modules/i40e/i40e.c

/*
 * This file and its contents are supplied under the terms of the
 * Common Development and Distribution License ("CDDL"), version 1.0.
 * You may only use this file in accordance with the terms of version
 * 1.0 of the CDDL.
 *
 * A full copy of the text of the CDDL should have accompanied this
 * source.  A copy of the CDDL is also available via the Internet at
 * http://www.illumos.org/license/CDDL.
 */

/*
 * Copyright 2016 Joyent, Inc.
 */

#include <sys/mdb_modapi.h>
#include "i40e_sw.h"

#define RSRC_MAX    0x13
static const char *i40e_switch_rsrc_names[] = {
    "VEBs",
    "VSIs",
    "Perfect Match MAC Addresses",
    "S-Tags",
    "Reserved",
    "Multicast Hash Entries",
    "Reserved",
    "VLANs",
    "VSI Lists",
    "Reserved",
    "VLAN Stat pools",
    "Mirror rules",
    "Queue sets",
    "Inner VLAN Forwarding",
    "Reserved",
    "Inner MACs",
    "IPs",
    "GRE/VN1 Keys",
    "VN2 Keys",
    "Tunnelling Ports"
};

/*
 * i40e mdb dcmds
 */
/* ARGSUSED */
static int
i40e_switch_rsrcs_dcmd(uintptr_t addr, uint_t flags, int argc,
    const mdb_arg_t *argv)
{
    i40e_t i40e;
    int i;

    if (!(flags & DCMD_ADDRSPEC)) {
        mdb_warn("::i40e_switch_rsrcs does not operate globally\n");
        return (DCMD_USAGE);
    }

    if (mdb_vread(&i40e, sizeof (i40e_t), addr) != sizeof (i40e_t)) {
        mdb_warn("failed to read i40e_t at %p", addr);
        return (DCMD_ERR);
    }

    mdb_printf("%-28s %-12s %-8s %-8s %s\n", "TYPE", "GUARANTEE",
        "TOTAL", "USED", "UNALLOCED");

    for (i = 0; i < i40e.i40e_switch_rsrc_actual; i++) {
        i40e_switch_rsrc_t rsrc;
        uintptr_t raddr = (uintptr_t)i40e.i40e_switch_rsrcs +
            i * sizeof (i40e_switch_rsrc_t);
        const char *name;

        if (mdb_vread(&rsrc, sizeof (i40e_switch_rsrc_t), raddr) !=
            sizeof (i40e_switch_rsrc_t)) {
            mdb_warn("failed to read i40e_switch_rsrc_t %d at %p",
                i, raddr);
            return (DCMD_ERR);
        }

        if (rsrc.resource_type <= RSRC_MAX) {
            name = i40e_switch_rsrc_names[rsrc.resource_type];
        } else {
            char *buf;
            size_t s = mdb_snprintf(NULL, 0, "Unknown type (%d)",
                rsrc.resource_type);
            buf = mdb_alloc(s + 1, UM_GC | UM_SLEEP);
            (void) mdb_snprintf(buf, s + 1, "Unknown type (%d)",
                rsrc.resource_type);
            name = buf;
        }

        mdb_printf("%-28s %-12d %-8d %-8d %d\n", name,
            LE_16(rsrc.guaranteed), LE_16(rsrc.total), LE_16(rsrc.used),
            LE_16(rsrc.total_unalloced));
    }

    return (DCMD_OK);
}

static const mdb_dcmd_t i40e_dcmds[] = {
    { "i40e_switch_rsrcs", NULL, "print switch resources",
        i40e_switch_rsrcs_dcmd, NULL },
    { NULL }
};

static const mdb_modinfo_t i40e_modinfo = {
    MDB_API_VERSION, i40e_dcmds, NULL
};

const mdb_modinfo_t *
_mdb_init(void)
{
    return (&i40e_modinfo);
}