/* 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
**/ staticint 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 %pe aq_err %s\n",
ERR_PTR(ret),
libie_aq_str(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
**/ staticint 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;
/** * 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
**/ staticint 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];
/** * 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);
/** * 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, test_bit(I40E_FLAG_DCB_ENA, pf->flags) ? 1 : 0); /* Nothing to do */ if (!state == !test_bit(I40E_FLAG_DCB_ENA, pf->flags)) 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
**/ staticvoid 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_bwg_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
**/ staticvoid 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;
/** * 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.
**/ staticvoid 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.
**/ staticvoid 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
**/ staticvoid 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;
/** * 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
**/ staticvoid 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;
/** * 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.
**/ staticvoid 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;
/** * 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.
**/ staticvoid 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);
/** * 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
**/ staticvoid 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;
/** * 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
**/ staticvoid 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;
/** * 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 (!test_bit(I40E_FLAG_DCB_CAPABLE, pf->flags)) 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;
}
/** * 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
**/ staticint i40e_dcbnl_getnumtcs(struct net_device *netdev, int tcid, u8 *num)
{ struct i40e_pf *pf = i40e_netdev_to_pf(netdev);
if (!test_bit(I40E_FLAG_DCB_CAPABLE, pf->flags)) 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)
**/ staticint 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
**/ staticvoid 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
**/ staticint 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;
/** * 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
**/ staticvoid i40e_dcbnl_get_perm_hw_addr(struct net_device *dev,
u8 *perm_addr)
{ struct i40e_pf *pf = i40e_netdev_to_pf(dev); int i;
memset(perm_addr, 0xff, MAX_ADDR_LEN);
for (i = 0; i < dev->addr_len; i++)
perm_addr[i] = pf->hw.mac.perm_addr[i];
}
/** * 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 (!test_bit(I40E_FLAG_DCB_ENA, pf->flags)) return;
/* MFP mode but not an iSCSI PF so return */ if (test_bit(I40E_FLAG_MFP_ENA, pf->flags) && !(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
**/ staticint 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;
/** * 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
**/ staticvoid i40e_dcbnl_del_app(struct i40e_pf *pf, struct i40e_dcb_app_priority_table *app)
{ struct i40e_vsi *vsi; int v, err;
i40e_pf_for_each_vsi(pf, v, vsi) if (vsi->netdev) {
err = i40e_dcbnl_vsi_del_app(vsi, app);
dev_dbg(&pf->pdev->dev, "Deleting app for VSI seid=%d err=%d sel=%d proto=0x%x prio=%d\n",
vsi->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
**/ staticbool 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) returntrue;
}
returnfalse;
}
/** * 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 (test_bit(I40E_FLAG_MFP_ENA, pf->flags) && !(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 (!test_bit(I40E_FLAG_DCB_CAPABLE, pf->flags)) return;
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