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Date: Fri, 2 Sep 2011 13:50:30 -0700
From: Carolyn Wyborny <carolyn.wyborny@...el.com>
To: bhutchings@...arflare.com, davem@...emloft.net
Cc: netdev@...r.kernel.org
Subject: [RFC, 1/2] ethtool: Implement private flags interface for ethtool application.
This patch completes the user space implementation of the private
flags inteface in ethtool. Using -b/-B options.
Signed-off-by: Carolyn Wyborny <carolyn.wyborny@...el.com>
---
ethtool.8.in | 16 +++++++++
ethtool.c | 98 +++++++++++++++++++++++++++++++++++++++++++++++++++++++++-
2 files changed, 113 insertions(+), 1 deletions(-)
diff --git a/ethtool.8.in b/ethtool.8.in
index 7a0bd43..ebcb233 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in
@@ -134,6 +134,13 @@ ethtool \- query or control network driver and hardware settings
.B2 rx on off
.B2 tx on off
.HP
+.B ethtool \-b|\-\-show\-priv\-flags
+.I ethX
+.HP
+.B ethtool \-B|\-\-set\-priv\-flags
+.I ethX
+.BN bit
+.HP
.B ethtool \-c|\-\-show\-coalesce
.I ethX
.HP
@@ -342,6 +349,15 @@ Specifies whether RX pause should be enabled.
.A2 tx on off
Specifies whether TX pause should be enabled.
.TP
+.B \-b \-\-show\-priv_flags
+Queries the specified network device for private flags set.
+.TP
+.B \-B \-\-set\-priv_flags
+Changes the private flags of the specified network device.
+.TP
+.BI bit \ N
+Sets the specific bit number in the private flagsg field.
+.TP
.B \-c \-\-show\-coalesce
Queries the specified network device for coalescing information.
.TP
diff --git a/ethtool.c b/ethtool.c
index 943dfb7..4702d04 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -99,6 +99,8 @@ static int do_flash(int fd, struct ifreq *ifr);
static int do_permaddr(int fd, struct ifreq *ifr);
static int do_getfwdump(int fd, struct ifreq *ifr);
static int do_setfwdump(int fd, struct ifreq *ifr);
+static int do_gpflags(int fd, struct ifreq *ifr);
+static int do_spflags(int fd, struct ifreq *ifr);
static int send_ioctl(int fd, struct ifreq *ifr);
@@ -133,6 +135,8 @@ static enum {
MODE_PERMADDR,
MODE_SET_DUMP,
MODE_GET_DUMP,
+ MODE_GET_PFLAGS,
+ MODE_SET_PFLAGS,
} mode = MODE_GSET;
static struct option {
@@ -157,6 +161,9 @@ static struct option {
" [ autoneg on|off ]\n"
" [ rx on|off ]\n"
" [ tx on|off ]\n" },
+ { "-b", "--show-pflags", MODE_GET_PFLAGS, "Show private flags set." },
+ { "-B", "--set-pflags", MODE_SET_PFLAGS, "Set private flags.",
+ " [value N | bit N]\n" },
{ "-c", "--show-coalesce", MODE_GCOALESCE, "Show coalesce options" },
{ "-C", "--coalesce", MODE_SCOALESCE, "Set coalesce options",
" [adaptive-rx on|off]\n"
@@ -405,6 +412,11 @@ static int rx_class_rule_del = -1;
static int rx_class_rule_added = 0;
static struct ethtool_rx_flow_spec rx_rule_fs;
+static u32 priv_flags;
+static int priv_flags_changed;
+static u32 priv_flags_val_wanted;
+static u8 priv_flags_bit_wanted;
+
static enum {
ONLINE=0,
OFFLINE,
@@ -552,6 +564,10 @@ static struct cmdline_info cmdline_msglvl[] = {
NETIF_MSG_WOL, &msglvl_mask },
};
+static struct cmdline_info cmdline_pflags[] = {
+ { "value", CMDL_U32, &priv_flags_val_wanted, &priv_flags },
+};
+
static long long
get_int_range(char *str, int base, long long min, long long max)
{
@@ -800,7 +816,9 @@ static void parse_cmdline(int argc, char **argp)
(mode == MODE_FLASHDEV) ||
(mode == MODE_PERMADDR) ||
(mode == MODE_SET_DUMP) ||
- (mode == MODE_GET_DUMP)) {
+ (mode == MODE_GET_DUMP) ||
+ (mode == MODE_GET_PFLAGS) ||
+ (mode == MODE_SET_PFLAGS)) {
devname = argp[i];
break;
}
@@ -884,6 +902,28 @@ static void parse_cmdline(int argc, char **argp)
i = argc;
break;
}
+ if (mode == MODE_SET_PFLAGS) {
+ if (!strcmp(argp[i], "value")) {
+ priv_flags_changed = 1;
+ i++;
+ if (i >= argc)
+ exit_bad_args();
+ priv_flags_val_wanted =
+ get_u32(argp[i], 0);
+ } else if (!strcmp(argp[i], "bit")) {
+ priv_flags_changed = 1;
+ i++;
+ if (i >= argc)
+ exit_bad_args();
+ priv_flags_bit_wanted =
+ get_int(argp[i], 0);
+ priv_flags_val_wanted =
+ (1 >> priv_flags_bit_wanted);
+ } else
+ exit_bad_args();
+ i = argc;
+ break;
+ }
if (mode == MODE_SCLSRULE) {
if (!strcmp(argp[i], "flow-type")) {
i += 1;
@@ -1957,6 +1997,10 @@ static int doit(void)
return do_getfwdump(fd, &ifr);
} else if (mode == MODE_SET_DUMP) {
return do_setfwdump(fd, &ifr);
+ } else if (mode == MODE_GET_PFLAGS) {
+ return do_gpflags(fd, &ifr);
+ } else if (mode == MODE_SET_PFLAGS) {
+ return do_spflags(fd, &ifr);
}
return 69;
@@ -3346,6 +3390,58 @@ static int do_setfwdump(int fd, struct ifreq *ifr)
return 0;
}
+static int do_gpflags(int fd, struct ifreq *ifr)
+{
+ int err;
+ struct ethtool_value eval;
+
+ eval.cmd = ETHTOOL_GPFLAGS;
+ ifr->ifr_data = (caddr_t)&eval;
+ err = send_ioctl(fd, ifr);
+ if (err) {
+ perror("Cannot get device private flags");
+ } else {
+ fprintf(stdout, " Current flags set: 0x%08x (%d)\n"
+ " ",
+ eval.data, eval.data);
+ print_flags(cmdline_pflags, ARRAY_SIZE(cmdline_pflags),
+ eval.data);
+ fprintf(stdout, "\n");
+ }
+ return err;
+}
+
+static int do_spflags(int fd, struct ifreq *ifr)
+{
+ struct ethtool_value eval;
+ int err, changed = 0;
+ eval.cmd = ETHTOOL_GPFLAGS;
+ ifr->ifr_data = (caddr_t)&eval;
+ err = send_ioctl(fd, ifr);
+ if (err) {
+ perror("Cannot get device private flags");
+ return err;
+ }
+
+ priv_flags = eval.data;
+ do_generic_set(cmdline_pflags, ARRAY_SIZE(cmdline_pflags),
+ &changed);
+ if (!changed) {
+ fprintf(stderr, "No private flags have changed, aborting\n");
+ return 1;
+ } else {
+ eval.cmd = ETHTOOL_SPFLAGS;
+ eval.data = priv_flags_val_wanted;
+ ifr->ifr_data = (caddr_t)&eval;
+ err = send_ioctl(fd, ifr);
+ if (err) {
+ perror("Cannot set device private flags.\n");
+ return err;
+ }
+ return 0;
+ }
+}
+
static int send_ioctl(int fd, struct ifreq *ifr)
{
return ioctl(fd, SIOCETHTOOL, ifr);
--
1.7.4.4
--
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