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| author |   Usha Ketineni <usha.k.ketineni@intel.com> | 2019-11-06 02:05:28 -0800 |
|---|---|---|
| committer |   Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2019-11-08 11:58:49 -0800 |
| commit | 1ddef455f4a8ba6374ce6a3ec88c815b3d4a4ad2 (patch) | |
| tree | afd7a9d721b6431d4594fe2c22b301e63d6078ce /drivers/net/ethernet/intel/ice/ice_sched.h | |
| parent | ice: Use ice_ena_vsi and ice_dis_vsi in DCB configuration flow (diff) | |
| download | linux-dev-1ddef455f4a8ba6374ce6a3ec88c815b3d4a4ad2.tar.xz linux-dev-1ddef455f4a8ba6374ce6a3ec88c815b3d4a4ad2.zip | |
ice: Add NDO callback to set the maximum per-queue bitrate
Allow for rate limiting Tx queues. Bitrate is set in
Mbps(megabits per second).
Mbps max-rate is set for the queue via sysfs:
/sys/class/net/<iface>/queues/tx-<queue>/tx_maxrate
ex: echo 100 >/sys/class/net/ens7/queues/tx-0/tx_maxrate
echo 200 >/sys/class/net/ens7/queues/tx-1/tx_maxrate
Note: A value of zero for tx_maxrate means disabled,
default is disabled.
Signed-off-by: Usha Ketineni <usha.k.ketineni@intel.com>
Co-developed-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_sched.h')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_sched.h | 39 |
1 files changed, 39 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_sched.h b/drivers/net/ethernet/intel/ice/ice_sched.h index 3902a8ad3025..f0593cfb6521 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.h +++ b/drivers/net/ethernet/intel/ice/ice_sched.h @@ -8,6 +8,36 @@ #define ICE_QGRP_LAYER_OFFSET 2 #define ICE_VSI_LAYER_OFFSET 4 +#define ICE_SCHED_INVAL_LAYER_NUM 0xFF +/* Burst size is a 12 bits register that is configured while creating the RL + * profile(s). MSB is a granularity bit and tells the granularity type + * 0 - LSB bits are in 64 bytes granularity + * 1 - LSB bits are in 1K bytes granularity + */ +#define ICE_64_BYTE_GRANULARITY 0 +#define ICE_KBYTE_GRANULARITY BIT(11) +#define ICE_MIN_BURST_SIZE_ALLOWED 64 /* In Bytes */ +#define ICE_MAX_BURST_SIZE_ALLOWED \ + ((BIT(11) - 1) * 1024) /* In Bytes */ +#define ICE_MAX_BURST_SIZE_64_BYTE_GRANULARITY \ + ((BIT(11) - 1) * 64) /* In Bytes */ +#define ICE_MAX_BURST_SIZE_KBYTE_GRANULARITY ICE_MAX_BURST_SIZE_ALLOWED + +#define ICE_RL_PROF_FREQUENCY 446000000 +#define ICE_RL_PROF_ACCURACY_BYTES 128 +#define ICE_RL_PROF_MULTIPLIER 10000 +#define ICE_RL_PROF_TS_MULTIPLIER 32 +#define ICE_RL_PROF_FRACTION 512 + +/* BW rate limit profile parameters list entry along + * with bandwidth maintained per layer in port info + */ +struct ice_aqc_rl_profile_info { + struct ice_aqc_rl_profile_elem profile; + struct list_head list_entry; + u32 bw; /* requested */ + u16 prof_id_ref; /* profile ID to node association ref count */ +}; struct ice_sched_agg_vsi_info { struct list_head list_entry; @@ -48,4 +78,13 @@ enum ice_status ice_sched_cfg_vsi(struct ice_port_info *pi, u16 vsi_handle, u8 tc, u16 maxqs, u8 owner, bool enable); enum ice_status ice_rm_vsi_lan_cfg(struct ice_port_info *pi, u16 vsi_handle); +enum ice_status +ice_cfg_q_bw_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc, + u16 q_handle, enum ice_rl_type rl_type, u32 bw); +enum ice_status +ice_cfg_q_bw_dflt_lmt(struct ice_port_info *pi, u16 vsi_handle, u8 tc, + u16 q_handle, enum ice_rl_type rl_type); +enum ice_status ice_cfg_rl_burst_size(struct ice_hw *hw, u32 bytes); +enum ice_status +ice_sched_replay_q_bw(struct ice_port_info *pi, struct ice_q_ctx *q_ctx); #endif /* _ICE_SCHED_H_ */ |