Messages in this thread Patch in this message | | | From | David Decotigny <> | Subject | [PATCH net-next v1 4/4] net-e1000e: Report carrier in loopback mode | Date | Mon, 21 Nov 2011 15:20:00 -0800 |
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From: Maciej Żenczykowski <zenczykowski@gmail.com>
When interface is configured in loopback mode, force carrier check positive. This is useful when interface does not have carrier and test puts the interface in loopback mode.
Tested: pktgen loopback on 80003ES2LAN
Signed-off-by: David Decotigny <david.decotigny@google.com> --- drivers/net/ethernet/intel/e1000e/phy.c | 5 +++++ 1 files changed, 5 insertions(+), 0 deletions(-)
diff --git a/drivers/net/ethernet/intel/e1000e/phy.c b/drivers/net/ethernet/intel/e1000e/phy.c index f487a7f..9476c8f 100644 --- a/drivers/net/ethernet/intel/e1000e/phy.c +++ b/drivers/net/ethernet/intel/e1000e/phy.c @@ -1781,6 +1781,11 @@ s32 e1000e_phy_has_link_generic(struct e1000_hw *hw, u32 iterations, u16 phy_reg; int good_reads_phy_status = 0; + /* If loopback is enabled, we claim the link is up */ + if ((0 == e1e_rphy(hw, PHY_CONTROL, &phy_reg)) + && (phy_reg & MII_CR_LOOPBACK)) { + *success = true; + return 0; } /* -- 1.7.3.1 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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