Mechanically convert dwc(4) to IfAPI

Reviewed by: manu (older)
Sponsored by: Juniper Networks, Inc.
Differential Revision: https://reviews.freebsd.org/D37846

if_dwc: fix reinitialization with changed MAC

It was observed that on RockPro64 hardware, the dwc interface is unable
to receive packets after being assigned a new MAC address. The fix is
simply to

if_dwc: fix reinitialization with changed MAC

It was observed that on RockPro64 hardware, the dwc interface is unable
to receive packets after being assigned a new MAC address. The fix is
simply to call mii_mediachg() before touching any device registers in
dwc_init_locked(). This is consistent with what the OpenBSD driver does.

PR: 263820
MFC after: 1 week

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if_dwc: avoid duplicate packet counts

We already increment the unicast IPACKETS and OPACKETS counters in the
rx/tx paths, respectively. Multicast packets are counted in the generic
ethernet code. Th

if_dwc: avoid duplicate packet counts

We already increment the unicast IPACKETS and OPACKETS counters in the
rx/tx paths, respectively. Multicast packets are counted in the generic
ethernet code. Therefore, we shouldn't increment these counters in
dwc_harvest_stats().

Drop the early return from dwc_rxfinish_one() so that we still count
received packets with e.g. a checksum error.

PR: 263817
Reported by: Jiahao LI <jiahali@blackberry.com>
Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35499

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if_dwc: enable RX checksum offload feature

We claim support in ifcaps, but don't actually enable it.

PR: 263886
Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differentia

if_dwc: enable RX checksum offload feature

We claim support in ifcaps, but don't actually enable it.

PR: 263886
Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35498

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if_dwc: add detach method

It can be useful for testing.

Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35496

if_dwc: consistently use if.c helper methods

And if_t rather than struct ifnet *. No functional change intended.

Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differentia

if_dwc: consistently use if.c helper methods

And if_t rather than struct ifnet *. No functional change intended.

Reviewed by: manu
MFC after: 1 week
Sponsored by: The FreeBSD Foundation
Differential Revision: https://reviews.freebsd.org/D35497

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dwc: Remove unused devclass argument to DRIVER_MODULE.

Remove unused miibus_devclass and miibus_fdt_devclass.

dwc: Support phy mode MII

Some board use dwc phy in MII mode, so do not fail to attach if this is
the case.
Only rockchip code uses the phy mode to program some custom syscon register.

PR: 260848
M

dwc: Support phy mode MII

Some board use dwc phy in MII mode, so do not fail to attach if this is
the case.
Only rockchip code uses the phy mode to program some custom syscon register.

PR: 260848
MFC after: 1 week
Sponsored by: Beckhoff Automation GmbH & Co. KG

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dwc: Release resources when attach fails

PR: 259282
MFC after: 1 week
Sponsored by: Beckhoff Automation GmbH & Co. KG

dwc: Make ext_resources non-optional

EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.

MFC after: 1 month
Differential Revision: ht

dwc: Make ext_resources non-optional

EXT_RESOURCES have been introduced in 12-CURRENT and all supported
releases have it enabled in their kernel config.

MFC after: 1 month
Differential Revision: https://reviews.freebsd.org/D33820

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if_dwc: Plug set but not used variable

Sponsored by: Beckhoff Automation GmbH & Co. KG

dwc: Use mii_fdt function

Use the helper function to get phy mode and configure dwc accordingly.

Reviewed by: ian

[if_dwc] add support for multi-descriptor packets in TX path

Original if_dwc driver used m_defrag as an implementation shortcut but on
1000Mb networks it affects performance. Implement multi-descrip

[if_dwc] add support for multi-descriptor packets in TX path

Original if_dwc driver used m_defrag as an implementation shortcut but on
1000Mb networks it affects performance. Implement multi-descriptor support for
TX path.

Tested on RK3399-Firefly, patch adds ~15% of network throughput.

Reviewed By: manu
Differential Revision: https://reviews.freebsd.org/D27520

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if_dwc: Honor snps,pbl property

DTS node can have this property which configure the burst length
for both TX and RX if it's the same.
This unbreak if_dwc on Allwinner A20 and possibly other boards t

if_dwc: Honor snps,pbl property

DTS node can have this property which configure the burst length
for both TX and RX if it's the same.
This unbreak if_dwc on Allwinner A20 and possibly other boards that
uses this prop.

Reported by: qroxana <qroxana@mail.ru>

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if_dwc: Correctly configure the DMA engine based on the fdt properties

Do not hardcode what we setup for the DMA engine configuration but
lookup the fdt properties and configuring accordingly.
Use a

if_dwc: Correctly configure the DMA engine based on the fdt properties

Do not hardcode what we setup for the DMA engine configuration but
lookup the fdt properties and configuring accordingly.
Use a default value of 8 for the burst dma length for both TX and
RX, this is what we used for TX before.

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if_dwc: Add checksum offloading support

if_dwc: Add flow control support

if_dwc: Use if_ function where appropriate

No functional changes intended

if_dwc: Reorder functions and sort them by usage

No functional changes intended

if_dwc: dwc_get_hwaddr cannot fail, change return to void

No functional changes intended

if_dwc: Add dwc_stop_dma and use it in dwc_stop_locked

No functional changes intended

if_dwc: Use dwc_enable_mac in dwc_stop_locked

No functional changes intended

if_dwc: Add a function to enable/disable the mac tx/rx

No functional changes intended

if_dwc: Use if_setdrvflagbits to notify that we are running

No functional changes intended