There is no need to reserve any space for each frag, as the l2 will
allocate a frag for the ethernet header, arp will do the same.
This is one step further to removing the concept of ll reserve.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Update such statistic on all drivers.
Also, remove TX stats in native and stellaris drivers: such update is
done in L2 now.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Now instead of such path:
net_if_send_data -> L2's send -> net_if tx_queue -> net_if_tx -> driver
net_if's send
It will be:
net_if_send_data -> net_if tx_queue -> net_if_tx -> L2's send -> driver
net_if's send
Only Ethernet is adapted, but 15.4 and bt will follow up.
All Ethernet drivers are made compatible with that new scheme also.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Calculate proper initial PTP clock divisors based on the MCK value.
Additionally do not allow adjusting the rate of the clock. This does not
seem to work properly with current gPTP rate adjustment algorithm.
Having proper PTP clock divisors and callbacks that allow getting,
setting and adjusting current time is sufficient for proper gPTP
support.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Most of this code is unreachable with priority queues disabled because
of queue id validation.
Fixes#9295.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This is a finishing commit in 802.1Qav support for SAM GMAC. It adds a
possibility to get and set all parameters required by the standard.
Note that to be fully compliant it requires a proper system
configuration, but the prioritizing mechanisms will work just fine
without it so it is not enforced in any way.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
If the application is using TC configuration compatible with HW
configuration (equal number of traffic classes and hardware queues)
setup the screening registers and chose queues based on the chosen TC
mapping.
Use the VLAN priority and hard-coded mappings only as a fallback.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Updating Qav params made it implicitly enable the Qav support itself.
Since we can now control the on/off status with a management request,
this is not a desired behavior.
Make it read the original register value before updating params and then
writing back what it was before.
Additionally we now have to explicitly enable Qav support in init.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
The standard (and therefore the upper layer) is using bits per second,
the registers in SAM GMAC uses bytes per second - do the conversion
before writing the reg.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
There are too many individual requests for Qav related parameters. There
are more Qav parameters that need to be supported (and will be supported
soon - both on the GET and SET side). Handling it the way it was handled
so far would render the eth mgmt API dominated by Qav parameters. That
would make the file hard to read and understand.
Instead of that - use a single GET and SET requests for all Qav
parameters. This works by adding a separate enum with Qav request type
to the ethernet_qav_param struct.
Additionally this approach makes it much easier to document it all since
we now have just a single request and documentation comments in the
ethernet_qav_param struct.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This commit makes the driver enable HW Qav support for all available
priority queues.
Note that the hardware doesn't support setting the deltaBandwidth
parameter directly, but it is possible to do this by calculating it
from the negotiated link speed.
The default settings are set according to 802.1Qav 34.3.1, that says:
The recommended default value of deltaBandwidth(N) for the highest
numbered traffic class supported is 75%, and for any lower
numbered traffic classes, the recommended default value is 0%.
The default/recommended values can be changed using the ethernet
management API (set_config) - which this commit also adds.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Handle getting the number of priority queues. The total number of queues
for this driver is configured in kconfig so it is as simple as returning
a defined value in this case.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Use both PTP Peer Event and PTP Event timestamping registers when
necessary.
Also for non-PTP frames just use current time.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This commit adds support for multiple hardware TX and RX queues.
The number of the queues to use can be configured through defconfig.
Packets are sent and received through different hardware queues
depending on their priority.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This commit fixes how the registers values are calculated and makes sure
there is no overflow effect when converting back to int.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This commit makes the driver disallow drastic clock rate changes.
These changes happen mostly in the very beginning, when the timestamp in
hardware is zeroed.
In such cases the set callback is called soon after and fixes the large
offset. Without this limit the clock offset oscillates for a longer
period before it properly syncs as the requested ratio jumps between
very large and very small values.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This commit fixes a memory leak happening when both gPTP and VLAN are
enabled.
It also moves the get_iface function up in the file so it is accessible
earlier without a redundant function declaration.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This adds packet timestamping support to the GMAC driver.
It is based on the eth_native_posix and eth_mcux drivers.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
The pointers to pkt->frags->data are changed after transmitting.
Other layers (e.g. the gPTP drivers) assume that these will remain
unchanged. This patch adds a workaround for that issue and restores the
original pointers.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
This is needed to avoid compilation warnings when using both the
built-in libc and newlib.
The warnings were caused by typedefs incompatibilities.
This was agreed to be the temporary solution at the TSC.
See #8469 for more details.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Attempts to clear/invalidate caches which are disabled lead to BUS
FAULTS.
Ensure they are enabled before using them.
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
What needs to be done for the cache to work properly:
* Make sure cache operations are aligned to 32B
* Make sure to clean and invalidate the operations on gmac descriptors
(thus all the helper functions)
This commit is needed for SAM GMAC to work when caches are enabled and
MPU mapping is changed to cacheable (See #8185)
Signed-off-by: Tomasz Gorochowik <tgorochowik@antmicro.com>
Curently only link speed is exposed.
Opportunity taken to remove any post-fix enumerating the iface init
and/or the api: these must be generic and used by all the instances.
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Create infrastructure that allows ethernet device driver to tell
if it supports network packet checksum offloading. This applies only
to IPv4, UDP or TCP checksums. The driver can enable/disable checksum
offloading separately for Tx and Rx network packets.
If the device (ethernet in this case) can calculate the network
packet checksum for IPv4, UDP or TCP, then do not calculate the
corresponding checksum by the stack itself.
Fixes#2987
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
No need to verify that the configuration is proper if we are
compiling the driver for unit test and not going to ever run
the test.
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
The data fragments were stored in reversed order when the RX
data was saved into network buffers. This was caused by net_pkt
changes in commit db11fcd "net/net_pkt: Fully separate struct
net_pkt from struct net_buf".
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
This patch adds support for reading MAC address from I2C EEPROM.
Only chips with 7-bit I2C device address are supported.
Change-Id: Ibedc33e54e33bdb901840e104063e2f4752b9123
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Convert code to use u{8,16,32,64}_t and s{8,16,32,64}_t instead of C99
integer types.
Jira: ZEP-2051
Change-Id: I4ec03eb2183d59ef86ea2c20d956e5d272656837
Signed-off-by: Kumar Gala <kumar.gala@linaro.org>
- net_pkt becomes a stand-alone structure with network packet meta
information.
- network packet data is still managed through net_buf, mostly named
'frag'.
- net_pkt memory management is done through k_mem_slab
- function got introduced or relevantly renamed to target eithe net_pkt
or net_buf fragments.
- net_buf's sent_list ends up in net_pkt now, and thus helps to save
memory when TCP is enabled.
Change-Id: Ibd5c17df4f75891dec79db723a4c9fc704eb843d
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
There have been long lasting confusion between net_buf and net_nbuf.
While the first is actually a buffer, the second one is not. It's a
network buffer descriptor. More precisely it provides meta data about a
network packet, and holds the chain of buffer fragments made of net_buf.
Thus renaming net_nbuf to net_pkt and all names around it as well
(function, Kconfig option, ..).
Though net_pkt if the new name, it still inherit its logic from net_buf.
'
This patch is the first of a serie that will separate completely net_pkt
from net_buf.
Change-Id: Iecb32d2a0d8f4647692e5328e54b5c35454194cd
Signed-off-by: Tomasz Bursztyka <tomasz.bursztyka@linux.intel.com>
Check net_recv_data() return value, if it returns an error release
the net_buf. Based on a fix in eth_mcux driver.
Change-Id: I44ca5fd8dfb7175620b7e8850a68443100039db6
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Atmel SAM family GMAC Ethernet driver is implementing zero-copy
networking. As a result it has to reserve a defined amount of RX
data net buffers before bringing up the interface. Since net buffer
pool is initialized by the network stack and this driver was bringing
the interface up in its initialization function the driver initialization
was performed, as a workaround, after network stack initialization. It
is not a clean solution. This patch fixes this by bringing the
interface up in interface initialization function. The driver itself
can now be initialized before the network stack is.
Tested on Atmel SMART SAM E70 Xplained board
Change-Id: I65886fd6db6f27a10628e393cfabd8e5f78c08ff
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Fix eth_tx function which was dereferencing a pointer before
checking that it is not null.
Tested on Atmel SMART SAM E70 Xplained board
Change-Id: Idae4cf9d9a80f6ee9f74a94dd1debe7511c5fab4
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
Networking stack has split one global DATA pool to RX and TX DATA pools
and also added net_buf pool support to each context. Update the driver
to support this new design. Since the GMAC TX descriptor list has a fixed
size but the number of TX DATA buffers is no longer limited updating the
TX descriptor list has to be guarded by a semaphore.
Tested on Atmel SMART SAM E70 Xplained board
Change-Id: I181e1cdd183e173b85d5d1711b6e78cd5165666d
Signed-off-by: Piotr Mienkowski <piotr.mienkowski@gmail.com>
The code used net_nbuf_get_reserve_{rx|tx}_data() function to
allocate a fragment. Instead of that low level function, use
net_nbuf_get_frag() instead. There are few places this is not
possible or is too big change like in few test programs.
Change-Id: Ied7e2b7db352de998b200ffa6ff82471bfa5ebe3
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
If we receive lot of packets, it might happen that we exhaust
all the DATA buffers in the system. This would prevent from
us sending anything to the network.
Change this by splitting the DATA buffer pool into RX and TX
parts. This way RX flooding cannot consume all DATA buffers
that needs to be sent.
Change-Id: I8e8934c6d5fdd47b579ffa6268721b5eb3d64b6d
Signed-off-by: Jukka Rissanen <jukka.rissanen@linux.intel.com>
