- 24 Feb, 2011 5 commits
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David S. Miller authored
Signed-off-by:David S. Miller <davem@davemloft.net>
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David S. Miller authored
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David S. Miller authored
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David S. Miller authored
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- 23 Feb, 2011 35 commits
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Allan Stephens authored
Enhance TIPC to skip unnecessary (and, in some cases, redundant) preparation work when sending a broadcast link NACK message, since this preparation is only required for broadcast messages that are sent in a reliable manner. This change also fixes a bug that caused NACK messages to be improperly counted as "TX packets" in TIPC's broadcast link statistics. Signed-off-by:
Allan Stephens <Allan.Stephens@windriver.com> Signed-off-by:
Paul Gortmaker <paul.gortmaker@windriver.com>
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Allan Stephens authored
Eliminates support for the "number of requested links" field in a neighbor discovery message. This field was never used and has been removed from the TIPC 2.0 protocol specification. Signed-off-by:
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Allan Stephens authored
Eliminates TIPC's prototype support for message sequence numbering on routable connections (i.e. connections requiring more than one hop). This capability isn't currently used, and can be removed since TIPC only supports systems in which all inter-node communication can be achieved in a single hop. Signed-off-by:
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Allan Stephens authored
Ensure that the routine that starts up processing on a newly created link endpoint takes the spinlock of the node object that owns the link, to prevent possible conflicts with processing involving other links owned by that node object. Signed-off-by:
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Allan Stephens authored
Modifies TIPC's congestion control between a connected port and its peer so that it works as documented. The following changes have been made: 1) The counter of the number of messages sent by a port now starts at zero, rather than one. This prevents the port from reporting port congestion one message earlier than it was supposed to. 2) The counter of the number of messages sent by a port is now incremented only if a non-empty message is sent successfully. This prevents the port from becoming permanently congested if too many send attempts are unsuccessful because of congestion (or other reasons). It also removes the risk that empty hand- shaking messages used during connection setup might cause the port to report congestion earlier than it was supposed to. 3) The counter of the number of unacknowledged messages received by a port controlled by an internal TIPC service is now incremented only if the message is non-empty, in order to be consistent with the aforementioned changes. Signed-off-by:
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Allan Stephens authored
Eliminates a local iovec structure containing no data, which was previously used during the establishment of a topology service connection, since the same effect can be achieved by passing in a NULL pointer and an iovec length of zero. Signed-off-by:
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Allan Stephens authored
Ensures that a link reset or activate message has a "probe" field of zero. (This field is currently unused in these messages, but this could potentially change in future versions of TIPC.) Signed-off-by:
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Allan Stephens authored
Enhances TIPC's unicast and broadcast link code to update the transmit queue maximum size counter in a single place, namely the routine that adds messages to the queue. This ensures that the maximum size statistic reported for unicast links is completely accurate, rather than being partially based on statistical sampling. The changes to link.h are just documenting the roles of the variables. Signed-off-by:
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Allan Stephens authored
Modifies the initialization code for TIPC's topology service to avoid taking the spinlock protecting the subscriber list, since there is no need to do this. Signed-off-by:
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Allan Stephens authored
Allows the broadcast link to track the node that is requesting a retransmit in a new field dedicated to that purpose. This replaces the existing mechanism that (ab)uses an existing node structure linked list field to do the tracking. Signed-off-by:
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Allan Stephens authored
Remove all instances of legacy or proposed-but-not-implemented code that lives within an #if 0 ... #endif block. If some of it is needed in the future it can recovered out of history, but there is no need for it to clutter up the active code base. Signed-off-by:
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Allan Stephens authored
Corrects print statements that use %x to print pointer values to use %p instead, so that 64-bit pointer values are displayed correctly. Signed-off-by:
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Allan Stephens authored
Enhances TIPC link code to ignore an invalid link tolerance value contained in an incoming LINK_PROTOCOL message, rather than processing the value and potentially causing a divide-by-zero error. Also add a compile-time check that catches attempts to redefine TIPC's minimum link tolerance value in a manner that might result in the same divide-by-zero error at run-time. Signed-off-by:
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Allan Stephens authored
Reject TIPC configuration service messages without a full message header. Previously, an application that sent a message to the configuration service that was too short could cause the validation code to access an uninitialized field in the msghdr structure, resulting in a memory access exception. Signed-off-by:
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Allan Stephens authored
Eliminates a global variable that was previously used by TIPC's user registry to track the number of distinct applications using TIPC. Due to the recent elimination of the user registry this variable no longer serves any purpose and can be removed. Signed-off-by:
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Allan Stephens authored
Combines two distinct structures containing information about a TIPC bearer into a single structure. The structures were previously kept separate so that public information about a bearer could be made available to plug-in media types using TIPC's native API, while the remaining information was kept private for use by TIPC itself. However, now that the native API has been removed there is no longer any need for this arrangement. Since one of the structures was already embedded within the other, the change largely involves replacing instances of "publ.foo" with "foo". The changes do not otherwise alter the operation of TIPC bearers. Signed-off-by:
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Allan Stephens authored
Merge two distinct structures containing information about a TIPC port into a single structure. The structures were previously kept separate so that public information about a port could be made available to applications using TIPC's native API, while the remaining information was kept private for use by TIPC itself. However, now that the native API has been removed there is no longer any need for this somewhat confusing arrangement. Since one of the structures was already embedded within the other, the change largely involves replacing instances of "publ.foo" with "foo". The changes do not otherwise alter the operation of TIPC ports. Signed-off-by:
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Rajesh Borundia authored
Max rx queues and tx queues are governed by fimware. So driver should not validate these values. Signed-off-by:
Rajesh Borundia <rajesh.borundia@qlogic.com> Signed-off-by:
Amit Kumar Salecha <amit.salecha@qlogic.com> Signed-off-by:
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amit salecha authored
o Remove checks of 1 for auto_fw_reset module parameter. auto_fw_reset is of type int and can have value > 1. o Remove unnecessary #define for 1 Signed-off-by:
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Michał Mirosław authored
Use discrete setting ops for not updated drivers. This will not make them conform to full G/SFEATURES semantics, though. Signed-off-by:
Michał Mirosław <mirq-linux@rere.qmqm.pl> Signed-off-by:
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Michał Mirosław authored
Implement getting rx checksum state for not updated drivers. Signed-off-by:
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Michał Mirosław authored
Avoid "Features changed" message and ndo_set_features call on device registration caused by automatic enabling of GSO and GRO. Driver should have enabled hardware offloads it set in features, so the ndo_set_features() is not needed at registration time. Signed-off-by:
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Michał Mirosław authored
Fix netdev_update_features() messages on register time by moving the call further in register_netdevice(). When netdev->reg_state != NETREG_REGISTERED, netdev_name() returns "(unregistered netdevice)" even if the dev's name is already filled. Signed-off-by:
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Florian Fainelli authored
Signed-off-by:
Florian Fainelli <florian@openwrt.org> Signed-off-by:
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Shawn Lin authored
The original code does not work well when the number of mulitcast address to handle is greater than MCAST_MAX. It only enable promiscous mode instead of multicast hash table mode, so the hash table function will not be activated and all multicast frames will be recieved in this condition. This patch fixes the following issues with the r6040 NIC operating in multicast: 1) When the IFF_ALLMULTI flag is set, we should write 0xffff to the NIC hash table registers to make it process multicast traffic. 2) When the number of multicast address to handle is smaller than MCAST_MAX, we should use the NIC multicast registers MID1_{L,M,H}. 3) The hashing of the address was not correct, due to an invalid substraction (15 - (crc & 0x0f)) instead of (crc & 0x0f) and an incorrect crc algorithm (ether_crc_le) instead of (ether_crc). 4) If necessary, we should set HASH_EN flag in MCR0 to enable multicast hash table function. Reported-by:Marc Leclerc <marc-leclerc@signaturealpha.com> Tested-by:
Shawn Lin <shawn@dmp.com.tw> Signed-off-by:
Albert Chen <albert.chen@rdc.com.tw> Signed-off-by:
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stephen hemminger authored
gfp_t needs to be cast to integer. Signed-off-by:
Stephen Hemminger <shemminger@vyatta.com> Signed-off-by:
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stephen hemminger authored
* make qdisc_ops local * add sparse annotation about expected unlock/unlock in dump_class_stats * fix indentation Signed-off-by:
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stephen hemminger authored
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stephen hemminger authored
The dmaw_block is an enum and max_pay_load is u32. Therefore sparse gives warning about comparison of unsigned and signed value. Resolve by using min_t to force cast. Signed-off-by:
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stephen hemminger authored
Use __force to quiet sparse warnings for cases where the code is simulating user space pointers. Signed-off-by:
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Eric Dumazet authored
This is the Stochastic Fair Blue scheduler, based on work from : W. Feng, D. Kandlur, D. Saha, K. Shin. Blue: A New Class of Active Queue Management Algorithms. U. Michigan CSE-TR-387-99, April 1999. http://www.thefengs.com/wuchang/blue/CSE-TR-387-99.pdf This implementation is based on work done by Juliusz Chroboczek General SFB algorithm can be found in figure 14, page 15: B[l][n] : L x N array of bins (L levels, N bins per level) enqueue() Calculate hash function values h{0}, h{1}, .. h{L-1} Update bins at each level for i = 0 to L - 1 if (B[i][h{i}].qlen > bin_size) B[i][h{i}].p_mark += p_increment; else if (B[i][h{i}].qlen == 0) B[i][h{i}].p_mark -= p_decrement; p_min = min(B[0][h{0}].p_mark ... B[L-1][h{L-1}].p_mark); if (p_min == 1.0) ratelimit(); else mark/drop with probabilty p_min; I did the adaptation of Juliusz code to meet current kernel standards, and various changes to address previous comments : http://thread.gmane.org/gmane.linux.network/90225 http://thread.gmane.org/gmane.linux.network/90375 Default flow classifier is the rxhash introduced by RPS in 2.6.35, but we can use an external flow classifier if wanted. tc qdisc add dev $DEV parent 1:11 handle 11: \ est 0.5sec 2sec sfb limit 128 tc filter add dev $DEV protocol ip parent 11: handle 3 \ flow hash keys dst divisor 1024 Notes: 1) SFB default child qdisc is pfifo_fast. It can be changed by another qdisc but a child qdisc MUST not drop a packet previously queued. This is because SFB needs to handle a dequeued packet in order to maintain its virtual queue states. pfifo_head_drop or CHOKe should not be used. 2) ECN is enabled by default, unlike RED/CHOKe/GRED With help from Patrick McHardy & Andi Kleen Signed-off-by:
Eric Dumazet <eric.dumazet@gmail.com> CC: Juliusz Chroboczek <Juliusz.Chroboczek@pps.jussieu.fr> CC: Stephen Hemminger <shemminger@vyatta.com> CC: Patrick McHardy <kaber@trash.net> CC: Andi Kleen <andi@firstfloor.org> CC: John W. Linville <linville@tuxdriver.com> Signed-off-by:
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David S. Miller authored
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David S. Miller authored
Signed-off-by: -
David S. Miller authored
Signed-off-by: -
David S. Miller authored
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