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RDMA/nldev: Connect QP number to .doit callback

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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: Leon Romanovsky <leonro@mellanox.com>
Signed-off-by: Jason Gunthorpe <jgg@mellanox.com>
This commit is contained in:
Leon Romanovsky 2019-02-18 22:25:51 +02:00 committed by Jason Gunthorpe
parent c3d02788b4
commit 1b8b778864
2 changed files with 11 additions and 1 deletions
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1
drivers/infiniband/core/nldev.c
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@ -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_cmd = RDMA_NLDEV_CMD_RES_QP_GET,
.nldev_attr = RDMA_NLDEV_ATTR_RES_QP, .nldev_attr = RDMA_NLDEV_ATTR_RES_QP,
.entry = RDMA_NLDEV_ATTR_RES_QP_ENTRY, .entry = RDMA_NLDEV_ATTR_RES_QP_ENTRY,
.id = RDMA_NLDEV_ATTR_RES_LQPN,
}, },
[RDMA_RESTRACK_CM_ID] = { [RDMA_RESTRACK_CM_ID] = {
.fill_res_func = fill_res_cm_id_entry, .fill_res_func = fill_res_cm_id_entry,

11
drivers/infiniband/core/restrack.c
View file

@ -225,7 +225,16 @@ static void rdma_restrack_add(struct rdma_restrack_entry *res)
kref_init(&res->kref); kref_init(&res->kref);
init_completion(&res->comp); init_completion(&res->comp);
ret = rt_xa_alloc_cyclic(&rt->xa, &res->id, res, &rt->next_id); 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) if (!ret)
res->valid = true; res->valid = true;
} }