Functions to manipulate Address Vector. Signed-off-by: Kamal Heib <kam...@mellanox.com> Signed-off-by: Amir Vadai <am...@mellanox.com> Reviewed-by: Haggai Eran <hagg...@mellanox.com> --- drivers/staging/rxe/rxe_av.c | 87 ++++++++++++++++++++++++++++++++++++++++++++ 1 file changed, 87 insertions(+) create mode 100644 drivers/staging/rxe/rxe_av.c
diff --git a/drivers/staging/rxe/rxe_av.c b/drivers/staging/rxe/rxe_av.c new file mode 100644 index 0000000..cc4b179 --- /dev/null +++ b/drivers/staging/rxe/rxe_av.c @@ -0,0 +1,87 @@ +/* + * Copyright (c) 2015 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; +} -- 1.8.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-rdma" in the body of a message to majord...@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html