From 1d077f0b42d91daad0473258f0f8c58efacda71b Mon Sep 17 00:00:00 2001 From: Ananda Raju Date: Tue, 14 Mar 2006 15:15:18 -0500 Subject: [PATCH] UFO patch Hi, Kernel version 2.6.15 onwards provides UDP Fragmentation Offload (UFO) This patch to ethtool provides UFO (UDP Fragmentation Offload) on/off support using -K option similar to feature TSO. To find out whether UFO is enabled or not use #ethtool -k eth3 Offload parameters for eth3: rx-checksumming: on tx-checksumming: on scatter-gather: on tcp segmentation offload: on udp fragmentation offload: on # To turn off UFO use following command. #ethtool -K eth3 ufo off To turn off UFO use following command. #ethtool -K eth3 ufo on Please review the patch. Signed-off-by: Ananda Raju Signed-off-by: Jeff Garzik --- ethtool-copy.h | 2 ++ ethtool.8 | 4 ++++ ethtool.c | 38 ++++++++++++++++++++++++++++++++------ 3 files changed, 38 insertions(+), 6 deletions(-) diff --git a/ethtool-copy.h b/ethtool-copy.h index 41aae0d..d696de3 100644 --- a/ethtool-copy.h +++ b/ethtool-copy.h @@ -283,6 +283,8 @@ struct ethtool_stats { #define ETHTOOL_GSTATS 0x0000001d /* get NIC-specific statistics */ #define ETHTOOL_GTSO 0x0000001e /* Get TSO enable (ethtool_value) */ #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) */ /* compatibility with older code */ #define SPARC_ETH_GSET ETHTOOL_GSET diff --git a/ethtool.8 b/ethtool.8 index 06bf1f0..baecd64 100644 --- a/ethtool.8 +++ b/ethtool.8 @@ -153,6 +153,7 @@ ethtool \- Display or change ethernet card settings .B2 tx on off .B2 sg on off .B2 tso on off +.B2 ufo on off .B ethtool \-p|\-\-blink .I ethX @@ -272,6 +273,9 @@ Specify if scatter-gather is enabled. .A2 tso on off Specify if tcp segmentation offload is enabled. .TP +.A2 ufo on off +Specify if UDP fragmentation 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 cc204ab..7d408be 100644 --- a/ethtool.c +++ b/ethtool.c @@ -144,7 +144,8 @@ static struct option { " [ rx on|off ]\n" " [ tx on|off ]\n" " [ sg on|off ]\n" - " [ tso on|off ]\n" }, + " [ tso on|off ]\n" + " [ ufo 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", @@ -189,6 +190,7 @@ static int off_csum_rx_wanted = -1; 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 struct ethtool_pauseparam epause; static int gpause_changed = 0; @@ -292,6 +294,7 @@ static struct cmdline_info cmdline_offload[] = { { "tx", CMDL_BOOL, &off_csum_tx_wanted, NULL }, { "sg", CMDL_BOOL, &off_sg_wanted, NULL }, { "tso", CMDL_BOOL, &off_tso_wanted, NULL }, + { "ufo", CMDL_BOOL, &off_ufo_wanted, NULL }, }; static struct cmdline_info cmdline_pause[] = { @@ -1112,17 +1115,19 @@ static int dump_coalesce(void) return 0; } -static int dump_offload (int rx, int tx, int sg, int tso) +static int dump_offload (int rx, int tx, int sg, int tso, int ufo) { fprintf(stdout, "rx-checksumming: %s\n" "tx-checksumming: %s\n" "scatter-gather: %s\n" - "tcp segmentation offload: %s\n", + "tcp segmentation offload: %s\n" + "udp fragmentation offload: %s\n", rx ? "on" : "off", tx ? "on" : "off", sg ? "on" : "off", - tso ? "on" : "off"); + tso ? "on" : "off", + ufo ? "on" : "off"); return 0; } @@ -1386,7 +1391,7 @@ static int do_scoalesce(int fd, struct ifreq *ifr) 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; + int err, allfail = 1, rx = 0, tx = 0, sg = 0, tso = 0, ufo = 0; fprintf(stdout, "Offload parameters for %s:\n", devname); @@ -1430,12 +1435,22 @@ static int do_goffload(int fd, struct ifreq *ifr) allfail = 0; } + eval.cmd = ETHTOOL_GUFO; + ifr->ifr_data = (caddr_t)&eval; + err = ioctl(fd, SIOCETHTOOL, ifr); + if (err) + perror("Cannot get device udp large send offload settings"); + else { + ufo = eval.data; + allfail = 0; + } + if (allfail) { fprintf(stdout, "no offload info available\n"); return 83; } - return dump_offload(rx, tx, sg, tso); + return dump_offload(rx, tx, sg, tso, ufo); } static int do_soffload(int fd, struct ifreq *ifr) @@ -1490,6 +1505,17 @@ static int do_soffload(int fd, struct ifreq *ifr) return 88; } } + if (off_ufo_wanted >= 0) { + changed = 1; + eval.cmd = ETHTOOL_SUFO; + eval.data = (off_ufo_wanted == 1); + ifr->ifr_data = (caddr_t)&eval; + err = ioctl(fd, SIOCETHTOOL, ifr); + if (err) { + perror("Cannot set device udp large send offload settings"); + return 89; + } + } if (!changed) { fprintf(stdout, "no offload settings changed\n"); } -- cgit v1.2.1