/* * CDDL HEADER START * * The contents of this file are subject to the terms of the * Common Development and Distribution License (the "License"). * You may not use this file except in compliance with the License. * * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE * or http://www.opensolaris.org/os/licensing. * See the License for the specific language governing permissions * and limitations under the License. * * When distributing Covered Code, include this CDDL HEADER in each * file and include the License file at usr/src/OPENSOLARIS.LICENSE. * If applicable, add the following below this CDDL HEADER, with the * fields enclosed by brackets "[]" replaced with your own identifying * information: Portions Copyright [yyyy] [name of copyright owner] * * CDDL HEADER END */ /* * Copyright 2006 Sun Microsystems, Inc. All rights reserved. * Use is subject to license terms. */ #ifndef _SYS_MAC_H #define _SYS_MAC_H #pragma ident "%Z%%M% %I% %E% SMI" #include <sys/types.h> #include <sys/ddi.h> #include <sys/sunddi.h> #include <sys/stream.h> /* * MAC Services Module */ #ifdef __cplusplus extern "C" { #endif /* * MAC Information (text emitted by modinfo(1m)) */ #define MAC_INFO "MAC Services v%I%" /* * MAC version identifier. This is used by mac_alloc() mac_register() to * verify that incompatible drivers don't register. */ #define MAC_VERSION 0x1 /* * MAC-Type version identifier. This is used by mactype_alloc() and * mactype_register() to verify that incompatible MAC-Type plugins don't * register. */ #define MACTYPE_VERSION 0x1 /* * Statistics */ #define XCVR_UNDEFINED 0 #define XCVR_NONE 1 #define XCVR_10 2 #define XCVR_100T4 3 #define XCVR_100X 4 #define XCVR_100T2 5 #define XCVR_1000X 6 #define XCVR_1000T 7 typedef enum { LINK_STATE_UNKNOWN = -1, LINK_STATE_DOWN, LINK_STATE_UP } link_state_t; typedef enum { LINK_DUPLEX_UNKNOWN = 0, LINK_DUPLEX_HALF, LINK_DUPLEX_FULL } link_duplex_t; #ifdef _KERNEL typedef struct mac_stat_info_s { uint_t msi_stat; char *msi_name; uint_t msi_type; /* as defined in kstat_named_init(9F) */ uint64_t msi_default; } mac_stat_info_t; /* * There are three ranges of statistics values. 0 to 1 - MAC_STAT_MIN are * interface statistics maintained by the mac module. MAC_STAT_MIN to 1 - * MACTYPE_STAT_MIN are common MAC statistics defined by the mac module and * maintained by each driver. MACTYPE_STAT_MIN and above are statistics * defined by MAC-Type plugins and maintained by each driver. */ #define MAC_STAT_MIN 1000 #define MACTYPE_STAT_MIN 2000 #define IS_MAC_STAT(stat) \ (stat >= MAC_STAT_MIN && stat < MACTYPE_STAT_MIN) #define IS_MACTYPE_STAT(stat) (stat >= MACTYPE_STAT_MIN) enum mac_driver_stat { /* MIB-II stats (RFC 1213 and RFC 1573) */ MAC_STAT_IFSPEED = MAC_STAT_MIN, MAC_STAT_MULTIRCV, MAC_STAT_BRDCSTRCV, MAC_STAT_MULTIXMT, MAC_STAT_BRDCSTXMT, MAC_STAT_NORCVBUF, MAC_STAT_IERRORS, MAC_STAT_UNKNOWNS, MAC_STAT_NOXMTBUF, MAC_STAT_OERRORS, MAC_STAT_COLLISIONS, MAC_STAT_RBYTES, MAC_STAT_IPACKETS, MAC_STAT_OBYTES, MAC_STAT_OPACKETS }; #define MAC_NSTAT (MAC_STAT_OPACKETS - MAC_STAT_IFSPEED + 1) #define MAC_STAT_ISACOUNTER(_stat) ( \ (_stat) == MAC_STAT_MULTIRCV || \ (_stat) == MAC_STAT_BRDCSTRCV || \ (_stat) == MAC_STAT_MULTIXMT || \ (_stat) == MAC_STAT_BRDCSTXMT || \ (_stat) == MAC_STAT_NORCVBUF || \ (_stat) == MAC_STAT_IERRORS || \ (_stat) == MAC_STAT_UNKNOWNS || \ (_stat) == MAC_STAT_NOXMTBUF || \ (_stat) == MAC_STAT_OERRORS || \ (_stat) == MAC_STAT_COLLISIONS || \ (_stat) == MAC_STAT_RBYTES || \ (_stat) == MAC_STAT_IPACKETS || \ (_stat) == MAC_STAT_OBYTES || \ (_stat) == MAC_STAT_OPACKETS) /* * Maximum MAC address length */ #define MAXMACADDRLEN 20 /* * Immutable information. (This may not be modified after registration). */ typedef struct mac_info_s { uint_t mi_media; uint_t mi_nativemedia; uint_t mi_sdu_min; uint_t mi_sdu_max; uint_t mi_addr_length; uint8_t *mi_unicst_addr; uint8_t *mi_brdcst_addr; } mac_info_t; /* * LSO capability */ typedef struct lso_basic_tcp_ipv4_s { t_uscalar_t lso_max; /* maximum payload */ } lso_basic_tcp_ipv4_t; /* * Future LSO capabilities can be added at the end of the mac_capab_lso_t. * When such capability is added to the GLDv3 framework, the size of the * mac_capab_lso_t it allocates and passes to the drivers increases. Older * drivers wil access only the (upper) sections of that structure, that is the * sections carrying the capabilities they understand. This ensures the * interface can be safely extended in a binary compatible way. */ typedef struct mac_capab_lso_s { t_uscalar_t lso_flags; lso_basic_tcp_ipv4_t lso_basic_tcp_ipv4; /* Add future lso capabilities here */ } mac_capab_lso_t; /* * MAC layer capabilities. These capabilities are handled by the drivers' * mc_capab_get() callbacks. Some capabilities require the driver to fill * in a given data structure, and others are simply boolean capabilities. * Note that capability values must be powers of 2 so that consumers and * providers of this interface can keep track of which capabilities they * care about by keeping a bitfield of these things around somewhere. */ typedef enum { MAC_CAPAB_HCKSUM = 0x01, /* data is a uint32_t for the txflags */ MAC_CAPAB_POLL = 0x02, /* boolean only, no data */ MAC_CAPAB_MULTIADDRESS = 0x04, /* data is multiaddress_capab_t */ MAC_CAPAB_LSO = 0x08 /* data is mac_capab_lso_t */ /* add new capabilities here */ } mac_capab_t; typedef int mac_addr_slot_t; /* mma_flags values */ #define MMAC_SLOT_USED 0x1 /* address slot used */ #define MMAC_SLOT_UNUSED 0x2 /* free address slot */ #define MMAC_VENDOR_ADDR 0x4 /* address returned is vendor supplied */ typedef struct mac_multi_address_s { mac_addr_slot_t mma_slot; /* slot for add/remove/get/set */ uint_t mma_addrlen; uint8_t mma_addr[MAXMACADDRLEN]; uint_t mma_flags; } mac_multi_addr_t; typedef int (*maddr_reserve_t)(void *, mac_multi_addr_t *); typedef int (*maddr_add_t)(void *, mac_multi_addr_t *); typedef int (*maddr_remove_t)(void *, mac_addr_slot_t); typedef int (*maddr_modify_t)(void *, mac_multi_addr_t *); typedef int (*maddr_get_t)(void *, mac_multi_addr_t *); /* maddr_flag values */ #define MADDR_VENDOR_ADDR 0x01 /* addr returned is vendor supplied */ /* multiple mac address: add/remove/set/get mac address */ typedef struct multiaddress_capab_s { int maddr_naddr; /* total addresses */ int maddr_naddrfree; /* free address slots */ uint_t maddr_flag; /* MADDR_VENDOR_ADDR bit can be set */ /* driver entry points */ void *maddr_handle; /* cookie to be used for the calls */ maddr_reserve_t maddr_reserve; /* reserve a factory address */ maddr_add_t maddr_add; /* add a new unicst address */ maddr_remove_t maddr_remove; /* remove an added address */ maddr_modify_t maddr_modify; /* modify an added address */ maddr_get_t maddr_get; /* get address from specified slot */ } multiaddress_capab_t; /* * MAC driver entry point types. */ typedef int (*mac_getstat_t)(void *, uint_t, uint64_t *); typedef int (*mac_start_t)(void *); typedef void (*mac_stop_t)(void *); typedef int (*mac_setpromisc_t)(void *, boolean_t); typedef int (*mac_multicst_t)(void *, boolean_t, const uint8_t *); typedef int (*mac_unicst_t)(void *, const uint8_t *); typedef void (*mac_ioctl_t)(void *, queue_t *, mblk_t *); typedef void (*mac_resources_t)(void *); typedef mblk_t *(*mac_tx_t)(void *, mblk_t *); typedef boolean_t (*mac_getcapab_t)(void *, mac_capab_t, void *); /* * Drivers must set all of these callbacks except for mc_resources, * mc_ioctl, and mc_getcapab, which are optional. If any of these optional * callbacks are set, their appropriate flags must be set in mc_callbacks. * Any future additions to this list must also be accompanied by an * associated mc_callbacks flag so that the framework can grow without * affecting the binary compatibility of the interface. */ typedef struct mac_callbacks_s { uint_t mc_callbacks; /* Denotes which callbacks are set */ mac_getstat_t mc_getstat; /* Get the value of a statistic */ mac_start_t mc_start; /* Start the device */ mac_stop_t mc_stop; /* Stop the device */ mac_setpromisc_t mc_setpromisc; /* Enable or disable promiscuous mode */ mac_multicst_t mc_multicst; /* Enable or disable a multicast addr */ mac_unicst_t mc_unicst; /* Set the unicast MAC address */ mac_tx_t mc_tx; /* Transmit a packet */ mac_resources_t mc_resources; /* Get the device resources */ mac_ioctl_t mc_ioctl; /* Process an unknown ioctl */ mac_getcapab_t mc_getcapab; /* Get capability information */ } mac_callbacks_t; /* * Flags for mc_callbacks. Requiring drivers to set the flags associated * with optional callbacks initialized in the structure allows the mac * module to add optional callbacks in the future without requiring drivers * to recompile. */ #define MC_RESOURCES 0x001 #define MC_IOCTL 0x002 #define MC_GETCAPAB 0x004 typedef struct mac_register_s { uint_t m_version; /* set by mac_alloc() */ const char *m_type_ident; void *m_driver; /* Driver private data */ dev_info_t *m_dip; uint_t m_instance; uint8_t *m_src_addr; uint8_t *m_dst_addr; mac_callbacks_t *m_callbacks; uint_t m_min_sdu; uint_t m_max_sdu; void *m_pdata; size_t m_pdata_size; } mac_register_t; /* * Opaque handle types. */ typedef struct mac_t *mac_handle_t; typedef struct __mac_notify_handle *mac_notify_handle_t; typedef struct __mac_rx_handle *mac_rx_handle_t; typedef struct __mac_txloop_handle *mac_txloop_handle_t; typedef struct __mac_resource_handle *mac_resource_handle_t; /* * MAC interface callback types. */ typedef enum { MAC_NOTE_LINK, MAC_NOTE_PROMISC, MAC_NOTE_UNICST, MAC_NOTE_TX, MAC_NOTE_RESOURCE, MAC_NOTE_DEVPROMISC, MAC_NOTE_FASTPATH_FLUSH, MAC_NNOTE /* must be the last entry */ } mac_notify_type_t; typedef void (*mac_notify_t)(void *, mac_notify_type_t); typedef void (*mac_rx_t)(void *, mac_resource_handle_t, mblk_t *); typedef void (*mac_txloop_t)(void *, mblk_t *); typedef void (*mac_blank_t)(void *, time_t, uint_t); /* * MAC promiscuous types */ typedef enum { MAC_PROMISC = 0x01, /* MAC instance is promiscuous */ MAC_DEVPROMISC = 0x02 /* Device is promiscuous */ } mac_promisc_type_t; /* * MAC resource types */ typedef enum { MAC_RX_FIFO = 1 } mac_resource_type_t; typedef struct mac_rx_fifo_s { mac_resource_type_t mrf_type; /* MAC_RX_FIFO */ mac_blank_t mrf_blank; void *mrf_arg; time_t mrf_normal_blank_time; uint_t mrf_normal_pkt_count; } mac_rx_fifo_t; typedef struct mac_txinfo_s { mac_tx_t mt_fn; void *mt_arg; } mac_txinfo_t; typedef union mac_resource_u { mac_resource_type_t mr_type; mac_rx_fifo_t mr_fifo; } mac_resource_t; typedef mac_resource_handle_t (*mac_resource_add_t)(void *, mac_resource_t *); typedef enum { MAC_ADDRTYPE_UNICAST, MAC_ADDRTYPE_MULTICAST, MAC_ADDRTYPE_BROADCAST } mac_addrtype_t; typedef struct mac_header_info_s { size_t mhi_hdrsize; size_t mhi_pktsize; const uint8_t *mhi_daddr; const uint8_t *mhi_saddr; uint32_t mhi_origsap; uint32_t mhi_bindsap; mac_addrtype_t mhi_dsttype; boolean_t mhi_istagged; uint16_t mhi_tci; } mac_header_info_t; /* * MAC-Type plugin interfaces */ typedef int (*mtops_addr_verify_t)(const void *, void *); typedef boolean_t (*mtops_sap_verify_t)(uint32_t, uint32_t *, void *); typedef mblk_t *(*mtops_header_t)(const void *, const void *, uint32_t, void *, mblk_t *, size_t); typedef int (*mtops_header_info_t)(mblk_t *, void *, mac_header_info_t *); typedef boolean_t (*mtops_pdata_verify_t)(void *, size_t); typedef mblk_t *(*mtops_header_modify_t)(mblk_t *, void *); typedef struct mactype_ops_s { uint_t mtops_ops; /* * mtops_unicst_verify() returns 0 if the given address is a valid * unicast address, or a non-zero errno otherwise. */ mtops_addr_verify_t mtops_unicst_verify; /* * mtops_multicst_verify() returns 0 if the given address is a * valid multicast address, or a non-zero errno otherwise. If the * media doesn't support multicast, ENOTSUP should be returned (for * example). */ mtops_addr_verify_t mtops_multicst_verify; /* * mtops_sap_verify() returns B_TRUE if the given SAP is a valid * SAP value, or B_FALSE otherwise. */ mtops_sap_verify_t mtops_sap_verify; /* * mtops_header() is used to allocate and construct a MAC header. */ mtops_header_t mtops_header; /* * mtops_header_info() is used to gather information on a given MAC * header. */ mtops_header_info_t mtops_header_info; /* * mtops_pdata_verify() is used to verify the validity of MAC * plugin data. It is called by mac_register() if the driver has * supplied MAC plugin data, and also by mac_pdata_update() when * drivers update the data. */ mtops_pdata_verify_t mtops_pdata_verify; /* * mtops_header_cook() is an optional callback that converts (or * "cooks") the given raw header (as sent by a raw DLPI consumer) * into one that is appropriate to send down to the MAC driver. * Following the example above, an Ethernet header sent down by a * DLPI consumer would be converted to whatever header the MAC * driver expects. */ mtops_header_modify_t mtops_header_cook; /* * mtops_header_uncook() is an optional callback that does the * opposite of mtops_header_cook(). It "uncooks" a given MAC * header (as received from the driver) for consumption by raw DLPI * consumers. For example, for a non-Ethernet plugin that wants * raw DLPI consumers to be fooled into thinking that the device * provides Ethernet access, this callback would modify the given * mblk_t such that the MAC header is converted to an Ethernet * header. */ mtops_header_modify_t mtops_header_uncook; } mactype_ops_t; /* * mtops_ops exists for the plugin to enumerate the optional callback * entrypoints it has defined. This allows the mac module to define * additional plugin entrypoints in mactype_ops_t without breaking backward * compatibility with old plugins. */ #define MTOPS_PDATA_VERIFY 0x001 #define MTOPS_HEADER_COOK 0x002 #define MTOPS_HEADER_UNCOOK 0x004 typedef struct mactype_register_s { uint_t mtr_version; /* set by mactype_alloc() */ const char *mtr_ident; mactype_ops_t *mtr_ops; uint_t mtr_mactype; uint_t mtr_nativetype; uint_t mtr_addrlen; uint8_t *mtr_brdcst_addr; mac_stat_info_t *mtr_stats; size_t mtr_statcount; } mactype_register_t; /* * Client interface functions. */ extern int mac_open(const char *, uint_t, mac_handle_t *); extern void mac_close(mac_handle_t); extern const mac_info_t *mac_info(mac_handle_t); extern boolean_t mac_info_get(const char *, mac_info_t *); extern uint64_t mac_stat_get(mac_handle_t, uint_t); extern int mac_start(mac_handle_t); extern void mac_stop(mac_handle_t); extern int mac_promisc_set(mac_handle_t, boolean_t, mac_promisc_type_t); extern boolean_t mac_promisc_get(mac_handle_t, mac_promisc_type_t); extern int mac_multicst_add(mac_handle_t, const uint8_t *); extern int mac_multicst_remove(mac_handle_t, const uint8_t *); extern boolean_t mac_unicst_verify(mac_handle_t, const uint8_t *, uint_t); extern int mac_unicst_set(mac_handle_t, const uint8_t *); extern void mac_unicst_get(mac_handle_t, uint8_t *); extern void mac_dest_get(mac_handle_t, uint8_t *); extern void mac_resources(mac_handle_t); extern void mac_ioctl(mac_handle_t, queue_t *, mblk_t *); extern const mac_txinfo_t *mac_tx_get(mac_handle_t); extern link_state_t mac_link_get(mac_handle_t); extern mac_notify_handle_t mac_notify_add(mac_handle_t, mac_notify_t, void *); extern void mac_notify_remove(mac_handle_t, mac_notify_handle_t); extern void mac_notify(mac_handle_t); extern mac_rx_handle_t mac_rx_add(mac_handle_t, mac_rx_t, void *); extern void mac_rx_remove(mac_handle_t, mac_rx_handle_t); extern mblk_t *mac_txloop(void *, mblk_t *); extern mac_txloop_handle_t mac_txloop_add(mac_handle_t, mac_txloop_t, void *); extern void mac_txloop_remove(mac_handle_t, mac_txloop_handle_t); extern boolean_t mac_active_set(mac_handle_t); extern void mac_active_clear(mac_handle_t); extern void mac_resource_set(mac_handle_t, mac_resource_add_t, void *); extern dev_info_t *mac_devinfo_get(mac_handle_t); extern boolean_t mac_capab_get(mac_handle_t, mac_capab_t, void *); extern boolean_t mac_sap_verify(mac_handle_t, uint32_t, uint32_t *); extern mblk_t *mac_header(mac_handle_t, const uint8_t *, uint32_t, mblk_t *, size_t); extern int mac_header_info(mac_handle_t, mblk_t *, mac_header_info_t *); extern mblk_t *mac_header_cook(mac_handle_t, mblk_t *); extern mblk_t *mac_header_uncook(mac_handle_t, mblk_t *); /* * Driver interface functions. */ extern mac_register_t *mac_alloc(uint_t); extern void mac_free(mac_register_t *); extern int mac_register(mac_register_t *, mac_handle_t *); extern int mac_unregister(mac_handle_t); extern void mac_rx(mac_handle_t, mac_resource_handle_t, mblk_t *); extern void mac_link_update(mac_handle_t, link_state_t); extern void mac_unicst_update(mac_handle_t, const uint8_t *); extern void mac_tx_update(mac_handle_t); extern void mac_resource_update(mac_handle_t); extern mac_resource_handle_t mac_resource_add(mac_handle_t, mac_resource_t *); extern int mac_pdata_update(mac_handle_t, void *, size_t); extern void mac_multicst_refresh(mac_handle_t, mac_multicst_t, void *, boolean_t); extern void mac_unicst_refresh(mac_handle_t, mac_unicst_t, void *); extern void mac_promisc_refresh(mac_handle_t, mac_setpromisc_t, void *); extern void mac_init_ops(struct dev_ops *, const char *); extern void mac_fini_ops(struct dev_ops *); extern mactype_register_t *mactype_alloc(uint_t); extern void mactype_free(mactype_register_t *); extern int mactype_register(mactype_register_t *); extern int mactype_unregister(const char *); #endif /* _KERNEL */ #ifdef __cplusplus } #endif #endif /* _SYS_MAC_H */