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IB/mlx5: Remove check of FW capabilities in ODP page fault handling

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As page fault handling is initiated by FW, there is no need to check that
the ODP supports the operation and transport.

Link: https://lore.kernel.org/r/20190819120815.21225-3-leon@kernel.org
Signed-off-by: Michael Guralnik <michaelgur@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Michael Guralnik 2019-08-19 15:08:14 +03:00 committed by Jason Gunthorpe
parent 00679b631e
commit 29af94987b
1 changed files with 1 additions and 47 deletions
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48
drivers/infiniband/hw/mlx5/odp.c
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@ -990,17 +990,6 @@ static int pagefault_data_segments(struct mlx5_ib_dev *dev,
return ret < 0 ? ret : npages;
}
static const u32 mlx5_ib_odp_opcode_cap[] = {
[MLX5_OPCODE_SEND] = IB_ODP_SUPPORT_SEND,
[MLX5_OPCODE_SEND_IMM] = IB_ODP_SUPPORT_SEND,
[MLX5_OPCODE_SEND_INVAL] = IB_ODP_SUPPORT_SEND,
[MLX5_OPCODE_RDMA_WRITE] = IB_ODP_SUPPORT_WRITE,
[MLX5_OPCODE_RDMA_WRITE_IMM] = IB_ODP_SUPPORT_WRITE,
[MLX5_OPCODE_RDMA_READ] = IB_ODP_SUPPORT_READ,
[MLX5_OPCODE_ATOMIC_CS] = IB_ODP_SUPPORT_ATOMIC,
[MLX5_OPCODE_ATOMIC_FA] = IB_ODP_SUPPORT_ATOMIC,
};
/*
* Parse initiator WQE. Advances the wqe pointer to point at the
* scatter-gather list, and set wqe_end to the end of the WQE.
@ -1011,7 +1000,6 @@ static int mlx5_ib_mr_initiator_pfault_handler(
{
struct mlx5_wqe_ctrl_seg *ctrl = *wqe;
u16 wqe_index = pfault->wqe.wqe_index;
u32 transport_caps;
struct mlx5_base_av *av;
unsigned ds, opcode;
#if defined(DEBUG)
@ -1059,29 +1047,8 @@ static int mlx5_ib_mr_initiator_pfault_handler(
opcode = be32_to_cpu(ctrl->opmod_idx_opcode) &
MLX5_WQE_CTRL_OPCODE_MASK;
switch (qp->ibqp.qp_type) {
case IB_QPT_XRC_INI:
if (qp->ibqp.qp_type == IB_QPT_XRC_INI)
*wqe += sizeof(struct mlx5_wqe_xrc_seg);
transport_caps = dev->odp_caps.per_transport_caps.xrc_odp_caps;
break;
case IB_QPT_RC:
transport_caps = dev->odp_caps.per_transport_caps.rc_odp_caps;
break;
case IB_QPT_UD:
transport_caps = dev->odp_caps.per_transport_caps.ud_odp_caps;
break;
default:
mlx5_ib_err(dev, "ODP fault on QP of an unsupported transport 0x%x\n",
qp->ibqp.qp_type);
return -EFAULT;
}
if (unlikely(opcode >= ARRAY_SIZE(mlx5_ib_odp_opcode_cap) ||
!(transport_caps & mlx5_ib_odp_opcode_cap[opcode]))) {
mlx5_ib_err(dev, "ODP fault on QP of an unsupported opcode 0x%x\n",
opcode);
return -EFAULT;
}
if (qp->ibqp.qp_type == IB_QPT_UD) {
av = *wqe;
@ -1146,19 +1113,6 @@ static int mlx5_ib_mr_responder_pfault_handler_rq(struct mlx5_ib_dev *dev,
return -EFAULT;
}
switch (qp->ibqp.qp_type) {
case IB_QPT_RC:
if (!(dev->odp_caps.per_transport_caps.rc_odp_caps &
IB_ODP_SUPPORT_RECV))
goto invalid_transport_or_opcode;
break;
default:
invalid_transport_or_opcode:
mlx5_ib_err(dev, "ODP fault on QP of an unsupported transport. transport: 0x%x\n",
qp->ibqp.qp_type);
return -EFAULT;
}
*wqe_end = wqe + wqe_size;
return 0;