| /* |
| * Copyright (c) 2012-2017 The Linux Foundation. All rights reserved. |
| * |
| * Previously licensed under the ISC license by Qualcomm Atheros, Inc. |
| * |
| * |
| * Permission to use, copy, modify, and/or distribute this software for |
| * any purpose with or without fee is hereby granted, provided that the |
| * above copyright notice and this permission notice appear in all |
| * copies. |
| * |
| * THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL |
| * WARRANTIES WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED |
| * WARRANTIES OF MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE |
| * AUTHOR BE LIABLE FOR ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL |
| * DAMAGES OR ANY DAMAGES WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR |
| * PROFITS, WHETHER IN AN ACTION OF CONTRACT, NEGLIGENCE OR OTHER |
| * TORTIOUS ACTION, ARISING OUT OF OR IN CONNECTION WITH THE USE OR |
| * PERFORMANCE OF THIS SOFTWARE. |
| */ |
| |
| /* |
| * This file was originally distributed by Qualcomm Atheros, Inc. |
| * under proprietary terms before Copyright ownership was assigned |
| * to the Linux Foundation. |
| */ |
| |
| #ifndef _WLAN_HDD_WMM_H |
| #define _WLAN_HDD_WMM_H |
| /*============================================================================ |
| @file wlan_hdd_wmm.h |
| |
| This module (wlan_hdd_wmm.h interface + wlan_hdd_wmm.c implementation) |
| houses all the logic for WMM in HDD. |
| |
| On the control path, it has the logic to setup QoS, modify QoS and delete |
| QoS (QoS here refers to a TSPEC). The setup QoS comes in two flavors: an |
| explicit application invoked and an internal HDD invoked. The implicit QoS |
| is for applications that do NOT call the custom QCT WLAN OIDs for QoS but |
| which DO mark their traffic for priortization. It also has logic to start, |
| update and stop the U-APSD trigger frame generation. It also has logic to |
| read WMM related config parameters from the registry. |
| |
| On the data path, it has the logic to figure out the WMM AC of an egress |
| packet and when to signal TL to serve a particular AC queue. It also has the |
| logic to retrieve a packet based on WMM priority in response to a fetch from |
| TL. |
| |
| The remaining functions are utility functions for information hiding. |
| ============================================================================*/ |
| /* $Header$ */ |
| |
| /*---------------------------------------------------------------------------- |
| * Include Files |
| * -------------------------------------------------------------------------*/ |
| #include <linux/workqueue.h> |
| #include <linux/list.h> |
| #include <wlan_hdd_main.h> |
| #include <wlan_hdd_wext.h> |
| #include <wlan_qct_tl.h> |
| #include <sme_QosApi.h> |
| |
| /*---------------------------------------------------------------------------- |
| * Preprocessor Definitions and Constants |
| * -------------------------------------------------------------------------*/ |
| |
| // #define HDD_WMM_DEBUG 1 |
| |
| #define HDD_WMM_CTX_MAGIC 0x574d4d58 // "WMMX" |
| |
| #define HDD_WMM_HANDLE_IMPLICIT 0xFFFFFFFF |
| |
| #define HDD_WLAN_INVALID_STA_ID 0xFF |
| |
| /*---------------------------------------------------------------------------- |
| * Type Declarations |
| * -------------------------------------------------------------------------*/ |
| /*! @brief AC/Queue Index values for Linux Qdisc to operate on different traffic. |
| */ |
| typedef enum |
| { |
| HDD_LINUX_AC_VO = 0, |
| HDD_LINUX_AC_VI = 1, |
| HDD_LINUX_AC_BE = 2, |
| HDD_LINUX_AC_BK = 3 |
| |
| } hdd_wmm_linuxac_t; |
| |
| /*! @brief types of classification supported |
| */ |
| typedef enum |
| { |
| HDD_WMM_CLASSIFICATION_DSCP = 0, |
| HDD_WMM_CLASSIFICATION_802_1Q = 1 |
| |
| } hdd_wmm_classification_t; |
| |
| /*! @brief UAPSD state |
| */ |
| typedef enum |
| { |
| HDD_WMM_NON_UAPSD = 0, |
| HDD_WMM_UAPSD = 1 |
| |
| } hdd_wmm_uapsd_state_t; |
| |
| |
| typedef enum |
| { |
| //STA can associate with any AP, & HDD looks at the SME notification after |
| // association to find out if associated with QAP and acts accordingly |
| HDD_WMM_USER_MODE_AUTO = 0, |
| //SME will add the extra logic to make sure STA associates with a QAP only |
| HDD_WMM_USER_MODE_QBSS_ONLY = 1, |
| //SME will not join a QoS AP, unless the phy mode setting says "Auto". In |
| // that case, STA is free to join 11n AP. Although from HDD point of view, |
| // it will not be doing any packet classifications |
| HDD_WMM_USER_MODE_NO_QOS = 2, |
| |
| } hdd_wmm_user_mode_t; |
| |
| // UAPSD Mask bits |
| // (Bit0:VO; Bit1:VI; Bit2:BK; Bit3:BE all other bits are ignored) |
| #define HDD_AC_VO 0x1 |
| #define HDD_AC_VI 0x2 |
| #define HDD_AC_BK 0x4 |
| #define HDD_AC_BE 0x8 |
| |
| /*! @brief WMM Qos instance control block |
| */ |
| typedef struct |
| { |
| struct list_head node; |
| v_U32_t handle; |
| v_U32_t qosFlowId; |
| hdd_adapter_t* pAdapter; |
| WLANTL_ACEnumType acType; |
| hdd_wlan_wmm_status_e lastStatus; |
| struct work_struct wmmAcSetupImplicitQos; |
| v_U32_t magic; |
| } hdd_wmm_qos_context_t; |
| |
| /*! @brief WMM related per-AC state & status info |
| */ |
| typedef struct |
| { |
| // does the AP require access to this AC? |
| v_BOOL_t wmmAcAccessRequired; |
| |
| // does the worker thread need to acquire access to this AC? |
| v_BOOL_t wmmAcAccessNeeded; |
| |
| // is implicit QoS negotiation currently taking place? |
| v_BOOL_t wmmAcAccessPending; |
| |
| // has implicit QoS negotiation already failed? |
| v_BOOL_t wmmAcAccessFailed; |
| |
| // has implicit QoS negotiation already succeeded? |
| v_BOOL_t wmmAcAccessGranted; |
| |
| // is access to this AC allowed, either because we are not doing |
| // WMM, we are not doing implicit QoS, implict QoS has completed, |
| // or explicit QoS has completed? |
| v_BOOL_t wmmAcAccessAllowed; |
| |
| // is the wmmAcTspecInfo valid? |
| v_BOOL_t wmmAcTspecValid; |
| |
| // are the wmmAcUapsd* fields valid? |
| v_BOOL_t wmmAcUapsdInfoValid; |
| |
| // current (possibly aggregate) Tspec for this AC |
| sme_QosWmmTspecInfo wmmAcTspecInfo; |
| |
| // current U-APSD parameters |
| v_BOOL_t wmmAcIsUapsdEnabled; |
| v_U32_t wmmAcUapsdServiceInterval; |
| v_U32_t wmmAcUapsdSuspensionInterval; |
| sme_QosWmmDirType wmmAcUapsdDirection; |
| |
| #ifdef FEATURE_WLAN_ESE |
| // Inactivity time parameters for TSPEC |
| v_U32_t wmmInactivityTime; |
| v_U32_t wmmPrevTrafficCnt; |
| vos_timer_t wmmInactivityTimer; |
| #endif |
| |
| } hdd_wmm_ac_status_t; |
| |
| /*! @brief WMM state & status info |
| */ |
| typedef struct |
| { |
| struct list_head wmmContextList; |
| hdd_wmm_ac_status_t wmmAcStatus[WLANTL_MAX_AC]; |
| v_BOOL_t wmmQap; |
| v_BOOL_t wmmQosConnection; |
| } hdd_wmm_status_t; |
| |
| extern const v_U8_t hdd_QdiscAcToTlAC[]; |
| extern const v_U8_t hddWmmUpToAcMap[]; |
| extern const v_U8_t hddLinuxUpToAcMap[]; |
| |
| #define WLAN_HDD_MAX_DSCP 0x3f |
| |
| /**============================================================================ |
| @brief hdd_wmm_init() - Function which will initialize the WMM configuation |
| and status to an initial state. The configuration can later be overwritten |
| via application APIs |
| |
| @param pAdapter : [in] pointer to Adapter context |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_init ( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_adapter_init() - Function which will initialize the WMM configuation |
| and status to an initial state. The configuration can later be overwritten |
| via application APIs |
| |
| @param pAdapter : [in] pointer to Adapter context |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_adapter_init( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_adapter_close() - Function which will perform any necessary work to |
| to clean up the WMM functionality prior to the kernel module unload |
| |
| @param pAdapter : [in] pointer to adapter context |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_adapter_close ( hdd_adapter_t* pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_select_queue() - Function which will classify an OS packet |
| into linux Qdisc expectation |
| |
| @param dev : [in] pointer to net_device structure |
| @param skb : [in] pointer to OS packet (sk_buff) |
| |
| @return : queue_index/linux AC value. |
| ===========================================================================*/ |
| v_U16_t hdd_wmm_select_queue(struct net_device * dev, struct sk_buff *skb); |
| |
| /**============================================================================ |
| @brief hdd_hostapd_select_queue() - Function which will classify the packet |
| according to linux qdisc expectation. |
| |
| |
| @param dev : [in] pointer to net_device structure |
| @param skb : [in] pointer to os packet |
| |
| @return : Qdisc queue index |
| ===========================================================================*/ |
| |
| v_U16_t hdd_hostapd_select_queue(struct net_device * dev, struct sk_buff *skb |
| #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,13,0)) |
| , void *accel_priv |
| #endif |
| #if (LINUX_VERSION_CODE >= KERNEL_VERSION(3,14,0)) |
| , select_queue_fallback_t fallbac |
| #endif |
| ); |
| |
| |
| /**============================================================================ |
| @brief hdd_wmm_classify_pkt() - Function which will classify an OS packet |
| into a WMM AC based on either 802.1Q or DSCP |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param skb : [in] pointer to OS packet (sk_buff) |
| @param pAcType : [out] pointer to WMM AC type of OS packet |
| |
| @return : None |
| ===========================================================================*/ |
| v_VOID_t hdd_wmm_classify_pkt ( hdd_adapter_t* pAdapter, |
| struct sk_buff *skb, |
| WLANTL_ACEnumType* pAcType, |
| sme_QosWmmUpType* pUserPri); |
| |
| |
| /**============================================================================ |
| @brief hdd_wmm_acquire_access() - Function which will attempt to acquire |
| admittance for a WMM AC |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param acType : [in] WMM AC type of OS packet |
| @param pGranted : [out] pointer to boolean flag when indicates if access |
| has been granted or not |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_acquire_access( hdd_adapter_t* pAdapter, |
| WLANTL_ACEnumType acType, |
| v_BOOL_t * pGranted ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_assoc() - Function which will handle the housekeeping |
| required by WMM when association takes place |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param pRoamInfo: [in] pointer to roam information |
| @param eBssType : [in] type of BSS |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_assoc( hdd_adapter_t* pAdapter, |
| tCsrRoamInfo *pRoamInfo, |
| eCsrRoamBssType eBssType ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_connect() - Function which will handle the housekeeping |
| required by WMM when a connection is established |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param pRoamInfo: [in] pointer to roam information |
| @param eBssType : [in] type of BSS |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_connect( hdd_adapter_t* pAdapter, |
| tCsrRoamInfo *pRoamInfo, |
| eCsrRoamBssType eBssType ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_get_uapsd_mask() - Function which will calculate the |
| initial value of the UAPSD mask based upon the device configuration |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param pUapsdMask: [in] pointer to where the UAPSD Mask is to be stored |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_get_uapsd_mask( hdd_adapter_t* pAdapter, |
| tANI_U8 *pUapsdMask ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_is_active() - Function which will determine if WMM is |
| active on the current connection |
| |
| @param pAdapter : [in] pointer to adapter context |
| |
| @return : VOS_TRUE if WMM is enabled |
| : VOS_FALSE if WMM is not enabled |
| ===========================================================================*/ |
| v_BOOL_t hdd_wmm_is_active( hdd_adapter_t* pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_addts() - Function which will add a traffic spec at the |
| request of an application |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param handle : [in] handle to uniquely identify a TS |
| @param pTspec : [in] pointer to the traffic spec |
| |
| @return : HDD_WLAN_WMM_STATUS_* |
| ===========================================================================*/ |
| hdd_wlan_wmm_status_e hdd_wmm_addts( hdd_adapter_t* pAdapter, |
| v_U32_t handle, |
| sme_QosWmmTspecInfo* pTspec ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_delts() - Function which will delete a traffic spec at the |
| request of an application |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param handle : [in] handle to uniquely identify a TS |
| |
| @return : HDD_WLAN_WMM_STATUS_* |
| ===========================================================================*/ |
| hdd_wlan_wmm_status_e hdd_wmm_delts( hdd_adapter_t* pAdapter, |
| v_U32_t handle ); |
| |
| /**============================================================================ |
| @brief hdd_wmm_checkts() - Function which will return the status of a traffic |
| spec at the request of an application |
| |
| @param pAdapter : [in] pointer to adapter context |
| @param handle : [in] handle to uniquely identify a TS |
| |
| @return : HDD_WLAN_WMM_STATUS_* |
| ===========================================================================*/ |
| hdd_wlan_wmm_status_e hdd_wmm_checkts( hdd_adapter_t* pAdapter, |
| v_U32_t handle ); |
| /**============================================================================ |
| @brief hdd_wmm_adapter_clear() - Function which will clear the WMM status |
| of all ACs |
| @param pAdapter : [in] pointer to adapter context |
| |
| @return : VOS_STATUS_SUCCESS if succssful |
| : other values if failure |
| ===========================================================================*/ |
| VOS_STATUS hdd_wmm_adapter_clear( hdd_adapter_t *pAdapter ); |
| |
| /**============================================================================ |
| @brief hdd_log_ip_addr() - Function to log IP header src and dst address |
| @param pAdapter : [in] pointer to os packet |
| |
| @return : None |
| ===========================================================================*/ |
| void hdd_log_ip_addr(struct sk_buff *skb); |
| |
| /**============================================================================ |
| @brief hdd_get_arp_src_ip() - Function to get ARP src IP addr |
| @param pAdapter : [in] pointer to os packet |
| |
| @return : IP address |
| ===========================================================================*/ |
| uint32_t hdd_get_arp_src_ip(struct sk_buff *skb); |
| |
| #endif /* #ifndef _WLAN_HDD_WMM_H */ |