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David Daney | 22 May 2013 18:10
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[PATCH v2] MIPS: OCTEON: Rename Kconfig CAVIUM_OCTEON_REFERENCE_BOARD to CAVIUM_OCTEON_SOC

From: David Daney <david.daney <at> cavium.com>

CAVIUM_OCTEON_SOC most place we used to use CPU_CAVIUM_OCTEON.  This
allows us to CPU_CAVIUM_OCTEON in places where we have no OCTEON SOC.

Remove CAVIUM_OCTEON_SIMULATOR as it doesn't really do anything, we can
get the same configuration with CAVIUM_OCTEON_SOC.

Signed-off-by: David Daney <david.daney <at> cavium.com>
Cc: linux-ide <at> vger.kernel.org
Cc: linux-edac <at> vger.kernel.org
Cc: linux-i2c <at> vger.kernel.org
Cc: netdev <at> vger.kernel.org
Cc: spi-devel-general <at> lists.sourceforge.net
Cc: devel <at> driverdev.osuosl.org
Cc: linux-usb <at> vger.kernel.org
Acked-by: Greg Kroah-Hartman <gregkh <at> linuxfoundation.org>
Acked-by: Wolfram Sang <wsa <at> the-dreams.de>
Acked-by: Mauro Carvalho Chehab <mchehab <at> redhat.com>
---
It may make sense to merge this before 3.10 as it touches a ton of
Kconfigs that are more likely to experiance merge problems in a full
merge window.  Also it is only Kconfigery and no 'real' code, so there
are fewer chances of really screwing things up.

Changes from v1: White space fixes and missed conversion of
                 drivers/watchdog/Kconfig as noted by Aaro Koskinen.

 arch/mips/Kconfig                         | 19 ++-----------------
 arch/mips/cavium-octeon/Kconfig           |  6 +++++-
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Sergei Shtylyov | 21 May 2013 21:24
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[PATCH] ipr: qc_fill_rtf() method should not store alternate status register

The 'ctl' field of  the 'struct ata_taskfile' is not really dual purpose, i.e.
it is not intended  for storing the alternate status register (which is mapped
at the same address in the legacy IDE controllers) in the qc_fill_rtf() method.
No other 'libata' driver except 'drivers/scsi/ipr.c' stores the alternate status
register's value in the 'ctl' field of 'qc->result_tf', hence this driver should
not do this as well...

Signed-off-by: Sergei Shtylyov <sergei.shtylyov <at> cogentembedded.com>

---
The patch is against the recent Linus' tree.

 drivers/scsi/ipr.c |    1 -
 1 file changed, 1 deletion(-)

Index: linux/drivers/scsi/ipr.c
===================================================================
--- linux.orig/drivers/scsi/ipr.c
+++ linux/drivers/scsi/ipr.c
 <at>  <at>  -6662,7 +6662,6  <at>  <at>  static bool ipr_qc_fill_rtf(struct ata_q
 	tf->hob_lbal = g->hob_lbal;
 	tf->hob_lbam = g->hob_lbam;
 	tf->hob_lbah = g->hob_lbah;
-	tf->ctl = g->alt_status;

 	return true;
 }
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Sergei Shtylyov | 21 May 2013 21:07
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[PATCH] sata_rcar: clear STOP bit in bmdma_start() method

Iff bmdma_setup() has to stop a DMA transfer before starting a new one, then the
STOP bit in the ATAPI_CONTROL1 register will remain set (it's only cleared when
setting the START bit to 1) and then bmdma_start() method will set both START
and STOP bits simultaneously which should abort the transfer being just started.
Avoid that by explicitly clearing the STOP bit in bmdma_start() method (in this
case it will be ignored on write).

Signed-off-by: Sergei Shtylyov <sergei.shtylyov <at> cogentembedded.com>

---
This patch is against 'for-3.10-fixes' branch of Tejun Heo's 'libata.git' repo.

 drivers/ata/sata_rcar.c |    1 +
 1 file changed, 1 insertion(+)

Index: libata/drivers/ata/sata_rcar.c
===================================================================
--- libata.orig/drivers/ata/sata_rcar.c
+++ libata/drivers/ata/sata_rcar.c
 <at>  <at>  -549,6 +549,7  <at>  <at>  static void sata_rcar_bmdma_start(struct

 	/* start host DMA transaction */
 	dmactl = ioread32(priv->base + ATAPI_CONTROL1_REG);
+	dmactl &= ~ATAPI_CONTROL1_STOP;
 	dmactl |= ATAPI_CONTROL1_START;
 	iowrite32(dmactl, priv->base + ATAPI_CONTROL1_REG);
 }
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Alexander Gordeev | 21 May 2013 21:03
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[PATCH RESEND 0/1] AHCI: Make distinct names for ports in /proc/interrupts

Tejun,

This patch is applied on top of previously (re)sent patch
"AHCI: Optimize interrupt processing". Should the latter
refused, I will post a new version.

Alexander Gordeev (1):
  AHCI: Make distinct names for ports in /proc/interrupts

 drivers/ata/ahci.c    |    5 +++--
 drivers/ata/ahci.h    |    1 +
 drivers/ata/libahci.c |   10 ++++++++++
 3 files changed, 14 insertions(+), 2 deletions(-)

-- 
1.7.7.6

--

-- 
Regards,
Alexander Gordeev
agordeev <at> redhat.com
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Alexander Gordeev | 21 May 2013 21:00
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[PATCH RESEND 0/1] AHCI: Optimize interrupt processing

Hi Tejun,

This is a patch I sent to Jeff few months ago. As you asked, I am
resending it on top of 3.10-rc2 Linus tree. Jeff has said he
applied this patch, but I am not sure what exactly it means ;)

Also, I am not sure about my reading of the statistics and the
trade-off I identified (below), so this patch is a RFC.

The numbers are taken by running 'if=/dev/sd{a,b,c} of=/dev/null'
All time values is in us.

Before this update host lock average holdtime was 3.266532061 and
average waittime was 0.009832679 [1]. After the update average
holdtime (slightly) rose up to 0.335267418 while average waittime
decreased to 0.000320469 [2]. Which means host lock with local
interrupt disabled is held roughly the same while the average
waittime dropped 30 times.

After this update port events are handled with local interrupts
enabled and compete on individual per-port locks with average
holdtime 1.540987475 and average waittime 0.000714864 [3].
Comparing to [1], ata_scsi_queuecmd() holds port locks 2 times
less and waits for locks 13 times less.

The downside of this change is introduction of a kernel thread
and (supposedly) increased total average time of handling a
AHCI interrupt - at most 1.5 times.

The upside is better access times from ata_scsi_queuecmd() to
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PCH LOTTO | 21 May 2013 00:24

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ланя | 20 May 2013 20:41

Поразите близких

Наилучшая Игрушка http://goo.gl/GCx3F?/eBzcprQyX
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Brandt, Todd E | 17 May 2013 21:05
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[PATCH v2 2/2] Adds new device resume mode in PM core, async plus non-blocking

Updates the drivers/base/power subsystem to allow any devices which
have registred as asynchronous and who have not registered "complete"
callbacks to be non-blocking. i.e system resume can finish and return
control to the user while these devices continue resuming.

Changelog:
v2:
        - Updated patch submission. Incorporates comments from Tejun Heo.   
          Fixed comment format, removed camelcase. No functional changes.

Signed-off-by: Todd Brandt <todd.e.brandt <at> intel.com>
---
 drivers/base/power/main.c |   20 ++++++++++++++++----
 1 file changed, 16 insertions(+), 4 deletions(-)

diff --git a/drivers/base/power/main.c b/drivers/base/power/main.c
index 2b7f77d..1b16379 100644
--- a/drivers/base/power/main.c
+++ b/drivers/base/power/main.c
 <at>  <at>  -713,7 +713,6  <at>  <at>  void dpm_resume(pm_message_t state)
 		put_device(dev);
 	}
 	mutex_unlock(&dpm_list_mtx);
-	async_synchronize_full();
 	dpm_show_time(starttime, state, NULL);
 }

 <at>  <at>  -726,11 +725,14  <at>  <at>  static void device_complete(struct device *dev, pm_message_t state)
 {
 	void (*callback)(struct device *) = NULL;
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Daniels Turlajs | 16 May 2013 11:22
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DRINGEND BERICHT!


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Chew Chiau Ee | 16 May 2013 09:33
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[PATCH] ata_piix: add PCI IDs for Intel BayTail

From: Chew, Chiau Ee <chiau.ee.chew <at> intel.com>

Adds IDE-mode SATA Device IDs for the Intel BayTrail platform.

Signed-off-by: Chew, Chiau Ee <chiau.ee.chew <at> intel.com>
Signed-off-by: Artem Bityutskiy <artem.bityutskiy <at> linux.intel.com>
---
 drivers/ata/ata_piix.c |   15 +++++++++++++++
 1 files changed, 15 insertions(+), 0 deletions(-)

diff --git a/drivers/ata/ata_piix.c b/drivers/ata/ata_piix.c
index 2f48123..93cb092 100644
--- a/drivers/ata/ata_piix.c
+++ b/drivers/ata/ata_piix.c
 <at>  <at>  -151,6 +151,7  <at>  <at>  enum piix_controller_ids {
 	piix_pata_vmw,			/* PIIX4 for VMware, spurious DMA_ERR */
 	ich8_sata_snb,
 	ich8_2port_sata_snb,
+	ich8_2port_sata_byt,
 };

 struct piix_map_db {
 <at>  <at>  -334,6 +335,9  <at>  <at>  static const struct pci_device_id piix_pci_tbl[] = {
 	{ 0x8086, 0x8d60, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_sata_snb },
 	/* SATA Controller IDE (Wellsburg) */
 	{ 0x8086, 0x8d68, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata },
+	/* SATA Controller IDE (BayTrail) */
+	{ 0x8086, 0x0F20, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
+	{ 0x8086, 0x0F21, PCI_ANY_ID, PCI_ANY_ID, 0, 0, ich8_2port_sata_byt },
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David Milburn | 14 May 2013 20:48
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[PATCH V2 #for-3.10] libata: export ata_port port_no attribute via /sys

While registering host controller track port number based upon number
of ports available on the controller, export port_no attribute through
/sys. This patch is needed by udev for composing persistent links in
/dev/disk/by-path.

# pwd
/sys/devices/pci0000:00/0000:00:1f.2/ata8/ata_port/ata8
# ll
total 0
lrwxrwxrwx. 1 root root    0 Mar  6 12:43 device -> ../../../ata8
-r--r--r--. 1 root root 4096 Mar  6 12:43 idle_irq
-r--r--r--. 1 root root 4096 Mar  6 12:43 nr_pmp_links
-r--r--r--. 1 root root 4096 Mar  6 12:43 port_no
drwxr-xr-x. 2 root root    0 Mar  6 12:42 power
lrwxrwxrwx. 1 root root    0 Mar  6 12:41 subsystem -> ../../../../../../class/ata_port
-rw-r--r--. 1 root root 4096 Mar  6 12:40 uevent
# cat port_no
1

Signed-off-by: David Milburn <dmilburn <at> redhat.com>
---

V2: Tejun suggested adding use case in commit message.

 drivers/ata/libata-core.c      |    6 ++++--
 drivers/ata/libata-transport.c |    4 +++-
 include/linux/libata.h         |    1 +
 3 files changed, 8 insertions(+), 3 deletions(-)

diff --git a/drivers/ata/libata-core.c b/drivers/ata/libata-core.c
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