diff options
| author | Amritha Nambiar <amritha.nambiar@intel.com> | 2017-09-07 14:00:32 +0300 |
|---|---|---|
| committer | Jeff Kirsher <jeffrey.t.kirsher@intel.com> | 2017-10-14 00:16:53 +0300 |
| commit | 2027d4deacb129579f022746830ea05b72fe114a (patch) | |
| tree | d0f37bc9e5a1f17b511de6e61aca84d0a85eb51a /drivers/net/ethernet/intel/i40e/i40e.h | |
| parent | 5ecae4120a6b50fb8a31d2f335eab390bcf5ad66 (diff) | |
| download | linux-2027d4deacb129579f022746830ea05b72fe114a.tar.xz | |
i40e: Add support setting TC max bandwidth rates
This patch enables setting up maximum Tx rates for the traffic
classes in i40e. The maximum rate is offloaded to the hardware through
the mqprio framework by specifying the mode option as 'channel' and
shaper option as 'bw_rlimit' and is configured for the VSI. Configuring
minimum Tx rate limit is not supported in the device. The minimum
usable value for Tx rate is 50Mbps.
Example:
# tc qdisc add dev eth0 root mqprio num_tc 2 map 0 0 0 0 1 1 1 1\
queues 4@0 4@4 hw 1 mode channel shaper bw_rlimit\
max_rate 4Gbit 5Gbit
To dump the bandwidth rates:
# tc qdisc show dev eth0
qdisc mqprio 804a: root tc 2 map 0 0 0 0 1 1 1 1 0 0 0 0 0 0 0 0
queues:(0:3) (4:7)
mode:channel
shaper:bw_rlimit max_rate:4Gbit 5Gbit
Signed-off-by: Amritha Nambiar <amritha.nambiar@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/i40e/i40e.h')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 2 |
1 files changed, 2 insertions, 0 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index 524aa06a9e0e..266e1dc5e786 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -359,6 +359,8 @@ struct i40e_channel { u8 enabled_tc; struct i40e_aqc_vsi_properties_data info; + u64 max_tx_rate; + /* track this channel belongs to which VSI */ struct i40e_vsi *parent_vsi; }; |