ath10k: deduplicate bitrate to rate idx conversion
It's possible to derive rate index from bitrate
without any additional mapping structures/logic.
This should have little to none impact on
performance since this is only done for management
frames and the previous approach wasn't
particularly optimized.
Signed-off-by: Michal Kazior <michal.kazior@tieto.com>
Signed-off-by: Kalle Valo <kvalo@qca.qualcomm.com>
diff --git a/drivers/net/wireless/ath/ath10k/wmi.c b/drivers/net/wireless/ath/ath10k/wmi.c
index ae6a038..4778031 100644
--- a/drivers/net/wireless/ath/ath10k/wmi.c
+++ b/drivers/net/wireless/ath/ath10k/wmi.c
@@ -1352,63 +1352,6 @@
return band;
}
-static inline u8 get_rate_idx(u32 rate, enum ieee80211_band band)
-{
- u8 rate_idx = 0;
-
- /* rate in Kbps */
- switch (rate) {
- case 1000:
- rate_idx = 0;
- break;
- case 2000:
- rate_idx = 1;
- break;
- case 5500:
- rate_idx = 2;
- break;
- case 11000:
- rate_idx = 3;
- break;
- case 6000:
- rate_idx = 4;
- break;
- case 9000:
- rate_idx = 5;
- break;
- case 12000:
- rate_idx = 6;
- break;
- case 18000:
- rate_idx = 7;
- break;
- case 24000:
- rate_idx = 8;
- break;
- case 36000:
- rate_idx = 9;
- break;
- case 48000:
- rate_idx = 10;
- break;
- case 54000:
- rate_idx = 11;
- break;
- default:
- break;
- }
-
- if (band == IEEE80211_BAND_5GHZ) {
- if (rate_idx > 3)
- /* Omit CCK rates */
- rate_idx -= 4;
- else
- rate_idx = 0;
- }
-
- return rate_idx;
-}
-
/* If keys are configured, HW decrypts all frames
* with protected bit set. Mark such frames as decrypted.
*/
@@ -1490,6 +1433,7 @@
struct wmi_mgmt_rx_ev_arg arg = {};
struct ieee80211_rx_status *status = IEEE80211_SKB_RXCB(skb);
struct ieee80211_hdr *hdr;
+ struct ieee80211_supported_band *sband;
u32 rx_status;
u32 channel;
u32 phy_mode;
@@ -1560,9 +1504,11 @@
if (phy_mode == MODE_11B && status->band == IEEE80211_BAND_5GHZ)
ath10k_dbg(ar, ATH10K_DBG_MGMT, "wmi mgmt rx 11b (CCK) on 5GHz\n");
+ sband = &ar->mac.sbands[status->band];
+
status->freq = ieee80211_channel_to_frequency(channel, status->band);
status->signal = snr + ATH10K_DEFAULT_NOISE_FLOOR;
- status->rate_idx = get_rate_idx(rate, status->band);
+ status->rate_idx = ath10k_mac_bitrate_to_idx(sband, rate / 100);
hdr = (struct ieee80211_hdr *)skb->data;
fc = le16_to_cpu(hdr->frame_control);