qlcnic: Reset firmware API lock at driver load time

Some firmware versions fails to reset the lock during
initialization. Force reset firmware API lock during driver
probe to ensure lock availability.

Signed-off-by: Sony Chacko <sony.chacko@qlogic.com>
Signed-off-by: Shahed Shaikh <shahed.shaikh@qlogic.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

diff --git a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
index dbf75393f758a153ccecfe2a8e49edb13dc8ff9a..0bc914859e38be2c52e070edb82061fa2a6a1e48 100644 (file)
--- a/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
+++ b/drivers/net/ethernet/qlogic/qlcnic/qlcnic_main.c
@@ -2374,6 +2374,14 @@ void qlcnic_set_drv_version(struct qlcnic_adapter *adapter)
                qlcnic_fw_cmd_set_drv_version(adapter, fw_cmd);
 }
 
+/* Reset firmware API lock */
+static void qlcnic_reset_api_lock(struct qlcnic_adapter *adapter)
+{
+       qlcnic_api_lock(adapter);
+       qlcnic_api_unlock(adapter);
+}
+
+
 static int
 qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
@@ -2476,6 +2484,7 @@ qlcnic_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
        if (qlcnic_82xx_check(adapter)) {
                qlcnic_check_vf(adapter, ent);
                adapter->portnum = adapter->ahw->pci_func;
+               qlcnic_reset_api_lock(adapter);
                err = qlcnic_start_firmware(adapter);
                if (err) {
                        dev_err(&pdev->dev, "Loading fw failed.Please Reboot\n"