forked from Qortal/Brooklyn
You can not select more than 25 topics
Topics must start with a letter or number, can include dashes ('-') and can be up to 35 characters long.
1311 lines
34 KiB
1311 lines
34 KiB
/* |
|
* Copyright (c) 2004-2011 Atheros Communications Inc. |
|
* Copyright (c) 2011-2012 Qualcomm Atheros, Inc. |
|
* |
|
* Permission to use, copy, modify, and/or distribute this software for any |
|
* purpose with or without fee is hereby granted, provided that the above |
|
* copyright notice and this permission notice appear in all copies. |
|
* |
|
* THE SOFTWARE IS PROVIDED "AS IS" AND THE AUTHOR DISCLAIMS ALL WARRANTIES |
|
* WITH REGARD TO THIS SOFTWARE INCLUDING ALL IMPLIED WARRANTIES OF |
|
* MERCHANTABILITY AND FITNESS. IN NO EVENT SHALL THE AUTHOR BE LIABLE FOR |
|
* ANY SPECIAL, DIRECT, INDIRECT, OR CONSEQUENTIAL DAMAGES OR ANY DAMAGES |
|
* WHATSOEVER RESULTING FROM LOSS OF USE, DATA OR PROFITS, WHETHER IN AN |
|
* ACTION OF CONTRACT, NEGLIGENCE OR OTHER TORTIOUS ACTION, ARISING OUT OF |
|
* OR IN CONNECTION WITH THE USE OR PERFORMANCE OF THIS SOFTWARE. |
|
*/ |
|
|
|
#define pr_fmt(fmt) KBUILD_MODNAME ": " fmt |
|
|
|
#include "core.h" |
|
#include "hif-ops.h" |
|
#include "cfg80211.h" |
|
#include "target.h" |
|
#include "debug.h" |
|
|
|
struct ath6kl_sta *ath6kl_find_sta(struct ath6kl_vif *vif, u8 *node_addr) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
struct ath6kl_sta *conn = NULL; |
|
u8 i, max_conn; |
|
|
|
if (is_zero_ether_addr(node_addr)) |
|
return NULL; |
|
|
|
max_conn = (vif->nw_type == AP_NETWORK) ? AP_MAX_NUM_STA : 0; |
|
|
|
for (i = 0; i < max_conn; i++) { |
|
if (memcmp(node_addr, ar->sta_list[i].mac, ETH_ALEN) == 0) { |
|
conn = &ar->sta_list[i]; |
|
break; |
|
} |
|
} |
|
|
|
return conn; |
|
} |
|
|
|
struct ath6kl_sta *ath6kl_find_sta_by_aid(struct ath6kl *ar, u8 aid) |
|
{ |
|
struct ath6kl_sta *conn = NULL; |
|
u8 ctr; |
|
|
|
for (ctr = 0; ctr < AP_MAX_NUM_STA; ctr++) { |
|
if (ar->sta_list[ctr].aid == aid) { |
|
conn = &ar->sta_list[ctr]; |
|
break; |
|
} |
|
} |
|
return conn; |
|
} |
|
|
|
static void ath6kl_add_new_sta(struct ath6kl_vif *vif, u8 *mac, u16 aid, |
|
u8 *wpaie, size_t ielen, u8 keymgmt, |
|
u8 ucipher, u8 auth, u8 apsd_info) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
struct ath6kl_sta *sta; |
|
u8 free_slot; |
|
|
|
free_slot = aid - 1; |
|
|
|
sta = &ar->sta_list[free_slot]; |
|
memcpy(sta->mac, mac, ETH_ALEN); |
|
if (ielen <= ATH6KL_MAX_IE) |
|
memcpy(sta->wpa_ie, wpaie, ielen); |
|
sta->aid = aid; |
|
sta->keymgmt = keymgmt; |
|
sta->ucipher = ucipher; |
|
sta->auth = auth; |
|
sta->apsd_info = apsd_info; |
|
|
|
ar->sta_list_index = ar->sta_list_index | (1 << free_slot); |
|
ar->ap_stats.sta[free_slot].aid = cpu_to_le32(aid); |
|
aggr_conn_init(vif, vif->aggr_cntxt, sta->aggr_conn); |
|
} |
|
|
|
static void ath6kl_sta_cleanup(struct ath6kl *ar, u8 i) |
|
{ |
|
struct ath6kl_sta *sta = &ar->sta_list[i]; |
|
struct ath6kl_mgmt_buff *entry, *tmp; |
|
|
|
/* empty the queued pkts in the PS queue if any */ |
|
spin_lock_bh(&sta->psq_lock); |
|
skb_queue_purge(&sta->psq); |
|
skb_queue_purge(&sta->apsdq); |
|
|
|
if (sta->mgmt_psq_len != 0) { |
|
list_for_each_entry_safe(entry, tmp, &sta->mgmt_psq, list) { |
|
kfree(entry); |
|
} |
|
INIT_LIST_HEAD(&sta->mgmt_psq); |
|
sta->mgmt_psq_len = 0; |
|
} |
|
|
|
spin_unlock_bh(&sta->psq_lock); |
|
|
|
memset(&ar->ap_stats.sta[sta->aid - 1], 0, |
|
sizeof(struct wmi_per_sta_stat)); |
|
eth_zero_addr(sta->mac); |
|
memset(sta->wpa_ie, 0, ATH6KL_MAX_IE); |
|
sta->aid = 0; |
|
sta->sta_flags = 0; |
|
|
|
ar->sta_list_index = ar->sta_list_index & ~(1 << i); |
|
aggr_reset_state(sta->aggr_conn); |
|
} |
|
|
|
static u8 ath6kl_remove_sta(struct ath6kl *ar, u8 *mac, u16 reason) |
|
{ |
|
u8 i, removed = 0; |
|
|
|
if (is_zero_ether_addr(mac)) |
|
return removed; |
|
|
|
if (is_broadcast_ether_addr(mac)) { |
|
ath6kl_dbg(ATH6KL_DBG_TRC, "deleting all station\n"); |
|
|
|
for (i = 0; i < AP_MAX_NUM_STA; i++) { |
|
if (!is_zero_ether_addr(ar->sta_list[i].mac)) { |
|
ath6kl_sta_cleanup(ar, i); |
|
removed = 1; |
|
} |
|
} |
|
} else { |
|
for (i = 0; i < AP_MAX_NUM_STA; i++) { |
|
if (memcmp(ar->sta_list[i].mac, mac, ETH_ALEN) == 0) { |
|
ath6kl_dbg(ATH6KL_DBG_TRC, |
|
"deleting station %pM aid=%d reason=%d\n", |
|
mac, ar->sta_list[i].aid, reason); |
|
ath6kl_sta_cleanup(ar, i); |
|
removed = 1; |
|
break; |
|
} |
|
} |
|
} |
|
|
|
return removed; |
|
} |
|
|
|
enum htc_endpoint_id ath6kl_ac2_endpoint_id(void *devt, u8 ac) |
|
{ |
|
struct ath6kl *ar = devt; |
|
return ar->ac2ep_map[ac]; |
|
} |
|
|
|
struct ath6kl_cookie *ath6kl_alloc_cookie(struct ath6kl *ar) |
|
{ |
|
struct ath6kl_cookie *cookie; |
|
|
|
cookie = ar->cookie_list; |
|
if (cookie != NULL) { |
|
ar->cookie_list = cookie->arc_list_next; |
|
ar->cookie_count--; |
|
} |
|
|
|
return cookie; |
|
} |
|
|
|
void ath6kl_cookie_init(struct ath6kl *ar) |
|
{ |
|
u32 i; |
|
|
|
ar->cookie_list = NULL; |
|
ar->cookie_count = 0; |
|
|
|
memset(ar->cookie_mem, 0, sizeof(ar->cookie_mem)); |
|
|
|
for (i = 0; i < MAX_COOKIE_NUM; i++) |
|
ath6kl_free_cookie(ar, &ar->cookie_mem[i]); |
|
} |
|
|
|
void ath6kl_cookie_cleanup(struct ath6kl *ar) |
|
{ |
|
ar->cookie_list = NULL; |
|
ar->cookie_count = 0; |
|
} |
|
|
|
void ath6kl_free_cookie(struct ath6kl *ar, struct ath6kl_cookie *cookie) |
|
{ |
|
/* Insert first */ |
|
|
|
if (!ar || !cookie) |
|
return; |
|
|
|
cookie->arc_list_next = ar->cookie_list; |
|
ar->cookie_list = cookie; |
|
ar->cookie_count++; |
|
} |
|
|
|
/* |
|
* Read from the hardware through its diagnostic window. No cooperation |
|
* from the firmware is required for this. |
|
*/ |
|
int ath6kl_diag_read32(struct ath6kl *ar, u32 address, u32 *value) |
|
{ |
|
int ret; |
|
|
|
ret = ath6kl_hif_diag_read32(ar, address, value); |
|
if (ret) { |
|
ath6kl_warn("failed to read32 through diagnose window: %d\n", |
|
ret); |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
/* |
|
* Write to the ATH6KL through its diagnostic window. No cooperation from |
|
* the Target is required for this. |
|
*/ |
|
int ath6kl_diag_write32(struct ath6kl *ar, u32 address, __le32 value) |
|
{ |
|
int ret; |
|
|
|
ret = ath6kl_hif_diag_write32(ar, address, value); |
|
|
|
if (ret) { |
|
ath6kl_err("failed to write 0x%x during diagnose window to 0x%x\n", |
|
address, value); |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ath6kl_diag_read(struct ath6kl *ar, u32 address, void *data, u32 length) |
|
{ |
|
u32 count, *buf = data; |
|
int ret; |
|
|
|
if (WARN_ON(length % 4)) |
|
return -EINVAL; |
|
|
|
for (count = 0; count < length / 4; count++, address += 4) { |
|
ret = ath6kl_diag_read32(ar, address, &buf[count]); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ath6kl_diag_write(struct ath6kl *ar, u32 address, void *data, u32 length) |
|
{ |
|
u32 count; |
|
__le32 *buf = data; |
|
int ret; |
|
|
|
if (WARN_ON(length % 4)) |
|
return -EINVAL; |
|
|
|
for (count = 0; count < length / 4; count++, address += 4) { |
|
ret = ath6kl_diag_write32(ar, address, buf[count]); |
|
if (ret) |
|
return ret; |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
int ath6kl_read_fwlogs(struct ath6kl *ar) |
|
{ |
|
struct ath6kl_dbglog_hdr debug_hdr; |
|
struct ath6kl_dbglog_buf debug_buf; |
|
u32 address, length, firstbuf, debug_hdr_addr; |
|
int ret, loop; |
|
u8 *buf; |
|
|
|
buf = kmalloc(ATH6KL_FWLOG_PAYLOAD_SIZE, GFP_KERNEL); |
|
if (!buf) |
|
return -ENOMEM; |
|
|
|
address = TARG_VTOP(ar->target_type, |
|
ath6kl_get_hi_item_addr(ar, |
|
HI_ITEM(hi_dbglog_hdr))); |
|
|
|
ret = ath6kl_diag_read32(ar, address, &debug_hdr_addr); |
|
if (ret) |
|
goto out; |
|
|
|
/* Get the contents of the ring buffer */ |
|
if (debug_hdr_addr == 0) { |
|
ath6kl_warn("Invalid address for debug_hdr_addr\n"); |
|
ret = -EINVAL; |
|
goto out; |
|
} |
|
|
|
address = TARG_VTOP(ar->target_type, debug_hdr_addr); |
|
ret = ath6kl_diag_read(ar, address, &debug_hdr, sizeof(debug_hdr)); |
|
if (ret) |
|
goto out; |
|
|
|
address = TARG_VTOP(ar->target_type, |
|
le32_to_cpu(debug_hdr.dbuf_addr)); |
|
firstbuf = address; |
|
ret = ath6kl_diag_read(ar, address, &debug_buf, sizeof(debug_buf)); |
|
if (ret) |
|
goto out; |
|
|
|
loop = 100; |
|
|
|
do { |
|
address = TARG_VTOP(ar->target_type, |
|
le32_to_cpu(debug_buf.buffer_addr)); |
|
length = le32_to_cpu(debug_buf.length); |
|
|
|
if (length != 0 && (le32_to_cpu(debug_buf.length) <= |
|
le32_to_cpu(debug_buf.bufsize))) { |
|
length = ALIGN(length, 4); |
|
|
|
ret = ath6kl_diag_read(ar, address, |
|
buf, length); |
|
if (ret) |
|
goto out; |
|
|
|
ath6kl_debug_fwlog_event(ar, buf, length); |
|
} |
|
|
|
address = TARG_VTOP(ar->target_type, |
|
le32_to_cpu(debug_buf.next)); |
|
ret = ath6kl_diag_read(ar, address, &debug_buf, |
|
sizeof(debug_buf)); |
|
if (ret) |
|
goto out; |
|
|
|
loop--; |
|
|
|
if (WARN_ON(loop == 0)) { |
|
ret = -ETIMEDOUT; |
|
goto out; |
|
} |
|
} while (address != firstbuf); |
|
|
|
out: |
|
kfree(buf); |
|
|
|
return ret; |
|
} |
|
|
|
static void ath6kl_install_static_wep_keys(struct ath6kl_vif *vif) |
|
{ |
|
u8 index; |
|
u8 keyusage; |
|
|
|
for (index = 0; index <= WMI_MAX_KEY_INDEX; index++) { |
|
if (vif->wep_key_list[index].key_len) { |
|
keyusage = GROUP_USAGE; |
|
if (index == vif->def_txkey_index) |
|
keyusage |= TX_USAGE; |
|
|
|
ath6kl_wmi_addkey_cmd(vif->ar->wmi, vif->fw_vif_idx, |
|
index, |
|
WEP_CRYPT, |
|
keyusage, |
|
vif->wep_key_list[index].key_len, |
|
NULL, 0, |
|
vif->wep_key_list[index].key, |
|
KEY_OP_INIT_VAL, NULL, |
|
NO_SYNC_WMIFLAG); |
|
} |
|
} |
|
} |
|
|
|
void ath6kl_connect_ap_mode_bss(struct ath6kl_vif *vif, u16 channel) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
struct ath6kl_req_key *ik; |
|
int res; |
|
u8 key_rsc[ATH6KL_KEY_SEQ_LEN]; |
|
|
|
ik = &ar->ap_mode_bkey; |
|
|
|
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "AP mode started on %u MHz\n", channel); |
|
|
|
switch (vif->auth_mode) { |
|
case NONE_AUTH: |
|
if (vif->prwise_crypto == WEP_CRYPT) |
|
ath6kl_install_static_wep_keys(vif); |
|
if (!ik->valid || ik->key_type != WAPI_CRYPT) |
|
break; |
|
/* for WAPI, we need to set the delayed group key, continue: */ |
|
fallthrough; |
|
case WPA_PSK_AUTH: |
|
case WPA2_PSK_AUTH: |
|
case (WPA_PSK_AUTH | WPA2_PSK_AUTH): |
|
if (!ik->valid) |
|
break; |
|
|
|
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
|
"Delayed addkey for the initial group key for AP mode\n"); |
|
memset(key_rsc, 0, sizeof(key_rsc)); |
|
res = ath6kl_wmi_addkey_cmd( |
|
ar->wmi, vif->fw_vif_idx, ik->key_index, ik->key_type, |
|
GROUP_USAGE, ik->key_len, key_rsc, ATH6KL_KEY_SEQ_LEN, |
|
ik->key, |
|
KEY_OP_INIT_VAL, NULL, SYNC_BOTH_WMIFLAG); |
|
if (res) { |
|
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, |
|
"Delayed addkey failed: %d\n", res); |
|
} |
|
break; |
|
} |
|
|
|
if (ar->last_ch != channel) |
|
/* we actually don't know the phymode, default to HT20 */ |
|
ath6kl_cfg80211_ch_switch_notify(vif, channel, WMI_11G_HT20); |
|
|
|
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, NONE_BSS_FILTER, 0); |
|
set_bit(CONNECTED, &vif->flags); |
|
netif_carrier_on(vif->ndev); |
|
} |
|
|
|
void ath6kl_connect_ap_mode_sta(struct ath6kl_vif *vif, u16 aid, u8 *mac_addr, |
|
u8 keymgmt, u8 ucipher, u8 auth, |
|
u8 assoc_req_len, u8 *assoc_info, u8 apsd_info) |
|
{ |
|
u8 *ies = NULL, *wpa_ie = NULL, *pos; |
|
size_t ies_len = 0; |
|
struct station_info *sinfo; |
|
|
|
ath6kl_dbg(ATH6KL_DBG_TRC, "new station %pM aid=%d\n", mac_addr, aid); |
|
|
|
if (aid < 1 || aid > AP_MAX_NUM_STA) |
|
return; |
|
|
|
if (assoc_req_len > sizeof(struct ieee80211_hdr_3addr)) { |
|
struct ieee80211_mgmt *mgmt = |
|
(struct ieee80211_mgmt *) assoc_info; |
|
if (ieee80211_is_assoc_req(mgmt->frame_control) && |
|
assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) + |
|
sizeof(mgmt->u.assoc_req)) { |
|
ies = mgmt->u.assoc_req.variable; |
|
ies_len = assoc_info + assoc_req_len - ies; |
|
} else if (ieee80211_is_reassoc_req(mgmt->frame_control) && |
|
assoc_req_len >= sizeof(struct ieee80211_hdr_3addr) |
|
+ sizeof(mgmt->u.reassoc_req)) { |
|
ies = mgmt->u.reassoc_req.variable; |
|
ies_len = assoc_info + assoc_req_len - ies; |
|
} |
|
} |
|
|
|
pos = ies; |
|
while (pos && pos + 1 < ies + ies_len) { |
|
if (pos + 2 + pos[1] > ies + ies_len) |
|
break; |
|
if (pos[0] == WLAN_EID_RSN) |
|
wpa_ie = pos; /* RSN IE */ |
|
else if (pos[0] == WLAN_EID_VENDOR_SPECIFIC && |
|
pos[1] >= 4 && |
|
pos[2] == 0x00 && pos[3] == 0x50 && pos[4] == 0xf2) { |
|
if (pos[5] == 0x01) |
|
wpa_ie = pos; /* WPA IE */ |
|
else if (pos[5] == 0x04) { |
|
wpa_ie = pos; /* WPS IE */ |
|
break; /* overrides WPA/RSN IE */ |
|
} |
|
} else if (pos[0] == 0x44 && wpa_ie == NULL) { |
|
/* |
|
* Note: WAPI Parameter Set IE re-uses Element ID that |
|
* was officially allocated for BSS AC Access Delay. As |
|
* such, we need to be a bit more careful on when |
|
* parsing the frame. However, BSS AC Access Delay |
|
* element is not supposed to be included in |
|
* (Re)Association Request frames, so this should not |
|
* cause problems. |
|
*/ |
|
wpa_ie = pos; /* WAPI IE */ |
|
break; |
|
} |
|
pos += 2 + pos[1]; |
|
} |
|
|
|
ath6kl_add_new_sta(vif, mac_addr, aid, wpa_ie, |
|
wpa_ie ? 2 + wpa_ie[1] : 0, |
|
keymgmt, ucipher, auth, apsd_info); |
|
|
|
/* send event to application */ |
|
sinfo = kzalloc(sizeof(*sinfo), GFP_KERNEL); |
|
if (!sinfo) |
|
return; |
|
|
|
/* TODO: sinfo.generation */ |
|
|
|
sinfo->assoc_req_ies = ies; |
|
sinfo->assoc_req_ies_len = ies_len; |
|
|
|
cfg80211_new_sta(vif->ndev, mac_addr, sinfo, GFP_KERNEL); |
|
|
|
netif_wake_queue(vif->ndev); |
|
|
|
kfree(sinfo); |
|
} |
|
|
|
void disconnect_timer_handler(struct timer_list *t) |
|
{ |
|
struct ath6kl_vif *vif = from_timer(vif, t, disconnect_timer); |
|
|
|
ath6kl_init_profile_info(vif); |
|
ath6kl_disconnect(vif); |
|
} |
|
|
|
void ath6kl_disconnect(struct ath6kl_vif *vif) |
|
{ |
|
if (test_bit(CONNECTED, &vif->flags) || |
|
test_bit(CONNECT_PEND, &vif->flags)) { |
|
ath6kl_wmi_disconnect_cmd(vif->ar->wmi, vif->fw_vif_idx); |
|
/* |
|
* Disconnect command is issued, clear the connect pending |
|
* flag. The connected flag will be cleared in |
|
* disconnect event notification. |
|
*/ |
|
clear_bit(CONNECT_PEND, &vif->flags); |
|
} |
|
} |
|
|
|
/* WMI Event handlers */ |
|
|
|
void ath6kl_ready_event(void *devt, u8 *datap, u32 sw_ver, u32 abi_ver, |
|
enum wmi_phy_cap cap) |
|
{ |
|
struct ath6kl *ar = devt; |
|
|
|
memcpy(ar->mac_addr, datap, ETH_ALEN); |
|
|
|
ath6kl_dbg(ATH6KL_DBG_BOOT, |
|
"ready event mac addr %pM sw_ver 0x%x abi_ver 0x%x cap 0x%x\n", |
|
ar->mac_addr, sw_ver, abi_ver, cap); |
|
|
|
ar->version.wlan_ver = sw_ver; |
|
ar->version.abi_ver = abi_ver; |
|
ar->hw.cap = cap; |
|
|
|
if (strlen(ar->wiphy->fw_version) == 0) { |
|
snprintf(ar->wiphy->fw_version, |
|
sizeof(ar->wiphy->fw_version), |
|
"%u.%u.%u.%u", |
|
(ar->version.wlan_ver & 0xf0000000) >> 28, |
|
(ar->version.wlan_ver & 0x0f000000) >> 24, |
|
(ar->version.wlan_ver & 0x00ff0000) >> 16, |
|
(ar->version.wlan_ver & 0x0000ffff)); |
|
} |
|
|
|
/* indicate to the waiting thread that the ready event was received */ |
|
set_bit(WMI_READY, &ar->flag); |
|
wake_up(&ar->event_wq); |
|
} |
|
|
|
void ath6kl_scan_complete_evt(struct ath6kl_vif *vif, int status) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
bool aborted = false; |
|
|
|
if (status != WMI_SCAN_STATUS_SUCCESS) |
|
aborted = true; |
|
|
|
ath6kl_cfg80211_scan_complete_event(vif, aborted); |
|
|
|
if (!ar->usr_bss_filter) { |
|
clear_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
|
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
|
NONE_BSS_FILTER, 0); |
|
} |
|
|
|
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "scan complete: %d\n", status); |
|
} |
|
|
|
static int ath6kl_commit_ch_switch(struct ath6kl_vif *vif, u16 channel) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
|
|
vif->profile.ch = cpu_to_le16(channel); |
|
|
|
switch (vif->nw_type) { |
|
case AP_NETWORK: |
|
/* |
|
* reconfigure any saved RSN IE capabilites in the beacon / |
|
* probe response to stay in sync with the supplicant. |
|
*/ |
|
if (vif->rsn_capab && |
|
test_bit(ATH6KL_FW_CAPABILITY_RSN_CAP_OVERRIDE, |
|
ar->fw_capabilities)) |
|
ath6kl_wmi_set_ie_cmd(ar->wmi, vif->fw_vif_idx, |
|
WLAN_EID_RSN, WMI_RSN_IE_CAPB, |
|
(const u8 *) &vif->rsn_capab, |
|
sizeof(vif->rsn_capab)); |
|
|
|
return ath6kl_wmi_ap_profile_commit(ar->wmi, vif->fw_vif_idx, |
|
&vif->profile); |
|
default: |
|
ath6kl_err("won't switch channels nw_type=%d\n", vif->nw_type); |
|
return -ENOTSUPP; |
|
} |
|
} |
|
|
|
static void ath6kl_check_ch_switch(struct ath6kl *ar, u16 channel) |
|
{ |
|
struct ath6kl_vif *vif; |
|
int res = 0; |
|
|
|
if (!ar->want_ch_switch) |
|
return; |
|
|
|
spin_lock_bh(&ar->list_lock); |
|
list_for_each_entry(vif, &ar->vif_list, list) { |
|
if (ar->want_ch_switch & (1 << vif->fw_vif_idx)) |
|
res = ath6kl_commit_ch_switch(vif, channel); |
|
|
|
/* if channel switch failed, oh well we tried */ |
|
ar->want_ch_switch &= ~(1 << vif->fw_vif_idx); |
|
|
|
if (res) |
|
ath6kl_err("channel switch failed nw_type %d res %d\n", |
|
vif->nw_type, res); |
|
} |
|
spin_unlock_bh(&ar->list_lock); |
|
} |
|
|
|
void ath6kl_connect_event(struct ath6kl_vif *vif, u16 channel, u8 *bssid, |
|
u16 listen_int, u16 beacon_int, |
|
enum network_type net_type, u8 beacon_ie_len, |
|
u8 assoc_req_len, u8 assoc_resp_len, |
|
u8 *assoc_info) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
|
|
ath6kl_cfg80211_connect_event(vif, channel, bssid, |
|
listen_int, beacon_int, |
|
net_type, beacon_ie_len, |
|
assoc_req_len, assoc_resp_len, |
|
assoc_info); |
|
|
|
memcpy(vif->bssid, bssid, sizeof(vif->bssid)); |
|
vif->bss_ch = channel; |
|
|
|
if (vif->nw_type == INFRA_NETWORK) { |
|
ath6kl_wmi_listeninterval_cmd(ar->wmi, vif->fw_vif_idx, |
|
vif->listen_intvl_t, 0); |
|
ath6kl_check_ch_switch(ar, channel); |
|
} |
|
|
|
netif_wake_queue(vif->ndev); |
|
|
|
/* Update connect & link status atomically */ |
|
spin_lock_bh(&vif->if_lock); |
|
set_bit(CONNECTED, &vif->flags); |
|
clear_bit(CONNECT_PEND, &vif->flags); |
|
netif_carrier_on(vif->ndev); |
|
spin_unlock_bh(&vif->if_lock); |
|
|
|
aggr_reset_state(vif->aggr_cntxt->aggr_conn); |
|
vif->reconnect_flag = 0; |
|
|
|
if ((vif->nw_type == ADHOC_NETWORK) && ar->ibss_ps_enable) { |
|
memset(ar->node_map, 0, sizeof(ar->node_map)); |
|
ar->node_num = 0; |
|
ar->next_ep_id = ENDPOINT_2; |
|
} |
|
|
|
if (!ar->usr_bss_filter) { |
|
set_bit(CLEAR_BSSFILTER_ON_BEACON, &vif->flags); |
|
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
|
CURRENT_BSS_FILTER, 0); |
|
} |
|
} |
|
|
|
void ath6kl_tkip_micerr_event(struct ath6kl_vif *vif, u8 keyid, bool ismcast) |
|
{ |
|
struct ath6kl_sta *sta; |
|
struct ath6kl *ar = vif->ar; |
|
u8 tsc[6]; |
|
|
|
/* |
|
* For AP case, keyid will have aid of STA which sent pkt with |
|
* MIC error. Use this aid to get MAC & send it to hostapd. |
|
*/ |
|
if (vif->nw_type == AP_NETWORK) { |
|
sta = ath6kl_find_sta_by_aid(ar, (keyid >> 2)); |
|
if (!sta) |
|
return; |
|
|
|
ath6kl_dbg(ATH6KL_DBG_TRC, |
|
"ap tkip mic error received from aid=%d\n", keyid); |
|
|
|
memset(tsc, 0, sizeof(tsc)); /* FIX: get correct TSC */ |
|
cfg80211_michael_mic_failure(vif->ndev, sta->mac, |
|
NL80211_KEYTYPE_PAIRWISE, keyid, |
|
tsc, GFP_KERNEL); |
|
} else { |
|
ath6kl_cfg80211_tkip_micerr_event(vif, keyid, ismcast); |
|
} |
|
} |
|
|
|
static void ath6kl_update_target_stats(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
|
{ |
|
struct wmi_target_stats *tgt_stats = |
|
(struct wmi_target_stats *) ptr; |
|
struct ath6kl *ar = vif->ar; |
|
struct target_stats *stats = &vif->target_stats; |
|
struct tkip_ccmp_stats *ccmp_stats; |
|
s32 rate; |
|
u8 ac; |
|
|
|
if (len < sizeof(*tgt_stats)) |
|
return; |
|
|
|
ath6kl_dbg(ATH6KL_DBG_TRC, "updating target stats\n"); |
|
|
|
stats->tx_pkt += le32_to_cpu(tgt_stats->stats.tx.pkt); |
|
stats->tx_byte += le32_to_cpu(tgt_stats->stats.tx.byte); |
|
stats->tx_ucast_pkt += le32_to_cpu(tgt_stats->stats.tx.ucast_pkt); |
|
stats->tx_ucast_byte += le32_to_cpu(tgt_stats->stats.tx.ucast_byte); |
|
stats->tx_mcast_pkt += le32_to_cpu(tgt_stats->stats.tx.mcast_pkt); |
|
stats->tx_mcast_byte += le32_to_cpu(tgt_stats->stats.tx.mcast_byte); |
|
stats->tx_bcast_pkt += le32_to_cpu(tgt_stats->stats.tx.bcast_pkt); |
|
stats->tx_bcast_byte += le32_to_cpu(tgt_stats->stats.tx.bcast_byte); |
|
stats->tx_rts_success_cnt += |
|
le32_to_cpu(tgt_stats->stats.tx.rts_success_cnt); |
|
|
|
for (ac = 0; ac < WMM_NUM_AC; ac++) |
|
stats->tx_pkt_per_ac[ac] += |
|
le32_to_cpu(tgt_stats->stats.tx.pkt_per_ac[ac]); |
|
|
|
stats->tx_err += le32_to_cpu(tgt_stats->stats.tx.err); |
|
stats->tx_fail_cnt += le32_to_cpu(tgt_stats->stats.tx.fail_cnt); |
|
stats->tx_retry_cnt += le32_to_cpu(tgt_stats->stats.tx.retry_cnt); |
|
stats->tx_mult_retry_cnt += |
|
le32_to_cpu(tgt_stats->stats.tx.mult_retry_cnt); |
|
stats->tx_rts_fail_cnt += |
|
le32_to_cpu(tgt_stats->stats.tx.rts_fail_cnt); |
|
|
|
rate = a_sle32_to_cpu(tgt_stats->stats.tx.ucast_rate); |
|
stats->tx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate); |
|
|
|
stats->rx_pkt += le32_to_cpu(tgt_stats->stats.rx.pkt); |
|
stats->rx_byte += le32_to_cpu(tgt_stats->stats.rx.byte); |
|
stats->rx_ucast_pkt += le32_to_cpu(tgt_stats->stats.rx.ucast_pkt); |
|
stats->rx_ucast_byte += le32_to_cpu(tgt_stats->stats.rx.ucast_byte); |
|
stats->rx_mcast_pkt += le32_to_cpu(tgt_stats->stats.rx.mcast_pkt); |
|
stats->rx_mcast_byte += le32_to_cpu(tgt_stats->stats.rx.mcast_byte); |
|
stats->rx_bcast_pkt += le32_to_cpu(tgt_stats->stats.rx.bcast_pkt); |
|
stats->rx_bcast_byte += le32_to_cpu(tgt_stats->stats.rx.bcast_byte); |
|
stats->rx_frgment_pkt += le32_to_cpu(tgt_stats->stats.rx.frgment_pkt); |
|
stats->rx_err += le32_to_cpu(tgt_stats->stats.rx.err); |
|
stats->rx_crc_err += le32_to_cpu(tgt_stats->stats.rx.crc_err); |
|
stats->rx_key_cache_miss += |
|
le32_to_cpu(tgt_stats->stats.rx.key_cache_miss); |
|
stats->rx_decrypt_err += le32_to_cpu(tgt_stats->stats.rx.decrypt_err); |
|
stats->rx_dupl_frame += le32_to_cpu(tgt_stats->stats.rx.dupl_frame); |
|
|
|
rate = a_sle32_to_cpu(tgt_stats->stats.rx.ucast_rate); |
|
stats->rx_ucast_rate = ath6kl_wmi_get_rate(ar->wmi, rate); |
|
|
|
ccmp_stats = &tgt_stats->stats.tkip_ccmp_stats; |
|
|
|
stats->tkip_local_mic_fail += |
|
le32_to_cpu(ccmp_stats->tkip_local_mic_fail); |
|
stats->tkip_cnter_measures_invoked += |
|
le32_to_cpu(ccmp_stats->tkip_cnter_measures_invoked); |
|
stats->tkip_fmt_err += le32_to_cpu(ccmp_stats->tkip_fmt_err); |
|
|
|
stats->ccmp_fmt_err += le32_to_cpu(ccmp_stats->ccmp_fmt_err); |
|
stats->ccmp_replays += le32_to_cpu(ccmp_stats->ccmp_replays); |
|
|
|
stats->pwr_save_fail_cnt += |
|
le32_to_cpu(tgt_stats->pm_stats.pwr_save_failure_cnt); |
|
stats->noise_floor_calib = |
|
a_sle32_to_cpu(tgt_stats->noise_floor_calib); |
|
|
|
stats->cs_bmiss_cnt += |
|
le32_to_cpu(tgt_stats->cserv_stats.cs_bmiss_cnt); |
|
stats->cs_low_rssi_cnt += |
|
le32_to_cpu(tgt_stats->cserv_stats.cs_low_rssi_cnt); |
|
stats->cs_connect_cnt += |
|
le16_to_cpu(tgt_stats->cserv_stats.cs_connect_cnt); |
|
stats->cs_discon_cnt += |
|
le16_to_cpu(tgt_stats->cserv_stats.cs_discon_cnt); |
|
|
|
stats->cs_ave_beacon_rssi = |
|
a_sle16_to_cpu(tgt_stats->cserv_stats.cs_ave_beacon_rssi); |
|
|
|
stats->cs_last_roam_msec = |
|
tgt_stats->cserv_stats.cs_last_roam_msec; |
|
stats->cs_snr = tgt_stats->cserv_stats.cs_snr; |
|
stats->cs_rssi = a_sle16_to_cpu(tgt_stats->cserv_stats.cs_rssi); |
|
|
|
stats->lq_val = le32_to_cpu(tgt_stats->lq_val); |
|
|
|
stats->wow_pkt_dropped += |
|
le32_to_cpu(tgt_stats->wow_stats.wow_pkt_dropped); |
|
stats->wow_host_pkt_wakeups += |
|
tgt_stats->wow_stats.wow_host_pkt_wakeups; |
|
stats->wow_host_evt_wakeups += |
|
tgt_stats->wow_stats.wow_host_evt_wakeups; |
|
stats->wow_evt_discarded += |
|
le16_to_cpu(tgt_stats->wow_stats.wow_evt_discarded); |
|
|
|
stats->arp_received = le32_to_cpu(tgt_stats->arp_stats.arp_received); |
|
stats->arp_replied = le32_to_cpu(tgt_stats->arp_stats.arp_replied); |
|
stats->arp_matched = le32_to_cpu(tgt_stats->arp_stats.arp_matched); |
|
|
|
if (test_bit(STATS_UPDATE_PEND, &vif->flags)) { |
|
clear_bit(STATS_UPDATE_PEND, &vif->flags); |
|
wake_up(&ar->event_wq); |
|
} |
|
} |
|
|
|
static void ath6kl_add_le32(__le32 *var, __le32 val) |
|
{ |
|
*var = cpu_to_le32(le32_to_cpu(*var) + le32_to_cpu(val)); |
|
} |
|
|
|
void ath6kl_tgt_stats_event(struct ath6kl_vif *vif, u8 *ptr, u32 len) |
|
{ |
|
struct wmi_ap_mode_stat *p = (struct wmi_ap_mode_stat *) ptr; |
|
struct ath6kl *ar = vif->ar; |
|
struct wmi_ap_mode_stat *ap = &ar->ap_stats; |
|
struct wmi_per_sta_stat *st_ap, *st_p; |
|
u8 ac; |
|
|
|
if (vif->nw_type == AP_NETWORK) { |
|
if (len < sizeof(*p)) |
|
return; |
|
|
|
for (ac = 0; ac < AP_MAX_NUM_STA; ac++) { |
|
st_ap = &ap->sta[ac]; |
|
st_p = &p->sta[ac]; |
|
|
|
ath6kl_add_le32(&st_ap->tx_bytes, st_p->tx_bytes); |
|
ath6kl_add_le32(&st_ap->tx_pkts, st_p->tx_pkts); |
|
ath6kl_add_le32(&st_ap->tx_error, st_p->tx_error); |
|
ath6kl_add_le32(&st_ap->tx_discard, st_p->tx_discard); |
|
ath6kl_add_le32(&st_ap->rx_bytes, st_p->rx_bytes); |
|
ath6kl_add_le32(&st_ap->rx_pkts, st_p->rx_pkts); |
|
ath6kl_add_le32(&st_ap->rx_error, st_p->rx_error); |
|
ath6kl_add_le32(&st_ap->rx_discard, st_p->rx_discard); |
|
} |
|
|
|
} else { |
|
ath6kl_update_target_stats(vif, ptr, len); |
|
} |
|
} |
|
|
|
void ath6kl_wakeup_event(void *dev) |
|
{ |
|
struct ath6kl *ar = (struct ath6kl *) dev; |
|
|
|
wake_up(&ar->event_wq); |
|
} |
|
|
|
void ath6kl_txpwr_rx_evt(void *devt, u8 tx_pwr) |
|
{ |
|
struct ath6kl *ar = (struct ath6kl *) devt; |
|
|
|
ar->tx_pwr = tx_pwr; |
|
wake_up(&ar->event_wq); |
|
} |
|
|
|
void ath6kl_pspoll_event(struct ath6kl_vif *vif, u8 aid) |
|
{ |
|
struct ath6kl_sta *conn; |
|
struct sk_buff *skb; |
|
bool psq_empty = false; |
|
struct ath6kl *ar = vif->ar; |
|
struct ath6kl_mgmt_buff *mgmt_buf; |
|
|
|
conn = ath6kl_find_sta_by_aid(ar, aid); |
|
|
|
if (!conn) |
|
return; |
|
/* |
|
* Send out a packet queued on ps queue. When the ps queue |
|
* becomes empty update the PVB for this station. |
|
*/ |
|
spin_lock_bh(&conn->psq_lock); |
|
psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); |
|
spin_unlock_bh(&conn->psq_lock); |
|
|
|
if (psq_empty) |
|
/* TODO: Send out a NULL data frame */ |
|
return; |
|
|
|
spin_lock_bh(&conn->psq_lock); |
|
if (conn->mgmt_psq_len > 0) { |
|
mgmt_buf = list_first_entry(&conn->mgmt_psq, |
|
struct ath6kl_mgmt_buff, list); |
|
list_del(&mgmt_buf->list); |
|
conn->mgmt_psq_len--; |
|
spin_unlock_bh(&conn->psq_lock); |
|
|
|
conn->sta_flags |= STA_PS_POLLED; |
|
ath6kl_wmi_send_mgmt_cmd(ar->wmi, vif->fw_vif_idx, |
|
mgmt_buf->id, mgmt_buf->freq, |
|
mgmt_buf->wait, mgmt_buf->buf, |
|
mgmt_buf->len, mgmt_buf->no_cck); |
|
conn->sta_flags &= ~STA_PS_POLLED; |
|
kfree(mgmt_buf); |
|
} else { |
|
skb = skb_dequeue(&conn->psq); |
|
spin_unlock_bh(&conn->psq_lock); |
|
|
|
conn->sta_flags |= STA_PS_POLLED; |
|
ath6kl_data_tx(skb, vif->ndev); |
|
conn->sta_flags &= ~STA_PS_POLLED; |
|
} |
|
|
|
spin_lock_bh(&conn->psq_lock); |
|
psq_empty = skb_queue_empty(&conn->psq) && (conn->mgmt_psq_len == 0); |
|
spin_unlock_bh(&conn->psq_lock); |
|
|
|
if (psq_empty) |
|
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, conn->aid, 0); |
|
} |
|
|
|
void ath6kl_dtimexpiry_event(struct ath6kl_vif *vif) |
|
{ |
|
bool mcastq_empty = false; |
|
struct sk_buff *skb; |
|
struct ath6kl *ar = vif->ar; |
|
|
|
/* |
|
* If there are no associated STAs, ignore the DTIM expiry event. |
|
* There can be potential race conditions where the last associated |
|
* STA may disconnect & before the host could clear the 'Indicate |
|
* DTIM' request to the firmware, the firmware would have just |
|
* indicated a DTIM expiry event. The race is between 'clear DTIM |
|
* expiry cmd' going from the host to the firmware & the DTIM |
|
* expiry event happening from the firmware to the host. |
|
*/ |
|
if (!ar->sta_list_index) |
|
return; |
|
|
|
spin_lock_bh(&ar->mcastpsq_lock); |
|
mcastq_empty = skb_queue_empty(&ar->mcastpsq); |
|
spin_unlock_bh(&ar->mcastpsq_lock); |
|
|
|
if (mcastq_empty) |
|
return; |
|
|
|
/* set the STA flag to dtim_expired for the frame to go out */ |
|
set_bit(DTIM_EXPIRED, &vif->flags); |
|
|
|
spin_lock_bh(&ar->mcastpsq_lock); |
|
while ((skb = skb_dequeue(&ar->mcastpsq)) != NULL) { |
|
spin_unlock_bh(&ar->mcastpsq_lock); |
|
|
|
ath6kl_data_tx(skb, vif->ndev); |
|
|
|
spin_lock_bh(&ar->mcastpsq_lock); |
|
} |
|
spin_unlock_bh(&ar->mcastpsq_lock); |
|
|
|
clear_bit(DTIM_EXPIRED, &vif->flags); |
|
|
|
/* clear the LSB of the BitMapCtl field of the TIM IE */ |
|
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, MCAST_AID, 0); |
|
} |
|
|
|
void ath6kl_disconnect_event(struct ath6kl_vif *vif, u8 reason, u8 *bssid, |
|
u8 assoc_resp_len, u8 *assoc_info, |
|
u16 prot_reason_status) |
|
{ |
|
struct ath6kl *ar = vif->ar; |
|
|
|
if (vif->nw_type == AP_NETWORK) { |
|
/* disconnect due to other STA vif switching channels */ |
|
if (reason == BSS_DISCONNECTED && |
|
prot_reason_status == WMI_AP_REASON_STA_ROAM) { |
|
ar->want_ch_switch |= 1 << vif->fw_vif_idx; |
|
/* bail back to this channel if STA vif fails connect */ |
|
ar->last_ch = le16_to_cpu(vif->profile.ch); |
|
} |
|
|
|
if (prot_reason_status == WMI_AP_REASON_MAX_STA) { |
|
/* send max client reached notification to user space */ |
|
cfg80211_conn_failed(vif->ndev, bssid, |
|
NL80211_CONN_FAIL_MAX_CLIENTS, |
|
GFP_KERNEL); |
|
} |
|
|
|
if (prot_reason_status == WMI_AP_REASON_ACL) { |
|
/* send blocked client notification to user space */ |
|
cfg80211_conn_failed(vif->ndev, bssid, |
|
NL80211_CONN_FAIL_BLOCKED_CLIENT, |
|
GFP_KERNEL); |
|
} |
|
|
|
if (!ath6kl_remove_sta(ar, bssid, prot_reason_status)) |
|
return; |
|
|
|
/* if no more associated STAs, empty the mcast PS q */ |
|
if (ar->sta_list_index == 0) { |
|
spin_lock_bh(&ar->mcastpsq_lock); |
|
skb_queue_purge(&ar->mcastpsq); |
|
spin_unlock_bh(&ar->mcastpsq_lock); |
|
|
|
/* clear the LSB of the TIM IE's BitMapCtl field */ |
|
if (test_bit(WMI_READY, &ar->flag)) |
|
ath6kl_wmi_set_pvb_cmd(ar->wmi, vif->fw_vif_idx, |
|
MCAST_AID, 0); |
|
} |
|
|
|
if (!is_broadcast_ether_addr(bssid)) { |
|
/* send event to application */ |
|
cfg80211_del_sta(vif->ndev, bssid, GFP_KERNEL); |
|
} |
|
|
|
if (memcmp(vif->ndev->dev_addr, bssid, ETH_ALEN) == 0) { |
|
memset(vif->wep_key_list, 0, sizeof(vif->wep_key_list)); |
|
clear_bit(CONNECTED, &vif->flags); |
|
} |
|
return; |
|
} |
|
|
|
ath6kl_cfg80211_disconnect_event(vif, reason, bssid, |
|
assoc_resp_len, assoc_info, |
|
prot_reason_status); |
|
|
|
aggr_reset_state(vif->aggr_cntxt->aggr_conn); |
|
|
|
del_timer(&vif->disconnect_timer); |
|
|
|
ath6kl_dbg(ATH6KL_DBG_WLAN_CFG, "disconnect reason is %d\n", reason); |
|
|
|
/* |
|
* If the event is due to disconnect cmd from the host, only they |
|
* the target would stop trying to connect. Under any other |
|
* condition, target would keep trying to connect. |
|
*/ |
|
if (reason == DISCONNECT_CMD) { |
|
if (!ar->usr_bss_filter && test_bit(WMI_READY, &ar->flag)) |
|
ath6kl_wmi_bssfilter_cmd(ar->wmi, vif->fw_vif_idx, |
|
NONE_BSS_FILTER, 0); |
|
} else { |
|
set_bit(CONNECT_PEND, &vif->flags); |
|
if (((reason == ASSOC_FAILED) && |
|
(prot_reason_status == 0x11)) || |
|
((reason == ASSOC_FAILED) && (prot_reason_status == 0x0) && |
|
(vif->reconnect_flag == 1))) { |
|
set_bit(CONNECTED, &vif->flags); |
|
return; |
|
} |
|
} |
|
|
|
/* restart disconnected concurrent vifs waiting for new channel */ |
|
ath6kl_check_ch_switch(ar, ar->last_ch); |
|
|
|
/* update connect & link status atomically */ |
|
spin_lock_bh(&vif->if_lock); |
|
clear_bit(CONNECTED, &vif->flags); |
|
netif_carrier_off(vif->ndev); |
|
spin_unlock_bh(&vif->if_lock); |
|
|
|
if ((reason != CSERV_DISCONNECT) || (vif->reconnect_flag != 1)) |
|
vif->reconnect_flag = 0; |
|
|
|
if (reason != CSERV_DISCONNECT) |
|
ar->user_key_ctrl = 0; |
|
|
|
netif_stop_queue(vif->ndev); |
|
memset(vif->bssid, 0, sizeof(vif->bssid)); |
|
vif->bss_ch = 0; |
|
|
|
ath6kl_tx_data_cleanup(ar); |
|
} |
|
|
|
struct ath6kl_vif *ath6kl_vif_first(struct ath6kl *ar) |
|
{ |
|
struct ath6kl_vif *vif; |
|
|
|
spin_lock_bh(&ar->list_lock); |
|
if (list_empty(&ar->vif_list)) { |
|
spin_unlock_bh(&ar->list_lock); |
|
return NULL; |
|
} |
|
|
|
vif = list_first_entry(&ar->vif_list, struct ath6kl_vif, list); |
|
|
|
spin_unlock_bh(&ar->list_lock); |
|
|
|
return vif; |
|
} |
|
|
|
static int ath6kl_open(struct net_device *dev) |
|
{ |
|
struct ath6kl_vif *vif = netdev_priv(dev); |
|
|
|
set_bit(WLAN_ENABLED, &vif->flags); |
|
|
|
if (test_bit(CONNECTED, &vif->flags)) { |
|
netif_carrier_on(dev); |
|
netif_wake_queue(dev); |
|
} else { |
|
netif_carrier_off(dev); |
|
} |
|
|
|
return 0; |
|
} |
|
|
|
static int ath6kl_close(struct net_device *dev) |
|
{ |
|
struct ath6kl_vif *vif = netdev_priv(dev); |
|
|
|
netif_stop_queue(dev); |
|
|
|
ath6kl_cfg80211_stop(vif); |
|
|
|
clear_bit(WLAN_ENABLED, &vif->flags); |
|
|
|
return 0; |
|
} |
|
|
|
static int ath6kl_set_features(struct net_device *dev, |
|
netdev_features_t features) |
|
{ |
|
struct ath6kl_vif *vif = netdev_priv(dev); |
|
struct ath6kl *ar = vif->ar; |
|
int err = 0; |
|
|
|
if ((features & NETIF_F_RXCSUM) && |
|
(ar->rx_meta_ver != WMI_META_VERSION_2)) { |
|
ar->rx_meta_ver = WMI_META_VERSION_2; |
|
err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, |
|
vif->fw_vif_idx, |
|
ar->rx_meta_ver, 0, 0); |
|
if (err) { |
|
dev->features = features & ~NETIF_F_RXCSUM; |
|
return err; |
|
} |
|
} else if (!(features & NETIF_F_RXCSUM) && |
|
(ar->rx_meta_ver == WMI_META_VERSION_2)) { |
|
ar->rx_meta_ver = 0; |
|
err = ath6kl_wmi_set_rx_frame_format_cmd(ar->wmi, |
|
vif->fw_vif_idx, |
|
ar->rx_meta_ver, 0, 0); |
|
if (err) { |
|
dev->features = features | NETIF_F_RXCSUM; |
|
return err; |
|
} |
|
} |
|
|
|
return err; |
|
} |
|
|
|
static void ath6kl_set_multicast_list(struct net_device *ndev) |
|
{ |
|
struct ath6kl_vif *vif = netdev_priv(ndev); |
|
bool mc_all_on = false; |
|
int mc_count = netdev_mc_count(ndev); |
|
struct netdev_hw_addr *ha; |
|
bool found; |
|
struct ath6kl_mc_filter *mc_filter, *tmp; |
|
struct list_head mc_filter_new; |
|
int ret; |
|
|
|
if (!test_bit(WMI_READY, &vif->ar->flag) || |
|
!test_bit(WLAN_ENABLED, &vif->flags)) |
|
return; |
|
|
|
/* Enable multicast-all filter. */ |
|
mc_all_on = !!(ndev->flags & IFF_PROMISC) || |
|
!!(ndev->flags & IFF_ALLMULTI) || |
|
!!(mc_count > ATH6K_MAX_MC_FILTERS_PER_LIST); |
|
|
|
if (mc_all_on) |
|
set_bit(NETDEV_MCAST_ALL_ON, &vif->flags); |
|
else |
|
clear_bit(NETDEV_MCAST_ALL_ON, &vif->flags); |
|
|
|
if (test_bit(ATH6KL_FW_CAPABILITY_WOW_MULTICAST_FILTER, |
|
vif->ar->fw_capabilities)) { |
|
mc_all_on = mc_all_on || (vif->ar->state == ATH6KL_STATE_ON); |
|
} |
|
|
|
if (!(ndev->flags & IFF_MULTICAST)) { |
|
mc_all_on = false; |
|
set_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); |
|
} else { |
|
clear_bit(NETDEV_MCAST_ALL_OFF, &vif->flags); |
|
} |
|
|
|
/* Enable/disable "multicast-all" filter*/ |
|
ath6kl_dbg(ATH6KL_DBG_TRC, "%s multicast-all filter\n", |
|
mc_all_on ? "enabling" : "disabling"); |
|
|
|
ret = ath6kl_wmi_mcast_filter_cmd(vif->ar->wmi, vif->fw_vif_idx, |
|
mc_all_on); |
|
if (ret) { |
|
ath6kl_warn("Failed to %s multicast-all receive\n", |
|
mc_all_on ? "enable" : "disable"); |
|
return; |
|
} |
|
|
|
if (test_bit(NETDEV_MCAST_ALL_ON, &vif->flags)) |
|
return; |
|
|
|
/* Keep the driver and firmware mcast list in sync. */ |
|
list_for_each_entry_safe(mc_filter, tmp, &vif->mc_filter, list) { |
|
found = false; |
|
netdev_for_each_mc_addr(ha, ndev) { |
|
if (memcmp(ha->addr, mc_filter->hw_addr, |
|
ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
|
found = true; |
|
break; |
|
} |
|
} |
|
|
|
if (!found) { |
|
/* |
|
* Delete the filter which was previously set |
|
* but not in the new request. |
|
*/ |
|
ath6kl_dbg(ATH6KL_DBG_TRC, |
|
"Removing %pM from multicast filter\n", |
|
mc_filter->hw_addr); |
|
ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, |
|
vif->fw_vif_idx, mc_filter->hw_addr, |
|
false); |
|
if (ret) { |
|
ath6kl_warn("Failed to remove multicast filter:%pM\n", |
|
mc_filter->hw_addr); |
|
return; |
|
} |
|
|
|
list_del(&mc_filter->list); |
|
kfree(mc_filter); |
|
} |
|
} |
|
|
|
INIT_LIST_HEAD(&mc_filter_new); |
|
|
|
netdev_for_each_mc_addr(ha, ndev) { |
|
found = false; |
|
list_for_each_entry(mc_filter, &vif->mc_filter, list) { |
|
if (memcmp(ha->addr, mc_filter->hw_addr, |
|
ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE) == 0) { |
|
found = true; |
|
break; |
|
} |
|
} |
|
|
|
if (!found) { |
|
mc_filter = kzalloc(sizeof(struct ath6kl_mc_filter), |
|
GFP_ATOMIC); |
|
if (!mc_filter) { |
|
WARN_ON(1); |
|
goto out; |
|
} |
|
|
|
memcpy(mc_filter->hw_addr, ha->addr, |
|
ATH6KL_MCAST_FILTER_MAC_ADDR_SIZE); |
|
/* Set the multicast filter */ |
|
ath6kl_dbg(ATH6KL_DBG_TRC, |
|
"Adding %pM to multicast filter list\n", |
|
mc_filter->hw_addr); |
|
ret = ath6kl_wmi_add_del_mcast_filter_cmd(vif->ar->wmi, |
|
vif->fw_vif_idx, mc_filter->hw_addr, |
|
true); |
|
if (ret) { |
|
ath6kl_warn("Failed to add multicast filter :%pM\n", |
|
mc_filter->hw_addr); |
|
kfree(mc_filter); |
|
goto out; |
|
} |
|
|
|
list_add_tail(&mc_filter->list, &mc_filter_new); |
|
} |
|
} |
|
|
|
out: |
|
list_splice_tail(&mc_filter_new, &vif->mc_filter); |
|
} |
|
|
|
static const struct net_device_ops ath6kl_netdev_ops = { |
|
.ndo_open = ath6kl_open, |
|
.ndo_stop = ath6kl_close, |
|
.ndo_start_xmit = ath6kl_data_tx, |
|
.ndo_set_features = ath6kl_set_features, |
|
.ndo_set_rx_mode = ath6kl_set_multicast_list, |
|
}; |
|
|
|
void init_netdev(struct net_device *dev) |
|
{ |
|
struct ath6kl *ar = ath6kl_priv(dev); |
|
|
|
dev->netdev_ops = &ath6kl_netdev_ops; |
|
dev->needs_free_netdev = true; |
|
dev->watchdog_timeo = ATH6KL_TX_TIMEOUT; |
|
|
|
dev->needed_headroom = ETH_HLEN; |
|
dev->needed_headroom += roundup(sizeof(struct ath6kl_llc_snap_hdr) + |
|
sizeof(struct wmi_data_hdr) + |
|
HTC_HDR_LENGTH + |
|
WMI_MAX_TX_META_SZ + |
|
ATH6KL_HTC_ALIGN_BYTES, 4); |
|
|
|
if (!test_bit(ATH6KL_FW_CAPABILITY_NO_IP_CHECKSUM, |
|
ar->fw_capabilities)) |
|
dev->hw_features |= NETIF_F_IP_CSUM | NETIF_F_RXCSUM; |
|
|
|
return; |
|
}
|
|
|