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wcn36xx: Add ipv6 address tracking

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Taking code from iwlwifi this commit adds a standard callback for
ipv6_addr_change().

This callback allows wcn36xx to know the set of ipv6 addresses. Something
we need to know in order to get wowlan working with ipv6.

Signed-off-by: Bryan O'Donoghue <bryan.odonoghue@linaro.org>
Tested-by: Benjamin Li <benl@squareup.com>
Signed-off-by: Kalle Valo <kvalo@codeaurora.org>
Link: https://lore.kernel.org/r/20210605011140.2004643-6-bryan.odonoghue@linaro.org
This commit is contained in:
Bryan O'Donoghue
2021-06-05 02:11:33 +01:00
committed by Kalle Valo
parent 6feb634f4d
commit c7a61af559
3 changed files with 41 additions and 0 deletions
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1
drivers/net/wireless/ath/wcn36xx/hal.h
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@@ -3466,6 +3466,7 @@ struct wcn36xx_hal_rem_bcn_filter_req {
#define WCN36XX_HAL_OFFLOAD_BCAST_FILTER_ENABLE 0x2
#define WCN36XX_HAL_OFFLOAD_ARP_AND_BCAST_FILTER_ENABLE \
(WCN36XX_HAL_OFFLOAD_ENABLE | WCN36XX_HAL_OFFLOAD_BCAST_FILTER_ENABLE)
#define WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX 0x02
struct wcn36xx_hal_ns_offload_params {
u8 src_ipv6_addr[WCN36XX_HAL_IPV6_ADDR_LEN];

32
drivers/net/wireless/ath/wcn36xx/main.c
View File

@@ -25,6 +25,7 @@
#include <linux/rpmsg.h>
#include <linux/soc/qcom/smem_state.h>
#include <linux/soc/qcom/wcnss_ctrl.h>
#include <net/ipv6.h>
#include "wcn36xx.h"
#include "testmode.h"
@@ -1208,6 +1209,34 @@ static int wcn36xx_ampdu_action(struct ieee80211_hw *hw,
return ret;
}
#if IS_ENABLED(CONFIG_IPV6)
static void wcn36xx_ipv6_addr_change(struct ieee80211_hw *hw,
struct ieee80211_vif *vif,
struct inet6_dev *idev)
{
struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif);
struct inet6_ifaddr *ifa;
int idx = 0;
memset(vif_priv->tentative_addrs, 0, sizeof(vif_priv->tentative_addrs));
read_lock_bh(&idev->lock);
list_for_each_entry(ifa, &idev->addr_list, if_list) {
vif_priv->target_ipv6_addrs[idx] = ifa->addr;
if (ifa->flags & IFA_F_TENTATIVE)
__set_bit(idx, vif_priv->tentative_addrs);
idx++;
if (idx >= WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX)
break;
wcn36xx_dbg(WCN36XX_DBG_MAC, "%pI6 %s\n", &ifa->addr,
(ifa->flags & IFA_F_TENTATIVE) ? "tentative" : NULL);
}
read_unlock_bh(&idev->lock);
vif_priv->num_target_ipv6_addrs = idx;
}
#endif
static const struct ieee80211_ops wcn36xx_ops = {
.start = wcn36xx_start,
.stop = wcn36xx_stop,
@@ -1231,6 +1260,9 @@ static const struct ieee80211_ops wcn36xx_ops = {
.sta_add = wcn36xx_sta_add,
.sta_remove = wcn36xx_sta_remove,
.ampdu_action = wcn36xx_ampdu_action,
#if IS_ENABLED(CONFIG_IPV6)
.ipv6_addr_change = wcn36xx_ipv6_addr_change,
#endif
CFG80211_TESTMODE_CMD(wcn36xx_tm_cmd)
};

8
drivers/net/wireless/ath/wcn36xx/wcn36xx.h
View File

@@ -18,6 +18,7 @@
#define _WCN36XX_H_
#include <linux/completion.h>
#include <linux/in6.h>
#include <linux/printk.h>
#include <linux/spinlock.h>
#include <net/mac80211.h>
@@ -136,6 +137,13 @@ struct wcn36xx_vif {
u8 self_dpu_desc_index;
u8 self_ucast_dpu_sign;
#if IS_ENABLED(CONFIG_IPV6)
/* IPv6 addresses for WoWLAN */
struct in6_addr target_ipv6_addrs[WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX];
unsigned long tentative_addrs[BITS_TO_LONGS(WCN36XX_HAL_IPV6_OFFLOAD_ADDR_MAX)];
int num_target_ipv6_addrs;
#endif
struct list_head sta_list;
};