fab97220c9
Add a driver for IBM GX bus InfiniBand adapters, which are usable with some pSeries/System p systems. Signed-off-by: Heiko J Schick <schickhj.ibm.com> Signed-off-by: Roland Dreier <rolandd@cisco.com>
132 lines
4.5 KiB
C
132 lines
4.5 KiB
C
/*
|
|
* IBM eServer eHCA Infiniband device driver for Linux on POWER
|
|
*
|
|
* mcast functions
|
|
*
|
|
* Authors: Khadija Souissi <souissik@de.ibm.com>
|
|
* Waleri Fomin <fomin@de.ibm.com>
|
|
* Reinhard Ernst <rernst@de.ibm.com>
|
|
* Hoang-Nam Nguyen <hnguyen@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"
|
|
|
|
#define MAX_MC_LID 0xFFFE
|
|
#define MIN_MC_LID 0xC000 /* Multicast limits */
|
|
#define EHCA_VALID_MULTICAST_GID(gid) ((gid)[0] == 0xFF)
|
|
#define EHCA_VALID_MULTICAST_LID(lid) \
|
|
(((lid) >= MIN_MC_LID) && ((lid) <= MAX_MC_LID))
|
|
|
|
int ehca_attach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
|
|
{
|
|
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);
|
|
union ib_gid my_gid;
|
|
u64 subnet_prefix, interface_id, h_ret;
|
|
|
|
if (ibqp->qp_type != IB_QPT_UD) {
|
|
ehca_err(ibqp->device, "invalid qp_type=%x", ibqp->qp_type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) {
|
|
ehca_err(ibqp->device, "invalid mulitcast gid");
|
|
return -EINVAL;
|
|
} else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) {
|
|
ehca_err(ibqp->device, "invalid mulitcast lid=%x", lid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid));
|
|
|
|
subnet_prefix = be64_to_cpu(my_gid.global.subnet_prefix);
|
|
interface_id = be64_to_cpu(my_gid.global.interface_id);
|
|
h_ret = hipz_h_attach_mcqp(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle,
|
|
my_qp->galpas.kernel,
|
|
lid, subnet_prefix, interface_id);
|
|
if (h_ret != H_SUCCESS)
|
|
ehca_err(ibqp->device,
|
|
"ehca_qp=%p qp_num=%x hipz_h_attach_mcqp() failed "
|
|
"h_ret=%lx", my_qp, ibqp->qp_num, h_ret);
|
|
|
|
return ehca2ib_return_code(h_ret);
|
|
}
|
|
|
|
int ehca_detach_mcast(struct ib_qp *ibqp, union ib_gid *gid, u16 lid)
|
|
{
|
|
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);
|
|
union ib_gid my_gid;
|
|
u64 subnet_prefix, interface_id, h_ret;
|
|
|
|
if (ibqp->qp_type != IB_QPT_UD) {
|
|
ehca_err(ibqp->device, "invalid qp_type %x", ibqp->qp_type);
|
|
return -EINVAL;
|
|
}
|
|
|
|
if (!(EHCA_VALID_MULTICAST_GID(gid->raw))) {
|
|
ehca_err(ibqp->device, "invalid mulitcast gid");
|
|
return -EINVAL;
|
|
} else if ((lid < MIN_MC_LID) || (lid > MAX_MC_LID)) {
|
|
ehca_err(ibqp->device, "invalid mulitcast lid=%x", lid);
|
|
return -EINVAL;
|
|
}
|
|
|
|
memcpy(&my_gid.raw, gid->raw, sizeof(union ib_gid));
|
|
|
|
subnet_prefix = be64_to_cpu(my_gid.global.subnet_prefix);
|
|
interface_id = be64_to_cpu(my_gid.global.interface_id);
|
|
h_ret = hipz_h_detach_mcqp(shca->ipz_hca_handle,
|
|
my_qp->ipz_qp_handle,
|
|
my_qp->galpas.kernel,
|
|
lid, subnet_prefix, interface_id);
|
|
if (h_ret != H_SUCCESS)
|
|
ehca_err(ibqp->device,
|
|
"ehca_qp=%p qp_num=%x hipz_h_detach_mcqp() failed "
|
|
"h_ret=%lx", my_qp, ibqp->qp_num, h_ret);
|
|
|
|
return ehca2ib_return_code(h_ret);
|
|
}
|