Previously, there was no clean separation between SMC-D code and the ISM device driver.This patch series addresses the situation to make ISM available for uses outside of SMC-D. In detail: SMC-D offers an interface via struct smcd_ops, which only the ISM module implements so far. However, there is no real separation between the smcd and ism modules, which starts right with the ISM device initialization, which calls directly into the SMC-D code. This patch series introduces a new API in the ISM module, which allows registration of arbitrary clients via include/linux/ism.h: struct ism_client. Furthermore, it introduces a "pure" struct ism_dev (i.e. getting rid of dependencies on SMC-D in the device structure), and adds a number of API calls for data transfers via ISM (see ism_register_dmb() & friends). Still, the ISM module implements the SMC-D API, and therefore has a number of internal helper functions for that matter. Note that the ISM API is consciously kept thin for now (as compared to the SMC-D API calls), as a number of API calls are only used with SMC-D and hardly have any meaningful usage beyond SMC-D, e.g. the VLAN-related calls. v1 -> v2: Removed s390x dependency which broke config for other archs. Stefan Raspl (8): net/smc: Terminate connections prior to device removal net/ism: Add missing calls to disable bus-mastering s390/ism: Introduce struct ism_dmb net/ism: Add new API for client registration net/smc: Register SMC-D as ISM client net/smc: Separate SMC-D and ISM APIs s390/ism: Consolidate SMC-D-related code net/smc: De-tangle ism and smc device initialization drivers/s390/net/ism.h | 19 +- drivers/s390/net/ism_drv.c | 376 ++++++++++++++++++++++++++++++------- include/linux/ism.h | 98 ++++++++++ include/net/smc.h | 24 +-- net/smc/af_smc.c | 9 +- net/smc/smc_clc.c | 11 +- net/smc/smc_core.c | 13 +- net/smc/smc_diag.c | 3 +- net/smc/smc_ism.c | 180 ++++++++++-------- net/smc/smc_ism.h | 3 +- net/smc/smc_pnet.c | 40 ++-- 11 files changed, 560 insertions(+), 216 deletions(-) create mode 100644 include/linux/ism.h -- 2.25.1
