drivers/scsi/elx/efct/efct_xport.h

   1 /* SPDX-License-Identifier: GPL-2.0 */
   2 /*
   3  * Copyright (C) 2021 Broadcom. All Rights Reserved. The term
   4  * “Broadcom” refers to Broadcom Inc. and/or its subsidiaries.
   5  */
   6
   7 #if !defined(__EFCT_XPORT_H__)
   8 #define __EFCT_XPORT_H__
   9
  10 enum efct_xport_ctrl {
  11         EFCT_XPORT_PORT_ONLINE = 1,
  12         EFCT_XPORT_PORT_OFFLINE,
  13         EFCT_XPORT_SHUTDOWN,
  14         EFCT_XPORT_POST_NODE_EVENT,
  15         EFCT_XPORT_WWNN_SET,
  16         EFCT_XPORT_WWPN_SET,
  17 };
  18
  19 enum efct_xport_status {
  20         EFCT_XPORT_PORT_STATUS,
  21         EFCT_XPORT_CONFIG_PORT_STATUS,
  22         EFCT_XPORT_LINK_SPEED,
  23         EFCT_XPORT_IS_SUPPORTED_LINK_SPEED,
  24         EFCT_XPORT_LINK_STATISTICS,
  25         EFCT_XPORT_LINK_STAT_RESET,
  26         EFCT_XPORT_IS_QUIESCED
  27 };
  28
  29 struct efct_xport_link_stats {
  30         bool            rec;
  31         bool            gec;
  32         bool            w02of;
  33         bool            w03of;
  34         bool            w04of;
  35         bool            w05of;
  36         bool            w06of;
  37         bool            w07of;
  38         bool            w08of;
  39         bool            w09of;
  40         bool            w10of;
  41         bool            w11of;
  42         bool            w12of;
  43         bool            w13of;
  44         bool            w14of;
  45         bool            w15of;
  46         bool            w16of;
  47         bool            w17of;
  48         bool            w18of;
  49         bool            w19of;
  50         bool            w20of;
  51         bool            w21of;
  52         bool            clrc;
  53         bool            clof1;
  54         u32             link_failure_error_count;
  55         u32             loss_of_sync_error_count;
  56         u32             loss_of_signal_error_count;
  57         u32             primitive_sequence_error_count;
  58         u32             invalid_transmission_word_error_count;
  59         u32             crc_error_count;
  60         u32             primitive_sequence_event_timeout_count;
  61         u32             elastic_buffer_overrun_error_count;
  62         u32             arbitration_fc_al_timeout_count;
  63         u32             advertised_receive_bufftor_to_buffer_credit;
  64         u32             current_receive_buffer_to_buffer_credit;
  65         u32             advertised_transmit_buffer_to_buffer_credit;
  66         u32             current_transmit_buffer_to_buffer_credit;
  67         u32             received_eofa_count;
  68         u32             received_eofdti_count;
  69         u32             received_eofni_count;
  70         u32             received_soff_count;
  71         u32             received_dropped_no_aer_count;
  72         u32             received_dropped_no_available_rpi_resources_count;
  73         u32             received_dropped_no_available_xri_resources_count;
  74 };
  75
  76 struct efct_xport_host_stats {
  77         bool            cc;
  78         u32             transmit_kbyte_count;
  79         u32             receive_kbyte_count;
  80         u32             transmit_frame_count;
  81         u32             receive_frame_count;
  82         u32             transmit_sequence_count;
  83         u32             receive_sequence_count;
  84         u32             total_exchanges_originator;
  85         u32             total_exchanges_responder;
  86         u32             receive_p_bsy_count;
  87         u32             receive_f_bsy_count;
  88         u32             dropped_frames_due_to_no_rq_buffer_count;
  89         u32             empty_rq_timeout_count;
  90         u32             dropped_frames_due_to_no_xri_count;
  91         u32             empty_xri_pool_count;
  92 };
  93
  94 struct efct_xport_host_statistics {
  95         struct completion               done;
  96         struct efct_xport_link_stats    link_stats;
  97         struct efct_xport_host_stats    host_stats;
  98 };
  99
 100 union efct_xport_stats_u {
 101         u32     value;
 102         struct efct_xport_host_statistics stats;
 103 };
 104
 105 struct efct_xport_fcp_stats {
 106         u64             input_bytes;
 107         u64             output_bytes;
 108         u64             input_requests;
 109         u64             output_requests;
 110         u64             control_requests;
 111 };
 112
 113 struct efct_xport {
 114         struct efct             *efct;
 115         /* wwpn requested by user for primary nport */
 116         u64                     req_wwpn;
 117         /* wwnn requested by user for primary nport */
 118         u64                     req_wwnn;
 119
 120         /* Nodes */
 121         /* number of allocated nodes */
 122         u32                     nodes_count;
 123         /* used to track how often IO pool is empty */
 124         atomic_t                io_alloc_failed_count;
 125         /* array of pointers to nodes */
 126         struct efc_node         **nodes;
 127
 128         /* Io pool and counts */
 129         /* pointer to IO pool */
 130         struct efct_io_pool     *io_pool;
 131         /* lock for io_pending_list */
 132         spinlock_t              io_pending_lock;
 133         /* list of IOs waiting for HW resources
 134          *  lock: xport->io_pending_lock
 135          *  link: efct_io_s->io_pending_link
 136          */
 137         struct list_head        io_pending_list;
 138         /* count of totals IOS allocated */
 139         atomic_t                io_total_alloc;
 140         /* count of totals IOS free'd */
 141         atomic_t                io_total_free;
 142         /* count of totals IOS that were pended */
 143         atomic_t                io_total_pending;
 144         /* count of active IOS */
 145         atomic_t                io_active_count;
 146         /* count of pending IOS */
 147         atomic_t                io_pending_count;
 148         /* non-zero if efct_scsi_check_pending is executing */
 149         atomic_t                io_pending_recursing;
 150
 151         /* Port */
 152         /* requested link state */
 153         u32                     configured_link_state;
 154
 155         /* Timer for Statistics */
 156         struct timer_list       stats_timer;
 157         union efct_xport_stats_u fc_xport_stats;
 158         struct efct_xport_fcp_stats fcp_stats;
 159 };
 160
 161 struct efct_rport_data {
 162         struct efc_node         *node;
 163 };
 164
 165 struct efct_xport *
 166 efct_xport_alloc(struct efct *efct);
 167 int
 168 efct_xport_attach(struct efct_xport *xport);
 169 int
 170 efct_xport_initialize(struct efct_xport *xport);
 171 void
 172 efct_xport_detach(struct efct_xport *xport);
 173 int
 174 efct_xport_control(struct efct_xport *xport, enum efct_xport_ctrl cmd, ...);
 175 int
 176 efct_xport_status(struct efct_xport *xport, enum efct_xport_status cmd,
 177                   union efct_xport_stats_u *result);
 178 void
 179 efct_xport_free(struct efct_xport *xport);
 180
 181 struct scsi_transport_template *efct_attach_fc_transport(void);
 182 struct scsi_transport_template *efct_attach_vport_fc_transport(void);
 183 void
 184 efct_release_fc_transport(struct scsi_transport_template *transport_template);
 185
 186 #endif /* __EFCT_XPORT_H__ */