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-rw-r--r--drivers/infiniband/core/uverbs_ioctl.c51
-rw-r--r--drivers/infiniband/core/uverbs_std_types_counters.c10
-rw-r--r--drivers/infiniband/core/uverbs_std_types_cq.c13
-rw-r--r--drivers/infiniband/core/uverbs_std_types_mr.c10
-rw-r--r--drivers/infiniband/hw/mlx5/devx.c16
-rw-r--r--drivers/infiniband/hw/mlx5/main.c16
-rw-r--r--include/rdma/uverbs_ioctl.h33
7 files changed, 119 insertions, 30 deletions
diff --git a/drivers/infiniband/core/uverbs_ioctl.c b/drivers/infiniband/core/uverbs_ioctl.c
index db7a92ea5dbe..23a1777f26e2 100644
--- a/drivers/infiniband/core/uverbs_ioctl.c
+++ b/drivers/infiniband/core/uverbs_ioctl.c
@@ -486,3 +486,54 @@ out:
return err;
}
+
+int uverbs_get_flags64(u64 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits)
+{
+ const struct uverbs_attr *attr;
+ u64 flags;
+
+ attr = uverbs_attr_get(attrs_bundle, idx);
+ /* Missing attribute means 0 flags */
+ if (IS_ERR(attr)) {
+ *to = 0;
+ return 0;
+ }
+
+ /*
+ * New userspace code should use 8 bytes to pass flags, but we
+ * transparently support old userspaces that were using 4 bytes as
+ * well.
+ */
+ if (attr->ptr_attr.len == 8)
+ flags = attr->ptr_attr.data;
+ else if (attr->ptr_attr.len == 4)
+ memcpy(&flags, &attr->ptr_attr.data, 4);
+ else
+ return -EINVAL;
+
+ if (flags & ~allowed_bits)
+ return -EINVAL;
+
+ *to = flags;
+ return 0;
+}
+EXPORT_SYMBOL(uverbs_get_flags64);
+
+int uverbs_get_flags32(u32 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits)
+{
+ u64 flags;
+ int ret;
+
+ ret = uverbs_get_flags64(&flags, attrs_bundle, idx, allowed_bits);
+ if (ret)
+ return ret;
+
+ if (flags > U32_MAX)
+ return -EINVAL;
+ *to = flags;
+
+ return 0;
+}
+EXPORT_SYMBOL(uverbs_get_flags32);
diff --git a/drivers/infiniband/core/uverbs_std_types_counters.c b/drivers/infiniband/core/uverbs_std_types_counters.c
index dfe59ad721f6..34589799f446 100644
--- a/drivers/infiniband/core/uverbs_std_types_counters.c
+++ b/drivers/infiniband/core/uverbs_std_types_counters.c
@@ -97,8 +97,9 @@ static int UVERBS_HANDLER(UVERBS_METHOD_COUNTERS_READ)(struct ib_device *ib_dev,
if (!atomic_read(&counters->usecnt))
return -EINVAL;
- ret = uverbs_copy_from(&read_attr.flags, attrs,
- UVERBS_ATTR_READ_COUNTERS_FLAGS);
+ ret = uverbs_get_flags32(&read_attr.flags, attrs,
+ UVERBS_ATTR_READ_COUNTERS_FLAGS,
+ IB_UVERBS_READ_COUNTERS_PREFER_CACHED);
if (ret)
return ret;
@@ -147,9 +148,8 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_READ_COUNTERS_BUFF,
UVERBS_ATTR_MIN_SIZE(0),
UA_MANDATORY),
- UVERBS_ATTR_PTR_IN(UVERBS_ATTR_READ_COUNTERS_FLAGS,
- UVERBS_ATTR_TYPE(__u32),
- UA_MANDATORY));
+ UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_READ_COUNTERS_FLAGS,
+ enum ib_uverbs_read_counters_flags));
DECLARE_UVERBS_NAMED_OBJECT(UVERBS_OBJECT_COUNTERS,
UVERBS_TYPE_ALLOC_IDR(uverbs_free_counters),
diff --git a/drivers/infiniband/core/uverbs_std_types_cq.c b/drivers/infiniband/core/uverbs_std_types_cq.c
index c71305fc0433..3179203a2dd7 100644
--- a/drivers/infiniband/core/uverbs_std_types_cq.c
+++ b/drivers/infiniband/core/uverbs_std_types_cq.c
@@ -84,10 +84,12 @@ static int UVERBS_HANDLER(UVERBS_METHOD_CQ_CREATE)(struct ib_device *ib_dev,
if (ret)
return ret;
- /* Optional param, if it doesn't exist, we get -ENOENT and skip it */
- if (IS_UVERBS_COPY_ERR(uverbs_copy_from(&attr.flags, attrs,
- UVERBS_ATTR_CREATE_CQ_FLAGS)))
- return -EFAULT;
+ ret = uverbs_get_flags32(&attr.flags, attrs,
+ UVERBS_ATTR_CREATE_CQ_FLAGS,
+ IB_UVERBS_CQ_FLAGS_TIMESTAMP_COMPLETION |
+ IB_UVERBS_CQ_FLAGS_IGNORE_OVERRUN);
+ if (ret)
+ return ret;
ev_file_uobj = uverbs_attr_get_uobject(attrs, UVERBS_ATTR_CREATE_CQ_COMP_CHANNEL);
if (!IS_ERR(ev_file_uobj)) {
@@ -164,7 +166,8 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_COMP_VECTOR,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
- UVERBS_ATTR_PTR_IN(UVERBS_ATTR_CREATE_CQ_FLAGS, UVERBS_ATTR_TYPE(u32)),
+ UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_CREATE_CQ_FLAGS,
+ enum ib_uverbs_ex_create_cq_flags),
UVERBS_ATTR_PTR_OUT(UVERBS_ATTR_CREATE_CQ_RESP_CQE,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY),
diff --git a/drivers/infiniband/core/uverbs_std_types_mr.c b/drivers/infiniband/core/uverbs_std_types_mr.c
index c1b9124d611e..d63da0c2a8c1 100644
--- a/drivers/infiniband/core/uverbs_std_types_mr.c
+++ b/drivers/infiniband/core/uverbs_std_types_mr.c
@@ -62,8 +62,9 @@ static int UVERBS_HANDLER(UVERBS_METHOD_DM_MR_REG)(struct ib_device *ib_dev,
if (ret)
return ret;
- ret = uverbs_copy_from(&attr.access_flags, attrs,
- UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS);
+ ret = uverbs_get_flags32(&attr.access_flags, attrs,
+ UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
+ IB_ACCESS_SUPPORTED);
if (ret)
return ret;
@@ -131,9 +132,8 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_OBJECT_PD,
UVERBS_ACCESS_READ,
UA_MANDATORY),
- UVERBS_ATTR_PTR_IN(UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
- UVERBS_ATTR_TYPE(u32),
- UA_MANDATORY),
+ UVERBS_ATTR_FLAGS_IN(UVERBS_ATTR_REG_DM_MR_ACCESS_FLAGS,
+ enum ib_access_flags),
UVERBS_ATTR_IDR(UVERBS_ATTR_REG_DM_MR_DM_HANDLE,
UVERBS_OBJECT_DM,
UVERBS_ACCESS_READ,
diff --git a/drivers/infiniband/hw/mlx5/devx.c b/drivers/infiniband/hw/mlx5/devx.c
index fee800f2fdec..c9a7a12a8c13 100644
--- a/drivers/infiniband/hw/mlx5/devx.c
+++ b/drivers/infiniband/hw/mlx5/devx.c
@@ -858,16 +858,21 @@ static int devx_umem_get(struct mlx5_ib_dev *dev, struct ib_ucontext *ucontext,
{
u64 addr;
size_t size;
- int access;
+ u32 access;
int npages;
int err;
u32 page_mask;
if (uverbs_copy_from(&addr, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ADDR) ||
- uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN) ||
- uverbs_copy_from(&access, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS))
+ uverbs_copy_from(&size, attrs, MLX5_IB_ATTR_DEVX_UMEM_REG_LEN))
return -EFAULT;
+ err = uverbs_get_flags32(&access, attrs,
+ MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
+ IB_ACCESS_SUPPORTED);
+ if (err)
+ return err;
+
err = ib_check_mr_access(access);
if (err)
return err;
@@ -1012,9 +1017,8 @@ DECLARE_UVERBS_NAMED_METHOD(
UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_LEN,
UVERBS_ATTR_TYPE(u64),
UA_MANDATORY),
- UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
- UVERBS_ATTR_TYPE(u32),
- UA_MANDATORY),
+ UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_DEVX_UMEM_REG_ACCESS,
+ enum ib_access_flags),
UVERBS_ATTR_PTR_OUT(MLX5_IB_ATTR_DEVX_UMEM_REG_OUT_ID,
UVERBS_ATTR_TYPE(u32),
UA_MANDATORY));
diff --git a/drivers/infiniband/hw/mlx5/main.c b/drivers/infiniband/hw/mlx5/main.c
index 61c78f4e4ebc..06d6309b719a 100644
--- a/drivers/infiniband/hw/mlx5/main.c
+++ b/drivers/infiniband/hw/mlx5/main.c
@@ -3859,12 +3859,11 @@ mlx5_ib_create_flow_action_esp(struct ib_device *device,
u64 flags;
int err = 0;
- if (IS_UVERBS_COPY_ERR(uverbs_copy_from(&action_flags, attrs,
- MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS)))
- return ERR_PTR(-EFAULT);
-
- if (action_flags >= (MLX5_FLOW_ACTION_ESP_CREATE_LAST_SUPPORTED << 1))
- return ERR_PTR(-EOPNOTSUPP);
+ err = uverbs_get_flags64(
+ &action_flags, attrs, MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS,
+ ((MLX5_FLOW_ACTION_ESP_CREATE_LAST_SUPPORTED << 1) - 1));
+ if (err)
+ return ERR_PTR(err);
flags = mlx5_ib_flow_action_flags_to_accel_xfrm_flags(action_flags);
@@ -5531,9 +5530,8 @@ ADD_UVERBS_ATTRIBUTES_SIMPLE(
mlx5_ib_flow_action,
UVERBS_OBJECT_FLOW_ACTION,
UVERBS_METHOD_FLOW_ACTION_ESP_CREATE,
- UVERBS_ATTR_PTR_IN(MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS,
- UVERBS_ATTR_TYPE(u64),
- UA_MANDATORY));
+ UVERBS_ATTR_FLAGS_IN(MLX5_IB_ATTR_CREATE_FLOW_ACTION_FLAGS,
+ enum mlx5_ib_uapi_flow_action_flags));
#define NUM_TREES 5
static int populate_specs_root(struct mlx5_ib_dev *dev)
diff --git a/include/rdma/uverbs_ioctl.h b/include/rdma/uverbs_ioctl.h
index d16d31d4322d..5e6d0569d97c 100644
--- a/include/rdma/uverbs_ioctl.h
+++ b/include/rdma/uverbs_ioctl.h
@@ -269,6 +269,19 @@ struct uverbs_object_tree_def {
})
/*
+ * An input value that is a bitwise combination of values of _enum_type.
+ * This permits the flag value to be passed as either a u32 or u64, it must
+ * be retrieved via uverbs_get_flag().
+ */
+#define UVERBS_ATTR_FLAGS_IN(_attr_id, _enum_type, ...) \
+ UVERBS_ATTR_PTR_IN( \
+ _attr_id, \
+ UVERBS_ATTR_SIZE(sizeof(u32) + BUILD_BUG_ON_ZERO( \
+ !sizeof(_enum_type *)), \
+ sizeof(u64)), \
+ __VA_ARGS__)
+
+/*
* This spec is used in order to pass information to the hardware driver in a
* legacy way. Every verb that could get driver specific data should get this
* spec.
@@ -520,6 +533,26 @@ static inline int _uverbs_copy_from_or_zero(void *to,
#define uverbs_copy_from_or_zero(to, attrs_bundle, idx) \
_uverbs_copy_from_or_zero(to, attrs_bundle, idx, sizeof(*to))
+#if IS_ENABLED(CONFIG_INFINIBAND_USER_ACCESS)
+int uverbs_get_flags64(u64 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits);
+int uverbs_get_flags32(u32 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits);
+#else
+static inline int
+uverbs_get_flags64(u64 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits)
+{
+ return -EINVAL;
+}
+static inline int
+uverbs_get_flags32(u32 *to, const struct uverbs_attr_bundle *attrs_bundle,
+ size_t idx, u64 allowed_bits)
+{
+ return -EINVAL;
+}
+#endif
+
/* =================================================
* Definitions -> Specs infrastructure
* =================================================
Copyright © 1996 – 2023 Jason A. Donenfeld. All Rights Reverse Engineered.