net/smc: several features's implementation for smc v2.1

From:		Guangguan Wang <guangguan.wang-AT-linux.alibaba.com>
To:		wenjia-AT-linux.ibm.com, jaka-AT-linux.ibm.com, kgraul-AT-linux.ibm.com, tonylu-AT-linux.alibaba.com, davem-AT-davemloft.net, edumazet-AT-google.com, kuba-AT-kernel.org, pabeni-AT-redhat.com
Subject:		[PATCH net-next 0/6] net/smc: several features's implementation for smc v2.1
Date:		Wed, 16 Aug 2023 16:33:22 +0800
Message-ID:		<20230816083328.95746-1-guangguan.wang@linux.alibaba.com>
Cc:		horms-AT-kernel.org, alibuda-AT-linux.alibaba.com, guwen-AT-linux.alibaba.com, linux-s390-AT-vger.kernel.org, netdev-AT-vger.kernel.org, linux-kernel-AT-vger.kernel.org
Archive-link:		Article

This patch set implement several new features in SMC v2.1(https://
www.ibm.com/support/pages/node/7009315), including vendor unique
experimental options, max connections per lgr negotiation, max links
per lgr negotiation.

I have removed the RFC tag and changed the patch series to formal
patch series from this version.

RFC v2 - v1:
 - more description in commit message
 - modify SMC_CONN_PER_LGR_xxx and SMC_LINKS_ADD_LNK_xxx
   macro defination and usage
 - rename variable release_ver to release_nr
 - remove redundant release version check in client
 - explicitly set the rc value in smc_llc_cli/srv_add_link

RFC v1 - RFC v2:
 - Remove ini pointer NULL check and fix code style in
   smc_clc_send_confirm_accept.
 - Optimize the max_conns check in smc_clc_xxx_v2x_features_validate.

Guangguan Wang (6):
  net/smc: support smc release version negotiation in clc handshake
  net/smc: add vendor unique experimental options area in clc handshake
  net/smc: support smc v2.x features validate
  net/smc: support max connections per lgr negotiation
  net/smc: support max links per lgr negotiation in clc handshake
  net/smc: Extend SMCR v2 linkgroup netlink attribute

 include/uapi/linux/smc.h |   2 +
 net/smc/af_smc.c         |  83 ++++++++++++++++------
 net/smc/smc.h            |   5 +-
 net/smc/smc_clc.c        | 150 ++++++++++++++++++++++++++++++++-------
 net/smc/smc_clc.h        |  53 ++++++++++++--
 net/smc/smc_core.c       |  13 +++-
 net/smc/smc_core.h       |  25 +++++++
 net/smc/smc_llc.c        |  25 +++++--
 8 files changed, 301 insertions(+), 55 deletions(-)

-- 
2.24.3 (Apple Git-128)