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 2048
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 * This needs to be at least 2 to support SMP passthrough.
66 #define MPS_IOVEC_COUNT 2
69 TAILQ_ENTRY(mps_command) cm_link;
70 struct mps_softc *cm_sc;
74 struct iovec cm_iovec[MPS_IOVEC_COUNT];
77 MPI2_SGE_IO_UNION *cm_sge;
80 uint32_t cm_reply_data;
81 mps_command_callback_t *cm_complete;
82 void *cm_complete_data;
83 struct mpssas_target *cm_targ;
84 MPI2_REQUEST_DESCRIPTOR_UNION cm_desc;
86 #define MPS_CM_FLAGS_POLLED (1 << 0)
87 #define MPS_CM_FLAGS_COMPLETE (1 << 1)
88 #define MPS_CM_FLAGS_SGE_SIMPLE (1 << 2)
89 #define MPS_CM_FLAGS_DATAOUT (1 << 3)
90 #define MPS_CM_FLAGS_DATAIN (1 << 4)
91 #define MPS_CM_FLAGS_WAKEUP (1 << 5)
92 #define MPS_CM_FLAGS_ACTIVE (1 << 6)
93 #define MPS_CM_FLAGS_USE_UIO (1 << 7)
94 #define MPS_CM_FLAGS_SMP_PASS (1 << 8)
95 #define MPS_CM_FLAGS_CHAIN_FAILED (1 << 9)
96 #define MPS_CM_FLAGS_ERROR_MASK MPS_CM_FLAGS_CHAIN_FAILED
98 #define MPS_CM_STATE_FREE 0
99 #define MPS_CM_STATE_BUSY 1
100 #define MPS_CM_STATE_TIMEDOUT 2
101 bus_dmamap_t cm_dmamap;
102 struct scsi_sense_data *cm_sense;
103 TAILQ_HEAD(, mps_chain) cm_chain_list;
104 uint32_t cm_req_busaddr;
105 uint32_t cm_sense_busaddr;
106 struct callout cm_callout;
109 struct mps_event_handle {
110 TAILQ_ENTRY(mps_event_handle) eh_list;
111 mps_evt_callback_t *callback;
118 struct cdev *mps_cdev;
120 #define MPS_FLAGS_INTX (1 << 0)
121 #define MPS_FLAGS_MSI (1 << 1)
122 #define MPS_FLAGS_BUSY (1 << 2)
123 #define MPS_FLAGS_SHUTDOWN (1 << 3)
124 #define MPS_FLAGS_ATTACH_DONE (1 << 4)
126 u_int allow_multiple_tm_cmds;
129 int io_cmds_highwater;
131 int chain_free_lowwater;
132 uint64_t chain_alloc_fail;
133 struct sysctl_ctx_list sysctl_ctx;
134 struct sysctl_oid *sysctl_tree;
135 struct mps_command *commands;
136 struct mps_chain *chains;
137 struct callout periodic;
139 struct mpssas_softc *sassc;
141 TAILQ_HEAD(, mps_command) req_list;
142 TAILQ_HEAD(, mps_chain) chain_list;
143 TAILQ_HEAD(, mps_command) tm_list;
144 TAILQ_HEAD(, mps_command) io_list;
148 struct resource *mps_regs_resource;
149 bus_space_handle_t mps_bhandle;
150 bus_space_tag_t mps_btag;
153 bus_dma_tag_t mps_parent_dmat;
154 bus_dma_tag_t buffer_dmat;
156 MPI2_IOC_FACTS_REPLY *facts;
157 MPI2_PORT_FACTS_REPLY *pfacts;
160 int fqdepth; /* Free queue */
161 int pqdepth; /* Post queue */
163 uint8_t event_mask[16];
164 TAILQ_HEAD(, mps_event_handle) event_list;
165 struct mps_event_handle *mps_log_eh;
168 struct intr_config_hook mps_ich;
169 struct resource *mps_irq[MPS_MSI_COUNT];
170 void *mps_intrhand[MPS_MSI_COUNT];
171 int mps_irq_rid[MPS_MSI_COUNT];
174 bus_addr_t req_busaddr;
175 bus_dma_tag_t req_dmat;
176 bus_dmamap_t req_map;
178 uint8_t *reply_frames;
179 bus_addr_t reply_busaddr;
180 bus_dma_tag_t reply_dmat;
181 bus_dmamap_t reply_map;
183 struct scsi_sense_data *sense_frames;
184 bus_addr_t sense_busaddr;
185 bus_dma_tag_t sense_dmat;
186 bus_dmamap_t sense_map;
188 uint8_t *chain_frames;
189 bus_addr_t chain_busaddr;
190 bus_dma_tag_t chain_dmat;
191 bus_dmamap_t chain_map;
193 MPI2_REPLY_DESCRIPTORS_UNION *post_queue;
194 bus_addr_t post_busaddr;
195 uint32_t *free_queue;
196 bus_addr_t free_busaddr;
197 bus_dma_tag_t queues_dmat;
198 bus_dmamap_t queues_map;
201 struct mps_config_params {
202 MPI2_CONFIG_EXT_PAGE_HEADER_UNION hdr;
204 u_int page_address; /* Attributes, not a phys address */
209 void (*callback)(struct mps_softc *, struct mps_config_params *);
213 static __inline uint32_t
214 mps_regread(struct mps_softc *sc, uint32_t offset)
216 return (bus_space_read_4(sc->mps_btag, sc->mps_bhandle, offset));
220 mps_regwrite(struct mps_softc *sc, uint32_t offset, uint32_t val)
222 bus_space_write_4(sc->mps_btag, sc->mps_bhandle, offset, val);
226 mps_free_reply(struct mps_softc *sc, uint32_t busaddr)
229 if (++sc->replyfreeindex >= sc->fqdepth)
230 sc->replyfreeindex = 0;
231 sc->free_queue[sc->replyfreeindex] = busaddr;
232 mps_regwrite(sc, MPI2_REPLY_FREE_HOST_INDEX_OFFSET, sc->replyfreeindex);
235 static __inline struct mps_chain *
236 mps_alloc_chain(struct mps_softc *sc)
238 struct mps_chain *chain;
240 if ((chain = TAILQ_FIRST(&sc->chain_list)) != NULL) {
241 TAILQ_REMOVE(&sc->chain_list, chain, chain_link);
243 if (sc->chain_free < sc->chain_free_lowwater)
244 sc->chain_free_lowwater = sc->chain_free;
246 sc->chain_alloc_fail++;
251 mps_free_chain(struct mps_softc *sc, struct mps_chain *chain)
254 bzero(chain->chain, 128);
257 TAILQ_INSERT_TAIL(&sc->chain_list, chain, chain_link);
261 mps_free_command(struct mps_softc *sc, struct mps_command *cm)
263 struct mps_chain *chain, *chain_temp;
265 if (cm->cm_reply != NULL) {
266 mps_free_reply(sc, cm->cm_reply_data);
270 cm->cm_complete = NULL;
271 cm->cm_complete_data = NULL;
274 cm->cm_state = MPS_CM_STATE_FREE;
275 TAILQ_FOREACH_SAFE(chain, &cm->cm_chain_list, chain_link, chain_temp) {
276 TAILQ_REMOVE(&cm->cm_chain_list, chain, chain_link);
277 mps_free_chain(sc, chain);
279 TAILQ_INSERT_TAIL(&sc->req_list, cm, cm_link);
282 static __inline struct mps_command *
283 mps_alloc_command(struct mps_softc *sc)
285 struct mps_command *cm;
287 cm = TAILQ_FIRST(&sc->req_list);
291 TAILQ_REMOVE(&sc->req_list, cm, cm_link);
292 KASSERT(cm->cm_state == MPS_CM_STATE_FREE, ("mps: Allocating busy command\n"));
293 cm->cm_state = MPS_CM_STATE_BUSY;
298 mps_lock(struct mps_softc *sc)
300 mtx_lock(&sc->mps_mtx);
304 mps_unlock(struct mps_softc *sc)
306 mtx_unlock(&sc->mps_mtx);
309 #define MPS_INFO (1 << 0)
310 #define MPS_TRACE (1 << 1)
311 #define MPS_FAULT (1 << 2)
312 #define MPS_EVENT (1 << 3)
313 #define MPS_LOG (1 << 4)
315 #define mps_printf(sc, args...) \
316 device_printf((sc)->mps_dev, ##args)
318 #define mps_dprint(sc, level, msg, args...) \
320 if (sc->mps_debug & level) \
321 device_printf(sc->mps_dev, msg, ##args); \
324 #define mps_dprint_field(sc, level, msg, args...) \
326 if (sc->mps_debug & level) \
327 printf("\t" msg, ##args); \
330 #define MPS_PRINTFIELD_START(sc, tag...) \
331 mps_dprint((sc), MPS_INFO, ##tag); \
332 mps_dprint_field((sc), MPS_INFO, ":\n")
333 #define MPS_PRINTFIELD_END(sc, tag) \
334 mps_dprint((sc), MPS_INFO, tag "\n")
335 #define MPS_PRINTFIELD(sc, facts, attr, fmt) \
336 mps_dprint_field((sc), MPS_INFO, #attr ": " #fmt "\n", (facts)->attr)
338 #define MPS_EVENTFIELD_START(sc, tag...) \
339 mps_dprint((sc), MPS_EVENT, ##tag); \
340 mps_dprint_field((sc), MPS_EVENT, ":\n")
341 #define MPS_EVENTFIELD(sc, facts, attr, fmt) \
342 mps_dprint_field((sc), MPS_EVENT, #attr ": " #fmt "\n", (facts)->attr)
345 mps_from_u64(uint64_t data, U64 *mps)
347 (mps)->High = (uint32_t)((data) >> 32);
348 (mps)->Low = (uint32_t)((data) & 0xffffffff);
351 static __inline uint64_t
352 mps_to_u64(U64 *data)
355 return (((uint64_t)data->High << 32) | data->Low);
359 mps_mask_intr(struct mps_softc *sc)
363 mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
364 mask |= MPI2_HIM_REPLY_INT_MASK;
365 mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
369 mps_unmask_intr(struct mps_softc *sc)
373 mask = mps_regread(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET);
374 mask &= ~MPI2_HIM_REPLY_INT_MASK;
375 mps_regwrite(sc, MPI2_HOST_INTERRUPT_MASK_OFFSET, mask);
378 int mps_pci_setup_interrupts(struct mps_softc *);
379 int mps_attach(struct mps_softc *sc);
380 int mps_free(struct mps_softc *sc);
381 void mps_intr(void *);
382 void mps_intr_msi(void *);
383 void mps_intr_locked(void *);
384 int mps_register_events(struct mps_softc *, uint8_t *, mps_evt_callback_t *,
385 void *, struct mps_event_handle **);
386 int mps_update_events(struct mps_softc *, struct mps_event_handle *, uint8_t *);
387 int mps_deregister_events(struct mps_softc *, struct mps_event_handle *);
388 int mps_request_polled(struct mps_softc *sc, struct mps_command *cm);
389 void mps_enqueue_request(struct mps_softc *, struct mps_command *);
390 int mps_push_sge(struct mps_command *, void *, size_t, int);
391 int mps_add_dmaseg(struct mps_command *, vm_paddr_t, size_t, u_int, int);
392 int mps_attach_sas(struct mps_softc *sc);
393 int mps_detach_sas(struct mps_softc *sc);
394 int mps_map_command(struct mps_softc *sc, struct mps_command *cm);
395 int mps_read_config_page(struct mps_softc *, struct mps_config_params *);
396 int mps_write_config_page(struct mps_softc *, struct mps_config_params *);
397 void mps_memaddr_cb(void *, bus_dma_segment_t *, int , int );
398 void mpi_init_sge(struct mps_command *cm, void *req, void *sge);
399 int mps_attach_user(struct mps_softc *);
400 void mps_detach_user(struct mps_softc *);
402 SYSCTL_DECL(_hw_mps);