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rt2x00: provide separate information about TXWI & RXWI sizes
On new 2800 hardware sizes of TXWI & RXIW can be different than TXD & RXD sizes, so we need to difference between them. Let's define winfo_size as size of in buffer descriptor (TXWI & RXWI), and desc_size of as size of additional descriptor - in separate DMA coherent buffer for PCI hardware (TXD & RXD) and yet another in buffer descriptor for USB hardware (TXINFO & RXINFO). Change is rt2x00 wild, but should affect only 2800 driver. Patch also fix beaconing for 5592usb AP mode. Signed-off-by: Stanislaw Gruszka <stf_xl@wp.pl> Acked-by: Gertjan van Wingerde <gwingerde@gmail.com> Signed-off-by: John W. Linville <linville@tuxdriver.com>
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@ -676,6 +676,10 @@ void rt2800_process_rxwi(struct queue_entry *entry,
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* Convert descriptor AGC value to RSSI value.
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*/
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rxdesc->rssi = rt2800_agc_to_rssi(entry->queue->rt2x00dev, word);
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/*
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* Remove RXWI descriptor from start of the buffer.
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*/
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skb_pull(entry->skb, entry->queue->winfo_size);
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}
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EXPORT_SYMBOL_GPL(rt2800_process_rxwi);
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@ -766,6 +770,7 @@ void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
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unsigned int beacon_base;
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unsigned int padding_len;
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u32 orig_reg, reg;
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const int txwi_desc_size = entry->queue->winfo_size;
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/*
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* Disable beaconing while we are reloading the beacon data,
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@ -779,14 +784,14 @@ void rt2800_write_beacon(struct queue_entry *entry, struct txentry_desc *txdesc)
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/*
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* Add space for the TXWI in front of the skb.
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*/
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memset(skb_push(entry->skb, TXWI_DESC_SIZE), 0, TXWI_DESC_SIZE);
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memset(skb_push(entry->skb, txwi_desc_size), 0, txwi_desc_size);
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/*
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* Register descriptor details in skb frame descriptor.
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*/
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skbdesc->flags |= SKBDESC_DESC_IN_SKB;
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skbdesc->desc = entry->skb->data;
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skbdesc->desc_len = TXWI_DESC_SIZE;
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skbdesc->desc_len = txwi_desc_size;
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/*
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* Add the TXWI for the beacon to the skb.
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@ -832,13 +837,14 @@ static inline void rt2800_clear_beacon_register(struct rt2x00_dev *rt2x00dev,
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unsigned int beacon_base)
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{
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int i;
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const int txwi_desc_size = rt2x00dev->ops->bcn->winfo_size;
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/*
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* For the Beacon base registers we only need to clear
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* the whole TXWI which (when set to 0) will invalidate
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* the entire beacon.
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*/
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for (i = 0; i < TXWI_DESC_SIZE; i += sizeof(__le32))
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for (i = 0; i < txwi_desc_size; i += sizeof(__le32))
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rt2800_register_write(rt2x00dev, beacon_base + i, 0);
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}
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@ -735,11 +735,6 @@ static void rt2800pci_fill_rxdone(struct queue_entry *entry,
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* Process the RXWI structure that is at the start of the buffer.
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*/
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rt2800_process_rxwi(entry, rxdesc);
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/*
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* Remove RXWI descriptor from start of buffer.
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*/
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skb_pull(entry->skb, RXWI_DESC_SIZE);
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}
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/*
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@ -1197,6 +1192,7 @@ static const struct data_queue_desc rt2800pci_queue_rx = {
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.entry_num = 128,
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.data_size = AGGREGATION_SIZE,
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.desc_size = RXD_DESC_SIZE,
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.winfo_size = RXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_mmio),
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};
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@ -1204,13 +1200,15 @@ static const struct data_queue_desc rt2800pci_queue_tx = {
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.entry_num = 64,
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.data_size = AGGREGATION_SIZE,
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.desc_size = TXD_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_mmio),
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};
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static const struct data_queue_desc rt2800pci_queue_bcn = {
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.entry_num = 8,
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.data_size = 0, /* No DMA required for beacons */
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.desc_size = TXWI_DESC_SIZE,
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.desc_size = TXD_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_mmio),
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};
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@ -485,7 +485,7 @@ static void rt2800usb_write_tx_desc(struct queue_entry *entry,
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*/
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skbdesc->flags |= SKBDESC_DESC_IN_SKB;
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skbdesc->desc = txi;
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skbdesc->desc_len = entry->queue->desc_size;
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skbdesc->desc_len = TXINFO_DESC_SIZE + entry->queue->winfo_size;
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}
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/*
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@ -730,11 +730,6 @@ static void rt2800usb_fill_rxdone(struct queue_entry *entry,
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* Process the RXWI structure.
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*/
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rt2800_process_rxwi(entry, rxdesc);
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/*
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* Remove RXWI descriptor from start of buffer.
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*/
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skb_pull(entry->skb, entry->queue->desc_size - RXINFO_DESC_SIZE);
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}
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/*
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@ -858,21 +853,24 @@ static const struct rt2x00lib_ops rt2800usb_rt2x00_ops = {
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static const struct data_queue_desc rt2800usb_queue_rx = {
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.entry_num = 128,
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.data_size = AGGREGATION_SIZE,
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.desc_size = RXINFO_DESC_SIZE + RXWI_DESC_SIZE,
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.desc_size = RXINFO_DESC_SIZE,
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.winfo_size = RXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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static const struct data_queue_desc rt2800usb_queue_tx = {
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.entry_num = 16,
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.data_size = AGGREGATION_SIZE,
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.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
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.desc_size = TXINFO_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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static const struct data_queue_desc rt2800usb_queue_bcn = {
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.entry_num = 8,
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.data_size = MGMT_FRAME_SIZE,
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.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE,
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.desc_size = TXINFO_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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@ -898,21 +896,24 @@ static const struct rt2x00_ops rt2800usb_ops = {
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static const struct data_queue_desc rt2800usb_queue_rx_5592 = {
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.entry_num = 128,
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.data_size = AGGREGATION_SIZE,
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.desc_size = RXINFO_DESC_SIZE + RXWI_DESC_SIZE_5592,
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.desc_size = RXINFO_DESC_SIZE,
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.winfo_size = RXWI_DESC_SIZE_5592,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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static const struct data_queue_desc rt2800usb_queue_tx_5592 = {
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.entry_num = 16,
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.data_size = AGGREGATION_SIZE,
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.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE_5592,
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.desc_size = TXINFO_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE_5592,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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static const struct data_queue_desc rt2800usb_queue_bcn_5592 = {
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.entry_num = 8,
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.data_size = MGMT_FRAME_SIZE,
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.desc_size = TXINFO_DESC_SIZE + TXWI_DESC_SIZE_5592,
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.desc_size = TXINFO_DESC_SIZE,
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.winfo_size = TXWI_DESC_SIZE_5592,
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.priv_size = sizeof(struct queue_entry_priv_usb),
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};
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@ -35,7 +35,8 @@
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struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp)
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{
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struct rt2x00_dev *rt2x00dev = entry->queue->rt2x00dev;
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struct data_queue *queue = entry->queue;
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struct rt2x00_dev *rt2x00dev = queue->rt2x00dev;
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struct sk_buff *skb;
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struct skb_frame_desc *skbdesc;
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unsigned int frame_size;
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@ -46,7 +47,7 @@ struct sk_buff *rt2x00queue_alloc_rxskb(struct queue_entry *entry, gfp_t gfp)
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* The frame size includes descriptor size, because the
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* hardware directly receive the frame into the skbuffer.
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*/
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frame_size = entry->queue->data_size + entry->queue->desc_size;
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frame_size = queue->data_size + queue->desc_size + queue->winfo_size;
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/*
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* The payload should be aligned to a 4-byte boundary,
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@ -1172,6 +1173,7 @@ static int rt2x00queue_alloc_entries(struct data_queue *queue,
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queue->threshold = DIV_ROUND_UP(qdesc->entry_num, 10);
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queue->data_size = qdesc->data_size;
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queue->desc_size = qdesc->desc_size;
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queue->winfo_size = qdesc->winfo_size;
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/*
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* Allocate all queue entries.
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@ -479,7 +479,8 @@ struct data_queue {
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unsigned short cw_max;
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unsigned short data_size;
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unsigned short desc_size;
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unsigned char desc_size;
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unsigned char winfo_size;
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unsigned short usb_endpoint;
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unsigned short usb_maxpacket;
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@ -499,7 +500,8 @@ struct data_queue {
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struct data_queue_desc {
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unsigned short entry_num;
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unsigned short data_size;
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unsigned short desc_size;
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unsigned char desc_size;
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unsigned char winfo_size;
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unsigned short priv_size;
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};
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