> -----Original Message-----
> From: David Hu <[email protected]>
> Sent: Friday, October 30, 2026 7:15 PM
> To: Mustafa Ismail <[email protected]>; Shiraz Saleem
> <[email protected]>; Leon Romanovsky <[email protected]>; Jason
> Gunthorpe <[email protected]>
> Cc: Jacob Moroni <[email protected]>; [email protected];
> [email protected]; [email protected]; David, Hu
> <[email protected]>
> Subject: [PATCH rdma-next v4 2/6] RDMA/irdma: Register irdma UVERBS
> ioctl namespace
>
> From: David Hu <[email protected]>
>
> An irdma UVERBS module is now created. An irdma specific shadow buf is
> defined for CQ, while QP and SRQ reuses core's uapi definitions. This
> works since core builds shared core ioctl parsing tree first, before
> adding driver specific `uapi_definition`.
>
> Destroy paths are automatically handled by core dispatchers, as objects
> are now registered in the parsing tree and no additional driver
> specifics are needed in destroy ioctls. Resize, Query, and Modify
> continue to go through write() cmds.
>
> Signed-off-by: David Hu <[email protected]>
> ---
> drivers/infiniband/hw/irdma/verbs.c | 18 ++++++++++++++++++
> include/uapi/rdma/irdma-abi.h | 5 +++++
> 2 files changed, 23 insertions(+)
>
> diff --git a/drivers/infiniband/hw/irdma/verbs.c
> b/drivers/infiniband/hw/irdma/verbs.c
> index 811b1d532599..dd824720671c 100644
> --- a/drivers/infiniband/hw/irdma/verbs.c
> +++ b/drivers/infiniband/hw/irdma/verbs.c
> @@ -1,6 +1,22 @@
> // SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
> /* Copyright (c) 2015 - 2021 Intel Corporation */ #include "main.h"
> +#include <rdma/uverbs_ioctl.h>
> +#define UVERBS_MODULE_NAME irdma
> +#include <rdma/uverbs_named_ioctl.h>
> +#include <rdma/ib_user_ioctl_cmds.h>
> +
> +ADD_UVERBS_ATTRIBUTES_SIMPLE(
> + irdma_cq_attrs,
> + UVERBS_OBJECT_CQ,
> + UVERBS_METHOD_CQ_CREATE,
> + UVERBS_ATTR_UMEM(IRDMA_IB_ATTR_CREATE_CQ_SHADOW_BUF_UMEM,
> UA_OPTIONAL)
> +);
> +
> +static const struct uapi_definition irdma_uapi_defs[] = {
> + UAPI_DEF_CHAIN_OBJ_TREE(UVERBS_OBJECT_CQ, &irdma_cq_attrs),
> + {}
> +};
>
> /**
> * irdma_query_device - get device attributes @@ -5602,6 +5618,8 @@
> static void irdma_init_rdma_device(struct irdma_device *iwdev)
> iwdev->ibdev.phys_port_cnt = 1;
> iwdev->ibdev.num_comp_vectors = iwdev->rf->ceqs_count;
> iwdev->ibdev.dev.parent = &pcidev->dev;
> + if (IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS))
> + iwdev->ibdev.driver_def = irdma_uapi_defs;
> ib_set_device_ops(&iwdev->ibdev, &irdma_dev_ops);
> if (iwdev->rf->rdma_ver == IRDMA_GEN_1)
> ib_set_device_ops(&iwdev->ibdev, &irdma_gen1_dev_ops);
> diff --git a/include/uapi/rdma/irdma-abi.h b/include/uapi/rdma/irdma-
> abi.h index 38155affc8b4..a1a26529aa85 100644
> --- a/include/uapi/rdma/irdma-abi.h
> +++ b/include/uapi/rdma/irdma-abi.h
> @@ -10,6 +10,7 @@
> #define IRDMA_ABI_H
>
> #include <linux/types.h>
> +#include <rdma/ib_user_ioctl_cmds.h>
>
> /* irdma must support legacy GEN_1 i40iw kernel
> * and user-space whose last ABI ver is 5 @@ -23,6 +24,10 @@ enum
> irdma_memreg_type {
> IRDMA_MEMREG_TYPE_SRQ = 3,
> };
>
> +enum irdma_ib_create_cq_attrs {
> + IRDMA_IB_ATTR_CREATE_CQ_SHADOW_BUF_UMEM =
> +UVERBS_ID_DRIVER_NS_WITH_UHW, };
> +
> enum {
> IRDMA_ALLOC_UCTX_USE_RAW_ATTR = 1 << 0,
> IRDMA_ALLOC_UCTX_MIN_HW_WQ_SIZE = 1 << 1,
> --
> 2.56.0.317.g454f8302e1-goog
Reviewed-by: Aleksandr Loktionov <[email protected]>
