From 92ed48e5230e8f5906dda0cc31715b3b7e3fe303 Mon Sep 17 00:00:00 2001 From: Benoit PAPILLAULT Date: Mon, 17 Aug 2009 18:56:10 +0200 Subject: [PATCH] rt2x00: Add support for retry rates rt2800pci can handle different retry rates, it will always step 1 rate down after a failed transmission so creating the retry rate list for mac80211 is quite simple. Signed-off-by: Benoit PAPILLAULT Signed-off-by: Ivo van Doorn Signed-off-by: John W. Linville --- drivers/net/wireless/rt2x00/rt2x00dev.c | 22 +++++++++++++++++----- drivers/net/wireless/rt2x00/rt2x00queue.h | 2 ++ 2 files changed, 19 insertions(+), 5 deletions(-) diff --git a/drivers/net/wireless/rt2x00/rt2x00dev.c b/drivers/net/wireless/rt2x00/rt2x00dev.c index b6676c6722fc..9ab70e435b5d 100644 --- a/drivers/net/wireless/rt2x00/rt2x00dev.c +++ b/drivers/net/wireless/rt2x00/rt2x00dev.c @@ -220,7 +220,8 @@ void rt2x00lib_txdone(struct queue_entry *entry, struct skb_frame_desc *skbdesc = get_skb_frame_desc(entry->skb); enum data_queue_qid qid = skb_get_queue_mapping(entry->skb); unsigned int header_length = ieee80211_get_hdrlen_from_skb(entry->skb); - u8 rate_idx, rate_flags; + u8 rate_idx, rate_flags, retry_rates; + unsigned int i; /* * Unmap the skb. @@ -259,16 +260,27 @@ void rt2x00lib_txdone(struct queue_entry *entry, rate_idx = skbdesc->tx_rate_idx; rate_flags = skbdesc->tx_rate_flags; + retry_rates = test_bit(TXDONE_FALLBACK, &txdesc->flags) ? + (txdesc->retry + 1) : 1; /* * Initialize TX status */ memset(&tx_info->status, 0, sizeof(tx_info->status)); tx_info->status.ack_signal = 0; - tx_info->status.rates[0].idx = rate_idx; - tx_info->status.rates[0].flags = rate_flags; - tx_info->status.rates[0].count = txdesc->retry + 1; - tx_info->status.rates[1].idx = -1; /* terminate */ + + /* + * Frame was send with retries, hardware tried + * different rates to send out the frame, at each + * retry it lowered the rate 1 step. + */ + for (i = 0; i < retry_rates && i < IEEE80211_TX_MAX_RATES; i++) { + tx_info->status.rates[i].idx = rate_idx - i; + tx_info->status.rates[i].flags = rate_flags; + tx_info->status.rates[i].count = 1; + } + if (i < (IEEE80211_TX_MAX_RATES -1)) + tx_info->status.rates[i].idx = -1; /* terminate */ if (!(tx_info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (test_bit(TXDONE_SUCCESS, &txdesc->flags) || diff --git a/drivers/net/wireless/rt2x00/rt2x00queue.h b/drivers/net/wireless/rt2x00/rt2x00queue.h index 47d175a13790..a5591fb2b191 100644 --- a/drivers/net/wireless/rt2x00/rt2x00queue.h +++ b/drivers/net/wireless/rt2x00/rt2x00queue.h @@ -214,6 +214,7 @@ struct rxdone_entry_desc { * * @TXDONE_UNKNOWN: Hardware could not determine success of transmission. * @TXDONE_SUCCESS: Frame was successfully send + * @TXDONE_FALLBACK: Frame was successfully send using a fallback rate. * @TXDONE_FAILURE: Frame was not successfully send * @TXDONE_EXCESSIVE_RETRY: In addition to &TXDONE_FAILURE, the * frame transmission failed due to excessive retries. @@ -221,6 +222,7 @@ struct rxdone_entry_desc { enum txdone_entry_desc_flags { TXDONE_UNKNOWN, TXDONE_SUCCESS, + TXDONE_FALLBACK, TXDONE_FAILURE, TXDONE_EXCESSIVE_RETRY, }; -- 2.20.1