mirror of https://github.com/F-Stack/f-stack.git
160 lines
3.4 KiB
C
160 lines
3.4 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
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* Copyright(C) 2022 Intel Corporation
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*/
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#ifndef _GVE_OSDEP_H_
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#define _GVE_OSDEP_H_
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#include <string.h>
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#include <stdint.h>
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#include <stdio.h>
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#include <stdarg.h>
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#include <inttypes.h>
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#include <stdbool.h>
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#include <rte_bitops.h>
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#include <rte_byteorder.h>
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#include <rte_common.h>
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#include <rte_ether.h>
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#include <rte_io.h>
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#include <rte_log.h>
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#include <rte_malloc.h>
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#include <rte_memcpy.h>
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#include <rte_memzone.h>
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#include "../gve_logs.h"
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typedef uint8_t u8;
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typedef uint16_t u16;
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typedef uint32_t u32;
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typedef uint64_t u64;
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typedef rte_be16_t __sum16;
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typedef rte_be16_t __be16;
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typedef rte_be32_t __be32;
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typedef rte_be64_t __be64;
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typedef rte_iova_t dma_addr_t;
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#define ETH_MIN_MTU RTE_ETHER_MIN_MTU
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#define ETH_ALEN RTE_ETHER_ADDR_LEN
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#ifndef PAGE_SHIFT
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#define PAGE_SHIFT 12
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#endif
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#ifndef PAGE_SIZE
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#define PAGE_SIZE (1UL << PAGE_SHIFT)
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#endif
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#define BIT(nr) RTE_BIT32(nr)
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#define be16_to_cpu(x) rte_be_to_cpu_16(x)
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#define be32_to_cpu(x) rte_be_to_cpu_32(x)
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#define be64_to_cpu(x) rte_be_to_cpu_64(x)
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#define cpu_to_be16(x) rte_cpu_to_be_16(x)
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#define cpu_to_be32(x) rte_cpu_to_be_32(x)
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#define cpu_to_be64(x) rte_cpu_to_be_64(x)
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#define READ_ONCE32(x) rte_read32(&(x))
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#ifndef ____cacheline_aligned
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#define ____cacheline_aligned __rte_cache_aligned
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#endif
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#ifndef __packed
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#define __packed __rte_packed
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#endif
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#define __iomem
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#define msleep(ms) rte_delay_ms(ms)
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/* These macros are used to generate compilation errors if a struct/union
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* is not exactly the correct length. It gives a divide by zero error if
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* the struct/union is not of the correct size, otherwise it creates an
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* enum that is never used.
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*/
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#define GVE_CHECK_STRUCT_LEN(n, X) enum gve_static_assert_enum_##X \
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{ gve_static_assert_##X = (n) / ((sizeof(struct X) == (n)) ? 1 : 0) }
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#define GVE_CHECK_UNION_LEN(n, X) enum gve_static_asset_enum_##X \
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{ gve_static_assert_##X = (n) / ((sizeof(union X) == (n)) ? 1 : 0) }
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static __rte_always_inline u8
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readb(volatile void *addr)
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{
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return rte_read8(addr);
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}
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static __rte_always_inline void
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writeb(u8 value, volatile void *addr)
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{
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rte_write8(value, addr);
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}
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static __rte_always_inline void
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writel(u32 value, volatile void *addr)
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{
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rte_write32(value, addr);
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}
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static __rte_always_inline u32
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ioread32be(const volatile void *addr)
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{
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return rte_be_to_cpu_32(rte_read32(addr));
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}
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static __rte_always_inline void
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iowrite32be(u32 value, volatile void *addr)
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{
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writel(rte_cpu_to_be_32(value), addr);
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}
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/* DMA memory allocation tracking */
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struct gve_dma_mem {
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void *va;
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rte_iova_t pa;
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uint32_t size;
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const void *zone;
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};
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static inline void *
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gve_alloc_dma_mem(struct gve_dma_mem *mem, u64 size)
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{
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static uint16_t gve_dma_memzone_id;
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const struct rte_memzone *mz = NULL;
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char z_name[RTE_MEMZONE_NAMESIZE];
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if (!mem)
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return NULL;
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snprintf(z_name, sizeof(z_name), "gve_dma_%u",
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__atomic_fetch_add(&gve_dma_memzone_id, 1, __ATOMIC_RELAXED));
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mz = rte_memzone_reserve_aligned(z_name, size, SOCKET_ID_ANY,
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RTE_MEMZONE_IOVA_CONTIG,
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PAGE_SIZE);
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if (!mz)
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return NULL;
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mem->size = size;
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mem->va = mz->addr;
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mem->pa = mz->iova;
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mem->zone = mz;
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PMD_DRV_LOG(DEBUG, "memzone %s is allocated", mz->name);
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return mem->va;
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}
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static inline void
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gve_free_dma_mem(struct gve_dma_mem *mem)
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{
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PMD_DRV_LOG(DEBUG, "memzone %s to be freed",
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((const struct rte_memzone *)mem->zone)->name);
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rte_memzone_free(mem->zone);
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mem->zone = NULL;
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mem->va = NULL;
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mem->pa = 0;
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}
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#endif /* _GVE_OSDEP_H_ */
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