Add a per port sysfs paramter to toggle cc_prescan/Fast ECN Detection and
remove the Kconfig option which was previously used to control this.
While am updating the sysfs documentation, fix the name of CCMgtA.
Reviewed-by: Arthur Kepner <arthur.kepner@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Vennila Megavannan <vennila.megavannan@intel.com>
Signed-off-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The RcvCtxtCtrl register was being incorrectly set upon context
initialization and clean up resulting, in many cases, of contexts using
settings from previous contexts' initialization. This resulted in bad
and unexpected behavior. This was especially important for the TailUpd
bit, which requires special handling and if set incorrectly could lead
to severely degraded performance.
This patch fixes the handling of the RcvCtxtCtrl register, ensuring that
each context gets initialized with settings applicable only for that
context. It also ensures the proper setting for the TailUpd bit by
setting it to either 0 or 1 (as needed by the context's configuration)
explicitly.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Mitko Haralanov <mitko.haralanov@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
When 32-bit hardware counters overflow, hfi1stats misinterprets
the counters as being 64 bits causing the deltas for the
counters to be a huge number. This patch makes hfi1stats
aware that a counter is 32 bits by making the driver write
<counter name>,32 to debugfs.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Sebastian Sanchez <sebastian.sanchez@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The simulator does not correctly handle LCB cclk loopback.
Skip that step for simulation - it is not needed.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Simulation has no firmware, so it will never move firmware
acquire to the FINAL state. Avoid that by skiping the TRY
state and moving directly to FINAL.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Loopback plugs used for testing hardware don't need to be qualified to
bring the link up unlike production cables. This patch adds an exception
for loopback plugs to the QSFP and SerDes tuning algortihm.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Make firmware validation failure and missing firmware messages
a warning since alternates can be tried. Add an error message
when all attempts fail.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Implement per-VL transmit counters. Not all errors can be
attributed to a particular VL, so make a best attempt.
o Extend the egress error bits used to count toward transmit
discard.
o When an egress error or send error occur, try to map back
to a VL.
o Implement a SDMA engine to VL (back) map.
o Add per-VL port transmit counters
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The gen3 bump code must mark a firmware download failure as fatal.
Otherwise a later load attempt will fail with a NULL dereference.
Also:
o Only do a firmware back-off for RTL. There are no alternates for
FPGA or simulation.
o Rearrange OS firmware request order to match what is actually
loaded. This results in more coherent informational messages
in the case of missing firmware.
Reviewed-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch implements support for turning on and off the clock data
recovery mechanisms implemented in QSFP cable on request by the DC 8051
on a per-lane basis.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The current code employs a heuristic to guess the port type.
The canonical location to identify the port type of the
designed platform is from the platform configuration data.
This patch uses the previously fetched port type from the platform
configuration and removes the now obsolete heuristic routine
and its associated defines.
Reviewed-by: Arthur Kepner <arthur.kepner@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch qualifies and tunes active and optical cables for optimal
bit error rate and signal integrity settings. These settings are
fetched from the platform configuration data.
Based on attributes of the QSFP cable as read from the SFF-8636
compliant memory map, we select the appropriate settings from the
platform configuration data (examples: TX/RX equalization, enabling
cable high power, enabling TX/RX clock data recovery mechanisms, and RX
amplitude control) and apply them to the SERDES and QSFP cable.
The platform configuration data also contains system parameters such
as maximum power dissipation supported, and the cables are qualified
based on these parameters. As part of qualifying the cables, the
correct OfflineDisabledReasons are set for the appropriate scenarios.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Brent R Rothermel <brent.r.rothermel@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
The QSFP memory cache reads both lower and upper page 0H in one shot,
which leads to the address counter wrapping around to the beginning of
lower page 00H at byte 128, as defined by SFF-8636.
This patch fixes this by modifying the underlying QSFP read and writes
to avoid this wrap around.
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Easwar Hariharan <easwar.hariharan@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Removing QSFP cable should report 'No Local Media' instead of
'Transient' as reported by 'opaportinfo'.
Workaround is to change the state to
OPA_LINKDOWN_REASON_LOCAL_MEDIA_NOT_INSTALLED in cable handler.
With cable still removed, 'opaportinfo bounce' should not cause a
state change to Polling, as reported by 'opaportinfo'.
Resolution is to prevent physical state change from Offline->Polling.
Use a macro to mask lower nibble of OPA_LINKDOWN_REASON* as needed
for offline_disabled_reason.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Reviewed-by: Easwar Hariharan <easwar.hariharan@intel.com>
Reviewed-by: Dean Luick <dean.luick@intel.com>
Reported-by: Todd Rimmer <todd.rimmer@intel.com>
Signed-off-by: Bryan Morgan <bryan.c.morgan@intel.com>
Signed-off-by: Jubin John <jubin.john@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
No longer do drivers need to call into the IB core to allocate the verbs
device. Use the functionality provided by rdmavt.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Now that rdmavt has solidified in its design we can clean up the driver
specific register device functions. This handles hfi1.
Reviewed-by: Ira Weiny <ira.weiny@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
This patch removes the simple post recv function in favor of using rdmavt.
The packet receive processing still lives in the driver though.
Reviewed-by: Harish Chegondi <harish.chegondi@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
In addition to removing the modify queue pair verb from hfi1 we also
remove ancillary functions which existed only for modify queue pair and
are also already present in hfi1.
Reviewed-by: Mike Marciniszyn <mike.marciniszyn@intel.com>
Signed-off-by: Dennis Dalessandro <dennis.dalessandro@intel.com>
Signed-off-by: Doug Ledford <dledford@redhat.com>
Vennila Megavannan
Mitko Haralanov
Sebastian Sanchez
Dean Luick
Easwar Hariharan
Mike Marciniszyn
Bryan Morgan
Jubin John
Harish Chegondi
Dennis Dalessandro