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Commit | Line | Data |
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ef57c40f JS |
1 | // SPDX-License-Identifier: GPL-2.0+ |
2 | // Copyright (c) 2016-2017 Hisilicon Limited. | |
76ad4f0e S |
3 | |
4 | #include <linux/dma-mapping.h> | |
5 | #include <linux/etherdevice.h> | |
6 | #include <linux/interrupt.h> | |
7 | #include <linux/if_vlan.h> | |
8 | #include <linux/ip.h> | |
9 | #include <linux/ipv6.h> | |
10 | #include <linux/module.h> | |
11 | #include <linux/pci.h> | |
538d8ba0 | 12 | #include <linux/aer.h> |
76ad4f0e S |
13 | #include <linux/skbuff.h> |
14 | #include <linux/sctp.h> | |
15 | #include <linux/vermagic.h> | |
16 | #include <net/gre.h> | |
30d240df | 17 | #include <net/pkt_cls.h> |
5337b725 | 18 | #include <net/tcp.h> |
76ad4f0e S |
19 | #include <net/vxlan.h> |
20 | ||
21 | #include "hnae3.h" | |
22 | #include "hns3_enet.h" | |
23 | ||
e32a805a FL |
24 | static void hns3_clear_all_ring(struct hnae3_handle *h); |
25 | static void hns3_force_clear_all_rx_ring(struct hnae3_handle *h); | |
2c794374 | 26 | static void hns3_remove_hw_addr(struct net_device *netdev); |
e32a805a | 27 | |
1db9b1bf | 28 | static const char hns3_driver_name[] = "hns3"; |
76ad4f0e S |
29 | const char hns3_driver_version[] = VERMAGIC_STRING; |
30 | static const char hns3_driver_string[] = | |
31 | "Hisilicon Ethernet Network Driver for Hip08 Family"; | |
32 | static const char hns3_copyright[] = "Copyright (c) 2017 Huawei Corporation."; | |
33 | static struct hnae3_client client; | |
34 | ||
35 | /* hns3_pci_tbl - PCI Device ID Table | |
36 | * | |
37 | * Last entry must be all 0s | |
38 | * | |
39 | * { Vendor ID, Device ID, SubVendor ID, SubDevice ID, | |
40 | * Class, Class Mask, private data (not used) } | |
41 | */ | |
42 | static const struct pci_device_id hns3_pci_tbl[] = { | |
43 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_GE), 0}, | |
44 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE), 0}, | |
e92a0843 | 45 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA), |
2daf4a65 | 46 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, |
e92a0843 | 47 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_25GE_RDMA_MACSEC), |
2daf4a65 | 48 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, |
e92a0843 | 49 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA), |
2daf4a65 | 50 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, |
e92a0843 | 51 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_50GE_RDMA_MACSEC), |
2daf4a65 | 52 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, |
e92a0843 | 53 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_MACSEC), |
2daf4a65 | 54 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, |
a9c89a3f | 55 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_VF), 0}, |
f4e4e86c JS |
56 | {PCI_VDEVICE(HUAWEI, HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF), |
57 | HNAE3_DEV_SUPPORT_ROCE_DCB_BITS}, | |
76ad4f0e S |
58 | /* required last entry */ |
59 | {0, } | |
60 | }; | |
61 | MODULE_DEVICE_TABLE(pci, hns3_pci_tbl); | |
62 | ||
5a8b1a40 | 63 | static irqreturn_t hns3_irq_handle(int irq, void *vector) |
76ad4f0e | 64 | { |
5a8b1a40 | 65 | struct hns3_enet_tqp_vector *tqp_vector = vector; |
76ad4f0e S |
66 | |
67 | napi_schedule(&tqp_vector->napi); | |
68 | ||
69 | return IRQ_HANDLED; | |
70 | } | |
71 | ||
15040788 PL |
72 | /* This callback function is used to set affinity changes to the irq affinity |
73 | * masks when the irq_set_affinity_notifier function is used. | |
74 | */ | |
75 | static void hns3_nic_irq_affinity_notify(struct irq_affinity_notify *notify, | |
76 | const cpumask_t *mask) | |
77 | { | |
78 | struct hns3_enet_tqp_vector *tqp_vectors = | |
79 | container_of(notify, struct hns3_enet_tqp_vector, | |
80 | affinity_notify); | |
81 | ||
82 | tqp_vectors->affinity_mask = *mask; | |
83 | } | |
84 | ||
85 | static void hns3_nic_irq_affinity_release(struct kref *ref) | |
86 | { | |
87 | } | |
88 | ||
76ad4f0e S |
89 | static void hns3_nic_uninit_irq(struct hns3_nic_priv *priv) |
90 | { | |
91 | struct hns3_enet_tqp_vector *tqp_vectors; | |
92 | unsigned int i; | |
93 | ||
94 | for (i = 0; i < priv->vector_num; i++) { | |
95 | tqp_vectors = &priv->tqp_vector[i]; | |
96 | ||
97 | if (tqp_vectors->irq_init_flag != HNS3_VECTOR_INITED) | |
98 | continue; | |
99 | ||
15040788 PL |
100 | /* clear the affinity notifier and affinity mask */ |
101 | irq_set_affinity_notifier(tqp_vectors->vector_irq, NULL); | |
102 | irq_set_affinity_hint(tqp_vectors->vector_irq, NULL); | |
103 | ||
76ad4f0e S |
104 | /* release the irq resource */ |
105 | free_irq(tqp_vectors->vector_irq, tqp_vectors); | |
106 | tqp_vectors->irq_init_flag = HNS3_VECTOR_NOT_INITED; | |
107 | } | |
108 | } | |
109 | ||
110 | static int hns3_nic_init_irq(struct hns3_nic_priv *priv) | |
111 | { | |
112 | struct hns3_enet_tqp_vector *tqp_vectors; | |
113 | int txrx_int_idx = 0; | |
114 | int rx_int_idx = 0; | |
115 | int tx_int_idx = 0; | |
116 | unsigned int i; | |
117 | int ret; | |
118 | ||
119 | for (i = 0; i < priv->vector_num; i++) { | |
120 | tqp_vectors = &priv->tqp_vector[i]; | |
121 | ||
122 | if (tqp_vectors->irq_init_flag == HNS3_VECTOR_INITED) | |
123 | continue; | |
124 | ||
125 | if (tqp_vectors->tx_group.ring && tqp_vectors->rx_group.ring) { | |
126 | snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1, | |
127 | "%s-%s-%d", priv->netdev->name, "TxRx", | |
128 | txrx_int_idx++); | |
129 | txrx_int_idx++; | |
130 | } else if (tqp_vectors->rx_group.ring) { | |
131 | snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1, | |
132 | "%s-%s-%d", priv->netdev->name, "Rx", | |
133 | rx_int_idx++); | |
134 | } else if (tqp_vectors->tx_group.ring) { | |
135 | snprintf(tqp_vectors->name, HNAE3_INT_NAME_LEN - 1, | |
136 | "%s-%s-%d", priv->netdev->name, "Tx", | |
137 | tx_int_idx++); | |
138 | } else { | |
139 | /* Skip this unused q_vector */ | |
140 | continue; | |
141 | } | |
142 | ||
143 | tqp_vectors->name[HNAE3_INT_NAME_LEN - 1] = '\0'; | |
144 | ||
145 | ret = request_irq(tqp_vectors->vector_irq, hns3_irq_handle, 0, | |
146 | tqp_vectors->name, | |
147 | tqp_vectors); | |
148 | if (ret) { | |
149 | netdev_err(priv->netdev, "request irq(%d) fail\n", | |
150 | tqp_vectors->vector_irq); | |
151 | return ret; | |
152 | } | |
153 | ||
15040788 PL |
154 | tqp_vectors->affinity_notify.notify = |
155 | hns3_nic_irq_affinity_notify; | |
156 | tqp_vectors->affinity_notify.release = | |
157 | hns3_nic_irq_affinity_release; | |
158 | irq_set_affinity_notifier(tqp_vectors->vector_irq, | |
159 | &tqp_vectors->affinity_notify); | |
160 | irq_set_affinity_hint(tqp_vectors->vector_irq, | |
161 | &tqp_vectors->affinity_mask); | |
162 | ||
76ad4f0e S |
163 | tqp_vectors->irq_init_flag = HNS3_VECTOR_INITED; |
164 | } | |
165 | ||
166 | return 0; | |
167 | } | |
168 | ||
169 | static void hns3_mask_vector_irq(struct hns3_enet_tqp_vector *tqp_vector, | |
170 | u32 mask_en) | |
171 | { | |
172 | writel(mask_en, tqp_vector->mask_addr); | |
173 | } | |
174 | ||
175 | static void hns3_vector_enable(struct hns3_enet_tqp_vector *tqp_vector) | |
176 | { | |
177 | napi_enable(&tqp_vector->napi); | |
178 | ||
179 | /* enable vector */ | |
180 | hns3_mask_vector_irq(tqp_vector, 1); | |
181 | } | |
182 | ||
183 | static void hns3_vector_disable(struct hns3_enet_tqp_vector *tqp_vector) | |
184 | { | |
185 | /* disable vector */ | |
186 | hns3_mask_vector_irq(tqp_vector, 0); | |
187 | ||
188 | disable_irq(tqp_vector->vector_irq); | |
189 | napi_disable(&tqp_vector->napi); | |
190 | } | |
191 | ||
5acd0356 FL |
192 | void hns3_set_vector_coalesce_rl(struct hns3_enet_tqp_vector *tqp_vector, |
193 | u32 rl_value) | |
76ad4f0e | 194 | { |
5acd0356 FL |
195 | u32 rl_reg = hns3_rl_usec_to_reg(rl_value); |
196 | ||
76ad4f0e S |
197 | /* this defines the configuration for RL (Interrupt Rate Limiter). |
198 | * Rl defines rate of interrupts i.e. number of interrupts-per-second | |
199 | * GL and RL(Rate Limiter) are 2 ways to acheive interrupt coalescing | |
200 | */ | |
5acd0356 | 201 | |
d420d2de YL |
202 | if (rl_reg > 0 && !tqp_vector->tx_group.coal.gl_adapt_enable && |
203 | !tqp_vector->rx_group.coal.gl_adapt_enable) | |
5acd0356 FL |
204 | /* According to the hardware, the range of rl_reg is |
205 | * 0-59 and the unit is 4. | |
206 | */ | |
207 | rl_reg |= HNS3_INT_RL_ENABLE_MASK; | |
208 | ||
209 | writel(rl_reg, tqp_vector->mask_addr + HNS3_VECTOR_RL_OFFSET); | |
210 | } | |
211 | ||
212 | void hns3_set_vector_coalesce_rx_gl(struct hns3_enet_tqp_vector *tqp_vector, | |
213 | u32 gl_value) | |
214 | { | |
215 | u32 rx_gl_reg = hns3_gl_usec_to_reg(gl_value); | |
216 | ||
217 | writel(rx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL0_OFFSET); | |
218 | } | |
219 | ||
220 | void hns3_set_vector_coalesce_tx_gl(struct hns3_enet_tqp_vector *tqp_vector, | |
221 | u32 gl_value) | |
222 | { | |
223 | u32 tx_gl_reg = hns3_gl_usec_to_reg(gl_value); | |
224 | ||
225 | writel(tx_gl_reg, tqp_vector->mask_addr + HNS3_VECTOR_GL1_OFFSET); | |
76ad4f0e S |
226 | } |
227 | ||
2b27decc FL |
228 | static void hns3_vector_gl_rl_init(struct hns3_enet_tqp_vector *tqp_vector, |
229 | struct hns3_nic_priv *priv) | |
76ad4f0e S |
230 | { |
231 | /* initialize the configuration for interrupt coalescing. | |
232 | * 1. GL (Interrupt Gap Limiter) | |
233 | * 2. RL (Interrupt Rate Limiter) | |
234 | */ | |
235 | ||
2b27decc | 236 | /* Default: enable interrupt coalescing self-adaptive and GL */ |
d420d2de YL |
237 | tqp_vector->tx_group.coal.gl_adapt_enable = 1; |
238 | tqp_vector->rx_group.coal.gl_adapt_enable = 1; | |
2b27decc | 239 | |
d420d2de YL |
240 | tqp_vector->tx_group.coal.int_gl = HNS3_INT_GL_50K; |
241 | tqp_vector->rx_group.coal.int_gl = HNS3_INT_GL_50K; | |
2b27decc | 242 | |
d420d2de YL |
243 | tqp_vector->rx_group.coal.flow_level = HNS3_FLOW_LOW; |
244 | tqp_vector->tx_group.coal.flow_level = HNS3_FLOW_LOW; | |
76ad4f0e S |
245 | } |
246 | ||
6cbd6d33 YL |
247 | static void hns3_vector_gl_rl_init_hw(struct hns3_enet_tqp_vector *tqp_vector, |
248 | struct hns3_nic_priv *priv) | |
249 | { | |
250 | struct hnae3_handle *h = priv->ae_handle; | |
251 | ||
252 | hns3_set_vector_coalesce_tx_gl(tqp_vector, | |
d420d2de | 253 | tqp_vector->tx_group.coal.int_gl); |
6cbd6d33 | 254 | hns3_set_vector_coalesce_rx_gl(tqp_vector, |
d420d2de | 255 | tqp_vector->rx_group.coal.int_gl); |
6cbd6d33 YL |
256 | hns3_set_vector_coalesce_rl(tqp_vector, h->kinfo.int_rl_setting); |
257 | } | |
258 | ||
9df8f79a YL |
259 | static int hns3_nic_set_real_num_queue(struct net_device *netdev) |
260 | { | |
9780cb97 | 261 | struct hnae3_handle *h = hns3_get_handle(netdev); |
9df8f79a YL |
262 | struct hnae3_knic_private_info *kinfo = &h->kinfo; |
263 | unsigned int queue_size = kinfo->rss_size * kinfo->num_tc; | |
7e114e7d YL |
264 | int i, ret; |
265 | ||
266 | if (kinfo->num_tc <= 1) { | |
267 | netdev_reset_tc(netdev); | |
268 | } else { | |
269 | ret = netdev_set_num_tc(netdev, kinfo->num_tc); | |
270 | if (ret) { | |
271 | netdev_err(netdev, | |
272 | "netdev_set_num_tc fail, ret=%d!\n", ret); | |
273 | return ret; | |
274 | } | |
275 | ||
276 | for (i = 0; i < HNAE3_MAX_TC; i++) { | |
277 | if (!kinfo->tc_info[i].enable) | |
278 | continue; | |
279 | ||
280 | netdev_set_tc_queue(netdev, | |
281 | kinfo->tc_info[i].tc, | |
282 | kinfo->tc_info[i].tqp_count, | |
283 | kinfo->tc_info[i].tqp_offset); | |
284 | } | |
285 | } | |
9df8f79a YL |
286 | |
287 | ret = netif_set_real_num_tx_queues(netdev, queue_size); | |
288 | if (ret) { | |
289 | netdev_err(netdev, | |
290 | "netif_set_real_num_tx_queues fail, ret=%d!\n", | |
291 | ret); | |
292 | return ret; | |
293 | } | |
294 | ||
295 | ret = netif_set_real_num_rx_queues(netdev, queue_size); | |
296 | if (ret) { | |
297 | netdev_err(netdev, | |
298 | "netif_set_real_num_rx_queues fail, ret=%d!\n", ret); | |
299 | return ret; | |
300 | } | |
301 | ||
302 | return 0; | |
303 | } | |
304 | ||
2d7187ce PL |
305 | static u16 hns3_get_max_available_channels(struct hnae3_handle *h) |
306 | { | |
08ca3d58 | 307 | u16 alloc_tqps, max_rss_size, rss_size; |
2d7187ce | 308 | |
08ca3d58 HT |
309 | h->ae_algo->ops->get_tqps_and_rss_info(h, &alloc_tqps, &max_rss_size); |
310 | rss_size = alloc_tqps / h->kinfo.num_tc; | |
2d7187ce | 311 | |
08ca3d58 | 312 | return min_t(u16, rss_size, max_rss_size); |
2d7187ce PL |
313 | } |
314 | ||
2b5251b7 HT |
315 | static void hns3_tqp_enable(struct hnae3_queue *tqp) |
316 | { | |
317 | u32 rcb_reg; | |
318 | ||
319 | rcb_reg = hns3_read_dev(tqp, HNS3_RING_EN_REG); | |
320 | rcb_reg |= BIT(HNS3_RING_EN_B); | |
321 | hns3_write_dev(tqp, HNS3_RING_EN_REG, rcb_reg); | |
322 | } | |
323 | ||
324 | static void hns3_tqp_disable(struct hnae3_queue *tqp) | |
325 | { | |
326 | u32 rcb_reg; | |
327 | ||
328 | rcb_reg = hns3_read_dev(tqp, HNS3_RING_EN_REG); | |
329 | rcb_reg &= ~BIT(HNS3_RING_EN_B); | |
330 | hns3_write_dev(tqp, HNS3_RING_EN_REG, rcb_reg); | |
331 | } | |
332 | ||
76ad4f0e S |
333 | static int hns3_nic_net_up(struct net_device *netdev) |
334 | { | |
335 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
336 | struct hnae3_handle *h = priv->ae_handle; | |
337 | int i, j; | |
338 | int ret; | |
339 | ||
e32a805a FL |
340 | ret = hns3_nic_reset_all_ring(h); |
341 | if (ret) | |
342 | return ret; | |
343 | ||
76ad4f0e S |
344 | /* get irq resource for all vectors */ |
345 | ret = hns3_nic_init_irq(priv); | |
346 | if (ret) { | |
347 | netdev_err(netdev, "hns init irq failed! ret=%d\n", ret); | |
348 | return ret; | |
349 | } | |
350 | ||
351 | /* enable the vectors */ | |
352 | for (i = 0; i < priv->vector_num; i++) | |
353 | hns3_vector_enable(&priv->tqp_vector[i]); | |
354 | ||
2b5251b7 HT |
355 | /* enable rcb */ |
356 | for (j = 0; j < h->kinfo.num_tqps; j++) | |
357 | hns3_tqp_enable(h->kinfo.tqp[j]); | |
358 | ||
76ad4f0e S |
359 | /* start the ae_dev */ |
360 | ret = h->ae_algo->ops->start ? h->ae_algo->ops->start(h) : 0; | |
361 | if (ret) | |
362 | goto out_start_err; | |
363 | ||
a3083abb JS |
364 | clear_bit(HNS3_NIC_STATE_DOWN, &priv->state); |
365 | ||
76ad4f0e S |
366 | return 0; |
367 | ||
368 | out_start_err: | |
2b5251b7 HT |
369 | while (j--) |
370 | hns3_tqp_disable(h->kinfo.tqp[j]); | |
371 | ||
76ad4f0e S |
372 | for (j = i - 1; j >= 0; j--) |
373 | hns3_vector_disable(&priv->tqp_vector[j]); | |
374 | ||
375 | hns3_nic_uninit_irq(priv); | |
376 | ||
377 | return ret; | |
378 | } | |
379 | ||
380 | static int hns3_nic_net_open(struct net_device *netdev) | |
381 | { | |
fad0e9d8 | 382 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
7e114e7d YL |
383 | struct hnae3_handle *h = hns3_get_handle(netdev); |
384 | struct hnae3_knic_private_info *kinfo; | |
385 | int i, ret; | |
76ad4f0e | 386 | |
3a11f446 HT |
387 | if (hns3_nic_resetting(netdev)) |
388 | return -EBUSY; | |
389 | ||
76ad4f0e S |
390 | netif_carrier_off(netdev); |
391 | ||
9df8f79a YL |
392 | ret = hns3_nic_set_real_num_queue(netdev); |
393 | if (ret) | |
76ad4f0e | 394 | return ret; |
76ad4f0e S |
395 | |
396 | ret = hns3_nic_net_up(netdev); | |
397 | if (ret) { | |
398 | netdev_err(netdev, | |
399 | "hns net up fail, ret=%d!\n", ret); | |
400 | return ret; | |
401 | } | |
402 | ||
7e114e7d YL |
403 | kinfo = &h->kinfo; |
404 | for (i = 0; i < HNAE3_MAX_USER_PRIO; i++) { | |
405 | netdev_set_prio_tc_map(netdev, i, | |
406 | kinfo->prio_tc[i]); | |
407 | } | |
408 | ||
fad0e9d8 JS |
409 | if (h->ae_algo->ops->set_timer_task) |
410 | h->ae_algo->ops->set_timer_task(priv->ae_handle, true); | |
411 | ||
76ad4f0e S |
412 | return 0; |
413 | } | |
414 | ||
415 | static void hns3_nic_net_down(struct net_device *netdev) | |
416 | { | |
417 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
2b5251b7 | 418 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e S |
419 | const struct hnae3_ae_ops *ops; |
420 | int i; | |
421 | ||
e32a805a FL |
422 | /* disable vectors */ |
423 | for (i = 0; i < priv->vector_num; i++) | |
424 | hns3_vector_disable(&priv->tqp_vector[i]); | |
425 | ||
2b5251b7 HT |
426 | /* disable rcb */ |
427 | for (i = 0; i < h->kinfo.num_tqps; i++) | |
428 | hns3_tqp_disable(h->kinfo.tqp[i]); | |
429 | ||
76ad4f0e S |
430 | /* stop ae_dev */ |
431 | ops = priv->ae_handle->ae_algo->ops; | |
432 | if (ops->stop) | |
433 | ops->stop(priv->ae_handle); | |
434 | ||
76ad4f0e S |
435 | /* free irq resources */ |
436 | hns3_nic_uninit_irq(priv); | |
e32a805a FL |
437 | |
438 | hns3_clear_all_ring(priv->ae_handle); | |
76ad4f0e S |
439 | } |
440 | ||
441 | static int hns3_nic_net_stop(struct net_device *netdev) | |
442 | { | |
f22463fd | 443 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
fad0e9d8 | 444 | struct hnae3_handle *h = hns3_get_handle(netdev); |
f22463fd HT |
445 | |
446 | if (test_and_set_bit(HNS3_NIC_STATE_DOWN, &priv->state)) | |
447 | return 0; | |
448 | ||
fad0e9d8 JS |
449 | if (h->ae_algo->ops->set_timer_task) |
450 | h->ae_algo->ops->set_timer_task(priv->ae_handle, false); | |
451 | ||
76ad4f0e S |
452 | netif_tx_stop_all_queues(netdev); |
453 | netif_carrier_off(netdev); | |
454 | ||
455 | hns3_nic_net_down(netdev); | |
456 | ||
457 | return 0; | |
458 | } | |
459 | ||
76ad4f0e S |
460 | static int hns3_nic_uc_sync(struct net_device *netdev, |
461 | const unsigned char *addr) | |
462 | { | |
9780cb97 | 463 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e S |
464 | |
465 | if (h->ae_algo->ops->add_uc_addr) | |
466 | return h->ae_algo->ops->add_uc_addr(h, addr); | |
467 | ||
468 | return 0; | |
469 | } | |
470 | ||
471 | static int hns3_nic_uc_unsync(struct net_device *netdev, | |
472 | const unsigned char *addr) | |
473 | { | |
9780cb97 | 474 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e S |
475 | |
476 | if (h->ae_algo->ops->rm_uc_addr) | |
477 | return h->ae_algo->ops->rm_uc_addr(h, addr); | |
478 | ||
479 | return 0; | |
480 | } | |
481 | ||
482 | static int hns3_nic_mc_sync(struct net_device *netdev, | |
483 | const unsigned char *addr) | |
484 | { | |
9780cb97 | 485 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e | 486 | |
720a8478 | 487 | if (h->ae_algo->ops->add_mc_addr) |
76ad4f0e S |
488 | return h->ae_algo->ops->add_mc_addr(h, addr); |
489 | ||
490 | return 0; | |
491 | } | |
492 | ||
493 | static int hns3_nic_mc_unsync(struct net_device *netdev, | |
494 | const unsigned char *addr) | |
495 | { | |
9780cb97 | 496 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e | 497 | |
720a8478 | 498 | if (h->ae_algo->ops->rm_mc_addr) |
76ad4f0e S |
499 | return h->ae_algo->ops->rm_mc_addr(h, addr); |
500 | ||
501 | return 0; | |
502 | } | |
503 | ||
1e3653db JS |
504 | static u8 hns3_get_netdev_flags(struct net_device *netdev) |
505 | { | |
506 | u8 flags = 0; | |
507 | ||
508 | if (netdev->flags & IFF_PROMISC) { | |
509 | flags = HNAE3_USER_UPE | HNAE3_USER_MPE; | |
510 | } else { | |
511 | flags |= HNAE3_VLAN_FLTR; | |
512 | if (netdev->flags & IFF_ALLMULTI) | |
513 | flags |= HNAE3_USER_MPE; | |
514 | } | |
515 | ||
516 | return flags; | |
517 | } | |
518 | ||
1db9b1bf | 519 | static void hns3_nic_set_rx_mode(struct net_device *netdev) |
76ad4f0e | 520 | { |
9780cb97 | 521 | struct hnae3_handle *h = hns3_get_handle(netdev); |
1e3653db JS |
522 | u8 new_flags; |
523 | int ret; | |
76ad4f0e | 524 | |
1e3653db JS |
525 | new_flags = hns3_get_netdev_flags(netdev); |
526 | ||
527 | ret = __dev_uc_sync(netdev, hns3_nic_uc_sync, hns3_nic_uc_unsync); | |
528 | if (ret) { | |
76ad4f0e | 529 | netdev_err(netdev, "sync uc address fail\n"); |
1e3653db JS |
530 | if (ret == -ENOSPC) |
531 | new_flags |= HNAE3_OVERFLOW_UPE; | |
532 | } | |
533 | ||
a832d8b5 | 534 | if (netdev->flags & IFF_MULTICAST) { |
1e3653db JS |
535 | ret = __dev_mc_sync(netdev, hns3_nic_mc_sync, |
536 | hns3_nic_mc_unsync); | |
537 | if (ret) { | |
76ad4f0e | 538 | netdev_err(netdev, "sync mc address fail\n"); |
1e3653db JS |
539 | if (ret == -ENOSPC) |
540 | new_flags |= HNAE3_OVERFLOW_MPE; | |
541 | } | |
542 | } | |
543 | ||
544 | hns3_update_promisc_mode(netdev, new_flags); | |
545 | /* User mode Promisc mode enable and vlan filtering is disabled to | |
546 | * let all packets in. MAC-VLAN Table overflow Promisc enabled and | |
547 | * vlan fitering is enabled | |
548 | */ | |
549 | hns3_enable_vlan_filter(netdev, new_flags & HNAE3_VLAN_FLTR); | |
550 | h->netdev_flags = new_flags; | |
551 | } | |
552 | ||
abe62a63 | 553 | int hns3_update_promisc_mode(struct net_device *netdev, u8 promisc_flags) |
1e3653db JS |
554 | { |
555 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
556 | struct hnae3_handle *h = priv->ae_handle; | |
557 | ||
558 | if (h->ae_algo->ops->set_promisc_mode) { | |
abe62a63 HT |
559 | return h->ae_algo->ops->set_promisc_mode(h, |
560 | promisc_flags & HNAE3_UPE, | |
561 | promisc_flags & HNAE3_MPE); | |
1e3653db | 562 | } |
abe62a63 HT |
563 | |
564 | return 0; | |
1e3653db JS |
565 | } |
566 | ||
567 | void hns3_enable_vlan_filter(struct net_device *netdev, bool enable) | |
568 | { | |
569 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
570 | struct hnae3_handle *h = priv->ae_handle; | |
571 | bool last_state; | |
572 | ||
573 | if (h->pdev->revision >= 0x21 && h->ae_algo->ops->enable_vlan_filter) { | |
574 | last_state = h->netdev_flags & HNAE3_VLAN_FLTR ? true : false; | |
575 | if (enable != last_state) { | |
576 | netdev_info(netdev, | |
577 | "%s vlan filter\n", | |
578 | enable ? "enable" : "disable"); | |
579 | h->ae_algo->ops->enable_vlan_filter(h, enable); | |
580 | } | |
a832d8b5 | 581 | } |
76ad4f0e S |
582 | } |
583 | ||
584 | static int hns3_set_tso(struct sk_buff *skb, u32 *paylen, | |
585 | u16 *mss, u32 *type_cs_vlan_tso) | |
586 | { | |
587 | u32 l4_offset, hdr_len; | |
588 | union l3_hdr_info l3; | |
589 | union l4_hdr_info l4; | |
590 | u32 l4_paylen; | |
591 | int ret; | |
592 | ||
593 | if (!skb_is_gso(skb)) | |
594 | return 0; | |
595 | ||
596 | ret = skb_cow_head(skb, 0); | |
597 | if (ret) | |
598 | return ret; | |
599 | ||
600 | l3.hdr = skb_network_header(skb); | |
601 | l4.hdr = skb_transport_header(skb); | |
602 | ||
603 | /* Software should clear the IPv4's checksum field when tso is | |
604 | * needed. | |
605 | */ | |
606 | if (l3.v4->version == 4) | |
607 | l3.v4->check = 0; | |
608 | ||
609 | /* tunnel packet.*/ | |
610 | if (skb_shinfo(skb)->gso_type & (SKB_GSO_GRE | | |
611 | SKB_GSO_GRE_CSUM | | |
612 | SKB_GSO_UDP_TUNNEL | | |
613 | SKB_GSO_UDP_TUNNEL_CSUM)) { | |
614 | if ((!(skb_shinfo(skb)->gso_type & | |
615 | SKB_GSO_PARTIAL)) && | |
616 | (skb_shinfo(skb)->gso_type & | |
617 | SKB_GSO_UDP_TUNNEL_CSUM)) { | |
618 | /* Software should clear the udp's checksum | |
619 | * field when tso is needed. | |
620 | */ | |
621 | l4.udp->check = 0; | |
622 | } | |
623 | /* reset l3&l4 pointers from outer to inner headers */ | |
624 | l3.hdr = skb_inner_network_header(skb); | |
625 | l4.hdr = skb_inner_transport_header(skb); | |
626 | ||
627 | /* Software should clear the IPv4's checksum field when | |
628 | * tso is needed. | |
629 | */ | |
630 | if (l3.v4->version == 4) | |
631 | l3.v4->check = 0; | |
632 | } | |
633 | ||
634 | /* normal or tunnel packet*/ | |
635 | l4_offset = l4.hdr - skb->data; | |
636 | hdr_len = (l4.tcp->doff * 4) + l4_offset; | |
637 | ||
638 | /* remove payload length from inner pseudo checksum when tso*/ | |
639 | l4_paylen = skb->len - l4_offset; | |
640 | csum_replace_by_diff(&l4.tcp->check, | |
641 | (__force __wsum)htonl(l4_paylen)); | |
642 | ||
643 | /* find the txbd field values */ | |
644 | *paylen = skb->len - hdr_len; | |
ccc23ef3 PL |
645 | hnae3_set_bit(*type_cs_vlan_tso, |
646 | HNS3_TXD_TSO_B, 1); | |
76ad4f0e S |
647 | |
648 | /* get MSS for TSO */ | |
649 | *mss = skb_shinfo(skb)->gso_size; | |
650 | ||
651 | return 0; | |
652 | } | |
653 | ||
1898d4e4 S |
654 | static int hns3_get_l4_protocol(struct sk_buff *skb, u8 *ol4_proto, |
655 | u8 *il4_proto) | |
76ad4f0e S |
656 | { |
657 | union { | |
658 | struct iphdr *v4; | |
659 | struct ipv6hdr *v6; | |
660 | unsigned char *hdr; | |
661 | } l3; | |
662 | unsigned char *l4_hdr; | |
663 | unsigned char *exthdr; | |
664 | u8 l4_proto_tmp; | |
665 | __be16 frag_off; | |
666 | ||
667 | /* find outer header point */ | |
668 | l3.hdr = skb_network_header(skb); | |
c82a5497 | 669 | l4_hdr = skb_transport_header(skb); |
76ad4f0e S |
670 | |
671 | if (skb->protocol == htons(ETH_P_IPV6)) { | |
672 | exthdr = l3.hdr + sizeof(*l3.v6); | |
673 | l4_proto_tmp = l3.v6->nexthdr; | |
674 | if (l4_hdr != exthdr) | |
675 | ipv6_skip_exthdr(skb, exthdr - skb->data, | |
676 | &l4_proto_tmp, &frag_off); | |
677 | } else if (skb->protocol == htons(ETH_P_IP)) { | |
678 | l4_proto_tmp = l3.v4->protocol; | |
1898d4e4 S |
679 | } else { |
680 | return -EINVAL; | |
76ad4f0e S |
681 | } |
682 | ||
683 | *ol4_proto = l4_proto_tmp; | |
684 | ||
685 | /* tunnel packet */ | |
686 | if (!skb->encapsulation) { | |
687 | *il4_proto = 0; | |
1898d4e4 | 688 | return 0; |
76ad4f0e S |
689 | } |
690 | ||
691 | /* find inner header point */ | |
692 | l3.hdr = skb_inner_network_header(skb); | |
693 | l4_hdr = skb_inner_transport_header(skb); | |
694 | ||
695 | if (l3.v6->version == 6) { | |
696 | exthdr = l3.hdr + sizeof(*l3.v6); | |
697 | l4_proto_tmp = l3.v6->nexthdr; | |
698 | if (l4_hdr != exthdr) | |
699 | ipv6_skip_exthdr(skb, exthdr - skb->data, | |
700 | &l4_proto_tmp, &frag_off); | |
701 | } else if (l3.v4->version == 4) { | |
702 | l4_proto_tmp = l3.v4->protocol; | |
703 | } | |
704 | ||
705 | *il4_proto = l4_proto_tmp; | |
1898d4e4 S |
706 | |
707 | return 0; | |
76ad4f0e S |
708 | } |
709 | ||
710 | static void hns3_set_l2l3l4_len(struct sk_buff *skb, u8 ol4_proto, | |
711 | u8 il4_proto, u32 *type_cs_vlan_tso, | |
712 | u32 *ol_type_vlan_len_msec) | |
713 | { | |
714 | union { | |
715 | struct iphdr *v4; | |
716 | struct ipv6hdr *v6; | |
717 | unsigned char *hdr; | |
718 | } l3; | |
719 | union { | |
720 | struct tcphdr *tcp; | |
721 | struct udphdr *udp; | |
722 | struct gre_base_hdr *gre; | |
723 | unsigned char *hdr; | |
724 | } l4; | |
725 | unsigned char *l2_hdr; | |
726 | u8 l4_proto = ol4_proto; | |
727 | u32 ol2_len; | |
728 | u32 ol3_len; | |
729 | u32 ol4_len; | |
730 | u32 l2_len; | |
731 | u32 l3_len; | |
732 | ||
733 | l3.hdr = skb_network_header(skb); | |
734 | l4.hdr = skb_transport_header(skb); | |
735 | ||
736 | /* compute L2 header size for normal packet, defined in 2 Bytes */ | |
737 | l2_len = l3.hdr - skb->data; | |
ccc23ef3 PL |
738 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M, |
739 | HNS3_TXD_L2LEN_S, l2_len >> 1); | |
76ad4f0e S |
740 | |
741 | /* tunnel packet*/ | |
742 | if (skb->encapsulation) { | |
743 | /* compute OL2 header size, defined in 2 Bytes */ | |
744 | ol2_len = l2_len; | |
ccc23ef3 PL |
745 | hnae3_set_field(*ol_type_vlan_len_msec, |
746 | HNS3_TXD_L2LEN_M, | |
747 | HNS3_TXD_L2LEN_S, ol2_len >> 1); | |
76ad4f0e S |
748 | |
749 | /* compute OL3 header size, defined in 4 Bytes */ | |
750 | ol3_len = l4.hdr - l3.hdr; | |
ccc23ef3 PL |
751 | hnae3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_L3LEN_M, |
752 | HNS3_TXD_L3LEN_S, ol3_len >> 2); | |
76ad4f0e S |
753 | |
754 | /* MAC in UDP, MAC in GRE (0x6558)*/ | |
755 | if ((ol4_proto == IPPROTO_UDP) || (ol4_proto == IPPROTO_GRE)) { | |
756 | /* switch MAC header ptr from outer to inner header.*/ | |
757 | l2_hdr = skb_inner_mac_header(skb); | |
758 | ||
759 | /* compute OL4 header size, defined in 4 Bytes. */ | |
760 | ol4_len = l2_hdr - l4.hdr; | |
ccc23ef3 PL |
761 | hnae3_set_field(*ol_type_vlan_len_msec, |
762 | HNS3_TXD_L4LEN_M, HNS3_TXD_L4LEN_S, | |
763 | ol4_len >> 2); | |
76ad4f0e S |
764 | |
765 | /* switch IP header ptr from outer to inner header */ | |
766 | l3.hdr = skb_inner_network_header(skb); | |
767 | ||
768 | /* compute inner l2 header size, defined in 2 Bytes. */ | |
769 | l2_len = l3.hdr - l2_hdr; | |
ccc23ef3 PL |
770 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L2LEN_M, |
771 | HNS3_TXD_L2LEN_S, l2_len >> 1); | |
76ad4f0e S |
772 | } else { |
773 | /* skb packet types not supported by hardware, | |
774 | * txbd len fild doesn't be filled. | |
775 | */ | |
776 | return; | |
777 | } | |
778 | ||
779 | /* switch L4 header pointer from outer to inner */ | |
780 | l4.hdr = skb_inner_transport_header(skb); | |
781 | ||
782 | l4_proto = il4_proto; | |
783 | } | |
784 | ||
785 | /* compute inner(/normal) L3 header size, defined in 4 Bytes */ | |
786 | l3_len = l4.hdr - l3.hdr; | |
ccc23ef3 PL |
787 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3LEN_M, |
788 | HNS3_TXD_L3LEN_S, l3_len >> 2); | |
76ad4f0e S |
789 | |
790 | /* compute inner(/normal) L4 header size, defined in 4 Bytes */ | |
791 | switch (l4_proto) { | |
792 | case IPPROTO_TCP: | |
ccc23ef3 PL |
793 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, |
794 | HNS3_TXD_L4LEN_S, l4.tcp->doff); | |
76ad4f0e S |
795 | break; |
796 | case IPPROTO_SCTP: | |
ccc23ef3 PL |
797 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, |
798 | HNS3_TXD_L4LEN_S, | |
799 | (sizeof(struct sctphdr) >> 2)); | |
76ad4f0e S |
800 | break; |
801 | case IPPROTO_UDP: | |
ccc23ef3 PL |
802 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L4LEN_M, |
803 | HNS3_TXD_L4LEN_S, | |
804 | (sizeof(struct udphdr) >> 2)); | |
76ad4f0e S |
805 | break; |
806 | default: | |
807 | /* skb packet types not supported by hardware, | |
808 | * txbd len fild doesn't be filled. | |
809 | */ | |
810 | return; | |
811 | } | |
812 | } | |
813 | ||
cfdd6e86 YL |
814 | /* when skb->encapsulation is 0, skb->ip_summed is CHECKSUM_PARTIAL |
815 | * and it is udp packet, which has a dest port as the IANA assigned. | |
816 | * the hardware is expected to do the checksum offload, but the | |
817 | * hardware will not do the checksum offload when udp dest port is | |
818 | * 4789. | |
819 | */ | |
820 | static bool hns3_tunnel_csum_bug(struct sk_buff *skb) | |
821 | { | |
822 | #define IANA_VXLAN_PORT 4789 | |
823 | union { | |
824 | struct tcphdr *tcp; | |
825 | struct udphdr *udp; | |
826 | struct gre_base_hdr *gre; | |
827 | unsigned char *hdr; | |
828 | } l4; | |
829 | ||
830 | l4.hdr = skb_transport_header(skb); | |
831 | ||
832 | if (!(!skb->encapsulation && l4.udp->dest == htons(IANA_VXLAN_PORT))) | |
833 | return false; | |
834 | ||
835 | skb_checksum_help(skb); | |
836 | ||
837 | return true; | |
838 | } | |
839 | ||
76ad4f0e S |
840 | static int hns3_set_l3l4_type_csum(struct sk_buff *skb, u8 ol4_proto, |
841 | u8 il4_proto, u32 *type_cs_vlan_tso, | |
842 | u32 *ol_type_vlan_len_msec) | |
843 | { | |
844 | union { | |
845 | struct iphdr *v4; | |
846 | struct ipv6hdr *v6; | |
847 | unsigned char *hdr; | |
848 | } l3; | |
849 | u32 l4_proto = ol4_proto; | |
850 | ||
851 | l3.hdr = skb_network_header(skb); | |
852 | ||
853 | /* define OL3 type and tunnel type(OL4).*/ | |
854 | if (skb->encapsulation) { | |
855 | /* define outer network header type.*/ | |
856 | if (skb->protocol == htons(ETH_P_IP)) { | |
857 | if (skb_is_gso(skb)) | |
ccc23ef3 PL |
858 | hnae3_set_field(*ol_type_vlan_len_msec, |
859 | HNS3_TXD_OL3T_M, | |
860 | HNS3_TXD_OL3T_S, | |
861 | HNS3_OL3T_IPV4_CSUM); | |
76ad4f0e | 862 | else |
ccc23ef3 PL |
863 | hnae3_set_field(*ol_type_vlan_len_msec, |
864 | HNS3_TXD_OL3T_M, | |
865 | HNS3_TXD_OL3T_S, | |
866 | HNS3_OL3T_IPV4_NO_CSUM); | |
76ad4f0e S |
867 | |
868 | } else if (skb->protocol == htons(ETH_P_IPV6)) { | |
ccc23ef3 PL |
869 | hnae3_set_field(*ol_type_vlan_len_msec, HNS3_TXD_OL3T_M, |
870 | HNS3_TXD_OL3T_S, HNS3_OL3T_IPV6); | |
76ad4f0e S |
871 | } |
872 | ||
873 | /* define tunnel type(OL4).*/ | |
874 | switch (l4_proto) { | |
875 | case IPPROTO_UDP: | |
ccc23ef3 PL |
876 | hnae3_set_field(*ol_type_vlan_len_msec, |
877 | HNS3_TXD_TUNTYPE_M, | |
878 | HNS3_TXD_TUNTYPE_S, | |
879 | HNS3_TUN_MAC_IN_UDP); | |
76ad4f0e S |
880 | break; |
881 | case IPPROTO_GRE: | |
ccc23ef3 PL |
882 | hnae3_set_field(*ol_type_vlan_len_msec, |
883 | HNS3_TXD_TUNTYPE_M, | |
884 | HNS3_TXD_TUNTYPE_S, | |
885 | HNS3_TUN_NVGRE); | |
76ad4f0e S |
886 | break; |
887 | default: | |
888 | /* drop the skb tunnel packet if hardware don't support, | |
889 | * because hardware can't calculate csum when TSO. | |
890 | */ | |
891 | if (skb_is_gso(skb)) | |
892 | return -EDOM; | |
893 | ||
894 | /* the stack computes the IP header already, | |
895 | * driver calculate l4 checksum when not TSO. | |
896 | */ | |
897 | skb_checksum_help(skb); | |
898 | return 0; | |
899 | } | |
900 | ||
901 | l3.hdr = skb_inner_network_header(skb); | |
902 | l4_proto = il4_proto; | |
903 | } | |
904 | ||
905 | if (l3.v4->version == 4) { | |
ccc23ef3 PL |
906 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M, |
907 | HNS3_TXD_L3T_S, HNS3_L3T_IPV4); | |
76ad4f0e S |
908 | |
909 | /* the stack computes the IP header already, the only time we | |
910 | * need the hardware to recompute it is in the case of TSO. | |
911 | */ | |
912 | if (skb_is_gso(skb)) | |
ccc23ef3 | 913 | hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L3CS_B, 1); |
76ad4f0e | 914 | } else if (l3.v6->version == 6) { |
ccc23ef3 PL |
915 | hnae3_set_field(*type_cs_vlan_tso, HNS3_TXD_L3T_M, |
916 | HNS3_TXD_L3T_S, HNS3_L3T_IPV6); | |
76ad4f0e S |
917 | } |
918 | ||
919 | switch (l4_proto) { | |
920 | case IPPROTO_TCP: | |
79fa1b6a | 921 | hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); |
ccc23ef3 PL |
922 | hnae3_set_field(*type_cs_vlan_tso, |
923 | HNS3_TXD_L4T_M, | |
924 | HNS3_TXD_L4T_S, | |
925 | HNS3_L4T_TCP); | |
76ad4f0e S |
926 | break; |
927 | case IPPROTO_UDP: | |
cfdd6e86 YL |
928 | if (hns3_tunnel_csum_bug(skb)) |
929 | break; | |
930 | ||
79fa1b6a | 931 | hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); |
ccc23ef3 PL |
932 | hnae3_set_field(*type_cs_vlan_tso, |
933 | HNS3_TXD_L4T_M, | |
934 | HNS3_TXD_L4T_S, | |
935 | HNS3_L4T_UDP); | |
76ad4f0e S |
936 | break; |
937 | case IPPROTO_SCTP: | |
79fa1b6a | 938 | hnae3_set_bit(*type_cs_vlan_tso, HNS3_TXD_L4CS_B, 1); |
ccc23ef3 PL |
939 | hnae3_set_field(*type_cs_vlan_tso, |
940 | HNS3_TXD_L4T_M, | |
941 | HNS3_TXD_L4T_S, | |
942 | HNS3_L4T_SCTP); | |
76ad4f0e S |
943 | break; |
944 | default: | |
945 | /* drop the skb tunnel packet if hardware don't support, | |
946 | * because hardware can't calculate csum when TSO. | |
947 | */ | |
948 | if (skb_is_gso(skb)) | |
949 | return -EDOM; | |
950 | ||
951 | /* the stack computes the IP header already, | |
952 | * driver calculate l4 checksum when not TSO. | |
953 | */ | |
954 | skb_checksum_help(skb); | |
955 | return 0; | |
956 | } | |
957 | ||
958 | return 0; | |
959 | } | |
960 | ||
961 | static void hns3_set_txbd_baseinfo(u16 *bdtp_fe_sc_vld_ra_ri, int frag_end) | |
962 | { | |
963 | /* Config bd buffer end */ | |
ccc23ef3 PL |
964 | hnae3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_BDTYPE_M, |
965 | HNS3_TXD_BDTYPE_S, 0); | |
966 | hnae3_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_FE_B, !!frag_end); | |
967 | hnae3_set_bit(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_VLD_B, 1); | |
968 | hnae3_set_field(*bdtp_fe_sc_vld_ra_ri, HNS3_TXD_SC_M, HNS3_TXD_SC_S, 0); | |
76ad4f0e S |
969 | } |
970 | ||
1fdd8dc5 PL |
971 | static int hns3_fill_desc_vtags(struct sk_buff *skb, |
972 | struct hns3_enet_ring *tx_ring, | |
973 | u32 *inner_vlan_flag, | |
974 | u32 *out_vlan_flag, | |
975 | u16 *inner_vtag, | |
976 | u16 *out_vtag) | |
977 | { | |
978 | #define HNS3_TX_VLAN_PRIO_SHIFT 13 | |
979 | ||
980 | if (skb->protocol == htons(ETH_P_8021Q) && | |
981 | !(tx_ring->tqp->handle->kinfo.netdev->features & | |
982 | NETIF_F_HW_VLAN_CTAG_TX)) { | |
983 | /* When HW VLAN acceleration is turned off, and the stack | |
984 | * sets the protocol to 802.1q, the driver just need to | |
985 | * set the protocol to the encapsulated ethertype. | |
986 | */ | |
987 | skb->protocol = vlan_get_protocol(skb); | |
988 | return 0; | |
989 | } | |
990 | ||
991 | if (skb_vlan_tag_present(skb)) { | |
992 | u16 vlan_tag; | |
993 | ||
994 | vlan_tag = skb_vlan_tag_get(skb); | |
995 | vlan_tag |= (skb->priority & 0x7) << HNS3_TX_VLAN_PRIO_SHIFT; | |
996 | ||
997 | /* Based on hw strategy, use out_vtag in two layer tag case, | |
998 | * and use inner_vtag in one tag case. | |
999 | */ | |
1000 | if (skb->protocol == htons(ETH_P_8021Q)) { | |
ccc23ef3 | 1001 | hnae3_set_bit(*out_vlan_flag, HNS3_TXD_OVLAN_B, 1); |
1fdd8dc5 PL |
1002 | *out_vtag = vlan_tag; |
1003 | } else { | |
ccc23ef3 | 1004 | hnae3_set_bit(*inner_vlan_flag, HNS3_TXD_VLAN_B, 1); |
1fdd8dc5 PL |
1005 | *inner_vtag = vlan_tag; |
1006 | } | |
1007 | } else if (skb->protocol == htons(ETH_P_8021Q)) { | |
1008 | struct vlan_ethhdr *vhdr; | |
1009 | int rc; | |
1010 | ||
1011 | rc = skb_cow_head(skb, 0); | |
1012 | if (rc < 0) | |
1013 | return rc; | |
1014 | vhdr = (struct vlan_ethhdr *)skb->data; | |
1015 | vhdr->h_vlan_TCI |= cpu_to_be16((skb->priority & 0x7) | |
1016 | << HNS3_TX_VLAN_PRIO_SHIFT); | |
1017 | } | |
1018 | ||
1019 | skb->protocol = vlan_get_protocol(skb); | |
1020 | return 0; | |
1021 | } | |
1022 | ||
76ad4f0e | 1023 | static int hns3_fill_desc(struct hns3_enet_ring *ring, void *priv, |
91040825 | 1024 | int size, int frag_end, enum hns_desc_type type) |
76ad4f0e S |
1025 | { |
1026 | struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_use]; | |
1027 | struct hns3_desc *desc = &ring->desc[ring->next_to_use]; | |
91040825 | 1028 | struct device *dev = ring_to_dev(ring); |
76ad4f0e S |
1029 | u32 ol_type_vlan_len_msec = 0; |
1030 | u16 bdtp_fe_sc_vld_ra_ri = 0; | |
91040825 | 1031 | struct skb_frag_struct *frag; |
13491411 | 1032 | unsigned int frag_buf_num; |
76ad4f0e S |
1033 | u32 type_cs_vlan_tso = 0; |
1034 | struct sk_buff *skb; | |
1fdd8dc5 PL |
1035 | u16 inner_vtag = 0; |
1036 | u16 out_vtag = 0; | |
13491411 FL |
1037 | unsigned int k; |
1038 | int sizeoflast; | |
76ad4f0e | 1039 | u32 paylen = 0; |
91040825 | 1040 | dma_addr_t dma; |
76ad4f0e | 1041 | u16 mss = 0; |
76ad4f0e S |
1042 | u8 ol4_proto; |
1043 | u8 il4_proto; | |
1044 | int ret; | |
1045 | ||
76ad4f0e S |
1046 | if (type == DESC_TYPE_SKB) { |
1047 | skb = (struct sk_buff *)priv; | |
a90bb9a5 | 1048 | paylen = skb->len; |
76ad4f0e | 1049 | |
1fdd8dc5 PL |
1050 | ret = hns3_fill_desc_vtags(skb, ring, &type_cs_vlan_tso, |
1051 | &ol_type_vlan_len_msec, | |
1052 | &inner_vtag, &out_vtag); | |
1053 | if (unlikely(ret)) | |
1054 | return ret; | |
1055 | ||
76ad4f0e S |
1056 | if (skb->ip_summed == CHECKSUM_PARTIAL) { |
1057 | skb_reset_mac_len(skb); | |
76ad4f0e | 1058 | |
1898d4e4 S |
1059 | ret = hns3_get_l4_protocol(skb, &ol4_proto, &il4_proto); |
1060 | if (ret) | |
1061 | return ret; | |
76ad4f0e S |
1062 | hns3_set_l2l3l4_len(skb, ol4_proto, il4_proto, |
1063 | &type_cs_vlan_tso, | |
1064 | &ol_type_vlan_len_msec); | |
1065 | ret = hns3_set_l3l4_type_csum(skb, ol4_proto, il4_proto, | |
1066 | &type_cs_vlan_tso, | |
1067 | &ol_type_vlan_len_msec); | |
1068 | if (ret) | |
1069 | return ret; | |
1070 | ||
1071 | ret = hns3_set_tso(skb, &paylen, &mss, | |
1072 | &type_cs_vlan_tso); | |
1073 | if (ret) | |
1074 | return ret; | |
1075 | } | |
1076 | ||
1077 | /* Set txbd */ | |
1078 | desc->tx.ol_type_vlan_len_msec = | |
1079 | cpu_to_le32(ol_type_vlan_len_msec); | |
1080 | desc->tx.type_cs_vlan_tso_len = | |
1081 | cpu_to_le32(type_cs_vlan_tso); | |
a90bb9a5 | 1082 | desc->tx.paylen = cpu_to_le32(paylen); |
76ad4f0e | 1083 | desc->tx.mss = cpu_to_le16(mss); |
1fdd8dc5 PL |
1084 | desc->tx.vlan_tag = cpu_to_le16(inner_vtag); |
1085 | desc->tx.outer_vlan_tag = cpu_to_le16(out_vtag); | |
91040825 PL |
1086 | |
1087 | dma = dma_map_single(dev, skb->data, size, DMA_TO_DEVICE); | |
1088 | } else { | |
1089 | frag = (struct skb_frag_struct *)priv; | |
1090 | dma = skb_frag_dma_map(dev, frag, 0, size, DMA_TO_DEVICE); | |
1091 | } | |
1092 | ||
1093 | if (dma_mapping_error(ring->dev, dma)) { | |
1094 | ring->stats.sw_err_cnt++; | |
1095 | return -ENOMEM; | |
76ad4f0e S |
1096 | } |
1097 | ||
6a3bff0d FL |
1098 | desc_cb->length = size; |
1099 | ||
13491411 FL |
1100 | frag_buf_num = (size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE; |
1101 | sizeoflast = size % HNS3_MAX_BD_SIZE; | |
1102 | sizeoflast = sizeoflast ? sizeoflast : HNS3_MAX_BD_SIZE; | |
1103 | ||
1104 | /* When frag size is bigger than hardware limit, split this frag */ | |
1105 | for (k = 0; k < frag_buf_num; k++) { | |
1106 | /* The txbd's baseinfo of DESC_TYPE_PAGE & DESC_TYPE_SKB */ | |
1107 | desc_cb->priv = priv; | |
13491411 FL |
1108 | desc_cb->dma = dma + HNS3_MAX_BD_SIZE * k; |
1109 | desc_cb->type = (type == DESC_TYPE_SKB && !k) ? | |
1110 | DESC_TYPE_SKB : DESC_TYPE_PAGE; | |
1111 | ||
1112 | /* now, fill the descriptor */ | |
1113 | desc->addr = cpu_to_le64(dma + HNS3_MAX_BD_SIZE * k); | |
6a3bff0d FL |
1114 | desc->tx.send_size = cpu_to_le16((k == frag_buf_num - 1) ? |
1115 | (u16)sizeoflast : (u16)HNS3_MAX_BD_SIZE); | |
13491411 FL |
1116 | hns3_set_txbd_baseinfo(&bdtp_fe_sc_vld_ra_ri, |
1117 | frag_end && (k == frag_buf_num - 1) ? | |
1118 | 1 : 0); | |
1119 | desc->tx.bdtp_fe_sc_vld_ra_ri = | |
1120 | cpu_to_le16(bdtp_fe_sc_vld_ra_ri); | |
1121 | ||
1122 | /* move ring pointer to next.*/ | |
1123 | ring_ptr_move_fw(ring, next_to_use); | |
1124 | ||
1125 | desc_cb = &ring->desc_cb[ring->next_to_use]; | |
1126 | desc = &ring->desc[ring->next_to_use]; | |
1127 | } | |
76ad4f0e S |
1128 | |
1129 | return 0; | |
1130 | } | |
1131 | ||
76ad4f0e S |
1132 | static int hns3_nic_maybe_stop_tso(struct sk_buff **out_skb, int *bnum, |
1133 | struct hns3_enet_ring *ring) | |
1134 | { | |
1135 | struct sk_buff *skb = *out_skb; | |
1136 | struct skb_frag_struct *frag; | |
1137 | int bdnum_for_frag; | |
1138 | int frag_num; | |
1139 | int buf_num; | |
1140 | int size; | |
1141 | int i; | |
1142 | ||
1143 | size = skb_headlen(skb); | |
1144 | buf_num = (size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE; | |
1145 | ||
1146 | frag_num = skb_shinfo(skb)->nr_frags; | |
1147 | for (i = 0; i < frag_num; i++) { | |
1148 | frag = &skb_shinfo(skb)->frags[i]; | |
1149 | size = skb_frag_size(frag); | |
1150 | bdnum_for_frag = | |
1151 | (size + HNS3_MAX_BD_SIZE - 1) / HNS3_MAX_BD_SIZE; | |
1152 | if (bdnum_for_frag > HNS3_MAX_BD_PER_FRAG) | |
1153 | return -ENOMEM; | |
1154 | ||
1155 | buf_num += bdnum_for_frag; | |
1156 | } | |
1157 | ||
1158 | if (buf_num > ring_space(ring)) | |
1159 | return -EBUSY; | |
1160 | ||
1161 | *bnum = buf_num; | |
1162 | return 0; | |
1163 | } | |
1164 | ||
1165 | static int hns3_nic_maybe_stop_tx(struct sk_buff **out_skb, int *bnum, | |
1166 | struct hns3_enet_ring *ring) | |
1167 | { | |
1168 | struct sk_buff *skb = *out_skb; | |
1169 | int buf_num; | |
1170 | ||
1171 | /* No. of segments (plus a header) */ | |
1172 | buf_num = skb_shinfo(skb)->nr_frags + 1; | |
1173 | ||
91a2f02f | 1174 | if (unlikely(ring_space(ring) < buf_num)) |
76ad4f0e S |
1175 | return -EBUSY; |
1176 | ||
1177 | *bnum = buf_num; | |
1178 | ||
1179 | return 0; | |
1180 | } | |
1181 | ||
fc09d03d | 1182 | static void hns3_clear_desc(struct hns3_enet_ring *ring, int next_to_use_orig) |
76ad4f0e S |
1183 | { |
1184 | struct device *dev = ring_to_dev(ring); | |
1185 | unsigned int i; | |
1186 | ||
1187 | for (i = 0; i < ring->desc_num; i++) { | |
1188 | /* check if this is where we started */ | |
1189 | if (ring->next_to_use == next_to_use_orig) | |
1190 | break; | |
1191 | ||
1192 | /* unmap the descriptor dma address */ | |
1193 | if (ring->desc_cb[ring->next_to_use].type == DESC_TYPE_SKB) | |
1194 | dma_unmap_single(dev, | |
1195 | ring->desc_cb[ring->next_to_use].dma, | |
1196 | ring->desc_cb[ring->next_to_use].length, | |
1197 | DMA_TO_DEVICE); | |
6a3bff0d | 1198 | else if (ring->desc_cb[ring->next_to_use].length) |
76ad4f0e S |
1199 | dma_unmap_page(dev, |
1200 | ring->desc_cb[ring->next_to_use].dma, | |
1201 | ring->desc_cb[ring->next_to_use].length, | |
1202 | DMA_TO_DEVICE); | |
1203 | ||
6a3bff0d FL |
1204 | ring->desc_cb[ring->next_to_use].length = 0; |
1205 | ||
76ad4f0e S |
1206 | /* rollback one */ |
1207 | ring_ptr_move_bw(ring, next_to_use); | |
1208 | } | |
1209 | } | |
1210 | ||
d43e5aca | 1211 | netdev_tx_t hns3_nic_net_xmit(struct sk_buff *skb, struct net_device *netdev) |
76ad4f0e S |
1212 | { |
1213 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
1214 | struct hns3_nic_ring_data *ring_data = | |
1215 | &tx_ring_data(priv, skb->queue_mapping); | |
1216 | struct hns3_enet_ring *ring = ring_data->ring; | |
76ad4f0e S |
1217 | struct netdev_queue *dev_queue; |
1218 | struct skb_frag_struct *frag; | |
1219 | int next_to_use_head; | |
1220 | int next_to_use_frag; | |
76ad4f0e S |
1221 | int buf_num; |
1222 | int seg_num; | |
1223 | int size; | |
1224 | int ret; | |
1225 | int i; | |
1226 | ||
1227 | /* Prefetch the data used later */ | |
1228 | prefetch(skb->data); | |
1229 | ||
1230 | switch (priv->ops.maybe_stop_tx(&skb, &buf_num, ring)) { | |
1231 | case -EBUSY: | |
1232 | u64_stats_update_begin(&ring->syncp); | |
1233 | ring->stats.tx_busy++; | |
1234 | u64_stats_update_end(&ring->syncp); | |
1235 | ||
1236 | goto out_net_tx_busy; | |
1237 | case -ENOMEM: | |
1238 | u64_stats_update_begin(&ring->syncp); | |
1239 | ring->stats.sw_err_cnt++; | |
1240 | u64_stats_update_end(&ring->syncp); | |
1241 | netdev_err(netdev, "no memory to xmit!\n"); | |
1242 | ||
1243 | goto out_err_tx_ok; | |
1244 | default: | |
1245 | break; | |
1246 | } | |
1247 | ||
1248 | /* No. of segments (plus a header) */ | |
1249 | seg_num = skb_shinfo(skb)->nr_frags + 1; | |
1250 | /* Fill the first part */ | |
1251 | size = skb_headlen(skb); | |
1252 | ||
1253 | next_to_use_head = ring->next_to_use; | |
1254 | ||
91040825 PL |
1255 | ret = priv->ops.fill_desc(ring, skb, size, seg_num == 1 ? 1 : 0, |
1256 | DESC_TYPE_SKB); | |
76ad4f0e | 1257 | if (ret) |
fc09d03d | 1258 | goto head_fill_err; |
76ad4f0e S |
1259 | |
1260 | next_to_use_frag = ring->next_to_use; | |
1261 | /* Fill the fragments */ | |
1262 | for (i = 1; i < seg_num; i++) { | |
1263 | frag = &skb_shinfo(skb)->frags[i - 1]; | |
1264 | size = skb_frag_size(frag); | |
91040825 PL |
1265 | |
1266 | ret = priv->ops.fill_desc(ring, frag, size, | |
1267 | seg_num - 1 == i ? 1 : 0, | |
1268 | DESC_TYPE_PAGE); | |
76ad4f0e S |
1269 | |
1270 | if (ret) | |
fc09d03d | 1271 | goto frag_fill_err; |
76ad4f0e S |
1272 | } |
1273 | ||
1274 | /* Complete translate all packets */ | |
1275 | dev_queue = netdev_get_tx_queue(netdev, ring_data->queue_index); | |
1276 | netdev_tx_sent_queue(dev_queue, skb->len); | |
1277 | ||
1278 | wmb(); /* Commit all data before submit */ | |
1279 | ||
ccc23ef3 | 1280 | hnae3_queue_xmit(ring->tqp, buf_num); |
76ad4f0e S |
1281 | |
1282 | return NETDEV_TX_OK; | |
1283 | ||
fc09d03d FL |
1284 | frag_fill_err: |
1285 | hns3_clear_desc(ring, next_to_use_frag); | |
76ad4f0e | 1286 | |
fc09d03d FL |
1287 | head_fill_err: |
1288 | hns3_clear_desc(ring, next_to_use_head); | |
76ad4f0e S |
1289 | |
1290 | out_err_tx_ok: | |
1291 | dev_kfree_skb_any(skb); | |
1292 | return NETDEV_TX_OK; | |
1293 | ||
1294 | out_net_tx_busy: | |
1295 | netif_stop_subqueue(netdev, ring_data->queue_index); | |
1296 | smp_mb(); /* Commit all data before submit */ | |
1297 | ||
1298 | return NETDEV_TX_BUSY; | |
1299 | } | |
1300 | ||
1301 | static int hns3_nic_net_set_mac_address(struct net_device *netdev, void *p) | |
1302 | { | |
9780cb97 | 1303 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e S |
1304 | struct sockaddr *mac_addr = p; |
1305 | int ret; | |
1306 | ||
1307 | if (!mac_addr || !is_valid_ether_addr((const u8 *)mac_addr->sa_data)) | |
1308 | return -EADDRNOTAVAIL; | |
1309 | ||
f37fc980 JS |
1310 | if (ether_addr_equal(netdev->dev_addr, mac_addr->sa_data)) { |
1311 | netdev_info(netdev, "already using mac address %pM\n", | |
1312 | mac_addr->sa_data); | |
1313 | return 0; | |
1314 | } | |
1315 | ||
3cbf5e2d | 1316 | ret = h->ae_algo->ops->set_mac_addr(h, mac_addr->sa_data, false); |
76ad4f0e S |
1317 | if (ret) { |
1318 | netdev_err(netdev, "set_mac_address fail, ret=%d!\n", ret); | |
1319 | return ret; | |
1320 | } | |
1321 | ||
1322 | ether_addr_copy(netdev->dev_addr, mac_addr->sa_data); | |
1323 | ||
1324 | return 0; | |
1325 | } | |
1326 | ||
a185d723 XW |
1327 | static int hns3_nic_do_ioctl(struct net_device *netdev, |
1328 | struct ifreq *ifr, int cmd) | |
1329 | { | |
1330 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
1331 | ||
1332 | if (!netif_running(netdev)) | |
1333 | return -EINVAL; | |
1334 | ||
1335 | if (!h->ae_algo->ops->do_ioctl) | |
1336 | return -EOPNOTSUPP; | |
1337 | ||
1338 | return h->ae_algo->ops->do_ioctl(h, ifr, cmd); | |
1339 | } | |
1340 | ||
76ad4f0e S |
1341 | static int hns3_nic_set_features(struct net_device *netdev, |
1342 | netdev_features_t features) | |
1343 | { | |
21b6fd34 | 1344 | netdev_features_t changed = netdev->features ^ features; |
76ad4f0e | 1345 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
5f9a7732 | 1346 | struct hnae3_handle *h = priv->ae_handle; |
5f9a7732 | 1347 | int ret; |
76ad4f0e | 1348 | |
21b6fd34 | 1349 | if (changed & (NETIF_F_TSO | NETIF_F_TSO6)) { |
e4c38d6e | 1350 | if (features & (NETIF_F_TSO | NETIF_F_TSO6)) |
21b6fd34 | 1351 | priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso; |
e4c38d6e | 1352 | else |
21b6fd34 | 1353 | priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx; |
76ad4f0e S |
1354 | } |
1355 | ||
88576b4b JS |
1356 | if ((changed & NETIF_F_HW_VLAN_CTAG_FILTER) && |
1357 | h->ae_algo->ops->enable_vlan_filter) { | |
21b6fd34 JS |
1358 | if (features & NETIF_F_HW_VLAN_CTAG_FILTER) |
1359 | h->ae_algo->ops->enable_vlan_filter(h, true); | |
1360 | else | |
1361 | h->ae_algo->ops->enable_vlan_filter(h, false); | |
1362 | } | |
d818396d | 1363 | |
88576b4b JS |
1364 | if ((changed & NETIF_F_HW_VLAN_CTAG_RX) && |
1365 | h->ae_algo->ops->enable_hw_strip_rxvtag) { | |
5f9a7732 PL |
1366 | if (features & NETIF_F_HW_VLAN_CTAG_RX) |
1367 | ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, true); | |
1368 | else | |
1369 | ret = h->ae_algo->ops->enable_hw_strip_rxvtag(h, false); | |
1370 | ||
1371 | if (ret) | |
1372 | return ret; | |
1373 | } | |
1374 | ||
d1f04a80 JS |
1375 | if ((changed & NETIF_F_NTUPLE) && h->ae_algo->ops->enable_fd) { |
1376 | if (features & NETIF_F_NTUPLE) | |
1377 | h->ae_algo->ops->enable_fd(h, true); | |
1378 | else | |
1379 | h->ae_algo->ops->enable_fd(h, false); | |
1380 | } | |
1381 | ||
76ad4f0e S |
1382 | netdev->features = features; |
1383 | return 0; | |
1384 | } | |
1385 | ||
9596f6f0 PL |
1386 | static void hns3_nic_get_stats64(struct net_device *netdev, |
1387 | struct rtnl_link_stats64 *stats) | |
76ad4f0e S |
1388 | { |
1389 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
1390 | int queue_num = priv->ae_handle->kinfo.num_tqps; | |
7a5d2a39 | 1391 | struct hnae3_handle *handle = priv->ae_handle; |
76ad4f0e S |
1392 | struct hns3_enet_ring *ring; |
1393 | unsigned int start; | |
1394 | unsigned int idx; | |
1395 | u64 tx_bytes = 0; | |
1396 | u64 rx_bytes = 0; | |
1397 | u64 tx_pkts = 0; | |
1398 | u64 rx_pkts = 0; | |
0a83231f JS |
1399 | u64 tx_drop = 0; |
1400 | u64 rx_drop = 0; | |
76ad4f0e | 1401 | |
a3083abb JS |
1402 | if (test_bit(HNS3_NIC_STATE_DOWN, &priv->state)) |
1403 | return; | |
1404 | ||
7a5d2a39 JS |
1405 | handle->ae_algo->ops->update_stats(handle, &netdev->stats); |
1406 | ||
76ad4f0e S |
1407 | for (idx = 0; idx < queue_num; idx++) { |
1408 | /* fetch the tx stats */ | |
1409 | ring = priv->ring_data[idx].ring; | |
1410 | do { | |
d36d36ce | 1411 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
76ad4f0e S |
1412 | tx_bytes += ring->stats.tx_bytes; |
1413 | tx_pkts += ring->stats.tx_pkts; | |
0a83231f JS |
1414 | tx_drop += ring->stats.tx_busy; |
1415 | tx_drop += ring->stats.sw_err_cnt; | |
76ad4f0e S |
1416 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1417 | ||
1418 | /* fetch the rx stats */ | |
1419 | ring = priv->ring_data[idx + queue_num].ring; | |
1420 | do { | |
d36d36ce | 1421 | start = u64_stats_fetch_begin_irq(&ring->syncp); |
76ad4f0e S |
1422 | rx_bytes += ring->stats.rx_bytes; |
1423 | rx_pkts += ring->stats.rx_pkts; | |
0a83231f JS |
1424 | rx_drop += ring->stats.non_vld_descs; |
1425 | rx_drop += ring->stats.err_pkt_len; | |
1426 | rx_drop += ring->stats.l2_err; | |
76ad4f0e S |
1427 | } while (u64_stats_fetch_retry_irq(&ring->syncp, start)); |
1428 | } | |
1429 | ||
1430 | stats->tx_bytes = tx_bytes; | |
1431 | stats->tx_packets = tx_pkts; | |
1432 | stats->rx_bytes = rx_bytes; | |
1433 | stats->rx_packets = rx_pkts; | |
1434 | ||
1435 | stats->rx_errors = netdev->stats.rx_errors; | |
1436 | stats->multicast = netdev->stats.multicast; | |
1437 | stats->rx_length_errors = netdev->stats.rx_length_errors; | |
1438 | stats->rx_crc_errors = netdev->stats.rx_crc_errors; | |
1439 | stats->rx_missed_errors = netdev->stats.rx_missed_errors; | |
1440 | ||
1441 | stats->tx_errors = netdev->stats.tx_errors; | |
0a83231f JS |
1442 | stats->rx_dropped = rx_drop + netdev->stats.rx_dropped; |
1443 | stats->tx_dropped = tx_drop + netdev->stats.tx_dropped; | |
76ad4f0e S |
1444 | stats->collisions = netdev->stats.collisions; |
1445 | stats->rx_over_errors = netdev->stats.rx_over_errors; | |
1446 | stats->rx_frame_errors = netdev->stats.rx_frame_errors; | |
1447 | stats->rx_fifo_errors = netdev->stats.rx_fifo_errors; | |
1448 | stats->tx_aborted_errors = netdev->stats.tx_aborted_errors; | |
1449 | stats->tx_carrier_errors = netdev->stats.tx_carrier_errors; | |
1450 | stats->tx_fifo_errors = netdev->stats.tx_fifo_errors; | |
1451 | stats->tx_heartbeat_errors = netdev->stats.tx_heartbeat_errors; | |
1452 | stats->tx_window_errors = netdev->stats.tx_window_errors; | |
1453 | stats->rx_compressed = netdev->stats.rx_compressed; | |
1454 | stats->tx_compressed = netdev->stats.tx_compressed; | |
1455 | } | |
1456 | ||
30d240df | 1457 | static int hns3_setup_tc(struct net_device *netdev, void *type_data) |
76ad4f0e | 1458 | { |
30d240df | 1459 | struct tc_mqprio_qopt_offload *mqprio_qopt = type_data; |
9780cb97 | 1460 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e | 1461 | struct hnae3_knic_private_info *kinfo = &h->kinfo; |
30d240df YL |
1462 | u8 *prio_tc = mqprio_qopt->qopt.prio_tc_map; |
1463 | u8 tc = mqprio_qopt->qopt.num_tc; | |
1464 | u16 mode = mqprio_qopt->mode; | |
1465 | u8 hw = mqprio_qopt->qopt.hw; | |
1466 | bool if_running; | |
76ad4f0e S |
1467 | int ret; |
1468 | ||
30d240df YL |
1469 | if (!((hw == TC_MQPRIO_HW_OFFLOAD_TCS && |
1470 | mode == TC_MQPRIO_MODE_CHANNEL) || (!hw && tc == 0))) | |
1471 | return -EOPNOTSUPP; | |
1472 | ||
76ad4f0e S |
1473 | if (tc > HNAE3_MAX_TC) |
1474 | return -EINVAL; | |
1475 | ||
76ad4f0e S |
1476 | if (!netdev) |
1477 | return -EINVAL; | |
1478 | ||
30d240df YL |
1479 | if_running = netif_running(netdev); |
1480 | if (if_running) { | |
1481 | hns3_nic_net_stop(netdev); | |
1482 | msleep(100); | |
76ad4f0e S |
1483 | } |
1484 | ||
30d240df YL |
1485 | ret = (kinfo->dcb_ops && kinfo->dcb_ops->setup_tc) ? |
1486 | kinfo->dcb_ops->setup_tc(h, tc, prio_tc) : -EOPNOTSUPP; | |
76ad4f0e | 1487 | if (ret) |
30d240df YL |
1488 | goto out; |
1489 | ||
30d240df YL |
1490 | ret = hns3_nic_set_real_num_queue(netdev); |
1491 | ||
1492 | out: | |
1493 | if (if_running) | |
1494 | hns3_nic_net_open(netdev); | |
1495 | ||
1496 | return ret; | |
76ad4f0e S |
1497 | } |
1498 | ||
2572ac53 | 1499 | static int hns3_nic_setup_tc(struct net_device *dev, enum tc_setup_type type, |
de4784ca | 1500 | void *type_data) |
76ad4f0e | 1501 | { |
575ed7d3 | 1502 | if (type != TC_SETUP_QDISC_MQPRIO) |
38cf0426 | 1503 | return -EOPNOTSUPP; |
76ad4f0e | 1504 | |
30d240df | 1505 | return hns3_setup_tc(dev, type_data); |
76ad4f0e S |
1506 | } |
1507 | ||
1508 | static int hns3_vlan_rx_add_vid(struct net_device *netdev, | |
1509 | __be16 proto, u16 vid) | |
1510 | { | |
9780cb97 | 1511 | struct hnae3_handle *h = hns3_get_handle(netdev); |
103ce052 | 1512 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
76ad4f0e S |
1513 | int ret = -EIO; |
1514 | ||
1515 | if (h->ae_algo->ops->set_vlan_filter) | |
1516 | ret = h->ae_algo->ops->set_vlan_filter(h, proto, vid, false); | |
1517 | ||
103ce052 YL |
1518 | if (!ret) |
1519 | set_bit(vid, priv->active_vlans); | |
1520 | ||
76ad4f0e S |
1521 | return ret; |
1522 | } | |
1523 | ||
1524 | static int hns3_vlan_rx_kill_vid(struct net_device *netdev, | |
1525 | __be16 proto, u16 vid) | |
1526 | { | |
9780cb97 | 1527 | struct hnae3_handle *h = hns3_get_handle(netdev); |
103ce052 | 1528 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
76ad4f0e S |
1529 | int ret = -EIO; |
1530 | ||
1531 | if (h->ae_algo->ops->set_vlan_filter) | |
1532 | ret = h->ae_algo->ops->set_vlan_filter(h, proto, vid, true); | |
1533 | ||
103ce052 YL |
1534 | if (!ret) |
1535 | clear_bit(vid, priv->active_vlans); | |
1536 | ||
76ad4f0e S |
1537 | return ret; |
1538 | } | |
1539 | ||
abe62a63 | 1540 | static int hns3_restore_vlan(struct net_device *netdev) |
103ce052 YL |
1541 | { |
1542 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
abe62a63 | 1543 | int ret = 0; |
103ce052 | 1544 | u16 vid; |
103ce052 YL |
1545 | |
1546 | for_each_set_bit(vid, priv->active_vlans, VLAN_N_VID) { | |
1547 | ret = hns3_vlan_rx_add_vid(netdev, htons(ETH_P_8021Q), vid); | |
abe62a63 HT |
1548 | if (ret) { |
1549 | netdev_err(netdev, "Restore vlan: %d filter, ret:%d\n", | |
1550 | vid, ret); | |
1551 | return ret; | |
1552 | } | |
103ce052 | 1553 | } |
abe62a63 HT |
1554 | |
1555 | return ret; | |
103ce052 YL |
1556 | } |
1557 | ||
76ad4f0e S |
1558 | static int hns3_ndo_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, |
1559 | u8 qos, __be16 vlan_proto) | |
1560 | { | |
9780cb97 | 1561 | struct hnae3_handle *h = hns3_get_handle(netdev); |
76ad4f0e S |
1562 | int ret = -EIO; |
1563 | ||
1564 | if (h->ae_algo->ops->set_vf_vlan_filter) | |
1565 | ret = h->ae_algo->ops->set_vf_vlan_filter(h, vf, vlan, | |
1566 | qos, vlan_proto); | |
1567 | ||
1568 | return ret; | |
1569 | } | |
1570 | ||
a8e8b7ff S |
1571 | static int hns3_nic_change_mtu(struct net_device *netdev, int new_mtu) |
1572 | { | |
9780cb97 | 1573 | struct hnae3_handle *h = hns3_get_handle(netdev); |
a8e8b7ff S |
1574 | int ret; |
1575 | ||
1576 | if (!h->ae_algo->ops->set_mtu) | |
1577 | return -EOPNOTSUPP; | |
1578 | ||
a8e8b7ff | 1579 | ret = h->ae_algo->ops->set_mtu(h, new_mtu); |
6a2953dd | 1580 | if (ret) |
a8e8b7ff S |
1581 | netdev_err(netdev, "failed to change MTU in hardware %d\n", |
1582 | ret); | |
6a2953dd YL |
1583 | else |
1584 | netdev->mtu = new_mtu; | |
fe6362f9 | 1585 | |
a8e8b7ff S |
1586 | return ret; |
1587 | } | |
1588 | ||
f8fa222c L |
1589 | static bool hns3_get_tx_timeo_queue_info(struct net_device *ndev) |
1590 | { | |
1591 | struct hns3_nic_priv *priv = netdev_priv(ndev); | |
1592 | struct hns3_enet_ring *tx_ring = NULL; | |
1593 | int timeout_queue = 0; | |
1594 | int hw_head, hw_tail; | |
1595 | int i; | |
1596 | ||
1597 | /* Find the stopped queue the same way the stack does */ | |
1598 | for (i = 0; i < ndev->real_num_tx_queues; i++) { | |
1599 | struct netdev_queue *q; | |
1600 | unsigned long trans_start; | |
1601 | ||
1602 | q = netdev_get_tx_queue(ndev, i); | |
1603 | trans_start = q->trans_start; | |
1604 | if (netif_xmit_stopped(q) && | |
1605 | time_after(jiffies, | |
1606 | (trans_start + ndev->watchdog_timeo))) { | |
1607 | timeout_queue = i; | |
724d05cc YL |
1608 | netdev_info(ndev, "queue state: 0x%lx, delta msecs: %u\n", |
1609 | q->state, | |
1610 | jiffies_to_msecs(jiffies - trans_start)); | |
f8fa222c L |
1611 | break; |
1612 | } | |
1613 | } | |
1614 | ||
1615 | if (i == ndev->num_tx_queues) { | |
1616 | netdev_info(ndev, | |
1617 | "no netdev TX timeout queue found, timeout count: %llu\n", | |
1618 | priv->tx_timeout_count); | |
1619 | return false; | |
1620 | } | |
1621 | ||
1622 | tx_ring = priv->ring_data[timeout_queue].ring; | |
1623 | ||
1624 | hw_head = readl_relaxed(tx_ring->tqp->io_base + | |
1625 | HNS3_RING_TX_RING_HEAD_REG); | |
1626 | hw_tail = readl_relaxed(tx_ring->tqp->io_base + | |
1627 | HNS3_RING_TX_RING_TAIL_REG); | |
1628 | netdev_info(ndev, | |
1629 | "tx_timeout count: %llu, queue id: %d, SW_NTU: 0x%x, SW_NTC: 0x%x, HW_HEAD: 0x%x, HW_TAIL: 0x%x, INT: 0x%x\n", | |
1630 | priv->tx_timeout_count, | |
1631 | timeout_queue, | |
1632 | tx_ring->next_to_use, | |
1633 | tx_ring->next_to_clean, | |
1634 | hw_head, | |
1635 | hw_tail, | |
1636 | readl(tx_ring->tqp_vector->mask_addr)); | |
1637 | ||
1638 | return true; | |
1639 | } | |
1640 | ||
1641 | static void hns3_nic_net_timeout(struct net_device *ndev) | |
1642 | { | |
1643 | struct hns3_nic_priv *priv = netdev_priv(ndev); | |
f8fa222c L |
1644 | struct hnae3_handle *h = priv->ae_handle; |
1645 | ||
1646 | if (!hns3_get_tx_timeo_queue_info(ndev)) | |
1647 | return; | |
1648 | ||
1649 | priv->tx_timeout_count++; | |
1650 | ||
1a2f7bf2 HT |
1651 | /* request the reset, and let the hclge to determine |
1652 | * which reset level should be done | |
1653 | */ | |
f8fa222c | 1654 | if (h->ae_algo->ops->reset_event) |
538d8ba0 | 1655 | h->ae_algo->ops->reset_event(h->pdev, h); |
f8fa222c L |
1656 | } |
1657 | ||
76ad4f0e S |
1658 | static const struct net_device_ops hns3_nic_netdev_ops = { |
1659 | .ndo_open = hns3_nic_net_open, | |
1660 | .ndo_stop = hns3_nic_net_stop, | |
1661 | .ndo_start_xmit = hns3_nic_net_xmit, | |
f8fa222c | 1662 | .ndo_tx_timeout = hns3_nic_net_timeout, |
76ad4f0e | 1663 | .ndo_set_mac_address = hns3_nic_net_set_mac_address, |
a185d723 | 1664 | .ndo_do_ioctl = hns3_nic_do_ioctl, |
a8e8b7ff | 1665 | .ndo_change_mtu = hns3_nic_change_mtu, |
76ad4f0e S |
1666 | .ndo_set_features = hns3_nic_set_features, |
1667 | .ndo_get_stats64 = hns3_nic_get_stats64, | |
1668 | .ndo_setup_tc = hns3_nic_setup_tc, | |
1669 | .ndo_set_rx_mode = hns3_nic_set_rx_mode, | |
76ad4f0e S |
1670 | .ndo_vlan_rx_add_vid = hns3_vlan_rx_add_vid, |
1671 | .ndo_vlan_rx_kill_vid = hns3_vlan_rx_kill_vid, | |
1672 | .ndo_set_vf_vlan = hns3_ndo_set_vf_vlan, | |
1673 | }; | |
1674 | ||
bc59f827 FL |
1675 | static bool hns3_is_phys_func(struct pci_dev *pdev) |
1676 | { | |
1677 | u32 dev_id = pdev->device; | |
1678 | ||
1679 | switch (dev_id) { | |
1680 | case HNAE3_DEV_ID_GE: | |
1681 | case HNAE3_DEV_ID_25GE: | |
1682 | case HNAE3_DEV_ID_25GE_RDMA: | |
1683 | case HNAE3_DEV_ID_25GE_RDMA_MACSEC: | |
1684 | case HNAE3_DEV_ID_50GE_RDMA: | |
1685 | case HNAE3_DEV_ID_50GE_RDMA_MACSEC: | |
1686 | case HNAE3_DEV_ID_100G_RDMA_MACSEC: | |
1687 | return true; | |
1688 | case HNAE3_DEV_ID_100G_VF: | |
1689 | case HNAE3_DEV_ID_100G_RDMA_DCB_PFC_VF: | |
1690 | return false; | |
1691 | default: | |
1692 | dev_warn(&pdev->dev, "un-recognized pci device-id %d", | |
1693 | dev_id); | |
1694 | } | |
1695 | ||
1696 | return false; | |
1697 | } | |
1698 | ||
bc59f827 FL |
1699 | static void hns3_disable_sriov(struct pci_dev *pdev) |
1700 | { | |
1701 | /* If our VFs are assigned we cannot shut down SR-IOV | |
1702 | * without causing issues, so just leave the hardware | |
1703 | * available but disabled | |
1704 | */ | |
1705 | if (pci_vfs_assigned(pdev)) { | |
1706 | dev_warn(&pdev->dev, | |
1707 | "disabling driver while VFs are assigned\n"); | |
1708 | return; | |
1709 | } | |
1710 | ||
1711 | pci_disable_sriov(pdev); | |
1712 | } | |
1713 | ||
10a954bc JS |
1714 | static void hns3_get_dev_capability(struct pci_dev *pdev, |
1715 | struct hnae3_ae_dev *ae_dev) | |
1716 | { | |
73f88b00 | 1717 | if (pdev->revision >= 0x21) { |
10a954bc | 1718 | hnae3_set_bit(ae_dev->flag, HNAE3_DEV_SUPPORT_FD_B, 1); |
73f88b00 PL |
1719 | hnae3_set_bit(ae_dev->flag, HNAE3_DEV_SUPPORT_GRO_B, 1); |
1720 | } | |
10a954bc JS |
1721 | } |
1722 | ||
76ad4f0e S |
1723 | /* hns3_probe - Device initialization routine |
1724 | * @pdev: PCI device information struct | |
1725 | * @ent: entry in hns3_pci_tbl | |
1726 | * | |
1727 | * hns3_probe initializes a PF identified by a pci_dev structure. | |
1728 | * The OS initialization, configuring of the PF private structure, | |
1729 | * and a hardware reset occur. | |
1730 | * | |
1731 | * Returns 0 on success, negative on failure | |
1732 | */ | |
1733 | static int hns3_probe(struct pci_dev *pdev, const struct pci_device_id *ent) | |
1734 | { | |
1735 | struct hnae3_ae_dev *ae_dev; | |
1736 | int ret; | |
1737 | ||
1738 | ae_dev = devm_kzalloc(&pdev->dev, sizeof(*ae_dev), | |
1739 | GFP_KERNEL); | |
1740 | if (!ae_dev) { | |
1741 | ret = -ENOMEM; | |
1742 | return ret; | |
1743 | } | |
1744 | ||
1745 | ae_dev->pdev = pdev; | |
e92a0843 | 1746 | ae_dev->flag = ent->driver_data; |
76ad4f0e | 1747 | ae_dev->dev_type = HNAE3_DEV_KNIC; |
7ce98982 | 1748 | ae_dev->reset_type = HNAE3_NONE_RESET; |
10a954bc | 1749 | hns3_get_dev_capability(pdev, ae_dev); |
76ad4f0e S |
1750 | pci_set_drvdata(pdev, ae_dev); |
1751 | ||
17901db4 HT |
1752 | ret = hnae3_register_ae_dev(ae_dev); |
1753 | if (ret) { | |
1754 | devm_kfree(&pdev->dev, ae_dev); | |
1755 | pci_set_drvdata(pdev, NULL); | |
1756 | } | |
bc59f827 | 1757 | |
17901db4 | 1758 | return ret; |
76ad4f0e S |
1759 | } |
1760 | ||
1761 | /* hns3_remove - Device removal routine | |
1762 | * @pdev: PCI device information struct | |
1763 | */ | |
1764 | static void hns3_remove(struct pci_dev *pdev) | |
1765 | { | |
1766 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1767 | ||
bc59f827 FL |
1768 | if (hns3_is_phys_func(pdev) && IS_ENABLED(CONFIG_PCI_IOV)) |
1769 | hns3_disable_sriov(pdev); | |
1770 | ||
76ad4f0e | 1771 | hnae3_unregister_ae_dev(ae_dev); |
142e1137 | 1772 | pci_set_drvdata(pdev, NULL); |
76ad4f0e S |
1773 | } |
1774 | ||
cfeff578 PL |
1775 | /** |
1776 | * hns3_pci_sriov_configure | |
1777 | * @pdev: pointer to a pci_dev structure | |
1778 | * @num_vfs: number of VFs to allocate | |
1779 | * | |
1780 | * Enable or change the number of VFs. Called when the user updates the number | |
1781 | * of VFs in sysfs. | |
1782 | **/ | |
baff3ed7 | 1783 | static int hns3_pci_sriov_configure(struct pci_dev *pdev, int num_vfs) |
cfeff578 PL |
1784 | { |
1785 | int ret; | |
1786 | ||
1787 | if (!(hns3_is_phys_func(pdev) && IS_ENABLED(CONFIG_PCI_IOV))) { | |
1788 | dev_warn(&pdev->dev, "Can not config SRIOV\n"); | |
1789 | return -EINVAL; | |
1790 | } | |
1791 | ||
1792 | if (num_vfs) { | |
1793 | ret = pci_enable_sriov(pdev, num_vfs); | |
1794 | if (ret) | |
1795 | dev_err(&pdev->dev, "SRIOV enable failed %d\n", ret); | |
baff3ed7 SM |
1796 | else |
1797 | return num_vfs; | |
cfeff578 PL |
1798 | } else if (!pci_vfs_assigned(pdev)) { |
1799 | pci_disable_sriov(pdev); | |
1800 | } else { | |
1801 | dev_warn(&pdev->dev, | |
1802 | "Unable to free VFs because some are assigned to VMs.\n"); | |
1803 | } | |
1804 | ||
1805 | return 0; | |
1806 | } | |
1807 | ||
4f043c3e YL |
1808 | static void hns3_shutdown(struct pci_dev *pdev) |
1809 | { | |
1810 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1811 | ||
1812 | hnae3_unregister_ae_dev(ae_dev); | |
1813 | devm_kfree(&pdev->dev, ae_dev); | |
1814 | pci_set_drvdata(pdev, NULL); | |
1815 | ||
1816 | if (system_state == SYSTEM_POWER_OFF) | |
1817 | pci_set_power_state(pdev, PCI_D3hot); | |
1818 | } | |
1819 | ||
00bb612a SJ |
1820 | static pci_ers_result_t hns3_error_detected(struct pci_dev *pdev, |
1821 | pci_channel_state_t state) | |
1822 | { | |
1823 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1824 | pci_ers_result_t ret; | |
1825 | ||
1826 | dev_info(&pdev->dev, "PCI error detected, state(=%d)!!\n", state); | |
1827 | ||
1828 | if (state == pci_channel_io_perm_failure) | |
1829 | return PCI_ERS_RESULT_DISCONNECT; | |
1830 | ||
1831 | if (!ae_dev) { | |
1832 | dev_err(&pdev->dev, | |
1833 | "Can't recover - error happened during device init\n"); | |
1834 | return PCI_ERS_RESULT_NONE; | |
1835 | } | |
1836 | ||
af72a21f SJ |
1837 | if (ae_dev->ops->handle_hw_ras_error) |
1838 | ret = ae_dev->ops->handle_hw_ras_error(ae_dev); | |
00bb612a SJ |
1839 | else |
1840 | return PCI_ERS_RESULT_NONE; | |
1841 | ||
1842 | return ret; | |
1843 | } | |
1844 | ||
538d8ba0 SJ |
1845 | static pci_ers_result_t hns3_slot_reset(struct pci_dev *pdev) |
1846 | { | |
1847 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1848 | struct device *dev = &pdev->dev; | |
1849 | ||
1850 | dev_info(dev, "requesting reset due to PCI error\n"); | |
1851 | ||
1852 | /* request the reset */ | |
1853 | if (ae_dev->ops->reset_event) { | |
1854 | ae_dev->ops->reset_event(pdev, NULL); | |
1855 | return PCI_ERS_RESULT_RECOVERED; | |
1856 | } | |
1857 | ||
1858 | return PCI_ERS_RESULT_DISCONNECT; | |
1859 | } | |
1860 | ||
26977990 HT |
1861 | static void hns3_reset_prepare(struct pci_dev *pdev) |
1862 | { | |
1863 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1864 | ||
1865 | dev_info(&pdev->dev, "hns3 flr prepare\n"); | |
1866 | if (ae_dev && ae_dev->ops && ae_dev->ops->flr_prepare) | |
1867 | ae_dev->ops->flr_prepare(ae_dev); | |
1868 | } | |
1869 | ||
1870 | static void hns3_reset_done(struct pci_dev *pdev) | |
1871 | { | |
1872 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(pdev); | |
1873 | ||
1874 | dev_info(&pdev->dev, "hns3 flr done\n"); | |
1875 | if (ae_dev && ae_dev->ops && ae_dev->ops->flr_done) | |
1876 | ae_dev->ops->flr_done(ae_dev); | |
1877 | } | |
1878 | ||
00bb612a SJ |
1879 | static const struct pci_error_handlers hns3_err_handler = { |
1880 | .error_detected = hns3_error_detected, | |
538d8ba0 | 1881 | .slot_reset = hns3_slot_reset, |
26977990 HT |
1882 | .reset_prepare = hns3_reset_prepare, |
1883 | .reset_done = hns3_reset_done, | |
00bb612a SJ |
1884 | }; |
1885 | ||
76ad4f0e S |
1886 | static struct pci_driver hns3_driver = { |
1887 | .name = hns3_driver_name, | |
1888 | .id_table = hns3_pci_tbl, | |
1889 | .probe = hns3_probe, | |
1890 | .remove = hns3_remove, | |
4f043c3e | 1891 | .shutdown = hns3_shutdown, |
cfeff578 | 1892 | .sriov_configure = hns3_pci_sriov_configure, |
00bb612a | 1893 | .err_handler = &hns3_err_handler, |
76ad4f0e S |
1894 | }; |
1895 | ||
1896 | /* set default feature to hns3 */ | |
1897 | static void hns3_set_default_feature(struct net_device *netdev) | |
1898 | { | |
a4c378bb PL |
1899 | struct hnae3_handle *h = hns3_get_handle(netdev); |
1900 | struct pci_dev *pdev = h->pdev; | |
1901 | ||
76ad4f0e S |
1902 | netdev->priv_flags |= IFF_UNICAST_FLT; |
1903 | ||
1904 | netdev->hw_enc_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
1905 | NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO | | |
1906 | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE | | |
1907 | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL | | |
0361a8bc | 1908 | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC; |
76ad4f0e S |
1909 | |
1910 | netdev->hw_enc_features |= NETIF_F_TSO_MANGLEID; | |
1911 | ||
1912 | netdev->gso_partial_features |= NETIF_F_GSO_GRE_CSUM; | |
1913 | ||
1914 | netdev->features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
1915 | NETIF_F_HW_VLAN_CTAG_FILTER | | |
5f9a7732 | 1916 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | |
76ad4f0e S |
1917 | NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO | |
1918 | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE | | |
1919 | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL | | |
0361a8bc | 1920 | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC; |
76ad4f0e S |
1921 | |
1922 | netdev->vlan_features |= | |
1923 | NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM | | |
1924 | NETIF_F_SG | NETIF_F_GSO | NETIF_F_GRO | | |
1925 | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE | | |
1926 | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL | | |
0361a8bc | 1927 | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC; |
76ad4f0e S |
1928 | |
1929 | netdev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | | |
3849d494 | 1930 | NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX | |
76ad4f0e S |
1931 | NETIF_F_RXCSUM | NETIF_F_SG | NETIF_F_GSO | |
1932 | NETIF_F_GRO | NETIF_F_TSO | NETIF_F_TSO6 | NETIF_F_GSO_GRE | | |
1933 | NETIF_F_GSO_GRE_CSUM | NETIF_F_GSO_UDP_TUNNEL | | |
0361a8bc | 1934 | NETIF_F_GSO_UDP_TUNNEL_CSUM | NETIF_F_SCTP_CRC; |
a4c378bb | 1935 | |
d1f04a80 | 1936 | if (pdev->revision >= 0x21) { |
a4c378bb | 1937 | netdev->hw_features |= NETIF_F_HW_VLAN_CTAG_FILTER; |
d1f04a80 JS |
1938 | |
1939 | if (!(h->flags & HNAE3_SUPPORT_VF)) { | |
1940 | netdev->hw_features |= NETIF_F_NTUPLE; | |
1941 | netdev->features |= NETIF_F_NTUPLE; | |
1942 | } | |
1943 | } | |
76ad4f0e S |
1944 | } |
1945 | ||
1946 | static int hns3_alloc_buffer(struct hns3_enet_ring *ring, | |
1947 | struct hns3_desc_cb *cb) | |
1948 | { | |
ccc23ef3 | 1949 | unsigned int order = hnae3_page_order(ring); |
76ad4f0e S |
1950 | struct page *p; |
1951 | ||
1952 | p = dev_alloc_pages(order); | |
1953 | if (!p) | |
1954 | return -ENOMEM; | |
1955 | ||
1956 | cb->priv = p; | |
1957 | cb->page_offset = 0; | |
1958 | cb->reuse_flag = 0; | |
1959 | cb->buf = page_address(p); | |
ccc23ef3 | 1960 | cb->length = hnae3_page_size(ring); |
76ad4f0e S |
1961 | cb->type = DESC_TYPE_PAGE; |
1962 | ||
76ad4f0e S |
1963 | return 0; |
1964 | } | |
1965 | ||
1966 | static void hns3_free_buffer(struct hns3_enet_ring *ring, | |
1967 | struct hns3_desc_cb *cb) | |
1968 | { | |
1969 | if (cb->type == DESC_TYPE_SKB) | |
1970 | dev_kfree_skb_any((struct sk_buff *)cb->priv); | |
1971 | else if (!HNAE3_IS_TX_RING(ring)) | |
1972 | put_page((struct page *)cb->priv); | |
1973 | memset(cb, 0, sizeof(*cb)); | |
1974 | } | |
1975 | ||
1976 | static int hns3_map_buffer(struct hns3_enet_ring *ring, struct hns3_desc_cb *cb) | |
1977 | { | |
1978 | cb->dma = dma_map_page(ring_to_dev(ring), cb->priv, 0, | |
1979 | cb->length, ring_to_dma_dir(ring)); | |
1980 | ||
39bbc873 | 1981 | if (unlikely(dma_mapping_error(ring_to_dev(ring), cb->dma))) |
76ad4f0e S |
1982 | return -EIO; |
1983 | ||
1984 | return 0; | |
1985 | } | |
1986 | ||
1987 | static void hns3_unmap_buffer(struct hns3_enet_ring *ring, | |
1988 | struct hns3_desc_cb *cb) | |
1989 | { | |
1990 | if (cb->type == DESC_TYPE_SKB) | |
1991 | dma_unmap_single(ring_to_dev(ring), cb->dma, cb->length, | |
1992 | ring_to_dma_dir(ring)); | |
6a3bff0d | 1993 | else if (cb->length) |
76ad4f0e S |
1994 | dma_unmap_page(ring_to_dev(ring), cb->dma, cb->length, |
1995 | ring_to_dma_dir(ring)); | |
1996 | } | |
1997 | ||
1998 | static void hns3_buffer_detach(struct hns3_enet_ring *ring, int i) | |
1999 | { | |
2000 | hns3_unmap_buffer(ring, &ring->desc_cb[i]); | |
2001 | ring->desc[i].addr = 0; | |
2002 | } | |
2003 | ||
2004 | static void hns3_free_buffer_detach(struct hns3_enet_ring *ring, int i) | |
2005 | { | |
2006 | struct hns3_desc_cb *cb = &ring->desc_cb[i]; | |
2007 | ||
2008 | if (!ring->desc_cb[i].dma) | |
2009 | return; | |
2010 | ||
2011 | hns3_buffer_detach(ring, i); | |
2012 | hns3_free_buffer(ring, cb); | |
2013 | } | |
2014 | ||
2015 | static void hns3_free_buffers(struct hns3_enet_ring *ring) | |
2016 | { | |
2017 | int i; | |
2018 | ||
2019 | for (i = 0; i < ring->desc_num; i++) | |
2020 | hns3_free_buffer_detach(ring, i); | |
2021 | } | |
2022 | ||
2023 | /* free desc along with its attached buffer */ | |
2024 | static void hns3_free_desc(struct hns3_enet_ring *ring) | |
2025 | { | |
d61c1a80 HT |
2026 | int size = ring->desc_num * sizeof(ring->desc[0]); |
2027 | ||
76ad4f0e S |
2028 | hns3_free_buffers(ring); |
2029 | ||
d61c1a80 HT |
2030 | if (ring->desc) { |
2031 | dma_free_coherent(ring_to_dev(ring), size, | |
2032 | ring->desc, ring->desc_dma_addr); | |
2033 | ring->desc = NULL; | |
2034 | } | |
76ad4f0e S |
2035 | } |
2036 | ||
2037 | static int hns3_alloc_desc(struct hns3_enet_ring *ring) | |
2038 | { | |
2039 | int size = ring->desc_num * sizeof(ring->desc[0]); | |
2040 | ||
d61c1a80 HT |
2041 | ring->desc = dma_zalloc_coherent(ring_to_dev(ring), size, |
2042 | &ring->desc_dma_addr, | |
2043 | GFP_KERNEL); | |
76ad4f0e S |
2044 | if (!ring->desc) |
2045 | return -ENOMEM; | |
2046 | ||
76ad4f0e S |
2047 | return 0; |
2048 | } | |
2049 | ||
2050 | static int hns3_reserve_buffer_map(struct hns3_enet_ring *ring, | |
2051 | struct hns3_desc_cb *cb) | |
2052 | { | |
2053 | int ret; | |
2054 | ||
2055 | ret = hns3_alloc_buffer(ring, cb); | |
2056 | if (ret) | |
2057 | goto out; | |
2058 | ||
2059 | ret = hns3_map_buffer(ring, cb); | |
2060 | if (ret) | |
2061 | goto out_with_buf; | |
2062 | ||
2063 | return 0; | |
2064 | ||
2065 | out_with_buf: | |
564883bb | 2066 | hns3_free_buffer(ring, cb); |
76ad4f0e S |
2067 | out: |
2068 | return ret; | |
2069 | } | |
2070 | ||
2071 | static int hns3_alloc_buffer_attach(struct hns3_enet_ring *ring, int i) | |
2072 | { | |
2073 | int ret = hns3_reserve_buffer_map(ring, &ring->desc_cb[i]); | |
2074 | ||
2075 | if (ret) | |
2076 | return ret; | |
2077 | ||
2078 | ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma); | |
2079 | ||
2080 | return 0; | |
2081 | } | |
2082 | ||
2083 | /* Allocate memory for raw pkg, and map with dma */ | |
2084 | static int hns3_alloc_ring_buffers(struct hns3_enet_ring *ring) | |
2085 | { | |
2086 | int i, j, ret; | |
2087 | ||
2088 | for (i = 0; i < ring->desc_num; i++) { | |
2089 | ret = hns3_alloc_buffer_attach(ring, i); | |
2090 | if (ret) | |
2091 | goto out_buffer_fail; | |
2092 | } | |
2093 | ||
2094 | return 0; | |
2095 | ||
2096 | out_buffer_fail: | |
2097 | for (j = i - 1; j >= 0; j--) | |
2098 | hns3_free_buffer_detach(ring, j); | |
2099 | return ret; | |
2100 | } | |
2101 | ||
2102 | /* detach a in-used buffer and replace with a reserved one */ | |
2103 | static void hns3_replace_buffer(struct hns3_enet_ring *ring, int i, | |
2104 | struct hns3_desc_cb *res_cb) | |
2105 | { | |
b9077428 | 2106 | hns3_unmap_buffer(ring, &ring->desc_cb[i]); |
76ad4f0e S |
2107 | ring->desc_cb[i] = *res_cb; |
2108 | ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma); | |
4169a686 | 2109 | ring->desc[i].rx.bd_base_info = 0; |
76ad4f0e S |
2110 | } |
2111 | ||
2112 | static void hns3_reuse_buffer(struct hns3_enet_ring *ring, int i) | |
2113 | { | |
2114 | ring->desc_cb[i].reuse_flag = 0; | |
2115 | ring->desc[i].addr = cpu_to_le64(ring->desc_cb[i].dma | |
2116 | + ring->desc_cb[i].page_offset); | |
4169a686 | 2117 | ring->desc[i].rx.bd_base_info = 0; |
76ad4f0e S |
2118 | } |
2119 | ||
1f9c1dcb YL |
2120 | static void hns3_nic_reclaim_desc(struct hns3_enet_ring *ring, int head, |
2121 | int *bytes, int *pkts) | |
76ad4f0e | 2122 | { |
a41def26 YL |
2123 | int ntc = ring->next_to_clean; |
2124 | struct hns3_desc_cb *desc_cb; | |
76ad4f0e | 2125 | |
1f9c1dcb YL |
2126 | while (head != ntc) { |
2127 | desc_cb = &ring->desc_cb[ntc]; | |
2128 | (*pkts) += (desc_cb->type == DESC_TYPE_SKB); | |
2129 | (*bytes) += desc_cb->length; | |
2130 | /* desc_cb will be cleaned, after hnae3_free_buffer_detach */ | |
2131 | hns3_free_buffer_detach(ring, ntc); | |
76ad4f0e | 2132 | |
1f9c1dcb YL |
2133 | if (++ntc == ring->desc_num) |
2134 | ntc = 0; | |
2135 | ||
2136 | /* Issue prefetch for next Tx descriptor */ | |
2137 | prefetch(&ring->desc_cb[ntc]); | |
2138 | } | |
a41def26 YL |
2139 | |
2140 | /* This smp_store_release() pairs with smp_load_acquire() in | |
2141 | * ring_space called by hns3_nic_net_xmit. | |
2142 | */ | |
2143 | smp_store_release(&ring->next_to_clean, ntc); | |
76ad4f0e S |
2144 | } |
2145 | ||
2146 | static int is_valid_clean_head(struct hns3_enet_ring *ring, int h) | |
2147 | { | |
2148 | int u = ring->next_to_use; | |
2149 | int c = ring->next_to_clean; | |
2150 | ||
2151 | if (unlikely(h > ring->desc_num)) | |
2152 | return 0; | |
2153 | ||
2154 | return u > c ? (h > c && h <= u) : (h > c || h <= u); | |
2155 | } | |
2156 | ||
6a38a95f | 2157 | void hns3_clean_tx_ring(struct hns3_enet_ring *ring) |
76ad4f0e S |
2158 | { |
2159 | struct net_device *netdev = ring->tqp->handle->kinfo.netdev; | |
c3e4287e | 2160 | struct hns3_nic_priv *priv = netdev_priv(netdev); |
76ad4f0e S |
2161 | struct netdev_queue *dev_queue; |
2162 | int bytes, pkts; | |
2163 | int head; | |
2164 | ||
2165 | head = readl_relaxed(ring->tqp->io_base + HNS3_RING_TX_RING_HEAD_REG); | |
2166 | rmb(); /* Make sure head is ready before touch any data */ | |
2167 | ||
2168 | if (is_ring_empty(ring) || head == ring->next_to_clean) | |
6a38a95f | 2169 | return; /* no data to poll */ |
76ad4f0e | 2170 | |
2ea8667b | 2171 | if (unlikely(!is_valid_clean_head(ring, head))) { |
76ad4f0e S |
2172 | netdev_err(netdev, "wrong head (%d, %d-%d)\n", head, |
2173 | ring->next_to_use, ring->next_to_clean); | |
2174 | ||
2175 | u64_stats_update_begin(&ring->syncp); | |
2176 | ring->stats.io_err_cnt++; | |
2177 | u64_stats_update_end(&ring->syncp); | |
6a38a95f | 2178 | return; |
76ad4f0e S |
2179 | } |
2180 | ||
2181 | bytes = 0; | |
2182 | pkts = 0; | |
1f9c1dcb | 2183 | hns3_nic_reclaim_desc(ring, head, &bytes, &pkts); |
76ad4f0e S |
2184 | |
2185 | ring->tqp_vector->tx_group.total_bytes += bytes; | |
2186 | ring->tqp_vector->tx_group.total_packets += pkts; | |
2187 | ||
2188 | u64_stats_update_begin(&ring->syncp); | |
2189 | ring->stats.tx_bytes += bytes; | |
2190 | ring->stats.tx_pkts += pkts; | |
2191 | u64_stats_update_end(&ring->syncp); | |
2192 | ||
2193 | dev_queue = netdev_get_tx_queue(netdev, ring->tqp->tqp_index); | |
2194 | netdev_tx_completed_queue(dev_queue, pkts, bytes); | |
2195 | ||
2196 | if (unlikely(pkts && netif_carrier_ok(netdev) && | |
2197 | (ring_space(ring) > HNS3_MAX_BD_PER_PKT))) { | |
2198 | /* Make sure that anybody stopping the queue after this | |
2199 | * sees the new next_to_clean. | |
2200 | */ | |
2201 | smp_mb(); | |
c3e4287e JS |
2202 | if (netif_tx_queue_stopped(dev_queue) && |
2203 | !test_bit(HNS3_NIC_STATE_DOWN, &priv->state)) { | |
76ad4f0e S |
2204 | netif_tx_wake_queue(dev_queue); |
2205 | ring->stats.restart_queue++; | |
2206 | } | |
2207 | } | |
76ad4f0e S |
2208 | } |
2209 | ||
2210 | static int hns3_desc_unused(struct hns3_enet_ring *ring) | |
2211 | { | |
2212 | int ntc = ring->next_to_clean; | |
2213 | int ntu = ring->next_to_use; | |
2214 | ||
2215 | return ((ntc >= ntu) ? 0 : ring->desc_num) + ntc - ntu; | |
2216 | } | |
2217 | ||
2218 | static void | |
2219 | hns3_nic_alloc_rx_buffers(struct hns3_enet_ring *ring, int cleand_count) | |
2220 | { | |
2221 | struct hns3_desc_cb *desc_cb; | |
2222 | struct hns3_desc_cb res_cbs; | |
2223 | int i, ret; | |
2224 | ||
2225 | for (i = 0; i < cleand_count; i++) { | |
2226 | desc_cb = &ring->desc_cb[ring->next_to_use]; | |
2227 | if (desc_cb->reuse_flag) { | |
2228 | u64_stats_update_begin(&ring->syncp); | |
2229 | ring->stats.reuse_pg_cnt++; | |
2230 | u64_stats_update_end(&ring->syncp); | |
2231 | ||
2232 | hns3_reuse_buffer(ring, ring->next_to_use); | |
2233 | } else { | |
2234 | ret = hns3_reserve_buffer_map(ring, &res_cbs); | |
2235 | if (ret) { | |
2236 | u64_stats_update_begin(&ring->syncp); | |
2237 | ring->stats.sw_err_cnt++; | |
2238 | u64_stats_update_end(&ring->syncp); | |
2239 | ||
2240 | netdev_err(ring->tqp->handle->kinfo.netdev, | |
2241 | "hnae reserve buffer map failed.\n"); | |
2242 | break; | |
2243 | } | |
2244 | hns3_replace_buffer(ring, ring->next_to_use, &res_cbs); | |
2245 | } | |
2246 | ||
2247 | ring_ptr_move_fw(ring, next_to_use); | |
2248 | } | |
2249 | ||
2250 | wmb(); /* Make all data has been write before submit */ | |
2251 | writel_relaxed(i, ring->tqp->io_base + HNS3_RING_RX_RING_HEAD_REG); | |
2252 | } | |
2253 | ||
76ad4f0e S |
2254 | static void hns3_nic_reuse_page(struct sk_buff *skb, int i, |
2255 | struct hns3_enet_ring *ring, int pull_len, | |
2256 | struct hns3_desc_cb *desc_cb) | |
2257 | { | |
2258 | struct hns3_desc *desc; | |
e56a15b7 HT |
2259 | u32 truesize; |
2260 | int size; | |
76ad4f0e S |
2261 | int last_offset; |
2262 | bool twobufs; | |
2263 | ||
2264 | twobufs = ((PAGE_SIZE < 8192) && | |
ccc23ef3 | 2265 | hnae3_buf_size(ring) == HNS3_BUFFER_SIZE_2048); |
76ad4f0e S |
2266 | |
2267 | desc = &ring->desc[ring->next_to_clean]; | |
2268 | size = le16_to_cpu(desc->rx.size); | |
2269 | ||
ccc23ef3 | 2270 | truesize = hnae3_buf_size(ring); |
885a882a PL |
2271 | |
2272 | if (!twobufs) | |
ccc23ef3 | 2273 | last_offset = hnae3_page_size(ring) - hnae3_buf_size(ring); |
76ad4f0e S |
2274 | |
2275 | skb_add_rx_frag(skb, i, desc_cb->priv, desc_cb->page_offset + pull_len, | |
885a882a | 2276 | size - pull_len, truesize); |
76ad4f0e S |
2277 | |
2278 | /* Avoid re-using remote pages,flag default unreuse */ | |
2279 | if (unlikely(page_to_nid(desc_cb->priv) != numa_node_id())) | |
2280 | return; | |
2281 | ||
2282 | if (twobufs) { | |
2283 | /* If we are only owner of page we can reuse it */ | |
2284 | if (likely(page_count(desc_cb->priv) == 1)) { | |
2285 | /* Flip page offset to other buffer */ | |
2286 | desc_cb->page_offset ^= truesize; | |
2287 | ||
2288 | desc_cb->reuse_flag = 1; | |
2289 | /* bump ref count on page before it is given*/ | |
2290 | get_page(desc_cb->priv); | |
2291 | } | |
2292 | return; | |
2293 | } | |
2294 | ||
2295 | /* Move offset up to the next cache line */ | |
2296 | desc_cb->page_offset += truesize; | |
2297 | ||
2298 | if (desc_cb->page_offset <= last_offset) { | |
2299 | desc_cb->reuse_flag = 1; | |
2300 | /* Bump ref count on page before it is given*/ | |
2301 | get_page(desc_cb->priv); | |
2302 | } | |
2303 | } | |
2304 | ||
2305 | static void hns3_rx_checksum(struct hns3_enet_ring *ring, struct sk_buff *skb, | |
2306 | struct hns3_desc *desc) | |
2307 | { | |
2308 | struct net_device *netdev = ring->tqp->handle->kinfo.netdev; | |
2309 | int l3_type, l4_type; | |
2310 | u32 bd_base_info; | |
2311 | int ol4_type; | |
2312 | u32 l234info; | |
2313 | ||
2314 | bd_base_info = le32_to_cpu(desc->rx.bd_base_info); | |
2315 | l234info = le32_to_cpu(desc->rx.l234_info); | |
2316 | ||
2317 | skb->ip_summed = CHECKSUM_NONE; | |
2318 | ||
2319 | skb_checksum_none_assert(skb); | |
2320 | ||
2321 | if (!(netdev->features & NETIF_F_RXCSUM)) | |
2322 | return; | |
2323 | ||
5337b725 PL |
2324 | /* We MUST enable hardware checksum before enabling hardware GRO */ |
2325 | if (skb_shinfo(skb)->gso_size) { | |
2326 | skb->ip_summed = CHECKSUM_UNNECESSARY; | |
2327 | return; | |
2328 | } | |
2329 | ||
76ad4f0e | 2330 | /* check if hardware has done checksum */ |
ccc23ef3 | 2331 | if (!hnae3_get_bit(bd_base_info, HNS3_RXD_L3L4P_B)) |
76ad4f0e S |
2332 | return; |
2333 | ||
ccc23ef3 PL |
2334 | if (unlikely(hnae3_get_bit(l234info, HNS3_RXD_L3E_B) || |
2335 | hnae3_get_bit(l234info, HNS3_RXD_L4E_B) || | |
2336 | hnae3_get_bit(l234info, HNS3_RXD_OL3E_B) || | |
2337 | hnae3_get_bit(l234info, HNS3_RXD_OL4E_B))) { | |
76ad4f0e S |
2338 | u64_stats_update_begin(&ring->syncp); |
2339 | ring->stats.l3l4_csum_err++; | |
2340 | u64_stats_update_end(&ring->syncp); | |
2341 | ||
2342 | return; | |
2343 | } | |
2344 | ||
ccc23ef3 PL |
2345 | l3_type = hnae3_get_field(l234info, HNS3_RXD_L3ID_M, |
2346 | HNS3_RXD_L3ID_S); | |
2347 | l4_type = hnae3_get_field(l234info, HNS3_RXD_L4ID_M, | |
2348 | HNS3_RXD_L4ID_S); | |
76ad4f0e | 2349 | |
ccc23ef3 PL |
2350 | ol4_type = hnae3_get_field(l234info, HNS3_RXD_OL4ID_M, |
2351 | HNS3_RXD_OL4ID_S); | |
76ad4f0e S |
2352 | switch (ol4_type) { |
2353 | case HNS3_OL4_TYPE_MAC_IN_UDP: | |
2354 | case HNS3_OL4_TYPE_NVGRE: | |
2355 | skb->csum_level = 1; | |
64061deb | 2356 | /* fall through */ |
76ad4f0e S |
2357 | case HNS3_OL4_TYPE_NO_TUN: |
2358 | /* Can checksum ipv4 or ipv6 + UDP/TCP/SCTP packets */ | |
ffa051fa PL |
2359 | if ((l3_type == HNS3_L3_TYPE_IPV4 || |
2360 | l3_type == HNS3_L3_TYPE_IPV6) && | |
2361 | (l4_type == HNS3_L4_TYPE_UDP || | |
2362 | l4_type == HNS3_L4_TYPE_TCP || | |
2363 | l4_type == HNS3_L4_TYPE_SCTP)) | |
76ad4f0e S |
2364 | skb->ip_summed = CHECKSUM_UNNECESSARY; |
2365 | break; | |
085920ba JS |
2366 | default: |
2367 | break; | |
76ad4f0e S |
2368 | } |
2369 | } | |
2370 | ||
d43e5aca YL |
2371 | static void hns3_rx_skb(struct hns3_enet_ring *ring, struct sk_buff *skb) |
2372 | { | |
4110bcf6 PL |
2373 | if (skb_has_frag_list(skb)) |
2374 | napi_gro_flush(&ring->tqp_vector->napi, false); | |
2375 | ||
d43e5aca YL |
2376 | napi_gro_receive(&ring->tqp_vector->napi, skb); |
2377 | } | |
2378 | ||
34456a7c JS |
2379 | static bool hns3_parse_vlan_tag(struct hns3_enet_ring *ring, |
2380 | struct hns3_desc *desc, u32 l234info, | |
2381 | u16 *vlan_tag) | |
1e8f8bd3 PL |
2382 | { |
2383 | struct pci_dev *pdev = ring->tqp->handle->pdev; | |
1e8f8bd3 PL |
2384 | |
2385 | if (pdev->revision == 0x20) { | |
34456a7c JS |
2386 | *vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag); |
2387 | if (!(*vlan_tag & VLAN_VID_MASK)) | |
2388 | *vlan_tag = le16_to_cpu(desc->rx.vlan_tag); | |
1e8f8bd3 | 2389 | |
34456a7c | 2390 | return (*vlan_tag != 0); |
1e8f8bd3 PL |
2391 | } |
2392 | ||
2393 | #define HNS3_STRP_OUTER_VLAN 0x1 | |
2394 | #define HNS3_STRP_INNER_VLAN 0x2 | |
2395 | ||
ccc23ef3 PL |
2396 | switch (hnae3_get_field(l234info, HNS3_RXD_STRP_TAGP_M, |
2397 | HNS3_RXD_STRP_TAGP_S)) { | |
1e8f8bd3 | 2398 | case HNS3_STRP_OUTER_VLAN: |
34456a7c JS |
2399 | *vlan_tag = le16_to_cpu(desc->rx.ot_vlan_tag); |
2400 | return true; | |
1e8f8bd3 | 2401 | case HNS3_STRP_INNER_VLAN: |
34456a7c JS |
2402 | *vlan_tag = le16_to_cpu(desc->rx.vlan_tag); |
2403 | return true; | |
1e8f8bd3 | 2404 | default: |
34456a7c | 2405 | return false; |
1e8f8bd3 | 2406 | } |
1e8f8bd3 PL |
2407 | } |
2408 | ||
72b50a78 PL |
2409 | static int hns3_alloc_skb(struct hns3_enet_ring *ring, int length, |
2410 | unsigned char *va) | |
2411 | { | |
2412 | #define HNS3_NEED_ADD_FRAG 1 | |
2413 | struct hns3_desc_cb *desc_cb = &ring->desc_cb[ring->next_to_clean]; | |
2414 | struct net_device *netdev = ring->tqp->handle->kinfo.netdev; | |
2415 | struct sk_buff *skb; | |
2416 | ||
2417 | ring->skb = napi_alloc_skb(&ring->tqp_vector->napi, HNS3_RX_HEAD_SIZE); | |
2418 | skb = ring->skb; | |
2419 | if (unlikely(!skb)) { | |
2420 | netdev_err(netdev, "alloc rx skb fail\n"); | |
2421 | ||
2422 | u64_stats_update_begin(&ring->syncp); | |
2423 | ring->stats.sw_err_cnt++; | |
2424 | u64_stats_update_end(&ring->syncp); | |
2425 | ||
2426 | return -ENOMEM; | |
2427 | } | |
2428 | ||
2429 | prefetchw(skb->data); | |
2430 | ||
2431 | ring->pending_buf = 1; | |
4110bcf6 PL |
2432 | ring->frag_num = 0; |
2433 | ring->tail_skb = NULL; | |
72b50a78 PL |
2434 | if (length <= HNS3_RX_HEAD_SIZE) { |
2435 | memcpy(__skb_put(skb, length), va, ALIGN(length, sizeof(long))); | |
2436 | ||
2437 | /* We can reuse buffer as-is, just make sure it is local */ | |
2438 | if (likely(page_to_nid(desc_cb->priv) == numa_node_id())) | |
2439 | desc_cb->reuse_flag = 1; | |
2440 | else /* This page cannot be reused so discard it */ | |
2441 | put_page(desc_cb->priv); | |
2442 | ||
2443 | ring_ptr_move_fw(ring, next_to_clean); | |
2444 | return 0; | |
2445 | } | |
2446 | u64_stats_update_begin(&ring->syncp); | |
2447 | ring->stats.seg_pkt_cnt++; | |
2448 | u64_stats_update_end(&ring->syncp); | |
2449 | ||
2450 | ring->pull_len = eth_get_headlen(va, HNS3_RX_HEAD_SIZE); | |
2451 | __skb_put(skb, ring->pull_len); | |
4110bcf6 | 2452 | hns3_nic_reuse_page(skb, ring->frag_num++, ring, ring->pull_len, |
72b50a78 PL |
2453 | desc_cb); |
2454 | ring_ptr_move_fw(ring, next_to_clean); | |
2455 | ||
2456 | return HNS3_NEED_ADD_FRAG; | |
2457 | } | |
2458 | ||
2459 | static int hns3_add_frag(struct hns3_enet_ring *ring, struct hns3_desc *desc, | |
2460 | struct sk_buff **out_skb, bool pending) | |
2461 | { | |
2462 | struct sk_buff *skb = *out_skb; | |
4110bcf6 PL |
2463 | struct sk_buff *head_skb = *out_skb; |
2464 | struct sk_buff *new_skb; | |
72b50a78 PL |
2465 | struct hns3_desc_cb *desc_cb; |
2466 | struct hns3_desc *pre_desc; | |
2467 | u32 bd_base_info; | |
2468 | int pre_bd; | |
2469 | ||
2470 | /* if there is pending bd, the SW param next_to_clean has moved | |
2471 | * to next and the next is NULL | |
2472 | */ | |
2473 | if (pending) { | |
2474 | pre_bd = (ring->next_to_clean - 1 + ring->desc_num) % | |
2475 | ring->desc_num; | |
2476 | pre_desc = &ring->desc[pre_bd]; | |
2477 | bd_base_info = le32_to_cpu(pre_desc->rx.bd_base_info); | |
2478 | } else { | |
2479 | bd_base_info = le32_to_cpu(desc->rx.bd_base_info); | |
2480 | } | |
2481 | ||
2482 | while (!hnae3_get_bit(bd_base_info, HNS3_RXD_FE_B)) { | |
2483 | desc = &ring->desc[ring->next_to_clean]; | |
2484 | desc_cb = &ring->desc_cb[ring->next_to_clean]; | |
2485 | bd_base_info = le32_to_cpu(desc->rx.bd_base_info); | |
2ed550c5 JS |
2486 | /* make sure HW write desc complete */ |
2487 | dma_rmb(); | |
72b50a78 PL |
2488 | if (!hnae3_get_bit(bd_base_info, HNS3_RXD_VLD_B)) |
2489 | return -ENXIO; | |
2490 | ||
4110bcf6 PL |
2491 | if (unlikely(ring->frag_num >= MAX_SKB_FRAGS)) { |
2492 | new_skb = napi_alloc_skb(&ring->tqp_vector->napi, | |
2493 | HNS3_RX_HEAD_SIZE); | |
2494 | if (unlikely(!new_skb)) { | |
2495 | netdev_err(ring->tqp->handle->kinfo.netdev, | |
2496 | "alloc rx skb frag fail\n"); | |
2497 | return -ENXIO; | |
2498 | } | |
2499 | ring->frag_num = 0; | |
2500 | ||
2501 | if (ring->tail_skb) { | |
2502 | ring->tail_skb->next = new_skb; | |
2503 | ring->tail_skb = new_skb; | |
2504 | } else { | |
2505 | skb_shinfo(skb)->frag_list = new_skb; | |
2506 | ring->tail_skb = new_skb; | |
2507 | } | |
2508 | } | |
2509 | ||
2510 | if (ring->tail_skb) { | |
2511 | head_skb->truesize += hnae3_buf_size(ring); | |
2512 | head_skb->data_len += le16_to_cpu(desc->rx.size); | |
2513 | head_skb->len += le16_to_cpu(desc->rx.size); | |
2514 | skb = ring->tail_skb; | |
2515 | } | |
2516 | ||
2517 | hns3_nic_reuse_page(skb, ring->frag_num++, ring, 0, desc_cb); | |
72b50a78 PL |
2518 | ring_ptr_move_fw(ring, next_to_clean); |
2519 | ring->pending_buf++; | |
2520 | } | |
2521 | ||
2522 | return 0; | |
2523 | } | |
2524 | ||
5337b725 PL |
2525 | static void hns3_set_gro_param(struct sk_buff *skb, u32 l234info, |
2526 | u32 bd_base_info) | |
2527 | { | |
2528 | u16 gro_count; | |
2529 | u32 l3_type; | |
2530 | ||
2531 | gro_count = hnae3_get_field(l234info, HNS3_RXD_GRO_COUNT_M, | |
2532 | HNS3_RXD_GRO_COUNT_S); | |
2533 | /* if there is no HW GRO, do not set gro params */ | |
2534 | if (!gro_count) | |
2535 | return; | |
2536 | ||
2537 | /* tcp_gro_complete() will copy NAPI_GRO_CB(skb)->count | |
2538 | * to skb_shinfo(skb)->gso_segs | |
2539 | */ | |
2540 | NAPI_GRO_CB(skb)->count = gro_count; | |
2541 | ||
2542 | l3_type = hnae3_get_field(l234info, HNS3_RXD_L3ID_M, | |
2543 | HNS3_RXD_L3ID_S); | |
2544 | if (l3_type == HNS3_L3_TYPE_IPV4) | |
2545 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV4; | |
2546 | else if (l3_type == HNS3_L3_TYPE_IPV6) | |
2547 | skb_shinfo(skb)->gso_type = SKB_GSO_TCPV6; | |
2548 | else | |
2549 | return; | |
2550 | ||
2551 | skb_shinfo(skb)->gso_size = hnae3_get_field(bd_base_info, | |
2552 | HNS3_RXD_GRO_SIZE_M, | |
2553 | HNS3_RXD_GRO_SIZE_S); | |
2554 | if (skb_shinfo(skb)->gso_size) | |
2555 | tcp_gro_complete(skb); | |
2556 | } | |
2557 | ||
8e4c877d PL |
2558 | static void hns3_set_rx_skb_rss_type(struct hns3_enet_ring *ring, |
2559 | struct sk_buff *skb) | |
2560 | { | |
8e4c877d PL |
2561 | struct hnae3_handle *handle = ring->tqp->handle; |
2562 | enum pkt_hash_types rss_type; | |
023a793f PL |
2563 | struct hns3_desc *desc; |
2564 | int last_bd; | |
2565 | ||
2566 | /* When driver handle the rss type, ring->next_to_clean indicates the | |
2567 | * first descriptor of next packet, need -1 here. | |
2568 | */ | |
2569 | last_bd = (ring->next_to_clean - 1 + ring->desc_num) % ring->desc_num; | |
2570 | desc = &ring->desc[last_bd]; | |
8e4c877d PL |
2571 | |
2572 | if (le32_to_cpu(desc->rx.rss_hash)) | |
2573 | rss_type = handle->kinfo.rss_type; | |
2574 | else | |
2575 | rss_type = PKT_HASH_TYPE_NONE; | |
2576 | ||
2577 | skb_set_hash(skb, le32_to_cpu(desc->rx.rss_hash), rss_type); | |
2578 | } | |
2579 | ||
76ad4f0e | 2580 | static int hns3_handle_rx_bd(struct hns3_enet_ring *ring, |
72b50a78 | 2581 | struct sk_buff **out_skb) |
76ad4f0e S |
2582 | { |
2583 | struct net_device *netdev = ring->tqp->handle->kinfo.netdev; | |
72b50a78 | 2584 | struct sk_buff *skb = ring->skb; |
76ad4f0e S |
2585 | struct hns3_desc_cb *desc_cb; |
2586 | struct hns3_desc *desc; | |
76ad4f0e | 2587 | u32 bd_base_info; |
76ad4f0e S |
2588 | u32 l234info; |
2589 | int length; | |
72b50a78 | 2590 | int ret; |
76ad4f0e S |
2591 | |
2592 | desc = &ring->desc[ring->next_to_clean]; | |
2593 | desc_cb = &ring->desc_cb[ring->next_to_clean]; | |
2594 | ||
2595 | prefetch(desc); | |
2596 | ||
ca61f05e | 2597 | length = le16_to_cpu(desc->rx.size); |
76ad4f0e | 2598 | bd_base_info = le32_to_cpu(desc->rx.bd_base_info); |
76ad4f0e S |
2599 | |
2600 | /* Check valid BD */ | |
ccc23ef3 | 2601 | if (unlikely(!hnae3_get_bit(bd_base_info, HNS3_RXD_VLD_B))) |
72b50a78 | 2602 | return -ENXIO; |
76ad4f0e | 2603 | |
72b50a78 PL |
2604 | if (!skb) |
2605 | ring->va = (unsigned char *)desc_cb->buf + desc_cb->page_offset; | |
76ad4f0e S |
2606 | |
2607 | /* Prefetch first cache line of first page | |
2608 | * Idea is to cache few bytes of the header of the packet. Our L1 Cache | |
2609 | * line size is 64B so need to prefetch twice to make it 128B. But in | |
2610 | * actual we can have greater size of caches with 128B Level 1 cache | |
2611 | * lines. In such a case, single fetch would suffice to cache in the | |
2612 | * relevant part of the header. | |
2613 | */ | |
72b50a78 | 2614 | prefetch(ring->va); |
76ad4f0e | 2615 | #if L1_CACHE_BYTES < 128 |
72b50a78 | 2616 | prefetch(ring->va + L1_CACHE_BYTES); |
76ad4f0e S |
2617 | #endif |
2618 | ||
72b50a78 PL |
2619 | if (!skb) { |
2620 | ret = hns3_alloc_skb(ring, length, ring->va); | |
2621 | *out_skb = skb = ring->skb; | |
76ad4f0e | 2622 | |
72b50a78 PL |
2623 | if (ret < 0) /* alloc buffer fail */ |
2624 | return ret; | |
2625 | if (ret > 0) { /* need add frag */ | |
2626 | ret = hns3_add_frag(ring, desc, &skb, false); | |
2627 | if (ret) | |
2628 | return ret; | |
76ad4f0e | 2629 | |
72b50a78 PL |
2630 | /* As the head data may be changed when GRO enable, copy |
2631 | * the head data in after other data rx completed | |
2632 | */ | |
2633 | memcpy(skb->data, ring->va, | |
2634 | ALIGN(ring->pull_len, sizeof(long))); | |
2635 | } | |
76ad4f0e | 2636 | } else { |
72b50a78 PL |
2637 | ret = hns3_add_frag(ring, desc, &skb, true); |
2638 | if (ret) | |
2639 | return ret; | |
76ad4f0e | 2640 | |
72b50a78 PL |
2641 | /* As the head data may be changed when GRO enable, copy |
2642 | * the head data in after other data rx completed | |
2643 | */ | |
2644 | memcpy(skb->data, ring->va, | |
2645 | ALIGN(ring->pull_len, sizeof(long))); | |
76ad4f0e S |
2646 | } |
2647 | ||
928d369a | 2648 | l234info = le32_to_cpu(desc->rx.l234_info); |
72b50a78 | 2649 | bd_base_info = le32_to_cpu(desc->rx.bd_base_info); |
928d369a | 2650 | |
ca61f05e PL |
2651 | /* Based on hw strategy, the tag offloaded will be stored at |
2652 | * ot_vlan_tag in two layer tag case, and stored at vlan_tag | |
2653 | * in one layer tag case. | |
2654 | */ | |
2655 | if (netdev->features & NETIF_F_HW_VLAN_CTAG_RX) { | |
2656 | u16 vlan_tag; | |
2657 | ||
34456a7c | 2658 | if (hns3_parse_vlan_tag(ring, desc, l234info, &vlan_tag)) |
ca61f05e PL |
2659 | __vlan_hwaccel_put_tag(skb, |
2660 | htons(ETH_P_8021Q), | |
2661 | vlan_tag); | |
2662 | } | |
2663 | ||
ccc23ef3 | 2664 | if (unlikely(!hnae3_get_bit(bd_base_info, HNS3_RXD_VLD_B))) { |
76ad4f0e S |
2665 | u64_stats_update_begin(&ring->syncp); |
2666 | ring->stats.non_vld_descs++; | |
2667 | u64_stats_update_end(&ring->syncp); | |
2668 | ||
2669 | dev_kfree_skb_any(skb); | |
2670 | return -EINVAL; | |
2671 | } | |
2672 | ||
2673 | if (unlikely((!desc->rx.pkt_len) || | |
ccc23ef3 | 2674 | hnae3_get_bit(l234info, HNS3_RXD_TRUNCAT_B))) { |
76ad4f0e S |
2675 | u64_stats_update_begin(&ring->syncp); |
2676 | ring->stats.err_pkt_len++; | |
2677 | u64_stats_update_end(&ring->syncp); | |
2678 | ||
2679 | dev_kfree_skb_any(skb); | |
2680 | return -EFAULT; | |
2681 | } | |
2682 | ||
ccc23ef3 | 2683 | if (unlikely(hnae3_get_bit(l234info, HNS3_RXD_L2E_B))) { |
76ad4f0e S |
2684 | u64_stats_update_begin(&ring->syncp); |
2685 | ring->stats.l2_err++; | |
2686 | u64_stats_update_end(&ring->syncp); | |
2687 | ||
2688 | dev_kfree_skb_any(skb); | |
2689 | return -EFAULT; | |
2690 | } | |
2691 | ||
2692 | u64_stats_update_begin(&ring->syncp); | |
2693 | ring->stats.rx_pkts++; | |
2694 | ring->stats.rx_bytes += skb->len; | |
2695 | u64_stats_update_end(&ring->syncp); | |
2696 | ||
2697 | ring->tqp_vector->rx_group.total_bytes += skb->len; | |
2698 | ||
5337b725 PL |
2699 | /* This is needed in order to enable forwarding support */ |
2700 | hns3_set_gro_param(skb, l234info, bd_base_info); | |
2701 | ||
76ad4f0e | 2702 | hns3_rx_checksum(ring, skb, desc); |
72b50a78 | 2703 | *out_skb = skb; |
8e4c877d PL |
2704 | hns3_set_rx_skb_rss_type(ring, skb); |
2705 | ||
76ad4f0e S |
2706 | return 0; |
2707 | } | |
2708 | ||
d43e5aca YL |
2709 | int hns3_clean_rx_ring( |
2710 | struct hns3_enet_ring *ring, int budget, | |
2711 | void (*rx_fn)(struct hns3_enet_ring *, struct sk_buff *)) | |
76ad4f0e S |
2712 | { |
2713 | #define RCB_NOF_ALLOC_RX_BUFF_ONCE 16 | |
2714 | struct net_device *netdev = ring->tqp->handle->kinfo.netdev; | |
2715 | int recv_pkts, recv_bds, clean_count, err; | |
72b50a78 PL |
2716 | int unused_count = hns3_desc_unused(ring) - ring->pending_buf; |
2717 | struct sk_buff *skb = ring->skb; | |
2718 | int num; | |
76ad4f0e S |
2719 | |
2720 | num = readl_relaxed(ring->tqp->io_base + HNS3_RING_RX_RING_FBDNUM_REG); | |
2721 | rmb(); /* Make sure num taken effect before the other data is touched */ | |
2722 | ||
2723 | recv_pkts = 0, recv_bds = 0, clean_count = 0; | |
2724 | num -= unused_count; | |
2725 | ||
2726 | while (recv_pkts < budget && recv_bds < num) { | |
2727 | /* Reuse or realloc buffers */ | |
2728 | if (clean_count + unused_count >= RCB_NOF_ALLOC_RX_BUFF_ONCE) { | |
2729 | hns3_nic_alloc_rx_buffers(ring, | |
2730 | clean_count + unused_count); | |
2731 | clean_count = 0; | |
72b50a78 PL |
2732 | unused_count = hns3_desc_unused(ring) - |
2733 | ring->pending_buf; | |
76ad4f0e S |
2734 | } |
2735 | ||
2736 | /* Poll one pkt */ | |
72b50a78 | 2737 | err = hns3_handle_rx_bd(ring, &skb); |
76ad4f0e S |
2738 | if (unlikely(!skb)) /* This fault cannot be repaired */ |
2739 | goto out; | |
2740 | ||
72b50a78 PL |
2741 | if (err == -ENXIO) { /* Do not get FE for the packet */ |
2742 | goto out; | |
2743 | } else if (unlikely(err)) { /* Do jump the err */ | |
2744 | recv_bds += ring->pending_buf; | |
2745 | clean_count += ring->pending_buf; | |
2746 | ring->skb = NULL; | |
2747 | ring->pending_buf = 0; | |
76ad4f0e S |
2748 | continue; |
2749 | } | |
2750 | ||
2751 | /* Do update ip stack process */ | |
2752 | skb->protocol = eth_type_trans(skb, netdev); | |
d43e5aca | 2753 | rx_fn(ring, skb); |
72b50a78 PL |
2754 | recv_bds += ring->pending_buf; |
2755 | clean_count += ring->pending_buf; | |
2756 | ring->skb = NULL; | |
2757 | ring->pending_buf = 0; | |
76ad4f0e S |
2758 | |
2759 | recv_pkts++; | |
2760 | } | |
2761 | ||
2762 | out: | |
2763 | /* Make all data has been write before submit */ | |
2764 | if (clean_count + unused_count > 0) | |
2765 | hns3_nic_alloc_rx_buffers(ring, | |
2766 | clean_count + unused_count); | |
2767 | ||
2768 | return recv_pkts; | |
2769 | } | |
2770 | ||
2771 | static bool hns3_get_new_int_gl(struct hns3_enet_ring_group *ring_group) | |
2772 | { | |
50477f37 FL |
2773 | struct hns3_enet_tqp_vector *tqp_vector = |
2774 | ring_group->ring->tqp_vector; | |
76ad4f0e | 2775 | enum hns3_flow_level_range new_flow_level; |
50477f37 FL |
2776 | int packets_per_msecs; |
2777 | int bytes_per_msecs; | |
2778 | u32 time_passed_ms; | |
76ad4f0e | 2779 | u16 new_int_gl; |
76ad4f0e | 2780 | |
3f58e29e | 2781 | if (!tqp_vector->last_jiffies) |
76ad4f0e S |
2782 | return false; |
2783 | ||
2784 | if (ring_group->total_packets == 0) { | |
d420d2de YL |
2785 | ring_group->coal.int_gl = HNS3_INT_GL_50K; |
2786 | ring_group->coal.flow_level = HNS3_FLOW_LOW; | |
76ad4f0e S |
2787 | return true; |
2788 | } | |
2789 | ||
2790 | /* Simple throttlerate management | |
2791 | * 0-10MB/s lower (50000 ints/s) | |
2792 | * 10-20MB/s middle (20000 ints/s) | |
2793 | * 20-1249MB/s high (18000 ints/s) | |
2794 | * > 40000pps ultra (8000 ints/s) | |
2795 | */ | |
d420d2de YL |
2796 | new_flow_level = ring_group->coal.flow_level; |
2797 | new_int_gl = ring_group->coal.int_gl; | |
50477f37 FL |
2798 | time_passed_ms = |
2799 | jiffies_to_msecs(jiffies - tqp_vector->last_jiffies); | |
2800 | ||
2801 | if (!time_passed_ms) | |
2802 | return false; | |
2803 | ||
2804 | do_div(ring_group->total_packets, time_passed_ms); | |
2805 | packets_per_msecs = ring_group->total_packets; | |
2806 | ||
2807 | do_div(ring_group->total_bytes, time_passed_ms); | |
2808 | bytes_per_msecs = ring_group->total_bytes; | |
2809 | ||
2810 | #define HNS3_RX_LOW_BYTE_RATE 10000 | |
2811 | #define HNS3_RX_MID_BYTE_RATE 20000 | |
76ad4f0e S |
2812 | |
2813 | switch (new_flow_level) { | |
2814 | case HNS3_FLOW_LOW: | |
50477f37 | 2815 | if (bytes_per_msecs > HNS3_RX_LOW_BYTE_RATE) |
76ad4f0e S |
2816 | new_flow_level = HNS3_FLOW_MID; |
2817 | break; | |
2818 | case HNS3_FLOW_MID: | |
50477f37 | 2819 | if (bytes_per_msecs > HNS3_RX_MID_BYTE_RATE) |
76ad4f0e | 2820 | new_flow_level = HNS3_FLOW_HIGH; |
50477f37 | 2821 | else if (bytes_per_msecs <= HNS3_RX_LOW_BYTE_RATE) |
76ad4f0e S |
2822 | new_flow_level = HNS3_FLOW_LOW; |
2823 | break; | |
2824 | case HNS3_FLOW_HIGH: | |
2825 | case HNS3_FLOW_ULTRA: | |
2826 | default: | |
50477f37 | 2827 | if (bytes_per_msecs <= HNS3_RX_MID_BYTE_RATE) |
76ad4f0e S |
2828 | new_flow_level = HNS3_FLOW_MID; |
2829 | break; | |
2830 | } | |
2831 | ||
50477f37 FL |
2832 | #define HNS3_RX_ULTRA_PACKET_RATE 40 |
2833 | ||
2834 | if (packets_per_msecs > HNS3_RX_ULTRA_PACKET_RATE && | |
2835 | &tqp_vector->rx_group == ring_group) | |
76ad4f0e S |
2836 | new_flow_level = HNS3_FLOW_ULTRA; |
2837 | ||
2838 | switch (new_flow_level) { | |
2839 | case HNS3_FLOW_LOW: | |
2840 | new_int_gl = HNS3_INT_GL_50K; | |
2841 | break; | |
2842 | case HNS3_FLOW_MID: | |
2843 | new_int_gl = HNS3_INT_GL_20K; | |
2844 | break; | |
2845 | case HNS3_FLOW_HIGH: | |
2846 | new_int_gl = HNS3_INT_GL_18K; | |
2847 | break; | |
2848 | case HNS3_FLOW_ULTRA: | |
2849 | new_int_gl = HNS3_INT_GL_8K; | |
2850 | break; | |
2851 | default: | |
2852 | break; | |
2853 | } | |
2854 | ||
2855 | ring_group->total_bytes = 0; | |
2856 | ring_group->total_packets = 0; | |
d420d2de YL |
2857 | ring_group->coal.flow_level = new_flow_level; |
2858 | if (new_int_gl != ring_group->coal.int_gl) { | |
2859 | ring_group->coal.int_gl = new_int_gl; | |
76ad4f0e S |
2860 | return true; |
2861 | } | |
2862 | return false; | |
2863 | } | |
2864 | ||
2865 | static void hns3_update_new_int_gl(struct hns3_enet_tqp_vector *tqp_vector) | |
2866 | { | |
dc114fce FL |
2867 | struct hns3_enet_ring_group *rx_group = &tqp_vector->rx_group; |
2868 | struct hns3_enet_ring_group *tx_group = &tqp_vector->tx_group; | |
2869 | bool rx_update, tx_update; | |
2870 | ||
9c46bc10 PL |
2871 | /* update param every 1000ms */ |
2872 | if (time_before(jiffies, | |
2873 | tqp_vector->last_jiffies + msecs_to_jiffies(1000))) | |
3f97bd23 | 2874 | return; |
3f97bd23 | 2875 | |
d420d2de | 2876 | if (rx_group->coal.gl_adapt_enable) { |
dc114fce FL |
2877 | rx_update = hns3_get_new_int_gl(rx_group); |
2878 | if (rx_update) | |
2879 | hns3_set_vector_coalesce_rx_gl(tqp_vector, | |
d420d2de | 2880 | rx_group->coal.int_gl); |
dc114fce FL |
2881 | } |
2882 | ||
d420d2de | 2883 | if (tx_group->coal.gl_adapt_enable) { |
dc114fce FL |
2884 | tx_update = hns3_get_new_int_gl(&tqp_vector->tx_group); |
2885 | if (tx_update) | |
2886 | hns3_set_vector_coalesce_tx_gl(tqp_vector, | |
d420d2de | 2887 | tx_group->coal.int_gl); |
76ad4f0e | 2888 | } |
3f97bd23 | 2889 | |
50477f37 | 2890 | tqp_vector->last_jiffies = jiffies; |
76ad4f0e S |
2891 | } |
2892 | ||
2893 | static int hns3_nic_common_poll(struct napi_struct *napi, int budget) | |
2894 | { | |
f22463fd | 2895 | struct hns3_nic_priv *priv = netdev_priv(napi->dev); |
76ad4f0e S |
2896 | struct hns3_enet_ring *ring; |
2897 | int rx_pkt_total = 0; | |
2898 | ||
2899 | struct hns3_enet_tqp_vector *tqp_vector = | |
2900 | container_of(napi, struct hns3_enet_tqp_vector, napi); | |
2901 | bool clean_complete = true; | |
2902 | int rx_budget; | |
2903 | ||
f22463fd HT |
2904 | if (unlikely(test_bit(HNS3_NIC_STATE_DOWN, &priv->state))) { |
2905 | napi_complete(napi); | |
2906 | return 0; | |
2907 | } | |
2908 | ||
76ad4f0e S |
2909 | /* Since the actual Tx work is minimal, we can give the Tx a larger |
2910 | * budget and be more aggressive about cleaning up the Tx descriptors. | |
2911 | */ | |
6a38a95f PL |
2912 | hns3_for_each_ring(ring, tqp_vector->tx_group) |
2913 | hns3_clean_tx_ring(ring); | |
76ad4f0e S |
2914 | |
2915 | /* make sure rx ring budget not smaller than 1 */ | |
2916 | rx_budget = max(budget / tqp_vector->num_tqps, 1); | |
2917 | ||
2918 | hns3_for_each_ring(ring, tqp_vector->rx_group) { | |
d43e5aca YL |
2919 | int rx_cleaned = hns3_clean_rx_ring(ring, rx_budget, |
2920 | hns3_rx_skb); | |
76ad4f0e S |
2921 | |
2922 | if (rx_cleaned >= rx_budget) | |
2923 | clean_complete = false; | |
2924 | ||
2925 | rx_pkt_total += rx_cleaned; | |
2926 | } | |
2927 | ||
2928 | tqp_vector->rx_group.total_packets += rx_pkt_total; | |
2929 | ||
2930 | if (!clean_complete) | |
2931 | return budget; | |
2932 | ||
be1c4048 HT |
2933 | if (napi_complete(napi) && |
2934 | likely(!test_bit(HNS3_NIC_STATE_DOWN, &priv->state))) { | |
f22463fd HT |
2935 | hns3_update_new_int_gl(tqp_vector); |
2936 | hns3_mask_vector_irq(tqp_vector, 1); | |
2937 | } | |
76ad4f0e S |
2938 | |
2939 | return rx_pkt_total; | |
2940 | } | |
2941 | ||
2942 | static int hns3_get_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector, | |
2943 | struct hnae3_ring_chain_node *head) | |
2944 | { | |
2945 | struct pci_dev *pdev = tqp_vector->handle->pdev; | |
2946 | struct hnae3_ring_chain_node *cur_chain = head; | |
2947 | struct hnae3_ring_chain_node *chain; | |
2948 | struct hns3_enet_ring *tx_ring; | |
2949 | struct hns3_enet_ring *rx_ring; | |
2950 | ||
2951 | tx_ring = tqp_vector->tx_group.ring; | |
2952 | if (tx_ring) { | |
2953 | cur_chain->tqp_index = tx_ring->tqp->tqp_index; | |
ccc23ef3 PL |
2954 | hnae3_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B, |
2955 | HNAE3_RING_TYPE_TX); | |
2956 | hnae3_set_field(cur_chain->int_gl_idx, HNAE3_RING_GL_IDX_M, | |
2957 | HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_TX); | |
76ad4f0e S |
2958 | |
2959 | cur_chain->next = NULL; | |
2960 | ||
2961 | while (tx_ring->next) { | |
2962 | tx_ring = tx_ring->next; | |
2963 | ||
2964 | chain = devm_kzalloc(&pdev->dev, sizeof(*chain), | |
2965 | GFP_KERNEL); | |
2966 | if (!chain) | |
1129d424 | 2967 | goto err_free_chain; |
76ad4f0e S |
2968 | |
2969 | cur_chain->next = chain; | |
2970 | chain->tqp_index = tx_ring->tqp->tqp_index; | |
ccc23ef3 PL |
2971 | hnae3_set_bit(chain->flag, HNAE3_RING_TYPE_B, |
2972 | HNAE3_RING_TYPE_TX); | |
2973 | hnae3_set_field(chain->int_gl_idx, | |
2974 | HNAE3_RING_GL_IDX_M, | |
2975 | HNAE3_RING_GL_IDX_S, | |
2976 | HNAE3_RING_GL_TX); | |
76ad4f0e S |
2977 | |
2978 | cur_chain = chain; | |
2979 | } | |
2980 | } | |
2981 | ||
2982 | rx_ring = tqp_vector->rx_group.ring; | |
2983 | if (!tx_ring && rx_ring) { | |
2984 | cur_chain->next = NULL; | |
2985 | cur_chain->tqp_index = rx_ring->tqp->tqp_index; | |
ccc23ef3 PL |
2986 | hnae3_set_bit(cur_chain->flag, HNAE3_RING_TYPE_B, |
2987 | HNAE3_RING_TYPE_RX); | |
2988 | hnae3_set_field(cur_chain->int_gl_idx, HNAE3_RING_GL_IDX_M, | |
2989 | HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX); | |
76ad4f0e S |
2990 | |
2991 | rx_ring = rx_ring->next; | |
2992 | } | |
2993 | ||
2994 | while (rx_ring) { | |
2995 | chain = devm_kzalloc(&pdev->dev, sizeof(*chain), GFP_KERNEL); | |
2996 | if (!chain) | |
1129d424 | 2997 | goto err_free_chain; |
76ad4f0e S |
2998 | |
2999 | cur_chain->next = chain; | |
3000 | chain->tqp_index = rx_ring->tqp->tqp_index; | |
ccc23ef3 PL |
3001 | hnae3_set_bit(chain->flag, HNAE3_RING_TYPE_B, |
3002 | HNAE3_RING_TYPE_RX); | |
3003 | hnae3_set_field(chain->int_gl_idx, HNAE3_RING_GL_IDX_M, | |
3004 | HNAE3_RING_GL_IDX_S, HNAE3_RING_GL_RX); | |
f230c6c5 | 3005 | |
76ad4f0e S |
3006 | cur_chain = chain; |
3007 | ||
3008 | rx_ring = rx_ring->next; | |
3009 | } | |
3010 | ||
3011 | return 0; | |
1129d424 HT |
3012 | |
3013 | err_free_chain: | |
3014 | cur_chain = head->next; | |
3015 | while (cur_chain) { | |
3016 | chain = cur_chain->next; | |
cc8e7db2 | 3017 | devm_kfree(&pdev->dev, cur_chain); |
1129d424 HT |
3018 | cur_chain = chain; |
3019 | } | |
cc8e7db2 | 3020 | head->next = NULL; |
1129d424 HT |
3021 | |
3022 | return -ENOMEM; | |
76ad4f0e S |
3023 | } |
3024 | ||
3025 | static void hns3_free_vector_ring_chain(struct hns3_enet_tqp_vector *tqp_vector, | |
3026 | struct hnae3_ring_chain_node *head) | |
3027 | { | |
3028 | struct pci_dev *pdev = tqp_vector->handle->pdev; | |
3029 | struct hnae3_ring_chain_node *chain_tmp, *chain; | |
3030 | ||
3031 | chain = head->next; | |
3032 | ||
3033 | while (chain) { | |
3034 | chain_tmp = chain->next; | |
3035 | devm_kfree(&pdev->dev, chain); | |
3036 | chain = chain_tmp; | |
3037 | } | |
3038 | } | |
3039 | ||
3040 | static void hns3_add_ring_to_group(struct hns3_enet_ring_group *group, | |
3041 | struct hns3_enet_ring *ring) | |
3042 | { | |
3043 | ring->next = group->ring; | |
3044 | group->ring = ring; | |
3045 | ||
3046 | group->count++; | |
3047 | } | |
3048 | ||
15040788 PL |
3049 | static void hns3_nic_set_cpumask(struct hns3_nic_priv *priv) |
3050 | { | |
3051 | struct pci_dev *pdev = priv->ae_handle->pdev; | |
3052 | struct hns3_enet_tqp_vector *tqp_vector; | |
3053 | int num_vectors = priv->vector_num; | |
3054 | int numa_node; | |
3055 | int vector_i; | |
3056 | ||
3057 | numa_node = dev_to_node(&pdev->dev); | |
3058 | ||
3059 | for (vector_i = 0; vector_i < num_vectors; vector_i++) { | |
3060 | tqp_vector = &priv->tqp_vector[vector_i]; | |
3061 | cpumask_set_cpu(cpumask_local_spread(vector_i, numa_node), | |
3062 | &tqp_vector->affinity_mask); | |
3063 | } | |
3064 | } | |
3065 | ||
76ad4f0e S |
3066 | static int hns3_nic_init_vector_data(struct hns3_nic_priv *priv) |
3067 | { | |
3068 | struct hnae3_ring_chain_node vector_ring_chain; | |
3069 | struct hnae3_handle *h = priv->ae_handle; | |
3070 | struct hns3_enet_tqp_vector *tqp_vector; | |
76ad4f0e | 3071 | int ret = 0; |
3c424930 | 3072 | int i; |
76ad4f0e | 3073 | |
15040788 PL |
3074 | hns3_nic_set_cpumask(priv); |
3075 | ||
6cbd6d33 YL |
3076 | for (i = 0; i < priv->vector_num; i++) { |
3077 | tqp_vector = &priv->tqp_vector[i]; | |
3078 | hns3_vector_gl_rl_init_hw(tqp_vector, priv); | |
3079 | tqp_vector->num_tqps = 0; | |
3080 | } | |
76ad4f0e | 3081 | |
6cbd6d33 YL |
3082 | for (i = 0; i < h->kinfo.num_tqps; i++) { |
3083 | u16 vector_i = i % priv->vector_num; | |
3084 | u16 tqp_num = h->kinfo.num_tqps; | |
76ad4f0e S |
3085 | |
3086 | tqp_vector = &priv->tqp_vector[vector_i]; | |
3087 | ||
3088 | hns3_add_ring_to_group(&tqp_vector->tx_group, | |
3089 | priv->ring_data[i].ring); | |
3090 | ||
3091 | hns3_add_ring_to_group(&tqp_vector->rx_group, | |
3092 | priv->ring_data[i + tqp_num].ring); | |
3093 | ||
76ad4f0e S |
3094 | priv->ring_data[i].ring->tqp_vector = tqp_vector; |
3095 | priv->ring_data[i + tqp_num].ring->tqp_vector = tqp_vector; | |
6cbd6d33 | 3096 | tqp_vector->num_tqps++; |
76ad4f0e S |
3097 | } |
3098 | ||
6cbd6d33 | 3099 | for (i = 0; i < priv->vector_num; i++) { |
76ad4f0e S |
3100 | tqp_vector = &priv->tqp_vector[i]; |
3101 | ||
3102 | tqp_vector->rx_group.total_bytes = 0; | |
3103 | tqp_vector->rx_group.total_packets = 0; | |
3104 | tqp_vector->tx_group.total_bytes = 0; | |
3105 | tqp_vector->tx_group.total_packets = 0; | |
76ad4f0e S |
3106 | tqp_vector->handle = h; |
3107 | ||
3108 | ret = hns3_get_vector_ring_chain(tqp_vector, | |
3109 | &vector_ring_chain); | |
3110 | if (ret) | |
cc8e7db2 | 3111 | goto map_ring_fail; |
76ad4f0e S |
3112 | |
3113 | ret = h->ae_algo->ops->map_ring_to_vector(h, | |
3114 | tqp_vector->vector_irq, &vector_ring_chain); | |
76ad4f0e S |
3115 | |
3116 | hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain); | |
3117 | ||
6cbd6d33 | 3118 | if (ret) |
3c424930 | 3119 | goto map_ring_fail; |
6cbd6d33 | 3120 | |
76ad4f0e S |
3121 | netif_napi_add(priv->netdev, &tqp_vector->napi, |
3122 | hns3_nic_common_poll, NAPI_POLL_WEIGHT); | |
3123 | } | |
3124 | ||
6cbd6d33 | 3125 | return 0; |
3c424930 HT |
3126 | |
3127 | map_ring_fail: | |
3128 | while (i--) | |
3129 | netif_napi_del(&priv->tqp_vector[i].napi); | |
3130 | ||
3131 | return ret; | |
6cbd6d33 YL |
3132 | } |
3133 | ||
3134 | static int hns3_nic_alloc_vector_data(struct hns3_nic_priv *priv) | |
3135 | { | |
f56424b6 JS |
3136 | #define HNS3_VECTOR_PF_MAX_NUM 64 |
3137 | ||
6cbd6d33 YL |
3138 | struct hnae3_handle *h = priv->ae_handle; |
3139 | struct hns3_enet_tqp_vector *tqp_vector; | |
3140 | struct hnae3_vector_info *vector; | |
3141 | struct pci_dev *pdev = h->pdev; | |
3142 | u16 tqp_num = h->kinfo.num_tqps; | |
3143 | u16 vector_num; | |
3144 | int ret = 0; | |
3145 | u16 i; | |
3146 | ||
3147 | /* RSS size, cpu online and vector_num should be the same */ | |
3148 | /* Should consider 2p/4p later */ | |
3149 | vector_num = min_t(u16, num_online_cpus(), tqp_num); | |
f56424b6 JS |
3150 | vector_num = min_t(u16, vector_num, HNS3_VECTOR_PF_MAX_NUM); |
3151 | ||
6cbd6d33 YL |
3152 | vector = devm_kcalloc(&pdev->dev, vector_num, sizeof(*vector), |
3153 | GFP_KERNEL); | |
3154 | if (!vector) | |
3155 | return -ENOMEM; | |
3156 | ||
3157 | vector_num = h->ae_algo->ops->get_vector(h, vector_num, vector); | |
3158 | ||
3159 | priv->vector_num = vector_num; | |
3160 | priv->tqp_vector = (struct hns3_enet_tqp_vector *) | |
3161 | devm_kcalloc(&pdev->dev, vector_num, sizeof(*priv->tqp_vector), | |
3162 | GFP_KERNEL); | |
3163 | if (!priv->tqp_vector) { | |
3164 | ret = -ENOMEM; | |
3165 | goto out; | |
3166 | } | |
3167 | ||
3168 | for (i = 0; i < priv->vector_num; i++) { | |
3169 | tqp_vector = &priv->tqp_vector[i]; | |
3170 | tqp_vector->idx = i; | |
3171 | tqp_vector->mask_addr = vector[i].io_addr; | |
3172 | tqp_vector->vector_irq = vector[i].vector; | |
3173 | hns3_vector_gl_rl_init(tqp_vector, priv); | |
3174 | } | |
3175 | ||
76ad4f0e S |
3176 | out: |
3177 | devm_kfree(&pdev->dev, vector); | |
3178 | return ret; | |
3179 | } | |
3180 | ||
6cbd6d33 YL |
3181 | static void hns3_clear_ring_group(struct hns3_enet_ring_group *group) |
3182 | { | |
3183 | group->ring = NULL; | |
3184 | group->count = 0; | |
3185 | } | |
3186 | ||
76ad4f0e S |
3187 | static int hns3_nic_uninit_vector_data(struct hns3_nic_priv *priv) |
3188 | { | |
3189 | struct hnae3_ring_chain_node vector_ring_chain; | |
3190 | struct hnae3_handle *h = priv->ae_handle; | |
3191 | struct hns3_enet_tqp_vector *tqp_vector; | |
76ad4f0e S |
3192 | int i, ret; |
3193 | ||
3194 | for (i = 0; i < priv->vector_num; i++) { | |
3195 | tqp_vector = &priv->tqp_vector[i]; | |
3196 | ||
3197 | ret = hns3_get_vector_ring_chain(tqp_vector, | |
3198 | &vector_ring_chain); | |
3199 | if (ret) | |
3200 | return ret; | |
3201 | ||
3202 | ret = h->ae_algo->ops->unmap_ring_from_vector(h, | |
3203 | tqp_vector->vector_irq, &vector_ring_chain); | |
3204 | if (ret) | |
3205 | return ret; | |
3206 | ||
3207 | hns3_free_vector_ring_chain(tqp_vector, &vector_ring_chain); | |
3208 | ||
32a9b305 HT |
3209 | if (tqp_vector->irq_init_flag == HNS3_VECTOR_INITED) { |
3210 | irq_set_affinity_notifier(tqp_vector->vector_irq, | |
3211 | NULL); | |
3212 | irq_set_affinity_hint(tqp_vector->vector_irq, NULL); | |
3213 | free_irq(tqp_vector->vector_irq, tqp_vector); | |
3214 | tqp_vector->irq_init_flag = HNS3_VECTOR_NOT_INITED; | |
76ad4f0e S |
3215 | } |
3216 | ||
3217 | priv->ring_data[i].ring->irq_init_flag = HNS3_VECTOR_NOT_INITED; | |
6cbd6d33 YL |
3218 | hns3_clear_ring_group(&tqp_vector->rx_group); |
3219 | hns3_clear_ring_group(&tqp_vector->tx_group); | |
76ad4f0e S |
3220 | netif_napi_del(&priv->tqp_vector[i].napi); |
3221 | } | |
3222 | ||
6cbd6d33 YL |
3223 | return 0; |
3224 | } | |
3225 | ||
3226 | static int hns3_nic_dealloc_vector_data(struct hns3_nic_priv *priv) | |
3227 | { | |
3228 | struct hnae3_handle *h = priv->ae_handle; | |
3229 | struct pci_dev *pdev = h->pdev; | |
3230 | int i, ret; | |
3231 | ||
3232 | for (i = 0; i < priv->vector_num; i++) { | |
3233 | struct hns3_enet_tqp_vector *tqp_vector; | |
3234 | ||
3235 | tqp_vector = &priv->tqp_vector[i]; | |
3236 | ret = h->ae_algo->ops->put_vector(h, tqp_vector->vector_irq); | |
3237 | if (ret) | |
3238 | return ret; | |
3239 | } | |
76ad4f0e | 3240 | |
6cbd6d33 | 3241 | devm_kfree(&pdev->dev, priv->tqp_vector); |
76ad4f0e S |
3242 | return 0; |
3243 | } | |
3244 | ||
3245 | static int hns3_ring_get_cfg(struct hnae3_queue *q, struct hns3_nic_priv *priv, | |
3246 | int ring_type) | |
3247 | { | |
3248 | struct hns3_nic_ring_data *ring_data = priv->ring_data; | |
3249 | int queue_num = priv->ae_handle->kinfo.num_tqps; | |
3250 | struct pci_dev *pdev = priv->ae_handle->pdev; | |
3251 | struct hns3_enet_ring *ring; | |
3252 | ||
3253 | ring = devm_kzalloc(&pdev->dev, sizeof(*ring), GFP_KERNEL); | |
3254 | if (!ring) | |
3255 | return -ENOMEM; | |
3256 | ||
3257 | if (ring_type == HNAE3_RING_TYPE_TX) { | |
3258 | ring_data[q->tqp_index].ring = ring; | |
66b44730 | 3259 | ring_data[q->tqp_index].queue_index = q->tqp_index; |
76ad4f0e S |
3260 | ring->io_base = (u8 __iomem *)q->io_base + HNS3_TX_REG_OFFSET; |
3261 | } else { | |
3262 | ring_data[q->tqp_index + queue_num].ring = ring; | |
66b44730 | 3263 | ring_data[q->tqp_index + queue_num].queue_index = q->tqp_index; |
76ad4f0e S |
3264 | ring->io_base = q->io_base; |
3265 | } | |
3266 | ||
ccc23ef3 | 3267 | hnae3_set_bit(ring->flag, HNAE3_RING_TYPE_B, ring_type); |
76ad4f0e | 3268 | |
76ad4f0e S |
3269 | ring->tqp = q; |
3270 | ring->desc = NULL; | |
3271 | ring->desc_cb = NULL; | |
3272 | ring->dev = priv->dev; | |
3273 | ring->desc_dma_addr = 0; | |
3274 | ring->buf_size = q->buf_size; | |
3275 | ring->desc_num = q->desc_num; | |
3276 | ring->next_to_use = 0; | |
3277 | ring->next_to_clean = 0; | |
3278 | ||
3279 | return 0; | |
3280 | } | |
3281 | ||
3282 | static int hns3_queue_to_ring(struct hnae3_queue *tqp, | |
3283 | struct hns3_nic_priv *priv) | |
3284 | { | |
3285 | int ret; | |
3286 | ||
3287 | ret = hns3_ring_get_cfg(tqp, priv, HNAE3_RING_TYPE_TX); | |
3288 | if (ret) | |
3289 | return ret; | |
3290 | ||
3291 | ret = hns3_ring_get_cfg(tqp, priv, HNAE3_RING_TYPE_RX); | |
1129d424 HT |
3292 | if (ret) { |
3293 | devm_kfree(priv->dev, priv->ring_data[tqp->tqp_index].ring); | |
76ad4f0e | 3294 | return ret; |
1129d424 | 3295 | } |
76ad4f0e S |
3296 | |
3297 | return 0; | |
3298 | } | |
3299 | ||
3300 | static int hns3_get_ring_config(struct hns3_nic_priv *priv) | |
3301 | { | |
3302 | struct hnae3_handle *h = priv->ae_handle; | |
3303 | struct pci_dev *pdev = h->pdev; | |
3304 | int i, ret; | |
3305 | ||
3306 | priv->ring_data = devm_kzalloc(&pdev->dev, h->kinfo.num_tqps * | |
3307 | sizeof(*priv->ring_data) * 2, | |
3308 | GFP_KERNEL); | |
3309 | if (!priv->ring_data) | |
3310 | return -ENOMEM; | |
3311 | ||
3312 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
3313 | ret = hns3_queue_to_ring(h->kinfo.tqp[i], priv); | |
3314 | if (ret) | |
3315 | goto err; | |
3316 | } | |
3317 | ||
3318 | return 0; | |
3319 | err: | |
1129d424 HT |
3320 | while (i--) { |
3321 | devm_kfree(priv->dev, priv->ring_data[i].ring); | |
3322 | devm_kfree(priv->dev, | |
3323 | priv->ring_data[i + h->kinfo.num_tqps].ring); | |
3324 | } | |
3325 | ||
76ad4f0e S |
3326 | devm_kfree(&pdev->dev, priv->ring_data); |
3327 | return ret; | |
3328 | } | |
3329 | ||
f1f779ce PL |
3330 | static void hns3_put_ring_config(struct hns3_nic_priv *priv) |
3331 | { | |
3332 | struct hnae3_handle *h = priv->ae_handle; | |
3333 | int i; | |
3334 | ||
3335 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
3336 | devm_kfree(priv->dev, priv->ring_data[i].ring); | |
3337 | devm_kfree(priv->dev, | |
3338 | priv->ring_data[i + h->kinfo.num_tqps].ring); | |
3339 | } | |
3340 | devm_kfree(priv->dev, priv->ring_data); | |
3341 | } | |
3342 | ||
76ad4f0e S |
3343 | static int hns3_alloc_ring_memory(struct hns3_enet_ring *ring) |
3344 | { | |
3345 | int ret; | |
3346 | ||
3347 | if (ring->desc_num <= 0 || ring->buf_size <= 0) | |
3348 | return -EINVAL; | |
3349 | ||
3350 | ring->desc_cb = kcalloc(ring->desc_num, sizeof(ring->desc_cb[0]), | |
3351 | GFP_KERNEL); | |
3352 | if (!ring->desc_cb) { | |
3353 | ret = -ENOMEM; | |
3354 | goto out; | |
3355 | } | |
3356 | ||
3357 | ret = hns3_alloc_desc(ring); | |
3358 | if (ret) | |
3359 | goto out_with_desc_cb; | |
3360 | ||
3361 | if (!HNAE3_IS_TX_RING(ring)) { | |
3362 | ret = hns3_alloc_ring_buffers(ring); | |
3363 | if (ret) | |
3364 | goto out_with_desc; | |
3365 | } | |
3366 | ||
3367 | return 0; | |
3368 | ||
3369 | out_with_desc: | |
3370 | hns3_free_desc(ring); | |
3371 | out_with_desc_cb: | |
3372 | kfree(ring->desc_cb); | |
3373 | ring->desc_cb = NULL; | |
3374 | out: | |
3375 | return ret; | |
3376 | } | |
3377 | ||
3378 | static void hns3_fini_ring(struct hns3_enet_ring *ring) | |
3379 | { | |
3380 | hns3_free_desc(ring); | |
3381 | kfree(ring->desc_cb); | |
3382 | ring->desc_cb = NULL; | |
3383 | ring->next_to_clean = 0; | |
3384 | ring->next_to_use = 0; | |
3385 | } | |
3386 | ||
1db9b1bf | 3387 | static int hns3_buf_size2type(u32 buf_size) |
76ad4f0e S |
3388 | { |
3389 | int bd_size_type; | |
3390 | ||
3391 | switch (buf_size) { | |
3392 | case 512: | |
3393 | bd_size_type = HNS3_BD_SIZE_512_TYPE; | |
3394 | break; | |
3395 | case 1024: | |
3396 | bd_size_type = HNS3_BD_SIZE_1024_TYPE; | |
3397 | break; | |
3398 | case 2048: | |
3399 | bd_size_type = HNS3_BD_SIZE_2048_TYPE; | |
3400 | break; | |
3401 | case 4096: | |
3402 | bd_size_type = HNS3_BD_SIZE_4096_TYPE; | |
3403 | break; | |
3404 | default: | |
3405 | bd_size_type = HNS3_BD_SIZE_2048_TYPE; | |
3406 | } | |
3407 | ||
3408 | return bd_size_type; | |
3409 | } | |
3410 | ||
3411 | static void hns3_init_ring_hw(struct hns3_enet_ring *ring) | |
3412 | { | |
3413 | dma_addr_t dma = ring->desc_dma_addr; | |
3414 | struct hnae3_queue *q = ring->tqp; | |
3415 | ||
3416 | if (!HNAE3_IS_TX_RING(ring)) { | |
3417 | hns3_write_dev(q, HNS3_RING_RX_RING_BASEADDR_L_REG, | |
3418 | (u32)dma); | |
3419 | hns3_write_dev(q, HNS3_RING_RX_RING_BASEADDR_H_REG, | |
3420 | (u32)((dma >> 31) >> 1)); | |
3421 | ||
3422 | hns3_write_dev(q, HNS3_RING_RX_RING_BD_LEN_REG, | |
3423 | hns3_buf_size2type(ring->buf_size)); | |
3424 | hns3_write_dev(q, HNS3_RING_RX_RING_BD_NUM_REG, | |
3425 | ring->desc_num / 8 - 1); | |
3426 | ||
3427 | } else { | |
3428 | hns3_write_dev(q, HNS3_RING_TX_RING_BASEADDR_L_REG, | |
3429 | (u32)dma); | |
3430 | hns3_write_dev(q, HNS3_RING_TX_RING_BASEADDR_H_REG, | |
3431 | (u32)((dma >> 31) >> 1)); | |
3432 | ||
76ad4f0e S |
3433 | hns3_write_dev(q, HNS3_RING_TX_RING_BD_NUM_REG, |
3434 | ring->desc_num / 8 - 1); | |
3435 | } | |
3436 | } | |
3437 | ||
fe46c859 YL |
3438 | static void hns3_init_tx_ring_tc(struct hns3_nic_priv *priv) |
3439 | { | |
3440 | struct hnae3_knic_private_info *kinfo = &priv->ae_handle->kinfo; | |
3441 | int i; | |
3442 | ||
3443 | for (i = 0; i < HNAE3_MAX_TC; i++) { | |
3444 | struct hnae3_tc_info *tc_info = &kinfo->tc_info[i]; | |
3445 | int j; | |
3446 | ||
3447 | if (!tc_info->enable) | |
3448 | continue; | |
3449 | ||
3450 | for (j = 0; j < tc_info->tqp_count; j++) { | |
3451 | struct hnae3_queue *q; | |
3452 | ||
3453 | q = priv->ring_data[tc_info->tqp_offset + j].ring->tqp; | |
3454 | hns3_write_dev(q, HNS3_RING_TX_RING_TC_REG, | |
3455 | tc_info->tc); | |
3456 | } | |
3457 | } | |
3458 | } | |
3459 | ||
5668abda | 3460 | int hns3_init_all_ring(struct hns3_nic_priv *priv) |
76ad4f0e S |
3461 | { |
3462 | struct hnae3_handle *h = priv->ae_handle; | |
3463 | int ring_num = h->kinfo.num_tqps * 2; | |
3464 | int i, j; | |
3465 | int ret; | |
3466 | ||
3467 | for (i = 0; i < ring_num; i++) { | |
3468 | ret = hns3_alloc_ring_memory(priv->ring_data[i].ring); | |
3469 | if (ret) { | |
3470 | dev_err(priv->dev, | |
3471 | "Alloc ring memory fail! ret=%d\n", ret); | |
3472 | goto out_when_alloc_ring_memory; | |
3473 | } | |
3474 | ||
76ad4f0e S |
3475 | u64_stats_init(&priv->ring_data[i].ring->syncp); |
3476 | } | |
3477 | ||
3478 | return 0; | |
3479 | ||
3480 | out_when_alloc_ring_memory: | |
3481 | for (j = i - 1; j >= 0; j--) | |
ee83f776 | 3482 | hns3_fini_ring(priv->ring_data[j].ring); |
76ad4f0e S |
3483 | |
3484 | return -ENOMEM; | |
3485 | } | |
3486 | ||
5668abda | 3487 | int hns3_uninit_all_ring(struct hns3_nic_priv *priv) |
76ad4f0e S |
3488 | { |
3489 | struct hnae3_handle *h = priv->ae_handle; | |
3490 | int i; | |
3491 | ||
3492 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
76ad4f0e S |
3493 | hns3_fini_ring(priv->ring_data[i].ring); |
3494 | hns3_fini_ring(priv->ring_data[i + h->kinfo.num_tqps].ring); | |
3495 | } | |
76ad4f0e S |
3496 | return 0; |
3497 | } | |
3498 | ||
3499 | /* Set mac addr if it is configured. or leave it to the AE driver */ | |
abe62a63 | 3500 | static int hns3_init_mac_addr(struct net_device *netdev, bool init) |
76ad4f0e S |
3501 | { |
3502 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
3503 | struct hnae3_handle *h = priv->ae_handle; | |
3504 | u8 mac_addr_temp[ETH_ALEN]; | |
abe62a63 | 3505 | int ret = 0; |
76ad4f0e | 3506 | |
edf76c8e | 3507 | if (h->ae_algo->ops->get_mac_addr && init) { |
76ad4f0e S |
3508 | h->ae_algo->ops->get_mac_addr(h, mac_addr_temp); |
3509 | ether_addr_copy(netdev->dev_addr, mac_addr_temp); | |
3510 | } | |
3511 | ||
3512 | /* Check if the MAC address is valid, if not get a random one */ | |
3513 | if (!is_valid_ether_addr(netdev->dev_addr)) { | |
3514 | eth_hw_addr_random(netdev); | |
3515 | dev_warn(priv->dev, "using random MAC address %pM\n", | |
3516 | netdev->dev_addr); | |
76ad4f0e | 3517 | } |
139e8792 L |
3518 | |
3519 | if (h->ae_algo->ops->set_mac_addr) | |
abe62a63 | 3520 | ret = h->ae_algo->ops->set_mac_addr(h, netdev->dev_addr, true); |
139e8792 | 3521 | |
abe62a63 | 3522 | return ret; |
76ad4f0e S |
3523 | } |
3524 | ||
7ce98982 JS |
3525 | static int hns3_restore_fd_rules(struct net_device *netdev) |
3526 | { | |
3527 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
3528 | int ret = 0; | |
3529 | ||
3530 | if (h->ae_algo->ops->restore_fd_rules) | |
3531 | ret = h->ae_algo->ops->restore_fd_rules(h); | |
3532 | ||
3533 | return ret; | |
3534 | } | |
3535 | ||
3536 | static void hns3_del_all_fd_rules(struct net_device *netdev, bool clear_list) | |
3537 | { | |
3538 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
3539 | ||
3540 | if (h->ae_algo->ops->del_all_fd_entries) | |
3541 | h->ae_algo->ops->del_all_fd_entries(h, clear_list); | |
3542 | } | |
3543 | ||
76ad4f0e S |
3544 | static void hns3_nic_set_priv_ops(struct net_device *netdev) |
3545 | { | |
3546 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
3547 | ||
e4c38d6e | 3548 | priv->ops.fill_desc = hns3_fill_desc; |
76ad4f0e | 3549 | if ((netdev->features & NETIF_F_TSO) || |
e4c38d6e | 3550 | (netdev->features & NETIF_F_TSO6)) |
76ad4f0e | 3551 | priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tso; |
e4c38d6e | 3552 | else |
76ad4f0e | 3553 | priv->ops.maybe_stop_tx = hns3_nic_maybe_stop_tx; |
76ad4f0e S |
3554 | } |
3555 | ||
337460de YL |
3556 | static int hns3_client_start(struct hnae3_handle *handle) |
3557 | { | |
3558 | if (!handle->ae_algo->ops->client_start) | |
3559 | return 0; | |
3560 | ||
3561 | return handle->ae_algo->ops->client_start(handle); | |
3562 | } | |
3563 | ||
3564 | static void hns3_client_stop(struct hnae3_handle *handle) | |
3565 | { | |
3566 | if (!handle->ae_algo->ops->client_stop) | |
3567 | return; | |
3568 | ||
3569 | handle->ae_algo->ops->client_stop(handle); | |
3570 | } | |
3571 | ||
76ad4f0e S |
3572 | static int hns3_client_init(struct hnae3_handle *handle) |
3573 | { | |
3574 | struct pci_dev *pdev = handle->pdev; | |
08ca3d58 | 3575 | u16 alloc_tqps, max_rss_size; |
76ad4f0e S |
3576 | struct hns3_nic_priv *priv; |
3577 | struct net_device *netdev; | |
3578 | int ret; | |
3579 | ||
08ca3d58 HT |
3580 | handle->ae_algo->ops->get_tqps_and_rss_info(handle, &alloc_tqps, |
3581 | &max_rss_size); | |
3582 | netdev = alloc_etherdev_mq(sizeof(struct hns3_nic_priv), alloc_tqps); | |
76ad4f0e S |
3583 | if (!netdev) |
3584 | return -ENOMEM; | |
3585 | ||
3586 | priv = netdev_priv(netdev); | |
3587 | priv->dev = &pdev->dev; | |
3588 | priv->netdev = netdev; | |
3589 | priv->ae_handle = handle; | |
f8fa222c | 3590 | priv->tx_timeout_count = 0; |
76ad4f0e S |
3591 | |
3592 | handle->kinfo.netdev = netdev; | |
3593 | handle->priv = (void *)priv; | |
3594 | ||
edf76c8e | 3595 | hns3_init_mac_addr(netdev, true); |
76ad4f0e S |
3596 | |
3597 | hns3_set_default_feature(netdev); | |
3598 | ||
3599 | netdev->watchdog_timeo = HNS3_TX_TIMEOUT; | |
3600 | netdev->priv_flags |= IFF_UNICAST_FLT; | |
3601 | netdev->netdev_ops = &hns3_nic_netdev_ops; | |
3602 | SET_NETDEV_DEV(netdev, &pdev->dev); | |
3603 | hns3_ethtool_set_ops(netdev); | |
3604 | hns3_nic_set_priv_ops(netdev); | |
3605 | ||
3606 | /* Carrier off reporting is important to ethtool even BEFORE open */ | |
3607 | netif_carrier_off(netdev); | |
3608 | ||
3609 | ret = hns3_get_ring_config(priv); | |
3610 | if (ret) { | |
3611 | ret = -ENOMEM; | |
3612 | goto out_get_ring_cfg; | |
3613 | } | |
3614 | ||
6cbd6d33 YL |
3615 | ret = hns3_nic_alloc_vector_data(priv); |
3616 | if (ret) { | |
3617 | ret = -ENOMEM; | |
3618 | goto out_alloc_vector_data; | |
3619 | } | |
3620 | ||
76ad4f0e S |
3621 | ret = hns3_nic_init_vector_data(priv); |
3622 | if (ret) { | |
3623 | ret = -ENOMEM; | |
3624 | goto out_init_vector_data; | |
3625 | } | |
3626 | ||
3627 | ret = hns3_init_all_ring(priv); | |
3628 | if (ret) { | |
3629 | ret = -ENOMEM; | |
3630 | goto out_init_ring_data; | |
3631 | } | |
3632 | ||
3633 | ret = register_netdev(netdev); | |
3634 | if (ret) { | |
3635 | dev_err(priv->dev, "probe register netdev fail!\n"); | |
3636 | goto out_reg_netdev_fail; | |
3637 | } | |
3638 | ||
337460de YL |
3639 | ret = hns3_client_start(handle); |
3640 | if (ret) { | |
3641 | dev_err(priv->dev, "hns3_client_start fail! ret=%d\n", ret); | |
3642 | goto out_reg_netdev_fail; | |
3643 | } | |
3644 | ||
986743db YL |
3645 | hns3_dcbnl_setup(handle); |
3646 | ||
a9556d8c | 3647 | hns3_dbg_init(handle); |
3648 | ||
bd975002 | 3649 | /* MTU range: (ETH_MIN_MTU(kernel default) - 9702) */ |
4ee09281 | 3650 | netdev->max_mtu = HNS3_MAX_MTU; |
a8e8b7ff | 3651 | |
352285f1 HT |
3652 | set_bit(HNS3_NIC_STATE_INITED, &priv->state); |
3653 | ||
76ad4f0e S |
3654 | return ret; |
3655 | ||
3656 | out_reg_netdev_fail: | |
3657 | out_init_ring_data: | |
3658 | (void)hns3_nic_uninit_vector_data(priv); | |
76ad4f0e | 3659 | out_init_vector_data: |
6cbd6d33 YL |
3660 | hns3_nic_dealloc_vector_data(priv); |
3661 | out_alloc_vector_data: | |
3662 | priv->ring_data = NULL; | |
76ad4f0e S |
3663 | out_get_ring_cfg: |
3664 | priv->ae_handle = NULL; | |
3665 | free_netdev(netdev); | |
3666 | return ret; | |
3667 | } | |
3668 | ||
3669 | static void hns3_client_uninit(struct hnae3_handle *handle, bool reset) | |
3670 | { | |
3671 | struct net_device *netdev = handle->kinfo.netdev; | |
3672 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
3673 | int ret; | |
3674 | ||
337460de YL |
3675 | hns3_client_stop(handle); |
3676 | ||
2c794374 JS |
3677 | hns3_remove_hw_addr(netdev); |
3678 | ||
76ad4f0e S |
3679 | if (netdev->reg_state != NETREG_UNINITIALIZED) |
3680 | unregister_netdev(netdev); | |
3681 | ||
352285f1 HT |
3682 | if (!test_and_clear_bit(HNS3_NIC_STATE_INITED, &priv->state)) { |
3683 | netdev_warn(netdev, "already uninitialized\n"); | |
3684 | goto out_netdev_free; | |
3685 | } | |
3686 | ||
c27ad61b JS |
3687 | hns3_del_all_fd_rules(netdev, true); |
3688 | ||
e32a805a FL |
3689 | hns3_force_clear_all_rx_ring(handle); |
3690 | ||
76ad4f0e S |
3691 | ret = hns3_nic_uninit_vector_data(priv); |
3692 | if (ret) | |
3693 | netdev_err(netdev, "uninit vector error\n"); | |
3694 | ||
6cbd6d33 YL |
3695 | ret = hns3_nic_dealloc_vector_data(priv); |
3696 | if (ret) | |
3697 | netdev_err(netdev, "dealloc vector error\n"); | |
3698 | ||
76ad4f0e S |
3699 | ret = hns3_uninit_all_ring(priv); |
3700 | if (ret) | |
3701 | netdev_err(netdev, "uninit ring error\n"); | |
3702 | ||
a2ddee8c YL |
3703 | hns3_put_ring_config(priv); |
3704 | ||
a9556d8c | 3705 | hns3_dbg_uninit(handle); |
3706 | ||
76ad4f0e S |
3707 | priv->ring_data = NULL; |
3708 | ||
352285f1 | 3709 | out_netdev_free: |
76ad4f0e S |
3710 | free_netdev(netdev); |
3711 | } | |
3712 | ||
3713 | static void hns3_link_status_change(struct hnae3_handle *handle, bool linkup) | |
3714 | { | |
3715 | struct net_device *netdev = handle->kinfo.netdev; | |
3716 | ||
3717 | if (!netdev) | |
3718 | return; | |
3719 | ||
3720 | if (linkup) { | |
3721 | netif_carrier_on(netdev); | |
3722 | netif_tx_wake_all_queues(netdev); | |
3723 | netdev_info(netdev, "link up\n"); | |
3724 | } else { | |
3725 | netif_carrier_off(netdev); | |
3726 | netif_tx_stop_all_queues(netdev); | |
3727 | netdev_info(netdev, "link down\n"); | |
3728 | } | |
3729 | } | |
3730 | ||
9df8f79a YL |
3731 | static int hns3_client_setup_tc(struct hnae3_handle *handle, u8 tc) |
3732 | { | |
3733 | struct hnae3_knic_private_info *kinfo = &handle->kinfo; | |
3734 | struct net_device *ndev = kinfo->netdev; | |
075cfdd6 | 3735 | bool if_running; |
9df8f79a | 3736 | int ret; |
9df8f79a YL |
3737 | |
3738 | if (tc > HNAE3_MAX_TC) | |
3739 | return -EINVAL; | |
3740 | ||
3741 | if (!ndev) | |
3742 | return -ENODEV; | |
3743 | ||
075cfdd6 CIK |
3744 | if_running = netif_running(ndev); |
3745 | ||
9df8f79a YL |
3746 | if (if_running) { |
3747 | (void)hns3_nic_net_stop(ndev); | |
3748 | msleep(100); | |
3749 | } | |
3750 | ||
3751 | ret = (kinfo->dcb_ops && kinfo->dcb_ops->map_update) ? | |
3752 | kinfo->dcb_ops->map_update(handle) : -EOPNOTSUPP; | |
3753 | if (ret) | |
3754 | goto err_out; | |
3755 | ||
9df8f79a YL |
3756 | ret = hns3_nic_set_real_num_queue(ndev); |
3757 | ||
3758 | err_out: | |
3759 | if (if_running) | |
3760 | (void)hns3_nic_net_open(ndev); | |
3761 | ||
3762 | return ret; | |
3763 | } | |
3764 | ||
abe62a63 | 3765 | static int hns3_recover_hw_addr(struct net_device *ndev) |
bb6b94a8 L |
3766 | { |
3767 | struct netdev_hw_addr_list *list; | |
3768 | struct netdev_hw_addr *ha, *tmp; | |
abe62a63 | 3769 | int ret = 0; |
bb6b94a8 L |
3770 | |
3771 | /* go through and sync uc_addr entries to the device */ | |
3772 | list = &ndev->uc; | |
abe62a63 HT |
3773 | list_for_each_entry_safe(ha, tmp, &list->list, list) { |
3774 | ret = hns3_nic_uc_sync(ndev, ha->addr); | |
3775 | if (ret) | |
3776 | return ret; | |
3777 | } | |
bb6b94a8 L |
3778 | |
3779 | /* go through and sync mc_addr entries to the device */ | |
3780 | list = &ndev->mc; | |
abe62a63 HT |
3781 | list_for_each_entry_safe(ha, tmp, &list->list, list) { |
3782 | ret = hns3_nic_mc_sync(ndev, ha->addr); | |
3783 | if (ret) | |
3784 | return ret; | |
3785 | } | |
3786 | ||
3787 | return ret; | |
bb6b94a8 L |
3788 | } |
3789 | ||
2c794374 JS |
3790 | static void hns3_remove_hw_addr(struct net_device *netdev) |
3791 | { | |
3792 | struct netdev_hw_addr_list *list; | |
3793 | struct netdev_hw_addr *ha, *tmp; | |
3794 | ||
3795 | hns3_nic_uc_unsync(netdev, netdev->dev_addr); | |
3796 | ||
3797 | /* go through and unsync uc_addr entries to the device */ | |
3798 | list = &netdev->uc; | |
3799 | list_for_each_entry_safe(ha, tmp, &list->list, list) | |
3800 | hns3_nic_uc_unsync(netdev, ha->addr); | |
3801 | ||
3802 | /* go through and unsync mc_addr entries to the device */ | |
3803 | list = &netdev->mc; | |
3804 | list_for_each_entry_safe(ha, tmp, &list->list, list) | |
3805 | if (ha->refcount > 1) | |
3806 | hns3_nic_mc_unsync(netdev, ha->addr); | |
3807 | } | |
3808 | ||
82172ec9 | 3809 | static void hns3_clear_tx_ring(struct hns3_enet_ring *ring) |
bb6b94a8 | 3810 | { |
82172ec9 | 3811 | while (ring->next_to_clean != ring->next_to_use) { |
e32a805a | 3812 | ring->desc[ring->next_to_clean].tx.bdtp_fe_sc_vld_ra_ri = 0; |
82172ec9 YL |
3813 | hns3_free_buffer_detach(ring, ring->next_to_clean); |
3814 | ring_ptr_move_fw(ring, next_to_clean); | |
3815 | } | |
3816 | } | |
3817 | ||
e32a805a FL |
3818 | static int hns3_clear_rx_ring(struct hns3_enet_ring *ring) |
3819 | { | |
3820 | struct hns3_desc_cb res_cbs; | |
3821 | int ret; | |
3822 | ||
3823 | while (ring->next_to_use != ring->next_to_clean) { | |
3824 | /* When a buffer is not reused, it's memory has been | |
3825 | * freed in hns3_handle_rx_bd or will be freed by | |
3826 | * stack, so we need to replace the buffer here. | |
3827 | */ | |
3828 | if (!ring->desc_cb[ring->next_to_use].reuse_flag) { | |
3829 | ret = hns3_reserve_buffer_map(ring, &res_cbs); | |
3830 | if (ret) { | |
3831 | u64_stats_update_begin(&ring->syncp); | |
3832 | ring->stats.sw_err_cnt++; | |
3833 | u64_stats_update_end(&ring->syncp); | |
3834 | /* if alloc new buffer fail, exit directly | |
3835 | * and reclear in up flow. | |
3836 | */ | |
3837 | netdev_warn(ring->tqp->handle->kinfo.netdev, | |
3838 | "reserve buffer map failed, ret = %d\n", | |
3839 | ret); | |
3840 | return ret; | |
3841 | } | |
3842 | hns3_replace_buffer(ring, ring->next_to_use, | |
3843 | &res_cbs); | |
3844 | } | |
3845 | ring_ptr_move_fw(ring, next_to_use); | |
3846 | } | |
3847 | ||
3848 | return 0; | |
3849 | } | |
3850 | ||
3851 | static void hns3_force_clear_rx_ring(struct hns3_enet_ring *ring) | |
82172ec9 | 3852 | { |
82172ec9 YL |
3853 | while (ring->next_to_use != ring->next_to_clean) { |
3854 | /* When a buffer is not reused, it's memory has been | |
3855 | * freed in hns3_handle_rx_bd or will be freed by | |
3856 | * stack, so only need to unmap the buffer here. | |
3857 | */ | |
3858 | if (!ring->desc_cb[ring->next_to_use].reuse_flag) { | |
3859 | hns3_unmap_buffer(ring, | |
3860 | &ring->desc_cb[ring->next_to_use]); | |
3861 | ring->desc_cb[ring->next_to_use].dma = 0; | |
3862 | } | |
3863 | ||
3864 | ring_ptr_move_fw(ring, next_to_use); | |
3865 | } | |
bb6b94a8 L |
3866 | } |
3867 | ||
e32a805a FL |
3868 | static void hns3_force_clear_all_rx_ring(struct hnae3_handle *h) |
3869 | { | |
3870 | struct net_device *ndev = h->kinfo.netdev; | |
3871 | struct hns3_nic_priv *priv = netdev_priv(ndev); | |
3872 | struct hns3_enet_ring *ring; | |
3873 | u32 i; | |
3874 | ||
3875 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
3876 | ring = priv->ring_data[i + h->kinfo.num_tqps].ring; | |
3877 | hns3_force_clear_rx_ring(ring); | |
3878 | } | |
3879 | } | |
3880 | ||
bb6b94a8 L |
3881 | static void hns3_clear_all_ring(struct hnae3_handle *h) |
3882 | { | |
3883 | struct net_device *ndev = h->kinfo.netdev; | |
3884 | struct hns3_nic_priv *priv = netdev_priv(ndev); | |
3885 | u32 i; | |
3886 | ||
3887 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
3888 | struct netdev_queue *dev_queue; | |
3889 | struct hns3_enet_ring *ring; | |
3890 | ||
3891 | ring = priv->ring_data[i].ring; | |
82172ec9 | 3892 | hns3_clear_tx_ring(ring); |
bb6b94a8 L |
3893 | dev_queue = netdev_get_tx_queue(ndev, |
3894 | priv->ring_data[i].queue_index); | |
3895 | netdev_tx_reset_queue(dev_queue); | |
3896 | ||
3897 | ring = priv->ring_data[i + h->kinfo.num_tqps].ring; | |
e32a805a FL |
3898 | /* Continue to clear other rings even if clearing some |
3899 | * rings failed. | |
3900 | */ | |
82172ec9 | 3901 | hns3_clear_rx_ring(ring); |
bb6b94a8 L |
3902 | } |
3903 | } | |
3904 | ||
e32a805a FL |
3905 | int hns3_nic_reset_all_ring(struct hnae3_handle *h) |
3906 | { | |
3907 | struct net_device *ndev = h->kinfo.netdev; | |
3908 | struct hns3_nic_priv *priv = netdev_priv(ndev); | |
3909 | struct hns3_enet_ring *rx_ring; | |
3910 | int i, j; | |
3911 | int ret; | |
3912 | ||
3913 | for (i = 0; i < h->kinfo.num_tqps; i++) { | |
abe62a63 HT |
3914 | ret = h->ae_algo->ops->reset_queue(h, i); |
3915 | if (ret) | |
3916 | return ret; | |
3917 | ||
e32a805a FL |
3918 | hns3_init_ring_hw(priv->ring_data[i].ring); |
3919 | ||
3920 | /* We need to clear tx ring here because self test will | |
3921 | * use the ring and will not run down before up | |
3922 | */ | |
3923 | hns3_clear_tx_ring(priv->ring_data[i].ring); | |
3924 | priv->ring_data[i].ring->next_to_clean = 0; | |
3925 | priv->ring_data[i].ring->next_to_use = 0; | |
3926 | ||
3927 | rx_ring = priv->ring_data[i + h->kinfo.num_tqps].ring; | |
3928 | hns3_init_ring_hw(rx_ring); | |
3929 | ret = hns3_clear_rx_ring(rx_ring); | |
3930 | if (ret) | |
3931 | return ret; | |
3932 | ||
3933 | /* We can not know the hardware head and tail when this | |
3934 | * function is called in reset flow, so we reuse all desc. | |
3935 | */ | |
3936 | for (j = 0; j < rx_ring->desc_num; j++) | |
3937 | hns3_reuse_buffer(rx_ring, j); | |
3938 | ||
3939 | rx_ring->next_to_clean = 0; | |
3940 | rx_ring->next_to_use = 0; | |
3941 | } | |
3942 | ||
fe46c859 YL |
3943 | hns3_init_tx_ring_tc(priv); |
3944 | ||
e32a805a FL |
3945 | return 0; |
3946 | } | |
3947 | ||
0378eccc HT |
3948 | static void hns3_store_coal(struct hns3_nic_priv *priv) |
3949 | { | |
3950 | /* ethtool only support setting and querying one coal | |
3951 | * configuation for now, so save the vector 0' coal | |
3952 | * configuation here in order to restore it. | |
3953 | */ | |
3954 | memcpy(&priv->tx_coal, &priv->tqp_vector[0].tx_group.coal, | |
3955 | sizeof(struct hns3_enet_coalesce)); | |
3956 | memcpy(&priv->rx_coal, &priv->tqp_vector[0].rx_group.coal, | |
3957 | sizeof(struct hns3_enet_coalesce)); | |
3958 | } | |
3959 | ||
3960 | static void hns3_restore_coal(struct hns3_nic_priv *priv) | |
3961 | { | |
3962 | u16 vector_num = priv->vector_num; | |
3963 | int i; | |
3964 | ||
3965 | for (i = 0; i < vector_num; i++) { | |
3966 | memcpy(&priv->tqp_vector[i].tx_group.coal, &priv->tx_coal, | |
3967 | sizeof(struct hns3_enet_coalesce)); | |
3968 | memcpy(&priv->tqp_vector[i].rx_group.coal, &priv->rx_coal, | |
3969 | sizeof(struct hns3_enet_coalesce)); | |
3970 | } | |
3971 | } | |
3972 | ||
bb6b94a8 L |
3973 | static int hns3_reset_notify_down_enet(struct hnae3_handle *handle) |
3974 | { | |
7e68177b | 3975 | struct hnae3_ae_dev *ae_dev = pci_get_drvdata(handle->pdev); |
bb6b94a8 L |
3976 | struct hnae3_knic_private_info *kinfo = &handle->kinfo; |
3977 | struct net_device *ndev = kinfo->netdev; | |
3a11f446 HT |
3978 | struct hns3_nic_priv *priv = netdev_priv(ndev); |
3979 | ||
3980 | if (test_and_set_bit(HNS3_NIC_STATE_RESETTING, &priv->state)) | |
3981 | return 0; | |
bb6b94a8 | 3982 | |
7e68177b HT |
3983 | /* it is cumbersome for hardware to pick-and-choose entries for deletion |
3984 | * from table space. Hence, for function reset software intervention is | |
3985 | * required to delete the entries | |
3986 | */ | |
3987 | if (hns3_dev_ongoing_func_reset(ae_dev)) { | |
3988 | hns3_remove_hw_addr(ndev); | |
3989 | hns3_del_all_fd_rules(ndev, false); | |
3990 | } | |
3991 | ||
bb6b94a8 | 3992 | if (!netif_running(ndev)) |
196b8760 | 3993 | return 0; |
bb6b94a8 L |
3994 | |
3995 | return hns3_nic_net_stop(ndev); | |
3996 | } | |
3997 | ||
3998 | static int hns3_reset_notify_up_enet(struct hnae3_handle *handle) | |
3999 | { | |
4000 | struct hnae3_knic_private_info *kinfo = &handle->kinfo; | |
3a11f446 | 4001 | struct hns3_nic_priv *priv = netdev_priv(kinfo->netdev); |
bb6b94a8 L |
4002 | int ret = 0; |
4003 | ||
ac2dca6b HT |
4004 | clear_bit(HNS3_NIC_STATE_RESETTING, &priv->state); |
4005 | ||
bb6b94a8 | 4006 | if (netif_running(kinfo->netdev)) { |
ac2dca6b | 4007 | ret = hns3_nic_net_open(kinfo->netdev); |
bb6b94a8 | 4008 | if (ret) { |
ac2dca6b | 4009 | set_bit(HNS3_NIC_STATE_RESETTING, &priv->state); |
bb6b94a8 L |
4010 | netdev_err(kinfo->netdev, |
4011 | "hns net up fail, ret=%d!\n", ret); | |
4012 | return ret; | |
4013 | } | |
bb6b94a8 L |
4014 | } |
4015 | ||
4016 | return ret; | |
4017 | } | |
4018 | ||
4019 | static int hns3_reset_notify_init_enet(struct hnae3_handle *handle) | |
4020 | { | |
4021 | struct net_device *netdev = handle->kinfo.netdev; | |
4022 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
ad94a397 | 4023 | bool vlan_filter_enable; |
bb6b94a8 L |
4024 | int ret; |
4025 | ||
abe62a63 HT |
4026 | ret = hns3_init_mac_addr(netdev, false); |
4027 | if (ret) | |
4028 | return ret; | |
4029 | ||
4030 | ret = hns3_recover_hw_addr(netdev); | |
4031 | if (ret) | |
4032 | return ret; | |
4033 | ||
4034 | ret = hns3_update_promisc_mode(netdev, handle->netdev_flags); | |
4035 | if (ret) | |
4036 | return ret; | |
4037 | ||
ad94a397 JS |
4038 | vlan_filter_enable = netdev->flags & IFF_PROMISC ? false : true; |
4039 | hns3_enable_vlan_filter(netdev, vlan_filter_enable); | |
4040 | ||
103ce052 | 4041 | /* Hardware table is only clear when pf resets */ |
abe62a63 HT |
4042 | if (!(handle->flags & HNAE3_SUPPORT_VF)) { |
4043 | ret = hns3_restore_vlan(netdev); | |
8eb0e623 HT |
4044 | if (ret) |
4045 | return ret; | |
abe62a63 | 4046 | } |
103ce052 | 4047 | |
abe62a63 HT |
4048 | ret = hns3_restore_fd_rules(netdev); |
4049 | if (ret) | |
4050 | return ret; | |
7ce98982 | 4051 | |
bb6b94a8 L |
4052 | /* Carrier off reporting is important to ethtool even BEFORE open */ |
4053 | netif_carrier_off(netdev); | |
4054 | ||
1c92981c HT |
4055 | ret = hns3_nic_alloc_vector_data(priv); |
4056 | if (ret) | |
4057 | return ret; | |
4058 | ||
0378eccc HT |
4059 | hns3_restore_coal(priv); |
4060 | ||
bb6b94a8 L |
4061 | ret = hns3_nic_init_vector_data(priv); |
4062 | if (ret) | |
1c92981c | 4063 | goto err_dealloc_vector; |
bb6b94a8 L |
4064 | |
4065 | ret = hns3_init_all_ring(priv); | |
1c92981c HT |
4066 | if (ret) |
4067 | goto err_uninit_vector; | |
bb6b94a8 | 4068 | |
352285f1 HT |
4069 | set_bit(HNS3_NIC_STATE_INITED, &priv->state); |
4070 | ||
1c92981c HT |
4071 | return ret; |
4072 | ||
4073 | err_uninit_vector: | |
4074 | hns3_nic_uninit_vector_data(priv); | |
4075 | priv->ring_data = NULL; | |
4076 | err_dealloc_vector: | |
4077 | hns3_nic_dealloc_vector_data(priv); | |
4078 | ||
bb6b94a8 L |
4079 | return ret; |
4080 | } | |
4081 | ||
4082 | static int hns3_reset_notify_uninit_enet(struct hnae3_handle *handle) | |
4083 | { | |
4084 | struct net_device *netdev = handle->kinfo.netdev; | |
4085 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
4086 | int ret; | |
4087 | ||
352285f1 HT |
4088 | if (!test_bit(HNS3_NIC_STATE_INITED, &priv->state)) { |
4089 | netdev_warn(netdev, "already uninitialized\n"); | |
4090 | return 0; | |
4091 | } | |
4092 | ||
e32a805a | 4093 | hns3_force_clear_all_rx_ring(handle); |
bb6b94a8 L |
4094 | |
4095 | ret = hns3_nic_uninit_vector_data(priv); | |
4096 | if (ret) { | |
4097 | netdev_err(netdev, "uninit vector error\n"); | |
4098 | return ret; | |
4099 | } | |
4100 | ||
0378eccc HT |
4101 | hns3_store_coal(priv); |
4102 | ||
1c92981c HT |
4103 | ret = hns3_nic_dealloc_vector_data(priv); |
4104 | if (ret) | |
4105 | netdev_err(netdev, "dealloc vector error\n"); | |
4106 | ||
bb6b94a8 L |
4107 | ret = hns3_uninit_all_ring(priv); |
4108 | if (ret) | |
4109 | netdev_err(netdev, "uninit ring error\n"); | |
4110 | ||
352285f1 HT |
4111 | clear_bit(HNS3_NIC_STATE_INITED, &priv->state); |
4112 | ||
bb6b94a8 L |
4113 | return ret; |
4114 | } | |
4115 | ||
4116 | static int hns3_reset_notify(struct hnae3_handle *handle, | |
4117 | enum hnae3_reset_notify_type type) | |
4118 | { | |
4119 | int ret = 0; | |
4120 | ||
4121 | switch (type) { | |
4122 | case HNAE3_UP_CLIENT: | |
741e1778 SM |
4123 | ret = hns3_reset_notify_up_enet(handle); |
4124 | break; | |
bb6b94a8 L |
4125 | case HNAE3_DOWN_CLIENT: |
4126 | ret = hns3_reset_notify_down_enet(handle); | |
4127 | break; | |
4128 | case HNAE3_INIT_CLIENT: | |
4129 | ret = hns3_reset_notify_init_enet(handle); | |
4130 | break; | |
4131 | case HNAE3_UNINIT_CLIENT: | |
4132 | ret = hns3_reset_notify_uninit_enet(handle); | |
4133 | break; | |
4134 | default: | |
4135 | break; | |
4136 | } | |
4137 | ||
4138 | return ret; | |
4139 | } | |
4140 | ||
0378eccc | 4141 | static int hns3_modify_tqp_num(struct net_device *netdev, u16 new_tqp_num) |
f1f779ce PL |
4142 | { |
4143 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
4144 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
4145 | int ret; | |
4146 | ||
4147 | ret = h->ae_algo->ops->set_channels(h, new_tqp_num); | |
4148 | if (ret) | |
4149 | return ret; | |
4150 | ||
4151 | ret = hns3_get_ring_config(priv); | |
4152 | if (ret) | |
4153 | return ret; | |
4154 | ||
6cbd6d33 YL |
4155 | ret = hns3_nic_alloc_vector_data(priv); |
4156 | if (ret) | |
4157 | goto err_alloc_vector; | |
4158 | ||
0378eccc | 4159 | hns3_restore_coal(priv); |
351dad5e | 4160 | |
f1f779ce PL |
4161 | ret = hns3_nic_init_vector_data(priv); |
4162 | if (ret) | |
4163 | goto err_uninit_vector; | |
4164 | ||
4165 | ret = hns3_init_all_ring(priv); | |
4166 | if (ret) | |
4167 | goto err_put_ring; | |
4168 | ||
4169 | return 0; | |
4170 | ||
4171 | err_put_ring: | |
4172 | hns3_put_ring_config(priv); | |
4173 | err_uninit_vector: | |
4174 | hns3_nic_uninit_vector_data(priv); | |
6cbd6d33 YL |
4175 | err_alloc_vector: |
4176 | hns3_nic_dealloc_vector_data(priv); | |
f1f779ce PL |
4177 | return ret; |
4178 | } | |
4179 | ||
4180 | static int hns3_adjust_tqps_num(u8 num_tc, u32 new_tqp_num) | |
4181 | { | |
4182 | return (new_tqp_num / num_tc) * num_tc; | |
4183 | } | |
4184 | ||
4185 | int hns3_set_channels(struct net_device *netdev, | |
4186 | struct ethtool_channels *ch) | |
4187 | { | |
4188 | struct hns3_nic_priv *priv = netdev_priv(netdev); | |
4189 | struct hnae3_handle *h = hns3_get_handle(netdev); | |
4190 | struct hnae3_knic_private_info *kinfo = &h->kinfo; | |
4191 | bool if_running = netif_running(netdev); | |
4192 | u32 new_tqp_num = ch->combined_count; | |
4193 | u16 org_tqp_num; | |
4194 | int ret; | |
4195 | ||
4196 | if (ch->rx_count || ch->tx_count) | |
4197 | return -EINVAL; | |
4198 | ||
2d7187ce | 4199 | if (new_tqp_num > hns3_get_max_available_channels(h) || |
f1f779ce PL |
4200 | new_tqp_num < kinfo->num_tc) { |
4201 | dev_err(&netdev->dev, | |
4202 | "Change tqps fail, the tqp range is from %d to %d", | |
4203 | kinfo->num_tc, | |
2d7187ce | 4204 | hns3_get_max_available_channels(h)); |
f1f779ce PL |
4205 | return -EINVAL; |
4206 | } | |
4207 | ||
4208 | new_tqp_num = hns3_adjust_tqps_num(kinfo->num_tc, new_tqp_num); | |
4209 | if (kinfo->num_tqps == new_tqp_num) | |
4210 | return 0; | |
4211 | ||
4212 | if (if_running) | |
41efd6b1 | 4213 | hns3_nic_net_stop(netdev); |
f1f779ce | 4214 | |
f1f779ce PL |
4215 | ret = hns3_nic_uninit_vector_data(priv); |
4216 | if (ret) { | |
4217 | dev_err(&netdev->dev, | |
4218 | "Unbind vector with tqp fail, nothing is changed"); | |
4219 | goto open_netdev; | |
4220 | } | |
4221 | ||
0378eccc | 4222 | hns3_store_coal(priv); |
351dad5e | 4223 | |
6cbd6d33 YL |
4224 | hns3_nic_dealloc_vector_data(priv); |
4225 | ||
f1f779ce | 4226 | hns3_uninit_all_ring(priv); |
a2ddee8c | 4227 | hns3_put_ring_config(priv); |
f1f779ce PL |
4228 | |
4229 | org_tqp_num = h->kinfo.num_tqps; | |
0378eccc | 4230 | ret = hns3_modify_tqp_num(netdev, new_tqp_num); |
f1f779ce | 4231 | if (ret) { |
0378eccc | 4232 | ret = hns3_modify_tqp_num(netdev, org_tqp_num); |
f1f779ce PL |
4233 | if (ret) { |
4234 | /* If revert to old tqp failed, fatal error occurred */ | |
4235 | dev_err(&netdev->dev, | |
4236 | "Revert to old tqp num fail, ret=%d", ret); | |
4237 | return ret; | |
4238 | } | |
4239 | dev_info(&netdev->dev, | |
4240 | "Change tqp num fail, Revert to old tqp num"); | |
4241 | } | |
4242 | ||
4243 | open_netdev: | |
4244 | if (if_running) | |
41efd6b1 | 4245 | hns3_nic_net_open(netdev); |
f1f779ce PL |
4246 | |
4247 | return ret; | |
4248 | } | |
4249 | ||
1db9b1bf | 4250 | static const struct hnae3_client_ops client_ops = { |
76ad4f0e S |
4251 | .init_instance = hns3_client_init, |
4252 | .uninit_instance = hns3_client_uninit, | |
4253 | .link_status_change = hns3_link_status_change, | |
9df8f79a | 4254 | .setup_tc = hns3_client_setup_tc, |
bb6b94a8 | 4255 | .reset_notify = hns3_reset_notify, |
76ad4f0e S |
4256 | }; |
4257 | ||
4258 | /* hns3_init_module - Driver registration routine | |
4259 | * hns3_init_module is the first routine called when the driver is | |
4260 | * loaded. All it does is register with the PCI subsystem. | |
4261 | */ | |
4262 | static int __init hns3_init_module(void) | |
4263 | { | |
4264 | int ret; | |
4265 | ||
4266 | pr_info("%s: %s - version\n", hns3_driver_name, hns3_driver_string); | |
4267 | pr_info("%s: %s\n", hns3_driver_name, hns3_copyright); | |
4268 | ||
4269 | client.type = HNAE3_CLIENT_KNIC; | |
4270 | snprintf(client.name, HNAE3_CLIENT_NAME_LENGTH - 1, "%s", | |
4271 | hns3_driver_name); | |
4272 | ||
4273 | client.ops = &client_ops; | |
4274 | ||
dadc9935 XW |
4275 | INIT_LIST_HEAD(&client.node); |
4276 | ||
a9556d8c | 4277 | hns3_dbg_register_debugfs(hns3_driver_name); |
4278 | ||
76ad4f0e S |
4279 | ret = hnae3_register_client(&client); |
4280 | if (ret) | |
a9556d8c | 4281 | goto err_reg_client; |
76ad4f0e S |
4282 | |
4283 | ret = pci_register_driver(&hns3_driver); | |
4284 | if (ret) | |
a9556d8c | 4285 | goto err_reg_driver; |
76ad4f0e S |
4286 | |
4287 | return ret; | |
a9556d8c | 4288 | |
4289 | err_reg_driver: | |
4290 | hnae3_unregister_client(&client); | |
4291 | err_reg_client: | |
4292 | hns3_dbg_unregister_debugfs(); | |
4293 | return ret; | |
76ad4f0e S |
4294 | } |
4295 | module_init(hns3_init_module); | |
4296 | ||
4297 | /* hns3_exit_module - Driver exit cleanup routine | |
4298 | * hns3_exit_module is called just before the driver is removed | |
4299 | * from memory. | |
4300 | */ | |
4301 | static void __exit hns3_exit_module(void) | |
4302 | { | |
4303 | pci_unregister_driver(&hns3_driver); | |
4304 | hnae3_unregister_client(&client); | |
a9556d8c | 4305 | hns3_dbg_unregister_debugfs(); |
76ad4f0e S |
4306 | } |
4307 | module_exit(hns3_exit_module); | |
4308 | ||
4309 | MODULE_DESCRIPTION("HNS3: Hisilicon Ethernet Driver"); | |
4310 | MODULE_AUTHOR("Huawei Tech. Co., Ltd."); | |
4311 | MODULE_LICENSE("GPL"); | |
4312 | MODULE_ALIAS("pci:hns-nic"); | |
4786ad87 | 4313 | MODULE_VERSION(HNS3_MOD_VERSION); |