> -----Original Message-----
> From: Matan Azrad [mailto:[email protected]]
> Sent: Wednesday, June 27, 2018 4:29 PM
> To: Zhang, Qi Z <[email protected]>; Thomas Monjalon
> <[email protected]>; Burakov, Anatoly <[email protected]>
> Cc: Ananyev, Konstantin <[email protected]>; [email protected];
> Richardson, Bruce <[email protected]>; Yigit, Ferruh
> <[email protected]>; Shelton, Benjamin H
> <[email protected]>; Vangati, Narender
> <[email protected]>
> Subject: RE: [dpdk-dev] [PATCH v3 15/23] net/failsafe: enable port detach on
> secondary process
>
> Hi Qi
>
> From: Qi Zhang
> > Previously, detach port on secondary process will mess primary process
> > and cause same device can't be attached again, by take advantage of
> > rte_eth_release_port_private, we can support this with minor change.
> >
> > Signed-off-by: Qi Zhang <[email protected]>
>
> Failsafe doesn't support secondary process, I don't think we need this
> adjustment for drivers which don't support secondary process.
Sure, I can remove this, thanks for the information.
Regards
Qi
>
> > ---
> > drivers/net/failsafe/failsafe.c | 16 ++++++++++++++++
> > 1 file changed, 16 insertions(+)
> >
> > diff --git a/drivers/net/failsafe/failsafe.c
> > b/drivers/net/failsafe/failsafe.c index
> > eafbb75df..c5e8651f6 100644
> > --- a/drivers/net/failsafe/failsafe.c
> > +++ b/drivers/net/failsafe/failsafe.c
> > @@ -328,6 +328,7 @@ rte_pmd_failsafe_probe(struct rte_vdev_device
> *vdev)
> > }
> > /* TODO: request info from primary to set up Rx and Tx */
> > eth_dev->dev_ops = &failsafe_ops;
> > + eth_dev->device = &vdev->device;
> > rte_eth_dev_probing_finish(eth_dev);
> > return 0;
> > }
> > @@ -338,10 +339,25 @@ rte_pmd_failsafe_probe(struct rte_vdev_device
> > *vdev) static int rte_pmd_failsafe_remove(struct rte_vdev_device
> > *vdev) {
> > + struct rte_eth_dev *eth_dev;
> > const char *name;
> >
> > name = rte_vdev_device_name(vdev);
> > INFO("Uninitializing " FAILSAFE_DRIVER_NAME " for %s", name);
> > +
> > + eth_dev = rte_eth_dev_allocated(name);
> > + if (!eth_dev)
> > + return -ENODEV;
> > + if (rte_eal_process_type() != RTE_PROC_PRIMARY) {
> > + /* detach device on local pprocess only */
> > + if (strlen(rte_vdev_device_args(vdev)) == 0)
> > + return rte_eth_dev_release_port_private(eth_dev);
> > + /**
> > + * else this is a private device for current process
> > + * so continue with normal detach scenario.
> > + */
> > + }
> > +
> > return fs_rte_eth_free(name);
> > }
> >
> > --
> > 2.13.6
