | if (!fill_wqes) | |
220 | return ret; | |
221 | ||
222 | index = q_skba->index; | |
223 | max_index_mask = q_skba->len - 1; | |
224 | for (i = 0; i < fill_wqes; i++) { | |
225 | struct sk_buff *skb = netdev_alloc_skb(dev, packet_size); | |
226 | if (!skb) { | |
227 | ehea_error("%s: no mem for skb/%d wqes filled", | |
18604c54 | 228 | pr->port->netdev->name, i); |
7a291083 JBT |
229 | q_skba->os_skbs = fill_wqes - i; |
230 | ret = -ENOMEM; | |
231 | break; | |
232 | } | |
233 | skb_reserve(skb, NET_IP_ALIGN); | |
234 | ||
235 | skb_arr[index] = skb; | |
236 | ||
237 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
238 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
239 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); | |
240 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; | |
241 | rwqe->sg_list[0].vaddr = (u64)skb->data; | |
242 | rwqe->sg_list[0].len = packet_size; | |
243 | rwqe->data_segments = 1; | |
244 | ||
245 | index++; | |
246 | index &= max_index_mask; | |
247 | } | |
248 | q_skba->index = index; | |
249 | ||
250 | /* Ring doorbell */ | |
251 | iosync(); | |
252 | if (rq_nr == 2) | |
253 | ehea_update_rq2a(pr->qp, i); | |
254 | else | |
255 | ehea_update_rq3a(pr->qp, i); | |
256 | ||
257 | return ret; | |
258 | } | |
259 | ||
260 | ||
261 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
262 | { | |
263 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
264 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
265 | EHEA_RQ2_PKT_SIZE + NET_IP_ALIGN); | |
266 | } | |
267 | ||
268 | ||
269 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
270 | { | |
271 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
272 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
273 | EHEA_MAX_PACKET_SIZE + NET_IP_ALIGN); | |
274 | } | |
275 | ||
276 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
277 | { | |
278 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
279 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
280 | return 0; | |
281 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
282 | (cqe->header_length == 0)) | |
283 | return 0; | |
284 | return -EINVAL; | |
285 | } | |
286 | ||
287 | static inline void ehea_fill_skb(struct net_device *dev, | |
288 | struct sk_buff *skb, struct ehea_cqe *cqe) | |
289 | { | |
290 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
291 | ||
292 | skb_put(skb, length); | |
293 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
294 | skb->protocol = eth_type_trans(skb, dev); | |
295 | } | |
296 | ||
297 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
298 | int arr_len, | |
299 | struct ehea_cqe *cqe) | |
300 | { | |
301 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
302 | struct sk_buff *skb; | |
303 | void *pref; | |
304 | int x; | |
305 | ||
306 | x = skb_index + 1; | |
307 | x &= (arr_len - 1); | |
308 | ||
309 | pref = skb_array[x]; | |
310 | prefetchw(pref); | |
311 | prefetchw(pref + EHEA_CACHE_LINE); | |
312 | ||
313 | pref = (skb_array[x]->data); | |
314 | prefetch(pref); | |
315 | prefetch(pref + EHEA_CACHE_LINE); | |
316 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
317 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
318 | skb = skb_array[skb_index]; | |
319 | skb_array[skb_index] = NULL; | |
320 | return skb; | |
321 | } | |
322 | ||
323 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
324 | int arr_len, int wqe_index) | |
325 | { | |
326 | struct sk_buff *skb; | |
327 | void *pref; | |
328 | int x; | |
329 | ||
330 | x = wqe_index + 1; | |
331 | x &= (arr_len - 1); | |
332 | ||
333 | pref = skb_array[x]; | |
334 | prefetchw(pref); | |
335 | prefetchw(pref + EHEA_CACHE_LINE); | |
336 | ||
337 | pref = (skb_array[x]->data); | |
338 | prefetchw(pref); | |
339 | prefetchw(pref + EHEA_CACHE_LINE); | |
340 | ||
341 | skb = skb_array[wqe_index]; | |
342 | skb_array[wqe_index] = NULL; | |
343 | return skb; | |
344 | } | |
345 | ||
346 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
347 | struct ehea_cqe *cqe, int *processed_rq2, | |
348 | int *processed_rq3) | |
349 | { | |
350 | struct sk_buff *skb; | |
351 | ||
acbddb59 JBT |
352 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
353 | pr->p_stats.err_tcp_cksum++; | |
354 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
355 | pr->p_stats.err_ip_cksum++; | |
356 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
357 | pr->p_stats.err_frame_crc++; | |
358 | ||
7a291083 JBT |
359 | if (netif_msg_rx_err(pr->port)) { |
360 | ehea_error("CQE Error for QP %d", pr->qp->init_attr.qp_nr); | |
361 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
362 | } | |
363 | ||
364 | if (rq == 2) { | |
365 | *processed_rq2 += 1; | |
366 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
367 | dev_kfree_skb(skb); | |
368 | } else if (rq == 3) { | |
369 | *processed_rq3 += 1; | |
370 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
371 | dev_kfree_skb(skb); | |
372 | } | |
373 | ||
374 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
375 | ehea_error("Critical receive error. Resetting port."); | |
376 | queue_work(pr->port->adapter->ehea_wq, &pr->port->reset_task); | |
377 | return 1; | |
378 | } | |
379 | ||
380 | return 0; | |
381 | } | |
382 | ||
18604c54 JBT |
383 | static struct ehea_cqe *ehea_proc_rwqes(struct net_device *dev, |
384 | struct ehea_port_res *pr, | |
385 | int *budget) | |
7a291083 | 386 | { |
18604c54 | 387 | struct ehea_port *port = pr->port; |
7a291083 JBT |
388 | struct ehea_qp *qp = pr->qp; |
389 | struct ehea_cqe *cqe; | |
390 | struct sk_buff *skb; | |
391 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
392 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
393 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
394 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
395 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
396 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
397 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
18604c54 | 398 | int wqe_index, last_wqe_index, rq, my_quota, port_reset; |
7a291083 JBT |
399 | |
400 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
401 | last_wqe_index = 0; | |
402 | my_quota = min(*budget, dev->quota); | |
7a291083 | 403 | |
7a291083 JBT |
404 | cqe = ehea_poll_rq1(qp, &wqe_index); |
405 | while ((my_quota > 0) && cqe) { | |
406 | ehea_inc_rq1(qp); | |
407 | processed_rq1++; | |
408 | processed++; | |
409 | my_quota--; | |
410 | if (netif_msg_rx_status(port)) | |
411 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
412 | ||
413 | last_wqe_index = wqe_index; | |
414 | rmb(); | |
415 | if (!ehea_check_cqe(cqe, &rq)) { | |
416 | if (rq == 1) { /* LL RQ1 */ | |
417 | skb = get_skb_by_index_ll(skb_arr_rq1, | |
418 | skb_arr_rq1_len, | |
419 | wqe_index); | |
420 | if (unlikely(!skb)) { | |
421 | if (netif_msg_rx_err(port)) | |
422 | ehea_error("LL rq1: skb=NULL"); | |
18604c54 JBT |
423 | |
424 | skb = netdev_alloc_skb(port->netdev, | |
7a291083 JBT |
425 | EHEA_L_PKT_SIZE); |
426 | if (!skb) | |
427 | break; | |
428 | } | |
27d7ff46 ACM |
429 | skb_copy_to_linear_data(skb, ((char*)cqe) + 64, |
430 | cqe->num_bytes_transfered - 4); | |
7a291083 JBT |
431 | ehea_fill_skb(dev, skb, cqe); |
432 | } else if (rq == 2) { /* RQ2 */ | |
433 | skb = get_skb_by_index(skb_arr_rq2, | |
434 | skb_arr_rq2_len, cqe); | |
435 | if (unlikely(!skb)) { | |
436 | if (netif_msg_rx_err(port)) | |
437 | ehea_error("rq2: skb=NULL"); | |
438 | break; | |
439 | } | |
18604c54 | 440 | ehea_fill_skb(port->netdev, skb, cqe); |
7a291083 JBT |
441 | processed_rq2++; |
442 | } else { /* RQ3 */ | |
443 | skb = get_skb_by_index(skb_arr_rq3, | |
444 | skb_arr_rq3_len, cqe); | |
445 | if (unlikely(!skb)) { | |
446 | if (netif_msg_rx_err(port)) | |
447 | ehea_error("rq3: skb=NULL"); | |
448 | break; | |
449 | } | |
18604c54 | 450 | ehea_fill_skb(port->netdev, skb, cqe); |
7a291083 JBT |
451 | processed_rq3++; |
452 | } | |
453 | ||
454 | if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) | |
455 | vlan_hwaccel_receive_skb(skb, port->vgrp, | |
456 | cqe->vlan_tag); | |
457 | else | |
458 | netif_receive_skb(skb); | |
18604c54 | 459 | } else { |
acbddb59 | 460 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
461 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
462 | &processed_rq2, | |
463 | &processed_rq3); | |
464 | if (port_reset) | |
465 | break; | |
466 | } | |
467 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
468 | } | |
469 | ||
7a291083 | 470 | pr->rx_packets += processed; |
18604c54 | 471 | *budget -= processed; |
7a291083 JBT |
472 | |
473 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
474 | ehea_refill_rq2(pr, processed_rq2); | |
475 | ehea_refill_rq3(pr, processed_rq3); | |
476 | ||
18604c54 JBT |
477 | cqe = ehea_poll_rq1(qp, &wqe_index); |
478 | return cqe; | |
7a291083 JBT |
479 | } |
480 | ||
18604c54 | 481 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 482 | { |
acbddb59 | 483 | struct sk_buff *skb; |
7a291083 JBT |
484 | struct ehea_cq *send_cq = pr->send_cq; |
485 | struct ehea_cqe *cqe; | |
18604c54 | 486 | int quota = my_quota; |
7a291083 JBT |
487 | int cqe_counter = 0; |
488 | int swqe_av = 0; | |
acbddb59 | 489 | int index; |
7a291083 JBT |
490 | unsigned long flags; |
491 | ||
18604c54 JBT |
492 | cqe = ehea_poll_cq(send_cq); |
493 | while(cqe && (quota > 0)) { | |
494 | ehea_inc_cq(send_cq); | |
495 | ||
7a291083 JBT |
496 | cqe_counter++; |
497 | rmb(); | |
498 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { | |
499 | ehea_error("Send Completion Error: Resetting port"); | |
500 | if (netif_msg_tx_err(pr->port)) | |
501 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
502 | queue_work(pr->port->adapter->ehea_wq, | |
503 | &pr->port->reset_task); | |
504 | break; | |
505 | } | |
506 | ||
507 | if (netif_msg_tx_done(pr->port)) | |
508 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
509 | ||
510 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
511 | == EHEA_SWQE2_TYPE)) { |
512 | ||
513 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
514 | skb = pr->sq_skba.arr[index]; | |
515 | dev_kfree_skb(skb); | |
516 | pr->sq_skba.arr[index] = NULL; | |
517 | } | |
7a291083 JBT |
518 | |
519 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
520 | quota--; | |
18604c54 JBT |
521 | |
522 | cqe = ehea_poll_cq(send_cq); | |
523 | }; | |
7a291083 JBT |
524 | |
525 | ehea_update_feca(send_cq, cqe_counter); | |
526 | atomic_add(swqe_av, &pr->swqe_avail); | |
527 | ||
528 | spin_lock_irqsave(&pr->netif_queue, flags); | |
18604c54 | 529 | |
7a291083 JBT |
530 | if (pr->queue_stopped && (atomic_read(&pr->swqe_avail) |
531 | >= pr->swqe_refill_th)) { | |
532 | netif_wake_queue(pr->port->netdev); | |
533 | pr->queue_stopped = 0; | |
534 | } | |
535 | spin_unlock_irqrestore(&pr->netif_queue, flags); | |
536 | ||
18604c54 | 537 | return cqe; |
7a291083 JBT |
538 | } |
539 | ||
18604c54 JBT |
540 | #define EHEA_NAPI_POLL_NUM_BEFORE_IRQ 16 |
541 | ||
542 | static int ehea_poll(struct net_device *dev, int *budget) | |
7a291083 | 543 | { |
18604c54 JBT |
544 | struct ehea_port_res *pr = dev->priv; |
545 | struct ehea_cqe *cqe; | |
546 | struct ehea_cqe *cqe_skb = NULL; | |
547 | int force_irq, wqe_index; | |
548 | ||
549 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); | |
550 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
551 | ||
552 | force_irq = (pr->poll_counter > EHEA_NAPI_POLL_NUM_BEFORE_IRQ); | |
553 | ||
554 | if ((!cqe && !cqe_skb) || force_irq) { | |
555 | pr->poll_counter = 0; | |
556 | netif_rx_complete(dev); | |
557 | ehea_reset_cq_ep(pr->recv_cq); | |
558 | ehea_reset_cq_ep(pr->send_cq); | |
559 | ehea_reset_cq_n1(pr->recv_cq); | |
560 | ehea_reset_cq_n1(pr->send_cq); | |
561 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); | |
562 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
563 | ||
e542aa6b | 564 | if (!cqe && !cqe_skb) |
18604c54 JBT |
565 | return 0; |
566 | ||
e542aa6b | 567 | if (!netif_rx_reschedule(dev, dev->quota)) |
18604c54 JBT |
568 | return 0; |
569 | } | |
e542aa6b | 570 | |
18604c54 JBT |
571 | cqe = ehea_proc_rwqes(dev, pr, budget); |
572 | cqe_skb = ehea_proc_cqes(pr, 300); | |
573 | ||
574 | if (cqe || cqe_skb) | |
575 | pr->poll_counter++; | |
e542aa6b | 576 | |
18604c54 | 577 | return 1; |
7a291083 JBT |
578 | } |
579 | ||
7d12e780 | 580 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
581 | { |
582 | struct ehea_port_res *pr = param; | |
18604c54 JBT |
583 | |
584 | netif_rx_schedule(pr->d_netdev); | |
585 | ||
7a291083 JBT |
586 | return IRQ_HANDLED; |
587 | } | |
588 | ||
7d12e780 | 589 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
590 | { |
591 | struct ehea_port *port = param; | |
592 | struct ehea_eqe *eqe; | |
d2db9eea | 593 | struct ehea_qp *qp; |
7a291083 JBT |
594 | u32 qp_token; |
595 | ||
596 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 597 | |
7a291083 | 598 | while (eqe) { |
7a291083 | 599 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
bb3a6449 TK |
600 | ehea_error("QP aff_err: entry=0x%lx, token=0x%x", |
601 | eqe->entry, qp_token); | |
d2db9eea JBT |
602 | |
603 | qp = port->port_res[qp_token].qp; | |
604 | ehea_error_data(port->adapter, qp->fw_handle); | |
bb3a6449 | 605 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
606 | } |
607 | ||
d2db9eea JBT |
608 | queue_work(port->adapter->ehea_wq, &port->reset_task); |
609 | ||
7a291083 JBT |
610 | return IRQ_HANDLED; |
611 | } | |
612 | ||
613 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
614 | int logical_port) | |
615 | { | |
616 | int i; | |
617 | ||
1acf2318 | 618 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 TK |
619 | if (adapter->port[i]) |
620 | if (adapter->port[i]->logical_port_id == logical_port) | |
621 | return adapter->port[i]; | |
7a291083 JBT |
622 | return NULL; |
623 | } | |
624 | ||
625 | int ehea_sense_port_attr(struct ehea_port *port) | |
626 | { | |
627 | int ret; | |
628 | u64 hret; | |
629 | struct hcp_ehea_port_cb0 *cb0; | |
630 | ||
a1d261c5 TK |
631 | cb0 = kzalloc(PAGE_SIZE, GFP_ATOMIC); /* May be called via */ |
632 | if (!cb0) { /* ehea_neq_tasklet() */ | |
7a291083 JBT |
633 | ehea_error("no mem for cb0"); |
634 | ret = -ENOMEM; | |
635 | goto out; | |
636 | } | |
637 | ||
638 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
639 | port->logical_port_id, H_PORT_CB0, | |
640 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
641 | cb0); | |
642 | if (hret != H_SUCCESS) { | |
643 | ret = -EIO; | |
644 | goto out_free; | |
645 | } | |
646 | ||
647 | /* MAC address */ | |
648 | port->mac_addr = cb0->port_mac_addr << 16; | |
649 | ||
650 | if (!is_valid_ether_addr((u8*)&port->mac_addr)) { | |
651 | ret = -EADDRNOTAVAIL; | |
652 | goto out_free; | |
653 | } | |
654 | ||
655 | /* Port speed */ | |
656 | switch (cb0->port_speed) { | |
657 | case H_SPEED_10M_H: | |
658 | port->port_speed = EHEA_SPEED_10M; | |
659 | port->full_duplex = 0; | |
660 | break; | |
661 | case H_SPEED_10M_F: | |
662 | port->port_speed = EHEA_SPEED_10M; | |
663 | port->full_duplex = 1; | |
664 | break; | |
665 | case H_SPEED_100M_H: | |
666 | port->port_speed = EHEA_SPEED_100M; | |
667 | port->full_duplex = 0; | |
668 | break; | |
669 | case H_SPEED_100M_F: | |
670 | port->port_speed = EHEA_SPEED_100M; | |
671 | port->full_duplex = 1; | |
672 | break; | |
673 | case H_SPEED_1G_F: | |
674 | port->port_speed = EHEA_SPEED_1G; | |
675 | port->full_duplex = 1; | |
676 | break; | |
677 | case H_SPEED_10G_F: | |
678 | port->port_speed = EHEA_SPEED_10G; | |
679 | port->full_duplex = 1; | |
680 | break; | |
681 | default: | |
682 | port->port_speed = 0; | |
683 | port->full_duplex = 0; | |
684 | break; | |
685 | } | |
686 | ||
e919b593 | 687 | port->autoneg = 1; |
18604c54 | 688 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 689 | |
7a291083 | 690 | /* Number of default QPs */ |
18604c54 JBT |
691 | if (use_mcs) |
692 | port->num_def_qps = cb0->num_default_qps; | |
693 | else | |
694 | port->num_def_qps = 1; | |
7a291083 JBT |
695 | |
696 | if (!port->num_def_qps) { | |
697 | ret = -EINVAL; | |
698 | goto out_free; | |
699 | } | |
700 | ||
18604c54 JBT |
701 | port->num_tx_qps = num_tx_qps; |
702 | ||
703 | if (port->num_def_qps >= port->num_tx_qps) | |
7a291083 JBT |
704 | port->num_add_tx_qps = 0; |
705 | else | |
18604c54 | 706 | port->num_add_tx_qps = port->num_tx_qps - port->num_def_qps; |
7a291083 JBT |
707 | |
708 | ret = 0; | |
709 | out_free: | |
710 | if (ret || netif_msg_probe(port)) | |
711 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
712 | kfree(cb0); | |
713 | out: | |
714 | return ret; | |
715 | } | |
716 | ||
717 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
718 | { | |
719 | struct hcp_ehea_port_cb4 *cb4; | |
720 | u64 hret; | |
721 | int ret = 0; | |
722 | ||
a1d261c5 | 723 | cb4 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
724 | if (!cb4) { |
725 | ehea_error("no mem for cb4"); | |
726 | ret = -ENOMEM; | |
727 | goto out; | |
728 | } | |
729 | ||
730 | cb4->port_speed = port_speed; | |
731 | ||
732 | netif_carrier_off(port->netdev); | |
733 | ||
734 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
735 | port->logical_port_id, | |
736 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
737 | if (hret == H_SUCCESS) { | |
738 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
739 | ||
740 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
741 | port->logical_port_id, | |
742 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
743 | cb4); | |
744 | if (hret == H_SUCCESS) { | |
745 | switch (cb4->port_speed) { | |
746 | case H_SPEED_10M_H: | |
747 | port->port_speed = EHEA_SPEED_10M; | |
748 | port->full_duplex = 0; | |
749 | break; | |
750 | case H_SPEED_10M_F: | |
751 | port->port_speed = EHEA_SPEED_10M; | |
752 | port->full_duplex = 1; | |
753 | break; | |
754 | case H_SPEED_100M_H: | |
755 | port->port_speed = EHEA_SPEED_100M; | |
756 | port->full_duplex = 0; | |
757 | break; | |
758 | case H_SPEED_100M_F: | |
759 | port->port_speed = EHEA_SPEED_100M; | |
760 | port->full_duplex = 1; | |
761 | break; | |
762 | case H_SPEED_1G_F: | |
763 | port->port_speed = EHEA_SPEED_1G; | |
764 | port->full_duplex = 1; | |
765 | break; | |
766 | case H_SPEED_10G_F: | |
767 | port->port_speed = EHEA_SPEED_10G; | |
768 | port->full_duplex = 1; | |
769 | break; | |
770 | default: | |
771 | port->port_speed = 0; | |
772 | port->full_duplex = 0; | |
773 | break; | |
774 | } | |
775 | } else { | |
776 | ehea_error("Failed sensing port speed"); | |
777 | ret = -EIO; | |
778 | } | |
779 | } else { | |
780 | if (hret == H_AUTHORITY) { | |
7674a588 | 781 | ehea_info("Hypervisor denied setting port speed"); |
7a291083 JBT |
782 | ret = -EPERM; |
783 | } else { | |
784 | ret = -EIO; | |
785 | ehea_error("Failed setting port speed"); | |
786 | } | |
787 | } | |
788 | netif_carrier_on(port->netdev); | |
789 | kfree(cb4); | |
790 | out: | |
791 | return ret; | |
792 | } | |
793 | ||
794 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
795 | { | |
796 | int ret; | |
797 | u8 ec; | |
798 | u8 portnum; | |
799 | struct ehea_port *port; | |
800 | ||
801 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
802 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
803 | port = ehea_get_port(adapter, portnum); | |
804 | ||
805 | switch (ec) { | |
806 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
807 | ||
808 | if (!port) { | |
809 | ehea_error("unknown portnum %x", portnum); | |
810 | break; | |
811 | } | |
812 | ||
813 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
814 | if (!netif_carrier_ok(port->netdev)) { | |
1e1675cc | 815 | ret = ehea_sense_port_attr(port); |
7a291083 JBT |
816 | if (ret) { |
817 | ehea_error("failed resensing port " | |
818 | "attributes"); | |
819 | break; | |
820 | } | |
821 | ||
822 | if (netif_msg_link(port)) | |
823 | ehea_info("%s: Logical port up: %dMbps " | |
824 | "%s Duplex", | |
825 | port->netdev->name, | |
826 | port->port_speed, | |
827 | port->full_duplex == | |
828 | 1 ? "Full" : "Half"); | |
829 | ||
830 | netif_carrier_on(port->netdev); | |
831 | netif_wake_queue(port->netdev); | |
832 | } | |
833 | } else | |
834 | if (netif_carrier_ok(port->netdev)) { | |
835 | if (netif_msg_link(port)) | |
836 | ehea_info("%s: Logical port down", | |
837 | port->netdev->name); | |
838 | netif_carrier_off(port->netdev); | |
839 | netif_stop_queue(port->netdev); | |
840 | } | |
841 | ||
842 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
843 | if (netif_msg_link(port)) | |
844 | ehea_info("%s: Physical port up", | |
845 | port->netdev->name); | |
846 | } else { | |
847 | if (netif_msg_link(port)) | |
848 | ehea_info("%s: Physical port down", | |
849 | port->netdev->name); | |
850 | } | |
851 | ||
852 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
853 | ehea_info("External switch port is primary port"); | |
854 | else | |
855 | ehea_info("External switch port is backup port"); | |
856 | ||
857 | break; | |
858 | case EHEA_EC_ADAPTER_MALFUNC: | |
859 | ehea_error("Adapter malfunction"); | |
860 | break; | |
861 | case EHEA_EC_PORT_MALFUNC: | |
862 | ehea_info("Port malfunction: Device: %s", port->netdev->name); | |
863 | netif_carrier_off(port->netdev); | |
864 | netif_stop_queue(port->netdev); | |
865 | break; | |
866 | default: | |
bff0a55f | 867 | ehea_error("unknown event code %x, eqe=0x%lX", ec, eqe); |
7a291083 JBT |
868 | break; |
869 | } | |
870 | } | |
871 | ||
872 | static void ehea_neq_tasklet(unsigned long data) | |
873 | { | |
874 | struct ehea_adapter *adapter = (struct ehea_adapter*)data; | |
875 | struct ehea_eqe *eqe; | |
876 | u64 event_mask; | |
877 | ||
878 | eqe = ehea_poll_eq(adapter->neq); | |
879 | ehea_debug("eqe=%p", eqe); | |
880 | ||
881 | while (eqe) { | |
882 | ehea_debug("*eqe=%lx", eqe->entry); | |
883 | ehea_parse_eqe(adapter, eqe->entry); | |
884 | eqe = ehea_poll_eq(adapter->neq); | |
885 | ehea_debug("next eqe=%p", eqe); | |
886 | } | |
887 | ||
888 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
889 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
890 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
891 | ||
892 | ehea_h_reset_events(adapter->handle, | |
893 | adapter->neq->fw_handle, event_mask); | |
894 | } | |
895 | ||
7d12e780 | 896 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
897 | { |
898 | struct ehea_adapter *adapter = param; | |
899 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
900 | return IRQ_HANDLED; | |
901 | } | |
902 | ||
903 | ||
904 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
905 | { | |
906 | int ret; | |
907 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
908 | ||
909 | ret = ehea_init_fill_rq1(pr, init_attr->act_nr_rwqes_rq1 | |
910 | - init_attr->act_nr_rwqes_rq2 | |
911 | - init_attr->act_nr_rwqes_rq3 - 1); | |
912 | ||
913 | ret |= ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); | |
914 | ||
915 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
916 | ||
917 | return ret; | |
918 | } | |
919 | ||
920 | static int ehea_reg_interrupts(struct net_device *dev) | |
921 | { | |
922 | struct ehea_port *port = netdev_priv(dev); | |
923 | struct ehea_port_res *pr; | |
924 | int i, ret; | |
925 | ||
7a291083 JBT |
926 | |
927 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
928 | dev->name); | |
929 | ||
930 | ret = ibmebus_request_irq(NULL, port->qp_eq->attr.ist1, | |
931 | ehea_qp_aff_irq_handler, | |
38515e90 | 932 | IRQF_DISABLED, port->int_aff_name, port); |
7a291083 JBT |
933 | if (ret) { |
934 | ehea_error("failed registering irq for qp_aff_irq_handler:" | |
935 | "ist=%X", port->qp_eq->attr.ist1); | |
936 | goto out_free_qpeq; | |
937 | } | |
938 | ||
939 | if (netif_msg_ifup(port)) | |
940 | ehea_info("irq_handle 0x%X for function qp_aff_irq_handler " | |
941 | "registered", port->qp_eq->attr.ist1); | |
942 | ||
18604c54 | 943 | |
7a291083 JBT |
944 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { |
945 | pr = &port->port_res[i]; | |
946 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 JBT |
947 | "%s-queue%d", dev->name, i); |
948 | ret = ibmebus_request_irq(NULL, pr->eq->attr.ist1, | |
949 | ehea_recv_irq_handler, | |
38515e90 | 950 | IRQF_DISABLED, pr->int_send_name, |
7a291083 JBT |
951 | pr); |
952 | if (ret) { | |
18604c54 | 953 | ehea_error("failed registering irq for ehea_queue " |
7a291083 | 954 | "port_res_nr:%d, ist=%X", i, |
18604c54 | 955 | pr->eq->attr.ist1); |
7a291083 JBT |
956 | goto out_free_req; |
957 | } | |
958 | if (netif_msg_ifup(port)) | |
18604c54 JBT |
959 | ehea_info("irq_handle 0x%X for function ehea_queue_int " |
960 | "%d registered", pr->eq->attr.ist1, i); | |
7a291083 JBT |
961 | } |
962 | out: | |
963 | return ret; | |
964 | ||
18604c54 | 965 | |
7a291083 JBT |
966 | out_free_req: |
967 | while (--i >= 0) { | |
18604c54 | 968 | u32 ist = port->port_res[i].eq->attr.ist1; |
7a291083 JBT |
969 | ibmebus_free_irq(NULL, ist, &port->port_res[i]); |
970 | } | |
18604c54 | 971 | |
7a291083 JBT |
972 | out_free_qpeq: |
973 | ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port); | |
974 | i = port->num_def_qps; | |
18604c54 | 975 | |
7a291083 | 976 | goto out; |
18604c54 | 977 | |
7a291083 JBT |
978 | } |
979 | ||
980 | static void ehea_free_interrupts(struct net_device *dev) | |
981 | { | |
982 | struct ehea_port *port = netdev_priv(dev); | |
983 | struct ehea_port_res *pr; | |
984 | int i; | |
985 | ||
986 | /* send */ | |
18604c54 | 987 | |
7a291083 JBT |
988 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { |
989 | pr = &port->port_res[i]; | |
18604c54 | 990 | ibmebus_free_irq(NULL, pr->eq->attr.ist1, pr); |
7a291083 JBT |
991 | if (netif_msg_intr(port)) |
992 | ehea_info("free send irq for res %d with handle 0x%X", | |
18604c54 | 993 | i, pr->eq->attr.ist1); |
7a291083 JBT |
994 | } |
995 | ||
996 | /* associated events */ | |
997 | ibmebus_free_irq(NULL, port->qp_eq->attr.ist1, port); | |
998 | if (netif_msg_intr(port)) | |
999 | ehea_info("associated event interrupt for handle 0x%X freed", | |
1000 | port->qp_eq->attr.ist1); | |
1001 | } | |
1002 | ||
1003 | static int ehea_configure_port(struct ehea_port *port) | |
1004 | { | |
1005 | int ret, i; | |
1006 | u64 hret, mask; | |
1007 | struct hcp_ehea_port_cb0 *cb0; | |
1008 | ||
1009 | ret = -ENOMEM; | |
a1d261c5 | 1010 | cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
1011 | if (!cb0) |
1012 | goto out; | |
1013 | ||
1014 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1015 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1016 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1017 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1018 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1019 | PXLY_RC_VLAN_FILTER) | |
1020 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1021 | ||
18604c54 JBT |
1022 | for (i = 0; i < port->num_mcs; i++) |
1023 | if (use_mcs) | |
1024 | cb0->default_qpn_arr[i] = | |
1025 | port->port_res[i].qp->init_attr.qp_nr; | |
1026 | else | |
1027 | cb0->default_qpn_arr[i] = | |
1028 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1029 | |
7a291083 JBT |
1030 | if (netif_msg_ifup(port)) |
1031 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1032 | ||
1033 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1034 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1035 | ||
1036 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1037 | port->logical_port_id, | |
1038 | H_PORT_CB0, mask, cb0); | |
1039 | ret = -EIO; | |
1040 | if (hret != H_SUCCESS) | |
1041 | goto out_free; | |
1042 | ||
1043 | ret = 0; | |
1044 | ||
1045 | out_free: | |
1046 | kfree(cb0); | |
1047 | out: | |
1048 | return ret; | |
1049 | } | |
1050 | ||
e542aa6b | 1051 | int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1052 | { |
e542aa6b | 1053 | int ret; |
7a291083 JBT |
1054 | struct ehea_adapter *adapter = pr->port->adapter; |
1055 | ||
e542aa6b JBT |
1056 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1057 | if (ret) | |
7a291083 JBT |
1058 | goto out; |
1059 | ||
e542aa6b JBT |
1060 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1061 | if (ret) | |
1062 | goto out_free; | |
7a291083 JBT |
1063 | |
1064 | return 0; | |
1065 | ||
e542aa6b JBT |
1066 | out_free: |
1067 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1068 | out: |
e542aa6b | 1069 | ehea_error("Generating SMRS failed\n"); |
7a291083 JBT |
1070 | return -EIO; |
1071 | } | |
1072 | ||
e542aa6b | 1073 | int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1074 | { |
e542aa6b JBT |
1075 | if ((ehea_rem_mr(&pr->send_mr)) |
1076 | || (ehea_rem_mr(&pr->recv_mr))) | |
1077 | return -EIO; | |
1078 | else | |
1079 | return 0; | |
7a291083 JBT |
1080 | } |
1081 | ||
1082 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1083 | { | |
1084 | int arr_size = sizeof(void*) * max_q_entries; | |
1085 | ||
1086 | q_skba->arr = vmalloc(arr_size); | |
1087 | if (!q_skba->arr) | |
1088 | return -ENOMEM; | |
1089 | ||
1090 | memset(q_skba->arr, 0, arr_size); | |
1091 | ||
1092 | q_skba->len = max_q_entries; | |
1093 | q_skba->index = 0; | |
1094 | q_skba->os_skbs = 0; | |
1095 | ||
1096 | return 0; | |
1097 | } | |
1098 | ||
1099 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1100 | struct port_res_cfg *pr_cfg, int queue_token) | |
1101 | { | |
1102 | struct ehea_adapter *adapter = port->adapter; | |
1103 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1104 | struct ehea_qp_init_attr *init_attr = NULL; | |
1105 | int ret = -EIO; | |
1106 | ||
1107 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1108 | ||
1109 | pr->port = port; | |
7a291083 JBT |
1110 | spin_lock_init(&pr->xmit_lock); |
1111 | spin_lock_init(&pr->netif_queue); | |
1112 | ||
18604c54 JBT |
1113 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1114 | if (!pr->eq) { | |
1115 | ehea_error("create_eq failed (eq)"); | |
7a291083 JBT |
1116 | goto out_free; |
1117 | } | |
1118 | ||
1119 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1120 | pr->eq->fw_handle, |
7a291083 JBT |
1121 | port->logical_port_id); |
1122 | if (!pr->recv_cq) { | |
1123 | ehea_error("create_cq failed (cq_recv)"); | |
1124 | goto out_free; | |
1125 | } | |
1126 | ||
1127 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1128 | pr->eq->fw_handle, |
7a291083 JBT |
1129 | port->logical_port_id); |
1130 | if (!pr->send_cq) { | |
1131 | ehea_error("create_cq failed (cq_send)"); | |
1132 | goto out_free; | |
1133 | } | |
1134 | ||
1135 | if (netif_msg_ifup(port)) | |
1136 | ehea_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d", | |
1137 | pr->send_cq->attr.act_nr_of_cqes, | |
1138 | pr->recv_cq->attr.act_nr_of_cqes); | |
1139 | ||
1140 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1141 | if (!init_attr) { | |
1142 | ret = -ENOMEM; | |
1143 | ehea_error("no mem for ehea_qp_init_attr"); | |
1144 | goto out_free; | |
1145 | } | |
1146 | ||
1147 | init_attr->low_lat_rq1 = 1; | |
1148 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1149 | init_attr->rq_count = 3; | |
1150 | init_attr->qp_token = queue_token; | |
1151 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1152 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1153 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1154 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1155 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1156 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1157 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1158 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1159 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1160 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1161 | init_attr->port_nr = port->logical_port_id; | |
1162 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1163 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1164 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1165 | ||
1166 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1167 | if (!pr->qp) { | |
1168 | ehea_error("create_qp failed"); | |
1169 | ret = -EIO; | |
1170 | goto out_free; | |
1171 | } | |
1172 | ||
1173 | if (netif_msg_ifup(port)) | |
1174 | ehea_info("QP: qp_nr=%d\n act_nr_snd_wqe=%d\n nr_rwqe_rq1=%d\n " | |
1175 | "nr_rwqe_rq2=%d\n nr_rwqe_rq3=%d", init_attr->qp_nr, | |
1176 | init_attr->act_nr_send_wqes, | |
1177 | init_attr->act_nr_rwqes_rq1, | |
1178 | init_attr->act_nr_rwqes_rq2, | |
1179 | init_attr->act_nr_rwqes_rq3); | |
1180 | ||
1181 | ret = ehea_init_q_skba(&pr->sq_skba, init_attr->act_nr_send_wqes + 1); | |
1182 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); | |
1183 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1184 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1185 | if (ret) | |
1186 | goto out_free; | |
1187 | ||
1188 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1189 | if (ehea_gen_smrs(pr) != 0) { | |
1190 | ret = -EIO; | |
1191 | goto out_free; | |
1192 | } | |
18604c54 | 1193 | |
7a291083 JBT |
1194 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1195 | ||
1196 | kfree(init_attr); | |
18604c54 JBT |
1197 | |
1198 | pr->d_netdev = alloc_netdev(0, "", ether_setup); | |
1199 | if (!pr->d_netdev) | |
1200 | goto out_free; | |
1201 | pr->d_netdev->priv = pr; | |
1202 | pr->d_netdev->weight = 64; | |
1203 | pr->d_netdev->poll = ehea_poll; | |
1204 | set_bit(__LINK_STATE_START, &pr->d_netdev->state); | |
1205 | strcpy(pr->d_netdev->name, port->netdev->name); | |
1206 | ||
7a291083 JBT |
1207 | ret = 0; |
1208 | goto out; | |
1209 | ||
1210 | out_free: | |
1211 | kfree(init_attr); | |
1212 | vfree(pr->sq_skba.arr); | |
1213 | vfree(pr->rq1_skba.arr); | |
1214 | vfree(pr->rq2_skba.arr); | |
1215 | vfree(pr->rq3_skba.arr); | |
1216 | ehea_destroy_qp(pr->qp); | |
1217 | ehea_destroy_cq(pr->send_cq); | |
1218 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1219 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1220 | out: |
1221 | return ret; | |
1222 | } | |
1223 | ||
1224 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1225 | { | |
1226 | int ret, i; | |
1227 | ||
18604c54 JBT |
1228 | free_netdev(pr->d_netdev); |
1229 | ||
7a291083 JBT |
1230 | ret = ehea_destroy_qp(pr->qp); |
1231 | ||
1232 | if (!ret) { | |
1233 | ehea_destroy_cq(pr->send_cq); | |
1234 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1235 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1236 | |
1237 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1238 | if (pr->rq1_skba.arr[i]) | |
1239 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1240 | ||
1241 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1242 | if (pr->rq2_skba.arr[i]) | |
1243 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1244 | ||
1245 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1246 | if (pr->rq3_skba.arr[i]) | |
1247 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1248 | ||
1249 | for (i = 0; i < pr->sq_skba.len; i++) | |
1250 | if (pr->sq_skba.arr[i]) | |
1251 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1252 | ||
1253 | vfree(pr->rq1_skba.arr); | |
1254 | vfree(pr->rq2_skba.arr); | |
1255 | vfree(pr->rq3_skba.arr); | |
1256 | vfree(pr->sq_skba.arr); | |
1257 | ret = ehea_rem_smrs(pr); | |
1258 | } | |
1259 | return ret; | |
1260 | } | |
1261 | ||
1262 | /* | |
1263 | * The write_* functions store information in swqe which is used by | |
1264 | * the hardware to calculate the ip/tcp/udp checksum | |
1265 | */ | |
1266 | ||
1267 | static inline void write_ip_start_end(struct ehea_swqe *swqe, | |
1268 | const struct sk_buff *skb) | |
1269 | { | |
eddc9ec5 | 1270 | swqe->ip_start = skb_network_offset(skb); |
c9bdd4b5 | 1271 | swqe->ip_end = (u8)(swqe->ip_start + ip_hdrlen(skb) - 1); |
7a291083 JBT |
1272 | } |
1273 | ||
1274 | static inline void write_tcp_offset_end(struct ehea_swqe *swqe, | |
1275 | const struct sk_buff *skb) | |
1276 | { | |
1277 | swqe->tcp_offset = | |
1278 | (u8)(swqe->ip_end + 1 + offsetof(struct tcphdr, check)); | |
1279 | ||
1280 | swqe->tcp_end = (u16)skb->len - 1; | |
1281 | } | |
1282 | ||
1283 | static inline void write_udp_offset_end(struct ehea_swqe *swqe, | |
1284 | const struct sk_buff *skb) | |
1285 | { | |
1286 | swqe->tcp_offset = | |
1287 | (u8)(swqe->ip_end + 1 + offsetof(struct udphdr, check)); | |
1288 | ||
1289 | swqe->tcp_end = (u16)skb->len - 1; | |
1290 | } | |
1291 | ||
1292 | ||
1293 | static void write_swqe2_TSO(struct sk_buff *skb, | |
1294 | struct ehea_swqe *swqe, u32 lkey) | |
1295 | { | |
1296 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
1297 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; | |
1298 | int skb_data_size = skb->len - skb->data_len; | |
1299 | int headersize; | |
1300 | u64 tmp_addr; | |
1301 | ||
1302 | /* Packet is TCP with TSO enabled */ | |
1303 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1304 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1305 | /* copy only eth/ip/tcp headers to immediate data and | |
1306 | * the rest of skb->data to sg1entry | |
1307 | */ | |
ab6a5bb6 | 1308 | headersize = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); |
7a291083 JBT |
1309 | |
1310 | skb_data_size = skb->len - skb->data_len; | |
1311 | ||
1312 | if (skb_data_size >= headersize) { | |
1313 | /* copy immediate data */ | |
d626f62b | 1314 | skb_copy_from_linear_data(skb, imm_data, headersize); |
7a291083 JBT |
1315 | swqe->immediate_data_length = headersize; |
1316 | ||
1317 | if (skb_data_size > headersize) { | |
1318 | /* set sg1entry data */ | |
1319 | sg1entry->l_key = lkey; | |
1320 | sg1entry->len = skb_data_size - headersize; | |
1321 | ||
1322 | tmp_addr = (u64)(skb->data + headersize); | |
1323 | sg1entry->vaddr = tmp_addr; | |
1324 | swqe->descriptors++; | |
1325 | } | |
1326 | } else | |
1327 | ehea_error("cannot handle fragmented headers"); | |
1328 | } | |
1329 | ||
1330 | static void write_swqe2_nonTSO(struct sk_buff *skb, | |
1331 | struct ehea_swqe *swqe, u32 lkey) | |
1332 | { | |
1333 | int skb_data_size = skb->len - skb->data_len; | |
1334 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; | |
1335 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
1336 | u64 tmp_addr; | |
1337 | ||
1338 | /* Packet is any nonTSO type | |
1339 | * | |
1340 | * Copy as much as possible skb->data to immediate data and | |
1341 | * the rest to sg1entry | |
1342 | */ | |
1343 | if (skb_data_size >= SWQE2_MAX_IMM) { | |
1344 | /* copy immediate data */ | |
d626f62b | 1345 | skb_copy_from_linear_data(skb, imm_data, SWQE2_MAX_IMM); |
7a291083 JBT |
1346 | |
1347 | swqe->immediate_data_length = SWQE2_MAX_IMM; | |
1348 | ||
1349 | if (skb_data_size > SWQE2_MAX_IMM) { | |
1350 | /* copy sg1entry data */ | |
1351 | sg1entry->l_key = lkey; | |
1352 | sg1entry->len = skb_data_size - SWQE2_MAX_IMM; | |
1353 | tmp_addr = (u64)(skb->data + SWQE2_MAX_IMM); | |
1354 | sg1entry->vaddr = tmp_addr; | |
1355 | swqe->descriptors++; | |
1356 | } | |
1357 | } else { | |
d626f62b | 1358 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1359 | swqe->immediate_data_length = skb_data_size; |
1360 | } | |
1361 | } | |
1362 | ||
1363 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1364 | struct ehea_swqe *swqe, u32 lkey) | |
1365 | { | |
1366 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1367 | skb_frag_t *frag; | |
1368 | int nfrags, sg1entry_contains_frag_data, i; | |
1369 | u64 tmp_addr; | |
1370 | ||
1371 | nfrags = skb_shinfo(skb)->nr_frags; | |
1372 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
1373 | sg_list = (struct ehea_vsgentry*)&swqe->u.immdata_desc.sg_list; | |
1374 | swqe->descriptors = 0; | |
1375 | sg1entry_contains_frag_data = 0; | |
1376 | ||
1377 | if ((dev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size) | |
1378 | write_swqe2_TSO(skb, swqe, lkey); | |
1379 | else | |
1380 | write_swqe2_nonTSO(skb, swqe, lkey); | |
1381 | ||
1382 | /* write descriptors */ | |
1383 | if (nfrags > 0) { | |
1384 | if (swqe->descriptors == 0) { | |
1385 | /* sg1entry not yet used */ | |
1386 | frag = &skb_shinfo(skb)->frags[0]; | |
1387 | ||
1388 | /* copy sg1entry data */ | |
1389 | sg1entry->l_key = lkey; | |
1390 | sg1entry->len = frag->size; | |
1391 | tmp_addr = (u64)(page_address(frag->page) | |
1392 | + frag->page_offset); | |
1393 | sg1entry->vaddr = tmp_addr; | |
1394 | swqe->descriptors++; | |
1395 | sg1entry_contains_frag_data = 1; | |
1396 | } | |
1397 | ||
1398 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1399 | ||
1400 | frag = &skb_shinfo(skb)->frags[i]; | |
1401 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1402 | ||
1403 | sgentry->l_key = lkey; | |
1404 | sgentry->len = frag->size; | |
1405 | ||
1406 | tmp_addr = (u64)(page_address(frag->page) | |
1407 | + frag->page_offset); | |
1408 | sgentry->vaddr = tmp_addr; | |
1409 | swqe->descriptors++; | |
1410 | } | |
1411 | } | |
1412 | } | |
1413 | ||
1414 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1415 | { | |
1416 | int ret = 0; | |
1417 | u64 hret; | |
1418 | u8 reg_type; | |
1419 | ||
1420 | /* De/Register untagged packets */ | |
1421 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1422 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1423 | port->logical_port_id, | |
1424 | reg_type, port->mac_addr, 0, hcallid); | |
1425 | if (hret != H_SUCCESS) { | |
1426 | ehea_error("reg_dereg_bcmc failed (tagged)"); | |
1427 | ret = -EIO; | |
1428 | goto out_herr; | |
1429 | } | |
1430 | ||
1431 | /* De/Register VLAN packets */ | |
1432 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1433 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1434 | port->logical_port_id, | |
1435 | reg_type, port->mac_addr, 0, hcallid); | |
1436 | if (hret != H_SUCCESS) { | |
1437 | ehea_error("reg_dereg_bcmc failed (vlan)"); | |
1438 | ret = -EIO; | |
1439 | } | |
1440 | out_herr: | |
1441 | return ret; | |
1442 | } | |
1443 | ||
1444 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1445 | { | |
1446 | struct ehea_port *port = netdev_priv(dev); | |
1447 | struct sockaddr *mac_addr = sa; | |
1448 | struct hcp_ehea_port_cb0 *cb0; | |
1449 | int ret; | |
1450 | u64 hret; | |
1451 | ||
1452 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1453 | ret = -EADDRNOTAVAIL; | |
1454 | goto out; | |
1455 | } | |
1456 | ||
a1d261c5 | 1457 | cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
1458 | if (!cb0) { |
1459 | ehea_error("no mem for cb0"); | |
1460 | ret = -ENOMEM; | |
1461 | goto out; | |
1462 | } | |
1463 | ||
1464 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1465 | ||
1466 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1467 | ||
1468 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1469 | port->logical_port_id, H_PORT_CB0, | |
1470 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1471 | if (hret != H_SUCCESS) { | |
1472 | ret = -EIO; | |
1473 | goto out_free; | |
1474 | } | |
1475 | ||
1476 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1477 | ||
1478 | /* Deregister old MAC in pHYP */ | |
1479 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1480 | if (ret) | |
1481 | goto out_free; | |
1482 | ||
1483 | port->mac_addr = cb0->port_mac_addr << 16; | |
1484 | ||
1485 | /* Register new MAC in pHYP */ | |
1486 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1487 | if (ret) | |
1488 | goto out_free; | |
1489 | ||
1490 | ret = 0; | |
1491 | out_free: | |
1492 | kfree(cb0); | |
1493 | out: | |
1494 | return ret; | |
1495 | } | |
1496 | ||
1497 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1498 | { | |
7674a588 TK |
1499 | if (hret == H_AUTHORITY) |
1500 | ehea_info("Hypervisor denied %sabling promiscuous mode", | |
1501 | enable == 1 ? "en" : "dis"); | |
1502 | else | |
1503 | ehea_error("failed %sabling promiscuous mode", | |
1504 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1505 | } |
1506 | ||
1507 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1508 | { | |
1509 | struct ehea_port *port = netdev_priv(dev); | |
1510 | struct hcp_ehea_port_cb7 *cb7; | |
1511 | u64 hret; | |
1512 | ||
1513 | if ((enable && port->promisc) || (!enable && !port->promisc)) | |
1514 | return; | |
1515 | ||
a1d261c5 | 1516 | cb7 = kzalloc(PAGE_SIZE, GFP_ATOMIC); |
7a291083 JBT |
1517 | if (!cb7) { |
1518 | ehea_error("no mem for cb7"); | |
1519 | goto out; | |
1520 | } | |
1521 | ||
1522 | /* Modify Pxs_DUCQPN in CB7 */ | |
1523 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1524 | ||
1525 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1526 | port->logical_port_id, | |
1527 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1528 | if (hret) { | |
1529 | ehea_promiscuous_error(hret, enable); | |
1530 | goto out; | |
1531 | } | |
1532 | ||
1533 | port->promisc = enable; | |
1534 | out: | |
1535 | kfree(cb7); | |
1536 | return; | |
1537 | } | |
1538 | ||
1539 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1540 | u32 hcallid) | |
1541 | { | |
1542 | u64 hret; | |
1543 | u8 reg_type; | |
1544 | ||
1545 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1546 | | EHEA_BCMC_UNTAGGED; | |
1547 | ||
1548 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1549 | port->logical_port_id, | |
1550 | reg_type, mc_mac_addr, 0, hcallid); | |
1551 | if (hret) | |
1552 | goto out; | |
1553 | ||
1554 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1555 | | EHEA_BCMC_VLANID_ALL; | |
1556 | ||
1557 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1558 | port->logical_port_id, | |
1559 | reg_type, mc_mac_addr, 0, hcallid); | |
1560 | out: | |
1561 | return hret; | |
1562 | } | |
1563 | ||
1564 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1565 | { | |
1566 | struct ehea_port *port = netdev_priv(dev); | |
1567 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1568 | struct list_head *pos; | |
1569 | struct list_head *temp; | |
1570 | int ret = 0; | |
1571 | u64 hret; | |
1572 | ||
1573 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1574 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1575 | ||
1576 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1577 | H_DEREG_BCMC); | |
1578 | if (hret) { | |
1579 | ehea_error("failed deregistering mcast MAC"); | |
1580 | ret = -EIO; | |
1581 | } | |
1582 | ||
1583 | list_del(pos); | |
1584 | kfree(mc_entry); | |
1585 | } | |
1586 | return ret; | |
1587 | } | |
1588 | ||
1589 | static void ehea_allmulti(struct net_device *dev, int enable) | |
1590 | { | |
1591 | struct ehea_port *port = netdev_priv(dev); | |
1592 | u64 hret; | |
1593 | ||
1594 | if (!port->allmulti) { | |
1595 | if (enable) { | |
1596 | /* Enable ALLMULTI */ | |
1597 | ehea_drop_multicast_list(dev); | |
1598 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
1599 | if (!hret) | |
1600 | port->allmulti = 1; | |
1601 | else | |
1602 | ehea_error("failed enabling IFF_ALLMULTI"); | |
1603 | } | |
1604 | } else | |
1605 | if (!enable) { | |
1606 | /* Disable ALLMULTI */ | |
1607 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
1608 | if (!hret) | |
1609 | port->allmulti = 0; | |
1610 | else | |
1611 | ehea_error("failed disabling IFF_ALLMULTI"); | |
1612 | } | |
1613 | } | |
1614 | ||
1615 | static void ehea_add_multicast_entry(struct ehea_port* port, u8* mc_mac_addr) | |
1616 | { | |
1617 | struct ehea_mc_list *ehea_mcl_entry; | |
1618 | u64 hret; | |
1619 | ||
1e1675cc | 1620 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
7a291083 JBT |
1621 | if (!ehea_mcl_entry) { |
1622 | ehea_error("no mem for mcl_entry"); | |
1623 | return; | |
1624 | } | |
1625 | ||
1626 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
1627 | ||
1628 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
1629 | ||
1630 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
1631 | H_REG_BCMC); | |
1632 | if (!hret) | |
1633 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
1634 | else { | |
1635 | ehea_error("failed registering mcast MAC"); | |
1636 | kfree(ehea_mcl_entry); | |
1637 | } | |
1638 | } | |
1639 | ||
1640 | static void ehea_set_multicast_list(struct net_device *dev) | |
1641 | { | |
1642 | struct ehea_port *port = netdev_priv(dev); | |
1643 | struct dev_mc_list *k_mcl_entry; | |
1644 | int ret, i; | |
1645 | ||
1646 | if (dev->flags & IFF_PROMISC) { | |
1647 | ehea_promiscuous(dev, 1); | |
1648 | return; | |
1649 | } | |
1650 | ehea_promiscuous(dev, 0); | |
1651 | ||
1652 | if (dev->flags & IFF_ALLMULTI) { | |
1653 | ehea_allmulti(dev, 1); | |
1654 | return; | |
1655 | } | |
1656 | ehea_allmulti(dev, 0); | |
1657 | ||
1658 | if (dev->mc_count) { | |
1659 | ret = ehea_drop_multicast_list(dev); | |
1660 | if (ret) { | |
1661 | /* Dropping the current multicast list failed. | |
1662 | * Enabling ALL_MULTI is the best we can do. | |
1663 | */ | |
1664 | ehea_allmulti(dev, 1); | |
1665 | } | |
1666 | ||
1667 | if (dev->mc_count > port->adapter->max_mc_mac) { | |
1668 | ehea_info("Mcast registration limit reached (0x%lx). " | |
1669 | "Use ALLMULTI!", | |
1670 | port->adapter->max_mc_mac); | |
1671 | goto out; | |
1672 | } | |
1673 | ||
1674 | for (i = 0, k_mcl_entry = dev->mc_list; | |
1675 | i < dev->mc_count; | |
1676 | i++, k_mcl_entry = k_mcl_entry->next) { | |
1677 | ehea_add_multicast_entry(port, k_mcl_entry->dmi_addr); | |
1678 | } | |
1679 | } | |
1680 | out: | |
1681 | return; | |
1682 | } | |
1683 | ||
1684 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
1685 | { | |
1686 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
1687 | return -EINVAL; | |
1688 | dev->mtu = new_mtu; | |
1689 | return 0; | |
1690 | } | |
1691 | ||
1692 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
1693 | struct ehea_swqe *swqe, u32 lkey) | |
1694 | { | |
1695 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 1696 | const struct iphdr *iph = ip_hdr(skb); |
7a291083 JBT |
1697 | /* IPv4 */ |
1698 | swqe->tx_control |= EHEA_SWQE_CRC | |
1699 | | EHEA_SWQE_IP_CHECKSUM | |
1700 | | EHEA_SWQE_TCP_CHECKSUM | |
1701 | | EHEA_SWQE_IMM_DATA_PRESENT | |
1702 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
1703 | ||
1704 | write_ip_start_end(swqe, skb); | |
1705 | ||
eddc9ec5 ACM |
1706 | if (iph->protocol == IPPROTO_UDP) { |
1707 | if ((iph->frag_off & IP_MF) || | |
1708 | (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
1709 | /* IP fragment, so don't change cs */ |
1710 | swqe->tx_control &= ~EHEA_SWQE_TCP_CHECKSUM; | |
1711 | else | |
1712 | write_udp_offset_end(swqe, skb); | |
1713 | ||
eddc9ec5 | 1714 | } else if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
1715 | write_tcp_offset_end(swqe, skb); |
1716 | } | |
1717 | ||
1718 | /* icmp (big data) and ip segmentation packets (all other ip | |
1719 | packets) do not require any special handling */ | |
1720 | ||
1721 | } else { | |
1722 | /* Other Ethernet Protocol */ | |
1723 | swqe->tx_control |= EHEA_SWQE_CRC | |
1724 | | EHEA_SWQE_IMM_DATA_PRESENT | |
1725 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
1726 | } | |
1727 | ||
1728 | write_swqe2_data(skb, dev, swqe, lkey); | |
1729 | } | |
1730 | ||
1731 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
1732 | struct ehea_swqe *swqe) | |
1733 | { | |
1734 | int nfrags = skb_shinfo(skb)->nr_frags; | |
1735 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; | |
1736 | skb_frag_t *frag; | |
1737 | int i; | |
1738 | ||
1739 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 1740 | const struct iphdr *iph = ip_hdr(skb); |
7a291083 JBT |
1741 | /* IPv4 */ |
1742 | write_ip_start_end(swqe, skb); | |
1743 | ||
eddc9ec5 | 1744 | if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
1745 | swqe->tx_control |= EHEA_SWQE_CRC |
1746 | | EHEA_SWQE_IP_CHECKSUM | |
1747 | | EHEA_SWQE_TCP_CHECKSUM | |
1748 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
1749 | ||
1750 | write_tcp_offset_end(swqe, skb); | |
1751 | ||
eddc9ec5 ACM |
1752 | } else if (iph->protocol == IPPROTO_UDP) { |
1753 | if ((iph->frag_off & IP_MF) || | |
1754 | (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
1755 | /* IP fragment, so don't change cs */ |
1756 | swqe->tx_control |= EHEA_SWQE_CRC | |
1757 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
1758 | else { | |
1759 | swqe->tx_control |= EHEA_SWQE_CRC | |
1760 | | EHEA_SWQE_IP_CHECKSUM | |
1761 | | EHEA_SWQE_TCP_CHECKSUM | |
1762 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
1763 | ||
1764 | write_udp_offset_end(swqe, skb); | |
1765 | } | |
1766 | } else { | |
1767 | /* icmp (big data) and | |
1768 | ip segmentation packets (all other ip packets) */ | |
1769 | swqe->tx_control |= EHEA_SWQE_CRC | |
1770 | | EHEA_SWQE_IP_CHECKSUM | |
1771 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
1772 | } | |
1773 | } else { | |
1774 | /* Other Ethernet Protocol */ | |
1775 | swqe->tx_control |= EHEA_SWQE_CRC | EHEA_SWQE_IMM_DATA_PRESENT; | |
1776 | } | |
1777 | /* copy (immediate) data */ | |
1778 | if (nfrags == 0) { | |
1779 | /* data is in a single piece */ | |
d626f62b | 1780 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
7a291083 JBT |
1781 | } else { |
1782 | /* first copy data from the skb->data buffer ... */ | |
d626f62b ACM |
1783 | skb_copy_from_linear_data(skb, imm_data, |
1784 | skb->len - skb->data_len); | |
7a291083 JBT |
1785 | imm_data += skb->len - skb->data_len; |
1786 | ||
1787 | /* ... then copy data from the fragments */ | |
1788 | for (i = 0; i < nfrags; i++) { | |
1789 | frag = &skb_shinfo(skb)->frags[i]; | |
1790 | memcpy(imm_data, | |
1791 | page_address(frag->page) + frag->page_offset, | |
1792 | frag->size); | |
1793 | imm_data += frag->size; | |
1794 | } | |
1795 | } | |
1796 | swqe->immediate_data_length = skb->len; | |
1797 | dev_kfree_skb(skb); | |
1798 | } | |
1799 | ||
18604c54 JBT |
1800 | static inline int ehea_hash_skb(struct sk_buff *skb, int num_qps) |
1801 | { | |
1802 | struct tcphdr *tcp; | |
1803 | u32 tmp; | |
1804 | ||
1805 | if ((skb->protocol == htons(ETH_P_IP)) && | |
1806 | (skb->nh.iph->protocol == IPPROTO_TCP)) { | |
1807 | tcp = (struct tcphdr*)(skb->nh.raw + (skb->nh.iph->ihl * 4)); | |
1808 | tmp = (tcp->source + (tcp->dest << 16)) % 31; | |
1809 | tmp += skb->nh.iph->daddr % 31; | |
1810 | return tmp % num_qps; | |
1811 | } | |
1812 | else | |
1813 | return 0; | |
1814 | } | |
1815 | ||
7a291083 JBT |
1816 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) |
1817 | { | |
1818 | struct ehea_port *port = netdev_priv(dev); | |
1819 | struct ehea_swqe *swqe; | |
1820 | unsigned long flags; | |
1821 | u32 lkey; | |
1822 | int swqe_index; | |
18604c54 JBT |
1823 | struct ehea_port_res *pr; |
1824 | ||
1825 | pr = &port->port_res[ehea_hash_skb(skb, port->num_tx_qps)]; | |
1826 | ||
18604c54 JBT |
1827 | if (!spin_trylock(&pr->xmit_lock)) |
1828 | return NETDEV_TX_BUSY; | |
1829 | ||
1830 | if (pr->queue_stopped) { | |
1831 | spin_unlock(&pr->xmit_lock); | |
1832 | return NETDEV_TX_BUSY; | |
1833 | } | |
7a291083 JBT |
1834 | |
1835 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
1836 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
1837 | atomic_dec(&pr->swqe_avail); | |
1838 | ||
1839 | if (skb->len <= SWQE3_MAX_IMM) { | |
1840 | u32 sig_iv = port->sig_comp_iv; | |
1841 | u32 swqe_num = pr->swqe_id_counter; | |
1842 | ehea_xmit3(skb, dev, swqe); | |
1843 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
1844 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
1845 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
1846 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
1847 | sig_iv); | |
1848 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
1849 | pr->swqe_ll_count = 0; | |
1850 | } else | |
1851 | pr->swqe_ll_count += 1; | |
1852 | } else { | |
1853 | swqe->wr_id = | |
1854 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
1855 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 1856 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
1857 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
1858 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
1859 | ||
1860 | pr->sq_skba.index++; | |
1861 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
1862 | ||
1863 | lkey = pr->send_mr.lkey; | |
1864 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 1865 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
1866 | } |
1867 | pr->swqe_id_counter += 1; | |
1868 | ||
1869 | if (port->vgrp && vlan_tx_tag_present(skb)) { | |
1870 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; | |
1871 | swqe->vlan_tag = vlan_tx_tag_get(skb); | |
1872 | } | |
1873 | ||
1874 | if (netif_msg_tx_queued(port)) { | |
1875 | ehea_info("post swqe on QP %d", pr->qp->init_attr.qp_nr); | |
bff0a55f | 1876 | ehea_dump(swqe, 512, "swqe"); |
7a291083 JBT |
1877 | } |
1878 | ||
1879 | ehea_post_swqe(pr->qp, swqe); | |
1880 | pr->tx_packets++; | |
1881 | ||
1882 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
1883 | spin_lock_irqsave(&pr->netif_queue, flags); | |
1884 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
acbddb59 | 1885 | pr->p_stats.queue_stopped++; |
7a291083 JBT |
1886 | netif_stop_queue(dev); |
1887 | pr->queue_stopped = 1; | |
1888 | } | |
1889 | spin_unlock_irqrestore(&pr->netif_queue, flags); | |
1890 | } | |
1891 | dev->trans_start = jiffies; | |
1892 | spin_unlock(&pr->xmit_lock); | |
1893 | ||
1894 | return NETDEV_TX_OK; | |
1895 | } | |
1896 | ||
1897 | static void ehea_vlan_rx_register(struct net_device *dev, | |
1898 | struct vlan_group *grp) | |
1899 | { | |
1900 | struct ehea_port *port = netdev_priv(dev); | |
1901 | struct ehea_adapter *adapter = port->adapter; | |
1902 | struct hcp_ehea_port_cb1 *cb1; | |
1903 | u64 hret; | |
1904 | ||
1905 | port->vgrp = grp; | |
1906 | ||
a1d261c5 | 1907 | cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
1908 | if (!cb1) { |
1909 | ehea_error("no mem for cb1"); | |
1910 | goto out; | |
1911 | } | |
1912 | ||
1913 | if (grp) | |
1914 | memset(cb1->vlan_filter, 0, sizeof(cb1->vlan_filter)); | |
1915 | else | |
1916 | memset(cb1->vlan_filter, 0xFF, sizeof(cb1->vlan_filter)); | |
1917 | ||
1918 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
1919 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
1920 | if (hret != H_SUCCESS) | |
1921 | ehea_error("modify_ehea_port failed"); | |
1922 | ||
1923 | kfree(cb1); | |
1924 | out: | |
1925 | return; | |
1926 | } | |
1927 | ||
1928 | static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
1929 | { | |
1930 | struct ehea_port *port = netdev_priv(dev); | |
1931 | struct ehea_adapter *adapter = port->adapter; | |
1932 | struct hcp_ehea_port_cb1 *cb1; | |
1933 | int index; | |
1934 | u64 hret; | |
1935 | ||
a1d261c5 | 1936 | cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
1937 | if (!cb1) { |
1938 | ehea_error("no mem for cb1"); | |
1939 | goto out; | |
1940 | } | |
1941 | ||
1942 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
1943 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
1944 | if (hret != H_SUCCESS) { | |
1945 | ehea_error("query_ehea_port failed"); | |
1946 | goto out; | |
1947 | } | |
1948 | ||
1949 | index = (vid / 64); | |
1950 | cb1->vlan_filter[index] |= ((u64)(1 << (vid & 0x3F))); | |
1951 | ||
1952 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
1953 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
1954 | if (hret != H_SUCCESS) | |
1955 | ehea_error("modify_ehea_port failed"); | |
1956 | out: | |
1957 | kfree(cb1); | |
1958 | return; | |
1959 | } | |
1960 | ||
1961 | static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
1962 | { | |
1963 | struct ehea_port *port = netdev_priv(dev); | |
1964 | struct ehea_adapter *adapter = port->adapter; | |
1965 | struct hcp_ehea_port_cb1 *cb1; | |
1966 | int index; | |
1967 | u64 hret; | |
1968 | ||
5c15bdec | 1969 | vlan_group_set_device(port->vgrp, vid, NULL); |
7a291083 | 1970 | |
a1d261c5 | 1971 | cb1 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
1972 | if (!cb1) { |
1973 | ehea_error("no mem for cb1"); | |
1974 | goto out; | |
1975 | } | |
1976 | ||
1977 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
1978 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
1979 | if (hret != H_SUCCESS) { | |
1980 | ehea_error("query_ehea_port failed"); | |
1981 | goto out; | |
1982 | } | |
1983 | ||
1984 | index = (vid / 64); | |
1985 | cb1->vlan_filter[index] &= ~((u64)(1 << (vid & 0x3F))); | |
1986 | ||
1987 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
1988 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
1989 | if (hret != H_SUCCESS) | |
1990 | ehea_error("modify_ehea_port failed"); | |
1991 | out: | |
1992 | kfree(cb1); | |
1993 | return; | |
1994 | } | |
1995 | ||
1996 | int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) | |
1997 | { | |
1998 | int ret = -EIO; | |
1999 | u64 hret; | |
2000 | u16 dummy16 = 0; | |
2001 | u64 dummy64 = 0; | |
2002 | struct hcp_modify_qp_cb0* cb0; | |
2003 | ||
a1d261c5 | 2004 | cb0 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
2005 | if (!cb0) { |
2006 | ret = -ENOMEM; | |
2007 | goto out; | |
2008 | } | |
2009 | ||
2010 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2011 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2012 | if (hret != H_SUCCESS) { | |
2013 | ehea_error("query_ehea_qp failed (1)"); | |
2014 | goto out; | |
2015 | } | |
2016 | ||
2017 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2018 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2019 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2020 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2021 | if (hret != H_SUCCESS) { | |
2022 | ehea_error("modify_ehea_qp failed (1)"); | |
2023 | goto out; | |
2024 | } | |
2025 | ||
2026 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2027 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2028 | if (hret != H_SUCCESS) { | |
2029 | ehea_error("query_ehea_qp failed (2)"); | |
2030 | goto out; | |
2031 | } | |
2032 | ||
2033 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2034 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2035 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2036 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2037 | if (hret != H_SUCCESS) { | |
2038 | ehea_error("modify_ehea_qp failed (2)"); | |
2039 | goto out; | |
2040 | } | |
2041 | ||
2042 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2043 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2044 | if (hret != H_SUCCESS) { | |
2045 | ehea_error("query_ehea_qp failed (3)"); | |
2046 | goto out; | |
2047 | } | |
2048 | ||
2049 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2050 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2051 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2052 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2053 | if (hret != H_SUCCESS) { | |
2054 | ehea_error("modify_ehea_qp failed (3)"); | |
2055 | goto out; | |
2056 | } | |
2057 | ||
2058 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2059 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2060 | if (hret != H_SUCCESS) { | |
2061 | ehea_error("query_ehea_qp failed (4)"); | |
2062 | goto out; | |
2063 | } | |
2064 | ||
2065 | ret = 0; | |
2066 | out: | |
2067 | kfree(cb0); | |
2068 | return ret; | |
2069 | } | |
2070 | ||
2071 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps, | |
2072 | int add_tx_qps) | |
2073 | { | |
2074 | int ret, i; | |
2075 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2076 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2077 | ||
2078 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2079 | EHEA_MAX_ENTRIES_EQ, 1); | |
2080 | if (!port->qp_eq) { | |
2081 | ret = -EINVAL; | |
2082 | ehea_error("ehea_create_eq failed (qp_eq)"); | |
2083 | goto out_kill_eq; | |
2084 | } | |
2085 | ||
2086 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2087 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2088 | pr_cfg.max_entries_sq = sq_entries; |
2089 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2090 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2091 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2092 | ||
2093 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2094 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2095 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2096 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2097 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2098 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2099 | ||
2100 | for (i = 0; i < def_qps; i++) { | |
2101 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2102 | if (ret) | |
2103 | goto out_clean_pr; | |
2104 | } | |
2105 | for (i = def_qps; i < def_qps + add_tx_qps; i++) { | |
2106 | ret = ehea_init_port_res(port, &port->port_res[i], | |
2107 | &pr_cfg_small_rx, i); | |
2108 | if (ret) | |
2109 | goto out_clean_pr; | |
2110 | } | |
2111 | ||
2112 | return 0; | |
2113 | ||
2114 | out_clean_pr: | |
2115 | while (--i >= 0) | |
2116 | ehea_clean_portres(port, &port->port_res[i]); | |
2117 | ||
2118 | out_kill_eq: | |
2119 | ehea_destroy_eq(port->qp_eq); | |
2120 | return ret; | |
2121 | } | |
2122 | ||
2123 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2124 | { | |
2125 | int ret = 0; | |
2126 | int i; | |
2127 | ||
2128 | for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) | |
2129 | ret |= ehea_clean_portres(port, &port->port_res[i]); | |
2130 | ||
2131 | ret |= ehea_destroy_eq(port->qp_eq); | |
2132 | ||
2133 | return ret; | |
2134 | } | |
2135 | ||
2136 | static int ehea_up(struct net_device *dev) | |
2137 | { | |
2138 | int ret, i; | |
2139 | struct ehea_port *port = netdev_priv(dev); | |
2140 | u64 mac_addr = 0; | |
2141 | ||
2142 | if (port->state == EHEA_PORT_UP) | |
2143 | return 0; | |
2144 | ||
2145 | ret = ehea_port_res_setup(port, port->num_def_qps, | |
2146 | port->num_add_tx_qps); | |
2147 | if (ret) { | |
2148 | ehea_error("port_res_failed"); | |
2149 | goto out; | |
2150 | } | |
2151 | ||
2152 | /* Set default QP for this port */ | |
2153 | ret = ehea_configure_port(port); | |
2154 | if (ret) { | |
2155 | ehea_error("ehea_configure_port failed. ret:%d", ret); | |
2156 | goto out_clean_pr; | |
2157 | } | |
2158 | ||
2159 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
2160 | if (ret) { | |
2161 | ret = -EIO; | |
2162 | ehea_error("out_clean_pr"); | |
2163 | goto out_clean_pr; | |
2164 | } | |
2165 | mac_addr = (*(u64*)dev->dev_addr) >> 16; | |
2166 | ||
2167 | ret = ehea_reg_interrupts(dev); | |
2168 | if (ret) { | |
2169 | ehea_error("out_dereg_bc"); | |
2170 | goto out_dereg_bc; | |
2171 | } | |
2172 | ||
2173 | for(i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { | |
2174 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); | |
2175 | if (ret) { | |
2176 | ehea_error("activate_qp failed"); | |
2177 | goto out_free_irqs; | |
2178 | } | |
2179 | } | |
2180 | ||
2181 | for(i = 0; i < port->num_def_qps; i++) { | |
2182 | ret = ehea_fill_port_res(&port->port_res[i]); | |
2183 | if (ret) { | |
2184 | ehea_error("out_free_irqs"); | |
2185 | goto out_free_irqs; | |
2186 | } | |
2187 | } | |
2188 | ||
2189 | ret = 0; | |
2190 | port->state = EHEA_PORT_UP; | |
2191 | goto out; | |
2192 | ||
2193 | out_free_irqs: | |
2194 | ehea_free_interrupts(dev); | |
2195 | ||
2196 | out_dereg_bc: | |
2197 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
2198 | ||
2199 | out_clean_pr: | |
2200 | ehea_clean_all_portres(port); | |
2201 | out: | |
2202 | return ret; | |
2203 | } | |
2204 | ||
2205 | static int ehea_open(struct net_device *dev) | |
2206 | { | |
2207 | int ret; | |
2208 | struct ehea_port *port = netdev_priv(dev); | |
2209 | ||
2210 | down(&port->port_lock); | |
2211 | ||
2212 | if (netif_msg_ifup(port)) | |
2213 | ehea_info("enabling port %s", dev->name); | |
2214 | ||
2215 | ret = ehea_up(dev); | |
2216 | if (!ret) | |
2217 | netif_start_queue(dev); | |
2218 | ||
2219 | up(&port->port_lock); | |
2220 | ||
2221 | return ret; | |
2222 | } | |
2223 | ||
2224 | static int ehea_down(struct net_device *dev) | |
2225 | { | |
2226 | int ret, i; | |
2227 | struct ehea_port *port = netdev_priv(dev); | |
2228 | ||
2229 | if (port->state == EHEA_PORT_DOWN) | |
2230 | return 0; | |
2231 | ||
2232 | ehea_drop_multicast_list(dev); | |
2233 | ehea_free_interrupts(dev); | |
2234 | ||
18604c54 | 2235 | for (i = 0; i < port->num_def_qps; i++) |
e542aa6b | 2236 | while (test_bit(__LINK_STATE_RX_SCHED, |
18604c54 JBT |
2237 | &port->port_res[i].d_netdev->state)) |
2238 | msleep(1); | |
7a291083 JBT |
2239 | |
2240 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
2241 | ret = ehea_clean_all_portres(port); | |
2242 | port->state = EHEA_PORT_DOWN; | |
2243 | return ret; | |
2244 | } | |
2245 | ||
2246 | static int ehea_stop(struct net_device *dev) | |
2247 | { | |
2248 | int ret; | |
2249 | struct ehea_port *port = netdev_priv(dev); | |
2250 | ||
2251 | if (netif_msg_ifdown(port)) | |
2252 | ehea_info("disabling port %s", dev->name); | |
2253 | ||
2254 | flush_workqueue(port->adapter->ehea_wq); | |
2255 | down(&port->port_lock); | |
2256 | netif_stop_queue(dev); | |
2257 | ret = ehea_down(dev); | |
2258 | up(&port->port_lock); | |
2259 | return ret; | |
2260 | } | |
2261 | ||
c4028958 | 2262 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2263 | { |
2264 | int ret; | |
c4028958 DH |
2265 | struct ehea_port *port = |
2266 | container_of(work, struct ehea_port, reset_task); | |
2267 | struct net_device *dev = port->netdev; | |
7a291083 JBT |
2268 | |
2269 | port->resets++; | |
2270 | down(&port->port_lock); | |
2271 | netif_stop_queue(dev); | |
2272 | netif_poll_disable(dev); | |
2273 | ||
2274 | ret = ehea_down(dev); | |
2275 | if (ret) | |
2276 | ehea_error("ehea_down failed. not all resources are freed"); | |
2277 | ||
2278 | ret = ehea_up(dev); | |
2279 | if (ret) { | |
2280 | ehea_error("Reset device %s failed: ret=%d", dev->name, ret); | |
2281 | goto out; | |
2282 | } | |
2283 | ||
2284 | if (netif_msg_timer(port)) | |
2285 | ehea_info("Device %s resetted successfully", dev->name); | |
2286 | ||
2287 | netif_poll_enable(dev); | |
2288 | netif_wake_queue(dev); | |
2289 | out: | |
2290 | up(&port->port_lock); | |
2291 | return; | |
2292 | } | |
2293 | ||
2294 | static void ehea_tx_watchdog(struct net_device *dev) | |
2295 | { | |
2296 | struct ehea_port *port = netdev_priv(dev); | |
2297 | ||
2298 | if (netif_carrier_ok(dev)) | |
2299 | queue_work(port->adapter->ehea_wq, &port->reset_task); | |
2300 | } | |
2301 | ||
2302 | int ehea_sense_adapter_attr(struct ehea_adapter *adapter) | |
2303 | { | |
2304 | struct hcp_query_ehea *cb; | |
2305 | u64 hret; | |
2306 | int ret; | |
2307 | ||
a1d261c5 | 2308 | cb = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
2309 | if (!cb) { |
2310 | ret = -ENOMEM; | |
2311 | goto out; | |
2312 | } | |
2313 | ||
2314 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
2315 | ||
2316 | if (hret != H_SUCCESS) { | |
2317 | ret = -EIO; | |
2318 | goto out_herr; | |
2319 | } | |
2320 | ||
7a291083 JBT |
2321 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
2322 | ret = 0; | |
2323 | ||
2324 | out_herr: | |
2325 | kfree(cb); | |
2326 | out: | |
2327 | return ret; | |
2328 | } | |
2329 | ||
1acf2318 | 2330 | int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 2331 | { |
7a291083 | 2332 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
2333 | u64 hret; |
2334 | int ret = 0; | |
7a291083 | 2335 | |
1acf2318 | 2336 | *jumbo = 0; |
7a291083 | 2337 | |
1acf2318 | 2338 | /* (Try to) enable *jumbo frames */ |
a1d261c5 | 2339 | cb4 = kzalloc(PAGE_SIZE, GFP_KERNEL); |
7a291083 JBT |
2340 | if (!cb4) { |
2341 | ehea_error("no mem for cb4"); | |
1acf2318 JBT |
2342 | ret = -ENOMEM; |
2343 | goto out; | |
7a291083 | 2344 | } else { |
1acf2318 | 2345 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
2346 | port->logical_port_id, |
2347 | H_PORT_CB4, | |
2348 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
2349 | if (hret == H_SUCCESS) { |
2350 | if (cb4->jumbo_frame) | |
1acf2318 | 2351 | *jumbo = 1; |
9c750b7d TK |
2352 | else { |
2353 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
2354 | hret = ehea_h_modify_ehea_port(port->adapter-> |
2355 | handle, | |
9c750b7d | 2356 | port-> |
1acf2318 | 2357 | logical_port_id, |
9c750b7d TK |
2358 | H_PORT_CB4, |
2359 | H_PORT_CB4_JUMBO, | |
2360 | cb4); | |
2361 | if (hret == H_SUCCESS) | |
1acf2318 | 2362 | *jumbo = 1; |
9c750b7d | 2363 | } |
1acf2318 JBT |
2364 | } else |
2365 | ret = -EINVAL; | |
2366 | ||
7a291083 JBT |
2367 | kfree(cb4); |
2368 | } | |
1acf2318 JBT |
2369 | out: |
2370 | return ret; | |
2371 | } | |
2372 | ||
2373 | static ssize_t ehea_show_port_id(struct device *dev, | |
2374 | struct device_attribute *attr, char *buf) | |
2375 | { | |
2376 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
2377 | return sprintf(buf, "0x%X", port->logical_port_id); | |
2378 | } | |
2379 | ||
2380 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
2381 | NULL); | |
2382 | ||
2383 | static void __devinit logical_port_release(struct device *dev) | |
2384 | { | |
2385 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
2386 | of_node_put(port->ofdev.node); | |
2387 | } | |
2388 | ||
d1dea38d TK |
2389 | static int ehea_driver_sysfs_add(struct device *dev, |
2390 | struct device_driver *driver) | |
2391 | { | |
2392 | int ret; | |
2393 | ||
2394 | ret = sysfs_create_link(&driver->kobj, &dev->kobj, | |
2395 | kobject_name(&dev->kobj)); | |
2396 | if (ret == 0) { | |
2397 | ret = sysfs_create_link(&dev->kobj, &driver->kobj, | |
2398 | "driver"); | |
2399 | if (ret) | |
2400 | sysfs_remove_link(&driver->kobj, | |
2401 | kobject_name(&dev->kobj)); | |
2402 | } | |
2403 | return ret; | |
2404 | } | |
2405 | ||
2406 | static void ehea_driver_sysfs_remove(struct device *dev, | |
2407 | struct device_driver *driver) | |
2408 | { | |
2409 | struct device_driver *drv = driver; | |
2410 | ||
2411 | if (drv) { | |
2412 | sysfs_remove_link(&drv->kobj, kobject_name(&dev->kobj)); | |
2413 | sysfs_remove_link(&dev->kobj, "driver"); | |
2414 | } | |
2415 | } | |
2416 | ||
1acf2318 JBT |
2417 | static struct device *ehea_register_port(struct ehea_port *port, |
2418 | struct device_node *dn) | |
2419 | { | |
2420 | int ret; | |
2421 | ||
2422 | port->ofdev.node = of_node_get(dn); | |
2423 | port->ofdev.dev.parent = &port->adapter->ebus_dev->ofdev.dev; | |
d1dea38d | 2424 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 2425 | |
d1dea38d | 2426 | sprintf(port->ofdev.dev.bus_id, "port%d", port_name_cnt++); |
1acf2318 JBT |
2427 | port->ofdev.dev.release = logical_port_release; |
2428 | ||
2429 | ret = of_device_register(&port->ofdev); | |
2430 | if (ret) { | |
2431 | ehea_error("failed to register device. ret=%d", ret); | |
2432 | goto out; | |
2433 | } | |
2434 | ||
2435 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
2436 | if (ret) { | |
2437 | ehea_error("failed to register attributes, ret=%d", ret); | |
2438 | goto out_unreg_of_dev; | |
2439 | } | |
e542aa6b | 2440 | |
d1dea38d TK |
2441 | ret = ehea_driver_sysfs_add(&port->ofdev.dev, &ehea_driver.driver); |
2442 | if (ret) { | |
2443 | ehea_error("failed to register sysfs driver link"); | |
2444 | goto out_rem_dev_file; | |
2445 | } | |
2446 | ||
1acf2318 JBT |
2447 | return &port->ofdev.dev; |
2448 | ||
d1dea38d TK |
2449 | out_rem_dev_file: |
2450 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
1acf2318 JBT |
2451 | out_unreg_of_dev: |
2452 | of_device_unregister(&port->ofdev); | |
2453 | out: | |
2454 | return NULL; | |
2455 | } | |
2456 | ||
2457 | static void ehea_unregister_port(struct ehea_port *port) | |
2458 | { | |
d1dea38d | 2459 | ehea_driver_sysfs_remove(&port->ofdev.dev, &ehea_driver.driver); |
1acf2318 JBT |
2460 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); |
2461 | of_device_unregister(&port->ofdev); | |
2462 | } | |
2463 | ||
2464 | struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, | |
2465 | u32 logical_port_id, | |
2466 | struct device_node *dn) | |
2467 | { | |
2468 | int ret; | |
2469 | struct net_device *dev; | |
2470 | struct ehea_port *port; | |
2471 | struct device *port_dev; | |
2472 | int jumbo; | |
2473 | ||
2474 | /* allocate memory for the port structures */ | |
2475 | dev = alloc_etherdev(sizeof(struct ehea_port)); | |
2476 | ||
2477 | if (!dev) { | |
2478 | ehea_error("no mem for net_device"); | |
2479 | ret = -ENOMEM; | |
2480 | goto out_err; | |
2481 | } | |
2482 | ||
2483 | port = netdev_priv(dev); | |
2484 | ||
2485 | sema_init(&port->port_lock, 1); | |
2486 | port->state = EHEA_PORT_DOWN; | |
2487 | port->sig_comp_iv = sq_entries / 10; | |
2488 | ||
2489 | port->adapter = adapter; | |
2490 | port->netdev = dev; | |
2491 | port->logical_port_id = logical_port_id; | |
2492 | ||
2493 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
2494 | ||
2495 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
2496 | if (!port->mc_list) { | |
2497 | ret = -ENOMEM; | |
2498 | goto out_free_ethdev; | |
2499 | } | |
2500 | ||
2501 | INIT_LIST_HEAD(&port->mc_list->list); | |
2502 | ||
2503 | ret = ehea_sense_port_attr(port); | |
2504 | if (ret) | |
2505 | goto out_free_mc_list; | |
2506 | ||
2507 | port_dev = ehea_register_port(port, dn); | |
2508 | if (!port_dev) | |
2509 | goto out_free_mc_list; | |
2510 | ||
2511 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
2512 | |
2513 | /* initialize net_device structure */ | |
2514 | SET_MODULE_OWNER(dev); | |
2515 | ||
2516 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); | |
2517 | ||
2518 | dev->open = ehea_open; | |
2519 | dev->poll = ehea_poll; | |
2520 | dev->weight = 64; | |
2521 | dev->stop = ehea_stop; | |
2522 | dev->hard_start_xmit = ehea_start_xmit; | |
2523 | dev->get_stats = ehea_get_stats; | |
2524 | dev->set_multicast_list = ehea_set_multicast_list; | |
2525 | dev->set_mac_address = ehea_set_mac_addr; | |
2526 | dev->change_mtu = ehea_change_mtu; | |
2527 | dev->vlan_rx_register = ehea_vlan_rx_register; | |
2528 | dev->vlan_rx_add_vid = ehea_vlan_rx_add_vid; | |
2529 | dev->vlan_rx_kill_vid = ehea_vlan_rx_kill_vid; | |
2530 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO | |
2531 | | NETIF_F_HIGHDMA | NETIF_F_HW_CSUM | NETIF_F_HW_VLAN_TX | |
2532 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER | |
2533 | | NETIF_F_LLTX; | |
2534 | dev->tx_timeout = &ehea_tx_watchdog; | |
2535 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; | |
2536 | ||
c4028958 | 2537 | INIT_WORK(&port->reset_task, ehea_reset_port); |
7a291083 JBT |
2538 | |
2539 | ehea_set_ethtool_ops(dev); | |
2540 | ||
2541 | ret = register_netdev(dev); | |
2542 | if (ret) { | |
2543 | ehea_error("register_netdev failed. ret=%d", ret); | |
1acf2318 | 2544 | goto out_unreg_port; |
7a291083 JBT |
2545 | } |
2546 | ||
1acf2318 | 2547 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 2548 | if (ret) |
1acf2318 JBT |
2549 | ehea_error("failed determining jumbo frame status for %s", |
2550 | port->netdev->name); | |
2551 | ||
9c750b7d TK |
2552 | ehea_info("%s: Jumbo frames are %sabled", dev->name, |
2553 | jumbo == 1 ? "en" : "dis"); | |
2554 | ||
1acf2318 | 2555 | return port; |
7a291083 | 2556 | |
1acf2318 JBT |
2557 | out_unreg_port: |
2558 | ehea_unregister_port(port); | |
2559 | ||
2560 | out_free_mc_list: | |
7a291083 | 2561 | kfree(port->mc_list); |
1acf2318 JBT |
2562 | |
2563 | out_free_ethdev: | |
2564 | free_netdev(dev); | |
2565 | ||
2566 | out_err: | |
2567 | ehea_error("setting up logical port with id=%d failed, ret=%d", | |
2568 | logical_port_id, ret); | |
2569 | return NULL; | |
2570 | } | |
2571 | ||
2572 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
2573 | { | |
2574 | unregister_netdev(port->netdev); | |
2575 | ehea_unregister_port(port); | |
2576 | kfree(port->mc_list); | |
2577 | free_netdev(port->netdev); | |
7a291083 JBT |
2578 | } |
2579 | ||
2580 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
2581 | { | |
1acf2318 JBT |
2582 | struct device_node *lhea_dn; |
2583 | struct device_node *eth_dn = NULL; | |
2584 | ||
2585 | u32 *dn_log_port_id; | |
7a291083 | 2586 | int port_setup_ok = 0; |
1acf2318 JBT |
2587 | int i = 0; |
2588 | ||
2589 | lhea_dn = adapter->ebus_dev->ofdev.node; | |
1eef4e04 | 2590 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 2591 | |
1acf2318 JBT |
2592 | dn_log_port_id = (u32*)get_property(eth_dn, "ibm,hea-port-no", |
2593 | NULL); | |
2594 | if (!dn_log_port_id) { | |
2595 | ehea_error("bad device node: eth_dn name=%s", | |
2596 | eth_dn->full_name); | |
2597 | continue; | |
2598 | } | |
7a291083 | 2599 | |
1acf2318 JBT |
2600 | adapter->port[i] = ehea_setup_single_port(adapter, |
2601 | *dn_log_port_id, | |
2602 | eth_dn); | |
7a291083 | 2603 | if (adapter->port[i]) |
1acf2318 | 2604 | ehea_info("%s -> logical port id #%d", |
e542aa6b | 2605 | adapter->port[i]->netdev->name, |
1acf2318 JBT |
2606 | *dn_log_port_id); |
2607 | i++; | |
1eef4e04 | 2608 | }; |
7a291083 | 2609 | |
1acf2318 JBT |
2610 | /* Check for succesfully set up ports */ |
2611 | for (i = 0; i < EHEA_MAX_PORTS; i++) | |
2612 | if (adapter->port[i]) | |
2613 | port_setup_ok++; | |
7a291083 | 2614 | |
1acf2318 JBT |
2615 | if (port_setup_ok) |
2616 | return 0; /* At least some ports are setup correctly */ | |
2617 | ||
2618 | return -EINVAL; | |
2619 | } | |
2620 | ||
e542aa6b JBT |
2621 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
2622 | u32 logical_port_id) | |
1acf2318 JBT |
2623 | { |
2624 | struct device_node *lhea_dn; | |
2625 | struct device_node *eth_dn = NULL; | |
2626 | u32 *dn_log_port_id; | |
2627 | ||
2628 | lhea_dn = adapter->ebus_dev->ofdev.node; | |
1eef4e04 | 2629 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 2630 | |
1acf2318 JBT |
2631 | dn_log_port_id = (u32*)get_property(eth_dn, "ibm,hea-port-no", |
2632 | NULL); | |
1acf2318 JBT |
2633 | if (dn_log_port_id) |
2634 | if (*dn_log_port_id == logical_port_id) | |
2635 | return eth_dn; | |
1eef4e04 | 2636 | }; |
1acf2318 JBT |
2637 | |
2638 | return NULL; | |
2639 | } | |
2640 | ||
2641 | static ssize_t ehea_probe_port(struct device *dev, | |
2642 | struct device_attribute *attr, | |
2643 | const char *buf, size_t count) | |
2644 | { | |
2645 | struct ehea_adapter *adapter = dev->driver_data; | |
2646 | struct ehea_port *port; | |
2647 | struct device_node *eth_dn = NULL; | |
2648 | int i; | |
2649 | ||
2650 | u32 logical_port_id; | |
2651 | ||
2652 | sscanf(buf, "%X", &logical_port_id); | |
2653 | ||
2654 | port = ehea_get_port(adapter, logical_port_id); | |
2655 | ||
2656 | if (port) { | |
2657 | ehea_info("adding port with logical port id=%d failed. port " | |
2658 | "already configured as %s.", logical_port_id, | |
2659 | port->netdev->name); | |
2660 | return -EINVAL; | |
7a291083 | 2661 | } |
e542aa6b | 2662 | |
1acf2318 | 2663 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 2664 | |
1acf2318 JBT |
2665 | if (!eth_dn) { |
2666 | ehea_info("no logical port with id %d found", logical_port_id); | |
2667 | return -EINVAL; | |
2668 | } | |
e542aa6b | 2669 | |
1acf2318 | 2670 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 2671 | |
1eef4e04 JBT |
2672 | of_node_put(eth_dn); |
2673 | ||
1acf2318 JBT |
2674 | if (port) { |
2675 | for (i=0; i < EHEA_MAX_PORTS; i++) | |
2676 | if (!adapter->port[i]) { | |
2677 | adapter->port[i] = port; | |
2678 | break; | |
2679 | } | |
7a291083 | 2680 | |
1acf2318 JBT |
2681 | ehea_info("added %s (logical port id=%d)", port->netdev->name, |
2682 | logical_port_id); | |
e542aa6b JBT |
2683 | } else |
2684 | return -EIO; | |
7a291083 | 2685 | |
1acf2318 JBT |
2686 | return (ssize_t) count; |
2687 | } | |
2688 | ||
2689 | static ssize_t ehea_remove_port(struct device *dev, | |
2690 | struct device_attribute *attr, | |
2691 | const char *buf, size_t count) | |
2692 | { | |
2693 | struct ehea_adapter *adapter = dev->driver_data; | |
2694 | struct ehea_port *port; | |
2695 | int i; | |
2696 | u32 logical_port_id; | |
2697 | ||
2698 | sscanf(buf, "%X", &logical_port_id); | |
2699 | ||
2700 | port = ehea_get_port(adapter, logical_port_id); | |
2701 | ||
2702 | if (port) { | |
2703 | ehea_info("removed %s (logical port id=%d)", port->netdev->name, | |
2704 | logical_port_id); | |
2705 | ||
2706 | ehea_shutdown_single_port(port); | |
2707 | ||
2708 | for (i=0; i < EHEA_MAX_PORTS; i++) | |
2709 | if (adapter->port[i] == port) { | |
2710 | adapter->port[i] = NULL; | |
2711 | break; | |
2712 | } | |
2713 | } else { | |
2714 | ehea_error("removing port with logical port id=%d failed. port " | |
2715 | "not configured.", logical_port_id); | |
2716 | return -EINVAL; | |
2717 | } | |
2718 | ||
2719 | return (ssize_t) count; | |
2720 | } | |
2721 | ||
2722 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
2723 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
2724 | ||
2725 | int ehea_create_device_sysfs(struct ibmebus_dev *dev) | |
2726 | { | |
2727 | int ret = device_create_file(&dev->ofdev.dev, &dev_attr_probe_port); | |
2728 | if (ret) | |
2729 | goto out; | |
2730 | ||
2731 | ret = device_create_file(&dev->ofdev.dev, &dev_attr_remove_port); | |
2732 | out: | |
7a291083 JBT |
2733 | return ret; |
2734 | } | |
2735 | ||
1acf2318 JBT |
2736 | void ehea_remove_device_sysfs(struct ibmebus_dev *dev) |
2737 | { | |
2738 | device_remove_file(&dev->ofdev.dev, &dev_attr_probe_port); | |
2739 | device_remove_file(&dev->ofdev.dev, &dev_attr_remove_port); | |
2740 | } | |
2741 | ||
2742 | static int __devinit ehea_probe_adapter(struct ibmebus_dev *dev, | |
2743 | const struct of_device_id *id) | |
7a291083 JBT |
2744 | { |
2745 | struct ehea_adapter *adapter; | |
2746 | u64 *adapter_handle; | |
2747 | int ret; | |
2748 | ||
1eef4e04 JBT |
2749 | if (!dev || !dev->ofdev.node) { |
2750 | ehea_error("Invalid ibmebus device probed"); | |
2751 | return -EINVAL; | |
2752 | } | |
2753 | ||
7a291083 JBT |
2754 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
2755 | if (!adapter) { | |
2756 | ret = -ENOMEM; | |
2757 | dev_err(&dev->ofdev.dev, "no mem for ehea_adapter\n"); | |
2758 | goto out; | |
2759 | } | |
2760 | ||
1acf2318 JBT |
2761 | adapter->ebus_dev = dev; |
2762 | ||
7a291083 JBT |
2763 | adapter_handle = (u64*)get_property(dev->ofdev.node, "ibm,hea-handle", |
2764 | NULL); | |
061bf3cd TK |
2765 | if (adapter_handle) |
2766 | adapter->handle = *adapter_handle; | |
2767 | ||
2768 | if (!adapter->handle) { | |
7a291083 JBT |
2769 | dev_err(&dev->ofdev.dev, "failed getting handle for adapter" |
2770 | " '%s'\n", dev->ofdev.node->full_name); | |
2771 | ret = -ENODEV; | |
2772 | goto out_free_ad; | |
2773 | } | |
2774 | ||
7a291083 JBT |
2775 | adapter->pd = EHEA_PD_ID; |
2776 | ||
2777 | dev->ofdev.dev.driver_data = adapter; | |
2778 | ||
e542aa6b | 2779 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); |
7a291083 JBT |
2780 | if (ret) { |
2781 | dev_err(&dev->ofdev.dev, "reg_mr_adapter failed\n"); | |
2782 | goto out_free_ad; | |
2783 | } | |
2784 | ||
2785 | /* initialize adapter and ports */ | |
2786 | /* get adapter properties */ | |
2787 | ret = ehea_sense_adapter_attr(adapter); | |
2788 | if (ret) { | |
2789 | dev_err(&dev->ofdev.dev, "sense_adapter_attr failed: %d", ret); | |
2790 | goto out_free_res; | |
2791 | } | |
7a291083 JBT |
2792 | |
2793 | adapter->neq = ehea_create_eq(adapter, | |
2794 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
2795 | if (!adapter->neq) { | |
1eef4e04 | 2796 | ret = -EIO; |
7a291083 JBT |
2797 | dev_err(&dev->ofdev.dev, "NEQ creation failed"); |
2798 | goto out_free_res; | |
2799 | } | |
2800 | ||
2801 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
2802 | (unsigned long)adapter); | |
2803 | ||
2804 | ret = ibmebus_request_irq(NULL, adapter->neq->attr.ist1, | |
38515e90 | 2805 | ehea_interrupt_neq, IRQF_DISABLED, |
7a291083 JBT |
2806 | "ehea_neq", adapter); |
2807 | if (ret) { | |
2808 | dev_err(&dev->ofdev.dev, "requesting NEQ IRQ failed"); | |
2809 | goto out_kill_eq; | |
2810 | } | |
2811 | ||
2812 | adapter->ehea_wq = create_workqueue("ehea_wq"); | |
1eef4e04 JBT |
2813 | if (!adapter->ehea_wq) { |
2814 | ret = -EIO; | |
7a291083 | 2815 | goto out_free_irq; |
1eef4e04 | 2816 | } |
7a291083 | 2817 | |
1eef4e04 JBT |
2818 | ret = ehea_create_device_sysfs(dev); |
2819 | if (ret) | |
1acf2318 JBT |
2820 | goto out_kill_wq; |
2821 | ||
7a291083 JBT |
2822 | ret = ehea_setup_ports(adapter); |
2823 | if (ret) { | |
2824 | dev_err(&dev->ofdev.dev, "setup_ports failed"); | |
1acf2318 | 2825 | goto out_rem_dev_sysfs; |
7a291083 JBT |
2826 | } |
2827 | ||
2828 | ret = 0; | |
2829 | goto out; | |
2830 | ||
1acf2318 JBT |
2831 | out_rem_dev_sysfs: |
2832 | ehea_remove_device_sysfs(dev); | |
2833 | ||
7a291083 JBT |
2834 | out_kill_wq: |
2835 | destroy_workqueue(adapter->ehea_wq); | |
2836 | ||
2837 | out_free_irq: | |
2838 | ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter); | |
2839 | ||
2840 | out_kill_eq: | |
2841 | ehea_destroy_eq(adapter->neq); | |
2842 | ||
2843 | out_free_res: | |
e542aa6b | 2844 | ehea_rem_mr(&adapter->mr); |
7a291083 JBT |
2845 | |
2846 | out_free_ad: | |
2847 | kfree(adapter); | |
2848 | out: | |
2849 | return ret; | |
2850 | } | |
2851 | ||
7a291083 JBT |
2852 | static int __devexit ehea_remove(struct ibmebus_dev *dev) |
2853 | { | |
2854 | struct ehea_adapter *adapter = dev->ofdev.dev.driver_data; | |
7a291083 JBT |
2855 | int i; |
2856 | ||
1acf2318 | 2857 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
7a291083 JBT |
2858 | if (adapter->port[i]) { |
2859 | ehea_shutdown_single_port(adapter->port[i]); | |
2860 | adapter->port[i] = NULL; | |
2861 | } | |
1acf2318 JBT |
2862 | |
2863 | ehea_remove_device_sysfs(dev); | |
2864 | ||
7a291083 JBT |
2865 | destroy_workqueue(adapter->ehea_wq); |
2866 | ||
2867 | ibmebus_free_irq(NULL, adapter->neq->attr.ist1, adapter); | |
d4150a27 | 2868 | tasklet_kill(&adapter->neq_tasklet); |
7a291083 JBT |
2869 | |
2870 | ehea_destroy_eq(adapter->neq); | |
e542aa6b | 2871 | ehea_rem_mr(&adapter->mr); |
7a291083 JBT |
2872 | kfree(adapter); |
2873 | return 0; | |
2874 | } | |
2875 | ||
2876 | static int check_module_parm(void) | |
2877 | { | |
2878 | int ret = 0; | |
2879 | ||
2880 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
2881 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
2882 | ehea_info("Bad parameter: rq1_entries"); | |
2883 | ret = -EINVAL; | |
2884 | } | |
2885 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
2886 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
2887 | ehea_info("Bad parameter: rq2_entries"); | |
2888 | ret = -EINVAL; | |
2889 | } | |
2890 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
2891 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
2892 | ehea_info("Bad parameter: rq3_entries"); | |
2893 | ret = -EINVAL; | |
2894 | } | |
2895 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
2896 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
2897 | ehea_info("Bad parameter: sq_entries"); | |
2898 | ret = -EINVAL; | |
2899 | } | |
2900 | ||
2901 | return ret; | |
2902 | } | |
2903 | ||
7a291083 JBT |
2904 | int __init ehea_module_init(void) |
2905 | { | |
2906 | int ret; | |
2907 | ||
2908 | printk(KERN_INFO "IBM eHEA ethernet device driver (Release %s)\n", | |
2909 | DRV_VERSION); | |
2910 | ||
2911 | ret = check_module_parm(); | |
2912 | if (ret) | |
2913 | goto out; | |
2914 | ret = ibmebus_register_driver(&ehea_driver); | |
2915 | if (ret) | |
2916 | ehea_error("failed registering eHEA device driver on ebus"); | |
2917 | ||
2918 | out: | |
2919 | return ret; | |
2920 | } | |
2921 | ||
2922 | static void __exit ehea_module_exit(void) | |
2923 | { | |
2924 | ibmebus_unregister_driver(&ehea_driver); | |
2925 | } | |
2926 | ||
2927 | module_init(ehea_module_init); | |
2928 | module_exit(ehea_module_exit); |