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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byteorder
caif	caif: Remove my bouncing email address.	2013-04-23 13:25:51 -04:00
can	can: gw: add a per rule limitation of frame hops	2013-08-29 22:58:24 +02:00
cifs	cifs: Move and expand MAX_SERVER_SIZE definition	2013-09-08 14:34:22 -05:00
dvb	[media] demux.h: Remove duplicated enum	2013-04-08 06:53:15 -03:00
hdlc
hsi
isdn
mmc
netfilter	netfilter: add SYNPROXY core/target	2013-08-28 00:27:54 +02:00
netfilter_arp
netfilter_bridge	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
netfilter_ipv4	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
netfilter_ipv6	netfilter: fix struct ip6t_frag field description	2013-04-02 12:25:57 +02:00
nfsd
raid	UAPI: fix endianness conditionals in linux/raid/md_p.h	2013-03-13 15:21:49 -07:00
spi
sunrpc
tc_act
tc_ematch
usb	USB: move the definition of USB_MAXCHILDREN	2013-07-16 15:33:02 -07:00
wimax	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
a.out.h
acct.h	UAPI: fix endianness conditionals in linux/acct.h	2013-03-13 15:21:48 -07:00
adb.h
adfs_fs.h
affs_hardblocks.h
agpgart.h
aio_abi.h	UAPI: fix endianness conditionals in linux/aio_abi.h	2013-03-13 15:21:48 -07:00
apm_bios.h
arcfb.h
atalk.h
atm.h
atm_eni.h
atm_he.h
atm_idt77105.h
atm_nicstar.h
atm_tcp.h
atm_zatm.h
atmapi.h
atmarp.h
atmbr2684.h
atmclip.h
atmdev.h
atmioc.h
atmlec.h
atmmpc.h
atmppp.h
atmsap.h
atmsvc.h
audit.h	audit: Make testing for a valid loginuid explicit.	2013-05-07 22:27:15 -04:00
auto_fs.h	unbreak automounter support on 64-bit kernel with 32-bit userspace (v2)	2013-02-08 20:42:18 +01:00
auto_fs4.h
auxvec.h	powerpc: Add HWCAP2 aux entry	2013-04-26 16:08:16 +10:00
ax25.h
b1lli.h
baycom.h
bcm933xx_hcs.h	MIPS: BCM63XX: recognize Cable Modem firmware format	2013-07-01 15:10:53 +02:00
bfs_fs.h
binfmts.h
blkpg.h
blktrace_api.h
bpqether.h
bsg.h
btrfs.h	Btrfs: use __u64 in exported user headers	2013-09-01 08:16:01 -04:00
can.h
capability.h
capi.h
cciss_defs.h
cciss_ioctl.h
cdrom.h	libata: identify and init ZPODD devices	2013-01-21 15:40:35 -05:00
cgroupstats.h
chio.h
cm4000_cs.h	Omnikey Cardman 4000: pull in ioctl.h in user header	2013-08-28 19:26:38 -07:00
cn_proc.h	connector: Added coredumping event to the process connector	2013-03-20 13:23:21 -04:00
coda.h
coda_psdev.h
coff.h
connector.h	Drivers: hv: Add a new driver to support host initiated backup	2013-03-15 12:12:36 -07:00
const.h	linux/const.h: Add _BITUL() and _BITULL()	2013-06-25 15:50:04 -07:00
cramfs_fs.h
cuda.h
cyclades.h
cycx_cfm.h
dcbnl.h
dccp.h
dlm.h
dlm_device.h
dlm_netlink.h
dlm_plock.h
dlmconstants.h
dm-ioctl.h	dm: add statistics support	2013-09-05 20:46:06 -04:00
dm-log-userspace.h
dn.h	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
dqblk_xfs.h	quota: Add a new quotactl command Q_XGETQSTATV	2013-08-20 16:53:58 -05:00
edd.h
efs_fs_sb.h
elf-em.h	Move the EM_ARM and EM_AARCH64 definitions to uapi/linux/elf-em.h	2013-09-02 16:35:50 +01:00
elf-fdpic.h
elf.h	metag: ptrace: Implement NT_METAG_TLS	2013-03-27 14:37:47 +00:00
elfcore.h
errno.h
errqueue.h
ethtool.h	net: ethtool: disambiguate XCVR_* meaning	2013-05-27 22:42:50 -07:00
eventpoll.h
fadvise.h
falloc.h
fanotify.h
fb.h
fcntl.h
fd.h
fdreg.h
fib_rules.h	fib_rules: fix suppressor names and default values	2013-08-03 10:40:23 -07:00
fiemap.h	ext4: add support for extent pre-caching	2013-08-16 22:05:14 -04:00
filter.h	filter: add ANC_PAY_OFFSET instruction for loading payload start offset	2013-03-20 13:15:45 -04:00
firewire-cdev.h	firewire: fix libdc1394/FlyCap2 iso event regression	2013-07-27 20:24:36 +02:00
firewire-constants.h
flat.h
fs.h	fs: bump inode and dentry counters to long	2013-09-10 18:56:29 -04:00
fsl_hypervisor.h
fuse.h	fuse: add flag to turn on async direct IO	2013-05-01 14:37:21 +02:00
futex.h
gameport.h
gen_stats.h	net_sched: add 64bit rate estimators	2013-06-11 02:51:03 -07:00
genetlink.h
gfs2_ondisk.h
gigaset_dev.h
hdlc.h
hdlcdrv.h
hdreg.h
hid.h
hiddev.h
hidraw.h
hpet.h
hw_breakpoint.h
hysdn_if.h
i2c-dev.h
i2c.h
i2o-dev.h
i8k.h
icmp.h
icmpv6.h	ICMPv6: treat dest unreachable codes 5 and 6 as EACCES, not EPROTO	2013-09-03 22:11:44 -04:00
if.h
if_addr.h
if_addrlabel.h
if_alg.h
if_arcnet.h
if_arp.h	net: if_arp: add ARPHRD_NETLINK type	2013-06-24 16:39:05 -07:00
if_bonding.h
if_bridge.h	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
if_cablemodem.h	if_cablemodem.h: Add parenthesis around ioctl macros	2013-05-08 13:13:30 -07:00
if_eql.h
if_ether.h	net: add ETH_P_802_3_MIN	2013-03-28 01:20:42 -04:00
if_fc.h
if_fddi.h
if_frad.h
if_hippi.h
if_infiniband.h
if_link.h	vxlan: add ipv6 support	2013-08-31 22:30:00 -04:00
if_ltalk.h
if_packet.h	net: packet: add randomized fanout scheduler	2013-08-29 16:43:29 -04:00
if_phonet.h
if_plip.h
if_ppp.h
if_pppol2tp.h
if_pppox.h	pptp: fix byte order warnings	2013-08-13 15:10:22 -07:00
if_slip.h
if_team.h
if_tun.h	tun: Get skfilter layout	2013-08-21 12:21:45 -07:00
if_tunnel.h
if_vlan.h	net/8021q: Implement Multiple VLAN Registration Protocol (MVRP)	2013-02-10 20:37:22 -05:00
if_x25.h
igmp.h
in.h	net: sync some IP headers with glibc	2013-09-04 13:12:43 -04:00
in6.h	net: sync some IP headers with glibc	2013-09-04 13:12:43 -04:00
in_route.h
inet_diag.h
inotify.h
input.h	Merge branch 'for-linus' of git://git.kernel.org/pub/scm/linux/kernel/git/dtor/input	2013-09-15 07:13:39 -04:00
ioctl.h
ip.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-08-26 16:37:08 -04:00
ip6_tunnel.h
ip_vs.h	ipvs: SH fallback and L4 hashing	2013-06-26 18:01:46 +09:00
ipc.h
ipmi.h	ipmi: remove superfluous kernel/userspace explanation	2013-02-27 19:10:21 -08:00
ipmi_msgdefs.h
ipsec.h
ipv6.h	ipv6: drop fragmented ndisc packets by default (RFC 6980)	2013-08-29 15:32:08 -04:00
ipv6_route.h
ipx.h
irda.h
irqnr.h
isdn.h
isdn_divertif.h
isdn_ppp.h
isdnif.h
iso_fs.h
ivtv.h
ivtvfb.h
ixjuser.h
jffs2.h
joystick.h
Kbuild	Intel MIC Host Driver Changes for Virtio Devices.	2013-09-26 13:50:56 -07:00
kd.h
kdev_t.h
kernel-page-flags.h
kernel.h
kernelcapi.h
kexec.h
keyboard.h
keyctl.h
kvm.h	KVM: PPC: reserve a capability number for multitce support	2013-08-26 15:36:58 +03:00
kvm_para.h	kvm uapi: Add KICK_CPU and PV_UNHALT definition to uapi	2013-08-26 12:46:01 +03:00
l2tp.h
libc-compat.h	net: sync some IP headers with glibc	2013-09-04 13:12:43 -04:00
limits.h
llc.h
loop.h
lp.h
magic.h	hostfs: move HOSTFS_SUPER_MAGIC to <linux/magic.h>	2013-05-04 15:48:44 -04:00
major.h
map_to_7segment.h
matroxfb.h
mdio.h
media.h	[media] media: add support for decoder as one of media entity types	2013-03-21 14:05:31 -03:00
mei.h
mempolicy.h
meye.h	[media] meye: convert to the control framework	2013-02-05 18:23:47 -02:00
mic_common.h	Intel MIC Host Driver Changes for Virtio Devices.	2013-09-26 13:50:56 -07:00
mic_ioctl.h	Intel MIC Host Driver Changes for Virtio Devices.	2013-09-26 13:50:56 -07:00
mii.h
minix_fs.h
mman.h
mmtimer.h
module.h
mqueue.h
mroute.h	mcast: add multicast proxy support (IPv4 and IPv6)	2013-01-21 13:55:14 -05:00
mroute6.h	mcast: add multicast proxy support (IPv4 and IPv6)	2013-01-21 13:55:14 -05:00
msdos_fs.h	fatfs: add FAT_IOCTL_GET_VOLUME_ID	2013-07-09 10:33:25 -07:00
msg.h
mtio.h
n_r3964.h
nbd.h	nbd: support FLUSH requests	2013-02-27 19:10:22 -08:00
ncp.h
ncp_fs.h
ncp_mount.h
ncp_no.h
neighbour.h	vxlan: generalize forwarding tables	2013-03-17 12:23:46 -04:00
net.h
net_dropmon.h
net_tstamp.h
netconf.h
netdevice.h
netfilter.h
netfilter_arp.h
netfilter_bridge.h
netfilter_decnet.h
netfilter_ipv4.h
netfilter_ipv6.h
netlink.h	netlink: mmaped netlink: ring setup	2013-04-19 14:57:57 -04:00
netlink_diag.h	netlink: add RX/TX-ring support to netlink diag	2013-04-19 14:57:58 -04:00
netrom.h
nfc.h	NFC: netlink: Add result of firmware operation to completion event	2013-08-14 01:12:58 +02:00
nfs.h
nfs2.h
nfs3.h
nfs4.h
nfs4_mount.h
nfs_fs.h
nfs_idmap.h
nfs_mount.h
nfsacl.h
nl80211.h	cfg80211: add flags to cfg80211_rx_mgmt()	2013-08-23 16:06:03 +02:00
nubus.h
nvme.h	NVMe: Update nvme_id_power_state with latest spec	2013-09-03 16:32:26 -04:00
nvram.h
omap3isp.h
omapfb.h
oom.h
openvswitch.h	openvswitch: Add SCTP support	2013-08-26 14:03:13 -07:00
packet_diag.h	sock_diag: allow to dump bpf filters	2013-04-29 13:21:30 -04:00
param.h
parport.h
patchkey.h
pci.h
pci_regs.h	PCI: Add offsets of PCIe capability registers	2013-08-28 11:28:10 -06:00
perf_event.h	perf: Fix UAPI export of PERF_EVENT_IOC_ID	2013-09-18 11:29:07 +02:00
personality.h
pfkeyv2.h
pg.h
phantom.h
phonet.h
pkt_cls.h
pkt_sched.h	pkt_sched: fq: Fair Queue packet scheduler	2013-08-29 21:38:31 -04:00
pktcdvd.h
pmu.h
poll.h
posix_types.h
ppdev.h
ppp-comp.h
ppp-ioctl.h
ppp_defs.h
pps.h
prctl.h
ptp_clock.h
ptrace.h	ptrace: add ability to get/set signal-blocked mask	2013-07-03 16:08:01 -07:00
qnx4_fs.h
qnxtypes.h
quota.h
radeonfb.h
random.h
raw.h
rds.h
reboot.h
reiserfs_fs.h
reiserfs_xattr.h	xattr: Constify ->name member of "struct xattr".	2013-07-25 19:30:03 +10:00
resource.h
rfkill.h	rfkill: Add NFC to the list of supported radios	2013-04-12 16:54:38 +02:00
romfs_fs.h
rose.h
route.h
rtc.h
rtnetlink.h	tcp: introduce a per-route knob for quick ack	2013-06-19 23:06:51 -07:00
scc.h
sched.h
screen_info.h
sctp.h	net: sctp: trivial: update mailing list address	2013-07-24 17:53:38 -07:00
sdla.h
seccomp.h
securebits.h
selinux_netlink.h
sem.h
serial.h
serial_core.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/cmetcalf/linux-tile	2013-09-06 11:14:33 -07:00
serial_reg.h	Revert "OMAP: UART: Keep the TX fifo full when possible"	2013-08-27 16:02:18 -07:00
serio.h
shm.h
signal.h
signalfd.h
snmp.h	Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net	2013-08-16 15:37:26 -07:00
sock_diag.h
socket.h
sockios.h
som.h
sonet.h
sonypi.h
sound.h
soundcard.h
stat.h
stddef.h
string.h
suspend_ioctls.h
swab.h
synclink.h
sysctl.h
sysinfo.h
taskstats.h
tcp.h	tcp: TCP_NOTSENT_LOWAT socket option	2013-07-24 17:54:48 -07:00
tcp_metrics.h
telephony.h
termios.h
time.h	timekeeping: Add CLOCK_TAI clockid	2013-03-22 16:19:59 -07:00
times.h
timex.h
tiocl.h
tipc.h	tipc: update code comments to reflect new uapi header path	2013-06-17 15:53:00 -07:00
tipc_config.h	tipc: update code comments to reflect new uapi header path	2013-06-17 15:53:00 -07:00
toshiba.h
tty.h
tty_flags.h
types.h
udf_fs_i.h
udp.h
uhid.h	HID: uhid: use generic hidinput_input_event()	2013-07-31 10:33:05 +02:00
uinput.h
uio.h
ultrasound.h
un.h
unistd.h
unix_diag.h	net: fix *_DIAG_MAX constants	2013-03-21 12:36:33 -04:00
usbdevice_fs.h
utime.h
utsname.h
uuid.h
uvcvideo.h
v4l2-common.h
v4l2-controls.h	[media] V4L: Add VP8 encoder controls	2013-08-18 07:13:36 -03:00
v4l2-dv-timings.h	[media] v4l2-dv-timings.h: remove duplicate V4L2_DV_BT_DMT_1366X768P60	2013-08-18 08:13:51 -03:00
v4l2-mediabus.h	[media] v4l: Add media format codes for ARGB8888 and AYUV8888 on 32-bit busses	2013-08-18 07:23:07 -03:00
v4l2-subdev.h
veth.h
vfio.h	vfio-pci: PCI hot reset interface	2013-09-04 11:28:04 -06:00
vhost.h	tcm_vhost: header split up	2013-05-02 13:40:15 +03:00
videodev2.h	[media] videodev2.h: defines to calculate blanking and frame sizes	2013-08-18 08:17:35 -03:00
virtio_9p.h
virtio_balloon.h	virtio: do not export "u16" and "u64" to userspace	2013-04-02 16:42:58 +10:30
virtio_blk.h
virtio_config.h	virtio: VIRTIO_F_ANY_LAYOUT feature	2013-07-09 10:47:45 +09:30
virtio_console.h	Simple warning fix for module sections. If too late to pull, no big deal.	2013-07-03 13:09:06 -07:00
virtio_ids.h	caif_virtio: Introduce caif over virtio	2013-03-20 14:06:06 +10:30
virtio_net.h	uapi: Convert some uses of 6 to ETH_ALEN	2013-08-02 12:33:54 -07:00
virtio_pci.h	virtio_pci: better macro exported in uapi	2013-05-20 12:08:09 +09:30
virtio_ring.h
virtio_rng.h
vm_sockets.h	VSOCK: Split vm_sockets.h into kernel/uapi	2013-03-08 12:24:48 -05:00
vt.h
wait.h
wanrouter.h	wanrouter: delete now orphaned header content, files/drivers	2013-01-31 19:56:35 -05:00
watchdog.h
wimax.h
wireless.h
x25.h
xattr.h	hfsplus: add osx.* prefix for handling namespace of Mac OS X extended attributes	2013-02-27 19:10:10 -08:00
xfrm.h	xfrm: allow to avoid copying DSCP during encapsulation	2013-03-06 07:02:45 +01:00