Merge git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from David Miller:

 1) Support IPV6 RA Captive Portal Identifier, from Maciej Żenczykowski.

 2) Use bio_vec in the networking instead of custom skb_frag_t, from
    Matthew Wilcox.

 3) Make use of xmit_more in r8169 driver, from Heiner Kallweit.

 4) Add devmap_hash to xdp, from Toke Høiland-Jørgensen.

 5) Support all variants of 5750X bnxt_en chips, from Michael Chan.

 6) More RTNL avoidance work in the core and mlx5 driver, from Vlad
    Buslov.

 7) Add TCP syn cookies bpf helper, from Petar Penkov.

 8) Add 'nettest' to selftests and use it, from David Ahern.

 9) Add extack support to drop_monitor, add packet alert mode and
    support for HW drops, from Ido Schimmel.

10) Add VLAN offload to stmmac, from Jose Abreu.

11) Lots of devm_platform_ioremap_resource() conversions, from
    YueHaibing.

12) Add IONIC driver, from Shannon Nelson.

13) Several kTLS cleanups, from Jakub Kicinski.

* git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1930 commits)
  mlxsw: spectrum_buffers: Add the ability to query the CPU port's shared buffer
  mlxsw: spectrum: Register CPU port with devlink
  mlxsw: spectrum_buffers: Prevent changing CPU port's configuration
  net: ena: fix incorrect update of intr_delay_resolution
  net: ena: fix retrieval of nonadaptive interrupt moderation intervals
  net: ena: fix update of interrupt moderation register
  net: ena: remove all old adaptive rx interrupt moderation code from ena_com
  net: ena: remove ena_restore_ethtool_params() and relevant fields
  net: ena: remove old adaptive interrupt moderation code from ena_netdev
  net: ena: remove code duplication in ena_com_update_nonadaptive_moderation_interval _*()
  net: ena: enable the interrupt_moderation in driver_supported_features
  net: ena: reimplement set/get_coalesce()
  net: ena: switch to dim algorithm for rx adaptive interrupt moderation
  net: ena: add intr_moder_rx_interval to struct ena_com_dev and use it
  net: phy: adin: implement Energy Detect Powerdown mode via phy-tunable
  ethtool: implement Energy Detect Powerdown support via phy-tunable
  xen-netfront: do not assume sk_buff_head list is empty in error handling
  s390/ctcm: Delete unnecessary checks before the macro call “dev_kfree_skb”
  net: ena: don't wake up tx queue when down
  drop_monitor: Better sanitize notified packets
  ...

1 files changed, 161 insertions, 98 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
index fe88b127ca42..dd47869c4ad4 100644
--- a/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
+++ b/drivers/net/ethernet/intel/ice/ice_dcb_lib.c
@@ -4,6 +4,48 @@
 #include "ice_dcb_lib.h"
 
 /**
+ * ice_vsi_cfg_netdev_tc - Setup the netdev TC configuration
+ * @vsi: the VSI being configured
+ * @ena_tc: TC map to be enabled
+ */
+void ice_vsi_cfg_netdev_tc(struct ice_vsi *vsi, u8 ena_tc)
+{
+	struct net_device *netdev = vsi->netdev;
+	struct ice_pf *pf = vsi->back;
+	struct ice_dcbx_cfg *dcbcfg;
+	u8 netdev_tc;
+	int i;
+
+	if (!netdev)
+		return;
+
+	if (!ena_tc) {
+		netdev_reset_tc(netdev);
+		return;
+	}
+
+	if (netdev_set_num_tc(netdev, vsi->tc_cfg.numtc))
+		return;
+
+	dcbcfg = &pf->hw.port_info->local_dcbx_cfg;
+
+	ice_for_each_traffic_class(i)
+		if (vsi->tc_cfg.ena_tc & BIT(i))
+			netdev_set_tc_queue(netdev,
+					    vsi->tc_cfg.tc_info[i].netdev_tc,
+					    vsi->tc_cfg.tc_info[i].qcount_tx,
+					    vsi->tc_cfg.tc_info[i].qoffset);
+
+	for (i = 0; i < ICE_MAX_USER_PRIORITY; i++) {
+		u8 ets_tc = dcbcfg->etscfg.prio_table[i];
+
+		/* Get the mapped netdev TC# for the UP */
+		netdev_tc = vsi->tc_cfg.tc_info[ets_tc].netdev_tc;
+		netdev_set_prio_tc_map(netdev, i, netdev_tc);
+	}
+}
+
+/**
  * ice_dcb_get_ena_tc - return bitmap of enabled TCs
  * @dcbcfg: DCB config to evaluate for enabled TCs
  */
@@ -204,15 +246,86 @@ out:
 }
 
 /**
+ * ice_cfg_etsrec_defaults - Set default ETS recommended DCB config
+ * @pi: port information structure
+ */
+static void ice_cfg_etsrec_defaults(struct ice_port_info *pi)
+{
+	struct ice_dcbx_cfg *dcbcfg = &pi->local_dcbx_cfg;
+	u8 i;
+
+	/* Ensure ETS recommended DCB configuration is not already set */
+	if (dcbcfg->etsrec.maxtcs)
+		return;
+
+	/* In CEE mode, set the default to 1 TC */
+	dcbcfg->etsrec.maxtcs = 1;
+	for (i = 0; i < ICE_MAX_TRAFFIC_CLASS; i++) {
+		dcbcfg->etsrec.tcbwtable[i] = i ? 0 : 100;
+		dcbcfg->etsrec.tsatable[i] = i ? ICE_IEEE_TSA_STRICT :
+						 ICE_IEEE_TSA_ETS;
+	}
+}
+
+/**
+ * ice_dcb_need_recfg - Check if DCB needs reconfig
+ * @pf: board private structure
+ * @old_cfg: current DCB config
+ * @new_cfg: new DCB config
+ */
+static bool
+ice_dcb_need_recfg(struct ice_pf *pf, struct ice_dcbx_cfg *old_cfg,
+		   struct ice_dcbx_cfg *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.prio_table,
+			   &old_cfg->etscfg.prio_table,
+			   sizeof(new_cfg->etscfg.prio_table))) {
+			need_reconfig = true;
+			dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n");
+		}
+
+		if (memcmp(&new_cfg->etscfg.tcbwtable,
+			   &old_cfg->etscfg.tcbwtable,
+			   sizeof(new_cfg->etscfg.tcbwtable)))
+			dev_dbg(&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_dbg(&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_dbg(&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_dbg(&pf->pdev->dev, "APP Table change detected.\n");
+	}
+
+	dev_dbg(&pf->pdev->dev, "dcb need_reconfig=%d\n", need_reconfig);
+	return need_reconfig;
+}
+
+/**
  * ice_dcb_rebuild - rebuild DCB post reset
  * @pf: physical function instance
  */
 void ice_dcb_rebuild(struct ice_pf *pf)
 {
+	struct ice_dcbx_cfg *local_dcbx_cfg, *desired_dcbx_cfg, *prev_cfg;
 	struct ice_aqc_port_ets_elem buf = { 0 };
-	struct ice_dcbx_cfg *prev_cfg;
 	enum ice_status ret;
-	u8 willing;
 
 	ret = ice_query_port_ets(pf->hw.port_info, &buf, sizeof(buf), NULL);
 	if (ret) {
@@ -224,9 +337,15 @@ void ice_dcb_rebuild(struct ice_pf *pf)
 	if (!test_bit(ICE_FLAG_DCB_ENA, pf->flags))
 		return;
 
+	local_dcbx_cfg = &pf->hw.port_info->local_dcbx_cfg;
+	desired_dcbx_cfg = &pf->hw.port_info->desired_dcbx_cfg;
+
 	/* Save current willing state and force FW to unwilling */
-	willing = pf->hw.port_info->local_dcbx_cfg.etscfg.willing;
-	pf->hw.port_info->local_dcbx_cfg.etscfg.willing = 0x0;
+	local_dcbx_cfg->etscfg.willing = 0x0;
+	local_dcbx_cfg->pfc.willing = 0x0;
+	local_dcbx_cfg->app_mode = ICE_DCBX_APPS_NON_WILLING;
+
+	ice_cfg_etsrec_defaults(pf->hw.port_info);
 	ret = ice_set_dcb_cfg(pf->hw.port_info);
 	if (ret) {
 		dev_err(&pf->pdev->dev, "Failed to set DCB to unwilling\n");
@@ -234,31 +353,37 @@ void ice_dcb_rebuild(struct ice_pf *pf)
 	}
 
 	/* Retrieve DCB config and ensure same as current in SW */
-	prev_cfg = devm_kmemdup(&pf->pdev->dev,
-				&pf->hw.port_info->local_dcbx_cfg,
+	prev_cfg = devm_kmemdup(&pf->pdev->dev, local_dcbx_cfg,
 				sizeof(*prev_cfg), GFP_KERNEL);
 	if (!prev_cfg) {
 		dev_err(&pf->pdev->dev, "Failed to alloc space for DCB cfg\n");
 		goto dcb_error;
 	}
 
-	ice_init_dcb(&pf->hw);
-	if (memcmp(prev_cfg, &pf->hw.port_info->local_dcbx_cfg,
-		   sizeof(*prev_cfg))) {
+	ice_init_dcb(&pf->hw, true);
+	if (pf->hw.port_info->dcbx_status == ICE_DCBX_STATUS_DIS)
+		pf->hw.port_info->is_sw_lldp = true;
+	else
+		pf->hw.port_info->is_sw_lldp = false;
+
+	if (ice_dcb_need_recfg(pf, prev_cfg, local_dcbx_cfg)) {
 		/* difference in cfg detected - disable DCB till next MIB */
 		dev_err(&pf->pdev->dev, "Set local MIB not accurate\n");
-		devm_kfree(&pf->pdev->dev, prev_cfg);
 		goto dcb_error;
 	}
 
 	/* fetched config congruent to previous configuration */
 	devm_kfree(&pf->pdev->dev, prev_cfg);
 
-	/* Configuration replayed - reset willing state to previous */
-	pf->hw.port_info->local_dcbx_cfg.etscfg.willing = willing;
+	/* Set the local desired config */
+	if (local_dcbx_cfg->dcbx_mode == ICE_DCBX_MODE_CEE)
+		memcpy(local_dcbx_cfg, desired_dcbx_cfg,
+		       sizeof(*local_dcbx_cfg));
+
+	ice_cfg_etsrec_defaults(pf->hw.port_info);
 	ret = ice_set_dcb_cfg(pf->hw.port_info);
 	if (ret) {
-		dev_err(&pf->pdev->dev, "Fail restoring prev willing state\n");
+		dev_err(&pf->pdev->dev, "Failed to set desired config\n");
 		goto dcb_error;
 	}
 	dev_info(&pf->pdev->dev, "DCB restored after reset\n");
@@ -330,7 +455,7 @@ static int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool locked)
 	memset(&pi->local_dcbx_cfg, 0, sizeof(*dcbcfg));
 
 	dcbcfg->etscfg.willing = 1;
-	dcbcfg->etscfg.maxtcs = 8;
+	dcbcfg->etscfg.maxtcs = hw->func_caps.common_cap.maxtc;
 	dcbcfg->etscfg.tcbwtable[0] = 100;
 	dcbcfg->etscfg.tsatable[0] = ICE_IEEE_TSA_ETS;
 
@@ -339,7 +464,7 @@ static int ice_dcb_sw_dflt_cfg(struct ice_pf *pf, bool locked)
 	dcbcfg->etsrec.willing = 0;
 
 	dcbcfg->pfc.willing = 1;
-	dcbcfg->pfc.pfccap = IEEE_8021QAZ_MAX_TCS;
+	dcbcfg->pfc.pfccap = hw->func_caps.common_cap.maxtc;
 
 	dcbcfg->numapps = 1;
 	dcbcfg->app[0].selector = ICE_APP_SEL_ETHTYPE;
@@ -364,35 +489,24 @@ int ice_init_pf_dcb(struct ice_pf *pf, bool locked)
 	struct device *dev = &pf->pdev->dev;
 	struct ice_port_info *port_info;
 	struct ice_hw *hw = &pf->hw;
-	int sw_default = 0;
 	int err;
 
 	port_info = hw->port_info;
 
-	err = ice_init_dcb(hw);
-	if (err) {
-		/* FW LLDP is not active, default to SW DCBX/LLDP */
-		dev_info(&pf->pdev->dev, "FW LLDP is not active\n");
-		hw->port_info->dcbx_status = ICE_DCBX_STATUS_NOT_STARTED;
-		hw->port_info->is_sw_lldp = true;
-	}
-
-	if (port_info->dcbx_status == ICE_DCBX_STATUS_DIS)
-		dev_info(&pf->pdev->dev, "DCBX disabled\n");
-
-	/* LLDP disabled in FW */
-	if (port_info->is_sw_lldp) {
-		sw_default = 1;
-		dev_info(&pf->pdev->dev, "DCBx/LLDP in SW mode.\n");
-		clear_bit(ICE_FLAG_ENABLE_FW_LLDP, pf->flags);
-	} else {
-		set_bit(ICE_FLAG_ENABLE_FW_LLDP, pf->flags);
+	err = ice_init_dcb(hw, false);
+	if (err && !port_info->is_sw_lldp) {
+		dev_err(&pf->pdev->dev, "Error initializing DCB %d\n", err);
+		goto dcb_init_err;
 	}
 
-	if (port_info->dcbx_status == ICE_DCBX_STATUS_NOT_STARTED)
-		dev_info(&pf->pdev->dev, "DCBX not started\n");
-
-	if (sw_default) {
+	dev_info(&pf->pdev->dev,
+		 "DCB is enabled in the hardware, max number of TCs supported on this port are %d\n",
+		 pf->hw.func_caps.common_cap.maxtc);
+	if (err) {
+		/* FW LLDP is disabled, activate SW DCBX/LLDP mode */
+		dev_info(&pf->pdev->dev,
+			 "FW LLDP is disabled, DCBx/LLDP in SW mode.\n");
+		clear_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags);
 		err = ice_dcb_sw_dflt_cfg(pf, locked);
 		if (err) {
 			dev_err(&pf->pdev->dev,
@@ -402,21 +516,18 @@ int ice_init_pf_dcb(struct ice_pf *pf, bool locked)
 		}
 
 		pf->dcbx_cap = DCB_CAP_DCBX_HOST | DCB_CAP_DCBX_VER_IEEE;
-		set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
-		set_bit(ICE_FLAG_DCB_ENA, pf->flags);
 		return 0;
 	}
 
+	set_bit(ICE_FLAG_FW_LLDP_AGENT, pf->flags);
+
 	/* DCBX in FW and LLDP enabled in FW */
 	pf->dcbx_cap = DCB_CAP_DCBX_LLD_MANAGED | DCB_CAP_DCBX_VER_IEEE;
 
-	set_bit(ICE_FLAG_DCB_CAPABLE, pf->flags);
-
 	err = ice_dcb_init_cfg(pf, locked);
 	if (err)
 		goto dcb_init_err;
 
-	dev_info(&pf->pdev->dev, "DCBX offload supported\n");
 	return err;
 
 dcb_init_err:
@@ -432,30 +543,31 @@ void ice_update_dcb_stats(struct ice_pf *pf)
 {
 	struct ice_hw_port_stats *prev_ps, *cur_ps;
 	struct ice_hw *hw = &pf->hw;
-	u8 pf_id = hw->pf_id;
+	u8 port;
 	int i;
 
+	port = hw->port_info->lport;
 	prev_ps = &pf->stats_prev;
 	cur_ps = &pf->stats;
 
 	for (i = 0; i < 8; i++) {
-		ice_stat_update32(hw, GLPRT_PXOFFRXC(pf_id, i),
+		ice_stat_update32(hw, GLPRT_PXOFFRXC(port, i),
 				  pf->stat_prev_loaded,
 				  &prev_ps->priority_xoff_rx[i],
 				  &cur_ps->priority_xoff_rx[i]);
-		ice_stat_update32(hw, GLPRT_PXONRXC(pf_id, i),
+		ice_stat_update32(hw, GLPRT_PXONRXC(port, i),
 				  pf->stat_prev_loaded,
 				  &prev_ps->priority_xon_rx[i],
 				  &cur_ps->priority_xon_rx[i]);
-		ice_stat_update32(hw, GLPRT_PXONTXC(pf_id, i),
+		ice_stat_update32(hw, GLPRT_PXONTXC(port, i),
 				  pf->stat_prev_loaded,
 				  &prev_ps->priority_xon_tx[i],
 				  &cur_ps->priority_xon_tx[i]);
-		ice_stat_update32(hw, GLPRT_PXOFFTXC(pf_id, i),
+		ice_stat_update32(hw, GLPRT_PXOFFTXC(port, i),
 				  pf->stat_prev_loaded,
 				  &prev_ps->priority_xoff_tx[i],
 				  &cur_ps->priority_xoff_tx[i]);
-		ice_stat_update32(hw, GLPRT_RXON2OFFCNT(pf_id, i),
+		ice_stat_update32(hw, GLPRT_RXON2OFFCNT(port, i),
 				  pf->stat_prev_loaded,
 				  &prev_ps->priority_xon_2_xoff[i],
 				  &cur_ps->priority_xon_2_xoff[i]);
@@ -502,55 +614,6 @@ ice_tx_prepare_vlan_flags_dcb(struct ice_ring *tx_ring,
 }
 
 /**
- * ice_dcb_need_recfg - Check if DCB needs reconfig
- * @pf: board private structure
- * @old_cfg: current DCB config
- * @new_cfg: new DCB config
- */
-static bool ice_dcb_need_recfg(struct ice_pf *pf, struct ice_dcbx_cfg *old_cfg,
-			       struct ice_dcbx_cfg *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.prio_table,
-			   &old_cfg->etscfg.prio_table,
-			   sizeof(new_cfg->etscfg.prio_table))) {
-			need_reconfig = true;
-			dev_dbg(&pf->pdev->dev, "ETS UP2TC changed.\n");
-		}
-
-		if (memcmp(&new_cfg->etscfg.tcbwtable,
-			   &old_cfg->etscfg.tcbwtable,
-			   sizeof(new_cfg->etscfg.tcbwtable)))
-			dev_dbg(&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_dbg(&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_dbg(&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_dbg(&pf->pdev->dev, "APP Table change detected.\n");
-	}
-
-	dev_dbg(&pf->pdev->dev, "dcb need_reconfig=%d\n", need_reconfig);
-	return need_reconfig;
-}
-
-/**
  * ice_dcb_process_lldp_set_mib_change - Process MIB change
  * @pf: ptr to ice_pf
  * @event: pointer to the admin queue receive event