Traditional IB path records have 16 bit SLID and DLID
fields that cannot really be used by applications and ULPs working
with 32-bit LIDs. OPA path records add support for 32 bit
SLIDs and DLIDs. Support for OPA path records is specified
by bit 26 of the capmask2 field in the OPA class portinfo.
Note that these patches apply on the earlier patch series with subject
"[PATCH v3 rdma-next 00/18] Enhance ib_ah_attr to specify types"
Changes from v2:
---------------
* Fixes to patch 4:
- Perform NULL check before copying dmac from path record.
* Fixes to patch 5:
- Consider endianness of slid and dlid when converting from OPA
to IB path record type.
- Fix helper function sa_path_get_dlid
* Fixes to patch 6:
- Free path record if path record query fails
Changes from v1:
---------------
* Remove an unneeded change that was introduced in
ulp/srpt/ib_srpt.c
This patches are organized as follows:
* Patch 1 performs checkpatch fixes that later patches
touch upon.
* Patch 2 renames ib_sa_path_rec to sa_path_rec
* Patch 3 introduces the 'rec_type' field that identifies
a path record type. This field replaces the existing
'gid_type' field.
* Patch 4 splits the existing sa_path_rec into a union of
sa_path_rec_ib and sa_path_rec_roce structures. Fields that
are common to both continue to be part of sa_path_rec.
* Patch 5 extends sa_path_rec to have path records of type opa
* Patch 6 enables SA component to query for OPA path records if
ULPs and other kernel components request for it
Dasaratharaman Chandramouli (6):
IB/CM: Add braces when using sizeof
IB/SA: Rename ib_sa_path_rec to sa_path_rec
IB/SA: Introduce path record specific types
IB/SA: Split struct sa_path_rec based on IB and ROCE specific fields
IB/SA: Add OPA path record type
IB/SA: Add support to query OPA path records
drivers/infiniband/core/cm.c | 103 +++++----
drivers/infiniband/core/cma.c | 50 +++--
drivers/infiniband/core/sa_query.c | 337 ++++++++++++++++++++++++++----
drivers/infiniband/core/ucm.c | 6 +-
drivers/infiniband/core/ucma.c | 24 ++-
drivers/infiniband/core/uverbs_marshall.c | 52 +++--
drivers/infiniband/ulp/ipoib/ipoib.h | 2 +-
drivers/infiniband/ulp/ipoib/ipoib_cm.c | 6 +-
drivers/infiniband/ulp/ipoib/ipoib_fs.c | 6 +-
drivers/infiniband/ulp/ipoib/ipoib_main.c | 22 +-
drivers/infiniband/ulp/srp/ib_srp.c | 13 +-
drivers/infiniband/ulp/srp/ib_srp.h | 2 +-
include/rdma/ib_cm.h | 14 +-
include/rdma/ib_mad.h | 13 ++
include/rdma/ib_marshall.h | 4 +-
include/rdma/ib_sa.h | 287 +++++++++++++++++++++++--
include/rdma/opa_addr.h | 79 +++++++
include/rdma/rdma_cm.h | 2 +-
include/rdma/rdma_cm_ib.h | 2 +-
19 files changed, 859 insertions(+), 165 deletions(-)
create mode 100644 include/rdma/opa_addr.h
--
1.8.3.1
--
To unsubscribe from this list: send the line "unsubscribe linux-rdma" in
the body of a message to majordomo@xxxxxxxxxxxxxxx
More majordomo info at http://vger.kernel.org/majordomo-info.html
