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authorDavid S. Miller <davem@davemloft.net>2009-11-18 10:55:32 -0800
committerDavid S. Miller <davem@davemloft.net>2009-11-18 10:55:32 -0800
commitdfef948ed2ba69cf041840b5e860d6b4e16fa0b1 (patch)
treeeab385cabe589346bcf19385c997ab8dabaef7bd /drivers/net/wireless/iwlwifi/iwl-prph.h
parentea31ba359c55e0734ff895692185d4c50cf0c537 (diff)
parentc85e9d7739fc8d879c4293ea020760926d6f87cd (diff)
downloadlinux-rt-dfef948ed2ba69cf041840b5e860d6b4e16fa0b1.tar.gz
Merge branch 'master' of git://git.kernel.org/pub/scm/linux/kernel/git/linville/wireless-next-2.6
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-prph.h')
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-prph.h19
1 files changed, 16 insertions, 3 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h
index d393e8f02102..6d95832db06d 100644
--- a/drivers/net/wireless/iwlwifi/iwl-prph.h
+++ b/drivers/net/wireless/iwlwifi/iwl-prph.h
@@ -254,7 +254,8 @@
* device. A queue maps to only one (selectable by driver) Tx DMA channel,
* but one DMA channel may take input from several queues.
*
- * Tx DMA channels have dedicated purposes. For 4965, they are used as follows:
+ * Tx DMA channels have dedicated purposes. For 4965, they are used as follows
+ * (cf. default_queue_to_tx_fifo in iwl-4965.c):
*
* 0 -- EDCA BK (background) frames, lowest priority
* 1 -- EDCA BE (best effort) frames, normal priority
@@ -265,9 +266,21 @@
* 6 -- HCCA long frames
* 7 -- not used by driver (device-internal only)
*
+ * For 5000 series and up, they are used slightly differently
+ * (cf. iwl5000_default_queue_to_tx_fifo in iwl-5000.c):
+ *
+ * 0 -- EDCA BK (background) frames, lowest priority
+ * 1 -- EDCA BE (best effort) frames, normal priority
+ * 2 -- EDCA VI (video) frames, higher priority
+ * 3 -- EDCA VO (voice) and management frames, highest priority
+ * 4 -- (TBD)
+ * 5 -- HCCA short frames
+ * 6 -- HCCA long frames
+ * 7 -- Commands
+ *
* Driver should normally map queues 0-6 to Tx DMA/FIFO channels 0-6.
- * In addition, driver can map queues 7-15 to Tx DMA/FIFO channels 0-3 to
- * support 11n aggregation via EDCA DMA channels.
+ * In addition, driver can map the remaining queues to Tx DMA/FIFO
+ * channels 0-3 to support 11n aggregation via EDCA DMA channels.
*
* The driver sets up each queue to work in one of two modes:
*