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2011-09-17tipc: Remove callback field from subscription structureYing Xue2-8/+1
Eliminate the "event_cb" member from TIPC's "subscription" structure since the function pointer it holds always points to subscr_send_event(). Signed-off-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Simplify prohibition of listen and accept for connectionless socketsYing Xue1-9/+3
Modifies the proto_ops structure used by TIPC DGRAM and RDM sockets so that calls to listen() and accept() are handled by existing kernel "unsupported operation" routines, and eliminates the related checks in the listen and accept routines used by SEQPACKET and STREAM sockets that are no longer needed. Signed-off-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Add support for SO_SNDTIMEO socket optionYing Xue1-12/+14
Adds support for the SO_SNDTIMEO socket option. (This complements the existing support for SO_RCVTIMEO that is already present.) Signed-off-by: Ying Xue <ying.xue@windriver.com> Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Enhance sending of bulk name table messagesAllan Stephens3-2/+54
Modifies the initial transfer of name table entries to a new neighboring node so that the messages are enqueued as a unit, rather than individually. The revised algorithm now locates the link carrying the message only once, and eliminates unnecessary checks for link congestion, message fragmentation, and message bundling that are not required when sending these messages. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: relocate/coalesce node cast in tipc_named_node_upPaul Gortmaker1-2/+3
Functions like this are called using unsigned longs from function pointers. In this case, the function is passed in a node which is normally internally treated as a u32 by TIPC. Rather than add more casts into this function in the future for each added use of node within, move the cast to a single place on a local. Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Prevent fragmented messages during initial name table exchangeAllan Stephens1-3/+19
Reduces the maximum size of messages sent during the initial exchange of name table information between two nodes to be no larger than the MTU of the first link established between the nodes. This ensures that messages will never need to be fragmented, which would add unnecessary overhead to the name table synchronization mechanism. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Lower limits for number of bearers and media typesAllan Stephens2-3/+3
Reduces the number of bearers a node can support to 2, which can use identical or non-identical media. This change won't impact users, since they are currently limited to a maximum of 2 Ethernet bearers, and will save memory by eliminating a number of unused entries in TIPC's media and bearer arrays. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Remove redundant search when enabling bearerAllan Stephens1-15/+9
Removes obsolete code that searches for an Ethernet bearer structure entry to use for a newly enabled bearer, since this search is now performed at the start of the enabling algorithm. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Fix unsafe device list search when enabling bearerAllan Stephens1-2/+4
Ensures that the device list lock is held while trying to locate the Ethernet device used by a newly enabled bearer, so that the addition or removal of a device does not cause problems. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-17tipc: Ensure both nodes recognize loss of contact between themAllan Stephens4-18/+42
Enhances TIPC to ensure that a node that loses contact with a neighboring node does not allow contact to be re-established until it sees that its peer has also recognized the loss of contact. Previously, nodes that were connected by two or more links could encounter a situation in which node A would lose contact with node B on all of its links, purge its name table of names published by B, and then fail to repopulate those names once contact with B was restored. This would happen because B was able to re-establish one or more links so quickly that it never reached a point where it had no links to A -- meaning that B never saw a loss of contact with A, and consequently didn't re-publish its names to A. This problem is now prevented by enhancing the cleanup done by TIPC following a loss of contact with a neighboring node to ensure that node A ignores all messages sent by B until it receives a LINK_PROTOCOL message that indicates B has lost contact with A, thereby preventing the (re)establishment of links between the nodes. The loss of contact is recognized when a RESET or ACTIVATE message is received that has a "redundant link exists" field of 0, indicating that B's sending link endpoint is in a reset state and that B has no other working links. Additionally, TIPC now suppresses the sending of (most) link protocol messages to a neighboring node while it is cleaning up after an earlier loss of contact with that node. This stops the peer node from prematurely activating its link endpoint, which would prevent TIPC from later activating its own end. TIPC still allows outgoing RESET messages to occur during cleanup, to avoid problems if its own node recognizes the loss of contact first and tries to notify the peer of the situation. Finally, TIPC now recognizes an impending loss of contact with a peer node as soon as it receives a RESET message on a working link that is the peer's only link to the node, and ensures that the link protocol suppression mentioned above goes into effect right away -- that is, even before its own link endpoints have failed. This is necessary to ensure correct operation when there are redundant links between the nodes, since otherwise TIPC would send an ACTIVATE message upon receiving a RESET on its first link and only begin suppressing when a RESET on its second link was received, instead of initiating suppression with the first RESET message as it needs to. Note: The reworked cleanup code also eliminates a check that prevented a link endpoint's discovery object from responding to incoming messages while stale name table entries are being purged. This check is now unnecessary and would have slowed down re-establishment of communication between the nodes in some situations. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Ensure congested links receive bearer status updatesAllan Stephens1-0/+2
Modifies code that disables a bearer to ensure that all of its links are deleted, not just its uncongested links. Similarly, modifies code that blocks a bearer to ensure that all of its links are reset, not just its uncongested links. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Prevent rounding issues when saving connect timeout optionAllan Stephens1-6/+7
Saves a socket's TIPC_CONN_TIMEOUT socket option value in its original form (milliseconds), rather than jiffies. This ensures that the exact value set using setsockopt() is always returned by getsockopt(), without being subject to rounding issues introduced by a ms->jiffies->ms conversion sequence. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Eliminate redundant check when sending messagesAllan Stephens1-3/+0
Eliminates code in tipc_send_buf_fast() that handles messages sent to a destination on the current node, since the only caller of the routine only passes in messages destined for other nodes. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Remove obsolete congestion handling when sending a broadcast NACKAllan Stephens1-8/+3
Eliminates obsolete code that handles broadcast bearer congestion when the broadast link sends a NACK message, since the broadcast pseudo-bearer never becomes blocked. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Discard incoming broadcast messages that are unexpectedAllan Stephens1-2/+11
Modifies TIPC's incoming broadcast packet handler to discard messages that cannot legally be sent over the broadcast link, including: - broadcast protocol messages that do no contain state information - payload messages that are not named multicast messages - any other form of message except for bundled messages, fragmented messages, and name distribution messages. These checks are needed to prevent TIPC from handing an unexpected message to a routine that isn't prepared to handle it, which could lead to incorrect processing (up to and including invalid memory references caused by attempts to access message fields that aren't present in the message). Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Remove deferred queue head caching during broadcast message receptionAllan Stephens1-1/+1
Modifies TIPC's incoming broadcast packet handler so that it no longer pre-reads information about the deferred packet queue, since the cached value is unreliable once the associated node lock has been released. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Fix node lock problems during broadcast message receptionAllan Stephens1-13/+23
Modifies TIPC's incoming broadcast packet handler to ensure that the node lock associated with the sender of the packet is held whenever node-related data structure fields are accessed. The routine is also restructured with a single exit point, making it easier to ensure the node lock is properly released and the incoming packet is properly disposed of. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Prevent broadcast link stalling when another node failsAllan Stephens1-1/+1
Ensure that broadcast link messages that have not been acknowledged by a newly failed node do not get an implied acknowledgement until the failed node is removed from the broadcast link's map of reachable nodes. Previously, a race condition allowed a new broadcast link message to be sent after the implicit acknowledgement processing was completed, but before the map of reachable nodes was updated, resulting in the message having an expected acknowledgement count that required the failed node to explicitly acknowledge the message. Since this would never occur the new message would remain in the broadcast link's transmit queue forever, eventually causing the link to become congested and "stall". Delaying the implicit acknowledgement processing until after the update of the map of reachable nodes eliminates this race condition and prevents stalling. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Enhance cleanup of broadcast link when contact with node is lostAllan Stephens1-14/+18
Enhances cleanup of broadcast link-related information when contact with a node is lost. 1) All broadcast link-related cleanup now occurs only if the lost node was capable of communicating over the broadcast link. 2) Following cleanup, the lost node is marked as no longer supporting the broadcast link, ensuring that any remaining broadcast messages received from that node prior to the re-establishment of a normal communication link are ignored. Thanks to Surya [Suryanarayana.Garlapati@emerson.com] for contributing a prototype version of this patch. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Remove non-executable code to handle broadcast bearer congestionAllan Stephens3-27/+1
Eliminates code associated with the sending of unsent broadcast link traffic when the broadcast pseudo-bearer becomes unblocked following a temporary congestion situation. This code is non-executable because the broadcast pseudo-bearer never becomes blocked [see tipc_bcbearer_send()]. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Cosmetic changes to broadcast bearer send routineAllan Stephens1-12/+12
Updates the comments in the broadcast bearer send routine to more accurately describe the processing done by the routine. Also replaces the improper use of a TIPC payload message error status symbol (in a place that has nothing to do with such errors) with its numeric equivalent. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Update obsolete references to multicast linkAllan Stephens1-2/+2
Updates TIPC's broadcast link in a couple of places that were missed during the transition from its former name ("multicast-link") to its current name ("broadcast-link"). These changes are essentially cosmetic and do not affect the overall operation of TIPC. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Enhance filtering of out-dated link reset messagesAllan Stephens1-2/+2
Ensure TIPC ignores an out-dated link reset message whose session number predates the current session number. (Previously, TIPC only ignored an out-date reset message whose session number was equal to the current link session number.) Out-dated link reset messages should not occur under normal circumstances; however, they can be generated if a link endpoint is unable to send a link reset message right away and queues it for later delivery, but the queued message is not sent until after the link is established. Thanks to Laser [gotolaser@gmail.com] for diagnosing the problem and contributing a prototype patch. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Initialize peer session field of newly created link endpointAllan Stephens1-0/+1
Initializes the peer session number field of a newly created link endpoint to an invalid value. This eliminates the remote possibility that it will accidentally match the session number used by the peer the first time the link is activated, and cause the link to ignore a valid RESET message. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Display meaningful peer interface name during link creationAllan Stephens1-2/+2
Sets the peer interface portion of the name of a newly created link endpoint to "unknown". This ensures that state and statistics information can be properly displayed during the time between the link endpoint's creation and the time handshaking with its peer is completed. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Eliminate obsolete filter for unexpected unicast messagesAllan Stephens1-9/+2
Removes a test that ensures unicast link endpoints discard an incoming message if it will not be consumed by the node itself and cannot be forwarded to another node, since the preceding test already ensures that the message is destined for this node and single-cluster TIPC no longer performs message forwarding. Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-09-01tipc: Remove obsolete manipulation of message re-route count fieldAllan Stephens1-11/+0
Eliminates code that increments and validates the re-route count field of payload messages, since the elimination of multi-cluster support means that it is no longer necessary for TIPC to forward incoming messages to another node. (The obsolete code was incorrect anyway, since it incorrectly incremented the re-route count field of messages that originated on the node that forwarded the message.) Signed-off-by: Allan Stephens <allan.stephens@windriver.com> Signed-off-by: Paul Gortmaker <paul.gortmaker@windriver.com>
2011-08-30greth: convert to SKB paged frag API.Ian Campbell1-8/+4
In order to avoid long lines also use phys_to_virt(page_to_phys(page)) => page_address(page) (since the are effectively the same thing for lowmem pages). Also dump the frag's size instead of the headlen when dumping a frag. Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30gianfar: convert to SKB paged frag API.Ian Campbell1-5/+5
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30forcedeth: convert to SKB paged frag API.Ian Campbell1-4/+10
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30enic: convert to SKB paged frag API.Ian Campbell1-7/+7
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Christian Benvenuti <benve@cisco.com> Cc: Vasanthy Kolluri <vkolluri@cisco.com> Cc: Roopa Prabhu <roprabhu@cisco.com> Cc: David Wang <dwang2@cisco.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30intel: convert to SKB paged frag API.Ian Campbell7-30/+22
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Cc: Jesse Brandeburg <jesse.brandeburg@intel.com> Cc: Bruce Allan <bruce.w.allan@intel.com> Cc: Carolyn Wyborny <carolyn.wyborny@intel.com> Cc: Don Skidmore <donald.c.skidmore@intel.com> Cc: Greg Rose <gregory.v.rose@intel.com> Cc: PJ Waskiewicz <peter.p.waskiewicz.jr@intel.com> Cc: Alex Duyck <alexander.h.duyck@intel.com> Cc: John Ronciak <john.ronciak@intel.com> Cc: e1000-devel@lists.sourceforge.net Cc: netdev@vger.kernel.org Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30cassini: convert to SKB paged frag API.Ian Campbell1-8/+7
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30bna: convert to SKB paged frag API.Ian Campbell1-2/+2
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Rasesh Mody <rmody@brocade.com> Cc: Debashis Dutt <ddutt@brocade.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30benet: convert to SKB paged frag API.Ian Campbell1-5/+5
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Sathya Perla <sathya.perla@emulex.com> Cc: Subbu Seetharaman <subbu.seetharaman@emulex.com> Cc: Ajit Khaparde <ajit.khaparde@emulex.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30atlx: convert to SKB paged frag API.Ian Campbell1-3/+2
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Jay Cliburn <jcliburn@gmail.com> Cc: Chris Snook <chris.snook@gmail.com> Cc: Jie Yang <jie.yang@atheros.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30atl1e: convert to SKB paged frag API.Ian Campbell1-6/+5
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Jay Cliburn <jcliburn@gmail.com> Cc: Chris Snook <chris.snook@gmail.com> Cc: Jie Yang <jie.yang@atheros.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30atl1c: convert to SKB paged frag API.Ian Campbell1-5/+4
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Jay Cliburn <jcliburn@gmail.com> Cc: Chris Snook <chris.snook@gmail.com> Cc: Jie Yang <jie.yang@atheros.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-30acenic: convert to SKB paged frag API.Ian Campbell1-3/+3
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Jes Sorensen <jes@trained-monkey.org> Cc: linux-acenic@sunsite.dk Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-308139cp: convert to SKB paged frag API.Ian Campbell1-2/+1
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-303c59x: convert to SKB paged frag API.Ian Campbell1-3/+4
Signed-off-by: Ian Campbell <ian.campbell@citrix.com> Cc: Steffen Klassert <klassert@mathematik.tu-chemnitz.de> Cc: netdev@vger.kernel.org Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29bnx2x: Fix build errorDmitry Kravkov1-1/+1
On Mon, 2011-08-29 at 13:28 -0700, Randy Dunlap wrote: > (on i386 or x86_64) > > drivers/net/ethernet/broadcom/bnx2x/bnx2x_main.c:10148: error: 'bnx2x_fcoe_get_wwn' undeclared here (not in a function) This should sync #define structures between definition and declaration Acked-by: Randy Dunlap <rdunlap@xenotime.net> Reported-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Acked-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29net: Fix duplicate CONFIG_SLIP entry in driver/net/MakefileDavid S. Miller1-1/+0
Reported-by: Stephen Rothwell <sfr@canb.auug.org.au> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29qlcnic: add beacon test support.Sucheta Chakraborty3-2/+108
Beacon test flashes both port LEDs instead of just 1 LED of a port. Updated driver version to 5.0.23. Signed-off-by: Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29qlcnic: fix cdrp race conditionSritej Velaga4-32/+95
Reading CRB registers(if reqd) before releasing the api lock. Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29qlcnic: Add FLT entry for CO cards FW image regionSritej Velaga2-2/+10
The FLT entry for FW image region has changed for C0 cards. Updated the driver to look at the right region in the FLT. Signed-off-by: Sritej Velaga <sritej.velaga@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29qlcnic: Change debug messages in loopback pathManish chopra2-8/+13
Added more debug messages while loopback test in progress Signed-off-by: Manish chopra <Manish.Chopra@qlogic.com> Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29qlcnic: detect fan failureSony Chacko3-7/+27
Signed-off-by: Sony Chacko <sony.chacko@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-29Merge branch 'for-davem' of ↵David S. Miller121-1490/+5613
git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next
2011-08-29net: fix Makefile typos & build errorsRandy Dunlap1-3/+3
Fix many (randconfig) PPP build errors by fixing typos in drivers/net/Makefile. Signed-off-by: Randy Dunlap <rdunlap@xenotime.net> Signed-off-by: David S. Miller <davem@davemloft.net>
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