openslx-ng/ipxe.git/src/drivers/bus, branch master

[usb] Use non-zero language ID to retrieve strings

2017-07-03T12:38:55+00:00

We currently use a zero language ID to retrieve strings such as the ECM/NCM MAC address. This works on most hardware devices, but is known to fail on some software emulated CDC-NCM devices. Fix by using the first supported language ID, falling back to English (0x0409) if any error occurs when fetching the list of supported languages. This matches the behaviour of the Linux kernel. Signed-off-by: Michael Brown

[usb] Use correct length for memcpy()

2017-03-22T12:14:57+00:00

Signed-off-by: Michael Brown

[usb] Use correct length for memcpy()

2017-03-21T12:21:54+00:00

Signed-off-by: Michael Brown

[virtio] Remove queue size limit in legacy virtio

2017-01-22T13:22:19+00:00

Virtio 0.9 implementation was limited to the maximum virtqueue size of MAX_QUEUE_NUM and the virtio-net driver would fail to initialize on hosts exceeding this limit. This commit lifts the restriction by allocating the queue memory based on the actual queue size instead of using a fixed maximum. Note that virtio 1.0 still uses the MAX_QUEUE_NUM constant to cap the size (unfortunately this functionality is not available in virtio 0.9). Signed-off-by: Ladi Prosek Acked-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi Signed-off-by: Michael Brown

[virtio] Simplify virtqueue shutdown

2017-01-22T13:20:42+00:00

This commit introduces virtnet_free_virtqueues called on all virtqueue error and shutdown paths. vpm_find_vqs no longer cleans up after itself and instead expects virtnet_free_virtqueues to be always called to undo its effect. Signed-off-by: Ladi Prosek Acked-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi Signed-off-by: Michael Brown

[virtio] Cap queue size to MAX_QUEUE_NUM

2017-01-22T13:18:28+00:00

vpm_find_vqs incorrectly accepted the host provided queue size with no regard to iPXE's internal limitations. Virtio 1.0 makes it possible for the driver to override the queue size to reduce memory requirements and iPXE is a great use case for this feature. Also removing the extra vq->vring.num assignment which is already handled in vring_init. Signed-off-by: Ladi Prosek Acked-by: Michael S. Tsirkin Reviewed-by: Stefan Hajnoczi Signed-off-by: Michael Brown

[virtio] Fix virtio-pci logging

2016-06-20T13:23:53+00:00

iPXE debug logging doesn't support %u. This commit replaces it with %d in virtio-pci debug format strings. Signed-off-by: Ladi Prosek Reviewed-by: Michael S. Tsirkin Signed-off-by: Michael Brown

[pci] Support systems with multiple PCI root bridges

2016-06-09T08:36:28+00:00

Extend the 16-bit PCI bus:dev.fn address to a 32-bit seg:bus:dev.fn address, assuming a segment value of zero in contexts where multiple segments are unsupported by the underlying data structures (e.g. in the iBFT or BOFM tables). Signed-off-by: Michael Brown

[pci] Add support for PCI Enhanced Allocation

2016-05-20T15:51:56+00:00

Some embedded devices have immovable BARs, which are described via a PCI Enhanced Allocation capability. Signed-off-by: Michael Brown

[virtio] Add virtio 1.0 PCI support

2016-04-15T16:41:26+00:00

This commit adds support for driving virtio 1.0 PCI devices. In addition to various helpers, a number of vpm_ functions are introduced to be used instead of their legacy vp_ counterparts when accessing virtio 1.0 (aka modern) devices. Signed-off-by: Ladi Prosek Reviewed-by: Michael S. Tsirkin Modified-by: Michael Brown Signed-off-by: Michael Brown