linux-toradex.git/net/rds/ib.h, branch v4.8

RDS: TCP: Hooks to set up a single connection path

2016-07-01T20:45:17+00:00

This patch adds ->conn_path_connect callbacks in the rds_transport
that are used to set up a single connection path.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: TCP: make receive path use the rds_conn_path

2016-07-01T20:45:17+00:00

The ->sk_user_data contains a pointer to the rds_conn_path
for the socket. Use this consistently in the rds_tcp_data_ready
callbacks to get the rds_conn_path for rds_recv_incoming.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: Rework path specific indirections

2016-07-01T20:45:17+00:00

Refactor code to avoid separate indirections for single-path
and multipath transports. All transports (both single and mp-capable)
will get a pointer to the rds_conn_path, and can trivially derive
the rds_connection from the ->cp_conn.

Acked-by: Santosh Shilimkar 
Signed-off-by: Sowmini Varadhan 
Signed-off-by: David S. Miller

RDS: IB: Support Fastreg MR (FRMR) memory registration mode

2016-03-02T19:13:19+00:00

Fastreg MR(FRMR) is another method with which one can
register memory to HCA. Some of the newer HCAs supports only fastreg
mr mode, so we need to add support for it to have RDS functional
on them.

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Avinash Repaka 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: IB: allocate extra space on queues for FRMR support

2016-03-02T19:13:19+00:00

Fastreg MR(FRMR) memory registration and invalidation makes use
of work request and completion queues for its operation. Patch
allocates extra queue space towards these operation(s).

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: IB: add Fastreg MR (FRMR) detection support

2016-03-02T19:13:19+00:00

Discovere Fast Memmory Registration support using IB device
IB_DEVICE_MEM_MGT_EXTENSIONS. Certain HCA might support just FRMR
or FMR or both FMR and FRWR. In case both mr type are supported,
default FMR is used.

Default MR is still kept as FMR against what everyone else
is following. Default will be changed to FRMR once the
RDS performance with FRMR is comparable with FMR. The
work is in progress for the same.

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: IB: add mr reused stats

2016-03-02T19:13:19+00:00

Add MR reuse statistics to RDS IB transport.

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: IB: Re-organise ibmr code

2016-03-02T19:13:18+00:00

No functional changes. This is in preperation towards adding
fastreg memory resgitration support.

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

RDS: IB: Remove the RDS_IB_SEND_OP dependency

2016-03-02T19:13:17+00:00

This helps to combine asynchronous fastreg MR completion handler
with send completion handler.

No functional change.

Signed-off-by: Santosh Shilimkar 
Signed-off-by: Santosh Shilimkar 
Signed-off-by: David S. Miller

Merge tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma

2015-11-07T21:33:07+00:00

Pull rdma updates from Doug Ledford:
 "This is my initial round of 4.4 merge window patches.  There are a few
  other things I wish to get in for 4.4 that aren't in this pull, as
  this represents what has gone through merge/build/run testing and not
  what is the last few items for which testing is not yet complete.

   - "Checksum offload support in user space" enablement
   - Misc cxgb4 fixes, add T6 support
   - Misc usnic fixes
   - 32 bit build warning fixes
   - Misc ocrdma fixes
   - Multicast loopback prevention extension
   - Extend the GID cache to store and return attributes of GIDs
   - Misc iSER updates
   - iSER clustering update
   - Network NameSpace support for rdma CM
   - Work Request cleanup series
   - New Memory Registration API"

* tag 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dledford/rdma: (76 commits)
  IB/core, cma: Make __attribute_const__ declarations sparse-friendly
  IB/core: Remove old fast registration API
  IB/ipath: Remove fast registration from the code
  IB/hfi1: Remove fast registration from the code
  RDMA/nes: Remove old FRWR API
  IB/qib: Remove old FRWR API
  iw_cxgb4: Remove old FRWR API
  RDMA/cxgb3: Remove old FRWR API
  RDMA/ocrdma: Remove old FRWR API
  IB/mlx4: Remove old FRWR API support
  IB/mlx5: Remove old FRWR API support
  IB/srp: Dont allocate a page vector when using fast_reg
  IB/srp: Remove srp_finish_mapping
  IB/srp: Convert to new registration API
  IB/srp: Split srp_map_sg
  RDS/IW: Convert to new memory registration API
  svcrdma: Port to new memory registration API
  xprtrdma: Port to new memory registration API
  iser-target: Port to new memory registration API
  IB/iser: Port to new fast registration API
  ...