summaryrefslogtreecommitdiffstats
path: root/net/ieee802154
diff options
context:
space:
mode:
authorAlexander Aring <alex.aring@gmail.com>2015-08-10 21:15:58 +0200
committerMarcel Holtmann <marcel@holtmann.org>2015-08-10 20:43:06 +0200
commitc91208d819c814e7f418c7a083059cf533ad0396 (patch)
treea74fb8a149dcdbecfd7ebcb7feefaeaa5d6764ce /net/ieee802154
parentfc0719e6a144402197a2147117f10b66ee623fbb (diff)
downloadlinux-c91208d819c814e7f418c7a083059cf533ad0396.tar.bz2
ieee802154: add ack request default handling
This patch introduce a new mib entry which isn't part of 802.15.4 but useful as default behaviour to set the ack request bit or not if we don't know if the ack request bit should set. This is currently used for stacks like IEEE 802.15.4 6LoWPAN. Reviewed-by: Stefan Schmidt <stefan@osg.samsung.com> Signed-off-by: Alexander Aring <alex.aring@gmail.com> Signed-off-by: Marcel Holtmann <marcel@holtmann.org>
Diffstat (limited to 'net/ieee802154')
-rw-r--r--net/ieee802154/6lowpan/tx.c2
-rw-r--r--net/ieee802154/nl802154.c33
-rw-r--r--net/ieee802154/rdev-ops.h13
-rw-r--r--net/ieee802154/trace.h19
4 files changed, 66 insertions, 1 deletions
diff --git a/net/ieee802154/6lowpan/tx.c b/net/ieee802154/6lowpan/tx.c
index 2597abbf7f4b..1bf4a304b5c4 100644
--- a/net/ieee802154/6lowpan/tx.c
+++ b/net/ieee802154/6lowpan/tx.c
@@ -224,7 +224,7 @@ static int lowpan_header(struct sk_buff *skb, struct net_device *dev)
} else {
da.mode = IEEE802154_ADDR_LONG;
da.extended_addr = ieee802154_devaddr_from_raw(daddr);
- cb->ackreq = wpan_dev->frame_retries >= 0;
+ cb->ackreq = wpan_dev->ackreq;
}
return dev_hard_header(skb, lowpan_dev_info(dev)->real_dev,
diff --git a/net/ieee802154/nl802154.c b/net/ieee802154/nl802154.c
index 68f24016860c..1b00a14850cb 100644
--- a/net/ieee802154/nl802154.c
+++ b/net/ieee802154/nl802154.c
@@ -230,6 +230,8 @@ static const struct nla_policy nl802154_policy[NL802154_ATTR_MAX+1] = {
[NL802154_ATTR_WPAN_PHY_CAPS] = { .type = NLA_NESTED },
[NL802154_ATTR_SUPPORTED_COMMANDS] = { .type = NLA_NESTED },
+
+ [NL802154_ATTR_ACKREQ_DEFAULT] = { .type = NLA_U8 },
};
/* message building helper */
@@ -458,6 +460,7 @@ static int nl802154_send_wpan_phy(struct cfg802154_registered_device *rdev,
CMD(set_max_csma_backoffs, SET_MAX_CSMA_BACKOFFS);
CMD(set_max_frame_retries, SET_MAX_FRAME_RETRIES);
CMD(set_lbt_mode, SET_LBT_MODE);
+ CMD(set_ackreq_default, SET_ACKREQ_DEFAULT);
if (rdev->wpan_phy.flags & WPAN_PHY_FLAG_TXPOWER)
CMD(set_tx_power, SET_TX_POWER);
@@ -656,6 +659,10 @@ nl802154_send_iface(struct sk_buff *msg, u32 portid, u32 seq, int flags,
if (nla_put_u8(msg, NL802154_ATTR_LBT_MODE, wpan_dev->lbt))
goto nla_put_failure;
+ /* ackreq default behaviour */
+ if (nla_put_u8(msg, NL802154_ATTR_ACKREQ_DEFAULT, wpan_dev->ackreq))
+ goto nla_put_failure;
+
genlmsg_end(msg, hdr);
return 0;
@@ -1042,6 +1049,24 @@ static int nl802154_set_lbt_mode(struct sk_buff *skb, struct genl_info *info)
return rdev_set_lbt_mode(rdev, wpan_dev, mode);
}
+static int
+nl802154_set_ackreq_default(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;
+ bool ackreq;
+
+ if (netif_running(dev))
+ return -EBUSY;
+
+ if (!info->attrs[NL802154_ATTR_ACKREQ_DEFAULT])
+ return -EINVAL;
+
+ ackreq = !!nla_get_u8(info->attrs[NL802154_ATTR_ACKREQ_DEFAULT]);
+ return rdev_set_ackreq_default(rdev, wpan_dev, ackreq);
+}
+
#define NL802154_FLAG_NEED_WPAN_PHY 0x01
#define NL802154_FLAG_NEED_NETDEV 0x02
#define NL802154_FLAG_NEED_RTNL 0x04
@@ -1248,6 +1273,14 @@ static const struct genl_ops nl802154_ops[] = {
.internal_flags = NL802154_FLAG_NEED_NETDEV |
NL802154_FLAG_NEED_RTNL,
},
+ {
+ .cmd = NL802154_CMD_SET_ACKREQ_DEFAULT,
+ .doit = nl802154_set_ackreq_default,
+ .policy = nl802154_policy,
+ .flags = GENL_ADMIN_PERM,
+ .internal_flags = NL802154_FLAG_NEED_NETDEV |
+ NL802154_FLAG_NEED_RTNL,
+ },
};
/* initialisation/exit functions */
diff --git a/net/ieee802154/rdev-ops.h b/net/ieee802154/rdev-ops.h
index 8d5960a37195..03b357501cc5 100644
--- a/net/ieee802154/rdev-ops.h
+++ b/net/ieee802154/rdev-ops.h
@@ -195,4 +195,17 @@ rdev_set_lbt_mode(struct cfg802154_registered_device *rdev,
return ret;
}
+static inline int
+rdev_set_ackreq_default(struct cfg802154_registered_device *rdev,
+ struct wpan_dev *wpan_dev, bool ackreq)
+{
+ int ret;
+
+ trace_802154_rdev_set_ackreq_default(&rdev->wpan_phy, wpan_dev,
+ ackreq);
+ ret = rdev->ops->set_ackreq_default(&rdev->wpan_phy, wpan_dev, ackreq);
+ trace_802154_rdev_return_int(&rdev->wpan_phy, ret);
+ return ret;
+}
+
#endif /* __CFG802154_RDEV_OPS */
diff --git a/net/ieee802154/trace.h b/net/ieee802154/trace.h
index 4399b7fbaa31..9a471e41ec73 100644
--- a/net/ieee802154/trace.h
+++ b/net/ieee802154/trace.h
@@ -275,6 +275,25 @@ TRACE_EVENT(802154_rdev_set_lbt_mode,
WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->mode))
);
+TRACE_EVENT(802154_rdev_set_ackreq_default,
+ TP_PROTO(struct wpan_phy *wpan_phy, struct wpan_dev *wpan_dev,
+ bool ackreq),
+ TP_ARGS(wpan_phy, wpan_dev, ackreq),
+ TP_STRUCT__entry(
+ WPAN_PHY_ENTRY
+ WPAN_DEV_ENTRY
+ __field(bool, ackreq)
+ ),
+ TP_fast_assign(
+ WPAN_PHY_ASSIGN;
+ WPAN_DEV_ASSIGN;
+ __entry->ackreq = ackreq;
+ ),
+ TP_printk(WPAN_PHY_PR_FMT ", " WPAN_DEV_PR_FMT
+ ", ackreq default: %s", WPAN_PHY_PR_ARG,
+ WPAN_DEV_PR_ARG, BOOL_TO_STR(__entry->ackreq))
+);
+
TRACE_EVENT(802154_rdev_return_int,
TP_PROTO(struct wpan_phy *wpan_phy, int ret),
TP_ARGS(wpan_phy, ret),