46916aa17d
Need to check if memory allocation succeed before using it.
Using memset on NULL pointer cause segfault.
Fixes: 9ba7981ec9 ("ena: add communication layer for DPDK")
Cc: stable@dpdk.org
Signed-off-by: Rafal Kozik <rk@semihalf.com>
Acked-by: Michal Krawczyk <mk@semihalf.com>
292 lines
9.6 KiB
C
292 lines
9.6 KiB
C
/*-
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* BSD LICENSE
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*
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* Copyright (c) 2015-2016 Amazon.com, Inc. or its affiliates.
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* All rights reserved.
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions
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* are met:
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*
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* * Redistributions of source code must retain the above copyright
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* notice, this list of conditions and the following disclaimer.
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* * Redistributions in binary form must reproduce the above copyright
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* notice, this list of conditions and the following disclaimer in
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* the documentation and/or other materials provided with the
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* distribution.
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* * Neither the name of copyright holder nor the names of its
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* contributors may be used to endorse or promote products derived
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* from this software without specific prior written permission.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS
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* "AS IS" AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT
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* LIMITED TO, THE IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR
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* A PARTICULAR PURPOSE ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT
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* OWNER OR CONTRIBUTORS BE LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL,
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* SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT
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* LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES; LOSS OF USE,
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* DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY
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* THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
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* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE
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* OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
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*/
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#ifndef DPDK_ENA_COM_ENA_PLAT_DPDK_H_
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#define DPDK_ENA_COM_ENA_PLAT_DPDK_H_
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#include <stdbool.h>
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#include <stdlib.h>
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#include <pthread.h>
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#include <stdint.h>
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#include <string.h>
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#include <errno.h>
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#include <rte_atomic.h>
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#include <rte_branch_prediction.h>
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#include <rte_cycles.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_memzone.h>
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#include <rte_spinlock.h>
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#include <sys/time.h>
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typedef uint64_t u64;
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typedef uint32_t u32;
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typedef uint16_t u16;
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typedef uint8_t u8;
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typedef uint64_t dma_addr_t;
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#ifndef ETIME
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#define ETIME ETIMEDOUT
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#endif
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#define ena_atomic32_t rte_atomic32_t
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#define ena_mem_handle_t const struct rte_memzone *
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#define SZ_256 (256U)
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#define SZ_4K (4096U)
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#define ENA_COM_OK 0
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#define ENA_COM_NO_MEM -ENOMEM
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#define ENA_COM_INVAL -EINVAL
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#define ENA_COM_NO_SPACE -ENOSPC
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#define ENA_COM_NO_DEVICE -ENODEV
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#define ENA_COM_TIMER_EXPIRED -ETIME
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#define ENA_COM_FAULT -EFAULT
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#define ENA_COM_TRY_AGAIN -EAGAIN
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#define ENA_COM_UNSUPPORTED -EOPNOTSUPP
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#define ____cacheline_aligned __rte_cache_aligned
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#define ENA_ABORT() abort()
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#define ENA_MSLEEP(x) rte_delay_ms(x)
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#define ENA_UDELAY(x) rte_delay_us(x)
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#define ENA_TOUCH(x) ((void)(x))
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#define memcpy_toio memcpy
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#define wmb rte_wmb
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#define rmb rte_wmb
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#define mb rte_mb
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#define __iomem
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#define US_PER_S 1000000
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#define ENA_GET_SYSTEM_USECS() \
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(rte_get_timer_cycles() * US_PER_S / rte_get_timer_hz())
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#if RTE_LOG_DP_LEVEL >= RTE_LOG_DEBUG
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#define ENA_ASSERT(cond, format, arg...) \
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do { \
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if (unlikely(!(cond))) { \
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RTE_LOG(ERR, PMD, format, ##arg); \
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rte_panic("line %d\tassert \"" #cond "\"" \
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"failed\n", __LINE__); \
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} \
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} while (0)
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#else
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#define ENA_ASSERT(cond, format, arg...) do {} while (0)
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#endif
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#define ENA_MAX32(x, y) RTE_MAX((x), (y))
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#define ENA_MAX16(x, y) RTE_MAX((x), (y))
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#define ENA_MAX8(x, y) RTE_MAX((x), (y))
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#define ENA_MIN32(x, y) RTE_MIN((x), (y))
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#define ENA_MIN16(x, y) RTE_MIN((x), (y))
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#define ENA_MIN8(x, y) RTE_MIN((x), (y))
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#define U64_C(x) x ## ULL
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#define BIT(nr) (1UL << (nr))
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#define BITS_PER_LONG (__SIZEOF_LONG__ * 8)
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#define GENMASK(h, l) (((~0UL) << (l)) & (~0UL >> (BITS_PER_LONG - 1 - (h))))
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#define GENMASK_ULL(h, l) (((U64_C(1) << ((h) - (l) + 1)) - 1) << (l))
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#ifdef RTE_LIBRTE_ENA_COM_DEBUG
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#define ena_trc_dbg(format, arg...) \
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RTE_LOG(DEBUG, PMD, "[ENA_COM: %s] " format, __func__, ##arg)
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#define ena_trc_info(format, arg...) \
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RTE_LOG(INFO, PMD, "[ENA_COM: %s] " format, __func__, ##arg)
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#define ena_trc_warn(format, arg...) \
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RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg)
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#define ena_trc_err(format, arg...) \
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RTE_LOG(ERR, PMD, "[ENA_COM: %s] " format, __func__, ##arg)
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#else
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#define ena_trc_dbg(format, arg...) do { } while (0)
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#define ena_trc_info(format, arg...) do { } while (0)
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#define ena_trc_warn(format, arg...) do { } while (0)
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#define ena_trc_err(format, arg...) do { } while (0)
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#endif /* RTE_LIBRTE_ENA_COM_DEBUG */
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#define ENA_WARN(cond, format, arg...) \
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do { \
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if (unlikely(cond)) { \
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ena_trc_err( \
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"Warn failed on %s:%s:%d:" format, \
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__FILE__, __func__, __LINE__, ##arg); \
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} \
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} while (0)
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/* Spinlock related methods */
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#define ena_spinlock_t rte_spinlock_t
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#define ENA_SPINLOCK_INIT(spinlock) rte_spinlock_init(&spinlock)
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#define ENA_SPINLOCK_LOCK(spinlock, flags) \
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({(void)flags; rte_spinlock_lock(&spinlock); })
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#define ENA_SPINLOCK_UNLOCK(spinlock, flags) \
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({(void)flags; rte_spinlock_unlock(&(spinlock)); })
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#define q_waitqueue_t \
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struct { \
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pthread_cond_t cond; \
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pthread_mutex_t mutex; \
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}
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#define ena_wait_queue_t q_waitqueue_t
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#define ENA_WAIT_EVENT_INIT(waitqueue) \
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do { \
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pthread_mutex_init(&(waitqueue).mutex, NULL); \
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pthread_cond_init(&(waitqueue).cond, NULL); \
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} while (0)
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#define ENA_WAIT_EVENT_WAIT(waitevent, timeout) \
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do { \
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struct timespec wait; \
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struct timeval now; \
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unsigned long timeout_us; \
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gettimeofday(&now, NULL); \
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wait.tv_sec = now.tv_sec + timeout / 1000000UL; \
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timeout_us = timeout % 1000000UL; \
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wait.tv_nsec = (now.tv_usec + timeout_us) * 1000UL; \
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pthread_mutex_lock(&waitevent.mutex); \
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pthread_cond_timedwait(&waitevent.cond, \
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&waitevent.mutex, &wait); \
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pthread_mutex_unlock(&waitevent.mutex); \
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} while (0)
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#define ENA_WAIT_EVENT_SIGNAL(waitevent) pthread_cond_signal(&waitevent.cond)
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/* pthread condition doesn't need to be rearmed after usage */
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#define ENA_WAIT_EVENT_CLEAR(...)
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#define ENA_WAIT_EVENT_DESTROY(waitqueue) ((void)(waitqueue))
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#define ena_wait_event_t ena_wait_queue_t
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#define ENA_MIGHT_SLEEP()
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#define ENA_TIME_EXPIRE(timeout) (timeout < rte_get_timer_cycles())
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#define ENA_GET_SYSTEM_TIMEOUT(timeout_us) \
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(timeout_us * rte_get_timer_hz() / 1000000 + rte_get_timer_cycles())
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/*
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* Each rte_memzone should have unique name.
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* To satisfy it, count number of allocations and add it to name.
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*/
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extern uint32_t ena_alloc_cnt;
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#define ENA_MEM_ALLOC_COHERENT(dmadev, size, virt, phys, handle) \
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do { \
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const struct rte_memzone *mz; \
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char z_name[RTE_MEMZONE_NAMESIZE]; \
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ENA_TOUCH(dmadev); ENA_TOUCH(handle); \
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snprintf(z_name, sizeof(z_name), \
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"ena_alloc_%d", ena_alloc_cnt++); \
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mz = rte_memzone_reserve(z_name, size, SOCKET_ID_ANY, \
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RTE_MEMZONE_IOVA_CONTIG); \
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handle = mz; \
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if (mz == NULL) { \
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virt = NULL; \
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phys = 0; \
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} else { \
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memset(mz->addr, 0, size); \
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virt = mz->addr; \
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phys = mz->iova; \
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} \
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} while (0)
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#define ENA_MEM_FREE_COHERENT(dmadev, size, virt, phys, handle) \
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({ ENA_TOUCH(size); ENA_TOUCH(phys); \
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ENA_TOUCH(dmadev); \
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rte_memzone_free(handle); })
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#define ENA_MEM_ALLOC_COHERENT_NODE( \
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dmadev, size, virt, phys, mem_handle, node, dev_node) \
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do { \
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const struct rte_memzone *mz; \
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char z_name[RTE_MEMZONE_NAMESIZE]; \
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ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \
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snprintf(z_name, sizeof(z_name), \
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"ena_alloc_%d", ena_alloc_cnt++); \
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mz = rte_memzone_reserve(z_name, size, node, \
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RTE_MEMZONE_IOVA_CONTIG); \
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if (mz == NULL) { \
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virt = NULL; \
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phys = 0; \
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} else { \
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memset(mz->addr, 0, size); \
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virt = mz->addr; \
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phys = mz->iova; \
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} \
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(void)mem_handle; \
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} while (0)
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#define ENA_MEM_ALLOC_NODE(dmadev, size, virt, node, dev_node) \
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do { \
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const struct rte_memzone *mz; \
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char z_name[RTE_MEMZONE_NAMESIZE]; \
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ENA_TOUCH(dmadev); ENA_TOUCH(dev_node); \
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snprintf(z_name, sizeof(z_name), \
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"ena_alloc_%d", ena_alloc_cnt++); \
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mz = rte_memzone_reserve(z_name, size, node, \
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RTE_MEMZONE_IOVA_CONTIG); \
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memset(mz->addr, 0, size); \
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virt = mz->addr; \
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} while (0)
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#define ENA_MEM_ALLOC(dmadev, size) rte_zmalloc(NULL, size, 1)
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#define ENA_MEM_FREE(dmadev, ptr) ({ENA_TOUCH(dmadev); rte_free(ptr); })
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#define ENA_REG_WRITE32(bus, value, reg) \
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({ (void)(bus); rte_write32_relaxed((value), (reg)); })
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#define ENA_REG_READ32(bus, reg) \
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({ (void)(bus); rte_read32_relaxed((reg)); })
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#define ATOMIC32_INC(i32_ptr) rte_atomic32_inc(i32_ptr)
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#define ATOMIC32_DEC(i32_ptr) rte_atomic32_dec(i32_ptr)
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#define ATOMIC32_SET(i32_ptr, val) rte_atomic32_set(i32_ptr, val)
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#define ATOMIC32_READ(i32_ptr) rte_atomic32_read(i32_ptr)
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#define msleep(x) rte_delay_us(x * 1000)
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#define udelay(x) rte_delay_us(x)
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#define MAX_ERRNO 4095
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#define IS_ERR(x) (((unsigned long)x) >= (unsigned long)-MAX_ERRNO)
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#define ERR_PTR(error) ((void *)(long)error)
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#define PTR_ERR(error) ((long)(void *)error)
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#define might_sleep()
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#define lower_32_bits(x) ((uint32_t)(x))
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#define upper_32_bits(x) ((uint32_t)(((x) >> 16) >> 16))
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#ifndef READ_ONCE
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#define READ_ONCE(var) (*((volatile typeof(var) *)(&(var))))
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#endif
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#endif /* DPDK_ENA_COM_ENA_PLAT_DPDK_H_ */
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