1 /* 2 * CDDL HEADER START 3 * 4 * The contents of this file are subject to the terms of the 5 * Common Development and Distribution License (the "License"). 6 * You may not use this file except in compliance with the License. 7 * 8 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE 9 * or http://www.opensolaris.org/os/licensing. 10 * See the License for the specific language governing permissions 11 * and limitations under the License. 12 * 13 * When distributing Covered Code, include this CDDL HEADER in each 14 * file and include the License file at usr/src/OPENSOLARIS.LICENSE. 15 * If applicable, add the following below this CDDL HEADER, with the 16 * fields enclosed by brackets "[]" replaced with your own identifying 17 * information: Portions Copyright [yyyy] [name of copyright owner] 18 * 19 * CDDL HEADER END 20 */ 21 /* 22 * Copyright (c) 2010, Oracle and/or its affiliates. All rights reserved. 23 * Copyright 2012 Nexenta Systems, Inc. All rights reserved. 24 */ 25 26 #ifndef _RDSV3_IMPL_H 27 #define _RDSV3_IMPL_H 28 29 #include <sys/atomic.h> 30 31 /* 32 * This file is only present in Solaris 33 */ 34 35 #ifdef __cplusplus 36 extern "C" { 37 #endif 38 39 extern dev_info_t *rdsv3_dev_info; 40 41 #define uint16_be_t uint16_t 42 #define uint32_be_t uint32_t 43 #define uint64_be_t uint64_t 44 45 /* 46 * RDS Well known service id 47 * Format: 0x1h00144Fhhhhhhhh 48 * "00144F" is the Sun OUI 49 * 'h' can be any hex-decimal digit. 50 */ 51 #define RDS_SERVICE_ID 0x1000144F00000001ULL 52 53 /* 54 * Atomic operations 55 */ 56 typedef unsigned int atomic_t; 57 #define ATOMIC_INIT(a) a 58 59 #define atomic_get(p) (*(p)) 60 61 #define atomic_cmpset_long(p, c, n) \ 62 ((c == atomic_cas_uint(p, c, n)) ? c : -1) 63 64 #define atomic_dec_and_test(a) \ 65 (atomic_dec_uint_nv((a)) == 0) 66 67 #define atomic_cmpxchg(a, o, n) \ 68 atomic_cas_uint(a, o, n) 69 70 #ifdef _LP64 71 #define set_bit(b, p) \ 72 atomic_or_ulong(((volatile ulong_t *)(void *)(p)) + ((b) >> 6), \ 73 1ul << ((b) & 0x3f)) 74 75 #define clear_bit(b, p) \ 76 atomic_and_ulong(((volatile ulong_t *)(void *)(p)) + ((b) >> 6), \ 77 ~(1ul << ((b) & 0x3f))) 78 79 #define test_bit(b, p) \ 80 (((volatile ulong_t *)(void *)(p))[(b) >> 6] & (1ul << ((b) & 0x3f))) 81 82 #define test_and_set_bit(b, p) \ 83 atomic_set_long_excl(((ulong_t *)(void *)(p)) + \ 84 ((b) >> 6), ((b) & 0x3f)) 85 #define test_and_clear_bit(b, p) \ 86 !atomic_clear_long_excl(((ulong_t *)(void *)(p)) + ((b) >> 6), \ 87 ((b) & 0x3f)) 88 #else 89 #define set_bit(b, p) \ 90 atomic_or_uint(((volatile uint_t *)(void *)p) + (b >> 5), \ 91 1ul << (b & 0x1f)) 92 93 #define clear_bit(b, p) \ 94 atomic_and_uint(((volatile uint_t *)(void *)p) + (b >> 5), \ 95 ~(1ul << (b & 0x1f))) 96 97 #define test_bit(b, p) \ 98 (((volatile uint_t *)(void *)p)[b >> 5] & (1ul << (b & 0x1f))) 99 100 #define test_and_set_bit(b, p) \ 101 atomic_set_long_excl(((ulong_t *)(void *)p) + (b >> 5), (b & 0x1f)) 102 #define test_and_clear_bit(b, p) \ 103 !atomic_clear_long_excl(((ulong_t *)(void *)p) + (b >> 5), (b & 0x1f)) 104 #endif 105 106 /* 107 * These macros and/or constants are used instead of Linux 108 * generic_{test,__{clear,set}}_le_bit(). 109 */ 110 #if defined(sparc) 111 #define LE_BIT_XOR ((BITS_PER_LONG-1) & ~0x7) 112 #else 113 #define LE_BIT_XOR 0 114 #endif 115 116 #define set_le_bit(b, p) set_bit(b ^ LE_BIT_XOR, p) 117 #define clear_le_bit(b, p) clear_bit(b ^ LE_BIT_XOR, p) 118 #define test_le_bit(b, p) test_bit(b ^ LE_BIT_XOR, p) 119 120 uint_t rdsv3_one_sec_in_hz; 121 122 #define jiffies 100 123 #define HZ (drv_hztousec(1)) 124 /* setting this to PAGESIZE throws build errors */ 125 #define PAGE_SIZE 4096 /* xxx - fix this */ 126 #define BITS_PER_LONG (sizeof (unsigned long) * 8) 127 128 /* debug */ 129 #define RDSV3_PANIC() cmn_err(CE_PANIC, "Panic forced by RDSV3"); 130 131 /* ERR */ 132 #define MAX_ERRNO 4095 133 #define ERR_PTR(x) ((void *)(uintptr_t)x) 134 #define IS_ERR(ptr) (((uintptr_t)ptr) >= (uintptr_t)-MAX_ERRNO) 135 #define PTR_ERR(ptr) (int)(uintptr_t)ptr 136 137 #define MAX_SCHEDULE_TIMEOUT (~0UL>>1) 138 139 /* list */ 140 /* copied and modified list_remove_node */ 141 #define list_remove_node(node) \ 142 if ((node)->list_next != NULL) { \ 143 (node)->list_prev->list_next = (node)->list_next; \ 144 (node)->list_next->list_prev = (node)->list_prev; \ 145 (node)->list_next = (node)->list_prev = NULL; \ 146 } 147 148 #define list_splice(src, dst) { \ 149 list_create(dst, (src)->list_size, (src)->list_offset); \ 150 list_move_tail(dst, src); \ 151 } 152 153 #define RDSV3_FOR_EACH_LIST_NODE(objp, listp, member) \ 154 for (objp = list_head(listp); objp; objp = list_next(listp, objp)) 155 #define RDSV3_FOR_EACH_LIST_NODE_SAFE(objp, tmp, listp, member) \ 156 for (objp = list_head(listp), tmp = (objp != NULL) ? \ 157 list_next(listp, objp) : NULL; \ 158 objp; \ 159 objp = tmp, tmp = (objp != NULL) ? \ 160 list_next(listp, objp) : NULL) 161 162 /* simulate wait_queue_head_t */ 163 typedef struct rdsv3_wait_queue_s { 164 kmutex_t waitq_mutex; 165 kcondvar_t waitq_cv; 166 uint_t waitq_waiters; 167 } rdsv3_wait_queue_t; 168 169 #define rdsv3_init_waitqueue(waitqp) \ 170 mutex_init(&(waitqp)->waitq_mutex, NULL, MUTEX_DRIVER, NULL); \ 171 cv_init(&(waitqp)->waitq_cv, NULL, CV_DRIVER, NULL); \ 172 (waitqp)->waitq_waiters = 0 173 174 #define rdsv3_exit_waitqueue(waitqp) \ 175 ASSERT((waitqp)->waitq_waiters == 0); \ 176 mutex_destroy(&(waitqp)->waitq_mutex); \ 177 cv_destroy(&(waitqp)->waitq_cv) 178 179 #define rdsv3_wake_up(waitqp) { \ 180 mutex_enter(&(waitqp)->waitq_mutex); \ 181 if ((waitqp)->waitq_waiters) \ 182 cv_signal(&(waitqp)->waitq_cv); \ 183 mutex_exit(&(waitqp)->waitq_mutex); \ 184 } 185 186 #define rdsv3_wake_up_all(waitqp) { \ 187 mutex_enter(&(waitqp)->waitq_mutex); \ 188 if ((waitqp)->waitq_waiters) \ 189 cv_broadcast(&(waitqp)->waitq_cv); \ 190 mutex_exit(&(waitqp)->waitq_mutex); \ 191 } 192 193 /* analogous to cv_wait */ 194 #define rdsv3_wait_event(waitq, condition) \ 195 { \ 196 mutex_enter(&(waitq)->waitq_mutex); \ 197 (waitq)->waitq_waiters++; \ 198 while (!(condition)) { \ 199 cv_wait(&(waitq)->waitq_cv, &(waitq)->waitq_mutex); \ 200 } \ 201 (waitq)->waitq_waiters--; \ 202 mutex_exit(&(waitq)->waitq_mutex); \ 203 } 204 205 /* analogous to cv_wait_sig */ 206 #define rdsv3_wait_sig(waitqp, condition) \ 207 ( \ 208 { \ 209 int cv_return = 1; \ 210 mutex_enter(&(waitqp)->waitq_mutex); \ 211 (waitqp)->waitq_waiters++; \ 212 while (!(condition)) { \ 213 cv_return = cv_wait_sig(&(waitqp)->waitq_cv, \ 214 &(waitqp)->waitq_mutex); \ 215 if (cv_return == 0) { \ 216 break; \ 217 } \ 218 } \ 219 (waitqp)->waitq_waiters--; \ 220 mutex_exit(&(waitqp)->waitq_mutex); \ 221 cv_return; \ 222 } \ 223 ) 224 225 #define SOCK_DEAD 1ul 226 227 /* socket */ 228 typedef struct rsock { 229 sock_upper_handle_t sk_upper_handle; 230 sock_upcalls_t *sk_upcalls; 231 232 kmutex_t sk_lock; 233 ulong_t sk_flag; 234 rdsv3_wait_queue_t *sk_sleep; /* Also protected by rs_recv_lock */ 235 int sk_sndbuf; 236 int sk_rcvbuf; 237 atomic_t sk_refcount; 238 239 struct rdsv3_sock *sk_protinfo; 240 } rsock_t; 241 242 typedef struct rdsv3_conn_info_s { 243 uint32_be_t c_laddr; 244 uint32_be_t c_faddr; 245 } rdsv3_conn_info_t; 246 247 /* WQ */ 248 typedef struct rdsv3_workqueue_struct_s { 249 kmutex_t wq_lock; 250 uint_t wq_state; 251 int wq_pending; 252 list_t wq_queue; 253 } rdsv3_workqueue_struct_t; 254 255 struct rdsv3_work_s; 256 typedef void (*rdsv3_work_func_t)(struct rdsv3_work_s *); 257 typedef struct rdsv3_work_s { 258 list_node_t work_item; 259 rdsv3_work_func_t func; 260 } rdsv3_work_t; 261 262 /* simulate delayed_work */ 263 typedef struct rdsv3_delayed_work_s { 264 kmutex_t lock; 265 rdsv3_work_t work; 266 timeout_id_t timeid; 267 rdsv3_workqueue_struct_t *wq; 268 } rdsv3_delayed_work_t; 269 270 #define RDSV3_INIT_WORK(wp, f) (wp)->func = f 271 #define RDSV3_INIT_DELAYED_WORK(dwp, f) \ 272 (dwp)->work.func = f; \ 273 mutex_init(&(dwp)->lock, NULL, MUTEX_DRIVER, NULL); \ 274 (dwp)->timeid = 0 275 276 /* simulate scatterlist */ 277 struct rdsv3_scatterlist { 278 caddr_t vaddr; 279 uint_t length; 280 ibt_wr_ds_t *sgl; 281 ibt_mi_hdl_t mihdl; 282 }; 283 #define rdsv3_sg_page(scat) (scat)->vaddr 284 #define rdsv3_sg_len(scat) (scat)->length 285 #define rdsv3_sg_set_page(scat, pg, len, off) \ 286 (scat)->vaddr = (caddr_t)(pg + off); \ 287 (scat)->length = len 288 #define rdsv3_ib_sg_dma_len(dev, scat) rdsv3_sg_len(scat) 289 290 /* copied from sys/socket.h */ 291 #if defined(__sparc) 292 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */ 293 #define _CMSG_HDR_ALIGNMENT 8 294 #else 295 /* for __i386 (and other future architectures) */ 296 #define _CMSG_HDR_ALIGNMENT 4 297 #endif /* defined(__sparc) */ 298 299 /* 300 * The cmsg headers (and macros dealing with them) were made available as 301 * part of UNIX95 and hence need to be protected with a _XPG4_2 define. 302 */ 303 #define _CMSG_DATA_ALIGNMENT (sizeof (int)) 304 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \ 305 ~(_CMSG_HDR_ALIGNMENT - 1)) 306 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \ 307 ~(_CMSG_DATA_ALIGNMENT - 1)) 308 #define CMSG_DATA(c) \ 309 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1)) 310 311 #define CMSG_FIRSTHDR(m) \ 312 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \ 313 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control)) 314 315 #define CMSG_NXTHDR(m, c) \ 316 (((c) == 0) ? CMSG_FIRSTHDR(m) : \ 317 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \ 318 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \ 319 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \ 320 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \ 321 ((struct cmsghdr *)0) : \ 322 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \ 323 ((struct cmsghdr *)(c))->cmsg_len)))) 324 325 /* Amount of space + padding needed for a message of length l */ 326 #define CMSG_SPACE(l) \ 327 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l))) 328 329 /* Value to be used in cmsg_len, does not include trailing padding */ 330 #define CMSG_LEN(l) \ 331 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l)) 332 333 /* OFUV -> IB */ 334 #define RDSV3_IBDEV2HCAHDL(device) (device)->hca_hdl 335 #define RDSV3_QP2CHANHDL(qp) (qp)->ibt_qp 336 #define RDSV3_PD2PDHDL(pd) (pd)->ibt_pd 337 #define RDSV3_CQ2CQHDL(cq) (cq)->ibt_cq 338 339 struct rdsv3_hdrs_mr { 340 ibt_lkey_t lkey; 341 caddr_t addr; 342 size_t size; 343 ibt_mr_hdl_t hdl; 344 }; 345 346 /* rdsv3_impl.c */ 347 void rdsv3_trans_init(); 348 boolean_t rdsv3_capable_interface(struct lifreq *lifrp); 349 int rdsv3_do_ip_ioctl(ksocket_t so4, void **ipaddrs, int *size, int *nifs); 350 int rdsv3_do_ip_ioctl_old(ksocket_t so4, void **ipaddrs, int *size, int *nifs); 351 boolean_t rdsv3_isloopback(ipaddr_t addr); 352 void rdsv3_cancel_delayed_work(rdsv3_delayed_work_t *dwp); 353 void rdsv3_flush_workqueue(rdsv3_workqueue_struct_t *wq); 354 void rdsv3_queue_work(rdsv3_workqueue_struct_t *wq, rdsv3_work_t *wp); 355 void rdsv3_queue_delayed_work(rdsv3_workqueue_struct_t *wq, 356 rdsv3_delayed_work_t *dwp, uint_t delay); 357 struct rsock *rdsv3_sk_alloc(); 358 void rdsv3_sock_init_data(struct rsock *sk); 359 void rdsv3_sock_exit_data(struct rsock *sk); 360 void rdsv3_destroy_task_workqueue(rdsv3_workqueue_struct_t *wq); 361 rdsv3_workqueue_struct_t *rdsv3_create_task_workqueue(char *name); 362 int rdsv3_conn_constructor(void *buf, void *arg, int kmflags); 363 void rdsv3_conn_destructor(void *buf, void *arg); 364 int rdsv3_conn_compare(const void *conn1, const void *conn2); 365 void rdsv3_loop_init(); 366 int rdsv3_mr_compare(const void *mr1, const void *mr2); 367 int rdsv3_put_cmsg(struct nmsghdr *msg, int level, int type, size_t size, 368 void *payload); 369 int rdsv3_verify_bind_address(ipaddr_t addr); 370 uint16_t rdsv3_ip_fast_csum(void *buffer, size_t length); 371 uint_t rdsv3_ib_dma_map_sg(struct ib_device *dev, struct rdsv3_scatterlist 372 *scat, uint_t num); 373 void rdsv3_ib_dma_unmap_sg(ib_device_t *dev, struct rdsv3_scatterlist *scat, 374 uint_t num); 375 static inline void 376 rdsv3_sk_sock_hold(struct rsock *sk) 377 { 378 atomic_inc_32(&sk->sk_refcount); 379 } 380 static inline void 381 rdsv3_sk_sock_put(struct rsock *sk) 382 { 383 if (atomic_dec_and_test(&sk->sk_refcount)) 384 rdsv3_sock_exit_data(sk); 385 } 386 static inline int 387 rdsv3_sk_sock_flag(struct rsock *sk, uint_t flag) 388 { 389 return (test_bit(flag, &sk->sk_flag)); 390 } 391 static inline void 392 rdsv3_sk_sock_orphan(struct rsock *sk) 393 { 394 set_bit(SOCK_DEAD, &sk->sk_flag); 395 } 396 397 #define rdsv3_sndtimeo(a, b) b ? 0 : 3600 /* check this value on linux */ 398 #define rdsv3_rcvtimeo(a, b) b ? 0 : 3600 /* check this value on linux */ 399 400 void rdsv3_ib_free_conn(void *arg); 401 402 #ifdef __cplusplus 403 } 404 #endif 405 406 #endif /* _RDSV3_IMPL_H */ 407