d/numam-dpdk
1
0
Fork 0
Code Issues Pull Requests Projects Releases Wiki Activity

net/sfc: use eal I/O device memory barriers API

Browse Source 
The previous version relied on the fact that DMA sync for device and
PIO write barrier in pair. Now each does its job.

Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
This commit is contained in:
Andrew Rybchenko 2017-01-20 13:53:51 +00:00 committed by Ferruh Yigit
parent c4378dacc4
commit 7a7cfb7a75
1 changed files with 4 additions and 2 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

6
drivers/net/sfc/efsys.h
View File

@ -612,7 +612,7 @@ typedef struct efsys_bar_s {
/* BARRIERS */
#define EFSYS_MEM_READ_BARRIER() rte_rmb()
#define EFSYS_PIO_WRITE_BARRIER() rte_wmb()
#define EFSYS_PIO_WRITE_BARRIER() rte_io_wmb()
/* DMA SYNC */
@ -623,7 +623,9 @@ typedef struct efsys_bar_s {
*/
#define EFSYS_DMA_SYNC_FOR_KERNEL(_esmp, _offset, _size) ((void)0)
#define EFSYS_DMA_SYNC_FOR_DEVICE(_esmp, _offset, _size) ((void)0)
/* Just avoid store and compiler (impliciltly) reordering */
#define EFSYS_DMA_SYNC_FOR_DEVICE(_esmp, _offset, _size) rte_wmb()
/* TIMESTAMP */