diff options
| author | Haggai Abramovsky <hagaya@mellanox.com> | 2016-01-14 17:12:57 (GMT) |
|---|---|---|
| committer | Doug Ledford <dledford@redhat.com> | 2016-01-21 17:01:08 (GMT) |
| commit | cfb5e088e26ae0e12064171f645ed022cf6d55b9 (patch) | |
| tree | 2bc007034ab67b4584285d320ecb96c555fe2531 /drivers/infiniband/hw/mlx5/qp.c | |
| parent | dfbee8598d24668b882bcc97d28d5108441cc88a (diff) | |
| download | linux-cfb5e088e26ae0e12064171f645ed022cf6d55b9.tar.xz | |
IB/mlx5: Add CQE version 1 support to user QPs and SRQs
Enforce working with CQE version 1 when the user supports CQE
version 1 and asked to work this way.
If the user still works with CQE version 0, then use the default
CQE version to tell the Firmware that the user still works in the
older mode.
After this patch, the kernel still reports CQE version 0.
Signed-off-by: Haggai Abramovsky <hagaya@mellanox.com>
Reviewed-by: Matan Barak <matanb@mellanox.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/mlx5/qp.c')
| -rw-r--r-- | drivers/infiniband/hw/mlx5/qp.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/mlx5/qp.c b/drivers/infiniband/hw/mlx5/qp.c index 1ea049e..5c92d08 100644 --- a/drivers/infiniband/hw/mlx5/qp.c +++ b/drivers/infiniband/hw/mlx5/qp.c @@ -33,6 +33,7 @@ #include <linux/module.h> #include <rdma/ib_umem.h> #include <rdma/ib_cache.h> +#include <rdma/ib_user_verbs.h> #include "mlx5_ib.h" #include "user.h" @@ -870,6 +871,8 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, struct mlx5_ib_create_qp ucmd; int inlen = sizeof(*in); int err; + u32 uidx = MLX5_IB_DEFAULT_UIDX; + void *qpc; mlx5_ib_odp_create_qp(qp); @@ -910,6 +913,11 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, return -EFAULT; } + err = get_qp_user_index(to_mucontext(pd->uobject->context), + &ucmd, udata->inlen, &uidx); + if (err) + return err; + qp->wq_sig = !!(ucmd.flags & MLX5_QP_FLAG_SIGNATURE); qp->scat_cqe = !!(ucmd.flags & MLX5_QP_FLAG_SCATTER_CQE); } else { @@ -1046,6 +1054,12 @@ static int create_qp_common(struct mlx5_ib_dev *dev, struct ib_pd *pd, in->ctx.db_rec_addr = cpu_to_be64(qp->db.dma); + if (MLX5_CAP_GEN(mdev, cqe_version) == MLX5_CQE_VERSION_V1) { + qpc = MLX5_ADDR_OF(create_qp_in, in, qpc); + /* 0xffffff means we ask to work with cqe version 0 */ + MLX5_SET(qpc, qpc, user_index, uidx); + } + err = mlx5_core_create_qp(dev->mdev, &qp->mqp, in, inlen); if (err) { mlx5_ib_dbg(dev, "create qp failed\n"); |