diff options
| author | Emmanuel Grumbach <emmanuel.grumbach@intel.com> | 2008-05-15 13:54:08 +0800 |
|---|---|---|
| committer | John W. Linville <linville@tuxdriver.com> | 2008-05-21 21:48:00 -0400 |
| commit | a98410139a2ef6553ae5d73bf12bb9a68d0b38b9 (patch) | |
| tree | 55401ad30cf0ecc3f007704e6d523567f040124b /drivers/net/wireless/iwlwifi/iwl-4965-rs.c | |
| parent | fd4abac54a7a7f1c0acad5ddc1fbf4af22f92569 (diff) | |
iwlwifi: don't switch to SGI if not supported by AP
This patch fixes SGI support. RS didn't look at the capabilities of the AP
before switching to SGI, this should lead to a stall in the traffic with an
AP that doesn't support SGI.
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Signed-off-by: Guy Cohen <guy.cohen@intel.com>
Signed-off-by: Tomas Winkler <tomas.winkler@intel.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-4965-rs.c')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-4965-rs.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c index 071c7b6ebef2..2adc2281c77c 100644 --- a/drivers/net/wireless/iwlwifi/iwl-4965-rs.c +++ b/drivers/net/wireless/iwlwifi/iwl-4965-rs.c @@ -1439,6 +1439,15 @@ static int rs_move_siso_to_other(struct iwl_priv *priv, } break; case IWL_SISO_SWITCH_GI: + if (!tbl->is_fat && + !(priv->current_ht_config.sgf & + HT_SHORT_GI_20MHZ)) + break; + if (tbl->is_fat && + !(priv->current_ht_config.sgf & + HT_SHORT_GI_40MHZ)) + break; + IWL_DEBUG_RATE("LQ: SISO toggle SGI/NGI\n"); memcpy(search_tbl, tbl, sz); @@ -1521,6 +1530,15 @@ static int rs_move_mimo_to_other(struct iwl_priv *priv, break; case IWL_MIMO_SWITCH_GI: + if (!tbl->is_fat && + !(priv->current_ht_config.sgf & + HT_SHORT_GI_20MHZ)) + break; + if (tbl->is_fat && + !(priv->current_ht_config.sgf & + HT_SHORT_GI_40MHZ)) + break; + IWL_DEBUG_RATE("LQ: MIMO toggle SGI/NGI\n"); /* Set up new search table for MIMO */ |