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// SPDX-License-Identifier: GPL-2.0-only
/* Atlantic Network Driver
* Copyright (C) 2020 Marvell International Ltd.
*/
#include "aq_macsec.h"
#include "aq_nic.h"
#include <linux/rtnetlink.h>
static int aq_mdo_dev_open(struct macsec_context *ctx)
{
return 0;
}
static int aq_mdo_dev_stop(struct macsec_context *ctx)
{
return 0;
}
static int aq_mdo_add_secy(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_upd_secy(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_del_secy(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_add_txsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_upd_txsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_del_txsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_add_rxsc(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_upd_rxsc(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_del_rxsc(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_add_rxsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_upd_rxsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static int aq_mdo_del_rxsa(struct macsec_context *ctx)
{
return -EOPNOTSUPP;
}
static void aq_check_txsa_expiration(struct aq_nic_s *nic)
{
}
const struct macsec_ops aq_macsec_ops = {
.mdo_dev_open = aq_mdo_dev_open,
.mdo_dev_stop = aq_mdo_dev_stop,
.mdo_add_secy = aq_mdo_add_secy,
.mdo_upd_secy = aq_mdo_upd_secy,
.mdo_del_secy = aq_mdo_del_secy,
.mdo_add_rxsc = aq_mdo_add_rxsc,
.mdo_upd_rxsc = aq_mdo_upd_rxsc,
.mdo_del_rxsc = aq_mdo_del_rxsc,
.mdo_add_rxsa = aq_mdo_add_rxsa,
.mdo_upd_rxsa = aq_mdo_upd_rxsa,
.mdo_del_rxsa = aq_mdo_del_rxsa,
.mdo_add_txsa = aq_mdo_add_txsa,
.mdo_upd_txsa = aq_mdo_upd_txsa,
.mdo_del_txsa = aq_mdo_del_txsa,
};
int aq_macsec_init(struct aq_nic_s *nic)
{
struct aq_macsec_cfg *cfg;
u32 caps_lo;
if (!nic->aq_fw_ops->get_link_capabilities)
return 0;
caps_lo = nic->aq_fw_ops->get_link_capabilities(nic->aq_hw);
if (!(caps_lo & BIT(CAPS_LO_MACSEC)))
return 0;
nic->macsec_cfg = kzalloc(sizeof(*cfg), GFP_KERNEL);
if (!nic->macsec_cfg)
return -ENOMEM;
nic->ndev->features |= NETIF_F_HW_MACSEC;
nic->ndev->macsec_ops = &aq_macsec_ops;
return 0;
}
void aq_macsec_free(struct aq_nic_s *nic)
{
kfree(nic->macsec_cfg);
nic->macsec_cfg = NULL;
}
int aq_macsec_enable(struct aq_nic_s *nic)
{
struct macsec_msg_fw_response resp = { 0 };
struct macsec_msg_fw_request msg = { 0 };
struct aq_hw_s *hw = nic->aq_hw;
int ret = 0;
if (!nic->macsec_cfg)
return 0;
rtnl_lock();
if (nic->aq_fw_ops->send_macsec_req) {
struct macsec_cfg_request cfg = { 0 };
cfg.enabled = 1;
cfg.egress_threshold = 0xffffffff;
cfg.ingress_threshold = 0xffffffff;
cfg.interrupts_enabled = 1;
msg.msg_type = macsec_cfg_msg;
msg.cfg = cfg;
ret = nic->aq_fw_ops->send_macsec_req(hw, &msg, &resp);
if (ret)
goto unlock;
}
unlock:
rtnl_unlock();
return ret;
}
void aq_macsec_work(struct aq_nic_s *nic)
{
if (!nic->macsec_cfg)
return;
if (!netif_carrier_ok(nic->ndev))
return;
rtnl_lock();
aq_check_txsa_expiration(nic);
rtnl_unlock();
}
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