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net/tls: add tracing for device/offload events

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Add tracing of device-related interaction to aid performance
analysis, especially around resync:

 tls:tls_device_offload_set
 tls:tls_device_rx_resync_send
 tls:tls_device_rx_resync_nh_schedule
 tls:tls_device_rx_resync_nh_delay
 tls:tls_device_tx_resync_req
 tls:tls_device_tx_resync_send

Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jakub Kicinski
2019-10-04 16:19:22 -07:00
committed by David S. Miller
parent 6f4c930e02
commit 8538d29cea
6 changed files with 213 additions and 11 deletions
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8
include/net/tls.h
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@@ -594,13 +594,6 @@ tls_offload_rx_resync_set_type(struct sock *sk, enum tls_offload_sync_type type)
tls_offload_ctx_rx(tls_ctx)->resync_type = type;
}
static inline void tls_offload_tx_resync_request(struct sock *sk)
{
struct tls_context *tls_ctx = tls_get_ctx(sk);
WARN_ON(test_and_set_bit(TLS_TX_SYNC_SCHED, &tls_ctx->flags));
}
/* Driver's seq tracking has to be disabled until resync succeeded */
static inline bool tls_offload_tx_resync_pending(struct sock *sk)
{
@@ -634,6 +627,7 @@ void tls_device_free_resources_tx(struct sock *sk);
int tls_set_device_offload_rx(struct sock *sk, struct tls_context *ctx);
void tls_device_offload_cleanup_rx(struct sock *sk);
void tls_device_rx_resync_new_rec(struct sock *sk, u32 rcd_len, u32 seq);
void tls_offload_tx_resync_request(struct sock *sk, u32 got_seq, u32 exp_seq);
int tls_device_decrypted(struct sock *sk, struct sk_buff *skb);
#else
static inline void tls_device_init(void) {}