leandrof/linux
1
0
Fork 0
Code Issues Pull Requests Packages Projects Releases Wiki Activity

net: fec: add support of ethtool get_regs

Browse Source 
This enables the ethtool's "-d" and "--register-dump"
options for fec devices.

Signed-off-by: Philippe Reynes <tremyfr@gmail.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
This commit is contained in:
Philippe Reynes 2015-05-11 00:01:42 +02:00 committed by David S. Miller
parent 4cda01e86f
commit db65f35f50
1 changed files with 78 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

78
drivers/net/ethernet/freescale/fec_main.c
View File

@ -2118,6 +2118,82 @@ static void fec_enet_get_drvinfo(struct net_device *ndev,
strlcpy(info->bus_info, dev_name(&ndev->dev), sizeof(info->bus_info));
}
static int fec_enet_get_regs_len(struct net_device *ndev)
{
struct fec_enet_private *fep = netdev_priv(ndev);
struct resource *r;
int s = 0;
r = platform_get_resource(fep->pdev, IORESOURCE_MEM, 0);
if (r)
s = resource_size(r);
return s;
}
/* List of registers that can be safety be read to dump them with ethtool */
#if defined(CONFIG_M523x) || defined(CONFIG_M527x) || defined(CONFIG_M528x) || \
defined(CONFIG_M520x) || defined(CONFIG_M532x) || \
defined(CONFIG_ARCH_MXC) || defined(CONFIG_SOC_IMX28)
static u32 fec_enet_register_offset[] = {
FEC_IEVENT, FEC_IMASK, FEC_R_DES_ACTIVE_0, FEC_X_DES_ACTIVE_0,
FEC_ECNTRL, FEC_MII_DATA, FEC_MII_SPEED, FEC_MIB_CTRLSTAT, FEC_R_CNTRL,
FEC_X_CNTRL, FEC_ADDR_LOW, FEC_ADDR_HIGH, FEC_OPD, FEC_TXIC0, FEC_TXIC1,
FEC_TXIC2, FEC_RXIC0, FEC_RXIC1, FEC_RXIC2, FEC_HASH_TABLE_HIGH,
FEC_HASH_TABLE_LOW, FEC_GRP_HASH_TABLE_HIGH, FEC_GRP_HASH_TABLE_LOW,
FEC_X_WMRK, FEC_R_BOUND, FEC_R_FSTART, FEC_R_DES_START_1,
FEC_X_DES_START_1, FEC_R_BUFF_SIZE_1, FEC_R_DES_START_2,
FEC_X_DES_START_2, FEC_R_BUFF_SIZE_2, FEC_R_DES_START_0,
FEC_X_DES_START_0, FEC_R_BUFF_SIZE_0, FEC_R_FIFO_RSFL, FEC_R_FIFO_RSEM,
FEC_R_FIFO_RAEM, FEC_R_FIFO_RAFL, FEC_RACC, FEC_RCMR_1, FEC_RCMR_2,
FEC_DMA_CFG_1, FEC_DMA_CFG_2, FEC_R_DES_ACTIVE_1, FEC_X_DES_ACTIVE_1,
FEC_R_DES_ACTIVE_2, FEC_X_DES_ACTIVE_2, FEC_QOS_SCHEME,
RMON_T_DROP, RMON_T_PACKETS, RMON_T_BC_PKT, RMON_T_MC_PKT,
RMON_T_CRC_ALIGN, RMON_T_UNDERSIZE, RMON_T_OVERSIZE, RMON_T_FRAG,
RMON_T_JAB, RMON_T_COL, RMON_T_P64, RMON_T_P65TO127, RMON_T_P128TO255,
RMON_T_P256TO511, RMON_T_P512TO1023, RMON_T_P1024TO2047,
RMON_T_P_GTE2048, RMON_T_OCTETS,
IEEE_T_DROP, IEEE_T_FRAME_OK, IEEE_T_1COL, IEEE_T_MCOL, IEEE_T_DEF,
IEEE_T_LCOL, IEEE_T_EXCOL, IEEE_T_MACERR, IEEE_T_CSERR, IEEE_T_SQE,
IEEE_T_FDXFC, IEEE_T_OCTETS_OK,
RMON_R_PACKETS, RMON_R_BC_PKT, RMON_R_MC_PKT, RMON_R_CRC_ALIGN,
RMON_R_UNDERSIZE, RMON_R_OVERSIZE, RMON_R_FRAG, RMON_R_JAB,
RMON_R_RESVD_O, RMON_R_P64, RMON_R_P65TO127, RMON_R_P128TO255,
RMON_R_P256TO511, RMON_R_P512TO1023, RMON_R_P1024TO2047,
RMON_R_P_GTE2048, RMON_R_OCTETS,
IEEE_R_DROP, IEEE_R_FRAME_OK, IEEE_R_CRC, IEEE_R_ALIGN, IEEE_R_MACERR,
IEEE_R_FDXFC, IEEE_R_OCTETS_OK
};
#else
static u32 fec_enet_register_offset[] = {
FEC_ECNTRL, FEC_IEVENT, FEC_IMASK, FEC_IVEC, FEC_R_DES_ACTIVE_0,
FEC_R_DES_ACTIVE_1, FEC_R_DES_ACTIVE_2, FEC_X_DES_ACTIVE_0,
FEC_X_DES_ACTIVE_1, FEC_X_DES_ACTIVE_2, FEC_MII_DATA, FEC_MII_SPEED,
FEC_R_BOUND, FEC_R_FSTART, FEC_X_WMRK, FEC_X_FSTART, FEC_R_CNTRL,
FEC_MAX_FRM_LEN, FEC_X_CNTRL, FEC_ADDR_LOW, FEC_ADDR_HIGH,
FEC_GRP_HASH_TABLE_HIGH, FEC_GRP_HASH_TABLE_LOW, FEC_R_DES_START_0,
FEC_R_DES_START_1, FEC_R_DES_START_2, FEC_X_DES_START_0,
FEC_X_DES_START_1, FEC_X_DES_START_2, FEC_R_BUFF_SIZE_0,
FEC_R_BUFF_SIZE_1, FEC_R_BUFF_SIZE_2
};
#endif
static void fec_enet_get_regs(struct net_device *ndev,
struct ethtool_regs *regs, void *regbuf)
{
struct fec_enet_private *fep = netdev_priv(ndev);
u32 __iomem *theregs = (u32 __iomem *)fep->hwp;
u32 *buf = (u32 *)regbuf;
u32 i, off;
memset(buf, 0, regs->len);
for (i = 0; i < ARRAY_SIZE(fec_enet_register_offset); i++) {
off = fec_enet_register_offset[i] / 4;
buf[off] = readl(&theregs[off]);
}
}
static int fec_enet_get_ts_info(struct net_device *ndev,
struct ethtool_ts_info *info)
{
@ -2515,6 +2591,8 @@ static const struct ethtool_ops fec_enet_ethtool_ops = {
.get_settings = fec_enet_get_settings,
.set_settings = fec_enet_set_settings,
.get_drvinfo = fec_enet_get_drvinfo,
.get_regs_len = fec_enet_get_regs_len,
.get_regs = fec_enet_get_regs,
.nway_reset = fec_enet_nway_reset,
.get_link = ethtool_op_get_link,
.get_coalesce = fec_enet_get_coalesce,