- 20 Apr, 2018 10 commits
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David S. Miller authored
GhantaKrishnamurthy MohanKrishna says: ==================== tipc: Confgiuration of MTU for media UDP Systematic measurements have shown that an emulated MTU of 14k for UDP bearers is the optimal value for maximal throughput. Accordingly, the default MTU of UDP bearers is changed to 14k. We also provide users with a fallback option from this value, by providing support to configure MTU for UDP bearers. The following options are introduced which are symmetrical to the design of confguring link tolerance. - Configure media with new MTU value, which will take effect on links going up after the moment it was configured. Alternatively, the bearer has to be disabled and re-enabled, for existing links to reflect the configured value. - Configure bearer with new MTU value, which take effect on running links dynamically. Please note: - User has to change MTU at both endpoints, otherwise the link will fall back to smallest MTU after a reset. - Failover from a link with higher MTU to a link with lower MTU ==================== Signed-off-by:David S. Miller <davem@davemloft.net>
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GhantaKrishnamurthy MohanKrishna authored
Currently, we have option to configure MTU of UDP media. The configured MTU takes effect on the links going up after that moment. I.e, a user has to reset bearer to have new value applied across its links. This is confusing and disturbing on a running cluster. We now introduce the functionality to change the default UDP bearer MTU in struct tipc_bearer. Additionally, the links are updated dynamically, without any need for a reset, when bearer value is changed. We leverage the existing per-link functionality and the design being symetrical to the confguration of link tolerance. Acked-by:
Jon Maloy <jon.maloy@ericsson.com> Signed-off-by:
GhantaKrishnamurthy MohanKrishna <mohan.krishna.ghanta.krishnamurthy@ericsson.com> Signed-off-by:
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GhantaKrishnamurthy MohanKrishna authored
In previous commit, we changed the default emulated MTU for UDP bearers to 14k. This commit adds the functionality to set/change the default value by configuring new MTU for UDP media. UDP bearer(s) have to be disabled and enabled back for the new MTU to take effect. Acked-by:
Ying Xue <ying.xue@windriver.com> Acked-by:
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GhantaKrishnamurthy MohanKrishna authored
Currently, all bearers are configured with MTU value same as the underlying L2 device. However, in case of bearers with media type UDP, higher throughput is possible with a fixed and higher emulated MTU value than adapting to the underlying L2 MTU. In this commit, we introduce a parameter mtu in struct tipc_media and a default value is set for UDP. A default value of 14k was determined by experimentation and found to have a higher throughput than 16k. MTU for UDP bearers are assigned the above set value of media MTU. Acked-by:
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Intiyaz Basha authored
Added the ndo to gather VF statistics through the PF. Collect VF statistics via mailbox from VF. Signed-off-by:
Intiyaz Basha <intiyaz.basha@cavium.com> Signed-off-by:
Felix Manlunas <felix.manlunas@cavium.com> Signed-off-by:
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David S. Miller authored
Kunihiko Hayashi says: ==================== ave: fix the activation issues for some UniPhier SoCs This add the following stuffs to fix the activation issues and satisfy requirements for AVE ethernet driver implemented on some UniPhier SoCs. - Add support for additional necessary clocks and resets, because the kernel is stalled on Pro4 due to lack of them. - Check whether the SoC supports the specified phy-mode - Add DT property support indicating system controller that has the feature for configurating phy-mode including built-in phy on LD11. v1: https://www.spinics.net/lists/netdev/msg494904.html Changes since v1: - Add 'Reviewed-by' lines ==================== Signed-off-by:
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Kunihiko Hayashi authored
This patch adds support for specifying system controller that configures phy-mode setting. According to the DT property "phy-mode", it's necessary to configure the controller, which is used to choose the settings of the MAC suitable, for example, mdio pin connections, internal clocks, and so on. Supported phy-modes are SoC-dependent. The driver allows phy-mode to set "internal" if the SoC has a built-in PHY, and {"mii", "rmii", "rgmii"} if the SoC supports each mode. So we have to check whether the phy-mode is valid or not. This adds the following features for each SoC: - check whether the SoC supports the specified phy-mode - configure the controller accroding to phy-mode The DT property accepts one argument to distinguish them for multiple MAC instances. ethernet@65000000 { ... socionext,syscon-phy-mode = <&soc_glue 0>; }; ethernet@65200000 { ... socionext,syscon-phy-mode = <&soc_glue 1>; }; Signed-off-by:Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Signed-off-by:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-by:
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Kunihiko Hayashi authored
Add "socionext,syscon-phy-mode" property to specify system controller that configures the settings about phy-mode. Signed-off-by:
Rob Herring <robh@kernel.org> Signed-off-by:
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Kunihiko Hayashi authored
When the link is becoming up for Pro4 SoC, the kernel is stalled due to some missing clocks and resets. The AVE block for Pro4 is connected to the GIO bus in the SoC. Without its clock/reset, the access to the AVE register makes the system stall. In the same way, another MAC clock for Giga-bit Connection and the PHY clock are also required for Pro4 to activate the Giga-bit feature and to recognize the PHY. To satisfy these requirements, this patch adds support for multiple clocks and resets, and adds the clock-names and reset-names to the binding because we need to distinguish clock/reset for the AVE main block and the others. Also, make the resets a required property. Currently, "reset is optional" relies on that the bootloader or firmware has deasserted the reset before booting the kernel. Drivers should work without such expectation. Fixes: 4c270b55 ("net: ethernet: socionext: add AVE ethernet driver") Suggested-by:
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Andrew Lunn authored
mdiobus_register will search for any mdiobus board info registered for the bus being registered. If found, it will probe devices on the bus. That device, if for example it is an ethernet switch, may then try to register an mdio bus. Thus we need to allow recursive calls to mdiobus_register. Holding the mdio_board_lock will cause a deadlock during this recursion. Release the lock and use list_for_each_entry_safe. Signed-off-by:
Andrew Lunn <andrew@lunn.ch> Signed-off-by:
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- 19 Apr, 2018 30 commits
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David S. Miller authored
Michael Schmitz says: ==================== New network driver for Amiga X-Surf 100 (m68k) [This is a resend of my v3 series which was based on the wrong version and tree. Only substantial change is to Asix AX99796B PHY driver.] This patch series adds support for the Individual Computers X-Surf 100 network card for m68k Amiga, a network adapter based on the AX88796 chip set. The driver was originally written for kernel version 3.19 by Michael Karcher (see CC:), and adapted to 4.16+ for submission to netdev by me. Questions regarding motivation for some of the changes are probably best directed at Michael Karcher. The driver has been tested by Adrian <glaubitz@physik.fu-berlin.de> who will send his Tested-by tag separately. A few changes to the ax88796 driver were required: - to read the MAC address, some setup of the ax99796 chip must be done, - attach to the MII bus only on device open to allow module unloading, - allow to supersede ax_block_input/ax_block_output by card-specific optimized code, - use an optional interrupt status callback to allow easier sharing of the card interrupt, - set IRQF_SHARED if platform IRQ resource is marked shareable The Asix Electronix PHY used on the X-Surf 100 is buggy, and causes the software reset to hang if the previous command sent to the PHY was also a soft reset. This bug requires addition of a PHY driver for Asix PHYs to provide a fixed .soft_reset function, included in this series. Some additional cleanup: - do not attempt to free IRQ in ax_remove (complements 82533ad9), - clear platform drvdata on probe fail and module remove. Changes since v1: Raised in review by Andrew Lunn: - move MII code around to avoid need for forward declaration, - combine patches 2 and 7 to add cleanup in error path Changes since v2: - corrected authorship attribution to Michael Karcher Suggested by Geert Uytterhoeven: - use ei_local->reset_8390() instead of duplicating ax_reset_8390(), - use %pR to format struct resource pointers, - assign pdev and xs100 pointers in declaration, - don't split error messages, - change Kconfig logic to only require XSURF100 set on Amiga Suggested by Andrew Lunn: - add COMPILE_TEST to ax88796 Kconfig options, - use new Asix PHY driver for X-Surf 100 Suggested by Andrew Lunn/Finn Thain: - declare struct sk_buff in ax88796.h, - correct whitespace error in ax88796.h Changes since v3: - various checkpatch cleanup Andrew Lunn: - don't duplicate genphy_soft_reset in Asix PHY driver, just call genphy_soft_reset after writing zero to control register ==================== Signed-off-by:
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Michael Karcher authored
Add platform device driver to populate the ax88796 platform data from information provided by the XSurf100 zorro device driver. The ax88796 module will be loaded through this module's probe function. Signed-off-by:
Michael Karcher <kernel@mkarcher.dialup.fu-berlin.de> Signed-off-by:
Michael Schmitz <schmitzmic@gmail.com> Signed-off-by:
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Michael Schmitz authored
The net device struct pointer is stored as platform device drvdata on module probe - clear the drvdata entry on probe fail there, as well as when unloading the module. Signed-off-by:
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Michael Karcher authored
On the Amiga X-Surf100, the network card interrupt is shared with many other interrupt sources, so requires the IRQF_SHARED flag to register. Signed-off-by:
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Michael Karcher authored
To be able to tell the ax88796 driver whether it is sensible to enter the 8390 interrupt handler, an "is this interrupt caused by the 88796" callback has been added to the ax_plat_data structure (with NULL being compatible to the previous behaviour). Signed-off-by:
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Michael Karcher authored
Add platform specific hooks for block transfer reads/writes of packet buffer data, superseding the default provided ax_block_input/output. Currently used for m68k Amiga XSurf100. Signed-off-by:
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Michael Karcher authored
This complements the fix in 82533ad9 ("net: ethernet: ax88796: don't call free_irq without request_irq first") that removed the free_irq call in the error path of probe, to also not call free_irq when remove is called to revert the effects of probe. Fixes: 82533ad9 (net: ethernet: ax88796: don't call free_irq without request_irq first) Signed-off-by:
Geert Uytterhoeven <geert@linux-m68k.org> Signed-off-by:
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Michael Karcher authored
Call ax_mii_init in ax_open(), and unregister/remove mdiobus resources in ax_close(). This is needed to be able to unload the module, as the module is busy while the MII bus is attached. Signed-off-by:
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Michael Karcher authored
To read the MAC address from the (virtual) SAprom, the remote DMA unit needs to be set up like for every other process access to card-local memory. Signed-off-by:
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Michael Schmitz authored
The Asix Electronics PHY found on the X-Surf 100 Amiga Zorro network card by Individual Computers is buggy, and needs the reset bit toggled as workaround to make a PHY soft reset succeed. Add workaround driver just for this special case. Suggested in xsurf100 patch series review by Andrew Lunn <andrew@lunn.ch> Signed-off-by:
Florian Fainelli <f.fainelli@gmail.com> Signed-off-by:
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David S. Miller authored
Andrew Lunn says: ==================== Modernize mdio-gpio This patchset is inspired by a previous version by Linus Walleij It reworks the mdio-gpio code to make use of gpio descriptors instead of gpio numbers. However compared to the previous version, it retains support for platform devices. It does however remove the platform_data header file. The needed GPIOs are now passed by making use of a gpiod lookup table. e.g: static struct gpiod_lookup_table zii_scu_mdio_gpiod_table = { .dev_id = "mdio-gpio.0", .table = { GPIO_LOOKUP_IDX("gpio_ich", 17, NULL, MDIO_GPIO_MDC, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("gpio_ich", 2, NULL, MDIO_GPIO_MDIO, GPIO_ACTIVE_HIGH), GPIO_LOOKUP_IDX("gpio_ich", 21, NULL, MDIO_GPIO_MDO, GPIO_ACTIVE_LOW), }, }; ==================== Signed-off-by: -
Andrew Lunn authored
The platform data header file is now unused. Remove it, but add an extra include which it brought in. Signed-off-by:
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Andrew Lunn authored
The GPIOs are described in device tree using a list, without names. Add defines to indicate what each index in the list means. These defines should also be used by platform devices passing GPIOs via a GPIO lookup table. Signed-off-by:
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Andrew Lunn authored
The same parsing code can be used for both OF and platform devices, if the platform device uses a gpiod_lookup_table. Parse these properties directly into the bitbang structure, rather than use an intermediate platform data structure. Signed-off-by:
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Andrew Lunn authored
Moving the allocation of this structure to the probe function is a step towards making it the core data structure of the driver. Signed-off-by:
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Andrew Lunn authored
This simplifies the code, removing the need to handle active low flags, etc. Signed-off-by:
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Andrew Lunn authored
No current devices use IRQs in platform data, so remove support for it. The MDIO core will also initialise the new bus such that all addresses are polled, so remove the unneeded re-initialisation. Signed-off-by:
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Andrew Lunn authored
This is not needed any more by devices using platform data, so remove it. Signed-off-by:
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Andrew Lunn authored
This is not needed any more by devices using platform data, so remove it. Signed-off-by:
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Andrew Lunn authored
The mdio-gpio driver was the only user of the interface reset option. Since it no longer uses it, remove it from the bit banging code. Signed-off-by:
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Andrew Lunn authored
The platform data can contain a function to call to reset the bit banging interface. It is not used, so remove it. Signed-off-by:
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Andrew Lunn authored
Seems like an old typ0. Signed-off-by:
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David S. Miller authored
David Ahern says: ==================== net/ipv6: followup to fib6_info change Followup to fib change for IPv6. First 2 patches rename fib6_info struct elements to match its name, and rename addrconf_dst_alloc to match what it returns. Patches 3-7 refactor the code to remove the need for fib6_idev reducing fib6_info by another 8 bytes to 200 bytes. Patch 8 fixes the gfp flags argument to addrconf_prefix_route in a couple of places. ==================== Signed-off-by: -
David Ahern authored
Eric noticed that __ipv6_ifa_notify is called under rcu_read_lock, so the gfp argument to addrconf_prefix_route can not be GFP_KERNEL. While scrubbing other calls I noticed addrconf_addr_gen has one place with GFP_ATOMIC that can be GFP_KERNEL. Fixes: acb54e3c ("net/ipv6: Add gfp_flags to route add functions") Reported-by: syzbot+2add39b05179b31f912f@syzkaller.appspotmail.com Reported-by:
Eric Dumazet <eric.dumazet@gmail.com> Signed-off-by:
David Ahern <dsahern@gmail.com> Signed-off-by:
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David Ahern authored
fib6_idev can be obtained from __in6_dev_get on the nexthop device rather than caching it in the fib6_info. Remove it. Signed-off-by:
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David Ahern authored
After 4832c30d ("net: ipv6: put host and anycast routes on device with address") the comparison of idev does not add value since it correlates to the nexthop device which is already compared. Remove the idev comparison. Signed-off-by:
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David Ahern authored
Prior to 4832c30d ("net: ipv6: put host and anycast routes on device with address") host routes and anycast routes were installed with the device set to loopback (or VRF device once that feature was added). In the older code dst.dev was set to loopback (needed for packet tx) and rt6i_idev was used to denote the actual interface. Commit 4832c30d changed the code to have dst.dev pointing to the real device with the switch to lo or vrf device done on dst clones. As a consequence of this change ip6_route_get_saddr can just pass the nexthop device to ipv6_dev_get_saddr. Signed-off-by:
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David Ahern authored
Prior to 4832c30d ("net: ipv6: put host and anycast routes on device with address") host routes and anycast routes were installed with the device set to loopback (or VRF device once that feature was added). In the older code dst.dev was set to loopback (needed for packet tx) and rt6i_idev was used to denote the actual interface. Commit 4832c30d changed the code to have dst.dev pointing to the real device with the switch to lo or vrf device done on dst clones. As a consequence of this change a couple of device checks during route lookups are no longer needed. Remove them. Signed-off-by:
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David Ahern authored
aca_idev has only 1 user - inet6_fill_ifacaddr - and it only wants the device index which can be extracted from the fib6_info nexthop. Signed-off-by:
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David Ahern authored
addrconf_dst_alloc now returns a fib6_info. Update the name and its users to reflect the change. Rename only; no functional change intended. Signed-off-by:
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