/**
* Issue command with parameter block and data block
*
* @v nii NII NIC
* @v op Operation
* @v cpb Command parameter block, or NULL
* @v cpb_len Command parameter block length
* @v db Data block, or NULL
* @v db_len Data block length
* @ret stat Status flags, or negative status code
*/
static int nii_issue_cpb_db ( struct nii_nic *nii, unsigned int op, void *cpb,
size_t cpb_len, void *db, size_t db_len ) {
PXE_CDB cdb;
/* Prepare command descriptor block */
memset ( &cdb, 0, sizeof ( cdb ) );
cdb.OpCode = NII_OPCODE ( op );
cdb.OpFlags = NII_OPFLAGS ( op );
cdb.CPBaddr = ( ( intptr_t ) cpb );
cdb.CPBsize = cpb_len;
cdb.DBaddr = ( ( intptr_t ) db );
cdb.DBsize = db_len;
cdb.IFnum = nii->nii->IfNum;
/* Issue command */
DBGC2 ( nii, "NII %s issuing %02x:%04x ifnum %d%s%s\n",
nii->dev.name, cdb.OpCode, cdb.OpFlags, cdb.IFnum,
( cpb ? " cpb" : "" ), ( db ? " db" : "" ) );
if ( cpb )
DBGC2_HD ( nii, cpb, cpb_len );
if ( db )
DBGC2_HD ( nii, db, db_len );
nii->issue ( ( intptr_t ) &cdb );
/* Check completion status */
if ( cdb.StatCode != PXE_STATCODE_SUCCESS )
return -cdb.StatCode;
/* Return command-specific status flags */
return ( cdb.StatFlags & ~PXE_STATFLAGS_STATUS_MASK );
}
/**
* Issue command with parameter block and data block
*
* @v nii NII NIC
* @v op Operation
* @v cpb Command parameter block, or NULL
* @v cpb_len Command parameter block length
* @v db Data block, or NULL
* @v db_len Data block length
* @ret stat Status flags, or negative status code
*/
static int nii_issue_cpb_db ( struct nii_nic *nii, unsigned int op, void *cpb,
size_t cpb_len, void *db, size_t db_len ) {
PXE_CDB cdb;
/* Prepare command descriptor block */
memset ( &cdb, 0, sizeof ( cdb ) );
cdb.OpCode = NII_OPCODE ( op );
cdb.OpFlags = NII_OPFLAGS ( op );
cdb.CPBaddr = ( ( intptr_t ) cpb );
cdb.CPBsize = cpb_len;
cdb.DBaddr = ( ( intptr_t ) db );
cdb.DBsize = db_len;
cdb.IFnum = nii->nii->IfNum;
/* Issue command */
nii->issue ( ( intptr_t ) &cdb );
/* Check completion status */
if ( cdb.StatCode != PXE_STATCODE_SUCCESS )
return -cdb.StatCode;
/* Return command-specific status flags */
return ( cdb.StatFlags & ~PXE_STATFLAGS_STATUS_MASK );
}
