return ret;
}
-static int uverbs_free_srq(struct ib_uobject *uobject,
- enum rdma_remove_reason why,
- struct uverbs_attr_bundle *attrs)
-{
- struct ib_srq *srq = uobject->object;
- struct ib_uevent_object *uevent =
- container_of(uobject, struct ib_uevent_object, uobject);
- enum ib_srq_type srq_type = srq->srq_type;
- int ret;
-
- ret = ib_destroy_srq_user(srq, &attrs->driver_udata);
- if (ib_is_destroy_retryable(ret, why, uobject))
- return ret;
-
- if (srq_type == IB_SRQT_XRC) {
- struct ib_usrq_object *us =
- container_of(uevent, struct ib_usrq_object, uevent);
-
- atomic_dec(&us->uxrcd->refcnt);
- }
-
- ib_uverbs_release_uevent(uevent);
- return ret;
-}
-
static int uverbs_free_xrcd(struct ib_uobject *uobject,
enum rdma_remove_reason why,
struct uverbs_attr_bundle *attrs)
UVERBS_TYPE_ALLOC_IDR(uverbs_free_mw),
&UVERBS_METHOD(UVERBS_METHOD_MW_DESTROY));
-DECLARE_UVERBS_NAMED_OBJECT(
- UVERBS_OBJECT_SRQ,
- UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object),
- uverbs_free_srq));
-
DECLARE_UVERBS_NAMED_METHOD_DESTROY(
UVERBS_METHOD_AH_DESTROY,
UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_AH_HANDLE,
UAPI_DEF_OBJ_NEEDS_FN(destroy_ah)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_MW,
UAPI_DEF_OBJ_NEEDS_FN(dealloc_mw)),
- UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_SRQ,
- UAPI_DEF_OBJ_NEEDS_FN(destroy_srq)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_FLOW,
UAPI_DEF_OBJ_NEEDS_FN(destroy_flow)),
UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_WQ,
--- /dev/null
+// SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB
+/*
+ * Copyright (c) 2020, Mellanox Technologies inc. All rights reserved.
+ */
+
+#include <rdma/uverbs_std_types.h>
+#include "rdma_core.h"
+#include "uverbs.h"
+
+static int uverbs_free_srq(struct ib_uobject *uobject,
+ enum rdma_remove_reason why,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ib_srq *srq = uobject->object;
+ struct ib_uevent_object *uevent =
+ container_of(uobject, struct ib_uevent_object, uobject);
+ enum ib_srq_type srq_type = srq->srq_type;
+ int ret;
+
+ ret = ib_destroy_srq_user(srq, &attrs->driver_udata);
+ if (ib_is_destroy_retryable(ret, why, uobject))
+ return ret;
+
+ if (srq_type == IB_SRQT_XRC) {
+ struct ib_usrq_object *us =
+ container_of(uobject, struct ib_usrq_object,
+ uevent.uobject);
+
+ atomic_dec(&us->uxrcd->refcnt);
+ }
+
+ ib_uverbs_release_uevent(uevent);
+ return ret;
+}
+
+static int UVERBS_HANDLER(UVERBS_METHOD_SRQ_CREATE)(
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ib_usrq_object *obj = container_of(
+ uverbs_attr_get_uobject(attrs, UVERBS_ATTR_CREATE_SRQ_HANDLE),
+ typeof(*obj), uevent.uobject);
+ struct ib_pd *pd =
+ uverbs_attr_get_obj(attrs, UVERBS_ATTR_CREATE_SRQ_PD_HANDLE);
+ struct ib_srq_init_attr attr = {};
+ struct ib_uobject *xrcd_uobj;
+ struct ib_srq *srq;
+ u64 user_handle;
+ int ret;
+
+ ret = uverbs_copy_from(&attr.attr.max_sge, attrs,
+ UVERBS_ATTR_CREATE_SRQ_MAX_SGE);
+ if (!ret)
+ ret = uverbs_copy_from(&attr.attr.max_wr, attrs,
+ UVERBS_ATTR_CREATE_SRQ_MAX_WR);
+ if (!ret)
+ ret = uverbs_copy_from(&attr.attr.srq_limit, attrs,
+ UVERBS_ATTR_CREATE_SRQ_LIMIT);
+ if (!ret)
+ ret = uverbs_copy_from(&user_handle, attrs,
+ UVERBS_ATTR_CREATE_SRQ_USER_HANDLE);
+ if (!ret)
+ ret = uverbs_get_const(&attr.srq_type, attrs,
+ UVERBS_ATTR_CREATE_SRQ_TYPE);
+ if (ret)
+ return ret;
+
+ if (ib_srq_has_cq(attr.srq_type)) {
+ attr.ext.cq = uverbs_attr_get_obj(attrs,
+ UVERBS_ATTR_CREATE_SRQ_CQ_HANDLE);
+ if (IS_ERR(attr.ext.cq))
+ return PTR_ERR(attr.ext.cq);
+ }
+
+ switch (attr.srq_type) {
+ case IB_UVERBS_SRQT_XRC:
+ xrcd_uobj = uverbs_attr_get_uobject(attrs,
+ UVERBS_ATTR_CREATE_SRQ_XRCD_HANDLE);
+ if (IS_ERR(xrcd_uobj))
+ return PTR_ERR(xrcd_uobj);
+
+ attr.ext.xrc.xrcd = (struct ib_xrcd *)xrcd_uobj->object;
+ if (!attr.ext.xrc.xrcd)
+ return -EINVAL;
+ obj->uxrcd = container_of(xrcd_uobj, struct ib_uxrcd_object,
+ uobject);
+ atomic_inc(&obj->uxrcd->refcnt);
+ break;
+ case IB_UVERBS_SRQT_TM:
+ ret = uverbs_copy_from(&attr.ext.tag_matching.max_num_tags,
+ attrs,
+ UVERBS_ATTR_CREATE_SRQ_MAX_NUM_TAGS);
+ if (ret)
+ return ret;
+ break;
+ case IB_UVERBS_SRQT_BASIC:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ obj->uevent.event_file = ib_uverbs_get_async_event(attrs,
+ UVERBS_ATTR_CREATE_SRQ_EVENT_FD);
+ INIT_LIST_HEAD(&obj->uevent.event_list);
+ attr.event_handler = ib_uverbs_srq_event_handler;
+ obj->uevent.uobject.user_handle = user_handle;
+
+ srq = ib_create_srq_user(pd, &attr, obj, &attrs->driver_udata);
+ if (IS_ERR(srq)) {
+ ret = PTR_ERR(srq);
+ goto err;
+ }
+
+ obj->uevent.uobject.object = srq;
+ uverbs_finalize_uobj_create(attrs, UVERBS_ATTR_CREATE_SRQ_HANDLE);
+
+ ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_SRQ_RESP_MAX_WR,
+ &attr.attr.max_wr,
+ sizeof(attr.attr.max_wr));
+ if (ret)
+ return ret;
+
+ ret = uverbs_copy_to(attrs, UVERBS_ATTR_CREATE_SRQ_RESP_MAX_SGE,
+ &attr.attr.max_sge,
+ sizeof(attr.attr.max_sge));
+ if (ret)
+ return ret;
+
+ if (attr.srq_type == IB_SRQT_XRC) {
+ ret = uverbs_copy_to(attrs,
+ UVERBS_ATTR_CREATE_SRQ_RESP_SRQ_NUM,
+ &srq->ext.xrc.srq_num,
+ sizeof(srq->ext.xrc.srq_num));
+ if (ret)
+ return ret;
+ }
+
+ return 0;
+err:
+ if (obj->uevent.event_file)
+ uverbs_uobject_put(&obj->uevent.event_file->uobj);
+ if (attr.srq_type == IB_SRQT_XRC)
+ atomic_dec(&obj->uxrcd->refcnt);
+ return ret;
+};
+
+DECLARE_UVERBS_NAMED_METHOD(
+ UVERBS_METHOD_SRQ_CREATE,
+ UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_SRQ_HANDLE,
+ UVERBS_OBJECT_SRQ,
+ UVERBS_ACCESS_NEW,
+ UA_MANDATORY),
+ UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_SRQ_PD_HANDLE,
+ UVERBS_OBJECT_PD,
+ UVERBS_ACCESS_READ,
+ UA_MANDATORY),
+ UVERBS_ATTR_CONST_IN(UVERBS_ATTR_CREATE_SRQ_TYPE,
+ enum ib_uverbs_srq_type,
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_SRQ_USER_HANDLE,
+ UVERBS_ATTR_TYPE(u64),
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_SRQ_MAX_WR,
+ UVERBS_ATTR_TYPE(u32),
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_SRQ_MAX_SGE,
+ UVERBS_ATTR_TYPE(u32),
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_SRQ_LIMIT,
+ UVERBS_ATTR_TYPE(u32),
+ UA_MANDATORY),
+ UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_SRQ_XRCD_HANDLE,
+ UVERBS_OBJECT_XRCD,
+ UVERBS_ACCESS_READ,
+ UA_OPTIONAL),
+ UVERBS_ATTR_IDR(UVERBS_ATTR_CREATE_SRQ_CQ_HANDLE,
+ UVERBS_OBJECT_CQ,
+ UVERBS_ACCESS_READ,
+ UA_OPTIONAL),
+ UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_SRQ_MAX_NUM_TAGS,
+ UVERBS_ATTR_TYPE(u32),
+ UA_OPTIONAL),
+ UVERBS_ATTR_FD(UVERBS_ATTR_CREATE_SRQ_EVENT_FD,
+ UVERBS_OBJECT_ASYNC_EVENT,
+ UVERBS_ACCESS_READ,
+ UA_OPTIONAL),
+ UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_SRQ_RESP_MAX_WR,
+ UVERBS_ATTR_TYPE(u32),
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_SRQ_RESP_MAX_SGE,
+ UVERBS_ATTR_TYPE(u32),
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_SRQ_RESP_SRQ_NUM,
+ UVERBS_ATTR_TYPE(u32),
+ UA_OPTIONAL),
+ UVERBS_ATTR_UHW());
+
+static int UVERBS_HANDLER(UVERBS_METHOD_SRQ_DESTROY)(
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ib_uobject *uobj =
+ uverbs_attr_get_uobject(attrs, UVERBS_ATTR_DESTROY_SRQ_HANDLE);
+ struct ib_usrq_object *obj =
+ container_of(uobj, struct ib_usrq_object, uevent.uobject);
+ struct ib_uverbs_destroy_srq_resp resp = {
+ .events_reported = obj->uevent.events_reported
+ };
+
+ return uverbs_copy_to(attrs, UVERBS_ATTR_DESTROY_SRQ_RESP, &resp,
+ sizeof(resp));
+}
+
+DECLARE_UVERBS_NAMED_METHOD(
+ UVERBS_METHOD_SRQ_DESTROY,
+ UVERBS_ATTR_IDR(UVERBS_ATTR_DESTROY_SRQ_HANDLE,
+ UVERBS_OBJECT_SRQ,
+ UVERBS_ACCESS_DESTROY,
+ UA_MANDATORY),
+ UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_DESTROY_SRQ_RESP,
+ UVERBS_ATTR_TYPE(struct ib_uverbs_destroy_srq_resp),
+ UA_MANDATORY));
+
+DECLARE_UVERBS_NAMED_OBJECT(
+ UVERBS_OBJECT_SRQ,
+ UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object),
+ uverbs_free_srq),
+ &UVERBS_METHOD(UVERBS_METHOD_SRQ_CREATE),
+ &UVERBS_METHOD(UVERBS_METHOD_SRQ_DESTROY)
+);
+
+const struct uapi_definition uverbs_def_obj_srq[] = {
+ UAPI_DEF_CHAIN_OBJ_TREE_NAMED(UVERBS_OBJECT_SRQ,
+ UAPI_DEF_OBJ_NEEDS_FN(destroy_srq)),
+ {}
+};
UVERBS_ATTR_DESTROY_FLOW_ACTION_HANDLE,
};
+enum uverbs_attrs_create_srq_cmd_attr_ids {
+ UVERBS_ATTR_CREATE_SRQ_HANDLE,
+ UVERBS_ATTR_CREATE_SRQ_PD_HANDLE,
+ UVERBS_ATTR_CREATE_SRQ_XRCD_HANDLE,
+ UVERBS_ATTR_CREATE_SRQ_CQ_HANDLE,
+ UVERBS_ATTR_CREATE_SRQ_USER_HANDLE,
+ UVERBS_ATTR_CREATE_SRQ_MAX_WR,
+ UVERBS_ATTR_CREATE_SRQ_MAX_SGE,
+ UVERBS_ATTR_CREATE_SRQ_LIMIT,
+ UVERBS_ATTR_CREATE_SRQ_MAX_NUM_TAGS,
+ UVERBS_ATTR_CREATE_SRQ_TYPE,
+ UVERBS_ATTR_CREATE_SRQ_EVENT_FD,
+ UVERBS_ATTR_CREATE_SRQ_RESP_MAX_WR,
+ UVERBS_ATTR_CREATE_SRQ_RESP_MAX_SGE,
+ UVERBS_ATTR_CREATE_SRQ_RESP_SRQ_NUM,
+};
+
+enum uverbs_attrs_destroy_srq_cmd_attr_ids {
+ UVERBS_ATTR_DESTROY_SRQ_HANDLE,
+ UVERBS_ATTR_DESTROY_SRQ_RESP,
+};
+
+enum uverbs_methods_srq {
+ UVERBS_METHOD_SRQ_CREATE,
+ UVERBS_METHOD_SRQ_DESTROY,
+};
+
enum uverbs_methods_cq {
UVERBS_METHOD_CQ_CREATE,
UVERBS_METHOD_CQ_DESTROY,
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