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-rw-r--r--drivers/net/wireless/iwlwifi/iwl-1000.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-2000.c2
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-5000.c1
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-6000.c3
-rw-r--r--drivers/net/wireless/iwlwifi/iwl-config.h2
-rw-r--r--drivers/net/wireless/iwlwifi/pcie/tx.c3
6 files changed, 11 insertions, 1 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-1000.c b/drivers/net/wireless/iwlwifi/iwl-1000.c
index 854ba84ccb73..c3817fae16c0 100644
--- a/drivers/net/wireless/iwlwifi/iwl-1000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-1000.c
@@ -62,6 +62,7 @@ static const struct iwl_base_params iwl1000_base_params = {
.led_compensation = 51,
.wd_timeout = IWL_WATCHDOG_DISABLED,
.max_event_log_size = 128,
+ .scd_chain_ext_wa = true,
};
static const struct iwl_ht_params iwl1000_ht_params = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-2000.c b/drivers/net/wireless/iwlwifi/iwl-2000.c
index 3e63323637f3..21e5d0843a62 100644
--- a/drivers/net/wireless/iwlwifi/iwl-2000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-2000.c
@@ -75,6 +75,7 @@ static const struct iwl_base_params iwl2000_base_params = {
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+ .scd_chain_ext_wa = true,
};
@@ -88,6 +89,7 @@ static const struct iwl_base_params iwl2030_base_params = {
.wd_timeout = IWL_LONG_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+ .scd_chain_ext_wa = true,
};
static const struct iwl_ht_params iwl2000_ht_params = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-5000.c b/drivers/net/wireless/iwlwifi/iwl-5000.c
index 6674f2c4541c..332bbede39e5 100644
--- a/drivers/net/wireless/iwlwifi/iwl-5000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-5000.c
@@ -61,6 +61,7 @@ static const struct iwl_base_params iwl5000_base_params = {
.led_compensation = 51,
.wd_timeout = IWL_WATCHDOG_DISABLED,
.max_event_log_size = 512,
+ .scd_chain_ext_wa = true,
};
static const struct iwl_ht_params iwl5000_ht_params = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-6000.c b/drivers/net/wireless/iwlwifi/iwl-6000.c
index 8048de90233f..8f2c3c8c6b84 100644
--- a/drivers/net/wireless/iwlwifi/iwl-6000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-6000.c
@@ -85,6 +85,7 @@ static const struct iwl_base_params iwl6000_base_params = {
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+ .scd_chain_ext_wa = true,
};
static const struct iwl_base_params iwl6050_base_params = {
@@ -97,6 +98,7 @@ static const struct iwl_base_params iwl6050_base_params = {
.wd_timeout = IWL_DEF_WD_TIMEOUT,
.max_event_log_size = 1024,
.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+ .scd_chain_ext_wa = true,
};
static const struct iwl_base_params iwl6000_g2_base_params = {
@@ -109,6 +111,7 @@ static const struct iwl_base_params iwl6000_g2_base_params = {
.wd_timeout = IWL_LONG_WD_TIMEOUT,
.max_event_log_size = 512,
.shadow_reg_enable = false, /* TODO: fix bugs using this feature */
+ .scd_chain_ext_wa = true,
};
static const struct iwl_ht_params iwl6000_ht_params = {
diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 8c167302a4cf..7ce82d9c7222 100644
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -148,6 +148,7 @@ static inline u8 num_of_ant(u8 mask)
* @shadow_reg_enable: HW shadow register support
* @apmg_wake_up_wa: should the MAC access REQ be asserted when a command
* is in flight. This is due to a HW bug in 7260, 3160 and 7265.
+ * @scd_chain_ext_wa: should the chain extension feature in SCD be disabled.
*/
struct iwl_base_params {
int eeprom_size;
@@ -163,6 +164,7 @@ struct iwl_base_params {
const bool shadow_reg_enable;
const bool pcie_l1_allowed;
const bool apmg_wake_up_wa;
+ const bool scd_chain_ext_wa;
};
/*
diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c
index 78a6ff215c04..dde6031f4257 100644
--- a/drivers/net/wireless/iwlwifi/pcie/tx.c
+++ b/drivers/net/wireless/iwlwifi/pcie/tx.c
@@ -696,7 +696,8 @@ void iwl_pcie_tx_start(struct iwl_trans *trans, u32 scd_base_addr)
/* The chain extension of the SCD doesn't work well. This feature is
* enabled by default by the HW, so we need to disable it manually.
*/
- iwl_write_prph(trans, SCD_CHAINEXT_EN, 0);
+ if (trans->cfg->base_params->scd_chain_ext_wa)
+ iwl_write_prph(trans, SCD_CHAINEXT_EN, 0);
iwl_trans_ac_txq_enable(trans, trans_pcie->cmd_queue,
trans_pcie->cmd_fifo);