openbcm

Git mirror of https://github.com/Broadcom-Network-Switching-Software/OpenBCM
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mcast.c (2369B)

      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:        mcast.c
      8  * Purpose:     Tracks and manages L2 Multicast tables.
      9  */
     10 
     11 #include <soc/defs.h>
     12 #if defined(BCM_BRADLEY_SUPPORT)
     13 #include <soc/drv.h>
     14 #include <soc/mem.h>
     15 
     16 #include <bcm/error.h>
     17 #include <bcm/l2.h>
     18 
     19 /*
     20  * Function:
     21  *      bcm_humv_mcast_init
     22  * Purpose:
     23  *      Initialize multicast api components
     24  * Returns:
     25  *      BCM_E_XXX on error
     26  *      number of mcast entries supported on success
     27  */
     28 
     29 int
     30 bcm_humv_mcast_init(int unit)
     31 {
     32 #ifdef BCM_WARM_BOOT_SUPPORT
     33     if (SOC_WARM_BOOT(unit)) {
     34         uint32 mc_ctrl;
     35         soc_control_t       *soc = SOC_CONTROL(unit);
     36 
     37         /* Recover the mcast size settings */
     38         SOC_IF_ERROR_RETURN
     39             (READ_MC_CONTROL_1r(unit, &mc_ctrl));
     40         soc->higig2_bcast_size = 
     41             soc_reg_field_get(unit, MC_CONTROL_1r, mc_ctrl,
     42                               HIGIG2_BC_SIZEf);
     43 
     44         SOC_IF_ERROR_RETURN
     45             (READ_MC_CONTROL_2r(unit, &mc_ctrl));
     46         soc->higig2_mcast_size = 
     47             soc_reg_field_get(unit, MC_CONTROL_2r, mc_ctrl,
     48                               HIGIG2_L2MC_SIZEf);
     49 
     50         SOC_IF_ERROR_RETURN
     51             (READ_MC_CONTROL_3r(unit, &mc_ctrl));
     52         soc->higig2_ipmc_size = 
     53             soc_reg_field_get(unit, MC_CONTROL_3r, mc_ctrl,
     54                               HIGIG2_IPMC_SIZEf);
     55 
     56         SOC_IF_ERROR_RETURN
     57             (READ_MC_CONTROL_5r(unit, &mc_ctrl));
     58         soc->mcast_size = 
     59             soc_reg_field_get(unit, MC_CONTROL_5r, mc_ctrl,
     60                               SHARED_TABLE_L2MC_SIZEf);
     61         soc->ipmc_size = 
     62             soc_reg_field_get(unit, MC_CONTROL_5r, mc_ctrl,
     63                               SHARED_TABLE_IPMC_SIZEf);
     64 
     65 
     66     }
     67 #endif /* BCM_WARM_BOOT_SUPPORT */
     68 
     69     /* Other initialization relocated to soc_misc_init */
     70     return BCM_E_NONE;
     71 }
     72 
     73 /*
     74  * Function:
     75  *      _bcm_humv_mcast_detach
     76  * Purpose:
     77  *      De-initialize multicast api components
     78  * Returns:
     79  *      BCM_E_XXX on error
     80  *      number of mcast entries supported on success
     81  */
     82 
     83 int
     84 _bcm_humv_mcast_detach(int unit)
     85 {
     86     return BCM_E_NONE;
     87 }
     88 #else /* BCM_BRADLEY_SUPPORT */
     89 int _humv_mcast_not_empty;
     90 #endif  /* BCM_BRADLEY_SUPPORT */