From: Felix Fietkau Date: Fri, 10 Jul 2015 19:41:48 +0000 (+0000) Subject: ramips: collect rx related members to fe_rx_ring struct X-Git-Url: http://git.lede-project.org./?a=commitdiff_plain;h=1e6479aa873a42c2afbb68762383011623650dab;p=openwrt%2Fstaging%2Fstintel.git ramips: collect rx related members to fe_rx_ring struct Signed-off-by: michael lee SVN-Revision: 46295 --- diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_ethtool.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_ethtool.c index 93cbcb9433..e95a173955 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_ethtool.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_ethtool.c @@ -145,7 +145,7 @@ static int fe_set_ringparam(struct net_device *dev, dev->netdev_ops->ndo_stop(dev); priv->tx_ring.tx_ring_size = BIT(fls(ring->tx_pending) - 1); - priv->rx_ring_size = BIT(fls(ring->rx_pending) - 1); + priv->rx_ring.rx_ring_size = BIT(fls(ring->rx_pending) - 1); dev->netdev_ops->ndo_open(dev); @@ -159,7 +159,7 @@ static void fe_get_ringparam(struct net_device *dev, ring->rx_max_pending = MAX_DMA_DESC; ring->tx_max_pending = MAX_DMA_DESC; - ring->rx_pending = priv->rx_ring_size; + ring->rx_pending = priv->rx_ring.rx_ring_size; ring->tx_pending = priv->tx_ring.tx_ring_size; } diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c index 4b398252c7..db6b1977f8 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c @@ -57,7 +57,7 @@ #define TX_DMA_DESP2_DEF (TX_DMA_LS0 | TX_DMA_DONE) #define TX_DMA_DESP4_DEF (TX_DMA_QN(3) | TX_DMA_PN(1)) #define NEXT_TX_DESP_IDX(X) (((X) + 1) & (ring->tx_ring_size - 1)) -#define NEXT_RX_DESP_IDX(X) (((X) + 1) & (priv->rx_ring_size - 1)) +#define NEXT_RX_DESP_IDX(X) (((X) + 1) & (ring->rx_ring_size - 1)) #define SYSC_REG_RSTCTRL 0x34 @@ -202,77 +202,80 @@ static inline void fe_set_txd(struct fe_tx_dma *txd, struct fe_tx_dma *dma_txd) static void fe_clean_rx(struct fe_priv *priv) { int i; + struct fe_rx_ring *ring = &priv->rx_ring; - if (priv->rx_data) { - for (i = 0; i < priv->rx_ring_size; i++) - if (priv->rx_data[i]) { - if (priv->rx_dma && priv->rx_dma[i].rxd1) + if (ring->rx_data) { + for (i = 0; i < ring->rx_ring_size; i++) + if (ring->rx_data[i]) { + if (ring->rx_dma && ring->rx_dma[i].rxd1) dma_unmap_single(&priv->netdev->dev, - priv->rx_dma[i].rxd1, - priv->rx_buf_size, + ring->rx_dma[i].rxd1, + ring->rx_buf_size, DMA_FROM_DEVICE); - put_page(virt_to_head_page(priv->rx_data[i])); + put_page(virt_to_head_page(ring->rx_data[i])); } - kfree(priv->rx_data); - priv->rx_data = NULL; + kfree(ring->rx_data); + ring->rx_data = NULL; } - if (priv->rx_dma) { + if (ring->rx_dma) { dma_free_coherent(&priv->netdev->dev, - priv->rx_ring_size * sizeof(*priv->rx_dma), - priv->rx_dma, - priv->rx_phys); - priv->rx_dma = NULL; + ring->rx_ring_size * sizeof(*ring->rx_dma), + ring->rx_dma, + ring->rx_phys); + ring->rx_dma = NULL; } } static int fe_alloc_rx(struct fe_priv *priv) { struct net_device *netdev = priv->netdev; + struct fe_rx_ring *ring = &priv->rx_ring; int i, pad; - priv->rx_data = kcalloc(priv->rx_ring_size, sizeof(*priv->rx_data), + ring->rx_data = kcalloc(ring->rx_ring_size, sizeof(*ring->rx_data), GFP_KERNEL); - if (!priv->rx_data) + if (!ring->rx_data) goto no_rx_mem; - for (i = 0; i < priv->rx_ring_size; i++) { - priv->rx_data[i] = netdev_alloc_frag(priv->frag_size); - if (!priv->rx_data[i]) + for (i = 0; i < ring->rx_ring_size; i++) { + ring->rx_data[i] = netdev_alloc_frag(ring->frag_size); + if (!ring->rx_data[i]) goto no_rx_mem; } - priv->rx_dma = dma_alloc_coherent(&netdev->dev, - priv->rx_ring_size * sizeof(*priv->rx_dma), - &priv->rx_phys, + ring->rx_dma = dma_alloc_coherent(&netdev->dev, + ring->rx_ring_size * sizeof(*ring->rx_dma), + &ring->rx_phys, GFP_ATOMIC | __GFP_ZERO); - if (!priv->rx_dma) + if (!ring->rx_dma) goto no_rx_mem; if (priv->flags & FE_FLAG_RX_2B_OFFSET) pad = 0; else pad = NET_IP_ALIGN; - for (i = 0; i < priv->rx_ring_size; i++) { + for (i = 0; i < ring->rx_ring_size; i++) { dma_addr_t dma_addr = dma_map_single(&netdev->dev, - priv->rx_data[i] + NET_SKB_PAD + pad, - priv->rx_buf_size, + ring->rx_data[i] + NET_SKB_PAD + pad, + ring->rx_buf_size, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) goto no_rx_mem; - priv->rx_dma[i].rxd1 = (unsigned int) dma_addr; + ring->rx_dma[i].rxd1 = (unsigned int) dma_addr; if (priv->flags & FE_FLAG_RX_SG_DMA) - priv->rx_dma[i].rxd2 = RX_DMA_PLEN0(priv->rx_buf_size); + ring->rx_dma[i].rxd2 = RX_DMA_PLEN0(ring->rx_buf_size); else - priv->rx_dma[i].rxd2 = RX_DMA_LSO; + ring->rx_dma[i].rxd2 = RX_DMA_LSO; } + ring->rx_calc_idx = ring->rx_ring_size - 1; wmb(); - fe_reg_w32(priv->rx_phys, FE_REG_RX_BASE_PTR0); - fe_reg_w32(priv->rx_ring_size, FE_REG_RX_MAX_CNT0); - fe_reg_w32((priv->rx_ring_size - 1), FE_REG_RX_CALC_IDX0); + fe_reg_w32(ring->rx_phys, FE_REG_RX_BASE_PTR0); + fe_reg_w32(ring->rx_ring_size, FE_REG_RX_MAX_CNT0); + fe_reg_w32(ring->rx_calc_idx, FE_REG_RX_CALC_IDX0); fe_reg_w32(FE_PST_DRX_IDX0, FE_REG_PDMA_RST_CFG); return 0; @@ -791,8 +794,9 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, struct net_device *netdev = priv->netdev; struct net_device_stats *stats = &netdev->stats; struct fe_soc_data *soc = priv->soc; + struct fe_rx_ring *ring = &priv->rx_ring; + int idx = ring->rx_calc_idx; u32 checksum_bit; - int idx = fe_reg_r32(FE_REG_RX_CALC_IDX0); struct sk_buff *skb; u8 *data, *new_data; struct fe_rx_dma *rxd, trxd; @@ -813,22 +817,22 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, unsigned int pktlen; dma_addr_t dma_addr; idx = NEXT_RX_DESP_IDX(idx); - rxd = &priv->rx_dma[idx]; - data = priv->rx_data[idx]; + rxd = &ring->rx_dma[idx]; + data = ring->rx_data[idx]; fe_get_rxd(&trxd, rxd); if (!(trxd.rxd2 & RX_DMA_DONE)) break; /* alloc new buffer */ - new_data = netdev_alloc_frag(priv->frag_size); + new_data = netdev_alloc_frag(ring->frag_size); if (unlikely(!new_data)) { stats->rx_dropped++; goto release_desc; } dma_addr = dma_map_single(&netdev->dev, new_data + NET_SKB_PAD + pad, - priv->rx_buf_size, + ring->rx_buf_size, DMA_FROM_DEVICE); if (unlikely(dma_mapping_error(&netdev->dev, dma_addr))) { put_page(virt_to_head_page(new_data)); @@ -836,7 +840,7 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, } /* receive data */ - skb = build_skb(data, priv->frag_size); + skb = build_skb(data, ring->frag_size); if (unlikely(!skb)) { put_page(virt_to_head_page(new_data)); goto release_desc; @@ -844,7 +848,7 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, skb_reserve(skb, NET_SKB_PAD + NET_IP_ALIGN); dma_unmap_single(&netdev->dev, trxd.rxd1, - priv->rx_buf_size, DMA_FROM_DEVICE); + ring->rx_buf_size, DMA_FROM_DEVICE); pktlen = RX_DMA_PLEN0(trxd.rxd2); skb->dev = netdev; skb_put(skb, pktlen); @@ -862,17 +866,18 @@ static int fe_poll_rx(struct napi_struct *napi, int budget, napi_gro_receive(napi, skb); - priv->rx_data[idx] = new_data; + ring->rx_data[idx] = new_data; rxd->rxd1 = (unsigned int) dma_addr; release_desc: if (priv->flags & FE_FLAG_RX_SG_DMA) - rxd->rxd2 = RX_DMA_PLEN0(priv->rx_buf_size); + rxd->rxd2 = RX_DMA_PLEN0(ring->rx_buf_size); else rxd->rxd2 = RX_DMA_LSO; + ring->rx_calc_idx = idx; wmb(); - fe_reg_w32(idx, FE_REG_RX_CALC_IDX0); + fe_reg_w32(ring->rx_calc_idx, FE_REG_RX_CALC_IDX0); done++; } @@ -1342,10 +1347,10 @@ static int fe_change_mtu(struct net_device *dev, int new_mtu) return 0; if (new_mtu <= ETH_DATA_LEN) - priv->frag_size = fe_max_frag_size(ETH_DATA_LEN); + priv->rx_ring.frag_size = fe_max_frag_size(ETH_DATA_LEN); else - priv->frag_size = PAGE_SIZE; - priv->rx_buf_size = fe_max_buf_size(priv->frag_size); + priv->rx_ring.frag_size = PAGE_SIZE; + priv->rx_ring.rx_buf_size = fe_max_buf_size(priv->rx_ring.frag_size); if (!netif_running(dev)) return 0; @@ -1497,16 +1502,16 @@ static int fe_probe(struct platform_device *pdev) priv->device = &pdev->dev; priv->soc = soc; priv->msg_enable = netif_msg_init(fe_msg_level, FE_DEFAULT_MSG_ENABLE); - priv->frag_size = fe_max_frag_size(ETH_DATA_LEN); - priv->rx_buf_size = fe_max_buf_size(priv->frag_size); - priv->tx_ring.tx_ring_size = priv->rx_ring_size = NUM_DMA_DESC; + priv->rx_ring.frag_size = fe_max_frag_size(ETH_DATA_LEN); + priv->rx_ring.rx_buf_size = fe_max_buf_size(priv->rx_ring.frag_size); + priv->tx_ring.tx_ring_size = priv->rx_ring.rx_ring_size = NUM_DMA_DESC; INIT_WORK(&priv->pending_work, fe_pending_work); napi_weight = 32; if (priv->flags & FE_FLAG_NAPI_WEIGHT) { napi_weight *= 4; priv->tx_ring.tx_ring_size *= 4; - priv->rx_ring_size *= 4; + priv->rx_ring.rx_ring_size *= 4; } netif_napi_add(netdev, &priv->rx_napi, fe_poll, napi_weight); fe_set_ethtool_ops(netdev); diff --git a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h index 5d4220f421..78e04b025e 100644 --- a/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h +++ b/target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h @@ -465,6 +465,17 @@ struct fe_tx_ring u16 tx_thresh; }; +struct fe_rx_ring +{ + struct fe_rx_dma *rx_dma; + u8 **rx_data; + dma_addr_t rx_phys; + u16 rx_ring_size; + u16 frag_size; + u16 rx_buf_size; + u16 rx_calc_idx; +}; + struct fe_priv { spinlock_t page_lock; @@ -477,11 +488,7 @@ struct fe_priv struct device *device; unsigned long sysclk; - u16 frag_size; - u16 rx_buf_size; - struct fe_rx_dma *rx_dma; - u8 **rx_data; - dma_addr_t rx_phys; + struct fe_rx_ring rx_ring; struct napi_struct rx_napi; struct fe_tx_ring tx_ring; @@ -497,7 +504,6 @@ struct fe_priv unsigned long vlan_map; struct work_struct pending_work; DECLARE_BITMAP(pending_flags, FE_FLAG_MAX); - u16 rx_ring_size; }; extern const struct of_device_id of_fe_match[];