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* Move ethernet VLAN tags from mtags to its own mbuf packet header fieldandre2006-09-171-6/+6
| | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | | m_pkthdr.ether_vlan. The presence of the M_VLANTAG flag on the mbuf signifies the presence and validity of its content. Drivers that support hardware VLAN tag stripping fill in the received VLAN tag (containing both vlan and priority information) into the ether_vtag mbuf packet header field: m->m_pkthdr.ether_vtag = vlan_id; /* ntohs()? */ m->m_flags |= M_VLANTAG; to mark the packet m with the specified VLAN tag. On output the driver should check the mbuf for the M_VLANTAG flag to see if a VLAN tag is present and valid: if (m->m_flags & M_VLANTAG) { ... = m->m_pkthdr.ether_vtag; /* htons()? */ ... pass tag to hardware ... } VLAN tags are stored in host byte order. Byte swapping may be necessary. (Note: This driver conversion was mechanic and did not add or remove any byte swapping in the drivers.) Remove zone_mtag_vlan UMA zone and MTAG_VLAN definition. No more tag memory allocation have to be done. Reviewed by: thompsa, yar Sponsored by: TCP/IP Optimization Fundraise 2005
* Fix invalid reference of mbuf chains.yongari2006-08-121-13/+13
| | | | | | | Use proper pointer dereference to inform modified mbuf chains to caller. In collaboration with: glebius
* Add stge(4), a driver for Sundance/Tamarack TC9021 Gigabit Ethernetyongari2006-07-252-0/+3395
controller ported from NetBSD. It supports the following Gigabit Ethernet adapters. o Antares Microsystems Gigabit Ethernet o ASUS NX1101 Gigabit Ethernet o D-Link DL-4000 Gigabit Ethernet o IC Plus IP1000A Gigabit Ethernet o Sundance ST-2021 Gigabit Ethernet o Sundance ST-2023 Gigabit Ethernet o Sundance TC9021 Gigabit Ethernet o Tamarack TC9021 Gigabit Ethernet The IP1000A Gigabit Ethernet is also found on some motherboards (LOM) from ABIT. Unlike NetBSD stge(4) it does not require promiscuous mode operation to revice packet and it supports all hardware features(TCP/UDP/IP checksum offload, VLAN tag stripping/insertion features and JUMBO frame) and polling(4). Due to lack of hardware, hardwares that have TBI trantransceivers were not tested at all. Special thanks to wpaul who provided valauble datasheet for the controller and helped to debug jumbo frame related issues. Whitout his datasheet I would have spent many hours to debug this chip. Tested on: i386, sparc64
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