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_RXD_STATUS(x) (1ULL << x)
26 #define AVF_RXD_STATUS_DD AVF_RXD_STATUS(0)
27 #define AVF_RXD_STATUS_EOP AVF_RXD_STATUS(1)
28 #define AVF_RXD_ERROR_SHIFT 19
29 #define AVF_RXD_PTYPE_SHIFT 30
30 #define AVF_RXD_LEN_SHIFT 38
31 #define AVF_RX_MAX_DESC_IN_CHAIN 5
33 #define AVF_RXD_ERROR_IPE (1ULL << (AVF_RXD_ERROR_SHIFT + 3))
34 #define AVF_RXD_ERROR_L4E (1ULL << (AVF_RXD_ERROR_SHIFT + 4))
36 #define AVF_TXD_CMD(x) (1 << (x + 4))
37 #define AVF_TXD_CMD_EOP AVF_TXD_CMD(0)
38 #define AVF_TXD_CMD_RS AVF_TXD_CMD(1)
39 #define AVF_TXD_CMD_RSV AVF_TXD_CMD(2)
41 #define foreach_avf_device_flags \
42 _(0, INITIALIZED, "initialized") \
43 _(1, ERROR, "error") \
44 _(2, ADMIN_UP, "admin-up") \
45 _(3, VA_DMA, "vaddr-dma") \
46 _(4, LINK_UP, "link-up") \
47 _(5, SHARED_TXQ_LOCK, "shared-txq-lock") \
52 #define _(a, b, c) AVF_DEVICE_F_##b = (1 << a),
53 foreach_avf_device_flags
57 typedef volatile struct
74 #ifdef CLIB_HAVE_VEC256
80 STATIC_ASSERT_SIZEOF (avf_rx_desc_t, 32);
82 typedef volatile struct
87 #ifdef CLIB_HAVE_VEC128
93 STATIC_ASSERT_SIZEOF (avf_tx_desc_t, 16);
97 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
98 volatile u32 *qrx_tail;
101 avf_rx_desc_t *descs;
109 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
110 volatile u32 *qtx_tail;
113 clib_spinlock_t lock;
114 avf_tx_desc_t *descs;
122 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
124 u32 per_interface_next_index;
129 vlib_pci_dev_handle_t pci_dev_handle;
149 virtchnl_pf_event_t *events;
159 virtchnl_link_speed_t link_speed;
162 virtchnl_eth_stats_t eth_stats;
168 #define AVF_RX_VECTOR_SZ VLIB_FRAME_SIZE
172 AVF_PROCESS_EVENT_START = 1,
173 AVF_PROCESS_EVENT_STOP = 2,
174 AVF_PROCESS_EVENT_AQ_INT = 3,
175 } avf_process_event_t;
179 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN - 1];
180 u32 buffers[AVF_RX_MAX_DESC_IN_CHAIN - 1];
185 CLIB_CACHE_LINE_ALIGN_MARK (cacheline0);
186 vlib_buffer_t *bufs[AVF_RX_VECTOR_SZ];
187 u64 qw1s[AVF_RX_VECTOR_SZ];
188 avf_rx_tail_t tails[AVF_RX_VECTOR_SZ];
189 vlib_buffer_t buffer_template;
190 } avf_per_thread_data_t;
196 avf_device_t *devices;
197 avf_per_thread_data_t *per_thread_data;
199 vlib_log_class_t log_class;
202 extern avf_main_t avf_main;
206 vlib_pci_addr_t addr;
216 } avf_create_if_args_t;
218 void avf_create_if (vlib_main_t * vm, avf_create_if_args_t * args);
219 void avf_delete_if (vlib_main_t * vm, avf_device_t * ad);
221 extern vlib_node_registration_t avf_input_node;
222 extern vnet_device_class_t avf_device_class;
225 format_function_t format_avf_device;
226 format_function_t format_avf_device_name;
227 format_function_t format_avf_input_trace;
230 avf_get_u32 (void *start, int offset)
232 return *(u32 *) (((u8 *) start) + offset);
236 avf_get_u64 (void *start, int offset)
238 return *(u64 *) (((u8 *) start) + offset);
242 avf_get_u32_bits (void *start, int offset, int first, int last)
244 u32 value = avf_get_u32 (start, offset);
245 if ((last == 0) && (first == 31))
248 value &= (1 << (first - last + 1)) - 1;
253 avf_get_u64_bits (void *start, int offset, int first, int last)
255 u64 value = avf_get_u64 (start, offset);
256 if ((last == 0) && (first == 63))
259 value &= (1 << (first - last + 1)) - 1;
264 avf_set_u32 (void *start, int offset, u32 value)
266 (*(u32 *) (((u8 *) start) + offset)) = value;
270 avf_reg_write (avf_device_t * ad, u32 addr, u32 val)
272 *(volatile u32 *) ((u8 *) ad->bar0 + addr) = val;
276 avf_reg_read (avf_device_t * ad, u32 addr)
278 return *(volatile u32 *) (ad->bar0 + addr);
282 avf_reg_flush (avf_device_t * ad)
284 avf_reg_read (ad, AVFGEN_RSTAT);
285 asm volatile ("":::"memory");
288 static_always_inline int
289 avf_rxd_is_not_eop (avf_rx_desc_t * d)
291 return (d->qword[1] & AVF_RXD_STATUS_EOP) == 0;
294 static_always_inline int
295 avf_rxd_is_not_dd (avf_rx_desc_t * d)
297 return (d->qword[1] & AVF_RXD_STATUS_DD) == 0;
304 u64 qw1s[AVF_RX_MAX_DESC_IN_CHAIN];
307 #define foreach_avf_tx_func_error \
308 _(NO_FREE_SLOTS, "no free tx slots")
312 #define _(f,s) AVF_TX_ERROR_##f,
313 foreach_avf_tx_func_error
316 } avf_tx_func_error_t;
321 * fd.io coding-style-patch-verification: ON
324 * eval: (c-set-style "gnu")