From 5b7c4cabbb65f5c469464da6c5f614cbd7f730f2 Mon Sep 17 00:00:00 2001 From: Linus Torvalds Date: Tue, 21 Feb 2023 18:24:12 -0800 Subject: Merge tag 'net-next-6.3' of git://git.kernel.org/pub/scm/linux/kernel/git/netdev/net-next 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(). ... --- .../net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c | 571 +++++++++++++++++++++ 1 file changed, 571 insertions(+) create mode 100644 drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c') diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c new file mode 100644 index 000000000..1672d3afe --- /dev/null +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_tc_matchall.c @@ -0,0 +1,571 @@ +// SPDX-License-Identifier: GPL-2.0-only +/* Copyright (C) 2019 Chelsio Communications. All rights reserved. */ + +#include "cxgb4.h" +#include "cxgb4_tc_matchall.h" +#include "sched.h" +#include "cxgb4_uld.h" +#include "cxgb4_filter.h" +#include "cxgb4_tc_flower.h" + +static int cxgb4_policer_validate(const struct flow_action *action, + const struct flow_action_entry *act, + struct netlink_ext_ack *extack) +{ + if (act->police.exceed.act_id != FLOW_ACTION_DROP) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when exceed action is not drop"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id != FLOW_ACTION_PIPE && + act->police.notexceed.act_id != FLOW_ACTION_ACCEPT) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is not pipe or ok"); + return -EOPNOTSUPP; + } + + if (act->police.notexceed.act_id == FLOW_ACTION_ACCEPT && + !flow_action_is_last_entry(action, act)) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when conform action is ok, but action is not last"); + return -EOPNOTSUPP; + } + + if (act->police.peakrate_bytes_ps || + act->police.avrate || act->police.overhead) { + NL_SET_ERR_MSG_MOD(extack, + "Offload not supported when peakrate/avrate/overhead is configured"); + return -EOPNOTSUPP; + } + + if (act->police.rate_pkt_ps) { + NL_SET_ERR_MSG_MOD(extack, + "QoS offload not support packets per second"); + return -EOPNOTSUPP; + } + + return 0; +} + +static int cxgb4_matchall_egress_validate(struct net_device *dev, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + struct flow_action *actions = &cls->rule->action; + struct port_info *pi = netdev2pinfo(dev); + struct flow_action_entry *entry; + struct ch_sched_queue qe; + struct sched_class *e; + u64 max_link_rate; + u32 i, speed; + int ret; + + if (!flow_action_has_entries(actions)) { + NL_SET_ERR_MSG_MOD(extack, + "Egress MATCHALL offload needs at least 1 policing action"); + return -EINVAL; + } else if (!flow_offload_has_one_action(actions)) { + NL_SET_ERR_MSG_MOD(extack, + "Egress MATCHALL offload only supports 1 policing action"); + return -EINVAL; + } else if (pi->tc_block_shared) { + NL_SET_ERR_MSG_MOD(extack, + "Egress MATCHALL offload not supported with shared blocks"); + return -EINVAL; + } + + ret = t4_get_link_params(pi, NULL, &speed, NULL); + if (ret) { + NL_SET_ERR_MSG_MOD(extack, + "Failed to get max speed supported by the link"); + return -EINVAL; + } + + /* Convert from Mbps to bps */ + max_link_rate = (u64)speed * 1000 * 1000; + + flow_action_for_each(i, entry, actions) { + switch (entry->id) { + case FLOW_ACTION_POLICE: + ret = cxgb4_policer_validate(actions, entry, extack); + if (ret) + return ret; + + /* Convert bytes per second to bits per second */ + if (entry->police.rate_bytes_ps * 8 > max_link_rate) { + NL_SET_ERR_MSG_MOD(extack, + "Specified policing max rate is larger than underlying link speed"); + return -ERANGE; + } + break; + default: + NL_SET_ERR_MSG_MOD(extack, + "Only policing action supported with Egress MATCHALL offload"); + return -EOPNOTSUPP; + } + } + + for (i = 0; i < pi->nqsets; i++) { + memset(&qe, 0, sizeof(qe)); + qe.queue = i; + + e = cxgb4_sched_queue_lookup(dev, &qe); + if (e && e->info.u.params.level != SCHED_CLASS_LEVEL_CH_RL) { + NL_SET_ERR_MSG_MOD(extack, + "Some queues are already bound to different class"); + return -EBUSY; + } + } + + return 0; +} + +static int cxgb4_matchall_tc_bind_queues(struct net_device *dev, u32 tc) +{ + struct port_info *pi = netdev2pinfo(dev); + struct ch_sched_queue qe; + int ret; + u32 i; + + for (i = 0; i < pi->nqsets; i++) { + qe.queue = i; + qe.class = tc; + ret = cxgb4_sched_class_bind(dev, &qe, SCHED_QUEUE); + if (ret) + goto out_free; + } + + return 0; + +out_free: + while (i--) { + qe.queue = i; + qe.class = SCHED_CLS_NONE; + cxgb4_sched_class_unbind(dev, &qe, SCHED_QUEUE); + } + + return ret; +} + +static void cxgb4_matchall_tc_unbind_queues(struct net_device *dev) +{ + struct port_info *pi = netdev2pinfo(dev); + struct ch_sched_queue qe; + u32 i; + + for (i = 0; i < pi->nqsets; i++) { + qe.queue = i; + qe.class = SCHED_CLS_NONE; + cxgb4_sched_class_unbind(dev, &qe, SCHED_QUEUE); + } +} + +static int cxgb4_matchall_alloc_tc(struct net_device *dev, + struct tc_cls_matchall_offload *cls) +{ + struct ch_sched_params p = { + .type = SCHED_CLASS_TYPE_PACKET, + .u.params.level = SCHED_CLASS_LEVEL_CH_RL, + .u.params.mode = SCHED_CLASS_MODE_CLASS, + .u.params.rateunit = SCHED_CLASS_RATEUNIT_BITS, + .u.params.ratemode = SCHED_CLASS_RATEMODE_ABS, + .u.params.class = SCHED_CLS_NONE, + .u.params.minrate = 0, + .u.params.weight = 0, + .u.params.pktsize = dev->mtu, + }; + struct netlink_ext_ack *extack = cls->common.extack; + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + struct flow_action_entry *entry; + struct sched_class *e; + int ret; + u32 i; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + + flow_action_for_each(i, entry, &cls->rule->action) + if (entry->id == FLOW_ACTION_POLICE) + break; + + ret = cxgb4_policer_validate(&cls->rule->action, entry, extack); + if (ret) + return ret; + + /* Convert from bytes per second to Kbps */ + p.u.params.maxrate = div_u64(entry->police.rate_bytes_ps * 8, 1000); + p.u.params.channel = pi->tx_chan; + e = cxgb4_sched_class_alloc(dev, &p); + if (!e) { + NL_SET_ERR_MSG_MOD(extack, + "No free traffic class available for policing action"); + return -ENOMEM; + } + + ret = cxgb4_matchall_tc_bind_queues(dev, e->idx); + if (ret) { + NL_SET_ERR_MSG_MOD(extack, + "Could not bind queues to traffic class"); + goto out_free; + } + + tc_port_matchall->egress.hwtc = e->idx; + tc_port_matchall->egress.cookie = cls->cookie; + tc_port_matchall->egress.state = CXGB4_MATCHALL_STATE_ENABLED; + return 0; + +out_free: + cxgb4_sched_class_free(dev, e->idx); + return ret; +} + +static void cxgb4_matchall_free_tc(struct net_device *dev) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + cxgb4_matchall_tc_unbind_queues(dev); + cxgb4_sched_class_free(dev, tc_port_matchall->egress.hwtc); + + tc_port_matchall->egress.hwtc = SCHED_CLS_NONE; + tc_port_matchall->egress.cookie = 0; + tc_port_matchall->egress.state = CXGB4_MATCHALL_STATE_DISABLED; +} + +static int cxgb4_matchall_mirror_alloc(struct net_device *dev, + struct tc_cls_matchall_offload *cls) +{ + struct netlink_ext_ack *extack = cls->common.extack; + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + struct flow_action_entry *act; + int ret; + u32 i; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + flow_action_for_each(i, act, &cls->rule->action) { + if (act->id == FLOW_ACTION_MIRRED) { + ret = cxgb4_port_mirror_alloc(dev); + if (ret) { + NL_SET_ERR_MSG_MOD(extack, + "Couldn't allocate mirror"); + return ret; + } + + tc_port_matchall->ingress.viid_mirror = pi->viid_mirror; + break; + } + } + + return 0; +} + +static void cxgb4_matchall_mirror_free(struct net_device *dev) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + if (!tc_port_matchall->ingress.viid_mirror) + return; + + cxgb4_port_mirror_free(dev); + tc_port_matchall->ingress.viid_mirror = 0; +} + +static int cxgb4_matchall_del_filter(struct net_device *dev, u8 filter_type) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + int ret; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + ret = cxgb4_del_filter(dev, tc_port_matchall->ingress.tid[filter_type], + &tc_port_matchall->ingress.fs[filter_type]); + if (ret) + return ret; + + tc_port_matchall->ingress.tid[filter_type] = 0; + return 0; +} + +static int cxgb4_matchall_add_filter(struct net_device *dev, + struct tc_cls_matchall_offload *cls, + u8 filter_type) +{ + struct netlink_ext_ack *extack = cls->common.extack; + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + struct ch_filter_specification *fs; + int ret, fidx; + + /* Get a free filter entry TID, where we can insert this new + * rule. Only insert rule if its prio doesn't conflict with + * existing rules. + */ + fidx = cxgb4_get_free_ftid(dev, filter_type ? PF_INET6 : PF_INET, + false, cls->common.prio); + if (fidx < 0) { + NL_SET_ERR_MSG_MOD(extack, + "No free LETCAM index available"); + return -ENOMEM; + } + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + fs = &tc_port_matchall->ingress.fs[filter_type]; + memset(fs, 0, sizeof(*fs)); + + if (fidx < adap->tids.nhpftids) + fs->prio = 1; + fs->tc_prio = cls->common.prio; + fs->tc_cookie = cls->cookie; + fs->type = filter_type; + fs->hitcnts = 1; + + fs->val.pfvf_vld = 1; + fs->val.pf = adap->pf; + fs->val.vf = pi->vin; + + cxgb4_process_flow_actions(dev, &cls->rule->action, fs); + + ret = cxgb4_set_filter(dev, fidx, fs); + if (ret) + return ret; + + tc_port_matchall->ingress.tid[filter_type] = fidx; + return 0; +} + +static int cxgb4_matchall_alloc_filter(struct net_device *dev, + struct tc_cls_matchall_offload *cls) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + int ret, i; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + + ret = cxgb4_matchall_mirror_alloc(dev, cls); + if (ret) + return ret; + + for (i = 0; i < CXGB4_FILTER_TYPE_MAX; i++) { + ret = cxgb4_matchall_add_filter(dev, cls, i); + if (ret) + goto out_free; + } + + tc_port_matchall->ingress.state = CXGB4_MATCHALL_STATE_ENABLED; + return 0; + +out_free: + while (i-- > 0) + cxgb4_matchall_del_filter(dev, i); + + cxgb4_matchall_mirror_free(dev); + return ret; +} + +static int cxgb4_matchall_free_filter(struct net_device *dev) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + int ret; + u8 i; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + + for (i = 0; i < CXGB4_FILTER_TYPE_MAX; i++) { + ret = cxgb4_matchall_del_filter(dev, i); + if (ret) + return ret; + } + + cxgb4_matchall_mirror_free(dev); + + tc_port_matchall->ingress.packets = 0; + tc_port_matchall->ingress.bytes = 0; + tc_port_matchall->ingress.last_used = 0; + tc_port_matchall->ingress.state = CXGB4_MATCHALL_STATE_DISABLED; + return 0; +} + +int cxgb4_tc_matchall_replace(struct net_device *dev, + struct tc_cls_matchall_offload *cls_matchall, + bool ingress) +{ + struct netlink_ext_ack *extack = cls_matchall->common.extack; + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + int ret; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + if (ingress) { + if (tc_port_matchall->ingress.state == + CXGB4_MATCHALL_STATE_ENABLED) { + NL_SET_ERR_MSG_MOD(extack, + "Only 1 Ingress MATCHALL can be offloaded"); + return -ENOMEM; + } + + ret = cxgb4_validate_flow_actions(dev, + &cls_matchall->rule->action, + extack, 1); + if (ret) + return ret; + + return cxgb4_matchall_alloc_filter(dev, cls_matchall); + } + + if (tc_port_matchall->egress.state == CXGB4_MATCHALL_STATE_ENABLED) { + NL_SET_ERR_MSG_MOD(extack, + "Only 1 Egress MATCHALL can be offloaded"); + return -ENOMEM; + } + + ret = cxgb4_matchall_egress_validate(dev, cls_matchall); + if (ret) + return ret; + + return cxgb4_matchall_alloc_tc(dev, cls_matchall); +} + +int cxgb4_tc_matchall_destroy(struct net_device *dev, + struct tc_cls_matchall_offload *cls_matchall, + bool ingress) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + if (ingress) { + /* All the filter types of this matchall rule save the + * same cookie. So, checking for the first one is + * enough. + */ + if (cls_matchall->cookie != + tc_port_matchall->ingress.fs[0].tc_cookie) + return -ENOENT; + + return cxgb4_matchall_free_filter(dev); + } + + if (cls_matchall->cookie != tc_port_matchall->egress.cookie) + return -ENOENT; + + cxgb4_matchall_free_tc(dev); + return 0; +} + +int cxgb4_tc_matchall_stats(struct net_device *dev, + struct tc_cls_matchall_offload *cls_matchall) +{ + u64 tmp_packets, tmp_bytes, packets = 0, bytes = 0; + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct cxgb4_matchall_ingress_entry *ingress; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + int ret; + u8 i; + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + if (tc_port_matchall->ingress.state == CXGB4_MATCHALL_STATE_DISABLED) + return -ENOENT; + + ingress = &tc_port_matchall->ingress; + for (i = 0; i < CXGB4_FILTER_TYPE_MAX; i++) { + ret = cxgb4_get_filter_counters(dev, ingress->tid[i], + &tmp_packets, &tmp_bytes, + ingress->fs[i].hash); + if (ret) + return ret; + + packets += tmp_packets; + bytes += tmp_bytes; + } + + if (tc_port_matchall->ingress.packets != packets) { + flow_stats_update(&cls_matchall->stats, + bytes - tc_port_matchall->ingress.bytes, + packets - tc_port_matchall->ingress.packets, + 0, tc_port_matchall->ingress.last_used, + FLOW_ACTION_HW_STATS_IMMEDIATE); + + tc_port_matchall->ingress.packets = packets; + tc_port_matchall->ingress.bytes = bytes; + tc_port_matchall->ingress.last_used = jiffies; + } + + return 0; +} + +static void cxgb4_matchall_disable_offload(struct net_device *dev) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct port_info *pi = netdev2pinfo(dev); + struct adapter *adap = netdev2adap(dev); + + tc_port_matchall = &adap->tc_matchall->port_matchall[pi->port_id]; + if (tc_port_matchall->egress.state == CXGB4_MATCHALL_STATE_ENABLED) + cxgb4_matchall_free_tc(dev); + + if (tc_port_matchall->ingress.state == CXGB4_MATCHALL_STATE_ENABLED) + cxgb4_matchall_free_filter(dev); +} + +int cxgb4_init_tc_matchall(struct adapter *adap) +{ + struct cxgb4_tc_port_matchall *tc_port_matchall; + struct cxgb4_tc_matchall *tc_matchall; + int ret; + + tc_matchall = kzalloc(sizeof(*tc_matchall), GFP_KERNEL); + if (!tc_matchall) + return -ENOMEM; + + tc_port_matchall = kcalloc(adap->params.nports, + sizeof(*tc_port_matchall), + GFP_KERNEL); + if (!tc_port_matchall) { + ret = -ENOMEM; + goto out_free_matchall; + } + + tc_matchall->port_matchall = tc_port_matchall; + adap->tc_matchall = tc_matchall; + return 0; + +out_free_matchall: + kfree(tc_matchall); + return ret; +} + +void cxgb4_cleanup_tc_matchall(struct adapter *adap) +{ + u8 i; + + if (adap->tc_matchall) { + if (adap->tc_matchall->port_matchall) { + for (i = 0; i < adap->params.nports; i++) { + struct net_device *dev = adap->port[i]; + + if (dev) + cxgb4_matchall_disable_offload(dev); + } + kfree(adap->tc_matchall->port_matchall); + } + kfree(adap->tc_matchall); + } +} -- cgit v1.2.3