diff options
| author | Michael Tuexen <tuexen@FreeBSD.org> | 2026-01-23 07:59:57 +0000 |
|---|---|---|
| committer | Michael Tuexen <tuexen@FreeBSD.org> | 2026-01-23 07:59:57 +0000 |
| commit | f31336b3e3146fed9cc517fef8e877c17496f9e0 (patch) | |
| tree | 192a383411a14ff3fceb701d1bd6c6bf8ec300d7 | |
| parent | 8352e24d0bc59f9730980986600bde7d8cdce21d (diff) | |
dpnaa2: announce transmit checksum support
Let the network stack know that the NIC supports checksum offloading
for the IPv4 header checksum and the TCP and UDP transport checksum.
This avoids the computation in software and therefore provides the
expected performance gain.
PR: 292006
Reviewed by: dsl, Timo Völker
MFC after: 3 days
Differential Revision: https://reviews.freebsd.org/D54809
| -rw-r--r-- | sys/dev/dpaa2/dpaa2_ni.c | 10 |
1 files changed, 8 insertions, 2 deletions
diff --git a/sys/dev/dpaa2/dpaa2_ni.c b/sys/dev/dpaa2/dpaa2_ni.c index eda5bab78bde..5f796e6e472b 100644 --- a/sys/dev/dpaa2/dpaa2_ni.c +++ b/sys/dev/dpaa2/dpaa2_ni.c @@ -220,6 +220,9 @@ MALLOC_DEFINE(M_DPAA2_TXB, "dpaa2_txb", "DPAA2 DMA-mapped buffer (Tx)"); #define RXH_L4_B_2_3 (1 << 7) /* dst port in case of TCP/UDP/SCTP */ #define RXH_DISCARD (1 << 31) +/* Transmit checksum offload */ +#define DPAA2_CSUM_TX_OFFLOAD (CSUM_IP | CSUM_DELAY_DATA | CSUM_DELAY_DATA_IPV6) + /* Default Rx hash options, set during attaching. */ #define DPAA2_RXH_DEFAULT (RXH_IP_SRC | RXH_IP_DST | RXH_L4_B_0_1 | RXH_L4_B_2_3) @@ -559,6 +562,7 @@ dpaa2_ni_attach(device_t dev) if_settransmitfn(ifp, dpaa2_ni_transmit); if_setqflushfn(ifp, dpaa2_ni_qflush); + if_sethwassist(sc->ifp, DPAA2_CSUM_TX_OFFLOAD); if_setcapabilities(ifp, IFCAP_VLAN_MTU | IFCAP_HWCSUM | IFCAP_HWCSUM_IPV6 | IFCAP_JUMBO_MTU); if_setcapenable(ifp, if_getcapabilities(ifp)); @@ -2600,8 +2604,10 @@ dpaa2_ni_ioctl(if_t ifp, u_long c, caddr_t data) changed = if_getcapenable(ifp) ^ ifr->ifr_reqcap; if ((changed & (IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6)) != 0) if_togglecapenable(ifp, IFCAP_RXCSUM | IFCAP_RXCSUM_IPV6); - if ((changed & (IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6)) != 0) - if_togglecapenable(ifp, IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6); + if ((changed & (IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6)) != 0) { + if_togglecapenable(ifp, IFCAP_TXCSUM | IFCAP_TXCSUM_IPV6); + if_togglehwassist(ifp, DPAA2_CSUM_TX_OFFLOAD); + } rc = dpaa2_ni_setup_if_caps(sc); if (rc) { |