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 */ 24 25 #ifndef _RDSV3_IMPL_H 26 #define _RDSV3_IMPL_H 27 28 #include <sys/atomic.h> 29 30 /* 31 * This file is only present in Solaris 32 */ 33 34 #ifdef __cplusplus 35 extern "C" { 36 #endif 37 38 extern dev_info_t *rdsv3_dev_info; 39 40 #define uint16_be_t uint16_t 41 #define uint32_be_t uint32_t 42 #define uint64_be_t uint64_t 43 44 /* 45 * RDS Well known service id 46 * Format: 0x1h00144Fhhhhhhhh 47 * "00144F" is the Sun OUI 48 * 'h' can be any hex-decimal digit. 49 */ 50 #define RDS_SERVICE_ID 0x1000144F00000001ULL 51 52 /* 53 * Atomic operations 54 */ 55 typedef unsigned int atomic_t; 56 #define ATOMIC_INIT(a) a 57 58 #define atomic_get(p) (*(p)) 59 60 #define atomic_cmpset_long(p, c, n) \ 61 ((c == atomic_cas_uint(p, c, n)) ? c : -1) 62 63 #define atomic_dec_and_test(a) \ 64 (atomic_dec_uint_nv((a)) == 0) 65 66 #define atomic_cmpxchg(a, o, n) \ 67 atomic_cas_uint(a, o, n) 68 69 #ifdef _LP64 70 #define set_bit(b, p) \ 71 atomic_or_ulong(((volatile ulong_t *)(void *)(p)) + ((b) >> 6), \ 72 1ul << ((b) & 0x3f)) 73 74 #define clear_bit(b, p) \ 75 atomic_and_ulong(((volatile ulong_t *)(void *)(p)) + ((b) >> 6), \ 76 ~(1ul << ((b) & 0x3f))) 77 78 #define test_bit(b, p) \ 79 (((volatile ulong_t *)(void *)(p))[(b) >> 6] & (1ul << ((b) & 0x3f))) 80 81 #define test_and_set_bit(b, p) \ 82 atomic_set_long_excl(((ulong_t *)(void *)(p)) + \ 83 ((b) >> 6), ((b) & 0x3f)) 84 #define test_and_clear_bit(b, p) \ 85 !atomic_clear_long_excl(((ulong_t *)(void *)(p)) + ((b) >> 6), \ 86 ((b) & 0x3f)) 87 #else 88 #define set_bit(b, p) \ 89 atomic_or_uint(((volatile uint_t *)(void *)p) + (b >> 5), \ 90 1ul << (b & 0x1f)) 91 92 #define clear_bit(b, p) \ 93 atomic_and_uint(((volatile uint_t *)(void *)p) + (b >> 5), \ 94 ~(1ul << (b & 0x1f))) 95 96 #define test_bit(b, p) \ 97 (((volatile uint_t *)(void *)p)[b >> 5] & (1ul << (b & 0x1f))) 98 99 #define test_and_set_bit(b, p) \ 100 atomic_set_long_excl(((ulong_t *)(void *)p) + (b >> 5), (b & 0x1f)) 101 #define test_and_clear_bit(b, p) \ 102 !atomic_clear_long_excl(((ulong_t *)(void *)p) + (b >> 5), (b & 0x1f)) 103 #endif 104 105 /* 106 * These macros and/or constants are used instead of Linux 107 * generic_{test,__{clear,set}}_le_bit(). 108 */ 109 #if defined(sparc) 110 #define LE_BIT_XOR ((BITS_PER_LONG-1) & ~0x7) 111 #else 112 #define LE_BIT_XOR 0 113 #endif 114 115 #define set_le_bit(b, p) set_bit(b ^ LE_BIT_XOR, p) 116 #define clear_le_bit(b, p) clear_bit(b ^ LE_BIT_XOR, p) 117 #define test_le_bit(b, p) test_bit(b ^ LE_BIT_XOR, p) 118 119 uint_t rdsv3_one_sec_in_hz; 120 121 #define jiffies 100 122 #define HZ (drv_hztousec(1)) 123 #define container_of(m, s, name) \ 124 (void *)((uintptr_t)(m) - (uintptr_t)offsetof(s, name)) 125 #define ARRAY_SIZE(x) (sizeof (x) / sizeof (x[0])) 126 /* setting this to PAGESIZE throws build errors */ 127 #define PAGE_SIZE 4096 /* xxx - fix this */ 128 #define BITS_PER_LONG (sizeof (unsigned long) * 8) 129 130 /* debug */ 131 #define RDSV3_PANIC() cmn_err(CE_PANIC, "Panic forced by RDSV3"); 132 133 /* ERR */ 134 #define MAX_ERRNO 4095 135 #define ERR_PTR(x) ((void *)(uintptr_t)x) 136 #define IS_ERR(ptr) (((uintptr_t)ptr) >= (uintptr_t)-MAX_ERRNO) 137 #define PTR_ERR(ptr) (int)(uintptr_t)ptr 138 139 /* cpu */ 140 #define NR_CPUS 1 141 #define put_cpu() 142 #define get_cpu() 0 143 144 #define MAX_SCHEDULE_TIMEOUT (~0UL>>1) 145 146 #define RDMA_CM_EVENT_ADDR_CHANGE 14 147 148 /* list */ 149 /* copied and modified list_remove_node */ 150 #define list_remove_node(node) \ 151 if ((node)->list_next != NULL) { \ 152 (node)->list_prev->list_next = (node)->list_next; \ 153 (node)->list_next->list_prev = (node)->list_prev; \ 154 (node)->list_next = (node)->list_prev = NULL; \ 155 } 156 157 #define list_splice(src, dst) { \ 158 list_create(dst, (src)->list_size, (src)->list_offset); \ 159 list_move_tail(dst, src); \ 160 } 161 162 #define RDSV3_FOR_EACH_LIST_NODE(objp, listp, member) \ 163 for (objp = list_head(listp); objp; objp = list_next(listp, objp)) 164 #define RDSV3_FOR_EACH_LIST_NODE_SAFE(objp, tmp, listp, member) \ 165 for (objp = list_head(listp), tmp = (objp != NULL) ? \ 166 list_next(listp, objp) : NULL; \ 167 objp; \ 168 objp = tmp, tmp = (objp != NULL) ? \ 169 list_next(listp, objp) : NULL) 170 171 /* simulate wait_queue_head_t */ 172 typedef struct rdsv3_wait_queue_s { 173 kmutex_t waitq_mutex; 174 kcondvar_t waitq_cv; 175 uint_t waitq_waiters; 176 } rdsv3_wait_queue_t; 177 178 #define rdsv3_init_waitqueue(waitqp) \ 179 mutex_init(&(waitqp)->waitq_mutex, NULL, MUTEX_DRIVER, NULL); \ 180 cv_init(&(waitqp)->waitq_cv, NULL, CV_DRIVER, NULL); \ 181 (waitqp)->waitq_waiters = 0 182 183 #define rdsv3_exit_waitqueue(waitqp) \ 184 ASSERT((waitqp)->waitq_waiters == 0); \ 185 mutex_destroy(&(waitqp)->waitq_mutex); \ 186 cv_destroy(&(waitqp)->waitq_cv) 187 188 #define rdsv3_wake_up(waitqp) { \ 189 mutex_enter(&(waitqp)->waitq_mutex); \ 190 if ((waitqp)->waitq_waiters) \ 191 cv_signal(&(waitqp)->waitq_cv); \ 192 mutex_exit(&(waitqp)->waitq_mutex); \ 193 } 194 195 #define rdsv3_wake_up_all(waitqp) { \ 196 mutex_enter(&(waitqp)->waitq_mutex); \ 197 if ((waitqp)->waitq_waiters) \ 198 cv_broadcast(&(waitqp)->waitq_cv); \ 199 mutex_exit(&(waitqp)->waitq_mutex); \ 200 } 201 202 /* analogous to cv_wait */ 203 #define rdsv3_wait_event(waitq, condition) \ 204 { \ 205 mutex_enter(&(waitq)->waitq_mutex); \ 206 (waitq)->waitq_waiters++; \ 207 while (!(condition)) { \ 208 cv_wait(&(waitq)->waitq_cv, &(waitq)->waitq_mutex); \ 209 } \ 210 (waitq)->waitq_waiters--; \ 211 mutex_exit(&(waitq)->waitq_mutex); \ 212 } 213 214 /* analogous to cv_wait_sig */ 215 #define rdsv3_wait_sig(waitqp, condition) \ 216 ( \ 217 { \ 218 int cv_return = 1; \ 219 mutex_enter(&(waitqp)->waitq_mutex); \ 220 (waitqp)->waitq_waiters++; \ 221 while (!(condition)) { \ 222 cv_return = cv_wait_sig(&(waitqp)->waitq_cv, \ 223 &(waitqp)->waitq_mutex); \ 224 if (cv_return == 0) { \ 225 break; \ 226 } \ 227 } \ 228 (waitqp)->waitq_waiters--; \ 229 mutex_exit(&(waitqp)->waitq_mutex); \ 230 cv_return; \ 231 } \ 232 ) 233 234 #define SOCK_DEAD 1ul 235 236 /* socket */ 237 typedef struct rsock { 238 sock_upper_handle_t sk_upper_handle; 239 sock_upcalls_t *sk_upcalls; 240 241 kmutex_t sk_lock; 242 ulong_t sk_flag; 243 rdsv3_wait_queue_t *sk_sleep; /* Also protected by rs_recv_lock */ 244 int sk_sndbuf; 245 int sk_rcvbuf; 246 atomic_t sk_refcount; 247 248 struct rdsv3_sock *sk_protinfo; 249 } rsock_t; 250 251 typedef struct rdsv3_conn_info_s { 252 uint32_be_t c_laddr; 253 uint32_be_t c_faddr; 254 } rdsv3_conn_info_t; 255 256 /* WQ */ 257 typedef struct rdsv3_workqueue_struct_s { 258 kmutex_t wq_lock; 259 uint_t wq_state; 260 int wq_pending; 261 list_t wq_queue; 262 } rdsv3_workqueue_struct_t; 263 264 struct rdsv3_work_s; 265 typedef void (*rdsv3_work_func_t)(struct rdsv3_work_s *); 266 typedef struct rdsv3_work_s { 267 list_node_t work_item; 268 rdsv3_work_func_t func; 269 } rdsv3_work_t; 270 271 /* simulate delayed_work */ 272 typedef struct rdsv3_delayed_work_s { 273 kmutex_t lock; 274 rdsv3_work_t work; 275 timeout_id_t timeid; 276 rdsv3_workqueue_struct_t *wq; 277 } rdsv3_delayed_work_t; 278 279 #define RDSV3_INIT_WORK(wp, f) (wp)->func = f 280 #define RDSV3_INIT_DELAYED_WORK(dwp, f) \ 281 (dwp)->work.func = f; \ 282 mutex_init(&(dwp)->lock, NULL, MUTEX_DRIVER, NULL); \ 283 (dwp)->timeid = 0 284 285 /* simulate scatterlist */ 286 struct rdsv3_scatterlist { 287 caddr_t vaddr; 288 uint_t length; 289 ibt_wr_ds_t *sgl; 290 ibt_mi_hdl_t mihdl; 291 }; 292 #define rdsv3_sg_page(scat) (scat)->vaddr 293 #define rdsv3_sg_len(scat) (scat)->length 294 #define rdsv3_sg_set_page(scat, pg, len, off) \ 295 (scat)->vaddr = (caddr_t)(pg + off); \ 296 (scat)->length = len 297 #define rdsv3_ib_sg_dma_len(dev, scat) rdsv3_sg_len(scat) 298 299 /* copied from sys/socket.h */ 300 #if defined(__sparc) 301 /* To maintain backward compatibility, alignment needs to be 8 on sparc. */ 302 #define _CMSG_HDR_ALIGNMENT 8 303 #else 304 /* for __i386 (and other future architectures) */ 305 #define _CMSG_HDR_ALIGNMENT 4 306 #endif /* defined(__sparc) */ 307 308 /* 309 * The cmsg headers (and macros dealing with them) were made available as 310 * part of UNIX95 and hence need to be protected with a _XPG4_2 define. 311 */ 312 #define _CMSG_DATA_ALIGNMENT (sizeof (int)) 313 #define _CMSG_HDR_ALIGN(x) (((uintptr_t)(x) + _CMSG_HDR_ALIGNMENT - 1) & \ 314 ~(_CMSG_HDR_ALIGNMENT - 1)) 315 #define _CMSG_DATA_ALIGN(x) (((uintptr_t)(x) + _CMSG_DATA_ALIGNMENT - 1) & \ 316 ~(_CMSG_DATA_ALIGNMENT - 1)) 317 #define CMSG_DATA(c) \ 318 ((unsigned char *)_CMSG_DATA_ALIGN((struct cmsghdr *)(c) + 1)) 319 320 #define CMSG_FIRSTHDR(m) \ 321 (((m)->msg_controllen < sizeof (struct cmsghdr)) ? \ 322 (struct cmsghdr *)0 : (struct cmsghdr *)((m)->msg_control)) 323 324 #define CMSG_NXTHDR(m, c) \ 325 (((c) == 0) ? CMSG_FIRSTHDR(m) : \ 326 ((((uintptr_t)_CMSG_HDR_ALIGN((char *)(c) + \ 327 ((struct cmsghdr *)(c))->cmsg_len) + sizeof (struct cmsghdr)) > \ 328 (((uintptr_t)((struct msghdr *)(m))->msg_control) + \ 329 ((uintptr_t)((struct msghdr *)(m))->msg_controllen))) ? \ 330 ((struct cmsghdr *)0) : \ 331 ((struct cmsghdr *)_CMSG_HDR_ALIGN((char *)(c) + \ 332 ((struct cmsghdr *)(c))->cmsg_len)))) 333 334 /* Amount of space + padding needed for a message of length l */ 335 #define CMSG_SPACE(l) \ 336 ((unsigned int)_CMSG_HDR_ALIGN(sizeof (struct cmsghdr) + (l))) 337 338 /* Value to be used in cmsg_len, does not include trailing padding */ 339 #define CMSG_LEN(l) \ 340 ((unsigned int)_CMSG_DATA_ALIGN(sizeof (struct cmsghdr)) + (l)) 341 342 /* OFUV -> IB */ 343 #define RDSV3_IBDEV2HCAHDL(device) (device)->hca_hdl 344 #define RDSV3_QP2CHANHDL(qp) (qp)->ibt_qp 345 #define RDSV3_PD2PDHDL(pd) (pd)->ibt_pd 346 #define RDSV3_CQ2CQHDL(cq) (cq)->ibt_cq 347 348 struct rdsv3_hdrs_mr { 349 ibt_lkey_t lkey; 350 caddr_t addr; 351 size_t size; 352 ibt_mr_hdl_t hdl; 353 }; 354 355 /* rdsv3_impl.c */ 356 void rdsv3_trans_init(); 357 boolean_t rdsv3_capable_interface(struct lifreq *lifrp); 358 int rdsv3_do_ip_ioctl(ksocket_t so4, void **ipaddrs, int *size, int *nifs); 359 int rdsv3_do_ip_ioctl_old(ksocket_t so4, void **ipaddrs, int *size, int *nifs); 360 boolean_t rdsv3_isloopback(ipaddr_t addr); 361 void rdsv3_cancel_delayed_work(rdsv3_delayed_work_t *dwp); 362 void rdsv3_flush_workqueue(rdsv3_workqueue_struct_t *wq); 363 void rdsv3_queue_work(rdsv3_workqueue_struct_t *wq, rdsv3_work_t *wp); 364 void rdsv3_queue_delayed_work(rdsv3_workqueue_struct_t *wq, 365 rdsv3_delayed_work_t *dwp, uint_t delay); 366 struct rsock *rdsv3_sk_alloc(); 367 void rdsv3_sock_init_data(struct rsock *sk); 368 void rdsv3_sock_exit_data(struct rsock *sk); 369 void rdsv3_destroy_task_workqueue(rdsv3_workqueue_struct_t *wq); 370 rdsv3_workqueue_struct_t *rdsv3_create_task_workqueue(char *name); 371 int rdsv3_conn_constructor(void *buf, void *arg, int kmflags); 372 void rdsv3_conn_destructor(void *buf, void *arg); 373 int rdsv3_conn_compare(const void *conn1, const void *conn2); 374 void rdsv3_loop_init(); 375 int rdsv3_mr_compare(const void *mr1, const void *mr2); 376 int rdsv3_put_cmsg(struct nmsghdr *msg, int level, int type, size_t size, 377 void *payload); 378 int rdsv3_verify_bind_address(ipaddr_t addr); 379 uint16_t rdsv3_ip_fast_csum(void *buffer, size_t length); 380 uint_t rdsv3_ib_dma_map_sg(struct ib_device *dev, struct rdsv3_scatterlist 381 *scat, uint_t num); 382 void rdsv3_ib_dma_unmap_sg(ib_device_t *dev, struct rdsv3_scatterlist *scat, 383 uint_t num); 384 static inline void 385 rdsv3_sk_sock_hold(struct rsock *sk) 386 { 387 atomic_add_32(&sk->sk_refcount, 1); 388 } 389 static inline void 390 rdsv3_sk_sock_put(struct rsock *sk) 391 { 392 if (atomic_dec_and_test(&sk->sk_refcount)) 393 rdsv3_sock_exit_data(sk); 394 } 395 static inline int 396 rdsv3_sk_sock_flag(struct rsock *sk, uint_t flag) 397 { 398 return (test_bit(flag, &sk->sk_flag)); 399 } 400 static inline void 401 rdsv3_sk_sock_orphan(struct rsock *sk) 402 { 403 set_bit(SOCK_DEAD, &sk->sk_flag); 404 } 405 406 #define rdsv3_sndtimeo(a, b) b ? 0 : 3600 /* check this value on linux */ 407 #define rdsv3_rcvtimeo(a, b) b ? 0 : 3600 /* check this value on linux */ 408 409 void rdsv3_ib_free_conn(void *arg); 410 411 #ifdef __cplusplus 412 } 413 #endif 414 415 #endif /* _RDSV3_IMPL_H */ 416