c2_wr.h

linux内核源码

	u32 remote_stag;
	u32 length;
} __attribute__((packed));

union c2wr_rdma_read {
	struct c2wr_rdma_read_req req;
	struct c2wr_ce rep;
} __attribute__((packed));

struct c2wr_mw_bind_req {
	struct c2_sq_hdr sq_hdr;
	u64 va;
	u8 stag_key;
	u8 pad[3];
	u32 mw_stag_index;
	u32 mr_stag_index;
	u32 length;
	u32 flags;
} __attribute__((packed));

union c2wr_mw_bind {
	struct c2wr_mw_bind_req req;
	struct c2wr_ce rep;
} __attribute__((packed));

struct c2wr_nsmr_fastreg_req {
	struct c2_sq_hdr sq_hdr;
	u64 va;
	u8 stag_key;
	u8 pad[3];
	u32 stag_index;
	u32 pbe_size;
	u32 fbo;
	u32 length;
	u32 addrs_length;
	/* array of paddrs (must be aligned on a 64bit boundary) */
	u64 paddrs[0];
} __attribute__((packed));

union c2wr_nsmr_fastreg {
	struct c2wr_nsmr_fastreg_req req;
	struct c2wr_ce rep;
} __attribute__((packed));

struct c2wr_stag_invalidate_req {
	struct c2_sq_hdr sq_hdr;
	u8 stag_key;
	u8 pad[3];
	u32 stag_index;
} __attribute__((packed));

union c2wr_stag_invalidate {
	struct c2wr_stag_invalidate_req req;
	struct c2wr_ce rep;
} __attribute__((packed));

union c2wr_sqwr {
	struct c2_sq_hdr sq_hdr;
	struct c2wr_send_req send;
	struct c2wr_send_req send_se;
	struct c2wr_send_req send_inv;
	struct c2wr_send_req send_se_inv;
	struct c2wr_rdma_write_req rdma_write;
	struct c2wr_rdma_read_req rdma_read;
	struct c2wr_mw_bind_req mw_bind;
	struct c2wr_nsmr_fastreg_req nsmr_fastreg;
	struct c2wr_stag_invalidate_req stag_inv;
} __attribute__((packed));


/*
 * RQ WRs
 */
struct c2wr_rqwr {
	struct c2_rq_hdr rq_hdr;
	u8 data[0];		/* array of SGEs */
} __attribute__((packed));

union c2wr_recv {
	struct c2wr_rqwr req;
	struct c2wr_ce rep;
} __attribute__((packed));

/*
 * All AEs start with this header.  Most AEs only need to convey the
 * information in the header.  Some, like LLP connection events, need
 * more info.  The union typdef c2wr_ae_t has all the possible AEs.
 *
 * hdr.context is the user_context from the rnic_open WR.  NULL If this
 * is not affiliated with an rnic
 *
 * hdr.id is the AE identifier (eg;  CCAE_REMOTE_SHUTDOWN,
 * CCAE_LLP_CLOSE_COMPLETE)
 *
 * resource_type is one of:  C2_RES_IND_QP, C2_RES_IND_CQ, C2_RES_IND_SRQ
 *
 * user_context is the context passed down when the host created the resource.
 */
struct c2wr_ae_hdr {
	struct c2wr_hdr hdr;
	u64 user_context;	/* user context for this res. */
	u32 resource_type;	/* see enum c2_resource_indicator */
	u32 resource;		/* handle for resource */
	u32 qp_state;		/* current QP State */
} __attribute__((packed));

/*
 * After submitting the CCAE_ACTIVE_CONNECT_RESULTS message on the AEQ,
 * the adapter moves the QP into RTS state
 */
struct c2wr_ae_active_connect_results {
	struct c2wr_ae_hdr ae_hdr;
	u32 laddr;
	u32 raddr;
	u16 lport;
	u16 rport;
	u32 private_data_length;
	u8 private_data[0];	/* data is in-line in the msg. */
} __attribute__((packed));

/*
 * When connections are established by the stack (and the private data
 * MPA frame is received), the adapter will generate an event to the host.
 * The details of the connection, any private data, and the new connection
 * request handle is passed up via the CCAE_CONNECTION_REQUEST msg on the
 * AE queue:
 */
struct c2wr_ae_connection_request {
	struct c2wr_ae_hdr ae_hdr;
	u32 cr_handle;		/* connreq handle (sock ptr) */
	u32 laddr;
	u32 raddr;
	u16 lport;
	u16 rport;
	u32 private_data_length;
	u8 private_data[0];	/* data is in-line in the msg. */
} __attribute__((packed));

union c2wr_ae {
	struct c2wr_ae_hdr ae_generic;
	struct c2wr_ae_active_connect_results ae_active_connect_results;
	struct c2wr_ae_connection_request ae_connection_request;
} __attribute__((packed));

struct c2wr_init_req {
	struct c2wr_hdr hdr;
	u64 hint_count;
	u64 q0_host_shared;
	u64 q1_host_shared;
	u64 q1_host_msg_pool;
	u64 q2_host_shared;
	u64 q2_host_msg_pool;
} __attribute__((packed));

struct c2wr_init_rep {
	struct c2wr_hdr hdr;
} __attribute__((packed));

union c2wr_init {
	struct c2wr_init_req req;
	struct c2wr_init_rep rep;
} __attribute__((packed));

/*
 * For upgrading flash.
 */

struct c2wr_flash_init_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
} __attribute__((packed));

struct c2wr_flash_init_rep {
	struct c2wr_hdr hdr;
	u32 adapter_flash_buf_offset;
	u32 adapter_flash_len;
} __attribute__((packed));

union c2wr_flash_init {
	struct c2wr_flash_init_req req;
	struct c2wr_flash_init_rep rep;
} __attribute__((packed));

struct c2wr_flash_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 len;
} __attribute__((packed));

struct c2wr_flash_rep {
	struct c2wr_hdr hdr;
	u32 status;
} __attribute__((packed));

union c2wr_flash {
	struct c2wr_flash_req req;
	struct c2wr_flash_rep rep;
} __attribute__((packed));

struct c2wr_buf_alloc_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 size;
} __attribute__((packed));

struct c2wr_buf_alloc_rep {
	struct c2wr_hdr hdr;
	u32 offset;		/* 0 if mem not available */
	u32 size;		/* 0 if mem not available */
} __attribute__((packed));

union c2wr_buf_alloc {
	struct c2wr_buf_alloc_req req;
	struct c2wr_buf_alloc_rep rep;
} __attribute__((packed));

struct c2wr_buf_free_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 offset;		/* Must match value from alloc */
	u32 size;		/* Must match value from alloc */
} __attribute__((packed));

struct c2wr_buf_free_rep {
	struct c2wr_hdr hdr;
} __attribute__((packed));

union c2wr_buf_free {
	struct c2wr_buf_free_req req;
	struct c2wr_ce rep;
} __attribute__((packed));

struct c2wr_flash_write_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 offset;
	u32 size;
	u32 type;
	u32 flags;
} __attribute__((packed));

struct c2wr_flash_write_rep {
	struct c2wr_hdr hdr;
	u32 status;
} __attribute__((packed));

union c2wr_flash_write {
	struct c2wr_flash_write_req req;
	struct c2wr_flash_write_rep rep;
} __attribute__((packed));

/*
 * Messages for LLP connection setup.
 */

/*
 * Listen Request.  This allocates a listening endpoint to allow passive
 * connection setup.  Newly established LLP connections are passed up
 * via an AE.  See c2wr_ae_connection_request_t
 */
struct c2wr_ep_listen_create_req {
	struct c2wr_hdr hdr;
	u64 user_context;	/* returned in AEs. */
	u32 rnic_handle;
	u32 local_addr;		/* local addr, or 0  */
	u16 local_port;		/* 0 means "pick one" */
	u16 pad;
	u32 backlog;		/* tradional tcp listen bl */
} __attribute__((packed));

struct c2wr_ep_listen_create_rep {
	struct c2wr_hdr hdr;
	u32 ep_handle;		/* handle to new listening ep */
	u16 local_port;		/* resulting port... */
	u16 pad;
} __attribute__((packed));

union c2wr_ep_listen_create {
	struct c2wr_ep_listen_create_req req;
	struct c2wr_ep_listen_create_rep rep;
} __attribute__((packed));

struct c2wr_ep_listen_destroy_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 ep_handle;
} __attribute__((packed));

struct c2wr_ep_listen_destroy_rep {
	struct c2wr_hdr hdr;
} __attribute__((packed));

union c2wr_ep_listen_destroy {
	struct c2wr_ep_listen_destroy_req req;
	struct c2wr_ep_listen_destroy_rep rep;
} __attribute__((packed));

struct c2wr_ep_query_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 ep_handle;
} __attribute__((packed));

struct c2wr_ep_query_rep {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 local_addr;
	u32 remote_addr;
	u16 local_port;
	u16 remote_port;
} __attribute__((packed));

union c2wr_ep_query {
	struct c2wr_ep_query_req req;
	struct c2wr_ep_query_rep rep;
} __attribute__((packed));


/*
 * The host passes this down to indicate acceptance of a pending iWARP
 * connection.  The cr_handle was obtained from the CONNECTION_REQUEST
 * AE passed up by the adapter.  See c2wr_ae_connection_request_t.
 */
struct c2wr_cr_accept_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 qp_handle;		/* QP to bind to this LLP conn */
	u32 ep_handle;		/* LLP  handle to accept */
	u32 private_data_length;
	u8 private_data[0];	/* data in-line in msg. */
} __attribute__((packed));

/*
 * adapter sends reply when private data is successfully submitted to
 * the LLP.
 */
struct c2wr_cr_accept_rep {
	struct c2wr_hdr hdr;
} __attribute__((packed));

union c2wr_cr_accept {
	struct c2wr_cr_accept_req req;
	struct c2wr_cr_accept_rep rep;
} __attribute__((packed));

/*
 * The host sends this down if a given iWARP connection request was
 * rejected by the consumer.  The cr_handle was obtained from a
 * previous c2wr_ae_connection_request_t AE sent by the adapter.
 */
struct  c2wr_cr_reject_req {
	struct c2wr_hdr hdr;
	u32 rnic_handle;
	u32 ep_handle;		/* LLP handle to reject */
} __attribute__((packed));

/*
 * Dunno if this is needed, but we'll add it for now.  The adapter will
 * send the reject_reply after the LLP endpoint has been destroyed.
 */
struct  c2wr_cr_reject_rep {
	struct c2wr_hdr hdr;
} __attribute__((packed));

union c2wr_cr_reject {
	struct c2wr_cr_reject_req req;
	struct c2wr_cr_reject_rep rep;
} __attribute__((packed));

/*
 * console command.  Used to implement a debug console over the verbs
 * request and reply queues.
 */

/*
 * Console request message.  It contains:
 *	- message hdr with id = CCWR_CONSOLE
 *	- the physaddr/len of host memory to be used for the reply.
 *	- the command string.  eg:  "netstat -s" or "zoneinfo"
 */
struct c2wr_console_req {
	struct c2wr_hdr hdr;		/* id = CCWR_CONSOLE */
	u64 reply_buf;		/* pinned host buf for reply */
	u32 reply_buf_len;	/* length of reply buffer */
	u8 command[0];		/* NUL terminated ascii string */
	/* containing the command req */
} __attribute__((packed));

/*
 * flags used in the console reply.
 */
enum c2_console_flags {
	CONS_REPLY_TRUNCATED = 0x00000001	/* reply was truncated */
} __attribute__((packed));

/*
 * Console reply message.
 * hdr.result contains the c2_status_t error if the reply was _not_ generated,
 * or C2_OK if the reply was generated.
 */
struct c2wr_console_rep {
	struct c2wr_hdr hdr;		/* id = CCWR_CONSOLE */
	u32 flags;
} __attribute__((packed));

union c2wr_console {
	struct c2wr_console_req req;
	struct c2wr_console_rep rep;
} __attribute__((packed));


/*
 * Giant union with all WRs.  Makes life easier...
 */
union c2wr {
	struct c2wr_hdr hdr;
	struct c2wr_user_hdr user_hdr;
	union c2wr_rnic_open rnic_open;
	union c2wr_rnic_query rnic_query;
	union c2wr_rnic_getconfig rnic_getconfig;
	union c2wr_rnic_setconfig rnic_setconfig;
	union c2wr_rnic_close rnic_close;
	union c2wr_cq_create cq_create;
	union c2wr_cq_modify cq_modify;
	union c2wr_cq_destroy cq_destroy;
	union c2wr_pd_alloc pd_alloc;
	union c2wr_pd_dealloc pd_dealloc;
	union c2wr_srq_create srq_create;
	union c2wr_srq_destroy srq_destroy;
	union c2wr_qp_create qp_create;
	union c2wr_qp_query qp_query;
	union c2wr_qp_modify qp_modify;
	union c2wr_qp_destroy qp_destroy;
	struct c2wr_qp_connect qp_connect;
	union c2wr_nsmr_stag_alloc nsmr_stag_alloc;
	union c2wr_nsmr_register nsmr_register;
	union c2wr_nsmr_pbl nsmr_pbl;
	union c2wr_mr_query mr_query;
	union c2wr_mw_query mw_query;
	union c2wr_stag_dealloc stag_dealloc;
	union c2wr_sqwr sqwr;
	struct c2wr_rqwr rqwr;
	struct c2wr_ce ce;
	union c2wr_ae ae;
	union c2wr_init init;
	union c2wr_ep_listen_create ep_listen_create;
	union c2wr_ep_listen_destroy ep_listen_destroy;
	union c2wr_cr_accept cr_accept;
	union c2wr_cr_reject cr_reject;
	union c2wr_console console;
	union c2wr_flash_init flash_init;
	union c2wr_flash flash;
	union c2wr_buf_alloc buf_alloc;
	union c2wr_buf_free buf_free;
	union c2wr_flash_write flash_write;
} __attribute__((packed));


/*
 * Accessors for the wr fields that are packed together tightly to
 * reduce the wr message size.  The wr arguments are void* so that
 * either a struct c2wr*, a struct c2wr_hdr*, or a pointer to any of the types
 * in the struct c2wr union can be passed in.
 */
static __inline__ u8 c2_wr_get_id(void *wr)
{
	return ((struct c2wr_hdr *) wr)->id;
}
static __inline__ void c2_wr_set_id(void *wr, u8 id)
{
	((struct c2wr_hdr *) wr)->id = id;
}
static __inline__ u8 c2_wr_get_result(void *wr)
{
	return ((struct c2wr_hdr *) wr)->result;
}
static __inline__ void c2_wr_set_result(void *wr, u8 result)
{
	((struct c2wr_hdr *) wr)->result = result;
}
static __inline__ u8 c2_wr_get_flags(void *wr)
{
	return ((struct c2wr_hdr *) wr)->flags;
}
static __inline__ void c2_wr_set_flags(void *wr, u8 flags)
{
	((struct c2wr_hdr *) wr)->flags = flags;
}
static __inline__ u8 c2_wr_get_sge_count(void *wr)
{
	return ((struct c2wr_hdr *) wr)->sge_count;
}
static __inline__ void c2_wr_set_sge_count(void *wr, u8 sge_count)
{
	((struct c2wr_hdr *) wr)->sge_count = sge_count;
}
static __inline__ u32 c2_wr_get_wqe_count(void *wr)
{
	return ((struct c2wr_hdr *) wr)->wqe_count;
}
static __inline__ void c2_wr_set_wqe_count(void *wr, u32 wqe_count)
{
	((struct c2wr_hdr *) wr)->wqe_count = wqe_count;
}

#endif				/* _C2_WR_H_ */