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-rw-r--r--ethtool.8.in8
-rw-r--r--ethtool.c55
2 files changed, 53 insertions, 10 deletions
diff --git a/ethtool.8.in b/ethtool.8.in
index 7253832..3208d38 100644
--- a/ethtool.8.in
+++ b/ethtool.8.in
@@ -229,6 +229,7 @@ ethtool \- query or control network driver and hardware settings
.BI speed \ N
.B2 duplex half full
.B4 port tp aui bnc mii fibre
+.B3 mdix auto on off
.B2 autoneg on off
.BN advertise
.BN phyad
@@ -521,6 +522,13 @@ Sets full or half duplex mode.
.A4 port tp aui bnc mii fibre
Selects device port.
.TP
+.A3 mdix auto on off
+Selects MDI-X mode for port. May be used to override the automatic detection
+feature of most adapters. Auto means automatic detection of MDI status, on
+forces MDI-X (crossover) mode, while off means MDI (straight through) mode.
+The driver should guarantee that this command takes effect immediately, and
+if necessary may reset the link to cause the change to take effect.
+.TP
.A2 autoneg on off
Specifies whether autonegotiation should be enabled. Autonegotiation
is enabled by default, but in some network devices may have trouble
diff --git a/ethtool.c b/ethtool.c
index e573357..e21b7cb 100644
--- a/ethtool.c
+++ b/ethtool.c
@@ -18,6 +18,8 @@
* Rx Network Flow Control configuration support <santwona.behera@sun.com>
* Various features by Ben Hutchings <bhutchings@solarflare.com>;
* Copyright 2009, 2010 Solarflare Communications
+ * MDI-X set support by Jesse Brandeburg <jesse.brandeburg@intel.com>
+ * Copyright 2012 Intel Corporation
*
* TODO:
* * show settings for all devices
@@ -602,16 +604,25 @@ static int dump_ecmd(struct ethtool_cmd *ep)
if (ep->port == PORT_TP) {
fprintf(stdout, " MDI-X: ");
- switch (ep->eth_tp_mdix) {
- case ETH_TP_MDI:
- fprintf(stdout, "off\n");
- break;
- case ETH_TP_MDI_X:
- fprintf(stdout, "on\n");
- break;
- default:
- fprintf(stdout, "Unknown\n");
- break;
+ if (ep->eth_tp_mdix_ctrl == ETH_TP_MDI) {
+ fprintf(stdout, "off (forced)\n");
+ } else if (ep->eth_tp_mdix_ctrl == ETH_TP_MDI_X) {
+ fprintf(stdout, "on (forced)\n");
+ } else {
+ switch (ep->eth_tp_mdix) {
+ case ETH_TP_MDI:
+ fprintf(stdout, "off");
+ break;
+ case ETH_TP_MDI_X:
+ fprintf(stdout, "on");
+ break;
+ default:
+ fprintf(stdout, "Unknown");
+ break;
+ }
+ if (ep->eth_tp_mdix_ctrl == ETH_TP_MDI_AUTO)
+ fprintf(stdout, " (auto)");
+ fprintf(stdout, "\n");
}
}
@@ -2199,6 +2210,7 @@ static int do_sset(struct cmd_context *ctx)
int speed_wanted = -1;
int duplex_wanted = -1;
int port_wanted = -1;
+ int mdix_wanted = -1;
int autoneg_wanted = -1;
int phyad_wanted = -1;
int xcvr_wanted = -1;
@@ -2259,6 +2271,19 @@ static int do_sset(struct cmd_context *ctx)
port_wanted = PORT_FIBRE;
else
exit_bad_args();
+ } else if (!strcmp(argp[i], "mdix")) {
+ gset_changed = 1;
+ i += 1;
+ if (i >= argc)
+ exit_bad_args();
+ if (!strcmp(argp[i], "auto"))
+ mdix_wanted = ETH_TP_MDI_AUTO;
+ else if (!strcmp(argp[i], "on"))
+ mdix_wanted = ETH_TP_MDI_X;
+ else if (!strcmp(argp[i], "off"))
+ mdix_wanted = ETH_TP_MDI;
+ else
+ exit_bad_args();
} else if (!strcmp(argp[i], "autoneg")) {
i += 1;
if (i >= argc)
@@ -2380,6 +2405,13 @@ static int do_sset(struct cmd_context *ctx)
ecmd.duplex = duplex_wanted;
if (port_wanted != -1)
ecmd.port = port_wanted;
+ if (mdix_wanted != -1) {
+ /* check driver supports MDI-X */
+ if (ecmd.eth_tp_mdix_ctrl != ETH_TP_MDI_INVALID)
+ ecmd.eth_tp_mdix_ctrl = mdix_wanted;
+ else
+ fprintf(stderr, "setting MDI not supported\n");
+ }
if (autoneg_wanted != -1)
ecmd.autoneg = autoneg_wanted;
if (phyad_wanted != -1)
@@ -2439,6 +2471,8 @@ static int do_sset(struct cmd_context *ctx)
fprintf(stderr, " not setting phy_address\n");
if (xcvr_wanted != -1)
fprintf(stderr, " not setting transceiver\n");
+ if (mdix_wanted != -1)
+ fprintf(stderr, " not setting mdix\n");
}
}
@@ -3604,6 +3638,7 @@ static const struct option {
" [ speed %d ]\n"
" [ duplex half|full ]\n"
" [ port tp|aui|bnc|mii|fibre ]\n"
+ " [ mdix auto|on|off ]\n"
" [ autoneg on|off ]\n"
" [ advertise %x ]\n"
" [ phyad %d ]\n"