- 06 Oct, 2014 40 commits
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Mahesh Bandewar authored
Earlier change to use usable slave array for TLB mode had an additional performance advantage. So extending the same logic to all other modes that use xmit-hash for slave selection (viz 802.3AD, and XOR modes). Also consolidating this with the earlier TLB change. The main idea is to build the usable slaves array in the control path and use that array for slave selection during xmit operation. Measured performance in a setup with a bond of 4x1G NICs with 200 instances of netperf for the modes involved (3ad, xor, tlb) cmd: netperf -t TCP_RR -H <TargetHost> -l 60 -s 5 Mode TPS-Before TPS-After 802.3ad : 468,694 493,101 TLB (lb=0): 392,583 392,965 XOR : 475,696 484,517 Signed-off-by:
Mahesh Bandewar <maheshb@google.com> Signed-off-by:
Nikolay Aleksandrov <nikolay@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Mahesh Bandewar authored
It's a trivial fix to display xmit_hash_policy for this new TLB mode since it uses transmit-hash-poilicy as part of bonding-master info (/proc/net/bonding/<bonding-interface). Signed-off-by:
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David S. Miller authored
Amir Vadai says: ==================== net/mlx4_en: Optimizations to TX flow This patchset contains optimizations to TX flow in mlx4_en driver. It also introduce setting/getting tx copybreak, to enable controlling inline threshold dynamically. TX flow optimizations was authored and posted to the mailing list by Eric Dumazet [1] as a single patch. I splitted this patch to smaller patches, Reviewed it and tested. Changed from original patch: - s/iowrite32be/iowrite32/, since ring->doorbell_qpn is stored as be32 The tx copybreak patch was also suggested by Eric Dumazet, and was edited and reviewed by me. User space patch will be sent after kernel code is ready. I am sending this patchset now since the merge window is near and don't want to miss it. More work need to do: - Disable BF when xmit_more is in use - Make TSO use xmit_more too. Maybe by splitting small TSO packets in the driver itself, to avoid extra cpu/memory costs of GSO before the driver - Fix mlx4_en_xmit buggy handling of queue full in the middle of a burst partially posted to send queue using xmit_more Eric, I edited the patches to have you as the Author and the first signed-off-by. I hope it is ok with you (I wasn't sure if it is ok to sign by you), anyway all the credit to those changes should go to you. Patchset was tested and applied over commit 1e203c1a "(net: sched: suspicious RCU usage in qdisc_watchdog") [1] - https://patchwork.ozlabs.org/patch/394256/ ==================== Signed-off-by:
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Eric Dumazet authored
Instead of setting inline threshold using module parameter only on driver load, use set_tunable() to set it dynamically. No need to store the threshold per ring, using instead the netdev global priv->prof->inline_thold Initial value still is set using the module parameter, therefore backward compatability is kept. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Amir Vadai <amirv@mellanox.com> Signed-off-by:
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Eric Dumazet authored
Use new ethtool [sg]et_tunable() to set tx_copybread (inline threshold) Signed-off-by:
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Eric Dumazet authored
Reorganize code to call is_inline() once, so compiler can inline it Signed-off-by:
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Eric Dumazet authored
Properly clear tx_info->ts_requested Signed-off-by:
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Eric Dumazet authored
Access skb_headlen() once in tx flow Signed-off-by:
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Eric Dumazet authored
Acces skb_shinfo(skb) once in tx flow. Also, rename @i variable to @i_frag to avoid confusion, as the "goto tx_drop_unmap;" relied on this @i variable. Signed-off-by:
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Eric Dumazet authored
Signed-off-by:
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Eric Dumazet authored
mlx4_en_process_tx_cq() carefully fetches and writes ring->last_nr_txbb and ring->cons only one time to avoid false sharing Signed-off-by:
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Eric Dumazet authored
mlx4_en_free_tx_desc() uses a prefetchw(&skb->users) to speed up consume_skb() prefetchw(&ring->tx_queue->dql) to speed up BQL update Signed-off-by:
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Eric Dumazet authored
Add frag0_dma/frag0_byte_count into mlx4_en_tx_info to avoid a cache line miss in TX completion for frames having one dma element. (We avoid reading back the tx descriptor) Note this could be extended to 2/3 dma elements later, as we have free room in mlx4_en_tx_info Also, mlx4_en_free_tx_desc() no longer accesses skb_shinfo(). We use a new nr_maps fields in mlx4_en_tx_info to avoid 2 or 3 cache misses. Signed-off-by:
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Eric Dumazet authored
Try to allocate using kmalloc_node() first, only on failure use vmalloc() Signed-off-by:
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Eric Dumazet authored
- doorbell_qpn is stored in the cpu_to_be32() way to avoid bswap() in fast path. - mdev->mr.key stored in ring->mr_key to also avoid bswap() and access to cold cache line. Signed-off-by:
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Eric Dumazet authored
Reorganize struct mlx4_en_tx_ring to have: - One cache line containing last_nr_txbb & cons & wake_queue, used by tx completion. - One cache line containing fields dirtied by mlx4_en_xmit() - Following part is read mostly and shared by cpus. Align struct mlx4_en_tx_info to a cache line Signed-off-by:
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Eric Dumazet authored
- Remove unused variable ring->poll_cnt - No need to set some fields if using blueflame - Add missing const's - Use unlikely - Remove unneeded new line - Make some comments more precise - struct mlx4_bf @offset field reduced to unsigned int to save space Signed-off-by:
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Eric Dumazet authored
Standard qdisc API to setup a timer implies an atomic operation on every packet dequeue : qdisc_unthrottled() It turns out this is not really needed for FQ, as FQ has no concept of global qdisc throttling, being a qdisc handling many different flows, some of them can be throttled, while others are not. Fix is straightforward : add a 'bool throttle' to qdisc_watchdog_schedule_ns(), and remove calls to qdisc_unthrottled() in sch_fq. Signed-off-by:
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Fabio Estevam authored
When fec_enet_alloc_buffers() fails we should better undo the previous actions, which consists of: disabling the FEC clocks and putting the FEC pins into inactive state. The error path for fec_enet_mii_probe() is kept unchanged. Signed-off-by:
Fabio Estevam <fabio.estevam@freescale.com> Signed-off-by:
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Chen Gang authored
MDIO_BCM_UNIMAC needs HAS_IOMEM, so depend on it, the related error ( with allmodconfig under um): MODPOST 1205 modules ERROR: "devm_ioremap" [drivers/net/phy/mdio-bcm-unimac.ko] undefined! Signed-off-by:Chen Gang <gang.chen.5i5j@gmail.com> Signed-off-by:
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Eric Dumazet authored
Its unfortunate we have to walk again skb list to find the tail after segmentation, even if data is probably hot in cpu caches. skb_segment() can store the tail of the list into segs->prev, and validate_xmit_skb_list() can immediately get the tail. Signed-off-by:
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David S. Miller authored
Andy Zhou says: ==================== Add Geneve tunnel protocol support This patch series adds kernel support for Geneve (Generic Network Virtualization Encapsulation) based on Geneve IETF draft: http://www.ietf.org/id/draft-gross-geneve-01.txt Patch 1 implements Geneve tunneling protocol driver Patch 2-6 adds openvswitch support for creating and using Geneve tunnels by OVS user space. v1->v2: Style fixes: use tab instead space for Kconfig Patch 2-6 are reviewed by Pravin Shetty, add him to acked-by Patch 6 was reviewed by Thomas Graf when commiting to openvswitch.org, add him to acked-by. ==================== Signed-off-by:
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Jesse Gross authored
The Openvswitch implementation is completely agnostic to the options that are in use and can handle newly defined options without further work. It does this by simply matching on a byte array of options and allowing userspace to setup flows on this array. Signed-off-by:
Jesse Gross <jesse@nicira.com> Singed-off-by:
Ansis Atteka <aatteka@nicira.com> Signed-off-by:
Andy Zhou <azhou@nicira.com> Acked-by:
Thomas Graf <tgraf@noironetworks.com> Acked-by:
Pravin B Shelar <pshelar@nicira.com> Signed-off-by:
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Jesse Gross authored
As the size of the flow key grows, it can put some pressure on the stack. This is particularly true in ovs_flow_cmd_set(), which needs several copies of the key on the stack. One of those uses is logically separate, so this factors it out to reduce stack pressure and improve readibility. Signed-off-by:
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Jesse Gross authored
Currently, the flow information that is matched for tunnels and the tunnel data passed around with packets is the same. However, as additional information is added this is not necessarily desirable, as in the case of pointers. This adds a new structure for tunnel metadata which currently contains only the existing struct. This change is purely internal to the kernel since the current OVS_KEY_ATTR_IPV4_TUNNEL is simply a compressed version of OVS_KEY_ATTR_TUNNEL that is translated at flow setup. Signed-off-by:
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Jesse Gross authored
Some tunnel formats have mechanisms for indicating that packets are OAM frames that should be handled specially (either as high priority or not forwarded beyond an endpoint). This provides support for allowing those types of packets to be matched. Signed-off-by:
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Jesse Gross authored
As new protocols are added, the size of the flow key tends to increase although few protocols care about all of the fields. In order to optimize this for hashing and matching, OVS uses a variable length portion of the key. However, when fields are extracted from the packet we must still zero out the entire key. This is no longer necessary now that OVS implements masking. Any fields (or holes in the structure) which are not part of a given protocol will be by definition not part of the mask and zeroed out during lookup. Furthermore, since masking already uses variable length keys this zeroing operation automatically benefits as well. In principle, the only thing that needs to be done at this point is remove the memset() at the beginning of flow. However, some fields assume that they are initialized to zero, which now must be done explicitly. In addition, in the event of an error we must also zero out corresponding fields to signal that there is no valid data present. These increase the total amount of code but very little of it is executed in non-error situations. Removing the memset() reduces the profile of ovs_flow_extract() from 0.64% to 0.56% when tested with large packets on a 10G link. Suggested-by:
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Andy Zhou authored
This adds a device level support for Geneve -- Generic Network Virtualization Encapsulation. The protocol is documented at http://tools.ietf.org/html/draft-gross-geneve-01 Only protocol layer Geneve support is provided by this driver. Openvswitch can be used for configuring, set up and tear down functional Geneve tunnels. Signed-off-by:
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Frank Li authored
reproduce: wget https://git.kernel.org/cgit/linux/kernel/git/wfg/lkp-tests.git/plain/sbin/make.cross -O ~/bin/make.cross chmod +x ~/bin/make.cross git checkout 1b7bde6d make.cross ARCH=m68k m5275evb_defconfig make.cross ARCH=m68k All error/warnings: drivers/net/ethernet/freescale/fec_main.c: In function 'fec_enet_rx_queue': >> drivers/net/ethernet/freescale/fec_main.c:1470:3: error: implicit declaration of function 'prefetch' [-Werror=implicit-function-declaration] prefetch(skb->data - NET_IP_ALIGN); ^ cc1: some warnings being treated as errors missed included prefetch.h Reported-by:
kbuild test robot <fengguang.wu@intel.com> Signed-off-by:
Frank Li <Frank.Li@freescale.com> Signed-off-by:
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Petri Gynther authored
bcmgenet_mii_setup() is called from the PHY state machine every 1-2 seconds when the PHYs are in PHY_POLL mode. Improve bcmgenet_mii_setup() so that it touches the MAC registers only when the link is up and there was a change to link, speed, duplex, or pause status. Signed-off-by:
Petri Gynther <pgynther@google.com> Tested-by:
Florian Fainelli <f.fainelli@gmail.com> Acked-by:
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David S. Miller authored
Walter Lozano says: ==================== Altera TSE with no PHY In some scenarios there is no PHY chip present, for example in optical links. This serie of patches moves PHY get addr and MDIO create to a new function and avoids PHY and MDIO probing in these cases. ==================== Signed-off-by: -
Walter Lozano authored
This patch avoids PHY and MDIO probing if no PHY chip is present. This is the case mainly in optical links where there is no need for PHY chip, and therefore no need of MDIO. In this scenario Ethernet MAC is directly connected to an optical module through an external SFP transceiver. Signed-off-by:
Walter Lozano <walter@vanguardiasur.com.ar> Signed-off-by:
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Walter Lozano authored
Move PHY get addr and MDIO create to a new function to improve readability and make it easier to avoid its usage. This will be useful for example in the case where there is no PHY chip. Signed-off-by:
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David S. Miller authored
Merge tag 'master-2014-10-02' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next John W. Linville says: ==================== pull request: wireless-next 2014-10-03 Please pull tihs batch of updates intended for the 3.18 stream! For the iwlwifi bits, Emmanuel says: "I have here a few things that depend on the latest mac80211's changes: RRM, TPC, Quiet Period etc... Eyal keeps improving our rate control and we have a new device ID. This last patch should probably have gone to wireless.git, but at that stage, I preferred to send it to -next and CC stable." For (most of) the Atheros bits, Kalle says: "The only new feature is testmode support from me. Ben added a new method to crash the firmware with an assert for debug purposes. As usual, we have lots of smaller fixes from Michal. Matteo fixed a Kconfig dependency with debugfs. I fixed some warnings recently added to checkpatch." For the NFC bits, Samuel says: "We've had major updates for TI and ST Microelectronics drivers, and a few NCI related changes. For TI's trf7970a driver: - Target mode support for trf7970a - Suspend/resume support for trf7970a - DT properties additions to handle different quirks - A bunch of fixes for smartphone IOP related issues For ST Microelectronics' ST21NFCA and ST21NFCB drivers: - ISO15693 support for st21nfcb - checkpatch and sparse related warning fixes - Code cleanups and a few minor fixes Finally, Marvell added ISO15693 support to the NCI stack, together with a couple of NCI fixes." For the Bluetooth bits, Johan says: "This 3.18 pull request replaces the one I did on Monday ("bluetooth-next 2014-09-22", which hasn't been pulled yet). The additions since the last request are: - SCO connection fix for devices not supporting eSCO - Cleanups regarding the SCO establishment logic - Remove unnecessary return value from logging functions - Header compression fix for 6lowpan - Cleanups to the ieee802154/mrf24j40 driver Here's a copy from previous request that this one replaces: ' Here are some more patches for 3.18. They include various fixes to the btusb HCI driver, a fix for LE SMP, as well as adding Jukka to the MAINTAINERS file for generic 6LoWPAN (as requested by Alexander Aring). I've held on to this pull request a bit since we were waiting for a SCO related fix to get sorted out first. However, since the merge window is getting closer I decided not to wait for it. If we do get the fix sorted out there'll probably be a second small pull request later this week. '" And, "Unless 3.17 gets delayed this will probably be our last -next pull request for 3.18. We've got: - New Marvell hardware supportr - Multicast support for 6lowpan - Several of 6lowpan fixes & cleanups - Fix for a (false-positive) lockdep warning in L2CAP - Minor btusb cleanup" On top of all that comes the usual sort of updates to ath5k, ath9k, ath10k, brcmfmac, mwifiex, and wil6210. This time around there are also a number of rtlwifi updates to enable some new hardware and to reconcile the in-kernel drivers with some newer releases of the Realtek vendor drivers. Also of note is some device tree work for the bcma bus. Please let me know if there are problems! ==================== Signed-off-by:
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git://git.kernel.org/pub/scm/linux/kernel/git/pablo/nf-nextDavid S. Miller authored
Pablo Neira Ayuso says: ==================== Netfilter/IPVS updates for net-next The following patchset contains another batch with Netfilter/IPVS updates for net-next, they are: 1) Add abstracted ICMP codes to the nf_tables reject expression. We introduce four reasons to reject using ICMP that overlap in IPv4 and IPv6 from the semantic point of view. This should simplify the maintainance of dual stack rule-sets through the inet table. 2) Move nf_send_reset() functions from header files to per-family nf_reject modules, suggested by Patrick McHardy. 3) We have to use IS_ENABLED(CONFIG_BRIDGE_NETFILTER) everywhere in the code now that br_netfilter can be modularized. Convert remaining spots in the network stack code. 4) Use rcu_barrier() in the nf_tables module removal path to ensure that we don't leave object that are still pending to be released via call_rcu (that may likely result in a crash). 5) Remove incomplete arch 32/64 compat from nft_compat. The original (bad) idea was to probe the word size based on the xtables match/target info size, but this assumption is wrong when you have to dump the information back to userspace. 6) Allow to filter from prerouting and postrouting in the nf_tables bridge. In order to emulate the ebtables NAT chains (which are actually simple filter chains with no special semantics), we have support filtering from this hooks too. 7) Add explicit module dependency between xt_physdev and br_netfilter. This provides a way to detect if the user needs br_netfilter from the configuration path. This should reduce the breakage of the br_netfilter modularization. 8) Cleanup coding style in ip_vs.h, from Simon Horman. 9) Fix crash in the recently added nf_tables masq expression. We have to register/unregister the notifiers to clean up the conntrack table entries from the module init/exit path, not from the rule addition / deletion path. From Arturo Borrero. ==================== Signed-off-by: -
David S. Miller authored
Vladislav Yasevich says: ==================== bridge: Add vlan filtering support for default pvid This series adds default pvid support to vlan filtering in the bridge. VLAN 1 (as recommended by 802.1q spec) is used as default pvid on ports. Then the user can over-ride this configuration by configuring their own vlan information. The user can additionally change the default value through the sysfs interface (netlink coming shortly). The user can turn off default pvid functionality by setting default pvid to 0. This series changes the default behavior of the bridge when vlan filtering is turned on. Currently, ports without any vlan filtering configured will not recevie any traffic at all. This patch changes the behavior of the above ports to receive only untagged traffic. Since v3: - allocated 'changed' bitmap on the heap and re-arrange code to clean it up. - remove extra blank lines. - Fix patch1 to build by itself. - Fix error recover to not add vlan 0. - Restructure nbp_vlan_init to remove uneeded variable. Since v2: - Fix handling of invalid values in sysfs interface. - Add some additional log messages. - Fix default_pvid handling when vlan filtering is compiled out. - Fix sparse issues with new code. - Fix how we located the old default pvid (added a helper function). Since v1: - Add ability to turn off default_pvid settings. - Drop the automiatic filtering support based on configured vlan devices (will be its own series) ==================== Signed-off-by: -
Vlad Yasevich authored
Currently when vlan filtering is turned on on the bridge, the bridge will drop all traffic untill the user configures the filter. This isn't very nice for ports that don't care about vlans and just want untagged traffic. A concept of a default_pvid was recently introduced. This patch adds filtering support for default_pvid. Now, ports that don't care about vlans and don't define there own filter will belong to the VLAN of the default_pvid and continue to receive untagged traffic. This filtering can be disabled by setting default_pvid to 0. Signed-off-by:
Vladislav Yasevich <vyasevic@redhat.com> Signed-off-by:
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Vlad Yasevich authored
Currently, if the pvid is not set, we return an illegal vlan value even though the pvid value is set to 0. Since pvid of 0 is currently invalid, just return 0 instead. This makes the current and future checks simpler. Signed-off-by:
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Vlad Yasevich authored
This patch allows the user to set and retrieve default_pvid value. A new value can only be stored when vlan filtering is disabled. Signed-off-by:
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Antoine Ténart authored
Signedness bugs may occur when using signed char for bitops, depending on if the highest bit is ever used. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
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