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t4_connect.c
(10.9 KB)
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t4_cpl_io.c
(58.96 KB)
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t4_ddp.c
(52.02 KB)
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t4_listen.c
(41.7 KB)
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t4_tls.c
(63.49 KB)
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t4_tls.h
(18.13 KB)
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t4_tom.c
(46.7 KB)
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t4_tom.h
(14.52 KB)
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t4_tom_l2t.c
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t4_tom_l2t.h
(2.06 KB)
Editing: t4_tom.h
/*- * SPDX-License-Identifier: BSD-2-Clause-FreeBSD * * Copyright (c) 2012, 2015 Chelsio Communications, Inc. * All rights reserved. * Written by: Navdeep Parhar <np@FreeBSD.org> * * Redistribution and use in source and binary forms, with or without * modification, are permitted provided that the following conditions * are met: * 1. Redistributions of source code must retain the above copyright * notice, this list of conditions and the following disclaimer. * 2. Redistributions in binary form must reproduce the above copyright * notice, this list of conditions and the following disclaimer in the * documentation and/or other materials provided with the distribution. * * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF * SUCH DAMAGE. * * $FreeBSD$ * */ #ifndef __T4_TOM_H__ #define __T4_TOM_H__ #include <sys/vmem.h> #include "common/t4_hw.h" #include "common/t4_msg.h" #include "tom/t4_tls.h" #define LISTEN_HASH_SIZE 32 /* * Min receive window. We want it to be large enough to accommodate receive * coalescing, handle jumbo frames, and not trigger sender SWS avoidance. */ #define MIN_RCV_WND (24 * 1024U) /* * Max receive window supported by HW in bytes. Only a small part of it can * be set through option0, the rest needs to be set through RX_DATA_ACK. */ #define MAX_RCV_WND ((1U << 27) - 1) #define DDP_RSVD_WIN (16 * 1024U) #define SB_DDP_INDICATE SB_IN_TOE /* soreceive must respond to indicate */ #define USE_DDP_RX_FLOW_CONTROL #define PPOD_SZ(n) ((n) * sizeof(struct pagepod)) #define PPOD_SIZE (PPOD_SZ(1)) /* TOE PCB flags */ enum { TPF_ATTACHED = (1 << 0), /* a tcpcb refers to this toepcb */ TPF_FLOWC_WR_SENT = (1 << 1), /* firmware flow context WR sent */ TPF_TX_DATA_SENT = (1 << 2), /* some data sent */ TPF_TX_SUSPENDED = (1 << 3), /* tx suspended for lack of resources */ TPF_SEND_FIN = (1 << 4), /* send FIN after all pending data */ TPF_FIN_SENT = (1 << 5), /* FIN has been sent */ TPF_ABORT_SHUTDOWN = (1 << 6), /* connection abort is in progress */ TPF_CPL_PENDING = (1 << 7), /* haven't received the last CPL */ TPF_SYNQE = (1 << 8), /* synq_entry, not really a toepcb */ TPF_SYNQE_EXPANDED = (1 << 9), /* toepcb ready, tid context updated */ TPF_FORCE_CREDITS = (1 << 10), /* always send credits */ TPF_KTLS = (1 << 11), /* send TLS records from KTLS */ TPF_INITIALIZED = (1 << 12), /* init_toepcb has been called */ TPF_TLS_RECEIVE = (1 << 13), /* should receive TLS records */ TPF_TLS_ESTABLISHED = (1 << 14), /* TLS handshake timer initialized */ }; enum { DDP_OK = (1 << 0), /* OK to turn on DDP */ DDP_SC_REQ = (1 << 1), /* state change (on/off) requested */ DDP_ON = (1 << 2), /* DDP is turned on */ DDP_BUF0_ACTIVE = (1 << 3), /* buffer 0 in use (not invalidated) */ DDP_BUF1_ACTIVE = (1 << 4), /* buffer 1 in use (not invalidated) */ DDP_TASK_ACTIVE = (1 << 5), /* requeue task is queued / running */ DDP_DEAD = (1 << 6), /* toepcb is shutting down */ }; struct sockopt; struct offload_settings; /* * Connection parameters for an offloaded connection. These are mostly (but not * all) hardware TOE parameters. */ struct conn_params { int8_t rx_coalesce; int8_t cong_algo; int8_t tc_idx; int8_t tstamp; int8_t sack; int8_t nagle; int8_t keepalive; int8_t wscale; int8_t ecn; int8_t mtu_idx; int8_t ulp_mode; int8_t tx_align; int16_t txq_idx; /* ofld_txq = &sc->sge.ofld_txq[txq_idx] */ int16_t rxq_idx; /* ofld_rxq = &sc->sge.ofld_rxq[rxq_idx] */ int16_t l2t_idx; uint16_t emss; uint16_t opt0_bufsize; u_int sndbuf; /* controls TP tx pages */ }; struct ofld_tx_sdesc { uint32_t plen; /* payload length */ uint8_t tx_credits; /* firmware tx credits (unit is 16B) */ void *iv_buffer; /* optional buffer holding IVs for TLS */ }; struct ppod_region { u_int pr_start; u_int pr_len; u_int pr_page_shift[4]; uint32_t pr_tag_mask; /* hardware tagmask for this region. */ uint32_t pr_invalid_bit; /* OR with this to invalidate tag. */ uint32_t pr_alias_mask; /* AND with tag to get alias bits. */ u_int pr_alias_shift; /* shift this much for first alias bit. */ vmem_t *pr_arena; }; struct ppod_reservation { struct ppod_region *prsv_pr; uint32_t prsv_tag; /* Full tag: pgsz, alias, tag, color */ u_int prsv_nppods; }; struct pageset { TAILQ_ENTRY(pageset) link; vm_page_t *pages; int npages; int flags; int offset; /* offset in first page */ int len; struct ppod_reservation prsv; struct vmspace *vm; vm_offset_t start; u_int vm_timestamp; }; TAILQ_HEAD(pagesetq, pageset); #define PS_PPODS_WRITTEN 0x0001 /* Page pods written to the card. */ struct ddp_buffer { struct pageset *ps; struct kaiocb *job; int cancel_pending; }; struct ddp_pcb { u_int flags; struct ddp_buffer db[2]; TAILQ_HEAD(, pageset) cached_pagesets; TAILQ_HEAD(, kaiocb) aiojobq; u_int waiting_count; u_int active_count; u_int cached_count; int active_id; /* the currently active DDP buffer */ struct task requeue_task; struct kaiocb *queueing; struct mtx lock; }; struct toepcb { struct tom_data *td; struct inpcb *inp; /* backpointer to host stack's PCB */ u_int flags; /* miscellaneous flags */ TAILQ_ENTRY(toepcb) link; /* toep_list */ int refcount; struct vnet *vnet; struct vi_info *vi; /* virtual interface */ struct sge_wrq *ofld_txq; struct sge_ofld_rxq *ofld_rxq; struct sge_wrq *ctrlq; struct l2t_entry *l2te; /* L2 table entry used by this connection */ struct clip_entry *ce; /* CLIP table entry used by this tid */ int tid; /* Connection identifier */ /* tx credit handling */ u_int tx_total; /* total tx WR credits (in 16B units) */ u_int tx_credits; /* tx WR credits (in 16B units) available */ u_int tx_nocompl; /* tx WR credits since last compl request */ u_int plen_nocompl; /* payload since last compl request */ struct conn_params params; void *ulpcb; void *ulpcb2; struct mbufq ulp_pduq; /* PDUs waiting to be sent out. */ struct mbufq ulp_pdu_reclaimq; struct ddp_pcb ddp; struct tls_ofld_info tls; TAILQ_HEAD(, kaiocb) aiotx_jobq; struct task aiotx_task; struct socket *aiotx_so; /* Tx software descriptor */ uint8_t txsd_total; uint8_t txsd_pidx; uint8_t txsd_cidx; uint8_t txsd_avail; struct ofld_tx_sdesc txsd[]; }; static inline int ulp_mode(struct toepcb *toep) { return (toep->params.ulp_mode); } #define DDP_LOCK(toep) mtx_lock(&(toep)->ddp.lock) #define DDP_UNLOCK(toep) mtx_unlock(&(toep)->ddp.lock) #define DDP_ASSERT_LOCKED(toep) mtx_assert(&(toep)->ddp.lock, MA_OWNED) /* * Compressed state for embryonic connections for a listener. */ struct synq_entry { struct listen_ctx *lctx; /* backpointer to listen ctx */ struct mbuf *syn; int flags; /* same as toepcb's tp_flags */ volatile int ok_to_respond; volatile u_int refcnt; int tid; uint32_t iss; uint32_t irs; uint32_t ts; uint32_t rss_hash; __be16 tcp_opt; /* from cpl_pass_establish */ struct toepcb *toep; struct conn_params params; }; /* listen_ctx flags */ #define LCTX_RPL_PENDING 1 /* waiting for a CPL_PASS_OPEN_RPL */ struct listen_ctx { LIST_ENTRY(listen_ctx) link; /* listen hash linkage */ volatile int refcount; int stid; struct stid_region stid_region; int flags; struct inpcb *inp; /* listening socket's inp */ struct vnet *vnet; struct sge_wrq *ctrlq; struct sge_ofld_rxq *ofld_rxq; struct clip_entry *ce; }; /* tcb_histent flags */ #define TE_RPL_PENDING 1 #define TE_ACTIVE 2 /* bits in one 8b tcb_histent sample. */ #define TS_RTO (1 << 0) #define TS_DUPACKS (1 << 1) #define TS_FASTREXMT (1 << 2) #define TS_SND_BACKLOGGED (1 << 3) #define TS_CWND_LIMITED (1 << 4) #define TS_ECN_ECE (1 << 5) #define TS_ECN_CWR (1 << 6) #define TS_RESERVED (1 << 7) /* Unused. */ struct tcb_histent { struct mtx te_lock; struct callout te_callout; uint64_t te_tcb[TCB_SIZE / sizeof(uint64_t)]; struct adapter *te_adapter; u_int te_flags; u_int te_tid; uint8_t te_pidx; uint8_t te_sample[100]; }; struct tom_data { struct toedev tod; /* toepcb's associated with this TOE device */ struct mtx toep_list_lock; TAILQ_HEAD(, toepcb) toep_list; struct mtx lctx_hash_lock; LIST_HEAD(, listen_ctx) *listen_hash; u_long listen_mask; int lctx_count; /* # of lctx in the hash table */ struct ppod_region pr; struct rwlock tcb_history_lock __aligned(CACHE_LINE_SIZE); struct tcb_histent **tcb_history; int dupack_threshold; /* WRs that will not be sent to the chip because L2 resolution failed */ struct mtx unsent_wr_lock; STAILQ_HEAD(, wrqe) unsent_wr_list; struct task reclaim_wr_resources; }; static inline struct tom_data * tod_td(struct toedev *tod) { return (__containerof(tod, struct tom_data, tod)); } static inline struct adapter * td_adapter(struct tom_data *td) { return (td->tod.tod_softc); } static inline void set_mbuf_ulp_submode(struct mbuf *m, uint8_t ulp_submode) { M_ASSERTPKTHDR(m); m->m_pkthdr.PH_per.eight[0] = ulp_submode; } static inline uint8_t mbuf_ulp_submode(struct mbuf *m) { M_ASSERTPKTHDR(m); return (m->m_pkthdr.PH_per.eight[0]); } /* t4_tom.c */ struct toepcb *alloc_toepcb(struct vi_info *, int); int init_toepcb(struct vi_info *, struct toepcb *); struct toepcb *hold_toepcb(struct toepcb *); void free_toepcb(struct toepcb *); void offload_socket(struct socket *, struct toepcb *); void undo_offload_socket(struct socket *); void final_cpl_received(struct toepcb *); void insert_tid(struct adapter *, int, void *, int); void *lookup_tid(struct adapter *, int); void update_tid(struct adapter *, int, void *); void remove_tid(struct adapter *, int, int); u_long select_rcv_wnd(struct socket *); int select_rcv_wscale(void); void init_conn_params(struct vi_info *, struct offload_settings *, struct in_conninfo *, struct socket *, const struct tcp_options *, int16_t, struct conn_params *cp); __be64 calc_options0(struct vi_info *, struct conn_params *); __be32 calc_options2(struct vi_info *, struct conn_params *); uint64_t select_ntuple(struct vi_info *, struct l2t_entry *); int negative_advice(int); int add_tid_to_history(struct adapter *, u_int); /* t4_connect.c */ void t4_init_connect_cpl_handlers(void); void t4_uninit_connect_cpl_handlers(void); int t4_connect(struct toedev *, struct socket *, struct nhop_object *, struct sockaddr *); void act_open_failure_cleanup(struct adapter *, u_int, u_int); /* t4_listen.c */ void t4_init_listen_cpl_handlers(void); void t4_uninit_listen_cpl_handlers(void); int t4_listen_start(struct toedev *, struct tcpcb *); int t4_listen_stop(struct toedev *, struct tcpcb *); void t4_syncache_added(struct toedev *, void *); void t4_syncache_removed(struct toedev *, void *); int t4_syncache_respond(struct toedev *, void *, struct mbuf *); int do_abort_req_synqe(struct sge_iq *, const struct rss_header *, struct mbuf *); int do_abort_rpl_synqe(struct sge_iq *, const struct rss_header *, struct mbuf *); void t4_offload_socket(struct toedev *, void *, struct socket *); void synack_failure_cleanup(struct adapter *, int); /* t4_cpl_io.c */ void aiotx_init_toep(struct toepcb *); int t4_aio_queue_aiotx(struct socket *, struct kaiocb *); void t4_init_cpl_io_handlers(void); void t4_uninit_cpl_io_handlers(void); void send_abort_rpl(struct adapter *, struct sge_wrq *, int , int); void send_flowc_wr(struct toepcb *, struct tcpcb *); void send_reset(struct adapter *, struct toepcb *, uint32_t); int send_rx_credits(struct adapter *, struct toepcb *, int); void send_rx_modulate(struct adapter *, struct toepcb *); void make_established(struct toepcb *, uint32_t, uint32_t, uint16_t); int t4_close_conn(struct adapter *, struct toepcb *); void t4_rcvd(struct toedev *, struct tcpcb *); void t4_rcvd_locked(struct toedev *, struct tcpcb *); int t4_tod_output(struct toedev *, struct tcpcb *); int t4_send_fin(struct toedev *, struct tcpcb *); int t4_send_rst(struct toedev *, struct tcpcb *); void t4_set_tcb_field(struct adapter *, struct sge_wrq *, struct toepcb *, uint16_t, uint64_t, uint64_t, int, int); void t4_push_frames(struct adapter *, struct toepcb *, int); void t4_push_pdus(struct adapter *, struct toepcb *, int); /* t4_ddp.c */ int t4_init_ppod_region(struct ppod_region *, struct t4_range *, u_int, const char *); void t4_free_ppod_region(struct ppod_region *); int t4_alloc_page_pods_for_ps(struct ppod_region *, struct pageset *); int t4_alloc_page_pods_for_buf(struct ppod_region *, vm_offset_t, int, struct ppod_reservation *); int t4_write_page_pods_for_ps(struct adapter *, struct sge_wrq *, int, struct pageset *); int t4_write_page_pods_for_buf(struct adapter *, struct sge_wrq *, int tid, struct ppod_reservation *, vm_offset_t, int); void t4_free_page_pods(struct ppod_reservation *); int t4_soreceive_ddp(struct socket *, struct sockaddr **, struct uio *, struct mbuf **, struct mbuf **, int *); int t4_aio_queue_ddp(struct socket *, struct kaiocb *); void t4_ddp_mod_load(void); void t4_ddp_mod_unload(void); void ddp_assert_empty(struct toepcb *); void ddp_init_toep(struct toepcb *); void ddp_uninit_toep(struct toepcb *); void ddp_queue_toep(struct toepcb *); void release_ddp_resources(struct toepcb *toep); void handle_ddp_close(struct toepcb *, struct tcpcb *, uint32_t); void handle_ddp_indicate(struct toepcb *); void insert_ddp_data(struct toepcb *, uint32_t); const struct offload_settings *lookup_offload_policy(struct adapter *, int, struct mbuf *, uint16_t, struct inpcb *); /* t4_tls.c */ bool can_tls_offload(struct adapter *); void do_rx_data_tls(const struct cpl_rx_data *, struct toepcb *, struct mbuf *); int t4_ctloutput_tls(struct socket *, struct sockopt *); void t4_push_tls_records(struct adapter *, struct toepcb *, int); void t4_push_ktls(struct adapter *, struct toepcb *, int); void t4_tls_mod_load(void); void t4_tls_mod_unload(void); void tls_detach(struct toepcb *); void tls_establish(struct toepcb *); void tls_init_toep(struct toepcb *); int tls_rx_key(struct toepcb *); void tls_stop_handshake_timer(struct toepcb *); int tls_tx_key(struct toepcb *); void tls_uninit_toep(struct toepcb *); int tls_alloc_ktls(struct toepcb *, struct ktls_session *, int); #endif
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