diff options
Diffstat (limited to 'drivers/infiniband/hw/ionic/ionic_pgtbl.c')
| -rw-r--r-- | drivers/infiniband/hw/ionic/ionic_pgtbl.c | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/ionic/ionic_pgtbl.c b/drivers/infiniband/hw/ionic/ionic_pgtbl.c index a8eb73be6f86..e74db73c9246 100644 --- a/drivers/infiniband/hw/ionic/ionic_pgtbl.c +++ b/drivers/infiniband/hw/ionic/ionic_pgtbl.c @@ -26,6 +26,17 @@ __le64 ionic_pgtbl_dma(struct ionic_tbl_buf *buf, u64 va) return cpu_to_le64(dma + (va & pg_mask)); } +__be64 ionic_pgtbl_off(struct ionic_tbl_buf *buf, u64 va) +{ + if (buf->tbl_pages > 1) { + u64 pg_mask = BIT_ULL(buf->page_size_log2) - 1; + + return cpu_to_be64(va & pg_mask); + } + + return 0; +} + int ionic_pgtbl_page(struct ionic_tbl_buf *buf, u64 dma) { if (unlikely(buf->tbl_pages == buf->tbl_limit)) |