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qcacmn: Allow FW to pno scan 6G chan based on RNR flag only

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First host checks below two things in PNO scan request:
1. Userspace sets NL80211_SCAN_FLAG_COLOCATED_6GHZ flag
in pno scan request.
2. At least one 6G channel is present in the pno scan req.

If any of above conditions satisfy, Host fills all remaining
(other than channel(s) present in pno scan req) valid 6 GHz
channel(s) to pno scan requests and set the flag
FLAG_SCAN_ONLY_IF_RNR_FOUND for each remaining channel(s).
Host sends this updated channel list via WMI command
WMI_START_SCAN_CMDID_param_tlvs->channel_list for pno scan
to firmware.

By this driver allows Firmware to scan 6G channels based on
RNR IEs only (for colocated APs reported by 2.4/5 GHz APs).

Change-Id: Ib6118c4525e9fbe233eb6a7e07a4a3345d486e8a
CRs-Fixed: 3103923
This commit is contained in:
abhinav kumar
2021-12-31 00:42:44 +05:30
committed by Madan Koyyalamudi
parent 77530eea0b
commit 3b1731aa70
7 changed files with 187 additions and 46 deletions
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57
os_if/linux/scan/src/wlan_cfg80211_scan.c
View File

@@ -52,6 +52,27 @@ const struct nla_policy cfg80211_scan_policy[
[QCA_WLAN_VENDOR_ATTR_SCAN_COOKIE] = {.type = NLA_U64},
};
/**
* wlan_cfg80211_is_colocated_6ghz_scan_supported() - Check whether colocated
* 6ghz scan flag present in scan request or not
* @scan_flag: Flags bitmap comming from kernel
*
* Return: True if colocated 6ghz scan flag present in scan req
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0))
static bool
wlan_cfg80211_is_colocated_6ghz_scan_supported(uint32_t scan_flag)
{
return !!(scan_flag & NL80211_SCAN_FLAG_COLOCATED_6GHZ);
}
#else
static inline bool
wlan_cfg80211_is_colocated_6ghz_scan_supported(uint32_t scan_flag)
{
return false;
}
#endif
#if defined(CFG80211_SCAN_RANDOM_MAC_ADDR) || \
(LINUX_VERSION_CODE >= KERNEL_VERSION(4, 4, 0))
/**
@@ -430,6 +451,9 @@ int wlan_cfg80211_sched_scan_start(struct wlan_objmgr_vdev *vdev,
req->networks_cnt = request->n_match_sets;
req->vdev_id = wlan_vdev_get_id(vdev);
req->vdev = vdev;
req->scan_policy_colocated_6ghz =
wlan_cfg80211_is_colocated_6ghz_scan_supported(request->flags);
if ((!req->networks_cnt) ||
(req->networks_cnt > SCAN_PNO_MAX_SUPP_NETWORKS)) {
@@ -524,9 +548,15 @@ int wlan_cfg80211_sched_scan_start(struct wlan_objmgr_vdev *vdev,
req->networks_list[i].bc_new_type = 0; /*eBCAST_UNKNOWN */
/*Copying list of valid channel into request */
qdf_mem_copy(req->networks_list[i].channels, valid_ch,
num_chan * sizeof(uint32_t));
req->networks_list[i].channel_cnt = num_chan;
for (j = 0; j < num_chan; j++)
req->networks_list[i].pno_chan_list.chan[j].freq =
valid_ch[j];
req->networks_list[i].pno_chan_list.num_chan = num_chan;
if (ucfg_is_6ghz_pno_scan_optimization_supported(psoc))
ucfg_scan_pno_add_all_valid_6g_channels(vdev, req,
&num_chan);
req->networks_list[i].rssi_thresh =
request->match_sets[i].rssi_thold;
}
@@ -1316,27 +1346,6 @@ void wlan_cfg80211_cleanup_scan_queue(struct wlan_objmgr_pdev *pdev,
return;
}
/**
* wlan_cfg80211_is_colocated_6ghz_scan_supported() - Check whether colocated
* 6ghz scan flag present in scan request or not
* @scan_flag: Flags bitmap coming from kernel
*
* Return: True if colocated 6ghz scan flag present in scan req
*/
#if (LINUX_VERSION_CODE >= KERNEL_VERSION(5, 10, 0))
static bool
wlan_cfg80211_is_colocated_6ghz_scan_supported(uint32_t scan_flag)
{
return !!(scan_flag & NL80211_SCAN_FLAG_COLOCATED_6GHZ);
}
#else
static inline bool
wlan_cfg80211_is_colocated_6ghz_scan_supported(uint32_t scan_flag)
{
return false;
}
#endif
/**
* wlan_cfg80211_update_scan_policy_type_flags() - Set scan flags according to
* scan request