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path: root/drivers/net/ethernet/broadcom/bnx2x/bnx2x_stats.h
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2019-06-29bnx2x: Prevent ptp_task to be rescheduled indefinitelyGuilherme G. Piccoli1-0/+3
Currently bnx2x ptp worker tries to read a register with timestamp information in case of TX packet timestamping and in case it fails, the routine reschedules itself indefinitely. This was reported as a kworker always at 100% of CPU usage, which was narrowed down to be bnx2x ptp_task. By following the ioctl handler, we could narrow down the problem to an NTP tool (chrony) requesting HW timestamping from bnx2x NIC with RX filter zeroed; this isn't reproducible for example with ptp4l (from linuxptp) since this tool requests a supported RX filter. It seems NIC FW timestamp mechanism cannot work well with RX_FILTER_NONE - driver's PTP filter init routine skips a register write to the adapter if there's not a supported filter request. This patch addresses the problem of bnx2x ptp thread's everlasting reschedule by retrying the register read 10 times; between the read attempts the thread sleeps for an increasing amount of time starting in 1ms to give FW some time to perform the timestamping. If it still fails after all retries, we bail out in order to prevent an unbound resource consumption from bnx2x. The patch also adds an ethtool statistic for accounting the skipped TX timestamp packets and it reduces the priority of timestamping error messages to prevent log flooding. The code was tested using both linuxptp and chrony. Reported-and-tested-by: Przemyslaw Hausman <przemyslaw.hausman@canonical.com> Suggested-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: Guilherme G. Piccoli <gpiccoli@canonical.com> Acked-by: Sudarsana Reddy Kalluru <skalluru@marvell.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-07-22bnx2x: Rebrand from 'broadcom' into 'qlogic'Yuval Mintz1-1/+3
bnx2x still appears as a Broadcom driver even though the devices it utilizes belong to Qlogic for more than a year. This patch changes the various headers and the device strings to indicate the correct ownership of the device. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2015-03-23bnx2x: Fix statistics locking schemeYuval Mintz1-3/+3
Statistics' state-machine in bnx2x driver must be synced with various driver flows, but its current locking scheme manages to be wasteful [using 2 locks + additional local variable] and prone to race-conditions at the same time, as the state-machine and 'action' are being accessed under different locks. In addition, current 'safe exec' isn't in fact safe, since the only guarantee it gives is that DMA transactions are over, but ramrods might still be running. This patch cleans up said logic, leaving us with a single lock for the entire flow and removing the possible races. Changes from v2: - Switched into mutex locking from semaphore locking. - Release locks on error flows. Changes from v1: Failure to acquire lock fails flow instead of printing a warning and allowing access to the critical section. Signed-off-by: Yuval Mintz <Yuval.Mintz@qlogic.com> Signed-off-by: Ariel Elior <Ariel.Elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2014-05-30bnx2x: update MAINTAINERS for bnx2x and e-mail addressesAriel Elior1-1/+1
The bnx2x development team has transferred from Broadcom to Qlogic. This patch updates some obsolete email addresses to usable ones. The bnx2x files contain headers with legal information from Broadcom. Qlogic Legal depratment is taking their time coming up with their own legal info. So this patch only updates contact information. I will follow up with a patch for the headers once I have the required info. Signed-off-by: Ariel Elior <ariel.elior@qlogic.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-08-27bnx2x: Fix VF stats syncAriel Elior1-0/+3
Since the PF gathers statistics for the VF, when the VF is about to unload we must synchronize the release of its statistics buffer with the PF, so that no DMA operation will be made to that address after the buffer release. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-06-02bnx2x: Semantic change of empty linesYuval Mintz1-4/+0
This patch removes unnecessary blank lines and adds a few where such are needed (between variable declarations and code) Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-27bnx2x: Fix VF statisticsAriel Elior1-1/+1
After a VF performs load/unload its statistics become corrupt - we now zero the statistics structures upon a VF device load. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-03-18bnx2x: fix occasional statistics off-by-4GB errorMaciej Żenczykowski1-1/+2
The UPDATE_QSTAT function introduced on February 15, 2012 in commit 1355b704b9ba "bnx2x: consistent statistics after internal driver reload" incorrectly fails to handle overflow during addition of the lower 32-bit field of a stat. This bug is present since 3.4-rc1 and should thus be considered a candidate for stable 3.4+ releases. Google-Bug-Id: 8374428 Signed-off-by: Maciej Żenczykowski <maze@google.com> Cc: Mintz Yuval <yuvalmin@broadcom.com> Acked-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-23bnx2x: Remove many sparse warningsYuval Mintz1-4/+7
Remove most of the sparse warnings in the bnx2x compilation (i.e., thus resulting when compiling with `C=2 CF=-D__CHECK_ENDIAN__'). Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2013-01-15bnx2x: Introduce 2013 and advance version to 1.78.02Yuval Mintz1-1/+1
Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-12-02bnx2x: Filter packets on FCoE ringsDmitry Kravkov1-0/+3
Whenever bnx2x fails to transmit a packet due to a full Tx ring, if the ring size is zero (indicating an FCoE ring) driver filters the packet out and gracefully continues. Driver also gathers statistics on such filtered packets. Signed-off-by: Dmitry Kravkov <dmitry@broadcom.com> Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-06-07bnx2x: Added EEE supportYuval Mintz1-0/+2
This patch adds energy efficient energy support (802.3az) to bnx2x boards with 84833 phys (and sufficiently new BC and external FW). Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-04-23bnx2x: add afex supportBarak Witkowski1-0/+15
Following patch adds afex multifunction support to the driver (afex multifunction is based on vntag header) and updates FW version used to 7.2.51. Support includes the following: 1. Configure vif parameters in firmware (default vlan, vif id, default priority, allowed priorities) according to values received from NIC. 2. Configure FW to strip/add default vlan according to afex vlan mode. 3. Notify link up to OS only after vif is fully initialized. 4. Support vif list set/get requests and configure FW accordingly. 5. Supply afex statistics upon request from NIC. 6. Special handling to L2 interface in case of FCoE vif. Signed-off-by: Barak Witkowski <barak@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-03-19bnx2x: consistent statistics for old FWYuval Mintz1-6/+1
Previously applied patch making the bnx2x statistics consistent did not apply to old FWs. This remedies it, extending the consistent behaviour to all drivers. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Reported-by: Michal Schmidt <mschmidt@redhat.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-02-15bnx2x: consistent statistics after internal driver reloadMintz Yuval1-1/+147
Currently bnx2x statistics are reset by inner driver reload, e.g. by MTU change. This patch fixes this issue - from now on statistics should only be reset upon device closure. Thanks to Michal Schmidt <mschmidt@redhat.com> for his initial patch regarding this issue. Signed-off-by: Yuval Mintz <yuvalmin@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-26bnx2x: Update version to 1.72.0 and copyrightsAriel Elior1-1/+1
Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2012-01-26bnx2x: Recoverable and unrecoverable error statisticsAriel Elior1-0/+4
Add statistics for tracking parity errors from which we successfully recovered and those which were deemed unrecoverable. Signed-off-by: Ariel Elior <ariele@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-12-06bnx2x: add PFC statisticsBarak Witkowski1-0/+6
Add Priority flow control counters for ethtool -S. Signed-off-by: Barak Witkowski <barak@broadcom.com> Signed-off-by: Eilon Greenstein <eilong@broadcom.com> Signed-off-by: Michael Chan <mchan@broadcom.com> Signed-off-by: David S. Miller <davem@davemloft.net>
2011-08-10broadcom: Move the Broadcom driversJeff Kirsher1-0/+381
Moves the drivers for Broadcom devices into drivers/net/ethernet/broadcom/ and the necessary Kconfig and Makefile changes. CC: Eilon Greenstein <eilong@broadcom.com> CC: Michael Chan <mchan@broadcom.com> CC: Matt Carlson <mcarlson@broadcom.com> CC: Gary Zambrano <zambrano@broadcom.com> CC: "Maciej W. Rozycki" <macro@linux-mips.org> Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
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