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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 | ||
7a291083 JBT |
31 | #include <linux/in.h> |
32 | #include <linux/ip.h> | |
33 | #include <linux/tcp.h> | |
34 | #include <linux/udp.h> | |
35 | #include <linux/if.h> | |
36 | #include <linux/list.h> | |
5a0e3ad6 | 37 | #include <linux/slab.h> |
7a291083 | 38 | #include <linux/if_ether.h> |
2a6f4e49 JBT |
39 | #include <linux/notifier.h> |
40 | #include <linux/reboot.h> | |
48cfb14f | 41 | #include <linux/memory.h> |
21eee2dd | 42 | #include <asm/kexec.h> |
06f89edf | 43 | #include <linux/mutex.h> |
268bb0ce | 44 | #include <linux/prefetch.h> |
2a6f4e49 | 45 | |
7a291083 JBT |
46 | #include <net/ip.h> |
47 | ||
48 | #include "ehea.h" | |
49 | #include "ehea_qmr.h" | |
50 | #include "ehea_phyp.h" | |
51 | ||
52 | ||
53 | MODULE_LICENSE("GPL"); | |
54 | MODULE_AUTHOR("Christoph Raisch <raisch@de.ibm.com>"); | |
55 | MODULE_DESCRIPTION("IBM eServer HEA Driver"); | |
56 | MODULE_VERSION(DRV_VERSION); | |
57 | ||
58 | ||
59 | static int msg_level = -1; | |
60 | static int rq1_entries = EHEA_DEF_ENTRIES_RQ1; | |
61 | static int rq2_entries = EHEA_DEF_ENTRIES_RQ2; | |
62 | static int rq3_entries = EHEA_DEF_ENTRIES_RQ3; | |
63 | static int sq_entries = EHEA_DEF_ENTRIES_SQ; | |
b9564468 | 64 | static int use_mcs = 1; |
508d2b5d | 65 | static int prop_carrier_state; |
7a291083 JBT |
66 | |
67 | module_param(msg_level, int, 0); | |
68 | module_param(rq1_entries, int, 0); | |
69 | module_param(rq2_entries, int, 0); | |
70 | module_param(rq3_entries, int, 0); | |
71 | module_param(sq_entries, int, 0); | |
8759cf76 | 72 | module_param(prop_carrier_state, int, 0); |
18604c54 | 73 | module_param(use_mcs, int, 0); |
7a291083 JBT |
74 | |
75 | MODULE_PARM_DESC(msg_level, "msg_level"); | |
8759cf76 JBT |
76 | MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical " |
77 | "port to stack. 1:yes, 0:no. Default = 0 "); | |
7a291083 | 78 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " |
31d17536 | 79 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
80 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); |
81 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
31d17536 | 82 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
83 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); |
84 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
31d17536 | 85 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 JBT |
86 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); |
87 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
31d17536 | 88 | "[2^x - 1], x = [7..14]. Default = " |
7a291083 | 89 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); |
b9564468 AB |
90 | MODULE_PARM_DESC(use_mcs, " Multiple receive queues, 1: enable, 0: disable, " |
91 | "Default = 1"); | |
7a291083 | 92 | |
508d2b5d | 93 | static int port_name_cnt; |
44c82152 | 94 | static LIST_HEAD(adapter_list); |
48e4cc77 | 95 | static unsigned long ehea_driver_flags; |
06f89edf | 96 | static DEFINE_MUTEX(dlpar_mem_lock); |
1886e5d2 TLSC |
97 | static struct ehea_fw_handle_array ehea_fw_handles; |
98 | static struct ehea_bcmc_reg_array ehea_bcmc_regs; | |
21eee2dd | 99 | |
d1dea38d | 100 | |
c45640e4 | 101 | static int ehea_probe_adapter(struct platform_device *dev); |
d1dea38d | 102 | |
0297be07 | 103 | static int ehea_remove(struct platform_device *dev); |
d1dea38d | 104 | |
7a3a6212 OH |
105 | static struct of_device_id ehea_module_device_table[] = { |
106 | { | |
107 | .name = "lhea", | |
108 | .compatible = "IBM,lhea", | |
109 | }, | |
110 | { | |
111 | .type = "network", | |
112 | .compatible = "IBM,lhea-ethernet", | |
113 | }, | |
114 | {}, | |
115 | }; | |
116 | MODULE_DEVICE_TABLE(of, ehea_module_device_table); | |
117 | ||
d1dea38d TK |
118 | static struct of_device_id ehea_device_table[] = { |
119 | { | |
120 | .name = "lhea", | |
121 | .compatible = "IBM,lhea", | |
122 | }, | |
123 | {}, | |
124 | }; | |
125 | ||
c45640e4 | 126 | static struct platform_driver ehea_driver = { |
4018294b GL |
127 | .driver = { |
128 | .name = "ehea", | |
129 | .owner = THIS_MODULE, | |
130 | .of_match_table = ehea_device_table, | |
131 | }, | |
d1dea38d TK |
132 | .probe = ehea_probe_adapter, |
133 | .remove = ehea_remove, | |
134 | }; | |
135 | ||
508d2b5d DM |
136 | void ehea_dump(void *adr, int len, char *msg) |
137 | { | |
7a291083 JBT |
138 | int x; |
139 | unsigned char *deb = adr; | |
140 | for (x = 0; x < len; x += 16) { | |
8c4877a4 JP |
141 | pr_info("%s adr=%p ofs=%04x %016llx %016llx\n", |
142 | msg, deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8])); | |
7a291083 JBT |
143 | deb += 16; |
144 | } | |
145 | } | |
146 | ||
1886e5d2 | 147 | static void ehea_schedule_port_reset(struct ehea_port *port) |
2f69ae01 JBT |
148 | { |
149 | if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) | |
150 | schedule_work(&port->reset_task); | |
151 | } | |
152 | ||
21eee2dd TK |
153 | static void ehea_update_firmware_handles(void) |
154 | { | |
155 | struct ehea_fw_handle_entry *arr = NULL; | |
156 | struct ehea_adapter *adapter; | |
157 | int num_adapters = 0; | |
158 | int num_ports = 0; | |
159 | int num_portres = 0; | |
160 | int i = 0; | |
161 | int num_fw_handles, k, l; | |
162 | ||
163 | /* Determine number of handles */ | |
52e21b1b JBT |
164 | mutex_lock(&ehea_fw_handles.lock); |
165 | ||
21eee2dd TK |
166 | list_for_each_entry(adapter, &adapter_list, list) { |
167 | num_adapters++; | |
168 | ||
169 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
170 | struct ehea_port *port = adapter->port[k]; | |
171 | ||
172 | if (!port || (port->state != EHEA_PORT_UP)) | |
173 | continue; | |
174 | ||
175 | num_ports++; | |
723f28e4 | 176 | num_portres += port->num_def_qps; |
21eee2dd TK |
177 | } |
178 | } | |
179 | ||
180 | num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES + | |
181 | num_ports * EHEA_NUM_PORT_FW_HANDLES + | |
182 | num_portres * EHEA_NUM_PORTRES_FW_HANDLES; | |
183 | ||
184 | if (num_fw_handles) { | |
baeb2ffa | 185 | arr = kcalloc(num_fw_handles, sizeof(*arr), GFP_KERNEL); |
21eee2dd | 186 | if (!arr) |
52e21b1b | 187 | goto out; /* Keep the existing array */ |
21eee2dd TK |
188 | } else |
189 | goto out_update; | |
190 | ||
191 | list_for_each_entry(adapter, &adapter_list, list) { | |
52e21b1b JBT |
192 | if (num_adapters == 0) |
193 | break; | |
194 | ||
21eee2dd TK |
195 | for (k = 0; k < EHEA_MAX_PORTS; k++) { |
196 | struct ehea_port *port = adapter->port[k]; | |
197 | ||
8e95a202 JP |
198 | if (!port || (port->state != EHEA_PORT_UP) || |
199 | (num_ports == 0)) | |
21eee2dd TK |
200 | continue; |
201 | ||
723f28e4 | 202 | for (l = 0; l < port->num_def_qps; l++) { |
21eee2dd TK |
203 | struct ehea_port_res *pr = &port->port_res[l]; |
204 | ||
205 | arr[i].adh = adapter->handle; | |
206 | arr[i++].fwh = pr->qp->fw_handle; | |
207 | arr[i].adh = adapter->handle; | |
208 | arr[i++].fwh = pr->send_cq->fw_handle; | |
209 | arr[i].adh = adapter->handle; | |
210 | arr[i++].fwh = pr->recv_cq->fw_handle; | |
211 | arr[i].adh = adapter->handle; | |
212 | arr[i++].fwh = pr->eq->fw_handle; | |
213 | arr[i].adh = adapter->handle; | |
214 | arr[i++].fwh = pr->send_mr.handle; | |
215 | arr[i].adh = adapter->handle; | |
216 | arr[i++].fwh = pr->recv_mr.handle; | |
217 | } | |
218 | arr[i].adh = adapter->handle; | |
219 | arr[i++].fwh = port->qp_eq->fw_handle; | |
52e21b1b | 220 | num_ports--; |
21eee2dd TK |
221 | } |
222 | ||
223 | arr[i].adh = adapter->handle; | |
224 | arr[i++].fwh = adapter->neq->fw_handle; | |
225 | ||
226 | if (adapter->mr.handle) { | |
227 | arr[i].adh = adapter->handle; | |
228 | arr[i++].fwh = adapter->mr.handle; | |
229 | } | |
52e21b1b | 230 | num_adapters--; |
21eee2dd TK |
231 | } |
232 | ||
233 | out_update: | |
234 | kfree(ehea_fw_handles.arr); | |
235 | ehea_fw_handles.arr = arr; | |
236 | ehea_fw_handles.num_entries = i; | |
52e21b1b JBT |
237 | out: |
238 | mutex_unlock(&ehea_fw_handles.lock); | |
21eee2dd TK |
239 | } |
240 | ||
241 | static void ehea_update_bcmc_registrations(void) | |
242 | { | |
52e21b1b | 243 | unsigned long flags; |
21eee2dd TK |
244 | struct ehea_bcmc_reg_entry *arr = NULL; |
245 | struct ehea_adapter *adapter; | |
246 | struct ehea_mc_list *mc_entry; | |
247 | int num_registrations = 0; | |
248 | int i = 0; | |
249 | int k; | |
250 | ||
52e21b1b JBT |
251 | spin_lock_irqsave(&ehea_bcmc_regs.lock, flags); |
252 | ||
21eee2dd TK |
253 | /* Determine number of registrations */ |
254 | list_for_each_entry(adapter, &adapter_list, list) | |
255 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
256 | struct ehea_port *port = adapter->port[k]; | |
257 | ||
258 | if (!port || (port->state != EHEA_PORT_UP)) | |
259 | continue; | |
260 | ||
261 | num_registrations += 2; /* Broadcast registrations */ | |
262 | ||
263 | list_for_each_entry(mc_entry, &port->mc_list->list,list) | |
264 | num_registrations += 2; | |
265 | } | |
266 | ||
267 | if (num_registrations) { | |
baeb2ffa | 268 | arr = kcalloc(num_registrations, sizeof(*arr), GFP_ATOMIC); |
21eee2dd | 269 | if (!arr) |
52e21b1b | 270 | goto out; /* Keep the existing array */ |
21eee2dd TK |
271 | } else |
272 | goto out_update; | |
273 | ||
274 | list_for_each_entry(adapter, &adapter_list, list) { | |
275 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
276 | struct ehea_port *port = adapter->port[k]; | |
277 | ||
278 | if (!port || (port->state != EHEA_PORT_UP)) | |
279 | continue; | |
280 | ||
52e21b1b JBT |
281 | if (num_registrations == 0) |
282 | goto out_update; | |
283 | ||
21eee2dd TK |
284 | arr[i].adh = adapter->handle; |
285 | arr[i].port_id = port->logical_port_id; | |
286 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
287 | EHEA_BCMC_UNTAGGED; | |
288 | arr[i++].macaddr = port->mac_addr; | |
289 | ||
290 | arr[i].adh = adapter->handle; | |
291 | arr[i].port_id = port->logical_port_id; | |
292 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
293 | EHEA_BCMC_VLANID_ALL; | |
294 | arr[i++].macaddr = port->mac_addr; | |
52e21b1b | 295 | num_registrations -= 2; |
21eee2dd TK |
296 | |
297 | list_for_each_entry(mc_entry, | |
298 | &port->mc_list->list, list) { | |
52e21b1b JBT |
299 | if (num_registrations == 0) |
300 | goto out_update; | |
301 | ||
21eee2dd TK |
302 | arr[i].adh = adapter->handle; |
303 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 304 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 305 | EHEA_BCMC_UNTAGGED; |
5d384574 TLSC |
306 | if (mc_entry->macaddr == 0) |
307 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd TK |
308 | arr[i++].macaddr = mc_entry->macaddr; |
309 | ||
310 | arr[i].adh = adapter->handle; | |
311 | arr[i].port_id = port->logical_port_id; | |
5d384574 | 312 | arr[i].reg_type = EHEA_BCMC_MULTICAST | |
21eee2dd | 313 | EHEA_BCMC_VLANID_ALL; |
5d384574 TLSC |
314 | if (mc_entry->macaddr == 0) |
315 | arr[i].reg_type |= EHEA_BCMC_SCOPE_ALL; | |
21eee2dd | 316 | arr[i++].macaddr = mc_entry->macaddr; |
52e21b1b | 317 | num_registrations -= 2; |
21eee2dd TK |
318 | } |
319 | } | |
320 | } | |
321 | ||
322 | out_update: | |
323 | kfree(ehea_bcmc_regs.arr); | |
324 | ehea_bcmc_regs.arr = arr; | |
325 | ehea_bcmc_regs.num_entries = i; | |
52e21b1b JBT |
326 | out: |
327 | spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags); | |
21eee2dd TK |
328 | } |
329 | ||
239c562c AB |
330 | static struct rtnl_link_stats64 *ehea_get_stats64(struct net_device *dev, |
331 | struct rtnl_link_stats64 *stats) | |
7a291083 JBT |
332 | { |
333 | struct ehea_port *port = netdev_priv(dev); | |
2aefcad8 | 334 | u64 rx_packets = 0, tx_packets = 0, rx_bytes = 0, tx_bytes = 0; |
7a291083 JBT |
335 | int i; |
336 | ||
2aefcad8 | 337 | for (i = 0; i < port->num_def_qps; i++) { |
338 | rx_packets += port->port_res[i].rx_packets; | |
339 | rx_bytes += port->port_res[i].rx_bytes; | |
340 | } | |
341 | ||
723f28e4 | 342 | for (i = 0; i < port->num_def_qps; i++) { |
2aefcad8 | 343 | tx_packets += port->port_res[i].tx_packets; |
344 | tx_bytes += port->port_res[i].tx_bytes; | |
345 | } | |
346 | ||
347 | stats->tx_packets = tx_packets; | |
348 | stats->rx_bytes = rx_bytes; | |
349 | stats->tx_bytes = tx_bytes; | |
350 | stats->rx_packets = rx_packets; | |
351 | ||
09c1d446 ED |
352 | stats->multicast = port->stats.multicast; |
353 | stats->rx_errors = port->stats.rx_errors; | |
354 | return stats; | |
2aefcad8 | 355 | } |
356 | ||
357 | static void ehea_update_stats(struct work_struct *work) | |
358 | { | |
359 | struct ehea_port *port = | |
360 | container_of(work, struct ehea_port, stats_work.work); | |
361 | struct net_device *dev = port->netdev; | |
239c562c | 362 | struct rtnl_link_stats64 *stats = &port->stats; |
2aefcad8 | 363 | struct hcp_ehea_port_cb2 *cb2; |
364 | u64 hret; | |
7a291083 | 365 | |
3d8009c7 | 366 | cb2 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 367 | if (!cb2) { |
2aefcad8 | 368 | netdev_err(dev, "No mem for cb2. Some interface statistics were not updated\n"); |
369 | goto resched; | |
7a291083 JBT |
370 | } |
371 | ||
372 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
373 | port->logical_port_id, | |
374 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
375 | if (hret != H_SUCCESS) { | |
8c4877a4 | 376 | netdev_err(dev, "query_ehea_port failed\n"); |
7a291083 JBT |
377 | goto out_herr; |
378 | } | |
379 | ||
380 | if (netif_msg_hw(port)) | |
381 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
382 | ||
7a291083 JBT |
383 | stats->multicast = cb2->rxmcp; |
384 | stats->rx_errors = cb2->rxuerr; | |
7a291083 JBT |
385 | |
386 | out_herr: | |
3faf2693 | 387 | free_page((unsigned long)cb2); |
2aefcad8 | 388 | resched: |
67c170a2 AB |
389 | schedule_delayed_work(&port->stats_work, |
390 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
391 | } |
392 | ||
393 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
394 | { | |
395 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
396 | struct net_device *dev = pr->port->netdev; | |
397 | int max_index_mask = pr->rq1_skba.len - 1; | |
2c69448b JBT |
398 | int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes; |
399 | int adder = 0; | |
7a291083 JBT |
400 | int i; |
401 | ||
2c69448b JBT |
402 | pr->rq1_skba.os_skbs = 0; |
403 | ||
404 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { | |
44fb3126 TK |
405 | if (nr_of_wqes > 0) |
406 | pr->rq1_skba.index = index; | |
2c69448b | 407 | pr->rq1_skba.os_skbs = fill_wqes; |
7a291083 | 408 | return; |
2c69448b | 409 | } |
7a291083 | 410 | |
2c69448b | 411 | for (i = 0; i < fill_wqes; i++) { |
7a291083 JBT |
412 | if (!skb_arr_rq1[index]) { |
413 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
414 | EHEA_L_PKT_SIZE); | |
415 | if (!skb_arr_rq1[index]) { | |
2c69448b | 416 | pr->rq1_skba.os_skbs = fill_wqes - i; |
7a291083 JBT |
417 | break; |
418 | } | |
419 | } | |
420 | index--; | |
421 | index &= max_index_mask; | |
2c69448b | 422 | adder++; |
7a291083 | 423 | } |
2c69448b JBT |
424 | |
425 | if (adder == 0) | |
426 | return; | |
427 | ||
7a291083 | 428 | /* Ring doorbell */ |
2c69448b | 429 | ehea_update_rq1a(pr->qp, adder); |
7a291083 JBT |
430 | } |
431 | ||
e2878806 | 432 | static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) |
7a291083 | 433 | { |
7a291083 JBT |
434 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; |
435 | struct net_device *dev = pr->port->netdev; | |
436 | int i; | |
437 | ||
5c7e57f7 | 438 | if (nr_rq1a > pr->rq1_skba.len) { |
8c4877a4 | 439 | netdev_err(dev, "NR_RQ1A bigger than skb array len\n"); |
5c7e57f7 BL |
440 | return; |
441 | } | |
442 | ||
443 | for (i = 0; i < nr_rq1a; i++) { | |
7a291083 | 444 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); |
720a43ef | 445 | if (!skb_arr_rq1[i]) |
e2878806 | 446 | break; |
7a291083 JBT |
447 | } |
448 | /* Ring doorbell */ | |
f76957fc | 449 | ehea_update_rq1a(pr->qp, i - 1); |
7a291083 JBT |
450 | } |
451 | ||
452 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
453 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
454 | int num_wqes, int wqe_type, int packet_size) | |
455 | { | |
456 | struct net_device *dev = pr->port->netdev; | |
457 | struct ehea_qp *qp = pr->qp; | |
458 | struct sk_buff **skb_arr = q_skba->arr; | |
459 | struct ehea_rwqe *rwqe; | |
460 | int i, index, max_index_mask, fill_wqes; | |
2c69448b | 461 | int adder = 0; |
7a291083 JBT |
462 | int ret = 0; |
463 | ||
464 | fill_wqes = q_skba->os_skbs + num_wqes; | |
2c69448b | 465 | q_skba->os_skbs = 0; |
7a291083 | 466 | |
2c69448b JBT |
467 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
468 | q_skba->os_skbs = fill_wqes; | |
7a291083 | 469 | return ret; |
2c69448b | 470 | } |
7a291083 JBT |
471 | |
472 | index = q_skba->index; | |
473 | max_index_mask = q_skba->len - 1; | |
474 | for (i = 0; i < fill_wqes; i++) { | |
2c69448b | 475 | u64 tmp_addr; |
89d71a66 ED |
476 | struct sk_buff *skb; |
477 | ||
478 | skb = netdev_alloc_skb_ip_align(dev, packet_size); | |
7a291083 | 479 | if (!skb) { |
7a291083 | 480 | q_skba->os_skbs = fill_wqes - i; |
e2878806 | 481 | if (q_skba->os_skbs == q_skba->len - 2) { |
8c4877a4 JP |
482 | netdev_info(pr->port->netdev, |
483 | "rq%i ran dry - no mem for skb\n", | |
484 | rq_nr); | |
e2878806 TK |
485 | ret = -ENOMEM; |
486 | } | |
7a291083 JBT |
487 | break; |
488 | } | |
7a291083 JBT |
489 | |
490 | skb_arr[index] = skb; | |
2c69448b JBT |
491 | tmp_addr = ehea_map_vaddr(skb->data); |
492 | if (tmp_addr == -1) { | |
493 | dev_kfree_skb(skb); | |
494 | q_skba->os_skbs = fill_wqes - i; | |
495 | ret = 0; | |
496 | break; | |
497 | } | |
7a291083 JBT |
498 | |
499 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
500 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
d1d25aab | 501 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); |
7a291083 | 502 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; |
2c69448b | 503 | rwqe->sg_list[0].vaddr = tmp_addr; |
7a291083 JBT |
504 | rwqe->sg_list[0].len = packet_size; |
505 | rwqe->data_segments = 1; | |
506 | ||
507 | index++; | |
508 | index &= max_index_mask; | |
2c69448b | 509 | adder++; |
7a291083 | 510 | } |
44c82152 | 511 | |
7a291083 | 512 | q_skba->index = index; |
2c69448b JBT |
513 | if (adder == 0) |
514 | goto out; | |
7a291083 JBT |
515 | |
516 | /* Ring doorbell */ | |
517 | iosync(); | |
518 | if (rq_nr == 2) | |
2c69448b | 519 | ehea_update_rq2a(pr->qp, adder); |
7a291083 | 520 | else |
2c69448b | 521 | ehea_update_rq3a(pr->qp, adder); |
44c82152 | 522 | out: |
7a291083 JBT |
523 | return ret; |
524 | } | |
525 | ||
526 | ||
527 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
528 | { | |
529 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
530 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
89d71a66 | 531 | EHEA_RQ2_PKT_SIZE); |
7a291083 JBT |
532 | } |
533 | ||
534 | ||
535 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
536 | { | |
537 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
538 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
89d71a66 | 539 | EHEA_MAX_PACKET_SIZE); |
7a291083 JBT |
540 | } |
541 | ||
542 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
543 | { | |
544 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
545 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
546 | return 0; | |
547 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
548 | (cqe->header_length == 0)) | |
549 | return 0; | |
550 | return -EINVAL; | |
551 | } | |
552 | ||
553 | static inline void ehea_fill_skb(struct net_device *dev, | |
b9564468 AB |
554 | struct sk_buff *skb, struct ehea_cqe *cqe, |
555 | struct ehea_port_res *pr) | |
7a291083 JBT |
556 | { |
557 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
558 | ||
559 | skb_put(skb, length); | |
7a291083 | 560 | skb->protocol = eth_type_trans(skb, dev); |
71085ce8 BL |
561 | |
562 | /* The packet was not an IPV4 packet so a complemented checksum was | |
563 | calculated. The value is found in the Internet Checksum field. */ | |
564 | if (cqe->status & EHEA_CQE_BLIND_CKSUM) { | |
565 | skb->ip_summed = CHECKSUM_COMPLETE; | |
566 | skb->csum = csum_unfold(~cqe->inet_checksum_value); | |
567 | } else | |
568 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
b9564468 AB |
569 | |
570 | skb_record_rx_queue(skb, pr - &pr->port->port_res[0]); | |
7a291083 JBT |
571 | } |
572 | ||
573 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
574 | int arr_len, | |
575 | struct ehea_cqe *cqe) | |
576 | { | |
577 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
578 | struct sk_buff *skb; | |
579 | void *pref; | |
580 | int x; | |
581 | ||
582 | x = skb_index + 1; | |
583 | x &= (arr_len - 1); | |
584 | ||
585 | pref = skb_array[x]; | |
0b2febf3 HH |
586 | if (pref) { |
587 | prefetchw(pref); | |
588 | prefetchw(pref + EHEA_CACHE_LINE); | |
589 | ||
590 | pref = (skb_array[x]->data); | |
591 | prefetch(pref); | |
592 | prefetch(pref + EHEA_CACHE_LINE); | |
593 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
594 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
595 | } | |
596 | ||
7a291083 JBT |
597 | skb = skb_array[skb_index]; |
598 | skb_array[skb_index] = NULL; | |
599 | return skb; | |
600 | } | |
601 | ||
602 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
603 | int arr_len, int wqe_index) | |
604 | { | |
605 | struct sk_buff *skb; | |
606 | void *pref; | |
607 | int x; | |
608 | ||
609 | x = wqe_index + 1; | |
610 | x &= (arr_len - 1); | |
611 | ||
612 | pref = skb_array[x]; | |
0b2febf3 HH |
613 | if (pref) { |
614 | prefetchw(pref); | |
615 | prefetchw(pref + EHEA_CACHE_LINE); | |
7a291083 | 616 | |
0b2febf3 HH |
617 | pref = (skb_array[x]->data); |
618 | prefetchw(pref); | |
619 | prefetchw(pref + EHEA_CACHE_LINE); | |
620 | } | |
7a291083 JBT |
621 | |
622 | skb = skb_array[wqe_index]; | |
623 | skb_array[wqe_index] = NULL; | |
624 | return skb; | |
625 | } | |
626 | ||
627 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
628 | struct ehea_cqe *cqe, int *processed_rq2, | |
629 | int *processed_rq3) | |
630 | { | |
631 | struct sk_buff *skb; | |
632 | ||
acbddb59 JBT |
633 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
634 | pr->p_stats.err_tcp_cksum++; | |
635 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
636 | pr->p_stats.err_ip_cksum++; | |
637 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
638 | pr->p_stats.err_frame_crc++; | |
639 | ||
7a291083 JBT |
640 | if (rq == 2) { |
641 | *processed_rq2 += 1; | |
642 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
643 | dev_kfree_skb(skb); | |
644 | } else if (rq == 3) { | |
645 | *processed_rq3 += 1; | |
646 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
647 | dev_kfree_skb(skb); | |
648 | } | |
649 | ||
650 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
58dd8258 | 651 | if (netif_msg_rx_err(pr->port)) { |
8c4877a4 JP |
652 | pr_err("Critical receive error for QP %d. Resetting port.\n", |
653 | pr->qp->init_attr.qp_nr); | |
58dd8258 TK |
654 | ehea_dump(cqe, sizeof(*cqe), "CQE"); |
655 | } | |
2f69ae01 | 656 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
657 | return 1; |
658 | } | |
659 | ||
660 | return 0; | |
661 | } | |
662 | ||
bea3348e SH |
663 | static int ehea_proc_rwqes(struct net_device *dev, |
664 | struct ehea_port_res *pr, | |
665 | int budget) | |
7a291083 | 666 | { |
18604c54 | 667 | struct ehea_port *port = pr->port; |
7a291083 JBT |
668 | struct ehea_qp *qp = pr->qp; |
669 | struct ehea_cqe *cqe; | |
670 | struct sk_buff *skb; | |
671 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
672 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
673 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
674 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
675 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
676 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
677 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
ce45b873 | 678 | u64 processed_bytes = 0; |
bea3348e | 679 | int wqe_index, last_wqe_index, rq, port_reset; |
7a291083 JBT |
680 | |
681 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
682 | last_wqe_index = 0; | |
7a291083 | 683 | |
7a291083 | 684 | cqe = ehea_poll_rq1(qp, &wqe_index); |
bea3348e | 685 | while ((processed < budget) && cqe) { |
7a291083 JBT |
686 | ehea_inc_rq1(qp); |
687 | processed_rq1++; | |
688 | processed++; | |
7a291083 JBT |
689 | if (netif_msg_rx_status(port)) |
690 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
691 | ||
692 | last_wqe_index = wqe_index; | |
693 | rmb(); | |
694 | if (!ehea_check_cqe(cqe, &rq)) { | |
508d2b5d DM |
695 | if (rq == 1) { |
696 | /* LL RQ1 */ | |
7a291083 JBT |
697 | skb = get_skb_by_index_ll(skb_arr_rq1, |
698 | skb_arr_rq1_len, | |
699 | wqe_index); | |
700 | if (unlikely(!skb)) { | |
782615ae | 701 | netif_info(port, rx_err, dev, |
8c4877a4 | 702 | "LL rq1: skb=NULL\n"); |
18604c54 | 703 | |
bea3348e | 704 | skb = netdev_alloc_skb(dev, |
7a291083 | 705 | EHEA_L_PKT_SIZE); |
720a43ef | 706 | if (!skb) |
7a291083 JBT |
707 | break; |
708 | } | |
508d2b5d | 709 | skb_copy_to_linear_data(skb, ((char *)cqe) + 64, |
d1d25aab | 710 | cqe->num_bytes_transfered - 4); |
b9564468 | 711 | ehea_fill_skb(dev, skb, cqe, pr); |
508d2b5d DM |
712 | } else if (rq == 2) { |
713 | /* RQ2 */ | |
7a291083 JBT |
714 | skb = get_skb_by_index(skb_arr_rq2, |
715 | skb_arr_rq2_len, cqe); | |
716 | if (unlikely(!skb)) { | |
8c4877a4 JP |
717 | netif_err(port, rx_err, dev, |
718 | "rq2: skb=NULL\n"); | |
7a291083 JBT |
719 | break; |
720 | } | |
b9564468 | 721 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 | 722 | processed_rq2++; |
508d2b5d DM |
723 | } else { |
724 | /* RQ3 */ | |
7a291083 JBT |
725 | skb = get_skb_by_index(skb_arr_rq3, |
726 | skb_arr_rq3_len, cqe); | |
727 | if (unlikely(!skb)) { | |
8c4877a4 JP |
728 | netif_err(port, rx_err, dev, |
729 | "rq3: skb=NULL\n"); | |
7a291083 JBT |
730 | break; |
731 | } | |
b9564468 | 732 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 JBT |
733 | processed_rq3++; |
734 | } | |
735 | ||
ce45b873 | 736 | processed_bytes += skb->len; |
3428414f AB |
737 | |
738 | if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) | |
e5905c83 DM |
739 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), |
740 | cqe->vlan_tag); | |
3428414f AB |
741 | |
742 | napi_gro_receive(&pr->napi, skb); | |
18604c54 | 743 | } else { |
acbddb59 | 744 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
745 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
746 | &processed_rq2, | |
747 | &processed_rq3); | |
748 | if (port_reset) | |
749 | break; | |
750 | } | |
751 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
752 | } | |
753 | ||
7a291083 | 754 | pr->rx_packets += processed; |
ce45b873 | 755 | pr->rx_bytes += processed_bytes; |
7a291083 JBT |
756 | |
757 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
758 | ehea_refill_rq2(pr, processed_rq2); | |
759 | ehea_refill_rq3(pr, processed_rq3); | |
760 | ||
bea3348e | 761 | return processed; |
7a291083 JBT |
762 | } |
763 | ||
2928db4c AD |
764 | #define SWQE_RESTART_CHECK 0xdeadbeaff00d0000ull |
765 | ||
766 | static void reset_sq_restart_flag(struct ehea_port *port) | |
767 | { | |
768 | int i; | |
769 | ||
723f28e4 | 770 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c AD |
771 | struct ehea_port_res *pr = &port->port_res[i]; |
772 | pr->sq_restart_flag = 0; | |
773 | } | |
a8bb69f7 | 774 | wake_up(&port->restart_wq); |
2928db4c AD |
775 | } |
776 | ||
777 | static void check_sqs(struct ehea_port *port) | |
778 | { | |
779 | struct ehea_swqe *swqe; | |
780 | int swqe_index; | |
781 | int i, k; | |
782 | ||
723f28e4 | 783 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c | 784 | struct ehea_port_res *pr = &port->port_res[i]; |
a8bb69f7 | 785 | int ret; |
2928db4c AD |
786 | k = 0; |
787 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
788 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
789 | atomic_dec(&pr->swqe_avail); | |
790 | ||
791 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
792 | swqe->wr_id = SWQE_RESTART_CHECK; | |
793 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
794 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT; | |
795 | swqe->immediate_data_length = 80; | |
796 | ||
797 | ehea_post_swqe(pr->qp, swqe); | |
798 | ||
a8bb69f7 BL |
799 | ret = wait_event_timeout(port->restart_wq, |
800 | pr->sq_restart_flag == 0, | |
801 | msecs_to_jiffies(100)); | |
802 | ||
803 | if (!ret) { | |
8c4877a4 | 804 | pr_err("HW/SW queues out of sync\n"); |
a8bb69f7 BL |
805 | ehea_schedule_port_reset(pr->port); |
806 | return; | |
2928db4c AD |
807 | } |
808 | } | |
2928db4c AD |
809 | } |
810 | ||
811 | ||
18604c54 | 812 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 813 | { |
acbddb59 | 814 | struct sk_buff *skb; |
7a291083 JBT |
815 | struct ehea_cq *send_cq = pr->send_cq; |
816 | struct ehea_cqe *cqe; | |
18604c54 | 817 | int quota = my_quota; |
7a291083 JBT |
818 | int cqe_counter = 0; |
819 | int swqe_av = 0; | |
acbddb59 | 820 | int index; |
b9564468 AB |
821 | struct netdev_queue *txq = netdev_get_tx_queue(pr->port->netdev, |
822 | pr - &pr->port->port_res[0]); | |
7a291083 | 823 | |
18604c54 | 824 | cqe = ehea_poll_cq(send_cq); |
508d2b5d | 825 | while (cqe && (quota > 0)) { |
18604c54 JBT |
826 | ehea_inc_cq(send_cq); |
827 | ||
7a291083 JBT |
828 | cqe_counter++; |
829 | rmb(); | |
2928db4c AD |
830 | |
831 | if (cqe->wr_id == SWQE_RESTART_CHECK) { | |
832 | pr->sq_restart_flag = 1; | |
833 | swqe_av++; | |
834 | break; | |
835 | } | |
836 | ||
7a291083 | 837 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { |
8c4877a4 JP |
838 | pr_err("Bad send completion status=0x%04X\n", |
839 | cqe->status); | |
ea96ceac | 840 | |
7a291083 JBT |
841 | if (netif_msg_tx_err(pr->port)) |
842 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
ea96ceac TK |
843 | |
844 | if (cqe->status & EHEA_CQE_STAT_RESET_MASK) { | |
8c4877a4 | 845 | pr_err("Resetting port\n"); |
ea96ceac TK |
846 | ehea_schedule_port_reset(pr->port); |
847 | break; | |
848 | } | |
7a291083 JBT |
849 | } |
850 | ||
851 | if (netif_msg_tx_done(pr->port)) | |
852 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
853 | ||
854 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
855 | == EHEA_SWQE2_TYPE)) { |
856 | ||
857 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
858 | skb = pr->sq_skba.arr[index]; | |
859 | dev_kfree_skb(skb); | |
860 | pr->sq_skba.arr[index] = NULL; | |
861 | } | |
7a291083 JBT |
862 | |
863 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
864 | quota--; | |
18604c54 JBT |
865 | |
866 | cqe = ehea_poll_cq(send_cq); | |
ee289b64 | 867 | } |
7a291083 JBT |
868 | |
869 | ehea_update_feca(send_cq, cqe_counter); | |
870 | atomic_add(swqe_av, &pr->swqe_avail); | |
871 | ||
b9564468 AB |
872 | if (unlikely(netif_tx_queue_stopped(txq) && |
873 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))) { | |
874 | __netif_tx_lock(txq, smp_processor_id()); | |
875 | if (netif_tx_queue_stopped(txq) && | |
876 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th)) | |
877 | netif_tx_wake_queue(txq); | |
878 | __netif_tx_unlock(txq); | |
7a291083 | 879 | } |
b9564468 | 880 | |
5b27d427 | 881 | wake_up(&pr->port->swqe_avail_wq); |
7a291083 | 882 | |
18604c54 | 883 | return cqe; |
7a291083 JBT |
884 | } |
885 | ||
bea3348e | 886 | #define EHEA_POLL_MAX_CQES 65535 |
18604c54 | 887 | |
bea3348e | 888 | static int ehea_poll(struct napi_struct *napi, int budget) |
7a291083 | 889 | { |
508d2b5d DM |
890 | struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, |
891 | napi); | |
bea3348e | 892 | struct net_device *dev = pr->port->netdev; |
18604c54 JBT |
893 | struct ehea_cqe *cqe; |
894 | struct ehea_cqe *cqe_skb = NULL; | |
222ca96b | 895 | int wqe_index; |
bea3348e | 896 | int rx = 0; |
18604c54 | 897 | |
bea3348e | 898 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
222ca96b | 899 | rx += ehea_proc_rwqes(dev, pr, budget - rx); |
bea3348e | 900 | |
222ca96b | 901 | while (rx != budget) { |
288379f0 | 902 | napi_complete(napi); |
18604c54 JBT |
903 | ehea_reset_cq_ep(pr->recv_cq); |
904 | ehea_reset_cq_ep(pr->send_cq); | |
905 | ehea_reset_cq_n1(pr->recv_cq); | |
906 | ehea_reset_cq_n1(pr->send_cq); | |
a91fb143 | 907 | rmb(); |
18604c54 JBT |
908 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); |
909 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
910 | ||
e542aa6b | 911 | if (!cqe && !cqe_skb) |
bea3348e | 912 | return rx; |
18604c54 | 913 | |
288379f0 | 914 | if (!napi_reschedule(napi)) |
bea3348e | 915 | return rx; |
18604c54 | 916 | |
bea3348e SH |
917 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
918 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
919 | } | |
e542aa6b | 920 | |
bea3348e | 921 | return rx; |
7a291083 JBT |
922 | } |
923 | ||
8d22c971 JBT |
924 | #ifdef CONFIG_NET_POLL_CONTROLLER |
925 | static void ehea_netpoll(struct net_device *dev) | |
926 | { | |
927 | struct ehea_port *port = netdev_priv(dev); | |
bea3348e | 928 | int i; |
8d22c971 | 929 | |
bea3348e | 930 | for (i = 0; i < port->num_def_qps; i++) |
288379f0 | 931 | napi_schedule(&port->port_res[i].napi); |
8d22c971 JBT |
932 | } |
933 | #endif | |
934 | ||
7d12e780 | 935 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
936 | { |
937 | struct ehea_port_res *pr = param; | |
18604c54 | 938 | |
288379f0 | 939 | napi_schedule(&pr->napi); |
18604c54 | 940 | |
7a291083 JBT |
941 | return IRQ_HANDLED; |
942 | } | |
943 | ||
7d12e780 | 944 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
945 | { |
946 | struct ehea_port *port = param; | |
947 | struct ehea_eqe *eqe; | |
d2db9eea | 948 | struct ehea_qp *qp; |
7a291083 | 949 | u32 qp_token; |
ea96ceac TK |
950 | u64 resource_type, aer, aerr; |
951 | int reset_port = 0; | |
7a291083 JBT |
952 | |
953 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 954 | |
7a291083 | 955 | while (eqe) { |
7a291083 | 956 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
8c4877a4 JP |
957 | pr_err("QP aff_err: entry=0x%llx, token=0x%x\n", |
958 | eqe->entry, qp_token); | |
d2db9eea JBT |
959 | |
960 | qp = port->port_res[qp_token].qp; | |
ea96ceac TK |
961 | |
962 | resource_type = ehea_error_data(port->adapter, qp->fw_handle, | |
963 | &aer, &aerr); | |
964 | ||
965 | if (resource_type == EHEA_AER_RESTYPE_QP) { | |
966 | if ((aer & EHEA_AER_RESET_MASK) || | |
967 | (aerr & EHEA_AERR_RESET_MASK)) | |
968 | reset_port = 1; | |
969 | } else | |
970 | reset_port = 1; /* Reset in case of CQ or EQ error */ | |
971 | ||
bb3a6449 | 972 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
973 | } |
974 | ||
ea96ceac | 975 | if (reset_port) { |
8c4877a4 | 976 | pr_err("Resetting port\n"); |
ea96ceac TK |
977 | ehea_schedule_port_reset(port); |
978 | } | |
d2db9eea | 979 | |
7a291083 JBT |
980 | return IRQ_HANDLED; |
981 | } | |
982 | ||
983 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
984 | int logical_port) | |
985 | { | |
986 | int i; | |
987 | ||
1acf2318 | 988 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 | 989 | if (adapter->port[i]) |
d1d25aab | 990 | if (adapter->port[i]->logical_port_id == logical_port) |
41b69c70 | 991 | return adapter->port[i]; |
7a291083 JBT |
992 | return NULL; |
993 | } | |
994 | ||
995 | int ehea_sense_port_attr(struct ehea_port *port) | |
996 | { | |
997 | int ret; | |
998 | u64 hret; | |
999 | struct hcp_ehea_port_cb0 *cb0; | |
1000 | ||
508d2b5d | 1001 | /* may be called via ehea_neq_tasklet() */ |
3faf2693 | 1002 | cb0 = (void *)get_zeroed_page(GFP_ATOMIC); |
508d2b5d | 1003 | if (!cb0) { |
8c4877a4 | 1004 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1005 | ret = -ENOMEM; |
1006 | goto out; | |
1007 | } | |
1008 | ||
1009 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1010 | port->logical_port_id, H_PORT_CB0, | |
1011 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
1012 | cb0); | |
1013 | if (hret != H_SUCCESS) { | |
1014 | ret = -EIO; | |
1015 | goto out_free; | |
1016 | } | |
1017 | ||
1018 | /* MAC address */ | |
1019 | port->mac_addr = cb0->port_mac_addr << 16; | |
1020 | ||
508d2b5d | 1021 | if (!is_valid_ether_addr((u8 *)&port->mac_addr)) { |
7a291083 JBT |
1022 | ret = -EADDRNOTAVAIL; |
1023 | goto out_free; | |
1024 | } | |
1025 | ||
1026 | /* Port speed */ | |
1027 | switch (cb0->port_speed) { | |
1028 | case H_SPEED_10M_H: | |
1029 | port->port_speed = EHEA_SPEED_10M; | |
1030 | port->full_duplex = 0; | |
1031 | break; | |
1032 | case H_SPEED_10M_F: | |
1033 | port->port_speed = EHEA_SPEED_10M; | |
1034 | port->full_duplex = 1; | |
1035 | break; | |
1036 | case H_SPEED_100M_H: | |
1037 | port->port_speed = EHEA_SPEED_100M; | |
1038 | port->full_duplex = 0; | |
1039 | break; | |
1040 | case H_SPEED_100M_F: | |
1041 | port->port_speed = EHEA_SPEED_100M; | |
1042 | port->full_duplex = 1; | |
1043 | break; | |
1044 | case H_SPEED_1G_F: | |
1045 | port->port_speed = EHEA_SPEED_1G; | |
1046 | port->full_duplex = 1; | |
1047 | break; | |
1048 | case H_SPEED_10G_F: | |
1049 | port->port_speed = EHEA_SPEED_10G; | |
1050 | port->full_duplex = 1; | |
1051 | break; | |
1052 | default: | |
1053 | port->port_speed = 0; | |
1054 | port->full_duplex = 0; | |
1055 | break; | |
1056 | } | |
1057 | ||
e919b593 | 1058 | port->autoneg = 1; |
18604c54 | 1059 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 1060 | |
7a291083 | 1061 | /* Number of default QPs */ |
18604c54 JBT |
1062 | if (use_mcs) |
1063 | port->num_def_qps = cb0->num_default_qps; | |
1064 | else | |
1065 | port->num_def_qps = 1; | |
7a291083 JBT |
1066 | |
1067 | if (!port->num_def_qps) { | |
1068 | ret = -EINVAL; | |
1069 | goto out_free; | |
1070 | } | |
1071 | ||
7a291083 JBT |
1072 | ret = 0; |
1073 | out_free: | |
1074 | if (ret || netif_msg_probe(port)) | |
1075 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
3faf2693 | 1076 | free_page((unsigned long)cb0); |
7a291083 JBT |
1077 | out: |
1078 | return ret; | |
1079 | } | |
1080 | ||
1081 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
1082 | { | |
1083 | struct hcp_ehea_port_cb4 *cb4; | |
1084 | u64 hret; | |
1085 | int ret = 0; | |
1086 | ||
3faf2693 | 1087 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1088 | if (!cb4) { |
8c4877a4 | 1089 | pr_err("no mem for cb4\n"); |
7a291083 JBT |
1090 | ret = -ENOMEM; |
1091 | goto out; | |
1092 | } | |
1093 | ||
1094 | cb4->port_speed = port_speed; | |
1095 | ||
1096 | netif_carrier_off(port->netdev); | |
1097 | ||
1098 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1099 | port->logical_port_id, | |
1100 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
1101 | if (hret == H_SUCCESS) { | |
1102 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
1103 | ||
1104 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1105 | port->logical_port_id, | |
1106 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
1107 | cb4); | |
1108 | if (hret == H_SUCCESS) { | |
1109 | switch (cb4->port_speed) { | |
1110 | case H_SPEED_10M_H: | |
1111 | port->port_speed = EHEA_SPEED_10M; | |
1112 | port->full_duplex = 0; | |
1113 | break; | |
1114 | case H_SPEED_10M_F: | |
1115 | port->port_speed = EHEA_SPEED_10M; | |
1116 | port->full_duplex = 1; | |
1117 | break; | |
1118 | case H_SPEED_100M_H: | |
1119 | port->port_speed = EHEA_SPEED_100M; | |
1120 | port->full_duplex = 0; | |
1121 | break; | |
1122 | case H_SPEED_100M_F: | |
1123 | port->port_speed = EHEA_SPEED_100M; | |
1124 | port->full_duplex = 1; | |
1125 | break; | |
1126 | case H_SPEED_1G_F: | |
1127 | port->port_speed = EHEA_SPEED_1G; | |
1128 | port->full_duplex = 1; | |
1129 | break; | |
1130 | case H_SPEED_10G_F: | |
1131 | port->port_speed = EHEA_SPEED_10G; | |
1132 | port->full_duplex = 1; | |
1133 | break; | |
1134 | default: | |
1135 | port->port_speed = 0; | |
1136 | port->full_duplex = 0; | |
1137 | break; | |
1138 | } | |
1139 | } else { | |
8c4877a4 | 1140 | pr_err("Failed sensing port speed\n"); |
7a291083 JBT |
1141 | ret = -EIO; |
1142 | } | |
1143 | } else { | |
1144 | if (hret == H_AUTHORITY) { | |
8c4877a4 | 1145 | pr_info("Hypervisor denied setting port speed\n"); |
7a291083 JBT |
1146 | ret = -EPERM; |
1147 | } else { | |
1148 | ret = -EIO; | |
8c4877a4 | 1149 | pr_err("Failed setting port speed\n"); |
7a291083 JBT |
1150 | } |
1151 | } | |
8759cf76 JBT |
1152 | if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP)) |
1153 | netif_carrier_on(port->netdev); | |
1154 | ||
3faf2693 | 1155 | free_page((unsigned long)cb4); |
7a291083 JBT |
1156 | out: |
1157 | return ret; | |
1158 | } | |
1159 | ||
1160 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
1161 | { | |
1162 | int ret; | |
1163 | u8 ec; | |
1164 | u8 portnum; | |
1165 | struct ehea_port *port; | |
8c4877a4 | 1166 | struct net_device *dev; |
7a291083 JBT |
1167 | |
1168 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
1169 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
1170 | port = ehea_get_port(adapter, portnum); | |
8c4877a4 | 1171 | dev = port->netdev; |
7a291083 JBT |
1172 | |
1173 | switch (ec) { | |
1174 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
1175 | ||
1176 | if (!port) { | |
8c4877a4 | 1177 | netdev_err(dev, "unknown portnum %x\n", portnum); |
7a291083 JBT |
1178 | break; |
1179 | } | |
1180 | ||
1181 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
8c4877a4 | 1182 | if (!netif_carrier_ok(dev)) { |
1e1675cc | 1183 | ret = ehea_sense_port_attr(port); |
7a291083 | 1184 | if (ret) { |
8c4877a4 | 1185 | netdev_err(dev, "failed resensing port attributes\n"); |
7a291083 JBT |
1186 | break; |
1187 | } | |
1188 | ||
8c4877a4 JP |
1189 | netif_info(port, link, dev, |
1190 | "Logical port up: %dMbps %s Duplex\n", | |
1191 | port->port_speed, | |
1192 | port->full_duplex == 1 ? | |
1193 | "Full" : "Half"); | |
7a291083 | 1194 | |
8c4877a4 JP |
1195 | netif_carrier_on(dev); |
1196 | netif_wake_queue(dev); | |
7a291083 JBT |
1197 | } |
1198 | } else | |
8c4877a4 JP |
1199 | if (netif_carrier_ok(dev)) { |
1200 | netif_info(port, link, dev, | |
1201 | "Logical port down\n"); | |
1202 | netif_carrier_off(dev); | |
b9564468 | 1203 | netif_tx_disable(dev); |
7a291083 JBT |
1204 | } |
1205 | ||
1206 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
8759cf76 | 1207 | port->phy_link = EHEA_PHY_LINK_UP; |
8c4877a4 JP |
1208 | netif_info(port, link, dev, |
1209 | "Physical port up\n"); | |
8759cf76 | 1210 | if (prop_carrier_state) |
8c4877a4 | 1211 | netif_carrier_on(dev); |
7a291083 | 1212 | } else { |
8759cf76 | 1213 | port->phy_link = EHEA_PHY_LINK_DOWN; |
8c4877a4 JP |
1214 | netif_info(port, link, dev, |
1215 | "Physical port down\n"); | |
8759cf76 | 1216 | if (prop_carrier_state) |
8c4877a4 | 1217 | netif_carrier_off(dev); |
7a291083 JBT |
1218 | } |
1219 | ||
1220 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
8c4877a4 JP |
1221 | netdev_info(dev, |
1222 | "External switch port is primary port\n"); | |
7a291083 | 1223 | else |
8c4877a4 JP |
1224 | netdev_info(dev, |
1225 | "External switch port is backup port\n"); | |
7a291083 JBT |
1226 | |
1227 | break; | |
1228 | case EHEA_EC_ADAPTER_MALFUNC: | |
8c4877a4 | 1229 | netdev_err(dev, "Adapter malfunction\n"); |
7a291083 JBT |
1230 | break; |
1231 | case EHEA_EC_PORT_MALFUNC: | |
8c4877a4 JP |
1232 | netdev_info(dev, "Port malfunction\n"); |
1233 | netif_carrier_off(dev); | |
b9564468 | 1234 | netif_tx_disable(dev); |
7a291083 JBT |
1235 | break; |
1236 | default: | |
8c4877a4 | 1237 | netdev_err(dev, "unknown event code %x, eqe=0x%llX\n", ec, eqe); |
7a291083 JBT |
1238 | break; |
1239 | } | |
1240 | } | |
1241 | ||
1242 | static void ehea_neq_tasklet(unsigned long data) | |
1243 | { | |
508d2b5d | 1244 | struct ehea_adapter *adapter = (struct ehea_adapter *)data; |
7a291083 JBT |
1245 | struct ehea_eqe *eqe; |
1246 | u64 event_mask; | |
1247 | ||
1248 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1249 | pr_debug("eqe=%p\n", eqe); |
7a291083 JBT |
1250 | |
1251 | while (eqe) { | |
8c4877a4 | 1252 | pr_debug("*eqe=%lx\n", (unsigned long) eqe->entry); |
7a291083 JBT |
1253 | ehea_parse_eqe(adapter, eqe->entry); |
1254 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1255 | pr_debug("next eqe=%p\n", eqe); |
7a291083 JBT |
1256 | } |
1257 | ||
1258 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
1259 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
1260 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
1261 | ||
1262 | ehea_h_reset_events(adapter->handle, | |
1263 | adapter->neq->fw_handle, event_mask); | |
1264 | } | |
1265 | ||
7d12e780 | 1266 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
1267 | { |
1268 | struct ehea_adapter *adapter = param; | |
1269 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
1270 | return IRQ_HANDLED; | |
1271 | } | |
1272 | ||
1273 | ||
1274 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
1275 | { | |
1276 | int ret; | |
1277 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
1278 | ||
f76957fc | 1279 | ehea_init_fill_rq1(pr, pr->rq1_skba.len); |
7a291083 | 1280 | |
e2878806 | 1281 | ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); |
7a291083 JBT |
1282 | |
1283 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
1284 | ||
1285 | return ret; | |
1286 | } | |
1287 | ||
1288 | static int ehea_reg_interrupts(struct net_device *dev) | |
1289 | { | |
1290 | struct ehea_port *port = netdev_priv(dev); | |
1291 | struct ehea_port_res *pr; | |
1292 | int i, ret; | |
1293 | ||
7a291083 JBT |
1294 | |
1295 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
1296 | dev->name); | |
1297 | ||
6b08f3ae | 1298 | ret = ibmebus_request_irq(port->qp_eq->attr.ist1, |
7a291083 | 1299 | ehea_qp_aff_irq_handler, |
46c915f8 | 1300 | 0, port->int_aff_name, port); |
7a291083 | 1301 | if (ret) { |
8c4877a4 JP |
1302 | netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n", |
1303 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1304 | goto out_free_qpeq; |
1305 | } | |
1306 | ||
8c4877a4 JP |
1307 | netif_info(port, ifup, dev, |
1308 | "irq_handle 0x%X for function qp_aff_irq_handler registered\n", | |
1309 | port->qp_eq->attr.ist1); | |
7a291083 | 1310 | |
18604c54 | 1311 | |
723f28e4 | 1312 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
1313 | pr = &port->port_res[i]; |
1314 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 | 1315 | "%s-queue%d", dev->name, i); |
6b08f3ae | 1316 | ret = ibmebus_request_irq(pr->eq->attr.ist1, |
18604c54 | 1317 | ehea_recv_irq_handler, |
46c915f8 | 1318 | 0, pr->int_send_name, pr); |
7a291083 | 1319 | if (ret) { |
8c4877a4 JP |
1320 | netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n", |
1321 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1322 | goto out_free_req; |
1323 | } | |
8c4877a4 JP |
1324 | netif_info(port, ifup, dev, |
1325 | "irq_handle 0x%X for function ehea_queue_int %d registered\n", | |
1326 | pr->eq->attr.ist1, i); | |
7a291083 JBT |
1327 | } |
1328 | out: | |
1329 | return ret; | |
1330 | ||
18604c54 | 1331 | |
7a291083 JBT |
1332 | out_free_req: |
1333 | while (--i >= 0) { | |
18604c54 | 1334 | u32 ist = port->port_res[i].eq->attr.ist1; |
6b08f3ae | 1335 | ibmebus_free_irq(ist, &port->port_res[i]); |
7a291083 | 1336 | } |
18604c54 | 1337 | |
7a291083 | 1338 | out_free_qpeq: |
6b08f3ae | 1339 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 | 1340 | i = port->num_def_qps; |
18604c54 | 1341 | |
7a291083 | 1342 | goto out; |
18604c54 | 1343 | |
7a291083 JBT |
1344 | } |
1345 | ||
1346 | static void ehea_free_interrupts(struct net_device *dev) | |
1347 | { | |
1348 | struct ehea_port *port = netdev_priv(dev); | |
1349 | struct ehea_port_res *pr; | |
1350 | int i; | |
1351 | ||
1352 | /* send */ | |
18604c54 | 1353 | |
723f28e4 | 1354 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 | 1355 | pr = &port->port_res[i]; |
6b08f3ae | 1356 | ibmebus_free_irq(pr->eq->attr.ist1, pr); |
8c4877a4 JP |
1357 | netif_info(port, intr, dev, |
1358 | "free send irq for res %d with handle 0x%X\n", | |
1359 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1360 | } |
1361 | ||
1362 | /* associated events */ | |
6b08f3ae | 1363 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
8c4877a4 JP |
1364 | netif_info(port, intr, dev, |
1365 | "associated event interrupt for handle 0x%X freed\n", | |
1366 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1367 | } |
1368 | ||
1369 | static int ehea_configure_port(struct ehea_port *port) | |
1370 | { | |
1371 | int ret, i; | |
1372 | u64 hret, mask; | |
1373 | struct hcp_ehea_port_cb0 *cb0; | |
1374 | ||
1375 | ret = -ENOMEM; | |
3faf2693 | 1376 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1377 | if (!cb0) |
1378 | goto out; | |
1379 | ||
1380 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1381 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1382 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1383 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1384 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1385 | PXLY_RC_VLAN_FILTER) | |
1386 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1387 | ||
18604c54 JBT |
1388 | for (i = 0; i < port->num_mcs; i++) |
1389 | if (use_mcs) | |
1390 | cb0->default_qpn_arr[i] = | |
1391 | port->port_res[i].qp->init_attr.qp_nr; | |
1392 | else | |
1393 | cb0->default_qpn_arr[i] = | |
1394 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1395 | |
7a291083 JBT |
1396 | if (netif_msg_ifup(port)) |
1397 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1398 | ||
1399 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1400 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1401 | ||
1402 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1403 | port->logical_port_id, | |
1404 | H_PORT_CB0, mask, cb0); | |
1405 | ret = -EIO; | |
1406 | if (hret != H_SUCCESS) | |
1407 | goto out_free; | |
1408 | ||
1409 | ret = 0; | |
1410 | ||
1411 | out_free: | |
3faf2693 | 1412 | free_page((unsigned long)cb0); |
7a291083 JBT |
1413 | out: |
1414 | return ret; | |
1415 | } | |
1416 | ||
1886e5d2 | 1417 | static int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1418 | { |
e542aa6b | 1419 | int ret; |
7a291083 JBT |
1420 | struct ehea_adapter *adapter = pr->port->adapter; |
1421 | ||
e542aa6b JBT |
1422 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1423 | if (ret) | |
7a291083 JBT |
1424 | goto out; |
1425 | ||
e542aa6b JBT |
1426 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1427 | if (ret) | |
1428 | goto out_free; | |
7a291083 JBT |
1429 | |
1430 | return 0; | |
1431 | ||
e542aa6b JBT |
1432 | out_free: |
1433 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1434 | out: |
8c4877a4 | 1435 | pr_err("Generating SMRS failed\n"); |
7a291083 JBT |
1436 | return -EIO; |
1437 | } | |
1438 | ||
1886e5d2 | 1439 | static int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1440 | { |
8e95a202 JP |
1441 | if ((ehea_rem_mr(&pr->send_mr)) || |
1442 | (ehea_rem_mr(&pr->recv_mr))) | |
e542aa6b JBT |
1443 | return -EIO; |
1444 | else | |
1445 | return 0; | |
7a291083 JBT |
1446 | } |
1447 | ||
1448 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1449 | { | |
508d2b5d | 1450 | int arr_size = sizeof(void *) * max_q_entries; |
7a291083 | 1451 | |
89bf67f1 | 1452 | q_skba->arr = vzalloc(arr_size); |
7a291083 JBT |
1453 | if (!q_skba->arr) |
1454 | return -ENOMEM; | |
1455 | ||
7a291083 JBT |
1456 | q_skba->len = max_q_entries; |
1457 | q_skba->index = 0; | |
1458 | q_skba->os_skbs = 0; | |
1459 | ||
1460 | return 0; | |
1461 | } | |
1462 | ||
1463 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1464 | struct port_res_cfg *pr_cfg, int queue_token) | |
1465 | { | |
1466 | struct ehea_adapter *adapter = port->adapter; | |
1467 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1468 | struct ehea_qp_init_attr *init_attr = NULL; | |
1469 | int ret = -EIO; | |
ce45b873 BL |
1470 | u64 tx_bytes, rx_bytes, tx_packets, rx_packets; |
1471 | ||
1472 | tx_bytes = pr->tx_bytes; | |
1473 | tx_packets = pr->tx_packets; | |
1474 | rx_bytes = pr->rx_bytes; | |
1475 | rx_packets = pr->rx_packets; | |
7a291083 JBT |
1476 | |
1477 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1478 | ||
ce45b873 BL |
1479 | pr->tx_bytes = rx_bytes; |
1480 | pr->tx_packets = tx_packets; | |
1481 | pr->rx_bytes = rx_bytes; | |
1482 | pr->rx_packets = rx_packets; | |
1483 | ||
7a291083 | 1484 | pr->port = port; |
7a291083 | 1485 | |
18604c54 JBT |
1486 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1487 | if (!pr->eq) { | |
8c4877a4 | 1488 | pr_err("create_eq failed (eq)\n"); |
7a291083 JBT |
1489 | goto out_free; |
1490 | } | |
1491 | ||
1492 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1493 | pr->eq->fw_handle, |
7a291083 JBT |
1494 | port->logical_port_id); |
1495 | if (!pr->recv_cq) { | |
8c4877a4 | 1496 | pr_err("create_cq failed (cq_recv)\n"); |
7a291083 JBT |
1497 | goto out_free; |
1498 | } | |
1499 | ||
1500 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1501 | pr->eq->fw_handle, |
7a291083 JBT |
1502 | port->logical_port_id); |
1503 | if (!pr->send_cq) { | |
8c4877a4 | 1504 | pr_err("create_cq failed (cq_send)\n"); |
7a291083 JBT |
1505 | goto out_free; |
1506 | } | |
1507 | ||
1508 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1509 | pr_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d\n", |
1510 | pr->send_cq->attr.act_nr_of_cqes, | |
1511 | pr->recv_cq->attr.act_nr_of_cqes); | |
7a291083 JBT |
1512 | |
1513 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1514 | if (!init_attr) { | |
1515 | ret = -ENOMEM; | |
8c4877a4 | 1516 | pr_err("no mem for ehea_qp_init_attr\n"); |
7a291083 JBT |
1517 | goto out_free; |
1518 | } | |
1519 | ||
1520 | init_attr->low_lat_rq1 = 1; | |
1521 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1522 | init_attr->rq_count = 3; | |
1523 | init_attr->qp_token = queue_token; | |
1524 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1525 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1526 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1527 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1528 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1529 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1530 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1531 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1532 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1533 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1534 | init_attr->port_nr = port->logical_port_id; | |
1535 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1536 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1537 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1538 | ||
1539 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1540 | if (!pr->qp) { | |
8c4877a4 | 1541 | pr_err("create_qp failed\n"); |
7a291083 JBT |
1542 | ret = -EIO; |
1543 | goto out_free; | |
1544 | } | |
1545 | ||
1546 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1547 | 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", |
1548 | init_attr->qp_nr, | |
1549 | init_attr->act_nr_send_wqes, | |
1550 | init_attr->act_nr_rwqes_rq1, | |
1551 | init_attr->act_nr_rwqes_rq2, | |
1552 | init_attr->act_nr_rwqes_rq3); | |
7a291083 | 1553 | |
44fb3126 TK |
1554 | pr->sq_skba_size = init_attr->act_nr_send_wqes + 1; |
1555 | ||
1556 | ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size); | |
7a291083 JBT |
1557 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); |
1558 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1559 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1560 | if (ret) | |
1561 | goto out_free; | |
1562 | ||
1563 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1564 | if (ehea_gen_smrs(pr) != 0) { | |
1565 | ret = -EIO; | |
1566 | goto out_free; | |
1567 | } | |
18604c54 | 1568 | |
7a291083 JBT |
1569 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1570 | ||
1571 | kfree(init_attr); | |
18604c54 | 1572 | |
bea3348e | 1573 | netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll, 64); |
18604c54 | 1574 | |
7a291083 JBT |
1575 | ret = 0; |
1576 | goto out; | |
1577 | ||
1578 | out_free: | |
1579 | kfree(init_attr); | |
1580 | vfree(pr->sq_skba.arr); | |
1581 | vfree(pr->rq1_skba.arr); | |
1582 | vfree(pr->rq2_skba.arr); | |
1583 | vfree(pr->rq3_skba.arr); | |
1584 | ehea_destroy_qp(pr->qp); | |
1585 | ehea_destroy_cq(pr->send_cq); | |
1586 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1587 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1588 | out: |
1589 | return ret; | |
1590 | } | |
1591 | ||
1592 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1593 | { | |
1594 | int ret, i; | |
1595 | ||
357eb46d HH |
1596 | if (pr->qp) |
1597 | netif_napi_del(&pr->napi); | |
1598 | ||
7a291083 JBT |
1599 | ret = ehea_destroy_qp(pr->qp); |
1600 | ||
1601 | if (!ret) { | |
1602 | ehea_destroy_cq(pr->send_cq); | |
1603 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1604 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1605 | |
1606 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1607 | if (pr->rq1_skba.arr[i]) | |
1608 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1609 | ||
1610 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1611 | if (pr->rq2_skba.arr[i]) | |
1612 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1613 | ||
1614 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1615 | if (pr->rq3_skba.arr[i]) | |
1616 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1617 | ||
1618 | for (i = 0; i < pr->sq_skba.len; i++) | |
1619 | if (pr->sq_skba.arr[i]) | |
1620 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1621 | ||
1622 | vfree(pr->rq1_skba.arr); | |
1623 | vfree(pr->rq2_skba.arr); | |
1624 | vfree(pr->rq3_skba.arr); | |
1625 | vfree(pr->sq_skba.arr); | |
1626 | ret = ehea_rem_smrs(pr); | |
1627 | } | |
1628 | return ret; | |
1629 | } | |
1630 | ||
13946f5e AB |
1631 | static void write_swqe2_immediate(struct sk_buff *skb, struct ehea_swqe *swqe, |
1632 | u32 lkey) | |
7a291083 | 1633 | { |
e743d313 | 1634 | int skb_data_size = skb_headlen(skb); |
7a291083 JBT |
1635 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; |
1636 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
13946f5e AB |
1637 | unsigned int immediate_len = SWQE2_MAX_IMM; |
1638 | ||
1639 | swqe->descriptors = 0; | |
7a291083 | 1640 | |
13946f5e AB |
1641 | if (skb_is_gso(skb)) { |
1642 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1643 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1644 | /* | |
1645 | * For TSO packets we only copy the headers into the | |
1646 | * immediate area. | |
1647 | */ | |
1648 | immediate_len = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); | |
1649 | } | |
7a291083 | 1650 | |
13946f5e AB |
1651 | if (skb_is_gso(skb) || skb_data_size >= SWQE2_MAX_IMM) { |
1652 | skb_copy_from_linear_data(skb, imm_data, immediate_len); | |
1653 | swqe->immediate_data_length = immediate_len; | |
7a291083 | 1654 | |
13946f5e | 1655 | if (skb_data_size > immediate_len) { |
7a291083 | 1656 | sg1entry->l_key = lkey; |
13946f5e | 1657 | sg1entry->len = skb_data_size - immediate_len; |
44a5b3d5 | 1658 | sg1entry->vaddr = |
13946f5e | 1659 | ehea_map_vaddr(skb->data + immediate_len); |
7a291083 JBT |
1660 | swqe->descriptors++; |
1661 | } | |
1662 | } else { | |
d626f62b | 1663 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1664 | swqe->immediate_data_length = skb_data_size; |
1665 | } | |
1666 | } | |
1667 | ||
1668 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1669 | struct ehea_swqe *swqe, u32 lkey) | |
1670 | { | |
1671 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1672 | skb_frag_t *frag; | |
1673 | int nfrags, sg1entry_contains_frag_data, i; | |
7a291083 JBT |
1674 | |
1675 | nfrags = skb_shinfo(skb)->nr_frags; | |
1676 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
508d2b5d | 1677 | sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list; |
7a291083 JBT |
1678 | sg1entry_contains_frag_data = 0; |
1679 | ||
13946f5e | 1680 | write_swqe2_immediate(skb, swqe, lkey); |
7a291083 JBT |
1681 | |
1682 | /* write descriptors */ | |
1683 | if (nfrags > 0) { | |
1684 | if (swqe->descriptors == 0) { | |
1685 | /* sg1entry not yet used */ | |
1686 | frag = &skb_shinfo(skb)->frags[0]; | |
1687 | ||
1688 | /* copy sg1entry data */ | |
1689 | sg1entry->l_key = lkey; | |
9e903e08 | 1690 | sg1entry->len = skb_frag_size(frag); |
44a5b3d5 | 1691 | sg1entry->vaddr = |
618c4a0a | 1692 | ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1693 | swqe->descriptors++; |
1694 | sg1entry_contains_frag_data = 1; | |
1695 | } | |
1696 | ||
1697 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1698 | ||
1699 | frag = &skb_shinfo(skb)->frags[i]; | |
1700 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1701 | ||
1702 | sgentry->l_key = lkey; | |
0110bba5 | 1703 | sgentry->len = skb_frag_size(frag); |
618c4a0a | 1704 | sgentry->vaddr = ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1705 | swqe->descriptors++; |
1706 | } | |
1707 | } | |
1708 | } | |
1709 | ||
1710 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1711 | { | |
1712 | int ret = 0; | |
1713 | u64 hret; | |
1714 | u8 reg_type; | |
1715 | ||
1716 | /* De/Register untagged packets */ | |
1717 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1718 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1719 | port->logical_port_id, | |
1720 | reg_type, port->mac_addr, 0, hcallid); | |
1721 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1722 | pr_err("%sregistering bc address failed (tagged)\n", |
1723 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1724 | ret = -EIO; |
1725 | goto out_herr; | |
1726 | } | |
1727 | ||
1728 | /* De/Register VLAN packets */ | |
1729 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1730 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1731 | port->logical_port_id, | |
1732 | reg_type, port->mac_addr, 0, hcallid); | |
1733 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1734 | pr_err("%sregistering bc address failed (vlan)\n", |
1735 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1736 | ret = -EIO; |
1737 | } | |
1738 | out_herr: | |
1739 | return ret; | |
1740 | } | |
1741 | ||
1742 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1743 | { | |
1744 | struct ehea_port *port = netdev_priv(dev); | |
1745 | struct sockaddr *mac_addr = sa; | |
1746 | struct hcp_ehea_port_cb0 *cb0; | |
1747 | int ret; | |
1748 | u64 hret; | |
1749 | ||
1750 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1751 | ret = -EADDRNOTAVAIL; | |
1752 | goto out; | |
1753 | } | |
1754 | ||
3faf2693 | 1755 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1756 | if (!cb0) { |
8c4877a4 | 1757 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1758 | ret = -ENOMEM; |
1759 | goto out; | |
1760 | } | |
1761 | ||
1762 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1763 | ||
1764 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1765 | ||
1766 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1767 | port->logical_port_id, H_PORT_CB0, | |
1768 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1769 | if (hret != H_SUCCESS) { | |
1770 | ret = -EIO; | |
1771 | goto out_free; | |
1772 | } | |
1773 | ||
1774 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1775 | ||
1776 | /* Deregister old MAC in pHYP */ | |
00aaea2f JBT |
1777 | if (port->state == EHEA_PORT_UP) { |
1778 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1779 | if (ret) | |
1780 | goto out_upregs; | |
1781 | } | |
7a291083 JBT |
1782 | |
1783 | port->mac_addr = cb0->port_mac_addr << 16; | |
1784 | ||
1785 | /* Register new MAC in pHYP */ | |
00aaea2f JBT |
1786 | if (port->state == EHEA_PORT_UP) { |
1787 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1788 | if (ret) | |
1789 | goto out_upregs; | |
1790 | } | |
7a291083 JBT |
1791 | |
1792 | ret = 0; | |
21eee2dd TK |
1793 | |
1794 | out_upregs: | |
1795 | ehea_update_bcmc_registrations(); | |
7a291083 | 1796 | out_free: |
3faf2693 | 1797 | free_page((unsigned long)cb0); |
7a291083 JBT |
1798 | out: |
1799 | return ret; | |
1800 | } | |
1801 | ||
1802 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1803 | { | |
7674a588 | 1804 | if (hret == H_AUTHORITY) |
8c4877a4 JP |
1805 | pr_info("Hypervisor denied %sabling promiscuous mode\n", |
1806 | enable == 1 ? "en" : "dis"); | |
7674a588 | 1807 | else |
8c4877a4 JP |
1808 | pr_err("failed %sabling promiscuous mode\n", |
1809 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1810 | } |
1811 | ||
1812 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1813 | { | |
1814 | struct ehea_port *port = netdev_priv(dev); | |
1815 | struct hcp_ehea_port_cb7 *cb7; | |
1816 | u64 hret; | |
1817 | ||
aa3bc6c6 | 1818 | if (enable == port->promisc) |
7a291083 JBT |
1819 | return; |
1820 | ||
3faf2693 | 1821 | cb7 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 | 1822 | if (!cb7) { |
8c4877a4 | 1823 | pr_err("no mem for cb7\n"); |
7a291083 JBT |
1824 | goto out; |
1825 | } | |
1826 | ||
1827 | /* Modify Pxs_DUCQPN in CB7 */ | |
1828 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1829 | ||
1830 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1831 | port->logical_port_id, | |
1832 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1833 | if (hret) { | |
1834 | ehea_promiscuous_error(hret, enable); | |
1835 | goto out; | |
1836 | } | |
1837 | ||
1838 | port->promisc = enable; | |
1839 | out: | |
3faf2693 | 1840 | free_page((unsigned long)cb7); |
7a291083 JBT |
1841 | } |
1842 | ||
1843 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1844 | u32 hcallid) | |
1845 | { | |
1846 | u64 hret; | |
1847 | u8 reg_type; | |
1848 | ||
5d384574 TLSC |
1849 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_UNTAGGED; |
1850 | if (mc_mac_addr == 0) | |
1851 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1852 | |
1853 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1854 | port->logical_port_id, | |
1855 | reg_type, mc_mac_addr, 0, hcallid); | |
1856 | if (hret) | |
1857 | goto out; | |
1858 | ||
5d384574 TLSC |
1859 | reg_type = EHEA_BCMC_MULTICAST | EHEA_BCMC_VLANID_ALL; |
1860 | if (mc_mac_addr == 0) | |
1861 | reg_type |= EHEA_BCMC_SCOPE_ALL; | |
7a291083 JBT |
1862 | |
1863 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1864 | port->logical_port_id, | |
1865 | reg_type, mc_mac_addr, 0, hcallid); | |
1866 | out: | |
1867 | return hret; | |
1868 | } | |
1869 | ||
1870 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1871 | { | |
1872 | struct ehea_port *port = netdev_priv(dev); | |
1873 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1874 | struct list_head *pos; | |
1875 | struct list_head *temp; | |
1876 | int ret = 0; | |
1877 | u64 hret; | |
1878 | ||
1879 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1880 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1881 | ||
1882 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1883 | H_DEREG_BCMC); | |
1884 | if (hret) { | |
8c4877a4 | 1885 | pr_err("failed deregistering mcast MAC\n"); |
7a291083 JBT |
1886 | ret = -EIO; |
1887 | } | |
1888 | ||
1889 | list_del(pos); | |
1890 | kfree(mc_entry); | |
1891 | } | |
1892 | return ret; | |
1893 | } | |
1894 | ||
1895 | static void ehea_allmulti(struct net_device *dev, int enable) | |
1896 | { | |
1897 | struct ehea_port *port = netdev_priv(dev); | |
1898 | u64 hret; | |
1899 | ||
1900 | if (!port->allmulti) { | |
1901 | if (enable) { | |
1902 | /* Enable ALLMULTI */ | |
1903 | ehea_drop_multicast_list(dev); | |
1904 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
1905 | if (!hret) | |
1906 | port->allmulti = 1; | |
1907 | else | |
8c4877a4 JP |
1908 | netdev_err(dev, |
1909 | "failed enabling IFF_ALLMULTI\n"); | |
7a291083 | 1910 | } |
5d384574 | 1911 | } else { |
7a291083 JBT |
1912 | if (!enable) { |
1913 | /* Disable ALLMULTI */ | |
1914 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
1915 | if (!hret) | |
1916 | port->allmulti = 0; | |
1917 | else | |
8c4877a4 JP |
1918 | netdev_err(dev, |
1919 | "failed disabling IFF_ALLMULTI\n"); | |
7a291083 | 1920 | } |
5d384574 | 1921 | } |
7a291083 JBT |
1922 | } |
1923 | ||
508d2b5d | 1924 | static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) |
7a291083 JBT |
1925 | { |
1926 | struct ehea_mc_list *ehea_mcl_entry; | |
1927 | u64 hret; | |
1928 | ||
1e1675cc | 1929 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
b2adaca9 | 1930 | if (!ehea_mcl_entry) |
7a291083 | 1931 | return; |
7a291083 JBT |
1932 | |
1933 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
1934 | ||
1935 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
1936 | ||
1937 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
1938 | H_REG_BCMC); | |
1939 | if (!hret) | |
1940 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
1941 | else { | |
8c4877a4 | 1942 | pr_err("failed registering mcast MAC\n"); |
7a291083 JBT |
1943 | kfree(ehea_mcl_entry); |
1944 | } | |
1945 | } | |
1946 | ||
1947 | static void ehea_set_multicast_list(struct net_device *dev) | |
1948 | { | |
1949 | struct ehea_port *port = netdev_priv(dev); | |
22bedad3 | 1950 | struct netdev_hw_addr *ha; |
48e2f183 | 1951 | int ret; |
7a291083 | 1952 | |
47d59d01 | 1953 | ehea_promiscuous(dev, !!(dev->flags & IFF_PROMISC)); |
7a291083 JBT |
1954 | |
1955 | if (dev->flags & IFF_ALLMULTI) { | |
1956 | ehea_allmulti(dev, 1); | |
21eee2dd | 1957 | goto out; |
7a291083 JBT |
1958 | } |
1959 | ehea_allmulti(dev, 0); | |
1960 | ||
4cd24eaf | 1961 | if (!netdev_mc_empty(dev)) { |
7a291083 JBT |
1962 | ret = ehea_drop_multicast_list(dev); |
1963 | if (ret) { | |
1964 | /* Dropping the current multicast list failed. | |
1965 | * Enabling ALL_MULTI is the best we can do. | |
1966 | */ | |
1967 | ehea_allmulti(dev, 1); | |
1968 | } | |
1969 | ||
4cd24eaf | 1970 | if (netdev_mc_count(dev) > port->adapter->max_mc_mac) { |
8c4877a4 JP |
1971 | pr_info("Mcast registration limit reached (0x%llx). Use ALLMULTI!\n", |
1972 | port->adapter->max_mc_mac); | |
7a291083 JBT |
1973 | goto out; |
1974 | } | |
1975 | ||
22bedad3 JP |
1976 | netdev_for_each_mc_addr(ha, dev) |
1977 | ehea_add_multicast_entry(port, ha->addr); | |
508d2b5d | 1978 | |
7a291083 JBT |
1979 | } |
1980 | out: | |
21eee2dd | 1981 | ehea_update_bcmc_registrations(); |
7a291083 JBT |
1982 | } |
1983 | ||
1984 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
1985 | { | |
1986 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
1987 | return -EINVAL; | |
1988 | dev->mtu = new_mtu; | |
1989 | return 0; | |
1990 | } | |
1991 | ||
d695c335 | 1992 | static void xmit_common(struct sk_buff *skb, struct ehea_swqe *swqe) |
7a291083 | 1993 | { |
d695c335 | 1994 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT | EHEA_SWQE_CRC; |
d1d25aab | 1995 | |
d695c335 AB |
1996 | if (skb->protocol != htons(ETH_P_IP)) |
1997 | return; | |
7a291083 | 1998 | |
d695c335 AB |
1999 | if (skb->ip_summed == CHECKSUM_PARTIAL) |
2000 | swqe->tx_control |= EHEA_SWQE_IP_CHECKSUM; | |
7a291083 | 2001 | |
d695c335 AB |
2002 | swqe->ip_start = skb_network_offset(skb); |
2003 | swqe->ip_end = swqe->ip_start + ip_hdrlen(skb) - 1; | |
7a291083 | 2004 | |
d695c335 AB |
2005 | switch (ip_hdr(skb)->protocol) { |
2006 | case IPPROTO_UDP: | |
2007 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2008 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
7a291083 | 2009 | |
d695c335 AB |
2010 | swqe->tcp_offset = swqe->ip_end + 1 + |
2011 | offsetof(struct udphdr, check); | |
d695c335 AB |
2012 | break; |
2013 | ||
2014 | case IPPROTO_TCP: | |
2015 | if (skb->ip_summed == CHECKSUM_PARTIAL) | |
2016 | swqe->tx_control |= EHEA_SWQE_TCP_CHECKSUM; | |
2017 | ||
2018 | swqe->tcp_offset = swqe->ip_end + 1 + | |
2019 | offsetof(struct tcphdr, check); | |
d695c335 | 2020 | break; |
7a291083 | 2021 | } |
d695c335 AB |
2022 | } |
2023 | ||
2024 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
2025 | struct ehea_swqe *swqe, u32 lkey) | |
2026 | { | |
2027 | swqe->tx_control |= EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2028 | ||
2029 | xmit_common(skb, swqe); | |
7a291083 JBT |
2030 | |
2031 | write_swqe2_data(skb, dev, swqe, lkey); | |
2032 | } | |
2033 | ||
2034 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
2035 | struct ehea_swqe *swqe) | |
2036 | { | |
7a291083 | 2037 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; |
7a291083 | 2038 | |
d695c335 | 2039 | xmit_common(skb, swqe); |
d1d25aab | 2040 | |
30e2e90b | 2041 | if (!skb->data_len) |
d626f62b | 2042 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
30e2e90b AB |
2043 | else |
2044 | skb_copy_bits(skb, 0, imm_data, skb->len); | |
d695c335 | 2045 | |
7a291083 JBT |
2046 | swqe->immediate_data_length = skb->len; |
2047 | dev_kfree_skb(skb); | |
2048 | } | |
2049 | ||
2050 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2051 | { | |
2052 | struct ehea_port *port = netdev_priv(dev); | |
2053 | struct ehea_swqe *swqe; | |
7a291083 JBT |
2054 | u32 lkey; |
2055 | int swqe_index; | |
18604c54 | 2056 | struct ehea_port_res *pr; |
b9564468 | 2057 | struct netdev_queue *txq; |
18604c54 | 2058 | |
b9564468 AB |
2059 | pr = &port->port_res[skb_get_queue_mapping(skb)]; |
2060 | txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); | |
18604c54 | 2061 | |
7a291083 JBT |
2062 | swqe = ehea_get_swqe(pr->qp, &swqe_index); |
2063 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
2064 | atomic_dec(&pr->swqe_avail); | |
2065 | ||
e5ccd961 ED |
2066 | if (vlan_tx_tag_present(skb)) { |
2067 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; | |
2068 | swqe->vlan_tag = vlan_tx_tag_get(skb); | |
2069 | } | |
2070 | ||
ce45b873 BL |
2071 | pr->tx_packets++; |
2072 | pr->tx_bytes += skb->len; | |
2073 | ||
7a291083 JBT |
2074 | if (skb->len <= SWQE3_MAX_IMM) { |
2075 | u32 sig_iv = port->sig_comp_iv; | |
2076 | u32 swqe_num = pr->swqe_id_counter; | |
2077 | ehea_xmit3(skb, dev, swqe); | |
2078 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
2079 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
2080 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
2081 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
2082 | sig_iv); | |
2083 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
2084 | pr->swqe_ll_count = 0; | |
2085 | } else | |
2086 | pr->swqe_ll_count += 1; | |
2087 | } else { | |
2088 | swqe->wr_id = | |
2089 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
2090 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 2091 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
2092 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
2093 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
2094 | ||
2095 | pr->sq_skba.index++; | |
2096 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
2097 | ||
2098 | lkey = pr->send_mr.lkey; | |
2099 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 2100 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
2101 | } |
2102 | pr->swqe_id_counter += 1; | |
2103 | ||
8c4877a4 JP |
2104 | netif_info(port, tx_queued, dev, |
2105 | "post swqe on QP %d\n", pr->qp->init_attr.qp_nr); | |
2106 | if (netif_msg_tx_queued(port)) | |
bff0a55f | 2107 | ehea_dump(swqe, 512, "swqe"); |
7a291083 | 2108 | |
2c69448b | 2109 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
b9564468 | 2110 | netif_tx_stop_queue(txq); |
2c69448b JBT |
2111 | swqe->tx_control |= EHEA_SWQE_PURGE; |
2112 | } | |
44c82152 | 2113 | |
7a291083 | 2114 | ehea_post_swqe(pr->qp, swqe); |
7a291083 JBT |
2115 | |
2116 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
b9564468 AB |
2117 | pr->p_stats.queue_stopped++; |
2118 | netif_tx_stop_queue(txq); | |
7a291083 | 2119 | } |
2c69448b | 2120 | |
7a291083 JBT |
2121 | return NETDEV_TX_OK; |
2122 | } | |
2123 | ||
80d5c368 | 2124 | static int ehea_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) |
7a291083 JBT |
2125 | { |
2126 | struct ehea_port *port = netdev_priv(dev); | |
2127 | struct ehea_adapter *adapter = port->adapter; | |
2128 | struct hcp_ehea_port_cb1 *cb1; | |
2129 | int index; | |
2130 | u64 hret; | |
8e586137 | 2131 | int err = 0; |
7a291083 | 2132 | |
3faf2693 | 2133 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2134 | if (!cb1) { |
8c4877a4 | 2135 | pr_err("no mem for cb1\n"); |
8e586137 | 2136 | err = -ENOMEM; |
7a291083 JBT |
2137 | goto out; |
2138 | } | |
2139 | ||
2140 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2141 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2142 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2143 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2144 | err = -EINVAL; |
7a291083 JBT |
2145 | goto out; |
2146 | } | |
2147 | ||
2148 | index = (vid / 64); | |
dec590c1 | 2149 | cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2150 | |
2151 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2152 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2153 | if (hret != H_SUCCESS) { |
8c4877a4 | 2154 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2155 | err = -EINVAL; |
2156 | } | |
7a291083 | 2157 | out: |
3faf2693 | 2158 | free_page((unsigned long)cb1); |
8e586137 | 2159 | return err; |
7a291083 JBT |
2160 | } |
2161 | ||
80d5c368 | 2162 | static int ehea_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) |
7a291083 JBT |
2163 | { |
2164 | struct ehea_port *port = netdev_priv(dev); | |
2165 | struct ehea_adapter *adapter = port->adapter; | |
2166 | struct hcp_ehea_port_cb1 *cb1; | |
2167 | int index; | |
2168 | u64 hret; | |
8e586137 | 2169 | int err = 0; |
7a291083 | 2170 | |
3faf2693 | 2171 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2172 | if (!cb1) { |
8c4877a4 | 2173 | pr_err("no mem for cb1\n"); |
8e586137 | 2174 | err = -ENOMEM; |
7a291083 JBT |
2175 | goto out; |
2176 | } | |
2177 | ||
2178 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2179 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2180 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2181 | pr_err("query_ehea_port failed\n"); |
8e586137 | 2182 | err = -EINVAL; |
7a291083 JBT |
2183 | goto out; |
2184 | } | |
2185 | ||
2186 | index = (vid / 64); | |
dec590c1 | 2187 | cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2188 | |
2189 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2190 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
8e586137 | 2191 | if (hret != H_SUCCESS) { |
8c4877a4 | 2192 | pr_err("modify_ehea_port failed\n"); |
8e586137 JP |
2193 | err = -EINVAL; |
2194 | } | |
7a291083 | 2195 | out: |
3faf2693 | 2196 | free_page((unsigned long)cb1); |
8e586137 | 2197 | return err; |
7a291083 JBT |
2198 | } |
2199 | ||
1886e5d2 | 2200 | static int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) |
7a291083 JBT |
2201 | { |
2202 | int ret = -EIO; | |
2203 | u64 hret; | |
2204 | u16 dummy16 = 0; | |
2205 | u64 dummy64 = 0; | |
508d2b5d | 2206 | struct hcp_modify_qp_cb0 *cb0; |
7a291083 | 2207 | |
3faf2693 | 2208 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2209 | if (!cb0) { |
2210 | ret = -ENOMEM; | |
2211 | goto out; | |
2212 | } | |
2213 | ||
2214 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2215 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2216 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2217 | pr_err("query_ehea_qp failed (1)\n"); |
7a291083 JBT |
2218 | goto out; |
2219 | } | |
2220 | ||
2221 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2222 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2223 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2224 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2225 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2226 | pr_err("modify_ehea_qp failed (1)\n"); |
7a291083 JBT |
2227 | goto out; |
2228 | } | |
2229 | ||
2230 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2231 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2232 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2233 | pr_err("query_ehea_qp failed (2)\n"); |
7a291083 JBT |
2234 | goto out; |
2235 | } | |
2236 | ||
2237 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2238 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2239 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2240 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2241 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2242 | pr_err("modify_ehea_qp failed (2)\n"); |
7a291083 JBT |
2243 | goto out; |
2244 | } | |
2245 | ||
2246 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2247 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2248 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2249 | pr_err("query_ehea_qp failed (3)\n"); |
7a291083 JBT |
2250 | goto out; |
2251 | } | |
2252 | ||
2253 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2254 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2255 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2256 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2257 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2258 | pr_err("modify_ehea_qp failed (3)\n"); |
7a291083 JBT |
2259 | goto out; |
2260 | } | |
2261 | ||
2262 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2263 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2264 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2265 | pr_err("query_ehea_qp failed (4)\n"); |
7a291083 JBT |
2266 | goto out; |
2267 | } | |
2268 | ||
2269 | ret = 0; | |
2270 | out: | |
3faf2693 | 2271 | free_page((unsigned long)cb0); |
7a291083 JBT |
2272 | return ret; |
2273 | } | |
2274 | ||
723f28e4 | 2275 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps) |
7a291083 JBT |
2276 | { |
2277 | int ret, i; | |
2278 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2279 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2280 | ||
2281 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2282 | EHEA_MAX_ENTRIES_EQ, 1); | |
2283 | if (!port->qp_eq) { | |
2284 | ret = -EINVAL; | |
8c4877a4 | 2285 | pr_err("ehea_create_eq failed (qp_eq)\n"); |
7a291083 JBT |
2286 | goto out_kill_eq; |
2287 | } | |
2288 | ||
2289 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2290 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2291 | pr_cfg.max_entries_sq = sq_entries; |
2292 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2293 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2294 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2295 | ||
2296 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2297 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2298 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2299 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2300 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2301 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2302 | ||
2303 | for (i = 0; i < def_qps; i++) { | |
2304 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2305 | if (ret) | |
2306 | goto out_clean_pr; | |
2307 | } | |
723f28e4 | 2308 | for (i = def_qps; i < def_qps; i++) { |
7a291083 JBT |
2309 | ret = ehea_init_port_res(port, &port->port_res[i], |
2310 | &pr_cfg_small_rx, i); | |
2311 | if (ret) | |
2312 | goto out_clean_pr; | |
2313 | } | |
2314 | ||
2315 | return 0; | |
2316 | ||
2317 | out_clean_pr: | |
2318 | while (--i >= 0) | |
2319 | ehea_clean_portres(port, &port->port_res[i]); | |
2320 | ||
2321 | out_kill_eq: | |
2322 | ehea_destroy_eq(port->qp_eq); | |
2323 | return ret; | |
2324 | } | |
2325 | ||
2326 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2327 | { | |
2328 | int ret = 0; | |
2329 | int i; | |
2330 | ||
723f28e4 | 2331 | for (i = 0; i < port->num_def_qps; i++) |
7a291083 JBT |
2332 | ret |= ehea_clean_portres(port, &port->port_res[i]); |
2333 | ||
2334 | ret |= ehea_destroy_eq(port->qp_eq); | |
2335 | ||
2336 | return ret; | |
2337 | } | |
2338 | ||
35cf2e2e | 2339 | static void ehea_remove_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2340 | { |
35cf2e2e TK |
2341 | if (adapter->active_ports) |
2342 | return; | |
1211bb6d TK |
2343 | |
2344 | ehea_rem_mr(&adapter->mr); | |
2345 | } | |
2346 | ||
35cf2e2e | 2347 | static int ehea_add_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2348 | { |
35cf2e2e TK |
2349 | if (adapter->active_ports) |
2350 | return 0; | |
1211bb6d TK |
2351 | |
2352 | return ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2353 | } | |
2354 | ||
7a291083 JBT |
2355 | static int ehea_up(struct net_device *dev) |
2356 | { | |
2357 | int ret, i; | |
2358 | struct ehea_port *port = netdev_priv(dev); | |
7a291083 JBT |
2359 | |
2360 | if (port->state == EHEA_PORT_UP) | |
2361 | return 0; | |
2362 | ||
723f28e4 | 2363 | ret = ehea_port_res_setup(port, port->num_def_qps); |
7a291083 | 2364 | if (ret) { |
8c4877a4 | 2365 | netdev_err(dev, "port_res_failed\n"); |
7a291083 JBT |
2366 | goto out; |
2367 | } | |
2368 | ||
2369 | /* Set default QP for this port */ | |
2370 | ret = ehea_configure_port(port); | |
2371 | if (ret) { | |
8c4877a4 | 2372 | netdev_err(dev, "ehea_configure_port failed. ret:%d\n", ret); |
7a291083 JBT |
2373 | goto out_clean_pr; |
2374 | } | |
2375 | ||
7a291083 JBT |
2376 | ret = ehea_reg_interrupts(dev); |
2377 | if (ret) { | |
8c4877a4 | 2378 | netdev_err(dev, "reg_interrupts failed. ret:%d\n", ret); |
f9e29228 | 2379 | goto out_clean_pr; |
7a291083 JBT |
2380 | } |
2381 | ||
723f28e4 | 2382 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2383 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); |
2384 | if (ret) { | |
8c4877a4 | 2385 | netdev_err(dev, "activate_qp failed\n"); |
7a291083 JBT |
2386 | goto out_free_irqs; |
2387 | } | |
2388 | } | |
2389 | ||
508d2b5d | 2390 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2391 | ret = ehea_fill_port_res(&port->port_res[i]); |
2392 | if (ret) { | |
8c4877a4 | 2393 | netdev_err(dev, "out_free_irqs\n"); |
7a291083 JBT |
2394 | goto out_free_irqs; |
2395 | } | |
2396 | } | |
2397 | ||
21eee2dd TK |
2398 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); |
2399 | if (ret) { | |
2400 | ret = -EIO; | |
2401 | goto out_free_irqs; | |
2402 | } | |
2403 | ||
7a291083 | 2404 | port->state = EHEA_PORT_UP; |
21eee2dd TK |
2405 | |
2406 | ret = 0; | |
7a291083 JBT |
2407 | goto out; |
2408 | ||
2409 | out_free_irqs: | |
2410 | ehea_free_interrupts(dev); | |
2411 | ||
7a291083 JBT |
2412 | out_clean_pr: |
2413 | ehea_clean_all_portres(port); | |
2414 | out: | |
44c82152 | 2415 | if (ret) |
8c4877a4 | 2416 | netdev_info(dev, "Failed starting. ret=%i\n", ret); |
44c82152 | 2417 | |
21eee2dd | 2418 | ehea_update_bcmc_registrations(); |
21eee2dd | 2419 | ehea_update_firmware_handles(); |
21eee2dd | 2420 | |
7a291083 JBT |
2421 | return ret; |
2422 | } | |
2423 | ||
bea3348e SH |
2424 | static void port_napi_disable(struct ehea_port *port) |
2425 | { | |
2426 | int i; | |
2427 | ||
723f28e4 | 2428 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2429 | napi_disable(&port->port_res[i].napi); |
2430 | } | |
2431 | ||
2432 | static void port_napi_enable(struct ehea_port *port) | |
2433 | { | |
2434 | int i; | |
2435 | ||
723f28e4 | 2436 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2437 | napi_enable(&port->port_res[i].napi); |
2438 | } | |
2439 | ||
7a291083 JBT |
2440 | static int ehea_open(struct net_device *dev) |
2441 | { | |
2442 | int ret; | |
2443 | struct ehea_port *port = netdev_priv(dev); | |
2444 | ||
a5af6ad3 | 2445 | mutex_lock(&port->port_lock); |
7a291083 | 2446 | |
8c4877a4 | 2447 | netif_info(port, ifup, dev, "enabling port\n"); |
7a291083 JBT |
2448 | |
2449 | ret = ehea_up(dev); | |
bea3348e SH |
2450 | if (!ret) { |
2451 | port_napi_enable(port); | |
b9564468 | 2452 | netif_tx_start_all_queues(dev); |
bea3348e | 2453 | } |
7a291083 | 2454 | |
a5af6ad3 | 2455 | mutex_unlock(&port->port_lock); |
67c170a2 AB |
2456 | schedule_delayed_work(&port->stats_work, |
2457 | round_jiffies_relative(msecs_to_jiffies(1000))); | |
7a291083 JBT |
2458 | |
2459 | return ret; | |
2460 | } | |
2461 | ||
2462 | static int ehea_down(struct net_device *dev) | |
2463 | { | |
bea3348e | 2464 | int ret; |
7a291083 JBT |
2465 | struct ehea_port *port = netdev_priv(dev); |
2466 | ||
2467 | if (port->state == EHEA_PORT_DOWN) | |
2468 | return 0; | |
2469 | ||
2470 | ehea_drop_multicast_list(dev); | |
5d384574 | 2471 | ehea_allmulti(dev, 0); |
21eee2dd TK |
2472 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); |
2473 | ||
7a291083 JBT |
2474 | ehea_free_interrupts(dev); |
2475 | ||
7a291083 | 2476 | port->state = EHEA_PORT_DOWN; |
44c82152 | 2477 | |
21eee2dd | 2478 | ehea_update_bcmc_registrations(); |
21eee2dd | 2479 | |
44c82152 TK |
2480 | ret = ehea_clean_all_portres(port); |
2481 | if (ret) | |
8c4877a4 | 2482 | netdev_info(dev, "Failed freeing resources. ret=%i\n", ret); |
44c82152 | 2483 | |
21eee2dd | 2484 | ehea_update_firmware_handles(); |
21eee2dd | 2485 | |
7a291083 JBT |
2486 | return ret; |
2487 | } | |
2488 | ||
2489 | static int ehea_stop(struct net_device *dev) | |
2490 | { | |
2491 | int ret; | |
2492 | struct ehea_port *port = netdev_priv(dev); | |
2493 | ||
8c4877a4 | 2494 | netif_info(port, ifdown, dev, "disabling port\n"); |
7a291083 | 2495 | |
2f69ae01 | 2496 | set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
4bb073c0 | 2497 | cancel_work_sync(&port->reset_task); |
2aefcad8 | 2498 | cancel_delayed_work_sync(&port->stats_work); |
a5af6ad3 | 2499 | mutex_lock(&port->port_lock); |
b9564468 | 2500 | netif_tx_stop_all_queues(dev); |
0173b793 | 2501 | port_napi_disable(port); |
7a291083 | 2502 | ret = ehea_down(dev); |
a5af6ad3 | 2503 | mutex_unlock(&port->port_lock); |
2f69ae01 | 2504 | clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
7a291083 JBT |
2505 | return ret; |
2506 | } | |
2507 | ||
22559c5d | 2508 | static void ehea_purge_sq(struct ehea_qp *orig_qp) |
2c69448b JBT |
2509 | { |
2510 | struct ehea_qp qp = *orig_qp; | |
2511 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2512 | struct ehea_swqe *swqe; | |
2513 | int wqe_index; | |
2514 | int i; | |
2515 | ||
2516 | for (i = 0; i < init_attr->act_nr_send_wqes; i++) { | |
2517 | swqe = ehea_get_swqe(&qp, &wqe_index); | |
2518 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2519 | } | |
2520 | } | |
2521 | ||
22559c5d | 2522 | static void ehea_flush_sq(struct ehea_port *port) |
44fb3126 TK |
2523 | { |
2524 | int i; | |
2525 | ||
723f28e4 | 2526 | for (i = 0; i < port->num_def_qps; i++) { |
44fb3126 TK |
2527 | struct ehea_port_res *pr = &port->port_res[i]; |
2528 | int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count; | |
5b27d427 BL |
2529 | int ret; |
2530 | ||
2531 | ret = wait_event_timeout(port->swqe_avail_wq, | |
2532 | atomic_read(&pr->swqe_avail) >= swqe_max, | |
2533 | msecs_to_jiffies(100)); | |
2534 | ||
2535 | if (!ret) { | |
8c4877a4 | 2536 | pr_err("WARNING: sq not flushed completely\n"); |
5b27d427 | 2537 | break; |
44fb3126 TK |
2538 | } |
2539 | } | |
2540 | } | |
2541 | ||
1886e5d2 | 2542 | static int ehea_stop_qps(struct net_device *dev) |
2c69448b JBT |
2543 | { |
2544 | struct ehea_port *port = netdev_priv(dev); | |
2545 | struct ehea_adapter *adapter = port->adapter; | |
508d2b5d | 2546 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2547 | int ret = -EIO; |
2548 | int dret; | |
2549 | int i; | |
2550 | u64 hret; | |
2551 | u64 dummy64 = 0; | |
2552 | u16 dummy16 = 0; | |
2553 | ||
3faf2693 | 2554 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2555 | if (!cb0) { |
2556 | ret = -ENOMEM; | |
2557 | goto out; | |
2558 | } | |
2559 | ||
723f28e4 | 2560 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2561 | struct ehea_port_res *pr = &port->port_res[i]; |
2562 | struct ehea_qp *qp = pr->qp; | |
2563 | ||
2564 | /* Purge send queue */ | |
2565 | ehea_purge_sq(qp); | |
2566 | ||
2567 | /* Disable queue pair */ | |
2568 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2569 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2570 | cb0); | |
2571 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2572 | pr_err("query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2573 | goto out; |
2574 | } | |
2575 | ||
2576 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2577 | cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED; | |
2578 | ||
2579 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2580 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2581 | 1), cb0, &dummy64, | |
2582 | &dummy64, &dummy16, &dummy16); | |
2583 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2584 | pr_err("modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2585 | goto out; |
2586 | } | |
2587 | ||
2588 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2589 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2590 | cb0); | |
2591 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2592 | pr_err("query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2593 | goto out; |
2594 | } | |
2595 | ||
2596 | /* deregister shared memory regions */ | |
2597 | dret = ehea_rem_smrs(pr); | |
2598 | if (dret) { | |
8c4877a4 | 2599 | pr_err("unreg shared memory region failed\n"); |
2c69448b JBT |
2600 | goto out; |
2601 | } | |
2602 | } | |
2603 | ||
2604 | ret = 0; | |
2605 | out: | |
3faf2693 | 2606 | free_page((unsigned long)cb0); |
2c69448b JBT |
2607 | |
2608 | return ret; | |
2609 | } | |
2610 | ||
1886e5d2 | 2611 | static void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr) |
2c69448b JBT |
2612 | { |
2613 | struct ehea_qp qp = *orig_qp; | |
2614 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2615 | struct ehea_rwqe *rwqe; | |
2616 | struct sk_buff **skba_rq2 = pr->rq2_skba.arr; | |
2617 | struct sk_buff **skba_rq3 = pr->rq3_skba.arr; | |
2618 | struct sk_buff *skb; | |
2619 | u32 lkey = pr->recv_mr.lkey; | |
2620 | ||
2621 | ||
2622 | int i; | |
2623 | int index; | |
2624 | ||
2625 | for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) { | |
2626 | rwqe = ehea_get_next_rwqe(&qp, 2); | |
2627 | rwqe->sg_list[0].l_key = lkey; | |
2628 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2629 | skb = skba_rq2[index]; | |
2630 | if (skb) | |
2631 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2632 | } | |
2633 | ||
2634 | for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) { | |
2635 | rwqe = ehea_get_next_rwqe(&qp, 3); | |
2636 | rwqe->sg_list[0].l_key = lkey; | |
2637 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2638 | skb = skba_rq3[index]; | |
2639 | if (skb) | |
2640 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2641 | } | |
2642 | } | |
2643 | ||
1886e5d2 | 2644 | static int ehea_restart_qps(struct net_device *dev) |
2c69448b JBT |
2645 | { |
2646 | struct ehea_port *port = netdev_priv(dev); | |
2647 | struct ehea_adapter *adapter = port->adapter; | |
2648 | int ret = 0; | |
2649 | int i; | |
2650 | ||
508d2b5d | 2651 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2652 | u64 hret; |
2653 | u64 dummy64 = 0; | |
2654 | u16 dummy16 = 0; | |
2655 | ||
3faf2693 | 2656 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2657 | if (!cb0) { |
2658 | ret = -ENOMEM; | |
2659 | goto out; | |
2660 | } | |
2661 | ||
723f28e4 | 2662 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2663 | struct ehea_port_res *pr = &port->port_res[i]; |
2664 | struct ehea_qp *qp = pr->qp; | |
2665 | ||
2666 | ret = ehea_gen_smrs(pr); | |
2667 | if (ret) { | |
8c4877a4 | 2668 | netdev_err(dev, "creation of shared memory regions failed\n"); |
2c69448b JBT |
2669 | goto out; |
2670 | } | |
2671 | ||
2672 | ehea_update_rqs(qp, pr); | |
2673 | ||
2674 | /* Enable queue pair */ | |
2675 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2676 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2677 | cb0); | |
2678 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2679 | netdev_err(dev, "query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2680 | goto out; |
2681 | } | |
2682 | ||
2683 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2684 | cb0->qp_ctl_reg |= H_QP_CR_ENABLED; | |
2685 | ||
2686 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2687 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2688 | 1), cb0, &dummy64, | |
2689 | &dummy64, &dummy16, &dummy16); | |
2690 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2691 | netdev_err(dev, "modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2692 | goto out; |
2693 | } | |
2694 | ||
2695 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2696 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2697 | cb0); | |
2698 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2699 | netdev_err(dev, "query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2700 | goto out; |
2701 | } | |
2702 | ||
2703 | /* refill entire queue */ | |
2704 | ehea_refill_rq1(pr, pr->rq1_skba.index, 0); | |
2705 | ehea_refill_rq2(pr, 0); | |
2706 | ehea_refill_rq3(pr, 0); | |
2707 | } | |
2708 | out: | |
3faf2693 | 2709 | free_page((unsigned long)cb0); |
2c69448b JBT |
2710 | |
2711 | return ret; | |
2712 | } | |
2713 | ||
c4028958 | 2714 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2715 | { |
2716 | int ret; | |
c4028958 DH |
2717 | struct ehea_port *port = |
2718 | container_of(work, struct ehea_port, reset_task); | |
2719 | struct net_device *dev = port->netdev; | |
7a291083 | 2720 | |
099473c1 | 2721 | mutex_lock(&dlpar_mem_lock); |
7a291083 | 2722 | port->resets++; |
a5af6ad3 | 2723 | mutex_lock(&port->port_lock); |
b9564468 | 2724 | netif_tx_disable(dev); |
bea3348e SH |
2725 | |
2726 | port_napi_disable(port); | |
7a291083 | 2727 | |
44c82152 | 2728 | ehea_down(dev); |
7a291083 JBT |
2729 | |
2730 | ret = ehea_up(dev); | |
44c82152 | 2731 | if (ret) |
7a291083 | 2732 | goto out; |
7a291083 | 2733 | |
2c69448b JBT |
2734 | ehea_set_multicast_list(dev); |
2735 | ||
8c4877a4 | 2736 | netif_info(port, timer, dev, "reset successful\n"); |
7a291083 | 2737 | |
bea3348e SH |
2738 | port_napi_enable(port); |
2739 | ||
b9564468 | 2740 | netif_tx_wake_all_queues(dev); |
7a291083 | 2741 | out: |
a5af6ad3 | 2742 | mutex_unlock(&port->port_lock); |
099473c1 | 2743 | mutex_unlock(&dlpar_mem_lock); |
7a291083 JBT |
2744 | } |
2745 | ||
3d6b892b | 2746 | static void ehea_rereg_mrs(void) |
44c82152 TK |
2747 | { |
2748 | int ret, i; | |
2749 | struct ehea_adapter *adapter; | |
2750 | ||
8c4877a4 | 2751 | pr_info("LPAR memory changed - re-initializing driver\n"); |
44c82152 TK |
2752 | |
2753 | list_for_each_entry(adapter, &adapter_list, list) | |
2754 | if (adapter->active_ports) { | |
2755 | /* Shutdown all ports */ | |
2756 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2757 | struct ehea_port *port = adapter->port[i]; | |
a5af6ad3 | 2758 | struct net_device *dev; |
44c82152 | 2759 | |
a5af6ad3 DW |
2760 | if (!port) |
2761 | continue; | |
44c82152 | 2762 | |
a5af6ad3 DW |
2763 | dev = port->netdev; |
2764 | ||
2765 | if (dev->flags & IFF_UP) { | |
2766 | mutex_lock(&port->port_lock); | |
b9564468 | 2767 | netif_tx_disable(dev); |
df39e8ba | 2768 | ehea_flush_sq(port); |
a5af6ad3 DW |
2769 | ret = ehea_stop_qps(dev); |
2770 | if (ret) { | |
2771 | mutex_unlock(&port->port_lock); | |
2772 | goto out; | |
44c82152 | 2773 | } |
a5af6ad3 DW |
2774 | port_napi_disable(port); |
2775 | mutex_unlock(&port->port_lock); | |
44c82152 | 2776 | } |
2928db4c | 2777 | reset_sq_restart_flag(port); |
44c82152 TK |
2778 | } |
2779 | ||
2780 | /* Unregister old memory region */ | |
2781 | ret = ehea_rem_mr(&adapter->mr); | |
2782 | if (ret) { | |
8c4877a4 | 2783 | pr_err("unregister MR failed - driver inoperable!\n"); |
44c82152 TK |
2784 | goto out; |
2785 | } | |
2786 | } | |
2787 | ||
44c82152 TK |
2788 | clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
2789 | ||
2790 | list_for_each_entry(adapter, &adapter_list, list) | |
2791 | if (adapter->active_ports) { | |
2792 | /* Register new memory region */ | |
2793 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2794 | if (ret) { | |
8c4877a4 | 2795 | pr_err("register MR failed - driver inoperable!\n"); |
44c82152 TK |
2796 | goto out; |
2797 | } | |
2798 | ||
2799 | /* Restart all ports */ | |
2800 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2801 | struct ehea_port *port = adapter->port[i]; | |
2802 | ||
2803 | if (port) { | |
2804 | struct net_device *dev = port->netdev; | |
2805 | ||
2806 | if (dev->flags & IFF_UP) { | |
a5af6ad3 | 2807 | mutex_lock(&port->port_lock); |
2c69448b | 2808 | ret = ehea_restart_qps(dev); |
6f4d6dc1 BL |
2809 | if (!ret) { |
2810 | check_sqs(port); | |
2811 | port_napi_enable(port); | |
b9564468 | 2812 | netif_tx_wake_all_queues(dev); |
6f4d6dc1 BL |
2813 | } else { |
2814 | netdev_err(dev, "Unable to restart QPS\n"); | |
2815 | } | |
a5af6ad3 | 2816 | mutex_unlock(&port->port_lock); |
44c82152 TK |
2817 | } |
2818 | } | |
2819 | } | |
2820 | } | |
8c4877a4 | 2821 | pr_info("re-initializing driver complete\n"); |
44c82152 TK |
2822 | out: |
2823 | return; | |
2824 | } | |
2825 | ||
7a291083 JBT |
2826 | static void ehea_tx_watchdog(struct net_device *dev) |
2827 | { | |
2828 | struct ehea_port *port = netdev_priv(dev); | |
2829 | ||
2c69448b JBT |
2830 | if (netif_carrier_ok(dev) && |
2831 | !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) | |
2f69ae01 | 2832 | ehea_schedule_port_reset(port); |
7a291083 JBT |
2833 | } |
2834 | ||
1886e5d2 | 2835 | static int ehea_sense_adapter_attr(struct ehea_adapter *adapter) |
7a291083 JBT |
2836 | { |
2837 | struct hcp_query_ehea *cb; | |
2838 | u64 hret; | |
2839 | int ret; | |
2840 | ||
3faf2693 | 2841 | cb = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2842 | if (!cb) { |
2843 | ret = -ENOMEM; | |
2844 | goto out; | |
2845 | } | |
2846 | ||
2847 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
2848 | ||
2849 | if (hret != H_SUCCESS) { | |
2850 | ret = -EIO; | |
2851 | goto out_herr; | |
2852 | } | |
2853 | ||
7a291083 JBT |
2854 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
2855 | ret = 0; | |
2856 | ||
2857 | out_herr: | |
3faf2693 | 2858 | free_page((unsigned long)cb); |
7a291083 JBT |
2859 | out: |
2860 | return ret; | |
2861 | } | |
2862 | ||
1886e5d2 | 2863 | static int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 2864 | { |
7a291083 | 2865 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
2866 | u64 hret; |
2867 | int ret = 0; | |
7a291083 | 2868 | |
1acf2318 | 2869 | *jumbo = 0; |
7a291083 | 2870 | |
1acf2318 | 2871 | /* (Try to) enable *jumbo frames */ |
3faf2693 | 2872 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2873 | if (!cb4) { |
8c4877a4 | 2874 | pr_err("no mem for cb4\n"); |
1acf2318 JBT |
2875 | ret = -ENOMEM; |
2876 | goto out; | |
7a291083 | 2877 | } else { |
1acf2318 | 2878 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
2879 | port->logical_port_id, |
2880 | H_PORT_CB4, | |
2881 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
2882 | if (hret == H_SUCCESS) { |
2883 | if (cb4->jumbo_frame) | |
1acf2318 | 2884 | *jumbo = 1; |
9c750b7d TK |
2885 | else { |
2886 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
2887 | hret = ehea_h_modify_ehea_port(port->adapter-> |
2888 | handle, | |
9c750b7d | 2889 | port-> |
1acf2318 | 2890 | logical_port_id, |
9c750b7d TK |
2891 | H_PORT_CB4, |
2892 | H_PORT_CB4_JUMBO, | |
2893 | cb4); | |
2894 | if (hret == H_SUCCESS) | |
1acf2318 | 2895 | *jumbo = 1; |
9c750b7d | 2896 | } |
1acf2318 JBT |
2897 | } else |
2898 | ret = -EINVAL; | |
2899 | ||
3faf2693 | 2900 | free_page((unsigned long)cb4); |
7a291083 | 2901 | } |
1acf2318 JBT |
2902 | out: |
2903 | return ret; | |
2904 | } | |
2905 | ||
2906 | static ssize_t ehea_show_port_id(struct device *dev, | |
2907 | struct device_attribute *attr, char *buf) | |
2908 | { | |
2909 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
a8e34fda | 2910 | return sprintf(buf, "%d", port->logical_port_id); |
1acf2318 JBT |
2911 | } |
2912 | ||
2913 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
2914 | NULL); | |
2915 | ||
0297be07 | 2916 | static void logical_port_release(struct device *dev) |
1acf2318 JBT |
2917 | { |
2918 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
61c7a080 | 2919 | of_node_put(port->ofdev.dev.of_node); |
1acf2318 JBT |
2920 | } |
2921 | ||
2922 | static struct device *ehea_register_port(struct ehea_port *port, | |
2923 | struct device_node *dn) | |
2924 | { | |
2925 | int ret; | |
2926 | ||
61c7a080 | 2927 | port->ofdev.dev.of_node = of_node_get(dn); |
6b08f3ae | 2928 | port->ofdev.dev.parent = &port->adapter->ofdev->dev; |
d1dea38d | 2929 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 2930 | |
db1d7bf7 | 2931 | dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++); |
1acf2318 JBT |
2932 | port->ofdev.dev.release = logical_port_release; |
2933 | ||
2934 | ret = of_device_register(&port->ofdev); | |
2935 | if (ret) { | |
8c4877a4 | 2936 | pr_err("failed to register device. ret=%d\n", ret); |
1acf2318 JBT |
2937 | goto out; |
2938 | } | |
2939 | ||
2940 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
d1d25aab | 2941 | if (ret) { |
8c4877a4 | 2942 | pr_err("failed to register attributes, ret=%d\n", ret); |
1acf2318 JBT |
2943 | goto out_unreg_of_dev; |
2944 | } | |
e542aa6b | 2945 | |
1acf2318 JBT |
2946 | return &port->ofdev.dev; |
2947 | ||
2948 | out_unreg_of_dev: | |
2949 | of_device_unregister(&port->ofdev); | |
2950 | out: | |
2951 | return NULL; | |
2952 | } | |
2953 | ||
2954 | static void ehea_unregister_port(struct ehea_port *port) | |
2955 | { | |
2956 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
2957 | of_device_unregister(&port->ofdev); | |
2958 | } | |
2959 | ||
086c1b2c TK |
2960 | static const struct net_device_ops ehea_netdev_ops = { |
2961 | .ndo_open = ehea_open, | |
2962 | .ndo_stop = ehea_stop, | |
2963 | .ndo_start_xmit = ehea_start_xmit, | |
2964 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
2965 | .ndo_poll_controller = ehea_netpoll, | |
2966 | #endif | |
239c562c | 2967 | .ndo_get_stats64 = ehea_get_stats64, |
086c1b2c | 2968 | .ndo_set_mac_address = ehea_set_mac_addr, |
240c102d | 2969 | .ndo_validate_addr = eth_validate_addr, |
afc4b13d | 2970 | .ndo_set_rx_mode = ehea_set_multicast_list, |
086c1b2c | 2971 | .ndo_change_mtu = ehea_change_mtu, |
086c1b2c | 2972 | .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid, |
32e8f9a8 AB |
2973 | .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid, |
2974 | .ndo_tx_timeout = ehea_tx_watchdog, | |
086c1b2c TK |
2975 | }; |
2976 | ||
1886e5d2 | 2977 | static struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, |
1acf2318 JBT |
2978 | u32 logical_port_id, |
2979 | struct device_node *dn) | |
2980 | { | |
2981 | int ret; | |
2982 | struct net_device *dev; | |
2983 | struct ehea_port *port; | |
2984 | struct device *port_dev; | |
2985 | int jumbo; | |
2986 | ||
2987 | /* allocate memory for the port structures */ | |
b9564468 | 2988 | dev = alloc_etherdev_mq(sizeof(struct ehea_port), EHEA_MAX_PORT_RES); |
1acf2318 JBT |
2989 | |
2990 | if (!dev) { | |
1acf2318 JBT |
2991 | ret = -ENOMEM; |
2992 | goto out_err; | |
2993 | } | |
2994 | ||
2995 | port = netdev_priv(dev); | |
2996 | ||
a5af6ad3 | 2997 | mutex_init(&port->port_lock); |
1acf2318 JBT |
2998 | port->state = EHEA_PORT_DOWN; |
2999 | port->sig_comp_iv = sq_entries / 10; | |
3000 | ||
3001 | port->adapter = adapter; | |
3002 | port->netdev = dev; | |
3003 | port->logical_port_id = logical_port_id; | |
3004 | ||
3005 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
3006 | ||
3007 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
3008 | if (!port->mc_list) { | |
3009 | ret = -ENOMEM; | |
3010 | goto out_free_ethdev; | |
3011 | } | |
3012 | ||
3013 | INIT_LIST_HEAD(&port->mc_list->list); | |
3014 | ||
3015 | ret = ehea_sense_port_attr(port); | |
3016 | if (ret) | |
3017 | goto out_free_mc_list; | |
3018 | ||
b9564468 | 3019 | netif_set_real_num_rx_queues(dev, port->num_def_qps); |
723f28e4 | 3020 | netif_set_real_num_tx_queues(dev, port->num_def_qps); |
b9564468 | 3021 | |
1acf2318 JBT |
3022 | port_dev = ehea_register_port(port, dn); |
3023 | if (!port_dev) | |
3024 | goto out_free_mc_list; | |
3025 | ||
3026 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
3027 | |
3028 | /* initialize net_device structure */ | |
7a291083 JBT |
3029 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); |
3030 | ||
086c1b2c TK |
3031 | dev->netdev_ops = &ehea_netdev_ops; |
3032 | ehea_set_ethtool_ops(dev); | |
3033 | ||
55fbbe46 DM |
3034 | dev->hw_features = NETIF_F_SG | NETIF_F_TSO | |
3035 | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_CTAG_TX; | |
3036 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO | | |
3037 | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | | |
3038 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | | |
3039 | NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_RXCSUM; | |
076f2032 AB |
3040 | dev->vlan_features = NETIF_F_SG | NETIF_F_TSO | NETIF_F_HIGHDMA | |
3041 | NETIF_F_IP_CSUM; | |
7a291083 JBT |
3042 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; |
3043 | ||
c4028958 | 3044 | INIT_WORK(&port->reset_task, ehea_reset_port); |
2aefcad8 | 3045 | INIT_DELAYED_WORK(&port->stats_work, ehea_update_stats); |
7a291083 | 3046 | |
21ccc793 AB |
3047 | init_waitqueue_head(&port->swqe_avail_wq); |
3048 | init_waitqueue_head(&port->restart_wq); | |
3049 | ||
2aefcad8 | 3050 | memset(&port->stats, 0, sizeof(struct net_device_stats)); |
7a291083 JBT |
3051 | ret = register_netdev(dev); |
3052 | if (ret) { | |
8c4877a4 | 3053 | pr_err("register_netdev failed. ret=%d\n", ret); |
21eee2dd | 3054 | goto out_unreg_port; |
7a291083 JBT |
3055 | } |
3056 | ||
1acf2318 | 3057 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 3058 | if (ret) |
8c4877a4 | 3059 | netdev_err(dev, "failed determining jumbo frame status\n"); |
1acf2318 | 3060 | |
8c4877a4 JP |
3061 | netdev_info(dev, "Jumbo frames are %sabled\n", |
3062 | jumbo == 1 ? "en" : "dis"); | |
9c750b7d | 3063 | |
44c82152 TK |
3064 | adapter->active_ports++; |
3065 | ||
1acf2318 | 3066 | return port; |
7a291083 | 3067 | |
1acf2318 JBT |
3068 | out_unreg_port: |
3069 | ehea_unregister_port(port); | |
3070 | ||
3071 | out_free_mc_list: | |
7a291083 | 3072 | kfree(port->mc_list); |
1acf2318 JBT |
3073 | |
3074 | out_free_ethdev: | |
3075 | free_netdev(dev); | |
3076 | ||
3077 | out_err: | |
8c4877a4 JP |
3078 | pr_err("setting up logical port with id=%d failed, ret=%d\n", |
3079 | logical_port_id, ret); | |
1acf2318 JBT |
3080 | return NULL; |
3081 | } | |
3082 | ||
3083 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
3084 | { | |
7fb1c2ac | 3085 | struct ehea_adapter *adapter = port->adapter; |
f5c35cc1 TH |
3086 | |
3087 | cancel_work_sync(&port->reset_task); | |
2aefcad8 | 3088 | cancel_delayed_work_sync(&port->stats_work); |
1acf2318 JBT |
3089 | unregister_netdev(port->netdev); |
3090 | ehea_unregister_port(port); | |
3091 | kfree(port->mc_list); | |
3092 | free_netdev(port->netdev); | |
7fb1c2ac | 3093 | adapter->active_ports--; |
7a291083 JBT |
3094 | } |
3095 | ||
3096 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
3097 | { | |
1acf2318 JBT |
3098 | struct device_node *lhea_dn; |
3099 | struct device_node *eth_dn = NULL; | |
d1d25aab | 3100 | |
9f9a3b8a | 3101 | const u32 *dn_log_port_id; |
1acf2318 JBT |
3102 | int i = 0; |
3103 | ||
61c7a080 | 3104 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3105 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3106 | |
40cd3a45 | 3107 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3108 | NULL); |
1acf2318 | 3109 | if (!dn_log_port_id) { |
8c4877a4 JP |
3110 | pr_err("bad device node: eth_dn name=%s\n", |
3111 | eth_dn->full_name); | |
1acf2318 JBT |
3112 | continue; |
3113 | } | |
7a291083 | 3114 | |
1211bb6d | 3115 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3116 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3117 | of_node_put(eth_dn); |
3118 | return -EIO; | |
3119 | } | |
3120 | ||
1acf2318 JBT |
3121 | adapter->port[i] = ehea_setup_single_port(adapter, |
3122 | *dn_log_port_id, | |
3123 | eth_dn); | |
7a291083 | 3124 | if (adapter->port[i]) |
8c4877a4 JP |
3125 | netdev_info(adapter->port[i]->netdev, |
3126 | "logical port id #%d\n", *dn_log_port_id); | |
1211bb6d TK |
3127 | else |
3128 | ehea_remove_adapter_mr(adapter); | |
3129 | ||
1acf2318 | 3130 | i++; |
ee289b64 | 3131 | } |
1211bb6d | 3132 | return 0; |
1acf2318 JBT |
3133 | } |
3134 | ||
e542aa6b JBT |
3135 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
3136 | u32 logical_port_id) | |
1acf2318 JBT |
3137 | { |
3138 | struct device_node *lhea_dn; | |
3139 | struct device_node *eth_dn = NULL; | |
9f9a3b8a | 3140 | const u32 *dn_log_port_id; |
1acf2318 | 3141 | |
61c7a080 | 3142 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3143 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3144 | |
40cd3a45 | 3145 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3146 | NULL); |
1acf2318 JBT |
3147 | if (dn_log_port_id) |
3148 | if (*dn_log_port_id == logical_port_id) | |
3149 | return eth_dn; | |
ee289b64 | 3150 | } |
1acf2318 JBT |
3151 | |
3152 | return NULL; | |
3153 | } | |
3154 | ||
3155 | static ssize_t ehea_probe_port(struct device *dev, | |
3156 | struct device_attribute *attr, | |
3157 | const char *buf, size_t count) | |
3158 | { | |
c7ae011d | 3159 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3160 | struct ehea_port *port; |
3161 | struct device_node *eth_dn = NULL; | |
3162 | int i; | |
3163 | ||
3164 | u32 logical_port_id; | |
3165 | ||
a8e34fda | 3166 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3167 | |
3168 | port = ehea_get_port(adapter, logical_port_id); | |
3169 | ||
3170 | if (port) { | |
8c4877a4 JP |
3171 | netdev_info(port->netdev, "adding port with logical port id=%d failed: port already configured\n", |
3172 | logical_port_id); | |
1acf2318 | 3173 | return -EINVAL; |
7a291083 | 3174 | } |
e542aa6b | 3175 | |
1acf2318 | 3176 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 3177 | |
1acf2318 | 3178 | if (!eth_dn) { |
8c4877a4 | 3179 | pr_info("no logical port with id %d found\n", logical_port_id); |
1acf2318 JBT |
3180 | return -EINVAL; |
3181 | } | |
e542aa6b | 3182 | |
1211bb6d | 3183 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3184 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3185 | return -EIO; |
3186 | } | |
3187 | ||
1acf2318 | 3188 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 3189 | |
1eef4e04 JBT |
3190 | of_node_put(eth_dn); |
3191 | ||
1acf2318 | 3192 | if (port) { |
508d2b5d | 3193 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3194 | if (!adapter->port[i]) { |
3195 | adapter->port[i] = port; | |
3196 | break; | |
3197 | } | |
7a291083 | 3198 | |
8c4877a4 JP |
3199 | netdev_info(port->netdev, "added: (logical port id=%d)\n", |
3200 | logical_port_id); | |
1211bb6d TK |
3201 | } else { |
3202 | ehea_remove_adapter_mr(adapter); | |
e542aa6b | 3203 | return -EIO; |
1211bb6d | 3204 | } |
7a291083 | 3205 | |
1acf2318 JBT |
3206 | return (ssize_t) count; |
3207 | } | |
3208 | ||
3209 | static ssize_t ehea_remove_port(struct device *dev, | |
3210 | struct device_attribute *attr, | |
3211 | const char *buf, size_t count) | |
3212 | { | |
c7ae011d | 3213 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3214 | struct ehea_port *port; |
3215 | int i; | |
3216 | u32 logical_port_id; | |
3217 | ||
a8e34fda | 3218 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3219 | |
3220 | port = ehea_get_port(adapter, logical_port_id); | |
3221 | ||
3222 | if (port) { | |
8c4877a4 JP |
3223 | netdev_info(port->netdev, "removed: (logical port id=%d)\n", |
3224 | logical_port_id); | |
1acf2318 JBT |
3225 | |
3226 | ehea_shutdown_single_port(port); | |
3227 | ||
508d2b5d | 3228 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3229 | if (adapter->port[i] == port) { |
3230 | adapter->port[i] = NULL; | |
3231 | break; | |
3232 | } | |
3233 | } else { | |
8c4877a4 JP |
3234 | pr_err("removing port with logical port id=%d failed. port not configured.\n", |
3235 | logical_port_id); | |
1acf2318 JBT |
3236 | return -EINVAL; |
3237 | } | |
3238 | ||
1211bb6d TK |
3239 | ehea_remove_adapter_mr(adapter); |
3240 | ||
1acf2318 JBT |
3241 | return (ssize_t) count; |
3242 | } | |
3243 | ||
3244 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
3245 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
3246 | ||
1886e5d2 | 3247 | static int ehea_create_device_sysfs(struct platform_device *dev) |
1acf2318 | 3248 | { |
6b08f3ae | 3249 | int ret = device_create_file(&dev->dev, &dev_attr_probe_port); |
1acf2318 JBT |
3250 | if (ret) |
3251 | goto out; | |
3252 | ||
6b08f3ae | 3253 | ret = device_create_file(&dev->dev, &dev_attr_remove_port); |
1acf2318 | 3254 | out: |
7a291083 JBT |
3255 | return ret; |
3256 | } | |
3257 | ||
1886e5d2 | 3258 | static void ehea_remove_device_sysfs(struct platform_device *dev) |
1acf2318 | 3259 | { |
6b08f3ae JF |
3260 | device_remove_file(&dev->dev, &dev_attr_probe_port); |
3261 | device_remove_file(&dev->dev, &dev_attr_remove_port); | |
1acf2318 JBT |
3262 | } |
3263 | ||
c45640e4 | 3264 | static int ehea_probe_adapter(struct platform_device *dev) |
7a291083 JBT |
3265 | { |
3266 | struct ehea_adapter *adapter; | |
9f9a3b8a | 3267 | const u64 *adapter_handle; |
7a291083 | 3268 | int ret; |
c2f1244b | 3269 | int i; |
7a291083 | 3270 | |
61c7a080 | 3271 | if (!dev || !dev->dev.of_node) { |
8c4877a4 | 3272 | pr_err("Invalid ibmebus device probed\n"); |
1eef4e04 JBT |
3273 | return -EINVAL; |
3274 | } | |
3275 | ||
7a291083 JBT |
3276 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
3277 | if (!adapter) { | |
3278 | ret = -ENOMEM; | |
6b08f3ae | 3279 | dev_err(&dev->dev, "no mem for ehea_adapter\n"); |
7a291083 JBT |
3280 | goto out; |
3281 | } | |
3282 | ||
44c82152 TK |
3283 | list_add(&adapter->list, &adapter_list); |
3284 | ||
6b08f3ae | 3285 | adapter->ofdev = dev; |
1acf2318 | 3286 | |
61c7a080 | 3287 | adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle", |
d1d25aab | 3288 | NULL); |
061bf3cd TK |
3289 | if (adapter_handle) |
3290 | adapter->handle = *adapter_handle; | |
3291 | ||
3292 | if (!adapter->handle) { | |
6b08f3ae | 3293 | dev_err(&dev->dev, "failed getting handle for adapter" |
61c7a080 | 3294 | " '%s'\n", dev->dev.of_node->full_name); |
7a291083 JBT |
3295 | ret = -ENODEV; |
3296 | goto out_free_ad; | |
3297 | } | |
3298 | ||
7a291083 JBT |
3299 | adapter->pd = EHEA_PD_ID; |
3300 | ||
8513fbd8 | 3301 | platform_set_drvdata(dev, adapter); |
7a291083 | 3302 | |
7a291083 JBT |
3303 | |
3304 | /* initialize adapter and ports */ | |
3305 | /* get adapter properties */ | |
3306 | ret = ehea_sense_adapter_attr(adapter); | |
3307 | if (ret) { | |
898eb71c | 3308 | dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret); |
1211bb6d | 3309 | goto out_free_ad; |
7a291083 | 3310 | } |
7a291083 JBT |
3311 | |
3312 | adapter->neq = ehea_create_eq(adapter, | |
3313 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
3314 | if (!adapter->neq) { | |
1eef4e04 | 3315 | ret = -EIO; |
898eb71c | 3316 | dev_err(&dev->dev, "NEQ creation failed\n"); |
1211bb6d | 3317 | goto out_free_ad; |
7a291083 JBT |
3318 | } |
3319 | ||
3320 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
3321 | (unsigned long)adapter); | |
3322 | ||
1eef4e04 JBT |
3323 | ret = ehea_create_device_sysfs(dev); |
3324 | if (ret) | |
c2f1244b | 3325 | goto out_kill_eq; |
1acf2318 | 3326 | |
7a291083 JBT |
3327 | ret = ehea_setup_ports(adapter); |
3328 | if (ret) { | |
898eb71c | 3329 | dev_err(&dev->dev, "setup_ports failed\n"); |
1acf2318 | 3330 | goto out_rem_dev_sysfs; |
7a291083 JBT |
3331 | } |
3332 | ||
c2f1244b | 3333 | ret = ibmebus_request_irq(adapter->neq->attr.ist1, |
46c915f8 | 3334 | ehea_interrupt_neq, 0, |
c2f1244b TLSC |
3335 | "ehea_neq", adapter); |
3336 | if (ret) { | |
3337 | dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); | |
3338 | goto out_shutdown_ports; | |
3339 | } | |
3340 | ||
380ec964 TLSC |
3341 | /* Handle any events that might be pending. */ |
3342 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
c2f1244b | 3343 | |
7a291083 JBT |
3344 | ret = 0; |
3345 | goto out; | |
3346 | ||
c2f1244b TLSC |
3347 | out_shutdown_ports: |
3348 | for (i = 0; i < EHEA_MAX_PORTS; i++) | |
3349 | if (adapter->port[i]) { | |
3350 | ehea_shutdown_single_port(adapter->port[i]); | |
3351 | adapter->port[i] = NULL; | |
3352 | } | |
3353 | ||
1acf2318 JBT |
3354 | out_rem_dev_sysfs: |
3355 | ehea_remove_device_sysfs(dev); | |
3356 | ||
7a291083 JBT |
3357 | out_kill_eq: |
3358 | ehea_destroy_eq(adapter->neq); | |
3359 | ||
7a291083 | 3360 | out_free_ad: |
51621fbd | 3361 | list_del(&adapter->list); |
7a291083 | 3362 | kfree(adapter); |
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); |
7a291083 | 3389 | kfree(adapter); |
44c82152 | 3390 | |
21eee2dd | 3391 | ehea_update_firmware_handles(); |
21eee2dd | 3392 | |
7a291083 JBT |
3393 | return 0; |
3394 | } | |
3395 | ||
1886e5d2 | 3396 | static void ehea_crash_handler(void) |
21eee2dd TK |
3397 | { |
3398 | int i; | |
3399 | ||
3400 | if (ehea_fw_handles.arr) | |
3401 | for (i = 0; i < ehea_fw_handles.num_entries; i++) | |
3402 | ehea_h_free_resource(ehea_fw_handles.arr[i].adh, | |
3403 | ehea_fw_handles.arr[i].fwh, | |
3404 | FORCE_FREE); | |
3405 | ||
3406 | if (ehea_bcmc_regs.arr) | |
3407 | for (i = 0; i < ehea_bcmc_regs.num_entries; i++) | |
3408 | ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh, | |
3409 | ehea_bcmc_regs.arr[i].port_id, | |
3410 | ehea_bcmc_regs.arr[i].reg_type, | |
3411 | ehea_bcmc_regs.arr[i].macaddr, | |
3412 | 0, H_DEREG_BCMC); | |
3413 | } | |
3414 | ||
48cfb14f HH |
3415 | static int ehea_mem_notifier(struct notifier_block *nb, |
3416 | unsigned long action, void *data) | |
3417 | { | |
a7c561f2 | 3418 | int ret = NOTIFY_BAD; |
d4f12daf | 3419 | struct memory_notify *arg = data; |
a7c561f2 | 3420 | |
099473c1 | 3421 | mutex_lock(&dlpar_mem_lock); |
a7c561f2 | 3422 | |
48cfb14f | 3423 | switch (action) { |
d4f12daf | 3424 | case MEM_CANCEL_OFFLINE: |
8c4877a4 | 3425 | pr_info("memory offlining canceled"); |
d4f12daf HH |
3426 | /* Readd canceled memory block */ |
3427 | case MEM_ONLINE: | |
8c4877a4 | 3428 | pr_info("memory is going online"); |
3876732c | 3429 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3430 | if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3431 | goto out_unlock; |
3d6b892b | 3432 | ehea_rereg_mrs(); |
d4f12daf HH |
3433 | break; |
3434 | case MEM_GOING_OFFLINE: | |
8c4877a4 | 3435 | pr_info("memory is going offline"); |
3876732c | 3436 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3437 | if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3438 | goto out_unlock; |
3d6b892b | 3439 | ehea_rereg_mrs(); |
48cfb14f HH |
3440 | break; |
3441 | default: | |
3442 | break; | |
3443 | } | |
52e21b1b JBT |
3444 | |
3445 | ehea_update_firmware_handles(); | |
a7c561f2 | 3446 | ret = NOTIFY_OK; |
52e21b1b | 3447 | |
a7c561f2 TK |
3448 | out_unlock: |
3449 | mutex_unlock(&dlpar_mem_lock); | |
a7c561f2 | 3450 | return ret; |
48cfb14f HH |
3451 | } |
3452 | ||
3453 | static struct notifier_block ehea_mem_nb = { | |
3454 | .notifier_call = ehea_mem_notifier, | |
3455 | }; | |
3456 | ||
2a6f4e49 JBT |
3457 | static int ehea_reboot_notifier(struct notifier_block *nb, |
3458 | unsigned long action, void *unused) | |
3459 | { | |
3460 | if (action == SYS_RESTART) { | |
8c4877a4 | 3461 | pr_info("Reboot: freeing all eHEA resources\n"); |
2a6f4e49 JBT |
3462 | ibmebus_unregister_driver(&ehea_driver); |
3463 | } | |
3464 | return NOTIFY_DONE; | |
3465 | } | |
3466 | ||
3467 | static struct notifier_block ehea_reboot_nb = { | |
508d2b5d | 3468 | .notifier_call = ehea_reboot_notifier, |
2a6f4e49 JBT |
3469 | }; |
3470 | ||
7a291083 JBT |
3471 | static int check_module_parm(void) |
3472 | { | |
3473 | int ret = 0; | |
3474 | ||
3475 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
3476 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
8c4877a4 | 3477 | pr_info("Bad parameter: rq1_entries\n"); |
7a291083 JBT |
3478 | ret = -EINVAL; |
3479 | } | |
3480 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
3481 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
8c4877a4 | 3482 | pr_info("Bad parameter: rq2_entries\n"); |
7a291083 JBT |
3483 | ret = -EINVAL; |
3484 | } | |
3485 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
3486 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
8c4877a4 | 3487 | pr_info("Bad parameter: rq3_entries\n"); |
7a291083 JBT |
3488 | ret = -EINVAL; |
3489 | } | |
3490 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
3491 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
8c4877a4 | 3492 | pr_info("Bad parameter: sq_entries\n"); |
7a291083 JBT |
3493 | ret = -EINVAL; |
3494 | } | |
3495 | ||
3496 | return ret; | |
3497 | } | |
3498 | ||
4c3ca4da JBT |
3499 | static ssize_t ehea_show_capabilities(struct device_driver *drv, |
3500 | char *buf) | |
3501 | { | |
3502 | return sprintf(buf, "%d", EHEA_CAPABILITIES); | |
3503 | } | |
3504 | ||
3505 | static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH, | |
3506 | ehea_show_capabilities, NULL); | |
3507 | ||
1886e5d2 | 3508 | static int __init ehea_module_init(void) |
7a291083 JBT |
3509 | { |
3510 | int ret; | |
3511 | ||
8c4877a4 | 3512 | pr_info("IBM eHEA ethernet device driver (Release %s)\n", DRV_VERSION); |
7a291083 | 3513 | |
21eee2dd TK |
3514 | memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); |
3515 | memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); | |
3516 | ||
9f71a568 | 3517 | mutex_init(&ehea_fw_handles.lock); |
5c2cec14 | 3518 | spin_lock_init(&ehea_bcmc_regs.lock); |
44c82152 | 3519 | |
7a291083 JBT |
3520 | ret = check_module_parm(); |
3521 | if (ret) | |
3522 | goto out; | |
44c82152 TK |
3523 | |
3524 | ret = ehea_create_busmap(); | |
3525 | if (ret) | |
3526 | goto out; | |
3527 | ||
21eee2dd TK |
3528 | ret = register_reboot_notifier(&ehea_reboot_nb); |
3529 | if (ret) | |
8c4877a4 | 3530 | pr_info("failed registering reboot notifier\n"); |
21eee2dd | 3531 | |
48cfb14f HH |
3532 | ret = register_memory_notifier(&ehea_mem_nb); |
3533 | if (ret) | |
8c4877a4 | 3534 | pr_info("failed registering memory remove notifier\n"); |
48cfb14f | 3535 | |
c061b18d | 3536 | ret = crash_shutdown_register(ehea_crash_handler); |
21eee2dd | 3537 | if (ret) |
8c4877a4 | 3538 | pr_info("failed registering crash handler\n"); |
2a6f4e49 | 3539 | |
7a291083 | 3540 | ret = ibmebus_register_driver(&ehea_driver); |
4c3ca4da | 3541 | if (ret) { |
8c4877a4 | 3542 | pr_err("failed registering eHEA device driver on ebus\n"); |
21eee2dd | 3543 | goto out2; |
4c3ca4da JBT |
3544 | } |
3545 | ||
3546 | ret = driver_create_file(&ehea_driver.driver, | |
3547 | &driver_attr_capabilities); | |
3548 | if (ret) { | |
8c4877a4 JP |
3549 | pr_err("failed to register capabilities attribute, ret=%d\n", |
3550 | ret); | |
21eee2dd | 3551 | goto out3; |
4c3ca4da | 3552 | } |
7a291083 | 3553 | |
21eee2dd TK |
3554 | return ret; |
3555 | ||
3556 | out3: | |
3557 | ibmebus_unregister_driver(&ehea_driver); | |
3558 | out2: | |
48cfb14f | 3559 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd | 3560 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3561 | crash_shutdown_unregister(ehea_crash_handler); |
7a291083 JBT |
3562 | out: |
3563 | return ret; | |
3564 | } | |
3565 | ||
3566 | static void __exit ehea_module_exit(void) | |
3567 | { | |
21eee2dd TK |
3568 | int ret; |
3569 | ||
4c3ca4da | 3570 | driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities); |
7a291083 | 3571 | ibmebus_unregister_driver(&ehea_driver); |
2a6f4e49 | 3572 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3573 | ret = crash_shutdown_unregister(ehea_crash_handler); |
21eee2dd | 3574 | if (ret) |
8c4877a4 | 3575 | pr_info("failed unregistering crash handler\n"); |
48cfb14f | 3576 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3577 | kfree(ehea_fw_handles.arr); |
3578 | kfree(ehea_bcmc_regs.arr); | |
44c82152 | 3579 | ehea_destroy_busmap(); |
7a291083 JBT |
3580 | } |
3581 | ||
3582 | module_init(ehea_module_init); | |
3583 | module_exit(ehea_module_exit); |