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linux-next/include/rdma/ib_sa.h
Christoph Lameter 633d610212 RDMA/ipoib: Remove racy Subnet Manager sendonly join checks 
When a system receives a REREG event from the SM, then the SM information
in the kernel is marked as invalid and a request is sent to the SM to
update the information. The SM information is invalid in that time period.

However, receiving a REREG also occurs simultaneously in user space
applications that are now trying to rejoin the multicast groups. Some of
those may be sendonly multicast groups which are then failing.

If the SM information is invalid then ib_sa_sendonly_fullmem_support()
returns false. That is wrong because it just means that we do not know yet
if the potentially new SM supports sendonly joins.

Sendonly join was introduced in 2015 and all the Subnet managers have
supported it ever since. So there is no point in checking if a subnet
manager supports it.

Should an old opensm get a request for a sendonly join then the request
will fail. The code that is removed here accomodated that situation and
fell back to a full join.

Falling back to a full join is problematic in itself. The reason to use
the sendonly join was to reduce the traffic on the Infiniband fabric
otherwise one could have just stayed with the regular join.  So this patch
may cause users of very old opensms to discover that lots of traffic
needlessly crosses their IB fabrics.

Link: https://lore.kernel.org/r/alpine.DEB.2.22.394.2101281845160.13303@www.lameter.com
Signed-off-by: Christoph Lameter <cl@linux.com>
Signed-off-by: Jason Gunthorpe <jgg@nvidia.com>
2021-02-16 14:42:58 -04:00

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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(dest, src);
}
/* Convert from IB to OPA path record */
static inline void sa_convert_path_ib_to_opa(struct sa_path_rec *dest,
struct sa_path_rec *src)
{
if (src->rec_type != SA_PATH_REC_TYPE_IB)
return;
/* Do a structure copy and overwrite the relevant fields */
*dest = *src;
dest->rec_type = SA_PATH_REC_TYPE_OPA;
path_conv_ib_to_opa(dest, src);
}
#define IB_SA_MCMEMBER_REC_MGID IB_SA_COMP_MASK( 0)
#define IB_SA_MCMEMBER_REC_PORT_GID IB_SA_COMP_MASK( 1)
#define IB_SA_MCMEMBER_REC_QKEY IB_SA_COMP_MASK( 2)
#define IB_SA_MCMEMBER_REC_MLID IB_SA_COMP_MASK( 3)
#define IB_SA_MCMEMBER_REC_MTU_SELECTOR IB_SA_COMP_MASK( 4)
#define IB_SA_MCMEMBER_REC_MTU IB_SA_COMP_MASK( 5)
#define IB_SA_MCMEMBER_REC_TRAFFIC_CLASS IB_SA_COMP_MASK( 6)
#define IB_SA_MCMEMBER_REC_PKEY IB_SA_COMP_MASK( 7)
#define IB_SA_MCMEMBER_REC_RATE_SELECTOR IB_SA_COMP_MASK( 8)
#define IB_SA_MCMEMBER_REC_RATE IB_SA_COMP_MASK( 9)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME_SELECTOR IB_SA_COMP_MASK(10)
#define IB_SA_MCMEMBER_REC_PACKET_LIFE_TIME IB_SA_COMP_MASK(11)
#define IB_SA_MCMEMBER_REC_SL IB_SA_COMP_MASK(12)
#define IB_SA_MCMEMBER_REC_FLOW_LABEL IB_SA_COMP_MASK(13)
#define IB_SA_MCMEMBER_REC_HOP_LIMIT IB_SA_COMP_MASK(14)
#define IB_SA_MCMEMBER_REC_SCOPE IB_SA_COMP_MASK(15)
#define IB_SA_MCMEMBER_REC_JOIN_STATE IB_SA_COMP_MASK(16)
#define IB_SA_MCMEMBER_REC_PROXY_JOIN IB_SA_COMP_MASK(17)
struct ib_sa_mcmember_rec {
union ib_gid mgid;
union ib_gid port_gid;
__be32 qkey;
__be16 mlid;
u8 mtu_selector;
u8 mtu;
u8 traffic_class;
__be16 pkey;
u8 rate_selector;
u8 rate;
u8 packet_life_time_selector;
u8 packet_life_time;
u8 sl;
__be32 flow_label;
u8 hop_limit;
u8 scope;
u8 join_state;
u8 proxy_join;
};
/* Service Record Component Mask Sec 15.2.5.14 Ver 1.1 */
#define IB_SA_SERVICE_REC_SERVICE_ID IB_SA_COMP_MASK( 0)
#define IB_SA_SERVICE_REC_SERVICE_GID IB_SA_COMP_MASK( 1)
#define IB_SA_SERVICE_REC_SERVICE_PKEY IB_SA_COMP_MASK( 2)
/* reserved: 3 */
#define IB_SA_SERVICE_REC_SERVICE_LEASE IB_SA_COMP_MASK( 4)
#define IB_SA_SERVICE_REC_SERVICE_KEY IB_SA_COMP_MASK( 5)
#define IB_SA_SERVICE_REC_SERVICE_NAME IB_SA_COMP_MASK( 6)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_0 IB_SA_COMP_MASK( 7)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_1 IB_SA_COMP_MASK( 8)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_2 IB_SA_COMP_MASK( 9)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_3 IB_SA_COMP_MASK(10)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_4 IB_SA_COMP_MASK(11)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_5 IB_SA_COMP_MASK(12)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_6 IB_SA_COMP_MASK(13)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_7 IB_SA_COMP_MASK(14)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_8 IB_SA_COMP_MASK(15)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_9 IB_SA_COMP_MASK(16)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_10 IB_SA_COMP_MASK(17)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_11 IB_SA_COMP_MASK(18)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_12 IB_SA_COMP_MASK(19)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_13 IB_SA_COMP_MASK(20)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_14 IB_SA_COMP_MASK(21)
#define IB_SA_SERVICE_REC_SERVICE_DATA8_15 IB_SA_COMP_MASK(22)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_0 IB_SA_COMP_MASK(23)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_1 IB_SA_COMP_MASK(24)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_2 IB_SA_COMP_MASK(25)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_3 IB_SA_COMP_MASK(26)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_4 IB_SA_COMP_MASK(27)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_5 IB_SA_COMP_MASK(28)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_6 IB_SA_COMP_MASK(29)
#define IB_SA_SERVICE_REC_SERVICE_DATA16_7 IB_SA_COMP_MASK(30)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_0 IB_SA_COMP_MASK(31)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_1 IB_SA_COMP_MASK(32)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_2 IB_SA_COMP_MASK(33)
#define IB_SA_SERVICE_REC_SERVICE_DATA32_3 IB_SA_COMP_MASK(34)
#define IB_SA_SERVICE_REC_SERVICE_DATA64_0 IB_SA_COMP_MASK(35)
#define IB_SA_SERVICE_REC_SERVICE_DATA64_1 IB_SA_COMP_MASK(36)
#define IB_DEFAULT_SERVICE_LEASE 0xFFFFFFFF
struct ib_sa_service_rec {
u64 id;
union ib_gid gid;
__be16 pkey;
/* reserved */
u32 lease;
u8 key[16];
u8 name[64];
u8 data8[16];
u16 data16[8];
u32 data32[4];
u64 data64[2];
};
#define IB_SA_GUIDINFO_REC_LID IB_SA_COMP_MASK(0)
#define IB_SA_GUIDINFO_REC_BLOCK_NUM IB_SA_COMP_MASK(1)
#define IB_SA_GUIDINFO_REC_RES1 IB_SA_COMP_MASK(2)
#define IB_SA_GUIDINFO_REC_RES2 IB_SA_COMP_MASK(3)
#define IB_SA_GUIDINFO_REC_GID0 IB_SA_COMP_MASK(4)
#define IB_SA_GUIDINFO_REC_GID1 IB_SA_COMP_MASK(5)
#define IB_SA_GUIDINFO_REC_GID2 IB_SA_COMP_MASK(6)
#define IB_SA_GUIDINFO_REC_GID3 IB_SA_COMP_MASK(7)
#define IB_SA_GUIDINFO_REC_GID4 IB_SA_COMP_MASK(8)
#define IB_SA_GUIDINFO_REC_GID5 IB_SA_COMP_MASK(9)
#define IB_SA_GUIDINFO_REC_GID6 IB_SA_COMP_MASK(10)
#define IB_SA_GUIDINFO_REC_GID7 IB_SA_COMP_MASK(11)
struct ib_sa_guidinfo_rec {
__be16 lid;
u8 block_num;
/* reserved */
u8 res1;
__be32 res2;
u8 guid_info_list[64];
};
struct ib_sa_client {
atomic_t users;
struct completion comp;
};
/**
* ib_sa_register_client - Register an SA client.
*/
void ib_sa_register_client(struct ib_sa_client *client);
/**
* ib_sa_unregister_client - Deregister an SA client.
* @client: Client object to deregister.
*/
void ib_sa_unregister_client(struct ib_sa_client *client);
struct ib_sa_query;
void ib_sa_cancel_query(int id, struct ib_sa_query *query);
int ib_sa_path_rec_get(struct ib_sa_client *client, struct ib_device *device,
u8 port_num, struct sa_path_rec *rec,
ib_sa_comp_mask comp_mask, unsigned long timeout_ms,
gfp_t gfp_mask,
void (*callback)(int status, struct sa_path_rec *resp,
void *context),
void *context, struct ib_sa_query **query);
int ib_sa_service_rec_query(struct ib_sa_client *client,
struct ib_device *device, u8 port_num, u8 method,
struct ib_sa_service_rec *rec,
ib_sa_comp_mask comp_mask, unsigned long timeout_ms,
gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_service_rec *resp,
void *context),
void *context, struct ib_sa_query **sa_query);
struct ib_sa_multicast {
struct ib_sa_mcmember_rec rec;
ib_sa_comp_mask comp_mask;
int (*callback)(int status,
struct ib_sa_multicast *multicast);
void *context;
};
/**
* ib_sa_join_multicast - Initiates a join request to the specified multicast
* group.
* @client: SA client
* @device: Device associated with the multicast group.
* @port_num: Port on the specified device to associate with the multicast
* group.
* @rec: SA multicast member record specifying group attributes.
* @comp_mask: Component mask indicating which group attributes of %rec are
* valid.
* @gfp_mask: GFP mask for memory allocations.
* @callback: User callback invoked once the join operation completes.
* @context: User specified context stored with the ib_sa_multicast structure.
*
* This call initiates a multicast join request with the SA for the specified
* multicast group. If the join operation is started successfully, it returns
* an ib_sa_multicast structure that is used to track the multicast operation.
* Users must free this structure by calling ib_free_multicast, even if the
* join operation later fails. (The callback status is non-zero.)
*
* If the join operation fails; status will be non-zero, with the following
* failures possible:
* -ETIMEDOUT: The request timed out.
* -EIO: An error occurred sending the query.
* -EINVAL: The MCMemberRecord values differed from the existing group's.
* -ENETRESET: Indicates that an fatal error has occurred on the multicast
* group, and the user must rejoin the group to continue using it.
*/
struct ib_sa_multicast *ib_sa_join_multicast(struct ib_sa_client *client,
struct ib_device *device, u8 port_num,
struct ib_sa_mcmember_rec *rec,
ib_sa_comp_mask comp_mask, gfp_t gfp_mask,
int (*callback)(int status,
struct ib_sa_multicast
*multicast),
void *context);
/**
* ib_free_multicast - Frees the multicast tracking structure, and releases
* any reference on the multicast group.
* @multicast: Multicast tracking structure allocated by ib_join_multicast.
*
* This call blocks until the multicast identifier is destroyed. It may
* not be called from within the multicast callback; however, returning a non-
* zero value from the callback will result in destroying the multicast
* tracking structure.
*/
void ib_sa_free_multicast(struct ib_sa_multicast *multicast);
/**
* ib_get_mcmember_rec - Looks up a multicast member record by its MGID and
* returns it if found.
* @device: Device associated with the multicast group.
* @port_num: Port on the specified device to associate with the multicast
* group.
* @mgid: MGID of multicast group.
* @rec: Location to copy SA multicast member record.
*/
int ib_sa_get_mcmember_rec(struct ib_device *device, u8 port_num,
union ib_gid *mgid, struct ib_sa_mcmember_rec *rec);
/**
* ib_init_ah_from_mcmember - Initialize address handle attributes based on
* an SA multicast member record.
*/
int ib_init_ah_from_mcmember(struct ib_device *device, u8 port_num,
struct ib_sa_mcmember_rec *rec,
struct net_device *ndev,
enum ib_gid_type gid_type,
struct rdma_ah_attr *ah_attr);
int ib_init_ah_attr_from_path(struct ib_device *device, u8 port_num,
struct sa_path_rec *rec,
struct rdma_ah_attr *ah_attr,
const struct ib_gid_attr *sgid_attr);
/**
* ib_sa_pack_path - Conert a path record from struct ib_sa_path_rec
* to IB MAD wire format.
*/
void ib_sa_pack_path(struct sa_path_rec *rec, void *attribute);
/**
* ib_sa_unpack_path - Convert a path record from MAD format to struct
* ib_sa_path_rec.
*/
void ib_sa_unpack_path(void *attribute, struct sa_path_rec *rec);
/* Support GuidInfoRecord */
int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
struct ib_device *device, u8 port_num,
struct ib_sa_guidinfo_rec *rec,
ib_sa_comp_mask comp_mask, u8 method,
unsigned long timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_sa_guidinfo_rec *resp,
void *context),
void *context, struct ib_sa_query **sa_query);
static inline bool sa_path_is_roce(struct sa_path_rec *rec)
{
return ((rec->rec_type == SA_PATH_REC_TYPE_ROCE_V1) ||
(rec->rec_type == SA_PATH_REC_TYPE_ROCE_V2));
}
static inline bool sa_path_is_opa(struct sa_path_rec *rec)
{
return (rec->rec_type == SA_PATH_REC_TYPE_OPA);
}
static inline void sa_path_set_slid(struct sa_path_rec *rec, u32 slid)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
rec->ib.slid = cpu_to_be16(slid);
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
rec->opa.slid = cpu_to_be32(slid);
}
static inline void sa_path_set_dlid(struct sa_path_rec *rec, u32 dlid)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
rec->ib.dlid = cpu_to_be16(dlid);
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
rec->opa.dlid = cpu_to_be32(dlid);
}
static inline void sa_path_set_raw_traffic(struct sa_path_rec *rec,
u8 raw_traffic)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
rec->ib.raw_traffic = raw_traffic;
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
rec->opa.raw_traffic = raw_traffic;
}
static inline __be32 sa_path_get_slid(struct sa_path_rec *rec)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
return htonl(ntohs(rec->ib.slid));
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
return rec->opa.slid;
return 0;
}
static inline __be32 sa_path_get_dlid(struct sa_path_rec *rec)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
return htonl(ntohs(rec->ib.dlid));
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
return rec->opa.dlid;
return 0;
}
static inline u8 sa_path_get_raw_traffic(struct sa_path_rec *rec)
{
if (rec->rec_type == SA_PATH_REC_TYPE_IB)
return rec->ib.raw_traffic;
else if (rec->rec_type == SA_PATH_REC_TYPE_OPA)
return rec->opa.raw_traffic;
return 0;
}
static inline void sa_path_set_dmac(struct sa_path_rec *rec, u8 *dmac)
{
if (sa_path_is_roce(rec))
memcpy(rec->roce.dmac, dmac, ETH_ALEN);
}
static inline void sa_path_set_dmac_zero(struct sa_path_rec *rec)
{
if (sa_path_is_roce(rec))
eth_zero_addr(rec->roce.dmac);
}
static inline u8 *sa_path_get_dmac(struct sa_path_rec *rec)
{
if (sa_path_is_roce(rec))
return rec->roce.dmac;
return NULL;
}
#endif /* IB_SA_H */
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