treewide: remove redundant IS_ERR() before error code check

[linux/fpc-iii.git] / drivers / net / ethernet / broadcom / bnx2x / bnx2x_init.h

/* bnx2x_init.h: Qlogic Everest network driver.
 *               Structures and macroes needed during the initialization.
 *
 * Copyright (c) 2007-2013 Broadcom Corporation
 * Copyright (c) 2014 QLogic Corporation
 All rights reserved
 *
 * This program is free software; you can redistribute it and/or modify
 * it under the terms of the GNU General Public License as published by
 * the Free Software Foundation.
 *
 * Maintained by: Ariel Elior <ariel.elior@qlogic.com>
 * Written by: Eliezer Tamir
 * Modified by: Vladislav Zolotarov
 */

#ifndef BNX2X_INIT_H
#define BNX2X_INIT_H

/* Init operation types and structures */
enum {
        OP_RD = 0x1,    /* read a single register */
        OP_WR,          /* write a single register */
        OP_SW,          /* copy a string to the device */
        OP_ZR,          /* clear memory */
        OP_ZP,          /* unzip then copy with DMAE */
        OP_WR_64,       /* write 64 bit pattern */
        OP_WB,          /* copy a string using DMAE */
        OP_WB_ZR,       /* Clear a string using DMAE or indirect-wr */
        /* Skip the following ops if all of the init modes don't match */
        OP_IF_MODE_OR,
        /* Skip the following ops if any of the init modes don't match */
        OP_IF_MODE_AND,
        OP_MAX
};

enum {
        STAGE_START,
        STAGE_END,
};

/* Returns the index of start or end of a specific block stage in ops array*/
#define BLOCK_OPS_IDX(block, stage, end) \
        (2*(((block)*NUM_OF_INIT_PHASES) + (stage)) + (end))


/* structs for the various opcodes */
struct raw_op {
        u32 op:8;
        u32 offset:24;
        u32 raw_data;
};

struct op_read {
        u32 op:8;
        u32 offset:24;
        u32 val;
};

struct op_write {
        u32 op:8;
        u32 offset:24;
        u32 val;
};

struct op_arr_write {
        u32 op:8;
        u32 offset:24;
#ifdef __BIG_ENDIAN
        u16 data_len;
        u16 data_off;
#else /* __LITTLE_ENDIAN */
        u16 data_off;
        u16 data_len;
#endif
};

struct op_zero {
        u32 op:8;
        u32 offset:24;
        u32 len;
};

struct op_if_mode {
        u32 op:8;
        u32 cmd_offset:24;
        u32 mode_bit_map;
};


union init_op {
        struct op_read          read;
        struct op_write         write;
        struct op_arr_write     arr_wr;
        struct op_zero          zero;
        struct raw_op           raw;
        struct op_if_mode       if_mode;
};


/* Init Phases */
enum {
        PHASE_COMMON,
        PHASE_PORT0,
        PHASE_PORT1,
        PHASE_PF0,
        PHASE_PF1,
        PHASE_PF2,
        PHASE_PF3,
        PHASE_PF4,
        PHASE_PF5,
        PHASE_PF6,
        PHASE_PF7,
        NUM_OF_INIT_PHASES
};

/* Init Modes */
enum {
        MODE_ASIC                      = 0x00000001,
        MODE_FPGA                      = 0x00000002,
        MODE_EMUL                      = 0x00000004,
        MODE_E2                        = 0x00000008,
        MODE_E3                        = 0x00000010,
        MODE_PORT2                     = 0x00000020,
        MODE_PORT4                     = 0x00000040,
        MODE_SF                        = 0x00000080,
        MODE_MF                        = 0x00000100,
        MODE_MF_SD                     = 0x00000200,
        MODE_MF_SI                     = 0x00000400,
        MODE_MF_AFEX                   = 0x00000800,
        MODE_E3_A0                     = 0x00001000,
        MODE_E3_B0                     = 0x00002000,
        MODE_COS3                      = 0x00004000,
        MODE_COS6                      = 0x00008000,
        MODE_LITTLE_ENDIAN             = 0x00010000,
        MODE_BIG_ENDIAN                = 0x00020000,
};

/* Init Blocks */
enum {
        BLOCK_ATC,
        BLOCK_BRB1,
        BLOCK_CCM,
        BLOCK_CDU,
        BLOCK_CFC,
        BLOCK_CSDM,
        BLOCK_CSEM,
        BLOCK_DBG,
        BLOCK_DMAE,
        BLOCK_DORQ,
        BLOCK_HC,
        BLOCK_IGU,
        BLOCK_MISC,
        BLOCK_NIG,
        BLOCK_PBF,
        BLOCK_PGLUE_B,
        BLOCK_PRS,
        BLOCK_PXP2,
        BLOCK_PXP,
        BLOCK_QM,
        BLOCK_SRC,
        BLOCK_TCM,
        BLOCK_TM,
        BLOCK_TSDM,
        BLOCK_TSEM,
        BLOCK_UCM,
        BLOCK_UPB,
        BLOCK_USDM,
        BLOCK_USEM,
        BLOCK_XCM,
        BLOCK_XPB,
        BLOCK_XSDM,
        BLOCK_XSEM,
        BLOCK_MISC_AEU,
        NUM_OF_INIT_BLOCKS
};

/* QM queue numbers */
#define BNX2X_ETH_Q             0
#define BNX2X_TOE_Q             3
#define BNX2X_TOE_ACK_Q         6
#define BNX2X_ISCSI_Q           9
#define BNX2X_ISCSI_ACK_Q       11
#define BNX2X_FCOE_Q            10

/* Vnics per mode */
#define BNX2X_PORT2_MODE_NUM_VNICS 4
#define BNX2X_PORT4_MODE_NUM_VNICS 2

/* COS offset for port1 in E3 B0 4port mode */
#define BNX2X_E3B0_PORT1_COS_OFFSET 3

/* QM Register addresses */
#define BNX2X_Q_VOQ_REG_ADDR(pf_q_num)\
        (QM_REG_QVOQIDX_0 + 4 * (pf_q_num))
#define BNX2X_VOQ_Q_REG_ADDR(cos, pf_q_num)\
        (QM_REG_VOQQMASK_0_LSB + 4 * ((cos) * 2 + ((pf_q_num) >> 5)))
#define BNX2X_Q_CMDQ_REG_ADDR(pf_q_num)\
        (QM_REG_BYTECRDCMDQ_0 + 4 * ((pf_q_num) >> 4))

/* extracts the QM queue number for the specified port and vnic */
#define BNX2X_PF_Q_NUM(q_num, port, vnic)\
        ((((port) << 1) | (vnic)) * 16 + (q_num))


/* Maps the specified queue to the specified COS */
static inline void bnx2x_map_q_cos(struct bnx2x *bp, u32 q_num, u32 new_cos)
{
        /* find current COS mapping */
        u32 curr_cos = REG_RD(bp, QM_REG_QVOQIDX_0 + q_num * 4);

        /* check if queue->COS mapping has changed */
        if (curr_cos != new_cos) {
                u32 num_vnics = BNX2X_PORT2_MODE_NUM_VNICS;
                u32 reg_addr, reg_bit_map, vnic;

                /* update parameters for 4port mode */
                if (INIT_MODE_FLAGS(bp) & MODE_PORT4) {
                        num_vnics = BNX2X_PORT4_MODE_NUM_VNICS;
                        if (BP_PORT(bp)) {
                                curr_cos += BNX2X_E3B0_PORT1_COS_OFFSET;
                                new_cos += BNX2X_E3B0_PORT1_COS_OFFSET;
                        }
                }

                /* change queue mapping for each VNIC */
                for (vnic = 0; vnic < num_vnics; vnic++) {
                        u32 pf_q_num =
                                BNX2X_PF_Q_NUM(q_num, BP_PORT(bp), vnic);
                        u32 q_bit_map = 1 << (pf_q_num & 0x1f);

                        /* overwrite queue->VOQ mapping */
                        REG_WR(bp, BNX2X_Q_VOQ_REG_ADDR(pf_q_num), new_cos);

                        /* clear queue bit from current COS bit map */
                        reg_addr = BNX2X_VOQ_Q_REG_ADDR(curr_cos, pf_q_num);
                        reg_bit_map = REG_RD(bp, reg_addr);
                        REG_WR(bp, reg_addr, reg_bit_map & (~q_bit_map));

                        /* set queue bit in new COS bit map */
                        reg_addr = BNX2X_VOQ_Q_REG_ADDR(new_cos, pf_q_num);
                        reg_bit_map = REG_RD(bp, reg_addr);
                        REG_WR(bp, reg_addr, reg_bit_map | q_bit_map);

                        /* set/clear queue bit in command-queue bit map
                         * (E2/E3A0 only, valid COS values are 0/1)
                         */
                        if (!(INIT_MODE_FLAGS(bp) & MODE_E3_B0)) {
                                reg_addr = BNX2X_Q_CMDQ_REG_ADDR(pf_q_num);
                                reg_bit_map = REG_RD(bp, reg_addr);
                                q_bit_map = 1 << (2 * (pf_q_num & 0xf));
                                reg_bit_map = new_cos ?
                                              (reg_bit_map | q_bit_map) :
                                              (reg_bit_map & (~q_bit_map));
                                REG_WR(bp, reg_addr, reg_bit_map);
                        }
                }
        }
}

/* Configures the QM according to the specified per-traffic-type COSes */
static inline void bnx2x_dcb_config_qm(struct bnx2x *bp, enum cos_mode mode,
                                       struct priority_cos *traffic_cos)
{
        bnx2x_map_q_cos(bp, BNX2X_FCOE_Q,
                        traffic_cos[LLFC_TRAFFIC_TYPE_FCOE].cos);
        bnx2x_map_q_cos(bp, BNX2X_ISCSI_Q,
                        traffic_cos[LLFC_TRAFFIC_TYPE_ISCSI].cos);
        bnx2x_map_q_cos(bp, BNX2X_ISCSI_ACK_Q,
                traffic_cos[LLFC_TRAFFIC_TYPE_ISCSI].cos);
        if (mode != STATIC_COS) {
                /* required only in backward compatible COS mode */
                bnx2x_map_q_cos(bp, BNX2X_ETH_Q,
                                traffic_cos[LLFC_TRAFFIC_TYPE_NW].cos);
                bnx2x_map_q_cos(bp, BNX2X_TOE_Q,
                                traffic_cos[LLFC_TRAFFIC_TYPE_NW].cos);
                bnx2x_map_q_cos(bp, BNX2X_TOE_ACK_Q,
                                traffic_cos[LLFC_TRAFFIC_TYPE_NW].cos);
        }
}


/* congestion management port init api description
 * the api works as follows:
 * the driver should pass the cmng_init_input struct, the port_init function
 * will prepare the required internal ram structure which will be passed back
 * to the driver (cmng_init) that will write it into the internal ram.
 *
 * IMPORTANT REMARKS:
 * 1. the cmng_init struct does not represent the contiguous internal ram
 *    structure. the driver should use the XSTORM_CMNG_PERPORT_VARS_OFFSET
 *    offset in order to write the port sub struct and the
 *    PFID_FROM_PORT_AND_VNIC offset for writing the vnic sub struct (in other
 *    words - don't use memcpy!).
 * 2. although the cmng_init struct is filled for the maximal vnic number
 *    possible, the driver should only write the valid vnics into the internal
 *    ram according to the appropriate port mode.
 */

/* CMNG constants, as derived from system spec calculations */

/* default MIN rate in case VNIC min rate is configured to zero- 100Mbps */
#define DEF_MIN_RATE 100

/* resolution of the rate shaping timer - 400 usec */
#define RS_PERIODIC_TIMEOUT_USEC 400

/* number of bytes in single QM arbitration cycle -
 * coefficient for calculating the fairness timer
 */
#define QM_ARB_BYTES 160000

/* resolution of Min algorithm 1:100 */
#define MIN_RES 100

/* how many bytes above threshold for
 * the minimal credit of Min algorithm
 */
#define MIN_ABOVE_THRESH 32768

/* Fairness algorithm integration time coefficient -
 * for calculating the actual Tfair
 */
#define T_FAIR_COEF ((MIN_ABOVE_THRESH + QM_ARB_BYTES) * 8 * MIN_RES)

/* Memory of fairness algorithm - 2 cycles */
#define FAIR_MEM 2
#define SAFC_TIMEOUT_USEC 52

#define SDM_TICKS 4


static inline void bnx2x_init_max(const struct cmng_init_input *input_data,
                                  u32 r_param, struct cmng_init *ram_data)
{
        u32 vnic;
        struct cmng_vnic *vdata = &ram_data->vnic;
        struct cmng_struct_per_port *pdata = &ram_data->port;
        /* rate shaping per-port variables
         * 100 micro seconds in SDM ticks = 25
         * since each tick is 4 microSeconds
         */

        pdata->rs_vars.rs_periodic_timeout =
        RS_PERIODIC_TIMEOUT_USEC / SDM_TICKS;

        /* this is the threshold below which no timer arming will occur.
         * 1.25 coefficient is for the threshold to be a little bigger
         * then the real time to compensate for timer in-accuracy
         */
        pdata->rs_vars.rs_threshold =
        (5 * RS_PERIODIC_TIMEOUT_USEC * r_param)/4;

        /* rate shaping per-vnic variables */
        for (vnic = 0; vnic < BNX2X_PORT2_MODE_NUM_VNICS; vnic++) {
                /* global vnic counter */
                vdata->vnic_max_rate[vnic].vn_counter.rate =
                input_data->vnic_max_rate[vnic];
                /* maximal Mbps for this vnic
                 * the quota in each timer period - number of bytes
                 * transmitted in this period
                 */
                vdata->vnic_max_rate[vnic].vn_counter.quota =
                        RS_PERIODIC_TIMEOUT_USEC *
                        (u32)vdata->vnic_max_rate[vnic].vn_counter.rate / 8;
        }

}

static inline void bnx2x_init_min(const struct cmng_init_input *input_data,
                                  u32 r_param, struct cmng_init *ram_data)
{
        u32 vnic, fair_periodic_timeout_usec, vnicWeightSum, tFair;
        struct cmng_vnic *vdata = &ram_data->vnic;
        struct cmng_struct_per_port *pdata = &ram_data->port;

        /* this is the resolution of the fairness timer */
        fair_periodic_timeout_usec = QM_ARB_BYTES / r_param;

        /* fairness per-port variables
         * for 10G it is 1000usec. for 1G it is 10000usec.
         */
        tFair = T_FAIR_COEF / input_data->port_rate;

        /* this is the threshold below which we won't arm the timer anymore */
        pdata->fair_vars.fair_threshold = QM_ARB_BYTES;

        /* we multiply by 1e3/8 to get bytes/msec. We don't want the credits
         * to pass a credit of the T_FAIR*FAIR_MEM (algorithm resolution)
         */
        pdata->fair_vars.upper_bound = r_param * tFair * FAIR_MEM;

        /* since each tick is 4 microSeconds */
        pdata->fair_vars.fairness_timeout =
                                fair_periodic_timeout_usec / SDM_TICKS;

        /* calculate sum of weights */
        vnicWeightSum = 0;

        for (vnic = 0; vnic < BNX2X_PORT2_MODE_NUM_VNICS; vnic++)
                vnicWeightSum += input_data->vnic_min_rate[vnic];

        /* global vnic counter */
        if (vnicWeightSum > 0) {
                /* fairness per-vnic variables */
                for (vnic = 0; vnic < BNX2X_PORT2_MODE_NUM_VNICS; vnic++) {
                        /* this is the credit for each period of the fairness
                         * algorithm - number of bytes in T_FAIR (this vnic
                         * share of the port rate)
                         */
                        vdata->vnic_min_rate[vnic].vn_credit_delta =
                                (u32)input_data->vnic_min_rate[vnic] * 100 *
                                (T_FAIR_COEF / (8 * 100 * vnicWeightSum));
                        if (vdata->vnic_min_rate[vnic].vn_credit_delta <
                            pdata->fair_vars.fair_threshold +
                            MIN_ABOVE_THRESH) {
                                vdata->vnic_min_rate[vnic].vn_credit_delta =
                                        pdata->fair_vars.fair_threshold +
                                        MIN_ABOVE_THRESH;
                        }
                }
        }
}

static inline void bnx2x_init_fw_wrr(const struct cmng_init_input *input_data,
                                     u32 r_param, struct cmng_init *ram_data)
{
        u32 vnic, cos;
        u32 cosWeightSum = 0;
        struct cmng_vnic *vdata = &ram_data->vnic;
        struct cmng_struct_per_port *pdata = &ram_data->port;

        for (cos = 0; cos < MAX_COS_NUMBER; cos++)
                cosWeightSum += input_data->cos_min_rate[cos];

        if (cosWeightSum > 0) {

                for (vnic = 0; vnic < BNX2X_PORT2_MODE_NUM_VNICS; vnic++) {
                        /* Since cos and vnic shouldn't work together the rate
                         * to divide between the coses is the port rate.
                         */
                        u32 *ccd = vdata->vnic_min_rate[vnic].cos_credit_delta;
                        for (cos = 0; cos < MAX_COS_NUMBER; cos++) {
                                /* this is the credit for each period of
                                 * the fairness algorithm - number of bytes
                                 * in T_FAIR (this cos share of the vnic rate)
                                 */
                                ccd[cos] =
                                    (u32)input_data->cos_min_rate[cos] * 100 *
                                    (T_FAIR_COEF / (8 * 100 * cosWeightSum));
                                if (ccd[cos] < pdata->fair_vars.fair_threshold
                                                + MIN_ABOVE_THRESH) {
                                        ccd[cos] =
                                            pdata->fair_vars.fair_threshold +
                                            MIN_ABOVE_THRESH;
                                }
                        }
                }
        }
}

static inline void bnx2x_init_safc(const struct cmng_init_input *input_data,
                                   struct cmng_init *ram_data)
{
        /* in microSeconds */
        ram_data->port.safc_vars.safc_timeout_usec = SAFC_TIMEOUT_USEC;
}

/* Congestion management port init */
static inline void bnx2x_init_cmng(const struct cmng_init_input *input_data,
                                   struct cmng_init *ram_data)
{
        u32 r_param;
        memset(ram_data, 0, sizeof(struct cmng_init));

        ram_data->port.flags = input_data->flags;

        /* number of bytes transmitted in a rate of 10Gbps
         * in one usec = 1.25KB.
         */
        r_param = BITS_TO_BYTES(input_data->port_rate);
        bnx2x_init_max(input_data, r_param, ram_data);
        bnx2x_init_min(input_data, r_param, ram_data);
        bnx2x_init_fw_wrr(input_data, r_param, ram_data);
        bnx2x_init_safc(input_data, ram_data);
}



/* Returns the index of start or end of a specific block stage in ops array */
#define BLOCK_OPS_IDX(block, stage, end) \
                        (2*(((block)*NUM_OF_INIT_PHASES) + (stage)) + (end))


#define INITOP_SET              0       /* set the HW directly */
#define INITOP_CLEAR            1       /* clear the HW directly */
#define INITOP_INIT             2       /* set the init-value array */

/****************************************************************************
* ILT management
****************************************************************************/
struct ilt_line {
        dma_addr_t page_mapping;
        void *page;
        u32 size;
};

struct ilt_client_info {
        u32 page_size;
        u16 start;
        u16 end;
        u16 client_num;
        u16 flags;
#define ILT_CLIENT_SKIP_INIT    0x1
#define ILT_CLIENT_SKIP_MEM     0x2
};

struct bnx2x_ilt {
        u32 start_line;
        struct ilt_line         *lines;
        struct ilt_client_info  clients[4];
#define ILT_CLIENT_CDU  0
#define ILT_CLIENT_QM   1
#define ILT_CLIENT_SRC  2
#define ILT_CLIENT_TM   3
};

/****************************************************************************
* SRC configuration
****************************************************************************/
struct src_ent {
        u8 opaque[56];
        u64 next;
};

/****************************************************************************
* Parity configuration
****************************************************************************/
#define BLOCK_PRTY_INFO(block, en_mask, m1, m1h, m2, m3) \
{ \
        block##_REG_##block##_PRTY_MASK, \
        block##_REG_##block##_PRTY_STS_CLR, \
        en_mask, {m1, m1h, m2, m3}, #block \
}

#define BLOCK_PRTY_INFO_0(block, en_mask, m1, m1h, m2, m3) \
{ \
        block##_REG_##block##_PRTY_MASK_0, \
        block##_REG_##block##_PRTY_STS_CLR_0, \
        en_mask, {m1, m1h, m2, m3}, #block"_0" \
}

#define BLOCK_PRTY_INFO_1(block, en_mask, m1, m1h, m2, m3) \
{ \
        block##_REG_##block##_PRTY_MASK_1, \
        block##_REG_##block##_PRTY_STS_CLR_1, \
        en_mask, {m1, m1h, m2, m3}, #block"_1" \
}

static const struct {
        u32 mask_addr;
        u32 sts_clr_addr;
        u32 en_mask;            /* Mask to enable parity attentions */
        struct {
                u32 e1;         /* 57710 */
                u32 e1h;        /* 57711 */
                u32 e2;         /* 57712 */
                u32 e3;         /* 578xx */
        } reg_mask;             /* Register mask (all valid bits) */
        char name[8];           /* Block's longest name is 7 characters long
                                 * (name + suffix)
                                 */
} bnx2x_blocks_parity_data[] = {
        /* bit 19 masked */
        /* REG_WR(bp, PXP_REG_PXP_PRTY_MASK, 0x80000); */
        /* bit 5,18,20-31 */
        /* REG_WR(bp, PXP2_REG_PXP2_PRTY_MASK_0, 0xfff40020); */
        /* bit 5 */
        /* REG_WR(bp, PXP2_REG_PXP2_PRTY_MASK_1, 0x20); */
        /* REG_WR(bp, HC_REG_HC_PRTY_MASK, 0x0); */
        /* REG_WR(bp, MISC_REG_MISC_PRTY_MASK, 0x0); */

        /* Block IGU, MISC, PXP and PXP2 parity errors as long as we don't
         * want to handle "system kill" flow at the moment.
         */
        BLOCK_PRTY_INFO(PXP, 0x7ffffff, 0x3ffffff, 0x3ffffff, 0x7ffffff,
                        0x7ffffff),
        BLOCK_PRTY_INFO_0(PXP2, 0xffffffff, 0xffffffff, 0xffffffff, 0xffffffff,
                          0xffffffff),
        BLOCK_PRTY_INFO_1(PXP2, 0x1ffffff, 0x7f, 0x7f, 0x7ff, 0x1ffffff),
        BLOCK_PRTY_INFO(HC, 0x7, 0x7, 0x7, 0, 0),
        BLOCK_PRTY_INFO(NIG, 0xffffffff, 0x3fffffff, 0xffffffff, 0, 0),
        BLOCK_PRTY_INFO_0(NIG,  0xffffffff, 0, 0, 0xffffffff, 0xffffffff),
        BLOCK_PRTY_INFO_1(NIG,  0xffff, 0, 0, 0xff, 0xffff),
        BLOCK_PRTY_INFO(IGU, 0x7ff, 0, 0, 0x7ff, 0x7ff),
        BLOCK_PRTY_INFO(MISC, 0x1, 0x1, 0x1, 0x1, 0x1),
        BLOCK_PRTY_INFO(QM, 0, 0x1ff, 0xfff, 0xfff, 0xfff),
        BLOCK_PRTY_INFO(ATC, 0x1f, 0, 0, 0x1f, 0x1f),
        BLOCK_PRTY_INFO(PGLUE_B, 0x3, 0, 0, 0x3, 0x3),
        BLOCK_PRTY_INFO(DORQ, 0, 0x3, 0x3, 0x3, 0x3),
        {GRCBASE_UPB + PB_REG_PB_PRTY_MASK,
                GRCBASE_UPB + PB_REG_PB_PRTY_STS_CLR, 0xf,
                {0xf, 0xf, 0xf, 0xf}, "UPB"},
        {GRCBASE_XPB + PB_REG_PB_PRTY_MASK,
                GRCBASE_XPB + PB_REG_PB_PRTY_STS_CLR, 0,
                {0xf, 0xf, 0xf, 0xf}, "XPB"},
        BLOCK_PRTY_INFO(SRC, 0x4, 0x7, 0x7, 0x7, 0x7),
        BLOCK_PRTY_INFO(CDU, 0, 0x1f, 0x1f, 0x1f, 0x1f),
        BLOCK_PRTY_INFO(CFC, 0, 0xf, 0xf, 0xf, 0x3f),
        BLOCK_PRTY_INFO(DBG, 0, 0x1, 0x1, 0x1, 0x1),
        BLOCK_PRTY_INFO(DMAE, 0, 0xf, 0xf, 0xf, 0xf),
        BLOCK_PRTY_INFO(BRB1, 0, 0xf, 0xf, 0xf, 0xf),
        BLOCK_PRTY_INFO(PRS, (1<<6), 0xff, 0xff, 0xff, 0xff),
        BLOCK_PRTY_INFO(PBF, 0, 0, 0x3ffff, 0xfffff, 0xfffffff),
        BLOCK_PRTY_INFO(TM, 0, 0, 0x7f, 0x7f, 0x7f),
        BLOCK_PRTY_INFO(TSDM, 0x18, 0x7ff, 0x7ff, 0x7ff, 0x7ff),
        BLOCK_PRTY_INFO(CSDM, 0x8, 0x7ff, 0x7ff, 0x7ff, 0x7ff),
        BLOCK_PRTY_INFO(USDM, 0x38, 0x7ff, 0x7ff, 0x7ff, 0x7ff),
        BLOCK_PRTY_INFO(XSDM, 0x8, 0x7ff, 0x7ff, 0x7ff, 0x7ff),
        BLOCK_PRTY_INFO(TCM, 0, 0, 0x7ffffff, 0x7ffffff, 0x7ffffff),
        BLOCK_PRTY_INFO(CCM, 0, 0, 0x7ffffff, 0x7ffffff, 0x7ffffff),
        BLOCK_PRTY_INFO(UCM, 0, 0, 0x7ffffff, 0x7ffffff, 0x7ffffff),
        BLOCK_PRTY_INFO(XCM, 0, 0, 0x3fffffff, 0x3fffffff, 0x3fffffff),
        BLOCK_PRTY_INFO_0(TSEM, 0, 0xffffffff, 0xffffffff, 0xffffffff,
                          0xffffffff),
        BLOCK_PRTY_INFO_1(TSEM, 0, 0x3, 0x1f, 0x3f, 0x3f),
        BLOCK_PRTY_INFO_0(USEM, 0, 0xffffffff, 0xffffffff, 0xffffffff,
                          0xffffffff),
        BLOCK_PRTY_INFO_1(USEM, 0, 0x3, 0x1f, 0x1f, 0x1f),
        BLOCK_PRTY_INFO_0(CSEM, 0, 0xffffffff, 0xffffffff, 0xffffffff,
                          0xffffffff),
        BLOCK_PRTY_INFO_1(CSEM, 0, 0x3, 0x1f, 0x1f, 0x1f),
        BLOCK_PRTY_INFO_0(XSEM, 0, 0xffffffff, 0xffffffff, 0xffffffff,
                          0xffffffff),
        BLOCK_PRTY_INFO_1(XSEM, 0, 0x3, 0x1f, 0x3f, 0x3f),
};


/* [28] MCP Latched rom_parity
 * [29] MCP Latched ump_rx_parity
 * [30] MCP Latched ump_tx_parity
 * [31] MCP Latched scpad_parity
 */
#define MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS       \
        (AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY | \
         AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY | \
         AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY)

#define MISC_AEU_ENABLE_MCP_PRTY_BITS   \
        (MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS | \
         AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY)

/* Below registers control the MCP parity attention output. When
 * MISC_AEU_ENABLE_MCP_PRTY_BITS are set - attentions are
 * enabled, when cleared - disabled.
 */
static const struct {
        u32 addr;
        u32 bits;
} mcp_attn_ctl_regs[] = {
        { MISC_REG_AEU_ENABLE4_FUNC_0_OUT_0,
                MISC_AEU_ENABLE_MCP_PRTY_BITS },
        { MISC_REG_AEU_ENABLE4_NIG_0,
                MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
        { MISC_REG_AEU_ENABLE4_PXP_0,
                MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
        { MISC_REG_AEU_ENABLE4_FUNC_1_OUT_0,
                MISC_AEU_ENABLE_MCP_PRTY_BITS },
        { MISC_REG_AEU_ENABLE4_NIG_1,
                MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS },
        { MISC_REG_AEU_ENABLE4_PXP_1,
                MISC_AEU_ENABLE_MCP_PRTY_SUB_BITS }
};

static inline void bnx2x_set_mcp_parity(struct bnx2x *bp, u8 enable)
{
        int i;
        u32 reg_val;

        for (i = 0; i < ARRAY_SIZE(mcp_attn_ctl_regs); i++) {
                reg_val = REG_RD(bp, mcp_attn_ctl_regs[i].addr);

                if (enable)
                        reg_val |= mcp_attn_ctl_regs[i].bits;
                else
                        reg_val &= ~mcp_attn_ctl_regs[i].bits;

                REG_WR(bp, mcp_attn_ctl_regs[i].addr, reg_val);
        }
}

static inline u32 bnx2x_parity_reg_mask(struct bnx2x *bp, int idx)
{
        if (CHIP_IS_E1(bp))
                return bnx2x_blocks_parity_data[idx].reg_mask.e1;
        else if (CHIP_IS_E1H(bp))
                return bnx2x_blocks_parity_data[idx].reg_mask.e1h;
        else if (CHIP_IS_E2(bp))
                return bnx2x_blocks_parity_data[idx].reg_mask.e2;
        else /* CHIP_IS_E3 */
                return bnx2x_blocks_parity_data[idx].reg_mask.e3;
}

static inline void bnx2x_disable_blocks_parity(struct bnx2x *bp)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(bnx2x_blocks_parity_data); i++) {
                u32 dis_mask = bnx2x_parity_reg_mask(bp, i);

                if (dis_mask) {
                        REG_WR(bp, bnx2x_blocks_parity_data[i].mask_addr,
                               dis_mask);
                        DP(NETIF_MSG_HW, "Setting parity mask "
                                                 "for %s to\t\t0x%x\n",
                                    bnx2x_blocks_parity_data[i].name, dis_mask);
                }
        }

        /* Disable MCP parity attentions */
        bnx2x_set_mcp_parity(bp, false);
}

/* Clear the parity error status registers. */
static inline void bnx2x_clear_blocks_parity(struct bnx2x *bp)
{
        int i;
        u32 reg_val, mcp_aeu_bits =
                AEU_INPUTS_ATTN_BITS_MCP_LATCHED_ROM_PARITY |
                AEU_INPUTS_ATTN_BITS_MCP_LATCHED_SCPAD_PARITY |
                AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_RX_PARITY |
                AEU_INPUTS_ATTN_BITS_MCP_LATCHED_UMP_TX_PARITY;

        /* Clear SEM_FAST parities */
        REG_WR(bp, XSEM_REG_FAST_MEMORY + SEM_FAST_REG_PARITY_RST, 0x1);
        REG_WR(bp, TSEM_REG_FAST_MEMORY + SEM_FAST_REG_PARITY_RST, 0x1);
        REG_WR(bp, USEM_REG_FAST_MEMORY + SEM_FAST_REG_PARITY_RST, 0x1);
        REG_WR(bp, CSEM_REG_FAST_MEMORY + SEM_FAST_REG_PARITY_RST, 0x1);

        for (i = 0; i < ARRAY_SIZE(bnx2x_blocks_parity_data); i++) {
                u32 reg_mask = bnx2x_parity_reg_mask(bp, i);

                if (reg_mask) {
                        reg_val = REG_RD(bp, bnx2x_blocks_parity_data[i].
                                         sts_clr_addr);
                        if (reg_val & reg_mask)
                                DP(NETIF_MSG_HW,
                                            "Parity errors in %s: 0x%x\n",
                                            bnx2x_blocks_parity_data[i].name,
                                            reg_val & reg_mask);
                }
        }

        /* Check if there were parity attentions in MCP */
        reg_val = REG_RD(bp, MISC_REG_AEU_AFTER_INVERT_4_MCP);
        if (reg_val & mcp_aeu_bits)
                DP(NETIF_MSG_HW, "Parity error in MCP: 0x%x\n",
                   reg_val & mcp_aeu_bits);

        /* Clear parity attentions in MCP:
         * [7]  clears Latched rom_parity
         * [8]  clears Latched ump_rx_parity
         * [9]  clears Latched ump_tx_parity
         * [10] clears Latched scpad_parity (both ports)
         */
        REG_WR(bp, MISC_REG_AEU_CLR_LATCH_SIGNAL, 0x780);
}

static inline void bnx2x_enable_blocks_parity(struct bnx2x *bp)
{
        int i;

        for (i = 0; i < ARRAY_SIZE(bnx2x_blocks_parity_data); i++) {
                u32 reg_mask = bnx2x_parity_reg_mask(bp, i);

                if (reg_mask)
                        REG_WR(bp, bnx2x_blocks_parity_data[i].mask_addr,
                                bnx2x_blocks_parity_data[i].en_mask & reg_mask);
        }

        /* Enable MCP parity attentions */
        bnx2x_set_mcp_parity(bp, true);
}


#endif /* BNX2X_INIT_H */