#include <linux/etherdevice.h>
#include <linux/ip.h>
#include <linux/if_arp.h>
+#include <linux/devcoredump.h>
#include <net/mac80211.h>
#include <net/ieee80211_radiotap.h>
#include <net/tcp.h>
#include "testmode.h"
#include "iwl-fw-error-dump.h"
#include "iwl-prph.h"
+#include "iwl-csr.h"
static const struct ieee80211_iface_limit iwl_mvm_limits[] = {
{
static const struct ieee80211_iface_combination iwl_mvm_iface_combinations[] = {
{
- .num_different_channels = 1,
+ .num_different_channels = 2,
.max_interfaces = 3,
.limits = iwl_mvm_limits,
.n_limits = ARRAY_SIZE(iwl_mvm_limits),
spin_unlock_bh(&mvm->refs_lock);
}
+bool iwl_mvm_ref_taken(struct iwl_mvm *mvm)
+{
+ int i;
+ bool taken = false;
+
+ if (!iwl_mvm_is_d0i3_supported(mvm))
+ return true;
+
+ spin_lock_bh(&mvm->refs_lock);
+ for (i = 0; i < IWL_MVM_REF_COUNT; i++) {
+ if (mvm->refs[i]) {
+ taken = true;
+ break;
+ }
+ }
+ spin_unlock_bh(&mvm->refs_lock);
+
+ return taken;
+}
+
int iwl_mvm_ref_sync(struct iwl_mvm *mvm, enum iwl_mvm_ref_type ref_type)
{
iwl_mvm_ref(mvm, ref_type);
hw->offchannel_tx_hw_queue = IWL_MVM_OFFCHANNEL_QUEUE;
hw->radiotap_mcs_details |= IEEE80211_RADIOTAP_MCS_HAVE_FEC |
IEEE80211_RADIOTAP_MCS_HAVE_STBC;
- hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC;
+ hw->radiotap_vht_details |= IEEE80211_RADIOTAP_VHT_KNOWN_STBC |
+ IEEE80211_RADIOTAP_VHT_KNOWN_BEAMFORMED;
hw->rate_control_algorithm = "iwl-mvm-rs";
/*
hw->flags |= IEEE80211_HW_MFP_CAPABLE;
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_UAPSD_SUPPORT &&
- IWL_UCODE_API(mvm->fw->ucode_ver) >= 9 &&
!iwlwifi_mod_params.uapsd_disable) {
hw->flags |= IEEE80211_HW_SUPPORTS_UAPSD;
hw->uapsd_queues = IWL_MVM_UAPSD_QUEUES;
hw->uapsd_max_sp_len = IWL_UAPSD_MAX_SP;
}
- if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
+ if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN ||
+ mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN) {
hw->flags |= IEEE80211_SINGLE_HW_SCAN_ON_ALL_BANDS;
+ hw->wiphy->features |=
+ NL80211_FEATURE_SCHED_SCAN_RANDOM_MAC_ADDR |
+ NL80211_FEATURE_SCAN_RANDOM_MAC_ADDR;
+ }
hw->sta_data_size = sizeof(struct iwl_mvm_sta);
hw->vif_data_size = sizeof(struct iwl_mvm_vif);
if (mvm->fw->ucode_capa.flags & IWL_UCODE_TLV_FLAGS_GO_UAPSD)
hw->wiphy->flags |= WIPHY_FLAG_AP_UAPSD;
- if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_CSA_FLOW)
- hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
+ hw->wiphy->flags |= WIPHY_FLAG_HAS_CHANNEL_SWITCH;
hw->wiphy->iface_combinations = iwl_mvm_iface_combinations;
hw->wiphy->n_iface_combinations =
hw->wiphy->max_remain_on_channel_duration = 10000;
hw->max_listen_interval = IWL_CONN_MAX_LISTEN_INTERVAL;
+ /* we can compensate an offset of up to 3 channels = 15 MHz */
+ hw->wiphy->max_adj_channel_rssi_comp = 3 * 5;
/* Extract MAC address */
memcpy(mvm->addresses[0].addr, mvm->nvm_data->hw_addr, ETH_ALEN);
NL80211_FEATURE_LOW_PRIORITY_SCAN |
NL80211_FEATURE_P2P_GO_OPPPS |
NL80211_FEATURE_DYNAMIC_SMPS |
- NL80211_FEATURE_STATIC_SMPS;
+ NL80211_FEATURE_STATIC_SMPS |
+ NL80211_FEATURE_SUPPORTS_WMM_ADMISSION;
if (mvm->fw->ucode_capa.capa[0] &
IWL_UCODE_TLV_CAPA_TXPOWER_INSERTION_SUPPORT)
device_can_wakeup(mvm->trans->dev)) {
mvm->wowlan.flags = WIPHY_WOWLAN_ANY;
hw->wiphy->wowlan = &mvm->wowlan;
- } else if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
+ }
+
+ if (mvm->fw->img[IWL_UCODE_WOWLAN].sec[0].len &&
mvm->trans->ops->d3_suspend &&
mvm->trans->ops->d3_resume &&
device_can_wakeup(mvm->trans->dev)) {
- mvm->wowlan.flags = WIPHY_WOWLAN_MAGIC_PKT |
- WIPHY_WOWLAN_DISCONNECT |
- WIPHY_WOWLAN_EAP_IDENTITY_REQ |
- WIPHY_WOWLAN_RFKILL_RELEASE;
+ mvm->wowlan.flags |= WIPHY_WOWLAN_MAGIC_PKT |
+ WIPHY_WOWLAN_DISCONNECT |
+ WIPHY_WOWLAN_EAP_IDENTITY_REQ |
+ WIPHY_WOWLAN_RFKILL_RELEASE |
+ WIPHY_WOWLAN_NET_DETECT;
if (!iwlwifi_mod_params.sw_crypto)
mvm->wowlan.flags |= WIPHY_WOWLAN_SUPPORTS_GTK_REKEY |
WIPHY_WOWLAN_GTK_REKEY_FAILURE |
mvm->wowlan.n_patterns = IWL_WOWLAN_MAX_PATTERNS;
mvm->wowlan.pattern_min_len = IWL_WOWLAN_MIN_PATTERN_LEN;
mvm->wowlan.pattern_max_len = IWL_WOWLAN_MAX_PATTERN_LEN;
+ mvm->wowlan.max_nd_match_sets = IWL_SCAN_MAX_PROFILES;
mvm->wowlan.tcp = &iwl_mvm_wowlan_tcp_support;
hw->wiphy->wowlan = &mvm->wowlan;
}
if (ret)
return ret;
+ if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_TDLS_SUPPORT) {
+ IWL_DEBUG_TDLS(mvm, "TDLS supported\n");
+ hw->wiphy->flags |= WIPHY_FLAG_SUPPORTS_TDLS;
+ }
+
+ if (mvm->fw->ucode_capa.capa[0] &
+ IWL_UCODE_TLV_CAPA_TDLS_CHANNEL_SWITCH) {
+ IWL_DEBUG_TDLS(mvm, "TDLS channel switch supported\n");
+ hw->wiphy->features |= NL80211_FEATURE_TDLS_CHANNEL_SWITCH;
+ }
+
ret = ieee80211_register_hw(mvm->hw);
if (ret)
iwl_mvm_leds_exit(mvm);
memset(&mvmvif->bf_data, 0, sizeof(mvmvif->bf_data));
}
-#ifdef CONFIG_IWLWIFI_DEBUGFS
+static ssize_t iwl_mvm_read_coredump(char *buffer, loff_t offset, size_t count,
+ const void *data, size_t datalen)
+{
+ const struct iwl_mvm_dump_ptrs *dump_ptrs = data;
+ ssize_t bytes_read;
+ ssize_t bytes_read_trans;
+
+ if (offset < dump_ptrs->op_mode_len) {
+ bytes_read = min_t(ssize_t, count,
+ dump_ptrs->op_mode_len - offset);
+ memcpy(buffer, (u8 *)dump_ptrs->op_mode_ptr + offset,
+ bytes_read);
+ offset += bytes_read;
+ count -= bytes_read;
+
+ if (count == 0)
+ return bytes_read;
+ } else {
+ bytes_read = 0;
+ }
+
+ if (!dump_ptrs->trans_ptr)
+ return bytes_read;
+
+ offset -= dump_ptrs->op_mode_len;
+ bytes_read_trans = min_t(ssize_t, count,
+ dump_ptrs->trans_ptr->len - offset);
+ memcpy(buffer + bytes_read,
+ (u8 *)dump_ptrs->trans_ptr->data + offset,
+ bytes_read_trans);
+
+ return bytes_read + bytes_read_trans;
+}
+
+static void iwl_mvm_free_coredump(const void *data)
+{
+ const struct iwl_mvm_dump_ptrs *fw_error_dump = data;
+
+ vfree(fw_error_dump->op_mode_ptr);
+ vfree(fw_error_dump->trans_ptr);
+ kfree(fw_error_dump);
+}
+
void iwl_mvm_fw_error_dump(struct iwl_mvm *mvm)
{
- static char *env[] = { "DRIVER=iwlwifi", "EVENT=error_dump", NULL };
struct iwl_fw_error_dump_file *dump_file;
struct iwl_fw_error_dump_data *dump_data;
struct iwl_fw_error_dump_info *dump_info;
+ struct iwl_fw_error_dump_mem *dump_mem;
struct iwl_mvm_dump_ptrs *fw_error_dump;
- const struct fw_img *img;
u32 sram_len, sram_ofs;
u32 file_len, rxf_len;
unsigned long flags;
int reg_val;
+ u32 smem_len = mvm->cfg->smem_len;
lockdep_assert_held(&mvm->mutex);
- if (mvm->fw_error_dump)
- return;
+ /* W/A for 8000 HW family A-step */
+ if (mvm->cfg->smem_len &&
+ mvm->cfg->device_family == IWL_DEVICE_FAMILY_8000 &&
+ CSR_HW_REV_STEP(mvm->trans->hw_rev) == SILICON_A_STEP)
+ smem_len = 0x38000;
- fw_error_dump = kzalloc(sizeof(*mvm->fw_error_dump), GFP_KERNEL);
+ fw_error_dump = kzalloc(sizeof(*fw_error_dump), GFP_KERNEL);
if (!fw_error_dump)
return;
- img = &mvm->fw->img[mvm->cur_ucode];
- sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
- sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
+ /* SRAM - include stack CCM if driver knows the values for it */
+ if (!mvm->cfg->dccm_offset || !mvm->cfg->dccm_len) {
+ const struct fw_img *img;
+
+ img = &mvm->fw->img[mvm->cur_ucode];
+ sram_ofs = img->sec[IWL_UCODE_SECTION_DATA].offset;
+ sram_len = img->sec[IWL_UCODE_SECTION_DATA].len;
+ } else {
+ sram_ofs = mvm->cfg->dccm_offset;
+ sram_len = mvm->cfg->dccm_len;
+ }
/* reading buffer size */
reg_val = iwl_trans_read_prph(mvm->trans, RXF_SIZE_ADDR);
file_len = sizeof(*dump_file) +
sizeof(*dump_data) * 3 +
- sram_len +
+ sram_len + sizeof(*dump_mem) +
rxf_len +
sizeof(*dump_info);
+ /* Make room for the SMEM, if it exists */
+ if (smem_len)
+ file_len += sizeof(*dump_data) + sizeof(*dump_mem) + smem_len;
+
dump_file = vzalloc(file_len);
if (!dump_file) {
kfree(fw_error_dump);
mvm->cfg->device_family == IWL_DEVICE_FAMILY_7000 ?
cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_7) :
cpu_to_le32(IWL_FW_ERROR_DUMP_FAMILY_8);
+ dump_info->hw_step = cpu_to_le32(CSR_HW_REV_STEP(mvm->trans->hw_rev));
memcpy(dump_info->fw_human_readable, mvm->fw->human_readable,
sizeof(dump_info->fw_human_readable));
strncpy(dump_info->dev_human_readable, mvm->cfg->name,
}
dump_data = iwl_fw_error_next_data(dump_data);
- dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_SRAM);
- dump_data->len = cpu_to_le32(sram_len);
- iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_data->data,
+ dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
+ dump_data->len = cpu_to_le32(sram_len + sizeof(*dump_mem));
+ dump_mem = (void *)dump_data->data;
+ dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SRAM);
+ dump_mem->offset = cpu_to_le32(sram_ofs);
+ iwl_trans_read_mem_bytes(mvm->trans, sram_ofs, dump_mem->data,
sram_len);
+ if (smem_len) {
+ dump_data = iwl_fw_error_next_data(dump_data);
+ dump_data->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM);
+ dump_data->len = cpu_to_le32(smem_len + sizeof(*dump_mem));
+ dump_mem = (void *)dump_data->data;
+ dump_mem->type = cpu_to_le32(IWL_FW_ERROR_DUMP_MEM_SMEM);
+ dump_mem->offset = cpu_to_le32(mvm->cfg->smem_offset);
+ iwl_trans_read_mem_bytes(mvm->trans, mvm->cfg->smem_offset,
+ dump_mem->data, smem_len);
+ }
+
fw_error_dump->trans_ptr = iwl_trans_dump_data(mvm->trans);
fw_error_dump->op_mode_len = file_len;
if (fw_error_dump->trans_ptr)
file_len += fw_error_dump->trans_ptr->len;
dump_file->file_len = cpu_to_le32(file_len);
- mvm->fw_error_dump = fw_error_dump;
- /* notify the userspace about the error we had */
- kobject_uevent_env(&mvm->hw->wiphy->dev.kobj, KOBJ_CHANGE, env);
+ dev_coredumpm(mvm->trans->dev, THIS_MODULE, fw_error_dump, 0,
+ GFP_KERNEL, iwl_mvm_read_coredump, iwl_mvm_free_coredump);
}
-#endif
static void iwl_mvm_restart_cleanup(struct iwl_mvm *mvm)
{
- iwl_mvm_fw_error_dump(mvm);
+ /* clear the D3 reconfig, we only need it to avoid dumping a
+ * firmware coredump on reconfiguration, we shouldn't do that
+ * on D3->D0 transition
+ */
+ if (!test_and_clear_bit(IWL_MVM_STATUS_D3_RECONFIG, &mvm->status))
+ iwl_mvm_fw_error_dump(mvm);
+
+ /* cleanup all stale references (scan, roc), but keep the
+ * ucode_down ref until reconfig is complete
+ */
+ iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
iwl_trans_stop_device(mvm->trans);
iwl_mvm_reset_phy_ctxts(mvm);
memset(mvm->fw_key_table, 0, sizeof(mvm->fw_key_table));
memset(mvm->sta_drained, 0, sizeof(mvm->sta_drained));
+ memset(mvm->tfd_drained, 0, sizeof(mvm->tfd_drained));
memset(&mvm->last_bt_notif, 0, sizeof(mvm->last_bt_notif));
memset(&mvm->last_bt_notif_old, 0, sizeof(mvm->last_bt_notif_old));
memset(&mvm->last_bt_ci_cmd, 0, sizeof(mvm->last_bt_ci_cmd));
ieee80211_wake_queues(mvm->hw);
- /* cleanup all stale references (scan, roc), but keep the
- * ucode_down ref until reconfig is complete */
- iwl_mvm_unref_all_except(mvm, IWL_MVM_REF_UCODE_DOWN);
-
/* clear any stale d0i3 state */
clear_bit(IWL_MVM_STATUS_IN_D0I3, &mvm->status);
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
int ret;
+ /* Some hw restart cleanups must not hold the mutex */
+ if (test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status)) {
+ /*
+ * Make sure we are out of d0i3. This is needed
+ * to make sure the reference accounting is correct
+ * (and there is no stale d0i3_exit_work).
+ */
+ wait_event_timeout(mvm->d0i3_exit_waitq,
+ !test_bit(IWL_MVM_STATUS_IN_D0I3,
+ &mvm->status),
+ HZ);
+ }
+
mutex_lock(&mvm->mutex);
ret = __iwl_mvm_mac_start(mvm);
mutex_unlock(&mvm->mutex);
return ret;
}
-static void iwl_mvm_mac_restart_complete(struct ieee80211_hw *hw)
+static void iwl_mvm_restart_complete(struct iwl_mvm *mvm)
{
- struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
int ret;
mutex_lock(&mvm->mutex);
/* allow transport/FW low power modes */
iwl_mvm_unref(mvm, IWL_MVM_REF_UCODE_DOWN);
+ /*
+ * If we have TDLS peers, remove them. We don't know the last seqno/PN
+ * of packets the FW sent out, so we must reconnect.
+ */
+ iwl_mvm_teardown_tdls_peers(mvm);
+
mutex_unlock(&mvm->mutex);
}
+static void iwl_mvm_resume_complete(struct iwl_mvm *mvm)
+{
+ bool exit_now;
+
+ if (!iwl_mvm_is_d0i3_supported(mvm))
+ return;
+
+ mutex_lock(&mvm->d0i3_suspend_mutex);
+ __clear_bit(D0I3_DEFER_WAKEUP, &mvm->d0i3_suspend_flags);
+ exit_now = __test_and_clear_bit(D0I3_PENDING_WAKEUP,
+ &mvm->d0i3_suspend_flags);
+ mutex_unlock(&mvm->d0i3_suspend_mutex);
+
+ if (exit_now) {
+ IWL_DEBUG_RPM(mvm, "Run deferred d0i3 exit\n");
+ _iwl_mvm_exit_d0i3(mvm);
+ }
+
+ if (mvm->trans->d0i3_mode == IWL_D0I3_MODE_ON_SUSPEND)
+ if (!wait_event_timeout(mvm->d0i3_exit_waitq,
+ !test_bit(IWL_MVM_STATUS_IN_D0I3,
+ &mvm->status),
+ HZ))
+ WARN_ONCE(1, "D0i3 exit on resume timed out\n");
+}
+
+static void
+iwl_mvm_mac_reconfig_complete(struct ieee80211_hw *hw,
+ enum ieee80211_reconfig_type reconfig_type)
+{
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+
+ switch (reconfig_type) {
+ case IEEE80211_RECONFIG_TYPE_RESTART:
+ iwl_mvm_restart_complete(mvm);
+ break;
+ case IEEE80211_RECONFIG_TYPE_SUSPEND:
+ iwl_mvm_resume_complete(mvm);
+ break;
+ }
+}
+
void __iwl_mvm_mac_stop(struct iwl_mvm *mvm)
{
lockdep_assert_held(&mvm->mutex);
- /* disallow low power states when the FW is down */
- iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
+ /*
+ * Disallow low power states when the FW is down by taking
+ * the UCODE_DOWN ref. in case of ongoing hw restart the
+ * ref is already taken, so don't take it again.
+ */
+ if (!test_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status))
+ iwl_mvm_ref(mvm, IWL_MVM_REF_UCODE_DOWN);
/* async_handlers_wk is now blocked */
/* the fw is stopped, the aux sta is dead: clean up driver state */
iwl_mvm_del_aux_sta(mvm);
+ /*
+ * Clear IN_HW_RESTART flag when stopping the hw (as restart_complete()
+ * won't be called in this case).
+ */
+ clear_bit(IWL_MVM_STATUS_IN_HW_RESTART, &mvm->status);
+
mvm->ucode_loaded = false;
}
static void iwl_mvm_prepare_mac_removal(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
- u32 tfd_msk = iwl_mvm_mac_get_queues_mask(mvm, vif);
+ u32 tfd_msk = iwl_mvm_mac_get_queues_mask(vif);
if (tfd_msk) {
mutex_lock(&mvm->mutex);
.cmd = cmd,
};
+ if (IWL_MVM_FW_BCAST_FILTER_PASS_ALL)
+ return false;
+
memset(cmd, 0, sizeof(*cmd));
cmd->max_bcast_filters = ARRAY_SIZE(cmd->filters);
cmd->max_macs = ARRAY_SIZE(cmd->macs);
req->n_channels > mvm->fw->ucode_capa.n_scan_channels)
return -EINVAL;
- ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
- if (ret)
- return ret;
+ if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+ ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_SCHED);
+ if (ret)
+ return ret;
+ }
mutex_lock(&mvm->mutex);
iwl_mvm_ref(mvm, IWL_MVM_REF_SCAN);
- if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
+ if (mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)
+ ret = iwl_mvm_scan_umac(mvm, vif, hw_req);
+ else if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
ret = iwl_mvm_unified_scan_lmac(mvm, vif, hw_req);
else
ret = iwl_mvm_scan_request(mvm, vif, req);
struct ieee80211_sta *sta)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
- struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+ struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
/*
* This is called before mac80211 does RCU synchronisation,
out_unlock:
mutex_unlock(&mvm->mutex);
+ if (sta->tdls && ret == 0) {
+ if (old_state == IEEE80211_STA_NOTEXIST &&
+ new_state == IEEE80211_STA_NONE)
+ ieee80211_reserve_tid(sta, IWL_MVM_TDLS_FW_TID);
+ else if (old_state == IEEE80211_STA_NONE &&
+ new_state == IEEE80211_STA_NOTEXIST)
+ ieee80211_unreserve_tid(sta, IWL_MVM_TDLS_FW_TID);
+ }
+
return ret;
}
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
int ret;
- ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
- if (ret)
- return ret;
+ if (!(mvm->fw->ucode_capa.capa[0] & IWL_UCODE_TLV_CAPA_UMAC_SCAN)) {
+ ret = iwl_mvm_cancel_scan_wait_notif(mvm, IWL_MVM_SCAN_OS);
+ if (ret)
+ return ret;
+ }
mutex_lock(&mvm->mutex);
goto out;
}
- mvm->scan_status = IWL_MVM_SCAN_SCHED;
-
- if (!(mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)) {
- ret = iwl_mvm_config_sched_scan(mvm, vif, req, ies);
- if (ret)
- goto err;
- }
-
- ret = iwl_mvm_config_sched_scan_profiles(mvm, req);
+ ret = iwl_mvm_scan_offload_start(mvm, vif, req, ies);
if (ret)
- goto err;
+ mvm->scan_status = IWL_MVM_SCAN_NONE;
- if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_API_LMAC_SCAN)
- ret = iwl_mvm_unified_sched_scan_lmac(mvm, vif, req, ies);
- else
- ret = iwl_mvm_sched_scan_start(mvm, req);
-
- if (!ret)
- goto out;
-err:
- mvm->scan_status = IWL_MVM_SCAN_NONE;
out:
mutex_unlock(&mvm->mutex);
return ret;
iwl_mvm_wait_for_async_handlers(mvm);
return ret;
+
}
static int iwl_mvm_mac_set_key(struct ieee80211_hw *hw,
break;
case WLAN_CIPHER_SUITE_WEP40:
case WLAN_CIPHER_SUITE_WEP104:
- /*
- * Support for TX only, at least for now, so accept
- * the key and do nothing else. Then mac80211 will
- * pass it for TX but we don't have to use it for RX.
+ /* For non-client mode, only use WEP keys for TX as we probably
+ * don't have a station yet anyway and would then have to keep
+ * track of the keys, linking them to each of the clients/peers
+ * as they appear. For now, don't do that, for performance WEP
+ * offload doesn't really matter much, but we need it for some
+ * other offload features in client mode.
*/
- return 0;
+ if (vif->type != NL80211_IFTYPE_STATION)
+ return 0;
+ break;
default:
/* currently FW supports only one optional cipher scheme */
if (hw->n_cipher_schemes &&
IWL_DEBUG_MAC80211(mvm, "enter\n");
mutex_lock(&mvm->mutex);
- iwl_mvm_stop_p2p_roc(mvm);
+ iwl_mvm_stop_roc(mvm);
mutex_unlock(&mvm->mutex);
IWL_DEBUG_MAC80211(mvm, "leave\n");
switch (vif->type) {
case NL80211_IFTYPE_AP:
- /* Unless it's a CSA flow we have nothing to do here */
- if (vif->csa_active) {
+ /* only needed if we're switching chanctx (i.e. during CSA) */
+ if (switching_chanctx) {
mvmvif->ap_ibss_active = true;
break;
}
}
/* Handle binding during CSA */
- if ((vif->type == NL80211_IFTYPE_AP) ||
- (switching_chanctx && (vif->type == NL80211_IFTYPE_STATION))) {
+ if (vif->type == NL80211_IFTYPE_AP) {
iwl_mvm_update_quotas(mvm, NULL);
iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
}
- if (vif->csa_active && vif->type == NL80211_IFTYPE_STATION) {
- struct iwl_mvm_sta *mvmsta;
+ if (switching_chanctx && vif->type == NL80211_IFTYPE_STATION) {
+ u32 duration = 2 * vif->bss_conf.beacon_int;
- mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
- mvmvif->ap_sta_id);
+ /* iwl_mvm_protect_session() reads directly from the
+ * device (the system time), so make sure it is
+ * available.
+ */
+ ret = iwl_mvm_ref_sync(mvm, IWL_MVM_REF_PROTECT_CSA);
+ if (ret)
+ goto out_remove_binding;
- if (WARN_ON(!mvmsta))
- goto out;
+ /* Protect the session to make sure we hear the first
+ * beacon on the new channel.
+ */
+ iwl_mvm_protect_session(mvm, vif, duration, duration,
+ vif->bss_conf.beacon_int / 2,
+ true);
- /* TODO: only re-enable after the first beacon */
- iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
+ iwl_mvm_unref(mvm, IWL_MVM_REF_PROTECT_CSA);
+
+ iwl_mvm_update_quotas(mvm, NULL);
}
goto out;
{
struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
struct ieee80211_vif *disabled_vif = NULL;
- struct iwl_mvm_sta *mvmsta;
lockdep_assert_held(&mvm->mutex);
break;
case NL80211_IFTYPE_AP:
/* This part is triggered only during CSA */
- if (!vif->csa_active || !mvmvif->ap_ibss_active)
+ if (!switching_chanctx || !mvmvif->ap_ibss_active)
goto out;
+ mvmvif->csa_countdown = false;
+
/* Set CS bit on all the stations */
iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, true);
disabled_vif = vif;
- mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
- mvmvif->ap_sta_id);
-
- if (!WARN_ON(!mvmsta))
- iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, true);
-
iwl_mvm_mac_ctxt_changed(mvm, vif, true, NULL);
break;
default:
mutex_unlock(&mvm->mutex);
}
-static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
- struct ieee80211_vif_chanctx_switch *vifs,
- int n_vifs,
- enum ieee80211_chanctx_switch_mode mode)
+static int
+iwl_mvm_switch_vif_chanctx_swap(struct iwl_mvm *mvm,
+ struct ieee80211_vif_chanctx_switch *vifs)
{
- struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
int ret;
- /* we only support SWAP_CONTEXTS and with a single-vif right now */
- if (mode != CHANCTX_SWMODE_SWAP_CONTEXTS || n_vifs > 1)
- return -EOPNOTSUPP;
-
mutex_lock(&mvm->mutex);
__iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
__iwl_mvm_remove_chanctx(mvm, vifs[0].old_ctx);
__iwl_mvm_remove_chanctx(mvm, vifs[0].new_ctx);
out_reassign:
- ret = __iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx);
- if (ret) {
+ if (__iwl_mvm_add_chanctx(mvm, vifs[0].old_ctx)) {
IWL_ERR(mvm, "failed to add old_ctx back after failure.\n");
goto out_restart;
}
- ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
+ if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
+ true)) {
+ IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
+ goto out_restart;
+ }
+
+ goto out;
+
+out_restart:
+ /* things keep failing, better restart the hw */
+ iwl_mvm_nic_restart(mvm, false);
+
+out:
+ mutex_unlock(&mvm->mutex);
+
+ return ret;
+}
+
+static int
+iwl_mvm_switch_vif_chanctx_reassign(struct iwl_mvm *mvm,
+ struct ieee80211_vif_chanctx_switch *vifs)
+{
+ int ret;
+
+ mutex_lock(&mvm->mutex);
+ __iwl_mvm_unassign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx, true);
+
+ ret = __iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].new_ctx,
true);
if (ret) {
+ IWL_ERR(mvm,
+ "failed to assign new_ctx during channel switch\n");
+ goto out_reassign;
+ }
+
+ goto out;
+
+out_reassign:
+ if (__iwl_mvm_assign_vif_chanctx(mvm, vifs[0].vif, vifs[0].old_ctx,
+ true)) {
IWL_ERR(mvm, "failed to reassign old_ctx after failure.\n");
goto out_restart;
}
out:
mutex_unlock(&mvm->mutex);
+
+ return ret;
+}
+
+static int iwl_mvm_switch_vif_chanctx(struct ieee80211_hw *hw,
+ struct ieee80211_vif_chanctx_switch *vifs,
+ int n_vifs,
+ enum ieee80211_chanctx_switch_mode mode)
+{
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+ int ret;
+
+ /* we only support a single-vif right now */
+ if (n_vifs > 1)
+ return -EOPNOTSUPP;
+
+ switch (mode) {
+ case CHANCTX_SWMODE_SWAP_CONTEXTS:
+ ret = iwl_mvm_switch_vif_chanctx_swap(mvm, vifs);
+ break;
+ case CHANCTX_SWMODE_REASSIGN_VIF:
+ ret = iwl_mvm_switch_vif_chanctx_reassign(mvm, vifs);
+ break;
+ default:
+ ret = -EOPNOTSUPP;
+ break;
+ }
+
return ret;
}
bool set)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
- struct iwl_mvm_sta *mvm_sta = (void *)sta->drv_priv;
+ struct iwl_mvm_sta *mvm_sta = iwl_mvm_sta_from_mac80211(sta);
if (!mvm_sta || !mvm_sta->vif) {
IWL_ERR(mvm, "Station is not associated to a vif\n");
}
#endif
-static void iwl_mvm_channel_switch_beacon(struct ieee80211_hw *hw,
- struct ieee80211_vif *vif,
- struct cfg80211_chan_def *chandef)
+static void iwl_mvm_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_channel_switch *chsw)
+{
+ /* By implementing this operation, we prevent mac80211 from
+ * starting its own channel switch timer, so that we can call
+ * ieee80211_chswitch_done() ourselves at the right time
+ * (which is when the absence time event starts).
+ */
+
+ IWL_DEBUG_MAC80211(IWL_MAC80211_GET_MVM(hw),
+ "dummy channel switch op\n");
+}
+
+static int iwl_mvm_pre_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif,
+ struct ieee80211_channel_switch *chsw)
{
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct ieee80211_vif *csa_vif;
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ u32 apply_time;
+ int ret;
mutex_lock(&mvm->mutex);
- csa_vif = rcu_dereference_protected(mvm->csa_vif,
- lockdep_is_held(&mvm->mutex));
- if (WARN(csa_vif && csa_vif->csa_active,
- "Another CSA is already in progress"))
+ IWL_DEBUG_MAC80211(mvm, "pre CSA to freq %d\n",
+ chsw->chandef.center_freq1);
+
+ switch (vif->type) {
+ case NL80211_IFTYPE_AP:
+ csa_vif =
+ rcu_dereference_protected(mvm->csa_vif,
+ lockdep_is_held(&mvm->mutex));
+ if (WARN_ONCE(csa_vif && csa_vif->csa_active,
+ "Another CSA is already in progress")) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ rcu_assign_pointer(mvm->csa_vif, vif);
+
+ if (WARN_ONCE(mvmvif->csa_countdown,
+ "Previous CSA countdown didn't complete")) {
+ ret = -EBUSY;
+ goto out_unlock;
+ }
+
+ break;
+ case NL80211_IFTYPE_STATION:
+ /* Schedule the time event to a bit before beacon 1,
+ * to make sure we're in the new channel when the
+ * GO/AP arrives.
+ */
+ apply_time = chsw->device_timestamp +
+ ((vif->bss_conf.beacon_int * (chsw->count - 1) -
+ IWL_MVM_CHANNEL_SWITCH_TIME_CLIENT) * 1024);
+
+ if (chsw->block_tx)
+ iwl_mvm_csa_client_absent(mvm, vif);
+
+ iwl_mvm_schedule_csa_period(mvm, vif, vif->bss_conf.beacon_int,
+ apply_time);
+ if (mvmvif->bf_data.bf_enabled) {
+ ret = iwl_mvm_disable_beacon_filter(mvm, vif, 0);
+ if (ret)
+ goto out_unlock;
+ }
+
+ break;
+ default:
+ break;
+ }
+
+ mvmvif->ps_disabled = true;
+
+ ret = iwl_mvm_power_update_ps(mvm);
+ if (ret)
goto out_unlock;
- IWL_DEBUG_MAC80211(mvm, "CSA started to freq %d\n",
- chandef->center_freq1);
- rcu_assign_pointer(mvm->csa_vif, vif);
+ /* we won't be on this channel any longer */
+ iwl_mvm_teardown_tdls_peers(mvm);
out_unlock:
mutex_unlock(&mvm->mutex);
+
+ return ret;
+}
+
+static int iwl_mvm_post_channel_switch(struct ieee80211_hw *hw,
+ struct ieee80211_vif *vif)
+{
+ struct iwl_mvm_vif *mvmvif = iwl_mvm_vif_from_mac80211(vif);
+ struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
+ int ret;
+
+ mutex_lock(&mvm->mutex);
+
+ if (vif->type == NL80211_IFTYPE_STATION) {
+ struct iwl_mvm_sta *mvmsta;
+
+ mvmsta = iwl_mvm_sta_from_staid_protected(mvm,
+ mvmvif->ap_sta_id);
+
+ if (WARN_ON(!mvmsta)) {
+ ret = -EIO;
+ goto out_unlock;
+ }
+
+ iwl_mvm_sta_modify_disable_tx(mvm, mvmsta, false);
+
+ iwl_mvm_mac_ctxt_changed(mvm, vif, false, NULL);
+
+ ret = iwl_mvm_enable_beacon_filter(mvm, vif, 0);
+ if (ret)
+ goto out_unlock;
+
+ iwl_mvm_stop_session_protection(mvm, vif);
+ }
+
+ mvmvif->ps_disabled = false;
+
+ ret = iwl_mvm_power_update_ps(mvm);
+
+out_unlock:
+ mutex_unlock(&mvm->mutex);
+
+ return ret;
}
static void iwl_mvm_mac_flush(struct ieee80211_hw *hw,
struct iwl_mvm *mvm = IWL_MAC80211_GET_MVM(hw);
struct iwl_mvm_vif *mvmvif;
struct iwl_mvm_sta *mvmsta;
+ struct ieee80211_sta *sta;
+ int i;
+ u32 msk = 0;
if (!vif || vif->type != NL80211_IFTYPE_STATION)
return;
mutex_lock(&mvm->mutex);
mvmvif = iwl_mvm_vif_from_mac80211(vif);
- mvmsta = iwl_mvm_sta_from_staid_protected(mvm, mvmvif->ap_sta_id);
- if (WARN_ON_ONCE(!mvmsta))
- goto done;
+ /* flush the AP-station and all TDLS peers */
+ for (i = 0; i < IWL_MVM_STATION_COUNT; i++) {
+ sta = rcu_dereference_protected(mvm->fw_id_to_mac_id[i],
+ lockdep_is_held(&mvm->mutex));
+ if (IS_ERR_OR_NULL(sta))
+ continue;
+
+ mvmsta = iwl_mvm_sta_from_mac80211(sta);
+ if (mvmsta->vif != vif)
+ continue;
+
+ /* make sure only TDLS peers or the AP are flushed */
+ WARN_ON(i != mvmvif->ap_sta_id && !sta->tdls);
+
+ msk |= mvmsta->tfd_queue_msk;
+ }
if (drop) {
- if (iwl_mvm_flush_tx_path(mvm, mvmsta->tfd_queue_msk, true))
+ if (iwl_mvm_flush_tx_path(mvm, msk, true))
IWL_ERR(mvm, "flush request fail\n");
+ mutex_unlock(&mvm->mutex);
} else {
- iwl_trans_wait_tx_queue_empty(mvm->trans,
- mvmsta->tfd_queue_msk);
+ mutex_unlock(&mvm->mutex);
+
+ /* this can take a while, and we may need/want other operations
+ * to succeed while doing this, so do it without the mutex held
+ */
+ iwl_trans_wait_tx_queue_empty(mvm->trans, msk);
}
-done:
- mutex_unlock(&mvm->mutex);
}
const struct ieee80211_ops iwl_mvm_hw_ops = {
.tx = iwl_mvm_mac_tx,
.ampdu_action = iwl_mvm_mac_ampdu_action,
.start = iwl_mvm_mac_start,
- .restart_complete = iwl_mvm_mac_restart_complete,
+ .reconfig_complete = iwl_mvm_mac_reconfig_complete,
.stop = iwl_mvm_mac_stop,
.add_interface = iwl_mvm_mac_add_interface,
.remove_interface = iwl_mvm_mac_remove_interface,
.set_tim = iwl_mvm_set_tim,
- .channel_switch_beacon = iwl_mvm_channel_switch_beacon,
+ .channel_switch = iwl_mvm_channel_switch,
+ .pre_channel_switch = iwl_mvm_pre_channel_switch,
+ .post_channel_switch = iwl_mvm_post_channel_switch,
+
+ .tdls_channel_switch = iwl_mvm_tdls_channel_switch,
+ .tdls_cancel_channel_switch = iwl_mvm_tdls_cancel_channel_switch,
+ .tdls_recv_channel_switch = iwl_mvm_tdls_recv_channel_switch,
CFG80211_TESTMODE_CMD(iwl_mvm_mac_testmode_cmd)
projects / cascardo / linux.git / blobdiff