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brcmfmac: allow scanning to be suppressed in the driver

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During the DHCP protocol exchange it is benificial to suppress
scan requests which may decrease time to complete DHCP protocol.

Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Arend van Spriel 2013-04-23 12:53:11 +02:00 • committed by John W. Linville
parent 176f0e841e
commit 1687eee235
2 changed files with 13 additions and 1 deletions
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10
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.c
View file

@ -856,6 +856,11 @@ brcmf_cfg80211_escan(struct wiphy *wiphy, struct brcmf_cfg80211_vif *vif,
cfg->scan_status); cfg->scan_status);
return -EAGAIN; return -EAGAIN;
} }
if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
brcmf_err("Scanning suppressed: status (%lu)\n",
cfg->scan_status);
return -EAGAIN;
}
if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) { if (test_bit(BRCMF_VIF_STATUS_CONNECTING, &ifp->vif->sme_state)) {
brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state); brcmf_err("Connecting: status (%lu)\n", ifp->vif->sme_state);
return -EAGAIN; return -EAGAIN;
@ -3017,6 +3022,11 @@ brcmf_cfg80211_sched_scan_start(struct wiphy *wiphy,
brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status); brcmf_err("Scanning already: status (%lu)\n", cfg->scan_status);
return -EAGAIN; return -EAGAIN;
} }
if (test_bit(BRCMF_SCAN_STATUS_SUPPRESS, &cfg->scan_status)) {
brcmf_err("Scanning suppressed: status (%lu)\n",
cfg->scan_status);
return -EAGAIN;
}
if (!request->n_ssids || !request->n_match_sets) { if (!request->n_ssids || !request->n_match_sets) {
brcmf_err("Invalid sched scan req!! n_ssids:%d\n", brcmf_err("Invalid sched scan req!! n_ssids:%d\n",

4
drivers/net/wireless/brcm80211/brcmfmac/wl_cfg80211.h
View file

@ -77,14 +77,16 @@
/** /**
* enum brcmf_scan_status - dongle scan status * enum brcmf_scan_status - scan engine status
* *
* @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle. * @BRCMF_SCAN_STATUS_BUSY: scanning in progress on dongle.
* @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle. * @BRCMF_SCAN_STATUS_ABORT: scan being aborted on dongle.
* @BRCMF_SCAN_STATUS_SUPPRESS: scanning is suppressed in driver.
*/ */
enum brcmf_scan_status { enum brcmf_scan_status {
BRCMF_SCAN_STATUS_BUSY, BRCMF_SCAN_STATUS_BUSY,
BRCMF_SCAN_STATUS_ABORT, BRCMF_SCAN_STATUS_ABORT,
BRCMF_SCAN_STATUS_SUPPRESS,
}; };
/** /**