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gems-kernel/source/THIRDPARTY/xnu/bsd/skywalk/nexus/netif/nx_netif.h
Sam Sneed f5727805f2 add darwin/xnu functionality
2024-06-03 11:29:39 -05:00

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/*
* Copyright (c) 2015-2023 Apple Inc. All rights reserved.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_START@
*
* This file contains Original Code and/or Modifications of Original Code
* as defined in and that are subject to the Apple Public Source License
* Version 2.0 (the 'License'). You may not use this file except in
* compliance with the License. The rights granted to you under the License
* may not be used to create, or enable the creation or redistribution of,
* unlawful or unlicensed copies of an Apple operating system, or to
* circumvent, violate, or enable the circumvention or violation of, any
* terms of an Apple operating system software license agreement.
*
* Please obtain a copy of the License at
* http://www.opensource.apple.com/apsl/ and read it before using this file.
*
* The Original Code and all software distributed under the License are
* distributed on an 'AS IS' basis, WITHOUT WARRANTY OF ANY KIND, EITHER
* EXPRESS OR IMPLIED, AND APPLE HEREBY DISCLAIMS ALL SUCH WARRANTIES,
* INCLUDING WITHOUT LIMITATION, ANY WARRANTIES OF MERCHANTABILITY,
* FITNESS FOR A PARTICULAR PURPOSE, QUIET ENJOYMENT OR NON-INFRINGEMENT.
* Please see the License for the specific language governing rights and
* limitations under the License.
*
* @APPLE_OSREFERENCE_LICENSE_HEADER_END@
*/
#ifndef _SKYWALK_NEXUS_NETIF_H_
#define _SKYWALK_NEXUS_NETIF_H_
#include <skywalk/os_skywalk_private.h>
#include <skywalk/nexus/nexus_pktq.h>
#if CONFIG_NEXUS_NETIF
#define NEXUS_PROVIDER_NET_IF "com.apple.nexus.netif"
#define NX_NETIF_MAXPORTS 128
#define NX_NETIF_EVENT_RING_NUM 1 /* number of event rings */
#define NX_NETIF_EVENT_RING_SIZE 32 /* default event ring size */
struct netif_filter {
STAILQ_ENTRY(netif_filter) nf_link;
nexus_port_t nf_port;
uint32_t nf_refcnt;
void *nf_cb_arg;
errno_t (*nf_cb_func)(void *,
struct __kern_packet *, uint32_t);
};
STAILQ_HEAD(netif_filter_head, netif_filter);
struct netif_flow_desc {
uint16_t fd_ethertype;
struct in6_addr fd_laddr;
struct in6_addr fd_raddr;
};
struct netif_port_info {
struct nx_port_info_header npi_hdr;
struct netif_flow_desc npi_fd;
};
struct netif_flow {
SLIST_ENTRY(netif_flow) nf_link;
SLIST_ENTRY(netif_flow) nf_table_link;
nexus_port_t nf_port;
uint32_t nf_refcnt;
struct netif_flow_desc nf_desc;
void *nf_cb_arg;
errno_t (*nf_cb_func)(void *,
void *, uint32_t);
};
typedef enum {
FT_TYPE_ETHERTYPE,
FT_TYPE_IPV6_ULA
} netif_flowtable_type_t;
struct netif_flowtable {
struct netif_flowtable_ops *ft_ops;
void *ft_internal;
};
typedef int netif_flow_lookup_t(struct netif_flowtable *,
struct __kern_packet *, uint32_t, struct netif_flow **);
typedef boolean_t netif_flow_match_t(struct netif_flow_desc *,
struct netif_flow_desc *);
typedef int netif_flow_info_t(struct __kern_packet *,
struct netif_flow_desc *, uint32_t);
typedef int netif_flow_insert_t(struct netif_flowtable *,
struct netif_flow *);
typedef void netif_flow_remove_t(struct netif_flowtable *,
struct netif_flow *);
typedef struct netif_flowtable *netif_flow_table_alloc_t(
struct netif_flowtable_ops *);
typedef void netif_flow_table_free_t(struct netif_flowtable *);
struct netif_flowtable_ops {
netif_flow_lookup_t *nfo_lookup;
netif_flow_match_t *nfo_match;
netif_flow_info_t *nfo_info;
netif_flow_insert_t *nfo_insert;
netif_flow_remove_t *nfo_remove;
netif_flow_table_alloc_t *nfo_table_alloc;
netif_flow_table_free_t *nfo_table_free;
};
SLIST_HEAD(netif_flow_head, netif_flow);
struct nexus_netif_adapter {
/*
* This is an overlay structure on nexus_adapter;
* make sure it contains 'up' as the first member.
*/
struct nexus_adapter nifna_up;
struct nx_netif *nifna_netif;
struct nx_netif_mit *nifna_tx_mit;
struct nx_netif_mit *nifna_rx_mit;
/*
* XXX For filter or vpna only
*/
union {
struct netif_filter *nifna_filter;
struct netif_flow *nifna_flow;
};
uint16_t nifna_gencnt;
};
struct netif_queue {
decl_lck_mtx_data(, nq_lock);
struct netif_qset *nq_qset; /* backpointer to parent netif qset */
struct pktq nq_pktq;
struct netif_qstats nq_stats;
uint64_t nq_accumulated_bytes;
uint64_t nq_accumulated_pkts;
uint64_t nq_accumulate_start; /* in seconds */
void *nq_ctx;
kern_packet_svc_class_t nq_svc; /* service class of TX queue */
uint16_t nq_flags;
}__attribute__((aligned(sizeof(uint64_t))));
/* values for nq_flags */
#define NETIF_QUEUE_EXT_INITED 0x0001 /* nxnpi_queue_init() succeeded */
#define NETIF_QUEUE_IS_RX 0x0002 /* RX queue, else TX */
#define _NETIF_QSET_QUEUE(_p, _n) \
(struct netif_queue *)(void *)((uint8_t *)((_p)->nqs_driver_queues) + \
((_n) * sizeof(struct netif_queue)))
#define NETIF_QSET_RX_QUEUE(_p, _n) _NETIF_QSET_QUEUE(_p, _n)
#define NETIF_QSET_TX_QUEUE(_p, _n) \
_NETIF_QSET_QUEUE(_p, (_p)->nqs_num_rx_queues + (_n))
/* the top 32 bits are unused for now */
#define NETIF_QSET_ID_ENCODE(llink_id_internal, qset_idx) \
((((llink_id_internal) << 16) | (qset_idx)) & 0xffffffff)
struct netif_qset {
struct netif_llink *nqs_llink; /* backpointer to parent logical link */
struct ifclassq *nqs_ifcq;
SLIST_ENTRY(netif_qset) nqs_list;
void *nqs_ctx; /* context provided by driver */
uint64_t nqs_id; /* queue set identifier */
uint8_t nqs_idx; /* queue set index */
uint16_t nqs_flags;
uint8_t nqs_num_rx_queues;
uint8_t nqs_num_tx_queues;
/*
* nq_queues will be organized as:
* nq_queues[0..nq_num_rx_queues-1] will hold RX queues.
* nq_queues[nq_num_rx_queues..nq_num_tx_queues-1] will hold TX queues.
*/
struct netif_queue nqs_driver_queues[0]
__attribute__((aligned(sizeof(uint64_t))));
};
/* values for nqs_flags */
#define NETIF_QSET_FLAG_DEFAULT 0x0001 /* default queue set of the logical link */
#define NETIF_QSET_FLAG_AQM 0x0002 /* provides AQM */
#define NETIF_QSET_FLAG_LOW_LATENCY 0x0004 /* provides low latency service */
#define NETIF_QSET_FLAG_EXT_INITED 0x0008 /* nxnpi_qset_init() succeeded */
#define NETIF_DEFAULT_QSET(_qs) ((_qs)->nqs_flags & NETIF_QSET_FLAG_DEFAULT)
struct netif_llink {
struct nx_netif *nll_nif; /* backpointer to parent netif instance */
STAILQ_ENTRY(netif_llink) nll_link;
SLIST_HEAD(, netif_qset) nll_qset_list;
struct netif_qset *nll_default_qset;
struct ifclassq *nll_ifcq;
struct os_refcnt nll_refcnt;
#define NETIF_LLINK_ID_DEFAULT 0
kern_nexus_netif_llink_id_t nll_link_id;
uint16_t nll_link_id_internal;
uint16_t nll_qset_cnt;
uint8_t nll_state;
uint8_t nll_flags;
void *nll_ctx; /* context provided by driver */
};
STAILQ_HEAD(netif_llink_head, netif_llink);
/* values for nll_flags */
#define NETIF_LLINK_FLAG_DEFAULT 0x1 /* default logical link */
/* values for nll_state */
#define NETIF_LLINK_STATE_INIT 0x1 /* Intialized and ready for use */
#define NETIF_LLINK_STATE_DESTROYED 0x2 /* not available for use */
#define NETIF_DEFAULT_LLINK(_ll) ((_ll)->nll_flags & NETIF_LLINK_FLAG_DEFAULT)
SLIST_HEAD(netif_agent_flow_head, netif_agent_flow);
struct netif_agent_flow {
SLIST_ENTRY(netif_agent_flow) naf_link;
uuid_t naf_flow_uuid;
uuid_t naf_bind_key;
nexus_port_t naf_nx_port;
uint16_t naf_flags;
pid_t naf_pid;
union sockaddr_in_4_6 naf_daddr;
union sockaddr_in_4_6 naf_saddr;
};
#define NIFNA(_na) ((struct nexus_netif_adapter *)(_na))
/* nif_flags */
/*
* This is named differently from the flow classification rule
* (IPV6 ULA) because this gives us the flexibility of using
* different types of classification in the future.
*/
#define NETIF_FLAG_LOW_LATENCY 0x00000001
#define NETIF_FLAG_COMPAT 0x00000002
#define NETIF_FLAG_LLINK_INITIALIZED 0x00000004
#define NETIF_IS_LOW_LATENCY(n) \
(((n)->nif_flags & NETIF_FLAG_LOW_LATENCY) != 0)
#define NETIF_IS_COMPAT(n) \
(((n)->nif_flags & NETIF_FLAG_COMPAT) != 0)
#define NETIF_LLINK_ENABLED(n) \
(((n)->nif_flags & NETIF_FLAG_LLINK_INITIALIZED) != 0)
#define NETIF_DEFAULT_DROP_ENABLED(n) \
(nx_netif_filter_default_drop != 0 && \
(((n)->nif_filter_flags & NETIF_FILTER_FLAG_INITIALIZED) != 0))
/* nif_agent_flags */
#define NETIF_AGENT_FLAG_REGISTERED 0x00000001
#define NETIF_AGENT_FLAG_ADDED 0x00000002
/* nif_filter_flags */
#define NETIF_FILTER_FLAG_INITIALIZED 0x00000001
#define NETIF_FILTER_FLAG_ENABLED 0x00000002
/* nif_flow_flags */
#define NETIF_FLOW_FLAG_INITIALIZED 0x00000001
#define NETIF_FLOW_FLAG_ENABLED 0x00000002
/* nif_llink_flags */
#define NETIF_LLINK_FLAG_INITIALIZED 0x00000001
/* Used by netif_hwna_set_mode() */
typedef enum {
NETIF_MODE_NONE,
NETIF_MODE_FSW,
NETIF_MODE_LLW
} netif_mode_t;
/* nif capabilities */
#define NETIF_CAPAB_INTERFACE_ADVISORY 0x00000001
#define NETIF_CAPAB_QSET_EXTENSIONS 0x00000002
struct netif_qset_extensions {
kern_nexus_capab_qsext_notify_steering_info_fn_t qe_notify_steering_info;
void *qe_prov_ctx;
};
/*
* nx_netif is a descriptor for a netif nexus instance.
*/
struct nx_netif {
decl_lck_rw_data(, nif_lock);
struct kern_nexus *nif_nx;
struct nxbind *nif_dev_nxb;
struct nxbind *nif_host_nxb;
uuid_t nif_uuid; /* attachment UUID */
struct netif_stats nif_stats;
uint32_t nif_flags;
struct os_refcnt nif_refcnt;
decl_lck_mtx_data(, nif_agent_lock);
struct netif_agent_flow_head nif_agent_flow_list;
uint32_t nif_agent_flow_cnt;
uint32_t nif_agent_flags;
netagent_session_t nif_agent_session;
uuid_t nif_agent_uuid;
uint32_t nif_hwassist;
uint32_t nif_capabilities;
uint32_t nif_capenable;
uint64_t nif_input_rate; /* device input rate limit */
struct ifnet *nif_ifp;
struct nx_flowswitch *nif_fsw; /* attached flowswitch nexus */
struct sk_nexusadv *nif_fsw_nxadv; /* flowswitch nexus advisory */
struct netif_nexus_advisory *nif_netif_nxadv; /* netif nexus advisory */
/* packet-mbuf copy routines */
pkt_copy_from_mbuf_t *nif_pkt_copy_from_mbuf;
pkt_copy_to_mbuf_t *nif_pkt_copy_to_mbuf;
pkt_copy_from_pkt_t *nif_pkt_copy_from_pkt;
/* packet filtering */
decl_lck_mtx_data(, nif_filter_lock);
uint32_t nif_filter_flags;
uint32_t nif_filter_vp_cnt;
uint32_t nif_filter_cnt;
struct kern_pbufpool *nif_filter_pp;
struct netif_filter_head nif_filter_list;
union {
struct nx_mbq nif_tx_processed_mbq[MBUF_TC_MAX];
struct nx_pktq nif_tx_processed_pktq[KPKT_TC_MAX];
};
/* virtual port */
decl_lck_mtx_data(, nif_flow_lock);
uint32_t nif_vp_cnt;
uint32_t nif_flow_flags;
uint32_t nif_flow_cnt;
struct netif_flow_head nif_flow_list;
struct netif_flowtable *nif_flow_table;
struct kern_channel *nif_hw_ch;
uint32_t nif_hw_ch_refcnt;
/* logical link */
decl_lck_rw_data(, nif_llink_lock);
struct kern_nexus_netif_llink_init *nif_default_llink_params;
struct netif_llink *nif_default_llink;
STAILQ_HEAD(, netif_llink) nif_llink_list;
uint16_t nif_llink_cnt;
/* capability configuration callback function and context */
uint32_t nif_extended_capabilities;
kern_nexus_capab_interface_advisory_config_fn_t nif_intf_adv_config;
void *nif_intf_adv_prov_ctx;
struct netif_qset_extensions nif_qset_extensions;
#if (DEVELOPMENT || DEBUG)
struct skoid nif_skoid;
#endif /* !DEVELOPMENT && !DEBUG */
};
#define NX_NETIF_PRIVATE(_nx) ((struct nx_netif *)(_nx)->nx_arg)
#define NETIF_RWINIT(_nif) \
lck_rw_init(&(_nif)->nif_lock, &nexus_lock_group, &nexus_lock_attr)
#define NETIF_WLOCK(_nif) \
lck_rw_lock_exclusive(&(_nif)->nif_lock)
#define NETIF_WUNLOCK(_nif) \
lck_rw_unlock_exclusive(&(_nif)->nif_lock)
#define NETIF_WLOCKTORLOCK(_nif) \
lck_rw_lock_exclusive_to_shared(&(_nif)->nif_lock)
#define NETIF_RLOCK(_nif) \
lck_rw_lock_shared(&(_nif)->nif_lock)
#define NETIF_RLOCKTOWLOCK(_nif) \
lck_rw_lock_shared_to_exclusive(&(_nif)->nif_lock)
#define NETIF_RTRYLOCK(_nif) \
lck_rw_try_lock(&(_nif)->nif_lock, LCK_RW_TYPE_SHARED)
#define NETIF_RUNLOCK(_nif) \
lck_rw_unlock_shared(&(_nif)->nif_lock)
#define NETIF_UNLOCK(_nif) \
lck_rw_done(&(_nif)->nif_lock)
#define NETIF_RWDESTROY(_nif) \
lck_rw_destroy(&(_nif)->nif_lock, &nexus_lock_group)
#define NETIF_WLOCK_ASSERT_HELD(_nif) \
LCK_RW_ASSERT(&(_nif)->nif_lock, LCK_RW_ASSERT_EXCLUSIVE)
#define NETIF_RLOCK_ASSERT_HELD(_nif) \
LCK_RW_ASSERT(&(_nif)->nif_lock, LCK_RW_ASSERT_SHARED)
#define NETIF_LOCK_ASSERT_HELD(_nif) \
LCK_RW_ASSERT(&(_nif)->nif_lock, LCK_RW_ASSERT_HELD)
SYSCTL_DECL(_kern_skywalk_netif);
/*
* Macros to determine if an interface is skywalk capable or skywalk enabled.
* See the magic field in struct nexus_adapter.
*/
#define SKYWALK_CAPABLE(ifp) \
(NA(ifp) != NULL && (ifnet_capabilities_supported(ifp) & IFCAP_SKYWALK))
#define SKYWALK_SET_CAPABLE(ifp) do { \
ifnet_lock_exclusive(ifp); \
(ifp)->if_capabilities |= IFCAP_SKYWALK; \
(ifp)->if_capenable |= IFCAP_SKYWALK; \
ifnet_lock_done(ifp); \
} while (0)
#define SKYWALK_CLEAR_CAPABLE(ifp) do { \
ifnet_lock_exclusive(ifp); \
(ifp)->if_capabilities &= ~IFCAP_SKYWALK; \
(ifp)->if_capenable &= ~IFCAP_SKYWALK; \
ifnet_lock_done(ifp); \
} while (0)
#define SKYWALK_NATIVE(ifp) \
((ifp)->if_eflags & IFEF_SKYWALK_NATIVE)
typedef enum {
MIT_MODE_SIMPLE,
MIT_MODE_ADVANCED_STATIC,
MIT_MODE_ADVANCED_DYNAMIC,
} mit_mode_t;
/*
* Mitigation support.
*/
struct mit_cfg_tbl {
uint32_t cfg_plowat; /* packets low watermark */
uint32_t cfg_phiwat; /* packets high watermark */
uint32_t cfg_blowat; /* bytes low watermark */
uint32_t cfg_bhiwat; /* bytes high watermark */
uint32_t cfg_ival; /* delay interval (in microsecond) */
};
#define NETIF_MIT_CFG_TBL_MAX_CFG 5
struct nx_netif_mit {
decl_lck_spin_data(, mit_lock);
volatile struct __kern_channel_ring *mit_ckr; /* kring backpointer */
uint32_t mit_flags;
uint32_t mit_requests;
uint32_t mit_interval;
/*
* Adaptive mitigation.
*/
uint32_t mit_cfg_idx_max; /* highest config selector */
uint32_t mit_cfg_idx; /* current config selector */
const struct mit_cfg_tbl *mit_cfg; /* current config mapping */
mit_mode_t mit_mode; /* current mode */
uint32_t mit_packets_avg; /* average # of packets */
uint32_t mit_packets_min; /* smallest # of packets */
uint32_t mit_packets_max; /* largest # of packets */
uint32_t mit_bytes_avg; /* average # of bytes */
uint32_t mit_bytes_min; /* smallest # of bytes */
uint32_t mit_bytes_max; /* largest # of bytes */
struct pktcntr mit_sstats; /* pkts & bytes per sampling */
struct timespec mit_mode_holdtime; /* mode holdtime in nsec */
struct timespec mit_mode_lasttime; /* last mode change time nsec */
struct timespec mit_sample_time; /* sampling holdtime in nsec */
struct timespec mit_sample_lasttime; /* last sampling time in nsec */
struct timespec mit_start_time; /* time of start work in nsec */
struct thread *mit_thread;
char mit_name[MAXTHREADNAMESIZE];
const struct ifnet *mit_netif_ifp;
/* interface-specific mitigation table */
struct mit_cfg_tbl mit_tbl[NETIF_MIT_CFG_TBL_MAX_CFG];
#if (DEVELOPMENT || DEBUG)
struct skoid mit_skoid;
#endif /* !DEVELOPMENT && !DEBUG */
};
#define NETIF_MITF_INITIALIZED 0x00000001 /* has been initialized */
#define NETIF_MITF_SAMPLING 0x00000002 /* busy sampling stats */
#define NETIF_MITF_SIMPLE 0x00000004 /* no stats, no delay */
#define NETIF_MITF_READY 0x10000000 /* thread is ready */
#define NETIF_MITF_RUNNING 0x20000000 /* thread is running */
#define NETIF_MITF_TERMINATING 0x40000000 /* thread is terminating */
#define NETIF_MITF_TERMINATED 0x80000000 /* thread is terminated */
#define MIT_SPIN_LOCK(_mit) \
lck_spin_lock(&(_mit)->mit_lock)
#define MIT_SPIN_LOCK_ASSERT_HELD(_mit) \
LCK_SPIN_ASSERT(&(_mit)->mit_lock, LCK_ASSERT_OWNED)
#define MIT_SPIN_LOCK_ASSERT_NOTHELD(_mit) \
LCK_SPIN_ASSERT(&(_mit)->mit_lock, LCK_ASSERT_NOTOWNED)
#define MIT_SPIN_UNLOCK(_mit) \
lck_spin_unlock(&(_mit)->mit_lock)
extern kern_allocation_name_t skmem_tag_netif_filter;
extern kern_allocation_name_t skmem_tag_netif_flow;
extern kern_allocation_name_t skmem_tag_netif_agent_flow;
extern kern_allocation_name_t skmem_tag_netif_llink;
extern kern_allocation_name_t skmem_tag_netif_qset;
__BEGIN_DECLS
extern struct nxdom nx_netif_dom_s;
extern struct kern_nexus_domain_provider nx_netif_prov_s;
extern struct nx_netif *nx_netif_alloc(zalloc_flags_t);
extern void nx_netif_free(struct nx_netif *);
extern void nx_netif_retain(struct nx_netif *);
extern void nx_netif_release(struct nx_netif *);
extern int nx_netif_dev_krings_create(struct nexus_adapter *,
struct kern_channel *);
extern void nx_netif_dev_krings_delete(struct nexus_adapter *,
struct kern_channel *, boolean_t);
extern int nx_netif_na_find(struct kern_nexus *, struct kern_channel *,
struct chreq *, struct nxbind *, struct proc *, struct nexus_adapter **,
boolean_t create);
extern int nx_netif_na_special(struct nexus_adapter *,
struct kern_channel *, struct chreq *, nxspec_cmd_t);
extern int nx_netif_na_special_common(struct nexus_adapter *,
struct kern_channel *, struct chreq *, nxspec_cmd_t);
extern int nx_netif_common_intr(struct __kern_channel_ring *, struct proc *,
uint32_t, uint32_t *);
extern int nx_netif_prov_init(struct kern_nexus_domain_provider *);
extern int nx_netif_prov_params(struct kern_nexus_domain_provider *,
const uint32_t, const struct nxprov_params *, struct nxprov_params *,
struct skmem_region_params[SKMEM_REGIONS], uint32_t);
extern int nx_netif_prov_mem_new(struct kern_nexus_domain_provider *,
struct kern_nexus *, struct nexus_adapter *);
extern void nx_netif_prov_fini(struct kern_nexus_domain_provider *);
extern int nx_netif_prov_config(struct kern_nexus_domain_provider *,
struct kern_nexus *, struct nx_cfg_req *, int, struct proc *,
kauth_cred_t);
extern int nx_netif_prov_nx_ctor(struct kern_nexus *);
extern void nx_netif_prov_nx_dtor(struct kern_nexus *);
extern int nx_netif_prov_nx_mem_info(struct kern_nexus *,
struct kern_pbufpool **, struct kern_pbufpool **);
extern size_t nx_netif_prov_nx_mib_get(struct kern_nexus *nx,
struct nexus_mib_filter *, void *, size_t, struct proc *);
extern int nx_netif_prov_nx_stop(struct kern_nexus *);
extern void nx_netif_reap(struct nexus_netif_adapter *, struct ifnet *,
uint32_t, boolean_t);
extern void nx_netif_copy_stats(struct nexus_netif_adapter *,
struct if_netif_stats *);
extern struct nexus_netif_adapter * na_netif_alloc(zalloc_flags_t);
extern void na_netif_free(struct nexus_adapter *);
extern void na_netif_finalize(struct nexus_netif_adapter *, struct ifnet *);
extern void nx_netif_llw_detach_notify(void *);
extern void nx_netif_config_interface_advisory(struct kern_nexus *, bool);
/*
* netif netagent API
*/
extern void nx_netif_agent_init(struct nx_netif *);
extern void nx_netif_agent_fini(struct nx_netif *);
extern int nx_netif_netagent_flow_add(struct nx_netif *, struct nx_flow_req *);
extern int nx_netif_netagent_flow_del(struct nx_netif *, struct nx_flow_req *);
/*
* "Interrupt" mitigation API. This is used by the netif adapter to reduce
* the number of "interrupt" requests/wakeup to clients on incoming packets.
*/
extern void nx_netif_mit_init(struct nx_netif *, const struct ifnet *,
struct nx_netif_mit *, struct __kern_channel_ring *, boolean_t);
extern void nx_netif_mit_cleanup(struct nx_netif_mit *);
extern int nx_netif_mit_tx_intr(struct __kern_channel_ring *, struct proc *,
uint32_t, uint32_t *);
extern int nx_netif_mit_rx_intr(struct __kern_channel_ring *, struct proc *,
uint32_t, uint32_t *);
/*
* Interface filter API
*/
#define NETIF_FILTER_RX 0x0001
#define NETIF_FILTER_TX 0x0002
#define NETIF_FILTER_SOURCE 0x0004
#define NETIF_FILTER_INJECT 0x0008
extern errno_t nx_netif_filter_inject(struct nexus_netif_adapter *,
struct netif_filter *, struct __kern_packet *, uint32_t);
extern errno_t nx_netif_filter_add(struct nx_netif *, nexus_port_t, void *,
errno_t (*)(void *, struct __kern_packet *, uint32_t),
struct netif_filter **);
extern errno_t nx_netif_filter_remove(struct nx_netif *, struct netif_filter *);
extern void nx_netif_filter_init(struct nx_netif *);
extern void nx_netif_filter_fini(struct nx_netif *);
extern void nx_netif_filter_enable(struct nx_netif *);
extern void nx_netif_filter_disable(struct nx_netif *);
/*
* These callbacks are invoked when a packet chain has traversed the full
* filter chain.
*/
extern errno_t nx_netif_filter_rx_cb(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern errno_t nx_netif_filter_tx_cb(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
/*
* These are called by nx_netif_filter_tx_cb() to feed filtered packets
* back to driver.
*/
extern errno_t
nx_netif_filter_tx_processed_mbuf_enqueue(struct nexus_netif_adapter *,
mbuf_svc_class_t, struct mbuf *);
extern errno_t
nx_netif_filter_tx_processed_pkt_enqueue(struct nexus_netif_adapter *,
kern_packet_svc_class_t, struct __kern_packet *);
/*
* Called by nx_netif_na_find() to create a filter nexus adapter.
*/
extern int netif_filter_na_create(struct kern_nexus *, struct chreq *,
struct nexus_adapter **);
/*
* Callbacks from ifnet
*/
extern errno_t nx_netif_native_tx_dequeue(struct nexus_netif_adapter *,
uint32_t, uint32_t, uint32_t, classq_pkt_t *, classq_pkt_t *,
uint32_t *, uint32_t *, boolean_t, errno_t);
extern errno_t nx_netif_native_tx_get_len(struct nexus_netif_adapter *,
uint32_t, uint32_t *, uint32_t *, errno_t);
extern errno_t nx_netif_compat_tx_dequeue(struct nexus_netif_adapter *,
uint32_t, uint32_t, uint32_t, classq_pkt_t *, classq_pkt_t *,
uint32_t *, uint32_t *, boolean_t, errno_t);
extern errno_t nx_netif_compat_tx_get_len(struct nexus_netif_adapter *,
uint32_t, uint32_t *, uint32_t *, errno_t);
/*
* doorbell dequeue tunable
*/
extern uint32_t nx_netif_doorbell_max_dequeue;
/*
* Default drop tunable
*/
extern uint32_t nx_netif_filter_default_drop;
/*
* Flow API
*/
#define NETIF_FLOW_SOURCE 0x0001
#define NETIF_FLOW_INJECT 0x0002
#define NETIF_FLOW_OUTBOUND 0x0004 /* Assumes inbound if flag is missing */
extern errno_t nx_netif_demux(struct nexus_netif_adapter *,
struct __kern_packet *, struct __kern_packet **, uint32_t);
extern errno_t nx_netif_flow_add(struct nx_netif *, nexus_port_t,
struct netif_flow_desc *, void *, errno_t (*)(void *, void *, uint32_t),
struct netif_flow **);
extern errno_t nx_netif_flow_remove(struct nx_netif *, struct netif_flow *);
extern void nx_netif_flow_init(struct nx_netif *);
extern void nx_netif_flow_fini(struct nx_netif *);
extern void nx_netif_flow_enable(struct nx_netif *);
extern void nx_netif_flow_disable(struct nx_netif *);
extern void nx_netif_snoop(struct nx_netif *, struct __kern_packet *,
boolean_t);
extern boolean_t nx_netif_validate_macaddr(struct nx_netif *,
struct __kern_packet *, uint32_t);
extern boolean_t nx_netif_flow_match(struct nx_netif *, struct __kern_packet *,
struct netif_flow *, uint32_t);
extern struct netif_flow * nx_netif_flow_classify(struct nx_netif *,
struct __kern_packet *, uint32_t);
extern void nx_netif_flow_release(struct nx_netif *, struct netif_flow *);
extern int netif_vp_na_create(struct kern_nexus *, struct chreq *,
struct nexus_adapter **);
extern errno_t netif_vp_na_channel_event(struct nx_netif *, uint32_t,
struct __kern_channel_event *, uint16_t);
/*
* Disable all checks on inbound/outbound packets on VP adapters
*/
extern uint32_t nx_netif_vp_accept_all;
/*
* Utility functions
*/
extern struct __kern_packet *nx_netif_alloc_packet(struct kern_pbufpool *,
uint32_t, kern_packet_t *);
extern void nx_netif_free_packet(struct __kern_packet *);
extern void nx_netif_free_packet_chain(struct __kern_packet *, int *);
extern void netif_ifp_inc_traffic_class_out_pkt(struct ifnet *, uint32_t,
uint32_t, uint32_t);
#define NETIF_CONVERT_RX 0x0001
#define NETIF_CONVERT_TX 0x0002
extern struct __kern_packet *
nx_netif_mbuf_to_filter_pkt_chain(struct nexus_netif_adapter *,
struct mbuf *, uint32_t);
extern struct mbuf *
nx_netif_filter_pkt_to_mbuf_chain(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern struct __kern_packet *
nx_netif_pkt_to_filter_pkt(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern struct __kern_packet *
nx_netif_pkt_to_filter_pkt_chain(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern struct __kern_packet *
nx_netif_filter_pkt_to_pkt_chain(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern struct mbuf *
nx_netif_pkt_to_mbuf(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern struct __kern_packet *
nx_netif_pkt_to_pkt(struct nexus_netif_adapter *,
struct __kern_packet *, uint32_t);
extern void nx_netif_mbuf_chain_info(struct mbuf *,
struct mbuf **, uint32_t *, uint32_t *);
extern void nx_netif_pkt_chain_info(struct __kern_packet *,
struct __kern_packet **, uint32_t *, uint32_t *);
extern int nx_netif_get_max_mtu(ifnet_t, uint32_t *);
extern void nx_netif_mit_config(struct nexus_netif_adapter *,
boolean_t *, boolean_t *, boolean_t *, boolean_t *);
extern void nx_netif_vp_region_params_adjust(struct nexus_adapter *,
struct skmem_region_params *);
extern void nx_netif_pktap_output(ifnet_t, int, struct __kern_packet *);
extern int netif_rx_notify_default(struct __kern_channel_ring *,
struct proc *p, uint32_t);
extern int netif_rx_notify_fast(struct __kern_channel_ring *,
struct proc *p, uint32_t);
extern int netif_llw_rx_notify_default(struct __kern_channel_ring *,
struct proc *p, uint32_t);
extern int netif_llw_rx_notify_fast(struct __kern_channel_ring *,
struct proc *p, uint32_t);
extern void netif_receive(struct nexus_netif_adapter *,
struct __kern_packet *, struct nexus_pkt_stats *);
#define NETIF_XMIT_FLAG_CHANNEL 0x0001
#define NETIF_XMIT_FLAG_HOST 0x0002
#define NETIF_XMIT_FLAG_REDIRECT 0x0004
#define NETIF_XMIT_FLAG_PACING 0x0008
extern void netif_transmit(struct ifnet *, uint32_t);
extern int netif_ring_tx_refill(const kern_channel_ring_t,
uint32_t, uint32_t, boolean_t, boolean_t *, boolean_t);
extern void netif_hwna_set_mode(struct nexus_adapter *, netif_mode_t,
void (*)(struct nexus_adapter *, struct __kern_packet *,
struct nexus_pkt_stats *));
extern void netif_hwna_clear_mode(struct nexus_adapter *);
/*
* rxpoll functions
*/
extern errno_t netif_rxpoll_set_params(struct ifnet *,
struct ifnet_poll_params *, boolean_t locked);
extern void netif_rxpoll_compat_thread_func(void *, wait_result_t);
/*
* GSO functions
*/
extern int netif_gso_dispatch(struct ifnet *ifp, struct mbuf *m);
extern void netif_gso_init(void);
extern void netif_gso_fini(void);
/*
* Logical link functions
*/
extern void nx_netif_llink_retain(struct netif_llink *);
extern void nx_netif_llink_release(struct netif_llink **);
extern void nx_netif_qset_retain(struct netif_qset *);
extern void nx_netif_qset_release(struct netif_qset **);
extern void nx_netif_llink_init(struct nx_netif *);
extern void nx_netif_llink_fini(struct nx_netif *);
extern struct netif_qset * nx_netif_find_qset(struct nx_netif *, uint64_t);
extern struct netif_qset * nx_netif_get_default_qset_noref(struct nx_netif *);
extern int netif_qset_enqueue(struct netif_qset *, struct __kern_packet *,
struct __kern_packet *, uint32_t, uint32_t, uint32_t *, uint32_t *);
extern int nx_netif_default_llink_config(struct nx_netif *,
struct kern_nexus_netif_llink_init *);
extern void nx_netif_llink_config_free(struct nx_netif *);
extern int nx_netif_llink_ext_init_default_queues(struct kern_nexus *);
extern void nx_netif_llink_ext_fini_default_queues(struct kern_nexus *);
extern int nx_netif_validate_llink_config(struct kern_nexus_netif_llink_init *,
bool);
extern int nx_netif_llink_add(struct nx_netif *,
struct kern_nexus_netif_llink_init *, struct netif_llink **);
extern int nx_netif_llink_remove(struct nx_netif *,
kern_nexus_netif_llink_id_t);
extern int nx_netif_notify_steering_info(struct nx_netif *,
struct netif_qset *, struct ifnet_traffic_descriptor_common *, bool);
__END_DECLS
#endif /* CONFIG_NEXUS_NETIF */
#include <skywalk/nexus/netif/nx_netif_compat.h>
#include <skywalk/nexus/netif/nx_netif_host.h>
#endif /* _SKYWALK_NEXUS_NETIF_H_ */
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