kernel_optimize_test/include/uapi/linux/Kbuild

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# UAPI Header export list
header-y += android/
header-y += byteorder/
header-y += can/
header-y += caif/
header-y += dvb/
header-y += hdlc/
header-y += hsi/
header-y += iio/
header-y += isdn/
header-y += mmc/
header-y += nfsd/
header-y += raid/
header-y += spi/
header-y += sunrpc/
header-y += tc_act/
header-y += tc_ematch/
header-y += netfilter/
header-y += netfilter_arp/
header-y += netfilter_bridge/
header-y += netfilter_ipv4/
header-y += netfilter_ipv6/
header-y += usb/
header-y += wimax/
UAPI: Plumb the UAPI Kbuilds into the user header installation and checking Plumb the UAPI Kbuilds into the user header installation and checking system. As the headers are split the entries will be transferred across from the old Kbuild files to the UAPI Kbuild files. The changes made in this commit are: (1) Exported generated files (of which there are currently four) are moved to uapi/ directories under the appropriate generated/ directory, thus we get: include/generated/uapi/linux/version.h arch/x86/include/generated/uapi/asm/unistd_32.h arch/x86/include/generated/uapi/asm/unistd_64.h arch/x86/include/generated/uapi/asm/unistd_x32.h These paths were added to the build as -I flags in a previous patch. (2) scripts/Makefile.headersinst is now given the UAPI path to install from rather than the old path. It then determines the old path from that and includes that Kbuild also if it exists, thus permitting the headers to exist in either directory during the changeover. I also renamed the "install" variable to "installdir" as it refers to a directory not the install program. (3) scripts/headers_install.pl is altered to take a list of source file paths instead of just their names so that the makefile can tell it exactly where to find each file. For the moment, files can be obtained from one of four places for each output directory: .../include/uapi/foo/ .../include/generated/uapi/foo/ .../include/foo/ .../include/generated/foo/ The non-UAPI paths will be dropped later. Signed-off-by: David Howells <dhowells@redhat.com> Acked-by: Arnd Bergmann <arnd@arndb.de> Acked-by: Thomas Gleixner <tglx@linutronix.de> Acked-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Acked-by: Dave Jones <davej@redhat.com>
2012-10-03 01:01:57 +08:00
genhdr-y += version.h
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/a.out.h \
$(srctree)/arch/$(SRCARCH)/include/asm/a.out.h),)
header-y += a.out.h
endif
header-y += acct.h
header-y += adb.h
header-y += adfs_fs.h
header-y += affs_hardblocks.h
header-y += agpgart.h
header-y += aio_abi.h
header-y += am437x-vpfe.h
header-y += apm_bios.h
header-y += arcfb.h
header-y += atalk.h
header-y += atmapi.h
header-y += atmarp.h
header-y += atmbr2684.h
header-y += atmclip.h
header-y += atmdev.h
header-y += atm_eni.h
header-y += atm.h
header-y += atm_he.h
header-y += atm_idt77105.h
header-y += atmioc.h
header-y += atmlec.h
header-y += atmmpc.h
header-y += atm_nicstar.h
header-y += atmppp.h
header-y += atmsap.h
header-y += atmsvc.h
header-y += atm_tcp.h
header-y += atm_zatm.h
header-y += audit.h
header-y += auto_fs4.h
header-y += auto_fs.h
header-y += auxvec.h
header-y += ax25.h
header-y += b1lli.h
header-y += baycom.h
header-y += bcm933xx_hcs.h
header-y += bfs_fs.h
header-y += binfmts.h
header-y += blkpg.h
header-y += blktrace_api.h
header-y += bpf_common.h
header-y += bpf.h
header-y += bpqether.h
header-y += bsg.h
header-y += btrfs.h
header-y += can.h
header-y += capability.h
header-y += capi.h
header-y += cciss_defs.h
header-y += cciss_ioctl.h
header-y += cdrom.h
header-y += cgroupstats.h
header-y += chio.h
header-y += cm4000_cs.h
header-y += cn_proc.h
header-y += coda.h
header-y += coda_psdev.h
header-y += coff.h
header-y += connector.h
header-y += const.h
header-y += cramfs_fs.h
header-y += cuda.h
header-y += cyclades.h
header-y += cycx_cfm.h
header-y += dcbnl.h
header-y += dccp.h
header-y += dlmconstants.h
header-y += dlm_device.h
header-y += dlm.h
header-y += dlm_netlink.h
header-y += dlm_plock.h
header-y += dm-ioctl.h
header-y += dm-log-userspace.h
header-y += dn.h
header-y += dqblk_xfs.h
header-y += edd.h
header-y += efs_fs_sb.h
header-y += elfcore.h
header-y += elf-em.h
header-y += elf-fdpic.h
header-y += elf.h
header-y += errno.h
header-y += errqueue.h
header-y += ethtool.h
header-y += eventpoll.h
header-y += fadvise.h
header-y += falloc.h
header-y += fanotify.h
header-y += fb.h
header-y += fcntl.h
header-y += fd.h
header-y += fdreg.h
header-y += fib_rules.h
header-y += fiemap.h
header-y += filter.h
header-y += firewire-cdev.h
header-y += firewire-constants.h
header-y += flat.h
header-y += fou.h
header-y += fs.h
header-y += fsl_hypervisor.h
header-y += fuse.h
header-y += futex.h
header-y += gameport.h
header-y += genetlink.h
header-y += gen_stats.h
header-y += gfs2_ondisk.h
header-y += gigaset_dev.h
header-y += gsmmux.h
header-y += hdlcdrv.h
header-y += hdlc.h
header-y += hdreg.h
header-y += hiddev.h
header-y += hid.h
header-y += hidraw.h
header-y += hpet.h
header-y += hsr_netlink.h
header-y += hyperv.h
header-y += hysdn_if.h
header-y += i2c-dev.h
header-y += i2c.h
header-y += i2o-dev.h
header-y += i8k.h
header-y += icmp.h
header-y += icmpv6.h
header-y += if_addr.h
header-y += if_addrlabel.h
header-y += if_alg.h
header-y += if_arcnet.h
header-y += if_arp.h
header-y += if_bonding.h
header-y += if_bridge.h
header-y += if_cablemodem.h
header-y += if_eql.h
header-y += if_ether.h
header-y += if_fc.h
header-y += if_fddi.h
header-y += if_frad.h
header-y += if.h
header-y += if_hippi.h
header-y += if_infiniband.h
header-y += if_link.h
header-y += if_ltalk.h
header-y += if_packet.h
header-y += if_phonet.h
header-y += if_plip.h
header-y += if_ppp.h
header-y += if_pppol2tp.h
header-y += if_pppox.h
header-y += if_slip.h
header-y += if_team.h
header-y += if_tun.h
header-y += if_tunnel.h
header-y += if_vlan.h
header-y += if_x25.h
header-y += igmp.h
header-y += in6.h
header-y += inet_diag.h
header-y += in.h
header-y += inotify.h
header-y += input.h
header-y += in_route.h
header-y += ioctl.h
header-y += ip6_tunnel.h
header-y += ipc.h
header-y += ip.h
header-y += ipmi.h
header-y += ipmi_msgdefs.h
header-y += ipsec.h
header-y += ipv6.h
header-y += ipv6_route.h
header-y += ip_vs.h
header-y += ipx.h
header-y += irda.h
header-y += irqnr.h
header-y += isdn_divertif.h
header-y += isdn.h
header-y += isdnif.h
header-y += isdn_ppp.h
header-y += iso_fs.h
header-y += ivtvfb.h
header-y += ivtv.h
header-y += ixjuser.h
header-y += jffs2.h
header-y += joystick.h
header-y += kcmp.h
header-y += kdev_t.h
header-y += kd.h
header-y += kernelcapi.h
header-y += kernel.h
header-y += kernel-page-flags.h
header-y += kexec.h
header-y += keyboard.h
header-y += keyctl.h
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm.h \
$(srctree)/arch/$(SRCARCH)/include/asm/kvm.h),)
header-y += kvm.h
endif
ifneq ($(wildcard $(srctree)/arch/$(SRCARCH)/include/uapi/asm/kvm_para.h \
$(srctree)/arch/$(SRCARCH)/include/asm/kvm_para.h),)
header-y += kvm_para.h
endif
header-y += hw_breakpoint.h
header-y += l2tp.h
net: sync some IP headers with glibc Solution: ========= - Synchronize linux's `include/uapi/linux/in6.h' with glibc's `inet/netinet/in.h'. - Synchronize glibc's `inet/netinet/in.h with linux's `include/uapi/linux/in6.h'. - Allow including the headers in either other. - First header included defines the structures and macros. Details: ======== The kernel promises not to break the UAPI ABI so I don't see why we can't just have the two userspace headers coordinate? If you include the kernel headers first you get those, and if you include the glibc headers first you get those, and the following patch arranges a coordination and synchronization between the two. Let's handle `include/uapi/linux/in6.h' from linux, and `inet/netinet/in.h' from glibc and ensure they compile in any order and preserve the required ABI. These two patches pass the following compile tests: cat >> test1.c <<EOF int main (void) { return 0; } EOF gcc -c test1.c cat >> test2.c <<EOF int main (void) { return 0; } EOF gcc -c test2.c One wrinkle is that the kernel has a different name for one of the members in ipv6_mreq. In the kernel patch we create a macro to cover the uses of the old name, and while that's not entirely clean it's one of the best solutions (aside from an anonymous union which has other issues). I've reviewed the code and it looks to me like the ABI is assured and everything matches on both sides. Notes: - You want netinet/in.h to include bits/in.h as early as possible, but it needs in_addr so define in_addr early. - You want bits/in.h included as early as possible so you can use the linux specific code to define __USE_KERNEL_DEFS based on the _UAPI_* macro definition and use those to cull in.h. - glibc was missing IPPROTO_MH, added here. Compile tested and inspected. Reported-by: Thomas Backlund <tmb@mageia.org> Cc: Thomas Backlund <tmb@mageia.org> Cc: libc-alpha@sourceware.org Cc: YOSHIFUJI Hideaki <yoshfuji@linux-ipv6.org> Cc: David S. Miller <davem@davemloft.net> Tested-by: Cong Wang <amwang@redhat.com> Signed-off-by: Carlos O'Donell <carlos@redhat.com> Signed-off-by: Cong Wang <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-15 17:28:10 +08:00
header-y += libc-compat.h
header-y += limits.h
header-y += llc.h
header-y += loop.h
header-y += lp.h
header-y += lwtunnel.h
header-y += magic.h
header-y += major.h
header-y += map_to_7segment.h
header-y += matroxfb.h
header-y += mdio.h
header-y += media.h
header-y += media-bus-format.h
header-y += mei.h
sys_membarrier(): system-wide memory barrier (generic, x86) Here is an implementation of a new system call, sys_membarrier(), which executes a memory barrier on all threads running on the system. It is implemented by calling synchronize_sched(). It can be used to distribute the cost of user-space memory barriers asymmetrically by transforming pairs of memory barriers into pairs consisting of sys_membarrier() and a compiler barrier. For synchronization primitives that distinguish between read-side and write-side (e.g. userspace RCU [1], rwlocks), the read-side can be accelerated significantly by moving the bulk of the memory barrier overhead to the write-side. The existing applications of which I am aware that would be improved by this system call are as follows: * Through Userspace RCU library (http://urcu.so) - DNS server (Knot DNS) https://www.knot-dns.cz/ - Network sniffer (http://netsniff-ng.org/) - Distributed object storage (https://sheepdog.github.io/sheepdog/) - User-space tracing (http://lttng.org) - Network storage system (https://www.gluster.org/) - Virtual routers (https://events.linuxfoundation.org/sites/events/files/slides/DPDK_RCU_0MQ.pdf) - Financial software (https://lkml.org/lkml/2015/3/23/189) Those projects use RCU in userspace to increase read-side speed and scalability compared to locking. Especially in the case of RCU used by libraries, sys_membarrier can speed up the read-side by moving the bulk of the memory barrier cost to synchronize_rcu(). * Direct users of sys_membarrier - core dotnet garbage collector (https://github.com/dotnet/coreclr/issues/198) Microsoft core dotnet GC developers are planning to use the mprotect() side-effect of issuing memory barriers through IPIs as a way to implement Windows FlushProcessWriteBuffers() on Linux. They are referring to sys_membarrier in their github thread, specifically stating that sys_membarrier() is what they are looking for. To explain the benefit of this scheme, let's introduce two example threads: Thread A (non-frequent, e.g. executing liburcu synchronize_rcu()) Thread B (frequent, e.g. executing liburcu rcu_read_lock()/rcu_read_unlock()) In a scheme where all smp_mb() in thread A are ordering memory accesses with respect to smp_mb() present in Thread B, we can change each smp_mb() within Thread A into calls to sys_membarrier() and each smp_mb() within Thread B into compiler barriers "barrier()". Before the change, we had, for each smp_mb() pairs: Thread A Thread B previous mem accesses previous mem accesses smp_mb() smp_mb() following mem accesses following mem accesses After the change, these pairs become: Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses As we can see, there are two possible scenarios: either Thread B memory accesses do not happen concurrently with Thread A accesses (1), or they do (2). 1) Non-concurrent Thread A vs Thread B accesses: Thread A Thread B prev mem accesses sys_membarrier() follow mem accesses prev mem accesses barrier() follow mem accesses In this case, thread B accesses will be weakly ordered. This is OK, because at that point, thread A is not particularly interested in ordering them with respect to its own accesses. 2) Concurrent Thread A vs Thread B accesses Thread A Thread B prev mem accesses prev mem accesses sys_membarrier() barrier() follow mem accesses follow mem accesses In this case, thread B accesses, which are ensured to be in program order thanks to the compiler barrier, will be "upgraded" to full smp_mb() by synchronize_sched(). * Benchmarks On Intel Xeon E5405 (8 cores) (one thread is calling sys_membarrier, the other 7 threads are busy looping) 1000 non-expedited sys_membarrier calls in 33s =3D 33 milliseconds/call. * User-space user of this system call: Userspace RCU library Both the signal-based and the sys_membarrier userspace RCU schemes permit us to remove the memory barrier from the userspace RCU rcu_read_lock() and rcu_read_unlock() primitives, thus significantly accelerating them. These memory barriers are replaced by compiler barriers on the read-side, and all matching memory barriers on the write-side are turned into an invocation of a memory barrier on all active threads in the process. By letting the kernel perform this synchronization rather than dumbly sending a signal to every process threads (as we currently do), we diminish the number of unnecessary wake ups and only issue the memory barriers on active threads. Non-running threads do not need to execute such barrier anyway, because these are implied by the scheduler context switches. Results in liburcu: Operations in 10s, 6 readers, 2 writers: memory barriers in reader: 1701557485 reads, 2202847 writes signal-based scheme: 9830061167 reads, 6700 writes sys_membarrier: 9952759104 reads, 425 writes sys_membarrier (dyn. check): 7970328887 reads, 425 writes The dynamic sys_membarrier availability check adds some overhead to the read-side compared to the signal-based scheme, but besides that, sys_membarrier slightly outperforms the signal-based scheme. However, this non-expedited sys_membarrier implementation has a much slower grace period than signal and memory barrier schemes. Besides diminishing the number of wake-ups, one major advantage of the membarrier system call over the signal-based scheme is that it does not need to reserve a signal. This plays much more nicely with libraries, and with processes injected into for tracing purposes, for which we cannot expect that signals will be unused by the application. An expedited version of this system call can be added later on to speed up the grace period. Its implementation will likely depend on reading the cpu_curr()->mm without holding each CPU's rq lock. This patch adds the system call to x86 and to asm-generic. [1] http://urcu.so membarrier(2) man page: MEMBARRIER(2) Linux Programmer's Manual MEMBARRIER(2) NAME membarrier - issue memory barriers on a set of threads SYNOPSIS #include <linux/membarrier.h> int membarrier(int cmd, int flags); DESCRIPTION The cmd argument is one of the following: MEMBARRIER_CMD_QUERY Query the set of supported commands. It returns a bitmask of supported commands. MEMBARRIER_CMD_SHARED Execute a memory barrier on all threads running on the system. Upon return from system call, the caller thread is ensured that all running threads have passed through a state where all memory accesses to user-space addresses match program order between entry to and return from the system call (non-running threads are de facto in such a state). This covers threads from all pro=E2=80=90 cesses running on the system. This command returns 0. The flags argument needs to be 0. For future extensions. All memory accesses performed in program order from each targeted thread is guaranteed to be ordered with respect to sys_membarrier(). If we use the semantic "barrier()" to represent a compiler barrier forcing memory accesses to be performed in program order across the barrier, and smp_mb() to represent explicit memory barriers forcing full memory ordering across the barrier, we have the following ordering table for each pair of barrier(), sys_membarrier() and smp_mb(): The pair ordering is detailed as (O: ordered, X: not ordered): barrier() smp_mb() sys_membarrier() barrier() X X O smp_mb() X O O sys_membarrier() O O O RETURN VALUE On success, these system calls return zero. On error, -1 is returned, and errno is set appropriately. For a given command, with flags argument set to 0, this system call is guaranteed to always return the same value until reboot. ERRORS ENOSYS System call is not implemented. EINVAL Invalid arguments. Linux 2015-04-15 MEMBARRIER(2) Signed-off-by: Mathieu Desnoyers <mathieu.desnoyers@efficios.com> Reviewed-by: Paul E. McKenney <paulmck@linux.vnet.ibm.com> Reviewed-by: Josh Triplett <josh@joshtriplett.org> Cc: KOSAKI Motohiro <kosaki.motohiro@jp.fujitsu.com> Cc: Steven Rostedt <rostedt@goodmis.org> Cc: Nicholas Miell <nmiell@comcast.net> Cc: Ingo Molnar <mingo@redhat.com> Cc: Alan Cox <gnomes@lxorguk.ukuu.org.uk> Cc: Lai Jiangshan <laijs@cn.fujitsu.com> Cc: Stephen Hemminger <stephen@networkplumber.org> Cc: Thomas Gleixner <tglx@linutronix.de> Cc: Peter Zijlstra <peterz@infradead.org> Cc: David Howells <dhowells@redhat.com> Cc: Pranith Kumar <bobby.prani@gmail.com> Cc: Michael Kerrisk <mtk.manpages@gmail.com> Cc: Shuah Khan <shuahkh@osg.samsung.com> Signed-off-by: Andrew Morton <akpm@linux-foundation.org> Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>
2015-09-12 04:07:39 +08:00
header-y += membarrier.h
header-y += memfd.h
header-y += mempolicy.h
header-y += meye.h
header-y += mic_common.h
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>
2013-09-06 07:42:18 +08:00
header-y += mic_ioctl.h
header-y += mii.h
header-y += minix_fs.h
header-y += mman.h
header-y += mmtimer.h
header-y += mpls.h
header-y += mqueue.h
header-y += mroute6.h
header-y += mroute.h
header-y += msdos_fs.h
header-y += msg.h
header-y += mtio.h
header-y += nbd.h
header-y += ncp_fs.h
header-y += ncp.h
header-y += ncp_mount.h
header-y += ncp_no.h
2015-06-09 02:27:06 +08:00
header-y += ndctl.h
header-y += neighbour.h
header-y += netconf.h
header-y += netdevice.h
header-y += net_dropmon.h
header-y += netfilter_arp.h
header-y += netfilter_bridge.h
header-y += netfilter_decnet.h
header-y += netfilter.h
header-y += netfilter_ipv4.h
header-y += netfilter_ipv6.h
header-y += net.h
header-y += netlink_diag.h
header-y += netlink.h
header-y += netrom.h
header-y += net_namespace.h
header-y += net_tstamp.h
header-y += nfc.h
header-y += nfs2.h
header-y += nfs3.h
header-y += nfs4.h
header-y += nfs4_mount.h
header-y += nfsacl.h
header-y += nfs_fs.h
header-y += nfs.h
header-y += nfs_idmap.h
header-y += nfs_mount.h
header-y += nl80211.h
header-y += n_r3964.h
header-y += nubus.h
header-y += nvme.h
header-y += nvram.h
header-y += omap3isp.h
header-y += omapfb.h
header-y += oom.h
header-y += openvswitch.h
header-y += packet_diag.h
header-y += param.h
header-y += parport.h
header-y += patchkey.h
header-y += pci.h
header-y += pci_regs.h
header-y += perf_event.h
header-y += personality.h
header-y += pfkeyv2.h
header-y += pg.h
header-y += phantom.h
header-y += phonet.h
header-y += pktcdvd.h
header-y += pkt_cls.h
header-y += pkt_sched.h
header-y += pmu.h
header-y += poll.h
header-y += posix_types.h
header-y += ppdev.h
header-y += ppp-comp.h
header-y += ppp_defs.h
header-y += ppp-ioctl.h
header-y += pps.h
header-y += prctl.h
header-y += psci.h
header-y += ptp_clock.h
header-y += ptrace.h
header-y += qnx4_fs.h
header-y += qnxtypes.h
header-y += quota.h
header-y += radeonfb.h
header-y += random.h
header-y += raw.h
header-y += rds.h
header-y += reboot.h
header-y += reiserfs_fs.h
header-y += reiserfs_xattr.h
header-y += resource.h
header-y += rfkill.h
header-y += romfs_fs.h
header-y += rose.h
header-y += route.h
header-y += rtc.h
header-y += rtnetlink.h
header-y += scc.h
header-y += sched.h
header-y += scif_ioctl.h
header-y += screen_info.h
header-y += sctp.h
header-y += sdla.h
header-y += seccomp.h
header-y += securebits.h
header-y += selinux_netlink.h
header-y += sem.h
header-y += serial_core.h
header-y += serial.h
header-y += serial_reg.h
header-y += serio.h
header-y += shm.h
header-y += signalfd.h
header-y += signal.h
header-y += smiapp.h
header-y += snmp.h
header-y += sock_diag.h
header-y += socket.h
header-y += sockios.h
header-y += sonet.h
header-y += sonypi.h
header-y += soundcard.h
header-y += sound.h
header-y += stat.h
header-y += stddef.h
header-y += string.h
header-y += suspend_ioctls.h
header-y += swab.h
header-y += synclink.h
header-y += sysctl.h
header-y += sysinfo.h
target: Add a user-passthrough backstore Add a LIO storage engine that presents commands to userspace for execution. This would allow more complex backstores to be implemented out-of-kernel, and also make experimentation a-la FUSE (but at the SCSI level -- "SUSE"?) possible. It uses a mmap()able UIO device per LUN to share a command ring and data area. The commands are raw SCSI CDBs and iovs for in/out data. The command ring is also reused for returning scsi command status and optional sense data. This implementation is based on Shaohua Li's earlier version but heavily modified. Differences include: * Shared memory allocated by kernel, not locked-down user pages * Single ring for command request and response * Offsets instead of embedded pointers * Generic SCSI CDB passthrough instead of per-cmd specialization in ring format. * Uses UIO device instead of anon_file passed in mailbox. * Optional in-kernel handling of some commands. The main reason for these differences is to permit greater resiliency if the user process dies or hangs. Things not yet implemented (on purpose): * Zero copy. The data area is flexible enough to allow page flipping or backend-allocated pages to be used by fabrics, but it's not clear these are performance wins. Can come later. * Out-of-order command completion by userspace. Possible to add by just allowing userspace to change cmd_id in rsp cmd entries, but currently not supported. * No locks between kernel cmd submission and completion routines. Sounds like it's possible, but this can come later. * Sparse allocation of mmaped area. Current code vmallocs the whole thing. If the mapped area was larger and not fully mapped then the driver would have more freedom to change cmd and data area sizes based on demand. Current code open issues: * The use of idrs may be overkill -- we maybe can replace them with a simple counter to generate cmd_ids, and a hash table to get a cmd_id's associated pointer. * Use of a free-running counter for cmd ring instead of explicit modulo math. This would require power-of-2 cmd ring size. (Add kconfig depends NET - Randy) Signed-off-by: Andy Grover <agrover@redhat.com> Signed-off-by: Nicholas Bellinger <nab@linux-iscsi.org>
2014-10-02 07:07:05 +08:00
header-y += target_core_user.h
header-y += taskstats.h
header-y += tcp.h
header-y += tcp_metrics.h
header-y += telephony.h
header-y += termios.h
header-y += thermal.h
header-y += time.h
header-y += times.h
header-y += timex.h
header-y += tiocl.h
header-y += tipc_config.h
header-y += tipc_netlink.h
header-y += tipc.h
header-y += toshiba.h
header-y += tty_flags.h
header-y += tty.h
header-y += types.h
header-y += udf_fs_i.h
header-y += udp.h
header-y += uhid.h
header-y += uinput.h
header-y += uio.h
header-y += ultrasound.h
header-y += un.h
header-y += unistd.h
header-y += unix_diag.h
header-y += usbdevice_fs.h
header-y += usbip.h
header-y += utime.h
header-y += utsname.h
header-y += uuid.h
header-y += uvcvideo.h
header-y += v4l2-common.h
header-y += v4l2-controls.h
header-y += v4l2-dv-timings.h
header-y += v4l2-mediabus.h
header-y += v4l2-subdev.h
header-y += veth.h
header-y += vfio.h
header-y += vhost.h
header-y += videodev2.h
header-y += virtio_9p.h
header-y += virtio_balloon.h
header-y += virtio_blk.h
header-y += virtio_config.h
header-y += virtio_console.h
header-y += virtio_gpu.h
header-y += virtio_ids.h
header-y += virtio_input.h
header-y += virtio_net.h
header-y += virtio_pci.h
header-y += virtio_ring.h
header-y += virtio_rng.h
header-y += virtio_scsi.h
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next Pull networking updates from David Miller: 1) New offloading infrastructure and example 'rocker' driver for offloading of switching and routing to hardware. This work was done by a large group of dedicated individuals, not limited to: Scott Feldman, Jiri Pirko, Thomas Graf, John Fastabend, Jamal Hadi Salim, Andy Gospodarek, Florian Fainelli, Roopa Prabhu 2) Start making the networking operate on IOV iterators instead of modifying iov objects in-situ during transfers. Thanks to Al Viro and Herbert Xu. 3) A set of new netlink interfaces for the TIPC stack, from Richard Alpe. 4) Remove unnecessary looping during ipv6 routing lookups, from Martin KaFai Lau. 5) Add PAUSE frame generation support to gianfar driver, from Matei Pavaluca. 6) Allow for larger reordering levels in TCP, which are easily achievable in the real world right now, from Eric Dumazet. 7) Add a variable of napi_schedule that doesn't need to disable cpu interrupts, from Eric Dumazet. 8) Use a doubly linked list to optimize neigh_parms_release(), from Nicolas Dichtel. 9) Various enhancements to the kernel BPF verifier, and allow eBPF programs to actually be attached to sockets. From Alexei Starovoitov. 10) Support TSO/LSO in sunvnet driver, from David L Stevens. 11) Allow controlling ECN usage via routing metrics, from Florian Westphal. 12) Remote checksum offload, from Tom Herbert. 13) Add split-header receive, BQL, and xmit_more support to amd-xgbe driver, from Thomas Lendacky. 14) Add MPLS support to openvswitch, from Simon Horman. 15) Support wildcard tunnel endpoints in ipv6 tunnels, from Steffen Klassert. 16) Do gro flushes on a per-device basis using a timer, from Eric Dumazet. This tries to resolve the conflicting goals between the desired handling of bulk vs. RPC-like traffic. 17) Allow userspace to ask for the CPU upon what a packet was received/steered, via SO_INCOMING_CPU. From Eric Dumazet. 18) Limit GSO packets to half the current congestion window, from Eric Dumazet. 19) Add a generic helper so that all drivers set their RSS keys in a consistent way, from Eric Dumazet. 20) Add xmit_more support to enic driver, from Govindarajulu Varadarajan. 21) Add VLAN packet scheduler action, from Jiri Pirko. 22) Support configurable RSS hash functions via ethtool, from Eyal Perry. * git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1820 commits) Fix race condition between vxlan_sock_add and vxlan_sock_release net/macb: fix compilation warning for print_hex_dump() called with skb->mac_header net/mlx4: Add support for A0 steering net/mlx4: Refactor QUERY_PORT net/mlx4_core: Add explicit error message when rule doesn't meet configuration net/mlx4: Add A0 hybrid steering net/mlx4: Add mlx4_bitmap zone allocator net/mlx4: Add a check if there are too many reserved QPs net/mlx4: Change QP allocation scheme net/mlx4_core: Use tasklet for user-space CQ completion events net/mlx4_core: Mask out host side virtualization features for guests net/mlx4_en: Set csum level for encapsulated packets be2net: Export tunnel offloads only when a VxLAN tunnel is created gianfar: Fix dma check map error when DMA_API_DEBUG is enabled cxgb4/csiostor: Don't use MASTER_MUST for fw_hello call net: fec: only enable mdio interrupt before phy device link up net: fec: clear all interrupt events to support i.MX6SX net: fec: reset fep link status in suspend function net: sock: fix access via invalid file descriptor net: introduce helper macro for_each_cmsghdr ...
2014-12-12 06:27:06 +08:00
header-y += virtio_types.h
header-y += vm_sockets.h
header-y += vt.h
header-y += wait.h
header-y += wanrouter.h
header-y += watchdog.h
header-y += wimax.h
header-y += wireless.h
header-y += x25.h
header-y += xattr.h
header-y += xfrm.h
header-y += xilinx-v4l2-controls.h
header-y += zorro.h
header-y += zorro_ids.h
header-y += userfaultfd.h