1/* 2 * IBM eServer eHCA Infiniband device driver for Linux on POWER 3 * 4 * SQP functions 5 * 6 * Authors: Khadija Souissi <souissi@de.ibm.com> 7 * Heiko J Schick <schickhj@de.ibm.com> 8 * 9 * Copyright (c) 2005 IBM Corporation 10 * 11 * All rights reserved. 12 * 13 * This source code is distributed under a dual license of GPL v2.0 and OpenIB 14 * BSD. 15 * 16 * OpenIB BSD License 17 * 18 * Redistribution and use in source and binary forms, with or without 19 * modification, are permitted provided that the following conditions are met: 20 * 21 * Redistributions of source code must retain the above copyright notice, this 22 * list of conditions and the following disclaimer. 23 * 24 * Redistributions in binary form must reproduce the above copyright notice, 25 * this list of conditions and the following disclaimer in the documentation 26 * and/or other materials 27 * provided with the distribution. 28 * 29 * THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS" 30 * AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 31 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 32 * ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE 33 * LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR 34 * CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF 35 * SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR 36 * BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER 37 * IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) 38 * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE 39 * POSSIBILITY OF SUCH DAMAGE. 40 */ 41 42 43#include <linux/module.h> 44#include <linux/err.h> 45#include "ehca_classes.h" 46#include "ehca_tools.h" 47#include "ehca_qes.h" 48#include "ehca_iverbs.h" 49#include "hcp_if.h" 50 51 52/** 53 * ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue 54 * pair is created successfully, the corresponding port gets active. 55 * 56 * Define Special Queue pair 0 (SMI QP) is still not supported. 57 * 58 * @qp_init_attr: Queue pair init attributes with port and queue pair type 59 */ 60 61u64 ehca_define_sqp(struct ehca_shca *shca, 62 struct ehca_qp *ehca_qp, 63 struct ib_qp_init_attr *qp_init_attr) 64{ 65 u32 pma_qp_nr, bma_qp_nr; 66 u64 ret; 67 u8 port = qp_init_attr->port_num; 68 int counter; 69 70 shca->sport[port - 1].port_state = IB_PORT_DOWN; 71 72 switch (qp_init_attr->qp_type) { 73 case IB_QPT_SMI: 74 /* function not supported yet */ 75 break; 76 case IB_QPT_GSI: 77 ret = hipz_h_define_aqp1(shca->ipz_hca_handle, 78 ehca_qp->ipz_qp_handle, 79 ehca_qp->galpas.kernel, 80 (u32) qp_init_attr->port_num, 81 &pma_qp_nr, &bma_qp_nr); 82 83 if (ret != H_SUCCESS) { 84 ehca_err(&shca->ib_device, 85 "Can't define AQP1 for port %x. rc=%lx", 86 port, ret); 87 return ret; 88 } 89 break; 90 default: 91 ehca_err(&shca->ib_device, "invalid qp_type=%x", 92 qp_init_attr->qp_type); 93 return H_PARAMETER; 94 } 95 96 for (counter = 0; 97 shca->sport[port - 1].port_state != IB_PORT_ACTIVE && 98 counter < ehca_port_act_time; 99 counter++) { 100 ehca_dbg(&shca->ib_device, "... wait until port %x is active", 101 port); 102 msleep_interruptible(1000); 103 } 104 105 if (counter == ehca_port_act_time) { 106 ehca_err(&shca->ib_device, "Port %x is not active.", port); 107 return H_HARDWARE; 108 } 109 110 return H_SUCCESS; 111} 112