diff options
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c | 85 |
1 files changed, 84 insertions, 1 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c index 7a0414f379be..854b1717a70d 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c +++ b/drivers/net/ethernet/chelsio/cxgb4/cxgb4_main.c @@ -66,6 +66,9 @@ #include <linux/crash_dump.h> #include <net/udp_tunnel.h> #include <net/xfrm.h> +#if defined(CONFIG_CHELSIO_TLS_DEVICE) +#include <net/tls.h> +#endif #include "cxgb4.h" #include "cxgb4_filter.h" @@ -6064,6 +6067,79 @@ static int cxgb4_iov_configure(struct pci_dev *pdev, int num_vfs) } #endif /* CONFIG_PCI_IOV */ +#if defined(CONFIG_CHELSIO_TLS_DEVICE) + +static int cxgb4_ktls_dev_add(struct net_device *netdev, struct sock *sk, + enum tls_offload_ctx_dir direction, + struct tls_crypto_info *crypto_info, + u32 tcp_sn) +{ + struct adapter *adap = netdev2adap(netdev); + int ret = 0; + + mutex_lock(&uld_mutex); + if (!adap->uld[CXGB4_ULD_CRYPTO].handle) { + dev_err(adap->pdev_dev, "chcr driver is not loaded\n"); + ret = -EOPNOTSUPP; + goto out_unlock; + } + + if (!adap->uld[CXGB4_ULD_CRYPTO].tlsdev_ops) { + dev_err(adap->pdev_dev, + "chcr driver has no registered tlsdev_ops()\n"); + ret = -EOPNOTSUPP; + goto out_unlock; + } + + ret = cxgb4_set_ktls_feature(adap, FW_PARAMS_PARAM_DEV_KTLS_HW_ENABLE); + if (ret) + goto out_unlock; + + ret = adap->uld[CXGB4_ULD_CRYPTO].tlsdev_ops->tls_dev_add(netdev, sk, + direction, + crypto_info, + tcp_sn); + /* if there is a failure, clear the refcount */ + if (ret) + cxgb4_set_ktls_feature(adap, + FW_PARAMS_PARAM_DEV_KTLS_HW_DISABLE); +out_unlock: + mutex_unlock(&uld_mutex); + return ret; +} + +static void cxgb4_ktls_dev_del(struct net_device *netdev, + struct tls_context *tls_ctx, + enum tls_offload_ctx_dir direction) +{ + struct adapter *adap = netdev2adap(netdev); + + mutex_lock(&uld_mutex); + if (!adap->uld[CXGB4_ULD_CRYPTO].handle) { + dev_err(adap->pdev_dev, "chcr driver is not loaded\n"); + goto out_unlock; + } + + if (!adap->uld[CXGB4_ULD_CRYPTO].tlsdev_ops) { + dev_err(adap->pdev_dev, + "chcr driver has no registered tlsdev_ops\n"); + goto out_unlock; + } + + adap->uld[CXGB4_ULD_CRYPTO].tlsdev_ops->tls_dev_del(netdev, tls_ctx, + direction); + cxgb4_set_ktls_feature(adap, FW_PARAMS_PARAM_DEV_KTLS_HW_DISABLE); + +out_unlock: + mutex_unlock(&uld_mutex); +} + +static const struct tlsdev_ops cxgb4_ktls_ops = { + .tls_dev_add = cxgb4_ktls_dev_add, + .tls_dev_del = cxgb4_ktls_dev_del, +}; +#endif /* CONFIG_CHELSIO_TLS_DEVICE */ + static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) { struct net_device *netdev; @@ -6313,7 +6389,14 @@ static int init_one(struct pci_dev *pdev, const struct pci_device_id *ent) netdev->hw_features |= NETIF_F_HIGHDMA; netdev->features |= netdev->hw_features; netdev->vlan_features = netdev->features & VLAN_FEAT; - +#if defined(CONFIG_CHELSIO_TLS_DEVICE) + if (pi->adapter->params.crypto & FW_CAPS_CONFIG_TLS_HW) { + netdev->hw_features |= NETIF_F_HW_TLS_TX; + netdev->tlsdev_ops = &cxgb4_ktls_ops; + /* initialize the refcount */ + refcount_set(&pi->adapter->chcr_ktls.ktls_refcount, 0); + } +#endif netdev->priv_flags |= IFF_UNICAST_FLT; /* MTU range: 81 - 9600 */ |