bnxt.c

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FILE_LICENCE ( GPL2_ONLY );

#include <mii.h>
#include <stdio.h>
#include <errno.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/pci.h>
#include <ipxe/iobuf.h>
#include <ipxe/timer.h>
#include <ipxe/malloc.h>
#include <ipxe/if_ether.h>
#include <ipxe/ethernet.h>
#include <ipxe/netdevice.h>
#include "bnxt.h"
#include "bnxt_dbg.h"

static void bnxt_service_cq ( struct net_device *dev );
static void bnxt_tx_complete ( struct net_device *dev, u16 hw_idx );
static void bnxt_adv_cq_index ( struct bnxt *bp, u16 cnt );
static void bnxt_adv_cq_index ( struct bnxt *bp, u16 cnt );
static int bnxt_rx_complete ( struct net_device *dev, struct rx_pkt_cmpl *rx );
void bnxt_link_evt ( struct bnxt *bp, struct hwrm_async_event_cmpl *evt );

static struct pci_device_id bnxt_nics[] = {
        PCI_ROM( 0x14e4, 0x16c0, "14e4-16C0", "14e4-16C0", 0 ),
        PCI_ROM( 0x14e4, 0x16c1, "14e4-16C1", "14e4-16C1", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16c8, "14e4-16C8", "14e4-16C8", 0 ),
        PCI_ROM( 0x14e4, 0x16c9, "14e4-16C9", "14e4-16C9", 0 ),
        PCI_ROM( 0x14e4, 0x16ca, "14e4-16CA", "14e4-16CA", 0 ),
        PCI_ROM( 0x14e4, 0x16cc, "14e4-16CC", "14e4-16CC", 0 ),
        PCI_ROM( 0x14e4, 0x16cd, "14e4-16CD", "14e4-16CD", 0 ),
        PCI_ROM( 0x14e4, 0x16ce, "14e4-16CE", "14e4-16CE", 0 ),
        PCI_ROM( 0x14e4, 0x16cf, "14e4-16CF", "14e4-16CF", 0 ),
        PCI_ROM( 0x14e4, 0x16d0, "14e4-16D0", "14e4-16D0", 0 ),
        PCI_ROM( 0x14e4, 0x16d1, "14e4-16D1", "14e4-16D1", 0 ),
        PCI_ROM( 0x14e4, 0x16d2, "14e4-16D2", "14e4-16D2", 0 ),
        PCI_ROM( 0x14e4, 0x16d4, "14e4-16D4", "14e4-16D4", 0 ),
        PCI_ROM( 0x14e4, 0x16d5, "14e4-16D5", "14e4-16D5", 0 ),
        PCI_ROM( 0x14e4, 0x16d6, "14e4-16D6", "14e4-16D6", 0 ),
        PCI_ROM( 0x14e4, 0x16d7, "14e4-16D7", "14e4-16D7", 0 ),
        PCI_ROM( 0x14e4, 0x16d8, "14e4-16D8", "14e4-16D8", 0 ),
        PCI_ROM( 0x14e4, 0x16d9, "14e4-16D9", "14e4-16D9", 0 ),
        PCI_ROM( 0x14e4, 0x16da, "14e4-16DA", "14e4-16DA", 0 ),
        PCI_ROM( 0x14e4, 0x16db, "14e4-16DB", "14e4-16DB", 0 ),
        PCI_ROM( 0x14e4, 0x16dc, "14e4-16DC", "14e4-16DC", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16de, "14e4-16DE", "14e4-16DE", 0 ),
        PCI_ROM( 0x14e4, 0x16df, "14e4-16DF", "14e4-16DF", 0 ),
        PCI_ROM( 0x14e4, 0x16e0, "14e4-16E0", "14e4-16E0", 0 ),
        PCI_ROM( 0x14e4, 0x16e2, "14e4-16E2", "14e4-16E2", 0 ),
        PCI_ROM( 0x14e4, 0x16e3, "14e4-16E3", "14e4-16E3", 0 ),
        PCI_ROM( 0x14e4, 0x16e4, "14e4-16E4", "14e4-16E4", 0 ),
        PCI_ROM( 0x14e4, 0x16e7, "14e4-16E7", "14e4-16E7", 0 ),
        PCI_ROM( 0x14e4, 0x16e8, "14e4-16E8", "14e4-16E8", 0 ),
        PCI_ROM( 0x14e4, 0x16e9, "14e4-16E9", "14e4-16E9", 0 ),
        PCI_ROM( 0x14e4, 0x16ea, "14e4-16EA", "14e4-16EA", 0 ),
        PCI_ROM( 0x14e4, 0x16eb, "14e4-16EB", "14e4-16EB", 0 ),
        PCI_ROM( 0x14e4, 0x16ec, "14e4-16EC", "14e4-16EC", 0 ),
        PCI_ROM( 0x14e4, 0x16ed, "14e4-16ED", "14e4-16ED", 0 ),
        PCI_ROM( 0x14e4, 0x16ee, "14e4-16EE", "14e4-16EE", 0 ),
        PCI_ROM( 0x14e4, 0x16ef, "14e4-16EF", "14e4-16EF", 0 ),
        PCI_ROM( 0x14e4, 0x16f0, "14e4-16F0", "14e4-16F0", 0 ),
        PCI_ROM( 0x14e4, 0x16f1, "14e4-16F1", "14e4-16F1", 0 ),
        PCI_ROM( 0x14e4, 0x1604, "14e4-1604", "14e4-1604", 0 ),
        PCI_ROM( 0x14e4, 0x1605, "14e4-1605", "14e4-1605", 0 ),
        PCI_ROM( 0x14e4, 0x1606, "14e4-1606", "14e4-1606", 0 ),
        PCI_ROM( 0x14e4, 0x1609, "14e4-1609", "14e4-1609", 0 ),
        PCI_ROM( 0x14e4, 0x1614, "14e4-1614", "14e4-1614", 0 ),
        PCI_ROM( 0x14e4, 0xd802, "14e4-D802", "14e4-D802", 0 ),
        PCI_ROM( 0x14e4, 0xd804, "14e4-D804", "14e4-D804", 0 ),
        PCI_ROM( 0x14e4, 0x1750, "14e4-1750", "14e4-1750", 0 ),
        PCI_ROM( 0x14e4, 0x1802, "14e4-1802", "14e4-1802", 0 ),
        PCI_ROM( 0x14e4, 0x1805, "14e4-1805", "14e4-1805", 0 ),
        PCI_ROM( 0x14e4, 0x1751, "14e4-1751", "14e4-1751", 0 ),
        PCI_ROM( 0x14e4, 0x1801, "14e4-1801", "14e4-1801", 0 ),
        PCI_ROM( 0x14e4, 0x1804, "14e4-1804", "14e4-1804", 0 ),
        PCI_ROM( 0x14e4, 0x1752, "14e4-1752", "14e4-1752", 0 ),
        PCI_ROM( 0x14e4, 0x1800, "14e4-1800", "14e4-1800", 0 ),
        PCI_ROM( 0x14e4, 0x1803, "14e4-1803", "14e4-1803", 0 ),
        PCI_ROM( 0x14e4, 0x1806, "14e4-1806", "14e4-1806", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1807, "14e4-1807", "14e4-1807", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1808, "14e4-1808", "14e4-1808", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1809, "14e4-1809", "14e4-1809", BNXT_FLAG_PCI_VF ),
};

/**
 * Check if Virtual Function
 */
u8 bnxt_is_pci_vf ( struct pci_device *pdev )
{
        if ( FLAG_TEST ( pdev->id->driver_data, BNXT_FLAG_PCI_VF ) ) {
                return 1;
        }
        return 0;
}

static void bnxt_down_pci ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        if ( bp->bar2 ) {
                iounmap ( bp->bar2 );
                bp->bar2 = NULL;
        }
        if ( bp->bar1 ) {
                iounmap ( bp->bar1 );
                bp->bar1 = NULL;
        }
        if ( bp->bar0 ) {
                iounmap ( bp->bar0 );
                bp->bar0 = NULL;
        }
}

static void *bnxt_pci_base ( struct pci_device *pdev, unsigned int reg )
{
        unsigned long reg_base, reg_size;

        reg_base = pci_bar_start ( pdev, reg );
        reg_size = pci_bar_size ( pdev, reg );
        return pci_ioremap ( pdev, reg_base, reg_size );
}

static int bnxt_get_pci_info ( struct bnxt *bp )
{
        u16 cmd_reg = 0;

        DBGP ( "%s\n", __func__ );
        /* Disable Interrupt */
        pci_read_word16 ( bp->pdev, PCI_COMMAND, &bp->cmd_reg );
        cmd_reg = bp->cmd_reg | PCI_COMMAND_INTX_DISABLE;
        pci_write_word ( bp->pdev, PCI_COMMAND, cmd_reg );
        pci_read_word16 ( bp->pdev, PCI_COMMAND, &cmd_reg );

        /* SSVID */
        pci_read_word16 ( bp->pdev,
                        PCI_SUBSYSTEM_VENDOR_ID,
                        &bp->subsystem_vendor );

        /* SSDID */
        pci_read_word16 ( bp->pdev,
                        PCI_SUBSYSTEM_ID,
                        &bp->subsystem_device );

        /* Function Number */
        pci_read_byte ( bp->pdev,
                        PCICFG_ME_REGISTER,
                        &bp->pf_num );

        /* Get Bar Address */
        bp->bar0 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_0 );
        bp->bar1 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_2 );
        bp->bar2 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_4 );

        /* Virtual function */
        bp->vf = bnxt_is_pci_vf ( bp->pdev );

        dbg_pci ( bp, __func__, cmd_reg );
        return STATUS_SUCCESS;
}

static int bnxt_get_device_address ( struct bnxt *bp )
{
        struct net_device *dev = bp->dev;

        DBGP ( "%s\n", __func__ );
        memcpy ( &dev->hw_addr[0], ( char * )&bp->mac_addr[0], ETH_ALEN );
        if ( !is_valid_ether_addr ( &dev->hw_addr[0] ) ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return -EINVAL;
        }

        return STATUS_SUCCESS;
}

static void bnxt_set_link ( struct bnxt *bp )
{
        if ( bp->link_status == STATUS_LINK_ACTIVE )
                netdev_link_up ( bp->dev );
        else
                netdev_link_down ( bp->dev );
}

static void thor_db ( struct bnxt *bp, u32 idx, u32 xid, u32 flag )
{
        void *off;
        u64  val;

        if ( bp->vf )
                off = ( void * ) ( bp->bar1 + DB_OFFSET_VF );
        else
                off = ( void * ) ( bp->bar1 + DB_OFFSET_PF );

        val = ( ( u64 )DBC_MSG_XID ( xid, flag ) << 32 ) |
                ( u64 )DBC_MSG_IDX ( idx );
        write64 ( val, off );
}

static void bnxt_db_nq ( struct bnxt *bp )
{
        if ( bp->thor )
                thor_db ( bp, ( u32 )bp->nq.cons_id,
                         ( u32 )bp->nq_ring_id, DBC_DBC_TYPE_NQ_ARM );
        else
                write32 ( CMPL_DOORBELL_KEY_CMPL, ( bp->bar1 + 0 ) );
}

static void bnxt_db_cq ( struct bnxt *bp )
{
        if ( bp->thor )
                thor_db ( bp, ( u32 )bp->cq.cons_id,
                         ( u32 )bp->cq_ring_id, DBC_DBC_TYPE_CQ_ARMALL );
        else
                write32 ( CQ_DOORBELL_KEY_IDX ( bp->cq.cons_id ),
                        ( bp->bar1 + 0 ) );
}

static void bnxt_db_rx ( struct bnxt *bp, u32 idx )
{
        if ( bp->thor )
                thor_db ( bp, idx, ( u32 )bp->rx_ring_id, DBC_DBC_TYPE_SRQ );
        else
                write32 ( RX_DOORBELL_KEY_RX | idx, ( bp->bar1 + 0 ) );
}

static void bnxt_db_tx ( struct bnxt *bp, u32 idx )
{
        if ( bp->thor )
                thor_db ( bp, idx, ( u32 )bp->tx_ring_id, DBC_DBC_TYPE_SQ );
        else
                write32 ( ( u32 ) ( TX_DOORBELL_KEY_TX | idx ),
                        ( bp->bar1 + 0 ) );
}

void bnxt_add_vlan ( struct io_buffer *iob, u16 vlan )
{
        char *src = ( char * )iob->data;
        u16 len = iob_len ( iob );

        memmove ( ( char * )&src[MAC_HDR_SIZE + VLAN_HDR_SIZE],
                         ( char * )&src[MAC_HDR_SIZE],
                         ( len - MAC_HDR_SIZE ) );

        * ( u16 * ) ( &src[MAC_HDR_SIZE] ) = BYTE_SWAP_S ( ETHERTYPE_VLAN );
        * ( u16 * ) ( &src[MAC_HDR_SIZE + 2] ) = BYTE_SWAP_S ( vlan );
        iob_put ( iob, VLAN_HDR_SIZE );
}

static u16 bnxt_get_pkt_vlan ( char *src )
{
        if ( * ( ( u16 * )&src[MAC_HDR_SIZE] ) == BYTE_SWAP_S ( ETHERTYPE_VLAN ) )
                return BYTE_SWAP_S ( * ( ( u16 * )&src[MAC_HDR_SIZE + 2] ) );
        return 0;
}

int bnxt_vlan_drop ( struct bnxt *bp, u16 rx_vlan )
{
        if ( rx_vlan ) {
                if ( bp->vlan_tx ) {
                        if ( rx_vlan == bp->vlan_tx )
                                return 0;
                } else {
                        if ( rx_vlan == bp->vlan_id )
                                return 0;
                        if ( rx_vlan && !bp->vlan_id )
                                return 0;
                }
        } else {
                if ( !bp->vlan_tx && !bp->vlan_id )
                        return 0;
        }

        return 1;
}

static inline u32 bnxt_tx_avail ( struct bnxt *bp )
{
        u32 avail;
        u32 use;

        barrier (  );
        avail = TX_AVAIL ( bp->tx.ring_cnt );
        use = TX_IN_USE ( bp->tx.prod_id, bp->tx.cons_id, bp->tx.ring_cnt );
        dbg_tx_avail ( bp, avail, use );
        return ( avail-use );
}

void bnxt_set_txq ( struct bnxt *bp, int entry, dma_addr_t mapping, int len )
{
        struct tx_bd_short *prod_bd;

        prod_bd = ( struct tx_bd_short * )BD_NOW ( bp->tx.bd_virt,
                        entry, sizeof ( struct tx_bd_short ) );
        if ( len < 512 )
                prod_bd->flags_type = TX_BD_SHORT_FLAGS_LHINT_LT512;
        else if ( len < 1024 )
                prod_bd->flags_type = TX_BD_SHORT_FLAGS_LHINT_LT1K;
        else if ( len < 2048 )
                prod_bd->flags_type = TX_BD_SHORT_FLAGS_LHINT_LT2K;
        else
                prod_bd->flags_type = TX_BD_SHORT_FLAGS_LHINT_GTE2K;
        prod_bd->flags_type |= TX_BD_FLAGS;
        prod_bd->dma.addr = mapping;
        prod_bd->len      = len;
        prod_bd->opaque   = ( u32 )entry;
}

static void bnxt_tx_complete ( struct net_device *dev, u16 hw_idx )
{
        struct bnxt *bp = dev->priv;
        struct io_buffer *iob;

        iob = bp->tx.iob[hw_idx];
        dbg_tx_done ( iob->data, iob_len ( iob ), hw_idx );
        netdev_tx_complete ( dev, iob );
        bp->tx.cons_id = NEXT_IDX ( hw_idx, bp->tx.ring_cnt );
        bp->tx.cnt++;
        dump_tx_stat ( bp );
}

int bnxt_free_rx_iob ( struct bnxt *bp )
{
        unsigned int i;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RX_IOB ) ) )
                return STATUS_SUCCESS;

        for ( i = 0; i < bp->rx.buf_cnt; i++ ) {
                if ( bp->rx.iob[i] ) {
                        free_iob ( bp->rx.iob[i] );
                        bp->rx.iob[i] = NULL;
                }
        }
        bp->rx.iob_cnt = 0;

        FLAG_RESET ( bp->flag_hwrm, VALID_RX_IOB );
        return STATUS_SUCCESS;
}

static void bnxt_set_rx_desc ( u8 *buf, struct io_buffer *iob,
                                u16 cid, u32 idx )
{
        struct rx_prod_pkt_bd *desc;
        u16 off = cid * sizeof ( struct rx_prod_pkt_bd );

        desc = ( struct rx_prod_pkt_bd * )&buf[off];
        desc->flags_type = RX_PROD_PKT_BD_TYPE_RX_PROD_PKT;
        desc->len        = MAX_ETHERNET_PACKET_BUFFER_SIZE;
        desc->opaque     = idx;
        desc->dma.addr   = virt_to_bus ( iob->data );
}

static int bnxt_alloc_rx_iob ( struct bnxt *bp, u16 cons_id, u16 iob_idx )
{
        struct io_buffer *iob;

        iob = alloc_iob ( BNXT_RX_STD_DMA_SZ );
        if ( !iob ) {
                DBGP ( "- %s (  ): alloc_iob Failed\n", __func__ );
                return -ENOMEM;
        }

        dbg_alloc_rx_iob ( iob, iob_idx, cons_id );
        bnxt_set_rx_desc ( ( u8 * )bp->rx.bd_virt, iob, cons_id,
                        ( u32 ) iob_idx );
        bp->rx.iob[iob_idx] = iob;
        return 0;
}

int bnxt_post_rx_buffers ( struct bnxt *bp )
{
        u16 cons_id = ( bp->rx.cons_id % bp->rx.ring_cnt );
        u16 iob_idx;

        while ( bp->rx.iob_cnt < bp->rx.buf_cnt ) {
                iob_idx = ( cons_id % bp->rx.buf_cnt );
                if ( !bp->rx.iob[iob_idx] ) {
                        if ( bnxt_alloc_rx_iob ( bp, cons_id, iob_idx ) < 0 ) {
                                dbg_alloc_rx_iob_fail ( iob_idx, cons_id );
                                break;
                        }
                }
                cons_id = NEXT_IDX ( cons_id, bp->rx.ring_cnt );
                bp->rx.iob_cnt++;
        }

        if ( cons_id != bp->rx.cons_id ) {
                dbg_rx_cid ( bp->rx.cons_id, cons_id );
                bp->rx.cons_id = cons_id;
                bnxt_db_rx ( bp, ( u32 )cons_id );
        }

        FLAG_SET ( bp->flag_hwrm, VALID_RX_IOB );
        return STATUS_SUCCESS;
}

u8 bnxt_rx_drop ( struct bnxt *bp, struct io_buffer *iob,
        struct rx_pkt_cmpl_hi *rx_cmp_hi, u16 rx_len )
{
        u8  *rx_buf = ( u8 * )iob->data;
        u16 err_flags, rx_vlan;
        u8  ignore_chksum_err = 0;
        int i;

        err_flags = rx_cmp_hi->errors_v2 >> RX_PKT_CMPL_ERRORS_BUFFER_ERROR_SFT;
        if ( rx_cmp_hi->errors_v2 == 0x20 || rx_cmp_hi->errors_v2 == 0x21 )
                ignore_chksum_err = 1;

        if ( err_flags && !ignore_chksum_err ) {
                bp->rx.drop_err++;
                return 1;
        }

        for ( i = 0; i < 6; i++ ) {
                if ( rx_buf[6 + i] != bp->mac_addr[i] )
                        break;
        }

        /* Drop the loopback packets */
        if ( i == 6 ) {
                bp->rx.drop_lb++;
                return 2;
        }

        /* Get VLAN ID from RX completion ring */
        if ( rx_cmp_hi->flags2 & RX_PKT_CMPL_FLAGS2_META_FORMAT_VLAN )
                rx_vlan = ( rx_cmp_hi->metadata &
                                RX_PKT_CMPL_METADATA_VID_MASK );
        else
                rx_vlan = 0;

        dbg_rx_vlan ( bp, rx_cmp_hi->metadata, rx_cmp_hi->flags2, rx_vlan );
        if ( bnxt_vlan_drop ( bp, rx_vlan ) ) {
                bp->rx.drop_vlan++;
                return 3;
        }
        iob_put ( iob, rx_len );

        if ( rx_vlan )
                bnxt_add_vlan ( iob, rx_vlan );

        bp->rx.good++;
        return 0;
}

static void bnxt_adv_cq_index ( struct bnxt *bp, u16 cnt )
{
        u16 cons_id;

        cons_id = bp->cq.cons_id + cnt;
        if ( cons_id >= MAX_CQ_DESC_CNT ) {
                /* Toggle completion bit when the ring wraps. */
                bp->cq.completion_bit ^= 1;
                cons_id = cons_id - MAX_CQ_DESC_CNT;
        }
        bp->cq.cons_id = cons_id;
}

void bnxt_rx_process ( struct net_device *dev, struct bnxt *bp,
        struct rx_pkt_cmpl *rx_cmp, struct rx_pkt_cmpl_hi *rx_cmp_hi )
{
        u32 desc_idx = rx_cmp->opaque;
        struct io_buffer *iob = bp->rx.iob[desc_idx];
        u8 drop;

        dump_rx_bd ( rx_cmp, rx_cmp_hi, desc_idx );
        assert ( !iob );
        drop = bnxt_rx_drop ( bp, iob, rx_cmp_hi, rx_cmp->len );
        dbg_rxp ( iob->data, rx_cmp->len, drop );
        if ( drop )
                netdev_rx_err ( dev, iob, -EINVAL );
        else
                netdev_rx ( dev, iob );

        bp->rx.cnt++;
        bp->rx.iob[desc_idx] = NULL;
        bp->rx.iob_cnt--;
        bnxt_post_rx_buffers ( bp );
        bnxt_adv_cq_index ( bp, 2 ); /* Rx completion is 2 entries. */
        dbg_rx_stat ( bp );
}

static int bnxt_rx_complete ( struct net_device *dev,
                struct rx_pkt_cmpl *rx_cmp )
{
        struct bnxt *bp = dev->priv;
        struct rx_pkt_cmpl_hi *rx_cmp_hi;
        u8  cmpl_bit = bp->cq.completion_bit;

        if ( bp->cq.cons_id == ( bp->cq.ring_cnt - 1 ) ) {
                rx_cmp_hi = ( struct rx_pkt_cmpl_hi * )bp->cq.bd_virt;
                cmpl_bit ^= 0x1; /* Ring has wrapped. */
        } else
                rx_cmp_hi = ( struct rx_pkt_cmpl_hi * ) ( rx_cmp+1 );

        if ( ! ( ( rx_cmp_hi->errors_v2 & RX_PKT_CMPL_V2 ) ^ cmpl_bit ) ) {
                bnxt_rx_process ( dev, bp, rx_cmp, rx_cmp_hi );
                return SERVICE_NEXT_CQ_BD;
        } else
                return NO_MORE_CQ_BD_TO_SERVICE;
}

void bnxt_mm_init ( struct bnxt *bp, const char *func )
{
        DBGP ( "%s\n", __func__ );
        memset ( bp->hwrm_addr_req,  0, REQ_BUFFER_SIZE );
        memset ( bp->hwrm_addr_resp, 0, RESP_BUFFER_SIZE );
        memset ( bp->hwrm_addr_dma,  0, DMA_BUFFER_SIZE );
        bp->req_addr_mapping  = virt_to_bus ( bp->hwrm_addr_req );
        bp->resp_addr_mapping = virt_to_bus ( bp->hwrm_addr_resp );
        bp->dma_addr_mapping  = virt_to_bus ( bp->hwrm_addr_dma );
        bp->link_status = STATUS_LINK_DOWN;
        bp->wait_link_timeout = LINK_DEFAULT_TIMEOUT;
        bp->mtu = MAX_ETHERNET_PACKET_BUFFER_SIZE;
        bp->hwrm_max_req_len  = HWRM_MAX_REQ_LEN;
        bp->nq.ring_cnt           = MAX_NQ_DESC_CNT;
        bp->cq.ring_cnt           = MAX_CQ_DESC_CNT;
        bp->tx.ring_cnt           = MAX_TX_DESC_CNT;
        bp->rx.ring_cnt           = MAX_RX_DESC_CNT;
        bp->rx.buf_cnt            = NUM_RX_BUFFERS;
        dbg_mem ( bp, func );
}

void bnxt_mm_nic ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        memset ( bp->cq.bd_virt, 0, CQ_RING_BUFFER_SIZE );
        memset ( bp->tx.bd_virt, 0, TX_RING_BUFFER_SIZE );
        memset ( bp->rx.bd_virt, 0, RX_RING_BUFFER_SIZE );
        memset ( bp->nq.bd_virt, 0, NQ_RING_BUFFER_SIZE );
        bp->nq.cons_id          = 0;
        bp->nq.completion_bit   = 0x1;
        bp->cq.cons_id          = 0;
        bp->cq.completion_bit   = 0x1;
        bp->tx.prod_id          = 0;
        bp->tx.cons_id          = 0;
        bp->rx.cons_id          = 0;
        bp->rx.iob_cnt          = 0;

        bp->link_status         = STATUS_LINK_DOWN;
        bp->wait_link_timeout   = LINK_DEFAULT_TIMEOUT;
        bp->mtu                 = MAX_ETHERNET_PACKET_BUFFER_SIZE;
        bp->hwrm_max_req_len    = HWRM_MAX_REQ_LEN;
        bp->nq.ring_cnt         = MAX_NQ_DESC_CNT;
        bp->cq.ring_cnt         = MAX_CQ_DESC_CNT;
        bp->tx.ring_cnt         = MAX_TX_DESC_CNT;
        bp->rx.ring_cnt         = MAX_RX_DESC_CNT;
        bp->rx.buf_cnt          = NUM_RX_BUFFERS;
}

void bnxt_free_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        if ( bp->nq.bd_virt ) {
                free_phys ( bp->nq.bd_virt, NQ_RING_BUFFER_SIZE );
                bp->nq.bd_virt = NULL;
        }

        if ( bp->cq.bd_virt ) {
                free_phys ( bp->cq.bd_virt, CQ_RING_BUFFER_SIZE );
                bp->cq.bd_virt = NULL;
        }

        if ( bp->rx.bd_virt ) {
                free_phys ( bp->rx.bd_virt, RX_RING_BUFFER_SIZE );
                bp->rx.bd_virt = NULL;
        }

        if ( bp->tx.bd_virt ) {
                free_phys ( bp->tx.bd_virt, TX_RING_BUFFER_SIZE );
                bp->tx.bd_virt = NULL;
        }

        if ( bp->hwrm_addr_dma ) {
                free_phys ( bp->hwrm_addr_dma, DMA_BUFFER_SIZE );
                bp->dma_addr_mapping = 0;
                bp->hwrm_addr_dma = NULL;
        }

        if ( bp->hwrm_addr_resp ) {
                free_phys ( bp->hwrm_addr_resp, RESP_BUFFER_SIZE );
                bp->resp_addr_mapping = 0;
                bp->hwrm_addr_resp = NULL;
        }

        if ( bp->hwrm_addr_req ) {
                free_phys ( bp->hwrm_addr_req, REQ_BUFFER_SIZE );
                bp->req_addr_mapping = 0;
                bp->hwrm_addr_req = NULL;
        }
        DBGP ( "- %s (  ): - Done\n", __func__ );
}

int bnxt_alloc_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        bp->hwrm_addr_req  = malloc_phys ( REQ_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        bp->hwrm_addr_resp = malloc_phys ( RESP_BUFFER_SIZE,
                                           BNXT_DMA_ALIGNMENT );
        bp->hwrm_addr_dma  = malloc_phys ( DMA_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        bp->tx.bd_virt = malloc_phys ( TX_RING_BUFFER_SIZE, DMA_ALIGN_4K );
        bp->rx.bd_virt = malloc_phys ( RX_RING_BUFFER_SIZE, DMA_ALIGN_4K );
        bp->cq.bd_virt = malloc_phys ( CQ_RING_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        bp->nq.bd_virt = malloc_phys ( NQ_RING_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        test_if ( bp->hwrm_addr_req &&
                bp->hwrm_addr_resp &&
                bp->hwrm_addr_dma &&
                bp->tx.bd_virt &&
                bp->rx.bd_virt &&
                bp->nq.bd_virt &&
                bp->cq.bd_virt ) {
                bnxt_mm_init ( bp, __func__ );
                return STATUS_SUCCESS;
        }

        DBGP ( "- %s (  ): Failed\n", __func__ );
        bnxt_free_mem ( bp );
        return -ENOMEM;
}

static void hwrm_init ( struct bnxt *bp, struct input *req, u16 cmd, u16 len )
{
        memset ( req, 0, len );
        req->req_type  = cmd;
        req->cmpl_ring = ( u16 )HWRM_NA_SIGNATURE;
        req->target_id = ( u16 )HWRM_NA_SIGNATURE;
        req->resp_addr = bp->resp_addr_mapping;
        req->seq_id    = bp->seq_id++;
}

static void hwrm_write_req ( struct bnxt *bp, void *req, u32 cnt )
{
        u32 i = 0;

        for ( i = 0; i < cnt; i++ ) {
                write32 ( ( ( u32 * )req )[i],
                         ( bp->bar0 + GRC_COM_CHAN_BASE + ( i * 4 ) ) );
        }
        write32 ( 0x1, ( bp->bar0 + GRC_COM_CHAN_BASE + GRC_COM_CHAN_TRIG ) );
}

static void short_hwrm_cmd_req ( struct bnxt *bp, u16 len )
{
        struct hwrm_short_input sreq;

        memset ( &sreq, 0, sizeof ( struct hwrm_short_input ) );
        sreq.req_type  = ( u16 ) ( ( struct input * )bp->hwrm_addr_req )->req_type;
        sreq.signature = SHORT_REQ_SIGNATURE_SHORT_CMD;
        sreq.size      = len;
        sreq.req_addr  = bp->req_addr_mapping;
        mdelay ( 100 );
        dbg_short_cmd ( ( u8 * )&sreq, __func__,
                        sizeof ( struct hwrm_short_input ) );
        hwrm_write_req ( bp, &sreq, sizeof ( struct hwrm_short_input ) / 4 );
}

static int wait_resp ( struct bnxt *bp, u32 tmo, u16 len, const char *func )
{
        struct input *req = ( struct input * )bp->hwrm_addr_req;
        struct output *resp = ( struct output * )bp->hwrm_addr_resp;
        u8  *ptr = ( u8 * )resp;
        u32 idx;
        u32 wait_cnt = HWRM_CMD_DEFAULT_MULTIPLAYER ( ( u32 )tmo );
        u16 resp_len = 0;
        u16 ret = STATUS_TIMEOUT;

        if ( len > bp->hwrm_max_req_len )
                short_hwrm_cmd_req ( bp, len );
        else
                hwrm_write_req ( bp, req, ( u32 ) ( len / 4 ) );

        for ( idx = 0; idx < wait_cnt; idx++ ) {
                resp_len = resp->resp_len;
                test_if ( resp->seq_id == req->seq_id &&
                        resp->req_type == req->req_type &&
                        ptr[resp_len - 1] == 1 ) {
                        bp->last_resp_code = resp->error_code;
                        ret = resp->error_code;
                        break;
                }
                udelay ( HWRM_CMD_POLL_WAIT_TIME );
        }
        dbg_hw_cmd ( bp, func, len, resp_len, tmo, ret );
        return ( int )ret;
}

static int bnxt_hwrm_ver_get ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_ver_get_input );
        struct hwrm_ver_get_input *req;
        struct hwrm_ver_get_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_ver_get_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_ver_get_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_VER_GET, cmd_len );
        req->hwrm_intf_maj = HWRM_VERSION_MAJOR;
        req->hwrm_intf_min = HWRM_VERSION_MINOR;
        req->hwrm_intf_upd = HWRM_VERSION_UPDATE;
        rc = wait_resp ( bp, HWRM_CMD_DEFAULT_TIMEOUT, cmd_len, __func__ );
        if ( rc )
                return STATUS_FAILURE;

        bp->hwrm_spec_code =
                resp->hwrm_intf_maj_8b << 16 |
                resp->hwrm_intf_min_8b << 8 |
                resp->hwrm_intf_upd_8b;
        bp->hwrm_cmd_timeout = ( u32 )resp->def_req_timeout;
        if ( !bp->hwrm_cmd_timeout )
                bp->hwrm_cmd_timeout = ( u32 )HWRM_CMD_DEFAULT_TIMEOUT;
        if ( resp->hwrm_intf_maj_8b >= 1 )
                bp->hwrm_max_req_len = resp->max_req_win_len;
        bp->chip_id =
                resp->chip_rev << 24 |
                resp->chip_metal << 16 |
                resp->chip_bond_id << 8 |
                resp->chip_platform_type;
        bp->chip_num = resp->chip_num;
        test_if ( ( resp->dev_caps_cfg & SHORT_CMD_SUPPORTED ) &&
                 ( resp->dev_caps_cfg & SHORT_CMD_REQUIRED ) )
                FLAG_SET ( bp->flags, BNXT_FLAG_HWRM_SHORT_CMD_SUPP );
        bp->hwrm_max_ext_req_len = resp->max_ext_req_len;
        if ( bp->chip_num == CHIP_NUM_57500 )
                bp->thor = 1;
        dbg_fw_ver ( resp, bp->hwrm_cmd_timeout );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_func_resource_qcaps ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_resource_qcaps_input );
        struct hwrm_func_resource_qcaps_input *req;
        struct hwrm_func_resource_qcaps_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_func_resource_qcaps_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_func_resource_qcaps_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_RESOURCE_QCAPS,
                cmd_len );
        req->fid = ( u16 )HWRM_NA_SIGNATURE;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc != STATUS_SUCCESS )
                return STATUS_SUCCESS;

        FLAG_SET ( bp->flags, BNXT_FLAG_RESOURCE_QCAPS_SUPPORT );

        // VFs
        if ( !bp->vf ) {
                bp->max_vfs = resp->max_vfs;
                bp->vf_res_strategy = resp->vf_reservation_strategy;
        }

        // vNICs
        bp->min_vnics = resp->min_vnics;
        bp->max_vnics = resp->max_vnics;

        // MSI-X
        bp->max_msix = resp->max_msix;

        // Ring Groups
        bp->min_hw_ring_grps = resp->min_hw_ring_grps;
        bp->max_hw_ring_grps = resp->max_hw_ring_grps;

        // TX Rings
        bp->min_tx_rings = resp->min_tx_rings;
        bp->max_tx_rings = resp->max_tx_rings;

        // RX Rings
        bp->min_rx_rings = resp->min_rx_rings;
        bp->max_rx_rings = resp->max_rx_rings;

        // Completion Rings
        bp->min_cp_rings = resp->min_cmpl_rings;
        bp->max_cp_rings = resp->max_cmpl_rings;

        // RSS Contexts
        bp->min_rsscos_ctxs = resp->min_rsscos_ctx;
        bp->max_rsscos_ctxs = resp->max_rsscos_ctx;

        // L2 Contexts
        bp->min_l2_ctxs = resp->min_l2_ctxs;
        bp->max_l2_ctxs = resp->max_l2_ctxs;

        // Statistic Contexts
        bp->min_stat_ctxs = resp->min_stat_ctx;
        bp->max_stat_ctxs = resp->max_stat_ctx;
        dbg_func_resource_qcaps ( bp );
        return STATUS_SUCCESS;
}

static u32 bnxt_set_ring_info ( struct bnxt *bp )
{
        u32 enables = 0;

        DBGP ( "%s\n", __func__ );
        bp->num_cmpl_rings   = DEFAULT_NUMBER_OF_CMPL_RINGS;
        bp->num_tx_rings         = DEFAULT_NUMBER_OF_TX_RINGS;
        bp->num_rx_rings         = DEFAULT_NUMBER_OF_RX_RINGS;
        bp->num_hw_ring_grps = DEFAULT_NUMBER_OF_RING_GRPS;
        bp->num_stat_ctxs    = DEFAULT_NUMBER_OF_STAT_CTXS;

        if ( bp->min_cp_rings <= DEFAULT_NUMBER_OF_CMPL_RINGS )
                bp->num_cmpl_rings = bp->min_cp_rings;

        if ( bp->min_tx_rings <= DEFAULT_NUMBER_OF_TX_RINGS )
                bp->num_tx_rings = bp->min_tx_rings;

        if ( bp->min_rx_rings <= DEFAULT_NUMBER_OF_RX_RINGS )
                bp->num_rx_rings = bp->min_rx_rings;

        if ( bp->min_hw_ring_grps <= DEFAULT_NUMBER_OF_RING_GRPS )
                bp->num_hw_ring_grps = bp->min_hw_ring_grps;

        if ( bp->min_stat_ctxs <= DEFAULT_NUMBER_OF_STAT_CTXS )
                bp->num_stat_ctxs = bp->min_stat_ctxs;

        dbg_num_rings ( bp );
        enables = ( FUNC_CFG_REQ_ENABLES_NUM_CMPL_RINGS |
                           FUNC_CFG_REQ_ENABLES_NUM_TX_RINGS |
                           FUNC_CFG_REQ_ENABLES_NUM_RX_RINGS |
                           FUNC_CFG_REQ_ENABLES_NUM_STAT_CTXS |
                           FUNC_CFG_REQ_ENABLES_NUM_HW_RING_GRPS );
        return enables;
}

static void bnxt_hwrm_assign_resources ( struct bnxt *bp )
{
        struct hwrm_func_cfg_input *req;
        u32 enables = 0;

        DBGP ( "%s\n", __func__ );
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_RESOURCE_QCAPS_SUPPORT ) )
                enables = bnxt_set_ring_info ( bp );

        req = ( struct hwrm_func_cfg_input * )bp->hwrm_addr_req;
        req->num_cmpl_rings   = bp->num_cmpl_rings;
        req->num_tx_rings     = bp->num_tx_rings;
        req->num_rx_rings     = bp->num_rx_rings;
        req->num_stat_ctxs    = bp->num_stat_ctxs;
        req->num_hw_ring_grps = bp->num_hw_ring_grps;
        req->enables = enables;
}

static int bnxt_hwrm_func_qcaps_req ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_qcaps_input );
        struct hwrm_func_qcaps_input *req;
        struct hwrm_func_qcaps_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( bp->vf )
                return STATUS_SUCCESS;

        req = ( struct hwrm_func_qcaps_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_func_qcaps_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_QCAPS, cmd_len );
        req->fid = ( u16 )HWRM_NA_SIGNATURE;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        bp->fid = resp->fid;
        bp->port_idx = ( u8 )resp->port_id;

        /* Get MAC address for this PF */
        memcpy ( &bp->mac_addr[0], &resp->mac_address[0], ETH_ALEN );
        dbg_func_qcaps ( bp );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_func_qcfg_req ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_qcfg_input );
        struct hwrm_func_qcfg_input *req;
        struct hwrm_func_qcfg_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_func_qcfg_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_func_qcfg_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_QCFG, cmd_len );
        req->fid = ( u16 )HWRM_NA_SIGNATURE;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        if ( resp->flags & FUNC_QCFG_RESP_FLAGS_MULTI_HOST )
                FLAG_SET ( bp->flags, BNXT_FLAG_MULTI_HOST );

        if ( resp->port_partition_type &
                FUNC_QCFG_RESP_PORT_PARTITION_TYPE_NPAR1_0 )
                FLAG_SET ( bp->flags, BNXT_FLAG_NPAR_MODE );

        bp->ordinal_value = ( u8 )resp->pci_id & 0x0F;
        bp->stat_ctx_id   = resp->stat_ctx_id;

        /* If VF is set to TRUE, then use some data from func_qcfg (  ). */
        if ( bp->vf ) {
                bp->fid = resp->fid;
                bp->port_idx = ( u8 )resp->port_id;
                bp->vlan_id  = resp->vlan;

                /* Get MAC address for this VF */
                memcpy ( bp->mac_addr, resp->mac_address, ETH_ALEN );
        }
        dbg_func_qcfg ( bp );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_func_reset_req ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_reset_input );
        struct hwrm_func_reset_input *req;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_func_reset_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_RESET, cmd_len );
        if ( !bp->vf )
                req->func_reset_level = FUNC_RESET_REQ_FUNC_RESET_LEVEL_RESETME;

        return wait_resp ( bp, HWRM_CMD_WAIT ( 6 ), cmd_len, __func__ );
}

static int bnxt_hwrm_func_cfg_req ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_cfg_input );
        struct hwrm_func_cfg_input *req;

        DBGP ( "%s\n", __func__ );
        if ( bp->vf )
                return STATUS_SUCCESS;

        req = ( struct hwrm_func_cfg_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_CFG, cmd_len );
        req->fid = ( u16 )HWRM_NA_SIGNATURE;
        bnxt_hwrm_assign_resources ( bp );
        if ( bp->thor ) {
                req->enables |= ( FUNC_CFG_REQ_ENABLES_NUM_MSIX |
                                  FUNC_CFG_REQ_ENABLES_NUM_VNICS |
                                  FUNC_CFG_REQ_ENABLES_EVB_MODE );
                req->num_msix  = 1;
                req->num_vnics = 1;
                req->evb_mode  = FUNC_CFG_REQ_EVB_MODE_NO_EVB;
        }
        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_hwrm_func_drv_rgtr ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_drv_rgtr_input );
        struct hwrm_func_drv_rgtr_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_func_drv_rgtr_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_DRV_RGTR, cmd_len );

        /* Register with HWRM */
        req->enables = FUNC_DRV_RGTR_REQ_ENABLES_OS_TYPE |
                        FUNC_DRV_RGTR_REQ_ENABLES_ASYNC_EVENT_FWD |
                        FUNC_DRV_RGTR_REQ_ENABLES_VER;
        req->async_event_fwd[0] |= 0x01;
        req->os_type = FUNC_DRV_RGTR_REQ_OS_TYPE_OTHER;
        req->ver_maj = IPXE_VERSION_MAJOR;
        req->ver_min = IPXE_VERSION_MINOR;
        req->ver_upd = IPXE_VERSION_UPDATE;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_SET ( bp->flag_hwrm, VALID_DRIVER_REG );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_func_drv_unrgtr ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_drv_unrgtr_input );
        struct hwrm_func_drv_unrgtr_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_DRIVER_REG ) ) )
                return STATUS_SUCCESS;

        req = ( struct hwrm_func_drv_unrgtr_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_DRV_UNRGTR, cmd_len );
        req->flags = FUNC_DRV_UNRGTR_REQ_FLAGS_PREPARE_FOR_SHUTDOWN;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc )
                return STATUS_FAILURE;

        FLAG_RESET ( bp->flag_hwrm, VALID_DRIVER_REG );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_set_async_event ( struct bnxt *bp )
{
        int rc;
        u16 idx;

        DBGP ( "%s\n", __func__ );
        if ( bp->thor )
                idx = bp->nq_ring_id;
        else
                idx = bp->cq_ring_id;
        if ( bp->vf ) {
                u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_vf_cfg_input );
                struct hwrm_func_vf_cfg_input *req;

                req = ( struct hwrm_func_vf_cfg_input * )bp->hwrm_addr_req;
                hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_VF_CFG,
                        cmd_len );
                req->enables = VF_CFG_ENABLE_FLAGS;
                req->async_event_cr = idx;
                req->mtu = bp->mtu;
                req->guest_vlan = bp->vlan_id;
                memcpy ( ( char * )&req->dflt_mac_addr[0], bp->mac_addr,
                        ETH_ALEN );
                rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        } else {
                u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_cfg_input );
                struct hwrm_func_cfg_input *req;

                req = ( struct hwrm_func_cfg_input * )bp->hwrm_addr_req;
                hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_CFG, cmd_len );
                req->fid = ( u16 )HWRM_NA_SIGNATURE;
                req->enables = FUNC_CFG_REQ_ENABLES_ASYNC_EVENT_CR;
                req->async_event_cr = idx;
                rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        }
        return rc;
}

static int bnxt_hwrm_cfa_l2_filter_alloc ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_cfa_l2_filter_alloc_input );
        struct hwrm_cfa_l2_filter_alloc_input *req;
        struct hwrm_cfa_l2_filter_alloc_output *resp;
        int rc;
        u32 flags = CFA_L2_FILTER_ALLOC_REQ_FLAGS_PATH_RX;
        u32 enables;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_cfa_l2_filter_alloc_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_cfa_l2_filter_alloc_output * )bp->hwrm_addr_resp;
        if ( bp->vf )
                flags |= CFA_L2_FILTER_ALLOC_REQ_FLAGS_OUTERMOST;
        enables = CFA_L2_FILTER_ALLOC_REQ_ENABLES_DST_ID |
                CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR |
                CFA_L2_FILTER_ALLOC_REQ_ENABLES_L2_ADDR_MASK;

        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_CFA_L2_FILTER_ALLOC,
                cmd_len );
        req->flags = flags;
        req->enables = enables;
        memcpy ( ( char * )&req->l2_addr[0], ( char * )&bp->mac_addr[0],
                ETH_ALEN );
        memset ( ( char * )&req->l2_addr_mask[0], 0xff, ETH_ALEN );
        if ( !bp->vf ) {
                memcpy ( ( char * )&req->t_l2_addr[0], bp->mac_addr, ETH_ALEN );
                memset ( ( char * )&req->t_l2_addr_mask[0], 0xff, ETH_ALEN );
        }
        req->src_type = CFA_L2_FILTER_ALLOC_REQ_SRC_TYPE_NPORT;
        req->src_id   = ( u32 )bp->port_idx;
        req->dst_id   = bp->vnic_id;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc )
                return STATUS_FAILURE;

        FLAG_SET ( bp->flag_hwrm, VALID_L2_FILTER );
        bp->l2_filter_id = resp->l2_filter_id;
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_cfa_l2_filter_free ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_cfa_l2_filter_free_input );
        struct hwrm_cfa_l2_filter_free_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_L2_FILTER ) ) )
                return STATUS_SUCCESS;

        req = ( struct hwrm_cfa_l2_filter_free_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_CFA_L2_FILTER_FREE,
                cmd_len );
        req->l2_filter_id = bp->l2_filter_id;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_RESET ( bp->flag_hwrm, VALID_L2_FILTER );
        return STATUS_SUCCESS;
}

u32 set_rx_mask ( u32 rx_mask )
{
        u32 mask = 0;

        if ( !rx_mask )
                return mask;

        mask = CFA_L2_SET_RX_MASK_REQ_MASK_BCAST;
        if ( rx_mask != RX_MASK_ACCEPT_NONE ) {
                if ( rx_mask & RX_MASK_ACCEPT_MULTICAST )
                        mask |= CFA_L2_SET_RX_MASK_REQ_MASK_MCAST;
                if ( rx_mask & RX_MASK_ACCEPT_ALL_MULTICAST )
                        mask |= CFA_L2_SET_RX_MASK_REQ_MASK_ALL_MCAST;
                if ( rx_mask & RX_MASK_PROMISCUOUS_MODE )
                        mask |= CFA_L2_SET_RX_MASK_REQ_MASK_PROMISCUOUS;
        }
        return mask;
}

static int bnxt_hwrm_set_rx_mask ( struct bnxt *bp, u32 rx_mask )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_cfa_l2_set_rx_mask_input );
        struct hwrm_cfa_l2_set_rx_mask_input *req;
        u32 mask = set_rx_mask ( rx_mask );

        req = ( struct hwrm_cfa_l2_set_rx_mask_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_CFA_L2_SET_RX_MASK,
                cmd_len );
        req->vnic_id = bp->vnic_id;
        req->mask    = mask;

        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_hwrm_port_phy_qcfg ( struct bnxt *bp, u16 idx )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_port_phy_qcfg_input );
        struct hwrm_port_phy_qcfg_input *req;
        struct hwrm_port_phy_qcfg_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_port_phy_qcfg_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_port_phy_qcfg_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_PORT_PHY_QCFG, cmd_len );
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        if ( idx & SUPPORT_SPEEDS )
                bp->support_speeds = resp->support_speeds;

        if ( idx & DETECT_MEDIA )
                bp->media_detect = resp->module_status;

        if ( idx & PHY_SPEED )
                bp->current_link_speed = resp->link_speed;

        if ( idx & PHY_STATUS ) {
                if ( resp->link == PORT_PHY_QCFG_RESP_LINK_LINK )
                        bp->link_status = STATUS_LINK_ACTIVE;
                else
                        bp->link_status = STATUS_LINK_DOWN;
        }
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_nvm_get_variable_req ( struct bnxt *bp,
        u16 data_len, u16 option_num, u16 dimensions, u16 index_0 )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_nvm_get_variable_input );
        struct hwrm_nvm_get_variable_input *req;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_nvm_get_variable_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_NVM_GET_VARIABLE, cmd_len );
        req->dest_data_addr = bp->dma_addr_mapping;
        req->data_len           = data_len;
        req->option_num         = option_num;
        req->dimensions         = dimensions;
        req->index_0            = index_0;
        return wait_resp ( bp,
                HWRM_CMD_FLASH_MULTIPLAYER ( bp->hwrm_cmd_timeout ),
                cmd_len, __func__ );
}

static int bnxt_get_link_speed ( struct bnxt *bp )
{
        u32 *ptr32 = ( u32 * )bp->hwrm_addr_dma;

        DBGP ( "%s\n", __func__ );
        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 4,
                ( u16 )LINK_SPEED_DRV_NUM,
                1, ( u16 )bp->port_idx ) != STATUS_SUCCESS )
                return STATUS_FAILURE;
        bp->link_set = SET_LINK ( *ptr32, SPEED_DRV_MASK, SPEED_DRV_SHIFT );
        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 4,
                ( u16 )LINK_SPEED_FW_NUM,
                1, ( u16 )bp->port_idx ) != STATUS_SUCCESS )
                return STATUS_FAILURE;
        bp->link_set |= SET_LINK ( *ptr32, SPEED_FW_MASK, SPEED_FW_SHIFT );
        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 4,
                 ( u16 )D3_LINK_SPEED_FW_NUM, 1,
                 ( u16 )bp->port_idx ) != STATUS_SUCCESS )
                return STATUS_FAILURE;
        bp->link_set |= SET_LINK ( *ptr32, D3_SPEED_FW_MASK,
                        D3_SPEED_FW_SHIFT );
        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 1,
                 ( u16 )PORT_CFG_LINK_SETTINGS_MEDIA_AUTO_DETECT_NUM,
                1, ( u16 )bp->port_idx ) != STATUS_SUCCESS )
                return STATUS_FAILURE;
        bp->link_set |= SET_LINK ( *ptr32,
                MEDIA_AUTO_DETECT_MASK, MEDIA_AUTO_DETECT_SHIFT );

        switch ( bp->link_set & LINK_SPEED_DRV_MASK ) {
        case LINK_SPEED_DRV_1G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_1000MBPS );
                break;
        case LINK_SPEED_DRV_2_5G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_2500MBPS );
                break;
        case LINK_SPEED_DRV_10G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_10GBPS );
                break;
        case LINK_SPEED_DRV_25G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_25GBPS );
                break;
        case LINK_SPEED_DRV_40G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_40GBPS );
                break;
        case LINK_SPEED_DRV_50G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_50GBPS );
                break;
        case LINK_SPEED_DRV_100G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_100GBPS );
                break;
        case LINK_SPEED_DRV_200G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_200GBPS );
                break;
        case LINK_SPEED_DRV_AUTONEG:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_AUTONEG );
                break;
        default:
                bp->medium = SET_MEDIUM_DUPLEX ( bp, MEDIUM_FULL_DUPLEX );
                break;
        }
        prn_set_speed ( bp->link_set );
        return STATUS_SUCCESS;
}

static int bnxt_get_vlan ( struct bnxt *bp )
{
        u32 *ptr32 = ( u32 * )bp->hwrm_addr_dma;

        /* If VF is set to TRUE, Do not issue this command */
        if ( bp->vf )
                return STATUS_SUCCESS;

        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 1,
                 ( u16 )FUNC_CFG_PRE_BOOT_MBA_VLAN_NUM, 1,
                 ( u16 )bp->ordinal_value ) != STATUS_SUCCESS )
                return STATUS_FAILURE;

        bp->mba_cfg2 = SET_MBA ( *ptr32, VLAN_MASK, VLAN_SHIFT );
        test_if ( bnxt_hwrm_nvm_get_variable_req ( bp, 16,
                 ( u16 )FUNC_CFG_PRE_BOOT_MBA_VLAN_VALUE_NUM, 1,
                 ( u16 )bp->ordinal_value ) != STATUS_SUCCESS )
                return STATUS_FAILURE;

        bp->mba_cfg2 |= SET_MBA ( *ptr32, VLAN_VALUE_MASK, VLAN_VALUE_SHIFT );
        if ( bp->mba_cfg2 & FUNC_CFG_PRE_BOOT_MBA_VLAN_ENABLED )
                bp->vlan_id = bp->mba_cfg2 & VLAN_VALUE_MASK;
        else
                bp->vlan_id = 0;

        if ( bp->mba_cfg2 & FUNC_CFG_PRE_BOOT_MBA_VLAN_ENABLED )
                DBGP ( "VLAN MBA Enabled ( %d )\n",
                        ( bp->mba_cfg2 & VLAN_VALUE_MASK ) );

        return STATUS_SUCCESS;
}

static int bnxt_hwrm_backing_store_qcfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_backing_store_qcfg_input );
        struct hwrm_func_backing_store_qcfg_input *req;

        DBGP ( "%s\n", __func__ );
        if ( !bp->thor )
                return STATUS_SUCCESS;

        req = ( struct hwrm_func_backing_store_qcfg_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_BACKING_STORE_QCFG,
                cmd_len );
        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_hwrm_backing_store_cfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_func_backing_store_cfg_input );
        struct hwrm_func_backing_store_cfg_input *req;

        DBGP ( "%s\n", __func__ );
        if ( !bp->thor )
                return STATUS_SUCCESS;

        req = ( struct hwrm_func_backing_store_cfg_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_FUNC_BACKING_STORE_CFG,
                cmd_len );
        req->flags   = FUNC_BACKING_STORE_CFG_REQ_FLAGS_PREBOOT_MODE;
        req->enables = 0;
        return wait_resp ( bp, HWRM_CMD_WAIT ( 6 ), cmd_len, __func__ );
}

static int bnxt_hwrm_queue_qportcfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_queue_qportcfg_input );
        struct hwrm_queue_qportcfg_input *req;
        struct hwrm_queue_qportcfg_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( !bp->thor )
                return STATUS_SUCCESS;

        req = ( struct hwrm_queue_qportcfg_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_queue_qportcfg_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_QUEUE_QPORTCFG, cmd_len );
        req->flags   = 0;
        req->port_id = 0;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        bp->queue_id = resp->queue_id0;
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_port_mac_cfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_port_mac_cfg_input );
        struct hwrm_port_mac_cfg_input *req;

        DBGP ( "%s\n", __func__ );
        if ( bp->vf )
                return STATUS_SUCCESS;

        req = ( struct hwrm_port_mac_cfg_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_PORT_MAC_CFG, cmd_len );
        req->lpbk = PORT_MAC_CFG_REQ_LPBK_NONE;
        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_hwrm_port_phy_cfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_port_phy_cfg_input );
        struct hwrm_port_phy_cfg_input *req;
        u32 flags;
        u32 enables = 0;
        u16 force_link_speed = 0;
        u16 auto_link_speed_mask = 0;
        u8  auto_mode = 0;
        u8  auto_pause = 0;
        u8  auto_duplex = 0;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_port_phy_cfg_input * )bp->hwrm_addr_req;
        flags = PORT_PHY_CFG_REQ_FLAGS_FORCE |
                PORT_PHY_CFG_REQ_FLAGS_RESET_PHY;

        switch ( GET_MEDIUM_SPEED ( bp->medium ) ) {
        case MEDIUM_SPEED_1000MBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_1GB;
                break;
        case MEDIUM_SPEED_10GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_10GB;
                break;
        case MEDIUM_SPEED_25GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_25GB;
                break;
        case MEDIUM_SPEED_40GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_40GB;
                break;
        case MEDIUM_SPEED_50GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_50GB;
                break;
        case MEDIUM_SPEED_100GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_100GB;
                break;
        case MEDIUM_SPEED_200GBPS:
                force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_200GB;
                break;
        default:
                auto_mode = PORT_PHY_CFG_REQ_AUTO_MODE_SPEED_MASK;
                flags &= ~PORT_PHY_CFG_REQ_FLAGS_FORCE;
                enables |= PORT_PHY_CFG_REQ_ENABLES_AUTO_MODE |
                        PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK |
                        PORT_PHY_CFG_REQ_ENABLES_AUTO_DUPLEX |
                        PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE;
                auto_pause = PORT_PHY_CFG_REQ_AUTO_PAUSE_TX |
                                PORT_PHY_CFG_REQ_AUTO_PAUSE_RX;
                auto_duplex = PORT_PHY_CFG_REQ_AUTO_DUPLEX_BOTH;
                auto_link_speed_mask = bp->support_speeds;
                break;
        }

        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_PORT_PHY_CFG, cmd_len );
        req->flags = flags;
        req->enables = enables;
        req->port_id = bp->port_idx;
        req->force_link_speed = force_link_speed;
        req->auto_mode = auto_mode;
        req->auto_duplex = auto_duplex;
        req->auto_pause = auto_pause;
        req->auto_link_speed_mask = auto_link_speed_mask;

        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_query_phy_link ( struct bnxt *bp )
{
        u16 flag = PHY_STATUS | PHY_SPEED | DETECT_MEDIA;

        DBGP ( "%s\n", __func__ );
        /* Query Link Status */
        if ( bnxt_hwrm_port_phy_qcfg ( bp, QCFG_PHY_ALL ) != STATUS_SUCCESS ) {
                        return STATUS_FAILURE;
        }

        if ( bp->link_status == STATUS_LINK_ACTIVE )
                return STATUS_SUCCESS;

        /* If VF is set to TRUE, Do not issue the following commands */
        if ( bp->vf )
                return STATUS_SUCCESS;

        /* If multi_host or NPAR, Do not issue bnxt_get_link_speed */
        if ( FLAG_TEST ( bp->flags, PORT_PHY_FLAGS ) ) {
                dbg_flags ( __func__, bp->flags );
                return STATUS_SUCCESS;
        }

        /* HWRM_NVM_GET_VARIABLE - speed */
        if ( bnxt_get_link_speed ( bp ) != STATUS_SUCCESS ) {
                        return STATUS_FAILURE;
        }

        /* Configure link if it is not up */
        bnxt_hwrm_port_phy_cfg ( bp );

        /* refresh link speed values after bringing link up */
        return bnxt_hwrm_port_phy_qcfg ( bp, flag );
}

static int bnxt_get_phy_link ( struct bnxt *bp )
{
        u16 i;
        u16 flag = PHY_STATUS | PHY_SPEED | DETECT_MEDIA;

        DBGP ( "%s\n", __func__ );
        dbg_chip_info ( bp );
        for ( i = 0; i < ( bp->wait_link_timeout / 100 ); i++ ) {
                if ( bnxt_hwrm_port_phy_qcfg ( bp, flag ) != STATUS_SUCCESS )
                        break;

                if ( bp->link_status == STATUS_LINK_ACTIVE )
                        break;

//              if ( bp->media_detect )
//                      break;
                mdelay ( LINK_POLL_WAIT_TIME );
        }
        dbg_link_state ( bp, ( u32 ) ( ( i + 1 ) * 100 ) );
        bnxt_set_link ( bp );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_stat_ctx_alloc ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_stat_ctx_alloc_input );
        struct hwrm_stat_ctx_alloc_input *req;
        struct hwrm_stat_ctx_alloc_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_stat_ctx_alloc_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_stat_ctx_alloc_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_STAT_CTX_ALLOC, cmd_len );
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_SET ( bp->flag_hwrm, VALID_STAT_CTX );
        bp->stat_ctx_id = ( u16 )resp->stat_ctx_id;
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_stat_ctx_free ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_stat_ctx_free_input );
        struct hwrm_stat_ctx_free_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_STAT_CTX ) ) )
                return STATUS_SUCCESS;

        req = ( struct hwrm_stat_ctx_free_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_STAT_CTX_FREE, cmd_len );
        req->stat_ctx_id = ( u32 )bp->stat_ctx_id;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_RESET ( bp->flag_hwrm, VALID_STAT_CTX );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_ring_free_grp ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_ring_grp_free_input );
        struct hwrm_ring_grp_free_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RING_GRP ) ) )
                return STATUS_SUCCESS;

        req = ( struct hwrm_ring_grp_free_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_RING_GRP_FREE, cmd_len );
        req->ring_group_id = ( u32 )bp->ring_grp_id;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_RESET ( bp->flag_hwrm, VALID_RING_GRP );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_ring_alloc_grp ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_ring_grp_alloc_input );
        struct hwrm_ring_grp_alloc_input *req;
        struct hwrm_ring_grp_alloc_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( bp->thor )
                return STATUS_SUCCESS;

        req = ( struct hwrm_ring_grp_alloc_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_ring_grp_alloc_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_RING_GRP_ALLOC, cmd_len );
        req->cr = bp->cq_ring_id;
        req->rr = bp->rx_ring_id;
        req->ar = ( u16 )HWRM_NA_SIGNATURE;
        if ( bp->vf )
                req->sc = bp->stat_ctx_id;

        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_SET ( bp->flag_hwrm, VALID_RING_GRP );
        bp->ring_grp_id = ( u16 )resp->ring_group_id;
        return STATUS_SUCCESS;
}

int bnxt_hwrm_ring_free ( struct bnxt *bp, u16 ring_id, u8 ring_type )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_ring_free_input );
        struct hwrm_ring_free_input *req;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_ring_free_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_RING_FREE, cmd_len );
        req->ring_type = ring_type;
        req->ring_id   = ring_id;
        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_hwrm_ring_alloc ( struct bnxt *bp, u8 type )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_ring_alloc_input );
        struct hwrm_ring_alloc_input *req;
        struct hwrm_ring_alloc_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_ring_alloc_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_ring_alloc_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_RING_ALLOC, cmd_len );
        req->ring_type = type;
        switch ( type ) {
        case RING_ALLOC_REQ_RING_TYPE_NQ:
                req->page_size  = LM_PAGE_BITS ( 12 );
                req->int_mode   = BNXT_CQ_INTR_MODE ( bp->vf );
                req->length     = ( u32 )bp->nq.ring_cnt;
                req->logical_id = 0xFFFF; // Required value for Thor FW?
                req->page_tbl_addr = virt_to_bus ( bp->nq.bd_virt );
                break;
        case RING_ALLOC_REQ_RING_TYPE_L2_CMPL:
                req->page_size = LM_PAGE_BITS ( 8 );
                req->int_mode  = BNXT_CQ_INTR_MODE ( bp->vf );
                req->length    = ( u32 )bp->cq.ring_cnt;
                req->page_tbl_addr = virt_to_bus ( bp->cq.bd_virt );
                if ( !bp->thor )
                        break;
                req->enables = RING_ALLOC_REQ_ENABLES_NQ_RING_ID_VALID;
                req->nq_ring_id = bp->nq_ring_id;
                req->cq_handle = ( u64 )bp->nq_ring_id;
                break;
        case RING_ALLOC_REQ_RING_TYPE_TX:
                req->page_size   = LM_PAGE_BITS ( 8 );
                req->int_mode    = RING_ALLOC_REQ_INT_MODE_POLL;
                req->length      = ( u32 )bp->tx.ring_cnt;
                req->queue_id    = TX_RING_QID;
                req->stat_ctx_id = ( u32 )bp->stat_ctx_id;
                req->cmpl_ring_id  = bp->cq_ring_id;
                req->page_tbl_addr = virt_to_bus ( bp->tx.bd_virt );
                break;
        case RING_ALLOC_REQ_RING_TYPE_RX:
                req->page_size   = LM_PAGE_BITS ( 8 );
                req->int_mode    = RING_ALLOC_REQ_INT_MODE_POLL;
                req->length      = ( u32 )bp->rx.ring_cnt;
                req->stat_ctx_id = ( u32 )STAT_CTX_ID;
                req->cmpl_ring_id  = bp->cq_ring_id;
                req->page_tbl_addr = virt_to_bus ( bp->rx.bd_virt );
                if ( !bp->thor )
                        break;
                req->queue_id    = ( u16 )RX_RING_QID;
                req->rx_buf_size = MAX_ETHERNET_PACKET_BUFFER_SIZE;
                req->enables     = RING_ALLOC_REQ_ENABLES_RX_BUF_SIZE_VALID;
                break;
        default:
                return STATUS_SUCCESS;
        }
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed, type = %x\n", __func__, type );
                return STATUS_FAILURE;
        }

        if ( type == RING_ALLOC_REQ_RING_TYPE_L2_CMPL ) {
                FLAG_SET ( bp->flag_hwrm, VALID_RING_CQ );
                bp->cq_ring_id = resp->ring_id;
        } else if ( type == RING_ALLOC_REQ_RING_TYPE_TX ) {
                FLAG_SET ( bp->flag_hwrm, VALID_RING_TX );
                bp->tx_ring_id = resp->ring_id;
        } else if ( type == RING_ALLOC_REQ_RING_TYPE_RX ) {
                FLAG_SET ( bp->flag_hwrm, VALID_RING_RX );
                bp->rx_ring_id = resp->ring_id;
        } else if ( type == RING_ALLOC_REQ_RING_TYPE_NQ ) {
                FLAG_SET ( bp->flag_hwrm, VALID_RING_NQ );
                bp->nq_ring_id = resp->ring_id;
        }
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_ring_alloc_cq ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        return bnxt_hwrm_ring_alloc ( bp, RING_ALLOC_REQ_RING_TYPE_L2_CMPL );
}

static int bnxt_hwrm_ring_alloc_tx ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        return bnxt_hwrm_ring_alloc ( bp, RING_ALLOC_REQ_RING_TYPE_TX );
}

static int bnxt_hwrm_ring_alloc_rx ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        return bnxt_hwrm_ring_alloc ( bp, RING_ALLOC_REQ_RING_TYPE_RX );
}

static int bnxt_hwrm_ring_free_cq ( struct bnxt *bp )
{
        int ret = STATUS_SUCCESS;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RING_CQ ) ) )
                return ret;

        ret = RING_FREE ( bp, bp->cq_ring_id, RING_FREE_REQ_RING_TYPE_L2_CMPL );
        if ( ret == STATUS_SUCCESS )
                FLAG_RESET ( bp->flag_hwrm, VALID_RING_CQ );

        return ret;
}

static int bnxt_hwrm_ring_free_tx ( struct bnxt *bp )
{
        int ret = STATUS_SUCCESS;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RING_TX ) ) )
                return ret;

        ret = RING_FREE ( bp, bp->tx_ring_id, RING_FREE_REQ_RING_TYPE_TX );
        if ( ret == STATUS_SUCCESS )
                FLAG_RESET ( bp->flag_hwrm, VALID_RING_TX );

        return ret;
}

static int bnxt_hwrm_ring_free_rx ( struct bnxt *bp )
{
        int ret = STATUS_SUCCESS;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RING_RX ) ) )
                return ret;

        ret = RING_FREE ( bp, bp->rx_ring_id, RING_FREE_REQ_RING_TYPE_RX );
        if ( ret == STATUS_SUCCESS )
                FLAG_RESET ( bp->flag_hwrm, VALID_RING_RX );

        return ret;
}

static int bnxt_hwrm_ring_alloc_nq ( struct bnxt *bp )
{
        if ( !bp->thor )
                return STATUS_SUCCESS;
        return bnxt_hwrm_ring_alloc ( bp, RING_ALLOC_REQ_RING_TYPE_NQ );
}

static int bnxt_hwrm_ring_free_nq ( struct bnxt *bp )
{
        int ret = STATUS_SUCCESS;

        if ( !bp->thor )
                return STATUS_SUCCESS;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_RING_NQ ) ) )
                return ret;

        ret = RING_FREE ( bp, bp->nq_ring_id, RING_FREE_REQ_RING_TYPE_NQ );
        if ( ret == STATUS_SUCCESS )
                FLAG_RESET ( bp->flag_hwrm, VALID_RING_NQ );

        return ret;
}

static int bnxt_hwrm_vnic_alloc ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_vnic_alloc_input );
        struct hwrm_vnic_alloc_input *req;
        struct hwrm_vnic_alloc_output *resp;
        int rc;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_vnic_alloc_input * )bp->hwrm_addr_req;
        resp = ( struct hwrm_vnic_alloc_output * )bp->hwrm_addr_resp;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_VNIC_ALLOC, cmd_len );
        req->flags = VNIC_ALLOC_REQ_FLAGS_DEFAULT;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_SET ( bp->flag_hwrm, VALID_VNIC_ID );
        bp->vnic_id = resp->vnic_id;
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_vnic_free ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_vnic_free_input );
        struct hwrm_vnic_free_input *req;
        int rc;

        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST ( bp->flag_hwrm, VALID_VNIC_ID ) ) )
                return STATUS_SUCCESS;

        req = ( struct hwrm_vnic_free_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_VNIC_FREE, cmd_len );
        req->vnic_id = bp->vnic_id;
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }

        FLAG_RESET ( bp->flag_hwrm, VALID_VNIC_ID );
        return STATUS_SUCCESS;
}

static int bnxt_hwrm_vnic_cfg ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_vnic_cfg_input );
        struct hwrm_vnic_cfg_input *req;

        DBGP ( "%s\n", __func__ );
        req = ( struct hwrm_vnic_cfg_input * )bp->hwrm_addr_req;
        hwrm_init ( bp, ( void * )req, ( u16 )HWRM_VNIC_CFG, cmd_len );
        req->enables = VNIC_CFG_REQ_ENABLES_MRU;
        req->mru         = bp->mtu;

        if ( bp->thor ) {
                req->enables |= ( VNIC_CFG_REQ_ENABLES_DEFAULT_RX_RING_ID |
                                VNIC_CFG_REQ_ENABLES_DEFAULT_CMPL_RING_ID );
                req->default_rx_ring_id   = bp->rx_ring_id;
                req->default_cmpl_ring_id = bp->cq_ring_id;
        } else {
                req->enables |= VNIC_CFG_REQ_ENABLES_DFLT_RING_GRP;
                req->dflt_ring_grp = bp->ring_grp_id;
        }

        req->flags   = VNIC_CFG_REQ_FLAGS_VLAN_STRIP_MODE;
        req->vnic_id = bp->vnic_id;
        return wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
}

static int bnxt_set_rx_mask ( struct bnxt *bp )
{
        return bnxt_hwrm_set_rx_mask ( bp, RX_MASK );
}

static int bnxt_reset_rx_mask ( struct bnxt *bp )
{
        return bnxt_hwrm_set_rx_mask ( bp, 0 );
}

typedef int ( *hwrm_func_t ) ( struct bnxt *bp );

hwrm_func_t bring_down_chip[] = {
        bnxt_hwrm_func_drv_unrgtr,      /* HWRM_FUNC_DRV_UNRGTR         */
        NULL,
};

hwrm_func_t bring_down_nic[] = {
        bnxt_hwrm_cfa_l2_filter_free,   /* HWRM_CFA_L2_FILTER_FREE      */
        bnxt_reset_rx_mask,
        bnxt_hwrm_vnic_cfg,             /* HWRM_VNIC_CFG                */
        bnxt_free_rx_iob,               /* HWRM_FREE_IOB                */
        bnxt_hwrm_vnic_free,            /* HWRM_VNIC_FREE               */
        bnxt_hwrm_ring_free_grp,        /* HWRM_RING_GRP_FREE           */
        bnxt_hwrm_ring_free_rx,         /* HWRM_RING_FREE - RX Ring     */
        bnxt_hwrm_ring_free_tx,         /* HWRM_RING_FREE - TX Ring     */
        bnxt_hwrm_stat_ctx_free,        /* HWRM_STAT_CTX_FREE           */
        bnxt_hwrm_ring_free_cq,         /* HWRM_RING_FREE - CQ Ring     */
        bnxt_hwrm_ring_free_nq,         /* HWRM_RING_FREE - NQ Ring     */
        NULL,
};
hwrm_func_t bring_up_chip[] = {
        bnxt_hwrm_ver_get,              /* HWRM_VER_GET                 */
        bnxt_hwrm_func_reset_req,       /* HWRM_FUNC_RESET              */
        bnxt_hwrm_func_drv_rgtr,        /* HWRM_FUNC_DRV_RGTR           */
        bnxt_hwrm_func_qcaps_req,       /* HWRM_FUNC_QCAPS              */
        bnxt_hwrm_backing_store_cfg,    /* HWRM_FUNC_BACKING_STORE_CFG  */
        bnxt_hwrm_backing_store_qcfg,   /* HWRM_FUNC_BACKING_STORE_QCFG */
        bnxt_hwrm_func_resource_qcaps,  /* HWRM_FUNC_RESOURCE_QCAPS     */
        bnxt_hwrm_func_qcfg_req,        /* HWRM_FUNC_QCFG               */
        bnxt_get_vlan,                  /* HWRM_NVM_GET_VARIABLE - vlan */
        bnxt_hwrm_port_mac_cfg,         /* HWRM_PORT_MAC_CFG            */
        bnxt_hwrm_func_cfg_req,         /* HWRM_FUNC_CFG                */
        bnxt_query_phy_link,            /* HWRM_PORT_PHY_QCFG           */
        bnxt_get_device_address,        /* HW MAC address               */
        NULL,
};

hwrm_func_t bring_up_nic[] = {
        bnxt_hwrm_stat_ctx_alloc,       /* HWRM_STAT_CTX_ALLOC          */
        bnxt_hwrm_queue_qportcfg,       /* HWRM_QUEUE_QPORTCFG          */
        bnxt_hwrm_ring_alloc_nq,        /* HWRM_RING_ALLOC - NQ Ring    */
        bnxt_hwrm_ring_alloc_cq,        /* HWRM_RING_ALLOC - CQ Ring    */
        bnxt_hwrm_ring_alloc_tx,        /* HWRM_RING_ALLOC - TX Ring    */
        bnxt_hwrm_ring_alloc_rx,        /* HWRM_RING_ALLOC - RX Ring    */
        bnxt_hwrm_ring_alloc_grp,       /* HWRM_RING_GRP_ALLOC - Group  */
        bnxt_hwrm_vnic_alloc,           /* HWRM_VNIC_ALLOC              */
        bnxt_post_rx_buffers,           /* Post RX buffers              */
        bnxt_hwrm_set_async_event,      /* ENABLES_ASYNC_EVENT_CR       */
        bnxt_hwrm_vnic_cfg,             /* HWRM_VNIC_CFG                */
        bnxt_hwrm_cfa_l2_filter_alloc,  /* HWRM_CFA_L2_FILTER_ALLOC     */
        bnxt_get_phy_link,              /* HWRM_PORT_PHY_QCFG - PhyLink */
        bnxt_set_rx_mask,               /* HWRM_CFA_L2_SET_RX_MASK      */
        NULL,
};

int bnxt_hwrm_run ( hwrm_func_t cmds[], struct bnxt *bp )
{
        hwrm_func_t *ptr;
        int ret;

        for ( ptr = cmds; *ptr; ++ptr ) {
                memset ( bp->hwrm_addr_req,  0, REQ_BUFFER_SIZE );
                memset ( bp->hwrm_addr_resp, 0, RESP_BUFFER_SIZE );
                ret = ( *ptr ) ( bp );
                if ( ret ) {
                        DBGP ( "- %s (  ): Failed\n", __func__ );
                        return STATUS_FAILURE;
                }
        }
        return STATUS_SUCCESS;
}

#define bnxt_down_chip( bp )    bnxt_hwrm_run ( bring_down_chip, bp )
#define bnxt_up_chip( bp )      bnxt_hwrm_run ( bring_up_chip, bp )
#define bnxt_down_nic( bp )     bnxt_hwrm_run ( bring_down_nic, bp )
#define bnxt_up_nic( bp )       bnxt_hwrm_run ( bring_up_nic, bp )

static int bnxt_open ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;

        DBGP ( "%s\n", __func__ );
        bnxt_mm_nic ( bp );
        return (bnxt_up_nic ( bp ));
}

static void bnxt_tx_adjust_pkt ( struct bnxt *bp, struct io_buffer *iob )
{
        u16 prev_len = iob_len ( iob );

        bp->vlan_tx = bnxt_get_pkt_vlan ( ( char * )iob->data );
        if ( !bp->vlan_tx && bp->vlan_id )
                bnxt_add_vlan ( iob, bp->vlan_id );

        dbg_tx_vlan ( bp, ( char * )iob->data, prev_len, iob_len ( iob ) );
        if ( iob_len ( iob ) != prev_len )
                prev_len = iob_len ( iob );

        iob_pad ( iob, ETH_ZLEN );
        dbg_tx_pad ( prev_len, iob_len ( iob ) );
}

static int bnxt_tx ( struct net_device *dev, struct io_buffer *iob )
{
        struct bnxt *bp = dev->priv;
        u16 len, entry;
        dma_addr_t mapping;

        if ( bnxt_tx_avail ( bp ) < 1 ) {
                DBGP ( "- %s (  ): Failed no bd's available\n", __func__ );
                return -ENOBUFS;
        }

        bnxt_tx_adjust_pkt ( bp, iob );
        entry = bp->tx.prod_id;
        mapping = virt_to_bus ( iob->data );
        len = iob_len ( iob );
        bp->tx.iob[entry] = iob;
        bnxt_set_txq ( bp, entry, mapping, len );
        entry = NEXT_IDX ( entry, bp->tx.ring_cnt );
        dump_tx_pkt ( ( u8 * )iob->data, len, bp->tx.prod_id );
        /* Packets are ready, update Tx producer idx local and on card. */
        bnxt_db_tx ( bp, ( u32 )entry );
        bp->tx.prod_id = entry;
        bp->tx.cnt_req++;
        /* memory barrier */
        mb (  );
        return 0;
}

static void bnxt_adv_nq_index ( struct bnxt *bp, u16 cnt )
{
        u16 cons_id;

        cons_id = bp->nq.cons_id + cnt;
        if ( cons_id >= bp->nq.ring_cnt ) {
                /* Toggle completion bit when the ring wraps. */
                bp->nq.completion_bit ^= 1;
                cons_id = cons_id - bp->nq.ring_cnt;
        }
        bp->nq.cons_id = cons_id;
}

void bnxt_link_evt ( struct bnxt *bp, struct hwrm_async_event_cmpl *evt )
{
        switch ( evt->event_id ) {
        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
                if ( evt->event_data1 & 0x01 )
                        bp->link_status = STATUS_LINK_ACTIVE;
                else
                        bp->link_status = STATUS_LINK_DOWN;
                bnxt_set_link ( bp );
                dbg_link_status ( bp );
                break;
        default:
                break;
        }
}

static void bnxt_service_cq ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;
        struct cmpl_base *cmp;
        struct tx_cmpl *tx;
        u16 old_cid = bp->cq.cons_id;
        int done = SERVICE_NEXT_CQ_BD;
        u32 cq_type;

        while ( done == SERVICE_NEXT_CQ_BD ) {
                cmp = ( struct cmpl_base * )BD_NOW ( bp->cq.bd_virt,
                                                bp->cq.cons_id,
                                                sizeof ( struct cmpl_base ) );

                if ( ( cmp->info3_v & CMPL_BASE_V ) ^ bp->cq.completion_bit )
                        break;

                cq_type = cmp->type & CMPL_BASE_TYPE_MASK;
                dump_evt ( ( u8 * )cmp, cq_type, bp->cq.cons_id, 0 );
                dump_cq ( cmp, bp->cq.cons_id );

                switch ( cq_type ) {
                case CMPL_BASE_TYPE_TX_L2:
                        tx = ( struct tx_cmpl * )cmp;
                        bnxt_tx_complete ( dev, ( u16 )tx->opaque );
                /* Fall through */
                case CMPL_BASE_TYPE_STAT_EJECT:
                        bnxt_adv_cq_index ( bp, 1 );
                        break;
                case CMPL_BASE_TYPE_RX_L2:
                        done = bnxt_rx_complete ( dev,
                                ( struct rx_pkt_cmpl * )cmp );
                        break;
                case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
                        bnxt_link_evt ( bp,
                                ( struct hwrm_async_event_cmpl * )cmp );
                        bnxt_adv_cq_index ( bp, 1 );
                        break;
                default:
                        done = NO_MORE_CQ_BD_TO_SERVICE;
                        break;
                }
        }

        if ( bp->cq.cons_id != old_cid )
                bnxt_db_cq ( bp );
}

static void bnxt_service_nq ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;
        struct nq_base *nqp;
        u16 old_cid = bp->nq.cons_id;
        int done = SERVICE_NEXT_NQ_BD;
        u32 nq_type;

        if ( !bp->thor )
                return;

        while ( done == SERVICE_NEXT_NQ_BD ) {
                nqp = ( struct nq_base * )BD_NOW ( bp->nq.bd_virt,
                        bp->nq.cons_id, sizeof ( struct nq_base ) );
                if ( ( nqp->v & NQ_CN_V ) ^ bp->nq.completion_bit )
                        break;
                nq_type = ( nqp->type & NQ_CN_TYPE_MASK );
                dump_evt ( ( u8 * )nqp, nq_type, bp->nq.cons_id, 1 );
                dump_nq ( nqp, bp->nq.cons_id );

                switch ( nq_type ) {
                case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
                        bnxt_link_evt ( bp,
                                ( struct hwrm_async_event_cmpl * )nqp );
                                /* Fall through */
                case NQ_CN_TYPE_CQ_NOTIFICATION:
                        bnxt_adv_nq_index ( bp, 1 );
                        break;
                default:
                        done = NO_MORE_NQ_BD_TO_SERVICE;
                        break;
                }
        }

        if ( bp->nq.cons_id != old_cid )
                bnxt_db_nq ( bp );
}

static void bnxt_poll ( struct net_device *dev )
{
        mb (  );
        bnxt_service_cq ( dev );
        bnxt_service_nq ( dev );
}

static void bnxt_close ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;

        DBGP ( "%s\n", __func__ );
        bnxt_down_nic (bp);

        /* iounmap PCI BAR ( s ) */
        bnxt_down_pci(bp);

        /* Get Bar Address */
        bp->bar0 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_0 );
        bp->bar1 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_2 );
        bp->bar2 = bnxt_pci_base ( bp->pdev, PCI_BASE_ADDRESS_4 );

}

static struct net_device_operations bnxt_netdev_ops = {
        .open     = bnxt_open,
        .close    = bnxt_close,
        .poll     = bnxt_poll,
        .transmit = bnxt_tx,
};

static int bnxt_init_one ( struct pci_device *pci )
{
        struct net_device *netdev;
        struct bnxt *bp;
        int err = 0;

        DBGP ( "%s\n", __func__ );
        /* Allocate network device */
        netdev = alloc_etherdev ( sizeof ( *bp ) );
        if ( !netdev ) {
                DBGP ( "- %s (  ): alloc_etherdev Failed\n", __func__ );
                err = -ENOMEM;
                goto disable_pdev;
        }

        /* Initialise network device */
        netdev_init ( netdev, &bnxt_netdev_ops );

        /* Driver private area for this device */
        bp = netdev->priv;

        /* Set PCI driver private data */
        pci_set_drvdata ( pci, netdev );

        /* Clear Private area data */
        memset ( bp, 0, sizeof ( *bp ) );
        bp->pdev = pci;
        bp->dev  = netdev;
        netdev->dev = &pci->dev;

        /* Enable PCI device */
        adjust_pci_device ( pci );

        /* Get PCI Information */
        bnxt_get_pci_info ( bp );

        /* Allocate and Initialise device specific parameters */
        if ( bnxt_alloc_mem ( bp ) != 0 ) {
                DBGP ( "- %s (  ): bnxt_alloc_mem Failed\n", __func__ );
                goto err_down_pci;
        }

        /* Get device specific information */
        if ( bnxt_up_chip ( bp ) != 0 ) {
                DBGP ( "- %s (  ): bnxt_up_chip Failed\n", __func__ );
                goto err_down_chip;
        }

        /* Register Network device */
        if ( register_netdev ( netdev ) != 0 ) {
                DBGP ( "- %s (  ): register_netdev Failed\n", __func__ );
                goto err_down_chip;
        }

        return 0;

err_down_chip:
        bnxt_down_chip (bp);
        bnxt_free_mem ( bp );

err_down_pci:
        bnxt_down_pci ( bp );
        netdev_nullify ( netdev );
        netdev_put ( netdev );

disable_pdev:
        pci_set_drvdata ( pci, NULL );
        return err;
}

static void bnxt_remove_one ( struct pci_device *pci )
{
        struct net_device *netdev = pci_get_drvdata ( pci );
        struct bnxt *bp = netdev->priv;

        DBGP ( "%s\n", __func__ );
        /* Unregister network device */
        unregister_netdev ( netdev );

        /* Bring down Chip */
        bnxt_down_chip(bp);

        /* Free Allocated resource */
        bnxt_free_mem ( bp );

        /* iounmap PCI BAR ( s ) */
        bnxt_down_pci ( bp );

        /* Stop network device */
        netdev_nullify ( netdev );

        /* Drop refernce to network device */
        netdev_put ( netdev );
}

/* Broadcom NXE PCI driver */
struct pci_driver bnxt_pci_driver __pci_driver = {
        .ids            = bnxt_nics,
        .id_count       = ARRAY_SIZE ( bnxt_nics ),
        .probe          = bnxt_init_one,
        .remove         = bnxt_remove_one,
};