Eric Lee / smarc-fsl-linux-kernel

23 May, 2014

1 commit

02 Apr, 2014

1 commit

  • 408eccce3   net: ptp: move PTP classifier in its own file ... Browse Code »

    This commit fixes a build error reported by Fengguang, that is
    triggered when CONFIG_NETWORK_PHY_TIMESTAMPING is not set:

    ERROR: "ptp_classify_raw" [drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.ko] undefined!

    The fix is to introduce its own file for the PTP BPF classifier,
    so that PTP_1588_CLOCK and/or NETWORK_PHY_TIMESTAMPING can select
    it independently from each other. IXP4xx driver on ARM needs to
    select it as well since it does not seem to select PTP_1588_CLOCK
    or similar that would pull it in automatically.

    This also allows for hiding all of the internals of the BPF PTP
    program inside that file, and only exporting relevant API bits
    to drivers.

    This patch also adds a kdoc documentation of ptp_classify_raw()
    API to make it clear that it can return PTP_CLASS_* defines. Also,
    the BPF program has been translated into bpf_asm code, so that it
    can be more easily read and altered (extensively documented in [1]).

    In the kernel tree under tools/net/ we have bpf_asm and bpf_dbg
    tools, so the commented program can simply be translated via
    `./bpf_asm -c prog` where prog is a file that contains the
    commented code. This makes it easily readable/verifiable and when
    there's a need to change something, jump offsets etc do not need
    to be replaced manually which can be very error prone. Instead,
    a newly translated version via bpf_asm can simply replace the old
    code. I have checked opcode diffs before/after and it's the very
    same filter.

    [1] Documentation/networking/filter.txt

    Fixes: 164d8c666521 ("net: ptp: do not reimplement PTP/BPF classifier")
    Reported-by: Fengguang Wu
    Signed-off-by: Daniel Borkmann
    Signed-off-by: Alexei Starovoitov
    Cc: Richard Cochran
    Cc: Jiri Benc
    Acked-by: Richard Cochran
    Signed-off-by: David S. Miller

    Daniel Borkmann
     

04 Jan, 2014

2 commits

  • 86f8515f9   net: netprio: rename config to be more consistent with cgroup configs ... Browse Code »

    While we're at it and introduced CGROUP_NET_CLASSID, lets also make
    NETPRIO_CGROUP more consistent with the rest of cgroups and rename it
    into CONFIG_CGROUP_NET_PRIO so that for networking, we now have
    CONFIG_CGROUP_NET_{PRIO,CLASSID}. This not only makes the CONFIG
    option consistent among networking cgroups, but also among cgroups
    CONFIG conventions in general as the vast majority has a prefix of
    CONFIG_CGROUP_.

    Signed-off-by: Daniel Borkmann
    Cc: Zefan Li
    Cc: cgroups@vger.kernel.org
    Acked-by: Li Zefan
    Signed-off-by: Pablo Neira Ayuso

    Daniel Borkmann
     
  • fe1217c4f   net: net_cls: move cgroupfs classid handling into core ... Browse Code »

    Zefan Li requested [1] to perform the following cleanup/refactoring:

    - Split cgroupfs classid handling into net core to better express a
    possible more generic use.

    - Disable module support for cgroupfs bits as the majority of other
    cgroupfs subsystems do not have that, and seems to be not wished
    from cgroup side. Zefan probably might want to follow-up for netprio
    later on.

    - By this, code can be further reduced which previously took care of
    functionality built when compiled as module.

    cgroupfs bits are being placed under net/core/netclassid_cgroup.c, so
    that we are consistent with {netclassid,netprio}_cgroup naming that is
    under net/core/ as suggested by Zefan.

    No change in functionality, but only code refactoring that is being
    done here.

    [1] http://patchwork.ozlabs.org/patch/304825/

    Suggested-by: Li Zefan
    Signed-off-by: Daniel Borkmann
    Cc: Zefan Li
    Cc: Thomas Graf
    Cc: cgroups@vger.kernel.org
    Acked-by: Li Zefan
    Signed-off-by: Pablo Neira Ayuso

    Daniel Borkmann
     

19 Feb, 2013

2 commits

07 Dec, 2011

1 commit

29 Nov, 2011

1 commit

  • 0744dd00c   net: introduce skb_flow_dissect() ... Browse Code »

    We use at least two flow dissectors in network stack, with known
    limitations and code duplication.

    Introduce skb_flow_dissect() to factorize this, highly inspired from
    existing dissector from __skb_get_rxhash()

    Note : We extensively use skb_header_pointer(), this permits us to not
    touch skb at all.

    Signed-off-by: Eric Dumazet
    Signed-off-by: David S. Miller

    Eric Dumazet
     

23 Nov, 2011

1 commit

  • 5bc1421e3   net: add network priority cgroup infrastructure (v4) ... Browse Code »

    This patch adds in the infrastructure code to create the network priority
    cgroup. The cgroup, in addition to the standard processes file creates two
    control files:

    1) prioidx - This is a read-only file that exports the index of this cgroup.
    This is a value that is both arbitrary and unique to a cgroup in this subsystem,
    and is used to index the per-device priority map

    2) priomap - This is a writeable file. On read it reports a table of 2-tuples
    where name is the name of a network interface and priority is
    indicates the priority assigned to frames egresessing on the named interface and
    originating from a pid in this cgroup

    This cgroup allows for skb priority to be set prior to a root qdisc getting
    selected. This is benenficial for DCB enabled systems, in that it allows for any
    application to use dcb configured priorities so without application modification

    Signed-off-by: Neil Horman
    Signed-off-by: John Fastabend
    CC: Robert Love
    CC: "David S. Miller"
    Signed-off-by: David S. Miller

    Neil Horman
     

07 Aug, 2011

1 commit

  • 6e5714eaf   net: Compute protocol sequence numbers and fragment IDs using MD5. ... Browse Code »

    Computers have become a lot faster since we compromised on the
    partial MD4 hash which we use currently for performance reasons.

    MD5 is a much safer choice, and is inline with both RFC1948 and
    other ISS generators (OpenBSD, Solaris, etc.)

    Furthermore, only having 24-bits of the sequence number be truly
    unpredictable is a very serious limitation. So the periodic
    regeneration and 8-bit counter have been removed. We compute and
    use a full 32-bit sequence number.

    For ipv6, DCCP was found to use a 32-bit truncated initial sequence
    number (it needs 43-bits) and that is fixed here as well.

    Reported-by: Dan Kaminsky
    Tested-by: Willy Tarreau
    Signed-off-by: David S. Miller

    David S. Miller
     

19 Jul, 2010

1 commit

  • c1f19b51d   net: support time stamping in phy devices. ... Browse Code »

    This patch adds a new networking option to allow hardware time stamps
    from PHY devices. When enabled, likely candidates among incoming and
    outgoing network packets are offered to the PHY driver for possible
    time stamping. When accepted by the PHY driver, incoming packets are
    deferred for later delivery by the driver.

    The patch also adds phylib driver methods for the SIOCSHWTSTAMP ioctl
    and callbacks for transmit and receive time stamping. Drivers may
    optionally implement these functions.

    Signed-off-by: Richard Cochran
    Signed-off-by: David S. Miller

    Richard Cochran
     

04 Apr, 2010

2 commits

  • 22bedad3c   net: convert multicast list to list_head ... Browse Code »

    Converts the list and the core manipulating with it to be the same as uc_list.

    +uses two functions for adding/removing mc address (normal and "global"
    variant) instead of a function parameter.
    +removes dev_mcast.c completely.
    +exposes netdev_hw_addr_list_* macros along with __hw_addr_* functions for
    manipulation with lists on a sandbox (used in bonding and 80211 drivers)

    Signed-off-by: Jiri Pirko
    Signed-off-by: David S. Miller

    Jiri Pirko
     
  • a748ee242   net: move address list functions to a separate file ... Browse Code »

    +little renaming of unicast functions to be smooth with multicast ones

    Signed-off-by: Jiri Pirko
    Signed-off-by: David S. Miller

    Jiri Pirko
     

03 Dec, 2009

1 commit

  • c81c2d954   skbuff: remove skb_dma_map/unmap ... Browse Code »

    The two functions skb_dma_map/unmap are unsafe to use as they cause
    problems when packets are cloned and sent to multiple devices while a HW
    IOMMU is enabled. Due to this it is best to remove the code so it is not
    used by any other network driver maintainters.

    Signed-off-by: Alexander Duyck
    Signed-off-by: Jeff Kirsher
    Signed-off-by: David S. Miller

    Alexander Duyck
     

14 Mar, 2009

2 commits

11 Sep, 2008

1 commit

11 Oct, 2007

2 commits

  • 8b41d1887   [NET]: Fix running without sysfs ... Browse Code »

    When sysfs support is compiled out the kernel still keeps and maintains
    the kobject tree. So it is not safe to skip our kobject reference counting or
    to avoid becoming members of the kobject tree. It is safe to not add
    the networking specific sysfs attributes.

    This patch removes the sysfs special cases from net/core/dev.c
    renames functions from netdev_sysfs_xxxx to netdev_kobject_xxxx
    and always compiles in net-sysfs.c

    net-sysfs.c is modified with a CONFIG_SYSFS guard around the parts
    that are actually sysfs specific.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     
  • 5f256becd   [NET]: Basic network namespace infrastructure. ... Browse Code »

    This is the basic infrastructure needed to support network
    namespaces. This infrastructure is:
    - Registration functions to support initializing per network
    namespace data when a network namespaces is created or destroyed.

    - struct net. The network namespace data structure.
    This structure will grow as variables are made per network
    namespace but this is the minimal starting point.

    - Functions to grab a reference to the network namespace.
    I provide both get/put functions that keep a network namespace
    from being freed. And hold/release functions serve as weak references
    and will warn if their count is not zero when the data structure
    is freed. Useful for dealing with more complicated data structures
    like the ipv4 route cache.

    - A list of all of the network namespaces so we can iterate over them.

    - A slab for the network namespace data structure allowing leaks
    to be spotted.

    Signed-off-by: Eric W. Biederman
    Signed-off-by: David S. Miller

    Eric W. Biederman
     

27 Apr, 2007

1 commit

03 Dec, 2006

1 commit

23 Sep, 2006

1 commit

03 Aug, 2006

1 commit

18 Jun, 2006

1 commit

31 Jan, 2006

1 commit

  • d86b5e0e6   [PATCH] net/: fix the WIRELESS_EXT abuse ... Browse Code »

    This patch contains the following changes:
    - add a CONFIG_WIRELESS_EXT select'ed by NET_RADIO for conditional
    code
    - remove the now no longer required #ifdef CONFIG_NET_RADIO from some
    #include's

    Based on a patch by Jean Tourrilhes .

    Signed-off-by: Adrian Bunk
    Signed-off-by: John W. Linville

    Adrian Bunk
     

30 Aug, 2005

1 commit

20 Jul, 2005

1 commit

19 Jun, 2005

1 commit

  • 0e87506fc   [NET] Generalise tcp_listen_opt ... Browse Code »

    This chunks out the accept_queue and tcp_listen_opt code and moves
    them to net/core/request_sock.c and include/net/request_sock.h, to
    make it useful for other transport protocols, DCCP being the first one
    to use it.

    Next patches will rename tcp_listen_opt to accept_sock and remove the
    inline tcp functions that just call a reqsk_queue_ function.

    Signed-off-by: Arnaldo Carvalho de Melo
    Signed-off-by: David S. Miller

    Arnaldo Carvalho de Melo
     

17 Apr, 2005

1 commit

  • 1da177e4c   Linux-2.6.12-rc2 ... Browse Code »

    Initial git repository build. I'm not bothering with the full history,
    even though we have it. We can create a separate "historical" git
    archive of that later if we want to, and in the meantime it's about
    3.2GB when imported into git - space that would just make the early
    git days unnecessarily complicated, when we don't have a lot of good
    infrastructure for it.

    Let it rip!

    Linus Torvalds