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Author SHA1 Message Date
Michael Brown
476d02051f Windows Server 2003 sulks if we feed it an empty region in base memory 
as a result of our memory map editing, so strip out any empty regions.
 2006-06-09 12:20:03 +00:00
Michael Brown
6fd1bd0510 Added missing check-in 2006-06-09 10:19:17 +00:00
Michael Brown
e90b64d625 Added sketch of bit-bashing interface common code 2006-06-08 19:47:09 +00:00
Michael Brown
17eea9f933 Fix bug with >256 cylinders. 
Allow our functions to return a non-zero, non-error status (since the
INT 13 Extensions Check has to return the API version in the register
that is otherwise always used for the error code).

Report a non-zero API version from the INT 13 Extensions Check; GRUB
now uses extended reads.
 2006-06-08 19:28:08 +00:00
Dan Lynch
ad1aca0634 - separated curses.c out into separate source files to optimise 
library use later on
- some small mods to existing functions
 2006-06-08 17:23:37 +00:00
Michael Brown
1697c78848 Legacy drivers cannot cope with multiple active devices. 2006-06-08 15:18:27 +00:00
Michael Brown
fdf62528ca It's astonishing how long really fundamental bugs can survive without 
being noticed...
 2006-06-08 15:06:09 +00:00
Michael Brown
191a906338 Fix some remarkably obvious mistakes in pcidirect.h 2006-06-08 14:57:04 +00:00
Michael Brown
763b7e2ef9 We now have just romprefix, rather than having isaprefix and pciprefix 2006-06-06 15:41:21 +00:00
Michael Brown
ef37f78cbe Cut out almost all the optional code paths, drastically simplifying the 
flow of control through this code.

We now always add PCI and PnP headers even for ISA ROMs; there's no harm
in doing so.

UNDI loader is still missing.
 2006-06-06 15:33:39 +00:00
Michael Brown
e7eca7b7cb Code segment may not be writable; create the temporary pointer to the GDT 
on the stack.
 2006-06-06 15:30:28 +00:00
Michael Brown
46253ba618 Calculate _rom_size for the ROM prefix 2006-06-06 15:29:39 +00:00
Michael Brown
8d0c5f3302 Use byte 6 for the checksum, rather than byte 5. (Byte 5 may be part of 
the jmp instruction).
 2006-06-06 15:29:14 +00:00
Michael Brown
02df45352c Force pci.o to be included. 
Print warning message at probe time.
 2006-06-05 16:17:52 +00:00
Michael Brown
754cfdfcf4 Legacy drivers will not pad when necessary 2006-06-05 16:10:36 +00:00
Michael Brown
7826de3f7e PNIC doesn't auto-pad. 2006-06-05 16:10:14 +00:00
Michael Brown
286bf68faf Added a very quick and dirty compatibility layer, to allow 
not-yet-updated drivers to at least function.
 2006-06-05 15:45:21 +00:00
Michael Brown
c3e41e6fd1 Added soon-to-be-requisite missing include. 2006-06-05 15:41:22 +00:00
Dan Lynch
34cfbf55a4 - added most slk functions 2006-06-05 15:03:11 +00:00
Michael Brown
d78581297b Improve tcpdump legibility. 2006-06-01 19:23:52 +00:00
Michael Brown
6ab4b99f41 Quick hack to avoid trying to use an uninitialised net device. 2006-06-01 15:53:05 +00:00
Michael Brown
48fb6c6dc2 Updated retry timer mechanism to incorporate smoothed RTT estimation. 
AoE now uses the retry timer mechanism.
 2006-06-01 14:33:52 +00:00
Michael Brown
50415b3aca Make DBG_DISCARD correct 2006-06-01 12:11:09 +00:00
Michael Brown
1f394c2f7c Backing out last change; no immediate plans to make the whole block-device 
layer asynchronous, so keeping the sync/async boundary within aoedev.c
seems cleanest for now.
 2006-06-01 11:14:59 +00:00
Michael Brown
d6866202f9 Until we have a functioning UDP stack and PXE API again, there's not much 
point trying to use the old boot sequence.  Replaced with a call to the
AoE demo code, so that people can at least build and try something useful.
 2006-06-01 11:07:31 +00:00
Michael Brown
d21fc3610f Added sample AoE test code to tree 2006-06-01 11:05:36 +00:00
Michael Brown
f6d20bb0f4 Put in a method to get the MAC address for the AoE target. (It's not 
elegant, but it works).
 2006-05-31 19:12:17 +00:00
Michael Brown
99ef98d0bf ATA devices are now asynchronous. The ATA layer itself now performs the 
async_wait(), though we may wish to move this higher up the stack, and
consider making the block device model asynchronous.  (There is only a
marginal cost for synchronous devices, since they can simply call
async_done() before returning; async_wait() will work seamlessly in this
situation).
 2006-05-31 18:57:11 +00:00
Michael Brown
cf96d325d8 Missing from previous checkin. 
This is the core portion of the async I/O interface.
 2006-05-31 18:45:43 +00:00
Michael Brown
68125bc441 Added generic asynchronous operations code. 
Removed data_in_len and data_out_len from ata_command structure; the
lengths are implied by the sector count and the presence of the data_in
or data_out pointers.

Changed AoE code to use subcommands by default, and made aoe_issue()
nonblocking (with completion via async_wait()).
 2006-05-31 14:34:17 +00:00
Michael Brown
73a449e96b Added drivers/ata directory (forgot to check this in previously). 2006-05-31 14:31:48 +00:00
Michael Brown
552b4a178e One bit of an ASCII character can make a big difference. 2006-05-29 21:00:00 +00:00
Michael Brown
1db1a6dad3 Added first sketch of a generic retry timer mechanism. The idea is to use 
these timer objects in AoE and UDP protocols (where there is no underlying
retransmission mechanism) without requiring each protocol to implement its
own individual retry logic.  Eventually, we should be able to use the same
timer code for TCP retransmissions as well.
 2006-05-29 14:55:07 +00:00
Michael Brown
6541338897 Handle multi-sector reads by splitting them into subcommands. 2006-05-29 08:25:31 +00:00
Michael Brown
9a2a52693d Initial AoE implementation. Limitations are: 
Cannot yet handle reads of more than two sectors

  No retransmission

  No way to find out a target's MAC address (this proof of concept uses
  broadcasts)

These limitations shall not last long!  :)
 2006-05-28 23:29:43 +00:00
Michael Brown
6f998cecb3 Use separate data-in and data-out buffers. 
Increase code simplicity at the expense of around 64 bytes.
 2006-05-28 23:26:42 +00:00
Michael Brown
6d6252067f Add ETH_P_AOE 2006-05-28 21:47:52 +00:00
Michael Brown
35b04b1514 Tidy up comment 2006-05-28 14:40:04 +00:00
Michael Brown
041a04335e Fixed assembly on old versions of gas 2006-05-28 14:21:29 +00:00
Michael Brown
f743de4858 Added tcp_kick(). This speed up LILO and GRUB booting by almost two 
orders of magnitude.
 2006-05-27 19:01:20 +00:00
Michael Brown
cd3ecac809 Avoid causing TX overflow on small TX queues. 2006-05-27 13:55:36 +00:00
Michael Brown
70ef6dbb7c Rewrote to use the new net driver API, the updated PCI API, and the 
generic three-wire serial device support for EEPROM access.
 2006-05-27 13:45:14 +00:00
Michael Brown
69b1f24a97 I have no idea how this ever worked before. 2006-05-27 13:43:56 +00:00
Michael Brown
6c50564724 Make PKB_ZLEN the minimum possible size of packet buffer (to allow for 
hardware that can't autopad).
 2006-05-27 13:39:45 +00:00
Michael Brown
1dbafa8950 Tidied up debugging messages 2006-05-27 13:38:49 +00:00
Michael Brown
aa2468babe Added abstraction layer for a three-wire serial device (e.g. the EEPROM 
used on RTL8139 cards).
 2006-05-26 15:39:24 +00:00
Michael Brown
2f392ee13e Need write permission to /dev/net/tun, not just read. 2006-05-26 08:15:31 +00:00
Michael Brown
9f86754f90 Updated to work with libprefix. 2006-05-25 22:04:47 +00:00
Michael Brown
29340d7728 Documented the fact that the prefix can prot_call(main) without 
worrying about its stack being destroyed during the Etherboot run.
 2006-05-25 22:04:17 +00:00
Michael Brown
0479e9f541 relocate.o is now dragged in by the objects that require it; there is no 
need for a CONFIG_RELOCATE.
 2006-05-25 01:34:13 +00:00