--
David Vrabel, Software Engineer, Drivers group Tel: +44 (0)1223 692562
CSR plc, Churchill House, Cambridge Business Park, Cowley Road, CB4 0WZ
.
sdio: extend sdio_readsb() and friends to handle any length of buffer
Extend sdio_readsb(), sdio_writesb(), sdio_memcpy_fromio(), and
sdio_memcpy_
On Tue, 07 Aug 2007 13:55:12 +0100
David Vrabel <[EMAIL PROTECTED]> wrote:
> sdio: extend sdio_readsb() and friends to handle any length of buffer
>
> Extend sdio_readsb(), sdio_writesb(), sdio_memcpy_fromio(), and
> sdio_memcpy_toio() to handle any length of buffer by splitting the
> transfer in
Here's my proposed compromise.
If a driver uses sdio_force_block_size() extensively, it will be like
your original version with sdio_set_block_size(). If it doesn't,
however, then that is a way to indicate that the driver has no specific
requirements (meaning we are free to change things in the fu
Pierre Ossman wrote:
> +static int sdio_io_rw_ext_helper(struct sdio_func *func, int write,
> + unsigned addr, int incr_addr, u8 *buf, unsigned size)
> +{
> + unsigned remainder = size;
> + int ret;
> + unsigned short blksz;
> + struct mmc_host *host = func->card->host;
> +
> +
On Wed, 08 Aug 2007 11:19:33 +0100
David Vrabel <[EMAIL PROTECTED]> wrote:
>
> We need to know the block size in use /before/ the start of the
> transfer as we would like drivers to be able to perform transfers
> with single commands as this can result in significantly better
> performance[1]. T
Pierre Ossman wrote:
> On Wed, 08 Aug 2007 11:19:33 +0100
> David Vrabel <[EMAIL PROTECTED]> wrote:
>
>> We need to know the block size in use /before/ the start of the
>> transfer as we would like drivers to be able to perform transfers
>> with single commands as this can result in significantly
On Wed, 08 Aug 2007 14:22:20 +0100
David Vrabel <[EMAIL PROTECTED]> wrote:
>
> Setting the block size in io_rw_ext_helper() has several drawbacks,
> namely:
>
> 1. Reduces the flexibility of drivers to manage what commands are
> performed. 2. A performance penalty on the first transfer.
> 3. Gre
7 matches
Mail list logo
