iwlwifi: mvm: Enable Rx Checksum hw

TCP software implementation on the host requires extensive computing
power.  Offloading even some of the TCP/IP stack to the NIC might save
a significant overhead. In order to enable this feature on our hw,
we need to configure it first. Once done, we mark this capability,
to be advertised later to the OS via ieee80211_register_hw.
The driver Rx indications for TCP Checksum is integrated within the
standard Rx status. The driver responds to those indications as follows:
If the frame was tested by hw and checksum ok report CHECKSUM_UNNECESSARY.
Otherwise, report CHECKSUM_NONE.

Signed-off-by: Avri Altman <avri.altman@intel.com>
Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>

diff --git a/drivers/net/wireless/iwlwifi/iwl-8000.c b/drivers/net/wireless/iwlwifi/iwl-8000.c
index 0de575124fa2a03c8fb271aaeed5aa4c6e1c1514..7caea69570d47a2485dc9cb607d408507904ed54 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-8000.c
+++ b/drivers/net/wireless/iwlwifi/iwl-8000.c
@@ -154,6 +154,7 @@ static const struct iwl_tt_params iwl8000_tt_params = {
        .led_mode = IWL_LED_RF_STATE,                                   \
        .nvm_hw_section_num = NVM_HW_SECTION_NUM_FAMILY_8000,           \
        .d0i3 = true,                                                   \
+       .features = NETIF_F_RXCSUM,                                     \
        .non_shared_ant = ANT_A,                                        \
        .dccm_offset = IWL8260_DCCM_OFFSET,                             \
        .dccm_len = IWL8260_DCCM_LEN,                                   \

diff --git a/drivers/net/wireless/iwlwifi/iwl-config.h b/drivers/net/wireless/iwlwifi/iwl-config.h
index 08c14afeb1480aca04d61bd083795eb2aec401c2..939fa229c038a1dc6beb4288a4cb7364e1238a40 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-config.h
+++ b/drivers/net/wireless/iwlwifi/iwl-config.h
@@ -297,6 +297,7 @@ struct iwl_pwr_tx_backoff {
  *     mode set
  * @d0i3: device uses d0i3 instead of d3
  * @nvm_hw_section_num: the ID of the HW NVM section
+ * @features: hw features, any combination of feature_whitelist
  * @pwr_tx_backoffs: translation table between power limits and backoffs
  * @max_rx_agg_size: max RX aggregation size of the ADDBA request/response
  * @max_tx_agg_size: max TX aggregation size of the ADDBA request/response
@@ -348,6 +349,7 @@ struct iwl_cfg {
        bool no_power_up_nic_in_init;
        const char *default_nvm_file_B_step;
        const char *default_nvm_file_C_step;
+       netdev_features_t features;
        unsigned int max_rx_agg_size;
        bool disable_dummy_notification;
        unsigned int max_tx_agg_size;

diff --git a/drivers/net/wireless/iwlwifi/iwl-fw-file.h b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
index 884825c705336ee8937bb214a36e81e05e94cb17..926e4568d36c8eac0636340641769f7a6d6d42d9 100644 (file)
--- a/drivers/net/wireless/iwlwifi/iwl-fw-file.h
+++ b/drivers/net/wireless/iwlwifi/iwl-fw-file.h
@@ -297,6 +297,7 @@ typedef unsigned int __bitwise__ iwl_ucode_tlv_capa_t;
  * @IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH: supports TDLS channel switching
  * @IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT: supports Hot Spot Command
  * @IWL_UCODE_TLV_CAPA_DC2DC_SUPPORT: supports DC2DC Command
+ * @IWL_UCODE_TLV_CAPA_CSUM_SUPPORT: supports TCP Checksum Offload
  * @IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS: support radio and beacon statistics
  * @IWL_UCODE_TLV_CAPA_BT_COEX_PLCR: enabled BT Coex packet level co-running
  * @IWL_UCODE_TLV_CAPA_LAR_MULTI_MCC: ucode supports LAR updates with different
@@ -320,6 +321,7 @@ enum iwl_ucode_tlv_capa {
        IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH          = (__force iwl_ucode_tlv_capa_t)13,
        IWL_UCODE_TLV_CAPA_HOTSPOT_SUPPORT              = (__force iwl_ucode_tlv_capa_t)18,
        IWL_UCODE_TLV_CAPA_DC2DC_CONFIG_SUPPORT         = (__force iwl_ucode_tlv_capa_t)19,
+       IWL_UCODE_TLV_CAPA_CSUM_SUPPORT                 = (__force iwl_ucode_tlv_capa_t)21,
        IWL_UCODE_TLV_CAPA_RADIO_BEACON_STATS           = (__force iwl_ucode_tlv_capa_t)22,
        IWL_UCODE_TLV_CAPA_BT_COEX_PLCR                 = (__force iwl_ucode_tlv_capa_t)28,
        IWL_UCODE_TLV_CAPA_LAR_MULTI_MCC                = (__force iwl_ucode_tlv_capa_t)29,

diff --cc drivers/net/wireless/iwlwifi/iwl-prph.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/fw-api.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/fw.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/mac80211.c
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/mvm.h
Simple merge

diff --cc drivers/net/wireless/iwlwifi/mvm/rx.c
Simple merge