- 30 Aug, 2017 27 commits
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Colin Ian King authored
Trivial fix to spelling mistake in DP_NOTICE message Signed-off-by:
Colin Ian King <colin.king@canonical.com> Signed-off-by:
David S. Miller <davem@davemloft.net>
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Salil Mehta authored
This patch removes the wrong check being done for the phy device being returned by the mdiobus_get_phy() function. This function never returns the error pointers. Fixes: 256727da ("net: hns3: Add MDIO support to HNS3 Ethernet Driver for hip08 SoC") Reported-by:
Dan Carpenter <dan.carpenter@oracle.com> Signed-off-by:
Salil Mehta <salil.mehta@huawei.com> Signed-off-by:
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Bhumika Goyal authored
Make this const as it is never modified. Signed-off-by:
Bhumika Goyal <bhumirks@gmail.com> Signed-off-by:
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Ahmed Abdelsalam authored
IPv6 packet may carry more than one extension header, and IPv6 nodes must accept and attempt to process extension headers in any order and occurring any number of times in the same packet. Hence, there should be no assumption that Segment Routing extension header is to appear immediately after the IPv6 header. Moreover, section 4.1 of RFC 8200 gives a recommendation on the order of appearance of those extension headers within an IPv6 packet. According to this recommendation, Segment Routing extension header should appear after Hop-by-Hop and Destination Options headers (if they present). This patch fixes the get_srh(), so it gets the segment routing header regardless of its position in the chain of the extension headers in IPv6 packet, and makes sure that the IPv6 routing extension header is of Type 4. Signed-off-by:
Ahmed Abdelsalam <amsalam20@gmail.com> Acked-by:
David Lebrun <david.lebrun@uclouvain.be> Signed-off-by:
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David S. Miller authored
Antoine Tenart says: ==================== net: mvpp2: comphy configuration This series, following up the one one the GoP/MAC configuration, aims at stopping to depend on the firmware/bootloader configuration when using the PPv2 engine. With this series the PPv2 driver does not need to rely on a previous configuration, and dynamic reconfiguration while the kernel is running can be done (i.e. switch one port from SGMII to 10G, or the opposite). A port can now be configured in a different mode than what's done in the firmware/bootloader as well. The series first contain patches in the generic PHY framework to support what is called the comphy (common PHYs), which is an h/w block providing PHYs that can be configured in various modes ranging from SGMII, 10G to SATA and others. As of now only the SGMII and 10G modes are supported by the comphy driver. Then patches are modifying the PPv2 driver to first add the comphy initialization sequence (i.e. calls to the generic PHY framework) and to then take advantage of this to allow dynamic reconfiguration (i.e. configuring the mode of a port given what's connected, between sgmii and 10G). Note the use of the comphy in the PPv2 driver is kept optional (i.e. if not described in dt the driver still as before an relies on the firmware/bootloader configuration). Finally there are dt/defconfig patches to describe and take advantage of this. This was tested on a range of devices: 8040-db, 8040-mcbin and 7040-db. @Dave: the dt patches should go through the mvebu tree (patches 9-13). Thanks! Antoine Since v3: - Now use of_phy_simple_xlate() to retrieve the phy. - Added an owner in the phy_ops structure. - Now allow the module to be selected with COMPILE_TEST. - Removed unused parameter in the comphy set_mode functions. - Added Kishon Acked-by in patch 1. Since v2: - Kept the link mode enforcement. - Removed the netif_running() check. - Reworded the "dynamic reconfiguration of the PHY mode" commit log. - Added one patch not to force the GMAC autoneg parameters when using the XLG MAC. Since v1: - Updated the mode settings variable name in the comphy driver to have 'cp110' in it. - Documented the PHY cell argument in the dt documentation. - New patch adding comphy phandles for the 7040-db board. - Checked if the carrier_on/off functions were needed. They are. - s/PHY/generic PHY/ in commit log of patch 1. - Rebased on the latest net-next/master. ==================== Signed-off-by: -
Antoine Tenart authored
This patch adds logic to reconfigure the comphy/GoP/MAC when the link state is updated at runtime. This is very useful on boards where many link speed are supported: depending on what is negotiated the PPv2 driver will automatically reconfigures the link between the PHY and the MAC. Signed-off-by:
Antoine Tenart <antoine.tenart@free-electrons.com> Signed-off-by:
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Antoine Tenart authored
When using the XLG MAC, it does not make sense to force the GMAC autoneg parameters. This patch adds checks to only set the GMAC autoneg parameters when needed (i.e. when not using the XLG MAC). Signed-off-by:
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Antoine Tenart authored
When the link status changes, the phylib calls the link_event function in the mvpp2 driver. Before this patch only the egress/ingress transmit was enabled/disabled. This patch adds more functionality to the link status management code by enabling/disabling the port per-cpu interrupts, and the port itself. The queues are now stopped as well, and the netif carrier helpers are called. Signed-off-by:
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Antoine Tenart authored
The link_event function is somewhat complicated. This cosmetic patch simplifies it. Signed-off-by:
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Antoine Tenart authored
On some platforms, the comphy is between the MAC GoP and the PHYs. The mvpp2 driver currently relies on the firmware/bootloader to configure the comphy. As a comphy driver was added to the generic PHY framework, this patch uses it in the mvpp2 driver to configure the comphy at boot time to avoid relying on the bootloader. Signed-off-by:
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Antoine Tenart authored
The Marvell Armada 7K/8K SoCs contains an hardware block called COMPHY that provides a number of shared PHYs used by various interfaces in the SoC: network, SATA, PCIe, etc. This Device Tree binding allows to describe this COMPHY hardware block. Signed-off-by:
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Antoine Tenart authored
On the CP110 unit, which can be found on various Marvell platforms such as the 7k and 8k (currently), a comphy (common PHYs) hardware block can be found. This block provides a number of PHYs which can be used in various modes by other controllers (network, SATA ...). These common PHYs must be configured for the controllers using them to work correctly either at boot time, or when the system runs to switch the mode used. This patch adds a driver for this comphy hardware block, providing callbacks for the its PHYs so that consumers can configure the modes used. As of this commit, two modes are supported by the comphy driver: sgmii and 10gkr. Signed-off-by:
Kishon Vijay Abraham I <kishon@ti.com> Signed-off-by:
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Antoine Tenart authored
This patch adds more generic PHY modes to the phy_mode enum, to allow configuring generic PHYs to the SGMII and/or the 10GKR mode by using the set_mode callback. Signed-off-by:
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Stefan Sørensen authored
We should not hold a spinlock while pushing the skb into the networking stack, so move the call to netif_rx_ni out of the critical region to where we have dropped the spinlock. Signed-off-by:
Stefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by:
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David S. Miller authored
Chris Mi says: ==================== net/sched: Improve getting objects by indexes Using current TC code, it is very slow to insert a lot of rules. In order to improve the rules update rate in TC, we introduced the following two changes: 1) changed cls_flower to use IDR to manage the filters. 2) changed all act_xxx modules to use IDR instead of a small hash table But IDR has a limitation that it uses int. TC handle uses u32. To make sure there is no regression, we add several new IDR APIs to support unsigned long. v2 == Addressed Hannes's comment: express idr_alloc in terms of idr_alloc_ext and most of the other functions ==================== Signed-off-by: -
Chris Mi authored
Typically, each TC filter has its own action. All the actions of the same type are saved in its hash table. But the hash buckets are too small that it degrades to a list. And the performance is greatly affected. For example, it takes about 0m11.914s to insert 64K rules. If we convert the hash table to IDR, it only takes about 0m1.500s. The improvement is huge. But please note that the test result is based on previous patch that cls_flower uses IDR. Signed-off-by:
Chris Mi <chrism@mellanox.com> Signed-off-by:
Jiri Pirko <jiri@mellanox.com> Acked-by:
Jamal Hadi Salim <jhs@mojatatu.com> Signed-off-by:
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Chris Mi authored
Currently, all filters with the same priority are linked in a doubly linked list. Every filter should have a unique handle. To make the handle unique, we need to iterate the list every time to see if the handle exists or not when inserting a new filter. It is time-consuming. For example, it takes about 5m3.169s to insert 64K rules. This patch changes cls_flower to use IDR. With this patch, it takes about 0m1.127s to insert 64K rules. The improvement is huge. But please note that in this testing, all filters share the same action. If every filter has a unique action, that is another bottleneck. Follow-up patch in this patchset addresses that. Signed-off-by:
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Chris Mi authored
The following new APIs are added: int idr_alloc_ext(struct idr *idr, void *ptr, unsigned long *index, unsigned long start, unsigned long end, gfp_t gfp); void *idr_remove_ext(struct idr *idr, unsigned long id); void *idr_find_ext(const struct idr *idr, unsigned long id); void *idr_replace_ext(struct idr *idr, void *ptr, unsigned long id); void *idr_get_next_ext(struct idr *idr, unsigned long *nextid); Signed-off-by: -
David S. Miller authored
Subash Abhinov Kasiviswanathan says: ==================== net: Add support for rmnet driver This patch series adds support for the rmnet driver which is required to support recent chipsets using Qualcomm Technologies, Inc. modems. The data from hardware follows the multiplexing and aggregation protocol (MAP). This driver can be used to register onto any physical network device in IP mode. Physical transports include USB, HSIC, PCIe and IP accelerator. rmnet driver helps to decode these packets and queue them to network stack (and encode and transmit it to the physical device). v1: Same as the RFC patch with some minor fixes for issues reported by kbuild test robot. v1->v2: Change datatypes and remove config IOCTL as mentioned by David. Also fix checkpatch issues and remove some unused code. v2->v3: Move location to drivers/net and rename to rmnet. Change the userspace - netlink communication from custom netlink to rtnl_link_ops. Refactor some code. Use a fixed config for ingress and egress. v3->v4: Move location to drivers/net/ethernet/qualcomm/. Fix comments from Stephen and Jiri - Split the ether and arp type changes into seperate patches. Remove debug and custom logging and switch to standard netdevice log. Remove module parameters. Refactor and change some code style issues. v4->v5: Rename some structs and variables. Move the initializer before the for loop start. Put the arp type in correct sequence. v5->v6: Fix comments from Dan - Use the upper link API. As a result, remove all the refcounting logic. Device refcount is explicitly held on real_dev on rx_handler registration only. Modifiy the flow control struct. Remove the unused ethernet mode handling. v6->v7: Fix comments from David - Add newline to end of Makefile. Remove inline from .c files. Move the module init/exit to rmnet config. Fix an error reported by kbuild test robot for an unused file. v7->v8: Use a smaller value for ETH_P_MAP as mentioned by David. Change netdev_info to netdev_dbg as mentioned by Andew. Fix comments from Stephen regarding netdev_priv and sparse related errors of using 0 as NULL v8->v9: Fix comments from David - Remove the CFLAG rule. Change the way rmnet devices are freed. Instead of using a workqueue to unregister devices individually, go through the list and free all devices within the rtnl_lock(). v9->v10: Actually fix the locking as mentioned by David. The locking scheme is mentioned in a comment in rmnet_config.c. Change comment near MAP type definition as mentioned by Dan. Refactor some code. v10->v11: Allow RMNET to compile as a module as mentioned by David ==================== Signed-off-by: -
Subash Abhinov Kasiviswanathan authored
RmNet driver provides a transport agnostic MAP (multiplexing and aggregation protocol) support in embedded module. Module provides virtual network devices which can be attached to any IP-mode physical device. This will be used to provide all MAP functionality on future hardware in a single consistent location. Signed-off-by:
Subash Abhinov Kasiviswanathan <subashab@codeaurora.org> Signed-off-by:
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Subash Abhinov Kasiviswanathan authored
Define the raw IP type. This is needed for raw IP net devices like rmnet. Signed-off-by:
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Subash Abhinov Kasiviswanathan authored
Define the Qualcomm multiplexing and aggregation (MAP) ether type 0x00F9. This is needed for receiving data in the MAP protocol like RMNET. This is not an officially registered ID. Signed-off-by:
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David S. Miller authored
Florian Westphal says: ==================== tcp: re-add header prediction Eric reported a performance regression caused by header prediction removal. We now call tcp_ack() much more frequently, for some workloads this brings in enough cache line misses to become noticeable. We could possibly still kill HP provided we find a different way to suppress unneeded tcp_ack, but given we're late in the cycle it seems preferable to revert. ==================== Signed-off-by: -
Florian Westphal authored
This reverts commit 45f119bf. Eric Dumazet says: We found at Google a significant regression caused by 45f119bf tcp: remove header prediction In typical RPC (TCP_RR), when a TCP socket receives data, we now call tcp_ack() while we used to not call it. This touches enough cache lines to cause a slowdown. so problem does not seem to be HP removal itself but the tcp_ack() call. Therefore, it might be possible to remove HP after all, provided one finds a way to elide tcp_ack for most cases. Reported-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
Florian Westphal <fw@strlen.de> Signed-off-by:
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Florian Westphal authored
This change was a followup to the header prediction removal, so first revert this as a prerequisite to back out hp removal. Signed-off-by:
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Greg KH authored
When moving the IRDA code out of net/ into drivers/staging/irda/net, the link order changes when IRDA is built into the kernel. That causes a kernel crash at boot time as netfilter isn't initialized yet. To fix this, move the init call level of the irda core to be device_initcall() as the link order keeps this being initialized at the correct time. Reported-by:
kernel test robot <fengguang.wu@intel.com> Reported-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
Greg Kroah-Hartman <gregkh@linuxfoundation.org> Signed-off-by:
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Florian Fainelli authored
A stray return was added in the macro bcmgenet_##name##_writel where it should not, drop it. Reported-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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- 29 Aug, 2017 13 commits
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Eric Dumazet authored
Florian reported UDP xmit drops that could be root caused to the too small neigh limit. Current limit is 64 KB, meaning that even a single UDP socket would hit it, since its default sk_sndbuf comes from net.core.wmem_default (~212992 bytes on 64bit arches). Once ARP/ND resolution is in progress, we should allow a little more packets to be queued, at least for one producer. Once neigh arp_queue is filled, a rogue socket should hit its sk_sndbuf limit and either block in sendmsg() or return -EAGAIN. Signed-off-by:
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Dave Jiang authored
Since the removal of NET_DMA, dmaengine.h header file shouldn't be needed by netdevice.h anymore. Signed-off-by:
Dave Jiang <dave.jiang@intel.com> Signed-off-by:
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Florian Fainelli authored
The GENET driver currently uses __raw_{read,write}l which means native I/O endian. This works correctly for an ARM LE kernel (default) but fails miserably on an ARM BE (BE8) kernel where registers are kept little endian, so replace uses with {read,write}l_relaxed here which is what we want because this is all performance sensitive code. Signed-off-by: -
Weilin Chang authored
Signed-off-by:
Weilin Chang <weilin.chang@cavium.com> Signed-off-by:
Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by:
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Bhumika Goyal authored
Make these const as they are not modified anywhere. Signed-off-by:
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David Ahern authored
Tariq repored local pings to linklocal address is failing: $ ifconfig ens8 ens8: flags=4163<UP,BROADCAST,RUNNING,MULTICAST> mtu 1500 inet 11.141.16.6 netmask 255.255.0.0 broadcast 11.141.255.255 inet6 fe80::7efe:90ff:fecb:7502 prefixlen 64 scopeid 0x20<link> ether 7c:fe:90:cb:75:02 txqueuelen 1000 (Ethernet) RX packets 12 bytes 1164 (1.1 KiB) RX errors 0 dropped 0 overruns 0 frame 0 TX packets 30 bytes 2484 (2.4 KiB) TX errors 0 dropped 0 overruns 0 carrier 0 collisions 0 $ /bin/ping6 -c 3 fe80::7efe:90ff:fecb:7502%ens8 PING fe80::7efe:90ff:fecb:7502%ens8(fe80::7efe:90ff:fecb:7502) 56 data bytes Signed-off-by: -
Tom Lendacky authored
There is a difference in the bit position of the normal interrupt summary enable (NIE) and abnormal interrupt summary enable (AIE) between revisions of the hardware. For older revisions the NIE and AIE bits are positions 16 and 15 respectively. For newer revisions the NIE and AIE bits are positions 15 and 14. The effect in changing the bit position is that newer hardware won't receive AIE interrupts in the current version of the driver. Specifically, the driver uses this interrupt to collect statistics on when a receive buffer unavailable event occurs and to restart the driver/device when a fatal bus error occurs. Update the driver to set the interrupt enable bit based on the reported version of the hardware. Signed-off-by:
Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by:
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David S. Miller authored
Jiri Benc says: ==================== nsh: headers, GSO This adds header structs and helpers for NSH together with GSO support. Note there is no code in this patchset that actually manipulates the NSH headers. That was sent to netdev by Yi Yang ("[PATCH net-next v6 0/3] openvswitch: add NSH support"). The aim of this series is to lay the groundwork and ease the implementation for him. In addition to openvswitch, the NSH support should be added to tc (flower to match, act_nsh to push/pop NSH headers). That will come later. There's currently no plan to support NSH by other means than those two. The patch 3 in this patchset was written by Yi Yang, I took it from the aforementioned series and slightly modified it - see the note in the patch. ==================== Signed-off-by: -
Jiri Benc authored
Add a new nsh/ directory. It currently holds only GSO functions but more will come: in particular, code shared by openvswitch and tc to manipulate NSH headers. For now, assume there's no hardware support for NSH segmentation. We can always introduce netdev->nsh_features later. Signed-off-by:
Jiri Benc <jbenc@redhat.com> Signed-off-by:
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Yi Yang authored
NSH (Network Service Header)[1] is a new protocol for service function chaining, it can be handled as a L3 protocol like IPv4 and IPv6, Eth + NSH + Inner packet or VxLAN-gpe + NSH + Inner packet are two typical use cases. This patch adds NSH header structures and helpers for NSH GSO support and Open vSwitch NSH support. [1] https://datatracker.ietf.org/doc/draft-ietf-sfc-nsh/ [Jiri: added nsh_hdr() helper and renamed the header struct to "struct nshhdr" to match the usual pattern. Removed packet type defines, these are now shared with VXLAN-GPE.] Signed-off-by:
Yi Yang <yi.y.yang@intel.com> Signed-off-by:
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Jiri Benc authored
The values are shared between VXLAN-GPE and NSH. Originally probably by coincidence but I notified both working groups about this last year and they seem to keep the values in sync since then. Hopefully they'll get a single IANA registry for the values, too. (I asked them for that.) Factor out the code to be shared by the NSH implementation. NSH and MPLS values are added in this patch, too. For MPLS, the drafts incorrectly assign only a single value, while we have two MPLS ethertypes. I raised the problem with both groups. For now, I assume the value is for unicast. Signed-off-by:
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Jiri Benc authored
The NSH draft says: An IEEE EtherType, 0x894F, has been allocated for NSH. Signed-off-by:
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David S. Miller authored
Alexander Aring says: ==================== tc: act_ife: handle IEEE IFE ethertype as default this patch series will introduce the IFE ethertype which is registered by IEEE. If the netlink act_ife type netlink attribute is not given it will use this value by default now. At least it will introduce some UAPI testcases to check if the default type is used if not specified and vice versa. ==================== Signed-off-by:
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