> -----Original Message-----
> From: Wang, Haiyue <haiyue.w...@intel.com>
> Sent: Tuesday, April 27, 2021 9:39 PM
> To: dev@dpdk.org
> Cc: Zhang, Qi Z <qi.z.zh...@intel.com>; Wang, Liang-min
> <liang-min.w...@intel.com>; david.march...@redhat.com; Wang, Haiyue
> <haiyue.w...@intel.com>; Wu, Jingjing <jingjing...@intel.com>; Xing, Beilei
> <beilei.x...@intel.com>
> Subject: [PATCH v4 2/3] net/iavf: enable PCI bus master after reset
>
> The VF reset can be triggerred by the PF reset event, in this case, the PCI
> bus
> master will be cleared, then the VF is not allowed to issue any Memory or I/O
> Requests.
>
> So after the reset event is detected, always enable the PCI bus master.
>
> Signed-off-by: Haiyue Wang <haiyue.w...@intel.com>
> ---
> drivers/net/iavf/iavf_ethdev.c | 3 +++
> 1 file changed, 3 insertions(+)
>
> diff --git a/drivers/net/iavf/iavf_ethdev.c b/drivers/net/iavf/iavf_ethdev.c
> index d523a0618..9a0a20a29 100644
> --- a/drivers/net/iavf/iavf_ethdev.c
> +++ b/drivers/net/iavf/iavf_ethdev.c
> @@ -2255,6 +2255,9 @@ iavf_dev_close(struct rte_eth_dev *dev)
> rte_free(vf->aq_resp);
> vf->aq_resp = NULL;
>
> + if (vf->vf_reset)
> + rte_pci_set_bus_master(pci_dev, true);
> +
> vf->vf_reset = false;
>
> return ret;
> --
> 2.31.1
Acked-by: Qi Zhang <qi.z.zh...@intel.com>
