c55a0ddd8e
AQP0/1 should report qp_num={0|1} and the actual QP# should be stored in struct ehca_qp, not the other way round. Signed-off-by: Joachim Fenkes <fenkes@de.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
1457 lines
41 KiB
C
1457 lines
41 KiB
C
/*
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* IBM eServer eHCA Infiniband device driver for Linux on POWER
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*
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* QP functions
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*
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* Authors: Waleri Fomin <fomin@de.ibm.com>
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* Hoang-Nam Nguyen <hnguyen@de.ibm.com>
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* Reinhard Ernst <rernst@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 <asm/current.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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#include "hipz_fns.h"
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static struct kmem_cache *qp_cache;
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/*
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* attributes not supported by query qp
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*/
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#define QP_ATTR_QUERY_NOT_SUPPORTED (IB_QP_MAX_DEST_RD_ATOMIC | \
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IB_QP_MAX_QP_RD_ATOMIC | \
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IB_QP_ACCESS_FLAGS | \
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IB_QP_EN_SQD_ASYNC_NOTIFY)
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/*
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* ehca (internal) qp state values
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*/
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enum ehca_qp_state {
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EHCA_QPS_RESET = 1,
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EHCA_QPS_INIT = 2,
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EHCA_QPS_RTR = 3,
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EHCA_QPS_RTS = 5,
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EHCA_QPS_SQD = 6,
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EHCA_QPS_SQE = 8,
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EHCA_QPS_ERR = 128
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};
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/*
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* qp state transitions as defined by IB Arch Rel 1.1 page 431
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*/
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enum ib_qp_statetrans {
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IB_QPST_ANY2RESET,
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IB_QPST_ANY2ERR,
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IB_QPST_RESET2INIT,
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IB_QPST_INIT2RTR,
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IB_QPST_INIT2INIT,
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IB_QPST_RTR2RTS,
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IB_QPST_RTS2SQD,
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IB_QPST_RTS2RTS,
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IB_QPST_SQD2RTS,
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IB_QPST_SQE2RTS,
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IB_QPST_SQD2SQD,
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IB_QPST_MAX /* nr of transitions, this must be last!!! */
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};
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/*
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* ib2ehca_qp_state maps IB to ehca qp_state
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* returns ehca qp state corresponding to given ib qp state
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*/
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static inline enum ehca_qp_state ib2ehca_qp_state(enum ib_qp_state ib_qp_state)
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{
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switch (ib_qp_state) {
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case IB_QPS_RESET:
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return EHCA_QPS_RESET;
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case IB_QPS_INIT:
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return EHCA_QPS_INIT;
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case IB_QPS_RTR:
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return EHCA_QPS_RTR;
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case IB_QPS_RTS:
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return EHCA_QPS_RTS;
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case IB_QPS_SQD:
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return EHCA_QPS_SQD;
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case IB_QPS_SQE:
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return EHCA_QPS_SQE;
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case IB_QPS_ERR:
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return EHCA_QPS_ERR;
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default:
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ehca_gen_err("invalid ib_qp_state=%x", ib_qp_state);
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return -EINVAL;
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}
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}
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/*
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* ehca2ib_qp_state maps ehca to IB qp_state
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* returns ib qp state corresponding to given ehca qp state
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*/
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static inline enum ib_qp_state ehca2ib_qp_state(enum ehca_qp_state
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ehca_qp_state)
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{
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switch (ehca_qp_state) {
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case EHCA_QPS_RESET:
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return IB_QPS_RESET;
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case EHCA_QPS_INIT:
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return IB_QPS_INIT;
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case EHCA_QPS_RTR:
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return IB_QPS_RTR;
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case EHCA_QPS_RTS:
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return IB_QPS_RTS;
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case EHCA_QPS_SQD:
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return IB_QPS_SQD;
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case EHCA_QPS_SQE:
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return IB_QPS_SQE;
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case EHCA_QPS_ERR:
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return IB_QPS_ERR;
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default:
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ehca_gen_err("invalid ehca_qp_state=%x", ehca_qp_state);
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return -EINVAL;
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}
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}
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/*
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* ehca_qp_type used as index for req_attr and opt_attr of
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* struct ehca_modqp_statetrans
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*/
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enum ehca_qp_type {
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QPT_RC = 0,
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QPT_UC = 1,
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QPT_UD = 2,
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QPT_SQP = 3,
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QPT_MAX
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};
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/*
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* ib2ehcaqptype maps Ib to ehca qp_type
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* returns ehca qp type corresponding to ib qp type
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*/
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static inline enum ehca_qp_type ib2ehcaqptype(enum ib_qp_type ibqptype)
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{
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switch (ibqptype) {
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case IB_QPT_SMI:
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case IB_QPT_GSI:
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return QPT_SQP;
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case IB_QPT_RC:
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return QPT_RC;
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case IB_QPT_UC:
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return QPT_UC;
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case IB_QPT_UD:
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return QPT_UD;
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default:
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ehca_gen_err("Invalid ibqptype=%x", ibqptype);
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return -EINVAL;
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}
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}
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static inline enum ib_qp_statetrans get_modqp_statetrans(int ib_fromstate,
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int ib_tostate)
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{
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int index = -EINVAL;
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switch (ib_tostate) {
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case IB_QPS_RESET:
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index = IB_QPST_ANY2RESET;
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break;
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case IB_QPS_INIT:
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switch (ib_fromstate) {
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case IB_QPS_RESET:
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index = IB_QPST_RESET2INIT;
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break;
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case IB_QPS_INIT:
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index = IB_QPST_INIT2INIT;
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break;
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}
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break;
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case IB_QPS_RTR:
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if (ib_fromstate == IB_QPS_INIT)
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index = IB_QPST_INIT2RTR;
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break;
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case IB_QPS_RTS:
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switch (ib_fromstate) {
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case IB_QPS_RTR:
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index = IB_QPST_RTR2RTS;
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break;
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case IB_QPS_RTS:
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index = IB_QPST_RTS2RTS;
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break;
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case IB_QPS_SQD:
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index = IB_QPST_SQD2RTS;
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break;
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case IB_QPS_SQE:
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index = IB_QPST_SQE2RTS;
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break;
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}
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break;
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case IB_QPS_SQD:
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if (ib_fromstate == IB_QPS_RTS)
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index = IB_QPST_RTS2SQD;
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break;
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case IB_QPS_SQE:
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break;
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case IB_QPS_ERR:
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index = IB_QPST_ANY2ERR;
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break;
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default:
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break;
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}
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return index;
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}
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enum ehca_service_type {
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ST_RC = 0,
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ST_UC = 1,
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ST_RD = 2,
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ST_UD = 3
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};
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/*
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* ibqptype2servicetype returns hcp service type corresponding to given
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* ib qp type used by create_qp()
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*/
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static inline int ibqptype2servicetype(enum ib_qp_type ibqptype)
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{
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switch (ibqptype) {
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case IB_QPT_SMI:
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case IB_QPT_GSI:
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return ST_UD;
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case IB_QPT_RC:
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return ST_RC;
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case IB_QPT_UC:
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return ST_UC;
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case IB_QPT_UD:
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return ST_UD;
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case IB_QPT_RAW_IPV6:
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return -EINVAL;
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case IB_QPT_RAW_ETY:
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return -EINVAL;
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default:
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ehca_gen_err("Invalid ibqptype=%x", ibqptype);
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return -EINVAL;
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}
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}
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/*
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* init_qp_queues initializes/constructs r/squeue and registers queue pages.
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*/
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static inline int init_qp_queues(struct ehca_shca *shca,
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struct ehca_qp *my_qp,
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int nr_sq_pages,
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int nr_rq_pages,
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int swqe_size,
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int rwqe_size,
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int nr_send_sges, int nr_receive_sges)
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{
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int ret, cnt, ipz_rc;
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void *vpage;
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u64 rpage, h_ret;
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struct ib_device *ib_dev = &shca->ib_device;
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struct ipz_adapter_handle ipz_hca_handle = shca->ipz_hca_handle;
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ipz_rc = ipz_queue_ctor(&my_qp->ipz_squeue,
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nr_sq_pages,
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EHCA_PAGESIZE, swqe_size, nr_send_sges);
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if (!ipz_rc) {
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ehca_err(ib_dev,"Cannot allocate page for squeue. ipz_rc=%x",
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ipz_rc);
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return -EBUSY;
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}
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ipz_rc = ipz_queue_ctor(&my_qp->ipz_rqueue,
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nr_rq_pages,
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EHCA_PAGESIZE, rwqe_size, nr_receive_sges);
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if (!ipz_rc) {
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ehca_err(ib_dev, "Cannot allocate page for rqueue. ipz_rc=%x",
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ipz_rc);
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ret = -EBUSY;
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goto init_qp_queues0;
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}
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/* register SQ pages */
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for (cnt = 0; cnt < nr_sq_pages; cnt++) {
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vpage = ipz_qpageit_get_inc(&my_qp->ipz_squeue);
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if (!vpage) {
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ehca_err(ib_dev, "SQ ipz_qpageit_get_inc() "
|
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"failed p_vpage= %p", vpage);
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ret = -EINVAL;
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goto init_qp_queues1;
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}
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rpage = virt_to_abs(vpage);
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|
|
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h_ret = hipz_h_register_rpage_qp(ipz_hca_handle,
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my_qp->ipz_qp_handle,
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&my_qp->pf, 0, 0,
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rpage, 1,
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my_qp->galpas.kernel);
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if (h_ret < H_SUCCESS) {
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ehca_err(ib_dev, "SQ hipz_qp_register_rpage()"
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" failed rc=%lx", h_ret);
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ret = ehca2ib_return_code(h_ret);
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goto init_qp_queues1;
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}
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}
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ipz_qeit_reset(&my_qp->ipz_squeue);
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|
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/* register RQ pages */
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for (cnt = 0; cnt < nr_rq_pages; cnt++) {
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vpage = ipz_qpageit_get_inc(&my_qp->ipz_rqueue);
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if (!vpage) {
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ehca_err(ib_dev, "RQ ipz_qpageit_get_inc() "
|
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"failed p_vpage = %p", vpage);
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ret = -EINVAL;
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goto init_qp_queues1;
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}
|
|
|
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rpage = virt_to_abs(vpage);
|
|
|
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h_ret = hipz_h_register_rpage_qp(ipz_hca_handle,
|
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my_qp->ipz_qp_handle,
|
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&my_qp->pf, 0, 1,
|
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rpage, 1,my_qp->galpas.kernel);
|
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if (h_ret < H_SUCCESS) {
|
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ehca_err(ib_dev, "RQ hipz_qp_register_rpage() failed "
|
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"rc=%lx", h_ret);
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ret = ehca2ib_return_code(h_ret);
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goto init_qp_queues1;
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}
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if (cnt == (nr_rq_pages - 1)) { /* last page! */
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if (h_ret != H_SUCCESS) {
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ehca_err(ib_dev, "RQ hipz_qp_register_rpage() "
|
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"h_ret= %lx ", h_ret);
|
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ret = ehca2ib_return_code(h_ret);
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goto init_qp_queues1;
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}
|
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vpage = ipz_qpageit_get_inc(&my_qp->ipz_rqueue);
|
|
if (vpage) {
|
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ehca_err(ib_dev, "ipz_qpageit_get_inc() "
|
|
"should not succeed vpage=%p", vpage);
|
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ret = -EINVAL;
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goto init_qp_queues1;
|
|
}
|
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} else {
|
|
if (h_ret != H_PAGE_REGISTERED) {
|
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ehca_err(ib_dev, "RQ hipz_qp_register_rpage() "
|
|
"h_ret= %lx ", h_ret);
|
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ret = ehca2ib_return_code(h_ret);
|
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goto init_qp_queues1;
|
|
}
|
|
}
|
|
}
|
|
|
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ipz_qeit_reset(&my_qp->ipz_rqueue);
|
|
|
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return 0;
|
|
|
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init_qp_queues1:
|
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ipz_queue_dtor(&my_qp->ipz_rqueue);
|
|
init_qp_queues0:
|
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ipz_queue_dtor(&my_qp->ipz_squeue);
|
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return ret;
|
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}
|
|
|
|
struct ib_qp *ehca_create_qp(struct ib_pd *pd,
|
|
struct ib_qp_init_attr *init_attr,
|
|
struct ib_udata *udata)
|
|
{
|
|
static int da_rc_msg_size[]={ 128, 256, 512, 1024, 2048, 4096 };
|
|
static int da_ud_sq_msg_size[]={ 128, 384, 896, 1920, 3968 };
|
|
struct ehca_qp *my_qp;
|
|
struct ehca_pd *my_pd = container_of(pd, struct ehca_pd, ib_pd);
|
|
struct ehca_shca *shca = container_of(pd->device, struct ehca_shca,
|
|
ib_device);
|
|
struct ib_ucontext *context = NULL;
|
|
u64 h_ret;
|
|
int max_send_sge, max_recv_sge, ret;
|
|
|
|
/* h_call's out parameters */
|
|
struct ehca_alloc_qp_parms parms;
|
|
u32 swqe_size = 0, rwqe_size = 0;
|
|
u8 daqp_completion, isdaqp;
|
|
unsigned long flags;
|
|
|
|
if (init_attr->sq_sig_type != IB_SIGNAL_REQ_WR &&
|
|
init_attr->sq_sig_type != IB_SIGNAL_ALL_WR) {
|
|
ehca_err(pd->device, "init_attr->sg_sig_type=%x not allowed",
|
|
init_attr->sq_sig_type);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
/* save daqp completion bits */
|
|
daqp_completion = init_attr->qp_type & 0x60;
|
|
/* save daqp bit */
|
|
isdaqp = (init_attr->qp_type & 0x80) ? 1 : 0;
|
|
init_attr->qp_type = init_attr->qp_type & 0x1F;
|
|
|
|
if (init_attr->qp_type != IB_QPT_UD &&
|
|
init_attr->qp_type != IB_QPT_SMI &&
|
|
init_attr->qp_type != IB_QPT_GSI &&
|
|
init_attr->qp_type != IB_QPT_UC &&
|
|
init_attr->qp_type != IB_QPT_RC) {
|
|
ehca_err(pd->device, "wrong QP Type=%x", init_attr->qp_type);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
if ((init_attr->qp_type != IB_QPT_RC && init_attr->qp_type != IB_QPT_UD)
|
|
&& isdaqp) {
|
|
ehca_err(pd->device, "unsupported LL QP Type=%x",
|
|
init_attr->qp_type);
|
|
return ERR_PTR(-EINVAL);
|
|
} else if (init_attr->qp_type == IB_QPT_RC && isdaqp &&
|
|
(init_attr->cap.max_send_wr > 255 ||
|
|
init_attr->cap.max_recv_wr > 255 )) {
|
|
ehca_err(pd->device, "Invalid Number of max_sq_wr =%x "
|
|
"or max_rq_wr=%x for QP Type=%x",
|
|
init_attr->cap.max_send_wr,
|
|
init_attr->cap.max_recv_wr,init_attr->qp_type);
|
|
return ERR_PTR(-EINVAL);
|
|
} else if (init_attr->qp_type == IB_QPT_UD && isdaqp &&
|
|
init_attr->cap.max_send_wr > 255) {
|
|
ehca_err(pd->device,
|
|
"Invalid Number of max_send_wr=%x for UD QP_TYPE=%x",
|
|
init_attr->cap.max_send_wr, init_attr->qp_type);
|
|
return ERR_PTR(-EINVAL);
|
|
}
|
|
|
|
if (pd->uobject && udata)
|
|
context = pd->uobject->context;
|
|
|
|
my_qp = kmem_cache_zalloc(qp_cache, GFP_KERNEL);
|
|
if (!my_qp) {
|
|
ehca_err(pd->device, "pd=%p not enough memory to alloc qp", pd);
|
|
return ERR_PTR(-ENOMEM);
|
|
}
|
|
|
|
memset (&parms, 0, sizeof(struct ehca_alloc_qp_parms));
|
|
spin_lock_init(&my_qp->spinlock_s);
|
|
spin_lock_init(&my_qp->spinlock_r);
|
|
|
|
my_qp->recv_cq =
|
|
container_of(init_attr->recv_cq, struct ehca_cq, ib_cq);
|
|
my_qp->send_cq =
|
|
container_of(init_attr->send_cq, struct ehca_cq, ib_cq);
|
|
|
|
my_qp->init_attr = *init_attr;
|
|
|
|
do {
|
|
if (!idr_pre_get(&ehca_qp_idr, GFP_KERNEL)) {
|
|
ret = -ENOMEM;
|
|
ehca_err(pd->device, "Can't reserve idr resources.");
|
|
goto create_qp_exit0;
|
|
}
|
|
|
|
spin_lock_irqsave(&ehca_qp_idr_lock, flags);
|
|
ret = idr_get_new(&ehca_qp_idr, my_qp, &my_qp->token);
|
|
spin_unlock_irqrestore(&ehca_qp_idr_lock, flags);
|
|
|
|
} while (ret == -EAGAIN);
|
|
|
|
if (ret) {
|
|
ret = -ENOMEM;
|
|
ehca_err(pd->device, "Can't allocate new idr entry.");
|
|
goto create_qp_exit0;
|
|
}
|
|
|
|
parms.servicetype = ibqptype2servicetype(init_attr->qp_type);
|
|
if (parms.servicetype < 0) {
|
|
ret = -EINVAL;
|
|
ehca_err(pd->device, "Invalid qp_type=%x", init_attr->qp_type);
|
|
goto create_qp_exit0;
|
|
}
|
|
|
|
if (init_attr->sq_sig_type == IB_SIGNAL_ALL_WR)
|
|
parms.sigtype = HCALL_SIGT_EVERY;
|
|
else
|
|
parms.sigtype = HCALL_SIGT_BY_WQE;
|
|
|
|
/* UD_AV CIRCUMVENTION */
|
|
max_send_sge = init_attr->cap.max_send_sge;
|
|
max_recv_sge = init_attr->cap.max_recv_sge;
|
|
if (IB_QPT_UD == init_attr->qp_type ||
|
|
IB_QPT_GSI == init_attr->qp_type ||
|
|
IB_QPT_SMI == init_attr->qp_type) {
|
|
max_send_sge += 2;
|
|
max_recv_sge += 2;
|
|
}
|
|
|
|
parms.ipz_eq_handle = shca->eq.ipz_eq_handle;
|
|
parms.daqp_ctrl = isdaqp | daqp_completion;
|
|
parms.pd = my_pd->fw_pd;
|
|
parms.max_recv_sge = max_recv_sge;
|
|
parms.max_send_sge = max_send_sge;
|
|
|
|
h_ret = hipz_h_alloc_resource_qp(shca->ipz_hca_handle, my_qp, &parms);
|
|
|
|
if (h_ret != H_SUCCESS) {
|
|
ehca_err(pd->device, "h_alloc_resource_qp() failed h_ret=%lx",
|
|
h_ret);
|
|
ret = ehca2ib_return_code(h_ret);
|
|
goto create_qp_exit1;
|
|
}
|
|
|
|
my_qp->ib_qp.qp_num = my_qp->real_qp_num;
|
|
|
|
switch (init_attr->qp_type) {
|
|
case IB_QPT_RC:
|
|
if (isdaqp == 0) {
|
|
swqe_size = offsetof(struct ehca_wqe, u.nud.sg_list[
|
|
(parms.act_nr_send_sges)]);
|
|
rwqe_size = offsetof(struct ehca_wqe, u.nud.sg_list[
|
|
(parms.act_nr_recv_sges)]);
|
|
} else { /* for daqp we need to use msg size, not wqe size */
|
|
swqe_size = da_rc_msg_size[max_send_sge];
|
|
rwqe_size = da_rc_msg_size[max_recv_sge];
|
|
parms.act_nr_send_sges = 1;
|
|
parms.act_nr_recv_sges = 1;
|
|
}
|
|
break;
|
|
case IB_QPT_UC:
|
|
swqe_size = offsetof(struct ehca_wqe,
|
|
u.nud.sg_list[parms.act_nr_send_sges]);
|
|
rwqe_size = offsetof(struct ehca_wqe,
|
|
u.nud.sg_list[parms.act_nr_recv_sges]);
|
|
break;
|
|
|
|
case IB_QPT_UD:
|
|
case IB_QPT_GSI:
|
|
case IB_QPT_SMI:
|
|
/* UD circumvention */
|
|
parms.act_nr_recv_sges -= 2;
|
|
parms.act_nr_send_sges -= 2;
|
|
if (isdaqp) {
|
|
swqe_size = da_ud_sq_msg_size[max_send_sge];
|
|
rwqe_size = da_rc_msg_size[max_recv_sge];
|
|
parms.act_nr_send_sges = 1;
|
|
parms.act_nr_recv_sges = 1;
|
|
} else {
|
|
swqe_size = offsetof(struct ehca_wqe,
|
|
u.ud_av.sg_list[parms.act_nr_send_sges]);
|
|
rwqe_size = offsetof(struct ehca_wqe,
|
|
u.ud_av.sg_list[parms.act_nr_recv_sges]);
|
|
}
|
|
|
|
if (IB_QPT_GSI == init_attr->qp_type ||
|
|
IB_QPT_SMI == init_attr->qp_type) {
|
|
parms.act_nr_send_wqes = init_attr->cap.max_send_wr;
|
|
parms.act_nr_recv_wqes = init_attr->cap.max_recv_wr;
|
|
parms.act_nr_send_sges = init_attr->cap.max_send_sge;
|
|
parms.act_nr_recv_sges = init_attr->cap.max_recv_sge;
|
|
my_qp->ib_qp.qp_num =
|
|
(init_attr->qp_type == IB_QPT_SMI) ? 0 : 1;
|
|
}
|
|
|
|
break;
|
|
|
|
default:
|
|
break;
|
|
}
|
|
|
|
/* initializes r/squeue and registers queue pages */
|
|
ret = init_qp_queues(shca, my_qp,
|
|
parms.nr_sq_pages, parms.nr_rq_pages,
|
|
swqe_size, rwqe_size,
|
|
parms.act_nr_send_sges, parms.act_nr_recv_sges);
|
|
if (ret) {
|
|
ehca_err(pd->device,
|
|
"Couldn't initialize r/squeue and pages ret=%x", ret);
|
|
goto create_qp_exit2;
|
|
}
|
|
|
|
my_qp->ib_qp.pd = &my_pd->ib_pd;
|
|
my_qp->ib_qp.device = my_pd->ib_pd.device;
|
|
|
|
my_qp->ib_qp.recv_cq = init_attr->recv_cq;
|
|
my_qp->ib_qp.send_cq = init_attr->send_cq;
|
|
|
|
my_qp->ib_qp.qp_type = init_attr->qp_type;
|
|
|
|
my_qp->qp_type = init_attr->qp_type;
|
|
my_qp->ib_qp.srq = init_attr->srq;
|
|
|
|
my_qp->ib_qp.qp_context = init_attr->qp_context;
|
|
my_qp->ib_qp.event_handler = init_attr->event_handler;
|
|
|
|
init_attr->cap.max_inline_data = 0; /* not supported yet */
|
|
init_attr->cap.max_recv_sge = parms.act_nr_recv_sges;
|
|
init_attr->cap.max_recv_wr = parms.act_nr_recv_wqes;
|
|
init_attr->cap.max_send_sge = parms.act_nr_send_sges;
|
|
init_attr->cap.max_send_wr = parms.act_nr_send_wqes;
|
|
|
|
/* NOTE: define_apq0() not supported yet */
|
|
if (init_attr->qp_type == IB_QPT_GSI) {
|
|
h_ret = ehca_define_sqp(shca, my_qp, init_attr);
|
|
if (h_ret != H_SUCCESS) {
|
|
ehca_err(pd->device, "ehca_define_sqp() failed rc=%lx",
|
|
h_ret);
|
|
ret = ehca2ib_return_code(h_ret);
|
|
goto create_qp_exit3;
|
|
}
|
|
}
|
|
if (init_attr->send_cq) {
|
|
struct ehca_cq *cq = container_of(init_attr->send_cq,
|
|
struct ehca_cq, ib_cq);
|
|
ret = ehca_cq_assign_qp(cq, my_qp);
|
|
if (ret) {
|
|
ehca_err(pd->device, "Couldn't assign qp to send_cq ret=%x",
|
|
ret);
|
|
goto create_qp_exit3;
|
|
}
|
|
my_qp->send_cq = cq;
|
|
}
|
|
/* copy queues, galpa data to user space */
|
|
if (context && udata) {
|
|
struct ipz_queue *ipz_rqueue = &my_qp->ipz_rqueue;
|
|
struct ipz_queue *ipz_squeue = &my_qp->ipz_squeue;
|
|
struct ehca_create_qp_resp resp;
|
|
memset(&resp, 0, sizeof(resp));
|
|
|
|
resp.qp_num = my_qp->real_qp_num;
|
|
resp.token = my_qp->token;
|
|
resp.qp_type = my_qp->qp_type;
|
|
resp.qkey = my_qp->qkey;
|
|
resp.real_qp_num = my_qp->real_qp_num;
|
|
/* rqueue properties */
|
|
resp.ipz_rqueue.qe_size = ipz_rqueue->qe_size;
|
|
resp.ipz_rqueue.act_nr_of_sg = ipz_rqueue->act_nr_of_sg;
|
|
resp.ipz_rqueue.queue_length = ipz_rqueue->queue_length;
|
|
resp.ipz_rqueue.pagesize = ipz_rqueue->pagesize;
|
|
resp.ipz_rqueue.toggle_state = ipz_rqueue->toggle_state;
|
|
/* squeue properties */
|
|
resp.ipz_squeue.qe_size = ipz_squeue->qe_size;
|
|
resp.ipz_squeue.act_nr_of_sg = ipz_squeue->act_nr_of_sg;
|
|
resp.ipz_squeue.queue_length = ipz_squeue->queue_length;
|
|
resp.ipz_squeue.pagesize = ipz_squeue->pagesize;
|
|
resp.ipz_squeue.toggle_state = ipz_squeue->toggle_state;
|
|
if (ib_copy_to_udata(udata, &resp, sizeof resp)) {
|
|
ehca_err(pd->device, "Copy to udata failed");
|
|
ret = -EINVAL;
|
|
goto create_qp_exit3;
|
|
}
|
|
}
|
|
|
|
return &my_qp->ib_qp;
|
|
|
|
create_qp_exit3:
|
|
ipz_queue_dtor(&my_qp->ipz_rqueue);
|
|
ipz_queue_dtor(&my_qp->ipz_squeue);
|
|
|
|
create_qp_exit2:
|
|
hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp);
|
|
|
|
create_qp_exit1:
|
|
spin_lock_irqsave(&ehca_qp_idr_lock, flags);
|
|
idr_remove(&ehca_qp_idr, my_qp->token);
|
|
spin_unlock_irqrestore(&ehca_qp_idr_lock, flags);
|
|
|
|
create_qp_exit0:
|
|
kmem_cache_free(qp_cache, my_qp);
|
|
return ERR_PTR(ret);
|
|
}
|
|
|
|
/*
|
|
* prepare_sqe_rts called by internal_modify_qp() at trans sqe -> rts
|
|
* set purge bit of bad wqe and subsequent wqes to avoid reentering sqe
|
|
* returns total number of bad wqes in bad_wqe_cnt
|
|
*/
|
|
static int prepare_sqe_rts(struct ehca_qp *my_qp, struct ehca_shca *shca,
|
|
int *bad_wqe_cnt)
|
|
{
|
|
u64 h_ret;
|
|
struct ipz_queue *squeue;
|
|
void *bad_send_wqe_p, *bad_send_wqe_v;
|
|
u64 q_ofs;
|
|
struct ehca_wqe *wqe;
|
|
int qp_num = my_qp->ib_qp.qp_num;
|
|
|
|
/* get send wqe pointer */
|
|
h_ret = hipz_h_disable_and_get_wqe(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle, &my_qp->pf,
|
|
&bad_send_wqe_p, NULL, 2);
|
|
if (h_ret != H_SUCCESS) {
|
|
ehca_err(&shca->ib_device, "hipz_h_disable_and_get_wqe() failed"
|
|
" ehca_qp=%p qp_num=%x h_ret=%lx",
|
|
my_qp, qp_num, h_ret);
|
|
return ehca2ib_return_code(h_ret);
|
|
}
|
|
bad_send_wqe_p = (void*)((u64)bad_send_wqe_p & (~(1L<<63)));
|
|
ehca_dbg(&shca->ib_device, "qp_num=%x bad_send_wqe_p=%p",
|
|
qp_num, bad_send_wqe_p);
|
|
/* convert wqe pointer to vadr */
|
|
bad_send_wqe_v = abs_to_virt((u64)bad_send_wqe_p);
|
|
if (ehca_debug_level)
|
|
ehca_dmp(bad_send_wqe_v, 32, "qp_num=%x bad_wqe", qp_num);
|
|
squeue = &my_qp->ipz_squeue;
|
|
if (ipz_queue_abs_to_offset(squeue, (u64)bad_send_wqe_p, &q_ofs)) {
|
|
ehca_err(&shca->ib_device, "failed to get wqe offset qp_num=%x"
|
|
" bad_send_wqe_p=%p", qp_num, bad_send_wqe_p);
|
|
return -EFAULT;
|
|
}
|
|
|
|
/* loop sets wqe's purge bit */
|
|
wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs);
|
|
*bad_wqe_cnt = 0;
|
|
while (wqe->optype != 0xff && wqe->wqef != 0xff) {
|
|
if (ehca_debug_level)
|
|
ehca_dmp(wqe, 32, "qp_num=%x wqe", qp_num);
|
|
wqe->nr_of_data_seg = 0; /* suppress data access */
|
|
wqe->wqef = WQEF_PURGE; /* WQE to be purged */
|
|
q_ofs = ipz_queue_advance_offset(squeue, q_ofs);
|
|
wqe = (struct ehca_wqe*)ipz_qeit_calc(squeue, q_ofs);
|
|
*bad_wqe_cnt = (*bad_wqe_cnt)+1;
|
|
}
|
|
/*
|
|
* bad wqe will be reprocessed and ignored when pol_cq() is called,
|
|
* i.e. nr of wqes with flush error status is one less
|
|
*/
|
|
ehca_dbg(&shca->ib_device, "qp_num=%x flusherr_wqe_cnt=%x",
|
|
qp_num, (*bad_wqe_cnt)-1);
|
|
wqe->wqef = 0;
|
|
|
|
return 0;
|
|
}
|
|
|
|
/*
|
|
* internal_modify_qp with circumvention to handle aqp0 properly
|
|
* smi_reset2init indicates if this is an internal reset-to-init-call for
|
|
* smi. This flag must always be zero if called from ehca_modify_qp()!
|
|
* This internal func was intorduced to avoid recursion of ehca_modify_qp()!
|
|
*/
|
|
static int internal_modify_qp(struct ib_qp *ibqp,
|
|
struct ib_qp_attr *attr,
|
|
int attr_mask, int smi_reset2init)
|
|
{
|
|
enum ib_qp_state qp_cur_state, qp_new_state;
|
|
int cnt, qp_attr_idx, ret = 0;
|
|
enum ib_qp_statetrans statetrans;
|
|
struct hcp_modify_qp_control_block *mqpcb;
|
|
struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp);
|
|
struct ehca_shca *shca =
|
|
container_of(ibqp->pd->device, struct ehca_shca, ib_device);
|
|
u64 update_mask;
|
|
u64 h_ret;
|
|
int bad_wqe_cnt = 0;
|
|
int squeue_locked = 0;
|
|
unsigned long spl_flags = 0;
|
|
|
|
/* do query_qp to obtain current attr values */
|
|
mqpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
|
|
if (!mqpcb) {
|
|
ehca_err(ibqp->device, "Could not get zeroed page for mqpcb "
|
|
"ehca_qp=%p qp_num=%x ", my_qp, ibqp->qp_num);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
h_ret = hipz_h_query_qp(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle,
|
|
&my_qp->pf,
|
|
mqpcb, my_qp->galpas.kernel);
|
|
if (h_ret != H_SUCCESS) {
|
|
ehca_err(ibqp->device, "hipz_h_query_qp() failed "
|
|
"ehca_qp=%p qp_num=%x h_ret=%lx",
|
|
my_qp, ibqp->qp_num, h_ret);
|
|
ret = ehca2ib_return_code(h_ret);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
qp_cur_state = ehca2ib_qp_state(mqpcb->qp_state);
|
|
|
|
if (qp_cur_state == -EINVAL) { /* invalid qp state */
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device, "Invalid current ehca_qp_state=%x "
|
|
"ehca_qp=%p qp_num=%x",
|
|
mqpcb->qp_state, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit1;
|
|
}
|
|
/*
|
|
* circumvention to set aqp0 initial state to init
|
|
* as expected by IB spec
|
|
*/
|
|
if (smi_reset2init == 0 &&
|
|
ibqp->qp_type == IB_QPT_SMI &&
|
|
qp_cur_state == IB_QPS_RESET &&
|
|
(attr_mask & IB_QP_STATE) &&
|
|
attr->qp_state == IB_QPS_INIT) { /* RESET -> INIT */
|
|
struct ib_qp_attr smiqp_attr = {
|
|
.qp_state = IB_QPS_INIT,
|
|
.port_num = my_qp->init_attr.port_num,
|
|
.pkey_index = 0,
|
|
.qkey = 0
|
|
};
|
|
int smiqp_attr_mask = IB_QP_STATE | IB_QP_PORT |
|
|
IB_QP_PKEY_INDEX | IB_QP_QKEY;
|
|
int smirc = internal_modify_qp(
|
|
ibqp, &smiqp_attr, smiqp_attr_mask, 1);
|
|
if (smirc) {
|
|
ehca_err(ibqp->device, "SMI RESET -> INIT failed. "
|
|
"ehca_modify_qp() rc=%x", smirc);
|
|
ret = H_PARAMETER;
|
|
goto modify_qp_exit1;
|
|
}
|
|
qp_cur_state = IB_QPS_INIT;
|
|
ehca_dbg(ibqp->device, "SMI RESET -> INIT succeeded");
|
|
}
|
|
/* is transmitted current state equal to "real" current state */
|
|
if ((attr_mask & IB_QP_CUR_STATE) &&
|
|
qp_cur_state != attr->cur_qp_state) {
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device,
|
|
"Invalid IB_QP_CUR_STATE attr->curr_qp_state=%x <>"
|
|
" actual cur_qp_state=%x. ehca_qp=%p qp_num=%x",
|
|
attr->cur_qp_state, qp_cur_state, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
ehca_dbg(ibqp->device,"ehca_qp=%p qp_num=%x current qp_state=%x "
|
|
"new qp_state=%x attribute_mask=%x",
|
|
my_qp, ibqp->qp_num, qp_cur_state, attr->qp_state, attr_mask);
|
|
|
|
qp_new_state = attr_mask & IB_QP_STATE ? attr->qp_state : qp_cur_state;
|
|
if (!smi_reset2init &&
|
|
!ib_modify_qp_is_ok(qp_cur_state, qp_new_state, ibqp->qp_type,
|
|
attr_mask)) {
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device,
|
|
"Invalid qp transition new_state=%x cur_state=%x "
|
|
"ehca_qp=%p qp_num=%x attr_mask=%x", qp_new_state,
|
|
qp_cur_state, my_qp, ibqp->qp_num, attr_mask);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
if ((mqpcb->qp_state = ib2ehca_qp_state(qp_new_state)))
|
|
update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_STATE, 1);
|
|
else {
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device, "Invalid new qp state=%x "
|
|
"ehca_qp=%p qp_num=%x",
|
|
qp_new_state, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
/* retrieve state transition struct to get req and opt attrs */
|
|
statetrans = get_modqp_statetrans(qp_cur_state, qp_new_state);
|
|
if (statetrans < 0) {
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device, "<INVALID STATE CHANGE> qp_cur_state=%x "
|
|
"new_qp_state=%x State_xsition=%x ehca_qp=%p "
|
|
"qp_num=%x", qp_cur_state, qp_new_state,
|
|
statetrans, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
qp_attr_idx = ib2ehcaqptype(ibqp->qp_type);
|
|
|
|
if (qp_attr_idx < 0) {
|
|
ret = qp_attr_idx;
|
|
ehca_err(ibqp->device,
|
|
"Invalid QP type=%x ehca_qp=%p qp_num=%x",
|
|
ibqp->qp_type, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit1;
|
|
}
|
|
|
|
ehca_dbg(ibqp->device,
|
|
"ehca_qp=%p qp_num=%x <VALID STATE CHANGE> qp_state_xsit=%x",
|
|
my_qp, ibqp->qp_num, statetrans);
|
|
|
|
/* sqe -> rts: set purge bit of bad wqe before actual trans */
|
|
if ((my_qp->qp_type == IB_QPT_UD ||
|
|
my_qp->qp_type == IB_QPT_GSI ||
|
|
my_qp->qp_type == IB_QPT_SMI) &&
|
|
statetrans == IB_QPST_SQE2RTS) {
|
|
/* mark next free wqe if kernel */
|
|
if (!ibqp->uobject) {
|
|
struct ehca_wqe *wqe;
|
|
/* lock send queue */
|
|
spin_lock_irqsave(&my_qp->spinlock_s, spl_flags);
|
|
squeue_locked = 1;
|
|
/* mark next free wqe */
|
|
wqe = (struct ehca_wqe*)
|
|
ipz_qeit_get(&my_qp->ipz_squeue);
|
|
wqe->optype = wqe->wqef = 0xff;
|
|
ehca_dbg(ibqp->device, "qp_num=%x next_free_wqe=%p",
|
|
ibqp->qp_num, wqe);
|
|
}
|
|
ret = prepare_sqe_rts(my_qp, shca, &bad_wqe_cnt);
|
|
if (ret) {
|
|
ehca_err(ibqp->device, "prepare_sqe_rts() failed "
|
|
"ehca_qp=%p qp_num=%x ret=%x",
|
|
my_qp, ibqp->qp_num, ret);
|
|
goto modify_qp_exit2;
|
|
}
|
|
}
|
|
|
|
/*
|
|
* enable RDMA_Atomic_Control if reset->init und reliable con
|
|
* this is necessary since gen2 does not provide that flag,
|
|
* but pHyp requires it
|
|
*/
|
|
if (statetrans == IB_QPST_RESET2INIT &&
|
|
(ibqp->qp_type == IB_QPT_RC || ibqp->qp_type == IB_QPT_UC)) {
|
|
mqpcb->rdma_atomic_ctrl = 3;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RDMA_ATOMIC_CTRL, 1);
|
|
}
|
|
/* circ. pHyp requires #RDMA/Atomic Resp Res for UC INIT -> RTR */
|
|
if (statetrans == IB_QPST_INIT2RTR &&
|
|
(ibqp->qp_type == IB_QPT_UC) &&
|
|
!(attr_mask & IB_QP_MAX_DEST_RD_ATOMIC)) {
|
|
mqpcb->rdma_nr_atomic_resp_res = 1; /* default to 1 */
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_PKEY_INDEX) {
|
|
mqpcb->prim_p_key_idx = attr->pkey_index;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_P_KEY_IDX, 1);
|
|
}
|
|
if (attr_mask & IB_QP_PORT) {
|
|
if (attr->port_num < 1 || attr->port_num > shca->num_ports) {
|
|
ret = -EINVAL;
|
|
ehca_err(ibqp->device, "Invalid port=%x. "
|
|
"ehca_qp=%p qp_num=%x num_ports=%x",
|
|
attr->port_num, my_qp, ibqp->qp_num,
|
|
shca->num_ports);
|
|
goto modify_qp_exit2;
|
|
}
|
|
mqpcb->prim_phys_port = attr->port_num;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PRIM_PHYS_PORT, 1);
|
|
}
|
|
if (attr_mask & IB_QP_QKEY) {
|
|
mqpcb->qkey = attr->qkey;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_QKEY, 1);
|
|
}
|
|
if (attr_mask & IB_QP_AV) {
|
|
int ah_mult = ib_rate_to_mult(attr->ah_attr.static_rate);
|
|
int ehca_mult = ib_rate_to_mult(shca->sport[my_qp->
|
|
init_attr.port_num].rate);
|
|
|
|
mqpcb->dlid = attr->ah_attr.dlid;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID, 1);
|
|
mqpcb->source_path_bits = attr->ah_attr.src_path_bits;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS, 1);
|
|
mqpcb->service_level = attr->ah_attr.sl;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL, 1);
|
|
|
|
if (ah_mult < ehca_mult)
|
|
mqpcb->max_static_rate = (ah_mult > 0) ?
|
|
((ehca_mult - 1) / ah_mult) : 0;
|
|
else
|
|
mqpcb->max_static_rate = 0;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE, 1);
|
|
|
|
/*
|
|
* Always supply the GRH flag, even if it's zero, to give the
|
|
* hypervisor a clear "yes" or "no" instead of a "perhaps"
|
|
*/
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG, 1);
|
|
|
|
/*
|
|
* only if GRH is TRUE we might consider SOURCE_GID_IDX
|
|
* and DEST_GID otherwise phype will return H_ATTR_PARM!!!
|
|
*/
|
|
if (attr->ah_attr.ah_flags == IB_AH_GRH) {
|
|
mqpcb->send_grh_flag = 1;
|
|
|
|
mqpcb->source_gid_idx = attr->ah_attr.grh.sgid_index;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX, 1);
|
|
|
|
for (cnt = 0; cnt < 16; cnt++)
|
|
mqpcb->dest_gid.byte[cnt] =
|
|
attr->ah_attr.grh.dgid.raw[cnt];
|
|
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_GID, 1);
|
|
mqpcb->flow_label = attr->ah_attr.grh.flow_label;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL, 1);
|
|
mqpcb->hop_limit = attr->ah_attr.grh.hop_limit;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT, 1);
|
|
mqpcb->traffic_class = attr->ah_attr.grh.traffic_class;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS, 1);
|
|
}
|
|
}
|
|
|
|
if (attr_mask & IB_QP_PATH_MTU) {
|
|
mqpcb->path_mtu = attr->path_mtu;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_PATH_MTU, 1);
|
|
}
|
|
if (attr_mask & IB_QP_TIMEOUT) {
|
|
mqpcb->timeout = attr->timeout;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_TIMEOUT, 1);
|
|
}
|
|
if (attr_mask & IB_QP_RETRY_CNT) {
|
|
mqpcb->retry_count = attr->retry_cnt;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RETRY_COUNT, 1);
|
|
}
|
|
if (attr_mask & IB_QP_RNR_RETRY) {
|
|
mqpcb->rnr_retry_count = attr->rnr_retry;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RNR_RETRY_COUNT, 1);
|
|
}
|
|
if (attr_mask & IB_QP_RQ_PSN) {
|
|
mqpcb->receive_psn = attr->rq_psn;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_RECEIVE_PSN, 1);
|
|
}
|
|
if (attr_mask & IB_QP_MAX_DEST_RD_ATOMIC) {
|
|
mqpcb->rdma_nr_atomic_resp_res = attr->max_dest_rd_atomic < 3 ?
|
|
attr->max_dest_rd_atomic : 2;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_RDMA_NR_ATOMIC_RESP_RES, 1);
|
|
}
|
|
if (attr_mask & IB_QP_MAX_QP_RD_ATOMIC) {
|
|
mqpcb->rdma_atomic_outst_dest_qp = attr->max_rd_atomic < 3 ?
|
|
attr->max_rd_atomic : 2;
|
|
update_mask |=
|
|
EHCA_BMASK_SET
|
|
(MQPCB_MASK_RDMA_ATOMIC_OUTST_DEST_QP, 1);
|
|
}
|
|
if (attr_mask & IB_QP_ALT_PATH) {
|
|
int ah_mult = ib_rate_to_mult(attr->alt_ah_attr.static_rate);
|
|
int ehca_mult = ib_rate_to_mult(
|
|
shca->sport[my_qp->init_attr.port_num].rate);
|
|
|
|
mqpcb->dlid_al = attr->alt_ah_attr.dlid;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DLID_AL, 1);
|
|
mqpcb->source_path_bits_al = attr->alt_ah_attr.src_path_bits;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_SOURCE_PATH_BITS_AL, 1);
|
|
mqpcb->service_level_al = attr->alt_ah_attr.sl;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SERVICE_LEVEL_AL, 1);
|
|
|
|
if (ah_mult < ehca_mult)
|
|
mqpcb->max_static_rate = (ah_mult > 0) ?
|
|
((ehca_mult - 1) / ah_mult) : 0;
|
|
else
|
|
mqpcb->max_static_rate_al = 0;
|
|
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_MAX_STATIC_RATE_AL, 1);
|
|
|
|
/*
|
|
* only if GRH is TRUE we might consider SOURCE_GID_IDX
|
|
* and DEST_GID otherwise phype will return H_ATTR_PARM!!!
|
|
*/
|
|
if (attr->alt_ah_attr.ah_flags == IB_AH_GRH) {
|
|
mqpcb->send_grh_flag_al = 1 << 31;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_SEND_GRH_FLAG_AL, 1);
|
|
mqpcb->source_gid_idx_al =
|
|
attr->alt_ah_attr.grh.sgid_index;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_SOURCE_GID_IDX_AL, 1);
|
|
|
|
for (cnt = 0; cnt < 16; cnt++)
|
|
mqpcb->dest_gid_al.byte[cnt] =
|
|
attr->alt_ah_attr.grh.dgid.raw[cnt];
|
|
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_DEST_GID_AL, 1);
|
|
mqpcb->flow_label_al = attr->alt_ah_attr.grh.flow_label;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_FLOW_LABEL_AL, 1);
|
|
mqpcb->hop_limit_al = attr->alt_ah_attr.grh.hop_limit;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_HOP_LIMIT_AL, 1);
|
|
mqpcb->traffic_class_al =
|
|
attr->alt_ah_attr.grh.traffic_class;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_TRAFFIC_CLASS_AL, 1);
|
|
}
|
|
}
|
|
|
|
if (attr_mask & IB_QP_MIN_RNR_TIMER) {
|
|
mqpcb->min_rnr_nak_timer_field = attr->min_rnr_timer;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_MIN_RNR_NAK_TIMER_FIELD, 1);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_SQ_PSN) {
|
|
mqpcb->send_psn = attr->sq_psn;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_SEND_PSN, 1);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_DEST_QPN) {
|
|
mqpcb->dest_qp_nr = attr->dest_qp_num;
|
|
update_mask |= EHCA_BMASK_SET(MQPCB_MASK_DEST_QP_NR, 1);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_PATH_MIG_STATE) {
|
|
mqpcb->path_migration_state = attr->path_mig_state;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_PATH_MIGRATION_STATE, 1);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_CAP) {
|
|
mqpcb->max_nr_outst_send_wr = attr->cap.max_send_wr+1;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_SEND_WR, 1);
|
|
mqpcb->max_nr_outst_recv_wr = attr->cap.max_recv_wr+1;
|
|
update_mask |=
|
|
EHCA_BMASK_SET(MQPCB_MASK_MAX_NR_OUTST_RECV_WR, 1);
|
|
/* no support for max_send/recv_sge yet */
|
|
}
|
|
|
|
if (ehca_debug_level)
|
|
ehca_dmp(mqpcb, 4*70, "qp_num=%x", ibqp->qp_num);
|
|
|
|
h_ret = hipz_h_modify_qp(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle,
|
|
&my_qp->pf,
|
|
update_mask,
|
|
mqpcb, my_qp->galpas.kernel);
|
|
|
|
if (h_ret != H_SUCCESS) {
|
|
ret = ehca2ib_return_code(h_ret);
|
|
ehca_err(ibqp->device, "hipz_h_modify_qp() failed rc=%lx "
|
|
"ehca_qp=%p qp_num=%x",h_ret, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit2;
|
|
}
|
|
|
|
if ((my_qp->qp_type == IB_QPT_UD ||
|
|
my_qp->qp_type == IB_QPT_GSI ||
|
|
my_qp->qp_type == IB_QPT_SMI) &&
|
|
statetrans == IB_QPST_SQE2RTS) {
|
|
/* doorbell to reprocessing wqes */
|
|
iosync(); /* serialize GAL register access */
|
|
hipz_update_sqa(my_qp, bad_wqe_cnt-1);
|
|
ehca_gen_dbg("doorbell for %x wqes", bad_wqe_cnt);
|
|
}
|
|
|
|
if (statetrans == IB_QPST_RESET2INIT ||
|
|
statetrans == IB_QPST_INIT2INIT) {
|
|
mqpcb->qp_enable = 1;
|
|
mqpcb->qp_state = EHCA_QPS_INIT;
|
|
update_mask = 0;
|
|
update_mask = EHCA_BMASK_SET(MQPCB_MASK_QP_ENABLE, 1);
|
|
|
|
h_ret = hipz_h_modify_qp(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle,
|
|
&my_qp->pf,
|
|
update_mask,
|
|
mqpcb,
|
|
my_qp->galpas.kernel);
|
|
|
|
if (h_ret != H_SUCCESS) {
|
|
ret = ehca2ib_return_code(h_ret);
|
|
ehca_err(ibqp->device, "ENABLE in context of "
|
|
"RESET_2_INIT failed! Maybe you didn't get "
|
|
"a LID h_ret=%lx ehca_qp=%p qp_num=%x",
|
|
h_ret, my_qp, ibqp->qp_num);
|
|
goto modify_qp_exit2;
|
|
}
|
|
}
|
|
|
|
if (statetrans == IB_QPST_ANY2RESET) {
|
|
ipz_qeit_reset(&my_qp->ipz_rqueue);
|
|
ipz_qeit_reset(&my_qp->ipz_squeue);
|
|
}
|
|
|
|
if (attr_mask & IB_QP_QKEY)
|
|
my_qp->qkey = attr->qkey;
|
|
|
|
modify_qp_exit2:
|
|
if (squeue_locked) { /* this means: sqe -> rts */
|
|
spin_unlock_irqrestore(&my_qp->spinlock_s, spl_flags);
|
|
my_qp->sqerr_purgeflag = 1;
|
|
}
|
|
|
|
modify_qp_exit1:
|
|
ehca_free_fw_ctrlblock(mqpcb);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int ehca_modify_qp(struct ib_qp *ibqp, struct ib_qp_attr *attr, int attr_mask,
|
|
struct ib_udata *udata)
|
|
{
|
|
struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp);
|
|
struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd,
|
|
ib_pd);
|
|
u32 cur_pid = current->tgid;
|
|
|
|
if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context &&
|
|
my_pd->ownpid != cur_pid) {
|
|
ehca_err(ibqp->pd->device, "Invalid caller pid=%x ownpid=%x",
|
|
cur_pid, my_pd->ownpid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
return internal_modify_qp(ibqp, attr, attr_mask, 0);
|
|
}
|
|
|
|
int ehca_query_qp(struct ib_qp *qp,
|
|
struct ib_qp_attr *qp_attr,
|
|
int qp_attr_mask, struct ib_qp_init_attr *qp_init_attr)
|
|
{
|
|
struct ehca_qp *my_qp = container_of(qp, struct ehca_qp, ib_qp);
|
|
struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd,
|
|
ib_pd);
|
|
struct ehca_shca *shca = container_of(qp->device, struct ehca_shca,
|
|
ib_device);
|
|
struct ipz_adapter_handle adapter_handle = shca->ipz_hca_handle;
|
|
struct hcp_modify_qp_control_block *qpcb;
|
|
u32 cur_pid = current->tgid;
|
|
int cnt, ret = 0;
|
|
u64 h_ret;
|
|
|
|
if (my_pd->ib_pd.uobject && my_pd->ib_pd.uobject->context &&
|
|
my_pd->ownpid != cur_pid) {
|
|
ehca_err(qp->device, "Invalid caller pid=%x ownpid=%x",
|
|
cur_pid, my_pd->ownpid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (qp_attr_mask & QP_ATTR_QUERY_NOT_SUPPORTED) {
|
|
ehca_err(qp->device,"Invalid attribute mask "
|
|
"ehca_qp=%p qp_num=%x qp_attr_mask=%x ",
|
|
my_qp, qp->qp_num, qp_attr_mask);
|
|
return -EINVAL;
|
|
}
|
|
|
|
qpcb = ehca_alloc_fw_ctrlblock(GFP_KERNEL);
|
|
if (!qpcb) {
|
|
ehca_err(qp->device,"Out of memory for qpcb "
|
|
"ehca_qp=%p qp_num=%x", my_qp, qp->qp_num);
|
|
return -ENOMEM;
|
|
}
|
|
|
|
h_ret = hipz_h_query_qp(adapter_handle,
|
|
my_qp->ipz_qp_handle,
|
|
&my_qp->pf,
|
|
qpcb, my_qp->galpas.kernel);
|
|
|
|
if (h_ret != H_SUCCESS) {
|
|
ret = ehca2ib_return_code(h_ret);
|
|
ehca_err(qp->device,"hipz_h_query_qp() failed "
|
|
"ehca_qp=%p qp_num=%x h_ret=%lx",
|
|
my_qp, qp->qp_num, h_ret);
|
|
goto query_qp_exit1;
|
|
}
|
|
|
|
qp_attr->cur_qp_state = ehca2ib_qp_state(qpcb->qp_state);
|
|
qp_attr->qp_state = qp_attr->cur_qp_state;
|
|
|
|
if (qp_attr->cur_qp_state == -EINVAL) {
|
|
ret = -EINVAL;
|
|
ehca_err(qp->device,"Got invalid ehca_qp_state=%x "
|
|
"ehca_qp=%p qp_num=%x",
|
|
qpcb->qp_state, my_qp, qp->qp_num);
|
|
goto query_qp_exit1;
|
|
}
|
|
|
|
if (qp_attr->qp_state == IB_QPS_SQD)
|
|
qp_attr->sq_draining = 1;
|
|
|
|
qp_attr->qkey = qpcb->qkey;
|
|
qp_attr->path_mtu = qpcb->path_mtu;
|
|
qp_attr->path_mig_state = qpcb->path_migration_state;
|
|
qp_attr->rq_psn = qpcb->receive_psn;
|
|
qp_attr->sq_psn = qpcb->send_psn;
|
|
qp_attr->min_rnr_timer = qpcb->min_rnr_nak_timer_field;
|
|
qp_attr->cap.max_send_wr = qpcb->max_nr_outst_send_wr-1;
|
|
qp_attr->cap.max_recv_wr = qpcb->max_nr_outst_recv_wr-1;
|
|
/* UD_AV CIRCUMVENTION */
|
|
if (my_qp->qp_type == IB_QPT_UD) {
|
|
qp_attr->cap.max_send_sge =
|
|
qpcb->actual_nr_sges_in_sq_wqe - 2;
|
|
qp_attr->cap.max_recv_sge =
|
|
qpcb->actual_nr_sges_in_rq_wqe - 2;
|
|
} else {
|
|
qp_attr->cap.max_send_sge =
|
|
qpcb->actual_nr_sges_in_sq_wqe;
|
|
qp_attr->cap.max_recv_sge =
|
|
qpcb->actual_nr_sges_in_rq_wqe;
|
|
}
|
|
|
|
qp_attr->cap.max_inline_data = my_qp->sq_max_inline_data_size;
|
|
qp_attr->dest_qp_num = qpcb->dest_qp_nr;
|
|
|
|
qp_attr->pkey_index =
|
|
EHCA_BMASK_GET(MQPCB_PRIM_P_KEY_IDX, qpcb->prim_p_key_idx);
|
|
|
|
qp_attr->port_num =
|
|
EHCA_BMASK_GET(MQPCB_PRIM_PHYS_PORT, qpcb->prim_phys_port);
|
|
|
|
qp_attr->timeout = qpcb->timeout;
|
|
qp_attr->retry_cnt = qpcb->retry_count;
|
|
qp_attr->rnr_retry = qpcb->rnr_retry_count;
|
|
|
|
qp_attr->alt_pkey_index =
|
|
EHCA_BMASK_GET(MQPCB_PRIM_P_KEY_IDX, qpcb->alt_p_key_idx);
|
|
|
|
qp_attr->alt_port_num = qpcb->alt_phys_port;
|
|
qp_attr->alt_timeout = qpcb->timeout_al;
|
|
|
|
/* primary av */
|
|
qp_attr->ah_attr.sl = qpcb->service_level;
|
|
|
|
if (qpcb->send_grh_flag) {
|
|
qp_attr->ah_attr.ah_flags = IB_AH_GRH;
|
|
}
|
|
|
|
qp_attr->ah_attr.static_rate = qpcb->max_static_rate;
|
|
qp_attr->ah_attr.dlid = qpcb->dlid;
|
|
qp_attr->ah_attr.src_path_bits = qpcb->source_path_bits;
|
|
qp_attr->ah_attr.port_num = qp_attr->port_num;
|
|
|
|
/* primary GRH */
|
|
qp_attr->ah_attr.grh.traffic_class = qpcb->traffic_class;
|
|
qp_attr->ah_attr.grh.hop_limit = qpcb->hop_limit;
|
|
qp_attr->ah_attr.grh.sgid_index = qpcb->source_gid_idx;
|
|
qp_attr->ah_attr.grh.flow_label = qpcb->flow_label;
|
|
|
|
for (cnt = 0; cnt < 16; cnt++)
|
|
qp_attr->ah_attr.grh.dgid.raw[cnt] =
|
|
qpcb->dest_gid.byte[cnt];
|
|
|
|
/* alternate AV */
|
|
qp_attr->alt_ah_attr.sl = qpcb->service_level_al;
|
|
if (qpcb->send_grh_flag_al) {
|
|
qp_attr->alt_ah_attr.ah_flags = IB_AH_GRH;
|
|
}
|
|
|
|
qp_attr->alt_ah_attr.static_rate = qpcb->max_static_rate_al;
|
|
qp_attr->alt_ah_attr.dlid = qpcb->dlid_al;
|
|
qp_attr->alt_ah_attr.src_path_bits = qpcb->source_path_bits_al;
|
|
|
|
/* alternate GRH */
|
|
qp_attr->alt_ah_attr.grh.traffic_class = qpcb->traffic_class_al;
|
|
qp_attr->alt_ah_attr.grh.hop_limit = qpcb->hop_limit_al;
|
|
qp_attr->alt_ah_attr.grh.sgid_index = qpcb->source_gid_idx_al;
|
|
qp_attr->alt_ah_attr.grh.flow_label = qpcb->flow_label_al;
|
|
|
|
for (cnt = 0; cnt < 16; cnt++)
|
|
qp_attr->alt_ah_attr.grh.dgid.raw[cnt] =
|
|
qpcb->dest_gid_al.byte[cnt];
|
|
|
|
/* return init attributes given in ehca_create_qp */
|
|
if (qp_init_attr)
|
|
*qp_init_attr = my_qp->init_attr;
|
|
|
|
if (ehca_debug_level)
|
|
ehca_dmp(qpcb, 4*70, "qp_num=%x", qp->qp_num);
|
|
|
|
query_qp_exit1:
|
|
ehca_free_fw_ctrlblock(qpcb);
|
|
|
|
return ret;
|
|
}
|
|
|
|
int ehca_destroy_qp(struct ib_qp *ibqp)
|
|
{
|
|
struct ehca_qp *my_qp = container_of(ibqp, struct ehca_qp, ib_qp);
|
|
struct ehca_shca *shca = container_of(ibqp->device, struct ehca_shca,
|
|
ib_device);
|
|
struct ehca_pd *my_pd = container_of(my_qp->ib_qp.pd, struct ehca_pd,
|
|
ib_pd);
|
|
u32 cur_pid = current->tgid;
|
|
u32 qp_num = ibqp->qp_num;
|
|
int ret;
|
|
u64 h_ret;
|
|
u8 port_num;
|
|
enum ib_qp_type qp_type;
|
|
unsigned long flags;
|
|
|
|
if (ibqp->uobject) {
|
|
if (my_qp->mm_count_galpa ||
|
|
my_qp->mm_count_rqueue || my_qp->mm_count_squeue) {
|
|
ehca_err(ibqp->device, "Resources still referenced in "
|
|
"user space qp_num=%x", ibqp->qp_num);
|
|
return -EINVAL;
|
|
}
|
|
if (my_pd->ownpid != cur_pid) {
|
|
ehca_err(ibqp->device, "Invalid caller pid=%x ownpid=%x",
|
|
cur_pid, my_pd->ownpid);
|
|
return -EINVAL;
|
|
}
|
|
}
|
|
|
|
if (my_qp->send_cq) {
|
|
ret = ehca_cq_unassign_qp(my_qp->send_cq,
|
|
my_qp->real_qp_num);
|
|
if (ret) {
|
|
ehca_err(ibqp->device, "Couldn't unassign qp from "
|
|
"send_cq ret=%x qp_num=%x cq_num=%x", ret,
|
|
my_qp->ib_qp.qp_num, my_qp->send_cq->cq_number);
|
|
return ret;
|
|
}
|
|
}
|
|
|
|
spin_lock_irqsave(&ehca_qp_idr_lock, flags);
|
|
idr_remove(&ehca_qp_idr, my_qp->token);
|
|
spin_unlock_irqrestore(&ehca_qp_idr_lock, flags);
|
|
|
|
h_ret = hipz_h_destroy_qp(shca->ipz_hca_handle, my_qp);
|
|
if (h_ret != H_SUCCESS) {
|
|
ehca_err(ibqp->device, "hipz_h_destroy_qp() failed rc=%lx "
|
|
"ehca_qp=%p qp_num=%x", h_ret, my_qp, qp_num);
|
|
return ehca2ib_return_code(h_ret);
|
|
}
|
|
|
|
port_num = my_qp->init_attr.port_num;
|
|
qp_type = my_qp->init_attr.qp_type;
|
|
|
|
/* no support for IB_QPT_SMI yet */
|
|
if (qp_type == IB_QPT_GSI) {
|
|
struct ib_event event;
|
|
ehca_info(ibqp->device, "device %s: port %x is inactive.",
|
|
shca->ib_device.name, port_num);
|
|
event.device = &shca->ib_device;
|
|
event.event = IB_EVENT_PORT_ERR;
|
|
event.element.port_num = port_num;
|
|
shca->sport[port_num - 1].port_state = IB_PORT_DOWN;
|
|
ib_dispatch_event(&event);
|
|
}
|
|
|
|
ipz_queue_dtor(&my_qp->ipz_rqueue);
|
|
ipz_queue_dtor(&my_qp->ipz_squeue);
|
|
kmem_cache_free(qp_cache, my_qp);
|
|
return 0;
|
|
}
|
|
|
|
int ehca_init_qp_cache(void)
|
|
{
|
|
qp_cache = kmem_cache_create("ehca_cache_qp",
|
|
sizeof(struct ehca_qp), 0,
|
|
SLAB_HWCACHE_ALIGN,
|
|
NULL, NULL);
|
|
if (!qp_cache)
|
|
return -ENOMEM;
|
|
return 0;
|
|
}
|
|
|
|
void ehca_cleanup_qp_cache(void)
|
|
{
|
|
if (qp_cache)
|
|
kmem_cache_destroy(qp_cache);
|
|
}
|