@@ -97,14 +97,15 @@ struct mptcp_out_options {
};
#define MPTCP_SCHED_NAME_MAX 16
+#define MPTCP_SUBFLOWS_MAX 8
struct mptcp_sched_data {
- struct sock *sock;
- bool call_again;
+ bool reinject;
+ struct mptcp_subflow_context *contexts[MPTCP_SUBFLOWS_MAX];
};
struct mptcp_sched_ops {
- void (*get_subflow)(const struct mptcp_sock *msk, bool reinject,
+ void (*get_subflow)(const struct mptcp_sock *msk,
struct mptcp_sched_data *data);
char name[MPTCP_SCHED_NAME_MAX];
@@ -469,6 +469,7 @@ struct mptcp_subflow_context {
valid_csum_seen : 1; /* at least one csum validated */
enum mptcp_data_avail data_avail;
bool mp_fail_response_expect;
+ bool scheduled;
u32 remote_nonce;
u64 thmac;
u32 local_nonce;
@@ -231,10 +231,15 @@ extern __u32 tcp_slow_start(struct tcp_sock *tp, __u32 acked) __ksym;
extern void tcp_cong_avoid_ai(struct tcp_sock *tp, __u32 w, __u32 acked) __ksym;
#define MPTCP_SCHED_NAME_MAX 16
+#define MPTCP_SUBFLOWS_MAX 8
+
+struct mptcp_subflow_context {
+ struct sock *tcp_sock; /* tcp sk backpointer */
+} __attribute__((preserve_access_index));
struct mptcp_sched_data {
- struct sock *sock;
- bool call_again;
+ bool reinject;
+ struct mptcp_subflow_context *contexts[MPTCP_SUBFLOWS_MAX];
};
struct mptcp_sched_ops {
@@ -243,7 +248,7 @@ struct mptcp_sched_ops {
void (*init)(const struct mptcp_sock *msk);
void (*release)(const struct mptcp_sock *msk);
- void (*get_subflow)(const struct mptcp_sock *msk, bool reinject,
+ void (*get_subflow)(const struct mptcp_sock *msk,
struct mptcp_sched_data *data);
void *owner;
};
Use new BPF API. Please update the commit log: ''' This patch defines struct mptcp_sched_ops, which has three struct members, name, owner and list, and three function pointers, init(), release() and get_subflow(). The scheduler function get_subflow() has a struct mptcp_sched_data parameter, which contains a reinject flag and a mptcp_subflow_context array. Add the scheduler registering, unregistering and finding functions to add, delete and find a packet scheduler on the global list mptcp_sched_list. Add 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. ''' Signed-off-by: Geliang Tang <geliang.tang@suse.com> --- include/net/mptcp.h | 7 ++++--- net/mptcp/protocol.h | 1 + tools/testing/selftests/bpf/bpf_tcp_helpers.h | 11 ++++++++--- 3 files changed, 13 insertions(+), 6 deletions(-)