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net/ixgbe: fix wrong PBA setting

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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: stable@dpdk.org

Signed-off-by: Wenzhuo Lu <wenzhuo.lu@intel.com>
Acked-by: Wei Dai <wei.dai@intel.com>
This commit is contained in:
Wenzhuo Lu 2017-11-20 11:37:45 +08:00 committed by Ferruh Yigit
parent fc7943aa02
commit 6b75183ac4
1 changed files with 1 additions and 1 deletions
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2
drivers/net/ixgbe/ixgbe_pf.c
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@ -244,7 +244,7 @@ int ixgbe_pf_host_configure(struct rte_eth_dev *eth_dev)
gpie = IXGBE_READ_REG(hw, IXGBE_GPIE); gpie = IXGBE_READ_REG(hw, IXGBE_GPIE);
gpie &= ~IXGBE_GPIE_VTMODE_MASK; 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) { switch (RTE_ETH_DEV_SRIOV(eth_dev).active) {
case ETH_64_POOLS: case ETH_64_POOLS: