1  /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-2-Clause) */
2  /* Copyright (C) 2017-2018 Netronome Systems, Inc. */
3  
4  #ifndef _NFP_PORT_H_
5  #define _NFP_PORT_H_
6  
7  #include <net/devlink.h>
8  
9  struct net_device;
10  struct netdev_phys_item_id;
11  struct nfp_app;
12  struct nfp_pf;
13  struct nfp_port;
14  
15  /**
16   * enum nfp_port_type - type of port NFP can switch traffic to
17   * @NFP_PORT_INVALID:	port is invalid, %NFP_PORT_PHYS_PORT transitions to this
18   *			state when port disappears because of FW fault or config
19   *			change
20   * @NFP_PORT_PHYS_PORT:	external NIC port
21   * @NFP_PORT_PF_PORT:	logical port of PCI PF
22   * @NFP_PORT_VF_PORT:	logical port of PCI VF
23   */
24  enum nfp_port_type {
25  	NFP_PORT_INVALID,
26  	NFP_PORT_PHYS_PORT,
27  	NFP_PORT_PF_PORT,
28  	NFP_PORT_VF_PORT,
29  };
30  
31  /**
32   * enum nfp_port_flags - port flags (can be type-specific)
33   * @NFP_PORT_CHANGED:	port state has changed since last eth table refresh;
34   *			for NFP_PORT_PHYS_PORT, never set otherwise; must hold
35   *			rtnl_lock to clear
36   */
37  enum nfp_port_flags {
38  	NFP_PORT_CHANGED = 0,
39  };
40  
41  enum {
42  	NFP_SPEED_1G,
43  	NFP_SPEED_10G,
44  	NFP_SPEED_25G,
45  	NFP_SPEED_40G,
46  	NFP_SPEED_50G,
47  	NFP_SPEED_100G,
48  	NFP_SUP_SPEED_NUMBER
49  };
50  
51  /**
52   * struct nfp_port - structure representing NFP port
53   * @netdev:	backpointer to associated netdev
54   * @type:	what port type does the entity represent
55   * @flags:	port flags
56   * @tc_offload_cnt:	number of active TC offloads, how offloads are counted
57   *			is not defined, use as a boolean
58   * @app:	backpointer to the app structure
59   * @link_cb:	callback when link status changed
60   * @dl_port:	devlink port structure
61   * @eth_id:	for %NFP_PORT_PHYS_PORT port ID in NFP enumeration scheme
62   * @eth_forced:	for %NFP_PORT_PHYS_PORT port is forced UP or DOWN, don't change
63   * @eth_port:	for %NFP_PORT_PHYS_PORT translated ETH Table port entry
64   * @eth_stats:	for %NFP_PORT_PHYS_PORT MAC stats if available
65   * @speed_bitmap:	for %NFP_PORT_PHYS_PORT supported speed bitmap
66   * @pf_id:	for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT ID of the PCI PF (0-3)
67   * @vf_id:	for %NFP_PORT_VF_PORT ID of the PCI VF within @pf_id
68   * @pf_split:	for %NFP_PORT_PF_PORT %true if PCI PF has more than one vNIC
69   * @pf_split_id:for %NFP_PORT_PF_PORT ID of PCI PF vNIC (valid if @pf_split)
70   * @vnic:	for %NFP_PORT_PF_PORT, %NFP_PORT_VF_PORT vNIC ctrl memory
71   * @port_list:	entry on pf's list of ports
72   */
73  struct nfp_port {
74  	struct net_device *netdev;
75  	enum nfp_port_type type;
76  
77  	unsigned long flags;
78  	unsigned long tc_offload_cnt;
79  
80  	struct nfp_app *app;
81  	void (*link_cb)(struct nfp_port *port);
82  
83  	struct devlink_port dl_port;
84  
85  	union {
86  		/* NFP_PORT_PHYS_PORT */
87  		struct {
88  			unsigned int eth_id;
89  			bool eth_forced;
90  			struct nfp_eth_table_port *eth_port;
91  			u8 __iomem *eth_stats;
92  			DECLARE_BITMAP(speed_bitmap, NFP_SUP_SPEED_NUMBER);
93  		};
94  		/* NFP_PORT_PF_PORT, NFP_PORT_VF_PORT */
95  		struct {
96  			unsigned int pf_id;
97  			unsigned int vf_id;
98  			bool pf_split;
99  			unsigned int pf_split_id;
100  			u8 __iomem *vnic;
101  		};
102  	};
103  
104  	struct list_head port_list;
105  };
106  
107  extern const struct ethtool_ops nfp_port_ethtool_ops;
108  
109  int nfp_port_setup_tc(struct net_device *netdev, enum tc_setup_type type,
110  		      void *type_data);
111  
nfp_port_is_vnic(const struct nfp_port * port)112  static inline bool nfp_port_is_vnic(const struct nfp_port *port)
113  {
114  	return port->type == NFP_PORT_PF_PORT || port->type == NFP_PORT_VF_PORT;
115  }
116  
117  int
118  nfp_port_set_features(struct net_device *netdev, netdev_features_t features);
119  
120  struct nfp_port *nfp_port_from_netdev(struct net_device *netdev);
121  int nfp_port_get_port_parent_id(struct net_device *netdev,
122  				struct netdev_phys_item_id *ppid);
123  struct nfp_eth_table_port *__nfp_port_get_eth_port(struct nfp_port *port);
124  struct nfp_eth_table_port *nfp_port_get_eth_port(struct nfp_port *port);
125  
126  int
127  nfp_port_get_phys_port_name(struct net_device *netdev, char *name, size_t len);
128  int nfp_port_configure(struct net_device *netdev, bool configed);
129  
130  struct nfp_port *
131  nfp_port_alloc(struct nfp_app *app, enum nfp_port_type type,
132  	       struct net_device *netdev);
133  void nfp_port_free(struct nfp_port *port);
134  
135  int nfp_port_init_phy_port(struct nfp_pf *pf, struct nfp_app *app,
136  			   struct nfp_port *port, unsigned int id);
137  
138  int nfp_net_refresh_eth_port(struct nfp_port *port);
139  void nfp_net_refresh_port_table(struct nfp_port *port);
140  int nfp_net_refresh_port_table_sync(struct nfp_pf *pf);
141  
142  int nfp_devlink_port_register(struct nfp_app *app, struct nfp_port *port);
143  void nfp_devlink_port_unregister(struct nfp_port *port);
144  
145  /* Mac stats (0x0000 - 0x0200)
146   * all counters are 64bit.
147   */
148  #define NFP_MAC_STATS_BASE                0x0000
149  #define NFP_MAC_STATS_SIZE                0x0200
150  
151  #define NFP_MAC_STATS_RX_IN_OCTETS			(NFP_MAC_STATS_BASE + 0x000)
152  							/* unused 0x008 */
153  #define NFP_MAC_STATS_RX_FRAME_TOO_LONG_ERRORS		(NFP_MAC_STATS_BASE + 0x010)
154  #define NFP_MAC_STATS_RX_RANGE_LENGTH_ERRORS		(NFP_MAC_STATS_BASE + 0x018)
155  #define NFP_MAC_STATS_RX_VLAN_RECEIVED_OK		(NFP_MAC_STATS_BASE + 0x020)
156  #define NFP_MAC_STATS_RX_IN_ERRORS			(NFP_MAC_STATS_BASE + 0x028)
157  #define NFP_MAC_STATS_RX_IN_BROADCAST_PKTS		(NFP_MAC_STATS_BASE + 0x030)
158  #define NFP_MAC_STATS_RX_DROP_EVENTS			(NFP_MAC_STATS_BASE + 0x038)
159  #define NFP_MAC_STATS_RX_ALIGNMENT_ERRORS		(NFP_MAC_STATS_BASE + 0x040)
160  #define NFP_MAC_STATS_RX_PAUSE_MAC_CTRL_FRAMES		(NFP_MAC_STATS_BASE + 0x048)
161  #define NFP_MAC_STATS_RX_FRAMES_RECEIVED_OK		(NFP_MAC_STATS_BASE + 0x050)
162  #define NFP_MAC_STATS_RX_FRAME_CHECK_SEQUENCE_ERRORS	(NFP_MAC_STATS_BASE + 0x058)
163  #define NFP_MAC_STATS_RX_UNICAST_PKTS			(NFP_MAC_STATS_BASE + 0x060)
164  #define NFP_MAC_STATS_RX_MULTICAST_PKTS			(NFP_MAC_STATS_BASE + 0x068)
165  #define NFP_MAC_STATS_RX_PKTS				(NFP_MAC_STATS_BASE + 0x070)
166  #define NFP_MAC_STATS_RX_UNDERSIZE_PKTS			(NFP_MAC_STATS_BASE + 0x078)
167  #define NFP_MAC_STATS_RX_PKTS_64_OCTETS			(NFP_MAC_STATS_BASE + 0x080)
168  #define NFP_MAC_STATS_RX_PKTS_65_TO_127_OCTETS		(NFP_MAC_STATS_BASE + 0x088)
169  #define NFP_MAC_STATS_RX_PKTS_512_TO_1023_OCTETS	(NFP_MAC_STATS_BASE + 0x090)
170  #define NFP_MAC_STATS_RX_PKTS_1024_TO_1518_OCTETS	(NFP_MAC_STATS_BASE + 0x098)
171  #define NFP_MAC_STATS_RX_JABBERS			(NFP_MAC_STATS_BASE + 0x0a0)
172  #define NFP_MAC_STATS_RX_FRAGMENTS			(NFP_MAC_STATS_BASE + 0x0a8)
173  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS2		(NFP_MAC_STATS_BASE + 0x0b0)
174  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS3		(NFP_MAC_STATS_BASE + 0x0b8)
175  #define NFP_MAC_STATS_RX_PKTS_128_TO_255_OCTETS		(NFP_MAC_STATS_BASE + 0x0c0)
176  #define NFP_MAC_STATS_RX_PKTS_256_TO_511_OCTETS		(NFP_MAC_STATS_BASE + 0x0c8)
177  #define NFP_MAC_STATS_RX_PKTS_1519_TO_MAX_OCTETS	(NFP_MAC_STATS_BASE + 0x0d0)
178  #define NFP_MAC_STATS_RX_OVERSIZE_PKTS			(NFP_MAC_STATS_BASE + 0x0d8)
179  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS0		(NFP_MAC_STATS_BASE + 0x0e0)
180  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS1		(NFP_MAC_STATS_BASE + 0x0e8)
181  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS4		(NFP_MAC_STATS_BASE + 0x0f0)
182  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS5		(NFP_MAC_STATS_BASE + 0x0f8)
183  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS6		(NFP_MAC_STATS_BASE + 0x100)
184  #define NFP_MAC_STATS_RX_PAUSE_FRAMES_CLASS7		(NFP_MAC_STATS_BASE + 0x108)
185  #define NFP_MAC_STATS_RX_MAC_CTRL_FRAMES_RECEIVED	(NFP_MAC_STATS_BASE + 0x110)
186  #define NFP_MAC_STATS_RX_MAC_HEAD_DROP			(NFP_MAC_STATS_BASE + 0x118)
187  							/* unused 0x120 */
188  							/* unused 0x128 */
189  							/* unused 0x130 */
190  #define NFP_MAC_STATS_TX_QUEUE_DROP			(NFP_MAC_STATS_BASE + 0x138)
191  #define NFP_MAC_STATS_TX_OUT_OCTETS			(NFP_MAC_STATS_BASE + 0x140)
192  							/* unused 0x148 */
193  #define NFP_MAC_STATS_TX_VLAN_TRANSMITTED_OK		(NFP_MAC_STATS_BASE + 0x150)
194  #define NFP_MAC_STATS_TX_OUT_ERRORS			(NFP_MAC_STATS_BASE + 0x158)
195  #define NFP_MAC_STATS_TX_BROADCAST_PKTS			(NFP_MAC_STATS_BASE + 0x160)
196  #define NFP_MAC_STATS_TX_PKTS_64_OCTETS			(NFP_MAC_STATS_BASE + 0x168)
197  #define NFP_MAC_STATS_TX_PKTS_256_TO_511_OCTETS		(NFP_MAC_STATS_BASE + 0x170)
198  #define NFP_MAC_STATS_TX_PKTS_512_TO_1023_OCTETS	(NFP_MAC_STATS_BASE + 0x178)
199  #define NFP_MAC_STATS_TX_PAUSE_MAC_CTRL_FRAMES		(NFP_MAC_STATS_BASE + 0x180)
200  #define NFP_MAC_STATS_TX_FRAMES_TRANSMITTED_OK		(NFP_MAC_STATS_BASE + 0x188)
201  #define NFP_MAC_STATS_TX_UNICAST_PKTS			(NFP_MAC_STATS_BASE + 0x190)
202  #define NFP_MAC_STATS_TX_MULTICAST_PKTS			(NFP_MAC_STATS_BASE + 0x198)
203  #define NFP_MAC_STATS_TX_PKTS_65_TO_127_OCTETS		(NFP_MAC_STATS_BASE + 0x1a0)
204  #define NFP_MAC_STATS_TX_PKTS_128_TO_255_OCTETS		(NFP_MAC_STATS_BASE + 0x1a8)
205  #define NFP_MAC_STATS_TX_PKTS_1024_TO_1518_OCTETS	(NFP_MAC_STATS_BASE + 0x1b0)
206  #define NFP_MAC_STATS_TX_PKTS_1519_TO_MAX_OCTETS	(NFP_MAC_STATS_BASE + 0x1b8)
207  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS0		(NFP_MAC_STATS_BASE + 0x1c0)
208  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS1		(NFP_MAC_STATS_BASE + 0x1c8)
209  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS4		(NFP_MAC_STATS_BASE + 0x1d0)
210  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS5		(NFP_MAC_STATS_BASE + 0x1d8)
211  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS2		(NFP_MAC_STATS_BASE + 0x1e0)
212  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS3		(NFP_MAC_STATS_BASE + 0x1e8)
213  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS6		(NFP_MAC_STATS_BASE + 0x1f0)
214  #define NFP_MAC_STATS_TX_PAUSE_FRAMES_CLASS7		(NFP_MAC_STATS_BASE + 0x1f8)
215  
216  #endif
217