diff options
| -rw-r--r-- | sys/dev/cxgbe/adapter.h | 2 | ||||
| -rw-r--r-- | sys/dev/cxgbe/t4_main.c | 4 | ||||
| -rw-r--r-- | sys/dev/cxgbe/t4_sge.c | 4 |
3 files changed, 8 insertions, 2 deletions
diff --git a/sys/dev/cxgbe/adapter.h b/sys/dev/cxgbe/adapter.h index b7a9cce..29e139b 100644 --- a/sys/dev/cxgbe/adapter.h +++ b/sys/dev/cxgbe/adapter.h @@ -643,6 +643,8 @@ struct adapter { const char *last_op; const void *last_op_thr; #endif + + int sc_do_rxcopy; }; #define ADAPTER_LOCK(sc) mtx_lock(&(sc)->sc_lock) diff --git a/sys/dev/cxgbe/t4_main.c b/sys/dev/cxgbe/t4_main.c index f7563fa..3211c5d 100644 --- a/sys/dev/cxgbe/t4_main.c +++ b/sys/dev/cxgbe/t4_main.c @@ -4207,6 +4207,10 @@ t4_sysctls(struct adapter *sc) oid = device_get_sysctl_tree(sc->dev); c0 = children = SYSCTL_CHILDREN(oid); + sc->sc_do_rxcopy = 1; + SYSCTL_ADD_INT(ctx, children, OID_AUTO, "do_rx_copy", CTLFLAG_RW, + &sc->sc_do_rxcopy, 1, "Do RX copy of small frames"); + SYSCTL_ADD_INT(ctx, children, OID_AUTO, "nports", CTLFLAG_RD, NULL, sc->params.nports, "# of ports"); diff --git a/sys/dev/cxgbe/t4_sge.c b/sys/dev/cxgbe/t4_sge.c index f4662b3..a9bdb0e 100644 --- a/sys/dev/cxgbe/t4_sge.c +++ b/sys/dev/cxgbe/t4_sge.c @@ -1450,7 +1450,7 @@ get_fl_payload1(struct adapter *sc, struct sge_fl *fl, uint32_t len_newbuf, bus_dmamap_sync(fl->tag[sd->tag_idx], sd->map, BUS_DMASYNC_POSTREAD); - if (len < RX_COPY_THRESHOLD) { + if (sc->sc_do_rxcopy && (len < RX_COPY_THRESHOLD)) { #ifdef T4_PKT_TIMESTAMP /* Leave room for a timestamp */ m0->m_data += 8; @@ -1601,7 +1601,7 @@ get_fl_payload2(struct adapter *sc, struct sge_fl *fl, uint32_t len_newbuf, bus_dmamap_sync(fl->tag[sd->tag_idx], sd->map, BUS_DMASYNC_POSTREAD); - if (len < RX_COPY_THRESHOLD) { + if (sc->sc_do_rxcopy && (len < RX_COPY_THRESHOLD)) { #ifdef T4_PKT_TIMESTAMP /* Leave room for a timestamp */ m0->m_data += 8; |
