This patch set extends the IPv4 and IPv6 flow specification.
New fields in IPv4:
1. Type of Service
2. Time to Live
3. Flags
4. Protocol
New fields in IPv6:
1. Traffic Class
2. Flow Label
3. Next Header
4. Hop Limit
The first patch in this series adds support to extend the flow
steering specification. Previously, user flow specification
and kernel flow specification were must to be equal in their size.
To support extensions, we change the flow specifications conditions
test to be as following:
1. Every mask field that is given by the user and doesn't exist in
kernel is validated to be zero. Thus, new user-space would only fail
if it's using (i.e field_mask != 0) a field which doesn't exist in
the current kernel version.
2. All types are known by the kernel.
3. If the kernel is newer than the user-space, all fields (and by
that, their masks) weren't given by the user are assumed as zeros
and ignored.
4. The ABI declares filters as 32bit aligned. This is necessary to
avoid unaligned access when reading the header.
Available in the "topic/ext-flow" topic branch of this git repo:
git://git.kernel.org/pub/scm/linux/kernel/git/leon/linux-rdma.git
Or for browsing:
https://git.kernel.org/cgit/linux/kernel/git/leon/linux-rdma.git/log/?h=topic/ext-flow
Thanks,
Maor & Leon
Maor Gottlieb (5):
IB/core: Add support to extend flow steering specifications
IB/core: Add more fields to IPv4 flow specification
IB/core: Add more fields to IPv6 flow specification
IB/mlx5: Add support in TOS and protocol to flow steering
IB/mlx5: Add support of more IPv6 fields to flow steering
drivers/infiniband/core/uverbs_cmd.c | 102 ++++++++++++++++++++++++--------
drivers/infiniband/hw/mlx4/main.c | 25 ++++++++
drivers/infiniband/hw/mlx5/main.c | 110 ++++++++++++++++++++++++++++-------
include/rdma/ib_verbs.h | 23 ++++++++
include/uapi/rdma/ib_user_verbs.h | 13 ++++-
5 files changed, 226 insertions(+), 47 deletions(-)
--
2.7.4
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