From 0754d65bd4be5bb7392aa59339a290c80346a93c Mon Sep 17 00:00:00 2001 From: Kiran Patil Date: Fri, 15 Oct 2021 16:35:15 -0700 Subject: ice: Add infrastructure for mqprio support via ndo_setup_tc 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 Signed-off-by: Tarun Singh Signed-off-by: Kiran Patil Signed-off-by: Amritha Nambiar Signed-off-by: Sudheer Mogilappagari Tested-by: Bharathi Sreenivas Signed-off-by: Tony Nguyen --- drivers/net/ethernet/intel/ice/ice_sched.c | 68 +++++++++++++++++++++++++++--- 1 file changed, 61 insertions(+), 7 deletions(-) (limited to 'drivers/net/ethernet/intel/ice/ice_sched.c') diff --git a/drivers/net/ethernet/intel/ice/ice_sched.c b/drivers/net/ethernet/intel/ice/ice_sched.c index 560e52b99f83..fe36c3b5eb4c 100644 --- a/drivers/net/ethernet/intel/ice/ice_sched.c +++ b/drivers/net/ethernet/intel/ice/ice_sched.c @@ -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; } /** -- cgit