1 /******************************************************************************
2
3 Copyright (c) 2013-2018, Intel Corporation
4 All rights reserved.
5
6 Redistribution and use in source and binary forms, with or without
7 modification, are permitted provided that the following conditions are met:
8
9 1. Redistributions of source code must retain the above copyright notice,
10 this list of conditions and the following disclaimer.
11
12 2. Redistributions in binary form must reproduce the above copyright
13 notice, this list of conditions and the following disclaimer in the
14 documentation and/or other materials provided with the distribution.
15
16 3. Neither the name of the Intel Corporation nor the names of its
17 contributors may be used to endorse or promote products derived from
18 this software without specific prior written permission.
19
20 THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
21 AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
22 IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
23 ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
24 LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
25 CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
26 SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS
27 INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN
28 CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
29 ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
30 POSSIBILITY OF SUCH DAMAGE.
31
32 ******************************************************************************/
33
34 #include <sys/limits.h>
35 #include <sys/time.h>
36
37 #include "ixl.h"
38
39 /********************************************************************
40 * Manage DMA'able memory.
41 *******************************************************************/
42 static void
i40e_dmamap_cb(void * arg,bus_dma_segment_t * segs,int nseg,int error)43 i40e_dmamap_cb(void *arg, bus_dma_segment_t * segs, int nseg, int error)
44 {
45 if (error)
46 return;
47 *(bus_addr_t *) arg = segs->ds_addr;
48 }
49
50 i40e_status
i40e_allocate_virt_mem(struct i40e_hw * hw,struct i40e_virt_mem * mem,u32 size)51 i40e_allocate_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem, u32 size)
52 {
53 mem->va = malloc(size, M_IXL, M_NOWAIT | M_ZERO);
54 return (mem->va == NULL);
55 }
56
57 i40e_status
i40e_free_virt_mem(struct i40e_hw * hw,struct i40e_virt_mem * mem)58 i40e_free_virt_mem(struct i40e_hw *hw, struct i40e_virt_mem *mem)
59 {
60 free(mem->va, M_IXL);
61 mem->va = NULL;
62
63 return (I40E_SUCCESS);
64 }
65
66 i40e_status
i40e_allocate_dma_mem(struct i40e_hw * hw,struct i40e_dma_mem * mem,enum i40e_memory_type type __unused,u64 size,u32 alignment)67 i40e_allocate_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem,
68 enum i40e_memory_type type __unused, u64 size, u32 alignment)
69 {
70 device_t dev = ((struct i40e_osdep *)hw->back)->dev;
71 int err;
72
73
74 err = bus_dma_tag_create(bus_get_dma_tag(dev), /* parent */
75 alignment, 0, /* alignment, bounds */
76 BUS_SPACE_MAXADDR, /* lowaddr */
77 BUS_SPACE_MAXADDR, /* highaddr */
78 NULL, NULL, /* filter, filterarg */
79 size, /* maxsize */
80 1, /* nsegments */
81 size, /* maxsegsize */
82 BUS_DMA_ALLOCNOW, /* flags */
83 NULL, /* lockfunc */
84 NULL, /* lockfuncarg */
85 &mem->tag);
86 if (err != 0) {
87 device_printf(dev,
88 "i40e_allocate_dma: bus_dma_tag_create failed, "
89 "error %u\n", err);
90 goto fail_0;
91 }
92 err = bus_dmamem_alloc(mem->tag, (void **)&mem->va,
93 BUS_DMA_NOWAIT | BUS_DMA_ZERO, &mem->map);
94 if (err != 0) {
95 device_printf(dev,
96 "i40e_allocate_dma: bus_dmamem_alloc failed, "
97 "error %u\n", err);
98 goto fail_1;
99 }
100 err = bus_dmamap_load(mem->tag, mem->map, mem->va,
101 size,
102 i40e_dmamap_cb,
103 &mem->pa,
104 BUS_DMA_NOWAIT);
105 if (err != 0) {
106 device_printf(dev,
107 "i40e_allocate_dma: bus_dmamap_load failed, "
108 "error %u\n", err);
109 goto fail_2;
110 }
111 mem->size = size;
112 bus_dmamap_sync(mem->tag, mem->map,
113 BUS_DMASYNC_PREREAD|BUS_DMASYNC_PREWRITE);
114 return (I40E_SUCCESS);
115 fail_2:
116 bus_dmamem_free(mem->tag, mem->va, mem->map);
117 fail_1:
118 bus_dma_tag_destroy(mem->tag);
119 fail_0:
120 mem->map = NULL;
121 mem->tag = NULL;
122 return (err);
123 }
124
125 i40e_status
i40e_free_dma_mem(struct i40e_hw * hw,struct i40e_dma_mem * mem)126 i40e_free_dma_mem(struct i40e_hw *hw, struct i40e_dma_mem *mem)
127 {
128 bus_dmamap_sync(mem->tag, mem->map,
129 BUS_DMASYNC_POSTREAD | BUS_DMASYNC_POSTWRITE);
130 bus_dmamap_unload(mem->tag, mem->map);
131 bus_dmamem_free(mem->tag, mem->va, mem->map);
132 bus_dma_tag_destroy(mem->tag);
133 return (I40E_SUCCESS);
134 }
135
136 void
i40e_init_spinlock(struct i40e_spinlock * lock)137 i40e_init_spinlock(struct i40e_spinlock *lock)
138 {
139 mtx_init(&lock->mutex, "mutex",
140 "ixl spinlock", MTX_DEF | MTX_DUPOK);
141 }
142
143 void
i40e_acquire_spinlock(struct i40e_spinlock * lock)144 i40e_acquire_spinlock(struct i40e_spinlock *lock)
145 {
146 mtx_lock(&lock->mutex);
147 }
148
149 void
i40e_release_spinlock(struct i40e_spinlock * lock)150 i40e_release_spinlock(struct i40e_spinlock *lock)
151 {
152 mtx_unlock(&lock->mutex);
153 }
154
155 void
i40e_destroy_spinlock(struct i40e_spinlock * lock)156 i40e_destroy_spinlock(struct i40e_spinlock *lock)
157 {
158 if (mtx_initialized(&lock->mutex))
159 mtx_destroy(&lock->mutex);
160 }
161
162 #ifndef MSEC_2_TICKS
163 #define MSEC_2_TICKS(m) max(1, (uint32_t)((hz == 1000) ? \
164 (m) : ((uint64_t)(m) * (uint64_t)hz)/(uint64_t)1000))
165 #endif
166
167 void
i40e_msec_pause(int msecs)168 i40e_msec_pause(int msecs)
169 {
170 pause("i40e_msec_pause", MSEC_2_TICKS(msecs));
171 }
172
173 /*
174 * Helper function for debug statement printing
175 */
176 void
i40e_debug_shared(struct i40e_hw * hw,enum i40e_debug_mask mask,char * fmt,...)177 i40e_debug_shared(struct i40e_hw *hw, enum i40e_debug_mask mask, char *fmt, ...)
178 {
179 va_list args;
180 device_t dev;
181
182 if (!(mask & ((struct i40e_hw *)hw)->debug_mask))
183 return;
184
185 dev = ((struct i40e_osdep *)hw->back)->dev;
186
187 /* Re-implement device_printf() */
188 device_print_prettyname(dev);
189 va_start(args, fmt);
190 vprintf(fmt, args);
191 va_end(args);
192 }
193
194 const char *
ixl_vc_opcode_str(uint16_t op)195 ixl_vc_opcode_str(uint16_t op)
196 {
197 switch (op) {
198 case VIRTCHNL_OP_VERSION:
199 return ("VERSION");
200 case VIRTCHNL_OP_RESET_VF:
201 return ("RESET_VF");
202 case VIRTCHNL_OP_GET_VF_RESOURCES:
203 return ("GET_VF_RESOURCES");
204 case VIRTCHNL_OP_CONFIG_TX_QUEUE:
205 return ("CONFIG_TX_QUEUE");
206 case VIRTCHNL_OP_CONFIG_RX_QUEUE:
207 return ("CONFIG_RX_QUEUE");
208 case VIRTCHNL_OP_CONFIG_VSI_QUEUES:
209 return ("CONFIG_VSI_QUEUES");
210 case VIRTCHNL_OP_CONFIG_IRQ_MAP:
211 return ("CONFIG_IRQ_MAP");
212 case VIRTCHNL_OP_ENABLE_QUEUES:
213 return ("ENABLE_QUEUES");
214 case VIRTCHNL_OP_DISABLE_QUEUES:
215 return ("DISABLE_QUEUES");
216 case VIRTCHNL_OP_ADD_ETH_ADDR:
217 return ("ADD_ETH_ADDR");
218 case VIRTCHNL_OP_DEL_ETH_ADDR:
219 return ("DEL_ETH_ADDR");
220 case VIRTCHNL_OP_ADD_VLAN:
221 return ("ADD_VLAN");
222 case VIRTCHNL_OP_DEL_VLAN:
223 return ("DEL_VLAN");
224 case VIRTCHNL_OP_CONFIG_PROMISCUOUS_MODE:
225 return ("CONFIG_PROMISCUOUS_MODE");
226 case VIRTCHNL_OP_GET_STATS:
227 return ("GET_STATS");
228 case VIRTCHNL_OP_RSVD:
229 return ("RSVD");
230 case VIRTCHNL_OP_EVENT:
231 return ("EVENT");
232 case VIRTCHNL_OP_CONFIG_RSS_KEY:
233 return ("CONFIG_RSS_KEY");
234 case VIRTCHNL_OP_CONFIG_RSS_LUT:
235 return ("CONFIG_RSS_LUT");
236 case VIRTCHNL_OP_GET_RSS_HENA_CAPS:
237 return ("GET_RSS_HENA_CAPS");
238 case VIRTCHNL_OP_SET_RSS_HENA:
239 return ("SET_RSS_HENA");
240 default:
241 return ("UNKNOWN");
242 }
243 }
244
245 u16
i40e_read_pci_cfg(struct i40e_hw * hw,u32 reg)246 i40e_read_pci_cfg(struct i40e_hw *hw, u32 reg)
247 {
248 u16 value;
249
250 value = pci_read_config(((struct i40e_osdep *)hw->back)->dev,
251 reg, 2);
252
253 return (value);
254 }
255
256 void
i40e_write_pci_cfg(struct i40e_hw * hw,u32 reg,u16 value)257 i40e_write_pci_cfg(struct i40e_hw *hw, u32 reg, u16 value)
258 {
259 pci_write_config(((struct i40e_osdep *)hw->back)->dev,
260 reg, value, 2);
261 }
262
263