540623caa6
The commit below didn't update the max_ht_ampdu_exponent
for the devices listed in iwl-[1-6]000.c which, in result,
became 0 instead of 8K. This reduced the size of the Rx
AMPDU from 64K to 8K which had an impact in the Rx
throughput. One user reported that because of this, his
downstream throughput droppped by a half.
CC: <stable@vger.kernel.org> [3.19]
Fixes: c064ddf318 ("iwlwifi: change max HT and VHT A-MPDU exponent")
Reported-and-tested-by: Valentin Manea <linux-wireless@mrs.ro>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
141 lines
4.6 KiB
C
141 lines
4.6 KiB
C
/******************************************************************************
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*
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* Copyright(c) 2008 - 2014 Intel Corporation. All rights reserved.
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*
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* This program is free software; you can redistribute it and/or modify it
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* under the terms of version 2 of the GNU General Public License as
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* published by the Free Software Foundation.
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*
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* This program is distributed in the hope that it will be useful, but WITHOUT
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* ANY WARRANTY; without even the implied warranty of MERCHANTABILITY or
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* FITNESS FOR A PARTICULAR PURPOSE. See the GNU General Public License for
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* more details.
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*
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* You should have received a copy of the GNU General Public License along with
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* this program; if not, write to the Free Software Foundation, Inc.,
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* 51 Franklin Street, Fifth Floor, Boston, MA 02110, USA
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*
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* The full GNU General Public License is included in this distribution in the
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* file called LICENSE.
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*
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* Contact Information:
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* Intel Linux Wireless <ilw@linux.intel.com>
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* Intel Corporation, 5200 N.E. Elam Young Parkway, Hillsboro, OR 97124-6497
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*
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*****************************************************************************/
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#include <linux/module.h>
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#include <linux/stringify.h>
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#include "iwl-config.h"
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#include "iwl-csr.h"
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#include "iwl-agn-hw.h"
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/* Highest firmware API version supported */
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#define IWL1000_UCODE_API_MAX 5
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#define IWL100_UCODE_API_MAX 5
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/* Oldest version we won't warn about */
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#define IWL1000_UCODE_API_OK 5
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#define IWL100_UCODE_API_OK 5
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/* Lowest firmware API version supported */
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#define IWL1000_UCODE_API_MIN 1
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#define IWL100_UCODE_API_MIN 5
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/* EEPROM version */
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#define EEPROM_1000_TX_POWER_VERSION (4)
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#define EEPROM_1000_EEPROM_VERSION (0x15C)
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#define IWL1000_FW_PRE "iwlwifi-1000-"
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#define IWL1000_MODULE_FIRMWARE(api) IWL1000_FW_PRE __stringify(api) ".ucode"
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#define IWL100_FW_PRE "iwlwifi-100-"
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#define IWL100_MODULE_FIRMWARE(api) IWL100_FW_PRE __stringify(api) ".ucode"
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static const struct iwl_base_params iwl1000_base_params = {
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.num_of_queues = IWLAGN_NUM_QUEUES,
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.eeprom_size = OTP_LOW_IMAGE_SIZE,
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.pll_cfg_val = CSR50_ANA_PLL_CFG_VAL,
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.max_ll_items = OTP_MAX_LL_ITEMS_1000,
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.shadow_ram_support = false,
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.led_compensation = 51,
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.wd_timeout = IWL_WATCHDOG_DISABLED,
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.max_event_log_size = 128,
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.scd_chain_ext_wa = true,
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};
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static const struct iwl_ht_params iwl1000_ht_params = {
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.ht_greenfield_support = true,
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.use_rts_for_aggregation = true, /* use rts/cts protection */
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.ht40_bands = BIT(IEEE80211_BAND_2GHZ),
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};
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static const struct iwl_eeprom_params iwl1000_eeprom_params = {
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.regulatory_bands = {
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EEPROM_REG_BAND_1_CHANNELS,
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EEPROM_REG_BAND_2_CHANNELS,
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EEPROM_REG_BAND_3_CHANNELS,
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EEPROM_REG_BAND_4_CHANNELS,
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EEPROM_REG_BAND_5_CHANNELS,
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EEPROM_REG_BAND_24_HT40_CHANNELS,
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EEPROM_REGULATORY_BAND_NO_HT40,
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}
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};
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#define IWL_DEVICE_1000 \
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.fw_name_pre = IWL1000_FW_PRE, \
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.ucode_api_max = IWL1000_UCODE_API_MAX, \
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.ucode_api_ok = IWL1000_UCODE_API_OK, \
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.ucode_api_min = IWL1000_UCODE_API_MIN, \
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.device_family = IWL_DEVICE_FAMILY_1000, \
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.max_inst_size = IWLAGN_RTC_INST_SIZE, \
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.max_data_size = IWLAGN_RTC_DATA_SIZE, \
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.nvm_ver = EEPROM_1000_EEPROM_VERSION, \
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.nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
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.base_params = &iwl1000_base_params, \
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.eeprom_params = &iwl1000_eeprom_params, \
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.led_mode = IWL_LED_BLINK, \
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.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
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const struct iwl_cfg iwl1000_bgn_cfg = {
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.name = "Intel(R) Centrino(R) Wireless-N 1000 BGN",
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IWL_DEVICE_1000,
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.ht_params = &iwl1000_ht_params,
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};
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const struct iwl_cfg iwl1000_bg_cfg = {
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.name = "Intel(R) Centrino(R) Wireless-N 1000 BG",
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IWL_DEVICE_1000,
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};
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#define IWL_DEVICE_100 \
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.fw_name_pre = IWL100_FW_PRE, \
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.ucode_api_max = IWL100_UCODE_API_MAX, \
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.ucode_api_ok = IWL100_UCODE_API_OK, \
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.ucode_api_min = IWL100_UCODE_API_MIN, \
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.device_family = IWL_DEVICE_FAMILY_100, \
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.max_inst_size = IWLAGN_RTC_INST_SIZE, \
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.max_data_size = IWLAGN_RTC_DATA_SIZE, \
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.nvm_ver = EEPROM_1000_EEPROM_VERSION, \
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.nvm_calib_ver = EEPROM_1000_TX_POWER_VERSION, \
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.base_params = &iwl1000_base_params, \
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.eeprom_params = &iwl1000_eeprom_params, \
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.led_mode = IWL_LED_RF_STATE, \
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.rx_with_siso_diversity = true, \
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.max_ht_ampdu_exponent = IEEE80211_HT_MAX_AMPDU_64K
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const struct iwl_cfg iwl100_bgn_cfg = {
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.name = "Intel(R) Centrino(R) Wireless-N 100 BGN",
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IWL_DEVICE_100,
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.ht_params = &iwl1000_ht_params,
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};
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const struct iwl_cfg iwl100_bg_cfg = {
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.name = "Intel(R) Centrino(R) Wireless-N 100 BG",
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IWL_DEVICE_100,
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};
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MODULE_FIRMWARE(IWL1000_MODULE_FIRMWARE(IWL1000_UCODE_API_OK));
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MODULE_FIRMWARE(IWL100_MODULE_FIRMWARE(IWL100_UCODE_API_OK));
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