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author | 2023-02-21 18:24:12 -0800 | |
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committer | 2023-02-21 18:24:12 -0800 | |
commit | 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 (patch) | |
tree | cc5c2d0a898769fd59549594fedb3ee6f84e59a0 /drivers/net/ethernet/netronome/nfp/nfp_net_sriov.c | |
download | linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.tar.gz linux-5b7c4cabbb65f5c469464da6c5f614cbd7f730f2.zip |
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.c | 311 |
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; +} |