xref: /freebsd-11-stable/sys/contrib/ncsw/Peripherals/BM/bm.h

/******************************************************************************

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 All rights reserved.

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 and its use is subject to the NetComm Device Drivers EULA.
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 or without modification, are permitted provided that the following
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     * Redistributions of source code must retain the above copyright
       notice, this list of conditions and the following disclaimer.
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       documentation and/or other materials provided with the distribution.
     * Neither the name of Freescale Semiconductor nor the
       names of its contributors may be used to endorse or promote products
       derived from this software without specific prior written permission.

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 **************************************************************************/
/******************************************************************************
 @File          bm.h

 @Description   BM header
*//***************************************************************************/
#ifndef __BM_H
#define __BM_H

#include "bm_ext.h"
#include "mm_ext.h"

#include "bman_private.h"
#include "bm_ipc.h"


#define __ERR_MODULE__  MODULE_BM

#define BM_NUM_OF_POOLS             64
#define BM_NUM_OF_PM                8

/**************************************************************************//**
 @Description       Exceptions
*//***************************************************************************/
#define BM_EX_INVALID_COMMAND       0x00000010
#define BM_EX_FBPR_THRESHOLD        0x00000008
#define BM_EX_MULTI_ECC             0x00000004
#define BM_EX_SINGLE_ECC            0x00000002
#define BM_EX_POOLS_AVAIL_STATE     0x00000001

#define GET_EXCEPTION_FLAG(bitMask, exception)                          \
switch(exception){                                                      \
    case e_BM_EX_INVALID_COMMAND:                                       \
        bitMask = BM_EX_INVALID_COMMAND; break;                         \
    case e_BM_EX_FBPR_THRESHOLD:                                        \
        bitMask = BM_EX_FBPR_THRESHOLD; break;                          \
    case e_BM_EX_SINGLE_ECC:                                            \
        bitMask = BM_EX_SINGLE_ECC; break;                              \
    case e_BM_EX_MULTI_ECC:                                             \
        bitMask = BM_EX_MULTI_ECC; break;                               \
    default: bitMask = 0;break;                                         \
}

/**************************************************************************//**
 @Description       defaults
*//***************************************************************************/
/* BM defaults */
#define DEFAULT_exceptions                  (BM_EX_INVALID_COMMAND      |\
                                            BM_EX_FBPR_THRESHOLD        |\
                                            BM_EX_MULTI_ECC             |\
                                            BM_EX_SINGLE_ECC            )

#define DEFAULT_fbprThreshold               0
/* BM-Portal defaults */
#define DEFAULT_memAttr                     MEMORY_ATTR_CACHEABLE

/* BM-Pool defaults */
#define DEFAULT_dynamicBpid                 TRUE
#define DEFAULT_useDepletion                FALSE
#define DEFAULT_useStockpile                FALSE
#define DEFAULT_numOfBufsPerCmd             8

/**************************************************************************//**
 @Description       Memory Mapped Registers
*//***************************************************************************/

#if defined(__MWERKS__) && !defined(__GNUC__)
#pragma pack(push,1)
#endif /* defined(__MWERKS__) && ... */
#define MEM_MAP_START

typedef _Packed struct
{
    /* BMan Buffer Pool Configuration & Status Registers */
    volatile uint32_t   swdet[BM_NUM_OF_POOLS];     /**< S/W Portal depletion entry threshold */
    volatile uint32_t   hwdet[BM_NUM_OF_POOLS];     /**< H/W Portal depletion entry threshold */
    volatile uint32_t   swdxt[BM_NUM_OF_POOLS];     /**< S/W Portal depletion exit threshold */
    volatile uint32_t   hwdxt[BM_NUM_OF_POOLS];     /**< H/W Portal depletion exit threshold */
    volatile uint32_t   sdcnt[BM_NUM_OF_POOLS];     /**< S/W Portal depletion count */
    volatile uint32_t   hdcnt[BM_NUM_OF_POOLS];     /**< H/W Portal depletion count */
    volatile uint32_t   content[BM_NUM_OF_POOLS];   /**< Snapshot of buffer count in Pool */
    volatile uint32_t   hdptr[BM_NUM_OF_POOLS];     /**< Head Pointer for Pool's FBPR list. */

    /* Free Buffer Proxy Record (FBPR) Manager Query Registers */
    volatile uint32_t   fbpr_fpc;                   /**< FBPR Free Pool Count */
    volatile uint32_t   fbpr_fp_lwit;               /**< FBPR Free Pool Low Watermark Interrupt Threshold  */
    volatile uint8_t    res1[248];                  /**< reserved */

    /* Performance Monitor (PM) Configuration Register */
    volatile uint32_t   cmd_pm_cfg[BM_NUM_OF_PM];   /**< BMan Command Performance Monitor configuration registers. */
    volatile uint32_t   fl_pm_cfg[BM_NUM_OF_PM];    /**< BMan Free List Performance Monitor configuration registers */
    volatile uint8_t    res2[192];                  /**< reserved */

    /* BMan Error Capture Registers */
    volatile uint32_t   ecsr;                       /**< BMan Error Capture Status Register */
    volatile uint32_t   ecir;                       /**< BMan Error Capture Information Register */
    volatile uint32_t   eadr;                       /**< BMan Error Capture Address Register */
    volatile uint8_t    res3[4];                    /**< reserved */
    volatile uint32_t   edata[8];                   /**< BMan ECC Error Data Register */
    volatile uint32_t   sbet;                       /**< BMan Single Bit ECC Error Threshold Register */
    volatile uint32_t   efcr;                       /**< BMan Error Fetch Capture Register */
    volatile uint32_t   efar;                       /**< BMan Error Fetch Address Register */
    volatile uint8_t    res4[68];                   /**< reserved */
    volatile uint32_t   sbec0;                      /**< BMan Single Bit ECC Error Count 0 Register */
    volatile uint32_t   sbec1;                      /**< BMan Single Bit ECC Error Count 1 Register */
    volatile uint8_t    res5[368];                  /**< reserved */

    /* BMan ID/Revision Registers */
    volatile uint32_t   ip_rev_1;                   /**< BMan IP Block Revision 1 register */
    volatile uint32_t   ip_rev_2;                   /**< BMan IP Block Revision 2 register */

    /* CoreNet Initiator Interface Memory Window Configuration Registers */
    volatile uint32_t   fbpr_bare;                  /**< Data Structure Extended Base Address Register */
    volatile uint32_t   fbpr_bar;                   /**< Data Structure Base Address Register */
    volatile uint8_t    res6[8];                    /**< reserved */
    volatile uint32_t   fbpr_ar;                    /**< Data Structure Attributes Register */
    volatile uint8_t    res7[240];                  /**< reserved */
    volatile uint32_t   srcidr;                     /**< BMan Source ID Register */
    volatile uint32_t   liodnr;                     /**< BMan Logical I/O Device Number Register */
    volatile uint8_t    res8[244];                  /**< reserved */

    /* BMan Interrupt and Error Registers */
    volatile uint32_t   err_isr;                    /**< BMan Error Interrupt Status Register */
    volatile uint32_t   err_ier;                    /**< BMan Error Interrupt Enable Register */
    volatile uint32_t   err_isdr;                   /**< BMan Error Interrupt Status Disable Register */
    volatile uint32_t   err_iir;                    /**< BMan Error Interrupt Inhibit Register */
    volatile uint32_t   err_ifr;                    /**< BMan Error Interrupt Force Register */
} _PackedType t_BmRegs;

#define MEM_MAP_END
#if defined(__MWERKS__) && !defined(__GNUC__)
#pragma pack(pop)
#endif /* defined(__MWERKS__) && ... */

/**************************************************************************//**
 @Description       General defines
*//***************************************************************************/
#define MODULE_NAME_SIZE            30

#define FBPR_ENTRY_SIZE             64 /* 64 bytes */

/* Compilation constants */
#define RCR_THRESH      2    /* reread h/w CI when running out of space */
#define RCR_ITHRESH     4    /* if RCR congests, interrupt threshold */

/* Lock/unlock portals, subject to "UNLOCKED" flag */
#define NCSW_PLOCK(p) ((t_BmPortal*)(p))->irq_flags = XX_DisableAllIntr()
#define PUNLOCK(p) XX_RestoreAllIntr(((t_BmPortal*)(p))->irq_flags)

#define BM_RCR_RING         0
#define BM_NUM_OF_RINGS     1

/**************************************************************************//**
 @Description       Register defines
*//***************************************************************************/

/* masks */
#define REV1_MAJOR_MASK             0x0000FF00
#define REV1_MINOR_MASK             0x000000FF

#define REV2_INTEG_MASK             0x00FF0000
#define REV2_ERR_MASK               0x0000FF00
#define REV2_CFG_MASK               0x000000FF

#define AR_PRIORITY                 0x40000000
#define AR_SIZE_MASK                0x0000003f

/* shifts */
#define REV1_MAJOR_SHIFT            8
#define REV1_MINOR_SHIFT            0

#define REV2_INTEG_SHIFT            16
#define REV2_ERR_SHIFT              8
#define REV2_CFG_SHIFT              0

#define AR_SIZE_SHIFT               0

typedef uint8_t bmRingType_t;
typedef uint8_t (t_BmUpdateCb)(struct bm_portal *p_BmPortalLow);
typedef void    (t_BmPrefetchCb)(struct bm_portal *p_BmPortalLow);
typedef void    (t_BmCommitCb)(struct bm_portal *p_BmPortalLow, uint8_t myverb);

typedef struct {
    bool                        useStockpile;       /**<  */
    bool                        dynamicBpid;        /**< boolean indicates use of dynamic Bpid */
    bool                        useDepletion;       /**< boolean indicates use of depletion */
    uint32_t                    depletionThresholds[MAX_DEPLETION_THRESHOLDS];      /**< depletion-entry/exit thresholds, if useThresholds is set. NB:
                                                         this is only allowed if useThresholds is used and
                                                         when run in the control plane (which controls Bman CCSR) */
} t_BmPoolDriverParams;

typedef struct BmPool {
    uint8_t                     bpid;           /**< index of the buffer pool to encapsulate (0-63) */
    t_Handle                    h_Bm;
    t_Handle                    h_BmPortal;
    bool                        shadowMode;
    uint32_t                    numOfBuffers;   /**< Number of buffers use by this pool */
    t_BufferPoolInfo            bufferPoolInfo; /**< Data buffers pool information */
    uint32_t                    flags;          /**< bit-mask of BMAN_POOL_FLAG_*** options */
    t_Handle                    h_App;          /**< opaque user value passed as a parameter to 'cb' */
    t_BmDepletionCallback       *f_Depletion;   /**< depletion-entry/exit callback, if BMAN_POOL_FLAG_DEPLETION is set */
    uint32_t                    swDepletionCount;
    uint32_t                    hwDepletionCount;
    /* stockpile state - NULL unless BMAN_POOL_FLAG_STOCKPILE is set */
    struct bm_buffer            *sp;
    uint16_t                    spFill;
    uint8_t                     spBufsCmd;
    uint16_t                    spMaxBufs;
    uint16_t                    spMinBufs;
    bool                        noBuffCtxt;

    t_BmPoolDriverParams        *p_BmPoolDriverParams;
} t_BmPool;

typedef struct {
    t_BmUpdateCb            *f_BmUpdateCb;
    t_BmPrefetchCb          *f_BmPrefetchCb;
    t_BmCommitCb            *f_BmCommitCb;
} t_BmPortalCallbacks;

typedef struct {
    uint32_t                hwExtStructsMemAttr;
    struct bman_depletion   mask;
} t_BmPortalDriverParams;

typedef struct {
    t_Handle                h_Bm;
    struct bm_portal        *p_BmPortalLow;
    t_BmPortalCallbacks     cbs[BM_NUM_OF_RINGS];
    int                     irq;
    int                     cpu; /* This is used for any "core-affine" portals, ie. default portals
                                  * associated to the corresponding cpu. -1 implies that there is no core
                                  * affinity configured. */
    struct bman_depletion   pools[2];   /**< 2-element array. pools[0] is mask, pools[1] is snapshot. */
    uint32_t                flags;        /**< BMAN_PORTAL_FLAG_*** - static, caller-provided */
    uint32_t                irq_flags;
    int                     thresh_set;
    uint32_t                slowpoll;
    uint32_t                rcrProd;   /**< The wrap-around rcr_[prod|cons] counters are used to support BMAN_RELEASE_FLAG_WAIT_SYNC. */
    uint32_t                rcrCons;
    /**< 64-entry hash-table of pool objects that are tracking depletion
     * entry/exit (ie. BMAN_POOL_FLAG_DEPLETION). This isn't fast-path, so
     * we're not fussy about cache-misses and so forth - whereas the above
     * members should all fit in one cacheline.
     * BTW, with BM_MAX_NUM_OF_POOLS entries in the hash table and BM_MAX_NUM_OF_POOLS buffer pools to track,
     * you'll never guess the hash-function ... */
    t_BmPool                *depletionPoolsTable[BM_MAX_NUM_OF_POOLS];
    t_BmPortalDriverParams  *p_BmPortalDriverParams;
} t_BmPortal;

typedef struct {
    uint8_t                     partBpidBase;
    uint8_t                     partNumOfPools;
    uint32_t                    totalNumOfBuffers;      /**< total number of buffers */
    uint32_t                    fbprMemPartitionId;
    uint32_t                    fbprThreshold;
    uint16_t                    liodn;
} t_BmDriverParams;

typedef struct {
    uint8_t                     guestId;
    t_Handle                    h_BpidMm;
    t_Handle                    h_SpinLock;
    t_Handle                    h_Portals[DPAA_MAX_NUM_OF_SW_PORTALS];
    t_Handle                    h_Session;
    char                        moduleName[MODULE_NAME_SIZE];
    t_BmRegs                    *p_BmRegs;
    void                        *p_FbprBase;
    uint32_t                    exceptions;
    t_BmExceptionsCallback      *f_Exception;
    t_Handle                    h_App;
    int                         errIrq;                 /**< error interrupt line; NO_IRQ if interrupts not used */
    t_BmDriverParams            *p_BmDriverParams;
} t_Bm;

static __inline__ void BmSetPortalHandle(t_Handle h_Bm, t_Handle h_Portal, e_DpaaSwPortal portalId)
{
    ASSERT_COND(!((t_Bm*)h_Bm)->h_Portals[portalId] || !h_Portal);
    ((t_Bm*)h_Bm)->h_Portals[portalId] = h_Portal;
}

static __inline__ t_Handle BmGetPortalHandle(t_Handle h_Bm)
{
    t_Bm *p_Bm = (t_Bm*)h_Bm;
    ASSERT_COND(p_Bm);
    return p_Bm->h_Portals[CORE_GetId()];
}

static __inline__ uint8_t BmUpdate(t_BmPortal *p_BmPortal, bmRingType_t type)
{
    return p_BmPortal->cbs[type].f_BmUpdateCb(p_BmPortal->p_BmPortalLow);
}

static __inline__ void BmPrefetch(t_BmPortal *p_BmPortal, bmRingType_t type)
{
    if (p_BmPortal->cbs[type].f_BmPrefetchCb)
        p_BmPortal->cbs[type].f_BmPrefetchCb(p_BmPortal->p_BmPortalLow);
}

static __inline__ void BmCommit(t_BmPortal *p_BmPortal, bmRingType_t type, uint8_t myverb)
{
    p_BmPortal->cbs[type].f_BmCommitCb(p_BmPortal->p_BmPortalLow, myverb);
}

static __inline__ uint32_t BmBpidGet(t_Bm *p_Bm, bool force, uint32_t base)
{
    uint64_t ans, size = 1;
    uint32_t alignment = 1;

    if (force)
    {
        if (MM_InRange(p_Bm->h_BpidMm, (uint64_t)base))
        {
            ans = MM_GetForce(p_Bm->h_BpidMm,
                              base,
                              (int)size,
                              "BM BPID MEM");
            ans = base;
        }
        else if (p_Bm->h_Session)
        {
            t_BmIpcMsg              msg;
            t_BmIpcReply            reply;
            uint32_t                replyLength;
            t_BmIpcBpidParams       ipcBpid;
            t_Error                 errCode = E_OK;

            memset(&msg, 0, sizeof(t_BmIpcMsg));
            memset(&reply, 0, sizeof(t_BmIpcReply));
            ipcBpid.bpid        = (uint8_t)base;
            msg.msgId           = BM_FORCE_BPID;
            memcpy(msg.msgBody, &ipcBpid, sizeof(t_BmIpcBpidParams));
            replyLength = sizeof(uint32_t) + sizeof(uint32_t);
            if ((errCode = XX_IpcSendMessage(p_Bm->h_Session,
                                             (uint8_t*)&msg,
                                             sizeof(msg.msgId) + sizeof(t_BmIpcBpidParams),
                                             (uint8_t*)&reply,
                                             &replyLength,
                                             NULL,
                                             NULL)) != E_OK)
            {
                REPORT_ERROR(MAJOR, errCode, NO_MSG);
                return (uint32_t)ILLEGAL_BASE;
            }
            if (replyLength != (sizeof(uint32_t) + sizeof(uint32_t)))
            {
                REPORT_ERROR(MAJOR, E_INVALID_VALUE, ("IPC reply length mismatch"));
                return (uint32_t)ILLEGAL_BASE;
            }
            memcpy((uint8_t*)&ans, reply.replyBody, sizeof(uint32_t));
        }
        else
        {
            DBG(WARNING, ("No Ipc - can't validate bpid."));
            ans = base;
        }
    }
    else
        ans = MM_Get(p_Bm->h_BpidMm,
                     size,
                     alignment,
                     "BM BPID MEM");
    return (uint32_t)ans;
}

static __inline__ t_Error BmBpidPut(t_Bm *p_Bm, uint32_t base)
{
    if (MM_InRange(p_Bm->h_BpidMm, (uint64_t)base))
    {
        if (MM_Put(p_Bm->h_BpidMm, (uint64_t)base) != base)
            return E_OK;
        else
            return ERROR_CODE(E_NOT_FOUND);
    }
    else if (p_Bm->h_Session)
    {
        t_BmIpcMsg              msg;
        t_BmIpcBpidParams       ipcBpid;
        t_Error                 errCode = E_OK;

        memset(&msg, 0, sizeof(t_BmIpcMsg));
        ipcBpid.bpid        = (uint8_t)base;
        msg.msgId           = BM_PUT_BPID;
        memcpy(msg.msgBody, &ipcBpid, sizeof(t_BmIpcBpidParams));
        if ((errCode = XX_IpcSendMessage(p_Bm->h_Session,
                                         (uint8_t*)&msg,
                                         sizeof(msg.msgId) + sizeof(t_BmIpcBpidParams),
                                         NULL,
                                         NULL,
                                         NULL,
                                         NULL)) != E_OK)
            RETURN_ERROR(MAJOR, errCode, NO_MSG);
    }
    else
        DBG(WARNING, ("No Ipc - can't validate bpid."));
    return E_OK;
}

/****************************************/
/*       Inter-Module functions        */
/****************************************/
typedef enum e_BmInterModuleCounters {
    e_BM_IM_COUNTERS_FBPR = 0,
    e_BM_IM_COUNTERS_POOL_CONTENT,
    e_BM_IM_COUNTERS_POOL_SW_DEPLETION,
    e_BM_IM_COUNTERS_POOL_HW_DEPLETION
} e_BmInterModuleCounters;


t_Error BmSetPoolThresholds(t_Handle h_Bm, uint8_t bpid, const uint32_t *thresholds);
t_Error BmUnSetPoolThresholds(t_Handle h_Bm, uint8_t bpid);
uint8_t BmPortalAcquire(t_Handle h_BmPortal, uint8_t bpid, struct bm_buffer *bufs, uint8_t num);
t_Error BmPortalRelease(t_Handle h_BmPortal, uint8_t bpid, struct bm_buffer *bufs, uint8_t num, uint32_t flags);
t_Error BmPortalQuery(t_Handle h_BmPortal, struct bman_depletion *p_Pools, bool depletion);
uint32_t BmGetCounter(t_Handle h_Bm, e_BmInterModuleCounters counter, uint8_t bpid);
t_Error BmGetRevision(t_Handle h_Bm, t_BmRevisionInfo *p_BmRevisionInfo);


#endif /* __BM_H */