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IB/mlx5: Introduce driver create and destroy flow methods

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Introduce driver create and destroy flow methods on the uverbs flow
object.

This allows the driver to get its specific device attributes to match the
underlay specification while still using the generic ib_flow object for
cleanup and code sharing.

The IB object's attributes are set via the ib_set_flow() helper function.

The specific implementation for the given specification is added in
downstream patches.

Signed-off-by: Yishai Hadas <yishaih@mellanox.com>
Signed-off-by: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Yishai Hadas
2018-07-23 15:25:09 +03:00
committed by Jason Gunthorpe
parent 6cd080a674
commit 3226944124
7 changed files with 206 additions and 14 deletions
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14
include/rdma/ib_verbs.h
View File

@@ -4134,6 +4134,20 @@ ib_get_vector_affinity(struct ib_device *device, int comp_vector)
}
static inline void ib_set_flow(struct ib_uobject *uobj, struct ib_flow *ibflow,
struct ib_qp *qp, struct ib_device *device)
{
uobj->object = ibflow;
ibflow->uobject = uobj;
if (qp) {
atomic_inc(&qp->usecnt);
ibflow->qp = qp;
}
ibflow->device = device;
}
/**
* rdma_roce_rescan_device - Rescan all of the network devices in the system
* and add their gids, as needed, to the relevant RoCE devices.

33
include/rdma/uverbs_named_ioctl.h
View File

@@ -97,6 +97,24 @@
.methods = &UVERBS_OBJECT_METHODS(_object_id) \
}
/* Used by drivers to declare a complete parsing tree for new methods
*/
#define ADD_UVERBS_METHODS(_name, _object_id, ...) \
static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
_object_id)[] = { __VA_ARGS__ }; \
static const struct uverbs_object_def _name##_struct = { \
.id = _object_id, \
.num_methods = ARRAY_SIZE(UVERBS_OBJECT_METHODS(_object_id)), \
.methods = &UVERBS_OBJECT_METHODS(_object_id) \
}; \
static const struct uverbs_object_def *const _name##_ptrs[] = { \
&_name##_struct, \
}; \
static const struct uverbs_object_tree_def _name = { \
.num_objects = 1, \
.objects = &_name##_ptrs, \
}
/* Used by drivers to declare a complete parsing tree for a single method that
* differs only in having additional driver specific attributes.
*/
@@ -108,19 +126,6 @@
.num_attrs = ARRAY_SIZE(UVERBS_METHOD_ATTRS(_method_id)), \
.attrs = &UVERBS_METHOD_ATTRS(_method_id), \
}; \
static const struct uverbs_method_def *const UVERBS_OBJECT_METHODS( \
_object_id)[] = { &UVERBS_METHOD(_method_id) }; \
static const struct uverbs_object_def _name##_struct = { \
.id = _object_id, \
.num_methods = 1, \
.methods = &UVERBS_OBJECT_METHODS(_object_id) \
}; \
static const struct uverbs_object_def *const _name##_ptrs[] = { \
&_name##_struct, \
}; \
static const struct uverbs_object_tree_def _name = { \
.num_objects = 1, \
.objects = &_name##_ptrs, \
}
ADD_UVERBS_METHODS(_name, _object_id, &UVERBS_METHOD(_method_id))
#endif