package/kernel/mac80211/patches/brcm/306-v4.20-0002-brcmfmac-fix-full-timeout-waiting-for-action-frame-o.patch

   1 From fbf07000960d9c8a13fdc17c6de0230d681c7543 Mon Sep 17 00:00:00 2001
   2 From: Chung-Hsien Hsu <stanley.hsu@cypress.com>
   3 Date: Thu, 27 Sep 2018 14:59:49 +0000
   4 Subject: [PATCH] brcmfmac: fix full timeout waiting for action frame
   5  on-channel tx
   6
   7 The driver sends an action frame down and waits for a completion signal
   8 triggered by the received BRCMF_E_ACTION_FRAME_OFF_CHAN_COMPLETE event
   9 to continue the process. However, the action frame could be transmitted
  10 either on the current channel or on an off channel. For the on-channel
  11 case, only BRCMF_E_ACTION_FRAME_COMPLETE event will be received when
  12 the frame is transmitted, which make the driver always wait a full
  13 timeout duration. This patch has the completion signal be triggered by
  14 receiving the BRCMF_E_ACTION_FRAME_COMPLETE event for the on-channel
  15 case.
  16
  17 This change fixes WFA p2p certification 5.1.19 failure.
  18
  19 Signed-off-by: Chung-Hsien Hsu <stanley.hsu@cypress.com>
  20 Signed-off-by: Chi-Hsien Lin <chi-hsien.lin@cypress.com>
  21 Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
  22 ---
  23  drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c | 17 +++++++++++++++--
  24  drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h |  2 ++
  25  2 files changed, 17 insertions(+), 2 deletions(-)
  26
  27 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  28 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.c
  29 @@ -1457,10 +1457,12 @@ int brcmf_p2p_notify_action_tx_complete(
  30                 return 0;
  31
  32         if (e->event_code == BRCMF_E_ACTION_FRAME_COMPLETE) {
  33 -               if (e->status == BRCMF_E_STATUS_SUCCESS)
  34 +               if (e->status == BRCMF_E_STATUS_SUCCESS) {
  35                         set_bit(BRCMF_P2P_STATUS_ACTION_TX_COMPLETED,
  36                                 &p2p->status);
  37 -               else {
  38 +                       if (!p2p->wait_for_offchan_complete)
  39 +                               complete(&p2p->send_af_done);
  40 +               } else {
  41                         set_bit(BRCMF_P2P_STATUS_ACTION_TX_NOACK, &p2p->status);
  42                         /* If there is no ack, we don't need to wait for
  43                          * WLC_E_ACTION_FRAME_OFFCHAN_COMPLETE event
  44 @@ -1511,6 +1513,17 @@ static s32 brcmf_p2p_tx_action_frame(str
  45         p2p->af_sent_channel = le32_to_cpu(af_params->channel);
  46         p2p->af_tx_sent_jiffies = jiffies;
  47
  48 +       if (test_bit(BRCMF_P2P_STATUS_DISCOVER_LISTEN, &p2p->status) &&
  49 +           p2p->af_sent_channel ==
  50 +           ieee80211_frequency_to_channel(p2p->remain_on_channel.center_freq))
  51 +               p2p->wait_for_offchan_complete = false;
  52 +       else
  53 +               p2p->wait_for_offchan_complete = true;
  54 +
  55 +       brcmf_dbg(TRACE, "Waiting for %s tx completion event\n",
  56 +                 (p2p->wait_for_offchan_complete) ?
  57 +                  "off-channel" : "on-channel");
  58 +
  59         timeout = wait_for_completion_timeout(&p2p->send_af_done,
  60                                               P2P_AF_MAX_WAIT_TIME);
  61
  62 --- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
  63 +++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/p2p.h
  64 @@ -124,6 +124,7 @@ struct afx_hdl {
  65   * @gon_req_action: about to send go negotiation requets frame.
  66   * @block_gon_req_tx: drop tx go negotiation requets frame.
  67   * @p2pdev_dynamically: is p2p device if created by module param or supplicant.
  68 + * @wait_for_offchan_complete: wait for off-channel tx completion event.
  69   */
  70  struct brcmf_p2p_info {
  71         struct brcmf_cfg80211_info *cfg;
  72 @@ -144,6 +145,7 @@ struct brcmf_p2p_info {
  73         bool gon_req_action;
  74         bool block_gon_req_tx;
  75         bool p2pdev_dynamically;
  76 +       bool wait_for_offchan_complete;
  77  };
  78
  79  s32 brcmf_p2p_attach(struct brcmf_cfg80211_info *cfg, bool p2pdev_forced);