Add reporting via ifconfig:
--rx errors (counter RX PCS Errors from pstats)
--carrier (counter RX Sync Lost from pstats)

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Otherwise, the port files are empty, even if pstats/info is correct

  wrs-192.168.16.9#wc -c /proc/sys/pstats/*
      529 /proc/sys/pstats/description
        7 /proc/sys/pstats/info
        0 /proc/sys/pstats/port0
        0 /proc/sys/pstats/port1
        0 /proc/sys/pstats/port10
        0 /proc/sys/pstats/port11
        0 /proc/sys/pstats/port12
        0 /proc/sys/pstats/port13
        0 /proc/sys/pstats/port14
        0 /proc/sys/pstats/port15
        0 /proc/sys/pstats/port16
        0 /proc/sys/pstats/port17
        0 /proc/sys/pstats/port2
        0 /proc/sys/pstats/port3
        0 /proc/sys/pstats/port4
        0 /proc/sys/pstats/port5
        0 /proc/sys/pstats/port6
        0 /proc/sys/pstats/port7
        0 /proc/sys/pstats/port8
        0 /proc/sys/pstats/port9
      536 total

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

get rid of constants: PSTATS_CNT_PP and PSTATS_ADR_PP
Use number of ports read from FPGA instead of PSTATS_NUM_OF_COUNTERS

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Read is done at module init.

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Masking is not needed since uint32_t << 32 zero all lower bits.

Reported-by: Alessandro Rubini <rubini@gnudd.com>
Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Changes also in wr_pstats.
Wr_nic now calls callback function in wr_pstats to get counters

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Alessandro Rubini authored 10 years ago and Adam Wujek committed 10 years ago

By writing anything to a port file, you zero the counters for that
port. By writing to "info" or "description" you zero counters for
all ports.

Zeroing is performed by copying the current values to a new array,
and always subytracting that array to the current counter values.

No zeroing is performed for network statistics, that still reads
the "real" counters, featuring an overflow at 4G but no zeroing ever.

To simplify a little the code, I turned the one-dimensional array
with index arithmetics into a two-dimensional array, so the compiler
makes the math for us, transparently.

NOTE: the spinlock must be audited, we are not safe yet, not only
because of this patch.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Alessandro Rubini authored 10 years ago and Adam Wujek committed 10 years ago

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Signed-off-by: Adam Wujek <adam.wujek@cern.ch>

Alessandro Rubini authored 10 years ago and Adam Wujek committed 10 years ago

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

Grzegorz Daniluk authored 10 years ago and Alessandro Rubini committed 10 years ago

On higher storm of traffic, in the time between scheduling the tasklet and
executing it, I was loosing cntrs overflow information already (was overwritten
by all-the-time-incrementing counters in HDL).

Grzegorz Daniluk authored 10 years ago and Alessandro Rubini committed 10 years ago

File provides information about pstats version, number of counters per word
stored in memory and number of counters per each port.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

wr_nic now exports wr_nic_pstats_callback as a pointer. When wr_pstats
is loaded it writes its own pointer in there.

wr_nic can thus ask for statistics and updated net_device_stats with
the proper numbers.   The statistics on snmp reflect this, because
snmpd uses the standard device ioctl commands -- but very few of our
counters actually end up all the way to snmp.

Signed-off-by: Alessandro Rubini <rubini@gnudd.com>

PSTATS_NPORTS in the kernel driver should be set by default to 18 ports, because
it's also used to create a table for cntrs values read from FPGA. If driver is
supposed to run on 8-port version of WRS, the parameter pstats_nports should be
set at load time.

Maciej Lipinski authored 11 years ago and Grzegorz Daniluk committed 10 years ago

This commit is cherry-picked from v4-dev-rebased only for compatibility with
v4rc FPGA firmware. TRU event has to be removed both from gateware and software
for the final release.

Conflicts:

	userspace/tools/wrsw_pstats.c

Maciej Lipinski authored 11 years ago and Grzegorz Daniluk committed 10 years ago

Conflicts:

	userspace/tools/wrsw_pstats.c