[PATCH net-next v2 0/6] net/smc: several features's implementation for smc v2.1

Guangguan Wang
2023-08-17T13:21:25Z

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.

v1 - v2:
- rename field fce_v20 to fce_v2_base in struct
smc_clc_first_contact_ext_v2x
- use smc_get_clc_first_contact_ext in smc_connect
_rdma_v2_prepare
- adding comment about field vendor_oui in struct
smc_clc_msg_smcd
- remove comment about SMC_CONN_PER_LGR_MAX in smc_
clc_srv_v2x_features_validate
- rename smc_clc_clnt_v2x_features_validate

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 field 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 | 86 +++++++++++++++++------
net/smc/smc.h | 5 +-
net/smc/smc_clc.c | 147 ++++++++++++++++++++++++++++++++-------
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, 299 insertions(+), 57 deletions(-)

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2.24.3 (Apple Git-128)