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net/igb: store and restore TCP SYN filter

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Add support for storing and restoring TCP SYN filter in SW.

Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
This commit is contained in:
Wei Zhao 2017-06-12 14:48:18 +08:00 committed by Ferruh Yigit
parent f544804f4b
commit 7db41ec827
2 changed files with 44 additions and 3 deletions
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2
drivers/net/e1000/e1000_ethdev.h
View File

@ -252,6 +252,8 @@ struct e1000_filter_info {
/* Bit mask for every used 2tuple filter */
uint8_t twotuple_mask;
struct e1000_2tuple_filter_list twotuple_list;
/* store the SYN filter info */
uint32_t syn_info;
};
/*

45
drivers/net/e1000/igb_ethdev.c
View File

@ -291,6 +291,7 @@ static void eth_igb_write_ivar(struct e1000_hw *hw, uint8_t msix_vector,
static void eth_igb_configure_msix_intr(struct rte_eth_dev *dev);
static void eth_igbvf_interrupt_handler(void *param);
static void igbvf_mbx_process(struct rte_eth_dev *dev);
static int igb_filter_restore(struct rte_eth_dev *dev);
/*
* Define VF Stats MACRO for Non "cleared on read" register
@ -906,12 +907,13 @@ eth_igb_dev_init(struct rte_eth_dev *eth_dev)
/* enable support intr */
igb_intr_enable(eth_dev);
/* initialize filter info */
memset(filter_info, 0,
sizeof(struct e1000_filter_info));
TAILQ_INIT(&filter_info->flex_list);
filter_info->flex_mask = 0;
TAILQ_INIT(&filter_info->twotuple_list);
filter_info->twotuple_mask = 0;
TAILQ_INIT(&filter_info->fivetuple_list);
filter_info->fivetuple_mask = 0;
return 0;
@ -929,6 +931,8 @@ eth_igb_dev_uninit(struct rte_eth_dev *eth_dev)
struct e1000_hw *hw;
struct e1000_adapter *adapter =
E1000_DEV_PRIVATE(eth_dev->data->dev_private);
struct e1000_filter_info *filter_info =
E1000_DEV_PRIVATE_TO_FILTER_INFO(eth_dev->data->dev_private);
PMD_INIT_FUNC_TRACE();
@ -960,6 +964,9 @@ eth_igb_dev_uninit(struct rte_eth_dev *eth_dev)
rte_intr_callback_unregister(intr_handle,
eth_igb_interrupt_handler, eth_dev);
/* clear the SYN filter info */
filter_info->syn_info = 0;
return 0;
}
@ -1438,6 +1445,9 @@ eth_igb_start(struct rte_eth_dev *dev)
/* resume enabled intr since hw reset */
igb_intr_enable(dev);
/* restore all types filter */
igb_filter_restore(dev);
PMD_INIT_LOG(DEBUG, "<<");
return 0;
@ -3562,6 +3572,8 @@ eth_igb_syn_filter_set(struct rte_eth_dev *dev,
bool add)
{
struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct e1000_filter_info *filter_info =
E1000_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
uint32_t synqf, rfctl;
if (filter->queue >= IGB_MAX_RX_QUEUE_NUM)
@ -3589,6 +3601,7 @@ eth_igb_syn_filter_set(struct rte_eth_dev *dev,
synqf = 0;
}
filter_info->syn_info = synqf;
E1000_WRITE_REG(hw, E1000_SYNQF(0), synqf);
E1000_WRITE_FLUSH(hw);
return 0;
@ -5426,6 +5439,32 @@ eth_igb_configure_msix_intr(struct rte_eth_dev *dev)
E1000_WRITE_FLUSH(hw);
}
/* restore SYN filter */
static inline void
igb_syn_filter_restore(struct rte_eth_dev *dev)
{
struct e1000_hw *hw = E1000_DEV_PRIVATE_TO_HW(dev->data->dev_private);
struct e1000_filter_info *filter_info =
E1000_DEV_PRIVATE_TO_FILTER_INFO(dev->data->dev_private);
uint32_t synqf;
synqf = filter_info->syn_info;
if (synqf & E1000_SYN_FILTER_ENABLE) {
E1000_WRITE_REG(hw, E1000_SYNQF(0), synqf);
E1000_WRITE_FLUSH(hw);
}
}
/* restore all types filter */
static int
igb_filter_restore(struct rte_eth_dev *dev)
{
igb_syn_filter_restore(dev);
return 0;
}
RTE_PMD_REGISTER_PCI(net_e1000_igb, rte_igb_pmd);
RTE_PMD_REGISTER_PCI_TABLE(net_e1000_igb, pci_id_igb_map);
RTE_PMD_REGISTER_KMOD_DEP(net_e1000_igb, "* igb_uio | uio_pci_generic | vfio-pci");