io/mac/mac_stat.c

/*
 * CDDL HEADER START
 *
 * The contents of this file are subject to the terms of the
 * Common Development and Distribution License (the "License").
 * You may not use this file except in compliance with the License.
 *
 * You can obtain a copy of the license at usr/src/OPENSOLARIS.LICENSE
 * or http://www.opensolaris.org/os/licensing.
 * See the License for the specific language governing permissions
 * and limitations under the License.
 *
 * When distributing Covered Code, include this CDDL HEADER in each
 * file and include the License file at usr/src/OPENSOLARIS.LICENSE.
 * If applicable, add the following below this CDDL HEADER, with the
 * fields enclosed by brackets "[]" replaced with your own identifying
 * information: Portions Copyright [yyyy] [name of copyright owner]
 *
 * CDDL HEADER END
 */
/*
 * Copyright 2010 Sun Microsystems, Inc.  All rights reserved.
 * Use is subject to license terms.
 */

/*
 * MAC Services Module
 */

#include <sys/types.h>
#include <sys/sysmacros.h>
#include <sys/stream.h>
#include <sys/kstat.h>
#include <sys/mac.h>
#include <sys/mac_impl.h>
#include <sys/mac_client_impl.h>
#include <sys/mac_stat.h>
#include <sys/mac_soft_ring.h>
#include <sys/vlan.h>

#define MAC_KSTAT_NAME  "mac"
#define MAC_KSTAT_CLASS "net"

enum mac_stat {
    MAC_STAT_LCL,
    MAC_STAT_LCLBYTES,
    MAC_STAT_INTRS,
    MAC_STAT_INTRBYTES,
    MAC_STAT_POLLS,
    MAC_STAT_POLLBYTES,
    MAC_STAT_RXSDROPS,
    MAC_STAT_CHU10,
    MAC_STAT_CH10T50,
    MAC_STAT_CHO50,
    MAC_STAT_BLOCK,
    MAC_STAT_UNBLOCK,
    MAC_STAT_TXSDROPS,
    MAC_STAT_TX_ERRORS,
    MAC_STAT_MACSPOOFED,
    MAC_STAT_IPSPOOFED,
    MAC_STAT_DHCPSPOOFED,
    MAC_STAT_RESTRICTED,
    MAC_STAT_DHCPDROPPED,
    MAC_STAT_MULTIRCVBYTES,
    MAC_STAT_BRDCSTRCVBYTES,
    MAC_STAT_MULTIXMTBYTES,
    MAC_STAT_BRDCSTXMTBYTES
};

static mac_stat_info_t  i_mac_si[] = {
    { MAC_STAT_IFSPEED, "ifspeed",  KSTAT_DATA_UINT64,  0 },
    { MAC_STAT_MULTIRCV,    "multircv", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_BRDCSTRCV,   "brdcstrcv",    KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_MULTIXMT,    "multixmt", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_BRDCSTXMT,   "brdcstxmt",    KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_NORCVBUF,    "norcvbuf", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_IERRORS, "ierrors",  KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_UNKNOWNS,    "unknowns", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_NOXMTBUF,    "noxmtbuf", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_OERRORS, "oerrors",  KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_COLLISIONS,  "collisions",   KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_UNDERFLOWS,  "uflo",     KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_OVERFLOWS,   "oflo",     KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_OBYTES,  "obytes",   KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_OPACKETS,    "opackets", KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_RBYTES,  "rbytes64", KSTAT_DATA_UINT64,  0 },
    { MAC_STAT_IPACKETS,    "ipackets64",   KSTAT_DATA_UINT64,  0 },
    { MAC_STAT_OBYTES,  "obytes64", KSTAT_DATA_UINT64,  0 },
    { MAC_STAT_OPACKETS,    "opackets64",   KSTAT_DATA_UINT64,  0 }
};
#define MAC_NKSTAT \
    (sizeof (i_mac_si) / sizeof (mac_stat_info_t))

static mac_stat_info_t  i_mac_mod_si[] = {
    { MAC_STAT_LINK_STATE,  "link_state",   KSTAT_DATA_UINT32,
        (uint64_t)LINK_STATE_UNKNOWN },
    { MAC_STAT_LINK_UP, "link_up",  KSTAT_DATA_UINT32,  0 },
    { MAC_STAT_PROMISC, "promisc",  KSTAT_DATA_UINT32,  0 }
};
#define MAC_MOD_NKSTAT \
    (sizeof (i_mac_mod_si) / sizeof (mac_stat_info_t))

#define MAC_MOD_KSTAT_OFFSET    0
#define MAC_KSTAT_OFFSET    MAC_MOD_KSTAT_OFFSET + MAC_MOD_NKSTAT
#define MAC_TYPE_KSTAT_OFFSET   MAC_KSTAT_OFFSET + MAC_NKSTAT

/*
 * Definitions for per rx ring statistics
 */
static mac_stat_info_t  i_mac_rx_ring_si[] = {
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_HDROPS,  "hdrops",   KSTAT_DATA_UINT64,  0}
};
#define MAC_RX_RING_NKSTAT \
    (sizeof (i_mac_rx_ring_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for per tx ring statistics
 */
static mac_stat_info_t  i_mac_tx_ring_si[] = {
    { MAC_STAT_OBYTES,  "obytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OPACKETS,    "opackets", KSTAT_DATA_UINT64,  0}
};
#define MAC_TX_RING_NKSTAT \
    (sizeof (i_mac_tx_ring_si) / sizeof (mac_stat_info_t))


/*
 * Definitions for per software lane tx statistics
 */
static mac_stat_info_t  i_mac_tx_swlane_si[] = {
    { MAC_STAT_OBYTES,  "obytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OPACKETS,    "opackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OERRORS, "oerrors",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_BLOCK,   "blockcnt", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_UNBLOCK, "unblockcnt",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_TXSDROPS,    "txsdrops", KSTAT_DATA_UINT64,  0}
};
#define MAC_TX_SWLANE_NKSTAT \
    (sizeof (i_mac_tx_swlane_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for per software lane rx statistics
 */
static mac_stat_info_t  i_mac_rx_swlane_si[] = {
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_LCL,     "local",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_LCLBYTES,    "localbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRS,   "intrs",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRBYTES,   "intrbytes",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RXSDROPS,    "rxsdrops", KSTAT_DATA_UINT64,  0}
};
#define MAC_RX_SWLANE_NKSTAT \
    (sizeof (i_mac_rx_swlane_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for per hardware lane rx statistics
 */
static mac_stat_info_t  i_mac_rx_hwlane_si[] = {
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRS,   "intrs",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRBYTES,   "intrbytes",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_POLLS,   "polls",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_POLLBYTES,   "pollbytes",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RXSDROPS,    "rxsdrops", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CHU10,   "chainunder10", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CH10T50, "chain10to50",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CHO50,   "chainover50",  KSTAT_DATA_UINT64,  0}
};
#define MAC_RX_HWLANE_NKSTAT \
    (sizeof (i_mac_rx_hwlane_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for misc statistics
 */
static mac_stat_info_t  i_mac_misc_si[] = {
    { MAC_STAT_MULTIRCV,    "multircv", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_BRDCSTRCV,   "brdcstrcv",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_MULTIXMT,    "multixmt", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_BRDCSTXMT,   "brdcstxmt",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_MULTIRCVBYTES, "multircvbytes",   KSTAT_DATA_UINT64, 0},
    { MAC_STAT_BRDCSTRCVBYTES, "brdcstrcvbytes", KSTAT_DATA_UINT64, 0},
    { MAC_STAT_MULTIXMTBYTES,  "multixmtbytes",  KSTAT_DATA_UINT64, 0},
    { MAC_STAT_BRDCSTXMTBYTES, "brdcstxmtbytes", KSTAT_DATA_UINT64, 0},
    { MAC_STAT_TX_ERRORS,   "txerrors", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_MACSPOOFED,  "macspoofed",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_IPSPOOFED,   "ipspoofed",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_DHCPSPOOFED, "dhcpspoofed",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RESTRICTED,  "restricted",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_DHCPDROPPED, "dhcpdropped",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_LCL,     "local",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_LCLBYTES,    "localbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRS,   "intrs",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_INTRBYTES,   "intrbytes",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_POLLS,   "polls",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_POLLBYTES,   "pollbytes",    KSTAT_DATA_UINT64,  0},
    { MAC_STAT_RXSDROPS,    "rxsdrops", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CHU10,   "chainunder10", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CH10T50, "chain10to50",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_CHO50,   "chainover50",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OBYTES,  "obytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OPACKETS,    "opackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OERRORS, "oerrors",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_BLOCK,   "blockcnt", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_UNBLOCK, "unblockcnt",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_TXSDROPS,    "txsdrops", KSTAT_DATA_UINT64,  0}
};
#define MAC_SUMMARY_NKSTAT \
    (sizeof (i_mac_misc_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for per hardware lane tx statistics
 */
static mac_stat_info_t  i_mac_tx_hwlane_si[] = {
    { MAC_STAT_OBYTES,  "obytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OPACKETS,    "opackets", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_OERRORS, "oerrors",  KSTAT_DATA_UINT64,  0},
    { MAC_STAT_BLOCK,   "blockcnt", KSTAT_DATA_UINT64,  0},
    { MAC_STAT_UNBLOCK, "unblockcnt",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_TXSDROPS,    "txsdrops", KSTAT_DATA_UINT64,  0}
};
#define MAC_TX_HWLANE_NKSTAT \
    (sizeof (i_mac_tx_hwlane_si) / sizeof (mac_stat_info_t))

/*
 * Definitions for per fanout rx statistics
 */
static mac_stat_info_t  i_mac_rx_fanout_si[] = {
    { MAC_STAT_RBYTES,  "rbytes",   KSTAT_DATA_UINT64,  0},
    { MAC_STAT_IPACKETS,    "ipackets", KSTAT_DATA_UINT64,  0},
};
#define MAC_RX_FANOUT_NKSTAT \
    (sizeof (i_mac_rx_fanout_si) / sizeof (mac_stat_info_t))

/*
 * Private functions.
 */

typedef struct {
    uint_t  si_offset;
} stat_info_t;

#define RX_SRS_STAT_OFF(f)  (offsetof(mac_rx_stats_t, f))
static stat_info_t rx_srs_stats_list[] = {
    {RX_SRS_STAT_OFF(mrs_lclbytes)},
    {RX_SRS_STAT_OFF(mrs_lclcnt)},
    {RX_SRS_STAT_OFF(mrs_pollcnt)},
    {RX_SRS_STAT_OFF(mrs_pollbytes)},
    {RX_SRS_STAT_OFF(mrs_intrcnt)},
    {RX_SRS_STAT_OFF(mrs_intrbytes)},
    {RX_SRS_STAT_OFF(mrs_sdrops)},
    {RX_SRS_STAT_OFF(mrs_chaincntundr10)},
    {RX_SRS_STAT_OFF(mrs_chaincnt10to50)},
    {RX_SRS_STAT_OFF(mrs_chaincntover50)},
    {RX_SRS_STAT_OFF(mrs_ierrors)}
};
#define RX_SRS_STAT_SIZE        \
    (sizeof (rx_srs_stats_list) / sizeof (stat_info_t))

#define TX_SOFTRING_STAT_OFF(f) (offsetof(mac_tx_stats_t, f))
static stat_info_t tx_softring_stats_list[] = {
    {TX_SOFTRING_STAT_OFF(mts_obytes)},
    {TX_SOFTRING_STAT_OFF(mts_opackets)},
    {TX_SOFTRING_STAT_OFF(mts_oerrors)},
    {TX_SOFTRING_STAT_OFF(mts_blockcnt)},
    {TX_SOFTRING_STAT_OFF(mts_unblockcnt)},
    {TX_SOFTRING_STAT_OFF(mts_sdrops)},
};
#define TX_SOFTRING_STAT_SIZE       \
    (sizeof (tx_softring_stats_list) / sizeof (stat_info_t))

static void
i_mac_add_stats(void *sum, void *op1, void *op2,
    stat_info_t stats_list[], uint_t size)
{
    int     i;

    for (i = 0; i < size; i++) {
        uint64_t *op1_val = (uint64_t *)
            ((uchar_t *)op1 + stats_list[i].si_offset);
        uint64_t *op2_val = (uint64_t *)
            ((uchar_t *)op2 + stats_list[i].si_offset);
        uint64_t *sum_val = (uint64_t *)
            ((uchar_t *)sum + stats_list[i].si_offset);

        *sum_val =  *op1_val + *op2_val;
    }
}

static int
i_mac_driver_stat_update(kstat_t *ksp, int rw)
{
    mac_impl_t  *mip = ksp->ks_private;
    kstat_named_t   *knp = ksp->ks_data;
    uint_t      i;
    uint64_t    val;
    mac_stat_info_t *msi;
    uint_t      msi_index;

    if (rw != KSTAT_READ)
        return (EACCES);

    for (i = 0; i < mip->mi_kstat_count; i++, msi_index++) {
        if (i == MAC_MOD_KSTAT_OFFSET) {
            msi_index = 0;
            msi = i_mac_mod_si;
        } else if (i == MAC_KSTAT_OFFSET) {
            msi_index = 0;
            msi = i_mac_si;
        } else if (i == MAC_TYPE_KSTAT_OFFSET) {
            msi_index = 0;
            msi = mip->mi_type->mt_stats;
        }

        val = mac_stat_get((mac_handle_t)mip, msi[msi_index].msi_stat);
        switch (msi[msi_index].msi_type) {
        case KSTAT_DATA_UINT64:
            knp->value.ui64 = val;
            break;
        case KSTAT_DATA_UINT32:
            knp->value.ui32 = (uint32_t)val;
            break;
        default:
            ASSERT(B_FALSE);
            break;
        }

        knp++;
    }

    return (0);
}

static void
i_mac_kstat_init(kstat_named_t *knp, mac_stat_info_t *si, uint_t count)
{
    int i;
    for (i = 0; i < count; i++) {
        kstat_named_init(knp, si[i].msi_name, si[i].msi_type);
        knp++;
    }
}

static int
i_mac_stat_update(kstat_t *ksp, int rw, uint64_t (*fn)(void *, uint_t),
    mac_stat_info_t *msi, uint_t count)
{
    kstat_named_t   *knp = ksp->ks_data;
    uint_t      i;
    uint64_t    val;

    if (rw != KSTAT_READ)
        return (EACCES);

    for (i = 0; i < count; i++) {
        val = fn(ksp->ks_private, msi[i].msi_stat);

        switch (msi[i].msi_type) {
        case KSTAT_DATA_UINT64:
            knp->value.ui64 = val;
            break;
        case KSTAT_DATA_UINT32:
            knp->value.ui32 = (uint32_t)val;
            break;
        default:
            ASSERT(B_FALSE);
            break;
        }
        knp++;
    }
    return (0);
}

/*
 * Create kstat with given name - statname, update function - fn
 * and initialize it with given names - init_stat_info
 */
static kstat_t *
i_mac_stat_create(void *handle, const char *modname, const char *statname,
    int (*fn) (kstat_t *, int),
    mac_stat_info_t *init_stat_info, uint_t count)
{
    kstat_t     *ksp;
    kstat_named_t   *knp;

    ksp = kstat_create(modname, 0, statname, "net",
        KSTAT_TYPE_NAMED, count, 0);

    if (ksp == NULL)
        return (NULL);

    ksp->ks_update = fn;
    ksp->ks_private = handle;

    knp = (kstat_named_t *)ksp->ks_data;
    i_mac_kstat_init(knp, init_stat_info, count);
    kstat_install(ksp);

    return (ksp);
}

/*
 * Per rx ring statistics
 */
uint64_t
mac_rx_ring_stat_get(void *handle, uint_t stat)
{
    mac_ring_t      *ring = (mac_ring_t *)handle;
    uint64_t        val = 0;

    /*
     * XXX Every ring-capable driver must implement an entry point to
     * query per ring statistics. CR 6893122 tracks this work item.
     * Once this bug is fixed, the framework should fail registration
     * for a driver that does not implement this entry point and
     * assert ring->mr_stat != NULL here.
     */
    if (ring->mr_stat != NULL)
        ring->mr_stat(ring->mr_driver, stat, &val);

    return (val);
}

static int
i_mac_rx_ring_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, mac_rx_ring_stat_get,
        i_mac_rx_ring_si, MAC_RX_RING_NKSTAT));
}

static void
i_mac_rx_ring_stat_create(mac_ring_t *ring, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(ring, modname, statname,
        i_mac_rx_ring_stat_update, i_mac_rx_ring_si, MAC_RX_RING_NKSTAT);

    ring->mr_ksp = ksp;
}

/*
 * Per tx ring statistics
 */
uint64_t
mac_tx_ring_stat_get(void *handle, uint_t stat)
{
    mac_ring_t      *ring = (mac_ring_t *)handle;
    uint64_t        val = 0;

    /*
     * XXX Every ring-capable driver must implement an entry point to
     * query per ring statistics. CR 6893122 tracks this work item.
     * Once this bug is fixed, the framework should fail registration
     * for a driver that does not implement this entry point and
     * assert ring->mr_stat != NULL here.
     */
    if (ring->mr_stat != NULL)
        ring->mr_stat(ring->mr_driver, stat, &val);

    return (val);
}

static int
i_mac_tx_ring_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, mac_tx_ring_stat_get,
        i_mac_tx_ring_si, MAC_TX_RING_NKSTAT));
}

static void
i_mac_tx_ring_stat_create(mac_ring_t *ring, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(ring, modname, statname,
        i_mac_tx_ring_stat_update, i_mac_tx_ring_si, MAC_TX_RING_NKSTAT);

    ring->mr_ksp = ksp;
}

/*
 * Per software lane tx statistics
 */
static uint64_t
i_mac_tx_swlane_stat_get(void *handle, uint_t stat)
{
    mac_soft_ring_set_t *mac_srs = (mac_soft_ring_set_t *)handle;
    mac_tx_stats_t *mac_tx_stat = &mac_srs->srs_tx.st_stat;

    switch (stat) {
    case MAC_STAT_OBYTES:
        return (mac_tx_stat->mts_obytes);

    case MAC_STAT_OPACKETS:
        return (mac_tx_stat->mts_opackets);

    case MAC_STAT_OERRORS:
        return (mac_tx_stat->mts_oerrors);

    case MAC_STAT_BLOCK:
        return (mac_tx_stat->mts_blockcnt);

    case MAC_STAT_UNBLOCK:
        return (mac_tx_stat->mts_unblockcnt);

    case MAC_STAT_TXSDROPS:
        return (mac_tx_stat->mts_sdrops);

    default:
        return (0);
    }
}

static int
i_mac_tx_swlane_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_tx_swlane_stat_get,
        i_mac_tx_swlane_si, MAC_TX_SWLANE_NKSTAT));
}

static void
i_mac_tx_swlane_stat_create(mac_soft_ring_set_t *mac_srs, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(mac_srs, modname, statname,
        i_mac_tx_swlane_stat_update, i_mac_tx_swlane_si,
        MAC_TX_SWLANE_NKSTAT);

    mac_srs->srs_ksp = ksp;
}

/*
 * Per software lane rx statistics
 */
static uint64_t
i_mac_rx_swlane_stat_get(void *handle, uint_t stat)
{
    mac_soft_ring_set_t *mac_srs = (mac_soft_ring_set_t *)handle;
    mac_rx_stats_t      *mac_rx_stat = &mac_srs->srs_rx.sr_stat;

    switch (stat) {
    case MAC_STAT_IPACKETS:
        return (mac_rx_stat->mrs_intrcnt +
            mac_rx_stat->mrs_lclcnt);

    case MAC_STAT_RBYTES:
        return (mac_rx_stat->mrs_intrbytes +
            mac_rx_stat->mrs_lclbytes);

    case MAC_STAT_LCL:
        return (mac_rx_stat->mrs_lclcnt);

    case MAC_STAT_LCLBYTES:
        return (mac_rx_stat->mrs_lclbytes);

    case MAC_STAT_INTRS:
        return (mac_rx_stat->mrs_intrcnt);

    case MAC_STAT_INTRBYTES:
        return (mac_rx_stat->mrs_intrbytes);

    case MAC_STAT_RXSDROPS:
        return (mac_rx_stat->mrs_sdrops);

    default:
        return (0);
    }
}

static int
i_mac_rx_swlane_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_rx_swlane_stat_get,
        i_mac_rx_swlane_si, MAC_RX_SWLANE_NKSTAT));
}

static void
i_mac_rx_swlane_stat_create(mac_soft_ring_set_t *mac_srs, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(mac_srs, modname, statname,
        i_mac_rx_swlane_stat_update, i_mac_rx_swlane_si,
        MAC_RX_SWLANE_NKSTAT);

    mac_srs->srs_ksp = ksp;
}


/*
 * Per hardware lane rx statistics
 */
static uint64_t
i_mac_rx_hwlane_stat_get(void *handle, uint_t stat)
{
    mac_soft_ring_set_t *mac_srs = (mac_soft_ring_set_t *)handle;
    mac_rx_stats_t      *mac_rx_stat = &mac_srs->srs_rx.sr_stat;

    switch (stat) {
    case MAC_STAT_IPACKETS:
        return (mac_rx_stat->mrs_intrcnt +
            mac_rx_stat->mrs_pollcnt);

    case MAC_STAT_RBYTES:
        return (mac_rx_stat->mrs_intrbytes +
            mac_rx_stat->mrs_pollbytes);

    case MAC_STAT_INTRS:
        return (mac_rx_stat->mrs_intrcnt);

    case MAC_STAT_INTRBYTES:
        return (mac_rx_stat->mrs_intrbytes);

    case MAC_STAT_POLLS:
        return (mac_rx_stat->mrs_pollcnt);

    case MAC_STAT_POLLBYTES:
        return (mac_rx_stat->mrs_pollbytes);

    case MAC_STAT_RXSDROPS:
        return (mac_rx_stat->mrs_sdrops);

    case MAC_STAT_CHU10:
        return (mac_rx_stat->mrs_chaincntundr10);

    case MAC_STAT_CH10T50:
        return (mac_rx_stat->mrs_chaincnt10to50);

    case MAC_STAT_CHO50:
        return (mac_rx_stat->mrs_chaincntover50);

    default:
        return (0);
    }
}

static int
i_mac_rx_hwlane_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_rx_hwlane_stat_get,
        i_mac_rx_hwlane_si, MAC_RX_HWLANE_NKSTAT));
}

static void
i_mac_rx_hwlane_stat_create(mac_soft_ring_set_t *mac_srs, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(mac_srs, modname, statname,
        i_mac_rx_hwlane_stat_update, i_mac_rx_hwlane_si,
        MAC_RX_HWLANE_NKSTAT);

    mac_srs->srs_ksp = ksp;
}


/*
 * Misc statistics
 *
 * Counts for
 *  - Multicast/broadcast Rx/Tx counts
 *  - Tx errors
 */
static uint64_t
i_mac_misc_stat_get(void *handle, uint_t stat)
{
    flow_entry_t        *flent = handle;
    mac_client_impl_t   *mcip = flent->fe_mcip;
    mac_misc_stats_t    *mac_misc_stat = &mcip->mci_misc_stat;
    mac_rx_stats_t      *mac_rx_stat;
    mac_tx_stats_t      *mac_tx_stat;

    mac_rx_stat = &mac_misc_stat->mms_defunctrxlanestats;
    mac_tx_stat = &mac_misc_stat->mms_defuncttxlanestats;

    switch (stat) {
    case MAC_STAT_MULTIRCV:
        return (mac_misc_stat->mms_multircv);

    case MAC_STAT_BRDCSTRCV:
        return (mac_misc_stat->mms_brdcstrcv);

    case MAC_STAT_MULTIXMT:
        return (mac_misc_stat->mms_multixmt);

    case MAC_STAT_BRDCSTXMT:
        return (mac_misc_stat->mms_brdcstxmt);

    case MAC_STAT_MULTIRCVBYTES:
        return (mac_misc_stat->mms_multircvbytes);

    case MAC_STAT_BRDCSTRCVBYTES:
        return (mac_misc_stat->mms_brdcstrcvbytes);

    case MAC_STAT_MULTIXMTBYTES:
        return (mac_misc_stat->mms_multixmtbytes);

    case MAC_STAT_BRDCSTXMTBYTES:
        return (mac_misc_stat->mms_brdcstxmtbytes);

    case MAC_STAT_TX_ERRORS:
        return (mac_misc_stat->mms_txerrors);

    case MAC_STAT_MACSPOOFED:
        return (mac_misc_stat->mms_macspoofed);

    case MAC_STAT_IPSPOOFED:
        return (mac_misc_stat->mms_ipspoofed);

    case MAC_STAT_DHCPSPOOFED:
        return (mac_misc_stat->mms_dhcpspoofed);

    case MAC_STAT_RESTRICTED:
        return (mac_misc_stat->mms_restricted);

    case MAC_STAT_DHCPDROPPED:
        return (mac_misc_stat->mms_dhcpdropped);

    case MAC_STAT_IPACKETS:
        return (mac_rx_stat->mrs_intrcnt +
            mac_rx_stat->mrs_pollcnt);

    case MAC_STAT_RBYTES:
        return (mac_rx_stat->mrs_intrbytes +
            mac_rx_stat->mrs_pollbytes);

    case MAC_STAT_LCL:
        return (mac_rx_stat->mrs_lclcnt);

    case MAC_STAT_LCLBYTES:
        return (mac_rx_stat->mrs_lclbytes);

    case MAC_STAT_INTRS:
        return (mac_rx_stat->mrs_intrcnt);

    case MAC_STAT_INTRBYTES:
        return (mac_rx_stat->mrs_intrbytes);

    case MAC_STAT_POLLS:
        return (mac_rx_stat->mrs_pollcnt);

    case MAC_STAT_POLLBYTES:
        return (mac_rx_stat->mrs_pollbytes);

    case MAC_STAT_RXSDROPS:
        return (mac_rx_stat->mrs_sdrops);

    case MAC_STAT_CHU10:
        return (mac_rx_stat->mrs_chaincntundr10);

    case MAC_STAT_CH10T50:
        return (mac_rx_stat->mrs_chaincnt10to50);

    case MAC_STAT_CHO50:
        return (mac_rx_stat->mrs_chaincntover50);

    case MAC_STAT_OBYTES:
        return (mac_tx_stat->mts_obytes);

    case MAC_STAT_OPACKETS:
        return (mac_tx_stat->mts_opackets);

    case MAC_STAT_OERRORS:
        return (mac_tx_stat->mts_oerrors);

    case MAC_STAT_BLOCK:
        return (mac_tx_stat->mts_blockcnt);

    case MAC_STAT_UNBLOCK:
        return (mac_tx_stat->mts_unblockcnt);

    case MAC_STAT_TXSDROPS:
        return (mac_tx_stat->mts_sdrops);

    default:
        return (0);
    }
}

static int
i_mac_misc_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_misc_stat_get,
        i_mac_misc_si, MAC_SUMMARY_NKSTAT));
}

static void
i_mac_misc_stat_create(flow_entry_t *flent, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(flent, modname, statname,
        i_mac_misc_stat_update, i_mac_misc_si,
        MAC_SUMMARY_NKSTAT);

    flent->fe_misc_stat_ksp = ksp;
}

/*
 * Per hardware lane tx statistics
 */
static uint64_t
i_mac_tx_hwlane_stat_get(void *handle, uint_t stat)
{
    mac_soft_ring_t *ringp = (mac_soft_ring_t *)handle;
    mac_tx_stats_t  *mac_tx_stat = &ringp->s_st_stat;

    switch (stat) {
    case MAC_STAT_OBYTES:
        return (mac_tx_stat->mts_obytes);

    case MAC_STAT_OPACKETS:
        return (mac_tx_stat->mts_opackets);

    case MAC_STAT_OERRORS:
        return (mac_tx_stat->mts_oerrors);

    case MAC_STAT_BLOCK:
        return (mac_tx_stat->mts_blockcnt);

    case MAC_STAT_UNBLOCK:
        return (mac_tx_stat->mts_unblockcnt);

    case MAC_STAT_TXSDROPS:
        return (mac_tx_stat->mts_sdrops);

    default:
        return (0);
    }
}

static int
i_mac_tx_hwlane_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_tx_hwlane_stat_get,
        i_mac_tx_hwlane_si, MAC_TX_HWLANE_NKSTAT));
}

static void
i_mac_tx_hwlane_stat_create(mac_soft_ring_t *ringp, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(ringp, modname, statname,
        i_mac_tx_hwlane_stat_update, i_mac_tx_hwlane_si,
        MAC_TX_HWLANE_NKSTAT);

    ringp->s_ring_ksp = ksp;
}

/*
 * Per fanout rx statistics
 */
static uint64_t
i_mac_rx_fanout_stat_get(void *handle, uint_t stat)
{
    mac_soft_ring_t     *tcp_ringp = (mac_soft_ring_t *)handle;
    mac_soft_ring_t     *udp_ringp = NULL, *oth_ringp = NULL;
    mac_soft_ring_set_t     *mac_srs = tcp_ringp->s_ring_set;
    int         index;
    uint64_t        val;

    mutex_enter(&mac_srs->srs_lock);
    /* Extract corresponding udp and oth ring pointers */
    for (index = 0; mac_srs->srs_tcp_soft_rings[index] != NULL; index++) {
        if (mac_srs->srs_tcp_soft_rings[index] == tcp_ringp) {
            udp_ringp = mac_srs->srs_udp_soft_rings[index];
            oth_ringp = mac_srs->srs_oth_soft_rings[index];
            break;
        }
    }

    ASSERT((udp_ringp != NULL) && (oth_ringp != NULL));

    switch (stat) {
    case MAC_STAT_RBYTES:
        val = (tcp_ringp->s_ring_total_rbytes) +
            (udp_ringp->s_ring_total_rbytes) +
            (oth_ringp->s_ring_total_rbytes);
        break;

    case MAC_STAT_IPACKETS:
        val = (tcp_ringp->s_ring_total_inpkt) +
            (udp_ringp->s_ring_total_inpkt) +
            (oth_ringp->s_ring_total_inpkt);
        break;

    default:
        val = 0;
        break;
    }
    mutex_exit(&mac_srs->srs_lock);
    return (val);
}

static int
i_mac_rx_fanout_stat_update(kstat_t *ksp, int rw)
{
    return (i_mac_stat_update(ksp, rw, i_mac_rx_fanout_stat_get,
        i_mac_rx_fanout_si, MAC_RX_FANOUT_NKSTAT));
}

static void
i_mac_rx_fanout_stat_create(mac_soft_ring_t *ringp, const char *modname,
    const char *statname)
{
    kstat_t     *ksp;

    ksp = i_mac_stat_create(ringp, modname, statname,
        i_mac_rx_fanout_stat_update, i_mac_rx_fanout_si,
        MAC_RX_FANOUT_NKSTAT);

    ringp->s_ring_ksp = ksp;
}

/*
 * Exported functions.
 */

/*
 * Create the "mac" kstat.  The "mac" kstat is comprised of three kinds of
 * statistics: statistics maintained by the mac module itself, generic mac
 * statistics maintained by the driver, and MAC-type specific statistics
 * also maintained by the driver.
 */
void
mac_driver_stat_create(mac_impl_t *mip)
{
    kstat_t     *ksp;
    kstat_named_t   *knp;
    uint_t      count;
    major_t     major = getmajor(mip->mi_phy_dev);

    count = MAC_MOD_NKSTAT + MAC_NKSTAT + mip->mi_type->mt_statcount;
    ksp = kstat_create((const char *)ddi_major_to_name(major),
        getminor(mip->mi_phy_dev) - 1, MAC_KSTAT_NAME,
        MAC_KSTAT_CLASS, KSTAT_TYPE_NAMED, count, 0);
    if (ksp == NULL)
        return;

    ksp->ks_update = i_mac_driver_stat_update;
    ksp->ks_private = mip;
    mip->mi_ksp = ksp;
    mip->mi_kstat_count = count;

    knp = (kstat_named_t *)ksp->ks_data;
    i_mac_kstat_init(knp, i_mac_mod_si, MAC_MOD_NKSTAT);
    knp += MAC_MOD_NKSTAT;
    i_mac_kstat_init(knp, i_mac_si, MAC_NKSTAT);
    if (mip->mi_type->mt_statcount > 0) {
        knp += MAC_NKSTAT;
        i_mac_kstat_init(knp, mip->mi_type->mt_stats,
            mip->mi_type->mt_statcount);
    }

    kstat_install(ksp);
}

/*ARGSUSED*/
void
mac_driver_stat_delete(mac_impl_t *mip)
{
    if (mip->mi_ksp != NULL) {
        kstat_delete(mip->mi_ksp);
        mip->mi_ksp = NULL;
        mip->mi_kstat_count = 0;
    }
}

uint64_t
mac_driver_stat_default(mac_impl_t *mip, uint_t stat)
{
    uint_t  stat_index;

    if (IS_MAC_STAT(stat)) {
        stat_index = stat - MAC_STAT_MIN;
        ASSERT(stat_index < MAC_NKSTAT);
        return (i_mac_si[stat_index].msi_default);
    }
    ASSERT(IS_MACTYPE_STAT(stat));
    stat_index = stat - MACTYPE_STAT_MIN;
    ASSERT(stat_index < mip->mi_type->mt_statcount);
    return (mip->mi_type->mt_stats[stat_index].msi_default);
}

void
mac_ring_stat_create(mac_ring_t *ring)
{
    mac_impl_t  *mip = ring->mr_mip;
    char        statname[MAXNAMELEN];
    char        modname[MAXNAMELEN];

    if (mip->mi_state_flags & MIS_IS_AGGR) {
        (void) strlcpy(modname, mip->mi_clients_list->mci_name,
            MAXNAMELEN);
    } else
        (void) strlcpy(modname, mip->mi_name, MAXNAMELEN);

    switch (ring->mr_type) {
    case MAC_RING_TYPE_RX:
        (void) snprintf(statname, sizeof (statname), "mac_rx_ring%d",
            ring->mr_index);
        i_mac_rx_ring_stat_create(ring, modname, statname);
        break;

    case MAC_RING_TYPE_TX:
        (void) snprintf(statname, sizeof (statname), "mac_tx_ring%d",
            ring->mr_index);
        i_mac_tx_ring_stat_create(ring, modname, statname);
        break;

    default:
        ASSERT(B_FALSE);
        break;
    }
}

void
mac_srs_stat_create(mac_soft_ring_set_t *mac_srs)
{
    flow_entry_t    *flent = mac_srs->srs_flent;
    char        statname[MAXNAMELEN];
    boolean_t   is_tx_srs;

    /* No hardware/software lanes for user defined flows */
    if ((flent->fe_type & FLOW_USER) != 0)
        return;

    is_tx_srs = ((mac_srs->srs_type & SRST_TX) != 0);

    if (is_tx_srs) {
        mac_srs_tx_t    *srs_tx = &mac_srs->srs_tx;
        mac_ring_t  *ring = srs_tx->st_arg2;

        if (ring != NULL) {
            (void) snprintf(statname, sizeof (statname),
                "mac_tx_hwlane%d", ring->mr_index);
        } else {
            (void) snprintf(statname, sizeof (statname),
                "mac_tx_swlane0");
        }
        i_mac_tx_swlane_stat_create(mac_srs, flent->fe_flow_name,
            statname);
    } else {
        mac_ring_t  *ring = mac_srs->srs_ring;

        if (ring == NULL) {
            (void) snprintf(statname, sizeof (statname),
                "mac_rx_swlane0");
            i_mac_rx_swlane_stat_create(mac_srs,
                flent->fe_flow_name, statname);
        } else {
            (void) snprintf(statname, sizeof (statname),
                "mac_rx_hwlane%d", ring->mr_index);
            i_mac_rx_hwlane_stat_create(mac_srs,
                flent->fe_flow_name, statname);
        }
    }
}

void
mac_misc_stat_create(flow_entry_t *flent)
{
    char    statname[MAXNAMELEN];

    /* No misc stats for user defined or mcast/bcast flows */
    if (((flent->fe_type & FLOW_USER) != 0) ||
        ((flent->fe_type & FLOW_MCAST) != 0))
        return;

    (void) snprintf(statname, sizeof (statname), "mac_misc_stat");
    i_mac_misc_stat_create(flent, flent->fe_flow_name, statname);
}

void
mac_soft_ring_stat_create(mac_soft_ring_t *ringp)
{
    mac_soft_ring_set_t *mac_srs = ringp->s_ring_set;
    flow_entry_t        *flent = ringp->s_ring_mcip->mci_flent;
    mac_ring_t      *ring = (mac_ring_t *)ringp->s_ring_tx_arg2;
    boolean_t       is_tx_srs;
    char            statname[MAXNAMELEN];

    /* No hardware/software lanes for user defined flows */
    if ((flent->fe_type & FLOW_USER) != 0)
        return;

    is_tx_srs = ((mac_srs->srs_type & SRST_TX) != 0);
    if (is_tx_srs) {    /* tx side hardware lane */
        ASSERT(ring != NULL);
        (void) snprintf(statname, sizeof (statname), "mac_tx_hwlane%d",
            ring->mr_index);
        i_mac_tx_hwlane_stat_create(ringp, flent->fe_flow_name,
            statname);
    } else {        /* rx side fanout */
                /* Maintain single stat for (tcp, udp, oth) */
        if (ringp->s_ring_type & ST_RING_TCP) {
            int         index;
            mac_soft_ring_t     *softring;

            for (index = 0, softring = mac_srs->srs_soft_ring_head;
                softring != NULL;
                index++, softring = softring->s_ring_next) {
                if (softring == ringp)
                    break;
            }

            if (mac_srs->srs_ring == NULL) {
                (void) snprintf(statname, sizeof (statname),
                    "mac_rx_swlane0_fanout%d", index/3);
            } else {
                (void) snprintf(statname, sizeof (statname),
                    "mac_rx_hwlane%d_fanout%d",
                    mac_srs->srs_ring->mr_index, index/3);
            }
            i_mac_rx_fanout_stat_create(ringp, flent->fe_flow_name,
                statname);
        }
    }
}

void
mac_ring_stat_delete(mac_ring_t *ring)
{
    if (ring->mr_ksp != NULL) {
        kstat_delete(ring->mr_ksp);
        ring->mr_ksp = NULL;
    }
}

void
mac_srs_stat_delete(mac_soft_ring_set_t *mac_srs)
{
    boolean_t   is_tx_srs;

    is_tx_srs = ((mac_srs->srs_type & SRST_TX) != 0);
    if (!is_tx_srs) {
        /*
         * Rx ring has been taken away. Before destroying corresponding
         * SRS, save the stats recorded by that SRS.
         */
        mac_client_impl_t   *mcip = mac_srs->srs_mcip;
        mac_misc_stats_t    *mac_misc_stat = &mcip->mci_misc_stat;
        mac_rx_stats_t      *mac_rx_stat = &mac_srs->srs_rx.sr_stat;

        i_mac_add_stats(&mac_misc_stat->mms_defunctrxlanestats,
            mac_rx_stat, &mac_misc_stat->mms_defunctrxlanestats,
            rx_srs_stats_list, RX_SRS_STAT_SIZE);
    }

    if (mac_srs->srs_ksp != NULL) {
        kstat_delete(mac_srs->srs_ksp);
        mac_srs->srs_ksp = NULL;
    }
}

void
mac_misc_stat_delete(flow_entry_t *flent)
{
    if (flent->fe_misc_stat_ksp != NULL) {
        kstat_delete(flent->fe_misc_stat_ksp);
        flent->fe_misc_stat_ksp = NULL;
    }
}

void
mac_soft_ring_stat_delete(mac_soft_ring_t *ringp)
{
    mac_soft_ring_set_t *mac_srs = ringp->s_ring_set;
    boolean_t       is_tx_srs;

    is_tx_srs = ((mac_srs->srs_type & SRST_TX) != 0);
    if (is_tx_srs) {
        /*
         * Tx ring has been taken away. Before destroying corresponding
         * soft ring, save the stats recorded by that soft ring.
         */
        mac_client_impl_t   *mcip = mac_srs->srs_mcip;
        mac_misc_stats_t    *mac_misc_stat = &mcip->mci_misc_stat;
        mac_tx_stats_t      *mac_tx_stat = &ringp->s_st_stat;

        i_mac_add_stats(&mac_misc_stat->mms_defuncttxlanestats,
            mac_tx_stat, &mac_misc_stat->mms_defuncttxlanestats,
            tx_softring_stats_list, TX_SOFTRING_STAT_SIZE);
    }

    if (ringp->s_ring_ksp) {
        kstat_delete(ringp->s_ring_ksp);
        ringp->s_ring_ksp = NULL;
    }
}

void
mac_pseudo_ring_stat_rename(mac_impl_t *mip)
{
    mac_group_t *group;
    mac_ring_t  *ring;

    /* Recreate pseudo rx ring kstats */
    for (group = mip->mi_rx_groups; group != NULL;
        group = group->mrg_next) {
        for (ring = group->mrg_rings; ring != NULL;
            ring = ring->mr_next) {
            mac_ring_stat_delete(ring);
            mac_ring_stat_create(ring);
        }
    }

    /* Recreate pseudo tx ring kstats */
    for (group = mip->mi_tx_groups; group != NULL;
        group = group->mrg_next) {
        for (ring = group->mrg_rings; ring != NULL;
            ring = ring->mr_next) {
            mac_ring_stat_delete(ring);
            mac_ring_stat_create(ring);
        }
    }
}

void
mac_stat_rename(mac_client_impl_t *mcip)
{
    flow_entry_t        *flent = mcip->mci_flent;
    mac_soft_ring_set_t *mac_srs;
    mac_soft_ring_t     *ringp;
    int         i, j;

    ASSERT(flent != NULL);

    /* Recreate rx SRSes kstats */
    for (i = 0; i < flent->fe_rx_srs_cnt; i++) {
        mac_srs = (mac_soft_ring_set_t *)flent->fe_rx_srs[i];
        mac_srs_stat_delete(mac_srs);
        mac_srs_stat_create(mac_srs);

        /* Recreate rx fanout kstats */
        for (j = 0; j < mac_srs->srs_tcp_ring_count; j++) {
            ringp = mac_srs->srs_tcp_soft_rings[j];
            mac_soft_ring_stat_delete(ringp);
            mac_soft_ring_stat_create(ringp);
        }
    }

    /* Recreate tx SRS kstats */
    mac_srs = (mac_soft_ring_set_t *)flent->fe_tx_srs;
    mac_srs_stat_delete(mac_srs);
    mac_srs_stat_create(mac_srs);

    /* Recreate tx sofring kstats */
    for (ringp = mac_srs->srs_soft_ring_head; ringp;
        ringp = ringp->s_ring_next) {
        mac_soft_ring_stat_delete(ringp);
        mac_soft_ring_stat_create(ringp);
    }

    /* Recreate misc kstats */
    mac_misc_stat_delete(flent);
    mac_misc_stat_create(flent);
}

void
mac_tx_srs_stat_recreate(mac_soft_ring_set_t *tx_srs, boolean_t add_stats)
{
    mac_client_impl_t   *mcip = tx_srs->srs_mcip;
    mac_misc_stats_t    *mac_misc_stat = &mcip->mci_misc_stat;
    mac_tx_stats_t      *mac_tx_stat = &tx_srs->srs_tx.st_stat;

    if (add_stats) {
        /* Add the stats to cumulative stats */
        i_mac_add_stats(&mac_misc_stat->mms_defuncttxlanestats,
            mac_tx_stat, &mac_misc_stat->mms_defuncttxlanestats,
            tx_softring_stats_list, TX_SOFTRING_STAT_SIZE);
    }

    bzero(mac_tx_stat, sizeof (mac_tx_stats_t));
    mac_srs_stat_delete(tx_srs);
    mac_srs_stat_create(tx_srs);
}