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-rw-r--r--drivers/infiniband/core/Makefile3
-rw-r--r--drivers/infiniband/core/uverbs_std_types.c10
-rw-r--r--drivers/infiniband/core/uverbs_std_types_mr.c147
-rw-r--r--drivers/infiniband/core/verbs.c6
-rw-r--r--include/rdma/ib_verbs.h11
-rw-r--r--include/rdma/uverbs_ioctl.h12
-rw-r--r--include/uapi/rdma/ib_user_ioctl_cmds.h16
7 files changed, 193 insertions, 12 deletions
diff --git a/drivers/infiniband/core/Makefile b/drivers/infiniband/core/Makefile
index 636da34f8308..dda9e856e3fa 100644
--- a/drivers/infiniband/core/Makefile
+++ b/drivers/infiniband/core/Makefile
@@ -35,4 +35,5 @@ ib_ucm-y := ucm.o
ib_uverbs-y := uverbs_main.o uverbs_cmd.o uverbs_marshall.o \
rdma_core.o uverbs_std_types.o uverbs_ioctl.o \
uverbs_ioctl_merge.o uverbs_std_types_cq.o \
- uverbs_std_types_flow_action.o uverbs_std_types_dm.o
+ uverbs_std_types_flow_action.o uverbs_std_types_dm.o \
+ uverbs_std_types_mr.o
diff --git a/drivers/infiniband/core/uverbs_std_types.c b/drivers/infiniband/core/uverbs_std_types.c
index 4fedf59ec396..569f48bd821e 100644
--- a/drivers/infiniband/core/uverbs_std_types.c
+++ b/drivers/infiniband/core/uverbs_std_types.c
@@ -144,12 +144,6 @@ static int uverbs_free_srq(struct ib_uobject *uobject,
return ret;
}
-static int uverbs_free_mr(struct ib_uobject *uobject,
- enum rdma_remove_reason why)
-{
- return ib_dereg_mr((struct ib_mr *)uobject->object);
-}
-
static int uverbs_free_xrcd(struct ib_uobject *uobject,
enum rdma_remove_reason why)
{
@@ -265,10 +259,6 @@ DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_QP,
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MW,
&UVERBS_TYPE_ALLOC_IDR(0, uverbs_free_mw));
-DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MR,
- /* 1 is used in order to free the MR after all the MWs */
- &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr));
-
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_SRQ,
&UVERBS_TYPE_ALLOC_IDR_SZ(sizeof(struct ib_usrq_object), 0,
uverbs_free_srq));
diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c
new file mode 100644
index 000000000000..68f7cadf088f
--- /dev/null
+++ b/drivers/infiniband/core/uverbs_std_types_mr.c
@@ -0,0 +1,147 @@
+/*
+ * Copyright (c) 2018, Mellanox Technologies inc. All rights reserved.
+ *
+ * This software is available to you under a choice of one of two
+ * licenses. You may choose to be licensed under the terms of the GNU
+ * General Public License (GPL) Version 2, available from the file
+ * COPYING in the main directory of this source tree, or the
+ * OpenIB.org BSD license below:
+ *
+ * Redistribution and use in source and binary forms, with or
+ * without modification, are permitted provided that the following
+ * conditions are met:
+ *
+ * - Redistributions of source code must retain the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer.
+ *
+ * - Redistributions in binary form must reproduce the above
+ * copyright notice, this list of conditions and the following
+ * disclaimer in the documentation and/or other materials
+ * provided with the distribution.
+ *
+ * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
+ * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
+ * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
+ * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
+ * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
+ * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
+ * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
+ * SOFTWARE.
+ */
+
+#include "uverbs.h"
+#include <rdma/uverbs_std_types.h>
+
+static int uverbs_free_mr(struct ib_uobject *uobject,
+ enum rdma_remove_reason why)
+{
+ return ib_dereg_mr((struct ib_mr *)uobject->object);
+}
+
+static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)(struct ib_device *ib_dev,
+ struct ib_uverbs_file *file,
+ struct uverbs_attr_bundle *attrs)
+{
+ struct ib_dm_mr_attr attr = {};
+ struct ib_uobject *uobj;
+ struct ib_dm *dm;
+ struct ib_pd *pd;
+ struct ib_mr *mr;
+ int ret;
+
+ if (!ib_dev->reg_dm_mr)
+ return -EOPNOTSUPP;
+
+ ret = uverbs_copy_from(&attr.offset, attrs, UVERBS_ATTR_REG_DM_MR_OFFSET);
+ if (ret)
+ return ret;
+
+ ret = uverbs_copy_from(&attr.length, attrs,
+ UVERBS_ATTR_REG_DM_MR_LENGTH);
+ if (ret)
+ return ret;
+
+ ret = uverbs_copy_from(&attr.access_flags, attrs,
+ UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS);
+ if (ret)
+ return ret;
+
+ if (!(attr.access_flags & IB_ZERO_BASED))
+ return -EINVAL;
+
+ ret = ib_check_mr_access(attr.access_flags);
+ if (ret)
+ return ret;
+
+ pd = uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_PD_HANDLE);
+
+ dm = uverbs_attr_get_obj(attrs, UVERBS_ATTR_REG_DM_MR_DM_HANDLE);
+
+ uobj = uverbs_attr_get(attrs, UVERBS_ATTR_REG_DM_MR_HANDLE)->obj_attr.uobject;
+
+ if (attr.offset > dm->length || attr.length > dm->length ||
+ attr.length > dm->length - attr.offset)
+ return -EINVAL;
+
+ mr = pd->device->reg_dm_mr(pd, dm, &attr, attrs);
+ if (IS_ERR(mr))
+ return PTR_ERR(mr);
+
+ mr->device = pd->device;
+ mr->pd = pd;
+ mr->dm = dm;
+ mr->uobject = uobj;
+ atomic_inc(&pd->usecnt);
+ atomic_inc(&dm->usecnt);
+
+ uobj->object = mr;
+
+ ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_LKEY, &mr->lkey,
+ sizeof(mr->lkey));
+ if (ret)
+ goto err_dereg;
+
+ ret = uverbs_copy_to(attrs, UVERBS_ATTR_REG_DM_MR_RESP_RKEY,
+ &mr->rkey, sizeof(mr->rkey));
+ if (ret)
+ goto err_dereg;
+
+ return 0;
+
+err_dereg:
+ ib_dereg_mr(mr);
+
+ return ret;
+}
+
+static DECLARE_UVERBS_NAMED_METHOD(UVERBS_METHOD_DM_MR_REG,
+ &UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_HANDLE, UVERBS_OBJECT_MR,
+ UVERBS_ACCESS_NEW,
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_OFFSET,
+ UVERBS_ATTR_TYPE(u64),
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_LENGTH,
+ UVERBS_ATTR_TYPE(u64),
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_PD_HANDLE, UVERBS_OBJECT_PD,
+ UVERBS_ACCESS_READ,
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
+ UVERBS_ATTR_TYPE(u32),
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_DM_HANDLE, UVERBS_OBJECT_DM,
+ UVERBS_ACCESS_READ,
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_LKEY,
+ UVERBS_ATTR_TYPE(u32),
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)),
+ &UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_REG_DM_MR_RESP_RKEY,
+ UVERBS_ATTR_TYPE(u32),
+ UA_FLAGS(UVERBS_ATTR_SPEC_F_MANDATORY)));
+
+DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_MR,
+ /* 1 is used in order to free the MR after all the MWs */
+ &UVERBS_TYPE_ALLOC_IDR(1, uverbs_free_mr),
+ &UVERBS_METHOD(UVERBS_METHOD_DM_MR_REG));
diff --git a/drivers/infiniband/core/verbs.c b/drivers/infiniband/core/verbs.c
index 95e3b307c93a..7eff3aeffe01 100644
--- a/drivers/infiniband/core/verbs.c
+++ b/drivers/infiniband/core/verbs.c
@@ -1616,12 +1616,16 @@ EXPORT_SYMBOL(ib_resize_cq);
int ib_dereg_mr(struct ib_mr *mr)
{
struct ib_pd *pd = mr->pd;
+ struct ib_dm *dm = mr->dm;
int ret;
rdma_restrack_del(&mr->res);
ret = mr->device->dereg_mr(mr);
- if (!ret)
+ if (!ret) {
atomic_dec(&pd->usecnt);
+ if (dm)
+ atomic_dec(&dm->usecnt);
+ }
return ret;
}
diff --git a/include/rdma/ib_verbs.h b/include/rdma/ib_verbs.h
index 6806c4f5657a..4bd24c48b1ad 100644
--- a/include/rdma/ib_verbs.h
+++ b/include/rdma/ib_verbs.h
@@ -321,6 +321,12 @@ struct ib_cq_caps {
u16 max_cq_moderation_period;
};
+struct ib_dm_mr_attr {
+ u64 length;
+ u64 offset;
+ u32 access_flags;
+};
+
struct ib_dm_alloc_attr {
u64 length;
u32 alignment;
@@ -1797,6 +1803,8 @@ struct ib_mr {
struct list_head qp_entry; /* FR */
};
+ struct ib_dm *dm;
+
/*
* Implementation details of the RDMA core, don't use in drivers:
*/
@@ -2444,6 +2452,9 @@ struct ib_device {
struct ib_dm_alloc_attr *attr,
struct uverbs_attr_bundle *attrs);
int (*dealloc_dm)(struct ib_dm *dm);
+ struct ib_mr * (*reg_dm_mr)(struct ib_pd *pd, struct ib_dm *dm,
+ struct ib_dm_mr_attr *attr,
+ struct uverbs_attr_bundle *attrs);
/**
* rdma netdev operation
*
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index 3d6ac684b8f0..4a4201d997a7 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -408,6 +408,18 @@ static inline int uverbs_attr_get_enum_id(const struct uverbs_attr_bundle *attrs
return attr->ptr_attr.enum_id;
}
+static inline void *uverbs_attr_get_obj(const struct uverbs_attr_bundle *attrs_bundle,
+ u16 idx)
+{
+ struct ib_uobject *uobj =
+ uverbs_attr_get(attrs_bundle, idx)->obj_attr.uobject;
+
+ if (IS_ERR(uobj))
+ return uobj;
+
+ return uobj->object;
+}
+
static inline int uverbs_copy_to(const struct uverbs_attr_bundle *attrs_bundle,
size_t idx, const void *from, size_t size)
{
diff --git a/include/uapi/rdma/ib_user_ioctl_cmds.h b/include/uapi/rdma/ib_user_ioctl_cmds.h
index 6034df2625c6..83e3890eef20 100644
--- a/include/uapi/rdma/ib_user_ioctl_cmds.h
+++ b/include/uapi/rdma/ib_user_ioctl_cmds.h
@@ -115,4 +115,20 @@ enum uverbs_methods_dm {
UVERBS_METHOD_DM_ALLOC,
UVERBS_METHOD_DM_FREE,
};
+
+enum uverbs_attrs_reg_dm_mr_cmd_attr_ids {
+ UVERBS_ATTR_REG_DM_MR_HANDLE,
+ UVERBS_ATTR_REG_DM_MR_OFFSET,
+ UVERBS_ATTR_REG_DM_MR_LENGTH,
+ UVERBS_ATTR_REG_DM_MR_PD_HANDLE,
+ UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
+ UVERBS_ATTR_REG_DM_MR_DM_HANDLE,
+ UVERBS_ATTR_REG_DM_MR_RESP_LKEY,
+ UVERBS_ATTR_REG_DM_MR_RESP_RKEY,
+};
+
+enum uverbs_methods_mr {
+ UVERBS_METHOD_DM_MR_REG,
+};
+
#endif
generated by cgit v1.2.3 (git 2.39.1) at 2024-11-11 14:58:11 +0000