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mptcp: add scheduled in mptcp_subflow_context

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This patch adds a new member scheduled in struct mptcp_subflow_context,
which will be set in the MPTCP scheduler context when the scheduler
picks this subflow to send data.

Add a new helper mptcp_subflow_set_scheduled() to set this flag using
WRITE_ONCE().

Reviewed-by: Mat Martineau <martineau@kernel.org>
Signed-off-by: Geliang Tang <geliang.tang@suse.com>
Signed-off-by: Mat Martineau <martineau@kernel.org>
Link: https://lore.kernel.org/r/20230821-upstream-net-next-20230818-v1-6-0c860fb256a8@kernel.org
Signed-off-by: Jakub Kicinski <kuba@kernel.org>
This commit is contained in:
Geliang Tang 2023-08-21 15:25:17 -07:00 committed by Jakub Kicinski
parent 1730b2b2c5
commit fce68b0308
2 changed files with 9 additions and 0 deletions
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3
net/mptcp/protocol.h
View File

@ -491,6 +491,7 @@ struct mptcp_subflow_context {
is_mptfo : 1, /* subflow is doing TFO */
__unused : 9;
enum mptcp_data_avail data_avail;
bool scheduled;
u32 remote_nonce;
u64 thmac;
u32 local_nonce;
@ -663,6 +664,8 @@ void mptcp_unregister_scheduler(struct mptcp_sched_ops *sched);
int mptcp_init_sched(struct mptcp_sock *msk,
struct mptcp_sched_ops *sched);
void mptcp_release_sched(struct mptcp_sock *msk);
void mptcp_subflow_set_scheduled(struct mptcp_subflow_context *subflow,
bool scheduled);
static inline bool __tcp_can_send(const struct sock *ssk)
{

6
net/mptcp/sched.c
View File

@ -87,3 +87,9 @@ void mptcp_release_sched(struct mptcp_sock *msk)
bpf_module_put(sched, sched->owner);
}
void mptcp_subflow_set_scheduled(struct mptcp_subflow_context *subflow,
bool scheduled)
{
WRITE_ONCE(subflow->scheduled, scheduled);
}