From: Eric Dumazet <eric.dumazet@gmail.com>
To: Po-Yu Chuang <ratbert.chuang@gmail.com>
Cc: netdev@vger.kernel.org, linux-kernel@vger.kernel.org,
bhutchings@solarflare.com, joe@perches.com, dilinger@queued.net,
mirqus@gmail.com, davem@davemloft.net,
Po-Yu Chuang <ratbert@faraday-tech.com>
Subject: Re: [PATCH v6] net: add Faraday FTMAC100 10/100 Ethernet driver
Date: Fri, 25 Feb 2011 12:40:40 +0100 [thread overview]
Message-ID: <1298634040.2659.32.camel@edumazet-laptop> (raw)
In-Reply-To: <1298627845-1583-1-git-send-email-ratbert.chuang@gmail.com>
Le vendredi 25 février 2011 à 17:57 +0800, Po-Yu Chuang a écrit :
> From: Po-Yu Chuang <ratbert@faraday-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@faraday-tech.com>
It seems fine to me, but I have somes questions
1) On V5, the receive function ftmac100_rx_packet() was able to process
several segments per skb. On V6 you process one frag only.
Isnt this NIC able to handle large MTU (say... 9000) ?
2) ftmac100_alloc_rx_page() is called and allocate a full page for a
rxdes.
128*4K -> 512 Kbytes of memory for RX ring
In V5, you were using half pages only, so 256 kbytes of memory.
If you look at other drivers (NIU, BENET), they are able to use exactly
128*2 kbytes (for a rxring of 128 slots, and 2Kbytes per slot)
next prev parent reply other threads:[~2011-02-25 11:40 UTC|newest]
Thread overview: 74+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-01-13 11:49 [PATCH] net: add Faraday FTMAC100 10/100 Ethernet driver Po-Yu Chuang
2011-01-13 14:03 ` Ben Hutchings
2011-01-14 5:37 ` Po-Yu Chuang
2011-01-13 14:22 ` Eric Dumazet
2011-01-13 16:29 ` Andres Salomon
2011-01-14 6:44 ` Po-Yu Chuang
2011-01-14 6:56 ` Po-Yu Chuang
2011-01-13 15:39 ` Joe Perches
2011-01-14 6:35 ` Po-Yu Chuang
[not found] ` <1294959948.4114.189.camel@Joe-Laptop>
2011-01-14 6:49 ` Po-Yu Chuang
2011-01-17 9:21 ` [PATCH v2] " Po-Yu Chuang
2011-01-17 17:19 ` Joe Perches
2011-01-19 9:40 ` Po-Yu Chuang
2011-01-19 12:46 ` Ben Hutchings
2011-01-19 16:41 ` Joe Perches
2011-01-20 5:30 ` Po-Yu Chuang
2011-01-20 8:46 ` Joe Perches
2011-01-17 17:29 ` Eric Dumazet
2011-01-17 18:58 ` Ben Hutchings
2011-01-17 20:39 ` Eric Dumazet
2011-01-17 18:21 ` Eric Dumazet
2011-01-18 3:08 ` Po-Yu Chuang
2011-01-19 9:20 ` Po-Yu Chuang
2011-01-20 15:30 ` [PATCH v3] " Po-Yu Chuang
2011-01-20 15:35 ` Eric Dumazet
2011-01-20 15:43 ` Po-Yu Chuang
2011-01-20 15:41 ` Eric Dumazet
2011-01-20 15:54 ` Po-Yu Chuang
2011-01-20 17:56 ` Joe Perches
2011-01-21 3:35 ` Po-Yu Chuang
2011-01-20 19:00 ` Joe Perches
2011-01-21 5:03 ` Po-Yu Chuang
[not found] ` <1295592411.6795.10.camel@Joe-Laptop>
2011-01-21 7:06 ` Po-Yu Chuang
2011-01-20 19:01 ` Michał Mirosław
2011-01-21 3:37 ` Po-Yu Chuang
2011-01-21 7:55 ` [PATCH v4] " Po-Yu Chuang
2011-01-21 9:08 ` Eric Dumazet
2011-01-24 8:07 ` Po-Yu Chuang
2011-01-21 12:26 ` Michał Mirosław
2011-01-24 8:26 ` Po-Yu Chuang
2011-01-24 20:22 ` Michał Mirosław
2011-01-25 2:46 ` Po-Yu Chuang
2011-02-01 3:56 ` Po-Yu Chuang
2011-02-01 4:35 ` David Miller
2011-02-24 7:27 ` Po-Yu Chuang
2011-02-24 7:51 ` David Miller
2011-02-24 8:07 ` Po-Yu Chuang
2011-02-24 8:22 ` Eric Dumazet
2011-02-24 9:29 ` [PATCH ref0] " Po-Yu Chuang
2011-02-24 17:39 ` Eric Dumazet
2011-02-24 17:48 ` Eric Dumazet
2011-02-25 2:32 ` Po-Yu Chuang
2011-02-25 9:45 ` Po-Yu Chuang
2011-02-25 10:52 ` Eric Dumazet
2011-02-25 18:34 ` David Miller
2011-02-25 18:45 ` Eric Dumazet
2011-02-25 18:47 ` Eric Dumazet
2011-03-01 5:45 ` Po-Yu Chuang
2011-03-01 5:53 ` Eric Dumazet
2011-02-25 9:57 ` [PATCH v6] " Po-Yu Chuang
2011-02-25 11:40 ` Eric Dumazet [this message]
2011-03-01 5:20 ` Po-Yu Chuang
2011-03-01 5:26 ` Eric Dumazet
2011-03-01 5:45 ` Eric Dumazet
2011-03-01 5:51 ` Po-Yu Chuang
2011-03-01 5:54 ` Eric Dumazet
2011-03-01 5:59 ` Eric Dumazet
2011-03-01 6:48 ` [PATCH] " Po-Yu Chuang
2011-03-01 7:27 ` Eric Dumazet
2011-03-03 20:19 ` David Miller
2011-02-24 18:43 ` [PATCH v4] " David Miller
2011-01-24 12:39 ` [PATCH v5] " Po-Yu Chuang
2011-01-24 15:07 ` Eric Dumazet
2011-01-25 2:46 ` Po-Yu Chuang
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