- 25 Jun, 2016 27 commits
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David S. Miller authored
Eric Dumazet says: ==================== net_sched: bulk dequeue and deferred drops First patch adds an additional parameter to ->enqueue() qdisc method so that drops can be done outside of critical section (after locks are released). Then fq_codel can have a small optimization to reduce number of cache lines misses during a drop event (possibly accumulating hundreds of packets to be freed). A small htb change exports the backlog in class dumps. Final patch adds bulk dequeue to qdiscs that were lacking this feature. This series brings a nice qdisc performance increase (more than 80 % in some cases). ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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Eric Dumazet authored
When qdisc bulk dequeue was added in linux-3.18 (commit 5772e9a3 "qdisc: bulk dequeue support for qdiscs with TCQ_F_ONETXQUEUE"), it was constrained to some specific qdiscs. With some extra care, we can extend this to all qdiscs, so that typical traffic shaping solutions can benefit from small batches (8 packets in this patch). For example, HTB is often used on some multi queue device. And bonding/team are multi queue devices... Idea is to bulk-dequeue packets mapping to the same transmit queue. This brings between 35 and 80 % performance increase in HTB setup under pressure on a bonding setup : 1) NUMA node contention : 610,000 pps -> 1,110,000 pps 2) No node contention : 1,380,000 pps -> 1,930,000 pps Now we should work to add batches on the enqueue() side ;) Signed-off-by:
Eric Dumazet <edumazet@google.com> Cc: John Fastabend <john.r.fastabend@intel.com> Cc: Jesper Dangaard Brouer <brouer@redhat.com> Cc: Hannes Frederic Sowa <hannes@stressinduktion.org> Cc: Florian Westphal <fw@strlen.de> Cc: Daniel Borkmann <daniel@iogearbox.net> Acked-by:
Jesper Dangaard Brouer <brouer@redhat.com> Signed-off-by:
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Eric Dumazet authored
We already get child qdisc qlen, we also can get its backlog so that class dumps can report it. Also replace qstats by a single drop counter, but move it in a separate cache line so that drops do not dirty useful cache lines. Tested: $ tc -s cl sh dev eth0 class htb 1:1 root leaf 3: prio 0 rate 1Gbit ceil 1Gbit burst 500000b cburst 500000b Sent 2183346912 bytes 9021815 pkt (dropped 2340774, overlimits 0 requeues 0) rate 1001Mbit 517543pps backlog 120758b 499p requeues 0 lended: 9021770 borrowed: 0 giants: 0 tokens: 9 ctokens: 9 Signed-off-by:
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Eric Dumazet authored
Now we defer skb drops, it makes sense to keep a copy of skb->truesize in struct codel_skb_cb to avoid one cache line miss per dropped skb in fq_codel_drop(), to reduce latencies a bit further. Signed-off-by:
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Eric Dumazet authored
Qdisc performance suffers when packets are dropped at enqueue() time because drops (kfree_skb()) are done while qdisc lock is held, delaying a dequeue() draining the queue. Nominal throughput can be reduced by 50 % when this happens, at a time we would like the dequeue() to proceed as fast as possible. Even FQ is vulnerable to this problem, while one of FQ goals was to provide some flow isolation. This patch adds a 'struct sk_buff **to_free' parameter to all qdisc->enqueue(), and in qdisc_drop() helper. I measured a performance increase of up to 12 %, but this patch is a prereq so that future batches in enqueue() can fly. Signed-off-by:
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David S. Miller authored
Raghu Vatsavayi says: ==================== liquidio: updates and bug fixes Please consider following patch series for liquidio bug fixes and updates on top of net-next. Following patches should be applied in the following order as some of them depend on earlier patches in the series. ==================== Signed-off-by: -
Raghu Vatsavayi authored
Adds support for ddr_timeout during device init. Signed-off-by:
Derek Chickles <derek.chickles@caviumnetworks.com> Signed-off-by:
Satanand Burla <satananda.burla@caviumnetworks.com> Signed-off-by:
Felix Manlunas <felix.manlunas@caviumnetworks.com> Signed-off-by:
Raghu Vatsavayi <raghu.vatsavayi@caviumnetworks.com> Signed-off-by:
Raghu Vatsavayi <rvatsavayi@caviumnetworks.com> Signed-off-by:
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Raghu Vatsavayi authored
This patch adds support for private flags for the driver. Signed-off-by:
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Raghu Vatsavayi authored
This patch has minor changes for proper ptp info retreival. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds support for host driver support for new Xaui interfaces. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds extensive support of statistics for data path, control path and firmware. Signed-off-by:
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Raghu Vatsavayi authored
This patch has new tx/rx interrupt moderation defaults of count/timer for better throughput and utilisation. Signed-off-by:
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Raghu Vatsavayi authored
This patch resolves the order of chip reset while destroying the resources by postoponing soft reset in destroy resources function until all queues are removed properly. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds new state so that the ctrl packets are not sent to firmware during unload time and only rx packets are allowed. Signed-off-by:
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Raghu Vatsavayi authored
This patch has firmware image related changes for: firmware release upon failure, support latest firmware version and firmware download in 4MB chunks. Signed-off-by:
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Raghu Vatsavayi authored
This Patch adds tx buffer handling to Napi along with RX traffic. Also separate spinlocks are introduced for handling iq posting and buffer reclaim so that tx path and tx interrupt do not compete against each other. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds supports for Vlan filtering for liquidio driver. Signed-off-by:
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Raghu Vatsavayi authored
This patch adds support for vlan offloads for the driver and receive header structures are also modified appropriately. Also requestID will not be used in reveive header any more. Signed-off-by:
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Raghu Vatsavayi authored
This patch increases the limits of soft command buffer size and num command buffers. This patch also has changes for queue macros and limit related changes for new chips. Signed-off-by:
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Hariprasad Shenai authored
The issue comes when there are multiple threads attempting to use the mailbox facility at the same time. The issue is the for the Virtual Function Driver, the only way to get the Virtual Interface statistics is to issue mailbox commands to ask the firmware for the VI Stats. And, because the VI Stats command can only retrieve a smallish number of stats per mailbox command, we have to issue three mailbox commands in quick succession. When ethtool or netstat command to get interface stats and interface up/down is run in a loop for every 0.1 sec, we observed mailbox collisions. And out of the two commands one would fail with the present code, since we don't queue the second command. To overcome the above issue, added a queue to access the mailbox. Whenever a mailbox command is issued add it to the queue. If its at the head issue the mailbox command, else wait for the existing command to complete. Usually command takes less than a milli-second to complete. Also timeout from the loop, if the command under execution takes long time to run. In reality, the number of mailbox access collisions is going to be very rare since no one runs such abusive script. Signed-off-by:
Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by:
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William Tu authored
Signed-off-by:
William Tu <u9012063@gmail.com> Acked-by:
Alexei Starovoitov <ast@kernel.org> Signed-off-by:
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Philippe Reynes authored
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by:Philippe Reynes <tremyfr@gmail.com> Signed-off-by:
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Philippe Reynes authored
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by:
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Jarno Rajahalme authored
Only set conntrack mark or labels when the commit flag is specified. This makes sure we can not set them before the connection has been persisted, as in that case the mark and labels would be lost in an event of an userspace upcall. OVS userspace already requires the commit flag to accept setting ct_mark and/or ct_labels. Validate for this in the kernel API. Signed-off-by:
Jarno Rajahalme <jarno@ovn.org> Signed-off-by:
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Jarno Rajahalme authored
Set conntrack mark and labels right before committing so that the initial conntrack NEW event has the mark and labels. Signed-off-by:
Joe Stringer <joe@ovn.org> Signed-off-by:
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Vivien Didelot authored
With the upcoming support for cross-chip operations, it will be hard to distinguish portions of code supporting a single-chip or a switch fabric of interconnected chips. Make the code clearer now, by renaming the mv88e6xxx_priv_state chip structure to mv88e6xxx_chip. This patch brings no functional changes. Signed-off-by:
Vivien Didelot <vivien.didelot@savoirfairelinux.com> Signed-off-by:
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Vivien Didelot authored
With the upcoming support for cross-chip operations and other mv88e6xxx enhancements, new files will be added. Similarly to mlxsw or b53, move mv88e6xxx files into their own folder. In the meantime, update the MAINTAINERS entry to please checkpatch.pl, by replacing the invalid 88E6352 entry with 88E6XXX, maintained by Andrew and myself. Signed-off-by:
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- 23 Jun, 2016 8 commits
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David S. Miller authored
Sudarsana Reddy Kalluru says: ==================== qed*: coalesce parameters config support. The patch series adds the support for config/read of the adapter coalesce parameters. Patch (1) adds the qed infrastructure/APIs for the support and patch (2) adds the driver support for following ethtool commands: ethtool -c|--show-coalesce ethX ethtool -C|--coalesce ethX [rx-usecs N] [tx-usecs N] ==================== Signed-off-by: -
Sudarsana Reddy Kalluru authored
Signed-off-by:
Sudarsana Reddy Kalluru <sudarsana.kalluru@qlogic.com> Signed-off-by:
Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by:
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Sudarsana Reddy Kalluru authored
This patch adds support for configuring the device tx/rx coalescing timeout values in the order of micro seconds. It also adds APIs for upper layer drivers for reading/updating the coalescing values. Signed-off-by:
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David S. Miller authored
Merge tag 'wireless-drivers-next-for-davem-2016-06-21' of git://git.kernel.org/pub/scm/linux/kernel/git/kvalo/wireless-drivers-next Kalle Valo says: ==================== wireless-drivers patches for 4.8 Major changes: ath10k * enable btcoex support without restarting firmware * enable ipq4019 support using AHB bus * add QCA9887 chipset support * retrieve calibration data from EEPROM, currently only for QCA9887 wil6210 * add pm_notify handling brcmfmac * add support for the PCIE devices 43525 and 43465 ==================== Signed-off-by:
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Rana Shahout authored
This patch adds support for reading and updating priority flow control (PFC) attributes in the driver via netlink. Signed-off-by:
Rana Shahout <ranas@mellanox.com> Signed-off-by:
Eran Ben Elisha <eranbe@mellanox.com> Signed-off-by:
Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by:
Tariq Toukan <tariqt@mellanox.com> Signed-off-by:
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Florian Fainelli authored
Due to a typo we would always be using the MIB counter width of the first element of the counter array instead of the current element, and we would always be accessing the register statistics with a 64-bits read, while some could be 32-bits. This got unnoticed in testing with MDIO and SRAB which tolerate doing this, but testing with the SPI bus revealed bogus values being returned. Fix this by using the proper iterator here. Fixes: 967dd82f ("net: dsa: b53: Add support for Broadcom RoboSwitch") Reported-by:
Jonas Gorski <jogo@openwrt.org> Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Reviewed-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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Ben Hutchings authored
The fixed_phy driver doesn't have to be built-in, and it's important that of_mdio supports it even if it's a module. Signed-off-by:
Ben Hutchings <ben.hutchings@codethink.co.uk> Acked-by:
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Ben Hutchings authored
Dual MAC devices don't necessarily have both MACs wired up, so ignore those that are disabled. Signed-off-by:
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- 22 Jun, 2016 5 commits
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William Tu authored
The commit f2a4d086 ("openvswitch: Add packet truncation support.") introduces packet truncation before sending to userspace upcall receiver. This patch passes up the skb->len before truncation so that the upcall receiver knows the original packet size. Potentially this will be used by sFlow, where OVS translates sFlow config header=N to a sample action, truncating packet to N byte in kernel datapath. Thus, only N bytes instead of full-packet size is copied from kernel to userspace, saving the kernel-to-userspace bandwidth. Signed-off-by:
Pravin B Shelar <pshelar@ovn.org> Signed-off-by:
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Philippe Reynes authored
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: -
Philippe Reynes authored
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by:
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Philippe Reynes authored
There are two generics functions phy_ethtool_{get|set}_link_ksettings, so we can use them instead of defining the same code in the driver. Signed-off-by: -
Philippe Reynes authored
The private structure contain a pointer to phydev, but the structure net_device already contain such pointer. So we can remove the pointer phydev in the private structure, and update the driver to use the one contained in struct net_device. Signed-off-by:
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