1037 lines
28 KiB
C
1037 lines
28 KiB
C
// SPDX-License-Identifier: GPL-2.0
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/* Copyright(c) 2013 - 2021 Intel Corporation. */
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#ifdef CONFIG_I40E_DCB
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#include "i40e.h"
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#include <net/dcbnl.h>
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#define I40E_DCBNL_STATUS_SUCCESS 0
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#define I40E_DCBNL_STATUS_ERROR 1
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static bool i40e_dcbnl_find_app(struct i40e_dcbx_config *cfg,
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struct i40e_dcb_app_priority_table *app);
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/**
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* i40e_get_pfc_delay - retrieve PFC Link Delay
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* @hw: pointer to hardware struct
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* @delay: holds the PFC Link delay value
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*
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* Returns PFC Link Delay from the PRTDCB_GENC.PFCLDA
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**/
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static void i40e_get_pfc_delay(struct i40e_hw *hw, u16 *delay)
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{
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u32 val;
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val = rd32(hw, I40E_PRTDCB_GENC);
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*delay = (u16)((val & I40E_PRTDCB_GENC_PFCLDA_MASK) >>
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I40E_PRTDCB_GENC_PFCLDA_SHIFT);
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}
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/**
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* i40e_dcbnl_ieee_getets - retrieve local IEEE ETS configuration
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* @dev: the corresponding netdev
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* @ets: structure to hold the ETS information
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*
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* Returns local IEEE ETS configuration
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**/
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static int i40e_dcbnl_ieee_getets(struct net_device *dev,
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struct ieee_ets *ets)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(dev);
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struct i40e_dcbx_config *dcbxcfg;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
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return -EINVAL;
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dcbxcfg = &pf->hw.local_dcbx_config;
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ets->willing = dcbxcfg->etscfg.willing;
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ets->ets_cap = I40E_MAX_TRAFFIC_CLASS;
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ets->cbs = dcbxcfg->etscfg.cbs;
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memcpy(ets->tc_tx_bw, dcbxcfg->etscfg.tcbwtable,
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sizeof(ets->tc_tx_bw));
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memcpy(ets->tc_rx_bw, dcbxcfg->etscfg.tcbwtable,
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sizeof(ets->tc_rx_bw));
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memcpy(ets->tc_tsa, dcbxcfg->etscfg.tsatable,
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sizeof(ets->tc_tsa));
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memcpy(ets->prio_tc, dcbxcfg->etscfg.prioritytable,
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sizeof(ets->prio_tc));
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memcpy(ets->tc_reco_bw, dcbxcfg->etsrec.tcbwtable,
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sizeof(ets->tc_reco_bw));
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memcpy(ets->tc_reco_tsa, dcbxcfg->etsrec.tsatable,
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sizeof(ets->tc_reco_tsa));
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memcpy(ets->reco_prio_tc, dcbxcfg->etscfg.prioritytable,
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sizeof(ets->reco_prio_tc));
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return 0;
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}
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/**
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* i40e_dcbnl_ieee_getpfc - retrieve local IEEE PFC configuration
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* @dev: the corresponding netdev
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* @pfc: structure to hold the PFC information
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*
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* Returns local IEEE PFC configuration
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**/
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static int i40e_dcbnl_ieee_getpfc(struct net_device *dev,
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struct ieee_pfc *pfc)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(dev);
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struct i40e_dcbx_config *dcbxcfg;
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struct i40e_hw *hw = &pf->hw;
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int i;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
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return -EINVAL;
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dcbxcfg = &hw->local_dcbx_config;
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pfc->pfc_cap = dcbxcfg->pfc.pfccap;
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pfc->pfc_en = dcbxcfg->pfc.pfcenable;
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pfc->mbc = dcbxcfg->pfc.mbc;
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i40e_get_pfc_delay(hw, &pfc->delay);
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/* Get Requests/Indications */
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
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pfc->requests[i] = pf->stats.priority_xoff_tx[i];
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pfc->indications[i] = pf->stats.priority_xoff_rx[i];
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}
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return 0;
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}
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/**
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* i40e_dcbnl_ieee_setets - set IEEE ETS configuration
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* @netdev: the corresponding netdev
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* @ets: structure to hold the ETS information
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*
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* Set IEEE ETS configuration
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**/
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static int i40e_dcbnl_ieee_setets(struct net_device *netdev,
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struct ieee_ets *ets)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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struct i40e_dcbx_config *old_cfg;
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int i, ret;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return -EINVAL;
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old_cfg = &pf->hw.local_dcbx_config;
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/* Copy current config into temp */
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pf->tmp_cfg = *old_cfg;
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/* Update the ETS configuration for temp */
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pf->tmp_cfg.etscfg.willing = ets->willing;
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pf->tmp_cfg.etscfg.maxtcs = I40E_MAX_TRAFFIC_CLASS;
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pf->tmp_cfg.etscfg.cbs = ets->cbs;
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
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pf->tmp_cfg.etscfg.tcbwtable[i] = ets->tc_tx_bw[i];
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pf->tmp_cfg.etscfg.tsatable[i] = ets->tc_tsa[i];
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pf->tmp_cfg.etscfg.prioritytable[i] = ets->prio_tc[i];
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pf->tmp_cfg.etsrec.tcbwtable[i] = ets->tc_reco_bw[i];
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pf->tmp_cfg.etsrec.tsatable[i] = ets->tc_reco_tsa[i];
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pf->tmp_cfg.etsrec.prioritytable[i] = ets->reco_prio_tc[i];
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}
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/* Commit changes to HW */
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ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
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if (ret) {
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dev_info(&pf->pdev->dev,
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"Failed setting DCB ETS configuration err %pe aq_err %s\n",
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ERR_PTR(ret),
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i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
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return -EINVAL;
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}
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return 0;
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}
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/**
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* i40e_dcbnl_ieee_setpfc - set local IEEE PFC configuration
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* @netdev: the corresponding netdev
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* @pfc: structure to hold the PFC information
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*
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* Sets local IEEE PFC configuration
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**/
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static int i40e_dcbnl_ieee_setpfc(struct net_device *netdev,
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struct ieee_pfc *pfc)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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struct i40e_dcbx_config *old_cfg;
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int ret;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return -EINVAL;
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old_cfg = &pf->hw.local_dcbx_config;
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/* Copy current config into temp */
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pf->tmp_cfg = *old_cfg;
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if (pfc->pfc_cap)
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pf->tmp_cfg.pfc.pfccap = pfc->pfc_cap;
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else
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pf->tmp_cfg.pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
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pf->tmp_cfg.pfc.pfcenable = pfc->pfc_en;
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ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
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if (ret) {
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dev_info(&pf->pdev->dev,
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"Failed setting DCB PFC configuration err %pe aq_err %s\n",
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ERR_PTR(ret),
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i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
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return -EINVAL;
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}
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return 0;
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}
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/**
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* i40e_dcbnl_ieee_setapp - set local IEEE App configuration
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* @netdev: the corresponding netdev
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* @app: structure to hold the Application information
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*
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* Sets local IEEE App configuration
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**/
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static int i40e_dcbnl_ieee_setapp(struct net_device *netdev,
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struct dcb_app *app)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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struct i40e_dcb_app_priority_table new_app;
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struct i40e_dcbx_config *old_cfg;
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int ret;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return -EINVAL;
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old_cfg = &pf->hw.local_dcbx_config;
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if (old_cfg->numapps == I40E_DCBX_MAX_APPS)
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return -EINVAL;
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ret = dcb_ieee_setapp(netdev, app);
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if (ret)
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return ret;
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new_app.selector = app->selector;
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new_app.protocolid = app->protocol;
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new_app.priority = app->priority;
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/* Already internally available */
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if (i40e_dcbnl_find_app(old_cfg, &new_app))
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return 0;
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/* Copy current config into temp */
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pf->tmp_cfg = *old_cfg;
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/* Add the app */
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pf->tmp_cfg.app[pf->tmp_cfg.numapps++] = new_app;
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ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
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if (ret) {
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dev_info(&pf->pdev->dev,
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"Failed setting DCB configuration err %pe aq_err %s\n",
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ERR_PTR(ret),
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i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
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return -EINVAL;
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}
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return 0;
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}
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/**
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* i40e_dcbnl_ieee_delapp - delete local IEEE App configuration
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* @netdev: the corresponding netdev
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* @app: structure to hold the Application information
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*
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* Deletes local IEEE App configuration other than the first application
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* required by firmware
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**/
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static int i40e_dcbnl_ieee_delapp(struct net_device *netdev,
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struct dcb_app *app)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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struct i40e_dcbx_config *old_cfg;
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int i, j, ret;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return -EINVAL;
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ret = dcb_ieee_delapp(netdev, app);
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if (ret)
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return ret;
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old_cfg = &pf->hw.local_dcbx_config;
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/* Need one app for FW so keep it */
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if (old_cfg->numapps == 1)
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return 0;
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/* Copy current config into temp */
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pf->tmp_cfg = *old_cfg;
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/* Find and reset the app */
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for (i = 1; i < pf->tmp_cfg.numapps; i++) {
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if (app->selector == pf->tmp_cfg.app[i].selector &&
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app->protocol == pf->tmp_cfg.app[i].protocolid &&
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app->priority == pf->tmp_cfg.app[i].priority) {
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/* Reset the app data */
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pf->tmp_cfg.app[i].selector = 0;
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pf->tmp_cfg.app[i].protocolid = 0;
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pf->tmp_cfg.app[i].priority = 0;
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break;
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}
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}
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/* If the specific DCB app not found */
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if (i == pf->tmp_cfg.numapps)
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return -EINVAL;
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pf->tmp_cfg.numapps--;
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/* Overwrite the tmp_cfg app */
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for (j = i; j < pf->tmp_cfg.numapps; j++)
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pf->tmp_cfg.app[j] = old_cfg->app[j + 1];
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ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
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if (ret) {
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dev_info(&pf->pdev->dev,
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"Failed setting DCB configuration err %pe aq_err %s\n",
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ERR_PTR(ret),
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i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
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return -EINVAL;
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}
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return 0;
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}
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/**
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* i40e_dcbnl_getstate - Get DCB enabled state
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* @netdev: the corresponding netdev
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*
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* Get the current DCB enabled state
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**/
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static u8 i40e_dcbnl_getstate(struct net_device *netdev)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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dev_dbg(&pf->pdev->dev, "DCB state=%d\n",
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!!(pf->flags & I40E_FLAG_DCB_ENABLED));
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return !!(pf->flags & I40E_FLAG_DCB_ENABLED);
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}
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/**
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* i40e_dcbnl_setstate - Set DCB state
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* @netdev: the corresponding netdev
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* @state: enable or disable
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*
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* Set the DCB state
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**/
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static u8 i40e_dcbnl_setstate(struct net_device *netdev, u8 state)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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int ret = I40E_DCBNL_STATUS_SUCCESS;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return ret;
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dev_dbg(&pf->pdev->dev, "new state=%d current state=%d\n",
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state, (pf->flags & I40E_FLAG_DCB_ENABLED) ? 1 : 0);
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/* Nothing to do */
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if (!state == !(pf->flags & I40E_FLAG_DCB_ENABLED))
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return ret;
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if (i40e_is_sw_dcb(pf)) {
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if (state) {
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pf->flags |= I40E_FLAG_DCB_ENABLED;
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memcpy(&pf->hw.desired_dcbx_config,
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&pf->hw.local_dcbx_config,
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sizeof(struct i40e_dcbx_config));
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} else {
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pf->flags &= ~I40E_FLAG_DCB_ENABLED;
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}
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} else {
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/* Cannot directly manipulate FW LLDP Agent */
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ret = I40E_DCBNL_STATUS_ERROR;
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}
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return ret;
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}
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/**
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* i40e_dcbnl_set_pg_tc_cfg_tx - Set CEE PG Tx config
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* @netdev: the corresponding netdev
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* @tc: the corresponding traffic class
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* @prio_type: the traffic priority type
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* @bwg_id: the BW group id the traffic class belongs to
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* @bw_pct: the BW percentage for the corresponding BWG
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* @up_map: prio mapped to corresponding tc
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*
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* Set Tx PG settings for CEE mode
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**/
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static void i40e_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
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u8 prio_type, u8 bwg_id, u8 bw_pct,
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u8 up_map)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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int i;
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return;
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/* LLTC not supported yet */
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if (tc >= I40E_MAX_TRAFFIC_CLASS)
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return;
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/* prio_type, bwg_id and bw_pct per UP are not supported */
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/* Use only up_map to map tc */
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for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
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if (up_map & BIT(i))
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pf->tmp_cfg.etscfg.prioritytable[i] = tc;
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}
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pf->tmp_cfg.etscfg.tsatable[tc] = I40E_IEEE_TSA_ETS;
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dev_dbg(&pf->pdev->dev,
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"Set PG config tc=%d bwg_id=%d prio_type=%d bw_pct=%d up_map=%d\n",
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tc, bwg_id, prio_type, bw_pct, up_map);
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}
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/**
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* i40e_dcbnl_set_pg_bwg_cfg_tx - Set CEE PG Tx BW config
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* @netdev: the corresponding netdev
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* @pgid: the corresponding traffic class
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* @bw_pct: the BW percentage for the specified traffic class
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*
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* Set Tx BW settings for CEE mode
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**/
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static void i40e_dcbnl_set_pg_bwg_cfg_tx(struct net_device *netdev, int pgid,
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u8 bw_pct)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
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(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
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return;
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/* LLTC not supported yet */
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if (pgid >= I40E_MAX_TRAFFIC_CLASS)
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return;
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pf->tmp_cfg.etscfg.tcbwtable[pgid] = bw_pct;
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dev_dbg(&pf->pdev->dev, "Set PG BW config tc=%d bw_pct=%d\n",
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pgid, bw_pct);
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}
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/**
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* i40e_dcbnl_set_pg_tc_cfg_rx - Set CEE PG Rx config
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* @netdev: the corresponding netdev
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* @prio: the corresponding traffic class
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* @prio_type: the traffic priority type
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* @pgid: the BW group id the traffic class belongs to
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* @bw_pct: the BW percentage for the corresponding BWG
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* @up_map: prio mapped to corresponding tc
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*
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* Set Rx BW settings for CEE mode. The hardware does not support this
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* so we won't allow setting of this parameter.
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**/
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static void i40e_dcbnl_set_pg_tc_cfg_rx(struct net_device *netdev,
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int __always_unused prio,
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u8 __always_unused prio_type,
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u8 __always_unused pgid,
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u8 __always_unused bw_pct,
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u8 __always_unused up_map)
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{
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struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
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dev_dbg(&pf->pdev->dev, "Rx TC PG Config Not Supported.\n");
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}
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/**
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* i40e_dcbnl_set_pg_bwg_cfg_rx - Set CEE PG Rx config
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* @netdev: the corresponding netdev
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* @pgid: the corresponding traffic class
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* @bw_pct: the BW percentage for the specified traffic class
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*
|
|
* Set Rx BW settings for CEE mode. The hardware does not support this
|
|
* so we won't allow setting of this parameter.
|
|
**/
|
|
static void i40e_dcbnl_set_pg_bwg_cfg_rx(struct net_device *netdev, int pgid,
|
|
u8 bw_pct)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
dev_dbg(&pf->pdev->dev, "Rx BWG PG Config Not Supported.\n");
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_pg_tc_cfg_tx - Get CEE PG Tx config
|
|
* @netdev: the corresponding netdev
|
|
* @prio: the corresponding user priority
|
|
* @prio_type: traffic priority type
|
|
* @pgid: the BW group ID the traffic class belongs to
|
|
* @bw_pct: BW percentage for the corresponding BWG
|
|
* @up_map: prio mapped to corresponding TC
|
|
*
|
|
* Get Tx PG settings for CEE mode
|
|
**/
|
|
static void i40e_dcbnl_get_pg_tc_cfg_tx(struct net_device *netdev, int prio,
|
|
u8 __always_unused *prio_type,
|
|
u8 *pgid,
|
|
u8 __always_unused *bw_pct,
|
|
u8 __always_unused *up_map)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
|
|
if (prio >= I40E_MAX_USER_PRIORITY)
|
|
return;
|
|
|
|
*pgid = pf->hw.local_dcbx_config.etscfg.prioritytable[prio];
|
|
dev_dbg(&pf->pdev->dev, "Get PG config prio=%d tc=%d\n",
|
|
prio, *pgid);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_pg_bwg_cfg_tx - Get CEE PG BW config
|
|
* @netdev: the corresponding netdev
|
|
* @pgid: the corresponding traffic class
|
|
* @bw_pct: the BW percentage for the corresponding TC
|
|
*
|
|
* Get Tx BW settings for given TC in CEE mode
|
|
**/
|
|
static void i40e_dcbnl_get_pg_bwg_cfg_tx(struct net_device *netdev, int pgid,
|
|
u8 *bw_pct)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
|
|
if (pgid >= I40E_MAX_TRAFFIC_CLASS)
|
|
return;
|
|
|
|
*bw_pct = pf->hw.local_dcbx_config.etscfg.tcbwtable[pgid];
|
|
dev_dbg(&pf->pdev->dev, "Get PG BW config tc=%d bw_pct=%d\n",
|
|
pgid, *bw_pct);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_pg_tc_cfg_rx - Get CEE PG Rx config
|
|
* @netdev: the corresponding netdev
|
|
* @prio: the corresponding user priority
|
|
* @prio_type: the traffic priority type
|
|
* @pgid: the PG ID
|
|
* @bw_pct: the BW percentage for the corresponding BWG
|
|
* @up_map: prio mapped to corresponding TC
|
|
*
|
|
* Get Rx PG settings for CEE mode. The UP2TC map is applied in same
|
|
* manner for Tx and Rx (symmetrical) so return the TC information for
|
|
* given priority accordingly.
|
|
**/
|
|
static void i40e_dcbnl_get_pg_tc_cfg_rx(struct net_device *netdev, int prio,
|
|
u8 *prio_type, u8 *pgid, u8 *bw_pct,
|
|
u8 *up_map)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
|
|
if (prio >= I40E_MAX_USER_PRIORITY)
|
|
return;
|
|
|
|
*pgid = pf->hw.local_dcbx_config.etscfg.prioritytable[prio];
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_pg_bwg_cfg_rx - Get CEE PG BW Rx config
|
|
* @netdev: the corresponding netdev
|
|
* @pgid: the corresponding traffic class
|
|
* @bw_pct: the BW percentage for the corresponding TC
|
|
*
|
|
* Get Rx BW settings for given TC in CEE mode
|
|
* The adapter doesn't support Rx ETS and runs in strict priority
|
|
* mode in Rx path and hence just return 0.
|
|
**/
|
|
static void i40e_dcbnl_get_pg_bwg_cfg_rx(struct net_device *netdev, int pgid,
|
|
u8 *bw_pct)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
*bw_pct = 0;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_set_pfc_cfg - Set CEE PFC configuration
|
|
* @netdev: the corresponding netdev
|
|
* @prio: the corresponding user priority
|
|
* @setting: the PFC setting for given priority
|
|
*
|
|
* Set the PFC enabled/disabled setting for given user priority
|
|
**/
|
|
static void i40e_dcbnl_set_pfc_cfg(struct net_device *netdev, int prio,
|
|
u8 setting)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
|
|
if (prio >= I40E_MAX_USER_PRIORITY)
|
|
return;
|
|
|
|
pf->tmp_cfg.pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
|
|
if (setting)
|
|
pf->tmp_cfg.pfc.pfcenable |= BIT(prio);
|
|
else
|
|
pf->tmp_cfg.pfc.pfcenable &= ~BIT(prio);
|
|
dev_dbg(&pf->pdev->dev,
|
|
"Set PFC Config up=%d setting=%d pfcenable=0x%x\n",
|
|
prio, setting, pf->tmp_cfg.pfc.pfcenable);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_pfc_cfg - Get CEE PFC configuration
|
|
* @netdev: the corresponding netdev
|
|
* @prio: the corresponding user priority
|
|
* @setting: the PFC setting for given priority
|
|
*
|
|
* Get the PFC enabled/disabled setting for given user priority
|
|
**/
|
|
static void i40e_dcbnl_get_pfc_cfg(struct net_device *netdev, int prio,
|
|
u8 *setting)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return;
|
|
|
|
if (prio >= I40E_MAX_USER_PRIORITY)
|
|
return;
|
|
|
|
*setting = (pf->hw.local_dcbx_config.pfc.pfcenable >> prio) & 0x1;
|
|
dev_dbg(&pf->pdev->dev,
|
|
"Get PFC Config up=%d setting=%d pfcenable=0x%x\n",
|
|
prio, *setting, pf->hw.local_dcbx_config.pfc.pfcenable);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_cee_set_all - Commit CEE DCB settings to hardware
|
|
* @netdev: the corresponding netdev
|
|
*
|
|
* Commit the current DCB configuration to hardware
|
|
**/
|
|
static u8 i40e_dcbnl_cee_set_all(struct net_device *netdev)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
int err;
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return I40E_DCBNL_STATUS_ERROR;
|
|
|
|
dev_dbg(&pf->pdev->dev, "Commit DCB Configuration to the hardware\n");
|
|
err = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
|
|
|
|
return err ? I40E_DCBNL_STATUS_ERROR : I40E_DCBNL_STATUS_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_cap - Get DCBX capabilities of adapter
|
|
* @netdev: the corresponding netdev
|
|
* @capid: the capability type
|
|
* @cap: the capability value
|
|
*
|
|
* Return the capability value for a given capability type
|
|
**/
|
|
static u8 i40e_dcbnl_get_cap(struct net_device *netdev, int capid, u8 *cap)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->flags & I40E_FLAG_DCB_CAPABLE))
|
|
return I40E_DCBNL_STATUS_ERROR;
|
|
|
|
switch (capid) {
|
|
case DCB_CAP_ATTR_PG:
|
|
case DCB_CAP_ATTR_PFC:
|
|
*cap = true;
|
|
break;
|
|
case DCB_CAP_ATTR_PG_TCS:
|
|
case DCB_CAP_ATTR_PFC_TCS:
|
|
*cap = 0x80;
|
|
break;
|
|
case DCB_CAP_ATTR_DCBX:
|
|
*cap = pf->dcbx_cap;
|
|
break;
|
|
case DCB_CAP_ATTR_UP2TC:
|
|
case DCB_CAP_ATTR_GSP:
|
|
case DCB_CAP_ATTR_BCN:
|
|
default:
|
|
*cap = false;
|
|
break;
|
|
}
|
|
|
|
dev_dbg(&pf->pdev->dev, "Get Capability cap=%d capval=0x%x\n",
|
|
capid, *cap);
|
|
return I40E_DCBNL_STATUS_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_getnumtcs - Get max number of traffic classes supported
|
|
* @netdev: the corresponding netdev
|
|
* @tcid: the TC id
|
|
* @num: total number of TCs supported by the device
|
|
*
|
|
* Return the total number of TCs supported by the adapter
|
|
**/
|
|
static int i40e_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
if (!(pf->flags & I40E_FLAG_DCB_CAPABLE))
|
|
return -EINVAL;
|
|
|
|
*num = I40E_MAX_TRAFFIC_CLASS;
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_setnumtcs - Set CEE number of traffic classes
|
|
* @netdev: the corresponding netdev
|
|
* @tcid: the TC id
|
|
* @num: total number of TCs
|
|
*
|
|
* Set the total number of TCs (Unsupported)
|
|
**/
|
|
static int i40e_dcbnl_setnumtcs(struct net_device *netdev, int tcid, u8 num)
|
|
{
|
|
return -EINVAL;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_getpfcstate - Get CEE PFC mode
|
|
* @netdev: the corresponding netdev
|
|
*
|
|
* Get the current PFC enabled state
|
|
**/
|
|
static u8 i40e_dcbnl_getpfcstate(struct net_device *netdev)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
/* Return enabled if any PFC enabled UP */
|
|
if (pf->hw.local_dcbx_config.pfc.pfcenable)
|
|
return 1;
|
|
else
|
|
return 0;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_setpfcstate - Set CEE PFC mode
|
|
* @netdev: the corresponding netdev
|
|
* @state: required state
|
|
*
|
|
* The PFC state to be set; this is enabled/disabled based on the PFC
|
|
* priority settings and not via this call for i40e driver
|
|
**/
|
|
static void i40e_dcbnl_setpfcstate(struct net_device *netdev, u8 state)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
dev_dbg(&pf->pdev->dev, "PFC State is modified via PFC config.\n");
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_getapp - Get CEE APP
|
|
* @netdev: the corresponding netdev
|
|
* @idtype: the App selector
|
|
* @id: the App ethtype or port number
|
|
*
|
|
* Return the CEE mode app for the given idtype and id
|
|
**/
|
|
static int i40e_dcbnl_getapp(struct net_device *netdev, u8 idtype, u16 id)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
struct dcb_app app = {
|
|
.selector = idtype,
|
|
.protocol = id,
|
|
};
|
|
|
|
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
|
|
(pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
|
|
return -EINVAL;
|
|
|
|
return dcb_getapp(netdev, &app);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_setdcbx - set required DCBx capability
|
|
* @netdev: the corresponding netdev
|
|
* @mode: new DCB mode managed or CEE+IEEE
|
|
*
|
|
* Set DCBx capability features
|
|
**/
|
|
static u8 i40e_dcbnl_setdcbx(struct net_device *netdev, u8 mode)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
|
|
|
|
/* Do not allow to set mode if managed by Firmware */
|
|
if (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED)
|
|
return I40E_DCBNL_STATUS_ERROR;
|
|
|
|
/* No support for LLD_MANAGED modes or CEE+IEEE */
|
|
if ((mode & DCB_CAP_DCBX_LLD_MANAGED) ||
|
|
((mode & DCB_CAP_DCBX_VER_IEEE) && (mode & DCB_CAP_DCBX_VER_CEE)) ||
|
|
!(mode & DCB_CAP_DCBX_HOST))
|
|
return I40E_DCBNL_STATUS_ERROR;
|
|
|
|
/* Already set to the given mode no change */
|
|
if (mode == pf->dcbx_cap)
|
|
return I40E_DCBNL_STATUS_SUCCESS;
|
|
|
|
pf->dcbx_cap = mode;
|
|
if (mode & DCB_CAP_DCBX_VER_CEE)
|
|
pf->hw.local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_CEE;
|
|
else
|
|
pf->hw.local_dcbx_config.dcbx_mode = I40E_DCBX_MODE_IEEE;
|
|
|
|
dev_dbg(&pf->pdev->dev, "mode=%d\n", mode);
|
|
return I40E_DCBNL_STATUS_SUCCESS;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_getdcbx - retrieve current DCBx capability
|
|
* @dev: the corresponding netdev
|
|
*
|
|
* Returns DCBx capability features
|
|
**/
|
|
static u8 i40e_dcbnl_getdcbx(struct net_device *dev)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
|
|
|
|
return pf->dcbx_cap;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_get_perm_hw_addr - MAC address used by DCBx
|
|
* @dev: the corresponding netdev
|
|
* @perm_addr: buffer to store the MAC address
|
|
*
|
|
* Returns the SAN MAC address used for LLDP exchange
|
|
**/
|
|
static void i40e_dcbnl_get_perm_hw_addr(struct net_device *dev,
|
|
u8 *perm_addr)
|
|
{
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
|
|
int i, j;
|
|
|
|
memset(perm_addr, 0xff, MAX_ADDR_LEN);
|
|
|
|
for (i = 0; i < dev->addr_len; i++)
|
|
perm_addr[i] = pf->hw.mac.perm_addr[i];
|
|
|
|
for (j = 0; j < dev->addr_len; j++, i++)
|
|
perm_addr[i] = pf->hw.mac.san_addr[j];
|
|
}
|
|
|
|
static const struct dcbnl_rtnl_ops dcbnl_ops = {
|
|
.ieee_getets = i40e_dcbnl_ieee_getets,
|
|
.ieee_getpfc = i40e_dcbnl_ieee_getpfc,
|
|
.getdcbx = i40e_dcbnl_getdcbx,
|
|
.getpermhwaddr = i40e_dcbnl_get_perm_hw_addr,
|
|
.ieee_setets = i40e_dcbnl_ieee_setets,
|
|
.ieee_setpfc = i40e_dcbnl_ieee_setpfc,
|
|
.ieee_setapp = i40e_dcbnl_ieee_setapp,
|
|
.ieee_delapp = i40e_dcbnl_ieee_delapp,
|
|
.getstate = i40e_dcbnl_getstate,
|
|
.setstate = i40e_dcbnl_setstate,
|
|
.setpgtccfgtx = i40e_dcbnl_set_pg_tc_cfg_tx,
|
|
.setpgbwgcfgtx = i40e_dcbnl_set_pg_bwg_cfg_tx,
|
|
.setpgtccfgrx = i40e_dcbnl_set_pg_tc_cfg_rx,
|
|
.setpgbwgcfgrx = i40e_dcbnl_set_pg_bwg_cfg_rx,
|
|
.getpgtccfgtx = i40e_dcbnl_get_pg_tc_cfg_tx,
|
|
.getpgbwgcfgtx = i40e_dcbnl_get_pg_bwg_cfg_tx,
|
|
.getpgtccfgrx = i40e_dcbnl_get_pg_tc_cfg_rx,
|
|
.getpgbwgcfgrx = i40e_dcbnl_get_pg_bwg_cfg_rx,
|
|
.setpfccfg = i40e_dcbnl_set_pfc_cfg,
|
|
.getpfccfg = i40e_dcbnl_get_pfc_cfg,
|
|
.setall = i40e_dcbnl_cee_set_all,
|
|
.getcap = i40e_dcbnl_get_cap,
|
|
.getnumtcs = i40e_dcbnl_getnumtcs,
|
|
.setnumtcs = i40e_dcbnl_setnumtcs,
|
|
.getpfcstate = i40e_dcbnl_getpfcstate,
|
|
.setpfcstate = i40e_dcbnl_setpfcstate,
|
|
.getapp = i40e_dcbnl_getapp,
|
|
.setdcbx = i40e_dcbnl_setdcbx,
|
|
};
|
|
|
|
/**
|
|
* i40e_dcbnl_set_all - set all the apps and ieee data from DCBx config
|
|
* @vsi: the corresponding vsi
|
|
*
|
|
* Set up all the IEEE APPs in the DCBNL App Table and generate event for
|
|
* other settings
|
|
**/
|
|
void i40e_dcbnl_set_all(struct i40e_vsi *vsi)
|
|
{
|
|
struct net_device *dev = vsi->netdev;
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
|
|
struct i40e_dcbx_config *dcbxcfg;
|
|
struct i40e_hw *hw = &pf->hw;
|
|
struct dcb_app sapp;
|
|
u8 prio, tc_map;
|
|
int i;
|
|
|
|
/* SW DCB taken care by DCBNL set calls */
|
|
if (pf->dcbx_cap & DCB_CAP_DCBX_HOST)
|
|
return;
|
|
|
|
/* DCB not enabled */
|
|
if (!(pf->flags & I40E_FLAG_DCB_ENABLED))
|
|
return;
|
|
|
|
/* MFP mode but not an iSCSI PF so return */
|
|
if ((pf->flags & I40E_FLAG_MFP_ENABLED) && !(hw->func_caps.iscsi))
|
|
return;
|
|
|
|
dcbxcfg = &hw->local_dcbx_config;
|
|
|
|
/* Set up all the App TLVs if DCBx is negotiated */
|
|
for (i = 0; i < dcbxcfg->numapps; i++) {
|
|
prio = dcbxcfg->app[i].priority;
|
|
tc_map = BIT(dcbxcfg->etscfg.prioritytable[prio]);
|
|
|
|
/* Add APP only if the TC is enabled for this VSI */
|
|
if (tc_map & vsi->tc_config.enabled_tc) {
|
|
sapp.selector = dcbxcfg->app[i].selector;
|
|
sapp.protocol = dcbxcfg->app[i].protocolid;
|
|
sapp.priority = prio;
|
|
dcb_ieee_setapp(dev, &sapp);
|
|
}
|
|
}
|
|
|
|
/* Notify user-space of the changes */
|
|
dcbnl_ieee_notify(dev, RTM_SETDCB, DCB_CMD_IEEE_SET, 0, 0);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_vsi_del_app - Delete APP for given VSI
|
|
* @vsi: the corresponding vsi
|
|
* @app: APP to delete
|
|
*
|
|
* Delete given APP from the DCBNL APP table for given
|
|
* VSI
|
|
**/
|
|
static int i40e_dcbnl_vsi_del_app(struct i40e_vsi *vsi,
|
|
struct i40e_dcb_app_priority_table *app)
|
|
{
|
|
struct net_device *dev = vsi->netdev;
|
|
struct dcb_app sapp;
|
|
|
|
if (!dev)
|
|
return -EINVAL;
|
|
|
|
sapp.selector = app->selector;
|
|
sapp.protocol = app->protocolid;
|
|
sapp.priority = app->priority;
|
|
return dcb_ieee_delapp(dev, &sapp);
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_del_app - Delete APP on all VSIs
|
|
* @pf: the corresponding PF
|
|
* @app: APP to delete
|
|
*
|
|
* Delete given APP from all the VSIs for given PF
|
|
**/
|
|
static void i40e_dcbnl_del_app(struct i40e_pf *pf,
|
|
struct i40e_dcb_app_priority_table *app)
|
|
{
|
|
int v, err;
|
|
|
|
for (v = 0; v < pf->num_alloc_vsi; v++) {
|
|
if (pf->vsi[v] && pf->vsi[v]->netdev) {
|
|
err = i40e_dcbnl_vsi_del_app(pf->vsi[v], app);
|
|
dev_dbg(&pf->pdev->dev, "Deleting app for VSI seid=%d err=%d sel=%d proto=0x%x prio=%d\n",
|
|
pf->vsi[v]->seid, err, app->selector,
|
|
app->protocolid, app->priority);
|
|
}
|
|
}
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_find_app - Search APP in given DCB config
|
|
* @cfg: DCBX configuration data
|
|
* @app: APP to search for
|
|
*
|
|
* Find given APP in the DCB configuration
|
|
**/
|
|
static bool i40e_dcbnl_find_app(struct i40e_dcbx_config *cfg,
|
|
struct i40e_dcb_app_priority_table *app)
|
|
{
|
|
int i;
|
|
|
|
for (i = 0; i < cfg->numapps; i++) {
|
|
if (app->selector == cfg->app[i].selector &&
|
|
app->protocolid == cfg->app[i].protocolid &&
|
|
app->priority == cfg->app[i].priority)
|
|
return true;
|
|
}
|
|
|
|
return false;
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_flush_apps - Delete all removed APPs
|
|
* @pf: the corresponding PF
|
|
* @old_cfg: old DCBX configuration data
|
|
* @new_cfg: new DCBX configuration data
|
|
*
|
|
* Find and delete all APPs that are not present in the passed
|
|
* DCB configuration
|
|
**/
|
|
void i40e_dcbnl_flush_apps(struct i40e_pf *pf,
|
|
struct i40e_dcbx_config *old_cfg,
|
|
struct i40e_dcbx_config *new_cfg)
|
|
{
|
|
struct i40e_dcb_app_priority_table app;
|
|
int i;
|
|
|
|
/* MFP mode but not an iSCSI PF so return */
|
|
if ((pf->flags & I40E_FLAG_MFP_ENABLED) && !(pf->hw.func_caps.iscsi))
|
|
return;
|
|
|
|
for (i = 0; i < old_cfg->numapps; i++) {
|
|
app = old_cfg->app[i];
|
|
/* The APP is not available anymore delete it */
|
|
if (!i40e_dcbnl_find_app(new_cfg, &app))
|
|
i40e_dcbnl_del_app(pf, &app);
|
|
}
|
|
}
|
|
|
|
/**
|
|
* i40e_dcbnl_setup - DCBNL setup
|
|
* @vsi: the corresponding vsi
|
|
*
|
|
* Set up DCBNL ops and initial APP TLVs
|
|
**/
|
|
void i40e_dcbnl_setup(struct i40e_vsi *vsi)
|
|
{
|
|
struct net_device *dev = vsi->netdev;
|
|
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
|
|
|
|
/* Not DCB capable */
|
|
if (!(pf->flags & I40E_FLAG_DCB_CAPABLE))
|
|
return;
|
|
|
|
dev->dcbnl_ops = &dcbnl_ops;
|
|
|
|
/* Set initial IEEE DCB settings */
|
|
i40e_dcbnl_set_all(vsi);
|
|
}
|
|
#endif /* CONFIG_I40E_DCB */
|