[PATCH net-next 2/4] bnxt_en: Shutdown link when device is closed.

[Michael Chan]

Let firmware know that the driver is giving up control of the link so that
it can be shutdown if no management firmware is running.

Signed-off-by: Michael Chan <michael.c...@broadcom.com>
---
 drivers/net/ethernet/broadcom/bnxt/bnxt.c | 16 ++++++++++++++++
 1 file changed, 16 insertions(+)

diff --git a/drivers/net/ethernet/broadcom/bnxt/bnxt.c 
b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
index a06dcaa..e874a56 100644
--- a/drivers/net/ethernet/broadcom/bnxt/bnxt.c
+++ b/drivers/net/ethernet/broadcom/bnxt/bnxt.c
@@ -4790,6 +4790,21 @@ int bnxt_hwrm_set_link_setting(struct bnxt *bp, bool 
set_pause, bool set_eee)
        return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
 }
 
+static int bnxt_hwrm_shutdown_link(struct bnxt *bp)
+{
+       struct hwrm_port_phy_cfg_input req = {0};
+
+       if (BNXT_VF(bp))
+               return 0;
+
+       if (pci_num_vf(bp->pdev))
+               return 0;
+
+       bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);
+       req.flags = cpu_to_le32(PORT_PHY_CFG_REQ_FLAGS_FORCE_LINK_DOWN);
+       return hwrm_send_message(bp, &req, sizeof(req), HWRM_CMD_TIMEOUT);
+}
+
 static bool bnxt_eee_config_ok(struct bnxt *bp)
 {
        struct ethtool_eee *eee = &bp->eee;
@@ -5044,6 +5059,7 @@ static int bnxt_close(struct net_device *dev)
        struct bnxt *bp = netdev_priv(dev);
 
        bnxt_close_nic(bp, true, true);
+       bnxt_hwrm_shutdown_link(bp);
        return 0;
 }
 
-- 
1.8.3.1