1 /* SPDX-License-Identifier: GPL-2.0-only */ 2 /* 3 * Copyright (c) 2018 Chelsio Communications, Inc. 4 */ 5 6 #ifndef __CHTLS_H__ 7 #define __CHTLS_H__ 8 9 #include <crypto/aes.h> 10 #include <crypto/algapi.h> 11 #include <crypto/hash.h> 12 #include <crypto/sha.h> 13 #include <crypto/authenc.h> 14 #include <crypto/ctr.h> 15 #include <crypto/gf128mul.h> 16 #include <crypto/internal/aead.h> 17 #include <crypto/null.h> 18 #include <crypto/internal/skcipher.h> 19 #include <crypto/aead.h> 20 #include <crypto/scatterwalk.h> 21 #include <crypto/internal/hash.h> 22 #include <linux/tls.h> 23 #include <net/tls.h> 24 #include <net/tls_toe.h> 25 26 #include "t4fw_api.h" 27 #include "t4_msg.h" 28 #include "cxgb4.h" 29 #include "cxgb4_uld.h" 30 #include "l2t.h" 31 #include "chcr_algo.h" 32 #include "chcr_core.h" 33 #include "chcr_crypto.h" 34 35 #define CHTLS_DRV_VERSION "1.0.0.0-ko" 36 37 #define TLS_KEYCTX_RXFLIT_CNT_S 24 38 #define TLS_KEYCTX_RXFLIT_CNT_V(x) ((x) << TLS_KEYCTX_RXFLIT_CNT_S) 39 40 #define TLS_KEYCTX_RXPROT_VER_S 20 41 #define TLS_KEYCTX_RXPROT_VER_M 0xf 42 #define TLS_KEYCTX_RXPROT_VER_V(x) ((x) << TLS_KEYCTX_RXPROT_VER_S) 43 44 #define TLS_KEYCTX_RXCIPH_MODE_S 16 45 #define TLS_KEYCTX_RXCIPH_MODE_M 0xf 46 #define TLS_KEYCTX_RXCIPH_MODE_V(x) ((x) << TLS_KEYCTX_RXCIPH_MODE_S) 47 48 #define TLS_KEYCTX_RXAUTH_MODE_S 12 49 #define TLS_KEYCTX_RXAUTH_MODE_M 0xf 50 #define TLS_KEYCTX_RXAUTH_MODE_V(x) ((x) << TLS_KEYCTX_RXAUTH_MODE_S) 51 52 #define TLS_KEYCTX_RXCIAU_CTRL_S 11 53 #define TLS_KEYCTX_RXCIAU_CTRL_V(x) ((x) << TLS_KEYCTX_RXCIAU_CTRL_S) 54 55 #define TLS_KEYCTX_RX_SEQCTR_S 9 56 #define TLS_KEYCTX_RX_SEQCTR_M 0x3 57 #define TLS_KEYCTX_RX_SEQCTR_V(x) ((x) << TLS_KEYCTX_RX_SEQCTR_S) 58 59 #define TLS_KEYCTX_RX_VALID_S 8 60 #define TLS_KEYCTX_RX_VALID_V(x) ((x) << TLS_KEYCTX_RX_VALID_S) 61 62 #define TLS_KEYCTX_RXCK_SIZE_S 3 63 #define TLS_KEYCTX_RXCK_SIZE_M 0x7 64 #define TLS_KEYCTX_RXCK_SIZE_V(x) ((x) << TLS_KEYCTX_RXCK_SIZE_S) 65 66 #define TLS_KEYCTX_RXMK_SIZE_S 0 67 #define TLS_KEYCTX_RXMK_SIZE_M 0x7 68 #define TLS_KEYCTX_RXMK_SIZE_V(x) ((x) << TLS_KEYCTX_RXMK_SIZE_S) 69 70 #define KEYCTX_TX_WR_IV_S 55 71 #define KEYCTX_TX_WR_IV_M 0x1ffULL 72 #define KEYCTX_TX_WR_IV_V(x) ((x) << KEYCTX_TX_WR_IV_S) 73 #define KEYCTX_TX_WR_IV_G(x) \ 74 (((x) >> KEYCTX_TX_WR_IV_S) & KEYCTX_TX_WR_IV_M) 75 76 #define KEYCTX_TX_WR_AAD_S 47 77 #define KEYCTX_TX_WR_AAD_M 0xffULL 78 #define KEYCTX_TX_WR_AAD_V(x) ((x) << KEYCTX_TX_WR_AAD_S) 79 #define KEYCTX_TX_WR_AAD_G(x) (((x) >> KEYCTX_TX_WR_AAD_S) & \ 80 KEYCTX_TX_WR_AAD_M) 81 82 #define KEYCTX_TX_WR_AADST_S 39 83 #define KEYCTX_TX_WR_AADST_M 0xffULL 84 #define KEYCTX_TX_WR_AADST_V(x) ((x) << KEYCTX_TX_WR_AADST_S) 85 #define KEYCTX_TX_WR_AADST_G(x) \ 86 (((x) >> KEYCTX_TX_WR_AADST_S) & KEYCTX_TX_WR_AADST_M) 87 88 #define KEYCTX_TX_WR_CIPHER_S 30 89 #define KEYCTX_TX_WR_CIPHER_M 0x1ffULL 90 #define KEYCTX_TX_WR_CIPHER_V(x) ((x) << KEYCTX_TX_WR_CIPHER_S) 91 #define KEYCTX_TX_WR_CIPHER_G(x) \ 92 (((x) >> KEYCTX_TX_WR_CIPHER_S) & KEYCTX_TX_WR_CIPHER_M) 93 94 #define KEYCTX_TX_WR_CIPHERST_S 23 95 #define KEYCTX_TX_WR_CIPHERST_M 0x7f 96 #define KEYCTX_TX_WR_CIPHERST_V(x) ((x) << KEYCTX_TX_WR_CIPHERST_S) 97 #define KEYCTX_TX_WR_CIPHERST_G(x) \ 98 (((x) >> KEYCTX_TX_WR_CIPHERST_S) & KEYCTX_TX_WR_CIPHERST_M) 99 100 #define KEYCTX_TX_WR_AUTH_S 14 101 #define KEYCTX_TX_WR_AUTH_M 0x1ff 102 #define KEYCTX_TX_WR_AUTH_V(x) ((x) << KEYCTX_TX_WR_AUTH_S) 103 #define KEYCTX_TX_WR_AUTH_G(x) \ 104 (((x) >> KEYCTX_TX_WR_AUTH_S) & KEYCTX_TX_WR_AUTH_M) 105 106 #define KEYCTX_TX_WR_AUTHST_S 7 107 #define KEYCTX_TX_WR_AUTHST_M 0x7f 108 #define KEYCTX_TX_WR_AUTHST_V(x) ((x) << KEYCTX_TX_WR_AUTHST_S) 109 #define KEYCTX_TX_WR_AUTHST_G(x) \ 110 (((x) >> KEYCTX_TX_WR_AUTHST_S) & KEYCTX_TX_WR_AUTHST_M) 111 112 #define KEYCTX_TX_WR_AUTHIN_S 0 113 #define KEYCTX_TX_WR_AUTHIN_M 0x7f 114 #define KEYCTX_TX_WR_AUTHIN_V(x) ((x) << KEYCTX_TX_WR_AUTHIN_S) 115 #define KEYCTX_TX_WR_AUTHIN_G(x) \ 116 (((x) >> KEYCTX_TX_WR_AUTHIN_S) & KEYCTX_TX_WR_AUTHIN_M) 117 118 struct sge_opaque_hdr { 119 void *dev; 120 dma_addr_t addr[MAX_SKB_FRAGS + 1]; 121 }; 122 123 #define MAX_IVS_PAGE 256 124 #define TLS_KEY_CONTEXT_SZ 64 125 #define CIPHER_BLOCK_SIZE 16 126 #define GCM_TAG_SIZE 16 127 #define KEY_ON_MEM_SZ 16 128 #define AEAD_EXPLICIT_DATA_SIZE 8 129 #define TLS_HEADER_LENGTH 5 130 #define SCMD_CIPH_MODE_AES_GCM 2 131 /* Any MFS size should work and come from openssl */ 132 #define TLS_MFS 16384 133 134 #define RSS_HDR sizeof(struct rss_header) 135 #define TLS_WR_CPL_LEN \ 136 (sizeof(struct fw_tlstx_data_wr) + sizeof(struct cpl_tx_tls_sfo)) 137 138 enum { 139 CHTLS_KEY_CONTEXT_DSGL, 140 CHTLS_KEY_CONTEXT_IMM, 141 CHTLS_KEY_CONTEXT_DDR, 142 }; 143 144 enum { 145 CHTLS_LISTEN_START, 146 CHTLS_LISTEN_STOP, 147 }; 148 149 /* Flags for return value of CPL message handlers */ 150 enum { 151 CPL_RET_BUF_DONE = 1, /* buffer processing done */ 152 CPL_RET_BAD_MSG = 2, /* bad CPL message */ 153 CPL_RET_UNKNOWN_TID = 4 /* unexpected unknown TID */ 154 }; 155 156 #define LISTEN_INFO_HASH_SIZE 32 157 #define RSPQ_HASH_BITS 5 158 struct listen_info { 159 struct listen_info *next; /* Link to next entry */ 160 struct sock *sk; /* The listening socket */ 161 unsigned int stid; /* The server TID */ 162 }; 163 164 enum { 165 T4_LISTEN_START_PENDING, 166 T4_LISTEN_STARTED 167 }; 168 169 enum csk_flags { 170 CSK_CALLBACKS_CHKD, /* socket callbacks have been sanitized */ 171 CSK_ABORT_REQ_RCVD, /* received one ABORT_REQ_RSS message */ 172 CSK_TX_MORE_DATA, /* sending ULP data; don't set SHOVE bit */ 173 CSK_TX_WAIT_IDLE, /* suspend Tx until in-flight data is ACKed */ 174 CSK_ABORT_SHUTDOWN, /* shouldn't send more abort requests */ 175 CSK_ABORT_RPL_PENDING, /* expecting an abort reply */ 176 CSK_CLOSE_CON_REQUESTED,/* we've sent a close_conn_req */ 177 CSK_TX_DATA_SENT, /* sent a TX_DATA WR on this connection */ 178 CSK_TX_FAILOVER, /* Tx traffic failing over */ 179 CSK_UPDATE_RCV_WND, /* Need to update rcv window */ 180 CSK_RST_ABORTED, /* outgoing RST was aborted */ 181 CSK_TLS_HANDSHK, /* TLS Handshake */ 182 CSK_CONN_INLINE, /* Connection on HW */ 183 }; 184 185 enum chtls_cdev_state { 186 CHTLS_CDEV_STATE_UP = 1 187 }; 188 189 struct listen_ctx { 190 struct sock *lsk; 191 struct chtls_dev *cdev; 192 struct sk_buff_head synq; 193 u32 state; 194 }; 195 196 struct key_map { 197 unsigned long *addr; 198 unsigned int start; 199 unsigned int available; 200 unsigned int size; 201 spinlock_t lock; /* lock for key id request from map */ 202 } __packed; 203 204 struct tls_scmd { 205 u32 seqno_numivs; 206 u32 ivgen_hdrlen; 207 }; 208 209 struct chtls_dev { 210 struct tls_toe_device tlsdev; 211 struct list_head list; 212 struct cxgb4_lld_info *lldi; 213 struct pci_dev *pdev; 214 struct listen_info *listen_hash_tab[LISTEN_INFO_HASH_SIZE]; 215 spinlock_t listen_lock; /* lock for listen list */ 216 struct net_device **ports; 217 struct tid_info *tids; 218 unsigned int pfvf; 219 const unsigned short *mtus; 220 221 struct idr hwtid_idr; 222 struct idr stid_idr; 223 224 spinlock_t idr_lock ____cacheline_aligned_in_smp; 225 226 struct net_device *egr_dev[NCHAN * 2]; 227 struct sk_buff *rspq_skb_cache[1 << RSPQ_HASH_BITS]; 228 struct sk_buff *askb; 229 230 struct sk_buff_head deferq; 231 struct work_struct deferq_task; 232 233 struct list_head list_node; 234 struct list_head rcu_node; 235 struct list_head na_node; 236 unsigned int send_page_order; 237 int max_host_sndbuf; 238 u32 round_robin_cnt; 239 struct key_map kmap; 240 unsigned int cdev_state; 241 }; 242 243 struct chtls_listen { 244 struct chtls_dev *cdev; 245 struct sock *sk; 246 }; 247 248 struct chtls_hws { 249 struct sk_buff_head sk_recv_queue; 250 u8 txqid; 251 u8 ofld; 252 u16 type; 253 u16 rstate; 254 u16 keyrpl; 255 u16 pldlen; 256 u16 rcvpld; 257 u16 compute; 258 u16 expansion; 259 u16 keylen; 260 u16 pdus; 261 u16 adjustlen; 262 u16 ivsize; 263 u16 txleft; 264 u32 mfs; 265 s32 txkey; 266 s32 rxkey; 267 u32 fcplenmax; 268 u32 copied_seq; 269 u64 tx_seq_no; 270 struct tls_scmd scmd; 271 union { 272 struct tls12_crypto_info_aes_gcm_128 aes_gcm_128; 273 struct tls12_crypto_info_aes_gcm_256 aes_gcm_256; 274 } crypto_info; 275 }; 276 277 struct chtls_sock { 278 struct sock *sk; 279 struct chtls_dev *cdev; 280 struct l2t_entry *l2t_entry; /* pointer to the L2T entry */ 281 struct net_device *egress_dev; /* TX_CHAN for act open retry */ 282 283 struct sk_buff_head txq; 284 struct sk_buff *wr_skb_head; 285 struct sk_buff *wr_skb_tail; 286 struct sk_buff *ctrl_skb_cache; 287 struct sk_buff *txdata_skb_cache; /* abort path messages */ 288 struct kref kref; 289 unsigned long flags; 290 u32 opt2; 291 u32 wr_credits; 292 u32 wr_unacked; 293 u32 wr_max_credits; 294 u32 wr_nondata; 295 u32 hwtid; /* TCP Control Block ID */ 296 u32 txq_idx; 297 u32 rss_qid; 298 u32 tid; 299 u32 idr; 300 u32 mss; 301 u32 ulp_mode; 302 u32 tx_chan; 303 u32 rx_chan; 304 u32 sndbuf; 305 u32 txplen_max; 306 u32 mtu_idx; /* MTU table index */ 307 u32 smac_idx; 308 u8 port_id; 309 u8 tos; 310 u16 resv2; 311 u32 delack_mode; 312 u32 delack_seq; 313 u32 snd_win; 314 u32 rcv_win; 315 316 void *passive_reap_next; /* placeholder for passive */ 317 struct chtls_hws tlshws; 318 struct synq { 319 struct sk_buff *next; 320 struct sk_buff *prev; 321 } synq; 322 struct listen_ctx *listen_ctx; 323 }; 324 325 struct tls_hdr { 326 u8 type; 327 u16 version; 328 u16 length; 329 } __packed; 330 331 struct tlsrx_cmp_hdr { 332 u8 type; 333 u16 version; 334 u16 length; 335 336 u64 tls_seq; 337 u16 reserved1; 338 u8 res_to_mac_error; 339 } __packed; 340 341 /* res_to_mac_error fields */ 342 #define TLSRX_HDR_PKT_INT_ERROR_S 4 343 #define TLSRX_HDR_PKT_INT_ERROR_M 0x1 344 #define TLSRX_HDR_PKT_INT_ERROR_V(x) \ 345 ((x) << TLSRX_HDR_PKT_INT_ERROR_S) 346 #define TLSRX_HDR_PKT_INT_ERROR_G(x) \ 347 (((x) >> TLSRX_HDR_PKT_INT_ERROR_S) & TLSRX_HDR_PKT_INT_ERROR_M) 348 #define TLSRX_HDR_PKT_INT_ERROR_F TLSRX_HDR_PKT_INT_ERROR_V(1U) 349 350 #define TLSRX_HDR_PKT_SPP_ERROR_S 3 351 #define TLSRX_HDR_PKT_SPP_ERROR_M 0x1 352 #define TLSRX_HDR_PKT_SPP_ERROR_V(x) ((x) << TLSRX_HDR_PKT_SPP_ERROR) 353 #define TLSRX_HDR_PKT_SPP_ERROR_G(x) \ 354 (((x) >> TLSRX_HDR_PKT_SPP_ERROR_S) & TLSRX_HDR_PKT_SPP_ERROR_M) 355 #define TLSRX_HDR_PKT_SPP_ERROR_F TLSRX_HDR_PKT_SPP_ERROR_V(1U) 356 357 #define TLSRX_HDR_PKT_CCDX_ERROR_S 2 358 #define TLSRX_HDR_PKT_CCDX_ERROR_M 0x1 359 #define TLSRX_HDR_PKT_CCDX_ERROR_V(x) ((x) << TLSRX_HDR_PKT_CCDX_ERROR_S) 360 #define TLSRX_HDR_PKT_CCDX_ERROR_G(x) \ 361 (((x) >> TLSRX_HDR_PKT_CCDX_ERROR_S) & TLSRX_HDR_PKT_CCDX_ERROR_M) 362 #define TLSRX_HDR_PKT_CCDX_ERROR_F TLSRX_HDR_PKT_CCDX_ERROR_V(1U) 363 364 #define TLSRX_HDR_PKT_PAD_ERROR_S 1 365 #define TLSRX_HDR_PKT_PAD_ERROR_M 0x1 366 #define TLSRX_HDR_PKT_PAD_ERROR_V(x) ((x) << TLSRX_HDR_PKT_PAD_ERROR_S) 367 #define TLSRX_HDR_PKT_PAD_ERROR_G(x) \ 368 (((x) >> TLSRX_HDR_PKT_PAD_ERROR_S) & TLSRX_HDR_PKT_PAD_ERROR_M) 369 #define TLSRX_HDR_PKT_PAD_ERROR_F TLSRX_HDR_PKT_PAD_ERROR_V(1U) 370 371 #define TLSRX_HDR_PKT_MAC_ERROR_S 0 372 #define TLSRX_HDR_PKT_MAC_ERROR_M 0x1 373 #define TLSRX_HDR_PKT_MAC_ERROR_V(x) ((x) << TLSRX_HDR_PKT_MAC_ERROR) 374 #define TLSRX_HDR_PKT_MAC_ERROR_G(x) \ 375 (((x) >> S_TLSRX_HDR_PKT_MAC_ERROR_S) & TLSRX_HDR_PKT_MAC_ERROR_M) 376 #define TLSRX_HDR_PKT_MAC_ERROR_F TLSRX_HDR_PKT_MAC_ERROR_V(1U) 377 378 #define TLSRX_HDR_PKT_ERROR_M 0x1F 379 #define CONTENT_TYPE_ERROR 0x7F 380 381 struct ulp_mem_rw { 382 __be32 cmd; 383 __be32 len16; /* command length */ 384 __be32 dlen; /* data length in 32-byte units */ 385 __be32 lock_addr; 386 }; 387 388 struct tls_key_wr { 389 __be32 op_to_compl; 390 __be32 flowid_len16; 391 __be32 ftid; 392 u8 reneg_to_write_rx; 393 u8 protocol; 394 __be16 mfs; 395 }; 396 397 struct tls_key_req { 398 struct tls_key_wr wr; 399 struct ulp_mem_rw req; 400 struct ulptx_idata sc_imm; 401 }; 402 403 /* 404 * This lives in skb->cb and is used to chain WRs in a linked list. 405 */ 406 struct wr_skb_cb { 407 struct l2t_skb_cb l2t; /* reserve space for l2t CB */ 408 struct sk_buff *next_wr; /* next write request */ 409 }; 410 411 /* Per-skb backlog handler. Run when a socket's backlog is processed. */ 412 struct blog_skb_cb { 413 void (*backlog_rcv)(struct sock *sk, struct sk_buff *skb); 414 struct chtls_dev *cdev; 415 }; 416 417 /* 418 * Similar to tcp_skb_cb but with ULP elements added to support TLS, 419 * etc. 420 */ 421 struct ulp_skb_cb { 422 struct wr_skb_cb wr; /* reserve space for write request */ 423 u16 flags; /* TCP-like flags */ 424 u8 psh; 425 u8 ulp_mode; /* ULP mode/submode of sk_buff */ 426 u32 seq; /* TCP sequence number */ 427 union { /* ULP-specific fields */ 428 struct { 429 u8 type; 430 u8 ofld; 431 u8 iv; 432 } tls; 433 } ulp; 434 }; 435 436 #define ULP_SKB_CB(skb) ((struct ulp_skb_cb *)&((skb)->cb[0])) 437 #define BLOG_SKB_CB(skb) ((struct blog_skb_cb *)(skb)->cb) 438 439 /* 440 * Flags for ulp_skb_cb.flags. 441 */ 442 enum { 443 ULPCB_FLAG_NEED_HDR = 1 << 0, /* packet needs a TX_DATA_WR header */ 444 ULPCB_FLAG_NO_APPEND = 1 << 1, /* don't grow this skb */ 445 ULPCB_FLAG_BARRIER = 1 << 2, /* set TX_WAIT_IDLE after sending */ 446 ULPCB_FLAG_HOLD = 1 << 3, /* skb not ready for Tx yet */ 447 ULPCB_FLAG_COMPL = 1 << 4, /* request WR completion */ 448 ULPCB_FLAG_URG = 1 << 5, /* urgent data */ 449 ULPCB_FLAG_TLS_HDR = 1 << 6, /* payload with tls hdr */ 450 ULPCB_FLAG_NO_HDR = 1 << 7, /* not a ofld wr */ 451 }; 452 453 /* The ULP mode/submode of an skbuff */ 454 #define skb_ulp_mode(skb) (ULP_SKB_CB(skb)->ulp_mode) 455 #define TCP_PAGE(sk) (sk->sk_frag.page) 456 #define TCP_OFF(sk) (sk->sk_frag.offset) 457 458 static inline struct chtls_dev *to_chtls_dev(struct tls_toe_device *tlsdev) 459 { 460 return container_of(tlsdev, struct chtls_dev, tlsdev); 461 } 462 463 static inline void csk_set_flag(struct chtls_sock *csk, 464 enum csk_flags flag) 465 { 466 __set_bit(flag, &csk->flags); 467 } 468 469 static inline void csk_reset_flag(struct chtls_sock *csk, 470 enum csk_flags flag) 471 { 472 __clear_bit(flag, &csk->flags); 473 } 474 475 static inline bool csk_conn_inline(const struct chtls_sock *csk) 476 { 477 return test_bit(CSK_CONN_INLINE, &csk->flags); 478 } 479 480 static inline int csk_flag(const struct sock *sk, enum csk_flags flag) 481 { 482 struct chtls_sock *csk = rcu_dereference_sk_user_data(sk); 483 484 if (!csk_conn_inline(csk)) 485 return 0; 486 return test_bit(flag, &csk->flags); 487 } 488 489 static inline int csk_flag_nochk(const struct chtls_sock *csk, 490 enum csk_flags flag) 491 { 492 return test_bit(flag, &csk->flags); 493 } 494 495 static inline void *cplhdr(struct sk_buff *skb) 496 { 497 return skb->data; 498 } 499 500 static inline int is_neg_adv(unsigned int status) 501 { 502 return status == CPL_ERR_RTX_NEG_ADVICE || 503 status == CPL_ERR_KEEPALV_NEG_ADVICE || 504 status == CPL_ERR_PERSIST_NEG_ADVICE; 505 } 506 507 static inline void process_cpl_msg(void (*fn)(struct sock *, struct sk_buff *), 508 struct sock *sk, 509 struct sk_buff *skb) 510 { 511 skb_reset_mac_header(skb); 512 skb_reset_network_header(skb); 513 skb_reset_transport_header(skb); 514 515 bh_lock_sock(sk); 516 if (unlikely(sock_owned_by_user(sk))) { 517 BLOG_SKB_CB(skb)->backlog_rcv = fn; 518 __sk_add_backlog(sk, skb); 519 } else { 520 fn(sk, skb); 521 } 522 bh_unlock_sock(sk); 523 } 524 525 static inline void chtls_sock_free(struct kref *ref) 526 { 527 struct chtls_sock *csk = container_of(ref, struct chtls_sock, 528 kref); 529 kfree(csk); 530 } 531 532 static inline void __chtls_sock_put(const char *fn, struct chtls_sock *csk) 533 { 534 kref_put(&csk->kref, chtls_sock_free); 535 } 536 537 static inline void __chtls_sock_get(const char *fn, 538 struct chtls_sock *csk) 539 { 540 kref_get(&csk->kref); 541 } 542 543 static inline void send_or_defer(struct sock *sk, struct tcp_sock *tp, 544 struct sk_buff *skb, int through_l2t) 545 { 546 struct chtls_sock *csk = rcu_dereference_sk_user_data(sk); 547 548 if (through_l2t) { 549 /* send through L2T */ 550 cxgb4_l2t_send(csk->egress_dev, skb, csk->l2t_entry); 551 } else { 552 /* send directly */ 553 cxgb4_ofld_send(csk->egress_dev, skb); 554 } 555 } 556 557 typedef int (*chtls_handler_func)(struct chtls_dev *, struct sk_buff *); 558 extern chtls_handler_func chtls_handlers[NUM_CPL_CMDS]; 559 void chtls_install_cpl_ops(struct sock *sk); 560 int chtls_init_kmap(struct chtls_dev *cdev, struct cxgb4_lld_info *lldi); 561 void chtls_listen_stop(struct chtls_dev *cdev, struct sock *sk); 562 int chtls_listen_start(struct chtls_dev *cdev, struct sock *sk); 563 void chtls_close(struct sock *sk, long timeout); 564 int chtls_disconnect(struct sock *sk, int flags); 565 void chtls_shutdown(struct sock *sk, int how); 566 void chtls_destroy_sock(struct sock *sk); 567 int chtls_sendmsg(struct sock *sk, struct msghdr *msg, size_t size); 568 int chtls_recvmsg(struct sock *sk, struct msghdr *msg, 569 size_t len, int nonblock, int flags, int *addr_len); 570 int chtls_sendpage(struct sock *sk, struct page *page, 571 int offset, size_t size, int flags); 572 int send_tx_flowc_wr(struct sock *sk, int compl, 573 u32 snd_nxt, u32 rcv_nxt); 574 void chtls_tcp_push(struct sock *sk, int flags); 575 int chtls_push_frames(struct chtls_sock *csk, int comp); 576 int chtls_set_tcb_tflag(struct sock *sk, unsigned int bit_pos, int val); 577 int chtls_setkey(struct chtls_sock *csk, u32 keylen, u32 mode, int cipher_type); 578 void skb_entail(struct sock *sk, struct sk_buff *skb, int flags); 579 unsigned int keyid_to_addr(int start_addr, int keyid); 580 void free_tls_keyid(struct sock *sk); 581 #endif 582