From: art <art@sigrand.ru>
To: ashley jones <ashley_jones_2000@yahoo.com>
Cc: linux-mips@linux-mips.org
Subject: Re[4]: Socket buffer allocation outside DMA-able memory
Date: Wed, 7 Jun 2006 14:37:30 +0700 [thread overview]
Message-ID: <12609.060607@sigrand.ru> (raw)
In-Reply-To: <20060607051756.66058.qmail@web38409.mail.mud.yahoo.com>
Hello ashley,
Wednesday, June 07, 2006, 12:17:56 PM, you wrote:
aj>> I guess your 25 bit dma address field will be word alligned, so ur dma engine will be able to index up to 64 MB( 25+2 = 27 bits).
aj> Address not aligned - if I don't do anything driver work incorrect!
aj> *** what do you mean by Address not aligned ??
aj> *** What address you r passing to dma ? u should pass (skb->data >> 2) (if word alligned address is required for dma engine.)
In adm5120 switch driver to dma passed skb->data
--
Best regards,
art mailto:art@sigrand.ru
prev parent reply other threads:[~2006-06-07 7:37 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2006-06-02 13:26 Socket buffer allocation outside DMA-able memory art
2006-06-06 12:37 ` ashley jones
2006-06-07 3:48 ` Re[2]: " art
2006-06-07 5:17 ` ashley jones
2006-06-07 7:37 ` art [this message]
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