include/net1/prio_kernel_qtype.h

   1 /* FILE : /usr/src/linux/include/net/prio_kernel_qtype.h\r
   2  *\r
   3  * This file define data structures used in kernel to run PRIO scheduler.\r
   4  */\r
   5 \r
   6 #include <net/kernel_qtype.h>\r
   7 #include <net/qmgt_red.h>               //added by Binbon\r
   8 \r
   9 \r
  10 #define MAX_NUM_OF_PRIO 1024\r
  11 //////Begin: Added by Payne For priority scheduling//////\r
  12 struct t_flow{\r
  13         Policer_Spec    p_spec; //the policer info of the queue\r
  14         Filter_Spec     f_spec; //the filter bound to the queue\r
  15         \r
  16         struct t_flow   *prev;  //the previous flow\r
  17         struct t_flow   *next;  //the next flow\r
  18         struct t_pqspec *theQueue;  //the queue to which the traffic belongs\r
  19 };\r
  20 typedef struct t_flow Flow_Spec;\r
  21 \r
  22 struct t_pqspec\r
  23 {\r
  24         Q_Stat          q_stat;         //the information of the queue\r
  25         Flow_Spec       *flow_spec;     //the flows bound to the queue\r
  26         \r
  27 \r
  28         //doubly linked list to manage ALL queues\r
  29         struct t_pqspec *prev;//the previous queue\r
  30         struct t_pqspec *next;//the next queue\r
  31         struct sk_buff_head pkt_list;   //the packet list of the queue\r
  32         \r
  33         void *ext;                      // for future extension\r
  34 };\r
  35 typedef struct t_pqspec PQ_Spec;\r
  36 \r
  37 \r
  38 //20020718 by ARGAY\r
  39 //Precedence Order Entry\r
  40 struct PreOrderEntry\r
  41 {\r
  42         Flow_Spec               *fs;\r
  43         u_int16_t               po;\r
  44         u_int8_t                enabled; //0: DISABLE_BPIPE, 1: ENABLE_BPIPE\r
  45         struct PreOrderEntry    *prev;\r
  46         struct PreOrderEntry    *next;\r
  47 };\r
  48 \r
  49 \r
  50 /* Information of a PRIO scheduler\r
  51  *\r
  52  */\r
  53 struct prio_sch_data{        \r
  54         PQ_Spec *head;          //head of queue list which contains ALL queues\r
  55                                 //created in a NIC (Let say "ALL-queue list")\r
  56         int num_of_prio;        //Max number of priorities supported\r
  57         PQ_Spec *default_q;     //for Best Effort traffic\r
  58         \r
  59         u_int32_t BW;           //bandwidth of link\r
  60                                 //NOTE that "bandwidth" may be less than\r
  61                                 //NIC's maximum capacity. If it is set\r
  62                                 //this way, mechanism of "Maximum output\r
  63                                 //rate control" will enforce the NIC to run\r
  64                                 //at speed no more faster than "bandwidth".\r
  65         u_int32_t BW_token;     //for bandwidth control (maximum output rate\r
  66                                 //control), measured in BYTES\r
  67         struct timeval last_ctl_time; //to count residual tokens of a NIC\r
  68         struct timer_list deq_timer; //to regularly wake up scheduler to send\r
  69                                      //packets out\r
  70 \r
  71         //20020718 by ARGAY\r
  72         struct PreOrderEntry *poHead;\r
  73         struct semaphore *poe_list_lock; //semaphore the precedence order list\r
  74 };\r
  75 \r
  76 //////End: Added by Payne For priority scheduling//////\r
  77 \r
  78 \r