diff options
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/microchip/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/Kconfig | 1 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/Makefile | 8 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_main.c | 9 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_main.h | 6 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c | 41 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/vcap/Kconfig | 39 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/vcap/vcap_ag_api.h | 326 | ||||
| -rw-r--r-- | drivers/net/ethernet/microchip/vcap/vcap_api.h | 269 |
9 files changed, 698 insertions, 2 deletions
diff --git a/drivers/net/ethernet/microchip/Kconfig b/drivers/net/ethernet/microchip/Kconfig index ed7a35c3ceac..24c994baad13 100644 --- a/drivers/net/ethernet/microchip/Kconfig +++ b/drivers/net/ethernet/microchip/Kconfig @@ -57,5 +57,6 @@ config LAN743X source "drivers/net/ethernet/microchip/lan966x/Kconfig" source "drivers/net/ethernet/microchip/sparx5/Kconfig" +source "drivers/net/ethernet/microchip/vcap/Kconfig" endif # NET_VENDOR_MICROCHIP diff --git a/drivers/net/ethernet/microchip/sparx5/Kconfig b/drivers/net/ethernet/microchip/sparx5/Kconfig index cc5e48e1bb4c..98e27530a91f 100644 --- a/drivers/net/ethernet/microchip/sparx5/Kconfig +++ b/drivers/net/ethernet/microchip/sparx5/Kconfig @@ -9,5 +9,6 @@ config SPARX5_SWITCH select PHYLINK select PHY_SPARX5_SERDES select RESET_CONTROLLER + select VCAP help This driver supports the Sparx5 network switch device. diff --git a/drivers/net/ethernet/microchip/sparx5/Makefile b/drivers/net/ethernet/microchip/sparx5/Makefile index d1c6ad966747..aa4dadb8a25d 100644 --- a/drivers/net/ethernet/microchip/sparx5/Makefile +++ b/drivers/net/ethernet/microchip/sparx5/Makefile @@ -5,7 +5,11 @@ obj-$(CONFIG_SPARX5_SWITCH) += sparx5-switch.o -sparx5-switch-objs := sparx5_main.o sparx5_packet.o \ +sparx5-switch-y := sparx5_main.o sparx5_packet.o \ sparx5_netdev.o sparx5_phylink.o sparx5_port.o sparx5_mactable.o sparx5_vlan.o \ sparx5_switchdev.o sparx5_calendar.o sparx5_ethtool.o sparx5_fdma.o \ - sparx5_ptp.o sparx5_pgid.o sparx5_tc.o sparx5_qos.o + sparx5_ptp.o sparx5_pgid.o sparx5_tc.o sparx5_qos.o \ + sparx5_vcap_impl.o + +# Provide include files +ccflags-y += -I$(srctree)/drivers/net/ethernet/microchip/vcap diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c index 62a325e96345..0b70c00c6eaa 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.c +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.c @@ -672,6 +672,14 @@ static int sparx5_start(struct sparx5 *sparx5) sparx5_board_init(sparx5); err = sparx5_register_notifier_blocks(sparx5); + if (err) + return err; + + err = sparx5_vcap_init(sparx5); + if (err) { + sparx5_unregister_notifier_blocks(sparx5); + return err; + } /* Start Frame DMA with fallback to register based INJ/XTR */ err = -ENXIO; @@ -906,6 +914,7 @@ static int mchp_sparx5_remove(struct platform_device *pdev) sparx5_ptp_deinit(sparx5); sparx5_fdma_stop(sparx5); sparx5_cleanup_ports(sparx5); + sparx5_vcap_destroy(sparx5); /* Unregister netdevs */ sparx5_unregister_notifier_blocks(sparx5); diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h index 7a83222caa73..2ab22a7b799e 100644 --- a/drivers/net/ethernet/microchip/sparx5/sparx5_main.h +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_main.h @@ -288,6 +288,8 @@ struct sparx5 { struct mutex ptp_lock; /* lock for ptp interface state */ u16 ptp_skbs; int ptp_irq; + /* VCAP */ + struct vcap_control *vcap_ctrl; /* PGID allocation map */ u8 pgid_map[PGID_TABLE_SIZE]; }; @@ -382,6 +384,10 @@ void sparx5_ptp_txtstamp_release(struct sparx5_port *port, struct sk_buff *skb); irqreturn_t sparx5_ptp_irq_handler(int irq, void *args); +/* sparx5_vcap_impl.c */ +int sparx5_vcap_init(struct sparx5 *sparx5); +void sparx5_vcap_destroy(struct sparx5 *sparx5); + /* sparx5_pgid.c */ enum sparx5_pgid_type { SPX5_PGID_FREE, diff --git a/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c b/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c new file mode 100644 index 000000000000..8df7cba77a28 --- /dev/null +++ b/drivers/net/ethernet/microchip/sparx5/sparx5_vcap_impl.c @@ -0,0 +1,41 @@ +// SPDX-License-Identifier: GPL-2.0+ +/* Microchip Sparx5 Switch driver VCAP implementation + * + * Copyright (c) 2022 Microchip Technology Inc. and its subsidiaries. + * + * The Sparx5 Chip Register Model can be browsed at this location: + * https://github.com/microchip-ung/sparx-5_reginfo + */ + +#include <linux/types.h> +#include <linux/list.h> + +#include "vcap_api.h" +#include "sparx5_main_regs.h" +#include "sparx5_main.h" + +/* Allocate a vcap control and vcap instances and configure the system */ +int sparx5_vcap_init(struct sparx5 *sparx5) +{ + struct vcap_control *ctrl; + + /* Create a VCAP control instance that owns the platform specific VCAP + * model with VCAP instances and information about keysets, keys, + * actionsets and actions + */ + ctrl = kzalloc(sizeof(*ctrl), GFP_KERNEL); + if (!ctrl) + return -ENOMEM; + + sparx5->vcap_ctrl = ctrl; + + return 0; +} + +void sparx5_vcap_destroy(struct sparx5 *sparx5) +{ + if (!sparx5->vcap_ctrl) + return; + + kfree(sparx5->vcap_ctrl); +} diff --git a/drivers/net/ethernet/microchip/vcap/Kconfig b/drivers/net/ethernet/microchip/vcap/Kconfig new file mode 100644 index 000000000000..a78cbc6ce6bb --- /dev/null +++ b/drivers/net/ethernet/microchip/vcap/Kconfig @@ -0,0 +1,39 @@ +# SPDX-License-Identifier: GPL-2.0-only +# +# Microchip VCAP API configuration +# + +if NET_VENDOR_MICROCHIP + +config VCAP + bool "VCAP (Versatile Content-Aware Processor) library" + help + Provides the basic VCAP functionality for multiple Microchip switchcores + + A VCAP is essentially a TCAM with rules consisting of + + - Programmable key fields + - Programmable action fields + - A counter (which may be only one bit wide) + + Besides this each VCAP has: + + - A number of lookups + - A keyset configuration per port per lookup + + The VCAP implementation provides switchcore independent handling of rules + and supports: + + - Creating and deleting rules + - Updating and getting rules + + The platform specific configuration as well as the platform specific model + of the VCAP instances are attached to the VCAP API and a client can then + access rules via the API in a platform independent way, with the + limitations that each VCAP has in terms of its supported keys and actions. + + Different switchcores will have different VCAP instances with different + characteristics. Look in the datasheet for the VCAP specifications for the + specific switchcore. + +endif # NET_VENDOR_MICROCHIP diff --git a/drivers/net/ethernet/microchip/vcap/vcap_ag_api.h b/drivers/net/ethernet/microchip/vcap/vcap_ag_api.h new file mode 100644 index 000000000000..804d57b9b60a --- /dev/null +++ b/drivers/net/ethernet/microchip/vcap/vcap_ag_api.h @@ -0,0 +1,326 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries. + * Microchip VCAP API + */ + +/* This file is autogenerated by cml-utils 2022-10-13 10:04:41 +0200. + * Commit ID: fd7cafd175899f0672c73afb3a30fc872500ae86 + */ + +#ifndef __VCAP_AG_API__ +#define __VCAP_AG_API__ + +enum vcap_type { + VCAP_TYPE_IS2, + VCAP_TYPE_MAX +}; + +/* Keyfieldset names with origin information */ +enum vcap_keyfield_set { + VCAP_KFS_NO_VALUE, /* initial value */ + VCAP_KFS_ARP, /* sparx5 is2 X6 */ + VCAP_KFS_IP4_OTHER, /* sparx5 is2 X6 */ + VCAP_KFS_IP4_TCP_UDP, /* sparx5 is2 X6 */ + VCAP_KFS_IP6_STD, /* sparx5 is2 X6 */ + VCAP_KFS_IP_7TUPLE, /* sparx5 is2 X12 */ + VCAP_KFS_MAC_ETYPE, /* sparx5 is2 X6 */ +}; + +/* List of keyfields with description + * + * Keys ending in _IS are booleans derived from frame data + * Keys ending in _CLS are classified frame data + * + * VCAP_KF_8021Q_DEI_CLS: W1, sparx5: is2 + * Classified DEI + * VCAP_KF_8021Q_PCP_CLS: W3, sparx5: is2 + * Classified PCP + * VCAP_KF_8021Q_VID_CLS: W13, sparx5: is2 + * Classified VID + * VCAP_KF_8021Q_VLAN_TAGGED_IS: W1, sparx5: is2 + * Sparx5: Set if frame was received with a VLAN tag, LAN966x: Set if frame has + * one or more Q-tags. Independent of port VLAN awareness + * VCAP_KF_ARP_ADDR_SPACE_OK_IS: W1, sparx5: is2 + * Set if hardware address is Ethernet + * VCAP_KF_ARP_LEN_OK_IS: W1, sparx5: is2 + * Set if hardware address length = 6 (Ethernet) and IP address length = 4 (IP). + * VCAP_KF_ARP_OPCODE: W2, sparx5: is2 + * ARP opcode + * VCAP_KF_ARP_OPCODE_UNKNOWN_IS: W1, sparx5: is2 + * Set if not one of the codes defined in VCAP_KF_ARP_OPCODE + * VCAP_KF_ARP_PROTO_SPACE_OK_IS: W1, sparx5: is2 + * Set if protocol address space is 0x0800 + * VCAP_KF_ARP_SENDER_MATCH_IS: W1, sparx5: is2 + * Sender Hardware Address = SMAC (ARP) + * VCAP_KF_ARP_TGT_MATCH_IS: W1, sparx5: is2 + * Target Hardware Address = SMAC (RARP) + * VCAP_KF_ETYPE: W16, sparx5: is2 + * Ethernet type + * VCAP_KF_ETYPE_LEN_IS: W1, sparx5: is2 + * Set if frame has EtherType >= 0x600 + * VCAP_KF_IF_IGR_PORT_MASK: sparx5 is2 W32, sparx5 is2 W65 + * Ingress port mask, one bit per port/erleg + * VCAP_KF_IF_IGR_PORT_MASK_L3: W1, sparx5: is2 + * If set, IF_IGR_PORT_MASK, IF_IGR_PORT_MASK_RNG, and IF_IGR_PORT_MASK_SEL are + * used to specify L3 interfaces + * VCAP_KF_IF_IGR_PORT_MASK_RNG: W4, sparx5: is2 + * Range selector for IF_IGR_PORT_MASK. Specifies which group of 32 ports are + * available in IF_IGR_PORT_MASK + * VCAP_KF_IF_IGR_PORT_MASK_SEL: W2, sparx5: is2 + * Mode selector for IF_IGR_PORT_MASK, applicable when IF_IGR_PORT_MASK_L3 == 0. + * Mapping: 0: DEFAULT 1: LOOPBACK 2: MASQUERADE 3: CPU_VD + * VCAP_KF_IP4_IS: W1, sparx5: is2 + * Set if frame has EtherType = 0x800 and IP version = 4 + * VCAP_KF_ISDX_CLS: W12, sparx5: is2 + * Classified ISDX + * VCAP_KF_ISDX_GT0_IS: W1, sparx5: is2 + * Set if classified ISDX > 0 + * VCAP_KF_L2_BC_IS: W1, sparx5: is2 + * Set if frame’s destination MAC address is the broadcast address + * (FF-FF-FF-FF-FF-FF). + * VCAP_KF_L2_DMAC: W48, sparx5: is2 + * Destination MAC address + * VCAP_KF_L2_FWD_IS: W1, sparx5: is2 + * Set if the frame is allowed to be forwarded to front ports + * VCAP_KF_L2_MC_IS: W1, sparx5: is2 + * Set if frame’s destination MAC address is a multicast address (bit 40 = 1). + * VCAP_KF_L2_PAYLOAD_ETYPE: W64, sparx5: is2 + * Byte 0-7 of L2 payload after Type/Len field and overloading for OAM + * VCAP_KF_L2_SMAC: W48, sparx5: is2 + * Source MAC address + * VCAP_KF_L3_DIP_EQ_SIP_IS: W1, sparx5: is2 + * Set if Src IP matches Dst IP address + * VCAP_KF_L3_DST_IS: W1, sparx5: is2 + * Set if lookup is done for egress router leg + * VCAP_KF_L3_FRAGMENT_TYPE: W2, sparx5: is2 + * L3 Fragmentation type (none, initial, suspicious, valid follow up) + * VCAP_KF_L3_FRAG_INVLD_L4_LEN: W1, sparx5: is2 + * Set if frame's L4 length is less than ANA_CL:COMMON:CLM_FRAGMENT_CFG.L4_MIN_L + * EN + * VCAP_KF_L3_IP4_DIP: W32, sparx5: is2 + * Destination IPv4 Address + * VCAP_KF_L3_IP4_SIP: W32, sparx5: is2 + * Source IPv4 Address + * VCAP_KF_L3_IP6_DIP: W128, sparx5: is2 + * Sparx5: Full IPv6 DIP, LAN966x: Either Full IPv6 DIP or a subset depending on + * frame type + * VCAP_KF_L3_IP6_SIP: W128, sparx5: is2 + * Sparx5: Full IPv6 SIP, LAN966x: Either Full IPv6 SIP or a subset depending on + * frame type + * VCAP_KF_L3_IP_PROTO: W8, sparx5: is2 + * IPv4 frames: IP protocol. IPv6 frames: Next header, same as for IPV4 + * VCAP_KF_L3_OPTIONS_IS: W1, sparx5: is2 + * Set if IPv4 frame contains options (IP len > 5) + * VCAP_KF_L3_PAYLOAD: sparx5 is2 W96, sparx5 is2 W40 + * Sparx5: Payload bytes after IP header. IPv4: IPv4 options are not parsed so + * payload is always taken 20 bytes after the start of the IPv4 header, LAN966x: + * Bytes 0-6 after IP header + * VCAP_KF_L3_RT_IS: W1, sparx5: is2 + * Set if frame has hit a router leg + * VCAP_KF_L3_TOS: W8, sparx5: is2 + * Sparx5: Frame's IPv4/IPv6 DSCP and ECN fields, LAN966x: IP TOS field + * VCAP_KF_L3_TTL_GT0: W1, sparx5: is2 + * Set if IPv4 TTL / IPv6 hop limit is greater than 0 + * VCAP_KF_L4_ACK: W1, sparx5: is2 + * Sparx5 and LAN966x: TCP flag ACK, LAN966x only: PTP over UDP: flagField bit 2 + * (unicastFlag) + * VCAP_KF_L4_DPORT: W16, sparx5: is2 + * Sparx5: TCP/UDP destination port. Overloading for IP_7TUPLE: Non-TCP/UDP IP + * frames: L4_DPORT = L3_IP_PROTO, LAN966x: TCP/UDP destination port + * VCAP_KF_L4_FIN: W1, sparx5: is2 + * TCP flag FIN, LAN966x: TCP flag FIN, and for PTP over UDP: messageType bit 1 + * VCAP_KF_L4_PAYLOAD: W64, sparx5: is2 + * Payload bytes after TCP/UDP header Overloading for IP_7TUPLE: Non TCP/UDP + * frames: Payload bytes 0–7 after IP header. IPv4 options are not parsed so + * payload is always taken 20 bytes after the start of the IPv4 header for non + * TCP/UDP IPv4 frames + * VCAP_KF_L4_PSH: W1, sparx5: is2 + * Sparx5: TCP flag PSH, LAN966x: TCP: TCP flag PSH. PTP over UDP: flagField bit + * 1 (twoStepFlag) + * VCAP_KF_L4_RNG: W16, sparx5: is2 + * Range checker bitmask (one for each range checker). Input into range checkers + * is taken from classified results (VID, DSCP) and frame (SPORT, DPORT, ETYPE, + * outer VID, inner VID) + * VCAP_KF_L4_RST: W1, sparx5: is2 + * Sparx5: TCP flag RST , LAN966x: TCP: TCP flag RST. PTP over UDP: messageType + * bit 3 + * VCAP_KF_L4_SEQUENCE_EQ0_IS: W1, sparx5: is2 + * Set if TCP sequence number is 0, LAN966x: Overlayed with PTP over UDP: + * messageType bit 0 + * VCAP_KF_L4_SPORT: W16, sparx5: is2 + * TCP/UDP source port + * VCAP_KF_L4_SPORT_EQ_DPORT_IS: W1, sparx5: is2 + * Set if UDP or TCP source port equals UDP or TCP destination port + * VCAP_KF_L4_SYN: W1, sparx5: is2 + * Sparx5: TCP flag SYN, LAN966x: TCP: TCP flag SYN. PTP over UDP: messageType + * bit 2 + * VCAP_KF_L4_URG: W1, sparx5: is2 + * Sparx5: TCP flag URG, LAN966x: TCP: TCP flag URG. PTP over UDP: flagField bit + * 7 (reserved) + * VCAP_KF_LOOKUP_FIRST_IS: W1, sparx5: is2 + * Selects between entries relevant for first and second lookup. Set for first + * lookup, cleared for second lookup. + * VCAP_KF_LOOKUP_PAG: W8, sparx5: is2 + * Classified Policy Association Group: chains rules from IS1/CLM to IS2 + * VCAP_KF_OAM_CCM_CNTS_EQ0: W1, sparx5: is2 + * Dual-ended loss measurement counters in CCM frames are all zero + * VCAP_KF_OAM_Y1731_IS: W1, sparx5: is2 + * Set if frame’s EtherType = 0x8902 + * VCAP_KF_TCP_IS: W1, sparx5: is2 + * Set if frame is IPv4 TCP frame (IP protocol = 6) or IPv6 TCP frames (Next + * header = 6) + * VCAP_KF_TCP_UDP_IS: W1, sparx5: is2 + * Set if frame is IPv4/IPv6 TCP or UDP frame (IP protocol/next header equals 6 + * or 17) + * VCAP_KF_TYPE: sparx5 is2 W4, sparx5 is2 W2 + * Keyset type id - set by the API + */ + +/* Keyfield names */ +enum vcap_key_field { + VCAP_KF_NO_VALUE, /* initial value */ + VCAP_KF_8021Q_DEI_CLS, + VCAP_KF_8021Q_PCP_CLS, + VCAP_KF_8021Q_VID_CLS, + VCAP_KF_8021Q_VLAN_TAGGED_IS, + VCAP_KF_ARP_ADDR_SPACE_OK_IS, + VCAP_KF_ARP_LEN_OK_IS, + VCAP_KF_ARP_OPCODE, + VCAP_KF_ARP_OPCODE_UNKNOWN_IS, + VCAP_KF_ARP_PROTO_SPACE_OK_IS, + VCAP_KF_ARP_SENDER_MATCH_IS, + VCAP_KF_ARP_TGT_MATCH_IS, + VCAP_KF_ETYPE, + VCAP_KF_ETYPE_LEN_IS, + VCAP_KF_IF_IGR_PORT_MASK, + VCAP_KF_IF_IGR_PORT_MASK_L3, + VCAP_KF_IF_IGR_PORT_MASK_RNG, + VCAP_KF_IF_IGR_PORT_MASK_SEL, + VCAP_KF_IP4_IS, + VCAP_KF_ISDX_CLS, + VCAP_KF_ISDX_GT0_IS, + VCAP_KF_L2_BC_IS, + VCAP_KF_L2_DMAC, + VCAP_KF_L2_FWD_IS, + VCAP_KF_L2_MC_IS, + VCAP_KF_L2_PAYLOAD_ETYPE, + VCAP_KF_L2_SMAC, + VCAP_KF_L3_DIP_EQ_SIP_IS, + VCAP_KF_L3_DST_IS, + VCAP_KF_L3_FRAGMENT_TYPE, + VCAP_KF_L3_FRAG_INVLD_L4_LEN, + VCAP_KF_L3_IP4_DIP, + VCAP_KF_L3_IP4_SIP, + VCAP_KF_L3_IP6_DIP, + VCAP_KF_L3_IP6_SIP, + VCAP_KF_L3_IP_PROTO, + VCAP_KF_L3_OPTIONS_IS, + VCAP_KF_L3_PAYLOAD, + VCAP_KF_L3_RT_IS, + VCAP_KF_L3_TOS, + VCAP_KF_L3_TTL_GT0, + VCAP_KF_L4_ACK, + VCAP_KF_L4_DPORT, + VCAP_KF_L4_FIN, + VCAP_KF_L4_PAYLOAD, + VCAP_KF_L4_PSH, + VCAP_KF_L4_RNG, + VCAP_KF_L4_RST, + VCAP_KF_L4_SEQUENCE_EQ0_IS, + VCAP_KF_L4_SPORT, + VCAP_KF_L4_SPORT_EQ_DPORT_IS, + VCAP_KF_L4_SYN, + VCAP_KF_L4_URG, + VCAP_KF_LOOKUP_FIRST_IS, + VCAP_KF_LOOKUP_PAG, + VCAP_KF_OAM_CCM_CNTS_EQ0, + VCAP_KF_OAM_Y1731_IS, + VCAP_KF_TCP_IS, + VCAP_KF_TCP_UDP_IS, + VCAP_KF_TYPE, +}; + +/* Actionset names with origin information */ +enum vcap_actionfield_set { + VCAP_AFS_NO_VALUE, /* initial value */ + VCAP_AFS_BASE_TYPE, /* sparx5 is2 X3 */ +}; + +/* List of actionfields with description + * + * VCAP_AF_CNT_ID: W12, sparx5: is2 + * Counter ID, used per lookup to index the 4K frame counters (ANA_ACL:CNT_TBL). + * Multiple VCAP IS2 entries can use the same counter. + * VCAP_AF_CPU_COPY_ENA: W1, sparx5: is2 + * Setting this bit to 1 causes all frames that hit this action to be copied to + * the CPU extraction queue specified in CPU_QUEUE_NUM. + * VCAP_AF_CPU_QUEUE_NUM: W3, sparx5: is2 + * CPU queue number. Used when CPU_COPY_ENA is set. + * VCAP_AF_HIT_ME_ONCE: W1, sparx5: is2 + * Setting this bit to 1 causes the first frame that hits this action where the + * HIT_CNT counter is zero to be copied to the CPU extraction queue specified in + * CPU_QUEUE_NUM. The HIT_CNT counter is then incremented and any frames that + * hit this action later are not copied to the CPU. To re-enable the HIT_ME_ONCE + * functionality, the HIT_CNT counter must be cleared. + * VCAP_AF_IGNORE_PIPELINE_CTRL: W1, sparx5: is2 + * Ignore ingress pipeline control. This enforces the use of the VCAP IS2 action + * even when the pipeline control has terminated the frame before VCAP IS2. + * VCAP_AF_INTR_ENA: W1, sparx5: is2 + * If set, an interrupt is triggered when this rule is hit + * VCAP_AF_LRN_DIS: W1, sparx5: is2 + * Setting this bit to 1 disables learning of frames hitting this action. + * VCAP_AF_MASK_MODE: W3, sparx5: is2 + * Controls the PORT_MASK use. Sparx5: 0: OR_DSTMASK, 1: AND_VLANMASK, 2: + * REPLACE_PGID, 3: REPLACE_ALL, 4: REDIR_PGID, 5: OR_PGID_MASK, 6: VSTAX, 7: + * Not applicable. LAN966X: 0: No action, 1: Permit/deny (AND), 2: Policy + * forwarding (DMAC lookup), 3: Redirect. The CPU port is untouched by + * MASK_MODE. + * VCAP_AF_MATCH_ID: W16, sparx5: is2 + * Logical ID for the entry. The MATCH_ID is extracted together with the frame + * if the frame is forwarded to the CPU (CPU_COPY_ENA). The result is placed in + * IFH.CL_RSLT. + * VCAP_AF_MATCH_ID_MASK: W16, sparx5: is2 + * Mask used by MATCH_ID. + * VCAP_AF_MIRROR_PROBE: W2, sparx5: is2 + * Mirroring performed according to configuration of a mirror probe. 0: No + * mirroring. 1: Mirror probe 0. 2: Mirror probe 1. 3: Mirror probe 2 + * VCAP_AF_PIPELINE_FORCE_ENA: W1, sparx5: is2 + * If set, use PIPELINE_PT unconditionally and set PIPELINE_ACT = NONE if + * PIPELINE_PT == NONE. Overrules previous settings of pipeline point. + * VCAP_AF_PIPELINE_PT: W5, sparx5: is2 + * Pipeline point used if PIPELINE_FORCE_ENA is set + * VCAP_AF_POLICE_ENA: W1, sparx5: is2 + * Setting this bit to 1 causes frames that hit this action to be policed by the + * ACL policer specified in POLICE_IDX. Only applies to the first lookup. + * VCAP_AF_POLICE_IDX: W6, sparx5: is2 + * Selects VCAP policer used when policing frames (POLICE_ENA) + * VCAP_AF_PORT_MASK: W68, sparx5: is2 + * Port mask applied to the forwarding decision based on MASK_MODE. + * VCAP_AF_RT_DIS: W1, sparx5: is2 + * If set, routing is disallowed. Only applies when IS_INNER_ACL is 0. See also + * IGR_ACL_ENA, EGR_ACL_ENA, and RLEG_STAT_IDX. + */ + +/* Actionfield names */ +enum vcap_action_field { + VCAP_AF_NO_VALUE, /* initial value */ + VCAP_AF_CNT_ID, + VCAP_AF_CPU_COPY_ENA, + VCAP_AF_CPU_QUEUE_NUM, + VCAP_AF_HIT_ME_ONCE, + VCAP_AF_IGNORE_PIPELINE_CTRL, + VCAP_AF_INTR_ENA, + VCAP_AF_LRN_DIS, + VCAP_AF_MASK_MODE, + VCAP_AF_MATCH_ID, + VCAP_AF_MATCH_ID_MASK, + VCAP_AF_MIRROR_PROBE, + VCAP_AF_PIPELINE_FORCE_ENA, + VCAP_AF_PIPELINE_PT, + VCAP_AF_POLICE_ENA, + VCAP_AF_POLICE_IDX, + VCAP_AF_PORT_MASK, + VCAP_AF_RT_DIS, +}; + +#endif /* __VCAP_AG_API__ */ diff --git a/drivers/net/ethernet/microchip/vcap/vcap_api.h b/drivers/net/ethernet/microchip/vcap/vcap_api.h new file mode 100644 index 000000000000..4444bf67ebec --- /dev/null +++ b/drivers/net/ethernet/microchip/vcap/vcap_api.h @@ -0,0 +1,269 @@ +/* SPDX-License-Identifier: BSD-3-Clause */ +/* Copyright (C) 2022 Microchip Technology Inc. and its subsidiaries. + * Microchip VCAP API + */ + +#ifndef __VCAP_API__ +#define __VCAP_API__ + +#include <linux/types.h> +#include <linux/list.h> +#include <linux/netdevice.h> + +/* Use the generated API model */ +#include "vcap_ag_api.h" + +#define VCAP_CID_LOOKUP_SIZE 100000 /* Chains in a lookup */ +#define VCAP_CID_INGRESS_L0 1000000 /* Ingress Stage 1 Lookup 0 */ +#define VCAP_CID_INGRESS_L1 1100000 /* Ingress Stage 1 Lookup 1 */ +#define VCAP_CID_INGRESS_L2 1200000 /* Ingress Stage 1 Lookup 2 */ +#define VCAP_CID_INGRESS_L3 1300000 /* Ingress Stage 1 Lookup 3 */ +#define VCAP_CID_INGRESS_L4 1400000 /* Ingress Stage 1 Lookup 4 */ +#define VCAP_CID_INGRESS_L5 1500000 /* Ingress Stage 1 Lookup 5 */ + +#define VCAP_CID_PREROUTING_IPV6 3000000 /* Prerouting Stage */ +#define VCAP_CID_PREROUTING 6000000 /* Prerouting Stage */ + +#define VCAP_CID_INGRESS_STAGE2_L0 8000000 /* Ingress Stage 2 Lookup 0 */ +#define VCAP_CID_INGRESS_STAGE2_L1 8100000 /* Ingress Stage 2 Lookup 1 */ +#define VCAP_CID_INGRESS_STAGE2_L2 8200000 /* Ingress Stage 2 Lookup 2 */ +#define VCAP_CID_INGRESS_STAGE2_L3 8300000 /* Ingress Stage 2 Lookup 3 */ + +#define VCAP_CID_EGRESS_L0 10000000 /* Egress Lookup 0 */ +#define VCAP_CID_EGRESS_L1 10100000 /* Egress Lookup 1 */ + +#define VCAP_CID_EGRESS_STAGE2_L0 20000000 /* Egress Stage 2 Lookup 0 */ +#define VCAP_CID_EGRESS_STAGE2_L1 20100000 /* Egress Stage 2 Lookup 1 */ + +/* Known users of the VCAP API */ +enum vcap_user { + VCAP_USER_PTP, + VCAP_USER_MRP, + VCAP_USER_CFM, + VCAP_USER_VLAN, + VCAP_USER_QOS, + VCAP_USER_VCAP_UTIL, + VCAP_USER_TC, + VCAP_USER_TC_EXTRA, + + /* add new users above here */ + + /* used to define VCAP_USER_MAX below */ + __VCAP_USER_AFTER_LAST, + VCAP_USER_MAX = __VCAP_USER_AFTER_LAST - 1, +}; + +/* VCAP information used for displaying data */ +struct vcap_statistics { + char *name; + int count; + const char * const *keyfield_set_names; + const char * const *actionfield_set_names; + const char * const *keyfield_names; + const char * const *actionfield_names; +}; + +/* VCAP key/action field type, position and width */ +struct vcap_field { + u16 type; + u16 width; + u16 offset; +}; + +/* VCAP keyset or actionset type and width */ +struct vcap_set { + u8 type_id; + u8 sw_per_item; + u8 sw_cnt; +}; + +/* VCAP typegroup position and bitvalue */ +struct vcap_typegroup { + u16 offset; + u16 width; + u16 value; +}; + +/* VCAP model data */ +struct vcap_info { + char *name; /* user-friendly name */ + u16 rows; /* number of row in instance */ + u16 sw_count; /* maximum subwords used per rule */ + u16 sw_width; /* bits per subword in a keyset */ + u16 sticky_width; /* sticky bits per rule */ + u16 act_width; /* bits per subword in an actionset */ + u16 default_cnt; /* number of default rules */ + u16 require_cnt_dis; /* not used */ + u16 version; /* vcap rtl version */ + const struct vcap_set *keyfield_set; /* keysets */ + int keyfield_set_size; /* number of keysets */ + const struct vcap_set *actionfield_set; /* actionsets */ + int actionfield_set_size; /* number of actionsets */ + /* map of keys per keyset */ + const struct vcap_field **keyfield_set_map; + /* number of entries in the above map */ + int *keyfield_set_map_size; + /* map of actions per actionset */ + const struct vcap_field **actionfield_set_map; + /* number of entries in the above map */ + int *actionfield_set_map_size; + /* map of keyset typegroups per subword size */ + const struct vcap_typegroup **keyfield_set_typegroups; + /* map of actionset typegroups per subword size */ + const struct vcap_typegroup **actionfield_set_typegroups; +}; + +enum vcap_field_type { + VCAP_FIELD_BIT, + VCAP_FIELD_U32, + VCAP_FIELD_U48, + VCAP_FIELD_U56, + VCAP_FIELD_U64, + VCAP_FIELD_U72, + VCAP_FIELD_U112, + VCAP_FIELD_U128, +}; + +/* VCAP rule data towards the VCAP cache */ +struct vcap_cache_data { + u32 *keystream; + u32 *maskstream; + u32 *actionstream; + u32 counter; + bool sticky; +}; + +/* Selects which part of the rule must be updated */ +enum vcap_selection { + VCAP_SEL_ENTRY = 0x01, + VCAP_SEL_ACTION = 0x02, + VCAP_SEL_COUNTER = 0x04, + VCAP_SEL_ALL = 0xff, +}; + +/* Commands towards the VCAP cache */ +enum vcap_command { + VCAP_CMD_WRITE = 0, + VCAP_CMD_READ = 1, + VCAP_CMD_MOVE_DOWN = 2, + VCAP_CMD_MOVE_UP = 3, + VCAP_CMD_INITIALIZE = 4, +}; + +enum vcap_rule_error { + VCAP_ERR_NONE = 0, /* No known error */ + VCAP_ERR_NO_ADMIN, /* No admin instance */ + VCAP_ERR_NO_NETDEV, /* No netdev instance */ + VCAP_ERR_NO_KEYSET_MATCH, /* No keyset matched the rule keys */ + VCAP_ERR_NO_ACTIONSET_MATCH, /* No actionset matched the rule actions */ + VCAP_ERR_NO_PORT_KEYSET_MATCH, /* No port keyset matched the rule keys */ +}; + +/* Administration of each VCAP instance */ +struct vcap_admin { + struct list_head list; /* for insertion in vcap_control */ + struct list_head rules; /* list of rules */ + enum vcap_type vtype; /* type of vcap */ + int vinst; /* instance number within the same type */ + int first_cid; /* first chain id in this vcap */ + int last_cid; /* last chain id in this vcap */ + int tgt_inst; /* hardware instance number */ + int lookups; /* number of lookups in this vcap type */ + int lookups_per_instance; /* number of lookups in this instance */ + int last_valid_addr; /* top of address range to be used */ + int first_valid_addr; /* bottom of address range to be used */ + int last_used_addr; /* address of lowest added rule */ + bool w32be; /* vcap uses "32bit-word big-endian" encoding */ + struct vcap_cache_data cache; /* encoded rule data */ +}; + +/* Client supplied VCAP rule data */ +struct vcap_rule { + int vcap_chain_id; /* chain used for this rule */ + enum vcap_user user; /* rule owner */ + u16 priority; + u32 id; /* vcap rule id, must be unique, 0 will auto-generate a value */ + u64 cookie; /* used by the client to identify the rule */ + struct list_head keyfields; /* list of vcap_client_keyfield */ + struct list_head actionfields; /* list of vcap_client_actionfield */ + enum vcap_keyfield_set keyset; /* keyset used: may be derived from fields */ + enum vcap_actionfield_set actionset; /* actionset used: may be derived from fields */ + enum vcap_rule_error exterr; /* extended error - used by TC */ + u64 client; /* space for client defined data */ +}; + +/* List of keysets */ +struct vcap_keyset_list { + int max; /* size of the keyset list */ + int cnt; /* count of keysets actually in the list */ + enum vcap_keyfield_set *keysets; /* the list of keysets */ +}; + +/* Client supplied VCAP callback operations */ +struct vcap_operations { + /* validate port keyset operation */ + enum vcap_keyfield_set (*validate_keyset) + (struct net_device *ndev, + struct vcap_admin *admin, + struct vcap_rule *rule, + struct vcap_keyset_list *kslist, + u16 l3_proto); + /* add default rule fields for the selected keyset operations */ + void (*add_default_fields) + (struct net_device *ndev, + struct vcap_admin *admin, + struct vcap_rule *rule); + /* cache operations */ + void (*cache_erase) + (struct vcap_admin *admin); + void (*cache_write) + (struct net_device *ndev, + struct vcap_admin *admin, + enum vcap_selection sel, + u32 idx, u32 count); + void (*cache_read) + (struct net_device *ndev, + struct vcap_admin *admin, + enum vcap_selection sel, + u32 idx, + u32 count); + /* block operations */ + void (*init) + (struct net_device *ndev, + struct vcap_admin *admin, + u32 addr, + u32 count); + void (*update) + (struct net_device *ndev, + struct vcap_admin *admin, + enum vcap_command cmd, + enum vcap_selection sel, + u32 addr); + void (*move) + (struct net_device *ndev, + struct vcap_admin *admin, + u32 addr, + int offset, + int count); + /* informational */ + int (*port_info) + (struct net_device *ndev, + enum vcap_type vtype, + int (*pf)(void *out, int arg, const char *fmt, ...), + void *out, + int arg); +}; + +/* VCAP API Client control interface */ +struct vcap_control { + u32 rule_id; /* last used rule id (unique across VCAP instances) */ + struct vcap_operations *ops; /* client supplied operations */ + const struct vcap_info *vcaps; /* client supplied vcap models */ + const struct vcap_statistics *stats; /* client supplied vcap stats */ + struct list_head list; /* list of vcap instances */ +}; + +/* Set client control interface on the API */ +int vcap_api_set_client(struct vcap_control *vctrl); + +#endif /* __VCAP_API__ */ |