d6b92ffa99
kernel APIs. List of sources used: 1) rdma-core was cloned from "https://github.com/linux-rdma/rdma-core.git" Top commit d65138ef93af30b3ea249f3a84aa6a24ba7f8a75 2) OpenSM was cloned from git://git.openfabrics.org/~halr/opensm.git Top commit 85f841cf209f791c89a075048a907020e924528d 3) libibmad was cloned from "git://git.openfabrics.org/~iraweiny/libibmad.git" Tag 1.3.13 with some additional patches from Mellanox. 4) infiniband-diags was cloned from "git://git.openfabrics.org/~iraweiny/infiniband-diags.git" Tag 1.6.7 with some additional patches from Mellanox. Added the required Makefiles for building and installing. Sponsored by: Mellanox Technologies
108 lines
3.2 KiB
C
108 lines
3.2 KiB
C
/*
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* Copyright (c) 2004-2009 Voltaire Inc. All rights reserved.
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*
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* This software is available to you under a choice of one of two
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* licenses. You may choose to be licensed under the terms of the GNU
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* General Public License (GPL) Version 2, available from the file
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* COPYING in the main directory of this source tree, or the
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* OpenIB.org BSD license below:
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*
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* Redistribution and use in source and binary forms, with or
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* without modification, are permitted provided that the following
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* conditions are met:
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*
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* - Redistributions of source code must retain the above
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* copyright notice, this list of conditions and the following
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* disclaimer.
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*
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* - Redistributions in binary form must reproduce the above
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* copyright notice, this list of conditions and the following
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* disclaimer in the documentation and/or other materials
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* provided with the distribution.
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*
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* THE SOFTWARE IS PROVIDED "AS IS", WITHOUT WARRANTY OF ANY KIND,
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* EXPRESS OR IMPLIED, INCLUDING BUT NOT LIMITED TO THE WARRANTIES OF
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* MERCHANTABILITY, FITNESS FOR A PARTICULAR PURPOSE AND
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* NONINFRINGEMENT. IN NO EVENT SHALL THE AUTHORS OR COPYRIGHT HOLDERS
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* BE LIABLE FOR ANY CLAIM, DAMAGES OR OTHER LIABILITY, WHETHER IN AN
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* ACTION OF CONTRACT, TORT OR OTHERWISE, ARISING FROM, OUT OF OR IN
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* CONNECTION WITH THE SOFTWARE OR THE USE OR OTHER DEALINGS IN THE
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* SOFTWARE.
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*
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*/
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#if HAVE_CONFIG_H
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# include <config.h>
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#endif /* HAVE_CONFIG_H */
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#include <string.h>
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#include <infiniband/mad.h>
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#undef DEBUG
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#define DEBUG if (ibdebug) IBWARN
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static inline int response_expected(int method)
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{
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return method == IB_MAD_METHOD_GET ||
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method == IB_MAD_METHOD_SET || method == IB_MAD_METHOD_TRAP;
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}
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uint8_t *bm_call_via(void *data, ib_portid_t * portid, ib_bm_call_t * call,
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struct ibmad_port * srcport)
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{
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ib_rpc_t rpc = { 0 };
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int resp_expected;
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struct {
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uint64_t bkey;
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uint8_t reserved[32];
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uint8_t data[IB_BM_DATA_SZ];
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} bm_data;
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DEBUG("route %s data %p", portid2str(portid), data);
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if (portid->lid <= 0) {
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IBWARN("only lid routes are supported");
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return NULL;
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}
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resp_expected = response_expected(call->method);
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rpc.mgtclass = IB_BOARD_MGMT_CLASS;
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rpc.method = call->method;
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rpc.attr.id = call->attrid;
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rpc.attr.mod = call->mod;
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rpc.timeout = resp_expected ? call->timeout : 0;
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// send data and bkey
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rpc.datasz = IB_BM_BKEY_AND_DATA_SZ;
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rpc.dataoffs = IB_BM_BKEY_OFFS;
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// copy data to a buffer which also includes the bkey
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bm_data.bkey = htonll(call->bkey);
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memset(bm_data.reserved, 0, sizeof(bm_data.reserved));
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memcpy(bm_data.data, data, IB_BM_DATA_SZ);
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DEBUG
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("method 0x%x attr 0x%x mod 0x%x datasz %d off %d res_ex %d bkey 0x%08x%08x",
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rpc.method, rpc.attr.id, rpc.attr.mod, rpc.datasz, rpc.dataoffs,
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resp_expected, (int)(call->bkey >> 32), (int)call->bkey);
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portid->qp = 1;
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if (!portid->qkey)
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portid->qkey = IB_DEFAULT_QP1_QKEY;
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if (resp_expected) {
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/* FIXME: no RMPP for now */
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if (mad_rpc(srcport, &rpc, portid, &bm_data, &bm_data))
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goto return_ok;
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return NULL;
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}
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if (mad_send_via(&rpc, portid, 0, &bm_data, srcport) < 0)
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return NULL;
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return_ok:
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memcpy(data, bm_data.data, IB_BM_DATA_SZ);
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return data;
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}
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