i40e/i40evf: Add ATR HW eviction support for X722

Orabug: 21764569

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 <anjali.singhai@intel.com>
Signed-off-by: Catherine Sullivan <catherine.sullivan@intel.com>
Tested-by: Jim Young <james.m.young@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
(cherry picked from commit 52eb95ef3286f10c4584c3dcb25d4be7d8e1faeb)
Signed-off-by: Brian Maly <brian.maly@oracle.com>

diff --git a/drivers/net/ethernet/intel/i40e/i40e_txrx.c b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
index 897c5b57b7ede26c818029c0109c9f458a0d8381..be9e76a9bcfd1565b0e888372903436295a97ccb 100644 (file)
--- a/drivers/net/ethernet/intel/i40e/i40e_txrx.c
+++ b/drivers/net/ethernet/intel/i40e/i40e_txrx.c
@@ -2042,6 +2042,13 @@ 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++;
 
@@ -2097,6 +2104,9 @@ 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 b93357dddb28dd97986930a3fd0f8412b2909d95..61b6b114b4bc280f272672e981fe73d588128721 100644 (file)
--- 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)