diff options
Diffstat (limited to 'drivers/crypto/chelsio/chcr_ktls.c')
| -rw-r--r-- | drivers/crypto/chelsio/chcr_ktls.c | 59 |
1 files changed, 15 insertions, 44 deletions
diff --git a/drivers/crypto/chelsio/chcr_ktls.c b/drivers/crypto/chelsio/chcr_ktls.c index 43d9e2420110..f55b87152166 100644 --- a/drivers/crypto/chelsio/chcr_ktls.c +++ b/drivers/crypto/chelsio/chcr_ktls.c @@ -373,9 +373,9 @@ static int chcr_ktls_mark_tcb_close(struct chcr_ktls_info *tx_info) * @tls_cts - tls context. * @direction - TX/RX crypto direction */ -static void chcr_ktls_dev_del(struct net_device *netdev, - struct tls_context *tls_ctx, - enum tls_offload_ctx_dir direction) +void chcr_ktls_dev_del(struct net_device *netdev, + struct tls_context *tls_ctx, + enum tls_offload_ctx_dir direction) { struct chcr_ktls_ofld_ctx_tx *tx_ctx = chcr_get_ktls_tx_context(tls_ctx); @@ -411,6 +411,8 @@ static void chcr_ktls_dev_del(struct net_device *netdev, atomic64_inc(&tx_info->adap->chcr_stats.ktls_tx_connection_close); kvfree(tx_info); tx_ctx->chcr_info = NULL; + /* release module refcount */ + module_put(THIS_MODULE); } /* @@ -422,10 +424,10 @@ static void chcr_ktls_dev_del(struct net_device *netdev, * @direction - TX/RX crypto direction * return: SUCCESS/FAILURE. */ -static int chcr_ktls_dev_add(struct net_device *netdev, struct sock *sk, - enum tls_offload_ctx_dir direction, - struct tls_crypto_info *crypto_info, - u32 start_offload_tcp_sn) +int chcr_ktls_dev_add(struct net_device *netdev, struct sock *sk, + enum tls_offload_ctx_dir direction, + struct tls_crypto_info *crypto_info, + u32 start_offload_tcp_sn) { struct tls_context *tls_ctx = tls_get_ctx(sk); struct chcr_ktls_ofld_ctx_tx *tx_ctx; @@ -528,6 +530,12 @@ static int chcr_ktls_dev_add(struct net_device *netdev, struct sock *sk, if (ret) goto out2; + /* Driver shouldn't be removed until any single connection exists */ + if (!try_module_get(THIS_MODULE)) { + ret = -EINVAL; + goto out2; + } + atomic64_inc(&adap->chcr_stats.ktls_tx_connection_open); return 0; out2: @@ -537,43 +545,6 @@ out: return ret; } -static const struct tlsdev_ops chcr_ktls_ops = { - .tls_dev_add = chcr_ktls_dev_add, - .tls_dev_del = chcr_ktls_dev_del, -}; - -/* - * chcr_enable_ktls: add NETIF_F_HW_TLS_TX flag in all the ports. - */ -void chcr_enable_ktls(struct adapter *adap) -{ - struct net_device *netdev; - int i; - - for_each_port(adap, i) { - netdev = adap->port[i]; - netdev->features |= NETIF_F_HW_TLS_TX; - netdev->hw_features |= NETIF_F_HW_TLS_TX; - netdev->tlsdev_ops = &chcr_ktls_ops; - } -} - -/* - * chcr_disable_ktls: remove NETIF_F_HW_TLS_TX flag from all the ports. - */ -void chcr_disable_ktls(struct adapter *adap) -{ - struct net_device *netdev; - int i; - - for_each_port(adap, i) { - netdev = adap->port[i]; - netdev->features &= ~NETIF_F_HW_TLS_TX; - netdev->hw_features &= ~NETIF_F_HW_TLS_TX; - netdev->tlsdev_ops = NULL; - } -} - /* * chcr_init_tcb_fields: Initialize tcb fields to handle TCP seq number * handling. |