summaryrefslogtreecommitdiff
path: root/include/net/tls.h
diff options
context:
space:
mode:
authorJakub Kicinski <jakub.kicinski@netronome.com>2019-06-04 01:17:04 +0300
committerDavid S. Miller <davem@davemloft.net>2019-06-05 00:33:50 +0300
commitf0aaa2c975617da78b80feebc87e74dba9ec1f53 (patch)
treecf4d41bb83de5c1c276f89b792ec6b5452206ae3 /include/net/tls.h
parent9cd81988cce195598e04fd8290fea873052bb7bd (diff)
downloadlinux-f0aaa2c975617da78b80feebc87e74dba9ec1f53.tar.xz
net/tls: reorganize struct tls_context
struct tls_context is slightly badly laid out. If we reorder things right we can save 16 bytes (320 -> 304) but also make all fast path data fit into two cache lines (one read only and one read/write, down from four cache lines). Signed-off-by: Jakub Kicinski <jakub.kicinski@netronome.com> Reviewed-by: Dirk van der Merwe <dirk.vandermerwe@netronome.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'include/net/tls.h')
-rw-r--r--include/net/tls.h26
1 files changed, 15 insertions, 11 deletions
diff --git a/include/net/tls.h b/include/net/tls.h
index 39ea62f0c1f6..a463a6074e5d 100644
--- a/include/net/tls.h
+++ b/include/net/tls.h
@@ -236,34 +236,32 @@ struct tls_prot_info {
};
struct tls_context {
+ /* read-only cache line */
struct tls_prot_info prot_info;
- union tls_crypto_context crypto_send;
- union tls_crypto_context crypto_recv;
+ u8 tx_conf:3;
+ u8 rx_conf:3;
- struct list_head list;
- struct net_device *netdev;
- refcount_t refcount;
+ int (*push_pending_record)(struct sock *sk, int flags);
+ void (*sk_write_space)(struct sock *sk);
void *priv_ctx_tx;
void *priv_ctx_rx;
- u8 tx_conf:3;
- u8 rx_conf:3;
+ struct net_device *netdev;
+ /* rw cache line */
struct cipher_context tx;
struct cipher_context rx;
struct scatterlist *partially_sent_record;
u16 partially_sent_offset;
- unsigned long flags;
bool in_tcp_sendpages;
bool pending_open_record_frags;
+ unsigned long flags;
- int (*push_pending_record)(struct sock *sk, int flags);
-
- void (*sk_write_space)(struct sock *sk);
+ /* cache cold stuff */
void (*sk_destruct)(struct sock *sk);
void (*sk_proto_close)(struct sock *sk, long timeout);
@@ -275,6 +273,12 @@ struct tls_context {
int __user *optlen);
int (*hash)(struct sock *sk);
void (*unhash)(struct sock *sk);
+
+ union tls_crypto_context crypto_send;
+ union tls_crypto_context crypto_recv;
+
+ struct list_head list;
+ refcount_t refcount;
};
enum tls_offload_ctx_dir {