/*
 *  Copyright (C) 2017 Chelsio Communications.  All rights reserved.
 *
 *  This program is free software; you can redistribute it and/or modify it
 *  under the terms and conditions of the GNU General Public License,
 *  version 2, as published by the Free Software Foundation.
 *
 *  This program is distributed in the hope it will be useful, but WITHOUT
 *  ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
 *  FITNESS FOR A PARTICULAR PURPOSE.  See the GNU General Public License for
 *  more details.
 *
 *  The full GNU General Public License is included in this distribution in
 *  the file called "COPYING".
 *
 */

#include <linux/sort.h>

#include "t4_regs.h"
#include "cxgb4.h"
#include "cxgb4_cudbg.h"
#include "cudbg_if.h"
#include "cudbg_lib_common.h"
#include "cudbg_entity.h"
#include "cudbg_lib.h"
#include "cudbg_zlib.h"

static int cudbg_do_compression(struct cudbg_init *pdbg_init,
                                struct cudbg_buffer *pin_buff,
                                struct cudbg_buffer *dbg_buff)
{
        struct cudbg_buffer temp_in_buff = { 0 };
        int bytes_left, bytes_read, bytes;
        u32 offset = dbg_buff->offset;
        int rc;

        temp_in_buff.offset = pin_buff->offset;
        temp_in_buff.data = pin_buff->data;
        temp_in_buff.size = pin_buff->size;

        bytes_left = pin_buff->size;
        bytes_read = 0;
        while (bytes_left > 0) {
                /* Do compression in smaller chunks */
                bytes = min_t(unsigned long, bytes_left,
                              (unsigned long)CUDBG_CHUNK_SIZE);
                temp_in_buff.data = (char *)pin_buff->data + bytes_read;
                temp_in_buff.size = bytes;
                rc = cudbg_compress_buff(pdbg_init, &temp_in_buff, dbg_buff);
                if (rc)
                        return rc;
                bytes_left -= bytes;
                bytes_read += bytes;
        }

        pin_buff->size = dbg_buff->offset - offset;
        return 0;
}

static int cudbg_write_and_release_buff(struct cudbg_init *pdbg_init,
                                        struct cudbg_buffer *pin_buff,
                                        struct cudbg_buffer *dbg_buff)
{
        int rc = 0;

        if (pdbg_init->compress_type == CUDBG_COMPRESSION_NONE) {
                cudbg_update_buff(pin_buff, dbg_buff);
        } else {
                rc = cudbg_do_compression(pdbg_init, pin_buff, dbg_buff);
                if (rc)
                        goto out;
        }

out:
        cudbg_put_buff(pdbg_init, pin_buff);
        return rc;
}

static int is_fw_attached(struct cudbg_init *pdbg_init)
{
        struct adapter *padap = pdbg_init->adap;

        if (!(padap->flags & FW_OK) || padap->use_bd)
                return 0;

        return 1;
}

/* This function will add additional padding bytes into debug_buffer to make it
 * 4 byte aligned.
 */
void cudbg_align_debug_buffer(struct cudbg_buffer *dbg_buff,
                              struct cudbg_entity_hdr *entity_hdr)
{
        u8 zero_buf[4] = {0};
        u8 padding, remain;

        remain = (dbg_buff->offset - entity_hdr->start_offset) % 4;
        padding = 4 - remain;
        if (remain) {
                memcpy(((u8 *)dbg_buff->data) + dbg_buff->offset, &zero_buf,
                       padding);
                dbg_buff->offset += padding;
                entity_hdr->num_pad = padding;
        }
        entity_hdr->size = dbg_buff->offset - entity_hdr->start_offset;
}

struct cudbg_entity_hdr *cudbg_get_entity_hdr(void *outbuf, int i)
{
        struct cudbg_hdr *cudbg_hdr = (struct cudbg_hdr *)outbuf;

        return (struct cudbg_entity_hdr *)
               ((char *)outbuf + cudbg_hdr->hdr_len +
                (sizeof(struct cudbg_entity_hdr) * (i - 1)));
}

static int cudbg_read_vpd_reg(struct adapter *padap, u32 addr, u32 len,
                              void *dest)
{
        int vaddr, rc;

        vaddr = t4_eeprom_ptov(addr, padap->pf, EEPROMPFSIZE);
        if (vaddr < 0)
                return vaddr;

        rc = pci_read_vpd(padap->pdev, vaddr, len, dest);
        if (rc < 0)
                return rc;

        return 0;
}

static int cudbg_mem_desc_cmp(const void *a, const void *b)
{
        return ((const struct cudbg_mem_desc *)a)->base -
               ((const struct cudbg_mem_desc *)b)->base;
}

int cudbg_fill_meminfo(struct adapter *padap,
                       struct cudbg_meminfo *meminfo_buff)
{
        struct cudbg_mem_desc *md;
        u32 lo, hi, used, alloc;
        int n, i;

        memset(meminfo_buff->avail, 0,
               ARRAY_SIZE(meminfo_buff->avail) *
               sizeof(struct cudbg_mem_desc));
        memset(meminfo_buff->mem, 0,
               (ARRAY_SIZE(cudbg_region) + 3) * sizeof(struct cudbg_mem_desc));
        md  = meminfo_buff->mem;

        for (i = 0; i < ARRAY_SIZE(meminfo_buff->mem); i++) {
                meminfo_buff->mem[i].limit = 0;
                meminfo_buff->mem[i].idx = i;
        }

        /* Find and sort the populated memory ranges */
        i = 0;
        lo = t4_read_reg(padap, MA_TARGET_MEM_ENABLE_A);
        if (lo & EDRAM0_ENABLE_F) {
                hi = t4_read_reg(padap, MA_EDRAM0_BAR_A);
                meminfo_buff->avail[i].base =
                        cudbg_mbytes_to_bytes(EDRAM0_BASE_G(hi));
                meminfo_buff->avail[i].limit =
                        meminfo_buff->avail[i].base +
                        cudbg_mbytes_to_bytes(EDRAM0_SIZE_G(hi));
                meminfo_buff->avail[i].idx = 0;
                i++;
        }

        if (lo & EDRAM1_ENABLE_F) {
                hi =  t4_read_reg(padap, MA_EDRAM1_BAR_A);
                meminfo_buff->avail[i].base =
                        cudbg_mbytes_to_bytes(EDRAM1_BASE_G(hi));
                meminfo_buff->avail[i].limit =
                        meminfo_buff->avail[i].base +
                        cudbg_mbytes_to_bytes(EDRAM1_SIZE_G(hi));
                meminfo_buff->avail[i].idx = 1;
                i++;
        }

        if (is_t5(padap->params.chip)) {
                if (lo & EXT_MEM0_ENABLE_F) {
                        hi = t4_read_reg(padap, MA_EXT_MEMORY0_BAR_A);
                        meminfo_buff->avail[i].base =
                                cudbg_mbytes_to_bytes(EXT_MEM_BASE_G(hi));
                        meminfo_buff->avail[i].limit =
                                meminfo_buff->avail[i].base +
                                cudbg_mbytes_to_bytes(EXT_MEM_SIZE_G(hi));
                        meminfo_buff->avail[i].idx = 3;
                        i++;
                }

                if (lo & EXT_MEM1_ENABLE_F) {
                        hi = t4_read_reg(padap, MA_EXT_MEMORY1_BAR_A);
                        meminfo_buff->avail[i].base =
                                cudbg_mbytes_to_bytes(EXT_MEM1_BASE_G(hi));
                        meminfo_buff->avail[i].limit =
                                meminfo_buff->avail[i].base +
                                cudbg_mbytes_to_bytes(EXT_MEM1_SIZE_G(hi));
                        meminfo_buff->avail[i].idx = 4;
                        i++;
                }
        } else {
                if (lo & EXT_MEM_ENABLE_F) {
                        hi = t4_read_reg(padap, MA_EXT_MEMORY_BAR_A);
                        meminfo_buff->avail[i].base =
                                cudbg_mbytes_to_bytes(EXT_MEM_BASE_G(hi));
                        meminfo_buff->avail[i].limit =
                                meminfo_buff->avail[i].base +
                                cudbg_mbytes_to_bytes(EXT_MEM_SIZE_G(hi));
                        meminfo_buff->avail[i].idx = 2;
                        i++;
                }

                if (lo & HMA_MUX_F) {
                        hi = t4_read_reg(padap, MA_EXT_MEMORY1_BAR_A);
                        meminfo_buff->avail[i].base =
                                cudbg_mbytes_to_bytes(EXT_MEM1_BASE_G(hi));
                        meminfo_buff->avail[i].limit =
                                meminfo_buff->avail[i].base +
                                cudbg_mbytes_to_bytes(EXT_MEM1_SIZE_G(hi));
                        meminfo_buff->avail[i].idx = 5;
                        i++;
                }
        }

        if (!i) /* no memory available */
                return CUDBG_STATUS_ENTITY_NOT_FOUND;

        meminfo_buff->avail_c = i;
        sort(meminfo_buff->avail, i, sizeof(struct cudbg_mem_desc),
             cudbg_mem_desc_cmp, NULL);
        (md++)->base = t4_read_reg(padap, SGE_DBQ_CTXT_BADDR_A);
        (md++)->base = t4_read_reg(padap, SGE_IMSG_CTXT_BADDR_A);
        (md++)->base = t4_read_reg(padap, SGE_FLM_CACHE_BADDR_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_TCB_BASE_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_MM_BASE_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_TIMER_BASE_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_MM_RX_FLST_BASE_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_MM_TX_FLST_BASE_A);
        (md++)->base = t4_read_reg(padap, TP_CMM_MM_PS_FLST_BASE_A);

        /* the next few have explicit upper bounds */
        md->base = t4_read_reg(padap, TP_PMM_TX_BASE_A);
        md->limit = md->base - 1 +
                    t4_read_reg(padap, TP_PMM_TX_PAGE_SIZE_A) *
                    PMTXMAXPAGE_G(t4_read_reg(padap, TP_PMM_TX_MAX_PAGE_A));
        md++;

        md->base = t4_read_reg(padap, TP_PMM_RX_BASE_A);
        md->limit = md->base - 1 +
                    t4_read_reg(padap, TP_PMM_RX_PAGE_SIZE_A) *
                    PMRXMAXPAGE_G(t4_read_reg(padap, TP_PMM_RX_MAX_PAGE_A));
        md++;

        if (t4_read_reg(padap, LE_DB_CONFIG_A) & HASHEN_F) {
                if (CHELSIO_CHIP_VERSION(padap->params.chip) <= CHELSIO_T5) {
                        hi = t4_read_reg(padap, LE_DB_TID_HASHBASE_A) / 4;
                        md->base = t4_read_reg(padap, LE_DB_HASH_TID_BASE_A);
                } else {
                        hi = t4_read_reg(padap, LE_DB_HASH_TID_BASE_A);
                        md->base = t4_read_reg(padap,
                                               LE_DB_HASH_TBL_BASE_ADDR_A);
                }
                md->limit = 0;
        } else {
                md->base = 0;
                md->idx = ARRAY_SIZE(cudbg_region);  /* hide it */
        }
        md++;

#define ulp_region(reg) do { \
        md->base = t4_read_reg(padap, ULP_ ## reg ## _LLIMIT_A);\
        (md++)->limit = t4_read_reg(padap, ULP_ ## reg ## _ULIMIT_A);\
} while (0)

        ulp_region(RX_ISCSI);
        ulp_region(RX_TDDP);
        ulp_region(TX_TPT);
        ulp_region(RX_STAG);
        ulp_region(RX_RQ);
        ulp_region(RX_RQUDP);
        ulp_region(RX_PBL);
        ulp_region(TX_PBL);
#undef ulp_region
        md->base = 0;
        md->idx = ARRAY_SIZE(cudbg_region);
        if (!is_t4(padap->params.chip)) {
                u32 fifo_size = t4_read_reg(padap, SGE_DBVFIFO_SIZE_A);
                u32 sge_ctrl = t4_read_reg(padap, SGE_CONTROL2_A);
                u32 size = 0;

                if (is_t5(padap->params.chip)) {
                        if (sge_ctrl & VFIFO_ENABLE_F)
                                size = DBVFIFO_SIZE_G(fifo_size);
                } else {
                        size = T6_DBVFIFO_SIZE_G(fifo_size);
                }

                if (size) {
                        md->base = BASEADDR_G(t4_read_reg(padap,
                                                          SGE_DBVFIFO_BADDR_A));
                        md->limit = md->base + (size << 2) - 1;
                }
        }

        md++;

        md->base = t4_read_reg(padap, ULP_RX_CTX_BASE_A);
        md->limit = 0;
        md++;
        md->base = t4_read_reg(padap, ULP_TX_ERR_TABLE_BASE_A);
        md->limit = 0;
        md++;

        md->base = padap->vres.ocq.start;
        if (padap->vres.ocq.size)
                md->limit = md->base + padap->vres.ocq.size - 1;
        else
                md->idx = ARRAY_SIZE(cudbg_region);  /* hide it */
        md++;

        /* add any address-space holes, there can be up to 3 */
        for (n = 0; n < i - 1; n++)
                if (meminfo_buff->avail[n].limit <
                    meminfo_buff->avail[n + 1].base)
                        (md++)->base = meminfo_buff->avail[n].limit;

        if (meminfo_buff->avail[n].limit)
                (md++)->base = meminfo_buff->avail[n].limit;

        n = md - meminfo_buff->mem;
        meminfo_buff->mem_c = n;

        sort(meminfo_buff->mem, n, sizeof(struct cudbg_mem_desc),
             cudbg_mem_desc_cmp, NULL);

        lo = t4_read_reg(padap, CIM_SDRAM_BASE_ADDR_A);
        hi = t4_read_reg(padap, CIM_SDRAM_ADDR_SIZE_A) + lo - 1;
        meminfo_buff->up_ram_lo = lo;
        meminfo_buff->up_ram_hi = hi;

        lo = t4_read_reg(padap, CIM_EXTMEM2_BASE_ADDR_A);
        hi = t4_read_reg(padap, CIM_EXTMEM2_ADDR_SIZE_A) + lo - 1;
        meminfo_buff->up_extmem2_lo = lo;
        meminfo_buff->up_extmem2_hi = hi;

        lo = t4_read_reg(padap, TP_PMM_RX_MAX_PAGE_A);
        for (i = 0, meminfo_buff->free_rx_cnt = 0; i < 2; i++)
                meminfo_buff->free_rx_cnt +=
                        FREERXPAGECOUNT_G(t4_read_reg(padap,
                                                      TP_FLM_FREE_RX_CNT_A));

        meminfo_buff->rx_pages_data[0] =  PMRXMAXPAGE_G(lo);
        meminfo_buff->rx_pages_data[1] =
                t4_read_reg(padap, TP_PMM_RX_PAGE_SIZE_A) >> 10;
        meminfo_buff->rx_pages_data[2] = (lo & PMRXNUMCHN_F) ? 2 : 1;

        lo = t4_read_reg(padap, TP_PMM_TX_MAX_PAGE_A);
        hi = t4_read_reg(padap, TP_PMM_TX_PAGE_SIZE_A);
        for (i = 0, meminfo_buff->free_tx_cnt = 0; i < 4; i++)
                meminfo_buff->free_tx_cnt +=
                        FREETXPAGECOUNT_G(t4_read_reg(padap,
                                                      TP_FLM_FREE_TX_CNT_A));

        meminfo_buff->tx_pages_data[0] = PMTXMAXPAGE_G(lo);
        meminfo_buff->tx_pages_data[1] =
                hi >= (1 << 20) ? (hi >> 20) : (hi >> 10);
        meminfo_buff->tx_pages_data[2] =
                hi >= (1 << 20) ? 'M' : 'K';
        meminfo_buff->tx_pages_data[3] = 1 << PMTXNUMCHN_G(lo);

        meminfo_buff->p_structs = t4_read_reg(padap, TP_CMM_MM_MAX_PSTRUCT_A);
        meminfo_buff->p_structs_free_cnt =
                FREEPSTRUCTCOUNT_G(t4_read_reg(padap, TP_FLM_FREE_PS_CNT_A));

        for (i = 0; i < 4; i++) {
                if (CHELSIO_CHIP_VERSION(padap->params.chip) > CHELSIO_T5)
                        lo = t4_read_reg(padap,
                                         MPS_RX_MAC_BG_PG_CNT0_A + i * 4);
                else
                        lo = t4_read_reg(padap, MPS_RX_PG_RSV0_A + i * 4);
                if (is_t5(padap->params.chip)) {
                        used = T5_USED_G(lo);
                        alloc = T5_ALLOC_G(lo);
                } else {
                        used = USED_G(lo);
                        alloc = ALLOC_G(lo);
                }
                meminfo_buff->port_used[i] = used;
                meminfo_buff->port_alloc[i] = alloc;
        }

        for (i = 0; i < padap->params.arch.nchan; i++) {
                if (CHELSIO_CHIP_VERSION(padap->params.chip) > CHELSIO_T5)
                        lo = t4_read_reg(padap,
                                         MPS_RX_LPBK_BG_PG_CNT0_A + i * 4);
                else
                        lo = t4_read_reg(padap, MPS_RX_PG_RSV4_A + i * 4);
                if (is_t5(padap->params.chip)) {
                        used = T5_USED_G(lo);
                        alloc = T5_ALLOC_G(lo);
                } else {
                        used = USED_G(lo);
                        alloc = ALLOC_G(lo);
                }
                meminfo_buff->loopback_used[i] = used;
                meminfo_buff->loopback_alloc[i] = alloc;
        }

        return 0;
}

int cudbg_collect_reg_dump(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        u32 buf_size = 0;
        int rc = 0;

        if (is_t4(padap->params.chip))
                buf_size = T4_REGMAP_SIZE;
        else if (is_t5(padap->params.chip) || is_t6(padap->params.chip))
                buf_size = T5_REGMAP_SIZE;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, buf_size, &temp_buff);
        if (rc)
                return rc;
        t4_get_regs(padap, (void *)temp_buff.data, temp_buff.size);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_fw_devlog(struct cudbg_init *pdbg_init,
                            struct cudbg_buffer *dbg_buff,
                            struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct devlog_params *dparams;
        int rc = 0;

        rc = t4_init_devlog_params(padap);
        if (rc < 0) {
                cudbg_err->sys_err = rc;
                return rc;
        }

        dparams = &padap->params.devlog;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, dparams->size, &temp_buff);
        if (rc)
                return rc;

        /* Collect FW devlog */
        if (dparams->start != 0) {
                spin_lock(&padap->win0_lock);
                rc = t4_memory_rw(padap, padap->params.drv_memwin,
                                  dparams->memtype, dparams->start,
                                  dparams->size,
                                  (__be32 *)(char *)temp_buff.data,
                                  1);
                spin_unlock(&padap->win0_lock);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_la(struct cudbg_init *pdbg_init,
                         struct cudbg_buffer *dbg_buff,
                         struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int size, rc;
        u32 cfg = 0;

        if (is_t6(padap->params.chip)) {
                size = padap->params.cim_la_size / 10 + 1;
                size *= 10 * sizeof(u32);
        } else {
                size = padap->params.cim_la_size / 8;
                size *= 8 * sizeof(u32);
        }

        size += sizeof(cfg);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        rc = t4_cim_read(padap, UP_UP_DBG_LA_CFG_A, 1, &cfg);
        if (rc) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }

        memcpy((char *)temp_buff.data, &cfg, sizeof(cfg));
        rc = t4_cim_read_la(padap,
                            (u32 *)((char *)temp_buff.data + sizeof(cfg)),
                            NULL);
        if (rc < 0) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_ma_la(struct cudbg_init *pdbg_init,
                            struct cudbg_buffer *dbg_buff,
                            struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int size, rc;

        size = 2 * CIM_MALA_SIZE * 5 * sizeof(u32);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        t4_cim_read_ma_la(padap,
                          (u32 *)temp_buff.data,
                          (u32 *)((char *)temp_buff.data +
                                  5 * CIM_MALA_SIZE));
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_qcfg(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_cim_qcfg *cim_qcfg_data;
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_cim_qcfg),
                            &temp_buff);
        if (rc)
                return rc;

        cim_qcfg_data = (struct cudbg_cim_qcfg *)temp_buff.data;
        cim_qcfg_data->chip = padap->params.chip;
        rc = t4_cim_read(padap, UP_IBQ_0_RDADDR_A,
                         ARRAY_SIZE(cim_qcfg_data->stat), cim_qcfg_data->stat);
        if (rc) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }

        rc = t4_cim_read(padap, UP_OBQ_0_REALADDR_A,
                         ARRAY_SIZE(cim_qcfg_data->obq_wr),
                         cim_qcfg_data->obq_wr);
        if (rc) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }

        t4_read_cimq_cfg(padap, cim_qcfg_data->base, cim_qcfg_data->size,
                         cim_qcfg_data->thres);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

static int cudbg_read_cim_ibq(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err, int qid)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int no_of_read_words, rc = 0;
        u32 qsize;

        /* collect CIM IBQ */
        qsize = CIM_IBQ_SIZE * 4 * sizeof(u32);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, qsize, &temp_buff);
        if (rc)
                return rc;

        /* t4_read_cim_ibq will return no. of read words or error */
        no_of_read_words = t4_read_cim_ibq(padap, qid,
                                           (u32 *)temp_buff.data, qsize);
        /* no_of_read_words is less than or equal to 0 means error */
        if (no_of_read_words <= 0) {
                if (!no_of_read_words)
                        rc = CUDBG_SYSTEM_ERROR;
                else
                        rc = no_of_read_words;
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_ibq_tp0(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 0);
}

int cudbg_collect_cim_ibq_tp1(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 1);
}

int cudbg_collect_cim_ibq_ulp(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 2);
}

int cudbg_collect_cim_ibq_sge0(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 3);
}

int cudbg_collect_cim_ibq_sge1(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 4);
}

int cudbg_collect_cim_ibq_ncsi(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_ibq(pdbg_init, dbg_buff, cudbg_err, 5);
}

u32 cudbg_cim_obq_size(struct adapter *padap, int qid)
{
        u32 value;

        t4_write_reg(padap, CIM_QUEUE_CONFIG_REF_A, OBQSELECT_F |
                     QUENUMSELECT_V(qid));
        value = t4_read_reg(padap, CIM_QUEUE_CONFIG_CTRL_A);
        value = CIMQSIZE_G(value) * 64; /* size in number of words */
        return value * sizeof(u32);
}

static int cudbg_read_cim_obq(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err, int qid)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int no_of_read_words, rc = 0;
        u32 qsize;

        /* collect CIM OBQ */
        qsize =  cudbg_cim_obq_size(padap, qid);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, qsize, &temp_buff);
        if (rc)
                return rc;

        /* t4_read_cim_obq will return no. of read words or error */
        no_of_read_words = t4_read_cim_obq(padap, qid,
                                           (u32 *)temp_buff.data, qsize);
        /* no_of_read_words is less than or equal to 0 means error */
        if (no_of_read_words <= 0) {
                if (!no_of_read_words)
                        rc = CUDBG_SYSTEM_ERROR;
                else
                        rc = no_of_read_words;
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_obq_ulp0(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 0);
}

int cudbg_collect_cim_obq_ulp1(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 1);
}

int cudbg_collect_cim_obq_ulp2(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 2);
}

int cudbg_collect_cim_obq_ulp3(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 3);
}

int cudbg_collect_cim_obq_sge(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 4);
}

int cudbg_collect_cim_obq_ncsi(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 5);
}

int cudbg_collect_obq_sge_rx_q0(struct cudbg_init *pdbg_init,
                                struct cudbg_buffer *dbg_buff,
                                struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 6);
}

int cudbg_collect_obq_sge_rx_q1(struct cudbg_init *pdbg_init,
                                struct cudbg_buffer *dbg_buff,
                                struct cudbg_error *cudbg_err)
{
        return cudbg_read_cim_obq(pdbg_init, dbg_buff, cudbg_err, 7);
}

static int cudbg_meminfo_get_mem_index(struct adapter *padap,
                                       struct cudbg_meminfo *mem_info,
                                       u8 mem_type, u8 *idx)
{
        u8 i, flag;

        switch (mem_type) {
        case MEM_EDC0:
                flag = EDC0_FLAG;
                break;
        case MEM_EDC1:
                flag = EDC1_FLAG;
                break;
        case MEM_MC0:
                /* Some T5 cards have both MC0 and MC1. */
                flag = is_t5(padap->params.chip) ? MC0_FLAG : MC_FLAG;
                break;
        case MEM_MC1:
                flag = MC1_FLAG;
                break;
        case MEM_HMA:
                flag = HMA_FLAG;
                break;
        default:
                return CUDBG_STATUS_ENTITY_NOT_FOUND;
        }

        for (i = 0; i < mem_info->avail_c; i++) {
                if (mem_info->avail[i].idx == flag) {
                        *idx = i;
                        return 0;
                }
        }

        return CUDBG_STATUS_ENTITY_NOT_FOUND;
}

/* Fetch the @region_name's start and end from @meminfo. */
static int cudbg_get_mem_region(struct adapter *padap,
                                struct cudbg_meminfo *meminfo,
                                u8 mem_type, const char *region_name,
                                struct cudbg_mem_desc *mem_desc)
{
        u8 mc, found = 0;
        u32 i, idx = 0;
        int rc;

        rc = cudbg_meminfo_get_mem_index(padap, meminfo, mem_type, &mc);
        if (rc)
                return rc;

        for (i = 0; i < ARRAY_SIZE(cudbg_region); i++) {
                if (!strcmp(cudbg_region[i], region_name)) {
                        found = 1;
                        idx = i;
                        break;
                }
        }
        if (!found)
                return -EINVAL;

        found = 0;
        for (i = 0; i < meminfo->mem_c; i++) {
                if (meminfo->mem[i].idx >= ARRAY_SIZE(cudbg_region))
                        continue; /* Skip holes */

                if (!(meminfo->mem[i].limit))
                        meminfo->mem[i].limit =
                                i < meminfo->mem_c - 1 ?
                                meminfo->mem[i + 1].base - 1 : ~0;

                if (meminfo->mem[i].idx == idx) {
                        /* Check if the region exists in @mem_type memory */
                        if (meminfo->mem[i].base < meminfo->avail[mc].base &&
                            meminfo->mem[i].limit < meminfo->avail[mc].base)
                                return -EINVAL;

                        if (meminfo->mem[i].base > meminfo->avail[mc].limit)
                                return -EINVAL;

                        memcpy(mem_desc, &meminfo->mem[i],
                               sizeof(struct cudbg_mem_desc));
                        found = 1;
                        break;
                }
        }
        if (!found)
                return -EINVAL;

        return 0;
}

/* Fetch and update the start and end of the requested memory region w.r.t 0
 * in the corresponding EDC/MC/HMA.
 */
static int cudbg_get_mem_relative(struct adapter *padap,
                                  struct cudbg_meminfo *meminfo,
                                  u8 mem_type, u32 *out_base, u32 *out_end)
{
        u8 mc_idx;
        int rc;

        rc = cudbg_meminfo_get_mem_index(padap, meminfo, mem_type, &mc_idx);
        if (rc)
                return rc;

        if (*out_base < meminfo->avail[mc_idx].base)
                *out_base = 0;
        else
                *out_base -= meminfo->avail[mc_idx].base;

        if (*out_end > meminfo->avail[mc_idx].limit)
                *out_end = meminfo->avail[mc_idx].limit;
        else
                *out_end -= meminfo->avail[mc_idx].base;

        return 0;
}

/* Get TX and RX Payload region */
static int cudbg_get_payload_range(struct adapter *padap, u8 mem_type,
                                   const char *region_name,
                                   struct cudbg_region_info *payload)
{
        struct cudbg_mem_desc mem_desc = { 0 };
        struct cudbg_meminfo meminfo;
        int rc;

        rc = cudbg_fill_meminfo(padap, &meminfo);
        if (rc)
                return rc;

        rc = cudbg_get_mem_region(padap, &meminfo, mem_type, region_name,
                                  &mem_desc);
        if (rc) {
                payload->exist = false;
                return 0;
        }

        payload->exist = true;
        payload->start = mem_desc.base;
        payload->end = mem_desc.limit;

        return cudbg_get_mem_relative(padap, &meminfo, mem_type,
                                      &payload->start, &payload->end);
}

static int cudbg_memory_read(struct cudbg_init *pdbg_init, int win,
                             int mtype, u32 addr, u32 len, void *hbuf)
{
        u32 win_pf, memoffset, mem_aperture, mem_base;
        struct adapter *adap = pdbg_init->adap;
        u32 pos, offset, resid;
        u32 *res_buf;
        u64 *buf;
        int ret;

        /* Argument sanity checks ...
         */
        if (addr & 0x3 || (uintptr_t)hbuf & 0x3)
                return -EINVAL;

        buf = (u64 *)hbuf;

        /* Try to do 64-bit reads.  Residual will be handled later. */
        resid = len & 0x7;
        len -= resid;

        ret = t4_memory_rw_init(adap, win, mtype, &memoffset, &mem_base,
                                &mem_aperture);
        if (ret)
                return ret;

        addr = addr + memoffset;
        win_pf = is_t4(adap->params.chip) ? 0 : PFNUM_V(adap->pf);

        pos = addr & ~(mem_aperture - 1);
        offset = addr - pos;

        /* Set up initial PCI-E Memory Window to cover the start of our
         * transfer.
         */
        t4_memory_update_win(adap, win, pos | win_pf);

        /* Transfer data from the adapter */
        while (len > 0) {
                *buf++ = le64_to_cpu((__force __le64)
                                     t4_read_reg64(adap, mem_base + offset));
                offset += sizeof(u64);
                len -= sizeof(u64);

                /* If we've reached the end of our current window aperture,
                 * move the PCI-E Memory Window on to the next.
                 */
                if (offset == mem_aperture) {
                        pos += mem_aperture;
                        offset = 0;
                        t4_memory_update_win(adap, win, pos | win_pf);
                }
        }

        res_buf = (u32 *)buf;
        /* Read residual in 32-bit multiples */
        while (resid > sizeof(u32)) {
                *res_buf++ = le32_to_cpu((__force __le32)
                                         t4_read_reg(adap, mem_base + offset));
                offset += sizeof(u32);
                resid -= sizeof(u32);

                /* If we've reached the end of our current window aperture,
                 * move the PCI-E Memory Window on to the next.
                 */
                if (offset == mem_aperture) {
                        pos += mem_aperture;
                        offset = 0;
                        t4_memory_update_win(adap, win, pos | win_pf);
                }
        }

        /* Transfer residual < 32-bits */
        if (resid)
                t4_memory_rw_residual(adap, resid, mem_base + offset,
                                      (u8 *)res_buf, T4_MEMORY_READ);

        return 0;
}

#define CUDBG_YIELD_ITERATION 256

static int cudbg_read_fw_mem(struct cudbg_init *pdbg_init,
                             struct cudbg_buffer *dbg_buff, u8 mem_type,
                             unsigned long tot_len,
                             struct cudbg_error *cudbg_err)
{
        static const char * const region_name[] = { "Tx payload:",
                                                    "Rx payload:" };
        unsigned long bytes, bytes_left, bytes_read = 0;
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_region_info payload[2];
        u32 yield_count = 0;
        int rc = 0;
        u8 i;

        /* Get TX/RX Payload region range if they exist */
        memset(payload, 0, sizeof(payload));
        for (i = 0; i < ARRAY_SIZE(region_name); i++) {
                rc = cudbg_get_payload_range(padap, mem_type, region_name[i],
                                             &payload[i]);
                if (rc)
                        return rc;

                if (payload[i].exist) {
                        /* Align start and end to avoid wrap around */

                        payload[i].start = roundup(payload[i].start,
                                                   CUDBG_CHUNK_SIZE);
                        payload[i].end = rounddown(payload[i].end,
                                                   CUDBG_CHUNK_SIZE);
                }
        }

        bytes_left = tot_len;
        while (bytes_left > 0) {
                /* As MC size is huge and read through PIO access, this
                 * loop will hold cpu for a longer time. OS may think that
                 * the process is hanged and will generate CPU stall traces.
                 * So yield the cpu regularly.
                 */
                yield_count++;
                if (!(yield_count % CUDBG_YIELD_ITERATION))
                        schedule();

                bytes = min_t(unsigned long, bytes_left,
                              (unsigned long)CUDBG_CHUNK_SIZE);
                rc = cudbg_get_buff(pdbg_init, dbg_buff, bytes, &temp_buff);
                if (rc)
                        return rc;

                for (i = 0; i < ARRAY_SIZE(payload); i++)
                        if (payload[i].exist &&
                            bytes_read >= payload[i].start &&
                            bytes_read + bytes <= payload[i].end)
                                /* TX and RX Payload regions can't overlap */
                                goto skip_read;

                spin_lock(&padap->win0_lock);
                rc = cudbg_memory_read(pdbg_init, MEMWIN_NIC, mem_type,
                                       bytes_read, bytes, temp_buff.data);
                spin_unlock(&padap->win0_lock);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }

skip_read:
                bytes_left -= bytes;
                bytes_read += bytes;
                rc = cudbg_write_and_release_buff(pdbg_init, &temp_buff,
                                                  dbg_buff);
                if (rc) {
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }
        return rc;
}

static void cudbg_t4_fwcache(struct cudbg_init *pdbg_init,
                             struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        int rc;

        if (is_fw_attached(pdbg_init)) {
                /* Flush uP dcache before reading edcX/mcX  */
                rc = t4_fwcache(padap, FW_PARAM_DEV_FWCACHE_FLUSH);
                if (rc)
                        cudbg_err->sys_warn = rc;
        }
}

static int cudbg_collect_mem_region(struct cudbg_init *pdbg_init,
                                    struct cudbg_buffer *dbg_buff,
                                    struct cudbg_error *cudbg_err,
                                    u8 mem_type)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_meminfo mem_info;
        unsigned long size;
        u8 mc_idx;
        int rc;

        memset(&mem_info, 0, sizeof(struct cudbg_meminfo));
        rc = cudbg_fill_meminfo(padap, &mem_info);
        if (rc)
                return rc;

        cudbg_t4_fwcache(pdbg_init, cudbg_err);
        rc = cudbg_meminfo_get_mem_index(padap, &mem_info, mem_type, &mc_idx);
        if (rc)
                return rc;

        size = mem_info.avail[mc_idx].limit - mem_info.avail[mc_idx].base;
        return cudbg_read_fw_mem(pdbg_init, dbg_buff, mem_type, size,
                                 cudbg_err);
}

int cudbg_collect_edc0_meminfo(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
                                        MEM_EDC0);
}

int cudbg_collect_edc1_meminfo(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
                                        MEM_EDC1);
}

int cudbg_collect_mc0_meminfo(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
                                        MEM_MC0);
}

int cudbg_collect_mc1_meminfo(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
                                        MEM_MC1);
}

int cudbg_collect_hma_meminfo(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        return cudbg_collect_mem_region(pdbg_init, dbg_buff, cudbg_err,
                                        MEM_HMA);
}

int cudbg_collect_rss(struct cudbg_init *pdbg_init,
                      struct cudbg_buffer *dbg_buff,
                      struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int rc, nentries;

        nentries = t4_chip_rss_size(padap);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, nentries * sizeof(u16),
                            &temp_buff);
        if (rc)
                return rc;

        rc = t4_read_rss(padap, (u16 *)temp_buff.data);
        if (rc) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_rss_vf_config(struct cudbg_init *pdbg_init,
                                struct cudbg_buffer *dbg_buff,
                                struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_rss_vf_conf *vfconf;
        int vf, rc, vf_count;

        vf_count = padap->params.arch.vfcount;
        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            vf_count * sizeof(struct cudbg_rss_vf_conf),
                            &temp_buff);
        if (rc)
                return rc;

        vfconf = (struct cudbg_rss_vf_conf *)temp_buff.data;
        for (vf = 0; vf < vf_count; vf++)
                t4_read_rss_vf_config(padap, vf, &vfconf[vf].rss_vf_vfl,
                                      &vfconf[vf].rss_vf_vfh, true);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_path_mtu(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, NMTUS * sizeof(u16),
                            &temp_buff);
        if (rc)
                return rc;

        t4_read_mtu_tbl(padap, (u16 *)temp_buff.data, NULL);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_pm_stats(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_pm_stats *pm_stats_buff;
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_pm_stats),
                            &temp_buff);
        if (rc)
                return rc;

        pm_stats_buff = (struct cudbg_pm_stats *)temp_buff.data;
        t4_pmtx_get_stats(padap, pm_stats_buff->tx_cnt, pm_stats_buff->tx_cyc);
        t4_pmrx_get_stats(padap, pm_stats_buff->rx_cnt, pm_stats_buff->rx_cyc);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_hw_sched(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_hw_sched *hw_sched_buff;
        int i, rc = 0;

        if (!padap->params.vpd.cclk)
                return CUDBG_STATUS_CCLK_NOT_DEFINED;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_hw_sched),
                            &temp_buff);

        if (rc)
                return rc;

        hw_sched_buff = (struct cudbg_hw_sched *)temp_buff.data;
        hw_sched_buff->map = t4_read_reg(padap, TP_TX_MOD_QUEUE_REQ_MAP_A);
        hw_sched_buff->mode = TIMERMODE_G(t4_read_reg(padap, TP_MOD_CONFIG_A));
        t4_read_pace_tbl(padap, hw_sched_buff->pace_tab);
        for (i = 0; i < NTX_SCHED; ++i)
                t4_get_tx_sched(padap, i, &hw_sched_buff->kbps[i],
                                &hw_sched_buff->ipg[i], true);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_tp_indirect(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct ireg_buf *ch_tp_pio;
        int i, rc, n = 0;
        u32 size;

        if (is_t5(padap->params.chip))
                n = sizeof(t5_tp_pio_array) +
                    sizeof(t5_tp_tm_pio_array) +
                    sizeof(t5_tp_mib_index_array);
        else
                n = sizeof(t6_tp_pio_array) +
                    sizeof(t6_tp_tm_pio_array) +
                    sizeof(t6_tp_mib_index_array);

        n = n / (IREG_NUM_ELEM * sizeof(u32));
        size = sizeof(struct ireg_buf) * n;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        ch_tp_pio = (struct ireg_buf *)temp_buff.data;

        /* TP_PIO */
        if (is_t5(padap->params.chip))
                n = sizeof(t5_tp_pio_array) / (IREG_NUM_ELEM * sizeof(u32));
        else if (is_t6(padap->params.chip))
                n = sizeof(t6_tp_pio_array) / (IREG_NUM_ELEM * sizeof(u32));

        for (i = 0; i < n; i++) {
                struct ireg_field *tp_pio = &ch_tp_pio->tp_pio;
                u32 *buff = ch_tp_pio->outbuf;

                if (is_t5(padap->params.chip)) {
                        tp_pio->ireg_addr = t5_tp_pio_array[i][0];
                        tp_pio->ireg_data = t5_tp_pio_array[i][1];
                        tp_pio->ireg_local_offset = t5_tp_pio_array[i][2];
                        tp_pio->ireg_offset_range = t5_tp_pio_array[i][3];
                } else if (is_t6(padap->params.chip)) {
                        tp_pio->ireg_addr = t6_tp_pio_array[i][0];
                        tp_pio->ireg_data = t6_tp_pio_array[i][1];
                        tp_pio->ireg_local_offset = t6_tp_pio_array[i][2];
                        tp_pio->ireg_offset_range = t6_tp_pio_array[i][3];
                }
                t4_tp_pio_read(padap, buff, tp_pio->ireg_offset_range,
                               tp_pio->ireg_local_offset, true);
                ch_tp_pio++;
        }

        /* TP_TM_PIO */
        if (is_t5(padap->params.chip))
                n = sizeof(t5_tp_tm_pio_array) / (IREG_NUM_ELEM * sizeof(u32));
        else if (is_t6(padap->params.chip))
                n = sizeof(t6_tp_tm_pio_array) / (IREG_NUM_ELEM * sizeof(u32));

        for (i = 0; i < n; i++) {
                struct ireg_field *tp_pio = &ch_tp_pio->tp_pio;
                u32 *buff = ch_tp_pio->outbuf;

                if (is_t5(padap->params.chip)) {
                        tp_pio->ireg_addr = t5_tp_tm_pio_array[i][0];
                        tp_pio->ireg_data = t5_tp_tm_pio_array[i][1];
                        tp_pio->ireg_local_offset = t5_tp_tm_pio_array[i][2];
                        tp_pio->ireg_offset_range = t5_tp_tm_pio_array[i][3];
                } else if (is_t6(padap->params.chip)) {
                        tp_pio->ireg_addr = t6_tp_tm_pio_array[i][0];
                        tp_pio->ireg_data = t6_tp_tm_pio_array[i][1];
                        tp_pio->ireg_local_offset = t6_tp_tm_pio_array[i][2];
                        tp_pio->ireg_offset_range = t6_tp_tm_pio_array[i][3];
                }
                t4_tp_tm_pio_read(padap, buff, tp_pio->ireg_offset_range,
                                  tp_pio->ireg_local_offset, true);
                ch_tp_pio++;
        }

        /* TP_MIB_INDEX */
        if (is_t5(padap->params.chip))
                n = sizeof(t5_tp_mib_index_array) /
                    (IREG_NUM_ELEM * sizeof(u32));
        else if (is_t6(padap->params.chip))
                n = sizeof(t6_tp_mib_index_array) /
                    (IREG_NUM_ELEM * sizeof(u32));

        for (i = 0; i < n ; i++) {
                struct ireg_field *tp_pio = &ch_tp_pio->tp_pio;
                u32 *buff = ch_tp_pio->outbuf;

                if (is_t5(padap->params.chip)) {
                        tp_pio->ireg_addr = t5_tp_mib_index_array[i][0];
                        tp_pio->ireg_data = t5_tp_mib_index_array[i][1];
                        tp_pio->ireg_local_offset =
                                t5_tp_mib_index_array[i][2];
                        tp_pio->ireg_offset_range =
                                t5_tp_mib_index_array[i][3];
                } else if (is_t6(padap->params.chip)) {
                        tp_pio->ireg_addr = t6_tp_mib_index_array[i][0];
                        tp_pio->ireg_data = t6_tp_mib_index_array[i][1];
                        tp_pio->ireg_local_offset =
                                t6_tp_mib_index_array[i][2];
                        tp_pio->ireg_offset_range =
                                t6_tp_mib_index_array[i][3];
                }
                t4_tp_mib_read(padap, buff, tp_pio->ireg_offset_range,
                               tp_pio->ireg_local_offset, true);
                ch_tp_pio++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

static void cudbg_read_sge_qbase_indirect_reg(struct adapter *padap,
                                              struct sge_qbase_reg_field *qbase,
                                              u32 func, bool is_pf)
{
        u32 *buff, i;

        if (is_pf) {
                buff = qbase->pf_data_value[func];
        } else {
                buff = qbase->vf_data_value[func];
                /* In SGE_QBASE_INDEX,
                 * Entries 0->7 are PF0->7, Entries 8->263 are VFID0->256.
                 */
                func += 8;
        }

        t4_write_reg(padap, qbase->reg_addr, func);
        for (i = 0; i < SGE_QBASE_DATA_REG_NUM; i++, buff++)
                *buff = t4_read_reg(padap, qbase->reg_data[i]);
}

int cudbg_collect_sge_indirect(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct sge_qbase_reg_field *sge_qbase;
        struct ireg_buf *ch_sge_dbg;
        int i, rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            sizeof(*ch_sge_dbg) * 2 + sizeof(*sge_qbase),
                            &temp_buff);
        if (rc)
                return rc;

        ch_sge_dbg = (struct ireg_buf *)temp_buff.data;
        for (i = 0; i < 2; i++) {
                struct ireg_field *sge_pio = &ch_sge_dbg->tp_pio;
                u32 *buff = ch_sge_dbg->outbuf;

                sge_pio->ireg_addr = t5_sge_dbg_index_array[i][0];
                sge_pio->ireg_data = t5_sge_dbg_index_array[i][1];
                sge_pio->ireg_local_offset = t5_sge_dbg_index_array[i][2];
                sge_pio->ireg_offset_range = t5_sge_dbg_index_array[i][3];
                t4_read_indirect(padap,
                                 sge_pio->ireg_addr,
                                 sge_pio->ireg_data,
                                 buff,
                                 sge_pio->ireg_offset_range,
                                 sge_pio->ireg_local_offset);
                ch_sge_dbg++;
        }

        if (CHELSIO_CHIP_VERSION(padap->params.chip) > CHELSIO_T5) {
                sge_qbase = (struct sge_qbase_reg_field *)ch_sge_dbg;
                /* 1 addr reg SGE_QBASE_INDEX and 4 data reg
                 * SGE_QBASE_MAP[0-3]
                 */
                sge_qbase->reg_addr = t6_sge_qbase_index_array[0];
                for (i = 0; i < SGE_QBASE_DATA_REG_NUM; i++)
                        sge_qbase->reg_data[i] =
                                t6_sge_qbase_index_array[i + 1];

                for (i = 0; i <= PCIE_FW_MASTER_M; i++)
                        cudbg_read_sge_qbase_indirect_reg(padap, sge_qbase,
                                                          i, true);

                for (i = 0; i < padap->params.arch.vfcount; i++)
                        cudbg_read_sge_qbase_indirect_reg(padap, sge_qbase,
                                                          i, false);

                sge_qbase->vfcount = padap->params.arch.vfcount;
        }

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_ulprx_la(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_ulprx_la *ulprx_la_buff;
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_ulprx_la),
                            &temp_buff);
        if (rc)
                return rc;

        ulprx_la_buff = (struct cudbg_ulprx_la *)temp_buff.data;
        t4_ulprx_read_la(padap, (u32 *)ulprx_la_buff->data);
        ulprx_la_buff->size = ULPRX_LA_SIZE;
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_tp_la(struct cudbg_init *pdbg_init,
                        struct cudbg_buffer *dbg_buff,
                        struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_tp_la *tp_la_buff;
        int size, rc;

        size = sizeof(struct cudbg_tp_la) + TPLA_SIZE *  sizeof(u64);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        tp_la_buff = (struct cudbg_tp_la *)temp_buff.data;
        tp_la_buff->mode = DBGLAMODE_G(t4_read_reg(padap, TP_DBG_LA_CONFIG_A));
        t4_tp_read_la(padap, (u64 *)tp_la_buff->data, NULL);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_meminfo(struct cudbg_init *pdbg_init,
                          struct cudbg_buffer *dbg_buff,
                          struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_meminfo *meminfo_buff;
        struct cudbg_ver_hdr *ver_hdr;
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            sizeof(struct cudbg_ver_hdr) +
                            sizeof(struct cudbg_meminfo),
                            &temp_buff);
        if (rc)
                return rc;

        ver_hdr = (struct cudbg_ver_hdr *)temp_buff.data;
        ver_hdr->signature = CUDBG_ENTITY_SIGNATURE;
        ver_hdr->revision = CUDBG_MEMINFO_REV;
        ver_hdr->size = sizeof(struct cudbg_meminfo);

        meminfo_buff = (struct cudbg_meminfo *)(temp_buff.data +
                                                sizeof(*ver_hdr));
        rc = cudbg_fill_meminfo(padap, meminfo_buff);
        if (rc) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cim_pif_la(struct cudbg_init *pdbg_init,
                             struct cudbg_buffer *dbg_buff,
                             struct cudbg_error *cudbg_err)
{
        struct cudbg_cim_pif_la *cim_pif_la_buff;
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        int size, rc;

        size = sizeof(struct cudbg_cim_pif_la) +
               2 * CIM_PIFLA_SIZE * 6 * sizeof(u32);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        cim_pif_la_buff = (struct cudbg_cim_pif_la *)temp_buff.data;
        cim_pif_la_buff->size = CIM_PIFLA_SIZE;
        t4_cim_read_pif_la(padap, (u32 *)cim_pif_la_buff->data,
                           (u32 *)cim_pif_la_buff->data + 6 * CIM_PIFLA_SIZE,
                           NULL, NULL);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_clk_info(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_clk_info *clk_info_buff;
        u64 tp_tick_us;
        int rc;

        if (!padap->params.vpd.cclk)
                return CUDBG_STATUS_CCLK_NOT_DEFINED;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_clk_info),
                            &temp_buff);
        if (rc)
                return rc;

        clk_info_buff = (struct cudbg_clk_info *)temp_buff.data;
        clk_info_buff->cclk_ps = 1000000000 / padap->params.vpd.cclk; /* psec */
        clk_info_buff->res = t4_read_reg(padap, TP_TIMER_RESOLUTION_A);
        clk_info_buff->tre = TIMERRESOLUTION_G(clk_info_buff->res);
        clk_info_buff->dack_re = DELAYEDACKRESOLUTION_G(clk_info_buff->res);
        tp_tick_us = (clk_info_buff->cclk_ps << clk_info_buff->tre) / 1000000;

        clk_info_buff->dack_timer =
                (clk_info_buff->cclk_ps << clk_info_buff->dack_re) / 1000000 *
                t4_read_reg(padap, TP_DACK_TIMER_A);
        clk_info_buff->retransmit_min =
                tp_tick_us * t4_read_reg(padap, TP_RXT_MIN_A);
        clk_info_buff->retransmit_max =
                tp_tick_us * t4_read_reg(padap, TP_RXT_MAX_A);
        clk_info_buff->persist_timer_min =
                tp_tick_us * t4_read_reg(padap, TP_PERS_MIN_A);
        clk_info_buff->persist_timer_max =
                tp_tick_us * t4_read_reg(padap, TP_PERS_MAX_A);
        clk_info_buff->keepalive_idle_timer =
                tp_tick_us * t4_read_reg(padap, TP_KEEP_IDLE_A);
        clk_info_buff->keepalive_interval =
                tp_tick_us * t4_read_reg(padap, TP_KEEP_INTVL_A);
        clk_info_buff->initial_srtt =
                tp_tick_us * INITSRTT_G(t4_read_reg(padap, TP_INIT_SRTT_A));
        clk_info_buff->finwait2_timer =
                tp_tick_us * t4_read_reg(padap, TP_FINWAIT2_TIMER_A);

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_pcie_indirect(struct cudbg_init *pdbg_init,
                                struct cudbg_buffer *dbg_buff,
                                struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct ireg_buf *ch_pcie;
        int i, rc, n;
        u32 size;

        n = sizeof(t5_pcie_pdbg_array) / (IREG_NUM_ELEM * sizeof(u32));
        size = sizeof(struct ireg_buf) * n * 2;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        ch_pcie = (struct ireg_buf *)temp_buff.data;
        /* PCIE_PDBG */
        for (i = 0; i < n; i++) {
                struct ireg_field *pcie_pio = &ch_pcie->tp_pio;
                u32 *buff = ch_pcie->outbuf;

                pcie_pio->ireg_addr = t5_pcie_pdbg_array[i][0];
                pcie_pio->ireg_data = t5_pcie_pdbg_array[i][1];
                pcie_pio->ireg_local_offset = t5_pcie_pdbg_array[i][2];
                pcie_pio->ireg_offset_range = t5_pcie_pdbg_array[i][3];
                t4_read_indirect(padap,
                                 pcie_pio->ireg_addr,
                                 pcie_pio->ireg_data,
                                 buff,
                                 pcie_pio->ireg_offset_range,
                                 pcie_pio->ireg_local_offset);
                ch_pcie++;
        }

        /* PCIE_CDBG */
        n = sizeof(t5_pcie_cdbg_array) / (IREG_NUM_ELEM * sizeof(u32));
        for (i = 0; i < n; i++) {
                struct ireg_field *pcie_pio = &ch_pcie->tp_pio;
                u32 *buff = ch_pcie->outbuf;

                pcie_pio->ireg_addr = t5_pcie_cdbg_array[i][0];
                pcie_pio->ireg_data = t5_pcie_cdbg_array[i][1];
                pcie_pio->ireg_local_offset = t5_pcie_cdbg_array[i][2];
                pcie_pio->ireg_offset_range = t5_pcie_cdbg_array[i][3];
                t4_read_indirect(padap,
                                 pcie_pio->ireg_addr,
                                 pcie_pio->ireg_data,
                                 buff,
                                 pcie_pio->ireg_offset_range,
                                 pcie_pio->ireg_local_offset);
                ch_pcie++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_pm_indirect(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct ireg_buf *ch_pm;
        int i, rc, n;
        u32 size;

        n = sizeof(t5_pm_rx_array) / (IREG_NUM_ELEM * sizeof(u32));
        size = sizeof(struct ireg_buf) * n * 2;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        ch_pm = (struct ireg_buf *)temp_buff.data;
        /* PM_RX */
        for (i = 0; i < n; i++) {
                struct ireg_field *pm_pio = &ch_pm->tp_pio;
                u32 *buff = ch_pm->outbuf;

                pm_pio->ireg_addr = t5_pm_rx_array[i][0];
                pm_pio->ireg_data = t5_pm_rx_array[i][1];
                pm_pio->ireg_local_offset = t5_pm_rx_array[i][2];
                pm_pio->ireg_offset_range = t5_pm_rx_array[i][3];
                t4_read_indirect(padap,
                                 pm_pio->ireg_addr,
                                 pm_pio->ireg_data,
                                 buff,
                                 pm_pio->ireg_offset_range,
                                 pm_pio->ireg_local_offset);
                ch_pm++;
        }

        /* PM_TX */
        n = sizeof(t5_pm_tx_array) / (IREG_NUM_ELEM * sizeof(u32));
        for (i = 0; i < n; i++) {
                struct ireg_field *pm_pio = &ch_pm->tp_pio;
                u32 *buff = ch_pm->outbuf;

                pm_pio->ireg_addr = t5_pm_tx_array[i][0];
                pm_pio->ireg_data = t5_pm_tx_array[i][1];
                pm_pio->ireg_local_offset = t5_pm_tx_array[i][2];
                pm_pio->ireg_offset_range = t5_pm_tx_array[i][3];
                t4_read_indirect(padap,
                                 pm_pio->ireg_addr,
                                 pm_pio->ireg_data,
                                 buff,
                                 pm_pio->ireg_offset_range,
                                 pm_pio->ireg_local_offset);
                ch_pm++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_tid(struct cudbg_init *pdbg_init,
                      struct cudbg_buffer *dbg_buff,
                      struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_tid_info_region_rev1 *tid1;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_tid_info_region *tid;
        u32 para[2], val[2];
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            sizeof(struct cudbg_tid_info_region_rev1),
                            &temp_buff);
        if (rc)
                return rc;

        tid1 = (struct cudbg_tid_info_region_rev1 *)temp_buff.data;
        tid = &tid1->tid;
        tid1->ver_hdr.signature = CUDBG_ENTITY_SIGNATURE;
        tid1->ver_hdr.revision = CUDBG_TID_INFO_REV;
        tid1->ver_hdr.size = sizeof(struct cudbg_tid_info_region_rev1) -
                             sizeof(struct cudbg_ver_hdr);

        /* If firmware is not attached/alive, use backdoor register
         * access to collect dump.
         */
        if (!is_fw_attached(pdbg_init))
                goto fill_tid;

#define FW_PARAM_PFVF_A(param) \
        (FW_PARAMS_MNEM_V(FW_PARAMS_MNEM_PFVF) | \
         FW_PARAMS_PARAM_X_V(FW_PARAMS_PARAM_PFVF_##param) | \
         FW_PARAMS_PARAM_Y_V(0) | \
         FW_PARAMS_PARAM_Z_V(0))

        para[0] = FW_PARAM_PFVF_A(ETHOFLD_START);
        para[1] = FW_PARAM_PFVF_A(ETHOFLD_END);
        rc = t4_query_params(padap, padap->mbox, padap->pf, 0, 2, para, val);
        if (rc <  0) {
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        tid->uotid_base = val[0];
        tid->nuotids = val[1] - val[0] + 1;

        if (is_t5(padap->params.chip)) {
                tid->sb = t4_read_reg(padap, LE_DB_SERVER_INDEX_A) / 4;
        } else if (is_t6(padap->params.chip)) {
                tid1->tid_start =
                        t4_read_reg(padap, LE_DB_ACTIVE_TABLE_START_INDEX_A);
                tid->sb = t4_read_reg(padap, LE_DB_SRVR_START_INDEX_A);

                para[0] = FW_PARAM_PFVF_A(HPFILTER_START);
                para[1] = FW_PARAM_PFVF_A(HPFILTER_END);
                rc = t4_query_params(padap, padap->mbox, padap->pf, 0, 2,
                                     para, val);
                if (rc < 0) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
                tid->hpftid_base = val[0];
                tid->nhpftids = val[1] - val[0] + 1;
        }

#undef FW_PARAM_PFVF_A

fill_tid:
        tid->ntids = padap->tids.ntids;
        tid->nstids = padap->tids.nstids;
        tid->stid_base = padap->tids.stid_base;
        tid->hash_base = padap->tids.hash_base;

        tid->natids = padap->tids.natids;
        tid->nftids = padap->tids.nftids;
        tid->ftid_base = padap->tids.ftid_base;
        tid->aftid_base = padap->tids.aftid_base;
        tid->aftid_end = padap->tids.aftid_end;

        tid->sftid_base = padap->tids.sftid_base;
        tid->nsftids = padap->tids.nsftids;

        tid->flags = padap->flags;
        tid->le_db_conf = t4_read_reg(padap, LE_DB_CONFIG_A);
        tid->ip_users = t4_read_reg(padap, LE_DB_ACT_CNT_IPV4_A);
        tid->ipv6_users = t4_read_reg(padap, LE_DB_ACT_CNT_IPV6_A);

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_pcie_config(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        u32 size, *value, j;
        int i, rc, n;

        size = sizeof(u32) * CUDBG_NUM_PCIE_CONFIG_REGS;
        n = sizeof(t5_pcie_config_array) / (2 * sizeof(u32));
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        value = (u32 *)temp_buff.data;
        for (i = 0; i < n; i++) {
                for (j = t5_pcie_config_array[i][0];
                     j <= t5_pcie_config_array[i][1]; j += 4) {
                        t4_hw_pci_read_cfg4(padap, j, value);
                        value++;
                }
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

static int cudbg_sge_ctxt_check_valid(u32 *buf, int type)
{
        int index, bit, bit_pos = 0;

        switch (type) {
        case CTXT_EGRESS:
                bit_pos = 176;
                break;
        case CTXT_INGRESS:
                bit_pos = 141;
                break;
        case CTXT_FLM:
                bit_pos = 89;
                break;
        }
        index = bit_pos / 32;
        bit =  bit_pos % 32;
        return buf[index] & (1U << bit);
}

static int cudbg_get_ctxt_region_info(struct adapter *padap,
                                      struct cudbg_region_info *ctx_info,
                                      u8 *mem_type)
{
        struct cudbg_mem_desc mem_desc;
        struct cudbg_meminfo meminfo;
        u32 i, j, value, found;
        u8 flq;
        int rc;

        rc = cudbg_fill_meminfo(padap, &meminfo);
        if (rc)
                return rc;

        /* Get EGRESS and INGRESS context region size */
        for (i = CTXT_EGRESS; i <= CTXT_INGRESS; i++) {
                found = 0;
                memset(&mem_desc, 0, sizeof(struct cudbg_mem_desc));
                for (j = 0; j < ARRAY_SIZE(meminfo.avail); j++) {
                        rc = cudbg_get_mem_region(padap, &meminfo, j,
                                                  cudbg_region[i],
                                                  &mem_desc);
                        if (!rc) {
                                found = 1;
                                rc = cudbg_get_mem_relative(padap, &meminfo, j,
                                                            &mem_desc.base,
                                                            &mem_desc.limit);
                                if (rc) {
                                        ctx_info[i].exist = false;
                                        break;
                                }
                                ctx_info[i].exist = true;
                                ctx_info[i].start = mem_desc.base;
                                ctx_info[i].end = mem_desc.limit;
                                mem_type[i] = j;
                                break;
                        }
                }
                if (!found)
                        ctx_info[i].exist = false;
        }

        /* Get FLM and CNM max qid. */
        value = t4_read_reg(padap, SGE_FLM_CFG_A);

        /* Get number of data freelist queues */
        flq = HDRSTARTFLQ_G(value);
        ctx_info[CTXT_FLM].exist = true;
        ctx_info[CTXT_FLM].end = (CUDBG_MAX_FL_QIDS >> flq) * SGE_CTXT_SIZE;

        /* The number of CONM contexts are same as number of freelist
         * queues.
         */
        ctx_info[CTXT_CNM].exist = true;
        ctx_info[CTXT_CNM].end = ctx_info[CTXT_FLM].end;

        return 0;
}

int cudbg_dump_context_size(struct adapter *padap)
{
        struct cudbg_region_info region_info[CTXT_CNM + 1] = { {0} };
        u8 mem_type[CTXT_INGRESS + 1] = { 0 };
        u32 i, size = 0;
        int rc;

        /* Get max valid qid for each type of queue */
        rc = cudbg_get_ctxt_region_info(padap, region_info, mem_type);
        if (rc)
                return rc;

        for (i = 0; i < CTXT_CNM; i++) {
                if (!region_info[i].exist) {
                        if (i == CTXT_EGRESS || i == CTXT_INGRESS)
                                size += CUDBG_LOWMEM_MAX_CTXT_QIDS *
                                        SGE_CTXT_SIZE;
                        continue;
                }

                size += (region_info[i].end - region_info[i].start + 1) /
                        SGE_CTXT_SIZE;
        }
        return size * sizeof(struct cudbg_ch_cntxt);
}

static void cudbg_read_sge_ctxt(struct cudbg_init *pdbg_init, u32 cid,
                                enum ctxt_type ctype, u32 *data)
{
        struct adapter *padap = pdbg_init->adap;
        int rc = -1;

        /* Under heavy traffic, the SGE Queue contexts registers will be
         * frequently accessed by firmware.
         *
         * To avoid conflicts with firmware, always ask firmware to fetch
         * the SGE Queue contexts via mailbox. On failure, fallback to
         * accessing hardware registers directly.
         */
        if (is_fw_attached(pdbg_init))
                rc = t4_sge_ctxt_rd(padap, padap->mbox, cid, ctype, data);
        if (rc)
                t4_sge_ctxt_rd_bd(padap, cid, ctype, data);
}

static void cudbg_get_sge_ctxt_fw(struct cudbg_init *pdbg_init, u32 max_qid,
                                  u8 ctxt_type,
                                  struct cudbg_ch_cntxt **out_buff)
{
        struct cudbg_ch_cntxt *buff = *out_buff;
        int rc;
        u32 j;

        for (j = 0; j < max_qid; j++) {
                cudbg_read_sge_ctxt(pdbg_init, j, ctxt_type, buff->data);
                rc = cudbg_sge_ctxt_check_valid(buff->data, ctxt_type);
                if (!rc)
                        continue;

                buff->cntxt_type = ctxt_type;
                buff->cntxt_id = j;
                buff++;
                if (ctxt_type == CTXT_FLM) {
                        cudbg_read_sge_ctxt(pdbg_init, j, CTXT_CNM, buff->data);
                        buff->cntxt_type = CTXT_CNM;
                        buff->cntxt_id = j;
                        buff++;
                }
        }

        *out_buff = buff;
}

int cudbg_collect_dump_context(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        struct cudbg_region_info region_info[CTXT_CNM + 1] = { {0} };
        struct adapter *padap = pdbg_init->adap;
        u32 j, size, max_ctx_size, max_ctx_qid;
        u8 mem_type[CTXT_INGRESS + 1] = { 0 };
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_ch_cntxt *buff;
        u64 *dst_off, *src_off;
        u8 *ctx_buf;
        u8 i, k;
        int rc;

        /* Get max valid qid for each type of queue */
        rc = cudbg_get_ctxt_region_info(padap, region_info, mem_type);
        if (rc)
                return rc;

        rc = cudbg_dump_context_size(padap);
        if (rc <= 0)
                return CUDBG_STATUS_ENTITY_NOT_FOUND;

        size = rc;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        /* Get buffer with enough space to read the biggest context
         * region in memory.
         */
        max_ctx_size = max(region_info[CTXT_EGRESS].end -
                           region_info[CTXT_EGRESS].start + 1,
                           region_info[CTXT_INGRESS].end -
                           region_info[CTXT_INGRESS].start + 1);

        ctx_buf = kvzalloc(max_ctx_size, GFP_KERNEL);
        if (!ctx_buf) {
                cudbg_put_buff(pdbg_init, &temp_buff);
                return -ENOMEM;
        }

        buff = (struct cudbg_ch_cntxt *)temp_buff.data;

        /* Collect EGRESS and INGRESS context data.
         * In case of failures, fallback to collecting via FW or
         * backdoor access.
         */
        for (i = CTXT_EGRESS; i <= CTXT_INGRESS; i++) {
                if (!region_info[i].exist) {
                        max_ctx_qid = CUDBG_LOWMEM_MAX_CTXT_QIDS;
                        cudbg_get_sge_ctxt_fw(pdbg_init, max_ctx_qid, i,
                                              &buff);
                        continue;
                }

                max_ctx_size = region_info[i].end - region_info[i].start + 1;
                max_ctx_qid = max_ctx_size / SGE_CTXT_SIZE;

                /* If firmware is not attached/alive, use backdoor register
                 * access to collect dump.
                 */
                if (is_fw_attached(pdbg_init)) {
                        t4_sge_ctxt_flush(padap, padap->mbox, i);

                        rc = t4_memory_rw(padap, MEMWIN_NIC, mem_type[i],
                                          region_info[i].start, max_ctx_size,
                                          (__be32 *)ctx_buf, 1);
                }

                if (rc || !is_fw_attached(pdbg_init)) {
                        max_ctx_qid = CUDBG_LOWMEM_MAX_CTXT_QIDS;
                        cudbg_get_sge_ctxt_fw(pdbg_init, max_ctx_qid, i,
                                              &buff);
                        continue;
                }

                for (j = 0; j < max_ctx_qid; j++) {
                        src_off = (u64 *)(ctx_buf + j * SGE_CTXT_SIZE);
                        dst_off = (u64 *)buff->data;

                        /* The data is stored in 64-bit cpu order.  Convert it
                         * to big endian before parsing.
                         */
                        for (k = 0; k < SGE_CTXT_SIZE / sizeof(u64); k++)
                                dst_off[k] = cpu_to_be64(src_off[k]);

                        rc = cudbg_sge_ctxt_check_valid(buff->data, i);
                        if (!rc)
                                continue;

                        buff->cntxt_type = i;
                        buff->cntxt_id = j;
                        buff++;
                }
        }

        kvfree(ctx_buf);

        /* Collect FREELIST and CONGESTION MANAGER contexts */
        max_ctx_size = region_info[CTXT_FLM].end -
                       region_info[CTXT_FLM].start + 1;
        max_ctx_qid = max_ctx_size / SGE_CTXT_SIZE;
        /* Since FLM and CONM are 1-to-1 mapped, the below function
         * will fetch both FLM and CONM contexts.
         */
        cudbg_get_sge_ctxt_fw(pdbg_init, max_ctx_qid, CTXT_FLM, &buff);

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

static inline void cudbg_tcamxy2valmask(u64 x, u64 y, u8 *addr, u64 *mask)
{
        *mask = x | y;
        y = (__force u64)cpu_to_be64(y);
        memcpy(addr, (char *)&y + 2, ETH_ALEN);
}

static void cudbg_mps_rpl_backdoor(struct adapter *padap,
                                   struct fw_ldst_mps_rplc *mps_rplc)
{
        if (is_t5(padap->params.chip)) {
                mps_rplc->rplc255_224 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP3_A));
                mps_rplc->rplc223_192 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP2_A));
                mps_rplc->rplc191_160 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP1_A));
                mps_rplc->rplc159_128 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP0_A));
        } else {
                mps_rplc->rplc255_224 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP7_A));
                mps_rplc->rplc223_192 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP6_A));
                mps_rplc->rplc191_160 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP5_A));
                mps_rplc->rplc159_128 = htonl(t4_read_reg(padap,
                                                          MPS_VF_RPLCT_MAP4_A));
        }
        mps_rplc->rplc127_96 = htonl(t4_read_reg(padap, MPS_VF_RPLCT_MAP3_A));
        mps_rplc->rplc95_64 = htonl(t4_read_reg(padap, MPS_VF_RPLCT_MAP2_A));
        mps_rplc->rplc63_32 = htonl(t4_read_reg(padap, MPS_VF_RPLCT_MAP1_A));
        mps_rplc->rplc31_0 = htonl(t4_read_reg(padap, MPS_VF_RPLCT_MAP0_A));
}

static int cudbg_collect_tcam_index(struct cudbg_init *pdbg_init,
                                    struct cudbg_mps_tcam *tcam, u32 idx)
{
        struct adapter *padap = pdbg_init->adap;
        u64 tcamy, tcamx, val;
        u32 ctl, data2;
        int rc = 0;

        if (CHELSIO_CHIP_VERSION(padap->params.chip) >= CHELSIO_T6) {
                /* CtlReqID   - 1: use Host Driver Requester ID
                 * CtlCmdType - 0: Read, 1: Write
                 * CtlTcamSel - 0: TCAM0, 1: TCAM1
                 * CtlXYBitSel- 0: Y bit, 1: X bit
                 */

                /* Read tcamy */
                ctl = CTLREQID_V(1) | CTLCMDTYPE_V(0) | CTLXYBITSEL_V(0);
                if (idx < 256)
                        ctl |= CTLTCAMINDEX_V(idx) | CTLTCAMSEL_V(0);
                else
                        ctl |= CTLTCAMINDEX_V(idx - 256) | CTLTCAMSEL_V(1);

                t4_write_reg(padap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
                val = t4_read_reg(padap, MPS_CLS_TCAM_RDATA1_REQ_ID1_A);
                tcamy = DMACH_G(val) << 32;
                tcamy |= t4_read_reg(padap, MPS_CLS_TCAM_RDATA0_REQ_ID1_A);
                data2 = t4_read_reg(padap, MPS_CLS_TCAM_RDATA2_REQ_ID1_A);
                tcam->lookup_type = DATALKPTYPE_G(data2);

                /* 0 - Outer header, 1 - Inner header
                 * [71:48] bit locations are overloaded for
                 * outer vs. inner lookup types.
                 */
                if (tcam->lookup_type && tcam->lookup_type != DATALKPTYPE_M) {
                        /* Inner header VNI */
                        tcam->vniy = (data2 & DATAVIDH2_F) | DATAVIDH1_G(data2);
                        tcam->vniy = (tcam->vniy << 16) | VIDL_G(val);
                        tcam->dip_hit = data2 & DATADIPHIT_F;
                } else {
                        tcam->vlan_vld = data2 & DATAVIDH2_F;
                        tcam->ivlan = VIDL_G(val);
                }

                tcam->port_num = DATAPORTNUM_G(data2);

                /* Read tcamx. Change the control param */
                ctl |= CTLXYBITSEL_V(1);
                t4_write_reg(padap, MPS_CLS_TCAM_DATA2_CTL_A, ctl);
                val = t4_read_reg(padap, MPS_CLS_TCAM_RDATA1_REQ_ID1_A);
                tcamx = DMACH_G(val) << 32;
                tcamx |= t4_read_reg(padap, MPS_CLS_TCAM_RDATA0_REQ_ID1_A);
                data2 = t4_read_reg(padap, MPS_CLS_TCAM_RDATA2_REQ_ID1_A);
                if (tcam->lookup_type && tcam->lookup_type != DATALKPTYPE_M) {
                        /* Inner header VNI mask */
                        tcam->vnix = (data2 & DATAVIDH2_F) | DATAVIDH1_G(data2);
                        tcam->vnix = (tcam->vnix << 16) | VIDL_G(val);
                }
        } else {
                tcamy = t4_read_reg64(padap, MPS_CLS_TCAM_Y_L(idx));
                tcamx = t4_read_reg64(padap, MPS_CLS_TCAM_X_L(idx));
        }

        /* If no entry, return */
        if (tcamx & tcamy)
                return rc;

        tcam->cls_lo = t4_read_reg(padap, MPS_CLS_SRAM_L(idx));
        tcam->cls_hi = t4_read_reg(padap, MPS_CLS_SRAM_H(idx));

        if (is_t5(padap->params.chip))
                tcam->repli = (tcam->cls_lo & REPLICATE_F);
        else if (is_t6(padap->params.chip))
                tcam->repli = (tcam->cls_lo & T6_REPLICATE_F);

        if (tcam->repli) {
                struct fw_ldst_cmd ldst_cmd;
                struct fw_ldst_mps_rplc mps_rplc;

                memset(&ldst_cmd, 0, sizeof(ldst_cmd));
                ldst_cmd.op_to_addrspace =
                        htonl(FW_CMD_OP_V(FW_LDST_CMD) |
                              FW_CMD_REQUEST_F | FW_CMD_READ_F |
                              FW_LDST_CMD_ADDRSPACE_V(FW_LDST_ADDRSPC_MPS));
                ldst_cmd.cycles_to_len16 = htonl(FW_LEN16(ldst_cmd));
                ldst_cmd.u.mps.rplc.fid_idx =
                        htons(FW_LDST_CMD_FID_V(FW_LDST_MPS_RPLC) |
                              FW_LDST_CMD_IDX_V(idx));

                /* If firmware is not attached/alive, use backdoor register
                 * access to collect dump.
                 */
                if (is_fw_attached(pdbg_init))
                        rc = t4_wr_mbox(padap, padap->mbox, &ldst_cmd,
                                        sizeof(ldst_cmd), &ldst_cmd);

                if (rc || !is_fw_attached(pdbg_init)) {
                        cudbg_mps_rpl_backdoor(padap, &mps_rplc);
                        /* Ignore error since we collected directly from
                         * reading registers.
                         */
                        rc = 0;
                } else {
                        mps_rplc = ldst_cmd.u.mps.rplc;
                }

                tcam->rplc[0] = ntohl(mps_rplc.rplc31_0);
                tcam->rplc[1] = ntohl(mps_rplc.rplc63_32);
                tcam->rplc[2] = ntohl(mps_rplc.rplc95_64);
                tcam->rplc[3] = ntohl(mps_rplc.rplc127_96);
                if (padap->params.arch.mps_rplc_size > CUDBG_MAX_RPLC_SIZE) {
                        tcam->rplc[4] = ntohl(mps_rplc.rplc159_128);
                        tcam->rplc[5] = ntohl(mps_rplc.rplc191_160);
                        tcam->rplc[6] = ntohl(mps_rplc.rplc223_192);
                        tcam->rplc[7] = ntohl(mps_rplc.rplc255_224);
                }
        }
        cudbg_tcamxy2valmask(tcamx, tcamy, tcam->addr, &tcam->mask);
        tcam->idx = idx;
        tcam->rplc_size = padap->params.arch.mps_rplc_size;
        return rc;
}

int cudbg_collect_mps_tcam(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        u32 size = 0, i, n, total_size = 0;
        struct cudbg_mps_tcam *tcam;
        int rc;

        n = padap->params.arch.mps_tcam_size;
        size = sizeof(struct cudbg_mps_tcam) * n;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        tcam = (struct cudbg_mps_tcam *)temp_buff.data;
        for (i = 0; i < n; i++) {
                rc = cudbg_collect_tcam_index(pdbg_init, tcam, i);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
                total_size += sizeof(struct cudbg_mps_tcam);
                tcam++;
        }

        if (!total_size) {
                rc = CUDBG_SYSTEM_ERROR;
                cudbg_err->sys_err = rc;
                cudbg_put_buff(pdbg_init, &temp_buff);
                return rc;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_vpd_data(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        char vpd_str[CUDBG_VPD_VER_LEN + 1];
        u32 scfg_vers, vpd_vers, fw_vers;
        struct cudbg_vpd_data *vpd_data;
        struct vpd_params vpd = { 0 };
        int rc, ret;

        rc = t4_get_raw_vpd_params(padap, &vpd);
        if (rc)
                return rc;

        rc = t4_get_fw_version(padap, &fw_vers);
        if (rc)
                return rc;

        /* Serial Configuration Version is located beyond the PF's vpd size.
         * Temporarily give access to entire EEPROM to get it.
         */
        rc = pci_set_vpd_size(padap->pdev, EEPROMVSIZE);
        if (rc < 0)
                return rc;

        ret = cudbg_read_vpd_reg(padap, CUDBG_SCFG_VER_ADDR, CUDBG_SCFG_VER_LEN,
                                 &scfg_vers);

        /* Restore back to original PF's vpd size */
        rc = pci_set_vpd_size(padap->pdev, CUDBG_VPD_PF_SIZE);
        if (rc < 0)
                return rc;

        if (ret)
                return ret;

        rc = cudbg_read_vpd_reg(padap, CUDBG_VPD_VER_ADDR, CUDBG_VPD_VER_LEN,
                                vpd_str);
        if (rc)
                return rc;

        vpd_str[CUDBG_VPD_VER_LEN] = '\0';
        rc = kstrtouint(vpd_str, 0, &vpd_vers);
        if (rc)
                return rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff, sizeof(struct cudbg_vpd_data),
                            &temp_buff);
        if (rc)
                return rc;

        vpd_data = (struct cudbg_vpd_data *)temp_buff.data;
        memcpy(vpd_data->sn, vpd.sn, SERNUM_LEN + 1);
        memcpy(vpd_data->bn, vpd.pn, PN_LEN + 1);
        memcpy(vpd_data->na, vpd.na, MACADDR_LEN + 1);
        memcpy(vpd_data->mn, vpd.id, ID_LEN + 1);
        vpd_data->scfg_vers = scfg_vers;
        vpd_data->vpd_vers = vpd_vers;
        vpd_data->fw_major = FW_HDR_FW_VER_MAJOR_G(fw_vers);
        vpd_data->fw_minor = FW_HDR_FW_VER_MINOR_G(fw_vers);
        vpd_data->fw_micro = FW_HDR_FW_VER_MICRO_G(fw_vers);
        vpd_data->fw_build = FW_HDR_FW_VER_BUILD_G(fw_vers);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

static int cudbg_read_tid(struct cudbg_init *pdbg_init, u32 tid,
                          struct cudbg_tid_data *tid_data)
{
        struct adapter *padap = pdbg_init->adap;
        int i, cmd_retry = 8;
        u32 val;

        /* Fill REQ_DATA regs with 0's */
        for (i = 0; i < NUM_LE_DB_DBGI_REQ_DATA_INSTANCES; i++)
                t4_write_reg(padap, LE_DB_DBGI_REQ_DATA_A + (i << 2), 0);

        /* Write DBIG command */
        val = DBGICMD_V(4) | DBGITID_V(tid);
        t4_write_reg(padap, LE_DB_DBGI_REQ_TCAM_CMD_A, val);
        tid_data->dbig_cmd = val;

        val = DBGICMDSTRT_F | DBGICMDMODE_V(1); /* LE mode */
        t4_write_reg(padap, LE_DB_DBGI_CONFIG_A, val);
        tid_data->dbig_conf = val;

        /* Poll the DBGICMDBUSY bit */
        val = 1;
        while (val) {
                val = t4_read_reg(padap, LE_DB_DBGI_CONFIG_A);
                val = val & DBGICMDBUSY_F;
                cmd_retry--;
                if (!cmd_retry)
                        return CUDBG_SYSTEM_ERROR;
        }

        /* Check RESP status */
        val = t4_read_reg(padap, LE_DB_DBGI_RSP_STATUS_A);
        tid_data->dbig_rsp_stat = val;
        if (!(val & 1))
                return CUDBG_SYSTEM_ERROR;

        /* Read RESP data */
        for (i = 0; i < NUM_LE_DB_DBGI_RSP_DATA_INSTANCES; i++)
                tid_data->data[i] = t4_read_reg(padap,
                                                LE_DB_DBGI_RSP_DATA_A +
                                                (i << 2));
        tid_data->tid = tid;
        return 0;
}

static int cudbg_get_le_type(u32 tid, struct cudbg_tcam tcam_region)
{
        int type = LE_ET_UNKNOWN;

        if (tid < tcam_region.server_start)
                type = LE_ET_TCAM_CON;
        else if (tid < tcam_region.filter_start)
                type = LE_ET_TCAM_SERVER;
        else if (tid < tcam_region.clip_start)
                type = LE_ET_TCAM_FILTER;
        else if (tid < tcam_region.routing_start)
                type = LE_ET_TCAM_CLIP;
        else if (tid < tcam_region.tid_hash_base)
                type = LE_ET_TCAM_ROUTING;
        else if (tid < tcam_region.max_tid)
                type = LE_ET_HASH_CON;
        else
                type = LE_ET_INVALID_TID;

        return type;
}

static int cudbg_is_ipv6_entry(struct cudbg_tid_data *tid_data,
                               struct cudbg_tcam tcam_region)
{
        int ipv6 = 0;
        int le_type;

        le_type = cudbg_get_le_type(tid_data->tid, tcam_region);
        if (tid_data->tid & 1)
                return 0;

        if (le_type == LE_ET_HASH_CON) {
                ipv6 = tid_data->data[16] & 0x8000;
        } else if (le_type == LE_ET_TCAM_CON) {
                ipv6 = tid_data->data[16] & 0x8000;
                if (ipv6)
                        ipv6 = tid_data->data[9] == 0x00C00000;
        } else {
                ipv6 = 0;
        }
        return ipv6;
}

void cudbg_fill_le_tcam_info(struct adapter *padap,
                             struct cudbg_tcam *tcam_region)
{
        u32 value;

        /* Get the LE regions */
        value = t4_read_reg(padap, LE_DB_TID_HASHBASE_A); /* hash base index */
        tcam_region->tid_hash_base = value;

        /* Get routing table index */
        value = t4_read_reg(padap, LE_DB_ROUTING_TABLE_INDEX_A);
        tcam_region->routing_start = value;

        /* Get clip table index. For T6 there is separate CLIP TCAM */
        if (is_t6(padap->params.chip))
                value = t4_read_reg(padap, LE_DB_CLCAM_TID_BASE_A);
        else
                value = t4_read_reg(padap, LE_DB_CLIP_TABLE_INDEX_A);
        tcam_region->clip_start = value;

        /* Get filter table index */
        value = t4_read_reg(padap, LE_DB_FILTER_TABLE_INDEX_A);
        tcam_region->filter_start = value;

        /* Get server table index */
        value = t4_read_reg(padap, LE_DB_SERVER_INDEX_A);
        tcam_region->server_start = value;

        /* Check whether hash is enabled and calculate the max tids */
        value = t4_read_reg(padap, LE_DB_CONFIG_A);
        if ((value >> HASHEN_S) & 1) {
                value = t4_read_reg(padap, LE_DB_HASH_CONFIG_A);
                if (CHELSIO_CHIP_VERSION(padap->params.chip) > CHELSIO_T5) {
                        tcam_region->max_tid = (value & 0xFFFFF) +
                                               tcam_region->tid_hash_base;
                } else {
                        value = HASHTIDSIZE_G(value);
                        value = 1 << value;
                        tcam_region->max_tid = value +
                                               tcam_region->tid_hash_base;
                }
        } else { /* hash not enabled */
                if (is_t6(padap->params.chip))
                        tcam_region->max_tid = (value & ASLIPCOMPEN_F) ?
                                               CUDBG_MAX_TID_COMP_EN :
                                               CUDBG_MAX_TID_COMP_DIS;
                else
                        tcam_region->max_tid = CUDBG_MAX_TCAM_TID;
        }

        if (is_t6(padap->params.chip))
                tcam_region->max_tid += CUDBG_T6_CLIP;
}

int cudbg_collect_le_tcam(struct cudbg_init *pdbg_init,
                          struct cudbg_buffer *dbg_buff,
                          struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_tcam tcam_region = { 0 };
        struct cudbg_tid_data *tid_data;
        u32 bytes = 0;
        int rc, size;
        u32 i;

        cudbg_fill_le_tcam_info(padap, &tcam_region);

        size = sizeof(struct cudbg_tid_data) * tcam_region.max_tid;
        size += sizeof(struct cudbg_tcam);
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        memcpy(temp_buff.data, &tcam_region, sizeof(struct cudbg_tcam));
        bytes = sizeof(struct cudbg_tcam);
        tid_data = (struct cudbg_tid_data *)(temp_buff.data + bytes);
        /* read all tid */
        for (i = 0; i < tcam_region.max_tid; ) {
                rc = cudbg_read_tid(pdbg_init, i, tid_data);
                if (rc) {
                        cudbg_err->sys_warn = CUDBG_STATUS_PARTIAL_DATA;
                        /* Update tcam header and exit */
                        tcam_region.max_tid = i;
                        memcpy(temp_buff.data, &tcam_region,
                               sizeof(struct cudbg_tcam));
                        goto out;
                }

                if (cudbg_is_ipv6_entry(tid_data, tcam_region)) {
                        /* T6 CLIP TCAM: ipv6 takes 4 entries */
                        if (is_t6(padap->params.chip) &&
                            i >= tcam_region.clip_start &&
                            i < tcam_region.clip_start + CUDBG_T6_CLIP)
                                i += 4;
                        else /* Main TCAM: ipv6 takes two tids */
                                i += 2;
                } else {
                        i++;
                }

                tid_data++;
                bytes += sizeof(struct cudbg_tid_data);
        }

out:
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_cctrl(struct cudbg_init *pdbg_init,
                        struct cudbg_buffer *dbg_buff,
                        struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        u32 size;
        int rc;

        size = sizeof(u16) * NMTUS * NCCTRL_WIN;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        t4_read_cong_tbl(padap, (void *)temp_buff.data);
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_ma_indirect(struct cudbg_init *pdbg_init,
                              struct cudbg_buffer *dbg_buff,
                              struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct ireg_buf *ma_indr;
        int i, rc, n;
        u32 size, j;

        if (CHELSIO_CHIP_VERSION(padap->params.chip) < CHELSIO_T6)
                return CUDBG_STATUS_ENTITY_NOT_FOUND;

        n = sizeof(t6_ma_ireg_array) / (IREG_NUM_ELEM * sizeof(u32));
        size = sizeof(struct ireg_buf) * n * 2;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        ma_indr = (struct ireg_buf *)temp_buff.data;
        for (i = 0; i < n; i++) {
                struct ireg_field *ma_fli = &ma_indr->tp_pio;
                u32 *buff = ma_indr->outbuf;

                ma_fli->ireg_addr = t6_ma_ireg_array[i][0];
                ma_fli->ireg_data = t6_ma_ireg_array[i][1];
                ma_fli->ireg_local_offset = t6_ma_ireg_array[i][2];
                ma_fli->ireg_offset_range = t6_ma_ireg_array[i][3];
                t4_read_indirect(padap, ma_fli->ireg_addr, ma_fli->ireg_data,
                                 buff, ma_fli->ireg_offset_range,
                                 ma_fli->ireg_local_offset);
                ma_indr++;
        }

        n = sizeof(t6_ma_ireg_array2) / (IREG_NUM_ELEM * sizeof(u32));
        for (i = 0; i < n; i++) {
                struct ireg_field *ma_fli = &ma_indr->tp_pio;
                u32 *buff = ma_indr->outbuf;

                ma_fli->ireg_addr = t6_ma_ireg_array2[i][0];
                ma_fli->ireg_data = t6_ma_ireg_array2[i][1];
                ma_fli->ireg_local_offset = t6_ma_ireg_array2[i][2];
                for (j = 0; j < t6_ma_ireg_array2[i][3]; j++) {
                        t4_read_indirect(padap, ma_fli->ireg_addr,
                                         ma_fli->ireg_data, buff, 1,
                                         ma_fli->ireg_local_offset);
                        buff++;
                        ma_fli->ireg_local_offset += 0x20;
                }
                ma_indr++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_ulptx_la(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_ulptx_la *ulptx_la_buff;
        struct cudbg_ver_hdr *ver_hdr;
        u32 i, j;
        int rc;

        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            sizeof(struct cudbg_ver_hdr) +
                            sizeof(struct cudbg_ulptx_la),
                            &temp_buff);
        if (rc)
                return rc;

        ver_hdr = (struct cudbg_ver_hdr *)temp_buff.data;
        ver_hdr->signature = CUDBG_ENTITY_SIGNATURE;
        ver_hdr->revision = CUDBG_ULPTX_LA_REV;
        ver_hdr->size = sizeof(struct cudbg_ulptx_la);

        ulptx_la_buff = (struct cudbg_ulptx_la *)(temp_buff.data +
                                                  sizeof(*ver_hdr));
        for (i = 0; i < CUDBG_NUM_ULPTX; i++) {
                ulptx_la_buff->rdptr[i] = t4_read_reg(padap,
                                                      ULP_TX_LA_RDPTR_0_A +
                                                      0x10 * i);
                ulptx_la_buff->wrptr[i] = t4_read_reg(padap,
                                                      ULP_TX_LA_WRPTR_0_A +
                                                      0x10 * i);
                ulptx_la_buff->rddata[i] = t4_read_reg(padap,
                                                       ULP_TX_LA_RDDATA_0_A +
                                                       0x10 * i);
                for (j = 0; j < CUDBG_NUM_ULPTX_READ; j++)
                        ulptx_la_buff->rd_data[i][j] =
                                t4_read_reg(padap,
                                            ULP_TX_LA_RDDATA_0_A + 0x10 * i);
        }

        for (i = 0; i < CUDBG_NUM_ULPTX_ASIC_READ; i++) {
                t4_write_reg(padap, ULP_TX_ASIC_DEBUG_CTRL_A, 0x1);
                ulptx_la_buff->rdptr_asic[i] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_CTRL_A);
                ulptx_la_buff->rddata_asic[i][0] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_0_A);
                ulptx_la_buff->rddata_asic[i][1] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_1_A);
                ulptx_la_buff->rddata_asic[i][2] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_2_A);
                ulptx_la_buff->rddata_asic[i][3] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_3_A);
                ulptx_la_buff->rddata_asic[i][4] =
                                t4_read_reg(padap, ULP_TX_ASIC_DEBUG_4_A);
                ulptx_la_buff->rddata_asic[i][5] =
                                t4_read_reg(padap, PM_RX_BASE_ADDR);
        }

        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_up_cim_indirect(struct cudbg_init *pdbg_init,
                                  struct cudbg_buffer *dbg_buff,
                                  struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        u32 local_offset, local_range;
        struct ireg_buf *up_cim;
        u32 size, j, iter;
        u32 instance = 0;
        int i, rc, n;

        if (is_t5(padap->params.chip))
                n = sizeof(t5_up_cim_reg_array) /
                    ((IREG_NUM_ELEM + 1) * sizeof(u32));
        else if (is_t6(padap->params.chip))
                n = sizeof(t6_up_cim_reg_array) /
                    ((IREG_NUM_ELEM + 1) * sizeof(u32));
        else
                return CUDBG_STATUS_NOT_IMPLEMENTED;

        size = sizeof(struct ireg_buf) * n;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        up_cim = (struct ireg_buf *)temp_buff.data;
        for (i = 0; i < n; i++) {
                struct ireg_field *up_cim_reg = &up_cim->tp_pio;
                u32 *buff = up_cim->outbuf;

                if (is_t5(padap->params.chip)) {
                        up_cim_reg->ireg_addr = t5_up_cim_reg_array[i][0];
                        up_cim_reg->ireg_data = t5_up_cim_reg_array[i][1];
                        up_cim_reg->ireg_local_offset =
                                                t5_up_cim_reg_array[i][2];
                        up_cim_reg->ireg_offset_range =
                                                t5_up_cim_reg_array[i][3];
                        instance = t5_up_cim_reg_array[i][4];
                } else if (is_t6(padap->params.chip)) {
                        up_cim_reg->ireg_addr = t6_up_cim_reg_array[i][0];
                        up_cim_reg->ireg_data = t6_up_cim_reg_array[i][1];
                        up_cim_reg->ireg_local_offset =
                                                t6_up_cim_reg_array[i][2];
                        up_cim_reg->ireg_offset_range =
                                                t6_up_cim_reg_array[i][3];
                        instance = t6_up_cim_reg_array[i][4];
                }

                switch (instance) {
                case NUM_CIM_CTL_TSCH_CHANNEL_INSTANCES:
                        iter = up_cim_reg->ireg_offset_range;
                        local_offset = 0x120;
                        local_range = 1;
                        break;
                case NUM_CIM_CTL_TSCH_CHANNEL_TSCH_CLASS_INSTANCES:
                        iter = up_cim_reg->ireg_offset_range;
                        local_offset = 0x10;
                        local_range = 1;
                        break;
                default:
                        iter = 1;
                        local_offset = 0;
                        local_range = up_cim_reg->ireg_offset_range;
                        break;
                }

                for (j = 0; j < iter; j++, buff++) {
                        rc = t4_cim_read(padap,
                                         up_cim_reg->ireg_local_offset +
                                         (j * local_offset), local_range, buff);
                        if (rc) {
                                cudbg_put_buff(pdbg_init, &temp_buff);
                                return rc;
                        }
                }
                up_cim++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_pbt_tables(struct cudbg_init *pdbg_init,
                             struct cudbg_buffer *dbg_buff,
                             struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_pbt_tables *pbt;
        int i, rc;
        u32 addr;

        rc = cudbg_get_buff(pdbg_init, dbg_buff,
                            sizeof(struct cudbg_pbt_tables),
                            &temp_buff);
        if (rc)
                return rc;

        pbt = (struct cudbg_pbt_tables *)temp_buff.data;
        /* PBT dynamic entries */
        addr = CUDBG_CHAC_PBT_ADDR;
        for (i = 0; i < CUDBG_PBT_DYNAMIC_ENTRIES; i++) {
                rc = t4_cim_read(padap, addr + (i * 4), 1,
                                 &pbt->pbt_dynamic[i]);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }

        /* PBT static entries */
        /* static entries start when bit 6 is set */
        addr = CUDBG_CHAC_PBT_ADDR + (1 << 6);
        for (i = 0; i < CUDBG_PBT_STATIC_ENTRIES; i++) {
                rc = t4_cim_read(padap, addr + (i * 4), 1,
                                 &pbt->pbt_static[i]);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }

        /* LRF entries */
        addr = CUDBG_CHAC_PBT_LRF;
        for (i = 0; i < CUDBG_LRF_ENTRIES; i++) {
                rc = t4_cim_read(padap, addr + (i * 4), 1,
                                 &pbt->lrf_table[i]);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }

        /* PBT data entries */
        addr = CUDBG_CHAC_PBT_DATA;
        for (i = 0; i < CUDBG_PBT_DATA_ENTRIES; i++) {
                rc = t4_cim_read(padap, addr + (i * 4), 1,
                                 &pbt->pbt_data[i]);
                if (rc) {
                        cudbg_err->sys_err = rc;
                        cudbg_put_buff(pdbg_init, &temp_buff);
                        return rc;
                }
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_mbox_log(struct cudbg_init *pdbg_init,
                           struct cudbg_buffer *dbg_buff,
                           struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_mbox_log *mboxlog = NULL;
        struct cudbg_buffer temp_buff = { 0 };
        struct mbox_cmd_log *log = NULL;
        struct mbox_cmd *entry;
        unsigned int entry_idx;
        u16 mbox_cmds;
        int i, k, rc;
        u64 flit;
        u32 size;

        log = padap->mbox_log;
        mbox_cmds = padap->mbox_log->size;
        size = sizeof(struct cudbg_mbox_log) * mbox_cmds;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        mboxlog = (struct cudbg_mbox_log *)temp_buff.data;
        for (k = 0; k < mbox_cmds; k++) {
                entry_idx = log->cursor + k;
                if (entry_idx >= log->size)
                        entry_idx -= log->size;

                entry = mbox_cmd_log_entry(log, entry_idx);
                /* skip over unused entries */
                if (entry->timestamp == 0)
                        continue;

                memcpy(&mboxlog->entry, entry, sizeof(struct mbox_cmd));
                for (i = 0; i < MBOX_LEN / 8; i++) {
                        flit = entry->cmd[i];
                        mboxlog->hi[i] = (u32)(flit >> 32);
                        mboxlog->lo[i] = (u32)flit;
                }
                mboxlog++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

int cudbg_collect_hma_indirect(struct cudbg_init *pdbg_init,
                               struct cudbg_buffer *dbg_buff,
                               struct cudbg_error *cudbg_err)
{
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct ireg_buf *hma_indr;
        int i, rc, n;
        u32 size;

        if (CHELSIO_CHIP_VERSION(padap->params.chip) < CHELSIO_T6)
                return CUDBG_STATUS_ENTITY_NOT_FOUND;

        n = sizeof(t6_hma_ireg_array) / (IREG_NUM_ELEM * sizeof(u32));
        size = sizeof(struct ireg_buf) * n;
        rc = cudbg_get_buff(pdbg_init, dbg_buff, size, &temp_buff);
        if (rc)
                return rc;

        hma_indr = (struct ireg_buf *)temp_buff.data;
        for (i = 0; i < n; i++) {
                struct ireg_field *hma_fli = &hma_indr->tp_pio;
                u32 *buff = hma_indr->outbuf;

                hma_fli->ireg_addr = t6_hma_ireg_array[i][0];
                hma_fli->ireg_data = t6_hma_ireg_array[i][1];
                hma_fli->ireg_local_offset = t6_hma_ireg_array[i][2];
                hma_fli->ireg_offset_range = t6_hma_ireg_array[i][3];
                t4_read_indirect(padap, hma_fli->ireg_addr, hma_fli->ireg_data,
                                 buff, hma_fli->ireg_offset_range,
                                 hma_fli->ireg_local_offset);
                hma_indr++;
        }
        return cudbg_write_and_release_buff(pdbg_init, &temp_buff, dbg_buff);
}

void cudbg_fill_qdesc_num_and_size(const struct adapter *padap,
                                   u32 *num, u32 *size)
{
        u32 tot_entries = 0, tot_size = 0;

        /* NIC TXQ, RXQ, FLQ, and CTRLQ */
        tot_entries += MAX_ETH_QSETS * 3;
        tot_entries += MAX_CTRL_QUEUES;

        tot_size += MAX_ETH_QSETS * MAX_TXQ_ENTRIES * MAX_TXQ_DESC_SIZE;
        tot_size += MAX_ETH_QSETS * MAX_RSPQ_ENTRIES * MAX_RXQ_DESC_SIZE;
        tot_size += MAX_ETH_QSETS * MAX_RX_BUFFERS * MAX_FL_DESC_SIZE;
        tot_size += MAX_CTRL_QUEUES * MAX_CTRL_TXQ_ENTRIES *
                    MAX_CTRL_TXQ_DESC_SIZE;

        /* FW_EVTQ and INTRQ */
        tot_entries += INGQ_EXTRAS;
        tot_size += INGQ_EXTRAS * MAX_RSPQ_ENTRIES * MAX_RXQ_DESC_SIZE;

        /* PTP_TXQ */
        tot_entries += 1;
        tot_size += MAX_TXQ_ENTRIES * MAX_TXQ_DESC_SIZE;

        /* ULD TXQ, RXQ, and FLQ */
        tot_entries += CXGB4_TX_MAX * MAX_OFLD_QSETS;
        tot_entries += CXGB4_ULD_MAX * MAX_ULD_QSETS * 2;

        tot_size += CXGB4_TX_MAX * MAX_OFLD_QSETS * MAX_TXQ_ENTRIES *
                    MAX_TXQ_DESC_SIZE;
        tot_size += CXGB4_ULD_MAX * MAX_ULD_QSETS * MAX_RSPQ_ENTRIES *
                    MAX_RXQ_DESC_SIZE;
        tot_size += CXGB4_ULD_MAX * MAX_ULD_QSETS * MAX_RX_BUFFERS *
                    MAX_FL_DESC_SIZE;

        /* ULD CIQ */
        tot_entries += CXGB4_ULD_MAX * MAX_ULD_QSETS;
        tot_size += CXGB4_ULD_MAX * MAX_ULD_QSETS * SGE_MAX_IQ_SIZE *
                    MAX_RXQ_DESC_SIZE;

        tot_size += sizeof(struct cudbg_ver_hdr) +
                    sizeof(struct cudbg_qdesc_info) +
                    sizeof(struct cudbg_qdesc_entry) * tot_entries;

        if (num)
                *num = tot_entries;

        if (size)
                *size = tot_size;
}

int cudbg_collect_qdesc(struct cudbg_init *pdbg_init,
                        struct cudbg_buffer *dbg_buff,
                        struct cudbg_error *cudbg_err)
{
        u32 num_queues = 0, tot_entries = 0, size = 0;
        struct adapter *padap = pdbg_init->adap;
        struct cudbg_buffer temp_buff = { 0 };
        struct cudbg_qdesc_entry *qdesc_entry;
        struct cudbg_qdesc_info *qdesc_info;
        struct cudbg_ver_hdr *ver_hdr;
        struct sge *s = &padap->sge;
        u32 i, j, cur_off, tot_len;
        u8 *data;
        int rc;

        cudbg_fill_qdesc_num_and_size(padap, &tot_entries, &size);
        size = min_t(u32, size, CUDBG_DUMP_BUFF_SIZE);
        tot_len = size;
        data = kvzalloc(size, GFP_KERNEL);
        if (!data)
                return -ENOMEM;

        ver_hdr = (struct cudbg_ver_hdr *)data;
        ver_hdr->signature = CUDBG_ENTITY_SIGNATURE;
        ver_hdr->revision = CUDBG_QDESC_REV;
        ver_hdr->size = sizeof(struct cudbg_qdesc_info);
        size -= sizeof(*ver_hdr);

        qdesc_info = (struct cudbg_qdesc_info *)(data +
                                                 sizeof(*ver_hdr));
        size -= sizeof(*qdesc_info);
        qdesc_entry = (struct cudbg_qdesc_entry *)qdesc_info->data;

#define QDESC_GET(q, desc, type, label) do { \
        if (size <= 0) { \
                goto label; \
        } \
        if (desc) { \
                cudbg_fill_qdesc_##q(q, type, qdesc_entry); \
                size -= sizeof(*qdesc_entry) + qdesc_entry->data_size; \
                num_queues++; \
                qdesc_entry = cudbg_next_qdesc(qdesc_entry); \
        } \
} while (0)

#define QDESC_GET_TXQ(q, type, label) do { \
        struct sge_txq *txq = (struct sge_txq *)q; \
        QDESC_GET(txq, txq->desc, type, label); \
} while (0)

#define QDESC_GET_RXQ(q, type, label) do { \
        struct sge_rspq *rxq = (struct sge_rspq *)q; \