Quelle  efct_xport.h   Sprache: C

/* SPDX-License-Identifier: GPL-2.0 */
/*
 * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
 * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
 */

#if !defined(__EFCT_XPORT_H__)
#define __EFCT_XPORT_H__

enum efct_xport_ctrl {
 EFCT_XPORT_PORT_ONLINE = 1,
 EFCT_XPORT_PORT_OFFLINE,
 EFCT_XPORT_SHUTDOWN,
 EFCT_XPORT_POST_NODE_EVENT,
 EFCT_XPORT_WWNN_SET,
 EFCT_XPORT_WWPN_SET,
};

enum efct_xport_status {
 EFCT_XPORT_PORT_STATUS,
 EFCT_XPORT_CONFIG_PORT_STATUS,
 EFCT_XPORT_LINK_SPEED,
 EFCT_XPORT_IS_SUPPORTED_LINK_SPEED,
 EFCT_XPORT_LINK_STATISTICS,
 EFCT_XPORT_LINK_STAT_RESET,
 EFCT_XPORT_IS_QUIESCED
};

struct efct_xport_link_stats {
 bool  rec;
 bool  gec;
 bool  w02of;
 bool  w03of;
 bool  w04of;
 bool  w05of;
 bool  w06of;
 bool  w07of;
 bool  w08of;
 bool  w09of;
 bool  w10of;
 bool  w11of;
 bool  w12of;
 bool  w13of;
 bool  w14of;
 bool  w15of;
 bool  w16of;
 bool  w17of;
 bool  w18of;
 bool  w19of;
 bool  w20of;
 bool  w21of;
 bool  clrc;
 bool  clof1;
 u32  link_failure_error_count;
 u32  loss_of_sync_error_count;
 u32  loss_of_signal_error_count;
 u32  primitive_sequence_error_count;
 u32  invalid_transmission_word_error_count;
 u32  crc_error_count;
 u32  primitive_sequence_event_timeout_count;
 u32  elastic_buffer_overrun_error_count;
 u32  arbitration_fc_al_timeout_count;
 u32  advertised_receive_bufftor_to_buffer_credit;
 u32  current_receive_buffer_to_buffer_credit;
 u32  advertised_transmit_buffer_to_buffer_credit;
 u32  current_transmit_buffer_to_buffer_credit;
 u32  received_eofa_count;
 u32  received_eofdti_count;
 u32  received_eofni_count;
 u32  received_soff_count;
 u32  received_dropped_no_aer_count;
 u32  received_dropped_no_available_rpi_resources_count;
 u32  received_dropped_no_available_xri_resources_count;
};

struct efct_xport_host_stats {
 bool  cc;
 u32  transmit_kbyte_count;
 u32  receive_kbyte_count;
 u32  transmit_frame_count;
 u32  receive_frame_count;
 u32  transmit_sequence_count;
 u32  receive_sequence_count;
 u32  total_exchanges_originator;
 u32  total_exchanges_responder;
 u32  receive_p_bsy_count;
 u32  receive_f_bsy_count;
 u32  dropped_frames_due_to_no_rq_buffer_count;
 u32  empty_rq_timeout_count;
 u32  dropped_frames_due_to_no_xri_count;
 u32  empty_xri_pool_count;
};

struct efct_xport_host_statistics {
 struct completion  done;
 struct efct_xport_link_stats link_stats;
 struct efct_xport_host_stats host_stats;
};

union efct_xport_stats_u {
 u32 value;
 struct efct_xport_host_statistics stats;
};

struct efct_xport_fcp_stats {
 u64  input_bytes;
 u64  output_bytes;
 u64  input_requests;
 u64  output_requests;
 u64  control_requests;
};

struct efct_xport {
 struct efct  *efct;
 /* wwpn requested by user for primary nport */
 u64   req_wwpn;
 /* wwnn requested by user for primary nport */
 u64   req_wwnn;

 /* Nodes */
 /* number of allocated nodes */
 u32   nodes_count;
 /* used to track how often IO pool is empty */
 atomic_t  io_alloc_failed_count;
 /* array of pointers to nodes */
 struct efc_node  **nodes;

 /* Io pool and counts */
 /* pointer to IO pool */
 struct efct_io_pool *io_pool;
 /* lock for io_pending_list */
 spinlock_t  io_pending_lock;
 /* list of IOs waiting for HW resources
 *  lock: xport->io_pending_lock
 *  link: efct_io_s->io_pending_link
 */
 struct list_head io_pending_list;
 /* count of totals IOS allocated */
 atomic_t  io_total_alloc;
 /* count of totals IOS free'd */
 atomic_t  io_total_free;
 /* count of totals IOS that were pended */
 atomic_t  io_total_pending;
 /* count of active IOS */
 atomic_t  io_active_count;
 /* count of pending IOS */
 atomic_t  io_pending_count;
 /* non-zero if efct_scsi_check_pending is executing */
 atomic_t  io_pending_recursing;

 /* Port */
 /* requested link state */
 u32   configured_link_state;

 /* Timer for Statistics */
 struct timer_list stats_timer;
 union efct_xport_stats_u fc_xport_stats;
 struct efct_xport_fcp_stats fcp_stats;
};

struct efct_rport_data {
 struct efc_node  *node;
};

struct efct_xport *
efct_xport_alloc(struct efct *efct);
int
efct_xport_attach(struct efct_xport *xport);
int
efct_xport_initialize(struct efct_xport *xport);
void
efct_xport_detach(struct efct_xport *xport);
int
efct_xport_control(struct efct_xport *xport, enum efct_xport_ctrl cmd, ...);
int
efct_xport_status(struct efct_xport *xport, enum efct_xport_status cmd,
    union efct_xport_stats_u *result);
void
efct_xport_free(struct efct_xport *xport);

struct scsi_transport_template *efct_attach_fc_transport(void);
struct scsi_transport_template *efct_attach_vport_fc_transport(void);
void
efct_release_fc_transport(struct scsi_transport_template *transport_template);

#endif /* __EFCT_XPORT_H__ */