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ice: Add infrastructure for mqprio support via ndo_setup_tc

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Add infrastructure required for "ndo_setup_tc:qdisc_mqprio".
ice_vsi_setup is modified to configure traffic classes based
on mqprio data received from the stack. This includes low-level
functions to configure min, max rate-limit parameters in hardware
for traffic classes. Each traffic class gets mapped to a hardware
channel (VSI) which can be individually configured with different
bandwidth parameters.

Co-developed-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Tarun Singh <tarun.k.singh@intel.com>
Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Signed-off-by: Amritha Nambiar <amritha.nambiar@intel.com>
Signed-off-by: Sudheer Mogilappagari <sudheer.mogilappagari@intel.com>
Tested-by: Bharathi Sreenivas <bharathi.sreenivas@intel.com>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
This commit is contained in:
Kiran Patil
2021-10-15 16:35:15 -07:00
committed by Tony Nguyen
parent 2641b62d2f
commit 0754d65bd4
13 changed files with 671 additions and 137 deletions
Download Patch File Download Diff File Expand all files Collapse all files

68
drivers/net/ethernet/intel/ice/ice_sched.c
View File

@@ -2998,6 +2998,43 @@ static void ice_set_clear_shared_bw(struct ice_bw_type_info *bw_t_info, u32 bw)
}
}
/**
* ice_sched_save_vsi_bw - save VSI node's BW information
* @pi: port information structure
* @vsi_handle: sw VSI handle
* @tc: traffic class
* @rl_type: rate limit type min, max, or shared
* @bw: bandwidth in Kbps - Kilo bits per sec
*
* Save BW information of VSI type node for post replay use.
*/
static int
ice_sched_save_vsi_bw(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
enum ice_rl_type rl_type, u32 bw)
{
struct ice_vsi_ctx *vsi_ctx;
if (!ice_is_vsi_valid(pi->hw, vsi_handle))
return -EINVAL;
vsi_ctx = ice_get_vsi_ctx(pi->hw, vsi_handle);
if (!vsi_ctx)
return -EINVAL;
switch (rl_type) {
case ICE_MIN_BW:
ice_set_clear_cir_bw(&vsi_ctx->sched.bw_t_info[tc], bw);
break;
case ICE_MAX_BW:
ice_set_clear_eir_bw(&vsi_ctx->sched.bw_t_info[tc], bw);
break;
case ICE_SHARED_BW:
ice_set_clear_shared_bw(&vsi_ctx->sched.bw_t_info[tc], bw);
break;
default:
return -EINVAL;
}
return 0;
}
/**
* ice_sched_calc_wakeup - calculate RL profile wakeup parameter
* @hw: pointer to the HW struct
@@ -3875,9 +3912,17 @@ enum ice_status
ice_cfg_vsi_bw_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
enum ice_rl_type rl_type, u32 bw)
{
return ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
ICE_AGG_TYPE_VSI,
tc, rl_type, bw);
int status;
status = ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
ICE_AGG_TYPE_VSI,
tc, rl_type, bw);
if (!status) {
mutex_lock(&pi->sched_lock);
status = ice_sched_save_vsi_bw(pi, vsi_handle, tc, rl_type, bw);
mutex_unlock(&pi->sched_lock);
}
return status;
}
/**
@@ -3894,10 +3939,19 @@ enum ice_status
ice_cfg_vsi_bw_dflt_lmt_per_tc(struct ice_port_info *pi, u16 vsi_handle, u8 tc,
enum ice_rl_type rl_type)
{
return ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
ICE_AGG_TYPE_VSI,
tc, rl_type,
ICE_SCHED_DFLT_BW);
int status;
status = ice_sched_set_node_bw_lmt_per_tc(pi, vsi_handle,
ICE_AGG_TYPE_VSI,
tc, rl_type,
ICE_SCHED_DFLT_BW);
if (!status) {
mutex_lock(&pi->sched_lock);
status = ice_sched_save_vsi_bw(pi, vsi_handle, tc, rl_type,
ICE_SCHED_DFLT_BW);
mutex_unlock(&pi->sched_lock);
}
return status;
}
/**