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HiperSocket devices allow enabling and disabling so called VNIC Characteristics (VNICC) that influence how the underlying hardware handles packets. These VNICCs are: * Flooding VNICC: Flooding allows specifying if packets to unknown destination MAC addresses are received by the qeth device. * Multicast flooding VNICC: Multicast flooding allows specifying if packets to multicast MAC addresses are received by the qeth device. * Learning VNICC: If learning is enabled on a qeth device, the device learns the source MAC addresses of outgoing packets and incoming packets to those learned MAC addresses are received. * Takeover setvmac VNICC: If takeover setvmac is configured on a qeth device, the MAC address of this device can be configured on a different qeth device with the setvmac IPA command. * Takeover by learning VNICC: If takeover learning is enabled on a qeth device, the MAC address of this device can be learned (learning VNICC) on a different qeth device. * BridgePort invisible VNICC: If BridgePort invisible is enabled on a qeth device, (1) packets from this device are not sent to a BridgePort enabled qeth device and (2) packets coming from a BridgePort enabled qeth device are not received by this device. * Receive broadcast VNICC: Receive broadcast allows configuring if a qeth device receives packets with the broadcast destination MAC address. This patch adds support for the IPA commands that are required to enable and disable these VNIC characteristics on qeth devices. As a prerequisite, it also adds the query commands IPA command. The query commands IPA command allows requesting the supported commands for each characteristic from the underlying hardware. Additionally, this patch provides users with a sysfs user interface to enable/disable the VNICCs mentioned above. Signed-off-by: Hans Wippel <hwippel@linux.vnet.ibm.com> Reviewed-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: Julian Wiedmann <jwi@linux.vnet.ibm.com> Signed-off-by: David S. Miller <davem@davemloft.net> |
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README
Linux kernel ============ This file was moved to Documentation/admin-guide/README.rst Please notice that there are several guides for kernel developers and users. These guides can be rendered in a number of formats, like HTML and PDF. In order to build the documentation, use ``make htmldocs`` or ``make pdfdocs``. There are various text files in the Documentation/ subdirectory, several of them using the Restructured Text markup notation. See Documentation/00-INDEX for a list of what is contained in each file. Please read the Documentation/process/changes.rst file, as it contains the requirements for building and running the kernel, and information about the problems which may result by upgrading your kernel.