diff options
| author | Mat Martineau <mathew.j.martineau@linux.intel.com> | 2022-04-27 15:49:58 -0700 |
|---|---|---|
| committer | Jakub Kicinski <kuba@kernel.org> | 2022-04-29 17:25:13 -0700 |
| commit | d85a8fde71e245981180698a5a662598682b7524 (patch) | |
| tree | 487c9c907eb5a92c8c332c97459822c71acd583e /net/mptcp | |
| parent | 9273b9d5799598d35f7a2a2df61b8e29102aeac8 (diff) | |
mptcp: Add a member to mptcp_pm_data to track kernel vs userspace mode
When adding support for netlink path management commands, the kernel
needs to know whether paths are being controlled by the in-kernel path
manager or a userspace PM.
Acked-by: Paolo Abeni <pabeni@redhat.com>
Signed-off-by: Mat Martineau <mathew.j.martineau@linux.intel.com>
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
Diffstat (limited to 'net/mptcp')
| -rw-r--r-- | net/mptcp/pm.c | 4 | ||||
| -rw-r--r-- | net/mptcp/protocol.h | 9 |
2 files changed, 13 insertions, 0 deletions
diff --git a/net/mptcp/pm.c b/net/mptcp/pm.c index 4de90e618be3..f9f1bf4be95e 100644 --- a/net/mptcp/pm.c +++ b/net/mptcp/pm.c @@ -424,6 +424,10 @@ void mptcp_pm_data_reset(struct mptcp_sock *msk) pm->subflows = 0; pm->rm_list_tx.nr = 0; pm->rm_list_rx.nr = 0; + WRITE_ONCE(pm->pm_type, MPTCP_PM_TYPE_KERNEL); + /* pm->work_pending must be only be set to 'true' when + * pm->pm_type is set to MPTCP_PM_TYPE_KERNEL + */ WRITE_ONCE(pm->work_pending, (!!mptcp_pm_get_local_addr_max(msk) && subflows_allowed) || !!mptcp_pm_get_add_addr_signal_max(msk)); diff --git a/net/mptcp/protocol.h b/net/mptcp/protocol.h index 0316605de559..f65395f04f81 100644 --- a/net/mptcp/protocol.h +++ b/net/mptcp/protocol.h @@ -184,6 +184,14 @@ enum mptcp_pm_status { */ }; +enum mptcp_pm_type { + MPTCP_PM_TYPE_KERNEL = 0, + MPTCP_PM_TYPE_USERSPACE, + + __MPTCP_PM_TYPE_NR, + __MPTCP_PM_TYPE_MAX = __MPTCP_PM_TYPE_NR - 1, +}; + /* Status bits below MPTCP_PM_ALREADY_ESTABLISHED need pm worker actions */ #define MPTCP_PM_WORK_MASK ((1 << MPTCP_PM_ALREADY_ESTABLISHED) - 1) @@ -212,6 +220,7 @@ struct mptcp_pm_data { u8 add_addr_signaled; u8 add_addr_accepted; u8 local_addr_used; + u8 pm_type; u8 subflows; u8 status; DECLARE_BITMAP(id_avail_bitmap, MPTCP_PM_MAX_ADDR_ID + 1); |