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Commit 1b8b7788 authored by Leon Romanovsky's avatar Leon Romanovsky Committed by Jason Gunthorpe
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RDMA/nldev: Connect QP number to .doit callback 



This patch adds ability to query specific QP based on its LQPN (local
QPN), which is assigned by HW and needs special treatment while inserting
into restrack DB.

Signed-off-by: default avatarLeon Romanovsky <leonro@mellanox.com>
Signed-off-by: default avatarJason Gunthorpe <jgg@mellanox.com>
parent c3d02788

drivers/infiniband/core/nldev.c

+1 −0
Original line number Diff line number Diff line
@@ -921,6 +921,7 @@ static const struct nldev_fill_res_entry fill_entries[RDMA_RESTRACK_MAX] = { 
		.nldev_cmd = RDMA_NLDEV_CMD_RES_QP_GET,

		.nldev_attr = RDMA_NLDEV_ATTR_RES_QP,

		.entry = RDMA_NLDEV_ATTR_RES_QP_ENTRY,

		.id = RDMA_NLDEV_ATTR_RES_LQPN,

	},

	[RDMA_RESTRACK_CM_ID] = {

		.fill_res_func = fill_res_cm_id_entry,

drivers/infiniband/core/restrack.c

+10 −1
Original line number Diff line number Diff line
@@ -225,7 +225,16 @@ static void rdma_restrack_add(struct rdma_restrack_entry *res) 


	kref_init(&res->kref);

	init_completion(&res->comp);

	if (res->type != RDMA_RESTRACK_QP)

		ret = rt_xa_alloc_cyclic(&rt->xa, &res->id, res, &rt->next_id);

	else {

		/* Special case to ensure that LQPN points to right QP */

		struct ib_qp *qp = container_of(res, struct ib_qp, res);



		ret = xa_insert(&rt->xa, qp->qp_num, res, GFP_KERNEL);

		res->id = ret ? 0 : qp->qp_num;

	}



	if (!ret)

		res->valid = true;

}