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Commit | Line | Data |
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7a291083 JBT |
1 | /* |
2 | * linux/drivers/net/ehea/ehea_main.c | |
3 | * | |
4 | * eHEA ethernet device driver for IBM eServer System p | |
5 | * | |
6 | * (C) Copyright IBM Corp. 2006 | |
7 | * | |
8 | * Authors: | |
508d2b5d DM |
9 | * Christoph Raisch <raisch@de.ibm.com> |
10 | * Jan-Bernd Themann <themann@de.ibm.com> | |
11 | * Thomas Klein <tklein@de.ibm.com> | |
7a291083 JBT |
12 | * |
13 | * | |
14 | * This program is free software; you can redistribute it and/or modify | |
15 | * it under the terms of the GNU General Public License as published by | |
16 | * the Free Software Foundation; either version 2, or (at your option) | |
17 | * any later version. | |
18 | * | |
19 | * This program is distributed in the hope that it will be useful, | |
20 | * but WITHOUT ANY WARRANTY; without even the implied warranty of | |
21 | * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the | |
22 | * GNU General Public License for more details. | |
23 | * | |
24 | * You should have received a copy of the GNU General Public License | |
25 | * along with this program; if not, write to the Free Software | |
26 | * Foundation, Inc., 675 Mass Ave, Cambridge, MA 02139, USA. | |
27 | */ | |
28 | ||
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 use_lro; |
d4dc4ec9 | 66 | static int lro_max_aggr = EHEA_LRO_MAX_AGGR; |
508d2b5d | 67 | static int prop_carrier_state; |
7a291083 JBT |
68 | |
69 | module_param(msg_level, int, 0); | |
70 | module_param(rq1_entries, int, 0); | |
71 | module_param(rq2_entries, int, 0); | |
72 | module_param(rq3_entries, int, 0); | |
73 | module_param(sq_entries, int, 0); | |
8759cf76 | 74 | module_param(prop_carrier_state, int, 0); |
18604c54 | 75 | module_param(use_mcs, int, 0); |
d4dc4ec9 JBT |
76 | module_param(use_lro, int, 0); |
77 | module_param(lro_max_aggr, int, 0); | |
7a291083 JBT |
78 | |
79 | MODULE_PARM_DESC(msg_level, "msg_level"); | |
8759cf76 JBT |
80 | MODULE_PARM_DESC(prop_carrier_state, "Propagate carrier state of physical " |
81 | "port to stack. 1:yes, 0:no. Default = 0 "); | |
7a291083 JBT |
82 | MODULE_PARM_DESC(rq3_entries, "Number of entries for Receive Queue 3 " |
83 | "[2^x - 1], x = [6..14]. Default = " | |
84 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ3) ")"); | |
85 | MODULE_PARM_DESC(rq2_entries, "Number of entries for Receive Queue 2 " | |
86 | "[2^x - 1], x = [6..14]. Default = " | |
87 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ2) ")"); | |
88 | MODULE_PARM_DESC(rq1_entries, "Number of entries for Receive Queue 1 " | |
89 | "[2^x - 1], x = [6..14]. Default = " | |
90 | __MODULE_STRING(EHEA_DEF_ENTRIES_RQ1) ")"); | |
91 | MODULE_PARM_DESC(sq_entries, " Number of entries for the Send Queue " | |
92 | "[2^x - 1], x = [6..14]. Default = " | |
93 | __MODULE_STRING(EHEA_DEF_ENTRIES_SQ) ")"); | |
b9564468 AB |
94 | MODULE_PARM_DESC(use_mcs, " Multiple receive queues, 1: enable, 0: disable, " |
95 | "Default = 1"); | |
7a291083 | 96 | |
d4dc4ec9 JBT |
97 | MODULE_PARM_DESC(lro_max_aggr, " LRO: Max packets to be aggregated. Default = " |
98 | __MODULE_STRING(EHEA_LRO_MAX_AGGR)); | |
99 | MODULE_PARM_DESC(use_lro, " Large Receive Offload, 1: enable, 0: disable, " | |
100 | "Default = 0"); | |
101 | ||
508d2b5d | 102 | static int port_name_cnt; |
44c82152 | 103 | static LIST_HEAD(adapter_list); |
48e4cc77 | 104 | static unsigned long ehea_driver_flags; |
06f89edf | 105 | static DEFINE_MUTEX(dlpar_mem_lock); |
21eee2dd TK |
106 | struct ehea_fw_handle_array ehea_fw_handles; |
107 | struct ehea_bcmc_reg_array ehea_bcmc_regs; | |
108 | ||
d1dea38d | 109 | |
2dc11581 | 110 | static int __devinit ehea_probe_adapter(struct platform_device *dev, |
d1d25aab | 111 | const struct of_device_id *id); |
d1dea38d | 112 | |
2dc11581 | 113 | static int __devexit ehea_remove(struct platform_device *dev); |
d1dea38d TK |
114 | |
115 | static struct of_device_id ehea_device_table[] = { | |
116 | { | |
117 | .name = "lhea", | |
118 | .compatible = "IBM,lhea", | |
119 | }, | |
120 | {}, | |
121 | }; | |
b0afffe8 | 122 | MODULE_DEVICE_TABLE(of, ehea_device_table); |
d1dea38d | 123 | |
6b08f3ae | 124 | static struct of_platform_driver ehea_driver = { |
4018294b GL |
125 | .driver = { |
126 | .name = "ehea", | |
127 | .owner = THIS_MODULE, | |
128 | .of_match_table = ehea_device_table, | |
129 | }, | |
d1dea38d TK |
130 | .probe = ehea_probe_adapter, |
131 | .remove = ehea_remove, | |
132 | }; | |
133 | ||
508d2b5d DM |
134 | void ehea_dump(void *adr, int len, char *msg) |
135 | { | |
7a291083 JBT |
136 | int x; |
137 | unsigned char *deb = adr; | |
138 | for (x = 0; x < len; x += 16) { | |
8c4877a4 JP |
139 | pr_info("%s adr=%p ofs=%04x %016llx %016llx\n", |
140 | msg, deb, x, *((u64 *)&deb[0]), *((u64 *)&deb[8])); | |
7a291083 JBT |
141 | deb += 16; |
142 | } | |
143 | } | |
144 | ||
2f69ae01 JBT |
145 | void ehea_schedule_port_reset(struct ehea_port *port) |
146 | { | |
147 | if (!test_bit(__EHEA_DISABLE_PORT_RESET, &port->flags)) | |
148 | schedule_work(&port->reset_task); | |
149 | } | |
150 | ||
21eee2dd TK |
151 | static void ehea_update_firmware_handles(void) |
152 | { | |
153 | struct ehea_fw_handle_entry *arr = NULL; | |
154 | struct ehea_adapter *adapter; | |
155 | int num_adapters = 0; | |
156 | int num_ports = 0; | |
157 | int num_portres = 0; | |
158 | int i = 0; | |
159 | int num_fw_handles, k, l; | |
160 | ||
161 | /* Determine number of handles */ | |
52e21b1b JBT |
162 | mutex_lock(&ehea_fw_handles.lock); |
163 | ||
21eee2dd TK |
164 | list_for_each_entry(adapter, &adapter_list, list) { |
165 | num_adapters++; | |
166 | ||
167 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
168 | struct ehea_port *port = adapter->port[k]; | |
169 | ||
170 | if (!port || (port->state != EHEA_PORT_UP)) | |
171 | continue; | |
172 | ||
173 | num_ports++; | |
723f28e4 | 174 | num_portres += port->num_def_qps; |
21eee2dd TK |
175 | } |
176 | } | |
177 | ||
178 | num_fw_handles = num_adapters * EHEA_NUM_ADAPTER_FW_HANDLES + | |
179 | num_ports * EHEA_NUM_PORT_FW_HANDLES + | |
180 | num_portres * EHEA_NUM_PORTRES_FW_HANDLES; | |
181 | ||
182 | if (num_fw_handles) { | |
baeb2ffa | 183 | arr = kcalloc(num_fw_handles, sizeof(*arr), GFP_KERNEL); |
21eee2dd | 184 | if (!arr) |
52e21b1b | 185 | goto out; /* Keep the existing array */ |
21eee2dd TK |
186 | } else |
187 | goto out_update; | |
188 | ||
189 | list_for_each_entry(adapter, &adapter_list, list) { | |
52e21b1b JBT |
190 | if (num_adapters == 0) |
191 | break; | |
192 | ||
21eee2dd TK |
193 | for (k = 0; k < EHEA_MAX_PORTS; k++) { |
194 | struct ehea_port *port = adapter->port[k]; | |
195 | ||
8e95a202 JP |
196 | if (!port || (port->state != EHEA_PORT_UP) || |
197 | (num_ports == 0)) | |
21eee2dd TK |
198 | continue; |
199 | ||
723f28e4 | 200 | for (l = 0; l < port->num_def_qps; l++) { |
21eee2dd TK |
201 | struct ehea_port_res *pr = &port->port_res[l]; |
202 | ||
203 | arr[i].adh = adapter->handle; | |
204 | arr[i++].fwh = pr->qp->fw_handle; | |
205 | arr[i].adh = adapter->handle; | |
206 | arr[i++].fwh = pr->send_cq->fw_handle; | |
207 | arr[i].adh = adapter->handle; | |
208 | arr[i++].fwh = pr->recv_cq->fw_handle; | |
209 | arr[i].adh = adapter->handle; | |
210 | arr[i++].fwh = pr->eq->fw_handle; | |
211 | arr[i].adh = adapter->handle; | |
212 | arr[i++].fwh = pr->send_mr.handle; | |
213 | arr[i].adh = adapter->handle; | |
214 | arr[i++].fwh = pr->recv_mr.handle; | |
215 | } | |
216 | arr[i].adh = adapter->handle; | |
217 | arr[i++].fwh = port->qp_eq->fw_handle; | |
52e21b1b | 218 | num_ports--; |
21eee2dd TK |
219 | } |
220 | ||
221 | arr[i].adh = adapter->handle; | |
222 | arr[i++].fwh = adapter->neq->fw_handle; | |
223 | ||
224 | if (adapter->mr.handle) { | |
225 | arr[i].adh = adapter->handle; | |
226 | arr[i++].fwh = adapter->mr.handle; | |
227 | } | |
52e21b1b | 228 | num_adapters--; |
21eee2dd TK |
229 | } |
230 | ||
231 | out_update: | |
232 | kfree(ehea_fw_handles.arr); | |
233 | ehea_fw_handles.arr = arr; | |
234 | ehea_fw_handles.num_entries = i; | |
52e21b1b JBT |
235 | out: |
236 | mutex_unlock(&ehea_fw_handles.lock); | |
21eee2dd TK |
237 | } |
238 | ||
239 | static void ehea_update_bcmc_registrations(void) | |
240 | { | |
52e21b1b | 241 | unsigned long flags; |
21eee2dd TK |
242 | struct ehea_bcmc_reg_entry *arr = NULL; |
243 | struct ehea_adapter *adapter; | |
244 | struct ehea_mc_list *mc_entry; | |
245 | int num_registrations = 0; | |
246 | int i = 0; | |
247 | int k; | |
248 | ||
52e21b1b JBT |
249 | spin_lock_irqsave(&ehea_bcmc_regs.lock, flags); |
250 | ||
21eee2dd TK |
251 | /* Determine number of registrations */ |
252 | list_for_each_entry(adapter, &adapter_list, list) | |
253 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
254 | struct ehea_port *port = adapter->port[k]; | |
255 | ||
256 | if (!port || (port->state != EHEA_PORT_UP)) | |
257 | continue; | |
258 | ||
259 | num_registrations += 2; /* Broadcast registrations */ | |
260 | ||
261 | list_for_each_entry(mc_entry, &port->mc_list->list,list) | |
262 | num_registrations += 2; | |
263 | } | |
264 | ||
265 | if (num_registrations) { | |
baeb2ffa | 266 | arr = kcalloc(num_registrations, sizeof(*arr), GFP_ATOMIC); |
21eee2dd | 267 | if (!arr) |
52e21b1b | 268 | goto out; /* Keep the existing array */ |
21eee2dd TK |
269 | } else |
270 | goto out_update; | |
271 | ||
272 | list_for_each_entry(adapter, &adapter_list, list) { | |
273 | for (k = 0; k < EHEA_MAX_PORTS; k++) { | |
274 | struct ehea_port *port = adapter->port[k]; | |
275 | ||
276 | if (!port || (port->state != EHEA_PORT_UP)) | |
277 | continue; | |
278 | ||
52e21b1b JBT |
279 | if (num_registrations == 0) |
280 | goto out_update; | |
281 | ||
21eee2dd TK |
282 | arr[i].adh = adapter->handle; |
283 | arr[i].port_id = port->logical_port_id; | |
284 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
285 | EHEA_BCMC_UNTAGGED; | |
286 | arr[i++].macaddr = port->mac_addr; | |
287 | ||
288 | arr[i].adh = adapter->handle; | |
289 | arr[i].port_id = port->logical_port_id; | |
290 | arr[i].reg_type = EHEA_BCMC_BROADCAST | | |
291 | EHEA_BCMC_VLANID_ALL; | |
292 | arr[i++].macaddr = port->mac_addr; | |
52e21b1b | 293 | num_registrations -= 2; |
21eee2dd TK |
294 | |
295 | list_for_each_entry(mc_entry, | |
296 | &port->mc_list->list, list) { | |
52e21b1b JBT |
297 | if (num_registrations == 0) |
298 | goto out_update; | |
299 | ||
21eee2dd TK |
300 | arr[i].adh = adapter->handle; |
301 | arr[i].port_id = port->logical_port_id; | |
302 | arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | | |
303 | EHEA_BCMC_MULTICAST | | |
304 | EHEA_BCMC_UNTAGGED; | |
305 | arr[i++].macaddr = mc_entry->macaddr; | |
306 | ||
307 | arr[i].adh = adapter->handle; | |
308 | arr[i].port_id = port->logical_port_id; | |
309 | arr[i].reg_type = EHEA_BCMC_SCOPE_ALL | | |
310 | EHEA_BCMC_MULTICAST | | |
311 | EHEA_BCMC_VLANID_ALL; | |
312 | arr[i++].macaddr = mc_entry->macaddr; | |
52e21b1b | 313 | num_registrations -= 2; |
21eee2dd TK |
314 | } |
315 | } | |
316 | } | |
317 | ||
318 | out_update: | |
319 | kfree(ehea_bcmc_regs.arr); | |
320 | ehea_bcmc_regs.arr = arr; | |
321 | ehea_bcmc_regs.num_entries = i; | |
52e21b1b JBT |
322 | out: |
323 | spin_unlock_irqrestore(&ehea_bcmc_regs.lock, flags); | |
21eee2dd TK |
324 | } |
325 | ||
7a291083 JBT |
326 | static struct net_device_stats *ehea_get_stats(struct net_device *dev) |
327 | { | |
328 | struct ehea_port *port = netdev_priv(dev); | |
329 | struct net_device_stats *stats = &port->stats; | |
2aefcad8 | 330 | u64 rx_packets = 0, tx_packets = 0, rx_bytes = 0, tx_bytes = 0; |
7a291083 JBT |
331 | int i; |
332 | ||
2aefcad8 | 333 | for (i = 0; i < port->num_def_qps; i++) { |
334 | rx_packets += port->port_res[i].rx_packets; | |
335 | rx_bytes += port->port_res[i].rx_bytes; | |
336 | } | |
337 | ||
723f28e4 | 338 | for (i = 0; i < port->num_def_qps; i++) { |
2aefcad8 | 339 | tx_packets += port->port_res[i].tx_packets; |
340 | tx_bytes += port->port_res[i].tx_bytes; | |
341 | } | |
342 | ||
343 | stats->tx_packets = tx_packets; | |
344 | stats->rx_bytes = rx_bytes; | |
345 | stats->tx_bytes = tx_bytes; | |
346 | stats->rx_packets = rx_packets; | |
347 | ||
348 | return &port->stats; | |
349 | } | |
350 | ||
351 | static void ehea_update_stats(struct work_struct *work) | |
352 | { | |
353 | struct ehea_port *port = | |
354 | container_of(work, struct ehea_port, stats_work.work); | |
355 | struct net_device *dev = port->netdev; | |
356 | struct net_device_stats *stats = &port->stats; | |
357 | struct hcp_ehea_port_cb2 *cb2; | |
358 | u64 hret; | |
7a291083 | 359 | |
3d8009c7 | 360 | cb2 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 361 | if (!cb2) { |
2aefcad8 | 362 | netdev_err(dev, "No mem for cb2. Some interface statistics were not updated\n"); |
363 | goto resched; | |
7a291083 JBT |
364 | } |
365 | ||
366 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
367 | port->logical_port_id, | |
368 | H_PORT_CB2, H_PORT_CB2_ALL, cb2); | |
369 | if (hret != H_SUCCESS) { | |
8c4877a4 | 370 | netdev_err(dev, "query_ehea_port failed\n"); |
7a291083 JBT |
371 | goto out_herr; |
372 | } | |
373 | ||
374 | if (netif_msg_hw(port)) | |
375 | ehea_dump(cb2, sizeof(*cb2), "net_device_stats"); | |
376 | ||
7a291083 JBT |
377 | stats->multicast = cb2->rxmcp; |
378 | stats->rx_errors = cb2->rxuerr; | |
7a291083 JBT |
379 | |
380 | out_herr: | |
3faf2693 | 381 | free_page((unsigned long)cb2); |
2aefcad8 | 382 | resched: |
383 | schedule_delayed_work(&port->stats_work, msecs_to_jiffies(1000)); | |
7a291083 JBT |
384 | } |
385 | ||
386 | static void ehea_refill_rq1(struct ehea_port_res *pr, int index, int nr_of_wqes) | |
387 | { | |
388 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
389 | struct net_device *dev = pr->port->netdev; | |
390 | int max_index_mask = pr->rq1_skba.len - 1; | |
2c69448b JBT |
391 | int fill_wqes = pr->rq1_skba.os_skbs + nr_of_wqes; |
392 | int adder = 0; | |
7a291083 JBT |
393 | int i; |
394 | ||
2c69448b JBT |
395 | pr->rq1_skba.os_skbs = 0; |
396 | ||
397 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { | |
44fb3126 TK |
398 | if (nr_of_wqes > 0) |
399 | pr->rq1_skba.index = index; | |
2c69448b | 400 | pr->rq1_skba.os_skbs = fill_wqes; |
7a291083 | 401 | return; |
2c69448b | 402 | } |
7a291083 | 403 | |
2c69448b | 404 | for (i = 0; i < fill_wqes; i++) { |
7a291083 JBT |
405 | if (!skb_arr_rq1[index]) { |
406 | skb_arr_rq1[index] = netdev_alloc_skb(dev, | |
407 | EHEA_L_PKT_SIZE); | |
408 | if (!skb_arr_rq1[index]) { | |
8c4877a4 | 409 | netdev_info(dev, "Unable to allocate enough skb in the array\n"); |
2c69448b | 410 | pr->rq1_skba.os_skbs = fill_wqes - i; |
7a291083 JBT |
411 | break; |
412 | } | |
413 | } | |
414 | index--; | |
415 | index &= max_index_mask; | |
2c69448b | 416 | adder++; |
7a291083 | 417 | } |
2c69448b JBT |
418 | |
419 | if (adder == 0) | |
420 | return; | |
421 | ||
7a291083 | 422 | /* Ring doorbell */ |
2c69448b | 423 | ehea_update_rq1a(pr->qp, adder); |
7a291083 JBT |
424 | } |
425 | ||
e2878806 | 426 | static void ehea_init_fill_rq1(struct ehea_port_res *pr, int nr_rq1a) |
7a291083 | 427 | { |
7a291083 JBT |
428 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; |
429 | struct net_device *dev = pr->port->netdev; | |
430 | int i; | |
431 | ||
5c7e57f7 | 432 | if (nr_rq1a > pr->rq1_skba.len) { |
8c4877a4 | 433 | netdev_err(dev, "NR_RQ1A bigger than skb array len\n"); |
5c7e57f7 BL |
434 | return; |
435 | } | |
436 | ||
437 | for (i = 0; i < nr_rq1a; i++) { | |
7a291083 | 438 | skb_arr_rq1[i] = netdev_alloc_skb(dev, EHEA_L_PKT_SIZE); |
5c7e57f7 | 439 | if (!skb_arr_rq1[i]) { |
8c4877a4 | 440 | netdev_info(dev, "Not enough memory to allocate skb array\n"); |
e2878806 | 441 | break; |
5c7e57f7 | 442 | } |
7a291083 JBT |
443 | } |
444 | /* Ring doorbell */ | |
f76957fc | 445 | ehea_update_rq1a(pr->qp, i - 1); |
7a291083 JBT |
446 | } |
447 | ||
448 | static int ehea_refill_rq_def(struct ehea_port_res *pr, | |
449 | struct ehea_q_skb_arr *q_skba, int rq_nr, | |
450 | int num_wqes, int wqe_type, int packet_size) | |
451 | { | |
452 | struct net_device *dev = pr->port->netdev; | |
453 | struct ehea_qp *qp = pr->qp; | |
454 | struct sk_buff **skb_arr = q_skba->arr; | |
455 | struct ehea_rwqe *rwqe; | |
456 | int i, index, max_index_mask, fill_wqes; | |
2c69448b | 457 | int adder = 0; |
7a291083 JBT |
458 | int ret = 0; |
459 | ||
460 | fill_wqes = q_skba->os_skbs + num_wqes; | |
2c69448b | 461 | q_skba->os_skbs = 0; |
7a291083 | 462 | |
2c69448b JBT |
463 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
464 | q_skba->os_skbs = fill_wqes; | |
7a291083 | 465 | return ret; |
2c69448b | 466 | } |
7a291083 JBT |
467 | |
468 | index = q_skba->index; | |
469 | max_index_mask = q_skba->len - 1; | |
470 | for (i = 0; i < fill_wqes; i++) { | |
2c69448b | 471 | u64 tmp_addr; |
89d71a66 ED |
472 | struct sk_buff *skb; |
473 | ||
474 | skb = netdev_alloc_skb_ip_align(dev, packet_size); | |
7a291083 | 475 | if (!skb) { |
7a291083 | 476 | q_skba->os_skbs = fill_wqes - i; |
e2878806 | 477 | if (q_skba->os_skbs == q_skba->len - 2) { |
8c4877a4 JP |
478 | netdev_info(pr->port->netdev, |
479 | "rq%i ran dry - no mem for skb\n", | |
480 | rq_nr); | |
e2878806 TK |
481 | ret = -ENOMEM; |
482 | } | |
7a291083 JBT |
483 | break; |
484 | } | |
7a291083 JBT |
485 | |
486 | skb_arr[index] = skb; | |
2c69448b JBT |
487 | tmp_addr = ehea_map_vaddr(skb->data); |
488 | if (tmp_addr == -1) { | |
489 | dev_kfree_skb(skb); | |
490 | q_skba->os_skbs = fill_wqes - i; | |
491 | ret = 0; | |
492 | break; | |
493 | } | |
7a291083 JBT |
494 | |
495 | rwqe = ehea_get_next_rwqe(qp, rq_nr); | |
496 | rwqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, wqe_type) | |
d1d25aab | 497 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, index); |
7a291083 | 498 | rwqe->sg_list[0].l_key = pr->recv_mr.lkey; |
2c69448b | 499 | rwqe->sg_list[0].vaddr = tmp_addr; |
7a291083 JBT |
500 | rwqe->sg_list[0].len = packet_size; |
501 | rwqe->data_segments = 1; | |
502 | ||
503 | index++; | |
504 | index &= max_index_mask; | |
2c69448b | 505 | adder++; |
7a291083 | 506 | } |
44c82152 | 507 | |
7a291083 | 508 | q_skba->index = index; |
2c69448b JBT |
509 | if (adder == 0) |
510 | goto out; | |
7a291083 JBT |
511 | |
512 | /* Ring doorbell */ | |
513 | iosync(); | |
514 | if (rq_nr == 2) | |
2c69448b | 515 | ehea_update_rq2a(pr->qp, adder); |
7a291083 | 516 | else |
2c69448b | 517 | ehea_update_rq3a(pr->qp, adder); |
44c82152 | 518 | out: |
7a291083 JBT |
519 | return ret; |
520 | } | |
521 | ||
522 | ||
523 | static int ehea_refill_rq2(struct ehea_port_res *pr, int nr_of_wqes) | |
524 | { | |
525 | return ehea_refill_rq_def(pr, &pr->rq2_skba, 2, | |
526 | nr_of_wqes, EHEA_RWQE2_TYPE, | |
89d71a66 | 527 | EHEA_RQ2_PKT_SIZE); |
7a291083 JBT |
528 | } |
529 | ||
530 | ||
531 | static int ehea_refill_rq3(struct ehea_port_res *pr, int nr_of_wqes) | |
532 | { | |
533 | return ehea_refill_rq_def(pr, &pr->rq3_skba, 3, | |
534 | nr_of_wqes, EHEA_RWQE3_TYPE, | |
89d71a66 | 535 | EHEA_MAX_PACKET_SIZE); |
7a291083 JBT |
536 | } |
537 | ||
538 | static inline int ehea_check_cqe(struct ehea_cqe *cqe, int *rq_num) | |
539 | { | |
540 | *rq_num = (cqe->type & EHEA_CQE_TYPE_RQ) >> 5; | |
541 | if ((cqe->status & EHEA_CQE_STAT_ERR_MASK) == 0) | |
542 | return 0; | |
543 | if (((cqe->status & EHEA_CQE_STAT_ERR_TCP) != 0) && | |
544 | (cqe->header_length == 0)) | |
545 | return 0; | |
546 | return -EINVAL; | |
547 | } | |
548 | ||
549 | static inline void ehea_fill_skb(struct net_device *dev, | |
b9564468 AB |
550 | struct sk_buff *skb, struct ehea_cqe *cqe, |
551 | struct ehea_port_res *pr) | |
7a291083 JBT |
552 | { |
553 | int length = cqe->num_bytes_transfered - 4; /*remove CRC */ | |
554 | ||
555 | skb_put(skb, length); | |
7a291083 | 556 | skb->protocol = eth_type_trans(skb, dev); |
71085ce8 BL |
557 | |
558 | /* The packet was not an IPV4 packet so a complemented checksum was | |
559 | calculated. The value is found in the Internet Checksum field. */ | |
560 | if (cqe->status & EHEA_CQE_BLIND_CKSUM) { | |
561 | skb->ip_summed = CHECKSUM_COMPLETE; | |
562 | skb->csum = csum_unfold(~cqe->inet_checksum_value); | |
563 | } else | |
564 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
b9564468 AB |
565 | |
566 | skb_record_rx_queue(skb, pr - &pr->port->port_res[0]); | |
7a291083 JBT |
567 | } |
568 | ||
569 | static inline struct sk_buff *get_skb_by_index(struct sk_buff **skb_array, | |
570 | int arr_len, | |
571 | struct ehea_cqe *cqe) | |
572 | { | |
573 | int skb_index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
574 | struct sk_buff *skb; | |
575 | void *pref; | |
576 | int x; | |
577 | ||
578 | x = skb_index + 1; | |
579 | x &= (arr_len - 1); | |
580 | ||
581 | pref = skb_array[x]; | |
0b2febf3 HH |
582 | if (pref) { |
583 | prefetchw(pref); | |
584 | prefetchw(pref + EHEA_CACHE_LINE); | |
585 | ||
586 | pref = (skb_array[x]->data); | |
587 | prefetch(pref); | |
588 | prefetch(pref + EHEA_CACHE_LINE); | |
589 | prefetch(pref + EHEA_CACHE_LINE * 2); | |
590 | prefetch(pref + EHEA_CACHE_LINE * 3); | |
591 | } | |
592 | ||
7a291083 JBT |
593 | skb = skb_array[skb_index]; |
594 | skb_array[skb_index] = NULL; | |
595 | return skb; | |
596 | } | |
597 | ||
598 | static inline struct sk_buff *get_skb_by_index_ll(struct sk_buff **skb_array, | |
599 | int arr_len, int wqe_index) | |
600 | { | |
601 | struct sk_buff *skb; | |
602 | void *pref; | |
603 | int x; | |
604 | ||
605 | x = wqe_index + 1; | |
606 | x &= (arr_len - 1); | |
607 | ||
608 | pref = skb_array[x]; | |
0b2febf3 HH |
609 | if (pref) { |
610 | prefetchw(pref); | |
611 | prefetchw(pref + EHEA_CACHE_LINE); | |
7a291083 | 612 | |
0b2febf3 HH |
613 | pref = (skb_array[x]->data); |
614 | prefetchw(pref); | |
615 | prefetchw(pref + EHEA_CACHE_LINE); | |
616 | } | |
7a291083 JBT |
617 | |
618 | skb = skb_array[wqe_index]; | |
619 | skb_array[wqe_index] = NULL; | |
620 | return skb; | |
621 | } | |
622 | ||
623 | static int ehea_treat_poll_error(struct ehea_port_res *pr, int rq, | |
624 | struct ehea_cqe *cqe, int *processed_rq2, | |
625 | int *processed_rq3) | |
626 | { | |
627 | struct sk_buff *skb; | |
628 | ||
acbddb59 JBT |
629 | if (cqe->status & EHEA_CQE_STAT_ERR_TCP) |
630 | pr->p_stats.err_tcp_cksum++; | |
631 | if (cqe->status & EHEA_CQE_STAT_ERR_IP) | |
632 | pr->p_stats.err_ip_cksum++; | |
633 | if (cqe->status & EHEA_CQE_STAT_ERR_CRC) | |
634 | pr->p_stats.err_frame_crc++; | |
635 | ||
7a291083 JBT |
636 | if (rq == 2) { |
637 | *processed_rq2 += 1; | |
638 | skb = get_skb_by_index(pr->rq2_skba.arr, pr->rq2_skba.len, cqe); | |
639 | dev_kfree_skb(skb); | |
640 | } else if (rq == 3) { | |
641 | *processed_rq3 += 1; | |
642 | skb = get_skb_by_index(pr->rq3_skba.arr, pr->rq3_skba.len, cqe); | |
643 | dev_kfree_skb(skb); | |
644 | } | |
645 | ||
646 | if (cqe->status & EHEA_CQE_STAT_FAT_ERR_MASK) { | |
58dd8258 | 647 | if (netif_msg_rx_err(pr->port)) { |
8c4877a4 JP |
648 | pr_err("Critical receive error for QP %d. Resetting port.\n", |
649 | pr->qp->init_attr.qp_nr); | |
58dd8258 TK |
650 | ehea_dump(cqe, sizeof(*cqe), "CQE"); |
651 | } | |
2f69ae01 | 652 | ehea_schedule_port_reset(pr->port); |
7a291083 JBT |
653 | return 1; |
654 | } | |
655 | ||
656 | return 0; | |
657 | } | |
658 | ||
d4dc4ec9 JBT |
659 | static int get_skb_hdr(struct sk_buff *skb, void **iphdr, |
660 | void **tcph, u64 *hdr_flags, void *priv) | |
661 | { | |
662 | struct ehea_cqe *cqe = priv; | |
663 | unsigned int ip_len; | |
664 | struct iphdr *iph; | |
665 | ||
666 | /* non tcp/udp packets */ | |
667 | if (!cqe->header_length) | |
668 | return -1; | |
669 | ||
670 | /* non tcp packet */ | |
671 | skb_reset_network_header(skb); | |
672 | iph = ip_hdr(skb); | |
673 | if (iph->protocol != IPPROTO_TCP) | |
674 | return -1; | |
675 | ||
676 | ip_len = ip_hdrlen(skb); | |
677 | skb_set_transport_header(skb, ip_len); | |
678 | *tcph = tcp_hdr(skb); | |
679 | ||
680 | /* check if ip header and tcp header are complete */ | |
3ff2cd23 | 681 | if (ntohs(iph->tot_len) < ip_len + tcp_hdrlen(skb)) |
d4dc4ec9 JBT |
682 | return -1; |
683 | ||
684 | *hdr_flags = LRO_IPV4 | LRO_TCP; | |
685 | *iphdr = iph; | |
686 | ||
687 | return 0; | |
688 | } | |
689 | ||
690 | static void ehea_proc_skb(struct ehea_port_res *pr, struct ehea_cqe *cqe, | |
691 | struct sk_buff *skb) | |
692 | { | |
b4950095 JP |
693 | if (cqe->status & EHEA_CQE_VLAN_TAG_XTRACT) |
694 | __vlan_hwaccel_put_tag(skb, cqe->vlan_tag); | |
695 | ||
696 | if (skb->dev->features & NETIF_F_LRO) | |
697 | lro_receive_skb(&pr->lro_mgr, skb, cqe); | |
698 | else | |
699 | netif_receive_skb(skb); | |
d4dc4ec9 JBT |
700 | } |
701 | ||
bea3348e SH |
702 | static int ehea_proc_rwqes(struct net_device *dev, |
703 | struct ehea_port_res *pr, | |
704 | int budget) | |
7a291083 | 705 | { |
18604c54 | 706 | struct ehea_port *port = pr->port; |
7a291083 JBT |
707 | struct ehea_qp *qp = pr->qp; |
708 | struct ehea_cqe *cqe; | |
709 | struct sk_buff *skb; | |
710 | struct sk_buff **skb_arr_rq1 = pr->rq1_skba.arr; | |
711 | struct sk_buff **skb_arr_rq2 = pr->rq2_skba.arr; | |
712 | struct sk_buff **skb_arr_rq3 = pr->rq3_skba.arr; | |
713 | int skb_arr_rq1_len = pr->rq1_skba.len; | |
714 | int skb_arr_rq2_len = pr->rq2_skba.len; | |
715 | int skb_arr_rq3_len = pr->rq3_skba.len; | |
716 | int processed, processed_rq1, processed_rq2, processed_rq3; | |
ce45b873 | 717 | u64 processed_bytes = 0; |
bea3348e | 718 | int wqe_index, last_wqe_index, rq, port_reset; |
7a291083 JBT |
719 | |
720 | processed = processed_rq1 = processed_rq2 = processed_rq3 = 0; | |
721 | last_wqe_index = 0; | |
7a291083 | 722 | |
7a291083 | 723 | cqe = ehea_poll_rq1(qp, &wqe_index); |
bea3348e | 724 | while ((processed < budget) && cqe) { |
7a291083 JBT |
725 | ehea_inc_rq1(qp); |
726 | processed_rq1++; | |
727 | processed++; | |
7a291083 JBT |
728 | if (netif_msg_rx_status(port)) |
729 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
730 | ||
731 | last_wqe_index = wqe_index; | |
732 | rmb(); | |
733 | if (!ehea_check_cqe(cqe, &rq)) { | |
508d2b5d DM |
734 | if (rq == 1) { |
735 | /* LL RQ1 */ | |
7a291083 JBT |
736 | skb = get_skb_by_index_ll(skb_arr_rq1, |
737 | skb_arr_rq1_len, | |
738 | wqe_index); | |
739 | if (unlikely(!skb)) { | |
782615ae | 740 | netif_info(port, rx_err, dev, |
8c4877a4 | 741 | "LL rq1: skb=NULL\n"); |
18604c54 | 742 | |
bea3348e | 743 | skb = netdev_alloc_skb(dev, |
7a291083 | 744 | EHEA_L_PKT_SIZE); |
5c7e57f7 | 745 | if (!skb) { |
782615ae | 746 | netdev_err(dev, "Not enough memory to allocate skb\n"); |
7a291083 | 747 | break; |
5c7e57f7 | 748 | } |
7a291083 | 749 | } |
508d2b5d | 750 | skb_copy_to_linear_data(skb, ((char *)cqe) + 64, |
d1d25aab | 751 | cqe->num_bytes_transfered - 4); |
b9564468 | 752 | ehea_fill_skb(dev, skb, cqe, pr); |
508d2b5d DM |
753 | } else if (rq == 2) { |
754 | /* RQ2 */ | |
7a291083 JBT |
755 | skb = get_skb_by_index(skb_arr_rq2, |
756 | skb_arr_rq2_len, cqe); | |
757 | if (unlikely(!skb)) { | |
8c4877a4 JP |
758 | netif_err(port, rx_err, dev, |
759 | "rq2: skb=NULL\n"); | |
7a291083 JBT |
760 | break; |
761 | } | |
b9564468 | 762 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 | 763 | processed_rq2++; |
508d2b5d DM |
764 | } else { |
765 | /* RQ3 */ | |
7a291083 JBT |
766 | skb = get_skb_by_index(skb_arr_rq3, |
767 | skb_arr_rq3_len, cqe); | |
768 | if (unlikely(!skb)) { | |
8c4877a4 JP |
769 | netif_err(port, rx_err, dev, |
770 | "rq3: skb=NULL\n"); | |
7a291083 JBT |
771 | break; |
772 | } | |
b9564468 | 773 | ehea_fill_skb(dev, skb, cqe, pr); |
7a291083 JBT |
774 | processed_rq3++; |
775 | } | |
776 | ||
ce45b873 | 777 | processed_bytes += skb->len; |
d4dc4ec9 | 778 | ehea_proc_skb(pr, cqe, skb); |
18604c54 | 779 | } else { |
acbddb59 | 780 | pr->p_stats.poll_receive_errors++; |
7a291083 JBT |
781 | port_reset = ehea_treat_poll_error(pr, rq, cqe, |
782 | &processed_rq2, | |
783 | &processed_rq3); | |
784 | if (port_reset) | |
785 | break; | |
786 | } | |
787 | cqe = ehea_poll_rq1(qp, &wqe_index); | |
788 | } | |
c7757fdb | 789 | if (dev->features & NETIF_F_LRO) |
d4dc4ec9 | 790 | lro_flush_all(&pr->lro_mgr); |
7a291083 | 791 | |
7a291083 | 792 | pr->rx_packets += processed; |
ce45b873 | 793 | pr->rx_bytes += processed_bytes; |
7a291083 JBT |
794 | |
795 | ehea_refill_rq1(pr, last_wqe_index, processed_rq1); | |
796 | ehea_refill_rq2(pr, processed_rq2); | |
797 | ehea_refill_rq3(pr, processed_rq3); | |
798 | ||
bea3348e | 799 | return processed; |
7a291083 JBT |
800 | } |
801 | ||
2928db4c AD |
802 | #define SWQE_RESTART_CHECK 0xdeadbeaff00d0000ull |
803 | ||
804 | static void reset_sq_restart_flag(struct ehea_port *port) | |
805 | { | |
806 | int i; | |
807 | ||
723f28e4 | 808 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c AD |
809 | struct ehea_port_res *pr = &port->port_res[i]; |
810 | pr->sq_restart_flag = 0; | |
811 | } | |
a8bb69f7 | 812 | wake_up(&port->restart_wq); |
2928db4c AD |
813 | } |
814 | ||
815 | static void check_sqs(struct ehea_port *port) | |
816 | { | |
817 | struct ehea_swqe *swqe; | |
818 | int swqe_index; | |
819 | int i, k; | |
820 | ||
723f28e4 | 821 | for (i = 0; i < port->num_def_qps; i++) { |
2928db4c | 822 | struct ehea_port_res *pr = &port->port_res[i]; |
a8bb69f7 | 823 | int ret; |
2928db4c AD |
824 | k = 0; |
825 | swqe = ehea_get_swqe(pr->qp, &swqe_index); | |
826 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
827 | atomic_dec(&pr->swqe_avail); | |
828 | ||
829 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
830 | swqe->wr_id = SWQE_RESTART_CHECK; | |
831 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
832 | swqe->tx_control |= EHEA_SWQE_IMM_DATA_PRESENT; | |
833 | swqe->immediate_data_length = 80; | |
834 | ||
835 | ehea_post_swqe(pr->qp, swqe); | |
836 | ||
a8bb69f7 BL |
837 | ret = wait_event_timeout(port->restart_wq, |
838 | pr->sq_restart_flag == 0, | |
839 | msecs_to_jiffies(100)); | |
840 | ||
841 | if (!ret) { | |
8c4877a4 | 842 | pr_err("HW/SW queues out of sync\n"); |
a8bb69f7 BL |
843 | ehea_schedule_port_reset(pr->port); |
844 | return; | |
2928db4c AD |
845 | } |
846 | } | |
2928db4c AD |
847 | } |
848 | ||
849 | ||
18604c54 | 850 | static struct ehea_cqe *ehea_proc_cqes(struct ehea_port_res *pr, int my_quota) |
7a291083 | 851 | { |
acbddb59 | 852 | struct sk_buff *skb; |
7a291083 JBT |
853 | struct ehea_cq *send_cq = pr->send_cq; |
854 | struct ehea_cqe *cqe; | |
18604c54 | 855 | int quota = my_quota; |
7a291083 JBT |
856 | int cqe_counter = 0; |
857 | int swqe_av = 0; | |
acbddb59 | 858 | int index; |
b9564468 AB |
859 | struct netdev_queue *txq = netdev_get_tx_queue(pr->port->netdev, |
860 | pr - &pr->port->port_res[0]); | |
7a291083 | 861 | |
18604c54 | 862 | cqe = ehea_poll_cq(send_cq); |
508d2b5d | 863 | while (cqe && (quota > 0)) { |
18604c54 JBT |
864 | ehea_inc_cq(send_cq); |
865 | ||
7a291083 JBT |
866 | cqe_counter++; |
867 | rmb(); | |
2928db4c AD |
868 | |
869 | if (cqe->wr_id == SWQE_RESTART_CHECK) { | |
870 | pr->sq_restart_flag = 1; | |
871 | swqe_av++; | |
872 | break; | |
873 | } | |
874 | ||
7a291083 | 875 | if (cqe->status & EHEA_CQE_STAT_ERR_MASK) { |
8c4877a4 JP |
876 | pr_err("Bad send completion status=0x%04X\n", |
877 | cqe->status); | |
ea96ceac | 878 | |
7a291083 JBT |
879 | if (netif_msg_tx_err(pr->port)) |
880 | ehea_dump(cqe, sizeof(*cqe), "Send CQE"); | |
ea96ceac TK |
881 | |
882 | if (cqe->status & EHEA_CQE_STAT_RESET_MASK) { | |
8c4877a4 | 883 | pr_err("Resetting port\n"); |
ea96ceac TK |
884 | ehea_schedule_port_reset(pr->port); |
885 | break; | |
886 | } | |
7a291083 JBT |
887 | } |
888 | ||
889 | if (netif_msg_tx_done(pr->port)) | |
890 | ehea_dump(cqe, sizeof(*cqe), "CQE"); | |
891 | ||
892 | if (likely(EHEA_BMASK_GET(EHEA_WR_ID_TYPE, cqe->wr_id) | |
acbddb59 JBT |
893 | == EHEA_SWQE2_TYPE)) { |
894 | ||
895 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, cqe->wr_id); | |
896 | skb = pr->sq_skba.arr[index]; | |
897 | dev_kfree_skb(skb); | |
898 | pr->sq_skba.arr[index] = NULL; | |
899 | } | |
7a291083 JBT |
900 | |
901 | swqe_av += EHEA_BMASK_GET(EHEA_WR_ID_REFILL, cqe->wr_id); | |
902 | quota--; | |
18604c54 JBT |
903 | |
904 | cqe = ehea_poll_cq(send_cq); | |
ee289b64 | 905 | } |
7a291083 JBT |
906 | |
907 | ehea_update_feca(send_cq, cqe_counter); | |
908 | atomic_add(swqe_av, &pr->swqe_avail); | |
909 | ||
b9564468 AB |
910 | if (unlikely(netif_tx_queue_stopped(txq) && |
911 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th))) { | |
912 | __netif_tx_lock(txq, smp_processor_id()); | |
913 | if (netif_tx_queue_stopped(txq) && | |
914 | (atomic_read(&pr->swqe_avail) >= pr->swqe_refill_th)) | |
915 | netif_tx_wake_queue(txq); | |
916 | __netif_tx_unlock(txq); | |
7a291083 | 917 | } |
b9564468 | 918 | |
5b27d427 | 919 | wake_up(&pr->port->swqe_avail_wq); |
7a291083 | 920 | |
18604c54 | 921 | return cqe; |
7a291083 JBT |
922 | } |
923 | ||
bea3348e | 924 | #define EHEA_POLL_MAX_CQES 65535 |
18604c54 | 925 | |
bea3348e | 926 | static int ehea_poll(struct napi_struct *napi, int budget) |
7a291083 | 927 | { |
508d2b5d DM |
928 | struct ehea_port_res *pr = container_of(napi, struct ehea_port_res, |
929 | napi); | |
bea3348e | 930 | struct net_device *dev = pr->port->netdev; |
18604c54 JBT |
931 | struct ehea_cqe *cqe; |
932 | struct ehea_cqe *cqe_skb = NULL; | |
222ca96b | 933 | int wqe_index; |
bea3348e | 934 | int rx = 0; |
18604c54 | 935 | |
bea3348e | 936 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
222ca96b | 937 | rx += ehea_proc_rwqes(dev, pr, budget - rx); |
bea3348e | 938 | |
222ca96b | 939 | while (rx != budget) { |
288379f0 | 940 | napi_complete(napi); |
18604c54 JBT |
941 | ehea_reset_cq_ep(pr->recv_cq); |
942 | ehea_reset_cq_ep(pr->send_cq); | |
943 | ehea_reset_cq_n1(pr->recv_cq); | |
944 | ehea_reset_cq_n1(pr->send_cq); | |
a91fb143 | 945 | rmb(); |
18604c54 JBT |
946 | cqe = ehea_poll_rq1(pr->qp, &wqe_index); |
947 | cqe_skb = ehea_poll_cq(pr->send_cq); | |
948 | ||
e542aa6b | 949 | if (!cqe && !cqe_skb) |
bea3348e | 950 | return rx; |
18604c54 | 951 | |
288379f0 | 952 | if (!napi_reschedule(napi)) |
bea3348e | 953 | return rx; |
18604c54 | 954 | |
bea3348e SH |
955 | cqe_skb = ehea_proc_cqes(pr, EHEA_POLL_MAX_CQES); |
956 | rx += ehea_proc_rwqes(dev, pr, budget - rx); | |
957 | } | |
e542aa6b | 958 | |
bea3348e | 959 | return rx; |
7a291083 JBT |
960 | } |
961 | ||
8d22c971 JBT |
962 | #ifdef CONFIG_NET_POLL_CONTROLLER |
963 | static void ehea_netpoll(struct net_device *dev) | |
964 | { | |
965 | struct ehea_port *port = netdev_priv(dev); | |
bea3348e | 966 | int i; |
8d22c971 | 967 | |
bea3348e | 968 | for (i = 0; i < port->num_def_qps; i++) |
288379f0 | 969 | napi_schedule(&port->port_res[i].napi); |
8d22c971 JBT |
970 | } |
971 | #endif | |
972 | ||
7d12e780 | 973 | static irqreturn_t ehea_recv_irq_handler(int irq, void *param) |
7a291083 JBT |
974 | { |
975 | struct ehea_port_res *pr = param; | |
18604c54 | 976 | |
288379f0 | 977 | napi_schedule(&pr->napi); |
18604c54 | 978 | |
7a291083 JBT |
979 | return IRQ_HANDLED; |
980 | } | |
981 | ||
7d12e780 | 982 | static irqreturn_t ehea_qp_aff_irq_handler(int irq, void *param) |
7a291083 JBT |
983 | { |
984 | struct ehea_port *port = param; | |
985 | struct ehea_eqe *eqe; | |
d2db9eea | 986 | struct ehea_qp *qp; |
7a291083 | 987 | u32 qp_token; |
ea96ceac TK |
988 | u64 resource_type, aer, aerr; |
989 | int reset_port = 0; | |
7a291083 JBT |
990 | |
991 | eqe = ehea_poll_eq(port->qp_eq); | |
bb3a6449 | 992 | |
7a291083 | 993 | while (eqe) { |
7a291083 | 994 | qp_token = EHEA_BMASK_GET(EHEA_EQE_QP_TOKEN, eqe->entry); |
8c4877a4 JP |
995 | pr_err("QP aff_err: entry=0x%llx, token=0x%x\n", |
996 | eqe->entry, qp_token); | |
d2db9eea JBT |
997 | |
998 | qp = port->port_res[qp_token].qp; | |
ea96ceac TK |
999 | |
1000 | resource_type = ehea_error_data(port->adapter, qp->fw_handle, | |
1001 | &aer, &aerr); | |
1002 | ||
1003 | if (resource_type == EHEA_AER_RESTYPE_QP) { | |
1004 | if ((aer & EHEA_AER_RESET_MASK) || | |
1005 | (aerr & EHEA_AERR_RESET_MASK)) | |
1006 | reset_port = 1; | |
1007 | } else | |
1008 | reset_port = 1; /* Reset in case of CQ or EQ error */ | |
1009 | ||
bb3a6449 | 1010 | eqe = ehea_poll_eq(port->qp_eq); |
7a291083 JBT |
1011 | } |
1012 | ||
ea96ceac | 1013 | if (reset_port) { |
8c4877a4 | 1014 | pr_err("Resetting port\n"); |
ea96ceac TK |
1015 | ehea_schedule_port_reset(port); |
1016 | } | |
d2db9eea | 1017 | |
7a291083 JBT |
1018 | return IRQ_HANDLED; |
1019 | } | |
1020 | ||
1021 | static struct ehea_port *ehea_get_port(struct ehea_adapter *adapter, | |
1022 | int logical_port) | |
1023 | { | |
1024 | int i; | |
1025 | ||
1acf2318 | 1026 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
41b69c70 | 1027 | if (adapter->port[i]) |
d1d25aab | 1028 | if (adapter->port[i]->logical_port_id == logical_port) |
41b69c70 | 1029 | return adapter->port[i]; |
7a291083 JBT |
1030 | return NULL; |
1031 | } | |
1032 | ||
1033 | int ehea_sense_port_attr(struct ehea_port *port) | |
1034 | { | |
1035 | int ret; | |
1036 | u64 hret; | |
1037 | struct hcp_ehea_port_cb0 *cb0; | |
1038 | ||
508d2b5d | 1039 | /* may be called via ehea_neq_tasklet() */ |
3faf2693 | 1040 | cb0 = (void *)get_zeroed_page(GFP_ATOMIC); |
508d2b5d | 1041 | if (!cb0) { |
8c4877a4 | 1042 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1043 | ret = -ENOMEM; |
1044 | goto out; | |
1045 | } | |
1046 | ||
1047 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1048 | port->logical_port_id, H_PORT_CB0, | |
1049 | EHEA_BMASK_SET(H_PORT_CB0_ALL, 0xFFFF), | |
1050 | cb0); | |
1051 | if (hret != H_SUCCESS) { | |
1052 | ret = -EIO; | |
1053 | goto out_free; | |
1054 | } | |
1055 | ||
1056 | /* MAC address */ | |
1057 | port->mac_addr = cb0->port_mac_addr << 16; | |
1058 | ||
508d2b5d | 1059 | if (!is_valid_ether_addr((u8 *)&port->mac_addr)) { |
7a291083 JBT |
1060 | ret = -EADDRNOTAVAIL; |
1061 | goto out_free; | |
1062 | } | |
1063 | ||
1064 | /* Port speed */ | |
1065 | switch (cb0->port_speed) { | |
1066 | case H_SPEED_10M_H: | |
1067 | port->port_speed = EHEA_SPEED_10M; | |
1068 | port->full_duplex = 0; | |
1069 | break; | |
1070 | case H_SPEED_10M_F: | |
1071 | port->port_speed = EHEA_SPEED_10M; | |
1072 | port->full_duplex = 1; | |
1073 | break; | |
1074 | case H_SPEED_100M_H: | |
1075 | port->port_speed = EHEA_SPEED_100M; | |
1076 | port->full_duplex = 0; | |
1077 | break; | |
1078 | case H_SPEED_100M_F: | |
1079 | port->port_speed = EHEA_SPEED_100M; | |
1080 | port->full_duplex = 1; | |
1081 | break; | |
1082 | case H_SPEED_1G_F: | |
1083 | port->port_speed = EHEA_SPEED_1G; | |
1084 | port->full_duplex = 1; | |
1085 | break; | |
1086 | case H_SPEED_10G_F: | |
1087 | port->port_speed = EHEA_SPEED_10G; | |
1088 | port->full_duplex = 1; | |
1089 | break; | |
1090 | default: | |
1091 | port->port_speed = 0; | |
1092 | port->full_duplex = 0; | |
1093 | break; | |
1094 | } | |
1095 | ||
e919b593 | 1096 | port->autoneg = 1; |
18604c54 | 1097 | port->num_mcs = cb0->num_default_qps; |
e919b593 | 1098 | |
7a291083 | 1099 | /* Number of default QPs */ |
18604c54 JBT |
1100 | if (use_mcs) |
1101 | port->num_def_qps = cb0->num_default_qps; | |
1102 | else | |
1103 | port->num_def_qps = 1; | |
7a291083 JBT |
1104 | |
1105 | if (!port->num_def_qps) { | |
1106 | ret = -EINVAL; | |
1107 | goto out_free; | |
1108 | } | |
1109 | ||
7a291083 JBT |
1110 | ret = 0; |
1111 | out_free: | |
1112 | if (ret || netif_msg_probe(port)) | |
1113 | ehea_dump(cb0, sizeof(*cb0), "ehea_sense_port_attr"); | |
3faf2693 | 1114 | free_page((unsigned long)cb0); |
7a291083 JBT |
1115 | out: |
1116 | return ret; | |
1117 | } | |
1118 | ||
1119 | int ehea_set_portspeed(struct ehea_port *port, u32 port_speed) | |
1120 | { | |
1121 | struct hcp_ehea_port_cb4 *cb4; | |
1122 | u64 hret; | |
1123 | int ret = 0; | |
1124 | ||
3faf2693 | 1125 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1126 | if (!cb4) { |
8c4877a4 | 1127 | pr_err("no mem for cb4\n"); |
7a291083 JBT |
1128 | ret = -ENOMEM; |
1129 | goto out; | |
1130 | } | |
1131 | ||
1132 | cb4->port_speed = port_speed; | |
1133 | ||
1134 | netif_carrier_off(port->netdev); | |
1135 | ||
1136 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1137 | port->logical_port_id, | |
1138 | H_PORT_CB4, H_PORT_CB4_SPEED, cb4); | |
1139 | if (hret == H_SUCCESS) { | |
1140 | port->autoneg = port_speed == EHEA_SPEED_AUTONEG ? 1 : 0; | |
1141 | ||
1142 | hret = ehea_h_query_ehea_port(port->adapter->handle, | |
1143 | port->logical_port_id, | |
1144 | H_PORT_CB4, H_PORT_CB4_SPEED, | |
1145 | cb4); | |
1146 | if (hret == H_SUCCESS) { | |
1147 | switch (cb4->port_speed) { | |
1148 | case H_SPEED_10M_H: | |
1149 | port->port_speed = EHEA_SPEED_10M; | |
1150 | port->full_duplex = 0; | |
1151 | break; | |
1152 | case H_SPEED_10M_F: | |
1153 | port->port_speed = EHEA_SPEED_10M; | |
1154 | port->full_duplex = 1; | |
1155 | break; | |
1156 | case H_SPEED_100M_H: | |
1157 | port->port_speed = EHEA_SPEED_100M; | |
1158 | port->full_duplex = 0; | |
1159 | break; | |
1160 | case H_SPEED_100M_F: | |
1161 | port->port_speed = EHEA_SPEED_100M; | |
1162 | port->full_duplex = 1; | |
1163 | break; | |
1164 | case H_SPEED_1G_F: | |
1165 | port->port_speed = EHEA_SPEED_1G; | |
1166 | port->full_duplex = 1; | |
1167 | break; | |
1168 | case H_SPEED_10G_F: | |
1169 | port->port_speed = EHEA_SPEED_10G; | |
1170 | port->full_duplex = 1; | |
1171 | break; | |
1172 | default: | |
1173 | port->port_speed = 0; | |
1174 | port->full_duplex = 0; | |
1175 | break; | |
1176 | } | |
1177 | } else { | |
8c4877a4 | 1178 | pr_err("Failed sensing port speed\n"); |
7a291083 JBT |
1179 | ret = -EIO; |
1180 | } | |
1181 | } else { | |
1182 | if (hret == H_AUTHORITY) { | |
8c4877a4 | 1183 | pr_info("Hypervisor denied setting port speed\n"); |
7a291083 JBT |
1184 | ret = -EPERM; |
1185 | } else { | |
1186 | ret = -EIO; | |
8c4877a4 | 1187 | pr_err("Failed setting port speed\n"); |
7a291083 JBT |
1188 | } |
1189 | } | |
8759cf76 JBT |
1190 | if (!prop_carrier_state || (port->phy_link == EHEA_PHY_LINK_UP)) |
1191 | netif_carrier_on(port->netdev); | |
1192 | ||
3faf2693 | 1193 | free_page((unsigned long)cb4); |
7a291083 JBT |
1194 | out: |
1195 | return ret; | |
1196 | } | |
1197 | ||
1198 | static void ehea_parse_eqe(struct ehea_adapter *adapter, u64 eqe) | |
1199 | { | |
1200 | int ret; | |
1201 | u8 ec; | |
1202 | u8 portnum; | |
1203 | struct ehea_port *port; | |
8c4877a4 | 1204 | struct net_device *dev; |
7a291083 JBT |
1205 | |
1206 | ec = EHEA_BMASK_GET(NEQE_EVENT_CODE, eqe); | |
1207 | portnum = EHEA_BMASK_GET(NEQE_PORTNUM, eqe); | |
1208 | port = ehea_get_port(adapter, portnum); | |
8c4877a4 | 1209 | dev = port->netdev; |
7a291083 JBT |
1210 | |
1211 | switch (ec) { | |
1212 | case EHEA_EC_PORTSTATE_CHG: /* port state change */ | |
1213 | ||
1214 | if (!port) { | |
8c4877a4 | 1215 | netdev_err(dev, "unknown portnum %x\n", portnum); |
7a291083 JBT |
1216 | break; |
1217 | } | |
1218 | ||
1219 | if (EHEA_BMASK_GET(NEQE_PORT_UP, eqe)) { | |
8c4877a4 | 1220 | if (!netif_carrier_ok(dev)) { |
1e1675cc | 1221 | ret = ehea_sense_port_attr(port); |
7a291083 | 1222 | if (ret) { |
8c4877a4 | 1223 | netdev_err(dev, "failed resensing port attributes\n"); |
7a291083 JBT |
1224 | break; |
1225 | } | |
1226 | ||
8c4877a4 JP |
1227 | netif_info(port, link, dev, |
1228 | "Logical port up: %dMbps %s Duplex\n", | |
1229 | port->port_speed, | |
1230 | port->full_duplex == 1 ? | |
1231 | "Full" : "Half"); | |
7a291083 | 1232 | |
8c4877a4 JP |
1233 | netif_carrier_on(dev); |
1234 | netif_wake_queue(dev); | |
7a291083 JBT |
1235 | } |
1236 | } else | |
8c4877a4 JP |
1237 | if (netif_carrier_ok(dev)) { |
1238 | netif_info(port, link, dev, | |
1239 | "Logical port down\n"); | |
1240 | netif_carrier_off(dev); | |
b9564468 | 1241 | netif_tx_disable(dev); |
7a291083 JBT |
1242 | } |
1243 | ||
1244 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PORT_UP, eqe)) { | |
8759cf76 | 1245 | port->phy_link = EHEA_PHY_LINK_UP; |
8c4877a4 JP |
1246 | netif_info(port, link, dev, |
1247 | "Physical port up\n"); | |
8759cf76 | 1248 | if (prop_carrier_state) |
8c4877a4 | 1249 | netif_carrier_on(dev); |
7a291083 | 1250 | } else { |
8759cf76 | 1251 | port->phy_link = EHEA_PHY_LINK_DOWN; |
8c4877a4 JP |
1252 | netif_info(port, link, dev, |
1253 | "Physical port down\n"); | |
8759cf76 | 1254 | if (prop_carrier_state) |
8c4877a4 | 1255 | netif_carrier_off(dev); |
7a291083 JBT |
1256 | } |
1257 | ||
1258 | if (EHEA_BMASK_GET(NEQE_EXTSWITCH_PRIMARY, eqe)) | |
8c4877a4 JP |
1259 | netdev_info(dev, |
1260 | "External switch port is primary port\n"); | |
7a291083 | 1261 | else |
8c4877a4 JP |
1262 | netdev_info(dev, |
1263 | "External switch port is backup port\n"); | |
7a291083 JBT |
1264 | |
1265 | break; | |
1266 | case EHEA_EC_ADAPTER_MALFUNC: | |
8c4877a4 | 1267 | netdev_err(dev, "Adapter malfunction\n"); |
7a291083 JBT |
1268 | break; |
1269 | case EHEA_EC_PORT_MALFUNC: | |
8c4877a4 JP |
1270 | netdev_info(dev, "Port malfunction\n"); |
1271 | netif_carrier_off(dev); | |
b9564468 | 1272 | netif_tx_disable(dev); |
7a291083 JBT |
1273 | break; |
1274 | default: | |
8c4877a4 | 1275 | netdev_err(dev, "unknown event code %x, eqe=0x%llX\n", ec, eqe); |
7a291083 JBT |
1276 | break; |
1277 | } | |
1278 | } | |
1279 | ||
1280 | static void ehea_neq_tasklet(unsigned long data) | |
1281 | { | |
508d2b5d | 1282 | struct ehea_adapter *adapter = (struct ehea_adapter *)data; |
7a291083 JBT |
1283 | struct ehea_eqe *eqe; |
1284 | u64 event_mask; | |
1285 | ||
1286 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1287 | pr_debug("eqe=%p\n", eqe); |
7a291083 JBT |
1288 | |
1289 | while (eqe) { | |
8c4877a4 | 1290 | pr_debug("*eqe=%lx\n", (unsigned long) eqe->entry); |
7a291083 JBT |
1291 | ehea_parse_eqe(adapter, eqe->entry); |
1292 | eqe = ehea_poll_eq(adapter->neq); | |
8c4877a4 | 1293 | pr_debug("next eqe=%p\n", eqe); |
7a291083 JBT |
1294 | } |
1295 | ||
1296 | event_mask = EHEA_BMASK_SET(NELR_PORTSTATE_CHG, 1) | |
1297 | | EHEA_BMASK_SET(NELR_ADAPTER_MALFUNC, 1) | |
1298 | | EHEA_BMASK_SET(NELR_PORT_MALFUNC, 1); | |
1299 | ||
1300 | ehea_h_reset_events(adapter->handle, | |
1301 | adapter->neq->fw_handle, event_mask); | |
1302 | } | |
1303 | ||
7d12e780 | 1304 | static irqreturn_t ehea_interrupt_neq(int irq, void *param) |
7a291083 JBT |
1305 | { |
1306 | struct ehea_adapter *adapter = param; | |
1307 | tasklet_hi_schedule(&adapter->neq_tasklet); | |
1308 | return IRQ_HANDLED; | |
1309 | } | |
1310 | ||
1311 | ||
1312 | static int ehea_fill_port_res(struct ehea_port_res *pr) | |
1313 | { | |
1314 | int ret; | |
1315 | struct ehea_qp_init_attr *init_attr = &pr->qp->init_attr; | |
1316 | ||
f76957fc | 1317 | ehea_init_fill_rq1(pr, pr->rq1_skba.len); |
7a291083 | 1318 | |
e2878806 | 1319 | ret = ehea_refill_rq2(pr, init_attr->act_nr_rwqes_rq2 - 1); |
7a291083 JBT |
1320 | |
1321 | ret |= ehea_refill_rq3(pr, init_attr->act_nr_rwqes_rq3 - 1); | |
1322 | ||
1323 | return ret; | |
1324 | } | |
1325 | ||
1326 | static int ehea_reg_interrupts(struct net_device *dev) | |
1327 | { | |
1328 | struct ehea_port *port = netdev_priv(dev); | |
1329 | struct ehea_port_res *pr; | |
1330 | int i, ret; | |
1331 | ||
7a291083 JBT |
1332 | |
1333 | snprintf(port->int_aff_name, EHEA_IRQ_NAME_SIZE - 1, "%s-aff", | |
1334 | dev->name); | |
1335 | ||
6b08f3ae | 1336 | ret = ibmebus_request_irq(port->qp_eq->attr.ist1, |
7a291083 | 1337 | ehea_qp_aff_irq_handler, |
38515e90 | 1338 | IRQF_DISABLED, port->int_aff_name, port); |
7a291083 | 1339 | if (ret) { |
8c4877a4 JP |
1340 | netdev_err(dev, "failed registering irq for qp_aff_irq_handler:ist=%X\n", |
1341 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1342 | goto out_free_qpeq; |
1343 | } | |
1344 | ||
8c4877a4 JP |
1345 | netif_info(port, ifup, dev, |
1346 | "irq_handle 0x%X for function qp_aff_irq_handler registered\n", | |
1347 | port->qp_eq->attr.ist1); | |
7a291083 | 1348 | |
18604c54 | 1349 | |
723f28e4 | 1350 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
1351 | pr = &port->port_res[i]; |
1352 | snprintf(pr->int_send_name, EHEA_IRQ_NAME_SIZE - 1, | |
18604c54 | 1353 | "%s-queue%d", dev->name, i); |
6b08f3ae | 1354 | ret = ibmebus_request_irq(pr->eq->attr.ist1, |
18604c54 | 1355 | ehea_recv_irq_handler, |
38515e90 | 1356 | IRQF_DISABLED, pr->int_send_name, |
7a291083 JBT |
1357 | pr); |
1358 | if (ret) { | |
8c4877a4 JP |
1359 | netdev_err(dev, "failed registering irq for ehea_queue port_res_nr:%d, ist=%X\n", |
1360 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1361 | goto out_free_req; |
1362 | } | |
8c4877a4 JP |
1363 | netif_info(port, ifup, dev, |
1364 | "irq_handle 0x%X for function ehea_queue_int %d registered\n", | |
1365 | pr->eq->attr.ist1, i); | |
7a291083 JBT |
1366 | } |
1367 | out: | |
1368 | return ret; | |
1369 | ||
18604c54 | 1370 | |
7a291083 JBT |
1371 | out_free_req: |
1372 | while (--i >= 0) { | |
18604c54 | 1373 | u32 ist = port->port_res[i].eq->attr.ist1; |
6b08f3ae | 1374 | ibmebus_free_irq(ist, &port->port_res[i]); |
7a291083 | 1375 | } |
18604c54 | 1376 | |
7a291083 | 1377 | out_free_qpeq: |
6b08f3ae | 1378 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
7a291083 | 1379 | i = port->num_def_qps; |
18604c54 | 1380 | |
7a291083 | 1381 | goto out; |
18604c54 | 1382 | |
7a291083 JBT |
1383 | } |
1384 | ||
1385 | static void ehea_free_interrupts(struct net_device *dev) | |
1386 | { | |
1387 | struct ehea_port *port = netdev_priv(dev); | |
1388 | struct ehea_port_res *pr; | |
1389 | int i; | |
1390 | ||
1391 | /* send */ | |
18604c54 | 1392 | |
723f28e4 | 1393 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 | 1394 | pr = &port->port_res[i]; |
6b08f3ae | 1395 | ibmebus_free_irq(pr->eq->attr.ist1, pr); |
8c4877a4 JP |
1396 | netif_info(port, intr, dev, |
1397 | "free send irq for res %d with handle 0x%X\n", | |
1398 | i, pr->eq->attr.ist1); | |
7a291083 JBT |
1399 | } |
1400 | ||
1401 | /* associated events */ | |
6b08f3ae | 1402 | ibmebus_free_irq(port->qp_eq->attr.ist1, port); |
8c4877a4 JP |
1403 | netif_info(port, intr, dev, |
1404 | "associated event interrupt for handle 0x%X freed\n", | |
1405 | port->qp_eq->attr.ist1); | |
7a291083 JBT |
1406 | } |
1407 | ||
1408 | static int ehea_configure_port(struct ehea_port *port) | |
1409 | { | |
1410 | int ret, i; | |
1411 | u64 hret, mask; | |
1412 | struct hcp_ehea_port_cb0 *cb0; | |
1413 | ||
1414 | ret = -ENOMEM; | |
3faf2693 | 1415 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
1416 | if (!cb0) |
1417 | goto out; | |
1418 | ||
1419 | cb0->port_rc = EHEA_BMASK_SET(PXLY_RC_VALID, 1) | |
1420 | | EHEA_BMASK_SET(PXLY_RC_IP_CHKSUM, 1) | |
1421 | | EHEA_BMASK_SET(PXLY_RC_TCP_UDP_CHKSUM, 1) | |
1422 | | EHEA_BMASK_SET(PXLY_RC_VLAN_XTRACT, 1) | |
1423 | | EHEA_BMASK_SET(PXLY_RC_VLAN_TAG_FILTER, | |
1424 | PXLY_RC_VLAN_FILTER) | |
1425 | | EHEA_BMASK_SET(PXLY_RC_JUMBO_FRAME, 1); | |
1426 | ||
18604c54 JBT |
1427 | for (i = 0; i < port->num_mcs; i++) |
1428 | if (use_mcs) | |
1429 | cb0->default_qpn_arr[i] = | |
1430 | port->port_res[i].qp->init_attr.qp_nr; | |
1431 | else | |
1432 | cb0->default_qpn_arr[i] = | |
1433 | port->port_res[0].qp->init_attr.qp_nr; | |
e542aa6b | 1434 | |
7a291083 JBT |
1435 | if (netif_msg_ifup(port)) |
1436 | ehea_dump(cb0, sizeof(*cb0), "ehea_configure_port"); | |
1437 | ||
1438 | mask = EHEA_BMASK_SET(H_PORT_CB0_PRC, 1) | |
1439 | | EHEA_BMASK_SET(H_PORT_CB0_DEFQPNARRAY, 1); | |
1440 | ||
1441 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1442 | port->logical_port_id, | |
1443 | H_PORT_CB0, mask, cb0); | |
1444 | ret = -EIO; | |
1445 | if (hret != H_SUCCESS) | |
1446 | goto out_free; | |
1447 | ||
1448 | ret = 0; | |
1449 | ||
1450 | out_free: | |
3faf2693 | 1451 | free_page((unsigned long)cb0); |
7a291083 JBT |
1452 | out: |
1453 | return ret; | |
1454 | } | |
1455 | ||
e542aa6b | 1456 | int ehea_gen_smrs(struct ehea_port_res *pr) |
7a291083 | 1457 | { |
e542aa6b | 1458 | int ret; |
7a291083 JBT |
1459 | struct ehea_adapter *adapter = pr->port->adapter; |
1460 | ||
e542aa6b JBT |
1461 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->send_mr); |
1462 | if (ret) | |
7a291083 JBT |
1463 | goto out; |
1464 | ||
e542aa6b JBT |
1465 | ret = ehea_gen_smr(adapter, &adapter->mr, &pr->recv_mr); |
1466 | if (ret) | |
1467 | goto out_free; | |
7a291083 JBT |
1468 | |
1469 | return 0; | |
1470 | ||
e542aa6b JBT |
1471 | out_free: |
1472 | ehea_rem_mr(&pr->send_mr); | |
7a291083 | 1473 | out: |
8c4877a4 | 1474 | pr_err("Generating SMRS failed\n"); |
7a291083 JBT |
1475 | return -EIO; |
1476 | } | |
1477 | ||
e542aa6b | 1478 | int ehea_rem_smrs(struct ehea_port_res *pr) |
7a291083 | 1479 | { |
8e95a202 JP |
1480 | if ((ehea_rem_mr(&pr->send_mr)) || |
1481 | (ehea_rem_mr(&pr->recv_mr))) | |
e542aa6b JBT |
1482 | return -EIO; |
1483 | else | |
1484 | return 0; | |
7a291083 JBT |
1485 | } |
1486 | ||
1487 | static int ehea_init_q_skba(struct ehea_q_skb_arr *q_skba, int max_q_entries) | |
1488 | { | |
508d2b5d | 1489 | int arr_size = sizeof(void *) * max_q_entries; |
7a291083 | 1490 | |
89bf67f1 | 1491 | q_skba->arr = vzalloc(arr_size); |
7a291083 JBT |
1492 | if (!q_skba->arr) |
1493 | return -ENOMEM; | |
1494 | ||
7a291083 JBT |
1495 | q_skba->len = max_q_entries; |
1496 | q_skba->index = 0; | |
1497 | q_skba->os_skbs = 0; | |
1498 | ||
1499 | return 0; | |
1500 | } | |
1501 | ||
1502 | static int ehea_init_port_res(struct ehea_port *port, struct ehea_port_res *pr, | |
1503 | struct port_res_cfg *pr_cfg, int queue_token) | |
1504 | { | |
1505 | struct ehea_adapter *adapter = port->adapter; | |
1506 | enum ehea_eq_type eq_type = EHEA_EQ; | |
1507 | struct ehea_qp_init_attr *init_attr = NULL; | |
1508 | int ret = -EIO; | |
ce45b873 BL |
1509 | u64 tx_bytes, rx_bytes, tx_packets, rx_packets; |
1510 | ||
1511 | tx_bytes = pr->tx_bytes; | |
1512 | tx_packets = pr->tx_packets; | |
1513 | rx_bytes = pr->rx_bytes; | |
1514 | rx_packets = pr->rx_packets; | |
7a291083 JBT |
1515 | |
1516 | memset(pr, 0, sizeof(struct ehea_port_res)); | |
1517 | ||
ce45b873 BL |
1518 | pr->tx_bytes = rx_bytes; |
1519 | pr->tx_packets = tx_packets; | |
1520 | pr->rx_bytes = rx_bytes; | |
1521 | pr->rx_packets = rx_packets; | |
1522 | ||
7a291083 | 1523 | pr->port = port; |
7a291083 | 1524 | |
18604c54 JBT |
1525 | pr->eq = ehea_create_eq(adapter, eq_type, EHEA_MAX_ENTRIES_EQ, 0); |
1526 | if (!pr->eq) { | |
8c4877a4 | 1527 | pr_err("create_eq failed (eq)\n"); |
7a291083 JBT |
1528 | goto out_free; |
1529 | } | |
1530 | ||
1531 | pr->recv_cq = ehea_create_cq(adapter, pr_cfg->max_entries_rcq, | |
18604c54 | 1532 | pr->eq->fw_handle, |
7a291083 JBT |
1533 | port->logical_port_id); |
1534 | if (!pr->recv_cq) { | |
8c4877a4 | 1535 | pr_err("create_cq failed (cq_recv)\n"); |
7a291083 JBT |
1536 | goto out_free; |
1537 | } | |
1538 | ||
1539 | pr->send_cq = ehea_create_cq(adapter, pr_cfg->max_entries_scq, | |
18604c54 | 1540 | pr->eq->fw_handle, |
7a291083 JBT |
1541 | port->logical_port_id); |
1542 | if (!pr->send_cq) { | |
8c4877a4 | 1543 | pr_err("create_cq failed (cq_send)\n"); |
7a291083 JBT |
1544 | goto out_free; |
1545 | } | |
1546 | ||
1547 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1548 | pr_info("Send CQ: act_nr_cqes=%d, Recv CQ: act_nr_cqes=%d\n", |
1549 | pr->send_cq->attr.act_nr_of_cqes, | |
1550 | pr->recv_cq->attr.act_nr_of_cqes); | |
7a291083 JBT |
1551 | |
1552 | init_attr = kzalloc(sizeof(*init_attr), GFP_KERNEL); | |
1553 | if (!init_attr) { | |
1554 | ret = -ENOMEM; | |
8c4877a4 | 1555 | pr_err("no mem for ehea_qp_init_attr\n"); |
7a291083 JBT |
1556 | goto out_free; |
1557 | } | |
1558 | ||
1559 | init_attr->low_lat_rq1 = 1; | |
1560 | init_attr->signalingtype = 1; /* generate CQE if specified in WQE */ | |
1561 | init_attr->rq_count = 3; | |
1562 | init_attr->qp_token = queue_token; | |
1563 | init_attr->max_nr_send_wqes = pr_cfg->max_entries_sq; | |
1564 | init_attr->max_nr_rwqes_rq1 = pr_cfg->max_entries_rq1; | |
1565 | init_attr->max_nr_rwqes_rq2 = pr_cfg->max_entries_rq2; | |
1566 | init_attr->max_nr_rwqes_rq3 = pr_cfg->max_entries_rq3; | |
1567 | init_attr->wqe_size_enc_sq = EHEA_SG_SQ; | |
1568 | init_attr->wqe_size_enc_rq1 = EHEA_SG_RQ1; | |
1569 | init_attr->wqe_size_enc_rq2 = EHEA_SG_RQ2; | |
1570 | init_attr->wqe_size_enc_rq3 = EHEA_SG_RQ3; | |
1571 | init_attr->rq2_threshold = EHEA_RQ2_THRESHOLD; | |
1572 | init_attr->rq3_threshold = EHEA_RQ3_THRESHOLD; | |
1573 | init_attr->port_nr = port->logical_port_id; | |
1574 | init_attr->send_cq_handle = pr->send_cq->fw_handle; | |
1575 | init_attr->recv_cq_handle = pr->recv_cq->fw_handle; | |
1576 | init_attr->aff_eq_handle = port->qp_eq->fw_handle; | |
1577 | ||
1578 | pr->qp = ehea_create_qp(adapter, adapter->pd, init_attr); | |
1579 | if (!pr->qp) { | |
8c4877a4 | 1580 | pr_err("create_qp failed\n"); |
7a291083 JBT |
1581 | ret = -EIO; |
1582 | goto out_free; | |
1583 | } | |
1584 | ||
1585 | if (netif_msg_ifup(port)) | |
8c4877a4 JP |
1586 | 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", |
1587 | init_attr->qp_nr, | |
1588 | init_attr->act_nr_send_wqes, | |
1589 | init_attr->act_nr_rwqes_rq1, | |
1590 | init_attr->act_nr_rwqes_rq2, | |
1591 | init_attr->act_nr_rwqes_rq3); | |
7a291083 | 1592 | |
44fb3126 TK |
1593 | pr->sq_skba_size = init_attr->act_nr_send_wqes + 1; |
1594 | ||
1595 | ret = ehea_init_q_skba(&pr->sq_skba, pr->sq_skba_size); | |
7a291083 JBT |
1596 | ret |= ehea_init_q_skba(&pr->rq1_skba, init_attr->act_nr_rwqes_rq1 + 1); |
1597 | ret |= ehea_init_q_skba(&pr->rq2_skba, init_attr->act_nr_rwqes_rq2 + 1); | |
1598 | ret |= ehea_init_q_skba(&pr->rq3_skba, init_attr->act_nr_rwqes_rq3 + 1); | |
1599 | if (ret) | |
1600 | goto out_free; | |
1601 | ||
1602 | pr->swqe_refill_th = init_attr->act_nr_send_wqes / 10; | |
1603 | if (ehea_gen_smrs(pr) != 0) { | |
1604 | ret = -EIO; | |
1605 | goto out_free; | |
1606 | } | |
18604c54 | 1607 | |
7a291083 JBT |
1608 | atomic_set(&pr->swqe_avail, init_attr->act_nr_send_wqes - 1); |
1609 | ||
1610 | kfree(init_attr); | |
18604c54 | 1611 | |
bea3348e | 1612 | netif_napi_add(pr->port->netdev, &pr->napi, ehea_poll, 64); |
18604c54 | 1613 | |
d4dc4ec9 JBT |
1614 | pr->lro_mgr.max_aggr = pr->port->lro_max_aggr; |
1615 | pr->lro_mgr.max_desc = MAX_LRO_DESCRIPTORS; | |
1616 | pr->lro_mgr.lro_arr = pr->lro_desc; | |
1617 | pr->lro_mgr.get_skb_header = get_skb_hdr; | |
1618 | pr->lro_mgr.features = LRO_F_NAPI | LRO_F_EXTRACT_VLAN_ID; | |
1619 | pr->lro_mgr.dev = port->netdev; | |
1620 | pr->lro_mgr.ip_summed = CHECKSUM_UNNECESSARY; | |
1621 | pr->lro_mgr.ip_summed_aggr = CHECKSUM_UNNECESSARY; | |
1622 | ||
7a291083 JBT |
1623 | ret = 0; |
1624 | goto out; | |
1625 | ||
1626 | out_free: | |
1627 | kfree(init_attr); | |
1628 | vfree(pr->sq_skba.arr); | |
1629 | vfree(pr->rq1_skba.arr); | |
1630 | vfree(pr->rq2_skba.arr); | |
1631 | vfree(pr->rq3_skba.arr); | |
1632 | ehea_destroy_qp(pr->qp); | |
1633 | ehea_destroy_cq(pr->send_cq); | |
1634 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1635 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1636 | out: |
1637 | return ret; | |
1638 | } | |
1639 | ||
1640 | static int ehea_clean_portres(struct ehea_port *port, struct ehea_port_res *pr) | |
1641 | { | |
1642 | int ret, i; | |
1643 | ||
357eb46d HH |
1644 | if (pr->qp) |
1645 | netif_napi_del(&pr->napi); | |
1646 | ||
7a291083 JBT |
1647 | ret = ehea_destroy_qp(pr->qp); |
1648 | ||
1649 | if (!ret) { | |
1650 | ehea_destroy_cq(pr->send_cq); | |
1651 | ehea_destroy_cq(pr->recv_cq); | |
18604c54 | 1652 | ehea_destroy_eq(pr->eq); |
7a291083 JBT |
1653 | |
1654 | for (i = 0; i < pr->rq1_skba.len; i++) | |
1655 | if (pr->rq1_skba.arr[i]) | |
1656 | dev_kfree_skb(pr->rq1_skba.arr[i]); | |
1657 | ||
1658 | for (i = 0; i < pr->rq2_skba.len; i++) | |
1659 | if (pr->rq2_skba.arr[i]) | |
1660 | dev_kfree_skb(pr->rq2_skba.arr[i]); | |
1661 | ||
1662 | for (i = 0; i < pr->rq3_skba.len; i++) | |
1663 | if (pr->rq3_skba.arr[i]) | |
1664 | dev_kfree_skb(pr->rq3_skba.arr[i]); | |
1665 | ||
1666 | for (i = 0; i < pr->sq_skba.len; i++) | |
1667 | if (pr->sq_skba.arr[i]) | |
1668 | dev_kfree_skb(pr->sq_skba.arr[i]); | |
1669 | ||
1670 | vfree(pr->rq1_skba.arr); | |
1671 | vfree(pr->rq2_skba.arr); | |
1672 | vfree(pr->rq3_skba.arr); | |
1673 | vfree(pr->sq_skba.arr); | |
1674 | ret = ehea_rem_smrs(pr); | |
1675 | } | |
1676 | return ret; | |
1677 | } | |
1678 | ||
1679 | /* | |
1680 | * The write_* functions store information in swqe which is used by | |
1681 | * the hardware to calculate the ip/tcp/udp checksum | |
1682 | */ | |
1683 | ||
1684 | static inline void write_ip_start_end(struct ehea_swqe *swqe, | |
1685 | const struct sk_buff *skb) | |
1686 | { | |
eddc9ec5 | 1687 | swqe->ip_start = skb_network_offset(skb); |
c9bdd4b5 | 1688 | swqe->ip_end = (u8)(swqe->ip_start + ip_hdrlen(skb) - 1); |
7a291083 JBT |
1689 | } |
1690 | ||
1691 | static inline void write_tcp_offset_end(struct ehea_swqe *swqe, | |
1692 | const struct sk_buff *skb) | |
1693 | { | |
1694 | swqe->tcp_offset = | |
1695 | (u8)(swqe->ip_end + 1 + offsetof(struct tcphdr, check)); | |
1696 | ||
1697 | swqe->tcp_end = (u16)skb->len - 1; | |
1698 | } | |
1699 | ||
1700 | static inline void write_udp_offset_end(struct ehea_swqe *swqe, | |
1701 | const struct sk_buff *skb) | |
1702 | { | |
1703 | swqe->tcp_offset = | |
1704 | (u8)(swqe->ip_end + 1 + offsetof(struct udphdr, check)); | |
1705 | ||
1706 | swqe->tcp_end = (u16)skb->len - 1; | |
1707 | } | |
1708 | ||
1709 | ||
1710 | static void write_swqe2_TSO(struct sk_buff *skb, | |
1711 | struct ehea_swqe *swqe, u32 lkey) | |
1712 | { | |
1713 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
1714 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; | |
e743d313 | 1715 | int skb_data_size = skb_headlen(skb); |
7a291083 | 1716 | int headersize; |
7a291083 JBT |
1717 | |
1718 | /* Packet is TCP with TSO enabled */ | |
1719 | swqe->tx_control |= EHEA_SWQE_TSO; | |
1720 | swqe->mss = skb_shinfo(skb)->gso_size; | |
1721 | /* copy only eth/ip/tcp headers to immediate data and | |
1722 | * the rest of skb->data to sg1entry | |
1723 | */ | |
ab6a5bb6 | 1724 | headersize = ETH_HLEN + ip_hdrlen(skb) + tcp_hdrlen(skb); |
7a291083 | 1725 | |
e743d313 | 1726 | skb_data_size = skb_headlen(skb); |
7a291083 JBT |
1727 | |
1728 | if (skb_data_size >= headersize) { | |
1729 | /* copy immediate data */ | |
d626f62b | 1730 | skb_copy_from_linear_data(skb, imm_data, headersize); |
7a291083 JBT |
1731 | swqe->immediate_data_length = headersize; |
1732 | ||
1733 | if (skb_data_size > headersize) { | |
1734 | /* set sg1entry data */ | |
1735 | sg1entry->l_key = lkey; | |
1736 | sg1entry->len = skb_data_size - headersize; | |
44a5b3d5 TK |
1737 | sg1entry->vaddr = |
1738 | ehea_map_vaddr(skb->data + headersize); | |
7a291083 JBT |
1739 | swqe->descriptors++; |
1740 | } | |
1741 | } else | |
8c4877a4 | 1742 | pr_err("cannot handle fragmented headers\n"); |
7a291083 JBT |
1743 | } |
1744 | ||
1745 | static void write_swqe2_nonTSO(struct sk_buff *skb, | |
1746 | struct ehea_swqe *swqe, u32 lkey) | |
1747 | { | |
e743d313 | 1748 | int skb_data_size = skb_headlen(skb); |
7a291083 JBT |
1749 | u8 *imm_data = &swqe->u.immdata_desc.immediate_data[0]; |
1750 | struct ehea_vsgentry *sg1entry = &swqe->u.immdata_desc.sg_entry; | |
7a291083 JBT |
1751 | |
1752 | /* Packet is any nonTSO type | |
1753 | * | |
1754 | * Copy as much as possible skb->data to immediate data and | |
1755 | * the rest to sg1entry | |
1756 | */ | |
1757 | if (skb_data_size >= SWQE2_MAX_IMM) { | |
1758 | /* copy immediate data */ | |
d626f62b | 1759 | skb_copy_from_linear_data(skb, imm_data, SWQE2_MAX_IMM); |
7a291083 JBT |
1760 | |
1761 | swqe->immediate_data_length = SWQE2_MAX_IMM; | |
1762 | ||
1763 | if (skb_data_size > SWQE2_MAX_IMM) { | |
1764 | /* copy sg1entry data */ | |
1765 | sg1entry->l_key = lkey; | |
1766 | sg1entry->len = skb_data_size - SWQE2_MAX_IMM; | |
44a5b3d5 TK |
1767 | sg1entry->vaddr = |
1768 | ehea_map_vaddr(skb->data + SWQE2_MAX_IMM); | |
7a291083 JBT |
1769 | swqe->descriptors++; |
1770 | } | |
1771 | } else { | |
d626f62b | 1772 | skb_copy_from_linear_data(skb, imm_data, skb_data_size); |
7a291083 JBT |
1773 | swqe->immediate_data_length = skb_data_size; |
1774 | } | |
1775 | } | |
1776 | ||
1777 | static inline void write_swqe2_data(struct sk_buff *skb, struct net_device *dev, | |
1778 | struct ehea_swqe *swqe, u32 lkey) | |
1779 | { | |
1780 | struct ehea_vsgentry *sg_list, *sg1entry, *sgentry; | |
1781 | skb_frag_t *frag; | |
1782 | int nfrags, sg1entry_contains_frag_data, i; | |
7a291083 JBT |
1783 | |
1784 | nfrags = skb_shinfo(skb)->nr_frags; | |
1785 | sg1entry = &swqe->u.immdata_desc.sg_entry; | |
508d2b5d | 1786 | sg_list = (struct ehea_vsgentry *)&swqe->u.immdata_desc.sg_list; |
7a291083 JBT |
1787 | swqe->descriptors = 0; |
1788 | sg1entry_contains_frag_data = 0; | |
1789 | ||
921ddc19 | 1790 | if (skb_is_gso(skb)) |
7a291083 JBT |
1791 | write_swqe2_TSO(skb, swqe, lkey); |
1792 | else | |
1793 | write_swqe2_nonTSO(skb, swqe, lkey); | |
1794 | ||
1795 | /* write descriptors */ | |
1796 | if (nfrags > 0) { | |
1797 | if (swqe->descriptors == 0) { | |
1798 | /* sg1entry not yet used */ | |
1799 | frag = &skb_shinfo(skb)->frags[0]; | |
1800 | ||
1801 | /* copy sg1entry data */ | |
1802 | sg1entry->l_key = lkey; | |
1803 | sg1entry->len = frag->size; | |
44a5b3d5 | 1804 | sg1entry->vaddr = |
618c4a0a | 1805 | ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1806 | swqe->descriptors++; |
1807 | sg1entry_contains_frag_data = 1; | |
1808 | } | |
1809 | ||
1810 | for (i = sg1entry_contains_frag_data; i < nfrags; i++) { | |
1811 | ||
1812 | frag = &skb_shinfo(skb)->frags[i]; | |
1813 | sgentry = &sg_list[i - sg1entry_contains_frag_data]; | |
1814 | ||
1815 | sgentry->l_key = lkey; | |
1816 | sgentry->len = frag->size; | |
618c4a0a | 1817 | sgentry->vaddr = ehea_map_vaddr(skb_frag_address(frag)); |
7a291083 JBT |
1818 | swqe->descriptors++; |
1819 | } | |
1820 | } | |
1821 | } | |
1822 | ||
1823 | static int ehea_broadcast_reg_helper(struct ehea_port *port, u32 hcallid) | |
1824 | { | |
1825 | int ret = 0; | |
1826 | u64 hret; | |
1827 | u8 reg_type; | |
1828 | ||
1829 | /* De/Register untagged packets */ | |
1830 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_UNTAGGED; | |
1831 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1832 | port->logical_port_id, | |
1833 | reg_type, port->mac_addr, 0, hcallid); | |
1834 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1835 | pr_err("%sregistering bc address failed (tagged)\n", |
1836 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1837 | ret = -EIO; |
1838 | goto out_herr; | |
1839 | } | |
1840 | ||
1841 | /* De/Register VLAN packets */ | |
1842 | reg_type = EHEA_BCMC_BROADCAST | EHEA_BCMC_VLANID_ALL; | |
1843 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1844 | port->logical_port_id, | |
1845 | reg_type, port->mac_addr, 0, hcallid); | |
1846 | if (hret != H_SUCCESS) { | |
8c4877a4 JP |
1847 | pr_err("%sregistering bc address failed (vlan)\n", |
1848 | hcallid == H_REG_BCMC ? "" : "de"); | |
7a291083 JBT |
1849 | ret = -EIO; |
1850 | } | |
1851 | out_herr: | |
1852 | return ret; | |
1853 | } | |
1854 | ||
1855 | static int ehea_set_mac_addr(struct net_device *dev, void *sa) | |
1856 | { | |
1857 | struct ehea_port *port = netdev_priv(dev); | |
1858 | struct sockaddr *mac_addr = sa; | |
1859 | struct hcp_ehea_port_cb0 *cb0; | |
1860 | int ret; | |
1861 | u64 hret; | |
1862 | ||
1863 | if (!is_valid_ether_addr(mac_addr->sa_data)) { | |
1864 | ret = -EADDRNOTAVAIL; | |
1865 | goto out; | |
1866 | } | |
1867 | ||
3faf2693 | 1868 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 1869 | if (!cb0) { |
8c4877a4 | 1870 | pr_err("no mem for cb0\n"); |
7a291083 JBT |
1871 | ret = -ENOMEM; |
1872 | goto out; | |
1873 | } | |
1874 | ||
1875 | memcpy(&(cb0->port_mac_addr), &(mac_addr->sa_data[0]), ETH_ALEN); | |
1876 | ||
1877 | cb0->port_mac_addr = cb0->port_mac_addr >> 16; | |
1878 | ||
1879 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1880 | port->logical_port_id, H_PORT_CB0, | |
1881 | EHEA_BMASK_SET(H_PORT_CB0_MAC, 1), cb0); | |
1882 | if (hret != H_SUCCESS) { | |
1883 | ret = -EIO; | |
1884 | goto out_free; | |
1885 | } | |
1886 | ||
1887 | memcpy(dev->dev_addr, mac_addr->sa_data, dev->addr_len); | |
1888 | ||
1889 | /* Deregister old MAC in pHYP */ | |
00aaea2f JBT |
1890 | if (port->state == EHEA_PORT_UP) { |
1891 | ret = ehea_broadcast_reg_helper(port, H_DEREG_BCMC); | |
1892 | if (ret) | |
1893 | goto out_upregs; | |
1894 | } | |
7a291083 JBT |
1895 | |
1896 | port->mac_addr = cb0->port_mac_addr << 16; | |
1897 | ||
1898 | /* Register new MAC in pHYP */ | |
00aaea2f JBT |
1899 | if (port->state == EHEA_PORT_UP) { |
1900 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); | |
1901 | if (ret) | |
1902 | goto out_upregs; | |
1903 | } | |
7a291083 JBT |
1904 | |
1905 | ret = 0; | |
21eee2dd TK |
1906 | |
1907 | out_upregs: | |
1908 | ehea_update_bcmc_registrations(); | |
7a291083 | 1909 | out_free: |
3faf2693 | 1910 | free_page((unsigned long)cb0); |
7a291083 JBT |
1911 | out: |
1912 | return ret; | |
1913 | } | |
1914 | ||
1915 | static void ehea_promiscuous_error(u64 hret, int enable) | |
1916 | { | |
7674a588 | 1917 | if (hret == H_AUTHORITY) |
8c4877a4 JP |
1918 | pr_info("Hypervisor denied %sabling promiscuous mode\n", |
1919 | enable == 1 ? "en" : "dis"); | |
7674a588 | 1920 | else |
8c4877a4 JP |
1921 | pr_err("failed %sabling promiscuous mode\n", |
1922 | enable == 1 ? "en" : "dis"); | |
7a291083 JBT |
1923 | } |
1924 | ||
1925 | static void ehea_promiscuous(struct net_device *dev, int enable) | |
1926 | { | |
1927 | struct ehea_port *port = netdev_priv(dev); | |
1928 | struct hcp_ehea_port_cb7 *cb7; | |
1929 | u64 hret; | |
1930 | ||
aa3bc6c6 | 1931 | if (enable == port->promisc) |
7a291083 JBT |
1932 | return; |
1933 | ||
3faf2693 | 1934 | cb7 = (void *)get_zeroed_page(GFP_ATOMIC); |
7a291083 | 1935 | if (!cb7) { |
8c4877a4 | 1936 | pr_err("no mem for cb7\n"); |
7a291083 JBT |
1937 | goto out; |
1938 | } | |
1939 | ||
1940 | /* Modify Pxs_DUCQPN in CB7 */ | |
1941 | cb7->def_uc_qpn = enable == 1 ? port->port_res[0].qp->fw_handle : 0; | |
1942 | ||
1943 | hret = ehea_h_modify_ehea_port(port->adapter->handle, | |
1944 | port->logical_port_id, | |
1945 | H_PORT_CB7, H_PORT_CB7_DUCQPN, cb7); | |
1946 | if (hret) { | |
1947 | ehea_promiscuous_error(hret, enable); | |
1948 | goto out; | |
1949 | } | |
1950 | ||
1951 | port->promisc = enable; | |
1952 | out: | |
3faf2693 | 1953 | free_page((unsigned long)cb7); |
7a291083 JBT |
1954 | } |
1955 | ||
1956 | static u64 ehea_multicast_reg_helper(struct ehea_port *port, u64 mc_mac_addr, | |
1957 | u32 hcallid) | |
1958 | { | |
1959 | u64 hret; | |
1960 | u8 reg_type; | |
1961 | ||
1962 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1963 | | EHEA_BCMC_UNTAGGED; | |
1964 | ||
1965 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1966 | port->logical_port_id, | |
1967 | reg_type, mc_mac_addr, 0, hcallid); | |
1968 | if (hret) | |
1969 | goto out; | |
1970 | ||
1971 | reg_type = EHEA_BCMC_SCOPE_ALL | EHEA_BCMC_MULTICAST | |
1972 | | EHEA_BCMC_VLANID_ALL; | |
1973 | ||
1974 | hret = ehea_h_reg_dereg_bcmc(port->adapter->handle, | |
1975 | port->logical_port_id, | |
1976 | reg_type, mc_mac_addr, 0, hcallid); | |
1977 | out: | |
1978 | return hret; | |
1979 | } | |
1980 | ||
1981 | static int ehea_drop_multicast_list(struct net_device *dev) | |
1982 | { | |
1983 | struct ehea_port *port = netdev_priv(dev); | |
1984 | struct ehea_mc_list *mc_entry = port->mc_list; | |
1985 | struct list_head *pos; | |
1986 | struct list_head *temp; | |
1987 | int ret = 0; | |
1988 | u64 hret; | |
1989 | ||
1990 | list_for_each_safe(pos, temp, &(port->mc_list->list)) { | |
1991 | mc_entry = list_entry(pos, struct ehea_mc_list, list); | |
1992 | ||
1993 | hret = ehea_multicast_reg_helper(port, mc_entry->macaddr, | |
1994 | H_DEREG_BCMC); | |
1995 | if (hret) { | |
8c4877a4 | 1996 | pr_err("failed deregistering mcast MAC\n"); |
7a291083 JBT |
1997 | ret = -EIO; |
1998 | } | |
1999 | ||
2000 | list_del(pos); | |
2001 | kfree(mc_entry); | |
2002 | } | |
2003 | return ret; | |
2004 | } | |
2005 | ||
2006 | static void ehea_allmulti(struct net_device *dev, int enable) | |
2007 | { | |
2008 | struct ehea_port *port = netdev_priv(dev); | |
2009 | u64 hret; | |
2010 | ||
2011 | if (!port->allmulti) { | |
2012 | if (enable) { | |
2013 | /* Enable ALLMULTI */ | |
2014 | ehea_drop_multicast_list(dev); | |
2015 | hret = ehea_multicast_reg_helper(port, 0, H_REG_BCMC); | |
2016 | if (!hret) | |
2017 | port->allmulti = 1; | |
2018 | else | |
8c4877a4 JP |
2019 | netdev_err(dev, |
2020 | "failed enabling IFF_ALLMULTI\n"); | |
7a291083 JBT |
2021 | } |
2022 | } else | |
2023 | if (!enable) { | |
2024 | /* Disable ALLMULTI */ | |
2025 | hret = ehea_multicast_reg_helper(port, 0, H_DEREG_BCMC); | |
2026 | if (!hret) | |
2027 | port->allmulti = 0; | |
2028 | else | |
8c4877a4 JP |
2029 | netdev_err(dev, |
2030 | "failed disabling IFF_ALLMULTI\n"); | |
7a291083 JBT |
2031 | } |
2032 | } | |
2033 | ||
508d2b5d | 2034 | static void ehea_add_multicast_entry(struct ehea_port *port, u8 *mc_mac_addr) |
7a291083 JBT |
2035 | { |
2036 | struct ehea_mc_list *ehea_mcl_entry; | |
2037 | u64 hret; | |
2038 | ||
1e1675cc | 2039 | ehea_mcl_entry = kzalloc(sizeof(*ehea_mcl_entry), GFP_ATOMIC); |
7a291083 | 2040 | if (!ehea_mcl_entry) { |
8c4877a4 | 2041 | pr_err("no mem for mcl_entry\n"); |
7a291083 JBT |
2042 | return; |
2043 | } | |
2044 | ||
2045 | INIT_LIST_HEAD(&ehea_mcl_entry->list); | |
2046 | ||
2047 | memcpy(&ehea_mcl_entry->macaddr, mc_mac_addr, ETH_ALEN); | |
2048 | ||
2049 | hret = ehea_multicast_reg_helper(port, ehea_mcl_entry->macaddr, | |
2050 | H_REG_BCMC); | |
2051 | if (!hret) | |
2052 | list_add(&ehea_mcl_entry->list, &port->mc_list->list); | |
2053 | else { | |
8c4877a4 | 2054 | pr_err("failed registering mcast MAC\n"); |
7a291083 JBT |
2055 | kfree(ehea_mcl_entry); |
2056 | } | |
2057 | } | |
2058 | ||
2059 | static void ehea_set_multicast_list(struct net_device *dev) | |
2060 | { | |
2061 | struct ehea_port *port = netdev_priv(dev); | |
22bedad3 | 2062 | struct netdev_hw_addr *ha; |
48e2f183 | 2063 | int ret; |
7a291083 | 2064 | |
a4910b74 | 2065 | if (port->promisc) { |
7a291083 JBT |
2066 | ehea_promiscuous(dev, 1); |
2067 | return; | |
2068 | } | |
2069 | ehea_promiscuous(dev, 0); | |
2070 | ||
2071 | if (dev->flags & IFF_ALLMULTI) { | |
2072 | ehea_allmulti(dev, 1); | |
21eee2dd | 2073 | goto out; |
7a291083 JBT |
2074 | } |
2075 | ehea_allmulti(dev, 0); | |
2076 | ||
4cd24eaf | 2077 | if (!netdev_mc_empty(dev)) { |
7a291083 JBT |
2078 | ret = ehea_drop_multicast_list(dev); |
2079 | if (ret) { | |
2080 | /* Dropping the current multicast list failed. | |
2081 | * Enabling ALL_MULTI is the best we can do. | |
2082 | */ | |
2083 | ehea_allmulti(dev, 1); | |
2084 | } | |
2085 | ||
4cd24eaf | 2086 | if (netdev_mc_count(dev) > port->adapter->max_mc_mac) { |
8c4877a4 JP |
2087 | pr_info("Mcast registration limit reached (0x%llx). Use ALLMULTI!\n", |
2088 | port->adapter->max_mc_mac); | |
7a291083 JBT |
2089 | goto out; |
2090 | } | |
2091 | ||
22bedad3 JP |
2092 | netdev_for_each_mc_addr(ha, dev) |
2093 | ehea_add_multicast_entry(port, ha->addr); | |
508d2b5d | 2094 | |
7a291083 JBT |
2095 | } |
2096 | out: | |
21eee2dd | 2097 | ehea_update_bcmc_registrations(); |
7a291083 JBT |
2098 | } |
2099 | ||
2100 | static int ehea_change_mtu(struct net_device *dev, int new_mtu) | |
2101 | { | |
2102 | if ((new_mtu < 68) || (new_mtu > EHEA_MAX_PACKET_SIZE)) | |
2103 | return -EINVAL; | |
2104 | dev->mtu = new_mtu; | |
2105 | return 0; | |
2106 | } | |
2107 | ||
2108 | static void ehea_xmit2(struct sk_buff *skb, struct net_device *dev, | |
2109 | struct ehea_swqe *swqe, u32 lkey) | |
2110 | { | |
2111 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 2112 | const struct iphdr *iph = ip_hdr(skb); |
d1d25aab | 2113 | |
7a291083 JBT |
2114 | /* IPv4 */ |
2115 | swqe->tx_control |= EHEA_SWQE_CRC | |
2116 | | EHEA_SWQE_IP_CHECKSUM | |
2117 | | EHEA_SWQE_TCP_CHECKSUM | |
2118 | | EHEA_SWQE_IMM_DATA_PRESENT | |
2119 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2120 | ||
2121 | write_ip_start_end(swqe, skb); | |
2122 | ||
eddc9ec5 | 2123 | if (iph->protocol == IPPROTO_UDP) { |
8e95a202 JP |
2124 | if ((iph->frag_off & IP_MF) || |
2125 | (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
2126 | /* IP fragment, so don't change cs */ |
2127 | swqe->tx_control &= ~EHEA_SWQE_TCP_CHECKSUM; | |
2128 | else | |
2129 | write_udp_offset_end(swqe, skb); | |
eddc9ec5 | 2130 | } else if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
2131 | write_tcp_offset_end(swqe, skb); |
2132 | } | |
2133 | ||
2134 | /* icmp (big data) and ip segmentation packets (all other ip | |
2135 | packets) do not require any special handling */ | |
2136 | ||
2137 | } else { | |
2138 | /* Other Ethernet Protocol */ | |
2139 | swqe->tx_control |= EHEA_SWQE_CRC | |
2140 | | EHEA_SWQE_IMM_DATA_PRESENT | |
2141 | | EHEA_SWQE_DESCRIPTORS_PRESENT; | |
2142 | } | |
2143 | ||
2144 | write_swqe2_data(skb, dev, swqe, lkey); | |
2145 | } | |
2146 | ||
2147 | static void ehea_xmit3(struct sk_buff *skb, struct net_device *dev, | |
2148 | struct ehea_swqe *swqe) | |
2149 | { | |
2150 | int nfrags = skb_shinfo(skb)->nr_frags; | |
2151 | u8 *imm_data = &swqe->u.immdata_nodesc.immediate_data[0]; | |
2152 | skb_frag_t *frag; | |
2153 | int i; | |
2154 | ||
2155 | if (skb->protocol == htons(ETH_P_IP)) { | |
eddc9ec5 | 2156 | const struct iphdr *iph = ip_hdr(skb); |
d1d25aab | 2157 | |
7a291083 JBT |
2158 | /* IPv4 */ |
2159 | write_ip_start_end(swqe, skb); | |
2160 | ||
eddc9ec5 | 2161 | if (iph->protocol == IPPROTO_TCP) { |
7a291083 JBT |
2162 | swqe->tx_control |= EHEA_SWQE_CRC |
2163 | | EHEA_SWQE_IP_CHECKSUM | |
2164 | | EHEA_SWQE_TCP_CHECKSUM | |
2165 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2166 | ||
2167 | write_tcp_offset_end(swqe, skb); | |
2168 | ||
eddc9ec5 | 2169 | } else if (iph->protocol == IPPROTO_UDP) { |
8e95a202 JP |
2170 | if ((iph->frag_off & IP_MF) || |
2171 | (iph->frag_off & IP_OFFSET)) | |
7a291083 JBT |
2172 | /* IP fragment, so don't change cs */ |
2173 | swqe->tx_control |= EHEA_SWQE_CRC | |
2174 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2175 | else { | |
2176 | swqe->tx_control |= EHEA_SWQE_CRC | |
2177 | | EHEA_SWQE_IP_CHECKSUM | |
2178 | | EHEA_SWQE_TCP_CHECKSUM | |
2179 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2180 | ||
2181 | write_udp_offset_end(swqe, skb); | |
2182 | } | |
2183 | } else { | |
2184 | /* icmp (big data) and | |
2185 | ip segmentation packets (all other ip packets) */ | |
2186 | swqe->tx_control |= EHEA_SWQE_CRC | |
2187 | | EHEA_SWQE_IP_CHECKSUM | |
2188 | | EHEA_SWQE_IMM_DATA_PRESENT; | |
2189 | } | |
2190 | } else { | |
2191 | /* Other Ethernet Protocol */ | |
2192 | swqe->tx_control |= EHEA_SWQE_CRC | EHEA_SWQE_IMM_DATA_PRESENT; | |
2193 | } | |
2194 | /* copy (immediate) data */ | |
2195 | if (nfrags == 0) { | |
2196 | /* data is in a single piece */ | |
d626f62b | 2197 | skb_copy_from_linear_data(skb, imm_data, skb->len); |
7a291083 JBT |
2198 | } else { |
2199 | /* first copy data from the skb->data buffer ... */ | |
d626f62b | 2200 | skb_copy_from_linear_data(skb, imm_data, |
e743d313 ED |
2201 | skb_headlen(skb)); |
2202 | imm_data += skb_headlen(skb); | |
7a291083 JBT |
2203 | |
2204 | /* ... then copy data from the fragments */ | |
2205 | for (i = 0; i < nfrags; i++) { | |
2206 | frag = &skb_shinfo(skb)->frags[i]; | |
618c4a0a | 2207 | memcpy(imm_data, skb_frag_address(frag), frag->size); |
7a291083 JBT |
2208 | imm_data += frag->size; |
2209 | } | |
2210 | } | |
2211 | swqe->immediate_data_length = skb->len; | |
2212 | dev_kfree_skb(skb); | |
2213 | } | |
2214 | ||
2215 | static int ehea_start_xmit(struct sk_buff *skb, struct net_device *dev) | |
2216 | { | |
2217 | struct ehea_port *port = netdev_priv(dev); | |
2218 | struct ehea_swqe *swqe; | |
7a291083 JBT |
2219 | u32 lkey; |
2220 | int swqe_index; | |
18604c54 | 2221 | struct ehea_port_res *pr; |
b9564468 | 2222 | struct netdev_queue *txq; |
18604c54 | 2223 | |
b9564468 AB |
2224 | pr = &port->port_res[skb_get_queue_mapping(skb)]; |
2225 | txq = netdev_get_tx_queue(dev, skb_get_queue_mapping(skb)); | |
18604c54 | 2226 | |
7a291083 JBT |
2227 | swqe = ehea_get_swqe(pr->qp, &swqe_index); |
2228 | memset(swqe, 0, SWQE_HEADER_SIZE); | |
2229 | atomic_dec(&pr->swqe_avail); | |
2230 | ||
e5ccd961 ED |
2231 | if (vlan_tx_tag_present(skb)) { |
2232 | swqe->tx_control |= EHEA_SWQE_VLAN_INSERT; | |
2233 | swqe->vlan_tag = vlan_tx_tag_get(skb); | |
2234 | } | |
2235 | ||
ce45b873 BL |
2236 | pr->tx_packets++; |
2237 | pr->tx_bytes += skb->len; | |
2238 | ||
7a291083 JBT |
2239 | if (skb->len <= SWQE3_MAX_IMM) { |
2240 | u32 sig_iv = port->sig_comp_iv; | |
2241 | u32 swqe_num = pr->swqe_id_counter; | |
2242 | ehea_xmit3(skb, dev, swqe); | |
2243 | swqe->wr_id = EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE3_TYPE) | |
2244 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, swqe_num); | |
2245 | if (pr->swqe_ll_count >= (sig_iv - 1)) { | |
2246 | swqe->wr_id |= EHEA_BMASK_SET(EHEA_WR_ID_REFILL, | |
2247 | sig_iv); | |
2248 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; | |
2249 | pr->swqe_ll_count = 0; | |
2250 | } else | |
2251 | pr->swqe_ll_count += 1; | |
2252 | } else { | |
2253 | swqe->wr_id = | |
2254 | EHEA_BMASK_SET(EHEA_WR_ID_TYPE, EHEA_SWQE2_TYPE) | |
2255 | | EHEA_BMASK_SET(EHEA_WR_ID_COUNT, pr->swqe_id_counter) | |
acbddb59 | 2256 | | EHEA_BMASK_SET(EHEA_WR_ID_REFILL, 1) |
7a291083 JBT |
2257 | | EHEA_BMASK_SET(EHEA_WR_ID_INDEX, pr->sq_skba.index); |
2258 | pr->sq_skba.arr[pr->sq_skba.index] = skb; | |
2259 | ||
2260 | pr->sq_skba.index++; | |
2261 | pr->sq_skba.index &= (pr->sq_skba.len - 1); | |
2262 | ||
2263 | lkey = pr->send_mr.lkey; | |
2264 | ehea_xmit2(skb, dev, swqe, lkey); | |
acbddb59 | 2265 | swqe->tx_control |= EHEA_SWQE_SIGNALLED_COMPLETION; |
7a291083 JBT |
2266 | } |
2267 | pr->swqe_id_counter += 1; | |
2268 | ||
8c4877a4 JP |
2269 | netif_info(port, tx_queued, dev, |
2270 | "post swqe on QP %d\n", pr->qp->init_attr.qp_nr); | |
2271 | if (netif_msg_tx_queued(port)) | |
bff0a55f | 2272 | ehea_dump(swqe, 512, "swqe"); |
7a291083 | 2273 | |
2c69448b | 2274 | if (unlikely(test_bit(__EHEA_STOP_XFER, &ehea_driver_flags))) { |
b9564468 | 2275 | netif_tx_stop_queue(txq); |
2c69448b JBT |
2276 | swqe->tx_control |= EHEA_SWQE_PURGE; |
2277 | } | |
44c82152 | 2278 | |
7a291083 | 2279 | ehea_post_swqe(pr->qp, swqe); |
7a291083 JBT |
2280 | |
2281 | if (unlikely(atomic_read(&pr->swqe_avail) <= 1)) { | |
b9564468 AB |
2282 | pr->p_stats.queue_stopped++; |
2283 | netif_tx_stop_queue(txq); | |
7a291083 | 2284 | } |
2c69448b | 2285 | |
7a291083 JBT |
2286 | return NETDEV_TX_OK; |
2287 | } | |
2288 | ||
7a291083 JBT |
2289 | static void ehea_vlan_rx_add_vid(struct net_device *dev, unsigned short vid) |
2290 | { | |
2291 | struct ehea_port *port = netdev_priv(dev); | |
2292 | struct ehea_adapter *adapter = port->adapter; | |
2293 | struct hcp_ehea_port_cb1 *cb1; | |
2294 | int index; | |
2295 | u64 hret; | |
2296 | ||
3faf2693 | 2297 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2298 | if (!cb1) { |
8c4877a4 | 2299 | pr_err("no mem for cb1\n"); |
7a291083 JBT |
2300 | goto out; |
2301 | } | |
2302 | ||
2303 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2304 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2305 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2306 | pr_err("query_ehea_port failed\n"); |
7a291083 JBT |
2307 | goto out; |
2308 | } | |
2309 | ||
2310 | index = (vid / 64); | |
dec590c1 | 2311 | cb1->vlan_filter[index] |= ((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2312 | |
2313 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2314 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2315 | if (hret != H_SUCCESS) | |
8c4877a4 | 2316 | pr_err("modify_ehea_port failed\n"); |
7a291083 | 2317 | out: |
3faf2693 | 2318 | free_page((unsigned long)cb1); |
7a291083 JBT |
2319 | return; |
2320 | } | |
2321 | ||
2322 | static void ehea_vlan_rx_kill_vid(struct net_device *dev, unsigned short vid) | |
2323 | { | |
2324 | struct ehea_port *port = netdev_priv(dev); | |
2325 | struct ehea_adapter *adapter = port->adapter; | |
2326 | struct hcp_ehea_port_cb1 *cb1; | |
2327 | int index; | |
2328 | u64 hret; | |
2329 | ||
3faf2693 | 2330 | cb1 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 2331 | if (!cb1) { |
8c4877a4 | 2332 | pr_err("no mem for cb1\n"); |
7a291083 JBT |
2333 | goto out; |
2334 | } | |
2335 | ||
2336 | hret = ehea_h_query_ehea_port(adapter->handle, port->logical_port_id, | |
2337 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2338 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2339 | pr_err("query_ehea_port failed\n"); |
7a291083 JBT |
2340 | goto out; |
2341 | } | |
2342 | ||
2343 | index = (vid / 64); | |
dec590c1 | 2344 | cb1->vlan_filter[index] &= ~((u64)(0x8000000000000000 >> (vid & 0x3F))); |
7a291083 JBT |
2345 | |
2346 | hret = ehea_h_modify_ehea_port(adapter->handle, port->logical_port_id, | |
2347 | H_PORT_CB1, H_PORT_CB1_ALL, cb1); | |
2348 | if (hret != H_SUCCESS) | |
8c4877a4 | 2349 | pr_err("modify_ehea_port failed\n"); |
7a291083 | 2350 | out: |
3faf2693 | 2351 | free_page((unsigned long)cb1); |
7a291083 JBT |
2352 | } |
2353 | ||
2354 | int ehea_activate_qp(struct ehea_adapter *adapter, struct ehea_qp *qp) | |
2355 | { | |
2356 | int ret = -EIO; | |
2357 | u64 hret; | |
2358 | u16 dummy16 = 0; | |
2359 | u64 dummy64 = 0; | |
508d2b5d | 2360 | struct hcp_modify_qp_cb0 *cb0; |
7a291083 | 2361 | |
3faf2693 | 2362 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2363 | if (!cb0) { |
2364 | ret = -ENOMEM; | |
2365 | goto out; | |
2366 | } | |
2367 | ||
2368 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2369 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2370 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2371 | pr_err("query_ehea_qp failed (1)\n"); |
7a291083 JBT |
2372 | goto out; |
2373 | } | |
2374 | ||
2375 | cb0->qp_ctl_reg = H_QP_CR_STATE_INITIALIZED; | |
2376 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2377 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2378 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2379 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2380 | pr_err("modify_ehea_qp failed (1)\n"); |
7a291083 JBT |
2381 | goto out; |
2382 | } | |
2383 | ||
2384 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2385 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2386 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2387 | pr_err("query_ehea_qp failed (2)\n"); |
7a291083 JBT |
2388 | goto out; |
2389 | } | |
2390 | ||
2391 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_INITIALIZED; | |
2392 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2393 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2394 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2395 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2396 | pr_err("modify_ehea_qp failed (2)\n"); |
7a291083 JBT |
2397 | goto out; |
2398 | } | |
2399 | ||
2400 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2401 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2402 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2403 | pr_err("query_ehea_qp failed (3)\n"); |
7a291083 JBT |
2404 | goto out; |
2405 | } | |
2406 | ||
2407 | cb0->qp_ctl_reg = H_QP_CR_ENABLED | H_QP_CR_STATE_RDY2SND; | |
2408 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2409 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, 1), cb0, | |
2410 | &dummy64, &dummy64, &dummy16, &dummy16); | |
2411 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2412 | pr_err("modify_ehea_qp failed (3)\n"); |
7a291083 JBT |
2413 | goto out; |
2414 | } | |
2415 | ||
2416 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2417 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), cb0); | |
2418 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2419 | pr_err("query_ehea_qp failed (4)\n"); |
7a291083 JBT |
2420 | goto out; |
2421 | } | |
2422 | ||
2423 | ret = 0; | |
2424 | out: | |
3faf2693 | 2425 | free_page((unsigned long)cb0); |
7a291083 JBT |
2426 | return ret; |
2427 | } | |
2428 | ||
723f28e4 | 2429 | static int ehea_port_res_setup(struct ehea_port *port, int def_qps) |
7a291083 JBT |
2430 | { |
2431 | int ret, i; | |
2432 | struct port_res_cfg pr_cfg, pr_cfg_small_rx; | |
2433 | enum ehea_eq_type eq_type = EHEA_EQ; | |
2434 | ||
2435 | port->qp_eq = ehea_create_eq(port->adapter, eq_type, | |
2436 | EHEA_MAX_ENTRIES_EQ, 1); | |
2437 | if (!port->qp_eq) { | |
2438 | ret = -EINVAL; | |
8c4877a4 | 2439 | pr_err("ehea_create_eq failed (qp_eq)\n"); |
7a291083 JBT |
2440 | goto out_kill_eq; |
2441 | } | |
2442 | ||
2443 | pr_cfg.max_entries_rcq = rq1_entries + rq2_entries + rq3_entries; | |
18604c54 | 2444 | pr_cfg.max_entries_scq = sq_entries * 2; |
7a291083 JBT |
2445 | pr_cfg.max_entries_sq = sq_entries; |
2446 | pr_cfg.max_entries_rq1 = rq1_entries; | |
2447 | pr_cfg.max_entries_rq2 = rq2_entries; | |
2448 | pr_cfg.max_entries_rq3 = rq3_entries; | |
2449 | ||
2450 | pr_cfg_small_rx.max_entries_rcq = 1; | |
2451 | pr_cfg_small_rx.max_entries_scq = sq_entries; | |
2452 | pr_cfg_small_rx.max_entries_sq = sq_entries; | |
2453 | pr_cfg_small_rx.max_entries_rq1 = 1; | |
2454 | pr_cfg_small_rx.max_entries_rq2 = 1; | |
2455 | pr_cfg_small_rx.max_entries_rq3 = 1; | |
2456 | ||
2457 | for (i = 0; i < def_qps; i++) { | |
2458 | ret = ehea_init_port_res(port, &port->port_res[i], &pr_cfg, i); | |
2459 | if (ret) | |
2460 | goto out_clean_pr; | |
2461 | } | |
723f28e4 | 2462 | for (i = def_qps; i < def_qps; i++) { |
7a291083 JBT |
2463 | ret = ehea_init_port_res(port, &port->port_res[i], |
2464 | &pr_cfg_small_rx, i); | |
2465 | if (ret) | |
2466 | goto out_clean_pr; | |
2467 | } | |
2468 | ||
2469 | return 0; | |
2470 | ||
2471 | out_clean_pr: | |
2472 | while (--i >= 0) | |
2473 | ehea_clean_portres(port, &port->port_res[i]); | |
2474 | ||
2475 | out_kill_eq: | |
2476 | ehea_destroy_eq(port->qp_eq); | |
2477 | return ret; | |
2478 | } | |
2479 | ||
2480 | static int ehea_clean_all_portres(struct ehea_port *port) | |
2481 | { | |
2482 | int ret = 0; | |
2483 | int i; | |
2484 | ||
723f28e4 | 2485 | for (i = 0; i < port->num_def_qps; i++) |
7a291083 JBT |
2486 | ret |= ehea_clean_portres(port, &port->port_res[i]); |
2487 | ||
2488 | ret |= ehea_destroy_eq(port->qp_eq); | |
2489 | ||
2490 | return ret; | |
2491 | } | |
2492 | ||
35cf2e2e | 2493 | static void ehea_remove_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2494 | { |
35cf2e2e TK |
2495 | if (adapter->active_ports) |
2496 | return; | |
1211bb6d TK |
2497 | |
2498 | ehea_rem_mr(&adapter->mr); | |
2499 | } | |
2500 | ||
35cf2e2e | 2501 | static int ehea_add_adapter_mr(struct ehea_adapter *adapter) |
1211bb6d | 2502 | { |
35cf2e2e TK |
2503 | if (adapter->active_ports) |
2504 | return 0; | |
1211bb6d TK |
2505 | |
2506 | return ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2507 | } | |
2508 | ||
7a291083 JBT |
2509 | static int ehea_up(struct net_device *dev) |
2510 | { | |
2511 | int ret, i; | |
2512 | struct ehea_port *port = netdev_priv(dev); | |
7a291083 JBT |
2513 | |
2514 | if (port->state == EHEA_PORT_UP) | |
2515 | return 0; | |
2516 | ||
723f28e4 | 2517 | ret = ehea_port_res_setup(port, port->num_def_qps); |
7a291083 | 2518 | if (ret) { |
8c4877a4 | 2519 | netdev_err(dev, "port_res_failed\n"); |
7a291083 JBT |
2520 | goto out; |
2521 | } | |
2522 | ||
2523 | /* Set default QP for this port */ | |
2524 | ret = ehea_configure_port(port); | |
2525 | if (ret) { | |
8c4877a4 | 2526 | netdev_err(dev, "ehea_configure_port failed. ret:%d\n", ret); |
7a291083 JBT |
2527 | goto out_clean_pr; |
2528 | } | |
2529 | ||
7a291083 JBT |
2530 | ret = ehea_reg_interrupts(dev); |
2531 | if (ret) { | |
8c4877a4 | 2532 | netdev_err(dev, "reg_interrupts failed. ret:%d\n", ret); |
f9e29228 | 2533 | goto out_clean_pr; |
7a291083 JBT |
2534 | } |
2535 | ||
723f28e4 | 2536 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2537 | ret = ehea_activate_qp(port->adapter, port->port_res[i].qp); |
2538 | if (ret) { | |
8c4877a4 | 2539 | netdev_err(dev, "activate_qp failed\n"); |
7a291083 JBT |
2540 | goto out_free_irqs; |
2541 | } | |
2542 | } | |
2543 | ||
508d2b5d | 2544 | for (i = 0; i < port->num_def_qps; i++) { |
7a291083 JBT |
2545 | ret = ehea_fill_port_res(&port->port_res[i]); |
2546 | if (ret) { | |
8c4877a4 | 2547 | netdev_err(dev, "out_free_irqs\n"); |
7a291083 JBT |
2548 | goto out_free_irqs; |
2549 | } | |
2550 | } | |
2551 | ||
21eee2dd TK |
2552 | ret = ehea_broadcast_reg_helper(port, H_REG_BCMC); |
2553 | if (ret) { | |
2554 | ret = -EIO; | |
2555 | goto out_free_irqs; | |
2556 | } | |
2557 | ||
7a291083 | 2558 | port->state = EHEA_PORT_UP; |
21eee2dd TK |
2559 | |
2560 | ret = 0; | |
7a291083 JBT |
2561 | goto out; |
2562 | ||
2563 | out_free_irqs: | |
2564 | ehea_free_interrupts(dev); | |
2565 | ||
7a291083 JBT |
2566 | out_clean_pr: |
2567 | ehea_clean_all_portres(port); | |
2568 | out: | |
44c82152 | 2569 | if (ret) |
8c4877a4 | 2570 | netdev_info(dev, "Failed starting. ret=%i\n", ret); |
44c82152 | 2571 | |
21eee2dd | 2572 | ehea_update_bcmc_registrations(); |
21eee2dd | 2573 | ehea_update_firmware_handles(); |
21eee2dd | 2574 | |
7a291083 JBT |
2575 | return ret; |
2576 | } | |
2577 | ||
bea3348e SH |
2578 | static void port_napi_disable(struct ehea_port *port) |
2579 | { | |
2580 | int i; | |
2581 | ||
723f28e4 | 2582 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2583 | napi_disable(&port->port_res[i].napi); |
2584 | } | |
2585 | ||
2586 | static void port_napi_enable(struct ehea_port *port) | |
2587 | { | |
2588 | int i; | |
2589 | ||
723f28e4 | 2590 | for (i = 0; i < port->num_def_qps; i++) |
bea3348e SH |
2591 | napi_enable(&port->port_res[i].napi); |
2592 | } | |
2593 | ||
7a291083 JBT |
2594 | static int ehea_open(struct net_device *dev) |
2595 | { | |
2596 | int ret; | |
2597 | struct ehea_port *port = netdev_priv(dev); | |
2598 | ||
a5af6ad3 | 2599 | mutex_lock(&port->port_lock); |
7a291083 | 2600 | |
8c4877a4 | 2601 | netif_info(port, ifup, dev, "enabling port\n"); |
7a291083 JBT |
2602 | |
2603 | ret = ehea_up(dev); | |
bea3348e SH |
2604 | if (!ret) { |
2605 | port_napi_enable(port); | |
b9564468 | 2606 | netif_tx_start_all_queues(dev); |
bea3348e | 2607 | } |
7a291083 | 2608 | |
a5af6ad3 | 2609 | mutex_unlock(&port->port_lock); |
2aefcad8 | 2610 | schedule_delayed_work(&port->stats_work, msecs_to_jiffies(1000)); |
7a291083 JBT |
2611 | |
2612 | return ret; | |
2613 | } | |
2614 | ||
2615 | static int ehea_down(struct net_device *dev) | |
2616 | { | |
bea3348e | 2617 | int ret; |
7a291083 JBT |
2618 | struct ehea_port *port = netdev_priv(dev); |
2619 | ||
2620 | if (port->state == EHEA_PORT_DOWN) | |
2621 | return 0; | |
2622 | ||
2623 | ehea_drop_multicast_list(dev); | |
21eee2dd TK |
2624 | ehea_broadcast_reg_helper(port, H_DEREG_BCMC); |
2625 | ||
7a291083 JBT |
2626 | ehea_free_interrupts(dev); |
2627 | ||
7a291083 | 2628 | port->state = EHEA_PORT_DOWN; |
44c82152 | 2629 | |
21eee2dd | 2630 | ehea_update_bcmc_registrations(); |
21eee2dd | 2631 | |
44c82152 TK |
2632 | ret = ehea_clean_all_portres(port); |
2633 | if (ret) | |
8c4877a4 | 2634 | netdev_info(dev, "Failed freeing resources. ret=%i\n", ret); |
44c82152 | 2635 | |
21eee2dd | 2636 | ehea_update_firmware_handles(); |
21eee2dd | 2637 | |
7a291083 JBT |
2638 | return ret; |
2639 | } | |
2640 | ||
2641 | static int ehea_stop(struct net_device *dev) | |
2642 | { | |
2643 | int ret; | |
2644 | struct ehea_port *port = netdev_priv(dev); | |
2645 | ||
8c4877a4 | 2646 | netif_info(port, ifdown, dev, "disabling port\n"); |
7a291083 | 2647 | |
2f69ae01 | 2648 | set_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
4bb073c0 | 2649 | cancel_work_sync(&port->reset_task); |
2aefcad8 | 2650 | cancel_delayed_work_sync(&port->stats_work); |
a5af6ad3 | 2651 | mutex_lock(&port->port_lock); |
b9564468 | 2652 | netif_tx_stop_all_queues(dev); |
0173b793 | 2653 | port_napi_disable(port); |
7a291083 | 2654 | ret = ehea_down(dev); |
a5af6ad3 | 2655 | mutex_unlock(&port->port_lock); |
2f69ae01 | 2656 | clear_bit(__EHEA_DISABLE_PORT_RESET, &port->flags); |
7a291083 JBT |
2657 | return ret; |
2658 | } | |
2659 | ||
22559c5d | 2660 | static void ehea_purge_sq(struct ehea_qp *orig_qp) |
2c69448b JBT |
2661 | { |
2662 | struct ehea_qp qp = *orig_qp; | |
2663 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2664 | struct ehea_swqe *swqe; | |
2665 | int wqe_index; | |
2666 | int i; | |
2667 | ||
2668 | for (i = 0; i < init_attr->act_nr_send_wqes; i++) { | |
2669 | swqe = ehea_get_swqe(&qp, &wqe_index); | |
2670 | swqe->tx_control |= EHEA_SWQE_PURGE; | |
2671 | } | |
2672 | } | |
2673 | ||
22559c5d | 2674 | static void ehea_flush_sq(struct ehea_port *port) |
44fb3126 TK |
2675 | { |
2676 | int i; | |
2677 | ||
723f28e4 | 2678 | for (i = 0; i < port->num_def_qps; i++) { |
44fb3126 TK |
2679 | struct ehea_port_res *pr = &port->port_res[i]; |
2680 | int swqe_max = pr->sq_skba_size - 2 - pr->swqe_ll_count; | |
5b27d427 BL |
2681 | int ret; |
2682 | ||
2683 | ret = wait_event_timeout(port->swqe_avail_wq, | |
2684 | atomic_read(&pr->swqe_avail) >= swqe_max, | |
2685 | msecs_to_jiffies(100)); | |
2686 | ||
2687 | if (!ret) { | |
8c4877a4 | 2688 | pr_err("WARNING: sq not flushed completely\n"); |
5b27d427 | 2689 | break; |
44fb3126 TK |
2690 | } |
2691 | } | |
2692 | } | |
2693 | ||
2c69448b JBT |
2694 | int ehea_stop_qps(struct net_device *dev) |
2695 | { | |
2696 | struct ehea_port *port = netdev_priv(dev); | |
2697 | struct ehea_adapter *adapter = port->adapter; | |
508d2b5d | 2698 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2699 | int ret = -EIO; |
2700 | int dret; | |
2701 | int i; | |
2702 | u64 hret; | |
2703 | u64 dummy64 = 0; | |
2704 | u16 dummy16 = 0; | |
2705 | ||
3faf2693 | 2706 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2707 | if (!cb0) { |
2708 | ret = -ENOMEM; | |
2709 | goto out; | |
2710 | } | |
2711 | ||
723f28e4 | 2712 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2713 | struct ehea_port_res *pr = &port->port_res[i]; |
2714 | struct ehea_qp *qp = pr->qp; | |
2715 | ||
2716 | /* Purge send queue */ | |
2717 | ehea_purge_sq(qp); | |
2718 | ||
2719 | /* Disable queue pair */ | |
2720 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2721 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2722 | cb0); | |
2723 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2724 | pr_err("query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2725 | goto out; |
2726 | } | |
2727 | ||
2728 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2729 | cb0->qp_ctl_reg &= ~H_QP_CR_ENABLED; | |
2730 | ||
2731 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2732 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2733 | 1), cb0, &dummy64, | |
2734 | &dummy64, &dummy16, &dummy16); | |
2735 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2736 | pr_err("modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2737 | goto out; |
2738 | } | |
2739 | ||
2740 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2741 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2742 | cb0); | |
2743 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2744 | pr_err("query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2745 | goto out; |
2746 | } | |
2747 | ||
2748 | /* deregister shared memory regions */ | |
2749 | dret = ehea_rem_smrs(pr); | |
2750 | if (dret) { | |
8c4877a4 | 2751 | pr_err("unreg shared memory region failed\n"); |
2c69448b JBT |
2752 | goto out; |
2753 | } | |
2754 | } | |
2755 | ||
2756 | ret = 0; | |
2757 | out: | |
3faf2693 | 2758 | free_page((unsigned long)cb0); |
2c69448b JBT |
2759 | |
2760 | return ret; | |
2761 | } | |
2762 | ||
508d2b5d | 2763 | void ehea_update_rqs(struct ehea_qp *orig_qp, struct ehea_port_res *pr) |
2c69448b JBT |
2764 | { |
2765 | struct ehea_qp qp = *orig_qp; | |
2766 | struct ehea_qp_init_attr *init_attr = &qp.init_attr; | |
2767 | struct ehea_rwqe *rwqe; | |
2768 | struct sk_buff **skba_rq2 = pr->rq2_skba.arr; | |
2769 | struct sk_buff **skba_rq3 = pr->rq3_skba.arr; | |
2770 | struct sk_buff *skb; | |
2771 | u32 lkey = pr->recv_mr.lkey; | |
2772 | ||
2773 | ||
2774 | int i; | |
2775 | int index; | |
2776 | ||
2777 | for (i = 0; i < init_attr->act_nr_rwqes_rq2 + 1; i++) { | |
2778 | rwqe = ehea_get_next_rwqe(&qp, 2); | |
2779 | rwqe->sg_list[0].l_key = lkey; | |
2780 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2781 | skb = skba_rq2[index]; | |
2782 | if (skb) | |
2783 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2784 | } | |
2785 | ||
2786 | for (i = 0; i < init_attr->act_nr_rwqes_rq3 + 1; i++) { | |
2787 | rwqe = ehea_get_next_rwqe(&qp, 3); | |
2788 | rwqe->sg_list[0].l_key = lkey; | |
2789 | index = EHEA_BMASK_GET(EHEA_WR_ID_INDEX, rwqe->wr_id); | |
2790 | skb = skba_rq3[index]; | |
2791 | if (skb) | |
2792 | rwqe->sg_list[0].vaddr = ehea_map_vaddr(skb->data); | |
2793 | } | |
2794 | } | |
2795 | ||
2796 | int ehea_restart_qps(struct net_device *dev) | |
2797 | { | |
2798 | struct ehea_port *port = netdev_priv(dev); | |
2799 | struct ehea_adapter *adapter = port->adapter; | |
2800 | int ret = 0; | |
2801 | int i; | |
2802 | ||
508d2b5d | 2803 | struct hcp_modify_qp_cb0 *cb0; |
2c69448b JBT |
2804 | u64 hret; |
2805 | u64 dummy64 = 0; | |
2806 | u16 dummy16 = 0; | |
2807 | ||
3faf2693 | 2808 | cb0 = (void *)get_zeroed_page(GFP_KERNEL); |
2c69448b JBT |
2809 | if (!cb0) { |
2810 | ret = -ENOMEM; | |
2811 | goto out; | |
2812 | } | |
2813 | ||
723f28e4 | 2814 | for (i = 0; i < (port->num_def_qps); i++) { |
2c69448b JBT |
2815 | struct ehea_port_res *pr = &port->port_res[i]; |
2816 | struct ehea_qp *qp = pr->qp; | |
2817 | ||
2818 | ret = ehea_gen_smrs(pr); | |
2819 | if (ret) { | |
8c4877a4 | 2820 | netdev_err(dev, "creation of shared memory regions failed\n"); |
2c69448b JBT |
2821 | goto out; |
2822 | } | |
2823 | ||
2824 | ehea_update_rqs(qp, pr); | |
2825 | ||
2826 | /* Enable queue pair */ | |
2827 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2828 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2829 | cb0); | |
2830 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2831 | netdev_err(dev, "query_ehea_qp failed (1)\n"); |
2c69448b JBT |
2832 | goto out; |
2833 | } | |
2834 | ||
2835 | cb0->qp_ctl_reg = (cb0->qp_ctl_reg & H_QP_CR_RES_STATE) << 8; | |
2836 | cb0->qp_ctl_reg |= H_QP_CR_ENABLED; | |
2837 | ||
2838 | hret = ehea_h_modify_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2839 | EHEA_BMASK_SET(H_QPCB0_QP_CTL_REG, | |
2840 | 1), cb0, &dummy64, | |
2841 | &dummy64, &dummy16, &dummy16); | |
2842 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2843 | netdev_err(dev, "modify_ehea_qp failed (1)\n"); |
2c69448b JBT |
2844 | goto out; |
2845 | } | |
2846 | ||
2847 | hret = ehea_h_query_ehea_qp(adapter->handle, 0, qp->fw_handle, | |
2848 | EHEA_BMASK_SET(H_QPCB0_ALL, 0xFFFF), | |
2849 | cb0); | |
2850 | if (hret != H_SUCCESS) { | |
8c4877a4 | 2851 | netdev_err(dev, "query_ehea_qp failed (2)\n"); |
2c69448b JBT |
2852 | goto out; |
2853 | } | |
2854 | ||
2855 | /* refill entire queue */ | |
2856 | ehea_refill_rq1(pr, pr->rq1_skba.index, 0); | |
2857 | ehea_refill_rq2(pr, 0); | |
2858 | ehea_refill_rq3(pr, 0); | |
2859 | } | |
2860 | out: | |
3faf2693 | 2861 | free_page((unsigned long)cb0); |
2c69448b JBT |
2862 | |
2863 | return ret; | |
2864 | } | |
2865 | ||
c4028958 | 2866 | static void ehea_reset_port(struct work_struct *work) |
7a291083 JBT |
2867 | { |
2868 | int ret; | |
c4028958 DH |
2869 | struct ehea_port *port = |
2870 | container_of(work, struct ehea_port, reset_task); | |
2871 | struct net_device *dev = port->netdev; | |
7a291083 | 2872 | |
099473c1 | 2873 | mutex_lock(&dlpar_mem_lock); |
7a291083 | 2874 | port->resets++; |
a5af6ad3 | 2875 | mutex_lock(&port->port_lock); |
b9564468 | 2876 | netif_tx_disable(dev); |
bea3348e SH |
2877 | |
2878 | port_napi_disable(port); | |
7a291083 | 2879 | |
44c82152 | 2880 | ehea_down(dev); |
7a291083 JBT |
2881 | |
2882 | ret = ehea_up(dev); | |
44c82152 | 2883 | if (ret) |
7a291083 | 2884 | goto out; |
7a291083 | 2885 | |
2c69448b JBT |
2886 | ehea_set_multicast_list(dev); |
2887 | ||
8c4877a4 | 2888 | netif_info(port, timer, dev, "reset successful\n"); |
7a291083 | 2889 | |
bea3348e SH |
2890 | port_napi_enable(port); |
2891 | ||
b9564468 | 2892 | netif_tx_wake_all_queues(dev); |
7a291083 | 2893 | out: |
a5af6ad3 | 2894 | mutex_unlock(&port->port_lock); |
099473c1 | 2895 | mutex_unlock(&dlpar_mem_lock); |
7a291083 JBT |
2896 | } |
2897 | ||
3d6b892b | 2898 | static void ehea_rereg_mrs(void) |
44c82152 TK |
2899 | { |
2900 | int ret, i; | |
2901 | struct ehea_adapter *adapter; | |
2902 | ||
8c4877a4 | 2903 | pr_info("LPAR memory changed - re-initializing driver\n"); |
44c82152 TK |
2904 | |
2905 | list_for_each_entry(adapter, &adapter_list, list) | |
2906 | if (adapter->active_ports) { | |
2907 | /* Shutdown all ports */ | |
2908 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2909 | struct ehea_port *port = adapter->port[i]; | |
a5af6ad3 | 2910 | struct net_device *dev; |
44c82152 | 2911 | |
a5af6ad3 DW |
2912 | if (!port) |
2913 | continue; | |
44c82152 | 2914 | |
a5af6ad3 DW |
2915 | dev = port->netdev; |
2916 | ||
2917 | if (dev->flags & IFF_UP) { | |
2918 | mutex_lock(&port->port_lock); | |
b9564468 | 2919 | netif_tx_disable(dev); |
df39e8ba | 2920 | ehea_flush_sq(port); |
a5af6ad3 DW |
2921 | ret = ehea_stop_qps(dev); |
2922 | if (ret) { | |
2923 | mutex_unlock(&port->port_lock); | |
2924 | goto out; | |
44c82152 | 2925 | } |
a5af6ad3 DW |
2926 | port_napi_disable(port); |
2927 | mutex_unlock(&port->port_lock); | |
44c82152 | 2928 | } |
2928db4c | 2929 | reset_sq_restart_flag(port); |
44c82152 TK |
2930 | } |
2931 | ||
2932 | /* Unregister old memory region */ | |
2933 | ret = ehea_rem_mr(&adapter->mr); | |
2934 | if (ret) { | |
8c4877a4 | 2935 | pr_err("unregister MR failed - driver inoperable!\n"); |
44c82152 TK |
2936 | goto out; |
2937 | } | |
2938 | } | |
2939 | ||
44c82152 TK |
2940 | clear_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
2941 | ||
2942 | list_for_each_entry(adapter, &adapter_list, list) | |
2943 | if (adapter->active_ports) { | |
2944 | /* Register new memory region */ | |
2945 | ret = ehea_reg_kernel_mr(adapter, &adapter->mr); | |
2946 | if (ret) { | |
8c4877a4 | 2947 | pr_err("register MR failed - driver inoperable!\n"); |
44c82152 TK |
2948 | goto out; |
2949 | } | |
2950 | ||
2951 | /* Restart all ports */ | |
2952 | for (i = 0; i < EHEA_MAX_PORTS; i++) { | |
2953 | struct ehea_port *port = adapter->port[i]; | |
2954 | ||
2955 | if (port) { | |
2956 | struct net_device *dev = port->netdev; | |
2957 | ||
2958 | if (dev->flags & IFF_UP) { | |
a5af6ad3 | 2959 | mutex_lock(&port->port_lock); |
2c69448b | 2960 | ret = ehea_restart_qps(dev); |
6f4d6dc1 BL |
2961 | if (!ret) { |
2962 | check_sqs(port); | |
2963 | port_napi_enable(port); | |
b9564468 | 2964 | netif_tx_wake_all_queues(dev); |
6f4d6dc1 BL |
2965 | } else { |
2966 | netdev_err(dev, "Unable to restart QPS\n"); | |
2967 | } | |
a5af6ad3 | 2968 | mutex_unlock(&port->port_lock); |
44c82152 TK |
2969 | } |
2970 | } | |
2971 | } | |
2972 | } | |
8c4877a4 | 2973 | pr_info("re-initializing driver complete\n"); |
44c82152 TK |
2974 | out: |
2975 | return; | |
2976 | } | |
2977 | ||
7a291083 JBT |
2978 | static void ehea_tx_watchdog(struct net_device *dev) |
2979 | { | |
2980 | struct ehea_port *port = netdev_priv(dev); | |
2981 | ||
2c69448b JBT |
2982 | if (netif_carrier_ok(dev) && |
2983 | !test_bit(__EHEA_STOP_XFER, &ehea_driver_flags)) | |
2f69ae01 | 2984 | ehea_schedule_port_reset(port); |
7a291083 JBT |
2985 | } |
2986 | ||
2987 | int ehea_sense_adapter_attr(struct ehea_adapter *adapter) | |
2988 | { | |
2989 | struct hcp_query_ehea *cb; | |
2990 | u64 hret; | |
2991 | int ret; | |
2992 | ||
3faf2693 | 2993 | cb = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 JBT |
2994 | if (!cb) { |
2995 | ret = -ENOMEM; | |
2996 | goto out; | |
2997 | } | |
2998 | ||
2999 | hret = ehea_h_query_ehea(adapter->handle, cb); | |
3000 | ||
3001 | if (hret != H_SUCCESS) { | |
3002 | ret = -EIO; | |
3003 | goto out_herr; | |
3004 | } | |
3005 | ||
7a291083 JBT |
3006 | adapter->max_mc_mac = cb->max_mc_mac - 1; |
3007 | ret = 0; | |
3008 | ||
3009 | out_herr: | |
3faf2693 | 3010 | free_page((unsigned long)cb); |
7a291083 JBT |
3011 | out: |
3012 | return ret; | |
3013 | } | |
3014 | ||
1acf2318 | 3015 | int ehea_get_jumboframe_status(struct ehea_port *port, int *jumbo) |
7a291083 | 3016 | { |
7a291083 | 3017 | struct hcp_ehea_port_cb4 *cb4; |
1acf2318 JBT |
3018 | u64 hret; |
3019 | int ret = 0; | |
7a291083 | 3020 | |
1acf2318 | 3021 | *jumbo = 0; |
7a291083 | 3022 | |
1acf2318 | 3023 | /* (Try to) enable *jumbo frames */ |
3faf2693 | 3024 | cb4 = (void *)get_zeroed_page(GFP_KERNEL); |
7a291083 | 3025 | if (!cb4) { |
8c4877a4 | 3026 | pr_err("no mem for cb4\n"); |
1acf2318 JBT |
3027 | ret = -ENOMEM; |
3028 | goto out; | |
7a291083 | 3029 | } else { |
1acf2318 | 3030 | hret = ehea_h_query_ehea_port(port->adapter->handle, |
9c750b7d TK |
3031 | port->logical_port_id, |
3032 | H_PORT_CB4, | |
3033 | H_PORT_CB4_JUMBO, cb4); | |
9c750b7d TK |
3034 | if (hret == H_SUCCESS) { |
3035 | if (cb4->jumbo_frame) | |
1acf2318 | 3036 | *jumbo = 1; |
9c750b7d TK |
3037 | else { |
3038 | cb4->jumbo_frame = 1; | |
1acf2318 JBT |
3039 | hret = ehea_h_modify_ehea_port(port->adapter-> |
3040 | handle, | |
9c750b7d | 3041 | port-> |
1acf2318 | 3042 | logical_port_id, |
9c750b7d TK |
3043 | H_PORT_CB4, |
3044 | H_PORT_CB4_JUMBO, | |
3045 | cb4); | |
3046 | if (hret == H_SUCCESS) | |
1acf2318 | 3047 | *jumbo = 1; |
9c750b7d | 3048 | } |
1acf2318 JBT |
3049 | } else |
3050 | ret = -EINVAL; | |
3051 | ||
3faf2693 | 3052 | free_page((unsigned long)cb4); |
7a291083 | 3053 | } |
1acf2318 JBT |
3054 | out: |
3055 | return ret; | |
3056 | } | |
3057 | ||
3058 | static ssize_t ehea_show_port_id(struct device *dev, | |
3059 | struct device_attribute *attr, char *buf) | |
3060 | { | |
3061 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
a8e34fda | 3062 | return sprintf(buf, "%d", port->logical_port_id); |
1acf2318 JBT |
3063 | } |
3064 | ||
3065 | static DEVICE_ATTR(log_port_id, S_IRUSR | S_IRGRP | S_IROTH, ehea_show_port_id, | |
3066 | NULL); | |
3067 | ||
3068 | static void __devinit logical_port_release(struct device *dev) | |
3069 | { | |
3070 | struct ehea_port *port = container_of(dev, struct ehea_port, ofdev.dev); | |
61c7a080 | 3071 | of_node_put(port->ofdev.dev.of_node); |
1acf2318 JBT |
3072 | } |
3073 | ||
3074 | static struct device *ehea_register_port(struct ehea_port *port, | |
3075 | struct device_node *dn) | |
3076 | { | |
3077 | int ret; | |
3078 | ||
61c7a080 | 3079 | port->ofdev.dev.of_node = of_node_get(dn); |
6b08f3ae | 3080 | port->ofdev.dev.parent = &port->adapter->ofdev->dev; |
d1dea38d | 3081 | port->ofdev.dev.bus = &ibmebus_bus_type; |
1acf2318 | 3082 | |
db1d7bf7 | 3083 | dev_set_name(&port->ofdev.dev, "port%d", port_name_cnt++); |
1acf2318 JBT |
3084 | port->ofdev.dev.release = logical_port_release; |
3085 | ||
3086 | ret = of_device_register(&port->ofdev); | |
3087 | if (ret) { | |
8c4877a4 | 3088 | pr_err("failed to register device. ret=%d\n", ret); |
1acf2318 JBT |
3089 | goto out; |
3090 | } | |
3091 | ||
3092 | ret = device_create_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
d1d25aab | 3093 | if (ret) { |
8c4877a4 | 3094 | pr_err("failed to register attributes, ret=%d\n", ret); |
1acf2318 JBT |
3095 | goto out_unreg_of_dev; |
3096 | } | |
e542aa6b | 3097 | |
1acf2318 JBT |
3098 | return &port->ofdev.dev; |
3099 | ||
3100 | out_unreg_of_dev: | |
3101 | of_device_unregister(&port->ofdev); | |
3102 | out: | |
3103 | return NULL; | |
3104 | } | |
3105 | ||
3106 | static void ehea_unregister_port(struct ehea_port *port) | |
3107 | { | |
3108 | device_remove_file(&port->ofdev.dev, &dev_attr_log_port_id); | |
3109 | of_device_unregister(&port->ofdev); | |
3110 | } | |
3111 | ||
086c1b2c TK |
3112 | static const struct net_device_ops ehea_netdev_ops = { |
3113 | .ndo_open = ehea_open, | |
3114 | .ndo_stop = ehea_stop, | |
3115 | .ndo_start_xmit = ehea_start_xmit, | |
3116 | #ifdef CONFIG_NET_POLL_CONTROLLER | |
3117 | .ndo_poll_controller = ehea_netpoll, | |
3118 | #endif | |
3119 | .ndo_get_stats = ehea_get_stats, | |
3120 | .ndo_set_mac_address = ehea_set_mac_addr, | |
240c102d | 3121 | .ndo_validate_addr = eth_validate_addr, |
afc4b13d | 3122 | .ndo_set_rx_mode = ehea_set_multicast_list, |
086c1b2c | 3123 | .ndo_change_mtu = ehea_change_mtu, |
086c1b2c | 3124 | .ndo_vlan_rx_add_vid = ehea_vlan_rx_add_vid, |
32e8f9a8 AB |
3125 | .ndo_vlan_rx_kill_vid = ehea_vlan_rx_kill_vid, |
3126 | .ndo_tx_timeout = ehea_tx_watchdog, | |
086c1b2c TK |
3127 | }; |
3128 | ||
1acf2318 JBT |
3129 | struct ehea_port *ehea_setup_single_port(struct ehea_adapter *adapter, |
3130 | u32 logical_port_id, | |
3131 | struct device_node *dn) | |
3132 | { | |
3133 | int ret; | |
3134 | struct net_device *dev; | |
3135 | struct ehea_port *port; | |
3136 | struct device *port_dev; | |
3137 | int jumbo; | |
3138 | ||
3139 | /* allocate memory for the port structures */ | |
b9564468 | 3140 | dev = alloc_etherdev_mq(sizeof(struct ehea_port), EHEA_MAX_PORT_RES); |
1acf2318 JBT |
3141 | |
3142 | if (!dev) { | |
8c4877a4 | 3143 | pr_err("no mem for net_device\n"); |
1acf2318 JBT |
3144 | ret = -ENOMEM; |
3145 | goto out_err; | |
3146 | } | |
3147 | ||
3148 | port = netdev_priv(dev); | |
3149 | ||
a5af6ad3 | 3150 | mutex_init(&port->port_lock); |
1acf2318 JBT |
3151 | port->state = EHEA_PORT_DOWN; |
3152 | port->sig_comp_iv = sq_entries / 10; | |
3153 | ||
3154 | port->adapter = adapter; | |
3155 | port->netdev = dev; | |
3156 | port->logical_port_id = logical_port_id; | |
3157 | ||
3158 | port->msg_enable = netif_msg_init(msg_level, EHEA_MSG_DEFAULT); | |
3159 | ||
3160 | port->mc_list = kzalloc(sizeof(struct ehea_mc_list), GFP_KERNEL); | |
3161 | if (!port->mc_list) { | |
3162 | ret = -ENOMEM; | |
3163 | goto out_free_ethdev; | |
3164 | } | |
3165 | ||
3166 | INIT_LIST_HEAD(&port->mc_list->list); | |
3167 | ||
3168 | ret = ehea_sense_port_attr(port); | |
3169 | if (ret) | |
3170 | goto out_free_mc_list; | |
3171 | ||
b9564468 | 3172 | netif_set_real_num_rx_queues(dev, port->num_def_qps); |
723f28e4 | 3173 | netif_set_real_num_tx_queues(dev, port->num_def_qps); |
b9564468 | 3174 | |
1acf2318 JBT |
3175 | port_dev = ehea_register_port(port, dn); |
3176 | if (!port_dev) | |
3177 | goto out_free_mc_list; | |
3178 | ||
3179 | SET_NETDEV_DEV(dev, port_dev); | |
7a291083 JBT |
3180 | |
3181 | /* initialize net_device structure */ | |
7a291083 JBT |
3182 | memcpy(dev->dev_addr, &port->mac_addr, ETH_ALEN); |
3183 | ||
086c1b2c TK |
3184 | dev->netdev_ops = &ehea_netdev_ops; |
3185 | ehea_set_ethtool_ops(dev); | |
3186 | ||
f4786a96 MM |
3187 | dev->hw_features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO |
3188 | | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX | NETIF_F_LRO; | |
7a291083 | 3189 | dev->features = NETIF_F_SG | NETIF_F_FRAGLIST | NETIF_F_TSO |
dc01c447 | 3190 | | NETIF_F_HIGHDMA | NETIF_F_IP_CSUM | NETIF_F_HW_VLAN_TX |
7a291083 | 3191 | | NETIF_F_HW_VLAN_RX | NETIF_F_HW_VLAN_FILTER |
3f7947b9 | 3192 | | NETIF_F_RXCSUM; |
7a291083 JBT |
3193 | dev->watchdog_timeo = EHEA_WATCH_DOG_TIMEOUT; |
3194 | ||
c7757fdb BL |
3195 | if (use_lro) |
3196 | dev->features |= NETIF_F_LRO; | |
3197 | ||
c4028958 | 3198 | INIT_WORK(&port->reset_task, ehea_reset_port); |
2aefcad8 | 3199 | INIT_DELAYED_WORK(&port->stats_work, ehea_update_stats); |
7a291083 | 3200 | |
21ccc793 AB |
3201 | init_waitqueue_head(&port->swqe_avail_wq); |
3202 | init_waitqueue_head(&port->restart_wq); | |
3203 | ||
2aefcad8 | 3204 | memset(&port->stats, 0, sizeof(struct net_device_stats)); |
7a291083 JBT |
3205 | ret = register_netdev(dev); |
3206 | if (ret) { | |
8c4877a4 | 3207 | pr_err("register_netdev failed. ret=%d\n", ret); |
21eee2dd | 3208 | goto out_unreg_port; |
7a291083 JBT |
3209 | } |
3210 | ||
d4dc4ec9 JBT |
3211 | port->lro_max_aggr = lro_max_aggr; |
3212 | ||
1acf2318 | 3213 | ret = ehea_get_jumboframe_status(port, &jumbo); |
e542aa6b | 3214 | if (ret) |
8c4877a4 | 3215 | netdev_err(dev, "failed determining jumbo frame status\n"); |
1acf2318 | 3216 | |
8c4877a4 JP |
3217 | netdev_info(dev, "Jumbo frames are %sabled\n", |
3218 | jumbo == 1 ? "en" : "dis"); | |
9c750b7d | 3219 | |
44c82152 TK |
3220 | adapter->active_ports++; |
3221 | ||
1acf2318 | 3222 | return port; |
7a291083 | 3223 | |
1acf2318 JBT |
3224 | out_unreg_port: |
3225 | ehea_unregister_port(port); | |
3226 | ||
3227 | out_free_mc_list: | |
7a291083 | 3228 | kfree(port->mc_list); |
1acf2318 JBT |
3229 | |
3230 | out_free_ethdev: | |
3231 | free_netdev(dev); | |
3232 | ||
3233 | out_err: | |
8c4877a4 JP |
3234 | pr_err("setting up logical port with id=%d failed, ret=%d\n", |
3235 | logical_port_id, ret); | |
1acf2318 JBT |
3236 | return NULL; |
3237 | } | |
3238 | ||
3239 | static void ehea_shutdown_single_port(struct ehea_port *port) | |
3240 | { | |
7fb1c2ac | 3241 | struct ehea_adapter *adapter = port->adapter; |
f5c35cc1 TH |
3242 | |
3243 | cancel_work_sync(&port->reset_task); | |
2aefcad8 | 3244 | cancel_delayed_work_sync(&port->stats_work); |
1acf2318 JBT |
3245 | unregister_netdev(port->netdev); |
3246 | ehea_unregister_port(port); | |
3247 | kfree(port->mc_list); | |
3248 | free_netdev(port->netdev); | |
7fb1c2ac | 3249 | adapter->active_ports--; |
7a291083 JBT |
3250 | } |
3251 | ||
3252 | static int ehea_setup_ports(struct ehea_adapter *adapter) | |
3253 | { | |
1acf2318 JBT |
3254 | struct device_node *lhea_dn; |
3255 | struct device_node *eth_dn = NULL; | |
d1d25aab | 3256 | |
9f9a3b8a | 3257 | const u32 *dn_log_port_id; |
1acf2318 JBT |
3258 | int i = 0; |
3259 | ||
61c7a080 | 3260 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3261 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3262 | |
40cd3a45 | 3263 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3264 | NULL); |
1acf2318 | 3265 | if (!dn_log_port_id) { |
8c4877a4 JP |
3266 | pr_err("bad device node: eth_dn name=%s\n", |
3267 | eth_dn->full_name); | |
1acf2318 JBT |
3268 | continue; |
3269 | } | |
7a291083 | 3270 | |
1211bb6d | 3271 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3272 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3273 | of_node_put(eth_dn); |
3274 | return -EIO; | |
3275 | } | |
3276 | ||
1acf2318 JBT |
3277 | adapter->port[i] = ehea_setup_single_port(adapter, |
3278 | *dn_log_port_id, | |
3279 | eth_dn); | |
7a291083 | 3280 | if (adapter->port[i]) |
8c4877a4 JP |
3281 | netdev_info(adapter->port[i]->netdev, |
3282 | "logical port id #%d\n", *dn_log_port_id); | |
1211bb6d TK |
3283 | else |
3284 | ehea_remove_adapter_mr(adapter); | |
3285 | ||
1acf2318 | 3286 | i++; |
ee289b64 | 3287 | } |
1211bb6d | 3288 | return 0; |
1acf2318 JBT |
3289 | } |
3290 | ||
e542aa6b JBT |
3291 | static struct device_node *ehea_get_eth_dn(struct ehea_adapter *adapter, |
3292 | u32 logical_port_id) | |
1acf2318 JBT |
3293 | { |
3294 | struct device_node *lhea_dn; | |
3295 | struct device_node *eth_dn = NULL; | |
9f9a3b8a | 3296 | const u32 *dn_log_port_id; |
1acf2318 | 3297 | |
61c7a080 | 3298 | lhea_dn = adapter->ofdev->dev.of_node; |
1eef4e04 | 3299 | while ((eth_dn = of_get_next_child(lhea_dn, eth_dn))) { |
e542aa6b | 3300 | |
40cd3a45 | 3301 | dn_log_port_id = of_get_property(eth_dn, "ibm,hea-port-no", |
d1d25aab | 3302 | NULL); |
1acf2318 JBT |
3303 | if (dn_log_port_id) |
3304 | if (*dn_log_port_id == logical_port_id) | |
3305 | return eth_dn; | |
ee289b64 | 3306 | } |
1acf2318 JBT |
3307 | |
3308 | return NULL; | |
3309 | } | |
3310 | ||
3311 | static ssize_t ehea_probe_port(struct device *dev, | |
3312 | struct device_attribute *attr, | |
3313 | const char *buf, size_t count) | |
3314 | { | |
c7ae011d | 3315 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3316 | struct ehea_port *port; |
3317 | struct device_node *eth_dn = NULL; | |
3318 | int i; | |
3319 | ||
3320 | u32 logical_port_id; | |
3321 | ||
a8e34fda | 3322 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3323 | |
3324 | port = ehea_get_port(adapter, logical_port_id); | |
3325 | ||
3326 | if (port) { | |
8c4877a4 JP |
3327 | netdev_info(port->netdev, "adding port with logical port id=%d failed: port already configured\n", |
3328 | logical_port_id); | |
1acf2318 | 3329 | return -EINVAL; |
7a291083 | 3330 | } |
e542aa6b | 3331 | |
1acf2318 | 3332 | eth_dn = ehea_get_eth_dn(adapter, logical_port_id); |
7a291083 | 3333 | |
1acf2318 | 3334 | if (!eth_dn) { |
8c4877a4 | 3335 | pr_info("no logical port with id %d found\n", logical_port_id); |
1acf2318 JBT |
3336 | return -EINVAL; |
3337 | } | |
e542aa6b | 3338 | |
1211bb6d | 3339 | if (ehea_add_adapter_mr(adapter)) { |
8c4877a4 | 3340 | pr_err("creating MR failed\n"); |
1211bb6d TK |
3341 | return -EIO; |
3342 | } | |
3343 | ||
1acf2318 | 3344 | port = ehea_setup_single_port(adapter, logical_port_id, eth_dn); |
7a291083 | 3345 | |
1eef4e04 JBT |
3346 | of_node_put(eth_dn); |
3347 | ||
1acf2318 | 3348 | if (port) { |
508d2b5d | 3349 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3350 | if (!adapter->port[i]) { |
3351 | adapter->port[i] = port; | |
3352 | break; | |
3353 | } | |
7a291083 | 3354 | |
8c4877a4 JP |
3355 | netdev_info(port->netdev, "added: (logical port id=%d)\n", |
3356 | logical_port_id); | |
1211bb6d TK |
3357 | } else { |
3358 | ehea_remove_adapter_mr(adapter); | |
e542aa6b | 3359 | return -EIO; |
1211bb6d | 3360 | } |
7a291083 | 3361 | |
1acf2318 JBT |
3362 | return (ssize_t) count; |
3363 | } | |
3364 | ||
3365 | static ssize_t ehea_remove_port(struct device *dev, | |
3366 | struct device_attribute *attr, | |
3367 | const char *buf, size_t count) | |
3368 | { | |
c7ae011d | 3369 | struct ehea_adapter *adapter = dev_get_drvdata(dev); |
1acf2318 JBT |
3370 | struct ehea_port *port; |
3371 | int i; | |
3372 | u32 logical_port_id; | |
3373 | ||
a8e34fda | 3374 | sscanf(buf, "%d", &logical_port_id); |
1acf2318 JBT |
3375 | |
3376 | port = ehea_get_port(adapter, logical_port_id); | |
3377 | ||
3378 | if (port) { | |
8c4877a4 JP |
3379 | netdev_info(port->netdev, "removed: (logical port id=%d)\n", |
3380 | logical_port_id); | |
1acf2318 JBT |
3381 | |
3382 | ehea_shutdown_single_port(port); | |
3383 | ||
508d2b5d | 3384 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
1acf2318 JBT |
3385 | if (adapter->port[i] == port) { |
3386 | adapter->port[i] = NULL; | |
3387 | break; | |
3388 | } | |
3389 | } else { | |
8c4877a4 JP |
3390 | pr_err("removing port with logical port id=%d failed. port not configured.\n", |
3391 | logical_port_id); | |
1acf2318 JBT |
3392 | return -EINVAL; |
3393 | } | |
3394 | ||
1211bb6d TK |
3395 | ehea_remove_adapter_mr(adapter); |
3396 | ||
1acf2318 JBT |
3397 | return (ssize_t) count; |
3398 | } | |
3399 | ||
3400 | static DEVICE_ATTR(probe_port, S_IWUSR, NULL, ehea_probe_port); | |
3401 | static DEVICE_ATTR(remove_port, S_IWUSR, NULL, ehea_remove_port); | |
3402 | ||
2dc11581 | 3403 | int ehea_create_device_sysfs(struct platform_device *dev) |
1acf2318 | 3404 | { |
6b08f3ae | 3405 | int ret = device_create_file(&dev->dev, &dev_attr_probe_port); |
1acf2318 JBT |
3406 | if (ret) |
3407 | goto out; | |
3408 | ||
6b08f3ae | 3409 | ret = device_create_file(&dev->dev, &dev_attr_remove_port); |
1acf2318 | 3410 | out: |
7a291083 JBT |
3411 | return ret; |
3412 | } | |
3413 | ||
2dc11581 | 3414 | void ehea_remove_device_sysfs(struct platform_device *dev) |
1acf2318 | 3415 | { |
6b08f3ae JF |
3416 | device_remove_file(&dev->dev, &dev_attr_probe_port); |
3417 | device_remove_file(&dev->dev, &dev_attr_remove_port); | |
1acf2318 JBT |
3418 | } |
3419 | ||
2dc11581 | 3420 | static int __devinit ehea_probe_adapter(struct platform_device *dev, |
1acf2318 | 3421 | const struct of_device_id *id) |
7a291083 JBT |
3422 | { |
3423 | struct ehea_adapter *adapter; | |
9f9a3b8a | 3424 | const u64 *adapter_handle; |
7a291083 JBT |
3425 | int ret; |
3426 | ||
61c7a080 | 3427 | if (!dev || !dev->dev.of_node) { |
8c4877a4 | 3428 | pr_err("Invalid ibmebus device probed\n"); |
1eef4e04 JBT |
3429 | return -EINVAL; |
3430 | } | |
3431 | ||
7a291083 JBT |
3432 | adapter = kzalloc(sizeof(*adapter), GFP_KERNEL); |
3433 | if (!adapter) { | |
3434 | ret = -ENOMEM; | |
6b08f3ae | 3435 | dev_err(&dev->dev, "no mem for ehea_adapter\n"); |
7a291083 JBT |
3436 | goto out; |
3437 | } | |
3438 | ||
44c82152 TK |
3439 | list_add(&adapter->list, &adapter_list); |
3440 | ||
6b08f3ae | 3441 | adapter->ofdev = dev; |
1acf2318 | 3442 | |
61c7a080 | 3443 | adapter_handle = of_get_property(dev->dev.of_node, "ibm,hea-handle", |
d1d25aab | 3444 | NULL); |
061bf3cd TK |
3445 | if (adapter_handle) |
3446 | adapter->handle = *adapter_handle; | |
3447 | ||
3448 | if (!adapter->handle) { | |
6b08f3ae | 3449 | dev_err(&dev->dev, "failed getting handle for adapter" |
61c7a080 | 3450 | " '%s'\n", dev->dev.of_node->full_name); |
7a291083 JBT |
3451 | ret = -ENODEV; |
3452 | goto out_free_ad; | |
3453 | } | |
3454 | ||
7a291083 JBT |
3455 | adapter->pd = EHEA_PD_ID; |
3456 | ||
c7ae011d | 3457 | dev_set_drvdata(&dev->dev, adapter); |
7a291083 | 3458 | |
7a291083 JBT |
3459 | |
3460 | /* initialize adapter and ports */ | |
3461 | /* get adapter properties */ | |
3462 | ret = ehea_sense_adapter_attr(adapter); | |
3463 | if (ret) { | |
898eb71c | 3464 | dev_err(&dev->dev, "sense_adapter_attr failed: %d\n", ret); |
1211bb6d | 3465 | goto out_free_ad; |
7a291083 | 3466 | } |
7a291083 JBT |
3467 | |
3468 | adapter->neq = ehea_create_eq(adapter, | |
3469 | EHEA_NEQ, EHEA_MAX_ENTRIES_EQ, 1); | |
3470 | if (!adapter->neq) { | |
1eef4e04 | 3471 | ret = -EIO; |
898eb71c | 3472 | dev_err(&dev->dev, "NEQ creation failed\n"); |
1211bb6d | 3473 | goto out_free_ad; |
7a291083 JBT |
3474 | } |
3475 | ||
3476 | tasklet_init(&adapter->neq_tasklet, ehea_neq_tasklet, | |
3477 | (unsigned long)adapter); | |
3478 | ||
6b08f3ae | 3479 | ret = ibmebus_request_irq(adapter->neq->attr.ist1, |
38515e90 | 3480 | ehea_interrupt_neq, IRQF_DISABLED, |
7a291083 JBT |
3481 | "ehea_neq", adapter); |
3482 | if (ret) { | |
898eb71c | 3483 | dev_err(&dev->dev, "requesting NEQ IRQ failed\n"); |
7a291083 JBT |
3484 | goto out_kill_eq; |
3485 | } | |
3486 | ||
1eef4e04 JBT |
3487 | ret = ehea_create_device_sysfs(dev); |
3488 | if (ret) | |
3bf76b81 | 3489 | goto out_free_irq; |
1acf2318 | 3490 | |
7a291083 JBT |
3491 | ret = ehea_setup_ports(adapter); |
3492 | if (ret) { | |
898eb71c | 3493 | dev_err(&dev->dev, "setup_ports failed\n"); |
1acf2318 | 3494 | goto out_rem_dev_sysfs; |
7a291083 JBT |
3495 | } |
3496 | ||
3497 | ret = 0; | |
3498 | goto out; | |
3499 | ||
1acf2318 JBT |
3500 | out_rem_dev_sysfs: |
3501 | ehea_remove_device_sysfs(dev); | |
3502 | ||
7a291083 | 3503 | out_free_irq: |
6b08f3ae | 3504 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
7a291083 JBT |
3505 | |
3506 | out_kill_eq: | |
3507 | ehea_destroy_eq(adapter->neq); | |
3508 | ||
7a291083 | 3509 | out_free_ad: |
51621fbd | 3510 | list_del(&adapter->list); |
7a291083 | 3511 | kfree(adapter); |
21eee2dd | 3512 | |
7a291083 | 3513 | out: |
21eee2dd | 3514 | ehea_update_firmware_handles(); |
52e21b1b | 3515 | |
7a291083 JBT |
3516 | return ret; |
3517 | } | |
3518 | ||
2dc11581 | 3519 | static int __devexit ehea_remove(struct platform_device *dev) |
7a291083 | 3520 | { |
c7ae011d | 3521 | struct ehea_adapter *adapter = dev_get_drvdata(&dev->dev); |
7a291083 JBT |
3522 | int i; |
3523 | ||
1acf2318 | 3524 | for (i = 0; i < EHEA_MAX_PORTS; i++) |
7a291083 JBT |
3525 | if (adapter->port[i]) { |
3526 | ehea_shutdown_single_port(adapter->port[i]); | |
3527 | adapter->port[i] = NULL; | |
3528 | } | |
1acf2318 JBT |
3529 | |
3530 | ehea_remove_device_sysfs(dev); | |
3531 | ||
6b08f3ae | 3532 | ibmebus_free_irq(adapter->neq->attr.ist1, adapter); |
d4150a27 | 3533 | tasklet_kill(&adapter->neq_tasklet); |
7a291083 JBT |
3534 | |
3535 | ehea_destroy_eq(adapter->neq); | |
1211bb6d | 3536 | ehea_remove_adapter_mr(adapter); |
44c82152 | 3537 | list_del(&adapter->list); |
7a291083 | 3538 | kfree(adapter); |
44c82152 | 3539 | |
21eee2dd | 3540 | ehea_update_firmware_handles(); |
21eee2dd | 3541 | |
7a291083 JBT |
3542 | return 0; |
3543 | } | |
3544 | ||
21eee2dd TK |
3545 | void ehea_crash_handler(void) |
3546 | { | |
3547 | int i; | |
3548 | ||
3549 | if (ehea_fw_handles.arr) | |
3550 | for (i = 0; i < ehea_fw_handles.num_entries; i++) | |
3551 | ehea_h_free_resource(ehea_fw_handles.arr[i].adh, | |
3552 | ehea_fw_handles.arr[i].fwh, | |
3553 | FORCE_FREE); | |
3554 | ||
3555 | if (ehea_bcmc_regs.arr) | |
3556 | for (i = 0; i < ehea_bcmc_regs.num_entries; i++) | |
3557 | ehea_h_reg_dereg_bcmc(ehea_bcmc_regs.arr[i].adh, | |
3558 | ehea_bcmc_regs.arr[i].port_id, | |
3559 | ehea_bcmc_regs.arr[i].reg_type, | |
3560 | ehea_bcmc_regs.arr[i].macaddr, | |
3561 | 0, H_DEREG_BCMC); | |
3562 | } | |
3563 | ||
48cfb14f HH |
3564 | static int ehea_mem_notifier(struct notifier_block *nb, |
3565 | unsigned long action, void *data) | |
3566 | { | |
a7c561f2 | 3567 | int ret = NOTIFY_BAD; |
d4f12daf | 3568 | struct memory_notify *arg = data; |
a7c561f2 | 3569 | |
099473c1 | 3570 | mutex_lock(&dlpar_mem_lock); |
a7c561f2 | 3571 | |
48cfb14f | 3572 | switch (action) { |
d4f12daf | 3573 | case MEM_CANCEL_OFFLINE: |
8c4877a4 | 3574 | pr_info("memory offlining canceled"); |
d4f12daf HH |
3575 | /* Readd canceled memory block */ |
3576 | case MEM_ONLINE: | |
8c4877a4 | 3577 | pr_info("memory is going online"); |
3876732c | 3578 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3579 | if (ehea_add_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3580 | goto out_unlock; |
3d6b892b | 3581 | ehea_rereg_mrs(); |
d4f12daf HH |
3582 | break; |
3583 | case MEM_GOING_OFFLINE: | |
8c4877a4 | 3584 | pr_info("memory is going offline"); |
3876732c | 3585 | set_bit(__EHEA_STOP_XFER, &ehea_driver_flags); |
d4f12daf | 3586 | if (ehea_rem_sect_bmap(arg->start_pfn, arg->nr_pages)) |
a7c561f2 | 3587 | goto out_unlock; |
3d6b892b | 3588 | ehea_rereg_mrs(); |
48cfb14f HH |
3589 | break; |
3590 | default: | |
3591 | break; | |
3592 | } | |
52e21b1b JBT |
3593 | |
3594 | ehea_update_firmware_handles(); | |
a7c561f2 | 3595 | ret = NOTIFY_OK; |
52e21b1b | 3596 | |
a7c561f2 TK |
3597 | out_unlock: |
3598 | mutex_unlock(&dlpar_mem_lock); | |
a7c561f2 | 3599 | return ret; |
48cfb14f HH |
3600 | } |
3601 | ||
3602 | static struct notifier_block ehea_mem_nb = { | |
3603 | .notifier_call = ehea_mem_notifier, | |
3604 | }; | |
3605 | ||
2a6f4e49 JBT |
3606 | static int ehea_reboot_notifier(struct notifier_block *nb, |
3607 | unsigned long action, void *unused) | |
3608 | { | |
3609 | if (action == SYS_RESTART) { | |
8c4877a4 | 3610 | pr_info("Reboot: freeing all eHEA resources\n"); |
2a6f4e49 JBT |
3611 | ibmebus_unregister_driver(&ehea_driver); |
3612 | } | |
3613 | return NOTIFY_DONE; | |
3614 | } | |
3615 | ||
3616 | static struct notifier_block ehea_reboot_nb = { | |
508d2b5d | 3617 | .notifier_call = ehea_reboot_notifier, |
2a6f4e49 JBT |
3618 | }; |
3619 | ||
7a291083 JBT |
3620 | static int check_module_parm(void) |
3621 | { | |
3622 | int ret = 0; | |
3623 | ||
3624 | if ((rq1_entries < EHEA_MIN_ENTRIES_QP) || | |
3625 | (rq1_entries > EHEA_MAX_ENTRIES_RQ1)) { | |
8c4877a4 | 3626 | pr_info("Bad parameter: rq1_entries\n"); |
7a291083 JBT |
3627 | ret = -EINVAL; |
3628 | } | |
3629 | if ((rq2_entries < EHEA_MIN_ENTRIES_QP) || | |
3630 | (rq2_entries > EHEA_MAX_ENTRIES_RQ2)) { | |
8c4877a4 | 3631 | pr_info("Bad parameter: rq2_entries\n"); |
7a291083 JBT |
3632 | ret = -EINVAL; |
3633 | } | |
3634 | if ((rq3_entries < EHEA_MIN_ENTRIES_QP) || | |
3635 | (rq3_entries > EHEA_MAX_ENTRIES_RQ3)) { | |
8c4877a4 | 3636 | pr_info("Bad parameter: rq3_entries\n"); |
7a291083 JBT |
3637 | ret = -EINVAL; |
3638 | } | |
3639 | if ((sq_entries < EHEA_MIN_ENTRIES_QP) || | |
3640 | (sq_entries > EHEA_MAX_ENTRIES_SQ)) { | |
8c4877a4 | 3641 | pr_info("Bad parameter: sq_entries\n"); |
7a291083 JBT |
3642 | ret = -EINVAL; |
3643 | } | |
3644 | ||
3645 | return ret; | |
3646 | } | |
3647 | ||
4c3ca4da JBT |
3648 | static ssize_t ehea_show_capabilities(struct device_driver *drv, |
3649 | char *buf) | |
3650 | { | |
3651 | return sprintf(buf, "%d", EHEA_CAPABILITIES); | |
3652 | } | |
3653 | ||
3654 | static DRIVER_ATTR(capabilities, S_IRUSR | S_IRGRP | S_IROTH, | |
3655 | ehea_show_capabilities, NULL); | |
3656 | ||
7a291083 JBT |
3657 | int __init ehea_module_init(void) |
3658 | { | |
3659 | int ret; | |
3660 | ||
8c4877a4 | 3661 | pr_info("IBM eHEA ethernet device driver (Release %s)\n", DRV_VERSION); |
7a291083 | 3662 | |
21eee2dd TK |
3663 | memset(&ehea_fw_handles, 0, sizeof(ehea_fw_handles)); |
3664 | memset(&ehea_bcmc_regs, 0, sizeof(ehea_bcmc_regs)); | |
3665 | ||
9f71a568 | 3666 | mutex_init(&ehea_fw_handles.lock); |
5c2cec14 | 3667 | spin_lock_init(&ehea_bcmc_regs.lock); |
44c82152 | 3668 | |
7a291083 JBT |
3669 | ret = check_module_parm(); |
3670 | if (ret) | |
3671 | goto out; | |
44c82152 TK |
3672 | |
3673 | ret = ehea_create_busmap(); | |
3674 | if (ret) | |
3675 | goto out; | |
3676 | ||
21eee2dd TK |
3677 | ret = register_reboot_notifier(&ehea_reboot_nb); |
3678 | if (ret) | |
8c4877a4 | 3679 | pr_info("failed registering reboot notifier\n"); |
21eee2dd | 3680 | |
48cfb14f HH |
3681 | ret = register_memory_notifier(&ehea_mem_nb); |
3682 | if (ret) | |
8c4877a4 | 3683 | pr_info("failed registering memory remove notifier\n"); |
48cfb14f | 3684 | |
c061b18d | 3685 | ret = crash_shutdown_register(ehea_crash_handler); |
21eee2dd | 3686 | if (ret) |
8c4877a4 | 3687 | pr_info("failed registering crash handler\n"); |
2a6f4e49 | 3688 | |
7a291083 | 3689 | ret = ibmebus_register_driver(&ehea_driver); |
4c3ca4da | 3690 | if (ret) { |
8c4877a4 | 3691 | pr_err("failed registering eHEA device driver on ebus\n"); |
21eee2dd | 3692 | goto out2; |
4c3ca4da JBT |
3693 | } |
3694 | ||
3695 | ret = driver_create_file(&ehea_driver.driver, | |
3696 | &driver_attr_capabilities); | |
3697 | if (ret) { | |
8c4877a4 JP |
3698 | pr_err("failed to register capabilities attribute, ret=%d\n", |
3699 | ret); | |
21eee2dd | 3700 | goto out3; |
4c3ca4da | 3701 | } |
7a291083 | 3702 | |
21eee2dd TK |
3703 | return ret; |
3704 | ||
3705 | out3: | |
3706 | ibmebus_unregister_driver(&ehea_driver); | |
3707 | out2: | |
48cfb14f | 3708 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd | 3709 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3710 | crash_shutdown_unregister(ehea_crash_handler); |
7a291083 JBT |
3711 | out: |
3712 | return ret; | |
3713 | } | |
3714 | ||
3715 | static void __exit ehea_module_exit(void) | |
3716 | { | |
21eee2dd TK |
3717 | int ret; |
3718 | ||
4c3ca4da | 3719 | driver_remove_file(&ehea_driver.driver, &driver_attr_capabilities); |
7a291083 | 3720 | ibmebus_unregister_driver(&ehea_driver); |
2a6f4e49 | 3721 | unregister_reboot_notifier(&ehea_reboot_nb); |
c061b18d | 3722 | ret = crash_shutdown_unregister(ehea_crash_handler); |
21eee2dd | 3723 | if (ret) |
8c4877a4 | 3724 | pr_info("failed unregistering crash handler\n"); |
48cfb14f | 3725 | unregister_memory_notifier(&ehea_mem_nb); |
21eee2dd TK |
3726 | kfree(ehea_fw_handles.arr); |
3727 | kfree(ehea_bcmc_regs.arr); | |
44c82152 | 3728 | ehea_destroy_busmap(); |
7a291083 JBT |
3729 | } |
3730 | ||
3731 | module_init(ehea_module_init); | |
3732 | module_exit(ehea_module_exit); |