diff options
| author | Bryan O'Donoghue <bryan.odonoghue@linaro.org> | 2021-06-05 04:11:36 +0300 |
|---|---|---|
| committer | Kalle Valo <kvalo@codeaurora.org> | 2021-06-14 18:18:15 +0300 |
| commit | 6693f7675c9b055ee3428844ee8999bfe22d3cd2 (patch) | |
| tree | 2c0ec7db08fb0600635a778d8b21f4d2184f261b /drivers/net/wireless/ath | |
| parent | 8974e5917b31c30ab30af1e992cfb35eec839a5f (diff) | |
| download | linux-6693f7675c9b055ee3428844ee8999bfe22d3cd2.tar.xz | |
wcn36xx: Add GTK offload to WoWLAN path
Using previously set GTK KCK and KEK material this commit adds GTK rekeying
to the WoWLAN suspend/resume path. A small error in the packing of the
up to now unused command structure is fixed as we go.
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/20210605011140.2004643-9-bryan.odonoghue@linaro.org
Diffstat (limited to 'drivers/net/wireless/ath')
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/hal.h | 2 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/main.c | 4 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/smd.c | 39 | ||||
| -rw-r--r-- | drivers/net/wireless/ath/wcn36xx/smd.h | 3 |
4 files changed, 47 insertions, 1 deletions
diff --git a/drivers/net/wireless/ath/wcn36xx/hal.h b/drivers/net/wireless/ath/wcn36xx/hal.h index 3b949b0b3792..1f3c2e840232 100644 --- a/drivers/net/wireless/ath/wcn36xx/hal.h +++ b/drivers/net/wireless/ath/wcn36xx/hal.h @@ -4905,7 +4905,7 @@ struct wcn36xx_hal_gtk_offload_req_msg { u64 key_replay_counter; u8 bss_index; -}; +} __packed; struct wcn36xx_hal_gtk_offload_rsp_msg { struct wcn36xx_hal_msg_header header; diff --git a/drivers/net/wireless/ath/wcn36xx/main.c b/drivers/net/wireless/ath/wcn36xx/main.c index ec32b8b0067d..db1528a14757 100644 --- a/drivers/net/wireless/ath/wcn36xx/main.c +++ b/drivers/net/wireless/ath/wcn36xx/main.c @@ -1121,6 +1121,9 @@ static int wcn36xx_suspend(struct ieee80211_hw *hw, struct cfg80211_wowlan *wow) ret = wcn36xx_smd_ipv6_ns_offload(wcn, vif, true); if (ret) goto out; + ret = wcn36xx_smd_gtk_offload(wcn, vif, true); + if (ret) + goto out; ret = wcn36xx_smd_set_power_params(wcn, true); } out: @@ -1139,6 +1142,7 @@ static int wcn36xx_resume(struct ieee80211_hw *hw) vif = wcn36xx_get_first_assoc_vif(wcn); if (vif) { wcn36xx_smd_set_power_params(wcn, false); + wcn36xx_smd_gtk_offload(wcn, vif, false); wcn36xx_smd_ipv6_ns_offload(wcn, vif, false); wcn36xx_smd_arp_offload(wcn, vif, false); } diff --git a/drivers/net/wireless/ath/wcn36xx/smd.c b/drivers/net/wireless/ath/wcn36xx/smd.c index 4a50e5f8456a..4063888e3f03 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.c +++ b/drivers/net/wireless/ath/wcn36xx/smd.c @@ -2856,6 +2856,44 @@ int wcn36xx_smd_ipv6_ns_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, } #endif +int wcn36xx_smd_gtk_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, + bool enable) +{ + struct wcn36xx_vif *vif_priv = wcn36xx_vif_to_priv(vif); + struct wcn36xx_hal_gtk_offload_req_msg msg_body; + int ret; + + mutex_lock(&wcn->hal_mutex); + + INIT_HAL_MSG(msg_body, WCN36XX_HAL_GTK_OFFLOAD_REQ); + + if (enable) { + memcpy(&msg_body.kek, vif_priv->rekey_data.kek, NL80211_KEK_LEN); + memcpy(&msg_body.kck, vif_priv->rekey_data.kck, NL80211_KCK_LEN); + msg_body.key_replay_counter = + le64_to_cpu(vif_priv->rekey_data.replay_ctr); + msg_body.bss_index = vif_priv->bss_index; + } else { + msg_body.flags = WCN36XX_HAL_GTK_OFFLOAD_FLAGS_DISABLE; + } + + PREPARE_HAL_BUF(wcn->hal_buf, msg_body); + + ret = wcn36xx_smd_send_and_wait(wcn, msg_body.header.len); + if (ret) { + wcn36xx_err("Sending host_offload_arp failed\n"); + goto out; + } + ret = wcn36xx_smd_rsp_status_check(wcn->hal_buf, wcn->hal_rsp_len); + if (ret) { + wcn36xx_err("host_offload_arp failed err=%d\n", ret); + goto out; + } +out: + mutex_unlock(&wcn->hal_mutex); + return ret; +} + int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev, void *buf, int len, void *priv, u32 addr) { @@ -2905,6 +2943,7 @@ int wcn36xx_smd_rsp_process(struct rpmsg_device *rpdev, case WCN36XX_HAL_START_SCAN_OFFLOAD_RSP: case WCN36XX_HAL_STOP_SCAN_OFFLOAD_RSP: case WCN36XX_HAL_HOST_OFFLOAD_RSP: + case WCN36XX_HAL_GTK_OFFLOAD_RSP: memcpy(wcn->hal_buf, buf, len); wcn->hal_rsp_len = len; complete(&wcn->hal_rsp_compl); diff --git a/drivers/net/wireless/ath/wcn36xx/smd.h b/drivers/net/wireless/ath/wcn36xx/smd.h index e03ab7878432..cdf4231efe26 100644 --- a/drivers/net/wireless/ath/wcn36xx/smd.h +++ b/drivers/net/wireless/ath/wcn36xx/smd.h @@ -153,4 +153,7 @@ int wcn36xx_smd_arp_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, int wcn36xx_smd_ipv6_ns_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, bool enable); +int wcn36xx_smd_gtk_offload(struct wcn36xx *wcn, struct ieee80211_vif *vif, + bool enable); + #endif /* _SMD_H_ */ |