Page MenuHomeFreeBSD
Differential D4131 Diff 10125 sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c

Changeset View

Standalone View

View Options

sys/dev/hyperv/netvsc/hv_netvsc_drv_freebsd.c

Show First 20 Lines • Show All 122 Lines • ▼ Show 20 Lines
/* /*
* It looks like offset 0 of buf is reserved to hold the softc pointer. * It looks like offset 0 of buf is reserved to hold the softc pointer.
* The sc pointer evidently not needed, and is not presently populated. * The sc pointer evidently not needed, and is not presently populated.
* The packet offset is where the netvsc_packet starts in the buffer. * The packet offset is where the netvsc_packet starts in the buffer.
*/ */
#define HV_NV_SC_PTR_OFFSET_IN_BUF 0 #define HV_NV_SC_PTR_OFFSET_IN_BUF 0
#define HV_NV_PACKET_OFFSET_IN_BUF 16 #define HV_NV_PACKET_OFFSET_IN_BUF 16
#define CSUM_FOR_OUTBOUND \
(CSUM_IP|CSUM_IP_UDP|CSUM_IP_TCP|CSUM_IP_SCTP|CSUM_IP_TSO|CSUM_IP_ISCSI| \
CSUM_IP6_UDP|CSUM_IP6_TCP|CSUM_IP6_SCTP|CSUM_IP6_TSO|CSUM_IP6_ISCSI)
/* /*
* Data types * Data types
*/ */
struct hv_netvsc_driver_context { struct hv_netvsc_driver_context {
uint32_t drv_inited; uint32_t drv_inited;
}; };
▲ Show 20 Lines • Show All 426 Lines • ▼ Show 20 Lines if (m_head->m_flags & M_VLANTAG) {
/* VLAN info immediately follows rppi struct */ /* VLAN info immediately follows rppi struct */
rppi_vlan_info = (ndis_8021q_info *)((char*)rppi + rppi_vlan_info = (ndis_8021q_info *)((char*)rppi +
rppi->per_packet_info_offset); rppi->per_packet_info_offset);
/* FreeBSD does not support CFI or priority */ /* FreeBSD does not support CFI or priority */
rppi_vlan_info->u1.s1.vlan_id = rppi_vlan_info->u1.s1.vlan_id =
packet->vlan_tci & 0xfff; packet->vlan_tci & 0xfff;
} }
if (0 == m_head->m_pkthdr.csum_flags) { /* Ignore flags for checksum already calculated or valid */
whuUnsubmitted
Not Done
Inline Actions

Can you put a little more detailed comment here, say to only check for out bound flags and ignore the inbound ones?

whu: Can you put a little more detailed comment here, say to only check for out bound flags and…
if (0 == (m_head->m_pkthdr.csum_flags & CSUM_FOR_OUTBOUND)) {
goto pre_send; goto pre_send;
} }
eh = mtod(m_head, struct ether_vlan_header*); eh = mtod(m_head, struct ether_vlan_header*);
if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) { if (eh->evl_encap_proto == htons(ETHERTYPE_VLAN)) {
ether_len = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN; ether_len = ETHER_HDR_LEN + ETHER_VLAN_ENCAP_LEN;
} else { } else {
ether_len = ETHER_HDR_LEN; ether_len = ETHER_HDR_LEN;
▲ Show 20 Lines • Show All 727 Lines • Show Last 20 Lines