From: Haim Dreyfuss Date: Sun, 14 Jun 2015 08:17:07 +0000 (+0300) Subject: iwlwifi: pcie: Set scheduler to work on auto mode X-Git-Tag: v4.3-rc1~96^2~124^2~42^2~31 X-Git-Url: https://git.karo-electronics.de/?a=commitdiff_plain;h=94ce9e5e73c71b26a19b83844f9840859f3b035b;p=karo-tx-linux.git iwlwifi: pcie: Set scheduler to work on auto mode During NIC initialization shared HW is reset and this disables the scheduler. Some HW platforms do not activate the scheduler after it. Consequently all HCMD sent by the driver stay at the queues which cause to queue stuck. Set the scheduler to work on auto active mode so it would be activated upon change over one of the queues' write pointer. Signed-off-by: Haim Dreyfuss Signed-off-by: Emmanuel Grumbach --- diff --git a/drivers/net/wireless/iwlwifi/iwl-prph.h b/drivers/net/wireless/iwlwifi/iwl-prph.h index 5af1c776d2d4..a8469041af09 100644 --- a/drivers/net/wireless/iwlwifi/iwl-prph.h +++ b/drivers/net/wireless/iwlwifi/iwl-prph.h @@ -253,6 +253,7 @@ #define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_POS (16) #define SCD_QUEUE_CTX_REG2_FRAME_LIMIT_MSK (0x007F0000) #define SCD_GP_CTRL_ENABLE_31_QUEUES BIT(0) +#define SCD_GP_CTRL_AUTO_ACTIVE_MODE BIT(18) /* Context Data */ #define SCD_CONTEXT_MEM_LOWER_BOUND (SCD_MEM_LOWER_BOUND + 0x600) diff --git a/drivers/net/wireless/iwlwifi/pcie/tx.c b/drivers/net/wireless/iwlwifi/pcie/tx.c index 2b86c2135de3..d711f0b8b62f 100644 --- a/drivers/net/wireless/iwlwifi/pcie/tx.c +++ b/drivers/net/wireless/iwlwifi/pcie/tx.c @@ -915,6 +915,7 @@ int iwl_pcie_tx_init(struct iwl_trans *trans) } } + iwl_set_bits_prph(trans, SCD_GP_CTRL, SCD_GP_CTRL_AUTO_ACTIVE_MODE); if (trans->cfg->base_params->num_of_queues > 20) iwl_set_bits_prph(trans, SCD_GP_CTRL, SCD_GP_CTRL_ENABLE_31_QUEUES);