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netdev: disable power save if required

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Disable power save if the wiphy indicates its needed. Do this
before issuing GET_LINK so the netdev doesn't signal its up until
power save is disabled.
This commit is contained in:
James Prestwood 2023-06-19 11:09:21 -07:00 committed by Denis Kenzior
parent b7872de90a
commit 29edb1626d
1 changed files with 43 additions and 0 deletions
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43
src/netdev.c
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@ -132,6 +132,7 @@ struct netdev {
uint32_t mac_change_cmd_id;
uint32_t get_oci_cmd_id;
uint32_t get_link_cmd_id;
uint32_t power_save_cmd_id;
enum netdev_result result;
uint16_t last_code; /* reason or status, depending on result */
struct l_timeout *neighbor_report_timeout;
@ -6240,6 +6241,42 @@ static void netdev_get_link(struct netdev *netdev)
l_free(rtmmsg);
}
static void netdev_disable_ps_cb(struct l_genl_msg *msg, void *user_data)
{
struct netdev *netdev = user_data;
int err = l_genl_msg_get_error(msg);
netdev->power_save_cmd_id = 0;
/* Can't do anything about it but inform the user */
if (err < 0)
l_error("Failed to disable power save for ifindex %u (%s: %d)",
netdev->index, strerror(-err), err);
else
l_debug("Disabled power save for ifindex %u", netdev->index);
netdev_get_link(netdev);
}
static bool netdev_disable_power_save(struct netdev *netdev)
{
struct l_genl_msg *msg = l_genl_msg_new(NL80211_CMD_SET_POWER_SAVE);
uint32_t disabled = NL80211_PS_DISABLED;
l_genl_msg_append_attr(msg, NL80211_ATTR_IFINDEX, 4, &netdev->index);
l_genl_msg_append_attr(msg, NL80211_ATTR_PS_STATE, 4, &disabled);
netdev->power_save_cmd_id = l_genl_family_send(nl80211, msg,
netdev_disable_ps_cb,
netdev, NULL);
if (!netdev->power_save_cmd_id) {
l_error("Failed to send SET_POWER_SAVE (-EIO)");
return false;
}
return true;
}
struct netdev *netdev_create_from_genl(struct l_genl_msg *msg,
const uint8_t *set_mac)
{
@ -6311,6 +6348,12 @@ struct netdev *netdev_create_from_genl(struct l_genl_msg *msg,
netdev_setup_interface(netdev);
if (wiphy_power_save_disabled(wiphy)) {
/* Wait to issue GET_LINK until PS is disabled */
if (netdev_disable_power_save(netdev))
return netdev;
}
netdev_get_link(netdev);
return netdev;