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Commit 92cc976b authored by Sarada Prasanna Garnayak's avatar Sarada Prasanna Garnayak Committed by Gerrit - the friendly Code Review server
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ath10k: enable gtk offload for the wcn3990 wlan module 



Register ops to store the gtk rekey data from the wlan
utility(wpa_supplicant) and configure the GTK offload
during wow suspend.

If the wlan module in suspend state with wowlan mode
this feature adds support to prevent the device to wakeup
from sleep state on gtk rekey failure in wlan firmware.

CRs-Fixed: 2150959
Change-Id: I968acfe65bd082d37c855f89d4460a09c055ffd8
Signed-off-by: default avatarSarada Prasanna Garnayak <sgarna@codeaurora.org>
parent 8328caec

drivers/net/wireless/ath/ath10k/core.h

+1 −0
Original line number Diff line number Diff line
@@ -433,6 +433,7 @@ struct ath10k_vif { 
	struct cfg80211_bitrate_mask bitrate_mask;

	struct wmi_ns_arp_offload_req arp_offload;

	struct wmi_ns_arp_offload_req ns_offload;

	struct wmi_gtk_rekey_data gtk_rekey_data;

};



struct ath10k_vif_iter {

drivers/net/wireless/ath/ath10k/mac.c

+1 −0
Original line number Diff line number Diff line
@@ -7583,6 +7583,7 @@ static const struct ieee80211_ops ath10k_ops = { 
	.suspend			= ath10k_wow_op_suspend,

	.resume				= ath10k_wow_op_resume,

	.set_wakeup			= ath10k_wow_op_set_wakeup,

	.set_rekey_data			= ath10k_wow_op_set_rekey_data,

#endif

#ifdef CONFIG_MAC80211_DEBUGFS

	.sta_add_debugfs		= ath10k_sta_add_debugfs,

drivers/net/wireless/ath/ath10k/wmi-ops.h

+19 −0
Original line number Diff line number Diff line
@@ -162,6 +162,8 @@ struct wmi_ops { 
					     const struct wmi_sta_keepalive_arg *arg);

	struct sk_buff *(*gen_set_arp_ns_offload)(struct ath10k *ar,

						  struct ath10k_vif *arvif);

	struct sk_buff *(*gen_gtk_offload)(struct ath10k *ar,

					   struct ath10k_vif *arvif);

	struct sk_buff *(*gen_wow_enable)(struct ath10k *ar);

	struct sk_buff *(*gen_wow_add_wakeup_event)(struct ath10k *ar, u32 vdev_id,

						    enum wmi_wow_wakeup_event event,
@@ -1199,6 +1201,23 @@ ath10k_wmi_set_arp_ns_offload(struct ath10k *ar, struct ath10k_vif *arvif) 
	return ath10k_wmi_cmd_send(ar, skb, cmd_id);

}



static inline int

ath10k_wmi_gtk_offload(struct ath10k *ar, struct ath10k_vif *arvif)

{

	struct sk_buff *skb;

	u32 cmd_id;



	if (!ar->wmi.ops->gen_gtk_offload)

		return -EOPNOTSUPP;



	skb = ar->wmi.ops->gen_gtk_offload(ar, arvif);

	if (IS_ERR(skb))

		return PTR_ERR(skb);



	cmd_id = ar->wmi.cmd->gtk_offload_cmdid;

	return ath10k_wmi_cmd_send(ar, skb, cmd_id);

}



static inline int

ath10k_wmi_wow_enable(struct ath10k *ar)

{

drivers/net/wireless/ath/ath10k/wmi-tlv.c

+35 −0
Original line number Diff line number Diff line
@@ -3014,6 +3014,40 @@ ath10k_wmi_tlv_op_gen_tdls_peer_update(struct ath10k *ar, 
	return skb;

}



static struct sk_buff *

ath10k_wmi_op_gen_gtk_offload(struct ath10k *ar, struct ath10k_vif *arvif)

{

	struct wmi_tlv_gtk_offload_cmd *cmd;

	struct wmi_tlv *tlv;

	struct sk_buff *skb;

	struct wmi_gtk_rekey_data *rekey_data = &arvif->gtk_rekey_data;

	int len;



	len = sizeof(*cmd) + sizeof(*tlv);

	skb = ath10k_wmi_alloc_skb(ar, len);

	if (!skb)

		return ERR_PTR(-ENOMEM);



	tlv = (void *)skb->data;

	tlv->tag = __cpu_to_le16(WMI_TLV_TAG_STRUCT_GTK_OFFLOAD_CMD);

	tlv->len = __cpu_to_le16(sizeof(*cmd));

	cmd = (void *)tlv->value;

	if (rekey_data->enable_offload) {

		cmd->vdev_id = __cpu_to_le32(arvif->vdev_id);

		cmd->flags |= __cpu_to_le32(WMI_GTK_OFFLOAD_ENABLE_OPCODE);

		memcpy(cmd->kek, rekey_data->kek, NL80211_KEK_LEN);

		memcpy(cmd->kck, rekey_data->kck, NL80211_KCK_LEN);

		cmd->replay_ctr = __cpu_to_le64(rekey_data->replay_ctr);

	} else {

		cmd->vdev_id = __cpu_to_le32(arvif->vdev_id);

		cmd->flags |= __cpu_to_le32(WMI_GTK_OFFLOAD_DISABLE_OPCODE);

	}



	ath10k_dbg(ar, ATH10K_DBG_WMI,

		   "wmi GTK offload for vdev: %d\n", arvif->vdev_id);

	return skb;

}



static struct sk_buff *

ath10k_wmi_tlv_op_gen_set_arp_ns_offload(struct ath10k *ar,

					 struct ath10k_vif *arvif)
@@ -3778,6 +3812,7 @@ static const struct wmi_ops wmi_tlv_ops = { 
	.gen_vdev_sta_uapsd = ath10k_wmi_tlv_op_gen_vdev_sta_uapsd,

	.gen_sta_keepalive = ath10k_wmi_tlv_op_gen_sta_keepalive,

	.gen_set_arp_ns_offload = ath10k_wmi_tlv_op_gen_set_arp_ns_offload,

	.gen_gtk_offload = ath10k_wmi_op_gen_gtk_offload,

	.gen_wow_enable = ath10k_wmi_tlv_op_gen_wow_enable,

	.gen_wow_add_wakeup_event = ath10k_wmi_tlv_op_gen_wow_add_wakeup_event,

	.gen_wow_host_wakeup_ind = ath10k_wmi_tlv_gen_wow_host_wakeup_ind,

drivers/net/wireless/ath/ath10k/wmi-tlv.h

+8 −0
Original line number Diff line number Diff line
@@ -1567,6 +1567,14 @@ struct wmi_tlv_arp_ns_offload_cmd { 
	__le32 num_ns_ext_tuples;

} __packed;



struct wmi_tlv_gtk_offload_cmd {

	__le32 vdev_id;

	__le32 flags;

	u8 kek[NL80211_KEK_LEN];

	u8 kck[NL80211_KCK_LEN];

	__le64 replay_ctr;

} __packed;



struct wmi_tlv_wow_host_wakeup_ind {

	__le32 reserved;

} __packed;