diff options
Diffstat (limited to 'drivers/dma/ioat/hw.h')
| -rw-r--r-- | drivers/dma/ioat/hw.h | 6 |
1 files changed, 5 insertions, 1 deletions
diff --git a/drivers/dma/ioat/hw.h b/drivers/dma/ioat/hw.h index e13f3ed4..7481fb1 100644 --- a/drivers/dma/ioat/hw.h +++ b/drivers/dma/ioat/hw.h @@ -63,7 +63,11 @@ struct ioat_dma_descriptor { uint64_t next; uint64_t rsv1; uint64_t rsv2; - uint64_t user1; + /* store some driver data in an unused portion of the descriptor */ + union { + uint64_t user1; + uint64_t tx_cnt; + }; uint64_t user2; }; #endif |
