> -----Original Message----- > From: Yuan Wang <yuanx.w...@intel.com> > Sent: Wednesday, June 1, 2022 10:26 PM > To: maxime.coque...@redhat.com; Xia, Chenbo <chenbo....@intel.com>; > dev@dpdk.org > Cc: Hu, Jiayu <jiayu...@intel.com>; He, Xingguang > <xingguang...@intel.com>; Wang, YuanX <yuanx.w...@intel.com>; > sta...@dpdk.org > Subject: [PATCH] net/vhost: add flag to control wait queuing > > update_queuing_status prevents PMD queue operations from affecting the > data plane by waiting for rx/tx_pkt_burst to stops accessing the vhost device. > In fact, it is only necessary to wait when destroy/stop the device, new/start > device and vring_state_changed cases do not need. > > Since vring is locked when vring state changes, unconditional waiting may > also cause deadlocks. > > To avoid deadlocks and unnecessary waiting, this patch adds a flag to control > whether waiting is required. > > Fixes: 9dc6bb0682 (net/vhost: fix access to freed memory) > Fixes: 1ce3c7fe14 (net/vhost: emulate device start/stop behavior) > Cc: sta...@dpdk.org > > Signed-off-by: Yuan Wang <yuanx.w...@intel.com> > ---
Tested-by: Wei Ling <weix.l...@intel.com>
