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Commit 6cd080a6 authored by Yishai Hadas's avatar Yishai Hadas Committed by Jason Gunthorpe
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IB: Support ib_flow creation in drivers 



This patch considers the case that ib_flow is created by some device
driver with its specific parameters using the KABI infrastructure.

In that case both QP and ib_uflow_resources might not be applicable.
Downstream patches from this series use the above functionality.

Signed-off-by: default avatarYishai Hadas <yishaih@mellanox.com>
Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent fd44e385

drivers/infiniband/core/uverbs_cmd.c

+4 −0
Original line number Diff line number Diff line
@@ -2771,6 +2771,9 @@ void ib_uverbs_flow_resources_free(struct ib_uflow_resources *uflow_res) 
{

	unsigned int i;



	if (!uflow_res)

		return;



	for (i = 0; i < uflow_res->collection_num; i++)

		atomic_dec(&uflow_res->collection[i]->usecnt);
@@ -3585,6 +3588,7 @@ int ib_uverbs_ex_create_flow(struct ib_uverbs_file *file, 
	}

	atomic_inc(&qp->usecnt);

	flow_id->qp = qp;

	flow_id->device = qp->device;

	flow_id->uobject = uobj;

	uobj->object = flow_id;

	uflow = container_of(uobj, typeof(*uflow), uobject);

drivers/infiniband/core/uverbs_std_types.c

+3 −2
Original line number Diff line number Diff line
@@ -54,8 +54,9 @@ static int uverbs_free_flow(struct ib_uobject *uobject, 
	struct ib_qp *qp = flow->qp;

	int ret;



	ret = qp->device->destroy_flow(flow);

	ret = flow->device->destroy_flow(flow);

	if (!ret) {

		if (qp)

			atomic_dec(&qp->usecnt);

		ib_uverbs_flow_resources_free(uflow->resources);

	}

include/rdma/ib_verbs.h

+1 −0
Original line number Diff line number Diff line
@@ -2081,6 +2081,7 @@ struct ib_flow_attr { 


struct ib_flow {

	struct ib_qp		*qp;

	struct ib_device	*device;

	struct ib_uobject	*uobject;

};