| /* |
| * Copyright (c) 2012-2015 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. |
| */ |
| |
| /** |
| * DOC: wlan_hdd_power.c |
| * |
| * WLAN power management functions |
| * |
| */ |
| |
| /* Include files */ |
| |
| #include <linux/pm.h> |
| #include <linux/wait.h> |
| #include <linux/cpu.h> |
| #include <wlan_hdd_includes.h> |
| #if defined(WLAN_OPEN_SOURCE) && defined(CONFIG_HAS_WAKELOCK) |
| #include <linux/wakelock.h> |
| #endif |
| #include "cdf_types.h" |
| #include "sme_api.h" |
| #include <cds_api.h> |
| #include <cds_sched.h> |
| #include <mac_init_api.h> |
| #include <wlan_qct_sys.h> |
| #include <wlan_hdd_main.h> |
| #include <wlan_hdd_assoc.h> |
| #include <wlan_nlink_srv.h> |
| #include <wlan_hdd_misc.h> |
| #include <wlan_hdd_power.h> |
| #include <dbglog_host.h> |
| #include <wlan_hdd_trace.h> |
| |
| #include <linux/semaphore.h> |
| #include <wlan_hdd_hostapd.h> |
| #include "cfg_api.h" |
| |
| #include <linux/inetdevice.h> |
| #include <wlan_hdd_cfg.h> |
| #include <wlan_hdd_cfg80211.h> |
| #include <net/addrconf.h> |
| #include <wlan_hdd_ipa.h> |
| |
| #include <wma_types.h> |
| #include "hif.h" |
| #include "sme_power_save_api.h" |
| #include "cds_concurrency.h" |
| |
| /* Preprocessor definitions and constants */ |
| #define HDD_SSR_BRING_UP_TIME 30000 |
| |
| /* Type declarations */ |
| |
| /** |
| * enum hdd_power_mode - Power Mode enumerations |
| * @DRIVER_POWER_MODE_AUTO: Driver can place device into power save |
| * @DRIVER_POWER_MODE_ACTIVE: Driver should operate at full power |
| */ |
| enum hdd_power_mode { |
| DRIVER_POWER_MODE_AUTO = 0, |
| DRIVER_POWER_MODE_ACTIVE = 1, |
| }; |
| |
| /* Function and variables declarations */ |
| |
| extern struct notifier_block hdd_netdev_notifier; |
| |
| static struct timer_list ssr_timer; |
| static bool ssr_timer_started; |
| /** |
| * hdd_conf_gtk_offload() - Configure GTK offload |
| * @pAdapter: pointer to the adapter |
| * @fenable: flag set to enable (1) or disable (0) GTK offload |
| * |
| * Central function to enable or disable GTK offload. |
| * |
| * Return: nothing |
| */ |
| #ifdef WLAN_FEATURE_GTK_OFFLOAD |
| static void hdd_conf_gtk_offload(hdd_adapter_t *pAdapter, bool fenable) |
| { |
| CDF_STATUS ret; |
| tSirGtkOffloadParams hddGtkOffloadReqParams; |
| hdd_station_ctx_t *pHddStaCtx = WLAN_HDD_GET_STATION_CTX_PTR(pAdapter); |
| |
| if (fenable) { |
| if ((eConnectionState_Associated == |
| pHddStaCtx->conn_info.connState) |
| && (GTK_OFFLOAD_ENABLE == |
| pHddStaCtx->gtkOffloadReqParams.ulFlags)) { |
| cdf_mem_copy(&hddGtkOffloadReqParams, |
| &pHddStaCtx->gtkOffloadReqParams, |
| sizeof(tSirGtkOffloadParams)); |
| |
| ret = sme_set_gtk_offload(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| &hddGtkOffloadReqParams, |
| pAdapter->sessionId); |
| if (CDF_STATUS_SUCCESS != ret) { |
| CDF_TRACE(CDF_MODULE_ID_HDD, |
| CDF_TRACE_LEVEL_ERROR, |
| "%s: sme_set_gtk_offload failed, returned %d", |
| __func__, ret); |
| return; |
| } |
| |
| CDF_TRACE(CDF_MODULE_ID_HDD, CDF_TRACE_LEVEL_INFO, |
| "%s: sme_set_gtk_offload successfull", |
| __func__); |
| } |
| |
| } else { |
| if ((eConnectionState_Associated == |
| pHddStaCtx->conn_info.connState) |
| && (0 == |
| memcmp(&pHddStaCtx->gtkOffloadReqParams.bssId, |
| &pHddStaCtx->conn_info.bssId, CDF_MAC_ADDR_SIZE)) |
| && (GTK_OFFLOAD_ENABLE == |
| pHddStaCtx->gtkOffloadReqParams.ulFlags)) { |
| |
| /* Host driver has previously offloaded GTK rekey */ |
| ret = sme_get_gtk_offload |
| (WLAN_HDD_GET_HAL_CTX(pAdapter), |
| wlan_hdd_cfg80211_update_replay_counter_callback, |
| pAdapter, pAdapter->sessionId); |
| if (CDF_STATUS_SUCCESS != ret) { |
| CDF_TRACE(CDF_MODULE_ID_HDD, |
| CDF_TRACE_LEVEL_ERROR, |
| "%s: sme_get_gtk_offload failed, returned %d", |
| __func__, ret); |
| return; |
| } else { |
| CDF_TRACE(CDF_MODULE_ID_HDD, |
| CDF_TRACE_LEVEL_INFO, |
| "%s: sme_get_gtk_offload successful", |
| __func__); |
| |
| /* Sending GTK offload dissable */ |
| memcpy(&hddGtkOffloadReqParams, |
| &pHddStaCtx->gtkOffloadReqParams, |
| sizeof(tSirGtkOffloadParams)); |
| hddGtkOffloadReqParams.ulFlags = |
| GTK_OFFLOAD_DISABLE; |
| ret = |
| sme_set_gtk_offload(WLAN_HDD_GET_HAL_CTX |
| (pAdapter), |
| &hddGtkOffloadReqParams, |
| pAdapter->sessionId); |
| if (CDF_STATUS_SUCCESS != ret) { |
| CDF_TRACE(CDF_MODULE_ID_HDD, |
| CDF_TRACE_LEVEL_ERROR, |
| "%s: failed to dissable GTK offload, returned %d", |
| __func__, ret); |
| return; |
| } |
| CDF_TRACE(CDF_MODULE_ID_HDD, |
| CDF_TRACE_LEVEL_INFO, |
| "%s: successfully dissabled GTK offload request to HAL", |
| __func__); |
| } |
| } |
| } |
| return; |
| } |
| #else /* WLAN_FEATURE_GTK_OFFLOAD */ |
| static void hdd_conf_gtk_offload(hdd_adapter_t *pAdapter, bool fenable) |
| { |
| } |
| #endif /*WLAN_FEATURE_GTK_OFFLOAD */ |
| |
| #ifdef WLAN_NS_OFFLOAD |
| /** |
| * __wlan_hdd_ipv6_changed() - IPv6 notifier callback function |
| * @nb: notifier block that was registered with the kernel |
| * @data: (unused) generic data that was registered with the kernel |
| * @arg: (unused) generic argument that was registered with the kernel |
| * |
| * This is a callback function that is registered with the kernel via |
| * register_inet6addr_notifier() which allows the driver to be |
| * notified when there is an IPv6 address change. |
| * |
| * Return: NOTIFY_DONE to indicate we don't care what happens with |
| * other callbacks |
| */ |
| static int __wlan_hdd_ipv6_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| struct inet6_ifaddr *ifa = (struct inet6_ifaddr *)arg; |
| struct net_device *ndev = ifa->idev->dev; |
| hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev); |
| hdd_context_t *pHddCtx; |
| int status; |
| |
| if ((pAdapter == NULL) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic)) { |
| hddLog(LOGE, FL("Adapter context is invalid %p"), pAdapter); |
| return -EINVAL; |
| } |
| |
| if ((pAdapter->dev == ndev) && |
| (pAdapter->device_mode == WLAN_HDD_INFRA_STATION || |
| pAdapter->device_mode == WLAN_HDD_P2P_CLIENT)) { |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is invalid")); |
| return NOTIFY_DONE; |
| } |
| |
| schedule_work(&pAdapter->ipv6NotifierWorkQueue); |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * wlan_hdd_ipv6_changed() - IPv6 change notifier callback |
| * @nb: pointer to notifier block |
| * @data: data |
| * @arg: arg |
| * |
| * This is the IPv6 notifier callback function gets invoked |
| * if any change in IP and then invoke the function @__wlan_hdd_ipv6_changed |
| * to reconfigure the offload parameters. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| int wlan_hdd_ipv6_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_ipv6_changed(nb, data, arg); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_conf_ns_offload() - Configure NS offload |
| * @pAdapter: pointer to the adapter |
| * @fenable: flag to enable or disable |
| * 0 - disable |
| * 1 - enable |
| * |
| * Return: nothing |
| */ |
| static void hdd_conf_ns_offload(hdd_adapter_t *pAdapter, bool fenable) |
| { |
| struct inet6_dev *in6_dev; |
| struct inet6_ifaddr *ifp; |
| struct list_head *p; |
| uint8_t |
| selfIPv6Addr[SIR_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA] |
| [SIR_MAC_IPV6_ADDR_LEN] = { {0,} }; |
| bool selfIPv6AddrValid[SIR_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA] = { 0 }; |
| tSirHostOffloadReq offLoadRequest; |
| hdd_context_t *pHddCtx; |
| |
| int i = 0; |
| CDF_STATUS returnStatus; |
| uint32_t count = 0, scope; |
| |
| ENTER(); |
| hddLog(LOG1, FL(" fenable = %d"), fenable); |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| /* In SAP/P2PGo mode, ARP/NS offload feature capability |
| * is controlled by one bit. |
| */ |
| |
| if ((WLAN_HDD_SOFTAP == pAdapter->device_mode || |
| WLAN_HDD_P2P_GO == pAdapter->device_mode) && |
| !pHddCtx->ap_arpns_support) { |
| hddLog(LOG1, |
| FL("NS Offload is not supported in SAP/P2PGO mode")); |
| return; |
| } |
| |
| if (fenable) { |
| in6_dev = __in6_dev_get(pAdapter->dev); |
| if (NULL != in6_dev) { |
| /* read_lock_bh(&in6_dev->lock); */ |
| list_for_each(p, &in6_dev->addr_list) { |
| if (count >= |
| SIR_MAC_NUM_TARGET_IPV6_NS_OFFLOAD_NA) { |
| hdd_err("Reached max supported NS Offload addresses"); |
| break; |
| } |
| ifp = |
| list_entry(p, struct inet6_ifaddr, if_list); |
| scope = ipv6_addr_src_scope(&ifp->addr); |
| |
| switch (scope) { |
| case IPV6_ADDR_SCOPE_GLOBAL: |
| case IPV6_ADDR_SCOPE_LINKLOCAL: |
| cdf_mem_copy(&selfIPv6Addr[count], |
| &ifp->addr.s6_addr, |
| sizeof(ifp->addr.s6_addr)); |
| selfIPv6AddrValid[count] = |
| SIR_IPV6_ADDR_VALID; |
| hdd_info("Index %d scope = %s Address : %pI6", |
| count, |
| (scope == IPV6_ADDR_SCOPE_LINKLOCAL) ? |
| "LINK LOCAL" : "GLOBAL", |
| selfIPv6Addr[count]); |
| count += 1; |
| break; |
| default: |
| hdd_err("The Scope %d is not supported", |
| scope); |
| } |
| } |
| /* read_unlock_bh(&in6_dev->lock); */ |
| cdf_mem_zero(&offLoadRequest, sizeof(offLoadRequest)); |
| for (i = 0; i < count; i++) { |
| /* Filling up the request structure |
| * Filling the selfIPv6Addr with solicited address |
| * A Solicited-Node multicast address is created by |
| * taking the last 24 bits of a unicast or anycast |
| * address and appending them to the prefix |
| * |
| * FF02:0000:0000:0000:0000:0001:FFXX:XXXX |
| * |
| * here XX is the unicast/anycast bits |
| */ |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][0] = 0xFF; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][1] = 0x02; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][11] = 0x01; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][12] = 0xFF; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][13] = |
| selfIPv6Addr[i][13]; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][14] = |
| selfIPv6Addr[i][14]; |
| offLoadRequest.nsOffloadInfo.selfIPv6Addr[i][15] = |
| selfIPv6Addr[i][15]; |
| offLoadRequest.nsOffloadInfo.slotIdx = i; |
| cdf_mem_copy(&offLoadRequest.nsOffloadInfo.targetIPv6Addr[i], |
| &selfIPv6Addr[i][0], SIR_MAC_IPV6_ADDR_LEN); |
| |
| offLoadRequest.nsOffloadInfo.targetIPv6AddrValid[i] = |
| SIR_IPV6_ADDR_VALID; |
| |
| hdd_info("configuredMcastBcastFilter: %d", |
| pHddCtx->configuredMcastBcastFilter); |
| |
| if ((true == pHddCtx->sus_res_mcastbcast_filter_valid) |
| && ((HDD_MCASTBCASTFILTER_FILTER_ALL_MULTICAST == |
| pHddCtx->sus_res_mcastbcast_filter) || |
| (HDD_MCASTBCASTFILTER_FILTER_ALL_MULTICAST_BROADCAST == |
| pHddCtx->sus_res_mcastbcast_filter))) { |
| hdd_info("Set offLoadRequest with SIR_OFFLOAD_NS_AND_MCAST_FILTER_ENABLE"); |
| offLoadRequest.enableOrDisable = |
| SIR_OFFLOAD_NS_AND_MCAST_FILTER_ENABLE; |
| } |
| |
| cdf_mem_copy(&offLoadRequest.params.hostIpv6Addr, |
| &offLoadRequest.nsOffloadInfo.targetIPv6Addr[i], |
| SIR_MAC_IPV6_ADDR_LEN); |
| |
| hdd_info("Setting NSOffload with solicitedIp: %pI6, targetIp: %pI6, Index %d", |
| &offLoadRequest.nsOffloadInfo.selfIPv6Addr[i], |
| &offLoadRequest.nsOffloadInfo.targetIPv6Addr[i], i); |
| } |
| offLoadRequest.offloadType = SIR_IPV6_NS_OFFLOAD; |
| offLoadRequest.enableOrDisable = SIR_OFFLOAD_ENABLE; |
| cdf_mem_copy(&offLoadRequest.nsOffloadInfo.selfMacAddr, |
| &pAdapter->macAddressCurrent.bytes, SIR_MAC_ADDR_LEN); |
| /* set number of ns offload address count */ |
| offLoadRequest.num_ns_offload_count = count; |
| /* Configure the Firmware with this */ |
| returnStatus = sme_set_host_offload(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, &offLoadRequest); |
| if (CDF_STATUS_SUCCESS != returnStatus) { |
| hdd_err("Failed to enable HostOffload feature with status: %d", |
| returnStatus); |
| } |
| } else { |
| hdd_err("IPv6 dev does not exist. Failed to request NSOffload"); |
| return; |
| } |
| } else { |
| /* Disable NSOffload */ |
| cdf_mem_zero((void *)&offLoadRequest, sizeof(tSirHostOffloadReq)); |
| offLoadRequest.enableOrDisable = SIR_OFFLOAD_DISABLE; |
| offLoadRequest.offloadType = SIR_IPV6_NS_OFFLOAD; |
| |
| if (CDF_STATUS_SUCCESS != |
| sme_set_host_offload(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, &offLoadRequest)) |
| hdd_err("Failed to disable NS Offload"); |
| } |
| EXIT(); |
| return; |
| } |
| |
| /** |
| * __hdd_ipv6_notifier_work_queue() - IPv6 notification work function |
| * @work: registered work item |
| * |
| * This function performs the work initially trigged by a callback |
| * from the IPv6 netdev notifier. Since this means there has been a |
| * change in IPv6 state for the interface, the NS offload is |
| * reconfigured. |
| * |
| * Return: None |
| */ |
| void __hdd_ipv6_notifier_work_queue(struct work_struct *work) |
| { |
| hdd_adapter_t *pAdapter = |
| container_of(work, hdd_adapter_t, ipv6NotifierWorkQueue); |
| hdd_context_t *pHddCtx; |
| int status; |
| |
| hddLog(LOG1, FL("Reconfiguring NS Offload")); |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is invalid")); |
| return; |
| } |
| |
| if (!pHddCtx->config->active_mode_offload) { |
| hdd_err("Active mode offload is disabled"); |
| return; |
| } |
| |
| if (false == pHddCtx->sus_res_mcastbcast_filter_valid) { |
| pHddCtx->sus_res_mcastbcast_filter = |
| pHddCtx->configuredMcastBcastFilter; |
| pHddCtx->sus_res_mcastbcast_filter_valid = true; |
| } |
| |
| if ((eConnectionState_Associated == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState)) |
| if (pHddCtx->config->fhostNSOffload) |
| hdd_conf_ns_offload(pAdapter, true); |
| } |
| |
| /** |
| * hdd_ipv6_notifier_work_queue() - IP V6 change notifier work handler |
| * @work: Pointer to work context |
| * |
| * Return: none |
| */ |
| void hdd_ipv6_notifier_work_queue(struct work_struct *work) |
| { |
| cds_ssr_protect(__func__); |
| __hdd_ipv6_notifier_work_queue(work); |
| cds_ssr_unprotect(__func__); |
| } |
| |
| /** |
| * hdd_conf_hostoffload() - Central function to configure the supported offloads |
| * @pAdapter: pointer to the adapter |
| * @fenable: flag set to enable (1) or disable (0) |
| * |
| * Central function to configure the supported offloads either |
| * enable or disable them. |
| * |
| * Return: nothing |
| */ |
| void hdd_conf_hostoffload(hdd_adapter_t *pAdapter, bool fenable) |
| { |
| hdd_context_t *pHddCtx; |
| |
| hdd_info("Configuring offloads with flag: %d", fenable); |
| |
| /* Get the HDD context. */ |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| if (((WLAN_HDD_INFRA_STATION != pAdapter->device_mode) && |
| (WLAN_HDD_P2P_CLIENT != pAdapter->device_mode))) { |
| hdd_err("Offloads not supported in mode %d", |
| pAdapter->device_mode); |
| return; |
| } |
| |
| if (eConnectionState_Associated != |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState) { |
| hdd_err("Offloads not supported in state %d", |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))-> |
| conn_info.connState); |
| return; |
| } |
| |
| hdd_conf_gtk_offload(pAdapter, fenable); |
| |
| /* Configure ARP/NS offload during cfg80211 suspend/resume only |
| * if active mode offload is disabled |
| */ |
| if (!pHddCtx->config->active_mode_offload) { |
| hdd_conf_arp_offload(pAdapter, fenable); |
| if (pHddCtx->config->fhostNSOffload) |
| hdd_conf_ns_offload(pAdapter, fenable); |
| } |
| return; |
| } |
| #endif |
| |
| /** |
| * __hdd_ipv4_notifier_work_queue() - IPv4 notification work function |
| * @work: registered work item |
| * |
| * This function performs the work initially trigged by a callback |
| * from the IPv4 netdev notifier. Since this means there has been a |
| * change in IPv4 state for the interface, the ARP offload is |
| * reconfigured. |
| * |
| * Return: None |
| */ |
| void __hdd_ipv4_notifier_work_queue(struct work_struct *work) |
| { |
| hdd_adapter_t *pAdapter = |
| container_of(work, hdd_adapter_t, ipv4NotifierWorkQueue); |
| hdd_context_t *pHddCtx; |
| int status; |
| |
| hdd_info("Configuring ARP Offload"); |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is invalid")); |
| return; |
| } |
| |
| if (!pHddCtx->config->active_mode_offload) { |
| hdd_err("Active mode offload is disabled"); |
| return; |
| } |
| |
| if (false == pHddCtx->sus_res_mcastbcast_filter_valid) { |
| pHddCtx->sus_res_mcastbcast_filter = |
| pHddCtx->configuredMcastBcastFilter; |
| pHddCtx->sus_res_mcastbcast_filter_valid = true; |
| } |
| |
| if ((eConnectionState_Associated == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState)) |
| hdd_conf_arp_offload(pAdapter, true); |
| } |
| |
| /** |
| * hdd_ipv4_notifier_work_queue() - IP V4 change notifier work handler |
| * @work: Pointer to work context |
| * |
| * Return: none |
| */ |
| void hdd_ipv4_notifier_work_queue(struct work_struct *work) |
| { |
| cds_ssr_protect(__func__); |
| __hdd_ipv4_notifier_work_queue(work); |
| cds_ssr_unprotect(__func__); |
| } |
| |
| /** |
| * __wlan_hdd_ipv4_changed() - IPv4 notifier callback function |
| * @nb: notifier block that was registered with the kernel |
| * @data: (unused) generic data that was registered with the kernel |
| * @arg: (unused) generic argument that was registered with the kernel |
| * |
| * This is a callback function that is registered with the kernel via |
| * register_inetaddr_notifier() which allows the driver to be |
| * notified when there is an IPv4 address change. |
| * |
| * Return: NOTIFY_DONE to indicate we don't care what happens with |
| * other callbacks |
| */ |
| static int __wlan_hdd_ipv4_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| struct in_ifaddr *ifa = (struct in_ifaddr *)arg; |
| struct in_ifaddr **ifap = NULL; |
| struct in_device *in_dev; |
| |
| struct net_device *ndev = ifa->ifa_dev->dev; |
| hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(ndev); |
| hdd_context_t *pHddCtx; |
| int status; |
| |
| if ((pAdapter == NULL) || (WLAN_HDD_ADAPTER_MAGIC != pAdapter->magic)) { |
| hddLog(LOGE, FL("Adapter context is invalid %p"), pAdapter); |
| return -EINVAL; |
| } |
| |
| if ((pAdapter && pAdapter->dev == ndev) && |
| (pAdapter->device_mode == WLAN_HDD_INFRA_STATION || |
| pAdapter->device_mode == WLAN_HDD_P2P_CLIENT)) { |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is invalid")); |
| return NOTIFY_DONE; |
| } |
| |
| if (!pHddCtx->config->fhostArpOffload) { |
| hddLog(LOG1, |
| FL("Offload not enabled ARPOffload=%d"), |
| pHddCtx->config->fhostArpOffload); |
| return NOTIFY_DONE; |
| } |
| |
| in_dev = __in_dev_get_rtnl(pAdapter->dev); |
| if (in_dev) { |
| for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; |
| ifap = &ifa->ifa_next) { |
| if (!strcmp(pAdapter->dev->name, |
| ifa->ifa_label)) { |
| break; /* found */ |
| } |
| } |
| } |
| if (ifa && ifa->ifa_local) { |
| schedule_work(&pAdapter->ipv4NotifierWorkQueue); |
| } |
| } |
| |
| return NOTIFY_DONE; |
| } |
| |
| /** |
| * wlan_hdd_ipv4_changed() - IPv4 change notifier callback |
| * @nb: pointer to notifier block |
| * @data: data |
| * @arg: arg |
| * |
| * This is the IPv4 notifier callback function gets invoked |
| * if any change in IP and then invoke the function @__wlan_hdd_ipv4_changed |
| * to reconfigure the offload parameters. |
| * |
| * Return: 0 on success, error number otherwise. |
| */ |
| int wlan_hdd_ipv4_changed(struct notifier_block *nb, |
| unsigned long data, void *arg) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_ipv4_changed(nb, data, arg); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * hdd_conf_arp_offload() - Configure ARP offload |
| * @pAdapter: Adapter context for which ARP offload is to be configured |
| * @fenable: true : enable ARP offload false : disable arp offload |
| * |
| * Return: |
| * CDF_STATUS_SUCCESS - on successful operation, |
| * CDF_STATUS_E_FAILURE - on failure of operation |
| */ |
| CDF_STATUS hdd_conf_arp_offload(hdd_adapter_t *pAdapter, bool fenable) |
| { |
| struct in_ifaddr **ifap = NULL; |
| struct in_ifaddr *ifa = NULL; |
| struct in_device *in_dev; |
| int i = 0; |
| tSirHostOffloadReq offLoadRequest; |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| |
| hdd_info("fenable = %d", fenable); |
| |
| /* In SAP/P2P Go mode, ARP/NS Offload feature capability |
| * is controlled by one bit. |
| */ |
| if ((WLAN_HDD_SOFTAP == pAdapter->device_mode || |
| WLAN_HDD_P2P_GO == pAdapter->device_mode) && |
| !pHddCtx->ap_arpns_support) { |
| hddLog(LOG1, |
| FL("ARP Offload is not supported in SAP/P2PGO mode")); |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| if (fenable) { |
| in_dev = __in_dev_get_rtnl(pAdapter->dev); |
| if (in_dev) { |
| for (ifap = &in_dev->ifa_list; (ifa = *ifap) != NULL; |
| ifap = &ifa->ifa_next) { |
| if (!strcmp(pAdapter->dev->name, |
| ifa->ifa_label)) { |
| break; /* found */ |
| } |
| } |
| } |
| if (ifa && ifa->ifa_local) { |
| offLoadRequest.offloadType = SIR_IPV4_ARP_REPLY_OFFLOAD; |
| offLoadRequest.enableOrDisable = SIR_OFFLOAD_ENABLE; |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, "%s: Enabled", __func__); |
| |
| if (((HDD_MCASTBCASTFILTER_FILTER_ALL_BROADCAST == |
| pHddCtx->sus_res_mcastbcast_filter) || |
| (HDD_MCASTBCASTFILTER_FILTER_ALL_MULTICAST_BROADCAST |
| == pHddCtx->sus_res_mcastbcast_filter)) |
| && (true == |
| pHddCtx->sus_res_mcastbcast_filter_valid)) { |
| offLoadRequest.enableOrDisable = |
| SIR_OFFLOAD_ARP_AND_BCAST_FILTER_ENABLE; |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "offload: inside arp offload conditional check"); |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "offload: arp filter programmed = %d", |
| offLoadRequest.enableOrDisable); |
| |
| /* converting u32 to IPV4 address */ |
| for (i = 0; i < 4; i++) { |
| offLoadRequest.params.hostIpv4Addr[i] = |
| (ifa->ifa_local >> (i * 8)) & 0xFF; |
| } |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| " Enable SME HostOffload: %d.%d.%d.%d", |
| offLoadRequest.params.hostIpv4Addr[0], |
| offLoadRequest.params.hostIpv4Addr[1], |
| offLoadRequest.params.hostIpv4Addr[2], |
| offLoadRequest.params.hostIpv4Addr[3]); |
| |
| if (CDF_STATUS_SUCCESS != |
| sme_set_host_offload(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, |
| &offLoadRequest)) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| "%s: Failed to enable HostOffload feature", |
| __func__); |
| return CDF_STATUS_E_FAILURE; |
| } |
| } else { |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| FL("IP Address is not assigned")); |
| } |
| |
| return CDF_STATUS_SUCCESS; |
| } else { |
| cdf_mem_zero((void *)&offLoadRequest, |
| sizeof(tSirHostOffloadReq)); |
| offLoadRequest.enableOrDisable = SIR_OFFLOAD_DISABLE; |
| offLoadRequest.offloadType = SIR_IPV4_ARP_REPLY_OFFLOAD; |
| |
| if (CDF_STATUS_SUCCESS != |
| sme_set_host_offload(WLAN_HDD_GET_HAL_CTX(pAdapter), |
| pAdapter->sessionId, &offLoadRequest)) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| "%s: Failure to disable host " "offload feature", |
| __func__); |
| return CDF_STATUS_E_FAILURE; |
| } |
| return CDF_STATUS_SUCCESS; |
| } |
| } |
| |
| /** |
| * hdd_mcbc_filter_modification() - MCBC Filter Modifier |
| * @pHddCtx: Global Hdd Context |
| * @pMcBcFilter: Multicast/Broadcast filter to be modified |
| * |
| * This function is called before setting mcbc filters |
| * to modify filter value considering different offloads |
| * |
| * Return: None. |
| */ |
| static void hdd_mcbc_filter_modification(hdd_context_t *pHddCtx, |
| uint8_t *pMcBcFilter) |
| { |
| if (NULL == pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, FL("NULL HDD context passed")); |
| return; |
| } |
| |
| *pMcBcFilter = pHddCtx->configuredMcastBcastFilter; |
| if (pHddCtx->config->fhostArpOffload) { |
| /* ARP offload is enabled, do not block bcast packets at RXP |
| * Will be using Bitmasking to reset the filter. As we have |
| * disable Broadcast filtering, Anding with the negation |
| * of Broadcast BIT |
| */ |
| *pMcBcFilter &= ~(HDD_MCASTBCASTFILTER_FILTER_ALL_BROADCAST); |
| } |
| #ifdef WLAN_NS_OFFLOAD |
| if (pHddCtx->config->fhostNSOffload) { |
| /* NS offload is enabled, do not block mcast packets at RXP |
| * Will be using Bitmasking to reset the filter. As we have |
| * disable Multicast filtering, Anding with the negation |
| * of Multicast BIT |
| */ |
| *pMcBcFilter &= ~(HDD_MCASTBCASTFILTER_FILTER_ALL_MULTICAST); |
| } |
| #endif |
| |
| pHddCtx->configuredMcastBcastFilter = *pMcBcFilter; |
| } |
| |
| /** |
| * hdd_conf_mcastbcast_filter() - Configure multicast/broadcast filter |
| * @pHddCtx: Global HDD context |
| * @setfilter: true if filter is being set, false if filter is being cleared |
| * |
| * Return: None. |
| */ |
| void hdd_conf_mcastbcast_filter(hdd_context_t *pHddCtx, bool setfilter) |
| { |
| CDF_STATUS cdf_ret_status = CDF_STATUS_E_FAILURE; |
| tpSirWlanSetRxpFilters wlanRxpFilterParam = |
| cdf_mem_malloc(sizeof(tSirWlanSetRxpFilters)); |
| if (NULL == wlanRxpFilterParam) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: cdf_mem_alloc failed ", __func__); |
| return; |
| } |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "%s: Configuring Mcast/Bcast Filter Setting. setfilter %d", |
| __func__, setfilter); |
| if (true == setfilter) { |
| hdd_mcbc_filter_modification(pHddCtx, |
| &wlanRxpFilterParam-> |
| configuredMcstBcstFilterSetting); |
| } else { |
| /*Use the current configured value to clear */ |
| wlanRxpFilterParam->configuredMcstBcstFilterSetting = |
| pHddCtx->configuredMcastBcastFilter; |
| } |
| |
| wlanRxpFilterParam->setMcstBcstFilter = setfilter; |
| cdf_ret_status = |
| sme_configure_rxp_filter(pHddCtx->hHal, wlanRxpFilterParam); |
| |
| if (setfilter && (CDF_STATUS_SUCCESS == cdf_ret_status)) |
| pHddCtx->hdd_mcastbcast_filter_set = true; |
| |
| hddLog(LOG1, |
| FL("%s to post set/reset filter to lower mac with status %d configuredMcstBcstFilterSetting = %d setMcstBcstFilter = %d"), |
| (CDF_STATUS_SUCCESS != cdf_ret_status) ? "Failed" : "Success", |
| cdf_ret_status, |
| wlanRxpFilterParam->configuredMcstBcstFilterSetting, |
| wlanRxpFilterParam->setMcstBcstFilter); |
| |
| if (CDF_STATUS_SUCCESS != cdf_ret_status) |
| cdf_mem_free(wlanRxpFilterParam); |
| } |
| |
| #ifdef WLAN_FEATURE_PACKET_FILTERING |
| /** |
| * wlan_hdd_set_mc_addr_list() - set MC address list in FW |
| * @pAdapter: adapter whose MC list is being set |
| * @set: flag which indicates if addresses are being set or cleared |
| */ |
| void wlan_hdd_set_mc_addr_list(hdd_adapter_t *pAdapter, uint8_t set) |
| { |
| uint8_t i; |
| tpSirRcvFltMcAddrList pMulticastAddrs = NULL; |
| tHalHandle hHal = NULL; |
| hdd_context_t *pHddCtx = (hdd_context_t *) pAdapter->pHddCtx; |
| |
| if (NULL == pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, FL("HDD CTX is NULL")); |
| return; |
| } |
| |
| hHal = pHddCtx->hHal; |
| |
| if (NULL == hHal) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, FL("HAL Handle is NULL")); |
| return; |
| } |
| |
| /* Check if INI is enabled or not, other wise just return |
| */ |
| if (!pHddCtx->config->fEnableMCAddrList) { |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| FL("gMCAddrListEnable is not enabled in INI")); |
| return; |
| } |
| pMulticastAddrs = cdf_mem_malloc(sizeof(tSirRcvFltMcAddrList)); |
| if (NULL == pMulticastAddrs) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| FL("Could not allocate Memory")); |
| return; |
| } |
| cdf_mem_zero(pMulticastAddrs, sizeof(tSirRcvFltMcAddrList)); |
| pMulticastAddrs->action = set; |
| |
| if (set) { |
| /* Following pre-conditions should be satisfied before we |
| * configure the MC address list. |
| */ |
| if (((pAdapter->device_mode == WLAN_HDD_INFRA_STATION) |
| || (pAdapter->device_mode == WLAN_HDD_P2P_CLIENT)) |
| && pAdapter->mc_addr_list.mc_cnt |
| && (eConnectionState_Associated == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))-> |
| conn_info.connState)) { |
| pMulticastAddrs->ulMulticastAddrCnt = |
| pAdapter->mc_addr_list.mc_cnt; |
| for (i = 0; i < pAdapter->mc_addr_list.mc_cnt; |
| i++) { |
| memcpy(pMulticastAddrs->multicastAddr[i], |
| pAdapter->mc_addr_list.addr[i], |
| sizeof(pAdapter->mc_addr_list. |
| addr[i])); |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "%s: %s multicast filter: addr =" |
| MAC_ADDRESS_STR, __func__, |
| set ? "setting" : "clearing", |
| MAC_ADDR_ARRAY(pMulticastAddrs-> |
| multicastAddr[i])); |
| } |
| /* Set multicast filter */ |
| sme_8023_multicast_list(hHal, pAdapter->sessionId, |
| pMulticastAddrs); |
| } |
| } else { |
| /* Need to clear only if it was previously configured */ |
| if (pAdapter->mc_addr_list.isFilterApplied) { |
| pMulticastAddrs->ulMulticastAddrCnt = |
| pAdapter->mc_addr_list.mc_cnt; |
| for (i = 0; i < pAdapter->mc_addr_list.mc_cnt; |
| i++) { |
| memcpy(pMulticastAddrs->multicastAddr[i], |
| pAdapter->mc_addr_list.addr[i], |
| sizeof(pAdapter->mc_addr_list. |
| addr[i])); |
| } |
| sme_8023_multicast_list(hHal, pAdapter->sessionId, |
| pMulticastAddrs); |
| } |
| |
| } |
| /* MAddrCnt is MulticastAddrCnt */ |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "smeSessionId:%d; set:%d; MCAdddrCnt :%d", |
| pAdapter->sessionId, set, |
| pMulticastAddrs->ulMulticastAddrCnt); |
| |
| pAdapter->mc_addr_list.isFilterApplied = set ? true : false; |
| cdf_mem_free(pMulticastAddrs); |
| return; |
| } |
| #endif |
| |
| /** |
| * hdd_conf_suspend_ind() - Send Suspend notification |
| * @pHddCtx: HDD Global context |
| * @pAdapter: adapter being suspended |
| * @callback: callback function to be called upon completion |
| * @callbackContext: callback context to be passed back to callback function |
| * |
| * Return: None. |
| */ |
| static void hdd_conf_suspend_ind(hdd_context_t *pHddCtx, |
| hdd_adapter_t *pAdapter, |
| void (*callback)(void *callbackContext, |
| bool suspended), |
| void *callbackContext) |
| { |
| CDF_STATUS cdf_ret_status = CDF_STATUS_E_FAILURE; |
| tpSirWlanSuspendParam wlanSuspendParam = |
| cdf_mem_malloc(sizeof(tSirWlanSuspendParam)); |
| |
| if (false == pHddCtx->sus_res_mcastbcast_filter_valid) { |
| pHddCtx->sus_res_mcastbcast_filter = |
| pHddCtx->configuredMcastBcastFilter; |
| pHddCtx->sus_res_mcastbcast_filter_valid = true; |
| hddLog(CDF_TRACE_LEVEL_INFO, "offload: hdd_conf_suspend_ind"); |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "configuredMCastBcastFilter saved = %d", |
| pHddCtx->configuredMcastBcastFilter); |
| |
| } |
| |
| if (NULL == wlanSuspendParam) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: cdf_mem_alloc failed ", __func__); |
| return; |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "%s: send wlan suspend indication", __func__); |
| |
| /* Configure supported OffLoads */ |
| hdd_conf_hostoffload(pAdapter, true); |
| wlanSuspendParam->configuredMcstBcstFilterSetting = |
| pHddCtx->configuredMcastBcastFilter; |
| |
| /* Enable MC address filtering during cfg80211 suspend if active mode |
| * mode offload is disabled in INI |
| */ |
| if (!pHddCtx->config->active_mode_offload) { |
| hdd_info("enable mc address filtering"); |
| wlan_hdd_set_mc_addr_list(pAdapter, true); |
| } |
| |
| if ((eConnectionState_Associated == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState) || |
| (eConnectionState_IbssConnected == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState)) |
| wlanSuspendParam->connectedState = true; |
| else |
| wlanSuspendParam->connectedState = false; |
| |
| wlanSuspendParam->sessionId = pAdapter->sessionId; |
| cdf_ret_status = |
| sme_configure_suspend_ind(pHddCtx->hHal, wlanSuspendParam, |
| callback, callbackContext); |
| if (CDF_STATUS_SUCCESS == cdf_ret_status) { |
| pHddCtx->hdd_mcastbcast_filter_set = true; |
| } else { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| FL("sme_configure_suspend_ind returned failure %d"), |
| cdf_ret_status); |
| |
| cdf_mem_free(wlanSuspendParam); |
| } |
| } |
| |
| /** |
| * hdd_conf_suspend_ind() - Send Resume notification |
| * @pAdapter: adapter being resumed |
| * |
| * Return: None. |
| */ |
| static void hdd_conf_resume_ind(hdd_adapter_t *pAdapter) |
| { |
| hdd_context_t *pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| CDF_STATUS cdf_ret_status = CDF_STATUS_E_FAILURE; |
| |
| cdf_ret_status = sme_configure_resume_req(pHddCtx->hHal, NULL); |
| |
| if (CDF_STATUS_SUCCESS != cdf_ret_status) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| "%s: sme_configure_resume_req return failure %d", |
| __func__, cdf_ret_status); |
| |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "%s: send wlan resume indication", __func__); |
| /* Disable supported OffLoads */ |
| hdd_conf_hostoffload(pAdapter, false); |
| pHddCtx->hdd_mcastbcast_filter_set = false; |
| |
| if (true == pHddCtx->sus_res_mcastbcast_filter_valid) { |
| pHddCtx->configuredMcastBcastFilter = |
| pHddCtx->sus_res_mcastbcast_filter; |
| pHddCtx->sus_res_mcastbcast_filter_valid = false; |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "offload: in hdd_conf_resume_ind, restoring configuredMcastBcastFilter"); |
| hddLog(CDF_TRACE_LEVEL_INFO, "configuredMcastBcastFilter = %d", |
| pHddCtx->configuredMcastBcastFilter); |
| |
| /* Disable MC address filtering during cfg80211 suspend if active mode |
| * mode offload is disabled in INI |
| */ |
| if (!pHddCtx->config->active_mode_offload) { |
| hdd_info("disable mc address filtering"); |
| wlan_hdd_set_mc_addr_list(pAdapter, false); |
| } |
| } |
| |
| /** |
| * hdd_suspend_wlan() - Driver suspend function |
| * @callback: Callback function to invoke when driver is ready to suspend |
| * @callbackContext: Context to pass back to @callback function |
| * |
| * Return: None. |
| */ |
| static void |
| hdd_suspend_wlan(void (*callback)(void *callbackContext, bool suspended), |
| void *callbackContext) |
| { |
| hdd_context_t *pHddCtx; |
| |
| CDF_STATUS status; |
| hdd_adapter_t *pAdapter = NULL; |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, "%s: WLAN being suspended by OS", |
| __func__); |
| |
| pHddCtx = cds_get_context(CDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HDD context is Null", |
| __func__); |
| return; |
| } |
| |
| if (pHddCtx->isLogpInProgress) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, |
| "%s: Ignore suspend wlan, LOGP in progress!", __func__); |
| return; |
| } |
| |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && CDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| /* stop all TX queues before suspend */ |
| hddLog(LOG1, FL("Disabling queues")); |
| wlan_hdd_netif_queue_control(pAdapter, WLAN_NETIF_TX_DISABLE, |
| WLAN_CONTROL_PATH); |
| |
| /* Send suspend notification down to firmware. |
| * |
| * N.B.: Keep this suspend indication at the end |
| * (before processing next adaptor). This indication |
| * is considered as trigger point to start WOW (if wow |
| * is enabled). |
| */ |
| hdd_conf_suspend_ind(pHddCtx, pAdapter, callback, |
| callbackContext); |
| |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| pHddCtx->hdd_wlan_suspended = true; |
| |
| return; |
| } |
| |
| /** |
| * hdd_resume_wlan() - Driver resume function |
| * |
| * Return: None. |
| */ |
| static void hdd_resume_wlan(void) |
| { |
| hdd_context_t *pHddCtx; |
| hdd_adapter_t *pAdapter = NULL; |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| CDF_STATUS status; |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, "%s: WLAN being resumed by OS", |
| __func__); |
| |
| pHddCtx = cds_get_context(CDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HDD context is Null", |
| __func__); |
| return; |
| } |
| |
| if (pHddCtx->isLogpInProgress) { |
| hddLog(CDF_TRACE_LEVEL_INFO, |
| "%s: Ignore resume wlan, LOGP in progress!", __func__); |
| return; |
| } |
| |
| pHddCtx->hdd_wlan_suspended = false; |
| |
| /*loop through all adapters. Concurrency */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| |
| while (NULL != pAdapterNode && CDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| |
| /* wake the tx queues */ |
| hddLog(LOG1, FL("Enabling queues")); |
| wlan_hdd_netif_queue_control(pAdapter, |
| WLAN_WAKE_ALL_NETIF_QUEUE, |
| WLAN_CONTROL_PATH); |
| |
| hdd_conf_resume_ind(pAdapter); |
| |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| hdd_ipa_resume(pHddCtx); |
| |
| return; |
| } |
| |
| /** |
| * DOC: SSR Timer |
| * |
| * When SSR is initiated, an SSR timer is started. Under normal |
| * circumstances SSR should complete amd the timer should be deleted |
| * before it fires. If the SSR timer does fire, it indicates SSR has |
| * taken too long, and our only recourse is to invoke the CDF_BUG() |
| * API which can allow a crashdump to be captured. |
| */ |
| |
| /** |
| * hdd_ssr_timer_init() - Initialize SSR Timer |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_init(void) |
| { |
| init_timer(&ssr_timer); |
| } |
| |
| /** |
| * hdd_ssr_timer_del() - Delete SSR Timer |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_del(void) |
| { |
| del_timer(&ssr_timer); |
| ssr_timer_started = false; |
| } |
| |
| /** |
| * hdd_ssr_timer_cb() - SSR Timer callback function |
| * @data: opaque data registered with timer infrastructure |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_cb(unsigned long data) |
| { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HDD SSR timer expired!", __func__); |
| CDF_BUG(0); |
| } |
| |
| /** |
| * hdd_ssr_timer_start() - Start SSR Timer |
| * @msec: Timer timeout value in milliseconds |
| * |
| * Return: None. |
| */ |
| static void hdd_ssr_timer_start(int msec) |
| { |
| if (ssr_timer_started) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: Trying to start SSR timer when " "it's running!", |
| __func__); |
| } |
| ssr_timer.expires = jiffies + msecs_to_jiffies(msec); |
| ssr_timer.function = hdd_ssr_timer_cb; |
| add_timer(&ssr_timer); |
| ssr_timer_started = true; |
| } |
| |
| /** |
| * hdd_wlan_shutdown() - HDD SSR shutdown function |
| * |
| * This function is called by the HIF to shutdown the driver during SSR. |
| * |
| * Return: CDF_STATUS_SUCCESS if the driver was shut down, |
| * or an error status otherwise |
| */ |
| CDF_STATUS hdd_wlan_shutdown(void) |
| { |
| CDF_STATUS cdf_status; |
| v_CONTEXT_t p_cds_context = NULL; |
| hdd_context_t *pHddCtx; |
| p_cds_sched_context cds_sched_context = NULL; |
| |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: WLAN driver shutting down!", |
| __func__); |
| |
| #ifdef WLAN_FEATURE_LPSS |
| wlan_hdd_send_status_pkg(NULL, NULL, 0, 0); |
| #endif |
| |
| /* If SSR never completes, then do kernel panic. */ |
| hdd_ssr_timer_init(); |
| hdd_ssr_timer_start(HDD_SSR_BRING_UP_TIME); |
| |
| /* Get the global CDS context. */ |
| p_cds_context = cds_get_global_context(); |
| if (!p_cds_context) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Global CDS context is Null", |
| __func__); |
| return CDF_STATUS_E_FAILURE; |
| } |
| |
| /* Get the HDD context. */ |
| pHddCtx = cds_get_context(CDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HDD context is Null", |
| __func__); |
| return CDF_STATUS_E_FAILURE; |
| } |
| |
| pHddCtx->isLogpInProgress = true; |
| cds_set_logp_in_progress(true); |
| |
| cds_clear_concurrent_session_count(); |
| |
| hdd_reset_all_adapters(pHddCtx); |
| |
| hdd_ipa_uc_ssr_deinit(); |
| |
| cds_sched_context = get_cds_sched_ctxt(); |
| |
| /* Wakeup all driver threads */ |
| if (true == pHddCtx->isMcThreadSuspended) { |
| complete(&cds_sched_context->ResumeMcEvent); |
| pHddCtx->isMcThreadSuspended = false; |
| } |
| #ifdef QCA_CONFIG_SMP |
| if (true == pHddCtx->is_ol_rx_thread_suspended) { |
| complete(&cds_sched_context->ol_resume_rx_event); |
| pHddCtx->is_ol_rx_thread_suspended = false; |
| } |
| #endif |
| |
| /* Stop all the threads; we do not want any messages to be a processed, |
| * any more and the best way to ensure that is to terminate the threads |
| * gracefully. |
| */ |
| /* Wait for MC to exit */ |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Shutting down MC thread", __func__); |
| set_bit(MC_SHUTDOWN_EVENT_MASK, &cds_sched_context->mcEventFlag); |
| set_bit(MC_POST_EVENT_MASK, &cds_sched_context->mcEventFlag); |
| wake_up_interruptible(&cds_sched_context->mcWaitQueue); |
| wait_for_completion(&cds_sched_context->McShutdown); |
| |
| #ifdef QCA_CONFIG_SMP |
| /* Wait for OL RX to exit */ |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Shutting down OL RX thread", |
| __func__); |
| unregister_hotcpu_notifier(cds_sched_context->cpu_hot_plug_notifier); |
| set_bit(RX_SHUTDOWN_EVENT_MASK, &cds_sched_context->ol_rx_event_flag); |
| set_bit(RX_POST_EVENT_MASK, &cds_sched_context->ol_rx_event_flag); |
| wake_up_interruptible(&cds_sched_context->ol_rx_wait_queue); |
| wait_for_completion(&cds_sched_context->ol_rx_shutdown); |
| cds_sched_context->ol_rx_thread = NULL; |
| cds_drop_rxpkt_by_staid(cds_sched_context, WLAN_MAX_STA_COUNT); |
| cds_free_ol_rx_pkt_freeq(cds_sched_context); |
| #endif |
| |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Doing WMA STOP", __func__); |
| cdf_status = wma_stop(p_cds_context, HAL_STOP_TYPE_RF_KILL); |
| |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| CDF_TRACE(CDF_MODULE_ID_CDF, CDF_TRACE_LEVEL_ERROR, |
| "%s: Failed to stop WMA", __func__); |
| CDF_ASSERT(CDF_IS_STATUS_SUCCESS(cdf_status)); |
| wma_setneedshutdown(p_cds_context); |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Doing SME STOP", __func__); |
| /* Stop SME - Cannot invoke cds_disable as cds_disable relies |
| * on threads being running to process the SYS Stop |
| */ |
| cdf_status = sme_stop(pHddCtx->hHal, HAL_STOP_TYPE_SYS_RESET); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| CDF_TRACE(CDF_MODULE_ID_CDF, CDF_TRACE_LEVEL_ERROR, |
| "%s: Failed to stop sme %d", __func__, cdf_status); |
| CDF_ASSERT(0); |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Doing MAC STOP", __func__); |
| /* Stop MAC (PE and HAL) */ |
| cdf_status = mac_stop(pHddCtx->hHal, HAL_STOP_TYPE_SYS_RESET); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| CDF_TRACE(CDF_MODULE_ID_CDF, CDF_TRACE_LEVEL_ERROR, |
| "%s: Failed to stop mac %d", __func__, cdf_status); |
| CDF_ASSERT(0); |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, "%s: Flush Queues", __func__); |
| /* Clean up message queues of TX, RX and MC thread */ |
| cds_sched_flush_mc_mqs(cds_sched_context); |
| |
| /* Deinit all the TX, RX and MC queues */ |
| cds_sched_deinit_mqs(cds_sched_context); |
| |
| hddLog(CDF_TRACE_LEVEL_INFO, "%s: Doing CDS Shutdown", __func__); |
| /* shutdown CDS */ |
| cds_shutdown(p_cds_context); |
| |
| /*mac context has already been released in mac_close call |
| so setting it to NULL in hdd context */ |
| pHddCtx->hHal = (tHalHandle) NULL; |
| |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: WLAN driver shutdown complete", |
| __func__); |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * hdd_wlan_re_init() - HDD SSR re-init function |
| * |
| * This function is called by the HIF to re-initialize the driver after SSR. |
| * |
| * Return: CDF_STATUS_SUCCESS if the driver was re-initialized, |
| * or an error status otherwise |
| */ |
| CDF_STATUS hdd_wlan_re_init(void *hif_sc) |
| { |
| CDF_STATUS cdf_status; |
| v_CONTEXT_t p_cds_context = NULL; |
| hdd_context_t *pHddCtx = NULL; |
| CDF_STATUS cdf_ret_status; |
| hdd_adapter_t *pAdapter; |
| int i; |
| |
| hdd_prevent_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| |
| /* Get the CDS context */ |
| p_cds_context = cds_get_global_context(); |
| if (p_cds_context == NULL) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: Failed cds_get_global_context", __func__); |
| goto err_re_init; |
| } |
| |
| /* Get the HDD context */ |
| pHddCtx = cds_get_context(CDF_MODULE_ID_HDD); |
| if (!pHddCtx) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HDD context is Null", |
| __func__); |
| goto err_re_init; |
| } |
| |
| if (!hif_sc) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: hif_sc is NULL", __func__); |
| goto err_re_init; |
| } |
| |
| ((cds_context_type *) p_cds_context)->pHIFContext = hif_sc; |
| |
| /* The driver should always be initialized in STA mode after SSR */ |
| hdd_set_conparam(0); |
| |
| /* Re-open CDS, it is a re-open b'se control transport was never closed. */ |
| cdf_status = cds_open(&p_cds_context, 0); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: cds_open failed", __func__); |
| goto err_re_init; |
| } |
| |
| /* Save the hal context in Adapter */ |
| pHddCtx->hHal = cds_get_context(CDF_MODULE_ID_SME); |
| if (NULL == pHddCtx->hHal) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: HAL context is null", |
| __func__); |
| goto err_cds_close; |
| } |
| |
| /* Set the SME configuration parameters. */ |
| cdf_status = hdd_set_sme_config(pHddCtx); |
| if (CDF_STATUS_SUCCESS != cdf_status) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: Failed hdd_set_sme_config", |
| __func__); |
| goto err_cds_close; |
| } |
| |
| cdf_status = cds_pre_enable(pHddCtx->pcds_context); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: cds_pre_enable failed", |
| __func__); |
| goto err_cds_close; |
| } |
| |
| ol_txrx_register_pause_cb(wlan_hdd_txrx_pause_cb); |
| |
| cdf_status = hdd_set_sme_chan_list(pHddCtx); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: Failed to init channel list", __func__); |
| goto err_cds_close; |
| } |
| |
| /* Apply the cfg.ini to cfg.dat */ |
| if (false == hdd_update_config_dat(pHddCtx)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: config update failed", |
| __func__); |
| goto err_cds_close; |
| } |
| |
| /* Set the MAC Address, currently this is used by HAL to add self sta. |
| * Remove this once self sta is added as part of session open. */ |
| cdf_ret_status = cfg_set_str(pHddCtx->hHal, WNI_CFG_STA_ID, |
| (uint8_t *) &pHddCtx->config-> |
| intfMacAddr[0], |
| sizeof(pHddCtx->config->intfMacAddr[0])); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_ret_status)) { |
| hddLog(CDF_TRACE_LEVEL_ERROR, "%s: Failed to set MAC Address. " |
| "HALStatus is %08d [x%08x]", __func__, cdf_ret_status, |
| cdf_ret_status); |
| goto err_cds_close; |
| } |
| |
| /* Start CDS which starts up the SME/MAC/HAL modules and everything else |
| Note: Firmware image will be read and downloaded inside cds_enable API */ |
| cdf_status = cds_enable(p_cds_context); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, "%s: cds_enable failed", __func__); |
| goto err_cds_close; |
| } |
| |
| cdf_status = hdd_post_cds_enable_config(pHddCtx); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: hdd_post_cds_enable_config failed", __func__); |
| goto err_cds_disable; |
| } |
| |
| /* Try to get an adapter from mode ID */ |
| pAdapter = hdd_get_adapter(pHddCtx, WLAN_HDD_INFRA_STATION); |
| if (!pAdapter) { |
| pAdapter = hdd_get_adapter(pHddCtx, WLAN_HDD_SOFTAP); |
| if (!pAdapter) { |
| pAdapter = hdd_get_adapter(pHddCtx, WLAN_HDD_IBSS); |
| if (!pAdapter) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, |
| "%s: Failed to get Adapter!", __func__); |
| } |
| } |
| } |
| |
| if (hdd_ipa_uc_ssr_reinit()) |
| hddLog(LOGE, "%s: HDD IPA UC reinit failed", __func__); |
| |
| /* Get WLAN Host/FW/HW version */ |
| if (pAdapter) |
| hdd_wlan_get_version(pAdapter, NULL, NULL); |
| |
| /* Pass FW version to HIF layer */ |
| hif_set_fw_info(hif_sc, pHddCtx->target_fw_version); |
| |
| /* Restart all adapters */ |
| hdd_start_all_adapters(pHddCtx); |
| |
| /* Reconfigure FW logs after SSR */ |
| if (pAdapter) { |
| if (pHddCtx->fw_log_settings.enable != 0) { |
| wma_cli_set_command(pAdapter->sessionId, |
| WMI_DBGLOG_MODULE_ENABLE, |
| pHddCtx->fw_log_settings.enable, |
| DBG_CMD); |
| } else { |
| wma_cli_set_command(pAdapter->sessionId, |
| WMI_DBGLOG_MODULE_DISABLE, |
| pHddCtx->fw_log_settings.enable, |
| DBG_CMD); |
| } |
| |
| if (pHddCtx->fw_log_settings.dl_report != 0) { |
| wma_cli_set_command(pAdapter->sessionId, |
| WMI_DBGLOG_REPORT_ENABLE, |
| pHddCtx->fw_log_settings. |
| dl_report, DBG_CMD); |
| |
| wma_cli_set_command(pAdapter->sessionId, |
| WMI_DBGLOG_TYPE, |
| pHddCtx->fw_log_settings. |
| dl_type, DBG_CMD); |
| |
| wma_cli_set_command(pAdapter->sessionId, |
| WMI_DBGLOG_LOG_LEVEL, |
| pHddCtx->fw_log_settings. |
| dl_loglevel, DBG_CMD); |
| |
| for (i = 0; i < MAX_MOD_LOGLEVEL; i++) { |
| if (pHddCtx->fw_log_settings. |
| dl_mod_loglevel[i] != 0) { |
| wma_cli_set_command( |
| pAdapter->sessionId, |
| WMI_DBGLOG_MOD_LOG_LEVEL, |
| pHddCtx->fw_log_settings. |
| dl_mod_loglevel[i], |
| DBG_CMD); |
| } |
| } |
| } |
| } |
| |
| pHddCtx->hdd_mcastbcast_filter_set = false; |
| pHddCtx->btCoexModeSet = false; |
| hdd_ssr_timer_del(); |
| |
| wlan_hdd_send_svc_nlink_msg(WLAN_SVC_FW_CRASHED_IND, NULL, 0); |
| |
| /* Allow the phone to go to sleep */ |
| hdd_allow_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| |
| sme_ext_scan_register_callback(pHddCtx->hHal, |
| wlan_hdd_cfg80211_extscan_callback); |
| sme_set_rssi_threshold_breached_cb(pHddCtx->hHal, hdd_rssi_threshold_breached); |
| |
| #ifdef WLAN_FEATURE_LPSS |
| wlan_hdd_send_all_scan_intf_info(pHddCtx); |
| wlan_hdd_send_version_pkg(pHddCtx->target_fw_version, |
| pHddCtx->target_hw_version, |
| pHddCtx->target_hw_name); |
| #endif |
| |
| hif_enable_power_gating(hif_sc); |
| hddLog(LOGE, |
| "%s: WLAN host driver reinitiation completed!", __func__); |
| goto success; |
| |
| err_cds_disable: |
| cds_disable(p_cds_context); |
| |
| err_cds_close: |
| cds_close(p_cds_context); |
| cds_sched_close(p_cds_context); |
| if (pHddCtx) { |
| /* Unregister the Net Device Notifier */ |
| unregister_netdevice_notifier(&hdd_netdev_notifier); |
| #ifdef WLAN_KD_READY_NOTIFIER |
| cnss_diag_notify_wlan_close(); |
| ptt_sock_deactivate_svc(); |
| #endif /* WLAN_KD_READY_NOTIFIER */ |
| nl_srv_exit(); |
| |
| /* Free up dynamically allocated members inside HDD Adapter */ |
| kfree(pHddCtx->config); |
| pHddCtx->config = NULL; |
| |
| wiphy_unregister(pHddCtx->wiphy); |
| wiphy_free(pHddCtx->wiphy); |
| |
| if (!CDF_IS_STATUS_SUCCESS(cdf_mutex_destroy( |
| &pHddCtx->hdd_conc_list_lock))) { |
| hdd_err("Failed to destroy hdd_conc_list_lock"); |
| /* Proceed and complete the clean up */ |
| } |
| } |
| |
| err_re_init: |
| /* Allow the phone to go to sleep */ |
| hdd_allow_suspend(WIFI_POWER_EVENT_WAKELOCK_DRIVER_REINIT); |
| CDF_BUG(0); |
| return -EPERM; |
| |
| success: |
| pHddCtx->isLogpInProgress = false; |
| return CDF_STATUS_SUCCESS; |
| } |
| |
| /** |
| * wlan_hdd_set_powersave() - Set powersave mode |
| * @adapter: adapter upon which the request was received |
| * @mode: desired powersave mode |
| * |
| * Return: 0 on success, non-zero on any error |
| */ |
| static int |
| wlan_hdd_set_powersave(hdd_adapter_t *adapter, enum hdd_power_mode mode) |
| { |
| tHalHandle hal; |
| hdd_context_t *hdd_ctx; |
| |
| if (NULL == adapter) { |
| hddLog(CDF_TRACE_LEVEL_FATAL, FL("Adapter NULL")); |
| return -ENODEV; |
| } |
| |
| hdd_ctx = WLAN_HDD_GET_CTX(adapter); |
| if (!hdd_ctx) { |
| hdd_err(FL("hdd context is NULL")); |
| return -EINVAL; |
| } |
| |
| hddLog(CDF_TRACE_LEVEL_INFO_HIGH, FL("power mode=%d"), mode); |
| hal = WLAN_HDD_GET_HAL_CTX(adapter); |
| |
| |
| if (DRIVER_POWER_MODE_ACTIVE == mode) { |
| hddLog(CDF_TRACE_LEVEL_INFO_HIGH, |
| FL("Wlan driver Entering Full Power")); |
| |
| /* |
| * Enter Full power command received from GUI |
| * this means we are disconnected |
| */ |
| sme_ps_enable_disable(hal, adapter->sessionId, SME_PS_DISABLE); |
| } else if (DRIVER_POWER_MODE_AUTO == mode) { |
| if ((WLAN_HDD_INFRA_STATION == adapter->device_mode) || |
| (WLAN_HDD_P2P_CLIENT == adapter->device_mode)) { |
| hddLog(LOG1, FL("Disabling Auto Power save timer")); |
| sme_ps_disable_auto_ps_timer(WLAN_HDD_GET_HAL_CTX |
| (adapter), |
| adapter->sessionId); |
| } |
| if (hdd_ctx->config && hdd_ctx->config->is_ps_enabled) { |
| hddLog(LOG1, FL("Wlan driver Entering Power save")); |
| |
| /* |
| * Enter Power Save command received from GUI |
| * this means DHCP is completed |
| */ |
| sme_ps_enable_disable(hal, adapter->sessionId, |
| SME_PS_ENABLE); |
| } else { |
| hddLog(CDF_TRACE_LEVEL_INFO_HIGH, |
| FL("Power Save is not enabled in the cfg")); |
| } |
| } |
| return 0; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_resume_wlan() - cfg80211 resume callback |
| * @wiphy: Pointer to wiphy |
| * |
| * This API is called when cfg80211 driver resumes driver updates |
| * latest sched_scan scan result(if any) to cfg80211 database |
| * |
| * Return: integer status |
| */ |
| static int __wlan_hdd_cfg80211_resume_wlan(struct wiphy *wiphy) |
| { |
| hdd_context_t *pHddCtx = wiphy_priv(wiphy); |
| hdd_adapter_t *pAdapter; |
| hdd_adapter_list_node_t *pAdapterNode, *pNext; |
| CDF_STATUS status = CDF_STATUS_SUCCESS; |
| int result; |
| p_cds_sched_context cds_sched_context = get_cds_sched_ctxt(); |
| |
| ENTER(); |
| |
| if (CDF_FTM_MODE == hdd_get_conparam()) { |
| hddLog(LOGE, FL("Command not allowed in FTM mode")); |
| return -EINVAL; |
| } |
| |
| result = wlan_hdd_validate_context(pHddCtx); |
| if (0 != result) { |
| hddLog(LOGE, FL("HDD context is not valid")); |
| return result; |
| } |
| #ifdef CONFIG_CNSS |
| cnss_request_bus_bandwidth(CNSS_BUS_WIDTH_MEDIUM); |
| #endif |
| |
| /* Resume MC thread */ |
| if (pHddCtx->isMcThreadSuspended) { |
| complete(&cds_sched_context->ResumeMcEvent); |
| pHddCtx->isMcThreadSuspended = false; |
| } |
| #ifdef QCA_CONFIG_SMP |
| /* Resume tlshim Rx thread */ |
| if (pHddCtx->is_ol_rx_thread_suspended) { |
| complete(&cds_sched_context->ol_resume_rx_event); |
| pHddCtx->is_ol_rx_thread_suspended = false; |
| } |
| #endif |
| hdd_resume_wlan(); |
| |
| MTRACE(cdf_trace(CDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_RESUME_WLAN, |
| NO_SESSION, pHddCtx->isWiphySuspended)); |
| spin_lock(&pHddCtx->schedScan_lock); |
| pHddCtx->isWiphySuspended = false; |
| if (true != pHddCtx->isSchedScanUpdatePending) { |
| spin_unlock(&pHddCtx->schedScan_lock); |
| hddLog(LOG1, FL("Return resume is not due to PNO indication")); |
| return 0; |
| } |
| /* Reset flag to avoid updatating cfg80211 data old results again */ |
| pHddCtx->isSchedScanUpdatePending = false; |
| spin_unlock(&pHddCtx->schedScan_lock); |
| |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| |
| while (NULL != pAdapterNode && CDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| if ((NULL != pAdapter) && |
| (WLAN_HDD_INFRA_STATION == pAdapter->device_mode)) { |
| if (0 != |
| wlan_hdd_cfg80211_update_bss(pHddCtx->wiphy, |
| pAdapter, 0)) { |
| hddLog(LOGW, FL("NO SCAN result")); |
| } else { |
| /* Acquire wakelock to handle the case where |
| * APP's tries to suspend immediately after |
| * updating the scan results. Whis results in |
| * app's is in suspended state and not able to |
| * process the connect request to AP |
| */ |
| hdd_prevent_suspend_timeout(2000, |
| WIFI_POWER_EVENT_WAKELOCK_RESUME_WLAN); |
| cfg80211_sched_scan_results(pHddCtx->wiphy); |
| } |
| |
| hddLog(LOG1, |
| FL("cfg80211 scan result database updated")); |
| |
| return result; |
| } |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| hddLog(LOG1, FL("Failed to find Adapter")); |
| return result; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_ready_to_suspend() - set cfg80211 ready to suspend event |
| * @callbackContext: Pointer to callback context |
| * @suspended: Suspend flag |
| * |
| * Return: none |
| */ |
| static void wlan_hdd_cfg80211_ready_to_suspend(void *callbackContext, |
| bool suspended) |
| { |
| hdd_context_t *pHddCtx = (hdd_context_t *) callbackContext; |
| pHddCtx->suspended = suspended; |
| complete(&pHddCtx->ready_to_suspend); |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_resume_wlan() - cfg80211 resume callback |
| * @wiphy: Pointer to wiphy |
| * |
| * This API is called when cfg80211 driver resumes driver updates |
| * latest sched_scan scan result(if any) to cfg80211 database |
| * |
| * Return: integer status |
| */ |
| int wlan_hdd_cfg80211_resume_wlan(struct wiphy *wiphy) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_resume_wlan(wiphy); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_suspend_wlan() - cfg80211 suspend callback |
| * @wiphy: Pointer to wiphy |
| * @wow: Pointer to wow |
| * |
| * This API is called when cfg80211 driver suspends |
| * |
| * Return: integer status |
| */ |
| static int __wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wow) |
| { |
| #ifdef QCA_CONFIG_SMP |
| #define RX_TLSHIM_SUSPEND_TIMEOUT 200 /* msecs */ |
| #endif |
| hdd_context_t *pHddCtx = wiphy_priv(wiphy); |
| p_cds_sched_context cds_sched_context = get_cds_sched_ctxt(); |
| hdd_adapter_list_node_t *pAdapterNode = NULL, *pNext = NULL; |
| hdd_adapter_t *pAdapter; |
| hdd_scaninfo_t *pScanInfo; |
| CDF_STATUS status; |
| int rc; |
| |
| ENTER(); |
| |
| if (CDF_FTM_MODE == hdd_get_conparam()) { |
| hddLog(LOGE, FL("Command not allowed in FTM mode")); |
| return -EINVAL; |
| } |
| |
| rc = wlan_hdd_validate_context(pHddCtx); |
| if (0 != rc) { |
| hddLog(LOGE, FL("HDD context is not valid")); |
| return rc; |
| } |
| |
| /* If RADAR detection is in progress (HDD), prevent suspend. The flag |
| * "dfs_cac_block_tx" is set to true when RADAR is found and stay true |
| * until CAC is done for a SoftAP which is in started state. |
| */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && CDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| if (WLAN_HDD_SOFTAP == pAdapter->device_mode) { |
| if (BSS_START == |
| WLAN_HDD_GET_HOSTAP_STATE_PTR(pAdapter)->bssState && |
| true == |
| WLAN_HDD_GET_AP_CTX_PTR(pAdapter)-> |
| dfs_cac_block_tx) { |
| hddLog(LOG1, |
| FL("RADAR detection in progress, do not allow suspend")); |
| return -EAGAIN; |
| } else if (!pHddCtx->config->enableSapSuspend) { |
| /* return -EOPNOTSUPP if SAP does not support |
| * suspend |
| */ |
| hddLog(LOGE, |
| FL("SAP does not support suspend!!")); |
| return -EOPNOTSUPP; |
| } |
| } else if (WLAN_HDD_P2P_GO == pAdapter->device_mode) { |
| if (!pHddCtx->config->enableSapSuspend) { |
| /* return -EOPNOTSUPP if GO does not support |
| * suspend |
| */ |
| hddLog(LOGE, |
| FL("GO does not support suspend!!")); |
| return -EOPNOTSUPP; |
| } |
| } |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| /* Stop ongoing scan on each interface */ |
| status = hdd_get_front_adapter(pHddCtx, &pAdapterNode); |
| while (NULL != pAdapterNode && CDF_STATUS_SUCCESS == status) { |
| pAdapter = pAdapterNode->pAdapter; |
| pScanInfo = &pAdapter->scan_info; |
| |
| if (sme_sta_in_middle_of_roaming |
| (pHddCtx->hHal, pAdapter->sessionId)) { |
| hddLog(LOG1, |
| FL("Roaming in progress, do not allow suspend")); |
| return -EAGAIN; |
| } |
| |
| if (pHddCtx->config->is_ps_enabled) { |
| if (sme_is_auto_ps_timer_running(pHddCtx->hHal, |
| pAdapter->sessionId)) { |
| hddLog(LOGE, |
| FL("Auto Power save timer is running; Do not allow suspend")); |
| return -EAGAIN; |
| } else { |
| sme_ps_enable_disable(pHddCtx->hHal, |
| pAdapter->sessionId, |
| SME_PS_ENABLE); |
| hddLog(LOG1, |
| FL("Auto PS timer is not running; allow suspend and enter into power save")); |
| } |
| } |
| |
| if (pScanInfo->mScanPending) { |
| INIT_COMPLETION(pScanInfo->abortscan_event_var); |
| hdd_abort_mac_scan(pHddCtx, pAdapter->sessionId, |
| eCSR_SCAN_ABORT_DEFAULT); |
| |
| status = |
| wait_for_completion_timeout(&pScanInfo-> |
| abortscan_event_var, |
| msecs_to_jiffies(WLAN_WAIT_TIME_ABORTSCAN)); |
| if (!status) { |
| hddLog(LOGE, |
| FL("Timeout occurred while waiting for abort scan")); |
| return -ETIME; |
| } |
| } |
| status = hdd_get_next_adapter(pHddCtx, pAdapterNode, &pNext); |
| pAdapterNode = pNext; |
| } |
| |
| /* |
| * Suspend IPA early before proceeding to suspend other entities like |
| * firmware to avoid any race conditions. |
| */ |
| if (hdd_ipa_suspend(pHddCtx)) { |
| hddLog(LOG1, FL("IPA not ready to suspend!")); |
| return -EAGAIN; |
| } |
| |
| /* Wait for the target to be ready for suspend */ |
| INIT_COMPLETION(pHddCtx->ready_to_suspend); |
| |
| hdd_suspend_wlan(&wlan_hdd_cfg80211_ready_to_suspend, pHddCtx); |
| |
| rc = wait_for_completion_timeout(&pHddCtx->ready_to_suspend, |
| msecs_to_jiffies(WLAN_WAIT_TIME_READY_TO_SUSPEND)); |
| if (!rc) { |
| hddLog(LOGE, FL("Failed to get ready to suspend")); |
| goto resume_tx; |
| } |
| |
| if (!pHddCtx->suspended) { |
| hddLog(LOGE, FL("Faied as suspend_status is wrong:%d"), |
| pHddCtx->suspended); |
| goto resume_tx; |
| } |
| |
| /* Suspend MC thread */ |
| set_bit(MC_SUSPEND_EVENT_MASK, &cds_sched_context->mcEventFlag); |
| wake_up_interruptible(&cds_sched_context->mcWaitQueue); |
| |
| /* Wait for suspend confirmation from MC thread */ |
| rc = wait_for_completion_timeout(&pHddCtx->mc_sus_event_var, |
| msecs_to_jiffies(WLAN_WAIT_TIME_MCTHREAD_SUSPEND)); |
| if (!rc) { |
| clear_bit(MC_SUSPEND_EVENT_MASK, |
| &cds_sched_context->mcEventFlag); |
| hddLog(LOGE, FL("Failed to stop mc thread")); |
| goto resume_tx; |
| } |
| |
| pHddCtx->isMcThreadSuspended = true; |
| |
| #ifdef QCA_CONFIG_SMP |
| /* Suspend tlshim rx thread */ |
| set_bit(RX_SUSPEND_EVENT_MASK, &cds_sched_context->ol_rx_event_flag); |
| wake_up_interruptible(&cds_sched_context->ol_rx_wait_queue); |
| rc = wait_for_completion_timeout(&cds_sched_context-> |
| ol_suspend_rx_event, |
| msecs_to_jiffies |
| (RX_TLSHIM_SUSPEND_TIMEOUT)); |
| if (!rc) { |
| clear_bit(RX_SUSPEND_EVENT_MASK, |
| &cds_sched_context->ol_rx_event_flag); |
| hddLog(LOGE, FL("Failed to stop tl_shim rx thread")); |
| goto resume_all; |
| } |
| pHddCtx->is_ol_rx_thread_suspended = true; |
| #endif |
| MTRACE(cdf_trace(CDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SUSPEND_WLAN, |
| NO_SESSION, pHddCtx->isWiphySuspended)); |
| pHddCtx->isWiphySuspended = true; |
| |
| #ifdef CONFIG_CNSS |
| cnss_request_bus_bandwidth(CNSS_BUS_WIDTH_NONE); |
| #endif |
| |
| EXIT(); |
| return 0; |
| |
| #ifdef QCA_CONFIG_SMP |
| resume_all: |
| |
| complete(&cds_sched_context->ResumeMcEvent); |
| pHddCtx->isMcThreadSuspended = false; |
| #endif |
| |
| resume_tx: |
| |
| hdd_resume_wlan(); |
| return -ETIME; |
| |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_suspend_wlan() - cfg80211 suspend callback |
| * @wiphy: Pointer to wiphy |
| * @wow: Pointer to wow |
| * |
| * This API is called when cfg80211 driver suspends |
| * |
| * Return: integer status |
| */ |
| int wlan_hdd_cfg80211_suspend_wlan(struct wiphy *wiphy, |
| struct cfg80211_wowlan *wow) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_suspend_wlan(wiphy, wow); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_set_power_mgmt() - set cfg80211 power management config |
| * @wiphy: Pointer to wiphy |
| * @dev: Pointer to network device |
| * @mode: Driver mode |
| * @timeout: Timeout value |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, bool mode, |
| int timeout) |
| { |
| hdd_adapter_t *pAdapter = WLAN_HDD_GET_PRIV_PTR(dev); |
| hdd_context_t *pHddCtx; |
| CDF_STATUS cdf_status; |
| int status; |
| |
| ENTER(); |
| |
| if (CDF_FTM_MODE == hdd_get_conparam()) { |
| hddLog(LOGE, FL("Command not allowed in FTM mode")); |
| return -EINVAL; |
| } |
| |
| MTRACE(cdf_trace(CDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SET_POWER_MGMT, |
| pAdapter->sessionId, timeout)); |
| |
| pHddCtx = WLAN_HDD_GET_CTX(pAdapter); |
| status = wlan_hdd_validate_context(pHddCtx); |
| |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is not valid")); |
| return status; |
| } |
| |
| if ((DRIVER_POWER_MODE_AUTO == !mode) && |
| (true == pHddCtx->hdd_wlan_suspended) && |
| (pHddCtx->config->fhostArpOffload) && |
| (eConnectionState_Associated == |
| (WLAN_HDD_GET_STATION_CTX_PTR(pAdapter))->conn_info.connState)) { |
| |
| hddLog(LOG1, |
| FL("offload: in cfg80211_set_power_mgmt, calling arp offload")); |
| cdf_status = hdd_conf_arp_offload(pAdapter, true); |
| if (!CDF_IS_STATUS_SUCCESS(cdf_status)) { |
| hddLog(LOG1, |
| FL("Failed to enable ARPOFFLOAD Feature %d"), |
| cdf_status); |
| } |
| } |
| |
| status = wlan_hdd_set_powersave(pAdapter, !mode); |
| |
| if (!mode) { |
| hddLog(LOGE, FL("DHCP start indicated through power save")); |
| sme_dhcp_start_ind(pHddCtx->hHal, pAdapter->device_mode, |
| pAdapter->macAddressCurrent.bytes, |
| pAdapter->sessionId); |
| } else { |
| hddLog(LOGW, FL("DHCP stop indicated through power save")); |
| sme_dhcp_stop_ind(pHddCtx->hHal, pAdapter->device_mode, |
| pAdapter->macAddressCurrent.bytes, |
| pAdapter->sessionId); |
| } |
| |
| EXIT(); |
| return status; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_set_power_mgmt() - set cfg80211 power management config |
| * @wiphy: Pointer to wiphy |
| * @dev: Pointer to network device |
| * @mode: Driver mode |
| * @timeout: Timeout value |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| int wlan_hdd_cfg80211_set_power_mgmt(struct wiphy *wiphy, |
| struct net_device *dev, bool mode, |
| int timeout) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_set_power_mgmt(wiphy, dev, mode, timeout); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_set_txpower() - set TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @type: TX power setting type |
| * @dbm: TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_set_txpower(struct wiphy *wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) |
| struct wireless_dev *wdev, |
| #endif |
| enum nl80211_tx_power_setting type, |
| int dbm) |
| { |
| hdd_context_t *pHddCtx = (hdd_context_t *) wiphy_priv(wiphy); |
| tHalHandle hHal = NULL; |
| tSirMacAddr bssid = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| tSirMacAddr selfMac = { 0xFF, 0xFF, 0xFF, 0xFF, 0xFF, 0xFF }; |
| int status; |
| |
| ENTER(); |
| |
| if (CDF_FTM_MODE == hdd_get_conparam()) { |
| hddLog(LOGE, FL("Command not allowed in FTM mode")); |
| return -EINVAL; |
| } |
| |
| MTRACE(cdf_trace(CDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_SET_TXPOWER, |
| NO_SESSION, type)); |
| |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is not valid")); |
| return status; |
| } |
| |
| hHal = pHddCtx->hHal; |
| |
| if (0 != sme_cfg_set_int(hHal, WNI_CFG_CURRENT_TX_POWER_LEVEL, dbm)) { |
| hddLog(LOGE, FL("sme_cfg_set_int failed for tx power %hu"), |
| dbm); |
| return -EIO; |
| } |
| |
| hddLog(LOG2, FL("Set tx power level %d dbm"), dbm); |
| |
| switch (type) { |
| /* Automatically determine transmit power */ |
| case NL80211_TX_POWER_AUTOMATIC: |
| /* Fall through */ |
| case NL80211_TX_POWER_LIMITED: /* Limit TX power by the mBm parameter */ |
| if (sme_set_max_tx_power(hHal, bssid, selfMac, dbm) != |
| CDF_STATUS_SUCCESS) { |
| hddLog(LOGE, FL("Setting maximum tx power failed")); |
| return -EIO; |
| } |
| break; |
| |
| case NL80211_TX_POWER_FIXED: /* Fix TX power to the mBm parameter */ |
| hddLog(LOGE, FL("NL80211_TX_POWER_FIXED not supported")); |
| return -EOPNOTSUPP; |
| break; |
| |
| default: |
| hddLog(LOGE, FL("Invalid power setting type %d"), type); |
| return -EIO; |
| } |
| |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_set_txpower() - set TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @type: TX power setting type |
| * @dbm: TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| int wlan_hdd_cfg80211_set_txpower(struct wiphy *wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) |
| struct wireless_dev *wdev, |
| #endif |
| enum nl80211_tx_power_setting type, |
| int dbm) |
| { |
| int ret; |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_set_txpower(wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) |
| wdev, |
| #endif |
| type, dbm); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |
| |
| /** |
| * __wlan_hdd_cfg80211_get_txpower() - get TX power |
| * @wiphy: Pointer to wiphy |
| * @wdev: Pointer to network device |
| * @dbm: Pointer to TX power in dbm |
| * |
| * Return: 0 for success, non-zero for failure |
| */ |
| static int __wlan_hdd_cfg80211_get_txpower(struct wiphy *wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) |
| struct wireless_dev *wdev, |
| #endif |
| int *dbm) |
| { |
| |
| hdd_adapter_t *pAdapter; |
| hdd_context_t *pHddCtx = (hdd_context_t *) wiphy_priv(wiphy); |
| int status; |
| |
| ENTER(); |
| |
| if (CDF_FTM_MODE == hdd_get_conparam()) { |
| hddLog(LOGE, FL("Command not allowed in FTM mode")); |
| return -EINVAL; |
| } |
| |
| status = wlan_hdd_validate_context(pHddCtx); |
| if (0 != status) { |
| hddLog(LOGE, FL("HDD context is not valid")); |
| *dbm = 0; |
| return status; |
| } |
| |
| pAdapter = hdd_get_adapter(pHddCtx, WLAN_HDD_INFRA_STATION); |
| if (NULL == pAdapter) { |
| hddLog(LOGE, FL("pAdapter is NULL")); |
| return -ENOENT; |
| } |
| |
| MTRACE(cdf_trace(CDF_MODULE_ID_HDD, |
| TRACE_CODE_HDD_CFG80211_GET_TXPOWER, |
| pAdapter->sessionId, pAdapter->device_mode)); |
| wlan_hdd_get_class_astats(pAdapter); |
| *dbm = pAdapter->hdd_stats.ClassA_stat.max_pwr; |
| |
| EXIT(); |
| return 0; |
| } |
| |
| /** |
| * wlan_hdd_cfg80211_get_txpower() - cfg80211 get power handler function |
| * @wiphy: Pointer to wiphy structure. |
| * @wdev: Pointer to wireless_dev structure. |
| * @dbm: dbm |
| * |
| * This is the cfg80211 get txpower handler function which invokes |
| * the internal function @__wlan_hdd_cfg80211_get_txpower with |
| * SSR protection. |
| * |
| * Return: 0 for success, error number on failure. |
| */ |
| int wlan_hdd_cfg80211_get_txpower(struct wiphy *wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) || defined(WITH_BACKPORTS) |
| struct wireless_dev *wdev, |
| #endif |
| int *dbm) |
| { |
| int ret; |
| |
| cds_ssr_protect(__func__); |
| ret = __wlan_hdd_cfg80211_get_txpower(wiphy, |
| #if LINUX_VERSION_CODE >= KERNEL_VERSION(3, 8, 0) || defined(WITH_BACKPORTS) |
| wdev, |
| #endif |
| dbm); |
| cds_ssr_unprotect(__func__); |
| |
| return ret; |
| } |