Before this patch, flex_filter->index was always zero when it was read
and used after rte_zmalloc. The corresponding code was therefore moved into the 
add
and delete parts of the if/else statement. i210 and i211 also support
flex filters.

Signed-off-by: Markus Theil <markus.th...@tu-ilmenau.de>
---
 drivers/net/e1000/igb_ethdev.c | 16 +++++++++++-----
 1 file changed, 11 insertions(+), 5 deletions(-)

diff --git a/drivers/net/e1000/igb_ethdev.c b/drivers/net/e1000/igb_ethdev.c
index 43d1f5f..c8b8b0c 100644
--- a/drivers/net/e1000/igb_ethdev.c
+++ b/drivers/net/e1000/igb_ethdev.c
@@ -3657,7 +3657,7 @@ eth_igb_syn_filter_handle(struct rte_eth_dev *dev,
 }
 
 #define MAC_TYPE_FILTER_SUP_EXT(type)    do {\
-       if ((type) != e1000_82580 && (type) != e1000_i350)\
+       if ((type) != e1000_82580 && (type) != e1000_i350 && (type) != 
e1000_i210 && (type) != e1000_i211)\
                return -ENOSYS; \
 } while (0)
 
@@ -3913,10 +3913,6 @@ eth_igb_add_del_flex_filter(struct rte_eth_dev *dev,
        }
 
        wufc = E1000_READ_REG(hw, E1000_WUFC);
-       if (flex_filter->index < E1000_MAX_FHFT)
-               reg_off = E1000_FHFT(flex_filter->index);
-       else
-               reg_off = E1000_FHFT_EXT(flex_filter->index - E1000_MAX_FHFT);
 
        if (add) {
                if (eth_igb_flex_filter_lookup(&filter_info->flex_list,
@@ -3946,6 +3942,11 @@ eth_igb_add_del_flex_filter(struct rte_eth_dev *dev,
                        return -ENOSYS;
                }
 
+               if (flex_filter->index < E1000_MAX_FHFT)
+                       reg_off = E1000_FHFT(flex_filter->index);
+               else
+                       reg_off = E1000_FHFT_EXT(flex_filter->index - 
E1000_MAX_FHFT);
+
                E1000_WRITE_REG(hw, E1000_WUFC, wufc | E1000_WUFC_FLEX_HQ |
                                (E1000_WUFC_FLX0 << flex_filter->index));
                queueing = filter->len |
@@ -3974,6 +3975,11 @@ eth_igb_add_del_flex_filter(struct rte_eth_dev *dev,
                        return -ENOENT;
                }
 
+               if (it->index < E1000_MAX_FHFT)
+                       reg_off = E1000_FHFT(it->index);
+               else
+                       reg_off = E1000_FHFT_EXT(it->index - E1000_MAX_FHFT);
+
                for (i = 0; i < E1000_FHFT_SIZE_IN_DWD; i++)
                        E1000_WRITE_REG(hw, reg_off + i * sizeof(uint32_t), 0);
                E1000_WRITE_REG(hw, E1000_WUFC, wufc &
-- 
2.7.4

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