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Date: Mon, 25 Oct 2010 19:22:14 -0700
From: Jesse Gross <jesse@...ira.com>
To: jgarzik@...hat.com
Cc: netdev@...r.kernel.org
Subject: [PATCH] ethtool: Add support for vlan accleration.
The kernel now has support for enabling and disabling vlan
acceleration, similar to other forms of offloading. This
adds the complementary userspace support.
Signed-off-by: Jesse Gross <jesse@...ira.com>
---
ethtool-copy.h | 2 ++
ethtool.8 | 8 ++++++++
ethtool.c | 21 ++++++++++++++++++---
3 files changed, 28 insertions(+), 3 deletions(-)
diff --git a/ethtool-copy.h b/ethtool-copy.h
index 894f1da..557425e 100644
--- a/ethtool-copy.h
+++ b/ethtool-copy.h
@@ -308,6 +308,8 @@ struct ethtool_perm_addr {
* flag differs from the read-only value.
*/
enum ethtool_flags {
+ ETH_FLAG_TXVLAN = (1 << 7), /* TX VLAN offload enabled */
+ ETH_FLAG_RXVLAN = (1 << 8), /* RX VLAN offload enabled */
ETH_FLAG_LRO = (1 << 15), /* LRO is enabled */
ETH_FLAG_NTUPLE = (1 << 27), /* N-tuple filters enabled */
ETH_FLAG_RXHASH = (1 << 28),
diff --git a/ethtool.8 b/ethtool.8
index 3ca403c..7801797 100644
--- a/ethtool.8
+++ b/ethtool.8
@@ -170,6 +170,8 @@ ethtool \- Display or change ethernet card settings
.B2 gso on off
.B2 gro on off
.B2 lro on off
+.B2 rxvlan on off
+.B2 txvlan on off
.B2 rxhash on off
.B ethtool \-p|\-\-identify
@@ -377,6 +379,12 @@ Specifies whether generic receive offload should be enabled
.A2 lro on off
Specifies whether large receive offload should be enabled
.TP
+.A2 rxvlan on off
+Specifies whether RX VLAN acceleration should be enabled
+.TP
+.A2 txvlan on off
+Specifies whether TX VLAN acceleration should be enabled
+.TP
.A2 rxhash on off
Specifies whether receive hashing offload should be enabled
.TP
diff --git a/ethtool.c b/ethtool.c
index 6b2b7c8..3d24d58 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -200,6 +200,8 @@ static struct option {
" [ gso on|off ]\n"
" [ gro on|off ]\n"
" [ lro on|off ]\n"
+ " [ rxvlan on|off ]\n"
+ " [ txvlan on|off ]\n"
" [ ntuple on|off ]\n"
" [ rxhash on|off ]\n"
},
@@ -435,6 +437,10 @@ static struct cmdline_info cmdline_offload[] = {
{ "lro", CMDL_FLAG, &off_flags_wanted, NULL,
ETH_FLAG_LRO, &off_flags_unwanted },
{ "gro", CMDL_BOOL, &off_gro_wanted, NULL },
+ { "rxvlan", CMDL_FLAG, &off_flags_wanted, NULL,
+ ETH_FLAG_RXVLAN, &off_flags_unwanted },
+ { "txvlan", CMDL_FLAG, &off_flags_wanted, NULL,
+ ETH_FLAG_TXVLAN, &off_flags_unwanted },
{ "ntuple", CMDL_FLAG, &off_flags_wanted, NULL,
ETH_FLAG_NTUPLE, &off_flags_unwanted },
{ "rxhash", CMDL_FLAG, &off_flags_wanted, NULL,
@@ -1732,7 +1738,8 @@ static int dump_coalesce(void)
}
static int dump_offload(int rx, int tx, int sg, int tso, int ufo, int gso,
- int gro, int lro, int ntuple, int rxhash)
+ int gro, int lro, int rxvlan, int txvlan, int ntuple,
+ int rxhash)
{
fprintf(stdout,
"rx-checksumming: %s\n"
@@ -1743,6 +1750,8 @@ static int dump_offload(int rx, int tx, int sg, int tso, int ufo, int gso,
"generic-segmentation-offload: %s\n"
"generic-receive-offload: %s\n"
"large-receive-offload: %s\n"
+ "rx-vlan-offload: %s\n"
+ "tx-vlan-offload: %s\n"
"ntuple-filters: %s\n"
"receive-hashing: %s\n",
rx ? "on" : "off",
@@ -1753,6 +1762,8 @@ static int dump_offload(int rx, int tx, int sg, int tso, int ufo, int gso,
gso ? "on" : "off",
gro ? "on" : "off",
lro ? "on" : "off",
+ rxvlan ? "on" : "off",
+ txvlan ? "on" : "off",
ntuple ? "on" : "off",
rxhash ? "on" : "off");
@@ -2075,7 +2086,8 @@ static int do_goffload(int fd, struct ifreq *ifr)
{
struct ethtool_value eval;
int err, allfail = 1, rx = 0, tx = 0, sg = 0;
- int tso = 0, ufo = 0, gso = 0, gro = 0, lro = 0, ntuple = 0, rxhash = 0;
+ int tso = 0, ufo = 0, gso = 0, gro = 0, lro = 0, rxvlan = 0, txvlan = 0,
+ ntuple = 0, rxhash = 0;
fprintf(stdout, "Offload parameters for %s:\n", devname);
@@ -2146,6 +2158,8 @@ static int do_goffload(int fd, struct ifreq *ifr)
perror("Cannot get device flags");
} else {
lro = (eval.data & ETH_FLAG_LRO) != 0;
+ rxvlan = (eval.data & ETH_FLAG_RXVLAN) != 0;
+ txvlan = (eval.data & ETH_FLAG_TXVLAN) != 0;
ntuple = (eval.data & ETH_FLAG_NTUPLE) != 0;
rxhash = (eval.data & ETH_FLAG_RXHASH) != 0;
allfail = 0;
@@ -2166,7 +2180,8 @@ static int do_goffload(int fd, struct ifreq *ifr)
return 83;
}
- return dump_offload(rx, tx, sg, tso, ufo, gso, gro, lro, ntuple, rxhash);
+ return dump_offload(rx, tx, sg, tso, ufo, gso, gro, lro, rxvlan, txvlan,
+ ntuple, rxhash);
}
static int do_soffload(int fd, struct ifreq *ifr)
--
1.7.1
--
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