23 static inline uint8_t protocol_get_bmc_event_mask(struct mbox_context *context)  in protocol_get_bmc_event_mask()  argument
25 	if (context->version == API_VERSION_1) {  in protocol_get_bmc_event_mask()
40 int protocol_events_put(struct mbox_context *context,  in protocol_events_put()  argument
43 	const uint8_t mask = protocol_get_bmc_event_mask(context);  in protocol_events_put()
45 	return ops->put_events(context, mask);  in protocol_events_put()
55 int protocol_events_set(struct mbox_context *context, uint8_t bmc_event)  in protocol_events_set()  argument
57 	const uint8_t mask = protocol_get_bmc_event_mask(context);  in protocol_events_set()
64 	context->bmc_events |= bmc_event;  in protocol_events_set()
66 	return context->transport->set_events(context, bmc_event, mask);  in protocol_events_set()
77 int protocol_events_clear(struct mbox_context *context, uint8_t bmc_event)  in protocol_events_clear()  argument
79 	const uint8_t mask = protocol_get_bmc_event_mask(context);  in protocol_events_clear()
81 	context->bmc_events &= ~bmc_event;  in protocol_events_clear()
83 	return context->transport->clear_events(context, bmc_event, mask);  in protocol_events_clear()
86 static int protocol_negotiate_version(struct mbox_context *context,
89 static int protocol_v1_reset(struct mbox_context *context)  in protocol_v1_reset()  argument
91 	return __protocol_reset(context);  in protocol_v1_reset()
94 static int protocol_negotiate_version(struct mbox_context *context,
97 static int protocol_v1_get_info(struct mbox_context *context,  in protocol_v1_get_info()  argument
100 	uint8_t old_version = context->version;  in protocol_v1_get_info()
104 	rc = protocol_negotiate_version(context, io->req.api_version);  in protocol_v1_get_info()
111 		windows_reset_all(context);  in protocol_v1_get_info()
112 		return context->protocol->get_info(context, io);  in protocol_v1_get_info()
119 	context->backend.block_size_shift = BLOCK_SIZE_SHIFT_V1;  in protocol_v1_get_info()
121 		 1 << context->backend.block_size_shift, context->backend.block_size_shift);  in protocol_v1_get_info()
124 	windows_alloc_dirty_bytemap(context);  in protocol_v1_get_info()
127 		context->windows.default_size >> context->backend.block_size_shift;  in protocol_v1_get_info()
129 		context->windows.default_size >> context->backend.block_size_shift;  in protocol_v1_get_info()
131 	return lpc_map_memory(context);  in protocol_v1_get_info()
134 static int protocol_v1_get_flash_info(struct mbox_context *context,  in protocol_v1_get_flash_info()  argument
137 	io->resp.v1.flash_size = context->backend.flash_size;  in protocol_v1_get_flash_info()
138 	io->resp.v1.erase_size = 1 << context->backend.erase_size_shift;  in protocol_v1_get_flash_info()
149 static inline uint16_t get_lpc_addr_shifted(struct mbox_context *context)  in get_lpc_addr_shifted()  argument
154 	mem_offset = context->current->mem - context->mem;  in get_lpc_addr_shifted()
156 	lpc_addr = context->lpc_base + mem_offset;  in get_lpc_addr_shifted()
160 	return lpc_addr >> context->backend.block_size_shift;  in get_lpc_addr_shifted()
174 static void blktrace_flush_start(struct mbox_context *context)  in blktrace_flush_start()  argument
176 	struct blk_io_trace *trace = &context->trace;  in blktrace_flush_start()
179 	if (!context->blktracefd)  in blktrace_flush_start()
182 	if (!context->blktrace_start) {  in blktrace_flush_start()
184 		context->blktrace_start = blktrace_gettime();  in blktrace_flush_start()
189 	trace->time = blktrace_gettime() - context->blktrace_start;  in blktrace_flush_start()
190 	trace->sector = context->current->flash_offset / 512;  in blktrace_flush_start()
191 	trace->bytes = context->current->size;  in blktrace_flush_start()
192 	if (context->current_is_write)  in blktrace_flush_start()
201 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_flush_start()
203 	trace->time = blktrace_gettime() - context->blktrace_start;  in blktrace_flush_start()
206 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_flush_start()
209 static void blktrace_flush_done(struct mbox_context *context)  in blktrace_flush_done()  argument
211 	struct blk_io_trace *trace = &context->trace;  in blktrace_flush_done()
213 	if (!context->blktracefd)  in blktrace_flush_done()
217 	trace->time = blktrace_gettime() - context->blktrace_start;  in blktrace_flush_done()
220 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_flush_done()
223 static void blktrace_window_start(struct mbox_context *context)  in blktrace_window_start()  argument
225 	struct blk_io_trace *trace = &context->trace;  in blktrace_window_start()
227 	if (!context->blktracefd)  in blktrace_window_start()
230 	if (!context->blktrace_start)  in blktrace_window_start()
231 		context->blktrace_start = blktrace_gettime();  in blktrace_window_start()
235 	trace->time = blktrace_gettime() - context->blktrace_start;  in blktrace_window_start()
244 static void blktrace_window_done(struct mbox_context *context)  in blktrace_window_done()  argument
246 	struct blk_io_trace *trace = &context->trace;  in blktrace_window_done()
248 	if (!context->blktracefd)  in blktrace_window_done()
251 	trace->sector = context->current->flash_offset / 512;  in blktrace_window_done()
252 	trace->bytes = context->current->size;  in blktrace_window_done()
253 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_window_done()
257 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_window_done()
260 	trace->time = blktrace_gettime() - context->blktrace_start;  in blktrace_window_done()
263 	write(context->blktracefd, trace, sizeof(*trace));  in blktrace_window_done()
266 static int protocol_v1_create_window(struct mbox_context *context,  in protocol_v1_create_window()  argument
269 	struct backend *backend = &context->backend;  in protocol_v1_create_window()
283 	if (context->current) {  in protocol_v1_create_window()
290 		if (context->current_is_write) {  in protocol_v1_create_window()
291 			blktrace_flush_start(context);  in protocol_v1_create_window()
292 			rc = context->protocol->flush(context, NULL);  in protocol_v1_create_window()
293 			blktrace_flush_done(context);  in protocol_v1_create_window()
299 		windows_close_current(context, FLAGS_NONE);  in protocol_v1_create_window()
305 	blktrace_window_start(context);  in protocol_v1_create_window()
306 	context->current = windows_search(context, offset,  in protocol_v1_create_window()
307 					  context->version == API_VERSION_1);  in protocol_v1_create_window()
309 	if (!context->current) { /* No existing window */  in protocol_v1_create_window()
311 		rc = windows_create_map(context, &context->current,  in protocol_v1_create_window()
313 				       context->version == API_VERSION_1);  in protocol_v1_create_window()
320 	blktrace_window_done(context);  in protocol_v1_create_window()
322 	context->current_is_write = !io->req.ro;  in protocol_v1_create_window()
325 		 context->current->mem, context->current->size,  in protocol_v1_create_window()
326 		 context->current->flash_offset);  in protocol_v1_create_window()
328 	io->resp.lpc_address = get_lpc_addr_shifted(context);  in protocol_v1_create_window()
333 static int protocol_v1_mark_dirty(struct mbox_context *context,  in protocol_v1_mark_dirty()  argument
340 	if (!(context->current && context->current_is_write)) {  in protocol_v1_mark_dirty()
346 	off = offset - ((context->current->flash_offset) >>  in protocol_v1_mark_dirty()
347 			context->backend.block_size_shift);  in protocol_v1_mark_dirty()
351 				offset << context->backend.block_size_shift,  in protocol_v1_mark_dirty()
352 				context->current->flash_offset);  in protocol_v1_mark_dirty()
361 	size = align_up(size, 1 << context->backend.block_size_shift);  in protocol_v1_mark_dirty()
362 	size >>= context->backend.block_size_shift;  in protocol_v1_mark_dirty()
365 		 offset << context->backend.block_size_shift,  in protocol_v1_mark_dirty()
366 		 size << context->backend.block_size_shift);  in protocol_v1_mark_dirty()
368 	return window_set_bytemap(context, context->current, offset, size,  in protocol_v1_mark_dirty()
372 static int generic_flush(struct mbox_context *context)  in generic_flush()  argument
383 		 context->current->mem, context->current->size,  in generic_flush()
384 		 context->current->flash_offset);  in generic_flush()
391 	for (i = 0; i < (context->current->size >> context->backend.block_size_shift);  in generic_flush()
393 		uint8_t cur = context->current->dirty_bmap[i];  in generic_flush()
401 				rc = window_flush(context, offset, count,  in generic_flush()
411 				rc = window_flush(context, offset, count,  in generic_flush()
424 		rc = window_flush(context, offset, count, prev);  in generic_flush()
431 	return window_set_bytemap(context, context->current, 0,  in generic_flush()
432 				  context->current->size >>  in generic_flush()
433 				  context->backend.block_size_shift,  in generic_flush()
437 static int protocol_v1_flush(struct mbox_context *context,  in protocol_v1_flush()  argument
442 	if (!(context->current && context->current_is_write)) {  in protocol_v1_flush()
455 		rc = protocol_v1_mark_dirty(context, mdio);  in protocol_v1_flush()
461 	return generic_flush(context);  in protocol_v1_flush()
464 static int protocol_v1_close(struct mbox_context *context,  in protocol_v1_close()  argument
470 	if (!context->current) {  in protocol_v1_close()
475 	if (context->current_is_write) {  in protocol_v1_close()
476 		rc = protocol_v1_flush(context, NULL);  in protocol_v1_close()
484 	windows_close_current(context, io->req.flags);  in protocol_v1_close()
489 static int protocol_v1_ack(struct mbox_context *context,  in protocol_v1_ack()  argument
492 	return protocol_events_clear(context,  in protocol_v1_ack()
502 static uint16_t get_suggested_timeout(struct mbox_context *context)  in get_suggested_timeout()  argument
504 	struct window_context *window = windows_find_largest(context);  in get_suggested_timeout()
515 static int protocol_v2_get_info(struct mbox_context *context,  in protocol_v2_get_info()  argument
518 	uint8_t old_version = context->version;  in protocol_v2_get_info()
522 	rc = protocol_negotiate_version(context, io->req.api_version);  in protocol_v2_get_info()
529 		windows_reset_all(context);  in protocol_v2_get_info()
530 		return context->protocol->get_info(context, io);  in protocol_v2_get_info()
539 	windows_alloc_dirty_bytemap(context);  in protocol_v2_get_info()
541 	io->resp.v2.block_size_shift = context->backend.block_size_shift;  in protocol_v2_get_info()
543 		 1 << context->backend.block_size_shift, context->backend.block_size_shift);  in protocol_v2_get_info()
545 	io->resp.v2.timeout = get_suggested_timeout(context);  in protocol_v2_get_info()
547 	return lpc_map_memory(context);  in protocol_v2_get_info()
550 static int protocol_v2_get_flash_info(struct mbox_context *context,  in protocol_v2_get_flash_info()  argument
553 	struct backend *backend = &context->backend;  in protocol_v2_get_flash_info()
563 static int protocol_v2_create_window(struct mbox_context *context,  in protocol_v2_create_window()  argument
568 	rc = protocol_v1_create_window(context, io);  in protocol_v2_create_window()
572 	io->resp.size = context->current->size >> context->backend.block_size_shift;  in protocol_v2_create_window()
573 	io->resp.offset = context->current->flash_offset >>  in protocol_v2_create_window()
574 					context->backend.block_size_shift;  in protocol_v2_create_window()
579 static int protocol_v2_mark_dirty(struct mbox_context *context,  in protocol_v2_mark_dirty()  argument
582 	if (!(context->current && context->current_is_write)) {  in protocol_v2_mark_dirty()
588 		 io->req.v2.offset << context->backend.block_size_shift,  in protocol_v2_mark_dirty()
589 		 io->req.v2.size << context->backend.block_size_shift);  in protocol_v2_mark_dirty()
591 	return window_set_bytemap(context, context->current, io->req.v2.offset,  in protocol_v2_mark_dirty()
595 static int protocol_v2_erase(struct mbox_context *context,  in protocol_v2_erase()  argument
601 	if (!(context->current && context->current_is_write)) {  in protocol_v2_erase()
607 		 io->req.offset << context->backend.block_size_shift,  in protocol_v2_erase()
608 		 io->req.size << context->backend.block_size_shift);  in protocol_v2_erase()
610 	rc = window_set_bytemap(context, context->current, io->req.offset,  in protocol_v2_erase()
617 	start = io->req.offset << context->backend.block_size_shift;  in protocol_v2_erase()
618 	len = io->req.size << context->backend.block_size_shift;  in protocol_v2_erase()
619 	memset(context->current->mem + start, 0xFF, len);  in protocol_v2_erase()
624 static int protocol_v2_flush(struct mbox_context *context __attribute__((unused)),  in protocol_v2_flush()  argument
627 	if (!(context->current && context->current_is_write)) {  in protocol_v2_flush()
632 	return generic_flush(context);  in protocol_v2_flush()
635 static int protocol_v2_close(struct mbox_context *context,  in protocol_v2_close()  argument
641 	if (!context->current) {  in protocol_v2_close()
646 	if (context->current_is_write) {  in protocol_v2_close()
647 		rc = protocol_v2_flush(context, NULL);  in protocol_v2_close()
655 	windows_close_current(context, io->req.flags);  in protocol_v2_close()
690 static int protocol_negotiate_version(struct mbox_context *context,  in protocol_negotiate_version()  argument
697 	context->version = (requested > API_MAX_VERSION) ?  in protocol_negotiate_version()
700 	context->protocol = protocol_ops_map[context->version];  in protocol_negotiate_version()
702 	return context->version;  in protocol_negotiate_version()
705 int protocol_init(struct mbox_context *context)  in protocol_init()  argument
707 	protocol_negotiate_version(context, API_MAX_VERSION);  in protocol_init()
712 void protocol_free(struct mbox_context *context __attribute__((unused)))  in protocol_free()  argument
718 int __protocol_reset(struct mbox_context *context)  in __protocol_reset()  argument
723 	windows_reset_all(context);  in __protocol_reset()
725 	rc = backend_reset(&context->backend, context->mem, context->mem_size);  in __protocol_reset()
734 		return lpc_map_flash(context);  in __protocol_reset()
737 	return lpc_map_memory(context);  in __protocol_reset()
741 int protocol_reset(struct mbox_context *context)  in protocol_reset()  argument
745 	rc = protocol_events_clear(context, BMC_EVENT_DAEMON_READY);  in protocol_reset()
751 	rc = __protocol_reset(context);  in protocol_reset()
757 	rc = protocol_events_set(context,  in protocol_reset()