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Merge remote-tracking branch 'spi/topic/rspi' into spi-pdata
[deliverable/linux.git] / drivers / net / ethernet / emulex / benet / be_main.c
1 /*
2 * Copyright (C) 2005 - 2013 Emulex
3 * All rights reserved.
4 *
5 * This program is free software; you can redistribute it and/or
6 * modify it under the terms of the GNU General Public License version 2
7 * as published by the Free Software Foundation. The full GNU General
8 * Public License is included in this distribution in the file called COPYING.
9 *
10 * Contact Information:
11 * linux-drivers@emulex.com
12 *
13 * Emulex
14 * 3333 Susan Street
15 * Costa Mesa, CA 92626
16 */
17
18 #include <linux/prefetch.h>
19 #include <linux/module.h>
20 #include "be.h"
21 #include "be_cmds.h"
22 #include <asm/div64.h>
23 #include <linux/aer.h>
24
25 MODULE_VERSION(DRV_VER);
26 MODULE_DEVICE_TABLE(pci, be_dev_ids);
27 MODULE_DESCRIPTION(DRV_DESC " " DRV_VER);
28 MODULE_AUTHOR("Emulex Corporation");
29 MODULE_LICENSE("GPL");
30
31 static unsigned int num_vfs;
32 module_param(num_vfs, uint, S_IRUGO);
33 MODULE_PARM_DESC(num_vfs, "Number of PCI VFs to initialize");
34
35 static ushort rx_frag_size = 2048;
36 module_param(rx_frag_size, ushort, S_IRUGO);
37 MODULE_PARM_DESC(rx_frag_size, "Size of a fragment that holds rcvd data.");
38
39 static DEFINE_PCI_DEVICE_TABLE(be_dev_ids) = {
40 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID1) },
41 { PCI_DEVICE(BE_VENDOR_ID, BE_DEVICE_ID2) },
42 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID1) },
43 { PCI_DEVICE(BE_VENDOR_ID, OC_DEVICE_ID2) },
44 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID3)},
45 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID4)},
46 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID5)},
47 { PCI_DEVICE(EMULEX_VENDOR_ID, OC_DEVICE_ID6)},
48 { 0 }
49 };
50 MODULE_DEVICE_TABLE(pci, be_dev_ids);
51 /* UE Status Low CSR */
52 static const char * const ue_status_low_desc[] = {
53 "CEV",
54 "CTX",
55 "DBUF",
56 "ERX",
57 "Host",
58 "MPU",
59 "NDMA",
60 "PTC ",
61 "RDMA ",
62 "RXF ",
63 "RXIPS ",
64 "RXULP0 ",
65 "RXULP1 ",
66 "RXULP2 ",
67 "TIM ",
68 "TPOST ",
69 "TPRE ",
70 "TXIPS ",
71 "TXULP0 ",
72 "TXULP1 ",
73 "UC ",
74 "WDMA ",
75 "TXULP2 ",
76 "HOST1 ",
77 "P0_OB_LINK ",
78 "P1_OB_LINK ",
79 "HOST_GPIO ",
80 "MBOX ",
81 "AXGMAC0",
82 "AXGMAC1",
83 "JTAG",
84 "MPU_INTPEND"
85 };
86 /* UE Status High CSR */
87 static const char * const ue_status_hi_desc[] = {
88 "LPCMEMHOST",
89 "MGMT_MAC",
90 "PCS0ONLINE",
91 "MPU_IRAM",
92 "PCS1ONLINE",
93 "PCTL0",
94 "PCTL1",
95 "PMEM",
96 "RR",
97 "TXPB",
98 "RXPP",
99 "XAUI",
100 "TXP",
101 "ARM",
102 "IPC",
103 "HOST2",
104 "HOST3",
105 "HOST4",
106 "HOST5",
107 "HOST6",
108 "HOST7",
109 "HOST8",
110 "HOST9",
111 "NETC",
112 "Unknown",
113 "Unknown",
114 "Unknown",
115 "Unknown",
116 "Unknown",
117 "Unknown",
118 "Unknown",
119 "Unknown"
120 };
121
122 /* Is BE in a multi-channel mode */
123 static inline bool be_is_mc(struct be_adapter *adapter) {
124 return (adapter->function_mode & FLEX10_MODE ||
125 adapter->function_mode & VNIC_MODE ||
126 adapter->function_mode & UMC_ENABLED);
127 }
128
129 static void be_queue_free(struct be_adapter *adapter, struct be_queue_info *q)
130 {
131 struct be_dma_mem *mem = &q->dma_mem;
132 if (mem->va) {
133 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
134 mem->dma);
135 mem->va = NULL;
136 }
137 }
138
139 static int be_queue_alloc(struct be_adapter *adapter, struct be_queue_info *q,
140 u16 len, u16 entry_size)
141 {
142 struct be_dma_mem *mem = &q->dma_mem;
143
144 memset(q, 0, sizeof(*q));
145 q->len = len;
146 q->entry_size = entry_size;
147 mem->size = len * entry_size;
148 mem->va = dma_alloc_coherent(&adapter->pdev->dev, mem->size, &mem->dma,
149 GFP_KERNEL | __GFP_ZERO);
150 if (!mem->va)
151 return -ENOMEM;
152 return 0;
153 }
154
155 static void be_reg_intr_set(struct be_adapter *adapter, bool enable)
156 {
157 u32 reg, enabled;
158
159 pci_read_config_dword(adapter->pdev, PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET,
160 &reg);
161 enabled = reg & MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
162
163 if (!enabled && enable)
164 reg |= MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
165 else if (enabled && !enable)
166 reg &= ~MEMBAR_CTRL_INT_CTRL_HOSTINTR_MASK;
167 else
168 return;
169
170 pci_write_config_dword(adapter->pdev,
171 PCICFG_MEMBAR_CTRL_INT_CTRL_OFFSET, reg);
172 }
173
174 static void be_intr_set(struct be_adapter *adapter, bool enable)
175 {
176 int status = 0;
177
178 /* On lancer interrupts can't be controlled via this register */
179 if (lancer_chip(adapter))
180 return;
181
182 if (adapter->eeh_error)
183 return;
184
185 status = be_cmd_intr_set(adapter, enable);
186 if (status)
187 be_reg_intr_set(adapter, enable);
188 }
189
190 static void be_rxq_notify(struct be_adapter *adapter, u16 qid, u16 posted)
191 {
192 u32 val = 0;
193 val |= qid & DB_RQ_RING_ID_MASK;
194 val |= posted << DB_RQ_NUM_POSTED_SHIFT;
195
196 wmb();
197 iowrite32(val, adapter->db + DB_RQ_OFFSET);
198 }
199
200 static void be_txq_notify(struct be_adapter *adapter, struct be_tx_obj *txo,
201 u16 posted)
202 {
203 u32 val = 0;
204 val |= txo->q.id & DB_TXULP_RING_ID_MASK;
205 val |= (posted & DB_TXULP_NUM_POSTED_MASK) << DB_TXULP_NUM_POSTED_SHIFT;
206
207 wmb();
208 iowrite32(val, adapter->db + txo->db_offset);
209 }
210
211 static void be_eq_notify(struct be_adapter *adapter, u16 qid,
212 bool arm, bool clear_int, u16 num_popped)
213 {
214 u32 val = 0;
215 val |= qid & DB_EQ_RING_ID_MASK;
216 val |= ((qid & DB_EQ_RING_ID_EXT_MASK) <<
217 DB_EQ_RING_ID_EXT_MASK_SHIFT);
218
219 if (adapter->eeh_error)
220 return;
221
222 if (arm)
223 val |= 1 << DB_EQ_REARM_SHIFT;
224 if (clear_int)
225 val |= 1 << DB_EQ_CLR_SHIFT;
226 val |= 1 << DB_EQ_EVNT_SHIFT;
227 val |= num_popped << DB_EQ_NUM_POPPED_SHIFT;
228 iowrite32(val, adapter->db + DB_EQ_OFFSET);
229 }
230
231 void be_cq_notify(struct be_adapter *adapter, u16 qid, bool arm, u16 num_popped)
232 {
233 u32 val = 0;
234 val |= qid & DB_CQ_RING_ID_MASK;
235 val |= ((qid & DB_CQ_RING_ID_EXT_MASK) <<
236 DB_CQ_RING_ID_EXT_MASK_SHIFT);
237
238 if (adapter->eeh_error)
239 return;
240
241 if (arm)
242 val |= 1 << DB_CQ_REARM_SHIFT;
243 val |= num_popped << DB_CQ_NUM_POPPED_SHIFT;
244 iowrite32(val, adapter->db + DB_CQ_OFFSET);
245 }
246
247 static int be_mac_addr_set(struct net_device *netdev, void *p)
248 {
249 struct be_adapter *adapter = netdev_priv(netdev);
250 struct sockaddr *addr = p;
251 int status = 0;
252 u8 current_mac[ETH_ALEN];
253 u32 pmac_id = adapter->pmac_id[0];
254 bool active_mac = true;
255
256 if (!is_valid_ether_addr(addr->sa_data))
257 return -EADDRNOTAVAIL;
258
259 /* For BE VF, MAC address is already activated by PF.
260 * Hence only operation left is updating netdev->devaddr.
261 * Update it if user is passing the same MAC which was used
262 * during configuring VF MAC from PF(Hypervisor).
263 */
264 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
265 status = be_cmd_mac_addr_query(adapter, current_mac,
266 false, adapter->if_handle, 0);
267 if (!status && !memcmp(current_mac, addr->sa_data, ETH_ALEN))
268 goto done;
269 else
270 goto err;
271 }
272
273 if (!memcmp(addr->sa_data, netdev->dev_addr, ETH_ALEN))
274 goto done;
275
276 /* For Lancer check if any MAC is active.
277 * If active, get its mac id.
278 */
279 if (lancer_chip(adapter) && !be_physfn(adapter))
280 be_cmd_get_mac_from_list(adapter, current_mac, &active_mac,
281 &pmac_id, 0);
282
283 status = be_cmd_pmac_add(adapter, (u8 *)addr->sa_data,
284 adapter->if_handle,
285 &adapter->pmac_id[0], 0);
286
287 if (status)
288 goto err;
289
290 if (active_mac)
291 be_cmd_pmac_del(adapter, adapter->if_handle,
292 pmac_id, 0);
293 done:
294 memcpy(netdev->dev_addr, addr->sa_data, netdev->addr_len);
295 return 0;
296 err:
297 dev_err(&adapter->pdev->dev, "MAC %pM set Failed\n", addr->sa_data);
298 return status;
299 }
300
301 /* BE2 supports only v0 cmd */
302 static void *hw_stats_from_cmd(struct be_adapter *adapter)
303 {
304 if (BE2_chip(adapter)) {
305 struct be_cmd_resp_get_stats_v0 *cmd = adapter->stats_cmd.va;
306
307 return &cmd->hw_stats;
308 } else {
309 struct be_cmd_resp_get_stats_v1 *cmd = adapter->stats_cmd.va;
310
311 return &cmd->hw_stats;
312 }
313 }
314
315 /* BE2 supports only v0 cmd */
316 static void *be_erx_stats_from_cmd(struct be_adapter *adapter)
317 {
318 if (BE2_chip(adapter)) {
319 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
320
321 return &hw_stats->erx;
322 } else {
323 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
324
325 return &hw_stats->erx;
326 }
327 }
328
329 static void populate_be_v0_stats(struct be_adapter *adapter)
330 {
331 struct be_hw_stats_v0 *hw_stats = hw_stats_from_cmd(adapter);
332 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
333 struct be_rxf_stats_v0 *rxf_stats = &hw_stats->rxf;
334 struct be_port_rxf_stats_v0 *port_stats =
335 &rxf_stats->port[adapter->port_num];
336 struct be_drv_stats *drvs = &adapter->drv_stats;
337
338 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
339 drvs->rx_pause_frames = port_stats->rx_pause_frames;
340 drvs->rx_crc_errors = port_stats->rx_crc_errors;
341 drvs->rx_control_frames = port_stats->rx_control_frames;
342 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
343 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
344 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
345 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
346 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
347 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
348 drvs->rxpp_fifo_overflow_drop = port_stats->rx_fifo_overflow;
349 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
350 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
351 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
352 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
353 drvs->rx_input_fifo_overflow_drop = port_stats->rx_input_fifo_overflow;
354 drvs->rx_dropped_header_too_small =
355 port_stats->rx_dropped_header_too_small;
356 drvs->rx_address_filtered =
357 port_stats->rx_address_filtered +
358 port_stats->rx_vlan_filtered;
359 drvs->rx_alignment_symbol_errors =
360 port_stats->rx_alignment_symbol_errors;
361
362 drvs->tx_pauseframes = port_stats->tx_pauseframes;
363 drvs->tx_controlframes = port_stats->tx_controlframes;
364
365 if (adapter->port_num)
366 drvs->jabber_events = rxf_stats->port1_jabber_events;
367 else
368 drvs->jabber_events = rxf_stats->port0_jabber_events;
369 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
370 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
371 drvs->forwarded_packets = rxf_stats->forwarded_packets;
372 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
373 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
374 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
375 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
376 }
377
378 static void populate_be_v1_stats(struct be_adapter *adapter)
379 {
380 struct be_hw_stats_v1 *hw_stats = hw_stats_from_cmd(adapter);
381 struct be_pmem_stats *pmem_sts = &hw_stats->pmem;
382 struct be_rxf_stats_v1 *rxf_stats = &hw_stats->rxf;
383 struct be_port_rxf_stats_v1 *port_stats =
384 &rxf_stats->port[adapter->port_num];
385 struct be_drv_stats *drvs = &adapter->drv_stats;
386
387 be_dws_le_to_cpu(hw_stats, sizeof(*hw_stats));
388 drvs->pmem_fifo_overflow_drop = port_stats->pmem_fifo_overflow_drop;
389 drvs->rx_priority_pause_frames = port_stats->rx_priority_pause_frames;
390 drvs->rx_pause_frames = port_stats->rx_pause_frames;
391 drvs->rx_crc_errors = port_stats->rx_crc_errors;
392 drvs->rx_control_frames = port_stats->rx_control_frames;
393 drvs->rx_in_range_errors = port_stats->rx_in_range_errors;
394 drvs->rx_frame_too_long = port_stats->rx_frame_too_long;
395 drvs->rx_dropped_runt = port_stats->rx_dropped_runt;
396 drvs->rx_ip_checksum_errs = port_stats->rx_ip_checksum_errs;
397 drvs->rx_tcp_checksum_errs = port_stats->rx_tcp_checksum_errs;
398 drvs->rx_udp_checksum_errs = port_stats->rx_udp_checksum_errs;
399 drvs->rx_dropped_tcp_length = port_stats->rx_dropped_tcp_length;
400 drvs->rx_dropped_too_small = port_stats->rx_dropped_too_small;
401 drvs->rx_dropped_too_short = port_stats->rx_dropped_too_short;
402 drvs->rx_out_range_errors = port_stats->rx_out_range_errors;
403 drvs->rx_dropped_header_too_small =
404 port_stats->rx_dropped_header_too_small;
405 drvs->rx_input_fifo_overflow_drop =
406 port_stats->rx_input_fifo_overflow_drop;
407 drvs->rx_address_filtered = port_stats->rx_address_filtered;
408 drvs->rx_alignment_symbol_errors =
409 port_stats->rx_alignment_symbol_errors;
410 drvs->rxpp_fifo_overflow_drop = port_stats->rxpp_fifo_overflow_drop;
411 drvs->tx_pauseframes = port_stats->tx_pauseframes;
412 drvs->tx_controlframes = port_stats->tx_controlframes;
413 drvs->tx_priority_pauseframes = port_stats->tx_priority_pauseframes;
414 drvs->jabber_events = port_stats->jabber_events;
415 drvs->rx_drops_no_pbuf = rxf_stats->rx_drops_no_pbuf;
416 drvs->rx_drops_no_erx_descr = rxf_stats->rx_drops_no_erx_descr;
417 drvs->forwarded_packets = rxf_stats->forwarded_packets;
418 drvs->rx_drops_mtu = rxf_stats->rx_drops_mtu;
419 drvs->rx_drops_no_tpre_descr = rxf_stats->rx_drops_no_tpre_descr;
420 drvs->rx_drops_too_many_frags = rxf_stats->rx_drops_too_many_frags;
421 adapter->drv_stats.eth_red_drops = pmem_sts->eth_red_drops;
422 }
423
424 static void populate_lancer_stats(struct be_adapter *adapter)
425 {
426
427 struct be_drv_stats *drvs = &adapter->drv_stats;
428 struct lancer_pport_stats *pport_stats =
429 pport_stats_from_cmd(adapter);
430
431 be_dws_le_to_cpu(pport_stats, sizeof(*pport_stats));
432 drvs->rx_pause_frames = pport_stats->rx_pause_frames_lo;
433 drvs->rx_crc_errors = pport_stats->rx_crc_errors_lo;
434 drvs->rx_control_frames = pport_stats->rx_control_frames_lo;
435 drvs->rx_in_range_errors = pport_stats->rx_in_range_errors;
436 drvs->rx_frame_too_long = pport_stats->rx_frames_too_long_lo;
437 drvs->rx_dropped_runt = pport_stats->rx_dropped_runt;
438 drvs->rx_ip_checksum_errs = pport_stats->rx_ip_checksum_errors;
439 drvs->rx_tcp_checksum_errs = pport_stats->rx_tcp_checksum_errors;
440 drvs->rx_udp_checksum_errs = pport_stats->rx_udp_checksum_errors;
441 drvs->rx_dropped_tcp_length =
442 pport_stats->rx_dropped_invalid_tcp_length;
443 drvs->rx_dropped_too_small = pport_stats->rx_dropped_too_small;
444 drvs->rx_dropped_too_short = pport_stats->rx_dropped_too_short;
445 drvs->rx_out_range_errors = pport_stats->rx_out_of_range_errors;
446 drvs->rx_dropped_header_too_small =
447 pport_stats->rx_dropped_header_too_small;
448 drvs->rx_input_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
449 drvs->rx_address_filtered =
450 pport_stats->rx_address_filtered +
451 pport_stats->rx_vlan_filtered;
452 drvs->rx_alignment_symbol_errors = pport_stats->rx_symbol_errors_lo;
453 drvs->rxpp_fifo_overflow_drop = pport_stats->rx_fifo_overflow;
454 drvs->tx_pauseframes = pport_stats->tx_pause_frames_lo;
455 drvs->tx_controlframes = pport_stats->tx_control_frames_lo;
456 drvs->jabber_events = pport_stats->rx_jabbers;
457 drvs->forwarded_packets = pport_stats->num_forwards_lo;
458 drvs->rx_drops_mtu = pport_stats->rx_drops_mtu_lo;
459 drvs->rx_drops_too_many_frags =
460 pport_stats->rx_drops_too_many_frags_lo;
461 }
462
463 static void accumulate_16bit_val(u32 *acc, u16 val)
464 {
465 #define lo(x) (x & 0xFFFF)
466 #define hi(x) (x & 0xFFFF0000)
467 bool wrapped = val < lo(*acc);
468 u32 newacc = hi(*acc) + val;
469
470 if (wrapped)
471 newacc += 65536;
472 ACCESS_ONCE(*acc) = newacc;
473 }
474
475 void populate_erx_stats(struct be_adapter *adapter,
476 struct be_rx_obj *rxo,
477 u32 erx_stat)
478 {
479 if (!BEx_chip(adapter))
480 rx_stats(rxo)->rx_drops_no_frags = erx_stat;
481 else
482 /* below erx HW counter can actually wrap around after
483 * 65535. Driver accumulates a 32-bit value
484 */
485 accumulate_16bit_val(&rx_stats(rxo)->rx_drops_no_frags,
486 (u16)erx_stat);
487 }
488
489 void be_parse_stats(struct be_adapter *adapter)
490 {
491 struct be_erx_stats_v1 *erx = be_erx_stats_from_cmd(adapter);
492 struct be_rx_obj *rxo;
493 int i;
494 u32 erx_stat;
495
496 if (lancer_chip(adapter)) {
497 populate_lancer_stats(adapter);
498 } else {
499 if (BE2_chip(adapter))
500 populate_be_v0_stats(adapter);
501 else
502 /* for BE3 and Skyhawk */
503 populate_be_v1_stats(adapter);
504
505 /* as erx_v1 is longer than v0, ok to use v1 for v0 access */
506 for_all_rx_queues(adapter, rxo, i) {
507 erx_stat = erx->rx_drops_no_fragments[rxo->q.id];
508 populate_erx_stats(adapter, rxo, erx_stat);
509 }
510 }
511 }
512
513 static struct rtnl_link_stats64 *be_get_stats64(struct net_device *netdev,
514 struct rtnl_link_stats64 *stats)
515 {
516 struct be_adapter *adapter = netdev_priv(netdev);
517 struct be_drv_stats *drvs = &adapter->drv_stats;
518 struct be_rx_obj *rxo;
519 struct be_tx_obj *txo;
520 u64 pkts, bytes;
521 unsigned int start;
522 int i;
523
524 for_all_rx_queues(adapter, rxo, i) {
525 const struct be_rx_stats *rx_stats = rx_stats(rxo);
526 do {
527 start = u64_stats_fetch_begin_bh(&rx_stats->sync);
528 pkts = rx_stats(rxo)->rx_pkts;
529 bytes = rx_stats(rxo)->rx_bytes;
530 } while (u64_stats_fetch_retry_bh(&rx_stats->sync, start));
531 stats->rx_packets += pkts;
532 stats->rx_bytes += bytes;
533 stats->multicast += rx_stats(rxo)->rx_mcast_pkts;
534 stats->rx_dropped += rx_stats(rxo)->rx_drops_no_skbs +
535 rx_stats(rxo)->rx_drops_no_frags;
536 }
537
538 for_all_tx_queues(adapter, txo, i) {
539 const struct be_tx_stats *tx_stats = tx_stats(txo);
540 do {
541 start = u64_stats_fetch_begin_bh(&tx_stats->sync);
542 pkts = tx_stats(txo)->tx_pkts;
543 bytes = tx_stats(txo)->tx_bytes;
544 } while (u64_stats_fetch_retry_bh(&tx_stats->sync, start));
545 stats->tx_packets += pkts;
546 stats->tx_bytes += bytes;
547 }
548
549 /* bad pkts received */
550 stats->rx_errors = drvs->rx_crc_errors +
551 drvs->rx_alignment_symbol_errors +
552 drvs->rx_in_range_errors +
553 drvs->rx_out_range_errors +
554 drvs->rx_frame_too_long +
555 drvs->rx_dropped_too_small +
556 drvs->rx_dropped_too_short +
557 drvs->rx_dropped_header_too_small +
558 drvs->rx_dropped_tcp_length +
559 drvs->rx_dropped_runt;
560
561 /* detailed rx errors */
562 stats->rx_length_errors = drvs->rx_in_range_errors +
563 drvs->rx_out_range_errors +
564 drvs->rx_frame_too_long;
565
566 stats->rx_crc_errors = drvs->rx_crc_errors;
567
568 /* frame alignment errors */
569 stats->rx_frame_errors = drvs->rx_alignment_symbol_errors;
570
571 /* receiver fifo overrun */
572 /* drops_no_pbuf is no per i/f, it's per BE card */
573 stats->rx_fifo_errors = drvs->rxpp_fifo_overflow_drop +
574 drvs->rx_input_fifo_overflow_drop +
575 drvs->rx_drops_no_pbuf;
576 return stats;
577 }
578
579 void be_link_status_update(struct be_adapter *adapter, u8 link_status)
580 {
581 struct net_device *netdev = adapter->netdev;
582
583 if (!(adapter->flags & BE_FLAGS_LINK_STATUS_INIT)) {
584 netif_carrier_off(netdev);
585 adapter->flags |= BE_FLAGS_LINK_STATUS_INIT;
586 }
587
588 if ((link_status & LINK_STATUS_MASK) == LINK_UP)
589 netif_carrier_on(netdev);
590 else
591 netif_carrier_off(netdev);
592 }
593
594 static void be_tx_stats_update(struct be_tx_obj *txo,
595 u32 wrb_cnt, u32 copied, u32 gso_segs, bool stopped)
596 {
597 struct be_tx_stats *stats = tx_stats(txo);
598
599 u64_stats_update_begin(&stats->sync);
600 stats->tx_reqs++;
601 stats->tx_wrbs += wrb_cnt;
602 stats->tx_bytes += copied;
603 stats->tx_pkts += (gso_segs ? gso_segs : 1);
604 if (stopped)
605 stats->tx_stops++;
606 u64_stats_update_end(&stats->sync);
607 }
608
609 /* Determine number of WRB entries needed to xmit data in an skb */
610 static u32 wrb_cnt_for_skb(struct be_adapter *adapter, struct sk_buff *skb,
611 bool *dummy)
612 {
613 int cnt = (skb->len > skb->data_len);
614
615 cnt += skb_shinfo(skb)->nr_frags;
616
617 /* to account for hdr wrb */
618 cnt++;
619 if (lancer_chip(adapter) || !(cnt & 1)) {
620 *dummy = false;
621 } else {
622 /* add a dummy to make it an even num */
623 cnt++;
624 *dummy = true;
625 }
626 BUG_ON(cnt > BE_MAX_TX_FRAG_COUNT);
627 return cnt;
628 }
629
630 static inline void wrb_fill(struct be_eth_wrb *wrb, u64 addr, int len)
631 {
632 wrb->frag_pa_hi = upper_32_bits(addr);
633 wrb->frag_pa_lo = addr & 0xFFFFFFFF;
634 wrb->frag_len = len & ETH_WRB_FRAG_LEN_MASK;
635 wrb->rsvd0 = 0;
636 }
637
638 static inline u16 be_get_tx_vlan_tag(struct be_adapter *adapter,
639 struct sk_buff *skb)
640 {
641 u8 vlan_prio;
642 u16 vlan_tag;
643
644 vlan_tag = vlan_tx_tag_get(skb);
645 vlan_prio = (vlan_tag & VLAN_PRIO_MASK) >> VLAN_PRIO_SHIFT;
646 /* If vlan priority provided by OS is NOT in available bmap */
647 if (!(adapter->vlan_prio_bmap & (1 << vlan_prio)))
648 vlan_tag = (vlan_tag & ~VLAN_PRIO_MASK) |
649 adapter->recommended_prio;
650
651 return vlan_tag;
652 }
653
654 static void wrb_fill_hdr(struct be_adapter *adapter, struct be_eth_hdr_wrb *hdr,
655 struct sk_buff *skb, u32 wrb_cnt, u32 len, bool skip_hw_vlan)
656 {
657 u16 vlan_tag;
658
659 memset(hdr, 0, sizeof(*hdr));
660
661 AMAP_SET_BITS(struct amap_eth_hdr_wrb, crc, hdr, 1);
662
663 if (skb_is_gso(skb)) {
664 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso, hdr, 1);
665 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso_mss,
666 hdr, skb_shinfo(skb)->gso_size);
667 if (skb_is_gso_v6(skb) && !lancer_chip(adapter))
668 AMAP_SET_BITS(struct amap_eth_hdr_wrb, lso6, hdr, 1);
669 } else if (skb->ip_summed == CHECKSUM_PARTIAL) {
670 if (is_tcp_pkt(skb))
671 AMAP_SET_BITS(struct amap_eth_hdr_wrb, tcpcs, hdr, 1);
672 else if (is_udp_pkt(skb))
673 AMAP_SET_BITS(struct amap_eth_hdr_wrb, udpcs, hdr, 1);
674 }
675
676 if (vlan_tx_tag_present(skb)) {
677 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan, hdr, 1);
678 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
679 AMAP_SET_BITS(struct amap_eth_hdr_wrb, vlan_tag, hdr, vlan_tag);
680 }
681
682 /* To skip HW VLAN tagging: evt = 1, compl = 0 */
683 AMAP_SET_BITS(struct amap_eth_hdr_wrb, complete, hdr, !skip_hw_vlan);
684 AMAP_SET_BITS(struct amap_eth_hdr_wrb, event, hdr, 1);
685 AMAP_SET_BITS(struct amap_eth_hdr_wrb, num_wrb, hdr, wrb_cnt);
686 AMAP_SET_BITS(struct amap_eth_hdr_wrb, len, hdr, len);
687 }
688
689 static void unmap_tx_frag(struct device *dev, struct be_eth_wrb *wrb,
690 bool unmap_single)
691 {
692 dma_addr_t dma;
693
694 be_dws_le_to_cpu(wrb, sizeof(*wrb));
695
696 dma = (u64)wrb->frag_pa_hi << 32 | (u64)wrb->frag_pa_lo;
697 if (wrb->frag_len) {
698 if (unmap_single)
699 dma_unmap_single(dev, dma, wrb->frag_len,
700 DMA_TO_DEVICE);
701 else
702 dma_unmap_page(dev, dma, wrb->frag_len, DMA_TO_DEVICE);
703 }
704 }
705
706 static int make_tx_wrbs(struct be_adapter *adapter, struct be_queue_info *txq,
707 struct sk_buff *skb, u32 wrb_cnt, bool dummy_wrb,
708 bool skip_hw_vlan)
709 {
710 dma_addr_t busaddr;
711 int i, copied = 0;
712 struct device *dev = &adapter->pdev->dev;
713 struct sk_buff *first_skb = skb;
714 struct be_eth_wrb *wrb;
715 struct be_eth_hdr_wrb *hdr;
716 bool map_single = false;
717 u16 map_head;
718
719 hdr = queue_head_node(txq);
720 queue_head_inc(txq);
721 map_head = txq->head;
722
723 if (skb->len > skb->data_len) {
724 int len = skb_headlen(skb);
725 busaddr = dma_map_single(dev, skb->data, len, DMA_TO_DEVICE);
726 if (dma_mapping_error(dev, busaddr))
727 goto dma_err;
728 map_single = true;
729 wrb = queue_head_node(txq);
730 wrb_fill(wrb, busaddr, len);
731 be_dws_cpu_to_le(wrb, sizeof(*wrb));
732 queue_head_inc(txq);
733 copied += len;
734 }
735
736 for (i = 0; i < skb_shinfo(skb)->nr_frags; i++) {
737 const struct skb_frag_struct *frag =
738 &skb_shinfo(skb)->frags[i];
739 busaddr = skb_frag_dma_map(dev, frag, 0,
740 skb_frag_size(frag), DMA_TO_DEVICE);
741 if (dma_mapping_error(dev, busaddr))
742 goto dma_err;
743 wrb = queue_head_node(txq);
744 wrb_fill(wrb, busaddr, skb_frag_size(frag));
745 be_dws_cpu_to_le(wrb, sizeof(*wrb));
746 queue_head_inc(txq);
747 copied += skb_frag_size(frag);
748 }
749
750 if (dummy_wrb) {
751 wrb = queue_head_node(txq);
752 wrb_fill(wrb, 0, 0);
753 be_dws_cpu_to_le(wrb, sizeof(*wrb));
754 queue_head_inc(txq);
755 }
756
757 wrb_fill_hdr(adapter, hdr, first_skb, wrb_cnt, copied, skip_hw_vlan);
758 be_dws_cpu_to_le(hdr, sizeof(*hdr));
759
760 return copied;
761 dma_err:
762 txq->head = map_head;
763 while (copied) {
764 wrb = queue_head_node(txq);
765 unmap_tx_frag(dev, wrb, map_single);
766 map_single = false;
767 copied -= wrb->frag_len;
768 queue_head_inc(txq);
769 }
770 return 0;
771 }
772
773 static struct sk_buff *be_insert_vlan_in_pkt(struct be_adapter *adapter,
774 struct sk_buff *skb,
775 bool *skip_hw_vlan)
776 {
777 u16 vlan_tag = 0;
778
779 skb = skb_share_check(skb, GFP_ATOMIC);
780 if (unlikely(!skb))
781 return skb;
782
783 if (vlan_tx_tag_present(skb))
784 vlan_tag = be_get_tx_vlan_tag(adapter, skb);
785
786 if (qnq_async_evt_rcvd(adapter) && adapter->pvid) {
787 if (!vlan_tag)
788 vlan_tag = adapter->pvid;
789 /* f/w workaround to set skip_hw_vlan = 1, informs the F/W to
790 * skip VLAN insertion
791 */
792 if (skip_hw_vlan)
793 *skip_hw_vlan = true;
794 }
795
796 if (vlan_tag) {
797 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
798 if (unlikely(!skb))
799 return skb;
800 skb->vlan_tci = 0;
801 }
802
803 /* Insert the outer VLAN, if any */
804 if (adapter->qnq_vid) {
805 vlan_tag = adapter->qnq_vid;
806 skb = __vlan_put_tag(skb, htons(ETH_P_8021Q), vlan_tag);
807 if (unlikely(!skb))
808 return skb;
809 if (skip_hw_vlan)
810 *skip_hw_vlan = true;
811 }
812
813 return skb;
814 }
815
816 static bool be_ipv6_exthdr_check(struct sk_buff *skb)
817 {
818 struct ethhdr *eh = (struct ethhdr *)skb->data;
819 u16 offset = ETH_HLEN;
820
821 if (eh->h_proto == htons(ETH_P_IPV6)) {
822 struct ipv6hdr *ip6h = (struct ipv6hdr *)(skb->data + offset);
823
824 offset += sizeof(struct ipv6hdr);
825 if (ip6h->nexthdr != NEXTHDR_TCP &&
826 ip6h->nexthdr != NEXTHDR_UDP) {
827 struct ipv6_opt_hdr *ehdr =
828 (struct ipv6_opt_hdr *) (skb->data + offset);
829
830 /* offending pkt: 2nd byte following IPv6 hdr is 0xff */
831 if (ehdr->hdrlen == 0xff)
832 return true;
833 }
834 }
835 return false;
836 }
837
838 static int be_vlan_tag_tx_chk(struct be_adapter *adapter, struct sk_buff *skb)
839 {
840 return vlan_tx_tag_present(skb) || adapter->pvid || adapter->qnq_vid;
841 }
842
843 static int be_ipv6_tx_stall_chk(struct be_adapter *adapter,
844 struct sk_buff *skb)
845 {
846 return BE3_chip(adapter) && be_ipv6_exthdr_check(skb);
847 }
848
849 static struct sk_buff *be_xmit_workarounds(struct be_adapter *adapter,
850 struct sk_buff *skb,
851 bool *skip_hw_vlan)
852 {
853 struct vlan_ethhdr *veh = (struct vlan_ethhdr *)skb->data;
854 unsigned int eth_hdr_len;
855 struct iphdr *ip;
856
857 /* Lancer ASIC has a bug wherein packets that are 32 bytes or less
858 * may cause a transmit stall on that port. So the work-around is to
859 * pad such packets to a 36-byte length.
860 */
861 if (unlikely(lancer_chip(adapter) && skb->len <= 32)) {
862 if (skb_padto(skb, 36))
863 goto tx_drop;
864 skb->len = 36;
865 }
866
867 /* For padded packets, BE HW modifies tot_len field in IP header
868 * incorrecly when VLAN tag is inserted by HW.
869 * For padded packets, Lancer computes incorrect checksum.
870 */
871 eth_hdr_len = ntohs(skb->protocol) == ETH_P_8021Q ?
872 VLAN_ETH_HLEN : ETH_HLEN;
873 if (skb->len <= 60 &&
874 (lancer_chip(adapter) || vlan_tx_tag_present(skb)) &&
875 is_ipv4_pkt(skb)) {
876 ip = (struct iphdr *)ip_hdr(skb);
877 pskb_trim(skb, eth_hdr_len + ntohs(ip->tot_len));
878 }
879
880 /* If vlan tag is already inlined in the packet, skip HW VLAN
881 * tagging in UMC mode
882 */
883 if ((adapter->function_mode & UMC_ENABLED) &&
884 veh->h_vlan_proto == htons(ETH_P_8021Q))
885 *skip_hw_vlan = true;
886
887 /* HW has a bug wherein it will calculate CSUM for VLAN
888 * pkts even though it is disabled.
889 * Manually insert VLAN in pkt.
890 */
891 if (skb->ip_summed != CHECKSUM_PARTIAL &&
892 vlan_tx_tag_present(skb)) {
893 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
894 if (unlikely(!skb))
895 goto tx_drop;
896 }
897
898 /* HW may lockup when VLAN HW tagging is requested on
899 * certain ipv6 packets. Drop such pkts if the HW workaround to
900 * skip HW tagging is not enabled by FW.
901 */
902 if (unlikely(be_ipv6_tx_stall_chk(adapter, skb) &&
903 (adapter->pvid || adapter->qnq_vid) &&
904 !qnq_async_evt_rcvd(adapter)))
905 goto tx_drop;
906
907 /* Manual VLAN tag insertion to prevent:
908 * ASIC lockup when the ASIC inserts VLAN tag into
909 * certain ipv6 packets. Insert VLAN tags in driver,
910 * and set event, completion, vlan bits accordingly
911 * in the Tx WRB.
912 */
913 if (be_ipv6_tx_stall_chk(adapter, skb) &&
914 be_vlan_tag_tx_chk(adapter, skb)) {
915 skb = be_insert_vlan_in_pkt(adapter, skb, skip_hw_vlan);
916 if (unlikely(!skb))
917 goto tx_drop;
918 }
919
920 return skb;
921 tx_drop:
922 dev_kfree_skb_any(skb);
923 return NULL;
924 }
925
926 static netdev_tx_t be_xmit(struct sk_buff *skb, struct net_device *netdev)
927 {
928 struct be_adapter *adapter = netdev_priv(netdev);
929 struct be_tx_obj *txo = &adapter->tx_obj[skb_get_queue_mapping(skb)];
930 struct be_queue_info *txq = &txo->q;
931 bool dummy_wrb, stopped = false;
932 u32 wrb_cnt = 0, copied = 0;
933 bool skip_hw_vlan = false;
934 u32 start = txq->head;
935
936 skb = be_xmit_workarounds(adapter, skb, &skip_hw_vlan);
937 if (!skb)
938 return NETDEV_TX_OK;
939
940 wrb_cnt = wrb_cnt_for_skb(adapter, skb, &dummy_wrb);
941
942 copied = make_tx_wrbs(adapter, txq, skb, wrb_cnt, dummy_wrb,
943 skip_hw_vlan);
944 if (copied) {
945 int gso_segs = skb_shinfo(skb)->gso_segs;
946
947 /* record the sent skb in the sent_skb table */
948 BUG_ON(txo->sent_skb_list[start]);
949 txo->sent_skb_list[start] = skb;
950
951 /* Ensure txq has space for the next skb; Else stop the queue
952 * *BEFORE* ringing the tx doorbell, so that we serialze the
953 * tx compls of the current transmit which'll wake up the queue
954 */
955 atomic_add(wrb_cnt, &txq->used);
956 if ((BE_MAX_TX_FRAG_COUNT + atomic_read(&txq->used)) >=
957 txq->len) {
958 netif_stop_subqueue(netdev, skb_get_queue_mapping(skb));
959 stopped = true;
960 }
961
962 be_txq_notify(adapter, txo, wrb_cnt);
963
964 be_tx_stats_update(txo, wrb_cnt, copied, gso_segs, stopped);
965 } else {
966 txq->head = start;
967 dev_kfree_skb_any(skb);
968 }
969 return NETDEV_TX_OK;
970 }
971
972 static int be_change_mtu(struct net_device *netdev, int new_mtu)
973 {
974 struct be_adapter *adapter = netdev_priv(netdev);
975 if (new_mtu < BE_MIN_MTU ||
976 new_mtu > (BE_MAX_JUMBO_FRAME_SIZE -
977 (ETH_HLEN + ETH_FCS_LEN))) {
978 dev_info(&adapter->pdev->dev,
979 "MTU must be between %d and %d bytes\n",
980 BE_MIN_MTU,
981 (BE_MAX_JUMBO_FRAME_SIZE - (ETH_HLEN + ETH_FCS_LEN)));
982 return -EINVAL;
983 }
984 dev_info(&adapter->pdev->dev, "MTU changed from %d to %d bytes\n",
985 netdev->mtu, new_mtu);
986 netdev->mtu = new_mtu;
987 return 0;
988 }
989
990 /*
991 * A max of 64 (BE_NUM_VLANS_SUPPORTED) vlans can be configured in BE.
992 * If the user configures more, place BE in vlan promiscuous mode.
993 */
994 static int be_vid_config(struct be_adapter *adapter)
995 {
996 u16 vids[BE_NUM_VLANS_SUPPORTED];
997 u16 num = 0, i;
998 int status = 0;
999
1000 /* No need to further configure vids if in promiscuous mode */
1001 if (adapter->promiscuous)
1002 return 0;
1003
1004 if (adapter->vlans_added > adapter->max_vlans)
1005 goto set_vlan_promisc;
1006
1007 /* Construct VLAN Table to give to HW */
1008 for (i = 0; i < VLAN_N_VID; i++)
1009 if (adapter->vlan_tag[i])
1010 vids[num++] = cpu_to_le16(i);
1011
1012 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1013 vids, num, 1, 0);
1014
1015 /* Set to VLAN promisc mode as setting VLAN filter failed */
1016 if (status) {
1017 dev_info(&adapter->pdev->dev, "Exhausted VLAN HW filters.\n");
1018 dev_info(&adapter->pdev->dev, "Disabling HW VLAN filtering.\n");
1019 goto set_vlan_promisc;
1020 }
1021
1022 return status;
1023
1024 set_vlan_promisc:
1025 status = be_cmd_vlan_config(adapter, adapter->if_handle,
1026 NULL, 0, 1, 1);
1027 return status;
1028 }
1029
1030 static int be_vlan_add_vid(struct net_device *netdev, __be16 proto, u16 vid)
1031 {
1032 struct be_adapter *adapter = netdev_priv(netdev);
1033 int status = 0;
1034
1035 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1036 status = -EINVAL;
1037 goto ret;
1038 }
1039
1040 /* Packets with VID 0 are always received by Lancer by default */
1041 if (lancer_chip(adapter) && vid == 0)
1042 goto ret;
1043
1044 adapter->vlan_tag[vid] = 1;
1045 if (adapter->vlans_added <= (adapter->max_vlans + 1))
1046 status = be_vid_config(adapter);
1047
1048 if (!status)
1049 adapter->vlans_added++;
1050 else
1051 adapter->vlan_tag[vid] = 0;
1052 ret:
1053 return status;
1054 }
1055
1056 static int be_vlan_rem_vid(struct net_device *netdev, __be16 proto, u16 vid)
1057 {
1058 struct be_adapter *adapter = netdev_priv(netdev);
1059 int status = 0;
1060
1061 if (!lancer_chip(adapter) && !be_physfn(adapter)) {
1062 status = -EINVAL;
1063 goto ret;
1064 }
1065
1066 /* Packets with VID 0 are always received by Lancer by default */
1067 if (lancer_chip(adapter) && vid == 0)
1068 goto ret;
1069
1070 adapter->vlan_tag[vid] = 0;
1071 if (adapter->vlans_added <= adapter->max_vlans)
1072 status = be_vid_config(adapter);
1073
1074 if (!status)
1075 adapter->vlans_added--;
1076 else
1077 adapter->vlan_tag[vid] = 1;
1078 ret:
1079 return status;
1080 }
1081
1082 static void be_set_rx_mode(struct net_device *netdev)
1083 {
1084 struct be_adapter *adapter = netdev_priv(netdev);
1085 int status;
1086
1087 if (netdev->flags & IFF_PROMISC) {
1088 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1089 adapter->promiscuous = true;
1090 goto done;
1091 }
1092
1093 /* BE was previously in promiscuous mode; disable it */
1094 if (adapter->promiscuous) {
1095 adapter->promiscuous = false;
1096 be_cmd_rx_filter(adapter, IFF_PROMISC, OFF);
1097
1098 if (adapter->vlans_added)
1099 be_vid_config(adapter);
1100 }
1101
1102 /* Enable multicast promisc if num configured exceeds what we support */
1103 if (netdev->flags & IFF_ALLMULTI ||
1104 netdev_mc_count(netdev) > adapter->max_mcast_mac) {
1105 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1106 goto done;
1107 }
1108
1109 if (netdev_uc_count(netdev) != adapter->uc_macs) {
1110 struct netdev_hw_addr *ha;
1111 int i = 1; /* First slot is claimed by the Primary MAC */
1112
1113 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++) {
1114 be_cmd_pmac_del(adapter, adapter->if_handle,
1115 adapter->pmac_id[i], 0);
1116 }
1117
1118 if (netdev_uc_count(netdev) > adapter->max_pmac_cnt) {
1119 be_cmd_rx_filter(adapter, IFF_PROMISC, ON);
1120 adapter->promiscuous = true;
1121 goto done;
1122 }
1123
1124 netdev_for_each_uc_addr(ha, adapter->netdev) {
1125 adapter->uc_macs++; /* First slot is for Primary MAC */
1126 be_cmd_pmac_add(adapter, (u8 *)ha->addr,
1127 adapter->if_handle,
1128 &adapter->pmac_id[adapter->uc_macs], 0);
1129 }
1130 }
1131
1132 status = be_cmd_rx_filter(adapter, IFF_MULTICAST, ON);
1133
1134 /* Set to MCAST promisc mode if setting MULTICAST address fails */
1135 if (status) {
1136 dev_info(&adapter->pdev->dev, "Exhausted multicast HW filters.\n");
1137 dev_info(&adapter->pdev->dev, "Disabling HW multicast filtering.\n");
1138 be_cmd_rx_filter(adapter, IFF_ALLMULTI, ON);
1139 }
1140 done:
1141 return;
1142 }
1143
1144 static int be_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
1145 {
1146 struct be_adapter *adapter = netdev_priv(netdev);
1147 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1148 int status;
1149 bool active_mac = false;
1150 u32 pmac_id;
1151 u8 old_mac[ETH_ALEN];
1152
1153 if (!sriov_enabled(adapter))
1154 return -EPERM;
1155
1156 if (!is_valid_ether_addr(mac) || vf >= adapter->num_vfs)
1157 return -EINVAL;
1158
1159 if (lancer_chip(adapter)) {
1160 status = be_cmd_get_mac_from_list(adapter, old_mac, &active_mac,
1161 &pmac_id, vf + 1);
1162 if (!status && active_mac)
1163 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1164 pmac_id, vf + 1);
1165
1166 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
1167 } else {
1168 status = be_cmd_pmac_del(adapter, vf_cfg->if_handle,
1169 vf_cfg->pmac_id, vf + 1);
1170
1171 status = be_cmd_pmac_add(adapter, mac, vf_cfg->if_handle,
1172 &vf_cfg->pmac_id, vf + 1);
1173 }
1174
1175 if (status)
1176 dev_err(&adapter->pdev->dev, "MAC %pM set on VF %d Failed\n",
1177 mac, vf);
1178 else
1179 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
1180
1181 return status;
1182 }
1183
1184 static int be_get_vf_config(struct net_device *netdev, int vf,
1185 struct ifla_vf_info *vi)
1186 {
1187 struct be_adapter *adapter = netdev_priv(netdev);
1188 struct be_vf_cfg *vf_cfg = &adapter->vf_cfg[vf];
1189
1190 if (!sriov_enabled(adapter))
1191 return -EPERM;
1192
1193 if (vf >= adapter->num_vfs)
1194 return -EINVAL;
1195
1196 vi->vf = vf;
1197 vi->tx_rate = vf_cfg->tx_rate;
1198 vi->vlan = vf_cfg->vlan_tag;
1199 vi->qos = 0;
1200 memcpy(&vi->mac, vf_cfg->mac_addr, ETH_ALEN);
1201
1202 return 0;
1203 }
1204
1205 static int be_set_vf_vlan(struct net_device *netdev,
1206 int vf, u16 vlan, u8 qos)
1207 {
1208 struct be_adapter *adapter = netdev_priv(netdev);
1209 int status = 0;
1210
1211 if (!sriov_enabled(adapter))
1212 return -EPERM;
1213
1214 if (vf >= adapter->num_vfs || vlan > 4095)
1215 return -EINVAL;
1216
1217 if (vlan) {
1218 if (adapter->vf_cfg[vf].vlan_tag != vlan) {
1219 /* If this is new value, program it. Else skip. */
1220 adapter->vf_cfg[vf].vlan_tag = vlan;
1221
1222 status = be_cmd_set_hsw_config(adapter, vlan,
1223 vf + 1, adapter->vf_cfg[vf].if_handle);
1224 }
1225 } else {
1226 /* Reset Transparent Vlan Tagging. */
1227 adapter->vf_cfg[vf].vlan_tag = 0;
1228 vlan = adapter->vf_cfg[vf].def_vid;
1229 status = be_cmd_set_hsw_config(adapter, vlan, vf + 1,
1230 adapter->vf_cfg[vf].if_handle);
1231 }
1232
1233
1234 if (status)
1235 dev_info(&adapter->pdev->dev,
1236 "VLAN %d config on VF %d failed\n", vlan, vf);
1237 return status;
1238 }
1239
1240 static int be_set_vf_tx_rate(struct net_device *netdev,
1241 int vf, int rate)
1242 {
1243 struct be_adapter *adapter = netdev_priv(netdev);
1244 int status = 0;
1245
1246 if (!sriov_enabled(adapter))
1247 return -EPERM;
1248
1249 if (vf >= adapter->num_vfs)
1250 return -EINVAL;
1251
1252 if (rate < 100 || rate > 10000) {
1253 dev_err(&adapter->pdev->dev,
1254 "tx rate must be between 100 and 10000 Mbps\n");
1255 return -EINVAL;
1256 }
1257
1258 if (lancer_chip(adapter))
1259 status = be_cmd_set_profile_config(adapter, rate / 10, vf + 1);
1260 else
1261 status = be_cmd_set_qos(adapter, rate / 10, vf + 1);
1262
1263 if (status)
1264 dev_err(&adapter->pdev->dev,
1265 "tx rate %d on VF %d failed\n", rate, vf);
1266 else
1267 adapter->vf_cfg[vf].tx_rate = rate;
1268 return status;
1269 }
1270
1271 static void be_eqd_update(struct be_adapter *adapter, struct be_eq_obj *eqo)
1272 {
1273 struct be_rx_stats *stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1274 ulong now = jiffies;
1275 ulong delta = now - stats->rx_jiffies;
1276 u64 pkts;
1277 unsigned int start, eqd;
1278
1279 if (!eqo->enable_aic) {
1280 eqd = eqo->eqd;
1281 goto modify_eqd;
1282 }
1283
1284 if (eqo->idx >= adapter->num_rx_qs)
1285 return;
1286
1287 stats = rx_stats(&adapter->rx_obj[eqo->idx]);
1288
1289 /* Wrapped around */
1290 if (time_before(now, stats->rx_jiffies)) {
1291 stats->rx_jiffies = now;
1292 return;
1293 }
1294
1295 /* Update once a second */
1296 if (delta < HZ)
1297 return;
1298
1299 do {
1300 start = u64_stats_fetch_begin_bh(&stats->sync);
1301 pkts = stats->rx_pkts;
1302 } while (u64_stats_fetch_retry_bh(&stats->sync, start));
1303
1304 stats->rx_pps = (unsigned long)(pkts - stats->rx_pkts_prev) / (delta / HZ);
1305 stats->rx_pkts_prev = pkts;
1306 stats->rx_jiffies = now;
1307 eqd = (stats->rx_pps / 110000) << 3;
1308 eqd = min(eqd, eqo->max_eqd);
1309 eqd = max(eqd, eqo->min_eqd);
1310 if (eqd < 10)
1311 eqd = 0;
1312
1313 modify_eqd:
1314 if (eqd != eqo->cur_eqd) {
1315 be_cmd_modify_eqd(adapter, eqo->q.id, eqd);
1316 eqo->cur_eqd = eqd;
1317 }
1318 }
1319
1320 static void be_rx_stats_update(struct be_rx_obj *rxo,
1321 struct be_rx_compl_info *rxcp)
1322 {
1323 struct be_rx_stats *stats = rx_stats(rxo);
1324
1325 u64_stats_update_begin(&stats->sync);
1326 stats->rx_compl++;
1327 stats->rx_bytes += rxcp->pkt_size;
1328 stats->rx_pkts++;
1329 if (rxcp->pkt_type == BE_MULTICAST_PACKET)
1330 stats->rx_mcast_pkts++;
1331 if (rxcp->err)
1332 stats->rx_compl_err++;
1333 u64_stats_update_end(&stats->sync);
1334 }
1335
1336 static inline bool csum_passed(struct be_rx_compl_info *rxcp)
1337 {
1338 /* L4 checksum is not reliable for non TCP/UDP packets.
1339 * Also ignore ipcksm for ipv6 pkts */
1340 return (rxcp->tcpf || rxcp->udpf) && rxcp->l4_csum &&
1341 (rxcp->ip_csum || rxcp->ipv6);
1342 }
1343
1344 static struct be_rx_page_info *get_rx_page_info(struct be_rx_obj *rxo,
1345 u16 frag_idx)
1346 {
1347 struct be_adapter *adapter = rxo->adapter;
1348 struct be_rx_page_info *rx_page_info;
1349 struct be_queue_info *rxq = &rxo->q;
1350
1351 rx_page_info = &rxo->page_info_tbl[frag_idx];
1352 BUG_ON(!rx_page_info->page);
1353
1354 if (rx_page_info->last_page_user) {
1355 dma_unmap_page(&adapter->pdev->dev,
1356 dma_unmap_addr(rx_page_info, bus),
1357 adapter->big_page_size, DMA_FROM_DEVICE);
1358 rx_page_info->last_page_user = false;
1359 }
1360
1361 atomic_dec(&rxq->used);
1362 return rx_page_info;
1363 }
1364
1365 /* Throwaway the data in the Rx completion */
1366 static void be_rx_compl_discard(struct be_rx_obj *rxo,
1367 struct be_rx_compl_info *rxcp)
1368 {
1369 struct be_queue_info *rxq = &rxo->q;
1370 struct be_rx_page_info *page_info;
1371 u16 i, num_rcvd = rxcp->num_rcvd;
1372
1373 for (i = 0; i < num_rcvd; i++) {
1374 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1375 put_page(page_info->page);
1376 memset(page_info, 0, sizeof(*page_info));
1377 index_inc(&rxcp->rxq_idx, rxq->len);
1378 }
1379 }
1380
1381 /*
1382 * skb_fill_rx_data forms a complete skb for an ether frame
1383 * indicated by rxcp.
1384 */
1385 static void skb_fill_rx_data(struct be_rx_obj *rxo, struct sk_buff *skb,
1386 struct be_rx_compl_info *rxcp)
1387 {
1388 struct be_queue_info *rxq = &rxo->q;
1389 struct be_rx_page_info *page_info;
1390 u16 i, j;
1391 u16 hdr_len, curr_frag_len, remaining;
1392 u8 *start;
1393
1394 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1395 start = page_address(page_info->page) + page_info->page_offset;
1396 prefetch(start);
1397
1398 /* Copy data in the first descriptor of this completion */
1399 curr_frag_len = min(rxcp->pkt_size, rx_frag_size);
1400
1401 skb->len = curr_frag_len;
1402 if (curr_frag_len <= BE_HDR_LEN) { /* tiny packet */
1403 memcpy(skb->data, start, curr_frag_len);
1404 /* Complete packet has now been moved to data */
1405 put_page(page_info->page);
1406 skb->data_len = 0;
1407 skb->tail += curr_frag_len;
1408 } else {
1409 hdr_len = ETH_HLEN;
1410 memcpy(skb->data, start, hdr_len);
1411 skb_shinfo(skb)->nr_frags = 1;
1412 skb_frag_set_page(skb, 0, page_info->page);
1413 skb_shinfo(skb)->frags[0].page_offset =
1414 page_info->page_offset + hdr_len;
1415 skb_frag_size_set(&skb_shinfo(skb)->frags[0], curr_frag_len - hdr_len);
1416 skb->data_len = curr_frag_len - hdr_len;
1417 skb->truesize += rx_frag_size;
1418 skb->tail += hdr_len;
1419 }
1420 page_info->page = NULL;
1421
1422 if (rxcp->pkt_size <= rx_frag_size) {
1423 BUG_ON(rxcp->num_rcvd != 1);
1424 return;
1425 }
1426
1427 /* More frags present for this completion */
1428 index_inc(&rxcp->rxq_idx, rxq->len);
1429 remaining = rxcp->pkt_size - curr_frag_len;
1430 for (i = 1, j = 0; i < rxcp->num_rcvd; i++) {
1431 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1432 curr_frag_len = min(remaining, rx_frag_size);
1433
1434 /* Coalesce all frags from the same physical page in one slot */
1435 if (page_info->page_offset == 0) {
1436 /* Fresh page */
1437 j++;
1438 skb_frag_set_page(skb, j, page_info->page);
1439 skb_shinfo(skb)->frags[j].page_offset =
1440 page_info->page_offset;
1441 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1442 skb_shinfo(skb)->nr_frags++;
1443 } else {
1444 put_page(page_info->page);
1445 }
1446
1447 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1448 skb->len += curr_frag_len;
1449 skb->data_len += curr_frag_len;
1450 skb->truesize += rx_frag_size;
1451 remaining -= curr_frag_len;
1452 index_inc(&rxcp->rxq_idx, rxq->len);
1453 page_info->page = NULL;
1454 }
1455 BUG_ON(j > MAX_SKB_FRAGS);
1456 }
1457
1458 /* Process the RX completion indicated by rxcp when GRO is disabled */
1459 static void be_rx_compl_process(struct be_rx_obj *rxo,
1460 struct be_rx_compl_info *rxcp)
1461 {
1462 struct be_adapter *adapter = rxo->adapter;
1463 struct net_device *netdev = adapter->netdev;
1464 struct sk_buff *skb;
1465
1466 skb = netdev_alloc_skb_ip_align(netdev, BE_RX_SKB_ALLOC_SIZE);
1467 if (unlikely(!skb)) {
1468 rx_stats(rxo)->rx_drops_no_skbs++;
1469 be_rx_compl_discard(rxo, rxcp);
1470 return;
1471 }
1472
1473 skb_fill_rx_data(rxo, skb, rxcp);
1474
1475 if (likely((netdev->features & NETIF_F_RXCSUM) && csum_passed(rxcp)))
1476 skb->ip_summed = CHECKSUM_UNNECESSARY;
1477 else
1478 skb_checksum_none_assert(skb);
1479
1480 skb->protocol = eth_type_trans(skb, netdev);
1481 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1482 if (netdev->features & NETIF_F_RXHASH)
1483 skb->rxhash = rxcp->rss_hash;
1484
1485
1486 if (rxcp->vlanf)
1487 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1488
1489 netif_receive_skb(skb);
1490 }
1491
1492 /* Process the RX completion indicated by rxcp when GRO is enabled */
1493 void be_rx_compl_process_gro(struct be_rx_obj *rxo, struct napi_struct *napi,
1494 struct be_rx_compl_info *rxcp)
1495 {
1496 struct be_adapter *adapter = rxo->adapter;
1497 struct be_rx_page_info *page_info;
1498 struct sk_buff *skb = NULL;
1499 struct be_queue_info *rxq = &rxo->q;
1500 u16 remaining, curr_frag_len;
1501 u16 i, j;
1502
1503 skb = napi_get_frags(napi);
1504 if (!skb) {
1505 be_rx_compl_discard(rxo, rxcp);
1506 return;
1507 }
1508
1509 remaining = rxcp->pkt_size;
1510 for (i = 0, j = -1; i < rxcp->num_rcvd; i++) {
1511 page_info = get_rx_page_info(rxo, rxcp->rxq_idx);
1512
1513 curr_frag_len = min(remaining, rx_frag_size);
1514
1515 /* Coalesce all frags from the same physical page in one slot */
1516 if (i == 0 || page_info->page_offset == 0) {
1517 /* First frag or Fresh page */
1518 j++;
1519 skb_frag_set_page(skb, j, page_info->page);
1520 skb_shinfo(skb)->frags[j].page_offset =
1521 page_info->page_offset;
1522 skb_frag_size_set(&skb_shinfo(skb)->frags[j], 0);
1523 } else {
1524 put_page(page_info->page);
1525 }
1526 skb_frag_size_add(&skb_shinfo(skb)->frags[j], curr_frag_len);
1527 skb->truesize += rx_frag_size;
1528 remaining -= curr_frag_len;
1529 index_inc(&rxcp->rxq_idx, rxq->len);
1530 memset(page_info, 0, sizeof(*page_info));
1531 }
1532 BUG_ON(j > MAX_SKB_FRAGS);
1533
1534 skb_shinfo(skb)->nr_frags = j + 1;
1535 skb->len = rxcp->pkt_size;
1536 skb->data_len = rxcp->pkt_size;
1537 skb->ip_summed = CHECKSUM_UNNECESSARY;
1538 skb_record_rx_queue(skb, rxo - &adapter->rx_obj[0]);
1539 if (adapter->netdev->features & NETIF_F_RXHASH)
1540 skb->rxhash = rxcp->rss_hash;
1541
1542 if (rxcp->vlanf)
1543 __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), rxcp->vlan_tag);
1544
1545 napi_gro_frags(napi);
1546 }
1547
1548 static void be_parse_rx_compl_v1(struct be_eth_rx_compl *compl,
1549 struct be_rx_compl_info *rxcp)
1550 {
1551 rxcp->pkt_size =
1552 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, pktsize, compl);
1553 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtp, compl);
1554 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, err, compl);
1555 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, tcpf, compl);
1556 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, udpf, compl);
1557 rxcp->ip_csum =
1558 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ipcksm, compl);
1559 rxcp->l4_csum =
1560 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, l4_cksm, compl);
1561 rxcp->ipv6 =
1562 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, ip_version, compl);
1563 rxcp->rxq_idx =
1564 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, fragndx, compl);
1565 rxcp->num_rcvd =
1566 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, numfrags, compl);
1567 rxcp->pkt_type =
1568 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, cast_enc, compl);
1569 rxcp->rss_hash =
1570 AMAP_GET_BITS(struct amap_eth_rx_compl_v1, rsshash, compl);
1571 if (rxcp->vlanf) {
1572 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vtm,
1573 compl);
1574 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, vlan_tag,
1575 compl);
1576 }
1577 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v1, port, compl);
1578 }
1579
1580 static void be_parse_rx_compl_v0(struct be_eth_rx_compl *compl,
1581 struct be_rx_compl_info *rxcp)
1582 {
1583 rxcp->pkt_size =
1584 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, pktsize, compl);
1585 rxcp->vlanf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtp, compl);
1586 rxcp->err = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, err, compl);
1587 rxcp->tcpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, tcpf, compl);
1588 rxcp->udpf = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, udpf, compl);
1589 rxcp->ip_csum =
1590 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ipcksm, compl);
1591 rxcp->l4_csum =
1592 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, l4_cksm, compl);
1593 rxcp->ipv6 =
1594 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, ip_version, compl);
1595 rxcp->rxq_idx =
1596 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, fragndx, compl);
1597 rxcp->num_rcvd =
1598 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, numfrags, compl);
1599 rxcp->pkt_type =
1600 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, cast_enc, compl);
1601 rxcp->rss_hash =
1602 AMAP_GET_BITS(struct amap_eth_rx_compl_v0, rsshash, compl);
1603 if (rxcp->vlanf) {
1604 rxcp->vtm = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vtm,
1605 compl);
1606 rxcp->vlan_tag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, vlan_tag,
1607 compl);
1608 }
1609 rxcp->port = AMAP_GET_BITS(struct amap_eth_rx_compl_v0, port, compl);
1610 rxcp->ip_frag = AMAP_GET_BITS(struct amap_eth_rx_compl_v0,
1611 ip_frag, compl);
1612 }
1613
1614 static struct be_rx_compl_info *be_rx_compl_get(struct be_rx_obj *rxo)
1615 {
1616 struct be_eth_rx_compl *compl = queue_tail_node(&rxo->cq);
1617 struct be_rx_compl_info *rxcp = &rxo->rxcp;
1618 struct be_adapter *adapter = rxo->adapter;
1619
1620 /* For checking the valid bit it is Ok to use either definition as the
1621 * valid bit is at the same position in both v0 and v1 Rx compl */
1622 if (compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] == 0)
1623 return NULL;
1624
1625 rmb();
1626 be_dws_le_to_cpu(compl, sizeof(*compl));
1627
1628 if (adapter->be3_native)
1629 be_parse_rx_compl_v1(compl, rxcp);
1630 else
1631 be_parse_rx_compl_v0(compl, rxcp);
1632
1633 if (rxcp->ip_frag)
1634 rxcp->l4_csum = 0;
1635
1636 if (rxcp->vlanf) {
1637 /* vlanf could be wrongly set in some cards.
1638 * ignore if vtm is not set */
1639 if ((adapter->function_mode & FLEX10_MODE) && !rxcp->vtm)
1640 rxcp->vlanf = 0;
1641
1642 if (!lancer_chip(adapter))
1643 rxcp->vlan_tag = swab16(rxcp->vlan_tag);
1644
1645 if (adapter->pvid == (rxcp->vlan_tag & VLAN_VID_MASK) &&
1646 !adapter->vlan_tag[rxcp->vlan_tag])
1647 rxcp->vlanf = 0;
1648 }
1649
1650 /* As the compl has been parsed, reset it; we wont touch it again */
1651 compl->dw[offsetof(struct amap_eth_rx_compl_v1, valid) / 32] = 0;
1652
1653 queue_tail_inc(&rxo->cq);
1654 return rxcp;
1655 }
1656
1657 static inline struct page *be_alloc_pages(u32 size, gfp_t gfp)
1658 {
1659 u32 order = get_order(size);
1660
1661 if (order > 0)
1662 gfp |= __GFP_COMP;
1663 return alloc_pages(gfp, order);
1664 }
1665
1666 /*
1667 * Allocate a page, split it to fragments of size rx_frag_size and post as
1668 * receive buffers to BE
1669 */
1670 static void be_post_rx_frags(struct be_rx_obj *rxo, gfp_t gfp)
1671 {
1672 struct be_adapter *adapter = rxo->adapter;
1673 struct be_rx_page_info *page_info = NULL, *prev_page_info = NULL;
1674 struct be_queue_info *rxq = &rxo->q;
1675 struct page *pagep = NULL;
1676 struct be_eth_rx_d *rxd;
1677 u64 page_dmaaddr = 0, frag_dmaaddr;
1678 u32 posted, page_offset = 0;
1679
1680 page_info = &rxo->page_info_tbl[rxq->head];
1681 for (posted = 0; posted < MAX_RX_POST && !page_info->page; posted++) {
1682 if (!pagep) {
1683 pagep = be_alloc_pages(adapter->big_page_size, gfp);
1684 if (unlikely(!pagep)) {
1685 rx_stats(rxo)->rx_post_fail++;
1686 break;
1687 }
1688 page_dmaaddr = dma_map_page(&adapter->pdev->dev, pagep,
1689 0, adapter->big_page_size,
1690 DMA_FROM_DEVICE);
1691 page_info->page_offset = 0;
1692 } else {
1693 get_page(pagep);
1694 page_info->page_offset = page_offset + rx_frag_size;
1695 }
1696 page_offset = page_info->page_offset;
1697 page_info->page = pagep;
1698 dma_unmap_addr_set(page_info, bus, page_dmaaddr);
1699 frag_dmaaddr = page_dmaaddr + page_info->page_offset;
1700
1701 rxd = queue_head_node(rxq);
1702 rxd->fragpa_lo = cpu_to_le32(frag_dmaaddr & 0xFFFFFFFF);
1703 rxd->fragpa_hi = cpu_to_le32(upper_32_bits(frag_dmaaddr));
1704
1705 /* Any space left in the current big page for another frag? */
1706 if ((page_offset + rx_frag_size + rx_frag_size) >
1707 adapter->big_page_size) {
1708 pagep = NULL;
1709 page_info->last_page_user = true;
1710 }
1711
1712 prev_page_info = page_info;
1713 queue_head_inc(rxq);
1714 page_info = &rxo->page_info_tbl[rxq->head];
1715 }
1716 if (pagep)
1717 prev_page_info->last_page_user = true;
1718
1719 if (posted) {
1720 atomic_add(posted, &rxq->used);
1721 be_rxq_notify(adapter, rxq->id, posted);
1722 } else if (atomic_read(&rxq->used) == 0) {
1723 /* Let be_worker replenish when memory is available */
1724 rxo->rx_post_starved = true;
1725 }
1726 }
1727
1728 static struct be_eth_tx_compl *be_tx_compl_get(struct be_queue_info *tx_cq)
1729 {
1730 struct be_eth_tx_compl *txcp = queue_tail_node(tx_cq);
1731
1732 if (txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] == 0)
1733 return NULL;
1734
1735 rmb();
1736 be_dws_le_to_cpu(txcp, sizeof(*txcp));
1737
1738 txcp->dw[offsetof(struct amap_eth_tx_compl, valid) / 32] = 0;
1739
1740 queue_tail_inc(tx_cq);
1741 return txcp;
1742 }
1743
1744 static u16 be_tx_compl_process(struct be_adapter *adapter,
1745 struct be_tx_obj *txo, u16 last_index)
1746 {
1747 struct be_queue_info *txq = &txo->q;
1748 struct be_eth_wrb *wrb;
1749 struct sk_buff **sent_skbs = txo->sent_skb_list;
1750 struct sk_buff *sent_skb;
1751 u16 cur_index, num_wrbs = 1; /* account for hdr wrb */
1752 bool unmap_skb_hdr = true;
1753
1754 sent_skb = sent_skbs[txq->tail];
1755 BUG_ON(!sent_skb);
1756 sent_skbs[txq->tail] = NULL;
1757
1758 /* skip header wrb */
1759 queue_tail_inc(txq);
1760
1761 do {
1762 cur_index = txq->tail;
1763 wrb = queue_tail_node(txq);
1764 unmap_tx_frag(&adapter->pdev->dev, wrb,
1765 (unmap_skb_hdr && skb_headlen(sent_skb)));
1766 unmap_skb_hdr = false;
1767
1768 num_wrbs++;
1769 queue_tail_inc(txq);
1770 } while (cur_index != last_index);
1771
1772 kfree_skb(sent_skb);
1773 return num_wrbs;
1774 }
1775
1776 /* Return the number of events in the event queue */
1777 static inline int events_get(struct be_eq_obj *eqo)
1778 {
1779 struct be_eq_entry *eqe;
1780 int num = 0;
1781
1782 do {
1783 eqe = queue_tail_node(&eqo->q);
1784 if (eqe->evt == 0)
1785 break;
1786
1787 rmb();
1788 eqe->evt = 0;
1789 num++;
1790 queue_tail_inc(&eqo->q);
1791 } while (true);
1792
1793 return num;
1794 }
1795
1796 /* Leaves the EQ is disarmed state */
1797 static void be_eq_clean(struct be_eq_obj *eqo)
1798 {
1799 int num = events_get(eqo);
1800
1801 be_eq_notify(eqo->adapter, eqo->q.id, false, true, num);
1802 }
1803
1804 static void be_rx_cq_clean(struct be_rx_obj *rxo)
1805 {
1806 struct be_rx_page_info *page_info;
1807 struct be_queue_info *rxq = &rxo->q;
1808 struct be_queue_info *rx_cq = &rxo->cq;
1809 struct be_rx_compl_info *rxcp;
1810 struct be_adapter *adapter = rxo->adapter;
1811 int flush_wait = 0;
1812 u16 tail;
1813
1814 /* Consume pending rx completions.
1815 * Wait for the flush completion (identified by zero num_rcvd)
1816 * to arrive. Notify CQ even when there are no more CQ entries
1817 * for HW to flush partially coalesced CQ entries.
1818 * In Lancer, there is no need to wait for flush compl.
1819 */
1820 for (;;) {
1821 rxcp = be_rx_compl_get(rxo);
1822 if (rxcp == NULL) {
1823 if (lancer_chip(adapter))
1824 break;
1825
1826 if (flush_wait++ > 10 || be_hw_error(adapter)) {
1827 dev_warn(&adapter->pdev->dev,
1828 "did not receive flush compl\n");
1829 break;
1830 }
1831 be_cq_notify(adapter, rx_cq->id, true, 0);
1832 mdelay(1);
1833 } else {
1834 be_rx_compl_discard(rxo, rxcp);
1835 be_cq_notify(adapter, rx_cq->id, false, 1);
1836 if (rxcp->num_rcvd == 0)
1837 break;
1838 }
1839 }
1840
1841 /* After cleanup, leave the CQ in unarmed state */
1842 be_cq_notify(adapter, rx_cq->id, false, 0);
1843
1844 /* Then free posted rx buffers that were not used */
1845 tail = (rxq->head + rxq->len - atomic_read(&rxq->used)) % rxq->len;
1846 for (; atomic_read(&rxq->used) > 0; index_inc(&tail, rxq->len)) {
1847 page_info = get_rx_page_info(rxo, tail);
1848 put_page(page_info->page);
1849 memset(page_info, 0, sizeof(*page_info));
1850 }
1851 BUG_ON(atomic_read(&rxq->used));
1852 rxq->tail = rxq->head = 0;
1853 }
1854
1855 static void be_tx_compl_clean(struct be_adapter *adapter)
1856 {
1857 struct be_tx_obj *txo;
1858 struct be_queue_info *txq;
1859 struct be_eth_tx_compl *txcp;
1860 u16 end_idx, cmpl = 0, timeo = 0, num_wrbs = 0;
1861 struct sk_buff *sent_skb;
1862 bool dummy_wrb;
1863 int i, pending_txqs;
1864
1865 /* Wait for a max of 200ms for all the tx-completions to arrive. */
1866 do {
1867 pending_txqs = adapter->num_tx_qs;
1868
1869 for_all_tx_queues(adapter, txo, i) {
1870 txq = &txo->q;
1871 while ((txcp = be_tx_compl_get(&txo->cq))) {
1872 end_idx =
1873 AMAP_GET_BITS(struct amap_eth_tx_compl,
1874 wrb_index, txcp);
1875 num_wrbs += be_tx_compl_process(adapter, txo,
1876 end_idx);
1877 cmpl++;
1878 }
1879 if (cmpl) {
1880 be_cq_notify(adapter, txo->cq.id, false, cmpl);
1881 atomic_sub(num_wrbs, &txq->used);
1882 cmpl = 0;
1883 num_wrbs = 0;
1884 }
1885 if (atomic_read(&txq->used) == 0)
1886 pending_txqs--;
1887 }
1888
1889 if (pending_txqs == 0 || ++timeo > 200)
1890 break;
1891
1892 mdelay(1);
1893 } while (true);
1894
1895 for_all_tx_queues(adapter, txo, i) {
1896 txq = &txo->q;
1897 if (atomic_read(&txq->used))
1898 dev_err(&adapter->pdev->dev, "%d pending tx-compls\n",
1899 atomic_read(&txq->used));
1900
1901 /* free posted tx for which compls will never arrive */
1902 while (atomic_read(&txq->used)) {
1903 sent_skb = txo->sent_skb_list[txq->tail];
1904 end_idx = txq->tail;
1905 num_wrbs = wrb_cnt_for_skb(adapter, sent_skb,
1906 &dummy_wrb);
1907 index_adv(&end_idx, num_wrbs - 1, txq->len);
1908 num_wrbs = be_tx_compl_process(adapter, txo, end_idx);
1909 atomic_sub(num_wrbs, &txq->used);
1910 }
1911 }
1912 }
1913
1914 static void be_evt_queues_destroy(struct be_adapter *adapter)
1915 {
1916 struct be_eq_obj *eqo;
1917 int i;
1918
1919 for_all_evt_queues(adapter, eqo, i) {
1920 if (eqo->q.created) {
1921 be_eq_clean(eqo);
1922 be_cmd_q_destroy(adapter, &eqo->q, QTYPE_EQ);
1923 }
1924 be_queue_free(adapter, &eqo->q);
1925 }
1926 }
1927
1928 static int be_evt_queues_create(struct be_adapter *adapter)
1929 {
1930 struct be_queue_info *eq;
1931 struct be_eq_obj *eqo;
1932 int i, rc;
1933
1934 adapter->num_evt_qs = num_irqs(adapter);
1935
1936 for_all_evt_queues(adapter, eqo, i) {
1937 eqo->adapter = adapter;
1938 eqo->tx_budget = BE_TX_BUDGET;
1939 eqo->idx = i;
1940 eqo->max_eqd = BE_MAX_EQD;
1941 eqo->enable_aic = true;
1942
1943 eq = &eqo->q;
1944 rc = be_queue_alloc(adapter, eq, EVNT_Q_LEN,
1945 sizeof(struct be_eq_entry));
1946 if (rc)
1947 return rc;
1948
1949 rc = be_cmd_eq_create(adapter, eq, eqo->cur_eqd);
1950 if (rc)
1951 return rc;
1952 }
1953 return 0;
1954 }
1955
1956 static void be_mcc_queues_destroy(struct be_adapter *adapter)
1957 {
1958 struct be_queue_info *q;
1959
1960 q = &adapter->mcc_obj.q;
1961 if (q->created)
1962 be_cmd_q_destroy(adapter, q, QTYPE_MCCQ);
1963 be_queue_free(adapter, q);
1964
1965 q = &adapter->mcc_obj.cq;
1966 if (q->created)
1967 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
1968 be_queue_free(adapter, q);
1969 }
1970
1971 /* Must be called only after TX qs are created as MCC shares TX EQ */
1972 static int be_mcc_queues_create(struct be_adapter *adapter)
1973 {
1974 struct be_queue_info *q, *cq;
1975
1976 cq = &adapter->mcc_obj.cq;
1977 if (be_queue_alloc(adapter, cq, MCC_CQ_LEN,
1978 sizeof(struct be_mcc_compl)))
1979 goto err;
1980
1981 /* Use the default EQ for MCC completions */
1982 if (be_cmd_cq_create(adapter, cq, &mcc_eqo(adapter)->q, true, 0))
1983 goto mcc_cq_free;
1984
1985 q = &adapter->mcc_obj.q;
1986 if (be_queue_alloc(adapter, q, MCC_Q_LEN, sizeof(struct be_mcc_wrb)))
1987 goto mcc_cq_destroy;
1988
1989 if (be_cmd_mccq_create(adapter, q, cq))
1990 goto mcc_q_free;
1991
1992 return 0;
1993
1994 mcc_q_free:
1995 be_queue_free(adapter, q);
1996 mcc_cq_destroy:
1997 be_cmd_q_destroy(adapter, cq, QTYPE_CQ);
1998 mcc_cq_free:
1999 be_queue_free(adapter, cq);
2000 err:
2001 return -1;
2002 }
2003
2004 static void be_tx_queues_destroy(struct be_adapter *adapter)
2005 {
2006 struct be_queue_info *q;
2007 struct be_tx_obj *txo;
2008 u8 i;
2009
2010 for_all_tx_queues(adapter, txo, i) {
2011 q = &txo->q;
2012 if (q->created)
2013 be_cmd_q_destroy(adapter, q, QTYPE_TXQ);
2014 be_queue_free(adapter, q);
2015
2016 q = &txo->cq;
2017 if (q->created)
2018 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2019 be_queue_free(adapter, q);
2020 }
2021 }
2022
2023 static int be_num_txqs_want(struct be_adapter *adapter)
2024 {
2025 if ((!lancer_chip(adapter) && sriov_want(adapter)) ||
2026 be_is_mc(adapter) ||
2027 (!lancer_chip(adapter) && !be_physfn(adapter)) ||
2028 BE2_chip(adapter))
2029 return 1;
2030 else
2031 return adapter->max_tx_queues;
2032 }
2033
2034 static int be_tx_cqs_create(struct be_adapter *adapter)
2035 {
2036 struct be_queue_info *cq, *eq;
2037 int status;
2038 struct be_tx_obj *txo;
2039 u8 i;
2040
2041 adapter->num_tx_qs = be_num_txqs_want(adapter);
2042 if (adapter->num_tx_qs != MAX_TX_QS) {
2043 rtnl_lock();
2044 netif_set_real_num_tx_queues(adapter->netdev,
2045 adapter->num_tx_qs);
2046 rtnl_unlock();
2047 }
2048
2049 for_all_tx_queues(adapter, txo, i) {
2050 cq = &txo->cq;
2051 status = be_queue_alloc(adapter, cq, TX_CQ_LEN,
2052 sizeof(struct be_eth_tx_compl));
2053 if (status)
2054 return status;
2055
2056 /* If num_evt_qs is less than num_tx_qs, then more than
2057 * one txq share an eq
2058 */
2059 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2060 status = be_cmd_cq_create(adapter, cq, eq, false, 3);
2061 if (status)
2062 return status;
2063 }
2064 return 0;
2065 }
2066
2067 static int be_tx_qs_create(struct be_adapter *adapter)
2068 {
2069 struct be_tx_obj *txo;
2070 int i, status;
2071
2072 for_all_tx_queues(adapter, txo, i) {
2073 status = be_queue_alloc(adapter, &txo->q, TX_Q_LEN,
2074 sizeof(struct be_eth_wrb));
2075 if (status)
2076 return status;
2077
2078 status = be_cmd_txq_create(adapter, txo);
2079 if (status)
2080 return status;
2081 }
2082
2083 dev_info(&adapter->pdev->dev, "created %d TX queue(s)\n",
2084 adapter->num_tx_qs);
2085 return 0;
2086 }
2087
2088 static void be_rx_cqs_destroy(struct be_adapter *adapter)
2089 {
2090 struct be_queue_info *q;
2091 struct be_rx_obj *rxo;
2092 int i;
2093
2094 for_all_rx_queues(adapter, rxo, i) {
2095 q = &rxo->cq;
2096 if (q->created)
2097 be_cmd_q_destroy(adapter, q, QTYPE_CQ);
2098 be_queue_free(adapter, q);
2099 }
2100 }
2101
2102 static int be_rx_cqs_create(struct be_adapter *adapter)
2103 {
2104 struct be_queue_info *eq, *cq;
2105 struct be_rx_obj *rxo;
2106 int rc, i;
2107
2108 /* We'll create as many RSS rings as there are irqs.
2109 * But when there's only one irq there's no use creating RSS rings
2110 */
2111 adapter->num_rx_qs = (num_irqs(adapter) > 1) ?
2112 num_irqs(adapter) + 1 : 1;
2113 if (adapter->num_rx_qs != MAX_RX_QS) {
2114 rtnl_lock();
2115 netif_set_real_num_rx_queues(adapter->netdev,
2116 adapter->num_rx_qs);
2117 rtnl_unlock();
2118 }
2119
2120 adapter->big_page_size = (1 << get_order(rx_frag_size)) * PAGE_SIZE;
2121 for_all_rx_queues(adapter, rxo, i) {
2122 rxo->adapter = adapter;
2123 cq = &rxo->cq;
2124 rc = be_queue_alloc(adapter, cq, RX_CQ_LEN,
2125 sizeof(struct be_eth_rx_compl));
2126 if (rc)
2127 return rc;
2128
2129 eq = &adapter->eq_obj[i % adapter->num_evt_qs].q;
2130 rc = be_cmd_cq_create(adapter, cq, eq, false, 3);
2131 if (rc)
2132 return rc;
2133 }
2134
2135 dev_info(&adapter->pdev->dev,
2136 "created %d RSS queue(s) and 1 default RX queue\n",
2137 adapter->num_rx_qs - 1);
2138 return 0;
2139 }
2140
2141 static irqreturn_t be_intx(int irq, void *dev)
2142 {
2143 struct be_eq_obj *eqo = dev;
2144 struct be_adapter *adapter = eqo->adapter;
2145 int num_evts = 0;
2146
2147 /* IRQ is not expected when NAPI is scheduled as the EQ
2148 * will not be armed.
2149 * But, this can happen on Lancer INTx where it takes
2150 * a while to de-assert INTx or in BE2 where occasionaly
2151 * an interrupt may be raised even when EQ is unarmed.
2152 * If NAPI is already scheduled, then counting & notifying
2153 * events will orphan them.
2154 */
2155 if (napi_schedule_prep(&eqo->napi)) {
2156 num_evts = events_get(eqo);
2157 __napi_schedule(&eqo->napi);
2158 if (num_evts)
2159 eqo->spurious_intr = 0;
2160 }
2161 be_eq_notify(adapter, eqo->q.id, false, true, num_evts);
2162
2163 /* Return IRQ_HANDLED only for the the first spurious intr
2164 * after a valid intr to stop the kernel from branding
2165 * this irq as a bad one!
2166 */
2167 if (num_evts || eqo->spurious_intr++ == 0)
2168 return IRQ_HANDLED;
2169 else
2170 return IRQ_NONE;
2171 }
2172
2173 static irqreturn_t be_msix(int irq, void *dev)
2174 {
2175 struct be_eq_obj *eqo = dev;
2176
2177 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
2178 napi_schedule(&eqo->napi);
2179 return IRQ_HANDLED;
2180 }
2181
2182 static inline bool do_gro(struct be_rx_compl_info *rxcp)
2183 {
2184 return (rxcp->tcpf && !rxcp->err && rxcp->l4_csum) ? true : false;
2185 }
2186
2187 static int be_process_rx(struct be_rx_obj *rxo, struct napi_struct *napi,
2188 int budget)
2189 {
2190 struct be_adapter *adapter = rxo->adapter;
2191 struct be_queue_info *rx_cq = &rxo->cq;
2192 struct be_rx_compl_info *rxcp;
2193 u32 work_done;
2194
2195 for (work_done = 0; work_done < budget; work_done++) {
2196 rxcp = be_rx_compl_get(rxo);
2197 if (!rxcp)
2198 break;
2199
2200 /* Is it a flush compl that has no data */
2201 if (unlikely(rxcp->num_rcvd == 0))
2202 goto loop_continue;
2203
2204 /* Discard compl with partial DMA Lancer B0 */
2205 if (unlikely(!rxcp->pkt_size)) {
2206 be_rx_compl_discard(rxo, rxcp);
2207 goto loop_continue;
2208 }
2209
2210 /* On BE drop pkts that arrive due to imperfect filtering in
2211 * promiscuous mode on some skews
2212 */
2213 if (unlikely(rxcp->port != adapter->port_num &&
2214 !lancer_chip(adapter))) {
2215 be_rx_compl_discard(rxo, rxcp);
2216 goto loop_continue;
2217 }
2218
2219 if (do_gro(rxcp))
2220 be_rx_compl_process_gro(rxo, napi, rxcp);
2221 else
2222 be_rx_compl_process(rxo, rxcp);
2223 loop_continue:
2224 be_rx_stats_update(rxo, rxcp);
2225 }
2226
2227 if (work_done) {
2228 be_cq_notify(adapter, rx_cq->id, true, work_done);
2229
2230 if (atomic_read(&rxo->q.used) < RX_FRAGS_REFILL_WM)
2231 be_post_rx_frags(rxo, GFP_ATOMIC);
2232 }
2233
2234 return work_done;
2235 }
2236
2237 static bool be_process_tx(struct be_adapter *adapter, struct be_tx_obj *txo,
2238 int budget, int idx)
2239 {
2240 struct be_eth_tx_compl *txcp;
2241 int num_wrbs = 0, work_done;
2242
2243 for (work_done = 0; work_done < budget; work_done++) {
2244 txcp = be_tx_compl_get(&txo->cq);
2245 if (!txcp)
2246 break;
2247 num_wrbs += be_tx_compl_process(adapter, txo,
2248 AMAP_GET_BITS(struct amap_eth_tx_compl,
2249 wrb_index, txcp));
2250 }
2251
2252 if (work_done) {
2253 be_cq_notify(adapter, txo->cq.id, true, work_done);
2254 atomic_sub(num_wrbs, &txo->q.used);
2255
2256 /* As Tx wrbs have been freed up, wake up netdev queue
2257 * if it was stopped due to lack of tx wrbs. */
2258 if (__netif_subqueue_stopped(adapter->netdev, idx) &&
2259 atomic_read(&txo->q.used) < txo->q.len / 2) {
2260 netif_wake_subqueue(adapter->netdev, idx);
2261 }
2262
2263 u64_stats_update_begin(&tx_stats(txo)->sync_compl);
2264 tx_stats(txo)->tx_compl += work_done;
2265 u64_stats_update_end(&tx_stats(txo)->sync_compl);
2266 }
2267 return (work_done < budget); /* Done */
2268 }
2269
2270 int be_poll(struct napi_struct *napi, int budget)
2271 {
2272 struct be_eq_obj *eqo = container_of(napi, struct be_eq_obj, napi);
2273 struct be_adapter *adapter = eqo->adapter;
2274 int max_work = 0, work, i, num_evts;
2275 bool tx_done;
2276
2277 num_evts = events_get(eqo);
2278
2279 /* Process all TXQs serviced by this EQ */
2280 for (i = eqo->idx; i < adapter->num_tx_qs; i += adapter->num_evt_qs) {
2281 tx_done = be_process_tx(adapter, &adapter->tx_obj[i],
2282 eqo->tx_budget, i);
2283 if (!tx_done)
2284 max_work = budget;
2285 }
2286
2287 /* This loop will iterate twice for EQ0 in which
2288 * completions of the last RXQ (default one) are also processed
2289 * For other EQs the loop iterates only once
2290 */
2291 for (i = eqo->idx; i < adapter->num_rx_qs; i += adapter->num_evt_qs) {
2292 work = be_process_rx(&adapter->rx_obj[i], napi, budget);
2293 max_work = max(work, max_work);
2294 }
2295
2296 if (is_mcc_eqo(eqo))
2297 be_process_mcc(adapter);
2298
2299 if (max_work < budget) {
2300 napi_complete(napi);
2301 be_eq_notify(adapter, eqo->q.id, true, false, num_evts);
2302 } else {
2303 /* As we'll continue in polling mode, count and clear events */
2304 be_eq_notify(adapter, eqo->q.id, false, false, num_evts);
2305 }
2306 return max_work;
2307 }
2308
2309 void be_detect_error(struct be_adapter *adapter)
2310 {
2311 u32 ue_lo = 0, ue_hi = 0, ue_lo_mask = 0, ue_hi_mask = 0;
2312 u32 sliport_status = 0, sliport_err1 = 0, sliport_err2 = 0;
2313 u32 i;
2314
2315 if (be_hw_error(adapter))
2316 return;
2317
2318 if (lancer_chip(adapter)) {
2319 sliport_status = ioread32(adapter->db + SLIPORT_STATUS_OFFSET);
2320 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2321 sliport_err1 = ioread32(adapter->db +
2322 SLIPORT_ERROR1_OFFSET);
2323 sliport_err2 = ioread32(adapter->db +
2324 SLIPORT_ERROR2_OFFSET);
2325 }
2326 } else {
2327 pci_read_config_dword(adapter->pdev,
2328 PCICFG_UE_STATUS_LOW, &ue_lo);
2329 pci_read_config_dword(adapter->pdev,
2330 PCICFG_UE_STATUS_HIGH, &ue_hi);
2331 pci_read_config_dword(adapter->pdev,
2332 PCICFG_UE_STATUS_LOW_MASK, &ue_lo_mask);
2333 pci_read_config_dword(adapter->pdev,
2334 PCICFG_UE_STATUS_HI_MASK, &ue_hi_mask);
2335
2336 ue_lo = (ue_lo & ~ue_lo_mask);
2337 ue_hi = (ue_hi & ~ue_hi_mask);
2338 }
2339
2340 /* On certain platforms BE hardware can indicate spurious UEs.
2341 * Allow the h/w to stop working completely in case of a real UE.
2342 * Hence not setting the hw_error for UE detection.
2343 */
2344 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2345 adapter->hw_error = true;
2346 dev_err(&adapter->pdev->dev,
2347 "Error detected in the card\n");
2348 }
2349
2350 if (sliport_status & SLIPORT_STATUS_ERR_MASK) {
2351 dev_err(&adapter->pdev->dev,
2352 "ERR: sliport status 0x%x\n", sliport_status);
2353 dev_err(&adapter->pdev->dev,
2354 "ERR: sliport error1 0x%x\n", sliport_err1);
2355 dev_err(&adapter->pdev->dev,
2356 "ERR: sliport error2 0x%x\n", sliport_err2);
2357 }
2358
2359 if (ue_lo) {
2360 for (i = 0; ue_lo; ue_lo >>= 1, i++) {
2361 if (ue_lo & 1)
2362 dev_err(&adapter->pdev->dev,
2363 "UE: %s bit set\n", ue_status_low_desc[i]);
2364 }
2365 }
2366
2367 if (ue_hi) {
2368 for (i = 0; ue_hi; ue_hi >>= 1, i++) {
2369 if (ue_hi & 1)
2370 dev_err(&adapter->pdev->dev,
2371 "UE: %s bit set\n", ue_status_hi_desc[i]);
2372 }
2373 }
2374
2375 }
2376
2377 static void be_msix_disable(struct be_adapter *adapter)
2378 {
2379 if (msix_enabled(adapter)) {
2380 pci_disable_msix(adapter->pdev);
2381 adapter->num_msix_vec = 0;
2382 }
2383 }
2384
2385 static uint be_num_rss_want(struct be_adapter *adapter)
2386 {
2387 u32 num = 0;
2388
2389 if ((adapter->function_caps & BE_FUNCTION_CAPS_RSS) &&
2390 (lancer_chip(adapter) ||
2391 (!sriov_want(adapter) && be_physfn(adapter)))) {
2392 num = adapter->max_rss_queues;
2393 num = min_t(u32, num, (u32)netif_get_num_default_rss_queues());
2394 }
2395 return num;
2396 }
2397
2398 static int be_msix_enable(struct be_adapter *adapter)
2399 {
2400 #define BE_MIN_MSIX_VECTORS 1
2401 int i, status, num_vec, num_roce_vec = 0;
2402 struct device *dev = &adapter->pdev->dev;
2403
2404 /* If RSS queues are not used, need a vec for default RX Q */
2405 num_vec = min(be_num_rss_want(adapter), num_online_cpus());
2406 if (be_roce_supported(adapter)) {
2407 num_roce_vec = min_t(u32, MAX_ROCE_MSIX_VECTORS,
2408 (num_online_cpus() + 1));
2409 num_roce_vec = min(num_roce_vec, MAX_ROCE_EQS);
2410 num_vec += num_roce_vec;
2411 num_vec = min(num_vec, MAX_MSIX_VECTORS);
2412 }
2413 num_vec = max(num_vec, BE_MIN_MSIX_VECTORS);
2414
2415 for (i = 0; i < num_vec; i++)
2416 adapter->msix_entries[i].entry = i;
2417
2418 status = pci_enable_msix(adapter->pdev, adapter->msix_entries, num_vec);
2419 if (status == 0) {
2420 goto done;
2421 } else if (status >= BE_MIN_MSIX_VECTORS) {
2422 num_vec = status;
2423 status = pci_enable_msix(adapter->pdev, adapter->msix_entries,
2424 num_vec);
2425 if (!status)
2426 goto done;
2427 }
2428
2429 dev_warn(dev, "MSIx enable failed\n");
2430 /* INTx is not supported in VFs, so fail probe if enable_msix fails */
2431 if (!be_physfn(adapter))
2432 return status;
2433 return 0;
2434 done:
2435 if (be_roce_supported(adapter)) {
2436 if (num_vec > num_roce_vec) {
2437 adapter->num_msix_vec = num_vec - num_roce_vec;
2438 adapter->num_msix_roce_vec =
2439 num_vec - adapter->num_msix_vec;
2440 } else {
2441 adapter->num_msix_vec = num_vec;
2442 adapter->num_msix_roce_vec = 0;
2443 }
2444 } else
2445 adapter->num_msix_vec = num_vec;
2446 dev_info(dev, "enabled %d MSI-x vector(s)\n", adapter->num_msix_vec);
2447 return 0;
2448 }
2449
2450 static inline int be_msix_vec_get(struct be_adapter *adapter,
2451 struct be_eq_obj *eqo)
2452 {
2453 return adapter->msix_entries[eqo->idx].vector;
2454 }
2455
2456 static int be_msix_register(struct be_adapter *adapter)
2457 {
2458 struct net_device *netdev = adapter->netdev;
2459 struct be_eq_obj *eqo;
2460 int status, i, vec;
2461
2462 for_all_evt_queues(adapter, eqo, i) {
2463 sprintf(eqo->desc, "%s-q%d", netdev->name, i);
2464 vec = be_msix_vec_get(adapter, eqo);
2465 status = request_irq(vec, be_msix, 0, eqo->desc, eqo);
2466 if (status)
2467 goto err_msix;
2468 }
2469
2470 return 0;
2471 err_msix:
2472 for (i--, eqo = &adapter->eq_obj[i]; i >= 0; i--, eqo--)
2473 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2474 dev_warn(&adapter->pdev->dev, "MSIX Request IRQ failed - err %d\n",
2475 status);
2476 be_msix_disable(adapter);
2477 return status;
2478 }
2479
2480 static int be_irq_register(struct be_adapter *adapter)
2481 {
2482 struct net_device *netdev = adapter->netdev;
2483 int status;
2484
2485 if (msix_enabled(adapter)) {
2486 status = be_msix_register(adapter);
2487 if (status == 0)
2488 goto done;
2489 /* INTx is not supported for VF */
2490 if (!be_physfn(adapter))
2491 return status;
2492 }
2493
2494 /* INTx: only the first EQ is used */
2495 netdev->irq = adapter->pdev->irq;
2496 status = request_irq(netdev->irq, be_intx, IRQF_SHARED, netdev->name,
2497 &adapter->eq_obj[0]);
2498 if (status) {
2499 dev_err(&adapter->pdev->dev,
2500 "INTx request IRQ failed - err %d\n", status);
2501 return status;
2502 }
2503 done:
2504 adapter->isr_registered = true;
2505 return 0;
2506 }
2507
2508 static void be_irq_unregister(struct be_adapter *adapter)
2509 {
2510 struct net_device *netdev = adapter->netdev;
2511 struct be_eq_obj *eqo;
2512 int i;
2513
2514 if (!adapter->isr_registered)
2515 return;
2516
2517 /* INTx */
2518 if (!msix_enabled(adapter)) {
2519 free_irq(netdev->irq, &adapter->eq_obj[0]);
2520 goto done;
2521 }
2522
2523 /* MSIx */
2524 for_all_evt_queues(adapter, eqo, i)
2525 free_irq(be_msix_vec_get(adapter, eqo), eqo);
2526
2527 done:
2528 adapter->isr_registered = false;
2529 }
2530
2531 static void be_rx_qs_destroy(struct be_adapter *adapter)
2532 {
2533 struct be_queue_info *q;
2534 struct be_rx_obj *rxo;
2535 int i;
2536
2537 for_all_rx_queues(adapter, rxo, i) {
2538 q = &rxo->q;
2539 if (q->created) {
2540 be_cmd_rxq_destroy(adapter, q);
2541 be_rx_cq_clean(rxo);
2542 }
2543 be_queue_free(adapter, q);
2544 }
2545 }
2546
2547 static int be_close(struct net_device *netdev)
2548 {
2549 struct be_adapter *adapter = netdev_priv(netdev);
2550 struct be_eq_obj *eqo;
2551 int i;
2552
2553 be_roce_dev_close(adapter);
2554
2555 if (adapter->flags & BE_FLAGS_NAPI_ENABLED) {
2556 for_all_evt_queues(adapter, eqo, i)
2557 napi_disable(&eqo->napi);
2558 adapter->flags &= ~BE_FLAGS_NAPI_ENABLED;
2559 }
2560
2561 be_async_mcc_disable(adapter);
2562
2563 /* Wait for all pending tx completions to arrive so that
2564 * all tx skbs are freed.
2565 */
2566 be_tx_compl_clean(adapter);
2567 netif_tx_disable(netdev);
2568
2569 be_rx_qs_destroy(adapter);
2570
2571 for_all_evt_queues(adapter, eqo, i) {
2572 if (msix_enabled(adapter))
2573 synchronize_irq(be_msix_vec_get(adapter, eqo));
2574 else
2575 synchronize_irq(netdev->irq);
2576 be_eq_clean(eqo);
2577 }
2578
2579 be_irq_unregister(adapter);
2580
2581 return 0;
2582 }
2583
2584 static int be_rx_qs_create(struct be_adapter *adapter)
2585 {
2586 struct be_rx_obj *rxo;
2587 int rc, i, j;
2588 u8 rsstable[128];
2589
2590 for_all_rx_queues(adapter, rxo, i) {
2591 rc = be_queue_alloc(adapter, &rxo->q, RX_Q_LEN,
2592 sizeof(struct be_eth_rx_d));
2593 if (rc)
2594 return rc;
2595 }
2596
2597 /* The FW would like the default RXQ to be created first */
2598 rxo = default_rxo(adapter);
2599 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id, rx_frag_size,
2600 adapter->if_handle, false, &rxo->rss_id);
2601 if (rc)
2602 return rc;
2603
2604 for_all_rss_queues(adapter, rxo, i) {
2605 rc = be_cmd_rxq_create(adapter, &rxo->q, rxo->cq.id,
2606 rx_frag_size, adapter->if_handle,
2607 true, &rxo->rss_id);
2608 if (rc)
2609 return rc;
2610 }
2611
2612 if (be_multi_rxq(adapter)) {
2613 for (j = 0; j < 128; j += adapter->num_rx_qs - 1) {
2614 for_all_rss_queues(adapter, rxo, i) {
2615 if ((j + i) >= 128)
2616 break;
2617 rsstable[j + i] = rxo->rss_id;
2618 }
2619 }
2620 adapter->rss_flags = RSS_ENABLE_TCP_IPV4 | RSS_ENABLE_IPV4 |
2621 RSS_ENABLE_TCP_IPV6 | RSS_ENABLE_IPV6;
2622
2623 if (!BEx_chip(adapter))
2624 adapter->rss_flags |= RSS_ENABLE_UDP_IPV4 |
2625 RSS_ENABLE_UDP_IPV6;
2626
2627 rc = be_cmd_rss_config(adapter, rsstable, adapter->rss_flags,
2628 128);
2629 if (rc) {
2630 adapter->rss_flags = 0;
2631 return rc;
2632 }
2633 }
2634
2635 /* First time posting */
2636 for_all_rx_queues(adapter, rxo, i)
2637 be_post_rx_frags(rxo, GFP_KERNEL);
2638 return 0;
2639 }
2640
2641 static int be_open(struct net_device *netdev)
2642 {
2643 struct be_adapter *adapter = netdev_priv(netdev);
2644 struct be_eq_obj *eqo;
2645 struct be_rx_obj *rxo;
2646 struct be_tx_obj *txo;
2647 u8 link_status;
2648 int status, i;
2649
2650 status = be_rx_qs_create(adapter);
2651 if (status)
2652 goto err;
2653
2654 status = be_irq_register(adapter);
2655 if (status)
2656 goto err;
2657
2658 for_all_rx_queues(adapter, rxo, i)
2659 be_cq_notify(adapter, rxo->cq.id, true, 0);
2660
2661 for_all_tx_queues(adapter, txo, i)
2662 be_cq_notify(adapter, txo->cq.id, true, 0);
2663
2664 be_async_mcc_enable(adapter);
2665
2666 for_all_evt_queues(adapter, eqo, i) {
2667 napi_enable(&eqo->napi);
2668 be_eq_notify(adapter, eqo->q.id, true, false, 0);
2669 }
2670 adapter->flags |= BE_FLAGS_NAPI_ENABLED;
2671
2672 status = be_cmd_link_status_query(adapter, NULL, &link_status, 0);
2673 if (!status)
2674 be_link_status_update(adapter, link_status);
2675
2676 netif_tx_start_all_queues(netdev);
2677 be_roce_dev_open(adapter);
2678 return 0;
2679 err:
2680 be_close(adapter->netdev);
2681 return -EIO;
2682 }
2683
2684 static int be_setup_wol(struct be_adapter *adapter, bool enable)
2685 {
2686 struct be_dma_mem cmd;
2687 int status = 0;
2688 u8 mac[ETH_ALEN];
2689
2690 memset(mac, 0, ETH_ALEN);
2691
2692 cmd.size = sizeof(struct be_cmd_req_acpi_wol_magic_config);
2693 cmd.va = dma_alloc_coherent(&adapter->pdev->dev, cmd.size, &cmd.dma,
2694 GFP_KERNEL | __GFP_ZERO);
2695 if (cmd.va == NULL)
2696 return -1;
2697
2698 if (enable) {
2699 status = pci_write_config_dword(adapter->pdev,
2700 PCICFG_PM_CONTROL_OFFSET, PCICFG_PM_CONTROL_MASK);
2701 if (status) {
2702 dev_err(&adapter->pdev->dev,
2703 "Could not enable Wake-on-lan\n");
2704 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va,
2705 cmd.dma);
2706 return status;
2707 }
2708 status = be_cmd_enable_magic_wol(adapter,
2709 adapter->netdev->dev_addr, &cmd);
2710 pci_enable_wake(adapter->pdev, PCI_D3hot, 1);
2711 pci_enable_wake(adapter->pdev, PCI_D3cold, 1);
2712 } else {
2713 status = be_cmd_enable_magic_wol(adapter, mac, &cmd);
2714 pci_enable_wake(adapter->pdev, PCI_D3hot, 0);
2715 pci_enable_wake(adapter->pdev, PCI_D3cold, 0);
2716 }
2717
2718 dma_free_coherent(&adapter->pdev->dev, cmd.size, cmd.va, cmd.dma);
2719 return status;
2720 }
2721
2722 /*
2723 * Generate a seed MAC address from the PF MAC Address using jhash.
2724 * MAC Address for VFs are assigned incrementally starting from the seed.
2725 * These addresses are programmed in the ASIC by the PF and the VF driver
2726 * queries for the MAC address during its probe.
2727 */
2728 static int be_vf_eth_addr_config(struct be_adapter *adapter)
2729 {
2730 u32 vf;
2731 int status = 0;
2732 u8 mac[ETH_ALEN];
2733 struct be_vf_cfg *vf_cfg;
2734
2735 be_vf_eth_addr_generate(adapter, mac);
2736
2737 for_all_vfs(adapter, vf_cfg, vf) {
2738 if (lancer_chip(adapter)) {
2739 status = be_cmd_set_mac_list(adapter, mac, 1, vf + 1);
2740 } else {
2741 status = be_cmd_pmac_add(adapter, mac,
2742 vf_cfg->if_handle,
2743 &vf_cfg->pmac_id, vf + 1);
2744 }
2745
2746 if (status)
2747 dev_err(&adapter->pdev->dev,
2748 "Mac address assignment failed for VF %d\n", vf);
2749 else
2750 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2751
2752 mac[5] += 1;
2753 }
2754 return status;
2755 }
2756
2757 static int be_vfs_mac_query(struct be_adapter *adapter)
2758 {
2759 int status, vf;
2760 u8 mac[ETH_ALEN];
2761 struct be_vf_cfg *vf_cfg;
2762 bool active;
2763
2764 for_all_vfs(adapter, vf_cfg, vf) {
2765 be_cmd_get_mac_from_list(adapter, mac, &active,
2766 &vf_cfg->pmac_id, 0);
2767
2768 status = be_cmd_mac_addr_query(adapter, mac, false,
2769 vf_cfg->if_handle, 0);
2770 if (status)
2771 return status;
2772 memcpy(vf_cfg->mac_addr, mac, ETH_ALEN);
2773 }
2774 return 0;
2775 }
2776
2777 static void be_vf_clear(struct be_adapter *adapter)
2778 {
2779 struct be_vf_cfg *vf_cfg;
2780 u32 vf;
2781
2782 if (pci_vfs_assigned(adapter->pdev)) {
2783 dev_warn(&adapter->pdev->dev,
2784 "VFs are assigned to VMs: not disabling VFs\n");
2785 goto done;
2786 }
2787
2788 pci_disable_sriov(adapter->pdev);
2789
2790 for_all_vfs(adapter, vf_cfg, vf) {
2791 if (lancer_chip(adapter))
2792 be_cmd_set_mac_list(adapter, NULL, 0, vf + 1);
2793 else
2794 be_cmd_pmac_del(adapter, vf_cfg->if_handle,
2795 vf_cfg->pmac_id, vf + 1);
2796
2797 be_cmd_if_destroy(adapter, vf_cfg->if_handle, vf + 1);
2798 }
2799 done:
2800 kfree(adapter->vf_cfg);
2801 adapter->num_vfs = 0;
2802 }
2803
2804 static int be_clear(struct be_adapter *adapter)
2805 {
2806 int i = 1;
2807
2808 if (adapter->flags & BE_FLAGS_WORKER_SCHEDULED) {
2809 cancel_delayed_work_sync(&adapter->work);
2810 adapter->flags &= ~BE_FLAGS_WORKER_SCHEDULED;
2811 }
2812
2813 if (sriov_enabled(adapter))
2814 be_vf_clear(adapter);
2815
2816 for (; adapter->uc_macs > 0; adapter->uc_macs--, i++)
2817 be_cmd_pmac_del(adapter, adapter->if_handle,
2818 adapter->pmac_id[i], 0);
2819
2820 be_cmd_if_destroy(adapter, adapter->if_handle, 0);
2821
2822 be_mcc_queues_destroy(adapter);
2823 be_rx_cqs_destroy(adapter);
2824 be_tx_queues_destroy(adapter);
2825 be_evt_queues_destroy(adapter);
2826
2827 kfree(adapter->pmac_id);
2828 adapter->pmac_id = NULL;
2829
2830 be_msix_disable(adapter);
2831 return 0;
2832 }
2833
2834 static int be_vfs_if_create(struct be_adapter *adapter)
2835 {
2836 struct be_vf_cfg *vf_cfg;
2837 u32 cap_flags, en_flags, vf;
2838 int status;
2839
2840 cap_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
2841 BE_IF_FLAGS_MULTICAST;
2842
2843 for_all_vfs(adapter, vf_cfg, vf) {
2844 if (!BE3_chip(adapter))
2845 be_cmd_get_profile_config(adapter, &cap_flags,
2846 NULL, vf + 1);
2847
2848 /* If a FW profile exists, then cap_flags are updated */
2849 en_flags = cap_flags & (BE_IF_FLAGS_UNTAGGED |
2850 BE_IF_FLAGS_BROADCAST | BE_IF_FLAGS_MULTICAST);
2851 status = be_cmd_if_create(adapter, cap_flags, en_flags,
2852 &vf_cfg->if_handle, vf + 1);
2853 if (status)
2854 goto err;
2855 }
2856 err:
2857 return status;
2858 }
2859
2860 static int be_vf_setup_init(struct be_adapter *adapter)
2861 {
2862 struct be_vf_cfg *vf_cfg;
2863 int vf;
2864
2865 adapter->vf_cfg = kcalloc(adapter->num_vfs, sizeof(*vf_cfg),
2866 GFP_KERNEL);
2867 if (!adapter->vf_cfg)
2868 return -ENOMEM;
2869
2870 for_all_vfs(adapter, vf_cfg, vf) {
2871 vf_cfg->if_handle = -1;
2872 vf_cfg->pmac_id = -1;
2873 }
2874 return 0;
2875 }
2876
2877 static int be_vf_setup(struct be_adapter *adapter)
2878 {
2879 struct be_vf_cfg *vf_cfg;
2880 u16 def_vlan, lnk_speed;
2881 int status, old_vfs, vf;
2882 struct device *dev = &adapter->pdev->dev;
2883
2884 old_vfs = pci_num_vf(adapter->pdev);
2885 if (old_vfs) {
2886 dev_info(dev, "%d VFs are already enabled\n", old_vfs);
2887 if (old_vfs != num_vfs)
2888 dev_warn(dev, "Ignoring num_vfs=%d setting\n", num_vfs);
2889 adapter->num_vfs = old_vfs;
2890 } else {
2891 if (num_vfs > adapter->dev_num_vfs)
2892 dev_info(dev, "Device supports %d VFs and not %d\n",
2893 adapter->dev_num_vfs, num_vfs);
2894 adapter->num_vfs = min_t(u16, num_vfs, adapter->dev_num_vfs);
2895 if (!adapter->num_vfs)
2896 return 0;
2897 }
2898
2899 status = be_vf_setup_init(adapter);
2900 if (status)
2901 goto err;
2902
2903 if (old_vfs) {
2904 for_all_vfs(adapter, vf_cfg, vf) {
2905 status = be_cmd_get_if_id(adapter, vf_cfg, vf);
2906 if (status)
2907 goto err;
2908 }
2909 } else {
2910 status = be_vfs_if_create(adapter);
2911 if (status)
2912 goto err;
2913 }
2914
2915 if (old_vfs) {
2916 status = be_vfs_mac_query(adapter);
2917 if (status)
2918 goto err;
2919 } else {
2920 status = be_vf_eth_addr_config(adapter);
2921 if (status)
2922 goto err;
2923 }
2924
2925 for_all_vfs(adapter, vf_cfg, vf) {
2926 /* BE3 FW, by default, caps VF TX-rate to 100mbps.
2927 * Allow full available bandwidth
2928 */
2929 if (BE3_chip(adapter) && !old_vfs)
2930 be_cmd_set_qos(adapter, 1000, vf+1);
2931
2932 status = be_cmd_link_status_query(adapter, &lnk_speed,
2933 NULL, vf + 1);
2934 if (!status)
2935 vf_cfg->tx_rate = lnk_speed;
2936
2937 status = be_cmd_get_hsw_config(adapter, &def_vlan,
2938 vf + 1, vf_cfg->if_handle);
2939 if (status)
2940 goto err;
2941 vf_cfg->def_vid = def_vlan;
2942
2943 be_cmd_enable_vf(adapter, vf + 1);
2944 }
2945
2946 if (!old_vfs) {
2947 status = pci_enable_sriov(adapter->pdev, adapter->num_vfs);
2948 if (status) {
2949 dev_err(dev, "SRIOV enable failed\n");
2950 adapter->num_vfs = 0;
2951 goto err;
2952 }
2953 }
2954 return 0;
2955 err:
2956 dev_err(dev, "VF setup failed\n");
2957 be_vf_clear(adapter);
2958 return status;
2959 }
2960
2961 static void be_setup_init(struct be_adapter *adapter)
2962 {
2963 adapter->vlan_prio_bmap = 0xff;
2964 adapter->phy.link_speed = -1;
2965 adapter->if_handle = -1;
2966 adapter->be3_native = false;
2967 adapter->promiscuous = false;
2968 if (be_physfn(adapter))
2969 adapter->cmd_privileges = MAX_PRIVILEGES;
2970 else
2971 adapter->cmd_privileges = MIN_PRIVILEGES;
2972 }
2973
2974 static int be_get_mac_addr(struct be_adapter *adapter, u8 *mac, u32 if_handle,
2975 bool *active_mac, u32 *pmac_id)
2976 {
2977 int status = 0;
2978
2979 if (!is_zero_ether_addr(adapter->netdev->perm_addr)) {
2980 memcpy(mac, adapter->netdev->dev_addr, ETH_ALEN);
2981 if (!lancer_chip(adapter) && !be_physfn(adapter))
2982 *active_mac = true;
2983 else
2984 *active_mac = false;
2985
2986 return status;
2987 }
2988
2989 if (lancer_chip(adapter)) {
2990 status = be_cmd_get_mac_from_list(adapter, mac,
2991 active_mac, pmac_id, 0);
2992 if (*active_mac) {
2993 status = be_cmd_mac_addr_query(adapter, mac, false,
2994 if_handle, *pmac_id);
2995 }
2996 } else if (be_physfn(adapter)) {
2997 /* For BE3, for PF get permanent MAC */
2998 status = be_cmd_mac_addr_query(adapter, mac, true, 0, 0);
2999 *active_mac = false;
3000 } else {
3001 /* For BE3, for VF get soft MAC assigned by PF*/
3002 status = be_cmd_mac_addr_query(adapter, mac, false,
3003 if_handle, 0);
3004 *active_mac = true;
3005 }
3006 return status;
3007 }
3008
3009 static void be_get_resources(struct be_adapter *adapter)
3010 {
3011 u16 dev_num_vfs;
3012 int pos, status;
3013 bool profile_present = false;
3014 u16 txq_count = 0;
3015
3016 if (!BEx_chip(adapter)) {
3017 status = be_cmd_get_func_config(adapter);
3018 if (!status)
3019 profile_present = true;
3020 } else if (BE3_chip(adapter) && be_physfn(adapter)) {
3021 be_cmd_get_profile_config(adapter, NULL, &txq_count, 0);
3022 }
3023
3024 if (profile_present) {
3025 /* Sanity fixes for Lancer */
3026 adapter->max_pmac_cnt = min_t(u16, adapter->max_pmac_cnt,
3027 BE_UC_PMAC_COUNT);
3028 adapter->max_vlans = min_t(u16, adapter->max_vlans,
3029 BE_NUM_VLANS_SUPPORTED);
3030 adapter->max_mcast_mac = min_t(u16, adapter->max_mcast_mac,
3031 BE_MAX_MC);
3032 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3033 MAX_TX_QS);
3034 adapter->max_rss_queues = min_t(u16, adapter->max_rss_queues,
3035 BE3_MAX_RSS_QS);
3036 adapter->max_event_queues = min_t(u16,
3037 adapter->max_event_queues,
3038 BE3_MAX_RSS_QS);
3039
3040 if (adapter->max_rss_queues &&
3041 adapter->max_rss_queues == adapter->max_rx_queues)
3042 adapter->max_rss_queues -= 1;
3043
3044 if (adapter->max_event_queues < adapter->max_rss_queues)
3045 adapter->max_rss_queues = adapter->max_event_queues;
3046
3047 } else {
3048 if (be_physfn(adapter))
3049 adapter->max_pmac_cnt = BE_UC_PMAC_COUNT;
3050 else
3051 adapter->max_pmac_cnt = BE_VF_UC_PMAC_COUNT;
3052
3053 if (adapter->function_mode & FLEX10_MODE)
3054 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED/8;
3055 else
3056 adapter->max_vlans = BE_NUM_VLANS_SUPPORTED;
3057
3058 adapter->max_mcast_mac = BE_MAX_MC;
3059 adapter->max_tx_queues = txq_count ? txq_count : MAX_TX_QS;
3060 adapter->max_tx_queues = min_t(u16, adapter->max_tx_queues,
3061 MAX_TX_QS);
3062 adapter->max_rss_queues = (adapter->be3_native) ?
3063 BE3_MAX_RSS_QS : BE2_MAX_RSS_QS;
3064 adapter->max_event_queues = BE3_MAX_RSS_QS;
3065
3066 adapter->if_cap_flags = BE_IF_FLAGS_UNTAGGED |
3067 BE_IF_FLAGS_BROADCAST |
3068 BE_IF_FLAGS_MULTICAST |
3069 BE_IF_FLAGS_PASS_L3L4_ERRORS |
3070 BE_IF_FLAGS_MCAST_PROMISCUOUS |
3071 BE_IF_FLAGS_VLAN_PROMISCUOUS |
3072 BE_IF_FLAGS_PROMISCUOUS;
3073
3074 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3075 adapter->if_cap_flags |= BE_IF_FLAGS_RSS;
3076 }
3077
3078 pos = pci_find_ext_capability(adapter->pdev, PCI_EXT_CAP_ID_SRIOV);
3079 if (pos) {
3080 pci_read_config_word(adapter->pdev, pos + PCI_SRIOV_TOTAL_VF,
3081 &dev_num_vfs);
3082 if (BE3_chip(adapter))
3083 dev_num_vfs = min_t(u16, dev_num_vfs, MAX_VFS);
3084 adapter->dev_num_vfs = dev_num_vfs;
3085 }
3086 }
3087
3088 /* Routine to query per function resource limits */
3089 static int be_get_config(struct be_adapter *adapter)
3090 {
3091 int status;
3092
3093 status = be_cmd_query_fw_cfg(adapter, &adapter->port_num,
3094 &adapter->function_mode,
3095 &adapter->function_caps,
3096 &adapter->asic_rev);
3097 if (status)
3098 goto err;
3099
3100 be_get_resources(adapter);
3101
3102 /* primary mac needs 1 pmac entry */
3103 adapter->pmac_id = kcalloc(adapter->max_pmac_cnt + 1,
3104 sizeof(u32), GFP_KERNEL);
3105 if (!adapter->pmac_id) {
3106 status = -ENOMEM;
3107 goto err;
3108 }
3109
3110 err:
3111 return status;
3112 }
3113
3114 static int be_setup(struct be_adapter *adapter)
3115 {
3116 struct device *dev = &adapter->pdev->dev;
3117 u32 en_flags;
3118 u32 tx_fc, rx_fc;
3119 int status;
3120 u8 mac[ETH_ALEN];
3121 bool active_mac;
3122
3123 be_setup_init(adapter);
3124
3125 if (!lancer_chip(adapter))
3126 be_cmd_req_native_mode(adapter);
3127
3128 status = be_get_config(adapter);
3129 if (status)
3130 goto err;
3131
3132 status = be_msix_enable(adapter);
3133 if (status)
3134 goto err;
3135
3136 status = be_evt_queues_create(adapter);
3137 if (status)
3138 goto err;
3139
3140 status = be_tx_cqs_create(adapter);
3141 if (status)
3142 goto err;
3143
3144 status = be_rx_cqs_create(adapter);
3145 if (status)
3146 goto err;
3147
3148 status = be_mcc_queues_create(adapter);
3149 if (status)
3150 goto err;
3151
3152 be_cmd_get_fn_privileges(adapter, &adapter->cmd_privileges, 0);
3153 /* In UMC mode FW does not return right privileges.
3154 * Override with correct privilege equivalent to PF.
3155 */
3156 if (be_is_mc(adapter))
3157 adapter->cmd_privileges = MAX_PRIVILEGES;
3158
3159 en_flags = BE_IF_FLAGS_UNTAGGED | BE_IF_FLAGS_BROADCAST |
3160 BE_IF_FLAGS_MULTICAST | BE_IF_FLAGS_PASS_L3L4_ERRORS;
3161
3162 if (adapter->function_caps & BE_FUNCTION_CAPS_RSS)
3163 en_flags |= BE_IF_FLAGS_RSS;
3164
3165 en_flags = en_flags & adapter->if_cap_flags;
3166
3167 status = be_cmd_if_create(adapter, adapter->if_cap_flags, en_flags,
3168 &adapter->if_handle, 0);
3169 if (status != 0)
3170 goto err;
3171
3172 memset(mac, 0, ETH_ALEN);
3173 active_mac = false;
3174 status = be_get_mac_addr(adapter, mac, adapter->if_handle,
3175 &active_mac, &adapter->pmac_id[0]);
3176 if (status != 0)
3177 goto err;
3178
3179 if (!active_mac) {
3180 status = be_cmd_pmac_add(adapter, mac, adapter->if_handle,
3181 &adapter->pmac_id[0], 0);
3182 if (status != 0)
3183 goto err;
3184 }
3185
3186 if (is_zero_ether_addr(adapter->netdev->dev_addr)) {
3187 memcpy(adapter->netdev->dev_addr, mac, ETH_ALEN);
3188 memcpy(adapter->netdev->perm_addr, mac, ETH_ALEN);
3189 }
3190
3191 status = be_tx_qs_create(adapter);
3192 if (status)
3193 goto err;
3194
3195 be_cmd_get_fw_ver(adapter, adapter->fw_ver, adapter->fw_on_flash);
3196
3197 if (adapter->vlans_added)
3198 be_vid_config(adapter);
3199
3200 be_set_rx_mode(adapter->netdev);
3201
3202 be_cmd_get_flow_control(adapter, &tx_fc, &rx_fc);
3203
3204 if (rx_fc != adapter->rx_fc || tx_fc != adapter->tx_fc)
3205 be_cmd_set_flow_control(adapter, adapter->tx_fc,
3206 adapter->rx_fc);
3207
3208 if (be_physfn(adapter)) {
3209 if (adapter->dev_num_vfs)
3210 be_vf_setup(adapter);
3211 else
3212 dev_warn(dev, "device doesn't support SRIOV\n");
3213 }
3214
3215 status = be_cmd_get_phy_info(adapter);
3216 if (!status && be_pause_supported(adapter))
3217 adapter->phy.fc_autoneg = 1;
3218
3219 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
3220 adapter->flags |= BE_FLAGS_WORKER_SCHEDULED;
3221 return 0;
3222 err:
3223 be_clear(adapter);
3224 return status;
3225 }
3226
3227 #ifdef CONFIG_NET_POLL_CONTROLLER
3228 static void be_netpoll(struct net_device *netdev)
3229 {
3230 struct be_adapter *adapter = netdev_priv(netdev);
3231 struct be_eq_obj *eqo;
3232 int i;
3233
3234 for_all_evt_queues(adapter, eqo, i) {
3235 be_eq_notify(eqo->adapter, eqo->q.id, false, true, 0);
3236 napi_schedule(&eqo->napi);
3237 }
3238
3239 return;
3240 }
3241 #endif
3242
3243 #define FW_FILE_HDR_SIGN "ServerEngines Corp. "
3244 char flash_cookie[2][16] = {"*** SE FLAS", "H DIRECTORY *** "};
3245
3246 static bool be_flash_redboot(struct be_adapter *adapter,
3247 const u8 *p, u32 img_start, int image_size,
3248 int hdr_size)
3249 {
3250 u32 crc_offset;
3251 u8 flashed_crc[4];
3252 int status;
3253
3254 crc_offset = hdr_size + img_start + image_size - 4;
3255
3256 p += crc_offset;
3257
3258 status = be_cmd_get_flash_crc(adapter, flashed_crc,
3259 (image_size - 4));
3260 if (status) {
3261 dev_err(&adapter->pdev->dev,
3262 "could not get crc from flash, not flashing redboot\n");
3263 return false;
3264 }
3265
3266 /*update redboot only if crc does not match*/
3267 if (!memcmp(flashed_crc, p, 4))
3268 return false;
3269 else
3270 return true;
3271 }
3272
3273 static bool phy_flashing_required(struct be_adapter *adapter)
3274 {
3275 return (adapter->phy.phy_type == TN_8022 &&
3276 adapter->phy.interface_type == PHY_TYPE_BASET_10GB);
3277 }
3278
3279 static bool is_comp_in_ufi(struct be_adapter *adapter,
3280 struct flash_section_info *fsec, int type)
3281 {
3282 int i = 0, img_type = 0;
3283 struct flash_section_info_g2 *fsec_g2 = NULL;
3284
3285 if (BE2_chip(adapter))
3286 fsec_g2 = (struct flash_section_info_g2 *)fsec;
3287
3288 for (i = 0; i < MAX_FLASH_COMP; i++) {
3289 if (fsec_g2)
3290 img_type = le32_to_cpu(fsec_g2->fsec_entry[i].type);
3291 else
3292 img_type = le32_to_cpu(fsec->fsec_entry[i].type);
3293
3294 if (img_type == type)
3295 return true;
3296 }
3297 return false;
3298
3299 }
3300
3301 struct flash_section_info *get_fsec_info(struct be_adapter *adapter,
3302 int header_size,
3303 const struct firmware *fw)
3304 {
3305 struct flash_section_info *fsec = NULL;
3306 const u8 *p = fw->data;
3307
3308 p += header_size;
3309 while (p < (fw->data + fw->size)) {
3310 fsec = (struct flash_section_info *)p;
3311 if (!memcmp(flash_cookie, fsec->cookie, sizeof(flash_cookie)))
3312 return fsec;
3313 p += 32;
3314 }
3315 return NULL;
3316 }
3317
3318 static int be_flash(struct be_adapter *adapter, const u8 *img,
3319 struct be_dma_mem *flash_cmd, int optype, int img_size)
3320 {
3321 u32 total_bytes = 0, flash_op, num_bytes = 0;
3322 int status = 0;
3323 struct be_cmd_write_flashrom *req = flash_cmd->va;
3324
3325 total_bytes = img_size;
3326 while (total_bytes) {
3327 num_bytes = min_t(u32, 32*1024, total_bytes);
3328
3329 total_bytes -= num_bytes;
3330
3331 if (!total_bytes) {
3332 if (optype == OPTYPE_PHY_FW)
3333 flash_op = FLASHROM_OPER_PHY_FLASH;
3334 else
3335 flash_op = FLASHROM_OPER_FLASH;
3336 } else {
3337 if (optype == OPTYPE_PHY_FW)
3338 flash_op = FLASHROM_OPER_PHY_SAVE;
3339 else
3340 flash_op = FLASHROM_OPER_SAVE;
3341 }
3342
3343 memcpy(req->data_buf, img, num_bytes);
3344 img += num_bytes;
3345 status = be_cmd_write_flashrom(adapter, flash_cmd, optype,
3346 flash_op, num_bytes);
3347 if (status) {
3348 if (status == ILLEGAL_IOCTL_REQ &&
3349 optype == OPTYPE_PHY_FW)
3350 break;
3351 dev_err(&adapter->pdev->dev,
3352 "cmd to write to flash rom failed.\n");
3353 return status;
3354 }
3355 }
3356 return 0;
3357 }
3358
3359 /* For BE2, BE3 and BE3-R */
3360 static int be_flash_BEx(struct be_adapter *adapter,
3361 const struct firmware *fw,
3362 struct be_dma_mem *flash_cmd,
3363 int num_of_images)
3364
3365 {
3366 int status = 0, i, filehdr_size = 0;
3367 int img_hdrs_size = (num_of_images * sizeof(struct image_hdr));
3368 const u8 *p = fw->data;
3369 const struct flash_comp *pflashcomp;
3370 int num_comp, redboot;
3371 struct flash_section_info *fsec = NULL;
3372
3373 struct flash_comp gen3_flash_types[] = {
3374 { FLASH_iSCSI_PRIMARY_IMAGE_START_g3, OPTYPE_ISCSI_ACTIVE,
3375 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_iSCSI},
3376 { FLASH_REDBOOT_START_g3, OPTYPE_REDBOOT,
3377 FLASH_REDBOOT_IMAGE_MAX_SIZE_g3, IMAGE_BOOT_CODE},
3378 { FLASH_iSCSI_BIOS_START_g3, OPTYPE_BIOS,
3379 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_ISCSI},
3380 { FLASH_PXE_BIOS_START_g3, OPTYPE_PXE_BIOS,
3381 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_PXE},
3382 { FLASH_FCoE_BIOS_START_g3, OPTYPE_FCOE_BIOS,
3383 FLASH_BIOS_IMAGE_MAX_SIZE_g3, IMAGE_OPTION_ROM_FCoE},
3384 { FLASH_iSCSI_BACKUP_IMAGE_START_g3, OPTYPE_ISCSI_BACKUP,
3385 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_iSCSI},
3386 { FLASH_FCoE_PRIMARY_IMAGE_START_g3, OPTYPE_FCOE_FW_ACTIVE,
3387 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_FCoE},
3388 { FLASH_FCoE_BACKUP_IMAGE_START_g3, OPTYPE_FCOE_FW_BACKUP,
3389 FLASH_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_BACKUP_FCoE},
3390 { FLASH_NCSI_START_g3, OPTYPE_NCSI_FW,
3391 FLASH_NCSI_IMAGE_MAX_SIZE_g3, IMAGE_NCSI},
3392 { FLASH_PHY_FW_START_g3, OPTYPE_PHY_FW,
3393 FLASH_PHY_FW_IMAGE_MAX_SIZE_g3, IMAGE_FIRMWARE_PHY}
3394 };
3395
3396 struct flash_comp gen2_flash_types[] = {
3397 { FLASH_iSCSI_PRIMARY_IMAGE_START_g2, OPTYPE_ISCSI_ACTIVE,
3398 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_iSCSI},
3399 { FLASH_REDBOOT_START_g2, OPTYPE_REDBOOT,
3400 FLASH_REDBOOT_IMAGE_MAX_SIZE_g2, IMAGE_BOOT_CODE},
3401 { FLASH_iSCSI_BIOS_START_g2, OPTYPE_BIOS,
3402 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_ISCSI},
3403 { FLASH_PXE_BIOS_START_g2, OPTYPE_PXE_BIOS,
3404 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_PXE},
3405 { FLASH_FCoE_BIOS_START_g2, OPTYPE_FCOE_BIOS,
3406 FLASH_BIOS_IMAGE_MAX_SIZE_g2, IMAGE_OPTION_ROM_FCoE},
3407 { FLASH_iSCSI_BACKUP_IMAGE_START_g2, OPTYPE_ISCSI_BACKUP,
3408 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_iSCSI},
3409 { FLASH_FCoE_PRIMARY_IMAGE_START_g2, OPTYPE_FCOE_FW_ACTIVE,
3410 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_FCoE},
3411 { FLASH_FCoE_BACKUP_IMAGE_START_g2, OPTYPE_FCOE_FW_BACKUP,
3412 FLASH_IMAGE_MAX_SIZE_g2, IMAGE_FIRMWARE_BACKUP_FCoE}
3413 };
3414
3415 if (BE3_chip(adapter)) {
3416 pflashcomp = gen3_flash_types;
3417 filehdr_size = sizeof(struct flash_file_hdr_g3);
3418 num_comp = ARRAY_SIZE(gen3_flash_types);
3419 } else {
3420 pflashcomp = gen2_flash_types;
3421 filehdr_size = sizeof(struct flash_file_hdr_g2);
3422 num_comp = ARRAY_SIZE(gen2_flash_types);
3423 }
3424
3425 /* Get flash section info*/
3426 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3427 if (!fsec) {
3428 dev_err(&adapter->pdev->dev,
3429 "Invalid Cookie. UFI corrupted ?\n");
3430 return -1;
3431 }
3432 for (i = 0; i < num_comp; i++) {
3433 if (!is_comp_in_ufi(adapter, fsec, pflashcomp[i].img_type))
3434 continue;
3435
3436 if ((pflashcomp[i].optype == OPTYPE_NCSI_FW) &&
3437 memcmp(adapter->fw_ver, "3.102.148.0", 11) < 0)
3438 continue;
3439
3440 if (pflashcomp[i].optype == OPTYPE_PHY_FW &&
3441 !phy_flashing_required(adapter))
3442 continue;
3443
3444 if (pflashcomp[i].optype == OPTYPE_REDBOOT) {
3445 redboot = be_flash_redboot(adapter, fw->data,
3446 pflashcomp[i].offset, pflashcomp[i].size,
3447 filehdr_size + img_hdrs_size);
3448 if (!redboot)
3449 continue;
3450 }
3451
3452 p = fw->data;
3453 p += filehdr_size + pflashcomp[i].offset + img_hdrs_size;
3454 if (p + pflashcomp[i].size > fw->data + fw->size)
3455 return -1;
3456
3457 status = be_flash(adapter, p, flash_cmd, pflashcomp[i].optype,
3458 pflashcomp[i].size);
3459 if (status) {
3460 dev_err(&adapter->pdev->dev,
3461 "Flashing section type %d failed.\n",
3462 pflashcomp[i].img_type);
3463 return status;
3464 }
3465 }
3466 return 0;
3467 }
3468
3469 static int be_flash_skyhawk(struct be_adapter *adapter,
3470 const struct firmware *fw,
3471 struct be_dma_mem *flash_cmd, int num_of_images)
3472 {
3473 int status = 0, i, filehdr_size = 0;
3474 int img_offset, img_size, img_optype, redboot;
3475 int img_hdrs_size = num_of_images * sizeof(struct image_hdr);
3476 const u8 *p = fw->data;
3477 struct flash_section_info *fsec = NULL;
3478
3479 filehdr_size = sizeof(struct flash_file_hdr_g3);
3480 fsec = get_fsec_info(adapter, filehdr_size + img_hdrs_size, fw);
3481 if (!fsec) {
3482 dev_err(&adapter->pdev->dev,
3483 "Invalid Cookie. UFI corrupted ?\n");
3484 return -1;
3485 }
3486
3487 for (i = 0; i < le32_to_cpu(fsec->fsec_hdr.num_images); i++) {
3488 img_offset = le32_to_cpu(fsec->fsec_entry[i].offset);
3489 img_size = le32_to_cpu(fsec->fsec_entry[i].pad_size);
3490
3491 switch (le32_to_cpu(fsec->fsec_entry[i].type)) {
3492 case IMAGE_FIRMWARE_iSCSI:
3493 img_optype = OPTYPE_ISCSI_ACTIVE;
3494 break;
3495 case IMAGE_BOOT_CODE:
3496 img_optype = OPTYPE_REDBOOT;
3497 break;
3498 case IMAGE_OPTION_ROM_ISCSI:
3499 img_optype = OPTYPE_BIOS;
3500 break;
3501 case IMAGE_OPTION_ROM_PXE:
3502 img_optype = OPTYPE_PXE_BIOS;
3503 break;
3504 case IMAGE_OPTION_ROM_FCoE:
3505 img_optype = OPTYPE_FCOE_BIOS;
3506 break;
3507 case IMAGE_FIRMWARE_BACKUP_iSCSI:
3508 img_optype = OPTYPE_ISCSI_BACKUP;
3509 break;
3510 case IMAGE_NCSI:
3511 img_optype = OPTYPE_NCSI_FW;
3512 break;
3513 default:
3514 continue;
3515 }
3516
3517 if (img_optype == OPTYPE_REDBOOT) {
3518 redboot = be_flash_redboot(adapter, fw->data,
3519 img_offset, img_size,
3520 filehdr_size + img_hdrs_size);
3521 if (!redboot)
3522 continue;
3523 }
3524
3525 p = fw->data;
3526 p += filehdr_size + img_offset + img_hdrs_size;
3527 if (p + img_size > fw->data + fw->size)
3528 return -1;
3529
3530 status = be_flash(adapter, p, flash_cmd, img_optype, img_size);
3531 if (status) {
3532 dev_err(&adapter->pdev->dev,
3533 "Flashing section type %d failed.\n",
3534 fsec->fsec_entry[i].type);
3535 return status;
3536 }
3537 }
3538 return 0;
3539 }
3540
3541 static int lancer_fw_download(struct be_adapter *adapter,
3542 const struct firmware *fw)
3543 {
3544 #define LANCER_FW_DOWNLOAD_CHUNK (32 * 1024)
3545 #define LANCER_FW_DOWNLOAD_LOCATION "/prg"
3546 struct be_dma_mem flash_cmd;
3547 const u8 *data_ptr = NULL;
3548 u8 *dest_image_ptr = NULL;
3549 size_t image_size = 0;
3550 u32 chunk_size = 0;
3551 u32 data_written = 0;
3552 u32 offset = 0;
3553 int status = 0;
3554 u8 add_status = 0;
3555 u8 change_status;
3556
3557 if (!IS_ALIGNED(fw->size, sizeof(u32))) {
3558 dev_err(&adapter->pdev->dev,
3559 "FW Image not properly aligned. "
3560 "Length must be 4 byte aligned.\n");
3561 status = -EINVAL;
3562 goto lancer_fw_exit;
3563 }
3564
3565 flash_cmd.size = sizeof(struct lancer_cmd_req_write_object)
3566 + LANCER_FW_DOWNLOAD_CHUNK;
3567 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3568 &flash_cmd.dma, GFP_KERNEL);
3569 if (!flash_cmd.va) {
3570 status = -ENOMEM;
3571 goto lancer_fw_exit;
3572 }
3573
3574 dest_image_ptr = flash_cmd.va +
3575 sizeof(struct lancer_cmd_req_write_object);
3576 image_size = fw->size;
3577 data_ptr = fw->data;
3578
3579 while (image_size) {
3580 chunk_size = min_t(u32, image_size, LANCER_FW_DOWNLOAD_CHUNK);
3581
3582 /* Copy the image chunk content. */
3583 memcpy(dest_image_ptr, data_ptr, chunk_size);
3584
3585 status = lancer_cmd_write_object(adapter, &flash_cmd,
3586 chunk_size, offset,
3587 LANCER_FW_DOWNLOAD_LOCATION,
3588 &data_written, &change_status,
3589 &add_status);
3590 if (status)
3591 break;
3592
3593 offset += data_written;
3594 data_ptr += data_written;
3595 image_size -= data_written;
3596 }
3597
3598 if (!status) {
3599 /* Commit the FW written */
3600 status = lancer_cmd_write_object(adapter, &flash_cmd,
3601 0, offset,
3602 LANCER_FW_DOWNLOAD_LOCATION,
3603 &data_written, &change_status,
3604 &add_status);
3605 }
3606
3607 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3608 flash_cmd.dma);
3609 if (status) {
3610 dev_err(&adapter->pdev->dev,
3611 "Firmware load error. "
3612 "Status code: 0x%x Additional Status: 0x%x\n",
3613 status, add_status);
3614 goto lancer_fw_exit;
3615 }
3616
3617 if (change_status == LANCER_FW_RESET_NEEDED) {
3618 status = lancer_physdev_ctrl(adapter,
3619 PHYSDEV_CONTROL_FW_RESET_MASK);
3620 if (status) {
3621 dev_err(&adapter->pdev->dev,
3622 "Adapter busy for FW reset.\n"
3623 "New FW will not be active.\n");
3624 goto lancer_fw_exit;
3625 }
3626 } else if (change_status != LANCER_NO_RESET_NEEDED) {
3627 dev_err(&adapter->pdev->dev,
3628 "System reboot required for new FW"
3629 " to be active\n");
3630 }
3631
3632 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3633 lancer_fw_exit:
3634 return status;
3635 }
3636
3637 #define UFI_TYPE2 2
3638 #define UFI_TYPE3 3
3639 #define UFI_TYPE3R 10
3640 #define UFI_TYPE4 4
3641 static int be_get_ufi_type(struct be_adapter *adapter,
3642 struct flash_file_hdr_g3 *fhdr)
3643 {
3644 if (fhdr == NULL)
3645 goto be_get_ufi_exit;
3646
3647 if (skyhawk_chip(adapter) && fhdr->build[0] == '4')
3648 return UFI_TYPE4;
3649 else if (BE3_chip(adapter) && fhdr->build[0] == '3') {
3650 if (fhdr->asic_type_rev == 0x10)
3651 return UFI_TYPE3R;
3652 else
3653 return UFI_TYPE3;
3654 } else if (BE2_chip(adapter) && fhdr->build[0] == '2')
3655 return UFI_TYPE2;
3656
3657 be_get_ufi_exit:
3658 dev_err(&adapter->pdev->dev,
3659 "UFI and Interface are not compatible for flashing\n");
3660 return -1;
3661 }
3662
3663 static int be_fw_download(struct be_adapter *adapter, const struct firmware* fw)
3664 {
3665 struct flash_file_hdr_g3 *fhdr3;
3666 struct image_hdr *img_hdr_ptr = NULL;
3667 struct be_dma_mem flash_cmd;
3668 const u8 *p;
3669 int status = 0, i = 0, num_imgs = 0, ufi_type = 0;
3670
3671 flash_cmd.size = sizeof(struct be_cmd_write_flashrom);
3672 flash_cmd.va = dma_alloc_coherent(&adapter->pdev->dev, flash_cmd.size,
3673 &flash_cmd.dma, GFP_KERNEL);
3674 if (!flash_cmd.va) {
3675 status = -ENOMEM;
3676 goto be_fw_exit;
3677 }
3678
3679 p = fw->data;
3680 fhdr3 = (struct flash_file_hdr_g3 *)p;
3681
3682 ufi_type = be_get_ufi_type(adapter, fhdr3);
3683
3684 num_imgs = le32_to_cpu(fhdr3->num_imgs);
3685 for (i = 0; i < num_imgs; i++) {
3686 img_hdr_ptr = (struct image_hdr *)(fw->data +
3687 (sizeof(struct flash_file_hdr_g3) +
3688 i * sizeof(struct image_hdr)));
3689 if (le32_to_cpu(img_hdr_ptr->imageid) == 1) {
3690 switch (ufi_type) {
3691 case UFI_TYPE4:
3692 status = be_flash_skyhawk(adapter, fw,
3693 &flash_cmd, num_imgs);
3694 break;
3695 case UFI_TYPE3R:
3696 status = be_flash_BEx(adapter, fw, &flash_cmd,
3697 num_imgs);
3698 break;
3699 case UFI_TYPE3:
3700 /* Do not flash this ufi on BE3-R cards */
3701 if (adapter->asic_rev < 0x10)
3702 status = be_flash_BEx(adapter, fw,
3703 &flash_cmd,
3704 num_imgs);
3705 else {
3706 status = -1;
3707 dev_err(&adapter->pdev->dev,
3708 "Can't load BE3 UFI on BE3R\n");
3709 }
3710 }
3711 }
3712 }
3713
3714 if (ufi_type == UFI_TYPE2)
3715 status = be_flash_BEx(adapter, fw, &flash_cmd, 0);
3716 else if (ufi_type == -1)
3717 status = -1;
3718
3719 dma_free_coherent(&adapter->pdev->dev, flash_cmd.size, flash_cmd.va,
3720 flash_cmd.dma);
3721 if (status) {
3722 dev_err(&adapter->pdev->dev, "Firmware load error\n");
3723 goto be_fw_exit;
3724 }
3725
3726 dev_info(&adapter->pdev->dev, "Firmware flashed successfully\n");
3727
3728 be_fw_exit:
3729 return status;
3730 }
3731
3732 int be_load_fw(struct be_adapter *adapter, u8 *fw_file)
3733 {
3734 const struct firmware *fw;
3735 int status;
3736
3737 if (!netif_running(adapter->netdev)) {
3738 dev_err(&adapter->pdev->dev,
3739 "Firmware load not allowed (interface is down)\n");
3740 return -1;
3741 }
3742
3743 status = request_firmware(&fw, fw_file, &adapter->pdev->dev);
3744 if (status)
3745 goto fw_exit;
3746
3747 dev_info(&adapter->pdev->dev, "Flashing firmware file %s\n", fw_file);
3748
3749 if (lancer_chip(adapter))
3750 status = lancer_fw_download(adapter, fw);
3751 else
3752 status = be_fw_download(adapter, fw);
3753
3754 if (!status)
3755 be_cmd_get_fw_ver(adapter, adapter->fw_ver,
3756 adapter->fw_on_flash);
3757
3758 fw_exit:
3759 release_firmware(fw);
3760 return status;
3761 }
3762
3763 static const struct net_device_ops be_netdev_ops = {
3764 .ndo_open = be_open,
3765 .ndo_stop = be_close,
3766 .ndo_start_xmit = be_xmit,
3767 .ndo_set_rx_mode = be_set_rx_mode,
3768 .ndo_set_mac_address = be_mac_addr_set,
3769 .ndo_change_mtu = be_change_mtu,
3770 .ndo_get_stats64 = be_get_stats64,
3771 .ndo_validate_addr = eth_validate_addr,
3772 .ndo_vlan_rx_add_vid = be_vlan_add_vid,
3773 .ndo_vlan_rx_kill_vid = be_vlan_rem_vid,
3774 .ndo_set_vf_mac = be_set_vf_mac,
3775 .ndo_set_vf_vlan = be_set_vf_vlan,
3776 .ndo_set_vf_tx_rate = be_set_vf_tx_rate,
3777 .ndo_get_vf_config = be_get_vf_config,
3778 #ifdef CONFIG_NET_POLL_CONTROLLER
3779 .ndo_poll_controller = be_netpoll,
3780 #endif
3781 };
3782
3783 static void be_netdev_init(struct net_device *netdev)
3784 {
3785 struct be_adapter *adapter = netdev_priv(netdev);
3786 struct be_eq_obj *eqo;
3787 int i;
3788
3789 netdev->hw_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3790 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
3791 NETIF_F_HW_VLAN_CTAG_TX;
3792 if (be_multi_rxq(adapter))
3793 netdev->hw_features |= NETIF_F_RXHASH;
3794
3795 netdev->features |= netdev->hw_features |
3796 NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HW_VLAN_CTAG_FILTER;
3797
3798 netdev->vlan_features |= NETIF_F_SG | NETIF_F_TSO | NETIF_F_TSO6 |
3799 NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM;
3800
3801 netdev->priv_flags |= IFF_UNICAST_FLT;
3802
3803 netdev->flags |= IFF_MULTICAST;
3804
3805 netif_set_gso_max_size(netdev, 65535 - ETH_HLEN);
3806
3807 netdev->netdev_ops = &be_netdev_ops;
3808
3809 SET_ETHTOOL_OPS(netdev, &be_ethtool_ops);
3810
3811 for_all_evt_queues(adapter, eqo, i)
3812 netif_napi_add(netdev, &eqo->napi, be_poll, BE_NAPI_WEIGHT);
3813 }
3814
3815 static void be_unmap_pci_bars(struct be_adapter *adapter)
3816 {
3817 if (adapter->csr)
3818 pci_iounmap(adapter->pdev, adapter->csr);
3819 if (adapter->db)
3820 pci_iounmap(adapter->pdev, adapter->db);
3821 }
3822
3823 static int db_bar(struct be_adapter *adapter)
3824 {
3825 if (lancer_chip(adapter) || !be_physfn(adapter))
3826 return 0;
3827 else
3828 return 4;
3829 }
3830
3831 static int be_roce_map_pci_bars(struct be_adapter *adapter)
3832 {
3833 if (skyhawk_chip(adapter)) {
3834 adapter->roce_db.size = 4096;
3835 adapter->roce_db.io_addr = pci_resource_start(adapter->pdev,
3836 db_bar(adapter));
3837 adapter->roce_db.total_size = pci_resource_len(adapter->pdev,
3838 db_bar(adapter));
3839 }
3840 return 0;
3841 }
3842
3843 static int be_map_pci_bars(struct be_adapter *adapter)
3844 {
3845 u8 __iomem *addr;
3846 u32 sli_intf;
3847
3848 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3849 adapter->if_type = (sli_intf & SLI_INTF_IF_TYPE_MASK) >>
3850 SLI_INTF_IF_TYPE_SHIFT;
3851
3852 if (BEx_chip(adapter) && be_physfn(adapter)) {
3853 adapter->csr = pci_iomap(adapter->pdev, 2, 0);
3854 if (adapter->csr == NULL)
3855 return -ENOMEM;
3856 }
3857
3858 addr = pci_iomap(adapter->pdev, db_bar(adapter), 0);
3859 if (addr == NULL)
3860 goto pci_map_err;
3861 adapter->db = addr;
3862
3863 be_roce_map_pci_bars(adapter);
3864 return 0;
3865
3866 pci_map_err:
3867 be_unmap_pci_bars(adapter);
3868 return -ENOMEM;
3869 }
3870
3871 static void be_ctrl_cleanup(struct be_adapter *adapter)
3872 {
3873 struct be_dma_mem *mem = &adapter->mbox_mem_alloced;
3874
3875 be_unmap_pci_bars(adapter);
3876
3877 if (mem->va)
3878 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3879 mem->dma);
3880
3881 mem = &adapter->rx_filter;
3882 if (mem->va)
3883 dma_free_coherent(&adapter->pdev->dev, mem->size, mem->va,
3884 mem->dma);
3885 }
3886
3887 static int be_ctrl_init(struct be_adapter *adapter)
3888 {
3889 struct be_dma_mem *mbox_mem_alloc = &adapter->mbox_mem_alloced;
3890 struct be_dma_mem *mbox_mem_align = &adapter->mbox_mem;
3891 struct be_dma_mem *rx_filter = &adapter->rx_filter;
3892 u32 sli_intf;
3893 int status;
3894
3895 pci_read_config_dword(adapter->pdev, SLI_INTF_REG_OFFSET, &sli_intf);
3896 adapter->sli_family = (sli_intf & SLI_INTF_FAMILY_MASK) >>
3897 SLI_INTF_FAMILY_SHIFT;
3898 adapter->virtfn = (sli_intf & SLI_INTF_FT_MASK) ? 1 : 0;
3899
3900 status = be_map_pci_bars(adapter);
3901 if (status)
3902 goto done;
3903
3904 mbox_mem_alloc->size = sizeof(struct be_mcc_mailbox) + 16;
3905 mbox_mem_alloc->va = dma_alloc_coherent(&adapter->pdev->dev,
3906 mbox_mem_alloc->size,
3907 &mbox_mem_alloc->dma,
3908 GFP_KERNEL);
3909 if (!mbox_mem_alloc->va) {
3910 status = -ENOMEM;
3911 goto unmap_pci_bars;
3912 }
3913 mbox_mem_align->size = sizeof(struct be_mcc_mailbox);
3914 mbox_mem_align->va = PTR_ALIGN(mbox_mem_alloc->va, 16);
3915 mbox_mem_align->dma = PTR_ALIGN(mbox_mem_alloc->dma, 16);
3916 memset(mbox_mem_align->va, 0, sizeof(struct be_mcc_mailbox));
3917
3918 rx_filter->size = sizeof(struct be_cmd_req_rx_filter);
3919 rx_filter->va = dma_alloc_coherent(&adapter->pdev->dev, rx_filter->size,
3920 &rx_filter->dma,
3921 GFP_KERNEL | __GFP_ZERO);
3922 if (rx_filter->va == NULL) {
3923 status = -ENOMEM;
3924 goto free_mbox;
3925 }
3926
3927 mutex_init(&adapter->mbox_lock);
3928 spin_lock_init(&adapter->mcc_lock);
3929 spin_lock_init(&adapter->mcc_cq_lock);
3930
3931 init_completion(&adapter->flash_compl);
3932 pci_save_state(adapter->pdev);
3933 return 0;
3934
3935 free_mbox:
3936 dma_free_coherent(&adapter->pdev->dev, mbox_mem_alloc->size,
3937 mbox_mem_alloc->va, mbox_mem_alloc->dma);
3938
3939 unmap_pci_bars:
3940 be_unmap_pci_bars(adapter);
3941
3942 done:
3943 return status;
3944 }
3945
3946 static void be_stats_cleanup(struct be_adapter *adapter)
3947 {
3948 struct be_dma_mem *cmd = &adapter->stats_cmd;
3949
3950 if (cmd->va)
3951 dma_free_coherent(&adapter->pdev->dev, cmd->size,
3952 cmd->va, cmd->dma);
3953 }
3954
3955 static int be_stats_init(struct be_adapter *adapter)
3956 {
3957 struct be_dma_mem *cmd = &adapter->stats_cmd;
3958
3959 if (lancer_chip(adapter))
3960 cmd->size = sizeof(struct lancer_cmd_req_pport_stats);
3961 else if (BE2_chip(adapter))
3962 cmd->size = sizeof(struct be_cmd_req_get_stats_v0);
3963 else
3964 /* BE3 and Skyhawk */
3965 cmd->size = sizeof(struct be_cmd_req_get_stats_v1);
3966
3967 cmd->va = dma_alloc_coherent(&adapter->pdev->dev, cmd->size, &cmd->dma,
3968 GFP_KERNEL | __GFP_ZERO);
3969 if (cmd->va == NULL)
3970 return -1;
3971 return 0;
3972 }
3973
3974 static void be_remove(struct pci_dev *pdev)
3975 {
3976 struct be_adapter *adapter = pci_get_drvdata(pdev);
3977
3978 if (!adapter)
3979 return;
3980
3981 be_roce_dev_remove(adapter);
3982 be_intr_set(adapter, false);
3983
3984 cancel_delayed_work_sync(&adapter->func_recovery_work);
3985
3986 unregister_netdev(adapter->netdev);
3987
3988 be_clear(adapter);
3989
3990 /* tell fw we're done with firing cmds */
3991 be_cmd_fw_clean(adapter);
3992
3993 be_stats_cleanup(adapter);
3994
3995 be_ctrl_cleanup(adapter);
3996
3997 pci_disable_pcie_error_reporting(pdev);
3998
3999 pci_set_drvdata(pdev, NULL);
4000 pci_release_regions(pdev);
4001 pci_disable_device(pdev);
4002
4003 free_netdev(adapter->netdev);
4004 }
4005
4006 bool be_is_wol_supported(struct be_adapter *adapter)
4007 {
4008 return ((adapter->wol_cap & BE_WOL_CAP) &&
4009 !be_is_wol_excluded(adapter)) ? true : false;
4010 }
4011
4012 u32 be_get_fw_log_level(struct be_adapter *adapter)
4013 {
4014 struct be_dma_mem extfat_cmd;
4015 struct be_fat_conf_params *cfgs;
4016 int status;
4017 u32 level = 0;
4018 int j;
4019
4020 if (lancer_chip(adapter))
4021 return 0;
4022
4023 memset(&extfat_cmd, 0, sizeof(struct be_dma_mem));
4024 extfat_cmd.size = sizeof(struct be_cmd_resp_get_ext_fat_caps);
4025 extfat_cmd.va = pci_alloc_consistent(adapter->pdev, extfat_cmd.size,
4026 &extfat_cmd.dma);
4027
4028 if (!extfat_cmd.va) {
4029 dev_err(&adapter->pdev->dev, "%s: Memory allocation failure\n",
4030 __func__);
4031 goto err;
4032 }
4033
4034 status = be_cmd_get_ext_fat_capabilites(adapter, &extfat_cmd);
4035 if (!status) {
4036 cfgs = (struct be_fat_conf_params *)(extfat_cmd.va +
4037 sizeof(struct be_cmd_resp_hdr));
4038 for (j = 0; j < le32_to_cpu(cfgs->module[0].num_modes); j++) {
4039 if (cfgs->module[0].trace_lvl[j].mode == MODE_UART)
4040 level = cfgs->module[0].trace_lvl[j].dbg_lvl;
4041 }
4042 }
4043 pci_free_consistent(adapter->pdev, extfat_cmd.size, extfat_cmd.va,
4044 extfat_cmd.dma);
4045 err:
4046 return level;
4047 }
4048
4049 static int be_get_initial_config(struct be_adapter *adapter)
4050 {
4051 int status;
4052 u32 level;
4053
4054 status = be_cmd_get_cntl_attributes(adapter);
4055 if (status)
4056 return status;
4057
4058 status = be_cmd_get_acpi_wol_cap(adapter);
4059 if (status) {
4060 /* in case of a failure to get wol capabillities
4061 * check the exclusion list to determine WOL capability */
4062 if (!be_is_wol_excluded(adapter))
4063 adapter->wol_cap |= BE_WOL_CAP;
4064 }
4065
4066 if (be_is_wol_supported(adapter))
4067 adapter->wol = true;
4068
4069 /* Must be a power of 2 or else MODULO will BUG_ON */
4070 adapter->be_get_temp_freq = 64;
4071
4072 level = be_get_fw_log_level(adapter);
4073 adapter->msg_enable = level <= FW_LOG_LEVEL_DEFAULT ? NETIF_MSG_HW : 0;
4074
4075 return 0;
4076 }
4077
4078 static int lancer_recover_func(struct be_adapter *adapter)
4079 {
4080 struct device *dev = &adapter->pdev->dev;
4081 int status;
4082
4083 status = lancer_test_and_set_rdy_state(adapter);
4084 if (status)
4085 goto err;
4086
4087 if (netif_running(adapter->netdev))
4088 be_close(adapter->netdev);
4089
4090 be_clear(adapter);
4091
4092 be_clear_all_error(adapter);
4093
4094 status = be_setup(adapter);
4095 if (status)
4096 goto err;
4097
4098 if (netif_running(adapter->netdev)) {
4099 status = be_open(adapter->netdev);
4100 if (status)
4101 goto err;
4102 }
4103
4104 dev_err(dev, "Error recovery successful\n");
4105 return 0;
4106 err:
4107 if (status == -EAGAIN)
4108 dev_err(dev, "Waiting for resource provisioning\n");
4109 else
4110 dev_err(dev, "Error recovery failed\n");
4111
4112 return status;
4113 }
4114
4115 static void be_func_recovery_task(struct work_struct *work)
4116 {
4117 struct be_adapter *adapter =
4118 container_of(work, struct be_adapter, func_recovery_work.work);
4119 int status = 0;
4120
4121 be_detect_error(adapter);
4122
4123 if (adapter->hw_error && lancer_chip(adapter)) {
4124
4125 rtnl_lock();
4126 netif_device_detach(adapter->netdev);
4127 rtnl_unlock();
4128
4129 status = lancer_recover_func(adapter);
4130 if (!status)
4131 netif_device_attach(adapter->netdev);
4132 }
4133
4134 /* In Lancer, for all errors other than provisioning error (-EAGAIN),
4135 * no need to attempt further recovery.
4136 */
4137 if (!status || status == -EAGAIN)
4138 schedule_delayed_work(&adapter->func_recovery_work,
4139 msecs_to_jiffies(1000));
4140 }
4141
4142 static void be_worker(struct work_struct *work)
4143 {
4144 struct be_adapter *adapter =
4145 container_of(work, struct be_adapter, work.work);
4146 struct be_rx_obj *rxo;
4147 struct be_eq_obj *eqo;
4148 int i;
4149
4150 /* when interrupts are not yet enabled, just reap any pending
4151 * mcc completions */
4152 if (!netif_running(adapter->netdev)) {
4153 local_bh_disable();
4154 be_process_mcc(adapter);
4155 local_bh_enable();
4156 goto reschedule;
4157 }
4158
4159 if (!adapter->stats_cmd_sent) {
4160 if (lancer_chip(adapter))
4161 lancer_cmd_get_pport_stats(adapter,
4162 &adapter->stats_cmd);
4163 else
4164 be_cmd_get_stats(adapter, &adapter->stats_cmd);
4165 }
4166
4167 if (MODULO(adapter->work_counter, adapter->be_get_temp_freq) == 0)
4168 be_cmd_get_die_temperature(adapter);
4169
4170 for_all_rx_queues(adapter, rxo, i) {
4171 if (rxo->rx_post_starved) {
4172 rxo->rx_post_starved = false;
4173 be_post_rx_frags(rxo, GFP_KERNEL);
4174 }
4175 }
4176
4177 for_all_evt_queues(adapter, eqo, i)
4178 be_eqd_update(adapter, eqo);
4179
4180 reschedule:
4181 adapter->work_counter++;
4182 schedule_delayed_work(&adapter->work, msecs_to_jiffies(1000));
4183 }
4184
4185 /* If any VFs are already enabled don't FLR the PF */
4186 static bool be_reset_required(struct be_adapter *adapter)
4187 {
4188 return pci_num_vf(adapter->pdev) ? false : true;
4189 }
4190
4191 static char *mc_name(struct be_adapter *adapter)
4192 {
4193 if (adapter->function_mode & FLEX10_MODE)
4194 return "FLEX10";
4195 else if (adapter->function_mode & VNIC_MODE)
4196 return "vNIC";
4197 else if (adapter->function_mode & UMC_ENABLED)
4198 return "UMC";
4199 else
4200 return "";
4201 }
4202
4203 static inline char *func_name(struct be_adapter *adapter)
4204 {
4205 return be_physfn(adapter) ? "PF" : "VF";
4206 }
4207
4208 static int be_probe(struct pci_dev *pdev, const struct pci_device_id *pdev_id)
4209 {
4210 int status = 0;
4211 struct be_adapter *adapter;
4212 struct net_device *netdev;
4213 char port_name;
4214
4215 status = pci_enable_device(pdev);
4216 if (status)
4217 goto do_none;
4218
4219 status = pci_request_regions(pdev, DRV_NAME);
4220 if (status)
4221 goto disable_dev;
4222 pci_set_master(pdev);
4223
4224 netdev = alloc_etherdev_mqs(sizeof(*adapter), MAX_TX_QS, MAX_RX_QS);
4225 if (netdev == NULL) {
4226 status = -ENOMEM;
4227 goto rel_reg;
4228 }
4229 adapter = netdev_priv(netdev);
4230 adapter->pdev = pdev;
4231 pci_set_drvdata(pdev, adapter);
4232 adapter->netdev = netdev;
4233 SET_NETDEV_DEV(netdev, &pdev->dev);
4234
4235 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(64));
4236 if (!status) {
4237 status = dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64));
4238 if (status < 0) {
4239 dev_err(&pdev->dev, "dma_set_coherent_mask failed\n");
4240 goto free_netdev;
4241 }
4242 netdev->features |= NETIF_F_HIGHDMA;
4243 } else {
4244 status = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
4245 if (!status)
4246 status = dma_set_coherent_mask(&pdev->dev,
4247 DMA_BIT_MASK(32));
4248 if (status) {
4249 dev_err(&pdev->dev, "Could not set PCI DMA Mask\n");
4250 goto free_netdev;
4251 }
4252 }
4253
4254 status = pci_enable_pcie_error_reporting(pdev);
4255 if (status)
4256 dev_err(&pdev->dev, "Could not use PCIe error reporting\n");
4257
4258 status = be_ctrl_init(adapter);
4259 if (status)
4260 goto free_netdev;
4261
4262 /* sync up with fw's ready state */
4263 if (be_physfn(adapter)) {
4264 status = be_fw_wait_ready(adapter);
4265 if (status)
4266 goto ctrl_clean;
4267 }
4268
4269 if (be_reset_required(adapter)) {
4270 status = be_cmd_reset_function(adapter);
4271 if (status)
4272 goto ctrl_clean;
4273
4274 /* Wait for interrupts to quiesce after an FLR */
4275 msleep(100);
4276 }
4277
4278 /* Allow interrupts for other ULPs running on NIC function */
4279 be_intr_set(adapter, true);
4280
4281 /* tell fw we're ready to fire cmds */
4282 status = be_cmd_fw_init(adapter);
4283 if (status)
4284 goto ctrl_clean;
4285
4286 status = be_stats_init(adapter);
4287 if (status)
4288 goto ctrl_clean;
4289
4290 status = be_get_initial_config(adapter);
4291 if (status)
4292 goto stats_clean;
4293
4294 INIT_DELAYED_WORK(&adapter->work, be_worker);
4295 INIT_DELAYED_WORK(&adapter->func_recovery_work, be_func_recovery_task);
4296 adapter->rx_fc = adapter->tx_fc = true;
4297
4298 status = be_setup(adapter);
4299 if (status)
4300 goto stats_clean;
4301
4302 be_netdev_init(netdev);
4303 status = register_netdev(netdev);
4304 if (status != 0)
4305 goto unsetup;
4306
4307 be_roce_dev_add(adapter);
4308
4309 schedule_delayed_work(&adapter->func_recovery_work,
4310 msecs_to_jiffies(1000));
4311
4312 be_cmd_query_port_name(adapter, &port_name);
4313
4314 dev_info(&pdev->dev, "%s: %s %s port %c\n", nic_name(pdev),
4315 func_name(adapter), mc_name(adapter), port_name);
4316
4317 return 0;
4318
4319 unsetup:
4320 be_clear(adapter);
4321 stats_clean:
4322 be_stats_cleanup(adapter);
4323 ctrl_clean:
4324 be_ctrl_cleanup(adapter);
4325 free_netdev:
4326 free_netdev(netdev);
4327 pci_set_drvdata(pdev, NULL);
4328 rel_reg:
4329 pci_release_regions(pdev);
4330 disable_dev:
4331 pci_disable_device(pdev);
4332 do_none:
4333 dev_err(&pdev->dev, "%s initialization failed\n", nic_name(pdev));
4334 return status;
4335 }
4336
4337 static int be_suspend(struct pci_dev *pdev, pm_message_t state)
4338 {
4339 struct be_adapter *adapter = pci_get_drvdata(pdev);
4340 struct net_device *netdev = adapter->netdev;
4341
4342 if (adapter->wol)
4343 be_setup_wol(adapter, true);
4344
4345 cancel_delayed_work_sync(&adapter->func_recovery_work);
4346
4347 netif_device_detach(netdev);
4348 if (netif_running(netdev)) {
4349 rtnl_lock();
4350 be_close(netdev);
4351 rtnl_unlock();
4352 }
4353 be_clear(adapter);
4354
4355 pci_save_state(pdev);
4356 pci_disable_device(pdev);
4357 pci_set_power_state(pdev, pci_choose_state(pdev, state));
4358 return 0;
4359 }
4360
4361 static int be_resume(struct pci_dev *pdev)
4362 {
4363 int status = 0;
4364 struct be_adapter *adapter = pci_get_drvdata(pdev);
4365 struct net_device *netdev = adapter->netdev;
4366
4367 netif_device_detach(netdev);
4368
4369 status = pci_enable_device(pdev);
4370 if (status)
4371 return status;
4372
4373 pci_set_power_state(pdev, PCI_D0);
4374 pci_restore_state(pdev);
4375
4376 /* tell fw we're ready to fire cmds */
4377 status = be_cmd_fw_init(adapter);
4378 if (status)
4379 return status;
4380
4381 be_setup(adapter);
4382 if (netif_running(netdev)) {
4383 rtnl_lock();
4384 be_open(netdev);
4385 rtnl_unlock();
4386 }
4387
4388 schedule_delayed_work(&adapter->func_recovery_work,
4389 msecs_to_jiffies(1000));
4390 netif_device_attach(netdev);
4391
4392 if (adapter->wol)
4393 be_setup_wol(adapter, false);
4394
4395 return 0;
4396 }
4397
4398 /*
4399 * An FLR will stop BE from DMAing any data.
4400 */
4401 static void be_shutdown(struct pci_dev *pdev)
4402 {
4403 struct be_adapter *adapter = pci_get_drvdata(pdev);
4404
4405 if (!adapter)
4406 return;
4407
4408 cancel_delayed_work_sync(&adapter->work);
4409 cancel_delayed_work_sync(&adapter->func_recovery_work);
4410
4411 netif_device_detach(adapter->netdev);
4412
4413 be_cmd_reset_function(adapter);
4414
4415 pci_disable_device(pdev);
4416 }
4417
4418 static pci_ers_result_t be_eeh_err_detected(struct pci_dev *pdev,
4419 pci_channel_state_t state)
4420 {
4421 struct be_adapter *adapter = pci_get_drvdata(pdev);
4422 struct net_device *netdev = adapter->netdev;
4423
4424 dev_err(&adapter->pdev->dev, "EEH error detected\n");
4425
4426 if (!adapter->eeh_error) {
4427 adapter->eeh_error = true;
4428
4429 cancel_delayed_work_sync(&adapter->func_recovery_work);
4430
4431 rtnl_lock();
4432 netif_device_detach(netdev);
4433 if (netif_running(netdev))
4434 be_close(netdev);
4435 rtnl_unlock();
4436
4437 be_clear(adapter);
4438 }
4439
4440 if (state == pci_channel_io_perm_failure)
4441 return PCI_ERS_RESULT_DISCONNECT;
4442
4443 pci_disable_device(pdev);
4444
4445 /* The error could cause the FW to trigger a flash debug dump.
4446 * Resetting the card while flash dump is in progress
4447 * can cause it not to recover; wait for it to finish.
4448 * Wait only for first function as it is needed only once per
4449 * adapter.
4450 */
4451 if (pdev->devfn == 0)
4452 ssleep(30);
4453
4454 return PCI_ERS_RESULT_NEED_RESET;
4455 }
4456
4457 static pci_ers_result_t be_eeh_reset(struct pci_dev *pdev)
4458 {
4459 struct be_adapter *adapter = pci_get_drvdata(pdev);
4460 int status;
4461
4462 dev_info(&adapter->pdev->dev, "EEH reset\n");
4463
4464 status = pci_enable_device(pdev);
4465 if (status)
4466 return PCI_ERS_RESULT_DISCONNECT;
4467
4468 pci_set_master(pdev);
4469 pci_set_power_state(pdev, PCI_D0);
4470 pci_restore_state(pdev);
4471
4472 /* Check if card is ok and fw is ready */
4473 dev_info(&adapter->pdev->dev,
4474 "Waiting for FW to be ready after EEH reset\n");
4475 status = be_fw_wait_ready(adapter);
4476 if (status)
4477 return PCI_ERS_RESULT_DISCONNECT;
4478
4479 pci_cleanup_aer_uncorrect_error_status(pdev);
4480 be_clear_all_error(adapter);
4481 return PCI_ERS_RESULT_RECOVERED;
4482 }
4483
4484 static void be_eeh_resume(struct pci_dev *pdev)
4485 {
4486 int status = 0;
4487 struct be_adapter *adapter = pci_get_drvdata(pdev);
4488 struct net_device *netdev = adapter->netdev;
4489
4490 dev_info(&adapter->pdev->dev, "EEH resume\n");
4491
4492 pci_save_state(pdev);
4493
4494 status = be_cmd_reset_function(adapter);
4495 if (status)
4496 goto err;
4497
4498 /* tell fw we're ready to fire cmds */
4499 status = be_cmd_fw_init(adapter);
4500 if (status)
4501 goto err;
4502
4503 status = be_setup(adapter);
4504 if (status)
4505 goto err;
4506
4507 if (netif_running(netdev)) {
4508 status = be_open(netdev);
4509 if (status)
4510 goto err;
4511 }
4512
4513 schedule_delayed_work(&adapter->func_recovery_work,
4514 msecs_to_jiffies(1000));
4515 netif_device_attach(netdev);
4516 return;
4517 err:
4518 dev_err(&adapter->pdev->dev, "EEH resume failed\n");
4519 }
4520
4521 static const struct pci_error_handlers be_eeh_handlers = {
4522 .error_detected = be_eeh_err_detected,
4523 .slot_reset = be_eeh_reset,
4524 .resume = be_eeh_resume,
4525 };
4526
4527 static struct pci_driver be_driver = {
4528 .name = DRV_NAME,
4529 .id_table = be_dev_ids,
4530 .probe = be_probe,
4531 .remove = be_remove,
4532 .suspend = be_suspend,
4533 .resume = be_resume,
4534 .shutdown = be_shutdown,
4535 .err_handler = &be_eeh_handlers
4536 };
4537
4538 static int __init be_init_module(void)
4539 {
4540 if (rx_frag_size != 8192 && rx_frag_size != 4096 &&
4541 rx_frag_size != 2048) {
4542 printk(KERN_WARNING DRV_NAME
4543 " : Module param rx_frag_size must be 2048/4096/8192."
4544 " Using 2048\n");
4545 rx_frag_size = 2048;
4546 }
4547
4548 return pci_register_driver(&be_driver);
4549 }
4550 module_init(be_init_module);
4551
4552 static void __exit be_exit_module(void)
4553 {
4554 pci_unregister_driver(&be_driver);
4555 }
4556 module_exit(be_exit_module);
Linux kernel - Deliverables
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