Ashutosh Dixit f69bcbf3b4 Intel MIC Host Driver Changes for Virtio Devices. ... This patch introduces the host "Virtio over PCIe" interface for Intel MIC. It allows creating user space backends on the host and instantiating virtio devices for them on the Intel MIC card. It uses the existing VRINGH infrastructure in the kernel to access virtio rings from the host. A character device per MIC is exposed with IOCTL, mmap and poll callbacks. This allows the user space backend to: (a) add/remove a virtio device via a device page. (b) map (R/O) virtio rings and device page to user space. (c) poll for availability of data. (d) copy a descriptor or entire descriptor chain to/from the card. (e) modify virtio configuration. (f) handle virtio device reset. The buffers are copied over using CPU copies for this initial patch and host initiated MIC DMA support is planned for future patches. The avail and desc virtio rings are in host memory and the used ring is in card memory to maximize writes across PCIe for performance. Co-author: Sudeep Dutt <sudeep.dutt@intel.com> Signed-off-by: Ashutosh Dixit <ashutosh.dixit@intel.com> Signed-off-by: Caz Yokoyama <Caz.Yokoyama@intel.com> Signed-off-by: Dasaratharaman Chandramouli <dasaratharaman.chandramouli@intel.com> Signed-off-by: Nikhil Rao <nikhil.rao@intel.com> Signed-off-by: Harshavardhan R Kharche <harshavardhan.r.kharche@intel.com> Signed-off-by: Sudeep Dutt <sudeep.dutt@intel.com> Acked-by: Yaozu (Eddie) Dong <eddie.dong@intel.com> Reviewed-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com> Signed-off-by: Greg Kroah-Hartman <gregkh@linuxfoundation.org>		2013-09-26 13:50:56 -07:00
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accessibility	…
acpi	ACPI and power management fixes for 3.12-rc1	2013-09-12 11:22:45 -07:00
amba	…
ata	Merge branch 'for-3.12' of git://git.kernel.org/pub/scm/linux/kernel/git/tj/libata	2013-09-03 18:19:53 -07:00
atm	atm: nicstar: fix regression made by previous patch	2013-09-15 22:18:55 -04:00
auxdisplay	…
base	thp: account anon transparent huge pages into NR_ANON_PAGES	2013-09-12 15:38:03 -07:00
bcma	bcma: fix error code handling on 64 Bit systems	2013-09-09 14:44:33 -04:00
block	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/sage/ceph-client	2013-09-19 12:50:37 -05:00
bluetooth	…
bus	ARM: SoC platform changes for 3.12	2013-09-06 13:30:06 -07:00
cdrom	…
char	Drivers: char: misc: 'misc_deregister()' changed the 'mutex_unlock' logic upon an error	2013-09-26 08:53:23 -07:00
clk	The common clk framework changes for 3.12 are dominated by clock driver	2013-09-09 15:49:04 -07:00
clocksource	Merge branch 'timers/core' of git://git.kernel.org/pub/scm/linux/kernel/git/tip/tip	2013-09-16 16:10:26 -04:00
connector	…
cpufreq	cpufreq: return EEXIST instead of EBUSY for second registering	2013-09-20 00:37:10 +02:00
cpuidle	ACPI and power management fixes for 3.12-rc1	2013-09-12 11:22:45 -07:00
crypto	Merge git://git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux	2013-09-07 12:53:35 +10:00
dca	…
devfreq	…
dio	…
dma	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
edac	Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile	2013-09-06 11:14:33 -07:00
eisa	…
extcon	extcon: arizona: Fix up minor coding style to remove unnecessary braces	2013-09-26 12:03:31 -07:00
firewire	firewire: ohci: Fix deadlock at bus reset	2013-08-29 22:35:05 +02:00
firmware	firmware/dmi_scan: drop OOM messages	2013-09-11 15:58:51 -07:00
fmc	…
gpio	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
gpu	Merge branch 'drm-fixes' of git://people.freedesktop.org/~airlied/linux	2013-09-22 19:51:49 -07:00
hid	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/jikos/hid	2013-09-17 21:54:05 -04:00
hsi	…
hv	hv: move ringbuffer bus attributes to dev_groups	2013-09-26 09:01:17 -07:00
hwmon	hwmon: (k10temp) remove unnecessary pci_set_drvdata()	2013-09-12 08:17:40 -07:00
hwspinlock	…
i2c	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
ide	ide: sgiioc4: Staticize ioc4_ide_attach_one()	2013-09-05 15:21:30 -04:00
idle	…
iio	iio:buffer_cb: Add missing iio_buffer_init()	2013-09-21 12:52:50 +01:00
infiniband	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
input	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2013-09-15 07:13:39 -04:00
iommu	IOMMU Updates for Linux v3.12	2013-09-12 11:29:26 -07:00
ipack	…
irqchip	ARM: SoC late changes for v3.12	2013-09-09 16:35:29 -07:00
isdn	isdn: hfcpci_softirq: get func return to suppress compiler warning	2013-09-15 22:27:04 -04:00
leds	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/cooloney/linux-leds	2013-09-12 11:35:33 -07:00
lguest	lguest: fix guest kernel stack overflow when TF bit set.	2013-09-06 08:09:27 +09:30
macintosh	…
mailbox	mailbox: remove unnecessary platform_set_drvdata()	2013-09-18 12:02:00 -07:00
md	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/viro/vfs	2013-09-12 15:01:38 -07:00
media	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
memory	ARM: SoC platform changes for 3.12	2013-09-06 13:30:06 -07:00
memstick	memstick: add support for legacy memorysticks	2013-09-11 15:59:35 -07:00
message	…
mfd	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
misc	Intel MIC Host Driver Changes for Virtio Devices.	2013-09-26 13:50:56 -07:00
mmc	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
mtd	mtd: nand: pxa3xx: Remove unneeded ifdef CONFIG_OF	2013-09-17 09:08:14 -07:00
net	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-19 13:57:28 -05:00
nfc	…
ntb	ntb: clean up unnecessary MSI/MSI-X capability find	2013-09-05 11:08:01 -07:00
nubus	…
of	Merge branch 'for-v3.12-fix' of git://git.linaro.org/people/mszyprowski/linux-dma-mapping	2013-09-11 19:11:59 -07:00
oprofile	oprofile: get rid of pointless forward declarations of struct super_block	2013-09-03 22:52:48 -04:00
parisc	PCI changes for the v3.12 merge window:	2013-09-03 16:24:35 -07:00
parport	drivers: parport: Kconfig: exclude h8300 for PARPORT_PC	2013-08-30 12:08:04 -07:00
pci	PCI / ACPI / PM: Clear pme_poll for devices in D3cold on wakeup	2013-09-20 00:24:43 +02:00
pcmcia	drivers/pcmcia/yenta_socket.c: convert to module_pci_driver	2013-09-26 08:56:34 -07:00
pinctrl	PTR_RET() is a weird name, and led to some confusing usage. We ended	2013-09-04 17:31:11 -07:00
platform	Merge branch 'for_linus' of git://cavan.codon.org.uk/platform-drivers-x86	2013-09-15 17:42:59 -04:00
pnp	pnp: change pnp bus pm_ops to invoke pnp driver dev_pm_ops if specified	2013-09-11 15:58:15 -07:00
power	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
pps	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
ps3	…
ptp	…
pwm	ARM: SoC cleanups for 3.12	2013-09-06 13:21:16 -07:00
rapidio	…
regulator	PTR_RET() is a weird name, and led to some confusing usage. We ended	2013-09-04 17:31:11 -07:00
remoteproc	…
reset	…
rpmsg	…
rtc	rtc: simplify devm_request_mem_region/devm_ioremap	2013-09-11 15:58:59 -07:00
s390	s390/vmcore: use vmcore for zfcpdump	2013-09-11 15:59:15 -07:00
sbus	…
scsi	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-09-19 13:57:28 -05:00
sfi	…
sh	…
sn	…
spi	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
ssb	…
staging	staging: iio: ade7854-spi: Fix return value	2013-09-18 19:43:33 +01:00
target	Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending	2013-09-12 16:11:45 -07:00
tc	…
thermal	drivers: thermal: add check when unregistering cpu cooling	2013-09-03 09:10:34 -04:00
tty	tty: disassociate_ctty() sends the extra SIGCONT	2013-09-17 21:53:32 -04:00
uio	uio: uio_sercos3: remove unnecessary pci_set_drvdata()	2013-09-26 08:47:25 -07:00
usb	usb: fixes for v3.12-rc2	2013-09-17 13:00:43 -07:00
uwb	…
vfio	vfio-pci: PCI hot reset interface	2013-09-04 11:28:04 -06:00
vhost	vhost-scsi: whitespace tweak	2013-09-17 22:56:09 +03:00
video	Bye, bye, WfW flag	2013-09-11 19:55:12 -07:00
virt	…
virtio	virtio_pci: pm: Use CONFIG_PM_SLEEP instead of CONFIG_PM	2013-09-09 10:02:53 +09:30
vlynq	…
vme	…
w1	Remove GENERIC_HARDIRQ config option	2013-09-13 15:09:52 +02:00
watchdog	Merge git://www.linux-watchdog.org/linux-watchdog	2013-09-12 08:45:53 -07:00
xen	Bug-fixes:	2013-09-12 11:28:24 -07:00
zorro	…
Kconfig	…
Makefile	…