- 25 Jan, 2015 12 commits
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Kalesh AP authored
This patch adds a log message in case of POST timeout in Lancer to help debugging failure cases. It also logs sliport_status register value in case of POST timeout. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kalesh AP authored
The support for this exists only in skyhawk FW. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kalesh AP authored
When the FW cmd to set flow control fails, the adapter state must simply reflect the old values. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Kalesh AP authored
This removes a bit of duplication of code that initializes the en_flags. Signed-off-by: Kalesh AP <kalesh.purayil@emulex.com> Signed-off-by: Sathya Perla <sathya.perla@emulex.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Romain Perier says: ==================== net: stmmac: dwmac-rk: Fix phy regulator issues This series fixes few issues in dwmac-rk: 1. Voltage settings was hardcoded into the driver for the phy regulator. The driver now uses the default voltage settings found in the devicetree, which are applied throught the regulator framework. 2. The regulator name used to power on or power off the phy was put in the devicetree variable "phy_regulator", which is not standard and added a lot of code for nothing. The driver now uses the devicetree property "phy-supply" and the corresponding functions to manipulate this regulator. The corresponding devicetree files are also updated. As this new binding for rk3288 has not been released with any official kernel yet (not until 3.20), I don't need to care about keeping compatibility with the old non standard property. ==================== Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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Romain Perier authored
As no property for phy regulator was documented in this dt-binding documentation, this commit adds an entry for the optional property phy-supply. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Romain Perier authored
Currently, dwmac-rk uses a custom propety "phy_regulator" to get the name of the right regulator to use to power on or power off the phy. This commit converts the driver to use phy-supply devicetree property and the corresponding API, it cleans the code a bit and make it simpler to maintain. This also replaces the property phy_regulator by the standard property phy-supply in rk3288-evb-rk808.dts. Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Romain Perier authored
Signed-off-by: Romain Perier <romain.perier@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Romain Perier authored
As these settings can be directly expressed from devicetree for both fixed regulators and pmic-integrated regulators, it is more standard to set them from dts and let the regulator framework use the right voltage informations when it is used in the driver. Signed-off-by: Romain Perier <romain.perier@gmail.com> Tested-by: Heiko Stuebner <heiko@sntech.de> Reviewed-by: Heiko Stuebner <heiko@sntech.de> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Hariprasad Shenai says: ==================== cxgb4: Add support to dump flash and rss config This patch series adds support to dump flash, rss, rss_key, rss_config, rss_pf_config and rss_vf_config debugfs entries. The patches series is created against 'net-next' tree. And includes patches on cxgb4 driver. We have included all the maintainers of respective drivers. Kindly review the change and let us know in case of any review comments. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai authored
Adds support to dump the rss table, rss_config, rss_key, rss_pf_config and rss_vf_config Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Hariprasad Shenai authored
Adds support to dump the contents of the flash in the adapter Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 24 Jan, 2015 9 commits
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David Vrabel authored
Always fully coalesce guest Rx packets into the minimum number of ring slots. Reducing the number of slots per packet has significant performance benefits when receiving off-host traffic. Results from XenServer's performance benchmarks: Baseline Full coalesce Interhost VM receive 7.2 Gb/s 11 Gb/s Interhost aggregate 24 Gb/s 24 Gb/s Intrahost single stream 14 Gb/s 14 Gb/s Intrahost aggregate 34 Gb/s 34 Gb/s However, this can increase the number of grant ops per packet which decreases performance of backend (dom0) to VM traffic (by ~10%) /unless/ grant copy has been optimized for adjacent ops with the same source or destination (see "grant-table: defer releasing pages acquired in a grant copy"[1] expected in Xen 4.6). [1] http://lists.xen.org/archives/html/xen-devel/2015-01/msg01118.htmlSigned-off-by: David Vrabel <david.vrabel@citrix.com> Acked-by: Ian Campbell <ian.campbell@citrix.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Nicolas Dichtel says: ==================== netns: advertise netns via netlink The first patch of the series fix a bug of the previous series (present in net-next only). The rest of the series adds an attribute to advertise the peer netns for rtnetlink messages where this information is needed by userland to be able to interpret fully the received message. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
Netlink FDB messages are sent in the link netns. The header of these messages contains the ifindex (ndm_ifindex) of the netdevice, but this ifindex is unusable in case of x-netns vxlan. I named the new attribute NDA_NDM_IFINDEX_NETNSID, to avoid confusion with NDA_IFINDEX. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is added to rtnetlink messages. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is added to rtnetlink messages. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is added to rtnetlink messages. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
Assign rtnl_link_ops->get_link_net() callback so that IFLA_LINK_NETNSID is added to rtnetlink messages. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
If an error occurs when the netdevice is moved to the link netns, a full cleanup must be done. Fixes: 317f4810 ("rtnl: allow to create device with IFLA_LINK_NETNSID set") Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Thomas Graf authored
Depending on NETFILTER is not sufficient to ensure the presence of the 'mark' field in nf_conn, also needs to depend on NF_CONNTRACK_MARK. Fixes: 22a5dc ("net: sched: Introduce connmark action") Cc: Felix Fietkau <nbd@openwrt.org> Cc: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: Thomas Graf <tgraf@suug.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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- 19 Jan, 2015 19 commits
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David S. Miller authored
Merge tag 'mac80211-next-for-davem-2015-01-19' of git://git.kernel.org/pub/scm/linux/kernel/git/jberg/mac80211-next Some further updates for net-next: * fix network-manager which was broken by the previous changes * fix delete-station events, which were broken by me making the genlmsg_end() mistake * fix a timer left running during suspend in some race conditions that would cause an annoying (but harmless) warning * (less important, but in the tree already) remove 80+80 MHz rate reporting since the spec doesn't distinguish it from 160 MHz; as the bitrate they're both 160 MHz bandwidth Signed-off-by: David S. Miller <davem@davemloft.net>
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Johannes Berg authored
My previous patch to this file changed the code to be bug-compatible towards userspace. Unless userspace (which I wasn't able to find) implements the dump reader by hand in a wrong way, this isn't needed. If it uses libnl or similar code putting multiple messages into a single SKB is far more efficient. Change the code to do this. While at it, also clean it up and don't use so many variables - just store the address in the callback args directly. Signed-off-by: Johannes Berg <johannes.berg@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Nimrod Andy authored
The commit (3d125f9c) cause i.MX6SX sdb enet cannot work. The cause is the commit add mdio node with un-correct phy address. The patch just correct i.MX6sx sdb board enet phy address. Signed-off-by: Fugang Duan <B38611@freescale.com> Acked-by: Stefan Agner <stefan@agner.ch> Signed-off-by: David S. Miller <davem@davemloft.net>
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Felix Fietkau authored
This tc action allows you to retrieve the connection tracking mark This action has been used heavily by openwrt for a few years now. There are known limitations currently: doesn't work for initial packets, since we only query the ct table. Fine given use case is for returning packets no implicit defrag. frags should be rare so fix later.. won't work for more complex tasks, e.g. lookup of other extensions since we have no means to store results we still have a 2nd lookup later on via normal conntrack path. This shouldn't break anything though since skb->nfct isn't altered. V2: remove unnecessary braces (Jiri) change the action identifier to 14 (Jiri) Fix some stylistic issues caught by checkpatch V3: Move module params to bottom (Cong) Get rid of tcf_hashinfo_init and friends and conform to newer API (Cong) Acked-by: Jiri Pirko <jiri@resnulli.us> Signed-off-by: Felix Fietkau <nbd@openwrt.org> Signed-off-by: Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Florian Fainelli says: ==================== net: DSA fixes for bridge and ip-autoconf These two patches address some real world use cases of the DSA master and slave network devices. You have already seen patch 1 previously and you rejected it since my explanations were not good enough to provide a justification as to why it is useful, hopefully this time my explanation is better. Patch 2 solves a different, yet very real problem as well at the bridge layer when using DSA network devices. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
DSA-enabled master network devices with a switch tagging protocol should strip the protocol specific format before handing the frame over to higher layer. When adding such a DSA master network device as a bridge member, we go through the following code path when receiving a frame: __netif_receive_skb_core -> first ptype check against ptype_all is not returning any handler for this skb -> check and invoke rx_handler: -> deliver frame to the bridge layer: br_handle_frame DSA registers a ptype handler with the fake ETH_XDSA ethertype, which is called *after* the bridge-layer rx_handler has run. br_handle_frame() tries to parse the frame it received from the DSA master network device, and will not be able to match any of its conditions and jumps straight at the end of the end of br_handle_frame() and returns RX_HANDLER_CONSUMED there. Since we returned RX_HANDLER_CONSUMED, __netif_receive_skb_core() stops RX processing for this frame and returns NET_RX_SUCCESS, so we never get a chance to call our switch tag packet processing logic and deliver frames to the DSA slave network devices, and so we do not get any functional bridge members at all. Instead of cluttering the bridge receive path with DSA-specific checks, and rely on assumptions about how __netif_receive_skb_core() is processing frames, we simply deny adding the DSA master network device (conduit interface) as a bridge member, leaving only the slave DSA network devices to be bridge members, since those will work correctly in all circumstances. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Florian Fainelli authored
The logic to configure a network interface for kernel IP auto-configuration is very simplistic, and does not handle the case where a device is stacked onto another such as with DSA. This causes the kernel not to open and configure the master network device in a DSA switch tree, and therefore slave network devices using this master network devices as conduit device cannot be open. This restriction comes from a check in net/dsa/slave.c, which is basically checking the master netdev flags for IFF_UP and returns -ENETDOWN if it is not the case. Automatically bringing-up DSA master network devices allows DSA slave network devices to be used as valid interfaces for e.g: NFS root booting by allowing kernel IP autoconfiguration to succeed on these interfaces. On the reverse path, make sure we do not attempt to close a DSA-enabled device as this would implicitely prevent the slave DSA network device from operating. Signed-off-by: Florian Fainelli <f.fainelli@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Ben Hutchings authored
mii_check_media() does not update the link (carrier) state or log link changes when the link mode is forced. Drivers using the mii library must do this themselves, but most of them do not. Instead of changing them all, provide a sensible default behaviour similar to mii_check_link() when the mode is forced. via-rhine depends on it being a no-op in this case, so make its call to mii_check_media() conditional. Signed-off-by: Ben Hutchings <ben.hutchings@codethink.co.uk> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Praveen Madhavan says: ==================== csiostor: Remove T4 FCoE support We found a subtle issue with FCoE on T4 very late in the game and decided not to productize FCoE on T4 and therefore there are no customers that will be impacted by this change. FCoE is supported on T5 cards. Please apply on net-next since depends on previous commits. Changes in v2: - Make the commit message more clearer. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Praveen Madhavan authored
We have decided not to productize FCoE on T4. Hence file is removed. Signed-off-by: Praveen Madhavan <praveenm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Praveen Madhavan authored
We found a subtle issue with FCoE on T4 very late in the game and decided not to productize FCoE on T4 and therefore there are no customers that will be impacted by this change. Hence T4 FCoE support is removed. FCoE supported only on T5 cards. changes in v2: - Make the commit message more clearer. Signed-off-by: Praveen Madhavan <praveenm@chelsio.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Murali Karicheri says: ==================== net: Add Keystone NetCP ethernet driver support The Network Coprocessor (NetCP) is a hardware accelerator that processes Ethernet packets. NetCP has a gigabit Ethernet (GbE) subsystem with a ethernet switch sub-module to send and receive packets. NetCP also includes a packet accelerator (PA) module to perform packet classification operations such as header matching, and packet modification operations such as checksum generation. NetCP can also optionally include a Security Accelerator(SA) capable of performing IPSec operations on ingress/egress packets. Keystone SoC's also have a 10 Gigabit Ethernet Subsystem (XGbE) which includes a 3-port Ethernet switch sub-module capable of 10Gb/s and 1Gb/s rates per Ethernet port. Both GBE and XGBE network processors supported using common driver. It is also designed to handle future variants of NetCP. version history --------------- v7->v8 - Reworked comments against v7, related to checker warning. - Patch 2/4 that has all of the driver code in v7 is now split into 3 patches based on functionality so that we have 3 smaller patches review instead of a big patch. - Patch for MAINTAINER is merged to 2/4 along with netcp core driver - Separate patch (3/4) for 1G and (4/4) for 10G - Removed big endian support for initial version (will add it later) v6->v7 - Fixed some minor documentation error and also modified the netcp driver to fix the set* functions to include correct le/be macros. v5->v6 - updated version after incorporating comments [6] from David Miller, David Laight & Geert Uytterhoeven on v5. I would like get this in for v3.19 merge window if the latest version is acceptable. v4->v5 - Sorry to spin v5 quickly but I missed few check-patch warnings which were pointed by Joe Perches(thanks). I folded his changes [5] along with few more check-patch warning fixes. I would like get this in for v3.18 merge window if David is happy with this version. v3->v4 - Couple of fixes in in error path as pointed [4] out by David. Rest of the patches are unchanged from v3. v2->v3 - Update v3 after incorporating Jamal and David Miller's comment/suggestion from earlier versions [1] [2]. After per the discussion here [3], the controversial custom exports have been dropped now. And for future future offload support additions, we will plug into generic frameworks as an when they are available. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Wingman Kwok authored
This patch enhances the NetCP gbe driver to support 10GbE subsystem available in Keystone NetCP. The 3-port 10GbE switch sub-module contains the following components:- 10GbE Switch, MDIO Module, 2 PCS-R Modules (10GBase-R) and 2 SGMII modules (10/100/1000Base-T). The GBE driver together with netcp core driver provides support for 10G Ethernet on Keystone SoCs. 10GbE hardware spec is available at http://www.ti.com/general/docs/lit/getliterature.tsp?baseLiteratureNumber=spruhj5&fileType=pdf Cc: David Miller <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by: Wingman Kwok <w-kwok2@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Wingman Kwok authored
This patch add support for 1G Ethernet driver based on Keystone NetCP hardware. The gigabit Ethernet (GbE) switch subsystem is one of the main components of the network coprocessor (NETCP) peripheral. The purpose of the gigabit Ethernet switch subsystem in the NETCP is to provide an interface to transfer data between the host device and another connected device in compliance with the Ethernet protocol. GbE consists of 5 port Ethernet Switch module, 4 Serial Gigabit Media Independent Interface (SGMII) modules, MDIO module and SerDes. Driver for 5 port GbE switch and SGMII module is added in this patch. These hardware modules along with netcp core driver provides Network driver functions for 1G Ethernet. Detailed hardware spec is available at http://www.ti.com/lit/ug/sprugv9d/sprugv9d.pdf Cc: David Miller <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by: Wingman Kwok <w-kwok2@ti.com> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karicheri, Muralidharan authored
The network coprocessor (NetCP) is a hardware accelerator available in Keystone SoCs that processes Ethernet packets. NetCP consists of following hardware components 1 Gigabit Ethernet (GbE) subsystem with a Ethernet switch sub-module to send and receive packets. 2 Packet Accelerator (PA) module to perform packet classification operations such as header matching, and packet modification operations such as checksum generation. 3 Security Accelerator(SA) capable of performing IPSec operations on ingress/egress packets. 4 An optional 10 Gigabit Ethernet Subsystem (XGbE) which includes a 3-port Ethernet switch sub-module capable of 10Gb/s and 1Gb/s rates per Ethernet port. 5 Packet DMA and Queue Management Subsystem (QMSS) to enqueue and dequeue packets and DMA the packets between memory and NetCP hardware components described above. NetCP core driver make use of the Keystone Navigator driver API to allocate DMA channel for the Ethenet device and to handle packet queue/de-queue, Please refer API's in include/linux/soc/ti/knav_dma.h and drivers/soc/ti/knav_qmss.h for details. NetCP driver consists of NetCP core driver and at a minimum Gigabit Ethernet (GBE) module (1) driver to implement the Network device function. Other modules (2,3) can be optionally added to achieve supported hardware acceleration function. The initial version of the driver include NetCP core driver and GBE driver modules. Please refer Documentation/devicetree/bindings/net/keystone-netcp.txt for design of the driver. Cc: David Miller <davem@davemloft.net> Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Santosh Shilimkar <santosh.shilimkar@kernel.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: Wingman Kwok <w-kwok2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Karicheri, Muralidharan authored
The network coprocessor (NetCP) is a hardware accelerator that processes Ethernet packets. NetCP has a gigabit Ethernet (GbE) subsystem with a ethernet switch sub-module to send and receive packets. NetCP also includes a packet accelerator (PA) module to perform packet classification operations such as header matching, and packet modification operations such as checksum generation. NetCP can also optionally include a Security Accelerator(SA) capable of performing IPSec operations on ingress/egress packets. Keystone SoC's also have a 10 Gigabit Ethernet Subsystem (XGbE) which includes a 3-port Ethernet switch sub-module capable of 10Gb/s and 1Gb/s rates per Ethernet port. NetCP Subsystem device tree layout looks something like below: ----------------------------- NetCP subsystem(10G or 1G) ----------------------------- | |-> NetCP Devices -> | | |-> GBE/XGBE Switch | | | |-> Packet Accelerator | | | |-> Security Accelerator | | | |-> NetCP Interfaces -> | |-> Ethernet Port 0 | |-> Ethernet Port 1 | |-> Ethernet Port 2 | |-> Ethernet Port 3 Common driver supports GBE as well XGBE network processors. Cc: Rob Herring <robh+dt@kernel.org> Cc: Grant Likely <grant.likely@linaro.org> Cc: Pawel Moll <pawel.moll@arm.com> Cc: Mark Rutland <mark.rutland@arm.com> Cc: Ian Campbell <ijc+devicetree@hellion.org.uk> Cc: Kumar Gala <galak@codeaurora.org> Cc: David Miller <davem@davemloft.net> Cc: Santosh Shilimkar <santosh.shilimkar@kernel.org> Signed-off-by: Murali Karicheri <m-karicheri2@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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Felipe Balbi authored
Commit c03abd84 (net: ethernet: cpsw: don't requests IRQs we don't use) left one build breakage when NET_POLL_CONTROLLER is enabled. Fix this build break by referring to the correct irqs_table array. Fixes: c03abd84 (net: ethernet: cpsw: don't requests IRQs we don't use) Reported-by: kbuild test robot <fengguang.wu@intel.com> Signed-off-by: Felipe Balbi <balbi@ti.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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David S. Miller authored
Merge branch 'link_netns' Nicolas Dichtel says: ==================== netns: allow to identify peer netns The goal of this serie is to be able to multicast netlink messages with an attribute that identify a peer netns. This is needed by the userland to interpret some information contained in netlink messages (like IFLA_LINK value, but also some other attributes in case of x-netns netdevice (see also http://thread.gmane.org/gmane.linux.network/315933/focus=316064 and http://thread.gmane.org/gmane.linux.kernel.containers/28301/focus=4239)). Ids of peer netns can be set by userland via a new rtnl cmd RTM_NEWNSID. When the kernel needs an id for a peer (for example when advertising a new x-netns interface via netlink), if the user didn't allocate an id, one will be automatically allocated. These ids are stored per netns and are local (ie only valid in the netns where they are set). To avoid allocating an int for each peer netns, I use idr_for_each() to retrieve the id of a peer netns. Note that it will be possible to add a table (struct net -> id) later to optimize this lookup if needed. Patch 1/4 introduces the rtnetlink API mechanism to set and get these ids. Patch 2/4 and 3/4 implements an example of how to use these ids when advertising information about a x-netns interface. And patch 4/4 shows that the netlink messages can be symetric between a GET and a SET. iproute2 patches are available, I can send them on demand. Here is a small screenshot to show how it can be used by userland. $ ip netns add foo $ ip netns del foo $ ip netns $ touch /var/run/netns/init_net $ mount --bind /proc/1/ns/net /var/run/netns/init_net $ ip netns add foo $ ip -n foo netns foo init_net $ ip -n foo netns set init_net 0 $ ip -n foo netns set foo 1 $ ip netns foo init_net $ ip -n foo netns foo (id: 1) init_net (id: 0) $ ip -n foo link add ipip1 link-netnsid 0 type ipip remote 10.16.0.121 local 10.16.0.249 $ ip -n foo link ls ipip1 6: ipip1@NONE: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default link/ipip 10.16.0.249 peer 10.16.0.121 link-netnsid 0 $ ip netns foo init_net $ ip -n foo link add ipip2 type ipip remote 10.16.0.121 local 10.16.0.249 $ ip -n foo link set ipip2 netns init_net $ ip link ls ipip2 7: ipip2@NONE: <POINTOPOINT,NOARP> mtu 1480 qdisc noop state DOWN mode DEFAULT group default link/ipip 10.16.0.249 peer 10.16.0.121 link-netnsid 0 $ ip netns foo (id: 0) init_net v4 -> v5: use rtnetlink instead of genetlink allocate automatically an id if user didn't assign one rename include/uapi/linux/netns.h to include/uapi/linux/net_namespace.h add vxlan in patch #3 RFCv3 -> v4: rebase on net-next add copyright text in the new netns.h file RFCv2 -> RFCv3: ids are now defined by userland (via netlink). Ids are stored in each netns (and they are local to this netns). add get_link_net support for ip6 tunnels netnsid is now a s32 instead of a u32 RFCv1 -> RFCv2: remove useless () ids are now stored in the user ns. It's possible to get an id for a peer netns only if the current netns and the peer netns have the same user ns parent. ==================== Signed-off-by: David S. Miller <davem@davemloft.net>
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Nicolas Dichtel authored
This patch adds the ability to create a netdevice in a specified netns and then move it into the final netns. In fact, it allows to have a symetry between get and set rtnl messages. Signed-off-by: Nicolas Dichtel <nicolas.dichtel@6wind.com> Signed-off-by: David S. Miller <davem@davemloft.net>
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