sky2: add support for read/write of EEPROM
Add get/set eeprom support for sky2.
Signed-off-by: Stephen Hemminger <shemminger@linux-foundation.org>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
diff --git a/drivers/net/sky2.c b/drivers/net/sky2.c
index b0950e1..99a9993 100644
--- a/drivers/net/sky2.c
+++ b/drivers/net/sky2.c
@@ -77,6 +77,9 @@
#define NAPI_WEIGHT 64
#define PHY_RETRIES 1000
+#define SKY2_EEPROM_MAGIC 0x9955aabb
+
+
#define RING_NEXT(x,s) (((x)+1) & ((s)-1))
static const u32 default_msg =
@@ -3429,34 +3432,121 @@
return ethtool_op_set_tso(dev, data);
}
+static int sky2_get_eeprom_len(struct net_device *dev)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ u16 reg2;
+
+ reg2 = sky2_pci_read32(sky2->hw, PCI_DEV_REG2);
+ return 1 << ( ((reg2 & PCI_VPD_ROM_SZ) >> 14) + 8);
+}
+
+static u32 sky2_vpd_read(struct sky2_hw *hw, int cap, u16 offset)
+{
+ sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset);
+
+ while (!(sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F))
+ cpu_relax();
+ return sky2_pci_read32(hw, cap + PCI_VPD_DATA);
+}
+
+static void sky2_vpd_write(struct sky2_hw *hw, int cap, u16 offset, u32 val)
+{
+ sky2_pci_write32(hw, cap + PCI_VPD_DATA, val);
+ sky2_pci_write16(hw, cap + PCI_VPD_ADDR, offset | PCI_VPD_ADDR_F);
+ do {
+ cpu_relax();
+ } while (sky2_pci_read16(hw, cap + PCI_VPD_ADDR) & PCI_VPD_ADDR_F);
+}
+
+static int sky2_get_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
+ int length = eeprom->len;
+ u16 offset = eeprom->offset;
+
+ if (!cap)
+ return -EINVAL;
+
+ eeprom->magic = SKY2_EEPROM_MAGIC;
+
+ while (length > 0) {
+ u32 val = sky2_vpd_read(sky2->hw, cap, offset);
+ int n = min_t(int, length, sizeof(val));
+
+ memcpy(data, &val, n);
+ length -= n;
+ data += n;
+ offset += n;
+ }
+ return 0;
+}
+
+static int sky2_set_eeprom(struct net_device *dev, struct ethtool_eeprom *eeprom,
+ u8 *data)
+{
+ struct sky2_port *sky2 = netdev_priv(dev);
+ int cap = pci_find_capability(sky2->hw->pdev, PCI_CAP_ID_VPD);
+ int length = eeprom->len;
+ u16 offset = eeprom->offset;
+
+ if (!cap)
+ return -EINVAL;
+
+ if (eeprom->magic != SKY2_EEPROM_MAGIC)
+ return -EINVAL;
+
+ while (length > 0) {
+ u32 val;
+ int n = min_t(int, length, sizeof(val));
+
+ if (n < sizeof(val))
+ val = sky2_vpd_read(sky2->hw, cap, offset);
+ memcpy(&val, data, n);
+
+ sky2_vpd_write(sky2->hw, cap, offset, val);
+
+ length -= n;
+ data += n;
+ offset += n;
+ }
+ return 0;
+}
+
+
static const struct ethtool_ops sky2_ethtool_ops = {
- .get_settings = sky2_get_settings,
- .set_settings = sky2_set_settings,
- .get_drvinfo = sky2_get_drvinfo,
- .get_wol = sky2_get_wol,
- .set_wol = sky2_set_wol,
- .get_msglevel = sky2_get_msglevel,
- .set_msglevel = sky2_set_msglevel,
- .nway_reset = sky2_nway_reset,
- .get_regs_len = sky2_get_regs_len,
- .get_regs = sky2_get_regs,
- .get_link = ethtool_op_get_link,
- .get_sg = ethtool_op_get_sg,
- .set_sg = ethtool_op_set_sg,
- .get_tx_csum = ethtool_op_get_tx_csum,
- .set_tx_csum = sky2_set_tx_csum,
- .get_tso = ethtool_op_get_tso,
- .set_tso = sky2_set_tso,
- .get_rx_csum = sky2_get_rx_csum,
- .set_rx_csum = sky2_set_rx_csum,
- .get_strings = sky2_get_strings,
- .get_coalesce = sky2_get_coalesce,
- .set_coalesce = sky2_set_coalesce,
- .get_ringparam = sky2_get_ringparam,
- .set_ringparam = sky2_set_ringparam,
+ .get_settings = sky2_get_settings,
+ .set_settings = sky2_set_settings,
+ .get_drvinfo = sky2_get_drvinfo,
+ .get_wol = sky2_get_wol,
+ .set_wol = sky2_set_wol,
+ .get_msglevel = sky2_get_msglevel,
+ .set_msglevel = sky2_set_msglevel,
+ .nway_reset = sky2_nway_reset,
+ .get_regs_len = sky2_get_regs_len,
+ .get_regs = sky2_get_regs,
+ .get_link = ethtool_op_get_link,
+ .get_eeprom_len = sky2_get_eeprom_len,
+ .get_eeprom = sky2_get_eeprom,
+ .set_eeprom = sky2_set_eeprom,
+ .get_sg = ethtool_op_get_sg,
+ .set_sg = ethtool_op_set_sg,
+ .get_tx_csum = ethtool_op_get_tx_csum,
+ .set_tx_csum = sky2_set_tx_csum,
+ .get_tso = ethtool_op_get_tso,
+ .set_tso = sky2_set_tso,
+ .get_rx_csum = sky2_get_rx_csum,
+ .set_rx_csum = sky2_set_rx_csum,
+ .get_strings = sky2_get_strings,
+ .get_coalesce = sky2_get_coalesce,
+ .set_coalesce = sky2_set_coalesce,
+ .get_ringparam = sky2_get_ringparam,
+ .set_ringparam = sky2_set_ringparam,
.get_pauseparam = sky2_get_pauseparam,
.set_pauseparam = sky2_set_pauseparam,
- .phys_id = sky2_phys_id,
+ .phys_id = sky2_phys_id,
.get_stats_count = sky2_get_stats_count,
.get_ethtool_stats = sky2_get_ethtool_stats,
.get_perm_addr = ethtool_op_get_perm_addr,