Merge tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next

Pull networking updates from Jakub Kicinski:
 "Core
  ----

   - Defer freeing TCP skbs to the BH handler, whenever possible, or at
     least perform the freeing outside of the socket lock section to
     decrease cross-CPU allocator work and improve latency.

   - Add netdevice refcount tracking to locate sources of netdevice and
     net namespace refcount leaks.

   - Make Tx watchdog less intrusive - avoid pausing Tx and restarting
     all queues from a single CPU removing latency spikes.

   - Various small optimizations throughout the stack from Eric Dumazet.

   - Make netdev->dev_addr[] constant, force modifications to go via
     appropriate helpers to allow us to keep addresses in ordered data
     structures.

   - Replace unix_table_lock with per-hash locks, improving performance
     of bind() calls.

   - Extend skb drop tracepoint with a drop reason.

   - Allow SO_MARK and SO_PRIORITY setsockopt under CAP_NET_RAW.

  BPF
  ---

   - New helpers:
      - bpf_find_vma(), find and inspect VMAs for profiling use cases
      - bpf_loop(), runtime-bounded loop helper trading some execution
        time for much faster (if at all converging) verification
      - bpf_strncmp(), improve performance, avoid compiler flakiness
      - bpf_get_func_arg(), bpf_get_func_ret(), bpf_get_func_arg_cnt()
        for tracing programs, all inlined by the verifier

   - Support BPF relocations (CO-RE) in the kernel loader.

   - Further the support for BTF_TYPE_TAG annotations.

   - Allow access to local storage in sleepable helpers.

   - Convert verifier argument types to a composable form with different
     attributes which can be shared across types (ro, maybe-null).

   - Prepare libbpf for upcoming v1.0 release by cleaning up APIs,
     creating new, extensible ones where missing and deprecating those
     to be removed.

  Protocols
  ---------

   - WiFi (mac80211/cfg80211):
      - notify user space about long "come back in N" AP responses,
        allow it to react to such temporary rejections
      - allow non-standard VHT MCS 10/11 rates
      - use coarse time in airtime fairness code to save CPU cycles

   - Bluetooth:
      - rework of HCI command execution serialization to use a common
        queue and work struct, and improve handling errors reported in
        the middle of a batch of commands
      - rework HCI event handling to use skb_pull_data, avoiding packet
        parsing pitfalls
      - support AOSP Bluetooth Quality Report

   - SMC:
      - support net namespaces, following the RDMA model
      - improve connection establishment latency by pre-clearing buffers
      - introduce TCP ULP for automatic redirection to SMC

   - Multi-Path TCP:
      - support ioctls: SIOCINQ, OUTQ, and OUTQNSD
      - support socket options: IP_TOS, IP_FREEBIND, IP_TRANSPARENT,
        IPV6_FREEBIND, and IPV6_TRANSPARENT, TCP_CORK and TCP_NODELAY
      - support cmsgs: TCP_INQ
      - improvements in the data scheduler (assigning data to subflows)
      - support fastclose option (quick shutdown of the full MPTCP
        connection, similar to TCP RST in regular TCP)

   - MCTP (Management Component Transport) over serial, as defined by
     DMTF spec DSP0253 - "MCTP Serial Transport Binding".

  Driver API
  ----------

   - Support timestamping on bond interfaces in active/passive mode.

   - Introduce generic phylink link mode validation for drivers which
     don't have any quirks and where MAC capability bits fully express
     what's supported. Allow PCS layer to participate in the validation.
     Convert a number of drivers.

   - Add support to set/get size of buffers on the Rx rings and size of
     the tx copybreak buffer via ethtool.

   - Support offloading TC actions as first-class citizens rather than
     only as attributes of filters, improve sharing and device resource
     utilization.

   - WiFi (mac80211/cfg80211):
      - support forwarding offload (ndo_fill_forward_path)
      - support for background radar detection hardware
      - SA Query Procedures offload on the AP side

  New hardware / drivers
  ----------------------

   - tsnep - FPGA based TSN endpoint Ethernet MAC used in PLCs with
     real-time requirements for isochronous communication with protocols
     like OPC UA Pub/Sub.

   - Qualcomm BAM-DMUX WWAN - driver for data channels of modems
     integrated into many older Qualcomm SoCs, e.g. MSM8916 or MSM8974
     (qcom_bam_dmux).

   - Microchip LAN966x multi-port Gigabit AVB/TSN Ethernet Switch driver
     with support for bridging, VLANs and multicast forwarding
     (lan966x).

   - iwlmei driver for co-operating between Intel's WiFi driver and
     Intel's Active Management Technology (AMT) devices.

   - mse102x - Vertexcom MSE102x Homeplug GreenPHY chips

   - Bluetooth:
      - MediaTek MT7921 SDIO devices
      - Foxconn MT7922A
      - Realtek RTL8852AE

  Drivers
  -------

   - Significantly improve performance in the datapaths of: lan78xx,
     ax88179_178a, lantiq_xrx200, bnxt.

   - Intel Ethernet NICs:
      - igb: support PTP/time PEROUT and EXTTS SDP functions on
        82580/i354/i350 adapters
      - ixgbevf: new PF -> VF mailbox API which avoids the risk of
        mailbox corruption with ESXi
      - iavf: support configuration of VLAN features of finer
        granularity, stacked tags and filtering
      - ice: PTP support for new E822 devices with sub-ns precision
      - ice: support firmware activation without reboot

   - Mellanox Ethernet NICs (mlx5):
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool
      - support TC forwarding when tunnel encap and decap happen between
        two ports of the same NIC
      - dynamically size and allow disabling various features to save
        resources for running in embedded / SmartNIC scenarios

   - Broadcom Ethernet NICs (bnxt):
      - use page frag allocator to improve Rx performance
      - expose control over IRQ coalescing mode (CQE vs EQE) via ethtool

   - Other Ethernet NICs:
      - amd-xgbe: add Ryzen 6000 (Yellow Carp) Ethernet support

   - Microsoft cloud/virtual NIC (mana):
      - add XDP support (PASS, DROP, TX)

   - Mellanox Ethernet switches (mlxsw):
      - initial support for Spectrum-4 ASICs
      - VxLAN with IPv6 underlay

   - Marvell Ethernet switches (prestera):
      - support flower flow templates
      - add basic IP forwarding support

   - NXP embedded Ethernet switches (ocelot & felix):
      - support Per-Stream Filtering and Policing (PSFP)
      - enable cut-through forwarding between ports by default
      - support FDMA to improve packet Rx/Tx to CPU

   - Other embedded switches:
      - hellcreek: improve trapping management (STP and PTP) packets
      - qca8k: support link aggregation and port mirroring

   - Qualcomm 802.11ax WiFi (ath11k):
      - qca6390, wcn6855: enable 802.11 power save mode in station mode
      - BSS color change support
      - WCN6855 hw2.1 support
      - 11d scan offload support
      - scan MAC address randomization support
      - full monitor mode, only supported on QCN9074
      - qca6390/wcn6855: report signal and tx bitrate
      - qca6390: rfkill support
      - qca6390/wcn6855: regdb.bin support

   - Intel WiFi (iwlwifi):
      - support SAR GEO Offset Mapping (SGOM) and Time-Aware-SAR (TAS)
        in cooperation with the BIOS
      - support for Optimized Connectivity Experience (OCE) scan
      - support firmware API version 68
      - lots of preparatory work for the upcoming Bz device family

   - MediaTek WiFi (mt76):
      - Specific Absorption Rate (SAR) support
      - mt7921: 160 MHz channel support

   - RealTek WiFi (rtw88):
      - Specific Absorption Rate (SAR) support
      - scan offload

   - Other WiFi NICs
      - ath10k: support fetching (pre-)calibration data from nvmem
      - brcmfmac: configure keep-alive packet on suspend
      - wcn36xx: beacon filter support"

* tag '5.17-net-next' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (2048 commits)
  tcp: tcp_send_challenge_ack delete useless param `skb`
  net/qla3xxx: Remove useless DMA-32 fallback configuration
  rocker: Remove useless DMA-32 fallback configuration
  hinic: Remove useless DMA-32 fallback configuration
  lan743x: Remove useless DMA-32 fallback configuration
  net: enetc: Remove useless DMA-32 fallback configuration
  cxgb4vf: Remove useless DMA-32 fallback configuration
  cxgb4: Remove useless DMA-32 fallback configuration
  cxgb3: Remove useless DMA-32 fallback configuration
  bnx2x: Remove useless DMA-32 fallback configuration
  et131x: Remove useless DMA-32 fallback configuration
  be2net: Remove useless DMA-32 fallback configuration
  vmxnet3: Remove useless DMA-32 fallback configuration
  bna: Simplify DMA setting
  net: alteon: Simplify DMA setting
  myri10ge: Simplify DMA setting
  qlcnic: Simplify DMA setting
  net: allwinner: Fix print format
  page_pool: remove spinlock in page_pool_refill_alloc_cache()
  amt: fix wrong return type of amt_send_membership_update()
  ...

10 files changed, 75 insertions, 75 deletions

diff --git a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
index 609820e214a3..f4054d2553ea 100644
--- a/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
+++ b/drivers/net/ethernet/chelsio/cxgb/cxgb2.c
@@ -710,7 +710,9 @@ static int set_pauseparam(struct net_device *dev,
 	return 0;
 }
 
-static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			  struct kernel_ethtool_ringparam *kernel_e,
+			  struct netlink_ext_ack *extack)
 {
 	struct adapter *adapter = dev->ml_priv;
 	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
@@ -724,7 +726,9 @@ static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
 	e->tx_pending = adapter->params.sge.cmdQ_size[0];
 }
 
-static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			 struct kernel_ethtool_ringparam *kernel_e,
+			 struct netlink_ext_ack *extack)
 {
 	struct adapter *adapter = dev->ml_priv;
 	int jumbo_fl = t1_is_T1B(adapter) ? 1 : 0;
@@ -940,11 +944,11 @@ static const struct net_device_ops cxgb_netdev_ops = {
 
 static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	int i, err, pci_using_dac = 0;
 	unsigned long mmio_start, mmio_len;
 	const struct board_info *bi;
 	struct adapter *adapter = NULL;
 	struct port_info *pi;
+	int i, err;
 
 	err = pci_enable_device(pdev);
 	if (err)
@@ -957,17 +961,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto out_disable_pdev;
 	}
 
-	if (!dma_set_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-		pci_using_dac = 1;
-
-		if (dma_set_coherent_mask(&pdev->dev, DMA_BIT_MASK(64))) {
-			pr_err("%s: unable to obtain 64-bit DMA for coherent allocations\n",
-			       pci_name(pdev));
-			err = -ENODEV;
-			goto out_disable_pdev;
-		}
-
-	} else if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) != 0) {
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
 		pr_err("%s: no usable DMA configuration\n", pci_name(pdev));
 		goto out_disable_pdev;
 	}
@@ -1039,10 +1034,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		netdev->hw_features |= NETIF_F_SG | NETIF_F_IP_CSUM |
 			NETIF_F_RXCSUM;
 		netdev->features |= NETIF_F_SG | NETIF_F_IP_CSUM |
-			NETIF_F_RXCSUM | NETIF_F_LLTX;
+			NETIF_F_RXCSUM | NETIF_F_LLTX | NETIF_F_HIGHDMA;
 
-		if (pci_using_dac)
-			netdev->features |= NETIF_F_HIGHDMA;
 		if (vlan_tso_capable(adapter)) {
 			netdev->features |=
 				NETIF_F_HW_VLAN_CTAG_TX |
diff --git a/drivers/net/ethernet/chelsio/cxgb/sge.c b/drivers/net/ethernet/chelsio/cxgb/sge.c
index cda01f22c71c..12e76fd0ae91 100644
--- a/drivers/net/ethernet/chelsio/cxgb/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb/sge.c
@@ -1359,7 +1359,7 @@ static void restart_sched(struct tasklet_struct *t)
  *	@fl: the free list that contains the packet buffer
  *	@len: the packet length
  *
- *	Process an ingress ethernet pakcet and deliver it to the stack.
+ *	Process an ingress ethernet packet and deliver it to the stack.
  */
 static void sge_rx(struct sge *sge, struct freelQ *fl, unsigned int len)
 {
diff --git a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
index bfffcaeee624..63521312cb90 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/cxgb3_main.c
@@ -1948,7 +1948,9 @@ static int set_pauseparam(struct net_device *dev,
 	return 0;
 }
 
-static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			  struct kernel_ethtool_ringparam *kernel_e,
+			  struct netlink_ext_ack *extack)
 {
 	struct port_info *pi = netdev_priv(dev);
 	struct adapter *adapter = pi->adapter;
@@ -1964,7 +1966,9 @@ static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
 	e->tx_pending = q->txq_size[0];
 }
 
-static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			 struct kernel_ethtool_ringparam *kernel_e,
+			 struct netlink_ext_ack *extack)
 {
 	struct port_info *pi = netdev_priv(dev);
 	struct adapter *adapter = pi->adapter;
@@ -3200,7 +3204,7 @@ static void cxgb3_init_iscsi_mac(struct net_device *dev)
 			NETIF_F_IPV6_CSUM | NETIF_F_HIGHDMA)
 static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 {
-	int i, err, pci_using_dac = 0;
+	int i, err;
 	resource_size_t mmio_start, mmio_len;
 	const struct adapter_info *ai;
 	struct adapter *adapter = NULL;
@@ -3227,9 +3231,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		goto out_disable_device;
 	}
 
-	if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
-		pci_using_dac = 1;
-	} else if ((err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32))) != 0) {
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
 		dev_err(&pdev->dev, "no usable DMA configuration\n");
 		goto out_release_regions;
 	}
@@ -3305,8 +3308,8 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		netdev->features |= netdev->hw_features |
 				    NETIF_F_HW_VLAN_CTAG_TX;
 		netdev->vlan_features |= netdev->features & VLAN_FEAT;
-		if (pci_using_dac)
-			netdev->features |= NETIF_F_HIGHDMA;
+
+		netdev->features |= NETIF_F_HIGHDMA;
 
 		netdev->netdev_ops = &cxgb_netdev_ops;
 		netdev->ethtool_ops = &cxgb_ethtool_ops;
diff --git a/drivers/net/ethernet/chelsio/cxgb3/sge.c b/drivers/net/ethernet/chelsio/cxgb3/sge.c
index c3afec1041f8..62dfbdd33365 100644
--- a/drivers/net/ethernet/chelsio/cxgb3/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb3/sge.c
@@ -126,8 +126,10 @@ struct rsp_desc {		/* response queue descriptor */
 	struct rss_header rss_hdr;
 	__be32 flags;
 	__be32 len_cq;
-	u8 imm_data[47];
-	u8 intr_gen;
+	struct_group(immediate,
+		u8 imm_data[47];
+		u8 intr_gen;
+	);
 };
 
 /*
@@ -925,7 +927,8 @@ static inline struct sk_buff *get_imm_packet(const struct rsp_desc *resp)
 
 	if (skb) {
 		__skb_put(skb, IMMED_PKT_SIZE);
-		skb_copy_to_linear_data(skb, resp->imm_data, IMMED_PKT_SIZE);
+		BUILD_BUG_ON(IMMED_PKT_SIZE != sizeof(resp->immediate));
+		skb_copy_to_linear_data(skb, &resp->immediate, IMMED_PKT_SIZE);
 	}
 	return skb;
 }
@@ -1953,7 +1956,7 @@ static int ofld_poll(struct napi_struct *napi, int budget)
  *	@rx_gather: a gather list of packets if we are building a bundle
  *	@gather_idx: index of the next available slot in the bundle
  *
- *	Process an ingress offload pakcet and add it to the offload ingress
+ *	Process an ingress offload packet and add it to the offload ingress
  *	queue. 	Returns the index of the next available slot in the bundle.
  */
 static inline int rx_offload(struct t3cdev *tdev, struct sge_rspq *rq,
@@ -2079,7 +2082,7 @@ static void cxgb3_process_iscsi_prov_pack(struct port_info *pi,
  *	@pad: padding
  *	@lro: large receive offload
  *
- *	Process an ingress ethernet pakcet and deliver it to the stack.
+ *	Process an ingress ethernet packet and deliver it to the stack.
  *	The padding is 2 if the packet was delivered in an Rx buffer and 0
  *	if it was immediate data in a response.
  */
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
index 129352bbe114..6c790af92170 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_ethtool.c
@@ -890,7 +890,9 @@ static int set_pauseparam(struct net_device *dev,
 	return 0;
 }
 
-static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			  struct kernel_ethtool_ringparam *kernel_e,
+			  struct netlink_ext_ack *extack)
 {
 	const struct port_info *pi = netdev_priv(dev);
 	const struct sge *s = &pi->adapter->sge;
@@ -906,7 +908,9 @@ static void get_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
 	e->tx_pending = s->ethtxq[pi->first_qset].q.size;
 }
 
-static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e)
+static int set_sge_param(struct net_device *dev, struct ethtool_ringparam *e,
+			 struct kernel_ethtool_ringparam *kernel_e,
+			 struct netlink_ext_ack *extack)
 {
 	int i;
 	const struct port_info *pi = netdev_priv(dev);
@@ -1989,6 +1993,15 @@ static int get_dump_data(struct net_device *dev, struct ethtool_dump *eth_dump,
 	return 0;
 }
 
+static bool cxgb4_fw_mod_type_info_available(unsigned int fw_mod_type)
+{
+	/* Read port module EEPROM as long as it is plugged-in and
+	 * safe to read.
+	 */
+	return (fw_mod_type != FW_PORT_MOD_TYPE_NONE &&
+		fw_mod_type != FW_PORT_MOD_TYPE_ERROR);
+}
+
 static int cxgb4_get_module_info(struct net_device *dev,
 				 struct ethtool_modinfo *modinfo)
 {
@@ -1997,7 +2010,7 @@ static int cxgb4_get_module_info(struct net_device *dev,
 	struct adapter *adapter = pi->adapter;
 	int ret;
 
-	if (!t4_is_inserted_mod_type(pi->mod_type))
+	if (!cxgb4_fw_mod_type_info_available(pi->mod_type))
 		return -EINVAL;
 
 	switch (pi->port_type) {
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
index dde1cf51d0ab..0c78c0db8937 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c
@@ -6608,7 +6608,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 	static int adap_idx = 1;
 	int s_qpp, qpp, num_seg;
 	struct port_info *pi;
-	bool highdma = false;
 	enum chip_type chip;
 	void __iomem *regs;
 	int func, chip_ver;
@@ -6687,14 +6686,10 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 		return 0;
 	}
 
-	if (!dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64))) {
-		highdma = true;
-	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (err) {
-			dev_err(&pdev->dev, "no usable DMA configuration\n");
-			goto out_free_adapter;
-		}
+	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
+	if (err) {
+		dev_err(&pdev->dev, "no usable DMA configuration\n");
+		goto out_free_adapter;
 	}
 
 	pci_enable_pcie_error_reporting(pdev);
@@ -6823,7 +6818,7 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM |
 			NETIF_F_RXCSUM | NETIF_F_RXHASH | NETIF_F_GRO |
 			NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX |
-			NETIF_F_HW_TC | NETIF_F_NTUPLE;
+			NETIF_F_HW_TC | NETIF_F_NTUPLE | NETIF_F_HIGHDMA;
 
 		if (chip_ver > CHELSIO_T5) {
 			netdev->hw_enc_features |= NETIF_F_IP_CSUM |
@@ -6841,8 +6836,6 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent)
 				netdev->udp_tunnel_nic_info = &cxgb_udp_tunnels;
 		}
 
-		if (highdma)
-			netdev->hw_features |= NETIF_F_HIGHDMA;
 		netdev->features |= netdev->hw_features;
 		netdev->vlan_features = netdev->features & VLAN_FEAT;
 #if IS_ENABLED(CONFIG_CHELSIO_TLS_DEVICE)
diff --git a/drivers/net/ethernet/chelsio/cxgb4/sge.c b/drivers/net/ethernet/chelsio/cxgb4/sge.c
index fa5b596ff23a..f889f404305c 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4/sge.c
@@ -1842,8 +1842,10 @@ static netdev_tx_t cxgb4_vf_eth_xmit(struct sk_buff *skb,
 	 * (including the VLAN tag) into the header so we reject anything
 	 * smaller than that ...
 	 */
-	fw_hdr_copy_len = sizeof(wr->ethmacdst) + sizeof(wr->ethmacsrc) +
-			  sizeof(wr->ethtype) + sizeof(wr->vlantci);
+	BUILD_BUG_ON(sizeof(wr->firmware) !=
+		     (sizeof(wr->ethmacdst) + sizeof(wr->ethmacsrc) +
+		      sizeof(wr->ethtype) + sizeof(wr->vlantci)));
+	fw_hdr_copy_len = sizeof(wr->firmware);
 	ret = cxgb4_validate_skb(skb, dev, fw_hdr_copy_len);
 	if (ret)
 		goto out_free;
@@ -1924,7 +1926,7 @@ static netdev_tx_t cxgb4_vf_eth_xmit(struct sk_buff *skb,
 	wr->equiq_to_len16 = cpu_to_be32(wr_mid);
 	wr->r3[0] = cpu_to_be32(0);
 	wr->r3[1] = cpu_to_be32(0);
-	skb_copy_from_linear_data(skb, (void *)wr->ethmacdst, fw_hdr_copy_len);
+	skb_copy_from_linear_data(skb, &wr->firmware, fw_hdr_copy_len);
 	end = (u64 *)wr + flits;
 
 	/* If this is a Large Send Offload packet we'll put in an LSO CPL
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
index 0a326c054707..2419459a0b85 100644
--- a/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
+++ b/drivers/net/ethernet/chelsio/cxgb4/t4fw_api.h
@@ -794,10 +794,12 @@ struct fw_eth_tx_pkt_vm_wr {
 	__be32 op_immdlen;
 	__be32 equiq_to_len16;
 	__be32 r3[2];
-	u8 ethmacdst[6];
-	u8 ethmacsrc[6];
-	__be16 ethtype;
-	__be16 vlantci;
+	struct_group(firmware,
+		u8 ethmacdst[ETH_ALEN];
+		u8 ethmacsrc[ETH_ALEN];
+		__be16 ethtype;
+		__be16 vlantci;
+	);
 };
 
 #define FW_CMD_MAX_TIMEOUT 10000
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
index ae9cca768d74..7de3800437c9 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/cxgb4vf_main.c
@@ -1591,7 +1591,9 @@ static void cxgb4vf_set_msglevel(struct net_device *dev, u32 msglevel)
  * first Queue Set.
  */
 static void cxgb4vf_get_ringparam(struct net_device *dev,
-				  struct ethtool_ringparam *rp)
+				  struct ethtool_ringparam *rp,
+				  struct kernel_ethtool_ringparam *kernel_rp,
+				  struct netlink_ext_ack *extack)
 {
 	const struct port_info *pi = netdev_priv(dev);
 	const struct sge *s = &pi->adapter->sge;
@@ -1614,7 +1616,9 @@ static void cxgb4vf_get_ringparam(struct net_device *dev,
  * device -- after vetting them of course!
  */
 static int cxgb4vf_set_ringparam(struct net_device *dev,
-				 struct ethtool_ringparam *rp)
+				 struct ethtool_ringparam *rp,
+				 struct kernel_ethtool_ringparam *kernel_rp,
+				 struct netlink_ext_ack *extack)
 {
 	const struct port_info *pi = netdev_priv(dev);
 	struct adapter *adapter = pi->adapter;
@@ -2895,7 +2899,6 @@ static int cxgb4vf_pci_probe(struct pci_dev *pdev,
 	struct net_device *netdev;
 	struct port_info *pi;
 	unsigned int pmask;
-	int pci_using_dac;
 	int err, pidx;
 
 	/*
@@ -2916,19 +2919,12 @@ static int cxgb4vf_pci_probe(struct pci_dev *pdev,
 	}
 
 	/*
-	 * Set up our DMA mask: try for 64-bit address masking first and
-	 * fall back to 32-bit if we can't get 64 bits ...
+	 * Set up our DMA mask
 	 */
 	err = dma_set_mask_and_coherent(&pdev->dev, DMA_BIT_MASK(64));
-	if (err == 0) {
-		pci_using_dac = 1;
-	} else {
-		err = dma_set_mask(&pdev->dev, DMA_BIT_MASK(32));
-		if (err != 0) {
-			dev_err(&pdev->dev, "no usable DMA configuration\n");
-			goto err_release_regions;
-		}
-		pci_using_dac = 0;
+	if (err) {
+		dev_err(&pdev->dev, "no usable DMA configuration\n");
+		goto err_release_regions;
 	}
 
 	/*
@@ -3074,9 +3070,7 @@ static int cxgb4vf_pci_probe(struct pci_dev *pdev,
 		netdev->hw_features = NETIF_F_SG | TSO_FLAGS | NETIF_F_GRO |
 			NETIF_F_IP_CSUM | NETIF_F_IPV6_CSUM | NETIF_F_RXCSUM |
 			NETIF_F_HW_VLAN_CTAG_TX | NETIF_F_HW_VLAN_CTAG_RX;
-		netdev->features = netdev->hw_features;
-		if (pci_using_dac)
-			netdev->features |= NETIF_F_HIGHDMA;
+		netdev->features = netdev->hw_features | NETIF_F_HIGHDMA;
 		netdev->vlan_features = netdev->features & VLAN_FEAT;
 
 		netdev->priv_flags |= IFF_UNICAST_FLT;
diff --git a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
index 0295b2406646..43b2ceb6aa32 100644
--- a/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
+++ b/drivers/net/ethernet/chelsio/cxgb4vf/sge.c
@@ -1167,10 +1167,7 @@ netdev_tx_t t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	struct cpl_tx_pkt_core *cpl;
 	const struct skb_shared_info *ssi;
 	dma_addr_t addr[MAX_SKB_FRAGS + 1];
-	const size_t fw_hdr_copy_len = (sizeof(wr->ethmacdst) +
-					sizeof(wr->ethmacsrc) +
-					sizeof(wr->ethtype) +
-					sizeof(wr->vlantci));
+	const size_t fw_hdr_copy_len = sizeof(wr->firmware);
 
 	/*
 	 * The chip minimum packet length is 10 octets but the firmware
@@ -1267,7 +1264,7 @@ netdev_tx_t t4vf_eth_xmit(struct sk_buff *skb, struct net_device *dev)
 	wr->equiq_to_len16 = cpu_to_be32(wr_mid);
 	wr->r3[0] = cpu_to_be32(0);
 	wr->r3[1] = cpu_to_be32(0);
-	skb_copy_from_linear_data(skb, (void *)wr->ethmacdst, fw_hdr_copy_len);
+	skb_copy_from_linear_data(skb, &wr->firmware, fw_hdr_copy_len);
 	end = (u64 *)wr + flits;
 
 	/*