* [PATCH rdma-next v3 0/6] Add Enhanced Connection Established (ECE)
@ 2020-05-26 10:32 Leon Romanovsky
2020-05-27 19:14 ` Jason Gunthorpe
0 siblings, 1 reply; 2+ messages in thread
From: Leon Romanovsky @ 2020-05-26 10:32 UTC (permalink / raw)
To: Doug Ledford, Jason Gunthorpe
Cc: Leon Romanovsky, Bart Van Assche, Chaitanya Kulkarni,
Christoph Hellwig, Danil Kipnis, David S. Miller, Jack Wang,
Jakub Kicinski, linux-kernel, linux-nvme, linux-rdma, netdev,
rds-devel, Sagi Grimberg, Santosh Shilimkar, target-devel
From: Leon Romanovsky <leonro@mellanox.com>
Changelog:
v3:
* Rebased on top of ebd6e96b33a2 RDMA/ipoib: Remove can_sleep parameter from iboib_mcast_alloc
* Updated rdma_reject patch to include newly added RTR ulp
* Remove empty hunks added by rebase
* Changed signature of rdma_reject so kernel users will provide reason by themselves
* Squashed UAPI patch to other patches which add functionality
* Removed define of the IBTA reason from UAPI
v2: https://lore.kernel.org/linux-rdma/20200413141538.935574-1-leon@kernel.org/
* Rebased on latest rdma-next and removed already accepted patches.
* Updated all rdma_reject in-kernel users to provide reject reason.
v1: Dropped field_avail patch in favor of mass conversion to use function
which already exists in the kernel code.
https://lore.kernel.org/lkml/20200310091438.248429-1-leon@kernel.org
v0: https://lore.kernel.org/lkml/20200305150105.207959-1-leon@kernel.org
Enhanced Connection Established or ECE is new negotiation scheme
introduced in IBTA v1.4 to exchange extra information about nodes
capabilities and later negotiate them at the connection establishment
phase.
The RDMA-CM messages (REQ, REP, SIDR_REQ and SIDR_REP) were extended
to carry two fields, one new and another gained new functionality:
* VendorID is a new field that indicates that common subset of vendor
option bits are supported as indicated by that VendorID.
* AttributeModifier already exists, but overloaded to indicate which
vendor options are supported by this VendorID.
This is kernel part of such functionality which is responsible to get data
from librdmacm and properly create and handle RDMA-CM messages.
Thanks
Leon Romanovsky (6):
RDMA/cm: Add Enhanced Connection Establishment (ECE) bits
RDMA/ucma: Extend ucma_connect to receive ECE parameters
RDMA/ucma: Deliver ECE parameters through UCMA events
RDMA/cm: Send and receive ECE parameter over the wire
RDMA/cma: Connect ECE to rdma_accept
RDMA/cma: Provide ECE reject reason
drivers/infiniband/core/cm.c | 39 ++++++++++++++---
drivers/infiniband/core/cma.c | 57 ++++++++++++++++++++++---
drivers/infiniband/core/cma_priv.h | 1 +
drivers/infiniband/core/ucma.c | 49 +++++++++++++++++----
drivers/infiniband/ulp/isert/ib_isert.c | 4 +-
drivers/infiniband/ulp/rtrs/rtrs-srv.c | 2 +-
drivers/infiniband/ulp/srpt/ib_srpt.c | 3 +-
drivers/nvme/target/rdma.c | 3 +-
include/rdma/ib_cm.h | 9 +++-
include/rdma/ibta_vol1_c12.h | 6 +++
include/rdma/rdma_cm.h | 9 +++-
include/uapi/rdma/rdma_user_cm.h | 11 ++++-
net/rds/ib_cm.c | 4 +-
13 files changed, 170 insertions(+), 27 deletions(-)
--
2.26.2
^ permalink raw reply [flat|nested] 2+ messages in thread
* Re: [PATCH rdma-next v3 0/6] Add Enhanced Connection Established (ECE)
2020-05-26 10:32 [PATCH rdma-next v3 0/6] Add Enhanced Connection Established (ECE) Leon Romanovsky
@ 2020-05-27 19:14 ` Jason Gunthorpe
0 siblings, 0 replies; 2+ messages in thread
From: Jason Gunthorpe @ 2020-05-27 19:14 UTC (permalink / raw)
To: Leon Romanovsky
Cc: Doug Ledford, Leon Romanovsky, Bart Van Assche,
Chaitanya Kulkarni, Christoph Hellwig, Danil Kipnis,
David S. Miller, Jack Wang, Jakub Kicinski, linux-kernel,
linux-nvme, linux-rdma, netdev, rds-devel, Sagi Grimberg,
Santosh Shilimkar, target-devel
On Tue, May 26, 2020 at 01:32:58PM +0300, Leon Romanovsky wrote:
> From: Leon Romanovsky <leonro@mellanox.com>
>
> Changelog:
> v3:
> * Rebased on top of ebd6e96b33a2 RDMA/ipoib: Remove can_sleep parameter from iboib_mcast_alloc
> * Updated rdma_reject patch to include newly added RTR ulp
> * Remove empty hunks added by rebase
> * Changed signature of rdma_reject so kernel users will provide reason by themselves
> * Squashed UAPI patch to other patches which add functionality
> * Removed define of the IBTA reason from UAPI
> v2: https://lore.kernel.org/linux-rdma/20200413141538.935574-1-leon@kernel.org/
> * Rebased on latest rdma-next and removed already accepted patches.
> * Updated all rdma_reject in-kernel users to provide reject reason.
> v1: Dropped field_avail patch in favor of mass conversion to use function
> which already exists in the kernel code.
> https://lore.kernel.org/lkml/20200310091438.248429-1-leon@kernel.org
> v0: https://lore.kernel.org/lkml/20200305150105.207959-1-leon@kernel.org
>
> Enhanced Connection Established or ECE is new negotiation scheme
> introduced in IBTA v1.4 to exchange extra information about nodes
> capabilities and later negotiate them at the connection establishment
> phase.
>
> The RDMA-CM messages (REQ, REP, SIDR_REQ and SIDR_REP) were extended
> to carry two fields, one new and another gained new functionality:
> * VendorID is a new field that indicates that common subset of vendor
> option bits are supported as indicated by that VendorID.
> * AttributeModifier already exists, but overloaded to indicate which
> vendor options are supported by this VendorID.
>
> This is kernel part of such functionality which is responsible to get data
> from librdmacm and properly create and handle RDMA-CM messages.
>
> Thanks
>
> Leon Romanovsky (6):
> RDMA/cm: Add Enhanced Connection Establishment (ECE) bits
> RDMA/ucma: Extend ucma_connect to receive ECE parameters
> RDMA/ucma: Deliver ECE parameters through UCMA events
> RDMA/cm: Send and receive ECE parameter over the wire
> RDMA/cma: Connect ECE to rdma_accept
> RDMA/cma: Provide ECE reject reason
Applied to for-next, thanks
Jason
^ permalink raw reply [flat|nested] 2+ messages in thread
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