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/* SPDX-License-Identifier: GPL-2.0 OR Linux-OpenIB */
/*
* Copyright (c) 2004 Topspin Communications. All rights reserved.
* Copyright (c) 2005 Voltaire, Inc. All rights reserved.
* Copyright (c) 2006 Intel Corporation. All rights reserved.
*/
#ifndef IB_SA_H
#define IB_SA_H
#include <linux/completion.h>
#include <linux/compiler.h>
#include <linux/atomic.h>
#include <linux/netdevice.h>
#include <rdma/ib_verbs.h>
#include <rdma/ib_mad.h>
#include <rdma/ib_addr.h>
#include <rdma/opa_addr.h>
enum {
IB_SA_CLASS_VERSION = 2, /* IB spec version 1.1/1.2 */
IB_SA_METHOD_GET_TABLE = 0x12,
IB_SA_METHOD_GET_TABLE_RESP = 0x92,
IB_SA_METHOD_DELETE = 0x15,
IB_SA_METHOD_DELETE_RESP = 0x95,
IB_SA_METHOD_GET_MULTI = 0x14,
IB_SA_METHOD_GET_MULTI_RESP = 0x94,
IB_SA_METHOD_GET_TRACE_TBL = 0x13
};
#define OPA_SA_CLASS_VERSION 0x80
enum {
IB_SA_ATTR_CLASS_PORTINFO = 0x01,
IB_SA_ATTR_NOTICE = 0x02,
IB_SA_ATTR_INFORM_INFO = 0x03,
IB_SA_ATTR_NODE_REC = 0x11,
IB_SA_ATTR_PORT_INFO_REC = 0x12,
IB_SA_ATTR_SL2VL_REC = 0x13,
IB_SA_ATTR_SWITCH_REC = 0x14,
IB_SA_ATTR_LINEAR_FDB_REC = 0x15,
IB_SA_ATTR_RANDOM_FDB_REC = 0x16,
IB_SA_ATTR_MCAST_FDB_REC = 0x17,
IB_SA_ATTR_SM_INFO_REC = 0x18,
IB_SA_ATTR_LINK_REC = 0x20,
IB_SA_ATTR_GUID_INFO_REC = 0x30,
IB_SA_ATTR_SERVICE_REC = 0x31,
IB_SA_ATTR_PARTITION_REC = 0x33,
IB_SA_ATTR_PATH_REC = 0x35,
IB_SA_ATTR_VL_ARB_REC = 0x36,
IB_SA_ATTR_MC_MEMBER_REC = 0x38,
IB_SA_ATTR_TRACE_REC = 0x39,
IB_SA_ATTR_MULTI_PATH_REC = 0x3a,
IB_SA_ATTR_SERVICE_ASSOC_REC = 0x3b,
IB_SA_ATTR_INFORM_INFO_REC = 0xf3
};
enum ib_sa_selector {
IB_SA_GT = 0,
IB_SA_LT = 1,
IB_SA_EQ = 2,
/*
* The meaning of "best" depends on the attribute: for
* example, for MTU best will return the largest available
* MTU, while for packet life time, best will return the
* smallest available life time.
*/
IB_SA_BEST = 3
};
/*
* There are 4 types of join states:
* FullMember, NonMember, SendOnlyNonMember, SendOnlyFullMember.
* The order corresponds to JoinState bits in MCMemberRecord.
*/
enum ib_sa_mc_join_states {
FULLMEMBER_JOIN,
NONMEMBER_JOIN,
SENDONLY_NONMEBER_JOIN,
SENDONLY_FULLMEMBER_JOIN,
NUM_JOIN_MEMBERSHIP_TYPES,
};
#define IB_SA_CAP_MASK2_SENDONLY_FULL_MEM_SUPPORT BIT(12)
/*
* Structures for SA records are named "struct ib_sa_xxx_rec." No
* attempt is made to pack structures to match the physical layout of
* SA records in SA MADs; all packing and unpacking is handled by the
* SA query code.
*
* For a record with structure ib_sa_xxx_rec, the naming convention
* for the component mask value for field yyy is IB_SA_XXX_REC_YYY (we
* never use different abbreviations or otherwise change the spelling
* of xxx/yyy between ib_sa_xxx_rec.yyy and IB_SA_XXX_REC_YYY).
*
* Reserved rows are indicated with comments to help maintainability.
*/
#define IB_SA_PATH_REC_SERVICE_ID (IB_SA_COMP_MASK( 0) |\
IB_SA_COMP_MASK( 1))
#define IB_SA_PATH_REC_DGID IB_SA_COMP_MASK( 2)
#define IB_SA_PATH_REC_SGID IB_SA_COMP_MASK( 3)
#define IB_SA_PATH_REC_DLID IB_SA_COMP_MASK( 4)
#define IB_SA_PATH_REC_SLID IB_SA_COMP_MASK( 5)
#define IB_SA_PATH_REC_RAW_TRAFFIC IB_SA_COMP_MASK( 6)
/* reserved: 7 */
#define IB_SA_PATH_REC_FLOW_LABEL IB_SA_COMP_MASK( 8)
#define IB_SA_PATH_REC_HOP_LIMIT IB_SA_COMP_MASK( 9)
#define IB_SA_PATH_REC_TRAFFIC_CLASS IB_SA_COMP_MASK(10)
#define IB_SA_PATH_REC_REVERSIBLE IB_SA_COMP_MASK(11)
#define IB_SA_PATH_REC_NUMB_PATH IB_SA_COMP_MASK(12)
#define IB_SA_PATH_REC_PKEY IB_SA_COMP_MASK(13)
#define IB_SA_PATH_REC_QOS_CLASS IB_SA_COMP_MASK(14)
#define IB_SA_PATH_REC_SL IB_SA_COMP_MASK(15)
#define IB_SA_PATH_REC_MTU_SELECTOR IB_SA_COMP_MASK(16)
#define IB_SA_PATH_REC_MTU IB_SA_COMP_MASK(17)
#define IB_SA_PATH_REC_RATE_SELECTOR IB_SA_COMP_MASK(18)
#define IB_SA_PATH_REC_RATE IB_SA_COMP_MASK(19)
#define IB_SA_PATH_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(20)
#define IB_SA_PATH_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(21)
#define IB_SA_PATH_REC_PREFERENCE IB_SA_COMP_MASK(22)
enum sa_path_rec_type {
SA_PATH_REC_TYPE_IB,
SA_PATH_REC_TYPE_ROCE_V1,
SA_PATH_REC_TYPE_ROCE_V2,
SA_PATH_REC_TYPE_OPA
};
struct sa_path_rec_ib {
__be16 dlid;
__be16 slid;
u8 raw_traffic;
};
/**
* struct sa_path_rec_roce - RoCE specific portion of the path record entry
* @route_resolved: When set, it indicates that this route is already
* resolved for this path record entry.
* @dmac: Destination mac address for the given DGID entry
* of the path record entry.
*/
struct sa_path_rec_roce {
bool route_resolved;
u8 dmac[ETH_ALEN];
};
struct sa_path_rec_opa {
__be32 dlid;
__be32 slid;
u8 raw_traffic;
u8 l2_8B;
u8 l2_10B;
u8 l2_9B;
u8 l2_16B;
u8 qos_type;
u8 qos_priority;
};
struct sa_path_rec {
union ib_gid dgid;
union ib_gid sgid;
__be64 service_id;
/* reserved */
__be32 flow_label;
u8 hop_limit;
u8 traffic_class;
u8 reversible;
u8 numb_path;
__be16 pkey;
__be16 qos_class;
u8 sl;
u8 mtu_selector;
u8 mtu;
u8 rate_selector;
u8 rate;
u8 packet_life_time_selector;
u8 packet_life_time;
u8 preference;
union {
struct sa_path_rec_ib ib;
struct sa_path_rec_roce roce;
struct sa_path_rec_opa opa;
};
enum sa_path_rec_type rec_type;
};
static inline enum ib_gid_type
sa_conv_pathrec_to_gid_type(struct sa_path_rec *rec)
{
switch (rec->rec_type) {
case SA_PATH_REC_TYPE_ROCE_V1:
return IB_GID_TYPE_ROCE;
case SA_PATH_REC_TYPE_ROCE_V2:
return IB_GID_TYPE_ROCE_UDP_ENCAP;
default:
return IB_GID_TYPE_IB;
}
}
static inline enum sa_path_rec_type
sa_conv_gid_to_pathrec_type(enum ib_gid_type type)
{
switch (type) {
case IB_GID_TYPE_ROCE:
return SA_PATH_REC_TYPE_ROCE_V1;
case IB_GID_TYPE_ROCE_UDP_ENCAP:
return SA_PATH_REC_TYPE_ROCE_V2;
default:
return SA_PATH_REC_TYPE_IB;
}
}
static inline void path_conv_opa_to_ib(struct sa_path_rec *ib,
struct sa_path_rec *opa)
{
if ((be32_to_cpu(opa->opa.dlid) >=
be16_to_cpu(IB_MULTICAST_LID_BASE)) ||
(be32_to_cpu(opa->opa.slid) >=
be16_to_cpu(IB_MULTICAST_LID_BASE))) {
/* Create OPA GID and zero out the LID */
ib->dgid.global.interface_id
= OPA_MAKE_ID(be32_to_cpu(opa->opa.dlid));
ib->dgid.global.subnet_prefix
= opa->dgid.global.subnet_prefix;
ib->sgid.global.interface_id
= OPA_MAKE_ID(be32_to_cpu(opa->opa.slid));
ib->dgid.global.subnet_prefix
= opa->dgid.global.subnet_prefix;
ib->ib.dlid = 0;
ib->ib.slid = 0;
} else {
ib->ib.dlid = htons(ntohl(opa->opa.dlid));
ib->ib.slid = htons(ntohl(opa->opa.slid));
}
ib->service_id = opa->service_id;
ib->ib.raw_traffic = opa->opa.raw_traffic;
}
static inline void path_conv_ib_to_opa(struct sa_path_rec *opa,
struct sa_path_rec *ib)
{
__be32 slid, dlid;
if ((ib_is_opa_gid(&ib->sgid)) ||
(ib_is_opa_gid(&ib->dgid))) {
slid = htonl(opa_get_lid_from_gid(&ib->sgid));
dlid = htonl(opa_get_lid_from_gid(&ib->dgid));
} else {
slid = htonl(ntohs(ib->ib.slid));
dlid = htonl(ntohs(ib->ib.dlid));
}
opa->opa.slid = slid;
opa->opa.dlid = dlid;
opa->service_id = ib->service_id;
opa->opa.raw_traffic = ib->ib.raw_traffic;
}
/* Convert from OPA to IB path record */
static inline void sa_convert_path_opa_to_ib(struct sa_path_rec *dest,
struct sa_path_rec *src)
{
if (src->rec_type != SA_PATH_REC_TYPE_OPA)
return;
*dest = *src;
dest->rec_type = SA_PATH_REC_TYPE_IB;
path_conv_opa_to_ib
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