- 07 Feb, 2016 40 commits
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David S. Miller authored
Nikolay Borisov says: ==================== Namespaceify more of the tcp sysctl knobs This patch series continues making more of the tcp-related sysctl knobs be per net-namespace. Most of these apply per socket and have global defaults so should be safe and I don't expect any breakages. Having those per net-namespace is useful when multiple containers are hosted and it is required to tune the tcp settings for each independently of the host node. I've split the patches to be per-sysctl but after the review if the outcome is positive I'm happy to either send it in one big blob or just. ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Nikolay Borisov authored
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Nikolay Borisov <kernel@kyup.com> Signed-off-by:
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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Nikolay Borisov authored
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git://git.open-mesh.org/linux-mergeDavid S. Miller authored
Antonio Quartulli says: ==================== This batch of patches includes a number of corrections and improvements for our kernel-doc. These changes also make sure that our doc is now properly processed by the kernel-doc parsing tool. Other than that you have a patch updating all the copyright lines to 2016 and another patch switching the URLs in our readme, Kconfig and MAINTAINERS file from "http" to "https". Both by Sven Eckelmann. ==================== Signed-off-by: -
David S. Miller authored
Nikolay Aleksandrov says: ==================== virtio_net: add ethtool get/set settings support Patch 1 adds ethtool speed/duplex validation functions which check if the value is defined. Patch 2 adds support for ethtool (get|set)_settings and uses the validation functions to check the user-supplied values. v2: split in 2 patches to allow everyone to make use of the validation functions and allow virtio_net devices to be half duplex v3: added a check to return error if the user tries to change anything else besides duplex/speed as per Michael's comment v4: Set port type to PORT_OTHER v5: clear diff1.port (ignore port) when checking for changes since we set it now and ethtool uses it in the set request Sorry about the pointless iterations, should've all covered now. ==================== Signed-off-by: -
Nikolay Aleksandrov authored
This patch allows the user to set and retrieve speed and duplex of the virtio_net device via ethtool. Having this functionality is very helpful for simulating different environments and also enables the virtio_net device to participate in operations where proper speed and duplex are required (e.g. currently bonding lacp mode requires full duplex). Custom speed and duplex are not allowed, the user-supplied settings are validated before applying. Example: $ ethtool eth1 Settings for eth1: ... Speed: Unknown! Duplex: Unknown! (255) $ ethtool -s eth1 speed 1000 duplex full $ ethtool eth1 Settings for eth1: ... Speed: 1000Mb/s Duplex: Full Based on a patch by Roopa Prabhu. Signed-off-by:
Nikolay Aleksandrov <nikolay@cumulusnetworks.com> Signed-off-by:
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Nikolay Aleksandrov authored
Add functions which check if the speed/duplex are defined. Signed-off-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
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David S. Miller authored
Sowmini Varadhan says: ==================== sunvnet: perf tracepoint hooks Added some perf tracepoints to help track and debug sunvnet descriptor state at run-time. ==================== Signed-off-by: -
Sowmini Varadhan authored
Use sunvnet perf trace macros to monitor LDC message exchange state. Signed-off-by:
Sowmini Varadhan <sowmini.varadhan@oracle.com> Signed-off-by:
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Sowmini Varadhan authored
Add perf event macros for support of tracing and instrumentation of LDC state machine Signed-off-by:
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David S. Miller authored
Yuchung Cheng says: ==================== tcp: congestion control refactoring This patch set refactors the sequence of congestion control, loss recovery, and transmission logic in TCP ack processing. The design goal is to decouple and sequence them in the following order: 0. ACK accounting: free or tag sent packets [unchanged] 1. loss recovery: identify lost/ecn packets and update congestion state 2. congestion control: up/down cwnd and pacing rate based on (1) 3. transmission: send new or retransmit old based on (1) and (2) This refactoring makes the cwnd changes more clear because it's done in one place. The packet accounting is also more robust especially for connections that do not support SACK. Patch 1-4 and 6 are refactoring and patch 5 improves TCP performance under reordering. ==================== Signed-off-by: -
Yuchung Cheng authored
Refactor and consolidate cwnd and rate updates into a new function tcp_cong_control(). Signed-off-by:
Yuchung Cheng <ycheng@google.com> Signed-off-by:
Neal Cardwell <ncardwell@google.com> Signed-off-by:
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Yuchung Cheng authored
This change enables congestion control to update cwnd based on not only packet cumulatively acked but also packets delivered out-of-order. This makes congestion control robust against packet reordering because it may raise cwnd as long as packets are being delivered once reordering has been detected (i.e., it only cares the amount of packets delivered, not the ordering among them). Signed-off-by:
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Yuchung Cheng authored
A small refactoring that gets number of packets cumulatively acked from tcp_clean_rtx_queue() directly. Signed-off-by:
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Yuchung Cheng authored
This patch changes the accounting of how many packets are newly acked or sacked when the sender receives an ACK. The current approach basically computes newly_acked_sacked = (prior_packets - prior_sacked) - (tp->packets_out - tp->sacked_out) where prior_packets and prior_sacked out are snapshot at the beginning of the ACK processing. The new approach tracks the delivery information via a new TCP state variable "delivered" which monotically increases as new packets are delivered in order or out-of-order. The reason for this change is that the current approach is brittle that produces negative or inaccurate estimate. 1) For non-SACK connections, an ACK that advances the SND.UNA could reset the DUPACK counters (tp->sacked_out) in tcp_process_loss() or tcp_fastretrans_alert(). This inflates the inflight suddenly and causes under-estimate or even negative estimate. Here is a real example: before after (processing ACK) packets_out 75 73 sacked_out 23 0 ca state Loss Open The old approach computes (75-23) - (73 - 0) = -21 delivered while the new approach computes 1 delivered since it considers the 2nd-24th packets are delivered OOO. 2) MSS change would re-count packets_out and sacked_out so the estimate is in-accurate and can even become negative. E.g., the inflight is doubled when MSS is halved. 3) Spurious retransmission signaled by DSACK is not accounted The new approach is simpler and more robust. For SACK connections, tp->delivered increments as packets are being acked or sacked in SACK and ACK processing. For non-sack connections, it's done in tcp_remove_reno_sacks() and tcp_add_reno_sack(). When an ACK advances the SND.UNA, tp->delivered is incremented by the number of packets ACKed (less the current number of DUPACKs received plus one packet hole). Upon receiving a DUPACK, tp->delivered is incremented assuming one out-of-order packet is delivered. Upon receiving a DSACK, tp->delivered is incremtened assuming one retransmission is delivered in tcp_sacktag_write_queue(). Signed-off-by: -
Yuchung Cheng authored
Currently the cwnd is reduced and increased in various different places. The reduction happens in various places in the recovery state processing (tcp_fastretrans_alert) while the increase happens afterward. A better sequence is to identify lost packets and update the congestion control state (icsk_ca_state) first. Then base on the new state, up/down the cwnd in one central place. It's more clear to reason cwnd changes. Signed-off-by:
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Yuchung Cheng authored
The retransmission and F-RTO transmission currently happen inside recovery state processing (tcp_fastretrans_alert) but before congestion control. This refactoring moves the logic after both s.t. we can determine how much to send (cwnd) before deciding what to send. Signed-off-by:
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David Herrmann authored
Remove a write-only stack variable from unix_attach_fds(). This is a left-over from the security fix in: commit 712f4aad Author: willy tarreau <w@1wt.eu> Date: Sun Jan 10 07:54:56 2016 +0100 unix: properly account for FDs passed over unix sockets Signed-off-by:David Herrmann <dh.herrmann@gmail.com> Acked-by:
Hannes Frederic Sowa <hannes@stressinduktion.org> Signed-off-by:
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David Ahern authored
Allows userspace to have direct access to VRF table association versus looking up master device and its table. Signed-off-by:
David Ahern <dsa@cumulusnetworks.com> Signed-off-by:
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Paul Durrant authored
My recent patch to the Xen Project documents a protocol for 'dynamic multicast control' in netif.h. This extends the previous multicast control protocol to not require a shared ring reconnection to turn the feature off. Instead the backend watches the "request-multicast-control" key in xenstore and turns the feature off if the key value is written to zero. This patch adds support for dynamic multicast control in xen-netback. Signed-off-by:
Paul Durrant <paul.durrant@citrix.com> Cc: Ian Campbell <ian.campbell@citrix.com> Cc: Wei Liu <wei.liu2@citrix.com> Acked-by:
Wei Liu <wei.liu2@citrix.com> Signed-off-by:
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David S. Miller authored
Sriharsha Basavapatna says: ==================== be2net patch-set v2 changes: Patch-4: Changed a tab to space in be.h Patches-6,7,8: Updated commit log summary line: benet --> be2net Hi David, The following patch set contains a few non-critical bug fixes. Please consider applying this to the net-next tree. Thanks. Patch-1 fixes be_set_phys_id() ethtool function to return an error code. Patch-2 fixes a warning when some commands fail for VFs. Patch-3 fixes be_vlan_rem_vid() to verify vlan being removed is in the list. Patch-4 improves SRIOV queue distribution logic. Patch-5 avoids running self test on VFs. Patch-6 fixes error recovery in Lancer to clean up after moving to ready state. Patch-7 adds retry logic to error recovery in case of recovery failures Patch-8 fixes time interval used in eq delay computation routine ==================== Signed-off-by: -
Padmanabh Ratnakar authored
Interrupt moderation parameters need to be recalculated only after a time interval of 1 ms. Interval calculation is wrong when there is a rollover of jiffies. Using recommended way of interval calculation using jiffies to fix this. Signed-off-by:
Padmanabh Ratnakar <padmanabh.ratnakar@broadcom.com> Signed-off-by:
Sriharsha Basavapatna <sriharsha.basavapatna@broadcom.com> Signed-off-by:
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Padmanabh Ratnakar authored
Retry error recovery MAX_ERR_RECOVERY_RETRY_COUNT times in case of failure during error recovery. Signed-off-by:
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Padmanabh Ratnakar authored
After error is detected, wait for adapter to move to ready state before destroying queues and cleanup of other resources. Also skip performing any cleanup for non-Lancer chips and move debug messages to correct routine. Signed-off-by:
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Somnath Kotur authored
The CMD_SUBSYSTEM_LOWLEVEL cmds need DEV_CFG Privilege to run which VFs don't have by default. Self-tests need to be issued only for PFs. Signed-off-by:
Somnath Kotur <somnath.kotur@broadcom.com> Signed-off-by:
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Sriharsha Basavapatna authored
The SRIOV resource distribution logic for RX/TX queue counts is not optimal when a small number of VFs are enabled. It does not take into account the VF's EQ count while computing the queue counts. Because of this, the VF gets a large number of queues, though it doesn't have sufficient EQs, resulting in wasted queue resources. And the PF gets a smaller share of queues though it has more EQs. Fix this by capping the VF queue count at its EQ count. Signed-off-by:
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Sriharsha Basavapatna authored
The driver decrements its vlan count without checking if it is really present in its list. This results in an invalid vlan count and impacts subsequent vlan add/rem ops. The function be_vlan_rem_vid() should be updated to fix this. Signed-off-by:
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Suresh Reddy authored
The driver currently logs the message "VF is not privileged to issue opcode" by checking only the base_status field for UNAUTHORIZED_REQUEST. Add check to look for INSUFFICIENT_PRIVILEGES in the additional status field also as not all cmds fail with that base status. Signed-off-by:
Suresh Reddy <suresh.reddy@broadcom.com> Signed-off-by:
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Suresh Reddy authored
be_set_phys_id() returns 0 to ethtool when the command fails in the FW. This patch fixes the set_phys_id() to return -EIO in case the FW cmd fails. Signed-off-by:
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David S. Miller authored
Jiri Benc says: ==================== vxlan: cleanup headers and tx path This is first part of vxlan cleanup. It makes vxlan.h better organized and removes code duplication in the tx path. There's no change in functionality. This is in preparation for VXLAN-GPE support. Other sets will follow with cleanup of rx path, modifications of vxlan interface setup and cleanup/modification of fdb handling. The goal of these patchsets is to consolidate VXLAN extension handling (right now it's scattered all around the code) and allow vxlan to operate in L3 mode (i.e. without inner Ethernet headers). The full picture (all 30 patches) can be seen at: https://github.com/jbenc/linux-vxlan/commits/master Changelog: v2: added patch 5/6, fixing the udp sum problem spotted by Paolo Abeni ==================== Signed-off-by:
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Jiri Benc authored
There's a lot of code duplication. Factor out the duplicate code to a new function shared between IPv4 and IPv6 xmit path. Signed-off-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
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Jiri Benc authored
The flag for tx checksumming for tunneling over IPv4 and IPv6 is different. Decide whether to do tx checksumming in vxlan_xmit_one and pass it on as a separate flag. This will allow for tx path consolidation in the next patch. Unfortunately, gcc is not clever enough to see that udp_sum is always initialized and gives an uninitialized variable warning. Set it to false to silence the warning. Signed-off-by:
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Jiri Benc authored
The code for output route lookup is duplicated for ndo_start_xmit and ndo_fill_metadata_dst. Move it to a common function. Signed-off-by:
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