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_AQ_ENQ_SUSPEND_TIME 50e-6
26 #define AVF_AQ_ENQ_MAX_WAIT_TIME 250e-3
28 #define AVF_RESET_SUSPEND_TIME 20e-3
29 #define AVF_RESET_MAX_WAIT_TIME 1
31 #define AVF_SEND_TO_PF_SUSPEND_TIME 10e-3
32 #define AVF_SEND_TO_PF_MAX_WAIT_TIME 1
34 #define AVF_RXD_STATUS(x) (1ULL << x)
35 #define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0)
36 #define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1)
37 #define AVF_RXD_ERROR_SHIFT 19
38 #define AVF_RXD_PTYPE_SHIFT 30
39 #define AVF_RXD_LEN_SHIFT 38
40 #define AVF_RX_MAX_DESC_IN_CHAIN 5
42 #define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3))
43 #define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4))
45 #define AVF_TXD_CMD(x) (1 << (x + 4))
46 #define AVF_TXD_CMD_EOP AVF_TXD_CMD(0)
47 #define AVF_TXD_CMD_RS AVF_TXD_CMD(1)
48 #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2)
50 #define avf_log_err(dev, f, ...) \
51 vlib_log (VLIB_LOG_LEVEL_ERR, avf_main.log_class, "%U: " f, \
52 format_vlib_pci_addr, &dev->pci_addr, \
55 #define avf_log_warn(dev, f, ...) \
56 vlib_log (VLIB_LOG_LEVEL_WARNING, avf_main.log_class, "%U: " f, \
57 format_vlib_pci_addr, &dev->pci_addr, \
60 #define avf_log_debug(dev, f, ...) \
61 vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_main.log_class, "%U: " f, \
62 format_vlib_pci_addr, &dev->pci_addr, \
65 #define foreach_avf_device_flags \
66 _(0, INITIALIZED, "initialized") \
67 _(1, ERROR, "error") \
68 _(2, ADMIN_UP, "admin-up") \
69 _(3, VA_DMA, "vaddr-dma") \
70 _(4, LINK_UP, "link-up") \
71 _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
73 _(7, PROMISC, "promisc") \
74 _(8, RX_INT, "rx-interrupts")
78 #define _(a, b, c) AVF_DEVICE_F_##b = (1 << a),
79 foreach_avf_device_flags
83 typedef volatile struct
100 #ifdef CLIB_HAVE_VEC256
106 STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32);
108 typedef volatile struct
113 #ifdef CLIB_HAVE_VEC128
119 STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16);
123 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
124 volatile u32 *qrx_tail;
127 avf_rx_desc_t *descs;
131 u8 buffer_pool_index;
136 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
137 volatile u32 *qtx_tail;
140 clib_spinlock_t lock;
141 avf_tx_desc_t *descs;
149 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
151 u32 per_interface_next_index;
156 vlib_pci_dev_handle_t pci_dev_handle;
176 virtchnl_pf_event_t *events;
187 virtchnl_link_speed_t link_speed;
188 vlib_pci_addr_t pci_addr;
191 virtchnl_eth_stats_t eth_stats;
192 virtchnl_eth_stats_t last_cleared_eth_stats;
198 #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE
202 AVF_PROCESS_EVENT_START = 1,
203 AVF_PROCESS_EVENT_DELETE_IF = 2,
204 AVF_PROCESS_EVENT_AQ_INT = 3,
205 AVF_PROCESS_EVENT_SET_PROMISC_ENABLE = 4,
206 AVF_PROCESS_EVENT_SET_PROMISC_DISABLE = 5,
207 } avf_process_event_t;
211 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1];
212 u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1];
217 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
218 vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
219 u64 qw1s[AVF_RX_VECTOR_SZ];
220 avf_rx_tail_t tails[AVF_RX_VECTOR_SZ];
221 vlib_buffer_t buffer_template;
222 } avf_per_thread_data_t;
228 avf_device_t **devices;
229 avf_per_thread_data_t *per_thread_data;
231 vlib_log_class_t log_class;
234 extern avf_main_t avf_main;
238 vlib_pci_addr_t addr;
248 } avf_create_if_args_t;
250 void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args);
252 extern vlib_node_registration_t avf_input_node;
253 extern vlib_node_registration_t avf_process_node;
254 extern vnet_device_class_t avf_device_class;
257 format_function_t format_avf_device;
258 format_function_t format_avf_device_name;
259 format_function_t format_avf_input_trace;
261 static_always_inline avf_device_t *
262 avf_get_device (u32 dev_instance)
264 return pool_elt_at_index (avf_main.devices, dev_instance)[0];
268 avf_get_u32 (void *start, int offset)
270 return *(u32 *) (((u8 *) start) + offset);
274 avf_get_u64 (void *start, int offset)
276 return *(u64 *) (((u8 *) start) + offset);
280 avf_get_u32_bits (void *start, int offset, int first, int last)
282 u32 value = avf_get_u32 (start, offset);
283 if ((last == 0) && (first == 31))
286 value &= (1 << (first - last + 1)) - 1;
291 avf_get_u64_bits (void *start, int offset, int first, int last)
293 u64 value = avf_get_u64 (start, offset);
294 if ((last == 0) && (first == 63))
297 value &= (1 << (first - last + 1)) - 1;
302 avf_set_u32 (void *start, int offset, u32 value)
304 (*(u32 *) (((u8 *) start) + offset)) = value;
308 avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
310 *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
314 avf_reg_read (avf_device_t * ad, u32 addr)
316 return *(volatile u32 *) (ad->bar0 + addr);
320 avf_reg_flush (avf_device_t * ad)
322 avf_reg_read (ad, AVFGEN_RSTAT);
323 asm volatile ("":::"memory");
326 static_always_inline int
327 avf_rxd_is_not_eop (avf_rx_desc_t * d)
329 return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0;
332 static_always_inline int
333 avf_rxd_is_not_dd (avf_rx_desc_t * d)
335 return (d->qword[1] & AVF_RXD_STATUS_DD) == 0;
343 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN];
346 #define foreach_avf_tx_func_error \
347 _(SEGMENT_SIZE_EXCEEDED, "segment size exceeded") \
348 _(NO_FREE_SLOTS, "no free tx slots")
352 #define _(f,s) AVF_TX_ERROR_##f,
353 foreach_avf_tx_func_error
356 } avf_tx_func_error_t;
361 * fd.io coding-style-patch-verification: ON
364 * eval: (c-set-style "gnu")