diff options
Diffstat (limited to 'drivers/net/ethernet/fungible/funeth/funeth.h')
| -rw-r--r-- | drivers/net/ethernet/fungible/funeth/funeth.h | 171 |
1 files changed, 171 insertions, 0 deletions
diff --git a/drivers/net/ethernet/fungible/funeth/funeth.h b/drivers/net/ethernet/fungible/funeth/funeth.h new file mode 100644 index 000000000..1250e10d2 --- /dev/null +++ b/drivers/net/ethernet/fungible/funeth/funeth.h @@ -0,0 +1,171 @@ +/* SPDX-License-Identifier: (GPL-2.0-only OR BSD-3-Clause) */ + +#ifndef _FUNETH_H +#define _FUNETH_H + +#include <uapi/linux/if_ether.h> +#include <uapi/linux/net_tstamp.h> +#include <linux/mutex.h> +#include <linux/seqlock.h> +#include <linux/xarray.h> +#include <net/devlink.h> +#include "fun_dev.h" + +#define ADMIN_SQE_SIZE SZ_128 +#define ADMIN_CQE_SIZE SZ_64 +#define ADMIN_RSP_MAX_LEN (ADMIN_CQE_SIZE - sizeof(struct fun_cqe_info)) + +#define FUN_MAX_MTU 9024 + +#define SQ_DEPTH 512U +#define CQ_DEPTH 1024U +#define RQ_DEPTH (512U / (PAGE_SIZE / 4096)) + +#define CQ_INTCOAL_USEC 10 +#define CQ_INTCOAL_NPKT 16 +#define SQ_INTCOAL_USEC 10 +#define SQ_INTCOAL_NPKT 16 + +#define INVALID_LPORT 0xffff + +#define FUN_PORT_CAP_PAUSE_MASK (FUN_PORT_CAP_TX_PAUSE | FUN_PORT_CAP_RX_PAUSE) + +struct fun_vport_info { + u8 mac[ETH_ALEN]; + u16 vlan; + __be16 vlan_proto; + u8 qos; + u8 spoofchk:1; + u8 trusted:1; + unsigned int max_rate; +}; + +/* "subclass" of fun_dev for Ethernet functions */ +struct fun_ethdev { + struct fun_dev fdev; + + /* the function's network ports */ + struct net_device **netdevs; + unsigned int num_ports; + + /* configuration for the function's virtual ports */ + unsigned int num_vports; + struct fun_vport_info *vport_info; + + struct mutex state_mutex; /* nests inside RTNL if both taken */ + + unsigned int nsqs_per_port; +}; + +static inline struct fun_ethdev *to_fun_ethdev(struct fun_dev *p) +{ + return container_of(p, struct fun_ethdev, fdev); +} + +struct fun_qset { + struct funeth_rxq **rxqs; + struct funeth_txq **txqs; + struct funeth_txq **xdpqs; + unsigned int nrxqs; + unsigned int ntxqs; + unsigned int nxdpqs; + unsigned int rxq_start; + unsigned int txq_start; + unsigned int xdpq_start; + unsigned int cq_depth; + unsigned int rq_depth; + unsigned int sq_depth; + int state; +}; + +/* Per netdevice driver state, i.e., netdev_priv. */ +struct funeth_priv { + struct fun_dev *fdev; + struct pci_dev *pdev; + struct net_device *netdev; + + struct funeth_rxq * __rcu *rxqs; + struct funeth_txq **txqs; + struct funeth_txq * __rcu *xdpqs; + + struct xarray irqs; + unsigned int num_tx_irqs; + unsigned int num_rx_irqs; + unsigned int rx_irq_ofst; + + unsigned int lane_attrs; + u16 lport; + + /* link settings */ + u64 port_caps; + u64 advertising; + u64 lp_advertising; + unsigned int link_speed; + u8 xcvr_type; + u8 active_fc; + u8 active_fec; + u8 link_down_reason; + seqcount_t link_seq; + + u32 msg_enable; + + unsigned int num_xdpqs; + + /* ethtool, etc. config parameters */ + unsigned int sq_depth; + unsigned int rq_depth; + unsigned int cq_depth; + unsigned int cq_irq_db; + u8 tx_coal_usec; + u8 tx_coal_count; + u8 rx_coal_usec; + u8 rx_coal_count; + + struct hwtstamp_config hwtstamp_cfg; + + /* cumulative queue stats from earlier queue instances */ + u64 tx_packets; + u64 tx_bytes; + u64 tx_dropped; + u64 rx_packets; + u64 rx_bytes; + u64 rx_dropped; + + /* RSS */ + unsigned int rss_hw_id; + enum fun_eth_hash_alg hash_algo; + u8 rss_key[FUN_ETH_RSS_MAX_KEY_SIZE]; + unsigned int indir_table_nentries; + u32 indir_table[FUN_ETH_RSS_MAX_INDIR_ENT]; + dma_addr_t rss_dma_addr; + void *rss_cfg; + + /* DMA area for port stats */ + dma_addr_t stats_dma_addr; + __be64 *stats; + + struct bpf_prog *xdp_prog; + + struct devlink_port dl_port; + + /* kTLS state */ + unsigned int ktls_id; + atomic64_t tx_tls_add; + atomic64_t tx_tls_del; + atomic64_t tx_tls_resync; +}; + +void fun_set_ethtool_ops(struct net_device *netdev); +int fun_port_write_cmd(struct funeth_priv *fp, int key, u64 data); +int fun_port_read_cmd(struct funeth_priv *fp, int key, u64 *data); +int fun_create_and_bind_tx(struct funeth_priv *fp, u32 sqid); +int fun_replace_queues(struct net_device *dev, struct fun_qset *newqs, + struct netlink_ext_ack *extack); +int fun_change_num_queues(struct net_device *dev, unsigned int ntx, + unsigned int nrx); +void fun_set_ring_count(struct net_device *netdev, unsigned int ntx, + unsigned int nrx); +int fun_config_rss(struct net_device *dev, int algo, const u8 *key, + const u32 *qtable, u8 op); + +#endif /* _FUNETH_H */ |