aboutsummaryrefslogtreecommitdiffstats
path: root/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/intel/iwlwifi/mvm/ops.c')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/ops.c266
1 files changed, 234 insertions, 32 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
index 232ad531d612..87630d38dc52 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/ops.c
@@ -5,6 +5,7 @@
* Copyright (C) 2016-2017 Intel Deutschland GmbH
*/
#include <linux/module.h>
+#include <linux/rtnetlink.h>
#include <linux/vmalloc.h>
#include <net/mac80211.h>
@@ -26,6 +27,7 @@
#include "time-event.h"
#include "fw-api.h"
#include "fw/acpi.h"
+#include "fw/uefi.h"
#define DRV_DESCRIPTION "The new Intel(R) wireless AGN driver for Linux"
MODULE_DESCRIPTION(DRV_DESCRIPTION);
@@ -78,7 +80,7 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
u8 radio_cfg_type, radio_cfg_step, radio_cfg_dash;
- u32 reg_val = 0;
+ u32 reg_val;
u32 phy_config = iwl_mvm_get_phy_config(mvm);
radio_cfg_type = (phy_config & FW_PHY_CFG_RADIO_TYPE) >>
@@ -89,10 +91,7 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
FW_PHY_CFG_RADIO_DASH_POS;
/* SKU control */
- reg_val |= CSR_HW_REV_STEP(mvm->trans->hw_rev) <<
- CSR_HW_IF_CONFIG_REG_POS_MAC_STEP;
- reg_val |= CSR_HW_REV_DASH(mvm->trans->hw_rev) <<
- CSR_HW_IF_CONFIG_REG_POS_MAC_DASH;
+ reg_val = CSR_HW_REV_STEP_DASH(mvm->trans->hw_rev);
/* radio configuration */
reg_val |= radio_cfg_type << CSR_HW_IF_CONFIG_REG_POS_PHY_TYPE;
@@ -117,8 +116,7 @@ static void iwl_mvm_nic_config(struct iwl_op_mode *op_mode)
reg_val |= CSR_HW_IF_CONFIG_REG_D3_DEBUG;
iwl_trans_set_bits_mask(mvm->trans, CSR_HW_IF_CONFIG_REG,
- CSR_HW_IF_CONFIG_REG_MSK_MAC_DASH |
- CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP |
+ CSR_HW_IF_CONFIG_REG_MSK_MAC_STEP_DASH |
CSR_HW_IF_CONFIG_REG_MSK_PHY_TYPE |
CSR_HW_IF_CONFIG_REG_MSK_PHY_STEP |
CSR_HW_IF_CONFIG_REG_MSK_PHY_DASH |
@@ -260,6 +258,7 @@ enum iwl_rx_handler_context {
/**
* struct iwl_rx_handlers handler for FW notification
* @cmd_id: command id
+ * @min_size: minimum size to expect for the notification
* @context: see &iwl_rx_handler_context
* @fn: the function is called when notification is received
*/
@@ -334,9 +333,6 @@ static const struct iwl_rx_handlers iwl_mvm_rx_handlers[] = {
iwl_mvm_rx_umac_scan_iter_complete_notif, RX_HANDLER_SYNC,
struct iwl_umac_scan_iter_complete_notif),
- RX_HANDLER(CARD_STATE_NOTIFICATION, iwl_mvm_rx_card_state_notif,
- RX_HANDLER_SYNC, struct iwl_card_state_notif),
-
RX_HANDLER(MISSED_BEACONS_NOTIFICATION, iwl_mvm_rx_missed_beacons_notif,
RX_HANDLER_SYNC, struct iwl_missed_beacons_notif),
@@ -457,7 +453,6 @@ static const struct iwl_hcmd_names iwl_mvm_legacy_names[] = {
HCMD_NAME(STATISTICS_NOTIFICATION),
HCMD_NAME(EOSP_NOTIFICATION),
HCMD_NAME(REDUCE_TX_POWER_CMD),
- HCMD_NAME(CARD_STATE_NOTIFICATION),
HCMD_NAME(MISSED_BEACONS_NOTIFICATION),
HCMD_NAME(TDLS_CONFIG_CMD),
HCMD_NAME(MAC_PM_POWER_TABLE),
@@ -502,6 +497,9 @@ static const struct iwl_hcmd_names iwl_mvm_system_names[] = {
HCMD_NAME(SHARED_MEM_CFG_CMD),
HCMD_NAME(INIT_EXTENDED_CFG_CMD),
HCMD_NAME(FW_ERROR_RECOVERY_CMD),
+ HCMD_NAME(RFI_CONFIG_CMD),
+ HCMD_NAME(RFI_GET_FREQ_TABLE_CMD),
+ HCMD_NAME(SYSTEM_FEATURES_CONTROL_CMD),
};
/* Please keep this array *SORTED* by hex value.
@@ -534,6 +532,7 @@ static const struct iwl_hcmd_names iwl_mvm_data_path_names[] = {
HCMD_NAME(UPDATE_MU_GROUPS_CMD),
HCMD_NAME(TRIGGER_RX_QUEUES_NOTIF_CMD),
HCMD_NAME(STA_HE_CTXT_CMD),
+ HCMD_NAME(RLC_CONFIG_CMD),
HCMD_NAME(RFH_QUEUE_CONFIG_CMD),
HCMD_NAME(TLC_MNG_CONFIG_CMD),
HCMD_NAME(CHEST_COLLECTOR_FILTER_CONFIG_CMD),
@@ -683,13 +682,45 @@ static const struct iwl_fw_runtime_ops iwl_mvm_fwrt_ops = {
static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
{
+ struct iwl_trans *trans = mvm->trans;
int ret;
+ if (trans->csme_own) {
+ if (WARN(!mvm->mei_registered,
+ "csme is owner, but we aren't registered to iwlmei\n"))
+ goto get_nvm_from_fw;
+
+ mvm->mei_nvm_data = iwl_mei_get_nvm();
+ if (mvm->mei_nvm_data) {
+ /*
+ * mvm->mei_nvm_data is set and because of that,
+ * we'll load the NVM from the FW when we'll get
+ * ownership.
+ */
+ mvm->nvm_data =
+ iwl_parse_mei_nvm_data(trans, trans->cfg,
+ mvm->mei_nvm_data, mvm->fw);
+ return 0;
+ }
+
+ IWL_ERR(mvm,
+ "Got a NULL NVM from CSME, trying to get it from the device\n");
+ }
+
+get_nvm_from_fw:
rtnl_lock();
+ wiphy_lock(mvm->hw->wiphy);
mutex_lock(&mvm->mutex);
- ret = iwl_run_init_mvm_ucode(mvm);
+ ret = iwl_trans_start_hw(mvm->trans);
+ if (ret) {
+ mutex_unlock(&mvm->mutex);
+ wiphy_unlock(mvm->hw->wiphy);
+ rtnl_unlock();
+ return ret;
+ }
+ ret = iwl_run_init_mvm_ucode(mvm);
if (ret && ret != -ERFKILL)
iwl_fw_dbg_error_collect(&mvm->fwrt, FW_DBG_TRIGGER_DRIVER);
if (!ret && iwl_mvm_is_lar_supported(mvm)) {
@@ -701,9 +732,10 @@ 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)
+ if (ret)
IWL_ERR(mvm, "Failed to run INIT ucode: %d\n", ret);
return ret;
@@ -711,6 +743,7 @@ static int iwl_mvm_start_get_nvm(struct iwl_mvm *mvm)
static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
{
+ struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
int ret;
iwl_mvm_toggle_tx_ant(mvm, &mvm->mgmt_last_antenna_idx);
@@ -718,10 +751,17 @@ static int iwl_mvm_start_post_nvm(struct iwl_mvm *mvm)
ret = iwl_mvm_mac_setup_register(mvm);
if (ret)
return ret;
+
mvm->hw_registered = true;
iwl_mvm_dbgfs_register(mvm);
+ wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
+ mvm->mei_rfkill_blocked,
+ RFKILL_HARD_BLOCK_NOT_OWNER);
+
+ iwl_mvm_mei_set_sw_rfkill_state(mvm);
+
return 0;
}
@@ -902,6 +942,109 @@ static const struct iwl_dump_sanitize_ops iwl_mvm_sanitize_ops = {
.frob_mem = iwl_mvm_frob_mem,
};
+static void iwl_mvm_me_conn_status(void *priv, const struct iwl_mei_conn_info *conn_info)
+{
+ struct iwl_mvm *mvm = priv;
+ struct iwl_mvm_csme_conn_info *prev_conn_info, *curr_conn_info;
+
+ /*
+ * This is protected by the guarantee that this function will not be
+ * called twice on two different threads
+ */
+ prev_conn_info = rcu_dereference_protected(mvm->csme_conn_info, true);
+
+ curr_conn_info = kzalloc(sizeof(*curr_conn_info), GFP_KERNEL);
+ if (!curr_conn_info)
+ return;
+
+ curr_conn_info->conn_info = *conn_info;
+
+ rcu_assign_pointer(mvm->csme_conn_info, curr_conn_info);
+
+ if (prev_conn_info)
+ kfree_rcu(prev_conn_info, rcu_head);
+}
+
+static void iwl_mvm_mei_rfkill(void *priv, bool blocked)
+{
+ struct iwl_mvm *mvm = priv;
+
+ mvm->mei_rfkill_blocked = blocked;
+ if (!mvm->hw_registered)
+ return;
+
+ wiphy_rfkill_set_hw_state_reason(mvm->hw->wiphy,
+ mvm->mei_rfkill_blocked,
+ RFKILL_HARD_BLOCK_NOT_OWNER);
+}
+
+static void iwl_mvm_mei_roaming_forbidden(void *priv, bool forbidden)
+{
+ struct iwl_mvm *mvm = priv;
+
+ if (!mvm->hw_registered || !mvm->csme_vif)
+ return;
+
+ iwl_mvm_send_roaming_forbidden_event(mvm, mvm->csme_vif, forbidden);
+}
+
+static void iwl_mvm_sap_connected_wk(struct work_struct *wk)
+{
+ struct iwl_mvm *mvm =
+ container_of(wk, struct iwl_mvm, sap_connected_wk);
+ int ret;
+
+ ret = iwl_mvm_start_get_nvm(mvm);
+ if (ret)
+ goto out_free;
+
+ ret = iwl_mvm_start_post_nvm(mvm);
+ if (ret)
+ goto out_free;
+
+ return;
+
+out_free:
+ IWL_ERR(mvm, "Couldn't get started...\n");
+ iwl_mei_start_unregister();
+ iwl_mei_unregister_complete();
+ iwl_fw_flush_dumps(&mvm->fwrt);
+ iwl_mvm_thermal_exit(mvm);
+ iwl_fw_runtime_free(&mvm->fwrt);
+ iwl_phy_db_free(mvm->phy_db);
+ kfree(mvm->scan_cmd);
+ iwl_trans_op_mode_leave(mvm->trans);
+ kfree(mvm->nvm_data);
+ kfree(mvm->mei_nvm_data);
+
+ ieee80211_free_hw(mvm->hw);
+}
+
+static void iwl_mvm_mei_sap_connected(void *priv)
+{
+ struct iwl_mvm *mvm = priv;
+
+ if (!mvm->hw_registered)
+ schedule_work(&mvm->sap_connected_wk);
+}
+
+static void iwl_mvm_mei_nic_stolen(void *priv)
+{
+ struct iwl_mvm *mvm = priv;
+
+ rtnl_lock();
+ cfg80211_shutdown_all_interfaces(mvm->hw->wiphy);
+ rtnl_unlock();
+}
+
+static const struct iwl_mei_ops mei_ops = {
+ .me_conn_status = iwl_mvm_me_conn_status,
+ .rfkill = iwl_mvm_mei_rfkill,
+ .roaming_forbidden = iwl_mvm_mei_roaming_forbidden,
+ .sap_connected = iwl_mvm_mei_sap_connected,
+ .nic_stolen = iwl_mvm_mei_nic_stolen,
+};
+
static struct iwl_op_mode *
iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
const struct iwl_fw *fw, struct dentry *dbgfs_dir)
@@ -913,9 +1056,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
static const u8 no_reclaim_cmds[] = {
TX_CMD,
};
- int err, scan_size;
+ int scan_size;
u32 min_backoff;
- enum iwl_amsdu_size rb_size_default;
+ struct iwl_mvm_csme_conn_info *csme_conn_info __maybe_unused;
/*
* We use IWL_MVM_STATION_COUNT_MAX to check the validity of the station
@@ -954,6 +1097,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
&iwl_mvm_sanitize_ops, mvm, dbgfs_dir);
iwl_mvm_get_acpi_tables(mvm);
+ iwl_uefi_get_sgom_table(trans, &mvm->fwrt);
mvm->init_status = 0;
@@ -1015,6 +1159,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
INIT_WORK(&mvm->async_handlers_wk, iwl_mvm_async_handlers_wk);
INIT_WORK(&mvm->roc_done_wk, iwl_mvm_roc_done_wk);
+ INIT_WORK(&mvm->sap_connected_wk, iwl_mvm_sap_connected_wk);
INIT_DELAYED_WORK(&mvm->tdls_cs.dwork, iwl_mvm_tdls_ch_switch_work);
INIT_DELAYED_WORK(&mvm->scan_timeout_dwork, iwl_mvm_scan_timeout_wk);
INIT_WORK(&mvm->add_stream_wk, iwl_mvm_add_new_dqa_stream_wk);
@@ -1056,14 +1201,9 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
trans_cfg.no_reclaim_cmds = no_reclaim_cmds;
trans_cfg.n_no_reclaim_cmds = ARRAY_SIZE(no_reclaim_cmds);
- if (mvm->trans->trans_cfg->device_family >= IWL_DEVICE_FAMILY_AX210)
- rb_size_default = IWL_AMSDU_2K;
- else
- rb_size_default = IWL_AMSDU_4K;
-
switch (iwlwifi_mod_params.amsdu_size) {
case IWL_AMSDU_DEF:
- trans_cfg.rx_buf_size = rb_size_default;
+ trans_cfg.rx_buf_size = IWL_AMSDU_4K;
break;
case IWL_AMSDU_4K:
trans_cfg.rx_buf_size = IWL_AMSDU_4K;
@@ -1077,7 +1217,7 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
default:
pr_err("%s: Unsupported amsdu_size: %d\n", KBUILD_MODNAME,
iwlwifi_mod_params.amsdu_size);
- trans_cfg.rx_buf_size = rb_size_default;
+ trans_cfg.rx_buf_size = IWL_AMSDU_4K;
}
trans->wide_cmd_header = true;
@@ -1137,10 +1277,6 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
IWL_DEBUG_EEPROM(mvm->trans->dev,
"working without external nvm file\n");
- err = iwl_trans_start_hw(mvm->trans);
- if (err)
- goto out_free;
-
scan_size = iwl_mvm_scan_size(mvm);
mvm->scan_cmd = kmalloc(scan_size, GFP_KERNEL);
@@ -1165,8 +1301,20 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
mvm->debugfs_dir = dbgfs_dir;
- if (iwl_mvm_start_get_nvm(mvm))
+ mvm->mei_registered = !iwl_mei_register(mvm, &mei_ops);
+
+ if (iwl_mvm_start_get_nvm(mvm)) {
+ /*
+ * Getting NVM failed while CSME is the owner, but we are
+ * registered to MEI, we'll get the NVM later when it'll be
+ * possible to get it from CSME.
+ */
+ if (trans->csme_own && mvm->mei_registered)
+ return op_mode;
+
goto out_thermal_exit;
+ }
+
if (iwl_mvm_start_post_nvm(mvm))
goto out_thermal_exit;
@@ -1175,6 +1323,10 @@ iwl_op_mode_mvm_start(struct iwl_trans *trans, const struct iwl_cfg *cfg,
out_thermal_exit:
iwl_mvm_thermal_exit(mvm);
+ if (mvm->mei_registered) {
+ iwl_mei_start_unregister();
+ iwl_mei_unregister_complete();
+ }
out_free:
iwl_fw_flush_dumps(&mvm->fwrt);
iwl_fw_runtime_free(&mvm->fwrt);
@@ -1201,6 +1353,7 @@ void iwl_mvm_stop_device(struct iwl_mvm *mvm)
iwl_trans_stop_device(mvm->trans);
iwl_free_fw_paging(&mvm->fwrt);
iwl_fw_dump_conf_clear(&mvm->fwrt);
+ iwl_mvm_mei_device_down(mvm);
}
static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
@@ -1208,11 +1361,33 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
int i;
+ if (mvm->mei_registered) {
+ rtnl_lock();
+ iwl_mei_set_netdev(NULL);
+ rtnl_unlock();
+ iwl_mei_start_unregister();
+ }
+
+ /*
+ * After we unregister from mei, the worker can't be scheduled
+ * anymore.
+ */
+ cancel_work_sync(&mvm->sap_connected_wk);
+
iwl_mvm_leds_exit(mvm);
iwl_mvm_thermal_exit(mvm);
- ieee80211_unregister_hw(mvm->hw);
+ /*
+ * If we couldn't get ownership on the device and we couldn't
+ * get the NVM from CSME, we haven't registered to mac80211.
+ * In that case, we didn't fail op_mode_start, because we are
+ * waiting for CSME to allow us to get the NVM to register to
+ * mac80211. If that didn't happen, we haven't registered to
+ * mac80211, hence the if below.
+ */
+ if (mvm->hw_registered)
+ ieee80211_unregister_hw(mvm->hw);
kfree(mvm->scan_cmd);
kfree(mvm->mcast_filter_cmd);
@@ -1227,6 +1402,9 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
mvm->phy_db = NULL;
kfree(mvm->nvm_data);
+ kfree(mvm->mei_nvm_data);
+ kfree(rcu_access_pointer(mvm->csme_conn_info));
+ kfree(mvm->temp_nvm_data);
for (i = 0; i < NVM_MAX_NUM_SECTIONS; i++)
kfree(mvm->nvm_sections[i].data);
@@ -1235,6 +1413,9 @@ static void iwl_op_mode_mvm_stop(struct iwl_op_mode *op_mode)
iwl_fw_runtime_free(&mvm->fwrt);
mutex_destroy(&mvm->mutex);
+ if (mvm->mei_registered)
+ iwl_mei_unregister_complete();
+
ieee80211_free_hw(mvm->hw);
}
@@ -1517,6 +1698,12 @@ void iwl_mvm_set_hw_ctkill_state(struct iwl_mvm *mvm, bool state)
iwl_mvm_set_rfkill_state(mvm);
}
+struct iwl_mvm_csme_conn_info *iwl_mvm_get_csme_conn_info(struct iwl_mvm *mvm)
+{
+ return rcu_dereference_protected(mvm->csme_conn_info,
+ lockdep_is_held(&mvm->mutex));
+}
+
static bool iwl_mvm_set_hw_rfkill_state(struct iwl_op_mode *op_mode, bool state)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
@@ -1600,6 +1787,9 @@ 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;
@@ -1652,9 +1842,16 @@ void iwl_mvm_nic_restart(struct iwl_mvm *mvm, bool fw_error)
iwl_fw_error_collect(&mvm->fwrt, false);
- if (fw_error && mvm->fw_restart > 0)
+ if (fw_error && mvm->fw_restart > 0) {
mvm->fw_restart--;
- ieee80211_restart_hw(mvm->hw);
+ ieee80211_restart_hw(mvm->hw);
+ } else if (mvm->fwrt.trans->dbg.restart_required) {
+ IWL_DEBUG_INFO(mvm, "FW restart requested after debug collection\n");
+ mvm->fwrt.trans->dbg.restart_required = FALSE;
+ ieee80211_restart_hw(mvm->hw);
+ } else if (mvm->trans->trans_cfg->device_family <= IWL_DEVICE_FAMILY_8000) {
+ ieee80211_restart_hw(mvm->hw);
+ }
}
}
@@ -1662,7 +1859,9 @@ static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
{
struct iwl_mvm *mvm = IWL_OP_MODE_GET_MVM(op_mode);
- if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status))
+ if (!test_bit(STATUS_TRANS_DEAD, &mvm->trans->status) &&
+ !test_and_clear_bit(IWL_MVM_STATUS_SUPPRESS_ERROR_LOG_ONCE,
+ &mvm->status))
iwl_mvm_dump_nic_error_log(mvm);
if (sync) {
@@ -1683,7 +1882,7 @@ static void iwl_mvm_nic_error(struct iwl_op_mode *op_mode, bool sync)
if (!test_bit(IWL_MVM_STATUS_FIRMWARE_RUNNING, &mvm->status))
return;
- iwl_mvm_nic_restart(mvm, true);
+ iwl_mvm_nic_restart(mvm, false);
}
static void iwl_mvm_cmd_queue_full(struct iwl_op_mode *op_mode)
@@ -1732,6 +1931,9 @@ static void iwl_mvm_rx_mq_rss(struct iwl_op_mode *op_mode,
struct iwl_rx_packet *pkt = rxb_addr(rxb);
u16 cmd = WIDE_ID(pkt->hdr.group_id, pkt->hdr.cmd);
+ if (unlikely(queue >= mvm->trans->num_rx_queues))
+ return;
+
if (unlikely(cmd == WIDE_ID(LEGACY_GROUP, FRAME_RELEASE)))
iwl_mvm_rx_frame_release(mvm, napi, rxb, queue);
else if (unlikely(cmd == WIDE_ID(DATA_PATH_GROUP,