[PATCH rdma-next 13/29] IB/rxe: Address vector manipulation functions

Moni Shoua
2016-06-02T16:57:21Z

Functions to manipulate Address Vector.

Signed-off-by: Kamal Heib <kamalh-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Amir Vadai <amirv-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Signed-off-by: Moni Shoua <monis-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
Reviewed-by: Haggai Eran <haggaie-VPRAkNaXOzVWk0Htik3J/w@public.gmane.org>
---
drivers/infiniband/hw/rxe/rxe_av.c | 98 ++++++++++++++++++++++++++++++++++++++
1 file changed, 98 insertions(+)
create mode 100644 drivers/infiniband/hw/rxe/rxe_av.c

diff --git a/drivers/infiniband/hw/rxe/rxe_av.c b/drivers/infiniband/hw/rxe/rxe_av.c
new file mode 100644
index 0000000..61e9cb9
--- /dev/null
+++ b/drivers/infiniband/hw/rxe/rxe_av.c
@@ -0,0 +1,98 @@
+/*
+ * Copyright (c) 2016 Mellanox Technologies Ltd. All rights reserved.
+ * Copyright (c) 2015 System Fabric Works, Inc. All rights reserved.
+ *
+ * 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 "rxe.h"
+#include "rxe_loc.h"
+
+int rxe_av_chk_attr(struct rxe_dev *rxe, struct ib_ah_attr *attr)
+{
+ struct rxe_port *port;
+
+ if (attr->port_num < 1 || attr->port_num > rxe->num_ports) {
+ pr_info("rxe: invalid port_num = %d\n", attr->port_num);
+ return -EINVAL;
+ }
+
+ port = &rxe->port[attr->port_num - 1];
+
+ if (attr->ah_flags & IB_AH_GRH) {
+ if (attr->grh.sgid_index > port->attr.gid_tbl_len) {
+ pr_info("rxe: invalid sgid index = %d\n",
+ attr->grh.sgid_index);
+ return -EINVAL;
+ }
+ }
+
+ return 0;
+}
+
+int rxe_av_from_attr(struct rxe_dev *rxe, u8 port_num,
+ struct rxe_av *av, struct ib_ah_attr *attr)
+{
+ memset(av, 0, sizeof(*av));
+ memcpy(&av->grh, &attr->grh, sizeof(attr->grh));
+ av->port_num = port_num;
+ return 0;
+}
+
+int rxe_av_to_attr(struct rxe_dev *rxe, struct rxe_av *av,
+ struct ib_ah_attr *attr)
+{
+ memcpy(&attr->grh, &av->grh, sizeof(av->grh));
+ attr->port_num = av->port_num;
+ return 0;
+}
+
+int rxe_av_fill_ip_info(struct rxe_dev *rxe,
+ struct rxe_av *av,
+ struct ib_ah_attr *attr,
+ struct ib_gid_attr *sgid_attr,
+ union ib_gid *sgid)
+{
+ rdma_gid2ip(&av->sgid_addr._sockaddr, sgid);
+ rdma_gid2ip(&av->dgid_addr._sockaddr, &attr->grh.dgid);
+ av->network_type = ib_gid_to_network_type(sgid_attr->gid_type, sgid);
+
+ return 0;
+}
+
+struct rxe_av *rxe_get_av(struct rxe_pkt_info *pkt)
+{
+ if (!pkt || !pkt->qp)
+ return NULL;
+
+ if (qp_type(pkt->qp) == IB_QPT_RC || qp_type(pkt->qp) == IB_QPT_UC)
+ return &pkt->qp->pri_av;
+
+ return (pkt->wqe) ? &pkt->wqe->av : NULL;
+}
--
1.8.3.1