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IB/SA: Introduce path record specific types

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struct sa_path_rec has a gid_type field. This patch introduces a more
generic path record specific type 'rec_type' which is either IB, ROCE v1
or ROCE v2. The patch also provides conversion functions to get
a gid type from a path record type and vice versa

Reviewed-by: Don Hiatt <don.hiatt@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This commit is contained in:
Dasaratharaman Chandramouli
2017-04-27 19:05:59 -04:00
committed by Doug Ledford
parent c2f8fc4ec4
commit dfa834e1d9
5 changed files with 64 additions and 16 deletions
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33
include/rdma/ib_sa.h
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@@ -147,6 +147,11 @@ enum ib_sa_mc_join_states {
#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
};
struct sa_path_rec {
__be64 service_id;
@@ -176,7 +181,7 @@ struct sa_path_rec {
int ifindex;
/* ignored in IB */
struct net *net;
enum ib_gid_type gid_type;
enum sa_path_rec_type rec_type;
};
static inline struct net_device *ib_get_ndev_from_path(struct sa_path_rec *rec)
@@ -184,6 +189,32 @@ static inline struct net_device *ib_get_ndev_from_path(struct sa_path_rec *rec)
return rec->net ? dev_get_by_index(rec->net, rec->ifindex) : NULL;
}
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;
}
}
#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)