13 years ago[CCID3]: Fix use of invalid loss intervals
Ian McDonald [Tue, 20 Mar 2007 17:46:52 +0000]
[CCID3]: Fix use of invalid loss intervals

This fixes a bug which uses an invalid comparison.
The bug resulted in the use of invalid loss intervals.

Signed-off-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Acked-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[CCID3]: Use MSS for larger initial windows
Gerrit Renker [Tue, 20 Mar 2007 17:28:44 +0000]
[CCID3]: Use MSS for larger initial windows

This improves the slow-start phase by using the MSS
(as suggested in RFC 4342, sec. 5) instead of the packet size s.
Also figured out that __u32 is ample resource enough.

After applying, I got the following in the logs:

  ccid3_hc_tx_packet_recv: client(f7421700), s=6, MSS=1424, w_init=4380, R_sample=176us, X=24886363

Had the previous variant been used, w_init would have been as low as 24.

Committer note: removed unneeded cast to unsigned long long that was
                causing a compiler warning on 64bit architectures.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[CCID3]: Re-order CCID 3 source file
Gerrit Renker [Tue, 20 Mar 2007 16:11:24 +0000]
[CCID3]: Re-order CCID 3 source file

No code change at all.
This splits ccid3.c into a RX and a TX section, so that the file has an
organisation similar to the other ones (e.g. packet_history.{h,c}).

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[CCID3]: Remove redundant `len' test
Gerrit Renker [Tue, 20 Mar 2007 16:10:15 +0000]
[CCID3]: Remove redundant `len' test

Since CCID3 avoids  sending 0-byte data packets (cf. ccid3_hc_tx_send_packet),
testing for zero-payload length, as performed by ccid3_hc_tx_update_s, is
redundant - hence removed by this patch.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[DCCP]: Remove ambiguity in the way before48 is used
Gerrit Renker [Tue, 20 Mar 2007 16:08:19 +0000]
[DCCP]: Remove ambiguity in the way before48 is used

This removes two ambiguities in employing the new definition of before48,
following the analysis on http://www.mail-archive.com/dccp@vger.kernel.org/msg01295.html

 (1) Updating GSR when P.seqno >= S.SWL
     With the old definition we did not update when P.seqno and S.SWL are 2^47 apart. To
     ensure the same behaviour as with the old definition, this is replaced with the
     equivalent condition dccp_delta_seqno(S.SWL, P.seqno) >= 0

 (2) Sending SYNC when P.seqno >= S.OSR
     Here it is debatable whether the new definition causes an ambiguity: the case is
     similar to (1); and to have consistency with the case (1), we use the equivalent
     condition dccp_delta_seqno(S.OSR, P.seqno) >= 0

Detailed Justification

13 years ago[DCCP]: Fix for follows48
Gerrit Renker [Tue, 20 Mar 2007 16:03:47 +0000]
[DCCP]: Fix for follows48

The follows48 relation identifies whether 48-bit sequence number
x is the direct successor of y. Currently, it does not handle cases
of the following type correctly:

follows48(0x(prefix)10000LL, 0x(prefix)0FFFFLL)

where prefix is an arbitrary hex sequence of up to 7 digits.

This is fixed by reusing the new dccp_delta_seqno function.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[DCCP]: Make `before' relation unambiguous
Gerrit Renker [Tue, 20 Mar 2007 16:00:26 +0000]
[DCCP]: Make `before' relation unambiguous

Problem:

13 years ago[DCCP]: Make dccp_delta_seqno return signed numbers
Gerrit Renker [Tue, 20 Mar 2007 15:45:59 +0000]
[DCCP]: Make dccp_delta_seqno return signed numbers

Problem:

13 years ago[DCCP]: 48-bit sequence number arithmetic
Gerrit Renker [Tue, 20 Mar 2007 15:26:51 +0000]
[DCCP]: 48-bit sequence number arithmetic

This patch
 * organizes the sequence arithmetic functions into one corner of dccp.h
 * performs a small modification of dccp_set_seqno to make it more widely reusable
   (now it is safe to use any number, since it performs modulo-2^48 assignment)
 * adds functions and generic macros for 48-bit sequence arithmetic:
  --48 bit complement
  --modulo-48 addition and modulo-48 subtraction
--dccp_inc_seqno now a special case of add48
Constants renamed following a suggestion by Arnaldo.

Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
Acked-by: Ian McDonald <ian.mcdonald@jandi.co.nz>
Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[FORCEDETH]: Use skb_tailroom where appropriate
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 15:08:20 +0000]
[FORCEDETH]: Use skb_tailroom where appropriate

Reducing the number of skb->data direct accesses.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[LMC]: lmc_main wants to use skb_tailroom
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 15:00:44 +0000]
[LMC]: lmc_main wants to use skb_tailroom

At that point it is equivalent to what was being used, skb->end - skb->data,
and the need is clearly the one skb_tailroom satisfies.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[ATM] idt77252: Fix double kfree_skb on failure in push_rx_skb
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 14:52:34 +0000]
[ATM] idt77252: Fix double kfree_skb on failure in push_rx_skb

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

13 years ago[SK_BUFF] ipv6: Use skb_network_offset in some more places
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 01:29:03 +0000]
[SK_BUFF] ipv6: Use skb_network_offset in some more places

So that we reduce the number of direct accesses to skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

13 years ago[NETLINK]: Use nlmsg_trim() where appropriate
Arnaldo Carvalho de Melo [Mon, 26 Mar 2007 06:06:12 +0000]
[NETLINK]: Use nlmsg_trim() where appropriate

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETLINK]: Remove NLMSG_{NEW_ANSWER,CANCEL,END}
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 01:28:08 +0000]
[NETLINK]: Remove NLMSG_{NEW_ANSWER,CANCEL,END}

Not used anywhere and defined inside __KERNEL__, Thomas acked this on irc.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

13 years ago[SK_BUFF]: Remove skb_add_mtu() leftovers
Arnaldo Carvalho de Melo [Tue, 20 Mar 2007 01:27:36 +0000]
[SK_BUFF]: Remove skb_add_mtu() leftovers

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>

13 years ago[NETLINK]: Introduce nlmsg_hdr() helper
Arnaldo Carvalho de Melo [Thu, 26 Apr 2007 02:08:35 +0000]
[NETLINK]: Introduce nlmsg_hdr() helper

For the common "(struct nlmsghdr *)skb->data" sequence, so that we reduce the
number of direct accesses to skb->data and for consistency with all the other
cast skb member helpers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IPV4]: fib_trie root node settings
Robert Olsson [Mon, 19 Mar 2007 23:29:58 +0000]
[IPV4]: fib_trie root node settings

The threshold for root node can be more aggressive set to get
better tree compression. The new setting mekes the root grow
from 16 to 19 bits and substansial improvemnt in Aver depth
this with the current table of 214393 prefixes

But really the dynamic resize should need more investigation
both in terms convergence and performance and maybe it should
be possible to change...

Maybe just for the brave to start with or we may have to back
this out.

13 years ago[IPV4]: fib_trie resize break
Robert Olsson [Mon, 19 Mar 2007 23:27:37 +0000]
[IPV4]: fib_trie resize break

The patch below adds break condition for the resize operations. If
we don't achieve the desired fill factor a warning is printed. Trie
should still be operational but new thresholds should be considered.

Signed-off-by: Robert Olsson <robert.olsson@its.uu.se>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Adjust the zeroing up to tail in __alloc_skb too
Arnaldo Carvalho de Melo [Mon, 19 Mar 2007 13:48:59 +0000]
[SK_BUFF]: Adjust the zeroing up to tail in __alloc_skb too

I did it just in alloc_skb_from_cache, forgot __alloc_skb, fixed now.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Convert skb->end to sk_buff_data_t
Arnaldo Carvalho de Melo [Fri, 20 Apr 2007 03:43:29 +0000]
[SK_BUFF]: Convert skb->end to sk_buff_data_t

Now to convert the last one, skb->data, that will allow many simplifications
and removal of some of the offset helpers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Convert skb->tail to sk_buff_data_t
Arnaldo Carvalho de Melo [Fri, 20 Apr 2007 03:29:13 +0000]
[SK_BUFF]: Convert skb->tail to sk_buff_data_t

So that it is also an offset from skb->head, reduces its size from 8 to 4 bytes
on 64bit architectures, allowing us to combine the 4 bytes hole left by the
layer headers conversion, reducing struct sk_buff size to 256 bytes, i.e. 4
64byte cachelines, and since the sk_buff slab cache is SLAB_HWCACHE_ALIGN...
:-)

Many calculations that previously required that skb->{transport,network,
mac}_header be first converted to a pointer now can be done directly, being
meaningful as offsets or pointers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[VLAN] vlan_dev: Use skb_reset_network_header().
David S. Miller [Fri, 20 Apr 2007 03:34:51 +0000]
[VLAN] vlan_dev: Use skb_reset_network_header().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IrDA]: SMC SuperIO Chip LPC47N227 not identified properly
Peter Kovar [Sat, 17 Mar 2007 03:39:25 +0000]
[IrDA]: SMC SuperIO Chip LPC47N227 not identified properly

SMC SuperIO Chip LPC47N227 used for IrDA is not detected because its device
identification byte can be 0x7A instead of 0x5A.

Patch from Peter Kovar <peter.kovar@gmail.com>
Cc: Jean Delvare <khali@linux-fr.org>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IrDA]: irda lockdep annotation
Samuel Ortiz [Sat, 17 Mar 2007 03:38:23 +0000]
[IrDA]: irda lockdep annotation

Rmmoding irda triggers a lockdep false positive.

Reported-by: Dave Jones <davej@redhat.com>
Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IrDA]: removing stir4200 useless include
Samuel Ortiz [Sat, 17 Mar 2007 03:35:25 +0000]
[IrDA]: removing stir4200 useless include

stir4200 doesn't need to include irlap.h

Signed-off-by: Samuel Ortiz <samuel@sortiz.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Use offsets for skb->{mac,network,transport}_header on 64bit architectures
Arnaldo Carvalho de Melo [Wed, 11 Apr 2007 04:22:35 +0000]
[SK_BUFF]: Use offsets for skb->{mac,network,transport}_header on 64bit architectures

With this we save 8 bytes per network packet, leaving a 4 bytes hole to be used
in further shrinking work, likely with the offsetization of other pointers,
such as ->{data,tail,end}, at the cost of adds, that were minimized by the
usual practice of setting skb->{mac,nh,n}.raw to a local variable that is then
accessed multiple times in each function, it also is not more expensive than
before with regards to most of the handling of such headers, like setting one
of these headers to another (transport to network, etc), or subtracting, adding
to/from it, comparing them, etc.

Now we have this layout for sk_buff on a x86_64 machine:

[acme@mica net-2.6.22]$ pahole vmlinux sk_buff
struct sk_buff {
struct sk_buff *       next;             /*   0   8 */
struct sk_buff *       prev;             /*   8   8 */
struct rb_node         rb;               /*  16  24 */
struct sock *          sk;               /*  40   8 */
ktime_t                tstamp;           /*  48   8 */
struct net_device *    dev;              /*  56   8 */
/* --- cacheline 1 boundary (64 bytes) --- */
struct net_device *    input_dev;        /*  64   8 */
sk_buff_data_t         transport_header; /*  72   4 */
sk_buff_data_t         network_header;   /*  76   4 */
sk_buff_data_t         mac_header;       /*  80   4 */

/* XXX 4 bytes hole, try to pack */

struct dst_entry *     dst;              /*  88   8 */
struct sec_path *      sp;               /*  96   8 */
char                   cb[48];           /* 104  48 */
/* cacheline 2 boundary (128 bytes) was 24 bytes ago*/
unsigned int           len;              /* 152   4 */
unsigned int           data_len;         /* 156   4 */
unsigned int           mac_len;          /* 160   4 */
union {
__wsum         csum;             /*       4 */
__u32          csum_offset;      /*       4 */
};                                       /* 164   4 */
__u32                  priority;         /* 168   4 */
__u8                   local_df:1;       /* 172   1 */
__u8                   cloned:1;         /* 172   1 */
__u8                   ip_summed:2;      /* 172   1 */
__u8                   nohdr:1;          /* 172   1 */
__u8                   nfctinfo:3;       /* 172   1 */
__u8                   pkt_type:3;       /* 173   1 */
__u8                   fclone:2;         /* 173   1 */
__u8                   ipvs_property:1;  /* 173   1 */

/* XXX 2 bits hole, try to pack */

__be16                 protocol;         /* 174   2 */
void    (*destructor)(struct sk_buff *); /* 176   8 */
struct nf_conntrack *  nfct;             /* 184   8 */
/* --- cacheline 3 boundary (192 bytes) --- */
struct sk_buff *       nfct_reasm;       /* 192   8 */
struct nf_bridge_info *nf_bridge;        /* 200   8 */
__u16                  tc_index;         /* 208   2 */
__u16                  tc_verd;          /* 210   2 */
dma_cookie_t           dma_cookie;       /* 212   4 */
__u32                  secmark;          /* 216   4 */
__u32                  mark;             /* 220   4 */
unsigned int           truesize;         /* 224   4 */
atomic_t               users;            /* 228   4 */
unsigned char *        head;             /* 232   8 */
unsigned char *        data;             /* 240   8 */
unsigned char *        tail;             /* 248   8 */
/* --- cacheline 4 boundary (256 bytes) --- */
unsigned char *        end;              /* 256   8 */
}; /* size: 264, cachelines: 5 */
   /* sum members: 260, holes: 1, sum holes: 4 */
   /* bit holes: 1, sum bit holes: 2 bits */
   /* last cacheline: 8 bytes */

On 32 bits nothing changes, and pointers continue to be used with the compiler
turning all this abstraction layer into dust. But there are some sk_buff
validation tricks that are now possible, humm... :-)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: unions of just one member don't get anything done, kill them
Arnaldo Carvalho de Melo [Wed, 11 Apr 2007 04:21:55 +0000]
[SK_BUFF]: unions of just one member don't get anything done, kill them

Renaming skb->h to skb->transport_header, skb->nh to skb->network_header and
skb->mac to skb->mac_header, to match the names of the associated helpers
(skb[_[re]set]_{transport,network,mac}_header).

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_network_header_len
Arnaldo Carvalho de Melo [Fri, 16 Mar 2007 20:26:39 +0000]
[SK_BUFF]: Introduce skb_network_header_len

For the common sequence "skb->h.raw - skb->nh.raw", similar to skb->mac_len,
that is precalculated tho, don't think we need to bloat skb with one more
member, so just use this new helper, reducing the number of non-skbuff.h
references to the layer headers even more.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Use the helpers to get the layer header pointer
Arnaldo Carvalho de Melo [Fri, 16 Mar 2007 20:19:57 +0000]
[SK_BUFF]: Use the helpers to get the layer header pointer

Some more cases...

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: Fix warning
Patrick McHardy [Fri, 16 Mar 2007 19:34:52 +0000]
[NET_SCHED]: Fix warning

net/sched/sch_api.c: In function 'psched_show':
net/sched/sch_api.c:1219: warning: format '%08x' expects type 'unsigned int', but argument 6 has type 's64'

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_cbq: fix watchdog scheduled too late
Patrick McHardy [Fri, 16 Mar 2007 19:31:28 +0000]
[NET_SCHED]: sch_cbq: fix watchdog scheduled too late

q->now is increased during dequeue and doesn't contain the current time
afterwards, resulting in a too large timeout value for the qdisc watchdog.
Use "now" instead, which still contains the current time.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: Export real timer resolution in /proc/net/psched
Patrick McHardy [Fri, 16 Mar 2007 08:23:28 +0000]
[NET_SCHED]: Export real timer resolution in /proc/net/psched

The timer resolution exported in /proc/net/psched is used by userspace to
calculate HTB's burst values. Currently it is set to HZ, since we're now
using hrtimers, use KTIME_MONOTONIC_RES, which makes HTB use smaller burst
values.

This patch also affects libnl, which incorrectly uses this value for
the SFQ perturbation parameter, which is always in seconds, and some
routing cache values, which are in USER_HZ, so both cases are broken
anyway.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: kill jiffie conversion macros
Patrick McHardy [Fri, 16 Mar 2007 08:23:02 +0000]
[NET_SCHED]: kill jiffie conversion macros

Now that all packet schedulers have been converted to hrtimers most users
of PSCHED_JIFFIE2US and PSCHED_US2JIFFIE are gone. The remaining users use
it to convert external time units to packet scheduler clock ticks, so use
PSCHED_TICKS_PER_SEC instead.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_htb: use hrtimer based watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:22:39 +0000]
[NET_SCHED]: sch_htb: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_cbq: use hrtimer for delay_timer
Patrick McHardy [Fri, 16 Mar 2007 08:22:20 +0000]
[NET_SCHED]: sch_cbq: use hrtimer for delay_timer

Switch delay_timer to hrtimer.

The class penalty parameter is changed to use psched ticks as units.
Since iproute never supported using this and the only existing user
(libnl) incorrectly assumes psched ticks as units anyway, this
shouldn't break anything.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_cbq: fix cbq_undelay_prio for non-active priorites
Patrick McHardy [Fri, 16 Mar 2007 08:21:40 +0000]
[NET_SCHED]: sch_cbq: fix cbq_undelay_prio for non-active priorites

cbq_undelay_prio is supposed to return a time delta, but returns the
current time for non-active priorities, causing cbq_undelay to mark
the priority as active and schedule a timer for twice the current
time.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_cbq: use hrtimer based watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:21:11 +0000]
[NET_SCHED]: sch_cbq: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_netem: use hrtimer based watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:20:31 +0000]
[NET_SCHED]: sch_netem: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_tbf: use hrtimer based watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:20:07 +0000]
[NET_SCHED]: sch_tbf: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: sch_hfsc: use hrtimer based watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:19:33 +0000]
[NET_SCHED]: sch_hfsc: use hrtimer based watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: Add hrtimer based qdisc watchdog
Patrick McHardy [Fri, 16 Mar 2007 08:19:15 +0000]
[NET_SCHED]: Add hrtimer based qdisc watchdog

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET_SCHED]: Use ktime as clocksource
Patrick McHardy [Fri, 16 Mar 2007 08:18:42 +0000]
[NET_SCHED]: Use ktime as clocksource

Get rid of the manual clock source selection mess and use ktime. Also
use a scalar representation, which allows to clean up pkt_sched.h a bit
more and results in less ktime_to_ns() calls in most cases.

The PSCHED_US2JIFFIE/PSCHED_JIFFIE2US macros are implemented quite
inefficient by this patch, following patches will convert all qdiscs
to hrtimers and get rid of them entirely.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Some more layer header conversions
Arnaldo Carvalho de Melo [Fri, 16 Mar 2007 00:42:27 +0000]
[SK_BUFF]: Some more layer header conversions

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[KBUILD]: Unifdef headers changed by the skb layer header refactorings
Arnaldo Carvalho de Melo [Fri, 16 Mar 2007 00:08:55 +0000]
[KBUILD]: Unifdef headers changed by the skb layer header refactorings

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: More skb_put related skb_reset_transport_header
Arnaldo Carvalho de Melo [Thu, 15 Mar 2007 00:05:37 +0000]
[SK_BUFF]: More skb_put related skb_reset_transport_header

This time we have to set it to skb->tail that is not anymore equal to
skb->data, so we either add a new helper or just add the skb->tail - skb->data
offset, for now do the later.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IPV6]: Reset the network header in ip6_nd_hdr
Arnaldo Carvalho de Melo [Thu, 15 Mar 2007 00:05:03 +0000]
[IPV6]: Reset the network header in ip6_nd_hdr

ip6_nd_hdr is always called immediately after a alloc_skb + skb_reserve
sequence, i.e. when skb->tail is equal to skb->data, making it correct to use
skb_reset_network_header().

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: More skb_put related conversions to skb_reset_transport_header
Arnaldo Carvalho de Melo [Thu, 15 Mar 2007 00:04:34 +0000]
[SK_BUFF]: More skb_put related conversions to skb_reset_transport_header

This is similar to the skb_reset_network_header(), i.e. at the point we reset
the transport header pointer/offset skb->tail is equal to skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: parse attributes with nfattr_parse in nfnetlink_check_attribute
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:45:39 +0000]
[NETFILTER]: nfnetlink: parse attributes with nfattr_parse in nfnetlink_check_attribute

Use nfattr_parse to parse attributes, this patch also modifies the default
behaviour since unknown attributes will be ignored instead of returning
EINVAL. This ensure backward compatibility: new libraries with new
attributes and old kernels can work.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: ctnetlink: add support for internal tcp connection tracking flags handling
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:45:19 +0000]
[NETFILTER]: ctnetlink: add support for internal tcp connection tracking flags handling

This patch let userspace programs set the IP_CT_TCP_BE_LIBERAL flag to
force the pickup of established connections.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: TCP conntrack: factorize out the PUSH flag
Willy Tarreau [Wed, 14 Mar 2007 23:44:53 +0000]
[NETFILTER]: TCP conntrack: factorize out the PUSH flag

The PUSH flag is accepted with every other valid combination.
Let's get it out of the tcp_valid_flags table and reduce the
number of combinations we have to handle. This does not
significantly reduce the table size however (8 bytes).

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: TCP conntrack: accept RST|PSH as valid
Willy Tarreau [Wed, 14 Mar 2007 23:44:31 +0000]
[NETFILTER]: TCP conntrack: accept RST|PSH as valid

This combination has been encountered on an IBM AS/400 in response
to packets sent to a closed session. There is no particular reason
to mark it invalid.

Signed-off-by: Willy Tarreau <w@1wt.eu>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: add nf_copy() to safely copy members in skb
Yasuyuki Kozakai [Wed, 14 Mar 2007 23:44:01 +0000]
[NETFILTER]: nf_conntrack: add nf_copy() to safely copy members in skb

This unifies the codes to copy netfilter related datas. Before copying,
nf_copy() puts original members in destination skb.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: add __nf_copy() to copy members in skb
Yasuyuki Kozakai [Wed, 14 Mar 2007 23:43:37 +0000]
[NETFILTER]: nf_conntrack: add __nf_copy() to copy members in skb

This unifies the codes to copy netfilter related datas. Note that
__nf_copy() assumes destination skb doesn't have any netfilter
related members.

Signed-off-by: Yasuyuki Kozakai <yasuyuki.kozakai@toshiba.co.jp>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: use jhash2 in __hash_conntrack
Sami Farin [Wed, 14 Mar 2007 23:43:00 +0000]
[NETFILTER]: nf_conntrack: use jhash2 in __hash_conntrack

Now it uses jhash, but using jhash2 would be around 3-4 times faster
(on P4).

Signed-off-by: Sami Farin <safari-netfilter@safari.iki.fi>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[JHASH]: Use const in jhash2
Patrick McHardy [Wed, 14 Mar 2007 23:42:29 +0000]
[JHASH]: Use const in jhash2

Use const to avoid forcing users to cast const data.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: move EXPORT_SYMBOL declarations next to the exported symbol
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:42:11 +0000]
[NETFILTER]: nfnetlink: move EXPORT_SYMBOL declarations next to the exported symbol

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: remove unused includes in nfnetlink.c
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:41:47 +0000]
[NETFILTER]: nfnetlink: remove unused includes in nfnetlink.c

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: remove unrequired check in nfnetlink_get_subsys
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:41:28 +0000]
[NETFILTER]: nfnetlink: remove unrequired check in nfnetlink_get_subsys

subsys_table is initialized to NULL, therefore just returns NULL in case
that it is not set.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: remove duplicate checks in nfnetlink_check_attributes
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:41:03 +0000]
[NETFILTER]: nfnetlink: remove duplicate checks in nfnetlink_check_attributes

Remove nfnetlink_check_attributes duplicates message size and callback
id checks. nfnetlink_find_client and nfnetlink_rcv_msg already do
such checks.

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: remove early debugging messages from nfnetlink
Pablo Neira Ayuso [Wed, 14 Mar 2007 23:40:38 +0000]
[NETFILTER]: nfnetlink: remove early debugging messages from nfnetlink

Signed-off-by: Pablo Neira Ayuso <pablo@netfilter.org>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: uninline notifier registration functions
Patrick McHardy [Wed, 14 Mar 2007 23:40:10 +0000]
[NETFILTER]: nf_conntrack: uninline notifier registration functions

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: use netlink_run_queue()
Patrick McHardy [Wed, 14 Mar 2007 23:39:45 +0000]
[NETFILTER]: nfnetlink: use netlink_run_queue()

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nfnetlink: use mutex instead of semaphore
Patrick McHardy [Wed, 14 Mar 2007 23:39:25 +0000]
[NETFILTER]: nfnetlink: use mutex instead of semaphore

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: simplify l4 protocol array allocation
Patrick McHardy [Wed, 14 Mar 2007 23:39:07 +0000]
[NETFILTER]: nf_conntrack: simplify l4 protocol array allocation

The retrying after an allocation failure is not necessary anymore
since we're holding the mutex the entire time, for the same
reason the double allocation race can't happen anymore.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: simplify protocol locking
Patrick McHardy [Wed, 14 Mar 2007 23:38:48 +0000]
[NETFILTER]: nf_conntrack: simplify protocol locking

Now that we don't use nf_conntrack_lock anymore but a single mutex for
all protocol handling, no need to release and grab it again for sysctl
registration.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: remove ugly hack in l4proto registration
Patrick McHardy [Wed, 14 Mar 2007 23:38:25 +0000]
[NETFILTER]: nf_conntrack: remove ugly hack in l4proto registration

Remove ugly special-casing of nf_conntrack_l4proto_generic, all it
wants is its sysctl tables registered, so do that explicitly in an
init function and move the remaining protocol initialization and
cleanup code to nf_conntrack_proto.c as well.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: nf_conntrack: switch protocol registration/unregistration to mutex
Patrick McHardy [Wed, 14 Mar 2007 23:37:52 +0000]
[NETFILTER]: nf_conntrack: switch protocol registration/unregistration to mutex

The protocol lookups done by nf_conntrack are already protected by RCU,
there is no need to keep taking nf_conntrack_lock for registration
and unregistration. Switch to a mutex.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: Remove IPv4 only connection tracking/NAT
Patrick McHardy [Wed, 14 Mar 2007 23:37:25 +0000]
[NETFILTER]: Remove IPv4 only connection tracking/NAT

Remove the obsolete IPv4 only connection tracking/NAT as scheduled in
feature-removal-schedule.

Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NETFILTER]: x_tables: remove duplicate of xt_prefix
Tobias Klauser [Wed, 14 Mar 2007 23:36:16 +0000]
[NETFILTER]: x_tables: remove duplicate of xt_prefix

Remove xt_proto_prefix array which duplicates xt_prefix and change all
users of xt_proto_prefix to xt_prefix.

Signed-off-by: Tobias Klauser <tklauser@distanz.ch>
Signed-off-by: Patrick McHardy <kaber@trash.net>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IPV4] xfrm4_mode_beet: Use skb_transport_header().
David S. Miller [Fri, 20 Apr 2007 02:55:44 +0000]
[IPV4] xfrm4_mode_beet: Use skb_transport_header().

Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_transport_header(skb)
Arnaldo Carvalho de Melo [Thu, 26 Apr 2007 01:04:18 +0000]
[SK_BUFF]: Introduce skb_transport_header(skb)

For the places where we need a pointer to the transport header, it is
still legal to touch skb->h.raw directly if just adding to,
subtracting from or setting it to another layer header.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SCTP]: Eliminate some pointer attributions to the skb layer headers
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 20:17:10 +0000]
[SCTP]: Eliminate some pointer attributions to the skb layer headers

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: More skb_reset_transport_header conversions
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 20:10:43 +0000]
[SK_BUFF]: More skb_reset_transport_header conversions

These are a bit more subtle, they are of this type:

-       skb->h.raw = payload;
        __skb_pull(skb, payload - skb->data);
+       skb_reset_transport_header(skb);

__skb_pull results in:

skb->data = skb->data + payload - skb->data;
skb->data = payload;

So after __skb_pull we have skb->data pointing to payload and we can
just call skb_reset_transport_header(skb), that will do:

skb->h.raw = payload;

The others are similar, allowing us to get rid of some more cases where a
pointer was being attributed to the layer headers.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce ipipv6_hdr(), remove skb->h.ipv6h
Arnaldo Carvalho de Melo [Wed, 11 Apr 2007 04:06:25 +0000]
[SK_BUFF]: Introduce ipipv6_hdr(), remove skb->h.ipv6h

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce ipip_hdr(), remove skb->h.ipiph
Arnaldo Carvalho de Melo [Thu, 26 Apr 2007 01:02:22 +0000]
[SK_BUFF]: Introduce ipip_hdr(), remove skb->h.ipiph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th
Arnaldo Carvalho de Melo [Wed, 11 Apr 2007 04:04:22 +0000]
[SK_BUFF]: Introduce tcp_hdr(), remove skb->h.th

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[TCP]: Introduce tcp_hdrlen() and tcp_optlen()
Arnaldo Carvalho de Melo [Mon, 19 Mar 2007 00:43:48 +0000]
[TCP]: Introduce tcp_hdrlen() and tcp_optlen()

The ip_hdrlen() buddy, created to reduce the number of skb->h.th-> uses and to
avoid the longer, open coded equivalent.

Ditched a no-op in bnx2 in the process.

I wonder if we should have a BUG_ON(skb->h.th->doff < 5) in tcp_optlen()...

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce icmp_hdr(), remove skb->h.icmph
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 17:43:18 +0000]
[SK_BUFF]: Introduce icmp_hdr(), remove skb->h.icmph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce udp_hdr(), remove skb->h.uh
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 17:28:48 +0000]
[SK_BUFF]: Introduce udp_hdr(), remove skb->h.uh

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce igmp_hdr() & friends, remove skb->h.igmph
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 17:19:23 +0000]
[SK_BUFF]: Introduce igmp_hdr() & friends, remove skb->h.igmph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[ICMP6]: Introduce icmp6_hdr()
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 17:03:22 +0000]
[ICMP6]: Introduce icmp6_hdr()

For consistency with all the other skb->h.raw accessors.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SCTP]: Introduce sctp_hdr()
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 16:59:32 +0000]
[SCTP]: Introduce sctp_hdr()

For consistency with all the other skb->h.raw accessors.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_set_transport_header
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 16:51:52 +0000]
[SK_BUFF]: Introduce skb_set_transport_header

For the cases where the transport header is being set to a offset from
skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_transport_offset()
Arnaldo Carvalho de Melo [Thu, 26 Apr 2007 00:55:53 +0000]
[SK_BUFF]: Introduce skb_transport_offset()

For the quite common 'skb->h.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_reset_transport_header(skb)
Arnaldo Carvalho de Melo [Tue, 13 Mar 2007 16:06:52 +0000]
[SK_BUFF]: Introduce skb_reset_transport_header(skb)

For the common, open coded 'skb->h.raw = skb->data' operation, so that we can
later turn skb->h.raw into a offset, reducing the size of struct sk_buff in
64bit land while possibly keeping it as a pointer on 32bit.

This one touches just the most simple cases:

skb->h.raw = skb->data;
skb->h.raw = {skb_push|[__]skb_pull}()

The next ones will handle the slightly more "complex" cases.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h
Arnaldo Carvalho de Melo [Thu, 26 Apr 2007 00:54:47 +0000]
[SK_BUFF]: Introduce ipv6_hdr(), remove skb->nh.ipv6h

Now the skb->nh union has just one member, .raw, i.e. it is just like the
skb->mac union, strange, no? I'm just leaving it like that till the transport
layer is done with, when we'll rename skb->mac.raw to skb->mac_header (or
->mac_header_offset?), ditto for ->{h,nh}.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce arp_hdr(), remove skb->nh.arph
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 23:56:31 +0000]
[SK_BUFF]: Introduce arp_hdr(), remove skb->nh.arph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[BRIDGE]: faster compare for link local addresses
Stephen Hemminger [Mon, 12 Mar 2007 23:25:32 +0000]
[BRIDGE]: faster compare for link local addresses

Use logic operations rather than memcmp() to compare destination
address with link local multicast addresses.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph
Arnaldo Carvalho de Melo [Sat, 21 Apr 2007 05:47:35 +0000]
[SK_BUFF]: Introduce ip_hdr(), remove skb->nh.iph

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IPMR]: Fix bug introduced when converting to skb_network_reset_header
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 23:09:36 +0000]
[IPMR]: Fix bug introduced when converting to skb_network_reset_header

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[IP]: Introduce ip_hdrlen()
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 23:09:15 +0000]
[IP]: Introduce ip_hdrlen()

For the common sequence "skb->nh.iph->ihl * 4", removing a good number of open
coded skb->nh.iph uses, now to go after the rest...

Just out of curiosity, here are the idioms found to get the same result:

skb->nh.iph->ihl << 2
skb->nh.iph->ihl<<2
skb->nh.iph->ihl * 4
skb->nh.iph->ihl*4
(skb->nh.iph)->ihl * sizeof(u32)

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF] ipmr: Missed one conversion to skb_network_header()
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 23:05:39 +0000]
[SK_BUFF] ipmr: Missed one conversion to skb_network_header()

We can't access skb->nh.raw directly anymore, it will become an offset.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET]: show bound packet types
Stephen Hemminger [Mon, 12 Mar 2007 21:35:37 +0000]
[NET]: show bound packet types

Show what protocols are bound to what packet types in /proc/net/ptype
Uses kallsyms to decode function pointers if possible.
Example:
Type Device      Function
ALL  eth1     packet_rcv_spkt+0x0
0800          ip_rcv+0x0
0806          arp_rcv+0x0
86dd          :ipv6:ipv6_rcv+0x0

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET]: make seq_operations const
Stephen Hemminger [Mon, 12 Mar 2007 21:34:29 +0000]
[NET]: make seq_operations const

The seq_file operations stuff can be marked constant to
get it out of dirty cache.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[NET]: network dev read_mostly
Stephen Hemminger [Mon, 12 Mar 2007 21:33:50 +0000]
[NET]: network dev read_mostly

For Eric, mark packet type and network device watermarks
as read mostly.

Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_set_network_header
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 01:39:41 +0000]
[SK_BUFF]: Introduce skb_set_network_header

For the cases where the network header is being set to a offset from skb->data.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF] ipmr: Another skb_push related conversion to skb_reset_network_header
Arnaldo Carvalho de Melo [Mon, 12 Mar 2007 01:38:29 +0000]
[SK_BUFF] ipmr: Another skb_push related conversion to skb_reset_network_header

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_network_header()
Arnaldo Carvalho de Melo [Wed, 11 Apr 2007 03:50:43 +0000]
[SK_BUFF]: Introduce skb_network_header()

For the places where we need a pointer to the network header, it is still legal
to touch skb->nh.raw directly if just adding to, subtracting from or setting it
to another layer header.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>

13 years ago[SK_BUFF]: Introduce skb_network_offset()
Arnaldo Carvalho de Melo [Sun, 11 Mar 2007 01:16:10 +0000]
[SK_BUFF]: Introduce skb_network_offset()

For the quite common 'skb->nh.raw - skb->data' sequence.

Signed-off-by: Arnaldo Carvalho de Melo <acme@redhat.com>
Signed-off-by: David S. Miller <davem@davemloft.net>