#include <machine/rtems-bsd-kernel-space.h>
#include <rtems/bsd/local/opt_dpaa.h>
/* Copyright 2008 - 2015 Freescale Semiconductor, Inc.
*
* 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 Freescale Semiconductor nor the
* names of its contributors may be used to endorse or promote products
* derived from this software without specific prior written permission.
*
* ALTERNATIVELY, this software may be distributed under the terms of the
* GNU General Public License ("GPL") as published by the Free Software
* Foundation, either version 2 of that License or (at your option) any
* later version.
*
* THIS SOFTWARE IS PROVIDED BY Freescale Semiconductor ``AS IS'' AND ANY
* EXPRESS OR IMPLIED WARRANTIES, INCLUDING, BUT NOT LIMITED TO, THE IMPLIED
* WARRANTIES OF MERCHANTABILITY AND FITNESS FOR A PARTICULAR PURPOSE ARE
* DISCLAIMED. IN NO EVENT SHALL Freescale Semiconductor BE LIABLE FOR ANY
* DIRECT, INDIRECT, INCIDENTAL, SPECIAL, EXEMPLARY, OR CONSEQUENTIAL DAMAGES
* (INCLUDING, BUT NOT LIMITED TO, PROCUREMENT OF SUBSTITUTE GOODS OR SERVICES;
* LOSS OF USE, DATA, OR PROFITS; OR BUSINESS INTERRUPTION) HOWEVER CAUSED AND
* ON ANY THEORY OF LIABILITY, WHETHER IN CONTRACT, STRICT LIABILITY, OR TORT
* (INCLUDING NEGLIGENCE OR OTHERWISE) ARISING IN ANY WAY OUT OF THE USE OF THIS
* SOFTWARE, EVEN IF ADVISED OF THE POSSIBILITY OF SUCH DAMAGE.
*/
#include "qman_test.h"
/*************/
/* constants */
/*************/
#define CGR_ID 27
#define POOL_ID 2
#define FQ_FLAGS QMAN_FQ_FLAG_DYNAMIC_FQID
#define NUM_ENQUEUES 10
#define NUM_PARTIAL 4
#define PORTAL_SDQCR (QM_SDQCR_SOURCE_CHANNELS | \
QM_SDQCR_TYPE_PRIO_QOS | \
QM_SDQCR_TOKEN_SET(0x98) | \
QM_SDQCR_CHANNELS_DEDICATED | \
QM_SDQCR_CHANNELS_POOL(POOL_ID))
#define PORTAL_OPAQUE ((void *)0xf00dbeef)
#define VDQCR_FLAGS (QMAN_VOLATILE_FLAG_WAIT | QMAN_VOLATILE_FLAG_FINISH)
/*************************************/
/* Predeclarations (eg. for fq_base) */
/*************************************/
static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *,
struct qman_fq *,
const struct qm_dqrr_entry *);
static void cb_ern(struct qman_portal *, struct qman_fq *,
const struct qm_mr_entry *);
static void cb_fqs(struct qman_portal *, struct qman_fq *,
const struct qm_mr_entry *);
/***************/
/* global vars */
/***************/
static struct qm_fd fd, fd_dq;
static struct qman_fq fq_base = {
.cb.dqrr = cb_dqrr,
.cb.ern = cb_ern,
.cb.fqs = cb_fqs
};
static DECLARE_WAIT_QUEUE_HEAD(waitqueue);
static int retire_complete, sdqcr_complete;
/**********************/
/* internal functions */
/**********************/
/* Helpers for initialising and "incrementing" a frame descriptor */
static void fd_init(struct qm_fd *__fd)
{
qm_fd_addr_set64(__fd, 0xabdeadbeefLLU);
__fd->format = qm_fd_contig_big;
__fd->length29 = 0x0000ffff;
__fd->cmd = 0xfeedf00d;
}
static void fd_inc(struct qm_fd *__fd)
{
u64 t = qm_fd_addr_get64(__fd);
int z = t >> 40;
t <<= 1;
if (z)
t |= 1;
qm_fd_addr_set64(__fd, t);
__fd->length29--;
__fd->cmd++;
}
/* The only part of the 'fd' we can't memcmp() is the ppid */
static int fd_cmp(const struct qm_fd *a, const struct qm_fd *b)
{
int r = (qm_fd_addr_get64(a) == qm_fd_addr_get64(b)) ? 0 : -1;
if (!r)
r = a->format - b->format;
if (!r)
r = a->opaque - b->opaque;
if (!r)
r = a->cmd - b->cmd;
return r;
}
/********/
/* test */
/********/
static void do_enqueues(struct qman_fq *fq)
{
unsigned int loop;
for (loop = 0; loop < NUM_ENQUEUES; loop++) {
if (qman_enqueue(fq, &fd, QMAN_ENQUEUE_FLAG_WAIT |
(((loop + 1) == NUM_ENQUEUES) ?
QMAN_ENQUEUE_FLAG_WAIT_SYNC : 0)))
panic("qman_enqueue() failed\n");
fd_inc(&fd);
}
}
void qman_test_api(void)
{
u32 flags;
int res;
struct qman_fq *fq = &fq_base;
pr_info("%s(): Starting\n", __func__);
fd_init(&fd);
fd_init(&fd_dq);
/* Initialise (parked) FQ */
if (qman_create_fq(0, FQ_FLAGS, fq))
panic("qman_create_fq() failed\n");
if (qman_init_fq(fq, QMAN_INITFQ_FLAG_LOCAL, NULL))
panic("qman_init_fq() failed\n");
/* Do enqueues + VDQCR, twice. (Parked FQ) */
do_enqueues(fq);
pr_info("VDQCR (till-empty);\n");
if (qman_volatile_dequeue(fq, VDQCR_FLAGS,
QM_VDQCR_NUMFRAMES_TILLEMPTY))
panic("qman_volatile_dequeue() failed\n");
do_enqueues(fq);
pr_info("VDQCR (%d of %d);\n", NUM_PARTIAL, NUM_ENQUEUES);
if (qman_volatile_dequeue(fq, VDQCR_FLAGS,
QM_VDQCR_NUMFRAMES_SET(NUM_PARTIAL)))
panic("qman_volatile_dequeue() failed\n");
pr_info("VDQCR (%d of %d);\n", NUM_ENQUEUES - NUM_PARTIAL,
NUM_ENQUEUES);
if (qman_volatile_dequeue(fq, VDQCR_FLAGS,
QM_VDQCR_NUMFRAMES_SET(NUM_ENQUEUES - NUM_PARTIAL)))
panic("qman_volatile_dequeue() failed\n");
do_enqueues(fq);
pr_info("scheduled dequeue (till-empty)\n");
if (qman_schedule_fq(fq))
panic("qman_schedule_fq() failed\n");
wait_event(waitqueue, sdqcr_complete);
/* Retire and OOS the FQ */
res = qman_retire_fq(fq, &flags);
if (res < 0)
panic("qman_retire_fq() failed\n");
wait_event(waitqueue, retire_complete);
if (flags & QMAN_FQ_STATE_BLOCKOOS)
panic("leaking frames\n");
if (qman_oos_fq(fq))
panic("qman_oos_fq() failed\n");
qman_destroy_fq(fq, 0);
pr_info("%s(): Finished\n", __func__);
}
static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *p,
struct qman_fq *fq,
const struct qm_dqrr_entry *dq)
{
if (fd_cmp(&fd_dq, &dq->fd)) {
pr_err("BADNESS: dequeued frame doesn't match;\n");
BUG();
}
fd_inc(&fd_dq);
if (!(dq->stat & QM_DQRR_STAT_UNSCHEDULED) && !fd_cmp(&fd_dq, &fd)) {
sdqcr_complete = 1;
wake_up(&waitqueue);
}
return qman_cb_dqrr_consume;
}
static void cb_ern(struct qman_portal *p, struct qman_fq *fq,
const struct qm_mr_entry *msg)
{
panic("cb_ern() unimplemented");
}
static void cb_fqs(struct qman_portal *p, struct qman_fq *fq,
const struct qm_mr_entry *msg)
{
u8 verb = (msg->verb & QM_MR_VERB_TYPE_MASK);
if ((verb != QM_MR_VERB_FQRN) && (verb != QM_MR_VERB_FQRNI))
panic("unexpected FQS message");
#ifndef __rtems__
pr_info("Retirement message received\n");
#endif /* __rtems__ */
retire_complete = 1;
wake_up(&waitqueue);
}
