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net/thunderx/base: implement platform abstraction

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implement DPDK based platform abstraction for base code

Signed-off-by: Jerin Jacob <jerin.jacob@caviumnetworks.com>
Signed-off-by: Maciej Czekaj <maciej.czekaj@caviumnetworks.com>
Signed-off-by: Kamil Rytarowski <kamil.rytarowski@caviumnetworks.com>
Signed-off-by: Zyta Szpak <zyta.szpak@semihalf.com>
Signed-off-by: Slawomir Rosek <slawomir.rosek@semihalf.com>
Signed-off-by: Radoslaw Biernacki <rad@semihalf.com>
This commit is contained in:
Jerin Jacob 2016-06-17 18:59:30 +05:30 committed by Bruce Richardson
parent 262d43fe20
commit 899550e291
1 changed files with 129 additions and 0 deletions
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129
drivers/net/thunderx/base/nicvf_plat.h Normal file
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/*
* BSD LICENSE
*
* Copyright (C) Cavium networks Ltd. 2016.
*
* 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 Cavium networks 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 _THUNDERX_NICVF_H
#define _THUNDERX_NICVF_H
/* Platform/OS/arch specific abstractions */
/* log */
#include <rte_log.h>
#include "../nicvf_logs.h"
#define nicvf_log_error(s, ...) PMD_DRV_LOG(ERR, s, ##__VA_ARGS__)
#define nicvf_log_debug(s, ...) PMD_DRV_LOG(DEBUG, s, ##__VA_ARGS__)
#define nicvf_mbox_log(s, ...) PMD_MBOX_LOG(DEBUG, s, ##__VA_ARGS__)
#define nicvf_log(s, ...) fprintf(stderr, s, ##__VA_ARGS__)
/* delay */
#include <rte_cycles.h>
#define nicvf_delay_us(x) rte_delay_us(x)
/* barrier */
#include <rte_atomic.h>
#define nicvf_smp_wmb() rte_smp_wmb()
#define nicvf_smp_rmb() rte_smp_rmb()
/* utils */
#include <rte_common.h>
#define nicvf_min(x, y) RTE_MIN(x, y)
/* byte order */
#include <rte_byteorder.h>
#define nicvf_cpu_to_be_64(x) rte_cpu_to_be_64(x)
#define nicvf_be_to_cpu_64(x) rte_be_to_cpu_64(x)
/* Constants */
#include <rte_ether.h>
#define NICVF_MAC_ADDR_SIZE ETHER_ADDR_LEN
/* ARM64 specific functions */
#if defined(RTE_ARCH_ARM64)
#define nicvf_prefetch_store_keep(_ptr) ({\
asm volatile("prfm pstl1keep, %a0\n" : : "p" (_ptr)); })
static inline void __attribute__((always_inline))
nicvf_addr_write(uintptr_t addr, uint64_t val)
{
asm volatile(
"str %x[val], [%x[addr]]"
:
: [val] "r" (val), [addr] "r" (addr));
}
static inline uint64_t __attribute__((always_inline))
nicvf_addr_read(uintptr_t addr)
{
uint64_t val;
asm volatile(
"ldr %x[val], [%x[addr]]"
: [val] "=r" (val)
: [addr] "r" (addr));
return val;
}
#define NICVF_LOAD_PAIR(reg1, reg2, addr) ({ \
asm volatile( \
"ldp %x[x1], %x[x0], [%x[p1]]" \
: [x1]"=r"(reg1), [x0]"=r"(reg2)\
: [p1]"r"(addr) \
); })
#else /* non optimized functions for building on non arm64 arch */
#define nicvf_prefetch_store_keep(_ptr) do {} while (0)
static inline void __attribute__((always_inline))
nicvf_addr_write(uintptr_t addr, uint64_t val)
{
*(volatile uint64_t *)addr = val;
}
static inline uint64_t __attribute__((always_inline))
nicvf_addr_read(uintptr_t addr)
{
return *(volatile uint64_t *)addr;
}
#define NICVF_LOAD_PAIR(reg1, reg2, addr) \
do { \
reg1 = nicvf_addr_read((uintptr_t)addr); \
reg2 = nicvf_addr_read((uintptr_t)addr + 8); \
} while (0)
#endif
#endif /* _THUNDERX_NICVF_H */