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Using this also provides opportunities for introducing
inet_csk_alloc_skb that would call alloc_skb, account it to the sock
and skb_reserve(max_header), but I'll leave this for later, for now
using sk_prot->max_header consistently is enough.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I.e. they should be just ignored, but we have to use 'break', not 'continue',
as we have to possibly reset the mandatory flag.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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Update version to 3.52.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add fw_version information to ethtool -i.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Some nvram related cleanup:
1. Add a tg3_nvram_read_swab() since swabing the data is frequently
done.
2. Add a function to convert nvram address to physical address
instead of doing it in 2 separate places.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Ethtool memory test on 5787 requires a new memory table.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support one-shot MSI on 5787.
This one-shot MSI idea is credited to David Miller. In this mode, MSI
disables itself automatically after it is generated, saving the driver
a register access to disable it for NAPI.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support ipv6 tx csum on 5787 by setting NETIF_F_HW_CSUM.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support 5787 hardware TSO using a new flag TG3_FLG2_HW_TSO_2.
Since the TSO interface is slightly different and these chips have
finally fixed the 4GB DMA problem and do not have the 40-bit DMA
problem, a new hard_start_xmit is used for these chips. All previous
chips will use the old hard_start_xmit that is now renamed
tg3_start_xmit_dma_bug().
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Support additional nvrams and new nvram format for 5787 and 5754.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add basic support for 2 new chips 5787 and 5754.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Here's an updated copy of the patch to use fget_light in net/socket.c.
Rerunning the tests show a drop of ~80Mbit/s on average, which looks
bad until you see the drop in cpu usage from ~89% to ~82%. That will
get fixed in another patch...
Before: max 8113.70, min 8026.32, avg 8072.34
87380 16384 16384 10.01 8045.55 87.11 87.11 1.774 1.774
87380 16384 16384 10.01 8065.14 90.86 90.86 1.846 1.846
87380 16384 16384 10.00 8077.76 89.85 89.85 1.822 1.822
87380 16384 16384 10.00 8026.32 89.80 89.80 1.833 1.833
87380 16384 16384 10.01 8108.59 89.81 89.81 1.815 1.815
87380 16384 16384 10.01 8034.53 89.01 89.01 1.815 1.815
87380 16384 16384 10.00 8113.70 90.45 90.45 1.827 1.827
87380 16384 16384 10.00 8111.37 89.90 89.90 1.816 1.816
87380 16384 16384 10.01 8077.75 87.96 87.96 1.784 1.784
87380 16384 16384 10.00 8062.70 90.25 90.25 1.834 1.834
After: max 8035.81, min 7963.69, avg 7998.14
87380 16384 16384 10.01 8000.93 82.11 82.11 1.682 1.682
87380 16384 16384 10.01 8016.17 83.67 83.67 1.710 1.710
87380 16384 16384 10.01 7963.69 83.47 83.47 1.717 1.717
87380 16384 16384 10.01 8014.35 81.71 81.71 1.671 1.671
87380 16384 16384 10.00 7967.68 83.41 83.41 1.715 1.715
87380 16384 16384 10.00 7995.22 81.00 81.00 1.660 1.660
87380 16384 16384 10.00 8002.61 83.90 83.90 1.718 1.718
87380 16384 16384 10.00 8035.81 81.71 81.71 1.666 1.666
87380 16384 16384 10.01 8005.36 82.56 82.56 1.690 1.690
87380 16384 16384 10.00 7979.61 82.50 82.50 1.694 1.694
Signed-off-by: Benjamin LaHaise <bcrl@linux.intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The functions list_del followed by list_add_tail is equivalent to the
existing inline list_move_tail. list_move_tail avoids unnecessary
_LIST_POISON.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The Netsukuku daemon is using the same number to mark its routes, you
can see it here:
http://hinezumilabs.org/cgi-bin/viewcvs.cgi/netsukuku/src/krnl_route.h?rev=HEAD&content-type=text/vnd.viewcvs-markup
Signed-off-by: David S. Miller <davem@davemloft.net>
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struct neigh_ops currently has a destructor field, which no in-kernel
drivers outside of infiniband use. The infiniband/ulp/ipoib in-tree
driver stashes some info in the neighbour structure (the results of
the second-stage lookup from ARP results to real link-level path), and
it uses neigh->ops->destructor to get a callback so it can clean up
this extra info when a neighbour is freed. We've run into problems
with this: since the destructor is in an ops field that is shared
between neighbours that may belong to different net devices, there's
no way to set/clear it safely.
The following patch moves this field to neigh_parms where it can be
safely set, together with its twin neigh_setup. Two additional
patches in the patch series update ipoib to use this new interface.
Signed-off-by: Michael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: Roland Dreier <rolandd@cisco.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Due to the thread's lock changes, we're at a new version now.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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As suggested by Arnaldo, this patch replaces the
thread_lock()/thread_unlock() by directly calls to
mutex_lock()/mutex_unlock().
This change makes the code a bit more readable, and the direct calls
are used everywhere in the kernel.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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pktgen's thread semaphores are strict mutexes, convert them to the
mutex implementation.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch turns the RTNL from a semaphore to a new 2.6.16 mutex and
gets rid of some of the leftover legacy.
Signed-off-by: Stephen Hemminger <shemminger@osdl.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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First, it warns when PAGE_SIZE >= 64K because the ctx_len
field is 16-bits.
Secondly, if there are any real length limitations it can
be verified by the security layer security_xfrm_state_alloc()
call.
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of estimating the time since the last congestion event, count
it directly.
Signed-off-by: Baruch Even <baruch@ev-en.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Account for delayed-ACKs in H-TCP.
Delayed-ACKs cause H-TCP to be less aggressive than its design calls
for. It is especially true when the receiver is a Linux machine where
the average delayed ack is over 3 packets with values of 7 not unheard
of.
Signed-off-By: Baruch Even <baruch@ev-en.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Use functions to calculate jiffies from milliseconds and not the old,
crude method of dividing HZ by a value. Ensures more accurate values
even in the face of strange HZ values.
Signed-off-By: Baruch Even <baruch@ev-en.org>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Return -ESRCH from cn_netlink_send() when there are not listeners,
just as it could be done by netlink_broadcast(). Propagate
netlink_broadcast() error back to the caller.
Signed-off-by: Evgeniy Polyakov <johnpol@2ka.mipt.ru>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Here goes a patch for supporting TOIM3232 based serial IrDA dongles.
The code is based on the tekram dongle code.
It's been tested with a TOIM3232 based IRWave 320S dongle. It may work
for TOIM4232 dongles, although it's not been tested.
Signed-off-by: David Basden <davidb-irda@rcpt.to>
Signed-off-by: Samuel Ortiz <samuel.ortiz@nokia.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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With all the previous changes, we're at a new version now.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This patch ports the per-thread interface list list to the in-kernel
linked list implementation. In the general, the resulting code is a
bit simpler.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Even if pktgen's thread initialization fails for all CPUs, the module
will be successfully loaded.
This patch changes that behaivor, by returning an error on module load time,
and also freeing all the resources allocated. It also prints a warning if a
thread initialization has failed.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Free all the alocated resources if kernel_thread() call fails.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The final result is a simpler and smaller code.
Note that I'm adding a new member in the struct pktgen_thread called
'removed'. The reason is that I didn't find a better wait condition to
be used in the place of the replaced one.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Lindet run, with some fixes made by hand.
Signed-off-by: Luiz Capitulino <lcapitulino@mandriva.com.br>
Signed-off-by: David S. Miller <davem@davemloft.net>
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According to dccp draft (draft-ietf-dccp-spec-13.txt) section 5.8.2
(Mandatory Option) the following patch correct the handling of the
following cases:
1) "... and any Mandatory options received on DCCP-Data packets MUST be
ignored."
2) "The connection is in error and should be reset with Reset Code 5, ...
if option O is absent (Mandatory was the last byte of the option list), or
if option O equals Mandatory."
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No changes in the logic where made.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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No changes in the logic were made, just removing trailing whitespaces,
etc.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Consolidating open coded sequences in tcp and dccp, v4 and v6.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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I guess I forgot to add it, nah, now it just works:
18:04:33.274066 IP6 ::1.1476 > ::1.5001: request (service=0)
18:04:33.334482 IP6 ::1.5001 > ::1.1476: reset (code=bad_service_code)
Ditched IP_DCCP_UNLOAD_HACK, as now we would have to do it for both
IPv6 and IPv4, so I'll come up with another way for freeing the
control sockets in upcoming changesets.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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There's no reason for struct dccp_v4_prot being global.
Signed-off-by: Adrian Bunk <bunk@stusta.de>
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: David S. Miller <davem@davemloft.net>
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fib_triestats has been buggy and caused oopses some platforms as
openwrt. The patch below should cure those problems.
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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In some kernel configs /proc functions seems to be accessed before the
trie is initialized. The patch below checks for this.
Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Fix-up tg3_get_ringparam() to return the correct parameters.
Set the jumbo rx ring parameter only if it is supported by the chip
and currently in use.
Add missing value for tx_max_pending, noticed by Rick Jones.
Update version to 3.51.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Add missing netif_running() checks in tg3's dev->set_multicast_list()
and dev->set_mac_address(). If not netif_running(), these 2 calls can
simply return 0 after storing the new settings if required.
Signed-off-by: Michael Chan <mchan@broadcom.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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This moves some TCP-specific MTU probing state out of
inet_connection_sock back to tcp_sock.
Signed-off-by: John Heffner <jheffner@psc.edu>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Instead of doing a memset then initialization of the fields of the scm
structure, just initialize all the members explicitly. Prevent reloading
of current on x86 and x86-64 by storing the value in a local variable for
subsequent dereferences. This is worth a ~7KB/s increase in af_unix
bandwidth. Note that we avoid the issues surrounding potentially
uninitialized members of the ucred structure by constructing a struct
ucred instead of assigning the members individually, which forces the
compiler to zero any padding.
[ I modified the patch not to use the aggregate assignment since
gcc-3.4.x and earlier cannot optimize that properly at all even
though gcc-4.0.x and later can -DaveM ]
Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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The patch below replaces a divide by 2 with a shift -- sk_sndbuf is an
integer, so gcc emits an idiv, which takes 10x longer than a shift by 1.
This improves af_unix bandwidth by ~6-10K/s. Also, tidy up the comment
to fit in 80 columns while we're at it.
Signed-off-by: Benjamin LaHaise <benjamin.c.lahaise@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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o Uninline kfree_skb, which saves some 15k of object code on my notebook.
o Allow kfree_skb to be called with a NULL argument.
Subsequent patches can remove conditional from drivers and further
reduce source and object size.
Signed-off-by: Jörn Engel <joern@wohnheim.fh-wedel.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Thanks to Leslie Harlley Watter <leslie@watter.org> for reporting the
problem an testing this patch.
Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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Signed-off-by: Arnaldo Carvalho de Melo <acme@mandriva.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
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