netdev - Re: [PATCH] net: add Faraday FTMAC100 10/100 Ethernet driver

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Date:	Tue, 01 Mar 2011 08:27:00 +0100
From:	Eric Dumazet <eric.dumazet@...il.com>
To:	Po-Yu Chuang <ratbert.chuang@...il.com>
Cc:	netdev@...r.kernel.org, linux-kernel@...r.kernel.org,
	bhutchings@...arflare.com, joe@...ches.com, dilinger@...ued.net,
	mirqus@...il.com, davem@...emloft.net,
	Po-Yu Chuang <ratbert@...aday-tech.com>
Subject: Re: [PATCH] net: add Faraday FTMAC100 10/100 Ethernet driver

Le mardi 01 mars 2011 à 14:48 +0800, Po-Yu Chuang a écrit :
> From: Po-Yu Chuang <ratbert@...aday-tech.com>
> 
> FTMAC100 Ethernet Media Access Controller supports 10/100 Mbps and
> MII.  This driver has been working on some ARM/NDS32 SoC's including
> Faraday A320 and Andes AG101.
> 
> Signed-off-by: Po-Yu Chuang <ratbert@...aday-tech.com>
> ---
> v2:
> always use NAPI
> do not use our own net_device_stats structure
> don't set trans_start and last_rx
> stats.rx_packets and stats.rx_bytes include dropped packets
> add missed netif_napi_del()
> initialize spinlocks in probe function
> remove rx_lock and hw_lock
> use netdev_[err/info/dbg] instead of dev_* ones
> use netdev_alloc_skb_ip_align()
> remove ftmac100_get_stats()
> use is_valid_ether_addr() instead of is_zero_ether_addr()
> add const to ftmac100_ethtool_ops and ftmac100_netdev_ops
> use net_ratelimit() instead of printk_ratelimit()
> no explicit inline
> use %pM to print MAC address
> add comment before wmb
> use napi poll() to handle all interrupts
> 
> v3:
> undo "stats.rx_packets and stats.rx_bytes include dropped packets"
> ftmac100_mdio_read() returns 0 if error
> fix comment typos
> use pr_fmt and pr_info
> define INT_MASK_ALL_ENABLED
> define MACCR_ENABLE_ALL
> do not count length error many times
> use bool/true/false
> use cpu_to_le32/le32_to_cpu to access descriptors
> indent style fix
> 
> v4:
> should not access skb after netif_receive_skb()
> use resource_size()
> better way to use cpu_to_le32/le32_to_cpu
> use spin_lock() for tx_lock
> combine all netdev_info() together in ftmac100_poll()
> 
> v5:
> use dev_kfree_skb() in ftmac100_tx_complete_packet()
> cpu_to_le32/le32_to_cpu usage fix
> drop GFP_DMA
> 
> v6:
> cpu_to_le32/le32_to_cpu usage fix
> remove "tx queue full" message
> reduce critical section protected by tx_lock
> add check of MAX_PKT_SIZE and RX_BUF_SIZE
> add __exit to ftmac100_remove()
> simplify ftmac100_rx_packet()
> zero copy - use skb_fill_page_desc() and __pskb_pull_tail().
> pull more data to skb head to include tcp/ip header
> 
> v7:
> allocate 128 bytes skb and pull 64 bytes only
> 
>  drivers/net/Kconfig    |    9 +
>  drivers/net/Makefile   |    1 +
>  drivers/net/ftmac100.c | 1196 ++++++++++++++++++++++++++++++++++++++++++++++++
>  drivers/net/ftmac100.h |  180 ++++++++
>  4 files changed, 1386 insertions(+), 0 deletions(-)
>  create mode 100644 drivers/net/ftmac100.c
>  create mode 100644 drivers/net/ftmac100.h

Signed-off-by: Eric Dumazet <eric.dumazet@...il.com>


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