[PATCH v6 06/18] net/ixgbe: restore TCP SYN filter
From: Wei Zhao <hidden>
Date: 2017-01-13 08:17:55
Subsystem:
networking drivers, the rest · Maintainers:
Andrew Lunn, "David S. Miller", Eric Dumazet, Jakub Kicinski, Paolo Abeni, Linus Torvalds
Add support for restoring TCP SYN filter in SW. Signed-off-by: Wenzhuo Lu <redacted> Signed-off-by: Wei Zhao <redacted> --- drivers/net/ixgbe/ixgbe_ethdev.c | 18 ++++++++++++++++++ 1 file changed, 18 insertions(+)
diff --git a/drivers/net/ixgbe/ixgbe_ethdev.c b/drivers/net/ixgbe/ixgbe_ethdev.c
index 6c46354..6cd5975 100644
--- a/drivers/net/ixgbe/ixgbe_ethdev.c
+++ b/drivers/net/ixgbe/ixgbe_ethdev.c@@ -7945,11 +7945,29 @@ ixgbe_ethertype_filter_restore(struct rte_eth_dev *dev) } } +/* restore SYN filter */ +static inline void +ixgbe_syn_filter_restore(struct rte_eth_dev *dev) +{ + struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private); + struct ixgbe_filter_info *filter_info = + IXGBE_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private); + uint32_t synqf; + + synqf = filter_info->syn_info; + + if (synqf & IXGBE_SYN_FILTER_ENABLE) { + IXGBE_WRITE_REG(hw, IXGBE_SYNQF, synqf); + IXGBE_WRITE_FLUSH(hw); + } +} + static int ixgbe_filter_restore(struct rte_eth_dev *dev) { ixgbe_ntuple_filter_restore(dev); ixgbe_ethertype_filter_restore(dev); + ixgbe_syn_filter_restore(dev); return 0; }
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2.5.5