include/linux/qed/qed_nvmetcp_if.h

Source file repositories/reference/linux-study-clean/include/linux/qed/qed_nvmetcp_if.h

File Facts

System
Linux kernel
Corpus path
include/linux/qed/qed_nvmetcp_if.h
Extension
.h
Size
7511 bytes
Lines
258
Domain
Core OS
Bucket
Core Kernel Interface
Inferred role
Core OS: implementation source
Status
source implementation candidate

Why This File Exists

Core operating-system implementation surface: boot, tasks, memory, VFS, syscall-facing interfaces, synchronization, credentials, and isolation.

Dependency Surface

Detected Declarations

Annotated Snippet

struct qed_dev_nvmetcp_info {
	struct qed_dev_info common;
	u8 port_id;  /* Physical port */
	u8 num_cqs;
};

#define MAX_TID_BLOCKS_NVMETCP (512)
struct qed_nvmetcp_tid {
	u32 size;		/* In bytes per task */
	u32 num_tids_per_block;
	u8 *blocks[MAX_TID_BLOCKS_NVMETCP];
};

struct qed_nvmetcp_id_params {
	u8 mac[ETH_ALEN];
	u32 ip[4];
	u16 port;
};

struct qed_nvmetcp_params_offload {
	/* FW initializations */
	dma_addr_t sq_pbl_addr;
	dma_addr_t nvmetcp_cccid_itid_table_addr;
	u16 nvmetcp_cccid_max_range;
	u8 default_cq;

	/* Networking and TCP stack initializations */
	struct qed_nvmetcp_id_params src;
	struct qed_nvmetcp_id_params dst;
	u32 ka_timeout;
	u32 ka_interval;
	u32 max_rt_time;
	u32 cwnd;
	u16 mss;
	u16 vlan_id;
	bool timestamp_en;
	bool delayed_ack_en;
	bool tcp_keep_alive_en;
	bool ecn_en;
	u8 ip_version;
	u8 ka_max_probe_cnt;
	u8 ttl;
	u8 tos_or_tc;
	u8 rcv_wnd_scale;
};

struct qed_nvmetcp_params_update {
	u32 max_io_size;
	u32 max_recv_pdu_length;
	u32 max_send_pdu_length;

	/* Placeholder: pfv, cpda, hpda */

	bool hdr_digest_en;
	bool data_digest_en;
};

struct qed_nvmetcp_cb_ops {
	struct qed_common_cb_ops common;
};

struct nvmetcp_sge {
	struct regpair sge_addr; /* SGE address */
	__le32 sge_len; /* SGE length */
	__le32 reserved;
};

/* IO path HSI function SGL params */
struct storage_sgl_task_params {
	struct nvmetcp_sge *sgl;
	struct regpair sgl_phys_addr;
	u32 total_buffer_size;
	u16 num_sges;
	bool small_mid_sge;
};

/* IO path HSI function FW task context params */
struct nvmetcp_task_params {
	void *context; /* Output parameter - set/filled by the HSI function */
	struct nvmetcp_wqe *sqe;
	u32 tx_io_size; /* in bytes (Without DIF, if exists) */
	u32 rx_io_size; /* in bytes (Without DIF, if exists) */
	u16 conn_icid;
	u16 itid;
	struct regpair opq; /* qedn_task_ctx address */
	u16 host_cccid;
	u8 cq_rss_number;
	bool send_write_incapsule;
};

Annotation

Implementation Notes