/* * IBM eServer eHCA Infiniband device driver for Linux on POWER * * SQP functions * * Authors: Khadija Souissi <souissi@de.ibm.com> * Heiko J Schick <schickhj@de.ibm.com> * * Copyright (c) 2005 IBM Corporation * * All rights reserved. * * This source code is distributed under a dual license of GPL v2.0 and OpenIB * BSD. * * OpenIB BSD License * * 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. * * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE * POSSIBILITY OF SUCH DAMAGE. */ #include <linux/module.h> #include <linux/err.h> #include "ehca_classes.h" #include "ehca_tools.h" #include "ehca_qes.h" #include "ehca_iverbs.h" #include "hcp_if.h" /** * ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue * pair is created successfully, the corresponding port gets active. * * Define Special Queue pair 0 (SMI QP) is still not supported. * * @qp_init_attr: Queue pair init attributes with port and queue pair type */ u64 ehca_define_sqp(struct ehca_shca *shca, struct ehca_qp *ehca_qp, struct ib_qp_init_attr *qp_init_attr) { u32 pma_qp_nr, bma_qp_nr; u64 ret; u8 port = qp_init_attr->port_num; int counter; shca->sport[port - 1].port_state = IB_PORT_DOWN; switch (qp_init_attr->qp_type) { case IB_QPT_SMI: /* function not supported yet */ break; case IB_QPT_GSI: ret = hipz_h_define_aqp1(shca->ipz_hca_handle, ehca_qp->ipz_qp_handle, ehca_qp->galpas.kernel, (u32) qp_init_attr->port_num, &pma_qp_nr, &bma_qp_nr); if (ret != H_SUCCESS) { ehca_err(&shca->ib_device, "Can't define AQP1 for port %x. rc=%lx", port, ret); return ret; } break; default: ehca_err(&shca->ib_device, "invalid qp_type=%x", qp_init_attr->qp_type); return H_PARAMETER; } for (counter = 0; shca->sport[port - 1].port_state != IB_PORT_ACTIVE && counter < ehca_port_act_time; counter++) { ehca_dbg(&shca->ib_device, "... wait until port %x is active", port); msleep_interruptible(1000); } if (counter == ehca_port_act_time) { ehca_err(&shca->ib_device, "Port %x is not active.", port); return H_HARDWARE; } return H_SUCCESS; }