/*- * BSD LICENSE * * Copyright (c) 2015-2017 Amazon.com, Inc. or its affiliates. * All rights reserved. * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * * * Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * * Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in * the documentation and/or other materials provided with the * distribution. * * Neither the name of copyright holder nor the names of its * contributors may be used to endorse or promote products derived * from this software without specific prior written permission. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS * "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT * LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR * A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT * OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, * SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT * LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, * DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY * THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT * (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE * OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE. */ #ifndef ENA_PLAT_H_ #define ENA_PLAT_H_ #include #if 0 __FBSDID("$FreeBSD: head/sys/contrib/ena-com/ena_plat.h 333453 2018-05-10 09:25:51Z mw $"); #endif __KERNEL_RCSID(0, "$NetBSD: ena_plat.h,v 1.9.4.1 2023/11/26 11:37:03 bouyer Exp $"); #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include #include /* XXX for struct ip */ #include /* XXX for struct ip */ #include /* XXX for struct ip */ #include /* XXX for struct ip6_hdr */ #include /* XXX for struct tcphdr */ #include #include extern struct ena_bus_space ebs; /* Levels */ #define ENA_ALERT (1 << 0) /* Alerts are providing more error info. */ #define ENA_WARNING (1 << 1) /* Driver output is more error sensitive. */ #define ENA_INFO (1 << 2) /* Provides additional driver info. */ #define ENA_DBG (1 << 3) /* Driver output for debugging. */ /* Detailed info that will be printed with ENA_INFO or ENA_DEBUG flag. */ #define ENA_TXPTH (1 << 4) /* Allows TX path tracing. */ #define ENA_RXPTH (1 << 5) /* Allows RX path tracing. */ #define ENA_RSC (1 << 6) /* Goes with TXPTH or RXPTH, free/alloc res. */ #define ENA_IOQ (1 << 7) /* Detailed info about IO queues. */ #define ENA_ADMQ (1 << 8) /* Detailed info about admin queue. */ extern int ena_log_level; #define ena_trace_raw(level, fmt, args...) \ do { \ if (((level) & ena_log_level) != (level)) \ break; \ printf(fmt, ##args); \ } while (0) #define ena_trace(level, fmt, args...) \ ena_trace_raw(level, "%s() [LID:%d]: " \ fmt " \n", __func__, curlwp->l_lid, ##args) #define ena_trc_dbg(format, arg...) ena_trace(ENA_DBG, format, ##arg) #define ena_trc_info(format, arg...) ena_trace(ENA_INFO, format, ##arg) #define ena_trc_warn(format, arg...) ena_trace(ENA_WARNING, format, ##arg) #define ena_trc_err(format, arg...) ena_trace(ENA_ALERT, format, ##arg) #define unlikely(x) __predict_false(x) #define likely(x) __predict_true(x) #define __iomem #define ____cacheline_aligned __aligned(CACHE_LINE_SIZE) #define MAX_ERRNO 4095 #define IS_ERR_VALUE(x) unlikely((x) <= (unsigned long)MAX_ERRNO) #define ENA_ASSERT(cond, format, arg...) \ do { \ if (unlikely(!(cond))) { \ ena_trc_err( \ "Assert failed on %s:%s:%d:" format, \ __FILE__, __func__, __LINE__, ##arg); \ } \ } while (0) #define ENA_WARN(cond, format, arg...) \ do { \ if (unlikely((cond))) { \ ena_trc_warn(format, ##arg); \ } \ } while (0) static inline long IS_ERR(const void *ptr) { return IS_ERR_VALUE((unsigned long)ptr); } static inline void *ERR_PTR(long error) { return (void *)error; } static inline long PTR_ERR(const void *ptr) { return (long) ptr; } #define GENMASK(h, l) (((1U << ((h) - (l) + 1)) - 1) << (l)) #define GENMASK_ULL(h, l) (((~0ULL) << (l)) & (~0ULL >> (64 - 1 - (h)))) #define BIT(x) (1UL << (x)) #define ENA_ABORT() BUG() #define BUG() panic("ENA BUG") #define SZ_256 (256) #define SZ_4K (4096) #define ENA_COM_OK 0 #define ENA_COM_FAULT EFAULT #define ENA_COM_INVAL EINVAL #define ENA_COM_NO_MEM ENOMEM #define ENA_COM_NO_SPACE ENOSPC #define ENA_COM_TRY_AGAIN -1 #define ENA_COM_UNSUPPORTED EOPNOTSUPP #define ENA_COM_NO_DEVICE ENODEV #define ENA_COM_PERMISSION EPERM #define ENA_COM_TIMER_EXPIRED ETIMEDOUT static inline int ENA_MSLEEP(int x) { if (cold) { while (x >= 1000000) { delay(1000000); x -= 1000000; } if (x > 0) delay(x); return EWOULDBLOCK; } else { return kpause("enaw", false, mstohz(x), NULL); } } #define ENA_UDELAY(x) DELAY(x) #define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \ mstohz(timeout_us * (1000 / 100)) /* XXX assumes 100 ms sleep */ #define ENA_TIME_EXPIRE(timeout) ((timeout)-- <= 0) #define ENA_MIGHT_SLEEP() #define min_t(type, _x, _y) ((type)(_x) < (type)(_y) ? (type)(_x) : (type)(_y)) #define max_t(type, _x, _y) ((type)(_x) > (type)(_y) ? (type)(_x) : (type)(_y)) #define ENA_MIN32(x,y) MIN(x, y) #define ENA_MIN16(x,y) MIN(x, y) #define ENA_MIN8(x,y) MIN(x, y) #define ENA_MAX32(x,y) MAX(x, y) #define ENA_MAX16(x,y) MAX(x, y) #define ENA_MAX8(x,y) MAX(x, y) /* Spinlock related methods */ #define ena_spinlock_t kmutex_t #define ENA_SPINLOCK_INIT(spinlock) \ mutex_init(&(spinlock), MUTEX_DEFAULT, IPL_NET) #define ENA_SPINLOCK_DESTROY(spinlock) \ do { \ mutex_destroy(&(spinlock)); \ } while (0) #define ENA_SPINLOCK_LOCK(spinlock, flags) \ do { \ (void)(flags); \ mutex_enter(&(spinlock)); \ } while (0) #define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ do { \ (void)(flags); \ mutex_exit(&(spinlock)); \ } while (0) /* Wait queue related methods */ #define ena_wait_event_t struct { kcondvar_t wq; kmutex_t mtx; } #define ENA_WAIT_EVENT_INIT(waitqueue) \ do { \ cv_init(&((waitqueue).wq), "enacv"); \ mutex_init(&((waitqueue).mtx), MUTEX_DEFAULT, IPL_NET); \ } while (0) #define ENA_WAIT_EVENT_DESTROY(waitqueue) \ do { \ cv_destroy(&((waitqueue).wq)); \ mutex_destroy(&((waitqueue).mtx)); \ } while (0) #define ENA_WAIT_EVENT_CLEAR(waitqueue) \ cv_init(&((waitqueue).wq), "enacv") #define ENA_WAIT_EVENT_WAIT(waitqueue, timeout_us) \ do { \ mutex_enter(&((waitqueue).mtx)); \ cv_timedwait(&((waitqueue).wq), &((waitqueue).mtx), \ timeout_us * hz / 1000 / 1000 ); \ mutex_exit(&((waitqueue).mtx)); \ } while (0) #define ENA_WAIT_EVENT_SIGNAL(waitqueue) \ do { \ mutex_enter(&((waitqueue).mtx)); \ cv_broadcast(&((waitqueue).wq)); \ mutex_exit(&((waitqueue).mtx)); \ } while (0) #define dma_addr_t bus_addr_t #define u8 uint8_t #define u16 uint16_t #define u32 uint32_t #define u64 uint64_t typedef struct { paddr_t paddr; void *vaddr; bus_dma_tag_t tag; bus_dmamap_t map; bus_dma_segment_t seg; int nseg; } ena_mem_handle_t; struct ena_bus { bus_space_handle_t reg_bar_h; bus_space_tag_t reg_bar_t; bus_space_handle_t mem_bar_h; bus_space_tag_t mem_bar_t; }; typedef uint32_t ena_atomic32_t; void ena_dmamap_callback(void *arg, bus_dma_segment_t *segs, int nseg, int error); int ena_dma_alloc(device_t dmadev, bus_size_t size, ena_mem_handle_t *dma, int mapflags); #define ENA_MEMCPY_TO_DEVICE_64(dst, src, size) \ do { \ int count, i; \ volatile uint64_t *to = (volatile uint64_t *)(dst); \ const uint64_t *from = (const uint64_t *)(src); \ count = (size) / 8; \ \ for (i = 0; i < count; i++, from++, to++) \ *to = *from; \ } while (0) #define ENA_MEM_ALLOC(dmadev, size) kmem_zalloc(size, KM_NOSLEEP) #define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) (virt = NULL) #define ENA_MEM_FREE(dmadev, ptr, size) kmem_free(ptr, size) #define ENA_MEM_ALLOC_COHERENT_NODE(dmadev, size, virt, phys, handle, node, \ dev_node) \ do { \ ((virt) = NULL); \ (void)(dev_node); \ } while (0) #define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, dma) \ do { \ ena_dma_alloc((dmadev), (size), &(dma), 0); \ (virt) = (void *)(dma).vaddr; \ (phys) = (dma).paddr; \ } while (0) #define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, dma) \ do { \ (void)size; \ size_t mapsize = (dma).map->dm_mapsize; \ bus_dmamap_unload((dma).tag, (dma).map); \ bus_dmamem_unmap((dma).tag, (dma).vaddr, mapsize); \ bus_dmamem_free((dma).tag, &(dma).seg, (dma).nseg); \ bus_dmamap_destroy((dma).tag, (dma).map); \ (dma).tag = NULL; \ (virt) = NULL; \ } while (0) /* Register R/W methods */ #define ENA_REG_WRITE32(bus, value, offset) \ bus_space_write_4( \ ((struct ena_bus*)bus)->reg_bar_t, \ ((struct ena_bus*)bus)->reg_bar_h, \ (bus_size_t)(offset), (value)) #define ENA_REG_READ32(bus, offset) \ bus_space_read_4( \ ((struct ena_bus*)bus)->reg_bar_t, \ ((struct ena_bus*)bus)->reg_bar_h, \ (bus_size_t)(offset)) #define ENA_DB_SYNC(mem_handle) bus_dmamap_sync((mem_handle)->tag, \ (mem_handle)->map, 0, (mem_handle)->map->dm_mapsize, \ BUS_DMASYNC_PREREAD) #define time_after(a,b) ((long)((unsigned long)(b) - (unsigned long)(a)) < 0) #define VLAN_HLEN sizeof(struct ether_vlan_header) #define CSUM_OFFLOAD (M_CSUM_IPv4|M_CSUM_TCPv4|M_CSUM_UDPv4) #if defined(__i386__) || defined(__amd64__) static __inline void prefetch(void *x) { __asm volatile("prefetcht0 %0" :: "m" (*(unsigned long *)x)); } #else #define prefetch(x) #endif /* DMA buffers access */ #define dma_unmap_addr(p, name) ((p)->dma->name) #define dma_unmap_addr_set(p, name, v) (((p)->dma->name) = (v)) #define dma_unmap_len(p, name) ((p)->name) #define dma_unmap_len_set(p, name, v) (((p)->name) = (v)) #define memcpy_toio memcpy #define ATOMIC32_INC(I32_PTR) atomic_inc_32(I32_PTR) #define ATOMIC32_DEC(I32_PTR) atomic_dec_32(I32_PTR) #define ATOMIC32_READ(I32_PTR) atomic_cas_32(I32_PTR, 0, 0) #define ATOMIC32_SET(I32_PTR, VAL) atomic_swap_32(I32_PTR, VAL) #define barrier() __asm__ __volatile__("": : :"memory") #define ACCESS_ONCE(x) (*(volatile __typeof(x) *)&(x)) #define READ_ONCE(x) ({ \ __typeof(x) __var; \ barrier(); \ __var = ACCESS_ONCE(x); \ barrier(); \ __var; \ }) #include "ena_defs/ena_includes.h" /* * XXX This is not really right. Need to adjust the driver to use * bus_space_barrier or bus_dmamap_sync. */ #if defined(__i386__) || defined(__x86_64__) #include #define rmb() x86_lfence() #define wmb() x86_sfence() #define mb() x86_mfence() #elif defined(__aarch64__) #define rmb() __asm __volatile("dsb ld" ::: "memory") #define wmb() __asm __volatile("dsb st" ::: "memory") #define mb() __asm __volatile("dsb sy" ::: "memory") #else #define rmb() membar_acquire() #define wmb() membar_release() #define mb() membar_sync() #endif #endif /* ENA_PLAT_H_ */