i40e: Add debugfs hooks to print current total FD filter count

"fd current cnt" can be used to print the total filters consumed
by this interface, this includes guaranteed and best effort filters.

Change-ID: I2c417810c4999ce1388d2ea26f8e69679ba33966
Signed-off-by: NAnjali Singhai Jain <anjali.singhai@intel.com>
Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>

drivers/net/ethernet/intel/i40e/i40e_debugfs.c

@@ -1743,6 +1743,9 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, false);
 	} else if (strncmp(cmd_buf, "fd-atr on", 9) == 0) {
 		i40e_dbg_cmd_fd_ctrl(pf, I40E_FLAG_FD_ATR_ENABLED, true);
+	} else if (strncmp(cmd_buf, "fd current cnt", 14) == 0) {
+		dev_info(&pf->pdev->dev, "FD current total filter count for this interface: %d\n",
+			 i40e_get_current_fd_count(pf));
 	} else if (strncmp(cmd_buf, "lldp", 4) == 0) {
 		if (strncmp(&cmd_buf[5], "stop", 4) == 0) {
 			int ret;
@@ -1962,6 +1965,7 @@ static ssize_t i40e_dbg_command_write(struct file *filp,
 		dev_info(&pf->pdev->dev, "  rem fd_filter <dest q_index> <flex_off> <pctype> <dest_vsi> <dest_ctl> <fd_status> <cnt_index> <fd_id> <packet_len> <packet>\n");
 		dev_info(&pf->pdev->dev, "  fd-atr off\n");
 		dev_info(&pf->pdev->dev, "  fd-atr on\n");
+		dev_info(&pf->pdev->dev, "  fd current cnt");
 		dev_info(&pf->pdev->dev, "  lldp start\n");
 		dev_info(&pf->pdev->dev, "  lldp stop\n");
 		dev_info(&pf->pdev->dev, "  lldp get local\n");