diff options
| author | Joao Pinto <Joao.Pinto@synopsys.com> | 2017-03-17 19:11:05 +0300 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2017-03-22 03:24:01 +0300 |
| commit | aff3d9eff84399e433c4aca65a9bb236581bc082 (patch) | |
| tree | a71f2227169e81e454a6a1d040a612e6d59d6d3a /drivers/net/ethernet/stmicro/stmmac/stmmac.h | |
| parent | de6b08fd82087778c579dc3f3c28bb1c878a993a (diff) | |
| download | linux-aff3d9eff84399e433c4aca65a9bb236581bc082.tar.xz | |
net: stmmac: enable multiple buffers
This patch creates 2 new structures (stmmac_tx_queue and stmmac_rx_queue)
in include/linux/stmmac.h, enabling that each RX and TX queue has its
own buffers and data.
Signed-off-by: Joao Pinto <jpinto@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/stmicro/stmmac/stmmac.h')
| -rw-r--r-- | drivers/net/ethernet/stmicro/stmmac/stmmac.h | 49 |
1 files changed, 35 insertions, 14 deletions
diff --git a/drivers/net/ethernet/stmicro/stmmac/stmmac.h b/drivers/net/ethernet/stmicro/stmmac/stmmac.h index cd8fb619b1e9..6ec671c9be84 100644 --- a/drivers/net/ethernet/stmicro/stmmac/stmmac.h +++ b/drivers/net/ethernet/stmicro/stmmac/stmmac.h @@ -46,6 +46,35 @@ struct stmmac_tx_info { bool is_jumbo; }; +/* Frequently used values are kept adjacent for cache effect */ +struct stmmac_tx_queue { + u32 queue_index; + struct stmmac_priv *priv_data; + struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; + struct dma_desc *dma_tx; + struct sk_buff **tx_skbuff; + struct stmmac_tx_info *tx_skbuff_dma; + unsigned int cur_tx; + unsigned int dirty_tx; + dma_addr_t dma_tx_phy; + u32 tx_tail_addr; +}; + +struct stmmac_rx_queue { + u32 queue_index; + struct stmmac_priv *priv_data; + struct dma_extended_desc *dma_erx; + struct dma_desc *dma_rx ____cacheline_aligned_in_smp; + struct sk_buff **rx_skbuff; + dma_addr_t *rx_skbuff_dma; + struct napi_struct napi ____cacheline_aligned_in_smp; + unsigned int cur_rx; + unsigned int dirty_rx; + u32 rx_zeroc_thresh; + dma_addr_t dma_rx_phy; + u32 rx_tail_addr; +}; + struct stmmac_priv { /* Frequently used values are kept adjacent for cache effect */ struct dma_extended_desc *dma_etx ____cacheline_aligned_in_smp; @@ -56,28 +85,22 @@ struct stmmac_priv { u32 tx_count_frames; u32 tx_coal_frames; u32 tx_coal_timer; - struct stmmac_tx_info *tx_skbuff_dma; - dma_addr_t dma_tx_phy; int tx_coalesce; int hwts_tx_en; bool tx_path_in_lpi_mode; struct timer_list txtimer; bool tso; - struct dma_desc *dma_rx ____cacheline_aligned_in_smp; - struct dma_extended_desc *dma_erx; - struct sk_buff **rx_skbuff; - unsigned int cur_rx; - unsigned int dirty_rx; + /* TX Queue */ + struct stmmac_tx_queue *tx_queue; + + /* RX Queue */ + struct stmmac_rx_queue *rx_queue; + unsigned int dma_buf_sz; unsigned int rx_copybreak; - unsigned int rx_zeroc_thresh; u32 rx_riwt; int hwts_rx_en; - dma_addr_t *rx_skbuff_dma; - dma_addr_t dma_rx_phy; - - struct napi_struct napi ____cacheline_aligned_in_smp; void __iomem *ioaddr; struct net_device *dev; @@ -119,8 +142,6 @@ struct stmmac_priv { spinlock_t ptp_lock; void __iomem *mmcaddr; void __iomem *ptpaddr; - u32 rx_tail_addr; - u32 tx_tail_addr; u32 mss; #ifdef CONFIG_DEBUG_FS |