Hello.
Upcoming 2.6.18 provides Generic Segmentation Offload (GSO).
This provides its control with -K option.
Signed-off-by: YOSHIFUJI Hideaki <[EMAIL PROTECTED]>
diff --git a/ethtool-copy.h b/ethtool-copy.h
index d696de3..30f5e05 100644
--- a/ethtool-copy.h
+++ b/ethtool-copy.h
@@ -285,6 +285,8 @@ #define ETHTOOL_GTSO 0x0000001e /* Get
#define ETHTOOL_STSO 0x0000001f /* Set TSO enable (ethtool_value) */
#define ETHTOOL_GUFO 0x00000021 /* Get UFO enable (ethtool_value) */
#define ETHTOOL_SUFO 0x00000022 /* Set UFO enable (ethtool_value) */
+#define ETHTOOL_GGSO 0x00000023 /* Get GSO enable (ethtool_value) */
+#define ETHTOOL_SGSO 0x00000024 /* Set GSO enable (ethtool_value) */
/* compatibility with older code */
#define SPARC_ETH_GSET ETHTOOL_GSET
diff --git a/ethtool.8 b/ethtool.8
index 6cb1477..b735be0 100644
--- a/ethtool.8
+++ b/ethtool.8
@@ -154,6 +154,7 @@ ethtool \- Display or change ethernet ca
.B2 sg on off
.B2 tso on off
.B2 ufo on off
+.B2 gso on off
.B ethtool \-p|\-\-blink
.I ethX
@@ -276,6 +277,9 @@ Specify if tcp segmentation offload is e
.A2 ufo on off
Specify if UDP fragmentation offload is enabled
.TP
+.A2 gso on off
+Specify if generic segmentation offload is enabled
+.TP
.B \-p \-\-identify
initiates adapter-specific action intended to enable an operator to
easily identify the adapter by sight. Typically this involves
diff --git a/ethtool.c b/ethtool.c
index 7d408be..fdaae0e 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -145,7 +145,8 @@ static struct option {
" [ tx on|off ]\n"
" [ sg on|off ]\n"
" [ tso on|off ]\n"
- " [ ufo on|off ]\n" },
+ " [ ufo on|off ]\n"
+ " [ gso on|off ]\n" },
{ "-i", "--driver", MODE_GDRV, "Show driver information" },
{ "-d", "--register-dump", MODE_GREGS, "Do a register dump" },
{ "-e", "--eeprom-dump", MODE_GEEPROM, "Do a EEPROM dump",
@@ -191,6 +192,7 @@ static int off_csum_tx_wanted = -1;
static int off_sg_wanted = -1;
static int off_tso_wanted = -1;
static int off_ufo_wanted = -1;
+static int off_gso_wanted = -1;
static struct ethtool_pauseparam epause;
static int gpause_changed = 0;
@@ -295,6 +297,7 @@ static struct cmdline_info cmdline_offlo
{ "sg", CMDL_BOOL, &off_sg_wanted, NULL },
{ "tso", CMDL_BOOL, &off_tso_wanted, NULL },
{ "ufo", CMDL_BOOL, &off_ufo_wanted, NULL },
+ { "gso", CMDL_BOOL, &off_gso_wanted, NULL },
};
static struct cmdline_info cmdline_pause[] = {
@@ -1115,19 +1118,21 @@ static int dump_coalesce(void)
return 0;
}
-static int dump_offload (int rx, int tx, int sg, int tso, int ufo)
+static int dump_offload (int rx, int tx, int sg, int tso, int ufo, int gso)
{
fprintf(stdout,
"rx-checksumming: %s\n"
"tx-checksumming: %s\n"
"scatter-gather: %s\n"
"tcp segmentation offload: %s\n"
- "udp fragmentation offload: %s\n",
+ "udp fragmentation offload: %s\n"
+ "generic segmentation offload: %s\n",
rx ? "on" : "off",
tx ? "on" : "off",
sg ? "on" : "off",
tso ? "on" : "off",
- ufo ? "on" : "off");
+ ufo ? "on" : "off",
+ gso ? "on" : "off");
return 0;
}
@@ -1391,7 +1396,7 @@ static int do_scoalesce(int fd, struct i
static int do_goffload(int fd, struct ifreq *ifr)
{
struct ethtool_value eval;
- int err, allfail = 1, rx = 0, tx = 0, sg = 0, tso = 0, ufo = 0;
+ int err, allfail = 1, rx = 0, tx = 0, sg = 0, tso = 0, ufo = 0, gso = 0;
fprintf(stdout, "Offload parameters for %s:\n", devname);
@@ -1445,12 +1450,22 @@ static int do_goffload(int fd, struct if
allfail = 0;
}
+ eval.cmd = ETHTOOL_GGSO;
+ ifr->ifr_data = (caddr_t)&eval;
+ err = ioctl(fd, SIOCETHTOOL, ifr);
+ if (err)
+ perror("Cannot get device generic segmentation offload
settings");
+ else {
+ gso = eval.data;
+ allfail = 0;
+ }
+
if (allfail) {
fprintf(stdout, "no offload info available\n");
return 83;
}
- return dump_offload(rx, tx, sg, tso, ufo);
+ return dump_offload(rx, tx, sg, tso, ufo, gso);
}
static int do_soffload(int fd, struct ifreq *ifr)
@@ -1516,6 +1531,17 @@ static int do_soffload(int fd, struct if
return 89;
}
}
+ if (off_gso_wanted >= 0) {
+ changed = 1;
+ eval.cmd = ETHTOOL_SGSO;
+ eval.data = (off_gso_wanted == 1);
+ ifr->ifr_data = (caddr_t)&eval;
+ err = ioctl(fd, SIOCETHTOOL, ifr);
+ if (err) {
+ perror("Cannot set device generic segmentation offload
settings");
+ return 90;
+ }
+ }
if (!changed) {
fprintf(stdout, "no offload settings changed\n");
}
--yoshfuji
-
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