net/ionic: support vdev for embedded applications

Add support for running DPDK applications directly on AMD Pensando
embedded HW. The platform exposes the device BARs through UIO. The
UIO code in th

net/ionic: support vdev for embedded applications

Add support for running DPDK applications directly on AMD Pensando
embedded HW. The platform exposes the device BARs through UIO. The
UIO code in the common/ionic library walks the sysfs filesystem
to identify the relevant BARs and map them into process memory.

The SoCs are named 'Capri' and 'Elba'.

The vdev device interface code is located in ionic_dev_vdev.c.

Some datapath operations are #ifdef-ed out to save on resources when
running in embedded mode.

Some control path operations are skipped by the ionic_is_embedded()
helper function.

Before ringing the doorbell, use an ARM 'dsb st' barrier. The normal
barrier inside rte_write64() is insufficient on these devices due to
a chip errata.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>
Signed-off-by: Neel Patel <neel.patel@amd.com>
Signed-off-by: R Mohamed Shah <mohamedshah.r@amd.com>
Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>
Reviewed-by: Honnappa Nagarahalli <honnappa.nagarahalli@arm.com>

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common/ionic: create common code library

Move definitions that will be shared by net/ionic and crypto/ionic.
Add the code used for discovering UIO vdevs.

Signed-off-by: Andrew Boyer <andrew.boyer@a

common/ionic: create common code library

Move definitions that will be shared by net/ionic and crypto/ionic.
Add the code used for discovering UIO vdevs.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>
Acked-by: Ferruh Yigit <ferruh.yigit@amd.com>

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net/ionic: optimize device stop

Split the queue_stop operation into first-half and second-half helpers.
Move the command context from the stack into each Rx/Tx queue struct.
Expose some needed admin

net/ionic: optimize device stop

Split the queue_stop operation into first-half and second-half helpers.
Move the command context from the stack into each Rx/Tx queue struct.
Expose some needed adminq interfaces.

This allows us to batch up the queue commands during dev_stop(), reducing
the outage window when restarting the process by about 1ms per queue.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>

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net/ionic: add Q-in-CMB option

When 'ionic_cmb' is set to '1', queue memory will be allocated from
the device's onboard memory (Controller Memory Buffer). In some
configurations, this will dramatica

net/ionic: add Q-in-CMB option

When 'ionic_cmb' is set to '1', queue memory will be allocated from
the device's onboard memory (Controller Memory Buffer). In some
configurations, this will dramatically reduce packet latency and
increase PPS.

Add the WC_ACTIVATE flag to the PCI driver flags.
Write combining must be enabled to achieve the maximum PPS.

When the queue is in the CMB, descriptors cannot be prefetched.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>
Signed-off-by: Neel Patel <neel.patel@amd.com>

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net/ionic: move PCI-specific code to separate file

For future support of virtual devices, move the PCI code to its own
file. Create a new device interface, struct ionic_dev_intf, to plug
in to commo

net/ionic: move PCI-specific code to separate file

For future support of virtual devices, move the PCI code to its own
file. Create a new device interface, struct ionic_dev_intf, to plug
in to common code.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>
Signed-off-by: Neel Patel <neel.patel@amd.com>
Signed-off-by: R Mohamed Shah <mohamedshah.r@amd.com>

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net/ionic: remove unused identifiers

These bits are not used. Remove them to simplify the code.
Fix the spacing on the IONIC_ALIGN #define.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>

net/ionic: update license terms to remove GPL

Remove GPL2 and leave only BSD-3-Clause. This is more in line with
the norms of the DPDK community.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>

net/ionic: update documentation and copyrights

Pensando Systems has been acquired by AMD.
Update all copyright strings and email addresses.

Signed-off-by: Andrew Boyer <andrew.boyer@amd.com>

bus/pci: make driver-only headers private

The pci bus interface is for drivers only.
Mark as internal and move the header in the driver headers list.

While at it, cleanup the code:
- fix indentatio

bus/pci: make driver-only headers private

The pci bus interface is for drivers only.
Mark as internal and move the header in the driver headers list.

While at it, cleanup the code:
- fix indentation,
- remove unneeded reference to bus specific singleton object,
- remove unneeded list head structure type,
- reorder the definitions and macro manipulating the bus singleton object,
- remove inclusion of rte_bus.h and fix the code that relied on implicit
inclusion,

Signed-off-by: David Marchand <david.marchand@redhat.com>
Acked-by: Bruce Richardson <bruce.richardson@intel.com>
Acked-by: Ajit Khaparde <ajit.khaparde@broadcom.com>
Acked-by: Rosen Xu <rosen.xu@intel.com>

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net/ionic: consolidate adminq code

The adminq is the only caller of ionic_q_service(), so absorb it
into ionic_adminq_service().
Move all of the adminq code together into ionic_main.c.
Staticize a f

net/ionic: consolidate adminq code

The adminq is the only caller of ionic_q_service(), so absorb it
into ionic_adminq_service().
Move all of the adminq code together into ionic_main.c.
Staticize a few things.

Signed-off-by: Andrew Boyer <aboyer@pensando.io>

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net/ionic: remove multi-LIF support

This feature is unused, so remove it.

There is exactly one adapter / lif / ethdev per port.

Signed-off-by: Andrew Boyer <aboyer@pensando.io>

net/ionic: do minor logging fixups

Expose ionic_opcode_to_str() so it can be used for dev cmds, too.
Store the device name in struct adapter.

Switch to memcpy() to work around gcc false positives.

net/ionic: do minor logging fixups

Expose ionic_opcode_to_str() so it can be used for dev cmds, too.
Store the device name in struct adapter.

Switch to memcpy() to work around gcc false positives.

Signed-off-by: Andrew Boyer <aboyer@pensando.io>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

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net/ionic: remove some unused fields

This conserves resources.

Signed-off-by: Andrew Boyer <aboyer@pensando.io>
Reviewed-by: Ferruh Yigit <ferruh.yigit@intel.com>

net/ionic: support FW version

Add support for reading the firmware version.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

net/ionic: add basic port operations

Add support for port start/stop and handle basic features
including MTU and link up/down.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by:

net/ionic: add basic port operations

Add support for port start/stop and handle basic features
including MTU and link up/down.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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net/ionic: support notify queue

Add support for the notify queue, which is used for events
published by the NIC.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelso

net/ionic: support notify queue

Add support for the notify queue, which is used for events
published by the NIC.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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net/ionic: support admin queue

Add support for the admin queue, which is used for most
of the NIC configurations.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nels

net/ionic: support admin queue

Add support for the admin queue, which is used for most
of the NIC configurations.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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net/ionic: support basic LIF

Initialize LIFs (Logical Interfaces) which represents
external connections. The NIC can multiplex many LIFs
to a single port, but in most setups, LIF0 is the
primary con

net/ionic: support basic LIF

Initialize LIFs (Logical Interfaces) which represents
external connections. The NIC can multiplex many LIFs
to a single port, but in most setups, LIF0 is the
primary control for the port.
Create a device for each LIF.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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net/ionic: add port management commands

Add port management commands that apply to the physical
ports associated with the PCI device, which might be
shared among several logical interfaces.

Signed-

net/ionic: add port management commands

Add port management commands that apply to the physical
ports associated with the PCI device, which might be
shared among several logical interfaces.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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net/ionic: register and initialize adapter

Register the Pensando ionic PMD (net_ionic) and define initial probe
and remove callbacks with adapter initialization.

Signed-off-by: Alfredo Cardigliano

net/ionic: register and initialize adapter

Register the Pensando ionic PMD (net_ionic) and define initial probe
and remove callbacks with adapter initialization.

Signed-off-by: Alfredo Cardigliano <cardigliano@ntop.org>
Reviewed-by: Shannon Nelson <snelson@pensando.io>

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