sys/net/iflib.c

1827 	int idx, frag_idx = fl->ifl_fragidx;
1868 		bit_ffc_at(fl->ifl_rx_bitmap, frag_idx, fl->ifl_size,  &frag_idx);
1869 		if ((frag_idx < 0) || (frag_idx >= fl->ifl_size))
1870                 	bit_ffc(fl->ifl_rx_bitmap, fl->ifl_size, &frag_idx);
1871 		if ((cl = sd_cl[frag_idx]) == NULL) {
1872                        if ((cl = sd_cl[frag_idx] = m_cljget(NULL, M_NOWAIT, fl->ifl_buf_size)) == NULL)
1898 			MPASS(sd_map[frag_idx] != NULL);
1899 			err = bus_dmamap_load(fl->ifl_desc_tag, sd_map[frag_idx],
1901 			bus_dmamap_sync(fl->ifl_desc_tag, sd_map[frag_idx],
1916                 bit_set(fl->ifl_rx_bitmap, frag_idx);
1917 		sd_flags[frag_idx] |= RX_SW_DESC_INUSE;
1919 		MPASS(sd_m[frag_idx] == NULL);
1920 		sd_cl[frag_idx] = cl;
1921 		sd_m[frag_idx] = m;
1922 		fl->ifl_rxd_idxs[i] = frag_idx;
1961 	fl->ifl_fragidx = frag_idx;