1aa0a1e58SJeff Roberson #ifndef _SDP_H_ 2aa0a1e58SJeff Roberson #define _SDP_H_ 3aa0a1e58SJeff Roberson 4aa0a1e58SJeff Roberson #include "opt_ddb.h" 5aa0a1e58SJeff Roberson #include "opt_inet.h" 6aa0a1e58SJeff Roberson #include "opt_ofed.h" 7aa0a1e58SJeff Roberson 8aa0a1e58SJeff Roberson #include <sys/param.h> 9aa0a1e58SJeff Roberson #include <sys/systm.h> 10aa0a1e58SJeff Roberson #include <sys/malloc.h> 11aa0a1e58SJeff Roberson #include <sys/kernel.h> 12aa0a1e58SJeff Roberson #include <sys/sysctl.h> 13aa0a1e58SJeff Roberson #include <sys/mbuf.h> 14aa0a1e58SJeff Roberson #include <sys/lock.h> 15aa0a1e58SJeff Roberson #include <sys/rwlock.h> 16aa0a1e58SJeff Roberson #include <sys/socket.h> 17aa0a1e58SJeff Roberson #include <sys/socketvar.h> 18aa0a1e58SJeff Roberson #include <sys/protosw.h> 19aa0a1e58SJeff Roberson #include <sys/proc.h> 20aa0a1e58SJeff Roberson #include <sys/jail.h> 21aa0a1e58SJeff Roberson #include <sys/domain.h> 22aa0a1e58SJeff Roberson 23aa0a1e58SJeff Roberson #ifdef DDB 24aa0a1e58SJeff Roberson #include <ddb/ddb.h> 25aa0a1e58SJeff Roberson #endif 26aa0a1e58SJeff Roberson 27aa0a1e58SJeff Roberson #include <net/if.h> 2876039bc8SGleb Smirnoff #include <net/if_var.h> 29aa0a1e58SJeff Roberson #include <net/route.h> 30aa0a1e58SJeff Roberson #include <net/vnet.h> 31aa0a1e58SJeff Roberson 32aa0a1e58SJeff Roberson #include <netinet/in.h> 33aa0a1e58SJeff Roberson #include <netinet/in_systm.h> 34aa0a1e58SJeff Roberson #include <netinet/in_var.h> 35aa0a1e58SJeff Roberson #include <netinet/in_pcb.h> 36aa0a1e58SJeff Roberson #include <netinet/tcp.h> 37aa0a1e58SJeff Roberson #include <netinet/tcp_fsm.h> 38aa0a1e58SJeff Roberson #include <netinet/tcp_timer.h> 39aa0a1e58SJeff Roberson #include <netinet/tcp_var.h> 40aa0a1e58SJeff Roberson 41aa0a1e58SJeff Roberson #include <linux/device.h> 42aa0a1e58SJeff Roberson #include <linux/err.h> 43aa0a1e58SJeff Roberson #include <linux/sched.h> 44aa0a1e58SJeff Roberson #include <linux/workqueue.h> 45aa0a1e58SJeff Roberson #include <linux/wait.h> 46aa0a1e58SJeff Roberson #include <linux/module.h> 47aa0a1e58SJeff Roberson #include <linux/moduleparam.h> 48aa0a1e58SJeff Roberson #include <linux/pci.h> 49aa0a1e58SJeff Roberson 50aa0a1e58SJeff Roberson #include <rdma/ib_verbs.h> 51aa0a1e58SJeff Roberson #include <rdma/rdma_cm.h> 52aa0a1e58SJeff Roberson #include <rdma/ib_cm.h> 53aa0a1e58SJeff Roberson #include <rdma/sdp_socket.h> 54aa0a1e58SJeff Roberson #include <rdma/ib_fmr_pool.h> 55aa0a1e58SJeff Roberson 56aa0a1e58SJeff Roberson #ifdef SDP_DEBUG 57aa0a1e58SJeff Roberson #define CONFIG_INFINIBAND_SDP_DEBUG 58aa0a1e58SJeff Roberson #endif 59aa0a1e58SJeff Roberson 60aa0a1e58SJeff Roberson #include "sdp_dbg.h" 61aa0a1e58SJeff Roberson 62aa0a1e58SJeff Roberson #undef LIST_HEAD 63aa0a1e58SJeff Roberson /* From sys/queue.h */ 64aa0a1e58SJeff Roberson #define LIST_HEAD(name, type) \ 65aa0a1e58SJeff Roberson struct name { \ 66aa0a1e58SJeff Roberson struct type *lh_first; /* first element */ \ 67aa0a1e58SJeff Roberson } 68aa0a1e58SJeff Roberson 69*bf5cba36SPedro F. Giffuni /* Interval between successive polls in the Tx routine when polling is used 70aa0a1e58SJeff Roberson instead of interrupts (in per-core Tx rings) - should be power of 2 */ 71aa0a1e58SJeff Roberson #define SDP_TX_POLL_MODER 16 72aa0a1e58SJeff Roberson #define SDP_TX_POLL_TIMEOUT (HZ / 20) 73aa0a1e58SJeff Roberson #define SDP_NAGLE_TIMEOUT (HZ / 10) 74aa0a1e58SJeff Roberson 75aa0a1e58SJeff Roberson #define SDP_SRCAVAIL_CANCEL_TIMEOUT (HZ * 5) 76aa0a1e58SJeff Roberson #define SDP_SRCAVAIL_ADV_TIMEOUT (1 * HZ) 77aa0a1e58SJeff Roberson #define SDP_SRCAVAIL_PAYLOAD_LEN 1 78aa0a1e58SJeff Roberson 79aa0a1e58SJeff Roberson #define SDP_RESOLVE_TIMEOUT 1000 80aa0a1e58SJeff Roberson #define SDP_ROUTE_TIMEOUT 1000 81aa0a1e58SJeff Roberson #define SDP_RETRY_COUNT 5 82aa0a1e58SJeff Roberson #define SDP_KEEPALIVE_TIME (120 * 60 * HZ) 83aa0a1e58SJeff Roberson #define SDP_FIN_WAIT_TIMEOUT (60 * HZ) /* like TCP_FIN_TIMEOUT */ 84aa0a1e58SJeff Roberson 85aa0a1e58SJeff Roberson #define SDP_TX_SIZE 0x40 86aa0a1e58SJeff Roberson #define SDP_RX_SIZE 0x40 87aa0a1e58SJeff Roberson 88aa0a1e58SJeff Roberson #define SDP_FMR_SIZE (MIN(0x1000, PAGE_SIZE) / sizeof(u64)) 89aa0a1e58SJeff Roberson #define SDP_FMR_POOL_SIZE 1024 90aa0a1e58SJeff Roberson #define SDP_FMR_DIRTY_SIZE ( SDP_FMR_POOL_SIZE / 4 ) 91aa0a1e58SJeff Roberson 92aa0a1e58SJeff Roberson #define SDP_MAX_RDMA_READ_LEN (PAGE_SIZE * (SDP_FMR_SIZE - 2)) 93aa0a1e58SJeff Roberson 94aa0a1e58SJeff Roberson /* mb inlined data len - rest will be rx'ed into frags */ 95aa0a1e58SJeff Roberson #define SDP_HEAD_SIZE (sizeof(struct sdp_bsdh)) 96aa0a1e58SJeff Roberson 97aa0a1e58SJeff Roberson /* limit tx payload len, if the sink supports bigger buffers than the source 98aa0a1e58SJeff Roberson * can handle. 99aa0a1e58SJeff Roberson * or rx fragment size (limited by sge->length size) */ 100aa0a1e58SJeff Roberson #define SDP_MAX_PACKET (1 << 16) 101aa0a1e58SJeff Roberson #define SDP_MAX_PAYLOAD (SDP_MAX_PACKET - SDP_HEAD_SIZE) 102aa0a1e58SJeff Roberson 103aa0a1e58SJeff Roberson #define SDP_MAX_RECV_SGES (SDP_MAX_PACKET / MCLBYTES) 104aa0a1e58SJeff Roberson #define SDP_MAX_SEND_SGES (SDP_MAX_PACKET / MCLBYTES) + 2 105aa0a1e58SJeff Roberson 106aa0a1e58SJeff Roberson #define SDP_NUM_WC 4 107aa0a1e58SJeff Roberson 108aa0a1e58SJeff Roberson #define SDP_DEF_ZCOPY_THRESH 64*1024 109aa0a1e58SJeff Roberson #define SDP_MIN_ZCOPY_THRESH PAGE_SIZE 110aa0a1e58SJeff Roberson #define SDP_MAX_ZCOPY_THRESH 1048576 111aa0a1e58SJeff Roberson 112aa0a1e58SJeff Roberson #define SDP_OP_RECV 0x800000000LL 113aa0a1e58SJeff Roberson #define SDP_OP_SEND 0x400000000LL 114aa0a1e58SJeff Roberson #define SDP_OP_RDMA 0x200000000LL 115aa0a1e58SJeff Roberson #define SDP_OP_NOP 0x100000000LL 116aa0a1e58SJeff Roberson 117aa0a1e58SJeff Roberson /* how long (in jiffies) to block sender till tx completion*/ 118aa0a1e58SJeff Roberson #define SDP_BZCOPY_POLL_TIMEOUT (HZ / 10) 119aa0a1e58SJeff Roberson 120aa0a1e58SJeff Roberson #define SDP_AUTO_CONF 0xffff 121aa0a1e58SJeff Roberson #define AUTO_MOD_DELAY (HZ / 4) 122aa0a1e58SJeff Roberson 123aa0a1e58SJeff Roberson struct sdp_mb_cb { 124aa0a1e58SJeff Roberson __u32 seq; /* Starting sequence number */ 125aa0a1e58SJeff Roberson struct bzcopy_state *bz; 126aa0a1e58SJeff Roberson struct rx_srcavail_state *rx_sa; 127aa0a1e58SJeff Roberson struct tx_srcavail_state *tx_sa; 128aa0a1e58SJeff Roberson }; 129aa0a1e58SJeff Roberson 130aa0a1e58SJeff Roberson #define M_PUSH M_PROTO1 /* Do a 'push'. */ 131aa0a1e58SJeff Roberson #define M_URG M_PROTO2 /* Mark as urgent (oob). */ 132aa0a1e58SJeff Roberson 133aa0a1e58SJeff Roberson #define SDP_SKB_CB(__mb) ((struct sdp_mb_cb *)&((__mb)->cb[0])) 134aa0a1e58SJeff Roberson #define BZCOPY_STATE(mb) (SDP_SKB_CB(mb)->bz) 135aa0a1e58SJeff Roberson #define RX_SRCAVAIL_STATE(mb) (SDP_SKB_CB(mb)->rx_sa) 136aa0a1e58SJeff Roberson #define TX_SRCAVAIL_STATE(mb) (SDP_SKB_CB(mb)->tx_sa) 137aa0a1e58SJeff Roberson 138aa0a1e58SJeff Roberson #ifndef MIN 139aa0a1e58SJeff Roberson #define MIN(a, b) (a < b ? a : b) 140aa0a1e58SJeff Roberson #endif 141aa0a1e58SJeff Roberson 142aa0a1e58SJeff Roberson #define ring_head(ring) (atomic_read(&(ring).head)) 143aa0a1e58SJeff Roberson #define ring_tail(ring) (atomic_read(&(ring).tail)) 144aa0a1e58SJeff Roberson #define ring_posted(ring) (ring_head(ring) - ring_tail(ring)) 145aa0a1e58SJeff Roberson 146aa0a1e58SJeff Roberson #define rx_ring_posted(ssk) ring_posted(ssk->rx_ring) 147aa0a1e58SJeff Roberson #ifdef SDP_ZCOPY 148aa0a1e58SJeff Roberson #define tx_ring_posted(ssk) (ring_posted(ssk->tx_ring) + \ 149aa0a1e58SJeff Roberson (ssk->tx_ring.rdma_inflight ? ssk->tx_ring.rdma_inflight->busy : 0)) 150aa0a1e58SJeff Roberson #else 151aa0a1e58SJeff Roberson #define tx_ring_posted(ssk) ring_posted(ssk->tx_ring) 152aa0a1e58SJeff Roberson #endif 153aa0a1e58SJeff Roberson 154aa0a1e58SJeff Roberson extern int sdp_zcopy_thresh; 155aa0a1e58SJeff Roberson extern int rcvbuf_initial_size; 156aa0a1e58SJeff Roberson extern struct workqueue_struct *rx_comp_wq; 157aa0a1e58SJeff Roberson extern struct ib_client sdp_client; 158aa0a1e58SJeff Roberson 159aa0a1e58SJeff Roberson enum sdp_mid { 160aa0a1e58SJeff Roberson SDP_MID_HELLO = 0x0, 161aa0a1e58SJeff Roberson SDP_MID_HELLO_ACK = 0x1, 162aa0a1e58SJeff Roberson SDP_MID_DISCONN = 0x2, 163aa0a1e58SJeff Roberson SDP_MID_ABORT = 0x3, 164aa0a1e58SJeff Roberson SDP_MID_SENDSM = 0x4, 165aa0a1e58SJeff Roberson SDP_MID_RDMARDCOMPL = 0x6, 166aa0a1e58SJeff Roberson SDP_MID_SRCAVAIL_CANCEL = 0x8, 167aa0a1e58SJeff Roberson SDP_MID_CHRCVBUF = 0xB, 168aa0a1e58SJeff Roberson SDP_MID_CHRCVBUF_ACK = 0xC, 169aa0a1e58SJeff Roberson SDP_MID_SINKAVAIL = 0xFD, 170aa0a1e58SJeff Roberson SDP_MID_SRCAVAIL = 0xFE, 171aa0a1e58SJeff Roberson SDP_MID_DATA = 0xFF, 172aa0a1e58SJeff Roberson }; 173aa0a1e58SJeff Roberson 174aa0a1e58SJeff Roberson enum sdp_flags { 175aa0a1e58SJeff Roberson SDP_OOB_PRES = 1 << 0, 176aa0a1e58SJeff Roberson SDP_OOB_PEND = 1 << 1, 177aa0a1e58SJeff Roberson }; 178aa0a1e58SJeff Roberson 179aa0a1e58SJeff Roberson enum { 180aa0a1e58SJeff Roberson SDP_MIN_TX_CREDITS = 2 181aa0a1e58SJeff Roberson }; 182aa0a1e58SJeff Roberson 183aa0a1e58SJeff Roberson enum { 184aa0a1e58SJeff Roberson SDP_ERR_ERROR = -4, 185aa0a1e58SJeff Roberson SDP_ERR_FAULT = -3, 186aa0a1e58SJeff Roberson SDP_NEW_SEG = -2, 187aa0a1e58SJeff Roberson SDP_DO_WAIT_MEM = -1 188aa0a1e58SJeff Roberson }; 189aa0a1e58SJeff Roberson 190aa0a1e58SJeff Roberson struct sdp_bsdh { 191aa0a1e58SJeff Roberson u8 mid; 192aa0a1e58SJeff Roberson u8 flags; 193aa0a1e58SJeff Roberson __u16 bufs; 194aa0a1e58SJeff Roberson __u32 len; 195aa0a1e58SJeff Roberson __u32 mseq; 196aa0a1e58SJeff Roberson __u32 mseq_ack; 197aa0a1e58SJeff Roberson } __attribute__((__packed__)); 198aa0a1e58SJeff Roberson 199aa0a1e58SJeff Roberson union cma_ip_addr { 200aa0a1e58SJeff Roberson struct in6_addr ip6; 201aa0a1e58SJeff Roberson struct { 202aa0a1e58SJeff Roberson __u32 pad[3]; 203aa0a1e58SJeff Roberson __u32 addr; 204aa0a1e58SJeff Roberson } ip4; 205aa0a1e58SJeff Roberson } __attribute__((__packed__)); 206aa0a1e58SJeff Roberson 207aa0a1e58SJeff Roberson /* TODO: too much? Can I avoid having the src/dst and port here? */ 208aa0a1e58SJeff Roberson struct sdp_hh { 209aa0a1e58SJeff Roberson struct sdp_bsdh bsdh; 210aa0a1e58SJeff Roberson u8 majv_minv; 211aa0a1e58SJeff Roberson u8 ipv_cap; 212aa0a1e58SJeff Roberson u8 rsvd1; 213aa0a1e58SJeff Roberson u8 max_adverts; 214aa0a1e58SJeff Roberson __u32 desremrcvsz; 215aa0a1e58SJeff Roberson __u32 localrcvsz; 216aa0a1e58SJeff Roberson __u16 port; 217aa0a1e58SJeff Roberson __u16 rsvd2; 218aa0a1e58SJeff Roberson union cma_ip_addr src_addr; 219aa0a1e58SJeff Roberson union cma_ip_addr dst_addr; 220aa0a1e58SJeff Roberson u8 rsvd3[IB_CM_REQ_PRIVATE_DATA_SIZE - sizeof(struct sdp_bsdh) - 48]; 221aa0a1e58SJeff Roberson } __attribute__((__packed__)); 222aa0a1e58SJeff Roberson 223aa0a1e58SJeff Roberson struct sdp_hah { 224aa0a1e58SJeff Roberson struct sdp_bsdh bsdh; 225aa0a1e58SJeff Roberson u8 majv_minv; 226aa0a1e58SJeff Roberson u8 ipv_cap; 227aa0a1e58SJeff Roberson u8 rsvd1; 228aa0a1e58SJeff Roberson u8 ext_max_adverts; 229aa0a1e58SJeff Roberson __u32 actrcvsz; 230aa0a1e58SJeff Roberson u8 rsvd2[IB_CM_REP_PRIVATE_DATA_SIZE - sizeof(struct sdp_bsdh) - 8]; 231aa0a1e58SJeff Roberson } __attribute__((__packed__)); 232aa0a1e58SJeff Roberson 233aa0a1e58SJeff Roberson struct sdp_rrch { 234aa0a1e58SJeff Roberson __u32 len; 235aa0a1e58SJeff Roberson } __attribute__((__packed__)); 236aa0a1e58SJeff Roberson 237aa0a1e58SJeff Roberson struct sdp_srcah { 238aa0a1e58SJeff Roberson __u32 len; 239aa0a1e58SJeff Roberson __u32 rkey; 240aa0a1e58SJeff Roberson __u64 vaddr; 241aa0a1e58SJeff Roberson } __attribute__((__packed__)); 242aa0a1e58SJeff Roberson 243aa0a1e58SJeff Roberson struct sdp_buf { 244aa0a1e58SJeff Roberson struct mbuf *mb; 245aa0a1e58SJeff Roberson u64 mapping[SDP_MAX_SEND_SGES]; 246aa0a1e58SJeff Roberson } __attribute__((__packed__)); 247aa0a1e58SJeff Roberson 248aa0a1e58SJeff Roberson struct sdp_chrecvbuf { 249aa0a1e58SJeff Roberson u32 size; 250aa0a1e58SJeff Roberson } __attribute__((__packed__)); 251aa0a1e58SJeff Roberson 252aa0a1e58SJeff Roberson /* Context used for synchronous zero copy bcopy (BZCOPY) */ 253aa0a1e58SJeff Roberson struct bzcopy_state { 254aa0a1e58SJeff Roberson unsigned char __user *u_base; 255aa0a1e58SJeff Roberson int u_len; 256aa0a1e58SJeff Roberson int left; 257aa0a1e58SJeff Roberson int page_cnt; 258aa0a1e58SJeff Roberson int cur_page; 259aa0a1e58SJeff Roberson int cur_offset; 260aa0a1e58SJeff Roberson int busy; 261aa0a1e58SJeff Roberson struct sdp_sock *ssk; 262aa0a1e58SJeff Roberson struct page **pages; 263aa0a1e58SJeff Roberson }; 264aa0a1e58SJeff Roberson 265aa0a1e58SJeff Roberson enum rx_sa_flag { 266aa0a1e58SJeff Roberson RX_SA_ABORTED = 2, 267aa0a1e58SJeff Roberson }; 268aa0a1e58SJeff Roberson 269aa0a1e58SJeff Roberson enum tx_sa_flag { 270aa0a1e58SJeff Roberson TX_SA_SENDSM = 0x01, 271aa0a1e58SJeff Roberson TX_SA_CROSS_SEND = 0x02, 272aa0a1e58SJeff Roberson TX_SA_INTRRUPTED = 0x04, 273aa0a1e58SJeff Roberson TX_SA_TIMEDOUT = 0x08, 274aa0a1e58SJeff Roberson TX_SA_ERROR = 0x10, 275aa0a1e58SJeff Roberson }; 276aa0a1e58SJeff Roberson 277aa0a1e58SJeff Roberson struct rx_srcavail_state { 278aa0a1e58SJeff Roberson /* Advertised buffer stuff */ 279aa0a1e58SJeff Roberson u32 mseq; 280aa0a1e58SJeff Roberson u32 used; 281aa0a1e58SJeff Roberson u32 reported; 282aa0a1e58SJeff Roberson u32 len; 283aa0a1e58SJeff Roberson u32 rkey; 284aa0a1e58SJeff Roberson u64 vaddr; 285aa0a1e58SJeff Roberson 286aa0a1e58SJeff Roberson /* Dest buff info */ 287aa0a1e58SJeff Roberson struct ib_umem *umem; 288aa0a1e58SJeff Roberson struct ib_pool_fmr *fmr; 289aa0a1e58SJeff Roberson 290aa0a1e58SJeff Roberson /* Utility */ 291aa0a1e58SJeff Roberson u8 busy; 292aa0a1e58SJeff Roberson enum rx_sa_flag flags; 293aa0a1e58SJeff Roberson }; 294aa0a1e58SJeff Roberson 295aa0a1e58SJeff Roberson struct tx_srcavail_state { 296aa0a1e58SJeff Roberson /* Data below 'busy' will be reset */ 297aa0a1e58SJeff Roberson u8 busy; 298aa0a1e58SJeff Roberson 299aa0a1e58SJeff Roberson struct ib_umem *umem; 300aa0a1e58SJeff Roberson struct ib_pool_fmr *fmr; 301aa0a1e58SJeff Roberson 302aa0a1e58SJeff Roberson u32 bytes_sent; 303aa0a1e58SJeff Roberson u32 bytes_acked; 304aa0a1e58SJeff Roberson 305aa0a1e58SJeff Roberson enum tx_sa_flag abort_flags; 306aa0a1e58SJeff Roberson u8 posted; 307aa0a1e58SJeff Roberson 308aa0a1e58SJeff Roberson u32 mseq; 309aa0a1e58SJeff Roberson }; 310aa0a1e58SJeff Roberson 311aa0a1e58SJeff Roberson struct sdp_tx_ring { 312aa0a1e58SJeff Roberson #ifdef SDP_ZCOPY 313aa0a1e58SJeff Roberson struct rx_srcavail_state *rdma_inflight; 314aa0a1e58SJeff Roberson #endif 315aa0a1e58SJeff Roberson struct sdp_buf *buffer; 316aa0a1e58SJeff Roberson atomic_t head; 317aa0a1e58SJeff Roberson atomic_t tail; 318aa0a1e58SJeff Roberson struct ib_cq *cq; 319aa0a1e58SJeff Roberson 320aa0a1e58SJeff Roberson atomic_t credits; 321aa0a1e58SJeff Roberson #define tx_credits(ssk) (atomic_read(&ssk->tx_ring.credits)) 322aa0a1e58SJeff Roberson 323aa0a1e58SJeff Roberson struct callout timer; 324aa0a1e58SJeff Roberson u16 poll_cnt; 325aa0a1e58SJeff Roberson }; 326aa0a1e58SJeff Roberson 327aa0a1e58SJeff Roberson struct sdp_rx_ring { 328aa0a1e58SJeff Roberson struct sdp_buf *buffer; 329aa0a1e58SJeff Roberson atomic_t head; 330aa0a1e58SJeff Roberson atomic_t tail; 331aa0a1e58SJeff Roberson struct ib_cq *cq; 332aa0a1e58SJeff Roberson 333aa0a1e58SJeff Roberson int destroyed; 334aa0a1e58SJeff Roberson struct rwlock destroyed_lock; 335aa0a1e58SJeff Roberson }; 336aa0a1e58SJeff Roberson 337aa0a1e58SJeff Roberson struct sdp_device { 338aa0a1e58SJeff Roberson struct ib_pd *pd; 339aa0a1e58SJeff Roberson struct ib_mr *mr; 340aa0a1e58SJeff Roberson struct ib_fmr_pool *fmr_pool; 341aa0a1e58SJeff Roberson }; 342aa0a1e58SJeff Roberson 343aa0a1e58SJeff Roberson struct sdp_moderation { 344aa0a1e58SJeff Roberson unsigned long last_moder_packets; 345aa0a1e58SJeff Roberson unsigned long last_moder_tx_packets; 346aa0a1e58SJeff Roberson unsigned long last_moder_bytes; 347aa0a1e58SJeff Roberson unsigned long last_moder_jiffies; 348aa0a1e58SJeff Roberson int last_moder_time; 349aa0a1e58SJeff Roberson u16 rx_usecs; 350aa0a1e58SJeff Roberson u16 rx_frames; 351aa0a1e58SJeff Roberson u16 tx_usecs; 352aa0a1e58SJeff Roberson u32 pkt_rate_low; 353aa0a1e58SJeff Roberson u16 rx_usecs_low; 354aa0a1e58SJeff Roberson u32 pkt_rate_high; 355aa0a1e58SJeff Roberson u16 rx_usecs_high; 356aa0a1e58SJeff Roberson u16 sample_interval; 357aa0a1e58SJeff Roberson u16 adaptive_rx_coal; 358aa0a1e58SJeff Roberson u32 msg_enable; 359aa0a1e58SJeff Roberson 360aa0a1e58SJeff Roberson int moder_cnt; 361aa0a1e58SJeff Roberson int moder_time; 362aa0a1e58SJeff Roberson }; 363aa0a1e58SJeff Roberson 364aa0a1e58SJeff Roberson /* These are flags fields. */ 365aa0a1e58SJeff Roberson #define SDP_TIMEWAIT 0x0001 /* In ssk timewait state. */ 366aa0a1e58SJeff Roberson #define SDP_DROPPED 0x0002 /* Socket has been dropped. */ 367aa0a1e58SJeff Roberson #define SDP_SOCKREF 0x0004 /* Holding a sockref for close. */ 368aa0a1e58SJeff Roberson #define SDP_NODELAY 0x0008 /* Disble nagle. */ 369aa0a1e58SJeff Roberson #define SDP_NEEDFIN 0x0010 /* Send a fin on the next tx. */ 370aa0a1e58SJeff Roberson #define SDP_DREQWAIT 0x0020 /* Waiting on DREQ. */ 371aa0a1e58SJeff Roberson #define SDP_DESTROY 0x0040 /* Being destroyed. */ 372aa0a1e58SJeff Roberson #define SDP_DISCON 0x0080 /* rdma_disconnect is owed. */ 373aa0a1e58SJeff Roberson 374aa0a1e58SJeff Roberson /* These are oobflags */ 375aa0a1e58SJeff Roberson #define SDP_HADOOB 0x0001 /* Had OOB data. */ 376aa0a1e58SJeff Roberson #define SDP_HAVEOOB 0x0002 /* Have OOB data. */ 377aa0a1e58SJeff Roberson 378aa0a1e58SJeff Roberson struct sdp_sock { 379aa0a1e58SJeff Roberson LIST_ENTRY(sdp_sock) list; 380aa0a1e58SJeff Roberson struct socket *socket; 381aa0a1e58SJeff Roberson struct rdma_cm_id *id; 382aa0a1e58SJeff Roberson struct ib_device *ib_device; 383aa0a1e58SJeff Roberson struct sdp_device *sdp_dev; 384aa0a1e58SJeff Roberson struct ib_qp *qp; 385aa0a1e58SJeff Roberson struct ucred *cred; 386aa0a1e58SJeff Roberson struct callout keep2msl; /* 2msl and keepalive timer. */ 387aa0a1e58SJeff Roberson struct callout nagle_timer; /* timeout waiting for ack */ 388aa0a1e58SJeff Roberson struct ib_ucontext context; 389aa0a1e58SJeff Roberson in_port_t lport; 390aa0a1e58SJeff Roberson in_addr_t laddr; 391aa0a1e58SJeff Roberson in_port_t fport; 392aa0a1e58SJeff Roberson in_addr_t faddr; 393aa0a1e58SJeff Roberson int flags; 394aa0a1e58SJeff Roberson int oobflags; /* protected by rx lock. */ 395aa0a1e58SJeff Roberson int state; 396aa0a1e58SJeff Roberson int softerror; 397aa0a1e58SJeff Roberson int recv_bytes; /* Bytes per recv. buf including header */ 398aa0a1e58SJeff Roberson int xmit_size_goal; 399aa0a1e58SJeff Roberson char iobc; 400aa0a1e58SJeff Roberson 401aa0a1e58SJeff Roberson struct sdp_rx_ring rx_ring; 402aa0a1e58SJeff Roberson struct sdp_tx_ring tx_ring; 403aa0a1e58SJeff Roberson struct rwlock lock; 404aa0a1e58SJeff Roberson struct mbuf *rx_ctl_q; 405aa0a1e58SJeff Roberson struct mbuf *rx_ctl_tail; 406aa0a1e58SJeff Roberson 407aa0a1e58SJeff Roberson int qp_active; /* XXX Flag. */ 408aa0a1e58SJeff Roberson int max_sge; 409aa0a1e58SJeff Roberson struct work_struct rx_comp_work; 410aa0a1e58SJeff Roberson #define rcv_nxt(ssk) atomic_read(&(ssk->rcv_nxt)) 411aa0a1e58SJeff Roberson atomic_t rcv_nxt; 412aa0a1e58SJeff Roberson 413aa0a1e58SJeff Roberson /* SDP specific */ 414aa0a1e58SJeff Roberson atomic_t mseq_ack; 415aa0a1e58SJeff Roberson #define mseq_ack(ssk) (atomic_read(&ssk->mseq_ack)) 416aa0a1e58SJeff Roberson unsigned max_bufs; /* Initial buffers offered by other side */ 417aa0a1e58SJeff Roberson unsigned min_bufs; /* Low water mark to wake senders */ 418aa0a1e58SJeff Roberson 419aa0a1e58SJeff Roberson unsigned long nagle_last_unacked; /* mseq of lastest unacked packet */ 420aa0a1e58SJeff Roberson 421aa0a1e58SJeff Roberson atomic_t remote_credits; 422aa0a1e58SJeff Roberson #define remote_credits(ssk) (atomic_read(&ssk->remote_credits)) 423aa0a1e58SJeff Roberson int poll_cq; 424aa0a1e58SJeff Roberson 425aa0a1e58SJeff Roberson /* SDP slow start */ 426aa0a1e58SJeff Roberson int recv_request_head; /* mark the rx_head when the resize request 427*bf5cba36SPedro F. Giffuni was received */ 428*bf5cba36SPedro F. Giffuni int recv_request; /* XXX flag if request to resize was received */ 429aa0a1e58SJeff Roberson 430aa0a1e58SJeff Roberson unsigned long tx_packets; 431aa0a1e58SJeff Roberson unsigned long rx_packets; 432aa0a1e58SJeff Roberson unsigned long tx_bytes; 433aa0a1e58SJeff Roberson unsigned long rx_bytes; 434aa0a1e58SJeff Roberson struct sdp_moderation auto_mod; 435aa0a1e58SJeff Roberson struct task shutdown_task; 436aa0a1e58SJeff Roberson #ifdef SDP_ZCOPY 437aa0a1e58SJeff Roberson struct tx_srcavail_state *tx_sa; 438aa0a1e58SJeff Roberson struct rx_srcavail_state *rx_sa; 439aa0a1e58SJeff Roberson spinlock_t tx_sa_lock; 440aa0a1e58SJeff Roberson struct delayed_work srcavail_cancel_work; 441aa0a1e58SJeff Roberson int srcavail_cancel_mseq; 442aa0a1e58SJeff Roberson /* ZCOPY data: -1:use global; 0:disable zcopy; >0: zcopy threshold */ 443aa0a1e58SJeff Roberson int zcopy_thresh; 444aa0a1e58SJeff Roberson #endif 445aa0a1e58SJeff Roberson }; 446aa0a1e58SJeff Roberson 447aa0a1e58SJeff Roberson #define sdp_sk(so) ((struct sdp_sock *)(so->so_pcb)) 448aa0a1e58SJeff Roberson 449aa0a1e58SJeff Roberson #define SDP_RLOCK(ssk) rw_rlock(&(ssk)->lock) 450aa0a1e58SJeff Roberson #define SDP_WLOCK(ssk) rw_wlock(&(ssk)->lock) 451aa0a1e58SJeff Roberson #define SDP_RUNLOCK(ssk) rw_runlock(&(ssk)->lock) 452aa0a1e58SJeff Roberson #define SDP_WUNLOCK(ssk) rw_wunlock(&(ssk)->lock) 453aa0a1e58SJeff Roberson #define SDP_WLOCK_ASSERT(ssk) rw_assert(&(ssk)->lock, RA_WLOCKED) 454aa0a1e58SJeff Roberson #define SDP_RLOCK_ASSERT(ssk) rw_assert(&(ssk)->lock, RA_RLOCKED) 455aa0a1e58SJeff Roberson #define SDP_LOCK_ASSERT(ssk) rw_assert(&(ssk)->lock, RA_LOCKED) 456aa0a1e58SJeff Roberson 457aa0a1e58SJeff Roberson static inline void tx_sa_reset(struct tx_srcavail_state *tx_sa) 458aa0a1e58SJeff Roberson { 459aa0a1e58SJeff Roberson memset((void *)&tx_sa->busy, 0, 460aa0a1e58SJeff Roberson sizeof(*tx_sa) - offsetof(typeof(*tx_sa), busy)); 461aa0a1e58SJeff Roberson } 462aa0a1e58SJeff Roberson 463aa0a1e58SJeff Roberson static inline void rx_ring_unlock(struct sdp_rx_ring *rx_ring) 464aa0a1e58SJeff Roberson { 465aa0a1e58SJeff Roberson rw_runlock(&rx_ring->destroyed_lock); 466aa0a1e58SJeff Roberson } 467aa0a1e58SJeff Roberson 468aa0a1e58SJeff Roberson static inline int rx_ring_trylock(struct sdp_rx_ring *rx_ring) 469aa0a1e58SJeff Roberson { 470aa0a1e58SJeff Roberson rw_rlock(&rx_ring->destroyed_lock); 471aa0a1e58SJeff Roberson if (rx_ring->destroyed) { 472aa0a1e58SJeff Roberson rx_ring_unlock(rx_ring); 473aa0a1e58SJeff Roberson return 0; 474aa0a1e58SJeff Roberson } 475aa0a1e58SJeff Roberson return 1; 476aa0a1e58SJeff Roberson } 477aa0a1e58SJeff Roberson 478aa0a1e58SJeff Roberson static inline void rx_ring_destroy_lock(struct sdp_rx_ring *rx_ring) 479aa0a1e58SJeff Roberson { 480aa0a1e58SJeff Roberson rw_wlock(&rx_ring->destroyed_lock); 481aa0a1e58SJeff Roberson rx_ring->destroyed = 1; 482aa0a1e58SJeff Roberson rw_wunlock(&rx_ring->destroyed_lock); 483aa0a1e58SJeff Roberson } 484aa0a1e58SJeff Roberson 485aa0a1e58SJeff Roberson static inline void sdp_arm_rx_cq(struct sdp_sock *ssk) 486aa0a1e58SJeff Roberson { 487aa0a1e58SJeff Roberson sdp_prf(ssk->socket, NULL, "Arming RX cq"); 488aa0a1e58SJeff Roberson sdp_dbg_data(ssk->socket, "Arming RX cq\n"); 489aa0a1e58SJeff Roberson 490aa0a1e58SJeff Roberson ib_req_notify_cq(ssk->rx_ring.cq, IB_CQ_NEXT_COMP); 491aa0a1e58SJeff Roberson } 492aa0a1e58SJeff Roberson 493aa0a1e58SJeff Roberson static inline void sdp_arm_tx_cq(struct sdp_sock *ssk) 494aa0a1e58SJeff Roberson { 495aa0a1e58SJeff Roberson sdp_prf(ssk->socket, NULL, "Arming TX cq"); 496aa0a1e58SJeff Roberson sdp_dbg_data(ssk->socket, "Arming TX cq. credits: %d, posted: %d\n", 497aa0a1e58SJeff Roberson tx_credits(ssk), tx_ring_posted(ssk)); 498aa0a1e58SJeff Roberson 499aa0a1e58SJeff Roberson ib_req_notify_cq(ssk->tx_ring.cq, IB_CQ_NEXT_COMP); 500aa0a1e58SJeff Roberson } 501aa0a1e58SJeff Roberson 502aa0a1e58SJeff Roberson /* return the min of: 503aa0a1e58SJeff Roberson * - tx credits 504aa0a1e58SJeff Roberson * - free slots in tx_ring (not including SDP_MIN_TX_CREDITS 505aa0a1e58SJeff Roberson */ 506aa0a1e58SJeff Roberson static inline int tx_slots_free(struct sdp_sock *ssk) 507aa0a1e58SJeff Roberson { 508aa0a1e58SJeff Roberson int min_free; 509aa0a1e58SJeff Roberson 510aa0a1e58SJeff Roberson min_free = MIN(tx_credits(ssk), 511aa0a1e58SJeff Roberson SDP_TX_SIZE - tx_ring_posted(ssk)); 512aa0a1e58SJeff Roberson if (min_free < SDP_MIN_TX_CREDITS) 513aa0a1e58SJeff Roberson return 0; 514aa0a1e58SJeff Roberson 515aa0a1e58SJeff Roberson return min_free - SDP_MIN_TX_CREDITS; 516aa0a1e58SJeff Roberson }; 517aa0a1e58SJeff Roberson 518aa0a1e58SJeff Roberson /* utilities */ 519aa0a1e58SJeff Roberson static inline char *mid2str(int mid) 520aa0a1e58SJeff Roberson { 521aa0a1e58SJeff Roberson #define ENUM2STR(e) [e] = #e 522aa0a1e58SJeff Roberson static char *mid2str[] = { 523aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_HELLO), 524aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_HELLO_ACK), 525aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_ABORT), 526aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_DISCONN), 527aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_SENDSM), 528aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_RDMARDCOMPL), 529aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_SRCAVAIL_CANCEL), 530aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_CHRCVBUF), 531aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_CHRCVBUF_ACK), 532aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_DATA), 533aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_SRCAVAIL), 534aa0a1e58SJeff Roberson ENUM2STR(SDP_MID_SINKAVAIL), 535aa0a1e58SJeff Roberson }; 536aa0a1e58SJeff Roberson 537aa0a1e58SJeff Roberson if (mid >= ARRAY_SIZE(mid2str)) 538aa0a1e58SJeff Roberson return NULL; 539aa0a1e58SJeff Roberson 540aa0a1e58SJeff Roberson return mid2str[mid]; 541aa0a1e58SJeff Roberson } 542aa0a1e58SJeff Roberson 543aa0a1e58SJeff Roberson static inline struct mbuf * 544aa0a1e58SJeff Roberson sdp_alloc_mb(struct socket *sk, u8 mid, int size, int wait) 545aa0a1e58SJeff Roberson { 546aa0a1e58SJeff Roberson struct sdp_bsdh *h; 547aa0a1e58SJeff Roberson struct mbuf *mb; 548aa0a1e58SJeff Roberson 549aa0a1e58SJeff Roberson MGETHDR(mb, wait, MT_DATA); 550aa0a1e58SJeff Roberson if (mb == NULL) 551aa0a1e58SJeff Roberson return (NULL); 552aa0a1e58SJeff Roberson mb->m_pkthdr.len = mb->m_len = sizeof(struct sdp_bsdh); 553aa0a1e58SJeff Roberson h = mtod(mb, struct sdp_bsdh *); 554aa0a1e58SJeff Roberson h->mid = mid; 555aa0a1e58SJeff Roberson 556aa0a1e58SJeff Roberson return mb; 557aa0a1e58SJeff Roberson } 558aa0a1e58SJeff Roberson static inline struct mbuf * 559aa0a1e58SJeff Roberson sdp_alloc_mb_data(struct socket *sk, int wait) 560aa0a1e58SJeff Roberson { 561aa0a1e58SJeff Roberson return sdp_alloc_mb(sk, SDP_MID_DATA, 0, wait); 562aa0a1e58SJeff Roberson } 563aa0a1e58SJeff Roberson 564aa0a1e58SJeff Roberson static inline struct mbuf * 565aa0a1e58SJeff Roberson sdp_alloc_mb_disconnect(struct socket *sk, int wait) 566aa0a1e58SJeff Roberson { 567aa0a1e58SJeff Roberson return sdp_alloc_mb(sk, SDP_MID_DISCONN, 0, wait); 568aa0a1e58SJeff Roberson } 569aa0a1e58SJeff Roberson 570aa0a1e58SJeff Roberson static inline void * 571aa0a1e58SJeff Roberson mb_put(struct mbuf *mb, int len) 572aa0a1e58SJeff Roberson { 573aa0a1e58SJeff Roberson uint8_t *data; 574aa0a1e58SJeff Roberson 575aa0a1e58SJeff Roberson data = mb->m_data; 576aa0a1e58SJeff Roberson data += mb->m_len; 577aa0a1e58SJeff Roberson mb->m_len += len; 578aa0a1e58SJeff Roberson return (void *)data; 579aa0a1e58SJeff Roberson } 580aa0a1e58SJeff Roberson 581aa0a1e58SJeff Roberson static inline struct mbuf * 582aa0a1e58SJeff Roberson sdp_alloc_mb_chrcvbuf_ack(struct socket *sk, int size, int wait) 583aa0a1e58SJeff Roberson { 584aa0a1e58SJeff Roberson struct mbuf *mb; 585aa0a1e58SJeff Roberson struct sdp_chrecvbuf *resp_size; 586aa0a1e58SJeff Roberson 587aa0a1e58SJeff Roberson mb = sdp_alloc_mb(sk, SDP_MID_CHRCVBUF_ACK, sizeof(*resp_size), wait); 588aa0a1e58SJeff Roberson if (mb == NULL) 589aa0a1e58SJeff Roberson return (NULL); 590aa0a1e58SJeff Roberson resp_size = (struct sdp_chrecvbuf *)mb_put(mb, sizeof *resp_size); 591aa0a1e58SJeff Roberson resp_size->size = htonl(size); 592aa0a1e58SJeff Roberson 593aa0a1e58SJeff Roberson return mb; 594aa0a1e58SJeff Roberson } 595aa0a1e58SJeff Roberson 596aa0a1e58SJeff Roberson static inline struct mbuf * 597aa0a1e58SJeff Roberson sdp_alloc_mb_srcavail(struct socket *sk, u32 len, u32 rkey, u64 vaddr, int wait) 598aa0a1e58SJeff Roberson { 599aa0a1e58SJeff Roberson struct mbuf *mb; 600aa0a1e58SJeff Roberson struct sdp_srcah *srcah; 601aa0a1e58SJeff Roberson 602aa0a1e58SJeff Roberson mb = sdp_alloc_mb(sk, SDP_MID_SRCAVAIL, sizeof(*srcah), wait); 603aa0a1e58SJeff Roberson if (mb == NULL) 604aa0a1e58SJeff Roberson return (NULL); 605aa0a1e58SJeff Roberson srcah = (struct sdp_srcah *)mb_put(mb, sizeof(*srcah)); 606aa0a1e58SJeff Roberson srcah->len = htonl(len); 607aa0a1e58SJeff Roberson srcah->rkey = htonl(rkey); 608aa0a1e58SJeff Roberson srcah->vaddr = cpu_to_be64(vaddr); 609aa0a1e58SJeff Roberson 610aa0a1e58SJeff Roberson return mb; 611aa0a1e58SJeff Roberson } 612aa0a1e58SJeff Roberson 613aa0a1e58SJeff Roberson static inline struct mbuf * 614aa0a1e58SJeff Roberson sdp_alloc_mb_srcavail_cancel(struct socket *sk, int wait) 615aa0a1e58SJeff Roberson { 616aa0a1e58SJeff Roberson return sdp_alloc_mb(sk, SDP_MID_SRCAVAIL_CANCEL, 0, wait); 617aa0a1e58SJeff Roberson } 618aa0a1e58SJeff Roberson 619aa0a1e58SJeff Roberson static inline struct mbuf * 620aa0a1e58SJeff Roberson sdp_alloc_mb_rdmardcompl(struct socket *sk, u32 len, int wait) 621aa0a1e58SJeff Roberson { 622aa0a1e58SJeff Roberson struct mbuf *mb; 623aa0a1e58SJeff Roberson struct sdp_rrch *rrch; 624aa0a1e58SJeff Roberson 625aa0a1e58SJeff Roberson mb = sdp_alloc_mb(sk, SDP_MID_RDMARDCOMPL, sizeof(*rrch), wait); 626aa0a1e58SJeff Roberson if (mb == NULL) 627aa0a1e58SJeff Roberson return (NULL); 628aa0a1e58SJeff Roberson rrch = (struct sdp_rrch *)mb_put(mb, sizeof(*rrch)); 629aa0a1e58SJeff Roberson rrch->len = htonl(len); 630aa0a1e58SJeff Roberson 631aa0a1e58SJeff Roberson return mb; 632aa0a1e58SJeff Roberson } 633aa0a1e58SJeff Roberson 634aa0a1e58SJeff Roberson static inline struct mbuf * 635aa0a1e58SJeff Roberson sdp_alloc_mb_sendsm(struct socket *sk, int wait) 636aa0a1e58SJeff Roberson { 637aa0a1e58SJeff Roberson return sdp_alloc_mb(sk, SDP_MID_SENDSM, 0, wait); 638aa0a1e58SJeff Roberson } 639aa0a1e58SJeff Roberson static inline int sdp_tx_ring_slots_left(struct sdp_sock *ssk) 640aa0a1e58SJeff Roberson { 641aa0a1e58SJeff Roberson return SDP_TX_SIZE - tx_ring_posted(ssk); 642aa0a1e58SJeff Roberson } 643aa0a1e58SJeff Roberson 644aa0a1e58SJeff Roberson static inline int credit_update_needed(struct sdp_sock *ssk) 645aa0a1e58SJeff Roberson { 646aa0a1e58SJeff Roberson int c; 647aa0a1e58SJeff Roberson 648aa0a1e58SJeff Roberson c = remote_credits(ssk); 649aa0a1e58SJeff Roberson if (likely(c > SDP_MIN_TX_CREDITS)) 650aa0a1e58SJeff Roberson c += c/2; 651aa0a1e58SJeff Roberson return unlikely(c < rx_ring_posted(ssk)) && 652aa0a1e58SJeff Roberson likely(tx_credits(ssk) > 0) && 653aa0a1e58SJeff Roberson likely(sdp_tx_ring_slots_left(ssk)); 654aa0a1e58SJeff Roberson } 655aa0a1e58SJeff Roberson 656aa0a1e58SJeff Roberson 657aa0a1e58SJeff Roberson #define SDPSTATS_COUNTER_INC(stat) 658aa0a1e58SJeff Roberson #define SDPSTATS_COUNTER_ADD(stat, val) 659aa0a1e58SJeff Roberson #define SDPSTATS_COUNTER_MID_INC(stat, mid) 660aa0a1e58SJeff Roberson #define SDPSTATS_HIST_LINEAR(stat, size) 661aa0a1e58SJeff Roberson #define SDPSTATS_HIST(stat, size) 662aa0a1e58SJeff Roberson 663aa0a1e58SJeff Roberson static inline void 664aa0a1e58SJeff Roberson sdp_cleanup_sdp_buf(struct sdp_sock *ssk, struct sdp_buf *sbuf, 665aa0a1e58SJeff Roberson enum dma_data_direction dir) 666aa0a1e58SJeff Roberson { 667aa0a1e58SJeff Roberson struct ib_device *dev; 668aa0a1e58SJeff Roberson struct mbuf *mb; 669aa0a1e58SJeff Roberson int i; 670aa0a1e58SJeff Roberson 671aa0a1e58SJeff Roberson dev = ssk->ib_device; 672aa0a1e58SJeff Roberson for (i = 0, mb = sbuf->mb; mb != NULL; mb = mb->m_next, i++) 673aa0a1e58SJeff Roberson ib_dma_unmap_single(dev, sbuf->mapping[i], mb->m_len, dir); 674aa0a1e58SJeff Roberson } 675aa0a1e58SJeff Roberson 676aa0a1e58SJeff Roberson /* sdp_main.c */ 677aa0a1e58SJeff Roberson void sdp_set_default_moderation(struct sdp_sock *ssk); 678aa0a1e58SJeff Roberson void sdp_start_keepalive_timer(struct socket *sk); 679aa0a1e58SJeff Roberson void sdp_urg(struct sdp_sock *ssk, struct mbuf *mb); 680aa0a1e58SJeff Roberson void sdp_cancel_dreq_wait_timeout(struct sdp_sock *ssk); 681aa0a1e58SJeff Roberson void sdp_abort(struct socket *sk); 682aa0a1e58SJeff Roberson struct sdp_sock *sdp_notify(struct sdp_sock *ssk, int error); 683aa0a1e58SJeff Roberson 684aa0a1e58SJeff Roberson 685aa0a1e58SJeff Roberson /* sdp_cma.c */ 686aa0a1e58SJeff Roberson int sdp_cma_handler(struct rdma_cm_id *, struct rdma_cm_event *); 687aa0a1e58SJeff Roberson 688aa0a1e58SJeff Roberson /* sdp_tx.c */ 689aa0a1e58SJeff Roberson int sdp_tx_ring_create(struct sdp_sock *ssk, struct ib_device *device); 690aa0a1e58SJeff Roberson void sdp_tx_ring_destroy(struct sdp_sock *ssk); 691aa0a1e58SJeff Roberson int sdp_xmit_poll(struct sdp_sock *ssk, int force); 692aa0a1e58SJeff Roberson void sdp_post_send(struct sdp_sock *ssk, struct mbuf *mb); 693aa0a1e58SJeff Roberson void sdp_post_sends(struct sdp_sock *ssk, int wait); 694aa0a1e58SJeff Roberson void sdp_post_keepalive(struct sdp_sock *ssk); 695aa0a1e58SJeff Roberson 696aa0a1e58SJeff Roberson /* sdp_rx.c */ 697aa0a1e58SJeff Roberson void sdp_rx_ring_init(struct sdp_sock *ssk); 698aa0a1e58SJeff Roberson int sdp_rx_ring_create(struct sdp_sock *ssk, struct ib_device *device); 699aa0a1e58SJeff Roberson void sdp_rx_ring_destroy(struct sdp_sock *ssk); 700aa0a1e58SJeff Roberson int sdp_resize_buffers(struct sdp_sock *ssk, u32 new_size); 701aa0a1e58SJeff Roberson int sdp_init_buffers(struct sdp_sock *ssk, u32 new_size); 702aa0a1e58SJeff Roberson void sdp_do_posts(struct sdp_sock *ssk); 703aa0a1e58SJeff Roberson void sdp_rx_comp_full(struct sdp_sock *ssk); 704aa0a1e58SJeff Roberson 705aa0a1e58SJeff Roberson /* sdp_zcopy.c */ 706a1081609SBjoern A. Zeeb struct kiocb; 707aa0a1e58SJeff Roberson int sdp_sendmsg_zcopy(struct kiocb *iocb, struct socket *sk, struct iovec *iov); 708aa0a1e58SJeff Roberson int sdp_handle_srcavail(struct sdp_sock *ssk, struct sdp_srcah *srcah); 709aa0a1e58SJeff Roberson void sdp_handle_sendsm(struct sdp_sock *ssk, u32 mseq_ack); 710aa0a1e58SJeff Roberson void sdp_handle_rdma_read_compl(struct sdp_sock *ssk, u32 mseq_ack, 711aa0a1e58SJeff Roberson u32 bytes_completed); 712aa0a1e58SJeff Roberson int sdp_handle_rdma_read_cqe(struct sdp_sock *ssk); 713aa0a1e58SJeff Roberson int sdp_rdma_to_iovec(struct socket *sk, struct iovec *iov, struct mbuf *mb, 714aa0a1e58SJeff Roberson unsigned long *used); 715aa0a1e58SJeff Roberson int sdp_post_rdma_rd_compl(struct sdp_sock *ssk, 716aa0a1e58SJeff Roberson struct rx_srcavail_state *rx_sa); 717aa0a1e58SJeff Roberson int sdp_post_sendsm(struct socket *sk); 718aa0a1e58SJeff Roberson void srcavail_cancel_timeout(struct work_struct *work); 719aa0a1e58SJeff Roberson void sdp_abort_srcavail(struct socket *sk); 720aa0a1e58SJeff Roberson void sdp_abort_rdma_read(struct socket *sk); 721aa0a1e58SJeff Roberson int sdp_process_rx(struct sdp_sock *ssk); 722aa0a1e58SJeff Roberson 723aa0a1e58SJeff Roberson #endif 724