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Commit Graph

3018 Commits

Author SHA1 Message Date
2b9f7f042c [pxe] Avoid printf format warning on some compilers
Tested-by: Joshua Oreman <oremanj@xenon.get-linux.org>
2009-08-02 22:45:24 +01:00
5552a1b202 [tcp] Avoid printf format warnings on some compilers
In several places, we currently use size_t to represent a difference
between TCP sequence numbers.  This can cause compiler warnings
relating to printf format specifiers, since the result of
(uint32_t+size_t) may be an unsigned long on some compilers.

Fix by using uint32_t for all variables that represent a difference
between TCP sequence numbers.

Tested-by: Joshua Oreman <oremanj@xenon.get-linux.org>
2009-08-02 22:44:57 +01:00
f42b2932f8 [build] Allow safe concurrent builds of .iso, .liso and .sdsk targets
The geniso, genliso and gensdsk scripts contain hard-coded temporary
directory names, and so could potentially collide with each other when
run as part of a concurrent build (e.g. "make -j 4").

Fix by using mktemp to generate suitable temporary directory names.
2009-08-02 11:17:02 +01:00
b570c2efd8 [build] Make .liso image generation silent unless errors occur 2009-08-02 11:09:08 +01:00
96f4f96540 [build] Add syslinux floppy image type .sdsk
We add a syslinux floppy disk type using parts of the genliso script.
This floppy image cat be dd'ed to a physical floppy or used in
instances where a virtual floppy with an mountable DOS filesystem is
useful.

We also modify the genliso script to only generate .liso images
rather than creating images depending on how it is called.

Signed-off-by: Michael Brown <mcb30@etherboot.org>
2009-08-02 11:04:13 +01:00
14ae602ef0 [rtl818x] Add driver for Realtek 8180/8185 wireless cards 2009-08-01 19:02:48 +01:00
ce64398f87 [802.11] Add support for 802.11 devices with software MAC layer
This is required for all modern 802.11 devices, and allows drivers
to be written for them with minimally more effort than is required
for a wired NIC.

Signed-off-by: Michael Brown <mcb30@etherboot.org>
Modified-by: Michael Brown <mcb30@etherboot.org>
2009-08-01 19:00:32 +01:00
bb2cf3c8d7 [hermon] Add support for RC queue pairs 2009-07-17 23:06:35 +01:00
cd5a21359c [hermon] Allow software GMA to receive packets destined for QP1
The Linux IB Communication Manager will always send MADs to QP1,
rather than back to the originating QP.  On Hermon, QP1 is by default
handled by the embedded firmware.  We can change this, but the cost is
that we have to handle both QP0 and QP1 (i.e. we have to provide SMA
as well as GMA service in software), and we have to use MLX queues
rather than standard UD queues (i.e. we have to construct the UD
datagrams by hand).

There doesn't seem to be any viable way around this situation, ugly
though it is.
2009-07-17 23:06:35 +01:00
de50a19ae3 [hermon] Disable debugging around mapping of firmware tables 2009-07-17 23:06:35 +01:00
dd2788594b [hermon] Remove an unnecessary check for GID-less transmissions 2009-07-17 23:06:35 +01:00
cc2e767b5a [infiniband] Add Communication Manager (CM)
The Communication Manager is responsible for handling the setup and
teardown of RC connections.
2009-07-17 23:06:35 +01:00
c939bc57ff [infiniband] Add infrastructure for RC queue pairs
Queue pairs are now assumed to be created in the INIT state, with a
call to ib_modify_qp() required to bring the queue pair to the RTS
state.

ib_modify_qp() no longer takes a modification list; callers should
modify the relevant queue pair parameters (e.g. qkey) directly and
then call ib_modify_qp() to synchronise the changes to the hardware.

The packet sequence number is now a property of the queue pair, rather
than of the device.

Each queue pair may have an associated address vector.  For RC queue
pairs, this is the address vector that will be programmed in to the
hardware as the remote address.  For UD queue pairs, it will be used
as the default address vector if none is supplied to ib_post_send().
2009-07-17 23:06:35 +01:00
ea6eb7f7ed [infiniband] Pass a generic MAD to ib_set_port_info() 2009-07-17 23:06:35 +01:00
0095e18d4c [infiniband] Expose supported and enabled link speeds and widths 2009-07-17 23:06:35 +01:00
773028d34e [infiniband] Allow MAD handlers to indicate response via return value
Now that MAD handlers no longer return a status code, we can allow
them to return a pointer to a MAD structure if and only if they want
to send a response.  This provides a more natural and flexible
approach than using a "response method" field within the handler's
descriptor.
2009-07-17 23:06:35 +01:00
94876f4bb6 [infiniband] Remove the return status code from MAD handlers
MAD handlers have to set the status fields within the MAD itself
anyway, in order to provide a meaningful response MAD; the additional
gPXE return status code is just noise.

Note that we probably don't need to ever explicitly set the status to
IB_MGMT_STATUS_OK, since it should already have this value from the
request.  (By not explicitly setting the status in this way, we can
safely have ib_sma_set_xxx() call ib_sma_get_xxx() in order to
generate the GetResponse MAD without worrying that ib_sma_get_xxx()
will clear any error status set by ib_sma_set_xxx().)
2009-07-17 23:06:35 +01:00
f1d92fa886 [infiniband] Allow external QPN to differ from real QPN
Most IB hardware seems not to allow allocation of the genuine QPNs 0
and 1, so allow for the externally-visible QPN (as constructed and
parsed by ib_packet, where used) to differ from the real
hardware-allocated QPN.
2009-07-17 23:06:34 +01:00
92cf240020 [infiniband] Always create an SMA and a GMA 2009-07-17 23:06:34 +01:00
80c41b90d2 [infiniband] Add notion of a queue pair type 2009-07-17 23:06:34 +01:00
3f4972db9a [infiniband] Allow completion queue operations to be optional
The send completion handler typically will just free the I/O buffer,
so allow this common case to be handled by the Infiniband core.
2009-07-17 23:06:34 +01:00
0582a84e66 [infiniband] Improve ib_packet debugging messages 2009-07-17 23:06:34 +01:00
47c4aaa9e2 [ipoib] Attempt the broadcast group join only if the link is up
Attempting the broadcast group join while the link is down is
harmless, but can generate annoying volumes of debug messages.
2009-07-17 23:06:34 +01:00
165074c188 [infiniband] Implement SMA as an instance of a GMA
The GMA code was based upon the SMA code.  We can save space by making
the SMA simply an instance of the GMA.
2009-07-17 23:06:34 +01:00
8a852280eb [infiniband] Pass GMA as a parameter to GMA MAD handlers 2009-07-17 23:06:34 +01:00
cb9ef4dee2 [ipoib] Remove the queue set abstraction
Now that IPoIB has to deal with only one set of queues, the queue set
abstraction becomes merely an inconvenient wrapper.
2009-07-17 23:06:34 +01:00
63c112ed38 [ipoib] Kill off the now-unused IPoIB metadata queue set
All packets handled by the metadata queue set now go via the GMA.
2009-07-17 23:06:34 +01:00
0fbf2f6bda [infiniband] Provide a general mechanism for multicast group joins
Generalise out the multicast group membership record code from IPoIB.
2009-07-17 23:06:34 +01:00
3c77fe73a5 [infiniband] Allow for sending MADs via GMA without retransmission 2009-07-17 23:06:34 +01:00
b4155c4ab5 [infiniband] Make qkey and rate optional parameters to ib_post_send()
The queue key is stored as a property of the queue pair, and so can
optionally be added by the Infiniband core at the time of calling
ib_post_send(), rather than always having to be specified by the
caller.

This allows IPoIB to avoid explicitly keeping track of the data queue
key.
2009-07-17 23:06:33 +01:00
8aa2591c06 [ipoib] Clarify new role of IPoIB peer cache as for MAC addresses only
Now that path record lookups are handled entirely via
ib_resolve_path(), the only role of the IPoIB peer cache is as a
lookup table for MAC addresses.  Update the code structure and
comments to reflect this.
2009-07-17 23:06:33 +01:00
06ad481904 [ipoib] Expose the real broadcast MAC
The IPoIB broadcast MAC address varies according to the partition key.
Now that the broadcast MAC address is a property of the network device
rather than of the link layer, we can expose this real MAC address
directly.

The broadcast LID is now identified via a path record lookup; this is
marginally inefficient (since it was present in the MCMemberRecord
GetResponse), but avoids the need to special-case broadcasts when
constructing the address vector in ipoib_transmit().
2009-07-17 23:06:33 +01:00
4d0029611f [ipoib] Use Infiniband broadcast QPN in IPoIB broadcast MAC address
Remove the special handling of the IPoIB broadcast QPN.
2009-07-17 23:06:33 +01:00
d6b47871de [infiniband] Provide a general mechanism for path record lookups
Generalise out the path record lookup code from IPoIB.
2009-07-17 23:06:33 +01:00
1d8c85d112 [infiniband] Create a general management agent
Generalise the subnet management agent into a general management agent
capable of sending and responding to MADs, including support for
retransmissions as necessary.
2009-07-17 23:06:33 +01:00
365b8db5cf [infiniband] Centralise SMA and GMA queue constants 2009-07-17 23:06:33 +01:00
887d296b88 [infiniband] Poll completion queues automatically
Currently, all Infiniband users must create a process for polling
their completion queues (or rely on a regular hook such as
netdev_poll() in ipoib.c).

Move instead to a model whereby the Infiniband core maintains a single
process calling ib_poll_eq(), and polling the event queue triggers
polls of the applicable completion queues.  (At present, the
Infiniband core simply polls all of the device's completion queues.)
Polling a completion queue will now implicitly refill all attached
receive work queues; this is analogous to the way that netdev_poll()
implicitly refills the RX ring.

Infiniband users no longer need to create a process just to poll their
completion queues and refill their receive rings.
2009-07-17 23:06:33 +01:00
1f5c0239b4 [infiniband] Centralise assumption of 2048-byte payloads
IPoIB and the SMA have separate constants for the packet size to be
used to I/O buffer allocations.  Merge these into the single
IB_MAX_PAYLOAD_SIZE constant.

(Various other points in the Infiniband stack have hard-coded
assumptions of a 2048-byte payload; we don't currently support
variable MTUs.)
2009-07-17 23:06:33 +01:00
7ba33f7826 [infiniband] Provide ib_get_hca_info() as a commonly-available function 2009-07-17 23:06:33 +01:00
b25a4b6c8a [infiniband] Split queue set functionality out of ipoib.c to ib_qset.c 2009-07-17 23:06:33 +01:00
8868956268 [infiniband] Move non-driver-specific code to net/infiniband 2009-07-17 23:04:07 +01:00
d09290161e [netdevice] Make ll_broadcast per-netdevice rather than per-ll_protocol
IPoIB has a link-layer broadcast address that varies according to the
partition key.  We currently go through several contortions to pretend
that the link-layer address is a fixed constant; by making the
broadcast address a property of the network device rather than the
link-layer protocol it will be possible to simplify IPoIB's broadcast
handling.
2009-07-17 23:02:48 +01:00
54ec3673cc [ata] Make ATA command issuing partially asynchronous
Move the icky call to step() from aoe.c to ata.c; this takes it at
least one step further away from where it really doesn't belong.

Unfortunately, AoE has the ugly aoe_discover() mechanism which means
that we still have a step() loop in aoe.c for now; this needs to be
replaced at some future point.
2009-07-17 23:01:20 +01:00
acfd7cc609 [scsi] Improve SCSI debugging 2009-07-17 23:00:46 +01:00
1d8d8ef2c8 [scsi] Make SCSI command issuing partially asynchronous
Move the icky call to step() from iscsi.c to scsi.c; this takes it at
least one step further away from where it really doesn't belong.
2009-07-17 23:00:09 +01:00
51172783e2 [debug] Use a delimiter to break up DBG_HD() output
Reading sixteen columns of hex digits can be difficult; include a "-"
character to split the output into two groups of eight columns.
2009-07-17 22:58:44 +01:00
b7e93a6a55 [xfer] Always nullify interface while sending close() message
Objects typically call xfer_close() as part of their response to a
close() message.  If the initiating object has already nullified the
xfer interface then this isn't a problem, but it can lead to
unexpected behaviour when the initiating object is aiming to reuse the
connection and so does not nullify the interface.

Fix by always temporarily nullifying the interface during xfer_close()
(as was already being done by xfer_vreopen() in order to work around
this specific problem).

Reported-by: infernix <infernix@infernix.net>
Tested-by: infernix <infernix@infernix.net>
2009-07-06 16:16:59 +01:00
546cc62394 [pxe] Add startpxe and stoppxe commands
These commands can be used to activate or deactivate the PXE API (on a
specifiable network interface).

This is currently of limited use, since most image formats will call
shutdown() before booting the image, meaning that the underlying net
device gets shut down during remove_devices() anyway.
2009-06-28 20:50:23 +01:00
76c915d5bd [ifmgmt] Move ifmgmt_cmd.h to include/hci 2009-06-28 20:28:38 +01:00
6e564323e0 [ifmgmt] Optimise prototype for ifcommon_exec()
ifcommon_exec() was long-ago marked as __attribute__((regparm(2))) in
order to minimise the size of functions that call into it.  Since
then, gPXE has added -mregparm=3 as a general compilation option, and
this "optimisation" is now counter-productive.

Change (and simplify) the prototype to minimise code size given the
current compilation conditions.
2009-06-28 20:24:54 +01:00