> -----Original Message----- > From: Thomas Monjalon [mailto:tho...@monjalon.net] > Sent: Friday, May 25, 2018 1:06 AM > To: Varghese, Vipin <vipin.vargh...@intel.com> > Cc: dev@dpdk.org; Zhang, Qi Z <qi.z.zh...@intel.com>; Kovacevic, Marko > <marko.kovace...@intel.com>; Jain, Deepak K <deepak.k.j...@intel.com>; > Yigit, Ferruh <ferruh.yi...@intel.com> > Subject: Re: [dpdk-dev] [PATCH v1] doc/eth: update document for functional > limitation > > 23/05/2018 12:05, Vipin Varghese: > > --- a/lib/librte_ethdev/rte_ethdev.h > > +++ b/lib/librte_ethdev/rte_ethdev.h > > @@ -1479,6 +1479,9 @@ int rte_eth_dev_attach(const char *devargs, > uint16_t *port_id); > > * This function must be called when the device is in the > > * closed state. > > * > > + * Note: > > + * - Currently supported for primary process only. > > I think it should be possible to attach a device in secondary process. > If it is a recent limitation, it should be in "known issues" of the release > notes.
For PCI device, we can only attached a device that is already resource mapped in primary process (for example, a device not in secondary process' white list but in primary process's) And we should not detached a device in secondary process, that will mess primary process and cause it can't be attached again. For vdev, I think we still can attached/detach a new device which does not exist in primary process. > >
