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2010-11-25IPVS: Backup, Adding Version 1 receive capabilityHans Schillstrom
Functionality improvements * flags changed from 16 to 32 bits * fwmark added (32 bits) * timeout in sec. added (32 bits) * pe data added (Variable length) * IPv6 capabilities (3x16 bytes for addr.) * Version and type in every conn msg. ip_vs_process_message() now handles Version 1 messages and will call ip_vs_process_message_v0() for version 0 messages. ip_vs_proc_conn() is common for both version, and handles the update of connection hash. ip_vs_conn_fill_param_sync() - Version 1 messages only ip_vs_conn_fill_param_sync_v0() - Version 0 messages only Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-25IPVS: Backup, Adding structs for new sync formatHans Schillstrom
New structs defined for version 1 of sync. * ip_vs_sync_v4 Ipv4 base format struct * ip_vs_sync_v6 Ipv6 base format struct Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-25IPVS: Handle Scheduling errors.Hans Schillstrom
If ip_vs_conn_fill_param_persist return an error to ip_vs_sched_persist, this error must propagate as ignored=-1 to ip_vs_schedule(). Errors from ip_vs_conn_new() in ip_vs_sched_persist() and ip_vs_schedule() should also return *ignored=-1; This patch just relies on the fact that ignored is 1 before calling ip_vs_sched_persist(). Sent from Julian: "The new case when ip_vs_conn_fill_param_persist fails should set *ignored = -1, so that we can use NF_DROP, see below. *ignored = -1 should be also used for ip_vs_conn_new failure in ip_vs_sched_persist() and ip_vs_schedule(). The new negative value should be handled in tcp,udp,sctp" "To summarize: - *ignored = 1: protocol tried to schedule (eg. on SYN), found svc but the svc/scheduler decides that this packet should be accepted with NF_ACCEPT because it must not be scheduled. - *ignored = 0: scheduler can not find destination, so try bypass or return ICMP and then NF_DROP (ip_vs_leave). - *ignored = -1: scheduler tried to schedule but fatal error occurred, eg. ip_vs_conn_new failure (ENOMEM) or ip_vs_sip_fill_param failure such as missing Call-ID, ENOMEM on skb_linearize or pe_data. In this case we should return NF_DROP without any attempts to send ICMP with ip_vs_leave." More or less all ideas and input to this patch is work from Julian Anastasov Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-25IPVS: skb defrag in L7 helpersHans Schillstrom
L7 helpers like sip needs skb defrag since L7 data can be fragmented. This patch requires "IPVS Break ports-2 into src_port and dst_port" patch Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-25IPVS: Split ports[2] into src_port and dst_portHans Schillstrom
Avoid sending invalid pointer due to skb_linearize() call. This patch prepares for next patch where skb_linearize is a part. In ip_vs_sched_persist() params the ports ptr will be replaced by src and dst port. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-25IPVS: Backup, Prepare for transferring firewall marks (fwmark) to the backup ↵Hans Schillstrom
daemon. One struct will have fwmark added: * ip_vs_conn ip_vs_conn_new() and ip_vs_find_dest() will have an extra param - fwmark The effects of that, is in this patch. Signed-off-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Acked-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16Merge branch 'for-patrick' of ↵Patrick McHardy
git://git.kernel.org/pub/scm/linux/kernel/git/horms/lvs-test-2.6
2010-11-16netfilter: nf_conntrack: one less atomic op in nf_ct_expect_insert()Eric Dumazet
Instead of doing atomic_inc(&exp->use) twice, call atomic_add(2, &exp->use); Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-16ipvs: allow transmit of GRO aggregated skbsSimon Horman
Attempt at allowing LVS to transmit skbs of greater than MTU length that have been aggregated by GRO and can thus be deaggregated by GSO. Cc: Julian Anastasov <ja@ssi.bg> Cc: Herbert Xu <herbert@gondor.apana.org.au> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16ipvs: remove shadow rt variableEric Dumazet
Remove a sparse warning about rt variable. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16ipvs: add static and read_mostly attributesEric Dumazet
ip_vs_conn_tab_bits & ip_vs_conn_tab_mask are static to ipvs/ip_vs_conn.c ip_vs_conn_tab_size, ip_vs_conn_tab_mask, ip_vs_conn_tab [the pointer], ip_vs_conn_rnd are mostly read. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16IPVS: buffer argument to ip_vs_process_message() should not be constSimon Horman
It is assigned to a non-const variable and its contents are modified. Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16IPVS: Remove useless { } block from ip_vs_process_message()Simon Horman
Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16IPVS: Make the cp argument to ip_vs_sync_conn() staticSimon Horman
Acked-by: Hans Schillstrom <hans.schillstrom@ericsson.com> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16IPVS: Only match pe_data created by the same peSimon Horman
Only match persistence engine data if it was created by the same persistence engine. Reported-by: Julian Anastasov <ja@ssi.bg> Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-16IPVS: Add persistence engine to connection entrySimon Horman
The dest of a connection may not exist if it has been created as the result of connection synchronisation. But in order for connection entries for templates with persistence engine data created through connection synchronisation to be valid access to the persistence engine pointer is required. So add the persistence engine to the connection itself. Signed-off-by: Simon Horman <horms@verge.net.au>
2010-11-15netfilter: rcu sparse cleanupsEric Dumazet
Use RCU helpers to reduce number of sparse warnings (CONFIG_SPARSE_RCU_POINTER=y), and adds lockdep checks. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: nf_nat_amanda: rename a variableEric Dumazet
Avoid a sparse warning about 'ret' variable shadowing Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: add __rcu annotationsEric Dumazet
Use helpers to reduce number of sparse warnings (CONFIG_SPARSE_RCU_POINTER=y) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: nf_ct_frag6_sysctl_table is staticEric Dumazet
Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: add __rcu annotationsEric Dumazet
Add some __rcu annotations and use helpers to reduce number of sparse warnings (CONFIG_SPARSE_RCU_POINTER=y) Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: xt_CLASSIFY: add ARP support, allow CLASSIFY target on any tableFrédéric Leroy
Signed-off-by: Frédéric Leroy <fredo@starox.org> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: nf_nat: define nat_pptp_info as neededChangli Gao
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: ct_extend: define NF_CT_EXT_* as neededChangli Gao
Less IDs make nf_ct_ext smaller. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: nf_nat: don't use atomic bit operationChangli Gao
As we own the conntrack and the others can't see it until we confirm it, we don't need to use atomic bit operation on ct->status. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: nf_conntrack: define ct_*_info as neededChangli Gao
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: ct_extend: fix the wrong alloc_sizeChangli Gao
In function update_alloc_size(), sizeof(struct nf_ct_ext) is added twice wrongly. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-15netfilter: xt_LOG: do print MAC header on FORWARDJan Engelhardt
I am observing consistent behavior even with bridges, so let's unlock this. xt_mac is already usable in FORWARD, too. Section 9 of http://ebtables.sourceforge.net/br_fw_ia/br_fw_ia.html#section9 says the MAC source address is changed, but my observation does not match that claim -- the MAC header is retained. Signed-off-by: Jan Engelhardt <jengelh@medozas.de> [Patrick; code inspection seems to confirm this] Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-12netfilter: xt_NFQUEUE: remove modulo operationsChangli Gao
Signed-off-by: Changli Gao <xiaosuo@gmail.com> Acked-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-12netfilter: nf_conntrack: don't always initialize ct->protoChangli Gao
ct->proto is big(60 bytes) due to structure ip_ct_tcp, and we don't need to initialize the whole for all the other protocols. This patch moves proto to the end of structure nf_conn, and pushes the initialization down to the individual protocols. Signed-off-by: Changli Gao <xiaosuo@gmail.com> Signed-off-by: Patrick McHardy <kaber@trash.net>
2010-11-11ipv4: Make rt->fl.iif tests lest obscure.David S. Miller
When we test rt->fl.iif against zero, we're seeing if it's an output or an input route. Make that explicit with some helper functions. Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11Merge branch 'dccp' of git://eden-feed.erg.abdn.ac.uk/net-next-2.6David S. Miller
2010-11-11net: get rid of rtable->idevEric Dumazet
It seems idev field in struct rtable has no special purpose, but adding extra atomic ops. We hold refcounts on the device itself (using percpu data, so pretty cheap in current kernel). infiniband case is solved using dst.dev instead of idev->dev Removal of this field means routing without route cache is now using shared data, percpu data, and only potential contention is a pair of atomic ops on struct neighbour per forwarded packet. About 5% speedup on routing test. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Cc: Herbert Xu <herbert@gondor.apana.org.au> Cc: Roland Dreier <rolandd@cisco.com> Cc: Sean Hefty <sean.hefty@intel.com> Cc: Hal Rosenstock <hal.rosenstock@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11neigh: reorder struct neighbourEric Dumazet
It is important to move nud_state outside of the often modified cache line (because of refcnt), to reduce false sharing in neigh_event_send() This is a followup of commit 0ed8ddf4045f (neigh: Protect neigh->ha[] with a seqlock) This gives a 7% speedup on routing test with IP route cache disabled. Signed-off-by: Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: update driver versionJon Mason
Update vxge driver version Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: sparse and other clean-upsJon Mason
Correct issues found by running sparse on the vxge driver, as well as other miscellaneous cleanups. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: update KconfigJon Mason
Update Kconfig to reflect Exar's purchase of Neterion (formerly S2IO). Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: correct multi-function detectionJon Mason
The values used to determined if the adapter is running in single or multi-function mode were previously modified to the values necessary when making the VXGE_HW_FW_API_GET_FUNC_MODE firmware call. However, the firmware call was not modified. This had the driver printing out on probe that the adapter was in multi-function mode when in single function mode and vice versa. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: Titan1A detectionJon Mason
Detect if the adapter is Titan or Titan1A, and tune the driver for this hardware. Also, remove unnecessary function __vxge_hw_device_id_get. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: Handle errors in vxge_hw_vpath_fw_apiJon Mason
Propagate the return code of the call to vxge_hw_vpath_fw_api and __vxge_hw_vpath_pci_func_mode_get. This enables the proper handling of error conditions when querying the function mode of the device during probe. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: add receive hardware timestampingJon Mason
Add support for enable/disabling hardware timestamping on receive packets via ioctl call. When enabled, the hardware timestamp replaces the FCS in the payload. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: add support for ethtool firmware flashingJon Mason
Add the ability in the vxge driver to flash firmware via ethtool. Updated to include comments from Ben Hutchings. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: serialize access to steering control registerJon Mason
It is possible for multiple callers to access the firmware interface for the same vpath simultaneously, resulting in uncertain output. Add locks to serialize access. Also, make functions only accessed locally static, thus requiring some movement of code blocks. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: cleanup debug printing and assertsJon Mason
Remove all of the unnecessary debug printk indirection and temporary variables for vxge_debug_ll and vxge_assert. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: Wait for Rx to become idle before reseting or closingJon Mason
Wait for the receive traffic to become idle before attempting to close or reset the adapter. To enable the processing of packets while Receive Idle, move the clearing of __VXGE_STATE_CARD_UP bit in vxge_close to after it. Also, modify the return value of the ISR when the adapter is down to IRQ_HANDLED. Otherwise there are unhandled interrupts for the device. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-11vxge: enable rxhashJon Mason
Enable RSS hashing and add ability to pass up the adapter calculated rx hash up the network stack (if feature is available). Add the ability to enable/disable feature via ethtool, which requires that the adapter is not running at the time. Other miscellaneous cleanups and fixes required to get RSS working. Signed-off-by: Jon Mason <jon.mason@exar.com> Signed-off-by: Ram Vepa <ram.vepa@exar.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2010-11-10dccp ccid-2: Implementation of circular Ack Vector buffer with overflow handlingGerrit Renker
This completes the implementation of a circular buffer for Ack Vectors, by extending the current (linear array-based) implementation. The changes are: (a) An `overflow' flag to deal with the case of overflow. As before, dynamic growth of the buffer will not be supported; but code will be added to deal robustly with overflowing Ack Vector buffers. (b) A `tail_seqno' field. When naively implementing the algorithm of Appendix A in RFC 4340, problems arise whenever subsequent Ack Vector records overlap, which can bring the entire run length calculation completely out of synch. (This is documented on http://www.erg.abdn.ac.uk/users/gerrit/dccp/notes/\ ack_vectors/tracking_tail_ackno/ .) (c) The buffer length is now computed dynamically (i.e. current fill level), as the span between head to tail. As a result, dccp_ackvec_pending() is now simpler - the #ifdef is no longer necessary since buf_empty is always true when IP_DCCP_ACKVEC is not configured. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
2010-11-10dccp ccid-2: Separate internals of Ack Vectors from option-parsing codeGerrit Renker
This patch * separates Ack Vector housekeeping code from option-insertion code; * shifts option-specific code from ackvec.c into options.c; * introduces a dedicated routine to take care of the Ack Vector records; * simplifies the dccp_ackvec_insert_avr() routine: the BUG_ON was redundant, since the list is automatically arranged in descending order of ack_seqno. Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
2010-11-10dccp ccid-2: Ack Vector interface clean-upGerrit Renker
This patch brings the Ack Vector interface up to date. Its main purpose is to lay the basis for the subsequent patches of this set, which will use the new data structure fields and routines. There are no real algorithmic changes, rather an adaptation: (1) Replaced the static Ack Vector size (2) with a #define so that it can be adapted (with low loss / Ack Ratio, a value of 1 works, so 2 seems to be sufficient for the moment) and added a solution so that computing the ECN nonce will continue to work - even with larger Ack Vectors. (2) Replaced the #defines for Ack Vector states with a complete enum. (3) Replaced #defines to compute Ack Vector length and state with general purpose routines (inlines), and updated code to use these. (4) Added a `tail' field (conversion to circular buffer in subsequent patch). (5) Updated the (outdated) documentation for Ack Vector struct. (6) All sequence number containers now trimmed to 48 bits. (7) Removal of unused bits: * removed dccpav_ack_nonce from struct dccp_ackvec, since this is already redundantly stored in the `dccpavr_ack_nonce' (of Ack Vector record); * removed Elapsed Time for Ack Vectors (it was nowhere used); * replaced semantics of dccpavr_sent_len with dccpavr_ack_runlen, since the code needs to be able to remember the old run length; * reduced the de-/allocation routines (redundant / duplicate tests). Signed-off-by: Gerrit Renker <gerrit@erg.abdn.ac.uk>
2010-11-10qlge: Version change to v1.00.00.27Ron Mercer
Signed-off-by: Jitendra Kalsaria <jitendra.kalsaria@qlogic.com> Signed-off-by: Ron Mercer <ron.mercer@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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