diff options
author | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 09:38:14 -0700 |
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committer | Linus Torvalds <torvalds@linux-foundation.org> | 2014-08-06 09:38:14 -0700 |
commit | ae045e2455429c418a418a3376301a9e5753a0a8 (patch) | |
tree | b445bdeecd3f38aa0d0a29c9585cee49e4ccb0f1 /drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | |
parent | f4f142ed4ef835709c7e6d12eaca10d190bcebed (diff) | |
parent | d247b6ab3ce6dd43665780865ec5fa145d9ab6bd (diff) |
Merge git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next
Pull networking updates from David Miller:
"Highlights:
1) Steady transitioning of the BPF instructure to a generic spot so
all kernel subsystems can make use of it, from Alexei Starovoitov.
2) SFC driver supports busy polling, from Alexandre Rames.
3) Take advantage of hash table in UDP multicast delivery, from David
Held.
4) Lighten locking, in particular by getting rid of the LRU lists, in
inet frag handling. From Florian Westphal.
5) Add support for various RFC6458 control messages in SCTP, from
Geir Ola Vaagland.
6) Allow to filter bridge forwarding database dumps by device, from
Jamal Hadi Salim.
7) virtio-net also now supports busy polling, from Jason Wang.
8) Some low level optimization tweaks in pktgen from Jesper Dangaard
Brouer.
9) Add support for ipv6 address generation modes, so that userland
can have some input into the process. From Jiri Pirko.
10) Consolidate common TCP connection request code in ipv4 and ipv6,
from Octavian Purdila.
11) New ARP packet logger in netfilter, from Pablo Neira Ayuso.
12) Generic resizable RCU hash table, with intial users in netlink and
nftables. From Thomas Graf.
13) Maintain a name assignment type so that userspace can see where a
network device name came from (enumerated by kernel, assigned
explicitly by userspace, etc.) From Tom Gundersen.
14) Automatic flow label generation on transmit in ipv6, from Tom
Herbert.
15) New packet timestamping facilities from Willem de Bruijn, meant to
assist in measuring latencies going into/out-of the packet
scheduler, latency from TCP data transmission to ACK, etc"
* git://git.kernel.org/pub/scm/linux/kernel/git/davem/net-next: (1536 commits)
cxgb4 : Disable recursive mailbox commands when enabling vi
net: reduce USB network driver config options.
tg3: Modify tg3_tso_bug() to handle multiple TX rings
amd-xgbe: Perform phy connect/disconnect at dev open/stop
amd-xgbe: Use dma_set_mask_and_coherent to set DMA mask
net: sun4i-emac: fix memory leak on bad packet
sctp: fix possible seqlock seadlock in sctp_packet_transmit()
Revert "net: phy: Set the driver when registering an MDIO bus device"
cxgb4vf: Turn off SGE RX/TX Callback Timers and interrupts in PCI shutdown routine
team: Simplify return path of team_newlink
bridge: Update outdated comment on promiscuous mode
net-timestamp: ACK timestamp for bytestreams
net-timestamp: TCP timestamping
net-timestamp: SCHED timestamp on entering packet scheduler
net-timestamp: add key to disambiguate concurrent datagrams
net-timestamp: move timestamp flags out of sk_flags
net-timestamp: extend SCM_TIMESTAMPING ancillary data struct
cxgb4i : Move stray CPL definitions to cxgb4 driver
tcp: reduce spurious retransmits due to transient SACK reneging
qlcnic: Initialize dcbnl_ops before register_netdev
...
Diffstat (limited to 'drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c')
-rw-r--r-- | drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c | 111 |
1 files changed, 88 insertions, 23 deletions
diff --git a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c index 8b79081d488..0e523e28cab 100644 --- a/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c +++ b/drivers/net/wireless/iwlwifi/mvm/mac-ctxt.c @@ -67,6 +67,7 @@ #include "iwl-prph.h" #include "fw-api.h" #include "mvm.h" +#include "time-event.h" const u8 iwl_mvm_ac_to_tx_fifo[] = { IWL_MVM_TX_FIFO_VO, @@ -903,7 +904,7 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, struct iwl_mac_beacon_cmd beacon_cmd = {}; struct ieee80211_tx_info *info; u32 beacon_skb_len; - u32 rate; + u32 rate, tx_flags; if (WARN_ON(!beacon)) return -EINVAL; @@ -913,14 +914,17 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, /* TODO: for now the beacon template id is set to be the mac context id. * Might be better to handle it as another resource ... */ beacon_cmd.template_id = cpu_to_le32((u32)mvmvif->id); + info = IEEE80211_SKB_CB(beacon); /* Set up TX command fields */ beacon_cmd.tx.len = cpu_to_le16((u16)beacon_skb_len); beacon_cmd.tx.sta_id = mvmvif->bcast_sta.sta_id; beacon_cmd.tx.life_time = cpu_to_le32(TX_CMD_LIFE_TIME_INFINITE); - beacon_cmd.tx.tx_flags = cpu_to_le32(TX_CMD_FLG_SEQ_CTL | - TX_CMD_FLG_BT_DIS | - TX_CMD_FLG_TSF); + tx_flags = TX_CMD_FLG_SEQ_CTL | TX_CMD_FLG_TSF; + tx_flags |= + iwl_mvm_bt_coex_tx_prio(mvm, (void *)beacon->data, info, 0) << + TX_CMD_FLG_BT_PRIO_POS; + beacon_cmd.tx.tx_flags = cpu_to_le32(tx_flags); mvm->mgmt_last_antenna_idx = iwl_mvm_next_antenna(mvm, mvm->fw->valid_tx_ant, @@ -930,8 +934,6 @@ static int iwl_mvm_mac_ctxt_send_beacon(struct iwl_mvm *mvm, cpu_to_le32(BIT(mvm->mgmt_last_antenna_idx) << RATE_MCS_ANT_POS); - info = IEEE80211_SKB_CB(beacon); - if (info->band == IEEE80211_BAND_5GHZ || vif->p2p) { rate = IWL_FIRST_OFDM_RATE; } else { @@ -968,7 +970,7 @@ int iwl_mvm_mac_ctxt_beacon_changed(struct iwl_mvm *mvm, WARN_ON(vif->type != NL80211_IFTYPE_AP && vif->type != NL80211_IFTYPE_ADHOC); - beacon = ieee80211_beacon_get(mvm->hw, vif); + beacon = ieee80211_beacon_get_template(mvm->hw, vif, NULL); if (!beacon) return -ENOMEM; @@ -1210,31 +1212,94 @@ int iwl_mvm_mac_ctxt_remove(struct iwl_mvm *mvm, struct ieee80211_vif *vif) return 0; } +static void iwl_mvm_csa_count_down(struct iwl_mvm *mvm, + struct ieee80211_vif *csa_vif, u32 gp2) +{ + struct iwl_mvm_vif *mvmvif = + iwl_mvm_vif_from_mac80211(csa_vif); + + if (!ieee80211_csa_is_complete(csa_vif)) { + int c = ieee80211_csa_update_counter(csa_vif); + + iwl_mvm_mac_ctxt_beacon_changed(mvm, csa_vif); + if (csa_vif->p2p && + !iwl_mvm_te_scheduled(&mvmvif->time_event_data) && gp2) { + u32 rel_time = (c + 1) * + csa_vif->bss_conf.beacon_int - + IWL_MVM_CHANNEL_SWITCH_TIME; + u32 apply_time = gp2 + rel_time * 1024; + + iwl_mvm_schedule_csa_noa(mvm, csa_vif, + IWL_MVM_CHANNEL_SWITCH_TIME - + IWL_MVM_CHANNEL_SWITCH_MARGIN, + apply_time); + } + } else if (!iwl_mvm_te_scheduled(&mvmvif->time_event_data)) { + /* we don't have CSA NoA scheduled yet, switch now */ + ieee80211_csa_finish(csa_vif); + RCU_INIT_POINTER(mvm->csa_vif, NULL); + } +} + int iwl_mvm_rx_beacon_notif(struct iwl_mvm *mvm, struct iwl_rx_cmd_buffer *rxb, struct iwl_device_cmd *cmd) { struct iwl_rx_packet *pkt = rxb_addr(rxb); - struct iwl_beacon_notif *beacon = (void *)pkt->data; - u16 status __maybe_unused = - le16_to_cpu(beacon->beacon_notify_hdr.status.status); - u32 rate __maybe_unused = - le32_to_cpu(beacon->beacon_notify_hdr.initial_rate); + struct iwl_mvm_tx_resp *beacon_notify_hdr; + struct ieee80211_vif *csa_vif; + struct ieee80211_vif *tx_blocked_vif; + u64 tsf; lockdep_assert_held(&mvm->mutex); - IWL_DEBUG_RX(mvm, "beacon status %#x retries:%d tsf:0x%16llX rate:%d\n", - status & TX_STATUS_MSK, - beacon->beacon_notify_hdr.failure_frame, - le64_to_cpu(beacon->tsf), - rate); + if (mvm->fw->ucode_capa.api[0] & IWL_UCODE_TLV_CAPA_EXTENDED_BEACON) { + struct iwl_extended_beacon_notif *beacon = (void *)pkt->data; - if (unlikely(mvm->csa_vif && mvm->csa_vif->csa_active)) { - if (!ieee80211_csa_is_complete(mvm->csa_vif)) { - iwl_mvm_mac_ctxt_beacon_changed(mvm, mvm->csa_vif); - } else { - ieee80211_csa_finish(mvm->csa_vif); - mvm->csa_vif = NULL; + beacon_notify_hdr = &beacon->beacon_notify_hdr; + tsf = le64_to_cpu(beacon->tsf); + mvm->ap_last_beacon_gp2 = le32_to_cpu(beacon->gp2); + } else { + struct iwl_beacon_notif *beacon = (void *)pkt->data; + + beacon_notify_hdr = &beacon->beacon_notify_hdr; + tsf = le64_to_cpu(beacon->tsf); + } + + IWL_DEBUG_RX(mvm, + "beacon status %#x retries:%d tsf:0x%16llX gp2:0x%X rate:%d\n", + le16_to_cpu(beacon_notify_hdr->status.status) & + TX_STATUS_MSK, + beacon_notify_hdr->failure_frame, tsf, + mvm->ap_last_beacon_gp2, + le32_to_cpu(beacon_notify_hdr->initial_rate)); + + csa_vif = rcu_dereference_protected(mvm->csa_vif, + lockdep_is_held(&mvm->mutex)); + if (unlikely(csa_vif && csa_vif->csa_active)) + iwl_mvm_csa_count_down(mvm, csa_vif, mvm->ap_last_beacon_gp2); + + tx_blocked_vif = rcu_dereference_protected(mvm->csa_tx_blocked_vif, + lockdep_is_held(&mvm->mutex)); + if (unlikely(tx_blocked_vif)) { + struct iwl_mvm_vif *mvmvif = + iwl_mvm_vif_from_mac80211(tx_blocked_vif); + + /* + * The channel switch is started and we have blocked the + * stations. If this is the first beacon (the timeout wasn't + * set), set the unblock timeout, otherwise countdown + */ + if (!mvm->csa_tx_block_bcn_timeout) + mvm->csa_tx_block_bcn_timeout = + IWL_MVM_CS_UNBLOCK_TX_TIMEOUT; + else + mvm->csa_tx_block_bcn_timeout--; + + /* Check if the timeout is expired, and unblock tx */ + if (mvm->csa_tx_block_bcn_timeout == 0) { + iwl_mvm_modify_all_sta_disable_tx(mvm, mvmvif, false); + RCU_INIT_POINTER(mvm->csa_tx_blocked_vif, NULL); } } |