netronome/nfp/nfp_net.h

1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2 /* Copyright (C) 2015-2018 Netronome Systems, Inc. */
20 #include <linux/io-64-nonatomic-hi-lo.h>
31 		if (__nn->dp.netdev)					\
32 			netdev_printk(lvl, __nn->dp.netdev, fmt, ## args); \
34 			dev_printk(lvl, __nn->dp.dev, "ctrl: " fmt, ## args); \
47 			if (__dp->netdev)				\
48 				netdev_warn(__dp->netdev, fmt, ## args); \
50 				dev_warn(__dp->dev, fmt, ## args);	\
113 #define D_IDX(ring, idx)	((idx) & ((ring)->cnt - 1))
121 		__d->dma_addr_lo = cpu_to_le32(lower_32_bits(__addr));	\
122 		__d->dma_addr_hi = upper_32_bits(__addr) & 0xff;	\
169  * struct nfp_net_tx_buf - software TX buffer descriptor
173  * @fidx:	Fragment index (-1 for the head and [0..nr_frags-1] for frags)
176  *		Will be 1 for all non-TSO packets.
178  *		on the head's buffer). Equal to skb->len for non-TSO packets.
192  * struct nfp_net_tx_ring - TX ring structure
196  * @qcp_q:      Pointer to base of the QCP TX queue
290 #define NFP_NET_META_FIELD_MASK GENMASK(NFP_NET_META_FIELD_SIZE - 1, 0)
307  * struct nfp_net_rx_buf - software RX buffer descriptor
317  * struct nfp_net_rx_ring - RX ring structure
324  * @qcp_fl:     Pointer to base of the QCP freelist queue
327  * @xdp_rxq:    RX-ring info avail for XDP
353  * struct nfp_net_r_vector - Per ring interrupt vector configuration
355  * @napi:           NAPI structure for this ring vec
362  * @irq_entry:      MSI-X table entry (use for talking to the device)
461 	return fw_ver->resv == resv &&  in nfp_net_fw_ver_eq()
462 	       fw_ver->class == class &&  in nfp_net_fw_ver_eq()
463 	       fw_ver->major == major &&  in nfp_net_fw_ver_eq()
464 	       fw_ver->minor == minor;  in nfp_net_fw_ver_eq()
473  * struct nfp_net_dp - NFP network device datapath data structure
485  * @tx_rings:		Array of pre-allocated TX ring structures
486  * @rx_rings:		Array of pre-allocated RX ring structures
535  * struct nfp_net - NFP network device structure
552  * @r_vecs:             Pre-allocated array of ring vectors
553  * @irq_entries:        Pre-allocated array of MSI-X entries
601  * @vnic_no_name:	For non-port PF vNIC make ndo_get_phys_port_name return
602  *			-EOPNOTSUPP to keep backwards compatibility (set by app)
707 	return readb(nn->dp.ctrl_bar + off);  in nn_readb()
712 	writeb(val, nn->dp.ctrl_bar + off);  in nn_writeb()
717 	return readw(nn->dp.ctrl_bar + off);  in nn_readw()
722 	writew(val, nn->dp.ctrl_bar + off);  in nn_writew()
727 	return readl(nn->dp.ctrl_bar + off);  in nn_readl()
732 	writel(val, nn->dp.ctrl_bar + off);  in nn_writel()
737 	return readq(nn->dp.ctrl_bar + off);  in nn_readq()
742 	writeq(val, nn->dp.ctrl_bar + off);  in nn_writeq()
773 /* nfp_qcp_ptr - Read or Write Pointer of a queue */
797 		val -= NFP_QCP_MAX_ADD;  in _nfp_qcp_ptr_add()
804  * nfp_qcp_rd_ptr_add() - Add the value to the read pointer of a queue
806  * @q:   Base address for queue structure
817  * nfp_qcp_wr_ptr_add() - Add the value to the write pointer of a queue
819  * @q:   Base address for queue structure
848  * nfp_qcp_rd_ptr_read() - Read the current read pointer value for a queue
849  * @q:  Base address for queue structure
859  * nfp_qcp_wr_ptr_read() - Read the current write pointer value for a queue
860  * @q:  Base address for queue structure
871 	WARN_ON_ONCE(!nn->dp.netdev && nn->port);  in nfp_net_is_data_vnic()
872 	return !!nn->dp.netdev;  in nfp_net_is_data_vnic()
877 	return nn->dp.ctrl & NFP_NET_CFG_CTRL_ENABLE;  in nfp_net_running()
882 	return nn->dp.netdev ? nn->dp.netdev->name : "ctrl";  in nfp_net_name()
886 	__acquires(&nn->r_vecs[0].lock)  in nfp_ctrl_lock()
888 	spin_lock_bh(&nn->r_vecs[0].lock);  in nfp_ctrl_lock()
892 	__releases(&nn->r_vecs[0].lock)  in nfp_ctrl_unlock()
894 	spin_unlock_bh(&nn->r_vecs[0].lock);  in nfp_ctrl_unlock()
899 	down(&nn->bar_lock);  in nn_ctrl_bar_lock()
904 	return !down_trylock(&nn->bar_lock);  in nn_ctrl_bar_trylock()
909 	up(&nn->bar_lock);  in nn_ctrl_bar_unlock()
919 	return netdev->netdev_ops == &nfp_net_netdev_ops;  in nfp_netdev_is_nfp_net()