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author | Stuart Hodgson <smhodgson@solarflare.com> | 2012-04-19 09:44:42 +0100 |
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committer | Ben Hutchings <bhutchings@solarflare.com> | 2012-05-10 02:22:17 +0100 |
commit | 41c3cb6d20f0252308e9796fa4f3dacb4960de91 (patch) | |
tree | cc816536a6cc0b5c6e971a2b8b0828e1ee9f43b9 /net/core | |
parent | 081d094eaab894ae5a517fde56179dfe67773ff0 (diff) | |
download | linux-3.10-41c3cb6d20f0252308e9796fa4f3dacb4960de91.tar.gz linux-3.10-41c3cb6d20f0252308e9796fa4f3dacb4960de91.tar.bz2 linux-3.10-41c3cb6d20f0252308e9796fa4f3dacb4960de91.zip |
ethtool: Extend the ethtool API to obtain plugin module eeprom data
ETHTOOL_GMODULEINFO returns a new struct ethtool_modinfo that will return the
type and size of plug-in module eeprom (such as SFP+) for parsing
by userland program.
ETHTOOL_GMODULEEEPROM returns the raw eeprom information
using the existing ethtool_eeprom structture to return the data
Signed-off-by: Stuart Hodgson <smhodgson@solarflare.com>
Signed-off-by: Ben Hutchings <bhutchings@solarflare.com>
Diffstat (limited to 'net/core')
-rw-r--r-- | net/core/ethtool.c | 47 |
1 files changed, 47 insertions, 0 deletions
diff --git a/net/core/ethtool.c b/net/core/ethtool.c index ca7698fd24d..9c2afb48027 100644 --- a/net/core/ethtool.c +++ b/net/core/ethtool.c @@ -1335,6 +1335,47 @@ static int ethtool_get_ts_info(struct net_device *dev, void __user *useraddr) return err; } +static int ethtool_get_module_info(struct net_device *dev, + void __user *useraddr) +{ + int ret; + struct ethtool_modinfo modinfo; + const struct ethtool_ops *ops = dev->ethtool_ops; + + if (!ops->get_module_info) + return -EOPNOTSUPP; + + if (copy_from_user(&modinfo, useraddr, sizeof(modinfo))) + return -EFAULT; + + ret = ops->get_module_info(dev, &modinfo); + if (ret) + return ret; + + if (copy_to_user(useraddr, &modinfo, sizeof(modinfo))) + return -EFAULT; + + return 0; +} + +static int ethtool_get_module_eeprom(struct net_device *dev, + void __user *useraddr) +{ + int ret; + struct ethtool_modinfo modinfo; + const struct ethtool_ops *ops = dev->ethtool_ops; + + if (!ops->get_module_info || !ops->get_module_eeprom) + return -EOPNOTSUPP; + + ret = ops->get_module_info(dev, &modinfo); + if (ret) + return ret; + + return ethtool_get_any_eeprom(dev, useraddr, ops->get_module_eeprom, + modinfo.eeprom_len); +} + /* The main entry point in this file. Called from net/core/dev.c */ int dev_ethtool(struct net *net, struct ifreq *ifr) @@ -1559,6 +1600,12 @@ int dev_ethtool(struct net *net, struct ifreq *ifr) case ETHTOOL_GET_TS_INFO: rc = ethtool_get_ts_info(dev, useraddr); break; + case ETHTOOL_GMODULEINFO: + rc = ethtool_get_module_info(dev, useraddr); + break; + case ETHTOOL_GMODULEEEPROM: + rc = ethtool_get_module_eeprom(dev, useraddr); + break; default: rc = -EOPNOTSUPP; } |