Merge branch '100GbE' of git://git.kernel.org/pub/scm/linux/kernel/git/tnguy/next-queue

Tony Nguyen says:

====================
100GbE Intel Wired LAN Driver Updates 2021-06-07

This series contains updates to virtchnl header file and ice driver.

Brett adds capability bits to virtchnl to specify whether a primary or
secondary MAC address is being requested and adds the implementation to
ice. He also adds storing of VF MAC address so that it will be preserved
across reboots of VM and refactors VF queue configuration to remove the
expectation that configuration be done all at once.

Krzysztof refactors ice_setup_rx_ctx() to remove configuration not
related to Rx context into a new function, ice_vsi_cfg_rxq().

Liwei Song extends the wait time for the global config timeout.

Salil Mehta refactors code in ice_vsi_set_num_qs() to remove an
unnecessary call when the user has requested specific number of Rx or Tx
queues.

Jesse converts define macros to static inlines for NOP configurations.

Jake adds messaging when devlink fails to read device capabilities and
when pldmfw cannot find the requested firmware. Adds a wait for reset
completion when reporting devlink info and reinitializes NVM during
rebuild to ensure values are current.

Ani adds detection and reporting of modules exceeding supported power
levels and changes an error message to a debug message.

Paul fixes a clang warning for deadcode.DeadStores.
====================

Signed-off-by: David S. Miller <davem@davemloft.net>

1 files changed, 176 insertions, 50 deletions

diff --git a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
index 97a46c616aca..6392e0b31b90 100644
--- a/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
+++ b/drivers/net/ethernet/intel/ice/ice_virtchnl_pf.c
@@ -939,16 +939,18 @@ static int ice_vf_rebuild_host_mac_cfg(struct ice_vf *vf)
 
 	vf->num_mac++;
 
-	if (is_valid_ether_addr(vf->dflt_lan_addr.addr)) {
-		status = ice_fltr_add_mac(vsi, vf->dflt_lan_addr.addr,
+	if (is_valid_ether_addr(vf->hw_lan_addr.addr)) {
+		status = ice_fltr_add_mac(vsi, vf->hw_lan_addr.addr,
 					  ICE_FWD_TO_VSI);
 		if (status) {
 			dev_err(dev, "failed to add default unicast MAC filter %pM for VF %u, error %s\n",
-				&vf->dflt_lan_addr.addr[0], vf->vf_id,
+				&vf->hw_lan_addr.addr[0], vf->vf_id,
 				ice_stat_str(status));
 			return ice_status_to_errno(status);
 		}
 		vf->num_mac++;
+
+		ether_addr_copy(vf->dev_lan_addr.addr, vf->hw_lan_addr.addr);
 	}
 
 	return 0;
@@ -2386,7 +2388,7 @@ static int ice_vc_get_vf_res_msg(struct ice_vf *vf, u8 *msg)
 	vfres->vsi_res[0].vsi_type = VIRTCHNL_VSI_SRIOV;
 	vfres->vsi_res[0].num_queue_pairs = vsi->num_txq;
 	ether_addr_copy(vfres->vsi_res[0].default_mac_addr,
-			vf->dflt_lan_addr.addr);
+			vf->hw_lan_addr.addr);
 
 	/* match guest capabilities */
 	vf->driver_caps = vfres->vf_cap_flags;
@@ -3542,10 +3544,9 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 	struct virtchnl_vsi_queue_config_info *qci =
 	    (struct virtchnl_vsi_queue_config_info *)msg;
 	struct virtchnl_queue_pair_info *qpi;
-	u16 num_rxq = 0, num_txq = 0;
 	struct ice_pf *pf = vf->pf;
 	struct ice_vsi *vsi;
-	int i;
+	int i, q_idx;
 
 	if (!test_bit(ICE_VF_STATE_ACTIVE, vf->vf_states)) {
 		v_ret = VIRTCHNL_STATUS_ERR_PARAM;
@@ -3583,18 +3584,31 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 			goto error_param;
 		}
+
+		q_idx = qpi->rxq.queue_id;
+
+		/* make sure selected "q_idx" is in valid range of queues
+		 * for selected "vsi"
+		 */
+		if (q_idx >= vsi->alloc_txq || q_idx >= vsi->alloc_rxq) {
+			v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+			goto error_param;
+		}
+
 		/* copy Tx queue info from VF into VSI */
 		if (qpi->txq.ring_len > 0) {
-			num_txq++;
 			vsi->tx_rings[i]->dma = qpi->txq.dma_ring_addr;
 			vsi->tx_rings[i]->count = qpi->txq.ring_len;
+			if (ice_vsi_cfg_single_txq(vsi, vsi->tx_rings, q_idx)) {
+				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+				goto error_param;
+			}
 		}
 
 		/* copy Rx queue info from VF into VSI */
 		if (qpi->rxq.ring_len > 0) {
 			u16 max_frame_size = ice_vc_get_max_frame_size(vf);
 
-			num_rxq++;
 			vsi->rx_rings[i]->dma = qpi->rxq.dma_ring_addr;
 			vsi->rx_rings[i]->count = qpi->rxq.ring_len;
 
@@ -3611,27 +3625,20 @@ static int ice_vc_cfg_qs_msg(struct ice_vf *vf, u8 *msg)
 				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
 				goto error_param;
 			}
-		}
 
-		vsi->max_frame = qpi->rxq.max_pkt_size;
-		/* add space for the port VLAN since the VF driver is not
-		 * expected to account for it in the MTU calculation
-		 */
-		if (vf->port_vlan_info)
-			vsi->max_frame += VLAN_HLEN;
-	}
-
-	/* VF can request to configure less than allocated queues or default
-	 * allocated queues. So update the VSI with new number
-	 */
-	vsi->num_txq = num_txq;
-	vsi->num_rxq = num_rxq;
-	/* All queues of VF VSI are in TC 0 */
-	vsi->tc_cfg.tc_info[0].qcount_tx = num_txq;
-	vsi->tc_cfg.tc_info[0].qcount_rx = num_rxq;
+			vsi->max_frame = qpi->rxq.max_pkt_size;
+			/* add space for the port VLAN since the VF driver is not
+			 * expected to account for it in the MTU calculation
+			 */
+			if (vf->port_vlan_info)
+				vsi->max_frame += VLAN_HLEN;
 
-	if (ice_vsi_cfg_lan_txqs(vsi) || ice_vsi_cfg_rxqs(vsi))
-		v_ret = VIRTCHNL_STATUS_ERR_ADMIN_QUEUE_ERROR;
+			if (ice_vsi_cfg_single_rxq(vsi, q_idx)) {
+				v_ret = VIRTCHNL_STATUS_ERR_PARAM;
+				goto error_param;
+			}
+		}
+	}
 
 error_param:
 	/* send the response to the VF */
@@ -3667,19 +3674,95 @@ static bool ice_can_vf_change_mac(struct ice_vf *vf)
 }
 
 /**
+ * ice_vc_ether_addr_type - get type of virtchnl_ether_addr
+ * @vc_ether_addr: used to extract the type
+ */
+static u8
+ice_vc_ether_addr_type(struct virtchnl_ether_addr *vc_ether_addr)
+{
+	return (vc_ether_addr->type & VIRTCHNL_ETHER_ADDR_TYPE_MASK);
+}
+
+/**
+ * ice_is_vc_addr_legacy - check if the MAC address is from an older VF
+ * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
+ */
+static bool
+ice_is_vc_addr_legacy(struct virtchnl_ether_addr *vc_ether_addr)
+{
+	u8 type = ice_vc_ether_addr_type(vc_ether_addr);
+
+	return (type == VIRTCHNL_ETHER_ADDR_LEGACY);
+}
+
+/**
+ * ice_is_vc_addr_primary - check if the MAC address is the VF's primary MAC
+ * @vc_ether_addr: VIRTCHNL structure that contains MAC and type
+ *
+ * This function should only be called when the MAC address in
+ * virtchnl_ether_addr is a valid unicast MAC
+ */
+static bool
+ice_is_vc_addr_primary(struct virtchnl_ether_addr __maybe_unused *vc_ether_addr)
+{
+	u8 type = ice_vc_ether_addr_type(vc_ether_addr);
+
+	return (type == VIRTCHNL_ETHER_ADDR_PRIMARY);
+}
+
+/**
+ * ice_vfhw_mac_add - update the VF's cached hardware MAC if allowed
+ * @vf: VF to update
+ * @vc_ether_addr: structure from VIRTCHNL with MAC to add
+ */
+static void
+ice_vfhw_mac_add(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
+{
+	u8 *mac_addr = vc_ether_addr->addr;
+
+	if (!is_valid_ether_addr(mac_addr))
+		return;
+
+	/* only allow legacy VF drivers to set the device and hardware MAC if it
+	 * is zero and allow new VF drivers to set the hardware MAC if the type
+	 * was correctly specified over VIRTCHNL
+	 */
+	if ((ice_is_vc_addr_legacy(vc_ether_addr) &&
+	     is_zero_ether_addr(vf->hw_lan_addr.addr)) ||
+	    ice_is_vc_addr_primary(vc_ether_addr)) {
+		ether_addr_copy(vf->dev_lan_addr.addr, mac_addr);
+		ether_addr_copy(vf->hw_lan_addr.addr, mac_addr);
+	}
+
+	/* hardware and device MACs are already set, but its possible that the
+	 * VF driver sent the VIRTCHNL_OP_ADD_ETH_ADDR message before the
+	 * VIRTCHNL_OP_DEL_ETH_ADDR when trying to update its MAC, so save it
+	 * away for the legacy VF driver case as it will be updated in the
+	 * delete flow for this case
+	 */
+	if (ice_is_vc_addr_legacy(vc_ether_addr)) {
+		ether_addr_copy(vf->legacy_last_added_umac.addr,
+				mac_addr);
+		vf->legacy_last_added_umac.time_modified = jiffies;
+	}
+}
+
+/**
  * ice_vc_add_mac_addr - attempt to add the MAC address passed in
  * @vf: pointer to the VF info
  * @vsi: pointer to the VF's VSI
- * @mac_addr: MAC address to add
+ * @vc_ether_addr: VIRTCHNL MAC address structure used to add MAC
  */
 static int
-ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
+ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
+		    struct virtchnl_ether_addr *vc_ether_addr)
 {
 	struct device *dev = ice_pf_to_dev(vf->pf);
+	u8 *mac_addr = vc_ether_addr->addr;
 	enum ice_status status;
 
-	/* default unicast MAC already added */
-	if (ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
+	/* device MAC already added */
+	if (ether_addr_equal(mac_addr, vf->dev_lan_addr.addr))
 		return 0;
 
 	if (is_unicast_ether_addr(mac_addr) && !ice_can_vf_change_mac(vf)) {
@@ -3698,12 +3781,7 @@ ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 		return -EIO;
 	}
 
-	/* Set the default LAN address to the latest unicast MAC address added
-	 * by the VF. The default LAN address is reported by the PF via
-	 * ndo_get_vf_config.
-	 */
-	if (is_unicast_ether_addr(mac_addr))
-		ether_addr_copy(vf->dflt_lan_addr.addr, mac_addr);
+	ice_vfhw_mac_add(vf, vc_ether_addr);
 
 	vf->num_mac++;
 
@@ -3711,19 +3789,65 @@ ice_vc_add_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 }
 
 /**
+ * ice_is_legacy_umac_expired - check if last added legacy unicast MAC expired
+ * @last_added_umac: structure used to check expiration
+ */
+static bool ice_is_legacy_umac_expired(struct ice_time_mac *last_added_umac)
+{
+#define ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME	msecs_to_jiffies(3000)
+	return time_is_before_jiffies(last_added_umac->time_modified +
+				      ICE_LEGACY_VF_MAC_CHANGE_EXPIRE_TIME);
+}
+
+/**
+ * ice_vfhw_mac_del - update the VF's cached hardware MAC if allowed
+ * @vf: VF to update
+ * @vc_ether_addr: structure from VIRTCHNL with MAC to delete
+ */
+static void
+ice_vfhw_mac_del(struct ice_vf *vf, struct virtchnl_ether_addr *vc_ether_addr)
+{
+	u8 *mac_addr = vc_ether_addr->addr;
+
+	if (!is_valid_ether_addr(mac_addr) ||
+	    !ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
+		return;
+
+	/* allow the device MAC to be repopulated in the add flow and don't
+	 * clear the hardware MAC (i.e. hw_lan_addr.addr) here as that is meant
+	 * to be persistent on VM reboot and across driver unload/load, which
+	 * won't work if we clear the hardware MAC here
+	 */
+	eth_zero_addr(vf->dev_lan_addr.addr);
+
+	/* only update cached hardware MAC for legacy VF drivers on delete
+	 * because we cannot guarantee order/type of MAC from the VF driver
+	 */
+	if (ice_is_vc_addr_legacy(vc_ether_addr) &&
+	    !ice_is_legacy_umac_expired(&vf->legacy_last_added_umac)) {
+		ether_addr_copy(vf->dev_lan_addr.addr,
+				vf->legacy_last_added_umac.addr);
+		ether_addr_copy(vf->hw_lan_addr.addr,
+				vf->legacy_last_added_umac.addr);
+	}
+}
+
+/**
  * ice_vc_del_mac_addr - attempt to delete the MAC address passed in
  * @vf: pointer to the VF info
  * @vsi: pointer to the VF's VSI
- * @mac_addr: MAC address to delete
+ * @vc_ether_addr: VIRTCHNL MAC address structure used to delete MAC
  */
 static int
-ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
+ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi,
+		    struct virtchnl_ether_addr *vc_ether_addr)
 {
 	struct device *dev = ice_pf_to_dev(vf->pf);
+	u8 *mac_addr = vc_ether_addr->addr;
 	enum ice_status status;
 
 	if (!ice_can_vf_change_mac(vf) &&
-	    ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
+	    ether_addr_equal(vf->dev_lan_addr.addr, mac_addr))
 		return 0;
 
 	status = ice_fltr_remove_mac(vsi, mac_addr, ICE_FWD_TO_VSI);
@@ -3737,8 +3861,7 @@ ice_vc_del_mac_addr(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr)
 		return -EIO;
 	}
 
-	if (ether_addr_equal(mac_addr, vf->dflt_lan_addr.addr))
-		eth_zero_addr(vf->dflt_lan_addr.addr);
+	ice_vfhw_mac_del(vf, vc_ether_addr);
 
 	vf->num_mac--;
 
@@ -3757,7 +3880,8 @@ static int
 ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
 {
 	int (*ice_vc_cfg_mac)
-		(struct ice_vf *vf, struct ice_vsi *vsi, u8 *mac_addr);
+		(struct ice_vf *vf, struct ice_vsi *vsi,
+		 struct virtchnl_ether_addr *virtchnl_ether_addr);
 	enum virtchnl_status_code v_ret = VIRTCHNL_STATUS_SUCCESS;
 	struct virtchnl_ether_addr_list *al =
 	    (struct virtchnl_ether_addr_list *)msg;
@@ -3806,7 +3930,7 @@ ice_vc_handle_mac_addr_msg(struct ice_vf *vf, u8 *msg, bool set)
 		    is_zero_ether_addr(mac_addr))
 			continue;
 
-		result = ice_vc_cfg_mac(vf, vsi, mac_addr);
+		result = ice_vc_cfg_mac(vf, vsi, &al->list[i]);
 		if (result == -EEXIST || result == -ENOENT) {
 			continue;
 		} else if (result) {
@@ -4444,7 +4568,7 @@ ice_get_vf_cfg(struct net_device *netdev, int vf_id, struct ifla_vf_info *ivi)
 		return -EBUSY;
 
 	ivi->vf = vf_id;
-	ether_addr_copy(ivi->mac, vf->dflt_lan_addr.addr);
+	ether_addr_copy(ivi->mac, vf->hw_lan_addr.addr);
 
 	/* VF configuration for VLAN and applicable QoS */
 	ivi->vlan = vf->port_vlan_info & VLAN_VID_MASK;
@@ -4520,7 +4644,8 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 
 	vf = &pf->vf[vf_id];
 	/* nothing left to do, unicast MAC already set */
-	if (ether_addr_equal(vf->dflt_lan_addr.addr, mac))
+	if (ether_addr_equal(vf->dev_lan_addr.addr, mac) &&
+	    ether_addr_equal(vf->hw_lan_addr.addr, mac))
 		return 0;
 
 	ret = ice_check_vf_ready_for_cfg(vf);
@@ -4536,7 +4661,8 @@ int ice_set_vf_mac(struct net_device *netdev, int vf_id, u8 *mac)
 	/* VF is notified of its new MAC via the PF's response to the
 	 * VIRTCHNL_OP_GET_VF_RESOURCES message after the VF has been reset
 	 */
-	ether_addr_copy(vf->dflt_lan_addr.addr, mac);
+	ether_addr_copy(vf->dev_lan_addr.addr, mac);
+	ether_addr_copy(vf->hw_lan_addr.addr, mac);
 	if (is_zero_ether_addr(mac)) {
 		/* VF will send VIRTCHNL_OP_ADD_ETH_ADDR message with its MAC */
 		vf->pf_set_mac = false;
@@ -4689,7 +4815,7 @@ void ice_print_vf_rx_mdd_event(struct ice_vf *vf)
 
 	dev_info(dev, "%d Rx Malicious Driver Detection events detected on PF %d VF %d MAC %pM. mdd-auto-reset-vfs=%s\n",
 		 vf->mdd_rx_events.count, pf->hw.pf_id, vf->vf_id,
-		 vf->dflt_lan_addr.addr,
+		 vf->dev_lan_addr.addr,
 		 test_bit(ICE_FLAG_MDD_AUTO_RESET_VF, pf->flags)
 			  ? "on" : "off");
 }
@@ -4733,7 +4859,7 @@ void ice_print_vfs_mdd_events(struct ice_pf *pf)
 
 			dev_info(dev, "%d Tx Malicious Driver Detection events detected on PF %d VF %d MAC %pM.\n",
 				 vf->mdd_tx_events.count, hw->pf_id, i,
-				 vf->dflt_lan_addr.addr);
+				 vf->dev_lan_addr.addr);
 		}
 	}
 }
@@ -4823,7 +4949,7 @@ ice_is_malicious_vf(struct ice_pf *pf, struct ice_rq_event_info *event,
 
 			if (pf_vsi)
 				dev_warn(dev, "VF MAC %pM on PF MAC %pM is generating asynchronous messages and may be overflowing the PF message queue. Please see the Adapter User Guide for more information\n",
-					 &vf->dflt_lan_addr.addr[0],
+					 &vf->dev_lan_addr.addr[0],
 					 pf_vsi->netdev->dev_addr);
 		}