Before it was in the reverse order.

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Add match reason to wrs_dump_shmem as sfp_match_flags.

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Please note, this commit changes the order in which options bytes are
displayed.

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

After reset of the CPU (ARM) GPIO pins are set as input. During
configuration they were set to 0, which had a meaning to the i2c
transfer if the last transfer before reset was not completed (e.g. by
the switch restart).

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

The I2C transfer can be interrupted by a restart of a switch. An I2C slave
is not aware about an ARM restart so it expect the continuation of the
transfer.

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

This commit reduces the size of periodic read for each SFP from 256B to 16B.
Since the I2C transfer are bit-banged, this commit reduces CPU
utilization if monitoring of SFPs is used (CONFIG_READ_SFP_DIAG_ENABLE).

Signed-off-by: Adam Wujek <dev_public@wujek.eu>

- Increase up to 18 the number of SFPs and Fibers
- Add config parameter: CONFIG_N_SFP_ENTRIES (Number of SFP entries in
the DB)
- Add config parameter: CONFIG_N_FIBER_ENTRIES (Number of FIBER entries
in the DB)
- This 2 new parameters are used by HAL to parse the DB
- Use the TX SFP wave length as a key to retreive the SFP entry in the
DB

Based on https://ta.snia.org/higherlogic/ws/public/download/294/SFF-8472.PDF


Paragraph 9.2 item 4 and 5.

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

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

For port configured as none, non-wr, auto use the same orange color.
Before none and auto were represented with the same color as master (yellow).

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

Paul Boven authored 8 years ago and Adam Wujek committed 8 years ago

The SFP documentation "INF-8047.pdf" states:
"The serial interface uses the 2-wire serial CMOS E2PROM protocol defined for
the ATMEL AT24C01A/02/04 family of components."

Upon reading that datasheet, some important details stand out:
1) The eeprom can only write in pages, with pages being 8 or 16 bytes. Assuming
   the smallest device, you can only write 8 bytes at a time. To be safe, I'm
   assuming a pagesize of 8 bytes.

   This explains why we only saw stuff change in the first 8 bytes, I guess.

2) A write needs to be preceded by the byte address which is a single byte for
   these devices, and then up to 8 (or 16) data bytes to be written at that
   location. If there are more bytes, or if the data wraps around the page
   binary, it will still only end up on the page belonging to that first
   address.

3) After writing, you need to poll the eeprom to see if it has finished writing
   the byte. At the moment, I'm not doing that yet, instead I'm doing a 10ms
   wait which seems sufficient.

Signed-off-by: Paul Boven <boven@jive.eu>
Acked-by: Adam Wujek <adam.wujek@cern.ch>

Kconfig:
--add CONFIG_READ_SFP_DIAG_ENABLE
libwr:
--add the function shw_sfp_update_dom to update only needed values in the future
--increase HAL_SHMEM_VERSION due to the changes in structures
wrs_dump_shmem
--add new fields
HAL:
--read DOM (Diagnostic Monitoring data) from SFP's eeprom at plug and once
  per second
PPSI:
--uplift hal shmem header
wrs_sfp_dump:
--support reading SFP's DOM from HAL

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

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

To be used by a tool wrs_sfp_dump

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

Zero also sfp->rx_wl (not only sfp->tx_wl) when wl_txrx not found for specific
SFP entry.

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>

Also be more verbosive about errors

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

From now, turn left LED on when link is up. Depending on the configured
function LED will have the following color:
--orange for port configured as non-wr
--green for slave
--yellow for master and other cases (like wrong configuration)

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

SFP matching is done by in order:
-vendor name, part number, serial
-vendor name, part number
-part number

If .config's entry (i.e. serial) is not empty match will happen only with
specific serial.

Additionally:
-Change default defines in Kconfig
-Update user manual with matching info
-Remove entry from wrs-todo about matching SFP vendor

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

Update dump_shmem accordingly.
Increment HAL_SHMEM_VERSION due to changes in shw_sfp_caldata structure.
Still missing matching based on vendor name and part number.
Update hal_shmem.h in ppsi

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

Remove spaces from read SFP header
-vendor_name
-vendor_pn
-vendor_serial

Don't read SFP header twice at hal_port_insert_sfp in hal_port. Before header
was read first in function shw_sfp_read_verify_header, then indirectly by
shw_sfp_get_cal_data

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>

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

delta_tx and delta_rx in the SFP information are differences from
the values in the "calibration" SFP model. Thus they are signed
not uint32_t.  Fortunately nobody used negative values so far.

I also renamed the fields, to ensure the compiler would find all uses.

The commit also syncs headers to ppsi, including the changes that
happened here but were irrelevant to there.

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

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

This replicates the bevaviour of previous code, unchanged. Only,
Kconfig is now used to specify the alpha for the pair of wavelengths
being used.

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

This commit uses dot-config (previous commit), in exactly the same way
as previous code. No change in behaviour is there, as confirmed by
looking at shared memory values.

However, the alpha value is not part of the SFP definition any more,
but it is part of the fiber type (later commits).  So it is currently
hardwired in the code, matching previous config values.

The data structures are slightly changed, so the version in shared memory
is increased too.  wrs_dump_shmem is updated at the same time
and ppsi is updated to get the new headers.

As a side effect, this uses calloc() instead of malloc(), and sets a
sensible (though unused) value in the "flags" field of the sfp data.

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

This is a completely automatic pass, before we start making order
in this library (note: there is a missing semicolon in pps_gen.c:82
but it will be fixed in a later commit -- the bug is in the macro
being called, so the missing semicolon is ok for the compiler).

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

This commit makes no changes, as shown by "git diff -w" before
committing, but blank spaces at end-of-line make my editor scream
(because I'm pedanting in not pushing those to the kernel).

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

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

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

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