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net/sfc: support main MAC address change

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Signed-off-by: Ivan Malov <ivan.malov@oktetlabs.ru>
Signed-off-by: Andrew Rybchenko <arybchenko@solarflare.com>
Reviewed-by: Andrew Lee <alee@solarflare.com>
Reviewed-by: Robert Stonehouse <rstonehouse@solarflare.com>
This commit is contained in:
Ivan Malov 2016-12-15 12:51:02 +00:00 committed by Ferruh Yigit
parent f3de384044
commit c100fd464b
1 changed files with 53 additions and 0 deletions
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53
drivers/net/sfc/sfc_ethdev.c
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@ -705,6 +705,58 @@ fail_inval:
SFC_ASSERT(rc > 0);
return -rc;
}
static void
sfc_mac_addr_set(struct rte_eth_dev *dev, struct ether_addr *mac_addr)
{
struct sfc_adapter *sa = dev->data->dev_private;
const efx_nic_cfg_t *encp = efx_nic_cfg_get(sa->nic);
int rc;
sfc_adapter_lock(sa);
if (sa->state != SFC_ADAPTER_STARTED) {
sfc_info(sa, "the port is not started");
sfc_info(sa, "the new MAC address will be set on port start");
goto unlock;
}
if (encp->enc_allow_set_mac_with_installed_filters) {
rc = efx_mac_addr_set(sa->nic, mac_addr->addr_bytes);
if (rc != 0) {
sfc_err(sa, "cannot set MAC address (rc = %u)", rc);
goto unlock;
}
/*
* Changing the MAC address by means of MCDI request
* has no effect on received traffic, therefore
* we also need to update unicast filters
*/
rc = sfc_set_rx_mode(sa);
if (rc != 0)
sfc_err(sa, "cannot set filter (rc = %u)", rc);
} else {
sfc_warn(sa, "cannot set MAC address with filters installed");
sfc_warn(sa, "adapter will be restarted to pick the new MAC");
sfc_warn(sa, "(some traffic may be dropped)");
/*
* Since setting MAC address with filters installed is not
* allowed on the adapter, one needs to simply restart adapter
* so that the new MAC address will be taken from an outer
* storage and set flawlessly by means of sfc_start() call
*/
sfc_stop(sa);
rc = sfc_start(sa);
if (rc != 0)
sfc_err(sa, "cannot restart adapter (rc = %u)", rc);
}
unlock:
sfc_adapter_unlock(sa);
}
static const struct eth_dev_ops sfc_eth_dev_ops = {
.dev_configure = sfc_dev_configure,
@ -729,6 +781,7 @@ static const struct eth_dev_ops sfc_eth_dev_ops = {
.tx_queue_release = sfc_tx_queue_release,
.flow_ctrl_get = sfc_flow_ctrl_get,
.flow_ctrl_set = sfc_flow_ctrl_set,
.mac_addr_set = sfc_mac_addr_set,
};
static int