diff options
Diffstat (limited to 'drivers/net/ethernet/intel/ice/ice_dcb_lib.c')
| -rw-r--r-- | drivers/net/ethernet/intel/ice/ice_dcb_lib.c | 84 |
1 files changed, 73 insertions, 11 deletions
diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c index 7108fb41b604..7bea09363b42 100644 --- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c +++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c @@ -63,6 +63,26 @@ u8 ice_dcb_get_ena_tc(struct ice_dcbx_cfg *dcbcfg) } /** + * ice_dcb_get_mode - gets the DCB mode + * @port_info: pointer to port info structure + * @host: if set it's HOST if not it's MANAGED + */ +static u8 ice_dcb_get_mode(struct ice_port_info *port_info, bool host) +{ + u8 mode; + + if (host) + mode = DCB_CAP_DCBX_HOST; + else + mode = DCB_CAP_DCBX_LLD_MANAGED; + + if (port_info->local_dcbx_cfg.dcbx_mode & ICE_DCBX_MODE_CEE) + return mode | DCB_CAP_DCBX_VER_CEE; + else + return mode | DCB_CAP_DCBX_VER_IEEE; +} + +/** * ice_dcb_get_num_tc - Get the number of TCs from DCBX config * @dcbcfg: config to retrieve number of TCs from */ @@ -149,6 +169,43 @@ void ice_vsi_cfg_dcb_rings(struct ice_vsi *vsi) } /** + * ice_dcb_bwchk - check if ETS bandwidth input parameters are correct + * @pf: pointer to the PF struct + * @dcbcfg: pointer to DCB config structure + */ +int ice_dcb_bwchk(struct ice_pf *pf, struct ice_dcbx_cfg *dcbcfg) +{ + struct ice_dcb_ets_cfg *etscfg = &dcbcfg->etscfg; + u8 num_tc, total_bw = 0; + int i; + + /* returns number of contigous TCs and 1 TC for non-contigous TCs, + * since at least 1 TC has to be configured + */ + num_tc = ice_dcb_get_num_tc(dcbcfg); + + /* no bandwidth checks required if there's only one TC, so assign + * all bandwidth to TC0 and return + */ + if (num_tc == 1) { + etscfg->tcbwtable[0] = ICE_TC_MAX_BW; + return 0; + } + + for (i = 0; i < num_tc; i++) + total_bw += etscfg->tcbwtable[i]; + + if (!total_bw) { + etscfg->tcbwtable[0] = ICE_TC_MAX_BW; + } else if (total_bw != ICE_TC_MAX_BW) { + dev_err(ice_pf_to_dev(pf), "Invalid config, total bandwidth must equal 100\n"); + return -EINVAL; + } + + return 0; +} + +/** * ice_pf_dcb_cfg - Apply new DCB configuration * @pf: pointer to the PF struct * @new_cfg: DCBX config to apply @@ -182,6 +239,9 @@ int ice_pf_dcb_cfg(struct ice_pf *pf, struct ice_dcbx_cfg *new_cfg, bool locked) return ret; } + if (ice_dcb_bwchk(pf, new_cfg)) + return -EINVAL; + /* Store old config in case FW config fails */ old_cfg = kmemdup(curr_cfg, sizeof(*old_cfg), GFP_KERNEL); if (!old_cfg) @@ -605,14 +665,14 @@ int ice_init_pf_dcb(struct ice_pf *pf, bool locked) ice_cfg_sw_lldp(pf_vsi, false, true); - pf->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE; + pf->dcbx_cap = ice_dcb_get_mode(port_info, true); return 0; } set_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags); - /* DCBX in FW and LLDP enabled in FW */ - pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_IEEE; + /* DCBX/LLDP enabled in FW, set DCBNL mode advertisement */ + pf->dcbx_cap = ice_dcb_get_mode(port_info, false); err = ice_dcb_init_cfg(pf, locked); if (err) @@ -719,7 +779,7 @@ ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, bool need_reconfig = false; struct ice_port_info *pi; struct ice_vsi *pf_vsi; - u8 type; + u8 mib_type; int ret; /* Not DCB capable or capability disabled */ @@ -734,16 +794,16 @@ ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, pi = pf->hw.port_info; mib = (struct ice_aqc_lldp_get_mib *)&event->desc.params.raw; /* Ignore if event is not for Nearest Bridge */ - type = ((mib->type >> ICE_AQ_LLDP_BRID_TYPE_S) & - ICE_AQ_LLDP_BRID_TYPE_M); - dev_dbg(dev, "LLDP event MIB bridge type 0x%x\n", type); - if (type != ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID) + mib_type = ((mib->type >> ICE_AQ_LLDP_BRID_TYPE_S) & + ICE_AQ_LLDP_BRID_TYPE_M); + dev_dbg(dev, "LLDP event MIB bridge type 0x%x\n", mib_type); + if (mib_type != ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID) return; /* Check MIB Type and return if event for Remote MIB update */ - type = mib->type & ICE_AQ_LLDP_MIB_TYPE_M; - dev_dbg(dev, "LLDP event mib type %s\n", type ? "remote" : "local"); - if (type == ICE_AQ_LLDP_MIB_REMOTE) { + mib_type = mib->type & ICE_AQ_LLDP_MIB_TYPE_M; + dev_dbg(dev, "LLDP event mib type %s\n", mib_type ? "remote" : "local"); + if (mib_type == ICE_AQ_LLDP_MIB_REMOTE) { /* Update the remote cached instance and return */ ret = ice_aq_get_dcb_cfg(pi->hw, ICE_AQ_LLDP_MIB_REMOTE, ICE_AQ_LLDP_BRID_TYPE_NEAREST_BRID, @@ -775,6 +835,8 @@ ice_dcb_process_lldp_set_mib_change(struct ice_pf *pf, goto out; } + pf->dcbx_cap = ice_dcb_get_mode(pi, false); + need_reconfig = ice_dcb_need_recfg(pf, &tmp_dcbx_cfg, &pi->local_dcbx_cfg); ice_dcbnl_flush_apps(pf, &tmp_dcbx_cfg, &pi->local_dcbx_cfg); |