Commit | Line | Data |
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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: | |
508d2b5d DM |
9 | * Christoph Raisch <raisch@de.ibm.com> |
10 | * Jan-Bernd Themann <themann@de.ibm.com> | |
11 | * Thomas Klein <tklein@de.ibm.com> | |
7a291083 JBT |
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> | |
2a6f4e49 JBT |
36 | #include <linux/notifier.h> |
37 | #include <linux/reboot.h> | |
48cfb14f | 38 | #include <linux/memory.h> |
21eee2dd | 39 | #include <asm/kexec.h> |
06f89edf | 40 | #include <linux/mutex.h> |
2a6f4e49 | 41 | |
7a291083 JBT |
42 | #include <net/ip.h> |
43 | ||
44 | #include "ehea.h" | |
45 | #include "ehea_qmr.h" | |
46 | #include "ehea_phyp.h" | |
47 | ||
48 | ||
49 | MODULE_LICENSE("GPL"); | |
50 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
51 | MODULE_DESCRIPTION("IBM eServer HEA Driver"); | |
52 | MODULE_VERSION(DRV_VERSION); | |
53 | ||
54 | ||
55 | static int msg_level = -1; | |
56 | static int rq1_entries = EHEA_DEF_ENTRIES_RQ1; | |
57 | static int rq2_entries = EHEA_DEF_ENTRIES_RQ2; | |
58 | static int rq3_entries = EHEA_DEF_ENTRIES_RQ3; | |
59 | static int sq_entries = EHEA_DEF_ENTRIES_SQ; | |
508d2b5d DM |
60 | static int use_mcs; |
61 | static int use_lro; | |
d4dc4ec9 | 62 | static int lro_max_aggr = EHEA_LRO_MAX_AGGR; |
18604c54 | 63 | static int num_tx_qps = EHEA_NUM_TX_QP; |
508d2b5d | 64 | static int prop_carrier_state; |
7a291083 JBT |
65 | |
66 | module_param(msg_level, int, 0); | |
67 | module_param(rq1_entries, int, 0); | |
68 | module_param(rq2_entries, int, 0); | |
69 | module_param(rq3_entries, int, 0); | |
70 | module_param(sq_entries, int, 0); | |
8759cf76 | 71 | module_param(prop_carrier_state, int, 0); |
18604c54 | 72 | module_param(use_mcs, int, 0); |
d4dc4ec9 JBT |
73 | module_param(use_lro, int, 0); |
74 | module_param(lro_max_aggr, int, 0); | |
18604c54 | 75 | module_param(num_tx_qps, int, 0); |
7a291083 | 76 | |
18604c54 | 77 | MODULE_PARM_DESC(num_tx_qps, "Number of TX-QPS"); |
7a291083 | 78 | MODULE_PARM_DESC(msg_level, "msg_level"); |
8759cf76 JBT |
79 | MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical " |
80 | "port to stack. 1:yes, 0:no. Default = 0 "); | |
7a291083 JBT |
81 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " |
82 | "[2^x - 1], x = [6..14]. Default = " | |
83 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); | |
84 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
85 | "[2^x - 1], x = [6..14]. Default = " | |
86 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); | |
87 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
88 | "[2^x - 1], x = [6..14]. Default = " | |
89 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); | |
90 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
91 | "[2^x - 1], x = [6..14]. Default = " | |
92 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); | |
18072a5b | 93 | MODULE_PARM_DESC(use_mcs, " 0:NAPI, 1:Multiple receive queues, Default = 0 "); |
7a291083 | 94 | |
d4dc4ec9 JBT |
95 | MODULE_PARM_DESC(lro_max_aggr, " LRO: Max packets to be aggregated. Default = " |
96 | __MODULE_STRING(EHEA_LRO_MAX_AGGR)); | |
97 | MODULE_PARM_DESC(use_lro, " Large Receive Offload, 1: enable, 0: disable, " | |
98 | "Default = 0"); | |
99 | ||
508d2b5d | 100 | static int port_name_cnt; |
44c82152 | 101 | static LIST_HEAD(adapter_list); |
48e4cc77 | 102 | static unsigned long ehea_driver_flags; |
44c82152 | 103 | struct work_struct ehea_rereg_mr_task; |
06f89edf | 104 | static DEFINE_MUTEX(dlpar_mem_lock); |
21eee2dd TK |
105 | struct ehea_fw_handle_array ehea_fw_handles; |
106 | struct ehea_bcmc_reg_array ehea_bcmc_regs; | |
107 | ||
d1dea38d | 108 | |
6b08f3ae | 109 | static int __devinit ehea_probe_adapter(struct of_device *dev, |
d1d25aab | 110 | const struct of_device_id *id); |
d1dea38d | 111 | |
6b08f3ae | 112 | static int __devexit ehea_remove(struct of_device *dev); |
d1dea38d TK |
113 | |
114 | static struct of_device_id ehea_device_table[] = { | |
115 | { | |
116 | .name = "lhea", | |
117 | .compatible = "IBM,lhea", | |
118 | }, | |
119 | {}, | |
120 | }; | |
b0afffe8 | 121 | MODULE_DEVICE_TABLE(of, ehea_device_table); |
d1dea38d | 122 | |
6b08f3ae | 123 | static struct of_platform_driver ehea_driver = { |
d1dea38d | 124 | .name = "ehea", |
6b08f3ae | 125 | .match_table = ehea_device_table, |
d1dea38d TK |
126 | .probe = ehea_probe_adapter, |
127 | .remove = ehea_remove, | |
128 | }; | |
129 | ||
508d2b5d DM |
130 | void ehea_dump(void *adr, int len, char *msg) |
131 | { | |
7a291083 JBT |
132 | int x; |
133 | unsigned char *deb = adr; | |
134 | for (x = 0; x < len; x += 16) { | |
a1c5a893 | 135 | printk(DRV_NAME " %s adr=%p ofs=%04x %016llx %016llx\n", msg, |
508d2b5d | 136 | deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8])); |
7a291083 JBT |
137 | deb += 16; |
138 | } | |
139 | } | |
140 | ||
2f69ae01 JBT |
141 | void ehea_schedule_port_reset(struct ehea_port *port) |
142 | { | |
143 | if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) | |
144 | schedule_work(&port->reset_task); | |
145 | } | |
146 | ||
21eee2dd TK |
147 | static void ehea_update_firmware_handles(void) |
148 | { | |
149 | struct ehea_fw_handle_entry *arr = NULL; | |
150 | struct ehea_adapter *adapter; | |
151 | int num_adapters = 0; | |
152 | int num_ports = 0; | |
153 | int num_portres = 0; | |
154 | int i = 0; | |
155 | int num_fw_handles, k, l; | |
156 | ||
157 | /* Determine number of handles */ | |
52e21b1b JBT |
158 | mutex_lock(&ehea_fw_handles.lock); |
159 | ||
21eee2dd TK |
160 | list_for_each_entry(adapter, &adapter_list, list) { |
161 | num_adapters++; | |
162 | ||
163 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
164 | struct ehea_port *port = adapter->port[k]; | |
165 | ||
166 | if (!port || (port->state != EHEA_PORT_UP)) | |
167 | continue; | |
168 | ||
169 | num_ports++; | |
170 | num_portres += port->num_def_qps + port->num_add_tx_qps; | |
171 | } | |
172 | } | |
173 | ||
174 | num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES + | |
175 | num_ports * EHEA_NUM_PORT_FW_HANDLES + | |
176 | num_portres * EHEA_NUM_PORTRES_FW_HANDLES; | |
177 | ||
178 | if (num_fw_handles) { | |
179 | arr = kzalloc(num_fw_handles * sizeof(*arr), GFP_KERNEL); | |
180 | if (!arr) | |
52e21b1b | 181 | goto out; /* Keep the existing array */ |
21eee2dd TK |
182 | } else |
183 | goto out_update; | |
184 | ||
185 | list_for_each_entry(adapter, &adapter_list, list) { | |
52e21b1b JBT |
186 | if (num_adapters == 0) |
187 | break; | |
188 | ||
21eee2dd TK |
189 | for (k = 0; k < EHEA_MAX_PORTS; k++) { |
190 | struct ehea_port *port = adapter->port[k]; | |
191 | ||
52e21b1b JBT |
192 | if (!port || (port->state != EHEA_PORT_UP) |
193 | || (num_ports == 0)) | |
21eee2dd TK |
194 | continue; |
195 | ||
196 | for (l = 0; | |
197 | l < port->num_def_qps + port->num_add_tx_qps; | |
198 | l++) { | |
199 | struct ehea_port_res *pr = &port->port_res[l]; | |
200 | ||
201 | arr[i].adh = adapter->handle; | |
202 | arr[i++].fwh = pr->qp->fw_handle; | |
203 | arr[i].adh = adapter->handle; | |
204 | arr[i++].fwh = pr->send_cq->fw_handle; | |
205 | arr[i].adh = adapter->handle; | |
206 | arr[i++].fwh = pr->recv_cq->fw_handle; | |
207 | arr[i].adh = adapter->handle; | |
208 | arr[i++].fwh = pr->eq->fw_handle; | |
209 | arr[i].adh = adapter->handle; | |
210 | arr[i++].fwh = pr->send_mr.handle; | |
211 | arr[i].adh = adapter->handle; | |
212 | arr[i++].fwh = pr->recv_mr.handle; | |
213 | } | |
214 | arr[i].adh = adapter->handle; | |
215 | arr[i++].fwh = port->qp_eq->fw_handle; | |
52e21b1b | 216 | num_ports--; |
21eee2dd TK |
217 | } |
218 | ||
219 | arr[i].adh = adapter->handle; | |
220 | arr[i++].fwh = adapter->neq->fw_handle; | |
221 | ||
222 | if (adapter->mr.handle) { | |
223 | arr[i].adh = adapter->handle; | |
224 | arr[i++].fwh = adapter->mr.handle; | |
225 | } | |
52e21b1b | 226 | num_adapters--; |
21eee2dd TK |
227 | } |
228 | ||
229 | out_update: | |
230 | kfree(ehea_fw_handles.arr); | |
231 | ehea_fw_handles.arr = arr; | |
232 | ehea_fw_handles.num_entries = i; | |
52e21b1b JBT |
233 | out: |
234 | mutex_unlock(&ehea_fw_handles.lock); | |
21eee2dd TK |
235 | } |
236 | ||
237 | static void ehea_update_bcmc_registrations(void) | |
238 | { | |
52e21b1b | 239 | unsigned long flags; |
21eee2dd TK |
240 | struct ehea_bcmc_reg_entry *arr = NULL; |
241 | struct ehea_adapter *adapter; | |
242 | struct ehea_mc_list *mc_entry; | |
243 | int num_registrations = 0; | |
244 | int i = 0; | |
245 | int k; | |
246 | ||
52e21b1b JBT |
247 | spin_lock_irqsave(&ehea_bcmc_regs.lock, flags); |
248 | ||
21eee2dd TK |
249 | /* Determine number of registrations */ |
250 | list_for_each_entry(adapter, &adapter_list, list) | |
251 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
252 | struct ehea_port *port = adapter->port[k]; | |
253 | ||
254 | if (!port || (port->state != EHEA_PORT_UP)) | |
255 | continue; | |
256 | ||
257 | num_registrations += 2; /* Broadcast registrations */ | |
258 | ||
259 | list_for_each_entry(mc_entry, &port->mc_list->list,list) | |
260 | num_registrations += 2; | |
261 | } | |
262 | ||
263 | if (num_registrations) { | |
5c2cec14 | 264 | arr = kzalloc(num_registrations * sizeof(*arr), GFP_ATOMIC); |
21eee2dd | 265 | if (!arr) |
52e21b1b | 266 | goto out; /* Keep the existing array */ |
21eee2dd TK |
267 | } else |
268 | goto out_update; | |
269 | ||
270 | list_for_each_entry(adapter, &adapter_list, list) { | |
271 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
272 | struct ehea_port *port = adapter->port[k]; | |
273 | ||
274 | if (!port || (port->state != EHEA_PORT_UP)) | |
275 | continue; | |
276 | ||
52e21b1b JBT |
277 | if (num_registrations == 0) |
278 | goto out_update; | |
279 | ||
21eee2dd TK |
280 | arr[i].adh = adapter->handle; |
281 | arr[i].port_id = port->logical_port_id; | |
282 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
283 | EHEA_BCMC_UNTAGGED; | |
284 | arr[i++].macaddr = port->mac_addr; | |
285 | ||
286 | arr[i].adh = adapter->handle; | |
287 | arr[i].port_id = port->logical_port_id; | |
288 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
289 | EHEA_BCMC_VLANID_ALL; | |
290 | arr[i++].macaddr = port->mac_addr; | |
52e21b1b | 291 | num_registrations -= 2; |
21eee2dd TK |
292 | |
293 | list_for_each_entry(mc_entry, | |
294 | &port->mc_list->list, list) { | |
52e21b1b JBT |
295 | if (num_registrations == 0) |
296 | goto out_update; | |
297 | ||
21eee2dd TK |
298 | arr[i].adh = adapter->handle; |
299 | arr[i].port_id = port->logical_port_id; | |
300 | arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | | |
301 | EHEA_BCMC_MULTICAST | | |
302 | EHEA_BCMC_UNTAGGED; | |
303 | arr[i++].macaddr = mc_entry->macaddr; | |
304 | ||
305 | arr[i].adh = adapter->handle; | |
306 | arr[i].port_id = port->logical_port_id; | |
307 | arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | | |
308 | EHEA_BCMC_MULTICAST | | |
309 | EHEA_BCMC_VLANID_ALL; | |
310 | arr[i++].macaddr = mc_entry->macaddr; | |
52e21b1b | 311 | num_registrations -= 2; |
21eee2dd TK |
312 | } |
313 | } | |
314 | } | |
315 | ||
316 | out_update: | |
317 | kfree(ehea_bcmc_regs.arr); | |
318 | ehea_bcmc_regs.arr = arr; | |
319 | ehea_bcmc_regs.num_entries = i; | |
52e21b1b JBT |
320 | out: |
321 | spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags); | |
21eee2dd TK |
322 | } |
323 | ||
7a291083 JBT |
324 | static struct net_device_stats *ehea_get_stats(struct net_device *dev) |
325 | { | |
326 | struct ehea_port *port = netdev_priv(dev); | |
327 | struct net_device_stats *stats = &port->stats; | |
328 | struct hcp_ehea_port_cb2 *cb2; | |
7393b87c | 329 | u64 hret, rx_packets, tx_packets; |
7a291083 JBT |
330 | int i; |
331 | ||
332 | memset(stats, 0, sizeof(*stats)); | |
333 | ||
3faf2693 | 334 | cb2 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 JBT |
335 | if (!cb2) { |
336 | ehea_error("no mem for cb2"); | |
337 | goto out; | |
338 | } | |
339 | ||
340 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
341 | port->logical_port_id, | |
342 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
343 | if (hret != H_SUCCESS) { | |
344 | ehea_error("query_ehea_port failed"); | |
345 | goto out_herr; | |
346 | } | |
347 | ||
348 | if (netif_msg_hw(port)) | |
349 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
350 | ||
351 | rx_packets = 0; | |
352 | for (i = 0; i < port->num_def_qps; i++) | |
353 | rx_packets += port->port_res[i].rx_packets; | |
354 | ||
7393b87c TK |
355 | tx_packets = 0; |
356 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) | |
357 | tx_packets += port->port_res[i].tx_packets; | |
358 | ||
359 | stats->tx_packets = tx_packets; | |
7a291083 JBT |
360 | stats->multicast = cb2->rxmcp; |
361 | stats->rx_errors = cb2->rxuerr; | |
362 | stats->rx_bytes = cb2->rxo; | |
363 | stats->tx_bytes = cb2->txo; | |
364 | stats->rx_packets = rx_packets; | |
365 | ||
366 | out_herr: | |
3faf2693 | 367 | free_page((unsigned long)cb2); |
7a291083 JBT |
368 | out: |
369 | return stats; | |
370 | } | |
371 | ||
372 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
373 | { | |
374 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
375 | struct net_device *dev = pr->port->netdev; | |
376 | int max_index_mask = pr->rq1_skba.len - 1; | |
2c69448b JBT |
377 | int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes; |
378 | int adder = 0; | |
7a291083 JBT |
379 | int i; |
380 | ||
2c69448b JBT |
381 | pr->rq1_skba.os_skbs = 0; |
382 | ||
383 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { | |
44fb3126 TK |
384 | if (nr_of_wqes > 0) |
385 | pr->rq1_skba.index = index; | |
2c69448b | 386 | pr->rq1_skba.os_skbs = fill_wqes; |
7a291083 | 387 | return; |
2c69448b | 388 | } |
7a291083 | 389 | |
2c69448b | 390 | for (i = 0; i < fill_wqes; i++) { |
7a291083 JBT |
391 | if (!skb_arr_rq1[index]) { |
392 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
393 | EHEA_L_PKT_SIZE); | |
394 | if (!skb_arr_rq1[index]) { | |
2c69448b | 395 | pr->rq1_skba.os_skbs = fill_wqes - i; |
7a291083 JBT |
396 | break; |
397 | } | |
398 | } | |
399 | index--; | |
400 | index &= max_index_mask; | |
2c69448b | 401 | adder++; |
7a291083 | 402 | } |
2c69448b JBT |
403 | |
404 | if (adder == 0) | |
405 | return; | |
406 | ||
7a291083 | 407 | /* Ring doorbell */ |
2c69448b | 408 | ehea_update_rq1a(pr->qp, adder); |
7a291083 JBT |
409 | } |
410 | ||
e2878806 | 411 | static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) |
7a291083 | 412 | { |
7a291083 JBT |
413 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; |
414 | struct net_device *dev = pr->port->netdev; | |
415 | int i; | |
416 | ||
417 | for (i = 0; i < pr->rq1_skba.len; i++) { | |
418 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); | |
e2878806 TK |
419 | if (!skb_arr_rq1[i]) |
420 | break; | |
7a291083 JBT |
421 | } |
422 | /* Ring doorbell */ | |
423 | ehea_update_rq1a(pr->qp, nr_rq1a); | |
7a291083 JBT |
424 | } |
425 | ||
426 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
427 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
428 | int num_wqes, int wqe_type, int packet_size) | |
429 | { | |
430 | struct net_device *dev = pr->port->netdev; | |
431 | struct ehea_qp *qp = pr->qp; | |
432 | struct sk_buff **skb_arr = q_skba->arr; | |
433 | struct ehea_rwqe *rwqe; | |
434 | int i, index, max_index_mask, fill_wqes; | |
2c69448b | 435 | int adder = 0; |
7a291083 JBT |
436 | int ret = 0; |
437 | ||
438 | fill_wqes = q_skba->os_skbs + num_wqes; | |
2c69448b | 439 | q_skba->os_skbs = 0; |
7a291083 | 440 | |
2c69448b JBT |
441 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
442 | q_skba->os_skbs = fill_wqes; | |
7a291083 | 443 | return ret; |
2c69448b | 444 | } |
7a291083 JBT |
445 | |
446 | index = q_skba->index; | |
447 | max_index_mask = q_skba->len - 1; | |
448 | for (i = 0; i < fill_wqes; i++) { | |
2c69448b | 449 | u64 tmp_addr; |
7a291083 JBT |
450 | struct sk_buff *skb = netdev_alloc_skb(dev, packet_size); |
451 | if (!skb) { | |
7a291083 | 452 | q_skba->os_skbs = fill_wqes - i; |
e2878806 TK |
453 | if (q_skba->os_skbs == q_skba->len - 2) { |
454 | ehea_info("%s: rq%i ran dry - no mem for skb", | |
455 | pr->port->netdev->name, rq_nr); | |
456 | ret = -ENOMEM; | |
457 | } | |
7a291083 JBT |
458 | break; |
459 | } | |
460 | skb_reserve(skb, NET_IP_ALIGN); | |
461 | ||
462 | skb_arr[index] = skb; | |
2c69448b JBT |
463 | tmp_addr = ehea_map_vaddr(skb->data); |
464 | if (tmp_addr == -1) { | |
465 | dev_kfree_skb(skb); | |
466 | q_skba->os_skbs = fill_wqes - i; | |
467 | ret = 0; | |
468 | break; | |
469 | } | |
7a291083 JBT |
470 | |
471 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
472 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
d1d25aab | 473 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); |
7a291083 | 474 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; |
2c69448b | 475 | rwqe->sg_list[0].vaddr = tmp_addr; |
7a291083 JBT |
476 | rwqe->sg_list[0].len = packet_size; |
477 | rwqe->data_segments = 1; | |
478 | ||
479 | index++; | |
480 | index &= max_index_mask; | |
2c69448b | 481 | adder++; |
7a291083 | 482 | } |
44c82152 | 483 | |
7a291083 | 484 | q_skba->index = index; |
2c69448b JBT |
485 | if (adder == 0) |
486 | goto out; | |
7a291083 JBT |
487 | |
488 | /* Ring doorbell */ | |
489 | iosync(); | |
490 | if (rq_nr == 2) | |
2c69448b | 491 | ehea_update_rq2a(pr->qp, adder); |
7a291083 | 492 | else |
2c69448b | 493 | ehea_update_rq3a(pr->qp, adder); |
44c82152 | 494 | out: |
7a291083 JBT |
495 | return ret; |
496 | } | |
497 | ||
498 | ||
499 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
500 | { | |
501 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
502 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
503 | EHEA_RQ2_PKT_SIZE + NET_IP_ALIGN); | |
504 | } | |
505 | ||
506 | ||
507 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
508 | { | |
509 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
510 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
511 | EHEA_MAX_PACKET_SIZE + NET_IP_ALIGN); | |
512 | } | |
513 | ||
514 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
515 | { | |
516 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
517 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
518 | return 0; | |
519 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
520 | (cqe->header_length == 0)) | |
521 | return 0; | |
522 | return -EINVAL; | |
523 | } | |
524 | ||
525 | static inline void ehea_fill_skb(struct net_device *dev, | |
526 | struct sk_buff *skb, struct ehea_cqe *cqe) | |
527 | { | |
528 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
529 | ||
530 | skb_put(skb, length); | |
531 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
532 | skb->protocol = eth_type_trans(skb, dev); | |
533 | } | |
534 | ||
535 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
536 | int arr_len, | |
537 | struct ehea_cqe *cqe) | |
538 | { | |
539 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
540 | struct sk_buff *skb; | |
541 | void *pref; | |
542 | int x; | |
543 | ||
544 | x = skb_index + 1; | |
545 | x &= (arr_len - 1); | |
546 | ||
547 | pref = skb_array[x]; | |
0b2febf3 HH |
548 | if (pref) { |
549 | prefetchw(pref); | |
550 | prefetchw(pref + EHEA_CACHE_LINE); | |
551 | ||
552 | pref = (skb_array[x]->data); | |
553 | prefetch(pref); | |
554 | prefetch(pref + EHEA_CACHE_LINE); | |
555 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
556 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
557 | } | |
558 | ||
7a291083 JBT |
559 | skb = skb_array[skb_index]; |
560 | skb_array[skb_index] = NULL; | |
561 | return skb; | |
562 | } | |
563 | ||
564 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
565 | int arr_len, int wqe_index) | |
566 | { | |
567 | struct sk_buff *skb; | |
568 | void *pref; | |
569 | int x; | |
570 | ||
571 | x = wqe_index + 1; | |
572 | x &= (arr_len - 1); | |
573 | ||
574 | pref = skb_array[x]; | |
0b2febf3 HH |
575 | if (pref) { |
576 | prefetchw(pref); | |
577 | prefetchw(pref + EHEA_CACHE_LINE); | |
7a291083 | 578 | |
0b2febf3 HH |
579 | pref = (skb_array[x]->data); |
580 | prefetchw(pref); | |
581 | prefetchw(pref + EHEA_CACHE_LINE); | |
582 | } | |
7a291083 JBT |
583 | |
584 | skb = skb_array[wqe_index]; | |
585 | skb_array[wqe_index] = NULL; | |
586 | return skb; | |
587 | } | |
588 | ||
589 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
590 | struct ehea_cqe *cqe, int *processed_rq2, | |
591 | int *processed_rq3) | |
592 | { | |
593 | struct sk_buff *skb; | |
594 | ||
acbddb59 JBT |
595 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
596 | pr->p_stats.err_tcp_cksum++; | |
597 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
598 | pr->p_stats.err_ip_cksum++; | |
599 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
600 | pr->p_stats.err_frame_crc++; | |
601 | ||
7a291083 JBT |
602 | if (rq == 2) { |
603 | *processed_rq2 += 1; | |
604 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
605 | dev_kfree_skb(skb); | |
606 | } else if (rq == 3) { | |
607 | *processed_rq3 += 1; | |
608 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
609 | dev_kfree_skb(skb); | |
610 | } | |
611 | ||
612 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
58dd8258 TK |
613 | if (netif_msg_rx_err(pr->port)) { |
614 | ehea_error("Critical receive error for QP %d. " | |
615 | "Resetting port.", pr->qp->init_attr.qp_nr); | |
616 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
617 | } | |
2f69ae01 | 618 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
619 | return 1; |
620 | } | |
621 | ||
622 | return 0; | |
623 | } | |
624 | ||
d4dc4ec9 JBT |
625 | static int get_skb_hdr(struct sk_buff *skb, void **iphdr, |
626 | void **tcph, u64 *hdr_flags, void *priv) | |
627 | { | |
628 | struct ehea_cqe *cqe = priv; | |
629 | unsigned int ip_len; | |
630 | struct iphdr *iph; | |
631 | ||
632 | /* non tcp/udp packets */ | |
633 | if (!cqe->header_length) | |
634 | return -1; | |
635 | ||
636 | /* non tcp packet */ | |
637 | skb_reset_network_header(skb); | |
638 | iph = ip_hdr(skb); | |
639 | if (iph->protocol != IPPROTO_TCP) | |
640 | return -1; | |
641 | ||
642 | ip_len = ip_hdrlen(skb); | |
643 | skb_set_transport_header(skb, ip_len); | |
644 | *tcph = tcp_hdr(skb); | |
645 | ||
646 | /* check if ip header and tcp header are complete */ | |
3ff2cd23 | 647 | if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb)) |
d4dc4ec9 JBT |
648 | return -1; |
649 | ||
650 | *hdr_flags = LRO_IPV4 | LRO_TCP; | |
651 | *iphdr = iph; | |
652 | ||
653 | return 0; | |
654 | } | |
655 | ||
656 | static void ehea_proc_skb(struct ehea_port_res *pr, struct ehea_cqe *cqe, | |
657 | struct sk_buff *skb) | |
658 | { | |
659 | int vlan_extracted = (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) | |
660 | && pr->port->vgrp; | |
661 | ||
662 | if (use_lro) { | |
663 | if (vlan_extracted) | |
664 | lro_vlan_hwaccel_receive_skb(&pr->lro_mgr, skb, | |
665 | pr->port->vgrp, | |
666 | cqe->vlan_tag, | |
667 | cqe); | |
668 | else | |
669 | lro_receive_skb(&pr->lro_mgr, skb, cqe); | |
670 | } else { | |
671 | if (vlan_extracted) | |
672 | vlan_hwaccel_receive_skb(skb, pr->port->vgrp, | |
673 | cqe->vlan_tag); | |
674 | else | |
675 | netif_receive_skb(skb); | |
676 | } | |
677 | } | |
678 | ||
bea3348e SH |
679 | static int ehea_proc_rwqes(struct net_device *dev, |
680 | struct ehea_port_res *pr, | |
681 | int budget) | |
7a291083 | 682 | { |
18604c54 | 683 | struct ehea_port *port = pr->port; |
7a291083 JBT |
684 | struct ehea_qp *qp = pr->qp; |
685 | struct ehea_cqe *cqe; | |
686 | struct sk_buff *skb; | |
687 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
688 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
689 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
690 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
691 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
692 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
693 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
bea3348e | 694 | int wqe_index, last_wqe_index, rq, port_reset; |
7a291083 JBT |
695 | |
696 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
697 | last_wqe_index = 0; | |
7a291083 | 698 | |
7a291083 | 699 | cqe = ehea_poll_rq1(qp, &wqe_index); |
bea3348e | 700 | while ((processed < budget) && cqe) { |
7a291083 JBT |
701 | ehea_inc_rq1(qp); |
702 | processed_rq1++; | |
703 | processed++; | |
7a291083 JBT |
704 | if (netif_msg_rx_status(port)) |
705 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
706 | ||
707 | last_wqe_index = wqe_index; | |
708 | rmb(); | |
709 | if (!ehea_check_cqe(cqe, &rq)) { | |
508d2b5d DM |
710 | if (rq == 1) { |
711 | /* LL RQ1 */ | |
7a291083 JBT |
712 | skb = get_skb_by_index_ll(skb_arr_rq1, |
713 | skb_arr_rq1_len, | |
714 | wqe_index); | |
715 | if (unlikely(!skb)) { | |
716 | if (netif_msg_rx_err(port)) | |
717 | ehea_error("LL rq1: skb=NULL"); | |
18604c54 | 718 | |
bea3348e | 719 | skb = netdev_alloc_skb(dev, |
7a291083 JBT |
720 | EHEA_L_PKT_SIZE); |
721 | if (!skb) | |
722 | break; | |
723 | } | |
508d2b5d | 724 | skb_copy_to_linear_data(skb, ((char *)cqe) + 64, |
d1d25aab | 725 | cqe->num_bytes_transfered - 4); |
bea3348e | 726 | ehea_fill_skb(dev, skb, cqe); |
508d2b5d DM |
727 | } else if (rq == 2) { |
728 | /* RQ2 */ | |
7a291083 JBT |
729 | skb = get_skb_by_index(skb_arr_rq2, |
730 | skb_arr_rq2_len, cqe); | |
731 | if (unlikely(!skb)) { | |
732 | if (netif_msg_rx_err(port)) | |
733 | ehea_error("rq2: skb=NULL"); | |
734 | break; | |
735 | } | |
bea3348e | 736 | ehea_fill_skb(dev, skb, cqe); |
7a291083 | 737 | processed_rq2++; |
508d2b5d DM |
738 | } else { |
739 | /* RQ3 */ | |
7a291083 JBT |
740 | skb = get_skb_by_index(skb_arr_rq3, |
741 | skb_arr_rq3_len, cqe); | |
742 | if (unlikely(!skb)) { | |
743 | if (netif_msg_rx_err(port)) | |
744 | ehea_error("rq3: skb=NULL"); | |
745 | break; | |
746 | } | |
bea3348e | 747 | ehea_fill_skb(dev, skb, cqe); |
7a291083 JBT |
748 | processed_rq3++; |
749 | } | |
750 | ||
d4dc4ec9 | 751 | ehea_proc_skb(pr, cqe, skb); |
18604c54 | 752 | } else { |
acbddb59 | 753 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
754 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
755 | &processed_rq2, | |
756 | &processed_rq3); | |
757 | if (port_reset) | |
758 | break; | |
759 | } | |
760 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
761 | } | |
d4dc4ec9 JBT |
762 | if (use_lro) |
763 | lro_flush_all(&pr->lro_mgr); | |
7a291083 | 764 | |
7a291083 JBT |
765 | pr->rx_packets += processed; |
766 | ||
767 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
768 | ehea_refill_rq2(pr, processed_rq2); | |
769 | ehea_refill_rq3(pr, processed_rq3); | |
770 | ||
bea3348e | 771 | return processed; |
7a291083 JBT |
772 | } |
773 | ||
18604c54 | 774 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 775 | { |
acbddb59 | 776 | struct sk_buff *skb; |
7a291083 JBT |
777 | struct ehea_cq *send_cq = pr->send_cq; |
778 | struct ehea_cqe *cqe; | |
18604c54 | 779 | int quota = my_quota; |
7a291083 JBT |
780 | int cqe_counter = 0; |
781 | int swqe_av = 0; | |
acbddb59 | 782 | int index; |
7a291083 JBT |
783 | unsigned long flags; |
784 | ||
18604c54 | 785 | cqe = ehea_poll_cq(send_cq); |
508d2b5d | 786 | while (cqe && (quota > 0)) { |
18604c54 JBT |
787 | ehea_inc_cq(send_cq); |
788 | ||
7a291083 JBT |
789 | cqe_counter++; |
790 | rmb(); | |
791 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { | |
792 | ehea_error("Send Completion Error: Resetting port"); | |
793 | if (netif_msg_tx_err(pr->port)) | |
794 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
2f69ae01 | 795 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
796 | break; |
797 | } | |
798 | ||
799 | if (netif_msg_tx_done(pr->port)) | |
800 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
801 | ||
802 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
803 | == EHEA_SWQE2_TYPE)) { |
804 | ||
805 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
806 | skb = pr->sq_skba.arr[index]; | |
807 | dev_kfree_skb(skb); | |
808 | pr->sq_skba.arr[index] = NULL; | |
809 | } | |
7a291083 JBT |
810 | |
811 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
812 | quota--; | |
18604c54 JBT |
813 | |
814 | cqe = ehea_poll_cq(send_cq); | |
815 | }; | |
7a291083 JBT |
816 | |
817 | ehea_update_feca(send_cq, cqe_counter); | |
818 | atomic_add(swqe_av, &pr->swqe_avail); | |
819 | ||
820 | spin_lock_irqsave(&pr->netif_queue, flags); | |
18604c54 | 821 | |
7a291083 JBT |
822 | if (pr->queue_stopped && (atomic_read(&pr->swqe_avail) |
823 | >= pr->swqe_refill_th)) { | |
824 | netif_wake_queue(pr->port->netdev); | |
825 | pr->queue_stopped = 0; | |
826 | } | |
827 | spin_unlock_irqrestore(&pr->netif_queue, flags); | |
828 | ||
18604c54 | 829 | return cqe; |
7a291083 JBT |
830 | } |
831 | ||
18604c54 | 832 | #define EHEA_NAPI_POLL_NUM_BEFORE_IRQ 16 |
bea3348e | 833 | #define EHEA_POLL_MAX_CQES 65535 |
18604c54 | 834 | |
bea3348e | 835 | static int ehea_poll(struct napi_struct *napi, int budget) |
7a291083 | 836 | { |
508d2b5d DM |
837 | struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, |
838 | napi); | |
bea3348e | 839 | struct net_device *dev = pr->port->netdev; |
18604c54 JBT |
840 | struct ehea_cqe *cqe; |
841 | struct ehea_cqe *cqe_skb = NULL; | |
842 | int force_irq, wqe_index; | |
bea3348e | 843 | int rx = 0; |
18604c54 JBT |
844 | |
845 | force_irq = (pr->poll_counter > EHEA_NAPI_POLL_NUM_BEFORE_IRQ); | |
bea3348e SH |
846 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
847 | ||
848 | if (!force_irq) | |
849 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
18604c54 | 850 | |
bea3348e | 851 | while ((rx != budget) || force_irq) { |
18604c54 | 852 | pr->poll_counter = 0; |
bea3348e | 853 | force_irq = 0; |
288379f0 | 854 | napi_complete(napi); |
18604c54 JBT |
855 | ehea_reset_cq_ep(pr->recv_cq); |
856 | ehea_reset_cq_ep(pr->send_cq); | |
857 | ehea_reset_cq_n1(pr->recv_cq); | |
858 | ehea_reset_cq_n1(pr->send_cq); | |
859 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); | |
860 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
861 | ||
e542aa6b | 862 | if (!cqe && !cqe_skb) |
bea3348e | 863 | return rx; |
18604c54 | 864 | |
288379f0 | 865 | if (!napi_reschedule(napi)) |
bea3348e | 866 | return rx; |
18604c54 | 867 | |
bea3348e SH |
868 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
869 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
870 | } | |
e542aa6b | 871 | |
bea3348e SH |
872 | pr->poll_counter++; |
873 | return rx; | |
7a291083 JBT |
874 | } |
875 | ||
8d22c971 JBT |
876 | #ifdef CONFIG_NET_POLL_CONTROLLER |
877 | static void ehea_netpoll(struct net_device *dev) | |
878 | { | |
879 | struct ehea_port *port = netdev_priv(dev); | |
bea3348e | 880 | int i; |
8d22c971 | 881 | |
bea3348e | 882 | for (i = 0; i < port->num_def_qps; i++) |
288379f0 | 883 | napi_schedule(&port->port_res[i].napi); |
8d22c971 JBT |
884 | } |
885 | #endif | |
886 | ||
7d12e780 | 887 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
888 | { |
889 | struct ehea_port_res *pr = param; | |
18604c54 | 890 | |
288379f0 | 891 | napi_schedule(&pr->napi); |
18604c54 | 892 | |
7a291083 JBT |
893 | return IRQ_HANDLED; |
894 | } | |
895 | ||
7d12e780 | 896 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
897 | { |
898 | struct ehea_port *port = param; | |
899 | struct ehea_eqe *eqe; | |
d2db9eea | 900 | struct ehea_qp *qp; |
7a291083 JBT |
901 | u32 qp_token; |
902 | ||
903 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 904 | |
7a291083 | 905 | while (eqe) { |
7a291083 | 906 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
a1c5a893 | 907 | ehea_error("QP aff_err: entry=0x%llx, token=0x%x", |
bb3a6449 | 908 | eqe->entry, qp_token); |
d2db9eea JBT |
909 | |
910 | qp = port->port_res[qp_token].qp; | |
911 | ehea_error_data(port->adapter, qp->fw_handle); | |
bb3a6449 | 912 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
913 | } |
914 | ||
2f69ae01 | 915 | ehea_schedule_port_reset(port); |
d2db9eea | 916 | |
7a291083 JBT |
917 | return IRQ_HANDLED; |
918 | } | |
919 | ||
920 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
921 | int logical_port) | |
922 | { | |
923 | int i; | |
924 | ||
1acf2318 | 925 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 | 926 | if (adapter->port[i]) |
d1d25aab | 927 | if (adapter->port[i]->logical_port_id == logical_port) |
41b69c70 | 928 | return adapter->port[i]; |
7a291083 JBT |
929 | return NULL; |
930 | } | |
931 | ||
932 | int ehea_sense_port_attr(struct ehea_port *port) | |
933 | { | |
934 | int ret; | |
935 | u64 hret; | |
936 | struct hcp_ehea_port_cb0 *cb0; | |
937 | ||
508d2b5d | 938 | /* may be called via ehea_neq_tasklet() */ |
3faf2693 | 939 | cb0 = (void *)get_zeroed_page(GFP_ATOMIC); |
508d2b5d | 940 | if (!cb0) { |
7a291083 JBT |
941 | ehea_error("no mem for cb0"); |
942 | ret = -ENOMEM; | |
943 | goto out; | |
944 | } | |
945 | ||
946 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
947 | port->logical_port_id, H_PORT_CB0, | |
948 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
949 | cb0); | |
950 | if (hret != H_SUCCESS) { | |
951 | ret = -EIO; | |
952 | goto out_free; | |
953 | } | |
954 | ||
955 | /* MAC address */ | |
956 | port->mac_addr = cb0->port_mac_addr << 16; | |
957 | ||
508d2b5d | 958 | if (!is_valid_ether_addr((u8 *)&port->mac_addr)) { |
7a291083 JBT |
959 | ret = -EADDRNOTAVAIL; |
960 | goto out_free; | |
961 | } | |
962 | ||
963 | /* Port speed */ | |
964 | switch (cb0->port_speed) { | |
965 | case H_SPEED_10M_H: | |
966 | port->port_speed = EHEA_SPEED_10M; | |
967 | port->full_duplex = 0; | |
968 | break; | |
969 | case H_SPEED_10M_F: | |
970 | port->port_speed = EHEA_SPEED_10M; | |
971 | port->full_duplex = 1; | |
972 | break; | |
973 | case H_SPEED_100M_H: | |
974 | port->port_speed = EHEA_SPEED_100M; | |
975 | port->full_duplex = 0; | |
976 | break; | |
977 | case H_SPEED_100M_F: | |
978 | port->port_speed = EHEA_SPEED_100M; | |
979 | port->full_duplex = 1; | |
980 | break; | |
981 | case H_SPEED_1G_F: | |
982 | port->port_speed = EHEA_SPEED_1G; | |
983 | port->full_duplex = 1; | |
984 | break; | |
985 | case H_SPEED_10G_F: | |
986 | port->port_speed = EHEA_SPEED_10G; | |
987 | port->full_duplex = 1; | |
988 | break; | |
989 | default: | |
990 | port->port_speed = 0; | |
991 | port->full_duplex = 0; | |
992 | break; | |
993 | } | |
994 | ||
e919b593 | 995 | port->autoneg = 1; |
18604c54 | 996 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 997 | |
7a291083 | 998 | /* Number of default QPs */ |
18604c54 JBT |
999 | if (use_mcs) |
1000 | port->num_def_qps = cb0->num_default_qps; | |
1001 | else | |
1002 | port->num_def_qps = 1; | |
7a291083 JBT |
1003 | |
1004 | if (!port->num_def_qps) { | |
1005 | ret = -EINVAL; | |
1006 | goto out_free; | |
1007 | } | |
1008 | ||
18604c54 JBT |
1009 | port->num_tx_qps = num_tx_qps; |
1010 | ||
1011 | if (port->num_def_qps >= port->num_tx_qps) | |
7a291083 JBT |
1012 | port->num_add_tx_qps = 0; |
1013 | else | |
18604c54 | 1014 | port->num_add_tx_qps = port->num_tx_qps - port->num_def_qps; |
7a291083 JBT |
1015 | |
1016 | ret = 0; | |
1017 | out_free: | |
1018 | if (ret || netif_msg_probe(port)) | |
1019 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
3faf2693 | 1020 | free_page((unsigned long)cb0); |
7a291083 JBT |
1021 | out: |
1022 | return ret; | |
1023 | } | |
1024 | ||
1025 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
1026 | { | |
1027 | struct hcp_ehea_port_cb4 *cb4; | |
1028 | u64 hret; | |
1029 | int ret = 0; | |
1030 | ||
3faf2693 | 1031 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1032 | if (!cb4) { |
1033 | ehea_error("no mem for cb4"); | |
1034 | ret = -ENOMEM; | |
1035 | goto out; | |
1036 | } | |
1037 | ||
1038 | cb4->port_speed = port_speed; | |
1039 | ||
1040 | netif_carrier_off(port->netdev); | |
1041 | ||
1042 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1043 | port->logical_port_id, | |
1044 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
1045 | if (hret == H_SUCCESS) { | |
1046 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
1047 | ||
1048 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1049 | port->logical_port_id, | |
1050 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
1051 | cb4); | |
1052 | if (hret == H_SUCCESS) { | |
1053 | switch (cb4->port_speed) { | |
1054 | case H_SPEED_10M_H: | |
1055 | port->port_speed = EHEA_SPEED_10M; | |
1056 | port->full_duplex = 0; | |
1057 | break; | |
1058 | case H_SPEED_10M_F: | |
1059 | port->port_speed = EHEA_SPEED_10M; | |
1060 | port->full_duplex = 1; | |
1061 | break; | |
1062 | case H_SPEED_100M_H: | |
1063 | port->port_speed = EHEA_SPEED_100M; | |
1064 | port->full_duplex = 0; | |
1065 | break; | |
1066 | case H_SPEED_100M_F: | |
1067 | port->port_speed = EHEA_SPEED_100M; | |
1068 | port->full_duplex = 1; | |
1069 | break; | |
1070 | case H_SPEED_1G_F: | |
1071 | port->port_speed = EHEA_SPEED_1G; | |
1072 | port->full_duplex = 1; | |
1073 | break; | |
1074 | case H_SPEED_10G_F: | |
1075 | port->port_speed = EHEA_SPEED_10G; | |
1076 | port->full_duplex = 1; | |
1077 | break; | |
1078 | default: | |
1079 | port->port_speed = 0; | |
1080 | port->full_duplex = 0; | |
1081 | break; | |
1082 | } | |
1083 | } else { | |
1084 | ehea_error("Failed sensing port speed"); | |
1085 | ret = -EIO; | |
1086 | } | |
1087 | } else { | |
1088 | if (hret == H_AUTHORITY) { | |
7674a588 | 1089 | ehea_info("Hypervisor denied setting port speed"); |
7a291083 JBT |
1090 | ret = -EPERM; |
1091 | } else { | |
1092 | ret = -EIO; | |
1093 | ehea_error("Failed setting port speed"); | |
1094 | } | |
1095 | } | |
8759cf76 JBT |
1096 | if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP)) |
1097 | netif_carrier_on(port->netdev); | |
1098 | ||
3faf2693 | 1099 | free_page((unsigned long)cb4); |
7a291083 JBT |
1100 | out: |
1101 | return ret; | |
1102 | } | |
1103 | ||
1104 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
1105 | { | |
1106 | int ret; | |
1107 | u8 ec; | |
1108 | u8 portnum; | |
1109 | struct ehea_port *port; | |
1110 | ||
1111 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
1112 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
1113 | port = ehea_get_port(adapter, portnum); | |
1114 | ||
1115 | switch (ec) { | |
1116 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
1117 | ||
1118 | if (!port) { | |
1119 | ehea_error("unknown portnum %x", portnum); | |
1120 | break; | |
1121 | } | |
1122 | ||
1123 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
1124 | if (!netif_carrier_ok(port->netdev)) { | |
1e1675cc | 1125 | ret = ehea_sense_port_attr(port); |
7a291083 JBT |
1126 | if (ret) { |
1127 | ehea_error("failed resensing port " | |
1128 | "attributes"); | |
1129 | break; | |
1130 | } | |
1131 | ||
1132 | if (netif_msg_link(port)) | |
1133 | ehea_info("%s: Logical port up: %dMbps " | |
1134 | "%s Duplex", | |
1135 | port->netdev->name, | |
1136 | port->port_speed, | |
1137 | port->full_duplex == | |
1138 | 1 ? "Full" : "Half"); | |
1139 | ||
1140 | netif_carrier_on(port->netdev); | |
1141 | netif_wake_queue(port->netdev); | |
1142 | } | |
1143 | } else | |
1144 | if (netif_carrier_ok(port->netdev)) { | |
1145 | if (netif_msg_link(port)) | |
1146 | ehea_info("%s: Logical port down", | |
1147 | port->netdev->name); | |
1148 | netif_carrier_off(port->netdev); | |
1149 | netif_stop_queue(port->netdev); | |
1150 | } | |
1151 | ||
1152 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
8759cf76 | 1153 | port->phy_link = EHEA_PHY_LINK_UP; |
7a291083 JBT |
1154 | if (netif_msg_link(port)) |
1155 | ehea_info("%s: Physical port up", | |
1156 | port->netdev->name); | |
8759cf76 JBT |
1157 | if (prop_carrier_state) |
1158 | netif_carrier_on(port->netdev); | |
7a291083 | 1159 | } else { |
8759cf76 | 1160 | port->phy_link = EHEA_PHY_LINK_DOWN; |
7a291083 JBT |
1161 | if (netif_msg_link(port)) |
1162 | ehea_info("%s: Physical port down", | |
1163 | port->netdev->name); | |
8759cf76 JBT |
1164 | if (prop_carrier_state) |
1165 | netif_carrier_off(port->netdev); | |
7a291083 JBT |
1166 | } |
1167 | ||
1168 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
1169 | ehea_info("External switch port is primary port"); | |
1170 | else | |
1171 | ehea_info("External switch port is backup port"); | |
1172 | ||
1173 | break; | |
1174 | case EHEA_EC_ADAPTER_MALFUNC: | |
1175 | ehea_error("Adapter malfunction"); | |
1176 | break; | |
1177 | case EHEA_EC_PORT_MALFUNC: | |
1178 | ehea_info("Port malfunction: Device: %s", port->netdev->name); | |
1179 | netif_carrier_off(port->netdev); | |
1180 | netif_stop_queue(port->netdev); | |
1181 | break; | |
1182 | default: | |
a1c5a893 | 1183 | ehea_error("unknown event code %x, eqe=0x%llX", ec, eqe); |
7a291083 JBT |
1184 | break; |
1185 | } | |
1186 | } | |
1187 | ||
1188 | static void ehea_neq_tasklet(unsigned long data) | |
1189 | { | |
508d2b5d | 1190 | struct ehea_adapter *adapter = (struct ehea_adapter *)data; |
7a291083 JBT |
1191 | struct ehea_eqe *eqe; |
1192 | u64 event_mask; | |
1193 | ||
1194 | eqe = ehea_poll_eq(adapter->neq); | |
1195 | ehea_debug("eqe=%p", eqe); | |
1196 | ||
1197 | while (eqe) { | |
1198 | ehea_debug("*eqe=%lx", eqe->entry); | |
1199 | ehea_parse_eqe(adapter, eqe->entry); | |
1200 | eqe = ehea_poll_eq(adapter->neq); | |
1201 | ehea_debug("next eqe=%p", eqe); | |
1202 | } | |
1203 | ||
1204 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
1205 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
1206 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
1207 | ||
1208 | ehea_h_reset_events(adapter->handle, | |
1209 | adapter->neq->fw_handle, event_mask); | |
1210 | } | |
1211 | ||
7d12e780 | 1212 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
1213 | { |
1214 | struct ehea_adapter *adapter = param; | |
1215 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
1216 | return IRQ_HANDLED; | |
1217 | } | |
1218 | ||
1219 | ||
1220 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
1221 | { | |
1222 | int ret; | |
1223 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
1224 | ||
e2878806 TK |
1225 | ehea_init_fill_rq1(pr, init_attr->act_nr_rwqes_rq1 |
1226 | - init_attr->act_nr_rwqes_rq2 | |
1227 | - init_attr->act_nr_rwqes_rq3 - 1); | |
7a291083 | 1228 | |
e2878806 | 1229 | ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); |
7a291083 JBT |
1230 | |
1231 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
1232 | ||
1233 | return ret; | |
1234 | } | |
1235 | ||
1236 | static int ehea_reg_interrupts(struct net_device *dev) | |
1237 | { | |
1238 | struct ehea_port *port = netdev_priv(dev); | |
1239 | struct ehea_port_res *pr; | |
1240 | int i, ret; | |
1241 | ||
7a291083 JBT |
1242 | |
1243 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
1244 | dev->name); | |
1245 | ||
6b08f3ae | 1246 | ret = ibmebus_request_irq(port->qp_eq->attr.ist1, |
7a291083 | 1247 | ehea_qp_aff_irq_handler, |
38515e90 | 1248 | IRQF_DISABLED, port->int_aff_name, port); |
7a291083 JBT |
1249 | if (ret) { |
1250 | ehea_error("failed registering irq for qp_aff_irq_handler:" | |
1251 | "ist=%X", port->qp_eq->attr.ist1); | |
1252 | goto out_free_qpeq; | |
1253 | } | |
1254 | ||
1255 | if (netif_msg_ifup(port)) | |
1256 | ehea_info("irq_handle 0x%X for function qp_aff_irq_handler " | |
1257 | "registered", port->qp_eq->attr.ist1); | |
1258 | ||
18604c54 | 1259 | |
7a291083 JBT |
1260 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { |
1261 | pr = &port->port_res[i]; | |
1262 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 | 1263 | "%s-queue%d", dev->name, i); |
6b08f3ae | 1264 | ret = ibmebus_request_irq(pr->eq->attr.ist1, |
18604c54 | 1265 | ehea_recv_irq_handler, |
38515e90 | 1266 | IRQF_DISABLED, pr->int_send_name, |
7a291083 JBT |
1267 | pr); |
1268 | if (ret) { | |
18604c54 | 1269 | ehea_error("failed registering irq for ehea_queue " |
7a291083 | 1270 | "port_res_nr:%d, ist=%X", i, |
18604c54 | 1271 | pr->eq->attr.ist1); |
7a291083 JBT |
1272 | goto out_free_req; |
1273 | } | |
1274 | if (netif_msg_ifup(port)) | |
18604c54 JBT |
1275 | ehea_info("irq_handle 0x%X for function ehea_queue_int " |
1276 | "%d registered", pr->eq->attr.ist1, i); | |
7a291083 JBT |
1277 | } |
1278 | out: | |
1279 | return ret; | |
1280 | ||
18604c54 | 1281 | |
7a291083 JBT |
1282 | out_free_req: |
1283 | while (--i >= 0) { | |
18604c54 | 1284 | u32 ist = port->port_res[i].eq->attr.ist1; |
6b08f3ae | 1285 | ibmebus_free_irq(ist, &port->port_res[i]); |
7a291083 | 1286 | } |
18604c54 | 1287 | |
7a291083 | 1288 | out_free_qpeq: |
6b08f3ae | 1289 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 | 1290 | i = port->num_def_qps; |
18604c54 | 1291 | |
7a291083 | 1292 | goto out; |
18604c54 | 1293 | |
7a291083 JBT |
1294 | } |
1295 | ||
1296 | static void ehea_free_interrupts(struct net_device *dev) | |
1297 | { | |
1298 | struct ehea_port *port = netdev_priv(dev); | |
1299 | struct ehea_port_res *pr; | |
1300 | int i; | |
1301 | ||
1302 | /* send */ | |
18604c54 | 1303 | |
7a291083 JBT |
1304 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { |
1305 | pr = &port->port_res[i]; | |
6b08f3ae | 1306 | ibmebus_free_irq(pr->eq->attr.ist1, pr); |
7a291083 JBT |
1307 | if (netif_msg_intr(port)) |
1308 | ehea_info("free send irq for res %d with handle 0x%X", | |
18604c54 | 1309 | i, pr->eq->attr.ist1); |
7a291083 JBT |
1310 | } |
1311 | ||
1312 | /* associated events */ | |
6b08f3ae | 1313 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 JBT |
1314 | if (netif_msg_intr(port)) |
1315 | ehea_info("associated event interrupt for handle 0x%X freed", | |
1316 | port->qp_eq->attr.ist1); | |
1317 | } | |
1318 | ||
1319 | static int ehea_configure_port(struct ehea_port *port) | |
1320 | { | |
1321 | int ret, i; | |
1322 | u64 hret, mask; | |
1323 | struct hcp_ehea_port_cb0 *cb0; | |
1324 | ||
1325 | ret = -ENOMEM; | |
3faf2693 | 1326 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1327 | if (!cb0) |
1328 | goto out; | |
1329 | ||
1330 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1331 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1332 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1333 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1334 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1335 | PXLY_RC_VLAN_FILTER) | |
1336 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1337 | ||
18604c54 JBT |
1338 | for (i = 0; i < port->num_mcs; i++) |
1339 | if (use_mcs) | |
1340 | cb0->default_qpn_arr[i] = | |
1341 | port->port_res[i].qp->init_attr.qp_nr; | |
1342 | else | |
1343 | cb0->default_qpn_arr[i] = | |
1344 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1345 | |
7a291083 JBT |
1346 | if (netif_msg_ifup(port)) |
1347 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1348 | ||
1349 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1350 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1351 | ||
1352 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1353 | port->logical_port_id, | |
1354 | H_PORT_CB0, mask, cb0); | |
1355 | ret = -EIO; | |
1356 | if (hret != H_SUCCESS) | |
1357 | goto out_free; | |
1358 | ||
1359 | ret = 0; | |
1360 | ||
1361 | out_free: | |
3faf2693 | 1362 | free_page((unsigned long)cb0); |
7a291083 JBT |
1363 | out: |
1364 | return ret; | |
1365 | } | |
1366 | ||
e542aa6b | 1367 | int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1368 | { |
e542aa6b | 1369 | int ret; |
7a291083 JBT |
1370 | struct ehea_adapter *adapter = pr->port->adapter; |
1371 | ||
e542aa6b JBT |
1372 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1373 | if (ret) | |
7a291083 JBT |
1374 | goto out; |
1375 | ||
e542aa6b JBT |
1376 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1377 | if (ret) | |
1378 | goto out_free; | |
7a291083 JBT |
1379 | |
1380 | return 0; | |
1381 | ||
e542aa6b JBT |
1382 | out_free: |
1383 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1384 | out: |
e542aa6b | 1385 | ehea_error("Generating SMRS failed\n"); |
7a291083 JBT |
1386 | return -EIO; |
1387 | } | |
1388 | ||
e542aa6b | 1389 | int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1390 | { |
e542aa6b JBT |
1391 | if ((ehea_rem_mr(&pr->send_mr)) |
1392 | || (ehea_rem_mr(&pr->recv_mr))) | |
1393 | return -EIO; | |
1394 | else | |
1395 | return 0; | |
7a291083 JBT |
1396 | } |
1397 | ||
1398 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1399 | { | |
508d2b5d | 1400 | int arr_size = sizeof(void *) * max_q_entries; |
7a291083 JBT |
1401 | |
1402 | q_skba->arr = vmalloc(arr_size); | |
1403 | if (!q_skba->arr) | |
1404 | return -ENOMEM; | |
1405 | ||
1406 | memset(q_skba->arr, 0, arr_size); | |
1407 | ||
1408 | q_skba->len = max_q_entries; | |
1409 | q_skba->index = 0; | |
1410 | q_skba->os_skbs = 0; | |
1411 | ||
1412 | return 0; | |
1413 | } | |
1414 | ||
1415 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1416 | struct port_res_cfg *pr_cfg, int queue_token) | |
1417 | { | |
1418 | struct ehea_adapter *adapter = port->adapter; | |
1419 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1420 | struct ehea_qp_init_attr *init_attr = NULL; | |
1421 | int ret = -EIO; | |
1422 | ||
1423 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1424 | ||
1425 | pr->port = port; | |
7a291083 JBT |
1426 | spin_lock_init(&pr->xmit_lock); |
1427 | spin_lock_init(&pr->netif_queue); | |
1428 | ||
18604c54 JBT |
1429 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1430 | if (!pr->eq) { | |
1431 | ehea_error("create_eq failed (eq)"); | |
7a291083 JBT |
1432 | goto out_free; |
1433 | } | |
1434 | ||
1435 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1436 | pr->eq->fw_handle, |
7a291083 JBT |
1437 | port->logical_port_id); |
1438 | if (!pr->recv_cq) { | |
1439 | ehea_error("create_cq failed (cq_recv)"); | |
1440 | goto out_free; | |
1441 | } | |
1442 | ||
1443 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1444 | pr->eq->fw_handle, |
7a291083 JBT |
1445 | port->logical_port_id); |
1446 | if (!pr->send_cq) { | |
1447 | ehea_error("create_cq failed (cq_send)"); | |
1448 | goto out_free; | |
1449 | } | |
1450 | ||
1451 | if (netif_msg_ifup(port)) | |
1452 | ehea_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d", | |
1453 | pr->send_cq->attr.act_nr_of_cqes, | |
1454 | pr->recv_cq->attr.act_nr_of_cqes); | |
1455 | ||
1456 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1457 | if (!init_attr) { | |
1458 | ret = -ENOMEM; | |
1459 | ehea_error("no mem for ehea_qp_init_attr"); | |
1460 | goto out_free; | |
1461 | } | |
1462 | ||
1463 | init_attr->low_lat_rq1 = 1; | |
1464 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1465 | init_attr->rq_count = 3; | |
1466 | init_attr->qp_token = queue_token; | |
1467 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1468 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1469 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1470 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1471 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1472 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1473 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1474 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1475 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1476 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1477 | init_attr->port_nr = port->logical_port_id; | |
1478 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1479 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1480 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1481 | ||
1482 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1483 | if (!pr->qp) { | |
1484 | ehea_error("create_qp failed"); | |
1485 | ret = -EIO; | |
1486 | goto out_free; | |
1487 | } | |
1488 | ||
1489 | if (netif_msg_ifup(port)) | |
1490 | ehea_info("QP: qp_nr=%d\n act_nr_snd_wqe=%d\n nr_rwqe_rq1=%d\n " | |
1491 | "nr_rwqe_rq2=%d\n nr_rwqe_rq3=%d", init_attr->qp_nr, | |
1492 | init_attr->act_nr_send_wqes, | |
1493 | init_attr->act_nr_rwqes_rq1, | |
1494 | init_attr->act_nr_rwqes_rq2, | |
1495 | init_attr->act_nr_rwqes_rq3); | |
1496 | ||
44fb3126 TK |
1497 | pr->sq_skba_size = init_attr->act_nr_send_wqes + 1; |
1498 | ||
1499 | ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size); | |
7a291083 JBT |
1500 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); |
1501 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1502 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1503 | if (ret) | |
1504 | goto out_free; | |
1505 | ||
1506 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1507 | if (ehea_gen_smrs(pr) != 0) { | |
1508 | ret = -EIO; | |
1509 | goto out_free; | |
1510 | } | |
18604c54 | 1511 | |
7a291083 JBT |
1512 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1513 | ||
1514 | kfree(init_attr); | |
18604c54 | 1515 | |
bea3348e | 1516 | netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll, 64); |
18604c54 | 1517 | |
d4dc4ec9 JBT |
1518 | pr->lro_mgr.max_aggr = pr->port->lro_max_aggr; |
1519 | pr->lro_mgr.max_desc = MAX_LRO_DESCRIPTORS; | |
1520 | pr->lro_mgr.lro_arr = pr->lro_desc; | |
1521 | pr->lro_mgr.get_skb_header = get_skb_hdr; | |
1522 | pr->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID; | |
1523 | pr->lro_mgr.dev = port->netdev; | |
1524 | pr->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY; | |
1525 | pr->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY; | |
1526 | ||
7a291083 JBT |
1527 | ret = 0; |
1528 | goto out; | |
1529 | ||
1530 | out_free: | |
1531 | kfree(init_attr); | |
1532 | vfree(pr->sq_skba.arr); | |
1533 | vfree(pr->rq1_skba.arr); | |
1534 | vfree(pr->rq2_skba.arr); | |
1535 | vfree(pr->rq3_skba.arr); | |
1536 | ehea_destroy_qp(pr->qp); | |
1537 | ehea_destroy_cq(pr->send_cq); | |
1538 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1539 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1540 | out: |
1541 | return ret; | |
1542 | } | |
1543 | ||
1544 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1545 | { | |
1546 | int ret, i; | |
1547 | ||
357eb46d HH |
1548 | if (pr->qp) |
1549 | netif_napi_del(&pr->napi); | |
1550 | ||
7a291083 JBT |
1551 | ret = ehea_destroy_qp(pr->qp); |
1552 | ||
1553 | if (!ret) { | |
1554 | ehea_destroy_cq(pr->send_cq); | |
1555 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1556 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1557 | |
1558 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1559 | if (pr->rq1_skba.arr[i]) | |
1560 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1561 | ||
1562 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1563 | if (pr->rq2_skba.arr[i]) | |
1564 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1565 | ||
1566 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1567 | if (pr->rq3_skba.arr[i]) | |
1568 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1569 | ||
1570 | for (i = 0; i < pr->sq_skba.len; i++) | |
1571 | if (pr->sq_skba.arr[i]) | |
1572 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1573 | ||
1574 | vfree(pr->rq1_skba.arr); | |
1575 | vfree(pr->rq2_skba.arr); | |
1576 | vfree(pr->rq3_skba.arr); | |
1577 | vfree(pr->sq_skba.arr); | |
1578 | ret = ehea_rem_smrs(pr); | |
1579 | } | |
1580 | return ret; | |
1581 | } | |
1582 | ||
1583 | /* | |
1584 | * The write_* functions store information in swqe which is used by | |
1585 | * the hardware to calculate the ip/tcp/udp checksum | |
1586 | */ | |
1587 | ||
1588 | static inline void write_ip_start_end(struct ehea_swqe *swqe, | |
1589 | const struct sk_buff *skb) | |
1590 | { | |
eddc9ec5 | 1591 | swqe->ip_start = skb_network_offset(skb); |
c9bdd4b5 | 1592 | swqe->ip_end = (u8)(swqe->ip_start + ip_hdrlen(skb) - 1); |
7a291083 JBT |
1593 | } |
1594 | ||
1595 | static inline void write_tcp_offset_end(struct ehea_swqe *swqe, | |
1596 | const struct sk_buff *skb) | |
1597 | { | |
1598 | swqe->tcp_offset = | |
1599 | (u8)(swqe->ip_end + 1 + offsetof(struct tcphdr, check)); | |
1600 | ||
1601 | swqe->tcp_end = (u16)skb->len - 1; | |
1602 | } | |
1603 | ||
1604 | static inline void write_udp_offset_end(struct ehea_swqe *swqe, | |
1605 | const struct sk_buff *skb) | |
1606 | { | |
1607 | swqe->tcp_offset = | |
1608 | (u8)(swqe->ip_end + 1 + offsetof(struct udphdr, check)); | |
1609 | ||
1610 | swqe->tcp_end = (u16)skb->len - 1; | |
1611 | } | |
1612 | ||
1613 | ||
1614 | static void write_swqe2_TSO(struct sk_buff *skb, | |
1615 | struct ehea_swqe *swqe, u32 lkey) | |
1616 | { | |
1617 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
1618 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; | |
1619 | int skb_data_size = skb->len - skb->data_len; | |
1620 | int headersize; | |
7a291083 JBT |
1621 | |
1622 | /* Packet is TCP with TSO enabled */ | |
1623 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1624 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1625 | /* copy only eth/ip/tcp headers to immediate data and | |
1626 | * the rest of skb->data to sg1entry | |
1627 | */ | |
ab6a5bb6 | 1628 | headersize = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); |
7a291083 JBT |
1629 | |
1630 | skb_data_size = skb->len - skb->data_len; | |
1631 | ||
1632 | if (skb_data_size >= headersize) { | |
1633 | /* copy immediate data */ | |
d626f62b | 1634 | skb_copy_from_linear_data(skb, imm_data, headersize); |
7a291083 JBT |
1635 | swqe->immediate_data_length = headersize; |
1636 | ||
1637 | if (skb_data_size > headersize) { | |
1638 | /* set sg1entry data */ | |
1639 | sg1entry->l_key = lkey; | |
1640 | sg1entry->len = skb_data_size - headersize; | |
44a5b3d5 TK |
1641 | sg1entry->vaddr = |
1642 | ehea_map_vaddr(skb->data + headersize); | |
7a291083 JBT |
1643 | swqe->descriptors++; |
1644 | } | |
1645 | } else | |
1646 | ehea_error("cannot handle fragmented headers"); | |
1647 | } | |
1648 | ||
1649 | static void write_swqe2_nonTSO(struct sk_buff *skb, | |
1650 | struct ehea_swqe *swqe, u32 lkey) | |
1651 | { | |
1652 | int skb_data_size = skb->len - skb->data_len; | |
1653 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; | |
1654 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
7a291083 JBT |
1655 | |
1656 | /* Packet is any nonTSO type | |
1657 | * | |
1658 | * Copy as much as possible skb->data to immediate data and | |
1659 | * the rest to sg1entry | |
1660 | */ | |
1661 | if (skb_data_size >= SWQE2_MAX_IMM) { | |
1662 | /* copy immediate data */ | |
d626f62b | 1663 | skb_copy_from_linear_data(skb, imm_data, SWQE2_MAX_IMM); |
7a291083 JBT |
1664 | |
1665 | swqe->immediate_data_length = SWQE2_MAX_IMM; | |
1666 | ||
1667 | if (skb_data_size > SWQE2_MAX_IMM) { | |
1668 | /* copy sg1entry data */ | |
1669 | sg1entry->l_key = lkey; | |
1670 | sg1entry->len = skb_data_size - SWQE2_MAX_IMM; | |
44a5b3d5 TK |
1671 | sg1entry->vaddr = |
1672 | ehea_map_vaddr(skb->data + SWQE2_MAX_IMM); | |
7a291083 JBT |
1673 | swqe->descriptors++; |
1674 | } | |
1675 | } else { | |
d626f62b | 1676 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1677 | swqe->immediate_data_length = skb_data_size; |
1678 | } | |
1679 | } | |
1680 | ||
1681 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1682 | struct ehea_swqe *swqe, u32 lkey) | |
1683 | { | |
1684 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1685 | skb_frag_t *frag; | |
1686 | int nfrags, sg1entry_contains_frag_data, i; | |
7a291083 JBT |
1687 | |
1688 | nfrags = skb_shinfo(skb)->nr_frags; | |
1689 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
508d2b5d | 1690 | sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list; |
7a291083 JBT |
1691 | swqe->descriptors = 0; |
1692 | sg1entry_contains_frag_data = 0; | |
1693 | ||
1694 | if ((dev->features & NETIF_F_TSO) && skb_shinfo(skb)->gso_size) | |
1695 | write_swqe2_TSO(skb, swqe, lkey); | |
1696 | else | |
1697 | write_swqe2_nonTSO(skb, swqe, lkey); | |
1698 | ||
1699 | /* write descriptors */ | |
1700 | if (nfrags > 0) { | |
1701 | if (swqe->descriptors == 0) { | |
1702 | /* sg1entry not yet used */ | |
1703 | frag = &skb_shinfo(skb)->frags[0]; | |
1704 | ||
1705 | /* copy sg1entry data */ | |
1706 | sg1entry->l_key = lkey; | |
1707 | sg1entry->len = frag->size; | |
44a5b3d5 TK |
1708 | sg1entry->vaddr = |
1709 | ehea_map_vaddr(page_address(frag->page) | |
1710 | + frag->page_offset); | |
7a291083 JBT |
1711 | swqe->descriptors++; |
1712 | sg1entry_contains_frag_data = 1; | |
1713 | } | |
1714 | ||
1715 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1716 | ||
1717 | frag = &skb_shinfo(skb)->frags[i]; | |
1718 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1719 | ||
1720 | sgentry->l_key = lkey; | |
1721 | sgentry->len = frag->size; | |
44a5b3d5 TK |
1722 | sgentry->vaddr = |
1723 | ehea_map_vaddr(page_address(frag->page) | |
1724 | + frag->page_offset); | |
7a291083 JBT |
1725 | swqe->descriptors++; |
1726 | } | |
1727 | } | |
1728 | } | |
1729 | ||
1730 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1731 | { | |
1732 | int ret = 0; | |
1733 | u64 hret; | |
1734 | u8 reg_type; | |
1735 | ||
1736 | /* De/Register untagged packets */ | |
1737 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1738 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1739 | port->logical_port_id, | |
1740 | reg_type, port->mac_addr, 0, hcallid); | |
1741 | if (hret != H_SUCCESS) { | |
f9e29228 | 1742 | ehea_error("%sregistering bc address failed (tagged)", |
508d2b5d | 1743 | hcallid == H_REG_BCMC ? "" : "de"); |
7a291083 JBT |
1744 | ret = -EIO; |
1745 | goto out_herr; | |
1746 | } | |
1747 | ||
1748 | /* De/Register VLAN packets */ | |
1749 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1750 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1751 | port->logical_port_id, | |
1752 | reg_type, port->mac_addr, 0, hcallid); | |
1753 | if (hret != H_SUCCESS) { | |
f9e29228 TK |
1754 | ehea_error("%sregistering bc address failed (vlan)", |
1755 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1756 | ret = -EIO; |
1757 | } | |
1758 | out_herr: | |
1759 | return ret; | |
1760 | } | |
1761 | ||
1762 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1763 | { | |
1764 | struct ehea_port *port = netdev_priv(dev); | |
1765 | struct sockaddr *mac_addr = sa; | |
1766 | struct hcp_ehea_port_cb0 *cb0; | |
1767 | int ret; | |
1768 | u64 hret; | |
1769 | ||
1770 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1771 | ret = -EADDRNOTAVAIL; | |
1772 | goto out; | |
1773 | } | |
1774 | ||
3faf2693 | 1775 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1776 | if (!cb0) { |
1777 | ehea_error("no mem for cb0"); | |
1778 | ret = -ENOMEM; | |
1779 | goto out; | |
1780 | } | |
1781 | ||
1782 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1783 | ||
1784 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1785 | ||
1786 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1787 | port->logical_port_id, H_PORT_CB0, | |
1788 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1789 | if (hret != H_SUCCESS) { | |
1790 | ret = -EIO; | |
1791 | goto out_free; | |
1792 | } | |
1793 | ||
1794 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1795 | ||
1796 | /* Deregister old MAC in pHYP */ | |
00aaea2f JBT |
1797 | if (port->state == EHEA_PORT_UP) { |
1798 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1799 | if (ret) | |
1800 | goto out_upregs; | |
1801 | } | |
7a291083 JBT |
1802 | |
1803 | port->mac_addr = cb0->port_mac_addr << 16; | |
1804 | ||
1805 | /* Register new MAC in pHYP */ | |
00aaea2f JBT |
1806 | if (port->state == EHEA_PORT_UP) { |
1807 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1808 | if (ret) | |
1809 | goto out_upregs; | |
1810 | } | |
7a291083 JBT |
1811 | |
1812 | ret = 0; | |
21eee2dd TK |
1813 | |
1814 | out_upregs: | |
1815 | ehea_update_bcmc_registrations(); | |
7a291083 | 1816 | out_free: |
3faf2693 | 1817 | free_page((unsigned long)cb0); |
7a291083 JBT |
1818 | out: |
1819 | return ret; | |
1820 | } | |
1821 | ||
1822 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1823 | { | |
7674a588 TK |
1824 | if (hret == H_AUTHORITY) |
1825 | ehea_info("Hypervisor denied %sabling promiscuous mode", | |
1826 | enable == 1 ? "en" : "dis"); | |
1827 | else | |
1828 | ehea_error("failed %sabling promiscuous mode", | |
1829 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1830 | } |
1831 | ||
1832 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1833 | { | |
1834 | struct ehea_port *port = netdev_priv(dev); | |
1835 | struct hcp_ehea_port_cb7 *cb7; | |
1836 | u64 hret; | |
1837 | ||
1838 | if ((enable && port->promisc) || (!enable && !port->promisc)) | |
1839 | return; | |
1840 | ||
3faf2693 | 1841 | cb7 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 JBT |
1842 | if (!cb7) { |
1843 | ehea_error("no mem for cb7"); | |
1844 | goto out; | |
1845 | } | |
1846 | ||
1847 | /* Modify Pxs_DUCQPN in CB7 */ | |
1848 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1849 | ||
1850 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1851 | port->logical_port_id, | |
1852 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1853 | if (hret) { | |
1854 | ehea_promiscuous_error(hret, enable); | |
1855 | goto out; | |
1856 | } | |
1857 | ||
1858 | port->promisc = enable; | |
1859 | out: | |
3faf2693 | 1860 | free_page((unsigned long)cb7); |
7a291083 JBT |
1861 | return; |
1862 | } | |
1863 | ||
1864 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1865 | u32 hcallid) | |
1866 | { | |
1867 | u64 hret; | |
1868 | u8 reg_type; | |
1869 | ||
1870 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1871 | | EHEA_BCMC_UNTAGGED; | |
1872 | ||
1873 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1874 | port->logical_port_id, | |
1875 | reg_type, mc_mac_addr, 0, hcallid); | |
1876 | if (hret) | |
1877 | goto out; | |
1878 | ||
1879 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1880 | | EHEA_BCMC_VLANID_ALL; | |
1881 | ||
1882 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1883 | port->logical_port_id, | |
1884 | reg_type, mc_mac_addr, 0, hcallid); | |
1885 | out: | |
1886 | return hret; | |
1887 | } | |
1888 | ||
1889 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1890 | { | |
1891 | struct ehea_port *port = netdev_priv(dev); | |
1892 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1893 | struct list_head *pos; | |
1894 | struct list_head *temp; | |
1895 | int ret = 0; | |
1896 | u64 hret; | |
1897 | ||
1898 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1899 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1900 | ||
1901 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1902 | H_DEREG_BCMC); | |
1903 | if (hret) { | |
1904 | ehea_error("failed deregistering mcast MAC"); | |
1905 | ret = -EIO; | |
1906 | } | |
1907 | ||
1908 | list_del(pos); | |
1909 | kfree(mc_entry); | |
1910 | } | |
1911 | return ret; | |
1912 | } | |
1913 | ||
1914 | static void ehea_allmulti(struct net_device *dev, int enable) | |
1915 | { | |
1916 | struct ehea_port *port = netdev_priv(dev); | |
1917 | u64 hret; | |
1918 | ||
1919 | if (!port->allmulti) { | |
1920 | if (enable) { | |
1921 | /* Enable ALLMULTI */ | |
1922 | ehea_drop_multicast_list(dev); | |
1923 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
1924 | if (!hret) | |
1925 | port->allmulti = 1; | |
1926 | else | |
1927 | ehea_error("failed enabling IFF_ALLMULTI"); | |
1928 | } | |
1929 | } else | |
1930 | if (!enable) { | |
1931 | /* Disable ALLMULTI */ | |
1932 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
1933 | if (!hret) | |
1934 | port->allmulti = 0; | |
1935 | else | |
1936 | ehea_error("failed disabling IFF_ALLMULTI"); | |
1937 | } | |
1938 | } | |
1939 | ||
508d2b5d | 1940 | static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) |
7a291083 JBT |
1941 | { |
1942 | struct ehea_mc_list *ehea_mcl_entry; | |
1943 | u64 hret; | |
1944 | ||
1e1675cc | 1945 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
7a291083 JBT |
1946 | if (!ehea_mcl_entry) { |
1947 | ehea_error("no mem for mcl_entry"); | |
1948 | return; | |
1949 | } | |
1950 | ||
1951 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
1952 | ||
1953 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
1954 | ||
1955 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
1956 | H_REG_BCMC); | |
1957 | if (!hret) | |
1958 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
1959 | else { | |
1960 | ehea_error("failed registering mcast MAC"); | |
1961 | kfree(ehea_mcl_entry); | |
1962 | } | |
1963 | } | |
1964 | ||
1965 | static void ehea_set_multicast_list(struct net_device *dev) | |
1966 | { | |
1967 | struct ehea_port *port = netdev_priv(dev); | |
1968 | struct dev_mc_list *k_mcl_entry; | |
1969 | int ret, i; | |
1970 | ||
1971 | if (dev->flags & IFF_PROMISC) { | |
1972 | ehea_promiscuous(dev, 1); | |
1973 | return; | |
1974 | } | |
1975 | ehea_promiscuous(dev, 0); | |
1976 | ||
1977 | if (dev->flags & IFF_ALLMULTI) { | |
1978 | ehea_allmulti(dev, 1); | |
21eee2dd | 1979 | goto out; |
7a291083 JBT |
1980 | } |
1981 | ehea_allmulti(dev, 0); | |
1982 | ||
1983 | if (dev->mc_count) { | |
1984 | ret = ehea_drop_multicast_list(dev); | |
1985 | if (ret) { | |
1986 | /* Dropping the current multicast list failed. | |
1987 | * Enabling ALL_MULTI is the best we can do. | |
1988 | */ | |
1989 | ehea_allmulti(dev, 1); | |
1990 | } | |
1991 | ||
1992 | if (dev->mc_count > port->adapter->max_mc_mac) { | |
a1c5a893 | 1993 | ehea_info("Mcast registration limit reached (0x%llx). " |
7a291083 JBT |
1994 | "Use ALLMULTI!", |
1995 | port->adapter->max_mc_mac); | |
1996 | goto out; | |
1997 | } | |
1998 | ||
508d2b5d DM |
1999 | for (i = 0, k_mcl_entry = dev->mc_list; i < dev->mc_count; i++, |
2000 | k_mcl_entry = k_mcl_entry->next) | |
7a291083 | 2001 | ehea_add_multicast_entry(port, k_mcl_entry->dmi_addr); |
508d2b5d | 2002 | |
7a291083 JBT |
2003 | } |
2004 | out: | |
21eee2dd | 2005 | ehea_update_bcmc_registrations(); |
7a291083 JBT |
2006 | return; |
2007 | } | |
2008 | ||
2009 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
2010 | { | |
2011 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
2012 | return -EINVAL; | |
2013 | dev->mtu = new_mtu; | |
2014 | return 0; | |
2015 | } | |
2016 | ||
2017 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
2018 | struct ehea_swqe *swqe, u32 lkey) | |
2019 | { | |
2020 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 2021 | const struct iphdr *iph = ip_hdr(skb); |
d1d25aab | 2022 | |
7a291083 JBT |
2023 | /* IPv4 */ |
2024 | swqe->tx_control |= EHEA_SWQE_CRC | |
2025 | | EHEA_SWQE_IP_CHECKSUM | |
2026 | | EHEA_SWQE_TCP_CHECKSUM | |
2027 | | EHEA_SWQE_IMM_DATA_PRESENT | |
2028 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2029 | ||
2030 | write_ip_start_end(swqe, skb); | |
2031 | ||
eddc9ec5 | 2032 | if (iph->protocol == IPPROTO_UDP) { |
d1d25aab JBT |
2033 | if ((iph->frag_off & IP_MF) |
2034 | || (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
2035 | /* IP fragment, so don't change cs */ |
2036 | swqe->tx_control &= ~EHEA_SWQE_TCP_CHECKSUM; | |
2037 | else | |
2038 | write_udp_offset_end(swqe, skb); | |
eddc9ec5 | 2039 | } else if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
2040 | write_tcp_offset_end(swqe, skb); |
2041 | } | |
2042 | ||
2043 | /* icmp (big data) and ip segmentation packets (all other ip | |
2044 | packets) do not require any special handling */ | |
2045 | ||
2046 | } else { | |
2047 | /* Other Ethernet Protocol */ | |
2048 | swqe->tx_control |= EHEA_SWQE_CRC | |
2049 | | EHEA_SWQE_IMM_DATA_PRESENT | |
2050 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2051 | } | |
2052 | ||
2053 | write_swqe2_data(skb, dev, swqe, lkey); | |
2054 | } | |
2055 | ||
2056 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
2057 | struct ehea_swqe *swqe) | |
2058 | { | |
2059 | int nfrags = skb_shinfo(skb)->nr_frags; | |
2060 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; | |
2061 | skb_frag_t *frag; | |
2062 | int i; | |
2063 | ||
2064 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 2065 | const struct iphdr *iph = ip_hdr(skb); |
d1d25aab | 2066 | |
7a291083 JBT |
2067 | /* IPv4 */ |
2068 | write_ip_start_end(swqe, skb); | |
2069 | ||
eddc9ec5 | 2070 | if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
2071 | swqe->tx_control |= EHEA_SWQE_CRC |
2072 | | EHEA_SWQE_IP_CHECKSUM | |
2073 | | EHEA_SWQE_TCP_CHECKSUM | |
2074 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2075 | ||
2076 | write_tcp_offset_end(swqe, skb); | |
2077 | ||
eddc9ec5 | 2078 | } else if (iph->protocol == IPPROTO_UDP) { |
d1d25aab JBT |
2079 | if ((iph->frag_off & IP_MF) |
2080 | || (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
2081 | /* IP fragment, so don't change cs */ |
2082 | swqe->tx_control |= EHEA_SWQE_CRC | |
2083 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2084 | else { | |
2085 | swqe->tx_control |= EHEA_SWQE_CRC | |
2086 | | EHEA_SWQE_IP_CHECKSUM | |
2087 | | EHEA_SWQE_TCP_CHECKSUM | |
2088 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2089 | ||
2090 | write_udp_offset_end(swqe, skb); | |
2091 | } | |
2092 | } else { | |
2093 | /* icmp (big data) and | |
2094 | ip segmentation packets (all other ip packets) */ | |
2095 | swqe->tx_control |= EHEA_SWQE_CRC | |
2096 | | EHEA_SWQE_IP_CHECKSUM | |
2097 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2098 | } | |
2099 | } else { | |
2100 | /* Other Ethernet Protocol */ | |
2101 | swqe->tx_control |= EHEA_SWQE_CRC | EHEA_SWQE_IMM_DATA_PRESENT; | |
2102 | } | |
2103 | /* copy (immediate) data */ | |
2104 | if (nfrags == 0) { | |
2105 | /* data is in a single piece */ | |
d626f62b | 2106 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
7a291083 JBT |
2107 | } else { |
2108 | /* first copy data from the skb->data buffer ... */ | |
d626f62b ACM |
2109 | skb_copy_from_linear_data(skb, imm_data, |
2110 | skb->len - skb->data_len); | |
7a291083 JBT |
2111 | imm_data += skb->len - skb->data_len; |
2112 | ||
2113 | /* ... then copy data from the fragments */ | |
2114 | for (i = 0; i < nfrags; i++) { | |
2115 | frag = &skb_shinfo(skb)->frags[i]; | |
2116 | memcpy(imm_data, | |
2117 | page_address(frag->page) + frag->page_offset, | |
2118 | frag->size); | |
2119 | imm_data += frag->size; | |
2120 | } | |
2121 | } | |
2122 | swqe->immediate_data_length = skb->len; | |
2123 | dev_kfree_skb(skb); | |
2124 | } | |
2125 | ||
18604c54 JBT |
2126 | static inline int ehea_hash_skb(struct sk_buff *skb, int num_qps) |
2127 | { | |
2128 | struct tcphdr *tcp; | |
2129 | u32 tmp; | |
2130 | ||
2131 | if ((skb->protocol == htons(ETH_P_IP)) && | |
88ca2d07 | 2132 | (ip_hdr(skb)->protocol == IPPROTO_TCP)) { |
508d2b5d DM |
2133 | tcp = (struct tcphdr *)(skb_network_header(skb) + |
2134 | (ip_hdr(skb)->ihl * 4)); | |
18604c54 | 2135 | tmp = (tcp->source + (tcp->dest << 16)) % 31; |
88ca2d07 | 2136 | tmp += ip_hdr(skb)->daddr % 31; |
18604c54 | 2137 | return tmp % num_qps; |
508d2b5d | 2138 | } else |
18604c54 JBT |
2139 | return 0; |
2140 | } | |
2141 | ||
7a291083 JBT |
2142 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) |
2143 | { | |
2144 | struct ehea_port *port = netdev_priv(dev); | |
2145 | struct ehea_swqe *swqe; | |
2146 | unsigned long flags; | |
2147 | u32 lkey; | |
2148 | int swqe_index; | |
18604c54 JBT |
2149 | struct ehea_port_res *pr; |
2150 | ||
2151 | pr = &port->port_res[ehea_hash_skb(skb, port->num_tx_qps)]; | |
2152 | ||
18604c54 JBT |
2153 | if (!spin_trylock(&pr->xmit_lock)) |
2154 | return NETDEV_TX_BUSY; | |
2155 | ||
2156 | if (pr->queue_stopped) { | |
2157 | spin_unlock(&pr->xmit_lock); | |
2158 | return NETDEV_TX_BUSY; | |
2159 | } | |
7a291083 JBT |
2160 | |
2161 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
2162 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
2163 | atomic_dec(&pr->swqe_avail); | |
2164 | ||
2165 | if (skb->len <= SWQE3_MAX_IMM) { | |
2166 | u32 sig_iv = port->sig_comp_iv; | |
2167 | u32 swqe_num = pr->swqe_id_counter; | |
2168 | ehea_xmit3(skb, dev, swqe); | |
2169 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
2170 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
2171 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
2172 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
2173 | sig_iv); | |
2174 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
2175 | pr->swqe_ll_count = 0; | |
2176 | } else | |
2177 | pr->swqe_ll_count += 1; | |
2178 | } else { | |
2179 | swqe->wr_id = | |
2180 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
2181 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 2182 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
2183 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
2184 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
2185 | ||
2186 | pr->sq_skba.index++; | |
2187 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
2188 | ||
2189 | lkey = pr->send_mr.lkey; | |
2190 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 2191 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
2192 | } |
2193 | pr->swqe_id_counter += 1; | |
2194 | ||
2195 | if (port->vgrp && vlan_tx_tag_present(skb)) { | |
2196 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; | |
2197 | swqe->vlan_tag = vlan_tx_tag_get(skb); | |
2198 | } | |
2199 | ||
2200 | if (netif_msg_tx_queued(port)) { | |
2201 | ehea_info("post swqe on QP %d", pr->qp->init_attr.qp_nr); | |
bff0a55f | 2202 | ehea_dump(swqe, 512, "swqe"); |
7a291083 JBT |
2203 | } |
2204 | ||
2c69448b JBT |
2205 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
2206 | netif_stop_queue(dev); | |
2207 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2208 | } | |
44c82152 | 2209 | |
7a291083 | 2210 | ehea_post_swqe(pr->qp, swqe); |
7393b87c | 2211 | pr->tx_packets++; |
7a291083 JBT |
2212 | |
2213 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
2214 | spin_lock_irqsave(&pr->netif_queue, flags); | |
2215 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
acbddb59 | 2216 | pr->p_stats.queue_stopped++; |
7a291083 JBT |
2217 | netif_stop_queue(dev); |
2218 | pr->queue_stopped = 1; | |
2219 | } | |
2220 | spin_unlock_irqrestore(&pr->netif_queue, flags); | |
2221 | } | |
2222 | dev->trans_start = jiffies; | |
2223 | spin_unlock(&pr->xmit_lock); | |
2c69448b | 2224 | |
7a291083 JBT |
2225 | return NETDEV_TX_OK; |
2226 | } | |
2227 | ||
2228 | static void ehea_vlan_rx_register(struct net_device *dev, | |
2229 | struct vlan_group *grp) | |
2230 | { | |
2231 | struct ehea_port *port = netdev_priv(dev); | |
2232 | struct ehea_adapter *adapter = port->adapter; | |
2233 | struct hcp_ehea_port_cb1 *cb1; | |
2234 | u64 hret; | |
2235 | ||
2236 | port->vgrp = grp; | |
2237 | ||
3faf2693 | 2238 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2239 | if (!cb1) { |
2240 | ehea_error("no mem for cb1"); | |
2241 | goto out; | |
2242 | } | |
2243 | ||
7a291083 JBT |
2244 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, |
2245 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2246 | if (hret != H_SUCCESS) | |
2247 | ehea_error("modify_ehea_port failed"); | |
2248 | ||
3faf2693 | 2249 | free_page((unsigned long)cb1); |
7a291083 JBT |
2250 | out: |
2251 | return; | |
2252 | } | |
2253 | ||
2254 | static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) | |
2255 | { | |
2256 | struct ehea_port *port = netdev_priv(dev); | |
2257 | struct ehea_adapter *adapter = port->adapter; | |
2258 | struct hcp_ehea_port_cb1 *cb1; | |
2259 | int index; | |
2260 | u64 hret; | |
2261 | ||
3faf2693 | 2262 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2263 | if (!cb1) { |
2264 | ehea_error("no mem for cb1"); | |
2265 | goto out; | |
2266 | } | |
2267 | ||
2268 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2269 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2270 | if (hret != H_SUCCESS) { | |
2271 | ehea_error("query_ehea_port failed"); | |
2272 | goto out; | |
2273 | } | |
2274 | ||
2275 | index = (vid / 64); | |
dec590c1 | 2276 | cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2277 | |
2278 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2279 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2280 | if (hret != H_SUCCESS) | |
2281 | ehea_error("modify_ehea_port failed"); | |
2282 | out: | |
3faf2693 | 2283 | free_page((unsigned long)cb1); |
7a291083 JBT |
2284 | return; |
2285 | } | |
2286 | ||
2287 | static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
2288 | { | |
2289 | struct ehea_port *port = netdev_priv(dev); | |
2290 | struct ehea_adapter *adapter = port->adapter; | |
2291 | struct hcp_ehea_port_cb1 *cb1; | |
2292 | int index; | |
2293 | u64 hret; | |
2294 | ||
5c15bdec | 2295 | vlan_group_set_device(port->vgrp, vid, NULL); |
7a291083 | 2296 | |
3faf2693 | 2297 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2298 | if (!cb1) { |
2299 | ehea_error("no mem for cb1"); | |
2300 | goto out; | |
2301 | } | |
2302 | ||
2303 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2304 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2305 | if (hret != H_SUCCESS) { | |
2306 | ehea_error("query_ehea_port failed"); | |
2307 | goto out; | |
2308 | } | |
2309 | ||
2310 | index = (vid / 64); | |
dec590c1 | 2311 | cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2312 | |
2313 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2314 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2315 | if (hret != H_SUCCESS) | |
2316 | ehea_error("modify_ehea_port failed"); | |
2317 | out: | |
3faf2693 | 2318 | free_page((unsigned long)cb1); |
7a291083 JBT |
2319 | return; |
2320 | } | |
2321 | ||
2322 | int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) | |
2323 | { | |
2324 | int ret = -EIO; | |
2325 | u64 hret; | |
2326 | u16 dummy16 = 0; | |
2327 | u64 dummy64 = 0; | |
508d2b5d | 2328 | struct hcp_modify_qp_cb0 *cb0; |
7a291083 | 2329 | |
3faf2693 | 2330 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2331 | if (!cb0) { |
2332 | ret = -ENOMEM; | |
2333 | goto out; | |
2334 | } | |
2335 | ||
2336 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2337 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2338 | if (hret != H_SUCCESS) { | |
2339 | ehea_error("query_ehea_qp failed (1)"); | |
2340 | goto out; | |
2341 | } | |
2342 | ||
2343 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2344 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2345 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2346 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2347 | if (hret != H_SUCCESS) { | |
2348 | ehea_error("modify_ehea_qp failed (1)"); | |
2349 | goto out; | |
2350 | } | |
2351 | ||
2352 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2353 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2354 | if (hret != H_SUCCESS) { | |
2355 | ehea_error("query_ehea_qp failed (2)"); | |
2356 | goto out; | |
2357 | } | |
2358 | ||
2359 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2360 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2361 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2362 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2363 | if (hret != H_SUCCESS) { | |
2364 | ehea_error("modify_ehea_qp failed (2)"); | |
2365 | goto out; | |
2366 | } | |
2367 | ||
2368 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2369 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2370 | if (hret != H_SUCCESS) { | |
2371 | ehea_error("query_ehea_qp failed (3)"); | |
2372 | goto out; | |
2373 | } | |
2374 | ||
2375 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2376 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2377 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2378 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2379 | if (hret != H_SUCCESS) { | |
2380 | ehea_error("modify_ehea_qp failed (3)"); | |
2381 | goto out; | |
2382 | } | |
2383 | ||
2384 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2385 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2386 | if (hret != H_SUCCESS) { | |
2387 | ehea_error("query_ehea_qp failed (4)"); | |
2388 | goto out; | |
2389 | } | |
2390 | ||
2391 | ret = 0; | |
2392 | out: | |
3faf2693 | 2393 | free_page((unsigned long)cb0); |
7a291083 JBT |
2394 | return ret; |
2395 | } | |
2396 | ||
2397 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps, | |
2398 | int add_tx_qps) | |
2399 | { | |
2400 | int ret, i; | |
2401 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2402 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2403 | ||
2404 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2405 | EHEA_MAX_ENTRIES_EQ, 1); | |
2406 | if (!port->qp_eq) { | |
2407 | ret = -EINVAL; | |
2408 | ehea_error("ehea_create_eq failed (qp_eq)"); | |
2409 | goto out_kill_eq; | |
2410 | } | |
2411 | ||
2412 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2413 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2414 | pr_cfg.max_entries_sq = sq_entries; |
2415 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2416 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2417 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2418 | ||
2419 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2420 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2421 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2422 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2423 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2424 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2425 | ||
2426 | for (i = 0; i < def_qps; i++) { | |
2427 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2428 | if (ret) | |
2429 | goto out_clean_pr; | |
2430 | } | |
2431 | for (i = def_qps; i < def_qps + add_tx_qps; i++) { | |
2432 | ret = ehea_init_port_res(port, &port->port_res[i], | |
2433 | &pr_cfg_small_rx, i); | |
2434 | if (ret) | |
2435 | goto out_clean_pr; | |
2436 | } | |
2437 | ||
2438 | return 0; | |
2439 | ||
2440 | out_clean_pr: | |
2441 | while (--i >= 0) | |
2442 | ehea_clean_portres(port, &port->port_res[i]); | |
2443 | ||
2444 | out_kill_eq: | |
2445 | ehea_destroy_eq(port->qp_eq); | |
2446 | return ret; | |
2447 | } | |
2448 | ||
2449 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2450 | { | |
2451 | int ret = 0; | |
2452 | int i; | |
2453 | ||
508d2b5d | 2454 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) |
7a291083 JBT |
2455 | ret |= ehea_clean_portres(port, &port->port_res[i]); |
2456 | ||
2457 | ret |= ehea_destroy_eq(port->qp_eq); | |
2458 | ||
2459 | return ret; | |
2460 | } | |
2461 | ||
35cf2e2e | 2462 | static void ehea_remove_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2463 | { |
35cf2e2e TK |
2464 | if (adapter->active_ports) |
2465 | return; | |
1211bb6d TK |
2466 | |
2467 | ehea_rem_mr(&adapter->mr); | |
2468 | } | |
2469 | ||
35cf2e2e | 2470 | static int ehea_add_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2471 | { |
35cf2e2e TK |
2472 | if (adapter->active_ports) |
2473 | return 0; | |
1211bb6d TK |
2474 | |
2475 | return ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2476 | } | |
2477 | ||
7a291083 JBT |
2478 | static int ehea_up(struct net_device *dev) |
2479 | { | |
2480 | int ret, i; | |
2481 | struct ehea_port *port = netdev_priv(dev); | |
7a291083 JBT |
2482 | |
2483 | if (port->state == EHEA_PORT_UP) | |
2484 | return 0; | |
2485 | ||
2486 | ret = ehea_port_res_setup(port, port->num_def_qps, | |
2487 | port->num_add_tx_qps); | |
2488 | if (ret) { | |
2489 | ehea_error("port_res_failed"); | |
2490 | goto out; | |
2491 | } | |
2492 | ||
2493 | /* Set default QP for this port */ | |
2494 | ret = ehea_configure_port(port); | |
2495 | if (ret) { | |
2496 | ehea_error("ehea_configure_port failed. ret:%d", ret); | |
2497 | goto out_clean_pr; | |
2498 | } | |
2499 | ||
7a291083 JBT |
2500 | ret = ehea_reg_interrupts(dev); |
2501 | if (ret) { | |
f9e29228 TK |
2502 | ehea_error("reg_interrupts failed. ret:%d", ret); |
2503 | goto out_clean_pr; | |
7a291083 JBT |
2504 | } |
2505 | ||
508d2b5d | 2506 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { |
7a291083 JBT |
2507 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); |
2508 | if (ret) { | |
2509 | ehea_error("activate_qp failed"); | |
2510 | goto out_free_irqs; | |
2511 | } | |
2512 | } | |
2513 | ||
508d2b5d | 2514 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2515 | ret = ehea_fill_port_res(&port->port_res[i]); |
2516 | if (ret) { | |
2517 | ehea_error("out_free_irqs"); | |
2518 | goto out_free_irqs; | |
2519 | } | |
2520 | } | |
2521 | ||
21eee2dd TK |
2522 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); |
2523 | if (ret) { | |
2524 | ret = -EIO; | |
2525 | goto out_free_irqs; | |
2526 | } | |
2527 | ||
7a291083 | 2528 | port->state = EHEA_PORT_UP; |
21eee2dd TK |
2529 | |
2530 | ret = 0; | |
7a291083 JBT |
2531 | goto out; |
2532 | ||
2533 | out_free_irqs: | |
2534 | ehea_free_interrupts(dev); | |
2535 | ||
7a291083 JBT |
2536 | out_clean_pr: |
2537 | ehea_clean_all_portres(port); | |
2538 | out: | |
44c82152 TK |
2539 | if (ret) |
2540 | ehea_info("Failed starting %s. ret=%i", dev->name, ret); | |
2541 | ||
21eee2dd | 2542 | ehea_update_bcmc_registrations(); |
21eee2dd | 2543 | ehea_update_firmware_handles(); |
21eee2dd | 2544 | |
7a291083 JBT |
2545 | return ret; |
2546 | } | |
2547 | ||
bea3348e SH |
2548 | static void port_napi_disable(struct ehea_port *port) |
2549 | { | |
2550 | int i; | |
2551 | ||
0173b793 | 2552 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) |
bea3348e SH |
2553 | napi_disable(&port->port_res[i].napi); |
2554 | } | |
2555 | ||
2556 | static void port_napi_enable(struct ehea_port *port) | |
2557 | { | |
2558 | int i; | |
2559 | ||
0173b793 | 2560 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) |
bea3348e SH |
2561 | napi_enable(&port->port_res[i].napi); |
2562 | } | |
2563 | ||
7a291083 JBT |
2564 | static int ehea_open(struct net_device *dev) |
2565 | { | |
2566 | int ret; | |
2567 | struct ehea_port *port = netdev_priv(dev); | |
2568 | ||
a5af6ad3 | 2569 | mutex_lock(&port->port_lock); |
7a291083 JBT |
2570 | |
2571 | if (netif_msg_ifup(port)) | |
2572 | ehea_info("enabling port %s", dev->name); | |
2573 | ||
2574 | ret = ehea_up(dev); | |
bea3348e SH |
2575 | if (!ret) { |
2576 | port_napi_enable(port); | |
7a291083 | 2577 | netif_start_queue(dev); |
bea3348e | 2578 | } |
7a291083 | 2579 | |
a5af6ad3 | 2580 | mutex_unlock(&port->port_lock); |
7a291083 JBT |
2581 | |
2582 | return ret; | |
2583 | } | |
2584 | ||
2585 | static int ehea_down(struct net_device *dev) | |
2586 | { | |
bea3348e | 2587 | int ret; |
7a291083 JBT |
2588 | struct ehea_port *port = netdev_priv(dev); |
2589 | ||
2590 | if (port->state == EHEA_PORT_DOWN) | |
2591 | return 0; | |
2592 | ||
2593 | ehea_drop_multicast_list(dev); | |
21eee2dd TK |
2594 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); |
2595 | ||
7a291083 JBT |
2596 | ehea_free_interrupts(dev); |
2597 | ||
7a291083 | 2598 | port->state = EHEA_PORT_DOWN; |
44c82152 | 2599 | |
21eee2dd | 2600 | ehea_update_bcmc_registrations(); |
21eee2dd | 2601 | |
44c82152 TK |
2602 | ret = ehea_clean_all_portres(port); |
2603 | if (ret) | |
2604 | ehea_info("Failed freeing resources for %s. ret=%i", | |
2605 | dev->name, ret); | |
2606 | ||
21eee2dd | 2607 | ehea_update_firmware_handles(); |
21eee2dd | 2608 | |
7a291083 JBT |
2609 | return ret; |
2610 | } | |
2611 | ||
2612 | static int ehea_stop(struct net_device *dev) | |
2613 | { | |
2614 | int ret; | |
2615 | struct ehea_port *port = netdev_priv(dev); | |
2616 | ||
2617 | if (netif_msg_ifdown(port)) | |
2618 | ehea_info("disabling port %s", dev->name); | |
2619 | ||
2f69ae01 | 2620 | set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
4bb073c0 | 2621 | cancel_work_sync(&port->reset_task); |
a5af6ad3 | 2622 | mutex_lock(&port->port_lock); |
7a291083 | 2623 | netif_stop_queue(dev); |
0173b793 | 2624 | port_napi_disable(port); |
7a291083 | 2625 | ret = ehea_down(dev); |
a5af6ad3 | 2626 | mutex_unlock(&port->port_lock); |
2f69ae01 | 2627 | clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
7a291083 JBT |
2628 | return ret; |
2629 | } | |
2630 | ||
22559c5d | 2631 | static void ehea_purge_sq(struct ehea_qp *orig_qp) |
2c69448b JBT |
2632 | { |
2633 | struct ehea_qp qp = *orig_qp; | |
2634 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2635 | struct ehea_swqe *swqe; | |
2636 | int wqe_index; | |
2637 | int i; | |
2638 | ||
2639 | for (i = 0; i < init_attr->act_nr_send_wqes; i++) { | |
2640 | swqe = ehea_get_swqe(&qp, &wqe_index); | |
2641 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2642 | } | |
2643 | } | |
2644 | ||
22559c5d | 2645 | static void ehea_flush_sq(struct ehea_port *port) |
44fb3126 TK |
2646 | { |
2647 | int i; | |
2648 | ||
2649 | for (i = 0; i < port->num_def_qps + port->num_add_tx_qps; i++) { | |
2650 | struct ehea_port_res *pr = &port->port_res[i]; | |
2651 | int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count; | |
2652 | int k = 0; | |
2653 | while (atomic_read(&pr->swqe_avail) < swqe_max) { | |
2654 | msleep(5); | |
2655 | if (++k == 20) | |
2656 | break; | |
2657 | } | |
2658 | } | |
2659 | } | |
2660 | ||
2c69448b JBT |
2661 | int ehea_stop_qps(struct net_device *dev) |
2662 | { | |
2663 | struct ehea_port *port = netdev_priv(dev); | |
2664 | struct ehea_adapter *adapter = port->adapter; | |
508d2b5d | 2665 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2666 | int ret = -EIO; |
2667 | int dret; | |
2668 | int i; | |
2669 | u64 hret; | |
2670 | u64 dummy64 = 0; | |
2671 | u16 dummy16 = 0; | |
2672 | ||
3faf2693 | 2673 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2674 | if (!cb0) { |
2675 | ret = -ENOMEM; | |
2676 | goto out; | |
2677 | } | |
2678 | ||
2679 | for (i = 0; i < (port->num_def_qps + port->num_add_tx_qps); i++) { | |
2680 | struct ehea_port_res *pr = &port->port_res[i]; | |
2681 | struct ehea_qp *qp = pr->qp; | |
2682 | ||
2683 | /* Purge send queue */ | |
2684 | ehea_purge_sq(qp); | |
2685 | ||
2686 | /* Disable queue pair */ | |
2687 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2688 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2689 | cb0); | |
2690 | if (hret != H_SUCCESS) { | |
2691 | ehea_error("query_ehea_qp failed (1)"); | |
2692 | goto out; | |
2693 | } | |
2694 | ||
2695 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2696 | cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED; | |
2697 | ||
2698 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2699 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2700 | 1), cb0, &dummy64, | |
2701 | &dummy64, &dummy16, &dummy16); | |
2702 | if (hret != H_SUCCESS) { | |
2703 | ehea_error("modify_ehea_qp failed (1)"); | |
2704 | goto out; | |
2705 | } | |
2706 | ||
2707 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2708 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2709 | cb0); | |
2710 | if (hret != H_SUCCESS) { | |
2711 | ehea_error("query_ehea_qp failed (2)"); | |
2712 | goto out; | |
2713 | } | |
2714 | ||
2715 | /* deregister shared memory regions */ | |
2716 | dret = ehea_rem_smrs(pr); | |
2717 | if (dret) { | |
2718 | ehea_error("unreg shared memory region failed"); | |
2719 | goto out; | |
2720 | } | |
2721 | } | |
2722 | ||
2723 | ret = 0; | |
2724 | out: | |
3faf2693 | 2725 | free_page((unsigned long)cb0); |
2c69448b JBT |
2726 | |
2727 | return ret; | |
2728 | } | |
2729 | ||
508d2b5d | 2730 | void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr) |
2c69448b JBT |
2731 | { |
2732 | struct ehea_qp qp = *orig_qp; | |
2733 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2734 | struct ehea_rwqe *rwqe; | |
2735 | struct sk_buff **skba_rq2 = pr->rq2_skba.arr; | |
2736 | struct sk_buff **skba_rq3 = pr->rq3_skba.arr; | |
2737 | struct sk_buff *skb; | |
2738 | u32 lkey = pr->recv_mr.lkey; | |
2739 | ||
2740 | ||
2741 | int i; | |
2742 | int index; | |
2743 | ||
2744 | for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) { | |
2745 | rwqe = ehea_get_next_rwqe(&qp, 2); | |
2746 | rwqe->sg_list[0].l_key = lkey; | |
2747 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2748 | skb = skba_rq2[index]; | |
2749 | if (skb) | |
2750 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2751 | } | |
2752 | ||
2753 | for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) { | |
2754 | rwqe = ehea_get_next_rwqe(&qp, 3); | |
2755 | rwqe->sg_list[0].l_key = lkey; | |
2756 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2757 | skb = skba_rq3[index]; | |
2758 | if (skb) | |
2759 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2760 | } | |
2761 | } | |
2762 | ||
2763 | int ehea_restart_qps(struct net_device *dev) | |
2764 | { | |
2765 | struct ehea_port *port = netdev_priv(dev); | |
2766 | struct ehea_adapter *adapter = port->adapter; | |
2767 | int ret = 0; | |
2768 | int i; | |
2769 | ||
508d2b5d | 2770 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2771 | u64 hret; |
2772 | u64 dummy64 = 0; | |
2773 | u16 dummy16 = 0; | |
2774 | ||
3faf2693 | 2775 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2776 | if (!cb0) { |
2777 | ret = -ENOMEM; | |
2778 | goto out; | |
2779 | } | |
2780 | ||
2781 | for (i = 0; i < (port->num_def_qps + port->num_add_tx_qps); i++) { | |
2782 | struct ehea_port_res *pr = &port->port_res[i]; | |
2783 | struct ehea_qp *qp = pr->qp; | |
2784 | ||
2785 | ret = ehea_gen_smrs(pr); | |
2786 | if (ret) { | |
2787 | ehea_error("creation of shared memory regions failed"); | |
2788 | goto out; | |
2789 | } | |
2790 | ||
2791 | ehea_update_rqs(qp, pr); | |
2792 | ||
2793 | /* Enable queue pair */ | |
2794 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2795 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2796 | cb0); | |
2797 | if (hret != H_SUCCESS) { | |
2798 | ehea_error("query_ehea_qp failed (1)"); | |
2799 | goto out; | |
2800 | } | |
2801 | ||
2802 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2803 | cb0->qp_ctl_reg |= H_QP_CR_ENABLED; | |
2804 | ||
2805 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2806 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2807 | 1), cb0, &dummy64, | |
2808 | &dummy64, &dummy16, &dummy16); | |
2809 | if (hret != H_SUCCESS) { | |
2810 | ehea_error("modify_ehea_qp failed (1)"); | |
2811 | goto out; | |
2812 | } | |
2813 | ||
2814 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2815 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2816 | cb0); | |
2817 | if (hret != H_SUCCESS) { | |
2818 | ehea_error("query_ehea_qp failed (2)"); | |
2819 | goto out; | |
2820 | } | |
2821 | ||
2822 | /* refill entire queue */ | |
2823 | ehea_refill_rq1(pr, pr->rq1_skba.index, 0); | |
2824 | ehea_refill_rq2(pr, 0); | |
2825 | ehea_refill_rq3(pr, 0); | |
2826 | } | |
2827 | out: | |
3faf2693 | 2828 | free_page((unsigned long)cb0); |
2c69448b JBT |
2829 | |
2830 | return ret; | |
2831 | } | |
2832 | ||
c4028958 | 2833 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2834 | { |
2835 | int ret; | |
c4028958 DH |
2836 | struct ehea_port *port = |
2837 | container_of(work, struct ehea_port, reset_task); | |
2838 | struct net_device *dev = port->netdev; | |
7a291083 JBT |
2839 | |
2840 | port->resets++; | |
a5af6ad3 | 2841 | mutex_lock(&port->port_lock); |
7a291083 | 2842 | netif_stop_queue(dev); |
bea3348e SH |
2843 | |
2844 | port_napi_disable(port); | |
7a291083 | 2845 | |
44c82152 | 2846 | ehea_down(dev); |
7a291083 JBT |
2847 | |
2848 | ret = ehea_up(dev); | |
44c82152 | 2849 | if (ret) |
7a291083 | 2850 | goto out; |
7a291083 | 2851 | |
2c69448b JBT |
2852 | ehea_set_multicast_list(dev); |
2853 | ||
7a291083 JBT |
2854 | if (netif_msg_timer(port)) |
2855 | ehea_info("Device %s resetted successfully", dev->name); | |
2856 | ||
bea3348e SH |
2857 | port_napi_enable(port); |
2858 | ||
7a291083 JBT |
2859 | netif_wake_queue(dev); |
2860 | out: | |
a5af6ad3 | 2861 | mutex_unlock(&port->port_lock); |
7a291083 JBT |
2862 | return; |
2863 | } | |
2864 | ||
44c82152 TK |
2865 | static void ehea_rereg_mrs(struct work_struct *work) |
2866 | { | |
2867 | int ret, i; | |
2868 | struct ehea_adapter *adapter; | |
2869 | ||
06f89edf | 2870 | mutex_lock(&dlpar_mem_lock); |
d4f12daf | 2871 | ehea_info("LPAR memory changed - re-initializing driver"); |
44c82152 TK |
2872 | |
2873 | list_for_each_entry(adapter, &adapter_list, list) | |
2874 | if (adapter->active_ports) { | |
2875 | /* Shutdown all ports */ | |
2876 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2877 | struct ehea_port *port = adapter->port[i]; | |
a5af6ad3 | 2878 | struct net_device *dev; |
44c82152 | 2879 | |
a5af6ad3 DW |
2880 | if (!port) |
2881 | continue; | |
44c82152 | 2882 | |
a5af6ad3 DW |
2883 | dev = port->netdev; |
2884 | ||
2885 | if (dev->flags & IFF_UP) { | |
2886 | mutex_lock(&port->port_lock); | |
2887 | netif_stop_queue(dev); | |
df39e8ba | 2888 | ehea_flush_sq(port); |
a5af6ad3 DW |
2889 | ret = ehea_stop_qps(dev); |
2890 | if (ret) { | |
2891 | mutex_unlock(&port->port_lock); | |
2892 | goto out; | |
44c82152 | 2893 | } |
a5af6ad3 DW |
2894 | port_napi_disable(port); |
2895 | mutex_unlock(&port->port_lock); | |
44c82152 TK |
2896 | } |
2897 | } | |
2898 | ||
2899 | /* Unregister old memory region */ | |
2900 | ret = ehea_rem_mr(&adapter->mr); | |
2901 | if (ret) { | |
2902 | ehea_error("unregister MR failed - driver" | |
2903 | " inoperable!"); | |
2904 | goto out; | |
2905 | } | |
2906 | } | |
2907 | ||
44c82152 TK |
2908 | clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
2909 | ||
2910 | list_for_each_entry(adapter, &adapter_list, list) | |
2911 | if (adapter->active_ports) { | |
2912 | /* Register new memory region */ | |
2913 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2914 | if (ret) { | |
2915 | ehea_error("register MR failed - driver" | |
2916 | " inoperable!"); | |
2917 | goto out; | |
2918 | } | |
2919 | ||
2920 | /* Restart all ports */ | |
2921 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2922 | struct ehea_port *port = adapter->port[i]; | |
2923 | ||
2924 | if (port) { | |
2925 | struct net_device *dev = port->netdev; | |
2926 | ||
2927 | if (dev->flags & IFF_UP) { | |
a5af6ad3 | 2928 | mutex_lock(&port->port_lock); |
2c69448b JBT |
2929 | port_napi_enable(port); |
2930 | ret = ehea_restart_qps(dev); | |
2931 | if (!ret) | |
44c82152 | 2932 | netif_wake_queue(dev); |
a5af6ad3 | 2933 | mutex_unlock(&port->port_lock); |
44c82152 TK |
2934 | } |
2935 | } | |
2936 | } | |
2937 | } | |
68905eb4 | 2938 | ehea_info("re-initializing driver complete"); |
44c82152 | 2939 | out: |
68905eb4 | 2940 | mutex_unlock(&dlpar_mem_lock); |
44c82152 TK |
2941 | return; |
2942 | } | |
2943 | ||
7a291083 JBT |
2944 | static void ehea_tx_watchdog(struct net_device *dev) |
2945 | { | |
2946 | struct ehea_port *port = netdev_priv(dev); | |
2947 | ||
2c69448b JBT |
2948 | if (netif_carrier_ok(dev) && |
2949 | !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) | |
2f69ae01 | 2950 | ehea_schedule_port_reset(port); |
7a291083 JBT |
2951 | } |
2952 | ||
2953 | int ehea_sense_adapter_attr(struct ehea_adapter *adapter) | |
2954 | { | |
2955 | struct hcp_query_ehea *cb; | |
2956 | u64 hret; | |
2957 | int ret; | |
2958 | ||
3faf2693 | 2959 | cb = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2960 | if (!cb) { |
2961 | ret = -ENOMEM; | |
2962 | goto out; | |
2963 | } | |
2964 | ||
2965 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
2966 | ||
2967 | if (hret != H_SUCCESS) { | |
2968 | ret = -EIO; | |
2969 | goto out_herr; | |
2970 | } | |
2971 | ||
7a291083 JBT |
2972 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
2973 | ret = 0; | |
2974 | ||
2975 | out_herr: | |
3faf2693 | 2976 | free_page((unsigned long)cb); |
7a291083 JBT |
2977 | out: |
2978 | return ret; | |
2979 | } | |
2980 | ||
1acf2318 | 2981 | int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 2982 | { |
7a291083 | 2983 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
2984 | u64 hret; |
2985 | int ret = 0; | |
7a291083 | 2986 | |
1acf2318 | 2987 | *jumbo = 0; |
7a291083 | 2988 | |
1acf2318 | 2989 | /* (Try to) enable *jumbo frames */ |
3faf2693 | 2990 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2991 | if (!cb4) { |
2992 | ehea_error("no mem for cb4"); | |
1acf2318 JBT |
2993 | ret = -ENOMEM; |
2994 | goto out; | |
7a291083 | 2995 | } else { |
1acf2318 | 2996 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
2997 | port->logical_port_id, |
2998 | H_PORT_CB4, | |
2999 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
3000 | if (hret == H_SUCCESS) { |
3001 | if (cb4->jumbo_frame) | |
1acf2318 | 3002 | *jumbo = 1; |
9c750b7d TK |
3003 | else { |
3004 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
3005 | hret = ehea_h_modify_ehea_port(port->adapter-> |
3006 | handle, | |
9c750b7d | 3007 | port-> |
1acf2318 | 3008 | logical_port_id, |
9c750b7d TK |
3009 | H_PORT_CB4, |
3010 | H_PORT_CB4_JUMBO, | |
3011 | cb4); | |
3012 | if (hret == H_SUCCESS) | |
1acf2318 | 3013 | *jumbo = 1; |
9c750b7d | 3014 | } |
1acf2318 JBT |
3015 | } else |
3016 | ret = -EINVAL; | |
3017 | ||
3faf2693 | 3018 | free_page((unsigned long)cb4); |
7a291083 | 3019 | } |
1acf2318 JBT |
3020 | out: |
3021 | return ret; | |
3022 | } | |
3023 | ||
3024 | static ssize_t ehea_show_port_id(struct device *dev, | |
3025 | struct device_attribute *attr, char *buf) | |
3026 | { | |
3027 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
a8e34fda | 3028 | return sprintf(buf, "%d", port->logical_port_id); |
1acf2318 JBT |
3029 | } |
3030 | ||
3031 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
3032 | NULL); | |
3033 | ||
3034 | static void __devinit logical_port_release(struct device *dev) | |
3035 | { | |
3036 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
3037 | of_node_put(port->ofdev.node); | |
3038 | } | |
3039 | ||
3040 | static struct device *ehea_register_port(struct ehea_port *port, | |
3041 | struct device_node *dn) | |
3042 | { | |
3043 | int ret; | |
3044 | ||
3045 | port->ofdev.node = of_node_get(dn); | |
6b08f3ae | 3046 | port->ofdev.dev.parent = &port->adapter->ofdev->dev; |
d1dea38d | 3047 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 3048 | |
db1d7bf7 | 3049 | dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++); |
1acf2318 JBT |
3050 | port->ofdev.dev.release = logical_port_release; |
3051 | ||
3052 | ret = of_device_register(&port->ofdev); | |
3053 | if (ret) { | |
3054 | ehea_error("failed to register device. ret=%d", ret); | |
3055 | goto out; | |
3056 | } | |
3057 | ||
3058 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
d1d25aab | 3059 | if (ret) { |
1acf2318 JBT |
3060 | ehea_error("failed to register attributes, ret=%d", ret); |
3061 | goto out_unreg_of_dev; | |
3062 | } | |
e542aa6b | 3063 | |
1acf2318 JBT |
3064 | return &port->ofdev.dev; |
3065 | ||
3066 | out_unreg_of_dev: | |
3067 | of_device_unregister(&port->ofdev); | |
3068 | out: | |
3069 | return NULL; | |
3070 | } | |
3071 | ||
3072 | static void ehea_unregister_port(struct ehea_port *port) | |
3073 | { | |
3074 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
3075 | of_device_unregister(&port->ofdev); | |
3076 | } | |
3077 | ||
086c1b2c TK |
3078 | static const struct net_device_ops ehea_netdev_ops = { |
3079 | .ndo_open = ehea_open, | |
3080 | .ndo_stop = ehea_stop, | |
3081 | .ndo_start_xmit = ehea_start_xmit, | |
3082 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3083 | .ndo_poll_controller = ehea_netpoll, | |
3084 | #endif | |
3085 | .ndo_get_stats = ehea_get_stats, | |
635ecaa7 | 3086 | .ndo_change_mtu = eth_change_mtu, |
086c1b2c | 3087 | .ndo_set_mac_address = ehea_set_mac_addr, |
240c102d | 3088 | .ndo_validate_addr = eth_validate_addr, |
086c1b2c TK |
3089 | .ndo_set_multicast_list = ehea_set_multicast_list, |
3090 | .ndo_change_mtu = ehea_change_mtu, | |
3091 | .ndo_vlan_rx_register = ehea_vlan_rx_register, | |
3092 | .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid, | |
32e8f9a8 AB |
3093 | .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid, |
3094 | .ndo_tx_timeout = ehea_tx_watchdog, | |
086c1b2c TK |
3095 | }; |
3096 | ||
1acf2318 JBT |
3097 | struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, |
3098 | u32 logical_port_id, | |
3099 | struct device_node *dn) | |
3100 | { | |
3101 | int ret; | |
3102 | struct net_device *dev; | |
3103 | struct ehea_port *port; | |
3104 | struct device *port_dev; | |
3105 | int jumbo; | |
3106 | ||
3107 | /* allocate memory for the port structures */ | |
3108 | dev = alloc_etherdev(sizeof(struct ehea_port)); | |
3109 | ||
3110 | if (!dev) { | |
3111 | ehea_error("no mem for net_device"); | |
3112 | ret = -ENOMEM; | |
3113 | goto out_err; | |
3114 | } | |
3115 | ||
3116 | port = netdev_priv(dev); | |
3117 | ||
a5af6ad3 | 3118 | mutex_init(&port->port_lock); |
1acf2318 JBT |
3119 | port->state = EHEA_PORT_DOWN; |
3120 | port->sig_comp_iv = sq_entries / 10; | |
3121 | ||
3122 | port->adapter = adapter; | |
3123 | port->netdev = dev; | |
3124 | port->logical_port_id = logical_port_id; | |
3125 | ||
3126 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
3127 | ||
3128 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
3129 | if (!port->mc_list) { | |
3130 | ret = -ENOMEM; | |
3131 | goto out_free_ethdev; | |
3132 | } | |
3133 | ||
3134 | INIT_LIST_HEAD(&port->mc_list->list); | |
3135 | ||
3136 | ret = ehea_sense_port_attr(port); | |
3137 | if (ret) | |
3138 | goto out_free_mc_list; | |
3139 | ||
3140 | port_dev = ehea_register_port(port, dn); | |
3141 | if (!port_dev) | |
3142 | goto out_free_mc_list; | |
3143 | ||
3144 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
3145 | |
3146 | /* initialize net_device structure */ | |
7a291083 JBT |
3147 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); |
3148 | ||
086c1b2c TK |
3149 | dev->netdev_ops = &ehea_netdev_ops; |
3150 | ehea_set_ethtool_ops(dev); | |
3151 | ||
7a291083 | 3152 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO |
dc01c447 | 3153 | | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX |
7a291083 JBT |
3154 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER |
3155 | | NETIF_F_LLTX; | |
7a291083 JBT |
3156 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; |
3157 | ||
c4028958 | 3158 | INIT_WORK(&port->reset_task, ehea_reset_port); |
7a291083 JBT |
3159 | |
3160 | ret = register_netdev(dev); | |
3161 | if (ret) { | |
3162 | ehea_error("register_netdev failed. ret=%d", ret); | |
21eee2dd | 3163 | goto out_unreg_port; |
7a291083 JBT |
3164 | } |
3165 | ||
d4dc4ec9 JBT |
3166 | port->lro_max_aggr = lro_max_aggr; |
3167 | ||
1acf2318 | 3168 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 3169 | if (ret) |
1acf2318 JBT |
3170 | ehea_error("failed determining jumbo frame status for %s", |
3171 | port->netdev->name); | |
3172 | ||
9c750b7d TK |
3173 | ehea_info("%s: Jumbo frames are %sabled", dev->name, |
3174 | jumbo == 1 ? "en" : "dis"); | |
3175 | ||
44c82152 TK |
3176 | adapter->active_ports++; |
3177 | ||
1acf2318 | 3178 | return port; |
7a291083 | 3179 | |
1acf2318 JBT |
3180 | out_unreg_port: |
3181 | ehea_unregister_port(port); | |
3182 | ||
3183 | out_free_mc_list: | |
7a291083 | 3184 | kfree(port->mc_list); |
1acf2318 JBT |
3185 | |
3186 | out_free_ethdev: | |
3187 | free_netdev(dev); | |
3188 | ||
3189 | out_err: | |
3190 | ehea_error("setting up logical port with id=%d failed, ret=%d", | |
3191 | logical_port_id, ret); | |
3192 | return NULL; | |
3193 | } | |
3194 | ||
3195 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
3196 | { | |
7fb1c2ac | 3197 | struct ehea_adapter *adapter = port->adapter; |
1acf2318 JBT |
3198 | unregister_netdev(port->netdev); |
3199 | ehea_unregister_port(port); | |
3200 | kfree(port->mc_list); | |
3201 | free_netdev(port->netdev); | |
7fb1c2ac | 3202 | adapter->active_ports--; |
7a291083 JBT |
3203 | } |
3204 | ||
3205 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
3206 | { | |
1acf2318 JBT |
3207 | struct device_node *lhea_dn; |
3208 | struct device_node *eth_dn = NULL; | |
d1d25aab | 3209 | |
9f9a3b8a | 3210 | const u32 *dn_log_port_id; |
1acf2318 JBT |
3211 | int i = 0; |
3212 | ||
6b08f3ae | 3213 | lhea_dn = adapter->ofdev->node; |
1eef4e04 | 3214 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3215 | |
40cd3a45 | 3216 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3217 | NULL); |
1acf2318 JBT |
3218 | if (!dn_log_port_id) { |
3219 | ehea_error("bad device node: eth_dn name=%s", | |
3220 | eth_dn->full_name); | |
3221 | continue; | |
3222 | } | |
7a291083 | 3223 | |
1211bb6d TK |
3224 | if (ehea_add_adapter_mr(adapter)) { |
3225 | ehea_error("creating MR failed"); | |
3226 | of_node_put(eth_dn); | |
3227 | return -EIO; | |
3228 | } | |
3229 | ||
1acf2318 JBT |
3230 | adapter->port[i] = ehea_setup_single_port(adapter, |
3231 | *dn_log_port_id, | |
3232 | eth_dn); | |
7a291083 | 3233 | if (adapter->port[i]) |
1acf2318 | 3234 | ehea_info("%s -> logical port id #%d", |
e542aa6b | 3235 | adapter->port[i]->netdev->name, |
1acf2318 | 3236 | *dn_log_port_id); |
1211bb6d TK |
3237 | else |
3238 | ehea_remove_adapter_mr(adapter); | |
3239 | ||
1acf2318 | 3240 | i++; |
1eef4e04 | 3241 | }; |
1211bb6d | 3242 | return 0; |
1acf2318 JBT |
3243 | } |
3244 | ||
e542aa6b JBT |
3245 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
3246 | u32 logical_port_id) | |
1acf2318 JBT |
3247 | { |
3248 | struct device_node *lhea_dn; | |
3249 | struct device_node *eth_dn = NULL; | |
9f9a3b8a | 3250 | const u32 *dn_log_port_id; |
1acf2318 | 3251 | |
6b08f3ae | 3252 | lhea_dn = adapter->ofdev->node; |
1eef4e04 | 3253 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3254 | |
40cd3a45 | 3255 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3256 | NULL); |
1acf2318 JBT |
3257 | if (dn_log_port_id) |
3258 | if (*dn_log_port_id == logical_port_id) | |
3259 | return eth_dn; | |
1eef4e04 | 3260 | }; |
1acf2318 JBT |
3261 | |
3262 | return NULL; | |
3263 | } | |
3264 | ||
3265 | static ssize_t ehea_probe_port(struct device *dev, | |
3266 | struct device_attribute *attr, | |
3267 | const char *buf, size_t count) | |
3268 | { | |
c7ae011d | 3269 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3270 | struct ehea_port *port; |
3271 | struct device_node *eth_dn = NULL; | |
3272 | int i; | |
3273 | ||
3274 | u32 logical_port_id; | |
3275 | ||
a8e34fda | 3276 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3277 | |
3278 | port = ehea_get_port(adapter, logical_port_id); | |
3279 | ||
3280 | if (port) { | |
3281 | ehea_info("adding port with logical port id=%d failed. port " | |
3282 | "already configured as %s.", logical_port_id, | |
3283 | port->netdev->name); | |
3284 | return -EINVAL; | |
7a291083 | 3285 | } |
e542aa6b | 3286 | |
1acf2318 | 3287 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 3288 | |
1acf2318 JBT |
3289 | if (!eth_dn) { |
3290 | ehea_info("no logical port with id %d found", logical_port_id); | |
3291 | return -EINVAL; | |
3292 | } | |
e542aa6b | 3293 | |
1211bb6d TK |
3294 | if (ehea_add_adapter_mr(adapter)) { |
3295 | ehea_error("creating MR failed"); | |
3296 | return -EIO; | |
3297 | } | |
3298 | ||
1acf2318 | 3299 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 3300 | |
1eef4e04 JBT |
3301 | of_node_put(eth_dn); |
3302 | ||
1acf2318 | 3303 | if (port) { |
508d2b5d | 3304 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3305 | if (!adapter->port[i]) { |
3306 | adapter->port[i] = port; | |
3307 | break; | |
3308 | } | |
7a291083 | 3309 | |
1acf2318 JBT |
3310 | ehea_info("added %s (logical port id=%d)", port->netdev->name, |
3311 | logical_port_id); | |
1211bb6d TK |
3312 | } else { |
3313 | ehea_remove_adapter_mr(adapter); | |
e542aa6b | 3314 | return -EIO; |
1211bb6d | 3315 | } |
7a291083 | 3316 | |
1acf2318 JBT |
3317 | return (ssize_t) count; |
3318 | } | |
3319 | ||
3320 | static ssize_t ehea_remove_port(struct device *dev, | |
3321 | struct device_attribute *attr, | |
3322 | const char *buf, size_t count) | |
3323 | { | |
c7ae011d | 3324 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3325 | struct ehea_port *port; |
3326 | int i; | |
3327 | u32 logical_port_id; | |
3328 | ||
a8e34fda | 3329 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3330 | |
3331 | port = ehea_get_port(adapter, logical_port_id); | |
3332 | ||
3333 | if (port) { | |
3334 | ehea_info("removed %s (logical port id=%d)", port->netdev->name, | |
3335 | logical_port_id); | |
3336 | ||
3337 | ehea_shutdown_single_port(port); | |
3338 | ||
508d2b5d | 3339 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3340 | if (adapter->port[i] == port) { |
3341 | adapter->port[i] = NULL; | |
3342 | break; | |
3343 | } | |
3344 | } else { | |
3345 | ehea_error("removing port with logical port id=%d failed. port " | |
3346 | "not configured.", logical_port_id); | |
3347 | return -EINVAL; | |
3348 | } | |
3349 | ||
1211bb6d TK |
3350 | ehea_remove_adapter_mr(adapter); |
3351 | ||
1acf2318 JBT |
3352 | return (ssize_t) count; |
3353 | } | |
3354 | ||
3355 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
3356 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
3357 | ||
6b08f3ae | 3358 | int ehea_create_device_sysfs(struct of_device *dev) |
1acf2318 | 3359 | { |
6b08f3ae | 3360 | int ret = device_create_file(&dev->dev, &dev_attr_probe_port); |
1acf2318 JBT |
3361 | if (ret) |
3362 | goto out; | |
3363 | ||
6b08f3ae | 3364 | ret = device_create_file(&dev->dev, &dev_attr_remove_port); |
1acf2318 | 3365 | out: |
7a291083 JBT |
3366 | return ret; |
3367 | } | |
3368 | ||
6b08f3ae | 3369 | void ehea_remove_device_sysfs(struct of_device *dev) |
1acf2318 | 3370 | { |
6b08f3ae JF |
3371 | device_remove_file(&dev->dev, &dev_attr_probe_port); |
3372 | device_remove_file(&dev->dev, &dev_attr_remove_port); | |
1acf2318 JBT |
3373 | } |
3374 | ||
6b08f3ae | 3375 | static int __devinit ehea_probe_adapter(struct of_device *dev, |
1acf2318 | 3376 | const struct of_device_id *id) |
7a291083 JBT |
3377 | { |
3378 | struct ehea_adapter *adapter; | |
9f9a3b8a | 3379 | const u64 *adapter_handle; |
7a291083 JBT |
3380 | int ret; |
3381 | ||
6b08f3ae | 3382 | if (!dev || !dev->node) { |
1eef4e04 JBT |
3383 | ehea_error("Invalid ibmebus device probed"); |
3384 | return -EINVAL; | |
3385 | } | |
3386 | ||
7a291083 JBT |
3387 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
3388 | if (!adapter) { | |
3389 | ret = -ENOMEM; | |
6b08f3ae | 3390 | dev_err(&dev->dev, "no mem for ehea_adapter\n"); |
7a291083 JBT |
3391 | goto out; |
3392 | } | |
3393 | ||
44c82152 TK |
3394 | list_add(&adapter->list, &adapter_list); |
3395 | ||
6b08f3ae | 3396 | adapter->ofdev = dev; |
1acf2318 | 3397 | |
6b08f3ae | 3398 | adapter_handle = of_get_property(dev->node, "ibm,hea-handle", |
d1d25aab | 3399 | NULL); |
061bf3cd TK |
3400 | if (adapter_handle) |
3401 | adapter->handle = *adapter_handle; | |
3402 | ||
3403 | if (!adapter->handle) { | |
6b08f3ae JF |
3404 | dev_err(&dev->dev, "failed getting handle for adapter" |
3405 | " '%s'\n", dev->node->full_name); | |
7a291083 JBT |
3406 | ret = -ENODEV; |
3407 | goto out_free_ad; | |
3408 | } | |
3409 | ||
7a291083 JBT |
3410 | adapter->pd = EHEA_PD_ID; |
3411 | ||
c7ae011d | 3412 | dev_set_drvdata(&dev->dev, adapter); |
7a291083 | 3413 | |
7a291083 JBT |
3414 | |
3415 | /* initialize adapter and ports */ | |
3416 | /* get adapter properties */ | |
3417 | ret = ehea_sense_adapter_attr(adapter); | |
3418 | if (ret) { | |
898eb71c | 3419 | dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret); |
1211bb6d | 3420 | goto out_free_ad; |
7a291083 | 3421 | } |
7a291083 JBT |
3422 | |
3423 | adapter->neq = ehea_create_eq(adapter, | |
3424 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
3425 | if (!adapter->neq) { | |
1eef4e04 | 3426 | ret = -EIO; |
898eb71c | 3427 | dev_err(&dev->dev, "NEQ creation failed\n"); |
1211bb6d | 3428 | goto out_free_ad; |
7a291083 JBT |
3429 | } |
3430 | ||
3431 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
3432 | (unsigned long)adapter); | |
3433 | ||
6b08f3ae | 3434 | ret = ibmebus_request_irq(adapter->neq->attr.ist1, |
38515e90 | 3435 | ehea_interrupt_neq, IRQF_DISABLED, |
7a291083 JBT |
3436 | "ehea_neq", adapter); |
3437 | if (ret) { | |
898eb71c | 3438 | dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); |
7a291083 JBT |
3439 | goto out_kill_eq; |
3440 | } | |
3441 | ||
1eef4e04 JBT |
3442 | ret = ehea_create_device_sysfs(dev); |
3443 | if (ret) | |
3bf76b81 | 3444 | goto out_free_irq; |
1acf2318 | 3445 | |
7a291083 JBT |
3446 | ret = ehea_setup_ports(adapter); |
3447 | if (ret) { | |
898eb71c | 3448 | dev_err(&dev->dev, "setup_ports failed\n"); |
1acf2318 | 3449 | goto out_rem_dev_sysfs; |
7a291083 JBT |
3450 | } |
3451 | ||
3452 | ret = 0; | |
3453 | goto out; | |
3454 | ||
1acf2318 JBT |
3455 | out_rem_dev_sysfs: |
3456 | ehea_remove_device_sysfs(dev); | |
3457 | ||
7a291083 | 3458 | out_free_irq: |
6b08f3ae | 3459 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
7a291083 JBT |
3460 | |
3461 | out_kill_eq: | |
3462 | ehea_destroy_eq(adapter->neq); | |
3463 | ||
7a291083 | 3464 | out_free_ad: |
51621fbd | 3465 | list_del(&adapter->list); |
7a291083 | 3466 | kfree(adapter); |
21eee2dd | 3467 | |
7a291083 | 3468 | out: |
21eee2dd | 3469 | ehea_update_firmware_handles(); |
52e21b1b | 3470 | |
7a291083 JBT |
3471 | return ret; |
3472 | } | |
3473 | ||
6b08f3ae | 3474 | static int __devexit ehea_remove(struct of_device *dev) |
7a291083 | 3475 | { |
c7ae011d | 3476 | struct ehea_adapter *adapter = dev_get_drvdata(&dev->dev); |
7a291083 JBT |
3477 | int i; |
3478 | ||
1acf2318 | 3479 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
7a291083 JBT |
3480 | if (adapter->port[i]) { |
3481 | ehea_shutdown_single_port(adapter->port[i]); | |
3482 | adapter->port[i] = NULL; | |
3483 | } | |
1acf2318 JBT |
3484 | |
3485 | ehea_remove_device_sysfs(dev); | |
3486 | ||
3bf76b81 | 3487 | flush_scheduled_work(); |
7a291083 | 3488 | |
6b08f3ae | 3489 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
d4150a27 | 3490 | tasklet_kill(&adapter->neq_tasklet); |
7a291083 JBT |
3491 | |
3492 | ehea_destroy_eq(adapter->neq); | |
1211bb6d | 3493 | ehea_remove_adapter_mr(adapter); |
44c82152 | 3494 | list_del(&adapter->list); |
7a291083 | 3495 | kfree(adapter); |
44c82152 | 3496 | |
21eee2dd | 3497 | ehea_update_firmware_handles(); |
21eee2dd | 3498 | |
7a291083 JBT |
3499 | return 0; |
3500 | } | |
3501 | ||
21eee2dd TK |
3502 | void ehea_crash_handler(void) |
3503 | { | |
3504 | int i; | |
3505 | ||
3506 | if (ehea_fw_handles.arr) | |
3507 | for (i = 0; i < ehea_fw_handles.num_entries; i++) | |
3508 | ehea_h_free_resource(ehea_fw_handles.arr[i].adh, | |
3509 | ehea_fw_handles.arr[i].fwh, | |
3510 | FORCE_FREE); | |
3511 | ||
3512 | if (ehea_bcmc_regs.arr) | |
3513 | for (i = 0; i < ehea_bcmc_regs.num_entries; i++) | |
3514 | ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh, | |
3515 | ehea_bcmc_regs.arr[i].port_id, | |
3516 | ehea_bcmc_regs.arr[i].reg_type, | |
3517 | ehea_bcmc_regs.arr[i].macaddr, | |
3518 | 0, H_DEREG_BCMC); | |
3519 | } | |
3520 | ||
48cfb14f HH |
3521 | static int ehea_mem_notifier(struct notifier_block *nb, |
3522 | unsigned long action, void *data) | |
3523 | { | |
d4f12daf | 3524 | struct memory_notify *arg = data; |
48cfb14f | 3525 | switch (action) { |
d4f12daf HH |
3526 | case MEM_CANCEL_OFFLINE: |
3527 | ehea_info("memory offlining canceled"); | |
3528 | /* Readd canceled memory block */ | |
3529 | case MEM_ONLINE: | |
3530 | ehea_info("memory is going online"); | |
3876732c | 3531 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf HH |
3532 | if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages)) |
3533 | return NOTIFY_BAD; | |
3534 | ehea_rereg_mrs(NULL); | |
3535 | break; | |
3536 | case MEM_GOING_OFFLINE: | |
3537 | ehea_info("memory is going offline"); | |
3876732c | 3538 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf HH |
3539 | if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages)) |
3540 | return NOTIFY_BAD; | |
48cfb14f HH |
3541 | ehea_rereg_mrs(NULL); |
3542 | break; | |
3543 | default: | |
3544 | break; | |
3545 | } | |
52e21b1b JBT |
3546 | |
3547 | ehea_update_firmware_handles(); | |
3548 | ||
48cfb14f HH |
3549 | return NOTIFY_OK; |
3550 | } | |
3551 | ||
3552 | static struct notifier_block ehea_mem_nb = { | |
3553 | .notifier_call = ehea_mem_notifier, | |
3554 | }; | |
3555 | ||
2a6f4e49 JBT |
3556 | static int ehea_reboot_notifier(struct notifier_block *nb, |
3557 | unsigned long action, void *unused) | |
3558 | { | |
3559 | if (action == SYS_RESTART) { | |
3560 | ehea_info("Reboot: freeing all eHEA resources"); | |
3561 | ibmebus_unregister_driver(&ehea_driver); | |
3562 | } | |
3563 | return NOTIFY_DONE; | |
3564 | } | |
3565 | ||
3566 | static struct notifier_block ehea_reboot_nb = { | |
508d2b5d | 3567 | .notifier_call = ehea_reboot_notifier, |
2a6f4e49 JBT |
3568 | }; |
3569 | ||
7a291083 JBT |
3570 | static int check_module_parm(void) |
3571 | { | |
3572 | int ret = 0; | |
3573 | ||
3574 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
3575 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
3576 | ehea_info("Bad parameter: rq1_entries"); | |
3577 | ret = -EINVAL; | |
3578 | } | |
3579 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
3580 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
3581 | ehea_info("Bad parameter: rq2_entries"); | |
3582 | ret = -EINVAL; | |
3583 | } | |
3584 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
3585 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
3586 | ehea_info("Bad parameter: rq3_entries"); | |
3587 | ret = -EINVAL; | |
3588 | } | |
3589 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
3590 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
3591 | ehea_info("Bad parameter: sq_entries"); | |
3592 | ret = -EINVAL; | |
3593 | } | |
3594 | ||
3595 | return ret; | |
3596 | } | |
3597 | ||
4c3ca4da JBT |
3598 | static ssize_t ehea_show_capabilities(struct device_driver *drv, |
3599 | char *buf) | |
3600 | { | |
3601 | return sprintf(buf, "%d", EHEA_CAPABILITIES); | |
3602 | } | |
3603 | ||
3604 | static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH, | |
3605 | ehea_show_capabilities, NULL); | |
3606 | ||
7a291083 JBT |
3607 | int __init ehea_module_init(void) |
3608 | { | |
3609 | int ret; | |
3610 | ||
3611 | printk(KERN_INFO "IBM eHEA ethernet device driver (Release %s)\n", | |
3612 | DRV_VERSION); | |
3613 | ||
44c82152 TK |
3614 | |
3615 | INIT_WORK(&ehea_rereg_mr_task, ehea_rereg_mrs); | |
21eee2dd TK |
3616 | memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); |
3617 | memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); | |
3618 | ||
9f71a568 | 3619 | mutex_init(&ehea_fw_handles.lock); |
5c2cec14 | 3620 | spin_lock_init(&ehea_bcmc_regs.lock); |
44c82152 | 3621 | |
7a291083 JBT |
3622 | ret = check_module_parm(); |
3623 | if (ret) | |
3624 | goto out; | |
44c82152 TK |
3625 | |
3626 | ret = ehea_create_busmap(); | |
3627 | if (ret) | |
3628 | goto out; | |
3629 | ||
21eee2dd TK |
3630 | ret = register_reboot_notifier(&ehea_reboot_nb); |
3631 | if (ret) | |
3632 | ehea_info("failed registering reboot notifier"); | |
3633 | ||
48cfb14f HH |
3634 | ret = register_memory_notifier(&ehea_mem_nb); |
3635 | if (ret) | |
3636 | ehea_info("failed registering memory remove notifier"); | |
3637 | ||
21eee2dd TK |
3638 | ret = crash_shutdown_register(&ehea_crash_handler); |
3639 | if (ret) | |
3640 | ehea_info("failed registering crash handler"); | |
2a6f4e49 | 3641 | |
7a291083 | 3642 | ret = ibmebus_register_driver(&ehea_driver); |
4c3ca4da | 3643 | if (ret) { |
7a291083 | 3644 | ehea_error("failed registering eHEA device driver on ebus"); |
21eee2dd | 3645 | goto out2; |
4c3ca4da JBT |
3646 | } |
3647 | ||
3648 | ret = driver_create_file(&ehea_driver.driver, | |
3649 | &driver_attr_capabilities); | |
3650 | if (ret) { | |
3651 | ehea_error("failed to register capabilities attribute, ret=%d", | |
3652 | ret); | |
21eee2dd | 3653 | goto out3; |
4c3ca4da | 3654 | } |
7a291083 | 3655 | |
21eee2dd TK |
3656 | return ret; |
3657 | ||
3658 | out3: | |
3659 | ibmebus_unregister_driver(&ehea_driver); | |
3660 | out2: | |
48cfb14f | 3661 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3662 | unregister_reboot_notifier(&ehea_reboot_nb); |
3663 | crash_shutdown_unregister(&ehea_crash_handler); | |
7a291083 JBT |
3664 | out: |
3665 | return ret; | |
3666 | } | |
3667 | ||
3668 | static void __exit ehea_module_exit(void) | |
3669 | { | |
21eee2dd TK |
3670 | int ret; |
3671 | ||
3bf76b81 | 3672 | flush_scheduled_work(); |
4c3ca4da | 3673 | driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities); |
7a291083 | 3674 | ibmebus_unregister_driver(&ehea_driver); |
2a6f4e49 | 3675 | unregister_reboot_notifier(&ehea_reboot_nb); |
21eee2dd TK |
3676 | ret = crash_shutdown_unregister(&ehea_crash_handler); |
3677 | if (ret) | |
3678 | ehea_info("failed unregistering crash handler"); | |
48cfb14f | 3679 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3680 | kfree(ehea_fw_handles.arr); |
3681 | kfree(ehea_bcmc_regs.arr); | |
44c82152 | 3682 | ehea_destroy_busmap(); |
7a291083 JBT |
3683 | } |
3684 | ||
3685 | module_init(ehea_module_init); | |
3686 | module_exit(ehea_module_exit); |