v1->v2: (Address comments from Anatoly and Konstantin) - Use datagram unix socket to supersede stream unix socket + epoll. - Change the secondary add/del mechanism as now we use connection-less channel. - Add mp_mutex_action to sync action register/unregister/reference. - Limit max length of action name to 64B. - New APIs for synchronous communication: rte_eal_mp_request/rte_eal_mp_reply. - Formalize the errno handle. - Some other small issues.
This patchset adds a generic channel for multi-process (primary/secondary) communication. Patch 1: addess the purpose and howto; Patch 2: secondary process add/del; Patch 3: add a syncrhonous way for the requests which need a immediate response. Patch 4: Rework vfio to use this generic communication channel. Jianfeng Tan (4): eal: add channel for multi-process communication eal: add and del secondary processes in the primary eal: add synchronous multi-process communication vfio: use the generic multi-process channel lib/librte_eal/common/eal_common_proc.c | 594 +++++++++++++++++++++++++ lib/librte_eal/common/eal_filesystem.h | 17 + lib/librte_eal/common/eal_private.h | 10 + lib/librte_eal/common/include/rte_eal.h | 138 ++++++ lib/librte_eal/linuxapp/eal/eal.c | 22 +- lib/librte_eal/linuxapp/eal/eal_vfio.c | 133 ++---- lib/librte_eal/linuxapp/eal/eal_vfio.h | 15 +- lib/librte_eal/linuxapp/eal/eal_vfio_mp_sync.c | 409 +++-------------- lib/librte_eal/rte_eal_version.map | 11 + 9 files changed, 872 insertions(+), 477 deletions(-) -- 2.7.4
