linux-stable.git/drivers/scsi, branch v4.9.26

scsi: sd: Fix capacity calculation with 32-bit sector_t

2017-04-21T07:31:21+00:00

commit 7c856152cb92f8eee2df29ef325a1b1f43161aff upstream.

We previously made sure that the reported disk capacity was less than
0xffffffff blocks when the kernel was not compiled with large sector_t
support (CONFIG_LBDAF). However, this check assumed that the capacity
was reported in units of 512 bytes.

Add a sanity check function to ensure that we only enable disks if the
entire reported capacity can be expressed in terms of sector_t.

Reported-by: Steve Magnani 
Cc: Bart Van Assche 
Reviewed-by: Bart Van Assche 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

scsi: qla2xxx: Add fix to read correct register value for ISP82xx.

2017-04-21T07:31:21+00:00

commit bf6061b17a8d47ef0d9344d3ef576a4ff0edf793 upstream.

Add fix to read correct register value for ISP82xx, during check for
register disconnect.ISP82xx has different base register.

Fixes: a465537ad1a4 ("qla2xxx: Disable the adapter and skip error recovery in case of register disconnect")
Signed-off-by: Sawan Chandak 
Signed-off-by: Himanshu Madhani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

scsi: sd: Consider max_xfer_blocks if opt_xfer_blocks is unusable

2017-04-21T07:31:21+00:00

commit 6780414519f91c2a84da9baa963a940ac916f803 upstream.

If device reports a small max_xfer_blocks and a zero opt_xfer_blocks, we
end up using BLK_DEF_MAX_SECTORS, which is wrong and r/w of that size
may get error.

[mkp: tweaked to avoid setting rw_max twice and added typecast]

Fixes: ca369d51b3e ("block/sd: Fix device-imposed transfer length limits")
Signed-off-by: Fam Zheng 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

scsi: sr: Sanity check returned mode data

2017-04-21T07:31:21+00:00

commit a00a7862513089f17209b732f230922f1942e0b9 upstream.

Kefeng Wang discovered that old versions of the QEMU CD driver would
return mangled mode data causing us to walk off the end of the buffer in
an attempt to parse it. Sanity check the returned mode sense data.

Reported-by: Kefeng Wang 
Tested-by: Kefeng Wang 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs: issue link starup 2 times if device isn't active

2017-04-12T10:41:19+00:00

[ Upstream commit 7caf489b99a42a9017ef3d733912aea8794677e7 ]

If we issue the link startup to the device while its UniPro state is
LinkDown (and device state is sleep/power-down) then link startup
will not move the device state to Active. Device will only move to
active state if the link starup is issued when its UniPro state is
LinkUp. So in this case, we would have to issue the link startup 2
times to make sure that device moves to active state.

Reviewed-by: Gilad Broner 
Signed-off-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs: introduce a new ufshcd_statea UFSHCD_STATE_EH_SCHEDULED

2017-04-12T10:41:19+00:00

[ Upstream commit 141f81651037ea109188a6bafdc5c9a318bd5a46 ]

Add a new ufshcd_state, indicats that an err handler may get to run
immediately. Use UFSHCD_STATE_ERROR here looks not literaly correct.

Signed-off-by: Zang Leigang 
Reviewed-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs: add quirk to increase host PA_SaveConfigTime

2017-04-12T10:41:17+00:00

[ Upstream commit 56d4a1866d748732fd8d690b2c2156bbc9c9eb02 ]

The maximum value PA_SaveConfigTime is 250 (10us) but this is not enough
for some vendors. Gear switch from PWM to HS may fail even with this
max.  PA_SaveConfigTime. Gear switch can be issued by host controller as
an error recovery and any software delay will not help on this case so
we need to increase PA_SaveConfigTime to >32us as per vendor
recommendation.  This change adds a quirk to increase the
PA_SaveConfigTime parameter.

Reviewed-by: Venkat Gopalakrishnan 
Signed-off-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs: ensure that host pa_tactivate is higher than device

2017-04-12T10:41:17+00:00

[ Upstream commit c6a6db439868c7ba5cc90d4c461d9697ec731fa1 ]

Some UFS devices require host PA_TACTIVATE to be higher than
device PA_TACTIVATE otherwise it may get stuck during hibern8 sequence.
This change allows this by using quirk.

Reviewed-by: Venkat Gopalakrishnan 
Signed-off-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

scsi: ufs: introduce UFSHCD_QUIRK_PRDT_BYTE_GRAN quirk

2017-04-12T10:41:16+00:00

[ Upstream commit 75b1cc4ad63afa28c1a045b5157c008f405f06a9 ]

Some UFS host controllers may think granularities of PRDT length and
offset as bytes, not double words.

Signed-off-by: Kiwoong Kim 
Reviewed-by: Subhash Jadavani 
Signed-off-by: Martin K. Petersen 
Signed-off-by: Sasha Levin 
Signed-off-by: Greg Kroah-Hartman

qla2xxx: Allow vref count to timeout on vport delete.

2017-04-08T07:30:35+00:00

commit c4a9b538ab2a109c5f9798bea1f8f4bf93aadfb9 upstream.

Signed-off-by: Joe Carnuccio 
Signed-off-by: Himanshu Madhani 
Signed-off-by: Nicholas Bellinger 
Signed-off-by: Greg Kroah-Hartman