sysadmin/ipxe
1
0
Fork 0
mirror of https://github.com/ipxe/ipxe synced 2025-12-24 15:23:42 +03:00
Code Issues Packages Projects Releases Wiki Activity

[scsi] Make SCSI command issuing partially asynchronous

Browse Source 
Move the icky call to step() from iscsi.c to scsi.c; this takes it at
least one step further away from where it really doesn't belong.
This commit is contained in:
Michael Brown
2009-07-07 23:00:11 +01:00
parent 51172783e2
commit 1d8d8ef2c8
4 changed files with 33 additions and 30 deletions
Download Patch File Download Diff File Expand all files Collapse all files

29
src/net/tcp/iscsi.c
View File

@@ -182,9 +182,10 @@ static void iscsi_close_connection ( struct iscsi_session *iscsi, int rc ) {
static void iscsi_scsi_done ( struct iscsi_session *iscsi, int rc ) {
assert ( iscsi->tx_state == ISCSI_TX_IDLE );
assert ( iscsi->command != NULL );
iscsi->command->rc = rc;
iscsi->command = NULL;
iscsi->rc = rc;
}
/****************************************************************************
@@ -1550,32 +1551,24 @@ static int iscsi_command ( struct scsi_device *scsi,
container_of ( scsi->backend, struct iscsi_session, refcnt );
int rc;
/* Abort immediately if we have a recorded permanent failure */
if ( iscsi->instant_rc )
return iscsi->instant_rc;
/* Record SCSI command */
iscsi->command = command;
/* Abort immediately if we have a recorded permanent failure */
if ( iscsi->instant_rc ) {
rc = iscsi->instant_rc;
goto done;
}
/* Issue command or open connection as appropriate */
if ( iscsi->status ) {
iscsi_start_command ( iscsi );
} else {
if ( ( rc = iscsi_open_connection ( iscsi ) ) != 0 )
goto done;
if ( ( rc = iscsi_open_connection ( iscsi ) ) != 0 ) {
iscsi->command = NULL;
return rc;
}
}
/* Wait for command to complete */
iscsi->rc = -EINPROGRESS;
while ( iscsi->rc == -EINPROGRESS )
step();
rc = iscsi->rc;
done:
iscsi->command = NULL;
return rc;
return 0;
}
static int iscsi_detached_command ( struct scsi_device *scsi __unused,