- Oct 10, 2013
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Marek Lindner authored
Create DAT container to announce DAT capabilities (if enabled). Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de> Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com>
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Marek Lindner authored
Prior to this patch batman-adv read the advertised uplink bandwidth from userspace and compressed this information into a single byte called "gateway class". Now the download & upload bandwidth information is sent as-is. No userspace change is necessary since the sysfs API always allowed to specify a bandwidth. Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de> Signed-off-by:
Spyros Gasteratos <morfeas3000@gmail.com> Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com>
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Marek Lindner authored
The goal is to provide the infrastructure for sending, receiving and parsing information 'containers' while preserving backward compatibility. TVLV (based on the commonly known Type Length Value technique) was chosen as the format for those containers. Even if a node does not know the tvlv type of a certain container it can simply skip the current container and proceed with the next. Past experience has shown features evolve over time, so a 'version' field was added right from the start to allow differentiating between feature variants - hence the name: T(ype) V(ersion) L(ength) V(alue). This patch introduces the basic TVLV infrastructure: * register / unregister tvlv containers to be sent with each OGM (on primary interfaces only) * register / unregister callback handlers to be called upon finding the corresponding tvlv type in a tvlv buffer * unicast tvlv send / receive API calls Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de> Signed-off-by:
Spyros Gasteratos <morfeas3000@gmail.com> Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com>
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Antonio Quartulli authored
With this change batman-adv is breaking compatibility with older versions and it is moving to compat-version 15. Signed-off-by:
Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by:
Marek Lindner <lindner_marek@yahoo.de> Signed-off-by:
Martin Hundebøll <martin@hundeboll.net> Signed-off-by:
Antonio Quartulli <ordex@autistici.org>
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Antonio Quartulli authored
Update my and Marek Lindner's email in the MAINTAINERS file Signed-off-by:
Antonio Quartulli <antonio@meshcoding.com>
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Yuval Mintz authored
Each network interface (either PF or VF) is identified by its port's MAC id. Signed-off-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
Ariel Elior <ariele@broadcom.com> Signed-off-by:
Eilon Greenstein <eilong@broadcom.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
CONFIG_IPV6=n is still a valid choice ;) It appears we can remove dead code. Reported-by:
Wu Fengguang <fengguang.wu@intel.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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- Oct 09, 2013
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Eric Dumazet authored
At this point sk might contain garbage. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
TCP listener refactoring, part 4 : To speed up inet lookups, we moved IPv4 addresses from inet to struct sock_common Now is time to do the same for IPv6, because it permits us to have fast lookups for all kind of sockets, including upcoming SYN_RECV. Getting IPv6 addresses in TCP lookups currently requires two extra cache lines, plus a dereference (and memory stall). inet6_sk(sk) does the dereference of inet_sk(__sk)->pinet6 This patch is way bigger than its IPv4 counter part, because for IPv4, we could add aliases (inet_daddr, inet_rcv_saddr), while on IPv6, it's not doable easily. inet6_sk(sk)->daddr becomes sk->sk_v6_daddr inet6_sk(sk)->rcv_saddr becomes sk->sk_v6_rcv_saddr And timewait socket also have tw->tw_v6_daddr & tw->tw_v6_rcv_saddr at the same offset. We get rid of INET6_TW_MATCH() as INET6_MATCH() is now the generic macro. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
TCP listener refactoring, part 3 : Our goal is to hash SYN_RECV sockets into main ehash for fast lookup, and parallel SYN processing. Current inet_ehash_bucket contains two chains, one for ESTABLISH (and friend states) sockets, another for TIME_WAIT sockets only. As the hash table is sized to get at most one socket per bucket, it makes little sense to have separate twchain, as it makes the lookup slightly more complicated, and doubles hash table memory usage. If we make sure all socket types have the lookup keys at the same offsets, we can use a generic and faster lookup. It turns out TIME_WAIT and ESTABLISHED sockets already have common lookup fields for IPv4. [ INET_TW_MATCH() is no longer needed ] I'll provide a follow-up to factorize IPv6 lookup as well, to remove INET6_TW_MATCH() This way, SYN_RECV pseudo sockets will be supported the same. A new sock_gen_put() helper is added, doing either a sock_put() or inet_twsk_put() [ and will support SYN_RECV later ]. Note this helper should only be called in real slow path, when rcu lookup found a socket that was moved to another identity (freed/reused immediately), but could eventually be used in other contexts, like sock_edemux() Before patch : dmesg | grep "TCP established" TCP established hash table entries: 524288 (order: 11, 8388608 bytes) After patch : TCP established hash table entries: 524288 (order: 10, 4194304 bytes) Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/davem/netDavid S. Miller authored
Conflicts: include/linux/netdevice.h net/core/sock.c Trivial merge issues. Removal of "extern" for functions declaration in netdevice.h at the same time "const" was added to an argument. Two parallel line additions in net/core/sock.c Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfcDavid S. Miller authored
Ben Hutchings says: ==================== Some more fixes for EF10 support; hopefully the last lot: 1. Fixes for reading statistics, from Edward Cree and Jon Cooper. 2. Addition of ethtool statistics for packets dropped by the hardware before they were associated with a specific function, from Edward Cree. 3. Only bind to functions that are in control of their associated port, as the driver currently assumes this is the case. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
Steinar reported FQ pacing was not working for UDP flows. It looks like the initial sk->sk_pacing_rate value of 0 was a wrong choice. We should init it to ~0U (unlimited) Then, TCA_FQ_FLOW_DEFAULT_RATE should be removed because it makes no real sense. The default rate is really unlimited, and we need to avoid a zero divide. Reported-by:
Steinar H. Gunderson <sesse@google.com> Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
This reverts commit 612c3373 . As per Stephen Hemminger, the layout of the netlink attribute is not implemented correctly so revert this for now. Signed-off-by:
David S. Miller <davem@davemloft.net>
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Wei Yongjun authored
Add the missing destroy_workqueue() before return from qlcnic_probe() in the error handling case. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Wei Yongjun authored
This patch fix the error handling in moxart_mac_probe(): - return -ENOMEM in some memory alloc fail cases - add missing free_netdev() in the error handling case Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Marc Kleine-Budde authored
This patch fixes the calculation of the nlmsg size, by adding the missing nla_total_size(). Cc: Patrick McHardy <kaber@trash.net> Signed-off-by:
Marc Kleine-Budde <mkl@pengutronix.de> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
TCA_FQ_INITIAL_QUANTUM should set q->initial_quantum Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Oussama Ghorbel authored
Unlike ipv4, the struct member hlen holds the length of the GRE and ipv6 headers. This length is also counted in dev->hard_header_len. Perhaps, it's more clean to modify the hlen to count only the GRE header without ipv6 header as the variable name suggest, but the simple way to fix this without regression risk is simply modify the calculation of the limit in ip6gre_tunnel_change_mtu function. Verified in kernel version v3.11. Signed-off-by:
Oussama Ghorbel <ou.ghorbel@gmail.com> Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Gao feng authored
We can get classid through cgroup_subsys_state, this is directviewing and effective. Signed-off-by:
Gao feng <gaofeng@cn.fujitsu.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Gao feng authored
Since the tasks have been migrated to the cgroup, there is no need to call task_netprioidx to get task's cgroup id. Signed-off-by:
Gao feng <gaofeng@cn.fujitsu.com> Acked-by:
Neil Horman <nhorman@tuxdriver.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Shawn Bohrer authored
The since the removal of the routing cache computing fib_compute_spec_dst() does a fib_table lookup for each UDP multicast packet received. This has introduced a performance regression for some UDP workloads. This change skips populating the packet info for sockets that do not have IP_PKTINFO set. Benchmark results from a netperf UDP_RR test: Before 89789.68 transactions/s After 90587.62 transactions/s Benchmark results from a fio 1 byte UDP multicast pingpong test (Multicast one way unicast response): Before 12.63us RTT After 12.48us RTT Signed-off-by:
Shawn Bohrer <sbohrer@rgmadvisors.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Shawn Bohrer authored
The removal of the routing cache introduced a performance regression for some UDP workloads since a dst lookup must be done for each packet. This change caches the dst per socket in a similar manner to what we do for TCP by implementing early_demux. For UDP multicast we can only cache the dst if there is only one receiving socket on the host. Since caching only works when there is one receiving socket we do the multicast socket lookup using RCU. For UDP unicast we only demux sockets with an exact match in order to not break forwarding setups. Additionally since the hash chains may be long we only check the first socket to see if it is a match and not waste extra time searching the whole chain when we might not find an exact match. Benchmark results from a netperf UDP_RR test: Before 87961.22 transactions/s After 89789.68 transactions/s Benchmark results from a fio 1 byte UDP multicast pingpong test (Multicast one way unicast response): Before 12.97us RTT After 12.63us RTT Signed-off-by:
Shawn Bohrer <sbohrer@rgmadvisors.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Shawn Bohrer authored
UDP sockets can receive packets from multiple endpoints and thus may be received on multiple receive queues. Since packets packets can arrive on multiple receive queues we should not mark the napi_id for all packets. This makes busy read/poll only work for connected UDP sockets. This additionally enables busy read/poll for UDP multicast packets as long as the socket is connected by moving the check into __udp_queue_rcv_skb(). Signed-off-by:
Shawn Bohrer <sbohrer@rgmadvisors.com> Suggested-by:
Eric Dumazet <edumazet@google.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
qdisc_tree_decrease_qlen() is called when some packets are dropped on a qdisc, and we want to notify parents of qlen changes. We also can increment parents qdisc qstats drop counters. This permits more accurate drop counters up to root qdisc. For example a graft operation typically resets a qdisc (drops all packets) and call qdisc_tree_decrease_qlen() Note that callers are responsible for their drop counters. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David Vrabel authored
If a guest is destroyed without transitioning its frontend to CLOSED, the domain becomes a zombie as netback was not grant unmapping the shared rings. When removing a VIF, transition the backend to CLOSED so the VIF is disconnected if necessary (which will unmap the shared rings etc). This fixes a regression introduced by 279f438e (xen-netback: Don't destroy the netdev until the vif is shut down). Signed-off-by:
David Vrabel <david.vrabel@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Cc: Paul Durrant <Paul.Durrant@citrix.com> Acked-by:
Wei Liu <wei.liu2@citrix.com> Reviewed-by:
Paul Durrant <paul.durrant@citrix.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Amir Vadai says: ==================== net/mlx4_en: Fix pages never dma unmapped on rx This patchset fixes a bug introduced by commit 51151a16 (mlx4: allow order-0 memory allocations in RX path). Where dma_unmap_page wasn't called. Changes from V0: - Added "Rename name of mlx4_en_rx_alloc members". Old names were confusing. - Last frag in page calculation was wrong. Since all frags in page are of the same size, need to add this frag_stride to end of frag offset, and not the size of next frag in skb. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Amir Vadai authored
This patch fixes a bug introduced by commit 51151a16 (mlx4: allow order-0 memory allocations in RX path). dma_unmap_page never reached because condition to detect last fragment in page is wrong. offset+frag_stride can't be greater than size, need to make sure no additional frag will fit in page => compare offset + frag_stride + next_frag_size instead. next_frag_size is the same as the current one, since page is shared only with frags of the same size. CC: Eric Dumazet <edumazet@google.com> Signed-off-by:
Amir Vadai <amirv@mellanox.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Amir Vadai authored
Add page prefix to page related members: @size and @offset into @page_size and @page_offset CC: Eric Dumazet <edumazet@google.com> Signed-off-by:
Amir Vadai <amirv@mellanox.com> Acked-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Veaceslav Falico authored
Currently, in TLB mode we change mac addresses only by memcpy-ing the to net_device->dev_addr, without actually setting them via dev_set_mac_address(). This permits us to receive all the traffic always on one mac address. However, in case the interface flips, some drivers might enforce the mac filtering for its FW/HW based on current ->dev_addr, and thus we won't be able to receive traffic on that interface, in case it will be selected as active in TLB mode. Fix it by setting the mac address forcefully on every new active slave that we select in TLB mode. CC: Jay Vosburgh <fubar@us.ibm.com> CC: Andy Gospodarek <andy@greyhouse.net> CC: Yuval Mintz <yuvalmin@broadcom.com> Reported-by:
Yuval Mintz <yuvalmin@broadcom.com> Tested-by:
Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by:
Veaceslav Falico <vfalico@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Nguyen Hong Ky authored
This patch will fix RX packets errors when receiving big size of data by set bit RNC = 1. RNC - Receive Enable Control 0: Upon completion of reception of one frame, the E-DMAC writes the receive status to the descriptor and clears the RR bit in EDRRR to 0. 1: Upon completion of reception of one frame, the E-DMAC writes (writes back) the receive status to the descriptor. In addition, the E-DMAC reads the next descriptor and prepares for reception of the next frame. In addition, for get more stable when receiving packets, I set maximum size for the transmit/receive FIFO and inserts padding in receive data. Signed-off-by:
Nguyen Hong Ky <nh-ky@jinso.co.jp> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
net/l2tp/l2tp_core.c: In function ‘l2tp_verify_udp_checksum’: net/l2tp/l2tp_core.c:499:22: warning: unused variable ‘tunnel’ [-Wunused-variable] Create a helper "l2tp_tunnel()" to facilitate this, and as a side effect get rid of a bunch of unnecessary void pointer casts. Signed-off-by:
David S. Miller <davem@davemloft.net>
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Michael S. Tsirkin authored
We play with a wait queue even if socket is non blocking. This is an obvious waste. Besides, it will prevent calling the non blocking variant when current is not valid. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Acked-by:
Jason Wang <jasowang@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Alan Ott says: ==================== Fix race conditions in mrf24j40 interrupts After testing with the betas of this patchset, it's been rebased and is ready for inclusion. David Hauweele noticed that the mrf24j40 would hang arbitrarily after some period of heavy traffic. Two race conditions were discovered, and the driver was changed to use threaded interrupts, since the enable/disable of interrupts in the driver has recently been a lighning rod whenever issues arise related to interrupts (costing engineering time), and since threaded interrupts are the right way to do it. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alan Ott authored
The mrf24j40 generates level interrupts. There are rare cases where it appears that the interrupt line never gets de-asserted between interrupts, causing interrupts to be lost, and causing a hung device from the driver's perspective. Switching the driver to interpret these interrupts as level-triggered fixes this issue. Signed-off-by:
Alan Ott <alan@signal11.us> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alan Ott authored
Eliminate all the workqueue and interrupt enable/disable. Signed-off-by:
Alan Ott <alan@signal11.us> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alan Ott authored
This avoids a race condition where complete(tx_complete) could be called before tx_complete is initialized. Signed-off-by:
Alan Ott <alan@signal11.us> Signed-off-by:
David S. Miller <davem@davemloft.net>
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David S. Miller authored
Alan Ott says: ==================== Alexander Aring suggested that devices desired to be linked to 6lowpan be checked for actually being of type IEEE802154, since IEEE802154 devices are all that are supported by 6lowpan at present. ==================== Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alan Ott authored
When a lowpan link to a wpan device is created, set the hardware address of the lowpan link to that of the wpan device. Signed-off-by:
Alan Ott <alan@signal11.us> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Alan Ott authored
Refuse to create 6lowpan links if the actual hardware interface is of any type other than ARPHRD_IEEE802154. Signed-off-by:
Alan Ott <alan@signal11.us> Suggested-by:
Alexander Aring <alex.aring@gmail.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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