This patch ensure not overwrite device data in the multiprocess application.
1)Changes in the library introduces continuity in array rte_eth_dev_data[] shared between all processes. Secondary process adds new entries in free space instead of overwriting existing entries. 2)Changes in application testpmd allow secondary process to attach the mempool created by primary process rather than create new and in the case of quit or force quit to free devices data from shared array rte_eth_dev_data[]. Breaking ABI: Changes in the library librte_ether causes extending existing structure rte_eth_dev_data with a new field lock. The reason is that this structure is sharing between all the processes so it should be protected against attempting to write from two different processes. Tomasz Kulasek sent announce ABI change in librte_ether on 21 July 2016. I would like to join to this breaking ABI, if it is possible. v2: * fix syntax error in version script Marcin Kerlin (2): librte_ether: ensure not overwrite device data in mp app app/testpmd: improve handling of multiprocess app/test-pmd/testpmd.c | 36 +++++++++++++- app/test-pmd/testpmd.h | 1 + lib/librte_ether/rte_ethdev.c | 90 +++++++++++++++++++++++++++++++--- lib/librte_ether/rte_ethdev.h | 24 +++++++++ lib/librte_ether/rte_ether_version.map | 7 +++ 5 files changed, 148 insertions(+), 10 deletions(-) -- 1.9.1
