From c85a502081ef76aef0a9e9fb9af65257c2e415a2 Mon Sep 17 00:00:00 2001 From: Felix Fietkau Date: Sun, 22 Jan 2012 18:18:50 +0100 Subject: [PATCH] query available/used device speeds via ethtool --- system-linux.c | 49 ++++++++++++++++++++++++++++++++++++++++++++++++- 1 file changed, 48 insertions(+), 1 deletion(-) diff --git a/system-linux.c b/system-linux.c index 1fcf22f..2150c44 100644 --- a/system-linux.c +++ b/system-linux.c @@ -9,6 +9,7 @@ #include #include #include +#include #include #include @@ -683,10 +684,35 @@ read_int_file(int dir_fd, const char *file, int *val) return ret; } +/* Assume advertised flags == supported flags */ +static const struct { + uint32_t mask; + const char *name; +} ethtool_link_modes[] = { + { ADVERTISED_10baseT_Half, "10H" }, + { ADVERTISED_10baseT_Full, "10F" }, + { ADVERTISED_100baseT_Half, "100H" }, + { ADVERTISED_100baseT_Full, "100F" }, + { ADVERTISED_1000baseT_Half, "1000H" }, + { ADVERTISED_1000baseT_Full, "1000F" }, +}; + +static void system_add_link_modes(struct blob_buf *b, __u32 mask) +{ + int i; + for (i = 0; i < ARRAY_SIZE(ethtool_link_modes); i++) { + if (mask & ethtool_link_modes[i].mask) + blobmsg_add_string(b, NULL, ethtool_link_modes[i].name); + } +} + int system_if_dump_info(struct device *dev, struct blob_buf *b) { - char buf[64]; + struct ethtool_cmd ecmd; + struct ifreq ifr; + char buf[64], *s; + void *c; int dir_fd, val = 0; snprintf(buf, sizeof(buf), "/sys/class/net/%s", dev->ifname); @@ -697,6 +723,27 @@ system_if_dump_info(struct device *dev, struct blob_buf *b) if (read_string_file(dir_fd, "address", buf, sizeof(buf))) blobmsg_add_string(b, "macaddr", buf); + memset(&ecmd, 0, sizeof(ecmd)); + memset(&ifr, 0, sizeof(ifr)); + strcpy(ifr.ifr_name, dev->ifname); + ifr.ifr_data = (caddr_t) &ecmd; + ecmd.cmd = ETHTOOL_GSET; + + if (ioctl(sock_ioctl, SIOCETHTOOL, &ifr) == 0) { + c = blobmsg_open_array(b, "link-advertising"); + system_add_link_modes(b, ecmd.advertising); + blobmsg_close_array(b, c); + + c = blobmsg_open_array(b, "link-supported"); + system_add_link_modes(b, ecmd.supported); + blobmsg_close_array(b, c); + + s = blobmsg_alloc_string_buffer(b, "speed", 8); + snprintf(s, 8, "%d%c", ethtool_cmd_speed(&ecmd), + ecmd.duplex == DUPLEX_HALF ? 'H' : 'F'); + blobmsg_add_string_buffer(b); + } + close(dir_fd); return 0; } -- 2.30.2