diff options
| author | Eli Cohen <eli@dev.mellanox.co.il> | 2013-10-23 09:53:19 +0300 |
|---|---|---|
| committer | Roland Dreier <roland@purestorage.com> | 2013-11-08 14:43:00 -0800 |
| commit | bf0bf77f6519e5dcd57a77b47e1d151c1e81b7ec (patch) | |
| tree | 18f449ec92393cb3f828c9f9c95c25234f807d3a /drivers/infiniband/hw/mlx5/qp.c | |
| parent | 952f5f6e807ba82e1b82fcfcf7f73db022342aa7 (diff) | |
| download | blackbird-op-linux-bf0bf77f6519e5dcd57a77b47e1d151c1e81b7ec.tar.gz blackbird-op-linux-bf0bf77f6519e5dcd57a77b47e1d151c1e81b7ec.zip | |
mlx5: Support communicating arbitrary host page size to firmware
Connect-IB firmware requires 4K pages to be communicated with the
driver. This patch breaks larger pages to 4K units to enable support
for architectures utilizing larger page size, such as PowerPC. This
patch also fixes several places that referred to PAGE_SHIFT instead of
explicit 12 which is the inherent page shift on Connect-IB.
Signed-off-by: Eli Cohen <eli@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 4 |
1 files changed, 2 insertions, 2 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 8a36fd78c89f..ce14008a5702 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -551,7 +551,7 @@ static int create_user_qp(struct mlx5_ib_dev *dev, struct ib_pd *pd, } mlx5_ib_populate_pas(dev, qp->umem, page_shift, (*in)->pas, 0); (*in)->ctx.log_pg_sz_remote_qpn = - cpu_to_be32((page_shift - PAGE_SHIFT) << 24); + cpu_to_be32((page_shift - 12) << 24); (*in)->ctx.params2 = cpu_to_be32(offset << 6); (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); @@ -648,7 +648,7 @@ static int create_kernel_qp(struct mlx5_ib_dev *dev, goto err_buf; } (*in)->ctx.qp_counter_set_usr_page = cpu_to_be32(uar_index); - (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - PAGE_SHIFT) << 24); + (*in)->ctx.log_pg_sz_remote_qpn = cpu_to_be32((qp->buf.page_shift - 12) << 24); /* Set "fast registration enabled" for all kernel QPs */ (*in)->ctx.params1 |= cpu_to_be32(1 << 11); (*in)->ctx.sq_crq_size |= cpu_to_be16(1 << 4); |
