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Mikael Pettersson 4113bb6b67 sata_promise: issue ATAPI commands as normal packets 
This patch (against libata #upstream + the ATAPI cleanup patch)
reimplements sata_promise's ATAPI support to format ATAPI DMA
commands as normal packets, and to issue them via the hardware's
normal packet machinery.

It turns out that the only reason for issuing ATAPI DMA
commands via the pdc_issue_atapi_pkt_cmd() procedure was to
perform two interrupt-fiddling steps for ATA_DFLAG_CDB_INTR
devices. But these steps aren't needed because sata_promise
sets ATA_FLAG_PIO_POLLING, which disables DMA for those devices.
The remaining steps can easily be done in ATA taskfile packets.

Concrete changes:
- pdc_atapi_dma_pkt() is extended to program all packet setup
  steps, and not just contain the CDB; the sequence of steps
  exactly mirrors what pdc_issue_atapi_pkt_cmd() did
- pdc_atapi_dma_pkt() needed more parameters: simplify it by
  just passing 'qc' and having it extract the data it needs
- pdc_issue_atai_pkt_cmd() and its two helper procedures
  pdc_wait_for_drq() and pdc_wait_on_busy() are removed

Tested on first- and second-generation chips, SATAPI and PATAPI,
with no observable regressions.

Signed-off-by: Mikael Pettersson <mikpe@it.uu.se>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
 		2007-02-09 17:39:34 -05:00
..
acorn [PATCH] getting rid of all casts of k[cmz]alloc() calls 2006-12-13 09:05:58 -08:00
acpi [PATCH] wrong order of kzalloc arguments 2007-02-09 08:28:48 -08:00
amba
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ata sata_promise: issue ATAPI commands as normal packets 2007-02-09 17:39:34 -05:00
atm [PATCH] horizon.c: missing __devinit 2007-01-23 11:09:49 -08:00
base Driver Core: Increase the default timeout value of the firmware subsystem 2007-02-07 10:37:14 -08:00
block [PATCH] Fix BUG at drivers/scsi/scsi_lib.c:1118 caused by "pktsetup dvd /dev/sr0" 2007-01-05 23:55:22 -08:00
bluetooth [Bluetooth] Correct SCO buffer for Broadcom based Dell laptops 2007-01-09 00:29:59 -08:00
cdrom [PATCH] cdrom: set default timeout to 7 seconds 2007-01-03 17:32:54 -08:00
char Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-apm 2007-02-09 09:44:28 -08:00
clocksource [PATCH] clocksource: small cleanup 2006-12-10 09:57:22 -08:00
connector [PATCH] connector: some fixes for ia64 unaligned access errors 2007-01-05 23:55:29 -08:00
cpufreq [CPUFREQ] check sysfs_create_link return value 2007-01-29 00:06:27 -05:00
crypto Merge branch 'HEAD' of master.kernel.org:/pub/scm/linux/kernel/git/herbert/crypto-2.6 2007-02-08 15:25:18 -08:00
dio
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dma [PATCH] slab: remove SLAB_KERNEL 2006-12-07 08:39:24 -08:00
edac [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
eisa
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fc4 [PATCH] getting rid of all casts of k[cmz]alloc() calls 2006-12-13 09:05:58 -08:00
firmware ACPICA: Remove duplicate table definitions (non-conflicting), cont 2007-02-02 21:14:29 -05:00
hid HID: move away from DEBUG defines in favor of CONFIG_HID_DEBUG 2007-02-05 10:00:45 +01:00
hwmon [PATCH] hwmon: ansify 2007-02-09 09:14:06 -08:00
i2c USB: <linux/usb_ch9.h> becomes <linux/usb/ch9.h> 2007-02-07 15:44:32 -08:00
ide Merge master.kernel.org:/pub/scm/linux/kernel/git/bart/ide-2.6 2007-02-07 19:32:36 -08:00
ieee1394 ieee1394: fix host device registering when nodemgr disabled 2007-02-08 21:36:22 +01:00
infiniband [PATCH] iscsi endianness annotations 2007-02-09 09:14:07 -08:00
input [ALSA] ucb1400_ts.c compilation fix (struct snd_ac97) 2007-02-09 09:02:25 +01:00
isdn [PATCH] Gigaset ISDN driver error handling fixes 2007-01-26 13:50:58 -08:00
kvm [PATCH] misc NULL noise removal 2007-02-09 09:14:07 -08:00
leds [PATCH] Fix leds-s3c24xx hardware.h reference 2007-01-05 23:55:21 -08:00
macintosh [PATCH] enable mouse button 2+3 emulation for x86 macs 2007-02-09 09:25:47 -08:00
mca
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md [PATCH] md: avoid possible BUG_ON in md bitmap handling 2007-02-09 09:25:47 -08:00
media [PATCH] misc duplicate field initializers 2007-02-09 09:14:07 -08:00
message [SCSI] fusion: bump version 2007-01-06 09:32:49 -06:00
mfd [PATCH] Add include/linux/freezer.h and move definitions from sched.h 2006-12-07 08:39:27 -08:00
misc [PATCH] TIFM should depend on PCI - TIFM_CORE leads to use of pci primitives 2007-02-09 08:28:48 -08:00
mmc [PATCH] TIFM should depend on PCI - TIFM_CORE leads to use of pci primitives 2007-02-09 08:28:48 -08:00
mtd [PATCH] mtd/nand/cafe.c missing include of dma-mapping.h 2007-01-30 08:39:20 -08:00
net Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-tc 2007-02-09 09:22:36 -08:00
nubus
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oprofile [PATCH] struct path: convert oprofile 2006-12-08 08:28:48 -08:00
parisc [PATCH] getting rid of all casts of k[cmz]alloc() calls 2006-12-13 09:05:58 -08:00
parport [PATCH] Kconfig refactoring for better menu nesting 2006-12-10 09:55:39 -08:00
pci Add pci class code for SATA & AHCI, and replace some magic numbers. 2007-02-09 17:39:29 -05:00
pcmcia [PATCH] m32r: class_device -> device fallout 2007-02-09 08:28:48 -08:00
pnp PNPACPI: remove EXPERIMENTAL dependency 2007-01-26 02:15:57 -05:00
ps3 [POWERPC] PS3: Move vuart declarations to ps3.h 2007-02-07 14:03:20 +11:00
rapidio
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rtc [PATCH] rtc-pcf8563: detect polarity of century bit automatically 2007-02-09 09:25:46 -08:00
s390 [S390]: Adapt special message interface to new IUCV API 2007-02-08 13:51:11 -08:00
sbus [PATCH] getting rid of all casts of k[cmz]alloc() calls 2006-12-13 09:05:58 -08:00
scsi Merge branch 'upstream' of git://ftp.linux-mips.org/pub/scm/upstream-tc 2007-02-09 09:22:36 -08:00
serial [PATCH] drivers/serial NULL noise removal 2007-02-09 09:14:06 -08:00
sh
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sn
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spi Revert "Driver core: convert SPI code to use struct device" 2007-02-07 21:34:08 -08:00
tc [TC] MIPS: TURBOchannel resources off-by-one fix 2007-02-09 16:23:15 +00:00
telephony [PATCH] struct path: convert ixj 2006-12-08 08:28:46 -08:00
usb [PATCH] hci_{read,write}l() does force casts to wrong type for no reason 2007-02-09 09:14:08 -08:00
video [TC] pmagb-b-fb: Convert to the driver model 2007-02-09 16:23:18 +00:00
w1 [PATCH] w1: Fix for kconfig entry typo 2006-12-13 09:05:48 -08:00
zorro [PATCH] struct path: convert zorro 2006-12-08 08:28:50 -08:00
Kconfig [PATCH] kvm: userspace interface 2006-12-10 09:57:22 -08:00
Makefile [PATCH] enable mouse button 2+3 emulation for x86 macs 2007-02-09 09:25:47 -08:00