net/ncsi: Resource management

2015-11-18T04:14:17+00:00

According to NCSI spec (DSP0222), the NCSI enabled interface can connected to multiple packages simultaneously, up to 8 packages. Each package includes multiple channels, up to 32 channels. At one moment, one channel is enabled to provide service to the NCSI enabled interface. Besides, each channel comprises capabilities, modes, filters, version and statistics etc. All of them are resources to NCSI protocol stack. At the meanwhile, the NCSI device seen from NIC driver is represented by "struct ncsi_dev", which is expected to populated and started by NIC driver before the NIC can work. All possible NCSI packages and NCSI channels connected to the NCSI interface are tracked from the NCSI device. Also, the NCSI device recognizes active channel that is currently providing service to NCSI enabled interface. Also, the NCSI requests (pairs of command and response) are embedded in NCSI device. This introduces the data structs to represents the NCSI resources mentioned as above. Also, functions used by NCSI stack internally are implemented. Besides, this introduces kernel config option CONFIG_NET_NCSI to enable NCSI stack. Signed-off-by: Gavin Shan

BMC/Intel-BMC/linux.git/include/uapi/linux/ncsi.h, branch dev-4.3

net/ncsi: Resource management