From: Jan Medala Date: Thu, 17 Mar 2016 14:31:17 +0000 (+0100) Subject: ena: add communication layer for DPDK X-Git-Tag: spdx-start~7211 X-Git-Url: http://git.droids-corp.org/?a=commitdiff_plain;h=9ba7981ec992;p=dpdk.git ena: add communication layer for DPDK Implementation of platform specific code for ENA communication layer. Signed-off-by: Evgeny Schemeilin Signed-off-by: Jan Medala Signed-off-by: Jakub Palider --- diff --git a/drivers/net/ena/base/ena_plat_dpdk.h b/drivers/net/ena/base/ena_plat_dpdk.h new file mode 100644 index 0000000000..e245e34af9 --- /dev/null +++ b/drivers/net/ena/base/ena_plat_dpdk.h @@ -0,0 +1,217 @@ +/*- +* BSD LICENSE +* +* Copyright (c) 2015-2016 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 DPDK_ENA_COM_ENA_PLAT_DPDK_H_ +#define DPDK_ENA_COM_ENA_PLAT_DPDK_H_ + +#include +#include +#include +#include +#include +#include + +#include +#include +#include +#include +#include +#include +#include + +#include + +typedef uint64_t u64; +typedef uint32_t u32; +typedef uint16_t u16; +typedef uint8_t u8; + +typedef uint64_t dma_addr_t; + +#define ena_atomic32_t rte_atomic32_t +#define ena_mem_handle_t void * + +#define SZ_256 (256) +#define SZ_4K (4096) + +#define ENA_COM_OK 0 +#define ENA_COM_NO_MEM -ENOMEM +#define ENA_COM_INVAL -EINVAL +#define ENA_COM_NO_SPACE -ENOSPC +#define ENA_COM_NO_DEVICE -ENODEV +#define ENA_COM_PERMISSION -EPERM +#define ENA_COM_TIMER_EXPIRED -ETIME +#define ENA_COM_FAULT -EFAULT + +#define ____cacheline_aligned __rte_cache_aligned + +#define ENA_ABORT() abort() + +#define ENA_MSLEEP(x) rte_delay_ms(x) +#define ENA_UDELAY(x) rte_delay_us(x) + +#define memcpy_toio memcpy +#define wmb rte_wmb +#define rmb rte_wmb +#define mb rte_mb +#define __iomem + +#define US_PER_S 1000000 +#define ENA_GET_SYSTEM_USECS() \ + (rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz()) + +#define ENA_ASSERT(cond, format, arg...) \ + do { \ + if (unlikely(!(cond))) { \ + printf("Assertion failed on %s:%s:%d: " format, \ + __FILE__, __func__, __LINE__, ##arg); \ + rte_exit(EXIT_FAILURE, "ASSERTION FAILED\n"); \ + } \ + } while (0) + +#define ENA_MAX32(x, y) RTE_MAX((x), (y)) +#define ENA_MAX16(x, y) RTE_MAX((x), (y)) +#define ENA_MAX8(x, y) RTE_MAX((x), (y)) +#define ENA_MIN32(x, y) RTE_MIN((x), (y)) +#define ENA_MIN16(x, y) RTE_MIN((x), (y)) +#define ENA_MIN8(x, y) RTE_MIN((x), (y)) + +#define U64_C(x) x ## ULL +#define BIT(nr) (1UL << (nr)) +#define BITS_PER_LONG (__SIZEOF_LONG__ * 8) +#define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h)))) +#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l)) + +#ifdef RTE_LIBRTE_ENA_COM_DEBUG +#define ena_trc_dbg(format, arg...) \ + RTE_LOG(DEBUG, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_info(format, arg...) \ + RTE_LOG(INFO, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_warn(format, arg...) \ + RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#define ena_trc_err(format, arg...) \ + RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg) +#else +#define ena_trc_dbg(format, arg...) do { } while (0) +#define ena_trc_info(format, arg...) do { } while (0) +#define ena_trc_warn(format, arg...) do { } while (0) +#define ena_trc_err(format, arg...) do { } while (0) +#endif /* RTE_LIBRTE_ENA_COM_DEBUG */ + +/* Spinlock related methods */ +#define ena_spinlock_t rte_spinlock_t +#define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&spinlock) +#define ENA_SPINLOCK_LOCK(spinlock, flags) \ + ({(void)flags; rte_spinlock_lock(&spinlock); }) +#define ENA_SPINLOCK_UNLOCK(spinlock, flags) \ + ({(void)flags; rte_spinlock_unlock(&(spinlock)); }) + +#define q_waitqueue_t \ + struct { \ + pthread_cond_t cond; \ + pthread_mutex_t mutex; \ + } + +#define ena_wait_queue_t q_waitqueue_t + +#define ENA_WAIT_EVENT_INIT(waitqueue) \ + do { \ + pthread_mutex_init(&(waitqueue).mutex, NULL); \ + pthread_cond_init(&(waitqueue).cond, NULL); \ + } while (0) + +#define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \ + do { \ + struct timespec wait; \ + struct timeval now; \ + unsigned long timeout_us; \ + gettimeofday(&now, NULL); \ + wait.tv_sec = now.tv_sec + timeout / 1000000UL; \ + timeout_us = timeout % 1000000UL; \ + wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \ + pthread_mutex_lock(&waitevent.mutex); \ + pthread_cond_timedwait(&waitevent.cond, \ + &waitevent.mutex, &wait); \ + pthread_mutex_unlock(&waitevent.mutex); \ + } while (0) +#define ENA_WAIT_EVENT_SIGNAL(waitevent) pthread_cond_signal(&waitevent.cond) +/* pthread condition doesn't need to be rearmed after usage */ +#define ENA_WAIT_EVENT_CLEAR(...) + +#define ena_wait_event_t ena_wait_queue_t +#define ENA_MIGHT_SLEEP() + +#define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle) \ + do { \ + const struct rte_memzone *mz; \ + char z_name[RTE_MEMZONE_NAMESIZE]; \ + (void)dmadev; (void)handle; \ + snprintf(z_name, sizeof(z_name), \ + "ena_alloc_%d", ena_alloc_cnt++); \ + mz = rte_memzone_reserve(z_name, size, SOCKET_ID_ANY, 0); \ + virt = mz->addr; \ + phys = mz->phys_addr; \ + } while (0) +#define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) \ + ({(void)size; rte_free(virt); }) +#define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1) +#define ENA_MEM_FREE(dmadev, ptr) ({(void)dmadev; rte_free(ptr); }) + +static inline void writel(u32 value, volatile void *addr) +{ + *(volatile u32 *)addr = value; +} + +static inline u32 readl(const volatile void *addr) +{ + return *(const volatile u32 *)addr; +} + +#define ENA_REG_WRITE32(value, reg) writel((value), (reg)) +#define ENA_REG_READ32(reg) readl((reg)) + +#define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr) +#define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr) +#define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val) +#define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr) + +#define msleep(x) rte_delay_us(x * 1000) +#define udelay(x) rte_delay_us(x) + +#define MAX_ERRNO 4095 +#define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO) +#define ERR_PTR(error) ((void *)(long)error) +#define PTR_ERR(error) ((long)(void *)error) +#define might_sleep() + +#endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */