diff options
| author | Sunil Goutham <sgoutham@cavium.com> | 2017-07-27 12:53:04 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-07-29 14:17:07 -0700 |
| commit | 500268e9f28de972514de89a5a1b4106d0417989 (patch) | |
| tree | ceb42e7d5379a93854e44624b1d48eb1a2eed078 /drivers/net/ethernet/cavium/thunder/thunder_bgx.h | |
| parent | 8d65843c44269c21e95c98090d9bb4848d473853 (diff) | |
net: thunderx: Fix BGX transmit stall due to underflow
For SGMII/RGMII/QSGMII interfaces when physical link goes down
while traffic is high is resulting in underflow condition being set
on that specific BGX's LMAC. Which assets a backpresure and VNIC stops
transmitting packets.
This is due to BGX being disabled in link status change callback while
packet is in transit. This patch fixes this issue by not disabling BGX
but instead just disables packet Rx and Tx.
Signed-off-by: Sunil Goutham <sgoutham@cavium.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/cavium/thunder/thunder_bgx.h')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/thunder_bgx.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h index 6b7fe6fdd13b..23acdc5ab896 100644 --- a/drivers/net/ethernet/cavium/thunder/thunder_bgx.h +++ b/drivers/net/ethernet/cavium/thunder/thunder_bgx.h @@ -170,6 +170,8 @@ #define GMI_PORT_CFG_DUPLEX BIT_ULL(2) #define GMI_PORT_CFG_SLOT_TIME BIT_ULL(3) #define GMI_PORT_CFG_SPEED_MSB BIT_ULL(8) +#define GMI_PORT_CFG_RX_IDLE BIT_ULL(12) +#define GMI_PORT_CFG_TX_IDLE BIT_ULL(13) #define BGX_GMP_GMI_RXX_JABBER 0x38038 #define BGX_GMP_GMI_TXX_THRESH 0x38210 #define BGX_GMP_GMI_TXX_APPEND 0x38218 |