diff options
| author | Jiangfeng Xiao <xiaojiangfeng@huawei.com> | 2019-07-09 11:31:09 +0800 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-09 14:29:26 -0700 |
| commit | b9162d20ed493bc0d5ea3016647d636628e1f9d5 (patch) | |
| tree | 58833787af6f890a82143c2e6d42b3895caa1220 /drivers/net | |
| parent | 06ddc0d8d7fc43d872c3d1c9399050e40ddbec4d (diff) | |
| download | linux-b9162d20ed493bc0d5ea3016647d636628e1f9d5.tar.bz2 | |
net: hisilicon: Offset buf address to adapt HI13X1_GMAC
The buf unit size of HI13X1_GMAC is cache_line_size,
which is 64, so the address we write to the buf register
needs to be shifted right by 6 bits.
The 31st bit of the PPE_CFG_CPU_ADD_ADDR register
of HI13X1_GMAC indicates whether to release the buffer
of the message, and the low indicates that it is valid.
Signed-off-by: Jiangfeng Xiao <xiaojiangfeng@huawei.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net')
| -rw-r--r-- | drivers/net/ethernet/hisilicon/hip04_eth.c | 20 |
1 files changed, 17 insertions, 3 deletions
diff --git a/drivers/net/ethernet/hisilicon/hip04_eth.c b/drivers/net/ethernet/hisilicon/hip04_eth.c index 53282199bb54..c578934a2336 100644 --- a/drivers/net/ethernet/hisilicon/hip04_eth.c +++ b/drivers/net/ethernet/hisilicon/hip04_eth.c @@ -120,12 +120,20 @@ #define PPE_CFG_STS_RX_PKT_CNT_RC BIT(0) #define PPE_CFG_QOS_VMID_MODE BIT(15) #define PPE_CFG_BUS_LOCAL_REL (BIT(9) | BIT(15) | BIT(19) | BIT(23)) + +/* buf unit size is cache_line_size, which is 64, so the shift is 6 */ +#define PPE_BUF_SIZE_SHIFT 6 +#define PPE_TX_BUF_HOLD BIT(31) #else #define PPE_CFG_QOS_VMID_GRP_SHIFT 8 #define PPE_CFG_RX_CTRL_ALIGN_SHIFT 11 #define PPE_CFG_STS_RX_PKT_CNT_RC BIT(12) #define PPE_CFG_QOS_VMID_MODE BIT(14) #define PPE_CFG_BUS_LOCAL_REL BIT(14) + +/* buf unit size is 1, so the shift is 6 */ +#define PPE_BUF_SIZE_SHIFT 0 +#define PPE_TX_BUF_HOLD 0 #endif /* CONFIG_HI13X1_GMAC */ #define PPE_CFG_RX_FIFO_FSFU BIT(11) @@ -286,7 +294,7 @@ static void hip04_config_fifo(struct hip04_priv *priv) val |= PPE_CFG_QOS_VMID_MODE; writel_relaxed(val, priv->base + PPE_CFG_QOS_VMID_GEN); - val = RX_BUF_SIZE; + val = RX_BUF_SIZE >> PPE_BUF_SIZE_SHIFT; regmap_write(priv->map, priv->port * 4 + PPE_CFG_RX_BUF_SIZE, val); val = RX_DESC_NUM << PPE_CFG_RX_DEPTH_SHIFT; @@ -369,12 +377,18 @@ static void hip04_mac_disable(struct net_device *ndev) static void hip04_set_xmit_desc(struct hip04_priv *priv, dma_addr_t phys) { - writel(phys, priv->base + PPE_CFG_CPU_ADD_ADDR); + u32 val; + + val = phys >> PPE_BUF_SIZE_SHIFT | PPE_TX_BUF_HOLD; + writel(val, priv->base + PPE_CFG_CPU_ADD_ADDR); } static void hip04_set_recv_desc(struct hip04_priv *priv, dma_addr_t phys) { - regmap_write(priv->map, priv->port * 4 + PPE_CFG_RX_ADDR, phys); + u32 val; + + val = phys >> PPE_BUF_SIZE_SHIFT; + regmap_write(priv->map, priv->port * 4 + PPE_CFG_RX_ADDR, val); } static u32 hip04_recv_cnt(struct hip04_priv *priv) |