From aaa1553512b9105699113ea7e2ea726f3d9d4de2 Mon Sep 17 00:00:00 2001 From: Christian Lamparter Date: Sat, 9 Aug 2008 19:20:47 -0500 Subject: [PATCH] p54: Fix regression due to "net: Delete NETDEVICES_MULTIQUEUE kconfig option" Commit b19fa1f, entitled "net: Delete NETDEVICES_MULTIQUEUE kconfig option" breaks p54pci and p54usb. Additionally, the old logic always tx'ed cts frames (if enabled) with a short preamble when [rate > 3]. (i.e. with any 802.11g rate). Of course this isn't that bad, but it's still wrong! (This patch also clarifies the meanings of some of the fields in the tx header for the hardware. -- JWL) Signed-off-by: Christian Lamparter Acked-by: Larry Finger Cc: [2.6.25.x, 2.6.26.x] Signed-off-by: John W. Linville --- drivers/net/wireless/p54/p54common.c | 31 ++++++++++++++-------------- drivers/net/wireless/p54/p54common.h | 18 ++++++++-------- 2 files changed, 25 insertions(+), 24 deletions(-) diff --git a/drivers/net/wireless/p54/p54common.c b/drivers/net/wireless/p54/p54common.c index 83cd85e1f8..49afd20d2c 100644 --- a/drivers/net/wireless/p54/p54common.c +++ b/drivers/net/wireless/p54/p54common.c @@ -413,12 +413,12 @@ static void p54_rx_frame_sent(struct ieee80211_hw *dev, struct sk_buff *skb) last_addr = range->end_addr; __skb_unlink(entry, &priv->tx_queue); memset(&info->status, 0, sizeof(info->status)); - priv->tx_stats[skb_get_queue_mapping(skb)].len--; entry_hdr = (struct p54_control_hdr *) entry->data; entry_data = (struct p54_tx_control_allocdata *) entry_hdr->data; if ((entry_hdr->magic1 & cpu_to_le16(0x4000)) != 0) pad = entry_data->align[0]; + priv->tx_stats[entry_data->hw_queue - 4].len--; if (!(info->flags & IEEE80211_TX_CTL_NO_ACK)) { if (!(payload->status & 0x01)) info->flags |= IEEE80211_TX_STAT_ACK; @@ -557,6 +557,7 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) struct p54_tx_control_allocdata *txhdr; size_t padding, len; u8 rate; + u8 cts_rate = 0x20; current_queue = &priv->tx_stats[skb_get_queue_mapping(skb)]; if (unlikely(current_queue->len > current_queue->limit)) @@ -581,28 +582,28 @@ static int p54_tx(struct ieee80211_hw *dev, struct sk_buff *skb) hdr->type = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? 0 : cpu_to_le16(1); hdr->retry1 = hdr->retry2 = info->control.retry_limit; - memset(txhdr->wep_key, 0x0, 16); - txhdr->padding = 0; - txhdr->padding2 = 0; - /* TODO: add support for alternate retry TX rates */ rate = ieee80211_get_tx_rate(dev, info)->hw_value; - if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) + if (info->flags & IEEE80211_TX_CTL_SHORT_PREAMBLE) { rate |= 0x10; - if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) + cts_rate |= 0x10; + } + if (info->flags & IEEE80211_TX_CTL_USE_RTS_CTS) { rate |= 0x40; - else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) + cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; + } else if (info->flags & IEEE80211_TX_CTL_USE_CTS_PROTECT) { rate |= 0x20; + cts_rate |= ieee80211_get_rts_cts_rate(dev, info)->hw_value; + } memset(txhdr->rateset, rate, 8); - txhdr->wep_key_present = 0; - txhdr->wep_key_len = 0; - txhdr->frame_type = cpu_to_le32(skb_get_queue_mapping(skb) + 4); - txhdr->magic4 = 0; - txhdr->antenna = (info->antenna_sel_tx == 0) ? + txhdr->key_type = 0; + txhdr->key_len = 0; + txhdr->hw_queue = skb_get_queue_mapping(skb) + 4; + txhdr->tx_antenna = (info->antenna_sel_tx == 0) ? 2 : info->antenna_sel_tx - 1; txhdr->output_power = 0x7f; // HW Maximum - txhdr->magic5 = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? - 0 : ((rate > 0x3) ? cpu_to_le32(0x33) : cpu_to_le32(0x23)); + txhdr->cts_rate = (info->flags & IEEE80211_TX_CTL_NO_ACK) ? + 0 : cts_rate; if (padding) txhdr->align[0] = padding; diff --git a/drivers/net/wireless/p54/p54common.h b/drivers/net/wireless/p54/p54common.h index 2245fcce92..8db6c0e8e5 100644 --- a/drivers/net/wireless/p54/p54common.h +++ b/drivers/net/wireless/p54/p54common.h @@ -183,16 +183,16 @@ struct p54_frame_sent_hdr { struct p54_tx_control_allocdata { u8 rateset[8]; - u16 padding; - u8 wep_key_present; - u8 wep_key_len; - u8 wep_key[16]; - __le32 frame_type; - u32 padding2; - __le16 magic4; - u8 antenna; + u8 unalloc0[2]; + u8 key_type; + u8 key_len; + u8 key[16]; + u8 hw_queue; + u8 unalloc1[9]; + u8 tx_antenna; u8 output_power; - __le32 magic5; + u8 cts_rate; + u8 unalloc2[3]; u8 align[0]; } __attribute__ ((packed)); -- 2.39.5