dwc: Remove if_dwc_mac_type

This doesn't represent the mac_type but if the DMA engine support
extended descriptors.
Read the HW_FEATURE register to learn if the DMA engine supports it.

No functiona

dwc: Remove if_dwc_mac_type

This doesn't represent the mac_type but if the DMA engine support
extended descriptors.
Read the HW_FEATURE register to learn if the DMA engine supports it.

No functional changes intended.

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dwc: Move BUS_MODE_DEFAULT_PBL; in if_dwcvar.h

And rename it to DMA_DEFAULT_PBL, this is the default for all (most ?)
dma engine that dwc should support.
While here stop including dwc1000_reg.h in i

dwc: Move BUS_MODE_DEFAULT_PBL; in if_dwcvar.h

And rename it to DMA_DEFAULT_PBL, this is the default for all (most ?)
dma engine that dwc should support.
While here stop including dwc1000_reg.h in if_dwc.c, we don't need it anymore.

No functional changes intended.

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dwc: Move dma engine configuration to dwc1000_dma.c

No functional changes intended.

dwc: Split dma functions

Synopsis/Designware controller have multiple dma version, the one included
in the driver is the base one. if_awg is one example of a dwc variant that
have another DMA contro

dwc: Split dma functions

Synopsis/Designware controller have multiple dma version, the one included
in the driver is the base one. if_awg is one example of a dwc variant that
have another DMA controller. eqos is a newer variant of dwc that have a newer
dma controller.
In the goal to support all of those in the same base driver start splitting the
dma function to a new file.

No functional changes intended.

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dwc: Drop 'All rights reserved'

Discussed with: br

dwc: Rewrite clock and reset functions

snps,dwmac have one required clock named stmmaceth and one optional pclk,
correctly handle both in if_dwc, no need to get/enable stmmacseth again
in if_dwc_rk.

dwc: Rewrite clock and reset functions

snps,dwmac have one required clock named stmmaceth and one optional pclk,
correctly handle both in if_dwc, no need to get/enable stmmacseth again
in if_dwc_rk.
It also have one required reset also named stmmaceth and one optional ahb,
correctly handle both.
Rockchip have another optional clock named clk_mac_speed, get it and enable it
if present. Also fix the optional RMII clocks, they were previously wrongly
enabled in RGMII case.

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dwc: Rename dwc_reset to dwc_reset_phy

It only deals with reseting the phy.
While here avoid calling ofw_bus_get_node again and save the node in softc.

sys: Remove $FreeBSD$: two-line .h pattern

Remove /^\s*\*\n \*\s+\$FreeBSD\$$\n/

dwc(4): Use bool rather than boolean_t.

This was already using true/false rather than TRUE/FALSE.

Reviewed by: emaste
Differential Revision: https://reviews.freebsd.org/D39925

Mechanically convert dwc(4) to IfAPI

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

[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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Merge ^/head r364082 through r364250.

MFH

Sponsored by: Rubicon Communications, LLC (netgate.com)

Improve Rockchip's integration of if_dwc

- Do not rely on U-Boot for clocks configuration, enable and set frequencies
in the driver's attach method.
- Adjust MAC settings according to detected l

Improve Rockchip's integration of if_dwc

- Do not rely on U-Boot for clocks configuration, enable and set frequencies
in the driver's attach method.
- Adjust MAC settings according to detected linespeed on RK3399 and RK3328.
- Add support for RMII PHY mode on RK3328.

Reviewed by: manu
Differential Revision: https://reviews.freebsd.org/D26006

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Improve if_dwc:
- refactorize packet receive path. Make sure that we don't leak mbufs
and/or that we don't create holes in RX descriptor ring
- slightly simplify handling with TX descriptors

MF

Improve if_dwc:
- refactorize packet receive path. Make sure that we don't leak mbufs
and/or that we don't create holes in RX descriptor ring
- slightly simplify handling with TX descriptors

MFC after: 4 weeks

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Fix style(9). Strip write only variables.
Not a functional change.

MFC after: 1 week

Set txbuf_map array size to TX_DESC_COUNT instead of RX_DESC_COUNT.

Merge from head

Sponsored by: Gandi.net

Merge from head

Merge from head

Sync up with head (up to r288341).

Merge ^/head r287878 through r288034.

Add alternate descriptors support for if_dwc.

This also adds a newbus interface that allows a SoC to override the
following settings:

- if_dwc specific SoC initialization;
- if_dwc descriptor typ

Add alternate descriptors support for if_dwc.

This also adds a newbus interface that allows a SoC to override the
following settings:

- if_dwc specific SoC initialization;
- if_dwc descriptor type;
- if_dwc MII clock.

This seems to be an old version of the hardware descriptors but it is
still in use in a few SoCs (namely Allwinner A20 and Amlogic at least).

Tested on Cubieboard2 and Banana pi.

Tested for regressions on Altera Cyclone by br@ (old version).

Obtained from: NetBSD

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