Return-path: Received: from mail2.candelatech.com ([208.74.158.173]:49987 "EHLO mail2.candelatech.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753492AbcEIXL2 (ORCPT ); Mon, 9 May 2016 19:11:28 -0400 From: greearb@candelatech.com To: ath10k@lists.infradead.org Cc: linux-wireless@vger.kernel.org, Ben Greear Subject: [PATCH 17/21] ath10k: Enable detecting failure to install key in firmware (CT). Date: Mon, 9 May 2016 16:11:11 -0700 Message-Id: <1462835475-11079-18-git-send-email-greearb@candelatech.com> (sfid-20160510_011149_565062_25017192) In-Reply-To: <1462835475-11079-1-git-send-email-greearb@candelatech.com> References: <1462835475-11079-1-git-send-email-greearb@candelatech.com> Sender: linux-wireless-owner@vger.kernel.org List-ID: From: Ben Greear CT firmware has been modified so that it will always return a response message when user requests to add a key, even if the key could not actually be added. Upstream firmware may assert or just not respond in a failure case. This change should be compatible with non CT firmware. Signed-off-by: Ben Greear --- drivers/net/wireless/ath/ath10k/core.h | 1 + drivers/net/wireless/ath/ath10k/htt.h | 7 +++++-- drivers/net/wireless/ath/ath10k/htt_rx.c | 20 +++++++++++++++++--- drivers/net/wireless/ath/ath10k/mac.c | 3 ++- 4 files changed, 25 insertions(+), 6 deletions(-) diff --git a/drivers/net/wireless/ath/ath10k/core.h b/drivers/net/wireless/ath/ath10k/core.h index dd38f34..dae453a 100644 --- a/drivers/net/wireless/ath/ath10k/core.h +++ b/drivers/net/wireless/ath/ath10k/core.h @@ -848,6 +848,7 @@ struct ath10k { unsigned int filter_flags; unsigned long dev_flags; bool dfs_block_radar_events; + int install_key_rv; /* Store error code from key-install */ /* protected by conf_mutex */ bool radar_enabled; diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h index 911c535..c50b343 100644 --- a/drivers/net/wireless/ath/ath10k/htt.h +++ b/drivers/net/wireless/ath/ath10k/htt.h @@ -702,8 +702,9 @@ enum htt_security_types { }; enum htt_security_flags { -#define HTT_SECURITY_TYPE_MASK 0x7F +#define HTT_SECURITY_TYPE_MASK 0x3F #define HTT_SECURITY_TYPE_LSB 0 + HTT_SECURITY_IS_FAILURE = 1 << 6, /* CT firmware only */ HTT_SECURITY_IS_UNICAST = 1 << 7 }; @@ -712,7 +713,9 @@ struct htt_security_indication { /* dont use bitfields; undefined behaviour */ u8 flags; /* %htt_security_flags */ struct { - u8 security_type:7, /* %htt_security_types */ + u8 security_type:6, /* %htt_security_types */ + is_failure:1, /* does this response indicate failure + (CT Firmware) */ is_unicast:1; } __packed; } __packed; diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c index 47da904..02b5417 100644 --- a/drivers/net/wireless/ath/ath10k/htt_rx.c +++ b/drivers/net/wireless/ath/ath10k/htt_rx.c @@ -2307,9 +2307,23 @@ bool ath10k_htt_t2h_msg_handler(struct ath10k *ar, struct sk_buff *skb) ath10k_dbg(ar, ATH10K_DBG_HTT, "sec ind peer_id %d unicast %d type %d\n", - __le16_to_cpu(ev->peer_id), - !!(ev->flags & HTT_SECURITY_IS_UNICAST), - MS(ev->flags, HTT_SECURITY_TYPE)); + __le16_to_cpu(ev->peer_id), + !!(ev->flags & HTT_SECURITY_IS_UNICAST), + MS(ev->flags, HTT_SECURITY_TYPE)); + + /* CT firmware adds way to determine failure of key set, without + * just timing things out. Indication of failure is determined + * by the 6th bit of the security-type being set. + */ + if (ev->flags & HTT_SECURITY_IS_FAILURE) { + ath10k_warn(ar, "Firmware failed to set security key, peer_id: %d unicast %d type %d\n", + __le16_to_cpu(ev->peer_id), + !!(ev->flags & HTT_SECURITY_IS_UNICAST), + MS(ev->flags, HTT_SECURITY_TYPE)); + ar->install_key_rv = -EINVAL; + } else { + ar->install_key_rv = 0; + } complete(&ar->install_key_done); break; } diff --git a/drivers/net/wireless/ath/ath10k/mac.c b/drivers/net/wireless/ath/ath10k/mac.c index 2169337..373f2ee 100644 --- a/drivers/net/wireless/ath/ath10k/mac.c +++ b/drivers/net/wireless/ath/ath10k/mac.c @@ -255,7 +255,8 @@ static int ath10k_install_key(struct ath10k_vif *arvif, if (time_left == 0) return -ETIMEDOUT; - return 0; + ret = ar->install_key_rv; + return ret; } static int ath10k_install_peer_wep_keys(struct ath10k_vif *arvif, -- 2.4.3