drivers/scsi/ipr.c

2753  * @start_addr:			adapter address to dump
2755  * @length_in_words:		length to dump in 4 byte words
2778  * @start_addr:			adapter address to dump
2780  * @length_in_words:	length to dump in 4 byte words
2804 			"IOA dump long data transfer timeout\n");
2824 				"IOA dump short data transfer timeout\n");
2834 			/* Signal dump data received - Clear IO debug Ack */
2847 	/* Signal dump data received - Clear IO debug Ack */
2885 	struct ipr_ioa_dump *ioa_dump = &ioa_cfg->dump->ioa_dump;
2938  * ipr_init_dump_entry_hdr - Initialize a dump entry header.
2939  * @hdr:	dump entry header struct
2953  * ipr_dump_ioa_type_data - Fill in the adapter type in the dump.
2955  * @driver_dump:	driver dump struct
2979  * ipr_dump_version_data - Fill in the driver version in the dump.
2981  * @driver_dump:	driver dump struct
3000  * ipr_dump_trace_data - Fill in the IOA trace in the dump.
3002  * @driver_dump:	driver dump struct
3021  * ipr_dump_location_data - Fill in the IOA location in the dump.
3023  * @driver_dump:	driver dump struct
3042  * ipr_get_ioa_dump - Perform a dump of the driver and adapter.
3044  * @dump:		dump struct
3049 static void ipr_get_ioa_dump(struct ipr_ioa_cfg *ioa_cfg, struct ipr_dump *dump)
3053 	struct ipr_driver_dump *driver_dump = &dump->driver_dump;
3054 	struct ipr_ioa_dump *ioa_dump = &dump->ioa_dump;
3080 			"Invalid dump table format: %lx\n", start_addr);
3089 	/* Initialize the overall dump header */
3111 	/* First entries in sdt are actually a list of dump addresses and
3112 	 lengths to gather the real dump data.  sdt represents the pointer
3113 	 to the ioa generated dump table.  Dump data will be extracted based
3147 	/* Update dump length to the actual data to be copied */
3148 	dump->driver_dump.hdr.len += sizeof(struct ipr_sdt_header);
3150 		dump->driver_dump.hdr.len += num_entries * sizeof(struct ipr_sdt_entry);
3152 		dump->driver_dump.hdr.len += max_num_entries * sizeof(struct ipr_sdt_entry);
3205 #define ipr_get_ioa_dump(ioa_cfg, dump) do { } while (0)
3209  * ipr_release_dump - Free adapter dump memory
3217 	struct ipr_dump *dump = container_of(kref, struct ipr_dump, kref);
3218 	struct ipr_ioa_cfg *ioa_cfg = dump->ioa_cfg;
3224 	ioa_cfg->dump = NULL;
3228 	for (i = 0; i < dump->ioa_dump.next_page_index; i++)
3229 		free_page((unsigned long) dump->ioa_dump.ioa_data[i]);
3231 	vfree(dump->ioa_dump.ioa_data);
3232 	kfree(dump);
3309 	struct ipr_dump *dump;
3317 		dump = ioa_cfg->dump;
3318 		if (!dump) {
3322 		kref_get(&dump->kref);
3324 		ipr_get_ioa_dump(ioa_cfg, dump);
3325 		kref_put(&dump->kref, ipr_release_dump);
4181 	struct ipr_dump *dump;
4191 	dump = ioa_cfg->dump;
4193 	if (ioa_cfg->sdt_state != DUMP_OBTAINED || !dump) {
4197 	kref_get(&dump->kref);
4200 	if (off > dump->driver_dump.hdr.len) {
4201 		kref_put(&dump->kref, ipr_release_dump);
4205 	if (off + count > dump->driver_dump.hdr.len) {
4206 		count = dump->driver_dump.hdr.len - off;
4210 	if (count && off < sizeof(dump->driver_dump)) {
4211 		if (off + count > sizeof(dump->driver_dump))
4212 			len = sizeof(dump->driver_dump) - off;
4215 		src = (u8 *)&dump->driver_dump + off;
4222 	off -= sizeof(dump->driver_dump);
4226 			  (be32_to_cpu(dump->ioa_dump.sdt.hdr.num_entries_used) *
4237 		src = (u8 *)&dump->ioa_dump + off;
4251 		src = (u8 *)dump->ioa_dump.ioa_data[(off & PAGE_MASK) >> PAGE_SHIFT];
4259 	kref_put(&dump->kref, ipr_release_dump);
4264  * ipr_alloc_dump - Prepare for adapter dump
4272 	struct ipr_dump *dump;
4276 	dump = kzalloc(sizeof(struct ipr_dump), GFP_KERNEL);
4278 	if (!dump) {
4292 		kfree(dump);
4296 	dump->ioa_dump.ioa_data = ioa_data;
4298 	kref_init(&dump->kref);
4299 	dump->ioa_cfg = ioa_cfg;
4305 		vfree(dump->ioa_dump.ioa_data);
4306 		kfree(dump);
4310 	ioa_cfg->dump = dump;
4322  * ipr_free_dump - Free adapter dump memory
4330 	struct ipr_dump *dump;
4336 	dump = ioa_cfg->dump;
4337 	if (!dump) {
4342 	ioa_cfg->dump = NULL;
4345 	kref_put(&dump->kref, ipr_release_dump);
4352  * ipr_write_dump - Setup dump state of adapter
4390 		.name = "dump",
7681  * ipr_reset_wait_for_dump - Wait for a dump to timeout.
7684  * This function is invoked when an adapter dump has run out
7852  * fetches the dump/unit check if applicable to this reset.