/**
* Get station addresses
*
* @v nii NII NIC
* @v netdev Network device to fill in
* @ret rc Return status code
*/
static int nii_get_station_address ( struct nii_nic *nii,
struct net_device *netdev ) {
PXE_DB_STATION_ADDRESS db;
int stat;
int rc;
/* Initialise UNDI */
if ( ( rc = nii_initialise ( nii ) ) != 0 )
goto err_initialise;
/* Issue command */
if ( ( stat = nii_issue_db ( nii, PXE_OPCODE_STATION_ADDRESS, &db,
sizeof ( db ) ) ) < 0 ) {
rc = -EIO_STAT ( stat );
DBGC ( nii, "NII %s could not get station address: %s\n",
nii->dev.name, strerror ( rc ) );
goto err_station_address;
}
/* Copy MAC addresses */
memcpy ( netdev->ll_addr, db.StationAddr,
netdev->ll_protocol->ll_addr_len );
memcpy ( netdev->hw_addr, db.PermanentAddr,
netdev->ll_protocol->hw_addr_len );
memcpy ( nii->broadcast, db.BroadcastAddr,
sizeof ( nii->broadcast ) );
err_station_address:
nii_shutdown ( nii );
err_initialise:
return rc;
}
/**
* Open network device
*
* @v netdev Network device
* @ret rc Return status code
*/
static int nii_open ( struct net_device *netdev ) {
struct nii_nic *nii = netdev->priv;
int rc;
/* Initialise NIC */
if ( ( rc = nii_initialise ( nii ) ) != 0 )
goto err_initialise;
/* Attempt to set station address */
if ( ( rc = nii_set_station_address ( nii, netdev ) ) != 0 ) {
DBGC ( nii, "NII %s could not set station address: %s\n",
nii->dev.name, strerror ( rc ) );
/* Treat as non-fatal */
}
/* Set receive filters */
if ( ( rc = nii_set_rx_filters ( nii ) ) != 0 )
goto err_set_rx_filters;
return 0;
err_set_rx_filters:
nii_shutdown ( nii );
err_initialise:
return rc;
}
/**
* Close network device
*
* @v netdev Network device
*/
static void nii_close ( struct net_device *netdev ) {
struct nii_nic *nii = netdev->priv;
/* Shut down NIC */
nii_shutdown ( nii );
/* Discard transmit buffer, if applicable */
if ( nii->txbuf ) {
netdev_tx_complete_err ( netdev, nii->txbuf, -ECANCELED );
nii->txbuf = NULL;
}
/* Discard receive buffer, if applicable */
if ( nii->rxbuf ) {
free_iob ( nii->rxbuf );
nii->rxbuf = NULL;
}
}
/**
* Open network device
*
* @v netdev Network device
* @ret rc Return status code
*/
static int nii_open ( struct net_device *netdev ) {
struct nii_nic *nii = netdev->priv;
int rc;
/* Initialise NIC
*
* Some Emulex NII drivers have a bug which prevents packets
* from being sent or received unless we specifically ask it
* to detect cable presence during initialisation. Work
* around these buggy drivers by requesting cable detection at
* this point, even though we don't care about link state here
* (and would prefer to have the NIC initialise even if no
* cable is present, to match the behaviour of all other iPXE
* drivers).
*/
if ( ( rc = nii_initialise_and_detect ( nii ) ) != 0 )
goto err_initialise;
/* Attempt to set station address */
if ( ( rc = nii_set_station_address ( nii, netdev ) ) != 0 ) {
DBGC ( nii, "NII %s could not set station address: %s\n",
nii->dev.name, strerror ( rc ) );
/* Treat as non-fatal */
}
/* Set receive filters */
if ( ( rc = nii_set_rx_filters ( nii ) ) != 0 )
goto err_set_rx_filters;
return 0;
err_set_rx_filters:
nii_shutdown ( nii );
err_initialise:
return rc;
}
