mpsvar.h revision 213839
1/*- 2 * Copyright (c) 2009 Yahoo! Inc. 3 * All rights reserved. 4 * 5 * Redistribution and use in source and binary forms, with or without 6 * modification, are permitted provided that the following conditions 7 * are met: 8 * 1. Redistributions of source code must retain the above copyright 9 * notice, this list of conditions and the following disclaimer. 10 * 2. Redistributions in binary form must reproduce the above copyright 11 * notice, this list of conditions and the following disclaimer in the 12 * documentation and/or other materials provided with the distribution. 13 * 14 * THIS SOFTWARE IS PROVIDED BY THE AUTHOR AND CONTRIBUTORS ``AS IS'' AND 15 * ANY EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE 16 * IMPLIED WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE 17 * ARE DISCLAIMED. IN NO EVENT SHALL THE AUTHOR OR CONTRIBUTORS BE LIABLE 18 * FOR ANY DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL 19 * DAMAGES (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS 20 * OR SERVICES; LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) 21 * HOWEVER CAUSED AND ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT 22 * LIABILITY, OR TORT (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY 23 * OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF 24 * SUCH DAMAGE. 25 * 26 * $FreeBSD: head/sys/dev/mps/mpsvar.h 213839 2010-10-14 16:44:05Z mdf $ 27 */ 28 29#ifndef _MPSVAR_H 30#define _MPSVAR_H 31 32#define MPS_DB_MAX_WAIT 2500 33 34#define MPS_REQ_FRAMES 1024 35#define MPS_EVT_REPLY_FRAMES 32 36#define MPS_REPLY_FRAMES MPS_REQ_FRAMES 37#define MPS_CHAIN_FRAMES 1024 38#define MPS_SENSE_LEN SSD_FULL_SIZE 39#define MPS_MSI_COUNT 1 40#define MPS_SGE64_SIZE 12 41#define MPS_SGE32_SIZE 8 42#define MPS_SGC_SIZE 8 43 44#define MPS_PERIODIC_DELAY 1 /* 1 second heartbeat/watchdog check */ 45 46struct mps_softc; 47struct mps_command; 48struct mpssas_softc; 49struct mpssas_target; 50 51MALLOC_DECLARE(M_MPT2); 52 53typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t, 54 MPI2_EVENT_NOTIFICATION_REPLY *reply); 55typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm); 56 57struct mps_chain { 58 TAILQ_ENTRY(mps_chain) chain_link; 59 MPI2_SGE_IO_UNION *chain; 60 uint32_t chain_busaddr; 61}; 62 63struct mps_command { 64 TAILQ_ENTRY(mps_command) cm_link; 65 struct mps_softc *cm_sc; 66 void *cm_data; 67 u_int cm_length; 68 u_int cm_sglsize; 69 MPI2_SGE_IO_UNION *cm_sge; 70 uint8_t *cm_req; 71 uint8_t *cm_reply; 72 uint32_t cm_reply_data; 73 mps_command_callback_t *cm_complete; 74 void *cm_complete_data; 75 struct mpssas_target *cm_targ; 76 MPI2_REQUEST_DESCRIPTOR_UNION cm_desc; 77 u_int cm_flags; 78#define MPS_CM_FLAGS_POLLED (1 << 0) 79#define MPS_CM_FLAGS_COMPLETE (1 << 1) 80#define MPS_CM_FLAGS_SGE_SIMPLE (1 << 2) 81#define MPS_CM_FLAGS_DATAOUT (1 << 3) 82#define MPS_CM_FLAGS_DATAIN (1 << 4) 83#define MPS_CM_FLAGS_WAKEUP (1 << 5) 84#define MPS_CM_FLAGS_ACTIVE (1 << 6) 85 u_int cm_state; 86#define MPS_CM_STATE_FREE 0 87#define MPS_CM_STATE_BUSY 1 88#define MPS_CM_STATE_TIMEDOUT 2 89 bus_dmamap_t cm_dmamap; 90 struct scsi_sense_data *cm_sense; 91 TAILQ_HEAD(, mps_chain) cm_chain_list; 92 uint32_t cm_req_busaddr; 93 uint32_t cm_sense_busaddr; 94 struct callout cm_callout; 95}; 96 97struct mps_event_handle { 98 TAILQ_ENTRY(mps_event_handle) eh_list; 99 mps_evt_callback_t *callback; 100 void *data; 101 uint8_t mask[16]; 102}; 103 104struct mps_softc { 105 device_t mps_dev; 106 struct cdev *mps_cdev; 107 u_int mps_flags; 108#define MPS_FLAGS_INTX (1 << 0) 109#define MPS_FLAGS_MSI (1 << 1) 110#define MPS_FLAGS_BUSY (1 << 2) 111#define MPS_FLAGS_SHUTDOWN (1 << 3) 112 u_int mps_debug; 113 u_int allow_multiple_tm_cmds; 114 int tm_cmds_active; 115 struct sysctl_ctx_list sysctl_ctx; 116 struct sysctl_oid *sysctl_tree; 117 struct mps_command *commands; 118 struct mps_chain *chains; 119 struct callout periodic; 120 121 struct mpssas_softc *sassc; 122 123 TAILQ_HEAD(, mps_command) req_list; 124 TAILQ_HEAD(, mps_chain) chain_list; 125 TAILQ_HEAD(, mps_command) tm_list; 126 int replypostindex; 127 int replyfreeindex; 128 int replycurindex; 129 130 struct resource *mps_regs_resource; 131 bus_space_handle_t mps_bhandle; 132 bus_space_tag_t mps_btag; 133 int mps_regs_rid; 134 135 bus_dma_tag_t mps_parent_dmat; 136 bus_dma_tag_t buffer_dmat; 137 138 MPI2_IOC_FACTS_REPLY *facts; 139 MPI2_PORT_FACTS_REPLY *pfacts; 140 int num_reqs; 141 int num_replies; 142 int fqdepth; /* Free queue */ 143 int pqdepth; /* Post queue */ 144 145 uint8_t event_mask[16]; 146 TAILQ_HEAD(, mps_event_handle) event_list; 147 struct mps_event_handle *mps_log_eh; 148 149 struct mtx mps_mtx; 150 struct intr_config_hook mps_ich; 151 struct resource *mps_irq[MPS_MSI_COUNT]; 152 void *mps_intrhand[MPS_MSI_COUNT]; 153 int mps_irq_rid[MPS_MSI_COUNT]; 154 155 uint8_t *req_frames; 156 bus_addr_t req_busaddr; 157 bus_dma_tag_t req_dmat; 158 bus_dmamap_t req_map; 159 160 uint8_t *reply_frames; 161 bus_addr_t reply_busaddr; 162 bus_dma_tag_t reply_dmat; 163 bus_dmamap_t reply_map; 164 165 struct scsi_sense_data *sense_frames; 166 bus_addr_t sense_busaddr; 167 bus_dma_tag_t sense_dmat; 168 bus_dmamap_t sense_map; 169 170 uint8_t *chain_frames; 171 bus_addr_t chain_busaddr; 172 bus_dma_tag_t chain_dmat; 173 bus_dmamap_t chain_map; 174 175 MPI2_REPLY_DESCRIPTORS_UNION *post_queue; 176 bus_addr_t post_busaddr; 177 uint32_t *free_queue; 178 bus_addr_t free_busaddr; 179 bus_dma_tag_t queues_dmat; 180 bus_dmamap_t queues_map; 181}; 182 183struct mps_config_params { 184 MPI2_CONFIG_EXT_PAGE_HEADER_UNION hdr; 185 u_int action; 186 u_int page_address; /* Attributes, not a phys address */ 187 u_int status; 188 void *buffer; 189 u_int length; 190 int timeout; 191 void (*callback)(struct mps_softc *, struct mps_config_params *); 192 void *cbdata; 193}; 194 195static __inline uint32_t 196mps_regread(struct mps_softc *sc, uint32_t offset) 197{ 198 return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset)); 199} 200 201static __inline void 202mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val) 203{ 204 bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val); 205} 206 207static __inline void 208mps_free_reply(struct mps_softc *sc, uint32_t busaddr) 209{ 210 211 if (++sc->replyfreeindex >= sc->fqdepth) 212 sc->replyfreeindex = 0; 213 sc->free_queue[sc->replyfreeindex] = busaddr; 214 mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex); 215} 216 217static __inline struct mps_chain * 218mps_alloc_chain(struct mps_softc *sc) 219{ 220 struct mps_chain *chain; 221 222 if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) 223 TAILQ_REMOVE(&sc->chain_list, chain, chain_link); 224 return (chain); 225} 226 227static __inline void 228mps_free_chain(struct mps_softc *sc, struct mps_chain *chain) 229{ 230#if 0 231 bzero(chain->chain, 128); 232#endif 233 TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link); 234} 235 236static __inline void 237mps_free_command(struct mps_softc *sc, struct mps_command *cm) 238{ 239 struct mps_chain *chain, *chain_temp; 240 241 if (cm->cm_reply != NULL) 242 mps_free_reply(sc, cm->cm_reply_data); 243 cm->cm_flags = 0; 244 cm->cm_complete = NULL; 245 cm->cm_complete_data = NULL; 246 cm->cm_targ = 0; 247 cm->cm_state = MPS_CM_STATE_FREE; 248 TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) { 249 TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link); 250 mps_free_chain(sc, chain); 251 } 252 TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link); 253} 254 255static __inline struct mps_command * 256mps_alloc_command(struct mps_softc *sc) 257{ 258 struct mps_command *cm; 259 260 cm = TAILQ_FIRST(&sc->req_list); 261 if (cm == NULL) 262 return (NULL); 263 264 TAILQ_REMOVE(&sc->req_list, cm, cm_link); 265 KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n")); 266 cm->cm_state = MPS_CM_STATE_BUSY; 267 return (cm); 268} 269 270static __inline void 271mps_lock(struct mps_softc *sc) 272{ 273 mtx_lock(&sc->mps_mtx); 274} 275 276static __inline void 277mps_unlock(struct mps_softc *sc) 278{ 279 mtx_unlock(&sc->mps_mtx); 280} 281 282#define MPS_INFO (1 << 0) 283#define MPS_TRACE (1 << 1) 284#define MPS_FAULT (1 << 2) 285#define MPS_EVENT (1 << 3) 286#define MPS_LOG (1 << 4) 287 288#define mps_printf(sc, args...) \ 289 device_printf((sc)->mps_dev, ##args) 290 291#define mps_dprint(sc, level, msg, args...) \ 292do { \ 293 if (sc->mps_debug & level) \ 294 device_printf(sc->mps_dev, msg, ##args); \ 295} while (0) 296 297#define mps_dprint_field(sc, level, msg, args...) \ 298do { \ 299 if (sc->mps_debug & level) \ 300 printf("\t" msg, ##args); \ 301} while (0) 302 303#define MPS_PRINTFIELD_START(sc, tag...) \ 304 mps_dprint((sc), MPS_INFO, ##tag); \ 305 mps_dprint_field((sc), MPS_INFO, ":\n") 306#define MPS_PRINTFIELD_END(sc, tag) \ 307 mps_dprint((sc), MPS_INFO, tag "\n") 308#define MPS_PRINTFIELD(sc, facts, attr, fmt) \ 309 mps_dprint_field((sc), MPS_INFO, #attr ": " #fmt "\n", (facts)->attr) 310 311#define MPS_EVENTFIELD_START(sc, tag...) \ 312 mps_dprint((sc), MPS_EVENT, ##tag); \ 313 mps_dprint_field((sc), MPS_EVENT, ":\n") 314#define MPS_EVENTFIELD(sc, facts, attr, fmt) \ 315 mps_dprint_field((sc), MPS_EVENT, #attr ": " #fmt "\n", (facts)->attr) 316 317static __inline void 318mps_from_u64(uint64_t data, U64 *mps) 319{ 320 (mps)->High = (uint32_t)((data) >> 32); 321 (mps)->Low = (uint32_t)((data) & 0xffffffff); 322} 323 324static __inline uint64_t 325mps_to_u64(U64 *data) 326{ 327 328 return (((uint64_t)data->High << 32) | data->Low); 329} 330 331static __inline void 332mps_mask_intr(struct mps_softc *sc) 333{ 334 uint32_t mask; 335 336 mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET); 337 mask |= MPI2_HIM_REPLY_INT_MASK; 338 mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask); 339} 340 341static __inline void 342mps_unmask_intr(struct mps_softc *sc) 343{ 344 uint32_t mask; 345 346 mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET); 347 mask &= ~MPI2_HIM_REPLY_INT_MASK; 348 mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask); 349} 350 351int mps_pci_setup_interrupts(struct mps_softc *); 352int mps_attach(struct mps_softc *sc); 353int mps_free(struct mps_softc *sc); 354void mps_intr(void *); 355void mps_intr_msi(void *); 356void mps_intr_locked(void *); 357int mps_register_events(struct mps_softc *, uint8_t *, mps_evt_callback_t *, 358 void *, struct mps_event_handle **); 359int mps_update_events(struct mps_softc *, struct mps_event_handle *, uint8_t *); 360int mps_deregister_events(struct mps_softc *, struct mps_event_handle *); 361int mps_request_polled(struct mps_softc *sc, struct mps_command *cm); 362void mps_enqueue_request(struct mps_softc *, struct mps_command *); 363int mps_push_sge(struct mps_command *, void *, size_t, int); 364int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int); 365int mps_attach_sas(struct mps_softc *sc); 366int mps_detach_sas(struct mps_softc *sc); 367int mps_map_command(struct mps_softc *sc, struct mps_command *cm); 368int mps_read_config_page(struct mps_softc *, struct mps_config_params *); 369int mps_write_config_page(struct mps_softc *, struct mps_config_params *); 370void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int ); 371int mps_attach_user(struct mps_softc *); 372void mps_detach_user(struct mps_softc *); 373 374SYSCTL_DECL(_hw_mps); 375 376#endif 377 378