Commit Graph

29 Commits (58f5565eb04f08c51b4f123930294c3d033e3a8e)

Author SHA1 Message Date
Michael Brown 304d1e9fa5 Don't rely on retry.c's periodically calling currticks() in order to
allow the UNDI NIC interrupt to happen.
2007-07-29 15:27:47 +01:00
Michael Brown 6d2e4e719c Move uninitialised .data16 variables to .bss16; saves around 2000
bytes of useless zeroes in the final image.
2007-07-16 13:22:12 +01:00
Michael Brown 8624fdc445 Kill off the enforced RX quota; it only seems to hurt on real hardware. 2007-07-14 00:30:11 +01:00
Michael Brown 2ac7694c3e Improve error reporting for strange length combinations reported by
the UNDI stack.

Ignore obviously invalid length combinations (as returned by
e.g. VMWare's PXE stack).

Limit to one packet per poll to avoid memory exhaustion.
2007-07-10 20:59:21 +01:00
Michael Brown f6f9a3098d Report RX errors via netdev_rx_err() 2007-07-10 17:01:18 +01:00
Michael Brown edc4648c39 Protect ISR against failure to unhook. 2007-07-10 04:34:53 +01:00
Michael Brown 027fed72c1 Working code to call the PXE stack from within the ISR. 2007-07-10 04:21:24 +01:00
Michael Brown 4c418d2100 Use net_device_operations structure and netdev_nullify() to allow for
safe dropping of the netdev ref by the driver while other refs still
exist.

Add netdev_irq() method.  Net device open()/close() methods should no
longer enable or disable IRQs.

Remove rx_quota; it wasn't used anywhere and added too much complexity
to implementing correct interrupt-masking behaviour in pxe_undi.c.
2007-07-07 16:43:39 +01:00
Michael Brown 2dc8ed1eb8 Work around Etherboot 5.4 bug when multiple packets are received. 2007-07-03 15:53:29 +01:00
Michael Brown 0958726ebb It's not just Etherboot that fails to generate TX completions. 2007-07-03 14:43:57 +01:00
Michael Brown adb3dd03e5 Document TX completion bug. 2007-07-03 13:17:58 +01:00
Michael Brown e42eba4af4 Use a common base-memory packet buffer for DHCP construction (as used
by PXE and NBI) and UNDI packets (as used by undinet and UNDI).
2007-07-02 18:33:41 +01:00
Michael Brown f77815f2b1 Kill off hotplug.h and just make net devices normal reference-counted
structures.

DHCP still broken and #if 0'd out.
2007-06-27 14:48:31 +01:00
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;'
2007-05-19 18:39:40 +00:00
Michael Brown 7d9267561b Don't call PXENV_STOP_UNDI in the kpxeprefix. This slighy breaks the
clean separation between loading and starting, but does mean that more
PXE stacks survive the process.
2007-01-29 15:21:10 +00:00
Michael Brown d0f4e9a54b Add some trace messages for important events 2007-01-13 17:54:41 +00:00
Michael Brown 4b77061881 Pick up the return status code from the correct place now that we
don't overwrite the parameter block until *after* the debug code.
2007-01-13 16:55:57 +00:00
Michael Brown 5817c9f114 When an UNDI API call fails, print everything there is to know about it. 2007-01-13 16:53:55 +00:00
Michael Brown 6a3c76c8e0 Always send EOI. We can't feasibly share interrupts (since we have no
clue what the "previous" interrupt handler will do, which could range
from "just an iret" to "disable the interrupt"), and that means that
we have to take responsibility for ACKing all interrupts.  Joy.
2007-01-13 14:45:26 +00:00
Michael Brown f81bf3bc52 We *do* have a __data16_array after all! 2007-01-12 02:37:47 +00:00
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).
2007-01-10 04:22:09 +00:00
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.
2007-01-09 21:47:01 +00:00
Michael Brown 18e5353bed Rename pkb_available() to pkb_tailroom() for consistency with Linux's
skb_tailroom().  Add pkb_headroom().
2007-01-09 20:56:31 +00:00
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
2007-01-09 20:18:31 +00:00
Michael Brown 3c2cc59d25 Added ability to break ISR processing over several calls to poll().
This will allow us to implement RX quotas.
2007-01-09 17:04:10 +00:00
Michael Brown aa7bda7b47 Send EOI after enabling interrupt, in case the device had asserted IRQ
to the PIC while it was disabled.
2007-01-09 14:53:19 +00:00
Michael Brown 66f7bcc785 Tidied up debug messages 2007-01-08 03:34:06 +00:00
Michael Brown 675fe200e5 Use "struct undi_device" instead of "struct pxe_device", and use the
function prefix "undinet_" and the variable name "undinic" in undinet.c,
so that we can reserve the variable name "undi" for a struct undi_device.

The idea is that we preserve the Etherboot 5.4 convention that the "UNDI"
code refers to our using an underlying UNDI stack, while the "PXE" code
refers to our providing a PXE API.
2007-01-08 02:24:53 +00:00
Michael Brown 36c1e1aa57 Renamed undi.c to undinet.c. (undi.c will become the UNDI PCI driver) 2007-01-08 02:02:07 +00:00