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 *);
49 static void cb_ern(struct qman_portal *, struct qman_fq *,
50 const union qm_mr_entry *);
51 static void cb_fqs(struct qman_portal *, struct qman_fq *,
52 const union qm_mr_entry *);
54 static struct qm_fd fd, fd_dq;
55 static struct qman_fq fq_base = {
60 static DECLARE_WAIT_QUEUE_HEAD(waitqueue);
61 static int retire_complete, sdqcr_complete;
63 /* Helpers for initialising and "incrementing" a frame descriptor */
64 static void fd_init(struct qm_fd *fd)
66 qm_fd_addr_set64(fd, 0xabdeadbeefLLU);
67 qm_fd_set_contig_big(fd, 0x0000ffff);
68 fd->cmd = cpu_to_be32(0xfeedf00d);
71 static void fd_inc(struct qm_fd *fd)
73 u64 t = qm_fd_addr_get64(fd);
75 unsigned int len, off;
76 enum qm_fd_format fmt;
81 qm_fd_addr_set64(fd, t);
83 fmt = qm_fd_get_format(fd);
84 off = qm_fd_get_offset(fd);
85 len = qm_fd_get_length(fd);
87 qm_fd_set_param(fd, fmt, off, len);
89 be32_add_cpu(&fd->cmd, 1);
92 /* The only part of the 'fd' we can't memcmp() is the ppid */
93 static bool fd_neq(const struct qm_fd *a, const struct qm_fd *b)
95 bool neq = qm_fd_addr_get64(a) != qm_fd_addr_get64(b);
97 neq |= qm_fd_get_format(a) != qm_fd_get_format(b);
98 neq |= a->cfg != b->cfg;
99 neq |= a->cmd != b->cmd;
105 static int do_enqueues(struct qman_fq *fq)
110 for (loop = 0; loop < NUM_ENQUEUES; loop++) {
111 if (qman_enqueue(fq, &fd)) {
112 pr_crit("qman_enqueue() failed\n");
121 int qman_test_api(void)
123 unsigned int flags, frmcnt;
125 struct qman_fq *fq = &fq_base;
127 pr_info("%s(): Starting\n", __func__);
131 /* Initialise (parked) FQ */
132 err = qman_create_fq(0, FQ_FLAGS, fq);
134 pr_crit("qman_create_fq() failed\n");
137 err = qman_init_fq(fq, QMAN_INITFQ_FLAG_LOCAL, NULL);
139 pr_crit("qman_init_fq() failed\n");
142 /* Do enqueues + VDQCR, twice. (Parked FQ) */
143 err = do_enqueues(fq);
146 pr_info("VDQCR (till-empty);\n");
147 frmcnt = QM_VDQCR_NUMFRAMES_TILLEMPTY;
148 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
150 pr_crit("qman_volatile_dequeue() failed\n");
153 err = do_enqueues(fq);
156 pr_info("VDQCR (%d of %d);\n", NUM_PARTIAL, NUM_ENQUEUES);
157 frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_PARTIAL);
158 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
160 pr_crit("qman_volatile_dequeue() failed\n");
163 pr_info("VDQCR (%d of %d);\n", NUM_ENQUEUES - NUM_PARTIAL,
165 frmcnt = QM_VDQCR_NUMFRAMES_SET(NUM_ENQUEUES - NUM_PARTIAL);
166 err = qman_volatile_dequeue(fq, VDQCR_FLAGS, frmcnt);
168 pr_err("qman_volatile_dequeue() failed\n");
172 err = do_enqueues(fq);
175 pr_info("scheduled dequeue (till-empty)\n");
176 err = qman_schedule_fq(fq);
178 pr_crit("qman_schedule_fq() failed\n");
181 wait_event(waitqueue, sdqcr_complete);
183 /* Retire and OOS the FQ */
184 err = qman_retire_fq(fq, &flags);
186 pr_crit("qman_retire_fq() failed\n");
189 wait_event(waitqueue, retire_complete);
190 if (flags & QMAN_FQ_STATE_BLOCKOOS) {
192 pr_crit("leaking frames\n");
195 err = qman_oos_fq(fq);
197 pr_crit("qman_oos_fq() failed\n");
201 pr_info("%s(): Finished\n", __func__);
209 static enum qman_cb_dqrr_result cb_dqrr(struct qman_portal *p,
211 const struct qm_dqrr_entry *dq)
213 if (WARN_ON(fd_neq(&fd_dq, &dq->fd))) {
214 pr_err("BADNESS: dequeued frame doesn't match;\n");
215 return qman_cb_dqrr_consume;
218 if (!(dq->stat & QM_DQRR_STAT_UNSCHEDULED) && !fd_neq(&fd_dq, &fd)) {
222 return qman_cb_dqrr_consume;
225 static void cb_ern(struct qman_portal *p, struct qman_fq *fq,
226 const union qm_mr_entry *msg)
228 pr_crit("cb_ern() unimplemented");
232 static void cb_fqs(struct qman_portal *p, struct qman_fq *fq,
233 const union qm_mr_entry *msg)
235 u8 verb = (msg->verb & QM_MR_VERB_TYPE_MASK);
237 if ((verb != QM_MR_VERB_FQRN) && (verb != QM_MR_VERB_FQRNI)) {
238 pr_crit("unexpected FQS message");
242 pr_info("Retirement message received\n");