diff options
| author | Baochen Qiang <quic_bqiang@quicinc.com> | 2022-05-09 14:57:31 +0300 |
|---|---|---|
| committer | Kalle Valo <quic_kvalo@quicinc.com> | 2022-05-10 19:30:37 +0300 |
| commit | 0f84a156aa3b9c9889c64a31d36b533508fabcb7 (patch) | |
| tree | 78bb0f4bdc1a4f81e0b5f02b2c0ef49c84a16736 /drivers/net/wireless/ath/ath11k/wmi.c | |
| parent | 9497b7880ffd71fcbd469970f6ef45bb55877bfd (diff) | |
| download | linux-0f84a156aa3b9c9889c64a31d36b533508fabcb7.tar.xz | |
ath11k: Handle keepalive during WoWLAN suspend and resume
With WoWLAN enabled and after sleeping for a rather long time,
we are seeing that with some APs, it is not able to wake up
the STA though the correct wake up pattern has been configured.
This is because the host doesn't send keepalive command to
firmware, thus firmware will not send any packet to the AP and
after a specific time the AP kicks out the STA.
Fix this issue by enabling keepalive before going to suspend
and disabling it after resume back.
Tested-on: WCN6855 hw2.0 PCI WLAN.HSP.1.1-01720.1-QCAHSPSWPL_V1_V2_SILICONZ_LITE-1
Signed-off-by: Baochen Qiang <quic_bqiang@quicinc.com>
Signed-off-by: Kalle Valo <quic_kvalo@quicinc.com>
Link: https://lore.kernel.org/r/20220506012540.1579604-1-quic_bqiang@quicinc.com
Diffstat (limited to 'drivers/net/wireless/ath/ath11k/wmi.c')
| -rw-r--r-- | drivers/net/wireless/ath/ath11k/wmi.c | 41 |
1 files changed, 41 insertions, 0 deletions
diff --git a/drivers/net/wireless/ath/ath11k/wmi.c b/drivers/net/wireless/ath/ath11k/wmi.c index 1410114d1d5c..63463b6c63be 100644 --- a/drivers/net/wireless/ath/ath11k/wmi.c +++ b/drivers/net/wireless/ath/ath11k/wmi.c @@ -8959,3 +8959,44 @@ int ath11k_wmi_pdev_set_bios_geo_table_param(struct ath11k *ar) return ath11k_wmi_cmd_send(wmi, skb, WMI_PDEV_SET_BIOS_GEO_TABLE_CMDID); } + +int ath11k_wmi_sta_keepalive(struct ath11k *ar, + const struct wmi_sta_keepalive_arg *arg) +{ + struct ath11k_pdev_wmi *wmi = ar->wmi; + struct wmi_sta_keepalive_cmd *cmd; + struct wmi_sta_keepalive_arp_resp *arp; + struct sk_buff *skb; + size_t len; + + len = sizeof(*cmd) + sizeof(*arp); + skb = ath11k_wmi_alloc_skb(wmi->wmi_ab, len); + if (!skb) + return -ENOMEM; + + cmd = (struct wmi_sta_keepalive_cmd *)skb->data; + cmd->tlv_header = FIELD_PREP(WMI_TLV_TAG, + WMI_TAG_STA_KEEPALIVE_CMD) | + FIELD_PREP(WMI_TLV_LEN, sizeof(*cmd) - TLV_HDR_SIZE); + cmd->vdev_id = arg->vdev_id; + cmd->enabled = arg->enabled; + cmd->interval = arg->interval; + cmd->method = arg->method; + + if (arg->method == WMI_STA_KEEPALIVE_METHOD_UNSOLICITED_ARP_RESPONSE || + arg->method == WMI_STA_KEEPALIVE_METHOD_GRATUITOUS_ARP_REQUEST) { + arp = (struct wmi_sta_keepalive_arp_resp *)(cmd + 1); + arp->tlv_header = FIELD_PREP(WMI_TLV_TAG, + WMI_TAG_STA_KEEPALVE_ARP_RESPONSE) | + FIELD_PREP(WMI_TLV_LEN, sizeof(*arp) - TLV_HDR_SIZE); + arp->src_ip4_addr = arg->src_ip4_addr; + arp->dest_ip4_addr = arg->dest_ip4_addr; + ether_addr_copy(arp->dest_mac_addr.addr, arg->dest_mac_addr); + } + + ath11k_dbg(ar->ab, ATH11K_DBG_WMI, + "wmi sta keepalive vdev %d enabled %d method %d interval %d\n", + arg->vdev_id, arg->enabled, arg->method, arg->interval); + + return ath11k_wmi_cmd_send(wmi, skb, WMI_STA_KEEPALIVE_CMDID); +} |