[PATCH v3 01/13] net/txgbe: fix swfw mbox failure

[Jiawen Wu]

There is a unknown bug that the register TXGBE_MNGMBX cannot be written
in the loop, when DPDK is built with GCC high version. Access any register
before write TXGBE_MNGMBX can fix it.

Bugzilla ID: 1531
Fixes: 35c90ecccfd4 ("net/txgbe: add EEPROM functions")
Cc: stable at dpdk.org

Signed-off-by: Jiawen Wu <jiawenwu at trustnetic.com>
---
 drivers/net/txgbe/base/txgbe_mng.c | 1 +
 1 file changed, 1 insertion(+)

diff --git a/drivers/net/txgbe/base/txgbe_mng.c b/drivers/net/txgbe/base/txgbe_mng.c
index 20db982891..7dc8f21183 100644
--- a/drivers/net/txgbe/base/txgbe_mng.c
+++ b/drivers/net/txgbe/base/txgbe_mng.c
@@ -58,6 +58,7 @@ txgbe_hic_unlocked(struct txgbe_hw *hw, u32 *buffer, u32 length, u32 timeout)
 
 	dword_len = length >> 2;
 
+	txgbe_flush(hw);
 	/* The device driver writes the relevant command block
 	 * into the ram area.
 	 */
-- 
2.27.0