> -----Original Message----- > From: Jiang, Cheng1 <[email protected]> > Sent: Wednesday, March 17, 2021 1:41 PM > To: [email protected]; Xia, Chenbo <[email protected]> > Cc: [email protected]; Hu, Jiayu <[email protected]>; Yang, YvonneX > <[email protected]>; Wang, Yinan <[email protected]>; Jiang, Cheng1 > <[email protected]>; [email protected] > Subject: [PATCH] examples/vhost: fix ioat ring space in callbacks > > We use ioat ring space for determining if ioat callbacks can enqueue a > packet to ioat device. But there is one slot can't be used in ioat > ring due to the ioat driver design, so we need to reduce one slot in > ioat ring to prevent ring size mismatch in ioat callbacks. > > Fixes: 2aa47e94bfb2 ("examples/vhost: add ioat ring space count and check") > Cc: [email protected] > > Signed-off-by: Cheng Jiang <[email protected]> > --- > examples/vhost/ioat.c | 2 +- > 1 file changed, 1 insertion(+), 1 deletion(-) > > diff --git a/examples/vhost/ioat.c b/examples/vhost/ioat.c > index 60b73be93..9cb5e0d50 100644 > --- a/examples/vhost/ioat.c > +++ b/examples/vhost/ioat.c > @@ -113,7 +113,7 @@ open_ioat(const char *value) > goto out; > } > rte_rawdev_start(dev_id); > - cb_tracker[dev_id].ioat_space = IOAT_RING_SIZE; > + cb_tracker[dev_id].ioat_space = IOAT_RING_SIZE - 1; > dma_info->nr++; > i++; > } > -- > 2.29.2
Patch applied to next-virtio/main, Thanks
