Hi Doug,
This series adds the support for RoCE v2. In order to support RoCE v2,
we add gid_type attribute to every GID. When the RoCE GID management
populates the GID table, it duplicates each GID with all supported types.
This gives the user the ability to communicate over each supported
type.
Patch 0001, 0002 and 0003 add support for multiple GID types to the
cache and related APIs. The third patch exposes the GID attributes
information is sysfs.
Patch 0004 adds the RoCE v2 GID type and the capabilities required
from the vendor in order to implement RoCE v2. These capabilities
are grouped together as RDMA_CORE_PORT_IBA_ROCE_UDP_ENCAP.
RoCE v2 could work at IPv4 and IPv6 networks. When receiving ib_wc, this
information should come from the vendor's driver. In case the vendor
doesn't supply this information, we parse the packet headers and resolve
its network type. Patch 0005 adds this information and required utilities.
Patches 0006 and 0007 adds route validation. This is mandatory to ensure
that we send packets using GIDS which corresponds to a net-device that
can be routed to the destination.
Patches 0008 and 0009 add configfs support (and the required
infrastructure) for CMA. The administrator should be able to set the
default RoCE type. This is done through a new per-port
default_roce_mode configfs file.
Patch 0010 formats a QP1 packet in order to support RoCE v2 CM
packets. This is required for vendors which implement their
QP1 as a Raw QP.
Patch 0011 adds support for IPv4 multicast as an IPv4 network
requires IGMP to be sent in order to join multicast groups.
Vendors code aren't part of this patch-set. Soft-Roce will be
sent soon and depends on these patches. Other vendors, like
mlx4, ocrdma and mlx5 will follow.
This patch is applied on the "Change per-entry locks in GID cache to
table lock" series which was sent to the mailing list.
Thanks,
Matan
Changes from V2:
- Rebase over Doug's k.o/for-4.5
- Make INFINIBAND_ADDR_TRANS_CONFIGFS depends on CONFIGFS
Changes from V1:
- Rebased against Linux 4.4-rc2 master branch.
- Add route validation
- ConfigFS - avoid compiling INFINIBAND=y and CONFIGFS_FS=m
- Add documentation for configfs and sysfs ABI
- Remove ifindex and gid_type from mcmember
Changes from V0:
- Rebased patches against Doug's latest k.o/for-4.4 tree.
- Fixed a bug in configfs (rmdir caused an incorrect free).
Matan Barak (8):
IB/core: Add gid_type to gid attribute
IB/cm: Use the source GID index type
IB/core: Add gid attributes to sysfs
IB/core: Add ROCE_UDP_ENCAP (RoCE V2) type
IB/core: Move rdma_is_upper_dev_rcu to header file
IB/core: Validate route in ib_init_ah_from_wc and
ib_init_ah_from_path
IB/rdma_cm: Add wrapper for cma reference count
IB/cma: Add configfs for rdma_cm
Moni Shoua (2):
IB/core: Initialize UD header structure with IP and UDP headers
IB/cma: Join and leave multicast groups with IGMP
Somnath Kotur (1):
IB/core: Add rdma_network_type to wc
Documentation/ABI/testing/configfs-rdma_cm | 22 ++
Documentation/ABI/testing/sysfs-class-infiniband | 16 +
drivers/infiniband/Kconfig | 9 +
drivers/infiniband/core/Makefile | 2 +
drivers/infiniband/core/addr.c | 185 +++++++++----
drivers/infiniband/core/cache.c | 169 ++++++++---
drivers/infiniband/core/cm.c | 31 ++-
drivers/infiniband/core/cma.c | 259 ++++++++++++++++--
drivers/infiniband/core/cma_configfs.c | 322 ++++++++++++++++++++++
drivers/infiniband/core/core_priv.h | 45 +++
drivers/infiniband/core/device.c | 9 +-
drivers/infiniband/core/multicast.c | 17 +-
drivers/infiniband/core/roce_gid_mgmt.c | 81 ++++--
drivers/infiniband/core/sa_query.c | 76 +++++-
drivers/infiniband/core/sysfs.c | 184 ++++++++++++-
drivers/infiniband/core/ud_header.c | 155 ++++++++++-
drivers/infiniband/core/uverbs_marshall.c | 1 +
drivers/infiniband/core/verbs.c | 170 ++++++++++--
drivers/infiniband/hw/mlx4/qp.c | 7 +-
drivers/infiniband/hw/mthca/mthca_qp.c | 2 +-
drivers/infiniband/hw/ocrdma/ocrdma_ah.c | 2 +-
include/rdma/ib_addr.h | 11 +-
include/rdma/ib_cache.h | 4 +
include/rdma/ib_pack.h | 45 +++-
include/rdma/ib_sa.h | 3 +
include/rdma/ib_verbs.h | 78 +++++-
26 files changed, 1703 insertions(+), 202 deletions(-)
create mode 100644 Documentation/ABI/testing/configfs-rdma_cm
create mode 100644 Documentation/ABI/testing/sysfs-class-infiniband
create mode 100644 drivers/infiniband/core/cma_configfs.c
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