netdev - Re: [PATCH v4 00/11] stmmac: Add Loongson platform support

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Date: Thu, 24 Aug 2023 09:47:43 +0800
From: Feiyang Chen <chris.chenfeiyang@...il.com>
To: Feiyang Chen <chenfeiyang@...ngson.cn>
Cc: andrew@...n.ch, hkallweit1@...il.com, peppe.cavallaro@...com, 
	alexandre.torgue@...s.st.com, joabreu@...opsys.com, chenhuacai@...ngson.cn, 
	linux@...linux.org.uk, dongbiao@...ngson.cn, guyinggang@...ngson.cn, 
	siyanteng@...ngson.cn, loongson-kernel@...ts.loongnix.cn, 
	netdev@...r.kernel.org, loongarch@...ts.linux.dev
Subject: Re: [PATCH v4 00/11] stmmac: Add Loongson platform support

On Tue, Aug 22, 2023 at 5:40 PM Feiyang Chen <chenfeiyang@...ngson.cn> wrote:
>
> Add and extend stmmac functions and macros for Loongson DWMAC.
> Add LS7A support and GNET support for dwmac_loongson.
>
> Split the code for extended GMAC (dwegmac) from dwmac1000, try
> not to mix up registers and core id.
>
> Some features of Loongson platforms are bound to the GMAC_VERSION
> register. We have to read its value in dwmac-loongson in order to
> get the correct channel number and DMA configuration.
>
> The current usage of stmmac_request_irq_multi_msi() is limited to
> dwmac-intel. While it appears that setting irq_flags might not be
> necessary for dwmac-intel, it should be configured for other drivers
> like dwmac-loongson. I've observed many drivers directly setting
> irq_flags within their probe functions or data structures without
> referencing the DT. Since I'm unsure about the proper handling of
> irq_flags, I've chosen to retain the code as-is.
>
> Feiyang Chen (11):
>   net: stmmac: Pass stmmac_priv and chan in some callbacks
>   stmmac: dwmac1000: Add 64-bit DMA support
>   stmmac: Add extended GMAC support for Loongson platforms
>   net: stmmac: Allow platforms to set irq_flags
>   net: stmmac: dwmac-loongson: Refactor code for loongson_dwmac_probe()
>   net: stmmac: dwmac-loongson: Add LS7A support
>   net: stmmac: dwmac-loongson: Add 64-bit DMA and MSI support
>   net: stmmac: dwegmac: Fix channel numbers
>   net: stmmac: dwmac-loongson: Disable flow control for GMAC
>   net: stmmac: dwegmac: Disable coe
>   net: stmmac: dwmac-loongson: Add GNET support
>
>  drivers/net/ethernet/stmicro/stmmac/Makefile  |   2 +-
>  .../net/ethernet/stmicro/stmmac/chain_mode.c  |  29 +-
>  drivers/net/ethernet/stmicro/stmmac/common.h  |   3 +
>  drivers/net/ethernet/stmicro/stmmac/descs.h   |   7 +
>  .../net/ethernet/stmicro/stmmac/descs_com.h   |  47 +-
>  drivers/net/ethernet/stmicro/stmmac/dwegmac.h | 332 +++++++++++
>  .../ethernet/stmicro/stmmac/dwegmac_core.c    | 552 ++++++++++++++++++
>  .../net/ethernet/stmicro/stmmac/dwegmac_dma.c | 522 +++++++++++++++++
>  .../net/ethernet/stmicro/stmmac/dwegmac_dma.h | 190 ++++++
>  .../ethernet/stmicro/stmmac/dwmac-loongson.c  | 338 ++++++++---
>  .../net/ethernet/stmicro/stmmac/dwmac-sun8i.c |  22 +-
>  .../ethernet/stmicro/stmmac/dwmac1000_core.c  |   9 +-
>  .../ethernet/stmicro/stmmac/dwmac1000_dma.c   |  54 +-
>  .../ethernet/stmicro/stmmac/dwmac100_core.c   |   9 +-
>  .../ethernet/stmicro/stmmac/dwmac100_dma.c    |   2 +-
>  .../net/ethernet/stmicro/stmmac/dwmac4_core.c |  11 +-
>  .../ethernet/stmicro/stmmac/dwmac4_descs.c    |  17 +-
>  .../net/ethernet/stmicro/stmmac/dwmac4_dma.c  |   8 +-
>  .../net/ethernet/stmicro/stmmac/dwmac4_dma.h  |   2 +-
>  .../net/ethernet/stmicro/stmmac/dwmac4_lib.c  |   2 +-
>  .../net/ethernet/stmicro/stmmac/dwmac_dma.h   |  22 +-
>  .../net/ethernet/stmicro/stmmac/dwmac_lib.c   |   5 +-
>  .../ethernet/stmicro/stmmac/dwxgmac2_core.c   |  11 +-
>  .../ethernet/stmicro/stmmac/dwxgmac2_descs.c  |  17 +-
>  .../ethernet/stmicro/stmmac/dwxgmac2_dma.c    |  10 +-
>  .../net/ethernet/stmicro/stmmac/enh_desc.c    |  38 +-
>  drivers/net/ethernet/stmicro/stmmac/hwif.c    |  66 ++-
>  drivers/net/ethernet/stmicro/stmmac/hwif.h    |  73 ++-
>  .../net/ethernet/stmicro/stmmac/norm_desc.c   |  17 +-
>  .../net/ethernet/stmicro/stmmac/ring_mode64.c | 158 +++++
>  .../ethernet/stmicro/stmmac/stmmac_ethtool.c  |   8 +-
>  .../net/ethernet/stmicro/stmmac/stmmac_main.c |  34 +-
>  include/linux/stmmac.h                        |  11 +
>  33 files changed, 2410 insertions(+), 218 deletions(-)
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwegmac.h
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwegmac_core.c
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwegmac_dma.c
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/dwegmac_dma.h
>  create mode 100644 drivers/net/ethernet/stmicro/stmmac/ring_mode64.c
>
> --
> 2.39.3
>

Due to some recent work adjustments, Yanteng will be taking over the
patch series.

Thanks,
Feiyang