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authorLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
committerLibravatar Linus Torvalds <torvalds@linux-foundation.org>2023-02-21 18:24:12 -0800
commit5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch)
treecc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
downloadlinux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz
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Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-nextgrafted
Pull networking updates from Jakub Kicinski: "Core: - Add dedicated kmem_cache for typical/small skb->head, avoid having to access struct page at kfree time, and improve memory use. - Introduce sysctl to set default RPS configuration for new netdevs. - Define Netlink protocol specification format which can be used to describe messages used by each family and auto-generate parsers. Add tools for generating kernel data structures and uAPI headers. - Expose all net/core sysctls inside netns. - Remove 4s sleep in netpoll if carrier is instantly detected on boot. - Add configurable limit of MDB entries per port, and port-vlan. - Continue populating drop reasons throughout the stack. - Retire a handful of legacy Qdiscs and classifiers. Protocols: - Support IPv4 big TCP (TSO frames larger than 64kB). - Add IP_LOCAL_PORT_RANGE socket option, to control local port range on socket by socket basis. - Track and report in procfs number of MPTCP sockets used. - Support mixing IPv4 and IPv6 flows in the in-kernel MPTCP path manager. - IPv6: don't check net.ipv6.route.max_size and rely on garbage collection to free memory (similarly to IPv4). - Support Penultimate Segment Pop (PSP) flavor in SRv6 (RFC8986). - ICMP: add per-rate limit counters. - Add support for user scanning requests in ieee802154. - Remove static WEP support. - Support minimal Wi-Fi 7 Extremely High Throughput (EHT) rate reporting. - WiFi 7 EHT channel puncturing support (client & AP). BPF: - Add a rbtree data structure following the "next-gen data structure" precedent set by recently added linked list, that is, by using kfunc + kptr instead of adding a new BPF map type. - Expose XDP hints via kfuncs with initial support for RX hash and timestamp metadata. - Add BPF_F_NO_TUNNEL_KEY extension to bpf_skb_set_tunnel_key to better support decap on GRE tunnel devices not operating in collect metadata. - Improve x86 JIT's codegen for PROBE_MEM runtime error checks. - Remove the need for trace_printk_lock for bpf_trace_printk and bpf_trace_vprintk helpers. - Extend libbpf's bpf_tracing.h support for tracing arguments of kprobes/uprobes and syscall as a special case. - Significantly reduce the search time for module symbols by livepatch and BPF. - Enable cpumasks to be used as kptrs, which is useful for tracing programs tracking which tasks end up running on which CPUs in different time intervals. - Add support for BPF trampoline on s390x and riscv64. - Add capability to export the XDP features supported by the NIC. - Add __bpf_kfunc tag for marking kernel functions as kfuncs. - Add cgroup.memory=nobpf kernel parameter option to disable BPF memory accounting for container environments. Netfilter: - Remove the CLUSTERIP target. It has been marked as obsolete for years, and we still have WARN splats wrt races of the out-of-band /proc interface installed by this target. - Add 'destroy' commands to nf_tables. They are identical to the existing 'delete' commands, but do not return an error if the referenced object (set, chain, rule...) did not exist. Driver API: - Improve cpumask_local_spread() locality to help NICs set the right IRQ affinity on AMD platforms. - Separate C22 and C45 MDIO bus transactions more clearly. - Introduce new DCB table to control DSCP rewrite on egress. - Support configuration of Physical Layer Collision Avoidance (PLCA) Reconciliation Sublayer (RS) (802.3cg-2019). Modern version of shared medium Ethernet. - Support for MAC Merge layer (IEEE 802.3-2018 clause 99). Allowing preemption of low priority frames by high priority frames. - Add support for controlling MACSec offload using netlink SET. - Rework devlink instance refcounts to allow registration and de-registration under the instance lock. Split the code into multiple files, drop some of the unnecessarily granular locks and factor out common parts of netlink operation handling. - Add TX frame aggregation parameters (for USB drivers). - Add a new attr TCA_EXT_WARN_MSG to report TC (offload) warning messages with notifications for debug. - Allow offloading of UDP NEW connections via act_ct. - Add support for per action HW stats in TC. - Support hardware miss to TC action (continue processing in SW from a specific point in the action chain). - Warn if old Wireless Extension user space interface is used with modern cfg80211/mac80211 drivers. Do not support Wireless Extensions for Wi-Fi 7 devices at all. Everyone should switch to using nl80211 interface instead. - Improve the CAN bit timing configuration. Use extack to return error messages directly to user space, update the SJW handling, including the definition of a new default value that will benefit CAN-FD controllers, by increasing their oscillator tolerance. New hardware / drivers: - Ethernet: - nVidia BlueField-3 support (control traffic driver) - Ethernet support for imx93 SoCs - Motorcomm yt8531 gigabit Ethernet PHY - onsemi NCN26000 10BASE-T1S PHY (with support for PLCA) - Microchip LAN8841 PHY (incl. cable diagnostics and PTP) - Amlogic gxl MDIO mux - WiFi: - RealTek RTL8188EU (rtl8xxxu) - Qualcomm Wi-Fi 7 devices (ath12k) - CAN: - Renesas R-Car V4H Drivers: - Bluetooth: - Set Per Platform Antenna Gain (PPAG) for Intel controllers. - Ethernet NICs: - Intel (1G, igc): - support TSN / Qbv / packet scheduling features of i226 model - Intel (100G, ice): - use GNSS subsystem instead of TTY - multi-buffer XDP support - extend support for GPIO pins to E823 devices - nVidia/Mellanox: - update the shared buffer configuration on PFC commands - implement PTP adjphase function for HW offset control - TC support for Geneve and GRE with VF tunnel offload - more efficient crypto key management method - multi-port eswitch support - Netronome/Corigine: - add DCB IEEE support - support IPsec offloading for NFP3800 - Freescale/NXP (enetc): - support XDP_REDIRECT for XDP non-linear buffers - improve reconfig, avoid link flap and waiting for idle - support MAC Merge layer - Other NICs: - sfc/ef100: add basic devlink support for ef100 - ionic: rx_push mode operation (writing descriptors via MMIO) - bnxt: use the auxiliary bus abstraction for RDMA - r8169: disable ASPM and reset bus in case of tx timeout - cpsw: support QSGMII mode for J721e CPSW9G - cpts: support pulse-per-second output - ngbe: add an mdio bus driver - usbnet: optimize usbnet_bh() by avoiding unnecessary queuing - r8152: handle devices with FW with NCM support - amd-xgbe: support 10Mbps, 2.5GbE speeds and rx-adaptation - virtio-net: support multi buffer XDP - virtio/vsock: replace virtio_vsock_pkt with sk_buff - tsnep: XDP support - Ethernet high-speed switches: - nVidia/Mellanox (mlxsw): - add support for latency TLV (in FW control messages) - Microchip (sparx5): - separate explicit and implicit traffic forwarding rules, make the implicit rules always active - add support for egress DSCP rewrite - IS0 VCAP support (Ingress Classification) - IS2 VCAP filters (protos, L3 addrs, L4 ports, flags, ToS etc.) - ES2 VCAP support (Egress Access Control) - support for Per-Stream Filtering and Policing (802.1Q, 8.6.5.1) - Ethernet embedded switches: - Marvell (mv88e6xxx): - add MAB (port auth) offload support - enable PTP receive for mv88e6390 - NXP (ocelot): - support MAC Merge layer - support for the the vsc7512 internal copper phys - Microchip: - lan9303: convert to PHYLINK - lan966x: support TC flower filter statistics - lan937x: PTP support for KSZ9563/KSZ8563 and LAN937x - lan937x: support Credit Based Shaper configuration - ksz9477: support Energy Efficient Ethernet - other: - qca8k: convert to regmap read/write API, use bulk operations - rswitch: Improve TX timestamp accuracy - Intel WiFi (iwlwifi): - EHT (Wi-Fi 7) rate reporting - STEP equalizer support: transfer some STEP (connection to radio on platforms with integrated wifi) related parameters from the BIOS to the firmware. - Qualcomm 802.11ax WiFi (ath11k): - IPQ5018 support - Fine Timing Measurement (FTM) responder role support - channel 177 support - MediaTek WiFi (mt76): - per-PHY LED support - mt7996: EHT (Wi-Fi 7) support - Wireless Ethernet Dispatch (WED) reset support - switch to using page pool allocator - RealTek WiFi (rtw89): - support new version of Bluetooth co-existance - Mobile: - rmnet: support TX aggregation" * tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next: (1872 commits) page_pool: add a comment explaining the fragment counter usage net: ethtool: fix __ethtool_dev_mm_supported() implementation ethtool: pse-pd: Fix double word in comments xsk: add linux/vmalloc.h to xsk.c sefltests: netdevsim: wait for devlink instance after netns removal selftest: fib_tests: Always cleanup before exit net/mlx5e: Align IPsec ASO result memory to be as required by hardware net/mlx5e: TC, Set CT miss to the specific ct action instance net/mlx5e: Rename CHAIN_TO_REG to MAPPED_OBJ_TO_REG net/mlx5: Refactor tc miss handling to a single function net/mlx5: Kconfig: Make tc offload depend on tc skb extension net/sched: flower: Support hardware miss to tc action net/sched: flower: Move filter handle initialization earlier net/sched: cls_api: Support hardware miss to tc action net/sched: Rename user cookie and act cookie sfc: fix builds without CONFIG_RTC_LIB sfc: clean up some inconsistent indentings net/mlx4_en: Introduce flexible array to silence overflow warning net: lan966x: Fix possible deadlock inside PTP net/ulp: Remove redundant ->clone() test in inet_clone_ulp(). ...
Diffstat (limited to 'drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c')
-rw-r--r--drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c311
1 files changed, 311 insertions, 0 deletions
diff --git a/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
new file mode 100644
index 000000000..6eeeb0fda
--- /dev/null
+++ b/drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c
@@ -0,0 +1,311 @@
+// SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause)
+/* Copyright (C) 2017-2019 Netronome Systems, Inc. */
+
+#include <linux/bitfield.h>
+#include <linux/errno.h>
+#include <linux/etherdevice.h>
+#include <linux/if_link.h>
+#include <linux/if_ether.h>
+
+#include "nfpcore/nfp_cpp.h"
+#include "nfp_app.h"
+#include "nfp_main.h"
+#include "nfp_net_ctrl.h"
+#include "nfp_net.h"
+#include "nfp_net_sriov.h"
+
+static int
+nfp_net_sriov_check(struct nfp_app *app, int vf, u16 cap, const char *msg, bool warn)
+{
+ u16 cap_vf;
+
+ if (!app || !app->pf->vfcfg_tbl2)
+ return -EOPNOTSUPP;
+
+ cap_vf = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_CAP);
+ if ((cap_vf & cap) != cap) {
+ if (warn)
+ nfp_warn(app->pf->cpp, "ndo_set_vf_%s not supported\n", msg);
+ return -EOPNOTSUPP;
+ }
+
+ if (vf < 0 || vf >= app->pf->num_vfs) {
+ if (warn)
+ nfp_warn(app->pf->cpp, "invalid VF id %d\n", vf);
+ return -EINVAL;
+ }
+
+ return 0;
+}
+
+static int
+nfp_net_sriov_update(struct nfp_app *app, int vf, u16 update, const char *msg)
+{
+ struct nfp_net *nn;
+ int ret;
+
+ /* Write update info to mailbox in VF config symbol */
+ writeb(vf, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_VF_NUM);
+ writew(update, app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_UPD);
+
+ nn = list_first_entry(&app->pf->vnics, struct nfp_net, vnic_list);
+ /* Signal VF reconfiguration */
+ ret = nfp_net_reconfig(nn, NFP_NET_CFG_UPDATE_VF);
+ if (ret)
+ return ret;
+
+ ret = readw(app->pf->vfcfg_tbl2 + NFP_NET_VF_CFG_MB_RET);
+ if (ret)
+ nfp_warn(app->pf->cpp,
+ "FW refused VF %s update with errno: %d\n", msg, ret);
+ return -ret;
+}
+
+int nfp_app_set_vf_mac(struct net_device *netdev, int vf, u8 *mac)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ unsigned int vf_offset;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_MAC, "mac", true);
+ if (err)
+ return err;
+
+ if (is_multicast_ether_addr(mac)) {
+ nfp_warn(app->pf->cpp,
+ "invalid Ethernet address %pM for VF id %d\n",
+ mac, vf);
+ return -EINVAL;
+ }
+
+ /* Write MAC to VF entry in VF config symbol */
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
+ writel(get_unaligned_be32(mac), app->pf->vfcfg_tbl2 + vf_offset);
+ writew(get_unaligned_be16(mac + 4),
+ app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
+
+ err = nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_MAC, "MAC");
+ if (!err)
+ nfp_info(app->pf->cpp,
+ "MAC %pM set on VF %d, reload the VF driver to make this change effective.\n",
+ mac, vf);
+
+ return err;
+}
+
+int nfp_app_set_vf_vlan(struct net_device *netdev, int vf, u16 vlan, u8 qos,
+ __be16 vlan_proto)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ u16 update = NFP_NET_VF_CFG_MB_UPD_VLAN;
+ bool is_proto_sup = true;
+ unsigned int vf_offset;
+ u32 vlan_tag;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN, "vlan", true);
+ if (err)
+ return err;
+
+ if (!eth_type_vlan(vlan_proto))
+ return -EOPNOTSUPP;
+
+ if (vlan > 4095 || qos > 7) {
+ nfp_warn(app->pf->cpp,
+ "invalid vlan id or qos for VF id %d\n", vf);
+ return -EINVAL;
+ }
+
+ /* Check if fw supports or not */
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN_PROTO, "vlan_proto", true);
+ if (err)
+ is_proto_sup = false;
+
+ if (vlan_proto != htons(ETH_P_8021Q)) {
+ if (!is_proto_sup)
+ return -EOPNOTSUPP;
+ update |= NFP_NET_VF_CFG_MB_UPD_VLAN_PROTO;
+ }
+
+ /* Write VLAN tag to VF entry in VF config symbol */
+ vlan_tag = FIELD_PREP(NFP_NET_VF_CFG_VLAN_VID, vlan) |
+ FIELD_PREP(NFP_NET_VF_CFG_VLAN_QOS, qos);
+
+ /* vlan_tag of 0 means that the configuration should be cleared and in
+ * such circumstances setting the TPID has no meaning when
+ * configuring firmware.
+ */
+ if (vlan_tag && is_proto_sup)
+ vlan_tag |= FIELD_PREP(NFP_NET_VF_CFG_VLAN_PROT, ntohs(vlan_proto));
+
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
+ writel(vlan_tag, app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
+
+ return nfp_net_sriov_update(app, vf, update, "vlan");
+}
+
+int nfp_app_set_vf_rate(struct net_device *netdev, int vf,
+ int min_tx_rate, int max_tx_rate)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ u32 vf_offset, ratevalue;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_RATE, "rate", true);
+ if (err)
+ return err;
+
+ if (max_tx_rate >= NFP_NET_VF_RATE_MAX ||
+ min_tx_rate >= NFP_NET_VF_RATE_MAX) {
+ nfp_warn(app->cpp, "tx-rate exceeds %d.\n",
+ NFP_NET_VF_RATE_MAX);
+ return -EINVAL;
+ }
+
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
+ ratevalue = FIELD_PREP(NFP_NET_VF_CFG_MAX_RATE,
+ max_tx_rate ? max_tx_rate :
+ NFP_NET_VF_RATE_MAX) |
+ FIELD_PREP(NFP_NET_VF_CFG_MIN_RATE, min_tx_rate);
+
+ writel(ratevalue,
+ app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_RATE);
+
+ return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_RATE,
+ "rate");
+}
+
+int nfp_app_set_vf_spoofchk(struct net_device *netdev, int vf, bool enable)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ unsigned int vf_offset;
+ u8 vf_ctrl;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_SPOOF,
+ "spoofchk", true);
+ if (err)
+ return err;
+
+ /* Write spoof check control bit to VF entry in VF config symbol */
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
+ NFP_NET_VF_CFG_CTRL;
+ vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
+ vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_SPOOF;
+ vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_SPOOF, enable);
+ writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
+
+ return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_SPOOF,
+ "spoofchk");
+}
+
+int nfp_app_set_vf_trust(struct net_device *netdev, int vf, bool enable)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ unsigned int vf_offset;
+ u8 vf_ctrl;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_TRUST,
+ "trust", true);
+ if (err)
+ return err;
+
+ /* Write trust control bit to VF entry in VF config symbol */
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
+ NFP_NET_VF_CFG_CTRL;
+ vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
+ vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_TRUST;
+ vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_TRUST, enable);
+ writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
+
+ return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_TRUST,
+ "trust");
+}
+
+int nfp_app_set_vf_link_state(struct net_device *netdev, int vf,
+ int link_state)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ unsigned int vf_offset;
+ u8 vf_ctrl;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_LINK_STATE,
+ "link_state", true);
+ if (err)
+ return err;
+
+ switch (link_state) {
+ case IFLA_VF_LINK_STATE_AUTO:
+ case IFLA_VF_LINK_STATE_ENABLE:
+ case IFLA_VF_LINK_STATE_DISABLE:
+ break;
+ default:
+ return -EINVAL;
+ }
+
+ /* Write link state to VF entry in VF config symbol */
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ +
+ NFP_NET_VF_CFG_CTRL;
+ vf_ctrl = readb(app->pf->vfcfg_tbl2 + vf_offset);
+ vf_ctrl &= ~NFP_NET_VF_CFG_CTRL_LINK_STATE;
+ vf_ctrl |= FIELD_PREP(NFP_NET_VF_CFG_CTRL_LINK_STATE, link_state);
+ writeb(vf_ctrl, app->pf->vfcfg_tbl2 + vf_offset);
+
+ return nfp_net_sriov_update(app, vf, NFP_NET_VF_CFG_MB_UPD_LINK_STATE,
+ "link state");
+}
+
+int nfp_app_get_vf_config(struct net_device *netdev, int vf,
+ struct ifla_vf_info *ivi)
+{
+ struct nfp_app *app = nfp_app_from_netdev(netdev);
+ u32 vf_offset, mac_hi, rate;
+ u32 vlan_tag;
+ u16 mac_lo;
+ u8 flags;
+ int err;
+
+ err = nfp_net_sriov_check(app, vf, 0, "", true);
+ if (err)
+ return err;
+
+ vf_offset = NFP_NET_VF_CFG_MB_SZ + vf * NFP_NET_VF_CFG_SZ;
+
+ mac_hi = readl(app->pf->vfcfg_tbl2 + vf_offset);
+ mac_lo = readw(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_MAC_LO);
+
+ flags = readb(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_CTRL);
+ vlan_tag = readl(app->pf->vfcfg_tbl2 + vf_offset + NFP_NET_VF_CFG_VLAN);
+
+ memset(ivi, 0, sizeof(*ivi));
+ ivi->vf = vf;
+
+ put_unaligned_be32(mac_hi, &ivi->mac[0]);
+ put_unaligned_be16(mac_lo, &ivi->mac[4]);
+
+ ivi->vlan = FIELD_GET(NFP_NET_VF_CFG_VLAN_VID, vlan_tag);
+ ivi->qos = FIELD_GET(NFP_NET_VF_CFG_VLAN_QOS, vlan_tag);
+ if (!nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_VLAN_PROTO, "vlan_proto", false))
+ ivi->vlan_proto = htons(FIELD_GET(NFP_NET_VF_CFG_VLAN_PROT, vlan_tag));
+ ivi->spoofchk = FIELD_GET(NFP_NET_VF_CFG_CTRL_SPOOF, flags);
+ ivi->trusted = FIELD_GET(NFP_NET_VF_CFG_CTRL_TRUST, flags);
+ ivi->linkstate = FIELD_GET(NFP_NET_VF_CFG_CTRL_LINK_STATE, flags);
+
+ err = nfp_net_sriov_check(app, vf, NFP_NET_VF_CFG_MB_CAP_RATE, "rate", false);
+ if (!err) {
+ rate = readl(app->pf->vfcfg_tbl2 + vf_offset +
+ NFP_NET_VF_CFG_RATE);
+
+ ivi->max_tx_rate = FIELD_GET(NFP_NET_VF_CFG_MAX_RATE, rate);
+ ivi->min_tx_rate = FIELD_GET(NFP_NET_VF_CFG_MIN_RATE, rate);
+
+ if (ivi->max_tx_rate == NFP_NET_VF_RATE_MAX)
+ ivi->max_tx_rate = 0;
+ if (ivi->min_tx_rate == NFP_NET_VF_RATE_MAX)
+ ivi->min_tx_rate = 0;
+ }
+
+ return 0;
+}