aboutsummaryrefslogtreecommitdiffstats
path: root/src/plugins/avf/avf.h
blob: c4c0c13ebb9a128578071079250436e1daf64a68 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
185
186
187
188
189
190
191
192
193
194
195
196
197
198
199
200
201
202
203
204
205
206
207
208
209
210
211
212
213
214
215
216
217
218
219
220
221
222
223
224
225
226
227
228
229
230
231
232
233
234
235
236
237
238
239
240
241
242
243
244
245
246
247
248
249
250
251
252
253
254
255
256
257
258
259
260
261
262
263
264
265
266
267
268
269
270
271
272
273
274
275
276
277
278
279
280
281
282
283
284
285
286
287
288
289
290
291
292
293
294
295
296
297
298
299
300
301
302
303
304
305
306
307
308
309
310
311
312
313
314
315
316
317
318
319
320
321
322
323
324
325
326
327
328
329
330
331
332
333
334
335
336
337
338
339
340
341
342
343
344
345
346
347
348
349
350
351
352
353
354
355
356
357
358
359
360
361
362
363
364
/*
 *------------------------------------------------------------------
 * Copyright (c) 2018 Cisco and/or its affiliates.
 * Licensed under the Apache License, Version 2.0 (the "License");
 * you may not use this file except in compliance with the License.
 * You may obtain a copy of the License at:
 *
 *     http://www.apache.org/licenses/LICENSE-2.0
 *
 * Unless required by applicable law or agreed to in writing, software
 * distributed under the License is distributed on an "AS IS" BASIS,
 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
 * See the License for the specific language governing permissions and
 * limitations under the License.
 *------------------------------------------------------------------
 */

#ifndef _AVF_H_
#define _AVF_H_

#include <avf/virtchnl.h>

#include <vlib/log.h>

#define AVF_AQ_ENQ_SUSPEND_TIME		50e-6
#define AVF_AQ_ENQ_MAX_WAIT_TIME	250e-3

#define AVF_RESET_SUSPEND_TIME		20e-3
#define AVF_RESET_MAX_WAIT_TIME		1

#define AVF_SEND_TO_PF_SUSPEND_TIME	10e-3
#define AVF_SEND_TO_PF_MAX_WAIT_TIME	1

#define AVF_RXD_STATUS(x)		(1ULL << x)
#define AVF_RXD_STATUS_DD		AVF_RXD_STATUS(0)
#define AVF_RXD_STATUS_EOP		AVF_RXD_STATUS(1)
#define AVF_RXD_ERROR_SHIFT		19
#define AVF_RXD_PTYPE_SHIFT		30
#define AVF_RXD_LEN_SHIFT		38
#define AVF_RX_MAX_DESC_IN_CHAIN	5

#define AVF_RXD_ERROR_IPE		(1ULL << (AVF_RXD_ERROR_SHIFT + 3))
#define AVF_RXD_ERROR_L4E		(1ULL << (AVF_RXD_ERROR_SHIFT + 4))

#define AVF_TXD_CMD(x)			(1 << (x + 4))
#define AVF_TXD_CMD_EOP			AVF_TXD_CMD(0)
#define AVF_TXD_CMD_RS			AVF_TXD_CMD(1)
#define AVF_TXD_CMD_RSV			AVF_TXD_CMD(2)

#define avf_log_err(dev, f, ...)                        \
  vlib_log (VLIB_LOG_LEVEL_ERR, avf_main.log_class, "%U: " f, \
            format_vlib_pci_addr, &dev->pci_addr, \
            ## __VA_ARGS__)

#define avf_log_warn(dev, f, ...)                        \
  vlib_log (VLIB_LOG_LEVEL_WARNING, avf_main.log_class, "%U: " f, \
            format_vlib_pci_addr, &dev->pci_addr, \
            ## __VA_ARGS__)

#define avf_log_debug(dev, f, ...)                        \
  vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_main.log_class, "%U: " f, \
            format_vlib_pci_addr, &dev->pci_addr, \
            ## __VA_ARGS__)

#define foreach_avf_device_flags \
  _(0, INITIALIZED, "initialized") \
  _(1, ERROR, "error") \
  _(2, ADMIN_UP, "admin-up") \
  _(3, VA_DMA, "vaddr-dma") \
  _(4, LINK_UP, "link-up") \
  _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
  _(6, ELOG, "elog") \
  _(7, PROMISC, "promisc") \
  _(8, RX_INT, "rx-interrupts")

enum
{
#define _(a, b, c) AVF_DEVICE_F_##b = (1 << a),
  foreach_avf_device_flags
#undef _
};

typedef volatile struct
{
  union
  {
    struct
    {
      u64 mirr:13;
      u64 rsv1:3;
      u64 l2tag1:16;
      u64 filter_status:32;
      u64 status:19;
      u64 error:8;
      u64 rsv2:3;
      u64 ptype:8;
      u64 length:26;
    };
    u64 qword[4];
#ifdef CLIB_HAVE_VEC256
    u64x4 as_u64x4;
#endif
  };
} avf_rx_desc_t;

STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32);

typedef volatile struct
{
  union
  {
    u64 qword[2];
#ifdef CLIB_HAVE_VEC128
    u64x2 as_u64x2;
#endif
  };
} avf_tx_desc_t;

STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16);

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  volatile u32 *qrx_tail;
  u16 next;
  u16 size;
  avf_rx_desc_t *descs;
  u32 *bufs;
  u16 n_enqueued;
  u8 int_mode;
  u8 buffer_pool_index;
} avf_rxq_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  volatile u32 *qtx_tail;
  u16 next;
  u16 size;
  clib_spinlock_t lock;
  avf_tx_desc_t *descs;
  u32 *bufs;
  u16 n_enqueued;
  u16 *rs_slots;
} avf_txq_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  u32 flags;
  u32 per_interface_next_index;

  u32 dev_instance;
  u32 sw_if_index;
  u32 hw_if_index;
  vlib_pci_dev_handle_t pci_dev_handle;
  u32 numa_node;
  void *bar0;
  u8 *name;

  /* queues */
  avf_rxq_t *rxqs;
  avf_txq_t *txqs;
  u16 n_tx_queues;
  u16 n_rx_queues;

  /* Admin queues */
  avf_aq_desc_t *atq;
  avf_aq_desc_t *arq;
  void *atq_bufs;
  void *arq_bufs;
  u64 atq_bufs_pa;
  u64 arq_bufs_pa;
  u16 atq_next_slot;
  u16 arq_next_slot;
  virtchnl_pf_event_t *events;

  u16 vsi_id;
  u32 feature_bitmap;
  u8 hwaddr[6];
  u16 num_queue_pairs;
  u16 max_vectors;
  u16 n_rx_irqs;
  u16 max_mtu;
  u32 rss_key_size;
  u32 rss_lut_size;
  virtchnl_link_speed_t link_speed;
  vlib_pci_addr_t pci_addr;

  /* stats */
  virtchnl_eth_stats_t eth_stats;
  virtchnl_eth_stats_t last_cleared_eth_stats;

  /* error */
  clib_error_t *error;
} avf_device_t;

#define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE

typedef enum
{
  AVF_PROCESS_EVENT_START = 1,
  AVF_PROCESS_EVENT_DELETE_IF = 2,
  AVF_PROCESS_EVENT_AQ_INT = 3,
} avf_process_event_t;

typedef struct
{
  u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1];
  u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1];
} avf_rx_tail_t;

typedef struct
{
  CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
  vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
  u64 qw1s[AVF_RX_VECTOR_SZ];
  avf_rx_tail_t tails[AVF_RX_VECTOR_SZ];
  vlib_buffer_t buffer_template;
} avf_per_thread_data_t;

typedef struct
{
  u16 msg_id_base;

  avf_device_t **devices;
  avf_per_thread_data_t *per_thread_data;

  vlib_log_class_t log_class;
} avf_main_t;

extern avf_main_t avf_main;

typedef struct
{
  vlib_pci_addr_t addr;
  u8 *name;
  int enable_elog;
  u16 rxq_num;
  u16 rxq_size;
  u16 txq_size;
  /* return */
  int rv;
  u32 sw_if_index;
  clib_error_t *error;
} avf_create_if_args_t;

void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args);

extern vlib_node_registration_t avf_input_node;
extern vlib_node_registration_t avf_process_node;
extern vnet_device_class_t avf_device_class;

/* format.c */
format_function_t format_avf_device;
format_function_t format_avf_device_name;
format_function_t format_avf_input_trace;

static_always_inline avf_device_t *
avf_get_device (u32 dev_instance)
{
  return pool_elt_at_index (avf_main.devices, dev_instance)[0];
}

static inline u32
avf_get_u32 (void *start, int offset)
{
  return *(u32 *) (((u8 *) start) + offset);
}

static inline u64
avf_get_u64 (void *start, int offset)
{
  return *(u64 *) (((u8 *) start) + offset);
}

static inline u32
avf_get_u32_bits (void *start, int offset, int first, int last)
{
  u32 value = avf_get_u32 (start, offset);
  if ((last == 0) && (first == 31))
    return value;
  value >>= last;
  value &= (1 << (first - last + 1)) - 1;
  return value;
}

static inline u64
avf_get_u64_bits (void *start, int offset, int first, int last)
{
  u64 value = avf_get_u64 (start, offset);
  if ((last == 0) && (first == 63))
    return value;
  value >>= last;
  value &= (1 << (first - last + 1)) - 1;
  return value;
}

static inline void
avf_set_u32 (void *start, int offset, u32 value)
{
  (*(u32 *) (((u8 *) start) + offset)) = value;
}

static inline void
avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
{
  *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
}

static inline u32
avf_reg_read (avf_device_t * ad, u32 addr)
{
  return *(volatile u32 *) (ad->bar0 + addr);
}

static inline void
avf_reg_flush (avf_device_t * ad)
{
  avf_reg_read (ad, AVFGEN_RSTAT);
  asm volatile ("":::"memory");
}

static_always_inline int
avf_rxd_is_not_eop (avf_rx_desc_t * d)
{
  return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0;
}

static_always_inline int
avf_rxd_is_not_dd (avf_rx_desc_t * d)
{
  return (d->qword[1] & AVF_RXD_STATUS_DD) == 0;
}

typedef struct
{
  u16 qid;
  u16 next_index;
  u32 hw_if_index;
  u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN];
} avf_input_trace_t;

#define foreach_avf_tx_func_error	       \
  _(SEGMENT_SIZE_EXCEEDED, "segment size exceeded")	\
  _(NO_FREE_SLOTS, "no free tx slots")

typedef enum
{
#define _(f,s) AVF_TX_ERROR_##f,
  foreach_avf_tx_func_error
#undef _
    AVF_TX_N_ERROR,
} avf_tx_func_error_t;

#endif /* AVF_H */

/*
 * fd.io coding-style-patch-verification: ON
 *
 * Local Variables:
 * eval: (c-set-style "gnu")
 * End:
 */