diff options
| -rw-r--r-- | drivers/infiniband/core/device.c | 1 | ||||
| -rw-r--r-- | drivers/infiniband/core/uverbs_std_types_device.c | 41 | ||||
| -rw-r--r-- | include/rdma/ib_verbs.h | 4 | ||||
| -rw-r--r-- | include/uapi/rdma/ib_user_ioctl_cmds.h | 6 |
4 files changed, 51 insertions, 1 deletions
diff --git a/drivers/infiniband/core/device.c b/drivers/infiniband/core/device.c index 40cf07129f66..1900c0df3c8a 100644 --- a/drivers/infiniband/core/device.c +++ b/drivers/infiniband/core/device.c @@ -2674,6 +2674,7 @@ void ib_set_device_ops(struct ib_device *dev, const struct ib_device_ops *ops) SET_DEVICE_OP(dev_ops, query_port); SET_DEVICE_OP(dev_ops, query_qp); SET_DEVICE_OP(dev_ops, query_srq); + SET_DEVICE_OP(dev_ops, query_ucontext); SET_DEVICE_OP(dev_ops, rdma_netdev_get_params); SET_DEVICE_OP(dev_ops, read_counters); SET_DEVICE_OP(dev_ops, reg_dm_mr); diff --git a/drivers/infiniband/core/uverbs_std_types_device.c b/drivers/infiniband/core/uverbs_std_types_device.c index ae4a59d6f9b1..8e58605a17be 100644 --- a/drivers/infiniband/core/uverbs_std_types_device.c +++ b/drivers/infiniband/core/uverbs_std_types_device.c @@ -229,6 +229,37 @@ static int UVERBS_HANDLER(UVERBS_METHOD_GET_CONTEXT)( return 0; } +static int UVERBS_HANDLER(UVERBS_METHOD_QUERY_CONTEXT)( + struct uverbs_attr_bundle *attrs) +{ + u64 core_support = IB_UVERBS_CORE_SUPPORT_OPTIONAL_MR_ACCESS; + struct ib_ucontext *ucontext; + struct ib_device *ib_dev; + u32 num_comp; + int ret; + + ucontext = ib_uverbs_get_ucontext(attrs); + if (IS_ERR(ucontext)) + return PTR_ERR(ucontext); + ib_dev = ucontext->device; + + if (!ib_dev->ops.query_ucontext) + return -EOPNOTSUPP; + + num_comp = attrs->ufile->device->num_comp_vectors; + ret = uverbs_copy_to(attrs, UVERBS_ATTR_QUERY_CONTEXT_NUM_COMP_VECTORS, + &num_comp, sizeof(num_comp)); + if (IS_UVERBS_COPY_ERR(ret)) + return ret; + + ret = uverbs_copy_to(attrs, UVERBS_ATTR_QUERY_CONTEXT_CORE_SUPPORT, + &core_support, sizeof(core_support)); + if (IS_UVERBS_COPY_ERR(ret)) + return ret; + + return ucontext->device->ops.query_ucontext(ucontext, attrs); +} + DECLARE_UVERBS_NAMED_METHOD( UVERBS_METHOD_GET_CONTEXT, UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_GET_CONTEXT_NUM_COMP_VECTORS, @@ -238,6 +269,13 @@ DECLARE_UVERBS_NAMED_METHOD( UVERBS_ATTR_UHW()); DECLARE_UVERBS_NAMED_METHOD( + UVERBS_METHOD_QUERY_CONTEXT, + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_QUERY_CONTEXT_NUM_COMP_VECTORS, + UVERBS_ATTR_TYPE(u32), UA_OPTIONAL), + UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_QUERY_CONTEXT_CORE_SUPPORT, + UVERBS_ATTR_TYPE(u64), UA_OPTIONAL)); + +DECLARE_UVERBS_NAMED_METHOD( UVERBS_METHOD_INFO_HANDLES, /* Also includes any device specific object ids */ UVERBS_ATTR_CONST_IN(UVERBS_ATTR_INFO_OBJECT_ID, @@ -260,7 +298,8 @@ DECLARE_UVERBS_GLOBAL_METHODS(UVERBS_OBJECT_DEVICE, &UVERBS_METHOD(UVERBS_METHOD_GET_CONTEXT), &UVERBS_METHOD(UVERBS_METHOD_INVOKE_WRITE), &UVERBS_METHOD(UVERBS_METHOD_INFO_HANDLES), - &UVERBS_METHOD(UVERBS_METHOD_QUERY_PORT)); + &UVERBS_METHOD(UVERBS_METHOD_QUERY_PORT), + &UVERBS_METHOD(UVERBS_METHOD_QUERY_CONTEXT)); const struct uapi_definition uverbs_def_obj_device[] = { UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_DEVICE), diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h index 20c801730fed..6c72bb194148 100644 --- a/include/rdma/ib_verbs.h +++ b/include/rdma/ib_verbs.h @@ -2645,6 +2645,10 @@ struct ib_device_ops { */ int (*fill_stat_mr_entry)(struct sk_buff *msg, struct ib_mr *ibmr); + /* query driver for its ucontext properties */ + int (*query_ucontext)(struct ib_ucontext *context, + struct uverbs_attr_bundle *attrs); + DECLARE_RDMA_OBJ_SIZE(ib_ah); DECLARE_RDMA_OBJ_SIZE(ib_cq); DECLARE_RDMA_OBJ_SIZE(ib_pd); diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h index 4961d5e858eb..83b6e71ea216 100644 --- a/include/uapi/rdma/ib_user_ioctl_cmds.h +++ b/include/uapi/rdma/ib_user_ioctl_cmds.h @@ -69,6 +69,7 @@ enum uverbs_methods_device { UVERBS_METHOD_INFO_HANDLES, UVERBS_METHOD_QUERY_PORT, UVERBS_METHOD_GET_CONTEXT, + UVERBS_METHOD_QUERY_CONTEXT, }; enum uverbs_attrs_invoke_write_cmd_attr_ids { @@ -87,6 +88,11 @@ enum uverbs_attrs_get_context_attr_ids { UVERBS_ATTR_GET_CONTEXT_CORE_SUPPORT, }; +enum uverbs_attrs_query_context_attr_ids { + UVERBS_ATTR_QUERY_CONTEXT_NUM_COMP_VECTORS, + UVERBS_ATTR_QUERY_CONTEXT_CORE_SUPPORT, +}; + enum uverbs_attrs_create_cq_cmd_attr_ids { UVERBS_ATTR_CREATE_CQ_HANDLE, UVERBS_ATTR_CREATE_CQ_CQE, |