- 29 Aug, 2013 10 commits
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Emil Tantilov authored
This patch is a partial reverse of: commit dfcc4615 Author: Jacob Keller <jacob.e.keller@intel.com> Date: Thu Nov 8 07:07:08 2012 +0000 ixgbe: ethtool ixgbe_diag_test cleanup Specifically forcing the laser before the link check can lead to inconsistent results because it does not guarantee that the link will be negotiated correctly. Such is the case when dual speed SFP+ module is connected to a gigabit link partner. Signed-off-by:
Emil Tantilov <emil.s.tantilov@intel.com> Tested-by:
Phil Schmitt <phillip.j.schmitt@intel.com> Signed-off-by:
Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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Don Skidmore authored
We were transversing the tx_ring with IXGBE_NUM_RX_QUEUES. Now this define happens to have the correct value but this is misleading and a change later could easily make this no longer true. I updated it to netdev->num_tx_queues like we use in ixgbe_get_strings(). Signed-off-by:
Don Skidmore <donald.c.skidmore@intel.com> Tested-by:
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Mark Rustad authored
This patch fixes the possible use of uninitialized memory by checking the return value on eeprom reads. These issues were identified by static analysis. In many cases error messages will be produced so that corrupted eeprom issues will be more visible. Signed-off-by:
Mark Rustad <mark.d.rustad@intel.com> Tested-by:
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Jacob Keller authored
This patch fixes an issue with the 82599 adapter where it can potentially keep link lights up when the adapter has gone down. The patch adds a function which ensures link is disabled, and calls this function when the adapter transitions to a down state. Signed-off-by:
Jacob Keller <jacob.e.keller@intel.com> Tested-by:
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Included changes: - set the protocol field in the skb structure according to the encapsulated payload - make the gateway component send a uevent in case of "gw client mode" de-selection - increment version number - minor code rearrangement Signed-off-by:David S. Miller <davem@davemloft.net>
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Dan Carpenter authored
This function checks the upper bound but it doesn't check for negative numbers: if (txq > QLCNIC_MAX_TX_RINGS) { I've solved this by making "txq" a u32 type. I chose that because ->tx_count in the ethtool_channels struct is a __u32. This bug was added in aa4a1f7d ('qlcnic: Enable Tx queue changes using ethtool for 82xx Series adapter.'). Signed-off-by:Dan Carpenter <dan.carpenter@oracle.com> Acked-by:
Himanshu Madhani <himanshu.madhani@qlogic.com> Signed-off-by:
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David S. Miller authored
Wei Liu says: ==================== xen-netback: switch to NAPI + kthread 1:1 model This series implements NAPI + kthread 1:1 model for Xen netback. This model - provides better scheduling fairness among vifs - is prerequisite for implementing multiqueue for Xen network driver The second patch has the real meat: - make use of NAPI to mitigate interrupt - kthreads are not bound to CPUs any more, so that we can take advantage of backend scheduler and trust it to do the right thing Benchmark is done on a Dell T3400 workstation with 4 cores, running 4 DomUs. Netserver runs in Dom0. DomUs do netperf to Dom0 with following command: /root/netperf -H Dom0 -fm -l120 IRQs are distributed to 4 cores by hand in the new model, while in the old model vifs are automatically distributed to 4 kthreads. * New model %Cpu0 : 0.5 us, 20.3 sy, 0.0 ni, 28.9 id, 0.0 wa, 0.0 hi, 24.4 si, 25.9 st %Cpu1 : 0.5 us, 17.8 sy, 0.0 ni, 28.8 id, 0.0 wa, 0.0 hi, 27.7 si, 25.1 st %Cpu2 : 0.5 us, 18.8 sy, 0.0 ni, 30.7 id, 0.0 wa, 0.0 hi, 22.9 si, 27.1 st %Cpu3 : 0.0 us, 20.1 sy, 0.0 ni, 30.4 id, 0.0 wa, 0.0 hi, 22.7 si, 26.8 st Throughputs: 2027.89 2025.95 2018.57 2016.23 aggregated: 8088.64 * Old model %Cpu0 : 0.5 us, 68.8 sy, 0.0 ni, 16.1 id, 0.5 wa, 0.0 hi, 2.8 si, 11.5 st %Cpu1 : 0.4 us, 45.1 sy, 0.0 ni, 31.1 id, 0.4 wa, 0.0 hi, 2.1 si, 20.9 st %Cpu2 : 0.9 us, 44.8 sy, 0.0 ni, 30.9 id, 0.0 wa, 0.0 hi, 1.3 si, 22.2 st %Cpu3 : 0.8 us, 46.4 sy, 0.0 ni, 28.3 id, 1.3 wa, 0.0 hi, 2.1 si, 21.1 st Throughputs: 1899.14 2280.43 1963.33 1893.47 aggregated: 8036.37 We can see that the impact is mainly on CPU usage. The new model moves processing from kthread to NAPI (software interrupt). ==================== Signed-off-by: -
Wei Liu authored
As we move to 1:1 model and melt xen_netbk and xenvif together, it would be better to use single prefix for all functions in xen-netback. Signed-off-by:
Wei Liu <wei.liu2@citrix.com> Acked-by:
Ian Campbell <ian.campbell@citrix.com> Signed-off-by:
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Wei Liu authored
This patch implements 1:1 model netback. NAPI and kthread are utilized to do the weight-lifting job: - NAPI is used for guest side TX (host side RX) - kthread is used for guest side RX (host side TX) Xenvif and xen_netbk are made into one structure to reduce code size. This model provides better scheduling fairness among vifs. It is also prerequisite for implementing multiqueue for Xen netback. Signed-off-by:
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Wei Liu authored
The data flow from DomU to DomU on the same host in current copying scheme with tracking facility: copy DomU --------> Dom0 DomU | ^ |____________________________| copy The page in Dom0 is a page with valid MFN. So we can always copy from page Dom0, thus removing the need for a tracking facility. copy copy DomU --------> Dom0 -------> DomU Simple iperf test shows no performance regression (obviously we copy twice either way): W/ tracking: ~5.3Gb/s W/o tracking: ~5.4Gb/s Signed-off-by:Matt Wilson <msw@amazon.com> Signed-off-by:
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- 28 Aug, 2013 7 commits
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Antonio Quartulli authored
Whenever the GW client mode is deselected, a DEL event has to be sent in order to tell userspace that the current gateway has been lost. Send the uevent on state change only if a gateway was currently selected. Reported-by:
Marek Lindner <lindner_marek@yahoo.de> Signed-off-by:
Antonio Quartulli <antonio@open-mesh.com> Signed-off-by:
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Simon Wunderlich authored
Signed-off-by:
Simon Wunderlich <siwu@hrz.tu-chemnitz.de> Signed-off-by:
Antonio Quartulli <ordex@autistici.org>
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Antonio Quartulli authored
Signed-off-by: -
Simon Wunderlich authored
The skb priority field may help the wireless driver to choose the right queue (e.g. WMM queues). This should be set in batman-adv, as this information is only available here. This patch adds support for IPv4/IPv6 DS fields and VLAN PCP. Note that only VLAN PCP is used if a VLAN header is present. Also initially set TC_PRIO_CONTROL only for self-generated packets, and keep the priority set by higher layers. Signed-off-by:
Simon Wunderlich <simon@open-mesh.com> Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/jesse/openvswitchDavid S. Miller authored
Jesse Gross says: ==================== A number of significant new features and optimizations for net-next/3.12. Highlights are: * "Megaflows", an optimization that allows userspace to specify which flow fields were used to compute the results of the flow lookup. This allows for a major reduction in flow setups (the major performance bottleneck in Open vSwitch) without reducing flexibility. * Converting netlink dump operations to use RCU, allowing for additional parallelism in userspace. * Matching and modifying SCTP protocol fields. ==================== Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== The following patchset contains Netfilter updates for your net-next tree, they are: * The new SYNPROXY target for iptables, including IPv4 and IPv6 support, from Patrick McHardy. * nf_defrag_ipv6.o should be only linked to nf_defrag_ipv6.ko, from Nathan Hintz. * Fix an old bug in REJECT, which replies with wrong MAC source address from the bridge, by Phil Oester. * Fix uninitialized helper variable in the expectation support over nfnetlink_queue, from Florian Westphal. ==================== Signed-off-by: -
git://git.kernel.org/pub/scm/linux/kernel/git/bwh/sfc-nextDavid S. Miller authored
Ben Hutchings says: ==================== More refactoring and cleanup, particularly around filter management. ==================== Signed-off-by:
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- 27 Aug, 2013 23 commits
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Florian Westphal authored
net/netfilter/nf_conntrack_netlink.c: In function 'ctnetlink_nfqueue_attach_expect': 'helper' may be used uninitialized in this function It was only initialized in if CTA_EXPECT_HELP_NAME attribute was present, it must be NULL otherwise. Problem added recently in bd077937 (netfilter: nfnetlink_queue: allow to attach expectations to conntracks). Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
Pablo Neira Ayuso <pablo@netfilter.org>
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Patrick McHardy authored
Add an IPv6 version of the SYNPROXY target. The main differences to the IPv4 version is routing and IP header construction. Signed-off-by:
Patrick McHardy <kaber@trash.net> Tested-by:
Martin Topholm <mph@one.com> Signed-off-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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Patrick McHardy authored
Extract the local TCP stack independant parts of tcp_v6_init_sequence() and cookie_v6_check() and export them for use by the upcoming IPv6 SYNPROXY target. Signed-off-by:
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Patrick McHardy authored
Add a SYNPROXY for netfilter. The code is split into two parts, the synproxy core with common functions and an address family specific target. The SYNPROXY receives the connection request from the client, responds with a SYN/ACK containing a SYN cookie and announcing a zero window and checks whether the final ACK from the client contains a valid cookie. It then establishes a connection to the original destination and, if successful, sends a window update to the client with the window size announced by the server. Support for timestamps, SACK, window scaling and MSS options can be statically configured as target parameters if the features of the server are known. If timestamps are used, the timestamp value sent back to the client in the SYN/ACK will be different from the real timestamp of the server. In order to now break PAWS, the timestamps are translated in the direction server->client. Signed-off-by:
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Patrick McHardy authored
Extract the local TCP stack independant parts of tcp_v4_init_sequence() and cookie_v4_check() and export them for use by the upcoming SYNPROXY target. Signed-off-by:
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Patrick McHardy authored
Split out sequence number adjustments from NAT and move them to the conntrack core to make them usable for SYN proxying. The sequence number adjustment information is moved to a seperate extend. The extend is added to new conntracks when a NAT mapping is set up for a connection using a helper. As a side effect, this saves 24 bytes per connection with NAT in the common case that a connection does not have a helper assigned. Signed-off-by:
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Nathan Hintz authored
'nf_defrag_ipv6' is built as a separate module; it shouldn't be included in the 'nf_conntrack_ipv6' module as well. Signed-off-by:
Nathan Hintz <nlhintz@hotmail.com> Signed-off-by:
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Phil Oester authored
As reported by Casper Gripenberg, in a bridged setup, using ip[6]t_REJECT with the tcp-reset option sends out reset packets with the src MAC address of the local bridge interface, instead of the MAC address of the intended destination. This causes some routers/firewalls to drop the reset packet as it appears to be spoofed. Fix this by bypassing ip[6]_local_out and setting the MAC of the sender in the tcp reset packet. This closes netfilter bugzilla #531. Signed-off-by:
Phil Oester <kernel@linuxace.com> Signed-off-by:
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Andy Zhou authored
Make sure the sw_flow_key structure and valid mask boundaries are always machine word aligned. Optimize the flow compare and mask operations using machine word size operations. This patch improves throughput on average by 15% when CPU is the bottleneck of forwarding packets. This patch is inspired by ideas and code from a patch submitted by Peter Klausler titled "replace memcmp() with specialized comparator". However, The original patch only optimizes for architectures support unaligned machine word access. This patch optimizes for all architectures. Signed-off-by:
Andy Zhou <azhou@nicira.com> Signed-off-by:
Jesse Gross <jesse@nicira.com>
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Steven La authored
Steven (cc-ed) noticed an imbalance in semaphore put/get for 82573-based NICs. Don't we need something like the following (untested) patch? Signed-off-by:
Steven La <sla@riverbed.com> Acked-by:
Arthur Kepner <akepner@riverbed.com> Tested-by:
Aaron Brown <aaron.f.brown@intel.com> Signed-off-by:
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Jeff Kirsher authored
Updates the documentation to the Intel wired LAN drivers. Signed-off-by:
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Rasesh Mody authored
This patch updates the firmware to address the thermal notification issue Signed-off-by:
Rasesh Mody <rmody@brocade.com> Signed-off-by:
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Andy King authored
This patch adds support for virtual IOMMU to the vmxnet3 module. We switch to DMA consistent mappings for anything we pass to the device. There were a few places where we already did this, but using pci_blah(); these have been fixed to use dma_blah(), along with all new occurrences where we've replaced kmalloc() and friends. Also fix two small bugs: 1) use after free of rq->buf_info in vmxnet3_rq_destroy() 2) a cpu_to_le32() that should have been a cpu_to_le64() Acked-by:
George Zhang <georgezhang@vmware.com> Acked-by:
Aditya Sarwade <asarwade@vmware.com> Signed-off-by:
Andy King <acking@vmware.com> Signed-off-by:
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Sathya Perla authored
Support is provided only for combined channels. When SR-IOV is not enabled, BE3 supports upto 16 channels and Lancer-R/SH-R support upto 32 channels. Signed-off-by:
Sathya Perla <sathya.perla@emulex.com> Signed-off-by:
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Sathya Perla authored
1) Move be_cmd_if_create() above queue create routines to allow TXQ creation (that requires if_handle) to be clubbed with TX-CQ creation. 2) Consolidate all queue create routines into be_setup_queues() Signed-off-by:
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Sathya Perla authored
Currently the IF_CREATE FW cmd is issued only *after* MCCQ is created as it was coded to only use MCCQ. By fixing this, cmd_if_create() can be called before MCCQ is created and the same routine for VF provisioning can be called after. This allows for consolidating all the queue create routines by moving the be_cmd_if_create() call above all queue create calls in be_setup(). Signed-off-by:
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Sathya Perla authored
1) use be_resources{} struct to query/store HW resource limits 2) The HW queue/resource limits for BE2/BE3 chips are mostly called out in driver as constants. Code to handle this is scattered across various places in be_setup(). Consolidate this code into BEx_get_resources(). For Lancer-R, Skyhawk-R, these limits are queried from FW. Signed-off-by: -
Vasundhara Volam authored
1) Parse PCIe descriptor for max-VFs supported by HW 2) Cleanup NIC descriptor parsing in get_func/profile_config() routines 3) Use common struct definitions for v0 and v1 versions of GET_FUNC_CONFIG Signed-off-by:
Vasundhara Volam <vasundhara.volam@emulex.com> Signed-off-by:
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Sathya Perla authored
EQ_CREATEv2 explicitly returns the msix-index associated with a EQ. For SH-R this is needed if EQs need to be deleted and re-created without resetting a function. Signed-off-by:
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Daniel Borkmann authored
Currently, the tcp_probe snooper can either filter packets by a given port (handed to the module via module parameter e.g. port=80) or lets all TCP traffic pass (port=0, default). When a port is specified, the port number is tested against the sk's source/destination port. Thus, if one of them matches, the information will be further processed for the log. As this is quite limited, allow for more advanced filtering possibilities which can facilitate debugging/analysis with the help of the tcp_probe snooper. Therefore, similarly as added to BPF machine in commit 7e75f93e ("pkt_sched: ingress socket filter by mark"), add the possibility to use skb->mark as a filter. If the mark is not being used otherwise, this allows ingress filtering by flow (e.g. in order to track updates from only a single flow, or a subset of all flows for a given port) and other things such as dynamic logging and reconfiguration without removing/re-inserting the tcp_probe module, etc. Simple example: insmod net/ipv4/tcp_probe.ko fwmark=8888 full=1 ... iptables -A INPUT -i eth4 -t mangle -p tcp --dport 22 \ --sport 60952 -j MARK --set-mark 8888 [... sampling interval ...] iptables -D INPUT -i eth4 -t mangle -p tcp --dport 22 \ --sport 60952 -j MARK --set-mark 8888 The current option to filter by a given port is still being preserved. A similar approach could be done for the sctp_probe module as a follow-up. Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Sucheta Chakraborty authored
Signed-off-by:
Sucheta Chakraborty <sucheta.chakraborty@qlogic.com> Signed-off-by:
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Sucheta Chakraborty authored
o Adapter and driver supports only CEE dcbnl ops. Only GET callbacks within dcbnl ops are supported currently. Signed-off-by:
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Sucheta Chakraborty authored
o Adapter sends Asynchronous Event Notifications to the driver when there are changes in the switch or adapter DCBX configuration. AEN handler updates the driver DCBX parameters. Signed-off-by:
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