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e712d52b YM |
1 | /* QLogic qede NIC Driver |
2 | * Copyright (c) 2015 QLogic Corporation | |
3 | * | |
4 | * This software is available under the terms of the GNU General Public License | |
5 | * (GPL) Version 2, available from the file COPYING in the main directory of | |
6 | * this source tree. | |
7 | */ | |
8 | ||
9 | #include <linux/module.h> | |
10 | #include <linux/pci.h> | |
11 | #include <linux/version.h> | |
12 | #include <linux/device.h> | |
13 | #include <linux/netdevice.h> | |
14 | #include <linux/etherdevice.h> | |
15 | #include <linux/skbuff.h> | |
16 | #include <linux/errno.h> | |
17 | #include <linux/list.h> | |
18 | #include <linux/string.h> | |
19 | #include <linux/dma-mapping.h> | |
20 | #include <linux/interrupt.h> | |
21 | #include <asm/byteorder.h> | |
22 | #include <asm/param.h> | |
23 | #include <linux/io.h> | |
24 | #include <linux/netdev_features.h> | |
25 | #include <linux/udp.h> | |
26 | #include <linux/tcp.h> | |
27 | #include <net/vxlan.h> | |
28 | #include <linux/ip.h> | |
29 | #include <net/ipv6.h> | |
30 | #include <net/tcp.h> | |
31 | #include <linux/if_ether.h> | |
32 | #include <linux/if_vlan.h> | |
33 | #include <linux/pkt_sched.h> | |
34 | #include <linux/ethtool.h> | |
35 | #include <linux/in.h> | |
36 | #include <linux/random.h> | |
37 | #include <net/ip6_checksum.h> | |
38 | #include <linux/bitops.h> | |
39 | ||
40 | #include "qede.h" | |
41 | ||
5abd7e92 YM |
42 | static char version[] = |
43 | "QLogic FastLinQ 4xxxx Ethernet Driver qede " DRV_MODULE_VERSION "\n"; | |
e712d52b | 44 | |
5abd7e92 | 45 | MODULE_DESCRIPTION("QLogic FastLinQ 4xxxx Ethernet Driver"); |
e712d52b YM |
46 | MODULE_LICENSE("GPL"); |
47 | MODULE_VERSION(DRV_MODULE_VERSION); | |
48 | ||
49 | static uint debug; | |
50 | module_param(debug, uint, 0); | |
51 | MODULE_PARM_DESC(debug, " Default debug msglevel"); | |
52 | ||
53 | static const struct qed_eth_ops *qed_ops; | |
54 | ||
55 | #define CHIP_NUM_57980S_40 0x1634 | |
0e7441d7 | 56 | #define CHIP_NUM_57980S_10 0x1666 |
e712d52b YM |
57 | #define CHIP_NUM_57980S_MF 0x1636 |
58 | #define CHIP_NUM_57980S_100 0x1644 | |
59 | #define CHIP_NUM_57980S_50 0x1654 | |
60 | #define CHIP_NUM_57980S_25 0x1656 | |
61 | ||
62 | #ifndef PCI_DEVICE_ID_NX2_57980E | |
63 | #define PCI_DEVICE_ID_57980S_40 CHIP_NUM_57980S_40 | |
64 | #define PCI_DEVICE_ID_57980S_10 CHIP_NUM_57980S_10 | |
65 | #define PCI_DEVICE_ID_57980S_MF CHIP_NUM_57980S_MF | |
66 | #define PCI_DEVICE_ID_57980S_100 CHIP_NUM_57980S_100 | |
67 | #define PCI_DEVICE_ID_57980S_50 CHIP_NUM_57980S_50 | |
68 | #define PCI_DEVICE_ID_57980S_25 CHIP_NUM_57980S_25 | |
69 | #endif | |
70 | ||
71 | static const struct pci_device_id qede_pci_tbl[] = { | |
72 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_40), 0 }, | |
73 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_10), 0 }, | |
74 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_MF), 0 }, | |
75 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_100), 0 }, | |
76 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_50), 0 }, | |
77 | { PCI_VDEVICE(QLOGIC, PCI_DEVICE_ID_57980S_25), 0 }, | |
78 | { 0 } | |
79 | }; | |
80 | ||
81 | MODULE_DEVICE_TABLE(pci, qede_pci_tbl); | |
82 | ||
83 | static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id); | |
84 | ||
85 | #define TX_TIMEOUT (5 * HZ) | |
86 | ||
87 | static void qede_remove(struct pci_dev *pdev); | |
2950219d YM |
88 | static int qede_alloc_rx_buffer(struct qede_dev *edev, |
89 | struct qede_rx_queue *rxq); | |
a2ec6172 | 90 | static void qede_link_update(void *dev, struct qed_link_output *link); |
e712d52b YM |
91 | |
92 | static struct pci_driver qede_pci_driver = { | |
93 | .name = "qede", | |
94 | .id_table = qede_pci_tbl, | |
95 | .probe = qede_probe, | |
96 | .remove = qede_remove, | |
97 | }; | |
98 | ||
a2ec6172 SK |
99 | static struct qed_eth_cb_ops qede_ll_ops = { |
100 | { | |
101 | .link_update = qede_link_update, | |
102 | }, | |
103 | }; | |
104 | ||
2950219d YM |
105 | static int qede_netdev_event(struct notifier_block *this, unsigned long event, |
106 | void *ptr) | |
107 | { | |
108 | struct net_device *ndev = netdev_notifier_info_to_dev(ptr); | |
109 | struct ethtool_drvinfo drvinfo; | |
110 | struct qede_dev *edev; | |
111 | ||
112 | /* Currently only support name change */ | |
113 | if (event != NETDEV_CHANGENAME) | |
114 | goto done; | |
115 | ||
116 | /* Check whether this is a qede device */ | |
117 | if (!ndev || !ndev->ethtool_ops || !ndev->ethtool_ops->get_drvinfo) | |
118 | goto done; | |
119 | ||
120 | memset(&drvinfo, 0, sizeof(drvinfo)); | |
121 | ndev->ethtool_ops->get_drvinfo(ndev, &drvinfo); | |
122 | if (strcmp(drvinfo.driver, "qede")) | |
123 | goto done; | |
124 | edev = netdev_priv(ndev); | |
125 | ||
126 | /* Notify qed of the name change */ | |
127 | if (!edev->ops || !edev->ops->common) | |
128 | goto done; | |
129 | edev->ops->common->set_id(edev->cdev, edev->ndev->name, | |
130 | "qede"); | |
131 | ||
132 | done: | |
133 | return NOTIFY_DONE; | |
134 | } | |
135 | ||
136 | static struct notifier_block qede_netdev_notifier = { | |
137 | .notifier_call = qede_netdev_event, | |
138 | }; | |
139 | ||
e712d52b YM |
140 | static |
141 | int __init qede_init(void) | |
142 | { | |
143 | int ret; | |
e712d52b YM |
144 | |
145 | pr_notice("qede_init: %s\n", version); | |
146 | ||
95114344 | 147 | qed_ops = qed_get_eth_ops(); |
e712d52b YM |
148 | if (!qed_ops) { |
149 | pr_notice("Failed to get qed ethtool operations\n"); | |
150 | return -EINVAL; | |
151 | } | |
152 | ||
2950219d YM |
153 | /* Must register notifier before pci ops, since we might miss |
154 | * interface rename after pci probe and netdev registeration. | |
155 | */ | |
156 | ret = register_netdevice_notifier(&qede_netdev_notifier); | |
157 | if (ret) { | |
158 | pr_notice("Failed to register netdevice_notifier\n"); | |
159 | qed_put_eth_ops(); | |
160 | return -EINVAL; | |
161 | } | |
162 | ||
e712d52b YM |
163 | ret = pci_register_driver(&qede_pci_driver); |
164 | if (ret) { | |
165 | pr_notice("Failed to register driver\n"); | |
2950219d | 166 | unregister_netdevice_notifier(&qede_netdev_notifier); |
e712d52b YM |
167 | qed_put_eth_ops(); |
168 | return -EINVAL; | |
169 | } | |
170 | ||
171 | return 0; | |
172 | } | |
173 | ||
174 | static void __exit qede_cleanup(void) | |
175 | { | |
176 | pr_notice("qede_cleanup called\n"); | |
177 | ||
2950219d | 178 | unregister_netdevice_notifier(&qede_netdev_notifier); |
e712d52b YM |
179 | pci_unregister_driver(&qede_pci_driver); |
180 | qed_put_eth_ops(); | |
181 | } | |
182 | ||
183 | module_init(qede_init); | |
184 | module_exit(qede_cleanup); | |
185 | ||
2950219d YM |
186 | /* ------------------------------------------------------------------------- |
187 | * START OF FAST-PATH | |
188 | * ------------------------------------------------------------------------- | |
189 | */ | |
190 | ||
191 | /* Unmap the data and free skb */ | |
192 | static int qede_free_tx_pkt(struct qede_dev *edev, | |
193 | struct qede_tx_queue *txq, | |
194 | int *len) | |
195 | { | |
196 | u16 idx = txq->sw_tx_cons & NUM_TX_BDS_MAX; | |
197 | struct sk_buff *skb = txq->sw_tx_ring[idx].skb; | |
198 | struct eth_tx_1st_bd *first_bd; | |
199 | struct eth_tx_bd *tx_data_bd; | |
200 | int bds_consumed = 0; | |
201 | int nbds; | |
202 | bool data_split = txq->sw_tx_ring[idx].flags & QEDE_TSO_SPLIT_BD; | |
203 | int i, split_bd_len = 0; | |
204 | ||
205 | if (unlikely(!skb)) { | |
206 | DP_ERR(edev, | |
207 | "skb is null for txq idx=%d txq->sw_tx_cons=%d txq->sw_tx_prod=%d\n", | |
208 | idx, txq->sw_tx_cons, txq->sw_tx_prod); | |
209 | return -1; | |
210 | } | |
211 | ||
212 | *len = skb->len; | |
213 | ||
214 | first_bd = (struct eth_tx_1st_bd *)qed_chain_consume(&txq->tx_pbl); | |
215 | ||
216 | bds_consumed++; | |
217 | ||
218 | nbds = first_bd->data.nbds; | |
219 | ||
220 | if (data_split) { | |
221 | struct eth_tx_bd *split = (struct eth_tx_bd *) | |
222 | qed_chain_consume(&txq->tx_pbl); | |
223 | split_bd_len = BD_UNMAP_LEN(split); | |
224 | bds_consumed++; | |
225 | } | |
226 | dma_unmap_page(&edev->pdev->dev, BD_UNMAP_ADDR(first_bd), | |
227 | BD_UNMAP_LEN(first_bd) + split_bd_len, DMA_TO_DEVICE); | |
228 | ||
229 | /* Unmap the data of the skb frags */ | |
230 | for (i = 0; i < skb_shinfo(skb)->nr_frags; i++, bds_consumed++) { | |
231 | tx_data_bd = (struct eth_tx_bd *) | |
232 | qed_chain_consume(&txq->tx_pbl); | |
233 | dma_unmap_page(&edev->pdev->dev, BD_UNMAP_ADDR(tx_data_bd), | |
234 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); | |
235 | } | |
236 | ||
237 | while (bds_consumed++ < nbds) | |
238 | qed_chain_consume(&txq->tx_pbl); | |
239 | ||
240 | /* Free skb */ | |
241 | dev_kfree_skb_any(skb); | |
242 | txq->sw_tx_ring[idx].skb = NULL; | |
243 | txq->sw_tx_ring[idx].flags = 0; | |
244 | ||
245 | return 0; | |
246 | } | |
247 | ||
248 | /* Unmap the data and free skb when mapping failed during start_xmit */ | |
249 | static void qede_free_failed_tx_pkt(struct qede_dev *edev, | |
250 | struct qede_tx_queue *txq, | |
251 | struct eth_tx_1st_bd *first_bd, | |
252 | int nbd, | |
253 | bool data_split) | |
254 | { | |
255 | u16 idx = txq->sw_tx_prod & NUM_TX_BDS_MAX; | |
256 | struct sk_buff *skb = txq->sw_tx_ring[idx].skb; | |
257 | struct eth_tx_bd *tx_data_bd; | |
258 | int i, split_bd_len = 0; | |
259 | ||
260 | /* Return prod to its position before this skb was handled */ | |
261 | qed_chain_set_prod(&txq->tx_pbl, | |
262 | le16_to_cpu(txq->tx_db.data.bd_prod), | |
263 | first_bd); | |
264 | ||
265 | first_bd = (struct eth_tx_1st_bd *)qed_chain_produce(&txq->tx_pbl); | |
266 | ||
267 | if (data_split) { | |
268 | struct eth_tx_bd *split = (struct eth_tx_bd *) | |
269 | qed_chain_produce(&txq->tx_pbl); | |
270 | split_bd_len = BD_UNMAP_LEN(split); | |
271 | nbd--; | |
272 | } | |
273 | ||
274 | dma_unmap_page(&edev->pdev->dev, BD_UNMAP_ADDR(first_bd), | |
275 | BD_UNMAP_LEN(first_bd) + split_bd_len, DMA_TO_DEVICE); | |
276 | ||
277 | /* Unmap the data of the skb frags */ | |
278 | for (i = 0; i < nbd; i++) { | |
279 | tx_data_bd = (struct eth_tx_bd *) | |
280 | qed_chain_produce(&txq->tx_pbl); | |
281 | if (tx_data_bd->nbytes) | |
282 | dma_unmap_page(&edev->pdev->dev, | |
283 | BD_UNMAP_ADDR(tx_data_bd), | |
284 | BD_UNMAP_LEN(tx_data_bd), DMA_TO_DEVICE); | |
285 | } | |
286 | ||
287 | /* Return again prod to its position before this skb was handled */ | |
288 | qed_chain_set_prod(&txq->tx_pbl, | |
289 | le16_to_cpu(txq->tx_db.data.bd_prod), | |
290 | first_bd); | |
291 | ||
292 | /* Free skb */ | |
293 | dev_kfree_skb_any(skb); | |
294 | txq->sw_tx_ring[idx].skb = NULL; | |
295 | txq->sw_tx_ring[idx].flags = 0; | |
296 | } | |
297 | ||
298 | static u32 qede_xmit_type(struct qede_dev *edev, | |
299 | struct sk_buff *skb, | |
300 | int *ipv6_ext) | |
301 | { | |
302 | u32 rc = XMIT_L4_CSUM; | |
303 | __be16 l3_proto; | |
304 | ||
305 | if (skb->ip_summed != CHECKSUM_PARTIAL) | |
306 | return XMIT_PLAIN; | |
307 | ||
308 | l3_proto = vlan_get_protocol(skb); | |
309 | if (l3_proto == htons(ETH_P_IPV6) && | |
310 | (ipv6_hdr(skb)->nexthdr == NEXTHDR_IPV6)) | |
311 | *ipv6_ext = 1; | |
312 | ||
313 | if (skb_is_gso(skb)) | |
314 | rc |= XMIT_LSO; | |
315 | ||
316 | return rc; | |
317 | } | |
318 | ||
319 | static void qede_set_params_for_ipv6_ext(struct sk_buff *skb, | |
320 | struct eth_tx_2nd_bd *second_bd, | |
321 | struct eth_tx_3rd_bd *third_bd) | |
322 | { | |
323 | u8 l4_proto; | |
fc48b7a6 | 324 | u16 bd2_bits1 = 0, bd2_bits2 = 0; |
2950219d | 325 | |
fc48b7a6 | 326 | bd2_bits1 |= (1 << ETH_TX_DATA_2ND_BD_IPV6_EXT_SHIFT); |
2950219d | 327 | |
fc48b7a6 | 328 | bd2_bits2 |= ((((u8 *)skb_transport_header(skb) - skb->data) >> 1) & |
2950219d YM |
329 | ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_MASK) |
330 | << ETH_TX_DATA_2ND_BD_L4_HDR_START_OFFSET_W_SHIFT; | |
331 | ||
fc48b7a6 | 332 | bd2_bits1 |= (ETH_L4_PSEUDO_CSUM_CORRECT_LENGTH << |
2950219d YM |
333 | ETH_TX_DATA_2ND_BD_L4_PSEUDO_CSUM_MODE_SHIFT); |
334 | ||
335 | if (vlan_get_protocol(skb) == htons(ETH_P_IPV6)) | |
336 | l4_proto = ipv6_hdr(skb)->nexthdr; | |
337 | else | |
338 | l4_proto = ip_hdr(skb)->protocol; | |
339 | ||
340 | if (l4_proto == IPPROTO_UDP) | |
fc48b7a6 | 341 | bd2_bits1 |= 1 << ETH_TX_DATA_2ND_BD_L4_UDP_SHIFT; |
2950219d | 342 | |
fc48b7a6 | 343 | if (third_bd) |
2950219d | 344 | third_bd->data.bitfields |= |
fc48b7a6 YM |
345 | cpu_to_le16(((tcp_hdrlen(skb) / 4) & |
346 | ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_MASK) << | |
347 | ETH_TX_DATA_3RD_BD_TCP_HDR_LEN_DW_SHIFT); | |
2950219d | 348 | |
fc48b7a6 | 349 | second_bd->data.bitfields1 = cpu_to_le16(bd2_bits1); |
2950219d YM |
350 | second_bd->data.bitfields2 = cpu_to_le16(bd2_bits2); |
351 | } | |
352 | ||
353 | static int map_frag_to_bd(struct qede_dev *edev, | |
354 | skb_frag_t *frag, | |
355 | struct eth_tx_bd *bd) | |
356 | { | |
357 | dma_addr_t mapping; | |
358 | ||
359 | /* Map skb non-linear frag data for DMA */ | |
360 | mapping = skb_frag_dma_map(&edev->pdev->dev, frag, 0, | |
361 | skb_frag_size(frag), | |
362 | DMA_TO_DEVICE); | |
363 | if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { | |
364 | DP_NOTICE(edev, "Unable to map frag - dropping packet\n"); | |
365 | return -ENOMEM; | |
366 | } | |
367 | ||
368 | /* Setup the data pointer of the frag data */ | |
369 | BD_SET_UNMAP_ADDR_LEN(bd, mapping, skb_frag_size(frag)); | |
370 | ||
371 | return 0; | |
372 | } | |
373 | ||
b1199b10 YM |
374 | /* +2 for 1st BD for headers and 2nd BD for headlen (if required) */ |
375 | #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET) | |
376 | static bool qede_pkt_req_lin(struct qede_dev *edev, struct sk_buff *skb, | |
377 | u8 xmit_type) | |
378 | { | |
379 | int allowed_frags = ETH_TX_MAX_BDS_PER_NON_LSO_PACKET - 1; | |
380 | ||
381 | if (xmit_type & XMIT_LSO) { | |
382 | int hlen; | |
383 | ||
384 | hlen = skb_transport_header(skb) + | |
385 | tcp_hdrlen(skb) - skb->data; | |
386 | ||
387 | /* linear payload would require its own BD */ | |
388 | if (skb_headlen(skb) > hlen) | |
389 | allowed_frags--; | |
390 | } | |
391 | ||
392 | return (skb_shinfo(skb)->nr_frags > allowed_frags); | |
393 | } | |
394 | #endif | |
395 | ||
2950219d YM |
396 | /* Main transmit function */ |
397 | static | |
398 | netdev_tx_t qede_start_xmit(struct sk_buff *skb, | |
399 | struct net_device *ndev) | |
400 | { | |
401 | struct qede_dev *edev = netdev_priv(ndev); | |
402 | struct netdev_queue *netdev_txq; | |
403 | struct qede_tx_queue *txq; | |
404 | struct eth_tx_1st_bd *first_bd; | |
405 | struct eth_tx_2nd_bd *second_bd = NULL; | |
406 | struct eth_tx_3rd_bd *third_bd = NULL; | |
407 | struct eth_tx_bd *tx_data_bd = NULL; | |
408 | u16 txq_index; | |
409 | u8 nbd = 0; | |
410 | dma_addr_t mapping; | |
411 | int rc, frag_idx = 0, ipv6_ext = 0; | |
412 | u8 xmit_type; | |
413 | u16 idx; | |
414 | u16 hlen; | |
415 | bool data_split; | |
416 | ||
417 | /* Get tx-queue context and netdev index */ | |
418 | txq_index = skb_get_queue_mapping(skb); | |
419 | WARN_ON(txq_index >= QEDE_TSS_CNT(edev)); | |
420 | txq = QEDE_TX_QUEUE(edev, txq_index); | |
421 | netdev_txq = netdev_get_tx_queue(ndev, txq_index); | |
422 | ||
2950219d YM |
423 | WARN_ON(qed_chain_get_elem_left(&txq->tx_pbl) < |
424 | (MAX_SKB_FRAGS + 1)); | |
425 | ||
426 | xmit_type = qede_xmit_type(edev, skb, &ipv6_ext); | |
427 | ||
b1199b10 YM |
428 | #if ((MAX_SKB_FRAGS + 2) > ETH_TX_MAX_BDS_PER_NON_LSO_PACKET) |
429 | if (qede_pkt_req_lin(edev, skb, xmit_type)) { | |
430 | if (skb_linearize(skb)) { | |
431 | DP_NOTICE(edev, | |
432 | "SKB linearization failed - silently dropping this SKB\n"); | |
433 | dev_kfree_skb_any(skb); | |
434 | return NETDEV_TX_OK; | |
435 | } | |
436 | } | |
437 | #endif | |
438 | ||
2950219d YM |
439 | /* Fill the entry in the SW ring and the BDs in the FW ring */ |
440 | idx = txq->sw_tx_prod & NUM_TX_BDS_MAX; | |
441 | txq->sw_tx_ring[idx].skb = skb; | |
442 | first_bd = (struct eth_tx_1st_bd *) | |
443 | qed_chain_produce(&txq->tx_pbl); | |
444 | memset(first_bd, 0, sizeof(*first_bd)); | |
445 | first_bd->data.bd_flags.bitfields = | |
446 | 1 << ETH_TX_1ST_BD_FLAGS_START_BD_SHIFT; | |
447 | ||
448 | /* Map skb linear data for DMA and set in the first BD */ | |
449 | mapping = dma_map_single(&edev->pdev->dev, skb->data, | |
450 | skb_headlen(skb), DMA_TO_DEVICE); | |
451 | if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { | |
452 | DP_NOTICE(edev, "SKB mapping failed\n"); | |
453 | qede_free_failed_tx_pkt(edev, txq, first_bd, 0, false); | |
454 | return NETDEV_TX_OK; | |
455 | } | |
456 | nbd++; | |
457 | BD_SET_UNMAP_ADDR_LEN(first_bd, mapping, skb_headlen(skb)); | |
458 | ||
459 | /* In case there is IPv6 with extension headers or LSO we need 2nd and | |
460 | * 3rd BDs. | |
461 | */ | |
462 | if (unlikely((xmit_type & XMIT_LSO) | ipv6_ext)) { | |
463 | second_bd = (struct eth_tx_2nd_bd *) | |
464 | qed_chain_produce(&txq->tx_pbl); | |
465 | memset(second_bd, 0, sizeof(*second_bd)); | |
466 | ||
467 | nbd++; | |
468 | third_bd = (struct eth_tx_3rd_bd *) | |
469 | qed_chain_produce(&txq->tx_pbl); | |
470 | memset(third_bd, 0, sizeof(*third_bd)); | |
471 | ||
472 | nbd++; | |
473 | /* We need to fill in additional data in second_bd... */ | |
474 | tx_data_bd = (struct eth_tx_bd *)second_bd; | |
475 | } | |
476 | ||
477 | if (skb_vlan_tag_present(skb)) { | |
478 | first_bd->data.vlan = cpu_to_le16(skb_vlan_tag_get(skb)); | |
479 | first_bd->data.bd_flags.bitfields |= | |
480 | 1 << ETH_TX_1ST_BD_FLAGS_VLAN_INSERTION_SHIFT; | |
481 | } | |
482 | ||
483 | /* Fill the parsing flags & params according to the requested offload */ | |
484 | if (xmit_type & XMIT_L4_CSUM) { | |
fc48b7a6 YM |
485 | u16 temp = 1 << ETH_TX_DATA_1ST_BD_TUNN_CFG_OVERRIDE_SHIFT; |
486 | ||
2950219d YM |
487 | /* We don't re-calculate IP checksum as it is already done by |
488 | * the upper stack | |
489 | */ | |
490 | first_bd->data.bd_flags.bitfields |= | |
491 | 1 << ETH_TX_1ST_BD_FLAGS_L4_CSUM_SHIFT; | |
492 | ||
fc48b7a6 YM |
493 | first_bd->data.bitfields |= cpu_to_le16(temp); |
494 | ||
2950219d YM |
495 | /* If the packet is IPv6 with extension header, indicate that |
496 | * to FW and pass few params, since the device cracker doesn't | |
497 | * support parsing IPv6 with extension header/s. | |
498 | */ | |
499 | if (unlikely(ipv6_ext)) | |
500 | qede_set_params_for_ipv6_ext(skb, second_bd, third_bd); | |
501 | } | |
502 | ||
503 | if (xmit_type & XMIT_LSO) { | |
504 | first_bd->data.bd_flags.bitfields |= | |
505 | (1 << ETH_TX_1ST_BD_FLAGS_LSO_SHIFT); | |
506 | third_bd->data.lso_mss = | |
507 | cpu_to_le16(skb_shinfo(skb)->gso_size); | |
508 | ||
509 | first_bd->data.bd_flags.bitfields |= | |
510 | 1 << ETH_TX_1ST_BD_FLAGS_IP_CSUM_SHIFT; | |
511 | hlen = skb_transport_header(skb) + | |
512 | tcp_hdrlen(skb) - skb->data; | |
513 | ||
514 | /* @@@TBD - if will not be removed need to check */ | |
515 | third_bd->data.bitfields |= | |
fc48b7a6 | 516 | cpu_to_le16((1 << ETH_TX_DATA_3RD_BD_HDR_NBD_SHIFT)); |
2950219d YM |
517 | |
518 | /* Make life easier for FW guys who can't deal with header and | |
519 | * data on same BD. If we need to split, use the second bd... | |
520 | */ | |
521 | if (unlikely(skb_headlen(skb) > hlen)) { | |
522 | DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, | |
523 | "TSO split header size is %d (%x:%x)\n", | |
524 | first_bd->nbytes, first_bd->addr.hi, | |
525 | first_bd->addr.lo); | |
526 | ||
527 | mapping = HILO_U64(le32_to_cpu(first_bd->addr.hi), | |
528 | le32_to_cpu(first_bd->addr.lo)) + | |
529 | hlen; | |
530 | ||
531 | BD_SET_UNMAP_ADDR_LEN(tx_data_bd, mapping, | |
532 | le16_to_cpu(first_bd->nbytes) - | |
533 | hlen); | |
534 | ||
535 | /* this marks the BD as one that has no | |
536 | * individual mapping | |
537 | */ | |
538 | txq->sw_tx_ring[idx].flags |= QEDE_TSO_SPLIT_BD; | |
539 | ||
540 | first_bd->nbytes = cpu_to_le16(hlen); | |
541 | ||
542 | tx_data_bd = (struct eth_tx_bd *)third_bd; | |
543 | data_split = true; | |
544 | } | |
545 | } | |
546 | ||
547 | /* Handle fragmented skb */ | |
548 | /* special handle for frags inside 2nd and 3rd bds.. */ | |
549 | while (tx_data_bd && frag_idx < skb_shinfo(skb)->nr_frags) { | |
550 | rc = map_frag_to_bd(edev, | |
551 | &skb_shinfo(skb)->frags[frag_idx], | |
552 | tx_data_bd); | |
553 | if (rc) { | |
554 | qede_free_failed_tx_pkt(edev, txq, first_bd, nbd, | |
555 | data_split); | |
556 | return NETDEV_TX_OK; | |
557 | } | |
558 | ||
559 | if (tx_data_bd == (struct eth_tx_bd *)second_bd) | |
560 | tx_data_bd = (struct eth_tx_bd *)third_bd; | |
561 | else | |
562 | tx_data_bd = NULL; | |
563 | ||
564 | frag_idx++; | |
565 | } | |
566 | ||
567 | /* map last frags into 4th, 5th .... */ | |
568 | for (; frag_idx < skb_shinfo(skb)->nr_frags; frag_idx++, nbd++) { | |
569 | tx_data_bd = (struct eth_tx_bd *) | |
570 | qed_chain_produce(&txq->tx_pbl); | |
571 | ||
572 | memset(tx_data_bd, 0, sizeof(*tx_data_bd)); | |
573 | ||
574 | rc = map_frag_to_bd(edev, | |
575 | &skb_shinfo(skb)->frags[frag_idx], | |
576 | tx_data_bd); | |
577 | if (rc) { | |
578 | qede_free_failed_tx_pkt(edev, txq, first_bd, nbd, | |
579 | data_split); | |
580 | return NETDEV_TX_OK; | |
581 | } | |
582 | } | |
583 | ||
584 | /* update the first BD with the actual num BDs */ | |
585 | first_bd->data.nbds = nbd; | |
586 | ||
587 | netdev_tx_sent_queue(netdev_txq, skb->len); | |
588 | ||
589 | skb_tx_timestamp(skb); | |
590 | ||
591 | /* Advance packet producer only before sending the packet since mapping | |
592 | * of pages may fail. | |
593 | */ | |
594 | txq->sw_tx_prod++; | |
595 | ||
596 | /* 'next page' entries are counted in the producer value */ | |
597 | txq->tx_db.data.bd_prod = | |
598 | cpu_to_le16(qed_chain_get_prod_idx(&txq->tx_pbl)); | |
599 | ||
600 | /* wmb makes sure that the BDs data is updated before updating the | |
601 | * producer, otherwise FW may read old data from the BDs. | |
602 | */ | |
603 | wmb(); | |
604 | barrier(); | |
605 | writel(txq->tx_db.raw, txq->doorbell_addr); | |
606 | ||
607 | /* mmiowb is needed to synchronize doorbell writes from more than one | |
608 | * processor. It guarantees that the write arrives to the device before | |
609 | * the queue lock is released and another start_xmit is called (possibly | |
610 | * on another CPU). Without this barrier, the next doorbell can bypass | |
611 | * this doorbell. This is applicable to IA64/Altix systems. | |
612 | */ | |
613 | mmiowb(); | |
614 | ||
615 | if (unlikely(qed_chain_get_elem_left(&txq->tx_pbl) | |
616 | < (MAX_SKB_FRAGS + 1))) { | |
617 | netif_tx_stop_queue(netdev_txq); | |
618 | DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, | |
619 | "Stop queue was called\n"); | |
620 | /* paired memory barrier is in qede_tx_int(), we have to keep | |
621 | * ordering of set_bit() in netif_tx_stop_queue() and read of | |
622 | * fp->bd_tx_cons | |
623 | */ | |
624 | smp_mb(); | |
625 | ||
626 | if (qed_chain_get_elem_left(&txq->tx_pbl) | |
627 | >= (MAX_SKB_FRAGS + 1) && | |
628 | (edev->state == QEDE_STATE_OPEN)) { | |
629 | netif_tx_wake_queue(netdev_txq); | |
630 | DP_VERBOSE(edev, NETIF_MSG_TX_QUEUED, | |
631 | "Wake queue was called\n"); | |
632 | } | |
633 | } | |
634 | ||
635 | return NETDEV_TX_OK; | |
636 | } | |
637 | ||
638 | static int qede_txq_has_work(struct qede_tx_queue *txq) | |
639 | { | |
640 | u16 hw_bd_cons; | |
641 | ||
642 | /* Tell compiler that consumer and producer can change */ | |
643 | barrier(); | |
644 | hw_bd_cons = le16_to_cpu(*txq->hw_cons_ptr); | |
645 | if (qed_chain_get_cons_idx(&txq->tx_pbl) == hw_bd_cons + 1) | |
646 | return 0; | |
647 | ||
648 | return hw_bd_cons != qed_chain_get_cons_idx(&txq->tx_pbl); | |
649 | } | |
650 | ||
651 | static int qede_tx_int(struct qede_dev *edev, | |
652 | struct qede_tx_queue *txq) | |
653 | { | |
654 | struct netdev_queue *netdev_txq; | |
655 | u16 hw_bd_cons; | |
656 | unsigned int pkts_compl = 0, bytes_compl = 0; | |
657 | int rc; | |
658 | ||
659 | netdev_txq = netdev_get_tx_queue(edev->ndev, txq->index); | |
660 | ||
661 | hw_bd_cons = le16_to_cpu(*txq->hw_cons_ptr); | |
662 | barrier(); | |
663 | ||
664 | while (hw_bd_cons != qed_chain_get_cons_idx(&txq->tx_pbl)) { | |
665 | int len = 0; | |
666 | ||
667 | rc = qede_free_tx_pkt(edev, txq, &len); | |
668 | if (rc) { | |
669 | DP_NOTICE(edev, "hw_bd_cons = %d, chain_cons=%d\n", | |
670 | hw_bd_cons, | |
671 | qed_chain_get_cons_idx(&txq->tx_pbl)); | |
672 | break; | |
673 | } | |
674 | ||
675 | bytes_compl += len; | |
676 | pkts_compl++; | |
677 | txq->sw_tx_cons++; | |
678 | } | |
679 | ||
680 | netdev_tx_completed_queue(netdev_txq, pkts_compl, bytes_compl); | |
681 | ||
682 | /* Need to make the tx_bd_cons update visible to start_xmit() | |
683 | * before checking for netif_tx_queue_stopped(). Without the | |
684 | * memory barrier, there is a small possibility that | |
685 | * start_xmit() will miss it and cause the queue to be stopped | |
686 | * forever. | |
687 | * On the other hand we need an rmb() here to ensure the proper | |
688 | * ordering of bit testing in the following | |
689 | * netif_tx_queue_stopped(txq) call. | |
690 | */ | |
691 | smp_mb(); | |
692 | ||
693 | if (unlikely(netif_tx_queue_stopped(netdev_txq))) { | |
694 | /* Taking tx_lock is needed to prevent reenabling the queue | |
695 | * while it's empty. This could have happen if rx_action() gets | |
696 | * suspended in qede_tx_int() after the condition before | |
697 | * netif_tx_wake_queue(), while tx_action (qede_start_xmit()): | |
698 | * | |
699 | * stops the queue->sees fresh tx_bd_cons->releases the queue-> | |
700 | * sends some packets consuming the whole queue again-> | |
701 | * stops the queue | |
702 | */ | |
703 | ||
704 | __netif_tx_lock(netdev_txq, smp_processor_id()); | |
705 | ||
706 | if ((netif_tx_queue_stopped(netdev_txq)) && | |
707 | (edev->state == QEDE_STATE_OPEN) && | |
708 | (qed_chain_get_elem_left(&txq->tx_pbl) | |
709 | >= (MAX_SKB_FRAGS + 1))) { | |
710 | netif_tx_wake_queue(netdev_txq); | |
711 | DP_VERBOSE(edev, NETIF_MSG_TX_DONE, | |
712 | "Wake queue was called\n"); | |
713 | } | |
714 | ||
715 | __netif_tx_unlock(netdev_txq); | |
716 | } | |
717 | ||
718 | return 0; | |
719 | } | |
720 | ||
721 | static bool qede_has_rx_work(struct qede_rx_queue *rxq) | |
722 | { | |
723 | u16 hw_comp_cons, sw_comp_cons; | |
724 | ||
725 | /* Tell compiler that status block fields can change */ | |
726 | barrier(); | |
727 | ||
728 | hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr); | |
729 | sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); | |
730 | ||
731 | return hw_comp_cons != sw_comp_cons; | |
732 | } | |
733 | ||
734 | static bool qede_has_tx_work(struct qede_fastpath *fp) | |
735 | { | |
736 | u8 tc; | |
737 | ||
738 | for (tc = 0; tc < fp->edev->num_tc; tc++) | |
739 | if (qede_txq_has_work(&fp->txqs[tc])) | |
740 | return true; | |
741 | return false; | |
742 | } | |
743 | ||
fc48b7a6 YM |
744 | /* This function reuses the buffer(from an offset) from |
745 | * consumer index to producer index in the bd ring | |
2950219d | 746 | */ |
fc48b7a6 YM |
747 | static inline void qede_reuse_page(struct qede_dev *edev, |
748 | struct qede_rx_queue *rxq, | |
749 | struct sw_rx_data *curr_cons) | |
2950219d | 750 | { |
2950219d | 751 | struct eth_rx_bd *rx_bd_prod = qed_chain_produce(&rxq->rx_bd_ring); |
fc48b7a6 YM |
752 | struct sw_rx_data *curr_prod; |
753 | dma_addr_t new_mapping; | |
2950219d | 754 | |
fc48b7a6 YM |
755 | curr_prod = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; |
756 | *curr_prod = *curr_cons; | |
2950219d | 757 | |
fc48b7a6 YM |
758 | new_mapping = curr_prod->mapping + curr_prod->page_offset; |
759 | ||
760 | rx_bd_prod->addr.hi = cpu_to_le32(upper_32_bits(new_mapping)); | |
761 | rx_bd_prod->addr.lo = cpu_to_le32(lower_32_bits(new_mapping)); | |
2950219d | 762 | |
2950219d | 763 | rxq->sw_rx_prod++; |
fc48b7a6 YM |
764 | curr_cons->data = NULL; |
765 | } | |
766 | ||
767 | static inline int qede_realloc_rx_buffer(struct qede_dev *edev, | |
768 | struct qede_rx_queue *rxq, | |
769 | struct sw_rx_data *curr_cons) | |
770 | { | |
771 | /* Move to the next segment in the page */ | |
772 | curr_cons->page_offset += rxq->rx_buf_seg_size; | |
773 | ||
774 | if (curr_cons->page_offset == PAGE_SIZE) { | |
775 | if (unlikely(qede_alloc_rx_buffer(edev, rxq))) | |
776 | return -ENOMEM; | |
777 | ||
778 | dma_unmap_page(&edev->pdev->dev, curr_cons->mapping, | |
779 | PAGE_SIZE, DMA_FROM_DEVICE); | |
780 | } else { | |
781 | /* Increment refcount of the page as we don't want | |
782 | * network stack to take the ownership of the page | |
783 | * which can be recycled multiple times by the driver. | |
784 | */ | |
785 | atomic_inc(&curr_cons->data->_count); | |
786 | qede_reuse_page(edev, rxq, curr_cons); | |
787 | } | |
788 | ||
789 | return 0; | |
2950219d YM |
790 | } |
791 | ||
792 | static inline void qede_update_rx_prod(struct qede_dev *edev, | |
793 | struct qede_rx_queue *rxq) | |
794 | { | |
795 | u16 bd_prod = qed_chain_get_prod_idx(&rxq->rx_bd_ring); | |
796 | u16 cqe_prod = qed_chain_get_prod_idx(&rxq->rx_comp_ring); | |
797 | struct eth_rx_prod_data rx_prods = {0}; | |
798 | ||
799 | /* Update producers */ | |
800 | rx_prods.bd_prod = cpu_to_le16(bd_prod); | |
801 | rx_prods.cqe_prod = cpu_to_le16(cqe_prod); | |
802 | ||
803 | /* Make sure that the BD and SGE data is updated before updating the | |
804 | * producers since FW might read the BD/SGE right after the producer | |
805 | * is updated. | |
806 | */ | |
807 | wmb(); | |
808 | ||
809 | internal_ram_wr(rxq->hw_rxq_prod_addr, sizeof(rx_prods), | |
810 | (u32 *)&rx_prods); | |
811 | ||
812 | /* mmiowb is needed to synchronize doorbell writes from more than one | |
813 | * processor. It guarantees that the write arrives to the device before | |
814 | * the napi lock is released and another qede_poll is called (possibly | |
815 | * on another CPU). Without this barrier, the next doorbell can bypass | |
816 | * this doorbell. This is applicable to IA64/Altix systems. | |
817 | */ | |
818 | mmiowb(); | |
819 | } | |
820 | ||
821 | static u32 qede_get_rxhash(struct qede_dev *edev, | |
822 | u8 bitfields, | |
823 | __le32 rss_hash, | |
824 | enum pkt_hash_types *rxhash_type) | |
825 | { | |
826 | enum rss_hash_type htype; | |
827 | ||
828 | htype = GET_FIELD(bitfields, ETH_FAST_PATH_RX_REG_CQE_RSS_HASH_TYPE); | |
829 | ||
830 | if ((edev->ndev->features & NETIF_F_RXHASH) && htype) { | |
831 | *rxhash_type = ((htype == RSS_HASH_TYPE_IPV4) || | |
832 | (htype == RSS_HASH_TYPE_IPV6)) ? | |
833 | PKT_HASH_TYPE_L3 : PKT_HASH_TYPE_L4; | |
834 | return le32_to_cpu(rss_hash); | |
835 | } | |
836 | *rxhash_type = PKT_HASH_TYPE_NONE; | |
837 | return 0; | |
838 | } | |
839 | ||
840 | static void qede_set_skb_csum(struct sk_buff *skb, u8 csum_flag) | |
841 | { | |
842 | skb_checksum_none_assert(skb); | |
843 | ||
844 | if (csum_flag & QEDE_CSUM_UNNECESSARY) | |
845 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
846 | } | |
847 | ||
848 | static inline void qede_skb_receive(struct qede_dev *edev, | |
849 | struct qede_fastpath *fp, | |
850 | struct sk_buff *skb, | |
851 | u16 vlan_tag) | |
852 | { | |
853 | if (vlan_tag) | |
854 | __vlan_hwaccel_put_tag(skb, htons(ETH_P_8021Q), | |
855 | vlan_tag); | |
856 | ||
857 | napi_gro_receive(&fp->napi, skb); | |
858 | } | |
859 | ||
55482edc MC |
860 | static void qede_set_gro_params(struct qede_dev *edev, |
861 | struct sk_buff *skb, | |
862 | struct eth_fast_path_rx_tpa_start_cqe *cqe) | |
863 | { | |
864 | u16 parsing_flags = le16_to_cpu(cqe->pars_flags.flags); | |
865 | ||
866 | if (((parsing_flags >> PARSING_AND_ERR_FLAGS_L3TYPE_SHIFT) & | |
867 | PARSING_AND_ERR_FLAGS_L3TYPE_MASK) == 2) | |
868 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
869 | else | |
870 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
871 | ||
872 | skb_shinfo(skb)->gso_size = __le16_to_cpu(cqe->len_on_first_bd) - | |
873 | cqe->header_len; | |
874 | } | |
875 | ||
876 | static int qede_fill_frag_skb(struct qede_dev *edev, | |
877 | struct qede_rx_queue *rxq, | |
878 | u8 tpa_agg_index, | |
879 | u16 len_on_bd) | |
880 | { | |
881 | struct sw_rx_data *current_bd = &rxq->sw_rx_ring[rxq->sw_rx_cons & | |
882 | NUM_RX_BDS_MAX]; | |
883 | struct qede_agg_info *tpa_info = &rxq->tpa_info[tpa_agg_index]; | |
884 | struct sk_buff *skb = tpa_info->skb; | |
885 | ||
886 | if (unlikely(tpa_info->agg_state != QEDE_AGG_STATE_START)) | |
887 | goto out; | |
888 | ||
889 | /* Add one frag and update the appropriate fields in the skb */ | |
890 | skb_fill_page_desc(skb, tpa_info->frag_id++, | |
891 | current_bd->data, current_bd->page_offset, | |
892 | len_on_bd); | |
893 | ||
894 | if (unlikely(qede_realloc_rx_buffer(edev, rxq, current_bd))) { | |
895 | tpa_info->agg_state = QEDE_AGG_STATE_ERROR; | |
896 | goto out; | |
897 | } | |
898 | ||
899 | qed_chain_consume(&rxq->rx_bd_ring); | |
900 | rxq->sw_rx_cons++; | |
901 | ||
902 | skb->data_len += len_on_bd; | |
903 | skb->truesize += rxq->rx_buf_seg_size; | |
904 | skb->len += len_on_bd; | |
905 | ||
906 | return 0; | |
907 | ||
908 | out: | |
909 | return -ENOMEM; | |
910 | } | |
911 | ||
912 | static void qede_tpa_start(struct qede_dev *edev, | |
913 | struct qede_rx_queue *rxq, | |
914 | struct eth_fast_path_rx_tpa_start_cqe *cqe) | |
915 | { | |
916 | struct qede_agg_info *tpa_info = &rxq->tpa_info[cqe->tpa_agg_index]; | |
917 | struct eth_rx_bd *rx_bd_cons = qed_chain_consume(&rxq->rx_bd_ring); | |
918 | struct eth_rx_bd *rx_bd_prod = qed_chain_produce(&rxq->rx_bd_ring); | |
919 | struct sw_rx_data *replace_buf = &tpa_info->replace_buf; | |
920 | dma_addr_t mapping = tpa_info->replace_buf_mapping; | |
921 | struct sw_rx_data *sw_rx_data_cons; | |
922 | struct sw_rx_data *sw_rx_data_prod; | |
923 | enum pkt_hash_types rxhash_type; | |
924 | u32 rxhash; | |
925 | ||
926 | sw_rx_data_cons = &rxq->sw_rx_ring[rxq->sw_rx_cons & NUM_RX_BDS_MAX]; | |
927 | sw_rx_data_prod = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; | |
928 | ||
929 | /* Use pre-allocated replacement buffer - we can't release the agg. | |
930 | * start until its over and we don't want to risk allocation failing | |
931 | * here, so re-allocate when aggregation will be over. | |
932 | */ | |
933 | dma_unmap_addr_set(sw_rx_data_prod, mapping, | |
934 | dma_unmap_addr(replace_buf, mapping)); | |
935 | ||
936 | sw_rx_data_prod->data = replace_buf->data; | |
937 | rx_bd_prod->addr.hi = cpu_to_le32(upper_32_bits(mapping)); | |
938 | rx_bd_prod->addr.lo = cpu_to_le32(lower_32_bits(mapping)); | |
939 | sw_rx_data_prod->page_offset = replace_buf->page_offset; | |
940 | ||
941 | rxq->sw_rx_prod++; | |
942 | ||
943 | /* move partial skb from cons to pool (don't unmap yet) | |
944 | * save mapping, incase we drop the packet later on. | |
945 | */ | |
946 | tpa_info->start_buf = *sw_rx_data_cons; | |
947 | mapping = HILO_U64(le32_to_cpu(rx_bd_cons->addr.hi), | |
948 | le32_to_cpu(rx_bd_cons->addr.lo)); | |
949 | ||
950 | tpa_info->start_buf_mapping = mapping; | |
951 | rxq->sw_rx_cons++; | |
952 | ||
953 | /* set tpa state to start only if we are able to allocate skb | |
954 | * for this aggregation, otherwise mark as error and aggregation will | |
955 | * be dropped | |
956 | */ | |
957 | tpa_info->skb = netdev_alloc_skb(edev->ndev, | |
958 | le16_to_cpu(cqe->len_on_first_bd)); | |
959 | if (unlikely(!tpa_info->skb)) { | |
960 | tpa_info->agg_state = QEDE_AGG_STATE_ERROR; | |
961 | return; | |
962 | } | |
963 | ||
964 | skb_put(tpa_info->skb, le16_to_cpu(cqe->len_on_first_bd)); | |
965 | memcpy(&tpa_info->start_cqe, cqe, sizeof(tpa_info->start_cqe)); | |
966 | ||
967 | /* Start filling in the aggregation info */ | |
968 | tpa_info->frag_id = 0; | |
969 | tpa_info->agg_state = QEDE_AGG_STATE_START; | |
970 | ||
971 | rxhash = qede_get_rxhash(edev, cqe->bitfields, | |
972 | cqe->rss_hash, &rxhash_type); | |
973 | skb_set_hash(tpa_info->skb, rxhash, rxhash_type); | |
974 | if ((le16_to_cpu(cqe->pars_flags.flags) >> | |
975 | PARSING_AND_ERR_FLAGS_TAG8021QEXIST_SHIFT) & | |
976 | PARSING_AND_ERR_FLAGS_TAG8021QEXIST_MASK) | |
977 | tpa_info->vlan_tag = le16_to_cpu(cqe->vlan_tag); | |
978 | else | |
979 | tpa_info->vlan_tag = 0; | |
980 | ||
981 | /* This is needed in order to enable forwarding support */ | |
982 | qede_set_gro_params(edev, tpa_info->skb, cqe); | |
983 | ||
984 | if (likely(cqe->ext_bd_len_list[0])) | |
985 | qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, | |
986 | le16_to_cpu(cqe->ext_bd_len_list[0])); | |
987 | ||
988 | if (unlikely(cqe->ext_bd_len_list[1])) { | |
989 | DP_ERR(edev, | |
990 | "Unlikely - got a TPA aggregation with more than one ext_bd_len_list entry in the TPA start\n"); | |
991 | tpa_info->agg_state = QEDE_AGG_STATE_ERROR; | |
992 | } | |
993 | } | |
994 | ||
88f09bd5 | 995 | #ifdef CONFIG_INET |
55482edc MC |
996 | static void qede_gro_ip_csum(struct sk_buff *skb) |
997 | { | |
998 | const struct iphdr *iph = ip_hdr(skb); | |
999 | struct tcphdr *th; | |
1000 | ||
1001 | skb_set_network_header(skb, 0); | |
1002 | skb_set_transport_header(skb, sizeof(struct iphdr)); | |
1003 | th = tcp_hdr(skb); | |
1004 | ||
1005 | th->check = ~tcp_v4_check(skb->len - skb_transport_offset(skb), | |
1006 | iph->saddr, iph->daddr, 0); | |
1007 | ||
1008 | tcp_gro_complete(skb); | |
1009 | } | |
1010 | ||
1011 | static void qede_gro_ipv6_csum(struct sk_buff *skb) | |
1012 | { | |
1013 | struct ipv6hdr *iph = ipv6_hdr(skb); | |
1014 | struct tcphdr *th; | |
1015 | ||
1016 | skb_set_network_header(skb, 0); | |
1017 | skb_set_transport_header(skb, sizeof(struct ipv6hdr)); | |
1018 | th = tcp_hdr(skb); | |
1019 | ||
1020 | th->check = ~tcp_v6_check(skb->len - skb_transport_offset(skb), | |
1021 | &iph->saddr, &iph->daddr, 0); | |
1022 | tcp_gro_complete(skb); | |
1023 | } | |
88f09bd5 | 1024 | #endif |
55482edc MC |
1025 | |
1026 | static void qede_gro_receive(struct qede_dev *edev, | |
1027 | struct qede_fastpath *fp, | |
1028 | struct sk_buff *skb, | |
1029 | u16 vlan_tag) | |
1030 | { | |
88f09bd5 | 1031 | #ifdef CONFIG_INET |
55482edc MC |
1032 | if (skb_shinfo(skb)->gso_size) { |
1033 | switch (skb->protocol) { | |
1034 | case htons(ETH_P_IP): | |
1035 | qede_gro_ip_csum(skb); | |
1036 | break; | |
1037 | case htons(ETH_P_IPV6): | |
1038 | qede_gro_ipv6_csum(skb); | |
1039 | break; | |
1040 | default: | |
1041 | DP_ERR(edev, | |
1042 | "Error: FW GRO supports only IPv4/IPv6, not 0x%04x\n", | |
1043 | ntohs(skb->protocol)); | |
1044 | } | |
1045 | } | |
88f09bd5 | 1046 | #endif |
55482edc MC |
1047 | skb_record_rx_queue(skb, fp->rss_id); |
1048 | qede_skb_receive(edev, fp, skb, vlan_tag); | |
1049 | } | |
1050 | ||
1051 | static inline void qede_tpa_cont(struct qede_dev *edev, | |
1052 | struct qede_rx_queue *rxq, | |
1053 | struct eth_fast_path_rx_tpa_cont_cqe *cqe) | |
1054 | { | |
1055 | int i; | |
1056 | ||
1057 | for (i = 0; cqe->len_list[i]; i++) | |
1058 | qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, | |
1059 | le16_to_cpu(cqe->len_list[i])); | |
1060 | ||
1061 | if (unlikely(i > 1)) | |
1062 | DP_ERR(edev, | |
1063 | "Strange - TPA cont with more than a single len_list entry\n"); | |
1064 | } | |
1065 | ||
1066 | static void qede_tpa_end(struct qede_dev *edev, | |
1067 | struct qede_fastpath *fp, | |
1068 | struct eth_fast_path_rx_tpa_end_cqe *cqe) | |
1069 | { | |
1070 | struct qede_rx_queue *rxq = fp->rxq; | |
1071 | struct qede_agg_info *tpa_info; | |
1072 | struct sk_buff *skb; | |
1073 | int i; | |
1074 | ||
1075 | tpa_info = &rxq->tpa_info[cqe->tpa_agg_index]; | |
1076 | skb = tpa_info->skb; | |
1077 | ||
1078 | for (i = 0; cqe->len_list[i]; i++) | |
1079 | qede_fill_frag_skb(edev, rxq, cqe->tpa_agg_index, | |
1080 | le16_to_cpu(cqe->len_list[i])); | |
1081 | if (unlikely(i > 1)) | |
1082 | DP_ERR(edev, | |
1083 | "Strange - TPA emd with more than a single len_list entry\n"); | |
1084 | ||
1085 | if (unlikely(tpa_info->agg_state != QEDE_AGG_STATE_START)) | |
1086 | goto err; | |
1087 | ||
1088 | /* Sanity */ | |
1089 | if (unlikely(cqe->num_of_bds != tpa_info->frag_id + 1)) | |
1090 | DP_ERR(edev, | |
1091 | "Strange - TPA had %02x BDs, but SKB has only %d frags\n", | |
1092 | cqe->num_of_bds, tpa_info->frag_id); | |
1093 | if (unlikely(skb->len != le16_to_cpu(cqe->total_packet_len))) | |
1094 | DP_ERR(edev, | |
1095 | "Strange - total packet len [cqe] is %4x but SKB has len %04x\n", | |
1096 | le16_to_cpu(cqe->total_packet_len), skb->len); | |
1097 | ||
1098 | memcpy(skb->data, | |
1099 | page_address(tpa_info->start_buf.data) + | |
1100 | tpa_info->start_cqe.placement_offset + | |
1101 | tpa_info->start_buf.page_offset, | |
1102 | le16_to_cpu(tpa_info->start_cqe.len_on_first_bd)); | |
1103 | ||
1104 | /* Recycle [mapped] start buffer for the next replacement */ | |
1105 | tpa_info->replace_buf = tpa_info->start_buf; | |
1106 | tpa_info->replace_buf_mapping = tpa_info->start_buf_mapping; | |
1107 | ||
1108 | /* Finalize the SKB */ | |
1109 | skb->protocol = eth_type_trans(skb, edev->ndev); | |
1110 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
1111 | ||
1112 | /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count | |
1113 | * to skb_shinfo(skb)->gso_segs | |
1114 | */ | |
1115 | NAPI_GRO_CB(skb)->count = le16_to_cpu(cqe->num_of_coalesced_segs); | |
1116 | ||
1117 | qede_gro_receive(edev, fp, skb, tpa_info->vlan_tag); | |
1118 | ||
1119 | tpa_info->agg_state = QEDE_AGG_STATE_NONE; | |
1120 | ||
1121 | return; | |
1122 | err: | |
1123 | /* The BD starting the aggregation is still mapped; Re-use it for | |
1124 | * future aggregations [as replacement buffer] | |
1125 | */ | |
1126 | memcpy(&tpa_info->replace_buf, &tpa_info->start_buf, | |
1127 | sizeof(struct sw_rx_data)); | |
1128 | tpa_info->replace_buf_mapping = tpa_info->start_buf_mapping; | |
1129 | tpa_info->start_buf.data = NULL; | |
1130 | tpa_info->agg_state = QEDE_AGG_STATE_NONE; | |
1131 | dev_kfree_skb_any(tpa_info->skb); | |
1132 | tpa_info->skb = NULL; | |
1133 | } | |
1134 | ||
2950219d YM |
1135 | static u8 qede_check_csum(u16 flag) |
1136 | { | |
1137 | u16 csum_flag = 0; | |
1138 | u8 csum = 0; | |
1139 | ||
1140 | if ((PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_MASK << | |
1141 | PARSING_AND_ERR_FLAGS_L4CHKSMWASCALCULATED_SHIFT) & flag) { | |
1142 | csum_flag |= PARSING_AND_ERR_FLAGS_L4CHKSMERROR_MASK << | |
1143 | PARSING_AND_ERR_FLAGS_L4CHKSMERROR_SHIFT; | |
1144 | csum = QEDE_CSUM_UNNECESSARY; | |
1145 | } | |
1146 | ||
1147 | csum_flag |= PARSING_AND_ERR_FLAGS_IPHDRERROR_MASK << | |
1148 | PARSING_AND_ERR_FLAGS_IPHDRERROR_SHIFT; | |
1149 | ||
1150 | if (csum_flag & flag) | |
1151 | return QEDE_CSUM_ERROR; | |
1152 | ||
1153 | return csum; | |
1154 | } | |
1155 | ||
1156 | static int qede_rx_int(struct qede_fastpath *fp, int budget) | |
1157 | { | |
1158 | struct qede_dev *edev = fp->edev; | |
1159 | struct qede_rx_queue *rxq = fp->rxq; | |
1160 | ||
1161 | u16 hw_comp_cons, sw_comp_cons, sw_rx_index, parse_flag; | |
1162 | int rx_pkt = 0; | |
1163 | u8 csum_flag; | |
1164 | ||
1165 | hw_comp_cons = le16_to_cpu(*rxq->hw_cons_ptr); | |
1166 | sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); | |
1167 | ||
1168 | /* Memory barrier to prevent the CPU from doing speculative reads of CQE | |
1169 | * / BD in the while-loop before reading hw_comp_cons. If the CQE is | |
1170 | * read before it is written by FW, then FW writes CQE and SB, and then | |
1171 | * the CPU reads the hw_comp_cons, it will use an old CQE. | |
1172 | */ | |
1173 | rmb(); | |
1174 | ||
1175 | /* Loop to complete all indicated BDs */ | |
1176 | while (sw_comp_cons != hw_comp_cons) { | |
1177 | struct eth_fast_path_rx_reg_cqe *fp_cqe; | |
1178 | enum pkt_hash_types rxhash_type; | |
1179 | enum eth_rx_cqe_type cqe_type; | |
1180 | struct sw_rx_data *sw_rx_data; | |
1181 | union eth_rx_cqe *cqe; | |
1182 | struct sk_buff *skb; | |
fc48b7a6 YM |
1183 | struct page *data; |
1184 | __le16 flags; | |
2950219d YM |
1185 | u16 len, pad; |
1186 | u32 rx_hash; | |
2950219d YM |
1187 | |
1188 | /* Get the CQE from the completion ring */ | |
1189 | cqe = (union eth_rx_cqe *) | |
1190 | qed_chain_consume(&rxq->rx_comp_ring); | |
1191 | cqe_type = cqe->fast_path_regular.type; | |
1192 | ||
1193 | if (unlikely(cqe_type == ETH_RX_CQE_TYPE_SLOW_PATH)) { | |
1194 | edev->ops->eth_cqe_completion( | |
1195 | edev->cdev, fp->rss_id, | |
1196 | (struct eth_slow_path_rx_cqe *)cqe); | |
1197 | goto next_cqe; | |
1198 | } | |
1199 | ||
55482edc MC |
1200 | if (cqe_type != ETH_RX_CQE_TYPE_REGULAR) { |
1201 | switch (cqe_type) { | |
1202 | case ETH_RX_CQE_TYPE_TPA_START: | |
1203 | qede_tpa_start(edev, rxq, | |
1204 | &cqe->fast_path_tpa_start); | |
1205 | goto next_cqe; | |
1206 | case ETH_RX_CQE_TYPE_TPA_CONT: | |
1207 | qede_tpa_cont(edev, rxq, | |
1208 | &cqe->fast_path_tpa_cont); | |
1209 | goto next_cqe; | |
1210 | case ETH_RX_CQE_TYPE_TPA_END: | |
1211 | qede_tpa_end(edev, fp, | |
1212 | &cqe->fast_path_tpa_end); | |
1213 | goto next_rx_only; | |
1214 | default: | |
1215 | break; | |
1216 | } | |
1217 | } | |
1218 | ||
2950219d YM |
1219 | /* Get the data from the SW ring */ |
1220 | sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS_MAX; | |
1221 | sw_rx_data = &rxq->sw_rx_ring[sw_rx_index]; | |
1222 | data = sw_rx_data->data; | |
1223 | ||
1224 | fp_cqe = &cqe->fast_path_regular; | |
fc48b7a6 | 1225 | len = le16_to_cpu(fp_cqe->len_on_first_bd); |
2950219d | 1226 | pad = fp_cqe->placement_offset; |
fc48b7a6 | 1227 | flags = cqe->fast_path_regular.pars_flags.flags; |
2950219d | 1228 | |
fc48b7a6 YM |
1229 | /* If this is an error packet then drop it */ |
1230 | parse_flag = le16_to_cpu(flags); | |
2950219d | 1231 | |
fc48b7a6 YM |
1232 | csum_flag = qede_check_csum(parse_flag); |
1233 | if (unlikely(csum_flag == QEDE_CSUM_ERROR)) { | |
1234 | DP_NOTICE(edev, | |
1235 | "CQE in CONS = %u has error, flags = %x, dropping incoming packet\n", | |
1236 | sw_comp_cons, parse_flag); | |
1237 | rxq->rx_hw_errors++; | |
1238 | qede_reuse_page(edev, rxq, sw_rx_data); | |
1239 | goto next_rx; | |
1240 | } | |
2950219d | 1241 | |
fc48b7a6 YM |
1242 | skb = netdev_alloc_skb(edev->ndev, QEDE_RX_HDR_SIZE); |
1243 | if (unlikely(!skb)) { | |
2950219d | 1244 | DP_NOTICE(edev, |
fc48b7a6 YM |
1245 | "Build_skb failed, dropping incoming packet\n"); |
1246 | qede_reuse_page(edev, rxq, sw_rx_data); | |
2950219d | 1247 | rxq->rx_alloc_errors++; |
fc48b7a6 YM |
1248 | goto next_rx; |
1249 | } | |
1250 | ||
1251 | /* Copy data into SKB */ | |
1252 | if (len + pad <= QEDE_RX_HDR_SIZE) { | |
1253 | memcpy(skb_put(skb, len), | |
1254 | page_address(data) + pad + | |
1255 | sw_rx_data->page_offset, len); | |
1256 | qede_reuse_page(edev, rxq, sw_rx_data); | |
1257 | } else { | |
1258 | struct skb_frag_struct *frag; | |
1259 | unsigned int pull_len; | |
1260 | unsigned char *va; | |
1261 | ||
1262 | frag = &skb_shinfo(skb)->frags[0]; | |
1263 | ||
1264 | skb_add_rx_frag(skb, skb_shinfo(skb)->nr_frags, data, | |
1265 | pad + sw_rx_data->page_offset, | |
1266 | len, rxq->rx_buf_seg_size); | |
1267 | ||
1268 | va = skb_frag_address(frag); | |
1269 | pull_len = eth_get_headlen(va, QEDE_RX_HDR_SIZE); | |
1270 | ||
1271 | /* Align the pull_len to optimize memcpy */ | |
1272 | memcpy(skb->data, va, ALIGN(pull_len, sizeof(long))); | |
1273 | ||
1274 | skb_frag_size_sub(frag, pull_len); | |
1275 | frag->page_offset += pull_len; | |
1276 | skb->data_len -= pull_len; | |
1277 | skb->tail += pull_len; | |
1278 | ||
1279 | if (unlikely(qede_realloc_rx_buffer(edev, rxq, | |
1280 | sw_rx_data))) { | |
1281 | DP_ERR(edev, "Failed to allocate rx buffer\n"); | |
1282 | rxq->rx_alloc_errors++; | |
1283 | goto next_cqe; | |
1284 | } | |
2950219d YM |
1285 | } |
1286 | ||
fc48b7a6 YM |
1287 | if (fp_cqe->bd_num != 1) { |
1288 | u16 pkt_len = le16_to_cpu(fp_cqe->pkt_len); | |
1289 | u8 num_frags; | |
1290 | ||
1291 | pkt_len -= len; | |
1292 | ||
1293 | for (num_frags = fp_cqe->bd_num - 1; num_frags > 0; | |
1294 | num_frags--) { | |
1295 | u16 cur_size = pkt_len > rxq->rx_buf_size ? | |
1296 | rxq->rx_buf_size : pkt_len; | |
1297 | ||
1298 | WARN_ONCE(!cur_size, | |
1299 | "Still got %d BDs for mapping jumbo, but length became 0\n", | |
1300 | num_frags); | |
1301 | ||
1302 | if (unlikely(qede_alloc_rx_buffer(edev, rxq))) | |
1303 | goto next_cqe; | |
1304 | ||
1305 | rxq->sw_rx_cons++; | |
1306 | sw_rx_index = rxq->sw_rx_cons & NUM_RX_BDS_MAX; | |
1307 | sw_rx_data = &rxq->sw_rx_ring[sw_rx_index]; | |
1308 | qed_chain_consume(&rxq->rx_bd_ring); | |
1309 | dma_unmap_page(&edev->pdev->dev, | |
1310 | sw_rx_data->mapping, | |
1311 | PAGE_SIZE, DMA_FROM_DEVICE); | |
1312 | ||
1313 | skb_fill_page_desc(skb, | |
1314 | skb_shinfo(skb)->nr_frags++, | |
1315 | sw_rx_data->data, 0, | |
1316 | cur_size); | |
1317 | ||
1318 | skb->truesize += PAGE_SIZE; | |
1319 | skb->data_len += cur_size; | |
1320 | skb->len += cur_size; | |
1321 | pkt_len -= cur_size; | |
1322 | } | |
2950219d | 1323 | |
fc48b7a6 YM |
1324 | if (pkt_len) |
1325 | DP_ERR(edev, | |
1326 | "Mapped all BDs of jumbo, but still have %d bytes\n", | |
1327 | pkt_len); | |
1328 | } | |
2950219d YM |
1329 | |
1330 | skb->protocol = eth_type_trans(skb, edev->ndev); | |
1331 | ||
1332 | rx_hash = qede_get_rxhash(edev, fp_cqe->bitfields, | |
1333 | fp_cqe->rss_hash, | |
1334 | &rxhash_type); | |
1335 | ||
1336 | skb_set_hash(skb, rx_hash, rxhash_type); | |
1337 | ||
1338 | qede_set_skb_csum(skb, csum_flag); | |
1339 | ||
1340 | skb_record_rx_queue(skb, fp->rss_id); | |
1341 | ||
1342 | qede_skb_receive(edev, fp, skb, le16_to_cpu(fp_cqe->vlan_tag)); | |
1343 | ||
1344 | qed_chain_consume(&rxq->rx_bd_ring); | |
2950219d YM |
1345 | next_rx: |
1346 | rxq->sw_rx_cons++; | |
55482edc | 1347 | next_rx_only: |
2950219d YM |
1348 | rx_pkt++; |
1349 | ||
1350 | next_cqe: /* don't consume bd rx buffer */ | |
1351 | qed_chain_recycle_consumed(&rxq->rx_comp_ring); | |
1352 | sw_comp_cons = qed_chain_get_cons_idx(&rxq->rx_comp_ring); | |
1353 | /* CR TPA - revisit how to handle budget in TPA perhaps | |
1354 | * increase on "end" | |
1355 | */ | |
1356 | if (rx_pkt == budget) | |
1357 | break; | |
1358 | } /* repeat while sw_comp_cons != hw_comp_cons... */ | |
1359 | ||
1360 | /* Update producers */ | |
1361 | qede_update_rx_prod(edev, rxq); | |
1362 | ||
1363 | return rx_pkt; | |
1364 | } | |
1365 | ||
1366 | static int qede_poll(struct napi_struct *napi, int budget) | |
1367 | { | |
1368 | int work_done = 0; | |
1369 | struct qede_fastpath *fp = container_of(napi, struct qede_fastpath, | |
1370 | napi); | |
1371 | struct qede_dev *edev = fp->edev; | |
1372 | ||
1373 | while (1) { | |
1374 | u8 tc; | |
1375 | ||
1376 | for (tc = 0; tc < edev->num_tc; tc++) | |
1377 | if (qede_txq_has_work(&fp->txqs[tc])) | |
1378 | qede_tx_int(edev, &fp->txqs[tc]); | |
1379 | ||
1380 | if (qede_has_rx_work(fp->rxq)) { | |
1381 | work_done += qede_rx_int(fp, budget - work_done); | |
1382 | ||
1383 | /* must not complete if we consumed full budget */ | |
1384 | if (work_done >= budget) | |
1385 | break; | |
1386 | } | |
1387 | ||
1388 | /* Fall out from the NAPI loop if needed */ | |
1389 | if (!(qede_has_rx_work(fp->rxq) || qede_has_tx_work(fp))) { | |
1390 | qed_sb_update_sb_idx(fp->sb_info); | |
1391 | /* *_has_*_work() reads the status block, | |
1392 | * thus we need to ensure that status block indices | |
1393 | * have been actually read (qed_sb_update_sb_idx) | |
1394 | * prior to this check (*_has_*_work) so that | |
1395 | * we won't write the "newer" value of the status block | |
1396 | * to HW (if there was a DMA right after | |
1397 | * qede_has_rx_work and if there is no rmb, the memory | |
1398 | * reading (qed_sb_update_sb_idx) may be postponed | |
1399 | * to right before *_ack_sb). In this case there | |
1400 | * will never be another interrupt until there is | |
1401 | * another update of the status block, while there | |
1402 | * is still unhandled work. | |
1403 | */ | |
1404 | rmb(); | |
1405 | ||
1406 | if (!(qede_has_rx_work(fp->rxq) || | |
1407 | qede_has_tx_work(fp))) { | |
1408 | napi_complete(napi); | |
1409 | /* Update and reenable interrupts */ | |
1410 | qed_sb_ack(fp->sb_info, IGU_INT_ENABLE, | |
1411 | 1 /*update*/); | |
1412 | break; | |
1413 | } | |
1414 | } | |
1415 | } | |
1416 | ||
1417 | return work_done; | |
1418 | } | |
1419 | ||
1420 | static irqreturn_t qede_msix_fp_int(int irq, void *fp_cookie) | |
1421 | { | |
1422 | struct qede_fastpath *fp = fp_cookie; | |
1423 | ||
1424 | qed_sb_ack(fp->sb_info, IGU_INT_DISABLE, 0 /*do not update*/); | |
1425 | ||
1426 | napi_schedule_irqoff(&fp->napi); | |
1427 | return IRQ_HANDLED; | |
1428 | } | |
1429 | ||
1430 | /* ------------------------------------------------------------------------- | |
1431 | * END OF FAST-PATH | |
1432 | * ------------------------------------------------------------------------- | |
1433 | */ | |
1434 | ||
1435 | static int qede_open(struct net_device *ndev); | |
1436 | static int qede_close(struct net_device *ndev); | |
0d8e0aa0 SK |
1437 | static int qede_set_mac_addr(struct net_device *ndev, void *p); |
1438 | static void qede_set_rx_mode(struct net_device *ndev); | |
1439 | static void qede_config_rx_mode(struct net_device *ndev); | |
1440 | ||
1441 | static int qede_set_ucast_rx_mac(struct qede_dev *edev, | |
1442 | enum qed_filter_xcast_params_type opcode, | |
1443 | unsigned char mac[ETH_ALEN]) | |
1444 | { | |
1445 | struct qed_filter_params filter_cmd; | |
1446 | ||
1447 | memset(&filter_cmd, 0, sizeof(filter_cmd)); | |
1448 | filter_cmd.type = QED_FILTER_TYPE_UCAST; | |
1449 | filter_cmd.filter.ucast.type = opcode; | |
1450 | filter_cmd.filter.ucast.mac_valid = 1; | |
1451 | ether_addr_copy(filter_cmd.filter.ucast.mac, mac); | |
1452 | ||
1453 | return edev->ops->filter_config(edev->cdev, &filter_cmd); | |
1454 | } | |
1455 | ||
7c1bfcad SRK |
1456 | static int qede_set_ucast_rx_vlan(struct qede_dev *edev, |
1457 | enum qed_filter_xcast_params_type opcode, | |
1458 | u16 vid) | |
1459 | { | |
1460 | struct qed_filter_params filter_cmd; | |
1461 | ||
1462 | memset(&filter_cmd, 0, sizeof(filter_cmd)); | |
1463 | filter_cmd.type = QED_FILTER_TYPE_UCAST; | |
1464 | filter_cmd.filter.ucast.type = opcode; | |
1465 | filter_cmd.filter.ucast.vlan_valid = 1; | |
1466 | filter_cmd.filter.ucast.vlan = vid; | |
1467 | ||
1468 | return edev->ops->filter_config(edev->cdev, &filter_cmd); | |
1469 | } | |
1470 | ||
133fac0e SK |
1471 | void qede_fill_by_demand_stats(struct qede_dev *edev) |
1472 | { | |
1473 | struct qed_eth_stats stats; | |
1474 | ||
1475 | edev->ops->get_vport_stats(edev->cdev, &stats); | |
1476 | edev->stats.no_buff_discards = stats.no_buff_discards; | |
1477 | edev->stats.rx_ucast_bytes = stats.rx_ucast_bytes; | |
1478 | edev->stats.rx_mcast_bytes = stats.rx_mcast_bytes; | |
1479 | edev->stats.rx_bcast_bytes = stats.rx_bcast_bytes; | |
1480 | edev->stats.rx_ucast_pkts = stats.rx_ucast_pkts; | |
1481 | edev->stats.rx_mcast_pkts = stats.rx_mcast_pkts; | |
1482 | edev->stats.rx_bcast_pkts = stats.rx_bcast_pkts; | |
1483 | edev->stats.mftag_filter_discards = stats.mftag_filter_discards; | |
1484 | edev->stats.mac_filter_discards = stats.mac_filter_discards; | |
1485 | ||
1486 | edev->stats.tx_ucast_bytes = stats.tx_ucast_bytes; | |
1487 | edev->stats.tx_mcast_bytes = stats.tx_mcast_bytes; | |
1488 | edev->stats.tx_bcast_bytes = stats.tx_bcast_bytes; | |
1489 | edev->stats.tx_ucast_pkts = stats.tx_ucast_pkts; | |
1490 | edev->stats.tx_mcast_pkts = stats.tx_mcast_pkts; | |
1491 | edev->stats.tx_bcast_pkts = stats.tx_bcast_pkts; | |
1492 | edev->stats.tx_err_drop_pkts = stats.tx_err_drop_pkts; | |
1493 | edev->stats.coalesced_pkts = stats.tpa_coalesced_pkts; | |
1494 | edev->stats.coalesced_events = stats.tpa_coalesced_events; | |
1495 | edev->stats.coalesced_aborts_num = stats.tpa_aborts_num; | |
1496 | edev->stats.non_coalesced_pkts = stats.tpa_not_coalesced_pkts; | |
1497 | edev->stats.coalesced_bytes = stats.tpa_coalesced_bytes; | |
1498 | ||
1499 | edev->stats.rx_64_byte_packets = stats.rx_64_byte_packets; | |
1500 | edev->stats.rx_127_byte_packets = stats.rx_127_byte_packets; | |
1501 | edev->stats.rx_255_byte_packets = stats.rx_255_byte_packets; | |
1502 | edev->stats.rx_511_byte_packets = stats.rx_511_byte_packets; | |
1503 | edev->stats.rx_1023_byte_packets = stats.rx_1023_byte_packets; | |
1504 | edev->stats.rx_1518_byte_packets = stats.rx_1518_byte_packets; | |
1505 | edev->stats.rx_1522_byte_packets = stats.rx_1522_byte_packets; | |
1506 | edev->stats.rx_2047_byte_packets = stats.rx_2047_byte_packets; | |
1507 | edev->stats.rx_4095_byte_packets = stats.rx_4095_byte_packets; | |
1508 | edev->stats.rx_9216_byte_packets = stats.rx_9216_byte_packets; | |
1509 | edev->stats.rx_16383_byte_packets = stats.rx_16383_byte_packets; | |
1510 | edev->stats.rx_crc_errors = stats.rx_crc_errors; | |
1511 | edev->stats.rx_mac_crtl_frames = stats.rx_mac_crtl_frames; | |
1512 | edev->stats.rx_pause_frames = stats.rx_pause_frames; | |
1513 | edev->stats.rx_pfc_frames = stats.rx_pfc_frames; | |
1514 | edev->stats.rx_align_errors = stats.rx_align_errors; | |
1515 | edev->stats.rx_carrier_errors = stats.rx_carrier_errors; | |
1516 | edev->stats.rx_oversize_packets = stats.rx_oversize_packets; | |
1517 | edev->stats.rx_jabbers = stats.rx_jabbers; | |
1518 | edev->stats.rx_undersize_packets = stats.rx_undersize_packets; | |
1519 | edev->stats.rx_fragments = stats.rx_fragments; | |
1520 | edev->stats.tx_64_byte_packets = stats.tx_64_byte_packets; | |
1521 | edev->stats.tx_65_to_127_byte_packets = stats.tx_65_to_127_byte_packets; | |
1522 | edev->stats.tx_128_to_255_byte_packets = | |
1523 | stats.tx_128_to_255_byte_packets; | |
1524 | edev->stats.tx_256_to_511_byte_packets = | |
1525 | stats.tx_256_to_511_byte_packets; | |
1526 | edev->stats.tx_512_to_1023_byte_packets = | |
1527 | stats.tx_512_to_1023_byte_packets; | |
1528 | edev->stats.tx_1024_to_1518_byte_packets = | |
1529 | stats.tx_1024_to_1518_byte_packets; | |
1530 | edev->stats.tx_1519_to_2047_byte_packets = | |
1531 | stats.tx_1519_to_2047_byte_packets; | |
1532 | edev->stats.tx_2048_to_4095_byte_packets = | |
1533 | stats.tx_2048_to_4095_byte_packets; | |
1534 | edev->stats.tx_4096_to_9216_byte_packets = | |
1535 | stats.tx_4096_to_9216_byte_packets; | |
1536 | edev->stats.tx_9217_to_16383_byte_packets = | |
1537 | stats.tx_9217_to_16383_byte_packets; | |
1538 | edev->stats.tx_pause_frames = stats.tx_pause_frames; | |
1539 | edev->stats.tx_pfc_frames = stats.tx_pfc_frames; | |
1540 | edev->stats.tx_lpi_entry_count = stats.tx_lpi_entry_count; | |
1541 | edev->stats.tx_total_collisions = stats.tx_total_collisions; | |
1542 | edev->stats.brb_truncates = stats.brb_truncates; | |
1543 | edev->stats.brb_discards = stats.brb_discards; | |
1544 | edev->stats.tx_mac_ctrl_frames = stats.tx_mac_ctrl_frames; | |
1545 | } | |
1546 | ||
1547 | static struct rtnl_link_stats64 *qede_get_stats64( | |
1548 | struct net_device *dev, | |
1549 | struct rtnl_link_stats64 *stats) | |
1550 | { | |
1551 | struct qede_dev *edev = netdev_priv(dev); | |
1552 | ||
1553 | qede_fill_by_demand_stats(edev); | |
1554 | ||
1555 | stats->rx_packets = edev->stats.rx_ucast_pkts + | |
1556 | edev->stats.rx_mcast_pkts + | |
1557 | edev->stats.rx_bcast_pkts; | |
1558 | stats->tx_packets = edev->stats.tx_ucast_pkts + | |
1559 | edev->stats.tx_mcast_pkts + | |
1560 | edev->stats.tx_bcast_pkts; | |
1561 | ||
1562 | stats->rx_bytes = edev->stats.rx_ucast_bytes + | |
1563 | edev->stats.rx_mcast_bytes + | |
1564 | edev->stats.rx_bcast_bytes; | |
1565 | ||
1566 | stats->tx_bytes = edev->stats.tx_ucast_bytes + | |
1567 | edev->stats.tx_mcast_bytes + | |
1568 | edev->stats.tx_bcast_bytes; | |
1569 | ||
1570 | stats->tx_errors = edev->stats.tx_err_drop_pkts; | |
1571 | stats->multicast = edev->stats.rx_mcast_pkts + | |
1572 | edev->stats.rx_bcast_pkts; | |
1573 | ||
1574 | stats->rx_fifo_errors = edev->stats.no_buff_discards; | |
1575 | ||
1576 | stats->collisions = edev->stats.tx_total_collisions; | |
1577 | stats->rx_crc_errors = edev->stats.rx_crc_errors; | |
1578 | stats->rx_frame_errors = edev->stats.rx_align_errors; | |
1579 | ||
1580 | return stats; | |
1581 | } | |
1582 | ||
7c1bfcad SRK |
1583 | static void qede_config_accept_any_vlan(struct qede_dev *edev, bool action) |
1584 | { | |
1585 | struct qed_update_vport_params params; | |
1586 | int rc; | |
1587 | ||
1588 | /* Proceed only if action actually needs to be performed */ | |
1589 | if (edev->accept_any_vlan == action) | |
1590 | return; | |
1591 | ||
1592 | memset(¶ms, 0, sizeof(params)); | |
1593 | ||
1594 | params.vport_id = 0; | |
1595 | params.accept_any_vlan = action; | |
1596 | params.update_accept_any_vlan_flg = 1; | |
1597 | ||
1598 | rc = edev->ops->vport_update(edev->cdev, ¶ms); | |
1599 | if (rc) { | |
1600 | DP_ERR(edev, "Failed to %s accept-any-vlan\n", | |
1601 | action ? "enable" : "disable"); | |
1602 | } else { | |
1603 | DP_INFO(edev, "%s accept-any-vlan\n", | |
1604 | action ? "enabled" : "disabled"); | |
1605 | edev->accept_any_vlan = action; | |
1606 | } | |
1607 | } | |
1608 | ||
1609 | static int qede_vlan_rx_add_vid(struct net_device *dev, __be16 proto, u16 vid) | |
1610 | { | |
1611 | struct qede_dev *edev = netdev_priv(dev); | |
1612 | struct qede_vlan *vlan, *tmp; | |
1613 | int rc; | |
1614 | ||
1615 | DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan 0x%04x\n", vid); | |
1616 | ||
1617 | vlan = kzalloc(sizeof(*vlan), GFP_KERNEL); | |
1618 | if (!vlan) { | |
1619 | DP_INFO(edev, "Failed to allocate struct for vlan\n"); | |
1620 | return -ENOMEM; | |
1621 | } | |
1622 | INIT_LIST_HEAD(&vlan->list); | |
1623 | vlan->vid = vid; | |
1624 | vlan->configured = false; | |
1625 | ||
1626 | /* Verify vlan isn't already configured */ | |
1627 | list_for_each_entry(tmp, &edev->vlan_list, list) { | |
1628 | if (tmp->vid == vlan->vid) { | |
1629 | DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), | |
1630 | "vlan already configured\n"); | |
1631 | kfree(vlan); | |
1632 | return -EEXIST; | |
1633 | } | |
1634 | } | |
1635 | ||
1636 | /* If interface is down, cache this VLAN ID and return */ | |
1637 | if (edev->state != QEDE_STATE_OPEN) { | |
1638 | DP_VERBOSE(edev, NETIF_MSG_IFDOWN, | |
1639 | "Interface is down, VLAN %d will be configured when interface is up\n", | |
1640 | vid); | |
1641 | if (vid != 0) | |
1642 | edev->non_configured_vlans++; | |
1643 | list_add(&vlan->list, &edev->vlan_list); | |
1644 | ||
1645 | return 0; | |
1646 | } | |
1647 | ||
1648 | /* Check for the filter limit. | |
1649 | * Note - vlan0 has a reserved filter and can be added without | |
1650 | * worrying about quota | |
1651 | */ | |
1652 | if ((edev->configured_vlans < edev->dev_info.num_vlan_filters) || | |
1653 | (vlan->vid == 0)) { | |
1654 | rc = qede_set_ucast_rx_vlan(edev, | |
1655 | QED_FILTER_XCAST_TYPE_ADD, | |
1656 | vlan->vid); | |
1657 | if (rc) { | |
1658 | DP_ERR(edev, "Failed to configure VLAN %d\n", | |
1659 | vlan->vid); | |
1660 | kfree(vlan); | |
1661 | return -EINVAL; | |
1662 | } | |
1663 | vlan->configured = true; | |
1664 | ||
1665 | /* vlan0 filter isn't consuming out of our quota */ | |
1666 | if (vlan->vid != 0) | |
1667 | edev->configured_vlans++; | |
1668 | } else { | |
1669 | /* Out of quota; Activate accept-any-VLAN mode */ | |
1670 | if (!edev->non_configured_vlans) | |
1671 | qede_config_accept_any_vlan(edev, true); | |
1672 | ||
1673 | edev->non_configured_vlans++; | |
1674 | } | |
1675 | ||
1676 | list_add(&vlan->list, &edev->vlan_list); | |
1677 | ||
1678 | return 0; | |
1679 | } | |
1680 | ||
1681 | static void qede_del_vlan_from_list(struct qede_dev *edev, | |
1682 | struct qede_vlan *vlan) | |
1683 | { | |
1684 | /* vlan0 filter isn't consuming out of our quota */ | |
1685 | if (vlan->vid != 0) { | |
1686 | if (vlan->configured) | |
1687 | edev->configured_vlans--; | |
1688 | else | |
1689 | edev->non_configured_vlans--; | |
1690 | } | |
1691 | ||
1692 | list_del(&vlan->list); | |
1693 | kfree(vlan); | |
1694 | } | |
1695 | ||
1696 | static int qede_configure_vlan_filters(struct qede_dev *edev) | |
1697 | { | |
1698 | int rc = 0, real_rc = 0, accept_any_vlan = 0; | |
1699 | struct qed_dev_eth_info *dev_info; | |
1700 | struct qede_vlan *vlan = NULL; | |
1701 | ||
1702 | if (list_empty(&edev->vlan_list)) | |
1703 | return 0; | |
1704 | ||
1705 | dev_info = &edev->dev_info; | |
1706 | ||
1707 | /* Configure non-configured vlans */ | |
1708 | list_for_each_entry(vlan, &edev->vlan_list, list) { | |
1709 | if (vlan->configured) | |
1710 | continue; | |
1711 | ||
1712 | /* We have used all our credits, now enable accept_any_vlan */ | |
1713 | if ((vlan->vid != 0) && | |
1714 | (edev->configured_vlans == dev_info->num_vlan_filters)) { | |
1715 | accept_any_vlan = 1; | |
1716 | continue; | |
1717 | } | |
1718 | ||
1719 | DP_VERBOSE(edev, NETIF_MSG_IFUP, "Adding vlan %d\n", vlan->vid); | |
1720 | ||
1721 | rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_ADD, | |
1722 | vlan->vid); | |
1723 | if (rc) { | |
1724 | DP_ERR(edev, "Failed to configure VLAN %u\n", | |
1725 | vlan->vid); | |
1726 | real_rc = rc; | |
1727 | continue; | |
1728 | } | |
1729 | ||
1730 | vlan->configured = true; | |
1731 | /* vlan0 filter doesn't consume our VLAN filter's quota */ | |
1732 | if (vlan->vid != 0) { | |
1733 | edev->non_configured_vlans--; | |
1734 | edev->configured_vlans++; | |
1735 | } | |
1736 | } | |
1737 | ||
1738 | /* enable accept_any_vlan mode if we have more VLANs than credits, | |
1739 | * or remove accept_any_vlan mode if we've actually removed | |
1740 | * a non-configured vlan, and all remaining vlans are truly configured. | |
1741 | */ | |
1742 | ||
1743 | if (accept_any_vlan) | |
1744 | qede_config_accept_any_vlan(edev, true); | |
1745 | else if (!edev->non_configured_vlans) | |
1746 | qede_config_accept_any_vlan(edev, false); | |
1747 | ||
1748 | return real_rc; | |
1749 | } | |
1750 | ||
1751 | static int qede_vlan_rx_kill_vid(struct net_device *dev, __be16 proto, u16 vid) | |
1752 | { | |
1753 | struct qede_dev *edev = netdev_priv(dev); | |
1754 | struct qede_vlan *vlan = NULL; | |
1755 | int rc; | |
1756 | ||
1757 | DP_VERBOSE(edev, NETIF_MSG_IFDOWN, "Removing vlan 0x%04x\n", vid); | |
1758 | ||
1759 | /* Find whether entry exists */ | |
1760 | list_for_each_entry(vlan, &edev->vlan_list, list) | |
1761 | if (vlan->vid == vid) | |
1762 | break; | |
1763 | ||
1764 | if (!vlan || (vlan->vid != vid)) { | |
1765 | DP_VERBOSE(edev, (NETIF_MSG_IFUP | NETIF_MSG_IFDOWN), | |
1766 | "Vlan isn't configured\n"); | |
1767 | return 0; | |
1768 | } | |
1769 | ||
1770 | if (edev->state != QEDE_STATE_OPEN) { | |
1771 | /* As interface is already down, we don't have a VPORT | |
1772 | * instance to remove vlan filter. So just update vlan list | |
1773 | */ | |
1774 | DP_VERBOSE(edev, NETIF_MSG_IFDOWN, | |
1775 | "Interface is down, removing VLAN from list only\n"); | |
1776 | qede_del_vlan_from_list(edev, vlan); | |
1777 | return 0; | |
1778 | } | |
1779 | ||
1780 | /* Remove vlan */ | |
1781 | rc = qede_set_ucast_rx_vlan(edev, QED_FILTER_XCAST_TYPE_DEL, vid); | |
1782 | if (rc) { | |
1783 | DP_ERR(edev, "Failed to remove VLAN %d\n", vid); | |
1784 | return -EINVAL; | |
1785 | } | |
1786 | ||
1787 | qede_del_vlan_from_list(edev, vlan); | |
1788 | ||
1789 | /* We have removed a VLAN - try to see if we can | |
1790 | * configure non-configured VLAN from the list. | |
1791 | */ | |
1792 | rc = qede_configure_vlan_filters(edev); | |
1793 | ||
1794 | return rc; | |
1795 | } | |
1796 | ||
1797 | static void qede_vlan_mark_nonconfigured(struct qede_dev *edev) | |
1798 | { | |
1799 | struct qede_vlan *vlan = NULL; | |
1800 | ||
1801 | if (list_empty(&edev->vlan_list)) | |
1802 | return; | |
1803 | ||
1804 | list_for_each_entry(vlan, &edev->vlan_list, list) { | |
1805 | if (!vlan->configured) | |
1806 | continue; | |
1807 | ||
1808 | vlan->configured = false; | |
1809 | ||
1810 | /* vlan0 filter isn't consuming out of our quota */ | |
1811 | if (vlan->vid != 0) { | |
1812 | edev->non_configured_vlans++; | |
1813 | edev->configured_vlans--; | |
1814 | } | |
1815 | ||
1816 | DP_VERBOSE(edev, NETIF_MSG_IFDOWN, | |
1817 | "marked vlan %d as non-configured\n", | |
1818 | vlan->vid); | |
1819 | } | |
1820 | ||
1821 | edev->accept_any_vlan = false; | |
1822 | } | |
1823 | ||
2950219d YM |
1824 | static const struct net_device_ops qede_netdev_ops = { |
1825 | .ndo_open = qede_open, | |
1826 | .ndo_stop = qede_close, | |
1827 | .ndo_start_xmit = qede_start_xmit, | |
0d8e0aa0 SK |
1828 | .ndo_set_rx_mode = qede_set_rx_mode, |
1829 | .ndo_set_mac_address = qede_set_mac_addr, | |
2950219d | 1830 | .ndo_validate_addr = eth_validate_addr, |
133fac0e | 1831 | .ndo_change_mtu = qede_change_mtu, |
7c1bfcad SRK |
1832 | .ndo_vlan_rx_add_vid = qede_vlan_rx_add_vid, |
1833 | .ndo_vlan_rx_kill_vid = qede_vlan_rx_kill_vid, | |
133fac0e | 1834 | .ndo_get_stats64 = qede_get_stats64, |
2950219d YM |
1835 | }; |
1836 | ||
e712d52b YM |
1837 | /* ------------------------------------------------------------------------- |
1838 | * START OF PROBE / REMOVE | |
1839 | * ------------------------------------------------------------------------- | |
1840 | */ | |
1841 | ||
1842 | static struct qede_dev *qede_alloc_etherdev(struct qed_dev *cdev, | |
1843 | struct pci_dev *pdev, | |
1844 | struct qed_dev_eth_info *info, | |
1845 | u32 dp_module, | |
1846 | u8 dp_level) | |
1847 | { | |
1848 | struct net_device *ndev; | |
1849 | struct qede_dev *edev; | |
1850 | ||
1851 | ndev = alloc_etherdev_mqs(sizeof(*edev), | |
1852 | info->num_queues, | |
1853 | info->num_queues); | |
1854 | if (!ndev) { | |
1855 | pr_err("etherdev allocation failed\n"); | |
1856 | return NULL; | |
1857 | } | |
1858 | ||
1859 | edev = netdev_priv(ndev); | |
1860 | edev->ndev = ndev; | |
1861 | edev->cdev = cdev; | |
1862 | edev->pdev = pdev; | |
1863 | edev->dp_module = dp_module; | |
1864 | edev->dp_level = dp_level; | |
1865 | edev->ops = qed_ops; | |
2950219d YM |
1866 | edev->q_num_rx_buffers = NUM_RX_BDS_DEF; |
1867 | edev->q_num_tx_buffers = NUM_TX_BDS_DEF; | |
e712d52b YM |
1868 | |
1869 | DP_INFO(edev, "Allocated netdev with 64 tx queues and 64 rx queues\n"); | |
1870 | ||
1871 | SET_NETDEV_DEV(ndev, &pdev->dev); | |
1872 | ||
133fac0e | 1873 | memset(&edev->stats, 0, sizeof(edev->stats)); |
e712d52b YM |
1874 | memcpy(&edev->dev_info, info, sizeof(*info)); |
1875 | ||
1876 | edev->num_tc = edev->dev_info.num_tc; | |
1877 | ||
7c1bfcad SRK |
1878 | INIT_LIST_HEAD(&edev->vlan_list); |
1879 | ||
e712d52b YM |
1880 | return edev; |
1881 | } | |
1882 | ||
1883 | static void qede_init_ndev(struct qede_dev *edev) | |
1884 | { | |
1885 | struct net_device *ndev = edev->ndev; | |
1886 | struct pci_dev *pdev = edev->pdev; | |
1887 | u32 hw_features; | |
1888 | ||
1889 | pci_set_drvdata(pdev, ndev); | |
1890 | ||
1891 | ndev->mem_start = edev->dev_info.common.pci_mem_start; | |
1892 | ndev->base_addr = ndev->mem_start; | |
1893 | ndev->mem_end = edev->dev_info.common.pci_mem_end; | |
1894 | ndev->irq = edev->dev_info.common.pci_irq; | |
1895 | ||
1896 | ndev->watchdog_timeo = TX_TIMEOUT; | |
1897 | ||
2950219d YM |
1898 | ndev->netdev_ops = &qede_netdev_ops; |
1899 | ||
133fac0e SK |
1900 | qede_set_ethtool_ops(ndev); |
1901 | ||
e712d52b YM |
1902 | /* user-changeble features */ |
1903 | hw_features = NETIF_F_GRO | NETIF_F_SG | | |
1904 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
1905 | NETIF_F_TSO | NETIF_F_TSO6; | |
1906 | ||
1907 | ndev->vlan_features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | | |
1908 | NETIF_F_HIGHDMA; | |
1909 | ndev->features = hw_features | NETIF_F_RXHASH | NETIF_F_RXCSUM | | |
1910 | NETIF_F_HW_VLAN_CTAG_RX | NETIF_F_HIGHDMA | | |
7c1bfcad | 1911 | NETIF_F_HW_VLAN_CTAG_FILTER | NETIF_F_HW_VLAN_CTAG_TX; |
e712d52b YM |
1912 | |
1913 | ndev->hw_features = hw_features; | |
1914 | ||
1915 | /* Set network device HW mac */ | |
1916 | ether_addr_copy(edev->ndev->dev_addr, edev->dev_info.common.hw_mac); | |
1917 | } | |
1918 | ||
1919 | /* This function converts from 32b param to two params of level and module | |
1920 | * Input 32b decoding: | |
1921 | * b31 - enable all NOTICE prints. NOTICE prints are for deviation from the | |
1922 | * 'happy' flow, e.g. memory allocation failed. | |
1923 | * b30 - enable all INFO prints. INFO prints are for major steps in the flow | |
1924 | * and provide important parameters. | |
1925 | * b29-b0 - per-module bitmap, where each bit enables VERBOSE prints of that | |
1926 | * module. VERBOSE prints are for tracking the specific flow in low level. | |
1927 | * | |
1928 | * Notice that the level should be that of the lowest required logs. | |
1929 | */ | |
133fac0e | 1930 | void qede_config_debug(uint debug, u32 *p_dp_module, u8 *p_dp_level) |
e712d52b YM |
1931 | { |
1932 | *p_dp_level = QED_LEVEL_NOTICE; | |
1933 | *p_dp_module = 0; | |
1934 | ||
1935 | if (debug & QED_LOG_VERBOSE_MASK) { | |
1936 | *p_dp_level = QED_LEVEL_VERBOSE; | |
1937 | *p_dp_module = (debug & 0x3FFFFFFF); | |
1938 | } else if (debug & QED_LOG_INFO_MASK) { | |
1939 | *p_dp_level = QED_LEVEL_INFO; | |
1940 | } else if (debug & QED_LOG_NOTICE_MASK) { | |
1941 | *p_dp_level = QED_LEVEL_NOTICE; | |
1942 | } | |
1943 | } | |
1944 | ||
2950219d YM |
1945 | static void qede_free_fp_array(struct qede_dev *edev) |
1946 | { | |
1947 | if (edev->fp_array) { | |
1948 | struct qede_fastpath *fp; | |
1949 | int i; | |
1950 | ||
1951 | for_each_rss(i) { | |
1952 | fp = &edev->fp_array[i]; | |
1953 | ||
1954 | kfree(fp->sb_info); | |
1955 | kfree(fp->rxq); | |
1956 | kfree(fp->txqs); | |
1957 | } | |
1958 | kfree(edev->fp_array); | |
1959 | } | |
1960 | edev->num_rss = 0; | |
1961 | } | |
1962 | ||
1963 | static int qede_alloc_fp_array(struct qede_dev *edev) | |
1964 | { | |
1965 | struct qede_fastpath *fp; | |
1966 | int i; | |
1967 | ||
1968 | edev->fp_array = kcalloc(QEDE_RSS_CNT(edev), | |
1969 | sizeof(*edev->fp_array), GFP_KERNEL); | |
1970 | if (!edev->fp_array) { | |
1971 | DP_NOTICE(edev, "fp array allocation failed\n"); | |
1972 | goto err; | |
1973 | } | |
1974 | ||
1975 | for_each_rss(i) { | |
1976 | fp = &edev->fp_array[i]; | |
1977 | ||
1978 | fp->sb_info = kcalloc(1, sizeof(*fp->sb_info), GFP_KERNEL); | |
1979 | if (!fp->sb_info) { | |
1980 | DP_NOTICE(edev, "sb info struct allocation failed\n"); | |
1981 | goto err; | |
1982 | } | |
1983 | ||
1984 | fp->rxq = kcalloc(1, sizeof(*fp->rxq), GFP_KERNEL); | |
1985 | if (!fp->rxq) { | |
1986 | DP_NOTICE(edev, "RXQ struct allocation failed\n"); | |
1987 | goto err; | |
1988 | } | |
1989 | ||
1990 | fp->txqs = kcalloc(edev->num_tc, sizeof(*fp->txqs), GFP_KERNEL); | |
1991 | if (!fp->txqs) { | |
1992 | DP_NOTICE(edev, "TXQ array allocation failed\n"); | |
1993 | goto err; | |
1994 | } | |
1995 | } | |
1996 | ||
1997 | return 0; | |
1998 | err: | |
1999 | qede_free_fp_array(edev); | |
2000 | return -ENOMEM; | |
2001 | } | |
2002 | ||
0d8e0aa0 SK |
2003 | static void qede_sp_task(struct work_struct *work) |
2004 | { | |
2005 | struct qede_dev *edev = container_of(work, struct qede_dev, | |
2006 | sp_task.work); | |
2007 | mutex_lock(&edev->qede_lock); | |
2008 | ||
2009 | if (edev->state == QEDE_STATE_OPEN) { | |
2010 | if (test_and_clear_bit(QEDE_SP_RX_MODE, &edev->sp_flags)) | |
2011 | qede_config_rx_mode(edev->ndev); | |
2012 | } | |
2013 | ||
2014 | mutex_unlock(&edev->qede_lock); | |
2015 | } | |
2016 | ||
e712d52b YM |
2017 | static void qede_update_pf_params(struct qed_dev *cdev) |
2018 | { | |
2019 | struct qed_pf_params pf_params; | |
2020 | ||
2021 | /* 16 rx + 16 tx */ | |
2022 | memset(&pf_params, 0, sizeof(struct qed_pf_params)); | |
2023 | pf_params.eth_pf_params.num_cons = 32; | |
2024 | qed_ops->common->update_pf_params(cdev, &pf_params); | |
2025 | } | |
2026 | ||
2027 | enum qede_probe_mode { | |
2028 | QEDE_PROBE_NORMAL, | |
2029 | }; | |
2030 | ||
2031 | static int __qede_probe(struct pci_dev *pdev, u32 dp_module, u8 dp_level, | |
2032 | enum qede_probe_mode mode) | |
2033 | { | |
2034 | struct qed_slowpath_params params; | |
2035 | struct qed_dev_eth_info dev_info; | |
2036 | struct qede_dev *edev; | |
2037 | struct qed_dev *cdev; | |
2038 | int rc; | |
2039 | ||
2040 | if (unlikely(dp_level & QED_LEVEL_INFO)) | |
2041 | pr_notice("Starting qede probe\n"); | |
2042 | ||
2043 | cdev = qed_ops->common->probe(pdev, QED_PROTOCOL_ETH, | |
2044 | dp_module, dp_level); | |
2045 | if (!cdev) { | |
2046 | rc = -ENODEV; | |
2047 | goto err0; | |
2048 | } | |
2049 | ||
2050 | qede_update_pf_params(cdev); | |
2051 | ||
2052 | /* Start the Slowpath-process */ | |
2053 | memset(¶ms, 0, sizeof(struct qed_slowpath_params)); | |
2054 | params.int_mode = QED_INT_MODE_MSIX; | |
2055 | params.drv_major = QEDE_MAJOR_VERSION; | |
2056 | params.drv_minor = QEDE_MINOR_VERSION; | |
2057 | params.drv_rev = QEDE_REVISION_VERSION; | |
2058 | params.drv_eng = QEDE_ENGINEERING_VERSION; | |
2059 | strlcpy(params.name, "qede LAN", QED_DRV_VER_STR_SIZE); | |
2060 | rc = qed_ops->common->slowpath_start(cdev, ¶ms); | |
2061 | if (rc) { | |
2062 | pr_notice("Cannot start slowpath\n"); | |
2063 | goto err1; | |
2064 | } | |
2065 | ||
2066 | /* Learn information crucial for qede to progress */ | |
2067 | rc = qed_ops->fill_dev_info(cdev, &dev_info); | |
2068 | if (rc) | |
2069 | goto err2; | |
2070 | ||
2071 | edev = qede_alloc_etherdev(cdev, pdev, &dev_info, dp_module, | |
2072 | dp_level); | |
2073 | if (!edev) { | |
2074 | rc = -ENOMEM; | |
2075 | goto err2; | |
2076 | } | |
2077 | ||
2078 | qede_init_ndev(edev); | |
2079 | ||
2950219d YM |
2080 | rc = register_netdev(edev->ndev); |
2081 | if (rc) { | |
2082 | DP_NOTICE(edev, "Cannot register net-device\n"); | |
2083 | goto err3; | |
2084 | } | |
2085 | ||
e712d52b YM |
2086 | edev->ops->common->set_id(cdev, edev->ndev->name, DRV_MODULE_VERSION); |
2087 | ||
a2ec6172 SK |
2088 | edev->ops->register_ops(cdev, &qede_ll_ops, edev); |
2089 | ||
0d8e0aa0 SK |
2090 | INIT_DELAYED_WORK(&edev->sp_task, qede_sp_task); |
2091 | mutex_init(&edev->qede_lock); | |
2092 | ||
e712d52b YM |
2093 | DP_INFO(edev, "Ending successfully qede probe\n"); |
2094 | ||
2095 | return 0; | |
2096 | ||
2950219d YM |
2097 | err3: |
2098 | free_netdev(edev->ndev); | |
e712d52b YM |
2099 | err2: |
2100 | qed_ops->common->slowpath_stop(cdev); | |
2101 | err1: | |
2102 | qed_ops->common->remove(cdev); | |
2103 | err0: | |
2104 | return rc; | |
2105 | } | |
2106 | ||
2107 | static int qede_probe(struct pci_dev *pdev, const struct pci_device_id *id) | |
2108 | { | |
2109 | u32 dp_module = 0; | |
2110 | u8 dp_level = 0; | |
2111 | ||
2112 | qede_config_debug(debug, &dp_module, &dp_level); | |
2113 | ||
2114 | return __qede_probe(pdev, dp_module, dp_level, | |
2115 | QEDE_PROBE_NORMAL); | |
2116 | } | |
2117 | ||
2118 | enum qede_remove_mode { | |
2119 | QEDE_REMOVE_NORMAL, | |
2120 | }; | |
2121 | ||
2122 | static void __qede_remove(struct pci_dev *pdev, enum qede_remove_mode mode) | |
2123 | { | |
2124 | struct net_device *ndev = pci_get_drvdata(pdev); | |
2125 | struct qede_dev *edev = netdev_priv(ndev); | |
2126 | struct qed_dev *cdev = edev->cdev; | |
2127 | ||
2128 | DP_INFO(edev, "Starting qede_remove\n"); | |
2129 | ||
0d8e0aa0 | 2130 | cancel_delayed_work_sync(&edev->sp_task); |
2950219d YM |
2131 | unregister_netdev(ndev); |
2132 | ||
e712d52b YM |
2133 | edev->ops->common->set_power_state(cdev, PCI_D0); |
2134 | ||
2135 | pci_set_drvdata(pdev, NULL); | |
2136 | ||
2137 | free_netdev(ndev); | |
2138 | ||
2139 | /* Use global ops since we've freed edev */ | |
2140 | qed_ops->common->slowpath_stop(cdev); | |
2141 | qed_ops->common->remove(cdev); | |
2142 | ||
2143 | pr_notice("Ending successfully qede_remove\n"); | |
2144 | } | |
2145 | ||
2146 | static void qede_remove(struct pci_dev *pdev) | |
2147 | { | |
2148 | __qede_remove(pdev, QEDE_REMOVE_NORMAL); | |
2149 | } | |
2950219d YM |
2150 | |
2151 | /* ------------------------------------------------------------------------- | |
2152 | * START OF LOAD / UNLOAD | |
2153 | * ------------------------------------------------------------------------- | |
2154 | */ | |
2155 | ||
2156 | static int qede_set_num_queues(struct qede_dev *edev) | |
2157 | { | |
2158 | int rc; | |
2159 | u16 rss_num; | |
2160 | ||
2161 | /* Setup queues according to possible resources*/ | |
8edf049d SK |
2162 | if (edev->req_rss) |
2163 | rss_num = edev->req_rss; | |
2164 | else | |
2165 | rss_num = netif_get_num_default_rss_queues() * | |
2166 | edev->dev_info.common.num_hwfns; | |
2950219d YM |
2167 | |
2168 | rss_num = min_t(u16, QEDE_MAX_RSS_CNT(edev), rss_num); | |
2169 | ||
2170 | rc = edev->ops->common->set_fp_int(edev->cdev, rss_num); | |
2171 | if (rc > 0) { | |
2172 | /* Managed to request interrupts for our queues */ | |
2173 | edev->num_rss = rc; | |
2174 | DP_INFO(edev, "Managed %d [of %d] RSS queues\n", | |
2175 | QEDE_RSS_CNT(edev), rss_num); | |
2176 | rc = 0; | |
2177 | } | |
2178 | return rc; | |
2179 | } | |
2180 | ||
2181 | static void qede_free_mem_sb(struct qede_dev *edev, | |
2182 | struct qed_sb_info *sb_info) | |
2183 | { | |
2184 | if (sb_info->sb_virt) | |
2185 | dma_free_coherent(&edev->pdev->dev, sizeof(*sb_info->sb_virt), | |
2186 | (void *)sb_info->sb_virt, sb_info->sb_phys); | |
2187 | } | |
2188 | ||
2189 | /* This function allocates fast-path status block memory */ | |
2190 | static int qede_alloc_mem_sb(struct qede_dev *edev, | |
2191 | struct qed_sb_info *sb_info, | |
2192 | u16 sb_id) | |
2193 | { | |
2194 | struct status_block *sb_virt; | |
2195 | dma_addr_t sb_phys; | |
2196 | int rc; | |
2197 | ||
2198 | sb_virt = dma_alloc_coherent(&edev->pdev->dev, | |
2199 | sizeof(*sb_virt), | |
2200 | &sb_phys, GFP_KERNEL); | |
2201 | if (!sb_virt) { | |
2202 | DP_ERR(edev, "Status block allocation failed\n"); | |
2203 | return -ENOMEM; | |
2204 | } | |
2205 | ||
2206 | rc = edev->ops->common->sb_init(edev->cdev, sb_info, | |
2207 | sb_virt, sb_phys, sb_id, | |
2208 | QED_SB_TYPE_L2_QUEUE); | |
2209 | if (rc) { | |
2210 | DP_ERR(edev, "Status block initialization failed\n"); | |
2211 | dma_free_coherent(&edev->pdev->dev, sizeof(*sb_virt), | |
2212 | sb_virt, sb_phys); | |
2213 | return rc; | |
2214 | } | |
2215 | ||
2216 | return 0; | |
2217 | } | |
2218 | ||
2219 | static void qede_free_rx_buffers(struct qede_dev *edev, | |
2220 | struct qede_rx_queue *rxq) | |
2221 | { | |
2222 | u16 i; | |
2223 | ||
2224 | for (i = rxq->sw_rx_cons; i != rxq->sw_rx_prod; i++) { | |
2225 | struct sw_rx_data *rx_buf; | |
fc48b7a6 | 2226 | struct page *data; |
2950219d YM |
2227 | |
2228 | rx_buf = &rxq->sw_rx_ring[i & NUM_RX_BDS_MAX]; | |
2229 | data = rx_buf->data; | |
2230 | ||
fc48b7a6 YM |
2231 | dma_unmap_page(&edev->pdev->dev, |
2232 | rx_buf->mapping, | |
2233 | PAGE_SIZE, DMA_FROM_DEVICE); | |
2950219d YM |
2234 | |
2235 | rx_buf->data = NULL; | |
fc48b7a6 | 2236 | __free_page(data); |
2950219d YM |
2237 | } |
2238 | } | |
2239 | ||
55482edc MC |
2240 | static void qede_free_sge_mem(struct qede_dev *edev, |
2241 | struct qede_rx_queue *rxq) { | |
2242 | int i; | |
2243 | ||
2244 | if (edev->gro_disable) | |
2245 | return; | |
2246 | ||
2247 | for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { | |
2248 | struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; | |
2249 | struct sw_rx_data *replace_buf = &tpa_info->replace_buf; | |
2250 | ||
2251 | if (replace_buf) { | |
2252 | dma_unmap_page(&edev->pdev->dev, | |
2253 | dma_unmap_addr(replace_buf, mapping), | |
2254 | PAGE_SIZE, DMA_FROM_DEVICE); | |
2255 | __free_page(replace_buf->data); | |
2256 | } | |
2257 | } | |
2258 | } | |
2259 | ||
2950219d YM |
2260 | static void qede_free_mem_rxq(struct qede_dev *edev, |
2261 | struct qede_rx_queue *rxq) | |
2262 | { | |
55482edc MC |
2263 | qede_free_sge_mem(edev, rxq); |
2264 | ||
2950219d YM |
2265 | /* Free rx buffers */ |
2266 | qede_free_rx_buffers(edev, rxq); | |
2267 | ||
2268 | /* Free the parallel SW ring */ | |
2269 | kfree(rxq->sw_rx_ring); | |
2270 | ||
2271 | /* Free the real RQ ring used by FW */ | |
2272 | edev->ops->common->chain_free(edev->cdev, &rxq->rx_bd_ring); | |
2273 | edev->ops->common->chain_free(edev->cdev, &rxq->rx_comp_ring); | |
2274 | } | |
2275 | ||
2276 | static int qede_alloc_rx_buffer(struct qede_dev *edev, | |
2277 | struct qede_rx_queue *rxq) | |
2278 | { | |
2279 | struct sw_rx_data *sw_rx_data; | |
2280 | struct eth_rx_bd *rx_bd; | |
2281 | dma_addr_t mapping; | |
fc48b7a6 | 2282 | struct page *data; |
2950219d | 2283 | u16 rx_buf_size; |
2950219d YM |
2284 | |
2285 | rx_buf_size = rxq->rx_buf_size; | |
2286 | ||
fc48b7a6 | 2287 | data = alloc_pages(GFP_ATOMIC, 0); |
2950219d | 2288 | if (unlikely(!data)) { |
fc48b7a6 | 2289 | DP_NOTICE(edev, "Failed to allocate Rx data [page]\n"); |
2950219d YM |
2290 | return -ENOMEM; |
2291 | } | |
2292 | ||
fc48b7a6 YM |
2293 | /* Map the entire page as it would be used |
2294 | * for multiple RX buffer segment size mapping. | |
2295 | */ | |
2296 | mapping = dma_map_page(&edev->pdev->dev, data, 0, | |
2297 | PAGE_SIZE, DMA_FROM_DEVICE); | |
2950219d | 2298 | if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { |
fc48b7a6 | 2299 | __free_page(data); |
2950219d YM |
2300 | DP_NOTICE(edev, "Failed to map Rx buffer\n"); |
2301 | return -ENOMEM; | |
2302 | } | |
2303 | ||
2304 | sw_rx_data = &rxq->sw_rx_ring[rxq->sw_rx_prod & NUM_RX_BDS_MAX]; | |
fc48b7a6 | 2305 | sw_rx_data->page_offset = 0; |
2950219d | 2306 | sw_rx_data->data = data; |
fc48b7a6 | 2307 | sw_rx_data->mapping = mapping; |
2950219d YM |
2308 | |
2309 | /* Advance PROD and get BD pointer */ | |
2310 | rx_bd = (struct eth_rx_bd *)qed_chain_produce(&rxq->rx_bd_ring); | |
2311 | WARN_ON(!rx_bd); | |
2312 | rx_bd->addr.hi = cpu_to_le32(upper_32_bits(mapping)); | |
2313 | rx_bd->addr.lo = cpu_to_le32(lower_32_bits(mapping)); | |
2314 | ||
2315 | rxq->sw_rx_prod++; | |
2316 | ||
2317 | return 0; | |
2318 | } | |
2319 | ||
55482edc MC |
2320 | static int qede_alloc_sge_mem(struct qede_dev *edev, |
2321 | struct qede_rx_queue *rxq) | |
2322 | { | |
2323 | dma_addr_t mapping; | |
2324 | int i; | |
2325 | ||
2326 | if (edev->gro_disable) | |
2327 | return 0; | |
2328 | ||
2329 | if (edev->ndev->mtu > PAGE_SIZE) { | |
2330 | edev->gro_disable = 1; | |
2331 | return 0; | |
2332 | } | |
2333 | ||
2334 | for (i = 0; i < ETH_TPA_MAX_AGGS_NUM; i++) { | |
2335 | struct qede_agg_info *tpa_info = &rxq->tpa_info[i]; | |
2336 | struct sw_rx_data *replace_buf = &tpa_info->replace_buf; | |
2337 | ||
2338 | replace_buf->data = alloc_pages(GFP_ATOMIC, 0); | |
2339 | if (unlikely(!replace_buf->data)) { | |
2340 | DP_NOTICE(edev, | |
2341 | "Failed to allocate TPA skb pool [replacement buffer]\n"); | |
2342 | goto err; | |
2343 | } | |
2344 | ||
2345 | mapping = dma_map_page(&edev->pdev->dev, replace_buf->data, 0, | |
2346 | rxq->rx_buf_size, DMA_FROM_DEVICE); | |
2347 | if (unlikely(dma_mapping_error(&edev->pdev->dev, mapping))) { | |
2348 | DP_NOTICE(edev, | |
2349 | "Failed to map TPA replacement buffer\n"); | |
2350 | goto err; | |
2351 | } | |
2352 | ||
2353 | dma_unmap_addr_set(replace_buf, mapping, mapping); | |
2354 | tpa_info->replace_buf.page_offset = 0; | |
2355 | ||
2356 | tpa_info->replace_buf_mapping = mapping; | |
2357 | tpa_info->agg_state = QEDE_AGG_STATE_NONE; | |
2358 | } | |
2359 | ||
2360 | return 0; | |
2361 | err: | |
2362 | qede_free_sge_mem(edev, rxq); | |
2363 | edev->gro_disable = 1; | |
2364 | return -ENOMEM; | |
2365 | } | |
2366 | ||
2950219d YM |
2367 | /* This function allocates all memory needed per Rx queue */ |
2368 | static int qede_alloc_mem_rxq(struct qede_dev *edev, | |
2369 | struct qede_rx_queue *rxq) | |
2370 | { | |
2371 | int i, rc, size, num_allocated; | |
2372 | ||
2373 | rxq->num_rx_buffers = edev->q_num_rx_buffers; | |
2374 | ||
fc48b7a6 YM |
2375 | rxq->rx_buf_size = NET_IP_ALIGN + ETH_OVERHEAD + |
2376 | edev->ndev->mtu; | |
2377 | if (rxq->rx_buf_size > PAGE_SIZE) | |
2378 | rxq->rx_buf_size = PAGE_SIZE; | |
2379 | ||
2380 | /* Segment size to spilt a page in multiple equal parts */ | |
2381 | rxq->rx_buf_seg_size = roundup_pow_of_two(rxq->rx_buf_size); | |
2950219d YM |
2382 | |
2383 | /* Allocate the parallel driver ring for Rx buffers */ | |
fc48b7a6 | 2384 | size = sizeof(*rxq->sw_rx_ring) * RX_RING_SIZE; |
2950219d YM |
2385 | rxq->sw_rx_ring = kzalloc(size, GFP_KERNEL); |
2386 | if (!rxq->sw_rx_ring) { | |
2387 | DP_ERR(edev, "Rx buffers ring allocation failed\n"); | |
2388 | goto err; | |
2389 | } | |
2390 | ||
2391 | /* Allocate FW Rx ring */ | |
2392 | rc = edev->ops->common->chain_alloc(edev->cdev, | |
2393 | QED_CHAIN_USE_TO_CONSUME_PRODUCE, | |
2394 | QED_CHAIN_MODE_NEXT_PTR, | |
fc48b7a6 | 2395 | RX_RING_SIZE, |
2950219d YM |
2396 | sizeof(struct eth_rx_bd), |
2397 | &rxq->rx_bd_ring); | |
2398 | ||
2399 | if (rc) | |
2400 | goto err; | |
2401 | ||
2402 | /* Allocate FW completion ring */ | |
2403 | rc = edev->ops->common->chain_alloc(edev->cdev, | |
2404 | QED_CHAIN_USE_TO_CONSUME, | |
2405 | QED_CHAIN_MODE_PBL, | |
fc48b7a6 | 2406 | RX_RING_SIZE, |
2950219d YM |
2407 | sizeof(union eth_rx_cqe), |
2408 | &rxq->rx_comp_ring); | |
2409 | if (rc) | |
2410 | goto err; | |
2411 | ||
2412 | /* Allocate buffers for the Rx ring */ | |
2413 | for (i = 0; i < rxq->num_rx_buffers; i++) { | |
2414 | rc = qede_alloc_rx_buffer(edev, rxq); | |
2415 | if (rc) | |
2416 | break; | |
2417 | } | |
2418 | num_allocated = i; | |
2419 | if (!num_allocated) { | |
2420 | DP_ERR(edev, "Rx buffers allocation failed\n"); | |
2421 | goto err; | |
2422 | } else if (num_allocated < rxq->num_rx_buffers) { | |
2423 | DP_NOTICE(edev, | |
2424 | "Allocated less buffers than desired (%d allocated)\n", | |
2425 | num_allocated); | |
2426 | } | |
2427 | ||
55482edc MC |
2428 | qede_alloc_sge_mem(edev, rxq); |
2429 | ||
2950219d YM |
2430 | return 0; |
2431 | ||
2432 | err: | |
2433 | qede_free_mem_rxq(edev, rxq); | |
2434 | return -ENOMEM; | |
2435 | } | |
2436 | ||
2437 | static void qede_free_mem_txq(struct qede_dev *edev, | |
2438 | struct qede_tx_queue *txq) | |
2439 | { | |
2440 | /* Free the parallel SW ring */ | |
2441 | kfree(txq->sw_tx_ring); | |
2442 | ||
2443 | /* Free the real RQ ring used by FW */ | |
2444 | edev->ops->common->chain_free(edev->cdev, &txq->tx_pbl); | |
2445 | } | |
2446 | ||
2447 | /* This function allocates all memory needed per Tx queue */ | |
2448 | static int qede_alloc_mem_txq(struct qede_dev *edev, | |
2449 | struct qede_tx_queue *txq) | |
2450 | { | |
2451 | int size, rc; | |
2452 | union eth_tx_bd_types *p_virt; | |
2453 | ||
2454 | txq->num_tx_buffers = edev->q_num_tx_buffers; | |
2455 | ||
2456 | /* Allocate the parallel driver ring for Tx buffers */ | |
2457 | size = sizeof(*txq->sw_tx_ring) * NUM_TX_BDS_MAX; | |
2458 | txq->sw_tx_ring = kzalloc(size, GFP_KERNEL); | |
2459 | if (!txq->sw_tx_ring) { | |
2460 | DP_NOTICE(edev, "Tx buffers ring allocation failed\n"); | |
2461 | goto err; | |
2462 | } | |
2463 | ||
2464 | rc = edev->ops->common->chain_alloc(edev->cdev, | |
2465 | QED_CHAIN_USE_TO_CONSUME_PRODUCE, | |
2466 | QED_CHAIN_MODE_PBL, | |
2467 | NUM_TX_BDS_MAX, | |
2468 | sizeof(*p_virt), | |
2469 | &txq->tx_pbl); | |
2470 | if (rc) | |
2471 | goto err; | |
2472 | ||
2473 | return 0; | |
2474 | ||
2475 | err: | |
2476 | qede_free_mem_txq(edev, txq); | |
2477 | return -ENOMEM; | |
2478 | } | |
2479 | ||
2480 | /* This function frees all memory of a single fp */ | |
2481 | static void qede_free_mem_fp(struct qede_dev *edev, | |
2482 | struct qede_fastpath *fp) | |
2483 | { | |
2484 | int tc; | |
2485 | ||
2486 | qede_free_mem_sb(edev, fp->sb_info); | |
2487 | ||
2488 | qede_free_mem_rxq(edev, fp->rxq); | |
2489 | ||
2490 | for (tc = 0; tc < edev->num_tc; tc++) | |
2491 | qede_free_mem_txq(edev, &fp->txqs[tc]); | |
2492 | } | |
2493 | ||
2494 | /* This function allocates all memory needed for a single fp (i.e. an entity | |
2495 | * which contains status block, one rx queue and multiple per-TC tx queues. | |
2496 | */ | |
2497 | static int qede_alloc_mem_fp(struct qede_dev *edev, | |
2498 | struct qede_fastpath *fp) | |
2499 | { | |
2500 | int rc, tc; | |
2501 | ||
2502 | rc = qede_alloc_mem_sb(edev, fp->sb_info, fp->rss_id); | |
2503 | if (rc) | |
2504 | goto err; | |
2505 | ||
2506 | rc = qede_alloc_mem_rxq(edev, fp->rxq); | |
2507 | if (rc) | |
2508 | goto err; | |
2509 | ||
2510 | for (tc = 0; tc < edev->num_tc; tc++) { | |
2511 | rc = qede_alloc_mem_txq(edev, &fp->txqs[tc]); | |
2512 | if (rc) | |
2513 | goto err; | |
2514 | } | |
2515 | ||
2516 | return 0; | |
2517 | ||
2518 | err: | |
2519 | qede_free_mem_fp(edev, fp); | |
2520 | return -ENOMEM; | |
2521 | } | |
2522 | ||
2523 | static void qede_free_mem_load(struct qede_dev *edev) | |
2524 | { | |
2525 | int i; | |
2526 | ||
2527 | for_each_rss(i) { | |
2528 | struct qede_fastpath *fp = &edev->fp_array[i]; | |
2529 | ||
2530 | qede_free_mem_fp(edev, fp); | |
2531 | } | |
2532 | } | |
2533 | ||
2534 | /* This function allocates all qede memory at NIC load. */ | |
2535 | static int qede_alloc_mem_load(struct qede_dev *edev) | |
2536 | { | |
2537 | int rc = 0, rss_id; | |
2538 | ||
2539 | for (rss_id = 0; rss_id < QEDE_RSS_CNT(edev); rss_id++) { | |
2540 | struct qede_fastpath *fp = &edev->fp_array[rss_id]; | |
2541 | ||
2542 | rc = qede_alloc_mem_fp(edev, fp); | |
2543 | if (rc) | |
2544 | break; | |
2545 | } | |
2546 | ||
2547 | if (rss_id != QEDE_RSS_CNT(edev)) { | |
2548 | /* Failed allocating memory for all the queues */ | |
2549 | if (!rss_id) { | |
2550 | DP_ERR(edev, | |
2551 | "Failed to allocate memory for the leading queue\n"); | |
2552 | rc = -ENOMEM; | |
2553 | } else { | |
2554 | DP_NOTICE(edev, | |
2555 | "Failed to allocate memory for all of RSS queues\n Desired: %d queues, allocated: %d queues\n", | |
2556 | QEDE_RSS_CNT(edev), rss_id); | |
2557 | } | |
2558 | edev->num_rss = rss_id; | |
2559 | } | |
2560 | ||
2561 | return 0; | |
2562 | } | |
2563 | ||
2564 | /* This function inits fp content and resets the SB, RXQ and TXQ structures */ | |
2565 | static void qede_init_fp(struct qede_dev *edev) | |
2566 | { | |
2567 | int rss_id, txq_index, tc; | |
2568 | struct qede_fastpath *fp; | |
2569 | ||
2570 | for_each_rss(rss_id) { | |
2571 | fp = &edev->fp_array[rss_id]; | |
2572 | ||
2573 | fp->edev = edev; | |
2574 | fp->rss_id = rss_id; | |
2575 | ||
2576 | memset((void *)&fp->napi, 0, sizeof(fp->napi)); | |
2577 | ||
2578 | memset((void *)fp->sb_info, 0, sizeof(*fp->sb_info)); | |
2579 | ||
2580 | memset((void *)fp->rxq, 0, sizeof(*fp->rxq)); | |
2581 | fp->rxq->rxq_id = rss_id; | |
2582 | ||
2583 | memset((void *)fp->txqs, 0, (edev->num_tc * sizeof(*fp->txqs))); | |
2584 | for (tc = 0; tc < edev->num_tc; tc++) { | |
2585 | txq_index = tc * QEDE_RSS_CNT(edev) + rss_id; | |
2586 | fp->txqs[tc].index = txq_index; | |
2587 | } | |
2588 | ||
2589 | snprintf(fp->name, sizeof(fp->name), "%s-fp-%d", | |
2590 | edev->ndev->name, rss_id); | |
2591 | } | |
55482edc MC |
2592 | |
2593 | edev->gro_disable = !(edev->ndev->features & NETIF_F_GRO); | |
2950219d YM |
2594 | } |
2595 | ||
2596 | static int qede_set_real_num_queues(struct qede_dev *edev) | |
2597 | { | |
2598 | int rc = 0; | |
2599 | ||
2600 | rc = netif_set_real_num_tx_queues(edev->ndev, QEDE_TSS_CNT(edev)); | |
2601 | if (rc) { | |
2602 | DP_NOTICE(edev, "Failed to set real number of Tx queues\n"); | |
2603 | return rc; | |
2604 | } | |
2605 | rc = netif_set_real_num_rx_queues(edev->ndev, QEDE_RSS_CNT(edev)); | |
2606 | if (rc) { | |
2607 | DP_NOTICE(edev, "Failed to set real number of Rx queues\n"); | |
2608 | return rc; | |
2609 | } | |
2610 | ||
2611 | return 0; | |
2612 | } | |
2613 | ||
2614 | static void qede_napi_disable_remove(struct qede_dev *edev) | |
2615 | { | |
2616 | int i; | |
2617 | ||
2618 | for_each_rss(i) { | |
2619 | napi_disable(&edev->fp_array[i].napi); | |
2620 | ||
2621 | netif_napi_del(&edev->fp_array[i].napi); | |
2622 | } | |
2623 | } | |
2624 | ||
2625 | static void qede_napi_add_enable(struct qede_dev *edev) | |
2626 | { | |
2627 | int i; | |
2628 | ||
2629 | /* Add NAPI objects */ | |
2630 | for_each_rss(i) { | |
2631 | netif_napi_add(edev->ndev, &edev->fp_array[i].napi, | |
2632 | qede_poll, NAPI_POLL_WEIGHT); | |
2633 | napi_enable(&edev->fp_array[i].napi); | |
2634 | } | |
2635 | } | |
2636 | ||
2637 | static void qede_sync_free_irqs(struct qede_dev *edev) | |
2638 | { | |
2639 | int i; | |
2640 | ||
2641 | for (i = 0; i < edev->int_info.used_cnt; i++) { | |
2642 | if (edev->int_info.msix_cnt) { | |
2643 | synchronize_irq(edev->int_info.msix[i].vector); | |
2644 | free_irq(edev->int_info.msix[i].vector, | |
2645 | &edev->fp_array[i]); | |
2646 | } else { | |
2647 | edev->ops->common->simd_handler_clean(edev->cdev, i); | |
2648 | } | |
2649 | } | |
2650 | ||
2651 | edev->int_info.used_cnt = 0; | |
2652 | } | |
2653 | ||
2654 | static int qede_req_msix_irqs(struct qede_dev *edev) | |
2655 | { | |
2656 | int i, rc; | |
2657 | ||
2658 | /* Sanitize number of interrupts == number of prepared RSS queues */ | |
2659 | if (QEDE_RSS_CNT(edev) > edev->int_info.msix_cnt) { | |
2660 | DP_ERR(edev, | |
2661 | "Interrupt mismatch: %d RSS queues > %d MSI-x vectors\n", | |
2662 | QEDE_RSS_CNT(edev), edev->int_info.msix_cnt); | |
2663 | return -EINVAL; | |
2664 | } | |
2665 | ||
2666 | for (i = 0; i < QEDE_RSS_CNT(edev); i++) { | |
2667 | rc = request_irq(edev->int_info.msix[i].vector, | |
2668 | qede_msix_fp_int, 0, edev->fp_array[i].name, | |
2669 | &edev->fp_array[i]); | |
2670 | if (rc) { | |
2671 | DP_ERR(edev, "Request fp %d irq failed\n", i); | |
2672 | qede_sync_free_irqs(edev); | |
2673 | return rc; | |
2674 | } | |
2675 | DP_VERBOSE(edev, NETIF_MSG_INTR, | |
2676 | "Requested fp irq for %s [entry %d]. Cookie is at %p\n", | |
2677 | edev->fp_array[i].name, i, | |
2678 | &edev->fp_array[i]); | |
2679 | edev->int_info.used_cnt++; | |
2680 | } | |
2681 | ||
2682 | return 0; | |
2683 | } | |
2684 | ||
2685 | static void qede_simd_fp_handler(void *cookie) | |
2686 | { | |
2687 | struct qede_fastpath *fp = (struct qede_fastpath *)cookie; | |
2688 | ||
2689 | napi_schedule_irqoff(&fp->napi); | |
2690 | } | |
2691 | ||
2692 | static int qede_setup_irqs(struct qede_dev *edev) | |
2693 | { | |
2694 | int i, rc = 0; | |
2695 | ||
2696 | /* Learn Interrupt configuration */ | |
2697 | rc = edev->ops->common->get_fp_int(edev->cdev, &edev->int_info); | |
2698 | if (rc) | |
2699 | return rc; | |
2700 | ||
2701 | if (edev->int_info.msix_cnt) { | |
2702 | rc = qede_req_msix_irqs(edev); | |
2703 | if (rc) | |
2704 | return rc; | |
2705 | edev->ndev->irq = edev->int_info.msix[0].vector; | |
2706 | } else { | |
2707 | const struct qed_common_ops *ops; | |
2708 | ||
2709 | /* qed should learn receive the RSS ids and callbacks */ | |
2710 | ops = edev->ops->common; | |
2711 | for (i = 0; i < QEDE_RSS_CNT(edev); i++) | |
2712 | ops->simd_handler_config(edev->cdev, | |
2713 | &edev->fp_array[i], i, | |
2714 | qede_simd_fp_handler); | |
2715 | edev->int_info.used_cnt = QEDE_RSS_CNT(edev); | |
2716 | } | |
2717 | return 0; | |
2718 | } | |
2719 | ||
2720 | static int qede_drain_txq(struct qede_dev *edev, | |
2721 | struct qede_tx_queue *txq, | |
2722 | bool allow_drain) | |
2723 | { | |
2724 | int rc, cnt = 1000; | |
2725 | ||
2726 | while (txq->sw_tx_cons != txq->sw_tx_prod) { | |
2727 | if (!cnt) { | |
2728 | if (allow_drain) { | |
2729 | DP_NOTICE(edev, | |
2730 | "Tx queue[%d] is stuck, requesting MCP to drain\n", | |
2731 | txq->index); | |
2732 | rc = edev->ops->common->drain(edev->cdev); | |
2733 | if (rc) | |
2734 | return rc; | |
2735 | return qede_drain_txq(edev, txq, false); | |
2736 | } | |
2737 | DP_NOTICE(edev, | |
2738 | "Timeout waiting for tx queue[%d]: PROD=%d, CONS=%d\n", | |
2739 | txq->index, txq->sw_tx_prod, | |
2740 | txq->sw_tx_cons); | |
2741 | return -ENODEV; | |
2742 | } | |
2743 | cnt--; | |
2744 | usleep_range(1000, 2000); | |
2745 | barrier(); | |
2746 | } | |
2747 | ||
2748 | /* FW finished processing, wait for HW to transmit all tx packets */ | |
2749 | usleep_range(1000, 2000); | |
2750 | ||
2751 | return 0; | |
2752 | } | |
2753 | ||
2754 | static int qede_stop_queues(struct qede_dev *edev) | |
2755 | { | |
2756 | struct qed_update_vport_params vport_update_params; | |
2757 | struct qed_dev *cdev = edev->cdev; | |
2758 | int rc, tc, i; | |
2759 | ||
2760 | /* Disable the vport */ | |
2761 | memset(&vport_update_params, 0, sizeof(vport_update_params)); | |
2762 | vport_update_params.vport_id = 0; | |
2763 | vport_update_params.update_vport_active_flg = 1; | |
2764 | vport_update_params.vport_active_flg = 0; | |
2765 | vport_update_params.update_rss_flg = 0; | |
2766 | ||
2767 | rc = edev->ops->vport_update(cdev, &vport_update_params); | |
2768 | if (rc) { | |
2769 | DP_ERR(edev, "Failed to update vport\n"); | |
2770 | return rc; | |
2771 | } | |
2772 | ||
2773 | /* Flush Tx queues. If needed, request drain from MCP */ | |
2774 | for_each_rss(i) { | |
2775 | struct qede_fastpath *fp = &edev->fp_array[i]; | |
2776 | ||
2777 | for (tc = 0; tc < edev->num_tc; tc++) { | |
2778 | struct qede_tx_queue *txq = &fp->txqs[tc]; | |
2779 | ||
2780 | rc = qede_drain_txq(edev, txq, true); | |
2781 | if (rc) | |
2782 | return rc; | |
2783 | } | |
2784 | } | |
2785 | ||
2786 | /* Stop all Queues in reverse order*/ | |
2787 | for (i = QEDE_RSS_CNT(edev) - 1; i >= 0; i--) { | |
2788 | struct qed_stop_rxq_params rx_params; | |
2789 | ||
2790 | /* Stop the Tx Queue(s)*/ | |
2791 | for (tc = 0; tc < edev->num_tc; tc++) { | |
2792 | struct qed_stop_txq_params tx_params; | |
2793 | ||
2794 | tx_params.rss_id = i; | |
2795 | tx_params.tx_queue_id = tc * QEDE_RSS_CNT(edev) + i; | |
2796 | rc = edev->ops->q_tx_stop(cdev, &tx_params); | |
2797 | if (rc) { | |
2798 | DP_ERR(edev, "Failed to stop TXQ #%d\n", | |
2799 | tx_params.tx_queue_id); | |
2800 | return rc; | |
2801 | } | |
2802 | } | |
2803 | ||
2804 | /* Stop the Rx Queue*/ | |
2805 | memset(&rx_params, 0, sizeof(rx_params)); | |
2806 | rx_params.rss_id = i; | |
2807 | rx_params.rx_queue_id = i; | |
2808 | ||
2809 | rc = edev->ops->q_rx_stop(cdev, &rx_params); | |
2810 | if (rc) { | |
2811 | DP_ERR(edev, "Failed to stop RXQ #%d\n", i); | |
2812 | return rc; | |
2813 | } | |
2814 | } | |
2815 | ||
2816 | /* Stop the vport */ | |
2817 | rc = edev->ops->vport_stop(cdev, 0); | |
2818 | if (rc) | |
2819 | DP_ERR(edev, "Failed to stop VPORT\n"); | |
2820 | ||
2821 | return rc; | |
2822 | } | |
2823 | ||
2824 | static int qede_start_queues(struct qede_dev *edev) | |
2825 | { | |
2826 | int rc, tc, i; | |
088c8618 | 2827 | int vlan_removal_en = 1; |
2950219d YM |
2828 | struct qed_dev *cdev = edev->cdev; |
2829 | struct qed_update_vport_rss_params *rss_params = &edev->rss_params; | |
2830 | struct qed_update_vport_params vport_update_params; | |
2831 | struct qed_queue_start_common_params q_params; | |
088c8618 | 2832 | struct qed_start_vport_params start = {0}; |
2950219d YM |
2833 | |
2834 | if (!edev->num_rss) { | |
2835 | DP_ERR(edev, | |
2836 | "Cannot update V-VPORT as active as there are no Rx queues\n"); | |
2837 | return -EINVAL; | |
2838 | } | |
2839 | ||
55482edc | 2840 | start.gro_enable = !edev->gro_disable; |
088c8618 MC |
2841 | start.mtu = edev->ndev->mtu; |
2842 | start.vport_id = 0; | |
2843 | start.drop_ttl0 = true; | |
2844 | start.remove_inner_vlan = vlan_removal_en; | |
2845 | ||
2846 | rc = edev->ops->vport_start(cdev, &start); | |
2950219d YM |
2847 | |
2848 | if (rc) { | |
2849 | DP_ERR(edev, "Start V-PORT failed %d\n", rc); | |
2850 | return rc; | |
2851 | } | |
2852 | ||
2853 | DP_VERBOSE(edev, NETIF_MSG_IFUP, | |
2854 | "Start vport ramrod passed, vport_id = %d, MTU = %d, vlan_removal_en = %d\n", | |
088c8618 | 2855 | start.vport_id, edev->ndev->mtu + 0xe, vlan_removal_en); |
2950219d YM |
2856 | |
2857 | for_each_rss(i) { | |
2858 | struct qede_fastpath *fp = &edev->fp_array[i]; | |
2859 | dma_addr_t phys_table = fp->rxq->rx_comp_ring.pbl.p_phys_table; | |
2860 | ||
2861 | memset(&q_params, 0, sizeof(q_params)); | |
2862 | q_params.rss_id = i; | |
2863 | q_params.queue_id = i; | |
2864 | q_params.vport_id = 0; | |
2865 | q_params.sb = fp->sb_info->igu_sb_id; | |
2866 | q_params.sb_idx = RX_PI; | |
2867 | ||
2868 | rc = edev->ops->q_rx_start(cdev, &q_params, | |
2869 | fp->rxq->rx_buf_size, | |
2870 | fp->rxq->rx_bd_ring.p_phys_addr, | |
2871 | phys_table, | |
2872 | fp->rxq->rx_comp_ring.page_cnt, | |
2873 | &fp->rxq->hw_rxq_prod_addr); | |
2874 | if (rc) { | |
2875 | DP_ERR(edev, "Start RXQ #%d failed %d\n", i, rc); | |
2876 | return rc; | |
2877 | } | |
2878 | ||
2879 | fp->rxq->hw_cons_ptr = &fp->sb_info->sb_virt->pi_array[RX_PI]; | |
2880 | ||
2881 | qede_update_rx_prod(edev, fp->rxq); | |
2882 | ||
2883 | for (tc = 0; tc < edev->num_tc; tc++) { | |
2884 | struct qede_tx_queue *txq = &fp->txqs[tc]; | |
2885 | int txq_index = tc * QEDE_RSS_CNT(edev) + i; | |
2886 | ||
2887 | memset(&q_params, 0, sizeof(q_params)); | |
2888 | q_params.rss_id = i; | |
2889 | q_params.queue_id = txq_index; | |
2890 | q_params.vport_id = 0; | |
2891 | q_params.sb = fp->sb_info->igu_sb_id; | |
2892 | q_params.sb_idx = TX_PI(tc); | |
2893 | ||
2894 | rc = edev->ops->q_tx_start(cdev, &q_params, | |
2895 | txq->tx_pbl.pbl.p_phys_table, | |
2896 | txq->tx_pbl.page_cnt, | |
2897 | &txq->doorbell_addr); | |
2898 | if (rc) { | |
2899 | DP_ERR(edev, "Start TXQ #%d failed %d\n", | |
2900 | txq_index, rc); | |
2901 | return rc; | |
2902 | } | |
2903 | ||
2904 | txq->hw_cons_ptr = | |
2905 | &fp->sb_info->sb_virt->pi_array[TX_PI(tc)]; | |
2906 | SET_FIELD(txq->tx_db.data.params, | |
2907 | ETH_DB_DATA_DEST, DB_DEST_XCM); | |
2908 | SET_FIELD(txq->tx_db.data.params, ETH_DB_DATA_AGG_CMD, | |
2909 | DB_AGG_CMD_SET); | |
2910 | SET_FIELD(txq->tx_db.data.params, | |
2911 | ETH_DB_DATA_AGG_VAL_SEL, | |
2912 | DQ_XCM_ETH_TX_BD_PROD_CMD); | |
2913 | ||
2914 | txq->tx_db.data.agg_flags = DQ_XCM_ETH_DQ_CF_CMD; | |
2915 | } | |
2916 | } | |
2917 | ||
2918 | /* Prepare and send the vport enable */ | |
2919 | memset(&vport_update_params, 0, sizeof(vport_update_params)); | |
088c8618 | 2920 | vport_update_params.vport_id = start.vport_id; |
2950219d YM |
2921 | vport_update_params.update_vport_active_flg = 1; |
2922 | vport_update_params.vport_active_flg = 1; | |
2923 | ||
2924 | /* Fill struct with RSS params */ | |
2925 | if (QEDE_RSS_CNT(edev) > 1) { | |
2926 | vport_update_params.update_rss_flg = 1; | |
2927 | for (i = 0; i < 128; i++) | |
2928 | rss_params->rss_ind_table[i] = | |
2929 | ethtool_rxfh_indir_default(i, QEDE_RSS_CNT(edev)); | |
2930 | netdev_rss_key_fill(rss_params->rss_key, | |
2931 | sizeof(rss_params->rss_key)); | |
2932 | } else { | |
2933 | memset(rss_params, 0, sizeof(*rss_params)); | |
2934 | } | |
2935 | memcpy(&vport_update_params.rss_params, rss_params, | |
2936 | sizeof(*rss_params)); | |
2937 | ||
2938 | rc = edev->ops->vport_update(cdev, &vport_update_params); | |
2939 | if (rc) { | |
2940 | DP_ERR(edev, "Update V-PORT failed %d\n", rc); | |
2941 | return rc; | |
2942 | } | |
2943 | ||
2944 | return 0; | |
2945 | } | |
2946 | ||
0d8e0aa0 SK |
2947 | static int qede_set_mcast_rx_mac(struct qede_dev *edev, |
2948 | enum qed_filter_xcast_params_type opcode, | |
2949 | unsigned char *mac, int num_macs) | |
2950 | { | |
2951 | struct qed_filter_params filter_cmd; | |
2952 | int i; | |
2953 | ||
2954 | memset(&filter_cmd, 0, sizeof(filter_cmd)); | |
2955 | filter_cmd.type = QED_FILTER_TYPE_MCAST; | |
2956 | filter_cmd.filter.mcast.type = opcode; | |
2957 | filter_cmd.filter.mcast.num = num_macs; | |
2958 | ||
2959 | for (i = 0; i < num_macs; i++, mac += ETH_ALEN) | |
2960 | ether_addr_copy(filter_cmd.filter.mcast.mac[i], mac); | |
2961 | ||
2962 | return edev->ops->filter_config(edev->cdev, &filter_cmd); | |
2963 | } | |
2964 | ||
2950219d YM |
2965 | enum qede_unload_mode { |
2966 | QEDE_UNLOAD_NORMAL, | |
2967 | }; | |
2968 | ||
2969 | static void qede_unload(struct qede_dev *edev, enum qede_unload_mode mode) | |
2970 | { | |
a2ec6172 | 2971 | struct qed_link_params link_params; |
2950219d YM |
2972 | int rc; |
2973 | ||
2974 | DP_INFO(edev, "Starting qede unload\n"); | |
2975 | ||
0d8e0aa0 SK |
2976 | mutex_lock(&edev->qede_lock); |
2977 | edev->state = QEDE_STATE_CLOSED; | |
2978 | ||
2950219d YM |
2979 | /* Close OS Tx */ |
2980 | netif_tx_disable(edev->ndev); | |
2981 | netif_carrier_off(edev->ndev); | |
2982 | ||
a2ec6172 SK |
2983 | /* Reset the link */ |
2984 | memset(&link_params, 0, sizeof(link_params)); | |
2985 | link_params.link_up = false; | |
2986 | edev->ops->common->set_link(edev->cdev, &link_params); | |
2950219d YM |
2987 | rc = qede_stop_queues(edev); |
2988 | if (rc) { | |
2989 | qede_sync_free_irqs(edev); | |
2990 | goto out; | |
2991 | } | |
2992 | ||
2993 | DP_INFO(edev, "Stopped Queues\n"); | |
2994 | ||
7c1bfcad | 2995 | qede_vlan_mark_nonconfigured(edev); |
2950219d YM |
2996 | edev->ops->fastpath_stop(edev->cdev); |
2997 | ||
2998 | /* Release the interrupts */ | |
2999 | qede_sync_free_irqs(edev); | |
3000 | edev->ops->common->set_fp_int(edev->cdev, 0); | |
3001 | ||
3002 | qede_napi_disable_remove(edev); | |
3003 | ||
3004 | qede_free_mem_load(edev); | |
3005 | qede_free_fp_array(edev); | |
3006 | ||
3007 | out: | |
3008 | mutex_unlock(&edev->qede_lock); | |
3009 | DP_INFO(edev, "Ending qede unload\n"); | |
3010 | } | |
3011 | ||
3012 | enum qede_load_mode { | |
3013 | QEDE_LOAD_NORMAL, | |
3014 | }; | |
3015 | ||
3016 | static int qede_load(struct qede_dev *edev, enum qede_load_mode mode) | |
3017 | { | |
a2ec6172 SK |
3018 | struct qed_link_params link_params; |
3019 | struct qed_link_output link_output; | |
2950219d YM |
3020 | int rc; |
3021 | ||
3022 | DP_INFO(edev, "Starting qede load\n"); | |
3023 | ||
3024 | rc = qede_set_num_queues(edev); | |
3025 | if (rc) | |
3026 | goto err0; | |
3027 | ||
3028 | rc = qede_alloc_fp_array(edev); | |
3029 | if (rc) | |
3030 | goto err0; | |
3031 | ||
3032 | qede_init_fp(edev); | |
3033 | ||
3034 | rc = qede_alloc_mem_load(edev); | |
3035 | if (rc) | |
3036 | goto err1; | |
3037 | DP_INFO(edev, "Allocated %d RSS queues on %d TC/s\n", | |
3038 | QEDE_RSS_CNT(edev), edev->num_tc); | |
3039 | ||
3040 | rc = qede_set_real_num_queues(edev); | |
3041 | if (rc) | |
3042 | goto err2; | |
3043 | ||
3044 | qede_napi_add_enable(edev); | |
3045 | DP_INFO(edev, "Napi added and enabled\n"); | |
3046 | ||
3047 | rc = qede_setup_irqs(edev); | |
3048 | if (rc) | |
3049 | goto err3; | |
3050 | DP_INFO(edev, "Setup IRQs succeeded\n"); | |
3051 | ||
3052 | rc = qede_start_queues(edev); | |
3053 | if (rc) | |
3054 | goto err4; | |
3055 | DP_INFO(edev, "Start VPORT, RXQ and TXQ succeeded\n"); | |
3056 | ||
3057 | /* Add primary mac and set Rx filters */ | |
3058 | ether_addr_copy(edev->primary_mac, edev->ndev->dev_addr); | |
3059 | ||
0d8e0aa0 SK |
3060 | mutex_lock(&edev->qede_lock); |
3061 | edev->state = QEDE_STATE_OPEN; | |
3062 | mutex_unlock(&edev->qede_lock); | |
a2ec6172 | 3063 | |
7c1bfcad SRK |
3064 | /* Program un-configured VLANs */ |
3065 | qede_configure_vlan_filters(edev); | |
3066 | ||
a2ec6172 SK |
3067 | /* Ask for link-up using current configuration */ |
3068 | memset(&link_params, 0, sizeof(link_params)); | |
3069 | link_params.link_up = true; | |
3070 | edev->ops->common->set_link(edev->cdev, &link_params); | |
3071 | ||
3072 | /* Query whether link is already-up */ | |
3073 | memset(&link_output, 0, sizeof(link_output)); | |
3074 | edev->ops->common->get_link(edev->cdev, &link_output); | |
3075 | qede_link_update(edev, &link_output); | |
3076 | ||
2950219d YM |
3077 | DP_INFO(edev, "Ending successfully qede load\n"); |
3078 | ||
3079 | return 0; | |
3080 | ||
3081 | err4: | |
3082 | qede_sync_free_irqs(edev); | |
3083 | memset(&edev->int_info.msix_cnt, 0, sizeof(struct qed_int_info)); | |
3084 | err3: | |
3085 | qede_napi_disable_remove(edev); | |
3086 | err2: | |
3087 | qede_free_mem_load(edev); | |
3088 | err1: | |
3089 | edev->ops->common->set_fp_int(edev->cdev, 0); | |
3090 | qede_free_fp_array(edev); | |
3091 | edev->num_rss = 0; | |
3092 | err0: | |
3093 | return rc; | |
3094 | } | |
3095 | ||
133fac0e SK |
3096 | void qede_reload(struct qede_dev *edev, |
3097 | void (*func)(struct qede_dev *, union qede_reload_args *), | |
3098 | union qede_reload_args *args) | |
3099 | { | |
3100 | qede_unload(edev, QEDE_UNLOAD_NORMAL); | |
3101 | /* Call function handler to update parameters | |
3102 | * needed for function load. | |
3103 | */ | |
3104 | if (func) | |
3105 | func(edev, args); | |
3106 | ||
3107 | qede_load(edev, QEDE_LOAD_NORMAL); | |
3108 | ||
3109 | mutex_lock(&edev->qede_lock); | |
3110 | qede_config_rx_mode(edev->ndev); | |
3111 | mutex_unlock(&edev->qede_lock); | |
3112 | } | |
3113 | ||
2950219d YM |
3114 | /* called with rtnl_lock */ |
3115 | static int qede_open(struct net_device *ndev) | |
3116 | { | |
3117 | struct qede_dev *edev = netdev_priv(ndev); | |
3118 | ||
3119 | netif_carrier_off(ndev); | |
3120 | ||
3121 | edev->ops->common->set_power_state(edev->cdev, PCI_D0); | |
3122 | ||
3123 | return qede_load(edev, QEDE_LOAD_NORMAL); | |
3124 | } | |
3125 | ||
3126 | static int qede_close(struct net_device *ndev) | |
3127 | { | |
3128 | struct qede_dev *edev = netdev_priv(ndev); | |
3129 | ||
3130 | qede_unload(edev, QEDE_UNLOAD_NORMAL); | |
3131 | ||
3132 | return 0; | |
3133 | } | |
0d8e0aa0 | 3134 | |
a2ec6172 SK |
3135 | static void qede_link_update(void *dev, struct qed_link_output *link) |
3136 | { | |
3137 | struct qede_dev *edev = dev; | |
3138 | ||
3139 | if (!netif_running(edev->ndev)) { | |
3140 | DP_VERBOSE(edev, NETIF_MSG_LINK, "Interface is not running\n"); | |
3141 | return; | |
3142 | } | |
3143 | ||
3144 | if (link->link_up) { | |
8e025ae2 YM |
3145 | if (!netif_carrier_ok(edev->ndev)) { |
3146 | DP_NOTICE(edev, "Link is up\n"); | |
3147 | netif_tx_start_all_queues(edev->ndev); | |
3148 | netif_carrier_on(edev->ndev); | |
3149 | } | |
a2ec6172 | 3150 | } else { |
8e025ae2 YM |
3151 | if (netif_carrier_ok(edev->ndev)) { |
3152 | DP_NOTICE(edev, "Link is down\n"); | |
3153 | netif_tx_disable(edev->ndev); | |
3154 | netif_carrier_off(edev->ndev); | |
3155 | } | |
a2ec6172 SK |
3156 | } |
3157 | } | |
3158 | ||
0d8e0aa0 SK |
3159 | static int qede_set_mac_addr(struct net_device *ndev, void *p) |
3160 | { | |
3161 | struct qede_dev *edev = netdev_priv(ndev); | |
3162 | struct sockaddr *addr = p; | |
3163 | int rc; | |
3164 | ||
3165 | ASSERT_RTNL(); /* @@@TBD To be removed */ | |
3166 | ||
3167 | DP_INFO(edev, "Set_mac_addr called\n"); | |
3168 | ||
3169 | if (!is_valid_ether_addr(addr->sa_data)) { | |
3170 | DP_NOTICE(edev, "The MAC address is not valid\n"); | |
3171 | return -EFAULT; | |
3172 | } | |
3173 | ||
3174 | ether_addr_copy(ndev->dev_addr, addr->sa_data); | |
3175 | ||
3176 | if (!netif_running(ndev)) { | |
3177 | DP_NOTICE(edev, "The device is currently down\n"); | |
3178 | return 0; | |
3179 | } | |
3180 | ||
3181 | /* Remove the previous primary mac */ | |
3182 | rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, | |
3183 | edev->primary_mac); | |
3184 | if (rc) | |
3185 | return rc; | |
3186 | ||
3187 | /* Add MAC filter according to the new unicast HW MAC address */ | |
3188 | ether_addr_copy(edev->primary_mac, ndev->dev_addr); | |
3189 | return qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, | |
3190 | edev->primary_mac); | |
3191 | } | |
3192 | ||
3193 | static int | |
3194 | qede_configure_mcast_filtering(struct net_device *ndev, | |
3195 | enum qed_filter_rx_mode_type *accept_flags) | |
3196 | { | |
3197 | struct qede_dev *edev = netdev_priv(ndev); | |
3198 | unsigned char *mc_macs, *temp; | |
3199 | struct netdev_hw_addr *ha; | |
3200 | int rc = 0, mc_count; | |
3201 | size_t size; | |
3202 | ||
3203 | size = 64 * ETH_ALEN; | |
3204 | ||
3205 | mc_macs = kzalloc(size, GFP_KERNEL); | |
3206 | if (!mc_macs) { | |
3207 | DP_NOTICE(edev, | |
3208 | "Failed to allocate memory for multicast MACs\n"); | |
3209 | rc = -ENOMEM; | |
3210 | goto exit; | |
3211 | } | |
3212 | ||
3213 | temp = mc_macs; | |
3214 | ||
3215 | /* Remove all previously configured MAC filters */ | |
3216 | rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_DEL, | |
3217 | mc_macs, 1); | |
3218 | if (rc) | |
3219 | goto exit; | |
3220 | ||
3221 | netif_addr_lock_bh(ndev); | |
3222 | ||
3223 | mc_count = netdev_mc_count(ndev); | |
3224 | if (mc_count < 64) { | |
3225 | netdev_for_each_mc_addr(ha, ndev) { | |
3226 | ether_addr_copy(temp, ha->addr); | |
3227 | temp += ETH_ALEN; | |
3228 | } | |
3229 | } | |
3230 | ||
3231 | netif_addr_unlock_bh(ndev); | |
3232 | ||
3233 | /* Check for all multicast @@@TBD resource allocation */ | |
3234 | if ((ndev->flags & IFF_ALLMULTI) || | |
3235 | (mc_count > 64)) { | |
3236 | if (*accept_flags == QED_FILTER_RX_MODE_TYPE_REGULAR) | |
3237 | *accept_flags = QED_FILTER_RX_MODE_TYPE_MULTI_PROMISC; | |
3238 | } else { | |
3239 | /* Add all multicast MAC filters */ | |
3240 | rc = qede_set_mcast_rx_mac(edev, QED_FILTER_XCAST_TYPE_ADD, | |
3241 | mc_macs, mc_count); | |
3242 | } | |
3243 | ||
3244 | exit: | |
3245 | kfree(mc_macs); | |
3246 | return rc; | |
3247 | } | |
3248 | ||
3249 | static void qede_set_rx_mode(struct net_device *ndev) | |
3250 | { | |
3251 | struct qede_dev *edev = netdev_priv(ndev); | |
3252 | ||
3253 | DP_INFO(edev, "qede_set_rx_mode called\n"); | |
3254 | ||
3255 | if (edev->state != QEDE_STATE_OPEN) { | |
3256 | DP_INFO(edev, | |
3257 | "qede_set_rx_mode called while interface is down\n"); | |
3258 | } else { | |
3259 | set_bit(QEDE_SP_RX_MODE, &edev->sp_flags); | |
3260 | schedule_delayed_work(&edev->sp_task, 0); | |
3261 | } | |
3262 | } | |
3263 | ||
3264 | /* Must be called with qede_lock held */ | |
3265 | static void qede_config_rx_mode(struct net_device *ndev) | |
3266 | { | |
3267 | enum qed_filter_rx_mode_type accept_flags = QED_FILTER_TYPE_UCAST; | |
3268 | struct qede_dev *edev = netdev_priv(ndev); | |
3269 | struct qed_filter_params rx_mode; | |
3270 | unsigned char *uc_macs, *temp; | |
3271 | struct netdev_hw_addr *ha; | |
3272 | int rc, uc_count; | |
3273 | size_t size; | |
3274 | ||
3275 | netif_addr_lock_bh(ndev); | |
3276 | ||
3277 | uc_count = netdev_uc_count(ndev); | |
3278 | size = uc_count * ETH_ALEN; | |
3279 | ||
3280 | uc_macs = kzalloc(size, GFP_ATOMIC); | |
3281 | if (!uc_macs) { | |
3282 | DP_NOTICE(edev, "Failed to allocate memory for unicast MACs\n"); | |
3283 | netif_addr_unlock_bh(ndev); | |
3284 | return; | |
3285 | } | |
3286 | ||
3287 | temp = uc_macs; | |
3288 | netdev_for_each_uc_addr(ha, ndev) { | |
3289 | ether_addr_copy(temp, ha->addr); | |
3290 | temp += ETH_ALEN; | |
3291 | } | |
3292 | ||
3293 | netif_addr_unlock_bh(ndev); | |
3294 | ||
3295 | /* Configure the struct for the Rx mode */ | |
3296 | memset(&rx_mode, 0, sizeof(struct qed_filter_params)); | |
3297 | rx_mode.type = QED_FILTER_TYPE_RX_MODE; | |
3298 | ||
3299 | /* Remove all previous unicast secondary macs and multicast macs | |
3300 | * (configrue / leave the primary mac) | |
3301 | */ | |
3302 | rc = qede_set_ucast_rx_mac(edev, QED_FILTER_XCAST_TYPE_REPLACE, | |
3303 | edev->primary_mac); | |
3304 | if (rc) | |
3305 | goto out; | |
3306 | ||
3307 | /* Check for promiscuous */ | |
3308 | if ((ndev->flags & IFF_PROMISC) || | |
3309 | (uc_count > 15)) { /* @@@TBD resource allocation - 1 */ | |
3310 | accept_flags = QED_FILTER_RX_MODE_TYPE_PROMISC; | |
3311 | } else { | |
3312 | /* Add MAC filters according to the unicast secondary macs */ | |
3313 | int i; | |
3314 | ||
3315 | temp = uc_macs; | |
3316 | for (i = 0; i < uc_count; i++) { | |
3317 | rc = qede_set_ucast_rx_mac(edev, | |
3318 | QED_FILTER_XCAST_TYPE_ADD, | |
3319 | temp); | |
3320 | if (rc) | |
3321 | goto out; | |
3322 | ||
3323 | temp += ETH_ALEN; | |
3324 | } | |
3325 | ||
3326 | rc = qede_configure_mcast_filtering(ndev, &accept_flags); | |
3327 | if (rc) | |
3328 | goto out; | |
3329 | } | |
3330 | ||
7c1bfcad SRK |
3331 | /* take care of VLAN mode */ |
3332 | if (ndev->flags & IFF_PROMISC) { | |
3333 | qede_config_accept_any_vlan(edev, true); | |
3334 | } else if (!edev->non_configured_vlans) { | |
3335 | /* It's possible that accept_any_vlan mode is set due to a | |
3336 | * previous setting of IFF_PROMISC. If vlan credits are | |
3337 | * sufficient, disable accept_any_vlan. | |
3338 | */ | |
3339 | qede_config_accept_any_vlan(edev, false); | |
3340 | } | |
3341 | ||
0d8e0aa0 SK |
3342 | rx_mode.filter.accept_flags = accept_flags; |
3343 | edev->ops->filter_config(edev->cdev, &rx_mode); | |
3344 | out: | |
3345 | kfree(uc_macs); | |
3346 | } |