-
-int qbman_swp_send_multiple(struct qbman_swp *s,
- const struct qbman_eq_desc *d,
- const struct qbman_fd *fd,
- int frames_to_send)
-{
- uint32_t *p;
- const uint32_t *cl = qb_cl(d);
- uint32_t eqcr_ci;
- uint8_t diff;
- int sent = 0;
- int i;
- int initial_pi = s->eqcr.pi;
- uint64_t start_pointer;
-
- if (!s->eqcr.available) {
- eqcr_ci = s->eqcr.ci;
- s->eqcr.ci = qbman_cena_read_reg(&s->sys,
- QBMAN_CENA_SWP_EQCR_CI) & 0xF;
- diff = qm_cyc_diff(QBMAN_EQCR_SIZE,
- eqcr_ci, s->eqcr.ci);
- if (!diff)
- goto done;
- s->eqcr.available += diff;
- }
-
- /* we are trying to send frames_to_send,
- * if we have enough space in the ring
- */
- while (s->eqcr.available && frames_to_send--) {
- p = qbman_cena_write_start_wo_shadow_fast(&s->sys,
- QBMAN_CENA_SWP_EQCR((initial_pi) & 7));
- /* Write command (except of first byte) and FD */
- memcpy(&p[1], &cl[1], 7 * 4);
- memcpy(&p[8], &fd[sent], sizeof(struct qbman_fd));
-
- initial_pi++;
- initial_pi &= 0xF;
- s->eqcr.available--;
- sent++;
- }
-
-done:
- initial_pi = s->eqcr.pi;
- lwsync();
-
- /* in order for flushes to complete faster:
- * we use a following trick: we record all lines in 32 bit word
- */
-
- initial_pi = s->eqcr.pi;
- for (i = 0; i < sent; i++) {
- p = qbman_cena_write_start_wo_shadow_fast(&s->sys,
- QBMAN_CENA_SWP_EQCR((initial_pi) & 7));
-
- p[0] = cl[0] | s->eqcr.pi_vb;
- initial_pi++;
- initial_pi &= 0xF;
-
- if (!(initial_pi & 7))
- s->eqcr.pi_vb ^= QB_VALID_BIT;
- }
-
- initial_pi = s->eqcr.pi;
-
- /* We need to flush all the lines but without
- * load/store operations between them.
- * We assign start_pointer before we start loop so that
- * in loop we do not read it from memory
- */
- start_pointer = (uint64_t)s->sys.addr_cena;
- for (i = 0; i < sent; i++) {
- p = (uint32_t *)(start_pointer
- + QBMAN_CENA_SWP_EQCR(initial_pi & 7));
- dcbf((uint64_t)p);
- initial_pi++;
- initial_pi &= 0xF;
- }
-
- /* Update producer index for the next call */
- s->eqcr.pi = initial_pi;
-
- return sent;
-}
-
-int qbman_get_version(void)
-{
- return qman_version;
-}