diff options
author | Kalderon, Michal <Michal.Kalderon@cavium.com> | 2017-07-26 14:41:55 +0300 |
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committer | Doug Ledford <dledford@redhat.com> | 2017-08-18 19:26:38 +0300 |
commit | de0089e692a92ce5180eec6a79f1f79153e3c669 (patch) | |
tree | fecb49ed3138f2ebf5cac74f3626578e07858bd2 /drivers/infiniband/hw/qedr/qedr_iw_cm.c | |
parent | fb1a22be9d32675ba140a4e1438e5e52c6d5694e (diff) | |
download | linux-de0089e692a92ce5180eec6a79f1f79153e3c669.tar.xz |
RDMA/qedr: Add iWARP connection management qp related callbacks
This patch implements the following iWARP callbacks:
qp_add_ref
qp_rem_ref
get_qp
Signed-off-by: Michal Kalderon <Michal.Kalderon@cavium.com>
Signed-off-by: Ram Amrani <Ram.Amrani@cavium.com>
Signed-off-by: Ariel Elior <Ariel.Elior@cavium.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Diffstat (limited to 'drivers/infiniband/hw/qedr/qedr_iw_cm.c')
-rw-r--r-- | drivers/infiniband/hw/qedr/qedr_iw_cm.c | 57 |
1 files changed, 57 insertions, 0 deletions
diff --git a/drivers/infiniband/hw/qedr/qedr_iw_cm.c b/drivers/infiniband/hw/qedr/qedr_iw_cm.c new file mode 100644 index 000000000000..8811dbc036e2 --- /dev/null +++ b/drivers/infiniband/hw/qedr/qedr_iw_cm.c @@ -0,0 +1,57 @@ +/* QLogic qedr NIC Driver + * Copyright (c) 2015-2017 QLogic Corporation + * + * This software is available to you under a choice of one of two + * licenses. You may choose to be licensed under the terms of the GNU + * General Public License (GPL) Version 2, available from the file + * COPYING in the main directory of this source tree, or the + * OpenIB.org BSD license below: + * + * Redistribution and use in source and binary forms, with or + * without modification, are permitted provided that the following + * conditions are met: + * + * - Redistributions of source code must retain the above + * copyright notice, this list of conditions and the following + * disclaimer. + * + * - Redistributions in binary form must reproduce the above + * copyright notice, this list of conditions and the following + * disclaimer in the documentation and /or other materials + * provided with the distribution. + * + * THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND, + * EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF + * MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND + * NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS + * BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN + * ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN + * CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE + * SOFTWARE. + */ +#include "qedr.h" +void qedr_iw_qp_add_ref(struct ib_qp *ibqp) +{ + struct qedr_qp *qp = get_qedr_qp(ibqp); + + atomic_inc(&qp->refcnt); +} + +void qedr_iw_qp_rem_ref(struct ib_qp *ibqp) +{ + struct qedr_qp *qp = get_qedr_qp(ibqp); + + if (atomic_dec_and_test(&qp->refcnt)) { + spin_lock_irq(&qp->dev->idr_lock); + idr_remove(&qp->dev->qpidr, qp->qp_id); + spin_unlock_irq(&qp->dev->idr_lock); + kfree(qp); + } +} + +struct ib_qp *qedr_iw_get_qp(struct ib_device *ibdev, int qpn) +{ + struct qedr_dev *dev = get_qedr_dev(ibdev); + + return idr_find(&dev->qpidr, qpn); +} |