[dpdk-dev] [v3] net/i40e: fix SFP X722 not work with FW4.16

[Xiao Zhang]

set_switch_config adminq operation was used to set TPID for SFP X722
with FW4.16, but adminq is not supported which lead to failure. Since
all FW versions of SFP X722 do not support adminq, disable adminq flag
to use resigter setting to make it work.

Fixes: 73cd7d6dc8e1 ("net/i40e: use set switch AQ instead of register
setting")
Cc: stable at dpdk.org

Signed-off-by: Xiao Zhang <xiao.zhang at intel.com>
---
v3
Modify the commit log to make it not confused and add fixed line.
v2
Unset adminq flag instead of only checking device id when set TPID.
v1
Check device id when setting TPID, use adminq if not SFP X722, else 
use register.
---
 drivers/net/i40e/i40e_ethdev.c | 4 ++++
 1 file changed, 4 insertions(+)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 2b9fc45..2b2c877 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1358,6 +1358,10 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 		PMD_INIT_LOG(ERR, "Failed to init adminq: %d", ret);
 		return -EIO;
 	}
+	/* Firmware of SFP x722 does not support adminq option */
+	if (hw->device_id == I40E_DEV_ID_SFP_X722)
+		hw->flags &= ~I40E_HW_FLAG_802_1AD_CAPABLE;
+
 	PMD_INIT_LOG(INFO, "FW %d.%d API %d.%d NVM %02d.%02d.%02d eetrack %04x",
 		     hw->aq.fw_maj_ver, hw->aq.fw_min_ver,
 		     hw->aq.api_maj_ver, hw->aq.api_min_ver,
-- 
2.7.4