238 lines
6.9 KiB
C
238 lines
6.9 KiB
C
|
/*
|
||
|
|
* 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 <rdma/ib_mad.h>
|
||
|
|
|
||
|
|
#include "ehca_classes.h"
|
||
|
|
#include "ehca_tools.h"
|
||
|
|
#include "ehca_iverbs.h"
|
||
|
|
#include "hcp_if.h"
|
||
|
|
|
||
|
|
#define IB_MAD_STATUS_REDIRECT cpu_to_be16(0x0002)
|
||
|
|
#define IB_MAD_STATUS_UNSUP_VERSION cpu_to_be16(0x0004)
|
||
|
|
#define IB_MAD_STATUS_UNSUP_METHOD cpu_to_be16(0x0008)
|
||
|
|
|
||
|
|
#define IB_PMA_CLASS_PORT_INFO cpu_to_be16(0x0001)
|
||
|
|
|
||
|
|
/**
|
||
|
|
* 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. h_ret=%lli",
|
||
|
|
port, ret);
|
||
|
|
return ret;
|
||
|
|
}
|
||
|
|
shca->sport[port - 1].pma_qp_nr = pma_qp_nr;
|
||
|
|
ehca_dbg(&shca->ib_device, "port=%x pma_qp_nr=%x",
|
||
|
|
port, pma_qp_nr);
|
||
|
|
break;
|
||
|
|
default:
|
||
|
|
ehca_err(&shca->ib_device, "invalid qp_type=%x",
|
||
|
|
qp_init_attr->qp_type);
|
||
|
|
return H_PARAMETER;
|
||
|
|
}
|
||
|
|
|
||
|
|
if (ehca_nr_ports < 0) /* autodetect mode */
|
||
|
|
return H_SUCCESS;
|
||
|
|
|
||
|
|
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;
|
||
|
|
}
|
||
|
|
|
||
|
|
struct ib_perf {
|
||
|
|
struct ib_mad_hdr mad_hdr;
|
||
|
|
u8 reserved[40];
|
||
|
|
u8 data[192];
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
/* TC/SL/FL packed into 32 bits, as in ClassPortInfo */
|
||
|
|
struct tcslfl {
|
||
|
|
u32 tc:8;
|
||
|
|
u32 sl:4;
|
||
|
|
u32 fl:20;
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
/* IP Version/TC/FL packed into 32 bits, as in GRH */
|
||
|
|
struct vertcfl {
|
||
|
|
u32 ver:4;
|
||
|
|
u32 tc:8;
|
||
|
|
u32 fl:20;
|
||
|
|
} __attribute__ ((packed));
|
||
|
|
|
||
|
|
static int ehca_process_perf(struct ib_device *ibdev, u8 port_num,
|
||
|
|
struct ib_wc *in_wc, struct ib_grh *in_grh,
|
||
|
|
struct ib_mad *in_mad, struct ib_mad *out_mad)
|
||
|
|
{
|
||
|
|
struct ib_perf *in_perf = (struct ib_perf *)in_mad;
|
||
|
|
struct ib_perf *out_perf = (struct ib_perf *)out_mad;
|
||
|
|
struct ib_class_port_info *poi =
|
||
|
|
(struct ib_class_port_info *)out_perf->data;
|
||
|
|
struct tcslfl *tcslfl =
|
||
|
|
(struct tcslfl *)&poi->redirect_tcslfl;
|
||
|
|
struct ehca_shca *shca =
|
||
|
|
container_of(ibdev, struct ehca_shca, ib_device);
|
||
|
|
struct ehca_sport *sport = &shca->sport[port_num - 1];
|
||
|
|
|
||
|
|
ehca_dbg(ibdev, "method=%x", in_perf->mad_hdr.method);
|
||
|
|
|
||
|
|
*out_mad = *in_mad;
|
||
|
|
|
||
|
|
if (in_perf->mad_hdr.class_version != 1) {
|
||
|
|
ehca_warn(ibdev, "Unsupported class_version=%x",
|
||
|
|
in_perf->mad_hdr.class_version);
|
||
|
|
out_perf->mad_hdr.status = IB_MAD_STATUS_UNSUP_VERSION;
|
||
|
|
goto perf_reply;
|
||
|
|
}
|
||
|
|
|
||
|
|
switch (in_perf->mad_hdr.method) {
|
||
|
|
case IB_MGMT_METHOD_GET:
|
||
|
|
case IB_MGMT_METHOD_SET:
|
||
|
|
/* set class port info for redirection */
|
||
|
|
out_perf->mad_hdr.attr_id = IB_PMA_CLASS_PORT_INFO;
|
||
|
|
out_perf->mad_hdr.status = IB_MAD_STATUS_REDIRECT;
|
||
|
|
memset(poi, 0, sizeof(*poi));
|
||
|
|
poi->base_version = 1;
|
||
|
|
poi->class_version = 1;
|
||
|
|
poi->resp_time_value = 18;
|
||
|
|
|
||
|
|
/* copy local routing information from WC where applicable */
|
||
|
|
tcslfl->sl = in_wc->sl;
|
||
|
|
poi->redirect_lid =
|
||
|
|
sport->saved_attr.lid | in_wc->dlid_path_bits;
|
||
|
|
poi->redirect_qp = sport->pma_qp_nr;
|
||
|
|
poi->redirect_qkey = IB_QP1_QKEY;
|
||
|
|
|
||
|
|
ehca_query_pkey(ibdev, port_num, in_wc->pkey_index,
|
||
|
|
&poi->redirect_pkey);
|
||
|
|
|
||
|
|
/* if request was globally routed, copy route info */
|
||
|
|
if (in_grh) {
|
||
|
|
struct vertcfl *vertcfl =
|
||
|
|
(struct vertcfl *)&in_grh->version_tclass_flow;
|
||
|
|
memcpy(poi->redirect_gid, in_grh->dgid.raw,
|
||
|
|
sizeof(poi->redirect_gid));
|
||
|
|
tcslfl->tc = vertcfl->tc;
|
||
|
|
tcslfl->fl = vertcfl->fl;
|
||
|
|
} else
|
||
|
|
/* else only fill in default GID */
|
||
|
|
ehca_query_gid(ibdev, port_num, 0,
|
||
|
|
(union ib_gid *)&poi->redirect_gid);
|
||
|
|
|
||
|
|
ehca_dbg(ibdev, "ehca_pma_lid=%x ehca_pma_qp=%x",
|
||
|
|
sport->saved_attr.lid, sport->pma_qp_nr);
|
||
|
|
break;
|
||
|
|
|
||
|
|
case IB_MGMT_METHOD_GET_RESP:
|
||
|
|
return IB_MAD_RESULT_FAILURE;
|
||
|
|
|
||
|
|
default:
|
||
|
|
out_perf->mad_hdr.status = IB_MAD_STATUS_UNSUP_METHOD;
|
||
|
|
break;
|
||
|
|
}
|
||
|
|
|
||
|
|
perf_reply:
|
||
|
|
out_perf->mad_hdr.method = IB_MGMT_METHOD_GET_RESP;
|
||
|
|
|
||
|
|
return IB_MAD_RESULT_SUCCESS | IB_MAD_RESULT_REPLY;
|
||
|
|
}
|
||
|
|
|
||
|
|
int ehca_process_mad(struct ib_device *ibdev, int mad_flags, u8 port_num,
|
||
|
|
struct ib_wc *in_wc, struct ib_grh *in_grh,
|
||
|
|
struct ib_mad *in_mad, struct ib_mad *out_mad)
|
||
|
|
{
|
||
|
|
int ret;
|
||
|
|
|
||
|
|
if (!port_num || port_num > ibdev->phys_port_cnt || !in_wc)
|
||
|
|
return IB_MAD_RESULT_FAILURE;
|
||
|
|
|
||
|
|
/* accept only pma request */
|
||
|
|
if (in_mad->mad_hdr.mgmt_class != IB_MGMT_CLASS_PERF_MGMT)
|
||
|
|
return IB_MAD_RESULT_SUCCESS;
|
||
|
|
|
||
|
|
ehca_dbg(ibdev, "port_num=%x src_qp=%x", port_num, in_wc->src_qp);
|
||
|
|
ret = ehca_process_perf(ibdev, port_num, in_wc, in_grh,
|
||
|
|
in_mad, out_mad);
|
||
|
|
|
||
|
|
return ret;
|
||
|
|
}
|