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path: root/drivers/net/ethernet/intel/igb/igb_ptp.c
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* igb: convert to CYCLECOUNTER_MASK macro.Richard Cochran2015-01-021-3/+2
| | | | | Signed-off-by: Richard Cochran <richardcochran@gmail.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb_ptp: Include clocksource.h to get CLOCKSOURCE_MASK.David S. Miller2014-12-311-0/+1
| | | | Signed-off-by: David S. Miller <davem@davemloft.net>
* net: igb: convert to timecounter adjtime.Richard Cochran2014-12-301-6/+1
| | | | | | | | | This patch changes the driver to use the new and improved method for adjusting the offset of a timecounter. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: separate hardware setting from the set_ts_config ioctlJacob Keller2014-06-111-12/+38
| | | | | | | | | | | This patch separates the hardware logic from the set function, so that we can re-use it during a ptp_reset. This enables the reset to return functionality to the last known timestamp mode, rather than resetting the value. We initialize the mode to off during the ptp_init cycle. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: rename igb_ptp_enable to igb_ptp_feature_enableJacob Keller2014-06-031-5/+5
| | | | | | | | | The name igb_ptp_enable is not synonymous with the purpose of this function, so rename it to better explain its purpose. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* e1000e/igb/ixgbe/i40e: fix message terminationsJakub Kicinski2014-04-181-2/+2
| | | | | | | | | | | Add \n at the end of messages where missing, remove all \r. Reported-by: Joe Perches <joe@perches.com> Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Tested-by: Phil Schmitt <phillip.j.schmitt@intel.com> Tested-by: Kavindya Deegala <kavindya.s.deegala@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: fix last_rx_timestamp usageJakub Kicinski2014-04-111-7/+7
| | | | | | | | | | | | last_rx_timestamp should be updated only when rx time stamp is read. Also it's only used with NICs that have per-interface time stamping resources so it can be moved to adapter structure and set in igb_ptp_rx_rgtstamp(). Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: fix race conditions on queuing skb for HW time stampJakub Kicinski2014-03-281-0/+3
| | | | | | | | | | igb has a single set of TX time stamping resources per NIC. Use a simple bit lock to avoid race conditions and leaking skbs when multiple TX rings try to claim time stamping. Signed-off-by: Jakub Kicinski <kubakici@wp.pl> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: implement SIOCGHWTSTAMP ioctlJacob Keller2014-03-211-14/+32
| | | | | | | | | | | | | | | | | This patch adds support for the SIOCGHWTSTAMP ioctl which enables user processes to read the current hwtstamp_config settings non-destructively. Previously a process had to be privileged and could only set values, it couldn't return what is currently set without possibly overwriting the value. This patch adds support for this new operation into igb by keeping a shadow copy of the config in the adapter structure, which is returned upon request. Signed-off-by: Jacob Keller <jacob.e.keller@intel.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add register defines needed for time sync functionsCarolyn Wyborny2014-03-191-2/+2
| | | | | | | | | | | This patch adds defines needed for implementing the auxiliary time sync functions and also changes code to call the updated defines instead of the old. Reported-by: Richard Cochran <ricahrdcochran@gmail.com> Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Update license text to remove FSF address and update copyright.Carolyn Wyborny2014-02-261-3/+2
| | | | | | | | | | This patch updates the license text to remove address of Free Software Foundation and refer users to www.gnu.org instead. This patch also updates the copyright dates in appropriate igb driver files. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: make local functions static and remove dead codeJeff Kirsher2014-02-261-2/+4
| | | | | | | | | | | Based on Stephen Hemminger's original patch. Make local functions static, and remove unused functions. Reported-by: Stephen Hemminger <stephen@networkplumber.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: Read register for latch_on without return valueAkeem G Abodunrin2013-08-221-4/+4
| | | | | | | | | This patch changes register read to "just-read" without returning a value for hardware to accurately latch the register value. Signed-off-by: Akeem G Abodunrin <akeem.g.abodunrin@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add support for i354 devicesCarolyn Wyborny2013-04-181-0/+4
| | | | | | | | This patch adds base support for new i354 devices. Loopback test is unsupported for this release. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Fix code comments and whitespaceJeff Kirsher2013-04-181-39/+18
| | | | | | | | | | | Aligns the multi-line code comments with the desired style for the networking tree. Also cleaned up whitespace issues found during the cleanup of code comments (i.e. remove unnecessary blank lines, use tabs where possible, properly wrap lines and keep strings on a single line) Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com>
* igb: fix PHC stopping on max freqJiri Benc2013-03-261-1/+1
| | | | | | | | | | | | | | | | | For 82576 MAC type, max_adj is reported as 1000000000 ppb. However, if this value is passed to igb_ptp_adjfreq_82576, incvalue overflows out of INCVALUE_82576_MASK, resulting in setting of zero TIMINCA.incvalue, stopping the PHC (instead of going at twice the nominal speed). Fix the advertised max_adj value to the largest value hardware can handle. As there is no min_adj value available (-max_adj is used instead), this will also prevent stopping the clock intentionally. It's probably not a big deal, other igb MAC types don't support stopping the clock, either. Signed-off-by: Jiri Benc <jbenc@redhat.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Use in-kernel PTP_EV_PORT #defineMatthew Vick2013-01-181-3/+3
| | | | | | | | | | | Rather than use an extra #define for something that already exists, use the kernel #define for the PTP port. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Free any held skb that should have been timestamped on removeMatthew Vick2013-01-181-0/+4
| | | | | | | | | | | | To prevent a race condition where an skb has been saved to return the Tx timestamp later and the driver is removed, add a check to determine if we have an skb stored and, if so, free it. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add mechanism for detecting latched hardware Rx timestampMatthew Vick2013-01-181-0/+45
| | | | | | | | | | | | | | | | | | | | | | | | Add a check against possible Rx timestamp freezing in the hardware via watchdog mechanism. This situation can occur when an Rx timestamp has been latched, but the packet has been dropped because the Rx ring is full. Whenever a packet comes in that should be timestamped, the Rx timestamp gets latched into the hardware registers and we will store the jiffy value in the rx_ring. The watchdog will keep track of his own jiffy timer whenever there is no valid timestamp in the registers. If the watchdog detects a valid timestamp in the registers, meaning that no Rx packet has consumed it yet, it will check which time is most recent: the last time in the watchdog or any time in the rx_rings. If the most recent "event" was more than 5 seconds ago, it will flush the Rx timestamp and print a warning message to the syslog. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add timeout for PTP Tx work itemMatthew Vick2013-01-181-0/+10
| | | | | | | | | | | | | | When transmitting a packet that must return a Tx timestamp, a work item gets scheduled to poll for the Tx timestamp being completed in hardware. Add a timeout on this work item of 15 seconds from when the driver gets the skb, after which it will stop polling. Report via stats and system log if this occurs. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <Jacob.e.keller@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Update PTP Rx filtersMatthew Vick2012-11-221-27/+20
| | | | | | | | | | | Update the filters to be more consistent with what the driver wants to do. For example, for devices that timestamp all packets, report that the filter is set for timestamping all packets. Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Fix sparse warning in igb_ptp_rx_pktstampAlexander Duyck2012-10-291-1/+1
| | | | | | | | | | This change fixes a sparse warning triggered by us casting the timestamp in the packet as a u64 instead of as a __le64. This change corrects that in order to resolve the sparse warning. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Split Rx timestamping into two separate functionsAlexander Duyck2012-10-191-17/+38
| | | | | | | | | | | | In order to support page based receive we will need to split up the two different types of timestamping into two separate functions. The first one will handle legacy timestamps with the value in the register, and the new one will handle timestamps in the Rx buffer itself. Signed-off-by: Alexander Duyck <alexander.h.duyck@intel.com> Acked-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* ptp: link the phc device to its parent deviceRichard Cochran2012-09-221-1/+2
| | | | | | | | | | | PTP Hardware Clock devices appear as class devices in sysfs. This patch changes the registration API to use the parent device, clarifying the clock's relationship to the underlying device. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Acked-by: Ben Hutchings <bhutchings@solarflare.com> Acked-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com> Signed-off-by: David S. Miller <davem@davemloft.net>
* igb: Add 1588 support to I210/I211.Matthew Vick2012-09-171-45/+171
| | | | | | | | | | | | Previously I210/I211 followed the same code flow as 82580/I350 for 1588. However, since the register sets have changed, we must update the implementation to accommodate the register changes. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Prevent dropped Tx timestamps via work items and interrupts.Matthew Vick2012-09-171-16/+86
| | | | | | | | | | | | | In rare circumstances, it's possible a descriptor writeback will occur before a timestamped Tx packet will go out on the wire, leading to the driver believing the hardware failed to timestamp the packet. Schedule a work item for 82576 and use the available time sync interrupt registers on 82580 and above to account for this. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Store the MAC address in the name in the PTP struct.Matthew Vick2012-09-171-4/+3
| | | | | | | | | | | Change the name of the adapter in the PTP struct to enable easier correlation between interface and PTP device. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Acked-by: Jacob Keller <jacob.e.keller@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Update PTP function names/variables and locations.Matthew Vick2012-09-171-118/+367
| | | | | | | | | | | Where possible, move PTP-related functions into igb_ptp.c and update the names of functions and variables to match the established coding style in the files and specify that they are PTP-specific. Cc: Richard Cochran <richardcochran@gmail.com> Signed-off-by: Matthew Vick <matthew.vick@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add switch case for supported hardware to igb_ptp_remove.Carolyn Wyborny2012-06-201-1/+11
| | | | | | | | | | PTP initialization is only done on supported parts, so remove needs same checks or it will cause crashes on systems with igb devices that don't support PTP. This patch adds those checks to the exit function. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: Add Support for new i210/i211 devices.Carolyn Wyborny2012-05-121-0/+4
| | | | | | | | | This patch adds new initialization functions and device support for i210 and i211 devices. Signed-off-by: Carolyn Wyborny <carolyn.wyborny@intel.com> Tested-by: Jeff Pieper <jeffrey.e.pieper@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: offer a PTP Hardware Clock instead of the timecompare methodRichard Cochran2012-04-041-0/+59
| | | | | | | | | This commit removes the legacy timecompare code from the igb driver and offers a tunable PHC instead. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
* igb: add PTP Hardware Clock codeRichard Cochran2012-04-041-0/+322
This patch adds a source file implementing a PHC. Only the basic clock operations have been implemented, although the hardware would offer some ancillary functions. The code is fairly self contained and is not yet used in the main igb driver. Every timestamp and clock read operation must consult the overflow counter to form a correct time value. Access to the counter is protected by a spin lock, and the counter is implemented using the standard cyclecounter/timecounter code. Signed-off-by: Richard Cochran <richardcochran@gmail.com> Tested-by: Aaron Brown <aaron.f.brown@intel.com> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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