diff options
Diffstat (limited to 'drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h')
| -rw-r--r-- | drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h | 705 |
1 files changed, 0 insertions, 705 deletions
diff --git a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h b/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h deleted file mode 100644 index 570f54ed57b1..000000000000 --- a/drivers/staging/lustre/lnet/klnds/socklnd/socklnd.h +++ /dev/null @@ -1,705 +0,0 @@ -// SPDX-License-Identifier: GPL-2.0 -/* - * Copyright (c) 2003, 2010, Oracle and/or its affiliates. All rights reserved. - * - * Copyright (c) 2011, 2012, Intel Corporation. - * - * Author: Zach Brown <zab@zabbo.net> - * Author: Peter J. Braam <braam@clusterfs.com> - * Author: Phil Schwan <phil@clusterfs.com> - * Author: Eric Barton <eric@bartonsoftware.com> - * - * This file is part of Lustre, http://www.lustre.org - * - * Portals is free software; you can redistribute it and/or - * modify it under the terms of version 2 of the GNU General Public - * License as published by the Free Software Foundation. - * - * Portals is distributed in the hope that it will be useful, - * but WITHOUT ANY WARRANTY; without even the implied warranty of - * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the - * GNU General Public License for more details. - * - */ - -#ifndef _SOCKLND_SOCKLND_H_ -#define _SOCKLND_SOCKLND_H_ - -#define DEBUG_PORTAL_ALLOC -#define DEBUG_SUBSYSTEM S_LND - -#include <linux/crc32.h> -#include <linux/errno.h> -#include <linux/if.h> -#include <linux/init.h> -#include <linux/kernel.h> -#include <linux/kmod.h> -#include <linux/list.h> -#include <linux/mm.h> -#include <linux/module.h> -#include <linux/stat.h> -#include <linux/string.h> -#include <linux/syscalls.h> -#include <linux/sysctl.h> -#include <linux/uio.h> -#include <linux/unistd.h> -#include <asm/irq.h> -#include <net/sock.h> -#include <net/tcp.h> - -#include <linux/libcfs/libcfs.h> -#include <linux/lnet/lib-lnet.h> -#include <linux/lnet/socklnd.h> - -/* assume one thread for each connection type */ -#define SOCKNAL_NSCHEDS 3 -#define SOCKNAL_NSCHEDS_HIGH (SOCKNAL_NSCHEDS << 1) - -#define SOCKNAL_PEER_HASH_SIZE 101 /* # peer lists */ -#define SOCKNAL_RESCHED 100 /* # scheduler loops before reschedule */ -#define SOCKNAL_INSANITY_RECONN 5000 /* connd is trying on reconn infinitely */ -#define SOCKNAL_ENOMEM_RETRY CFS_TICK /* jiffies between retries */ - -#define SOCKNAL_SINGLE_FRAG_TX 0 /* disable multi-fragment sends */ -#define SOCKNAL_SINGLE_FRAG_RX 0 /* disable multi-fragment receives */ - -#define SOCKNAL_VERSION_DEBUG 0 /* enable protocol version debugging */ - -/* - * risk kmap deadlock on multi-frag I/O (backs off to single-frag if disabled). - * no risk if we're not running on a CONFIG_HIGHMEM platform. - */ -#ifdef CONFIG_HIGHMEM -# define SOCKNAL_RISK_KMAP_DEADLOCK 0 -#else -# define SOCKNAL_RISK_KMAP_DEADLOCK 1 -#endif - -struct ksock_sched_info; - -struct ksock_sched { /* per scheduler state */ - spinlock_t kss_lock; /* serialise */ - struct list_head kss_rx_conns; /* conn waiting to be read */ - struct list_head kss_tx_conns; /* conn waiting to be written */ - struct list_head kss_zombie_noop_txs; /* zombie noop tx list */ - wait_queue_head_t kss_waitq; /* where scheduler sleeps */ - int kss_nconns; /* # connections assigned to - * this scheduler - */ - struct ksock_sched_info *kss_info; /* owner of it */ -}; - -struct ksock_sched_info { - int ksi_nthreads_max; /* max allowed threads */ - int ksi_nthreads; /* number of threads */ - int ksi_cpt; /* CPT id */ - struct ksock_sched *ksi_scheds; /* array of schedulers */ -}; - -#define KSOCK_CPT_SHIFT 16 -#define KSOCK_THREAD_ID(cpt, sid) (((cpt) << KSOCK_CPT_SHIFT) | (sid)) -#define KSOCK_THREAD_CPT(id) ((id) >> KSOCK_CPT_SHIFT) -#define KSOCK_THREAD_SID(id) ((id) & ((1UL << KSOCK_CPT_SHIFT) - 1)) - -struct ksock_interface { /* in-use interface */ - __u32 ksni_ipaddr; /* interface's IP address */ - __u32 ksni_netmask; /* interface's network mask */ - int ksni_nroutes; /* # routes using (active) */ - int ksni_npeers; /* # peers using (passive) */ - char ksni_name[IFNAMSIZ]; /* interface name */ -}; - -struct ksock_tunables { - int *ksnd_timeout; /* "stuck" socket timeout - * (seconds) - */ - int *ksnd_nscheds; /* # scheduler threads in each - * pool while starting - */ - int *ksnd_nconnds; /* # connection daemons */ - int *ksnd_nconnds_max; /* max # connection daemons */ - int *ksnd_min_reconnectms; /* first connection retry after - * (ms)... - */ - int *ksnd_max_reconnectms; /* ...exponentially increasing to - * this - */ - int *ksnd_eager_ack; /* make TCP ack eagerly? */ - int *ksnd_typed_conns; /* drive sockets by type? */ - int *ksnd_min_bulk; /* smallest "large" message */ - int *ksnd_tx_buffer_size; /* socket tx buffer size */ - int *ksnd_rx_buffer_size; /* socket rx buffer size */ - int *ksnd_nagle; /* enable NAGLE? */ - int *ksnd_round_robin; /* round robin for multiple - * interfaces - */ - int *ksnd_keepalive; /* # secs for sending keepalive - * NOOP - */ - int *ksnd_keepalive_idle; /* # idle secs before 1st probe - */ - int *ksnd_keepalive_count; /* # probes */ - int *ksnd_keepalive_intvl; /* time between probes */ - int *ksnd_credits; /* # concurrent sends */ - int *ksnd_peertxcredits; /* # concurrent sends to 1 peer - */ - int *ksnd_peerrtrcredits; /* # per-peer router buffer - * credits - */ - int *ksnd_peertimeout; /* seconds to consider peer dead - */ - int *ksnd_enable_csum; /* enable check sum */ - int *ksnd_inject_csum_error; /* set non-zero to inject - * checksum error - */ - int *ksnd_nonblk_zcack; /* always send zc-ack on - * non-blocking connection - */ - unsigned int *ksnd_zc_min_payload; /* minimum zero copy payload - * size - */ - int *ksnd_zc_recv; /* enable ZC receive (for - * Chelsio TOE) - */ - int *ksnd_zc_recv_min_nfrags; /* minimum # of fragments to - * enable ZC receive - */ -}; - -struct ksock_net { - __u64 ksnn_incarnation; /* my epoch */ - spinlock_t ksnn_lock; /* serialise */ - struct list_head ksnn_list; /* chain on global list */ - int ksnn_npeers; /* # peers */ - int ksnn_shutdown; /* shutting down? */ - int ksnn_ninterfaces; /* IP interfaces */ - struct ksock_interface ksnn_interfaces[LNET_MAX_INTERFACES]; -}; - -/** connd timeout */ -#define SOCKNAL_CONND_TIMEOUT 120 -/** reserved thread for accepting & creating new connd */ -#define SOCKNAL_CONND_RESV 1 - -struct ksock_nal_data { - int ksnd_init; /* initialisation state - */ - int ksnd_nnets; /* # networks set up */ - struct list_head ksnd_nets; /* list of nets */ - rwlock_t ksnd_global_lock; /* stabilize peer/conn - * ops - */ - struct list_head *ksnd_peers; /* hash table of all my - * known peers - */ - int ksnd_peer_hash_size; /* size of ksnd_peers */ - - int ksnd_nthreads; /* # live threads */ - int ksnd_shuttingdown; /* tell threads to exit - */ - struct ksock_sched_info **ksnd_sched_info; /* schedulers info */ - - atomic_t ksnd_nactive_txs; /* #active txs */ - - struct list_head ksnd_deathrow_conns; /* conns to close: - * reaper_lock - */ - struct list_head ksnd_zombie_conns; /* conns to free: - * reaper_lock - */ - struct list_head ksnd_enomem_conns; /* conns to retry: - * reaper_lock - */ - wait_queue_head_t ksnd_reaper_waitq; /* reaper sleeps here */ - unsigned long ksnd_reaper_waketime; /* when reaper will wake - */ - spinlock_t ksnd_reaper_lock; /* serialise */ - - int ksnd_enomem_tx; /* test ENOMEM sender */ - int ksnd_stall_tx; /* test sluggish sender - */ - int ksnd_stall_rx; /* test sluggish - * receiver - */ - struct list_head ksnd_connd_connreqs; /* incoming connection - * requests - */ - struct list_head ksnd_connd_routes; /* routes waiting to be - * connected - */ - wait_queue_head_t ksnd_connd_waitq; /* connds sleep here */ - int ksnd_connd_connecting; /* # connds connecting - */ - time64_t ksnd_connd_failed_stamp;/* time stamp of the - * last failed - * connecting attempt - */ - time64_t ksnd_connd_starting_stamp;/* time stamp of the - * last starting connd - */ - unsigned int ksnd_connd_starting; /* # starting connd */ - unsigned int ksnd_connd_running; /* # running connd */ - spinlock_t ksnd_connd_lock; /* serialise */ - - struct list_head ksnd_idle_noop_txs; /* list head for freed - * noop tx - */ - spinlock_t ksnd_tx_lock; /* serialise, g_lock - * unsafe - */ -}; - -#define SOCKNAL_INIT_NOTHING 0 -#define SOCKNAL_INIT_DATA 1 -#define SOCKNAL_INIT_ALL 2 - -/* - * A packet just assembled for transmission is represented by 1 or more - * struct iovec fragments (the first frag contains the portals header), - * followed by 0 or more struct bio_vec fragments. - * - * On the receive side, initially 1 struct iovec fragment is posted for - * receive (the header). Once the header has been received, the payload is - * received into either struct iovec or struct bio_vec fragments, depending on - * what the header matched or whether the message needs forwarding. - */ -struct ksock_conn; /* forward ref */ -struct ksock_peer; /* forward ref */ -struct ksock_route; /* forward ref */ -struct ksock_proto; /* forward ref */ - -struct ksock_tx { /* transmit packet */ - struct list_head tx_list; /* queue on conn for transmission etc - */ - struct list_head tx_zc_list; /* queue on peer for ZC request */ - atomic_t tx_refcount; /* tx reference count */ - int tx_nob; /* # packet bytes */ - int tx_resid; /* residual bytes */ - int tx_niov; /* # packet iovec frags */ - struct kvec *tx_iov; /* packet iovec frags */ - int tx_nkiov; /* # packet page frags */ - unsigned short tx_zc_aborted; /* aborted ZC request */ - unsigned short tx_zc_capable:1; /* payload is large enough for ZC */ - unsigned short tx_zc_checked:1; /* Have I checked if I should ZC? */ - unsigned short tx_nonblk:1; /* it's a non-blocking ACK */ - struct bio_vec *tx_kiov; /* packet page frags */ - struct ksock_conn *tx_conn; /* owning conn */ - struct lnet_msg *tx_lnetmsg; /* lnet message for lnet_finalize() - */ - unsigned long tx_deadline; /* when (in jiffies) tx times out */ - struct ksock_msg tx_msg; /* socklnd message buffer */ - int tx_desc_size; /* size of this descriptor */ - union { - struct { - struct kvec iov; /* virt hdr */ - struct bio_vec kiov[0]; /* paged payload */ - } paged; - struct { - struct kvec iov[1]; /* virt hdr + payload */ - } virt; - } tx_frags; -}; - -#define KSOCK_NOOP_TX_SIZE (offsetof(struct ksock_tx, tx_frags.paged.kiov[0])) - -/* network zero copy callback descriptor embedded in struct ksock_tx */ - -#define SOCKNAL_RX_KSM_HEADER 1 /* reading ksock message header */ -#define SOCKNAL_RX_LNET_HEADER 2 /* reading lnet message header */ -#define SOCKNAL_RX_PARSE 3 /* Calling lnet_parse() */ -#define SOCKNAL_RX_PARSE_WAIT 4 /* waiting to be told to read the body */ -#define SOCKNAL_RX_LNET_PAYLOAD 5 /* reading lnet payload (to deliver here) */ -#define SOCKNAL_RX_SLOP 6 /* skipping body */ - -struct ksock_conn { - struct ksock_peer *ksnc_peer; /* owning peer */ - struct ksock_route *ksnc_route; /* owning route */ - struct list_head ksnc_list; /* stash on peer's conn list */ - struct socket *ksnc_sock; /* actual socket */ - void *ksnc_saved_data_ready; /* socket's original - * data_ready() callback - */ - void *ksnc_saved_write_space; /* socket's original - * write_space() callback - */ - atomic_t ksnc_conn_refcount;/* conn refcount */ - atomic_t ksnc_sock_refcount;/* sock refcount */ - struct ksock_sched *ksnc_scheduler; /* who schedules this connection - */ - __u32 ksnc_myipaddr; /* my IP */ - __u32 ksnc_ipaddr; /* peer's IP */ - int ksnc_port; /* peer's port */ - signed int ksnc_type:3; /* type of connection, should be - * signed value - */ - unsigned int ksnc_closing:1; /* being shut down */ - unsigned int ksnc_flip:1; /* flip or not, only for V2.x */ - unsigned int ksnc_zc_capable:1; /* enable to ZC */ - struct ksock_proto *ksnc_proto; /* protocol for the connection */ - - /* reader */ - struct list_head ksnc_rx_list; /* where I enq waiting input or a - * forwarding descriptor - */ - unsigned long ksnc_rx_deadline; /* when (in jiffies) receive times - * out - */ - __u8 ksnc_rx_started; /* started receiving a message */ - __u8 ksnc_rx_ready; /* data ready to read */ - __u8 ksnc_rx_scheduled; /* being progressed */ - __u8 ksnc_rx_state; /* what is being read */ - int ksnc_rx_nob_left; /* # bytes to next hdr/body */ - struct iov_iter ksnc_rx_to; /* copy destination */ - struct kvec ksnc_rx_iov_space[LNET_MAX_IOV]; /* space for frag descriptors */ - __u32 ksnc_rx_csum; /* partial checksum for incoming - * data - */ - void *ksnc_cookie; /* rx lnet_finalize passthru arg - */ - struct ksock_msg ksnc_msg; /* incoming message buffer: - * V2.x message takes the - * whole struct - * V1.x message is a bare - * struct lnet_hdr, it's stored in - * ksnc_msg.ksm_u.lnetmsg - */ - /* WRITER */ - struct list_head ksnc_tx_list; /* where I enq waiting for output - * space - */ - struct list_head ksnc_tx_queue; /* packets waiting to be sent */ - struct ksock_tx *ksnc_tx_carrier; /* next TX that can carry a LNet - * message or ZC-ACK - */ - unsigned long ksnc_tx_deadline; /* when (in jiffies) tx times out - */ - int ksnc_tx_bufnob; /* send buffer marker */ - atomic_t ksnc_tx_nob; /* # bytes queued */ - int ksnc_tx_ready; /* write space */ - int ksnc_tx_scheduled; /* being progressed */ - unsigned long ksnc_tx_last_post; /* time stamp of the last posted - * TX - */ -}; - -struct ksock_route { - struct list_head ksnr_list; /* chain on peer route list */ - struct list_head ksnr_connd_list; /* chain on ksnr_connd_routes */ - struct ksock_peer *ksnr_peer; /* owning peer */ - atomic_t ksnr_refcount; /* # users */ - unsigned long ksnr_timeout; /* when (in jiffies) reconnection - * can happen next - */ - long ksnr_retry_interval; /* how long between retries */ - __u32 ksnr_myipaddr; /* my IP */ - __u32 ksnr_ipaddr; /* IP address to connect to */ - int ksnr_port; /* port to connect to */ - unsigned int ksnr_scheduled:1; /* scheduled for attention */ - unsigned int ksnr_connecting:1; /* connection establishment in - * progress - */ - unsigned int ksnr_connected:4; /* connections established by - * type - */ - unsigned int ksnr_deleted:1; /* been removed from peer? */ - unsigned int ksnr_share_count; /* created explicitly? */ - int ksnr_conn_count; /* # conns established by this - * route - */ -}; - -#define SOCKNAL_KEEPALIVE_PING 1 /* cookie for keepalive ping */ - -struct ksock_peer { - struct list_head ksnp_list; /* stash on global peer list */ - unsigned long ksnp_last_alive; /* when (in jiffies) I was last - * alive - */ - struct lnet_process_id ksnp_id; /* who's on the other end(s) */ - atomic_t ksnp_refcount; /* # users */ - int ksnp_sharecount; /* lconf usage counter */ - int ksnp_closing; /* being closed */ - int ksnp_accepting; /* # passive connections pending - */ - int ksnp_error; /* errno on closing last conn */ - __u64 ksnp_zc_next_cookie; /* ZC completion cookie */ - __u64 ksnp_incarnation; /* latest known peer incarnation - */ - struct ksock_proto *ksnp_proto; /* latest known peer protocol */ - struct list_head ksnp_conns; /* all active connections */ - struct list_head ksnp_routes; /* routes */ - struct list_head ksnp_tx_queue; /* waiting packets */ - spinlock_t ksnp_lock; /* serialize, g_lock unsafe */ - struct list_head ksnp_zc_req_list; /* zero copy requests wait for - * ACK - */ - unsigned long ksnp_send_keepalive; /* time to send keepalive */ - struct lnet_ni *ksnp_ni; /* which network */ - int ksnp_n_passive_ips; /* # of... */ - - /* preferred local interfaces */ - __u32 ksnp_passive_ips[LNET_MAX_INTERFACES]; -}; - -struct ksock_connreq { - struct list_head ksncr_list; /* stash on ksnd_connd_connreqs */ - struct lnet_ni *ksncr_ni; /* chosen NI */ - struct socket *ksncr_sock; /* accepted socket */ -}; - -extern struct ksock_nal_data ksocknal_data; -extern struct ksock_tunables ksocknal_tunables; - -#define SOCKNAL_MATCH_NO 0 /* TX can't match type of connection */ -#define SOCKNAL_MATCH_YES 1 /* TX matches type of connection */ -#define SOCKNAL_MATCH_MAY 2 /* TX can be sent on the connection, but not - * preferred - */ - -struct ksock_proto { - /* version number of protocol */ - int pro_version; - - /* handshake function */ - int (*pro_send_hello)(struct ksock_conn *, struct ksock_hello_msg *); - - /* handshake function */ - int (*pro_recv_hello)(struct ksock_conn *, struct ksock_hello_msg *, int); - - /* message pack */ - void (*pro_pack)(struct ksock_tx *); - - /* message unpack */ - void (*pro_unpack)(struct ksock_msg *); - - /* queue tx on the connection */ - struct ksock_tx *(*pro_queue_tx_msg)(struct ksock_conn *, struct ksock_tx *); - - /* queue ZC ack on the connection */ - int (*pro_queue_tx_zcack)(struct ksock_conn *, struct ksock_tx *, __u64); - - /* handle ZC request */ - int (*pro_handle_zcreq)(struct ksock_conn *, __u64, int); - - /* handle ZC ACK */ - int (*pro_handle_zcack)(struct ksock_conn *, __u64, __u64); - - /* - * msg type matches the connection type: - * return value: - * return MATCH_NO : no - * return MATCH_YES : matching type - * return MATCH_MAY : can be backup - */ - int (*pro_match_tx)(struct ksock_conn *, struct ksock_tx *, int); -}; - -extern struct ksock_proto ksocknal_protocol_v1x; -extern struct ksock_proto ksocknal_protocol_v2x; -extern struct ksock_proto ksocknal_protocol_v3x; - -#define KSOCK_PROTO_V1_MAJOR LNET_PROTO_TCP_VERSION_MAJOR -#define KSOCK_PROTO_V1_MINOR LNET_PROTO_TCP_VERSION_MINOR -#define KSOCK_PROTO_V1 KSOCK_PROTO_V1_MAJOR - -#ifndef CPU_MASK_NONE -#define CPU_MASK_NONE 0UL -#endif - -static inline int -ksocknal_route_mask(void) -{ - if (!*ksocknal_tunables.ksnd_typed_conns) - return (1 << SOCKLND_CONN_ANY); - - return ((1 << SOCKLND_CONN_CONTROL) | - (1 << SOCKLND_CONN_BULK_IN) | - (1 << SOCKLND_CONN_BULK_OUT)); -} - -static inline struct list_head * -ksocknal_nid2peerlist(lnet_nid_t nid) -{ - unsigned int hash = ((unsigned int)nid) % ksocknal_data.ksnd_peer_hash_size; - - return &ksocknal_data.ksnd_peers[hash]; -} - -static inline void -ksocknal_conn_addref(struct ksock_conn *conn) -{ - LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0); - atomic_inc(&conn->ksnc_conn_refcount); -} - -void ksocknal_queue_zombie_conn(struct ksock_conn *conn); -void ksocknal_finalize_zcreq(struct ksock_conn *conn); - -static inline void -ksocknal_conn_decref(struct ksock_conn *conn) -{ - LASSERT(atomic_read(&conn->ksnc_conn_refcount) > 0); - if (atomic_dec_and_test(&conn->ksnc_conn_refcount)) - ksocknal_queue_zombie_conn(conn); -} - -static inline int -ksocknal_connsock_addref(struct ksock_conn *conn) -{ - int rc = -ESHUTDOWN; - - read_lock(&ksocknal_data.ksnd_global_lock); - if (!conn->ksnc_closing) { - LASSERT(atomic_read(&conn->ksnc_sock_refcount) > 0); - atomic_inc(&conn->ksnc_sock_refcount); - rc = 0; - } - read_unlock(&ksocknal_data.ksnd_global_lock); - - return rc; -} - -static inline void -ksocknal_connsock_decref(struct ksock_conn *conn) -{ - LASSERT(atomic_read(&conn->ksnc_sock_refcount) > 0); - if (atomic_dec_and_test(&conn->ksnc_sock_refcount)) { - LASSERT(conn->ksnc_closing); - sock_release(conn->ksnc_sock); - conn->ksnc_sock = NULL; - ksocknal_finalize_zcreq(conn); - } -} - -static inline void -ksocknal_tx_addref(struct ksock_tx *tx) -{ - LASSERT(atomic_read(&tx->tx_refcount) > 0); - atomic_inc(&tx->tx_refcount); -} - -void ksocknal_tx_prep(struct ksock_conn *, struct ksock_tx *tx); -void ksocknal_tx_done(struct lnet_ni *ni, struct ksock_tx *tx); - -static inline void -ksocknal_tx_decref(struct ksock_tx *tx) -{ - LASSERT(atomic_read(&tx->tx_refcount) > 0); - if (atomic_dec_and_test(&tx->tx_refcount)) - ksocknal_tx_done(NULL, tx); -} - -static inline void -ksocknal_route_addref(struct ksock_route *route) -{ - LASSERT(atomic_read(&route->ksnr_refcount) > 0); - atomic_inc(&route->ksnr_refcount); -} - -void ksocknal_destroy_route(struct ksock_route *route); - -static inline void -ksocknal_route_decref(struct ksock_route *route) -{ - LASSERT(atomic_read(&route->ksnr_refcount) > 0); - if (atomic_dec_and_test(&route->ksnr_refcount)) - ksocknal_destroy_route(route); -} - -static inline void -ksocknal_peer_addref(struct ksock_peer *peer) -{ - LASSERT(atomic_read(&peer->ksnp_refcount) > 0); - atomic_inc(&peer->ksnp_refcount); -} - -void ksocknal_destroy_peer(struct ksock_peer *peer); - -static inline void -ksocknal_peer_decref(struct ksock_peer *peer) -{ - LASSERT(atomic_read(&peer->ksnp_refcount) > 0); - if (atomic_dec_and_test(&peer->ksnp_refcount)) - ksocknal_destroy_peer(peer); -} - -int ksocknal_startup(struct lnet_ni *ni); -void ksocknal_shutdown(struct lnet_ni *ni); -int ksocknal_ctl(struct lnet_ni *ni, unsigned int cmd, void *arg); -int ksocknal_send(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg); -int ksocknal_recv(struct lnet_ni *ni, void *private, struct lnet_msg *lntmsg, - int delayed, struct iov_iter *to, unsigned int rlen); -int ksocknal_accept(struct lnet_ni *ni, struct socket *sock); - -int ksocknal_add_peer(struct lnet_ni *ni, struct lnet_process_id id, __u32 ip, - int port); -struct ksock_peer *ksocknal_find_peer_locked(struct lnet_ni *ni, - struct lnet_process_id id); -struct ksock_peer *ksocknal_find_peer(struct lnet_ni *ni, - struct lnet_process_id id); -void ksocknal_peer_failed(struct ksock_peer *peer); -int ksocknal_create_conn(struct lnet_ni *ni, struct ksock_route *route, - struct socket *sock, int type); -void ksocknal_close_conn_locked(struct ksock_conn *conn, int why); -void ksocknal_terminate_conn(struct ksock_conn *conn); -void ksocknal_destroy_conn(struct ksock_conn *conn); -int ksocknal_close_peer_conns_locked(struct ksock_peer *peer, - __u32 ipaddr, int why); -int ksocknal_close_conn_and_siblings(struct ksock_conn *conn, int why); -int ksocknal_close_matching_conns(struct lnet_process_id id, __u32 ipaddr); -struct ksock_conn *ksocknal_find_conn_locked(struct ksock_peer *peer, - struct ksock_tx *tx, int nonblk); - -int ksocknal_launch_packet(struct lnet_ni *ni, struct ksock_tx *tx, - struct lnet_process_id id); -struct ksock_tx *ksocknal_alloc_tx(int type, int size); -void ksocknal_free_tx(struct ksock_tx *tx); -struct ksock_tx *ksocknal_alloc_tx_noop(__u64 cookie, int nonblk); -void ksocknal_next_tx_carrier(struct ksock_conn *conn); -void ksocknal_queue_tx_locked(struct ksock_tx *tx, struct ksock_conn *conn); -void ksocknal_txlist_done(struct lnet_ni *ni, struct list_head *txlist, int error); -void ksocknal_notify(struct lnet_ni *ni, lnet_nid_t gw_nid, int alive); -void ksocknal_query(struct lnet_ni *ni, lnet_nid_t nid, unsigned long *when); -int ksocknal_thread_start(int (*fn)(void *arg), void *arg, char *name); -void ksocknal_thread_fini(void); -void ksocknal_launch_all_connections_locked(struct ksock_peer *peer); -struct ksock_route *ksocknal_find_connectable_route_locked(struct ksock_peer *peer); -struct ksock_route *ksocknal_find_connecting_route_locked(struct ksock_peer *peer); -int ksocknal_new_packet(struct ksock_conn *conn, int skip); -int ksocknal_scheduler(void *arg); -int ksocknal_connd(void *arg); -int ksocknal_reaper(void *arg); -int ksocknal_send_hello(struct lnet_ni *ni, struct ksock_conn *conn, - lnet_nid_t peer_nid, struct ksock_hello_msg *hello); -int ksocknal_recv_hello(struct lnet_ni *ni, struct ksock_conn *conn, - struct ksock_hello_msg *hello, - struct lnet_process_id *id, - __u64 *incarnation); -void ksocknal_read_callback(struct ksock_conn *conn); -void ksocknal_write_callback(struct ksock_conn *conn); - -int ksocknal_lib_zc_capable(struct ksock_conn *conn); -void ksocknal_lib_save_callback(struct socket *sock, struct ksock_conn *conn); -void ksocknal_lib_set_callback(struct socket *sock, struct ksock_conn *conn); -void ksocknal_lib_reset_callback(struct socket *sock, struct ksock_conn *conn); -void ksocknal_lib_push_conn(struct ksock_conn *conn); -int ksocknal_lib_get_conn_addrs(struct ksock_conn *conn); -int ksocknal_lib_setup_sock(struct socket *so); -int ksocknal_lib_send_iov(struct ksock_conn *conn, struct ksock_tx *tx); -int ksocknal_lib_send_kiov(struct ksock_conn *conn, struct ksock_tx *tx); -void ksocknal_lib_eager_ack(struct ksock_conn *conn); -int ksocknal_lib_recv(struct ksock_conn *conn); -int ksocknal_lib_get_conn_tunables(struct ksock_conn *conn, int *txmem, - int *rxmem, int *nagle); - -void ksocknal_read_callback(struct ksock_conn *conn); -void ksocknal_write_callback(struct ksock_conn *conn); - -int ksocknal_tunables_init(void); - -void ksocknal_lib_csum_tx(struct ksock_tx *tx); - -int ksocknal_lib_memory_pressure(struct ksock_conn *conn); -int ksocknal_lib_bind_thread_to_cpu(int id); - -#endif /* _SOCKLND_SOCKLND_H_ */ |