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