hpsa: add masked physical devices into h->dev[] array (41ce4c35) · Commits · e / devices / android_kernel_fairphone_FP5

drivers/scsi/hpsa.c

+132 −121

Original line number	Diff line number	Diff line
		@@ -222,6 +222,7 @@ static int hpsa_change_queue_depth(struct scsi_device *sdev, int qdepth);
		static int hpsa_eh_device_reset_handler(struct scsi_cmnd *scsicmd);
		static int hpsa_eh_abort_handler(struct scsi_cmnd *scsicmd);
		static int hpsa_slave_alloc(struct scsi_device *sdev);
		static int hpsa_slave_configure(struct scsi_device *sdev);
		static void hpsa_slave_destroy(struct scsi_device *sdev);

		static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno);
		@@ -667,6 +668,9 @@ static struct device_attribute *hpsa_shost_attrs[] = {
		NULL,
		};

		#define HPSA_NRESERVED_CMDS (HPSA_CMDS_RESERVED_FOR_ABORTS + \
		HPSA_CMDS_RESERVED_FOR_DRIVER + HPSA_MAX_CONCURRENT_PASSTHRUS)

		static struct scsi_host_template hpsa_driver_template = {
		.module = THIS_MODULE,
		.name = HPSA,
		@@ -681,6 +685,7 @@ static struct scsi_host_template hpsa_driver_template = {
		.eh_device_reset_handler = hpsa_eh_device_reset_handler,
		.ioctl = hpsa_ioctl,
		.slave_alloc = hpsa_slave_alloc,
		.slave_configure = hpsa_slave_configure,
		.slave_destroy = hpsa_slave_destroy,
		#ifdef CONFIG_COMPAT
		.compat_ioctl = hpsa_compat_ioctl,
		@@ -946,6 +951,8 @@ static int hpsa_scsi_add_entry(struct ctlr_info *h, int hostno,

		h->dev[n] = device;
		h->ndevices++;
		device->offload_to_be_enabled = device->offload_enabled;
		device->offload_enabled = 0;
		added[*nadded] = device;
		(*nadded)++;

		@@ -982,16 +989,20 @@ static void hpsa_scsi_update_entry(struct ctlr_info *h, int hostno,
		*/
		h->dev[entry]->raid_map = new_entry->raid_map;
		h->dev[entry]->ioaccel_handle = new_entry->ioaccel_handle;
		wmb(); /* ensure raid map updated prior to ->offload_enabled */
		}
		h->dev[entry]->offload_config = new_entry->offload_config;
		h->dev[entry]->offload_to_mirror = new_entry->offload_to_mirror;
		h->dev[entry]->offload_enabled = new_entry->offload_enabled;
		h->dev[entry]->queue_depth = new_entry->queue_depth;

		dev_info(&h->pdev->dev, "%s device c%db%dt%dl%d updated.\n",
		scsi_device_type(new_entry->devtype), hostno, new_entry->bus,
		new_entry->target, new_entry->lun);
		/*
		* We can turn off ioaccel offload now, but need to delay turning
		* it on until we can update h->dev[entry]->phys_disk[], but we
		* can't do that until all the devices are updated.
		*/
		h->dev[entry]->offload_to_be_enabled = new_entry->offload_enabled;
		if (!new_entry->offload_enabled)
		h->dev[entry]->offload_enabled = 0;

		}

		/* Replace an entry from h->dev[] array. */
		@@ -1014,6 +1025,8 @@ static void hpsa_scsi_replace_entry(struct ctlr_info *h, int hostno,
		new_entry->lun = h->dev[entry]->lun;
		}

		new_entry->offload_to_be_enabled = new_entry->offload_enabled;
		new_entry->offload_enabled = 0;
		h->dev[entry] = new_entry;
		added[*nadded] = new_entry;
		(*nadded)++;
		@@ -1312,7 +1325,8 @@ static void hpsa_figure_phys_disk_ptrs(struct ctlr_info *h,
		*/
		if (!logical_drive->phys_disk[i]) {
		logical_drive->offload_enabled = 0;
		logical_drive->queue_depth = h->nr_cmds;
		logical_drive->offload_to_be_enabled = 0;
		logical_drive->queue_depth = 8;
		}
		}
		if (nraid_map_entries)
		@@ -1335,6 +1349,16 @@ static void hpsa_update_log_drive_phys_drive_ptrs(struct ctlr_info *h,
		continue;
		if (!is_logical_dev_addr_mode(dev[i]->scsi3addr))
		continue;

		/*
		* If offload is currently enabled, the RAID map and
		* phys_disk[] assignment better not be changing
		* and since it isn't changing, we do not need to
		* update it.
		*/
		if (dev[i]->offload_enabled)
		continue;

		hpsa_figure_phys_disk_ptrs(h, dev, ndevices, dev[i]);
		}
		}
		@@ -1433,6 +1457,14 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
		/* but if it does happen, we just ignore that device */
		}
		}
		hpsa_update_log_drive_phys_drive_ptrs(h, h->dev, h->ndevices);

		/* Now that h->dev[]->phys_disk[] is coherent, we can enable
		* any logical drives that need it enabled.
		*/
		for (i = 0; i < h->ndevices; i++)
		h->dev[i]->offload_enabled = h->dev[i]->offload_to_be_enabled;

		spin_unlock_irqrestore(&h->devlock, flags);

		/* Monitor devices which are in one of several NOT READY states to be
		@@ -1456,6 +1488,7 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
		sh = h->scsi_host;
		/* Notify scsi mid layer of any removed devices */
		for (i = 0; i < nremoved; i++) {
		if (removed[i]->expose_state & HPSA_SCSI_ADD) {
		struct scsi_device *sdev =
		scsi_device_lookup(sh, removed[i]->bus,
		removed[i]->target, removed[i]->lun);
		@@ -1463,20 +1496,25 @@ static void adjust_hpsa_scsi_table(struct ctlr_info *h, int hostno,
		scsi_remove_device(sdev);
		scsi_device_put(sdev);
		} else {
		/* We don't expect to get here.
		/*
		* We don't expect to get here.
		* future cmds to this device will get selection
		* timeout as if the device was gone.
		*/
		dev_warn(&h->pdev->dev, "didn't find c%db%dt%dl%d "
		" for removal.", hostno, removed[i]->bus,
		dev_warn(&h->pdev->dev,
		"didn't find c%db%dt%dl%d for removal.\n",
		hostno, removed[i]->bus,
		removed[i]->target, removed[i]->lun);
		}
		}
		kfree(removed[i]);
		removed[i] = NULL;
		}

		/* Notify scsi mid layer of any added devices */
		for (i = 0; i < nadded; i++) {
		if (!(added[i]->expose_state & HPSA_SCSI_ADD))
		continue;
		if (scsi_add_device(sh, added[i]->bus,
		added[i]->target, added[i]->lun) == 0)
		continue;
		@@ -1512,7 +1550,6 @@ static struct hpsa_scsi_dev_t lookup_hpsa_scsi_dev(struct ctlr_info h,
		return NULL;
		}

		/* link sdev->hostdata to our per-device structure. */
		static int hpsa_slave_alloc(struct scsi_device *sdev)
		{
		struct hpsa_scsi_dev_t *sd;
		@@ -1523,16 +1560,35 @@ static int hpsa_slave_alloc(struct scsi_device *sdev)
		spin_lock_irqsave(&h->devlock, flags);
		sd = lookup_hpsa_scsi_dev(h, sdev_channel(sdev),
		sdev_id(sdev), sdev->lun);
		if (sd != NULL) {
		sdev->hostdata = sd;
		if (sd->queue_depth)
		scsi_change_queue_depth(sdev, sd->queue_depth);
		if (likely(sd)) {
		atomic_set(&sd->ioaccel_cmds_out, 0);
		}
		sdev->hostdata = (sd->expose_state & HPSA_SCSI_ADD) ? sd : NULL;
		} else
		sdev->hostdata = NULL;
		spin_unlock_irqrestore(&h->devlock, flags);
		return 0;
		}

		/* configure scsi device based on internal per-device structure */
		static int hpsa_slave_configure(struct scsi_device *sdev)
		{
		struct hpsa_scsi_dev_t *sd;
		int queue_depth;

		sd = sdev->hostdata;
		sdev->no_uld_attach = !sd \|\| !(sd->expose_state & HPSA_ULD_ATTACH);

		if (sd)
		queue_depth = sd->queue_depth != 0 ?
		sd->queue_depth : sdev->host->can_queue;
		else
		queue_depth = sdev->host->can_queue;

		scsi_change_queue_depth(sdev, queue_depth);

		return 0;
		}

		static void hpsa_slave_destroy(struct scsi_device *sdev)
		{
		/* nothing to do. */
		@@ -2438,6 +2494,7 @@ static void hpsa_get_ioaccel_status(struct ctlr_info *h,

		this_device->offload_config = 0;
		this_device->offload_enabled = 0;
		this_device->offload_to_be_enabled = 0;

		buf = kzalloc(64, GFP_KERNEL);
		if (!buf)
		@@ -2461,6 +2518,7 @@ static void hpsa_get_ioaccel_status(struct ctlr_info *h,
		if (hpsa_get_raid_map(h, scsi3addr, this_device))
		this_device->offload_enabled = 0;
		}
		this_device->offload_to_be_enabled = this_device->offload_enabled;
		out:
		kfree(buf);
		return;
		@@ -2708,6 +2766,7 @@ static int hpsa_update_device_info(struct ctlr_info *h,
		this_device->raid_level = RAID_UNKNOWN;
		this_device->offload_config = 0;
		this_device->offload_enabled = 0;
		this_device->offload_to_be_enabled = 0;
		this_device->volume_offline = 0;
		this_device->queue_depth = h->nr_cmds;
		}
		@@ -2850,88 +2909,23 @@ static int add_ext_target_dev(struct ctlr_info *h,
		static int hpsa_get_pdisk_of_ioaccel2(struct ctlr_info *h,
		struct CommandList ioaccel2_cmd_to_abort, unsigned char scsi3addr)
		{
		struct ReportExtendedLUNdata *physicals = NULL;
		int responsesize = 24; /* size of physical extended response */
		int reportsize = sizeof(physicals) + HPSA_MAX_PHYS_LUN responsesize;
		u32 nphysicals = 0; /* number of reported physical devs */
		int found = 0; /* found match (1) or not (0) */
		u32 find; /* handle we need to match */
		struct io_accel2_cmd *c2 =
		&h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex];
		unsigned long flags;
		int i;
		struct scsi_cmnd scmd; / scsi command within request being aborted */
		struct hpsa_scsi_dev_t d; / device of request being aborted */
		struct io_accel2_cmd c2a; / ioaccel2 command to abort */
		__le32 it_nexus; /* 4 byte device handle for the ioaccel2 cmd */
		__le32 scsi_nexus; /* 4 byte device handle for the ioaccel2 cmd */

		if (ioaccel2_cmd_to_abort->cmd_type != CMD_IOACCEL2)
		return 0; /* no match */

		/* point to the ioaccel2 device handle */
		c2a = &h->ioaccel2_cmd_pool[ioaccel2_cmd_to_abort->cmdindex];
		if (c2a == NULL)
		return 0; /* no match */

		scmd = (struct scsi_cmnd *) ioaccel2_cmd_to_abort->scsi_cmd;
		if (scmd == NULL)
		return 0; /* no match */

		d = scmd->device->hostdata;
		if (d == NULL)
		return 0; /* no match */

		it_nexus = cpu_to_le32(d->ioaccel_handle);
		scsi_nexus = c2a->scsi_nexus;
		find = le32_to_cpu(c2a->scsi_nexus);

		if (h->raid_offload_debug > 0)
		dev_info(&h->pdev->dev,
		"%s: scsi_nexus:0x%08x device id: 0x%02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x %02x%02x%02x%02x\n",
		__func__, scsi_nexus,
		d->device_id[0], d->device_id[1], d->device_id[2],
		d->device_id[3], d->device_id[4], d->device_id[5],
		d->device_id[6], d->device_id[7], d->device_id[8],
		d->device_id[9], d->device_id[10], d->device_id[11],
		d->device_id[12], d->device_id[13], d->device_id[14],
		d->device_id[15]);

		/* Get the list of physical devices */
		physicals = kzalloc(reportsize, GFP_KERNEL);
		if (physicals == NULL)
		return 0;
		if (hpsa_scsi_do_report_phys_luns(h, physicals, reportsize)) {
		dev_err(&h->pdev->dev,
		"Can't lookup %s device handle: report physical LUNs failed.\n",
		"HP SSD Smart Path");
		kfree(physicals);
		return 0;
		}
		nphysicals = be32_to_cpu(((__be32 )physicals->LUNListLength)) /
		responsesize;

		/* find ioaccel2 handle in list of physicals: */
		for (i = 0; i < nphysicals; i++) {
		struct ext_report_lun_entry *entry = &physicals->LUN[i];

		/* handle is in bytes 28-31 of each lun */
		if (entry->ioaccel_handle != find)
		continue; /* didn't match */
		found = 1;
		memcpy(scsi3addr, entry->lunid, 8);
		if (h->raid_offload_debug > 0)
		dev_info(&h->pdev->dev,
		"%s: Searched h=0x%08x, Found h=0x%08x, scsiaddr 0x%8phN\n",
		__func__, find,
		entry->ioaccel_handle, scsi3addr);
		break; /* found it */
		}

		kfree(physicals);
		if (found)
		spin_lock_irqsave(&h->devlock, flags);
		for (i = 0; i < h->ndevices; i++)
		if (h->dev[i]->ioaccel_handle == le32_to_cpu(c2->scsi_nexus)) {
		memcpy(scsi3addr, h->dev[i]->scsi3addr,
		sizeof(h->dev[i]->scsi3addr));
		spin_unlock_irqrestore(&h->devlock, flags);
		return 1;
		else
		}
		spin_unlock_irqrestore(&h->devlock, flags);
		return 0;

		}

		/*
		* Do CISS_REPORT_PHYS and CISS_REPORT_LOG. Data is returned in physdev,
		* logdev. The number of luns in physdev and logdev are returned in
		@@ -3142,9 +3136,11 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
		/* Figure out where the LUN ID info is coming from */
		lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
		i, nphysicals, nlogicals, physdev_list, logdev_list);
		/* skip masked physical devices. */
		if (lunaddrbytes[3] & 0xC0 &&
		i < nphysicals + (raid_ctlr_position == 0))

		/* skip masked non-disk devices */
		if (MASKED_DEVICE(lunaddrbytes))
		if (i < nphysicals + (raid_ctlr_position == 0) &&
		NON_DISK_PHYS_DEV(lunaddrbytes))
		continue;

		/* Get device type, vendor, model, device id */
		@@ -3170,6 +3166,18 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)

		this_device = tmpdevice;

		/* do not expose masked devices */
		if (MASKED_DEVICE(lunaddrbytes) &&
		i < nphysicals + (raid_ctlr_position == 0)) {
		if (h->hba_mode_enabled)
		dev_warn(&h->pdev->dev,
		"Masked physical device detected\n");
		this_device->expose_state = HPSA_DO_NOT_EXPOSE;
		} else {
		this_device->expose_state =
		HPSA_SG_ATTACH \| HPSA_ULD_ATTACH;
		}

		switch (this_device->devtype) {
		case TYPE_ROM:
		/* We don't really support actual CD-ROM devices,
		@@ -3211,6 +3219,10 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
		case TYPE_MEDIUM_CHANGER:
		ncurrent++;
		break;
		case TYPE_ENCLOSURE:
		if (h->hba_mode_enabled)
		ncurrent++;
		break;
		case TYPE_RAID:
		/* Only present the Smartarray HBA as a RAID controller.
		* If it's a RAID controller other than the HBA itself
		@@ -3227,7 +3239,6 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h, int hostno)
		if (ncurrent >= HPSA_MAX_DEVICES)
		break;
		}
		hpsa_update_log_drive_phys_drive_ptrs(h, currentsd, ncurrent);
		adjust_hpsa_scsi_table(h, hostno, currentsd, ncurrent);
		out:
		kfree(tmpdevice);
		@@ -4252,10 +4263,7 @@ static int hpsa_register_scsi(struct ctlr_info *h)
		sh->max_cmd_len = MAX_COMMAND_SIZE;
		sh->max_lun = HPSA_MAX_LUN;
		sh->max_id = HPSA_MAX_LUN;
		sh->can_queue = h->nr_cmds -
		HPSA_CMDS_RESERVED_FOR_ABORTS -
		HPSA_CMDS_RESERVED_FOR_DRIVER -
		HPSA_MAX_CONCURRENT_PASSTHRUS;
		sh->can_queue = h->nr_cmds - HPSA_NRESERVED_CMDS;
		sh->cmd_per_lun = sh->can_queue;
		sh->sg_tablesize = h->maxsgentries;
		h->scsi_host = sh;
		@@ -6091,18 +6099,21 @@ static int hpsa_find_cfgtables(struct ctlr_info *h)

		static void hpsa_get_max_perf_mode_cmds(struct ctlr_info *h)
		{
		h->max_commands = readl(&(h->cfgtable->MaxPerformantModeCommands));
		#define MIN_MAX_COMMANDS 16
		BUILD_BUG_ON(MIN_MAX_COMMANDS <= HPSA_NRESERVED_CMDS);

		h->max_commands = readl(&h->cfgtable->MaxPerformantModeCommands);

		/* Limit commands in memory limited kdump scenario. */
		if (reset_devices && h->max_commands > 32)
		h->max_commands = 32;

		if (h->max_commands < 16) {
		dev_warn(&h->pdev->dev, "Controller reports "
		"max supported commands of %d, an obvious lie. "
		"Using 16. Ensure that firmware is up to date.\n",
		h->max_commands);
		h->max_commands = 16;
		if (h->max_commands < MIN_MAX_COMMANDS) {
		dev_warn(&h->pdev->dev,
		"Controller reports max supported commands of %d Using %d instead. Ensure that firmware is up to date.\n",
		h->max_commands,
		MIN_MAX_COMMANDS);
		h->max_commands = MIN_MAX_COMMANDS;
		}
		}

drivers/scsi/hpsa.h

+6 −0

Original line number	Diff line number	Diff line
		@@ -54,6 +54,7 @@ struct hpsa_scsi_dev_t {
		u32 ioaccel_handle;
		int offload_config; /* I/O accel RAID offload configured */
		int offload_enabled; /* I/O accel RAID offload enabled */
		int offload_to_be_enabled;
		int offload_to_mirror; /* Send next I/O accelerator RAID
		* offload request to mirror drive
		*/
		@@ -68,6 +69,11 @@ struct hpsa_scsi_dev_t {
		* devices in order to honor physical device queue depth limits.
		*/
		struct hpsa_scsi_dev_t *phys_disk[RAID_MAP_MAX_ENTRIES];
		#define HPSA_DO_NOT_EXPOSE 0x0
		#define HPSA_SG_ATTACH 0x1
		#define HPSA_ULD_ATTACH 0x2
		#define HPSA_SCSI_ADD (HPSA_SG_ATTACH \| HPSA_ULD_ATTACH)
		u8 expose_state;
		};

		struct reply_queue_buffer {

drivers/scsi/hpsa_cmd.h

+3 −0

Original line number	Diff line number	Diff line
		@@ -240,6 +240,7 @@ struct ReportLUNdata {

		struct ext_report_lun_entry {
		u8 lunid[8];
		#define MASKED_DEVICE(x) ((x)[3] & 0xC0)
		#define GET_BMIC_BUS(lunid) ((lunid)[7] & 0x3F)
		#define GET_BMIC_LEVEL_TWO_TARGET(lunid) ((lunid)[6])
		#define GET_BMIC_DRIVE_NUMBER(lunid) (((GET_BMIC_BUS((lunid)) - 1) << 8) + \
		@@ -247,6 +248,8 @@ struct ext_report_lun_entry {
		u8 wwid[8];
		u8 device_type;
		u8 device_flags;
		#define NON_DISK_PHYS_DEV(x) ((x)[17] & 0x01)
		#define PHYS_IOACCEL(x) ((x)[17] & 0x08)
		u8 lun_count; /* multi-lun device, how many luns */
		u8 redundant_paths;
		u32 ioaccel_handle; /* ioaccel1 only uses lower 16 bits */