diff options
| author |   Shani Michaeli <shanim@mellanox.com> | 2013-02-06 16:19:15 +0000 |
|---|---|---|
| committer |   Roland Dreier <roland@purestorage.com> | 2013-02-25 10:44:32 -0800 |
| commit | 6ff63e194066a1f14aee805366a1d79c541fddae (patch) | |
| tree | d619416f696cf6859587fa5875845609a9ba6a4e /drivers/infiniband/hw/mlx4/mr.c | |
| parent | mlx4: Implement memory windows allocation and deallocation (diff) | |
| download | linux-dev-6ff63e194066a1f14aee805366a1d79c541fddae.tar.xz linux-dev-6ff63e194066a1f14aee805366a1d79c541fddae.zip | |
IB/mlx4: Support memory window binding
* Implement memory windows binding in mlx4_ib_post_send.
* Implement mlx4_ib_bind_mw by deferring to mlx4_ib_post_send.
* Rename MLX4_WQE_FMR_PERM_* flags to MLX4_WQE_FMR_AND_BIND_PERM_*,
indicating that they are used both for fast registration work
requests, and for memory window bind work requests.
Signed-off-by: Haggai Eran <haggaie@mellanox.com>
Signed-off-by: Shani Michaeli <shanim@mellanox.com>
Signed-off-by: Or Gerlitz <ogerlitz@mellanox.com>
Signed-off-by: Roland Dreier <roland@purestorage.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx4/mr.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx4/mr.c | 22 |
1 files changed, 22 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx4/mr.c b/drivers/infiniband/hw/mlx4/mr.c index 5adf4c47ee18..e471f089ff00 100644 --- a/drivers/infiniband/hw/mlx4/mr.c +++ b/drivers/infiniband/hw/mlx4/mr.c @@ -231,6 +231,28 @@ err_free: return ERR_PTR(err); } +int mlx4_ib_bind_mw(struct ib_qp *qp, struct ib_mw *mw, + struct ib_mw_bind *mw_bind) +{ + struct ib_send_wr wr; + struct ib_send_wr *bad_wr; + int ret; + + memset(&wr, 0, sizeof(wr)); + wr.opcode = IB_WR_BIND_MW; + wr.wr_id = mw_bind->wr_id; + wr.send_flags = mw_bind->send_flags; + wr.wr.bind_mw.mw = mw; + wr.wr.bind_mw.bind_info = mw_bind->bind_info; + wr.wr.bind_mw.rkey = ib_inc_rkey(mw->rkey); + + ret = mlx4_ib_post_send(qp, &wr, &bad_wr); + if (!ret) + mw->rkey = wr.wr.bind_mw.rkey; + + return ret; +} + int mlx4_ib_dealloc_mw(struct ib_mw *ibmw) { struct mlx4_ib_mw *mw = to_mmw(ibmw); |