[dpdk-dev] [PATCH] net/i40e: firmware status check

[Xiaoyun Li]

Check the firmware status at init time. If the status is abnormal,
alert the user to exit DPDK.

Signed-off-by: Xiaoyun Li <xiaoyun.li at intel.com>
---
 drivers/net/i40e/i40e_ethdev.c | 10 +++++++++-
 1 file changed, 9 insertions(+), 1 deletion(-)

diff --git a/drivers/net/i40e/i40e_ethdev.c b/drivers/net/i40e/i40e_ethdev.c
index 13c5d32..c1c19d3 100644
--- a/drivers/net/i40e/i40e_ethdev.c
+++ b/drivers/net/i40e/i40e_ethdev.c
@@ -1192,7 +1192,7 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 	struct i40e_hw *hw = I40E_DEV_PRIVATE_TO_HW(dev->data->dev_private);
 	struct i40e_vsi *vsi;
 	int ret;
-	uint32_t len;
+	uint32_t len, val;
 	uint8_t aq_fail = 0;
 
 	PMD_INIT_FUNC_TRACE();
@@ -1236,6 +1236,14 @@ eth_i40e_dev_init(struct rte_eth_dev *dev, void *init_params __rte_unused)
 	hw->bus.func = pci_dev->addr.function;
 	hw->adapter_stopped = 0;
 
+	val = I40E_READ_REG(hw, I40E_GL_FWSTS);
+	if (val & I40E_GL_FWSTS_FWS1B_MASK) {
+		PMD_INIT_LOG(ERR, "\nERROR:"
+				  " Firmware status of this driver is abnormal."
+				  " Please quit the app.");
+		return -EIO;
+	}
+
 	/* Check if need to support multi-driver */
 	i40e_support_multi_driver(dev);
 
-- 
2.7.4