diff options
author | 2017-03-08 23:13:28 -0800 | |
---|---|---|
committer | 2017-03-08 23:36:15 -0800 | |
commit | 52f993b8e89487ec9ee15a7fb4979e0f09a45b27 (patch) | |
tree | d65304486afe0bea4a311c783c0d72791c8c0aa2 /kernel/drivers/scsi/hpsa.c | |
parent | c189ccac5702322ed843fe17057035b7222a59b6 (diff) |
Upgrade to 4.4.50-rt62
The current kernel is based on rt kernel v4.4.6-rt14. We will upgrade it
to 4.4.50-rt62.
The command to achieve it is:
a) Clone a git repo from
git://git.kernel.org/pub/scm/linux/kernel/git/rt/linux-stable-rt.git
b) Get the diff between this two changesets:
git diff 640eca2901f3435e616157b11379d3223a44b391
705619beeea1b0b48219a683fd1a901a86fdaf5e
where the two commits are:
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
640eca2901f3435e616157b11379d3223a44b391
640eca2901f3 v4.4.6-rt14
localversion-rt
[yjiang5@jnakajim-build linux-stable-rt]$ git show --oneline --name-only
705619beeea1b0b48219a683fd1a901a86fdaf5e
705619beeea1 Linux 4.4.50-rt62
localversion-rt
c) One patch has been backported thus revert the patch before applying.
filterdiff -p1 -x scripts/package/Makefile
~/tmp/v4.4.6-rt14-4.4.50-rt62.diff |patch -p1 --dry-run
Upstream status: backport
Change-Id: I244d57a32f6066e5a5b9915f9fbf99e7bbca6e01
Signed-off-by: Yunhong Jiang <yunhong.jiang@linux.intel.com>
Diffstat (limited to 'kernel/drivers/scsi/hpsa.c')
-rw-r--r-- | kernel/drivers/scsi/hpsa.c | 78 |
1 files changed, 74 insertions, 4 deletions
diff --git a/kernel/drivers/scsi/hpsa.c b/kernel/drivers/scsi/hpsa.c index a3860367b..e9ce74afd 100644 --- a/kernel/drivers/scsi/hpsa.c +++ b/kernel/drivers/scsi/hpsa.c @@ -3930,6 +3930,70 @@ 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) { @@ -4023,6 +4087,7 @@ 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); @@ -4030,10 +4095,15 @@ 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_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, |