From 33e611690e6478ebb095e4eb755010343374a2a3 Mon Sep 17 00:00:00 2001 From: Vladimir Kondratiev Date: Thu, 18 Apr 2013 14:33:50 +0300 Subject: wil6210: Use cached copy of Rx descriptor Rx descriptors stored in non-cacheable memory area for DMA. Non-cacheable memory causes long access time from CPU. Copy rx descriptor to the skb->cb, and use this copy. It provides faster memory access, and will be usefull to keep Rx information for later processing (BACK reorder) Signed-off-by: Vladimir Kondratiev Signed-off-by: John W. Linville --- drivers/net/wireless/ath/wil6210/txrx.h | 13 +++++++++---- 1 file changed, 9 insertions(+), 4 deletions(-) (limited to 'drivers/net/wireless/ath/wil6210/txrx.h') diff --git a/drivers/net/wireless/ath/wil6210/txrx.h b/drivers/net/wireless/ath/wil6210/txrx.h index 45a61f597c5c..f0cc48afd861 100644 --- a/drivers/net/wireless/ath/wil6210/txrx.h +++ b/drivers/net/wireless/ath/wil6210/txrx.h @@ -339,24 +339,29 @@ union vring_desc { struct vring_rx_desc rx; } __packed; -static inline int wil_rxdesc_phy_length(volatile struct vring_rx_desc *d) +static inline int wil_rxdesc_phy_length(struct vring_rx_desc *d) { return WIL_GET_BITS(d->dma.d0, 16, 29); } -static inline int wil_rxdesc_mcs(volatile struct vring_rx_desc *d) +static inline int wil_rxdesc_mcs(struct vring_rx_desc *d) { return WIL_GET_BITS(d->mac.d1, 21, 24); } -static inline int wil_rxdesc_ds_bits(volatile struct vring_rx_desc *d) +static inline int wil_rxdesc_ds_bits(struct vring_rx_desc *d) { return WIL_GET_BITS(d->mac.d1, 8, 9); } -static inline int wil_rxdesc_ftype(volatile struct vring_rx_desc *d) +static inline int wil_rxdesc_ftype(struct vring_rx_desc *d) { return WIL_GET_BITS(d->mac.d0, 10, 11); } +static inline struct vring_rx_desc *wil_skb_rxdesc(struct sk_buff *skb) +{ + return (void *)skb->cb; +} + #endif /* WIL6210_TXRX_H */ -- cgit