1 /* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */
6 #include <uapi/linux/if_ether.h>
7 #include <uapi/linux/net_tstamp.h>
8 #include <linux/mutex.h>
9 #include <linux/seqlock.h>
10 #include <linux/xarray.h>
11 #include <net/devlink.h>
14 #define ADMIN_SQE_SIZE SZ_128
15 #define ADMIN_CQE_SIZE SZ_64
16 #define ADMIN_RSP_MAX_LEN (ADMIN_CQE_SIZE - sizeof(struct fun_cqe_info))
18 #define FUN_MAX_MTU 9024
21 #define CQ_DEPTH 1024U
22 #define RQ_DEPTH (512U / (PAGE_SIZE / 4096))
24 #define CQ_INTCOAL_USEC 10
25 #define CQ_INTCOAL_NPKT 16
26 #define SQ_INTCOAL_USEC 10
27 #define SQ_INTCOAL_NPKT 16
29 #define INVALID_LPORT 0xffff
31 #define FUN_PORT_CAP_PAUSE_MASK (FUN_PORT_CAP_TX_PAUSE | FUN_PORT_CAP_RX_PAUSE)
33 struct fun_vport_info {
40 unsigned int max_rate;
43 /* "subclass" of fun_dev for Ethernet functions */
47 /* the function's network ports */
48 struct net_device **netdevs;
49 unsigned int num_ports;
51 /* configuration for the function's virtual ports */
52 unsigned int num_vports;
53 struct fun_vport_info *vport_info;
55 struct mutex state_mutex; /* nests inside RTNL if both taken */
57 unsigned int nsqs_per_port;
60 static inline struct fun_ethdev *to_fun_ethdev(struct fun_dev *p)
62 return container_of(p, struct fun_ethdev, fdev);
66 struct funeth_rxq **rxqs;
67 struct funeth_txq **txqs;
68 struct funeth_txq **xdpqs;
72 unsigned int rxq_start;
73 unsigned int txq_start;
74 unsigned int xdpq_start;
75 unsigned int cq_depth;
76 unsigned int rq_depth;
77 unsigned int sq_depth;
81 /* Per netdevice driver state, i.e., netdev_priv. */
85 struct net_device *netdev;
87 struct funeth_rxq * __rcu *rxqs;
88 struct funeth_txq **txqs;
89 struct funeth_txq * __rcu *xdpqs;
92 unsigned int num_tx_irqs;
93 unsigned int num_rx_irqs;
94 unsigned int rx_irq_ofst;
96 unsigned int lane_attrs;
103 unsigned int link_speed;
112 unsigned int num_xdpqs;
114 /* ethtool, etc. config parameters */
115 unsigned int sq_depth;
116 unsigned int rq_depth;
117 unsigned int cq_depth;
118 unsigned int cq_irq_db;
124 struct hwtstamp_config hwtstamp_cfg;
126 /* cumulative queue stats from earlier queue instances */
135 unsigned int rss_hw_id;
136 enum fun_eth_hash_alg hash_algo;
137 u8 rss_key[FUN_ETH_RSS_MAX_KEY_SIZE];
138 unsigned int indir_table_nentries;
139 u32 indir_table[FUN_ETH_RSS_MAX_INDIR_ENT];
140 dma_addr_t rss_dma_addr;
143 /* DMA area for port stats */
144 dma_addr_t stats_dma_addr;
147 struct bpf_prog *xdp_prog;
149 struct devlink_port dl_port;
152 unsigned int ktls_id;
153 atomic64_t tx_tls_add;
154 atomic64_t tx_tls_del;
155 atomic64_t tx_tls_resync;
158 void fun_set_ethtool_ops(struct net_device *netdev);
159 int fun_port_write_cmd(struct funeth_priv *fp, int key, u64 data);
160 int fun_port_read_cmd(struct funeth_priv *fp, int key, u64 *data);
161 int fun_create_and_bind_tx(struct funeth_priv *fp, u32 sqid);
162 int fun_replace_queues(struct net_device *dev, struct fun_qset *newqs,
163 struct netlink_ext_ack *extack);
164 int fun_change_num_queues(struct net_device *dev, unsigned int ntx,
166 void fun_set_ring_count(struct net_device *netdev, unsigned int ntx,
168 int fun_config_rss(struct net_device *dev, int algo, const u8 *key,
169 const u32 *qtable, u8 op);
171 #endif /* _FUNETH_H */