diff --git a/drivers/net/ethernet/intel/i40e/i40e.h b/drivers/net/ethernet/intel/i40e/i40e.h
index a47f3106ef6d3256e22b05f6c1e2a81e7a606882..72dae4d97b43e37690fe74818b818d3a9a1e14dc 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 0000000000000000000000000000000000000000..6e8103abfd0d699401f29287ea63cfba799a2fe1
--- /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 .
+ *
+ * The full GNU General Public License is included in this distribution in
+ * the file called "COPYING".
+ *
+ * Contact Information:
+ * e1000-devel Mailing List
+ * Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
+ *
+ ******************************************************************************/
+
+#ifdef CONFIG_I40E_DCB
+#include "i40e.h"
+#include
+
+/**
+ * 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 3d07aedf9d4f0cb1aa6347beabd1a9fb30834365..da22c3fa2c004a23adb8545ee01058d3dd0b2e3f 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 0dd578f5d8034dc4ead75fa1c88bd4bacfae36cf..3a9ede6ad215e53e2331df9a75f11028f1ce1d35 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,
@@ -3887,6 +3888,149 @@ static int i40e_vsi_config_tc(struct i40e_vsi *vsi, u8 enabled_tc)
return ret;
}
+/**
+ * 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 @@ static int i40e_probe(struct pci_dev *pdev, const struct pci_device_id *ent)
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);