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1f5c23e2c1
android_kernel_xiaomi_sm7250/drivers
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Arthur Kepner 1f5c23e2c1 IB/mthca: Use mmiowb after doorbell ring 
We discovered a problem when running IPoIB applications on multiple
CPUs on an Altix system. Many messages such as:

ib_mthca 0002:01:00.0: SQ 000014 full (19941644 head, 19941707 tail, 64 max, 0 nreq)

appear in syslog, and the driver wedges up.

Apparently this is because writes to the doorbells from different CPUs
reach the device out of order. The following patch adds mmiowb() calls
after doorbell rings to ensure the doorbell writes are ordered.

Signed-off-by: Arthur Kepner <akepner@sgi.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
2006-10-16 20:22:35 -07:00
..
acorn IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
acpi Pull trivial into test branch 2006-10-14 02:28:07 -04:00
amba
ata Merge branch 'master' into upstream-fixes 2006-10-11 04:59:46 -04:00
atm Various drivers' irq handlers: kill dead code, needless casts 2006-10-06 15:00:58 -04:00
base [PATCH] hot-add-mem x86_64: use CONFIG_MEMORY_HOTPLUG_SPARSE 2006-10-01 00:39:18 -07:00
block [PATCH] z2_init() in non-modular case 2006-10-11 11:17:07 -07:00
bluetooth [Bluetooth] Use work queue to trigger URB submission 2006-10-15 23:14:35 -07:00
cdrom [PATCH] cdrom: add endianness annotations 2006-10-10 16:15:33 -07:00
char [PATCH] rio: fix array checking 2006-10-16 08:27:54 -07:00
clocksource [PATCH] scx200_hrt: fix precedence bug manifesting as 27x clock in 1 MHz mode 2006-10-04 07:55:14 -07:00
connector [PATCH] Process Events: Fix biarch compatibility issue. use __u64 timestamp 2006-07-31 13:28:36 -07:00
cpufreq [PATCH] cpufreq: make the transition_notifier chain use SRCU 2006-10-04 07:55:30 -07:00
crypto [CRYPTO] padlock: Convert padlock-sha to use crypto_hash 2006-09-21 11:46:22 +10:00
dio
dma [PATCH] drivers/dma trivial annotations 2006-10-10 15:37:21 -07:00
edac [PATCH] drivers/edac/edac_mc.h must #include <linux/platform_device.h> 2006-08-06 08:57:46 -07:00
eisa [PATCH] EISA: handle sysfs errors 2006-10-11 11:14:25 -07:00
fc4 IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
firmware [PATCH] firmware/efivars: handle error 2006-10-11 11:14:25 -07:00
hwmon Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
i2c [POWERPC] Fix i2c-powermac platform device usage 2006-10-10 13:56:13 +10:00
ide [PATCH] ide: add sanity checking to ide taskfile ioctl 2006-10-16 08:27:54 -07:00
ieee1394 Merge branch 'upstream-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/ieee1394/linux1394-2.6 2006-10-08 12:28:41 -07:00
infiniband IB/mthca: Use mmiowb after doorbell ring 2006-10-16 20:22:35 -07:00
input [PATCH] hp drivers/input stuff: C99 initializers, NULL noise removal, __user annotations 2006-10-15 11:00:58 -07:00
isdn [PATCH] ISDN: several minor fixes 2006-10-11 11:14:25 -07:00
leds Remove all inclusions of <linux/config.h> 2006-10-04 03:38:54 -04:00
macintosh [POWERPC] Fix windfarm platform device usage 2006-10-10 13:56:13 +10:00
mca [PATCH] drivers/mca: handle sysfs errors 2006-10-11 11:14:25 -07:00
md [PATCH] md: use BUILD_BUG_ON 2006-10-11 11:14:26 -07:00
media V4L/DVB (4750): AGC command1/2 is board specific 2006-10-14 00:44:29 -03:00
message IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
mfd IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
misc MSI S270 Laptop support: backlight, wlan, bluetooth states 2006-10-14 01:48:29 -04:00
mmc [PATCH] passing pointer to setup_timer() should be via unsigned long 2006-10-10 15:37:22 -07:00
mtd [PATCH] mtd: remove several bogus casts to void * in iounmap() argument 2006-10-10 15:37:22 -07:00
net Merge branch 'upstream-linus' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/netdev-2.6 2006-10-11 11:19:30 -07:00
nubus
oprofile [PATCH] inode-diet: Eliminate i_blksize from the inode structure 2006-09-27 08:26:18 -07:00
parisc Build fixes for struct pt_regs removal 2006-10-06 20:47:23 -06:00
parport [PATCH] sparc32 pt_regs fixes 2006-10-08 12:32:35 -07:00
pci [PATCH] HT_IRQ must depend on PCI 2006-10-11 11:14:23 -07:00
pcmcia Merge branch 'irqclean-submit1' of master.kernel.org:/pub/scm/linux/kernel/git/jgarzik/misc-2.6 2006-10-09 14:21:45 -07:00
pnp IRQ: Maintain regs pointer globally rather than passing to IRQ handlers 2006-10-05 15:10:12 +01:00
rapidio Fix several typos in drivers/ 2006-10-03 22:31:37 +02:00
rtc sh: Updates for IRQ handler changes. 2006-10-06 15:31:16 +09:00
s390 [S390] cio: remove casts from/to (void *). 2006-10-11 15:31:47 +02:00
sbus [PATCH] more kernel_execve() fallout (sbus) 2006-10-12 12:36:55 -07:00
scsi [PATCH] scsi: megaraid_{mm,mbox}: 64-bit DMA capability fix 2006-10-16 08:30:04 -07:00
serial Merge master.kernel.org:/pub/scm/linux/kernel/git/lethal/sh-2.6 2006-10-12 08:33:23 -07:00
sh
sn Various drivers' irq handlers: kill dead code, needless casts 2006-10-06 15:00:58 -04:00
spi Various drivers' irq handlers: kill dead code, needless casts 2006-10-06 15:00:58 -04:00
tc [MIPS] Fix DECserial build error by IRQ hander change 2006-10-08 02:38:28 +01:00
telephony
usb [PATCH] devio __user annotations 2006-10-10 15:37:21 -07:00
video [PATCH] revert "nvidiafb: use generic ddc reading" 2006-10-11 11:14:14 -07:00
w1 Fix several typos in drivers/ 2006-10-03 22:31:37 +02:00
zorro
Kconfig Move libata to drivers/ata. 2006-08-10 07:31:37 -04:00
Makefile Move libata to drivers/ata. 2006-08-10 07:31:37 -04:00