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ieee802154: add netlink APIs for smartMAC configuration

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Introduce new netlink attributes for SET_PHY_ATTRS:
 * CSMA minimal backoff exponent
 * CSMA maximal backoff exponent
 * CSMA retry limit
 * frame retransmission limit

The CSMA attributes shall correspond to minBE, maxBE and maxCSMABackoffs of
802.15.4, respectively. The frame retransmission shall correspond to
maxFrameRetries of 802.15.4, unless given as -1: then the old behaviour
of the stack shall apply. For RF2xy, the old behaviour is to not do
channel sensing at all and simply send *right now*, which is not
intended behaviour for most applications and actually prohibited for
some channel/page combinations.

For all values except frame retransmission limit, the defaults of
802.15.4 apply. Frame retransmission limits are set to -1 to indicate
backward-compatible behaviour.

Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Phoebe Buckheister
2014-02-17 11:34:14 +01:00
committed by David S. Miller
parent 7dcbd22a97
commit 4244db1b0b
7 changed files with 125 additions and 2 deletions
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23
net/mac802154/ieee802154_dev.c
View File

@@ -205,6 +205,27 @@ static int mac802154_set_cca_ed_level(struct wpan_phy *phy, s32 level)
return priv->ops->set_cca_ed_level(&priv->hw, level);
}
static int mac802154_set_csma_params(struct wpan_phy *phy, u8 min_be,
u8 max_be, u8 retries)
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
if (!priv->ops->set_csma_params)
return -ENOTSUPP;
return priv->ops->set_csma_params(&priv->hw, min_be, max_be, retries);
}
static int mac802154_set_frame_retries(struct wpan_phy *phy, s8 retries)
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
if (!priv->ops->set_frame_retries)
return -ENOTSUPP;
return priv->ops->set_frame_retries(&priv->hw, retries);
}
struct ieee802154_dev *
ieee802154_alloc_device(size_t priv_data_len, struct ieee802154_ops *ops)
{
@@ -286,6 +307,8 @@ int ieee802154_register_device(struct ieee802154_dev *dev)
priv->phy->set_lbt = mac802154_set_lbt;
priv->phy->set_cca_mode = mac802154_set_cca_mode;
priv->phy->set_cca_ed_level = mac802154_set_cca_ed_level;
priv->phy->set_csma_params = mac802154_set_csma_params;
priv->phy->set_frame_retries = mac802154_set_frame_retries;
rc = wpan_phy_register(priv->phy);
if (rc < 0)