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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/mscc/ocelot_flower.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 '')
-rw-r--r--drivers/net/ethernet/mscc/ocelot_flower.c1005
1 files changed, 1005 insertions, 0 deletions
diff --git a/drivers/net/ethernet/mscc/ocelot_flower.c b/drivers/net/ethernet/mscc/ocelot_flower.c
new file mode 100644
index 000000000..ee052404e
--- /dev/null
+++ b/drivers/net/ethernet/mscc/ocelot_flower.c
@@ -0,0 +1,1005 @@
+// SPDX-License-Identifier: (GPL-2.0 OR MIT)
+/* Microsemi Ocelot Switch driver
+ * Copyright (c) 2019 Microsemi Corporation
+ */
+
+#include <net/pkt_cls.h>
+#include <net/tc_act/tc_gact.h>
+#include <soc/mscc/ocelot_vcap.h>
+#include "ocelot_police.h"
+#include "ocelot_vcap.h"
+
+/* Arbitrarily chosen constants for encoding the VCAP block and lookup number
+ * into the chain number. This is UAPI.
+ */
+#define VCAP_BLOCK 10000
+#define VCAP_LOOKUP 1000
+#define VCAP_IS1_NUM_LOOKUPS 3
+#define VCAP_IS2_NUM_LOOKUPS 2
+#define VCAP_IS2_NUM_PAG 256
+#define VCAP_IS1_CHAIN(lookup) \
+ (1 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP)
+#define VCAP_IS2_CHAIN(lookup, pag) \
+ (2 * VCAP_BLOCK + (lookup) * VCAP_LOOKUP + (pag))
+/* PSFP chain and block ID */
+#define PSFP_BLOCK_ID OCELOT_NUM_VCAP_BLOCKS
+#define OCELOT_PSFP_CHAIN (3 * VCAP_BLOCK)
+
+static int ocelot_chain_to_block(int chain, bool ingress)
+{
+ int lookup, pag;
+
+ if (!ingress) {
+ if (chain == 0)
+ return VCAP_ES0;
+ return -EOPNOTSUPP;
+ }
+
+ /* Backwards compatibility with older, single-chain tc-flower
+ * offload support in Ocelot
+ */
+ if (chain == 0)
+ return VCAP_IS2;
+
+ for (lookup = 0; lookup < VCAP_IS1_NUM_LOOKUPS; lookup++)
+ if (chain == VCAP_IS1_CHAIN(lookup))
+ return VCAP_IS1;
+
+ for (lookup = 0; lookup < VCAP_IS2_NUM_LOOKUPS; lookup++)
+ for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++)
+ if (chain == VCAP_IS2_CHAIN(lookup, pag))
+ return VCAP_IS2;
+
+ if (chain == OCELOT_PSFP_CHAIN)
+ return PSFP_BLOCK_ID;
+
+ return -EOPNOTSUPP;
+}
+
+/* Caller must ensure this is a valid IS1 or IS2 chain first,
+ * by calling ocelot_chain_to_block.
+ */
+static int ocelot_chain_to_lookup(int chain)
+{
+ /* Backwards compatibility with older, single-chain tc-flower
+ * offload support in Ocelot
+ */
+ if (chain == 0)
+ return 0;
+
+ return (chain / VCAP_LOOKUP) % 10;
+}
+
+/* Caller must ensure this is a valid IS2 chain first,
+ * by calling ocelot_chain_to_block.
+ */
+static int ocelot_chain_to_pag(int chain)
+{
+ int lookup;
+
+ /* Backwards compatibility with older, single-chain tc-flower
+ * offload support in Ocelot
+ */
+ if (chain == 0)
+ return 0;
+
+ lookup = ocelot_chain_to_lookup(chain);
+
+ /* calculate PAG value as chain index relative to the first PAG */
+ return chain - VCAP_IS2_CHAIN(lookup, 0);
+}
+
+static bool ocelot_is_goto_target_valid(int goto_target, int chain,
+ bool ingress)
+{
+ int pag;
+
+ /* Can't offload GOTO in VCAP ES0 */
+ if (!ingress)
+ return (goto_target < 0);
+
+ /* Non-optional GOTOs */
+ if (chain == 0)
+ /* VCAP IS1 can be skipped, either partially or completely */
+ return (goto_target == VCAP_IS1_CHAIN(0) ||
+ goto_target == VCAP_IS1_CHAIN(1) ||
+ goto_target == VCAP_IS1_CHAIN(2) ||
+ goto_target == VCAP_IS2_CHAIN(0, 0) ||
+ goto_target == VCAP_IS2_CHAIN(1, 0) ||
+ goto_target == OCELOT_PSFP_CHAIN);
+
+ if (chain == VCAP_IS1_CHAIN(0))
+ return (goto_target == VCAP_IS1_CHAIN(1));
+
+ if (chain == VCAP_IS1_CHAIN(1))
+ return (goto_target == VCAP_IS1_CHAIN(2));
+
+ /* Lookup 2 of VCAP IS1 can really support non-optional GOTOs,
+ * using a Policy Association Group (PAG) value, which is an 8-bit
+ * value encoding a VCAP IS2 target chain.
+ */
+ if (chain == VCAP_IS1_CHAIN(2)) {
+ for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++)
+ if (goto_target == VCAP_IS2_CHAIN(0, pag))
+ return true;
+
+ return false;
+ }
+
+ /* Non-optional GOTO from VCAP IS2 lookup 0 to lookup 1.
+ * We cannot change the PAG at this point.
+ */
+ for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++)
+ if (chain == VCAP_IS2_CHAIN(0, pag))
+ return (goto_target == VCAP_IS2_CHAIN(1, pag));
+
+ /* VCAP IS2 lookup 1 can goto to PSFP block if hardware support */
+ for (pag = 0; pag < VCAP_IS2_NUM_PAG; pag++)
+ if (chain == VCAP_IS2_CHAIN(1, pag))
+ return (goto_target == OCELOT_PSFP_CHAIN);
+
+ return false;
+}
+
+static struct ocelot_vcap_filter *
+ocelot_find_vcap_filter_that_points_at(struct ocelot *ocelot, int chain)
+{
+ struct ocelot_vcap_filter *filter;
+ struct ocelot_vcap_block *block;
+ int block_id;
+
+ block_id = ocelot_chain_to_block(chain, true);
+ if (block_id < 0)
+ return NULL;
+
+ if (block_id == VCAP_IS2) {
+ block = &ocelot->block[VCAP_IS1];
+
+ list_for_each_entry(filter, &block->rules, list)
+ if (filter->type == OCELOT_VCAP_FILTER_PAG &&
+ filter->goto_target == chain)
+ return filter;
+ }
+
+ list_for_each_entry(filter, &ocelot->dummy_rules, list)
+ if (filter->goto_target == chain)
+ return filter;
+
+ return NULL;
+}
+
+static int
+ocelot_flower_parse_ingress_vlan_modify(struct ocelot *ocelot, int port,
+ struct ocelot_vcap_filter *filter,
+ const struct flow_action_entry *a,
+ struct netlink_ext_ack *extack)
+{
+ struct ocelot_port *ocelot_port = ocelot->ports[port];
+
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+
+ if (!ocelot_port->vlan_aware) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Can only modify VLAN under VLAN aware bridge");
+ return -EOPNOTSUPP;
+ }
+
+ filter->action.vid_replace_ena = true;
+ filter->action.pcp_dei_ena = true;
+ filter->action.vid = a->vlan.vid;
+ filter->action.pcp = a->vlan.prio;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+
+ return 0;
+}
+
+static int
+ocelot_flower_parse_egress_vlan_modify(struct ocelot_vcap_filter *filter,
+ const struct flow_action_entry *a,
+ struct netlink_ext_ack *extack)
+{
+ enum ocelot_tag_tpid_sel tpid;
+
+ switch (ntohs(a->vlan.proto)) {
+ case ETH_P_8021Q:
+ tpid = OCELOT_TAG_TPID_SEL_8021Q;
+ break;
+ case ETH_P_8021AD:
+ tpid = OCELOT_TAG_TPID_SEL_8021AD;
+ break;
+ default:
+ NL_SET_ERR_MSG_MOD(extack,
+ "Cannot modify custom TPID");
+ return -EOPNOTSUPP;
+ }
+
+ filter->action.tag_a_tpid_sel = tpid;
+ filter->action.push_outer_tag = OCELOT_ES0_TAG;
+ filter->action.tag_a_vid_sel = OCELOT_ES0_VID_PLUS_CLASSIFIED_VID;
+ filter->action.vid_a_val = a->vlan.vid;
+ filter->action.pcp_a_val = a->vlan.prio;
+ filter->action.tag_a_pcp_sel = OCELOT_ES0_PCP;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+
+ return 0;
+}
+
+static int ocelot_flower_parse_action(struct ocelot *ocelot, int port,
+ bool ingress, struct flow_cls_offload *f,
+ struct ocelot_vcap_filter *filter)
+{
+ const struct flow_action *action = &f->rule->action;
+ struct netlink_ext_ack *extack = f->common.extack;
+ bool allow_missing_goto_target = false;
+ const struct flow_action_entry *a;
+ enum ocelot_tag_tpid_sel tpid;
+ int i, chain, egress_port;
+ u32 pol_ix, pol_max;
+ u64 rate;
+ int err;
+
+ if (!flow_action_basic_hw_stats_check(&f->rule->action,
+ f->common.extack))
+ return -EOPNOTSUPP;
+
+ chain = f->common.chain_index;
+ filter->block_id = ocelot_chain_to_block(chain, ingress);
+ if (filter->block_id < 0) {
+ NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain");
+ return -EOPNOTSUPP;
+ }
+ if (filter->block_id == VCAP_IS1 || filter->block_id == VCAP_IS2)
+ filter->lookup = ocelot_chain_to_lookup(chain);
+ if (filter->block_id == VCAP_IS2)
+ filter->pag = ocelot_chain_to_pag(chain);
+
+ filter->goto_target = -1;
+ filter->type = OCELOT_VCAP_FILTER_DUMMY;
+
+ flow_action_for_each(i, a, action) {
+ switch (a->id) {
+ case FLOW_ACTION_DROP:
+ if (filter->block_id != VCAP_IS2) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Drop action can only be offloaded to VCAP IS2");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ filter->action.mask_mode = OCELOT_MASK_MODE_PERMIT_DENY;
+ filter->action.port_mask = 0;
+ filter->action.police_ena = true;
+ filter->action.pol_ix = OCELOT_POLICER_DISCARD;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_ACCEPT:
+ if (filter->block_id != VCAP_ES0 &&
+ filter->block_id != VCAP_IS1 &&
+ filter->block_id != VCAP_IS2) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Accept action can only be offloaded to VCAP chains");
+ return -EOPNOTSUPP;
+ }
+ if (filter->block_id != VCAP_ES0 &&
+ filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_TRAP:
+ if (filter->block_id != VCAP_IS2 ||
+ filter->lookup != 0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Trap action can only be offloaded to VCAP IS2 lookup 0");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ filter->action.mask_mode = OCELOT_MASK_MODE_PERMIT_DENY;
+ filter->action.port_mask = 0;
+ filter->action.cpu_copy_ena = true;
+ filter->action.cpu_qu_num = 0;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ filter->is_trap = true;
+ break;
+ case FLOW_ACTION_POLICE:
+ if (filter->block_id == PSFP_BLOCK_ID) {
+ filter->type = OCELOT_PSFP_FILTER_OFFLOAD;
+ break;
+ }
+ if (filter->block_id != VCAP_IS2 ||
+ filter->lookup != 0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Police action can only be offloaded to VCAP IS2 lookup 0 or PSFP");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+
+ err = ocelot_policer_validate(action, a, extack);
+ if (err)
+ return err;
+
+ filter->action.police_ena = true;
+
+ pol_ix = a->hw_index + ocelot->vcap_pol.base;
+ pol_max = ocelot->vcap_pol.max;
+
+ if (ocelot->vcap_pol.max2 && pol_ix > pol_max) {
+ pol_ix += ocelot->vcap_pol.base2 - pol_max - 1;
+ pol_max = ocelot->vcap_pol.max2;
+ }
+
+ if (pol_ix >= pol_max)
+ return -EINVAL;
+
+ filter->action.pol_ix = pol_ix;
+
+ rate = a->police.rate_bytes_ps;
+ filter->action.pol.rate = div_u64(rate, 1000) * 8;
+ filter->action.pol.burst = a->police.burst;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_REDIRECT:
+ if (filter->block_id != VCAP_IS2) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Redirect action can only be offloaded to VCAP IS2");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ egress_port = ocelot->ops->netdev_to_port(a->dev);
+ if (egress_port < 0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Destination not an ocelot port");
+ return -EOPNOTSUPP;
+ }
+ filter->action.mask_mode = OCELOT_MASK_MODE_REDIRECT;
+ filter->action.port_mask = BIT(egress_port);
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_MIRRED:
+ if (filter->block_id != VCAP_IS2) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Mirror action can only be offloaded to VCAP IS2");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ egress_port = ocelot->ops->netdev_to_port(a->dev);
+ if (egress_port < 0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Destination not an ocelot port");
+ return -EOPNOTSUPP;
+ }
+ filter->egress_port.value = egress_port;
+ filter->action.mirror_ena = true;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_VLAN_POP:
+ if (filter->block_id != VCAP_IS1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN pop action can only be offloaded to VCAP IS1");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ filter->action.vlan_pop_cnt_ena = true;
+ filter->action.vlan_pop_cnt++;
+ if (filter->action.vlan_pop_cnt > 2) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Cannot pop more than 2 VLAN headers");
+ return -EOPNOTSUPP;
+ }
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_VLAN_MANGLE:
+ if (filter->block_id == VCAP_IS1) {
+ err = ocelot_flower_parse_ingress_vlan_modify(ocelot, port,
+ filter, a,
+ extack);
+ } else if (filter->block_id == VCAP_ES0) {
+ err = ocelot_flower_parse_egress_vlan_modify(filter, a,
+ extack);
+ } else {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN modify action can only be offloaded to VCAP IS1 or ES0");
+ err = -EOPNOTSUPP;
+ }
+ if (err)
+ return err;
+ break;
+ case FLOW_ACTION_PRIORITY:
+ if (filter->block_id != VCAP_IS1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Priority action can only be offloaded to VCAP IS1");
+ return -EOPNOTSUPP;
+ }
+ if (filter->goto_target != -1) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Last action must be GOTO");
+ return -EOPNOTSUPP;
+ }
+ filter->action.qos_ena = true;
+ filter->action.qos_val = a->priority;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_GOTO:
+ filter->goto_target = a->chain_index;
+
+ if (filter->block_id == VCAP_IS1 && filter->lookup == 2) {
+ int pag = ocelot_chain_to_pag(filter->goto_target);
+
+ filter->action.pag_override_mask = 0xff;
+ filter->action.pag_val = pag;
+ filter->type = OCELOT_VCAP_FILTER_PAG;
+ }
+ break;
+ case FLOW_ACTION_VLAN_PUSH:
+ if (filter->block_id != VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VLAN push action can only be offloaded to VCAP ES0");
+ return -EOPNOTSUPP;
+ }
+ switch (ntohs(a->vlan.proto)) {
+ case ETH_P_8021Q:
+ tpid = OCELOT_TAG_TPID_SEL_8021Q;
+ break;
+ case ETH_P_8021AD:
+ tpid = OCELOT_TAG_TPID_SEL_8021AD;
+ break;
+ default:
+ NL_SET_ERR_MSG_MOD(extack,
+ "Cannot push custom TPID");
+ return -EOPNOTSUPP;
+ }
+ filter->action.tag_a_tpid_sel = tpid;
+ filter->action.push_outer_tag = OCELOT_ES0_TAG;
+ filter->action.tag_a_vid_sel = OCELOT_ES0_VID;
+ filter->action.vid_a_val = a->vlan.vid;
+ filter->action.pcp_a_val = a->vlan.prio;
+ filter->type = OCELOT_VCAP_FILTER_OFFLOAD;
+ break;
+ case FLOW_ACTION_GATE:
+ if (filter->block_id != PSFP_BLOCK_ID) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Gate action can only be offloaded to PSFP chain");
+ return -EOPNOTSUPP;
+ }
+ filter->type = OCELOT_PSFP_FILTER_OFFLOAD;
+ break;
+ default:
+ NL_SET_ERR_MSG_MOD(extack, "Cannot offload action");
+ return -EOPNOTSUPP;
+ }
+ }
+
+ if (filter->goto_target == -1) {
+ if ((filter->block_id == VCAP_IS2 && filter->lookup == 1) ||
+ chain == 0 || filter->block_id == PSFP_BLOCK_ID) {
+ allow_missing_goto_target = true;
+ } else {
+ NL_SET_ERR_MSG_MOD(extack, "Missing GOTO action");
+ return -EOPNOTSUPP;
+ }
+ }
+
+ if (!ocelot_is_goto_target_valid(filter->goto_target, chain, ingress) &&
+ !allow_missing_goto_target) {
+ NL_SET_ERR_MSG_MOD(extack, "Cannot offload this GOTO target");
+ return -EOPNOTSUPP;
+ }
+
+ return 0;
+}
+
+static int ocelot_flower_parse_indev(struct ocelot *ocelot, int port,
+ struct flow_cls_offload *f,
+ struct ocelot_vcap_filter *filter)
+{
+ struct flow_rule *rule = flow_cls_offload_flow_rule(f);
+ const struct vcap_props *vcap = &ocelot->vcap[VCAP_ES0];
+ int key_length = vcap->keys[VCAP_ES0_IGR_PORT].length;
+ struct netlink_ext_ack *extack = f->common.extack;
+ struct net_device *dev, *indev;
+ struct flow_match_meta match;
+ int ingress_port;
+
+ flow_rule_match_meta(rule, &match);
+
+ if (!match.mask->ingress_ifindex)
+ return 0;
+
+ if (match.mask->ingress_ifindex != 0xFFFFFFFF) {
+ NL_SET_ERR_MSG_MOD(extack, "Unsupported ingress ifindex mask");
+ return -EOPNOTSUPP;
+ }
+
+ dev = ocelot->ops->port_to_netdev(ocelot, port);
+ if (!dev)
+ return -EINVAL;
+
+ indev = __dev_get_by_index(dev_net(dev), match.key->ingress_ifindex);
+ if (!indev) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Can't find the ingress port to match on");
+ return -ENOENT;
+ }
+
+ ingress_port = ocelot->ops->netdev_to_port(indev);
+ if (ingress_port < 0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Can only offload an ocelot ingress port");
+ return -EOPNOTSUPP;
+ }
+ if (ingress_port == port) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Ingress port is equal to the egress port");
+ return -EINVAL;
+ }
+
+ filter->ingress_port.value = ingress_port;
+ filter->ingress_port.mask = GENMASK(key_length - 1, 0);
+
+ return 0;
+}
+
+static int
+ocelot_flower_parse_key(struct ocelot *ocelot, int port, bool ingress,
+ struct flow_cls_offload *f,
+ struct ocelot_vcap_filter *filter)
+{
+ struct flow_rule *rule = flow_cls_offload_flow_rule(f);
+ struct flow_dissector *dissector = rule->match.dissector;
+ struct netlink_ext_ack *extack = f->common.extack;
+ u16 proto = ntohs(f->common.protocol);
+ bool match_protocol = true;
+ int ret;
+
+ if (dissector->used_keys &
+ ~(BIT(FLOW_DISSECTOR_KEY_CONTROL) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_META) |
+ BIT(FLOW_DISSECTOR_KEY_PORTS) |
+ BIT(FLOW_DISSECTOR_KEY_VLAN) |
+ BIT(FLOW_DISSECTOR_KEY_IPV4_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_IPV6_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS))) {
+ return -EOPNOTSUPP;
+ }
+
+ /* For VCAP ES0 (egress rewriter) we can match on the ingress port */
+ if (!ingress) {
+ ret = ocelot_flower_parse_indev(ocelot, port, f, filter);
+ if (ret)
+ return ret;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_CONTROL)) {
+ struct flow_match_control match;
+
+ flow_rule_match_control(rule, &match);
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_VLAN)) {
+ struct flow_match_vlan match;
+
+ flow_rule_match_vlan(rule, &match);
+ filter->key_type = OCELOT_VCAP_KEY_ANY;
+ filter->vlan.vid.value = match.key->vlan_id;
+ filter->vlan.vid.mask = match.mask->vlan_id;
+ filter->vlan.pcp.value[0] = match.key->vlan_priority;
+ filter->vlan.pcp.mask[0] = match.mask->vlan_priority;
+ match_protocol = false;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_ETH_ADDRS)) {
+ struct flow_match_eth_addrs match;
+
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on MAC address");
+ return -EOPNOTSUPP;
+ }
+
+ /* The hw support mac matches only for MAC_ETYPE key,
+ * therefore if other matches(port, tcp flags, etc) are added
+ * then just bail out
+ */
+ if ((dissector->used_keys &
+ (BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_CONTROL))) !=
+ (BIT(FLOW_DISSECTOR_KEY_ETH_ADDRS) |
+ BIT(FLOW_DISSECTOR_KEY_BASIC) |
+ BIT(FLOW_DISSECTOR_KEY_CONTROL)))
+ return -EOPNOTSUPP;
+
+ flow_rule_match_eth_addrs(rule, &match);
+
+ if (filter->block_id == VCAP_IS1 &&
+ !is_zero_ether_addr(match.mask->dst)) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Key type S1_NORMAL cannot match on destination MAC");
+ return -EOPNOTSUPP;
+ }
+
+ filter->key_type = OCELOT_VCAP_KEY_ETYPE;
+ ether_addr_copy(filter->key.etype.dmac.value,
+ match.key->dst);
+ ether_addr_copy(filter->key.etype.smac.value,
+ match.key->src);
+ ether_addr_copy(filter->key.etype.dmac.mask,
+ match.mask->dst);
+ ether_addr_copy(filter->key.etype.smac.mask,
+ match.mask->src);
+ goto finished_key_parsing;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_BASIC)) {
+ struct flow_match_basic match;
+
+ flow_rule_match_basic(rule, &match);
+ if (ntohs(match.key->n_proto) == ETH_P_IP) {
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on IP protocol");
+ return -EOPNOTSUPP;
+ }
+
+ filter->key_type = OCELOT_VCAP_KEY_IPV4;
+ filter->key.ipv4.proto.value[0] =
+ match.key->ip_proto;
+ filter->key.ipv4.proto.mask[0] =
+ match.mask->ip_proto;
+ match_protocol = false;
+ }
+ if (ntohs(match.key->n_proto) == ETH_P_IPV6) {
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on IP protocol");
+ return -EOPNOTSUPP;
+ }
+
+ filter->key_type = OCELOT_VCAP_KEY_IPV6;
+ filter->key.ipv6.proto.value[0] =
+ match.key->ip_proto;
+ filter->key.ipv6.proto.mask[0] =
+ match.mask->ip_proto;
+ match_protocol = false;
+ }
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV4_ADDRS) &&
+ proto == ETH_P_IP) {
+ struct flow_match_ipv4_addrs match;
+ u8 *tmp;
+
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on IP address");
+ return -EOPNOTSUPP;
+ }
+
+ flow_rule_match_ipv4_addrs(rule, &match);
+
+ if (filter->block_id == VCAP_IS1 && *(u32 *)&match.mask->dst) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "Key type S1_NORMAL cannot match on destination IP");
+ return -EOPNOTSUPP;
+ }
+
+ tmp = &filter->key.ipv4.sip.value.addr[0];
+ memcpy(tmp, &match.key->src, 4);
+
+ tmp = &filter->key.ipv4.sip.mask.addr[0];
+ memcpy(tmp, &match.mask->src, 4);
+
+ tmp = &filter->key.ipv4.dip.value.addr[0];
+ memcpy(tmp, &match.key->dst, 4);
+
+ tmp = &filter->key.ipv4.dip.mask.addr[0];
+ memcpy(tmp, &match.mask->dst, 4);
+ match_protocol = false;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_IPV6_ADDRS) &&
+ proto == ETH_P_IPV6) {
+ return -EOPNOTSUPP;
+ }
+
+ if (flow_rule_match_key(rule, FLOW_DISSECTOR_KEY_PORTS)) {
+ struct flow_match_ports match;
+
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on L4 ports");
+ return -EOPNOTSUPP;
+ }
+
+ flow_rule_match_ports(rule, &match);
+ filter->key.ipv4.sport.value = ntohs(match.key->src);
+ filter->key.ipv4.sport.mask = ntohs(match.mask->src);
+ filter->key.ipv4.dport.value = ntohs(match.key->dst);
+ filter->key.ipv4.dport.mask = ntohs(match.mask->dst);
+ match_protocol = false;
+ }
+
+finished_key_parsing:
+ if (match_protocol && proto != ETH_P_ALL) {
+ if (filter->block_id == VCAP_ES0) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 cannot match on L2 proto");
+ return -EOPNOTSUPP;
+ }
+
+ /* TODO: support SNAP, LLC etc */
+ if (proto < ETH_P_802_3_MIN)
+ return -EOPNOTSUPP;
+ filter->key_type = OCELOT_VCAP_KEY_ETYPE;
+ *(__be16 *)filter->key.etype.etype.value = htons(proto);
+ *(__be16 *)filter->key.etype.etype.mask = htons(0xffff);
+ }
+ /* else, a filter of type OCELOT_VCAP_KEY_ANY is implicitly added */
+
+ return 0;
+}
+
+static int ocelot_flower_parse(struct ocelot *ocelot, int port, bool ingress,
+ struct flow_cls_offload *f,
+ struct ocelot_vcap_filter *filter)
+{
+ int ret;
+
+ filter->prio = f->common.prio;
+ filter->id.cookie = f->cookie;
+ filter->id.tc_offload = true;
+
+ ret = ocelot_flower_parse_action(ocelot, port, ingress, f, filter);
+ if (ret)
+ return ret;
+
+ /* PSFP filter need to parse key by stream identification function. */
+ if (filter->type == OCELOT_PSFP_FILTER_OFFLOAD)
+ return 0;
+
+ return ocelot_flower_parse_key(ocelot, port, ingress, f, filter);
+}
+
+static struct ocelot_vcap_filter
+*ocelot_vcap_filter_create(struct ocelot *ocelot, int port, bool ingress,
+ struct flow_cls_offload *f)
+{
+ struct ocelot_vcap_filter *filter;
+
+ filter = kzalloc(sizeof(*filter), GFP_KERNEL);
+ if (!filter)
+ return NULL;
+
+ if (ingress) {
+ filter->ingress_port_mask = BIT(port);
+ } else {
+ const struct vcap_props *vcap = &ocelot->vcap[VCAP_ES0];
+ int key_length = vcap->keys[VCAP_ES0_EGR_PORT].length;
+
+ filter->egress_port.value = port;
+ filter->egress_port.mask = GENMASK(key_length - 1, 0);
+ }
+
+ return filter;
+}
+
+static int ocelot_vcap_dummy_filter_add(struct ocelot *ocelot,
+ struct ocelot_vcap_filter *filter)
+{
+ list_add(&filter->list, &ocelot->dummy_rules);
+
+ return 0;
+}
+
+static int ocelot_vcap_dummy_filter_del(struct ocelot *ocelot,
+ struct ocelot_vcap_filter *filter)
+{
+ list_del(&filter->list);
+ kfree(filter);
+
+ return 0;
+}
+
+/* If we have an egress VLAN modification rule, we need to actually write the
+ * delta between the input VLAN (from the key) and the output VLAN (from the
+ * action), but the action was parsed first. So we need to patch the delta into
+ * the action here.
+ */
+static int
+ocelot_flower_patch_es0_vlan_modify(struct ocelot_vcap_filter *filter,
+ struct netlink_ext_ack *extack)
+{
+ if (filter->block_id != VCAP_ES0 ||
+ filter->action.tag_a_vid_sel != OCELOT_ES0_VID_PLUS_CLASSIFIED_VID)
+ return 0;
+
+ if (filter->vlan.vid.mask != VLAN_VID_MASK) {
+ NL_SET_ERR_MSG_MOD(extack,
+ "VCAP ES0 VLAN rewriting needs a full VLAN in the key");
+ return -EOPNOTSUPP;
+ }
+
+ filter->action.vid_a_val -= filter->vlan.vid.value;
+ filter->action.vid_a_val &= VLAN_VID_MASK;
+
+ return 0;
+}
+
+int ocelot_cls_flower_replace(struct ocelot *ocelot, int port,
+ struct flow_cls_offload *f, bool ingress)
+{
+ struct netlink_ext_ack *extack = f->common.extack;
+ struct ocelot_vcap_filter *filter;
+ int chain = f->common.chain_index;
+ int block_id, ret;
+
+ if (chain && !ocelot_find_vcap_filter_that_points_at(ocelot, chain)) {
+ NL_SET_ERR_MSG_MOD(extack, "No default GOTO action points to this chain");
+ return -EOPNOTSUPP;
+ }
+
+ block_id = ocelot_chain_to_block(chain, ingress);
+ if (block_id < 0) {
+ NL_SET_ERR_MSG_MOD(extack, "Cannot offload to this chain");
+ return -EOPNOTSUPP;
+ }
+
+ filter = ocelot_vcap_block_find_filter_by_id(&ocelot->block[block_id],
+ f->cookie, true);
+ if (filter) {
+ /* Filter already exists on other ports */
+ if (!ingress) {
+ NL_SET_ERR_MSG_MOD(extack, "VCAP ES0 does not support shared filters");
+ return -EOPNOTSUPP;
+ }
+
+ filter->ingress_port_mask |= BIT(port);
+
+ return ocelot_vcap_filter_replace(ocelot, filter);
+ }
+
+ /* Filter didn't exist, create it now */
+ filter = ocelot_vcap_filter_create(ocelot, port, ingress, f);
+ if (!filter)
+ return -ENOMEM;
+
+ ret = ocelot_flower_parse(ocelot, port, ingress, f, filter);
+ if (ret) {
+ kfree(filter);
+ return ret;
+ }
+
+ ret = ocelot_flower_patch_es0_vlan_modify(filter, extack);
+ if (ret) {
+ kfree(filter);
+ return ret;
+ }
+
+ /* The non-optional GOTOs for the TCAM skeleton don't need
+ * to be actually offloaded.
+ */
+ if (filter->type == OCELOT_VCAP_FILTER_DUMMY)
+ return ocelot_vcap_dummy_filter_add(ocelot, filter);
+
+ if (filter->type == OCELOT_PSFP_FILTER_OFFLOAD) {
+ kfree(filter);
+ if (ocelot->ops->psfp_filter_add)
+ return ocelot->ops->psfp_filter_add(ocelot, port, f);
+
+ NL_SET_ERR_MSG_MOD(extack, "PSFP chain is not supported in HW");
+ return -EOPNOTSUPP;
+ }
+
+ return ocelot_vcap_filter_add(ocelot, filter, f->common.extack);
+}
+EXPORT_SYMBOL_GPL(ocelot_cls_flower_replace);
+
+int ocelot_cls_flower_destroy(struct ocelot *ocelot, int port,
+ struct flow_cls_offload *f, bool ingress)
+{
+ struct ocelot_vcap_filter *filter;
+ struct ocelot_vcap_block *block;
+ int block_id;
+
+ block_id = ocelot_chain_to_block(f->common.chain_index, ingress);
+ if (block_id < 0)
+ return 0;
+
+ if (block_id == PSFP_BLOCK_ID) {
+ if (ocelot->ops->psfp_filter_del)
+ return ocelot->ops->psfp_filter_del(ocelot, f);
+
+ return -EOPNOTSUPP;
+ }
+
+ block = &ocelot->block[block_id];
+
+ filter = ocelot_vcap_block_find_filter_by_id(block, f->cookie, true);
+ if (!filter)
+ return 0;
+
+ if (filter->type == OCELOT_VCAP_FILTER_DUMMY)
+ return ocelot_vcap_dummy_filter_del(ocelot, filter);
+
+ if (ingress) {
+ filter->ingress_port_mask &= ~BIT(port);
+ if (filter->ingress_port_mask)
+ return ocelot_vcap_filter_replace(ocelot, filter);
+ }
+
+ return ocelot_vcap_filter_del(ocelot, filter);
+}
+EXPORT_SYMBOL_GPL(ocelot_cls_flower_destroy);
+
+int ocelot_cls_flower_stats(struct ocelot *ocelot, int port,
+ struct flow_cls_offload *f, bool ingress)
+{
+ struct ocelot_vcap_filter *filter;
+ struct ocelot_vcap_block *block;
+ struct flow_stats stats = {0};
+ int block_id, ret;
+
+ block_id = ocelot_chain_to_block(f->common.chain_index, ingress);
+ if (block_id < 0)
+ return 0;
+
+ if (block_id == PSFP_BLOCK_ID) {
+ if (ocelot->ops->psfp_stats_get) {
+ ret = ocelot->ops->psfp_stats_get(ocelot, f, &stats);
+ if (ret)
+ return ret;
+
+ goto stats_update;
+ }
+
+ return -EOPNOTSUPP;
+ }
+
+ block = &ocelot->block[block_id];
+
+ filter = ocelot_vcap_block_find_filter_by_id(block, f->cookie, true);
+ if (!filter || filter->type == OCELOT_VCAP_FILTER_DUMMY)
+ return 0;
+
+ ret = ocelot_vcap_filter_stats_update(ocelot, filter);
+ if (ret)
+ return ret;
+
+ stats.pkts = filter->stats.pkts;
+
+stats_update:
+ flow_stats_update(&f->stats, 0x0, stats.pkts, stats.drops, 0x0,
+ FLOW_ACTION_HW_STATS_IMMEDIATE);
+ return 0;
+}
+EXPORT_SYMBOL_GPL(ocelot_cls_flower_stats);