net/igb: fix flow RSS queue index

Igb has a bug about queue index for rss rule flow configuration
when set redirection table.

Fixes: 424ae915baf0 ("net/e1000: move RSS to flow API")
Cc: stable@dpdk.org
Signed-off-by: Wei Zhao <wei.zhao1@intel.com>
Tested-by: Yuan Peng <yuan.peng@intel.com>
Acked-by: Wenzhuo Lu <wenzhuo.lu@intel.com>

diff --git a/drivers/net/e1000/igb_rxtx.c b/drivers/net/e1000/igb_rxtx.c
index 2f37167..009f0ea 100644 (file)
--- a/drivers/net/e1000/igb_rxtx.c
+++ b/drivers/net/e1000/igb_rxtx.c
@@ -2794,9 +2794,9 @@ igb_config_rss_filter(struct rte_eth_dev *dev,
                } reta;
                uint8_t q_idx;
 
-               q_idx = conf->queue[j];
                if (j == conf->num)
                        j = 0;
+               q_idx = conf->queue[j];
                reta.bytes[i & 3] = (uint8_t)(q_idx << shift);
                if ((i & 3) == 3)
                        E1000_WRITE_REG(hw, E1000_RETA(i >> 2), reta.dword);