This source file includes following definitions.
- aq_vec_poll
- aq_vec_alloc
- aq_vec_init
- aq_vec_start
- aq_vec_stop
- aq_vec_deinit
- aq_vec_free
- aq_vec_isr
- aq_vec_isr_legacy
- aq_vec_get_affinity_mask
- aq_vec_add_stats
- aq_vec_get_sw_stats
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11 #include "aq_vec.h"
12 #include "aq_nic.h"
13 #include "aq_ring.h"
14 #include "aq_hw.h"
15
16 #include <linux/netdevice.h>
17
18 struct aq_vec_s {
19 const struct aq_hw_ops *aq_hw_ops;
20 struct aq_hw_s *aq_hw;
21 struct aq_nic_s *aq_nic;
22 unsigned int tx_rings;
23 unsigned int rx_rings;
24 struct aq_ring_param_s aq_ring_param;
25 struct napi_struct napi;
26 struct aq_ring_s ring[AQ_CFG_TCS_MAX][2];
27 };
28
29 #define AQ_VEC_TX_ID 0
30 #define AQ_VEC_RX_ID 1
31
32 static int aq_vec_poll(struct napi_struct *napi, int budget)
33 {
34 struct aq_vec_s *self = container_of(napi, struct aq_vec_s, napi);
35 unsigned int sw_tail_old = 0U;
36 struct aq_ring_s *ring = NULL;
37 bool was_tx_cleaned = true;
38 unsigned int i = 0U;
39 int work_done = 0;
40 int err = 0;
41
42 if (!self) {
43 err = -EINVAL;
44 } else {
45 for (i = 0U, ring = self->ring[0];
46 self->tx_rings > i; ++i, ring = self->ring[i]) {
47 if (self->aq_hw_ops->hw_ring_tx_head_update) {
48 err = self->aq_hw_ops->hw_ring_tx_head_update(
49 self->aq_hw,
50 &ring[AQ_VEC_TX_ID]);
51 if (err < 0)
52 goto err_exit;
53 }
54
55 if (ring[AQ_VEC_TX_ID].sw_head !=
56 ring[AQ_VEC_TX_ID].hw_head) {
57 was_tx_cleaned = aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
58 aq_ring_update_queue_state(&ring[AQ_VEC_TX_ID]);
59 }
60
61 err = self->aq_hw_ops->hw_ring_rx_receive(self->aq_hw,
62 &ring[AQ_VEC_RX_ID]);
63 if (err < 0)
64 goto err_exit;
65
66 if (ring[AQ_VEC_RX_ID].sw_head !=
67 ring[AQ_VEC_RX_ID].hw_head) {
68 err = aq_ring_rx_clean(&ring[AQ_VEC_RX_ID],
69 napi,
70 &work_done,
71 budget - work_done);
72 if (err < 0)
73 goto err_exit;
74
75 sw_tail_old = ring[AQ_VEC_RX_ID].sw_tail;
76
77 err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
78 if (err < 0)
79 goto err_exit;
80
81 err = self->aq_hw_ops->hw_ring_rx_fill(
82 self->aq_hw,
83 &ring[AQ_VEC_RX_ID], sw_tail_old);
84 if (err < 0)
85 goto err_exit;
86 }
87 }
88
89 err_exit:
90 if (!was_tx_cleaned)
91 work_done = budget;
92
93 if (work_done < budget) {
94 napi_complete_done(napi, work_done);
95 self->aq_hw_ops->hw_irq_enable(self->aq_hw,
96 1U << self->aq_ring_param.vec_idx);
97 }
98 }
99
100 return work_done;
101 }
102
103 struct aq_vec_s *aq_vec_alloc(struct aq_nic_s *aq_nic, unsigned int idx,
104 struct aq_nic_cfg_s *aq_nic_cfg)
105 {
106 struct aq_vec_s *self = NULL;
107 struct aq_ring_s *ring = NULL;
108 unsigned int i = 0U;
109 int err = 0;
110
111 self = kzalloc(sizeof(*self), GFP_KERNEL);
112 if (!self) {
113 err = -ENOMEM;
114 goto err_exit;
115 }
116
117 self->aq_nic = aq_nic;
118 self->aq_ring_param.vec_idx = idx;
119 self->aq_ring_param.cpu =
120 idx + aq_nic_cfg->aq_rss.base_cpu_number;
121
122 cpumask_set_cpu(self->aq_ring_param.cpu,
123 &self->aq_ring_param.affinity_mask);
124
125 self->tx_rings = 0;
126 self->rx_rings = 0;
127
128 netif_napi_add(aq_nic_get_ndev(aq_nic), &self->napi,
129 aq_vec_poll, AQ_CFG_NAPI_WEIGHT);
130
131 for (i = 0; i < aq_nic_cfg->tcs; ++i) {
132 unsigned int idx_ring = AQ_NIC_TCVEC2RING(self->nic,
133 self->tx_rings,
134 self->aq_ring_param.vec_idx);
135
136 ring = aq_ring_tx_alloc(&self->ring[i][AQ_VEC_TX_ID], aq_nic,
137 idx_ring, aq_nic_cfg);
138 if (!ring) {
139 err = -ENOMEM;
140 goto err_exit;
141 }
142
143 ++self->tx_rings;
144
145 aq_nic_set_tx_ring(aq_nic, idx_ring, ring);
146
147 ring = aq_ring_rx_alloc(&self->ring[i][AQ_VEC_RX_ID], aq_nic,
148 idx_ring, aq_nic_cfg);
149 if (!ring) {
150 err = -ENOMEM;
151 goto err_exit;
152 }
153
154 ++self->rx_rings;
155 }
156
157 err_exit:
158 if (err < 0) {
159 aq_vec_free(self);
160 self = NULL;
161 }
162 return self;
163 }
164
165 int aq_vec_init(struct aq_vec_s *self, const struct aq_hw_ops *aq_hw_ops,
166 struct aq_hw_s *aq_hw)
167 {
168 struct aq_ring_s *ring = NULL;
169 unsigned int i = 0U;
170 int err = 0;
171
172 self->aq_hw_ops = aq_hw_ops;
173 self->aq_hw = aq_hw;
174
175 for (i = 0U, ring = self->ring[0];
176 self->tx_rings > i; ++i, ring = self->ring[i]) {
177 err = aq_ring_init(&ring[AQ_VEC_TX_ID]);
178 if (err < 0)
179 goto err_exit;
180
181 err = self->aq_hw_ops->hw_ring_tx_init(self->aq_hw,
182 &ring[AQ_VEC_TX_ID],
183 &self->aq_ring_param);
184 if (err < 0)
185 goto err_exit;
186
187 err = aq_ring_init(&ring[AQ_VEC_RX_ID]);
188 if (err < 0)
189 goto err_exit;
190
191 err = self->aq_hw_ops->hw_ring_rx_init(self->aq_hw,
192 &ring[AQ_VEC_RX_ID],
193 &self->aq_ring_param);
194 if (err < 0)
195 goto err_exit;
196
197 err = aq_ring_rx_fill(&ring[AQ_VEC_RX_ID]);
198 if (err < 0)
199 goto err_exit;
200
201 err = self->aq_hw_ops->hw_ring_rx_fill(self->aq_hw,
202 &ring[AQ_VEC_RX_ID], 0U);
203 if (err < 0)
204 goto err_exit;
205 }
206
207 err_exit:
208 return err;
209 }
210
211 int aq_vec_start(struct aq_vec_s *self)
212 {
213 struct aq_ring_s *ring = NULL;
214 unsigned int i = 0U;
215 int err = 0;
216
217 for (i = 0U, ring = self->ring[0];
218 self->tx_rings > i; ++i, ring = self->ring[i]) {
219 err = self->aq_hw_ops->hw_ring_tx_start(self->aq_hw,
220 &ring[AQ_VEC_TX_ID]);
221 if (err < 0)
222 goto err_exit;
223
224 err = self->aq_hw_ops->hw_ring_rx_start(self->aq_hw,
225 &ring[AQ_VEC_RX_ID]);
226 if (err < 0)
227 goto err_exit;
228 }
229
230 napi_enable(&self->napi);
231
232 err_exit:
233 return err;
234 }
235
236 void aq_vec_stop(struct aq_vec_s *self)
237 {
238 struct aq_ring_s *ring = NULL;
239 unsigned int i = 0U;
240
241 for (i = 0U, ring = self->ring[0];
242 self->tx_rings > i; ++i, ring = self->ring[i]) {
243 self->aq_hw_ops->hw_ring_tx_stop(self->aq_hw,
244 &ring[AQ_VEC_TX_ID]);
245
246 self->aq_hw_ops->hw_ring_rx_stop(self->aq_hw,
247 &ring[AQ_VEC_RX_ID]);
248 }
249
250 napi_disable(&self->napi);
251 }
252
253 void aq_vec_deinit(struct aq_vec_s *self)
254 {
255 struct aq_ring_s *ring = NULL;
256 unsigned int i = 0U;
257
258 if (!self)
259 goto err_exit;
260
261 for (i = 0U, ring = self->ring[0];
262 self->tx_rings > i; ++i, ring = self->ring[i]) {
263 aq_ring_tx_clean(&ring[AQ_VEC_TX_ID]);
264 aq_ring_rx_deinit(&ring[AQ_VEC_RX_ID]);
265 }
266 err_exit:;
267 }
268
269 void aq_vec_free(struct aq_vec_s *self)
270 {
271 struct aq_ring_s *ring = NULL;
272 unsigned int i = 0U;
273
274 if (!self)
275 goto err_exit;
276
277 for (i = 0U, ring = self->ring[0];
278 self->tx_rings > i; ++i, ring = self->ring[i]) {
279 aq_ring_free(&ring[AQ_VEC_TX_ID]);
280 aq_ring_free(&ring[AQ_VEC_RX_ID]);
281 }
282
283 netif_napi_del(&self->napi);
284
285 kfree(self);
286
287 err_exit:;
288 }
289
290 irqreturn_t aq_vec_isr(int irq, void *private)
291 {
292 struct aq_vec_s *self = private;
293 int err = 0;
294
295 if (!self) {
296 err = -EINVAL;
297 goto err_exit;
298 }
299 napi_schedule(&self->napi);
300
301 err_exit:
302 return err >= 0 ? IRQ_HANDLED : IRQ_NONE;
303 }
304
305 irqreturn_t aq_vec_isr_legacy(int irq, void *private)
306 {
307 struct aq_vec_s *self = private;
308 u64 irq_mask = 0U;
309 int err;
310
311 if (!self)
312 return IRQ_NONE;
313 err = self->aq_hw_ops->hw_irq_read(self->aq_hw, &irq_mask);
314 if (err < 0)
315 return IRQ_NONE;
316
317 if (irq_mask) {
318 self->aq_hw_ops->hw_irq_disable(self->aq_hw,
319 1U << self->aq_ring_param.vec_idx);
320 napi_schedule(&self->napi);
321 } else {
322 self->aq_hw_ops->hw_irq_enable(self->aq_hw, 1U);
323 return IRQ_NONE;
324 }
325
326 return IRQ_HANDLED;
327 }
328
329 cpumask_t *aq_vec_get_affinity_mask(struct aq_vec_s *self)
330 {
331 return &self->aq_ring_param.affinity_mask;
332 }
333
334 void aq_vec_add_stats(struct aq_vec_s *self,
335 struct aq_ring_stats_rx_s *stats_rx,
336 struct aq_ring_stats_tx_s *stats_tx)
337 {
338 struct aq_ring_s *ring = NULL;
339 unsigned int r = 0U;
340
341 for (r = 0U, ring = self->ring[0];
342 self->tx_rings > r; ++r, ring = self->ring[r]) {
343 struct aq_ring_stats_tx_s *tx = &ring[AQ_VEC_TX_ID].stats.tx;
344 struct aq_ring_stats_rx_s *rx = &ring[AQ_VEC_RX_ID].stats.rx;
345
346 stats_rx->packets += rx->packets;
347 stats_rx->bytes += rx->bytes;
348 stats_rx->errors += rx->errors;
349 stats_rx->jumbo_packets += rx->jumbo_packets;
350 stats_rx->lro_packets += rx->lro_packets;
351 stats_rx->pg_losts += rx->pg_losts;
352 stats_rx->pg_flips += rx->pg_flips;
353 stats_rx->pg_reuses += rx->pg_reuses;
354
355 stats_tx->packets += tx->packets;
356 stats_tx->bytes += tx->bytes;
357 stats_tx->errors += tx->errors;
358 stats_tx->queue_restarts += tx->queue_restarts;
359 }
360 }
361
362 int aq_vec_get_sw_stats(struct aq_vec_s *self, u64 *data, unsigned int *p_count)
363 {
364 unsigned int count = 0U;
365 struct aq_ring_stats_rx_s stats_rx;
366 struct aq_ring_stats_tx_s stats_tx;
367
368 memset(&stats_rx, 0U, sizeof(struct aq_ring_stats_rx_s));
369 memset(&stats_tx, 0U, sizeof(struct aq_ring_stats_tx_s));
370 aq_vec_add_stats(self, &stats_rx, &stats_tx);
371
372
373
374 data[count] += stats_rx.packets;
375 data[++count] += stats_tx.packets;
376 data[++count] += stats_tx.queue_restarts;
377 data[++count] += stats_rx.jumbo_packets;
378 data[++count] += stats_rx.lro_packets;
379 data[++count] += stats_rx.errors;
380
381 if (p_count)
382 *p_count = ++count;
383
384 return 0;
385 }