> -----Original Message----- > From: Shijith Thotton [mailto:[email protected]] > Sent: Tuesday, September 19, 2017 6:24 PM > To: [email protected] > Cc: Yigit, Ferruh <[email protected]>; Thomas Monjalon > <[email protected]>; Yang, Qiming <[email protected]>; Patil, Harish > <[email protected]>; Zhang, Helin <[email protected]>; Gregory > Etelson <[email protected]>; Tan, Jianfeng <[email protected]>; Hu, > Xuekun <[email protected]>; Li, Xiaoyun <[email protected]>; Thotton, > Shijith <[email protected]>; [email protected] > Subject: [PATCH] igb_uio: remove PCI reset during uio device open > > Issuing reset during uio device open caused PMD init failure for some NIC VFs > (i40, ixgbe, qede) in host. So this initial reset is removed. > Bus master enable is kept as part of open since we disable it in uio device > release. > > Fixes: b58eedfc7dd5 ("igb_uio: issue FLR during open and release of device > file") > Cc: [email protected] > > Signed-off-by: Shijith Thotton <[email protected]> > --- > lib/librte_eal/linuxapp/igb_uio/igb_uio.c | 4 +--- > 1 file changed, 1 insertion(+), 3 deletions(-) > > diff --git a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c > b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c > index 07a19a3..a6c2996 100644 > --- a/lib/librte_eal/linuxapp/igb_uio/igb_uio.c > +++ b/lib/librte_eal/linuxapp/igb_uio/igb_uio.c > @@ -179,9 +179,7 @@ struct rte_uio_pci_dev { > struct rte_uio_pci_dev *udev = info->priv; > struct pci_dev *dev = udev->pdev; > > - pci_reset_function(dev); > - > - /* set bus master, which was cleared by the reset function */ > + /* enable bus mastering on the device */ > pci_set_master(dev); > > return 0; > -- > 1.8.3.1
Tested-by: Qiming Yang <[email protected]> Hi, applied and tested this patch with 17.08 DPDK VF and 2.1.26 kernel PF and it fixes the problem on 10G/25G/40G.
