drivers/scsi/bfa/include/defs/bfa_defs_qos.h

   1 /*
   2  * Copyright (c) 2005-2009 Brocade Communications Systems, Inc.
   3  * All rights reserved
   4  * www.brocade.com
   5  *
   6  * Linux driver for Brocade Fibre Channel Host Bus Adapter.
   7  *
   8  * This program is free software; you can redistribute it and/or modify it
   9  * under the terms of the GNU General Public License (GPL) Version 2 as
  10  * published by the Free Software Foundation
  11  *
  12  * This program is distributed in the hope that it will be useful, but
  13  * WITHOUT ANY WARRANTY; without even the implied warranty of
  14  * MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the GNU
  15  * General Public License for more details.
  16  */
  17
  18 #ifndef __BFA_DEFS_QOS_H__
  19 #define __BFA_DEFS_QOS_H__
  20
  21 /**
  22  * QoS states
  23  */
  24 enum bfa_qos_state {
  25         BFA_QOS_ONLINE = 1,             /*  QoS is online */
  26         BFA_QOS_OFFLINE = 2,            /*  QoS is offline */
  27 };
  28
  29
  30 /**
  31  * QoS  Priority levels.
  32  */
  33 enum bfa_qos_priority {
  34         BFA_QOS_UNKNOWN = 0,
  35         BFA_QOS_HIGH  = 1,      /*  QoS Priority Level High */
  36         BFA_QOS_MED  =  2,      /*  QoS Priority Level Medium */
  37         BFA_QOS_LOW  =  3,      /*  QoS Priority Level Low */
  38 };
  39
  40
  41 /**
  42  * QoS  bandwidth allocation for each priority level
  43  */
  44 enum bfa_qos_bw_alloc {
  45         BFA_QOS_BW_HIGH  = 60,  /*  bandwidth allocation for High */
  46         BFA_QOS_BW_MED  =  30,  /*  bandwidth allocation for Medium */
  47         BFA_QOS_BW_LOW  =  10,  /*  bandwidth allocation for Low */
  48 };
  49
  50 /**
  51  * QoS attribute returned in QoS Query
  52  */
  53 struct bfa_qos_attr_s {
  54         enum bfa_qos_state state;               /*  QoS current state */
  55         u32  total_bb_cr;               /*  Total BB Credits */
  56 };
  57
  58 /**
  59  * These fields should be displayed only from the CLI.
  60  * There will be a separate BFAL API (get_qos_vc_attr ?)
  61  * to retrieve this.
  62  *
  63  */
  64 #define  BFA_QOS_MAX_VC  16
  65
  66 struct bfa_qos_vc_info_s {
  67         u8 vc_credit;
  68         u8 borrow_credit;
  69         u8 priority;
  70         u8 resvd;
  71 };
  72
  73 struct bfa_qos_vc_attr_s {
  74         u16  total_vc_count;                    /*  Total VC Count */
  75         u16  shared_credit;
  76         u32  elp_opmode_flags;
  77         struct bfa_qos_vc_info_s vc_info[BFA_QOS_MAX_VC];  /*   as many as
  78                                                             * total_vc_count */
  79 };
  80
  81 /**
  82  * QoS statistics
  83  */
  84 struct bfa_qos_stats_s {
  85         u32     flogi_sent;             /*  QoS Flogi sent */
  86         u32     flogi_acc_recvd;        /*  QoS Flogi Acc received */
  87         u32     flogi_rjt_recvd; /*  QoS Flogi rejects received */
  88         u32     flogi_retries;          /*  QoS Flogi retries */
  89
  90         u32     elp_recvd;              /*  QoS ELP received */
  91         u32     elp_accepted;       /*  QoS ELP Accepted */
  92         u32     elp_rejected;       /*  QoS ELP rejected */
  93         u32     elp_dropped;        /*  QoS ELP dropped  */
  94
  95         u32     qos_rscn_recvd;     /*  QoS RSCN received */
  96         u32     rsvd;           /* padding for 64 bit alignment */
  97 };
  98
  99 #endif /* __BFA_DEFS_QOS_H__ */