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 50e-3
28 #define AVF_RXD_STATUS(x) (1ULL << x)
29 #define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0)
30 #define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1)
31 #define AVF_RXD_ERROR_SHIFT 19
32 #define AVF_RXD_PTYPE_SHIFT 30
33 #define AVF_RXD_LEN_SHIFT 38
34 #define AVF_RX_MAX_DESC_IN_CHAIN 5
36 #define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3))
37 #define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4))
39 #define AVF_TXD_CMD(x) (1 << (x + 4))
40 #define AVF_TXD_CMD_EOP AVF_TXD_CMD(0)
41 #define AVF_TXD_CMD_RS AVF_TXD_CMD(1)
42 #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2)
44 #define avf_log_err(dev, f, ...) \
45 vlib_log (VLIB_LOG_LEVEL_ERR, avf_main.log_class, "%U: " f, \
46 format_vlib_pci_addr, &dev->pci_addr, \
49 #define avf_log_warn(dev, f, ...) \
50 vlib_log (VLIB_LOG_LEVEL_WARNING, avf_main.log_class, "%U: " f, \
51 format_vlib_pci_addr, &dev->pci_addr, \
54 #define avf_log_debug(dev, f, ...) \
55 vlib_log (VLIB_LOG_LEVEL_DEBUG, avf_main.log_class, "%U: " f, \
56 format_vlib_pci_addr, &dev->pci_addr, \
59 #define foreach_avf_device_flags \
60 _(0, INITIALIZED, "initialized") \
61 _(1, ERROR, "error") \
62 _(2, ADMIN_UP, "admin-up") \
63 _(3, VA_DMA, "vaddr-dma") \
64 _(4, LINK_UP, "link-up") \
65 _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
70 #define _(a, b, c) AVF_DEVICE_F_##b = (1 << a),
71 foreach_avf_device_flags
75 typedef volatile struct
92 #ifdef CLIB_HAVE_VEC256
98 STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32);
100 typedef volatile struct
105 #ifdef CLIB_HAVE_VEC128
111 STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16);
115 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
116 volatile u32 *qrx_tail;
119 avf_rx_desc_t *descs;
123 u8 buffer_pool_index;
128 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
129 volatile u32 *qtx_tail;
132 clib_spinlock_t lock;
133 avf_tx_desc_t *descs;
141 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
143 u32 per_interface_next_index;
148 vlib_pci_dev_handle_t pci_dev_handle;
168 virtchnl_pf_event_t *events;
178 virtchnl_link_speed_t link_speed;
179 vlib_pci_addr_t pci_addr;
182 virtchnl_eth_stats_t eth_stats;
183 virtchnl_eth_stats_t last_cleared_eth_stats;
189 #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE
193 AVF_PROCESS_EVENT_START = 1,
194 AVF_PROCESS_EVENT_STOP = 2,
195 AVF_PROCESS_EVENT_AQ_INT = 3,
196 } avf_process_event_t;
200 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1];
201 u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1];
206 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
207 vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
208 u64 qw1s[AVF_RX_VECTOR_SZ];
209 avf_rx_tail_t tails[AVF_RX_VECTOR_SZ];
210 vlib_buffer_t buffer_template;
211 } avf_per_thread_data_t;
217 avf_device_t *devices;
218 avf_per_thread_data_t *per_thread_data;
220 vlib_log_class_t log_class;
223 extern avf_main_t avf_main;
227 vlib_pci_addr_t addr;
237 } avf_create_if_args_t;
239 void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args);
240 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad);
242 extern vlib_node_registration_t avf_input_node;
243 extern vnet_device_class_t avf_device_class;
246 format_function_t format_avf_device;
247 format_function_t format_avf_device_name;
248 format_function_t format_avf_input_trace;
251 avf_get_u32 (void *start, int offset)
253 return *(u32 *) (((u8 *) start) + offset);
257 avf_get_u64 (void *start, int offset)
259 return *(u64 *) (((u8 *) start) + offset);
263 avf_get_u32_bits (void *start, int offset, int first, int last)
265 u32 value = avf_get_u32 (start, offset);
266 if ((last == 0) && (first == 31))
269 value &= (1 << (first - last + 1)) - 1;
274 avf_get_u64_bits (void *start, int offset, int first, int last)
276 u64 value = avf_get_u64 (start, offset);
277 if ((last == 0) && (first == 63))
280 value &= (1 << (first - last + 1)) - 1;
285 avf_set_u32 (void *start, int offset, u32 value)
287 (*(u32 *) (((u8 *) start) + offset)) = value;
291 avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
293 *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
297 avf_reg_read (avf_device_t * ad, u32 addr)
299 return *(volatile u32 *) (ad->bar0 + addr);
303 avf_reg_flush (avf_device_t * ad)
305 avf_reg_read (ad, AVFGEN_RSTAT);
306 asm volatile ("":::"memory");
309 static_always_inline int
310 avf_rxd_is_not_eop (avf_rx_desc_t * d)
312 return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0;
315 static_always_inline int
316 avf_rxd_is_not_dd (avf_rx_desc_t * d)
318 return (d->qword[1] & AVF_RXD_STATUS_DD) == 0;
326 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN];
329 #define foreach_avf_tx_func_error \
330 _(NO_FREE_SLOTS, "no free tx slots")
334 #define _(f,s) AVF_TX_ERROR_##f,
335 foreach_avf_tx_func_error
338 } avf_tx_func_error_t;
343 * fd.io coding-style-patch-verification: ON
346 * eval: (c-set-style "gnu")