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ath: move the rx bufsize to common to share with ath5k/ath9k 

This will also be used by ath9k_htc.

Signed-off-by: Luis R. Rodriguez <lrodriguez@atheros.com>
Signed-off-by: John W. Linville <linville@tuxdriver.com>
This commit is contained in:
Luis R. Rodriguez 2009-11-04 09:11:34 -08:00 committed by John W. Linville
parent 0a45da765e
commit cc861f7468
4 changed files with 36 additions and 24 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/wireless/ath/ath.h
View File

@ -87,6 +87,8 @@ struct ath_common {
u8 tx_chainmask;
u8 rx_chainmask;
u32 rx_bufsize;
struct ath_regulatory regulatory;
const struct ath_ops *ops;
const struct ath_bus_ops *bus_ops;

22
drivers/net/wireless/ath/ath5k/base.c
View File

@ -323,10 +323,13 @@ static inline void ath5k_txbuf_free(struct ath5k_softc *sc,
static inline void ath5k_rxbuf_free(struct ath5k_softc *sc,
struct ath5k_buf *bf)
{
struct ath5k_hw *ah = sc->ah;
struct ath_common *common = ath5k_hw_common(ah);
BUG_ON(!bf);
if (!bf->skb)
return;
pci_unmap_single(sc->pdev, bf->skbaddr, sc->rxbufsize,
pci_unmap_single(sc->pdev, bf->skbaddr, common->rx_bufsize,
PCI_DMA_FROMDEVICE);
dev_kfree_skb_any(bf->skb);
bf->skb = NULL;
@ -1181,17 +1184,18 @@ struct sk_buff *ath5k_rx_skb_alloc(struct ath5k_softc *sc, dma_addr_t *skb_addr)
* fake physical layer header at the start.
*/
skb = ath_rxbuf_alloc(common,
sc->rxbufsize + common->cachelsz - 1,
common->rx_bufsize + common->cachelsz - 1,
GFP_ATOMIC);
if (!skb) {
ATH5K_ERR(sc, "can't alloc skbuff of size %u\n",
sc->rxbufsize + common->cachelsz - 1);
common->rx_bufsize + common->cachelsz - 1);
return NULL;
}
*skb_addr = pci_map_single(sc->pdev,
skb->data, sc->rxbufsize, PCI_DMA_FROMDEVICE);
skb->data, common->rx_bufsize,
PCI_DMA_FROMDEVICE);
if (unlikely(pci_dma_mapping_error(sc->pdev, *skb_addr))) {
ATH5K_ERR(sc, "%s: DMA mapping failed\n", __func__);
dev_kfree_skb(skb);
@ -1631,10 +1635,10 @@ ath5k_rx_start(struct ath5k_softc *sc)
struct ath5k_buf *bf;
int ret;
sc->rxbufsize = roundup(IEEE80211_MAX_LEN, common->cachelsz);
common->rx_bufsize = roundup(IEEE80211_MAX_LEN, common->cachelsz);
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rxbufsize %u\n",
common->cachelsz, sc->rxbufsize);
ATH5K_DBG(sc, ATH5K_DEBUG_RESET, "cachelsz %u rx_bufsize %u\n",
common->cachelsz, common->rx_bufsize);
spin_lock_bh(&sc->rxbuflock);
sc->rxlink = NULL;
@ -1769,6 +1773,8 @@ ath5k_tasklet_rx(unsigned long data)
struct sk_buff *skb, *next_skb;
dma_addr_t next_skb_addr;
struct ath5k_softc *sc = (void *)data;
struct ath5k_hw *ah = sc->ah;
struct ath_common *common = ath5k_hw_common(ah);
struct ath5k_buf *bf;
struct ath5k_desc *ds;
int ret;
@ -1846,7 +1852,7 @@ accept:
if (!next_skb)
goto next;
pci_unmap_single(sc->pdev, bf->skbaddr, sc->rxbufsize,
pci_unmap_single(sc->pdev, bf->skbaddr, common->rx_bufsize,
PCI_DMA_FROMDEVICE);
skb_put(skb, rs.rs_datalen);

1
drivers/net/wireless/ath/ath9k/ath9k.h
View File

@ -323,7 +323,6 @@ struct ath_rx {
u8 defant;
u8 rxotherant;
u32 *rxlink;
int bufsize;
unsigned int rxfilter;
spinlock_t rxflushlock;
spinlock_t rxbuflock;

35
drivers/net/wireless/ath/ath9k/recv.c
View File

@ -48,6 +48,7 @@ static struct ieee80211_hw * ath_get_virt_hw(struct ath_softc *sc,
static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct ath_desc *ds;
struct sk_buff *skb;
@ -62,11 +63,13 @@ static void ath_rx_buf_link(struct ath_softc *sc, struct ath_buf *bf)
BUG_ON(skb == NULL);
ds->ds_vdata = skb->data;
/* setup rx descriptors. The rx.bufsize here tells the harware
/*
* setup rx descriptors. The rx_bufsize here tells the hardware
* how much data it can DMA to us and that we are prepared
* to process */
* to process
*/
ath9k_hw_setuprxdesc(ah, ds,
sc->rx.bufsize,
common->rx_bufsize,
0);
if (sc->rx.rxlink == NULL)
@ -344,11 +347,11 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
sc->sc_flags &= ~SC_OP_RXFLUSH;
spin_lock_init(&sc->rx.rxbuflock);
sc->rx.bufsize = roundup(IEEE80211_MAX_MPDU_LEN,
min(common->cachelsz, (u16)64));
common->rx_bufsize = roundup(IEEE80211_MAX_MPDU_LEN,
min(common->cachelsz, (u16)64));
ath_print(common, ATH_DBG_CONFIG, "cachelsz %u rxbufsize %u\n",
common->cachelsz, sc->rx.bufsize);
common->cachelsz, common->rx_bufsize);
/* Initialize rx descriptors */
@ -361,7 +364,7 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
}
list_for_each_entry(bf, &sc->rx.rxbuf, list) {
skb = ath_rxbuf_alloc(common, sc->rx.bufsize, GFP_KERNEL);
skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_KERNEL);
if (skb == NULL) {
error = -ENOMEM;
goto err;
@ -369,7 +372,7 @@ int ath_rx_init(struct ath_softc *sc, int nbufs)
bf->bf_mpdu = skb;
bf->bf_buf_addr = dma_map_single(sc->dev, skb->data,
sc->rx.bufsize,
common->rx_bufsize,
DMA_FROM_DEVICE);
if (unlikely(dma_mapping_error(sc->dev,
bf->bf_buf_addr))) {
@ -393,6 +396,8 @@ err:
void ath_rx_cleanup(struct ath_softc *sc)
{
struct ath_hw *ah = sc->sc_ah;
struct ath_common *common = ath9k_hw_common(ah);
struct sk_buff *skb;
struct ath_buf *bf;
@ -400,7 +405,7 @@ void ath_rx_cleanup(struct ath_softc *sc)
skb = bf->bf_mpdu;
if (skb) {
dma_unmap_single(sc->dev, bf->bf_buf_addr,
sc->rx.bufsize, DMA_FROM_DEVICE);
common->rx_bufsize, DMA_FROM_DEVICE);
dev_kfree_skb(skb);
}
}
@ -780,7 +785,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
* 2. requeueing the same buffer to h/w
*/
dma_sync_single_for_cpu(sc->dev, bf->bf_buf_addr,
sc->rx.bufsize,
common->rx_bufsize,
DMA_FROM_DEVICE);
hdr = (struct ieee80211_hdr *) skb->data;
@ -797,7 +802,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
goto requeue;
/* The status portion of the descriptor could get corrupted. */
if (sc->rx.bufsize < rx_stats->rs_datalen)
if (common->rx_bufsize < rx_stats->rs_datalen)
goto requeue;
if (!ath_rx_prepare(common, hw, skb, rx_stats,
@ -806,7 +811,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
/* Ensure we always have an skb to requeue once we are done
* processing the current buffer's skb */
requeue_skb = ath_rxbuf_alloc(common, sc->rx.bufsize, GFP_ATOMIC);
requeue_skb = ath_rxbuf_alloc(common, common->rx_bufsize, GFP_ATOMIC);
/* If there is no memory we ignore the current RX'd frame,
* tell hardware it can give us a new frame using the old
@ -817,7 +822,7 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
/* Unmap the frame */
dma_unmap_single(sc->dev, bf->bf_buf_addr,
sc->rx.bufsize,
common->rx_bufsize,
DMA_FROM_DEVICE);
skb_put(skb, rx_stats->rs_datalen);
@ -860,8 +865,8 @@ int ath_rx_tasklet(struct ath_softc *sc, int flush)
/* We will now give hardware our shiny new allocated skb */
bf->bf_mpdu = requeue_skb;
bf->bf_buf_addr = dma_map_single(sc->dev, requeue_skb->data,
sc->rx.bufsize,
DMA_FROM_DEVICE);
common->rx_bufsize,
DMA_FROM_DEVICE);
if (unlikely(dma_mapping_error(sc->dev,
bf->bf_buf_addr))) {
dev_kfree_skb_any(requeue_skb);