In this v4, it restores back to only save last avail index and its wrap counter value at get time, and restore both used and avail indexes to avail values at set time. The change compared to v1 is that wrap counter value is saved into bit 15, so that it is consistent with the event suppression structure format.
Initial series ading packed ring layout support to the vhost library was missing the save and restore of the wrap counters and indexs on vring base requests used for migration. First patch saves/restores the used and avail indexes and their wrap counters values into/from the vring state num field. Maxime Coquelin (2): vhost: add packed ring support to vring base requests vhost: advertize packed ring layout support lib/librte_vhost/vhost.h | 3 ++- lib/librte_vhost/vhost_user.c | 40 +++++++++++++++++++++++++++++------ 2 files changed, 36 insertions(+), 7 deletions(-) -- 2.17.2
