diff options
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi')
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/fw/uefi.c | 6 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-drv.c | 22 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/iwl-drv.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c | 24 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/mvm.h | 3 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/mvm/ops.c | 5 | ||||
| -rw-r--r-- | drivers/net/wireless/intel/iwlwifi/pcie/drv.c | 10 |
7 files changed, 63 insertions, 10 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c index c875bf35533c..009dd4be597b 100644 --- a/drivers/net/wireless/intel/iwlwifi/fw/uefi.c +++ b/drivers/net/wireless/intel/iwlwifi/fw/uefi.c @@ -86,6 +86,7 @@ static void *iwl_uefi_reduce_power_section(struct iwl_trans *trans, if (len < tlv_len) { IWL_ERR(trans, "invalid TLV len: %zd/%u\n", len, tlv_len); + kfree(reduce_power_data); reduce_power_data = ERR_PTR(-EINVAL); goto out; } @@ -105,6 +106,7 @@ static void *iwl_uefi_reduce_power_section(struct iwl_trans *trans, IWL_DEBUG_FW(trans, "Couldn't allocate (more) reduce_power_data\n"); + kfree(reduce_power_data); reduce_power_data = ERR_PTR(-ENOMEM); goto out; } @@ -134,6 +136,10 @@ static void *iwl_uefi_reduce_power_section(struct iwl_trans *trans, done: if (!size) { IWL_DEBUG_FW(trans, "Empty REDUCE_POWER, skipping.\n"); + /* Better safe than sorry, but 'reduce_power_data' should + * always be NULL if !size. + */ + kfree(reduce_power_data); reduce_power_data = ERR_PTR(-ENOENT); goto out; } diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c index 36196e07b1a0..5cec467b995b 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.c +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.c @@ -1313,23 +1313,31 @@ _iwl_op_mode_start(struct iwl_drv *drv, struct iwlwifi_opmode_table *op) const struct iwl_op_mode_ops *ops = op->ops; struct dentry *dbgfs_dir = NULL; struct iwl_op_mode *op_mode = NULL; + int retry, max_retry = !!iwlwifi_mod_params.fw_restart * IWL_MAX_INIT_RETRY; + + for (retry = 0; retry <= max_retry; retry++) { #ifdef CONFIG_IWLWIFI_DEBUGFS - drv->dbgfs_op_mode = debugfs_create_dir(op->name, - drv->dbgfs_drv); - dbgfs_dir = drv->dbgfs_op_mode; + drv->dbgfs_op_mode = debugfs_create_dir(op->name, + drv->dbgfs_drv); + dbgfs_dir = drv->dbgfs_op_mode; #endif - op_mode = ops->start(drv->trans, drv->trans->cfg, &drv->fw, dbgfs_dir); + op_mode = ops->start(drv->trans, drv->trans->cfg, + &drv->fw, dbgfs_dir); + + if (op_mode) + return op_mode; + + IWL_ERR(drv, "retry init count %d\n", retry); #ifdef CONFIG_IWLWIFI_DEBUGFS - if (!op_mode) { debugfs_remove_recursive(drv->dbgfs_op_mode); drv->dbgfs_op_mode = NULL; - } #endif + } - return op_mode; + return NULL; } static void _iwl_op_mode_stop(struct iwl_drv *drv) diff --git a/drivers/net/wireless/intel/iwlwifi/iwl-drv.h b/drivers/net/wireless/intel/iwlwifi/iwl-drv.h index 2e2d60a58692..0fd009e6d685 100644 --- a/drivers/net/wireless/intel/iwlwifi/iwl-drv.h +++ b/drivers/net/wireless/intel/iwlwifi/iwl-drv.h @@ -89,4 +89,7 @@ void iwl_drv_stop(struct iwl_drv *drv); #define IWL_EXPORT_SYMBOL(sym) #endif +/* max retry for init flow */ +#define IWL_MAX_INIT_RETRY 2 + #endif /* __iwl_drv_h__ */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c index 9fb9c7dad314..897e3b91ddb2 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mac80211.c @@ -16,6 +16,7 @@ #include <net/ieee80211_radiotap.h> #include <net/tcp.h> +#include "iwl-drv.h" #include "iwl-op-mode.h" #include "iwl-io.h" #include "mvm.h" @@ -1117,9 +1118,30 @@ static int iwl_mvm_mac_start(struct ieee80211_hw *hw) { struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw); int ret; + int retry, max_retry = 0; mutex_lock(&mvm->mutex); - ret = __iwl_mvm_mac_start(mvm); + + /* we are starting the mac not in error flow, and restart is enabled */ + if (!test_bit(IWL_MVM_STATUS_HW_RESTART_REQUESTED, &mvm->status) && + iwlwifi_mod_params.fw_restart) { + max_retry = IWL_MAX_INIT_RETRY; + /* + * This will prevent mac80211 recovery flows to trigger during + * init failures + */ + set_bit(IWL_MVM_STATUS_STARTING, &mvm->status); + } + + for (retry = 0; retry <= max_retry; retry++) { + ret = __iwl_mvm_mac_start(mvm); + if (!ret) + break; + + IWL_ERR(mvm, "mac start retry %d\n", retry); + } + clear_bit(IWL_MVM_STATUS_STARTING, &mvm->status); + mutex_unlock(&mvm->mutex); return ret; diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h index 2b1dcd60e00f..a72d85086fe3 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h +++ b/drivers/net/wireless/intel/iwlwifi/mvm/mvm.h @@ -1123,6 +1123,8 @@ struct iwl_mvm { * @IWL_MVM_STATUS_FIRMWARE_RUNNING: firmware is running * @IWL_MVM_STATUS_NEED_FLUSH_P2P: need to flush P2P bcast STA * @IWL_MVM_STATUS_IN_D3: in D3 (or at least about to go into it) + * @IWL_MVM_STATUS_STARTING: starting mac, + * used to disable restart flow while in STARTING state */ enum iwl_mvm_status { IWL_MVM_STATUS_HW_RFKILL, @@ -1134,6 +1136,7 @@ enum iwl_mvm_status { IWL_MVM_STATUS_FIRMWARE_RUNNING, IWL_MVM_STATUS_NEED_FLUSH_P2P, IWL_MVM_STATUS_IN_D3, + IWL_MVM_STATUS_STARTING, }; /* Keep track of completed init configuration */ diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c index 232ad531d612..cd08e289cd9a 100644 --- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c +++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c @@ -686,6 +686,7 @@ static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) int ret; rtnl_lock(); + wiphy_lock(mvm->hw->wiphy); mutex_lock(&mvm->mutex); ret = iwl_run_init_mvm_ucode(mvm); @@ -701,6 +702,7 @@ static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm) iwl_mvm_stop_device(mvm); mutex_unlock(&mvm->mutex); + wiphy_unlock(mvm->hw->wiphy); rtnl_unlock(); if (ret < 0) @@ -1600,6 +1602,9 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error) */ if (!mvm->fw_restart && fw_error) { iwl_fw_error_collect(&mvm->fwrt, false); + } else if (test_bit(IWL_MVM_STATUS_STARTING, + &mvm->status)) { + IWL_ERR(mvm, "Starting mac, retry will be triggered anyway\n"); } else if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) { struct iwl_mvm_reprobe *reprobe; diff --git a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c index c574f041f096..5ce07f28e7c3 100644 --- a/drivers/net/wireless/intel/iwlwifi/pcie/drv.c +++ b/drivers/net/wireless/intel/iwlwifi/pcie/drv.c @@ -1339,9 +1339,13 @@ iwl_pci_find_dev_info(u16 device, u16 subsystem_device, u16 mac_type, u8 mac_step, u16 rf_type, u8 cdb, u8 rf_id, u8 no_160, u8 cores) { + int num_devices = ARRAY_SIZE(iwl_dev_info_table); int i; - for (i = ARRAY_SIZE(iwl_dev_info_table) - 1; i >= 0; i--) { + if (!num_devices) + return NULL; + + for (i = num_devices - 1; i >= 0; i--) { const struct iwl_dev_info *dev_info = &iwl_dev_info_table[i]; if (dev_info->device != (u16)IWL_CFG_ANY && @@ -1442,8 +1446,10 @@ static int iwl_pci_probe(struct pci_dev *pdev, const struct pci_device_id *ent) */ if (iwl_trans->trans_cfg->rf_id && iwl_trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_9000 && - !CSR_HW_RFID_TYPE(iwl_trans->hw_rf_id) && get_crf_id(iwl_trans)) + !CSR_HW_RFID_TYPE(iwl_trans->hw_rf_id) && get_crf_id(iwl_trans)) { + ret = -EINVAL; goto out_free_trans; + } dev_info = iwl_pci_find_dev_info(pdev->device, pdev->subsystem_device, CSR_HW_REV_TYPE(iwl_trans->hw_rev), |