diff options
| author | Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com> | 2018-07-04 01:42:59 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2018-07-04 16:30:28 +0300 |
| commit | 3048cf84d152344f874e993558770bba73a65c8f (patch) | |
| tree | 0868b2697eef23b320c513bb5daccece9ccf477f /drivers/net/ethernet/intel/igb/igb.h | |
| parent | 1b9231e7e148520a3ba63a604b27f11093f21bee (diff) | |
| download | linux-3048cf84d152344f874e993558770bba73a65c8f.tar.xz | |
igb: Add support for ETF offload
Implement HW offload support for SO_TXTIME through igb's Launchtime
feature. This is done by extending igb_setup_tc() so it supports
TC_SETUP_QDISC_ETF and configuring i210 so time based transmit
arbitration is enabled.
The FQTSS transmission mode added before is extended so strict
priority (SP) queues wait for stream reservation (SR) ones.
igb_config_tx_modes() is extended so it can support enabling/disabling
Launchtime following the previous approach used for the credit-based
shaper (CBS).
As the previous flow, FQTSS transmission mode is enabled automatically
by the driver once Launchtime (or CBS, as before) is enabled.
Similarly, it's automatically disabled when the feature is disabled
for the last queue that had it setup on.
The driver just consumes the transmit times from the skbuffs directly,
so no special handling is done in case an 'invalid' time is provided.
We assume this has been handled by the ETF qdisc already.
Signed-off-by: Jesus Sanchez-Palencia <jesus.sanchez-palencia@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/intel/igb/igb.h')
| -rw-r--r-- | drivers/net/ethernet/intel/igb/igb.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/igb/igb.h b/drivers/net/ethernet/intel/igb/igb.h index 9643b5b3d444..ca54e268d157 100644 --- a/drivers/net/ethernet/intel/igb/igb.h +++ b/drivers/net/ethernet/intel/igb/igb.h @@ -262,6 +262,7 @@ struct igb_ring { u16 count; /* number of desc. in the ring */ u8 queue_index; /* logical index of the ring*/ u8 reg_idx; /* physical index of the ring */ + bool launchtime_enable; /* true if LaunchTime is enabled */ bool cbs_enable; /* indicates if CBS is enabled */ s32 idleslope; /* idleSlope in kbps */ s32 sendslope; /* sendSlope in kbps */ |