Commit d5ca9905 authored by Michael Chan's avatar Michael Chan Committed by David S. Miller
Browse files

bnxt_en: Add support for fw managed link down feature. 



In the current code, the driver will not shutdown the link during
IFDOWN if there are still VFs sharing the port.  Newer firmware will
manage the link down decision when the port is shared by VFs, so
we can just call firmware to shutdown the port unconditionally and
let firmware make the final decision.

Reviewed-by: default avatarEdwin Peer <edwin.peer@broadcom.com>
Signed-off-by: default avatarMichael Chan <michael.chan@broadcom.com>
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
parent b0d28207

drivers/net/ethernet/broadcom/bnxt/bnxt.c

+2 −1
Original line number Diff line number Diff line
@@ -9495,7 +9495,8 @@ static int bnxt_hwrm_shutdown_link(struct bnxt *bp) 
	if (!BNXT_SINGLE_PF(bp))

		return 0;



	if (pci_num_vf(bp->pdev))

	if (pci_num_vf(bp->pdev) &&

	    !(bp->phy_flags & BNXT_PHY_FL_FW_MANAGED_LKDN))

		return 0;



	bnxt_hwrm_cmd_hdr_init(bp, &req, HWRM_PORT_PHY_CFG, -1, -1);

drivers/net/ethernet/broadcom/bnxt/bnxt.h

+1 −0
Original line number Diff line number Diff line
@@ -2014,6 +2014,7 @@ struct bnxt { 
#define BNXT_PHY_FL_SHARED_PORT_CFG	PORT_PHY_QCAPS_RESP_FLAGS_SHARED_PHY_CFG_SUPPORTED

#define BNXT_PHY_FL_PORT_STATS_NO_RESET	PORT_PHY_QCAPS_RESP_FLAGS_CUMULATIVE_COUNTERS_ON_RESET

#define BNXT_PHY_FL_NO_PHY_LPBK		PORT_PHY_QCAPS_RESP_FLAGS_LOCAL_LPBK_NOT_SUPPORTED

#define BNXT_PHY_FL_FW_MANAGED_LKDN	PORT_PHY_QCAPS_RESP_FLAGS_FW_MANAGED_LINK_DOWN



	u8			num_tests;

	struct bnxt_test_info	*test_info;