Hi Roland, all
V3 addresses the comments made by Sean. There are still some concerns/questions
posed
by Roland on the uverbs extensions element of the series. I have posted replies
for
them, but so far no further comments were made.
V3 changes:
- Addressed comments from Sean:
- modified the change-log of patch #1 to be clearer on the priority and domain
semantics and usage
- re-arranged the fields of struct ib_flow_attr
- removed check from ib_flow_destroy
- removed the IB flow spec which wasn't inline with the L2/L3/L4 approach
done for Ethernet/IP/TCP|UDP, will use proper IB flow specs when adding
the support for IPoIB flow steering
V2 changes:
- dropped struct ib_kern_flow from patch #3, this structure wasn't
used and was left there by mistake (bug, thanks Roland)
- removed the void *flow_context field from struct ib_flow, this was
pointing to driver private data for that flow, but doesn't belong here,
i.e need not be seen by the verbs consumer but rather hidden.
- renamed struct mlx4_flow_handle to mlx4_ib_flow, a structure that contains
the verbs level struct ib_flow and the mlx4 registeration ID for that flow
V1 changes:
- dropped the five pre-patches which were accepted into 3.10
- rebased the patches against Roland's for-next / 3.10-rc4
- in patch #3, ib_uverbs_destroy_flow was returning too quickly when the driver
returned failure for ib_destroy_flow, need to free some uverbs resources 1st.
- in patch #4, check index before accessing the array at
mlx4_ib_create/destroy_flow
These patches add Flow Steering support to the kernel IB core, to uverbs and
to the mlx4 IB (verbs) driver along with one patch to uverbs which adds
some code to support extensions.
IB/core: Add receive Flow Steering support
IB/core: Infra-structure to support verbs extensions through uverbs
IB/core: Export ib_create/destroy_flow through uverbs
IB/mlx4: Add receive Flow Steering support
The main patch which introduces the Flow-Steering API is "IB/core: Add receive
Flow
Steering support", see its change log. Looking on the "Network Adapter Flow
Steering"
slides from Tzahi Oved which he presented on the annual OFA 2012 meeting could
be helpful
https://www.openfabrics.org/resources/document-downloads/presentations/doc_download/518-network-adapter-flow-steering.html
Or.
Hadar Hen Zion (3):
IB/core: Add receive Flow Steering support
IB/core: Export ib_create/destroy_flow through uverbs
IB/mlx4: Add receive Flow Steering support
Igor Ivanov (1):
IB/core: Infra-structure to support verbs extensions through uverbs
drivers/infiniband/core/uverbs.h | 3 +
drivers/infiniband/core/uverbs_cmd.c | 199 ++++++++++++++++++++++++++++
drivers/infiniband/core/uverbs_main.c | 42 +++++-
drivers/infiniband/core/verbs.c | 27 ++++
drivers/infiniband/hw/mlx4/main.c | 235 +++++++++++++++++++++++++++++++++
drivers/infiniband/hw/mlx4/mlx4_ib.h | 12 ++
include/linux/mlx4/device.h | 5 -
include/rdma/ib_verbs.h | 122 +++++++++++++++++-
include/uapi/rdma/ib_user_verbs.h | 98 ++++++++++++++-
9 files changed, 729 insertions(+), 14 deletions(-)
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