Re: rx_ring
Donald Becker <[email protected]> Fri, 15 Aug 2003 17:26:12 -0400 (EDT)
| Newsgroups | gmane.linux.drivers.realtek.devel |
|---|---|
| Message-ID | <Pine.LNX.4.44.0308151711510.5423-100000@beohost> |
On Fri, 15 Aug 2003, Bruce Who wrote: > May someone tell me what's rx_ring and tx_ring?what's their meaning? The rx_ring is the main memory region that the rtl8139 writes as it's reading. The tx_ring does not exist in the rtl8139 driver. On other PCI NIC drivers it's holds the ring for descriptor -- per-packet status information and pointers to the packet data. All other PCI NIC chips can receive directly into OS netowrk buffers. With those drivers the rx_ring points to the receive descriptor ring. -- Donald Becker [email protected] Scyld Computing Corporation http://www.scyld.com 914 Bay Ridge Road, Suite 220 Scyld Beowulf cluster system Annapolis MD 21403 410-990-9993