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dwc: add receive checksum offload for IPv6

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This patch adds support for receive checksum offload for TCP/IPv6
and UDP/IPv6. Since receive checksum offload can't be configured
separately for IPv4 and IPv6, IFCAP_RXCSUM and IFCAP_RXCSUM_IPV6
can't be changed independently.

Reviewed by:		Timo Völker
MFC after:		3 days
Differential Revision:	https://reviews.freebsd.org/D54756
This commit is contained in:
Michael Tuexen committed 2026-01-17 21:06:28 +01:00
1 parent aca67c37a5
commit 5d8777f3a7
3 files changed
+6 -6
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sys/dev/dwc/dwc1000_core.c
+1 -1
View File
@@ -238,7 +238,7 @@ dwc1000_enable_csum_offload(struct dwc_softc *sc)
DWC_ASSERT_LOCKED(sc);
reg = READ4(sc, MAC_CONFIGURATION);
if ((if_getcapenable(sc->ifp) & IFCAP_RXCSUM) != 0)
if ((if_getcapenable(sc->ifp) & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) != 0)
reg |= CONF_IPC;
else
reg &= ~CONF_IPC;
sys/dev/dwc/dwc1000_dma.c
+2 -2
View File
@@ -390,8 +390,8 @@ dwc_rxfinish_one(struct dwc_softc *sc, struct dwc_hwdesc *desc,
m->m_len = len;
if_inc_counter(ifp, IFCOUNTER_IPACKETS, 1);
if ((if_getcapenable(ifp) & IFCAP_RXCSUM) != 0 &&
(rdesc0 & RDESC0_FT) != 0) {
if ((if_getcapenable(ifp) & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) != 0 &&
(rdesc0 & RDESC0_FT) != 0) {
m->m_pkthdr.csum_flags = CSUM_IP_CHECKED;
if ((rdesc0 & RDESC0_ICE) == 0)
m->m_pkthdr.csum_flags |= CSUM_IP_VALID;
sys/dev/dwc/if_dwc.c
+3 -3
View File
@@ -263,8 +263,8 @@ dwc_ioctl(if_t ifp, u_long cmd, caddr_t data)
/* No work to do except acknowledge the change took */
if_togglecapenable(ifp, IFCAP_VLAN_MTU);
}
if (mask & IFCAP_RXCSUM)
if_togglecapenable(ifp, IFCAP_RXCSUM);
if (mask & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6))
if_togglecapenable(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6);
if (mask & IFCAP_TXCSUM)
if_togglecapenable(ifp, IFCAP_TXCSUM);
if ((if_getcapenable(ifp) & IFCAP_TXCSUM) != 0)
@@ -614,7 +614,7 @@ dwc_attach(device_t dev)
if_setsendqlen(ifp, TX_MAP_COUNT - 1);
if_setsendqready(sc->ifp);
if_sethwassist(sc->ifp, CSUM_IP | CSUM_DELAY_DATA | CSUM_DELAY_DATA_IPV6);
if_setcapabilities(sc->ifp, IFCAP_VLAN_MTU | IFCAP_HWCSUM | IFCAP_TXCSUM_IPV6);
if_setcapabilities(sc->ifp, IFCAP_VLAN_MTU | IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6);
if_setcapenable(sc->ifp, if_getcapabilities(sc->ifp));
/* Attach the mii driver. */