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usr / src / sys / contrib / octeon-sdk /

📁 ..
📄 cvmip.h(5.88 KB)
📄 cvmx-abi.h(3.67 KB)
📄 cvmx-access-native.h(26.79 KB)
📄 cvmx-access.h(7.82 KB)
📄 cvmx-address.h(10.26 KB)
📄 cvmx-agl-defs.h(213.66 KB)
📄 cvmx-app-hotplug.c(27.64 KB)
📄 cvmx-app-hotplug.h(5.77 KB)
📄 cvmx-app-init-linux.c(14.29 KB)
📄 cvmx-app-init.c(22.54 KB)
📄 cvmx-app-init.h(19.32 KB)
📄 cvmx-asm.h(39.3 KB)
📄 cvmx-asx0-defs.h(5.19 KB)
📄 cvmx-asxx-defs.h(50.57 KB)
📄 cvmx-atomic.h(21.71 KB)
📄 cvmx-bootloader.h(5.64 KB)
📄 cvmx-bootmem.c(40.91 KB)
📄 cvmx-bootmem.h(18.88 KB)
📄 cvmx-ciu-defs.h(702.5 KB)
📄 cvmx-ciu2-defs.h(487.31 KB)
📄 cvmx-clock.c(4.48 KB)
📄 cvmx-clock.h(4.43 KB)
📄 cvmx-cmd-queue.c(11.84 KB)
📄 cvmx-cmd-queue.h(22 KB)
📄 cvmx-cn3010-evb-hs5.c(6.05 KB)
📄 cvmx-cn3010-evb-hs5.h(2.3 KB)
📄 cvmx-compactflash.c(12.8 KB)
📄 cvmx-compactflash.h(3.05 KB)
📄 cvmx-core.c(5.3 KB)
📄 cvmx-core.h(9.46 KB)
📄 cvmx-coremask.c(4.12 KB)
📄 cvmx-coremask.h(8.11 KB)
📄 cvmx-crypto.c(2.6 KB)
📄 cvmx-crypto.h(2.54 KB)
📄 cvmx-csr-enums.h(8.45 KB)
📄 cvmx-csr-typedefs.h(3.92 KB)
📄 cvmx-csr.h(11.46 KB)
📄 cvmx-dbg-defs.h(6.28 KB)
📄 cvmx-debug-handler.S(7.44 KB)
📄 cvmx-debug-remote.c(3.24 KB)
📄 cvmx-debug-uart.c(7.88 KB)
📄 cvmx-debug.c(55.98 KB)
📄 cvmx-debug.h(22.2 KB)
📄 cvmx-dfa-defs.h(383.08 KB)
📄 cvmx-dfa.c(3.7 KB)
📄 cvmx-dfa.h(34.87 KB)
📄 cvmx-dfm-defs.h(205.93 KB)
📄 cvmx-dma-engine.c(20.25 KB)
📄 cvmx-dma-engine.h(24.06 KB)
📄 cvmx-dpi-defs.h(107.61 KB)
📄 cvmx-ebt3000.c(3.82 KB)
📄 cvmx-ebt3000.h(2.25 KB)
📄 cvmx-endor-defs.h(311.42 KB)
📄 cvmx-eoi-defs.h(26.27 KB)
📄 cvmx-fau.h(20.31 KB)
📄 cvmx-flash.c(22.46 KB)
📄 cvmx-flash.h(3.8 KB)
📄 cvmx-fpa-defs.h(157.78 KB)
📄 cvmx-fpa.c(6.63 KB)
📄 cvmx-fpa.h(10.39 KB)
📄 cvmx-gmx.h(3.07 KB)
📄 cvmx-gmxx-defs.h(505.27 KB)
📄 cvmx-gpio-defs.h(36.89 KB)
📄 cvmx-gpio.h(5.48 KB)
📄 cvmx-helper-board.c(58 KB)
📄 cvmx-helper-board.h(7.82 KB)
📄 cvmx-helper-cfg.c(18.68 KB)
📄 cvmx-helper-cfg.h(8.1 KB)
📄 cvmx-helper-check-defines.h(4.1 KB)
📄 cvmx-helper-errata.c(11.91 KB)
📄 cvmx-helper-errata.h(3.24 KB)
📄 cvmx-helper-fpa.c(8.81 KB)
📄 cvmx-helper-fpa.h(3.21 KB)
📄 cvmx-helper-ilk.c(12.74 KB)
📄 cvmx-helper-ilk.h(3.58 KB)
📄 cvmx-helper-jtag.c(7.05 KB)
📄 cvmx-helper-jtag.h(3.91 KB)
📄 cvmx-helper-loop.c(4.35 KB)
📄 cvmx-helper-loop.h(2.78 KB)
📄 cvmx-helper-npi.c(5.72 KB)
📄 cvmx-helper-npi.h(2.82 KB)
📄 cvmx-helper-rgmii.c(19.12 KB)
📄 cvmx-helper-rgmii.h(4.5 KB)
📄 cvmx-helper-sgmii.c(27.09 KB)
📄 cvmx-helper-sgmii.h(4.3 KB)
📄 cvmx-helper-spi.c(8.4 KB)
📄 cvmx-helper-spi.h(3.68 KB)
📄 cvmx-helper-srio.c(11.58 KB)
📄 cvmx-helper-srio.h(3.6 KB)
📄 cvmx-helper-util.c(25.77 KB)
📄 cvmx-helper-util.h(9.88 KB)
📄 cvmx-helper-xaui.c(16.54 KB)
📄 cvmx-helper-xaui.h(4.29 KB)
📄 cvmx-helper.c(69.71 KB)
📄 cvmx-helper.h(12.7 KB)
📄 cvmx-hfa.c(5.04 KB)
📄 cvmx-hfa.h(10.3 KB)
📄 cvmx-higig.h(23.21 KB)
📄 cvmx-ilk-defs.h(170.31 KB)
📄 cvmx-ilk.c(45.16 KB)
📄 cvmx-ilk.h(5.89 KB)
📄 cvmx-interrupt-handler.S(5.87 KB)
📄 cvmx-interrupt.c(47.42 KB)
📄 cvmx-interrupt.h(8.07 KB)
📄 cvmx-iob-defs.h(89.11 KB)
📄 cvmx-iob1-defs.h(6.8 KB)
📄 cvmx-ipd-defs.h(186.51 KB)
📄 cvmx-ipd.c(12.88 KB)
📄 cvmx-ipd.h(6.3 KB)
📄 cvmx-ixf18201.c(12.8 KB)
📄 cvmx-ixf18201.h(3.54 KB)
📄 cvmx-key-defs.h(11 KB)
📄 cvmx-key.h(3.29 KB)
📄 cvmx-l2c-defs.h(353.27 KB)
📄 cvmx-l2c.c(52.95 KB)
📄 cvmx-l2c.h(19.72 KB)
📄 cvmx-l2d-defs.h(60.71 KB)
📄 cvmx-l2t-defs.h(50.68 KB)
📄 cvmx-led-defs.h(22.68 KB)
📄 cvmx-llm.c(36.51 KB)
📄 cvmx-llm.h(11.72 KB)
📄 cvmx-lmcx-defs.h(532.21 KB)
📄 cvmx-log-arc.S(5.67 KB)
📄 cvmx-log.c(18.26 KB)
📄 cvmx-log.h(4.95 KB)
📁 cvmx-malloc
📄 cvmx-malloc.h(7.2 KB)
📄 cvmx-mdio.h(15.99 KB)
📄 cvmx-mgmt-port.c(36.2 KB)
📄 cvmx-mgmt-port.h(7.23 KB)
📄 cvmx-mio-defs.h(454.14 KB)
📄 cvmx-mixx-defs.h(94.59 KB)
📄 cvmx-mpi-defs.h(33.42 KB)
📄 cvmx-nand.c(76.64 KB)
📄 cvmx-nand.h(26.85 KB)
📄 cvmx-ndf-defs.h(25.53 KB)
📄 cvmx-npei-defs.h(378.19 KB)
📄 cvmx-npi-defs.h(252.36 KB)
📄 cvmx-npi.h(4.69 KB)
📄 cvmx-packet.h(2.94 KB)
📄 cvmx-pci-defs.h(250.53 KB)
📄 cvmx-pci.h(2.37 KB)
📄 cvmx-pcie.c(63 KB)
📄 cvmx-pcie.h(10.08 KB)
📄 cvmx-pcieepx-defs.h(304.49 KB)
📄 cvmx-pciercx-defs.h(284.89 KB)
📄 cvmx-pcm-defs.h(12.34 KB)
📄 cvmx-pcmx-defs.h(46.12 KB)
📄 cvmx-pcsx-defs.h(71.23 KB)
📄 cvmx-pcsxx-defs.h(45.79 KB)
📄 cvmx-pemx-defs.h(68.97 KB)
📄 cvmx-pescx-defs.h(49.92 KB)
📄 cvmx-pexp-defs.h(97.89 KB)
📄 cvmx-pip-defs.h(315.91 KB)
📄 cvmx-pip.h(33.65 KB)
📄 cvmx-pko-defs.h(181.41 KB)
📄 cvmx-pko.c(32 KB)
📄 cvmx-pko.h(31.29 KB)
📄 cvmx-platform.h(7.45 KB)
📄 cvmx-pow-defs.h(93.02 KB)
📄 cvmx-pow.c(32.26 KB)
📄 cvmx-pow.h(100.93 KB)
📄 cvmx-power-throttle.c(7.25 KB)
📄 cvmx-power-throttle.h(3.85 KB)
📄 cvmx-profiler.c(7.81 KB)
📄 cvmx-profiler.h(3.15 KB)
📄 cvmx-qlm-tables.c(35.37 KB)
📄 cvmx-qlm.c(23.41 KB)
📄 cvmx-qlm.h(4.76 KB)
📄 cvmx-rad-defs.h(43.58 KB)
📄 cvmx-raid.c(4.71 KB)
📄 cvmx-raid.h(13.02 KB)
📄 cvmx-resources.config(7.66 KB)
📄 cvmx-rng.h(5.02 KB)
📄 cvmx-rnm-defs.h(13.03 KB)
📄 cvmx-rtc.h(4.21 KB)
📄 cvmx-rwlock.h(5.25 KB)
📄 cvmx-scratch.h(4.76 KB)
📄 cvmx-shared-linux-n32.ld(11.8 KB)
📄 cvmx-shared-linux-o32.ld(10.67 KB)
📄 cvmx-shared-linux.ld(11.77 KB)
📄 cvmx-shmem.c(18.89 KB)
📄 cvmx-shmem.h(4.11 KB)
📄 cvmx-sim-magic.h(5.59 KB)
📄 cvmx-sli-defs.h(312.94 KB)
📄 cvmx-smi-defs.h(4.09 KB)
📄 cvmx-smix-defs.h(21.71 KB)
📄 cvmx-spi.c(24.99 KB)
📄 cvmx-spi.h(10.22 KB)
📄 cvmx-spi4000.c(19.23 KB)
📄 cvmx-spinlock.h(11.73 KB)
📄 cvmx-spx0-defs.h(3.94 KB)
📄 cvmx-spxx-defs.h(62.44 KB)
📄 cvmx-srio.c(63.05 KB)
📄 cvmx-srio.h(26.68 KB)
📄 cvmx-sriomaintx-defs.h(222.52 KB)
📄 cvmx-sriox-defs.h(211.56 KB)
📄 cvmx-srxx-defs.h(14.41 KB)
📄 cvmx-sso-defs.h(87.33 KB)
📄 cvmx-stxx-defs.h(34.02 KB)
📄 cvmx-swap.h(4.11 KB)
📄 cvmx-sysinfo.c(8.78 KB)
📄 cvmx-sysinfo.h(6.45 KB)
📄 cvmx-thunder.c(9.22 KB)
📄 cvmx-thunder.h(4.54 KB)
📄 cvmx-tim-defs.h(58.36 KB)
📄 cvmx-tim.c(10.92 KB)
📄 cvmx-tim.h(12.1 KB)
📄 cvmx-tlb.c(10.12 KB)
📄 cvmx-tlb.h(5.07 KB)
📄 cvmx-tra-defs.h(4.59 KB)
📄 cvmx-tra.c(31.16 KB)
📄 cvmx-tra.h(34.28 KB)
📄 cvmx-trax-defs.h(197.09 KB)
📄 cvmx-twsi.c(16.25 KB)
📄 cvmx-twsi.h(10.22 KB)
📄 cvmx-uahcx-defs.h(181.38 KB)
📄 cvmx-uart.c(5.69 KB)
📄 cvmx-uart.h(4.58 KB)
📄 cvmx-uctlx-defs.h(50.26 KB)
📄 cvmx-usb.c(138.53 KB)
📄 cvmx-usb.h(46.67 KB)
📄 cvmx-usbcx-defs.h(259.23 KB)
📄 cvmx-usbd.c(36.09 KB)
📄 cvmx-usbd.h(9.82 KB)
📄 cvmx-usbnx-defs.h(136.12 KB)
📄 cvmx-utils.h(7.54 KB)
📄 cvmx-version.h(2.23 KB)
📄 cvmx-warn.c(2.75 KB)
📄 cvmx-warn.h(2.43 KB)
📄 cvmx-wqe.h(38.61 KB)
📄 cvmx-zip-defs.h(43.18 KB)
📄 cvmx-zip.c(7.37 KB)
📄 cvmx-zip.h(8.5 KB)
📄 cvmx-zone.c(4.7 KB)
📄 cvmx.h(3.5 KB)
📄 octeon-boot-info.h(8.08 KB)
📄 octeon-feature.c(4.71 KB)
📄 octeon-feature.h(11.94 KB)
📄 octeon-model.c(15.79 KB)
📄 octeon-model.h(16.53 KB)
📄 octeon-pci-console.c(19.73 KB)
📄 octeon-pci-console.h(5.18 KB)

Editing: cvmx-cmd-queue.c

/***********************license start***************
 * Copyright (c) 2003-2010  Cavium Inc. (support@cavium.com). All rights
 * reserved.
 *
 *
 * Redistribution and use in source and binary forms, with or without
 * modification, are permitted provided that the following conditions are
 * met:
 *
 *   * Redistributions of source code must retain the above copyright
 *     notice, this list of conditions and the following disclaimer.
 *
 *   * Redistributions in binary form must reproduce the above
 *     copyright notice, this list of conditions and the following
 *     disclaimer in the documentation and/or other materials provided
 *     with the distribution.

*   * Neither the name of Cavium Inc. nor the names of
 *     its contributors may be used to endorse or promote products
 *     derived from this software without specific prior written
 *     permission.

* This Software, including technical data, may be subject to U.S. export  control
 * laws, including the U.S. Export Administration Act and its  associated
 * regulations, and may be subject to export or import  regulations in other
 * countries.

* TO THE MAXIMUM EXTENT PERMITTED BY LAW, THE SOFTWARE IS PROVIDED "AS IS"
 * AND WITH ALL FAULTS AND CAVIUM INC. MAKES NO PROMISES, REPRESENTATIONS OR
 * WARRANTIES, EITHER EXPRESS, IMPLIED, STATUTORY, OR OTHERWISE, WITH RESPECT TO
 * THE SOFTWARE, INCLUDING ITS CONDITION, ITS CONFORMITY TO ANY REPRESENTATION OR
 * DESCRIPTION, OR THE EXISTENCE OF ANY LATENT OR PATENT DEFECTS, AND CAVIUM
 * SPECIFICALLY DISCLAIMS ALL IMPLIED (IF ANY) WARRANTIES OF TITLE,
 * MERCHANTABILITY, NONINFRINGEMENT, FITNESS FOR A PARTICULAR PURPOSE, LACK OF
 * VIRUSES, ACCURACY OR COMPLETENESS, QUIET ENJOYMENT, QUIET POSSESSION OR
 * CORRESPONDENCE TO DESCRIPTION. THE ENTIRE  RISK ARISING OUT OF USE OR
 * PERFORMANCE OF THE SOFTWARE LIES WITH YOU.
 ***********************license end**************************************/

/**
 * @file
 *
 * Support functions for managing command queues used for
 * various hardware blocks.
 *
 * <hr>$Revision: 70030 $<hr>
 */
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#include <linux/module.h>
#include <asm/octeon/cvmx.h>
#include <asm/octeon/cvmx-bootmem.h>
#include <asm/octeon/cvmx-npei-defs.h>
#include <asm/octeon/cvmx-pexp-defs.h>
#include <asm/octeon/cvmx-dpi-defs.h>
#include <asm/octeon/cvmx-pko-defs.h>
#include <asm/octeon/cvmx-config.h>
#include <asm/octeon/cvmx-fpa.h>
#include <asm/octeon/cvmx-cmd-queue.h>
#else
#include "cvmx.h"
#include "cvmx-bootmem.h"
#if !defined(__FreeBSD__) || !defined(_KERNEL)
#include "cvmx-config.h"
#endif
#include "cvmx-fpa.h"
#include "cvmx-cmd-queue.h"
#endif

/**
 * This application uses this pointer to access the global queue
 * state. It points to a bootmem named block.
 */
CVMX_SHARED __cvmx_cmd_queue_all_state_t *__cvmx_cmd_queue_state_ptr;
#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
EXPORT_SYMBOL(__cvmx_cmd_queue_state_ptr);
#endif

/**
 * @INTERNAL
 * Initialize the Global queue state pointer.
 *
 * @return CVMX_CMD_QUEUE_SUCCESS or a failure code
 */
static cvmx_cmd_queue_result_t __cvmx_cmd_queue_init_state_ptr(void)
{
    char *alloc_name = "cvmx_cmd_queues";
#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
    extern uint64_t octeon_reserve32_memory;
#endif

if (cvmx_likely(__cvmx_cmd_queue_state_ptr))
        return CVMX_CMD_QUEUE_SUCCESS;

#ifdef CVMX_BUILD_FOR_LINUX_KERNEL
#if defined(CONFIG_CAVIUM_RESERVE32) && CONFIG_CAVIUM_RESERVE32
    if (octeon_reserve32_memory)
        __cvmx_cmd_queue_state_ptr = cvmx_bootmem_alloc_named_range(sizeof(*__cvmx_cmd_queue_state_ptr),
                                                              octeon_reserve32_memory,
                                                              octeon_reserve32_memory + (CONFIG_CAVIUM_RESERVE32<<20) - 1,
                                                              128, alloc_name);
    else
#endif
        __cvmx_cmd_queue_state_ptr = cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr), 128, alloc_name);
#else
    __cvmx_cmd_queue_state_ptr = cvmx_bootmem_alloc_named(sizeof(*__cvmx_cmd_queue_state_ptr), 128, alloc_name);
#endif
    if (__cvmx_cmd_queue_state_ptr)
        memset(__cvmx_cmd_queue_state_ptr, 0, sizeof(*__cvmx_cmd_queue_state_ptr));
    else
    {
        const cvmx_bootmem_named_block_desc_t *block_desc = cvmx_bootmem_find_named_block(alloc_name);
        if (block_desc)
            __cvmx_cmd_queue_state_ptr = cvmx_phys_to_ptr(block_desc->base_addr);
        else
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: Unable to get named block %s.\n", alloc_name);
            return CVMX_CMD_QUEUE_NO_MEMORY;
        }
    }
    return CVMX_CMD_QUEUE_SUCCESS;
}

/**
 * Initialize a command queue for use. The initial FPA buffer is
 * allocated and the hardware unit is configured to point to the
 * new command queue.
 *
 * @param queue_id  Hardware command queue to initialize.
 * @param max_depth Maximum outstanding commands that can be queued.
 * @param fpa_pool  FPA pool the command queues should come from.
 * @param pool_size Size of each buffer in the FPA pool (bytes)
 *
 * @return CVMX_CMD_QUEUE_SUCCESS or a failure code
 */
cvmx_cmd_queue_result_t cvmx_cmd_queue_initialize(cvmx_cmd_queue_id_t queue_id, int max_depth, int fpa_pool, int pool_size)
{
    __cvmx_cmd_queue_state_t *qstate;
    cvmx_cmd_queue_result_t result = __cvmx_cmd_queue_init_state_ptr();
    if (result != CVMX_CMD_QUEUE_SUCCESS)
        return result;

qstate = __cvmx_cmd_queue_get_state(queue_id);
    if (qstate == NULL)
        return CVMX_CMD_QUEUE_INVALID_PARAM;

/* We artificially limit max_depth to 1<<20 words. It is an arbitrary limit */
    if (CVMX_CMD_QUEUE_ENABLE_MAX_DEPTH)
    {
        if ((max_depth < 0) || (max_depth > 1<<20))
            return CVMX_CMD_QUEUE_INVALID_PARAM;
    }
    else if (max_depth != 0)
        return CVMX_CMD_QUEUE_INVALID_PARAM;

if ((fpa_pool < 0) || (fpa_pool > 7))
        return CVMX_CMD_QUEUE_INVALID_PARAM;
    if ((pool_size < 128) || (pool_size > 65536))
        return CVMX_CMD_QUEUE_INVALID_PARAM;

/* See if someone else has already initialized the queue */
    if (qstate->base_ptr_div128)
    {
        if (max_depth != (int)qstate->max_depth)
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: Queue already initialized with different max_depth (%d).\n", (int)qstate->max_depth);
            return CVMX_CMD_QUEUE_INVALID_PARAM;
        }
        if (fpa_pool != qstate->fpa_pool)
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: Queue already initialized with different FPA pool (%u).\n", qstate->fpa_pool);
            return CVMX_CMD_QUEUE_INVALID_PARAM;
        }
        if ((pool_size>>3)-1 != qstate->pool_size_m1)
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: Queue already initialized with different FPA pool size (%u).\n", (qstate->pool_size_m1+1)<<3);
            return CVMX_CMD_QUEUE_INVALID_PARAM;
        }
        CVMX_SYNCWS;
        return CVMX_CMD_QUEUE_ALREADY_SETUP;
    }
    else
    {
        cvmx_fpa_ctl_status_t status;
        void *buffer;

status.u64 = cvmx_read_csr(CVMX_FPA_CTL_STATUS);
        if (!status.s.enb)
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: FPA is not enabled.\n");
            return CVMX_CMD_QUEUE_NO_MEMORY;
        }
        buffer = cvmx_fpa_alloc(fpa_pool);
        if (buffer == NULL)
        {
            cvmx_dprintf("ERROR: cvmx_cmd_queue_initialize: Unable to allocate initial buffer.\n");
            return CVMX_CMD_QUEUE_NO_MEMORY;
        }

memset(qstate, 0, sizeof(*qstate));
        qstate->max_depth = max_depth;
        qstate->fpa_pool = fpa_pool;
        qstate->pool_size_m1 = (pool_size>>3)-1;
        qstate->base_ptr_div128 = cvmx_ptr_to_phys(buffer) / 128;
        /* We zeroed the now serving field so we need to also zero the ticket */
        __cvmx_cmd_queue_state_ptr->ticket[__cvmx_cmd_queue_get_index(queue_id)] = 0;
        CVMX_SYNCWS;
        return CVMX_CMD_QUEUE_SUCCESS;
    }
}

/**
 * Shutdown a queue a free it's command buffers to the FPA. The
 * hardware connected to the queue must be stopped before this
 * function is called.
 *
 * @param queue_id Queue to shutdown
 *
 * @return CVMX_CMD_QUEUE_SUCCESS or a failure code
 */
cvmx_cmd_queue_result_t cvmx_cmd_queue_shutdown(cvmx_cmd_queue_id_t queue_id)
{
    __cvmx_cmd_queue_state_t *qptr = __cvmx_cmd_queue_get_state(queue_id);
    if (qptr == NULL)
    {
        cvmx_dprintf("ERROR: cvmx_cmd_queue_shutdown: Unable to get queue information.\n");
        return CVMX_CMD_QUEUE_INVALID_PARAM;
    }

if (cvmx_cmd_queue_length(queue_id) > 0)
    {
        cvmx_dprintf("ERROR: cvmx_cmd_queue_shutdown: Queue still has data in it.\n");
        return CVMX_CMD_QUEUE_FULL;
    }

__cvmx_cmd_queue_lock(queue_id, qptr);
    if (qptr->base_ptr_div128)
    {
        cvmx_fpa_free(cvmx_phys_to_ptr((uint64_t)qptr->base_ptr_div128<<7), qptr->fpa_pool, 0);
        qptr->base_ptr_div128 = 0;
    }
    __cvmx_cmd_queue_unlock(qptr);

return CVMX_CMD_QUEUE_SUCCESS;
}

/**
 * Return the number of command words pending in the queue. This
 * function may be relatively slow for some hardware units.
 *
 * @param queue_id Hardware command queue to query
 *
 * @return Number of outstanding commands
 */
int cvmx_cmd_queue_length(cvmx_cmd_queue_id_t queue_id)
{
    if (CVMX_ENABLE_PARAMETER_CHECKING)
    {
        if (__cvmx_cmd_queue_get_state(queue_id) == NULL)
            return CVMX_CMD_QUEUE_INVALID_PARAM;
    }

/* The cast is here so gcc with check that all values in the
        cvmx_cmd_queue_id_t enumeration are here */
    switch ((cvmx_cmd_queue_id_t)(queue_id & 0xff0000))
    {
        case CVMX_CMD_QUEUE_PKO_BASE:
            /* FIXME: Need atomic lock on CVMX_PKO_REG_READ_IDX. Right now we
                are normally called with the queue lock, so that is a SLIGHT
                amount of protection */
            cvmx_write_csr(CVMX_PKO_REG_READ_IDX, queue_id & 0xffff);
            if (OCTEON_IS_MODEL(OCTEON_CN3XXX))
            {
                cvmx_pko_mem_debug9_t debug9;
                debug9.u64 = cvmx_read_csr(CVMX_PKO_MEM_DEBUG9);
                return debug9.cn38xx.doorbell;
            }
            else
            {
                cvmx_pko_mem_debug8_t debug8;
                debug8.u64 = cvmx_read_csr(CVMX_PKO_MEM_DEBUG8);
                if (octeon_has_feature(OCTEON_FEATURE_PKND))
                    return debug8.cn68xx.doorbell;
                else
                    return debug8.cn58xx.doorbell;
            }
        case CVMX_CMD_QUEUE_ZIP:
        case CVMX_CMD_QUEUE_DFA:
        case CVMX_CMD_QUEUE_RAID:
            // FIXME: Implement other lengths
            return 0;
        case CVMX_CMD_QUEUE_DMA_BASE:
            if (octeon_has_feature(OCTEON_FEATURE_NPEI))
            {
                cvmx_npei_dmax_counts_t dmax_counts;
                dmax_counts.u64 = cvmx_read_csr(CVMX_PEXP_NPEI_DMAX_COUNTS(queue_id & 0x7));
                return dmax_counts.s.dbell;
            }
            else
            {
                cvmx_dpi_dmax_counts_t dmax_counts;
                dmax_counts.u64 = cvmx_read_csr(CVMX_DPI_DMAX_COUNTS(queue_id & 0x7));
                return dmax_counts.s.dbell;
            }
        case CVMX_CMD_QUEUE_END:
            return CVMX_CMD_QUEUE_INVALID_PARAM;
    }
    return CVMX_CMD_QUEUE_INVALID_PARAM;
}

/**
 * Return the command buffer to be written to. The purpose of this
 * function is to allow CVMX routine access to the low level buffer
 * for initial hardware setup. User applications should not call this
 * function directly.
 *
 * @param queue_id Command queue to query
 *
 * @return Command buffer or NULL on failure
 */
void *cvmx_cmd_queue_buffer(cvmx_cmd_queue_id_t queue_id)
{
    __cvmx_cmd_queue_state_t *qptr = __cvmx_cmd_queue_get_state(queue_id);
    if (qptr && qptr->base_ptr_div128)
        return cvmx_phys_to_ptr((uint64_t)qptr->base_ptr_div128<<7);
    else
        return NULL;
}

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