Dead code removal

src/drivers/net/mlx_ipoib/mt25218.c

 
 
 
-static const struct ib_gid arbel_no_gid = {
-	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 }
-};
-
-
-#if 0
-
-#define MLX_RX_MAX_FILL NUM_IPOIB_RCV_WQES
-
-struct mlx_nic {
-#if ! CREATE_OWN
-	/** Queue pair handle */
-	udqp_t ipoib_qph;
-	/** Send completion queue */
-	cq_t snd_cqh;
-	/** Receive completion queue */
-	cq_t rcv_cqh;
-#endif
-	/** Broadcast Address Vector */
-	ud_av_t bcast_av;
-
-	/** RX fill level */
-	unsigned int rx_fill;
-
-#if CREATE_OWN
-	struct ib_completion_queue *own_send_cq;
-	struct ib_completion_queue *own_recv_cq;
-	struct ib_queue_pair *own_qp;
-#endif
-};
-
-
-static struct io_buffer *static_ipoib_tx_ring[NUM_IPOIB_SND_WQES];
-static struct io_buffer *static_ipoib_rx_ring[NUM_IPOIB_RCV_WQES];
-
-static struct arbel static_arbel;
-
-#if ! CREATE_OWN
-
-static struct arbel_completion_queue static_arbel_ipoib_send_cq = {
-	.ci_doorbell_idx = IPOIB_SND_CQ_CI_DB_IDX,
-};
-static struct ib_completion_queue static_ipoib_send_cq = {
-	.cqn = 1234, /* Only used for debug messages */
-	.num_cqes = NUM_IPOIB_SND_CQES,
-	.work_queues = LIST_HEAD_INIT ( static_ipoib_send_cq.work_queues ),
-	.dev_priv = &static_arbel_ipoib_send_cq,
-};
-
-static struct arbel_completion_queue static_arbel_ipoib_recv_cq = {
-	.ci_doorbell_idx = IPOIB_RCV_CQ_CI_DB_IDX,
-};
-static struct ib_completion_queue static_ipoib_recv_cq = {
-	.cqn = 2345, /* Only used for debug messages */
-	.num_cqes = NUM_IPOIB_RCV_CQES,
-	.work_queues = LIST_HEAD_INIT ( static_ipoib_recv_cq.work_queues ),
-	.dev_priv = &static_arbel_ipoib_recv_cq,
-};
-
-static struct arbel_queue_pair static_arbel_ipoib_qp = {
-	.send = {
-		.doorbell_idx = IPOIB_SND_QP_DB_IDX,
-	},
-	.recv = {
-		.doorbell_idx = IPOIB_RCV_QP_DB_IDX,
-	},
-};
-static struct ib_queue_pair static_ipoib_qp = {
-	.send = {
-		.qp = &static_ipoib_qp,
-		.is_send = 1,
-		.cq = &static_ipoib_send_cq,
-		.num_wqes = NUM_IPOIB_SND_WQES,
-		.iobufs = static_ipoib_tx_ring,
-		.list = LIST_HEAD_INIT (static_ipoib_qp.send.list),
-		.dev_priv = &static_arbel_ipoib_qp.send,
-	},
-	.recv = {
-		.qp = &static_ipoib_qp,
-		.is_send = 0,
-		.cq = &static_ipoib_recv_cq,
-		.num_wqes = NUM_IPOIB_RCV_WQES,
-		.iobufs = static_ipoib_rx_ring,
-		.list = LIST_HEAD_INIT (static_ipoib_qp.recv.list),
-		.dev_priv = &static_arbel_ipoib_qp.recv,
-	},
-	.dev_priv = &static_arbel_ipoib_qp,
-};
-
-#endif
-
-
-static struct ib_device static_ibdev = {
-	.dev_priv = &static_arbel,
-};
-
-
-/**
- * Open network device
- *
- * @v netdev		Network device
- * @ret rc		Return status code
- */
-static int mlx_open ( struct net_device *netdev ) {
-
-	( void ) netdev;
-
-	return 0;
-}
-
-/**
- * Close network device
- *
- * @v netdev		Network device
- */
-static void mlx_close ( struct net_device *netdev ) {
-
-	( void ) netdev;
-
-}
-
-static int arbel_post_send ( struct ib_device *ibdev,
-			     struct ib_queue_pair *qp,
-			     struct ib_address_vector *av,
-			     struct io_buffer *iobuf );
-
-static int mlx_transmit_direct ( struct net_device *netdev,
-				 struct io_buffer *iobuf ) {
-	struct mlx_nic *mlx = netdev->priv;
-	int rc;
-
-	struct ud_av_st *bcast_av = mlx->bcast_av;
-	struct arbelprm_ud_address_vector *bav =
-		( struct arbelprm_ud_address_vector * ) &bcast_av->av;
-	struct ib_address_vector av = {
-		.dest_qp = bcast_av->dest_qp,
-		.qkey = bcast_av->qkey,
-		.dlid = MLX_GET ( bav, rlid ),
-		.rate = ( MLX_GET ( bav, max_stat_rate ) ? 1 : 4 ),
-		.sl = MLX_GET ( bav, sl ),
-		.gid_present = 1,
-	};
-	memcpy ( &av.gid, ( ( void * ) bav ) + 16, 16 );
-
-	rc = arbel_post_send ( &static_ibdev,
-#if CREATE_OWN
-			       mlx->own_qp,
-#else
-			       &static_ipoib_qp,
-#endif
-			       &av, iobuf );
-
-	return rc;
-}
-
-static void arbel_poll_cq ( struct ib_device *ibdev,
-			    struct ib_completion_queue *cq,
-			    ib_completer_t complete_send,
-			    ib_completer_t complete_recv );
-
-static void temp_complete_send ( struct ib_device *ibdev __unused,
-				 struct ib_queue_pair *qp,
-				 struct ib_completion *completion,
-				 struct io_buffer *iobuf ) {
-	struct net_device *netdev = qp->owner_priv;
-
-	DBG ( "Wahey! TX completion\n" );
-	netdev_tx_complete_err ( netdev, iobuf,
-				 ( completion->syndrome ? -EIO : 0 ) );
-}
-
-static void temp_complete_recv ( struct ib_device *ibdev __unused,
-				 struct ib_queue_pair *qp,
-				 struct ib_completion *completion,
-				 struct io_buffer *iobuf ) {
-	struct net_device *netdev = qp->owner_priv;
-	struct mlx_nic *mlx = netdev->priv;
-
-	DBG ( "Yay! RX completion on %p len %zx:\n", iobuf, completion->len );
-	if ( completion->syndrome ) {
-		netdev_rx_err ( netdev, iobuf, -EIO );
-	} else {
-		iob_put ( iobuf, completion->len );
-		iob_pull ( iobuf, sizeof ( struct ib_global_route_header ) );
-		netdev_rx ( netdev, iobuf );
-	}
-
-	mlx->rx_fill--;
-}
-
-static int arbel_post_recv ( struct ib_device *ibdev,
-			     struct ib_queue_pair *qp,
-			     struct io_buffer *iobuf );
-
-static void mlx_refill_rx ( struct net_device *netdev ) {
-	struct mlx_nic *mlx = netdev->priv;
-	struct io_buffer *iobuf;
-	int rc;
-
-	while ( mlx->rx_fill < MLX_RX_MAX_FILL ) {
-		iobuf = alloc_iob ( 2048 );
-		if ( ! iobuf )
-			break;
-		DBG ( "Posting RX buffer %p:\n", iobuf );
-		if ( ( rc = arbel_post_recv ( &static_ibdev,
-#if CREATE_OWN
-					      mlx->own_qp,
-#else
-					      &static_ipoib_qp,
-#endif
-					      iobuf ) ) != 0 ) {
-			free_iob ( iobuf );
-			break;
-		}
-		mlx->rx_fill++;
-	}
-}
-
-/**
- * Poll for completed and received packets
- *
- * @v netdev		Network device
- */
-static void mlx_poll ( struct net_device *netdev ) {
-	struct mlx_nic *mlx = netdev->priv;
-	int rc;
-
-	if ( ( rc = poll_error_buf() ) != 0 ) {
-		DBG ( "poll_error_buf() failed: %s\n", strerror ( rc ) );
-		return;
-	}
-
-	/* Drain event queue.  We can ignore events, since we're going
-	 * to just poll all completion queues anyway.
-	 */
-	if ( ( rc = drain_eq() ) != 0 ) {
-		DBG ( "drain_eq() failed: %s\n", strerror ( rc ) );
-		return;
-	}
-
-	/* Poll completion queues */
-	arbel_poll_cq ( &static_ibdev,
-#if CREATE_OWN
-			mlx->own_send_cq,
-#else
-			&static_ipoib_send_cq,
-#endif
-			temp_complete_send, temp_complete_recv );
-#if 0
-	arbel_poll_cq ( &static_ibdev,
-#if CREATE_OWN
-			mlx->own_recv_cq,
-#else
-			&static_ipoib_recv_cq,
-#endif
-			temp_complete_send, temp_complete_recv );
-#endif
-
-	mlx_refill_rx ( netdev );
-}
-
-/**
- * Enable or disable interrupts
- *
- * @v netdev		Network device
- * @v enable		Interrupts should be enabled
- */
-static void mlx_irq ( struct net_device *netdev, int enable ) {
-
-	( void ) netdev;
-	( void ) enable;
-
-}
-
-static struct net_device_operations mlx_operations = {
-	.open		= mlx_open,
-	.close		= mlx_close,
-	.transmit	= mlx_transmit_direct,
-	.poll		= mlx_poll,
-	.irq		= mlx_irq,
-};
-
 
-#endif /* 0 */
 
 
 
 	writel ( db_reg->dword[1], ( arbel->uar + offset + 4 ) );
 }
 
+/** GID used for GID-less send work queue entries */
+static const struct ib_gid arbel_no_gid = {
+	{ 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 0, 2 }
+};
+
 /**
  * Post send work queue entry
  *
 
 
 
-#if 0
-
-/**
- * Probe PCI device
- *
- * @v pci		PCI device
- * @v id		PCI ID
- * @ret rc		Return status code
- */
-static int arbel_probe ( struct pci_device *pci,
-			 const struct pci_device_id *id __unused ) {
-	struct net_device *netdev;
-	struct arbelprm_query_dev_lim dev_lim;
-	struct arbel *arbel = &static_arbel;
-	struct mlx_nic *mlx;
-	struct ib_mac *mac;
-	udqp_t qph;
-	int rc;
-
-	/* Allocate net device */
-	netdev = alloc_ibdev ( sizeof ( *mlx ) );
-	if ( ! netdev )
-		return -ENOMEM;
-	netdev_init ( netdev, &mlx_operations );
-	mlx = netdev->priv;
-	pci_set_drvdata ( pci, netdev );
-	netdev->dev = &pci->dev;
-	memset ( mlx, 0, sizeof ( *mlx ) );
-
-	/* Fix up PCI device */
-	adjust_pci_device ( pci );
-
-	/* Initialise hardware */
-	if ( ( rc = ib_driver_init ( pci, &qph ) ) != 0 )
-		goto err_ipoib_init;
-	mlx->bcast_av = ib_data.bcast_av;
-#if ! CREATE_OWN
-	mlx->ipoib_qph = qph;
-	mlx->snd_cqh = ib_data.ipoib_snd_cq;
-	mlx->rcv_cqh = ib_data.ipoib_rcv_cq;
-	mac = ( ( struct ib_mac * ) netdev->ll_addr );
-	mac->qpn = htonl ( ib_get_qpn ( mlx->ipoib_qph ) );
-	memcpy ( &mac->gid, ib_data.port_gid.raw, sizeof ( mac->gid ) );
-#endif
-
-	/* Hack up IB structures */
-	arbel->config = memfree_pci_dev.cr_space;
-	arbel->mailbox_in = dev_buffers_p->inprm_buf;
-	arbel->mailbox_out = dev_buffers_p->outprm_buf;
-	arbel->uar = memfree_pci_dev.uar;
-	arbel->db_rec = dev_ib_data.uar_context_base;
-	arbel->reserved_lkey = dev_ib_data.mkey;
-	arbel->eqn = dev_ib_data.eq.eqn;
-#if ! CREATE_OWN
-	static_arbel_ipoib_qp.send.wqe =
-		( ( struct udqp_st * ) qph )->snd_wq;
-	static_arbel_ipoib_qp.recv.wqe =
-		( ( struct udqp_st * ) qph )->rcv_wq;
-	static_arbel_ipoib_send_cq.cqe =
-		( ( struct cq_st * ) ib_data.ipoib_snd_cq )->cq_buf;
-	static_arbel_ipoib_recv_cq.cqe =
-		( ( struct cq_st * ) ib_data.ipoib_rcv_cq )->cq_buf;
-	static_ipoib_qp.qpn = ib_get_qpn ( qph );
-	static_ipoib_qp.owner_priv = netdev;
-	list_add ( &static_ipoib_qp.send.list,
-		   &static_ipoib_send_cq.work_queues );
-	list_add ( &static_ipoib_qp.recv.list,
-		   &static_ipoib_recv_cq.work_queues );
-#endif
-	static_ibdev.op = &arbel_ib_operations;
-
-	/* Get device limits */
-	if ( ( rc = arbel_cmd_query_dev_lim ( arbel, &dev_lim ) ) != 0 ) {
-		DBGC ( arbel, "Arbel %p could not get device limits: %s\n",
-		       arbel, strerror ( rc ) );
-		goto err_query_dev_lim;
-	}
-	arbel->limits.reserved_uars = MLX_GET ( &dev_lim, num_rsvd_uars );
-	arbel->limits.reserved_cqs =
-		( 1 << MLX_GET ( &dev_lim, log2_rsvd_cqs ) );
-	arbel->limits.reserved_qps =
-		( 1 << MLX_GET ( &dev_lim, log2_rsvd_qps ) );
-
-#if CREATE_OWN
-	struct ib_device *ibdev = &static_ibdev;
-	mlx->own_send_cq = ib_create_cq ( ibdev, 32 );
-	if ( ! mlx->own_send_cq ) {
-		DBG ( "Could not create send CQ\n" );
-		return -EIO;
-	}
-#if 0
-	mlx->own_recv_cq = ib_create_cq ( ibdev, 32 );
-	if ( ! mlx->own_recv_cq ) {
-		DBG ( "Could not create send CQ\n" );
-		return -EIO;
-	}
-#endif
-	mlx->own_qp = ib_create_qp ( ibdev, NUM_IPOIB_SND_WQES,
-				     mlx->own_send_cq, NUM_IPOIB_RCV_WQES,
-				     //mlx->own_recv_cq, ipoib_qkey );
-				     mlx->own_send_cq, ipoib_qkey );
-	if ( ! mlx->own_qp ) {
-		DBG ( "Could not create QP\n" );
-		return -EIO;
-	}
-	mlx->own_qp->owner_priv = netdev;
-	struct ib_gid *bcast_gid = ( struct ib_gid * ) &ib_data.bcast_gid;
-	if ( ( rc = ib_mcast_attach ( ibdev, mlx->own_qp,
-				      bcast_gid ) ) != 0 ) {
-		DBG ( "Could not attach to broadcast GID: %s\n",
-		      strerror ( rc ) );
-		return rc;
-	}
-
-	if ( ( rc = arbel_get_port_gid ( arbel, &ibdev->port_gid ) ) != 0 ) {
-		DBGC ( arbel, "Arbel %p could not determine port GID: %s\n",
-		       arbel, strerror ( rc ) );
-		return rc;
-	}
-
-	DBG ( "Port GID:\n" );
-	DBG_HD ( &ibdev->port_gid, sizeof ( ibdev->port_gid ) );
-		
-
-	mac = ( ( struct ib_mac * ) netdev->ll_addr );
-	mac->qpn = htonl ( mlx->own_qp->qpn );
-	memcpy ( &mac->gid, &ibdev->port_gid, sizeof ( mac->gid ) );	
-#endif
-
-#if 0
-	DBG ( "MADS SND CQN = %#lx\n", dev_ib_data.mads_qp.snd_cq.cqn );
-	struct ib_completion_queue *test_cq;
-	test_cq = ib_create_cq ( &static_ibdev, 32 );
-	if ( test_cq ) {
-		DBG ( "Woot: create_cq() passed!\n" );
-	}
-#endif
-
-	ibdev->dev = &pci->dev;
-
-
-	struct ud_av_st *bcast_av = mlx->bcast_av;
-	struct arbelprm_ud_address_vector *bav =
-		( struct arbelprm_ud_address_vector * ) &bcast_av->av;
-	struct ib_address_vector *av = &hack_ipoib_bcast_av;
-	av->dest_qp = bcast_av->dest_qp;
-	av->qkey = bcast_av->qkey;
-	av->dlid = MLX_GET ( bav, rlid );
-	av->rate = ( MLX_GET ( bav, max_stat_rate ) ? 1 : 4 );
-	av->sl = MLX_GET ( bav, sl );
-	av->gid_present = 1;
-	memcpy ( &av->gid, ( ( void * ) bav ) + 16, 16 );
-
-
-	/* Register network device */
-	if ( ( rc = register_netdev ( netdev ) ) != 0 )
-		goto err_register_netdev;
-
-	return 0;
-
- err_query_dev_lim:
- err_register_netdev:
- err_ipoib_init:
-	ib_driver_close ( 0 );
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-	return rc;
-}
-
-/**
- * Remove PCI device
- *
- * @v pci		PCI device
- */
-static void arbel_remove ( struct pci_device *pci ) {
-	struct net_device *netdev = pci_get_drvdata ( pci );
-
-	unregister_netdev ( netdev );
-	ib_driver_close ( 0 );
-	netdev_nullify ( netdev );
-	netdev_put ( netdev );
-}
-
-#endif /* 0 */
-
-
-
 /**
  * Probe PCI device
  *

src/include/gpxe/infiniband.h

 #include <stdint.h>
 #include <gpxe/device.h>
 
-
-
-#if 0
-/** Infiniband MAC address length */
-#define IB_ALEN 20
-
-/** An Infiniband MAC address */
-struct ib_mac {
-	/** Queue pair number
-	 *
-	 * MSB must be zero; QPNs are only 24-bit.
-	 */
-	uint32_t qpn;
-	/** Port GID */
-	struct ib_gid gid;
-} __attribute__ (( packed ));
-
-/** Infiniband link-layer header length */
-#define IB_HLEN 4
-
-/** An Infiniband link-layer header */
-struct ibhdr {
-	/** Network-layer protocol */
-	uint16_t proto;
-	/** Reserved, must be zero */
-	uint16_t reserved;
-} __attribute__ (( packed ));
-#endif
-
-
-
-
-
-
-
-
 /** An Infiniband Global Identifier */
 struct ib_gid {
 	uint8_t bytes[16];
 	struct ib_mad_port_info port_info;
 } __attribute__ (( packed ));
 
-
-
-
-#if 0
-
-extern struct ll_protocol infiniband_protocol;
-
-extern const char * ib_ntoa ( const void *ll_addr );
-
-/**
- * Allocate Infiniband device
- *
- * @v priv_size		Size of driver private data
- * @ret netdev		Network device, or NULL
- */
-static inline struct net_device * alloc_ibdev ( size_t priv_size ) {
-	struct net_device *netdev;
-
-	netdev = alloc_netdev ( priv_size );
-	if ( netdev ) {
-		netdev->ll_protocol = &infiniband_protocol;
-	}
-	return netdev;
-}
-
-#endif
-
 #endif /* _GPXE_INFINIBAND_H */