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ATA devices are now asynchronous. The ATA layer itself now performs the

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async_wait(), though we may wish to move this higher up the stack, and
consider making the block device model asynchronous.  (There is only a
marginal cost for synchronous devices, since they can simply call
async_done() before returning; async_wait() will work seamlessly in this
situation).
This commit is contained in:
Michael Brown
2006-05-31 18:57:11 +00:00
parent cf96d325d8
commit 99ef98d0bf
5 changed files with 17 additions and 11 deletions
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9
src/drivers/ata/aoedev.c
View File

@@ -30,15 +30,14 @@
*
* @v ata ATA device
* @v command ATA command
* @ret rc Return status code
* @ret aop Asynchronous operation
*/
static int aoe_command ( struct ata_device *ata,
struct ata_command *command ) {
static struct async_operation * aoe_command ( struct ata_device *ata,
struct ata_command *command ) {
struct aoe_device *aoedev
= container_of ( ata, struct aoe_device, ata );
aoe_issue ( &aoedev->aoe, command );
return async_wait ( &aoedev->aoe.aop );
return aoe_issue ( &aoedev->aoe, command );
}
/**

3
src/drivers/block/ata.c
View File

@@ -20,6 +20,7 @@
#include <string.h>
#include <assert.h>
#include <byteswap.h>
#include <gpxe/async.h>
#include <gpxe/blockdev.h>
#include <gpxe/ata.h>
@@ -48,7 +49,7 @@ ata_command ( struct ata_device *ata, struct ata_command *command ) {
( unsigned long long ) command->cb.lba.native,
command->cb.count.native );
return ata->command ( ata, command );
return async_wait ( ata->command ( ata, command ) );
}
/**