2 * Copyright (c) 2009 Yahoo! Inc.
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32 #define MPS_DB_MAX_WAIT 2500
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
44 #define MPS_PERIODIC_DELAY 1 /* 1 second heartbeat/watchdog check */
51 MALLOC_DECLARE(M_MPT2);
53 typedef void mps_evt_callback_t(struct mps_softc *, uintptr_t,
54 MPI2_EVENT_NOTIFICATION_REPLY *reply);
55 typedef void mps_command_callback_t(struct mps_softc *, struct mps_command *cm);
58 TAILQ_ENTRY(mps_chain) chain_link;
59 MPI2_SGE_IO_UNION *chain;
60 uint32_t chain_busaddr;
64 TAILQ_ENTRY(mps_command) cm_link;
65 struct mps_softc *cm_sc;
69 MPI2_SGE_IO_UNION *cm_sge;
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;
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)
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;
97 struct mps_event_handle {
98 TAILQ_ENTRY(mps_event_handle) eh_list;
99 mps_evt_callback_t *callback;
106 struct cdev *mps_cdev;
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)
113 u_int allow_multiple_tm_cmds;
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;
121 struct mpssas_softc *sassc;
123 TAILQ_HEAD(, mps_command) req_list;
124 TAILQ_HEAD(, mps_chain) chain_list;
125 TAILQ_HEAD(, mps_command) tm_list;
130 struct resource *mps_regs_resource;
131 bus_space_handle_t mps_bhandle;
132 bus_space_tag_t mps_btag;
135 bus_dma_tag_t mps_parent_dmat;
136 bus_dma_tag_t buffer_dmat;
138 MPI2_IOC_FACTS_REPLY *facts;
139 MPI2_PORT_FACTS_REPLY *pfacts;
142 int fqdepth; /* Free queue */
143 int pqdepth; /* Post queue */
145 uint8_t event_mask[16];
146 TAILQ_HEAD(, mps_event_handle) event_list;
147 struct mps_event_handle *mps_log_eh;
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];
156 bus_addr_t req_busaddr;
157 bus_dma_tag_t req_dmat;
158 bus_dmamap_t req_map;
160 uint8_t *reply_frames;
161 bus_addr_t reply_busaddr;
162 bus_dma_tag_t reply_dmat;
163 bus_dmamap_t reply_map;
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;
170 uint8_t *chain_frames;
171 bus_addr_t chain_busaddr;
172 bus_dma_tag_t chain_dmat;
173 bus_dmamap_t chain_map;
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;
183 struct mps_config_params {
184 MPI2_CONFIG_EXT_PAGE_HEADER_UNION hdr;
186 u_int page_address; /* Attributes, not a phys address */
191 void (*callback)(struct mps_softc *, struct mps_config_params *);
195 static __inline uint32_t
196 mps_regread(struct mps_softc *sc, uint32_t offset)
198 return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
202 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
204 bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
208 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
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);
217 static __inline struct mps_chain *
218 mps_alloc_chain(struct mps_softc *sc)
220 struct mps_chain *chain;
222 if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL)
223 TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
228 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
231 bzero(chain->chain, 128);
233 TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
237 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
239 struct mps_chain *chain, *chain_temp;
241 if (cm->cm_reply != NULL)
242 mps_free_reply(sc, cm->cm_reply_data);
244 cm->cm_complete = NULL;
245 cm->cm_complete_data = NULL;
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);
252 TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
255 static __inline struct mps_command *
256 mps_alloc_command(struct mps_softc *sc)
258 struct mps_command *cm;
260 cm = TAILQ_FIRST(&sc->req_list);
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;
271 mps_lock(struct mps_softc *sc)
273 mtx_lock(&sc->mps_mtx);
277 mps_unlock(struct mps_softc *sc)
279 mtx_unlock(&sc->mps_mtx);
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)
288 #define mps_printf(sc, args...) \
289 device_printf((sc)->mps_dev, ##args)
291 #define mps_dprint(sc, level, msg, args...) \
293 if (sc->mps_debug & level) \
294 device_printf(sc->mps_dev, msg, ##args); \
297 #define mps_dprint_field(sc, level, msg, args...) \
299 if (sc->mps_debug & level) \
300 printf("\t" msg, ##args); \
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)
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)
318 mps_from_u64(uint64_t data, U64 *mps)
320 (mps)->High = (uint32_t)((data) >> 32);
321 (mps)->Low = (uint32_t)((data) & 0xffffffff);
324 static __inline uint64_t
325 mps_to_u64(U64 *data)
328 return (((uint64_t)data->High << 32) | data->Low);
332 mps_mask_intr(struct mps_softc *sc)
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);
342 mps_unmask_intr(struct mps_softc *sc)
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);
351 int mps_pci_setup_interrupts(struct mps_softc *);
352 int mps_attach(struct mps_softc *sc);
353 int mps_free(struct mps_softc *sc);
354 void mps_intr(void *);
355 void mps_intr_msi(void *);
356 void mps_intr_locked(void *);
357 int mps_register_events(struct mps_softc *, uint8_t *, mps_evt_callback_t *,
358 void *, struct mps_event_handle **);
359 int mps_update_events(struct mps_softc *, struct mps_event_handle *, uint8_t *);
360 int mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
361 int mps_request_polled(struct mps_softc *sc, struct mps_command *cm);
362 int mps_attach_sas(struct mps_softc *sc);
363 int mps_detach_sas(struct mps_softc *sc);
364 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
365 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
366 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
367 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
368 int mps_attach_user(struct mps_softc *);
369 void mps_detach_user(struct mps_softc *);
371 SYSCTL_DECL(_hw_mps);