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iwlwifi: mvm: Support new format of SCAN_OFFLOAD_PROFILES_QUERY_RSP

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Newer FWs use a new format of the SCAN_OFFLOAD_PROFILES_QUERY_RSP,
which now supports indicating match on an higher number of channels.

Modify the code to support both the old format and the newer one,
based on a FW TLV.

Signed-off-by: Ilan Peer <ilan.peer@intel.com>
Signed-off-by: Luca Coelho <luciano.coelho@intel.com>
This commit is contained in:
Ilan Peer
2019-02-05 10:59:40 +02:00
committed by Luca Coelho
parent 2785ce008e
commit e4fe5d4b10
3 changed files with 128 additions and 19 deletions
Download Patch File Download Diff File Expand all files Collapse all files

54
drivers/net/wireless/intel/iwlwifi/fw/api/scan.h
View File

@@ -788,7 +788,53 @@ struct iwl_umac_scan_complete {
__le32 reserved;
} __packed; /* SCAN_COMPLETE_NTF_UMAC_API_S_VER_1 */
#define SCAN_OFFLOAD_MATCHING_CHANNELS_LEN 5
#define SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 5
#define SCAN_OFFLOAD_MATCHING_CHANNELS_LEN 7
/**
* struct iwl_scan_offload_profile_match_v1 - match information
* @bssid: matched bssid
* @reserved: reserved
* @channel: channel where the match occurred
* @energy: energy
* @matching_feature: feature matches
* @matching_channels: bitmap of channels that matched, referencing
* the channels passed in the scan offload request.
*/
struct iwl_scan_offload_profile_match_v1 {
u8 bssid[ETH_ALEN];
__le16 reserved;
u8 channel;
u8 energy;
u8 matching_feature;
u8 matching_channels[SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1];
} __packed; /* SCAN_OFFLOAD_PROFILE_MATCH_RESULTS_S_VER_1 */
/**
* struct iwl_scan_offload_profiles_query_v1 - match results query response
* @matched_profiles: bitmap of matched profiles, referencing the
* matches passed in the scan offload request
* @last_scan_age: age of the last offloaded scan
* @n_scans_done: number of offloaded scans done
* @gp2_d0u: GP2 when D0U occurred
* @gp2_invoked: GP2 when scan offload was invoked
* @resume_while_scanning: not used
* @self_recovery: obsolete
* @reserved: reserved
* @matches: array of match information, one for each match
*/
struct iwl_scan_offload_profiles_query_v1 {
__le32 matched_profiles;
__le32 last_scan_age;
__le32 n_scans_done;
__le32 gp2_d0u;
__le32 gp2_invoked;
u8 resume_while_scanning;
u8 self_recovery;
__le16 reserved;
struct iwl_scan_offload_profile_match_v1 matches[IWL_SCAN_MAX_PROFILES];
} __packed; /* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S_VER_2 */
/**
* struct iwl_scan_offload_profile_match - match information
* @bssid: matched bssid
@@ -797,7 +843,7 @@ struct iwl_umac_scan_complete {
* @energy: energy
* @matching_feature: feature matches
* @matching_channels: bitmap of channels that matched, referencing
* the channels passed in tue scan offload request
* the channels passed in the scan offload request.
*/
struct iwl_scan_offload_profile_match {
u8 bssid[ETH_ALEN];
@@ -806,7 +852,7 @@ struct iwl_scan_offload_profile_match {
u8 energy;
u8 matching_feature;
u8 matching_channels[SCAN_OFFLOAD_MATCHING_CHANNELS_LEN];
} __packed; /* SCAN_OFFLOAD_PROFILE_MATCH_RESULTS_S_VER_1 */
} __packed; /* SCAN_OFFLOAD_PROFILE_MATCH_RESULTS_S_VER_2 */
/**
* struct iwl_scan_offload_profiles_query - match results query response
@@ -831,7 +877,7 @@ struct iwl_scan_offload_profiles_query {
u8 self_recovery;
__le16 reserved;
struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
} __packed; /* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S_VER_2 */
} __packed; /* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S_VER_3 */
/**
* struct iwl_umac_scan_iter_complete_notif - notifies end of scanning iteration

4
drivers/net/wireless/intel/iwlwifi/fw/file.h
View File

@@ -276,6 +276,9 @@ typedef unsigned int __bitwise iwl_ucode_tlv_api_t;
* REGULATORY_NVM_GET_INFO_RSP_API_S.
* @IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ: This ucode supports v7 of
* LOCATION_RANGE_REQ_CMD_API_S and v6 of LOCATION_RANGE_RESP_NTFY_API_S.
* @IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS: This ucode supports v2 of
* SCAN_OFFLOAD_PROFILE_MATCH_RESULTS_S and v3 of
* SCAN_OFFLOAD_PROFILES_QUERY_RSP_S.
*
* @NUM_IWL_UCODE_TLV_API: number of bits used
*/
@@ -304,6 +307,7 @@ enum iwl_ucode_tlv_api {
IWL_UCODE_TLV_API_BEACON_FILTER_V4 = (__force iwl_ucode_tlv_api_t)47,
IWL_UCODE_TLV_API_REGULATORY_NVM_INFO = (__force iwl_ucode_tlv_api_t)48,
IWL_UCODE_TLV_API_FTM_NEW_RANGE_REQ = (__force iwl_ucode_tlv_api_t)49,
IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS = (__force iwl_ucode_tlv_api_t)50,
NUM_IWL_UCODE_TLV_API
#ifdef __CHECKER__

89
drivers/net/wireless/intel/iwlwifi/mvm/d3.c
View File

@@ -8,7 +8,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
*
* This program is free software; you can redistribute it and/or modify
* it under the terms of version 2 of the GNU General Public License as
@@ -31,7 +31,7 @@
* Copyright(c) 2012 - 2014 Intel Corporation. All rights reserved.
* Copyright(c) 2013 - 2015 Intel Mobile Communications GmbH
* Copyright(c) 2016 - 2017 Intel Deutschland GmbH
* Copyright(c) 2018 Intel Corporation
* Copyright(c) 2018 - 2019 Intel Corporation
* All rights reserved.
*
* Redistribution and use in source and binary forms, with or without
@@ -1728,9 +1728,12 @@ void iwl_mvm_d0i3_update_keys(struct iwl_mvm *mvm,
iwl_mvm_iter_d0i3_ap_keys(mvm, vif, iwl_mvm_d3_update_keys, &gtkdata);
}
#define ND_QUERY_BUF_LEN (sizeof(struct iwl_scan_offload_profile_match) * \
IWL_SCAN_MAX_PROFILES)
struct iwl_mvm_nd_query_results {
u32 matched_profiles;
struct iwl_scan_offload_profile_match matches[IWL_SCAN_MAX_PROFILES];
u8 matches[ND_QUERY_BUF_LEN];
};
static int
@@ -1743,6 +1746,7 @@ iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
.flags = CMD_WANT_SKB,
};
int ret, len;
size_t query_len, matches_len;
ret = iwl_mvm_send_cmd(mvm, &cmd);
if (ret) {
@@ -1750,8 +1754,19 @@ iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
return ret;
}
if (fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
query_len = sizeof(struct iwl_scan_offload_profiles_query);
matches_len = sizeof(struct iwl_scan_offload_profile_match) *
IWL_SCAN_MAX_PROFILES;
} else {
query_len = sizeof(struct iwl_scan_offload_profiles_query_v1);
matches_len = sizeof(struct iwl_scan_offload_profile_match_v1) *
IWL_SCAN_MAX_PROFILES;
}
len = iwl_rx_packet_payload_len(cmd.resp_pkt);
if (len < sizeof(*query)) {
if (len < query_len) {
IWL_ERR(mvm, "Invalid scan offload profiles query response!\n");
ret = -EIO;
goto out_free_resp;
@@ -1760,7 +1775,7 @@ iwl_mvm_netdetect_query_results(struct iwl_mvm *mvm,
query = (void *)cmd.resp_pkt->data;
results->matched_profiles = le32_to_cpu(query->matched_profiles);
memcpy(results->matches, query->matches, sizeof(results->matches));
memcpy(results->matches, query->matches, matches_len);
#ifdef CONFIG_IWLWIFI_DEBUGFS
mvm->last_netdetect_scans = le32_to_cpu(query->n_scans_done);
@@ -1771,6 +1786,57 @@ out_free_resp:
return ret;
}
static int iwl_mvm_query_num_match_chans(struct iwl_mvm *mvm,
struct iwl_mvm_nd_query_results *query,
int idx)
{
int n_chans = 0, i;
if (fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
struct iwl_scan_offload_profile_match *matches =
(struct iwl_scan_offload_profile_match *)query->matches;
for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; i++)
n_chans += hweight8(matches[idx].matching_channels[i]);
} else {
struct iwl_scan_offload_profile_match_v1 *matches =
(struct iwl_scan_offload_profile_match_v1 *)query->matches;
for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1; i++)
n_chans += hweight8(matches[idx].matching_channels[i]);
}
return n_chans;
}
static void iwl_mvm_query_set_freqs(struct iwl_mvm *mvm,
struct iwl_mvm_nd_query_results *query,
struct cfg80211_wowlan_nd_match *match,
int idx)
{
int i;
if (fw_has_api(&mvm->fw->ucode_capa,
IWL_UCODE_TLV_API_SCAN_OFFLOAD_CHANS)) {
struct iwl_scan_offload_profile_match *matches =
(struct iwl_scan_offload_profile_match *)query->matches;
for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; i++)
if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
match->channels[match->n_channels++] =
mvm->nd_channels[i]->center_freq;
} else {
struct iwl_scan_offload_profile_match_v1 *matches =
(struct iwl_scan_offload_profile_match_v1 *)query->matches;
for (i = 0; i < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN_V1 * 8; i++)
if (matches[idx].matching_channels[i / 8] & (BIT(i % 8)))
match->channels[match->n_channels++] =
mvm->nd_channels[i]->center_freq;
}
}
static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
struct ieee80211_vif *vif)
{
@@ -1783,7 +1849,7 @@ static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
struct iwl_wowlan_status *fw_status;
unsigned long matched_profiles;
u32 reasons = 0;
int i, j, n_matches, ret;
int i, n_matches, ret;
fw_status = iwl_mvm_get_wakeup_status(mvm);
if (!IS_ERR_OR_NULL(fw_status)) {
@@ -1817,14 +1883,10 @@ static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
goto out_report_nd;
for_each_set_bit(i, &matched_profiles, mvm->n_nd_match_sets) {
struct iwl_scan_offload_profile_match *fw_match;
struct cfg80211_wowlan_nd_match *match;
int idx, n_channels = 0;
fw_match = &query.matches[i];
for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN; j++)
n_channels += hweight8(fw_match->matching_channels[j]);
n_channels = iwl_mvm_query_num_match_chans(mvm, &query, i);
match = kzalloc(struct_size(match, channels, n_channels),
GFP_KERNEL);
@@ -1844,10 +1906,7 @@ static void iwl_mvm_query_netdetect_reasons(struct iwl_mvm *mvm,
if (mvm->n_nd_channels < n_channels)
continue;
for (j = 0; j < SCAN_OFFLOAD_MATCHING_CHANNELS_LEN * 8; j++)
if (fw_match->matching_channels[j / 8] & (BIT(j % 8)))
match->channels[match->n_channels++] =
mvm->nd_channels[j]->center_freq;
iwl_mvm_query_set_freqs(mvm, &query, match, i);
}
out_report_nd: