----- Original Message ----- From: "Jeff Garzik" <[EMAIL PROTECTED]> To: "Jesse Huang" <[EMAIL PROTECTED]> Cc: <linux-kernel@vger.kernel.org>; <netdev@vger.kernel.org>; <[EMAIL PROTECTED]> Sent: Friday, August 18, 2006 7:27 PM Subject: Re: [PATCH 2/6] IP100A Fix Tx pause bug
(1) >> + iowrite8(127, ioaddr + TxDMAPollPeriod); >> + > > what does the value 127 represent? 127 is polling period of Tx DMA to watch if there any packet need to send. The 127 means 127*320ns. (2) > DownCounter should not be written unconditionally. Consider shared > interrupts, where sundance performs no work, and handled==0. DownCount is a the register that we can use for timer interrupt. When the value of DownCount from 1 count down to 0 , IP100A will issue an interrupt. - To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html
