Hello!
On 2/9/2017 6:03 AM, Zhu Yanjun wrote:
When the ixgbe fiber transceiver is external, it is necessary to get
the present/absent status of this external ixgbe fiber transceiver.
The steps to get the present/absent status:
The enp1s0f0 is an external ixgbe fiber NIC.
ethtool enp1s0f0
...
Port: FIBRE
PHYAD: 0
Transceiver: external(present) <---The transceiver is present.
Auto-negotiation: on
Supports Wake-on: d
...
Or
...
Port: FIBRE
PHYAD: 0
Transceiver: external(absent) <---The transceiver is absent
Auto-negotiation: on
Supports Wake-on: d
...
Signed-off-by: Zhu Yanjun <yanjun....@oracle.com>
---
drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c | 15 +++++++++++++++
include/uapi/linux/ethtool.h | 4 ++++
2 files changed, 19 insertions(+)
diff --git a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
index fd192bf..b3f86f4 100644
--- a/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
+++ b/drivers/net/ethernet/intel/ixgbe/ixgbe_ethtool.c
@@ -313,6 +313,21 @@ static int ixgbe_get_settings(struct net_device *netdev,
break;
}
+ /* When the tranceiver is external, the following is meaningful.
+ * ecmd->reserved[0] has 3 values:
+ * 0x0: tranceiver absent
+ * 0x4: tranceiver present
+ * others: not support
+ */
+ if (ecmd->port == PORT_FIBRE) {
+ u32 status = IXGBE_READ_REG(hw, IXGBE_ESDP) & IXGBE_ESDP_SDP2;
+
+ if (status == 0x4)
+ ecmd->transceiver = XCVR_EXTERNAL_PRESENT;
+ if (status == 0x0)
*else* *if*. Although *switch* would match better instead...
+ ecmd->transceiver = XCVR_EXTERNAL_ABSENT;
+ }
+
/* Indicate pause support */
ecmd->supported |= SUPPORTED_Pause;
[...]
MBR, Sergei
