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authorAlex Malamud <alex.malamud@intel.com>2019-05-22 12:49:18 +0200
committerLuca Coelho <luciano.coelho@intel.com>2019-09-06 14:31:15 +0200
commitaa43ae1216753773ad5c8620c597b1d4cce1b14d (patch)
treed077b4396184ecc01ce250b95d1c3db86ae70db6 /drivers/net/wireless
parentiwlwifi: remove the code under IWLWIFI_PCIE_RTPM (diff)
downloadlinux-aa43ae1216753773ad5c8620c597b1d4cce1b14d.tar.xz
linux-aa43ae1216753773ad5c8620c597b1d4cce1b14d.zip
iwlwifi: LTR updates
New FW versions introduces LTR feature enablement by default. For such FW versions, driver (mvm/xvt) should not send host command to enable LTR feature, also it should be possible to override LTR configuration through the debugfs. 1. Send LTR feature enablement command only for FW versions which does not advertises SET_LTR_GEN2 capability. 2. Implement ltr_config file in debugfs for LTR configuration override. Signed-off-by: Alex Malamud <alex.malamud@intel.com>
Diffstat (limited to 'drivers/net/wireless')
-rw-r--r--drivers/net/wireless/intel/iwlwifi/fw/file.h3
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c37
-rw-r--r--drivers/net/wireless/intel/iwlwifi/mvm/fw.c3
3 files changed, 41 insertions, 2 deletions
diff --git a/drivers/net/wireless/intel/iwlwifi/fw/file.h b/drivers/net/wireless/intel/iwlwifi/fw/file.h
index ea2b3d77f848..418064ced337 100644
--- a/drivers/net/wireless/intel/iwlwifi/fw/file.h
+++ b/drivers/net/wireless/intel/iwlwifi/fw/file.h
@@ -441,9 +441,10 @@ enum iwl_ucode_tlv_capa {
IWL_UCODE_TLV_CAPA_DYNAMIC_QUOTA = (__force iwl_ucode_tlv_capa_t)44,
IWL_UCODE_TLV_CAPA_COEX_SCHEMA_2 = (__force iwl_ucode_tlv_capa_t)45,
IWL_UCODE_TLV_CAPA_CHANNEL_SWITCH_CMD = (__force iwl_ucode_tlv_capa_t)46,
- IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS = (__force iwl_ucode_tlv_capa_t)48,
IWL_UCODE_TLV_CAPA_FTM_CALIBRATED = (__force iwl_ucode_tlv_capa_t)47,
+ IWL_UCODE_TLV_CAPA_ULTRA_HB_CHANNELS = (__force iwl_ucode_tlv_capa_t)48,
IWL_UCODE_TLV_CAPA_CS_MODIFY = (__force iwl_ucode_tlv_capa_t)49,
+ IWL_UCODE_TLV_CAPA_SET_LTR_GEN2 = (__force iwl_ucode_tlv_capa_t)50,
/* set 2 */
IWL_UCODE_TLV_CAPA_EXTENDED_DTS_MEASURE = (__force iwl_ucode_tlv_capa_t)64,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
index 6d67d3da31e0..994a4ba07204 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/debugfs.c
@@ -1758,6 +1758,38 @@ iwl_dbgfs_uapsd_noagg_bssids_read(struct file *file, char __user *user_buf,
return simple_read_from_buffer(user_buf, count, ppos, buf, pos);
}
+static ssize_t
+iwl_dbgfs_ltr_config_write(struct iwl_mvm *mvm,
+ char *buf, size_t count, loff_t *ppos)
+{
+ int ret;
+ struct iwl_ltr_config_cmd ltr_config = {0};
+
+ if (!iwl_mvm_firmware_running(mvm))
+ return -EIO;
+
+ if (sscanf(buf, "%x,%x,%x,%x,%x,%x,%x",
+ &ltr_config.flags,
+ &ltr_config.static_long,
+ &ltr_config.static_short,
+ &ltr_config.ltr_cfg_values[0],
+ &ltr_config.ltr_cfg_values[1],
+ &ltr_config.ltr_cfg_values[2],
+ &ltr_config.ltr_cfg_values[3]) != 7) {
+ return -EINVAL;
+ }
+
+ mutex_lock(&mvm->mutex);
+ ret = iwl_mvm_send_cmd_pdu(mvm, LTR_CONFIG, 0, sizeof(ltr_config),
+ &ltr_config);
+ mutex_unlock(&mvm->mutex);
+
+ if (ret)
+ IWL_ERR(mvm, "failed to send ltr configuration cmd\n");
+
+ return ret ?: count;
+}
+
MVM_DEBUGFS_READ_WRITE_FILE_OPS(prph_reg, 64);
/* Device wide debugfs entries */
@@ -1806,6 +1838,8 @@ MVM_DEBUGFS_READ_WRITE_STA_FILE_OPS(amsdu_len, 16);
MVM_DEBUGFS_READ_WRITE_FILE_OPS(he_sniffer_params, 32);
+MVM_DEBUGFS_WRITE_FILE_OPS(ltr_config, 512);
+
static ssize_t iwl_dbgfs_mem_read(struct file *file, char __user *user_buf,
size_t count, loff_t *ppos)
{
@@ -1993,6 +2027,9 @@ void iwl_mvm_dbgfs_register(struct iwl_mvm *mvm, struct dentry *dbgfs_dir)
#endif
MVM_DEBUGFS_ADD_FILE(he_sniffer_params, mvm->debugfs_dir, 0600);
+ if (fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+ MVM_DEBUGFS_ADD_FILE(ltr_config, mvm->debugfs_dir, 0200);
+
debugfs_create_bool("enable_scan_iteration_notif", 0600,
mvm->debugfs_dir, &mvm->scan_iter_notif_enabled);
debugfs_create_bool("drop_bcn_ap_mode", 0600, mvm->debugfs_dir,
diff --git a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
index 251e7c235aaa..bb2aec9c6738 100644
--- a/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
+++ b/drivers/net/wireless/intel/iwlwifi/mvm/fw.c
@@ -1302,7 +1302,8 @@ int iwl_mvm_up(struct iwl_mvm *mvm)
iwl_mvm_tt_tx_backoff(mvm, 0);
#endif
- WARN_ON(iwl_mvm_config_ltr(mvm));
+ if (!fw_has_capa(&mvm->fw->ucode_capa, IWL_UCODE_TLV_CAPA_SET_LTR_GEN2))
+ WARN_ON(iwl_mvm_config_ltr(mvm));
ret = iwl_mvm_power_update_device(mvm);
if (ret)