---
rtemsbsd/sys/dev/atsam/if_atsam.c | 34 +++++++++++++++++++++++++++++++++-
1 file changed, 33 insertions(+), 1 deletion(-)
diff --git a/rtemsbsd/sys/dev/atsam/if_atsam.c
b/rtemsbsd/sys/dev/atsam/if_atsam.c
index 794937be..d47a17e7 100644
--- a/rtemsbsd/sys/dev/atsam/if_atsam.c
+++ b/rtemsbsd/sys/dev/atsam/if_atsam.c
@@ -554,6 +554,23 @@ static void if_atsam_rx_daemon(void *arg)
m->m_data = mtod(m, char*)+ETHER_ALIGN;
m->m_len = frame_len;
m->m_pkthdr.len = frame_len;
+ /* check checksum offload result */
+ switch
(buffer_desc->status.bm.typeIDMatchOrCksumResult) {
+ case
GMAC_RXDESC_ST_CKSUM_RESULT_IP_CHECKED:
+ m->m_pkthdr.csum_flags |=
+ CSUM_IP_CHECKED |
+ CSUM_IP_VALID;
+ m->m_pkthdr.csum_data = 0xffff;
+ case
GMAC_RXDESC_ST_CKSUM_RESULT_IP_AND_TCP_CHECKED:
+ case
GMAC_RXDESC_ST_CKSUM_RESULT_IP_AND_UDP_CHECKED:
+ m->m_pkthdr.csum_flags |=
+ CSUM_IP_CHECKED |
+ CSUM_IP_VALID |
+ CSUM_DATA_VALID |
+ CSUM_PSEUDO_HDR;
+ m->m_pkthdr.csum_data = 0xffff;
+ }
+
IF_ATSAM_UNLOCK(sc);
sc->ifp->if_input(ifp, m);
IF_ATSAM_LOCK(sc);
@@ -658,6 +675,7 @@ static bool if_atsam_send_packet(if_atsam_softc *sc, struct
mbuf *m)
uint32_t tmp_val = 0;
Gmac *pHw = sc->Gmac_inst.gGmacd.pHw;
bool success;
+ int csum_flags = m->m_pkthdr.csum_flags;
if_atsam_tx_bd_cleanup(sc);
/* Wait for interrupt in case no buffer descriptors are available */
@@ -706,6 +724,12 @@ static bool if_atsam_send_packet(if_atsam_softc *sc,
struct mbuf *m)
if (m == NULL) {
tmp_val |= GMAC_TX_SET_EOF;
tmp_val &= ~GMAC_TX_SET_USED;
+ if ((csum_flags & (CSUM_IP | CSUM_TCP | CSUM_UDP |
+ CSUM_TCP_IPV6 | CSUM_UDP_IPV6)) != 0) {
+ start_packet_tx_bd->status.bm.bNoCRC = 0;
+ } else {
+ start_packet_tx_bd->status.bm.bNoCRC = 1;
+ }
_ARM_Data_synchronization_barrier();
cur->status.val = tmp_val;
start_packet_tx_bd->status.val &= ~GMAC_TX_SET_USED;
@@ -979,9 +1003,13 @@ static void if_atsam_init(void *arg)
/* Configuration of DMAC */
dmac_cfg = (GMAC_DCFGR_DRBS(GMAC_RX_BUFFER_SIZE >> 6)) |
- GMAC_DCFGR_RXBMS(3) | GMAC_DCFGR_TXPBMS | GMAC_DCFGR_FBLDO_INCR16;
+ GMAC_DCFGR_RXBMS(3) | GMAC_DCFGR_TXPBMS | GMAC_DCFGR_FBLDO_INCR16 |
+ GMAC_DCFGR_TXCOEN;
GMAC_SetDMAConfig(sc->Gmac_inst.gGmacd.pHw, dmac_cfg, 0);
+ /* Enable hardware checksum offload for receive */
+ sc->Gmac_inst.gGmacd.pHw->GMAC_NCFGR |= GMAC_NCFGR_RXCOEN;
+
/* Shut down Transmit and Receive */
GMAC_ReceiveEnable(sc->Gmac_inst.gGmacd.pHw, 0);
GMAC_TransmitEnable(sc->Gmac_inst.gGmacd.pHw, 0);
@@ -1461,6 +1489,10 @@ static int if_atsam_driver_attach(device_t dev)
ifp->if_ioctl = if_atsam_ioctl;
ifp->if_start = if_atsam_enet_start;
ifp->if_flags = IFF_BROADCAST | IFF_SIMPLEX;
+ ifp->if_capabilities |= IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 |
+ IFCAP_VLAN_HWCSUM;
+ ifp->if_hwassist = CSUM_IP | CSUM_IP_UDP | CSUM_IP_TCP |
+ CSUM_IP6_UDP | CSUM_IP6_TCP;
IFQ_SET_MAXLEN(&ifp->if_snd, TXBUF_COUNT - 1);
ifp->if_snd.ifq_drv_maxlen = TXBUF_COUNT - 1;
IFQ_SET_READY(&ifp->if_snd);
--
2.13.6
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