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ieee820154: add max frame retries setting support 

This patch add support for setting mac frame retries setting via
nl802154 framework.

Signed-off-by: Alexander Aring <alex.aring@gmail.com>
Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
This commit is contained in:
Alexander Aring 2014-11-12 03:37:03 +01:00 committed by Marcel Holtmann
parent 17561bfe6f
commit 17a3a46bfb
4 changed files with 60 additions and 0 deletions
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3
include/net/cfg802154.h
View File

@ -48,6 +48,9 @@ struct cfg802154_ops {
int (*set_max_csma_backoffs)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
u8 max_csma_backoffs);
int (*set_max_frame_retries)(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
s8 max_frame_retries);
};
struct wpan_phy {

32
net/ieee802154/nl802154.c
View File

@ -667,6 +667,30 @@ nl802154_set_max_csma_backoffs(struct sk_buff *skb, struct genl_info *info)
return rdev_set_max_csma_backoffs(rdev, wpan_dev, max_csma_backoffs);
}
static int
nl802154_set_max_frame_retries(struct sk_buff *skb, struct genl_info *info)
{
struct cfg802154_registered_device *rdev = info->user_ptr[0];
struct net_device *dev = info->user_ptr[1];
struct wpan_dev *wpan_dev = dev->ieee802154_ptr;
s8 max_frame_retries;
if (netif_running(dev))
return -EBUSY;
if (!info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES])
return -EINVAL;
max_frame_retries = nla_get_s8(
info->attrs[NL802154_ATTR_MAX_FRAME_RETRIES]);
/* check 802.15.4 constraints */
if (max_frame_retries < -1 || max_frame_retries > 7)
return -EINVAL;
return rdev_set_max_frame_retries(rdev, wpan_dev, max_frame_retries);
}
#define NL802154_FLAG_NEED_WPAN_PHY 0x01
#define NL802154_FLAG_NEED_NETDEV 0x02
#define NL802154_FLAG_NEED_RTNL 0x04
@ -817,6 +841,14 @@ static const struct genl_ops nl802154_ops[] = {
.internal_flags = NL802154_FLAG_NEED_NETDEV |
NL802154_FLAG_NEED_RTNL,
},
{
.cmd = NL802154_CMD_SET_MAX_FRAME_RETRIES,
.doit = nl802154_set_max_frame_retries,
.policy = nl802154_policy,
.flags = GENL_ADMIN_PERM,
.internal_flags = NL802154_FLAG_NEED_NETDEV |
NL802154_FLAG_NEED_RTNL,
},
};
/* initialisation/exit functions */

9
net/ieee802154/rdev-ops.h
View File

@ -59,4 +59,13 @@ rdev_set_max_csma_backoffs(struct cfg802154_registered_device *rdev,
max_csma_backoffs);
}
static inline int
rdev_set_max_frame_retries(struct cfg802154_registered_device *rdev,
struct wpan_dev *wpan_dev,
const s8 max_frame_retries)
{
return rdev->ops->set_max_frame_retries(&rdev->wpan_phy, wpan_dev,
max_frame_retries);
}
#endif /* __CFG802154_RDEV_OPS */

16
net/mac802154/cfg.c
View File

@ -140,6 +140,21 @@ static int ieee802154_set_max_csma_backoffs(struct wpan_phy *wpan_phy,
return 0;
}
static int ieee802154_set_max_frame_retries(struct wpan_phy *wpan_phy,
struct wpan_dev *wpan_dev,
const s8 max_frame_retries)
{
struct ieee802154_local *local = wpan_phy_priv(wpan_phy);
ASSERT_RTNL();
if (!(local->hw.flags & IEEE802154_HW_FRAME_RETRIES))
return -EOPNOTSUPP;
wpan_dev->frame_retries = max_frame_retries;
return 0;
}
const struct cfg802154_ops mac802154_config_ops = {
.add_virtual_intf_deprecated = ieee802154_add_iface_deprecated,
.del_virtual_intf_deprecated = ieee802154_del_iface_deprecated,
@ -148,4 +163,5 @@ const struct cfg802154_ops mac802154_config_ops = {
.set_short_addr = ieee802154_set_short_addr,
.set_backoff_exponent = ieee802154_set_backoff_exponent,
.set_max_csma_backoffs = ieee802154_set_max_csma_backoffs,
.set_max_frame_retries = ieee802154_set_max_frame_retries,
};