linux-stable.git/drivers/ata, branch v3.18.6

ahci_xgene: Fix the endianess issue in APM X-Gene SoC AHCI SATA controller driver.

2015-01-30T01:40:45+00:00

commit 5c0b8e0de76a86edb99e46612fd9d341b4c4fa0a upstream.

This patch fixes the big endian mode issue with function
xgene_ahci_read_id.

Signed-off-by: Suman Tripathi 
Signed-off-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

sata_dwc_460ex: fix resource leak on error path

2015-01-30T01:40:45+00:00

commit 4aaa71873ddb9faf4b0c4826579e2f6d18ff9ab4 upstream.

DMA mapped IO should be unmapped on the error path in probe() and
unconditionally on remove().

Fixes: 62936009f35a ([libata] Add 460EX on-chip SATA driver, sata_dwc_460ex)
Signed-off-by: Andy Shevchenko 
Signed-off-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

libata: prevent HSM state change race between ISR and PIO

2015-01-30T01:40:43+00:00

commit ce7514526742c0898b837d4395f515b79dfb5a12 upstream.

It is possible for ata_sff_flush_pio_task() to set ap->hsm_task_state to
HSM_ST_IDLE in between the time __ata_sff_port_intr() checks for HSM_ST_IDLE
and before it calls ata_sff_hsm_move() causing ata_sff_hsm_move() to BUG().

This problem is hard to reproduce making this patch hard to verify, but this
fix will prevent the race.

I have not been able to reproduce the problem, but here is a crash dump from
a 2.6.32 kernel.

On examining the ata port's state, its hsm_task_state field has a value of HSM_ST_IDLE:

crash> struct ata_port.hsm_task_state ffff881c1121c000
  hsm_task_state = 0

Normally, this should not be possible as ata_sff_hsm_move() was called from ata_sff_host_intr(),
which checks hsm_task_state and won't call ata_sff_hsm_move() if it has a HSM_ST_IDLE value.

PID: 11053  TASK: ffff8816e846cae0  CPU: 0   COMMAND: "sshd"
 #0 [ffff88008ba03960] machine_kexec at ffffffff81038f3b
 #1 [ffff88008ba039c0] crash_kexec at ffffffff810c5d92
 #2 [ffff88008ba03a90] oops_end at ffffffff8152b510
 #3 [ffff88008ba03ac0] die at ffffffff81010e0b
 #4 [ffff88008ba03af0] do_trap at ffffffff8152ad74
 #5 [ffff88008ba03b50] do_invalid_op at ffffffff8100cf95
 #6 [ffff88008ba03bf0] invalid_op at ffffffff8100bf9b
    [exception RIP: ata_sff_hsm_move+317]
    RIP: ffffffff813a77ad  RSP: ffff88008ba03ca0  RFLAGS: 00010097
    RAX: 0000000000000000  RBX: ffff881c1121dc60  RCX: 0000000000000000
    RDX: ffff881c1121dd10  RSI: ffff881c1121dc60  RDI: ffff881c1121c000
    RBP: ffff88008ba03d00   R8: 0000000000000000   R9: 000000000000002e
    R10: 000000000001003f  R11: 000000000000009b  R12: ffff881c1121c000
    R13: 0000000000000000  R14: 0000000000000050  R15: ffff881c1121dd78
    ORIG_RAX: ffffffffffffffff  CS: 0010  SS: 0018
 #7 [ffff88008ba03d08] ata_sff_host_intr at ffffffff813a7fbd
 #8 [ffff88008ba03d38] ata_sff_interrupt at ffffffff813a821e
 #9 [ffff88008ba03d78] handle_IRQ_event at ffffffff810e6ec0

libata: allow sata_sil24 to opt-out of tag ordered submission

2015-01-30T01:40:42+00:00

commit 72dd299d5039a336493993dcc63413cf31d0e662 upstream.

Ronny reports: https://bugzilla.kernel.org/show_bug.cgi?id=87101
    "Since commit 8a4aeec8d "libata/ahci: accommodate tag ordered
    controllers" the access to the harddisk on the first SATA-port is
    failing on its first access. The access to the harddisk on the
    second port is working normal.

    When reverting the above commit, access to both harddisks is working
    fine again."

Maintain tag ordered submission as the default, but allow sata_sil24 to
continue with the old behavior.

Cc: Tejun Heo 
Reported-by: Ronny Hegewald 
Signed-off-by: Dan Williams 
Signed-off-by: Tejun Heo 
Signed-off-by: Greg Kroah-Hartman

ahci: disable MSI on SAMSUNG 0xa800 SSD

2014-12-04T18:18:55+00:00

Just like 0x1600 which got blacklisted by 66a7cbc303f4 ("ahci: disable
MSI instead of NCQ on Samsung pci-e SSDs on macbooks"), 0xa800 chokes
on NCQ commands if MSI is enabled.  Disable MSI.

Signed-off-by: Tejun Heo 
Reported-by: Dominik Mierzejewski 
Link: https://bugzilla.kernel.org/show_bug.cgi?id=89171
Cc: stable@vger.kernel.org

sata_fsl: fix error handling of irq_of_parse_and_map

2014-12-02T17:52:17+00:00

irq_of_parse_and_map() returns 0 on error (the result is unsigned int),
so testing for negative result never works.

Signed-off-by: Dmitry Torokhov 
Signed-off-by: Tejun Heo 
Cc: stable@vger.kernel.org

AHCI: Add DeviceIDs for Sunrise Point-LP SATA controller

2014-12-02T17:38:50+00:00

This patch adds DeviceIDs for Sunrise Point-LP.

Signed-off-by: Devin Ryles 
Signed-off-by: Tejun Heo 
Cc: stable@vger.kernel.org

ahci: fix AHCI parameters not taken into account

2014-11-04T17:56:25+00:00

Changes into the AHCI subsystem have introduced a bug by not taking into
account the force_port_map and mask_port_map parameters when using the
ahci_pci_save_initial_config function. This commit fixes it by setting
the internal parameters of the ahci_port_priv structure.

Fixes: 725c7b570fda

Reported-and-tested-by: Zlatko Calusic 
Signed-off-by: Antoine Tenart

ata: sata_rcar: Add r8a7793 device support

2014-10-28T03:50:36+00:00

Signed-off-by: Koji Matsuoka 
Signed-off-by: Yoshihiro Kaneko 
Signed-off-by: Tejun Heo

ahci: Add Device IDs for Intel Sunrise Point PCH

2014-10-27T16:02:17+00:00

This patch adds the AHCI-mode SATA Device IDs for the Intel Sunrise Point PCH.

Signed-off-by: James Ralston 
Signed-off-by: Tejun Heo 
Cc: stable@vger.kernel.org