openbcm

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client_tx.c (3668B)

      1 /*
      2  * 
      3  * This license is set out in https://raw.githubusercontent.com/Broadcom-Network-Switching-Software/OpenBCM/master/Legal/LICENSE file.
      4  * 
      5  * Copyright 2007-2019 Broadcom Inc. All rights reserved.
      6  *
      7  * File:        client_tx.c
      8  * Purpose:     Client implementation of bcm_tx* functions.
      9  * Requires:
     10  */
     11 
     12 #include <shared/bsl.h>
     13 
     14 #include <bcm/tx.h>
     15 #include <bcm/error.h>
     16 
     17 #if defined(BROADCOM_DEBUG)
     18 #include <soc/debug.h>
     19 #include <soc/cm.h>
     20 #define TX_DEBUG(stuff)         LOG_ERROR(BSL_LS_SOC_COMMON, stuff)
     21 #else
     22 #define TX_DEBUG(stuff)
     23 #endif  /* BROADCOM_DEBUG */
     24 
     25 
     26 /*
     27  * Function:
     28  *      bcm_client_tx_init
     29  * Purpose:
     30  *      Initialize BCM TX API on client
     31  * Parameters:
     32  *      unit - transmission unit
     33  * Returns:
     34  *      BCM_E_XXX
     35  * Notes:
     36  */
     37 
     38 int
     39 bcm_client_tx_init(int unit)
     40 {
     41     /* Set up TX tunnel receiver and transmitter */
     42     /* Currently this is done elsewhere */
     43     return BCM_E_NONE;
     44 }
     45 
     46 /*
     47  * Function:
     48  *      bcm_client_tx
     49  * Purpose:
     50  *     Transmit a single packet on client
     51  * Parameters:
     52  *      unit - transmission unit
     53  *      pkt - The tx packet structure
     54  *      cookie - Callback cookie when tx done
     55  * Returns:
     56  *      BCM_E_XXX
     57  * Notes:
     58  *      XGS3 devices cannot dispatch packets to multiple ports. To emulate this
     59  *      functionality, bcm_tx iterates over the requested bitmaps. The callback,
     60  *      if applicable, shall be called only once.
     61  */
     62 
     63 int
     64 bcm_client_tx(int unit, bcm_pkt_t *pkt, void *cookie)
     65 {
     66     /* Tunnel the packet to the remote CPU */
     67     bcm_cpu_tunnel_mode_t mode = BCM_CPU_TUNNEL_PACKET; /* default */
     68 
     69     if (pkt->call_back != NULL && cookie != NULL) {
     70         TX_DEBUG(("bcm_tx ERROR:  "
     71                      "Cookie non-NULL on async tunnel call\n"));
     72         return BCM_E_PARAM;
     73     }
     74 
     75     if (pkt->flags & BCM_TX_BEST_EFFORT) {
     76         mode = BCM_CPU_TUNNEL_PACKET_BEST_EFFORT;
     77     } else if (pkt->flags & BCM_TX_RELIABLE) {
     78         mode = BCM_CPU_TUNNEL_PACKET_RELIABLE;
     79     }
     80 
     81     return bcm_tx_cpu_tunnel(pkt, unit, 0, BCM_CPU_TUNNEL_F_PBMP, mode);
     82 }
     83 
     84 /*
     85  * Function:
     86  *      bcm_client_tx_array
     87  * Purpose:
     88  *      Transmit an array of packets on client
     89  * Parameters:
     90  *      unit - transmission unit
     91  *      pkt - array of pointers to packets to transmit
     92  *      count - Number of packets in list
     93  *      all_done_cb - Callback function (if non-NULL) when all pkts trx'd
     94  *      cookie - Callback cookie.
     95  * Returns:
     96  *      BCM_E_XXX
     97  * Notes:
     98  *      Can't tunnel an array to the client, so return error.
     99  */
    100 
    101 int
    102 bcm_client_tx_array(int unit, bcm_pkt_t **pkt, int count,
    103                     bcm_pkt_cb_f all_done_cb, void *cookie)
    104 {
    105     TX_DEBUG(("bcm_tx_array ERROR:  Cannot tunnel\n"));
    106     return BCM_E_PARAM;
    107 }
    108 
    109 /*
    110  * Function:
    111  *      bcm_client_tx_list
    112  * Purpose:
    113  *      Transmit a linked list of packets
    114  * Parameters:
    115  *      unit - transmission unit
    116  *      pkt - Pointer to linked list of packets
    117  *      all_done_cb - Callback function (if non-NULL) when all pkts trx'd
    118  *      cookie - Callback cookie.
    119  * Returns:
    120  *      BCM_E_XXX
    121  * Notes:
    122  *      Can't tunnel a list to the client, so return error.
    123  */
    124 
    125 int
    126 bcm_client_tx_list(int unit, bcm_pkt_t *pkt, bcm_pkt_cb_f all_done_cb,
    127                    void *cookie)
    128 {
    129     TX_DEBUG(("bcm_tx_list ERROR:  Cannot tunnel\n"));
    130     return BCM_E_PARAM;
    131 }
    132 
    133 /*
    134  * Function:
    135  *      bcm_client_tx_pkt_setup
    136  * Purpose:
    137  *      Default packet setup routine for transmit on client
    138  * Parameters:
    139  *      unit         - Unit on which being transmitted
    140  *      tx_pkt       - Packet to update
    141  * Returns:
    142  *      BCM_E_XXX
    143  * Notes:
    144  */
    145 
    146 int
    147 bcm_client_tx_pkt_setup(int unit, bcm_pkt_t *tx_pkt)
    148 {
    149     return BCM_E_NONE;
    150 }