Commit | Line | Data |
---|---|---|
7a291083 | 1 | /* |
3396c782 | 2 | * linux/drivers/net/ethernet/ibm/ehea/ehea_main.c |
7a291083 JBT |
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 | ||
8c4877a4 JP |
29 | #define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
30 | ||
7a291083 JBT |
31 | #include <linux/in.h> |
32 | #include <linux/ip.h> | |
33 | #include <linux/tcp.h> | |
34 | #include <linux/udp.h> | |
35 | #include <linux/if.h> | |
36 | #include <linux/list.h> | |
5a0e3ad6 | 37 | #include <linux/slab.h> |
7a291083 | 38 | #include <linux/if_ether.h> |
2a6f4e49 JBT |
39 | #include <linux/notifier.h> |
40 | #include <linux/reboot.h> | |
48cfb14f | 41 | #include <linux/memory.h> |
21eee2dd | 42 | #include <asm/kexec.h> |
06f89edf | 43 | #include <linux/mutex.h> |
268bb0ce | 44 | #include <linux/prefetch.h> |
2a6f4e49 | 45 | |
7a291083 JBT |
46 | #include <net/ip.h> |
47 | ||
48 | #include "ehea.h" | |
49 | #include "ehea_qmr.h" | |
50 | #include "ehea_phyp.h" | |
51 | ||
52 | ||
53 | MODULE_LICENSE("GPL"); | |
54 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
55 | MODULE_DESCRIPTION("IBM eServer HEA Driver"); | |
56 | MODULE_VERSION(DRV_VERSION); | |
57 | ||
58 | ||
59 | static int msg_level = -1; | |
60 | static int rq1_entries = EHEA_DEF_ENTRIES_RQ1; | |
61 | static int rq2_entries = EHEA_DEF_ENTRIES_RQ2; | |
62 | static int rq3_entries = EHEA_DEF_ENTRIES_RQ3; | |
63 | static int sq_entries = EHEA_DEF_ENTRIES_SQ; | |
b9564468 | 64 | static int use_mcs = 1; |
508d2b5d | 65 | static int prop_carrier_state; |
7a291083 JBT |
66 | |
67 | module_param(msg_level, int, 0); | |
68 | module_param(rq1_entries, int, 0); | |
69 | module_param(rq2_entries, int, 0); | |
70 | module_param(rq3_entries, int, 0); | |
71 | module_param(sq_entries, int, 0); | |
8759cf76 | 72 | module_param(prop_carrier_state, int, 0); |
18604c54 | 73 | module_param(use_mcs, int, 0); |
7a291083 JBT |
74 | |
75 | MODULE_PARM_DESC(msg_level, "msg_level"); | |
8759cf76 JBT |
76 | MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical " |
77 | "port to stack. 1:yes, 0:no. Default = 0 "); | |
7a291083 JBT |
78 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " |
79 | "[2^x - 1], x = [6..14]. Default = " | |
80 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); | |
81 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
82 | "[2^x - 1], x = [6..14]. Default = " | |
83 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); | |
84 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
85 | "[2^x - 1], x = [6..14]. Default = " | |
86 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); | |
87 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
88 | "[2^x - 1], x = [6..14]. Default = " | |
89 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); | |
b9564468 AB |
90 | MODULE_PARM_DESC(use_mcs, " Multiple receive queues, 1: enable, 0: disable, " |
91 | "Default = 1"); | |
7a291083 | 92 | |
508d2b5d | 93 | static int port_name_cnt; |
44c82152 | 94 | static LIST_HEAD(adapter_list); |
48e4cc77 | 95 | static unsigned long ehea_driver_flags; |
06f89edf | 96 | static DEFINE_MUTEX(dlpar_mem_lock); |
1886e5d2 TLSC |
97 | static struct ehea_fw_handle_array ehea_fw_handles; |
98 | static struct ehea_bcmc_reg_array ehea_bcmc_regs; | |
21eee2dd | 99 | |
d1dea38d | 100 | |
2dc11581 | 101 | static int __devinit ehea_probe_adapter(struct platform_device *dev, |
d1d25aab | 102 | const struct of_device_id *id); |
d1dea38d | 103 | |
2dc11581 | 104 | static int __devexit ehea_remove(struct platform_device *dev); |
d1dea38d TK |
105 | |
106 | static struct of_device_id ehea_device_table[] = { | |
107 | { | |
108 | .name = "lhea", | |
109 | .compatible = "IBM,lhea", | |
110 | }, | |
111 | {}, | |
112 | }; | |
b0afffe8 | 113 | MODULE_DEVICE_TABLE(of, ehea_device_table); |
d1dea38d | 114 | |
6b08f3ae | 115 | static struct of_platform_driver ehea_driver = { |
4018294b GL |
116 | .driver = { |
117 | .name = "ehea", | |
118 | .owner = THIS_MODULE, | |
119 | .of_match_table = ehea_device_table, | |
120 | }, | |
d1dea38d TK |
121 | .probe = ehea_probe_adapter, |
122 | .remove = ehea_remove, | |
123 | }; | |
124 | ||
508d2b5d DM |
125 | void ehea_dump(void *adr, int len, char *msg) |
126 | { | |
7a291083 JBT |
127 | int x; |
128 | unsigned char *deb = adr; | |
129 | for (x = 0; x < len; x += 16) { | |
8c4877a4 JP |
130 | pr_info("%s adr=%p ofs=%04x %016llx %016llx\n", |
131 | msg, deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8])); | |
7a291083 JBT |
132 | deb += 16; |
133 | } | |
134 | } | |
135 | ||
1886e5d2 | 136 | static void ehea_schedule_port_reset(struct ehea_port *port) |
2f69ae01 JBT |
137 | { |
138 | if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) | |
139 | schedule_work(&port->reset_task); | |
140 | } | |
141 | ||
21eee2dd TK |
142 | static void ehea_update_firmware_handles(void) |
143 | { | |
144 | struct ehea_fw_handle_entry *arr = NULL; | |
145 | struct ehea_adapter *adapter; | |
146 | int num_adapters = 0; | |
147 | int num_ports = 0; | |
148 | int num_portres = 0; | |
149 | int i = 0; | |
150 | int num_fw_handles, k, l; | |
151 | ||
152 | /* Determine number of handles */ | |
52e21b1b JBT |
153 | mutex_lock(&ehea_fw_handles.lock); |
154 | ||
21eee2dd TK |
155 | list_for_each_entry(adapter, &adapter_list, list) { |
156 | num_adapters++; | |
157 | ||
158 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
159 | struct ehea_port *port = adapter->port[k]; | |
160 | ||
161 | if (!port || (port->state != EHEA_PORT_UP)) | |
162 | continue; | |
163 | ||
164 | num_ports++; | |
723f28e4 | 165 | num_portres += port->num_def_qps; |
21eee2dd TK |
166 | } |
167 | } | |
168 | ||
169 | num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES + | |
170 | num_ports * EHEA_NUM_PORT_FW_HANDLES + | |
171 | num_portres * EHEA_NUM_PORTRES_FW_HANDLES; | |
172 | ||
173 | if (num_fw_handles) { | |
baeb2ffa | 174 | arr = kcalloc(num_fw_handles, sizeof(*arr), GFP_KERNEL); |
21eee2dd | 175 | if (!arr) |
52e21b1b | 176 | goto out; /* Keep the existing array */ |
21eee2dd TK |
177 | } else |
178 | goto out_update; | |
179 | ||
180 | list_for_each_entry(adapter, &adapter_list, list) { | |
52e21b1b JBT |
181 | if (num_adapters == 0) |
182 | break; | |
183 | ||
21eee2dd TK |
184 | for (k = 0; k < EHEA_MAX_PORTS; k++) { |
185 | struct ehea_port *port = adapter->port[k]; | |
186 | ||
8e95a202 JP |
187 | if (!port || (port->state != EHEA_PORT_UP) || |
188 | (num_ports == 0)) | |
21eee2dd TK |
189 | continue; |
190 | ||
723f28e4 | 191 | for (l = 0; l < port->num_def_qps; l++) { |
21eee2dd TK |
192 | struct ehea_port_res *pr = &port->port_res[l]; |
193 | ||
194 | arr[i].adh = adapter->handle; | |
195 | arr[i++].fwh = pr->qp->fw_handle; | |
196 | arr[i].adh = adapter->handle; | |
197 | arr[i++].fwh = pr->send_cq->fw_handle; | |
198 | arr[i].adh = adapter->handle; | |
199 | arr[i++].fwh = pr->recv_cq->fw_handle; | |
200 | arr[i].adh = adapter->handle; | |
201 | arr[i++].fwh = pr->eq->fw_handle; | |
202 | arr[i].adh = adapter->handle; | |
203 | arr[i++].fwh = pr->send_mr.handle; | |
204 | arr[i].adh = adapter->handle; | |
205 | arr[i++].fwh = pr->recv_mr.handle; | |
206 | } | |
207 | arr[i].adh = adapter->handle; | |
208 | arr[i++].fwh = port->qp_eq->fw_handle; | |
52e21b1b | 209 | num_ports--; |
21eee2dd TK |
210 | } |
211 | ||
212 | arr[i].adh = adapter->handle; | |
213 | arr[i++].fwh = adapter->neq->fw_handle; | |
214 | ||
215 | if (adapter->mr.handle) { | |
216 | arr[i].adh = adapter->handle; | |
217 | arr[i++].fwh = adapter->mr.handle; | |
218 | } | |
52e21b1b | 219 | num_adapters--; |
21eee2dd TK |
220 | } |
221 | ||
222 | out_update: | |
223 | kfree(ehea_fw_handles.arr); | |
224 | ehea_fw_handles.arr = arr; | |
225 | ehea_fw_handles.num_entries = i; | |
52e21b1b JBT |
226 | out: |
227 | mutex_unlock(&ehea_fw_handles.lock); | |
21eee2dd TK |
228 | } |
229 | ||
230 | static void ehea_update_bcmc_registrations(void) | |
231 | { | |
52e21b1b | 232 | unsigned long flags; |
21eee2dd TK |
233 | struct ehea_bcmc_reg_entry *arr = NULL; |
234 | struct ehea_adapter *adapter; | |
235 | struct ehea_mc_list *mc_entry; | |
236 | int num_registrations = 0; | |
237 | int i = 0; | |
238 | int k; | |
239 | ||
52e21b1b JBT |
240 | spin_lock_irqsave(&ehea_bcmc_regs.lock, flags); |
241 | ||
21eee2dd TK |
242 | /* Determine number of registrations */ |
243 | list_for_each_entry(adapter, &adapter_list, list) | |
244 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
245 | struct ehea_port *port = adapter->port[k]; | |
246 | ||
247 | if (!port || (port->state != EHEA_PORT_UP)) | |
248 | continue; | |
249 | ||
250 | num_registrations += 2; /* Broadcast registrations */ | |
251 | ||
252 | list_for_each_entry(mc_entry, &port->mc_list->list,list) | |
253 | num_registrations += 2; | |
254 | } | |
255 | ||
256 | if (num_registrations) { | |
baeb2ffa | 257 | arr = kcalloc(num_registrations, sizeof(*arr), GFP_ATOMIC); |
21eee2dd | 258 | if (!arr) |
52e21b1b | 259 | goto out; /* Keep the existing array */ |
21eee2dd TK |
260 | } else |
261 | goto out_update; | |
262 | ||
263 | list_for_each_entry(adapter, &adapter_list, list) { | |
264 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
265 | struct ehea_port *port = adapter->port[k]; | |
266 | ||
267 | if (!port || (port->state != EHEA_PORT_UP)) | |
268 | continue; | |
269 | ||
52e21b1b JBT |
270 | if (num_registrations == 0) |
271 | goto out_update; | |
272 | ||
21eee2dd TK |
273 | arr[i].adh = adapter->handle; |
274 | arr[i].port_id = port->logical_port_id; | |
275 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
276 | EHEA_BCMC_UNTAGGED; | |
277 | arr[i++].macaddr = port->mac_addr; | |
278 | ||
279 | arr[i].adh = adapter->handle; | |
280 | arr[i].port_id = port->logical_port_id; | |
281 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
282 | EHEA_BCMC_VLANID_ALL; | |
283 | arr[i++].macaddr = port->mac_addr; | |
52e21b1b | 284 | num_registrations -= 2; |
21eee2dd TK |
285 | |
286 | list_for_each_entry(mc_entry, | |
287 | &port->mc_list->list, list) { | |
52e21b1b JBT |
288 | if (num_registrations == 0) |
289 | goto out_update; | |
290 | ||
21eee2dd TK |
291 | arr[i].adh = adapter->handle; |
292 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 293 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 294 | EHEA_BCMC_UNTAGGED; |
5d384574 TLSC |
295 | if (mc_entry->macaddr == 0) |
296 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd TK |
297 | arr[i++].macaddr = mc_entry->macaddr; |
298 | ||
299 | arr[i].adh = adapter->handle; | |
300 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 301 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 302 | EHEA_BCMC_VLANID_ALL; |
5d384574 TLSC |
303 | if (mc_entry->macaddr == 0) |
304 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd | 305 | arr[i++].macaddr = mc_entry->macaddr; |
52e21b1b | 306 | num_registrations -= 2; |
21eee2dd TK |
307 | } |
308 | } | |
309 | } | |
310 | ||
311 | out_update: | |
312 | kfree(ehea_bcmc_regs.arr); | |
313 | ehea_bcmc_regs.arr = arr; | |
314 | ehea_bcmc_regs.num_entries = i; | |
52e21b1b JBT |
315 | out: |
316 | spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags); | |
21eee2dd TK |
317 | } |
318 | ||
239c562c AB |
319 | static struct rtnl_link_stats64 *ehea_get_stats64(struct net_device *dev, |
320 | struct rtnl_link_stats64 *stats) | |
7a291083 JBT |
321 | { |
322 | struct ehea_port *port = netdev_priv(dev); | |
2aefcad8 | 323 | u64 rx_packets = 0, tx_packets = 0, rx_bytes = 0, tx_bytes = 0; |
7a291083 JBT |
324 | int i; |
325 | ||
2aefcad8 | 326 | for (i = 0; i < port->num_def_qps; i++) { |
327 | rx_packets += port->port_res[i].rx_packets; | |
328 | rx_bytes += port->port_res[i].rx_bytes; | |
329 | } | |
330 | ||
723f28e4 | 331 | for (i = 0; i < port->num_def_qps; i++) { |
2aefcad8 | 332 | tx_packets += port->port_res[i].tx_packets; |
333 | tx_bytes += port->port_res[i].tx_bytes; | |
334 | } | |
335 | ||
336 | stats->tx_packets = tx_packets; | |
337 | stats->rx_bytes = rx_bytes; | |
338 | stats->tx_bytes = tx_bytes; | |
339 | stats->rx_packets = rx_packets; | |
340 | ||
09c1d446 ED |
341 | stats->multicast = port->stats.multicast; |
342 | stats->rx_errors = port->stats.rx_errors; | |
343 | return stats; | |
2aefcad8 | 344 | } |
345 | ||
346 | static void ehea_update_stats(struct work_struct *work) | |
347 | { | |
348 | struct ehea_port *port = | |
349 | container_of(work, struct ehea_port, stats_work.work); | |
350 | struct net_device *dev = port->netdev; | |
239c562c | 351 | struct rtnl_link_stats64 *stats = &port->stats; |
2aefcad8 | 352 | struct hcp_ehea_port_cb2 *cb2; |
353 | u64 hret; | |
7a291083 | 354 | |
3d8009c7 | 355 | cb2 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 356 | if (!cb2) { |
2aefcad8 | 357 | netdev_err(dev, "No mem for cb2. Some interface statistics were not updated\n"); |
358 | goto resched; | |
7a291083 JBT |
359 | } |
360 | ||
361 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
362 | port->logical_port_id, | |
363 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
364 | if (hret != H_SUCCESS) { | |
8c4877a4 | 365 | netdev_err(dev, "query_ehea_port failed\n"); |
7a291083 JBT |
366 | goto out_herr; |
367 | } | |
368 | ||
369 | if (netif_msg_hw(port)) | |
370 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
371 | ||
7a291083 JBT |
372 | stats->multicast = cb2->rxmcp; |
373 | stats->rx_errors = cb2->rxuerr; | |
7a291083 JBT |
374 | |
375 | out_herr: | |
3faf2693 | 376 | free_page((unsigned long)cb2); |
2aefcad8 | 377 | resched: |
67c170a2 AB |
378 | schedule_delayed_work(&port->stats_work, |
379 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
380 | } |
381 | ||
382 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
383 | { | |
384 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
385 | struct net_device *dev = pr->port->netdev; | |
386 | int max_index_mask = pr->rq1_skba.len - 1; | |
2c69448b JBT |
387 | int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes; |
388 | int adder = 0; | |
7a291083 JBT |
389 | int i; |
390 | ||
2c69448b JBT |
391 | pr->rq1_skba.os_skbs = 0; |
392 | ||
393 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { | |
44fb3126 TK |
394 | if (nr_of_wqes > 0) |
395 | pr->rq1_skba.index = index; | |
2c69448b | 396 | pr->rq1_skba.os_skbs = fill_wqes; |
7a291083 | 397 | return; |
2c69448b | 398 | } |
7a291083 | 399 | |
2c69448b | 400 | for (i = 0; i < fill_wqes; i++) { |
7a291083 JBT |
401 | if (!skb_arr_rq1[index]) { |
402 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
403 | EHEA_L_PKT_SIZE); | |
404 | if (!skb_arr_rq1[index]) { | |
8c4877a4 | 405 | netdev_info(dev, "Unable to allocate enough skb in the array\n"); |
2c69448b | 406 | pr->rq1_skba.os_skbs = fill_wqes - i; |
7a291083 JBT |
407 | break; |
408 | } | |
409 | } | |
410 | index--; | |
411 | index &= max_index_mask; | |
2c69448b | 412 | adder++; |
7a291083 | 413 | } |
2c69448b JBT |
414 | |
415 | if (adder == 0) | |
416 | return; | |
417 | ||
7a291083 | 418 | /* Ring doorbell */ |
2c69448b | 419 | ehea_update_rq1a(pr->qp, adder); |
7a291083 JBT |
420 | } |
421 | ||
e2878806 | 422 | static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) |
7a291083 | 423 | { |
7a291083 JBT |
424 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; |
425 | struct net_device *dev = pr->port->netdev; | |
426 | int i; | |
427 | ||
5c7e57f7 | 428 | if (nr_rq1a > pr->rq1_skba.len) { |
8c4877a4 | 429 | netdev_err(dev, "NR_RQ1A bigger than skb array len\n"); |
5c7e57f7 BL |
430 | return; |
431 | } | |
432 | ||
433 | for (i = 0; i < nr_rq1a; i++) { | |
7a291083 | 434 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); |
5c7e57f7 | 435 | if (!skb_arr_rq1[i]) { |
8c4877a4 | 436 | netdev_info(dev, "Not enough memory to allocate skb array\n"); |
e2878806 | 437 | break; |
5c7e57f7 | 438 | } |
7a291083 JBT |
439 | } |
440 | /* Ring doorbell */ | |
f76957fc | 441 | ehea_update_rq1a(pr->qp, i - 1); |
7a291083 JBT |
442 | } |
443 | ||
444 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
445 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
446 | int num_wqes, int wqe_type, int packet_size) | |
447 | { | |
448 | struct net_device *dev = pr->port->netdev; | |
449 | struct ehea_qp *qp = pr->qp; | |
450 | struct sk_buff **skb_arr = q_skba->arr; | |
451 | struct ehea_rwqe *rwqe; | |
452 | int i, index, max_index_mask, fill_wqes; | |
2c69448b | 453 | int adder = 0; |
7a291083 JBT |
454 | int ret = 0; |
455 | ||
456 | fill_wqes = q_skba->os_skbs + num_wqes; | |
2c69448b | 457 | q_skba->os_skbs = 0; |
7a291083 | 458 | |
2c69448b JBT |
459 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
460 | q_skba->os_skbs = fill_wqes; | |
7a291083 | 461 | return ret; |
2c69448b | 462 | } |
7a291083 JBT |
463 | |
464 | index = q_skba->index; | |
465 | max_index_mask = q_skba->len - 1; | |
466 | for (i = 0; i < fill_wqes; i++) { | |
2c69448b | 467 | u64 tmp_addr; |
89d71a66 ED |
468 | struct sk_buff *skb; |
469 | ||
470 | skb = netdev_alloc_skb_ip_align(dev, packet_size); | |
7a291083 | 471 | if (!skb) { |
7a291083 | 472 | q_skba->os_skbs = fill_wqes - i; |
e2878806 | 473 | if (q_skba->os_skbs == q_skba->len - 2) { |
8c4877a4 JP |
474 | netdev_info(pr->port->netdev, |
475 | "rq%i ran dry - no mem for skb\n", | |
476 | rq_nr); | |
e2878806 TK |
477 | ret = -ENOMEM; |
478 | } | |
7a291083 JBT |
479 | break; |
480 | } | |
7a291083 JBT |
481 | |
482 | skb_arr[index] = skb; | |
2c69448b JBT |
483 | tmp_addr = ehea_map_vaddr(skb->data); |
484 | if (tmp_addr == -1) { | |
485 | dev_kfree_skb(skb); | |
486 | q_skba->os_skbs = fill_wqes - i; | |
487 | ret = 0; | |
488 | break; | |
489 | } | |
7a291083 JBT |
490 | |
491 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
492 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
d1d25aab | 493 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); |
7a291083 | 494 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; |
2c69448b | 495 | rwqe->sg_list[0].vaddr = tmp_addr; |
7a291083 JBT |
496 | rwqe->sg_list[0].len = packet_size; |
497 | rwqe->data_segments = 1; | |
498 | ||
499 | index++; | |
500 | index &= max_index_mask; | |
2c69448b | 501 | adder++; |
7a291083 | 502 | } |
44c82152 | 503 | |
7a291083 | 504 | q_skba->index = index; |
2c69448b JBT |
505 | if (adder == 0) |
506 | goto out; | |
7a291083 JBT |
507 | |
508 | /* Ring doorbell */ | |
509 | iosync(); | |
510 | if (rq_nr == 2) | |
2c69448b | 511 | ehea_update_rq2a(pr->qp, adder); |
7a291083 | 512 | else |
2c69448b | 513 | ehea_update_rq3a(pr->qp, adder); |
44c82152 | 514 | out: |
7a291083 JBT |
515 | return ret; |
516 | } | |
517 | ||
518 | ||
519 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
520 | { | |
521 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
522 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
89d71a66 | 523 | EHEA_RQ2_PKT_SIZE); |
7a291083 JBT |
524 | } |
525 | ||
526 | ||
527 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
528 | { | |
529 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
530 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
89d71a66 | 531 | EHEA_MAX_PACKET_SIZE); |
7a291083 JBT |
532 | } |
533 | ||
534 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
535 | { | |
536 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
537 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
538 | return 0; | |
539 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
540 | (cqe->header_length == 0)) | |
541 | return 0; | |
542 | return -EINVAL; | |
543 | } | |
544 | ||
545 | static inline void ehea_fill_skb(struct net_device *dev, | |
b9564468 AB |
546 | struct sk_buff *skb, struct ehea_cqe *cqe, |
547 | struct ehea_port_res *pr) | |
7a291083 JBT |
548 | { |
549 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
550 | ||
551 | skb_put(skb, length); | |
7a291083 | 552 | skb->protocol = eth_type_trans(skb, dev); |
71085ce8 BL |
553 | |
554 | /* The packet was not an IPV4 packet so a complemented checksum was | |
555 | calculated. The value is found in the Internet Checksum field. */ | |
556 | if (cqe->status & EHEA_CQE_BLIND_CKSUM) { | |
557 | skb->ip_summed = CHECKSUM_COMPLETE; | |
558 | skb->csum = csum_unfold(~cqe->inet_checksum_value); | |
559 | } else | |
560 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
b9564468 AB |
561 | |
562 | skb_record_rx_queue(skb, pr - &pr->port->port_res[0]); | |
7a291083 JBT |
563 | } |
564 | ||
565 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
566 | int arr_len, | |
567 | struct ehea_cqe *cqe) | |
568 | { | |
569 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
570 | struct sk_buff *skb; | |
571 | void *pref; | |
572 | int x; | |
573 | ||
574 | x = skb_index + 1; | |
575 | x &= (arr_len - 1); | |
576 | ||
577 | pref = skb_array[x]; | |
0b2febf3 HH |
578 | if (pref) { |
579 | prefetchw(pref); | |
580 | prefetchw(pref + EHEA_CACHE_LINE); | |
581 | ||
582 | pref = (skb_array[x]->data); | |
583 | prefetch(pref); | |
584 | prefetch(pref + EHEA_CACHE_LINE); | |
585 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
586 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
587 | } | |
588 | ||
7a291083 JBT |
589 | skb = skb_array[skb_index]; |
590 | skb_array[skb_index] = NULL; | |
591 | return skb; | |
592 | } | |
593 | ||
594 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
595 | int arr_len, int wqe_index) | |
596 | { | |
597 | struct sk_buff *skb; | |
598 | void *pref; | |
599 | int x; | |
600 | ||
601 | x = wqe_index + 1; | |
602 | x &= (arr_len - 1); | |
603 | ||
604 | pref = skb_array[x]; | |
0b2febf3 HH |
605 | if (pref) { |
606 | prefetchw(pref); | |
607 | prefetchw(pref + EHEA_CACHE_LINE); | |
7a291083 | 608 | |
0b2febf3 HH |
609 | pref = (skb_array[x]->data); |
610 | prefetchw(pref); | |
611 | prefetchw(pref + EHEA_CACHE_LINE); | |
612 | } | |
7a291083 JBT |
613 | |
614 | skb = skb_array[wqe_index]; | |
615 | skb_array[wqe_index] = NULL; | |
616 | return skb; | |
617 | } | |
618 | ||
619 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
620 | struct ehea_cqe *cqe, int *processed_rq2, | |
621 | int *processed_rq3) | |
622 | { | |
623 | struct sk_buff *skb; | |
624 | ||
acbddb59 JBT |
625 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
626 | pr->p_stats.err_tcp_cksum++; | |
627 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
628 | pr->p_stats.err_ip_cksum++; | |
629 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
630 | pr->p_stats.err_frame_crc++; | |
631 | ||
7a291083 JBT |
632 | if (rq == 2) { |
633 | *processed_rq2 += 1; | |
634 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
635 | dev_kfree_skb(skb); | |
636 | } else if (rq == 3) { | |
637 | *processed_rq3 += 1; | |
638 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
639 | dev_kfree_skb(skb); | |
640 | } | |
641 | ||
642 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
58dd8258 | 643 | if (netif_msg_rx_err(pr->port)) { |
8c4877a4 JP |
644 | pr_err("Critical receive error for QP %d. Resetting port.\n", |
645 | pr->qp->init_attr.qp_nr); | |
58dd8258 TK |
646 | ehea_dump(cqe, sizeof(*cqe), "CQE"); |
647 | } | |
2f69ae01 | 648 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
649 | return 1; |
650 | } | |
651 | ||
652 | return 0; | |
653 | } | |
654 | ||
bea3348e SH |
655 | static int ehea_proc_rwqes(struct net_device *dev, |
656 | struct ehea_port_res *pr, | |
657 | int budget) | |
7a291083 | 658 | { |
18604c54 | 659 | struct ehea_port *port = pr->port; |
7a291083 JBT |
660 | struct ehea_qp *qp = pr->qp; |
661 | struct ehea_cqe *cqe; | |
662 | struct sk_buff *skb; | |
663 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
664 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
665 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
666 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
667 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
668 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
669 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
ce45b873 | 670 | u64 processed_bytes = 0; |
bea3348e | 671 | int wqe_index, last_wqe_index, rq, port_reset; |
7a291083 JBT |
672 | |
673 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
674 | last_wqe_index = 0; | |
7a291083 | 675 | |
7a291083 | 676 | cqe = ehea_poll_rq1(qp, &wqe_index); |
bea3348e | 677 | while ((processed < budget) && cqe) { |
7a291083 JBT |
678 | ehea_inc_rq1(qp); |
679 | processed_rq1++; | |
680 | processed++; | |
7a291083 JBT |
681 | if (netif_msg_rx_status(port)) |
682 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
683 | ||
684 | last_wqe_index = wqe_index; | |
685 | rmb(); | |
686 | if (!ehea_check_cqe(cqe, &rq)) { | |
508d2b5d DM |
687 | if (rq == 1) { |
688 | /* LL RQ1 */ | |
7a291083 JBT |
689 | skb = get_skb_by_index_ll(skb_arr_rq1, |
690 | skb_arr_rq1_len, | |
691 | wqe_index); | |
692 | if (unlikely(!skb)) { | |
782615ae | 693 | netif_info(port, rx_err, dev, |
8c4877a4 | 694 | "LL rq1: skb=NULL\n"); |
18604c54 | 695 | |
bea3348e | 696 | skb = netdev_alloc_skb(dev, |
7a291083 | 697 | EHEA_L_PKT_SIZE); |
5c7e57f7 | 698 | if (!skb) { |
782615ae | 699 | netdev_err(dev, "Not enough memory to allocate skb\n"); |
7a291083 | 700 | break; |
5c7e57f7 | 701 | } |
7a291083 | 702 | } |
508d2b5d | 703 | skb_copy_to_linear_data(skb, ((char *)cqe) + 64, |
d1d25aab | 704 | cqe->num_bytes_transfered - 4); |
b9564468 | 705 | ehea_fill_skb(dev, skb, cqe, pr); |
508d2b5d DM |
706 | } else if (rq == 2) { |
707 | /* RQ2 */ | |
7a291083 JBT |
708 | skb = get_skb_by_index(skb_arr_rq2, |
709 | skb_arr_rq2_len, cqe); | |
710 | if (unlikely(!skb)) { | |
8c4877a4 JP |
711 | netif_err(port, rx_err, dev, |
712 | "rq2: skb=NULL\n"); | |
7a291083 JBT |
713 | break; |
714 | } | |
b9564468 | 715 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 | 716 | processed_rq2++; |
508d2b5d DM |
717 | } else { |
718 | /* RQ3 */ | |
7a291083 JBT |
719 | skb = get_skb_by_index(skb_arr_rq3, |
720 | skb_arr_rq3_len, cqe); | |
721 | if (unlikely(!skb)) { | |
8c4877a4 JP |
722 | netif_err(port, rx_err, dev, |
723 | "rq3: skb=NULL\n"); | |
7a291083 JBT |
724 | break; |
725 | } | |
b9564468 | 726 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 JBT |
727 | processed_rq3++; |
728 | } | |
729 | ||
ce45b873 | 730 | processed_bytes += skb->len; |
3428414f AB |
731 | |
732 | if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) | |
733 | __vlan_hwaccel_put_tag(skb, cqe->vlan_tag); | |
734 | ||
735 | napi_gro_receive(&pr->napi, skb); | |
18604c54 | 736 | } else { |
acbddb59 | 737 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
738 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
739 | &processed_rq2, | |
740 | &processed_rq3); | |
741 | if (port_reset) | |
742 | break; | |
743 | } | |
744 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
745 | } | |
746 | ||
7a291083 | 747 | pr->rx_packets += processed; |
ce45b873 | 748 | pr->rx_bytes += processed_bytes; |
7a291083 JBT |
749 | |
750 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
751 | ehea_refill_rq2(pr, processed_rq2); | |
752 | ehea_refill_rq3(pr, processed_rq3); | |
753 | ||
bea3348e | 754 | return processed; |
7a291083 JBT |
755 | } |
756 | ||
2928db4c AD |
757 | #define SWQE_RESTART_CHECK 0xdeadbeaff00d0000ull |
758 | ||
759 | static void reset_sq_restart_flag(struct ehea_port *port) | |
760 | { | |
761 | int i; | |
762 | ||
723f28e4 | 763 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c AD |
764 | struct ehea_port_res *pr = &port->port_res[i]; |
765 | pr->sq_restart_flag = 0; | |
766 | } | |
a8bb69f7 | 767 | wake_up(&port->restart_wq); |
2928db4c AD |
768 | } |
769 | ||
770 | static void check_sqs(struct ehea_port *port) | |
771 | { | |
772 | struct ehea_swqe *swqe; | |
773 | int swqe_index; | |
774 | int i, k; | |
775 | ||
723f28e4 | 776 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c | 777 | struct ehea_port_res *pr = &port->port_res[i]; |
a8bb69f7 | 778 | int ret; |
2928db4c AD |
779 | k = 0; |
780 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
781 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
782 | atomic_dec(&pr->swqe_avail); | |
783 | ||
784 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
785 | swqe->wr_id = SWQE_RESTART_CHECK; | |
786 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
787 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT; | |
788 | swqe->immediate_data_length = 80; | |
789 | ||
790 | ehea_post_swqe(pr->qp, swqe); | |
791 | ||
a8bb69f7 BL |
792 | ret = wait_event_timeout(port->restart_wq, |
793 | pr->sq_restart_flag == 0, | |
794 | msecs_to_jiffies(100)); | |
795 | ||
796 | if (!ret) { | |
8c4877a4 | 797 | pr_err("HW/SW queues out of sync\n"); |
a8bb69f7 BL |
798 | ehea_schedule_port_reset(pr->port); |
799 | return; | |
2928db4c AD |
800 | } |
801 | } | |
2928db4c AD |
802 | } |
803 | ||
804 | ||
18604c54 | 805 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 806 | { |
acbddb59 | 807 | struct sk_buff *skb; |
7a291083 JBT |
808 | struct ehea_cq *send_cq = pr->send_cq; |
809 | struct ehea_cqe *cqe; | |
18604c54 | 810 | int quota = my_quota; |
7a291083 JBT |
811 | int cqe_counter = 0; |
812 | int swqe_av = 0; | |
acbddb59 | 813 | int index; |
b9564468 AB |
814 | struct netdev_queue *txq = netdev_get_tx_queue(pr->port->netdev, |
815 | pr - &pr->port->port_res[0]); | |
7a291083 | 816 | |
18604c54 | 817 | cqe = ehea_poll_cq(send_cq); |
508d2b5d | 818 | while (cqe && (quota > 0)) { |
18604c54 JBT |
819 | ehea_inc_cq(send_cq); |
820 | ||
7a291083 JBT |
821 | cqe_counter++; |
822 | rmb(); | |
2928db4c AD |
823 | |
824 | if (cqe->wr_id == SWQE_RESTART_CHECK) { | |
825 | pr->sq_restart_flag = 1; | |
826 | swqe_av++; | |
827 | break; | |
828 | } | |
829 | ||
7a291083 | 830 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { |
8c4877a4 JP |
831 | pr_err("Bad send completion status=0x%04X\n", |
832 | cqe->status); | |
ea96ceac | 833 | |
7a291083 JBT |
834 | if (netif_msg_tx_err(pr->port)) |
835 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
ea96ceac TK |
836 | |
837 | if (cqe->status & EHEA_CQE_STAT_RESET_MASK) { | |
8c4877a4 | 838 | pr_err("Resetting port\n"); |
ea96ceac TK |
839 | ehea_schedule_port_reset(pr->port); |
840 | break; | |
841 | } | |
7a291083 JBT |
842 | } |
843 | ||
844 | if (netif_msg_tx_done(pr->port)) | |
845 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
846 | ||
847 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
848 | == EHEA_SWQE2_TYPE)) { |
849 | ||
850 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
851 | skb = pr->sq_skba.arr[index]; | |
852 | dev_kfree_skb(skb); | |
853 | pr->sq_skba.arr[index] = NULL; | |
854 | } | |
7a291083 JBT |
855 | |
856 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
857 | quota--; | |
18604c54 JBT |
858 | |
859 | cqe = ehea_poll_cq(send_cq); | |
ee289b64 | 860 | } |
7a291083 JBT |
861 | |
862 | ehea_update_feca(send_cq, cqe_counter); | |
863 | atomic_add(swqe_av, &pr->swqe_avail); | |
864 | ||
b9564468 AB |
865 | if (unlikely(netif_tx_queue_stopped(txq) && |
866 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))) { | |
867 | __netif_tx_lock(txq, smp_processor_id()); | |
868 | if (netif_tx_queue_stopped(txq) && | |
869 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th)) | |
870 | netif_tx_wake_queue(txq); | |
871 | __netif_tx_unlock(txq); | |
7a291083 | 872 | } |
b9564468 | 873 | |
5b27d427 | 874 | wake_up(&pr->port->swqe_avail_wq); |
7a291083 | 875 | |
18604c54 | 876 | return cqe; |
7a291083 JBT |
877 | } |
878 | ||
bea3348e | 879 | #define EHEA_POLL_MAX_CQES 65535 |
18604c54 | 880 | |
bea3348e | 881 | static int ehea_poll(struct napi_struct *napi, int budget) |
7a291083 | 882 | { |
508d2b5d DM |
883 | struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, |
884 | napi); | |
bea3348e | 885 | struct net_device *dev = pr->port->netdev; |
18604c54 JBT |
886 | struct ehea_cqe *cqe; |
887 | struct ehea_cqe *cqe_skb = NULL; | |
222ca96b | 888 | int wqe_index; |
bea3348e | 889 | int rx = 0; |
18604c54 | 890 | |
bea3348e | 891 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
222ca96b | 892 | rx += ehea_proc_rwqes(dev, pr, budget - rx); |
bea3348e | 893 | |
222ca96b | 894 | while (rx != budget) { |
288379f0 | 895 | napi_complete(napi); |
18604c54 JBT |
896 | ehea_reset_cq_ep(pr->recv_cq); |
897 | ehea_reset_cq_ep(pr->send_cq); | |
898 | ehea_reset_cq_n1(pr->recv_cq); | |
899 | ehea_reset_cq_n1(pr->send_cq); | |
a91fb143 | 900 | rmb(); |
18604c54 JBT |
901 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); |
902 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
903 | ||
e542aa6b | 904 | if (!cqe && !cqe_skb) |
bea3348e | 905 | return rx; |
18604c54 | 906 | |
288379f0 | 907 | if (!napi_reschedule(napi)) |
bea3348e | 908 | return rx; |
18604c54 | 909 | |
bea3348e SH |
910 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
911 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
912 | } | |
e542aa6b | 913 | |
bea3348e | 914 | return rx; |
7a291083 JBT |
915 | } |
916 | ||
8d22c971 JBT |
917 | #ifdef CONFIG_NET_POLL_CONTROLLER |
918 | static void ehea_netpoll(struct net_device *dev) | |
919 | { | |
920 | struct ehea_port *port = netdev_priv(dev); | |
bea3348e | 921 | int i; |
8d22c971 | 922 | |
bea3348e | 923 | for (i = 0; i < port->num_def_qps; i++) |
288379f0 | 924 | napi_schedule(&port->port_res[i].napi); |
8d22c971 JBT |
925 | } |
926 | #endif | |
927 | ||
7d12e780 | 928 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
929 | { |
930 | struct ehea_port_res *pr = param; | |
18604c54 | 931 | |
288379f0 | 932 | napi_schedule(&pr->napi); |
18604c54 | 933 | |
7a291083 JBT |
934 | return IRQ_HANDLED; |
935 | } | |
936 | ||
7d12e780 | 937 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
938 | { |
939 | struct ehea_port *port = param; | |
940 | struct ehea_eqe *eqe; | |
d2db9eea | 941 | struct ehea_qp *qp; |
7a291083 | 942 | u32 qp_token; |
ea96ceac TK |
943 | u64 resource_type, aer, aerr; |
944 | int reset_port = 0; | |
7a291083 JBT |
945 | |
946 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 947 | |
7a291083 | 948 | while (eqe) { |
7a291083 | 949 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
8c4877a4 JP |
950 | pr_err("QP aff_err: entry=0x%llx, token=0x%x\n", |
951 | eqe->entry, qp_token); | |
d2db9eea JBT |
952 | |
953 | qp = port->port_res[qp_token].qp; | |
ea96ceac TK |
954 | |
955 | resource_type = ehea_error_data(port->adapter, qp->fw_handle, | |
956 | &aer, &aerr); | |
957 | ||
958 | if (resource_type == EHEA_AER_RESTYPE_QP) { | |
959 | if ((aer & EHEA_AER_RESET_MASK) || | |
960 | (aerr & EHEA_AERR_RESET_MASK)) | |
961 | reset_port = 1; | |
962 | } else | |
963 | reset_port = 1; /* Reset in case of CQ or EQ error */ | |
964 | ||
bb3a6449 | 965 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
966 | } |
967 | ||
ea96ceac | 968 | if (reset_port) { |
8c4877a4 | 969 | pr_err("Resetting port\n"); |
ea96ceac TK |
970 | ehea_schedule_port_reset(port); |
971 | } | |
d2db9eea | 972 | |
7a291083 JBT |
973 | return IRQ_HANDLED; |
974 | } | |
975 | ||
976 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
977 | int logical_port) | |
978 | { | |
979 | int i; | |
980 | ||
1acf2318 | 981 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 | 982 | if (adapter->port[i]) |
d1d25aab | 983 | if (adapter->port[i]->logical_port_id == logical_port) |
41b69c70 | 984 | return adapter->port[i]; |
7a291083 JBT |
985 | return NULL; |
986 | } | |
987 | ||
988 | int ehea_sense_port_attr(struct ehea_port *port) | |
989 | { | |
990 | int ret; | |
991 | u64 hret; | |
992 | struct hcp_ehea_port_cb0 *cb0; | |
993 | ||
508d2b5d | 994 | /* may be called via ehea_neq_tasklet() */ |
3faf2693 | 995 | cb0 = (void *)get_zeroed_page(GFP_ATOMIC); |
508d2b5d | 996 | if (!cb0) { |
8c4877a4 | 997 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
998 | ret = -ENOMEM; |
999 | goto out; | |
1000 | } | |
1001 | ||
1002 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1003 | port->logical_port_id, H_PORT_CB0, | |
1004 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
1005 | cb0); | |
1006 | if (hret != H_SUCCESS) { | |
1007 | ret = -EIO; | |
1008 | goto out_free; | |
1009 | } | |
1010 | ||
1011 | /* MAC address */ | |
1012 | port->mac_addr = cb0->port_mac_addr << 16; | |
1013 | ||
508d2b5d | 1014 | if (!is_valid_ether_addr((u8 *)&port->mac_addr)) { |
7a291083 JBT |
1015 | ret = -EADDRNOTAVAIL; |
1016 | goto out_free; | |
1017 | } | |
1018 | ||
1019 | /* Port speed */ | |
1020 | switch (cb0->port_speed) { | |
1021 | case H_SPEED_10M_H: | |
1022 | port->port_speed = EHEA_SPEED_10M; | |
1023 | port->full_duplex = 0; | |
1024 | break; | |
1025 | case H_SPEED_10M_F: | |
1026 | port->port_speed = EHEA_SPEED_10M; | |
1027 | port->full_duplex = 1; | |
1028 | break; | |
1029 | case H_SPEED_100M_H: | |
1030 | port->port_speed = EHEA_SPEED_100M; | |
1031 | port->full_duplex = 0; | |
1032 | break; | |
1033 | case H_SPEED_100M_F: | |
1034 | port->port_speed = EHEA_SPEED_100M; | |
1035 | port->full_duplex = 1; | |
1036 | break; | |
1037 | case H_SPEED_1G_F: | |
1038 | port->port_speed = EHEA_SPEED_1G; | |
1039 | port->full_duplex = 1; | |
1040 | break; | |
1041 | case H_SPEED_10G_F: | |
1042 | port->port_speed = EHEA_SPEED_10G; | |
1043 | port->full_duplex = 1; | |
1044 | break; | |
1045 | default: | |
1046 | port->port_speed = 0; | |
1047 | port->full_duplex = 0; | |
1048 | break; | |
1049 | } | |
1050 | ||
e919b593 | 1051 | port->autoneg = 1; |
18604c54 | 1052 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 1053 | |
7a291083 | 1054 | /* Number of default QPs */ |
18604c54 JBT |
1055 | if (use_mcs) |
1056 | port->num_def_qps = cb0->num_default_qps; | |
1057 | else | |
1058 | port->num_def_qps = 1; | |
7a291083 JBT |
1059 | |
1060 | if (!port->num_def_qps) { | |
1061 | ret = -EINVAL; | |
1062 | goto out_free; | |
1063 | } | |
1064 | ||
7a291083 JBT |
1065 | ret = 0; |
1066 | out_free: | |
1067 | if (ret || netif_msg_probe(port)) | |
1068 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
3faf2693 | 1069 | free_page((unsigned long)cb0); |
7a291083 JBT |
1070 | out: |
1071 | return ret; | |
1072 | } | |
1073 | ||
1074 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
1075 | { | |
1076 | struct hcp_ehea_port_cb4 *cb4; | |
1077 | u64 hret; | |
1078 | int ret = 0; | |
1079 | ||
3faf2693 | 1080 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1081 | if (!cb4) { |
8c4877a4 | 1082 | pr_err("no mem for cb4\n"); |
7a291083 JBT |
1083 | ret = -ENOMEM; |
1084 | goto out; | |
1085 | } | |
1086 | ||
1087 | cb4->port_speed = port_speed; | |
1088 | ||
1089 | netif_carrier_off(port->netdev); | |
1090 | ||
1091 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1092 | port->logical_port_id, | |
1093 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
1094 | if (hret == H_SUCCESS) { | |
1095 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
1096 | ||
1097 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1098 | port->logical_port_id, | |
1099 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
1100 | cb4); | |
1101 | if (hret == H_SUCCESS) { | |
1102 | switch (cb4->port_speed) { | |
1103 | case H_SPEED_10M_H: | |
1104 | port->port_speed = EHEA_SPEED_10M; | |
1105 | port->full_duplex = 0; | |
1106 | break; | |
1107 | case H_SPEED_10M_F: | |
1108 | port->port_speed = EHEA_SPEED_10M; | |
1109 | port->full_duplex = 1; | |
1110 | break; | |
1111 | case H_SPEED_100M_H: | |
1112 | port->port_speed = EHEA_SPEED_100M; | |
1113 | port->full_duplex = 0; | |
1114 | break; | |
1115 | case H_SPEED_100M_F: | |
1116 | port->port_speed = EHEA_SPEED_100M; | |
1117 | port->full_duplex = 1; | |
1118 | break; | |
1119 | case H_SPEED_1G_F: | |
1120 | port->port_speed = EHEA_SPEED_1G; | |
1121 | port->full_duplex = 1; | |
1122 | break; | |
1123 | case H_SPEED_10G_F: | |
1124 | port->port_speed = EHEA_SPEED_10G; | |
1125 | port->full_duplex = 1; | |
1126 | break; | |
1127 | default: | |
1128 | port->port_speed = 0; | |
1129 | port->full_duplex = 0; | |
1130 | break; | |
1131 | } | |
1132 | } else { | |
8c4877a4 | 1133 | pr_err("Failed sensing port speed\n"); |
7a291083 JBT |
1134 | ret = -EIO; |
1135 | } | |
1136 | } else { | |
1137 | if (hret == H_AUTHORITY) { | |
8c4877a4 | 1138 | pr_info("Hypervisor denied setting port speed\n"); |
7a291083 JBT |
1139 | ret = -EPERM; |
1140 | } else { | |
1141 | ret = -EIO; | |
8c4877a4 | 1142 | pr_err("Failed setting port speed\n"); |
7a291083 JBT |
1143 | } |
1144 | } | |
8759cf76 JBT |
1145 | if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP)) |
1146 | netif_carrier_on(port->netdev); | |
1147 | ||
3faf2693 | 1148 | free_page((unsigned long)cb4); |
7a291083 JBT |
1149 | out: |
1150 | return ret; | |
1151 | } | |
1152 | ||
1153 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
1154 | { | |
1155 | int ret; | |
1156 | u8 ec; | |
1157 | u8 portnum; | |
1158 | struct ehea_port *port; | |
8c4877a4 | 1159 | struct net_device *dev; |
7a291083 JBT |
1160 | |
1161 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
1162 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
1163 | port = ehea_get_port(adapter, portnum); | |
8c4877a4 | 1164 | dev = port->netdev; |
7a291083 JBT |
1165 | |
1166 | switch (ec) { | |
1167 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
1168 | ||
1169 | if (!port) { | |
8c4877a4 | 1170 | netdev_err(dev, "unknown portnum %x\n", portnum); |
7a291083 JBT |
1171 | break; |
1172 | } | |
1173 | ||
1174 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
8c4877a4 | 1175 | if (!netif_carrier_ok(dev)) { |
1e1675cc | 1176 | ret = ehea_sense_port_attr(port); |
7a291083 | 1177 | if (ret) { |
8c4877a4 | 1178 | netdev_err(dev, "failed resensing port attributes\n"); |
7a291083 JBT |
1179 | break; |
1180 | } | |
1181 | ||
8c4877a4 JP |
1182 | netif_info(port, link, dev, |
1183 | "Logical port up: %dMbps %s Duplex\n", | |
1184 | port->port_speed, | |
1185 | port->full_duplex == 1 ? | |
1186 | "Full" : "Half"); | |
7a291083 | 1187 | |
8c4877a4 JP |
1188 | netif_carrier_on(dev); |
1189 | netif_wake_queue(dev); | |
7a291083 JBT |
1190 | } |
1191 | } else | |
8c4877a4 JP |
1192 | if (netif_carrier_ok(dev)) { |
1193 | netif_info(port, link, dev, | |
1194 | "Logical port down\n"); | |
1195 | netif_carrier_off(dev); | |
b9564468 | 1196 | netif_tx_disable(dev); |
7a291083 JBT |
1197 | } |
1198 | ||
1199 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
8759cf76 | 1200 | port->phy_link = EHEA_PHY_LINK_UP; |
8c4877a4 JP |
1201 | netif_info(port, link, dev, |
1202 | "Physical port up\n"); | |
8759cf76 | 1203 | if (prop_carrier_state) |
8c4877a4 | 1204 | netif_carrier_on(dev); |
7a291083 | 1205 | } else { |
8759cf76 | 1206 | port->phy_link = EHEA_PHY_LINK_DOWN; |
8c4877a4 JP |
1207 | netif_info(port, link, dev, |
1208 | "Physical port down\n"); | |
8759cf76 | 1209 | if (prop_carrier_state) |
8c4877a4 | 1210 | netif_carrier_off(dev); |
7a291083 JBT |
1211 | } |
1212 | ||
1213 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
8c4877a4 JP |
1214 | netdev_info(dev, |
1215 | "External switch port is primary port\n"); | |
7a291083 | 1216 | else |
8c4877a4 JP |
1217 | netdev_info(dev, |
1218 | "External switch port is backup port\n"); | |
7a291083 JBT |
1219 | |
1220 | break; | |
1221 | case EHEA_EC_ADAPTER_MALFUNC: | |
8c4877a4 | 1222 | netdev_err(dev, "Adapter malfunction\n"); |
7a291083 JBT |
1223 | break; |
1224 | case EHEA_EC_PORT_MALFUNC: | |
8c4877a4 JP |
1225 | netdev_info(dev, "Port malfunction\n"); |
1226 | netif_carrier_off(dev); | |
b9564468 | 1227 | netif_tx_disable(dev); |
7a291083 JBT |
1228 | break; |
1229 | default: | |
8c4877a4 | 1230 | netdev_err(dev, "unknown event code %x, eqe=0x%llX\n", ec, eqe); |
7a291083 JBT |
1231 | break; |
1232 | } | |
1233 | } | |
1234 | ||
1235 | static void ehea_neq_tasklet(unsigned long data) | |
1236 | { | |
508d2b5d | 1237 | struct ehea_adapter *adapter = (struct ehea_adapter *)data; |
7a291083 JBT |
1238 | struct ehea_eqe *eqe; |
1239 | u64 event_mask; | |
1240 | ||
1241 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1242 | pr_debug("eqe=%p\n", eqe); |
7a291083 JBT |
1243 | |
1244 | while (eqe) { | |
8c4877a4 | 1245 | pr_debug("*eqe=%lx\n", (unsigned long) eqe->entry); |
7a291083 JBT |
1246 | ehea_parse_eqe(adapter, eqe->entry); |
1247 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1248 | pr_debug("next eqe=%p\n", eqe); |
7a291083 JBT |
1249 | } |
1250 | ||
1251 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
1252 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
1253 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
1254 | ||
1255 | ehea_h_reset_events(adapter->handle, | |
1256 | adapter->neq->fw_handle, event_mask); | |
1257 | } | |
1258 | ||
7d12e780 | 1259 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
1260 | { |
1261 | struct ehea_adapter *adapter = param; | |
1262 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
1263 | return IRQ_HANDLED; | |
1264 | } | |
1265 | ||
1266 | ||
1267 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
1268 | { | |
1269 | int ret; | |
1270 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
1271 | ||
f76957fc | 1272 | ehea_init_fill_rq1(pr, pr->rq1_skba.len); |
7a291083 | 1273 | |
e2878806 | 1274 | ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); |
7a291083 JBT |
1275 | |
1276 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
1277 | ||
1278 | return ret; | |
1279 | } | |
1280 | ||
1281 | static int ehea_reg_interrupts(struct net_device *dev) | |
1282 | { | |
1283 | struct ehea_port *port = netdev_priv(dev); | |
1284 | struct ehea_port_res *pr; | |
1285 | int i, ret; | |
1286 | ||
7a291083 JBT |
1287 | |
1288 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
1289 | dev->name); | |
1290 | ||
6b08f3ae | 1291 | ret = ibmebus_request_irq(port->qp_eq->attr.ist1, |
7a291083 | 1292 | ehea_qp_aff_irq_handler, |
38515e90 | 1293 | IRQF_DISABLED, port->int_aff_name, port); |
7a291083 | 1294 | if (ret) { |
8c4877a4 JP |
1295 | netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n", |
1296 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1297 | goto out_free_qpeq; |
1298 | } | |
1299 | ||
8c4877a4 JP |
1300 | netif_info(port, ifup, dev, |
1301 | "irq_handle 0x%X for function qp_aff_irq_handler registered\n", | |
1302 | port->qp_eq->attr.ist1); | |
7a291083 | 1303 | |
18604c54 | 1304 | |
723f28e4 | 1305 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
1306 | pr = &port->port_res[i]; |
1307 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 | 1308 | "%s-queue%d", dev->name, i); |
6b08f3ae | 1309 | ret = ibmebus_request_irq(pr->eq->attr.ist1, |
18604c54 | 1310 | ehea_recv_irq_handler, |
38515e90 | 1311 | IRQF_DISABLED, pr->int_send_name, |
7a291083 JBT |
1312 | pr); |
1313 | if (ret) { | |
8c4877a4 JP |
1314 | netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n", |
1315 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1316 | goto out_free_req; |
1317 | } | |
8c4877a4 JP |
1318 | netif_info(port, ifup, dev, |
1319 | "irq_handle 0x%X for function ehea_queue_int %d registered\n", | |
1320 | pr->eq->attr.ist1, i); | |
7a291083 JBT |
1321 | } |
1322 | out: | |
1323 | return ret; | |
1324 | ||
18604c54 | 1325 | |
7a291083 JBT |
1326 | out_free_req: |
1327 | while (--i >= 0) { | |
18604c54 | 1328 | u32 ist = port->port_res[i].eq->attr.ist1; |
6b08f3ae | 1329 | ibmebus_free_irq(ist, &port->port_res[i]); |
7a291083 | 1330 | } |
18604c54 | 1331 | |
7a291083 | 1332 | out_free_qpeq: |
6b08f3ae | 1333 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 | 1334 | i = port->num_def_qps; |
18604c54 | 1335 | |
7a291083 | 1336 | goto out; |
18604c54 | 1337 | |
7a291083 JBT |
1338 | } |
1339 | ||
1340 | static void ehea_free_interrupts(struct net_device *dev) | |
1341 | { | |
1342 | struct ehea_port *port = netdev_priv(dev); | |
1343 | struct ehea_port_res *pr; | |
1344 | int i; | |
1345 | ||
1346 | /* send */ | |
18604c54 | 1347 | |
723f28e4 | 1348 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 | 1349 | pr = &port->port_res[i]; |
6b08f3ae | 1350 | ibmebus_free_irq(pr->eq->attr.ist1, pr); |
8c4877a4 JP |
1351 | netif_info(port, intr, dev, |
1352 | "free send irq for res %d with handle 0x%X\n", | |
1353 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1354 | } |
1355 | ||
1356 | /* associated events */ | |
6b08f3ae | 1357 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
8c4877a4 JP |
1358 | netif_info(port, intr, dev, |
1359 | "associated event interrupt for handle 0x%X freed\n", | |
1360 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1361 | } |
1362 | ||
1363 | static int ehea_configure_port(struct ehea_port *port) | |
1364 | { | |
1365 | int ret, i; | |
1366 | u64 hret, mask; | |
1367 | struct hcp_ehea_port_cb0 *cb0; | |
1368 | ||
1369 | ret = -ENOMEM; | |
3faf2693 | 1370 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1371 | if (!cb0) |
1372 | goto out; | |
1373 | ||
1374 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1375 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1376 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1377 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1378 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1379 | PXLY_RC_VLAN_FILTER) | |
1380 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1381 | ||
18604c54 JBT |
1382 | for (i = 0; i < port->num_mcs; i++) |
1383 | if (use_mcs) | |
1384 | cb0->default_qpn_arr[i] = | |
1385 | port->port_res[i].qp->init_attr.qp_nr; | |
1386 | else | |
1387 | cb0->default_qpn_arr[i] = | |
1388 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1389 | |
7a291083 JBT |
1390 | if (netif_msg_ifup(port)) |
1391 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1392 | ||
1393 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1394 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1395 | ||
1396 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1397 | port->logical_port_id, | |
1398 | H_PORT_CB0, mask, cb0); | |
1399 | ret = -EIO; | |
1400 | if (hret != H_SUCCESS) | |
1401 | goto out_free; | |
1402 | ||
1403 | ret = 0; | |
1404 | ||
1405 | out_free: | |
3faf2693 | 1406 | free_page((unsigned long)cb0); |
7a291083 JBT |
1407 | out: |
1408 | return ret; | |
1409 | } | |
1410 | ||
1886e5d2 | 1411 | static int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1412 | { |
e542aa6b | 1413 | int ret; |
7a291083 JBT |
1414 | struct ehea_adapter *adapter = pr->port->adapter; |
1415 | ||
e542aa6b JBT |
1416 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1417 | if (ret) | |
7a291083 JBT |
1418 | goto out; |
1419 | ||
e542aa6b JBT |
1420 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1421 | if (ret) | |
1422 | goto out_free; | |
7a291083 JBT |
1423 | |
1424 | return 0; | |
1425 | ||
e542aa6b JBT |
1426 | out_free: |
1427 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1428 | out: |
8c4877a4 | 1429 | pr_err("Generating SMRS failed\n"); |
7a291083 JBT |
1430 | return -EIO; |
1431 | } | |
1432 | ||
1886e5d2 | 1433 | static int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1434 | { |
8e95a202 JP |
1435 | if ((ehea_rem_mr(&pr->send_mr)) || |
1436 | (ehea_rem_mr(&pr->recv_mr))) | |
e542aa6b JBT |
1437 | return -EIO; |
1438 | else | |
1439 | return 0; | |
7a291083 JBT |
1440 | } |
1441 | ||
1442 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1443 | { | |
508d2b5d | 1444 | int arr_size = sizeof(void *) * max_q_entries; |
7a291083 | 1445 | |
89bf67f1 | 1446 | q_skba->arr = vzalloc(arr_size); |
7a291083 JBT |
1447 | if (!q_skba->arr) |
1448 | return -ENOMEM; | |
1449 | ||
7a291083 JBT |
1450 | q_skba->len = max_q_entries; |
1451 | q_skba->index = 0; | |
1452 | q_skba->os_skbs = 0; | |
1453 | ||
1454 | return 0; | |
1455 | } | |
1456 | ||
1457 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1458 | struct port_res_cfg *pr_cfg, int queue_token) | |
1459 | { | |
1460 | struct ehea_adapter *adapter = port->adapter; | |
1461 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1462 | struct ehea_qp_init_attr *init_attr = NULL; | |
1463 | int ret = -EIO; | |
ce45b873 BL |
1464 | u64 tx_bytes, rx_bytes, tx_packets, rx_packets; |
1465 | ||
1466 | tx_bytes = pr->tx_bytes; | |
1467 | tx_packets = pr->tx_packets; | |
1468 | rx_bytes = pr->rx_bytes; | |
1469 | rx_packets = pr->rx_packets; | |
7a291083 JBT |
1470 | |
1471 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1472 | ||
ce45b873 BL |
1473 | pr->tx_bytes = rx_bytes; |
1474 | pr->tx_packets = tx_packets; | |
1475 | pr->rx_bytes = rx_bytes; | |
1476 | pr->rx_packets = rx_packets; | |
1477 | ||
7a291083 | 1478 | pr->port = port; |
7a291083 | 1479 | |
18604c54 JBT |
1480 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1481 | if (!pr->eq) { | |
8c4877a4 | 1482 | pr_err("create_eq failed (eq)\n"); |
7a291083 JBT |
1483 | goto out_free; |
1484 | } | |
1485 | ||
1486 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1487 | pr->eq->fw_handle, |
7a291083 JBT |
1488 | port->logical_port_id); |
1489 | if (!pr->recv_cq) { | |
8c4877a4 | 1490 | pr_err("create_cq failed (cq_recv)\n"); |
7a291083 JBT |
1491 | goto out_free; |
1492 | } | |
1493 | ||
1494 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1495 | pr->eq->fw_handle, |
7a291083 JBT |
1496 | port->logical_port_id); |
1497 | if (!pr->send_cq) { | |
8c4877a4 | 1498 | pr_err("create_cq failed (cq_send)\n"); |
7a291083 JBT |
1499 | goto out_free; |
1500 | } | |
1501 | ||
1502 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1503 | pr_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d\n", |
1504 | pr->send_cq->attr.act_nr_of_cqes, | |
1505 | pr->recv_cq->attr.act_nr_of_cqes); | |
7a291083 JBT |
1506 | |
1507 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1508 | if (!init_attr) { | |
1509 | ret = -ENOMEM; | |
8c4877a4 | 1510 | pr_err("no mem for ehea_qp_init_attr\n"); |
7a291083 JBT |
1511 | goto out_free; |
1512 | } | |
1513 | ||
1514 | init_attr->low_lat_rq1 = 1; | |
1515 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1516 | init_attr->rq_count = 3; | |
1517 | init_attr->qp_token = queue_token; | |
1518 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1519 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1520 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1521 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1522 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1523 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1524 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1525 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1526 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1527 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1528 | init_attr->port_nr = port->logical_port_id; | |
1529 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1530 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1531 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1532 | ||
1533 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1534 | if (!pr->qp) { | |
8c4877a4 | 1535 | pr_err("create_qp failed\n"); |
7a291083 JBT |
1536 | ret = -EIO; |
1537 | goto out_free; | |
1538 | } | |
1539 | ||
1540 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1541 | pr_info("QP: qp_nr=%d\n act_nr_snd_wqe=%d\n nr_rwqe_rq1=%d\n nr_rwqe_rq2=%d\n nr_rwqe_rq3=%d\n", |
1542 | init_attr->qp_nr, | |
1543 | init_attr->act_nr_send_wqes, | |
1544 | init_attr->act_nr_rwqes_rq1, | |
1545 | init_attr->act_nr_rwqes_rq2, | |
1546 | init_attr->act_nr_rwqes_rq3); | |
7a291083 | 1547 | |
44fb3126 TK |
1548 | pr->sq_skba_size = init_attr->act_nr_send_wqes + 1; |
1549 | ||
1550 | ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size); | |
7a291083 JBT |
1551 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); |
1552 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1553 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1554 | if (ret) | |
1555 | goto out_free; | |
1556 | ||
1557 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1558 | if (ehea_gen_smrs(pr) != 0) { | |
1559 | ret = -EIO; | |
1560 | goto out_free; | |
1561 | } | |
18604c54 | 1562 | |
7a291083 JBT |
1563 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1564 | ||
1565 | kfree(init_attr); | |
18604c54 | 1566 | |
bea3348e | 1567 | netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll, 64); |
18604c54 | 1568 | |
7a291083 JBT |
1569 | ret = 0; |
1570 | goto out; | |
1571 | ||
1572 | out_free: | |
1573 | kfree(init_attr); | |
1574 | vfree(pr->sq_skba.arr); | |
1575 | vfree(pr->rq1_skba.arr); | |
1576 | vfree(pr->rq2_skba.arr); | |
1577 | vfree(pr->rq3_skba.arr); | |
1578 | ehea_destroy_qp(pr->qp); | |
1579 | ehea_destroy_cq(pr->send_cq); | |
1580 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1581 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1582 | out: |
1583 | return ret; | |
1584 | } | |
1585 | ||
1586 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1587 | { | |
1588 | int ret, i; | |
1589 | ||
357eb46d HH |
1590 | if (pr->qp) |
1591 | netif_napi_del(&pr->napi); | |
1592 | ||
7a291083 JBT |
1593 | ret = ehea_destroy_qp(pr->qp); |
1594 | ||
1595 | if (!ret) { | |
1596 | ehea_destroy_cq(pr->send_cq); | |
1597 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1598 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1599 | |
1600 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1601 | if (pr->rq1_skba.arr[i]) | |
1602 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1603 | ||
1604 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1605 | if (pr->rq2_skba.arr[i]) | |
1606 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1607 | ||
1608 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1609 | if (pr->rq3_skba.arr[i]) | |
1610 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1611 | ||
1612 | for (i = 0; i < pr->sq_skba.len; i++) | |
1613 | if (pr->sq_skba.arr[i]) | |
1614 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1615 | ||
1616 | vfree(pr->rq1_skba.arr); | |
1617 | vfree(pr->rq2_skba.arr); | |
1618 | vfree(pr->rq3_skba.arr); | |
1619 | vfree(pr->sq_skba.arr); | |
1620 | ret = ehea_rem_smrs(pr); | |
1621 | } | |
1622 | return ret; | |
1623 | } | |
1624 | ||
13946f5e AB |
1625 | static void write_swqe2_immediate(struct sk_buff *skb, struct ehea_swqe *swqe, |
1626 | u32 lkey) | |
7a291083 | 1627 | { |
e743d313 | 1628 | int skb_data_size = skb_headlen(skb); |
7a291083 JBT |
1629 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; |
1630 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
13946f5e AB |
1631 | unsigned int immediate_len = SWQE2_MAX_IMM; |
1632 | ||
1633 | swqe->descriptors = 0; | |
7a291083 | 1634 | |
13946f5e AB |
1635 | if (skb_is_gso(skb)) { |
1636 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1637 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1638 | /* | |
1639 | * For TSO packets we only copy the headers into the | |
1640 | * immediate area. | |
1641 | */ | |
1642 | immediate_len = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); | |
1643 | } | |
7a291083 | 1644 | |
13946f5e AB |
1645 | if (skb_is_gso(skb) || skb_data_size >= SWQE2_MAX_IMM) { |
1646 | skb_copy_from_linear_data(skb, imm_data, immediate_len); | |
1647 | swqe->immediate_data_length = immediate_len; | |
7a291083 | 1648 | |
13946f5e | 1649 | if (skb_data_size > immediate_len) { |
7a291083 | 1650 | sg1entry->l_key = lkey; |
13946f5e | 1651 | sg1entry->len = skb_data_size - immediate_len; |
44a5b3d5 | 1652 | sg1entry->vaddr = |
13946f5e | 1653 | ehea_map_vaddr(skb->data + immediate_len); |
7a291083 JBT |
1654 | swqe->descriptors++; |
1655 | } | |
1656 | } else { | |
d626f62b | 1657 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1658 | swqe->immediate_data_length = skb_data_size; |
1659 | } | |
1660 | } | |
1661 | ||
1662 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1663 | struct ehea_swqe *swqe, u32 lkey) | |
1664 | { | |
1665 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1666 | skb_frag_t *frag; | |
1667 | int nfrags, sg1entry_contains_frag_data, i; | |
7a291083 JBT |
1668 | |
1669 | nfrags = skb_shinfo(skb)->nr_frags; | |
1670 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
508d2b5d | 1671 | sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list; |
7a291083 JBT |
1672 | sg1entry_contains_frag_data = 0; |
1673 | ||
13946f5e | 1674 | write_swqe2_immediate(skb, swqe, lkey); |
7a291083 JBT |
1675 | |
1676 | /* write descriptors */ | |
1677 | if (nfrags > 0) { | |
1678 | if (swqe->descriptors == 0) { | |
1679 | /* sg1entry not yet used */ | |
1680 | frag = &skb_shinfo(skb)->frags[0]; | |
1681 | ||
1682 | /* copy sg1entry data */ | |
1683 | sg1entry->l_key = lkey; | |
9e903e08 | 1684 | sg1entry->len = skb_frag_size(frag); |
44a5b3d5 | 1685 | sg1entry->vaddr = |
618c4a0a | 1686 | ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1687 | swqe->descriptors++; |
1688 | sg1entry_contains_frag_data = 1; | |
1689 | } | |
1690 | ||
1691 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1692 | ||
1693 | frag = &skb_shinfo(skb)->frags[i]; | |
1694 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1695 | ||
1696 | sgentry->l_key = lkey; | |
0110bba5 | 1697 | sgentry->len = skb_frag_size(frag); |
618c4a0a | 1698 | sgentry->vaddr = ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1699 | swqe->descriptors++; |
1700 | } | |
1701 | } | |
1702 | } | |
1703 | ||
1704 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1705 | { | |
1706 | int ret = 0; | |
1707 | u64 hret; | |
1708 | u8 reg_type; | |
1709 | ||
1710 | /* De/Register untagged packets */ | |
1711 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1712 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1713 | port->logical_port_id, | |
1714 | reg_type, port->mac_addr, 0, hcallid); | |
1715 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1716 | pr_err("%sregistering bc address failed (tagged)\n", |
1717 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1718 | ret = -EIO; |
1719 | goto out_herr; | |
1720 | } | |
1721 | ||
1722 | /* De/Register VLAN packets */ | |
1723 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1724 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1725 | port->logical_port_id, | |
1726 | reg_type, port->mac_addr, 0, hcallid); | |
1727 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1728 | pr_err("%sregistering bc address failed (vlan)\n", |
1729 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1730 | ret = -EIO; |
1731 | } | |
1732 | out_herr: | |
1733 | return ret; | |
1734 | } | |
1735 | ||
1736 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1737 | { | |
1738 | struct ehea_port *port = netdev_priv(dev); | |
1739 | struct sockaddr *mac_addr = sa; | |
1740 | struct hcp_ehea_port_cb0 *cb0; | |
1741 | int ret; | |
1742 | u64 hret; | |
1743 | ||
1744 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1745 | ret = -EADDRNOTAVAIL; | |
1746 | goto out; | |
1747 | } | |
1748 | ||
3faf2693 | 1749 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1750 | if (!cb0) { |
8c4877a4 | 1751 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1752 | ret = -ENOMEM; |
1753 | goto out; | |
1754 | } | |
1755 | ||
1756 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1757 | ||
1758 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1759 | ||
1760 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1761 | port->logical_port_id, H_PORT_CB0, | |
1762 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1763 | if (hret != H_SUCCESS) { | |
1764 | ret = -EIO; | |
1765 | goto out_free; | |
1766 | } | |
1767 | ||
1768 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1769 | ||
1770 | /* Deregister old MAC in pHYP */ | |
00aaea2f JBT |
1771 | if (port->state == EHEA_PORT_UP) { |
1772 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1773 | if (ret) | |
1774 | goto out_upregs; | |
1775 | } | |
7a291083 JBT |
1776 | |
1777 | port->mac_addr = cb0->port_mac_addr << 16; | |
1778 | ||
1779 | /* Register new MAC in pHYP */ | |
00aaea2f JBT |
1780 | if (port->state == EHEA_PORT_UP) { |
1781 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1782 | if (ret) | |
1783 | goto out_upregs; | |
1784 | } | |
7a291083 JBT |
1785 | |
1786 | ret = 0; | |
21eee2dd TK |
1787 | |
1788 | out_upregs: | |
1789 | ehea_update_bcmc_registrations(); | |
7a291083 | 1790 | out_free: |
3faf2693 | 1791 | free_page((unsigned long)cb0); |
7a291083 JBT |
1792 | out: |
1793 | return ret; | |
1794 | } | |
1795 | ||
1796 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1797 | { | |
7674a588 | 1798 | if (hret == H_AUTHORITY) |
8c4877a4 JP |
1799 | pr_info("Hypervisor denied %sabling promiscuous mode\n", |
1800 | enable == 1 ? "en" : "dis"); | |
7674a588 | 1801 | else |
8c4877a4 JP |
1802 | pr_err("failed %sabling promiscuous mode\n", |
1803 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1804 | } |
1805 | ||
1806 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1807 | { | |
1808 | struct ehea_port *port = netdev_priv(dev); | |
1809 | struct hcp_ehea_port_cb7 *cb7; | |
1810 | u64 hret; | |
1811 | ||
aa3bc6c6 | 1812 | if (enable == port->promisc) |
7a291083 JBT |
1813 | return; |
1814 | ||
3faf2693 | 1815 | cb7 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 | 1816 | if (!cb7) { |
8c4877a4 | 1817 | pr_err("no mem for cb7\n"); |
7a291083 JBT |
1818 | goto out; |
1819 | } | |
1820 | ||
1821 | /* Modify Pxs_DUCQPN in CB7 */ | |
1822 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1823 | ||
1824 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1825 | port->logical_port_id, | |
1826 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1827 | if (hret) { | |
1828 | ehea_promiscuous_error(hret, enable); | |
1829 | goto out; | |
1830 | } | |
1831 | ||
1832 | port->promisc = enable; | |
1833 | out: | |
3faf2693 | 1834 | free_page((unsigned long)cb7); |
7a291083 JBT |
1835 | } |
1836 | ||
1837 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1838 | u32 hcallid) | |
1839 | { | |
1840 | u64 hret; | |
1841 | u8 reg_type; | |
1842 | ||
5d384574 TLSC |
1843 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED; |
1844 | if (mc_mac_addr == 0) | |
1845 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1846 | |
1847 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1848 | port->logical_port_id, | |
1849 | reg_type, mc_mac_addr, 0, hcallid); | |
1850 | if (hret) | |
1851 | goto out; | |
1852 | ||
5d384574 TLSC |
1853 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL; |
1854 | if (mc_mac_addr == 0) | |
1855 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1856 | |
1857 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1858 | port->logical_port_id, | |
1859 | reg_type, mc_mac_addr, 0, hcallid); | |
1860 | out: | |
1861 | return hret; | |
1862 | } | |
1863 | ||
1864 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1865 | { | |
1866 | struct ehea_port *port = netdev_priv(dev); | |
1867 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1868 | struct list_head *pos; | |
1869 | struct list_head *temp; | |
1870 | int ret = 0; | |
1871 | u64 hret; | |
1872 | ||
1873 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1874 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1875 | ||
1876 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1877 | H_DEREG_BCMC); | |
1878 | if (hret) { | |
8c4877a4 | 1879 | pr_err("failed deregistering mcast MAC\n"); |
7a291083 JBT |
1880 | ret = -EIO; |
1881 | } | |
1882 | ||
1883 | list_del(pos); | |
1884 | kfree(mc_entry); | |
1885 | } | |
1886 | return ret; | |
1887 | } | |
1888 | ||
1889 | static void ehea_allmulti(struct net_device *dev, int enable) | |
1890 | { | |
1891 | struct ehea_port *port = netdev_priv(dev); | |
1892 | u64 hret; | |
1893 | ||
1894 | if (!port->allmulti) { | |
1895 | if (enable) { | |
1896 | /* Enable ALLMULTI */ | |
1897 | ehea_drop_multicast_list(dev); | |
1898 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
1899 | if (!hret) | |
1900 | port->allmulti = 1; | |
1901 | else | |
8c4877a4 JP |
1902 | netdev_err(dev, |
1903 | "failed enabling IFF_ALLMULTI\n"); | |
7a291083 | 1904 | } |
5d384574 | 1905 | } else { |
7a291083 JBT |
1906 | if (!enable) { |
1907 | /* Disable ALLMULTI */ | |
1908 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
1909 | if (!hret) | |
1910 | port->allmulti = 0; | |
1911 | else | |
8c4877a4 JP |
1912 | netdev_err(dev, |
1913 | "failed disabling IFF_ALLMULTI\n"); | |
7a291083 | 1914 | } |
5d384574 | 1915 | } |
7a291083 JBT |
1916 | } |
1917 | ||
508d2b5d | 1918 | static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) |
7a291083 JBT |
1919 | { |
1920 | struct ehea_mc_list *ehea_mcl_entry; | |
1921 | u64 hret; | |
1922 | ||
1e1675cc | 1923 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
7a291083 | 1924 | if (!ehea_mcl_entry) { |
8c4877a4 | 1925 | pr_err("no mem for mcl_entry\n"); |
7a291083 JBT |
1926 | return; |
1927 | } | |
1928 | ||
1929 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
1930 | ||
1931 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
1932 | ||
1933 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
1934 | H_REG_BCMC); | |
1935 | if (!hret) | |
1936 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
1937 | else { | |
8c4877a4 | 1938 | pr_err("failed registering mcast MAC\n"); |
7a291083 JBT |
1939 | kfree(ehea_mcl_entry); |
1940 | } | |
1941 | } | |
1942 | ||
1943 | static void ehea_set_multicast_list(struct net_device *dev) | |
1944 | { | |
1945 | struct ehea_port *port = netdev_priv(dev); | |
22bedad3 | 1946 | struct netdev_hw_addr *ha; |
48e2f183 | 1947 | int ret; |
7a291083 | 1948 | |
47d59d01 | 1949 | ehea_promiscuous(dev, !!(dev->flags & IFF_PROMISC)); |
7a291083 JBT |
1950 | |
1951 | if (dev->flags & IFF_ALLMULTI) { | |
1952 | ehea_allmulti(dev, 1); | |
21eee2dd | 1953 | goto out; |
7a291083 JBT |
1954 | } |
1955 | ehea_allmulti(dev, 0); | |
1956 | ||
4cd24eaf | 1957 | if (!netdev_mc_empty(dev)) { |
7a291083 JBT |
1958 | ret = ehea_drop_multicast_list(dev); |
1959 | if (ret) { | |
1960 | /* Dropping the current multicast list failed. | |
1961 | * Enabling ALL_MULTI is the best we can do. | |
1962 | */ | |
1963 | ehea_allmulti(dev, 1); | |
1964 | } | |
1965 | ||
4cd24eaf | 1966 | if (netdev_mc_count(dev) > port->adapter->max_mc_mac) { |
8c4877a4 JP |
1967 | pr_info("Mcast registration limit reached (0x%llx). Use ALLMULTI!\n", |
1968 | port->adapter->max_mc_mac); | |
7a291083 JBT |
1969 | goto out; |
1970 | } | |
1971 | ||
22bedad3 JP |
1972 | netdev_for_each_mc_addr(ha, dev) |
1973 | ehea_add_multicast_entry(port, ha->addr); | |
508d2b5d | 1974 | |
7a291083 JBT |
1975 | } |
1976 | out: | |
21eee2dd | 1977 | ehea_update_bcmc_registrations(); |
7a291083 JBT |
1978 | } |
1979 | ||
1980 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
1981 | { | |
1982 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
1983 | return -EINVAL; | |
1984 | dev->mtu = new_mtu; | |
1985 | return 0; | |
1986 | } | |
1987 | ||
d695c335 | 1988 | static void xmit_common(struct sk_buff *skb, struct ehea_swqe *swqe) |
7a291083 | 1989 | { |
d695c335 | 1990 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT | EHEA_SWQE_CRC; |
d1d25aab | 1991 | |
d695c335 AB |
1992 | if (skb->protocol != htons(ETH_P_IP)) |
1993 | return; | |
7a291083 | 1994 | |
d695c335 AB |
1995 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
1996 | swqe->tx_control |= EHEA_SWQE_IP_CHECKSUM; | |
7a291083 | 1997 | |
d695c335 AB |
1998 | swqe->ip_start = skb_network_offset(skb); |
1999 | swqe->ip_end = swqe->ip_start + ip_hdrlen(skb) - 1; | |
7a291083 | 2000 | |
d695c335 AB |
2001 | switch (ip_hdr(skb)->protocol) { |
2002 | case IPPROTO_UDP: | |
2003 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2004 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
7a291083 | 2005 | |
d695c335 AB |
2006 | swqe->tcp_offset = swqe->ip_end + 1 + |
2007 | offsetof(struct udphdr, check); | |
d695c335 AB |
2008 | break; |
2009 | ||
2010 | case IPPROTO_TCP: | |
2011 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2012 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
2013 | ||
2014 | swqe->tcp_offset = swqe->ip_end + 1 + | |
2015 | offsetof(struct tcphdr, check); | |
d695c335 | 2016 | break; |
7a291083 | 2017 | } |
d695c335 AB |
2018 | } |
2019 | ||
2020 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
2021 | struct ehea_swqe *swqe, u32 lkey) | |
2022 | { | |
2023 | swqe->tx_control |= EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2024 | ||
2025 | xmit_common(skb, swqe); | |
7a291083 JBT |
2026 | |
2027 | write_swqe2_data(skb, dev, swqe, lkey); | |
2028 | } | |
2029 | ||
2030 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
2031 | struct ehea_swqe *swqe) | |
2032 | { | |
7a291083 | 2033 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; |
7a291083 | 2034 | |
d695c335 | 2035 | xmit_common(skb, swqe); |
d1d25aab | 2036 | |
30e2e90b | 2037 | if (!skb->data_len) |
d626f62b | 2038 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
30e2e90b AB |
2039 | else |
2040 | skb_copy_bits(skb, 0, imm_data, skb->len); | |
d695c335 | 2041 | |
7a291083 JBT |
2042 | swqe->immediate_data_length = skb->len; |
2043 | dev_kfree_skb(skb); | |
2044 | } | |
2045 | ||
2046 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2047 | { | |
2048 | struct ehea_port *port = netdev_priv(dev); | |
2049 | struct ehea_swqe *swqe; | |
7a291083 JBT |
2050 | u32 lkey; |
2051 | int swqe_index; | |
18604c54 | 2052 | struct ehea_port_res *pr; |
b9564468 | 2053 | struct netdev_queue *txq; |
18604c54 | 2054 | |
b9564468 AB |
2055 | pr = &port->port_res[skb_get_queue_mapping(skb)]; |
2056 | txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); | |
18604c54 | 2057 | |
7a291083 JBT |
2058 | swqe = ehea_get_swqe(pr->qp, &swqe_index); |
2059 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
2060 | atomic_dec(&pr->swqe_avail); | |
2061 | ||
e5ccd961 ED |
2062 | if (vlan_tx_tag_present(skb)) { |
2063 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; | |
2064 | swqe->vlan_tag = vlan_tx_tag_get(skb); | |
2065 | } | |
2066 | ||
ce45b873 BL |
2067 | pr->tx_packets++; |
2068 | pr->tx_bytes += skb->len; | |
2069 | ||
7a291083 JBT |
2070 | if (skb->len <= SWQE3_MAX_IMM) { |
2071 | u32 sig_iv = port->sig_comp_iv; | |
2072 | u32 swqe_num = pr->swqe_id_counter; | |
2073 | ehea_xmit3(skb, dev, swqe); | |
2074 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
2075 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
2076 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
2077 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
2078 | sig_iv); | |
2079 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
2080 | pr->swqe_ll_count = 0; | |
2081 | } else | |
2082 | pr->swqe_ll_count += 1; | |
2083 | } else { | |
2084 | swqe->wr_id = | |
2085 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
2086 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 2087 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
2088 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
2089 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
2090 | ||
2091 | pr->sq_skba.index++; | |
2092 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
2093 | ||
2094 | lkey = pr->send_mr.lkey; | |
2095 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 2096 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
2097 | } |
2098 | pr->swqe_id_counter += 1; | |
2099 | ||
8c4877a4 JP |
2100 | netif_info(port, tx_queued, dev, |
2101 | "post swqe on QP %d\n", pr->qp->init_attr.qp_nr); | |
2102 | if (netif_msg_tx_queued(port)) | |
bff0a55f | 2103 | ehea_dump(swqe, 512, "swqe"); |
7a291083 | 2104 | |
2c69448b | 2105 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
b9564468 | 2106 | netif_tx_stop_queue(txq); |
2c69448b JBT |
2107 | swqe->tx_control |= EHEA_SWQE_PURGE; |
2108 | } | |
44c82152 | 2109 | |
7a291083 | 2110 | ehea_post_swqe(pr->qp, swqe); |
7a291083 JBT |
2111 | |
2112 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
b9564468 AB |
2113 | pr->p_stats.queue_stopped++; |
2114 | netif_tx_stop_queue(txq); | |
7a291083 | 2115 | } |
2c69448b | 2116 | |
7a291083 JBT |
2117 | return NETDEV_TX_OK; |
2118 | } | |
2119 | ||
8e586137 | 2120 | static int ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
7a291083 JBT |
2121 | { |
2122 | struct ehea_port *port = netdev_priv(dev); | |
2123 | struct ehea_adapter *adapter = port->adapter; | |
2124 | struct hcp_ehea_port_cb1 *cb1; | |
2125 | int index; | |
2126 | u64 hret; | |
8e586137 | 2127 | int err = 0; |
7a291083 | 2128 | |
3faf2693 | 2129 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2130 | if (!cb1) { |
8c4877a4 | 2131 | pr_err("no mem for cb1\n"); |
8e586137 | 2132 | err = -ENOMEM; |
7a291083 JBT |
2133 | goto out; |
2134 | } | |
2135 | ||
2136 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2137 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2138 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2139 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2140 | err = -EINVAL; |
7a291083 JBT |
2141 | goto out; |
2142 | } | |
2143 | ||
2144 | index = (vid / 64); | |
dec590c1 | 2145 | cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2146 | |
2147 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2148 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2149 | if (hret != H_SUCCESS) { |
8c4877a4 | 2150 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2151 | err = -EINVAL; |
2152 | } | |
7a291083 | 2153 | out: |
3faf2693 | 2154 | free_page((unsigned long)cb1); |
8e586137 | 2155 | return err; |
7a291083 JBT |
2156 | } |
2157 | ||
8e586137 | 2158 | static int ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) |
7a291083 JBT |
2159 | { |
2160 | struct ehea_port *port = netdev_priv(dev); | |
2161 | struct ehea_adapter *adapter = port->adapter; | |
2162 | struct hcp_ehea_port_cb1 *cb1; | |
2163 | int index; | |
2164 | u64 hret; | |
8e586137 | 2165 | int err = 0; |
7a291083 | 2166 | |
3faf2693 | 2167 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2168 | if (!cb1) { |
8c4877a4 | 2169 | pr_err("no mem for cb1\n"); |
8e586137 | 2170 | err = -ENOMEM; |
7a291083 JBT |
2171 | goto out; |
2172 | } | |
2173 | ||
2174 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2175 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2176 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2177 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2178 | err = -EINVAL; |
7a291083 JBT |
2179 | goto out; |
2180 | } | |
2181 | ||
2182 | index = (vid / 64); | |
dec590c1 | 2183 | cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2184 | |
2185 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2186 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2187 | if (hret != H_SUCCESS) { |
8c4877a4 | 2188 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2189 | err = -EINVAL; |
2190 | } | |
7a291083 | 2191 | out: |
3faf2693 | 2192 | free_page((unsigned long)cb1); |
8e586137 | 2193 | return err; |
7a291083 JBT |
2194 | } |
2195 | ||
1886e5d2 | 2196 | static int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) |
7a291083 JBT |
2197 | { |
2198 | int ret = -EIO; | |
2199 | u64 hret; | |
2200 | u16 dummy16 = 0; | |
2201 | u64 dummy64 = 0; | |
508d2b5d | 2202 | struct hcp_modify_qp_cb0 *cb0; |
7a291083 | 2203 | |
3faf2693 | 2204 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2205 | if (!cb0) { |
2206 | ret = -ENOMEM; | |
2207 | goto out; | |
2208 | } | |
2209 | ||
2210 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2211 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2212 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2213 | pr_err("query_ehea_qp failed (1)\n"); |
7a291083 JBT |
2214 | goto out; |
2215 | } | |
2216 | ||
2217 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2218 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2219 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2220 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2221 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2222 | pr_err("modify_ehea_qp failed (1)\n"); |
7a291083 JBT |
2223 | goto out; |
2224 | } | |
2225 | ||
2226 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2227 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2228 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2229 | pr_err("query_ehea_qp failed (2)\n"); |
7a291083 JBT |
2230 | goto out; |
2231 | } | |
2232 | ||
2233 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2234 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2235 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2236 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2237 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2238 | pr_err("modify_ehea_qp failed (2)\n"); |
7a291083 JBT |
2239 | goto out; |
2240 | } | |
2241 | ||
2242 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2243 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2244 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2245 | pr_err("query_ehea_qp failed (3)\n"); |
7a291083 JBT |
2246 | goto out; |
2247 | } | |
2248 | ||
2249 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2250 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2251 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2252 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2253 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2254 | pr_err("modify_ehea_qp failed (3)\n"); |
7a291083 JBT |
2255 | goto out; |
2256 | } | |
2257 | ||
2258 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2259 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2260 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2261 | pr_err("query_ehea_qp failed (4)\n"); |
7a291083 JBT |
2262 | goto out; |
2263 | } | |
2264 | ||
2265 | ret = 0; | |
2266 | out: | |
3faf2693 | 2267 | free_page((unsigned long)cb0); |
7a291083 JBT |
2268 | return ret; |
2269 | } | |
2270 | ||
723f28e4 | 2271 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps) |
7a291083 JBT |
2272 | { |
2273 | int ret, i; | |
2274 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2275 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2276 | ||
2277 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2278 | EHEA_MAX_ENTRIES_EQ, 1); | |
2279 | if (!port->qp_eq) { | |
2280 | ret = -EINVAL; | |
8c4877a4 | 2281 | pr_err("ehea_create_eq failed (qp_eq)\n"); |
7a291083 JBT |
2282 | goto out_kill_eq; |
2283 | } | |
2284 | ||
2285 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2286 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2287 | pr_cfg.max_entries_sq = sq_entries; |
2288 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2289 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2290 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2291 | ||
2292 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2293 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2294 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2295 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2296 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2297 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2298 | ||
2299 | for (i = 0; i < def_qps; i++) { | |
2300 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2301 | if (ret) | |
2302 | goto out_clean_pr; | |
2303 | } | |
723f28e4 | 2304 | for (i = def_qps; i < def_qps; i++) { |
7a291083 JBT |
2305 | ret = ehea_init_port_res(port, &port->port_res[i], |
2306 | &pr_cfg_small_rx, i); | |
2307 | if (ret) | |
2308 | goto out_clean_pr; | |
2309 | } | |
2310 | ||
2311 | return 0; | |
2312 | ||
2313 | out_clean_pr: | |
2314 | while (--i >= 0) | |
2315 | ehea_clean_portres(port, &port->port_res[i]); | |
2316 | ||
2317 | out_kill_eq: | |
2318 | ehea_destroy_eq(port->qp_eq); | |
2319 | return ret; | |
2320 | } | |
2321 | ||
2322 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2323 | { | |
2324 | int ret = 0; | |
2325 | int i; | |
2326 | ||
723f28e4 | 2327 | for (i = 0; i < port->num_def_qps; i++) |
7a291083 JBT |
2328 | ret |= ehea_clean_portres(port, &port->port_res[i]); |
2329 | ||
2330 | ret |= ehea_destroy_eq(port->qp_eq); | |
2331 | ||
2332 | return ret; | |
2333 | } | |
2334 | ||
35cf2e2e | 2335 | static void ehea_remove_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2336 | { |
35cf2e2e TK |
2337 | if (adapter->active_ports) |
2338 | return; | |
1211bb6d TK |
2339 | |
2340 | ehea_rem_mr(&adapter->mr); | |
2341 | } | |
2342 | ||
35cf2e2e | 2343 | static int ehea_add_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2344 | { |
35cf2e2e TK |
2345 | if (adapter->active_ports) |
2346 | return 0; | |
1211bb6d TK |
2347 | |
2348 | return ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2349 | } | |
2350 | ||
7a291083 JBT |
2351 | static int ehea_up(struct net_device *dev) |
2352 | { | |
2353 | int ret, i; | |
2354 | struct ehea_port *port = netdev_priv(dev); | |
7a291083 JBT |
2355 | |
2356 | if (port->state == EHEA_PORT_UP) | |
2357 | return 0; | |
2358 | ||
723f28e4 | 2359 | ret = ehea_port_res_setup(port, port->num_def_qps); |
7a291083 | 2360 | if (ret) { |
8c4877a4 | 2361 | netdev_err(dev, "port_res_failed\n"); |
7a291083 JBT |
2362 | goto out; |
2363 | } | |
2364 | ||
2365 | /* Set default QP for this port */ | |
2366 | ret = ehea_configure_port(port); | |
2367 | if (ret) { | |
8c4877a4 | 2368 | netdev_err(dev, "ehea_configure_port failed. ret:%d\n", ret); |
7a291083 JBT |
2369 | goto out_clean_pr; |
2370 | } | |
2371 | ||
7a291083 JBT |
2372 | ret = ehea_reg_interrupts(dev); |
2373 | if (ret) { | |
8c4877a4 | 2374 | netdev_err(dev, "reg_interrupts failed. ret:%d\n", ret); |
f9e29228 | 2375 | goto out_clean_pr; |
7a291083 JBT |
2376 | } |
2377 | ||
723f28e4 | 2378 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2379 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); |
2380 | if (ret) { | |
8c4877a4 | 2381 | netdev_err(dev, "activate_qp failed\n"); |
7a291083 JBT |
2382 | goto out_free_irqs; |
2383 | } | |
2384 | } | |
2385 | ||
508d2b5d | 2386 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2387 | ret = ehea_fill_port_res(&port->port_res[i]); |
2388 | if (ret) { | |
8c4877a4 | 2389 | netdev_err(dev, "out_free_irqs\n"); |
7a291083 JBT |
2390 | goto out_free_irqs; |
2391 | } | |
2392 | } | |
2393 | ||
21eee2dd TK |
2394 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); |
2395 | if (ret) { | |
2396 | ret = -EIO; | |
2397 | goto out_free_irqs; | |
2398 | } | |
2399 | ||
7a291083 | 2400 | port->state = EHEA_PORT_UP; |
21eee2dd TK |
2401 | |
2402 | ret = 0; | |
7a291083 JBT |
2403 | goto out; |
2404 | ||
2405 | out_free_irqs: | |
2406 | ehea_free_interrupts(dev); | |
2407 | ||
7a291083 JBT |
2408 | out_clean_pr: |
2409 | ehea_clean_all_portres(port); | |
2410 | out: | |
44c82152 | 2411 | if (ret) |
8c4877a4 | 2412 | netdev_info(dev, "Failed starting. ret=%i\n", ret); |
44c82152 | 2413 | |
21eee2dd | 2414 | ehea_update_bcmc_registrations(); |
21eee2dd | 2415 | ehea_update_firmware_handles(); |
21eee2dd | 2416 | |
7a291083 JBT |
2417 | return ret; |
2418 | } | |
2419 | ||
bea3348e SH |
2420 | static void port_napi_disable(struct ehea_port *port) |
2421 | { | |
2422 | int i; | |
2423 | ||
723f28e4 | 2424 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2425 | napi_disable(&port->port_res[i].napi); |
2426 | } | |
2427 | ||
2428 | static void port_napi_enable(struct ehea_port *port) | |
2429 | { | |
2430 | int i; | |
2431 | ||
723f28e4 | 2432 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2433 | napi_enable(&port->port_res[i].napi); |
2434 | } | |
2435 | ||
7a291083 JBT |
2436 | static int ehea_open(struct net_device *dev) |
2437 | { | |
2438 | int ret; | |
2439 | struct ehea_port *port = netdev_priv(dev); | |
2440 | ||
a5af6ad3 | 2441 | mutex_lock(&port->port_lock); |
7a291083 | 2442 | |
8c4877a4 | 2443 | netif_info(port, ifup, dev, "enabling port\n"); |
7a291083 JBT |
2444 | |
2445 | ret = ehea_up(dev); | |
bea3348e SH |
2446 | if (!ret) { |
2447 | port_napi_enable(port); | |
b9564468 | 2448 | netif_tx_start_all_queues(dev); |
bea3348e | 2449 | } |
7a291083 | 2450 | |
a5af6ad3 | 2451 | mutex_unlock(&port->port_lock); |
67c170a2 AB |
2452 | schedule_delayed_work(&port->stats_work, |
2453 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
2454 | |
2455 | return ret; | |
2456 | } | |
2457 | ||
2458 | static int ehea_down(struct net_device *dev) | |
2459 | { | |
bea3348e | 2460 | int ret; |
7a291083 JBT |
2461 | struct ehea_port *port = netdev_priv(dev); |
2462 | ||
2463 | if (port->state == EHEA_PORT_DOWN) | |
2464 | return 0; | |
2465 | ||
2466 | ehea_drop_multicast_list(dev); | |
5d384574 | 2467 | ehea_allmulti(dev, 0); |
21eee2dd TK |
2468 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); |
2469 | ||
7a291083 JBT |
2470 | ehea_free_interrupts(dev); |
2471 | ||
7a291083 | 2472 | port->state = EHEA_PORT_DOWN; |
44c82152 | 2473 | |
21eee2dd | 2474 | ehea_update_bcmc_registrations(); |
21eee2dd | 2475 | |
44c82152 TK |
2476 | ret = ehea_clean_all_portres(port); |
2477 | if (ret) | |
8c4877a4 | 2478 | netdev_info(dev, "Failed freeing resources. ret=%i\n", ret); |
44c82152 | 2479 | |
21eee2dd | 2480 | ehea_update_firmware_handles(); |
21eee2dd | 2481 | |
7a291083 JBT |
2482 | return ret; |
2483 | } | |
2484 | ||
2485 | static int ehea_stop(struct net_device *dev) | |
2486 | { | |
2487 | int ret; | |
2488 | struct ehea_port *port = netdev_priv(dev); | |
2489 | ||
8c4877a4 | 2490 | netif_info(port, ifdown, dev, "disabling port\n"); |
7a291083 | 2491 | |
2f69ae01 | 2492 | set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
4bb073c0 | 2493 | cancel_work_sync(&port->reset_task); |
2aefcad8 | 2494 | cancel_delayed_work_sync(&port->stats_work); |
a5af6ad3 | 2495 | mutex_lock(&port->port_lock); |
b9564468 | 2496 | netif_tx_stop_all_queues(dev); |
0173b793 | 2497 | port_napi_disable(port); |
7a291083 | 2498 | ret = ehea_down(dev); |
a5af6ad3 | 2499 | mutex_unlock(&port->port_lock); |
2f69ae01 | 2500 | clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
7a291083 JBT |
2501 | return ret; |
2502 | } | |
2503 | ||
22559c5d | 2504 | static void ehea_purge_sq(struct ehea_qp *orig_qp) |
2c69448b JBT |
2505 | { |
2506 | struct ehea_qp qp = *orig_qp; | |
2507 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2508 | struct ehea_swqe *swqe; | |
2509 | int wqe_index; | |
2510 | int i; | |
2511 | ||
2512 | for (i = 0; i < init_attr->act_nr_send_wqes; i++) { | |
2513 | swqe = ehea_get_swqe(&qp, &wqe_index); | |
2514 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2515 | } | |
2516 | } | |
2517 | ||
22559c5d | 2518 | static void ehea_flush_sq(struct ehea_port *port) |
44fb3126 TK |
2519 | { |
2520 | int i; | |
2521 | ||
723f28e4 | 2522 | for (i = 0; i < port->num_def_qps; i++) { |
44fb3126 TK |
2523 | struct ehea_port_res *pr = &port->port_res[i]; |
2524 | int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count; | |
5b27d427 BL |
2525 | int ret; |
2526 | ||
2527 | ret = wait_event_timeout(port->swqe_avail_wq, | |
2528 | atomic_read(&pr->swqe_avail) >= swqe_max, | |
2529 | msecs_to_jiffies(100)); | |
2530 | ||
2531 | if (!ret) { | |
8c4877a4 | 2532 | pr_err("WARNING: sq not flushed completely\n"); |
5b27d427 | 2533 | break; |
44fb3126 TK |
2534 | } |
2535 | } | |
2536 | } | |
2537 | ||
1886e5d2 | 2538 | static int ehea_stop_qps(struct net_device *dev) |
2c69448b JBT |
2539 | { |
2540 | struct ehea_port *port = netdev_priv(dev); | |
2541 | struct ehea_adapter *adapter = port->adapter; | |
508d2b5d | 2542 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2543 | int ret = -EIO; |
2544 | int dret; | |
2545 | int i; | |
2546 | u64 hret; | |
2547 | u64 dummy64 = 0; | |
2548 | u16 dummy16 = 0; | |
2549 | ||
3faf2693 | 2550 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2551 | if (!cb0) { |
2552 | ret = -ENOMEM; | |
2553 | goto out; | |
2554 | } | |
2555 | ||
723f28e4 | 2556 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2557 | struct ehea_port_res *pr = &port->port_res[i]; |
2558 | struct ehea_qp *qp = pr->qp; | |
2559 | ||
2560 | /* Purge send queue */ | |
2561 | ehea_purge_sq(qp); | |
2562 | ||
2563 | /* Disable queue pair */ | |
2564 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2565 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2566 | cb0); | |
2567 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2568 | pr_err("query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2569 | goto out; |
2570 | } | |
2571 | ||
2572 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2573 | cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED; | |
2574 | ||
2575 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2576 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2577 | 1), cb0, &dummy64, | |
2578 | &dummy64, &dummy16, &dummy16); | |
2579 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2580 | pr_err("modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2581 | goto out; |
2582 | } | |
2583 | ||
2584 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2585 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2586 | cb0); | |
2587 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2588 | pr_err("query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2589 | goto out; |
2590 | } | |
2591 | ||
2592 | /* deregister shared memory regions */ | |
2593 | dret = ehea_rem_smrs(pr); | |
2594 | if (dret) { | |
8c4877a4 | 2595 | pr_err("unreg shared memory region failed\n"); |
2c69448b JBT |
2596 | goto out; |
2597 | } | |
2598 | } | |
2599 | ||
2600 | ret = 0; | |
2601 | out: | |
3faf2693 | 2602 | free_page((unsigned long)cb0); |
2c69448b JBT |
2603 | |
2604 | return ret; | |
2605 | } | |
2606 | ||
1886e5d2 | 2607 | static void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr) |
2c69448b JBT |
2608 | { |
2609 | struct ehea_qp qp = *orig_qp; | |
2610 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2611 | struct ehea_rwqe *rwqe; | |
2612 | struct sk_buff **skba_rq2 = pr->rq2_skba.arr; | |
2613 | struct sk_buff **skba_rq3 = pr->rq3_skba.arr; | |
2614 | struct sk_buff *skb; | |
2615 | u32 lkey = pr->recv_mr.lkey; | |
2616 | ||
2617 | ||
2618 | int i; | |
2619 | int index; | |
2620 | ||
2621 | for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) { | |
2622 | rwqe = ehea_get_next_rwqe(&qp, 2); | |
2623 | rwqe->sg_list[0].l_key = lkey; | |
2624 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2625 | skb = skba_rq2[index]; | |
2626 | if (skb) | |
2627 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2628 | } | |
2629 | ||
2630 | for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) { | |
2631 | rwqe = ehea_get_next_rwqe(&qp, 3); | |
2632 | rwqe->sg_list[0].l_key = lkey; | |
2633 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2634 | skb = skba_rq3[index]; | |
2635 | if (skb) | |
2636 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2637 | } | |
2638 | } | |
2639 | ||
1886e5d2 | 2640 | static int ehea_restart_qps(struct net_device *dev) |
2c69448b JBT |
2641 | { |
2642 | struct ehea_port *port = netdev_priv(dev); | |
2643 | struct ehea_adapter *adapter = port->adapter; | |
2644 | int ret = 0; | |
2645 | int i; | |
2646 | ||
508d2b5d | 2647 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2648 | u64 hret; |
2649 | u64 dummy64 = 0; | |
2650 | u16 dummy16 = 0; | |
2651 | ||
3faf2693 | 2652 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2653 | if (!cb0) { |
2654 | ret = -ENOMEM; | |
2655 | goto out; | |
2656 | } | |
2657 | ||
723f28e4 | 2658 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2659 | struct ehea_port_res *pr = &port->port_res[i]; |
2660 | struct ehea_qp *qp = pr->qp; | |
2661 | ||
2662 | ret = ehea_gen_smrs(pr); | |
2663 | if (ret) { | |
8c4877a4 | 2664 | netdev_err(dev, "creation of shared memory regions failed\n"); |
2c69448b JBT |
2665 | goto out; |
2666 | } | |
2667 | ||
2668 | ehea_update_rqs(qp, pr); | |
2669 | ||
2670 | /* Enable queue pair */ | |
2671 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2672 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2673 | cb0); | |
2674 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2675 | netdev_err(dev, "query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2676 | goto out; |
2677 | } | |
2678 | ||
2679 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2680 | cb0->qp_ctl_reg |= H_QP_CR_ENABLED; | |
2681 | ||
2682 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2683 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2684 | 1), cb0, &dummy64, | |
2685 | &dummy64, &dummy16, &dummy16); | |
2686 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2687 | netdev_err(dev, "modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2688 | goto out; |
2689 | } | |
2690 | ||
2691 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2692 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2693 | cb0); | |
2694 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2695 | netdev_err(dev, "query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2696 | goto out; |
2697 | } | |
2698 | ||
2699 | /* refill entire queue */ | |
2700 | ehea_refill_rq1(pr, pr->rq1_skba.index, 0); | |
2701 | ehea_refill_rq2(pr, 0); | |
2702 | ehea_refill_rq3(pr, 0); | |
2703 | } | |
2704 | out: | |
3faf2693 | 2705 | free_page((unsigned long)cb0); |
2c69448b JBT |
2706 | |
2707 | return ret; | |
2708 | } | |
2709 | ||
c4028958 | 2710 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2711 | { |
2712 | int ret; | |
c4028958 DH |
2713 | struct ehea_port *port = |
2714 | container_of(work, struct ehea_port, reset_task); | |
2715 | struct net_device *dev = port->netdev; | |
7a291083 | 2716 | |
099473c1 | 2717 | mutex_lock(&dlpar_mem_lock); |
7a291083 | 2718 | port->resets++; |
a5af6ad3 | 2719 | mutex_lock(&port->port_lock); |
b9564468 | 2720 | netif_tx_disable(dev); |
bea3348e SH |
2721 | |
2722 | port_napi_disable(port); | |
7a291083 | 2723 | |
44c82152 | 2724 | ehea_down(dev); |
7a291083 JBT |
2725 | |
2726 | ret = ehea_up(dev); | |
44c82152 | 2727 | if (ret) |
7a291083 | 2728 | goto out; |
7a291083 | 2729 | |
2c69448b JBT |
2730 | ehea_set_multicast_list(dev); |
2731 | ||
8c4877a4 | 2732 | netif_info(port, timer, dev, "reset successful\n"); |
7a291083 | 2733 | |
bea3348e SH |
2734 | port_napi_enable(port); |
2735 | ||
b9564468 | 2736 | netif_tx_wake_all_queues(dev); |
7a291083 | 2737 | out: |
a5af6ad3 | 2738 | mutex_unlock(&port->port_lock); |
099473c1 | 2739 | mutex_unlock(&dlpar_mem_lock); |
7a291083 JBT |
2740 | } |
2741 | ||
3d6b892b | 2742 | static void ehea_rereg_mrs(void) |
44c82152 TK |
2743 | { |
2744 | int ret, i; | |
2745 | struct ehea_adapter *adapter; | |
2746 | ||
8c4877a4 | 2747 | pr_info("LPAR memory changed - re-initializing driver\n"); |
44c82152 TK |
2748 | |
2749 | list_for_each_entry(adapter, &adapter_list, list) | |
2750 | if (adapter->active_ports) { | |
2751 | /* Shutdown all ports */ | |
2752 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2753 | struct ehea_port *port = adapter->port[i]; | |
a5af6ad3 | 2754 | struct net_device *dev; |
44c82152 | 2755 | |
a5af6ad3 DW |
2756 | if (!port) |
2757 | continue; | |
44c82152 | 2758 | |
a5af6ad3 DW |
2759 | dev = port->netdev; |
2760 | ||
2761 | if (dev->flags & IFF_UP) { | |
2762 | mutex_lock(&port->port_lock); | |
b9564468 | 2763 | netif_tx_disable(dev); |
df39e8ba | 2764 | ehea_flush_sq(port); |
a5af6ad3 DW |
2765 | ret = ehea_stop_qps(dev); |
2766 | if (ret) { | |
2767 | mutex_unlock(&port->port_lock); | |
2768 | goto out; | |
44c82152 | 2769 | } |
a5af6ad3 DW |
2770 | port_napi_disable(port); |
2771 | mutex_unlock(&port->port_lock); | |
44c82152 | 2772 | } |
2928db4c | 2773 | reset_sq_restart_flag(port); |
44c82152 TK |
2774 | } |
2775 | ||
2776 | /* Unregister old memory region */ | |
2777 | ret = ehea_rem_mr(&adapter->mr); | |
2778 | if (ret) { | |
8c4877a4 | 2779 | pr_err("unregister MR failed - driver inoperable!\n"); |
44c82152 TK |
2780 | goto out; |
2781 | } | |
2782 | } | |
2783 | ||
44c82152 TK |
2784 | clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
2785 | ||
2786 | list_for_each_entry(adapter, &adapter_list, list) | |
2787 | if (adapter->active_ports) { | |
2788 | /* Register new memory region */ | |
2789 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2790 | if (ret) { | |
8c4877a4 | 2791 | pr_err("register MR failed - driver inoperable!\n"); |
44c82152 TK |
2792 | goto out; |
2793 | } | |
2794 | ||
2795 | /* Restart all ports */ | |
2796 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2797 | struct ehea_port *port = adapter->port[i]; | |
2798 | ||
2799 | if (port) { | |
2800 | struct net_device *dev = port->netdev; | |
2801 | ||
2802 | if (dev->flags & IFF_UP) { | |
a5af6ad3 | 2803 | mutex_lock(&port->port_lock); |
2c69448b | 2804 | ret = ehea_restart_qps(dev); |
6f4d6dc1 BL |
2805 | if (!ret) { |
2806 | check_sqs(port); | |
2807 | port_napi_enable(port); | |
b9564468 | 2808 | netif_tx_wake_all_queues(dev); |
6f4d6dc1 BL |
2809 | } else { |
2810 | netdev_err(dev, "Unable to restart QPS\n"); | |
2811 | } | |
a5af6ad3 | 2812 | mutex_unlock(&port->port_lock); |
44c82152 TK |
2813 | } |
2814 | } | |
2815 | } | |
2816 | } | |
8c4877a4 | 2817 | pr_info("re-initializing driver complete\n"); |
44c82152 TK |
2818 | out: |
2819 | return; | |
2820 | } | |
2821 | ||
7a291083 JBT |
2822 | static void ehea_tx_watchdog(struct net_device *dev) |
2823 | { | |
2824 | struct ehea_port *port = netdev_priv(dev); | |
2825 | ||
2c69448b JBT |
2826 | if (netif_carrier_ok(dev) && |
2827 | !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) | |
2f69ae01 | 2828 | ehea_schedule_port_reset(port); |
7a291083 JBT |
2829 | } |
2830 | ||
1886e5d2 | 2831 | static int ehea_sense_adapter_attr(struct ehea_adapter *adapter) |
7a291083 JBT |
2832 | { |
2833 | struct hcp_query_ehea *cb; | |
2834 | u64 hret; | |
2835 | int ret; | |
2836 | ||
3faf2693 | 2837 | cb = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2838 | if (!cb) { |
2839 | ret = -ENOMEM; | |
2840 | goto out; | |
2841 | } | |
2842 | ||
2843 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
2844 | ||
2845 | if (hret != H_SUCCESS) { | |
2846 | ret = -EIO; | |
2847 | goto out_herr; | |
2848 | } | |
2849 | ||
7a291083 JBT |
2850 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
2851 | ret = 0; | |
2852 | ||
2853 | out_herr: | |
3faf2693 | 2854 | free_page((unsigned long)cb); |
7a291083 JBT |
2855 | out: |
2856 | return ret; | |
2857 | } | |
2858 | ||
1886e5d2 | 2859 | static int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 2860 | { |
7a291083 | 2861 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
2862 | u64 hret; |
2863 | int ret = 0; | |
7a291083 | 2864 | |
1acf2318 | 2865 | *jumbo = 0; |
7a291083 | 2866 | |
1acf2318 | 2867 | /* (Try to) enable *jumbo frames */ |
3faf2693 | 2868 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2869 | if (!cb4) { |
8c4877a4 | 2870 | pr_err("no mem for cb4\n"); |
1acf2318 JBT |
2871 | ret = -ENOMEM; |
2872 | goto out; | |
7a291083 | 2873 | } else { |
1acf2318 | 2874 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
2875 | port->logical_port_id, |
2876 | H_PORT_CB4, | |
2877 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
2878 | if (hret == H_SUCCESS) { |
2879 | if (cb4->jumbo_frame) | |
1acf2318 | 2880 | *jumbo = 1; |
9c750b7d TK |
2881 | else { |
2882 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
2883 | hret = ehea_h_modify_ehea_port(port->adapter-> |
2884 | handle, | |
9c750b7d | 2885 | port-> |
1acf2318 | 2886 | logical_port_id, |
9c750b7d TK |
2887 | H_PORT_CB4, |
2888 | H_PORT_CB4_JUMBO, | |
2889 | cb4); | |
2890 | if (hret == H_SUCCESS) | |
1acf2318 | 2891 | *jumbo = 1; |
9c750b7d | 2892 | } |
1acf2318 JBT |
2893 | } else |
2894 | ret = -EINVAL; | |
2895 | ||
3faf2693 | 2896 | free_page((unsigned long)cb4); |
7a291083 | 2897 | } |
1acf2318 JBT |
2898 | out: |
2899 | return ret; | |
2900 | } | |
2901 | ||
2902 | static ssize_t ehea_show_port_id(struct device *dev, | |
2903 | struct device_attribute *attr, char *buf) | |
2904 | { | |
2905 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
a8e34fda | 2906 | return sprintf(buf, "%d", port->logical_port_id); |
1acf2318 JBT |
2907 | } |
2908 | ||
2909 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
2910 | NULL); | |
2911 | ||
2912 | static void __devinit logical_port_release(struct device *dev) | |
2913 | { | |
2914 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
61c7a080 | 2915 | of_node_put(port->ofdev.dev.of_node); |
1acf2318 JBT |
2916 | } |
2917 | ||
2918 | static struct device *ehea_register_port(struct ehea_port *port, | |
2919 | struct device_node *dn) | |
2920 | { | |
2921 | int ret; | |
2922 | ||
61c7a080 | 2923 | port->ofdev.dev.of_node = of_node_get(dn); |
6b08f3ae | 2924 | port->ofdev.dev.parent = &port->adapter->ofdev->dev; |
d1dea38d | 2925 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 2926 | |
db1d7bf7 | 2927 | dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++); |
1acf2318 JBT |
2928 | port->ofdev.dev.release = logical_port_release; |
2929 | ||
2930 | ret = of_device_register(&port->ofdev); | |
2931 | if (ret) { | |
8c4877a4 | 2932 | pr_err("failed to register device. ret=%d\n", ret); |
1acf2318 JBT |
2933 | goto out; |
2934 | } | |
2935 | ||
2936 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
d1d25aab | 2937 | if (ret) { |
8c4877a4 | 2938 | pr_err("failed to register attributes, ret=%d\n", ret); |
1acf2318 JBT |
2939 | goto out_unreg_of_dev; |
2940 | } | |
e542aa6b | 2941 | |
1acf2318 JBT |
2942 | return &port->ofdev.dev; |
2943 | ||
2944 | out_unreg_of_dev: | |
2945 | of_device_unregister(&port->ofdev); | |
2946 | out: | |
2947 | return NULL; | |
2948 | } | |
2949 | ||
2950 | static void ehea_unregister_port(struct ehea_port *port) | |
2951 | { | |
2952 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
2953 | of_device_unregister(&port->ofdev); | |
2954 | } | |
2955 | ||
086c1b2c TK |
2956 | static const struct net_device_ops ehea_netdev_ops = { |
2957 | .ndo_open = ehea_open, | |
2958 | .ndo_stop = ehea_stop, | |
2959 | .ndo_start_xmit = ehea_start_xmit, | |
2960 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2961 | .ndo_poll_controller = ehea_netpoll, | |
2962 | #endif | |
239c562c | 2963 | .ndo_get_stats64 = ehea_get_stats64, |
086c1b2c | 2964 | .ndo_set_mac_address = ehea_set_mac_addr, |
240c102d | 2965 | .ndo_validate_addr = eth_validate_addr, |
afc4b13d | 2966 | .ndo_set_rx_mode = ehea_set_multicast_list, |
086c1b2c | 2967 | .ndo_change_mtu = ehea_change_mtu, |
086c1b2c | 2968 | .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid, |
32e8f9a8 AB |
2969 | .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid, |
2970 | .ndo_tx_timeout = ehea_tx_watchdog, | |
086c1b2c TK |
2971 | }; |
2972 | ||
1886e5d2 | 2973 | static struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, |
1acf2318 JBT |
2974 | u32 logical_port_id, |
2975 | struct device_node *dn) | |
2976 | { | |
2977 | int ret; | |
2978 | struct net_device *dev; | |
2979 | struct ehea_port *port; | |
2980 | struct device *port_dev; | |
2981 | int jumbo; | |
2982 | ||
2983 | /* allocate memory for the port structures */ | |
b9564468 | 2984 | dev = alloc_etherdev_mq(sizeof(struct ehea_port), EHEA_MAX_PORT_RES); |
1acf2318 JBT |
2985 | |
2986 | if (!dev) { | |
1acf2318 JBT |
2987 | ret = -ENOMEM; |
2988 | goto out_err; | |
2989 | } | |
2990 | ||
2991 | port = netdev_priv(dev); | |
2992 | ||
a5af6ad3 | 2993 | mutex_init(&port->port_lock); |
1acf2318 JBT |
2994 | port->state = EHEA_PORT_DOWN; |
2995 | port->sig_comp_iv = sq_entries / 10; | |
2996 | ||
2997 | port->adapter = adapter; | |
2998 | port->netdev = dev; | |
2999 | port->logical_port_id = logical_port_id; | |
3000 | ||
3001 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
3002 | ||
3003 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
3004 | if (!port->mc_list) { | |
3005 | ret = -ENOMEM; | |
3006 | goto out_free_ethdev; | |
3007 | } | |
3008 | ||
3009 | INIT_LIST_HEAD(&port->mc_list->list); | |
3010 | ||
3011 | ret = ehea_sense_port_attr(port); | |
3012 | if (ret) | |
3013 | goto out_free_mc_list; | |
3014 | ||
b9564468 | 3015 | netif_set_real_num_rx_queues(dev, port->num_def_qps); |
723f28e4 | 3016 | netif_set_real_num_tx_queues(dev, port->num_def_qps); |
b9564468 | 3017 | |
1acf2318 JBT |
3018 | port_dev = ehea_register_port(port, dn); |
3019 | if (!port_dev) | |
3020 | goto out_free_mc_list; | |
3021 | ||
3022 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
3023 | |
3024 | /* initialize net_device structure */ | |
7a291083 JBT |
3025 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); |
3026 | ||
086c1b2c TK |
3027 | dev->netdev_ops = &ehea_netdev_ops; |
3028 | ehea_set_ethtool_ops(dev); | |
3029 | ||
d695c335 | 3030 | dev->hw_features = NETIF_F_SG | NETIF_F_TSO |
f4786a96 | 3031 | | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX | NETIF_F_LRO; |
7a291083 | 3032 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO |
dc01c447 | 3033 | | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX |
7a291083 | 3034 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER |
3f7947b9 | 3035 | | NETIF_F_RXCSUM; |
076f2032 AB |
3036 | dev->vlan_features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HIGHDMA | |
3037 | NETIF_F_IP_CSUM; | |
7a291083 JBT |
3038 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; |
3039 | ||
c4028958 | 3040 | INIT_WORK(&port->reset_task, ehea_reset_port); |
2aefcad8 | 3041 | INIT_DELAYED_WORK(&port->stats_work, ehea_update_stats); |
7a291083 | 3042 | |
21ccc793 AB |
3043 | init_waitqueue_head(&port->swqe_avail_wq); |
3044 | init_waitqueue_head(&port->restart_wq); | |
3045 | ||
2aefcad8 | 3046 | memset(&port->stats, 0, sizeof(struct net_device_stats)); |
7a291083 JBT |
3047 | ret = register_netdev(dev); |
3048 | if (ret) { | |
8c4877a4 | 3049 | pr_err("register_netdev failed. ret=%d\n", ret); |
21eee2dd | 3050 | goto out_unreg_port; |
7a291083 JBT |
3051 | } |
3052 | ||
1acf2318 | 3053 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 3054 | if (ret) |
8c4877a4 | 3055 | netdev_err(dev, "failed determining jumbo frame status\n"); |
1acf2318 | 3056 | |
8c4877a4 JP |
3057 | netdev_info(dev, "Jumbo frames are %sabled\n", |
3058 | jumbo == 1 ? "en" : "dis"); | |
9c750b7d | 3059 | |
44c82152 TK |
3060 | adapter->active_ports++; |
3061 | ||
1acf2318 | 3062 | return port; |
7a291083 | 3063 | |
1acf2318 JBT |
3064 | out_unreg_port: |
3065 | ehea_unregister_port(port); | |
3066 | ||
3067 | out_free_mc_list: | |
7a291083 | 3068 | kfree(port->mc_list); |
1acf2318 JBT |
3069 | |
3070 | out_free_ethdev: | |
3071 | free_netdev(dev); | |
3072 | ||
3073 | out_err: | |
8c4877a4 JP |
3074 | pr_err("setting up logical port with id=%d failed, ret=%d\n", |
3075 | logical_port_id, ret); | |
1acf2318 JBT |
3076 | return NULL; |
3077 | } | |
3078 | ||
3079 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
3080 | { | |
7fb1c2ac | 3081 | struct ehea_adapter *adapter = port->adapter; |
f5c35cc1 TH |
3082 | |
3083 | cancel_work_sync(&port->reset_task); | |
2aefcad8 | 3084 | cancel_delayed_work_sync(&port->stats_work); |
1acf2318 JBT |
3085 | unregister_netdev(port->netdev); |
3086 | ehea_unregister_port(port); | |
3087 | kfree(port->mc_list); | |
3088 | free_netdev(port->netdev); | |
7fb1c2ac | 3089 | adapter->active_ports--; |
7a291083 JBT |
3090 | } |
3091 | ||
3092 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
3093 | { | |
1acf2318 JBT |
3094 | struct device_node *lhea_dn; |
3095 | struct device_node *eth_dn = NULL; | |
d1d25aab | 3096 | |
9f9a3b8a | 3097 | const u32 *dn_log_port_id; |
1acf2318 JBT |
3098 | int i = 0; |
3099 | ||
61c7a080 | 3100 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3101 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3102 | |
40cd3a45 | 3103 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3104 | NULL); |
1acf2318 | 3105 | if (!dn_log_port_id) { |
8c4877a4 JP |
3106 | pr_err("bad device node: eth_dn name=%s\n", |
3107 | eth_dn->full_name); | |
1acf2318 JBT |
3108 | continue; |
3109 | } | |
7a291083 | 3110 | |
1211bb6d | 3111 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3112 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3113 | of_node_put(eth_dn); |
3114 | return -EIO; | |
3115 | } | |
3116 | ||
1acf2318 JBT |
3117 | adapter->port[i] = ehea_setup_single_port(adapter, |
3118 | *dn_log_port_id, | |
3119 | eth_dn); | |
7a291083 | 3120 | if (adapter->port[i]) |
8c4877a4 JP |
3121 | netdev_info(adapter->port[i]->netdev, |
3122 | "logical port id #%d\n", *dn_log_port_id); | |
1211bb6d TK |
3123 | else |
3124 | ehea_remove_adapter_mr(adapter); | |
3125 | ||
1acf2318 | 3126 | i++; |
ee289b64 | 3127 | } |
1211bb6d | 3128 | return 0; |
1acf2318 JBT |
3129 | } |
3130 | ||
e542aa6b JBT |
3131 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
3132 | u32 logical_port_id) | |
1acf2318 JBT |
3133 | { |
3134 | struct device_node *lhea_dn; | |
3135 | struct device_node *eth_dn = NULL; | |
9f9a3b8a | 3136 | const u32 *dn_log_port_id; |
1acf2318 | 3137 | |
61c7a080 | 3138 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3139 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3140 | |
40cd3a45 | 3141 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3142 | NULL); |
1acf2318 JBT |
3143 | if (dn_log_port_id) |
3144 | if (*dn_log_port_id == logical_port_id) | |
3145 | return eth_dn; | |
ee289b64 | 3146 | } |
1acf2318 JBT |
3147 | |
3148 | return NULL; | |
3149 | } | |
3150 | ||
3151 | static ssize_t ehea_probe_port(struct device *dev, | |
3152 | struct device_attribute *attr, | |
3153 | const char *buf, size_t count) | |
3154 | { | |
c7ae011d | 3155 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3156 | struct ehea_port *port; |
3157 | struct device_node *eth_dn = NULL; | |
3158 | int i; | |
3159 | ||
3160 | u32 logical_port_id; | |
3161 | ||
a8e34fda | 3162 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3163 | |
3164 | port = ehea_get_port(adapter, logical_port_id); | |
3165 | ||
3166 | if (port) { | |
8c4877a4 JP |
3167 | netdev_info(port->netdev, "adding port with logical port id=%d failed: port already configured\n", |
3168 | logical_port_id); | |
1acf2318 | 3169 | return -EINVAL; |
7a291083 | 3170 | } |
e542aa6b | 3171 | |
1acf2318 | 3172 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 3173 | |
1acf2318 | 3174 | if (!eth_dn) { |
8c4877a4 | 3175 | pr_info("no logical port with id %d found\n", logical_port_id); |
1acf2318 JBT |
3176 | return -EINVAL; |
3177 | } | |
e542aa6b | 3178 | |
1211bb6d | 3179 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3180 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3181 | return -EIO; |
3182 | } | |
3183 | ||
1acf2318 | 3184 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 3185 | |
1eef4e04 JBT |
3186 | of_node_put(eth_dn); |
3187 | ||
1acf2318 | 3188 | if (port) { |
508d2b5d | 3189 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3190 | if (!adapter->port[i]) { |
3191 | adapter->port[i] = port; | |
3192 | break; | |
3193 | } | |
7a291083 | 3194 | |
8c4877a4 JP |
3195 | netdev_info(port->netdev, "added: (logical port id=%d)\n", |
3196 | logical_port_id); | |
1211bb6d TK |
3197 | } else { |
3198 | ehea_remove_adapter_mr(adapter); | |
e542aa6b | 3199 | return -EIO; |
1211bb6d | 3200 | } |
7a291083 | 3201 | |
1acf2318 JBT |
3202 | return (ssize_t) count; |
3203 | } | |
3204 | ||
3205 | static ssize_t ehea_remove_port(struct device *dev, | |
3206 | struct device_attribute *attr, | |
3207 | const char *buf, size_t count) | |
3208 | { | |
c7ae011d | 3209 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3210 | struct ehea_port *port; |
3211 | int i; | |
3212 | u32 logical_port_id; | |
3213 | ||
a8e34fda | 3214 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3215 | |
3216 | port = ehea_get_port(adapter, logical_port_id); | |
3217 | ||
3218 | if (port) { | |
8c4877a4 JP |
3219 | netdev_info(port->netdev, "removed: (logical port id=%d)\n", |
3220 | logical_port_id); | |
1acf2318 JBT |
3221 | |
3222 | ehea_shutdown_single_port(port); | |
3223 | ||
508d2b5d | 3224 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3225 | if (adapter->port[i] == port) { |
3226 | adapter->port[i] = NULL; | |
3227 | break; | |
3228 | } | |
3229 | } else { | |
8c4877a4 JP |
3230 | pr_err("removing port with logical port id=%d failed. port not configured.\n", |
3231 | logical_port_id); | |
1acf2318 JBT |
3232 | return -EINVAL; |
3233 | } | |
3234 | ||
1211bb6d TK |
3235 | ehea_remove_adapter_mr(adapter); |
3236 | ||
1acf2318 JBT |
3237 | return (ssize_t) count; |
3238 | } | |
3239 | ||
3240 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
3241 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
3242 | ||
1886e5d2 | 3243 | static int ehea_create_device_sysfs(struct platform_device *dev) |
1acf2318 | 3244 | { |
6b08f3ae | 3245 | int ret = device_create_file(&dev->dev, &dev_attr_probe_port); |
1acf2318 JBT |
3246 | if (ret) |
3247 | goto out; | |
3248 | ||
6b08f3ae | 3249 | ret = device_create_file(&dev->dev, &dev_attr_remove_port); |
1acf2318 | 3250 | out: |
7a291083 JBT |
3251 | return ret; |
3252 | } | |
3253 | ||
1886e5d2 | 3254 | static void ehea_remove_device_sysfs(struct platform_device *dev) |
1acf2318 | 3255 | { |
6b08f3ae JF |
3256 | device_remove_file(&dev->dev, &dev_attr_probe_port); |
3257 | device_remove_file(&dev->dev, &dev_attr_remove_port); | |
1acf2318 JBT |
3258 | } |
3259 | ||
2dc11581 | 3260 | static int __devinit ehea_probe_adapter(struct platform_device *dev, |
1acf2318 | 3261 | const struct of_device_id *id) |
7a291083 JBT |
3262 | { |
3263 | struct ehea_adapter *adapter; | |
9f9a3b8a | 3264 | const u64 *adapter_handle; |
7a291083 | 3265 | int ret; |
c2f1244b | 3266 | int i; |
7a291083 | 3267 | |
61c7a080 | 3268 | if (!dev || !dev->dev.of_node) { |
8c4877a4 | 3269 | pr_err("Invalid ibmebus device probed\n"); |
1eef4e04 JBT |
3270 | return -EINVAL; |
3271 | } | |
3272 | ||
7a291083 JBT |
3273 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
3274 | if (!adapter) { | |
3275 | ret = -ENOMEM; | |
6b08f3ae | 3276 | dev_err(&dev->dev, "no mem for ehea_adapter\n"); |
7a291083 JBT |
3277 | goto out; |
3278 | } | |
3279 | ||
44c82152 TK |
3280 | list_add(&adapter->list, &adapter_list); |
3281 | ||
6b08f3ae | 3282 | adapter->ofdev = dev; |
1acf2318 | 3283 | |
61c7a080 | 3284 | adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle", |
d1d25aab | 3285 | NULL); |
061bf3cd TK |
3286 | if (adapter_handle) |
3287 | adapter->handle = *adapter_handle; | |
3288 | ||
3289 | if (!adapter->handle) { | |
6b08f3ae | 3290 | dev_err(&dev->dev, "failed getting handle for adapter" |
61c7a080 | 3291 | " '%s'\n", dev->dev.of_node->full_name); |
7a291083 JBT |
3292 | ret = -ENODEV; |
3293 | goto out_free_ad; | |
3294 | } | |
3295 | ||
7a291083 JBT |
3296 | adapter->pd = EHEA_PD_ID; |
3297 | ||
c7ae011d | 3298 | dev_set_drvdata(&dev->dev, adapter); |
7a291083 | 3299 | |
7a291083 JBT |
3300 | |
3301 | /* initialize adapter and ports */ | |
3302 | /* get adapter properties */ | |
3303 | ret = ehea_sense_adapter_attr(adapter); | |
3304 | if (ret) { | |
898eb71c | 3305 | dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret); |
1211bb6d | 3306 | goto out_free_ad; |
7a291083 | 3307 | } |
7a291083 JBT |
3308 | |
3309 | adapter->neq = ehea_create_eq(adapter, | |
3310 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
3311 | if (!adapter->neq) { | |
1eef4e04 | 3312 | ret = -EIO; |
898eb71c | 3313 | dev_err(&dev->dev, "NEQ creation failed\n"); |
1211bb6d | 3314 | goto out_free_ad; |
7a291083 JBT |
3315 | } |
3316 | ||
3317 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
3318 | (unsigned long)adapter); | |
3319 | ||
1eef4e04 JBT |
3320 | ret = ehea_create_device_sysfs(dev); |
3321 | if (ret) | |
c2f1244b | 3322 | goto out_kill_eq; |
1acf2318 | 3323 | |
7a291083 JBT |
3324 | ret = ehea_setup_ports(adapter); |
3325 | if (ret) { | |
898eb71c | 3326 | dev_err(&dev->dev, "setup_ports failed\n"); |
1acf2318 | 3327 | goto out_rem_dev_sysfs; |
7a291083 JBT |
3328 | } |
3329 | ||
c2f1244b TLSC |
3330 | ret = ibmebus_request_irq(adapter->neq->attr.ist1, |
3331 | ehea_interrupt_neq, IRQF_DISABLED, | |
3332 | "ehea_neq", adapter); | |
3333 | if (ret) { | |
3334 | dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); | |
3335 | goto out_shutdown_ports; | |
3336 | } | |
3337 | ||
3338 | ||
7a291083 JBT |
3339 | ret = 0; |
3340 | goto out; | |
3341 | ||
c2f1244b TLSC |
3342 | out_shutdown_ports: |
3343 | for (i = 0; i < EHEA_MAX_PORTS; i++) | |
3344 | if (adapter->port[i]) { | |
3345 | ehea_shutdown_single_port(adapter->port[i]); | |
3346 | adapter->port[i] = NULL; | |
3347 | } | |
3348 | ||
1acf2318 JBT |
3349 | out_rem_dev_sysfs: |
3350 | ehea_remove_device_sysfs(dev); | |
3351 | ||
7a291083 JBT |
3352 | out_kill_eq: |
3353 | ehea_destroy_eq(adapter->neq); | |
3354 | ||
7a291083 | 3355 | out_free_ad: |
51621fbd | 3356 | list_del(&adapter->list); |
7a291083 | 3357 | kfree(adapter); |
21eee2dd | 3358 | |
7a291083 | 3359 | out: |
21eee2dd | 3360 | ehea_update_firmware_handles(); |
52e21b1b | 3361 | |
7a291083 JBT |
3362 | return ret; |
3363 | } | |
3364 | ||
2dc11581 | 3365 | static int __devexit ehea_remove(struct platform_device *dev) |
7a291083 | 3366 | { |
c7ae011d | 3367 | struct ehea_adapter *adapter = dev_get_drvdata(&dev->dev); |
7a291083 JBT |
3368 | int i; |
3369 | ||
1acf2318 | 3370 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
7a291083 JBT |
3371 | if (adapter->port[i]) { |
3372 | ehea_shutdown_single_port(adapter->port[i]); | |
3373 | adapter->port[i] = NULL; | |
3374 | } | |
1acf2318 JBT |
3375 | |
3376 | ehea_remove_device_sysfs(dev); | |
3377 | ||
6b08f3ae | 3378 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
d4150a27 | 3379 | tasklet_kill(&adapter->neq_tasklet); |
7a291083 JBT |
3380 | |
3381 | ehea_destroy_eq(adapter->neq); | |
1211bb6d | 3382 | ehea_remove_adapter_mr(adapter); |
44c82152 | 3383 | list_del(&adapter->list); |
7a291083 | 3384 | kfree(adapter); |
44c82152 | 3385 | |
21eee2dd | 3386 | ehea_update_firmware_handles(); |
21eee2dd | 3387 | |
7a291083 JBT |
3388 | return 0; |
3389 | } | |
3390 | ||
1886e5d2 | 3391 | static void ehea_crash_handler(void) |
21eee2dd TK |
3392 | { |
3393 | int i; | |
3394 | ||
3395 | if (ehea_fw_handles.arr) | |
3396 | for (i = 0; i < ehea_fw_handles.num_entries; i++) | |
3397 | ehea_h_free_resource(ehea_fw_handles.arr[i].adh, | |
3398 | ehea_fw_handles.arr[i].fwh, | |
3399 | FORCE_FREE); | |
3400 | ||
3401 | if (ehea_bcmc_regs.arr) | |
3402 | for (i = 0; i < ehea_bcmc_regs.num_entries; i++) | |
3403 | ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh, | |
3404 | ehea_bcmc_regs.arr[i].port_id, | |
3405 | ehea_bcmc_regs.arr[i].reg_type, | |
3406 | ehea_bcmc_regs.arr[i].macaddr, | |
3407 | 0, H_DEREG_BCMC); | |
3408 | } | |
3409 | ||
48cfb14f HH |
3410 | static int ehea_mem_notifier(struct notifier_block *nb, |
3411 | unsigned long action, void *data) | |
3412 | { | |
a7c561f2 | 3413 | int ret = NOTIFY_BAD; |
d4f12daf | 3414 | struct memory_notify *arg = data; |
a7c561f2 | 3415 | |
099473c1 | 3416 | mutex_lock(&dlpar_mem_lock); |
a7c561f2 | 3417 | |
48cfb14f | 3418 | switch (action) { |
d4f12daf | 3419 | case MEM_CANCEL_OFFLINE: |
8c4877a4 | 3420 | pr_info("memory offlining canceled"); |
d4f12daf HH |
3421 | /* Readd canceled memory block */ |
3422 | case MEM_ONLINE: | |
8c4877a4 | 3423 | pr_info("memory is going online"); |
3876732c | 3424 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3425 | if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3426 | goto out_unlock; |
3d6b892b | 3427 | ehea_rereg_mrs(); |
d4f12daf HH |
3428 | break; |
3429 | case MEM_GOING_OFFLINE: | |
8c4877a4 | 3430 | pr_info("memory is going offline"); |
3876732c | 3431 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3432 | if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3433 | goto out_unlock; |
3d6b892b | 3434 | ehea_rereg_mrs(); |
48cfb14f HH |
3435 | break; |
3436 | default: | |
3437 | break; | |
3438 | } | |
52e21b1b JBT |
3439 | |
3440 | ehea_update_firmware_handles(); | |
a7c561f2 | 3441 | ret = NOTIFY_OK; |
52e21b1b | 3442 | |
a7c561f2 TK |
3443 | out_unlock: |
3444 | mutex_unlock(&dlpar_mem_lock); | |
a7c561f2 | 3445 | return ret; |
48cfb14f HH |
3446 | } |
3447 | ||
3448 | static struct notifier_block ehea_mem_nb = { | |
3449 | .notifier_call = ehea_mem_notifier, | |
3450 | }; | |
3451 | ||
2a6f4e49 JBT |
3452 | static int ehea_reboot_notifier(struct notifier_block *nb, |
3453 | unsigned long action, void *unused) | |
3454 | { | |
3455 | if (action == SYS_RESTART) { | |
8c4877a4 | 3456 | pr_info("Reboot: freeing all eHEA resources\n"); |
2a6f4e49 JBT |
3457 | ibmebus_unregister_driver(&ehea_driver); |
3458 | } | |
3459 | return NOTIFY_DONE; | |
3460 | } | |
3461 | ||
3462 | static struct notifier_block ehea_reboot_nb = { | |
508d2b5d | 3463 | .notifier_call = ehea_reboot_notifier, |
2a6f4e49 JBT |
3464 | }; |
3465 | ||
7a291083 JBT |
3466 | static int check_module_parm(void) |
3467 | { | |
3468 | int ret = 0; | |
3469 | ||
3470 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
3471 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
8c4877a4 | 3472 | pr_info("Bad parameter: rq1_entries\n"); |
7a291083 JBT |
3473 | ret = -EINVAL; |
3474 | } | |
3475 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
3476 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
8c4877a4 | 3477 | pr_info("Bad parameter: rq2_entries\n"); |
7a291083 JBT |
3478 | ret = -EINVAL; |
3479 | } | |
3480 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
3481 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
8c4877a4 | 3482 | pr_info("Bad parameter: rq3_entries\n"); |
7a291083 JBT |
3483 | ret = -EINVAL; |
3484 | } | |
3485 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
3486 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
8c4877a4 | 3487 | pr_info("Bad parameter: sq_entries\n"); |
7a291083 JBT |
3488 | ret = -EINVAL; |
3489 | } | |
3490 | ||
3491 | return ret; | |
3492 | } | |
3493 | ||
4c3ca4da JBT |
3494 | static ssize_t ehea_show_capabilities(struct device_driver *drv, |
3495 | char *buf) | |
3496 | { | |
3497 | return sprintf(buf, "%d", EHEA_CAPABILITIES); | |
3498 | } | |
3499 | ||
3500 | static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH, | |
3501 | ehea_show_capabilities, NULL); | |
3502 | ||
1886e5d2 | 3503 | static int __init ehea_module_init(void) |
7a291083 JBT |
3504 | { |
3505 | int ret; | |
3506 | ||
8c4877a4 | 3507 | pr_info("IBM eHEA ethernet device driver (Release %s)\n", DRV_VERSION); |
7a291083 | 3508 | |
21eee2dd TK |
3509 | memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); |
3510 | memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); | |
3511 | ||
9f71a568 | 3512 | mutex_init(&ehea_fw_handles.lock); |
5c2cec14 | 3513 | spin_lock_init(&ehea_bcmc_regs.lock); |
44c82152 | 3514 | |
7a291083 JBT |
3515 | ret = check_module_parm(); |
3516 | if (ret) | |
3517 | goto out; | |
44c82152 TK |
3518 | |
3519 | ret = ehea_create_busmap(); | |
3520 | if (ret) | |
3521 | goto out; | |
3522 | ||
21eee2dd TK |
3523 | ret = register_reboot_notifier(&ehea_reboot_nb); |
3524 | if (ret) | |
8c4877a4 | 3525 | pr_info("failed registering reboot notifier\n"); |
21eee2dd | 3526 | |
48cfb14f HH |
3527 | ret = register_memory_notifier(&ehea_mem_nb); |
3528 | if (ret) | |
8c4877a4 | 3529 | pr_info("failed registering memory remove notifier\n"); |
48cfb14f | 3530 | |
c061b18d | 3531 | ret = crash_shutdown_register(ehea_crash_handler); |
21eee2dd | 3532 | if (ret) |
8c4877a4 | 3533 | pr_info("failed registering crash handler\n"); |
2a6f4e49 | 3534 | |
7a291083 | 3535 | ret = ibmebus_register_driver(&ehea_driver); |
4c3ca4da | 3536 | if (ret) { |
8c4877a4 | 3537 | pr_err("failed registering eHEA device driver on ebus\n"); |
21eee2dd | 3538 | goto out2; |
4c3ca4da JBT |
3539 | } |
3540 | ||
3541 | ret = driver_create_file(&ehea_driver.driver, | |
3542 | &driver_attr_capabilities); | |
3543 | if (ret) { | |
8c4877a4 JP |
3544 | pr_err("failed to register capabilities attribute, ret=%d\n", |
3545 | ret); | |
21eee2dd | 3546 | goto out3; |
4c3ca4da | 3547 | } |
7a291083 | 3548 | |
21eee2dd TK |
3549 | return ret; |
3550 | ||
3551 | out3: | |
3552 | ibmebus_unregister_driver(&ehea_driver); | |
3553 | out2: | |
48cfb14f | 3554 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd | 3555 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3556 | crash_shutdown_unregister(ehea_crash_handler); |
7a291083 JBT |
3557 | out: |
3558 | return ret; | |
3559 | } | |
3560 | ||
3561 | static void __exit ehea_module_exit(void) | |
3562 | { | |
21eee2dd TK |
3563 | int ret; |
3564 | ||
4c3ca4da | 3565 | driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities); |
7a291083 | 3566 | ibmebus_unregister_driver(&ehea_driver); |
2a6f4e49 | 3567 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3568 | ret = crash_shutdown_unregister(ehea_crash_handler); |
21eee2dd | 3569 | if (ret) |
8c4877a4 | 3570 | pr_info("failed unregistering crash handler\n"); |
48cfb14f | 3571 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3572 | kfree(ehea_fw_handles.arr); |
3573 | kfree(ehea_bcmc_regs.arr); | |
44c82152 | 3574 | ehea_destroy_busmap(); |
7a291083 JBT |
3575 | } |
3576 | ||
3577 | module_init(ehea_module_init); | |
3578 | module_exit(ehea_module_exit); |