openslx-ng/ipxe.git/src/net/netdevice.c, branch v0.9.6

[netdevice] Provide function to retrieve the most recently opened net device

2008-11-21T20:34:02+00:00

There are currently four places within the codebase that use a heuristic to guess the "boot network device", with varying degrees of success. Add a feature to the net device core to maintain a list of open network devices, in order of opening, and provide a function last_opened_netdev() to retrieve the most recently opened net device. This should do a better job than the current assortment of guess_boot_netdev() functions.

[netdevice] Retain and report detailed error breakdowns

2008-11-08T05:30:30+00:00

netdev_rx_err() and netdev_tx_complete_err() get passed the error code, but currently use it only in debug messages. Retain error numbers and frequencey counts for up to NETDEV_MAX_UNIQUE_ERRORS (4) different errors for each of TX and RX. This allows the "ifstat" command to report the reasons for TX/RX errors in most cases, even in non-debug builds.

[settings] Add the notion of a "tag magic" to numbered settings

2008-10-30T21:47:14+00:00

Settings can be constructed using a dotted-decimal notation, to allow for access to unnamed settings. The default interpretation is as a DHCP option number (with encapsulated options represented as ".". In several contexts (e.g. SMBIOS, Phantom CLP), it is useful to interpret the dotted-decimal notation as referring to non-DHCP options. In this case, it becomes necessary for these contexts to ignore standard DHCP options, otherwise we end up trying to, for example, retrieve the boot filename from SMBIOS. Allow settings blocks to specify a "tag magic". When dotted-decimal notation is used to construct a setting, the tag magic value of the originating settings block will be ORed in to the tag number. Store/fetch methods can then check for the magic number before interpreting arbitrarily-numbered settings.

[netdevice] Change link-layer push() and pull() methods to take raw types

2008-10-16T04:13:40+00:00

EFI requires us to be able to specify the source address for individual transmitted packets, and to be able to extract the destination address on received packets. Take advantage of this to rationalise the push() and pull() methods so that push() takes a (dest,source,proto) tuple and pull() returns a (dest,source,proto) tuple.

[undi] Fill in ProtType correctly in PXENV_UNDI_ISR

2008-08-20T02:21:37+00:00

Determine the network-layer packet type and fill it in for UNDI clients. This is required by some NBPs such as emBoot's winBoot/i. This change requires refactoring the link-layer portions of the gPXE netdevice API, so that it becomes possible to strip the link-layer header without passing the packet up the network stack.

[Settings] Use a settings applicator to configure IPv4 routes.

2008-03-21T00:01:27+00:00

[Settings] Add per-netdevice settings block

2008-03-20T21:06:53+00:00

Add a configuration settings block for each net device. This will provide the parent scope for settings applicable only to that network device (e.g. non-volatile options stored on the NIC, options obtained via DHCP, etc.). Expose the MAC address as a setting.

Force a netdevice poll in net_tx() before attempting to transmit

2007-10-04T13:57:33+00:00

packet, to work around the problem whereby small TX rings get backed up because we haven't yet poll()ed for TX completions.

Minor debug message improvement.

2007-09-21T00:17:46+00:00

Use net_device_operations structure and netdev_nullify() to allow for

2007-07-07T15:43:39+00:00

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.