diff options
author | Wey-Yi Guy <wey-yi.w.guy@intel.com> | 2010-06-18 14:33:17 -0400 |
---|---|---|
committer | Reinette Chatre <reinette.chatre@intel.com> | 2010-06-25 17:34:45 -0400 |
commit | 062bee448bd539580ef9f64efe50fdfe04eeb103 (patch) | |
tree | 76dd74bee15aa4803bb031076c12147e31bcdb14 /include/linux/inotify.h | |
parent | d1e89f37de2845db364ef6d67586cd882f86b557 (diff) |
iwlwifi: set TX_CMD_FLAG_PROT_REQUIRE_MSK in tx_flag
When building tx command, always set TX_CMD_FLAG_PROT_REQUIRE_MSK
for 5000 series and up.
Without setting this bit the firmware will not examine the RTS/CTS setting
and thus not send traffic with the appropriate protection. RTS/CTS is is
required for HT traffic in a noisy environment where, without this setting,
connections will stall on some hardware as documented in the patch that
initially attempted to address this:
commit 1152dcc28c66a74b5b3f1a3ede0aa6729bfd48e4
Author: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Date: Fri Jan 15 13:42:58 2010 -0800
iwlwifi: Fix throughput stall issue in HT mode for 5000
Similar to 6000 and 1000 series, RTS/CTS is the recommended
protection mechanism for 5000 series in HT mode based on the HW design.
Using RTS/CTS will better protect the inner exchange from interference,
especially in highly-congested environment, it also prevent uCode encounter
TX FIFO underrun and other HT mode related performance issues.
For 3945 and 4965, different flags are used for RTS/CTS or CTS-to-Self
protection.
Signed-off-by: Wey-Yi Guy <wey-yi.w.guy@intel.com>
Signed-off-by: Reinette Chatre <reinette.chatre@intel.com>
Diffstat (limited to 'include/linux/inotify.h')
0 files changed, 0 insertions, 0 deletions