2 * SPDX-License-Identifier: BSD-3-Clause
4 * Copyright (c) 2015-2020 Amazon.com, Inc. or its affiliates.
7 * Redistribution and use in source and binary forms, with or without
8 * modification, are permitted provided that the following conditions
11 * * Redistributions of source code must retain the above copyright
12 * notice, this list of conditions and the following disclaimer.
13 * * Redistributions in binary form must reproduce the above copyright
14 * notice, this list of conditions and the following disclaimer in
15 * the documentation and/or other materials provided with the
17 * * Neither the name of copyright holder nor the names of its
18 * contributors may be used to endorse or promote products derived
19 * from this software without specific prior written permission.
21 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
22 * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
23 * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
24 * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
25 * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
26 * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
27 * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
28 * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
29 * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
30 * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
31 * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
37 #include <sys/cdefs.h>
38 __FBSDID("$FreeBSD$");
40 #include <sys/param.h>
41 #include <sys/systm.h>
44 #include <sys/condvar.h>
45 #include <sys/endian.h>
46 #include <sys/kernel.h>
47 #include <sys/kthread.h>
48 #include <sys/malloc.h>
50 #include <sys/module.h>
54 #include <sys/socket.h>
55 #include <sys/sockio.h>
56 #include <sys/sysctl.h>
57 #include <sys/taskqueue.h>
58 #include <sys/eventhandler.h>
59 #include <sys/types.h>
60 #include <sys/timetc.h>
61 #include <sys/cdefs.h>
63 #include <machine/atomic.h>
64 #include <machine/bus.h>
65 #include <machine/in_cksum.h>
66 #include <machine/pcpu.h>
67 #include <machine/resource.h>
68 #include <machine/_inttypes.h>
71 #include <net/ethernet.h>
73 #include <net/if_var.h>
74 #include <net/if_arp.h>
75 #include <net/if_dl.h>
76 #include <net/if_media.h>
78 #include <net/if_types.h>
79 #include <net/if_vlan_var.h>
81 #include <netinet/in_systm.h>
82 #include <netinet/in.h>
83 #include <netinet/if_ether.h>
84 #include <netinet/ip.h>
85 #include <netinet/ip6.h>
86 #include <netinet/tcp.h>
87 #include <netinet/tcp_lro.h>
88 #include <netinet/udp.h>
90 #include <dev/led/led.h>
91 #include <dev/pci/pcivar.h>
92 #include <dev/pci/pcireg.h>
94 extern struct ena_bus_space ebs;
97 #define ENA_ALERT (1 << 0) /* Alerts are providing more error info. */
98 #define ENA_WARNING (1 << 1) /* Driver output is more error sensitive. */
99 #define ENA_INFO (1 << 2) /* Provides additional driver info. */
100 #define ENA_DBG (1 << 3) /* Driver output for debugging. */
101 /* Detailed info that will be printed with ENA_INFO or ENA_DEBUG flag. */
102 #define ENA_TXPTH (1 << 4) /* Allows TX path tracing. */
103 #define ENA_RXPTH (1 << 5) /* Allows RX path tracing. */
104 #define ENA_RSC (1 << 6) /* Goes with TXPTH or RXPTH, free/alloc res. */
105 #define ENA_IOQ (1 << 7) /* Detailed info about IO queues. */
106 #define ENA_ADMQ (1 << 8) /* Detailed info about admin queue. */
107 #define ENA_NETMAP (1 << 9) /* Detailed info about netmap. */
109 #define DEFAULT_ALLOC_ALIGNMENT 8
111 extern int ena_log_level;
113 #define container_of(ptr, type, member) \
115 const __typeof(((type *)0)->member) *__p = (ptr); \
116 (type *)((uintptr_t)__p - offsetof(type, member)); \
119 #define ena_trace_raw(ctx, level, fmt, args...) \
122 if (((level) & ena_log_level) != (level)) \
124 printf(fmt, ##args); \
127 #define ena_trace(ctx, level, fmt, args...) \
128 ena_trace_raw(ctx, level, "%s() [TID:%d]: " \
129 fmt, __func__, curthread->td_tid, ##args)
132 #define ena_trc_dbg(ctx, format, arg...) \
133 ena_trace(ctx, ENA_DBG, format, ##arg)
134 #define ena_trc_info(ctx, format, arg...) \
135 ena_trace(ctx, ENA_INFO, format, ##arg)
136 #define ena_trc_warn(ctx, format, arg...) \
137 ena_trace(ctx, ENA_WARNING, format, ##arg)
138 #define ena_trc_err(ctx, format, arg...) \
139 ena_trace(ctx, ENA_ALERT, format, ##arg)
141 #define unlikely(x) __predict_false(!!(x))
142 #define likely(x) __predict_true(!!(x))
145 #define ____cacheline_aligned __aligned(CACHE_LINE_SIZE)
147 #define MAX_ERRNO 4095
148 #define IS_ERR_VALUE(x) unlikely((x) <= (unsigned long)MAX_ERRNO)
150 #define ENA_WARN(cond, ctx, format, arg...) \
152 if (unlikely((cond))) { \
153 ena_trc_warn(ctx, format, ##arg); \
157 static inline long IS_ERR(const void *ptr)
159 return IS_ERR_VALUE((unsigned long)ptr);
162 static inline void *ERR_PTR(long error)
164 return (void *)error;
167 static inline long PTR_ERR(const void *ptr)
172 #define GENMASK(h, l) (((~0U) - (1U << (l)) + 1) & (~0U >> (32 - 1 - (h))))
173 #define GENMASK_ULL(h, l) (((~0ULL) << (l)) & (~0ULL >> (64 - 1 - (h))))
174 #define BIT(x) (1UL << (x))
176 #define ENA_ABORT() BUG()
177 #define BUG() panic("ENA BUG")
183 #define ENA_COM_FAULT EFAULT
184 #define ENA_COM_INVAL EINVAL
185 #define ENA_COM_NO_MEM ENOMEM
186 #define ENA_COM_NO_SPACE ENOSPC
187 #define ENA_COM_TRY_AGAIN -1
188 #define ENA_COM_UNSUPPORTED EOPNOTSUPP
189 #define ENA_COM_NO_DEVICE ENODEV
190 #define ENA_COM_PERMISSION EPERM
191 #define ENA_COM_TIMER_EXPIRED ETIMEDOUT
192 #define ENA_COM_EIO EIO
194 #define ENA_MSLEEP(x) pause_sbt("ena", SBT_1MS * (x), SBT_1MS, 0)
195 #define ENA_USLEEP(x) pause_sbt("ena", SBT_1US * (x), SBT_1US, 0)
196 #define ENA_UDELAY(x) DELAY(x)
197 #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \
198 ((long)cputick2usec(cpu_ticks()) + (timeout_us))
199 #define ENA_TIME_EXPIRE(timeout) ((timeout) < cputick2usec(cpu_ticks()))
200 #define ENA_MIGHT_SLEEP()
202 #define min_t(type, _x, _y) ((type)(_x) < (type)(_y) ? (type)(_x) : (type)(_y))
203 #define max_t(type, _x, _y) ((type)(_x) > (type)(_y) ? (type)(_x) : (type)(_y))
205 #define ENA_MIN32(x,y) MIN(x, y)
206 #define ENA_MIN16(x,y) MIN(x, y)
207 #define ENA_MIN8(x,y) MIN(x, y)
209 #define ENA_MAX32(x,y) MAX(x, y)
210 #define ENA_MAX16(x,y) MAX(x, y)
211 #define ENA_MAX8(x,y) MAX(x, y)
213 /* Spinlock related methods */
214 #define ena_spinlock_t struct mtx
215 #define ENA_SPINLOCK_INIT(spinlock) \
216 mtx_init(&(spinlock), "ena_spin", NULL, MTX_SPIN)
217 #define ENA_SPINLOCK_DESTROY(spinlock) \
219 if (mtx_initialized(&(spinlock))) \
220 mtx_destroy(&(spinlock)); \
222 #define ENA_SPINLOCK_LOCK(spinlock, flags) \
225 mtx_lock_spin(&(spinlock)); \
227 #define ENA_SPINLOCK_UNLOCK(spinlock, flags) \
230 mtx_unlock_spin(&(spinlock)); \
234 /* Wait queue related methods */
235 #define ena_wait_event_t struct { struct cv wq; struct mtx mtx; }
236 #define ENA_WAIT_EVENT_INIT(waitqueue) \
238 cv_init(&((waitqueue).wq), "cv"); \
239 mtx_init(&((waitqueue).mtx), "wq", NULL, MTX_DEF); \
241 #define ENA_WAIT_EVENTS_DESTROY(admin_queue) \
243 struct ena_comp_ctx *comp_ctx; \
245 for (i = 0; i < admin_queue->q_depth; i++) { \
246 comp_ctx = get_comp_ctxt(admin_queue, i, false); \
247 if (comp_ctx != NULL) { \
248 cv_destroy(&((comp_ctx->wait_event).wq)); \
249 mtx_destroy(&((comp_ctx->wait_event).mtx)); \
253 #define ENA_WAIT_EVENT_CLEAR(waitqueue) \
254 cv_init(&((waitqueue).wq), (waitqueue).wq.cv_description)
255 #define ENA_WAIT_EVENT_WAIT(waitqueue, timeout_us) \
257 mtx_lock(&((waitqueue).mtx)); \
258 cv_timedwait(&((waitqueue).wq), &((waitqueue).mtx), \
259 timeout_us * hz / 1000 / 1000 ); \
260 mtx_unlock(&((waitqueue).mtx)); \
262 #define ENA_WAIT_EVENT_SIGNAL(waitqueue) \
264 mtx_lock(&((waitqueue).mtx)); \
265 cv_broadcast(&((waitqueue).wq)); \
266 mtx_unlock(&((waitqueue).mtx)); \
269 #define dma_addr_t bus_addr_t
280 bus_dma_segment_t seg;
285 bus_space_handle_t reg_bar_h;
286 bus_space_tag_t reg_bar_t;
287 bus_space_handle_t mem_bar_h;
288 bus_space_tag_t mem_bar_t;
291 typedef uint32_t ena_atomic32_t;
293 #define ENA_PRIu64 PRIu64
295 typedef uint64_t ena_time_t;
296 typedef struct ifnet ena_netdev;
298 void ena_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nseg,
300 int ena_dma_alloc(device_t dmadev, bus_size_t size, ena_mem_handle_t *dma,
301 int mapflags, bus_size_t alignment);
303 static inline uint32_t
304 ena_reg_read32(struct ena_bus *bus, bus_size_t offset)
306 uint32_t v = bus_space_read_4(bus->reg_bar_t, bus->reg_bar_h, offset);
311 #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size) \
314 volatile uint64_t *to = (volatile uint64_t *)(dst); \
315 const uint64_t *from = (const uint64_t *)(src); \
316 count = (size) / 8; \
318 for (i = 0; i < count; i++, from++, to++) \
322 #define ENA_MEM_ALLOC(dmadev, size) malloc(size, M_DEVBUF, M_NOWAIT | M_ZERO)
323 #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) (virt = NULL)
324 #define ENA_MEM_FREE(dmadev, ptr, size) \
327 free(ptr, M_DEVBUF); \
329 #define ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED(dmadev, size, virt, phys, \
330 handle, node, dev_node, alignment) \
336 #define ENA_MEM_ALLOC_COHERENT_NODE(dmadev, size, virt, phys, handle, \
338 ENA_MEM_ALLOC_COHERENT_NODE_ALIGNED(dmadev, size, virt, \
339 phys, handle, node, dev_node, DEFAULT_ALLOC_ALIGNMENT)
341 #define ENA_MEM_ALLOC_COHERENT_ALIGNED(dmadev, size, virt, phys, dma, \
344 ena_dma_alloc((dmadev), (size), &(dma), 0, alignment); \
345 (virt) = (void *)(dma).vaddr; \
346 (phys) = (dma).paddr; \
349 #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, dma) \
350 ENA_MEM_ALLOC_COHERENT_ALIGNED(dmadev, size, virt, \
351 phys, dma, DEFAULT_ALLOC_ALIGNMENT)
353 #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, dma) \
356 bus_dmamap_unload((dma).tag, (dma).map); \
357 bus_dmamem_free((dma).tag, (virt), (dma).map); \
358 bus_dma_tag_destroy((dma).tag); \
363 /* Register R/W methods */
364 #define ENA_REG_WRITE32(bus, value, offset) \
367 ENA_REG_WRITE32_RELAXED(bus, value, offset); \
370 #define ENA_REG_WRITE32_RELAXED(bus, value, offset) \
372 ((struct ena_bus*)bus)->reg_bar_t, \
373 ((struct ena_bus*)bus)->reg_bar_h, \
374 (bus_size_t)(offset), (value))
376 #define ENA_REG_READ32(bus, offset) \
377 ena_reg_read32((struct ena_bus*)(bus), (bus_size_t)(offset))
379 #define ENA_DB_SYNC_WRITE(mem_handle) bus_dmamap_sync( \
380 (mem_handle)->tag, (mem_handle)->map, BUS_DMASYNC_PREWRITE)
381 #define ENA_DB_SYNC_PREREAD(mem_handle) bus_dmamap_sync( \
382 (mem_handle)->tag, (mem_handle)->map, BUS_DMASYNC_PREREAD)
383 #define ENA_DB_SYNC_POSTREAD(mem_handle) bus_dmamap_sync( \
384 (mem_handle)->tag, (mem_handle)->map, BUS_DMASYNC_POSTREAD)
385 #define ENA_DB_SYNC(mem_handle) ENA_DB_SYNC_WRITE(mem_handle)
387 #define time_after(a,b) ((long)((unsigned long)(b) - (unsigned long)(a)) < 0)
389 #define VLAN_HLEN sizeof(struct ether_vlan_header)
390 #define CSUM_OFFLOAD (CSUM_IP|CSUM_TCP|CSUM_UDP)
392 #define prefetch(x) (void)(x)
393 #define prefetchw(x) (void)(x)
395 /* DMA buffers access */
396 #define dma_unmap_addr(p, name) ((p)->dma->name)
397 #define dma_unmap_addr_set(p, name, v) (((p)->dma->name) = (v))
398 #define dma_unmap_len(p, name) ((p)->name)
399 #define dma_unmap_len_set(p, name, v) (((p)->name) = (v))
401 #define memcpy_toio memcpy
403 #define ATOMIC32_INC(I32_PTR) atomic_add_int(I32_PTR, 1)
404 #define ATOMIC32_DEC(I32_PTR) atomic_add_int(I32_PTR, -1)
405 #define ATOMIC32_READ(I32_PTR) atomic_load_acq_int(I32_PTR)
406 #define ATOMIC32_SET(I32_PTR, VAL) atomic_store_rel_int(I32_PTR, VAL)
408 #define barrier() __asm__ __volatile__("": : :"memory")
409 #define dma_rmb() barrier()
410 #define mmiowb() barrier()
412 #define ACCESS_ONCE(x) (*(volatile __typeof(x) *)&(x))
413 #define READ_ONCE(x) ({ \
416 __var = ACCESS_ONCE(x); \
420 #define READ_ONCE8(x) READ_ONCE(x)
421 #define READ_ONCE16(x) READ_ONCE(x)
422 #define READ_ONCE32(x) READ_ONCE(x)
424 #define upper_32_bits(n) ((uint32_t)(((n) >> 16) >> 16))
425 #define lower_32_bits(n) ((uint32_t)(n))
427 #define DIV_ROUND_UP(n, d) (((n) + (d) - 1) / (d))
429 #define ENA_FFS(x) ffs(x)
431 void ena_rss_key_fill(void *key, size_t size);
433 #define ENA_RSS_FILL_KEY(key, size) ena_rss_key_fill(key, size)
435 #include "ena_defs/ena_includes.h"
437 #endif /* ENA_PLAT_H_ */