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net: stmmac: Add ethtool register dump for XGMAC cores 

Add the ethtool interface to dump the register map in XGMAC cores.

Changes from v2:
	- Remove uneeded memset (Jakub)

Signed-off-by: Jose Abreu <joabreu@synopsys.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Jose Abreu 2019-08-17 20:54:46 +02:00 committed by David S. Miller
parent 95eaf3cd0a
commit bfc5653069
4 changed files with 37 additions and 9 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

2
drivers/net/ethernet/stmicro/stmmac/dwxgmac2.h
View File

@ -244,6 +244,7 @@
#define XGMAC_RXOVFIS BIT(16)
#define XGMAC_ABPSIS BIT(1)
#define XGMAC_TXUNFIS BIT(0)
#define XGMAC_MAC_REGSIZE (XGMAC_MTL_QINT_STATUS(15) / 4)
/* DMA Registers */
#define XGMAC_DMA_MODE 0x00003000
@ -321,6 +322,7 @@
#define XGMAC_TBU BIT(2)
#define XGMAC_TPS BIT(1)
#define XGMAC_TI BIT(0)
#define XGMAC_REGSIZE ((0x0000317c + (0x80 * 15)) / 4)
/* Descriptors */
#define XGMAC_TDES2_IOC BIT(31)

11
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_core.c
View File

@ -239,6 +239,15 @@ static void dwxgmac2_config_cbs(struct mac_device_info *hw,
writel(value, ioaddr + XGMAC_MTL_TCx_ETS_CONTROL(queue));
}
static void dwxgmac2_dump_regs(struct mac_device_info *hw, u32 *reg_space)
{
void __iomem *ioaddr = hw->pcsr;
int i;
for (i = 0; i < XGMAC_MAC_REGSIZE; i++)
reg_space[i] = readl(ioaddr + i * 4);
}
static int dwxgmac2_host_irq_status(struct mac_device_info *hw,
struct stmmac_extra_stats *x)
{
@ -1079,7 +1088,7 @@ const struct stmmac_ops dwxgmac210_ops = {
.set_mtl_tx_queue_weight = dwxgmac2_set_mtl_tx_queue_weight,
.map_mtl_to_dma = dwxgmac2_map_mtl_to_dma,
.config_cbs = dwxgmac2_config_cbs,
.dump_regs = NULL,
.dump_regs = dwxgmac2_dump_regs,
.host_irq_status = dwxgmac2_host_irq_status,
.host_mtl_irq_status = dwxgmac2_host_mtl_irq_status,
.flow_ctrl = dwxgmac2_flow_ctrl,

10
drivers/net/ethernet/stmicro/stmmac/dwxgmac2_dma.c
View File

@ -128,6 +128,14 @@ static void dwxgmac2_dma_axi(void __iomem *ioaddr, struct stmmac_axi *axi)
writel(XGMAC_RDPS, ioaddr + XGMAC_RX_EDMA_CTRL);
}
static void dwxgmac2_dma_dump_regs(void __iomem *ioaddr, u32 *reg_space)
{
int i;
for (i = (XGMAC_DMA_MODE / 4); i < XGMAC_REGSIZE; i++)
reg_space[i] = readl(ioaddr + i * 4);
}
static void dwxgmac2_dma_rx_mode(void __iomem *ioaddr, int mode,
u32 channel, int fifosz, u8 qmode)
{
@ -496,7 +504,7 @@ const struct stmmac_dma_ops dwxgmac210_dma_ops = {
.init_rx_chan = dwxgmac2_dma_init_rx_chan,
.init_tx_chan = dwxgmac2_dma_init_tx_chan,
.axi = dwxgmac2_dma_axi,
.dump_regs = NULL,
.dump_regs = dwxgmac2_dma_dump_regs,
.dma_rx_mode = dwxgmac2_dma_rx_mode,
.dma_tx_mode = dwxgmac2_dma_tx_mode,
.enable_dma_irq = dwxgmac2_enable_dma_irq,

23
drivers/net/ethernet/stmicro/stmmac/stmmac_ethtool.c
View File

@ -18,10 +18,12 @@
#include "stmmac.h"
#include "dwmac_dma.h"
#include "dwxgmac2.h"
#define REG_SPACE_SIZE 0x1060
#define MAC100_ETHTOOL_NAME "st_mac100"
#define GMAC_ETHTOOL_NAME "st_gmac"
#define XGMAC_ETHTOOL_NAME "st_xgmac"
#define ETHTOOL_DMA_OFFSET 55
@ -260,6 +262,8 @@ static void stmmac_ethtool_getdrvinfo(struct net_device *dev,
if (priv->plat->has_gmac || priv->plat->has_gmac4)
strlcpy(info->driver, GMAC_ETHTOOL_NAME, sizeof(info->driver));
else if (priv->plat->has_xgmac)
strlcpy(info->driver, XGMAC_ETHTOOL_NAME, sizeof(info->driver));
else
strlcpy(info->driver, MAC100_ETHTOOL_NAME,
sizeof(info->driver));
@ -405,23 +409,28 @@ static int stmmac_check_if_running(struct net_device *dev)
static int stmmac_ethtool_get_regs_len(struct net_device *dev)
{
struct stmmac_priv *priv = netdev_priv(dev);
if (priv->plat->has_xgmac)
return XGMAC_REGSIZE * 4;
return REG_SPACE_SIZE;
}
static void stmmac_ethtool_gregs(struct net_device *dev,
struct ethtool_regs *regs, void *space)
{
u32 *reg_space = (u32 *) space;
struct stmmac_priv *priv = netdev_priv(dev);
memset(reg_space, 0x0, REG_SPACE_SIZE);
u32 *reg_space = (u32 *) space;
stmmac_dump_mac_regs(priv, priv->hw, reg_space);
stmmac_dump_dma_regs(priv, priv->ioaddr, reg_space);
/* Copy DMA registers to where ethtool expects them */
memcpy(&reg_space[ETHTOOL_DMA_OFFSET], &reg_space[DMA_BUS_MODE / 4],
NUM_DWMAC1000_DMA_REGS * 4);
if (!priv->plat->has_xgmac) {
/* Copy DMA registers to where ethtool expects them */
memcpy(&reg_space[ETHTOOL_DMA_OFFSET],
&reg_space[DMA_BUS_MODE / 4],
NUM_DWMAC1000_DMA_REGS * 4);
}
}
static int stmmac_nway_reset(struct net_device *dev)