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* ipv6: Normalize arguments to ip6_dst_blackhole().David S. Miller2011-03-01
| | | | | | | | | | Return a dst pointer which is potentitally error encoded. Don't pass original dst pointer by reference, pass a struct net instead of a socket, and elide the flow argument since it is unnecessary. Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Kill XFRM_LOOKUP_WAIT flag.David S. Miller2011-03-01
| | | | | | This can be determined from the flow flags instead. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Change final dst lookup arg name to "can_sleep"David S. Miller2011-03-01
| | | | | | | Since it indicates whether we are invoked from a sleepable context or not. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: Kill can_sleep arg to ip_route_output_flow()David S. Miller2011-03-01
| | | | | | This boolean state is now available in the flow flags. Signed-off-by: David S. Miller <davem@davemloft.net>
* net: Add FLOWI_FLAG_CAN_SLEEP.David S. Miller2011-03-01
| | | | | | And set is in contexts where the route resolution can sleep. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: Make final arg to ip_route_output_flow to be boolean "can_sleep"David S. Miller2011-03-01
| | | | | | Since that is what the current vague "flags" argument means. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv4: Can final ip_route_connect() arg to boolean "can_sleep".David S. Miller2011-03-01
| | | | | | Since that's what the current vague "flags" thing means. Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: Consolidate route lookup sequences.David S. Miller2011-03-01
| | | | | | | | | | | | | | | | | | | | | Route lookups follow a general pattern in the ipv6 code wherein we first find the non-IPSEC route, potentially override the flow destination address due to ipv6 options settings, and then finally make an IPSEC search using either xfrm_lookup() or __xfrm_lookup(). __xfrm_lookup() is used when we want to generate a blackhole route if the key manager needs to resolve the IPSEC rules (in this case -EREMOTE is returned and the original 'dst' is left unchanged). Otherwise plain xfrm_lookup() is used and when asynchronous IPSEC resolution is necessary, we simply fail the lookup completely. All of these cases are encapsulated into two routines, ip6_dst_lookup_flow and ip6_sk_dst_lookup_flow. The latter of which handles unconnected UDP datagram sockets. Signed-off-by: David S. Miller <davem@davemloft.net>
* udp: Add lockless transmit pathHerbert Xu2011-03-01
| | | | | | | | | | | | | | | | | | | | | | | | The UDP transmit path has been running under the socket lock for a long time because of the corking feature. This means that transmitting to the same socket in multiple threads does not scale at all. However, as most users don't actually use corking, the locking can be removed in the common case. This patch creates a lockless fast path where corking is not used. Please note that this does create a slight inaccuracy in the enforcement of socket send buffer limits. In particular, we may exceed the socket limit by up to (number of CPUs) * (packet size) because of the way the limit is computed. As the primary purpose of socket buffers is to indicate congestion, this should not be a great problem for now. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* udp: Switch to ip_finish_skbHerbert Xu2011-03-01
| | | | | | | | | | This patch converts UDP to use the new ip_finish_skb API. This would then allows us to more easily use ip_make_skb which allows UDP to run without a socket lock. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: Add ip_make_skb and ip_finish_skbHerbert Xu2011-03-01
| | | | | | | | | | | | | | | | | | | | | | This patch adds the helper ip_make_skb which is like ip_append_data and ip_push_pending_frames all rolled into one, except that it does not send the skb produced. The sending part is carried out by ip_send_skb, which the transport protocol can call after it has tweaked the skb. It is meant to be called in cases where corking is not used should have a one-to-one correspondence to sendmsg. This patch also adds the helper ip_finish_skb which is meant to be replace ip_push_pending_frames when corking is required. Previously the protocol stack would peek at the socket write queue and add its header to the first packet. With ip_finish_skb, the protocol stack can directly operate on the final skb instead, just like the non-corking case with ip_make_skb. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: Remove explicit write references to sk/inet in ip_append_dataHerbert Xu2011-03-01
| | | | | | | | | | | | | | In order to allow simultaneous calls to ip_append_data on the same socket, it must not modify any shared state in sk or inet (other than those that are designed to allow that such as atomic counters). This patch abstracts out write references to sk and inet_sk in ip_append_data and its friends so that we may use the underlying code in parallel. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* inet: Remove unused sk_sndmsg_* from UFOHerbert Xu2011-03-01
| | | | | | | | | | UFO doesn't really use the sk_sndmsg_* parameters so touching them is pointless. It can't use them anyway since the whole point of UFO is to use the original pages without copying. Signed-off-by: Herbert Xu <herbert@gondor.apana.org.au> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* Merge branch 'for-davem' of ↵David S. Miller2011-03-01
|\ | | | | | | git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-next-2.6
| * sfc: Bump version to 3.1Ben Hutchings2011-02-28
| | | | | | | | | | | | | | All features originally planned for version 3.1 (and some that weren't) have been implemented. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Remove configurable FIFO thresholds for pause frame generationBen Hutchings2011-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | In Falcon we can configure the fill levels of the RX data FIFO which trigger the generation of pause frames (if enabled), and we have module parameters for this. Siena does not allow the levels to be configured (or, if it does, this is done by the MC firmware and is not configurable by drivers). So far as I can tell, the module parameters are not used by our internal scripts and have not been documented (with the exception of the short parameter descriptions). Therefore, remove them and always initialise Falcon with the default values. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Expose TX push and TSO counters through ethtool statisticsBen Hutchings2011-02-28
| | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Update copyright datesBen Hutchings2011-02-28
| | | | | | | | Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Do not read STAT1.FAULT in efx_mdio_check_mmd()Ben Hutchings2011-02-28
| | | | | | | | | | | | | | | | | | | | This field does not exist in all MMDs we want to check, and all callers allow it to be set (fault_fatal = 0). Remove the loopback condition, as STAT2.DEVPRST should be valid regardless of any fault. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Read MC firmware version when requested through ethtoolBen Hutchings2011-02-28
| | | | | | | | | | | | | | | | | | | | We currently make no use of siena_nic_data::fw_{version,build} except to format the firmware version for ethtool_get_drvinfo(). Since we only read the version at start of day, this information is incorrect after an MC firmware update. Remove the cached version information and read it via MCDI whenever it is requested. Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Reduce size of efx_rx_buffer further by removing data memberSteve Hodgson2011-02-28
| | | | | | | | | | | | | | Instead calculate the KVA of receive data. It's not like it's a hard sum. [bwh: Fixed to work with GRO.] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
| * sfc: Reduce size of efx_rx_buffer by unionising skb and pageSteve Hodgson2011-02-28
| | | | | | | | | | [bwh: Forward-ported to net-next-2.6.] Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
* | bonding: use the correct size for _simple_hash()Amerigo Wang2011-02-28
| | | | | | | | | | | | | | | | Clearly it should be the size of ->ip_dst here. Although this is harmless, but it still reads odd. Signed-off-by: WANG Cong <amwang@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | enic: Flush driver cache of registered addr lists during port profile ↵Roopa Prabhu2011-02-28
| | | | | | | | | | | | | | | | | | | | | | | | | | disassociate During a port profile disassociate all address registrations for the interface are blown away from the adapter. This patch resets the driver cache of registered address lists to zero after a port profile disassociate. Signed-off-by: Roopa Prabhu <roprabhu@cisco.com> Signed-off-by: David Wang <dwang2@cisco.com> Signed-off-by: Christian Benvenuti <benve@cisco.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | DM9000: Allow randomised ethernet addressBen Dooks2011-02-28
| | | | | | | | | | | | | | | | | | Allow randomised ethernet address if the device does not have a valid EEPROM or pre-set MAC address. Signed-off-by: Ben Dooks <ben-linux@fluff.org> Signed-off-by: Mark Brown <broonie@opensource.wolfsonmicro.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | qla3xxx: add missing __iomem annotationstephen hemminger2011-02-28
| | | | | | | | | | | | | | | | | | Add necessary annotations about pointer to io memory space that is checked by sparse. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Acked-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bonding: fix sparse warningstephen hemminger2011-02-28
| | | | | | | | | | | | | | | | Fix use of zero where NULL expected. And wrap long line. Signed-off-by: Stephen Hemminger <shemminger@vyatta.com> Signed-off-by: Jay Vosburgh <fubar@us.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: TX timestamps for IPv6 UDP packetsAnders Berggren2011-02-28
| | | | | | | | | | | | | | | | | | Enabling TX timestamps (SO_TIMESTAMPING) for IPv6 UDP packets, in the same fashion as for IPv4. Necessary in order for NICs such as Intel 82580 to timestamp IPv6 packets. Signed-off-by: Anders Berggren <anders@halon.se> Signed-off-by: David S. Miller <davem@davemloft.net>
* | sis900: use pci_dev->revisionSergei Shtylyov2011-02-28
| | | | | | | | | | | | | | | | | | This driver uses PCI_CLASS_REVISION instead of PCI_REVISION_ID, so it wasn't converted by commit 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 (PCI: Change all drivers to use pci_device->revision). Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | llc: avoid skb_clone() if there is only one handlerChangli Gao2011-02-28
| | | | | | | | | | Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | bnx2x: use dcb_setapp to manage negotiated application tlvsShmulik Ravid2011-02-28
| | | | | | | | | | | | | | | | | | | | | | | | With this patch the bnx2x uses the generic dcbnl application tlv list instead of implementing its own get-app handler. When the driver is alerted to a change in the DCB negotiated parameters, it calls dcb_setapp to update the dcbnl application tlvs list making it available to user mode applications and registered notifiers. Signed-off-by: Shmulik Ravid <shmulikr@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: use pci_dev->revision, againSergei Shtylyov2011-02-28
| | | | | | | | | | | | | | | | | | | | | | | | Several more network drivers that read the device's revision ID from the PCI configuration register were merged after the commit 44c10138fd4bbc4b6d6bff0873c24902f2a9da65 (PCI: Change all drivers to use pci_device->revision), so it's time to do another pass of conversion to using the 'revision' field of 'struct pci_dev'... Signed-off-by: Sergei Shtylyov <sshtylyov@ru.mvista.com> Acked-by: "John W. Linville" <linville@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* | net: Forgot to commit net/core/dev.c part of Jiri's ->rx_handler patch.David S. Miller2011-02-28
|/ | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: convert bonding to use rx_handlerJiri Pirko2011-02-28
| | | | | | | | | | | | | This patch converts bonding to use rx_handler. Results in cleaner __netif_receive_skb() with much less exceptions needed. Also bond-specific work is moved into bond code. Did performance test using pktgen and counting incoming packets by iptables. No regression noted. Signed-off-by: Jiri Pirko <jpirko@redhat.com> Reviewed-by: Nicolas de Pesloüan <nicolas.2p.debian@free.fr> Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Pass const xfrm_mark to xfrm_mark_put().David S. Miller2011-02-28
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Pass const xfrm_address_t objects to xfrm_state_lookup* and xfrm_find_acq.David S. Miller2011-02-28
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Pass const arg to xfrm_alg_len and xfrm_alg_auth_len.David S. Miller2011-02-28
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* xfrm: Pass name as const to xfrm_*_get_byname().David S. Miller2011-02-28
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* bond: service netpoll arp queue on master deviceAmerigo Wang2011-02-27
| | | | | | | | | Neil pointed out that we can't send ARP reply on behalf of slaves, we need to move the arp queue to their bond device. Signed-off-by: WANG Cong <amwang@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* netpoll: remove IFF_IN_NETPOLL flagAmerigo Wang2011-02-27
| | | | | | | | | | | | V4: rebase to net-next-2.6 This patch removes the flag IFF_IN_NETPOLL, we don't need it any more since we have netpoll_tx_running() now. Signed-off-by: WANG Cong <amwang@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* bonding: sync netpoll code with bridgeAmerigo Wang2011-02-27
| | | | | | | | | | | | | V4: rebase to net-next-2.6 V3: remove an useless #ifdef. This patch unifies the netpoll code in bonding with netpoll code in bridge, thanks to Herbert that code is much cleaner now. Signed-off-by: WANG Cong <amwang@redhat.com> Acked-by: Neil Horman <nhorman@tuxdriver.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
* qeth: remove needless IPA-commands in offlineUrsula Braun2011-02-27
| | | | | | | | | | | If a qeth device is set offline, data and control subchannels are cleared, which means removal of all IP Assist Primitive settings implicitly. There is no need to delete those settings explicitly. This patch removes all IP Assist invocations from offline. Signed-off-by: Ursula Braun <ursula.braun@de.ibm.com> Signed-off-by: Frank Blaschka <frank.blaschka@de.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* pfkey: Use const where possible.David S. Miller2011-02-25
| | | | | | | This actually pointed out a (seemingly known) bug where we mangle the pfkey header in a potentially shared SKB, which is fixed here. Signed-off-by: David S. Miller <davem@davemloft.net>
* sched: protocol only needed when CONFIG_NET_CLS_ACT is enabledHagen Paul Pfeifer2011-02-25
| | | | | Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: ignore rtnl_unicast() return codeHagen Paul Pfeifer2011-02-25
| | | | | | | | rtnl_unicast() return value is not of interest, we can silently ignore it, save some instructions and four byte on the stack. Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: variable next is never used in this functionHagen Paul Pfeifer2011-02-25
| | | | | Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: hash is calculated but not used afterwardsHagen Paul Pfeifer2011-02-25
| | | | | | | | hash is declared and assigned but not used anymore. ipv6_addr_hash() exhibit no side-effects. Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* ipv6: totlen is declared and assigned but not usedHagen Paul Pfeifer2011-02-25
| | | | | Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* dccp: newdp is declared/assigned but never be usedHagen Paul Pfeifer2011-02-25
| | | | | | | | Declaration and assignment of newdp is removed. Usage of dccp_sk() exhibit no side effects. Signed-off-by: Hagen Paul Pfeifer <hagen@jauu.net> Signed-off-by: David S. Miller <davem@davemloft.net>
* phonet: Protect pipe_do_remove() with appropriate ifdefs.David S. Miller2011-02-25
| | | | | | It is only used when CONFIG_PHONET_PIPECTRLR is not set. Signed-off-by: David S. Miller <davem@davemloft.net>
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