From: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
To: linux-kernel@vger.kernel.org
Cc: Greg Kroah-Hartman <gregkh@linuxfoundation.org>,
stable@vger.kernel.org, Vincent Pelletier <plr.vincent@gmail.com>,
Tejun Heo <tj@kernel.org>
Subject: [ 27/33] libata: make ata_exec_internal_sg honor DMADIR
Date: Wed, 5 Jun 2013 13:53:05 -0700 [thread overview]
Message-ID: <20130605204708.691553257@linuxfoundation.org> (raw)
In-Reply-To: <20130605204702.359510786@linuxfoundation.org>
3.0-stable review patch. If anyone has any objections, please let me know.
------------------
From: Vincent Pelletier <plr.vincent@gmail.com>
commit e771451c0a831d96a7c14b0ca8a8ec671d98567b upstream.
libata honors DMADIR for regular commands, but not for internal commands
used (among other) during device initialisation.
This makes SATA-host-to-PATA-device bridges based on Silicon Image SiL3611
(such as "Abit Serillel 2") end up disabled when used with an ATAPI device
after a few tries.
Log output of the bridge being hot-plugged with an ATAPI drive:
[ 9631.212901] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
[ 9631.212913] ata1: irq_stat 0x00000040, connection status changed
[ 9631.212923] ata1: SError: { CommWake 10B8B DevExch }
[ 9631.212939] ata1: hard resetting link
[ 9632.104962] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9632.106393] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33
[ 9632.106407] ata1.00: applying bridge limits
[ 9632.108151] ata1.00: configured for UDMA/33
[ 9637.105303] ata1.00: qc timeout (cmd 0xa0)
[ 9637.105324] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9637.105335] ata1: hard resetting link
[ 9638.044599] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9638.047878] ata1.00: configured for UDMA/33
[ 9643.044933] ata1.00: qc timeout (cmd 0xa0)
[ 9643.044953] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9643.044963] ata1: limiting SATA link speed to 1.5 Gbps
[ 9643.044971] ata1.00: limiting speed to UDMA/33:PIO3
[ 9643.044979] ata1: hard resetting link
[ 9643.984225] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 9643.987471] ata1.00: configured for UDMA/33
[ 9648.984591] ata1.00: qc timeout (cmd 0xa0)
[ 9648.984612] ata1.00: failed to clear UNIT ATTENTION (err_mask=0x5)
[ 9648.984619] ata1.00: disabled
[ 9649.000593] ata1: hard resetting link
[ 9649.939902] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 310)
[ 9649.955864] ata1: EH complete
With this patch, the drive enumerates correctly when libata is loaded with
atapi_dmadir=1:
[ 9891.810863] ata1: exception Emask 0x10 SAct 0x0 SErr 0x40c0000 action 0xe frozen
[ 9891.810874] ata1: irq_stat 0x00000040, connection status changed
[ 9891.810884] ata1: SError: { CommWake 10B8B DevExch }
[ 9891.810900] ata1: hard resetting link
[ 9892.762105] ata1: SATA link up 1.5 Gbps (SStatus 113 SControl 300)
[ 9892.763544] ata1.00: ATAPI: PIONEER DVD-RW DVR-115, 1.06, max UDMA/33, DMADIR
[ 9892.763558] ata1.00: applying bridge limits
[ 9892.765393] ata1.00: configured for UDMA/33
[ 9892.786063] ata1: EH complete
[ 9892.792062] scsi 0:0:0:0: CD-ROM PIONEER DVD-RW DVR-115 1.06 PQ: 0 ANSI: 5
[ 9892.798455] sr2: scsi3-mmc drive: 12x/12x writer dvd-ram cd/rw xa/form2 cdda tray
[ 9892.798837] sr 0:0:0:0: Attached scsi CD-ROM sr2
[ 9892.799109] sr 0:0:0:0: Attached scsi generic sg6 type 5
Based on a patch by Csaba Halász <csaba.halasz@gmail.com> on linux-ide:
http://marc.info/?l=linux-ide&m=136121147832295&w=2
tj: minor formatting changes.
Signed-off-by: Vincent Pelletier <plr.vincent@gmail.com>
Signed-off-by: Tejun Heo <tj@kernel.org>
Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>
---
drivers/ata/libata-core.c | 6 ++++++
1 file changed, 6 insertions(+)
--- a/drivers/ata/libata-core.c
+++ b/drivers/ata/libata-core.c
@@ -1599,6 +1599,12 @@ unsigned ata_exec_internal_sg(struct ata
qc->tf = *tf;
if (cdb)
memcpy(qc->cdb, cdb, ATAPI_CDB_LEN);
+
+ /* some SATA bridges need us to indicate data xfer direction */
+ if (tf->protocol == ATAPI_PROT_DMA && (dev->flags & ATA_DFLAG_DMADIR) &&
+ dma_dir == DMA_FROM_DEVICE)
+ qc->tf.feature |= ATAPI_DMADIR;
+
qc->flags |= ATA_QCFLAG_RESULT_TF;
qc->dma_dir = dma_dir;
if (dma_dir != DMA_NONE) {
next prev parent reply other threads:[~2013-06-05 20:55 UTC|newest]
Thread overview: 34+ messages / expand[flat|nested] mbox.gz Atom feed top
2013-06-05 20:52 [ 00/33] 3.0.81-stable review Greg Kroah-Hartman
2013-06-05 20:52 ` [ 01/33] avr32: fix relocation check for signed 18-bit offset Greg Kroah-Hartman
2013-06-05 20:52 ` [ 02/33] ARM: plat-orion: Fix num_resources and id for ge10 and ge11 Greg Kroah-Hartman
2013-06-05 20:52 ` [ 03/33] staging: vt6656: use free_netdev instead of kfree Greg Kroah-Hartman
2013-06-05 20:52 ` [ 04/33] usb: option: Add Telewell TW-LTE 4G Greg Kroah-Hartman
2013-06-05 20:52 ` [ 05/33] USB: option: add device IDs for Dell 5804 (Novatel E371) WWAN card Greg Kroah-Hartman
2013-06-05 20:52 ` [ 06/33] USB: ftdi_sio: Add support for Newport CONEX motor drivers Greg Kroah-Hartman
2013-06-05 20:52 ` [ 07/33] USB: cxacru: potential underflow in cxacru_cm_get_array() Greg Kroah-Hartman
2013-06-05 20:52 ` [ 08/33] TTY: Fix tty miss restart after we turn off flow-control Greg Kroah-Hartman
2013-06-05 20:52 ` [ 09/33] USB: Blacklisted Cinterions PLxx WWAN Interface Greg Kroah-Hartman
2013-06-05 20:52 ` [ 10/33] USB: reset resume quirk needed by a hub Greg Kroah-Hartman
2013-06-05 20:52 ` [ 11/33] USB: UHCI: fix for suspend of virtual HP controller Greg Kroah-Hartman
2013-06-05 20:52 ` [ 12/33] cifs: only set ops for inodes in I_NEW state Greg Kroah-Hartman
2013-06-05 20:52 ` [ 13/33] fat: fix possible overflow for fat_clusters Greg Kroah-Hartman
2013-06-05 20:52 ` [ 14/33] ocfs2: goto out_unlock if ocfs2_get_clusters_nocache() failed in ocfs2_fiemap() Greg Kroah-Hartman
2013-06-05 20:52 ` [ 15/33] Kirkwood: Enable PCIe port 1 on QNAP TS-11x/TS-21x Greg Kroah-Hartman
2013-06-05 20:52 ` [ 16/33] mm compaction: fix of improper cache flush in migration code Greg Kroah-Hartman
2013-06-05 20:52 ` [ 17/33] klist: del waiter from klist_remove_waiters before wakeup waitting process Greg Kroah-Hartman
2013-06-05 20:52 ` [ 18/33] wait: fix false timeouts when using wait_event_timeout() Greg Kroah-Hartman
2013-06-05 20:52 ` [ 19/33] nilfs2: fix issue of nilfs_set_page_dirty() for page at EOF boundary Greg Kroah-Hartman
2013-06-05 20:52 ` [ 20/33] mm: mmu_notifier: re-fix freed page still mapped in secondary MMU Greg Kroah-Hartman
2013-06-05 20:52 ` [ 21/33] drivers/block/brd.c: fix brd_lookup_page() race Greg Kroah-Hartman
2013-06-05 20:53 ` [ 22/33] mm/THP: use pmd_populate() to update the pmd with pgtable_t pointer Greg Kroah-Hartman
2013-06-05 20:53 ` [ 23/33] um: Serve io_remap_pfn_range() Greg Kroah-Hartman
2013-06-05 20:53 ` [ 24/33] drm/radeon: fix card_posted check for newer asics Greg Kroah-Hartman
2013-06-05 20:53 ` [ 25/33] cifs: fix potential buffer overrun when composing a new options string Greg Kroah-Hartman
2013-06-05 20:53 ` [ 26/33] USB: io_ti: Fix NULL dereference in chase_port() Greg Kroah-Hartman
2013-06-05 20:53 ` Greg Kroah-Hartman [this message]
2013-06-05 20:53 ` [ 28/33] xen/events: Handle VIRQ_TIMER before any other hardirq in event loop Greg Kroah-Hartman
2013-06-05 20:53 ` [ 29/33] jfs: fix a couple races Greg Kroah-Hartman
2013-06-05 20:53 ` [ 30/33] ALSA: usb-audio: fix possible hang and overflow in parse_uac2_sample_rate_range() Greg Kroah-Hartman
2013-06-05 20:53 ` [ 31/33] ALSA: usb-audio: avoid integer overflow in create_fixed_stream_quirk() Greg Kroah-Hartman
2013-06-05 20:53 ` [ 32/33] mac80211: close AP_VLAN interfaces before unregistering all Greg Kroah-Hartman
2013-06-05 20:53 ` [ 33/33] thinkpad-acpi: recognize latest V-Series using DMI_BIOS_VENDOR Greg Kroah-Hartman
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