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Message-Id: <1295390237-27381-1-git-send-email-maheshb@google.com>
Date: Tue, 18 Jan 2011 14:37:17 -0800
From: Mahesh Bandewar <maheshb@...gle.com>
To: Ben Hutchings <bhutchings@...arflare.com>
Cc: David Miller <davem@...emloft.net>,
Tom Herbert <therbert@...gle.com>,
Laurent Chavey <chavey@...gle.com>,
netdev <netdev@...r.kernel.org>,
Mahesh Bandewar <maheshb@...gle.com>
Subject: [PATCH v2] ethtool : Add option -L | --set-common to set common flags.
This patch adds -L | --set-common option to add / remove common flags which
includes loopback flag. The -l | --show-common displays the current values
for these common flags.
Signed-off-by: Mahesh Bandewar <maheshb@...gle.com>
---
ethtool-copy.h | 1 +
ethtool.8.in | 16 ++++++++++
ethtool.c | 84 ++++++++++++++++++++++++++++++++++++++++++++++++++++++++
3 files changed, 101 insertions(+), 0 deletions(-)
diff --git a/ethtool-copy.h b/ethtool-copy.h
index 75c3ae7..5fd18c7 100644
--- a/ethtool-copy.h
+++ b/ethtool-copy.h
@@ -309,6 +309,7 @@ struct ethtool_perm_addr {
* flag differs from the read-only value.
*/
enum ethtool_flags {
+ ETH_FLAG_LOOPBACK = (1 << 2), /* Loopback enable / disable */
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 */
diff --git a/ethtool.8.in b/ethtool.8.in
index 0ee91a0..b9f8892 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in
@@ -211,6 +211,13 @@ ethtool \- query or control network driver and hardware settings
.B2 txvlan on off
.B2 rxhash on off
+.B ethtool \-l|\-\-show\-common
+.I ethX
+
+.B ethtool \-L|\-\-set\-common
+.I ethX
+.B2 loopback on off
+
.B ethtool \-p|\-\-identify
.I ethX
.RI [ N ]
@@ -444,6 +451,15 @@ Specifies whether TX VLAN acceleration should be enabled
.A2 rxhash on off
Specifies whether receive hashing offload should be enabled
.TP
+.B \-l \-\-show\-common
+Queries the specified network device for common flag settings.
+.TP
+.B \-L \-\-set\-common
+Changes the common parameters of the specified network device.
+.TP
+.A2 loopback on off
+Specifies whether loopback should be 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 1afdfe4..0e234ea 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -97,6 +97,8 @@ static int do_gcoalesce(int fd, struct ifreq *ifr);
static int do_scoalesce(int fd, struct ifreq *ifr);
static int do_goffload(int fd, struct ifreq *ifr);
static int do_soffload(int fd, struct ifreq *ifr);
+static int do_gcommon(int fd, struct ifreq *ifr);
+static int do_scommon(int fd, struct ifreq *ifr);
static int do_gstats(int fd, struct ifreq *ifr);
static int rxflow_str_to_type(const char *str);
static int parse_rxfhashopts(char *optstr, u32 *data);
@@ -142,6 +144,8 @@ static enum {
MODE_GNTUPLE,
MODE_FLASHDEV,
MODE_PERMADDR,
+ MODE_GCOMMON,
+ MODE_SCOMMON,
} mode = MODE_GSET;
static struct option {
@@ -211,6 +215,10 @@ static struct option {
" [ ntuple on|off ]\n"
" [ rxhash on|off ]\n"
},
+ { "-l", "--show-common", MODE_GCOMMON, "Get common flags information" },
+ { "-L", "--set-common", MODE_SCOMMON, "Set common flags",
+ " [ loopback on|off ]\n"
+ },
{ "-i", "--driver", MODE_GDRV, "Show driver information" },
{ "-d", "--register-dump", MODE_GREGS, "Do a register dump",
" [ raw on|off ]\n"
@@ -309,6 +317,10 @@ static u32 off_flags_wanted = 0;
static u32 off_flags_mask = 0;
static int off_gro_wanted = -1;
+static int gcommon_changed = 0;
+static u32 common_flags_wanted = 0;
+static u32 common_flags_mask = 0;
+
static struct ethtool_pauseparam epause;
static int gpause_changed = 0;
static int pause_autoneg_wanted = -1;
@@ -482,6 +494,11 @@ static struct cmdline_info cmdline_offload[] = {
ETH_FLAG_RXHASH, &off_flags_mask },
};
+static struct cmdline_info cmdline_commonflags[] = {
+ { "loopback", CMDL_FLAG, &common_flags_wanted, NULL,
+ ETH_FLAG_LOOPBACK, &common_flags_mask },
+};
+
static struct cmdline_info cmdline_pause[] = {
{ "autoneg", CMDL_BOOL, &pause_autoneg_wanted, &epause.autoneg },
{ "rx", CMDL_BOOL, &pause_rx_wanted, &epause.rx_pause },
@@ -829,6 +846,8 @@ static void parse_cmdline(int argc, char **argp)
(mode == MODE_SRING) ||
(mode == MODE_GOFFLOAD) ||
(mode == MODE_SOFFLOAD) ||
+ (mode == MODE_GCOMMON) ||
+ (mode == MODE_SCOMMON) ||
(mode == MODE_GSTATS) ||
(mode == MODE_GNFC) ||
(mode == MODE_SNFC) ||
@@ -919,6 +938,14 @@ static void parse_cmdline(int argc, char **argp)
i = argc;
break;
}
+ if (mode == MODE_SCOMMON) {
+ parse_generic_cmdline(argc, argp, i,
+ &gcommon_changed,
+ cmdline_commonflags,
+ ARRAY_SIZE(cmdline_offload));
+ i = argc;
+ break;
+ }
if (mode == MODE_SNTUPLE) {
if (!strcmp(argp[i], "flow-type")) {
i += 1;
@@ -1905,6 +1932,13 @@ static int dump_offload(int rx, int tx, int sg, int tso, int ufo, int gso,
return 0;
}
+static int dump_common_flags(int loopback)
+{
+ fprintf(stdout, "loopback: %s\n", loopback ? "on" : "off");
+
+ return 0;
+}
+
static int dump_rxfhash(int fhash, u64 val)
{
switch (fhash) {
@@ -1998,6 +2032,10 @@ static int doit(void)
return do_goffload(fd, &ifr);
} else if (mode == MODE_SOFFLOAD) {
return do_soffload(fd, &ifr);
+ } else if (mode == MODE_GCOMMON) {
+ return do_gcommon(fd, &ifr);
+ } else if (mode == MODE_SCOMMON) {
+ return do_scommon(fd, &ifr);
} else if (mode == MODE_GSTATS) {
return do_gstats(fd, &ifr);
} else if (mode == MODE_GNFC) {
@@ -2219,6 +2257,52 @@ static int do_scoalesce(int fd, struct ifreq *ifr)
return 0;
}
+static int do_gcommon(int fd, struct ifreq *ifr)
+{
+ struct ethtool_value eval;
+ int loopback = 0;
+
+ fprintf(stdout, "Common flags for %s:\n", devname);
+
+ eval.cmd = ETHTOOL_GFLAGS;
+ ifr->ifr_data = (caddr_t)&eval;
+ if (ioctl(fd, SIOCETHTOOL, ifr)) {
+ perror("Cannot get device flags");
+ } else {
+ loopback = (eval.data & ETH_FLAG_LOOPBACK) != 0;
+ }
+
+ return dump_common_flags(loopback);
+}
+
+static int do_scommon(int fd, struct ifreq *ifr)
+{
+ struct ethtool_value eval;
+
+ if (common_flags_mask) {
+ eval.cmd = ETHTOOL_GFLAGS;
+ eval.data = 0;
+ ifr->ifr_data = (caddr_t)&eval;
+ if (ioctl(fd, SIOCETHTOOL, ifr)) {
+ perror("Cannot get device common flags");
+ return 1;
+ }
+
+ eval.cmd = ETHTOOL_SFLAGS;
+ eval.data = ((eval.data & ~common_flags_mask) |
+ common_flags_wanted);
+
+ if (ioctl(fd, SIOCETHTOOL, ifr)) {
+ perror("Cannot set device common flags");
+ return 1;
+ }
+ } else {
+ fprintf(stdout, "No common settings changed\n");
+ }
+
+ return 0;
+}
+
static int do_goffload(int fd, struct ifreq *ifr)
{
struct ethtool_value eval;
--
1.7.3.1
--
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