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| author | Sergej Benilov <sergej.benilov@googlemail.com> | 2019-07-25 21:48:06 +0200 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2019-07-26 14:24:48 -0700 |
| commit | cd8ae2073963eff4c318d0a1f0e91fc35f0c6a83 (patch) | |
| tree | 58203c0dde1cbe15895bcaedd0ce926b07e1ea58 /drivers/net/ethernet/sis | |
| parent | 1fbf400b58fa70c35bf671ff640b83799e45388d (diff) | |
| download | linux-cd8ae2073963eff4c318d0a1f0e91fc35f0c6a83.tar.bz2 | |
sis900: add support for ethtool's EEPROM dump
Implement ethtool's EEPROM dump command (ethtool -e|--eeprom-dump).
Thx to Andrew Lunn for comments.
Signed-off-by: Sergej Benilov <sergej.benilov@googlemail.com>
Reviewed-by: Andrew Lunn <andrew@lunn.ch>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/sis')
| -rw-r--r-- | drivers/net/ethernet/sis/sis900.c | 68 |
1 files changed, 68 insertions, 0 deletions
diff --git a/drivers/net/ethernet/sis/sis900.c b/drivers/net/ethernet/sis/sis900.c index 6e07f5ebacfc..85eaccbbbac1 100644 --- a/drivers/net/ethernet/sis/sis900.c +++ b/drivers/net/ethernet/sis/sis900.c @@ -191,6 +191,8 @@ struct sis900_private { unsigned int tx_full; /* The Tx queue is full. */ u8 host_bridge_rev; u8 chipset_rev; + /* EEPROM data */ + int eeprom_size; }; MODULE_AUTHOR("Jim Huang <cmhuang@sis.com.tw>, Ollie Lho <ollie@sis.com.tw>"); @@ -475,6 +477,8 @@ static int sis900_probe(struct pci_dev *pci_dev, sis_priv->pci_dev = pci_dev; spin_lock_init(&sis_priv->lock); + sis_priv->eeprom_size = 24; + pci_set_drvdata(pci_dev, net_dev); ring_space = pci_alloc_consistent(pci_dev, TX_TOTAL_SIZE, &ring_dma); @@ -2122,6 +2126,68 @@ static void sis900_get_wol(struct net_device *net_dev, struct ethtool_wolinfo *w wol->supported = (WAKE_PHY | WAKE_MAGIC); } +static int sis900_get_eeprom_len(struct net_device *dev) +{ + struct sis900_private *sis_priv = netdev_priv(dev); + + return sis_priv->eeprom_size; +} + +static int sis900_read_eeprom(struct net_device *net_dev, u8 *buf) +{ + struct sis900_private *sis_priv = netdev_priv(net_dev); + void __iomem *ioaddr = sis_priv->ioaddr; + int wait, ret = -EAGAIN; + u16 signature; + u16 *ebuf = (u16 *)buf; + int i; + + if (sis_priv->chipset_rev == SIS96x_900_REV) { + sw32(mear, EEREQ); + for (wait = 0; wait < 2000; wait++) { + if (sr32(mear) & EEGNT) { + /* read 16 bits, and index by 16 bits */ + for (i = 0; i < sis_priv->eeprom_size / 2; i++) + ebuf[i] = (u16)read_eeprom(ioaddr, i); + ret = 0; + break; + } + udelay(1); + } + sw32(mear, EEDONE); + } else { + signature = (u16)read_eeprom(ioaddr, EEPROMSignature); + if (signature != 0xffff && signature != 0x0000) { + /* read 16 bits, and index by 16 bits */ + for (i = 0; i < sis_priv->eeprom_size / 2; i++) + ebuf[i] = (u16)read_eeprom(ioaddr, i); + ret = 0; + } + } + return ret; +} + +#define SIS900_EEPROM_MAGIC 0xBABE +static int sis900_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom, u8 *data) +{ + struct sis900_private *sis_priv = netdev_priv(dev); + u8 *eebuf; + int res; + + eebuf = kmalloc(sis_priv->eeprom_size, GFP_KERNEL); + if (!eebuf) + return -ENOMEM; + + eeprom->magic = SIS900_EEPROM_MAGIC; + spin_lock_irq(&sis_priv->lock); + res = sis900_read_eeprom(dev, eebuf); + spin_unlock_irq(&sis_priv->lock); + if (!res) + memcpy(data, eebuf + eeprom->offset, eeprom->len); + kfree(eebuf); + return res; +} + static const struct ethtool_ops sis900_ethtool_ops = { .get_drvinfo = sis900_get_drvinfo, .get_msglevel = sis900_get_msglevel, @@ -2132,6 +2198,8 @@ static const struct ethtool_ops sis900_ethtool_ops = { .set_wol = sis900_set_wol, .get_link_ksettings = sis900_get_link_ksettings, .set_link_ksettings = sis900_set_link_ksettings, + .get_eeprom_len = sis900_get_eeprom_len, + .get_eeprom = sis900_get_eeprom, }; /** |