mirror of
https://git.kernel.org/pub/scm/linux/kernel/git/chenhuacai/linux-loongson
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ada3e24b84
Use the new virtchnl2 OP codes to communicate with the Control Plane to
add flow steering filters. We add the basic functionality for add/delete
with TCP/UDP IPv4 only. Support for other OP codes and protocols will be
added later.
Standard 'ethtool -N|--config-ntuple' should be used, for example:
# ethtool -N ens801f0d1 flow-type tcp4 src-ip 10.0.0.1 action 6
to route all IPv4/TCP traffic from IP 10.0.0.1 to queue 6.
Reviewed-by: Sridhar Samudrala <sridhar.samudrala@intel.com>
Signed-off-by: Ahmed Zaki <ahmed.zaki@intel.com>
Reviewed-by: Simon Horman <horms@kernel.org>
Signed-off-by: Tony Nguyen <anthony.l.nguyen@intel.com>
165 lines
6.5 KiB
C
165 lines
6.5 KiB
C
/* SPDX-License-Identifier: GPL-2.0-only */
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/* Copyright (C) 2024 Intel Corporation */
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#ifndef _IDPF_VIRTCHNL_H_
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#define _IDPF_VIRTCHNL_H_
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#define IDPF_VC_XN_MIN_TIMEOUT_MSEC 2000
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#define IDPF_VC_XN_DEFAULT_TIMEOUT_MSEC (60 * 1000)
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#define IDPF_VC_XN_IDX_M GENMASK(7, 0)
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#define IDPF_VC_XN_SALT_M GENMASK(15, 8)
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#define IDPF_VC_XN_RING_LEN U8_MAX
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/**
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* enum idpf_vc_xn_state - Virtchnl transaction status
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* @IDPF_VC_XN_IDLE: not expecting a reply, ready to be used
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* @IDPF_VC_XN_WAITING: expecting a reply, not yet received
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* @IDPF_VC_XN_COMPLETED_SUCCESS: a reply was expected and received, buffer
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* updated
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* @IDPF_VC_XN_COMPLETED_FAILED: a reply was expected and received, but there
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* was an error, buffer not updated
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* @IDPF_VC_XN_SHUTDOWN: transaction object cannot be used, VC torn down
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* @IDPF_VC_XN_ASYNC: transaction sent asynchronously and doesn't have the
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* return context; a callback may be provided to handle
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* return
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*/
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enum idpf_vc_xn_state {
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IDPF_VC_XN_IDLE = 1,
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IDPF_VC_XN_WAITING,
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IDPF_VC_XN_COMPLETED_SUCCESS,
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IDPF_VC_XN_COMPLETED_FAILED,
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IDPF_VC_XN_SHUTDOWN,
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IDPF_VC_XN_ASYNC,
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};
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struct idpf_vc_xn;
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/* Callback for asynchronous messages */
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typedef int (*async_vc_cb) (struct idpf_adapter *, struct idpf_vc_xn *,
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const struct idpf_ctlq_msg *);
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/**
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* struct idpf_vc_xn - Data structure representing virtchnl transactions
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* @completed: virtchnl event loop uses that to signal when a reply is
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* available, uses kernel completion API
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* @state: virtchnl event loop stores the data below, protected by the
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* completion's lock.
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* @reply_sz: Original size of reply, may be > reply_buf.iov_len; it will be
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* truncated on its way to the receiver thread according to
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* reply_buf.iov_len.
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* @reply: Reference to the buffer(s) where the reply data should be written
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* to. May be 0-length (then NULL address permitted) if the reply data
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* should be ignored.
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* @async_handler: if sent asynchronously, a callback can be provided to handle
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* the reply when it's received
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* @vc_op: corresponding opcode sent with this transaction
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* @idx: index used as retrieval on reply receive, used for cookie
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* @salt: changed every message to make unique, used for cookie
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*/
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struct idpf_vc_xn {
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struct completion completed;
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enum idpf_vc_xn_state state;
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size_t reply_sz;
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struct kvec reply;
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async_vc_cb async_handler;
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u32 vc_op;
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u8 idx;
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u8 salt;
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};
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/**
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* struct idpf_vc_xn_params - Parameters for executing transaction
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* @send_buf: kvec for send buffer
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* @recv_buf: kvec for recv buffer, may be NULL, must then have zero length
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* @timeout_ms: timeout to wait for reply
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* @async: send message asynchronously, will not wait on completion
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* @async_handler: If sent asynchronously, optional callback handler. The user
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* must be careful when using async handlers as the memory for
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* the recv_buf _cannot_ be on stack if this is async.
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* @vc_op: virtchnl op to send
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*/
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struct idpf_vc_xn_params {
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struct kvec send_buf;
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struct kvec recv_buf;
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int timeout_ms;
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bool async;
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async_vc_cb async_handler;
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u32 vc_op;
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};
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struct idpf_adapter;
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struct idpf_netdev_priv;
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struct idpf_vec_regs;
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struct idpf_vport;
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struct idpf_vport_max_q;
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struct idpf_vport_user_config_data;
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ssize_t idpf_vc_xn_exec(struct idpf_adapter *adapter,
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const struct idpf_vc_xn_params *params);
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int idpf_init_dflt_mbx(struct idpf_adapter *adapter);
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void idpf_deinit_dflt_mbx(struct idpf_adapter *adapter);
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int idpf_vc_core_init(struct idpf_adapter *adapter);
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void idpf_vc_core_deinit(struct idpf_adapter *adapter);
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int idpf_get_reg_intr_vecs(struct idpf_vport *vport,
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struct idpf_vec_regs *reg_vals);
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int idpf_queue_reg_init(struct idpf_vport *vport);
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int idpf_vport_queue_ids_init(struct idpf_vport *vport);
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bool idpf_vport_is_cap_ena(struct idpf_vport *vport, u16 flag);
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bool idpf_sideband_flow_type_ena(struct idpf_vport *vport, u32 flow_type);
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bool idpf_sideband_action_ena(struct idpf_vport *vport,
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struct ethtool_rx_flow_spec *fsp);
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unsigned int idpf_fsteer_max_rules(struct idpf_vport *vport);
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int idpf_recv_mb_msg(struct idpf_adapter *adapter);
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int idpf_send_mb_msg(struct idpf_adapter *adapter, u32 op,
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u16 msg_size, u8 *msg, u16 cookie);
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void idpf_vport_init(struct idpf_vport *vport, struct idpf_vport_max_q *max_q);
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u32 idpf_get_vport_id(struct idpf_vport *vport);
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int idpf_send_create_vport_msg(struct idpf_adapter *adapter,
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struct idpf_vport_max_q *max_q);
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int idpf_send_destroy_vport_msg(struct idpf_vport *vport);
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int idpf_send_enable_vport_msg(struct idpf_vport *vport);
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int idpf_send_disable_vport_msg(struct idpf_vport *vport);
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int idpf_vport_adjust_qs(struct idpf_vport *vport);
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int idpf_vport_alloc_max_qs(struct idpf_adapter *adapter,
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struct idpf_vport_max_q *max_q);
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void idpf_vport_dealloc_max_qs(struct idpf_adapter *adapter,
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struct idpf_vport_max_q *max_q);
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int idpf_send_add_queues_msg(const struct idpf_vport *vport, u16 num_tx_q,
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u16 num_complq, u16 num_rx_q, u16 num_rx_bufq);
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int idpf_send_delete_queues_msg(struct idpf_vport *vport);
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int idpf_send_enable_queues_msg(struct idpf_vport *vport);
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int idpf_send_disable_queues_msg(struct idpf_vport *vport);
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int idpf_send_config_queues_msg(struct idpf_vport *vport);
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int idpf_vport_alloc_vec_indexes(struct idpf_vport *vport);
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int idpf_get_vec_ids(struct idpf_adapter *adapter,
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u16 *vecids, int num_vecids,
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struct virtchnl2_vector_chunks *chunks);
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int idpf_send_alloc_vectors_msg(struct idpf_adapter *adapter, u16 num_vectors);
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int idpf_send_dealloc_vectors_msg(struct idpf_adapter *adapter);
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int idpf_send_map_unmap_queue_vector_msg(struct idpf_vport *vport, bool map);
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int idpf_add_del_mac_filters(struct idpf_vport *vport,
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struct idpf_netdev_priv *np,
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bool add, bool async);
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int idpf_set_promiscuous(struct idpf_adapter *adapter,
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struct idpf_vport_user_config_data *config_data,
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u32 vport_id);
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int idpf_check_supported_desc_ids(struct idpf_vport *vport);
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int idpf_send_get_rx_ptype_msg(struct idpf_vport *vport);
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int idpf_send_ena_dis_loopback_msg(struct idpf_vport *vport);
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int idpf_send_get_stats_msg(struct idpf_vport *vport);
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int idpf_send_set_sriov_vfs_msg(struct idpf_adapter *adapter, u16 num_vfs);
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int idpf_send_get_set_rss_key_msg(struct idpf_vport *vport, bool get);
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int idpf_send_get_set_rss_lut_msg(struct idpf_vport *vport, bool get);
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void idpf_vc_xn_shutdown(struct idpf_vc_xn_manager *vcxn_mngr);
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int idpf_idc_rdma_vc_send_sync(struct iidc_rdma_core_dev_info *cdev_info,
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u8 *send_msg, u16 msg_size,
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u8 *recv_msg, u16 *recv_len);
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#endif /* _IDPF_VIRTCHNL_H_ */
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