[LSF/MM/BPF RFC PATCH 00/13]

[Md Haris Iqbal <haris.iqbal@ionos.com>]

Following a conversation with Bart yesterday, I am sending the RMR+BRMR
code through patch for easier review.

The patches apply over the for-next branch of the block tree over commit
07dfa981ca3

For context,
RMR (Reliable Multicast over RTRS) is a kernel module that provides
active-active block-level replication over RDMA. It guarantees delivery
of IO to a group of storage nodes and handles resynchronization of data
directly between storage nodes without involving the compute client.

BRMR (Block device over RMR) sits on top of RMR and exposes a standard
Linux block device (/dev/brmrX) backed by an RMR pool. Together, RMR and
BRMR provide a single-hop replication and resynchronization solution for
RDMA-connected storage clusters.

My session is on Wednesday, at 12 in the storage room (Istanbul).

The modules are still in-development. Many of the parts are only
functionally complete. Some features (backend store replace) are
disabled for now.

Documentation: https://ionos-cloud.github.io/rmr.io/index.html
GitHub link: https://github.com/ionos-cloud/RMR (for kernel v6.12)

Md Haris Iqbal (13):
  RDMA/rmr: add public and private headers
  RDMA/rmr: add shared library code (pool, map, request)
  RDMA/rmr: client: main functionality
  RDMA/rmr: client: sysfs interface functions
  RDMA/rmr: server: main functionality
  RDMA/rmr: server: sysfs interface functions
  RDMA/rmr: include client and server modules into kernel compilation
  block/brmr: add private headers with brmr protocol structs and helpers
  block/brmr: client: main functionality
  block/brmr: client: sysfs interface functions
  block/brmr: server: main functionality
  block/brmr: server: sysfs interface functions
  block/brmr: include client and server modules into kernel compilation

 drivers/block/Kconfig                      |    2 +
 drivers/block/Makefile                     |    1 +
 drivers/block/brmr/Kconfig                 |   28 +
 drivers/block/brmr/Makefile                |   16 +
 drivers/block/brmr/brmr-clt-reque.c        |  228 ++
 drivers/block/brmr/brmr-clt-stats.c        |  332 ++
 drivers/block/brmr/brmr-clt-sysfs.c        |  463 +++
 drivers/block/brmr/brmr-clt.c              | 1222 +++++++
 drivers/block/brmr/brmr-clt.h              |  299 ++
 drivers/block/brmr/brmr-proto.h            |  121 +
 drivers/block/brmr/brmr-srv-sysfs.c        |  707 ++++
 drivers/block/brmr/brmr-srv.c              | 1402 +++++++
 drivers/block/brmr/brmr-srv.h              |  133 +
 drivers/infiniband/Kconfig                 |    1 +
 drivers/infiniband/ulp/Makefile            |    1 +
 drivers/infiniband/ulp/rmr/Kconfig         |   35 +
 drivers/infiniband/ulp/rmr/Makefile        |   23 +
 drivers/infiniband/ulp/rmr/rmr-clt-stats.c |   29 +
 drivers/infiniband/ulp/rmr/rmr-clt-sysfs.c | 1496 ++++++++
 drivers/infiniband/ulp/rmr/rmr-clt-trace.c |   11 +
 drivers/infiniband/ulp/rmr/rmr-clt-trace.h |  110 +
 drivers/infiniband/ulp/rmr/rmr-clt.c       | 3866 ++++++++++++++++++++
 drivers/infiniband/ulp/rmr/rmr-clt.h       |  291 ++
 drivers/infiniband/ulp/rmr/rmr-map-mgmt.c  |  933 +++++
 drivers/infiniband/ulp/rmr/rmr-map.c       |  904 +++++
 drivers/infiniband/ulp/rmr/rmr-map.h       |  246 ++
 drivers/infiniband/ulp/rmr/rmr-pool.c      |  401 ++
 drivers/infiniband/ulp/rmr/rmr-pool.h      |  400 ++
 drivers/infiniband/ulp/rmr/rmr-proto.h     |  273 ++
 drivers/infiniband/ulp/rmr/rmr-req.c       |  796 ++++
 drivers/infiniband/ulp/rmr/rmr-req.h       |   65 +
 drivers/infiniband/ulp/rmr/rmr-srv-md.c    |  764 ++++
 drivers/infiniband/ulp/rmr/rmr-srv-sysfs.c | 1047 ++++++
 drivers/infiniband/ulp/rmr/rmr-srv.c       | 3306 +++++++++++++++++
 drivers/infiniband/ulp/rmr/rmr-srv.h       |  219 ++
 drivers/infiniband/ulp/rmr/rmr.h           |  229 ++
 36 files changed, 20400 insertions(+)
 create mode 100644 drivers/block/brmr/Kconfig
 create mode 100644 drivers/block/brmr/Makefile
 create mode 100644 drivers/block/brmr/brmr-clt-reque.c
 create mode 100644 drivers/block/brmr/brmr-clt-stats.c
 create mode 100644 drivers/block/brmr/brmr-clt-sysfs.c
 create mode 100644 drivers/block/brmr/brmr-clt.c
 create mode 100644 drivers/block/brmr/brmr-clt.h
 create mode 100644 drivers/block/brmr/brmr-proto.h
 create mode 100644 drivers/block/brmr/brmr-srv-sysfs.c
 create mode 100644 drivers/block/brmr/brmr-srv.c
 create mode 100644 drivers/block/brmr/brmr-srv.h
 create mode 100644 drivers/infiniband/ulp/rmr/Kconfig
 create mode 100644 drivers/infiniband/ulp/rmr/Makefile
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt-stats.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt-sysfs.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt-trace.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt-trace.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-clt.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-map-mgmt.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-map.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-map.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-pool.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-pool.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-proto.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-req.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-req.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-srv-md.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-srv-sysfs.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-srv.c
 create mode 100644 drivers/infiniband/ulp/rmr/rmr-srv.h
 create mode 100644 drivers/infiniband/ulp/rmr/rmr.h

-- 
2.43.0