- 24 6月, 2017 1 次提交
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由 Richard Cochran 提交于
The function, skb_complete_tx_timestamp(), used to allow passing in a NULL pointer for the time stamps, but that was changed in commit 62bccb8c ("net-timestamp: Make the clone operation stand-alone from phy timestamping"), and the existing call sites, all of which are in the dp83640 driver, were fixed up. Even though the kernel-doc was subsequently updated in commit 7a76a021 ("net-timestamp: Update skb_complete_tx_timestamp comment"), still a bug fix from Manfred Rudigier came into the driver using the old semantics. Probably Manfred derived that patch from an older kernel version. This fix should be applied to the stable trees as well. Fixes: 81e8f2e9 ("net: dp83640: Fix tx timestamp overflow handling.") Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 4月, 2017 1 次提交
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由 Dan Carpenter 提交于
This patch is prompted by a static checker warning about a potential use after free. The concern is that netif_rx_ni() can free "skb" and we call it twice. When I look at the commit that added this, it looks like some stray lines were added accidentally. It doesn't make sense to me that we would recieve the same data two times. I asked the author but never recieved a response. I can't test this code, but I'm pretty sure my patch is correct. Fixes: 4b063258 ("dp83640: Delay scheduled work.") Signed-off-by: NDan Carpenter <dan.carpenter@oracle.com> Acked-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 11月, 2016 1 次提交
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由 Richard Cochran 提交于
The dp83640 has a frequency resolution of about 0.029 ppb. This patch lets users of the device benefit from the increased frequency resolution when tuning the clock. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 21 1月, 2016 1 次提交
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由 Manfred Rudigier 提交于
PHY status frames are not reliable, the PHY may not be able to send them during heavy receive traffic. This overflow condition is signaled by the PHY in the next status frame, but the driver did not make use of it. Instead it always reported wrong tx timestamps to user space after an overflow happened because it assigned newly received tx timestamps to old packets in the queue. This commit fixes this issue by clearing the tx timestamp queue every time an overflow happens, so that no timestamps are delivered for overflow packets. This way time stamping will continue correctly after an overflow. Signed-off-by: NManfred Rudigier <manfred.rudigier@omicron.at> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 1月, 2016 2 次提交
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由 Andrew Lunn 提交于
Rather than have each driver set the driver owner field, do it once in the core code. This will also help with later changes, when the device structure will move. Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Reviewed-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Andrew Lunn 提交于
Not all devices attached to an MDIO bus are phys. So add an mdio_device structure to represent the generic parts of an mdio device, and place this structure into the phy_device. Signed-off-by: NAndrew Lunn <andrew@lunn.ch> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 04 11月, 2015 4 次提交
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由 Stefan Sørensen 提交于
In the packet timestamping function, check that the ptp version and protocol of the packet matches what we have configured the hardware to actually generate timestamps for, before looking/waiting for a timestamp. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
The list of rx timestamps are currently only pruned of old entries when a new entry is inserted. If no new entries are added, old timestamps may survive beyond their lifetime, possible causing them to be attached to packets with the same sequence number after a rollover. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
Currently rx_timestamp_work reschedules itself as a regular workqueue item, effectively causing it run constantly as long as there are packets left in the queue. Fix by using delayed workqueue items, limiting it to run only every two jiffies. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
Only using the message type and sequence id for matching timestamps with packets is error prone, as multiple clients may very well be sending packets with the same messagetype and timestamp at the same time. Fix by extending the check to include the hash of bytes 20-29 (source id in PTPv2) that is provided with the timestamps. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 7月, 2015 1 次提交
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由 Jacob Keller 提交于
Signed-off-by: NJacob Keller <jacob.e.keller@intel.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NJeff Kirsher <jeffrey.t.kirsher@intel.com>
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- 26 5月, 2015 3 次提交
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由 Richard Cochran 提交于
A pair of nested spin locks was introduced in commit 63502b8d "dp83640: Fix receive timestamp race condition". Unfortunately the 'flags' parameter was reused for the inner lock, clobbering the originally saved IRQ state. This patch fixes the issue by changing the inner lock to plain spin_lock without irqsave. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
Callers of the ext_write function are supposed to hold a mutex that protects the state of the dialed page, but one caller was missing the lock from the very start, and over time the code has been changed without following the rule. This patch cleans up the call sites in violation of the rule. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
Currently, the calibration function that corrects the initial offsets among multiple devices only works the first time. If the function is called more than once, the calibration fails and bogus offsets will be programmed into the devices. In a well hidden spot, the device documentation tells that trigger indexes 0 and 1 are special in allowing the TRIG_IF_LATE flag to actually work. This patch fixes the issue by using one of the special triggers during the recalibration method. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 01 4月, 2015 1 次提交
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由 Richard Cochran 提交于
This device stores the number of seconds in a 32 bit register, and the stored value is unsigned. Therefore this driver and device are ready for the year 2038. However, more work will be needed prior to 2106. Compile tested only. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 07 3月, 2015 1 次提交
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由 Masanari Iida 提交于
This patch fix spelling typo in printk messages. Signed-off-by: NMasanari Iida <standby24x7@gmail.com> Acked-by: NRandy Dunlap <rdunlap@infradead.org> Signed-off-by: NJiri Kosina <jkosina@suse.cz>
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- 13 11月, 2014 1 次提交
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由 Richard Cochran 提交于
Commit ae5c6c6d "ptp: Classify ptp over ip over vlan packets" changed the code in two drivers that matches time stamps with PTP frames, with the goal of allowing VLAN tagged PTP packets to receive hardware time stamps. However, that commit failed to account for the VLAN header when parsing IPv4 packets. This patch fixes those two drivers to correctly match VLAN tagged IPv4/UDP PTP messages with their time stamps. This patch should also be applied to v3.17. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 09 9月, 2014 1 次提交
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由 Alexander Duyck 提交于
This change makes it so that dp83640_remove can use skb_queue_purge instead of looping through itself to flush any entries out of the queue. Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 9月, 2014 1 次提交
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由 Alexander Duyck 提交于
The phy timestamping takes a different path than the regular timestamping does in that it will create a clone first so that the packets needing to be timestamped can be placed in a queue, or the context block could be used. In order to support these use cases I am pulling the core of the code out so it can be used in other drivers beyond just phy devices. In addition I have added a destructor named sock_efree which is meant to provide a simple way for dropping the reference to skb exceptions that aren't part of either the receive or send windows for the socket, and I have removed some duplication in spots where this destructor could be used in place of sock_edemux. Signed-off-by: NAlexander Duyck <alexander.h.duyck@intel.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 8月, 2014 1 次提交
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由 Christian Riesch 提交于
Event timestamp status messages have a variable length, ranging from 1 to 5 words (16 bit words). The current code however requires a minimum message length of sizeof(*phy_txts). In most cases this condition is fulfilled due to padding bytes. However, if several events are signaled in a single message, padding bytes may not be present. For short event timestamp status messages, the length check will fail, and the event timestamp will be dropped. Signed-off-by: NChristian Riesch <christian.riesch@omicron.at> Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 23 7月, 2014 1 次提交
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由 Stefan Sørensen 提交于
When timestamping received packets, rx_timestamp_work may be scheduled before the timestamps is received from the hardware resulting in the packet beeing delivered without the timestamp. This is fixed by changing the receive timestamp path: On receiving a packet that need timestamping, the rxts list is traversed. If a match is found, packet+timestamp are delivered, otherwise the packet is added to a rx_queue. When a timestamp arrives rx_queue is traversed and if a matching packet is found, it is delivered with the timestamp. Otherwise the timestamp is added to the rxts list for matching with packets arriving later. In case the hardware drops a timestamp, a workqueue regularly checks the queue for old packets and delivers them without a timestamp. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 12 7月, 2014 1 次提交
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由 Stefan Sørensen 提交于
Event timestamp values should be adjusted by 3*reference clock period + 11 ns = 35 ns to compensate for input path and synchronization delays. So subtract 35ns from event timestamps. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 10 7月, 2014 1 次提交
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由 Stefan Sørensen 提交于
Currently status frames are only handled when packet timestamping is enabled, but status frames are also needed for pin event timestamping. Fix by moving packet timestamping check to after status frame decode. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 08 7月, 2014 1 次提交
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由 Stefan Sørensen 提交于
This extends the ptp bpf to also match ptp over ip over vlan packets. The ptp classes are changed to orthogonal bitfields representing version, transport and vlan values to simplify matching. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 7月, 2014 4 次提交
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由 Stefan Sørensen 提交于
For consistency, use the ptp_find_pin function to get the calibration pin, not gpio_tab. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
This constraints the pin assignment to not allow the calibration function to be reassigned and only allow reassigning the calibratin pin if only one phy is connected. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
This patch increases the number of supported periodic output pins from 1 to 7. The last pin is reserved for sync. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
Periodic output triggers 0 and 1 of the dp83640 has a programmable duty-cycle which is controlled by the Pulsewidth2 field of the trigger data register. This field is not documented in the datasheet, but it is described in the "PHYTER Software Development Guide" section 3.1.4.1. Failing to set the field can result in unstable/no trigger output. Add programming of the Pulsewidth2 field, setting it to the same value as the Pulsewidth field for a 50% duty cycle. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 02 4月, 2014 1 次提交
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由 Daniel Borkmann 提交于
This commit fixes a build error reported by Fengguang, that is triggered when CONFIG_NETWORK_PHY_TIMESTAMPING is not set: ERROR: "ptp_classify_raw" [drivers/net/ethernet/oki-semi/pch_gbe/pch_gbe.ko] undefined! The fix is to introduce its own file for the PTP BPF classifier, so that PTP_1588_CLOCK and/or NETWORK_PHY_TIMESTAMPING can select it independently from each other. IXP4xx driver on ARM needs to select it as well since it does not seem to select PTP_1588_CLOCK or similar that would pull it in automatically. This also allows for hiding all of the internals of the BPF PTP program inside that file, and only exporting relevant API bits to drivers. This patch also adds a kdoc documentation of ptp_classify_raw() API to make it clear that it can return PTP_CLASS_* defines. Also, the BPF program has been translated into bpf_asm code, so that it can be more easily read and altered (extensively documented in [1]). In the kernel tree under tools/net/ we have bpf_asm and bpf_dbg tools, so the commented program can simply be translated via `./bpf_asm -c prog` where prog is a file that contains the commented code. This makes it easily readable/verifiable and when there's a need to change something, jump offsets etc do not need to be replaced manually which can be very error prone. Instead, a newly translated version via bpf_asm can simply replace the old code. I have checked opcode diffs before/after and it's the very same filter. [1] Documentation/networking/filter.txt Fixes: 164d8c66 ("net: ptp: do not reimplement PTP/BPF classifier") Reported-by: NFengguang Wu <fengguang.wu@intel.com> Signed-off-by: NDaniel Borkmann <dborkman@redhat.com> Signed-off-by: NAlexei Starovoitov <ast@plumgrid.com> Cc: Richard Cochran <richardcochran@gmail.com> Cc: Jiri Benc <jbenc@redhat.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 22 3月, 2014 5 次提交
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由 Richard Cochran 提交于
This patch changes the driver use the new pin configuration method when programming the periodic output signal. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
This patch changes the driver to use the new pin configuration method when programming the external time stamp input signals. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
This patch adapts the dp83640 driver to allow reconfiguration of which auxiliary function goes on which pin. The functions may be reassigned freely with the one exception of the calibration function. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
The phyter driver incorrectly feeds the value of the period into what is in fact a pulse width register, resulting in the actual period being twice the dialed value. This patch fixes the issue and renames a variable to make the code at bit more clear. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Richard Cochran 提交于
This patch cleans up the input checking code on the external time stamp function by using an unsigned rather than a signed channel index. Also, this patch corrects the author's email address. When this macro was last changed, the top level domain part of the email address was left behind. Signed-off-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 14 2月, 2014 1 次提交
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由 Stefan Sørensen 提交于
phy_init_hw not does a full PHY reset after the driver probe has finished, so any hw initialization done in the probe will be lost. Part of the timestamping functionality of the dp83640 is set up in the probe and with that lost, enabling timestamping will cause a PHY lockup, requiring a hard reset / power cycle to recover. This patch moves all the HW initialization in dp83640_probe to dp83640_config_init. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 05 2月, 2014 3 次提交
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由 Stefan Sørensen 提交于
The trigger and events functionality can be useful even if packet timestamping is not used, but the required PTP clock is only enabled when packet timestamping is started. This patch moves the clock enable to when the interface is configured. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
Currently the external timestamping code is hardcoded to use the rising edge even though the hardware has configurable event edge detection. This patch changes the code to use falling edge detection if PTP_FALLING_EDGE is set in the user supplied flags. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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由 Stefan Sørensen 提交于
Set the SKBTX_IN_PROGRESS bit in tx_flags dp83640_txtstamp when doing tx timestamps as per Documentation/networking/timestamping.txt. Signed-off-by: NStefan Sørensen <stefan.sorensen@spectralink.com> Acked-by: NRichard Cochran <richardcochran@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 18 12月, 2013 1 次提交
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由 Florian Fainelli 提交于
Signed-off-by: NFlorian Fainelli <f.fainelli@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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- 06 12月, 2012 1 次提交
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由 Stephan Gatzka 提交于
Added functions for ack_interrupt and config_intr. Tested on an mpc5200b powerpc board. Signed-off-by: NStephan Gatzka <stephan.gatzka@gmail.com> Signed-off-by: NDavid S. Miller <davem@davemloft.net>
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