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e1000: Fix/enable IPv6 transmit checksum offload

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Fixes and enables txcsum6 offload for lem(4) and em(4).

MFC after:	2 weeks
This commit is contained in:
Kevin Bowling 2023-07-22 15:58:34 -07:00
parent 918c25677d
commit 4f9a44a215
2 changed files with 7 additions and 4 deletions
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4
sys/dev/e1000/em_txrx.c
View file

@ -285,13 +285,13 @@ em_transmit_checksum_setup(struct e1000_softc *sc, if_pkt_info_t pi,
cmd |= E1000_TXD_CMD_IP;
}
if (csum_flags & (CSUM_TCP|CSUM_UDP)) {
if (csum_flags & (CSUM_TCP | CSUM_UDP | CSUM_IP6_TCP | CSUM_IP6_UDP)) {
uint8_t tucso;
*txd_upper |= E1000_TXD_POPTS_TXSM << 8;
*txd_lower = E1000_TXD_CMD_DEXT | E1000_TXD_DTYP_D;
if (csum_flags & CSUM_TCP) {
if (csum_flags & CSUM_TCP | CSUM_IP6_TCP) {
tucso = hdr_len + offsetof(struct tcphdr, th_sum);
cmd |= E1000_TXD_CMD_TCP;
} else

7
sys/dev/e1000/if_em.h
View file

@ -333,10 +333,13 @@
#define EM_TSO_SIZE 65535
#define EM_TSO_SEG_SIZE 4096 /* Max dma segment size */
#define ETH_ZLEN 60
#define EM_CSUM_OFFLOAD (CSUM_IP | CSUM_IP_UDP | CSUM_IP_TCP) /* Offload bits in mbuf flag */
/* Offload bits in mbuf flag */
#define EM_CSUM_OFFLOAD (CSUM_IP | CSUM_IP_UDP | CSUM_IP_TCP | \
CSUM_IP6_UDP | CSUM_IP6_TCP)
#define IGB_CSUM_OFFLOAD (CSUM_IP | CSUM_IP_UDP | CSUM_IP_TCP | \
CSUM_IP_SCTP | CSUM_IP6_UDP | CSUM_IP6_TCP | \
CSUM_IP6_SCTP) /* Offload bits in mbuf flag */
CSUM_IP6_SCTP)
#define IGB_PKTTYPE_MASK 0x0000FFF0
#define IGB_DMCTLX_DCFLUSH_DIS 0x80000000 /* Disable DMA Coalesce Flush */