diff options
| author | Khang Nguyen <khangng@os.amperecomputing.com> | 2024-11-05 14:19:15 +0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2024-11-09 09:04:54 -0800 |
| commit | 580db513b4a9d52f306580015a1872eea0a0894e (patch) | |
| tree | 2d3f737e30bc78418500e95da8bba0ca7204b780 /drivers/net/mctp/mctp-serial.c | |
| parent | 4861333b42178fa3d8fd1bb4e2cfb2fedc968dba (diff) | |
net: mctp: Expose transport binding identifier via IFLA attribute
MCTP control protocol implementations are transport binding dependent.
Endpoint discovery is mandatory based on transport binding.
Message timing requirements are specified in each respective transport
binding specification.
However, we currently have no means to get this information from MCTP
links.
Add a IFLA_MCTP_PHYS_BINDING netlink link attribute, which represents
the transport type using the DMTF DSP0239-defined type numbers, returned
as part of RTM_GETLINK data.
We get an IFLA_MCTP_PHYS_BINDING attribute for each MCTP link, for
example:
- 0x00 (unspec) for loopback interface;
- 0x01 (SMBus/I2C) for mctpi2c%d interfaces; and
- 0x05 (serial) for mctpserial%d interfaces.
Signed-off-by: Khang Nguyen <khangng@os.amperecomputing.com>
Reviewed-by: Matt Johnston <matt@codeconstruct.com.au>
Link: https://patch.msgid.link/20241105071915.821871-1-khangng@os.amperecomputing.com
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'drivers/net/mctp/mctp-serial.c')
| -rw-r--r-- | drivers/net/mctp/mctp-serial.c | 5 |
1 files changed, 3 insertions, 2 deletions
diff --git a/drivers/net/mctp/mctp-serial.c b/drivers/net/mctp/mctp-serial.c index e63720ec3238..26c9a33fd636 100644 --- a/drivers/net/mctp/mctp-serial.c +++ b/drivers/net/mctp/mctp-serial.c @@ -23,6 +23,7 @@ #include <linux/mctp.h> #include <net/mctp.h> +#include <net/mctpdevice.h> #include <net/pkt_sched.h> #define MCTP_SERIAL_MTU 68 /* base mtu (64) + mctp header */ @@ -470,7 +471,7 @@ static int mctp_serial_open(struct tty_struct *tty) spin_lock_init(&dev->lock); INIT_WORK(&dev->tx_work, mctp_serial_tx_work); - rc = register_netdev(ndev); + rc = mctp_register_netdev(ndev, NULL, MCTP_PHYS_BINDING_SERIAL); if (rc) goto free_netdev; @@ -492,7 +493,7 @@ static void mctp_serial_close(struct tty_struct *tty) struct mctp_serial *dev = tty->disc_data; int idx = dev->idx; - unregister_netdev(dev->netdev); + mctp_unregister_netdev(dev->netdev); ida_free(&mctp_serial_ida, idx); } |