diff options
| author | Bob Pearson <rpearsonhpe@gmail.com> | 2023-01-20 02:59:33 +0300 |
|---|---|---|
| committer | Jason Gunthorpe <jgg@nvidia.com> | 2023-01-26 22:04:45 +0300 |
| commit | db4729a5251992ed535da09c0fcf9b590ac7fe6c (patch) | |
| tree | 1a3e38f9a89c1e7c8f06c80156a72a3422323f52 /drivers/infiniband/sw/rxe/rxe_mr.c | |
| parent | ade58da2a73de1b65616e4b1080dc078d1ce0b5d (diff) | |
| download | linux-db4729a5251992ed535da09c0fcf9b590ac7fe6c.tar.xz | |
RDMA/rxe: Move rxe_map_mr_sg to rxe_mr.c
Move rxe_map_mr_sg() to rxe_mr.c where it makes a little more sense.
Link: https://lore.kernel.org/r/20230119235936.19728-3-rpearsonhpe@gmail.com
Signed-off-by: Bob Pearson <rpearsonhpe@gmail.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
Diffstat (limited to 'drivers/infiniband/sw/rxe/rxe_mr.c')
| -rw-r--r-- | drivers/infiniband/sw/rxe/rxe_mr.c | 36 |
1 files changed, 36 insertions, 0 deletions
diff --git a/drivers/infiniband/sw/rxe/rxe_mr.c b/drivers/infiniband/sw/rxe/rxe_mr.c index 632ee1e516a1..229c7259644c 100644 --- a/drivers/infiniband/sw/rxe/rxe_mr.c +++ b/drivers/infiniband/sw/rxe/rxe_mr.c @@ -223,6 +223,42 @@ err1: return err; } +static int rxe_set_page(struct ib_mr *ibmr, u64 addr) +{ + struct rxe_mr *mr = to_rmr(ibmr); + struct rxe_map *map; + struct rxe_phys_buf *buf; + + if (unlikely(mr->nbuf == mr->num_buf)) + return -ENOMEM; + + map = mr->map[mr->nbuf / RXE_BUF_PER_MAP]; + buf = &map->buf[mr->nbuf % RXE_BUF_PER_MAP]; + + buf->addr = addr; + buf->size = ibmr->page_size; + mr->nbuf++; + + return 0; +} + +int rxe_map_mr_sg(struct ib_mr *ibmr, struct scatterlist *sg, + int sg_nents, unsigned int *sg_offset) +{ + struct rxe_mr *mr = to_rmr(ibmr); + int n; + + mr->nbuf = 0; + + n = ib_sg_to_pages(ibmr, sg, sg_nents, sg_offset, rxe_set_page); + + mr->page_shift = ilog2(ibmr->page_size); + mr->page_mask = ibmr->page_size - 1; + mr->offset = ibmr->iova & mr->page_mask; + + return n; +} + static void lookup_iova(struct rxe_mr *mr, u64 iova, int *m_out, int *n_out, size_t *offset_out) { |