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Index: sys/dev/e1000/igb_txrx.c
===================================================================
--- sys/dev/e1000/igb_txrx.c
+++ sys/dev/e1000/igb_txrx.c
@@ -178,37 +178,43 @@
/* Set the ether header length */
vlan_macip_lens |= pi->ipi_ehdrlen << E1000_ADVTXD_MACLEN_SHIFT;
- switch(pi->ipi_etype) {
- case ETHERTYPE_IP:
- type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_IPV4;
- break;
- case ETHERTYPE_IPV6:
- type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_IPV6;
- break;
- default:
- offload = FALSE;
- break;
+ if (pi->ipi_csum_flags & CSUM_IP) {
+ switch(pi->ipi_etype) {
+ case ETHERTYPE_IP:
+ type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_IPV4;
+ break;
+ case ETHERTYPE_IPV6:
+ type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_IPV6;
+ break;
+ default:
+ offload = FALSE;
+ break;
+ }
}
+ else
+ offload = FALSE;
vlan_macip_lens |= pi->ipi_ip_hlen;
type_tucmd_mlhl |= E1000_ADVTXD_DCMD_DEXT | E1000_ADVTXD_DTYP_CTXT;
- switch (pi->ipi_ipproto) {
- case IPPROTO_TCP:
- if (pi->ipi_csum_flags & (CSUM_IP_TCP | CSUM_IP6_TCP))
- type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_TCP;
- break;
- case IPPROTO_UDP:
- if (pi->ipi_csum_flags & (CSUM_IP_UDP | CSUM_IP6_UDP))
- type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_UDP;
- break;
- case IPPROTO_SCTP:
- if (pi->ipi_csum_flags & (CSUM_IP_SCTP | CSUM_IP6_SCTP))
- type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_SCTP;
- break;
- default:
- offload = FALSE;
- break;
+ if (offload) {
+ switch (pi->ipi_ipproto) {
+ case IPPROTO_TCP:
+ if (pi->ipi_csum_flags & (CSUM_IP_TCP | CSUM_IP6_TCP))
+ type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_TCP;
+ break;
+ case IPPROTO_UDP:
+ if (pi->ipi_csum_flags & (CSUM_IP_UDP | CSUM_IP6_UDP))
+ type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_UDP;
+ break;
+ case IPPROTO_SCTP:
+ if (pi->ipi_csum_flags & (CSUM_IP_SCTP | CSUM_IP6_SCTP))
+ type_tucmd_mlhl |= E1000_ADVTXD_TUCMD_L4T_SCTP;
+ break;
+ default:
+ offload = FALSE;
+ break;
+ }
}
if (offload) /* For the TX descriptor setup */

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