sys/net/iflib.c

400 get_inuse(int size, qidx_t cidx, qidx_t pidx, uint8_t gen)
404 	if (pidx > cidx)
405 		used = pidx - cidx;
406 	else if (pidx < cidx)
407 		used = size - cidx + pidx;
408 	else if (gen == 0 && pidx == cidx)
410 	else if (gen == 1 && pidx == cidx)
2036 	int err, frag_idx, i, idx, n, pidx;
2045 	pidx = fl->ifl_pidx;
2046 	idx = pidx;
2055 	if (pidx < fl->ifl_cidx)
2056 		MPASS(pidx + n <= fl->ifl_cidx);
2057 	if (pidx == fl->ifl_cidx && (credits < fl->ifl_size))
2059 	if (pidx > fl->ifl_cidx)
2060 		MPASS(n <= fl->ifl_size - pidx + fl->ifl_cidx);
2129 			iru.iru_pidx = pidx;
2134 			pidx = idx;
2141 			iru.iru_pidx = pidx;
2168 	 * We leave an unused descriptor to avoid pidx to catch up with cidx.
2399 	    "Watchdog timeout (TX: %d desc avail: %d pidx: %d) -- resetting\n",
2602 		/* also resets the free lists pidx/cidx */
3112 		 * pending flush (BRCM). 'pidx' is used in cases where the card's doorbeel uses the
3133 	printf("pi len:  %d qsidx: %d nsegs: %d ndescs: %d flags: %x pidx: %d\n",
3327 	int ntxd, pidx;
3332 	pidx = txq->ift_pidx & (ntxd - 1);
3334 	m = ifsd_m[pidx];
3335 	ifsd_m[pidx] = NULL;
3336 	bus_dmamap_unload(txq->ift_buf_tag, txq->ift_sds.ifsd_map[pidx]);
3339 		    txq->ift_sds.ifsd_tso_map[pidx]);
3422 	int err, nsegs, ndesc, max_segs, pidx, cidx, next, ntxd;
3436 	pidx = txq->ift_pidx;
3449 	map = txq->ift_sds.ifsd_map[pidx];
3455 		map = txq->ift_sds.ifsd_tso_map[pidx];
3461 		map = txq->ift_sds.ifsd_map[pidx];
3475 	pi.ipi_pidx = pidx;
3534 	ifsd_m[pidx] = m_head;
3565 	MPASS(pidx >= 0 && pidx < txq->ift_size);
3584 		MPASS(pi.ipi_new_pidx != pidx);
3748 iflib_txq_drain(struct ifmp_ring *r, uint32_t cidx, uint32_t pidx)
3765 	avail = IDXDIFF(pidx, cidx, r->size);
3862 iflib_txq_drain_free(struct ifmp_ring *r, uint32_t cidx, uint32_t pidx)
3875 	avail = IDXDIFF(pidx, cidx, r->size);
6859 			SYSCTL_ADD_U16(ctx_list, fl_list, OID_AUTO, "pidx",