ethtool: Add n-tuple string length to drvinfo and return it
The drvinfo struct should include the number of strings that
get_rx_ntuple will return. It will be variable if an underlying
driver implements its own get_rx_ntuple routine, so userspace
needs to know how much data is coming.
Signed-off-by: Peter P Waskiewicz Jr <peter.p.waskiewicz.jr@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
diff --git a/include/linux/ethtool.h b/include/linux/ethtool.h
index cca1c3de..f7992a2 100644
--- a/include/linux/ethtool.h
+++ b/include/linux/ethtool.h
@@ -63,6 +63,7 @@
char reserved2[12];
__u32 n_priv_flags; /* number of flags valid in ETHTOOL_GPFLAGS */
__u32 n_stats; /* number of u64's from ETHTOOL_GSTATS */
+ __u32 n_ntuples; /* number of n-tuple filters from GSTRINGS */
__u32 testinfo_len;
__u32 eedump_len; /* Size of data from ETHTOOL_GEEPROM (bytes) */
__u32 regdump_len; /* Size of data from ETHTOOL_GREGS (bytes) */
diff --git a/net/core/ethtool.c b/net/core/ethtool.c
index 31b1edd..1c94f48 100644
--- a/net/core/ethtool.c
+++ b/net/core/ethtool.c
@@ -224,6 +224,9 @@
rc = ops->get_sset_count(dev, ETH_SS_PRIV_FLAGS);
if (rc >= 0)
info.n_priv_flags = rc;
+ rc = ops->get_sset_count(dev, ETH_SS_NTUPLE_FILTERS);
+ if (rc >= 0)
+ info.n_ntuples = rc;
}
if (ops->get_regs_len)
info.regdump_len = ops->get_regs_len(dev);
