diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e.h | 16 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c | 316 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_debugfs.c | 31 | ||||
| -rw-r--r-- | drivers/net/ethernet/intel/i40e/i40e_main.c | 326 |
4 files changed, 669 insertions, 20 deletions
diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h index a47f3106ef6d..72dae4d97b43 100644 --- a/drivers/net/ethernet/intel/i40e/i40e.h +++ b/drivers/net/ethernet/intel/i40e/i40e.h @@ -57,6 +57,7 @@ #include "i40e_virtchnl.h" #include "i40e_virtchnl_pf.h" #include "i40e_txrx.h" +#include "i40e_dcb.h" /* Useful i40e defaults */ #define I40E_BASE_PF_SEID 16 @@ -74,6 +75,7 @@ #define I40E_DEFAULT_QUEUES_PER_VMDQ 2 /* max 16 qps */ #define I40E_DEFAULT_QUEUES_PER_VF 4 #define I40E_DEFAULT_QUEUES_PER_TC 1 /* should be a power of 2 */ +#define I40E_MAX_QUEUES_PER_TC 64 /* should be a power of 2 */ #define I40E_FDIR_RING 0 #define I40E_FDIR_RING_COUNT 32 #define I40E_MAX_AQ_BUF_SIZE 4096 @@ -163,6 +165,8 @@ struct i40e_fdir_data { u8 *raw_packet; }; +#define I40E_ETH_P_LLDP 0x88cc + #define I40E_DCB_PRIO_TYPE_STRICT 0 #define I40E_DCB_PRIO_TYPE_ETS 1 #define I40E_DCB_STRICT_PRIO_CREDITS 127 @@ -197,7 +201,6 @@ struct i40e_pf { u16 num_vmdq_msix; /* num queue vectors per vmdq pool */ u16 num_req_vfs; /* num vfs requested for this vf */ u16 num_vf_qps; /* num queue pairs per vf */ - u16 num_tc_qps; /* num queue pairs per TC */ u16 num_lan_qps; /* num lan queues this pf has set up */ u16 num_lan_msix; /* num queue vectors for the base pf vsi */ int queues_left; /* queues left unclaimed */ @@ -552,6 +555,7 @@ struct i40e_veb *i40e_veb_setup(struct i40e_pf *pf, u16 flags, u16 uplink_seid, u16 downlink_seid, u8 enabled_tc); void i40e_veb_release(struct i40e_veb *veb); +int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc); i40e_status i40e_vsi_add_pvid(struct i40e_vsi *vsi, u16 vid); void i40e_vsi_remove_pvid(struct i40e_vsi *vsi); void i40e_vsi_reset_stats(struct i40e_vsi *vsi); @@ -580,7 +584,15 @@ bool i40e_is_vsi_in_vlan(struct i40e_vsi *vsi); struct i40e_mac_filter *i40e_find_mac(struct i40e_vsi *vsi, u8 *macaddr, bool is_vf, bool is_netdev); void i40e_vlan_stripping_enable(struct i40e_vsi *vsi); - +#ifdef CONFIG_I40E_DCB +void i40e_dcbnl_flush_apps(struct i40e_pf *pf, + struct i40e_dcbx_config *new_cfg); +void i40e_dcbnl_set_all(struct i40e_vsi *vsi); +void i40e_dcbnl_setup(struct i40e_vsi *vsi); +bool i40e_dcb_need_reconfig(struct i40e_pf *pf, + struct i40e_dcbx_config *old_cfg, + struct i40e_dcbx_config *new_cfg); +#endif /* CONFIG_I40E_DCB */ void i40e_ptp_rx_hang(struct i40e_vsi *vsi); void i40e_ptp_tx_hwtstamp(struct i40e_pf *pf); void i40e_ptp_rx_hwtstamp(struct i40e_pf *pf, struct sk_buff *skb, u8 index); diff --git a/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c new file mode 100644 index 000000000000..6e8103abfd0d --- /dev/null +++ b/drivers/net/ethernet/intel/i40e/i40e_dcb_nl.c @@ -0,0 +1,316 @@ +/******************************************************************************* + * + * Intel Ethernet Controller XL710 Family Linux Driver + * Copyright(c) 2013 - 2014 Intel Corporation. + * + * This program is free software; you can redistribute it and/or modify it + * under the terms and conditions of the GNU General Public License, + * version 2, as published by the Free Software Foundation. + * + * This program is distributed in the hope it will be useful, but WITHOUT + * ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or + * FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for + * more details. + * + * You should have received a copy of the GNU General Public License along + * with this program. If not, see <http://www.gnu.org/licenses/>. + * + * The full GNU General Public License is included in this distribution in + * the file called "COPYING". + * + * Contact Information: + * e1000-devel Mailing List <e1000-devel@lists.sourceforge.net> + * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497 + * + ******************************************************************************/ + +#ifdef CONFIG_I40E_DCB +#include "i40e.h" +#include <net/dcbnl.h> + +/** + * i40e_get_pfc_delay - retrieve PFC Link Delay + * @hw: pointer to hardware struct + * @delay: holds the PFC Link delay value + * + * Returns PFC Link Delay from the PRTDCB_GENC.PFCLDA + **/ +static void i40e_get_pfc_delay(struct i40e_hw *hw, u16 *delay) +{ + u32 val; + + val = rd32(hw, I40E_PRTDCB_GENC); + *delay = (u16)(val & I40E_PRTDCB_GENC_PFCLDA_MASK >> + I40E_PRTDCB_GENC_PFCLDA_SHIFT); +} + +/** + * i40e_dcbnl_ieee_getets - retrieve local IEEE ETS configuration + * @netdev: the corresponding netdev + * @ets: structure to hold the ETS information + * + * Returns local IEEE ETS configuration + **/ +static int i40e_dcbnl_ieee_getets(struct net_device *dev, + struct ieee_ets *ets) +{ + 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; + ets->willing = dcbxcfg->etscfg.willing; + ets->ets_cap = dcbxcfg->etscfg.maxtcs; + ets->cbs = dcbxcfg->etscfg.cbs; + memcpy(ets->tc_tx_bw, dcbxcfg->etscfg.tcbwtable, + sizeof(ets->tc_tx_bw)); + memcpy(ets->tc_rx_bw, dcbxcfg->etscfg.tcbwtable, + sizeof(ets->tc_rx_bw)); + memcpy(ets->tc_tsa, dcbxcfg->etscfg.tsatable, + sizeof(ets->tc_tsa)); + memcpy(ets->prio_tc, dcbxcfg->etscfg.prioritytable, + sizeof(ets->prio_tc)); + memcpy(ets->tc_reco_bw, dcbxcfg->etsrec.tcbwtable, + sizeof(ets->tc_reco_bw)); + memcpy(ets->tc_reco_tsa, dcbxcfg->etsrec.tsatable, + sizeof(ets->tc_reco_tsa)); + memcpy(ets->reco_prio_tc, dcbxcfg->etscfg.prioritytable, + sizeof(ets->reco_prio_tc)); + + return 0; +} + +/** + * i40e_dcbnl_ieee_getpfc - retrieve local IEEE PFC configuration + * @netdev: the corresponding netdev + * @ets: structure to hold the PFC information + * + * Returns local IEEE PFC configuration + **/ +static int i40e_dcbnl_ieee_getpfc(struct net_device *dev, + struct ieee_pfc *pfc) +{ + struct i40e_pf *pf = i40e_netdev_to_pf(dev); + struct i40e_dcbx_config *dcbxcfg; + struct i40e_hw *hw = &pf->hw; + int i; + + if (!(pf->dcbx_cap & DCB_CAP_DCBX_VER_IEEE)) + return -EINVAL; + + dcbxcfg = &hw->local_dcbx_config; + pfc->pfc_cap = dcbxcfg->pfc.pfccap; + pfc->pfc_en = dcbxcfg->pfc.pfcenable; + pfc->mbc = dcbxcfg->pfc.mbc; + i40e_get_pfc_delay(hw, &pfc->delay); + + /* Get Requests/Indicatiosn */ + 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_getdcbx - retrieve current DCBx capability + * @netdev: 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 + * @netdev: the corresponding netdev + * + * 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, +}; + +/** + * 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; + + /* DCB not enabled */ + if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) + 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 = (1 << 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_ieee_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_ieee_app_priority_table *app) +{ + int v, err; + for (v = 0; v < pf->hw.func_caps.num_vsis; v++) { + if (pf->vsi[v] && pf->vsi[v]->netdev) { + err = i40e_dcbnl_vsi_del_app(pf->vsi[v], app); + if (err) + dev_info(&pf->pdev->dev, "%s: Failed deleting app for VSI seid=%d err=%d sel=%d proto=0x%x prio=%d\n", + __func__, 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_ieee_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 + * @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 *new_cfg) +{ + struct i40e_ieee_app_priority_table app; + struct i40e_dcbx_config *dcbxcfg; + struct i40e_hw *hw = &pf->hw; + int i; + + dcbxcfg = &hw->local_dcbx_config; + for (i = 0; i < dcbxcfg->numapps; i++) { + app = dcbxcfg->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); + + /* DCB not enabled */ + if (!(pf->flags & I40E_FLAG_DCB_ENABLED)) + return; + + /* Do not setup DCB NL ops for MFP mode */ + if (!(pf->flags & I40E_FLAG_MFP_ENABLED)) + dev->dcbnl_ops = &dcbnl_ops; + + /* Set initial IEEE DCB settings */ + i40e_dcbnl_set_all(vsi); +} +#endif /* CONFIG_I40E_DCB */ diff --git a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c index 3d07aedf9d4f..da22c3fa2c00 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_debugfs.c +++ b/drivers/net/ethernet/intel/i40e/i40e_debugfs.c @@ -1748,8 +1748,35 @@ static ssize_t i40e_dbg_command_write(struct file *filp, pf->hw.aq.asq_last_status); goto command_write_done; } + ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, + pf->hw.mac.addr, + I40E_ETH_P_LLDP, 0, + pf->vsi[pf->lan_vsi]->seid, + 0, true, NULL, NULL); + if (ret) { + dev_info(&pf->pdev->dev, + "%s: Add Control Packet Filter AQ command failed =0x%x\n", + __func__, pf->hw.aq.asq_last_status); + goto command_write_done; + } +#ifdef CONFIG_I40E_DCB + pf->dcbx_cap = DCB_CAP_DCBX_HOST | + DCB_CAP_DCBX_VER_IEEE; +#endif /* CONFIG_I40E_DCB */ } else if (strncmp(&cmd_buf[5], "start", 5) == 0) { int ret; + ret = i40e_aq_add_rem_control_packet_filter(&pf->hw, + pf->hw.mac.addr, + I40E_ETH_P_LLDP, 0, + pf->vsi[pf->lan_vsi]->seid, + 0, false, NULL, NULL); + if (ret) { + dev_info(&pf->pdev->dev, + "%s: Remove Control Packet Filter AQ command failed =0x%x\n", + __func__, pf->hw.aq.asq_last_status); + /* Continue and start FW LLDP anyways */ + } + ret = i40e_aq_start_lldp(&pf->hw, NULL); if (ret) { dev_info(&pf->pdev->dev, @@ -1757,6 +1784,10 @@ static ssize_t i40e_dbg_command_write(struct file *filp, pf->hw.aq.asq_last_status); goto command_write_done; } +#ifdef CONFIG_I40E_DCB + pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | + DCB_CAP_DCBX_VER_IEEE; +#endif /* CONFIG_I40E_DCB */ } else if (strncmp(&cmd_buf[5], "get local", 9) == 0) { u16 llen, rlen; diff --git a/drivers/net/ethernet/intel/i40e/i40e_main.c b/drivers/net/ethernet/intel/i40e/i40e_main.c index 0dd578f5d803..3a9ede6ad215 100644 --- a/drivers/net/ethernet/intel/i40e/i40e_main.c +++ b/drivers/net/ethernet/intel/i40e/i40e_main.c @@ -55,6 +55,7 @@ static int i40e_setup_misc_vector(struct i40e_pf *pf); static void i40e_determine_queue_usage(struct i40e_pf *pf); static int i40e_setup_pf_filter_control(struct i40e_pf *pf); static void i40e_fdir_sb_setup(struct i40e_pf *pf); +static int i40e_veb_get_bw_info(struct i40e_veb *veb); /* i40e_pci_tbl - PCI Device ID Table * @@ -1272,6 +1273,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, u8 offset; u16 qmap; int i; + u16 num_tc_qps = 0; sections = I40E_AQ_VSI_PROP_QUEUE_MAP_VALID; offset = 0; @@ -1293,6 +1295,9 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, vsi->tc_config.numtc = numtc; vsi->tc_config.enabled_tc = enabled_tc ? enabled_tc : 1; + /* Number of queues per enabled TC */ + num_tc_qps = rounddown_pow_of_two(vsi->alloc_queue_pairs/numtc); + num_tc_qps = min_t(int, num_tc_qps, I40E_MAX_QUEUES_PER_TC); /* Setup queue offset/count for all TCs for given VSI */ for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { @@ -1300,30 +1305,25 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, if (vsi->tc_config.enabled_tc & (1 << i)) { /* TC is enabled */ int pow, num_qps; - vsi->tc_config.tc_info[i].qoffset = offset; switch (vsi->type) { case I40E_VSI_MAIN: - if (i == 0) - qcount = pf->rss_size; - else - qcount = pf->num_tc_qps; - vsi->tc_config.tc_info[i].qcount = qcount; + qcount = min_t(int, pf->rss_size, num_tc_qps); break; case I40E_VSI_FDIR: case I40E_VSI_SRIOV: case I40E_VSI_VMDQ2: default: - qcount = vsi->alloc_queue_pairs; - vsi->tc_config.tc_info[i].qcount = qcount; + qcount = num_tc_qps; WARN_ON(i != 0); break; } + vsi->tc_config.tc_info[i].qoffset = offset; + vsi->tc_config.tc_info[i].qcount = qcount; /* find the power-of-2 of the number of queue pairs */ - num_qps = vsi->tc_config.tc_info[i].qcount; + num_qps = qcount; pow = 0; - while (num_qps && - ((1 << pow) < vsi->tc_config.tc_info[i].qcount)) { + while (num_qps && ((1 << pow) < qcount)) { pow++; num_qps >>= 1; } @@ -1333,7 +1333,7 @@ static void i40e_vsi_setup_queue_map(struct i40e_vsi *vsi, (offset << I40E_AQ_VSI_TC_QUE_OFFSET_SHIFT) | (pow << I40E_AQ_VSI_TC_QUE_NUMBER_SHIFT); - offset += vsi->tc_config.tc_info[i].qcount; + offset += qcount; } else { /* TC is not enabled so set the offset to * default queue and allocate one queue @@ -2162,6 +2162,7 @@ static int i40e_configure_tx_ring(struct i40e_ring *ring) /* initialize XPS */ if (ring->q_vector && ring->netdev && + vsi->tc_config.numtc <= 1 && !test_and_set_bit(__I40E_TX_XPS_INIT_DONE, &ring->state)) netif_set_xps_queue(ring->netdev, &ring->q_vector->affinity_mask, @@ -3888,6 +3889,149 @@ out: } /** + * i40e_veb_config_tc - Configure TCs for given VEB + * @veb: given VEB + * @enabled_tc: TC bitmap + * + * Configures given TC bitmap for VEB (switching) element + **/ +int i40e_veb_config_tc(struct i40e_veb *veb, u8 enabled_tc) +{ + struct i40e_aqc_configure_switching_comp_bw_config_data bw_data = {0}; + struct i40e_pf *pf = veb->pf; + int ret = 0; + int i; + + /* No TCs or already enabled TCs just return */ + if (!enabled_tc || veb->enabled_tc == enabled_tc) + return ret; + + bw_data.tc_valid_bits = enabled_tc; + /* bw_data.absolute_credits is not set (relative) */ + + /* Enable ETS TCs with equal BW Share for now */ + for (i = 0; i < I40E_MAX_TRAFFIC_CLASS; i++) { + if (enabled_tc & (1 << i)) + bw_data.tc_bw_share_credits[i] = 1; + } + + ret = i40e_aq_config_switch_comp_bw_config(&pf->hw, veb->seid, + &bw_data, NULL); + if (ret) { + dev_info(&pf->pdev->dev, + "veb bw config failed, aq_err=%d\n", + pf->hw.aq.asq_last_status); + goto out; + } + + /* Update the BW information */ + ret = i40e_veb_get_bw_info(veb); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed getting veb bw config, aq_err=%d\n", + pf->hw.aq.asq_last_status); + } + +out: + return ret; +} + +#ifdef CONFIG_I40E_DCB +/** + * i40e_dcb_reconfigure - Reconfigure all VEBs and VSIs + * @pf: PF struct + * + * Reconfigure VEB/VSIs on a given PF; it is assumed that + * the caller would've quiesce all the VSIs before calling + * this function + **/ +static void i40e_dcb_reconfigure(struct i40e_pf *pf) +{ + u8 tc_map = 0; + int ret; + u8 v; + + /* Enable the TCs available on PF to all VEBs */ + tc_map = i40e_pf_get_tc_map(pf); + for (v = 0; v < I40E_MAX_VEB; v++) { + if (!pf->veb[v]) + continue; + ret = i40e_veb_config_tc(pf->veb[v], tc_map); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed configuring TC for VEB seid=%d\n", + pf->veb[v]->seid); + /* Will try to configure as many components */ + } + } + + /* Update each VSI */ + for (v = 0; v < pf->hw.func_caps.num_vsis; v++) { + if (!pf->vsi[v]) + continue; + + /* - Enable all TCs for the LAN VSI + * - For all others keep them at TC0 for now + */ + if (v == pf->lan_vsi) + tc_map = i40e_pf_get_tc_map(pf); + else + tc_map = i40e_pf_get_default_tc(pf); + + ret = i40e_vsi_config_tc(pf->vsi[v], tc_map); + if (ret) { + dev_info(&pf->pdev->dev, + "Failed configuring TC for VSI seid=%d\n", + pf->vsi[v]->seid); + /* Will try to configure as many components */ + } else { + if (pf->vsi[v]->netdev) + i40e_dcbnl_set_all(pf->vsi[v]); + } + } +} + +/** + * i40e_init_pf_dcb - Initialize DCB configuration + * @pf: PF being configured + * + * Query the current DCB configuration and cache it + * in the hardware structure + **/ +static int i40e_init_pf_dcb(struct i40e_pf *pf) +{ + struct i40e_hw *hw = &pf->hw; + int err = 0; + + if (pf->hw.func_caps.npar_enable) + goto out; + + /* Get the initial DCB configuration */ + err = i40e_init_dcb(hw); + if (!err) { + /* Device/Function is not DCBX capable */ + if ((!hw->func_caps.dcb) || + (hw->dcbx_status == I40E_DCBX_STATUS_DISABLED)) { + dev_info(&pf->pdev->dev, + "DCBX offload is not supported or is disabled for this PF.\n"); + + if (pf->flags & I40E_FLAG_MFP_ENABLED) + goto out; + + } else { + /* When status is not DISABLED then DCBX in FW */ + pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | + DCB_CAP_DCBX_VER_IEEE; + pf->flags |= I40E_FLAG_DCB_ENABLED; + } + } + +out: + return err; +} +#endif /* CONFIG_I40E_DCB */ + +/** * i40e_up_complete - Finish the last steps of bringing up a connection * @vsi: the VSI being configured **/ @@ -4249,6 +4393,130 @@ void i40e_do_reset(struct i40e_pf *pf, u32 reset_flags) } } +#ifdef CONFIG_I40E_DCB +/** + * i40e_dcb_need_reconfig - Check if DCB needs reconfig + * @pf: board private structure + * @old_cfg: current DCB config + * @new_cfg: new DCB config + **/ +bool i40e_dcb_need_reconfig(struct i40e_pf *pf, + struct i40e_dcbx_config *old_cfg, + struct i40e_dcbx_config *new_cfg) +{ + bool need_reconfig = false; + + /* Check if ETS configuration has changed */ + if (memcmp(&new_cfg->etscfg, + &old_cfg->etscfg, + sizeof(new_cfg->etscfg))) { + /* If Priority Table has changed reconfig is needed */ + if (memcmp(&new_cfg->etscfg.prioritytable, + &old_cfg->etscfg.prioritytable, + sizeof(new_cfg->etscfg.prioritytable))) { + need_reconfig = true; + dev_info(&pf->pdev->dev, "ETS UP2TC changed.\n"); + } + + if (memcmp(&new_cfg->etscfg.tcbwtable, + &old_cfg->etscfg.tcbwtable, + sizeof(new_cfg->etscfg.tcbwtable))) + dev_info(&pf->pdev->dev, "ETS TC BW Table changed.\n"); + + if (memcmp(&new_cfg->etscfg.tsatable, + &old_cfg->etscfg.tsatable, + sizeof(new_cfg->etscfg.tsatable))) + dev_info(&pf->pdev->dev, "ETS TSA Table changed.\n"); + } + + /* Check if PFC configuration has changed */ + if (memcmp(&new_cfg->pfc, + &old_cfg->pfc, + sizeof(new_cfg->pfc))) { + need_reconfig = true; + dev_info(&pf->pdev->dev, "PFC config change detected.\n"); + } + + /* Check if APP Table has changed */ + if (memcmp(&new_cfg->app, + &old_cfg->app, + sizeof(new_cfg->app))) + need_reconfig = true; + dev_info(&pf->pdev->dev, "APP Table change detected.\n"); + + return need_reconfig; +} + +/** + * i40e_handle_lldp_event - Handle LLDP Change MIB event + * @pf: board private structure + * @e: event info posted on ARQ + **/ +static int i40e_handle_lldp_event(struct i40e_pf *pf, + struct i40e_arq_event_info *e) +{ + struct i40e_aqc_lldp_get_mib *mib = + (struct i40e_aqc_lldp_get_mib *)&e->desc.params.raw; + struct i40e_hw *hw = &pf->hw; + struct i40e_dcbx_config *dcbx_cfg = &hw->local_dcbx_config; + struct i40e_dcbx_config tmp_dcbx_cfg; + bool need_reconfig = false; + int ret = 0; + u8 type; + + /* Ignore if event is not for Nearest Bridge */ + type = ((mib->type >> I40E_AQ_LLDP_BRIDGE_TYPE_SHIFT) + & I40E_AQ_LLDP_BRIDGE_TYPE_MASK); + if (type != I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE) + return ret; + + /* Check MIB Type and return if event for Remote MIB update */ + type = mib->type & I40E_AQ_LLDP_MIB_TYPE_MASK; + if (type == I40E_AQ_LLDP_MIB_REMOTE) { + /* Update the remote cached instance and return */ + ret = i40e_aq_get_dcb_config(hw, I40E_AQ_LLDP_MIB_REMOTE, + I40E_AQ_LLDP_BRIDGE_TYPE_NEAREST_BRIDGE, + &hw->remote_dcbx_config); + goto exit; + } + + /* Convert/store the DCBX data from LLDPDU temporarily */ + memset(&tmp_dcbx_cfg, 0, sizeof(tmp_dcbx_cfg)); + ret = i40e_lldp_to_dcb_config(e->msg_buf, &tmp_dcbx_cfg); + if (ret) { + /* Error in LLDPDU parsing return */ + dev_info(&pf->pdev->dev, "Failed parsing LLDPDU from event buffer\n"); + goto exit; + } + + /* No change detected in DCBX configs */ + if (!memcmp(&tmp_dcbx_cfg, dcbx_cfg, sizeof(tmp_dcbx_cfg))) { + dev_info(&pf->pdev->dev, "No change detected in DCBX configuration.\n"); + goto exit; + } + + need_reconfig = i40e_dcb_need_reconfig(pf, dcbx_cfg, &tmp_dcbx_cfg); + + i40e_dcbnl_flush_apps(pf, &tmp_dcbx_cfg); + + /* Overwrite the new configuration */ + *dcbx_cfg = tmp_dcbx_cfg; + + if (!need_reconfig) + goto exit; + + /* Reconfiguration needed quiesce all VSIs */ + i40e_pf_quiesce_all_vsi(pf); + + /* Changes in configuration update VEB/VSI */ + i40e_dcb_reconfigure(pf); + + i40e_pf_unquiesce_all_vsi(pf); +exit: + return ret; +} +#endif /* CONFIG_I40E_DCB */ + /** * i40e_do_reset_safe - Protected reset path for userland calls. * @pf: board private structure @@ -4635,6 +4903,11 @@ static void i40e_clean_adminq_subtask(struct i40e_pf *pf) break; case i40e_aqc_opc_lldp_update_mib: dev_info(&pf->pdev->dev, "ARQ: Update LLDP MIB event received\n"); +#ifdef CONFIG_I40E_DCB + rtnl_lock(); + ret = i40e_handle_lldp_event(pf, &event); + rtnl_unlock(); +#endif /* CONFIG_I40E_DCB */ break; case i40e_aqc_opc_event_lan_overflow: dev_info(&pf->pdev->dev, "ARQ LAN queue overflow event received\n"); @@ -4983,6 +5256,14 @@ static void i40e_reset_and_rebuild(struct i40e_pf *pf, bool reinit) goto end_core_reset; } +#ifdef CONFIG_I40E_DCB + ret = i40e_init_pf_dcb(pf); + if (ret) { + dev_info(&pf->pdev->dev, "init_pf_dcb failed: %d\n", ret); + goto end_core_reset; + } +#endif /* CONFIG_I40E_DCB */ + /* do basic switch setup */ ret = i40e_setup_pf_switch(pf, reinit); if (ret) @@ -5971,11 +6252,6 @@ static int i40e_sw_init(struct i40e_pf *pf) dev_info(&pf->pdev->dev, "MFP mode Enabled\n"); } - if (pf->hw.func_caps.dcb) - pf->num_tc_qps = I40E_DEFAULT_QUEUES_PER_TC; - else - pf->num_tc_qps = 0; - /* FW/NVM is not yet fixed in this regard */ if ((pf->hw.func_caps.fd_filters_guaranteed > 0) || (pf->hw.func_caps.fd_filters_best_effort > 0)) { @@ -6779,6 +7055,10 @@ struct i40e_vsi *i40e_vsi_setup(struct i40e_pf *pf, u8 type, goto err_netdev; vsi->netdev_registered = true; netif_carrier_off(vsi->netdev); +#ifdef CONFIG_I40E_DCB + /* Setup DCB netlink interface */ + i40e_dcbnl_setup(vsi); +#endif /* CONFIG_I40E_DCB */ /* fall through */ case I40E_VSI_FDIR: @@ -7450,7 +7730,6 @@ static void i40e_determine_queue_usage(struct i40e_pf *pf) int queues_left; pf->num_lan_qps = 0; - pf->num_tc_qps = rounddown_pow_of_two(pf->num_tc_qps); /* Find the max queues to be put into basic use. We'll always be * using TC0, whether or not DCB is running, and TC0 will get the @@ -7718,6 +7997,14 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent) pci_set_drvdata(pdev, pf); pci_save_state(pdev); +#ifdef CONFIG_I40E_DCB + err = i40e_init_pf_dcb(pf); + if (err) { + dev_info(&pdev->dev, "init_pf_dcb failed: %d\n", err); + pf->flags &= ~I40E_FLAG_DCB_ENABLED; + goto err_init_dcb; + } +#endif /* CONFIG_I40E_DCB */ /* set up periodic task facility */ setup_timer(&pf->service_timer, i40e_service_timer, (unsigned long)pf); @@ -7831,6 +8118,9 @@ err_vsis: err_switch_setup: i40e_reset_interrupt_capability(pf); del_timer_sync(&pf->service_timer); +#ifdef CONFIG_I40E_DCB +err_init_dcb: +#endif /* CONFIG_I40E_DCB */ err_mac_addr: err_configure_lan_hmc: (void)i40e_shutdown_lan_hmc(hw); |