| From: Hans de Goede <hdegoede@redhat.com> |
| Date: Thu, 26 Apr 2018 22:32:21 +0200 |
| Subject: libata: Apply NOLPM quirk for SanDisk SD7UB3Q*G1001 SSDs |
| |
| commit 184add2ca23ce5edcac0ab9c3b9be13f91e7b567 upstream. |
| |
| Richard Jones has reported that using med_power_with_dipm on a T450s |
| with a Sandisk SD7UB3Q256G1001 SSD (firmware version X2180501) is |
| causing the machine to hang. |
| |
| Switching the LPM to max_performance fixes this, so it seems that |
| this Sandisk SSD does not handle LPM well. |
| |
| Note in the past there have been bug-reports about the following |
| Sandisk models not working with min_power, so we may need to extend |
| the quirk list in the future: name - firmware |
| Sandisk SD6SB2M512G1022I - X210400 |
| Sandisk SD6PP4M-256G-1006 - A200906 |
| |
| Cc: Richard W.M. Jones <rjones@redhat.com> |
| Reported-and-tested-by: Richard W.M. Jones <rjones@redhat.com> |
| Signed-off-by: Hans de Goede <hdegoede@redhat.com> |
| Signed-off-by: Tejun Heo <tj@kernel.org> |
| Signed-off-by: Ben Hutchings <ben@decadent.org.uk> |
| --- |
| drivers/ata/libata-core.c | 3 +++ |
| 1 file changed, 3 insertions(+) |
| |
| --- a/drivers/ata/libata-core.c |
| +++ b/drivers/ata/libata-core.c |
| @@ -4239,6 +4239,9 @@ static const struct ata_blacklist_entry |
| { "Crucial_CT960M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM | |
| ATA_HORKAGE_NOLPM, }, |
| |
| + /* Sandisk devices which are known to not handle LPM well */ |
| + { "SanDisk SD7UB3Q*G1001", NULL, ATA_HORKAGE_NOLPM, }, |
| + |
| /* devices that don't properly handle queued TRIM commands */ |
| { "Micron_M500_*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, |
| { "Crucial_CT*M500*", NULL, ATA_HORKAGE_NO_NCQ_TRIM, }, |
