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qcacld-3.0: Generate link specific Probe response

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Add support to generate link specific probe response
and add to the scan database.

Change-Id: I30a68df5496bf3e81b4fe71734253555512b82ea
CRs-Fixed: 3158761
This commit is contained in:
Amruta Kulkarni
2022-03-22 17:29:01 -07:00
committed by Madan Koyyalamudi
parent d88415f274
commit c4d1f8e948
4 changed files with 160 additions and 13 deletions
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19
core/mac/src/pe/include/lim_api.h
View File

@@ -566,6 +566,25 @@ lim_fill_pe_session(struct mac_context *mac_ctx,
struct pe_session *session,
struct bss_description *bss_desc);
#ifdef WLAN_FEATURE_11BE_MLO
QDF_STATUS
lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
struct pe_session *session_entry,
uint8_t *probe_rsp,
uint32_t probe_rsp_len,
int32_t rssi);
#else
static inline QDF_STATUS
lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
struct pe_session *session_entry,
uint8_t *probe_rsp,
uint32_t probe_rsp_len,
int32_t rssi)
{
return QDF_STATUS_E_NOSUPPORT;
}
#endif
#if defined(WLAN_FEATURE_ROAM_OFFLOAD) && defined(WLAN_FEATURE_11BE_MLO)
/**
* lim_cm_roam_create_session() - Create pe session for legacy to MLO roaming

129
core/mac/src/pe/lim/lim_api.c
View File

@@ -3461,3 +3461,132 @@ lim_mlo_roam_delete_link_peer(struct pe_session *pe_session,
wlan_objmgr_peer_release_ref(peer, WLAN_LEGACY_MAC_ID);
}
#endif
#ifdef WLAN_FEATURE_11BE_MLO
static void
lim_add_bcn_probe(struct wlan_objmgr_vdev *vdev, uint8_t *bcn_probe,
uint32_t len, qdf_freq_t freq, int32_t rssi)
{
qdf_nbuf_t buf;
struct wlan_objmgr_pdev *pdev;
uint8_t *data, i, vdev_id;
struct mgmt_rx_event_params rx_param = {0};
struct wlan_frame_hdr *hdr;
enum mgmt_frame_type frm_type = MGMT_BEACON;
vdev_id = wlan_vdev_get_id(vdev);
if (!bcn_probe || !len || (len < sizeof(*hdr))) {
pe_err("bcn_probe is null or invalid len %d",
len);
return;
}
pdev = wlan_vdev_get_pdev(vdev);
if (!pdev) {
pe_err("Failed to find pdev");
return;
}
hdr = (struct wlan_frame_hdr *)bcn_probe;
if ((hdr->i_fc[0] & QDF_IEEE80211_FC0_SUBTYPE_MASK) ==
MGMT_SUBTYPE_PROBE_RESP)
frm_type = MGMT_PROBE_RESP;
rx_param.pdev_id = wlan_objmgr_pdev_get_pdev_id(pdev);
rx_param.chan_freq = freq;
rx_param.rssi = rssi;
/* Set all per chain rssi as invalid */
for (i = 0; i < WLAN_MGMT_TXRX_HOST_MAX_ANTENNA; i++)
rx_param.rssi_ctl[i] = WLAN_INVALID_PER_CHAIN_RSSI;
buf = qdf_nbuf_alloc(NULL, qdf_roundup(len, 4), 0, 4, false);
if (!buf)
return;
qdf_nbuf_put_tail(buf, len);
qdf_nbuf_set_protocol(buf, ETH_P_CONTROL);
data = qdf_nbuf_data(buf);
qdf_mem_copy(data, bcn_probe, len);
pe_debug("MLO: add prb rsp to scan db");
/* buf will be freed by scan module in error or success case */
wlan_scan_process_bcn_probe_rx_sync(wlan_pdev_get_psoc(pdev), buf,
&rx_param, frm_type);
}
QDF_STATUS
lim_gen_link_specific_probe_rsp(struct mac_context *mac_ctx,
struct pe_session *session_entry,
uint8_t *probe_rsp,
uint32_t probe_rsp_len,
int32_t rssi)
{
struct element_info link_probe_rsp;
struct qdf_mac_addr sta_link_addr;
QDF_STATUS status = QDF_STATUS_SUCCESS;
struct mlo_link_info *link_info = NULL;
struct mlo_partner_info *partner_info;
uint8_t chan;
uint8_t op_class;
uint16_t chan_freq;
link_probe_rsp.ptr = qdf_mem_malloc(probe_rsp_len);
if (!link_probe_rsp.ptr)
return QDF_STATUS_E_NOMEM;
qdf_mem_copy(&sta_link_addr, session_entry->self_mac_addr,
QDF_MAC_ADDR_SIZE);
link_probe_rsp.len = probe_rsp_len;
status = util_gen_link_probe_rsp(probe_rsp,
probe_rsp_len,
sta_link_addr,
link_probe_rsp.ptr,
probe_rsp_len,
(qdf_size_t *)&link_probe_rsp.len);
if (QDF_IS_STATUS_ERROR(status)) {
pe_err("MLO: Link probe response generation failed %d", status);
status = QDF_STATUS_E_FAILURE;
goto end;
}
partner_info = &session_entry->lim_join_req->partner_info;
if (!partner_info->num_partner_links) {
pe_err("Partner link info not available");
status = QDF_STATUS_E_FAILURE;
goto end;
}
/* Currently only 2 link mlo is supported */
link_info = &partner_info->partner_link_info[0];
wlan_get_chan_by_bssid_from_rnr(session_entry->vdev,
session_entry->cm_id,
&link_info->link_addr,
&chan, &op_class);
if (!chan)
wlan_get_chan_by_link_id_from_rnr(session_entry->vdev,
session_entry->cm_id,
link_info->link_id,
&chan, &op_class);
if (!chan) {
pe_err("Invalid link id %d link mac: " QDF_MAC_ADDR_FMT,
link_info->link_id,
QDF_MAC_ADDR_REF(link_info->link_addr.bytes));
status = QDF_STATUS_E_FAILURE;
goto end;
}
chan_freq = wlan_reg_chan_opclass_to_freq(chan, op_class,
true);
lim_add_bcn_probe(session_entry->vdev, probe_rsp, probe_rsp_len,
chan_freq, rssi);
end:
qdf_mem_free(link_probe_rsp.ptr);
link_probe_rsp.len = 0;
return status;
}
#endif

5
core/mac/src/pe/lim/lim_process_probe_rsp_frame.c
View File

@@ -1,5 +1,6 @@
/*
* Copyright (c) 2011-2021 The Linux Foundation. All rights reserved.
* Copyright (c) 2021-2022 Qualcomm Innovation Center, Inc. All rights reserved.
*
* Permission to use, copy, modify, and/or distribute this software for
* any purpose with or without fee is hereby granted, provided that the
@@ -154,6 +155,10 @@ lim_process_probe_rsp_frame(struct mac_context *mac_ctx, uint8_t *rx_Packet_info
return;
}
lim_gen_link_specific_probe_rsp(mac_ctx, session_entry, body,
frame_len,
mac_ctx->lim.bss_rssi);
if (session_entry->limMlmState ==
eLIM_MLM_WT_JOIN_BEACON_STATE) {
/*

20
core/mac/src/pe/lim/lim_send_management_frames.c
View File

@@ -163,12 +163,6 @@ lim_populate_ml_probe_req(struct mac_context *mac,
return QDF_STATUS_E_NULL_VALUE;
}
/* if num partner links is > 0
* means complete profiles were sent by AP
*/
if (session->lim_join_req->partner_info.num_partner_links)
return QDF_STATUS_SUCCESS;
ml_prb_req = qdf_mem_malloc(sizeof(struct wlan_ml_probe_req));
if (!ml_prb_req)
return QDF_STATUS_E_NULL_VALUE;
@@ -181,6 +175,7 @@ lim_populate_ml_probe_req(struct mac_context *mac,
ml_prb_req->ml_ie_ff.elem_id = WLAN_ELEMID_EXTN_ELEM;
/* Fill the Multi link extn Element ID IE Type (0x6B) */
ml_prb_req->ml_ie_ff.elem_id_ext = WLAN_EXTN_ELEMID_MULTI_LINK;
ml_probe_len++;
/* Set ML IE multi link control bitmap:
* ML probe variant type = 1
@@ -195,12 +190,11 @@ lim_populate_ml_probe_req(struct mac_context *mac,
WLAN_ML_CTRL_PBM_IDX,
WLAN_ML_CTRL_PBM_BITS,
1);
ml_probe_len += sizeof(struct wlan_ie_multilink);
ml_prb_req->common_info_len = 1;
ml_probe_len++;
ml_probe_len += WLAN_ML_CTRL_SIZE;
ml_prb_req->common_info_len = 2;
ml_probe_len += ml_prb_req->common_info_len;
/* mld id is always 0 for tx link for SAP or AP */
ml_prb_req->mld_id = 0;
ml_probe_len++;
stacontrol = htole16(stacontrol);
partner_info = session->lim_join_req->partner_info;
@@ -210,7 +204,7 @@ lim_populate_ml_probe_req(struct mac_context *mac,
link++) {
ml_prb_req->sta_profile[link].sub_elem_id = 0;
ml_prb_req->sta_profile[link].per_sta_len =
WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_SIZE + 2;
WLAN_ML_BV_LINFO_PERSTAPROF_STACTRL_SIZE;
ml_probe_len += 2;
QDF_SET_BITS(stacontrol,
@@ -228,9 +222,9 @@ lim_populate_ml_probe_req(struct mac_context *mac,
ml_prb_req->ml_ie_ff.elem_len = ml_probe_len;
*ml_probe_req_len = ml_probe_len;
pe_nofl_debug("Send ML probe req");
pe_nofl_debug("Send ML probe req %d", ml_probe_len);
QDF_TRACE_HEX_DUMP(QDF_MODULE_ID_PE, QDF_TRACE_LEVEL_DEBUG,
ml_probe, ml_probe_len);
ml_probe, ml_probe_len + 2);
return QDF_STATUS_SUCCESS;
}