Merge tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextHEADmaster

Pull networking updates from Jakub Kicinski:
 "Not much excitement - a handful of large patchsets (devmem among them)
  did not make it in time.

  Core & protocols:

   - Use local_lock in addition to local_bh_disable() to protect per-CPU
     resources in networking, a step closer for local_bh_disable() not
     to act as a big lock on PREEMPT_RT

   - Use flex array for netdevice priv area, ensure its cache alignment

   - Add a sysctl knob to allow user to specify a default rto_min at
     socket init time. Bit of a big hammer but multiple companies were
     independently carrying such patch downstream so clearly it's useful

   - Support scheduling transmission of packets based on CLOCK_TAI

   - Un-pin TCP TIMEWAIT timer to avoid it firing on CPUs later cordoned
     off using cpusets

   - Support multiple L2TPv3 UDP tunnels using the same 5-tuple address

   - Allow configuration of multipath hash seed, to both allow
     synchronizing hashing of two routers, and preventing partial
     accidental sync

   - Improve TCP compliance with RFC 9293 for simultaneous connect()

   - Support sending NAT keepalives in IPsec ESP in UDP states.
     Userspace IKE daemon had to do this before, but the kernel can
     better keep track of it

   - Support sending supervision HSR frames with MAC addresses stored in
     ProxyNodeTable when RedBox (i.e. HSR-SAN) is enabled

   - Introduce IPPROTO_SMC for selecting SMC when socket is created

   - Allow UDP GSO transmit from devices with no checksum offload

   - openvswitch: add packet sampling via psample, separating the
     sampled traffic from "upcall" packets sent to user space for
     forwarding

   - nf_tables: shrink memory consumption for transaction objects

  Things we sprinkled into general kernel code:

   - Power Sequencing subsystem (used by Qualcomm Bluetooth driver for
     QCA6390)           [ Already merged separately - Linus ]

   - Add IRQ information in sysfs for auxiliary bus

   - Introduce guard definition for local_lock

   - Add aligned flavor of __cacheline_group_{begin, end}() markings for
     grouping fields in structures

  BPF:

   - Notify user space (via epoll) when a struct_ops object is getting
     detached/unregistered

   - Add new kfuncs for a generic, open-coded bits iterator

   - Enable BPF programs to declare arrays of kptr, bpf_rb_root, and
     bpf_list_head

   - Support resilient split BTF which cuts down on duplication and
     makes BTF as compact as possible WRT BTF from modules

   - Add support for dumping kfunc prototypes from BTF which enables
     both detecting as well as dumping compilable prototypes for kfuncs

   - riscv64 BPF JIT improvements in particular to add 12-argument
     support for BPF trampolines and to utilize bpf_prog_pack for the
     latter

   - Add the capability to offload the netfilter flowtable in XDP layer
     through kfuncs

  Driver API:

   - Allow users to configure IRQ tresholds between which automatic IRQ
     moderation can choose

   - Expand Power Sourcing (PoE) status with power, class and failure
     reason. Support setting power limits

   - Track additional RSS contexts in the core, make sure configuration
     changes don't break them

   - Support IPsec crypto offload for IPv6 ESP and IPv4 UDP-encapsulated
     ESP data paths

   - Support updating firmware on SFP modules

  Tests and tooling:

   - mptcp: use net/lib.sh to manage netns

   - TCP-AO and TCP-MD5: replace debug prints used by tests with
     tracepoints

   - openvswitch: make test self-contained (don't depend on OvS CLI
     tools)

  Drivers:

   - Ethernet high-speed NICs:
      - Broadcom (bnxt):
         - increase the max total outstanding PTP TX packets to 4
         - add timestamping statistics support
         - implement netdev_queue_mgmt_ops
         - support new RSS context API
      - Intel (100G, ice, idpf):
         - implement FEC statistics and dumping signal quality indicators
         - support E825C products (with 56Gbps PHYs)
      - nVidia/Mellanox:
         - support HW-GRO
         - mlx4/mlx5: support per-queue statistics via netlink
         - obey the max number of EQs setting in sub-functions
      - AMD/Solarflare:
         - support new RSS context API
      - AMD/Pensando:
         - ionic: rework fix for doorbell miss to lower overhead and
           skip it on new HW
      - Wangxun:
         - txgbe: support Flow Director perfect filters

   - Ethernet NICs consumer, embedded and virtual:
      - Add driver for Tehuti Networks TN40xx chips
      - Add driver for Meta's internal NIC chips
      - Add driver for Ethernet MAC on Airoha EN7581 SoCs
      - Add driver for Renesas Ethernet-TSN devices
      - Google cloud vNIC:
         - flow steering support
      - Microsoft vNIC:
         - support page sizes other than 4KB on ARM64
      - vmware vNIC:
         - support latency measurement (update to version 9)
      - VirtIO net:
         - support for Byte Queue Limits
         - support configuring thresholds for automatic IRQ moderation
         - support for AF_XDP Rx zero-copy
      - Synopsys (stmmac):
         - support for STM32MP13 SoC
         - let platforms select the right PCS implementation
      - TI:
         - icssg-prueth: add multicast filtering support
         - icssg-prueth: enable PTP timestamping and PPS
      - Renesas:
         - ravb: improve Rx performance 30-400% by using page pool,
           theaded NAPI and timer-based IRQ coalescing
         - ravb: add MII support for R-Car V4M
      - Cadence (macb):
         - macb: add ARP support to Wake-On-LAN
      - Cortina:
         - use phylib for RX and TX pause configuration

   - Ethernet switches:
      - nVidia/Mellanox:
         - support configuration of multipath hash seed
         - report more accurate max MTU
         - use page_pool to improve Rx performance
      - MediaTek:
         - mt7530: add support for bridge port isolation
      - Qualcomm:
         - qca8k: add support for bridge port isolation
      - Microchip:
         - lan9371/2: add 100BaseTX PHY support
      - NXP:
         - vsc73xx: implement VLAN operations

   - Ethernet PHYs:
      - aquantia: enable support for aqr115c
      - aquantia: add support for PHY LEDs
      - realtek: add support for rtl8224 2.5Gbps PHY
      - xpcs: add memory-mapped device support
      - add BroadR-Reach link mode and support in Broadcom's PHY driver

   - CAN:
      - add document for ISO 15765-2 protocol support
      - mcp251xfd: workaround for erratum DS80000789E, use timestamps to
        catch when device returns incorrect FIFO status

   - WiFi:
      - mac80211/cfg80211:
         - parse Transmit Power Envelope (TPE) data in mac80211 instead
           of in drivers
         - improvements for 6 GHz regulatory flexibility
         - multi-link improvements
         - support multiple radios per wiphy
         - remove DEAUTH_NEED_MGD_TX_PREP flag
      - Intel (iwlwifi):
         - bump FW API to 91 for BZ/SC devices
         - report 64-bit radiotap timestamp
         - enable P2P low latency by default
         - handle Transmit Power Envelope (TPE) advertised by AP
         - remove support for older FW for new devices
         - fast resume (keeping the device configured)
         - mvm: re-enable Multi-Link Operation (MLO)
         - aggregation (A-MSDU) optimizations
      - MediaTek (mt76):
         - mt7925 Multi-Link Operation (MLO) support
      - Qualcomm (ath10k):
         - LED support for various chipsets
      - Qualcomm (ath12k):
         - remove unsupported Tx monitor handling
         - support channel 2 in 6 GHz band
         - support Spatial Multiplexing Power Save (SMPS) in 6 GHz band
         - supprt multiple BSSID (MBSSID) and Enhanced Multi-BSSID
           Advertisements (EMA)
         - support dynamic VLAN
         - add panic handler for resetting the firmware state
         - DebugFS support for datapath statistics
         - WCN7850: support for Wake on WLAN
      - Microchip (wilc1000):
         - read MAC address during probe to make it visible to user space
         - suspend/resume improvements
      - TI (wl18xx):
         - support newer firmware versions
      - RealTek (rtw89):
         - preparation for RTL8852BE-VT support
         - Wake on WLAN support for WiFi 6 chips
         - 36-bit PCI DMA support
      - RealTek (rtlwifi):
         - RTL8192DU support
      - Broadcom (brcmfmac):
         - Management Frame Protection support (to enable WPA3)

   - Bluetooth:
      - qualcomm: use the power sequencer for QCA6390
      - btusb: mediatek: add ISO data transmission functions
      - hci_bcm4377: add BCM4388 support
      - btintel: add support for BlazarU core
      - btintel: add support for Whale Peak2
      - btnxpuart: add support for AW693 A1 chipset
      - btnxpuart: add support for IW615 chipset
      - btusb: add Realtek RTL8852BE support ID 0x13d3:0x3591"

* tag 'net-next-6.11' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1589 commits)
  eth: fbnic: Fix spelling mistake "tiggerring" -> "triggering"
  tcp: Replace strncpy() with strscpy()
  wifi: ath12k: fix build vs old compiler
  tcp: Don't access uninit tcp_rsk(req)->ao_keyid in tcp_create_openreq_child().
  eth: fbnic: Write the TCAM tables used for RSS control and Rx to host
  eth: fbnic: Add L2 address programming
  eth: fbnic: Add basic Rx handling
  eth: fbnic: Add basic Tx handling
  eth: fbnic: Add link detection
  eth: fbnic: Add initial messaging to notify FW of our presence
  eth: fbnic: Implement Rx queue alloc/start/stop/free
  eth: fbnic: Implement Tx queue alloc/start/stop/free
  eth: fbnic: Allocate a netdevice and napi vectors with queues
  eth: fbnic: Add FW communication mechanism
  eth: fbnic: Add message parsing for FW messages
  eth: fbnic: Add register init to set PCIe/Ethernet device config
  eth: fbnic: Allocate core device specific structures and devlink interface
  eth: fbnic: Add scaffolding for Meta's NIC driver
  PCI: Add Meta Platforms vendor ID
  net/sched: cls_flower: propagate tca[TCA_OPTIONS] to NL_REQ_ATTR_CHECK
  ...

1 files changed, 488 insertions, 0 deletions

diff --git a/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c b/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c
new file mode 100644
index 000000000000..b7ce6da68543
--- /dev/null
+++ b/drivers/net/ethernet/meta/fbnic/fbnic_netdev.c
@@ -0,0 +1,488 @@
+// SPDX-License-Identifier: GPL-2.0
+/* Copyright (c) Meta Platforms, Inc. and affiliates. */
+
+#include <linux/etherdevice.h>
+#include <linux/ipv6.h>
+#include <linux/types.h>
+
+#include "fbnic.h"
+#include "fbnic_netdev.h"
+#include "fbnic_txrx.h"
+
+int __fbnic_open(struct fbnic_net *fbn)
+{
+	struct fbnic_dev *fbd = fbn->fbd;
+	int err;
+
+	err = fbnic_alloc_napi_vectors(fbn);
+	if (err)
+		return err;
+
+	err = fbnic_alloc_resources(fbn);
+	if (err)
+		goto free_napi_vectors;
+
+	err = netif_set_real_num_tx_queues(fbn->netdev,
+					   fbn->num_tx_queues);
+	if (err)
+		goto free_resources;
+
+	err = netif_set_real_num_rx_queues(fbn->netdev,
+					   fbn->num_rx_queues);
+	if (err)
+		goto free_resources;
+
+	/* Send ownership message and flush to verify FW has seen it */
+	err = fbnic_fw_xmit_ownership_msg(fbd, true);
+	if (err) {
+		dev_warn(fbd->dev,
+			 "Error %d sending host ownership message to the firmware\n",
+			 err);
+		goto free_resources;
+	}
+
+	err = fbnic_fw_init_heartbeat(fbd, false);
+	if (err)
+		goto release_ownership;
+
+	err = fbnic_pcs_irq_enable(fbd);
+	if (err)
+		goto release_ownership;
+	/* Pull the BMC config and initialize the RPC */
+	fbnic_bmc_rpc_init(fbd);
+	fbnic_rss_reinit(fbd, fbn);
+
+	return 0;
+release_ownership:
+	fbnic_fw_xmit_ownership_msg(fbn->fbd, false);
+free_resources:
+	fbnic_free_resources(fbn);
+free_napi_vectors:
+	fbnic_free_napi_vectors(fbn);
+	return err;
+}
+
+static int fbnic_open(struct net_device *netdev)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	int err;
+
+	err = __fbnic_open(fbn);
+	if (!err)
+		fbnic_up(fbn);
+
+	return err;
+}
+
+static int fbnic_stop(struct net_device *netdev)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+
+	fbnic_down(fbn);
+	fbnic_pcs_irq_disable(fbn->fbd);
+
+	fbnic_fw_xmit_ownership_msg(fbn->fbd, false);
+
+	fbnic_free_resources(fbn);
+	fbnic_free_napi_vectors(fbn);
+
+	return 0;
+}
+
+static int fbnic_uc_sync(struct net_device *netdev, const unsigned char *addr)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_mac_addr *avail_addr;
+
+	if (WARN_ON(!is_valid_ether_addr(addr)))
+		return -EADDRNOTAVAIL;
+
+	avail_addr = __fbnic_uc_sync(fbn->fbd, addr);
+	if (!avail_addr)
+		return -ENOSPC;
+
+	/* Add type flag indicating this address is in use by the host */
+	set_bit(FBNIC_MAC_ADDR_T_UNICAST, avail_addr->act_tcam);
+
+	return 0;
+}
+
+static int fbnic_uc_unsync(struct net_device *netdev, const unsigned char *addr)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_dev *fbd = fbn->fbd;
+	int i, ret;
+
+	/* Scan from middle of list to bottom, filling bottom up.
+	 * Skip the first entry which is reserved for dev_addr and
+	 * leave the last entry to use for promiscuous filtering.
+	 */
+	for (i = fbd->mac_addr_boundary, ret = -ENOENT;
+	     i < FBNIC_RPC_TCAM_MACDA_HOST_ADDR_IDX && ret; i++) {
+		struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i];
+
+		if (!ether_addr_equal(mac_addr->value.addr8, addr))
+			continue;
+
+		ret = __fbnic_uc_unsync(mac_addr);
+	}
+
+	return ret;
+}
+
+static int fbnic_mc_sync(struct net_device *netdev, const unsigned char *addr)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_mac_addr *avail_addr;
+
+	if (WARN_ON(!is_multicast_ether_addr(addr)))
+		return -EADDRNOTAVAIL;
+
+	avail_addr = __fbnic_mc_sync(fbn->fbd, addr);
+	if (!avail_addr)
+		return -ENOSPC;
+
+	/* Add type flag indicating this address is in use by the host */
+	set_bit(FBNIC_MAC_ADDR_T_MULTICAST, avail_addr->act_tcam);
+
+	return 0;
+}
+
+static int fbnic_mc_unsync(struct net_device *netdev, const unsigned char *addr)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_dev *fbd = fbn->fbd;
+	int i, ret;
+
+	/* Scan from middle of list to top, filling top down.
+	 * Skip over the address reserved for the BMC MAC and
+	 * exclude index 0 as that belongs to the broadcast address
+	 */
+	for (i = fbd->mac_addr_boundary, ret = -ENOENT;
+	     --i > FBNIC_RPC_TCAM_MACDA_BROADCAST_IDX && ret;) {
+		struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[i];
+
+		if (!ether_addr_equal(mac_addr->value.addr8, addr))
+			continue;
+
+		ret = __fbnic_mc_unsync(mac_addr);
+	}
+
+	return ret;
+}
+
+void __fbnic_set_rx_mode(struct net_device *netdev)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	bool uc_promisc = false, mc_promisc = false;
+	struct fbnic_dev *fbd = fbn->fbd;
+	struct fbnic_mac_addr *mac_addr;
+	int err;
+
+	/* Populate host address from dev_addr */
+	mac_addr = &fbd->mac_addr[FBNIC_RPC_TCAM_MACDA_HOST_ADDR_IDX];
+	if (!ether_addr_equal(mac_addr->value.addr8, netdev->dev_addr) ||
+	    mac_addr->state != FBNIC_TCAM_S_VALID) {
+		ether_addr_copy(mac_addr->value.addr8, netdev->dev_addr);
+		mac_addr->state = FBNIC_TCAM_S_UPDATE;
+		set_bit(FBNIC_MAC_ADDR_T_UNICAST, mac_addr->act_tcam);
+	}
+
+	/* Populate broadcast address if broadcast is enabled */
+	mac_addr = &fbd->mac_addr[FBNIC_RPC_TCAM_MACDA_BROADCAST_IDX];
+	if (netdev->flags & IFF_BROADCAST) {
+		if (!is_broadcast_ether_addr(mac_addr->value.addr8) ||
+		    mac_addr->state != FBNIC_TCAM_S_VALID) {
+			eth_broadcast_addr(mac_addr->value.addr8);
+			mac_addr->state = FBNIC_TCAM_S_ADD;
+		}
+		set_bit(FBNIC_MAC_ADDR_T_BROADCAST, mac_addr->act_tcam);
+	} else if (mac_addr->state == FBNIC_TCAM_S_VALID) {
+		__fbnic_xc_unsync(mac_addr, FBNIC_MAC_ADDR_T_BROADCAST);
+	}
+
+	/* Synchronize unicast and multicast address lists */
+	err = __dev_uc_sync(netdev, fbnic_uc_sync, fbnic_uc_unsync);
+	if (err == -ENOSPC)
+		uc_promisc = true;
+	err = __dev_mc_sync(netdev, fbnic_mc_sync, fbnic_mc_unsync);
+	if (err == -ENOSPC)
+		mc_promisc = true;
+
+	uc_promisc |= !!(netdev->flags & IFF_PROMISC);
+	mc_promisc |= !!(netdev->flags & IFF_ALLMULTI) || uc_promisc;
+
+	/* Populate last TCAM entry with promiscuous entry and 0/1 bit mask */
+	mac_addr = &fbd->mac_addr[FBNIC_RPC_TCAM_MACDA_PROMISC_IDX];
+	if (uc_promisc) {
+		if (!is_zero_ether_addr(mac_addr->value.addr8) ||
+		    mac_addr->state != FBNIC_TCAM_S_VALID) {
+			eth_zero_addr(mac_addr->value.addr8);
+			eth_broadcast_addr(mac_addr->mask.addr8);
+			clear_bit(FBNIC_MAC_ADDR_T_ALLMULTI,
+				  mac_addr->act_tcam);
+			set_bit(FBNIC_MAC_ADDR_T_PROMISC,
+				mac_addr->act_tcam);
+			mac_addr->state = FBNIC_TCAM_S_ADD;
+		}
+	} else if (mc_promisc &&
+		   (!fbnic_bmc_present(fbd) || !fbd->fw_cap.all_multi)) {
+		/* We have to add a special handler for multicast as the
+		 * BMC may have an all-multi rule already in place. As such
+		 * adding a rule ourselves won't do any good so we will have
+		 * to modify the rules for the ALL MULTI below if the BMC
+		 * already has the rule in place.
+		 */
+		if (!is_multicast_ether_addr(mac_addr->value.addr8) ||
+		    mac_addr->state != FBNIC_TCAM_S_VALID) {
+			eth_zero_addr(mac_addr->value.addr8);
+			eth_broadcast_addr(mac_addr->mask.addr8);
+			mac_addr->value.addr8[0] ^= 1;
+			mac_addr->mask.addr8[0] ^= 1;
+			set_bit(FBNIC_MAC_ADDR_T_ALLMULTI,
+				mac_addr->act_tcam);
+			clear_bit(FBNIC_MAC_ADDR_T_PROMISC,
+				  mac_addr->act_tcam);
+			mac_addr->state = FBNIC_TCAM_S_ADD;
+		}
+	} else if (mac_addr->state == FBNIC_TCAM_S_VALID) {
+		if (test_bit(FBNIC_MAC_ADDR_T_BMC, mac_addr->act_tcam)) {
+			clear_bit(FBNIC_MAC_ADDR_T_ALLMULTI,
+				  mac_addr->act_tcam);
+			clear_bit(FBNIC_MAC_ADDR_T_PROMISC,
+				  mac_addr->act_tcam);
+		} else {
+			mac_addr->state = FBNIC_TCAM_S_DELETE;
+		}
+	}
+
+	/* Add rules for BMC all multicast if it is enabled */
+	fbnic_bmc_rpc_all_multi_config(fbd, mc_promisc);
+
+	/* Sift out any unshared BMC rules and place them in BMC only section */
+	fbnic_sift_macda(fbd);
+
+	/* Write updates to hardware */
+	fbnic_write_rules(fbd);
+	fbnic_write_macda(fbd);
+}
+
+static void fbnic_set_rx_mode(struct net_device *netdev)
+{
+	/* No need to update the hardware if we are not running */
+	if (netif_running(netdev))
+		__fbnic_set_rx_mode(netdev);
+}
+
+static int fbnic_set_mac(struct net_device *netdev, void *p)
+{
+	struct sockaddr *addr = p;
+
+	if (!is_valid_ether_addr(addr->sa_data))
+		return -EADDRNOTAVAIL;
+
+	eth_hw_addr_set(netdev, addr->sa_data);
+
+	fbnic_set_rx_mode(netdev);
+
+	return 0;
+}
+
+void fbnic_clear_rx_mode(struct net_device *netdev)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_dev *fbd = fbn->fbd;
+	int idx;
+
+	for (idx = ARRAY_SIZE(fbd->mac_addr); idx--;) {
+		struct fbnic_mac_addr *mac_addr = &fbd->mac_addr[idx];
+
+		if (mac_addr->state != FBNIC_TCAM_S_VALID)
+			continue;
+
+		bitmap_clear(mac_addr->act_tcam,
+			     FBNIC_MAC_ADDR_T_HOST_START,
+			     FBNIC_MAC_ADDR_T_HOST_LEN);
+
+		if (bitmap_empty(mac_addr->act_tcam,
+				 FBNIC_RPC_TCAM_ACT_NUM_ENTRIES))
+			mac_addr->state = FBNIC_TCAM_S_DELETE;
+	}
+
+	/* Write updates to hardware */
+	fbnic_write_macda(fbd);
+
+	__dev_uc_unsync(netdev, NULL);
+	__dev_mc_unsync(netdev, NULL);
+}
+
+static const struct net_device_ops fbnic_netdev_ops = {
+	.ndo_open		= fbnic_open,
+	.ndo_stop		= fbnic_stop,
+	.ndo_validate_addr	= eth_validate_addr,
+	.ndo_start_xmit		= fbnic_xmit_frame,
+	.ndo_features_check	= fbnic_features_check,
+	.ndo_set_mac_address	= fbnic_set_mac,
+	.ndo_set_rx_mode	= fbnic_set_rx_mode,
+};
+
+void fbnic_reset_queues(struct fbnic_net *fbn,
+			unsigned int tx, unsigned int rx)
+{
+	struct fbnic_dev *fbd = fbn->fbd;
+	unsigned int max_napis;
+
+	max_napis = fbd->num_irqs - FBNIC_NON_NAPI_VECTORS;
+
+	tx = min(tx, max_napis);
+	fbn->num_tx_queues = tx;
+
+	rx = min(rx, max_napis);
+	fbn->num_rx_queues = rx;
+
+	fbn->num_napi = max(tx, rx);
+}
+
+/**
+ * fbnic_netdev_free - Free the netdev associate with fbnic
+ * @fbd: Driver specific structure to free netdev from
+ *
+ * Allocate and initialize the netdev and netdev private structure. Bind
+ * together the hardware, netdev, and pci data structures.
+ **/
+void fbnic_netdev_free(struct fbnic_dev *fbd)
+{
+	struct fbnic_net *fbn = netdev_priv(fbd->netdev);
+
+	if (fbn->phylink)
+		phylink_destroy(fbn->phylink);
+
+	free_netdev(fbd->netdev);
+	fbd->netdev = NULL;
+}
+
+/**
+ * fbnic_netdev_alloc - Allocate a netdev and associate with fbnic
+ * @fbd: Driver specific structure to associate netdev with
+ *
+ * Allocate and initialize the netdev and netdev private structure. Bind
+ * together the hardware, netdev, and pci data structures.
+ *
+ *  Return: 0 on success, negative on failure
+ **/
+struct net_device *fbnic_netdev_alloc(struct fbnic_dev *fbd)
+{
+	struct net_device *netdev;
+	struct fbnic_net *fbn;
+	int default_queues;
+
+	netdev = alloc_etherdev_mq(sizeof(*fbn), FBNIC_MAX_RXQS);
+	if (!netdev)
+		return NULL;
+
+	SET_NETDEV_DEV(netdev, fbd->dev);
+	fbd->netdev = netdev;
+
+	netdev->netdev_ops = &fbnic_netdev_ops;
+
+	fbn = netdev_priv(netdev);
+
+	fbn->netdev = netdev;
+	fbn->fbd = fbd;
+	INIT_LIST_HEAD(&fbn->napis);
+
+	fbn->txq_size = FBNIC_TXQ_SIZE_DEFAULT;
+	fbn->hpq_size = FBNIC_HPQ_SIZE_DEFAULT;
+	fbn->ppq_size = FBNIC_PPQ_SIZE_DEFAULT;
+	fbn->rcq_size = FBNIC_RCQ_SIZE_DEFAULT;
+
+	default_queues = netif_get_num_default_rss_queues();
+	if (default_queues > fbd->max_num_queues)
+		default_queues = fbd->max_num_queues;
+
+	fbnic_reset_queues(fbn, default_queues, default_queues);
+
+	fbnic_reset_indir_tbl(fbn);
+	fbnic_rss_key_fill(fbn->rss_key);
+	fbnic_rss_init_en_mask(fbn);
+
+	netdev->features |=
+		NETIF_F_RXHASH |
+		NETIF_F_SG |
+		NETIF_F_HW_CSUM |
+		NETIF_F_RXCSUM;
+
+	netdev->hw_features |= netdev->features;
+	netdev->vlan_features |= netdev->features;
+	netdev->hw_enc_features |= netdev->features;
+
+	netdev->min_mtu = IPV6_MIN_MTU;
+	netdev->max_mtu = FBNIC_MAX_JUMBO_FRAME_SIZE - ETH_HLEN;
+
+	/* TBD: This is workaround for BMC as phylink doesn't have support
+	 * for leavling the link enabled if a BMC is present.
+	 */
+	netdev->ethtool->wol_enabled = true;
+
+	fbn->fec = FBNIC_FEC_AUTO | FBNIC_FEC_RS;
+	fbn->link_mode = FBNIC_LINK_AUTO | FBNIC_LINK_50R2;
+	netif_carrier_off(netdev);
+
+	netif_tx_stop_all_queues(netdev);
+
+	if (fbnic_phylink_init(netdev)) {
+		fbnic_netdev_free(fbd);
+		return NULL;
+	}
+
+	return netdev;
+}
+
+static int fbnic_dsn_to_mac_addr(u64 dsn, char *addr)
+{
+	addr[0] = (dsn >> 56) & 0xFF;
+	addr[1] = (dsn >> 48) & 0xFF;
+	addr[2] = (dsn >> 40) & 0xFF;
+	addr[3] = (dsn >> 16) & 0xFF;
+	addr[4] = (dsn >> 8) & 0xFF;
+	addr[5] = dsn & 0xFF;
+
+	return is_valid_ether_addr(addr) ? 0 : -EINVAL;
+}
+
+/**
+ * fbnic_netdev_register - Initialize general software structures
+ * @netdev: Netdev containing structure to initialize and register
+ *
+ * Initialize the MAC address for the netdev and register it.
+ *
+ *  Return: 0 on success, negative on failure
+ **/
+int fbnic_netdev_register(struct net_device *netdev)
+{
+	struct fbnic_net *fbn = netdev_priv(netdev);
+	struct fbnic_dev *fbd = fbn->fbd;
+	u64 dsn = fbd->dsn;
+	u8 addr[ETH_ALEN];
+	int err;
+
+	err = fbnic_dsn_to_mac_addr(dsn, addr);
+	if (!err) {
+		ether_addr_copy(netdev->perm_addr, addr);
+		eth_hw_addr_set(netdev, addr);
+	} else {
+		/* A randomly assigned MAC address will cause provisioning
+		 * issues so instead just fail to spawn the netdev and
+		 * avoid any confusion.
+		 */
+		dev_err(fbd->dev, "MAC addr %pM invalid\n", addr);
+		return err;
+	}
+
+	return register_netdev(netdev);
+}
+
+void fbnic_netdev_unregister(struct net_device *netdev)
+{
+	unregister_netdev(netdev);
+}