[net-next,v2,00/11] net/smc: introduce SMC-Rv2 support

Message

Karsten Graul Oct. 14, 2021, 4:47 p.m. UTC

Please apply the following patch series for smc to netdev's net-next tree.

SMC-Rv2 support (see https://www.ibm.com/support/pages/node/6326337)
provides routable RoCE support for SMC-R, eliminating the current
same-subnet restriction, by exploiting the UDP encapsulation feature
of the RoCE adapter hardware.

Patch 1 ("net/smc: improved fix wait on already cleared link") is
already applied on netdevs net tree but its changes are needed for
this series on net-next. The patch is unchanged compared to the
version on the net tree.

v2: resend of the v1 patch series, and CC linux-rdma this time

Karsten Graul (11):
  net/smc: improved fix wait on already cleared link
  net/smc: save stack space and allocate smc_init_info
  net/smc: prepare for SMC-Rv2 connection
  net/smc: add SMC-Rv2 connection establishment
  net/smc: add listen processing for SMC-Rv2
  net/smc: add v2 format of CLC decline message
  net/smc: retrieve v2 gid from IB device
  net/smc: add v2 support to the work request layer
  net/smc: extend LLC layer for SMC-Rv2
  net/smc: add netlink support for SMC-Rv2
  net/smc: stop links when their GID is removed

 include/uapi/linux/smc.h |  17 +-
 net/smc/af_smc.c         | 431 +++++++++++++++++-------
 net/smc/smc.h            |  20 +-
 net/smc/smc_cdc.c        |   7 +-
 net/smc/smc_clc.c        | 147 +++++++--
 net/smc/smc_clc.h        |  55 +++-
 net/smc/smc_core.c       | 193 +++++++----
 net/smc/smc_core.h       |  50 ++-
 net/smc/smc_ib.c         | 160 ++++++++-
 net/smc/smc_ib.h         |  16 +-
 net/smc/smc_llc.c        | 684 ++++++++++++++++++++++++++++++---------
 net/smc/smc_llc.h        |  12 +-
 net/smc/smc_pnet.c       |  41 ++-
 net/smc/smc_tx.c         |  22 +-
 net/smc/smc_wr.c         | 237 ++++++++++++--
 net/smc/smc_wr.h         |  22 ++
 16 files changed, 1691 insertions(+), 423 deletions(-)

Comments

David Miller Oct. 16, 2021, 8:03 a.m. UTC | #1

From: Karsten Graul <[e-mail]>
Date: Thu, 14 Oct 2021 18:47:41 +0200

> Please apply the following patch series for smc to netdev's net-next tree.
> 
> SMC-Rv2 support (see https://www.ibm.com/support/pages/node/6326337)
> provides routable RoCE support for SMC-R, eliminating the current
> same-subnet restriction, by exploiting the UDP encapsulation feature
> of the RoCE adapter hardware.
> 
> Patch 1 ("net/smc: improved fix wait on already cleared link") is
> already applied on netdevs net tree but its changes are needed for
> this series on net-next. The patch is unchanged compared to the
> version on the net tree.
> 
> v2: resend of the v1 patch series, and CC linux-rdma this time

This does not apply cleanly to net-next, please respin.

Thank you.