[PATCH 5/8] ath10k: kill not needed fields from htt_rx_info
Janusz Dziedzic
janusz.dziedzic at tieto.com
Fri Mar 21 05:32:18 EDT 2014
Kill rates, tsf, fcs_err, mic_err, amsdu_more, encrypt_type, signal
from htt_rx_info and setup this directly in ieee80211_rx_status.
Signed-off-by: Janusz Dziedzic <janusz.dziedzic at tieto.com>
---
drivers/net/wireless/ath/ath10k/htt.h | 13 ---
drivers/net/wireless/ath/ath10k/htt_rx.c | 134 +++++++++++++++++-------------
2 files changed, 74 insertions(+), 73 deletions(-)
diff --git a/drivers/net/wireless/ath/ath10k/htt.h b/drivers/net/wireless/ath/ath10k/htt.h
index e80f033..870f807 100644
--- a/drivers/net/wireless/ath/ath10k/htt.h
+++ b/drivers/net/wireless/ath/ath10k/htt.h
@@ -1176,19 +1176,6 @@ struct htt_peer_unmap_event {
struct htt_rx_info {
struct sk_buff *skb;
struct ieee80211_rx_status rx_status;
- enum htt_rx_mpdu_status status;
- enum htt_rx_mpdu_encrypt_type encrypt_type;
- s8 signal;
- struct {
- u8 info0;
- u32 info1;
- u32 info2;
- } rate;
-
- u32 tsf;
- bool fcs_err;
- bool amsdu_more;
- bool mic_err;
};
struct ath10k_htt_txbuf {
diff --git a/drivers/net/wireless/ath/ath10k/htt_rx.c b/drivers/net/wireless/ath/ath10k/htt_rx.c
index b37540b..a994a4f 100644
--- a/drivers/net/wireless/ath/ath10k/htt_rx.c
+++ b/drivers/net/wireless/ath/ath10k/htt_rx.c
@@ -655,14 +655,12 @@ static const u8 rx_legacy_rate_idx[] = {
5, /* 0x0F - 9Mbps */
};
-static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
+static void ath10k_htt_rx_h_rates(struct ath10k *ar,
enum ieee80211_band band,
+ u8 info0, u32 info1, u32 info2,
struct ieee80211_rx_status *status)
{
u8 cck, rate, rate_idx, bw, sgi, mcs, nss;
- u8 info0 = info->rate.info0;
- u32 info1 = info->rate.info1;
- u32 info2 = info->rate.info2;
u8 preamble = 0;
/* Check if valid fields */
@@ -749,6 +747,27 @@ static void ath10k_htt_rx_h_rates(struct ath10k *ar, struct htt_rx_info *info,
}
}
+static void ath10k_htt_rx_h_protected(struct ath10k_htt *htt,
+ struct htt_rx_info *info,
+ enum htt_rx_mpdu_encrypt_type enctype)
+{
+ struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
+
+
+ if (enctype == HTT_RX_MPDU_ENCRYPT_NONE) {
+ info->rx_status.flag &= ~(RX_FLAG_DECRYPTED |
+ RX_FLAG_IV_STRIPPED |
+ RX_FLAG_MMIC_STRIPPED);
+ return;
+ }
+
+ info->rx_status.flag |= RX_FLAG_DECRYPTED |
+ RX_FLAG_IV_STRIPPED |
+ RX_FLAG_MMIC_STRIPPED;
+ hdr->frame_control = __cpu_to_le16(__le16_to_cpu(hdr->frame_control) &
+ ~IEEE80211_FCTL_PROTECTED);
+}
+
static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
struct ieee80211_rx_status *status)
{
@@ -772,36 +791,10 @@ static bool ath10k_htt_rx_h_channel(struct ath10k *ar,
static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
{
struct ieee80211_rx_status *status;
- struct ieee80211_hdr *hdr = (struct ieee80211_hdr *)info->skb->data;
status = IEEE80211_SKB_RXCB(info->skb);
memcpy(status, &info->rx_status, sizeof(*status));
- if (info->encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
- status->flag |= RX_FLAG_DECRYPTED | RX_FLAG_IV_STRIPPED |
- RX_FLAG_MMIC_STRIPPED;
- hdr->frame_control = __cpu_to_le16(
- __le16_to_cpu(hdr->frame_control) &
- ~IEEE80211_FCTL_PROTECTED);
- }
-
- if (info->mic_err)
- status->flag |= RX_FLAG_MMIC_ERROR;
-
- if (info->fcs_err)
- status->flag |= RX_FLAG_FAILED_FCS_CRC;
-
- if (info->amsdu_more)
- status->flag |= RX_FLAG_AMSDU_MORE;
-
- ath10k_htt_rx_h_rates(ar, info, status->band, status);
-
- if (info->rate.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
- /* TSF available only in 32-bit */
- status->mactime = info->tsf & 0xffffffff;
- status->flag |= RX_FLAG_MACTIME_END;
- }
-
ath10k_dbg(ATH10K_DBG_DATA,
"rx skb %p len %u %s%s%s%s%s %srate_idx %u vht_nss %u freq %u band %u flag 0x%x fcs-err %i\n",
info->skb,
@@ -815,7 +808,8 @@ static void ath10k_process_rx(struct ath10k *ar, struct htt_rx_info *info)
status->rate_idx,
status->vht_nss,
status->freq,
- status->band, status->flag, info->fcs_err);
+ status->band, status->flag,
+ !!(status->flag & RX_FLAG_FAILED_FCS_CRC));
ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "rx skb: ",
info->skb->data, info->skb->len);
@@ -915,12 +909,14 @@ static void ath10k_htt_rx_amsdu(struct ath10k_htt *htt,
}
info->skb = skb;
- info->encrypt_type = enctype;
+ ath10k_htt_rx_h_protected(htt, info, enctype);
skb = skb->next;
info->skb->next = NULL;
if (skb)
- info->amsdu_more = true;
+ info->rx_status.flag |= RX_FLAG_AMSDU_MORE;
+ else
+ info->rx_status.flag &= ~RX_FLAG_AMSDU_MORE;
ath10k_process_rx(htt->ar, info);
}
@@ -995,7 +991,7 @@ static void ath10k_htt_rx_msdu(struct ath10k_htt *htt, struct htt_rx_info *info)
}
info->skb = skb;
- info->encrypt_type = enctype;
+ ath10k_htt_rx_h_protected(htt, info, enctype);
ath10k_process_rx(htt->ar, info);
}
@@ -1140,11 +1136,9 @@ static int ath10k_unchain_msdu(struct sk_buff *msdu_head)
static bool ath10k_htt_rx_amsdu_allowed(struct ath10k_htt *htt,
struct sk_buff *head,
- struct htt_rx_info *info,
+ enum htt_rx_mpdu_status status,
bool channel_set)
{
- enum htt_rx_mpdu_status status = info->status;
-
if (!head) {
ath10k_warn("htt rx no data!\n");
return false;
@@ -1198,11 +1192,12 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
{
struct htt_rx_info info;
struct htt_rx_indication_mpdu_range *mpdu_ranges;
+ enum htt_rx_mpdu_status status;
struct ieee80211_hdr *hdr;
int num_mpdu_ranges;
int fw_desc_len;
u8 *fw_desc;
- bool channel_set;
+ bool channel_set, fcs_err, mic_err;
int i, j;
lockdep_assert_held(&htt->rx_ring.lock);
@@ -1217,15 +1212,25 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
mpdu_ranges = htt_rx_ind_get_mpdu_ranges(rx);
/* Fill this once, while this is per-ppdu */
- info.signal = ATH10K_DEFAULT_NOISE_FLOOR;
- info.signal += rx->ppdu.combined_rssi;
+ info.rx_status.signal = ATH10K_DEFAULT_NOISE_FLOOR;
+ info.rx_status.signal += rx->ppdu.combined_rssi;
+
+ if (rx->ppdu.info0 & HTT_RX_INDICATION_INFO0_END_VALID) {
+ /* TSF available only in 32-bit */
+ info.rx_status.mactime =
+ __le32_to_cpu(rx->ppdu.tsf) & 0xffffffff;
+ info.rx_status.flag |= RX_FLAG_MACTIME_END;
+ }
channel_set = ath10k_htt_rx_h_channel(htt->ar, &info.rx_status);
- info.rate.info0 = rx->ppdu.info0;
- info.rate.info1 = __le32_to_cpu(rx->ppdu.info1);
- info.rate.info2 = __le32_to_cpu(rx->ppdu.info2);
- info.tsf = __le32_to_cpu(rx->ppdu.tsf);
+ if (channel_set) {
+ ath10k_htt_rx_h_rates(htt->ar, info.rx_status.band,
+ rx->ppdu.info0,
+ __le32_to_cpu(rx->ppdu.info1),
+ __le32_to_cpu(rx->ppdu.info2),
+ &info.rx_status);
+ }
ath10k_dbg_dump(ATH10K_DBG_HTT_DUMP, NULL, "htt rx ind: ",
rx, sizeof(*rx) +
@@ -1233,7 +1238,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
num_mpdu_ranges));
for (i = 0; i < num_mpdu_ranges; i++) {
- info.status = mpdu_ranges[i].mpdu_range_status;
+ status = mpdu_ranges[i].mpdu_range_status;
for (j = 0; j < mpdu_ranges[i].mpdu_count; j++) {
struct sk_buff *msdu_head, *msdu_tail;
@@ -1248,7 +1253,7 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
&msdu_tail);
if (!ath10k_htt_rx_amsdu_allowed(htt, msdu_head,
- &info,
+ status,
channel_set)) {
ath10k_htt_rx_free_msdu_chain(msdu_head);
continue;
@@ -1261,14 +1266,24 @@ static void ath10k_htt_rx_handler(struct ath10k_htt *htt,
}
info.skb = msdu_head;
- info.fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
- info.mic_err = ath10k_htt_rx_has_mic_err(msdu_head);
- if (info.fcs_err)
+ fcs_err = ath10k_htt_rx_has_fcs_err(msdu_head);
+ if (fcs_err)
+ info.rx_status.flag |= RX_FLAG_FAILED_FCS_CRC;
+ else
+ info.rx_status.flag &= ~RX_FLAG_FAILED_FCS_CRC;
+
+ mic_err = ath10k_htt_rx_has_mic_err(msdu_head);
+ if (mic_err)
+ info.rx_status.flag |= RX_FLAG_MMIC_ERROR;
+ else
+ info.rx_status.flag &= ~RX_FLAG_MMIC_ERROR;
+
+ if (fcs_err)
ath10k_dbg(ATH10K_DBG_HTT,
"htt rx has FCS err\n");
- if (info.mic_err)
+ if (mic_err)
ath10k_dbg(ATH10K_DBG_HTT,
"htt rx has MIC err\n");
@@ -1288,6 +1303,7 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
struct htt_rx_fragment_indication *frag)
{
struct sk_buff *msdu_head, *msdu_tail;
+ enum htt_rx_mpdu_encrypt_type enctype;
struct htt_rx_desc *rxd;
enum rx_msdu_decap_format fmt;
struct htt_rx_info info = {};
@@ -1341,15 +1357,13 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
}
info.skb = msdu_head;
- info.status = HTT_RX_IND_MPDU_STATUS_OK;
- info.encrypt_type = MS(__le32_to_cpu(rxd->mpdu_start.info0),
- RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+ enctype = MS(__le32_to_cpu(rxd->mpdu_start.info0),
+ RX_MPDU_START_INFO0_ENCRYPT_TYPE);
+ ath10k_htt_rx_h_protected(htt, &info, enctype);
info.skb->ip_summed = ath10k_htt_rx_get_csum_state(info.skb);
- if (tkip_mic_err) {
+ if (tkip_mic_err)
ath10k_warn("tkip mic error\n");
- info.status = HTT_RX_IND_MPDU_STATUS_TKIP_MIC_ERR;
- }
if (decrypt_err) {
ath10k_warn("decryption err in fragmented rx\n");
@@ -1357,9 +1371,9 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
goto end;
}
- if (info.encrypt_type != HTT_RX_MPDU_ENCRYPT_NONE) {
+ if (enctype != HTT_RX_MPDU_ENCRYPT_NONE) {
hdrlen = ieee80211_hdrlen(hdr->frame_control);
- paramlen = ath10k_htt_rx_crypto_param_len(info.encrypt_type);
+ paramlen = ath10k_htt_rx_crypto_param_len(enctype);
/* It is more efficient to move the header than the payload */
memmove((void *)info.skb->data + paramlen,
@@ -1373,11 +1387,11 @@ static void ath10k_htt_rx_frag_handler(struct ath10k_htt *htt,
trim = 4;
/* remove crypto trailer */
- trim += ath10k_htt_rx_crypto_tail_len(info.encrypt_type);
+ trim += ath10k_htt_rx_crypto_tail_len(enctype);
/* last fragment of TKIP frags has MIC */
if (!ieee80211_has_morefrags(hdr->frame_control) &&
- info.encrypt_type == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
+ enctype == HTT_RX_MPDU_ENCRYPT_TKIP_WPA)
trim += 8;
if (trim > info.skb->len) {
--
1.7.9.5
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