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| author | Sunil Goutham <sgoutham@cavium.com> | 2015-08-30 12:29:16 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2015-08-30 21:54:12 -0700 |
| commit | d77a2384988fd397cf4f71417b9d971aa435758d (patch) | |
| tree | 9fbca2f38512934f9b1a5a5fc23960bf19af777a /drivers/net/ethernet/cavium/thunder/nic.h | |
| parent | 92dc87697e6a71675a9e9eec04ebecd8cf4837a3 (diff) | |
| download | lwn-d77a2384988fd397cf4f71417b9d971aa435758d.tar.gz lwn-d77a2384988fd397cf4f71417b9d971aa435758d.zip | |
net: thunderx: Support for internal loopback mode
Support for setting VF's corresponding BGX LMAC in internal
loopback mode. This mode can be used for verifying basic HW
functionality such as packet I/O, RX checksum validation,
CQ/RBDR interrupts, stats e.t.c. Useful when DUT has no external
network connectivity.
'loopback' mode can be enabled or disabled via ethtool.
Note: This feature is not supported when no of VFs enabled are
morethan no of physical interfaces i.e active BGX LMACs
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: Aleksey Makarov <aleksey.makarov@caviumnetworks.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/nic.h')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/nic.h | 11 |
1 files changed, 11 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nic.h b/drivers/net/ethernet/cavium/thunder/nic.h index 35b2ee1bc07e..d3950b20feb9 100644 --- a/drivers/net/ethernet/cavium/thunder/nic.h +++ b/drivers/net/ethernet/cavium/thunder/nic.h @@ -265,6 +265,7 @@ struct nicvf { u8 node; u8 tns_mode:1; u8 sqs_mode:1; + u8 loopback_supported:1; u16 mtu; struct queue_set *qs; #define MAX_SQS_PER_VF_SINGLE_NODE 5 @@ -344,6 +345,7 @@ struct nicvf { #define NIC_MBOX_MSG_NICVF_PTR 0x13 /* Send nicvf ptr to PF */ #define NIC_MBOX_MSG_PNICVF_PTR 0x14 /* Get primary qset nicvf ptr */ #define NIC_MBOX_MSG_SNICVF_PTR 0x15 /* Send sqet nicvf ptr to PVF */ +#define NIC_MBOX_MSG_LOOPBACK 0x16 /* Set interface in loopback */ #define NIC_MBOX_MSG_CFG_DONE 0xF0 /* VF configuration done */ #define NIC_MBOX_MSG_SHUTDOWN 0xF1 /* VF is being shutdown */ @@ -353,6 +355,7 @@ struct nic_cfg_msg { u8 node_id; u8 tns_mode:1; u8 sqs_mode:1; + u8 loopback_supported:1; u8 mac_addr[ETH_ALEN]; }; @@ -452,6 +455,13 @@ struct nicvf_ptr { u64 nicvf; }; +/* Set interface in loopback mode */ +struct set_loopback { + u8 msg; + u8 vf_id; + bool enable; +}; + /* 128 bit shared memory between PF and each VF */ union nic_mbx { struct { u8 msg; } msg; @@ -468,6 +478,7 @@ union nic_mbx { struct bgx_link_status link_status; struct sqs_alloc sqs_alloc; struct nicvf_ptr nicvf; + struct set_loopback lbk; }; #define NIC_NODE_ID_MASK 0x03 |