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ramips: collect rx related members to fe_rx_ring struct

Browse Source 
Signed-off-by: michael lee <igvtee@gmail.com>

SVN-Revision: 46295
This commit is contained in:
Felix Fietkau 2015-07-10 19:41:48 +00:00
parent 279be7be09
commit 1e6479aa87
3 changed files with 69 additions and 58 deletions
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4
target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_ethtool.c
View File

@ -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;
}

105
target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.c
View File

@ -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);

18
target/linux/ramips/files/drivers/net/ethernet/ralink/ralink_soc_eth.h
View File

@ -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[];