robin.thoni/ipxe - git rthoni.com

Commit graph

Autor	SHA1	Nachricht	Datum
Michael Brown	f77815f2b1	Kill off hotplug.h and just make net devices normal reference-counted structures. DHCP still broken and #if 0'd out.	vor 17 Jahren
Michael Brown	3601103381	Modify process semantics; rescheduling is now automatic. Add reference-counting to processes. Add timer_running() test.	vor 17 Jahren
Michael Brown	3e2c6b6736	pkbuff->iobuf changeover Achieved via Perl using: perl -pi -e 's/pk_buff/io_buffer/g; s/Packet buffer/I\/O buffer/ig; ' \ -e 's/pkbuff\.h/iobuf.h/g; s/pkb_/iob_/g; s/_pkb/_iob/g; ' \ -e 's/pkb/iobuf/g; s/PKB/IOB/g;'	vor 17 Jahren
Michael Brown	520d9c36af	Updated ISAPnP, EISA, MCA and ISA buses to current device model. ISA 3c509 is currently non-functional, although the EISA (3c509-eisa) and MCA (3c529) variants should build OK. None of this code is yet tested.	vor 17 Jahren
Michael Brown	73b09ecba6	Use stdio.h instead of vsprintf.h	vor 17 Jahren
Michael Brown	c014f607a8	Use total free memory as advertised window. This seems to be sufficient to avoid drops even on slow NICs.	vor 17 Jahren
Michael Brown	05f4c3d176	Remove the one-packet-per-poll-cycle limit; it seems to no longer be needed now that performance is up.	vor 17 Jahren
Michael Brown	06630a3036	Switch from calloc() to malloc()+memset() to match the practices used almost everywhere else.	vor 17 Jahren
Michael Brown	037da9d840	I hate NULL pointer dereferences.	vor 17 Jahren
Michael Brown	1fa5cd0e2b	Add find_pci_netdev()	vor 17 Jahren
Michael Brown	dad5274522	Add "name" field to struct device to allow human-readable hardware device names. Add "dev" pointer in struct net_device to tie network interfaces back to a hardware device. Force natural alignment of data types in __table() macros. This seems to prevent gcc from taking the unilateral decision to occasionally increase their alignment (which screws up the table packing).	vor 17 Jahren
Michael Brown	d24b80acf2	Added network interface management commands	vor 17 Jahren
Michael Brown	98b6154c3e	Add "name" field to network device, to facilitate netdev commands.	vor 17 Jahren
Michael Brown	c65fae2475	Add RX quotas to the net device poll() method. This avoids the problem of alloc_pkb() exhaustion when e.g. an iSCSI-booted DOS session is left idle for a long time at the C:\ prompt and builds up a huge packet backlog.	vor 17 Jahren
Michael Brown	b7fcfe8ece	Added net device TX queue; this will be needed to support the PXE UNDI API (which will need us to wait for TX completions). Added debug autocolourisation to netdevice.c	vor 17 Jahren
Michael Brown	0c03bb5a9a	Make open() and close() an official part of the netdevice API. Call netdevice's poll() and transmit() methods only when device is open.	vor 17 Jahren
Michael Brown	bdf79ec8dc	Use hotplug support to notify persistent reference holders when a net_device is unregistered.	vor 17 Jahren
Michael Brown	a646e38f03	Use stdlib.h for malloc() instead of malloc.h.	vor 17 Jahren
Michael Brown	88e38fa148	We don't actually have a stdio.h header file. Our printf() functions are defined in vsprintf.h. (This may change, since vsprintf.h is a non-standard name, but for now it's the one to use.) There should be no need to include vsprintf.h just for DBG() statements, since include/compiler.h forces it in for a debug build anyway.	vor 18 Jahren
Marty Connor	6ac78f6aff	added stdio.h to includes for DBG compilation	vor 18 Jahren
Michael Brown	a3d508b648	Clarified packet ownership transfer between a few functions. Added a large number of missing calls to free_pkb(). In the case of UDP, no received packets were ever freed, which lead to memory exhaustion remarkably quickly once pxelinux started up. In general, any function with _rx() in its name which accepts a pk_buff must either call free_pkb() or pass the pkb to another _rx() function (e.g. the next layer up the stack). Since the UDP (and TCP) layers don't pass packet buffers up to the higher-layer protocols (the "applications"), they must free the packet buffer after calling the application's newdata() method.	vor 18 Jahren
Michael Brown	e74e20cb55	Remove the static IP address hack from netdevice.c, and change the default test to the DHCP test.	vor 18 Jahren
Michael Brown	3c8aafa209	Simplify RX data path. Kill off the static single net device and move to proper dynamic registration (which we need with the new device model). Break the (flawed) assumption that all network-layer protocols can use ARP; such network-layer protocols (i.e. IPv4) must now register as an ARP protocol using ARP_NET_PROTOCOL() and provide a single method for checking the existence of a local network-layer address.	vor 18 Jahren
Michael Brown	bbd9e28061	Simplify TX datapath.	vor 18 Jahren
Michael Brown	cd3ecac809	Avoid causing TX overflow on small TX queues.	vor 18 Jahren
Michael Brown	352bf1bda2	Move init.h to gpxe/init.h.	vor 18 Jahren
Michael Brown	bac97eb979	Change semantics of network API so that packet-absorbing calls always take ownership of the packet, rather than doing so only if they return success. This breaks semantic compatibility with Linux's hard_start_xmit() method, but means that we don't have to worry so much about error cases. Split mechanism of processing received packets (net_rx_process()) out from policy (net_step()), preparatory to putting net_step() in a separate object.	vor 18 Jahren
Michael Brown	129c6c3968	Network layer now works as a proof of concept	vor 18 Jahren
Michael Brown	fdc2ee79db	Network API now allows for multiple network devices (although the implementation allows for only one, and does so without compromising on the efficiency of static allocation). Link-layer protocols are cleanly separated from the device drivers. Network-layer protocols are cleanly separated from individual network devices. Link-layer and network-layer protocols are cleanly separated from each other.	vor 18 Jahren
Michael Brown	6209bd873a	First sketch of a new net device API.	vor 18 Jahren

30 Commits (acd598b4f93473f1792686a8ab691c88f1d4d8e5)