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Add some comments to a Kconfig file; Fix a typo introduced in previous commit.

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This commit is contained in:
Gregory Nutt
2017-06-21 10:40:36 -06:00
parent 8db9461e0e
commit 2397bc728b
2 changed files with 23 additions and 5 deletions
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drivers/wireless/ieee802154/mrf24j40.c
+1 -1
View File
@@ -247,7 +247,7 @@ static int mrf24j40_req_rxenable(FAR struct ieee802154_radio_s *radio,
* Private Data * Private Data
****************************************************************************/ ****************************************************************************/
static const uint8_t g_allones[9] = static const uint8_t g_allones[8] =
{ {
0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF
}; };
wireless/ieee802154/Kconfig
+22 -4
View File
@@ -23,14 +23,23 @@ config IEEE802154_DEFAULT_EADDR
choice choice
prompt "IEEE 802.15.4 work queue" prompt "IEEE 802.15.4 work queue"
default MAC802154_LPWORK if SCHED_LPWORK default MAC802154_HPWORK if SCHED_HPWORK
default MAC802154_HPWORK if !SCHED_LPWORK && SCHED_HPWORK default MAC802154_LPWORK if !SCHED_HPWORK && SCHED_LPWORK
depends on SCHED_WORKQUEUE depends on SCHED_WORKQUEUE
---help--- ---help---
Work queue support is required to use the IEEE 802.15.4 MAC layer. Work queue support is required to use the IEEE 802.15.4 MAC layer.
If the low priority work queue is available, then it should be used by If the high priority work queue is available, then it should be used by
the driver. the driver.
WARNING!! The IEEE802.15.4 network device must never run on the same
work queue as does the IEEE 802.15.4 MAC. That configuration will
cause deadlocks: The network logic may be blocked on the work queue
waiting on resources that can only be free by the MAC logic but the
MAC is unable to run because the work queue is blocked. The
recommend configuration is: Network on the LP work queue; MAC on HP
work queue. Blocking on the HP work queue is a very bad thing in
any case.
config MAC802154_HPWORK config MAC802154_HPWORK
bool "High priority" bool "High priority"
depends on SCHED_HPWORK depends on SCHED_HPWORK
@@ -159,9 +168,18 @@ choice
depends on SCHED_WORKQUEUE depends on SCHED_WORKQUEUE
---help--- ---help---
Work queue support is required to use the IEEE802.15.4 network Work queue support is required to use the IEEE802.15.4 network
driver. If the low priority work queue is available, then it shoul driver. If the low priority work queue is available, then it should
be used by the loopback driver. be used by the loopback driver.
WARNING!! The IEEE802.15.4 network device must never run on the same
work queue as does the IEEE 802.15.4 MAC. That configuration will
cause deadlocks: The network logic may be blocked on the work queue
waiting on resources that can only be free by the MAC logic but the
MAC is unable to run because the work queue is blocked. The
recommend configuration is: Network on the LP work queue; MAC on HP
work queue. Blocking on the HP work queue is a very bad thing in
any case.
config IEEE802154_NETDEV_HPWORK config IEEE802154_NETDEV_HPWORK
bool "High priority" bool "High priority"
depends on SCHED_HPWORK depends on SCHED_HPWORK