1 /* Copyright 2008 - 2016 Freescale Semiconductor, Inc.
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15 * GNU General Public License ("GPL") as published by the Free Software
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31 #include "qman_test.h"
35 #define FQ_FLAGS QMAN_FQ_FLAG_DYNAMIC_FQID
36 #define NUM_ENQUEUES 10
38 #define PORTAL_SDQCR (QM_SDQCR_SOURCE_CHANNELS | \
39 QM_SDQCR_TYPE_PRIO_QOS | \
40 QM_SDQCR_TOKEN_SET(0x98) | \
41 QM_SDQCR_CHANNELS_DEDICATED | \
42 QM_SDQCR_CHANNELS_POOL(POOL_ID))
43 #define PORTAL_OPAQUE ((void *)0xf00dbeef)
44 #define VDQCR_FLAGS (QMAN_VOLATILE_FLAG_WAIT | QMAN_VOLATILE_FLAG_FINISH)
46 static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *,
48 const struct qm_dqrr_entry *,
50 static void cb_ern(struct qman_portal *, struct qman_fq *,
51 const union qm_mr_entry *);
52 static void cb_fqs(struct qman_portal *, struct qman_fq *,
53 const union qm_mr_entry *);
55 static struct qm_fd fd, fd_dq;
56 static struct qman_fq fq_base = {
61 static DECLARE_WAIT_QUEUE_HEAD(waitqueue);
62 static int retire_complete, sdqcr_complete;
64 /* Helpers for initialising and "incrementing" a frame descriptor */
65 static void fd_init(struct qm_fd *fd)
67 qm_fd_addr_set64(fd, 0xabdeadbeefLLU);
68 qm_fd_set_contig_big(fd, 0x0000ffff);
69 fd->cmd = cpu_to_be32(0xfeedf00d);
72 static void fd_inc(struct qm_fd *fd)
74 u64 t = qm_fd_addr_get64(fd);
76 unsigned int len, off;
77 enum qm_fd_format fmt;
82 qm_fd_addr_set64(fd, t);
84 fmt = qm_fd_get_format(fd);
85 off = qm_fd_get_offset(fd);
86 len = qm_fd_get_length(fd);
88 qm_fd_set_param(fd, fmt, off, len);
90 be32_add_cpu(&fd->cmd, 1);
93 /* The only part of the 'fd' we can't memcmp() is the ppid */
94 static bool fd_neq(const struct qm_fd *a, const struct qm_fd *b)
96 bool neq = qm_fd_addr_get64(a) != qm_fd_addr_get64(b);
98 neq |= qm_fd_get_format(a) != qm_fd_get_format(b);
99 neq |= a->cfg != b->cfg;
100 neq |= a->cmd != b->cmd;
106 static int do_enqueues(struct qman_fq *fq)
111 for (loop = 0; loop < NUM_ENQUEUES; loop++) {
112 if (qman_enqueue(fq, &fd)) {
113 pr_crit("qman_enqueue() failed\n");
122 int qman_test_api(void)
124 unsigned int flags, frmcnt;
126 struct qman_fq *fq = &fq_base;
128 pr_info("%s(): Starting\n", __func__);
132 /* Initialise (parked) FQ */
133 err = qman_create_fq(0, FQ_FLAGS, fq);
135 pr_crit("qman_create_fq() failed\n");
138 err = qman_init_fq(fq, QMAN_INITFQ_FLAG_LOCAL, NULL);
140 pr_crit("qman_init_fq() failed\n");
143 /* Do enqueues + VDQCR, twice. (Parked FQ) */
144 err = do_enqueues(fq);
147 pr_info("VDQCR (till-empty);\n");
148 frmcnt = QM_VDQCR_NUMFRAMES_TILLEMPTY;
149 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
151 pr_crit("qman_volatile_dequeue() failed\n");
154 err = do_enqueues(fq);
157 pr_info("VDQCR (%d of %d);\n", NUM_PARTIAL, NUM_ENQUEUES);
158 frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_PARTIAL);
159 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
161 pr_crit("qman_volatile_dequeue() failed\n");
164 pr_info("VDQCR (%d of %d);\n", NUM_ENQUEUES - NUM_PARTIAL,
166 frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_ENQUEUES - NUM_PARTIAL);
167 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
169 pr_err("qman_volatile_dequeue() failed\n");
173 err = do_enqueues(fq);
176 pr_info("scheduled dequeue (till-empty)\n");
177 err = qman_schedule_fq(fq);
179 pr_crit("qman_schedule_fq() failed\n");
182 wait_event(waitqueue, sdqcr_complete);
184 /* Retire and OOS the FQ */
185 err = qman_retire_fq(fq, &flags);
187 pr_crit("qman_retire_fq() failed\n");
190 wait_event(waitqueue, retire_complete);
191 if (flags & QMAN_FQ_STATE_BLOCKOOS) {
193 pr_crit("leaking frames\n");
196 err = qman_oos_fq(fq);
198 pr_crit("qman_oos_fq() failed\n");
202 pr_info("%s(): Finished\n", __func__);
210 static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *p,
212 const struct qm_dqrr_entry *dq,
215 if (WARN_ON(fd_neq(&fd_dq, &dq->fd))) {
216 pr_err("BADNESS: dequeued frame doesn't match;\n");
217 return qman_cb_dqrr_consume;
220 if (!(dq->stat & QM_DQRR_STAT_UNSCHEDULED) && !fd_neq(&fd_dq, &fd)) {
224 return qman_cb_dqrr_consume;
227 static void cb_ern(struct qman_portal *p, struct qman_fq *fq,
228 const union qm_mr_entry *msg)
230 pr_crit("cb_ern() unimplemented");
234 static void cb_fqs(struct qman_portal *p, struct qman_fq *fq,
235 const union qm_mr_entry *msg)
237 u8 verb = (msg->verb & QM_MR_VERB_TYPE_MASK);
239 if ((verb != QM_MR_VERB_FQRN) && (verb != QM_MR_VERB_FQRNI)) {
240 pr_crit("unexpected FQS message");
244 pr_info("Retirement message received\n");