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IB/SA: Modify SA to implicitly cache Class Port info

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SA will query and cache class port info as part of
its initialization. SA will also invalidate and
refresh the cache based on specific events. Callers such
as IPoIB and CM can query the SA to get the classportinfo
information. Apart from making the caller code much simpler,
this change puts the onus on the SA to query and maintain
classportinfo much like how it maitains the address handle to the SM.

Reviewed-by: Ira Weiny <[email protected]>
Reviewed-by: Don Hiatt <[email protected]>
Signed-off-by: Dasaratharaman Chandramouli <[email protected]>
Signed-off-by: Doug Ledford <[email protected]>
This commit is contained in:
Dasaratharaman Chandramouli 2017-03-20 19:38:08 -04:00 • committed by Doug Ledford
commit ee1c60b1bf
6 changed files with 137 additions and 207 deletions
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12
include/rdma/ib_sa.h
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@ -454,14 +454,8 @@ int ib_sa_guid_info_rec_query(struct ib_sa_client *client,
void *context,
struct ib_sa_query **sa_query);
/* Support get SA ClassPortInfo */
int ib_sa_classport_info_rec_query(struct ib_sa_client *client,
struct ib_device *device, u8 port_num,
int timeout_ms, gfp_t gfp_mask,
void (*callback)(int status,
struct ib_class_port_info *resp,
void *context),
void *context,
struct ib_sa_query **sa_query);
bool ib_sa_sendonly_fullmem_support(struct ib_sa_client *client,
struct ib_device *device,
u8 port_num);
#endif /* IB_SA_H */