diff options
| author | Sunil Goutham <sgoutham@cavium.com> | 2016-11-15 17:37:36 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2016-11-16 13:28:33 -0500 |
| commit | 712c3185344050c591d78584542bd945e4f6f778 (patch) | |
| tree | ce9261287883d127ed3de07d2d55b934fc52ff66 /drivers/net/ethernet/cavium/thunder/nic_reg.h | |
| parent | 612e94bd99912f3b2ac616c00c3dc7f166a98005 (diff) | |
net: thunderx: Program LMAC credits based on MTU
Programming LMAC credits taking 9K frame size by default is incorrect
as for an interface which is one of the many on the same BGX/QLM
no of credits available will be less as Tx FIFO will be divided
across all interfaces. So let's say a BGX with 40G interface and another
BGX with multiple 10G, bandwidth of 10G interfaces will be effected when
traffic is running on both 40G and 10G interfaces simultaneously.
This patch fixes this issue by programming credits based on netdev's MTU.
Also fixed configuring MTU to HW and added CQE counter for pkts which
exceed this value.
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/nic_reg.h')
| -rw-r--r-- | drivers/net/ethernet/cavium/thunder/nic_reg.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/cavium/thunder/nic_reg.h b/drivers/net/ethernet/cavium/thunder/nic_reg.h index edf779f5a227..80d46337cf29 100644 --- a/drivers/net/ethernet/cavium/thunder/nic_reg.h +++ b/drivers/net/ethernet/cavium/thunder/nic_reg.h @@ -106,6 +106,7 @@ #define NIC_PF_MPI_0_2047_CFG (0x210000) #define NIC_PF_RSSI_0_4097_RQ (0x220000) #define NIC_PF_LMAC_0_7_CFG (0x240000) +#define NIC_PF_LMAC_0_7_CFG2 (0x240100) #define NIC_PF_LMAC_0_7_SW_XOFF (0x242000) #define NIC_PF_LMAC_0_7_CREDIT (0x244000) #define NIC_PF_CHAN_0_255_TX_CFG (0x400000) |