summaryrefslogtreecommitdiff
path: root/drivers/scsi/hpsa.c
diff options
context:
space:
mode:
authorAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
committerAndré Fabian Silva Delgado <emulatorman@parabola.nu>2016-10-20 00:10:27 -0300
commitd0b2f91bede3bd5e3d24dd6803e56eee959c1797 (patch)
tree7fee4ab0509879c373c4f2cbd5b8a5be5b4041ee /drivers/scsi/hpsa.c
parente914f8eb445e8f74b00303c19c2ffceaedd16a05 (diff)
Linux-libre 4.8.2-gnupck-4.8.2-gnu
Diffstat (limited to 'drivers/scsi/hpsa.c')
-rw-r--r--drivers/scsi/hpsa.c83
1 files changed, 76 insertions, 7 deletions
diff --git a/drivers/scsi/hpsa.c b/drivers/scsi/hpsa.c
index ff8dcd5b0..030d0023e 100644
--- a/drivers/scsi/hpsa.c
+++ b/drivers/scsi/hpsa.c
@@ -4105,6 +4105,70 @@ static int hpsa_set_local_logical_count(struct ctlr_info *h,
return rc;
}
+static bool hpsa_is_disk_spare(struct ctlr_info *h, u8 *lunaddrbytes)
+{
+ struct bmic_identify_physical_device *id_phys;
+ bool is_spare = false;
+ int rc;
+
+ id_phys = kzalloc(sizeof(*id_phys), GFP_KERNEL);
+ if (!id_phys)
+ return false;
+
+ rc = hpsa_bmic_id_physical_device(h,
+ lunaddrbytes,
+ GET_BMIC_DRIVE_NUMBER(lunaddrbytes),
+ id_phys, sizeof(*id_phys));
+ if (rc == 0)
+ is_spare = (id_phys->more_flags >> 6) & 0x01;
+
+ kfree(id_phys);
+ return is_spare;
+}
+
+#define RPL_DEV_FLAG_NON_DISK 0x1
+#define RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED 0x2
+#define RPL_DEV_FLAG_UNCONFIG_DISK 0x4
+
+#define BMIC_DEVICE_TYPE_ENCLOSURE 6
+
+static bool hpsa_skip_device(struct ctlr_info *h, u8 *lunaddrbytes,
+ struct ext_report_lun_entry *rle)
+{
+ u8 device_flags;
+ u8 device_type;
+
+ if (!MASKED_DEVICE(lunaddrbytes))
+ return false;
+
+ device_flags = rle->device_flags;
+ device_type = rle->device_type;
+
+ if (device_flags & RPL_DEV_FLAG_NON_DISK) {
+ if (device_type == BMIC_DEVICE_TYPE_ENCLOSURE)
+ return false;
+ return true;
+ }
+
+ if (!(device_flags & RPL_DEV_FLAG_UNCONFIG_DISK_REPORTING_SUPPORTED))
+ return false;
+
+ if (device_flags & RPL_DEV_FLAG_UNCONFIG_DISK)
+ return false;
+
+ /*
+ * Spares may be spun down, we do not want to
+ * do an Inquiry to a RAID set spare drive as
+ * that would have them spun up, that is a
+ * performance hit because I/O to the RAID device
+ * stops while the spin up occurs which can take
+ * over 50 seconds.
+ */
+ if (hpsa_is_disk_spare(h, lunaddrbytes))
+ return true;
+
+ return false;
+}
static void hpsa_update_scsi_devices(struct ctlr_info *h)
{
@@ -4198,6 +4262,7 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
u8 *lunaddrbytes, is_OBDR = 0;
int rc = 0;
int phys_dev_index = i - (raid_ctlr_position == 0);
+ bool skip_device = false;
physical_device = i < nphysicals + (raid_ctlr_position == 0);
@@ -4205,11 +4270,15 @@ static void hpsa_update_scsi_devices(struct ctlr_info *h)
lunaddrbytes = figure_lunaddrbytes(h, raid_ctlr_position,
i, nphysicals, nlogicals, physdev_list, logdev_list);
- /* skip masked non-disk devices */
- if (MASKED_DEVICE(lunaddrbytes) && physical_device &&
- (physdev_list->LUN[phys_dev_index].device_type != 0x06) &&
- (physdev_list->LUN[phys_dev_index].device_flags & 0x01))
- continue;
+ /*
+ * Skip over some devices such as a spare.
+ */
+ if (!tmpdevice->external && physical_device) {
+ skip_device = hpsa_skip_device(h, lunaddrbytes,
+ &physdev_list->LUN[phys_dev_index]);
+ if (skip_device)
+ continue;
+ }
/* Get device type, vendor, model, device id */
rc = hpsa_update_device_info(h, lunaddrbytes, tmpdevice,
@@ -6455,7 +6524,7 @@ static int hpsa_passthru_ioctl(struct ctlr_info *h, void __user *argp)
c->SG[0].Ext = cpu_to_le32(HPSA_SG_LAST); /* not chaining */
}
rc = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
- DEFAULT_TIMEOUT);
+ NO_TIMEOUT);
if (iocommand.buf_size > 0)
hpsa_pci_unmap(h->pdev, c, 1, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);
@@ -6588,7 +6657,7 @@ static int hpsa_big_passthru_ioctl(struct ctlr_info *h, void __user *argp)
c->SG[--i].Ext = cpu_to_le32(HPSA_SG_LAST);
}
status = hpsa_scsi_do_simple_cmd(h, c, DEFAULT_REPLY_QUEUE,
- DEFAULT_TIMEOUT);
+ NO_TIMEOUT);
if (sg_used)
hpsa_pci_unmap(h->pdev, c, sg_used, PCI_DMA_BIDIRECTIONAL);
check_ioctl_unit_attention(h, c);