ce8628c66a
Issue has been observed in case of multi segments where mbuf
data gets corrupted due to missing barriers. Changes made to
mbuf just before LMTST by one core gets updatded when the
same mbuf is in use by another core, leading to corruption.
It should be ensured that all changes made to mbuf should be
written before LMTST.
Fixes: cbd5710db48d ("net/octeontx2: add Tx multi segment version")
Cc: stable@dpdk.org
Signed-off-by: Pavan Nikhilesh <pbhagavatula@marvell.com>
Signed-off-by: Nithin Dabilpuram <ndabilpuram@marvell.com>
Signed-off-by: Harman Kalra <hkalra@marvell.com>
76 lines
1.5 KiB
C
76 lines
1.5 KiB
C
/* SPDX-License-Identifier: BSD-3-Clause
|
|
* Copyright(C) 2019 Marvell International Ltd.
|
|
*/
|
|
|
|
#ifndef _OTX2_IO_GENERIC_H_
|
|
#define _OTX2_IO_GENERIC_H_
|
|
|
|
#include <string.h>
|
|
|
|
#define otx2_load_pair(val0, val1, addr) \
|
|
do { \
|
|
val0 = rte_read64_relaxed((void *)(addr)); \
|
|
val1 = rte_read64_relaxed((uint8_t *)(addr) + 8); \
|
|
} while (0)
|
|
|
|
#define otx2_store_pair(val0, val1, addr) \
|
|
do { \
|
|
rte_write64_relaxed(val0, (void *)(addr)); \
|
|
rte_write64_relaxed(val1, (((uint8_t *)(addr)) + 8)); \
|
|
} while (0)
|
|
|
|
#define otx2_prefetch_store_keep(ptr) do {} while (0)
|
|
|
|
static inline uint64_t
|
|
otx2_atomic64_add_nosync(int64_t incr, int64_t *ptr)
|
|
{
|
|
RTE_SET_USED(ptr);
|
|
RTE_SET_USED(incr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline uint64_t
|
|
otx2_atomic64_add_sync(int64_t incr, int64_t *ptr)
|
|
{
|
|
RTE_SET_USED(ptr);
|
|
RTE_SET_USED(incr);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int64_t
|
|
otx2_lmt_submit(uint64_t io_address)
|
|
{
|
|
RTE_SET_USED(io_address);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static inline int64_t
|
|
otx2_lmt_submit_release(uint64_t io_address)
|
|
{
|
|
RTE_SET_USED(io_address);
|
|
|
|
return 0;
|
|
}
|
|
|
|
static __rte_always_inline void
|
|
otx2_lmt_mov(void *out, const void *in, const uint32_t lmtext)
|
|
{
|
|
/* Copy four words if lmtext = 0
|
|
* six words if lmtext = 1
|
|
* eight words if lmtext =2
|
|
*/
|
|
memcpy(out, in, (4 + (2 * lmtext)) * sizeof(uint64_t));
|
|
}
|
|
|
|
static __rte_always_inline void
|
|
otx2_lmt_mov_seg(void *out, const void *in, const uint16_t segdw)
|
|
{
|
|
RTE_SET_USED(out);
|
|
RTE_SET_USED(in);
|
|
RTE_SET_USED(segdw);
|
|
}
|
|
#endif /* _OTX2_IO_GENERIC_H_ */
|