- 28 4月, 2016 9 次提交
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由 Eric Dumazet 提交于
Rename IP_INC_STATS_BH() to __IP_INC_STATS(), to better express this is used in non preemptible context. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Rename SCTP_INC_STATS_BH() to __SCTP_INC_STATS() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Remove misleading _BH suffix. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Rename TCP_INC_STATS_BH() to __TCP_INC_STATS() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Rename UDP_INC_STATS_BH() to __UDP_INC_STATS(), and UDP6_INC_STATS_BH() to __UDP6_INC_STATS() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Rename ICMP_INC_STATS_BH() to __ICMP_INC_STATS() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
Rename DCCP_INC_STATS_BH() to __DCCP_INC_STATS() Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
In the old days (before linux-3.0), SNMP counters were duplicated, one for user context, and one for BH context. After commit 8f0ea0fe ("snmp: reduce percpu needs by 50%") we have a single copy, and what really matters is preemption being enabled or disabled, since we use this_cpu_inc() or __this_cpu_inc() respectively. We therefore kill SNMP_INC_STATS_USER(), SNMP_ADD_STATS_USER(), NET_INC_STATS_USER(), NET_ADD_STATS_USER(), SCTP_INC_STATS_USER(), SNMP_INC_STATS64_USER(), SNMP_ADD_STATS64_USER(), TCP_ADD_STATS_USER(), UDP_INC_STATS_USER(), UDP6_INC_STATS_USER(), and XFRM_INC_STATS_USER() Following patches will rename __BH helpers to make clear their usage is not tied to BH being disabled. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David Ahern 提交于
Similar to 3bfd8472 ("net: Use passed in table for nexthop lookups") for IPv4, if the route spec contains a table id use that to lookup the next hop first and fall back to a full lookup if it fails (per the fix 4c9bcd11 ("net: Fix nexthop lookups")). Example: root@kenny:~# ip -6 ro ls table red local 2100:1::1 dev lo proto none metric 0 pref medium 2100:1::/120 dev eth1 proto kernel metric 256 pref medium local 2100:2::1 dev lo proto none metric 0 pref medium 2100:2::/120 dev eth2 proto kernel metric 256 pref medium local fe80::e0:f9ff:fe09:3cac dev lo proto none metric 0 pref medium local fe80::e0:f9ff:fe1c:b974 dev lo proto none metric 0 pref medium fe80::/64 dev eth1 proto kernel metric 256 pref medium fe80::/64 dev eth2 proto kernel metric 256 pref medium ff00::/8 dev red metric 256 pref medium ff00::/8 dev eth1 metric 256 pref medium ff00::/8 dev eth2 metric 256 pref medium unreachable default dev lo metric 240 error -113 pref medium root@kenny:~# ip -6 ro add table red 2100:3::/64 via 2100:1::64 RTNETLINK answers: No route to host Route add fails even though 2100:1::64 is a reachable next hop: root@kenny:~# ping6 -I red 2100:1::64 ping6: Warning: source address might be selected on device other than red. PING 2100:1::64(2100:1::64) from 2100:1::1 red: 56 data bytes 64 bytes from 2100:1::64: icmp_seq=1 ttl=64 time=1.33 ms With this patch: root@kenny:~# ip -6 ro add table red 2100:3::/64 via 2100:1::64 root@kenny:~# ip -6 ro ls table red local 2100:1::1 dev lo proto none metric 0 pref medium 2100:1::/120 dev eth1 proto kernel metric 256 pref medium local 2100:2::1 dev lo proto none metric 0 pref medium 2100:2::/120 dev eth2 proto kernel metric 256 pref medium 2100:3::/64 via 2100:1::64 dev eth1 metric 1024 pref medium local fe80::e0:f9ff:fe09:3cac dev lo proto none metric 0 pref medium local fe80::e0:f9ff:fe1c:b974 dev lo proto none metric 0 pref medium fe80::/64 dev eth1 proto kernel metric 256 pref medium fe80::/64 dev eth2 proto kernel metric 256 pref medium ff00::/8 dev red metric 256 pref medium ff00::/8 dev eth1 metric 256 pref medium ff00::/8 dev eth2 metric 256 pref medium unreachable default dev lo metric 240 error -113 pref medium Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 27 4月, 2016 7 次提交
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由 Florian Westphal 提交于
No more users in the tree, remove NETDEV_TX_LOCKED support. Adds another hole in softnet_stats struct, but better than keeping the unused collision counter around. Signed-off-by: NFlorian Westphal <fw@strlen.de> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Xin Long 提交于
For sctp assoc, when rcvbuf_policy is set, it will has it's own rmem_alloc, when we dump asoc info in sctp_diag, we should use that value on RMEM_ALLOC as well, just like WMEM_ALLOC. Signed-off-by: NXin Long <lucien.xin@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
I also fix commit 8b32ab9e6ef1: use nla_total_size_64bit() for OVS_FLOW_ATTR_USED in ovs_flow_cmd_msg_size(). Fixes: 8b32ab9e6ef1 ("ovs: use nla_put_u64_64bit()") Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
I also fix the value of INET_DIAG_MAX. It's wrong since commit 8f840e47 which is only in net-next right now, thus I didn't make a separate patch. Fixes: 8f840e47 ("sctp: add the sctp_diag.c file") Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 26 4月, 2016 23 次提交
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由 David Ahern 提交于
It was a simple idea -- save IPv6 configured addresses on a link down so that IPv6 behaves similar to IPv4. As always the devil is in the details and the IPv6 stack as too many behavioral differences from IPv4 making the simple idea more complicated than it needs to be. The current implementation for keeping IPv6 addresses can panic or spit out a warning in one of many paths: 1. IPv6 route gets an IPv4 route as its 'next' which causes a panic in rt6_fill_node while handling a route dump request. 2. rt->dst.obsolete is set to DST_OBSOLETE_DEAD hitting the WARN_ON in fib6_del 3. Panic in fib6_purge_rt because rt6i_ref count is not 1. The root cause of all these is references related to the host route for an address that is retained. So, this patch deletes the host route every time the ifdown loop runs. Since the host route is deleted and will be re-generated an up there is no longer a need for the l3mdev fix up. On the 'admin up' side move addrconf_permanent_addr into the NETDEV_UP event handling so that it runs only once versus on UP and CHANGE events. All of the current panics and warnings appear to be related to addresses on the loopback device, but given the catastrophic nature when a bug is triggered this patch takes the conservative approach and evicts all host routes rather than trying to determine when it can be re-used and when it can not. That can be a later optimizaton if desired. Signed-off-by: NDavid Ahern <dsa@cumulusnetworks.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
This reverts commit 841645b5. Ok, this puts the feature back. I've decided to apply David A.'s bug fix and run with that rather than make everyone wait another whole release for this feature. Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
Support checksum neutral ILA as described in the ILA draft. The low order 16 bits of the identifier are used to contain the checksum adjustment value. The csum-mode parameter is added to described checksum processing. There are three values: - adjust transport checksum (previous behavior) - do checksum neutral mapping - do nothing On output the csum-mode in the ila_params is checked and acted on. If mode is checksum neutral mapping then to mapping and set C-bit. On input, C-bit is checked. If it is set checksum-netural mapping is done (regardless of csum-mode in ila params) and C-bit will be cleared. If it is not set then action in csum-mode is taken. Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
Change model of xlat to be used only for input where lookup is done on the locator part of an address (comparing to locator_match as key in rhashtable). This is needed for checksum neutral translation which obfuscates the low order 16 bits of the identifier. It also permits hosts to be in muliple ILA domains (each locator can map to a different SIR address). A check is also added to disallow translating non-ILA addresses (check of type in identifier). Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Tom Herbert 提交于
Add structures for identifiers, locators, and an ila address which is composed of a locator and identifier and in6_addr can be cast to it. This includes a three bit type field and enums for the types defined in ILA I-D. In ILA lwt don't allow user to set a translation for a non-ILA address (type of identifier is zero meaning it is an IID). This also requires that the destination prefix is at least 65 bytes (64 bit locator and first byte of identifier). Signed-off-by: NTom Herbert <tom@herbertland.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Glenn Ruben Bakke 提交于
The memcpy of ipv6 header destination address to the skb control block (sbk->cb) in header_create() results in currupted memory when bt_xmit() is issued. The skb->cb is "released" in the return of header_create() making room for lower layer to minipulate the skb->cb. The value retrieved in bt_xmit is not persistent across header creation and sending, and the lower layer will overwrite portions of skb->cb, making the copied destination address wrong. The memory corruption will lead to non-working multicast as the first 4 bytes of the copied destination address is replaced by a value that resolves into a non-multicast prefix. This fix removes the dependency on the skb control block between header creation and send, by moving the destination address memcpy to the send function path (setup_create, which is called from bt_xmit). Signed-off-by: NGlenn Ruben Bakke <glenn.ruben.bakke@nordicsemi.no> Acked-by: NJukka Rissanen <jukka.rissanen@linux.intel.com> Signed-off-by: NMarcel Holtmann <marcel@holtmann.org> Cc: stable@vger.kernel.org # 4.5+
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由 Sowmini Varadhan 提交于
rds-stress experiments with request size 256 bytes, 8K acks, using 16 threads show a 40% improvment when pskb_extract() replaces the {skb_clone(..); pskb_pull(..); pskb_trim(..);} pattern in the Rx path, so we leverage the perf gain with this commit. Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Sowmini Varadhan 提交于
A pattern of skb usage seen in modules such as RDS-TCP is to extract `to_copy' bytes from the received TCP segment, starting at some offset `off' into a new skb `clone'. This is done in the ->data_ready callback, where the clone skb is queued up for rx on the PF_RDS socket, while the parent TCP segment is returned unchanged back to the TCP engine. The existing code uses the sequence clone = skb_clone(..); pskb_pull(clone, off, ..); pskb_trim(clone, to_copy, ..); with the intention of discarding the first `off' bytes. However, skb_clone() + pskb_pull() implies pksb_expand_head(), which ends up doing a redundant memcpy of bytes that will then get discarded in __pskb_pull_tail(). To avoid this inefficiency, this commit adds pskb_extract() that creates the clone, and memcpy's only the relevant header/frag/frag_list to the start of `clone'. pskb_trim() is then invoked to trim clone down to the requested to_copy bytes. Signed-off-by: NSowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Michal Kazior 提交于
It was impossible to include codel.h for the purpose of having access to codel_params or codel_vars structure definitions and using them for embedding in other more complex structures. This splits allows codel.h itself to be treated like any other header file while codel_qdisc.h and codel_impl.h contain function definitions with logic that was previously in codel.h. This copies over copyrights and doesn't involve code changes other than adding a few additional include directives to net/sched/sch*codel.c. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Michal Kazior 提交于
This strips out qdisc specific bits from the code and makes it slightly more reusable. Codel will be used by wireless/mac80211 in the future. Signed-off-by: NMichal Kazior <michal.kazior@tieto.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
We should call consume_skb(skb) when skb is properly consumed, or kfree_skb(skb) when skb must be dropped in error case. Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Eric Dumazet 提交于
We now have proper per-listener but also per network namespace counters for SYN packets that might be dropped. We replace the kfree_skb() by consume_skb() to be drop monitor [1] friendly, and remove an obsolete comment. FastOpen SYN packets can carry payload in them just fine. [1] perf record -a -g -e skb:kfree_skb sleep 1; perf report Signed-off-by: NEric Dumazet <edumazet@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 David S. Miller 提交于
This reverts the following three commits: 70af921d 799977d9 f1705ec1 The feature was ill conceived, has terrible semantics, and has added nothing but regressions to the already fragile ipv6 stack. Fixes: f1705ec1 ("net: ipv6: Make address flushing on ifdown optional") Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Nicolas Dichtel 提交于
Signed-off-by: NNicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Craig Gallek 提交于
d894ba18 ("soreuseport: fix ordering for mixed v4/v6 sockets") was merged as a bug fix to the net tree. Two conflicting changes were committed to net-next before the above fix was merged back to net-next: ca065d0c ("udp: no longer use SLAB_DESTROY_BY_RCU") 3b24d854 ("tcp/dccp: do not touch listener sk_refcnt under synflood") These changes switched the datastructure used for TCP and UDP sockets from hlist_nulls to hlist. This patch applies the necessary parts of the net tree fix to net-next which were not automatic as part of the merge. Fixes: 1602f49b ("Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net") Signed-off-by: NCraig Gallek <kraig@google.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 25 4月, 2016 1 次提交
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由 Paolo Abeni 提交于
After commit fbd40ea0 ("ipv4: Don't do expensive useless work during inetdev destroy.") when deleting an interface, fib_del_ifaddr() can be executed without any primary address present on the dead interface. The above is safe, but triggers some "bug: prim == NULL" warnings. This commit avoids warning if the in_dev is dead Signed-off-by: NPaolo Abeni <pabeni@redhat.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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