diff options
Diffstat (limited to 'sys')
| -rw-r--r-- | sys/arm/allwinner/if_awg.c | 15 |
1 files changed, 12 insertions, 3 deletions
diff --git a/sys/arm/allwinner/if_awg.c b/sys/arm/allwinner/if_awg.c index d254b37e3cdd..3c61e93faeb5 100644 --- a/sys/arm/allwinner/if_awg.c +++ b/sys/arm/allwinner/if_awg.c @@ -169,6 +169,7 @@ struct awg_txring { bus_dma_tag_t buf_tag; struct awg_bufmap buf_map[TX_DESC_COUNT]; u_int cur, next, queued; + u_int segs; }; struct awg_rxring { @@ -399,8 +400,6 @@ awg_setup_txdesc(struct awg_softc *sc, int index, int flags, bus_addr_t paddr, } else { status = TX_DESC_CTL; size = flags | len; - if ((index & (awg_tx_interval - 1)) == 0) - size |= TX_INT_CTL; ++sc->tx.queued; } @@ -449,8 +448,18 @@ awg_setup_txbuf(struct awg_softc *sc, int index, struct mbuf **mp) for (cur = index, i = 0; i < nsegs; i++) { sc->tx.buf_map[cur].mbuf = (i == 0 ? m : NULL); - if (i == nsegs - 1) + sc->tx.segs++; + if (i == nsegs - 1) { flags |= TX_LAST_DESC; + /* + * Can only request TX completion + * interrupt on last descriptor. + */ + if (sc->tx.segs >= awg_tx_interval) { + sc->tx.segs = 0; + flags |= TX_INT_CTL; + } + } awg_setup_txdesc(sc, cur, flags, segs[i].ds_addr, segs[i].ds_len); flags &= ~TX_FIR_DESC; |