bnxt.c

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FILE_LICENCE ( GPL2_ONLY );
 
#include <mii.h>
#include <stdio.h>
#include <string.h>
#include <errno.h>
#include <unistd.h>
#include <byteswap.h>
#include <ipxe/pci.h>
#include <ipxe/iobuf.h>
#include <ipxe/dma.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_nq_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, 0x1604, "14e4-1604", "Broadcom BCM957454", 0 ),
        PCI_ROM( 0x14e4, 0x1605, "14e4-1605", "Broadcom BCM957454 RDMA", 0 ),
        PCI_ROM( 0x14e4, 0x1606, "14e4-1606", "Broadcom BCM957454 RDMA VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1607, "bcm957454-1607", "Broadcom BCM957454 HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1608, "bcm957454-1608", "Broadcom BCM957454 RDMA HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1609, "14e4-1609", "Broadcom BCM957454 VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1614, "14e4-1614", "Broadcom BCM957454", 0 ),
        PCI_ROM( 0x14e4, 0x16bd, "bcm95741x-16bd", "Broadcom BCM95741x RDMA HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16c0, "14e4-16c0", "Broadcom BCM957417", 0 ),
        PCI_ROM( 0x14e4, 0x16c1, "14e4-16c1", "Broadcom BCM95741x VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16c5, "bcm95741x-16c5", "Broadcom BCM95741x HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16c8, "14e4-16c8", "Broadcom BCM957301", 0 ),
        PCI_ROM( 0x14e4, 0x16c9, "14e4-16c9", "Broadcom BCM957302", 0 ),
        PCI_ROM( 0x14e4, 0x16ca, "14e4-16ca", "Broadcom BCM957304", 0 ),
        PCI_ROM( 0x14e4, 0x16cc, "14e4-16cc", "Broadcom BCM957417 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16cd, "14e4-16cd", "Broadcom BCM958700", 0 ),
        PCI_ROM( 0x14e4, 0x16ce, "14e4-16ce", "Broadcom BCM957311", 0 ),
        PCI_ROM( 0x14e4, 0x16cf, "14e4-16cf", "Broadcom BCM957312", 0 ),
        PCI_ROM( 0x14e4, 0x16d0, "14e4-16d0", "Broadcom BCM957402", 0 ),
        PCI_ROM( 0x14e4, 0x16d1, "14e4-16d1", "Broadcom BCM957404", 0 ),
        PCI_ROM( 0x14e4, 0x16d2, "14e4-16d2", "Broadcom BCM957406", 0 ),
        PCI_ROM( 0x14e4, 0x16d4, "14e4-16d4", "Broadcom BCM957402 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16d5, "14e4-16d5", "Broadcom BCM957407", 0 ),
        PCI_ROM( 0x14e4, 0x16d6, "14e4-16d6", "Broadcom BCM957412", 0 ),
        PCI_ROM( 0x14e4, 0x16d7, "14e4-16d7", "Broadcom BCM957414", 0 ),
        PCI_ROM( 0x14e4, 0x16d8, "14e4-16d8", "Broadcom BCM957416", 0 ),
        PCI_ROM( 0x14e4, 0x16d9, "14e4-16d9", "Broadcom BCM957417", 0 ),
        PCI_ROM( 0x14e4, 0x16da, "14e4-16da", "Broadcom BCM957402", 0 ),
        PCI_ROM( 0x14e4, 0x16db, "14e4-16db", "Broadcom BCM957404", 0 ),
        PCI_ROM( 0x14e4, 0x16dc, "14e4-16dc", "Broadcom BCM95741x VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x16de, "14e4-16de", "Broadcom BCM957412 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16df, "14e4-16df", "Broadcom BCM957314", 0 ),
        PCI_ROM( 0x14e4, 0x16e0, "14e4-16e0", "Broadcom BCM957317", 0 ),
        PCI_ROM( 0x14e4, 0x16e2, "14e4-16e2", "Broadcom BCM957417", 0 ),
        PCI_ROM( 0x14e4, 0x16e3, "14e4-16e3", "Broadcom BCM957416", 0 ),
        PCI_ROM( 0x14e4, 0x16e4, "14e4-16e4", "Broadcom BCM957317", 0 ),
        PCI_ROM( 0x14e4, 0x16e7, "14e4-16e7", "Broadcom BCM957404 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16e8, "14e4-16e8", "Broadcom BCM957406 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16e9, "14e4-16e9", "Broadcom BCM957407", 0 ),
        PCI_ROM( 0x14e4, 0x16ea, "14e4-16ea", "Broadcom BCM957407 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16eb, "14e4-16eb", "Broadcom BCM957412 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x16ec, "14e4-16ec", "Broadcom BCM957414 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16ed, "14e4-16ed", "Broadcom BCM957414 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x16ee, "14e4-16ee", "Broadcom BCM957416 MF", 0 ),
        PCI_ROM( 0x14e4, 0x16ef, "14e4-16ef", "Broadcom BCM957416 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x16f0, "14e4-16f0", "Broadcom BCM957320", 0 ),
        PCI_ROM( 0x14e4, 0x16f1, "14e4-16f1", "Broadcom BCM957320", 0 ),
        PCI_ROM( 0x14e4, 0x1750, "14e4-1750", "Broadcom BCM957508", 0 ),
        PCI_ROM( 0x14e4, 0x1751, "14e4-1751", "Broadcom BCM957504", 0 ),
        PCI_ROM( 0x14e4, 0x1752, "14e4-1752", "Broadcom BCM957502", 0 ),
        PCI_ROM( 0x14e4, 0x1760, "14e4-1760", "Broadcom BCM957608", 0 ),
        PCI_ROM( 0x14e4, 0x1800, "14e4-1800", "Broadcom BCM957502 MF", 0 ),
        PCI_ROM( 0x14e4, 0x1801, "14e4-1801", "Broadcom BCM957504 MF", 0 ),
        PCI_ROM( 0x14e4, 0x1802, "14e4-1802", "Broadcom BCM957508 MF", 0 ),
        PCI_ROM( 0x14e4, 0x1803, "14e4-1803", "Broadcom BCM957502 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x1804, "14e4-1804", "Broadcom BCM957504 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x1805, "14e4-1805", "Broadcom BCM957508 RDMA MF", 0 ),
        PCI_ROM( 0x14e4, 0x1806, "14e4-1806", "Broadcom BCM9575xx VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1807, "14e4-1807", "Broadcom BCM9575xx RDMA VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1808, "14e4-1808", "Broadcom BCM9575xx HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1809, "14e4-1809", "Broadcom BCM9575xx RDMA HV VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x1819, "bcm95760x-1819", "Broadcom BCM95760x VF", BNXT_FLAG_PCI_VF ),
        PCI_ROM( 0x14e4, 0x181b, "bcm95760x-181b", "Broadcom BCM95760x HV VF", 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_config_word ( bp->pdev, PCI_COMMAND, &bp->cmd_reg );
        cmd_reg = bp->cmd_reg | PCI_COMMAND_INTX_DISABLE;
        pci_write_config_word ( bp->pdev, PCI_COMMAND, cmd_reg );
        pci_read_config_word ( bp->pdev, PCI_COMMAND, &cmd_reg );
 
        /* SSVID */
        pci_read_config_word ( bp->pdev, PCI_SUBSYSTEM_VENDOR_ID,
                               &bp->subsystem_vendor );
 
        /* SSDID */
        pci_read_config_word ( bp->pdev, PCI_SUBSYSTEM_ID,
                               &bp->subsystem_device );
 
        /* Function Number */
        pci_read_config_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 dev_p5_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 );
        writeq ( val, off );
}
 
static void dev_p7_db ( struct bnxt *bp, u32 idx, u32 xid, u32 flag, u32 epoch, u32 toggle )
{
        void *off;
        u64  val;
 
        off = ( void * ) ( bp->bar1 );
 
        val = ( ( u64 ) DBC_MSG_XID ( xid, flag ) << 32 ) |
                ( u64 ) DBC_MSG_IDX ( idx ) |
                ( u64 ) DBC_MSG_EPCH ( epoch ) |
                ( u64 ) DBC_MSG_TOGGLE ( toggle );
        writeq ( val, off );
}
 
static void bnxt_db_nq ( struct bnxt *bp )
{
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P7 ) )
                dev_p7_db ( bp, ( u32 ) bp->nq.cons_id,
                            ( u32 ) bp->nq_ring_id, DBC_DBC_TYPE_NQ_ARM,
                            ( u32 ) bp->nq.epoch, 0 );
        else if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5 ) )
                dev_p5_db ( bp, ( u32 ) bp->nq.cons_id,
                            ( u32 ) bp->nq_ring_id, DBC_DBC_TYPE_NQ_ARM );
        else
                writel ( CMPL_DOORBELL_KEY_CMPL, ( bp->bar1 + 0 ) );
}
 
static void bnxt_db_cq ( struct bnxt *bp )
{
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P7 ) )
                dev_p7_db ( bp, ( u32 ) bp->cq.cons_id,
                            ( u32 ) bp->cq_ring_id, DBC_DBC_TYPE_CQ,
                            ( u32 ) bp->cq.epoch, ( u32 )bp->nq.toggle );
        else if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5 ) )
                dev_p5_db ( bp, ( u32 ) bp->cq.cons_id,
                            ( u32 ) bp->cq_ring_id, DBC_DBC_TYPE_CQ);
        else
                writel ( CQ_DOORBELL_KEY_IDX ( bp->cq.cons_id ),
                         ( bp->bar1 + 0 ) );
}
 
static void bnxt_db_rx ( struct bnxt *bp, u32 idx )
{
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P7 ) )
                dev_p7_db ( bp, idx, ( u32 ) bp->rx_ring_id, DBC_DBC_TYPE_SRQ,
                            ( u32 ) bp->rx.epoch, 0 );
        else if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5 ) )
                dev_p5_db ( bp, idx, ( u32 ) bp->rx_ring_id, DBC_DBC_TYPE_SRQ );
        else
                writel ( RX_DOORBELL_KEY_RX | idx, ( bp->bar1 + 0 ) );
}
 
static void bnxt_db_tx ( struct bnxt *bp, u32 idx )
{
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P7 ) )
                dev_p7_db ( bp, idx, ( u32 )bp->tx_ring_id, DBC_DBC_TYPE_SQ,
                            ( u32 )bp->tx.epoch, 0 );
        else if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5 ) )
                dev_p5_db ( bp, idx, ( u32 )bp->tx_ring_id, DBC_DBC_TYPE_SQ );
        else
                writel ( 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;
}
 
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, physaddr_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      = 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_rx_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        = iob_dma ( iob );
}
 
static int bnxt_alloc_rx_iob ( struct bnxt *bp, u16 cons_id, u16 iob_idx )
{
        struct io_buffer *iob;
 
        iob = alloc_rx_iob ( BNXT_RX_STD_DMA_SZ, bp->dma );
        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 );
                /* If the ring has wrapped, flip the epoch bit */
                if ( iob_idx > cons_id )
                        bp->rx.epoch ^= 1;
                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 *rx_cmp,
        struct rx_pkt_cmpl_hi *rx_cmp_hi, u16 rx_len )
{
        struct rx_pkt_v3_cmpl *rx_cmp_v3 = ( struct rx_pkt_v3_cmpl * ) rx_cmp;
        struct rx_pkt_v3_cmpl_hi *rx_cmp_hi_v3 = ( struct rx_pkt_v3_cmpl_hi * ) rx_cmp_hi;
        u8  *rx_buf = ( u8 * ) iob->data;
        u16 err_flags;
        u8  ignore_chksum_err = 0;
        int i;
 
        if ( ( rx_cmp_v3->flags_type & RX_PKT_V3_CMPL_TYPE_MASK ) ==
             RX_PKT_V3_CMPL_TYPE_RX_L2_V3 ) {
                err_flags = rx_cmp_hi_v3->errors_v2 >> RX_PKT_V3_CMPL_HI_ERRORS_BUFFER_ERROR_SFT;
        } else
                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;
        }
 
        iob_put ( iob, rx_len );
 
        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 >= bp->cq.ring_cnt ) {
                /* Toggle completion bit when the ring wraps. */
                bp->cq.completion_bit ^= 1;
                bp->cq.epoch ^= 1;
                cons_id = cons_id - bp->cq.ring_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 & ( NUM_RX_BUFFERS - 1 );
        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, 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 * ) CQ_DMA_ADDR ( bp );
                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_hwrm ( 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->hwrm_max_req_len    = HWRM_MAX_REQ_LEN;
        bp->hwrm_cmd_timeout    = HWRM_CMD_DEFAULT_TIMEOUT;
        dbg_mem ( bp, func );
}
 
void bnxt_mm_init_rings ( struct bnxt *bp, const char *func )
{
        DBGP ( "%s\n", __func__ );
        memset ( bp->tx.bd_virt, 0, TX_RING_BUFFER_SIZE );
        memset ( bp->rx.bd_virt, 0, RX_RING_BUFFER_SIZE );
        memset ( bp->cq.bd_virt, 0, CQ_RING_BUFFER_SIZE );
        memset ( bp->nq.bd_virt, 0, NQ_RING_BUFFER_SIZE );
 
        bp->link_status = STATUS_LINK_DOWN;
        bp->wait_link_timeout = LINK_DEFAULT_TIMEOUT;
        bp->mtu = MAX_ETHERNET_PACKET_BUFFER_SIZE;
        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->nq.epoch            = 0;
        bp->nq.toggle           = 0;
        bp->cq.cons_id          = 0;
        bp->cq.completion_bit   = 0x1;
        bp->cq.epoch            = 0;
        bp->tx.prod_id          = 0;
        bp->tx.cons_id          = 0;
        bp->tx.epoch            = 0;
        bp->rx.cons_id          = 0;
        bp->rx.iob_cnt          = 0;
        bp->rx.epoch            = 0;
 
        bp->mtu                 = MAX_ETHERNET_PACKET_BUFFER_SIZE;
        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_rings_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        if ( bp->nq.bd_virt ) {
                dma_free ( &bp->nq_mapping, bp->nq.bd_virt, NQ_RING_BUFFER_SIZE );
                bp->nq.bd_virt = NULL;
        }
 
        if ( bp->cq.bd_virt ) {
                dma_free ( &bp->cq_mapping, bp->cq.bd_virt, CQ_RING_BUFFER_SIZE );
                bp->cq.bd_virt = NULL;
        }
 
        if ( bp->rx.bd_virt ) {
                dma_free ( &bp->rx_mapping, bp->rx.bd_virt, RX_RING_BUFFER_SIZE );
                bp->rx.bd_virt = NULL;
        }
 
        if ( bp->tx.bd_virt ) {
                dma_free ( &bp->tx_mapping, bp->tx.bd_virt, TX_RING_BUFFER_SIZE );
                bp->tx.bd_virt = NULL;
        }
 
        DBGP ( "- %s (  ): - Done\n", __func__ );
}
 
void bnxt_free_hwrm_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        if ( bp->hwrm_addr_dma ) {
                dma_free ( &bp->dma_mapped, bp->hwrm_addr_dma, DMA_BUFFER_SIZE );
                bp->hwrm_addr_dma = NULL;
        }
 
        if ( bp->hwrm_addr_resp ) {
                dma_free ( &bp->resp_mapping, bp->hwrm_addr_resp, RESP_BUFFER_SIZE );
                bp->hwrm_addr_resp = NULL;
        }
 
        if ( bp->hwrm_addr_req ) {
                dma_free ( &bp->req_mapping, bp->hwrm_addr_req, REQ_BUFFER_SIZE );
                bp->hwrm_addr_req = NULL;
        }
        DBGP ( "- %s (  ): - Done\n", __func__ );
}
 
int bnxt_alloc_hwrm_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        bp->hwrm_addr_req  = dma_alloc ( bp->dma, &bp->req_mapping,
                                         REQ_BUFFER_SIZE, REQ_BUFFER_SIZE );
        bp->hwrm_addr_resp = dma_alloc ( bp->dma, &bp->resp_mapping,
                                         RESP_BUFFER_SIZE, RESP_BUFFER_SIZE );
        bp->hwrm_addr_dma  = dma_alloc ( bp->dma, &bp->dma_mapped,
                                         DMA_BUFFER_SIZE, DMA_BUFFER_SIZE);
 
        if ( bp->hwrm_addr_req && bp->hwrm_addr_resp && bp->hwrm_addr_dma) {
                bnxt_mm_init_hwrm ( bp, __func__ );
                return STATUS_SUCCESS;
        }
 
        DBGP ( "- %s (  ): Failed\n", __func__ );
        bnxt_free_hwrm_mem ( bp );
        return -ENOMEM;
}
 
int bnxt_alloc_rings_mem ( struct bnxt *bp )
{
        DBGP ( "%s\n", __func__ );
        bp->tx.bd_virt = dma_alloc ( bp->dma, &bp->tx_mapping,
                                     TX_RING_BUFFER_SIZE, DMA_ALIGN_4K );
        bp->rx.bd_virt = dma_alloc ( bp->dma, &bp->rx_mapping,
                                     RX_RING_BUFFER_SIZE, DMA_ALIGN_4K );
        bp->cq.bd_virt = dma_alloc ( bp->dma, &bp->cq_mapping,
                                     CQ_RING_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        bp->nq.bd_virt = dma_alloc ( bp->dma, &bp->nq_mapping,
                                     NQ_RING_BUFFER_SIZE, BNXT_DMA_ALIGNMENT );
        if ( bp->tx.bd_virt && bp->rx.bd_virt &&
             bp->nq.bd_virt && bp->cq.bd_virt) {
                bnxt_mm_init_rings ( bp, __func__ );
                return STATUS_SUCCESS;
        }
 
        DBGP ( "- %s (  ): Failed\n", __func__ );
        bnxt_free_rings_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 = RESP_DMA_ADDR ( bp );
        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++ ) {
                writel ( ( ( u32 * ) req )[i],
                         ( bp->bar0 + GRC_COM_CHAN_BASE + ( i * 4 ) ) );
        }
        writel ( 0x1, ( bp->bar0 + GRC_COM_CHAN_BASE + GRC_COM_CHAN_TRIG ) );
}
 
static void short_hwrm_cmd_req ( struct bnxt *bp, u16 len, u16 req_type )
{
        struct hwrm_short_input sreq;
 
        memset ( &sreq, 0, sizeof ( struct hwrm_short_input ) );
        sreq.req_type  = req_type;
        sreq.signature = SHORT_REQ_SIGNATURE_SHORT_CMD;
        sreq.size      = len;
        sreq.req_addr  = REQ_DMA_ADDR ( bp );
 
        dbg_short_cmd ( ( u8 * ) &sreq, __func__,
                        sizeof ( struct hwrm_short_input ) );
        /* Ensure request buffer is flushed before writing short command */
        wmb();
        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 * ) REQ_DMA_ADDR ( bp );
        struct output *resp = ( struct output * ) RESP_DMA_ADDR ( bp );
        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 ) ||
             ( FLAG_TEST ( bp->flags, BNXT_FLAG_HWRM_SHORT_CMD_REQ ) ) )
                short_hwrm_cmd_req ( bp, len, req->req_type );
        else
                hwrm_write_req ( bp, req, ( u32 ) ( len / 4 ) );
 
        for ( idx = 0; idx < wait_cnt; idx++ ) {
                resp_len = resp->resp_len;
 
                if ( resp_len != 0 && resp_len <= ( u16 ) RESP_BUFFER_SIZE ) {
                        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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_ver_get_output * ) RESP_DMA_ADDR ( bp );
        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;
        if ( resp->dev_caps_cfg & SHORT_CMD_SUPPORTED )
                FLAG_SET ( bp->flags, BNXT_FLAG_HWRM_SHORT_CMD_SUPP );
        if ( resp->dev_caps_cfg & SHORT_CMD_REQUIRED )
                FLAG_SET ( bp->flags, BNXT_FLAG_HWRM_SHORT_CMD_REQ );
        bp->hwrm_max_ext_req_len = resp->max_ext_req_len;
        if ( ( bp->chip_num == CHIP_NUM_57508 ) ||
             ( bp->chip_num == CHIP_NUM_57504 ) ||
             ( bp->chip_num == CHIP_NUM_57502 ) ) {
                FLAG_SET ( bp->flags, BNXT_FLAG_IS_CHIP_P5 );
                FLAG_SET ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS );
        }
        if ( bp->chip_num == CHIP_NUM_57608 ) {
                FLAG_SET ( bp->flags, BNXT_FLAG_IS_CHIP_P7 );
                FLAG_SET ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS );
        }
        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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_func_resource_qcaps_output * ) RESP_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_func_qcaps_output * ) RESP_DMA_ADDR ( bp );
        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;
 
        if ( resp->flags & FUNC_QCAPS_OUTPUT_FLAGS_ERROR_RECOVERY_CAPABLE ) {
                bp->err_rcvry_supported = 1;
        }
 
        /* 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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_func_qcfg_output * ) RESP_DMA_ADDR ( bp );
        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_port_phy_qcaps_req ( struct bnxt *bp )
{
        u16 cmd_len = ( u16 )sizeof ( struct hwrm_port_phy_qcaps_input );
        struct hwrm_port_phy_qcaps_input *req;
        struct hwrm_port_phy_qcaps_output *resp;
        int rc;
 
        DBGP ( "%s\n", __func__ );
 
        req = ( struct hwrm_port_phy_qcaps_input * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_port_phy_qcaps_output * ) RESP_DMA_ADDR ( bp );
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_PORT_PHY_QCAPS, cmd_len );
        rc = wait_resp ( bp, bp->hwrm_cmd_timeout, cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "-s %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }
 
        if ( resp->flags2 & PORT_PHY_QCAPS_RESP_FLAGS2_SPEEDS2_SUPPORTED )
                FLAG_SET ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 );
 
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_FUNC_CFG, cmd_len );
        req->fid = ( u16 ) HWRM_NA_SIGNATURE;
        bnxt_hwrm_assign_resources ( bp );
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) {
                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_error_recovery_req ( struct bnxt *bp )
{
        struct hwrm_error_recovery_qcfg_input *req;
        struct hwrm_error_recovery_qcfg_output *resp;
        int rc = 0;
        u8 i = 0;
        u16 cmd_len = ( u16 ) sizeof ( struct hwrm_error_recovery_qcfg_input );
 
        DBGP ( "%s\n", __func__ );
        /* Set default error recovery heartbeat polling value (in 100ms)*/
        bp->er.drv_poll_freq = 100;
        if ( ! ( bp->err_rcvry_supported ) ) {
                return STATUS_SUCCESS;
        }
 
        req = ( struct hwrm_error_recovery_qcfg_input * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_error_recovery_qcfg_output * ) RESP_DMA_ADDR ( bp );
 
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_ER_QCFG, cmd_len );
 
        rc = wait_resp ( bp, HWRM_CMD_WAIT ( 6 ), cmd_len, __func__ );
        if ( rc ) {
                DBGP ( "- %s (  ): Failed\n", __func__ );
                return STATUS_FAILURE;
        }
 
        bp->er.flags = resp->flags;
        bp->er.drv_poll_freq        = resp->driver_polling_freq;
        bp->er.master_wait_period   = resp->master_wait_period;
        bp->er.normal_wait_period   = resp->normal_wait_period;
        bp->er.master_wait_post_rst = resp->master_wait_post_reset;
        bp->er.max_bailout_post_rst = resp->max_bailout_time;
 
        bp->er.fw_status_reg        = resp->fw_health_status_reg;
        bp->er.fw_hb_reg            = resp->fw_heartbeat_reg;
        bp->er.fw_rst_cnt_reg       = resp->fw_reset_cnt_reg;
        bp->er.recvry_cnt_reg       = resp->err_recovery_cnt_reg;
        bp->er.rst_inprg_reg        = resp->reset_inprogress_reg;
 
        bp->er.rst_inprg_reg_mask   = resp->reset_inprogress_reg_mask;
        bp->er.reg_array_cnt        = resp->reg_array_cnt;
 
        DBGP ( "flags               = 0x%x\n", resp->flags );
        DBGP ( "driver_polling_freq = 0x%x\n", resp->driver_polling_freq );
        DBGP ( "master_wait_period  = 0x%x\n", resp->master_wait_period );
        DBGP ( "normal_wait_period  = 0x%x\n", resp->normal_wait_period );
        DBGP ( "wait_post_reset     = 0x%x\n", resp->master_wait_post_reset );
        DBGP ( "bailout_post_reset  = 0x%x\n", resp->max_bailout_time );
        DBGP ( "reg_array_cnt       = %x\n", resp->reg_array_cnt );
 
        for ( i = 0; i < resp->reg_array_cnt; i++ ) {
                bp->er.rst_reg[i]         = resp->reset_reg[i];
                bp->er.rst_reg_val[i]     = resp->reset_reg_val[i];
                bp->er.delay_after_rst[i] = resp->delay_after_reset[i];
 
                DBGP ( "rst_reg     = %x    ", bp->er.rst_reg[i] );
                DBGP ( "rst_reg_val = %x    ", bp->er.rst_reg_val[i] );
                DBGP ( "rst_after_reset = %x\n", bp->er.delay_after_rst[i] );
        }
 
        return STATUS_SUCCESS;
}
 
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 * ) REQ_DMA_ADDR ( bp );
        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->flags = FUNC_DRV_RGTR_REQ_FLAGS_16BIT_VER_MODE;
 
        req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE;
        req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE;
        req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE;
        req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE;
 
        if ( bp->err_rcvry_supported ) {
                req->flags |= FUNC_DRV_RGTR_REQ_FLAGS_ERROR_RECOVERY_SUPPORT;
                req->flags |= FUNC_DRV_RGTR_REQ_FLAGS_MASTER_SUPPORT;
                req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY;
                req->async_event_fwd[0] |= 1 << ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY;
        }
 
        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 * ) REQ_DMA_ADDR ( bp );
        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 ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) )
                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 * ) REQ_DMA_ADDR ( bp );
                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 * ) REQ_DMA_ADDR ( bp );
                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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_cfa_l2_filter_alloc_output * ) RESP_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_port_phy_qcfg_output * ) RESP_DMA_ADDR ( bp );
        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 & SUPPORT_SPEEDS2 )
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) )
                        bp->auto_link_speeds2_mask = resp->auto_link_speeds2;
 
        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 * ) REQ_DMA_ADDR ( bp );
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_NVM_GET_VARIABLE, cmd_len );
        req->dest_data_addr = DMA_DMA_ADDR ( bp );
        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 * ) DMA_DMA_ADDR ( bp );
 
        DBGP ( "%s\n", __func__ );
        if ( ! ( FLAG_TEST (bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) ) {
                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 );
                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 );
        }
        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 );
        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 );
 
        /* Use LINK_SPEED_FW_xxx which is valid for CHIP_P7 and earlier devices */
        switch ( bp->link_set & LINK_SPEED_FW_MASK ) {
        case LINK_SPEED_FW_1G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_1000MBPS );
                break;
        case LINK_SPEED_FW_2_5G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_2500MBPS );
                break;
        case LINK_SPEED_FW_10G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_10GBPS );
                break;
        case LINK_SPEED_FW_25G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_25GBPS );
                break;
        case LINK_SPEED_FW_40G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_40GBPS );
                break;
        case LINK_SPEED_FW_50G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_50GBPS );
                break;
        case LINK_SPEED_FW_50G_PAM4:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_50PAM4GBPS );
                break;
        case LINK_SPEED_FW_100G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_100GBPS );
                break;
        case LINK_SPEED_FW_100G_PAM4:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_100PAM4GBPS );
                break;
        case LINK_SPEED_FW_100G_PAM4_112:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_100PAM4_112GBPS );
                break;
        case LINK_SPEED_FW_200G:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_200GBPS );
                break;
        case LINK_SPEED_FW_200G_PAM4_112:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_200PAM4_112GBPS );
                break;
        case LINK_SPEED_FW_400G_PAM4:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_400PAM4GBPS );
                break;
        case LINK_SPEED_FW_400G_PAM4_112:
                bp->medium = SET_MEDIUM_SPEED ( bp, MEDIUM_SPEED_400PAM4_112GBPS );
                break;
        case LINK_SPEED_FW_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_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 ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) || bp->vf )
                return STATUS_SUCCESS;
 
        req = ( struct hwrm_func_backing_store_qcfg_input * ) REQ_DMA_ADDR ( bp );
        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 ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) || bp->vf )
                return STATUS_SUCCESS;
 
        req = ( struct hwrm_func_backing_store_cfg_input * ) REQ_DMA_ADDR ( bp );
        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__ );
 
        req = ( struct hwrm_queue_qportcfg_input * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_queue_qportcfg_output * ) RESP_DMA_ADDR ( bp );
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_QUEUE_QPORTCFG, cmd_len );
        req->flags   = 0;
        req->port_id = bp->port_idx;
        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 * ) REQ_DMA_ADDR ( bp );
        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 force_link_speeds2 = 0;
        u16 force_pam4_link_speed = 0;
        u16 auto_link_speed_mask = 0;
        u16 auto_link_speeds2_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 * ) REQ_DMA_ADDR ( bp );
        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:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_10GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_10GB;
                }
                break;
        case MEDIUM_SPEED_25GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_25GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_25GB;
                }
                break;
        case MEDIUM_SPEED_40GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_40GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_40GB;
                }
                break;
        case MEDIUM_SPEED_50GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_50GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_50GB;
                }
                break;
        case MEDIUM_SPEED_50PAM4GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_50GB_PAM4_56;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_pam4_link_speed = PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_50GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED;
                }
                break;
        case MEDIUM_SPEED_100GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_100GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_link_speed = PORT_PHY_CFG_REQ_FORCE_LINK_SPEED_100GB;
                }
                break;
        case MEDIUM_SPEED_100PAM4GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_100GB_PAM4_56;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_pam4_link_speed = PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_100GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED;
                }
                break;
        case MEDIUM_SPEED_100PAM4_112GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_100GB_PAM4_112;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                }
                break;
        case MEDIUM_SPEED_200GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_200GB_PAM4_56;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                } else {
                        force_pam4_link_speed = PORT_PHY_CFG_REQ_FORCE_PAM4_LINK_SPEED_200GB;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_PAM4_LINK_SPEED;
                }
                break;
        case MEDIUM_SPEED_200PAM4_112GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_200GB_PAM4_112;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                }
                break;
        case MEDIUM_SPEED_400PAM4GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_400GB_PAM4_56;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                }
                break;
        case MEDIUM_SPEED_400PAM4_112GBPS:
                if ( FLAG_TEST ( bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) ) {
                        force_link_speeds2 = PORT_PHY_CFG_REQ_FORCE_LINK_SPEEDS2_400GB_PAM4_112;
                        enables |= PORT_PHY_CFG_REQ_ENABLES_FORCE_LINK_SPEEDS2;
                }
                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_DUPLEX |
                           PORT_PHY_CFG_REQ_ENABLES_AUTO_PAUSE;
                if ( FLAG_TEST (bp->flags, BNXT_FLAG_LINK_SPEEDS2 ) )
                        enables |= PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEEDS2_MASK;
                else
                        enables |= PORT_PHY_CFG_REQ_ENABLES_AUTO_LINK_SPEED_MASK;
                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;
                auto_link_speeds2_mask = bp->auto_link_speeds2_mask;
                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->force_pam4_link_speed = force_pam4_link_speed;
        req->force_link_speeds2 = force_link_speeds2;
        req->auto_mode = auto_mode;
        req->auto_duplex = auto_duplex;
        req->auto_pause = auto_pause;
        req->auto_link_speed_mask = auto_link_speed_mask;
        req->auto_link_speeds2_mask = auto_link_speeds2_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 ) );
        if ( !bp->er.er_rst_on )
                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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_stat_ctx_alloc_output * ) RESP_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) )
                return STATUS_SUCCESS;
 
        req = ( struct hwrm_ring_grp_alloc_input * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_ring_grp_alloc_output * ) RESP_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_ring_alloc_output * ) RESP_DMA_ADDR ( bp );
        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 ( ( (FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P7) ) || bp->vf ) );
                req->length     = ( u32 ) bp->nq.ring_cnt;
                req->logical_id = 0xFFFF; // Required value for Thor FW?
                req->page_tbl_addr = NQ_DMA_ADDR ( bp );
                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 = CQ_DMA_ADDR ( bp );
                if ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) )
                        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    = ( u16 ) bp->queue_id;
                req->stat_ctx_id = ( u32 ) bp->stat_ctx_id;
                req->cmpl_ring_id  = bp->cq_ring_id;
                req->page_tbl_addr = TX_DMA_ADDR ( bp );
                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 = RX_DMA_ADDR ( bp );
                if ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) )
                        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;
        }
        DBGP ( "- %s (  ): , type = %x, ring_id = %x\n", __func__, type, 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 ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) )
                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 ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) )
                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 * ) REQ_DMA_ADDR ( bp );
        resp = ( struct hwrm_vnic_alloc_output * ) RESP_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        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 * ) REQ_DMA_ADDR ( bp );
        hwrm_init ( bp, ( void * ) req, ( u16 ) HWRM_VNIC_CFG, cmd_len );
        req->enables = VNIC_CFG_REQ_ENABLES_MRU;
        req->mru = bp->mtu;
 
        if ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) {
                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->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 );
}
 
static int bnxt_get_link_state ( struct bnxt *bp )
{
        int rc  = 0;
 
        DBGP ( "%s \n", __func__ );
        rc = bnxt_hwrm_port_phy_qcfg ( bp, PHY_STATUS );
 
        return rc;
}
 
typedef int ( *hwrm_func_t ) ( struct bnxt *bp );
 
hwrm_func_t bring_up_init[] = {
        bnxt_hwrm_ver_get,              /* HWRM_VER_GET                 */
        bnxt_hwrm_func_qcaps_req,       /* HWRM_FUNC_QCAPS              */
        bnxt_hwrm_func_qcfg_req,        /* HWRM_FUNC_QCFG               */
        bnxt_get_device_address,        /* HW MAC address               */
        bnxt_get_link_state,
        NULL
};
 
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     */
        bnxt_hwrm_func_drv_unrgtr,      /* HWRM_FUNC_DRV_UNRGTR         */
        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_qcaps_req,       /* HWRM_FUNC_QCAPS              */
        bnxt_hwrm_func_drv_rgtr,        /* HWRM_FUNC_DRV_RGTR           */
        bnxt_hwrm_error_recovery_req,   /* HWRM_ERROR_RECOVERY_REQ      */
        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_port_phy_qcaps_req,   /* HWRM_PORT_PHY_QCAPS  */
        bnxt_hwrm_func_qcfg_req,        /* HWRM_FUNC_QCFG               */
        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, int flag )
{
        hwrm_func_t *ptr;
        int ret;
        u8 Status = 0;
 
        for ( ptr = cmds; *ptr; ++ptr ) {
                memset ( ( void * ) REQ_DMA_ADDR ( bp ),  0, REQ_BUFFER_SIZE );
                memset ( ( void * ) RESP_DMA_ADDR ( bp ), 0, RESP_BUFFER_SIZE );
                ret = ( *ptr ) ( bp );
                if ( ret ) {
                        DBGP ( "- %s (  ): Failed\n", __func__ );
                        Status = STATUS_FAILURE;
 
                        // Initialization path failure,
                        // return failure immediately
                        // else cleanup the resources
                        if ( flag )
                                return STATUS_FAILURE;
                }
        }
        return Status;
}
 
#define bnxt_down_chip( bp )    bnxt_hwrm_run ( bring_down_chip, bp, 0 )
#define bnxt_up_chip( bp )      bnxt_hwrm_run ( bring_up_chip, bp, 1 )
#define bnxt_down_nic( bp )     bnxt_hwrm_run ( bring_down_nic, bp, 0 )
#define bnxt_up_nic( bp )       bnxt_hwrm_run ( bring_up_nic, bp, 1 )
#define bnxt_up_init( bp )      bnxt_hwrm_run ( bring_up_init, bp, 1 )
 
static int bnxt_open ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;
 
        DBGP ( "%s\n", __func__ );
 
        /* Allocate and Initialise device specific parameters */
        if ( bnxt_alloc_rings_mem ( bp ) != 0 ) {
                DBGP ( "- %s (  ): bnxt_alloc_rings_mem Failed\n", __func__ );
                return -ENOMEM;
        }
 
        bnxt_mm_nic ( bp );
 
        if ( bnxt_up_chip ( bp ) != 0 ) {
                DBGP ( "- %s (  ): bnxt_up_chip Failed\n", __func__ );
                goto err_bnxt_open;
        }
 
        if ( bnxt_up_nic ( bp ) != 0 ) {
                DBGP ( "- %s (  ): bnxt_up_nic\n", __func__);
                goto err_bnxt_open;
        }
 
        return 0;
 
err_bnxt_open:
        bnxt_down_nic ( bp );
 
        bnxt_free_rings_mem ( bp );
 
        return -1;
}
 
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 );
 
}
 
static int bnxt_tx ( struct net_device *dev, struct io_buffer *iob )
{
        struct bnxt *bp = dev->priv;
        u16 len, entry;
        physaddr_t mapping;
 
        if ( bp->er.er_rst_on ) {
                /* Error recovery has been initiated */
                return -EBUSY;
        }
 
        if ( bnxt_tx_avail ( bp ) < 1 ) {
                DBGP ( "- %s (  ): Failed no bd's available\n", __func__ );
                return -ENOBUFS;
        }
 
        mapping = iob_dma ( iob );
        bnxt_tx_adjust_pkt ( bp, iob );
        entry = bp->tx.prod_id;
        len = iob_len ( iob );
        bp->tx.iob[entry] = iob;
        bnxt_set_txq ( bp, entry, mapping, len );
        entry = NEXT_IDX ( entry, bp->tx.ring_cnt );
        /* If the ring has wrapped, toggle the epoch bit */
        if ( bp->tx.prod_id > entry )
                bp->tx.epoch ^= 1;
        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;
                bp->nq.epoch ^= 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 )
{
        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 );
}
 
#define BNXT_FW_HEALTH_WIN_OFF  0x3000
#define BNXT_REG_WINDOW_BASE    0x400
#define BNXT_GRC_BASE_MASK      0xfff
#define BNXT_GRC_OFFSET_MASK    0xffc
 
u32 bnxt_er_reg_write ( struct bnxt *bp, u32 reg_addr, u32 reg_val)
{
        u32 reg_base = 0;
 
        reg_base = reg_addr & ~BNXT_GRC_BASE_MASK;
 
        writel ( reg_base, bp->bar0 + BNXT_REG_WINDOW_BASE + 8 );
 
        writel ( reg_val, bp->bar0 + ( BNXT_FW_HEALTH_WIN_OFF +
                 ( reg_addr & BNXT_GRC_OFFSET_MASK ) ) );
 
        DBGP ("bnxt_er_reg_write: reg_addr = %x, reg_val = %x\n", reg_addr, reg_val);
        return reg_val;
}
 
u32 bnxt_er_reg_read ( struct bnxt *bp, u32 reg_addr)
{
        u32 reg_val = 0;
        u32 reg_base = 0;
 
        reg_base = reg_addr & ~BNXT_GRC_BASE_MASK;
 
        writel ( reg_base, bp->bar0 + BNXT_REG_WINDOW_BASE + 8 );
 
        reg_val = readl ( bp->bar0 + ( BNXT_FW_HEALTH_WIN_OFF +
                          ( reg_addr & BNXT_GRC_OFFSET_MASK ) ) );
 
        DBGP ("bnxt_er_reg_read: reg_addr = %x, reg_val = %x\n", reg_addr, reg_val);
        return reg_val;
}
 
u32 bnxt_er_get_reg_val ( struct bnxt *bp, u32 reg_addr, u32 reg_type, u32 mask )
{
        u32 reg_val = 0;
 
        switch ( reg_type ) {
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_PCIE_CFG:
                        pci_read_config_dword ( bp->pdev, reg_addr & mask, &reg_val );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_GRC:
                        reg_val = bnxt_er_reg_read ( bp, reg_addr );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_BAR0:
                        reg_val = readl ( bp->bar0 + ( reg_addr & mask ) );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_BAR1:
                        reg_val = readl ( bp->bar1 + ( reg_addr & mask ) );
                        break;
                default:
                        break;
        }
        DBGP ( "read_reg_val bp %p addr %x type %x : reg_val = %x\n", bp, reg_addr, reg_type, reg_val );
        return reg_val;
}
 
void bnxt_rst_reg_val ( struct bnxt *bp, u32 reg_addr, u32 reg_val )
{
        u32 mask = ER_QCFG_RESET_REG_ADDR_MASK;
        u32 reg_type = reg_addr & ER_QCFG_RESET_REG_ADDR_SPACE_MASK;
 
        switch ( reg_type ) {
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_PCIE_CFG:
                        pci_write_config_dword ( bp->pdev, reg_addr & mask, reg_val );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_GRC:
                        bnxt_er_reg_write ( bp, reg_addr, reg_val );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_BAR0:
                        writel ( reg_val, bp->bar0 + ( reg_addr & mask ) );
                        break;
                case ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_BAR1:
                        writel ( reg_val, bp->bar1 + ( reg_addr & mask ) );
                        break;
                default:
                        break;
        }
}
 
void bnxt_rst_er_registers ( struct bnxt *bp )
{
        u32 delay_time = 0;
        u8 i;
 
        for ( i = 0; i < bp->er.reg_array_cnt; i++ ) {
                bnxt_rst_reg_val ( bp, bp->er.rst_reg[i], bp->er.rst_reg_val[i] );
 
                delay_time = bp->er.delay_after_rst[i];
                if ( delay_time ) {
                        udelay ( delay_time * 100000 );
                }
        }
 
}
 
void bnxt_er_task ( struct bnxt* bp, u8 hb_task )
{
        u32 present_hb_cnt;
        unsigned short pci_command, new_command;
        u8 i;
 
        DBGP ( "%s(hb_task: %d)\n", __func__, hb_task );
        if ( bp->er.er_rst_on ) {
                if ( timer_running ( &bp->wait_timer) ) {
                        /* Reset already in progress */
                        return;
                }
        }
 
        if ( hb_task ) {
                present_hb_cnt = bnxt_er_get_reg_val ( bp,
                        bp->er.fw_hb_reg,
                        bp->er.fw_hb_reg & ER_QCFG_FW_HB_REG_ADDR_SPACE_MASK,
                        ER_QCFG_FW_HB_REG_ADDR_MASK ) ;
 
                if ( present_hb_cnt != bp->er.last_fw_hb ) {
                        bp->er.last_fw_hb = present_hb_cnt;
                        return;
                }
        }
 
        /* Heartbeat not incrementing, trigger error recovery */
        DBGP ( "%s(): Trigger Error Recovery\n", __func__ );
        bp->er.er_rst_on = 1;
        /* Set a recovery phase wait timer */
        start_timer_fixed ( &bp->wait_timer, BNXT_ER_WAIT_TIMER_INTERVAL ( bp ) );
 
        /* Disable bus master */
        pci_read_config_word ( bp->pdev, PCI_COMMAND, &pci_command );
        new_command = pci_command & ~PCI_COMMAND_MASTER;
        pci_write_config_word ( bp->pdev, PCI_COMMAND, new_command );
 
        /* Free up resources */
        bnxt_free_rx_iob ( bp );
 
        /* wait for firmware to be operational */
        udelay ( bp->er.rst_min_dsecs * 100000 );
 
        /* Reconfigure the PCI attributes */
        pci_write_config_word ( bp->pdev, PCI_COMMAND, pci_command );
 
        if ( hb_task ) {
                if ( bp->er.master_pf ) {
                        /* wait for master func wait period */
                        udelay ( bp->er.master_wait_period * 100000 );
 
                        /* Reset register values */
                        bnxt_rst_er_registers ( bp );
 
                        /* wait for master wait post reset  */
                        udelay ( bp->er.master_wait_post_rst * 100000 );
                } else {
                        /* wait for normal func wait period */
                        udelay ( bp->er.normal_wait_period * 100000 );
                }
        }
 
        for ( i = 0; i < bp->er.max_bailout_post_rst; i++ ) {
                bp->er.fw_health_status = bnxt_er_get_reg_val ( bp,
                                bp->er.fw_status_reg,
                                bp->er.fw_status_reg & ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_MASK,
                                ER_QCFG_FW_HEALTH_REG_ADDR_MASK );
 
                if ( bp->er.fw_health_status == FW_STATUS_REG_CODE_READY )
                        break;
 
                /* wait for 1 second */
                udelay ( 1000000 );
        }
 
        if ( bp->er.fw_health_status == FW_STATUS_REG_CODE_READY ) {
                /* Initialize resources */
                bnxt_mm_nic ( bp );
 
                /* Get device specific information */
                bnxt_up_chip ( bp );
 
                /* Allocate queues */
                bnxt_up_nic ( bp );
        }
 
        /* Clear Reset in progress flag */
        bp->er.er_rst_on = 0;
        stop_timer ( &bp->wait_timer );
}
 
void bnxt_process_er_event ( struct bnxt *bp,
                struct hwrm_async_event_cmpl *evt )
{
        if ( evt->event_data1 &
                        ASYNC_EVENT_CMPL_ER_EVENT_DATA1_RECOVERY_ENABLED ) {
                bp->er.driver_initiated_recovery = 1;
                start_timer_fixed ( &bp->task_timer, BNXT_ER_TIMER_INTERVAL ( bp ) );
 
        } else {
                bp->er.driver_initiated_recovery = 0;
                stop_timer ( &bp->task_timer );
        }
 
        if ( evt->event_data1 &
                        ASYNC_EVENT_CMPL_ER_EVENT_DATA1_MASTER_FUNC ) {
                bp->er.master_pf = 1;
        } else {
                bp->er.master_pf = 0;
        }
 
        bp->er.fw_health_status = bnxt_er_get_reg_val ( bp,
                bp->er.fw_status_reg,
                bp->er.fw_status_reg & ER_QCFG_FW_HEALTH_REG_ADDR_SPACE_MASK,
                ER_QCFG_FW_HEALTH_REG_ADDR_MASK );
        /* Intialize the last fw heart beat count */
        bp->er.last_fw_hb = 0;
        bp->er.last_fw_rst_cnt = bnxt_er_get_reg_val ( bp,
                bp->er.fw_rst_cnt_reg,
                bp->er.fw_rst_cnt_reg & ER_QCFG_FW_RESET_CNT_REG_ADDR_SPACE_MASK,
                ER_QCFG_FW_RESET_CNT_REG_ADDR_MASK );
        bp->er.rst_in_progress = bnxt_er_get_reg_val ( bp,
                bp->er.rst_inprg_reg,
                bp->er.rst_inprg_reg & ER_QCFG_RESET_INPRG_REG_ADDR_SPACE_MASK,
                ER_QCFG_RESET_INPRG_REG_ADDR_MASK );
        bp->er.err_recovery_cnt = bnxt_er_get_reg_val ( bp,
                bp->er.recvry_cnt_reg,
                bp->er.recvry_cnt_reg & ER_QCFG_RCVRY_CNT_REG_ADDR_SPACE_MASK,
                ER_QCFG_RCVRY_CNT_REG_ADDR_MASK );
}
 
void bnxt_process_reset_notify_event ( struct bnxt *bp,
                struct hwrm_async_event_cmpl *evt )
{
        DBGP ( "Reset Notify Async event" );
        if ( ( ( evt->event_data1 ) &
                        ASYNC_EVENT_CMPL_EVENT_DATA1_REASON_CODE_MASK ) ==
                        ASYNC_EVENT_CMPL_EVENT_DATA1_REASON_CODE_FATAL) {
                DBGP ( " error recovery initiated\n" );
                bp->er.rst_min_dsecs = evt->timestamp_lo;
                bp->er.rst_max_dsecs = evt->timestamp_hi;
 
                if ( bp->er.rst_min_dsecs == 0 )
                        bp->er.rst_min_dsecs = ER_DFLT_FW_RST_MIN_DSECS;
 
                if ( bp->er.rst_max_dsecs == 0 )
                        bp->er.rst_max_dsecs =  ER_DFLT_FW_RST_MAX_DSECS;
 
                // Trigger Error recovery
                bp->er.er_initiate = 1;
        }
}
 
void bnxt_link_speed_evt ( struct bnxt *bp, struct hwrm_async_event_cmpl *evt )
{
        if ( evt->event_data1 & ASYNC_EVENT_CMPL_LINK_SPEED_CHANGE_FORCE ) {
                DBGP ("bnxt_link_speed_evt: event data = %lx\n",
                      ( evt->event_data1 & ASYNC_EVENT_CMPL_LINK_SPEED_CHANGE_MASK ));
        }
 
        if ( bnxt_hwrm_port_phy_qcfg ( bp, QCFG_PHY_ALL ) != STATUS_SUCCESS ) {
                return;
        }
 
        bnxt_set_link ( bp );
        dbg_link_info ( bp );
        dbg_link_status ( bp );
}
 
void bnxt_link_speed_chg_evt ( struct bnxt *bp, struct hwrm_async_event_cmpl *evt )
{
        if ( ( evt->event_data1 & ASYNC_EVENT_CMPL_LINK_SPEED_CFG_CHANGE_SUPPORTED_LINK_SPEEDS_CHANGE ) ||
                ( evt->event_data1 & ASYNC_EVENT_CMPL_LINK_SPEED_CFG_CHANGE_ILLEGAL_LINK_SPEED_CFG ) ) {
                if ( bnxt_hwrm_port_phy_qcfg ( bp, QCFG_PHY_ALL ) != STATUS_SUCCESS ) {
                        return;
                }
        }
 
        bnxt_set_link ( bp );
        dbg_link_info ( bp );
        dbg_link_status ( bp );
}
 
void bnxt_port_phy_chg_evt ( struct bnxt *bp, struct hwrm_async_event_cmpl *evt )
{
        if ( ( evt->event_data1 & ASYNC_EVENT_CMPL_PORT_PHY_CFG_CHANGE_FEC_CFG_CHANGE ) ||
                ( evt->event_data1 & ASYNC_EVENT_CMPL_PORT_PHY_CFG_CHANGE_EEE_CFG_CHANGE ) ||
                ( evt->event_data1 & ASYNC_EVENT_CMPL_PORT_PHY_CFG_CHANGE_PAUSE_CFG_CHANGE)) {
                if ( bnxt_hwrm_port_phy_qcfg ( bp, QCFG_PHY_ALL ) != STATUS_SUCCESS ) {
                        return;
                }
        }
 
        bnxt_set_link ( bp );
        dbg_link_info ( bp );
        dbg_link_status ( bp );
}
 
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;
        struct hwrm_async_event_cmpl *evt;
 
        while ( done == SERVICE_NEXT_CQ_BD ) {
                cmp = ( struct cmpl_base * ) BD_NOW ( CQ_DMA_ADDR ( bp ),
                                                      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, bp->nq.toggle );
 
                switch ( cq_type ) {
                case CMPL_BASE_TYPE_TX_L2:
                        tx = ( struct tx_cmpl * ) cmp;
                        bnxt_tx_complete ( dev, ( u16 ) tx->opaque );
                        bnxt_adv_cq_index ( bp, 1 );
                        break;
                case CMPL_BASE_TYPE_STAT_EJECT:
                        bnxt_adv_cq_index ( bp, 1 );
                        break;
                case CMPL_BASE_TYPE_RX_L2:
                case CMPL_BASE_TYPE_RX_L2_V3:
                        done = bnxt_rx_complete ( dev,
                                ( struct rx_pkt_cmpl * ) cmp );
                        break;
                case CMPL_BASE_TYPE_HWRM_ASYNC_EVENT:
                        evt = ( struct hwrm_async_event_cmpl * ) cmp;
                        switch ( evt->event_id ) {
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
                                bnxt_link_evt ( bp,
                                                ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
                                bnxt_link_speed_evt ( bp,
                                                      ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
                                bnxt_link_speed_chg_evt ( bp,
                                                          ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE:
                                bnxt_port_phy_chg_evt ( bp,
                                                        ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
                                bnxt_process_er_event ( bp,
                                                        ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
                                bnxt_process_reset_notify_event ( bp,
                                                                  ( struct hwrm_async_event_cmpl * ) cmp );
                                break;
                        default:
                                break;
                        }
                        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;
        struct hwrm_async_event_cmpl *evt;
 
        if ( ! ( FLAG_TEST ( bp->flags, BNXT_FLAG_IS_CHIP_P5_PLUS ) ) )
                return;
 
        while ( done == SERVICE_NEXT_NQ_BD ) {
                nqp = ( struct nq_base * ) BD_NOW ( NQ_DMA_ADDR ( bp ),
                                                    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 );
                bp->nq.toggle = ( ( nqp->type & NQ_CN_TOGGLE_MASK ) >> NQ_CN_TOGGLE_SFT );
                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:
                        evt = ( struct hwrm_async_event_cmpl * ) nqp;
                        switch ( evt->event_id ) {
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_STATUS_CHANGE:
                                bnxt_link_evt ( bp,
                                                ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CHANGE:
                                bnxt_link_speed_evt ( bp,
                                                      ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_LINK_SPEED_CFG_CHANGE:
                                bnxt_link_speed_chg_evt ( bp,
                                                          ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_PORT_PHY_CFG_CHANGE:
                                bnxt_port_phy_chg_evt ( bp,
                                                        ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_ERROR_RECOVERY:
                                bnxt_process_er_event ( bp,
                                                        ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        case ASYNC_EVENT_CMPL_EVENT_ID_RESET_NOTIFY:
                                bnxt_process_reset_notify_event ( bp,
                                                                  ( struct hwrm_async_event_cmpl * ) nqp );
                                break;
                        default:
                                break;
                        }
                        bnxt_adv_nq_index ( bp, 1 );
                        break;
                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_er_task_timer ( struct retry_timer *timer, int over __unused )
{
        struct bnxt *bp = container_of ( timer, struct bnxt, task_timer );
 
        /* Restart timer */
        start_timer_fixed ( timer, BNXT_ER_TIMER_INTERVAL ( bp ) );
        if ( bp->er.driver_initiated_recovery ) {
                bnxt_er_task ( bp, 1 );
        }
}
 
static void bnxt_er_wait_timer ( struct retry_timer *timer, int over __unused )
{
        struct bnxt *bp = container_of (timer, struct bnxt, wait_timer );
        /* The sole function of this timer is to wait for the specified
         * amount of time to complete error recovery phase
         */
        stop_timer ( &bp->wait_timer );
        return;
}
 
static void bnxt_poll ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;
 
        mb (  );
        bnxt_service_nq ( dev );
        bnxt_service_cq ( dev );
 
        if ( bp->er.er_initiate ) {
                bnxt_er_task ( bp, 0 );
                bp->er.er_initiate = 0;
        }
 
}
 
static void bnxt_close ( struct net_device *dev )
{
        struct bnxt *bp = dev->priv;
 
        DBGP ( "%s\n", __func__ );
        stop_timer ( &bp->task_timer );
        stop_timer ( &bp->wait_timer );
 
        bnxt_down_nic ( bp );
 
        bnxt_free_rings_mem ( bp );
 
}
 
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;
 
        timer_init ( &bp->task_timer, bnxt_er_task_timer, &netdev->refcnt );
        timer_init ( &bp->wait_timer, bnxt_er_wait_timer, &netdev->refcnt );
 
        /* Configure DMA */
        bp->dma = &pci->dma;
        netdev->dma = bp->dma;
 
        /* Enable PCI device */
        adjust_pci_device ( pci );
 
        /* Get PCI Information */
        bnxt_get_pci_info ( bp );
 
        /* Allocate HWRM memory */
        if ( ( err = bnxt_alloc_hwrm_mem ( bp ) ) != 0 )
                goto err_alloc_hwrm;
 
        bp->link_status         = STATUS_LINK_DOWN;
        bp->wait_link_timeout   = LINK_DEFAULT_TIMEOUT;
        if ( ( err = bnxt_up_init ( bp ) ) != 0 )
                goto err_up_init;
 
        /* Register Network device */
        if ( ( err = register_netdev ( netdev ) ) != 0 ) {
                DBGP ( "- %s (  ): register_netdev Failed\n", __func__ );
                goto err_register_netdev;
        }
 
        /* Set Initial Link State */
        bnxt_set_link ( bp );
 
        return 0;
 
        unregister_netdev ( netdev );
err_register_netdev:
err_up_init:
        bnxt_free_hwrm_mem ( bp );
err_alloc_hwrm:
        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 );
 
        /* Free HWRM buffers */
        bnxt_free_hwrm_mem ( bp );
 
        /* iounmap PCI BAR ( s ) */
        bnxt_down_pci ( bp );
 
        /* Stop network device */
        netdev_nullify ( netdev );
 
        /* Drop refernce to network device */
        netdev_put ( netdev );
        DBGP ( "%s - Done\n", __func__ );
}
 
/* 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,
};