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/* SPDX-License-Identifier: GPL-2.0 */
/* Copyright(c) 2013 - 2018 Intel Corporation. */
#ifndef _IAVF_CLIENT_H_
#define _IAVF_CLIENT_H_
#define IAVF_CLIENT_STR_LENGTH 10
/* Client interface version should be updated anytime there is a change in the
* existing APIs or data structures.
*/
#define IAVF_CLIENT_VERSION_MAJOR 0
#define IAVF_CLIENT_VERSION_MINOR 01
#define IAVF_CLIENT_VERSION_BUILD 00
#define IAVF_CLIENT_VERSION_STR \
__stringify(IAVF_CLIENT_VERSION_MAJOR) "." \
__stringify(IAVF_CLIENT_VERSION_MINOR) "." \
__stringify(IAVF_CLIENT_VERSION_BUILD)
struct iavf_client_version {
u8 major;
u8 minor;
u8 build;
u8 rsvd;
};
enum iavf_client_state {
__IAVF_CLIENT_NULL,
__IAVF_CLIENT_REGISTERED
};
enum iavf_client_instance_state {
__IAVF_CLIENT_INSTANCE_NONE,
__IAVF_CLIENT_INSTANCE_OPENED,
};
struct iavf_ops;
struct iavf_client;
/* HW does not define a type value for AEQ; only for RX/TX and CEQ.
* In order for us to keep the interface simple, SW will define a
* unique type value for AEQ.
*/
#define IAVF_QUEUE_TYPE_PE_AEQ 0x80
#define IAVF_QUEUE_INVALID_IDX 0xFFFF
struct iavf_qv_info {
u32 v_idx; /* msix_vector */
u16 ceq_idx;
u16 aeq_idx;
u8 itr_idx;
};
struct iavf_qvlist_info {
u32 num_vectors;
struct iavf_qv_info qv_info[];
};
#define IAVF_CLIENT_MSIX_ALL 0xFFFFFFFF
/* set of LAN parameters useful for clients managed by LAN */
/* Struct to hold per priority info */
struct iavf_prio_qos_params {
u16 qs_handle; /* qs handle for prio */
u8 tc; /* TC mapped to prio */
u8 reserved;
};
#define IAVF_CLIENT_MAX_USER_PRIORITY 8
/* Struct to hold Client QoS */
struct iavf_qos_params {
struct iavf_prio_qos_params prio_qos[IAVF_CLIENT_MAX_USER_PRIORITY];
};
struct iavf_params {
struct iavf_qos_params qos;
u16 mtu;
u16 link_up; /* boolean */
};
/* Structure to hold LAN device info for a client device */
struct iavf_info {
struct iavf_client_version version;
u8 lanmac[6];
struct net_device *netdev;
struct pci_dev *pcidev;
u8 __iomem *hw_addr;
u8 fid; /* function id, PF id or VF id */
#define IAVF_CLIENT_FTYPE_PF 0
#define IAVF_CLIENT_FTYPE_VF 1
u8 ftype; /* function type, PF or VF */
void *vf; /* cast to iavf_adapter */
/* All L2 params that could change during the life span of the device
* and needs to be communicated to the client when they change
*/
struct iavf_params params;
struct iavf_ops *ops;
u16 msix_count; /* number of msix vectors*/
/* Array down below will be dynamically allocated based on msix_count */
struct msix_entry *msix_entries;
u16 itr_index; /* Which ITR index the PE driver is suppose to use */
};
struct iavf_ops {
/* setup_q_vector_list enables queues with a particular vector */
int (*setup_qvlist)(struct iavf_info *ldev, struct iavf_client *client,
struct iavf_qvlist_info *qv_info);
u32 (*virtchnl_send)(struct iavf_info *ldev, struct iavf_client *client,
u8 *msg, u16 len);
/* If the PE Engine is unresponsive, RDMA driver can request a reset.*/
void (*request_reset)(struct iavf_info *ldev,
struct iavf_client *client);
};
struct iavf_client_ops {
/* Should be called from register_client() or whenever the driver is
* ready to create a specific client instance.
*/
int (*open)(struct iavf_info *ldev, struct iavf_client *client);
/* Should be closed when netdev is unavailable or when unregister
* call comes in. If the close happens due to a reset, set the reset
* bit to true.
*/
void (*close)(struct iavf_info *ldev, struct iavf_client *client,
bool reset);
/* called when some l2 managed parameters changes - mss */
void (*l2_param_change)(struct iavf_info *ldev,
struct iavf_client *client,
struct iavf_params *params);
/* called when a message is received from the PF */
int (*virtchnl_receive)(struct iavf_info *ldev,
struct iavf_client *client,
u8 *msg, u16 len);
};
/* Client device */
struct iavf_client_instance {
struct list_head list;
struct iavf_info lan_info;
struct iavf_client *client;
unsigned long state;
};
struct iavf_client {
struct list_head list; /* list of registered clients */
char name[IAVF_CLIENT_STR_LENGTH];
struct iavf_client_version version;
unsigned long state; /* client state */
atomic_t ref_cnt; /* Count of all the client devices of this kind */
u32 flags;
#define IAVF_CLIENT_FLAGS_LAUNCH_ON_PROBE BIT(0)
#define IAVF_TX_FLAGS_NOTIFY_OTHER_EVENTS BIT(2)
u8 type;
#define IAVF_CLIENT_RDMA 0
struct iavf_client_ops *ops; /* client ops provided by the client */
};
/* used by clients */
int iavf_register_client(struct iavf_client *client);
int iavf_unregister_client(struct iavf_client *client);
#endif /* _IAVF_CLIENT_H_ */
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