iSER support for iWARP

The following series implements support for iWARP transports in the iSER initiator and target. This is based on Doug's k.o/for-4.2 branch.

I've tested this on cxgb4 and mlx4 hardware.

Changes since V1:

Introduce and use transport-independent RDMA core services for allocating DMA MRs and computing fast register access flags.

Correctly set the device max_sge_rd capability in several rdma device drivers.

isert: use device capability max_sge_rd for the read sge depth.

isert: change max_sge to max_write_sge in struct isert_conn.

---

Sagi Grimberg (1):
mlx4, mlx5, mthca: Expose max_sge_rd correctly

Steve Wise (4):
ipath,qib: Expose max_sge_rd correctly RDMA/core: transport-independent access flags RDMA/iser: support iWARP devices RDMA/isert: support iWARP devices

 drivers/infiniband/core/verbs.c              |   30 ++++++++
 drivers/infiniband/hw/ipath/ipath_verbs.c    |    1 
 drivers/infiniband/hw/mlx4/main.c            |    1 
 drivers/infiniband/hw/mlx5/main.c            |    1 
 drivers/infiniband/hw/mthca/mthca_provider.c |    1 
 drivers/infiniband/hw/qib/qib_verbs.c        |    1 
 drivers/infiniband/ulp/iser/iscsi_iser.c     |    7 ++
 drivers/infiniband/ulp/iser/iser_memory.c    |    7 +-
 drivers/infiniband/ulp/iser/iser_verbs.c     |    7 +-
 drivers/infiniband/ulp/isert/ib_isert.c      |   33 ++++++--
 drivers/infiniband/ulp/isert/ib_isert.h      |    3 +
 include/rdma/ib_verbs.h                      |  101 ++++++++++++++++++++++++++
 12 files changed, 174 insertions(+), 19 deletions(-)

--
Steve
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