> -----Original Message-----
> From: dev [mailto:[email protected]] On Behalf Of Wenzhuo Lu
> Sent: Monday, November 20, 2017 11:38 AM
> To: [email protected]
> Cc: Lu, Wenzhuo <[email protected]>; [email protected]
> Subject: [dpdk-dev] [PATCH] net/ixgbe: fix VF RX hang
>
> The datasheet says, if using MSI-X mode, the PBA support bit of the GPIE
> register must be set to 1.
> DPDK uses polling mode, we cannot hit this issue in the scenario DPDK PF +
> DPDK VF. If we use DPDK PF + kernel VF, as the kernel driver uses interrpt
> mode, VF may hit RX hang after running hours.
>
> Fixes: 00e30184daa0 ("ixgbe: add PF support")
> Cc: [email protected]
>
> Signed-off-by: Wenzhuo Lu <[email protected]>
Acked-by: Wei Dai <[email protected]>
Thank you, Wenzhuo.
This bug-fix address to Rx hang after long time running.
It has also been confirmed by Intel NIC firmware team and tested by one of our
customers.
> ---
> drivers/net/ixgbe/ixgbe_pf.c | 2 +-
> 1 file changed, 1 insertion(+), 1 deletion(-)
>
> diff --git a/drivers/net/ixgbe/ixgbe_pf.c b/drivers/net/ixgbe/ixgbe_pf.c index
> 676e92c..0114694 100644
> --- a/drivers/net/ixgbe/ixgbe_pf.c
> +++ b/drivers/net/ixgbe/ixgbe_pf.c
> @@ -273,7 +273,7 @@ int ixgbe_pf_host_configure(struct rte_eth_dev
> *eth_dev)
>
> gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
> gpie &= ~IXGBE_GPIE_VTMODE_MASK;
> - gpie |= IXGBE_GPIE_MSIX_MODE;
> + gpie |= IXGBE_GPIE_MSIX_MODE | IXGBE_GPIE_PBA_SUPPORT;
>
> switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
> case ETH_64_POOLS:
> --
> 1.9.3
