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| author | Jeremy Kerr <jk@codeconstruct.com.au> | 2025-02-21 08:56:58 +0800 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2025-02-21 16:45:21 -0800 |
| commit | 0791c0327a6e4e7691d6fc5ad334c215de04dcc9 (patch) | |
| tree | cb4145a2ca1281102180d2a974f7502ec05cd053 /drivers/fpga/fpga-region.c | |
| parent | dcc35baae732b9079b2c6595cfd86da02b34a4e6 (diff) | |
net: mctp: Add MCTP USB transport driver
Add an implementation for DMTF DSP0283, which defines a MCTP-over-USB
transport. As per that spec, we're restricted to full speed mode,
requiring 512-byte transfers.
Each MCTP-over-USB interface is a peer-to-peer link to a single MCTP
endpoint, so no physical addressing is required (of course, that MCTP
endpoint may then bridge to further MCTP endpoints). Consequently,
interfaces will report with no lladdr data:
# mctp link
dev lo index 1 address 00:00:00:00:00:00 net 1 mtu 65536 up
dev mctpusb0 index 6 address none net 1 mtu 68 up
This is a simple initial implementation, with single rx & tx urbs, and
no multi-packet tx transfers - although we do accept multi-packet rx
from the device.
Includes suggested fixes from Santosh Puranik <spuranik@nvidia.com>.
Signed-off-by: Jeremy Kerr <jk@codeconstruct.com.au>
Cc: Santosh Puranik <spuranik@nvidia.com>
Link: https://patch.msgid.link/20250221-dev-mctp-usb-v3-2-3353030fe9cc@codeconstruct.com.au
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/fpga/fpga-region.c')
0 files changed, 0 insertions, 0 deletions