> -----Original Message----- > From: dev [mailto:dev-boun...@dpdk.org] On Behalf Of Wenzhuo Lu > Sent: Monday, November 20, 2017 11:38 AM > To: dev@dpdk.org > Cc: Lu, Wenzhuo <wenzhuo...@intel.com>; sta...@dpdk.org > 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: sta...@dpdk.org > > Signed-off-by: Wenzhuo Lu <wenzhuo...@intel.com> Acked-by: Wei Dai <wei....@intel.com>
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