| /* Copyright 2008 - 2016 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" |
| |
| #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) |
| |
| 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 union qm_mr_entry *); |
| static void cb_fqs(struct qman_portal *, struct qman_fq *, |
| const union qm_mr_entry *); |
| |
| 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; |
| |
| /* Helpers for initialising and "incrementing" a frame descriptor */ |
| static void fd_init(struct qm_fd *fd) |
| { |
| qm_fd_addr_set64(fd, 0xabdeadbeefLLU); |
| qm_fd_set_contig_big(fd, 0x0000ffff); |
| fd->cmd = cpu_to_be32(0xfeedf00d); |
| } |
| |
| static void fd_inc(struct qm_fd *fd) |
| { |
| u64 t = qm_fd_addr_get64(fd); |
| int z = t >> 40; |
| unsigned int len, off; |
| enum qm_fd_format fmt; |
| |
| t <<= 1; |
| if (z) |
| t |= 1; |
| qm_fd_addr_set64(fd, t); |
| |
| fmt = qm_fd_get_format(fd); |
| off = qm_fd_get_offset(fd); |
| len = qm_fd_get_length(fd); |
| len--; |
| qm_fd_set_param(fd, fmt, off, len); |
| |
| be32_add_cpu(&fd->cmd, 1); |
| } |
| |
| /* The only part of the 'fd' we can't memcmp() is the ppid */ |
| static bool fd_neq(const struct qm_fd *a, const struct qm_fd *b) |
| { |
| bool neq = qm_fd_addr_get64(a) != qm_fd_addr_get64(b); |
| |
| neq |= qm_fd_get_format(a) != qm_fd_get_format(b); |
| neq |= a->cfg != b->cfg; |
| neq |= a->cmd != b->cmd; |
| |
| return neq; |
| } |
| |
| /* test */ |
| static int do_enqueues(struct qman_fq *fq) |
| { |
| unsigned int loop; |
| int err = 0; |
| |
| for (loop = 0; loop < NUM_ENQUEUES; loop++) { |
| if (qman_enqueue(fq, &fd)) { |
| pr_crit("qman_enqueue() failed\n"); |
| err = -EIO; |
| } |
| fd_inc(&fd); |
| } |
| |
| return err; |
| } |
| |
| int qman_test_api(void) |
| { |
| unsigned int flags, frmcnt; |
| int err; |
| struct qman_fq *fq = &fq_base; |
| |
| pr_info("%s(): Starting\n", __func__); |
| fd_init(&fd); |
| fd_init(&fd_dq); |
| |
| /* Initialise (parked) FQ */ |
| err = qman_create_fq(0, FQ_FLAGS, fq); |
| if (err) { |
| pr_crit("qman_create_fq() failed\n"); |
| goto failed; |
| } |
| err = qman_init_fq(fq, QMAN_INITFQ_FLAG_LOCAL, NULL); |
| if (err) { |
| pr_crit("qman_init_fq() failed\n"); |
| goto failed; |
| } |
| /* Do enqueues + VDQCR, twice. (Parked FQ) */ |
| err = do_enqueues(fq); |
| if (err) |
| goto failed; |
| pr_info("VDQCR (till-empty);\n"); |
| frmcnt = QM_VDQCR_NUMFRAMES_TILLEMPTY; |
| err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt); |
| if (err) { |
| pr_crit("qman_volatile_dequeue() failed\n"); |
| goto failed; |
| } |
| err = do_enqueues(fq); |
| if (err) |
| goto failed; |
| pr_info("VDQCR (%d of %d);\n", NUM_PARTIAL, NUM_ENQUEUES); |
| frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_PARTIAL); |
| err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt); |
| if (err) { |
| pr_crit("qman_volatile_dequeue() failed\n"); |
| goto failed; |
| } |
| pr_info("VDQCR (%d of %d);\n", NUM_ENQUEUES - NUM_PARTIAL, |
| NUM_ENQUEUES); |
| frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_ENQUEUES - NUM_PARTIAL); |
| err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt); |
| if (err) { |
| pr_err("qman_volatile_dequeue() failed\n"); |
| goto failed; |
| } |
| |
| err = do_enqueues(fq); |
| if (err) |
| goto failed; |
| pr_info("scheduled dequeue (till-empty)\n"); |
| err = qman_schedule_fq(fq); |
| if (err) { |
| pr_crit("qman_schedule_fq() failed\n"); |
| goto failed; |
| } |
| wait_event(waitqueue, sdqcr_complete); |
| |
| /* Retire and OOS the FQ */ |
| err = qman_retire_fq(fq, &flags); |
| if (err < 0) { |
| pr_crit("qman_retire_fq() failed\n"); |
| goto failed; |
| } |
| wait_event(waitqueue, retire_complete); |
| if (flags & QMAN_FQ_STATE_BLOCKOOS) { |
| err = -EIO; |
| pr_crit("leaking frames\n"); |
| goto failed; |
| } |
| err = qman_oos_fq(fq); |
| if (err) { |
| pr_crit("qman_oos_fq() failed\n"); |
| goto failed; |
| } |
| qman_destroy_fq(fq); |
| pr_info("%s(): Finished\n", __func__); |
| return 0; |
| |
| failed: |
| WARN_ON(1); |
| return err; |
| } |
| |
| static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *p, |
| struct qman_fq *fq, |
| const struct qm_dqrr_entry *dq) |
| { |
| if (WARN_ON(fd_neq(&fd_dq, &dq->fd))) { |
| pr_err("BADNESS: dequeued frame doesn't match;\n"); |
| return qman_cb_dqrr_consume; |
| } |
| fd_inc(&fd_dq); |
| if (!(dq->stat & QM_DQRR_STAT_UNSCHEDULED) && !fd_neq(&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 union qm_mr_entry *msg) |
| { |
| pr_crit("cb_ern() unimplemented"); |
| WARN_ON(1); |
| } |
| |
| static void cb_fqs(struct qman_portal *p, struct qman_fq *fq, |
| const union qm_mr_entry *msg) |
| { |
| u8 verb = (msg->verb & QM_MR_VERB_TYPE_MASK); |
| |
| if ((verb != QM_MR_VERB_FQRN) && (verb != QM_MR_VERB_FQRNI)) { |
| pr_crit("unexpected FQS message"); |
| WARN_ON(1); |
| return; |
| } |
| pr_info("Retirement message received\n"); |
| retire_complete = 1; |
| wake_up(&waitqueue); |
| } |