mac802154: make csma/cca parameters per-wpan
Commit 9b2777d6089bcd (ieee802154: add TX power control to wpan_phy)
and following erroneously added CSMA and CCA parameters for 802.15.4
devices as PHY parameters, while they are actually MAC parameters and
can differ for any two WPAN instances. Since it is now sensible to have
multiple WPAN devices with differing CSMA/CCA parameters, make these
parameters MAC parameters instead.
Signed-off-by: Phoebe Buckheister <phoebe.buckheister@itwm.fraunhofer.de>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/nl802154.h b/include/linux/nl802154.h
index e110b8c..c8d7f39 100644
--- a/include/linux/nl802154.h
+++ b/include/linux/nl802154.h
@@ -132,7 +132,7 @@
IEEE802154_ADD_IFACE,
IEEE802154_DEL_IFACE,
- IEEE802154_SET_PHYPARAMS,
+ IEEE802154_SET_MACPARAMS,
__IEEE802154_CMD_MAX,
};
diff --git a/include/net/ieee802154_netdev.h b/include/net/ieee802154_netdev.h
index e1717cb..5a719ca 100644
--- a/include/net/ieee802154_netdev.h
+++ b/include/net/ieee802154_netdev.h
@@ -229,6 +229,18 @@
#define IEEE802154_MAC_SCAN_PASSIVE 2
#define IEEE802154_MAC_SCAN_ORPHAN 3
+struct ieee802154_mac_params {
+ s8 transmit_power;
+ u8 min_be;
+ u8 max_be;
+ u8 csma_retries;
+ s8 frame_retries;
+
+ bool lbt;
+ u8 cca_mode;
+ s32 cca_ed_level;
+};
+
struct wpan_phy;
/*
* This should be located at net_device->ml_priv
@@ -255,6 +267,11 @@
int (*scan_req)(struct net_device *dev,
u8 type, u32 channels, u8 page, u8 duration);
+ int (*set_mac_params)(struct net_device *dev,
+ const struct ieee802154_mac_params *params);
+ void (*get_mac_params)(struct net_device *dev,
+ struct ieee802154_mac_params *params);
+
/* The fields below are required. */
struct wpan_phy *(*get_phy)(const struct net_device *dev);
diff --git a/net/ieee802154/ieee802154.h b/net/ieee802154/ieee802154.h
index 6cbc896..6693a5c 100644
--- a/net/ieee802154/ieee802154.h
+++ b/net/ieee802154/ieee802154.h
@@ -53,7 +53,6 @@
int ieee802154_dump_phy(struct sk_buff *skb, struct netlink_callback *cb);
int ieee802154_add_iface(struct sk_buff *skb, struct genl_info *info);
int ieee802154_del_iface(struct sk_buff *skb, struct genl_info *info);
-int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info);
enum ieee802154_mcgrp_ids {
IEEE802154_COORD_MCGRP,
@@ -67,5 +66,6 @@
int ieee802154_start_req(struct sk_buff *skb, struct genl_info *info);
int ieee802154_list_iface(struct sk_buff *skb, struct genl_info *info);
int ieee802154_dump_iface(struct sk_buff *skb, struct netlink_callback *cb);
+int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info);
#endif
diff --git a/net/ieee802154/netlink.c b/net/ieee802154/netlink.c
index 67c151b..04b2058 100644
--- a/net/ieee802154/netlink.c
+++ b/net/ieee802154/netlink.c
@@ -115,7 +115,6 @@
ieee802154_dump_phy),
IEEE802154_OP(IEEE802154_ADD_IFACE, ieee802154_add_iface),
IEEE802154_OP(IEEE802154_DEL_IFACE, ieee802154_del_iface),
- IEEE802154_OP(IEEE802154_SET_PHYPARAMS, ieee802154_set_phyparams),
/* see nl-mac.c */
IEEE802154_OP(IEEE802154_ASSOCIATE_REQ, ieee802154_associate_req),
IEEE802154_OP(IEEE802154_ASSOCIATE_RESP, ieee802154_associate_resp),
@@ -124,6 +123,7 @@
IEEE802154_OP(IEEE802154_START_REQ, ieee802154_start_req),
IEEE802154_DUMP(IEEE802154_LIST_IFACE, ieee802154_list_iface,
ieee802154_dump_iface),
+ IEEE802154_OP(IEEE802154_SET_MACPARAMS, ieee802154_set_macparams),
};
static const struct genl_multicast_group ieee802154_mcgrps[] = {
diff --git a/net/ieee802154/nl-mac.c b/net/ieee802154/nl-mac.c
index bda8dba..5d28549 100644
--- a/net/ieee802154/nl-mac.c
+++ b/net/ieee802154/nl-mac.c
@@ -264,6 +264,7 @@
{
void *hdr;
struct wpan_phy *phy;
+ struct ieee802154_mlme_ops *ops;
__le16 short_addr, pan_id;
pr_debug("%s\n", __func__);
@@ -273,11 +274,12 @@
if (!hdr)
goto out;
- phy = ieee802154_mlme_ops(dev)->get_phy(dev);
+ ops = ieee802154_mlme_ops(dev);
+ phy = ops->get_phy(dev);
BUG_ON(!phy);
- short_addr = ieee802154_mlme_ops(dev)->get_short_addr(dev);
- pan_id = ieee802154_mlme_ops(dev)->get_pan_id(dev);
+ short_addr = ops->get_short_addr(dev);
+ pan_id = ops->get_pan_id(dev);
if (nla_put_string(msg, IEEE802154_ATTR_DEV_NAME, dev->name) ||
nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
@@ -287,6 +289,30 @@
nla_put_shortaddr(msg, IEEE802154_ATTR_SHORT_ADDR, short_addr) ||
nla_put_shortaddr(msg, IEEE802154_ATTR_PAN_ID, pan_id))
goto nla_put_failure;
+
+ if (ops->get_mac_params) {
+ struct ieee802154_mac_params params;
+
+ ops->get_mac_params(dev, ¶ms);
+
+ if (nla_put_s8(msg, IEEE802154_ATTR_TXPOWER,
+ params.transmit_power) ||
+ nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, params.lbt) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE,
+ params.cca_mode) ||
+ nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL,
+ params.cca_ed_level) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES,
+ params.csma_retries) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE,
+ params.min_be) ||
+ nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE,
+ params.max_be) ||
+ nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES,
+ params.frame_retries))
+ goto nla_put_failure;
+ }
+
wpan_phy_put(phy);
return genlmsg_end(msg, hdr);
@@ -599,3 +625,93 @@
return skb->len;
}
+
+int ieee802154_set_macparams(struct sk_buff *skb, struct genl_info *info)
+{
+ struct net_device *dev = NULL;
+ struct ieee802154_mlme_ops *ops;
+ struct ieee802154_mac_params params;
+ struct wpan_phy *phy;
+ int rc = -EINVAL;
+
+ pr_debug("%s\n", __func__);
+
+ dev = ieee802154_nl_get_dev(info);
+ if (!dev)
+ return -ENODEV;
+
+ ops = ieee802154_mlme_ops(dev);
+
+ if (!ops->get_mac_params || !ops->set_mac_params) {
+ rc = -EOPNOTSUPP;
+ goto out;
+ }
+
+ if (netif_running(dev)) {
+ rc = -EBUSY;
+ goto out;
+ }
+
+ if (!info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
+ !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
+ !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
+ !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
+ !info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
+ goto out;
+
+ phy = ops->get_phy(dev);
+
+ if ((!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) ||
+ (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) ||
+ (!phy->set_cca_ed_level &&
+ info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) ||
+ (!phy->set_csma_params &&
+ (info->attrs[IEEE802154_ATTR_CSMA_RETRIES] ||
+ info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] ||
+ info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])) ||
+ (!phy->set_frame_retries &&
+ info->attrs[IEEE802154_ATTR_FRAME_RETRIES])) {
+ rc = -EOPNOTSUPP;
+ goto out_phy;
+ }
+
+ ops->get_mac_params(dev, ¶ms);
+
+ if (info->attrs[IEEE802154_ATTR_TXPOWER])
+ params.transmit_power = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]);
+
+ if (info->attrs[IEEE802154_ATTR_LBT_ENABLED])
+ params.lbt = nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
+
+ if (info->attrs[IEEE802154_ATTR_CCA_MODE])
+ params.cca_mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
+
+ if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL])
+ params.cca_ed_level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
+ params.csma_retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
+ params.min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
+
+ if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
+ params.max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
+
+ if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
+ params.frame_retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
+
+ rc = ops->set_mac_params(dev, ¶ms);
+
+ wpan_phy_put(phy);
+ dev_put(dev);
+ return rc;
+
+out_phy:
+ wpan_phy_put(phy);
+out:
+ dev_put(dev);
+ return rc;
+}
diff --git a/net/ieee802154/nl-phy.c b/net/ieee802154/nl-phy.c
index 222310a..89b265a 100644
--- a/net/ieee802154/nl-phy.c
+++ b/net/ieee802154/nl-phy.c
@@ -55,15 +55,7 @@
mutex_lock(&phy->pib_lock);
if (nla_put_string(msg, IEEE802154_ATTR_PHY_NAME, wpan_phy_name(phy)) ||
nla_put_u8(msg, IEEE802154_ATTR_PAGE, phy->current_page) ||
- nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel) ||
- nla_put_s8(msg, IEEE802154_ATTR_TXPOWER, phy->transmit_power) ||
- nla_put_u8(msg, IEEE802154_ATTR_LBT_ENABLED, phy->lbt) ||
- nla_put_u8(msg, IEEE802154_ATTR_CCA_MODE, phy->cca_mode) ||
- nla_put_s32(msg, IEEE802154_ATTR_CCA_ED_LEVEL, phy->cca_ed_level) ||
- nla_put_u8(msg, IEEE802154_ATTR_CSMA_RETRIES, phy->csma_retries) ||
- nla_put_u8(msg, IEEE802154_ATTR_CSMA_MIN_BE, phy->min_be) ||
- nla_put_u8(msg, IEEE802154_ATTR_CSMA_MAX_BE, phy->max_be) ||
- nla_put_s8(msg, IEEE802154_ATTR_FRAME_RETRIES, phy->frame_retries))
+ nla_put_u8(msg, IEEE802154_ATTR_CHANNEL, phy->current_channel))
goto nla_put_failure;
for (i = 0; i < 32; i++) {
if (phy->channels_supported[i])
@@ -362,193 +354,3 @@
return rc;
}
-
-static int phy_set_txpower(struct wpan_phy *phy, struct genl_info *info)
-{
- int txpower = nla_get_s8(info->attrs[IEEE802154_ATTR_TXPOWER]);
- int rc;
-
- rc = phy->set_txpower(phy, txpower);
- if (rc < 0)
- return rc;
-
- phy->transmit_power = txpower;
-
- return 0;
-}
-
-static int phy_set_lbt(struct wpan_phy *phy, struct genl_info *info)
-{
- u8 on = !!nla_get_u8(info->attrs[IEEE802154_ATTR_LBT_ENABLED]);
- int rc;
-
- rc = phy->set_lbt(phy, on);
- if (rc < 0)
- return rc;
-
- phy->lbt = on;
-
- return 0;
-}
-
-static int phy_set_cca_mode(struct wpan_phy *phy, struct genl_info *info)
-{
- u8 mode = nla_get_u8(info->attrs[IEEE802154_ATTR_CCA_MODE]);
- int rc;
-
- if (mode > 3)
- return -EINVAL;
-
- rc = phy->set_cca_mode(phy, mode);
- if (rc < 0)
- return rc;
-
- phy->cca_mode = mode;
-
- return 0;
-}
-
-static int phy_set_cca_ed_level(struct wpan_phy *phy, struct genl_info *info)
-{
- s32 level = nla_get_s32(info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]);
- int rc;
-
- rc = phy->set_cca_ed_level(phy, level);
- if (rc < 0)
- return rc;
-
- phy->cca_ed_level = level;
-
- return 0;
-}
-
-static int phy_set_csma_params(struct wpan_phy *phy, struct genl_info *info)
-{
- int rc;
- u8 min_be = phy->min_be;
- u8 max_be = phy->max_be;
- u8 retries = phy->csma_retries;
-
- if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES])
- retries = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_RETRIES]);
- if (info->attrs[IEEE802154_ATTR_CSMA_MIN_BE])
- min_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MIN_BE]);
- if (info->attrs[IEEE802154_ATTR_CSMA_MAX_BE])
- max_be = nla_get_u8(info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]);
-
- if (retries > 5 || max_be < 3 || max_be > 8 || min_be > max_be)
- return -EINVAL;
-
- rc = phy->set_csma_params(phy, min_be, max_be, retries);
- if (rc < 0)
- return rc;
-
- phy->min_be = min_be;
- phy->max_be = max_be;
- phy->csma_retries = retries;
-
- return 0;
-}
-
-static int phy_set_frame_retries(struct wpan_phy *phy, struct genl_info *info)
-{
- s8 retries = nla_get_s8(info->attrs[IEEE802154_ATTR_FRAME_RETRIES]);
- int rc;
-
- if (retries < -1 || retries > 7)
- return -EINVAL;
-
- rc = phy->set_frame_retries(phy, retries);
- if (rc < 0)
- return rc;
-
- phy->frame_retries = retries;
-
- return 0;
-}
-
-int ieee802154_set_phyparams(struct sk_buff *skb, struct genl_info *info)
-{
- struct wpan_phy *phy;
- const char *name;
- int rc = -ENOTSUPP;
-
- pr_debug("%s\n", __func__);
-
- if (!info->attrs[IEEE802154_ATTR_PHY_NAME] &&
- !info->attrs[IEEE802154_ATTR_LBT_ENABLED] &&
- !info->attrs[IEEE802154_ATTR_CCA_MODE] &&
- !info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL] &&
- !info->attrs[IEEE802154_ATTR_CSMA_RETRIES] &&
- !info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] &&
- !info->attrs[IEEE802154_ATTR_CSMA_MAX_BE] &&
- !info->attrs[IEEE802154_ATTR_FRAME_RETRIES])
- return -EINVAL;
-
- name = nla_data(info->attrs[IEEE802154_ATTR_PHY_NAME]);
- if (name[nla_len(info->attrs[IEEE802154_ATTR_PHY_NAME]) - 1] != '\0')
- return -EINVAL; /* phy name should be null-terminated */
-
- phy = wpan_phy_find(name);
- if (!phy)
- return -ENODEV;
-
- if ((!phy->set_txpower && info->attrs[IEEE802154_ATTR_TXPOWER]) ||
- (!phy->set_lbt && info->attrs[IEEE802154_ATTR_LBT_ENABLED]) ||
- (!phy->set_cca_mode && info->attrs[IEEE802154_ATTR_CCA_MODE]) ||
- (!phy->set_cca_ed_level &&
- info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]))
- goto out;
-
- mutex_lock(&phy->pib_lock);
-
- if (info->attrs[IEEE802154_ATTR_TXPOWER]) {
- rc = phy_set_txpower(phy, info);
- if (rc < 0)
- goto error;
- }
-
- if (info->attrs[IEEE802154_ATTR_LBT_ENABLED]) {
- rc = phy_set_lbt(phy, info);
- if (rc < 0)
- goto error;
- }
-
- if (info->attrs[IEEE802154_ATTR_CCA_MODE]) {
- rc = phy_set_cca_mode(phy, info);
- if (rc < 0)
- goto error;
- }
-
- if (info->attrs[IEEE802154_ATTR_CCA_ED_LEVEL]) {
- rc = phy_set_cca_ed_level(phy, info);
- if (rc < 0)
- goto error;
- }
-
- if (info->attrs[IEEE802154_ATTR_CSMA_RETRIES] ||
- info->attrs[IEEE802154_ATTR_CSMA_MIN_BE] ||
- info->attrs[IEEE802154_ATTR_CSMA_MAX_BE]) {
- rc = phy_set_csma_params(phy, info);
- if (rc < 0)
- goto error;
- }
-
- if (info->attrs[IEEE802154_ATTR_FRAME_RETRIES]) {
- rc = phy_set_frame_retries(phy, info);
- if (rc < 0)
- goto error;
- }
-
- mutex_unlock(&phy->pib_lock);
-
- wpan_phy_put(phy);
-
- return 0;
-
-error:
- mutex_unlock(&phy->pib_lock);
-out:
- wpan_phy_put(phy);
- return rc;
-}
diff --git a/net/ieee802154/wpan-class.c b/net/ieee802154/wpan-class.c
index edd0962..8d6f670 100644
--- a/net/ieee802154/wpan-class.c
+++ b/net/ieee802154/wpan-class.c
@@ -169,12 +169,6 @@
phy->current_channel = -1; /* not initialised */
phy->current_page = 0; /* for compatibility */
- /* defaults per 802.15.4-2011 */
- phy->min_be = 3;
- phy->max_be = 5;
- phy->csma_retries = 4;
- phy->frame_retries = -1; /* for compatibility, actual default is 3 */
-
return phy;
out:
diff --git a/net/mac802154/ieee802154_dev.c b/net/mac802154/ieee802154_dev.c
index e7aa764..2cf66d8 100644
--- a/net/mac802154/ieee802154_dev.c
+++ b/net/mac802154/ieee802154_dev.c
@@ -197,9 +197,6 @@
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
- if (!priv->ops->set_txpower)
- return -ENOTSUPP;
-
return priv->ops->set_txpower(&priv->hw, db);
}
@@ -207,9 +204,6 @@
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
- if (!priv->ops->set_lbt)
- return -ENOTSUPP;
-
return priv->ops->set_lbt(&priv->hw, on);
}
@@ -217,9 +211,6 @@
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
- if (!priv->ops->set_cca_mode)
- return -ENOTSUPP;
-
return priv->ops->set_cca_mode(&priv->hw, mode);
}
@@ -227,9 +218,6 @@
{
struct mac802154_priv *priv = wpan_phy_priv(phy);
- if (!priv->ops->set_cca_ed_level)
- return -ENOTSUPP;
-
return priv->ops->set_cca_ed_level(&priv->hw, level);
}
@@ -238,9 +226,6 @@
{
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);
}
@@ -248,9 +233,6 @@
{
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);
}
@@ -331,12 +313,18 @@
priv->phy->add_iface = mac802154_add_iface;
priv->phy->del_iface = mac802154_del_iface;
- priv->phy->set_txpower = mac802154_set_txpower;
- 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;
+ if (priv->ops->set_txpower)
+ priv->phy->set_txpower = mac802154_set_txpower;
+ if (priv->ops->set_lbt)
+ priv->phy->set_lbt = mac802154_set_lbt;
+ if (priv->ops->set_cca_mode)
+ priv->phy->set_cca_mode = mac802154_set_cca_mode;
+ if (priv->ops->set_cca_ed_level)
+ priv->phy->set_cca_ed_level = mac802154_set_cca_ed_level;
+ if (priv->ops->set_csma_params)
+ priv->phy->set_csma_params = mac802154_set_csma_params;
+ if (priv->ops->set_frame_retries)
+ priv->phy->set_frame_retries = mac802154_set_frame_retries;
rc = wpan_phy_register(priv->phy);
if (rc < 0)
diff --git a/net/mac802154/mac802154.h b/net/mac802154/mac802154.h
index f40522e..28ef59c 100644
--- a/net/mac802154/mac802154.h
+++ b/net/mac802154/mac802154.h
@@ -23,6 +23,8 @@
#ifndef MAC802154_H
#define MAC802154_H
+#include <net/ieee802154_netdev.h>
+
/* mac802154 device private data */
struct mac802154_priv {
struct ieee802154_dev hw;
@@ -82,6 +84,8 @@
u8 chan;
u8 page;
+ struct ieee802154_mac_params mac_params;
+
/* MAC BSN field */
u8 bsn;
/* MAC DSN field */
@@ -116,4 +120,9 @@
void mac802154_dev_set_page_channel(struct net_device *dev, u8 page, u8 chan);
u8 mac802154_dev_get_dsn(const struct net_device *dev);
+int mac802154_set_mac_params(struct net_device *dev,
+ const struct ieee802154_mac_params *params);
+void mac802154_get_mac_params(struct net_device *dev,
+ struct ieee802154_mac_params *params);
+
#endif /* MAC802154_H */
diff --git a/net/mac802154/mac_cmd.c b/net/mac802154/mac_cmd.c
index 15bac33..d40c092 100644
--- a/net/mac802154/mac_cmd.c
+++ b/net/mac802154/mac_cmd.c
@@ -74,4 +74,7 @@
.get_pan_id = mac802154_dev_get_pan_id,
.get_short_addr = mac802154_dev_get_short_addr,
.get_dsn = mac802154_dev_get_dsn,
+
+ .set_mac_params = mac802154_set_mac_params,
+ .get_mac_params = mac802154_get_mac_params,
};
diff --git a/net/mac802154/wpan.c b/net/mac802154/wpan.c
index 80cbee1..1df7a6a 100644
--- a/net/mac802154/wpan.c
+++ b/net/mac802154/wpan.c
@@ -102,6 +102,87 @@
return 0;
}
+int mac802154_set_mac_params(struct net_device *dev,
+ const struct ieee802154_mac_params *params)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ mutex_lock(&priv->hw->slaves_mtx);
+ priv->mac_params = *params;
+ mutex_unlock(&priv->hw->slaves_mtx);
+
+ return 0;
+}
+
+void mac802154_get_mac_params(struct net_device *dev,
+ struct ieee802154_mac_params *params)
+{
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+
+ mutex_lock(&priv->hw->slaves_mtx);
+ *params = priv->mac_params;
+ mutex_unlock(&priv->hw->slaves_mtx);
+}
+
+int mac802154_wpan_open(struct net_device *dev)
+{
+ int rc;
+ struct mac802154_sub_if_data *priv = netdev_priv(dev);
+ struct wpan_phy *phy = priv->hw->phy;
+
+ rc = mac802154_slave_open(dev);
+ if (rc < 0)
+ return rc;
+
+ mutex_lock(&phy->pib_lock);
+
+ if (phy->set_txpower) {
+ rc = phy->set_txpower(phy, priv->mac_params.transmit_power);
+ if (rc < 0)
+ goto out;
+ }
+
+ if (phy->set_lbt) {
+ rc = phy->set_lbt(phy, priv->mac_params.lbt);
+ if (rc < 0)
+ goto out;
+ }
+
+ if (phy->set_cca_mode) {
+ rc = phy->set_cca_mode(phy, priv->mac_params.cca_mode);
+ if (rc < 0)
+ goto out;
+ }
+
+ if (phy->set_cca_ed_level) {
+ rc = phy->set_cca_ed_level(phy, priv->mac_params.cca_ed_level);
+ if (rc < 0)
+ goto out;
+ }
+
+ if (phy->set_csma_params) {
+ rc = phy->set_csma_params(phy, priv->mac_params.min_be,
+ priv->mac_params.max_be,
+ priv->mac_params.csma_retries);
+ if (rc < 0)
+ goto out;
+ }
+
+ if (phy->set_frame_retries) {
+ rc = phy->set_frame_retries(phy,
+ priv->mac_params.frame_retries);
+ if (rc < 0)
+ goto out;
+ }
+
+ mutex_unlock(&phy->pib_lock);
+ return 0;
+
+out:
+ mutex_unlock(&phy->pib_lock);
+ return rc;
+}
+
static int mac802154_header_create(struct sk_buff *skb,
struct net_device *dev,
unsigned short type,
@@ -204,7 +285,7 @@
};
static const struct net_device_ops mac802154_wpan_ops = {
- .ndo_open = mac802154_slave_open,
+ .ndo_open = mac802154_wpan_open,
.ndo_stop = mac802154_slave_close,
.ndo_start_xmit = mac802154_wpan_xmit,
.ndo_do_ioctl = mac802154_wpan_ioctl,
@@ -242,6 +323,12 @@
get_random_bytes(&priv->bsn, 1);
get_random_bytes(&priv->dsn, 1);
+ /* defaults per 802.15.4-2011 */
+ priv->mac_params.min_be = 3;
+ priv->mac_params.max_be = 5;
+ priv->mac_params.csma_retries = 4;
+ priv->mac_params.frame_retries = -1; /* for compatibility, actual default is 3 */
+
priv->pan_id = cpu_to_le16(IEEE802154_PANID_BROADCAST);
priv->short_addr = cpu_to_le16(IEEE802154_ADDR_BROADCAST);
}