2 *------------------------------------------------------------------
3 * Copyright (c) 2018 Cisco and/or its affiliates.
4 * Licensed under the Apache License, Version 2.0 (the "License");
5 * you may not use this file except in compliance with the License.
6 * You may obtain a copy of the License at:
8 * http://www.apache.org/licenses/LICENSE-2.0
10 * Unless required by applicable law or agreed to in writing, software
11 * distributed under the License is distributed on an "AS IS" BASIS,
12 * WITHOUT WARRANTIES OR CONDITIONS OF ANY KIND, either express or implied.
13 * See the License for the specific language governing permissions and
14 * limitations under the License.
15 *------------------------------------------------------------------
21 #include <avf/virtchnl.h>
25 #define AVF_QUEUE_SZ_MAX 4096
26 #define AVF_QUEUE_SZ_MIN 64
28 #define AVF_AQ_ENQ_SUSPEND_TIME 50e-6
29 #define AVF_AQ_ENQ_MAX_WAIT_TIME 250e-3
31 #define AVF_RESET_SUSPEND_TIME 20e-3
32 #define AVF_RESET_MAX_WAIT_TIME 1
34 #define AVF_SEND_TO_PF_SUSPEND_TIME 10e-3
35 #define AVF_SEND_TO_PF_MAX_WAIT_TIME 1
37 #define AVF_RXD_STATUS(x) (1ULL << x)
38 #define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0)
39 #define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1)
40 #define AVF_RXD_ERROR_SHIFT 19
41 #define AVF_RXD_PTYPE_SHIFT 30
42 #define AVF_RXD_LEN_SHIFT 38
43 #define AVF_RX_MAX_DESC_IN_CHAIN 5
45 #define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3))
46 #define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4))
48 #define AVF_TXD_CMD(x) (1 << (x + 4))
49 #define AVF_TXD_CMD_EOP AVF_TXD_CMD(0)
50 #define AVF_TXD_CMD_RS AVF_TXD_CMD(1)
51 #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2)
53 #define avf_log_err(dev, f, ...) \
54 vlib_log (VLIB_LOG_LEVEL_ERR, avf_main.log_class, "%U: " f, \
55 format_vlib_pci_addr, &dev->pci_addr, \
58 #define avf_log_warn(dev, f, ...) \
59 vlib_log (VLIB_LOG_LEVEL_WARNING, avf_main.log_class, "%U: " f, \
60 format_vlib_pci_addr, &dev->pci_addr, \
63 #define avf_log_debug(dev, f, ...) \
64 vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_main.log_class, "%U: " f, \
65 format_vlib_pci_addr, &dev->pci_addr, \
68 #define foreach_avf_device_flags \
69 _(0, INITIALIZED, "initialized") \
70 _(1, ERROR, "error") \
71 _(2, ADMIN_UP, "admin-up") \
72 _(3, VA_DMA, "vaddr-dma") \
73 _(4, LINK_UP, "link-up") \
74 _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
76 _(7, PROMISC, "promisc") \
77 _(8, RX_INT, "rx-interrupts")
81 #define _(a, b, c) AVF_DEVICE_F_##b = (1 << a),
82 foreach_avf_device_flags
86 typedef volatile struct
103 #ifdef CLIB_HAVE_VEC256
109 STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32);
111 typedef volatile struct
116 #ifdef CLIB_HAVE_VEC128
122 STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16);
126 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
127 volatile u32 *qrx_tail;
130 avf_rx_desc_t *descs;
134 u8 buffer_pool_index;
139 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
140 volatile u32 *qtx_tail;
143 clib_spinlock_t lock;
144 avf_tx_desc_t *descs;
152 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
154 u32 per_interface_next_index;
159 vlib_pci_dev_handle_t pci_dev_handle;
179 virtchnl_pf_event_t *events;
190 virtchnl_link_speed_t link_speed;
191 vlib_pci_addr_t pci_addr;
194 virtchnl_eth_stats_t eth_stats;
195 virtchnl_eth_stats_t last_cleared_eth_stats;
201 #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE
205 AVF_PROCESS_EVENT_START = 1,
206 AVF_PROCESS_EVENT_DELETE_IF = 2,
207 AVF_PROCESS_EVENT_AQ_INT = 3,
208 AVF_PROCESS_EVENT_SET_PROMISC_ENABLE = 4,
209 AVF_PROCESS_EVENT_SET_PROMISC_DISABLE = 5,
210 } avf_process_event_t;
214 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1];
215 u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1];
220 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
221 vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
222 u64 qw1s[AVF_RX_VECTOR_SZ];
223 avf_rx_tail_t tails[AVF_RX_VECTOR_SZ];
224 vlib_buffer_t buffer_template;
225 } avf_per_thread_data_t;
231 avf_device_t **devices;
232 avf_per_thread_data_t *per_thread_data;
234 vlib_log_class_t log_class;
237 extern avf_main_t avf_main;
241 vlib_pci_addr_t addr;
251 } avf_create_if_args_t;
253 void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args);
255 extern vlib_node_registration_t avf_input_node;
256 extern vlib_node_registration_t avf_process_node;
257 extern vnet_device_class_t avf_device_class;
260 format_function_t format_avf_device;
261 format_function_t format_avf_device_name;
262 format_function_t format_avf_input_trace;
264 static_always_inline avf_device_t *
265 avf_get_device (u32 dev_instance)
267 return pool_elt_at_index (avf_main.devices, dev_instance)[0];
271 avf_get_u32 (void *start, int offset)
273 return *(u32 *) (((u8 *) start) + offset);
277 avf_get_u64 (void *start, int offset)
279 return *(u64 *) (((u8 *) start) + offset);
283 avf_get_u32_bits (void *start, int offset, int first, int last)
285 u32 value = avf_get_u32 (start, offset);
286 if ((last == 0) && (first == 31))
289 value &= (1 << (first - last + 1)) - 1;
294 avf_get_u64_bits (void *start, int offset, int first, int last)
296 u64 value = avf_get_u64 (start, offset);
297 if ((last == 0) && (first == 63))
300 value &= (1 << (first - last + 1)) - 1;
305 avf_set_u32 (void *start, int offset, u32 value)
307 (*(u32 *) (((u8 *) start) + offset)) = value;
311 avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
313 *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
317 avf_reg_read (avf_device_t * ad, u32 addr)
319 return *(volatile u32 *) (ad->bar0 + addr);
323 avf_reg_flush (avf_device_t * ad)
325 avf_reg_read (ad, AVFGEN_RSTAT);
326 asm volatile ("":::"memory");
329 static_always_inline int
330 avf_rxd_is_not_eop (avf_rx_desc_t * d)
332 return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0;
335 static_always_inline int
336 avf_rxd_is_not_dd (avf_rx_desc_t * d)
338 return (d->qword[1] & AVF_RXD_STATUS_DD) == 0;
346 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN];
349 #define foreach_avf_tx_func_error \
350 _(SEGMENT_SIZE_EXCEEDED, "segment size exceeded") \
351 _(NO_FREE_SLOTS, "no free tx slots")
355 #define _(f,s) AVF_TX_ERROR_##f,
356 foreach_avf_tx_func_error
359 } avf_tx_func_error_t;
364 * fd.io coding-style-patch-verification: ON
367 * eval: (c-set-style "gnu")