- 20 Apr, 2018 3 commits
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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:
Kunihiko Hayashi <hayashi.kunihiko@socionext.com> Reviewed-by:
Rob Herring <robh@kernel.org> Signed-off-by:
David S. Miller <davem@davemloft.net>
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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:
Masahiro Yamada <yamada.masahiro@socionext.com> Signed-off-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 37 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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David Ahern authored
Change the prefix for fib6_info struct elements from rt6i_ to fib6_. rt6i_pcpu and rt6i_exception_bucket are left as is given that they point to rt6_info entries. Rename only; not functional change intended. Signed-off-by:
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Eric Dumazet authored
After working on IP defragmentation lately, I found that some large packets defeat CHECKSUM_COMPLETE optimization because of NIC adding zero paddings on the last (small) fragment. While removing the padding with pskb_trim_rcsum(), we set skb->ip_summed to CHECKSUM_NONE, forcing a full csum validation, even if all prior fragments had CHECKSUM_COMPLETE set. We can instead compute the checksum of the part we are trimming, usually smaller than the part we keep. Signed-off-by:
Eric Dumazet <edumazet@google.com> Signed-off-by:
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Zhao Chen authored
This patch enables arm64 platform support for the HINIC driver. Signed-off-by:
Zhao Chen <zhaochen6@huawei.com> Signed-off-by:
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David S. Miller authored
Yuchung Cheng says: ==================== tracking TCP data delivery and ECN stats This patch series improve tracking the data delivery status 1. minor improvement on SYN data 2. accounting bytes delivered with CE marks 3. exporting the delivery stats to applications s.t. users can get better sense of TCP performance at per host, per connection, and even per application message level. ==================== Signed-off-by: -
Yuchung Cheng authored
Export data delivered and delivered with CE marks to 1) SNMP TCPDelivered and TCPDeliveredCE 2) getsockopt(TCP_INFO) 3) Timestamping API SOF_TIMESTAMPING_OPT_STATS Note that for SCM_TSTAMP_ACK, the delivery info in SOF_TIMESTAMPING_OPT_STATS is reported before the info was fully updated on the ACK. These stats help application monitor TCP delivery and ECN status on per host, per connection, even per message level. Signed-off-by:
Yuchung Cheng <ycheng@google.com> Reviewed-by:
Neal Cardwell <ncardwell@google.com> Reviewed-by:
Soheil Hassas Yeganeh <soheil@google.com> Reviewed-by:
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Yuchung Cheng authored
Introduce a new delivered_ce stat in tcp socket to estimate number of packets being marked with CE bits. The estimation is done via ACKs with ECE bit. Depending on the actual receiver behavior, the estimation could have biases. Since the TCP sender can't really see the CE bit in the data path, so the sender is technically counting packets marked delivered with the "ECE / ECN-Echo" flag set. With RFC3168 ECN, because the ECE bit is sticky, this count can drastically overestimate the nummber of CE-marked data packets With DCTCP-style ECN this should be reasonably precise unless there is loss in the ACK path, in which case it's not precise. With AccECN proposal this can be made still more precise, even in the case some degree of ACK loss. However this is sender's best estimate of CE information. Signed-off-by:
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Yuchung Cheng authored
Add new helper tcp_newly_delivered() to prepare the ECN accounting change. Signed-off-by:
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