* [RFC V3 1/2] nl80211: add feature for BSS selection support
2016-01-26 10:01 [RFC V3 0/2] nl80211: allow configuration of BSS selection Arend van Spriel
@ 2016-01-26 10:01 ` Arend van Spriel
2016-01-26 10:01 ` [RFC V3 2/2] brcmfmac: add support for nl80211 BSS_SELECT feature Arend van Spriel
2016-01-26 12:45 ` [RFC V3 0/2] nl80211: allow configuration of BSS selection Arend van Spriel
2 siblings, 0 replies; 4+ messages in thread
From: Arend van Spriel @ 2016-01-26 10:01 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel
Introducing a new feature that the driver can use to
indicate the driver/firmware supports configuration of BSS
selection criteria upon CONNECT command. This can be useful
when multiple BSS-es are found belonging to the same ESS,
ie. Infra-BSS with same SSID. The criteria can then be used to
offload selection of a preferred BSS.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Lei Zhang <leizh@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
---
include/net/cfg80211.h | 34 ++++++++++++++++++++
include/uapi/linux/nl80211.h | 42 ++++++++++++++++++++++++
net/wireless/core.c | 4 +++
net/wireless/nl80211.c | 76 ++++++++++++++++++++++++++++++++++++++++++++
4 files changed, 156 insertions(+)
diff --git a/include/net/cfg80211.h b/include/net/cfg80211.h
index 9bcaaf7..b4c1bf4 100644
--- a/include/net/cfg80211.h
+++ b/include/net/cfg80211.h
@@ -1854,6 +1854,33 @@ struct cfg80211_ibss_params {
};
/**
+ * struct cfg80211_bss_select_adjust - BSS selection with RSSI adjustment.
+ *
+ * @band: band of BSS which should match for RSSI level adjustment.
+ * @delta: value of RSSI level adjustment.
+ */
+struct cfg80211_bss_select_adjust {
+ enum nl80211_band band;
+ s8 delta;
+};
+
+/**
+ * struct cfg80211_bss_selection - connection parameters for BSS selection.
+ *
+ * @behaviour: requested BSS selection behaviour.
+ * @param: parameters for given primitive.
+ * @band_pref: preferred band for %BSS_SELECT_BAND_PREF primitive.
+ * @adjust: parameters for %BSS_SELECT_ADJUST_RSSI primitive.
+ */
+struct cfg80211_bss_selection {
+ enum nl80211_bss_select_attr behaviour;
+ union {
+ enum nl80211_band band_pref;
+ struct cfg80211_bss_select_adjust adjust;
+ } param;
+};
+
+/**
* struct cfg80211_connect_params - Connection parameters
*
* This structure provides information needed to complete IEEE 802.11
@@ -1888,6 +1915,7 @@ struct cfg80211_ibss_params {
* @ht_capa_mask: The bits of ht_capa which are to be used.
* @vht_capa: VHT Capability overrides
* @vht_capa_mask: The bits of vht_capa which are to be used.
+ * @bss_select: criteria to be used for BSS selection.
*/
struct cfg80211_connect_params {
struct ieee80211_channel *channel;
@@ -1910,6 +1938,7 @@ struct cfg80211_connect_params {
struct ieee80211_ht_cap ht_capa_mask;
struct ieee80211_vht_cap vht_capa;
struct ieee80211_vht_cap vht_capa_mask;
+ struct cfg80211_bss_selection bss_select;
};
/**
@@ -3178,6 +3207,9 @@ struct wiphy_vendor_command {
* low rssi when a frame is heard on different channel, then it should set
* this variable to the maximal offset for which it can compensate.
* This value should be set in MHz.
+ * @bss_select_support: bitmask indicating the BSS selection criteria supported
+ * by the driver in the .connect() callback. The bit position maps to the
+ * criteria defined in &enum nl80211_bss_select_primitive.
*/
struct wiphy {
/* assign these fields before you register the wiphy */
@@ -3300,6 +3332,8 @@ struct wiphy {
u8 max_num_csa_counters;
u8 max_adj_channel_rssi_comp;
+ u32 bss_select_support;
+
char priv[0] __aligned(NETDEV_ALIGN);
};
diff --git a/include/uapi/linux/nl80211.h b/include/uapi/linux/nl80211.h
index 5b7b5eb..e9f5ae7 100644
--- a/include/uapi/linux/nl80211.h
+++ b/include/uapi/linux/nl80211.h
@@ -1789,6 +1789,12 @@ enum nl80211_commands {
* thus it must not specify the number of iterations, only the interval
* between scans. The scan plans are executed sequentially.
* Each scan plan is a nested attribute of &enum nl80211_sched_scan_plan.
+ * @NL80211_ATTR_BSS_SELECT: nested attribute for driver supporting the
+ * extended feature %NL80211_EXT_FEATURE_BSS_SELECT. When used with
+ * %NL80211_CMD_GET_WIPHY is contains NLA_FLAG type according
+ * &enum nl80211_bss_select_attr to indicate what primitives are
+ * supported. When used with %NL80211_CMD_CONNECT is contains the behaviour
+ * and parameters for BSS selection to be done by driver and/or firmware.
*
* @NUM_NL80211_ATTR: total number of nl80211_attrs available
* @NL80211_ATTR_MAX: highest attribute number currently defined
@@ -2164,6 +2170,8 @@ enum nl80211_attrs {
NL80211_ATTR_MAX_SCAN_PLAN_ITERATIONS,
NL80211_ATTR_SCHED_SCAN_PLANS,
+ NL80211_ATTR_BSS_SELECT,
+
/* add attributes here, update the policy in nl80211.c */
__NL80211_ATTR_AFTER_LAST,
@@ -4651,4 +4659,38 @@ enum nl80211_sched_scan_plan {
__NL80211_SCHED_SCAN_PLAN_AFTER_LAST - 1
};
+/**
+ * enum nl80211_bss_select_attr - attributes for bss selection.
+ *
+ * @__NL80211_BSS_SELECT_ATTR_INVALID: reserved.
+ * @NL80211_BSS_SELECT_ATTR_RSSI: Flag indicating only RSSI-based BSS selection
+ * is requested.
+ * @NL80211_BSS_SELECT_ATTR_BAND_PREF: attribute indicating BSS
+ * selection should be done such that the specified band is preferred.
+ * When there are multiple BSS-es in the preferred band, the driver
+ * shall use RSSI-based BSS selection. The value of this attribute
+ * is according to &enum nl80211_band (u32).
+ * @NL80211_BSS_SELECT_ATTR_RSSI_ADJUST: When present the RSSI level for
+ * BSS-es in the specified band is to be adjusted before doing
+ * RSSI-based BSS selection. The attribute value is a packed two-byte
+ * value. The lower byte contains the adjustment value (s8) and the
+ * high byte contains the band according &enum nl80211_band.
+ * @NL80211_BSS_SELECT_ATTR_MAX: highest bss select attribute number.
+ *@__NL80211_BSS_SELECT_ATTR_AFTER_LAST: internal use.
+ *
+ * These attributes are found within %NL80211_ATTR_BSS_SELECT and
+ * indicate the required BSS selection behaviour which the driver
+ * should use.
+ */
+enum nl80211_bss_select_attr {
+ __NL80211_BSS_SELECT_ATTR_INVALID,
+ NL80211_BSS_SELECT_ATTR_RSSI,
+ NL80211_BSS_SELECT_ATTR_BAND_PREF,
+ NL80211_BSS_SELECT_ATTR_RSSI_ADJUST,
+
+ /* keep last */
+ __NL80211_BSS_SELECT_ATTR_AFTER_LAST,
+ NL80211_BSS_SELECT_ATTR_MAX = __NL80211_BSS_SELECT_ATTR_AFTER_LAST - 1
+};
+
#endif /* __LINUX_NL80211_H */
diff --git a/net/wireless/core.c b/net/wireless/core.c
index 3a9c41b..f6b2976 100644
--- a/net/wireless/core.c
+++ b/net/wireless/core.c
@@ -626,6 +626,10 @@ int wiphy_register(struct wiphy *wiphy)
!rdev->ops->set_mac_acl)))
return -EINVAL;
+ if (WARN_ON(wiphy->bss_select_support &&
+ (wiphy->bss_select_support & ~(BIT(NL80211_BSS_SELECT_ATTR_MAX) - 1))))
+ return -EINVAL;
+
if (wiphy->addresses)
memcpy(wiphy->perm_addr, wiphy->addresses[0].addr, ETH_ALEN);
diff --git a/net/wireless/nl80211.c b/net/wireless/nl80211.c
index d4786f2..e17044d 100644
--- a/net/wireless/nl80211.c
+++ b/net/wireless/nl80211.c
@@ -485,6 +485,13 @@ nl80211_plan_policy[NL80211_SCHED_SCAN_PLAN_MAX + 1] = {
[NL80211_SCHED_SCAN_PLAN_ITERATIONS] = { .type = NLA_U32 },
};
+static const struct nla_policy
+nl80211_bss_select_policy[NL80211_BSS_SELECT_ATTR_MAX + 1] = {
+ [NL80211_BSS_SELECT_ATTR_RSSI] = { .type = NLA_FLAG },
+ [NL80211_BSS_SELECT_ATTR_BAND_PREF] = { .type = NLA_U32 },
+ [NL80211_BSS_SELECT_ATTR_RSSI_ADJUST] = { .type = NLA_U8 },
+};
+
static int nl80211_prepare_wdev_dump(struct sk_buff *skb,
struct netlink_callback *cb,
struct cfg80211_registered_device **rdev,
@@ -1730,6 +1737,24 @@ static int nl80211_send_wiphy(struct cfg80211_registered_device *rdev,
rdev->wiphy.ext_features))
goto nla_put_failure;
+ if (rdev->wiphy.bss_select_support) {
+ struct nlattr *nested;
+ u32 bss_select_support = rdev->wiphy.bss_select_support;
+
+ nested = nla_nest_start(msg, NL80211_ATTR_BSS_SELECT);
+ if (!nested)
+ goto nla_put_failure;
+
+ i = 0;
+ while (bss_select_support) {
+ if ((bss_select_support & 1) &&
+ nla_put_flag(msg, i))
+ goto nla_put_failure;
+ i++;
+ bss_select_support >>= 1;
+ }
+ nla_nest_end(msg, nested);
+ }
/* done */
state->split_start = 0;
break;
@@ -5753,6 +5778,42 @@ static int validate_scan_freqs(struct nlattr *freqs)
return n_channels;
}
+static int parse_bss_select(struct nlattr *nla,
+ struct cfg80211_bss_selection *bss_select)
+{
+ struct nlattr *attr[NL80211_BSS_SELECT_ATTR_MAX + 1];
+ u16 band_delta;
+ int err;
+
+ err = nla_parse(attr, NL80211_BSS_SELECT_ATTR_MAX,
+ nla_data(nla), nla_len(nla), nl80211_bss_select_policy);
+ if (err)
+ return err;
+
+ bss_select->behaviour = __NL80211_BSS_SELECT_ATTR_INVALID;
+
+ if (attr[NL80211_BSS_SELECT_ATTR_RSSI])
+ bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI;
+
+ if (attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]) {
+ bss_select->behaviour = NL80211_BSS_SELECT_ATTR_BAND_PREF;
+ bss_select->param.band_pref =
+ nla_get_u32(attr[NL80211_BSS_SELECT_ATTR_BAND_PREF]);
+ }
+ if (attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]) {
+ bss_select->behaviour = NL80211_BSS_SELECT_ATTR_RSSI_ADJUST;
+ band_delta =
+ nla_get_u16(attr[NL80211_BSS_SELECT_ATTR_RSSI_ADJUST]);
+ bss_select->param.adjust.delta = (s8)(band_delta & 0xFF);
+ bss_select->param.adjust.band = band_delta >> 8;
+ }
+
+ if (bss_select->behaviour == __NL80211_BSS_SELECT_ATTR_INVALID)
+ return -EINVAL;
+
+ return 0;
+}
+
static int nl80211_parse_random_mac(struct nlattr **attrs,
u8 *mac_addr, u8 *mac_addr_mask)
{
@@ -7980,6 +8041,21 @@ static int nl80211_connect(struct sk_buff *skb, struct genl_info *info)
connect.flags |= ASSOC_REQ_USE_RRM;
}
+ /* only do bss selection when no BSSID is specified. */
+ if (!connect.bssid && rdev->wiphy.bss_select_support &&
+ info->attrs[NL80211_ATTR_BSS_SELECT]) {
+ err = parse_bss_select(info->attrs[NL80211_ATTR_BSS_SELECT],
+ &connect.bss_select);
+ if (err) {
+ kzfree(connkeys);
+ return err;
+ }
+ if (!(rdev->wiphy.bss_select_support & BIT(connect.bss_select.behaviour))) {
+ kzfree(connkeys);
+ return -EINVAL;
+ }
+ }
+
wdev_lock(dev->ieee80211_ptr);
err = cfg80211_connect(rdev, dev, &connect, connkeys, NULL);
wdev_unlock(dev->ieee80211_ptr);
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* [RFC V3 2/2] brcmfmac: add support for nl80211 BSS_SELECT feature
2016-01-26 10:01 [RFC V3 0/2] nl80211: allow configuration of BSS selection Arend van Spriel
2016-01-26 10:01 ` [RFC V3 1/2] nl80211: add feature for BSS selection support Arend van Spriel
@ 2016-01-26 10:01 ` Arend van Spriel
2016-01-26 12:45 ` [RFC V3 0/2] nl80211: allow configuration of BSS selection Arend van Spriel
2 siblings, 0 replies; 4+ messages in thread
From: Arend van Spriel @ 2016-01-26 10:01 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless, Arend van Spriel
Announce support for nl80211 feature BSS_SELECT and process
BSS selection behaviour provided in .connect() callback.
Reviewed-by: Hante Meuleman <meuleman@broadcom.com>
Reviewed-by: Franky (Zhenhui) Lin <frankyl@broadcom.com>
Reviewed-by: Pieter-Paul Giesberts <pieterpg@broadcom.com>
Reviewed-by: Lei Zhang <leizh@broadcom.com>
Signed-off-by: Arend van Spriel <arend@broadcom.com>
---
.../broadcom/brcm80211/brcmfmac/cfg80211.c | 63 ++++++++++++++++++++--
.../wireless/broadcom/brcm80211/brcmfmac/common.c | 38 +++++++------
.../wireless/broadcom/brcm80211/brcmfmac/core.h | 1 +
3 files changed, 84 insertions(+), 18 deletions(-)
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
index 7b01e4d..d90378e 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/cfg80211.c
@@ -238,6 +238,20 @@ struct parsed_vndr_ies {
struct parsed_vndr_ie_info ie_info[VNDR_IE_PARSE_LIMIT];
};
+static u8 nl80211_band_to_fwil(enum nl80211_band band)
+{
+ switch (band) {
+ case NL80211_BAND_2GHZ:
+ return WLC_BAND_2G;
+ case NL80211_BAND_5GHZ:
+ return WLC_BAND_5G;
+ default:
+ WARN_ON(1);
+ break;
+ }
+ return 0;
+}
+
static u16 chandef_to_chanspec(struct brcmu_d11inf *d11inf,
struct cfg80211_chan_def *ch)
{
@@ -1737,6 +1751,43 @@ enum nl80211_auth_type brcmf_war_auth_type(struct brcmf_if *ifp,
return type;
}
+static void brcmf_set_join_pref(struct brcmf_if *ifp,
+ struct cfg80211_bss_selection *bss_select)
+{
+ struct brcmf_join_pref_params join_pref_params[2];
+ enum nl80211_band band;
+ int err, i = 0;
+
+ join_pref_params[i].len = 2;
+ join_pref_params[i].rssi_gain = 0;
+ switch (bss_select->behaviour) {
+ case NL80211_BSS_SELECT_ATTR_BAND_PREF:
+ join_pref_params[i].type = BRCMF_JOIN_PREF_BAND;
+ band = bss_select->param.band_pref;
+ join_pref_params[i].band = nl80211_band_to_fwil(band);
+ i++;
+ break;
+ case NL80211_BSS_SELECT_ATTR_RSSI_ADJUST:
+ join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI_DELTA;
+ band = bss_select->param.adjust.band;
+ join_pref_params[i].band = nl80211_band_to_fwil(band);
+ join_pref_params[i].rssi_gain = bss_select->param.adjust.delta;
+ i++;
+ break;
+ case NL80211_BSS_SELECT_ATTR_RSSI:
+ default:
+ break;
+ }
+ join_pref_params[i].type = BRCMF_JOIN_PREF_RSSI;
+ join_pref_params[i].len = 2;
+ join_pref_params[i].rssi_gain = 0;
+ join_pref_params[i].band = 0;
+ err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
+ sizeof(join_pref_params));
+ if (err)
+ brcmf_err("Set join_pref error (%d)\n", err);
+}
+
static s32
brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
struct cfg80211_connect_params *sme)
@@ -1862,11 +1913,13 @@ brcmf_cfg80211_connect(struct wiphy *wiphy, struct net_device *ndev,
ext_join_params->scan_le.scan_type = -1;
ext_join_params->scan_le.home_time = cpu_to_le32(-1);
- if (sme->bssid)
+ if (sme->bssid) {
memcpy(&ext_join_params->assoc_le.bssid, sme->bssid, ETH_ALEN);
- else
+ brcmf_c_set_joinpref_default(ifp);
+ } else {
eth_broadcast_addr(ext_join_params->assoc_le.bssid);
-
+ brcmf_set_join_pref(ifp, &sme->bss_select);
+ }
if (cfg->channel) {
ext_join_params->assoc_le.chanspec_num = cpu_to_le32(1);
@@ -6179,6 +6232,10 @@ static int brcmf_setup_wiphy(struct wiphy *wiphy, struct brcmf_if *ifp)
wiphy->signal_type = CFG80211_SIGNAL_TYPE_MBM;
wiphy->cipher_suites = __wl_cipher_suites;
wiphy->n_cipher_suites = ARRAY_SIZE(__wl_cipher_suites);
+ wiphy->bss_select_support = BIT(NL80211_BSS_SELECT_ATTR_RSSI) |
+ BIT(NL80211_BSS_SELECT_ATTR_BAND_PREF) |
+ BIT(NL80211_BSS_SELECT_ATTR_RSSI_ADJUST);
+
wiphy->flags |= WIPHY_FLAG_PS_ON_BY_DEFAULT |
WIPHY_FLAG_OFFCHAN_TX |
WIPHY_FLAG_HAS_REMAIN_ON_CHANNEL;
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
index 4265b50..b9e81fb 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/common.c
@@ -32,7 +32,7 @@ const u8 ALLFFMAC[ETH_ALEN] = { 0xff, 0xff, 0xff, 0xff, 0xff, 0xff };
#define BRCMF_DEFAULT_SCAN_CHANNEL_TIME 40
#define BRCMF_DEFAULT_SCAN_UNASSOC_TIME 40
-/* boost value for RSSI_DELTA in preferred join selection */
+/* default boost value for RSSI_DELTA in preferred join selection */
#define BRCMF_JOIN_PREF_RSSI_BOOST 8
#define BRCMF_DEFAULT_TXGLOM_SIZE 32 /* max tx frames in glom chain */
@@ -76,11 +76,31 @@ MODULE_PARM_DESC(ignore_probe_fail, "always succeed probe for debugging");
struct brcmf_mp_global_t brcmf_mp_global;
+void brcmf_c_set_joinpref_default(struct brcmf_if *ifp)
+{
+ struct brcmf_join_pref_params join_pref_params[2];
+ int err;
+
+ /* Setup join_pref to select target by RSSI (boost on 5GHz) */
+ join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA;
+ join_pref_params[0].len = 2;
+ join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST;
+ join_pref_params[0].band = WLC_BAND_5G;
+
+ join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI;
+ join_pref_params[1].len = 2;
+ join_pref_params[1].rssi_gain = 0;
+ join_pref_params[1].band = 0;
+ err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
+ sizeof(join_pref_params));
+ if (err)
+ brcmf_err("Set join_pref error (%d)\n", err);
+}
+
int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
{
s8 eventmask[BRCMF_EVENTING_MASK_LEN];
u8 buf[BRCMF_DCMD_SMLEN];
- struct brcmf_join_pref_params join_pref_params[2];
struct brcmf_rev_info_le revinfo;
struct brcmf_rev_info *ri;
char *ptr;
@@ -147,19 +167,7 @@ int brcmf_c_preinit_dcmds(struct brcmf_if *ifp)
goto done;
}
- /* Setup join_pref to select target by RSSI(with boost on 5GHz) */
- join_pref_params[0].type = BRCMF_JOIN_PREF_RSSI_DELTA;
- join_pref_params[0].len = 2;
- join_pref_params[0].rssi_gain = BRCMF_JOIN_PREF_RSSI_BOOST;
- join_pref_params[0].band = WLC_BAND_5G;
- join_pref_params[1].type = BRCMF_JOIN_PREF_RSSI;
- join_pref_params[1].len = 2;
- join_pref_params[1].rssi_gain = 0;
- join_pref_params[1].band = 0;
- err = brcmf_fil_iovar_data_set(ifp, "join_pref", join_pref_params,
- sizeof(join_pref_params));
- if (err)
- brcmf_err("Set join_pref error (%d)\n", err);
+ brcmf_c_set_joinpref_default(ifp);
/* Setup event_msgs, enable E_IF */
err = brcmf_fil_iovar_data_get(ifp, "event_msgs", eventmask,
diff --git a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
index 8f39435..c9a1a13 100644
--- a/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
+++ b/drivers/net/wireless/broadcom/brcm80211/brcmfmac/core.h
@@ -220,5 +220,6 @@ void brcmf_txflowblock_if(struct brcmf_if *ifp,
void brcmf_txfinalize(struct brcmf_if *ifp, struct sk_buff *txp, bool success);
void brcmf_netif_rx(struct brcmf_if *ifp, struct sk_buff *skb);
void brcmf_net_setcarrier(struct brcmf_if *ifp, bool on);
+void brcmf_c_set_joinpref_default(struct brcmf_if *ifp);
#endif /* BRCMFMAC_CORE_H */
--
1.9.1
^ permalink raw reply related [flat|nested] 4+ messages in thread* Re: [RFC V3 0/2] nl80211: allow configuration of BSS selection
2016-01-26 10:01 [RFC V3 0/2] nl80211: allow configuration of BSS selection Arend van Spriel
2016-01-26 10:01 ` [RFC V3 1/2] nl80211: add feature for BSS selection support Arend van Spriel
2016-01-26 10:01 ` [RFC V3 2/2] brcmfmac: add support for nl80211 BSS_SELECT feature Arend van Spriel
@ 2016-01-26 12:45 ` Arend van Spriel
2 siblings, 0 replies; 4+ messages in thread
From: Arend van Spriel @ 2016-01-26 12:45 UTC (permalink / raw)
To: Johannes Berg; +Cc: linux-wireless
On 26-1-2016 11:01, Arend van Spriel wrote:
> This patch series adds support for configuration of BSS selection done by
> the driver and/or firmware. It allows user-space to pass selection criteria
> with the NL80211_CMD_CONNECT using NL80211_ATTR_BSS_SELECT. When user-space
> does provide this attribute and no explicit BSSID is provided it will pass
> the BSS selection criteria to the driver if the driver supports it.
>
> When multiple BSS-es are found belonging to the same ESS, ie. Infra-BSS with
> same SSID, the criteria can be used to select a BSS. The criteria defined are:
>
> 1. RSSI based selection.
> 2. Band selection, RSSI based selection.
> 3. RSSI adjustment in given band, RSSI based selection.
>
> V2:
> - incorporate comments from Johannes Berg (may have missed some).
> - split nl80211 patch in two separate patches.
>
> V3:
> - remove enum nl80211_bss_select_primitive.
> - reword documentation of nl80211_bss_select_attr enum values.
>
> Arend van Spriel (3):
> nl80211: add extended feature for BSS selection support
> nl80211: add bss selection attribute to CONNECT command
> brcmfmac: add support for nl80211 BSS_SELECT feature
Hmmm. Made a bit of a mess with this version. Let's go to V4.
Regards,
Arend
> .../broadcom/brcm80211/brcmfmac/cfg80211.c | 63 +++++++++++++++++-
> .../wireless/broadcom/brcm80211/brcmfmac/common.c | 38 ++++++-----
> .../wireless/broadcom/brcm80211/brcmfmac/core.h | 1 +
> include/net/cfg80211.h | 34 ++++++++++
> include/uapi/linux/nl80211.h | 42 ++++++++++++
> net/wireless/core.c | 4 ++
> net/wireless/nl80211.c | 76 ++++++++++++++++++++++
> 7 files changed, 240 insertions(+), 18 deletions(-)
>
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