112 lines
3.3 KiB
C
112 lines
3.3 KiB
C
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/*
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* IBM eServer eHCA Infiniband device driver for Linux on POWER
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*
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* SQP functions
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*
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* Authors: Khadija Souissi <souissi@de.ibm.com>
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* Heiko J Schick <schickhj@de.ibm.com>
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*
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* Copyright (c) 2005 IBM Corporation
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*
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* All rights reserved.
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*
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* This source code is distributed under a dual license of GPL v2.0 and OpenIB
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* BSD.
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*
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* OpenIB BSD License
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*
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* Redistribution and use in source and binary forms, with or without
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* modification, are permitted provided that the following conditions are met:
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*
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* Redistributions of source code must retain the above copyright notice, this
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* list of conditions and the following disclaimer.
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*
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* Redistributions in binary form must reproduce the above copyright notice,
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* this list of conditions and the following disclaimer in the documentation
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* and/or other materials
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* provided with the distribution.
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*
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* THIS SOFTWARE IS PROVIDED BY THE COPYRIGHT HOLDERS AND CONTRIBUTORS "AS IS"
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* AND ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE
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* IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE
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* ARE DISCLAIMED. IN NO EVENT SHALL THE COPYRIGHT OWNER OR CONTRIBUTORS BE
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* LIABLE FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR
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* CONSEQUENTIAL DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF
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* SUBSTITUTE GOODS OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR
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* BUSINESS INTERRUPTION) HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER
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* IN CONTRACT, STRICT LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE)
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* ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE
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* POSSIBILITY OF SUCH DAMAGE.
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*/
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#include <linux/module.h>
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#include <linux/err.h>
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#include "ehca_classes.h"
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#include "ehca_tools.h"
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#include "ehca_qes.h"
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#include "ehca_iverbs.h"
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#include "hcp_if.h"
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/**
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* ehca_define_sqp - Defines special queue pair 1 (GSI QP). When special queue
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* pair is created successfully, the corresponding port gets active.
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*
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* Define Special Queue pair 0 (SMI QP) is still not supported.
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*
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* @qp_init_attr: Queue pair init attributes with port and queue pair type
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*/
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u64 ehca_define_sqp(struct ehca_shca *shca,
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struct ehca_qp *ehca_qp,
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struct ib_qp_init_attr *qp_init_attr)
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{
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u32 pma_qp_nr, bma_qp_nr;
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u64 ret;
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u8 port = qp_init_attr->port_num;
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int counter;
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shca->sport[port - 1].port_state = IB_PORT_DOWN;
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switch (qp_init_attr->qp_type) {
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case IB_QPT_SMI:
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/* function not supported yet */
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break;
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case IB_QPT_GSI:
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ret = hipz_h_define_aqp1(shca->ipz_hca_handle,
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ehca_qp->ipz_qp_handle,
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ehca_qp->galpas.kernel,
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(u32) qp_init_attr->port_num,
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&pma_qp_nr, &bma_qp_nr);
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if (ret != H_SUCCESS) {
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ehca_err(&shca->ib_device,
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"Can't define AQP1 for port %x. rc=%lx",
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port, ret);
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return ret;
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}
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break;
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default:
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ehca_err(&shca->ib_device, "invalid qp_type=%x",
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qp_init_attr->qp_type);
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return H_PARAMETER;
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}
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for (counter = 0;
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shca->sport[port - 1].port_state != IB_PORT_ACTIVE &&
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counter < ehca_port_act_time;
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counter++) {
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ehca_dbg(&shca->ib_device, "... wait until port %x is active",
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port);
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msleep_interruptible(1000);
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}
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if (counter == ehca_port_act_time) {
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ehca_err(&shca->ib_device, "Port %x is not active.", port);
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return H_HARDWARE;
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}
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return H_SUCCESS;
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}
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