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net: macsec: allow multiple macsec devices with offload 

Offload engine can setup several SecY. Each macsec interface shall have
its own mac address. It will filter a traffic by dest mac address.

Signed-off-by: Dmitry Bogdanov <dbogdanov@marvell.com>
Signed-off-by: Mark Starovoytov <mstarovoitov@marvell.com>
Signed-off-by: Igor Russkikh <irusskikh@marvell.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Dmitry Bogdanov 2020-03-25 15:52:35 +03:00 committed by David S. Miller
parent 182879f89b
commit a249f80506
1 changed files with 1 additions and 24 deletions
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25
drivers/net/macsec.c
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@ -2553,11 +2553,10 @@ static int macsec_upd_offload(struct sk_buff *skb, struct genl_info *info)
enum macsec_offload offload, prev_offload;
int (*func)(struct macsec_context *ctx);
struct nlattr **attrs = info->attrs;
struct net_device *dev, *loop_dev;
struct net_device *dev;
const struct macsec_ops *ops;
struct macsec_context ctx;
struct macsec_dev *macsec;
struct net *loop_net;
int ret;
if (!attrs[MACSEC_ATTR_IFINDEX])
@ -2585,28 +2584,6 @@ static int macsec_upd_offload(struct sk_buff *skb, struct genl_info *info)
!macsec_check_offload(offload, macsec))
return -EOPNOTSUPP;
if (offload == MACSEC_OFFLOAD_OFF)
goto skip_limitation;
/* Check the physical interface isn't offloading another interface
* first.
*/
for_each_net(loop_net) {
for_each_netdev(loop_net, loop_dev) {
struct macsec_dev *priv;
if (!netif_is_macsec(loop_dev))
continue;
priv = macsec_priv(loop_dev);
if (priv->real_dev == macsec->real_dev &&
priv->offload != MACSEC_OFFLOAD_OFF)
return -EBUSY;
}
}
skip_limitation:
/* Check if the net device is busy. */
if (netif_running(dev))
return -EBUSY;