From 52eb95ef3286f10c4584c3dcb25d4be7d8e1faeb Mon Sep 17 00:00:00 2001 From: Anjali Singhai Jain Date: Fri, 5 Jun 2015 12:20:33 -0400 Subject: [PATCH] i40e/i40evf: Add ATR HW eviction support for X722 X722 supports evicting ATR filters in the HW. With this patch, we enable the feature in the driver and avoid filter deletion by the driver. Signed-off-by: Anjali Singhai Jain Signed-off-by: Catherine Sullivan Tested-by: Jim Young Signed-off-by: Jeff Kirsher --- drivers/net/ethernet/intel/i40e/i40e_txrx.c | 10 ++++++++++ drivers/net/ethernet/intel/i40e/i40e_type.h | 4 ++++ 2 files changed, 14 insertions(+) diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c index 57dc5d2..738aca6 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c +++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c @@ -2040,6 +2040,13 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb, /* Due to lack of space, no more new filters can be programmed */ if (th->syn && (pf->auto_disable_flags & I40E_FLAG_FD_ATR_ENABLED)) return; + if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE) { + /* HW ATR eviction will take care of removing filters on FIN + * and RST packets. + */ + if (th->fin || th->rst) + return; + } tx_ring->atr_count++; @@ -2095,6 +2102,9 @@ static void i40e_atr(struct i40e_ring *tx_ring, struct sk_buff *skb, I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) & I40E_TXD_FLTR_QW1_CNTINDEX_MASK; + if (pf->flags & I40E_FLAG_HW_ATR_EVICT_CAPABLE) + dtype_cmd |= I40E_TXD_FLTR_QW1_ATR_MASK; + fdir_desc->qindex_flex_ptype_vsi = cpu_to_le32(flex_ptype); fdir_desc->rsvd = cpu_to_le32(0); fdir_desc->dtype_cmd_cntindex = cpu_to_le32(dtype_cmd); diff --git a/drivers/net/ethernet/intel/i40e/i40e_type.h b/drivers/net/ethernet/intel/i40e/i40e_type.h index b93357d..61b6b11 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_type.h +++ b/drivers/net/ethernet/intel/i40e/i40e_type.h @@ -1049,6 +1049,10 @@ enum i40e_filter_program_desc_pcmd { #define I40E_TXD_FLTR_QW1_FD_STATUS_MASK (0x3ULL << \ I40E_TXD_FLTR_QW1_FD_STATUS_SHIFT) +#define I40E_TXD_FLTR_QW1_ATR_SHIFT (0xEULL + \ + I40E_TXD_FLTR_QW1_CMD_SHIFT) +#define I40E_TXD_FLTR_QW1_ATR_MASK BIT_ULL(I40E_TXD_FLTR_QW1_ATR_SHIFT) + #define I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT 20 #define I40E_TXD_FLTR_QW1_CNTINDEX_MASK (0x1FFUL << \ I40E_TXD_FLTR_QW1_CNTINDEX_SHIFT) -- 2.7.4