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Commit | Line | Data |
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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 | ||
09b38aa1 | 31 | #include <linux/device.h> |
7a291083 JBT |
32 | #include <linux/in.h> |
33 | #include <linux/ip.h> | |
34 | #include <linux/tcp.h> | |
35 | #include <linux/udp.h> | |
36 | #include <linux/if.h> | |
37 | #include <linux/list.h> | |
5a0e3ad6 | 38 | #include <linux/slab.h> |
7a291083 | 39 | #include <linux/if_ether.h> |
2a6f4e49 JBT |
40 | #include <linux/notifier.h> |
41 | #include <linux/reboot.h> | |
48cfb14f | 42 | #include <linux/memory.h> |
21eee2dd | 43 | #include <asm/kexec.h> |
06f89edf | 44 | #include <linux/mutex.h> |
268bb0ce | 45 | #include <linux/prefetch.h> |
2a6f4e49 | 46 | |
7a291083 JBT |
47 | #include <net/ip.h> |
48 | ||
49 | #include "ehea.h" | |
50 | #include "ehea_qmr.h" | |
51 | #include "ehea_phyp.h" | |
52 | ||
53 | ||
54 | MODULE_LICENSE("GPL"); | |
55 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
56 | MODULE_DESCRIPTION("IBM eServer HEA Driver"); | |
57 | MODULE_VERSION(DRV_VERSION); | |
58 | ||
59 | ||
60 | static int msg_level = -1; | |
61 | static int rq1_entries = EHEA_DEF_ENTRIES_RQ1; | |
62 | static int rq2_entries = EHEA_DEF_ENTRIES_RQ2; | |
63 | static int rq3_entries = EHEA_DEF_ENTRIES_RQ3; | |
64 | static int sq_entries = EHEA_DEF_ENTRIES_SQ; | |
b9564468 | 65 | static int use_mcs = 1; |
508d2b5d | 66 | static int prop_carrier_state; |
7a291083 JBT |
67 | |
68 | module_param(msg_level, int, 0); | |
69 | module_param(rq1_entries, int, 0); | |
70 | module_param(rq2_entries, int, 0); | |
71 | module_param(rq3_entries, int, 0); | |
72 | module_param(sq_entries, int, 0); | |
8759cf76 | 73 | module_param(prop_carrier_state, int, 0); |
18604c54 | 74 | module_param(use_mcs, int, 0); |
7a291083 JBT |
75 | |
76 | MODULE_PARM_DESC(msg_level, "msg_level"); | |
8759cf76 JBT |
77 | MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical " |
78 | "port to stack. 1:yes, 0:no. Default = 0 "); | |
7a291083 | 79 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " |
31d17536 | 80 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
81 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); |
82 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
31d17536 | 83 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
84 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); |
85 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
31d17536 | 86 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
87 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); |
88 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
31d17536 | 89 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 | 90 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); |
b9564468 AB |
91 | MODULE_PARM_DESC(use_mcs, " Multiple receive queues, 1: enable, 0: disable, " |
92 | "Default = 1"); | |
7a291083 | 93 | |
508d2b5d | 94 | static int port_name_cnt; |
44c82152 | 95 | static LIST_HEAD(adapter_list); |
48e4cc77 | 96 | static unsigned long ehea_driver_flags; |
06f89edf | 97 | static DEFINE_MUTEX(dlpar_mem_lock); |
1886e5d2 TLSC |
98 | static struct ehea_fw_handle_array ehea_fw_handles; |
99 | static struct ehea_bcmc_reg_array ehea_bcmc_regs; | |
21eee2dd | 100 | |
d1dea38d | 101 | |
c45640e4 | 102 | static int ehea_probe_adapter(struct platform_device *dev); |
d1dea38d | 103 | |
0297be07 | 104 | static int ehea_remove(struct platform_device *dev); |
d1dea38d | 105 | |
7a3a6212 OH |
106 | static struct of_device_id ehea_module_device_table[] = { |
107 | { | |
108 | .name = "lhea", | |
109 | .compatible = "IBM,lhea", | |
110 | }, | |
111 | { | |
112 | .type = "network", | |
113 | .compatible = "IBM,lhea-ethernet", | |
114 | }, | |
115 | {}, | |
116 | }; | |
117 | MODULE_DEVICE_TABLE(of, ehea_module_device_table); | |
118 | ||
d1dea38d TK |
119 | static struct of_device_id ehea_device_table[] = { |
120 | { | |
121 | .name = "lhea", | |
122 | .compatible = "IBM,lhea", | |
123 | }, | |
124 | {}, | |
125 | }; | |
126 | ||
c45640e4 | 127 | static struct platform_driver ehea_driver = { |
4018294b GL |
128 | .driver = { |
129 | .name = "ehea", | |
130 | .owner = THIS_MODULE, | |
131 | .of_match_table = ehea_device_table, | |
132 | }, | |
d1dea38d TK |
133 | .probe = ehea_probe_adapter, |
134 | .remove = ehea_remove, | |
135 | }; | |
136 | ||
508d2b5d DM |
137 | void ehea_dump(void *adr, int len, char *msg) |
138 | { | |
7a291083 JBT |
139 | int x; |
140 | unsigned char *deb = adr; | |
141 | for (x = 0; x < len; x += 16) { | |
8c4877a4 JP |
142 | pr_info("%s adr=%p ofs=%04x %016llx %016llx\n", |
143 | msg, deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8])); | |
7a291083 JBT |
144 | deb += 16; |
145 | } | |
146 | } | |
147 | ||
1886e5d2 | 148 | static void ehea_schedule_port_reset(struct ehea_port *port) |
2f69ae01 JBT |
149 | { |
150 | if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) | |
151 | schedule_work(&port->reset_task); | |
152 | } | |
153 | ||
21eee2dd TK |
154 | static void ehea_update_firmware_handles(void) |
155 | { | |
156 | struct ehea_fw_handle_entry *arr = NULL; | |
157 | struct ehea_adapter *adapter; | |
158 | int num_adapters = 0; | |
159 | int num_ports = 0; | |
160 | int num_portres = 0; | |
161 | int i = 0; | |
162 | int num_fw_handles, k, l; | |
163 | ||
164 | /* Determine number of handles */ | |
52e21b1b JBT |
165 | mutex_lock(&ehea_fw_handles.lock); |
166 | ||
21eee2dd TK |
167 | list_for_each_entry(adapter, &adapter_list, list) { |
168 | num_adapters++; | |
169 | ||
170 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
171 | struct ehea_port *port = adapter->port[k]; | |
172 | ||
173 | if (!port || (port->state != EHEA_PORT_UP)) | |
174 | continue; | |
175 | ||
176 | num_ports++; | |
723f28e4 | 177 | num_portres += port->num_def_qps; |
21eee2dd TK |
178 | } |
179 | } | |
180 | ||
181 | num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES + | |
182 | num_ports * EHEA_NUM_PORT_FW_HANDLES + | |
183 | num_portres * EHEA_NUM_PORTRES_FW_HANDLES; | |
184 | ||
185 | if (num_fw_handles) { | |
baeb2ffa | 186 | arr = kcalloc(num_fw_handles, sizeof(*arr), GFP_KERNEL); |
21eee2dd | 187 | if (!arr) |
52e21b1b | 188 | goto out; /* Keep the existing array */ |
21eee2dd TK |
189 | } else |
190 | goto out_update; | |
191 | ||
192 | list_for_each_entry(adapter, &adapter_list, list) { | |
52e21b1b JBT |
193 | if (num_adapters == 0) |
194 | break; | |
195 | ||
21eee2dd TK |
196 | for (k = 0; k < EHEA_MAX_PORTS; k++) { |
197 | struct ehea_port *port = adapter->port[k]; | |
198 | ||
8e95a202 JP |
199 | if (!port || (port->state != EHEA_PORT_UP) || |
200 | (num_ports == 0)) | |
21eee2dd TK |
201 | continue; |
202 | ||
723f28e4 | 203 | for (l = 0; l < port->num_def_qps; l++) { |
21eee2dd TK |
204 | struct ehea_port_res *pr = &port->port_res[l]; |
205 | ||
206 | arr[i].adh = adapter->handle; | |
207 | arr[i++].fwh = pr->qp->fw_handle; | |
208 | arr[i].adh = adapter->handle; | |
209 | arr[i++].fwh = pr->send_cq->fw_handle; | |
210 | arr[i].adh = adapter->handle; | |
211 | arr[i++].fwh = pr->recv_cq->fw_handle; | |
212 | arr[i].adh = adapter->handle; | |
213 | arr[i++].fwh = pr->eq->fw_handle; | |
214 | arr[i].adh = adapter->handle; | |
215 | arr[i++].fwh = pr->send_mr.handle; | |
216 | arr[i].adh = adapter->handle; | |
217 | arr[i++].fwh = pr->recv_mr.handle; | |
218 | } | |
219 | arr[i].adh = adapter->handle; | |
220 | arr[i++].fwh = port->qp_eq->fw_handle; | |
52e21b1b | 221 | num_ports--; |
21eee2dd TK |
222 | } |
223 | ||
224 | arr[i].adh = adapter->handle; | |
225 | arr[i++].fwh = adapter->neq->fw_handle; | |
226 | ||
227 | if (adapter->mr.handle) { | |
228 | arr[i].adh = adapter->handle; | |
229 | arr[i++].fwh = adapter->mr.handle; | |
230 | } | |
52e21b1b | 231 | num_adapters--; |
21eee2dd TK |
232 | } |
233 | ||
234 | out_update: | |
235 | kfree(ehea_fw_handles.arr); | |
236 | ehea_fw_handles.arr = arr; | |
237 | ehea_fw_handles.num_entries = i; | |
52e21b1b JBT |
238 | out: |
239 | mutex_unlock(&ehea_fw_handles.lock); | |
21eee2dd TK |
240 | } |
241 | ||
242 | static void ehea_update_bcmc_registrations(void) | |
243 | { | |
52e21b1b | 244 | unsigned long flags; |
21eee2dd TK |
245 | struct ehea_bcmc_reg_entry *arr = NULL; |
246 | struct ehea_adapter *adapter; | |
247 | struct ehea_mc_list *mc_entry; | |
248 | int num_registrations = 0; | |
249 | int i = 0; | |
250 | int k; | |
251 | ||
52e21b1b JBT |
252 | spin_lock_irqsave(&ehea_bcmc_regs.lock, flags); |
253 | ||
21eee2dd TK |
254 | /* Determine number of registrations */ |
255 | list_for_each_entry(adapter, &adapter_list, list) | |
256 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
257 | struct ehea_port *port = adapter->port[k]; | |
258 | ||
259 | if (!port || (port->state != EHEA_PORT_UP)) | |
260 | continue; | |
261 | ||
262 | num_registrations += 2; /* Broadcast registrations */ | |
263 | ||
264 | list_for_each_entry(mc_entry, &port->mc_list->list,list) | |
265 | num_registrations += 2; | |
266 | } | |
267 | ||
268 | if (num_registrations) { | |
baeb2ffa | 269 | arr = kcalloc(num_registrations, sizeof(*arr), GFP_ATOMIC); |
21eee2dd | 270 | if (!arr) |
52e21b1b | 271 | goto out; /* Keep the existing array */ |
21eee2dd TK |
272 | } else |
273 | goto out_update; | |
274 | ||
275 | list_for_each_entry(adapter, &adapter_list, list) { | |
276 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
277 | struct ehea_port *port = adapter->port[k]; | |
278 | ||
279 | if (!port || (port->state != EHEA_PORT_UP)) | |
280 | continue; | |
281 | ||
52e21b1b JBT |
282 | if (num_registrations == 0) |
283 | goto out_update; | |
284 | ||
21eee2dd TK |
285 | arr[i].adh = adapter->handle; |
286 | arr[i].port_id = port->logical_port_id; | |
287 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
288 | EHEA_BCMC_UNTAGGED; | |
289 | arr[i++].macaddr = port->mac_addr; | |
290 | ||
291 | arr[i].adh = adapter->handle; | |
292 | arr[i].port_id = port->logical_port_id; | |
293 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
294 | EHEA_BCMC_VLANID_ALL; | |
295 | arr[i++].macaddr = port->mac_addr; | |
52e21b1b | 296 | num_registrations -= 2; |
21eee2dd TK |
297 | |
298 | list_for_each_entry(mc_entry, | |
299 | &port->mc_list->list, list) { | |
52e21b1b JBT |
300 | if (num_registrations == 0) |
301 | goto out_update; | |
302 | ||
21eee2dd TK |
303 | arr[i].adh = adapter->handle; |
304 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 305 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 306 | EHEA_BCMC_UNTAGGED; |
5d384574 TLSC |
307 | if (mc_entry->macaddr == 0) |
308 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd TK |
309 | arr[i++].macaddr = mc_entry->macaddr; |
310 | ||
311 | arr[i].adh = adapter->handle; | |
312 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 313 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 314 | EHEA_BCMC_VLANID_ALL; |
5d384574 TLSC |
315 | if (mc_entry->macaddr == 0) |
316 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd | 317 | arr[i++].macaddr = mc_entry->macaddr; |
52e21b1b | 318 | num_registrations -= 2; |
21eee2dd TK |
319 | } |
320 | } | |
321 | } | |
322 | ||
323 | out_update: | |
324 | kfree(ehea_bcmc_regs.arr); | |
325 | ehea_bcmc_regs.arr = arr; | |
326 | ehea_bcmc_regs.num_entries = i; | |
52e21b1b JBT |
327 | out: |
328 | spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags); | |
21eee2dd TK |
329 | } |
330 | ||
239c562c AB |
331 | static struct rtnl_link_stats64 *ehea_get_stats64(struct net_device *dev, |
332 | struct rtnl_link_stats64 *stats) | |
7a291083 JBT |
333 | { |
334 | struct ehea_port *port = netdev_priv(dev); | |
2aefcad8 | 335 | u64 rx_packets = 0, tx_packets = 0, rx_bytes = 0, tx_bytes = 0; |
7a291083 JBT |
336 | int i; |
337 | ||
2aefcad8 | 338 | for (i = 0; i < port->num_def_qps; i++) { |
339 | rx_packets += port->port_res[i].rx_packets; | |
340 | rx_bytes += port->port_res[i].rx_bytes; | |
341 | } | |
342 | ||
723f28e4 | 343 | for (i = 0; i < port->num_def_qps; i++) { |
2aefcad8 | 344 | tx_packets += port->port_res[i].tx_packets; |
345 | tx_bytes += port->port_res[i].tx_bytes; | |
346 | } | |
347 | ||
348 | stats->tx_packets = tx_packets; | |
349 | stats->rx_bytes = rx_bytes; | |
350 | stats->tx_bytes = tx_bytes; | |
351 | stats->rx_packets = rx_packets; | |
352 | ||
09c1d446 ED |
353 | stats->multicast = port->stats.multicast; |
354 | stats->rx_errors = port->stats.rx_errors; | |
355 | return stats; | |
2aefcad8 | 356 | } |
357 | ||
358 | static void ehea_update_stats(struct work_struct *work) | |
359 | { | |
360 | struct ehea_port *port = | |
361 | container_of(work, struct ehea_port, stats_work.work); | |
362 | struct net_device *dev = port->netdev; | |
239c562c | 363 | struct rtnl_link_stats64 *stats = &port->stats; |
2aefcad8 | 364 | struct hcp_ehea_port_cb2 *cb2; |
365 | u64 hret; | |
7a291083 | 366 | |
3d8009c7 | 367 | cb2 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 368 | if (!cb2) { |
2aefcad8 | 369 | netdev_err(dev, "No mem for cb2. Some interface statistics were not updated\n"); |
370 | goto resched; | |
7a291083 JBT |
371 | } |
372 | ||
373 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
374 | port->logical_port_id, | |
375 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
376 | if (hret != H_SUCCESS) { | |
8c4877a4 | 377 | netdev_err(dev, "query_ehea_port failed\n"); |
7a291083 JBT |
378 | goto out_herr; |
379 | } | |
380 | ||
381 | if (netif_msg_hw(port)) | |
382 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
383 | ||
7a291083 JBT |
384 | stats->multicast = cb2->rxmcp; |
385 | stats->rx_errors = cb2->rxuerr; | |
7a291083 JBT |
386 | |
387 | out_herr: | |
3faf2693 | 388 | free_page((unsigned long)cb2); |
2aefcad8 | 389 | resched: |
67c170a2 AB |
390 | schedule_delayed_work(&port->stats_work, |
391 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
392 | } |
393 | ||
394 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
395 | { | |
396 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
397 | struct net_device *dev = pr->port->netdev; | |
398 | int max_index_mask = pr->rq1_skba.len - 1; | |
2c69448b JBT |
399 | int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes; |
400 | int adder = 0; | |
7a291083 JBT |
401 | int i; |
402 | ||
2c69448b JBT |
403 | pr->rq1_skba.os_skbs = 0; |
404 | ||
405 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { | |
44fb3126 TK |
406 | if (nr_of_wqes > 0) |
407 | pr->rq1_skba.index = index; | |
2c69448b | 408 | pr->rq1_skba.os_skbs = fill_wqes; |
7a291083 | 409 | return; |
2c69448b | 410 | } |
7a291083 | 411 | |
2c69448b | 412 | for (i = 0; i < fill_wqes; i++) { |
7a291083 JBT |
413 | if (!skb_arr_rq1[index]) { |
414 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
415 | EHEA_L_PKT_SIZE); | |
416 | if (!skb_arr_rq1[index]) { | |
2c69448b | 417 | pr->rq1_skba.os_skbs = fill_wqes - i; |
7a291083 JBT |
418 | break; |
419 | } | |
420 | } | |
421 | index--; | |
422 | index &= max_index_mask; | |
2c69448b | 423 | adder++; |
7a291083 | 424 | } |
2c69448b JBT |
425 | |
426 | if (adder == 0) | |
427 | return; | |
428 | ||
7a291083 | 429 | /* Ring doorbell */ |
2c69448b | 430 | ehea_update_rq1a(pr->qp, adder); |
7a291083 JBT |
431 | } |
432 | ||
e2878806 | 433 | static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) |
7a291083 | 434 | { |
7a291083 JBT |
435 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; |
436 | struct net_device *dev = pr->port->netdev; | |
437 | int i; | |
438 | ||
5c7e57f7 | 439 | if (nr_rq1a > pr->rq1_skba.len) { |
8c4877a4 | 440 | netdev_err(dev, "NR_RQ1A bigger than skb array len\n"); |
5c7e57f7 BL |
441 | return; |
442 | } | |
443 | ||
444 | for (i = 0; i < nr_rq1a; i++) { | |
7a291083 | 445 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); |
720a43ef | 446 | if (!skb_arr_rq1[i]) |
e2878806 | 447 | break; |
7a291083 JBT |
448 | } |
449 | /* Ring doorbell */ | |
f76957fc | 450 | ehea_update_rq1a(pr->qp, i - 1); |
7a291083 JBT |
451 | } |
452 | ||
453 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
454 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
455 | int num_wqes, int wqe_type, int packet_size) | |
456 | { | |
457 | struct net_device *dev = pr->port->netdev; | |
458 | struct ehea_qp *qp = pr->qp; | |
459 | struct sk_buff **skb_arr = q_skba->arr; | |
460 | struct ehea_rwqe *rwqe; | |
461 | int i, index, max_index_mask, fill_wqes; | |
2c69448b | 462 | int adder = 0; |
7a291083 JBT |
463 | int ret = 0; |
464 | ||
465 | fill_wqes = q_skba->os_skbs + num_wqes; | |
2c69448b | 466 | q_skba->os_skbs = 0; |
7a291083 | 467 | |
2c69448b JBT |
468 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
469 | q_skba->os_skbs = fill_wqes; | |
7a291083 | 470 | return ret; |
2c69448b | 471 | } |
7a291083 JBT |
472 | |
473 | index = q_skba->index; | |
474 | max_index_mask = q_skba->len - 1; | |
475 | for (i = 0; i < fill_wqes; i++) { | |
2c69448b | 476 | u64 tmp_addr; |
89d71a66 ED |
477 | struct sk_buff *skb; |
478 | ||
479 | skb = netdev_alloc_skb_ip_align(dev, packet_size); | |
7a291083 | 480 | if (!skb) { |
7a291083 | 481 | q_skba->os_skbs = fill_wqes - i; |
e2878806 | 482 | if (q_skba->os_skbs == q_skba->len - 2) { |
8c4877a4 JP |
483 | netdev_info(pr->port->netdev, |
484 | "rq%i ran dry - no mem for skb\n", | |
485 | rq_nr); | |
e2878806 TK |
486 | ret = -ENOMEM; |
487 | } | |
7a291083 JBT |
488 | break; |
489 | } | |
7a291083 JBT |
490 | |
491 | skb_arr[index] = skb; | |
2c69448b JBT |
492 | tmp_addr = ehea_map_vaddr(skb->data); |
493 | if (tmp_addr == -1) { | |
cfbe4063 | 494 | dev_consume_skb_any(skb); |
2c69448b JBT |
495 | q_skba->os_skbs = fill_wqes - i; |
496 | ret = 0; | |
497 | break; | |
498 | } | |
7a291083 JBT |
499 | |
500 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
501 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
d1d25aab | 502 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); |
7a291083 | 503 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; |
2c69448b | 504 | rwqe->sg_list[0].vaddr = tmp_addr; |
7a291083 JBT |
505 | rwqe->sg_list[0].len = packet_size; |
506 | rwqe->data_segments = 1; | |
507 | ||
508 | index++; | |
509 | index &= max_index_mask; | |
2c69448b | 510 | adder++; |
7a291083 | 511 | } |
44c82152 | 512 | |
7a291083 | 513 | q_skba->index = index; |
2c69448b JBT |
514 | if (adder == 0) |
515 | goto out; | |
7a291083 JBT |
516 | |
517 | /* Ring doorbell */ | |
518 | iosync(); | |
519 | if (rq_nr == 2) | |
2c69448b | 520 | ehea_update_rq2a(pr->qp, adder); |
7a291083 | 521 | else |
2c69448b | 522 | ehea_update_rq3a(pr->qp, adder); |
44c82152 | 523 | out: |
7a291083 JBT |
524 | return ret; |
525 | } | |
526 | ||
527 | ||
528 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
529 | { | |
530 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
531 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
89d71a66 | 532 | EHEA_RQ2_PKT_SIZE); |
7a291083 JBT |
533 | } |
534 | ||
535 | ||
536 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
537 | { | |
538 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
539 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
89d71a66 | 540 | EHEA_MAX_PACKET_SIZE); |
7a291083 JBT |
541 | } |
542 | ||
543 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
544 | { | |
545 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
546 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
547 | return 0; | |
548 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
549 | (cqe->header_length == 0)) | |
550 | return 0; | |
551 | return -EINVAL; | |
552 | } | |
553 | ||
554 | static inline void ehea_fill_skb(struct net_device *dev, | |
b9564468 AB |
555 | struct sk_buff *skb, struct ehea_cqe *cqe, |
556 | struct ehea_port_res *pr) | |
7a291083 JBT |
557 | { |
558 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
559 | ||
560 | skb_put(skb, length); | |
7a291083 | 561 | skb->protocol = eth_type_trans(skb, dev); |
71085ce8 BL |
562 | |
563 | /* The packet was not an IPV4 packet so a complemented checksum was | |
564 | calculated. The value is found in the Internet Checksum field. */ | |
565 | if (cqe->status & EHEA_CQE_BLIND_CKSUM) { | |
566 | skb->ip_summed = CHECKSUM_COMPLETE; | |
567 | skb->csum = csum_unfold(~cqe->inet_checksum_value); | |
568 | } else | |
569 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
b9564468 AB |
570 | |
571 | skb_record_rx_queue(skb, pr - &pr->port->port_res[0]); | |
7a291083 JBT |
572 | } |
573 | ||
574 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
575 | int arr_len, | |
576 | struct ehea_cqe *cqe) | |
577 | { | |
578 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
579 | struct sk_buff *skb; | |
580 | void *pref; | |
581 | int x; | |
582 | ||
583 | x = skb_index + 1; | |
584 | x &= (arr_len - 1); | |
585 | ||
586 | pref = skb_array[x]; | |
0b2febf3 HH |
587 | if (pref) { |
588 | prefetchw(pref); | |
589 | prefetchw(pref + EHEA_CACHE_LINE); | |
590 | ||
591 | pref = (skb_array[x]->data); | |
592 | prefetch(pref); | |
593 | prefetch(pref + EHEA_CACHE_LINE); | |
594 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
595 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
596 | } | |
597 | ||
7a291083 JBT |
598 | skb = skb_array[skb_index]; |
599 | skb_array[skb_index] = NULL; | |
600 | return skb; | |
601 | } | |
602 | ||
603 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
604 | int arr_len, int wqe_index) | |
605 | { | |
606 | struct sk_buff *skb; | |
607 | void *pref; | |
608 | int x; | |
609 | ||
610 | x = wqe_index + 1; | |
611 | x &= (arr_len - 1); | |
612 | ||
613 | pref = skb_array[x]; | |
0b2febf3 HH |
614 | if (pref) { |
615 | prefetchw(pref); | |
616 | prefetchw(pref + EHEA_CACHE_LINE); | |
7a291083 | 617 | |
0b2febf3 HH |
618 | pref = (skb_array[x]->data); |
619 | prefetchw(pref); | |
620 | prefetchw(pref + EHEA_CACHE_LINE); | |
621 | } | |
7a291083 JBT |
622 | |
623 | skb = skb_array[wqe_index]; | |
624 | skb_array[wqe_index] = NULL; | |
625 | return skb; | |
626 | } | |
627 | ||
628 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
629 | struct ehea_cqe *cqe, int *processed_rq2, | |
630 | int *processed_rq3) | |
631 | { | |
632 | struct sk_buff *skb; | |
633 | ||
acbddb59 JBT |
634 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
635 | pr->p_stats.err_tcp_cksum++; | |
636 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
637 | pr->p_stats.err_ip_cksum++; | |
638 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
639 | pr->p_stats.err_frame_crc++; | |
640 | ||
7a291083 JBT |
641 | if (rq == 2) { |
642 | *processed_rq2 += 1; | |
643 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
644 | dev_kfree_skb(skb); | |
645 | } else if (rq == 3) { | |
646 | *processed_rq3 += 1; | |
647 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
648 | dev_kfree_skb(skb); | |
649 | } | |
650 | ||
651 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
58dd8258 | 652 | if (netif_msg_rx_err(pr->port)) { |
8c4877a4 JP |
653 | pr_err("Critical receive error for QP %d. Resetting port.\n", |
654 | pr->qp->init_attr.qp_nr); | |
58dd8258 TK |
655 | ehea_dump(cqe, sizeof(*cqe), "CQE"); |
656 | } | |
2f69ae01 | 657 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
658 | return 1; |
659 | } | |
660 | ||
661 | return 0; | |
662 | } | |
663 | ||
bea3348e SH |
664 | static int ehea_proc_rwqes(struct net_device *dev, |
665 | struct ehea_port_res *pr, | |
666 | int budget) | |
7a291083 | 667 | { |
18604c54 | 668 | struct ehea_port *port = pr->port; |
7a291083 JBT |
669 | struct ehea_qp *qp = pr->qp; |
670 | struct ehea_cqe *cqe; | |
671 | struct sk_buff *skb; | |
672 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
673 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
674 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
675 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
676 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
677 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
678 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
ce45b873 | 679 | u64 processed_bytes = 0; |
bea3348e | 680 | int wqe_index, last_wqe_index, rq, port_reset; |
7a291083 JBT |
681 | |
682 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
683 | last_wqe_index = 0; | |
7a291083 | 684 | |
7a291083 | 685 | cqe = ehea_poll_rq1(qp, &wqe_index); |
bea3348e | 686 | while ((processed < budget) && cqe) { |
7a291083 JBT |
687 | ehea_inc_rq1(qp); |
688 | processed_rq1++; | |
689 | processed++; | |
7a291083 JBT |
690 | if (netif_msg_rx_status(port)) |
691 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
692 | ||
693 | last_wqe_index = wqe_index; | |
694 | rmb(); | |
695 | if (!ehea_check_cqe(cqe, &rq)) { | |
508d2b5d DM |
696 | if (rq == 1) { |
697 | /* LL RQ1 */ | |
7a291083 JBT |
698 | skb = get_skb_by_index_ll(skb_arr_rq1, |
699 | skb_arr_rq1_len, | |
700 | wqe_index); | |
701 | if (unlikely(!skb)) { | |
782615ae | 702 | netif_info(port, rx_err, dev, |
8c4877a4 | 703 | "LL rq1: skb=NULL\n"); |
18604c54 | 704 | |
bea3348e | 705 | skb = netdev_alloc_skb(dev, |
7a291083 | 706 | EHEA_L_PKT_SIZE); |
720a43ef | 707 | if (!skb) |
7a291083 JBT |
708 | break; |
709 | } | |
508d2b5d | 710 | skb_copy_to_linear_data(skb, ((char *)cqe) + 64, |
d1d25aab | 711 | cqe->num_bytes_transfered - 4); |
b9564468 | 712 | ehea_fill_skb(dev, skb, cqe, pr); |
508d2b5d DM |
713 | } else if (rq == 2) { |
714 | /* RQ2 */ | |
7a291083 JBT |
715 | skb = get_skb_by_index(skb_arr_rq2, |
716 | skb_arr_rq2_len, cqe); | |
717 | if (unlikely(!skb)) { | |
8c4877a4 JP |
718 | netif_err(port, rx_err, dev, |
719 | "rq2: skb=NULL\n"); | |
7a291083 JBT |
720 | break; |
721 | } | |
b9564468 | 722 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 | 723 | processed_rq2++; |
508d2b5d DM |
724 | } else { |
725 | /* RQ3 */ | |
7a291083 JBT |
726 | skb = get_skb_by_index(skb_arr_rq3, |
727 | skb_arr_rq3_len, cqe); | |
728 | if (unlikely(!skb)) { | |
8c4877a4 JP |
729 | netif_err(port, rx_err, dev, |
730 | "rq3: skb=NULL\n"); | |
7a291083 JBT |
731 | break; |
732 | } | |
b9564468 | 733 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 JBT |
734 | processed_rq3++; |
735 | } | |
736 | ||
ce45b873 | 737 | processed_bytes += skb->len; |
3428414f AB |
738 | |
739 | if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) | |
e5905c83 DM |
740 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
741 | cqe->vlan_tag); | |
3428414f AB |
742 | |
743 | napi_gro_receive(&pr->napi, skb); | |
18604c54 | 744 | } else { |
acbddb59 | 745 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
746 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
747 | &processed_rq2, | |
748 | &processed_rq3); | |
749 | if (port_reset) | |
750 | break; | |
751 | } | |
752 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
753 | } | |
754 | ||
7a291083 | 755 | pr->rx_packets += processed; |
ce45b873 | 756 | pr->rx_bytes += processed_bytes; |
7a291083 JBT |
757 | |
758 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
759 | ehea_refill_rq2(pr, processed_rq2); | |
760 | ehea_refill_rq3(pr, processed_rq3); | |
761 | ||
bea3348e | 762 | return processed; |
7a291083 JBT |
763 | } |
764 | ||
2928db4c AD |
765 | #define SWQE_RESTART_CHECK 0xdeadbeaff00d0000ull |
766 | ||
767 | static void reset_sq_restart_flag(struct ehea_port *port) | |
768 | { | |
769 | int i; | |
770 | ||
723f28e4 | 771 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c AD |
772 | struct ehea_port_res *pr = &port->port_res[i]; |
773 | pr->sq_restart_flag = 0; | |
774 | } | |
a8bb69f7 | 775 | wake_up(&port->restart_wq); |
2928db4c AD |
776 | } |
777 | ||
778 | static void check_sqs(struct ehea_port *port) | |
779 | { | |
780 | struct ehea_swqe *swqe; | |
781 | int swqe_index; | |
782 | int i, k; | |
783 | ||
723f28e4 | 784 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c | 785 | struct ehea_port_res *pr = &port->port_res[i]; |
a8bb69f7 | 786 | int ret; |
2928db4c AD |
787 | k = 0; |
788 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
789 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
790 | atomic_dec(&pr->swqe_avail); | |
791 | ||
792 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
793 | swqe->wr_id = SWQE_RESTART_CHECK; | |
794 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
795 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT; | |
796 | swqe->immediate_data_length = 80; | |
797 | ||
798 | ehea_post_swqe(pr->qp, swqe); | |
799 | ||
a8bb69f7 BL |
800 | ret = wait_event_timeout(port->restart_wq, |
801 | pr->sq_restart_flag == 0, | |
802 | msecs_to_jiffies(100)); | |
803 | ||
804 | if (!ret) { | |
8c4877a4 | 805 | pr_err("HW/SW queues out of sync\n"); |
a8bb69f7 BL |
806 | ehea_schedule_port_reset(pr->port); |
807 | return; | |
2928db4c AD |
808 | } |
809 | } | |
2928db4c AD |
810 | } |
811 | ||
812 | ||
18604c54 | 813 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 814 | { |
acbddb59 | 815 | struct sk_buff *skb; |
7a291083 JBT |
816 | struct ehea_cq *send_cq = pr->send_cq; |
817 | struct ehea_cqe *cqe; | |
18604c54 | 818 | int quota = my_quota; |
7a291083 JBT |
819 | int cqe_counter = 0; |
820 | int swqe_av = 0; | |
acbddb59 | 821 | int index; |
b9564468 AB |
822 | struct netdev_queue *txq = netdev_get_tx_queue(pr->port->netdev, |
823 | pr - &pr->port->port_res[0]); | |
7a291083 | 824 | |
18604c54 | 825 | cqe = ehea_poll_cq(send_cq); |
508d2b5d | 826 | while (cqe && (quota > 0)) { |
18604c54 JBT |
827 | ehea_inc_cq(send_cq); |
828 | ||
7a291083 JBT |
829 | cqe_counter++; |
830 | rmb(); | |
2928db4c AD |
831 | |
832 | if (cqe->wr_id == SWQE_RESTART_CHECK) { | |
833 | pr->sq_restart_flag = 1; | |
834 | swqe_av++; | |
835 | break; | |
836 | } | |
837 | ||
7a291083 | 838 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { |
8c4877a4 JP |
839 | pr_err("Bad send completion status=0x%04X\n", |
840 | cqe->status); | |
ea96ceac | 841 | |
7a291083 JBT |
842 | if (netif_msg_tx_err(pr->port)) |
843 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
ea96ceac TK |
844 | |
845 | if (cqe->status & EHEA_CQE_STAT_RESET_MASK) { | |
8c4877a4 | 846 | pr_err("Resetting port\n"); |
ea96ceac TK |
847 | ehea_schedule_port_reset(pr->port); |
848 | break; | |
849 | } | |
7a291083 JBT |
850 | } |
851 | ||
852 | if (netif_msg_tx_done(pr->port)) | |
853 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
854 | ||
855 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
856 | == EHEA_SWQE2_TYPE)) { |
857 | ||
858 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
859 | skb = pr->sq_skba.arr[index]; | |
cfbe4063 | 860 | dev_consume_skb_any(skb); |
acbddb59 JBT |
861 | pr->sq_skba.arr[index] = NULL; |
862 | } | |
7a291083 JBT |
863 | |
864 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
865 | quota--; | |
18604c54 JBT |
866 | |
867 | cqe = ehea_poll_cq(send_cq); | |
ee289b64 | 868 | } |
7a291083 JBT |
869 | |
870 | ehea_update_feca(send_cq, cqe_counter); | |
871 | atomic_add(swqe_av, &pr->swqe_avail); | |
872 | ||
b9564468 AB |
873 | if (unlikely(netif_tx_queue_stopped(txq) && |
874 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))) { | |
875 | __netif_tx_lock(txq, smp_processor_id()); | |
876 | if (netif_tx_queue_stopped(txq) && | |
877 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th)) | |
878 | netif_tx_wake_queue(txq); | |
879 | __netif_tx_unlock(txq); | |
7a291083 | 880 | } |
b9564468 | 881 | |
5b27d427 | 882 | wake_up(&pr->port->swqe_avail_wq); |
7a291083 | 883 | |
18604c54 | 884 | return cqe; |
7a291083 JBT |
885 | } |
886 | ||
bea3348e | 887 | #define EHEA_POLL_MAX_CQES 65535 |
18604c54 | 888 | |
bea3348e | 889 | static int ehea_poll(struct napi_struct *napi, int budget) |
7a291083 | 890 | { |
508d2b5d DM |
891 | struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, |
892 | napi); | |
bea3348e | 893 | struct net_device *dev = pr->port->netdev; |
18604c54 JBT |
894 | struct ehea_cqe *cqe; |
895 | struct ehea_cqe *cqe_skb = NULL; | |
222ca96b | 896 | int wqe_index; |
bea3348e | 897 | int rx = 0; |
18604c54 | 898 | |
bea3348e | 899 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
222ca96b | 900 | rx += ehea_proc_rwqes(dev, pr, budget - rx); |
bea3348e | 901 | |
222ca96b | 902 | while (rx != budget) { |
288379f0 | 903 | napi_complete(napi); |
18604c54 JBT |
904 | ehea_reset_cq_ep(pr->recv_cq); |
905 | ehea_reset_cq_ep(pr->send_cq); | |
906 | ehea_reset_cq_n1(pr->recv_cq); | |
907 | ehea_reset_cq_n1(pr->send_cq); | |
a91fb143 | 908 | rmb(); |
18604c54 JBT |
909 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); |
910 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
911 | ||
e542aa6b | 912 | if (!cqe && !cqe_skb) |
bea3348e | 913 | return rx; |
18604c54 | 914 | |
288379f0 | 915 | if (!napi_reschedule(napi)) |
bea3348e | 916 | return rx; |
18604c54 | 917 | |
bea3348e SH |
918 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
919 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
920 | } | |
e542aa6b | 921 | |
bea3348e | 922 | return rx; |
7a291083 JBT |
923 | } |
924 | ||
8d22c971 JBT |
925 | #ifdef CONFIG_NET_POLL_CONTROLLER |
926 | static void ehea_netpoll(struct net_device *dev) | |
927 | { | |
928 | struct ehea_port *port = netdev_priv(dev); | |
bea3348e | 929 | int i; |
8d22c971 | 930 | |
bea3348e | 931 | for (i = 0; i < port->num_def_qps; i++) |
288379f0 | 932 | napi_schedule(&port->port_res[i].napi); |
8d22c971 JBT |
933 | } |
934 | #endif | |
935 | ||
7d12e780 | 936 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
937 | { |
938 | struct ehea_port_res *pr = param; | |
18604c54 | 939 | |
288379f0 | 940 | napi_schedule(&pr->napi); |
18604c54 | 941 | |
7a291083 JBT |
942 | return IRQ_HANDLED; |
943 | } | |
944 | ||
7d12e780 | 945 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
946 | { |
947 | struct ehea_port *port = param; | |
948 | struct ehea_eqe *eqe; | |
d2db9eea | 949 | struct ehea_qp *qp; |
7a291083 | 950 | u32 qp_token; |
ea96ceac TK |
951 | u64 resource_type, aer, aerr; |
952 | int reset_port = 0; | |
7a291083 JBT |
953 | |
954 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 955 | |
7a291083 | 956 | while (eqe) { |
7a291083 | 957 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
8c4877a4 JP |
958 | pr_err("QP aff_err: entry=0x%llx, token=0x%x\n", |
959 | eqe->entry, qp_token); | |
d2db9eea JBT |
960 | |
961 | qp = port->port_res[qp_token].qp; | |
ea96ceac TK |
962 | |
963 | resource_type = ehea_error_data(port->adapter, qp->fw_handle, | |
964 | &aer, &aerr); | |
965 | ||
966 | if (resource_type == EHEA_AER_RESTYPE_QP) { | |
967 | if ((aer & EHEA_AER_RESET_MASK) || | |
968 | (aerr & EHEA_AERR_RESET_MASK)) | |
969 | reset_port = 1; | |
970 | } else | |
971 | reset_port = 1; /* Reset in case of CQ or EQ error */ | |
972 | ||
bb3a6449 | 973 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
974 | } |
975 | ||
ea96ceac | 976 | if (reset_port) { |
8c4877a4 | 977 | pr_err("Resetting port\n"); |
ea96ceac TK |
978 | ehea_schedule_port_reset(port); |
979 | } | |
d2db9eea | 980 | |
7a291083 JBT |
981 | return IRQ_HANDLED; |
982 | } | |
983 | ||
984 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
985 | int logical_port) | |
986 | { | |
987 | int i; | |
988 | ||
1acf2318 | 989 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 | 990 | if (adapter->port[i]) |
d1d25aab | 991 | if (adapter->port[i]->logical_port_id == logical_port) |
41b69c70 | 992 | return adapter->port[i]; |
7a291083 JBT |
993 | return NULL; |
994 | } | |
995 | ||
996 | int ehea_sense_port_attr(struct ehea_port *port) | |
997 | { | |
998 | int ret; | |
999 | u64 hret; | |
1000 | struct hcp_ehea_port_cb0 *cb0; | |
1001 | ||
508d2b5d | 1002 | /* may be called via ehea_neq_tasklet() */ |
3faf2693 | 1003 | cb0 = (void *)get_zeroed_page(GFP_ATOMIC); |
508d2b5d | 1004 | if (!cb0) { |
8c4877a4 | 1005 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1006 | ret = -ENOMEM; |
1007 | goto out; | |
1008 | } | |
1009 | ||
1010 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1011 | port->logical_port_id, H_PORT_CB0, | |
1012 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
1013 | cb0); | |
1014 | if (hret != H_SUCCESS) { | |
1015 | ret = -EIO; | |
1016 | goto out_free; | |
1017 | } | |
1018 | ||
1019 | /* MAC address */ | |
1020 | port->mac_addr = cb0->port_mac_addr << 16; | |
1021 | ||
508d2b5d | 1022 | if (!is_valid_ether_addr((u8 *)&port->mac_addr)) { |
7a291083 JBT |
1023 | ret = -EADDRNOTAVAIL; |
1024 | goto out_free; | |
1025 | } | |
1026 | ||
1027 | /* Port speed */ | |
1028 | switch (cb0->port_speed) { | |
1029 | case H_SPEED_10M_H: | |
1030 | port->port_speed = EHEA_SPEED_10M; | |
1031 | port->full_duplex = 0; | |
1032 | break; | |
1033 | case H_SPEED_10M_F: | |
1034 | port->port_speed = EHEA_SPEED_10M; | |
1035 | port->full_duplex = 1; | |
1036 | break; | |
1037 | case H_SPEED_100M_H: | |
1038 | port->port_speed = EHEA_SPEED_100M; | |
1039 | port->full_duplex = 0; | |
1040 | break; | |
1041 | case H_SPEED_100M_F: | |
1042 | port->port_speed = EHEA_SPEED_100M; | |
1043 | port->full_duplex = 1; | |
1044 | break; | |
1045 | case H_SPEED_1G_F: | |
1046 | port->port_speed = EHEA_SPEED_1G; | |
1047 | port->full_duplex = 1; | |
1048 | break; | |
1049 | case H_SPEED_10G_F: | |
1050 | port->port_speed = EHEA_SPEED_10G; | |
1051 | port->full_duplex = 1; | |
1052 | break; | |
1053 | default: | |
1054 | port->port_speed = 0; | |
1055 | port->full_duplex = 0; | |
1056 | break; | |
1057 | } | |
1058 | ||
e919b593 | 1059 | port->autoneg = 1; |
18604c54 | 1060 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 1061 | |
7a291083 | 1062 | /* Number of default QPs */ |
18604c54 JBT |
1063 | if (use_mcs) |
1064 | port->num_def_qps = cb0->num_default_qps; | |
1065 | else | |
1066 | port->num_def_qps = 1; | |
7a291083 JBT |
1067 | |
1068 | if (!port->num_def_qps) { | |
1069 | ret = -EINVAL; | |
1070 | goto out_free; | |
1071 | } | |
1072 | ||
7a291083 JBT |
1073 | ret = 0; |
1074 | out_free: | |
1075 | if (ret || netif_msg_probe(port)) | |
1076 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
3faf2693 | 1077 | free_page((unsigned long)cb0); |
7a291083 JBT |
1078 | out: |
1079 | return ret; | |
1080 | } | |
1081 | ||
1082 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
1083 | { | |
1084 | struct hcp_ehea_port_cb4 *cb4; | |
1085 | u64 hret; | |
1086 | int ret = 0; | |
1087 | ||
3faf2693 | 1088 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1089 | if (!cb4) { |
8c4877a4 | 1090 | pr_err("no mem for cb4\n"); |
7a291083 JBT |
1091 | ret = -ENOMEM; |
1092 | goto out; | |
1093 | } | |
1094 | ||
1095 | cb4->port_speed = port_speed; | |
1096 | ||
1097 | netif_carrier_off(port->netdev); | |
1098 | ||
1099 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1100 | port->logical_port_id, | |
1101 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
1102 | if (hret == H_SUCCESS) { | |
1103 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
1104 | ||
1105 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1106 | port->logical_port_id, | |
1107 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
1108 | cb4); | |
1109 | if (hret == H_SUCCESS) { | |
1110 | switch (cb4->port_speed) { | |
1111 | case H_SPEED_10M_H: | |
1112 | port->port_speed = EHEA_SPEED_10M; | |
1113 | port->full_duplex = 0; | |
1114 | break; | |
1115 | case H_SPEED_10M_F: | |
1116 | port->port_speed = EHEA_SPEED_10M; | |
1117 | port->full_duplex = 1; | |
1118 | break; | |
1119 | case H_SPEED_100M_H: | |
1120 | port->port_speed = EHEA_SPEED_100M; | |
1121 | port->full_duplex = 0; | |
1122 | break; | |
1123 | case H_SPEED_100M_F: | |
1124 | port->port_speed = EHEA_SPEED_100M; | |
1125 | port->full_duplex = 1; | |
1126 | break; | |
1127 | case H_SPEED_1G_F: | |
1128 | port->port_speed = EHEA_SPEED_1G; | |
1129 | port->full_duplex = 1; | |
1130 | break; | |
1131 | case H_SPEED_10G_F: | |
1132 | port->port_speed = EHEA_SPEED_10G; | |
1133 | port->full_duplex = 1; | |
1134 | break; | |
1135 | default: | |
1136 | port->port_speed = 0; | |
1137 | port->full_duplex = 0; | |
1138 | break; | |
1139 | } | |
1140 | } else { | |
8c4877a4 | 1141 | pr_err("Failed sensing port speed\n"); |
7a291083 JBT |
1142 | ret = -EIO; |
1143 | } | |
1144 | } else { | |
1145 | if (hret == H_AUTHORITY) { | |
8c4877a4 | 1146 | pr_info("Hypervisor denied setting port speed\n"); |
7a291083 JBT |
1147 | ret = -EPERM; |
1148 | } else { | |
1149 | ret = -EIO; | |
8c4877a4 | 1150 | pr_err("Failed setting port speed\n"); |
7a291083 JBT |
1151 | } |
1152 | } | |
8759cf76 JBT |
1153 | if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP)) |
1154 | netif_carrier_on(port->netdev); | |
1155 | ||
3faf2693 | 1156 | free_page((unsigned long)cb4); |
7a291083 JBT |
1157 | out: |
1158 | return ret; | |
1159 | } | |
1160 | ||
1161 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
1162 | { | |
1163 | int ret; | |
1164 | u8 ec; | |
1165 | u8 portnum; | |
1166 | struct ehea_port *port; | |
8c4877a4 | 1167 | struct net_device *dev; |
7a291083 JBT |
1168 | |
1169 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
1170 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
1171 | port = ehea_get_port(adapter, portnum); | |
8c4877a4 | 1172 | dev = port->netdev; |
7a291083 JBT |
1173 | |
1174 | switch (ec) { | |
1175 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
1176 | ||
1177 | if (!port) { | |
8c4877a4 | 1178 | netdev_err(dev, "unknown portnum %x\n", portnum); |
7a291083 JBT |
1179 | break; |
1180 | } | |
1181 | ||
1182 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
8c4877a4 | 1183 | if (!netif_carrier_ok(dev)) { |
1e1675cc | 1184 | ret = ehea_sense_port_attr(port); |
7a291083 | 1185 | if (ret) { |
8c4877a4 | 1186 | netdev_err(dev, "failed resensing port attributes\n"); |
7a291083 JBT |
1187 | break; |
1188 | } | |
1189 | ||
8c4877a4 JP |
1190 | netif_info(port, link, dev, |
1191 | "Logical port up: %dMbps %s Duplex\n", | |
1192 | port->port_speed, | |
1193 | port->full_duplex == 1 ? | |
1194 | "Full" : "Half"); | |
7a291083 | 1195 | |
8c4877a4 JP |
1196 | netif_carrier_on(dev); |
1197 | netif_wake_queue(dev); | |
7a291083 JBT |
1198 | } |
1199 | } else | |
8c4877a4 JP |
1200 | if (netif_carrier_ok(dev)) { |
1201 | netif_info(port, link, dev, | |
1202 | "Logical port down\n"); | |
1203 | netif_carrier_off(dev); | |
b9564468 | 1204 | netif_tx_disable(dev); |
7a291083 JBT |
1205 | } |
1206 | ||
1207 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
8759cf76 | 1208 | port->phy_link = EHEA_PHY_LINK_UP; |
8c4877a4 JP |
1209 | netif_info(port, link, dev, |
1210 | "Physical port up\n"); | |
8759cf76 | 1211 | if (prop_carrier_state) |
8c4877a4 | 1212 | netif_carrier_on(dev); |
7a291083 | 1213 | } else { |
8759cf76 | 1214 | port->phy_link = EHEA_PHY_LINK_DOWN; |
8c4877a4 JP |
1215 | netif_info(port, link, dev, |
1216 | "Physical port down\n"); | |
8759cf76 | 1217 | if (prop_carrier_state) |
8c4877a4 | 1218 | netif_carrier_off(dev); |
7a291083 JBT |
1219 | } |
1220 | ||
1221 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
8c4877a4 JP |
1222 | netdev_info(dev, |
1223 | "External switch port is primary port\n"); | |
7a291083 | 1224 | else |
8c4877a4 JP |
1225 | netdev_info(dev, |
1226 | "External switch port is backup port\n"); | |
7a291083 JBT |
1227 | |
1228 | break; | |
1229 | case EHEA_EC_ADAPTER_MALFUNC: | |
8c4877a4 | 1230 | netdev_err(dev, "Adapter malfunction\n"); |
7a291083 JBT |
1231 | break; |
1232 | case EHEA_EC_PORT_MALFUNC: | |
8c4877a4 JP |
1233 | netdev_info(dev, "Port malfunction\n"); |
1234 | netif_carrier_off(dev); | |
b9564468 | 1235 | netif_tx_disable(dev); |
7a291083 JBT |
1236 | break; |
1237 | default: | |
8c4877a4 | 1238 | netdev_err(dev, "unknown event code %x, eqe=0x%llX\n", ec, eqe); |
7a291083 JBT |
1239 | break; |
1240 | } | |
1241 | } | |
1242 | ||
1243 | static void ehea_neq_tasklet(unsigned long data) | |
1244 | { | |
508d2b5d | 1245 | struct ehea_adapter *adapter = (struct ehea_adapter *)data; |
7a291083 JBT |
1246 | struct ehea_eqe *eqe; |
1247 | u64 event_mask; | |
1248 | ||
1249 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1250 | pr_debug("eqe=%p\n", eqe); |
7a291083 JBT |
1251 | |
1252 | while (eqe) { | |
8c4877a4 | 1253 | pr_debug("*eqe=%lx\n", (unsigned long) eqe->entry); |
7a291083 JBT |
1254 | ehea_parse_eqe(adapter, eqe->entry); |
1255 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1256 | pr_debug("next eqe=%p\n", eqe); |
7a291083 JBT |
1257 | } |
1258 | ||
1259 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
1260 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
1261 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
1262 | ||
1263 | ehea_h_reset_events(adapter->handle, | |
1264 | adapter->neq->fw_handle, event_mask); | |
1265 | } | |
1266 | ||
7d12e780 | 1267 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
1268 | { |
1269 | struct ehea_adapter *adapter = param; | |
1270 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
1271 | return IRQ_HANDLED; | |
1272 | } | |
1273 | ||
1274 | ||
1275 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
1276 | { | |
1277 | int ret; | |
1278 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
1279 | ||
f76957fc | 1280 | ehea_init_fill_rq1(pr, pr->rq1_skba.len); |
7a291083 | 1281 | |
e2878806 | 1282 | ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); |
7a291083 JBT |
1283 | |
1284 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
1285 | ||
1286 | return ret; | |
1287 | } | |
1288 | ||
1289 | static int ehea_reg_interrupts(struct net_device *dev) | |
1290 | { | |
1291 | struct ehea_port *port = netdev_priv(dev); | |
1292 | struct ehea_port_res *pr; | |
1293 | int i, ret; | |
1294 | ||
7a291083 JBT |
1295 | |
1296 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
1297 | dev->name); | |
1298 | ||
6b08f3ae | 1299 | ret = ibmebus_request_irq(port->qp_eq->attr.ist1, |
7a291083 | 1300 | ehea_qp_aff_irq_handler, |
46c915f8 | 1301 | 0, port->int_aff_name, port); |
7a291083 | 1302 | if (ret) { |
8c4877a4 JP |
1303 | netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n", |
1304 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1305 | goto out_free_qpeq; |
1306 | } | |
1307 | ||
8c4877a4 JP |
1308 | netif_info(port, ifup, dev, |
1309 | "irq_handle 0x%X for function qp_aff_irq_handler registered\n", | |
1310 | port->qp_eq->attr.ist1); | |
7a291083 | 1311 | |
18604c54 | 1312 | |
723f28e4 | 1313 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
1314 | pr = &port->port_res[i]; |
1315 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 | 1316 | "%s-queue%d", dev->name, i); |
6b08f3ae | 1317 | ret = ibmebus_request_irq(pr->eq->attr.ist1, |
18604c54 | 1318 | ehea_recv_irq_handler, |
46c915f8 | 1319 | 0, pr->int_send_name, pr); |
7a291083 | 1320 | if (ret) { |
8c4877a4 JP |
1321 | netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n", |
1322 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1323 | goto out_free_req; |
1324 | } | |
8c4877a4 JP |
1325 | netif_info(port, ifup, dev, |
1326 | "irq_handle 0x%X for function ehea_queue_int %d registered\n", | |
1327 | pr->eq->attr.ist1, i); | |
7a291083 JBT |
1328 | } |
1329 | out: | |
1330 | return ret; | |
1331 | ||
18604c54 | 1332 | |
7a291083 JBT |
1333 | out_free_req: |
1334 | while (--i >= 0) { | |
18604c54 | 1335 | u32 ist = port->port_res[i].eq->attr.ist1; |
6b08f3ae | 1336 | ibmebus_free_irq(ist, &port->port_res[i]); |
7a291083 | 1337 | } |
18604c54 | 1338 | |
7a291083 | 1339 | out_free_qpeq: |
6b08f3ae | 1340 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 | 1341 | i = port->num_def_qps; |
18604c54 | 1342 | |
7a291083 | 1343 | goto out; |
18604c54 | 1344 | |
7a291083 JBT |
1345 | } |
1346 | ||
1347 | static void ehea_free_interrupts(struct net_device *dev) | |
1348 | { | |
1349 | struct ehea_port *port = netdev_priv(dev); | |
1350 | struct ehea_port_res *pr; | |
1351 | int i; | |
1352 | ||
1353 | /* send */ | |
18604c54 | 1354 | |
723f28e4 | 1355 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 | 1356 | pr = &port->port_res[i]; |
6b08f3ae | 1357 | ibmebus_free_irq(pr->eq->attr.ist1, pr); |
8c4877a4 JP |
1358 | netif_info(port, intr, dev, |
1359 | "free send irq for res %d with handle 0x%X\n", | |
1360 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1361 | } |
1362 | ||
1363 | /* associated events */ | |
6b08f3ae | 1364 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
8c4877a4 JP |
1365 | netif_info(port, intr, dev, |
1366 | "associated event interrupt for handle 0x%X freed\n", | |
1367 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1368 | } |
1369 | ||
1370 | static int ehea_configure_port(struct ehea_port *port) | |
1371 | { | |
1372 | int ret, i; | |
1373 | u64 hret, mask; | |
1374 | struct hcp_ehea_port_cb0 *cb0; | |
1375 | ||
1376 | ret = -ENOMEM; | |
3faf2693 | 1377 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1378 | if (!cb0) |
1379 | goto out; | |
1380 | ||
1381 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1382 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1383 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1384 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1385 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1386 | PXLY_RC_VLAN_FILTER) | |
1387 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1388 | ||
18604c54 JBT |
1389 | for (i = 0; i < port->num_mcs; i++) |
1390 | if (use_mcs) | |
1391 | cb0->default_qpn_arr[i] = | |
1392 | port->port_res[i].qp->init_attr.qp_nr; | |
1393 | else | |
1394 | cb0->default_qpn_arr[i] = | |
1395 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1396 | |
7a291083 JBT |
1397 | if (netif_msg_ifup(port)) |
1398 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1399 | ||
1400 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1401 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1402 | ||
1403 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1404 | port->logical_port_id, | |
1405 | H_PORT_CB0, mask, cb0); | |
1406 | ret = -EIO; | |
1407 | if (hret != H_SUCCESS) | |
1408 | goto out_free; | |
1409 | ||
1410 | ret = 0; | |
1411 | ||
1412 | out_free: | |
3faf2693 | 1413 | free_page((unsigned long)cb0); |
7a291083 JBT |
1414 | out: |
1415 | return ret; | |
1416 | } | |
1417 | ||
1886e5d2 | 1418 | static int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1419 | { |
e542aa6b | 1420 | int ret; |
7a291083 JBT |
1421 | struct ehea_adapter *adapter = pr->port->adapter; |
1422 | ||
e542aa6b JBT |
1423 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1424 | if (ret) | |
7a291083 JBT |
1425 | goto out; |
1426 | ||
e542aa6b JBT |
1427 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1428 | if (ret) | |
1429 | goto out_free; | |
7a291083 JBT |
1430 | |
1431 | return 0; | |
1432 | ||
e542aa6b JBT |
1433 | out_free: |
1434 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1435 | out: |
8c4877a4 | 1436 | pr_err("Generating SMRS failed\n"); |
7a291083 JBT |
1437 | return -EIO; |
1438 | } | |
1439 | ||
1886e5d2 | 1440 | static int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1441 | { |
8e95a202 JP |
1442 | if ((ehea_rem_mr(&pr->send_mr)) || |
1443 | (ehea_rem_mr(&pr->recv_mr))) | |
e542aa6b JBT |
1444 | return -EIO; |
1445 | else | |
1446 | return 0; | |
7a291083 JBT |
1447 | } |
1448 | ||
1449 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1450 | { | |
508d2b5d | 1451 | int arr_size = sizeof(void *) * max_q_entries; |
7a291083 | 1452 | |
89bf67f1 | 1453 | q_skba->arr = vzalloc(arr_size); |
7a291083 JBT |
1454 | if (!q_skba->arr) |
1455 | return -ENOMEM; | |
1456 | ||
7a291083 JBT |
1457 | q_skba->len = max_q_entries; |
1458 | q_skba->index = 0; | |
1459 | q_skba->os_skbs = 0; | |
1460 | ||
1461 | return 0; | |
1462 | } | |
1463 | ||
1464 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1465 | struct port_res_cfg *pr_cfg, int queue_token) | |
1466 | { | |
1467 | struct ehea_adapter *adapter = port->adapter; | |
1468 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1469 | struct ehea_qp_init_attr *init_attr = NULL; | |
1470 | int ret = -EIO; | |
ce45b873 BL |
1471 | u64 tx_bytes, rx_bytes, tx_packets, rx_packets; |
1472 | ||
1473 | tx_bytes = pr->tx_bytes; | |
1474 | tx_packets = pr->tx_packets; | |
1475 | rx_bytes = pr->rx_bytes; | |
1476 | rx_packets = pr->rx_packets; | |
7a291083 JBT |
1477 | |
1478 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1479 | ||
ce45b873 BL |
1480 | pr->tx_bytes = rx_bytes; |
1481 | pr->tx_packets = tx_packets; | |
1482 | pr->rx_bytes = rx_bytes; | |
1483 | pr->rx_packets = rx_packets; | |
1484 | ||
7a291083 | 1485 | pr->port = port; |
7a291083 | 1486 | |
18604c54 JBT |
1487 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1488 | if (!pr->eq) { | |
8c4877a4 | 1489 | pr_err("create_eq failed (eq)\n"); |
7a291083 JBT |
1490 | goto out_free; |
1491 | } | |
1492 | ||
1493 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1494 | pr->eq->fw_handle, |
7a291083 JBT |
1495 | port->logical_port_id); |
1496 | if (!pr->recv_cq) { | |
8c4877a4 | 1497 | pr_err("create_cq failed (cq_recv)\n"); |
7a291083 JBT |
1498 | goto out_free; |
1499 | } | |
1500 | ||
1501 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1502 | pr->eq->fw_handle, |
7a291083 JBT |
1503 | port->logical_port_id); |
1504 | if (!pr->send_cq) { | |
8c4877a4 | 1505 | pr_err("create_cq failed (cq_send)\n"); |
7a291083 JBT |
1506 | goto out_free; |
1507 | } | |
1508 | ||
1509 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1510 | pr_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d\n", |
1511 | pr->send_cq->attr.act_nr_of_cqes, | |
1512 | pr->recv_cq->attr.act_nr_of_cqes); | |
7a291083 JBT |
1513 | |
1514 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1515 | if (!init_attr) { | |
1516 | ret = -ENOMEM; | |
8c4877a4 | 1517 | pr_err("no mem for ehea_qp_init_attr\n"); |
7a291083 JBT |
1518 | goto out_free; |
1519 | } | |
1520 | ||
1521 | init_attr->low_lat_rq1 = 1; | |
1522 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1523 | init_attr->rq_count = 3; | |
1524 | init_attr->qp_token = queue_token; | |
1525 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1526 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1527 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1528 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1529 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1530 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1531 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1532 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1533 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1534 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1535 | init_attr->port_nr = port->logical_port_id; | |
1536 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1537 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1538 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1539 | ||
1540 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1541 | if (!pr->qp) { | |
8c4877a4 | 1542 | pr_err("create_qp failed\n"); |
7a291083 JBT |
1543 | ret = -EIO; |
1544 | goto out_free; | |
1545 | } | |
1546 | ||
1547 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1548 | 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", |
1549 | init_attr->qp_nr, | |
1550 | init_attr->act_nr_send_wqes, | |
1551 | init_attr->act_nr_rwqes_rq1, | |
1552 | init_attr->act_nr_rwqes_rq2, | |
1553 | init_attr->act_nr_rwqes_rq3); | |
7a291083 | 1554 | |
44fb3126 TK |
1555 | pr->sq_skba_size = init_attr->act_nr_send_wqes + 1; |
1556 | ||
1557 | ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size); | |
7a291083 JBT |
1558 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); |
1559 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1560 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1561 | if (ret) | |
1562 | goto out_free; | |
1563 | ||
1564 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1565 | if (ehea_gen_smrs(pr) != 0) { | |
1566 | ret = -EIO; | |
1567 | goto out_free; | |
1568 | } | |
18604c54 | 1569 | |
7a291083 JBT |
1570 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1571 | ||
1572 | kfree(init_attr); | |
18604c54 | 1573 | |
bea3348e | 1574 | netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll, 64); |
18604c54 | 1575 | |
7a291083 JBT |
1576 | ret = 0; |
1577 | goto out; | |
1578 | ||
1579 | out_free: | |
1580 | kfree(init_attr); | |
1581 | vfree(pr->sq_skba.arr); | |
1582 | vfree(pr->rq1_skba.arr); | |
1583 | vfree(pr->rq2_skba.arr); | |
1584 | vfree(pr->rq3_skba.arr); | |
1585 | ehea_destroy_qp(pr->qp); | |
1586 | ehea_destroy_cq(pr->send_cq); | |
1587 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1588 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1589 | out: |
1590 | return ret; | |
1591 | } | |
1592 | ||
1593 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1594 | { | |
1595 | int ret, i; | |
1596 | ||
357eb46d HH |
1597 | if (pr->qp) |
1598 | netif_napi_del(&pr->napi); | |
1599 | ||
7a291083 JBT |
1600 | ret = ehea_destroy_qp(pr->qp); |
1601 | ||
1602 | if (!ret) { | |
1603 | ehea_destroy_cq(pr->send_cq); | |
1604 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1605 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1606 | |
1607 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1608 | if (pr->rq1_skba.arr[i]) | |
1609 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1610 | ||
1611 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1612 | if (pr->rq2_skba.arr[i]) | |
1613 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1614 | ||
1615 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1616 | if (pr->rq3_skba.arr[i]) | |
1617 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1618 | ||
1619 | for (i = 0; i < pr->sq_skba.len; i++) | |
1620 | if (pr->sq_skba.arr[i]) | |
1621 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1622 | ||
1623 | vfree(pr->rq1_skba.arr); | |
1624 | vfree(pr->rq2_skba.arr); | |
1625 | vfree(pr->rq3_skba.arr); | |
1626 | vfree(pr->sq_skba.arr); | |
1627 | ret = ehea_rem_smrs(pr); | |
1628 | } | |
1629 | return ret; | |
1630 | } | |
1631 | ||
13946f5e AB |
1632 | static void write_swqe2_immediate(struct sk_buff *skb, struct ehea_swqe *swqe, |
1633 | u32 lkey) | |
7a291083 | 1634 | { |
e743d313 | 1635 | int skb_data_size = skb_headlen(skb); |
7a291083 JBT |
1636 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; |
1637 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
13946f5e AB |
1638 | unsigned int immediate_len = SWQE2_MAX_IMM; |
1639 | ||
1640 | swqe->descriptors = 0; | |
7a291083 | 1641 | |
13946f5e AB |
1642 | if (skb_is_gso(skb)) { |
1643 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1644 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1645 | /* | |
1646 | * For TSO packets we only copy the headers into the | |
1647 | * immediate area. | |
1648 | */ | |
1649 | immediate_len = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); | |
1650 | } | |
7a291083 | 1651 | |
13946f5e AB |
1652 | if (skb_is_gso(skb) || skb_data_size >= SWQE2_MAX_IMM) { |
1653 | skb_copy_from_linear_data(skb, imm_data, immediate_len); | |
1654 | swqe->immediate_data_length = immediate_len; | |
7a291083 | 1655 | |
13946f5e | 1656 | if (skb_data_size > immediate_len) { |
7a291083 | 1657 | sg1entry->l_key = lkey; |
13946f5e | 1658 | sg1entry->len = skb_data_size - immediate_len; |
44a5b3d5 | 1659 | sg1entry->vaddr = |
13946f5e | 1660 | ehea_map_vaddr(skb->data + immediate_len); |
7a291083 JBT |
1661 | swqe->descriptors++; |
1662 | } | |
1663 | } else { | |
d626f62b | 1664 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1665 | swqe->immediate_data_length = skb_data_size; |
1666 | } | |
1667 | } | |
1668 | ||
1669 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1670 | struct ehea_swqe *swqe, u32 lkey) | |
1671 | { | |
1672 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1673 | skb_frag_t *frag; | |
1674 | int nfrags, sg1entry_contains_frag_data, i; | |
7a291083 JBT |
1675 | |
1676 | nfrags = skb_shinfo(skb)->nr_frags; | |
1677 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
508d2b5d | 1678 | sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list; |
7a291083 JBT |
1679 | sg1entry_contains_frag_data = 0; |
1680 | ||
13946f5e | 1681 | write_swqe2_immediate(skb, swqe, lkey); |
7a291083 JBT |
1682 | |
1683 | /* write descriptors */ | |
1684 | if (nfrags > 0) { | |
1685 | if (swqe->descriptors == 0) { | |
1686 | /* sg1entry not yet used */ | |
1687 | frag = &skb_shinfo(skb)->frags[0]; | |
1688 | ||
1689 | /* copy sg1entry data */ | |
1690 | sg1entry->l_key = lkey; | |
9e903e08 | 1691 | sg1entry->len = skb_frag_size(frag); |
44a5b3d5 | 1692 | sg1entry->vaddr = |
618c4a0a | 1693 | ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1694 | swqe->descriptors++; |
1695 | sg1entry_contains_frag_data = 1; | |
1696 | } | |
1697 | ||
1698 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1699 | ||
1700 | frag = &skb_shinfo(skb)->frags[i]; | |
1701 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1702 | ||
1703 | sgentry->l_key = lkey; | |
0110bba5 | 1704 | sgentry->len = skb_frag_size(frag); |
618c4a0a | 1705 | sgentry->vaddr = ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1706 | swqe->descriptors++; |
1707 | } | |
1708 | } | |
1709 | } | |
1710 | ||
1711 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1712 | { | |
1713 | int ret = 0; | |
1714 | u64 hret; | |
1715 | u8 reg_type; | |
1716 | ||
1717 | /* De/Register untagged packets */ | |
1718 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1719 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1720 | port->logical_port_id, | |
1721 | reg_type, port->mac_addr, 0, hcallid); | |
1722 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1723 | pr_err("%sregistering bc address failed (tagged)\n", |
1724 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1725 | ret = -EIO; |
1726 | goto out_herr; | |
1727 | } | |
1728 | ||
1729 | /* De/Register VLAN packets */ | |
1730 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1731 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1732 | port->logical_port_id, | |
1733 | reg_type, port->mac_addr, 0, hcallid); | |
1734 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1735 | pr_err("%sregistering bc address failed (vlan)\n", |
1736 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1737 | ret = -EIO; |
1738 | } | |
1739 | out_herr: | |
1740 | return ret; | |
1741 | } | |
1742 | ||
1743 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1744 | { | |
1745 | struct ehea_port *port = netdev_priv(dev); | |
1746 | struct sockaddr *mac_addr = sa; | |
1747 | struct hcp_ehea_port_cb0 *cb0; | |
1748 | int ret; | |
1749 | u64 hret; | |
1750 | ||
1751 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1752 | ret = -EADDRNOTAVAIL; | |
1753 | goto out; | |
1754 | } | |
1755 | ||
3faf2693 | 1756 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1757 | if (!cb0) { |
8c4877a4 | 1758 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1759 | ret = -ENOMEM; |
1760 | goto out; | |
1761 | } | |
1762 | ||
1763 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1764 | ||
1765 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1766 | ||
1767 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1768 | port->logical_port_id, H_PORT_CB0, | |
1769 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1770 | if (hret != H_SUCCESS) { | |
1771 | ret = -EIO; | |
1772 | goto out_free; | |
1773 | } | |
1774 | ||
1775 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1776 | ||
1777 | /* Deregister old MAC in pHYP */ | |
00aaea2f JBT |
1778 | if (port->state == EHEA_PORT_UP) { |
1779 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1780 | if (ret) | |
1781 | goto out_upregs; | |
1782 | } | |
7a291083 JBT |
1783 | |
1784 | port->mac_addr = cb0->port_mac_addr << 16; | |
1785 | ||
1786 | /* Register new MAC in pHYP */ | |
00aaea2f JBT |
1787 | if (port->state == EHEA_PORT_UP) { |
1788 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1789 | if (ret) | |
1790 | goto out_upregs; | |
1791 | } | |
7a291083 JBT |
1792 | |
1793 | ret = 0; | |
21eee2dd TK |
1794 | |
1795 | out_upregs: | |
1796 | ehea_update_bcmc_registrations(); | |
7a291083 | 1797 | out_free: |
3faf2693 | 1798 | free_page((unsigned long)cb0); |
7a291083 JBT |
1799 | out: |
1800 | return ret; | |
1801 | } | |
1802 | ||
1803 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1804 | { | |
7674a588 | 1805 | if (hret == H_AUTHORITY) |
8c4877a4 JP |
1806 | pr_info("Hypervisor denied %sabling promiscuous mode\n", |
1807 | enable == 1 ? "en" : "dis"); | |
7674a588 | 1808 | else |
8c4877a4 JP |
1809 | pr_err("failed %sabling promiscuous mode\n", |
1810 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1811 | } |
1812 | ||
1813 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1814 | { | |
1815 | struct ehea_port *port = netdev_priv(dev); | |
1816 | struct hcp_ehea_port_cb7 *cb7; | |
1817 | u64 hret; | |
1818 | ||
aa3bc6c6 | 1819 | if (enable == port->promisc) |
7a291083 JBT |
1820 | return; |
1821 | ||
3faf2693 | 1822 | cb7 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 | 1823 | if (!cb7) { |
8c4877a4 | 1824 | pr_err("no mem for cb7\n"); |
7a291083 JBT |
1825 | goto out; |
1826 | } | |
1827 | ||
1828 | /* Modify Pxs_DUCQPN in CB7 */ | |
1829 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1830 | ||
1831 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1832 | port->logical_port_id, | |
1833 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1834 | if (hret) { | |
1835 | ehea_promiscuous_error(hret, enable); | |
1836 | goto out; | |
1837 | } | |
1838 | ||
1839 | port->promisc = enable; | |
1840 | out: | |
3faf2693 | 1841 | free_page((unsigned long)cb7); |
7a291083 JBT |
1842 | } |
1843 | ||
1844 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1845 | u32 hcallid) | |
1846 | { | |
1847 | u64 hret; | |
1848 | u8 reg_type; | |
1849 | ||
5d384574 TLSC |
1850 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED; |
1851 | if (mc_mac_addr == 0) | |
1852 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1853 | |
1854 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1855 | port->logical_port_id, | |
1856 | reg_type, mc_mac_addr, 0, hcallid); | |
1857 | if (hret) | |
1858 | goto out; | |
1859 | ||
5d384574 TLSC |
1860 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL; |
1861 | if (mc_mac_addr == 0) | |
1862 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1863 | |
1864 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1865 | port->logical_port_id, | |
1866 | reg_type, mc_mac_addr, 0, hcallid); | |
1867 | out: | |
1868 | return hret; | |
1869 | } | |
1870 | ||
1871 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1872 | { | |
1873 | struct ehea_port *port = netdev_priv(dev); | |
1874 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1875 | struct list_head *pos; | |
1876 | struct list_head *temp; | |
1877 | int ret = 0; | |
1878 | u64 hret; | |
1879 | ||
1880 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1881 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1882 | ||
1883 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1884 | H_DEREG_BCMC); | |
1885 | if (hret) { | |
8c4877a4 | 1886 | pr_err("failed deregistering mcast MAC\n"); |
7a291083 JBT |
1887 | ret = -EIO; |
1888 | } | |
1889 | ||
1890 | list_del(pos); | |
1891 | kfree(mc_entry); | |
1892 | } | |
1893 | return ret; | |
1894 | } | |
1895 | ||
1896 | static void ehea_allmulti(struct net_device *dev, int enable) | |
1897 | { | |
1898 | struct ehea_port *port = netdev_priv(dev); | |
1899 | u64 hret; | |
1900 | ||
1901 | if (!port->allmulti) { | |
1902 | if (enable) { | |
1903 | /* Enable ALLMULTI */ | |
1904 | ehea_drop_multicast_list(dev); | |
1905 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
1906 | if (!hret) | |
1907 | port->allmulti = 1; | |
1908 | else | |
8c4877a4 JP |
1909 | netdev_err(dev, |
1910 | "failed enabling IFF_ALLMULTI\n"); | |
7a291083 | 1911 | } |
5d384574 | 1912 | } else { |
7a291083 JBT |
1913 | if (!enable) { |
1914 | /* Disable ALLMULTI */ | |
1915 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
1916 | if (!hret) | |
1917 | port->allmulti = 0; | |
1918 | else | |
8c4877a4 JP |
1919 | netdev_err(dev, |
1920 | "failed disabling IFF_ALLMULTI\n"); | |
7a291083 | 1921 | } |
5d384574 | 1922 | } |
7a291083 JBT |
1923 | } |
1924 | ||
508d2b5d | 1925 | static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) |
7a291083 JBT |
1926 | { |
1927 | struct ehea_mc_list *ehea_mcl_entry; | |
1928 | u64 hret; | |
1929 | ||
1e1675cc | 1930 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
b2adaca9 | 1931 | if (!ehea_mcl_entry) |
7a291083 | 1932 | return; |
7a291083 JBT |
1933 | |
1934 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
1935 | ||
1936 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
1937 | ||
1938 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
1939 | H_REG_BCMC); | |
1940 | if (!hret) | |
1941 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
1942 | else { | |
8c4877a4 | 1943 | pr_err("failed registering mcast MAC\n"); |
7a291083 JBT |
1944 | kfree(ehea_mcl_entry); |
1945 | } | |
1946 | } | |
1947 | ||
1948 | static void ehea_set_multicast_list(struct net_device *dev) | |
1949 | { | |
1950 | struct ehea_port *port = netdev_priv(dev); | |
22bedad3 | 1951 | struct netdev_hw_addr *ha; |
48e2f183 | 1952 | int ret; |
7a291083 | 1953 | |
47d59d01 | 1954 | ehea_promiscuous(dev, !!(dev->flags & IFF_PROMISC)); |
7a291083 JBT |
1955 | |
1956 | if (dev->flags & IFF_ALLMULTI) { | |
1957 | ehea_allmulti(dev, 1); | |
21eee2dd | 1958 | goto out; |
7a291083 JBT |
1959 | } |
1960 | ehea_allmulti(dev, 0); | |
1961 | ||
4cd24eaf | 1962 | if (!netdev_mc_empty(dev)) { |
7a291083 JBT |
1963 | ret = ehea_drop_multicast_list(dev); |
1964 | if (ret) { | |
1965 | /* Dropping the current multicast list failed. | |
1966 | * Enabling ALL_MULTI is the best we can do. | |
1967 | */ | |
1968 | ehea_allmulti(dev, 1); | |
1969 | } | |
1970 | ||
4cd24eaf | 1971 | if (netdev_mc_count(dev) > port->adapter->max_mc_mac) { |
8c4877a4 JP |
1972 | pr_info("Mcast registration limit reached (0x%llx). Use ALLMULTI!\n", |
1973 | port->adapter->max_mc_mac); | |
7a291083 JBT |
1974 | goto out; |
1975 | } | |
1976 | ||
22bedad3 JP |
1977 | netdev_for_each_mc_addr(ha, dev) |
1978 | ehea_add_multicast_entry(port, ha->addr); | |
508d2b5d | 1979 | |
7a291083 JBT |
1980 | } |
1981 | out: | |
21eee2dd | 1982 | ehea_update_bcmc_registrations(); |
7a291083 JBT |
1983 | } |
1984 | ||
1985 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
1986 | { | |
1987 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
1988 | return -EINVAL; | |
1989 | dev->mtu = new_mtu; | |
1990 | return 0; | |
1991 | } | |
1992 | ||
d695c335 | 1993 | static void xmit_common(struct sk_buff *skb, struct ehea_swqe *swqe) |
7a291083 | 1994 | { |
d695c335 | 1995 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT | EHEA_SWQE_CRC; |
d1d25aab | 1996 | |
be1d1486 | 1997 | if (vlan_get_protocol(skb) != htons(ETH_P_IP)) |
d695c335 | 1998 | return; |
7a291083 | 1999 | |
d695c335 AB |
2000 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
2001 | swqe->tx_control |= EHEA_SWQE_IP_CHECKSUM; | |
7a291083 | 2002 | |
d695c335 AB |
2003 | swqe->ip_start = skb_network_offset(skb); |
2004 | swqe->ip_end = swqe->ip_start + ip_hdrlen(skb) - 1; | |
7a291083 | 2005 | |
d695c335 AB |
2006 | switch (ip_hdr(skb)->protocol) { |
2007 | case IPPROTO_UDP: | |
2008 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2009 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
7a291083 | 2010 | |
d695c335 AB |
2011 | swqe->tcp_offset = swqe->ip_end + 1 + |
2012 | offsetof(struct udphdr, check); | |
d695c335 AB |
2013 | break; |
2014 | ||
2015 | case IPPROTO_TCP: | |
2016 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2017 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
2018 | ||
2019 | swqe->tcp_offset = swqe->ip_end + 1 + | |
2020 | offsetof(struct tcphdr, check); | |
d695c335 | 2021 | break; |
7a291083 | 2022 | } |
d695c335 AB |
2023 | } |
2024 | ||
2025 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
2026 | struct ehea_swqe *swqe, u32 lkey) | |
2027 | { | |
2028 | swqe->tx_control |= EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2029 | ||
2030 | xmit_common(skb, swqe); | |
7a291083 JBT |
2031 | |
2032 | write_swqe2_data(skb, dev, swqe, lkey); | |
2033 | } | |
2034 | ||
2035 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
2036 | struct ehea_swqe *swqe) | |
2037 | { | |
7a291083 | 2038 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; |
7a291083 | 2039 | |
d695c335 | 2040 | xmit_common(skb, swqe); |
d1d25aab | 2041 | |
30e2e90b | 2042 | if (!skb->data_len) |
d626f62b | 2043 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
30e2e90b AB |
2044 | else |
2045 | skb_copy_bits(skb, 0, imm_data, skb->len); | |
d695c335 | 2046 | |
7a291083 | 2047 | swqe->immediate_data_length = skb->len; |
cfbe4063 | 2048 | dev_consume_skb_any(skb); |
7a291083 JBT |
2049 | } |
2050 | ||
2051 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2052 | { | |
2053 | struct ehea_port *port = netdev_priv(dev); | |
2054 | struct ehea_swqe *swqe; | |
7a291083 JBT |
2055 | u32 lkey; |
2056 | int swqe_index; | |
18604c54 | 2057 | struct ehea_port_res *pr; |
b9564468 | 2058 | struct netdev_queue *txq; |
18604c54 | 2059 | |
b9564468 AB |
2060 | pr = &port->port_res[skb_get_queue_mapping(skb)]; |
2061 | txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); | |
18604c54 | 2062 | |
7a291083 JBT |
2063 | swqe = ehea_get_swqe(pr->qp, &swqe_index); |
2064 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
2065 | atomic_dec(&pr->swqe_avail); | |
2066 | ||
df8a39de | 2067 | if (skb_vlan_tag_present(skb)) { |
e5ccd961 | 2068 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; |
df8a39de | 2069 | swqe->vlan_tag = skb_vlan_tag_get(skb); |
e5ccd961 ED |
2070 | } |
2071 | ||
ce45b873 BL |
2072 | pr->tx_packets++; |
2073 | pr->tx_bytes += skb->len; | |
2074 | ||
7a291083 JBT |
2075 | if (skb->len <= SWQE3_MAX_IMM) { |
2076 | u32 sig_iv = port->sig_comp_iv; | |
2077 | u32 swqe_num = pr->swqe_id_counter; | |
2078 | ehea_xmit3(skb, dev, swqe); | |
2079 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
2080 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
2081 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
2082 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
2083 | sig_iv); | |
2084 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
2085 | pr->swqe_ll_count = 0; | |
2086 | } else | |
2087 | pr->swqe_ll_count += 1; | |
2088 | } else { | |
2089 | swqe->wr_id = | |
2090 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
2091 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 2092 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
2093 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
2094 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
2095 | ||
2096 | pr->sq_skba.index++; | |
2097 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
2098 | ||
2099 | lkey = pr->send_mr.lkey; | |
2100 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 2101 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
2102 | } |
2103 | pr->swqe_id_counter += 1; | |
2104 | ||
8c4877a4 JP |
2105 | netif_info(port, tx_queued, dev, |
2106 | "post swqe on QP %d\n", pr->qp->init_attr.qp_nr); | |
2107 | if (netif_msg_tx_queued(port)) | |
bff0a55f | 2108 | ehea_dump(swqe, 512, "swqe"); |
7a291083 | 2109 | |
2c69448b | 2110 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
b9564468 | 2111 | netif_tx_stop_queue(txq); |
2c69448b JBT |
2112 | swqe->tx_control |= EHEA_SWQE_PURGE; |
2113 | } | |
44c82152 | 2114 | |
7a291083 | 2115 | ehea_post_swqe(pr->qp, swqe); |
7a291083 JBT |
2116 | |
2117 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
b9564468 AB |
2118 | pr->p_stats.queue_stopped++; |
2119 | netif_tx_stop_queue(txq); | |
7a291083 | 2120 | } |
2c69448b | 2121 | |
7a291083 JBT |
2122 | return NETDEV_TX_OK; |
2123 | } | |
2124 | ||
80d5c368 | 2125 | static int ehea_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
7a291083 JBT |
2126 | { |
2127 | struct ehea_port *port = netdev_priv(dev); | |
2128 | struct ehea_adapter *adapter = port->adapter; | |
2129 | struct hcp_ehea_port_cb1 *cb1; | |
2130 | int index; | |
2131 | u64 hret; | |
8e586137 | 2132 | int err = 0; |
7a291083 | 2133 | |
3faf2693 | 2134 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2135 | if (!cb1) { |
8c4877a4 | 2136 | pr_err("no mem for cb1\n"); |
8e586137 | 2137 | err = -ENOMEM; |
7a291083 JBT |
2138 | goto out; |
2139 | } | |
2140 | ||
2141 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2142 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2143 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2144 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2145 | err = -EINVAL; |
7a291083 JBT |
2146 | goto out; |
2147 | } | |
2148 | ||
2149 | index = (vid / 64); | |
dec590c1 | 2150 | cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2151 | |
2152 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2153 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2154 | if (hret != H_SUCCESS) { |
8c4877a4 | 2155 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2156 | err = -EINVAL; |
2157 | } | |
7a291083 | 2158 | out: |
3faf2693 | 2159 | free_page((unsigned long)cb1); |
8e586137 | 2160 | return err; |
7a291083 JBT |
2161 | } |
2162 | ||
80d5c368 | 2163 | static int ehea_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
7a291083 JBT |
2164 | { |
2165 | struct ehea_port *port = netdev_priv(dev); | |
2166 | struct ehea_adapter *adapter = port->adapter; | |
2167 | struct hcp_ehea_port_cb1 *cb1; | |
2168 | int index; | |
2169 | u64 hret; | |
8e586137 | 2170 | int err = 0; |
7a291083 | 2171 | |
3faf2693 | 2172 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2173 | if (!cb1) { |
8c4877a4 | 2174 | pr_err("no mem for cb1\n"); |
8e586137 | 2175 | err = -ENOMEM; |
7a291083 JBT |
2176 | goto out; |
2177 | } | |
2178 | ||
2179 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2180 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2181 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2182 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2183 | err = -EINVAL; |
7a291083 JBT |
2184 | goto out; |
2185 | } | |
2186 | ||
2187 | index = (vid / 64); | |
dec590c1 | 2188 | cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2189 | |
2190 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2191 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2192 | if (hret != H_SUCCESS) { |
8c4877a4 | 2193 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2194 | err = -EINVAL; |
2195 | } | |
7a291083 | 2196 | out: |
3faf2693 | 2197 | free_page((unsigned long)cb1); |
8e586137 | 2198 | return err; |
7a291083 JBT |
2199 | } |
2200 | ||
1886e5d2 | 2201 | static int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) |
7a291083 JBT |
2202 | { |
2203 | int ret = -EIO; | |
2204 | u64 hret; | |
2205 | u16 dummy16 = 0; | |
2206 | u64 dummy64 = 0; | |
508d2b5d | 2207 | struct hcp_modify_qp_cb0 *cb0; |
7a291083 | 2208 | |
3faf2693 | 2209 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2210 | if (!cb0) { |
2211 | ret = -ENOMEM; | |
2212 | goto out; | |
2213 | } | |
2214 | ||
2215 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2216 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2217 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2218 | pr_err("query_ehea_qp failed (1)\n"); |
7a291083 JBT |
2219 | goto out; |
2220 | } | |
2221 | ||
2222 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2223 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2224 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2225 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2226 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2227 | pr_err("modify_ehea_qp failed (1)\n"); |
7a291083 JBT |
2228 | goto out; |
2229 | } | |
2230 | ||
2231 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2232 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2233 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2234 | pr_err("query_ehea_qp failed (2)\n"); |
7a291083 JBT |
2235 | goto out; |
2236 | } | |
2237 | ||
2238 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2239 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2240 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2241 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2242 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2243 | pr_err("modify_ehea_qp failed (2)\n"); |
7a291083 JBT |
2244 | goto out; |
2245 | } | |
2246 | ||
2247 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2248 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2249 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2250 | pr_err("query_ehea_qp failed (3)\n"); |
7a291083 JBT |
2251 | goto out; |
2252 | } | |
2253 | ||
2254 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2255 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2256 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2257 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2258 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2259 | pr_err("modify_ehea_qp failed (3)\n"); |
7a291083 JBT |
2260 | goto out; |
2261 | } | |
2262 | ||
2263 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2264 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2265 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2266 | pr_err("query_ehea_qp failed (4)\n"); |
7a291083 JBT |
2267 | goto out; |
2268 | } | |
2269 | ||
2270 | ret = 0; | |
2271 | out: | |
3faf2693 | 2272 | free_page((unsigned long)cb0); |
7a291083 JBT |
2273 | return ret; |
2274 | } | |
2275 | ||
723f28e4 | 2276 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps) |
7a291083 JBT |
2277 | { |
2278 | int ret, i; | |
2279 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2280 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2281 | ||
2282 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2283 | EHEA_MAX_ENTRIES_EQ, 1); | |
2284 | if (!port->qp_eq) { | |
2285 | ret = -EINVAL; | |
8c4877a4 | 2286 | pr_err("ehea_create_eq failed (qp_eq)\n"); |
7a291083 JBT |
2287 | goto out_kill_eq; |
2288 | } | |
2289 | ||
2290 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2291 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2292 | pr_cfg.max_entries_sq = sq_entries; |
2293 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2294 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2295 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2296 | ||
2297 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2298 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2299 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2300 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2301 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2302 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2303 | ||
2304 | for (i = 0; i < def_qps; i++) { | |
2305 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2306 | if (ret) | |
2307 | goto out_clean_pr; | |
2308 | } | |
723f28e4 | 2309 | for (i = def_qps; i < def_qps; i++) { |
7a291083 JBT |
2310 | ret = ehea_init_port_res(port, &port->port_res[i], |
2311 | &pr_cfg_small_rx, i); | |
2312 | if (ret) | |
2313 | goto out_clean_pr; | |
2314 | } | |
2315 | ||
2316 | return 0; | |
2317 | ||
2318 | out_clean_pr: | |
2319 | while (--i >= 0) | |
2320 | ehea_clean_portres(port, &port->port_res[i]); | |
2321 | ||
2322 | out_kill_eq: | |
2323 | ehea_destroy_eq(port->qp_eq); | |
2324 | return ret; | |
2325 | } | |
2326 | ||
2327 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2328 | { | |
2329 | int ret = 0; | |
2330 | int i; | |
2331 | ||
723f28e4 | 2332 | for (i = 0; i < port->num_def_qps; i++) |
7a291083 JBT |
2333 | ret |= ehea_clean_portres(port, &port->port_res[i]); |
2334 | ||
2335 | ret |= ehea_destroy_eq(port->qp_eq); | |
2336 | ||
2337 | return ret; | |
2338 | } | |
2339 | ||
35cf2e2e | 2340 | static void ehea_remove_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2341 | { |
35cf2e2e TK |
2342 | if (adapter->active_ports) |
2343 | return; | |
1211bb6d TK |
2344 | |
2345 | ehea_rem_mr(&adapter->mr); | |
2346 | } | |
2347 | ||
35cf2e2e | 2348 | static int ehea_add_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2349 | { |
35cf2e2e TK |
2350 | if (adapter->active_ports) |
2351 | return 0; | |
1211bb6d TK |
2352 | |
2353 | return ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2354 | } | |
2355 | ||
7a291083 JBT |
2356 | static int ehea_up(struct net_device *dev) |
2357 | { | |
2358 | int ret, i; | |
2359 | struct ehea_port *port = netdev_priv(dev); | |
7a291083 JBT |
2360 | |
2361 | if (port->state == EHEA_PORT_UP) | |
2362 | return 0; | |
2363 | ||
723f28e4 | 2364 | ret = ehea_port_res_setup(port, port->num_def_qps); |
7a291083 | 2365 | if (ret) { |
8c4877a4 | 2366 | netdev_err(dev, "port_res_failed\n"); |
7a291083 JBT |
2367 | goto out; |
2368 | } | |
2369 | ||
2370 | /* Set default QP for this port */ | |
2371 | ret = ehea_configure_port(port); | |
2372 | if (ret) { | |
8c4877a4 | 2373 | netdev_err(dev, "ehea_configure_port failed. ret:%d\n", ret); |
7a291083 JBT |
2374 | goto out_clean_pr; |
2375 | } | |
2376 | ||
7a291083 JBT |
2377 | ret = ehea_reg_interrupts(dev); |
2378 | if (ret) { | |
8c4877a4 | 2379 | netdev_err(dev, "reg_interrupts failed. ret:%d\n", ret); |
f9e29228 | 2380 | goto out_clean_pr; |
7a291083 JBT |
2381 | } |
2382 | ||
723f28e4 | 2383 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2384 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); |
2385 | if (ret) { | |
8c4877a4 | 2386 | netdev_err(dev, "activate_qp failed\n"); |
7a291083 JBT |
2387 | goto out_free_irqs; |
2388 | } | |
2389 | } | |
2390 | ||
508d2b5d | 2391 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2392 | ret = ehea_fill_port_res(&port->port_res[i]); |
2393 | if (ret) { | |
8c4877a4 | 2394 | netdev_err(dev, "out_free_irqs\n"); |
7a291083 JBT |
2395 | goto out_free_irqs; |
2396 | } | |
2397 | } | |
2398 | ||
21eee2dd TK |
2399 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); |
2400 | if (ret) { | |
2401 | ret = -EIO; | |
2402 | goto out_free_irqs; | |
2403 | } | |
2404 | ||
7a291083 | 2405 | port->state = EHEA_PORT_UP; |
21eee2dd TK |
2406 | |
2407 | ret = 0; | |
7a291083 JBT |
2408 | goto out; |
2409 | ||
2410 | out_free_irqs: | |
2411 | ehea_free_interrupts(dev); | |
2412 | ||
7a291083 JBT |
2413 | out_clean_pr: |
2414 | ehea_clean_all_portres(port); | |
2415 | out: | |
44c82152 | 2416 | if (ret) |
8c4877a4 | 2417 | netdev_info(dev, "Failed starting. ret=%i\n", ret); |
44c82152 | 2418 | |
21eee2dd | 2419 | ehea_update_bcmc_registrations(); |
21eee2dd | 2420 | ehea_update_firmware_handles(); |
21eee2dd | 2421 | |
7a291083 JBT |
2422 | return ret; |
2423 | } | |
2424 | ||
bea3348e SH |
2425 | static void port_napi_disable(struct ehea_port *port) |
2426 | { | |
2427 | int i; | |
2428 | ||
723f28e4 | 2429 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2430 | napi_disable(&port->port_res[i].napi); |
2431 | } | |
2432 | ||
2433 | static void port_napi_enable(struct ehea_port *port) | |
2434 | { | |
2435 | int i; | |
2436 | ||
723f28e4 | 2437 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2438 | napi_enable(&port->port_res[i].napi); |
2439 | } | |
2440 | ||
7a291083 JBT |
2441 | static int ehea_open(struct net_device *dev) |
2442 | { | |
2443 | int ret; | |
2444 | struct ehea_port *port = netdev_priv(dev); | |
2445 | ||
a5af6ad3 | 2446 | mutex_lock(&port->port_lock); |
7a291083 | 2447 | |
8c4877a4 | 2448 | netif_info(port, ifup, dev, "enabling port\n"); |
7a291083 JBT |
2449 | |
2450 | ret = ehea_up(dev); | |
bea3348e SH |
2451 | if (!ret) { |
2452 | port_napi_enable(port); | |
b9564468 | 2453 | netif_tx_start_all_queues(dev); |
bea3348e | 2454 | } |
7a291083 | 2455 | |
a5af6ad3 | 2456 | mutex_unlock(&port->port_lock); |
67c170a2 AB |
2457 | schedule_delayed_work(&port->stats_work, |
2458 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
2459 | |
2460 | return ret; | |
2461 | } | |
2462 | ||
2463 | static int ehea_down(struct net_device *dev) | |
2464 | { | |
bea3348e | 2465 | int ret; |
7a291083 JBT |
2466 | struct ehea_port *port = netdev_priv(dev); |
2467 | ||
2468 | if (port->state == EHEA_PORT_DOWN) | |
2469 | return 0; | |
2470 | ||
2471 | ehea_drop_multicast_list(dev); | |
5d384574 | 2472 | ehea_allmulti(dev, 0); |
21eee2dd TK |
2473 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); |
2474 | ||
7a291083 JBT |
2475 | ehea_free_interrupts(dev); |
2476 | ||
7a291083 | 2477 | port->state = EHEA_PORT_DOWN; |
44c82152 | 2478 | |
21eee2dd | 2479 | ehea_update_bcmc_registrations(); |
21eee2dd | 2480 | |
44c82152 TK |
2481 | ret = ehea_clean_all_portres(port); |
2482 | if (ret) | |
8c4877a4 | 2483 | netdev_info(dev, "Failed freeing resources. ret=%i\n", ret); |
44c82152 | 2484 | |
21eee2dd | 2485 | ehea_update_firmware_handles(); |
21eee2dd | 2486 | |
7a291083 JBT |
2487 | return ret; |
2488 | } | |
2489 | ||
2490 | static int ehea_stop(struct net_device *dev) | |
2491 | { | |
2492 | int ret; | |
2493 | struct ehea_port *port = netdev_priv(dev); | |
2494 | ||
8c4877a4 | 2495 | netif_info(port, ifdown, dev, "disabling port\n"); |
7a291083 | 2496 | |
2f69ae01 | 2497 | set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
4bb073c0 | 2498 | cancel_work_sync(&port->reset_task); |
2aefcad8 | 2499 | cancel_delayed_work_sync(&port->stats_work); |
a5af6ad3 | 2500 | mutex_lock(&port->port_lock); |
b9564468 | 2501 | netif_tx_stop_all_queues(dev); |
0173b793 | 2502 | port_napi_disable(port); |
7a291083 | 2503 | ret = ehea_down(dev); |
a5af6ad3 | 2504 | mutex_unlock(&port->port_lock); |
2f69ae01 | 2505 | clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
7a291083 JBT |
2506 | return ret; |
2507 | } | |
2508 | ||
22559c5d | 2509 | static void ehea_purge_sq(struct ehea_qp *orig_qp) |
2c69448b JBT |
2510 | { |
2511 | struct ehea_qp qp = *orig_qp; | |
2512 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2513 | struct ehea_swqe *swqe; | |
2514 | int wqe_index; | |
2515 | int i; | |
2516 | ||
2517 | for (i = 0; i < init_attr->act_nr_send_wqes; i++) { | |
2518 | swqe = ehea_get_swqe(&qp, &wqe_index); | |
2519 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2520 | } | |
2521 | } | |
2522 | ||
22559c5d | 2523 | static void ehea_flush_sq(struct ehea_port *port) |
44fb3126 TK |
2524 | { |
2525 | int i; | |
2526 | ||
723f28e4 | 2527 | for (i = 0; i < port->num_def_qps; i++) { |
44fb3126 TK |
2528 | struct ehea_port_res *pr = &port->port_res[i]; |
2529 | int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count; | |
5b27d427 BL |
2530 | int ret; |
2531 | ||
2532 | ret = wait_event_timeout(port->swqe_avail_wq, | |
2533 | atomic_read(&pr->swqe_avail) >= swqe_max, | |
2534 | msecs_to_jiffies(100)); | |
2535 | ||
2536 | if (!ret) { | |
8c4877a4 | 2537 | pr_err("WARNING: sq not flushed completely\n"); |
5b27d427 | 2538 | break; |
44fb3126 TK |
2539 | } |
2540 | } | |
2541 | } | |
2542 | ||
1886e5d2 | 2543 | static int ehea_stop_qps(struct net_device *dev) |
2c69448b JBT |
2544 | { |
2545 | struct ehea_port *port = netdev_priv(dev); | |
2546 | struct ehea_adapter *adapter = port->adapter; | |
508d2b5d | 2547 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2548 | int ret = -EIO; |
2549 | int dret; | |
2550 | int i; | |
2551 | u64 hret; | |
2552 | u64 dummy64 = 0; | |
2553 | u16 dummy16 = 0; | |
2554 | ||
3faf2693 | 2555 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2556 | if (!cb0) { |
2557 | ret = -ENOMEM; | |
2558 | goto out; | |
2559 | } | |
2560 | ||
723f28e4 | 2561 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2562 | struct ehea_port_res *pr = &port->port_res[i]; |
2563 | struct ehea_qp *qp = pr->qp; | |
2564 | ||
2565 | /* Purge send queue */ | |
2566 | ehea_purge_sq(qp); | |
2567 | ||
2568 | /* Disable queue pair */ | |
2569 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2570 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2571 | cb0); | |
2572 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2573 | pr_err("query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2574 | goto out; |
2575 | } | |
2576 | ||
2577 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2578 | cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED; | |
2579 | ||
2580 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2581 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2582 | 1), cb0, &dummy64, | |
2583 | &dummy64, &dummy16, &dummy16); | |
2584 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2585 | pr_err("modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2586 | goto out; |
2587 | } | |
2588 | ||
2589 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2590 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2591 | cb0); | |
2592 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2593 | pr_err("query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2594 | goto out; |
2595 | } | |
2596 | ||
2597 | /* deregister shared memory regions */ | |
2598 | dret = ehea_rem_smrs(pr); | |
2599 | if (dret) { | |
8c4877a4 | 2600 | pr_err("unreg shared memory region failed\n"); |
2c69448b JBT |
2601 | goto out; |
2602 | } | |
2603 | } | |
2604 | ||
2605 | ret = 0; | |
2606 | out: | |
3faf2693 | 2607 | free_page((unsigned long)cb0); |
2c69448b JBT |
2608 | |
2609 | return ret; | |
2610 | } | |
2611 | ||
1886e5d2 | 2612 | static void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr) |
2c69448b JBT |
2613 | { |
2614 | struct ehea_qp qp = *orig_qp; | |
2615 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2616 | struct ehea_rwqe *rwqe; | |
2617 | struct sk_buff **skba_rq2 = pr->rq2_skba.arr; | |
2618 | struct sk_buff **skba_rq3 = pr->rq3_skba.arr; | |
2619 | struct sk_buff *skb; | |
2620 | u32 lkey = pr->recv_mr.lkey; | |
2621 | ||
2622 | ||
2623 | int i; | |
2624 | int index; | |
2625 | ||
2626 | for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) { | |
2627 | rwqe = ehea_get_next_rwqe(&qp, 2); | |
2628 | rwqe->sg_list[0].l_key = lkey; | |
2629 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2630 | skb = skba_rq2[index]; | |
2631 | if (skb) | |
2632 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2633 | } | |
2634 | ||
2635 | for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) { | |
2636 | rwqe = ehea_get_next_rwqe(&qp, 3); | |
2637 | rwqe->sg_list[0].l_key = lkey; | |
2638 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2639 | skb = skba_rq3[index]; | |
2640 | if (skb) | |
2641 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2642 | } | |
2643 | } | |
2644 | ||
1886e5d2 | 2645 | static int ehea_restart_qps(struct net_device *dev) |
2c69448b JBT |
2646 | { |
2647 | struct ehea_port *port = netdev_priv(dev); | |
2648 | struct ehea_adapter *adapter = port->adapter; | |
2649 | int ret = 0; | |
2650 | int i; | |
2651 | ||
508d2b5d | 2652 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2653 | u64 hret; |
2654 | u64 dummy64 = 0; | |
2655 | u16 dummy16 = 0; | |
2656 | ||
3faf2693 | 2657 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2658 | if (!cb0) { |
2659 | ret = -ENOMEM; | |
2660 | goto out; | |
2661 | } | |
2662 | ||
723f28e4 | 2663 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2664 | struct ehea_port_res *pr = &port->port_res[i]; |
2665 | struct ehea_qp *qp = pr->qp; | |
2666 | ||
2667 | ret = ehea_gen_smrs(pr); | |
2668 | if (ret) { | |
8c4877a4 | 2669 | netdev_err(dev, "creation of shared memory regions failed\n"); |
2c69448b JBT |
2670 | goto out; |
2671 | } | |
2672 | ||
2673 | ehea_update_rqs(qp, pr); | |
2674 | ||
2675 | /* Enable queue pair */ | |
2676 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2677 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2678 | cb0); | |
2679 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2680 | netdev_err(dev, "query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2681 | goto out; |
2682 | } | |
2683 | ||
2684 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2685 | cb0->qp_ctl_reg |= H_QP_CR_ENABLED; | |
2686 | ||
2687 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2688 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2689 | 1), cb0, &dummy64, | |
2690 | &dummy64, &dummy16, &dummy16); | |
2691 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2692 | netdev_err(dev, "modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2693 | goto out; |
2694 | } | |
2695 | ||
2696 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2697 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2698 | cb0); | |
2699 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2700 | netdev_err(dev, "query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2701 | goto out; |
2702 | } | |
2703 | ||
2704 | /* refill entire queue */ | |
2705 | ehea_refill_rq1(pr, pr->rq1_skba.index, 0); | |
2706 | ehea_refill_rq2(pr, 0); | |
2707 | ehea_refill_rq3(pr, 0); | |
2708 | } | |
2709 | out: | |
3faf2693 | 2710 | free_page((unsigned long)cb0); |
2c69448b JBT |
2711 | |
2712 | return ret; | |
2713 | } | |
2714 | ||
c4028958 | 2715 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2716 | { |
2717 | int ret; | |
c4028958 DH |
2718 | struct ehea_port *port = |
2719 | container_of(work, struct ehea_port, reset_task); | |
2720 | struct net_device *dev = port->netdev; | |
7a291083 | 2721 | |
099473c1 | 2722 | mutex_lock(&dlpar_mem_lock); |
7a291083 | 2723 | port->resets++; |
a5af6ad3 | 2724 | mutex_lock(&port->port_lock); |
b9564468 | 2725 | netif_tx_disable(dev); |
bea3348e SH |
2726 | |
2727 | port_napi_disable(port); | |
7a291083 | 2728 | |
44c82152 | 2729 | ehea_down(dev); |
7a291083 JBT |
2730 | |
2731 | ret = ehea_up(dev); | |
44c82152 | 2732 | if (ret) |
7a291083 | 2733 | goto out; |
7a291083 | 2734 | |
2c69448b JBT |
2735 | ehea_set_multicast_list(dev); |
2736 | ||
8c4877a4 | 2737 | netif_info(port, timer, dev, "reset successful\n"); |
7a291083 | 2738 | |
bea3348e SH |
2739 | port_napi_enable(port); |
2740 | ||
b9564468 | 2741 | netif_tx_wake_all_queues(dev); |
7a291083 | 2742 | out: |
a5af6ad3 | 2743 | mutex_unlock(&port->port_lock); |
099473c1 | 2744 | mutex_unlock(&dlpar_mem_lock); |
7a291083 JBT |
2745 | } |
2746 | ||
3d6b892b | 2747 | static void ehea_rereg_mrs(void) |
44c82152 TK |
2748 | { |
2749 | int ret, i; | |
2750 | struct ehea_adapter *adapter; | |
2751 | ||
8c4877a4 | 2752 | pr_info("LPAR memory changed - re-initializing driver\n"); |
44c82152 TK |
2753 | |
2754 | list_for_each_entry(adapter, &adapter_list, list) | |
2755 | if (adapter->active_ports) { | |
2756 | /* Shutdown all ports */ | |
2757 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2758 | struct ehea_port *port = adapter->port[i]; | |
a5af6ad3 | 2759 | struct net_device *dev; |
44c82152 | 2760 | |
a5af6ad3 DW |
2761 | if (!port) |
2762 | continue; | |
44c82152 | 2763 | |
a5af6ad3 DW |
2764 | dev = port->netdev; |
2765 | ||
2766 | if (dev->flags & IFF_UP) { | |
2767 | mutex_lock(&port->port_lock); | |
b9564468 | 2768 | netif_tx_disable(dev); |
df39e8ba | 2769 | ehea_flush_sq(port); |
a5af6ad3 DW |
2770 | ret = ehea_stop_qps(dev); |
2771 | if (ret) { | |
2772 | mutex_unlock(&port->port_lock); | |
2773 | goto out; | |
44c82152 | 2774 | } |
a5af6ad3 DW |
2775 | port_napi_disable(port); |
2776 | mutex_unlock(&port->port_lock); | |
44c82152 | 2777 | } |
2928db4c | 2778 | reset_sq_restart_flag(port); |
44c82152 TK |
2779 | } |
2780 | ||
2781 | /* Unregister old memory region */ | |
2782 | ret = ehea_rem_mr(&adapter->mr); | |
2783 | if (ret) { | |
8c4877a4 | 2784 | pr_err("unregister MR failed - driver inoperable!\n"); |
44c82152 TK |
2785 | goto out; |
2786 | } | |
2787 | } | |
2788 | ||
44c82152 TK |
2789 | clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
2790 | ||
2791 | list_for_each_entry(adapter, &adapter_list, list) | |
2792 | if (adapter->active_ports) { | |
2793 | /* Register new memory region */ | |
2794 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2795 | if (ret) { | |
8c4877a4 | 2796 | pr_err("register MR failed - driver inoperable!\n"); |
44c82152 TK |
2797 | goto out; |
2798 | } | |
2799 | ||
2800 | /* Restart all ports */ | |
2801 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2802 | struct ehea_port *port = adapter->port[i]; | |
2803 | ||
2804 | if (port) { | |
2805 | struct net_device *dev = port->netdev; | |
2806 | ||
2807 | if (dev->flags & IFF_UP) { | |
a5af6ad3 | 2808 | mutex_lock(&port->port_lock); |
2c69448b | 2809 | ret = ehea_restart_qps(dev); |
6f4d6dc1 BL |
2810 | if (!ret) { |
2811 | check_sqs(port); | |
2812 | port_napi_enable(port); | |
b9564468 | 2813 | netif_tx_wake_all_queues(dev); |
6f4d6dc1 BL |
2814 | } else { |
2815 | netdev_err(dev, "Unable to restart QPS\n"); | |
2816 | } | |
a5af6ad3 | 2817 | mutex_unlock(&port->port_lock); |
44c82152 TK |
2818 | } |
2819 | } | |
2820 | } | |
2821 | } | |
8c4877a4 | 2822 | pr_info("re-initializing driver complete\n"); |
44c82152 TK |
2823 | out: |
2824 | return; | |
2825 | } | |
2826 | ||
7a291083 JBT |
2827 | static void ehea_tx_watchdog(struct net_device *dev) |
2828 | { | |
2829 | struct ehea_port *port = netdev_priv(dev); | |
2830 | ||
2c69448b JBT |
2831 | if (netif_carrier_ok(dev) && |
2832 | !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) | |
2f69ae01 | 2833 | ehea_schedule_port_reset(port); |
7a291083 JBT |
2834 | } |
2835 | ||
1886e5d2 | 2836 | static int ehea_sense_adapter_attr(struct ehea_adapter *adapter) |
7a291083 JBT |
2837 | { |
2838 | struct hcp_query_ehea *cb; | |
2839 | u64 hret; | |
2840 | int ret; | |
2841 | ||
3faf2693 | 2842 | cb = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2843 | if (!cb) { |
2844 | ret = -ENOMEM; | |
2845 | goto out; | |
2846 | } | |
2847 | ||
2848 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
2849 | ||
2850 | if (hret != H_SUCCESS) { | |
2851 | ret = -EIO; | |
2852 | goto out_herr; | |
2853 | } | |
2854 | ||
7a291083 JBT |
2855 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
2856 | ret = 0; | |
2857 | ||
2858 | out_herr: | |
3faf2693 | 2859 | free_page((unsigned long)cb); |
7a291083 JBT |
2860 | out: |
2861 | return ret; | |
2862 | } | |
2863 | ||
1886e5d2 | 2864 | static int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 2865 | { |
7a291083 | 2866 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
2867 | u64 hret; |
2868 | int ret = 0; | |
7a291083 | 2869 | |
1acf2318 | 2870 | *jumbo = 0; |
7a291083 | 2871 | |
1acf2318 | 2872 | /* (Try to) enable *jumbo frames */ |
3faf2693 | 2873 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2874 | if (!cb4) { |
8c4877a4 | 2875 | pr_err("no mem for cb4\n"); |
1acf2318 JBT |
2876 | ret = -ENOMEM; |
2877 | goto out; | |
7a291083 | 2878 | } else { |
1acf2318 | 2879 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
2880 | port->logical_port_id, |
2881 | H_PORT_CB4, | |
2882 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
2883 | if (hret == H_SUCCESS) { |
2884 | if (cb4->jumbo_frame) | |
1acf2318 | 2885 | *jumbo = 1; |
9c750b7d TK |
2886 | else { |
2887 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
2888 | hret = ehea_h_modify_ehea_port(port->adapter-> |
2889 | handle, | |
9c750b7d | 2890 | port-> |
1acf2318 | 2891 | logical_port_id, |
9c750b7d TK |
2892 | H_PORT_CB4, |
2893 | H_PORT_CB4_JUMBO, | |
2894 | cb4); | |
2895 | if (hret == H_SUCCESS) | |
1acf2318 | 2896 | *jumbo = 1; |
9c750b7d | 2897 | } |
1acf2318 JBT |
2898 | } else |
2899 | ret = -EINVAL; | |
2900 | ||
3faf2693 | 2901 | free_page((unsigned long)cb4); |
7a291083 | 2902 | } |
1acf2318 JBT |
2903 | out: |
2904 | return ret; | |
2905 | } | |
2906 | ||
2907 | static ssize_t ehea_show_port_id(struct device *dev, | |
2908 | struct device_attribute *attr, char *buf) | |
2909 | { | |
2910 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
a8e34fda | 2911 | return sprintf(buf, "%d", port->logical_port_id); |
1acf2318 JBT |
2912 | } |
2913 | ||
2914 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
2915 | NULL); | |
2916 | ||
0297be07 | 2917 | static void logical_port_release(struct device *dev) |
1acf2318 JBT |
2918 | { |
2919 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
61c7a080 | 2920 | of_node_put(port->ofdev.dev.of_node); |
1acf2318 JBT |
2921 | } |
2922 | ||
2923 | static struct device *ehea_register_port(struct ehea_port *port, | |
2924 | struct device_node *dn) | |
2925 | { | |
2926 | int ret; | |
2927 | ||
61c7a080 | 2928 | port->ofdev.dev.of_node = of_node_get(dn); |
6b08f3ae | 2929 | port->ofdev.dev.parent = &port->adapter->ofdev->dev; |
d1dea38d | 2930 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 2931 | |
db1d7bf7 | 2932 | dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++); |
1acf2318 JBT |
2933 | port->ofdev.dev.release = logical_port_release; |
2934 | ||
2935 | ret = of_device_register(&port->ofdev); | |
2936 | if (ret) { | |
8c4877a4 | 2937 | pr_err("failed to register device. ret=%d\n", ret); |
1acf2318 JBT |
2938 | goto out; |
2939 | } | |
2940 | ||
2941 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
d1d25aab | 2942 | if (ret) { |
8c4877a4 | 2943 | pr_err("failed to register attributes, ret=%d\n", ret); |
1acf2318 JBT |
2944 | goto out_unreg_of_dev; |
2945 | } | |
e542aa6b | 2946 | |
1acf2318 JBT |
2947 | return &port->ofdev.dev; |
2948 | ||
2949 | out_unreg_of_dev: | |
2950 | of_device_unregister(&port->ofdev); | |
2951 | out: | |
2952 | return NULL; | |
2953 | } | |
2954 | ||
2955 | static void ehea_unregister_port(struct ehea_port *port) | |
2956 | { | |
2957 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
2958 | of_device_unregister(&port->ofdev); | |
2959 | } | |
2960 | ||
086c1b2c TK |
2961 | static const struct net_device_ops ehea_netdev_ops = { |
2962 | .ndo_open = ehea_open, | |
2963 | .ndo_stop = ehea_stop, | |
2964 | .ndo_start_xmit = ehea_start_xmit, | |
2965 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2966 | .ndo_poll_controller = ehea_netpoll, | |
2967 | #endif | |
239c562c | 2968 | .ndo_get_stats64 = ehea_get_stats64, |
086c1b2c | 2969 | .ndo_set_mac_address = ehea_set_mac_addr, |
240c102d | 2970 | .ndo_validate_addr = eth_validate_addr, |
afc4b13d | 2971 | .ndo_set_rx_mode = ehea_set_multicast_list, |
086c1b2c | 2972 | .ndo_change_mtu = ehea_change_mtu, |
086c1b2c | 2973 | .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid, |
32e8f9a8 AB |
2974 | .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid, |
2975 | .ndo_tx_timeout = ehea_tx_watchdog, | |
086c1b2c TK |
2976 | }; |
2977 | ||
1886e5d2 | 2978 | static struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, |
1acf2318 JBT |
2979 | u32 logical_port_id, |
2980 | struct device_node *dn) | |
2981 | { | |
2982 | int ret; | |
2983 | struct net_device *dev; | |
2984 | struct ehea_port *port; | |
2985 | struct device *port_dev; | |
2986 | int jumbo; | |
2987 | ||
2988 | /* allocate memory for the port structures */ | |
b9564468 | 2989 | dev = alloc_etherdev_mq(sizeof(struct ehea_port), EHEA_MAX_PORT_RES); |
1acf2318 JBT |
2990 | |
2991 | if (!dev) { | |
1acf2318 JBT |
2992 | ret = -ENOMEM; |
2993 | goto out_err; | |
2994 | } | |
2995 | ||
2996 | port = netdev_priv(dev); | |
2997 | ||
a5af6ad3 | 2998 | mutex_init(&port->port_lock); |
1acf2318 JBT |
2999 | port->state = EHEA_PORT_DOWN; |
3000 | port->sig_comp_iv = sq_entries / 10; | |
3001 | ||
3002 | port->adapter = adapter; | |
3003 | port->netdev = dev; | |
3004 | port->logical_port_id = logical_port_id; | |
3005 | ||
3006 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
3007 | ||
3008 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
3009 | if (!port->mc_list) { | |
3010 | ret = -ENOMEM; | |
3011 | goto out_free_ethdev; | |
3012 | } | |
3013 | ||
3014 | INIT_LIST_HEAD(&port->mc_list->list); | |
3015 | ||
3016 | ret = ehea_sense_port_attr(port); | |
3017 | if (ret) | |
3018 | goto out_free_mc_list; | |
3019 | ||
b9564468 | 3020 | netif_set_real_num_rx_queues(dev, port->num_def_qps); |
723f28e4 | 3021 | netif_set_real_num_tx_queues(dev, port->num_def_qps); |
b9564468 | 3022 | |
1acf2318 JBT |
3023 | port_dev = ehea_register_port(port, dn); |
3024 | if (!port_dev) | |
3025 | goto out_free_mc_list; | |
3026 | ||
3027 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
3028 | |
3029 | /* initialize net_device structure */ | |
7a291083 JBT |
3030 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); |
3031 | ||
086c1b2c TK |
3032 | dev->netdev_ops = &ehea_netdev_ops; |
3033 | ehea_set_ethtool_ops(dev); | |
3034 | ||
55fbbe46 DM |
3035 | dev->hw_features = NETIF_F_SG | NETIF_F_TSO | |
3036 | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_CTAG_TX; | |
28e24c62 | 3037 | dev->features = NETIF_F_SG | NETIF_F_TSO | |
55fbbe46 DM |
3038 | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | |
3039 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | | |
3040 | NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXCSUM; | |
076f2032 AB |
3041 | dev->vlan_features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HIGHDMA | |
3042 | NETIF_F_IP_CSUM; | |
7a291083 JBT |
3043 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; |
3044 | ||
c4028958 | 3045 | INIT_WORK(&port->reset_task, ehea_reset_port); |
2aefcad8 | 3046 | INIT_DELAYED_WORK(&port->stats_work, ehea_update_stats); |
7a291083 | 3047 | |
21ccc793 AB |
3048 | init_waitqueue_head(&port->swqe_avail_wq); |
3049 | init_waitqueue_head(&port->restart_wq); | |
3050 | ||
2aefcad8 | 3051 | memset(&port->stats, 0, sizeof(struct net_device_stats)); |
7a291083 JBT |
3052 | ret = register_netdev(dev); |
3053 | if (ret) { | |
8c4877a4 | 3054 | pr_err("register_netdev failed. ret=%d\n", ret); |
21eee2dd | 3055 | goto out_unreg_port; |
7a291083 JBT |
3056 | } |
3057 | ||
1acf2318 | 3058 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 3059 | if (ret) |
8c4877a4 | 3060 | netdev_err(dev, "failed determining jumbo frame status\n"); |
1acf2318 | 3061 | |
8c4877a4 JP |
3062 | netdev_info(dev, "Jumbo frames are %sabled\n", |
3063 | jumbo == 1 ? "en" : "dis"); | |
9c750b7d | 3064 | |
44c82152 TK |
3065 | adapter->active_ports++; |
3066 | ||
1acf2318 | 3067 | return port; |
7a291083 | 3068 | |
1acf2318 JBT |
3069 | out_unreg_port: |
3070 | ehea_unregister_port(port); | |
3071 | ||
3072 | out_free_mc_list: | |
7a291083 | 3073 | kfree(port->mc_list); |
1acf2318 JBT |
3074 | |
3075 | out_free_ethdev: | |
3076 | free_netdev(dev); | |
3077 | ||
3078 | out_err: | |
8c4877a4 JP |
3079 | pr_err("setting up logical port with id=%d failed, ret=%d\n", |
3080 | logical_port_id, ret); | |
1acf2318 JBT |
3081 | return NULL; |
3082 | } | |
3083 | ||
3084 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
3085 | { | |
7fb1c2ac | 3086 | struct ehea_adapter *adapter = port->adapter; |
f5c35cc1 TH |
3087 | |
3088 | cancel_work_sync(&port->reset_task); | |
2aefcad8 | 3089 | cancel_delayed_work_sync(&port->stats_work); |
1acf2318 JBT |
3090 | unregister_netdev(port->netdev); |
3091 | ehea_unregister_port(port); | |
3092 | kfree(port->mc_list); | |
3093 | free_netdev(port->netdev); | |
7fb1c2ac | 3094 | adapter->active_ports--; |
7a291083 JBT |
3095 | } |
3096 | ||
3097 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
3098 | { | |
1acf2318 JBT |
3099 | struct device_node *lhea_dn; |
3100 | struct device_node *eth_dn = NULL; | |
d1d25aab | 3101 | |
9f9a3b8a | 3102 | const u32 *dn_log_port_id; |
1acf2318 JBT |
3103 | int i = 0; |
3104 | ||
61c7a080 | 3105 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3106 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3107 | |
40cd3a45 | 3108 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3109 | NULL); |
1acf2318 | 3110 | if (!dn_log_port_id) { |
8c4877a4 JP |
3111 | pr_err("bad device node: eth_dn name=%s\n", |
3112 | eth_dn->full_name); | |
1acf2318 JBT |
3113 | continue; |
3114 | } | |
7a291083 | 3115 | |
1211bb6d | 3116 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3117 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3118 | of_node_put(eth_dn); |
3119 | return -EIO; | |
3120 | } | |
3121 | ||
1acf2318 JBT |
3122 | adapter->port[i] = ehea_setup_single_port(adapter, |
3123 | *dn_log_port_id, | |
3124 | eth_dn); | |
7a291083 | 3125 | if (adapter->port[i]) |
8c4877a4 JP |
3126 | netdev_info(adapter->port[i]->netdev, |
3127 | "logical port id #%d\n", *dn_log_port_id); | |
1211bb6d TK |
3128 | else |
3129 | ehea_remove_adapter_mr(adapter); | |
3130 | ||
1acf2318 | 3131 | i++; |
ee289b64 | 3132 | } |
1211bb6d | 3133 | return 0; |
1acf2318 JBT |
3134 | } |
3135 | ||
e542aa6b JBT |
3136 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
3137 | u32 logical_port_id) | |
1acf2318 JBT |
3138 | { |
3139 | struct device_node *lhea_dn; | |
3140 | struct device_node *eth_dn = NULL; | |
9f9a3b8a | 3141 | const u32 *dn_log_port_id; |
1acf2318 | 3142 | |
61c7a080 | 3143 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3144 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3145 | |
40cd3a45 | 3146 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3147 | NULL); |
1acf2318 JBT |
3148 | if (dn_log_port_id) |
3149 | if (*dn_log_port_id == logical_port_id) | |
3150 | return eth_dn; | |
ee289b64 | 3151 | } |
1acf2318 JBT |
3152 | |
3153 | return NULL; | |
3154 | } | |
3155 | ||
3156 | static ssize_t ehea_probe_port(struct device *dev, | |
3157 | struct device_attribute *attr, | |
3158 | const char *buf, size_t count) | |
3159 | { | |
c7ae011d | 3160 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3161 | struct ehea_port *port; |
3162 | struct device_node *eth_dn = NULL; | |
3163 | int i; | |
3164 | ||
3165 | u32 logical_port_id; | |
3166 | ||
a8e34fda | 3167 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3168 | |
3169 | port = ehea_get_port(adapter, logical_port_id); | |
3170 | ||
3171 | if (port) { | |
8c4877a4 JP |
3172 | netdev_info(port->netdev, "adding port with logical port id=%d failed: port already configured\n", |
3173 | logical_port_id); | |
1acf2318 | 3174 | return -EINVAL; |
7a291083 | 3175 | } |
e542aa6b | 3176 | |
1acf2318 | 3177 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 3178 | |
1acf2318 | 3179 | if (!eth_dn) { |
8c4877a4 | 3180 | pr_info("no logical port with id %d found\n", logical_port_id); |
1acf2318 JBT |
3181 | return -EINVAL; |
3182 | } | |
e542aa6b | 3183 | |
1211bb6d | 3184 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3185 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3186 | return -EIO; |
3187 | } | |
3188 | ||
1acf2318 | 3189 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 3190 | |
1eef4e04 JBT |
3191 | of_node_put(eth_dn); |
3192 | ||
1acf2318 | 3193 | if (port) { |
508d2b5d | 3194 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3195 | if (!adapter->port[i]) { |
3196 | adapter->port[i] = port; | |
3197 | break; | |
3198 | } | |
7a291083 | 3199 | |
8c4877a4 JP |
3200 | netdev_info(port->netdev, "added: (logical port id=%d)\n", |
3201 | logical_port_id); | |
1211bb6d TK |
3202 | } else { |
3203 | ehea_remove_adapter_mr(adapter); | |
e542aa6b | 3204 | return -EIO; |
1211bb6d | 3205 | } |
7a291083 | 3206 | |
1acf2318 JBT |
3207 | return (ssize_t) count; |
3208 | } | |
3209 | ||
3210 | static ssize_t ehea_remove_port(struct device *dev, | |
3211 | struct device_attribute *attr, | |
3212 | const char *buf, size_t count) | |
3213 | { | |
c7ae011d | 3214 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3215 | struct ehea_port *port; |
3216 | int i; | |
3217 | u32 logical_port_id; | |
3218 | ||
a8e34fda | 3219 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3220 | |
3221 | port = ehea_get_port(adapter, logical_port_id); | |
3222 | ||
3223 | if (port) { | |
8c4877a4 JP |
3224 | netdev_info(port->netdev, "removed: (logical port id=%d)\n", |
3225 | logical_port_id); | |
1acf2318 JBT |
3226 | |
3227 | ehea_shutdown_single_port(port); | |
3228 | ||
508d2b5d | 3229 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3230 | if (adapter->port[i] == port) { |
3231 | adapter->port[i] = NULL; | |
3232 | break; | |
3233 | } | |
3234 | } else { | |
8c4877a4 JP |
3235 | pr_err("removing port with logical port id=%d failed. port not configured.\n", |
3236 | logical_port_id); | |
1acf2318 JBT |
3237 | return -EINVAL; |
3238 | } | |
3239 | ||
1211bb6d TK |
3240 | ehea_remove_adapter_mr(adapter); |
3241 | ||
1acf2318 JBT |
3242 | return (ssize_t) count; |
3243 | } | |
3244 | ||
3245 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
3246 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
3247 | ||
1886e5d2 | 3248 | static int ehea_create_device_sysfs(struct platform_device *dev) |
1acf2318 | 3249 | { |
6b08f3ae | 3250 | int ret = device_create_file(&dev->dev, &dev_attr_probe_port); |
1acf2318 JBT |
3251 | if (ret) |
3252 | goto out; | |
3253 | ||
6b08f3ae | 3254 | ret = device_create_file(&dev->dev, &dev_attr_remove_port); |
1acf2318 | 3255 | out: |
7a291083 JBT |
3256 | return ret; |
3257 | } | |
3258 | ||
1886e5d2 | 3259 | static void ehea_remove_device_sysfs(struct platform_device *dev) |
1acf2318 | 3260 | { |
6b08f3ae JF |
3261 | device_remove_file(&dev->dev, &dev_attr_probe_port); |
3262 | device_remove_file(&dev->dev, &dev_attr_remove_port); | |
1acf2318 JBT |
3263 | } |
3264 | ||
c45640e4 | 3265 | static int ehea_probe_adapter(struct platform_device *dev) |
7a291083 JBT |
3266 | { |
3267 | struct ehea_adapter *adapter; | |
9f9a3b8a | 3268 | const u64 *adapter_handle; |
7a291083 | 3269 | int ret; |
c2f1244b | 3270 | int i; |
7a291083 | 3271 | |
61c7a080 | 3272 | if (!dev || !dev->dev.of_node) { |
8c4877a4 | 3273 | pr_err("Invalid ibmebus device probed\n"); |
1eef4e04 JBT |
3274 | return -EINVAL; |
3275 | } | |
3276 | ||
09b38aa1 | 3277 | adapter = devm_kzalloc(&dev->dev, sizeof(*adapter), GFP_KERNEL); |
7a291083 JBT |
3278 | if (!adapter) { |
3279 | ret = -ENOMEM; | |
6b08f3ae | 3280 | dev_err(&dev->dev, "no mem for ehea_adapter\n"); |
7a291083 JBT |
3281 | goto out; |
3282 | } | |
3283 | ||
44c82152 TK |
3284 | list_add(&adapter->list, &adapter_list); |
3285 | ||
6b08f3ae | 3286 | adapter->ofdev = dev; |
1acf2318 | 3287 | |
61c7a080 | 3288 | adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle", |
d1d25aab | 3289 | NULL); |
061bf3cd TK |
3290 | if (adapter_handle) |
3291 | adapter->handle = *adapter_handle; | |
3292 | ||
3293 | if (!adapter->handle) { | |
6b08f3ae | 3294 | dev_err(&dev->dev, "failed getting handle for adapter" |
61c7a080 | 3295 | " '%s'\n", dev->dev.of_node->full_name); |
7a291083 JBT |
3296 | ret = -ENODEV; |
3297 | goto out_free_ad; | |
3298 | } | |
3299 | ||
7a291083 JBT |
3300 | adapter->pd = EHEA_PD_ID; |
3301 | ||
8513fbd8 | 3302 | platform_set_drvdata(dev, adapter); |
7a291083 | 3303 | |
7a291083 JBT |
3304 | |
3305 | /* initialize adapter and ports */ | |
3306 | /* get adapter properties */ | |
3307 | ret = ehea_sense_adapter_attr(adapter); | |
3308 | if (ret) { | |
898eb71c | 3309 | dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret); |
1211bb6d | 3310 | goto out_free_ad; |
7a291083 | 3311 | } |
7a291083 JBT |
3312 | |
3313 | adapter->neq = ehea_create_eq(adapter, | |
3314 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
3315 | if (!adapter->neq) { | |
1eef4e04 | 3316 | ret = -EIO; |
898eb71c | 3317 | dev_err(&dev->dev, "NEQ creation failed\n"); |
1211bb6d | 3318 | goto out_free_ad; |
7a291083 JBT |
3319 | } |
3320 | ||
3321 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
3322 | (unsigned long)adapter); | |
3323 | ||
1eef4e04 JBT |
3324 | ret = ehea_create_device_sysfs(dev); |
3325 | if (ret) | |
c2f1244b | 3326 | goto out_kill_eq; |
1acf2318 | 3327 | |
7a291083 JBT |
3328 | ret = ehea_setup_ports(adapter); |
3329 | if (ret) { | |
898eb71c | 3330 | dev_err(&dev->dev, "setup_ports failed\n"); |
1acf2318 | 3331 | goto out_rem_dev_sysfs; |
7a291083 JBT |
3332 | } |
3333 | ||
c2f1244b | 3334 | ret = ibmebus_request_irq(adapter->neq->attr.ist1, |
46c915f8 | 3335 | ehea_interrupt_neq, 0, |
c2f1244b TLSC |
3336 | "ehea_neq", adapter); |
3337 | if (ret) { | |
3338 | dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); | |
3339 | goto out_shutdown_ports; | |
3340 | } | |
3341 | ||
380ec964 TLSC |
3342 | /* Handle any events that might be pending. */ |
3343 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
c2f1244b | 3344 | |
7a291083 JBT |
3345 | ret = 0; |
3346 | goto out; | |
3347 | ||
c2f1244b TLSC |
3348 | out_shutdown_ports: |
3349 | for (i = 0; i < EHEA_MAX_PORTS; i++) | |
3350 | if (adapter->port[i]) { | |
3351 | ehea_shutdown_single_port(adapter->port[i]); | |
3352 | adapter->port[i] = NULL; | |
3353 | } | |
3354 | ||
1acf2318 JBT |
3355 | out_rem_dev_sysfs: |
3356 | ehea_remove_device_sysfs(dev); | |
3357 | ||
7a291083 JBT |
3358 | out_kill_eq: |
3359 | ehea_destroy_eq(adapter->neq); | |
3360 | ||
7a291083 | 3361 | out_free_ad: |
51621fbd | 3362 | list_del(&adapter->list); |
21eee2dd | 3363 | |
7a291083 | 3364 | out: |
21eee2dd | 3365 | ehea_update_firmware_handles(); |
52e21b1b | 3366 | |
7a291083 JBT |
3367 | return ret; |
3368 | } | |
3369 | ||
0297be07 | 3370 | static int ehea_remove(struct platform_device *dev) |
7a291083 | 3371 | { |
8513fbd8 | 3372 | struct ehea_adapter *adapter = platform_get_drvdata(dev); |
7a291083 JBT |
3373 | int i; |
3374 | ||
1acf2318 | 3375 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
7a291083 JBT |
3376 | if (adapter->port[i]) { |
3377 | ehea_shutdown_single_port(adapter->port[i]); | |
3378 | adapter->port[i] = NULL; | |
3379 | } | |
1acf2318 JBT |
3380 | |
3381 | ehea_remove_device_sysfs(dev); | |
3382 | ||
6b08f3ae | 3383 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
d4150a27 | 3384 | tasklet_kill(&adapter->neq_tasklet); |
7a291083 JBT |
3385 | |
3386 | ehea_destroy_eq(adapter->neq); | |
1211bb6d | 3387 | ehea_remove_adapter_mr(adapter); |
44c82152 | 3388 | list_del(&adapter->list); |
44c82152 | 3389 | |
21eee2dd | 3390 | ehea_update_firmware_handles(); |
21eee2dd | 3391 | |
7a291083 JBT |
3392 | return 0; |
3393 | } | |
3394 | ||
1886e5d2 | 3395 | static void ehea_crash_handler(void) |
21eee2dd TK |
3396 | { |
3397 | int i; | |
3398 | ||
3399 | if (ehea_fw_handles.arr) | |
3400 | for (i = 0; i < ehea_fw_handles.num_entries; i++) | |
3401 | ehea_h_free_resource(ehea_fw_handles.arr[i].adh, | |
3402 | ehea_fw_handles.arr[i].fwh, | |
3403 | FORCE_FREE); | |
3404 | ||
3405 | if (ehea_bcmc_regs.arr) | |
3406 | for (i = 0; i < ehea_bcmc_regs.num_entries; i++) | |
3407 | ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh, | |
3408 | ehea_bcmc_regs.arr[i].port_id, | |
3409 | ehea_bcmc_regs.arr[i].reg_type, | |
3410 | ehea_bcmc_regs.arr[i].macaddr, | |
3411 | 0, H_DEREG_BCMC); | |
3412 | } | |
3413 | ||
48cfb14f HH |
3414 | static int ehea_mem_notifier(struct notifier_block *nb, |
3415 | unsigned long action, void *data) | |
3416 | { | |
a7c561f2 | 3417 | int ret = NOTIFY_BAD; |
d4f12daf | 3418 | struct memory_notify *arg = data; |
a7c561f2 | 3419 | |
099473c1 | 3420 | mutex_lock(&dlpar_mem_lock); |
a7c561f2 | 3421 | |
48cfb14f | 3422 | switch (action) { |
d4f12daf | 3423 | case MEM_CANCEL_OFFLINE: |
8c4877a4 | 3424 | pr_info("memory offlining canceled"); |
d4f12daf HH |
3425 | /* Readd canceled memory block */ |
3426 | case MEM_ONLINE: | |
8c4877a4 | 3427 | pr_info("memory is going online"); |
3876732c | 3428 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3429 | if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3430 | goto out_unlock; |
3d6b892b | 3431 | ehea_rereg_mrs(); |
d4f12daf HH |
3432 | break; |
3433 | case MEM_GOING_OFFLINE: | |
8c4877a4 | 3434 | pr_info("memory is going offline"); |
3876732c | 3435 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3436 | if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3437 | goto out_unlock; |
3d6b892b | 3438 | ehea_rereg_mrs(); |
48cfb14f HH |
3439 | break; |
3440 | default: | |
3441 | break; | |
3442 | } | |
52e21b1b JBT |
3443 | |
3444 | ehea_update_firmware_handles(); | |
a7c561f2 | 3445 | ret = NOTIFY_OK; |
52e21b1b | 3446 | |
a7c561f2 TK |
3447 | out_unlock: |
3448 | mutex_unlock(&dlpar_mem_lock); | |
a7c561f2 | 3449 | return ret; |
48cfb14f HH |
3450 | } |
3451 | ||
3452 | static struct notifier_block ehea_mem_nb = { | |
3453 | .notifier_call = ehea_mem_notifier, | |
3454 | }; | |
3455 | ||
2a6f4e49 JBT |
3456 | static int ehea_reboot_notifier(struct notifier_block *nb, |
3457 | unsigned long action, void *unused) | |
3458 | { | |
3459 | if (action == SYS_RESTART) { | |
8c4877a4 | 3460 | pr_info("Reboot: freeing all eHEA resources\n"); |
2a6f4e49 JBT |
3461 | ibmebus_unregister_driver(&ehea_driver); |
3462 | } | |
3463 | return NOTIFY_DONE; | |
3464 | } | |
3465 | ||
3466 | static struct notifier_block ehea_reboot_nb = { | |
508d2b5d | 3467 | .notifier_call = ehea_reboot_notifier, |
2a6f4e49 JBT |
3468 | }; |
3469 | ||
7a291083 JBT |
3470 | static int check_module_parm(void) |
3471 | { | |
3472 | int ret = 0; | |
3473 | ||
3474 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
3475 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
8c4877a4 | 3476 | pr_info("Bad parameter: rq1_entries\n"); |
7a291083 JBT |
3477 | ret = -EINVAL; |
3478 | } | |
3479 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
3480 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
8c4877a4 | 3481 | pr_info("Bad parameter: rq2_entries\n"); |
7a291083 JBT |
3482 | ret = -EINVAL; |
3483 | } | |
3484 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
3485 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
8c4877a4 | 3486 | pr_info("Bad parameter: rq3_entries\n"); |
7a291083 JBT |
3487 | ret = -EINVAL; |
3488 | } | |
3489 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
3490 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
8c4877a4 | 3491 | pr_info("Bad parameter: sq_entries\n"); |
7a291083 JBT |
3492 | ret = -EINVAL; |
3493 | } | |
3494 | ||
3495 | return ret; | |
3496 | } | |
3497 | ||
4c3ca4da JBT |
3498 | static ssize_t ehea_show_capabilities(struct device_driver *drv, |
3499 | char *buf) | |
3500 | { | |
3501 | return sprintf(buf, "%d", EHEA_CAPABILITIES); | |
3502 | } | |
3503 | ||
3504 | static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH, | |
3505 | ehea_show_capabilities, NULL); | |
3506 | ||
1886e5d2 | 3507 | static int __init ehea_module_init(void) |
7a291083 JBT |
3508 | { |
3509 | int ret; | |
3510 | ||
8c4877a4 | 3511 | pr_info("IBM eHEA ethernet device driver (Release %s)\n", DRV_VERSION); |
7a291083 | 3512 | |
21eee2dd TK |
3513 | memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); |
3514 | memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); | |
3515 | ||
9f71a568 | 3516 | mutex_init(&ehea_fw_handles.lock); |
5c2cec14 | 3517 | spin_lock_init(&ehea_bcmc_regs.lock); |
44c82152 | 3518 | |
7a291083 JBT |
3519 | ret = check_module_parm(); |
3520 | if (ret) | |
3521 | goto out; | |
44c82152 TK |
3522 | |
3523 | ret = ehea_create_busmap(); | |
3524 | if (ret) | |
3525 | goto out; | |
3526 | ||
21eee2dd TK |
3527 | ret = register_reboot_notifier(&ehea_reboot_nb); |
3528 | if (ret) | |
8c4877a4 | 3529 | pr_info("failed registering reboot notifier\n"); |
21eee2dd | 3530 | |
48cfb14f HH |
3531 | ret = register_memory_notifier(&ehea_mem_nb); |
3532 | if (ret) | |
8c4877a4 | 3533 | pr_info("failed registering memory remove notifier\n"); |
48cfb14f | 3534 | |
c061b18d | 3535 | ret = crash_shutdown_register(ehea_crash_handler); |
21eee2dd | 3536 | if (ret) |
8c4877a4 | 3537 | pr_info("failed registering crash handler\n"); |
2a6f4e49 | 3538 | |
7a291083 | 3539 | ret = ibmebus_register_driver(&ehea_driver); |
4c3ca4da | 3540 | if (ret) { |
8c4877a4 | 3541 | pr_err("failed registering eHEA device driver on ebus\n"); |
21eee2dd | 3542 | goto out2; |
4c3ca4da JBT |
3543 | } |
3544 | ||
3545 | ret = driver_create_file(&ehea_driver.driver, | |
3546 | &driver_attr_capabilities); | |
3547 | if (ret) { | |
8c4877a4 JP |
3548 | pr_err("failed to register capabilities attribute, ret=%d\n", |
3549 | ret); | |
21eee2dd | 3550 | goto out3; |
4c3ca4da | 3551 | } |
7a291083 | 3552 | |
21eee2dd TK |
3553 | return ret; |
3554 | ||
3555 | out3: | |
3556 | ibmebus_unregister_driver(&ehea_driver); | |
3557 | out2: | |
48cfb14f | 3558 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd | 3559 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3560 | crash_shutdown_unregister(ehea_crash_handler); |
7a291083 JBT |
3561 | out: |
3562 | return ret; | |
3563 | } | |
3564 | ||
3565 | static void __exit ehea_module_exit(void) | |
3566 | { | |
21eee2dd TK |
3567 | int ret; |
3568 | ||
4c3ca4da | 3569 | driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities); |
7a291083 | 3570 | ibmebus_unregister_driver(&ehea_driver); |
2a6f4e49 | 3571 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3572 | ret = crash_shutdown_unregister(ehea_crash_handler); |
21eee2dd | 3573 | if (ret) |
8c4877a4 | 3574 | pr_info("failed unregistering crash handler\n"); |
48cfb14f | 3575 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3576 | kfree(ehea_fw_handles.arr); |
3577 | kfree(ehea_bcmc_regs.arr); | |
44c82152 | 3578 | ehea_destroy_busmap(); |
7a291083 JBT |
3579 | } |
3580 | ||
3581 | module_init(ehea_module_init); | |
3582 | module_exit(ehea_module_exit); |