* [PATCH 1/2] ath10k: fix beamformee VHT STS capability
@ 2015-09-02 11:20 ` Bartosz Markowski
0 siblings, 0 replies; 6+ messages in thread
From: Bartosz Markowski @ 2015-09-02 11:20 UTC (permalink / raw
To: ath10k; +Cc: linux-wireless, Bartosz Markowski
The VHT STS CAP shall be reported by firmware to host, like in case of
QCA99x0. For QCA6174 hw family this isn't set for some reason.
So for this particular chips, let's assume it has the ability to
support VHT NDP in up to 4 STSs (which is true by the way).
Change the published beamformee STS cap accordingly to 3 or to what
the firmware reports.
Assumption so far, it suppose to be the num_rf_chains-1, was
completely wrong.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9bca37820848..25c20d18021a 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4064,17 +4064,35 @@ static u32 get_nss_from_chainmask(u16 chain_mask)
return 1;
}
+static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
+{
+ int nsts = ar->vht_cap_info;
+ nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
+ nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
+
+ /* If firmware does not deliver to host number of space-time
+ * streams supported, assume it support up to 4 BF STS and return
+ * the value for VHT CAP: nsts-1)
+ * */
+ if (nsts == 0)
+ return 3;
+
+ return nsts;
+}
+
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
+ int nsts;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
+ nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
- value |= SM((ar->num_rf_chains - 1), WMI_TXBF_STS_CAP_OFFSET);
+ value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
@@ -6803,7 +6821,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
- val = ar->num_rf_chains - 1;
+ val = ath10k_mac_get_vht_cap_bf_sts(ar);
val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
--
2.1.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 1/2] ath10k: fix beamformee VHT STS capability
@ 2015-09-02 11:20 ` Bartosz Markowski
0 siblings, 0 replies; 6+ messages in thread
From: Bartosz Markowski @ 2015-09-02 11:20 UTC (permalink / raw
To: ath10k; +Cc: linux-wireless, Bartosz Markowski
The VHT STS CAP shall be reported by firmware to host, like in case of
QCA99x0. For QCA6174 hw family this isn't set for some reason.
So for this particular chips, let's assume it has the ability to
support VHT NDP in up to 4 STSs (which is true by the way).
Change the published beamformee STS cap accordingly to 3 or to what
the firmware reports.
Assumption so far, it suppose to be the num_rf_chains-1, was
completely wrong.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 22 ++++++++++++++++++++--
1 file changed, 20 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 9bca37820848..25c20d18021a 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4064,17 +4064,35 @@ static u32 get_nss_from_chainmask(u16 chain_mask)
return 1;
}
+static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
+{
+ int nsts = ar->vht_cap_info;
+ nsts &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
+ nsts >>= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
+
+ /* If firmware does not deliver to host number of space-time
+ * streams supported, assume it support up to 4 BF STS and return
+ * the value for VHT CAP: nsts-1)
+ * */
+ if (nsts == 0)
+ return 3;
+
+ return nsts;
+}
+
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
+ int nsts;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
+ nsts = ath10k_mac_get_vht_cap_bf_sts(ar);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
- value |= SM((ar->num_rf_chains - 1), WMI_TXBF_STS_CAP_OFFSET);
+ value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
@@ -6803,7 +6821,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMEE_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE)) {
- val = ar->num_rf_chains - 1;
+ val = ath10k_mac_get_vht_cap_bf_sts(ar);
val <<= IEEE80211_VHT_CAP_BEAMFORMEE_STS_SHIFT;
val &= IEEE80211_VHT_CAP_BEAMFORMEE_STS_MASK;
--
2.1.2
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] ath10k: fix beamformer VHT sounding dimensions capability
2015-09-02 11:20 ` Bartosz Markowski
@ 2015-09-02 11:20 ` Bartosz Markowski
-1 siblings, 0 replies; 6+ messages in thread
From: Bartosz Markowski @ 2015-09-02 11:20 UTC (permalink / raw
To: ath10k; +Cc: linux-wireless, Bartosz Markowski
Similarly to the VHT STS, this is supposed to be propagated by firmware.
In case it's not, use the default value, but as last resort.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 25c20d18021a..db3be8f794e4 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4080,11 +4080,27 @@ static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
return nsts;
}
+static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
+{
+ int sound_dim = ar->vht_cap_info;
+ sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
+ sound_dim >>=IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
+
+ /* If the sounding dimension is not advertised by the firmware,
+ * let's use a default value of 1
+ */
+ if (sound_dim == 0)
+ return 1;
+
+ return sound_dim;
+}
+
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
int nsts;
+ int sound_dim;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
@@ -4094,9 +4110,10 @@ static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
+ sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
- value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);
+ value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
if (!value)
return 0;
@@ -6830,7 +6847,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
- val = ar->num_rf_chains - 1;
+ val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
--
2.1.2
^ permalink raw reply related [flat|nested] 6+ messages in thread
* [PATCH 2/2] ath10k: fix beamformer VHT sounding dimensions capability
@ 2015-09-02 11:20 ` Bartosz Markowski
0 siblings, 0 replies; 6+ messages in thread
From: Bartosz Markowski @ 2015-09-02 11:20 UTC (permalink / raw
To: ath10k; +Cc: linux-wireless, Bartosz Markowski
Similarly to the VHT STS, this is supposed to be propagated by firmware.
In case it's not, use the default value, but as last resort.
Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
---
drivers/net/wireless/ath/ath10k/mac.c | 21 +++++++++++++++++++--
1 file changed, 19 insertions(+), 2 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c
index 25c20d18021a..db3be8f794e4 100644
--- a/drivers/net/wireless/ath/ath10k/mac.c
+++ b/drivers/net/wireless/ath/ath10k/mac.c
@@ -4080,11 +4080,27 @@ static int ath10k_mac_get_vht_cap_bf_sts(struct ath10k *ar)
return nsts;
}
+static int ath10k_mac_get_vht_cap_bf_sound_dim(struct ath10k *ar)
+{
+ int sound_dim = ar->vht_cap_info;
+ sound_dim &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
+ sound_dim >>=IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
+
+ /* If the sounding dimension is not advertised by the firmware,
+ * let's use a default value of 1
+ */
+ if (sound_dim == 0)
+ return 1;
+
+ return sound_dim;
+}
+
static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
{
u32 value = 0;
struct ath10k *ar = arvif->ar;
int nsts;
+ int sound_dim;
if (ath10k_wmi_get_txbf_conf_scheme(ar) != WMI_TXBF_CONF_BEFORE_ASSOC)
return 0;
@@ -4094,9 +4110,10 @@ static int ath10k_mac_set_txbf_conf(struct ath10k_vif *arvif)
IEEE80211_VHT_CAP_MU_BEAMFORMEE_CAPABLE))
value |= SM(nsts, WMI_TXBF_STS_CAP_OFFSET);
+ sound_dim = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE))
- value |= SM((ar->num_rf_chains - 1), WMI_BF_SOUND_DIM_OFFSET);
+ value |= SM(sound_dim, WMI_BF_SOUND_DIM_OFFSET);
if (!value)
return 0;
@@ -6830,7 +6847,7 @@ static struct ieee80211_sta_vht_cap ath10k_create_vht_cap(struct ath10k *ar)
if (ar->vht_cap_info & (IEEE80211_VHT_CAP_SU_BEAMFORMER_CAPABLE |
IEEE80211_VHT_CAP_MU_BEAMFORMER_CAPABLE)) {
- val = ar->num_rf_chains - 1;
+ val = ath10k_mac_get_vht_cap_bf_sound_dim(ar);
val <<= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_SHIFT;
val &= IEEE80211_VHT_CAP_SOUNDING_DIMENSIONS_MASK;
--
2.1.2
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply related [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] ath10k: fix beamformee VHT STS capability
2015-09-02 11:20 ` Bartosz Markowski
@ 2015-09-09 9:42 ` Kalle Valo
-1 siblings, 0 replies; 6+ messages in thread
From: Kalle Valo @ 2015-09-09 9:42 UTC (permalink / raw
To: Bartosz Markowski; +Cc: ath10k, linux-wireless
Bartosz Markowski <bartosz.markowski@tieto.com> writes:
> The VHT STS CAP shall be reported by firmware to host, like in case of
> QCA99x0. For QCA6174 hw family this isn't set for some reason.
> So for this particular chips, let's assume it has the ability to
> support VHT NDP in up to 4 STSs (which is true by the way).
>
> Change the published beamformee STS cap accordingly to 3 or to what
> the firmware reports.
>
> Assumption so far, it suppose to be the num_rf_chains-1, was
> completely wrong.
>
> Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Thanks, both patches applied.
--
Kalle Valo
^ permalink raw reply [flat|nested] 6+ messages in thread
* Re: [PATCH 1/2] ath10k: fix beamformee VHT STS capability
@ 2015-09-09 9:42 ` Kalle Valo
0 siblings, 0 replies; 6+ messages in thread
From: Kalle Valo @ 2015-09-09 9:42 UTC (permalink / raw
To: Bartosz Markowski; +Cc: linux-wireless, ath10k
Bartosz Markowski <bartosz.markowski@tieto.com> writes:
> The VHT STS CAP shall be reported by firmware to host, like in case of
> QCA99x0. For QCA6174 hw family this isn't set for some reason.
> So for this particular chips, let's assume it has the ability to
> support VHT NDP in up to 4 STSs (which is true by the way).
>
> Change the published beamformee STS cap accordingly to 3 or to what
> the firmware reports.
>
> Assumption so far, it suppose to be the num_rf_chains-1, was
> completely wrong.
>
> Signed-off-by: Bartosz Markowski <bartosz.markowski@tieto.com>
Thanks, both patches applied.
--
Kalle Valo
_______________________________________________
ath10k mailing list
ath10k@lists.infradead.org
http://lists.infradead.org/mailman/listinfo/ath10k
^ permalink raw reply [flat|nested] 6+ messages in thread
end of thread, other threads:[~2015-09-09 9:43 UTC | newest]
Thread overview: 6+ messages (download: mbox.gz follow: Atom feed
-- links below jump to the message on this page --
2015-09-02 11:20 [PATCH 1/2] ath10k: fix beamformee VHT STS capability Bartosz Markowski
2015-09-02 11:20 ` Bartosz Markowski
2015-09-02 11:20 ` [PATCH 2/2] ath10k: fix beamformer VHT sounding dimensions capability Bartosz Markowski
2015-09-02 11:20 ` Bartosz Markowski
2015-09-09 9:42 ` [PATCH 1/2] ath10k: fix beamformee VHT STS capability Kalle Valo
2015-09-09 9:42 ` Kalle Valo
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