1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
|
/*
* 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, 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=%lli", 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, 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=%lli", my_qp, ibqp->qp_num, h_ret);
return ehca2ib_return_code(h_ret);
}
|
