openslx-ng/ipxe.git/src/net/infiniband/xsigo.c, branch openslx

[netdevice] Allocate private data for each network upper-layer driver

2023-09-13T19:23:46+00:00

Allow network upper-layer drivers (such as LLDP, which attaches to each network device in order to provide a corresponding LLDP settings block) to specify a size for private data, which will be allocated as part of the network device structure (as with the existing private data allocated for the underlying device driver). This will allow network upper-layer drivers to be simplified by omitting memory allocation and freeing code. If the upper-layer driver requires a reference counter (e.g. for interface initialisation), then it may use the network device's existing reference counter, since this is now the reference counter for the containing block of memory. Signed-off-by: Michael Brown

[xsigo] Avoid storing unused uninitialised fields in gateway address

2022-02-16T13:29:53+00:00

As reported by Coverity, xsmp_rx_xve_modify() currently passes a partially initialised struct ib_address_vector to xve_update_tca() and thence to eoib_set_gateway(), which uses memcpy() to store the whole structure including the (unused and unneeded) uninitialised fields. Silence the Coverity warning by zeroing the whole structure. Signed-off-by: Michael Brown

[netdevice] Limit MTU by hardware maximum frame length

2017-01-25T14:55:09+00:00

Separate out the concept of "hardware maximum supported frame length" and "configured link MTU", and limit the latter according to the former. In networks where the DHCP-supplied link MTU is inconsistent with the hardware or driver capabilities (e.g. a network using jumbo frames), this will result in iPXE advertising a TCP MSS consistent with a size that can actually be received. Note that the term "MTU" is typically used to refer to the maximum length excluding the link-layer headers; we adopt this usage. Signed-off-by: Michael Brown

[xsigo] Add support for Xsigo virtual Ethernet (XVE) EoIB devices

2016-03-09T08:46:24+00:00

Add support for EoIB devices as implemented by Xsigo. Based on the public (but out-of-tree) Linux kernel drivers at https://oss.oracle.com/git/?p=linux-uek.git;a=log;h=v4.1.12-32.2.1 Signed-off-by: Michael Brown