// SPDX-License-Identifier: GPL-2.0
-/* Copyright(c) 2013 - 2018 Intel Corporation. */
+/* Copyright(c) 2013 - 2021 Intel Corporation. */
#ifdef CONFIG_I40E_DCB
#include "i40e.h"
#include <net/dcbnl.h>
+#define I40E_DCBNL_STATUS_SUCCESS 0
+#define I40E_DCBNL_STATUS_ERROR 1
+static bool i40e_dcbnl_find_app(struct i40e_dcbx_config *cfg,
+ struct i40e_dcb_app_priority_table *app);
/**
* i40e_get_pfc_delay - retrieve PFC Link Delay
* @hw: pointer to hardware struct
{
struct i40e_pf *pf = i40e_netdev_to_pf(dev);
struct i40e_dcbx_config *dcbxcfg;
- struct i40e_hw *hw = &pf->hw;
if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE))
return -EINVAL;
- dcbxcfg = &hw->local_dcbx_config;
+ dcbxcfg = &pf->hw.local_dcbx_config;
ets->willing = dcbxcfg->etscfg.willing;
- ets->ets_cap = dcbxcfg->etscfg.maxtcs;
+ ets->ets_cap = I40E_MAX_TRAFFIC_CLASS;
ets->cbs = dcbxcfg->etscfg.cbs;
memcpy(ets->tc_tx_bw, dcbxcfg->etscfg.tcbwtable,
sizeof(ets->tc_tx_bw));
pfc->mbc = dcbxcfg->pfc.mbc;
i40e_get_pfc_delay(hw, &pfc->delay);
- /* Get Requests/Indicatiosn */
+ /* Get Requests/Indications */
for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
pfc->requests[i] = pf->stats.priority_xoff_tx[i];
pfc->indications[i] = pf->stats.priority_xoff_rx[i];
return 0;
}
+/**
+ * i40e_dcbnl_ieee_setets - set IEEE ETS configuration
+ * @netdev: the corresponding netdev
+ * @ets: structure to hold the ETS information
+ *
+ * Set IEEE ETS configuration
+ **/
+static int i40e_dcbnl_ieee_setets(struct net_device *netdev,
+ struct ieee_ets *ets)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ struct i40e_dcbx_config *old_cfg;
+ int i, ret;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return -EINVAL;
+
+ old_cfg = &pf->hw.local_dcbx_config;
+ /* Copy current config into temp */
+ pf->tmp_cfg = *old_cfg;
+
+ /* Update the ETS configuration for temp */
+ pf->tmp_cfg.etscfg.willing = ets->willing;
+ pf->tmp_cfg.etscfg.maxtcs = I40E_MAX_TRAFFIC_CLASS;
+ pf->tmp_cfg.etscfg.cbs = ets->cbs;
+ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+ pf->tmp_cfg.etscfg.tcbwtable[i] = ets->tc_tx_bw[i];
+ pf->tmp_cfg.etscfg.tsatable[i] = ets->tc_tsa[i];
+ pf->tmp_cfg.etscfg.prioritytable[i] = ets->prio_tc[i];
+ pf->tmp_cfg.etsrec.tcbwtable[i] = ets->tc_reco_bw[i];
+ pf->tmp_cfg.etsrec.tsatable[i] = ets->tc_reco_tsa[i];
+ pf->tmp_cfg.etsrec.prioritytable[i] = ets->reco_prio_tc[i];
+ }
+
+ /* Commit changes to HW */
+ ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
+ if (ret) {
+ dev_info(&pf->pdev->dev,
+ "Failed setting DCB ETS configuration err %s aq_err %s\n",
+ i40e_stat_str(&pf->hw, ret),
+ i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * i40e_dcbnl_ieee_setpfc - set local IEEE PFC configuration
+ * @netdev: the corresponding netdev
+ * @pfc: structure to hold the PFC information
+ *
+ * Sets local IEEE PFC configuration
+ **/
+static int i40e_dcbnl_ieee_setpfc(struct net_device *netdev,
+ struct ieee_pfc *pfc)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ struct i40e_dcbx_config *old_cfg;
+ int ret;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return -EINVAL;
+
+ old_cfg = &pf->hw.local_dcbx_config;
+ /* Copy current config into temp */
+ pf->tmp_cfg = *old_cfg;
+ if (pfc->pfc_cap)
+ pf->tmp_cfg.pfc.pfccap = pfc->pfc_cap;
+ else
+ pf->tmp_cfg.pfc.pfccap = I40E_MAX_TRAFFIC_CLASS;
+ pf->tmp_cfg.pfc.pfcenable = pfc->pfc_en;
+
+ ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
+ if (ret) {
+ dev_info(&pf->pdev->dev,
+ "Failed setting DCB PFC configuration err %s aq_err %s\n",
+ i40e_stat_str(&pf->hw, ret),
+ i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * i40e_dcbnl_ieee_setapp - set local IEEE App configuration
+ * @netdev: the corresponding netdev
+ * @app: structure to hold the Application information
+ *
+ * Sets local IEEE App configuration
+ **/
+static int i40e_dcbnl_ieee_setapp(struct net_device *netdev,
+ struct dcb_app *app)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ struct i40e_dcb_app_priority_table new_app;
+ struct i40e_dcbx_config *old_cfg;
+ int ret;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return -EINVAL;
+
+ old_cfg = &pf->hw.local_dcbx_config;
+ if (old_cfg->numapps == I40E_DCBX_MAX_APPS)
+ return -EINVAL;
+
+ ret = dcb_ieee_setapp(netdev, app);
+ if (ret)
+ return ret;
+
+ new_app.selector = app->selector;
+ new_app.protocolid = app->protocol;
+ new_app.priority = app->priority;
+ /* Already internally available */
+ if (i40e_dcbnl_find_app(old_cfg, &new_app))
+ return 0;
+
+ /* Copy current config into temp */
+ pf->tmp_cfg = *old_cfg;
+ /* Add the app */
+ pf->tmp_cfg.app[pf->tmp_cfg.numapps++] = new_app;
+
+ ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
+ if (ret) {
+ dev_info(&pf->pdev->dev,
+ "Failed setting DCB configuration err %s aq_err %s\n",
+ i40e_stat_str(&pf->hw, ret),
+ i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * i40e_dcbnl_ieee_delapp - delete local IEEE App configuration
+ * @netdev: the corresponding netdev
+ * @app: structure to hold the Application information
+ *
+ * Deletes local IEEE App configuration other than the first application
+ * required by firmware
+ **/
+static int i40e_dcbnl_ieee_delapp(struct net_device *netdev,
+ struct dcb_app *app)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ struct i40e_dcbx_config *old_cfg;
+ int i, j, ret;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return -EINVAL;
+
+ ret = dcb_ieee_delapp(netdev, app);
+ if (ret)
+ return ret;
+
+ old_cfg = &pf->hw.local_dcbx_config;
+ /* Need one app for FW so keep it */
+ if (old_cfg->numapps == 1)
+ return 0;
+
+ /* Copy current config into temp */
+ pf->tmp_cfg = *old_cfg;
+
+ /* Find and reset the app */
+ for (i = 1; i < pf->tmp_cfg.numapps; i++) {
+ if (app->selector == pf->tmp_cfg.app[i].selector &&
+ app->protocol == pf->tmp_cfg.app[i].protocolid &&
+ app->priority == pf->tmp_cfg.app[i].priority) {
+ /* Reset the app data */
+ pf->tmp_cfg.app[i].selector = 0;
+ pf->tmp_cfg.app[i].protocolid = 0;
+ pf->tmp_cfg.app[i].priority = 0;
+ break;
+ }
+ }
+
+ /* If the specific DCB app not found */
+ if (i == pf->tmp_cfg.numapps)
+ return -EINVAL;
+
+ pf->tmp_cfg.numapps--;
+ /* Overwrite the tmp_cfg app */
+ for (j = i; j < pf->tmp_cfg.numapps; j++)
+ pf->tmp_cfg.app[j] = old_cfg->app[j + 1];
+
+ ret = i40e_hw_dcb_config(pf, &pf->tmp_cfg);
+ if (ret) {
+ dev_info(&pf->pdev->dev,
+ "Failed setting DCB configuration err %s aq_err %s\n",
+ i40e_stat_str(&pf->hw, ret),
+ i40e_aq_str(&pf->hw, pf->hw.aq.asq_last_status));
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+/**
+ * i40e_dcbnl_getstate - Get DCB enabled state
+ * @netdev: the corresponding netdev
+ *
+ * Get the current DCB enabled state
+ **/
+static u8 i40e_dcbnl_getstate(struct net_device *netdev)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+
+ dev_dbg(&pf->pdev->dev, "DCB state=%d\n",
+ !!(pf->flags & I40E_FLAG_DCB_ENABLED));
+ return !!(pf->flags & I40E_FLAG_DCB_ENABLED);
+}
+
+/**
+ * i40e_dcbnl_setstate - Set DCB state
+ * @netdev: the corresponding netdev
+ * @state: enable or disable
+ *
+ * Set the DCB state
+ **/
+static u8 i40e_dcbnl_setstate(struct net_device *netdev, u8 state)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ int ret = I40E_DCBNL_STATUS_SUCCESS;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return ret;
+
+ dev_dbg(&pf->pdev->dev, "new state=%d current state=%d\n",
+ state, (pf->flags & I40E_FLAG_DCB_ENABLED) ? 1 : 0);
+ /* Nothing to do */
+ if (!state == !(pf->flags & I40E_FLAG_DCB_ENABLED))
+ return ret;
+
+ if (i40e_is_sw_dcb(pf)) {
+ if (state) {
+ pf->flags |= I40E_FLAG_DCB_ENABLED;
+ memcpy(&pf->hw.desired_dcbx_config,
+ &pf->hw.local_dcbx_config,
+ sizeof(struct i40e_dcbx_config));
+ } else {
+ pf->flags &= ~I40E_FLAG_DCB_ENABLED;
+ }
+ } else {
+ /* Cannot directly manipulate FW LLDP Agent */
+ ret = I40E_DCBNL_STATUS_ERROR;
+ }
+ return ret;
+}
+
+/**
+ * i40e_dcbnl_set_pg_tc_cfg_tx - Set CEE PG Tx config
+ * @netdev: the corresponding netdev
+ * @tc: the corresponding traffic class
+ * @prio_type: the traffic priority type
+ * @bwg_id: the BW group id the traffic class belongs to
+ * @bw_pct: the BW percentage for the corresponding BWG
+ * @up_map: prio mapped to corresponding tc
+ *
+ * Set Tx PG settings for CEE mode
+ **/
+static void i40e_dcbnl_set_pg_tc_cfg_tx(struct net_device *netdev, int tc,
+ u8 prio_type, u8 bwg_id, u8 bw_pct,
+ u8 up_map)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+ int i;
+
+ if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_CEE) ||
+ (pf->dcbx_cap & DCB_CAP_DCBX_LLD_MANAGED))
+ return;
+
+ /* LLTC not supported yet */
+ if (tc >= I40E_MAX_TRAFFIC_CLASS)
+ return;
+
+ /* prio_type, bwg_id and bw_pct per UP are not supported */
+
+ /* Use only up_map to map tc */
+ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) {
+ if (up_map & BIT(i))
+ pf->tmp_cfg.etscfg.prioritytable[i] = tc;
+ }
+ pf->tmp_cfg.etscfg.tsatable[tc] = I40E_IEEE_TSA_ETS;
+ dev_dbg(&pf->pdev->dev,
+ "Set PG config tc=%d bwg_id=%d prio_type=%d bw_pct=%d up_map=%d\n",
+ tc, bwg_id, prio_type, bw_pct, up_map);
+}
+
+/**
+ * i40e_dcbnl_set_pg_tc_cfg_tx - Set CEE PG Tx BW config
+ * @netdev: the corresponding netdev
+ * @pgid: the corresponding traffic class
+ * @bw_pct: the BW percentage for the specified traffic class
+ *
+ * Set Tx BW settings for CEE mode
+ **/
+static void i40e_dcbnl_set_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;
+
+ /* LLTC not supported yet */
+ if (pgid >= I40E_MAX_TRAFFIC_CLASS)
+ return;
+
+ pf->tmp_cfg.etscfg.tcbwtable[pgid] = bw_pct;
+ dev_dbg(&pf->pdev->dev, "Set PG BW config tc=%d bw_pct=%d\n",
+ pgid, bw_pct);
+}
+
+/**
+ * i40e_dcbnl_set_pg_tc_cfg_rx - Set CEE PG Rx config
+ * @netdev: the corresponding netdev
+ * @prio: the corresponding traffic class
+ * @prio_type: the traffic priority type
+ * @pgid: the BW group id the traffic class belongs to
+ * @bw_pct: the BW percentage for the corresponding BWG
+ * @up_map: prio mapped to corresponding tc
+ *
+ * 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_tc_cfg_rx(struct net_device *netdev,
+ int __always_unused prio,
+ u8 __always_unused prio_type,
+ u8 __always_unused pgid,
+ u8 __always_unused bw_pct,
+ u8 __always_unused up_map)
+{
+ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
+
+ dev_dbg(&pf->pdev->dev, "Rx TC PG Config Not Supported.\n");
+}
+
+/**
+ * i40e_dcbnl_set_pg_bwg_cfg_rx - Set CEE PG Rx config
+ * @netdev: the corresponding netdev
+ * @pgid: the corresponding traffic class
+ * @bw_pct: the BW percentage for the specified traffic class
+ *
+ * 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
.ieee_getets = i40e_dcbnl_ieee_getets,
.ieee_getpfc = i40e_dcbnl_ieee_getpfc,
.getdcbx = i40e_dcbnl_getdcbx,
- .getpermhwaddr = i40e_dcbnl_get_perm_hw_addr,
+ .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,
};
/**
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) && !(pf->hw.func_caps.iscsi))
+ if ((pf->flags & I40E_FLAG_MFP_ENABLED) && !(hw->func_caps.iscsi))
return;
dcbxcfg = &hw->local_dcbx_config;
projects / users / hch / configfs.git / commitdiff