net/bnxt: support WC TCAM management

[dpdk.git] / drivers / net / ixgbe / ixgbe_fdir.c

diff --git a/drivers/net/ixgbe/ixgbe_fdir.c b/drivers/net/ixgbe/ixgbe_fdir.c
index a0fab50..27a49bb 100644 (file)
--- a/drivers/net/ixgbe/ixgbe_fdir.c
+++ b/drivers/net/ixgbe/ixgbe_fdir.c
@@ -13,7 +13,7 @@
 #include <rte_debug.h>
 #include <rte_pci.h>
 #include <rte_vxlan.h>
-#include <rte_ethdev_driver.h>
+#include <ethdev_driver.h>
 #include <rte_malloc.h>
 
 #include "ixgbe_logs.h"
@@ -503,9 +503,30 @@ ixgbe_fdir_set_flexbytes_offset(struct rte_eth_dev *dev,
                                uint16_t offset)
 {
        struct ixgbe_hw *hw = IXGBE_DEV_PRIVATE_TO_HW(dev->data->dev_private);
+       struct ixgbe_hw_fdir_info *fdir_info =
+               IXGBE_DEV_PRIVATE_TO_FDIR_INFO(dev->data->dev_private);
        uint32_t fdirctrl;
        int i;
 
+       if (fdir_info->flex_bytes_offset == offset)
+               return 0;
+
+       /**
+        * 82599 adapters flow director init flow cannot be restarted,
+        * Workaround 82599 silicon errata by performing the following steps
+        * before re-writing the FDIRCTRL control register with the same value.
+        * - write 1 to bit 8 of FDIRCMD register &
+        * - write 0 to bit 8 of FDIRCMD register
+        */
+       IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
+                       (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) |
+                        IXGBE_FDIRCMD_CLEARHT));
+       IXGBE_WRITE_FLUSH(hw);
+       IXGBE_WRITE_REG(hw, IXGBE_FDIRCMD,
+                       (IXGBE_READ_REG(hw, IXGBE_FDIRCMD) &
+                        ~IXGBE_FDIRCMD_CLEARHT));
+       IXGBE_WRITE_FLUSH(hw);
+
        fdirctrl = IXGBE_READ_REG(hw, IXGBE_FDIRCTRL);
 
        fdirctrl &= ~IXGBE_FDIRCTRL_FLEX_MASK;
@@ -520,6 +541,14 @@ ixgbe_fdir_set_flexbytes_offset(struct rte_eth_dev *dev,
                        break;
                msec_delay(1);
        }
+
+       if (i >= IXGBE_FDIR_INIT_DONE_POLL) {
+               PMD_DRV_LOG(ERR, "Flow Director poll time exceeded!");
+               return -ETIMEDOUT;
+       }
+
+       fdir_info->flex_bytes_offset = offset;
+
        return 0;
 }