Take Rx buffer start alignment and end-padding into account.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Timers cannot be used to implement periodic polling, since it implies
requirement on application to process timers in the main loop.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
The event queue is required for device level events (e.g. link status
change) and flush events.
Provide thread-safe function to poll the event queue since it may be
really done from different contexts.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Right now the code just logs the exception and sets flag to notify
subsequent event handlers and poller that recovery is required.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Resources required in accordance with configuration are
allocated only.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Manual link speed/duplex configuration is not supported yet.
Loopback is not supported yet.
Flow Director is not supported.
Link status change notification using interrupt is not supported yet.
Receive data notification using interrupts is not supported yet.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
The setup and configuration of the PMD is not performance sensitive,
but is not thread safe either. It is possible that the multiple
read/writes during PMD setup and configuration could be corrupted
in a multi-thread environment. Since this is not performance
sensitive, the developer can choose to add their own layer to provide
thread-safe setup and configuration. It is expected that, in most
applications, the initial configuration of the network ports would be
done by a single thread at startup.
In the case of exception on the event queue, the event queue and
corresponding Rx/Tx queue should be restarted in the Rx/Tx queue
polling context. These operations require access to the device
control which should be serialized. The device level lock will do
the job.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Provide API to deal with licenses on SFN7xxx and SFN8xxx
family adapters.
EFSYS_OPT_LICENSING should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Provide API to read/write bootrom configuration from/to NVRAM.
EFSYS_OPT_BOOTROM should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Provide API to read/write PCI Vital Product Data.
EFSYS_OPT_VPD should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Provide API to work with NIC non-volatile memory. It is used
to update firmware, configure NIC including bootrom parameters,
manage licenses, store PCI Vital Product Data etc.
EFSYS_OPT_NVRAM should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
In packed stream mode, large buffers are provided to the NIC
into which many packets can be delivered. This reduces the
number of queue refills needed compared to delivering every
packet into a separate buffer.
EFSYS_OPT_RX_PACKED_STREAM should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_MON_MCDI should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_MON_STATS should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_LOOPBACK should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_RX_SCALE should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_RX_SCATTER should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_EV_PREFECT allows to enable event prefetching
when event queue is polled.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
MAC statistics are either periodically (if supported/requested)
or on-demand written to provided DMA-mapped memory.
If periodic update is not supported (e.g. for EF10 virtual
functions), it is the driver responsibility to handle it.
EFSYS_OPT_MAC_STATS should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_PHY_LED_CONTROL should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_PHY_STATS should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_PHY_FLAGS should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_QSTATS should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_BIST should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_DIAG should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
SFN8xxx is the second family based on EF10 architecture.
It has few differences from SFN7xxx adapters family.
EFSYS_OPT_MEDFORD should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
SFN7xxx is the first family based on EF10 architecture.
EFSYS_OPT_HUNTINGTON should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
EFSYS_OPT_SIENA should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
MCDI proxy authorization may be used if privileged PCI
function (physical function) would like to intercept and
authorize MCDI requests done by unprivileged (e.g. virtual)
PCI function. It may be used to control unprivileged
function Rx mode (e.g. promiscuous, all-multicast), MTU
and default MAC address change requests etc.
Current libefx support is limited to client-side which
is required to work when function requests need to be
authorized.
Server side support required to request and do the
authorization is not implemented yet.
EFSYS_OPT_MCDI_PROXY_AUTH should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Driver can provide a function to be called to log MCDI
requests and responses to help with debugging.
Solarflare netlogdecode cross-platform tool may be used
to decode these logs.
EFSYS_OPT_MCDI_LOGGING should be enabled to use it.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Implement interface to talk to NIC management CPU. Provide
helpers to fill in MCDI requests, execute it and process
received response.
MCDI request is prepared in either PCI BAR mapped memory
(SFN5xxx/SFN6xxx) or DMA-mapped memory (SFN7xxx/SFN8xxx) and,
doorbell is pressed (memory-mapped register) to execute it.
Events about MCDI completion are delivered to house-keeping
event queue, but usage of these events is optional and MCDI
buffer may be simply polled waiting for completion
indication set.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
The header defines data interface between host CPU and NIC
management CPU.
The header is automatically generated from firmware sources.
MCDI is used on NIC control path (configuration,
event/transmit/receive queues setup and teardown etc), but
not used on data path.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Filtering capabilities depend on NIC family and used firmware
variant. Provided API allows to get supported filter types
(in a priority order), add/delete individual filters and
restore entire filter table after, for example, NIC management
CPU reboot.
Rx filters allow to redirect matching flow to specified Rx queue.
Tx filters allow to control generated traffic (e.g. to implement
virtual function anti-spoofing control).
EFSYS_OPT_FILTER should be enabled to use it. It is required
for SFN7xxx and SFN8xxx adapter families support.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
libefx is a platform-independent library to implement drivers
for Solarflare network adapters. It provides unified adapter
family independent interface (if possible).
Driver must provide efsys.h header which defines options
(EFSYS_OPT_*) to be used and macros/functions to allocate
memory, read/write DMA-mapped memory, read/write PCI BAR
space, locks, barriers etc.
efx.h and efx_types.h provide external interfaces intended
to be used by drivers. Other header files are internal.
From Solarflare Communications Inc.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
Enable the PMD by default on supported configurations.
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andy Moreton <amoreton@solarflare.com>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>
