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qtnfmac: configure and start AP interface with a single command

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Current logic artificially divides "start AP" procedure into three
stages:
- generic interface configuration (security, channel etc)
- IE's processing
- enable AP mode on interface

This separation would not allow to do a proper device configuration as
first stage needs to use information from IEs that are processed on
a second stage. Which means first and second stages have to be meged.
In that case there is no point anymore to keep third stage either, so
merge all three into a single command.

This new command carries all the same info as contained in
"struct cfg80211_ap_settings".

Signed-off-by: Igor Mitsyanko <igor.mitsyanko.os@quantenna.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
This commit is contained in:
Igor Mitsyanko 2017-10-30 18:04:53 -07:00 committed by Kalle Valo
parent 4d1f0fabdc
commit 17011da0b8
4 changed files with 47 additions and 52 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

17
drivers/net/wireless/quantenna/qtnfmac/cfg80211.c
View File

@ -271,26 +271,11 @@ static int qtnf_start_ap(struct wiphy *wiphy, struct net_device *dev,
struct qtnf_vif *vif = qtnf_netdev_get_priv(dev);
int ret;
ret = qtnf_cmd_send_config_ap(vif, settings);
if (ret) {
pr_err("VIF%u.%u: failed to push config to FW\n",
vif->mac->macid, vif->vifid);
goto out;
}
ret = qtnf_mgmt_set_appie(vif, &settings->beacon);
if (ret) {
pr_err("VIF%u.%u: failed to add IEs to beacon\n",
vif->mac->macid, vif->vifid);
goto out;
}
ret = qtnf_cmd_send_start_ap(vif);
ret = qtnf_cmd_send_start_ap(vif, settings);
if (ret)
pr_err("VIF%u.%u: failed to start AP\n", vif->mac->macid,
vif->vifid);
out:
return ret;
}

72
drivers/net/wireless/quantenna/qtnfmac/commands.c
View File

@ -162,56 +162,51 @@ static void qtnf_cmd_tlv_ie_set_add(struct sk_buff *cmd_skb, u8 frame_type,
memcpy(tlv->ie_data, buf, len);
}
int qtnf_cmd_send_start_ap(struct qtnf_vif *vif)
static bool qtnf_cmd_start_ap_can_fit(const struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s)
{
struct sk_buff *cmd_skb;
u16 res_code = QLINK_CMD_RESULT_OK;
int ret;
unsigned int len = sizeof(struct qlink_cmd_start_ap);
cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
QLINK_CMD_START_AP,
sizeof(struct qlink_cmd));
if (unlikely(!cmd_skb))
return -ENOMEM;
len += s->ssid_len;
len += s->beacon.head_len;
len += s->beacon.tail_len;
len += s->beacon.beacon_ies_len;
len += s->beacon.proberesp_ies_len;
len += s->beacon.assocresp_ies_len;
len += s->beacon.probe_resp_len;
qtnf_bus_lock(vif->mac->bus);
if (cfg80211_chandef_valid(&s->chandef))
len += sizeof(struct qlink_tlv_chandef);
ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
if (unlikely(ret))
goto out;
if (unlikely(res_code != QLINK_CMD_RESULT_OK)) {
pr_err("VIF%u.%u: CMD failed: %u\n", vif->mac->macid,
vif->vifid, res_code);
ret = -EFAULT;
goto out;
if (len > (sizeof(struct qlink_cmd) + QTNF_MAX_CMD_BUF_SIZE)) {
pr_err("VIF%u.%u: can not fit AP settings: %u\n",
vif->mac->macid, vif->vifid, len);
return false;
}
netif_carrier_on(vif->netdev);
out:
qtnf_bus_unlock(vif->mac->bus);
return ret;
return true;
}
int qtnf_cmd_send_config_ap(struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s)
int qtnf_cmd_send_start_ap(struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s)
{
struct sk_buff *cmd_skb;
struct qlink_cmd_config_ap *cmd;
struct qlink_cmd_start_ap *cmd;
struct qlink_auth_encr *aen;
u16 res_code = QLINK_CMD_RESULT_OK;
int ret;
int i;
if (!qtnf_cmd_start_ap_can_fit(vif, s))
return -E2BIG;
cmd_skb = qtnf_cmd_alloc_new_cmdskb(vif->mac->macid, vif->vifid,
QLINK_CMD_CONFIG_AP,
QLINK_CMD_START_AP,
sizeof(*cmd));
if (unlikely(!cmd_skb))
return -ENOMEM;
cmd = (struct qlink_cmd_config_ap *)cmd_skb->data;
cmd = (struct qlink_cmd_start_ap *)cmd_skb->data;
cmd->dtim_period = s->dtim_period;
cmd->beacon_interval = cpu_to_le16(s->beacon_interval);
cmd->hidden_ssid = qlink_hidden_ssid_nl2q(s->hidden_ssid);
@ -256,6 +251,21 @@ int qtnf_cmd_send_config_ap(struct qtnf_vif *vif,
qlink_chandef_cfg2q(&s->chandef, &chtlv->chan);
}
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_HEAD,
s->beacon.head, s->beacon.head_len);
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_TAIL,
s->beacon.tail, s->beacon.tail_len);
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_BEACON_IES,
s->beacon.beacon_ies, s->beacon.beacon_ies_len);
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP,
s->beacon.probe_resp, s->beacon.probe_resp_len);
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_PROBE_RESP_IES,
s->beacon.proberesp_ies,
s->beacon.proberesp_ies_len);
qtnf_cmd_tlv_ie_set_add(cmd_skb, QLINK_IE_SET_ASSOC_RESP,
s->beacon.assocresp_ies,
s->beacon.assocresp_ies_len);
qtnf_bus_lock(vif->mac->bus);
ret = qtnf_cmd_send(vif->mac->bus, cmd_skb, &res_code);
@ -270,6 +280,8 @@ int qtnf_cmd_send_config_ap(struct qtnf_vif *vif,
goto out;
}
netif_carrier_on(vif->netdev);
out:
qtnf_bus_unlock(vif->mac->bus);
return ret;

5
drivers/net/wireless/quantenna/qtnfmac/commands.h
View File

@ -33,9 +33,8 @@ int qtnf_cmd_send_del_intf(struct qtnf_vif *vif);
int qtnf_cmd_band_info_get(struct qtnf_wmac *mac,
struct ieee80211_supported_band *band);
int qtnf_cmd_send_regulatory_config(struct qtnf_wmac *mac, const char *alpha2);
int qtnf_cmd_send_config_ap(struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s);
int qtnf_cmd_send_start_ap(struct qtnf_vif *vif);
int qtnf_cmd_send_start_ap(struct qtnf_vif *vif,
const struct cfg80211_ap_settings *s);
int qtnf_cmd_send_stop_ap(struct qtnf_vif *vif);
int qtnf_cmd_send_register_mgmt(struct qtnf_vif *vif, u16 frame_type, bool reg);
int qtnf_cmd_send_mgmt_frame(struct qtnf_vif *vif, u32 cookie, u16 flags,

5
drivers/net/wireless/quantenna/qtnfmac/qlink.h
View File

@ -192,7 +192,6 @@ enum qlink_cmd_type {
QLINK_CMD_BAND_INFO_GET = 0x001A,
QLINK_CMD_CHAN_SWITCH = 0x001B,
QLINK_CMD_CHAN_GET = 0x001C,
QLINK_CMD_CONFIG_AP = 0x0020,
QLINK_CMD_START_AP = 0x0021,
QLINK_CMD_STOP_AP = 0x0022,
QLINK_CMD_GET_STA_INFO = 0x0030,
@ -542,7 +541,7 @@ enum qlink_hidden_ssid {
};
/**
* struct qlink_cmd_config_ap - data for QLINK_CMD_CONFIG_AP command
* struct qlink_cmd_start_ap - data for QLINK_CMD_START_AP command
*
* @beacon_interval: beacon interval
* @inactivity_timeout: station's inactivity period in seconds
@ -554,7 +553,7 @@ enum qlink_hidden_ssid {
* @aen: encryption info
* @info: variable configurations
*/
struct qlink_cmd_config_ap {
struct qlink_cmd_start_ap {
struct qlink_cmd chdr;
__le16 beacon_interval;
__le16 inactivity_timeout;