- 11 Apr, 2013 19 commits
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Jason Wang authored
After commit 2b8b328b (vhost_net: handle polling errors when setting backend), we in fact track the polling state through poll->wqh, so there's no need to duplicate the work with an extra vhost_net_polling_state. So this patch removes this and make the code simpler. This patch also removes the all tx starting/stopping code in tx path according to Michael's suggestion. Netperf test shows almost the same result in stream test, but gets improvements on TCP_RR tests (both zerocopy or copy) especially on low load cases. Tested between multiqueue kvm guest and external host with two direct connected 82599s. zerocopy disabled: sessions|transaction rates|normalize| before/after/+improvements 1 | 9510.24/11727.29/+23.3% | 693.54/887.68/+28.0% | 25| 192931.50/241729.87/+25.3% | 2376.80/2771.70/+16.6% | 50| 277634.64/291905.76/+5% | 3118.36/3230.11/+3.6% | zerocopy enabled: sessions|transaction rates|normalize| before/after/+improvements 1 | 7318.33/11929.76/+63.0% | 521.86/843.30/+61.6% | 25| 167264.88/242422.15/+44.9% | 2181.60/2788.16/+27.8% | 50| 272181.02/294347.04/+8.1% | 3071.56/3257.85/+6.1% | Signed-off-by:
Jason Wang <jasowang@redhat.com> Acked-by:
Michael S. Tsirkin <mst@redhat.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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git://git.kernel.org/pub/scm/linux/kernel/git/klassert/ipsec-nextDavid S. Miller authored
Steffen Klassert says: ==================== 1) Allow to avoid copying DSCP during encapsulation by setting a SA flag. From Nicolas Dichtel. 2) Constify the netlink dispatch table, no need to modify it at runtime. From Mathias Krause. ==================== Signed-off-by: -
Eugenia Emantayev authored
When setting MTU in SRIOV mode add ETH, VLAN and FCS header length to the maximum MTU obtained from QUERY_DEV_CAP. Signed-off-by:
Eugenia Emantayev <eugenia@mellanox.com> Signed-off-by:
Jack Morgenstein <jackm@dev.mellanox.com> Signed-off-by:
Amir Vadai <amirv@mellanox.com> Signed-off-by:
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Hadar Hen Zion authored
The different steering modes are global to the device, with DMFS being introduced after SRIOV was merged. Hence, SRIOV guests running legacy / older Linux kernels or non-Linux drivers may provide B0 steering directives when the hypervisor is using DMFS and fail. Under B0 only L2 steering rules are allowed, hence B0 is a subset of DMFS. Use this fact to enable such legacy guests to run by modifying the SRIOV B0 steering wrapper to translate guest B0 directives to DMFS ones when the device uses DMFS. The translated B0 rule has to be kept in the resource tracker as a B0 object to allow for lookup in case of detach. Signed-off-by:
Hadar Hen Zion <hadarh@mellanox.com> Signed-off-by:
Or Gerlitz <ogerlitz@mellanox.com> Signed-off-by:
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Hadar Hen Zion authored
A pre-step for supporting guests that use B0 steering over a hypervisor that runs in DMFS (device managed flow steering mode). Add helper function which allows to translate L2 attachments / detachments provided in B0 mode to DMFS rules. Signed-off-by:
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Ming Lei authored
The link change is detected via the interrupt pipe, and bulk pipes are responsible for transfering packets, so it is reasonable to stop bulk transfer after link is reported as off. Two adavantages may be obtained with stopping bulk transfer after link becomes off: - USB bus bandwidth is saved(USB bus is shared bus except for USB3.0), for example, lots of 'IN' token packets and 'NYET' handshake packets is transfered on 2.0 bus. - probabaly power might be saved for usb host controller since cancelling bulk transfer may disable the asynchronous schedule of host controller. With this patch, when link becomes off, about ~10% performance boost can be found on bulk transfer of anther usb device which is attached to same bus with the usbnet device, see below test on next-20130410: - read from usb mass storage(Sandisk Extreme USB 3.0) on pandaboard with below command after unplugging ethernet cable: dd if=/dev/sda iflag=direct of=/dev/null bs=1M count=800 - without the patch 1, 838860800 bytes (839 MB) copied, 36.2216 s, 23.2 MB/s 2, 838860800 bytes (839 MB) copied, 35.8368 s, 23.4 MB/s 3, 838860800 bytes (839 MB) copied, 35.823 s, 23.4 MB/s 4, 838860800 bytes (839 MB) copied, 35.937 s, 23.3 MB/s 5, 838860800 bytes (839 MB) copied, 35.7365 s, 23.5 MB/s average: 23.6MB/s - with the patch 1, 838860800 bytes (839 MB) copied, 32.3817 s, 25.9 MB/s 2, 838860800 bytes (839 MB) copied, 31.7389 s, 26.4 MB/s 3, 838860800 bytes (839 MB) copied, 32.438 s, 25.9 MB/s 4, 838860800 bytes (839 MB) copied, 32.5492 s, 25.8 MB/s 5, 838860800 bytes (839 MB) copied, 31.6178 s, 26.5 MB/s average: 26.1MB/s Signed-off-by:
Ming Lei <ming.lei@canonical.com> Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Cc: Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
Peter Korsgaard <jacmet@sunsite.dk> Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Signed-off-by:
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Ming Lei authored
Use usbnet_link_change to handle link change centrally. Signed-off-by:
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Ming Lei authored
Use the introduced usbnet_link_change to handle link change. Signed-off-by:
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Ming Lei authored
This patch uses the introduced usbnet_link_change() to handle link change. Signed-off-by:
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Ming Lei authored
The driver doesn't implement link_reset() callback, so it needn't to send link reset event. Signed-off-by:
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Ming Lei authored
This patch introduces the API of usbnet_link_change, so that usbnet can handle link change centrally, which may help to implement killing traffic URBs for saving USB bus bandwidth and host controller power. Signed-off-by:
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stephen hemminger authored
Minor sparse warning Signed-off-by:
Stephen Hemminger <stephen@networkplumber.org> Signed-off-by:
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stephen hemminger authored
Fix warning about 0 used as NULL. Signed-off-by:
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stephen hemminger authored
Signed-off-by:
Michael Chan <mchan@broadcom.com> Signed-off-by:
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- 10 Apr, 2013 3 commits
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David S. Miller authored
John W. Linville says: ==================== Please accept this pull request for the 3.10 stream... Regarding the mac80211 bits, Johannes says: "Here I have a bunch of minstrel fixes from Felix, per-interface multicast filtering from Alex, set_tim debouncing from Ilan, per-interface debugfs cleanups from Stanislaw, an error return fix from Wei and a number of small improvements and fixes that I made myself." And for the iwlwifi bits, Johannes says: "Andrei changed an instance of kmalloc+memdup to kmemdup, Stanislaw removed the now unused 5ghz_disable module parameter. I also have a number of fixes from Ilan, Emmanuel and myself, Emmanuel also continued working on Bluetooth coexistence." For the sizeable batch of Bluetooth bits, Gustavo says: "This is our first batch of patches for 3.10. The biggest changes of this pull request are from Johan Hedberg, he implemented a HCI request framework to make life easier when we have to send many HCI commands and a block and wait for all of the to finish, we were able to fix a few issues in stack with the introduction of this framework. Other than that Dean Jenkins did a good work cleaning the RFCOMM code, the refcnt infrastructure was removed and now we use NULL pointer checks to know when a object was freed or not. That code was buggy and now it looks a way better. The rest of changes are clean ups, fixes and small improvements all over the Bluetooth subsystem." Regarding the wl12xx bits, Luca says: "Some patches intended for 3.10. Mostly bug fixes and other small improvements." On top of that, there are updates to brcmfmac, brcmsmac, b43, ssb and bcma, as well as mwifiex, rt2x00, and ath9k and a few others. The most notable bit is the addition of a new driver in the rtlwifi family. Please let me know if there are problems! ==================== Signed-off-by: -
John W. Linville authored
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next into for-davem Conflicts: drivers/net/wireless/rt2x00/rt2x00pci.c net/mac80211/sta_info.c net/wireless/core.h
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git://git.kernel.org/pub/scm/linux/kernel/git/linville/wirelessJohn W. Linville authored
Conflicts: drivers/net/wireless/rt2x00/rt2x00pci.c
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- 09 Apr, 2013 18 commits
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Joe Perches authored
Using bool can make code more readable. Convert uses and tests of int to bool. This also makes a comparison of tg3->link_up (itself bool) a bool comparison instead of int. Reorder stack variable declarations to make bool fit declaration holes where appropriate. $ size drivers/net/ethernet/broadcom/tg3.o* text data bss dec hex filename 169958 27249 58896 256103 3e867 drivers/net/ethernet/broadcom/tg3.o.new 169968 27249 58896 256113 3e871 drivers/net/ethernet/broadcom/tg3.o.old Signed-off-by:
Joe Perches <joe@perches.com> Reviewed-by:
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David S. Miller authored
Nithin Nayak Sujir says: ==================== This patch and the following two patches add support for link flap avoidance by maintaining the link on power down. This feature is required for management capable devices to have the management connection uninterrupted on driver reload, reboot and interface up/down. The other pros of this feature are - It speeds up boot up time by several seconds as DHCP addresses can be acquired faster. - It avoids lengthy Spanning Tree delay. On powerup the hardware brings up the phy with default settings. If the link is not up, the management software configures the phy to gigabit and starts autonegotiate. Subsequently, as long as the link is up, the driver and management refrain from resetting and/or changing any configuration that the link depends on. The LNK_FLAP_AVOID setting is an NVRAM user configurable bit and is disabled by default. If this setting is enabled, we skip powering down the phy and resetting it. A second NVRAM setting is 1G_ON_VAUX_OK (off by default). This adds support for gigabit link speed when device is on auxiliary power. ==================== Signed-off-by:
Nithin Nayak Sujir <nsujir@broadcom.com> Signed-off-by:
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Nithin Sujir authored
Signed-off-by:
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Nithin Sujir authored
Signed-off-by:
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Nithin Sujir authored
When LFA is enabled, we don't reset the phy. But EEE settings changes don't take effect until the phy is reset. Add a phy reset when we detect a changed EEE setting. Signed-off-by:
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Nithin Sujir authored
Normally on driver load, we set the default settings for speed and flow control. However, if the default setting is not compatible with the current link state, we would autonegotiate and cause a link flap. To avoid this, we pull the current advertised settings into the config. A second scenario is if a user changes the speed/duplex/fc settings when the interface is down. In this case we must not pull the settings from the phy and overwrite user settings. We avoid that by checking the USER_CONFIGURED flag. Signed-off-by:
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Nithin Sujir authored
This patch and the following two patches add support for link flap avoidance by maintaining the link on power down. This feature is required for management capable devices to have the management connection uninterrupted on driver reload, reboot and interface up/down. The other pros of this feature are - It speeds up boot up time by several seconds as DHCP addresses can be acquired faster. - It avoids lengthy Spanning Tree delay. On powerup the hardware brings up the phy with default settings. If the link is not up, the management software configures the phy to gigabit and starts autonegotiate. Subsequently, as long as the link is up, the driver and management refrain from resetting and/or changing any configuration that the link depends on. The LNK_FLAP_AVOID setting is an NVRAM user configurable bit and is disabled by default. If this setting is enabled, we skip powering down the phy and resetting it. A second NVRAM setting is 1G_ON_VAUX_OK (off by default). This adds support for gigabit link speed when device is on auxiliary power. Signed-off-by:
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Michael Chan authored
Signed-off-by:
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Michael Chan authored
Refactor for use in the next patch that adds sgmii phy support. Signed-off-by:
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Nithin Sujir authored
When the user executes certain ethtool commands such as -s, -A, -G, -L, -r a phy reset or autonegotiate is performed which results in management traffic being interrupted. Add a warning in these cases. Signed-off-by:
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Nithin Sujir authored
The current code unnecessarily resets the phy when we use ethtool to change the ring parameters or flow control settings. Remove the phy reset. Signed-off-by:
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Michael Chan authored
The STM45PE20 pinstrap on 5762 devices supports multiple sizes. So treat it just like the ST45_USPT and the size will be read from 0xf0 via tg3_get_nvram_size(). Signed-off-by:
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Nithin Sujir authored
In tg3_setup_copper_phy(), if autonegotiation is disabled, we need to relink only if the speed or duplex does not match the configured setting. If flow control does not match, a relink is not necessary as flow control is not a PHY setting. Later on, we'll call tg3_setup_flow_ctrl() to set up the MAC to the desired flow control settings if we're in full duplex mode. Signed-off-by:
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Daniel Borkmann authored
This patch introduces an UAPI header for the SCTP protocol, so that we can facilitate the maintenance and development of user land applications or libraries, in particular in terms of header synchronization. To not break compatibility, some fragments from lksctp-tools' netinet/sctp.h have been carefully included, while taking care that neither kernel nor user land breaks, so both compile fine with this change (for lksctp-tools I tested with the old netinet/sctp.h header and with a newly adapted one that includes the uapi sctp header). lksctp-tools smoke test run through successfully as well in both cases. Suggested-by:
Neil Horman <nhorman@tuxdriver.com> Cc: Neil Horman <nhorman@tuxdriver.com> Cc: Vlad Yasevich <vyasevich@gmail.com> Signed-off-by:
Daniel Borkmann <dborkman@redhat.com> Signed-off-by:
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Wei Yongjun authored
module_spi_driver() makes the code simpler by eliminating boilerplate code. Signed-off-by:
Wei Yongjun <yongjun_wei@trendmicro.com.cn> Signed-off-by:
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Zefan Li authored
The callers always pass current to sock_update_netprio(). Signed-off-by:
Li Zefan <lizefan@huawei.com> Acked-by:
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Zefan Li authored
The callers always pass current to sock_update_classid(). Signed-off-by:
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Zefan Li authored
We read the value but make no use of it. Signed-off-by:
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