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Date: Mon, 2 May 2011 16:29:16 -0700 From: anirban.chakraborty@...gic.com To: netdev@...r.kernel.org Cc: --no-chain-reply-to@...qlogic.com, bhutchings@...arflare.com, davem@...emloft.net, Anirban Chakraborty <anirban.chakraborty@...gic.com> Subject: [ethtool PATCH] FW dump support From: Anirban Chakraborty <anirban.chakraborty@...gic.com> Added support to take FW dump via ethtool. Signed-off-by: Anirban Chakraborty <anirban.chakraborty@...gic.com> --- ethtool-copy.h | 17 ++++++++- ethtool.c | 113 +++++++++++++++++++++++++++++++++++++++++++++++++++++++- 2 files changed, 127 insertions(+), 3 deletions(-) diff --git a/ethtool-copy.h b/ethtool-copy.h index 5b45442..0c0e847 100644 --- a/ethtool-copy.h +++ b/ethtool-copy.h @@ -76,6 +76,19 @@ struct ethtool_drvinfo { __u32 regdump_len; /* Size of data from ETHTOOL_GREGS (bytes) */ }; +/* dump struct + * cmd: commnad to identify type of operation + * flag: specify dump related options + * len: length of dumped data + * data: dump data + */ +struct ethtool_dump { + __u32 cmd; + __u32 flag; + __u32 len; + __u8 data[0]; +}; + #define SOPASS_MAX 6 /* wake-on-lan settings */ struct ethtool_wolinfo { @@ -538,7 +551,6 @@ struct ethtool_flash { char data[ETHTOOL_FLASH_MAX_FILENAME]; }; - /* CMDs currently supported */ #define ETHTOOL_GSET 0x00000001 /* Get settings. */ #define ETHTOOL_SSET 0x00000002 /* Set settings. */ @@ -599,6 +611,9 @@ struct ethtool_flash { #define ETHTOOL_GSSET_INFO 0x00000037 /* Get string set info */ #define ETHTOOL_GRXFHINDIR 0x00000038 /* Get RX flow hash indir'n table */ #define ETHTOOL_SRXFHINDIR 0x00000039 /* Set RX flow hash indir'n table */ +#define ETHTOOL_SET_DUMP 0x0000003e /* Set dump settings */ +#define ETHTOOL_GET_DUMP 0x0000003f /* Get dump settings */ +#define ETHTOOL_GET_DUMP_DATA 0x00000040 /* Get dump data */ /* compatibility with older code */ #define SPARC_ETH_GSET ETHTOOL_GSET diff --git a/ethtool.c b/ethtool.c index cfdac65..1a826ae 100644 --- a/ethtool.c +++ b/ethtool.c @@ -28,6 +28,7 @@ #include <sys/types.h> #include <string.h> #include <stdlib.h> +#include <stddef.h> #include <sys/types.h> #include <sys/ioctl.h> #include <sys/stat.h> @@ -110,6 +111,9 @@ static int do_srxntuple(int fd, struct ifreq *ifr); static int do_grxntuple(int fd, struct ifreq *ifr); static int do_flash(int fd, struct ifreq *ifr); static int do_permaddr(int fd, struct ifreq *ifr); +static int do_getdump(int fd, struct ifreq *ifr); +static int do_getdumpdata(int fd, struct ifreq *ifr); +static int do_setdump(int fd, struct ifreq *ifr); static int send_ioctl(int fd, struct ifreq *ifr); @@ -142,6 +146,9 @@ static enum { MODE_GNTUPLE, MODE_FLASHDEV, MODE_PERMADDR, + MODE_SET_DUMP, + MODE_GET_DUMP, + MODE_GET_DUMP_DATA, } mode = MODE_GSET; static struct option { @@ -263,6 +270,12 @@ static struct option { "Get Rx ntuple filters and actions\n" }, { "-P", "--show-permaddr", MODE_PERMADDR, "Show permanent hardware address" }, + { "-W", "--get-dump", MODE_GET_DUMP, + "Get dump level\n" }, + { "-Wd", "--get-dump-data", MODE_GET_DUMP_DATA, + "Get dump data", "FILENAME " "Name of the dump file\n" }, + { "-w", "--set-dump", MODE_SET_DUMP, + "Set dump level", "DUMPLEVEL " "Dump level for the device\n" }, { "-h", "--help", MODE_HELP, "Show this help" }, { NULL, "--version", MODE_VERSION, "Show version number" }, {} @@ -413,6 +426,8 @@ static int flash_region = -1; static int msglvl_changed; static u32 msglvl_wanted = 0; static u32 msglvl_mask = 0; +static u32 dump_flag; +static char *dump_file = NULL; static enum { ONLINE=0, @@ -852,7 +867,10 @@ static void parse_cmdline(int argc, char **argp) (mode == MODE_GNTUPLE) || (mode == MODE_PHYS_ID) || (mode == MODE_FLASHDEV) || - (mode == MODE_PERMADDR)) { + (mode == MODE_PERMADDR) || + (mode == MODE_SET_DUMP) || + (mode == MODE_GET_DUMP_DATA) || + (mode == MODE_GET_DUMP)) { devname = argp[i]; break; } @@ -874,6 +892,12 @@ static void parse_cmdline(int argc, char **argp) flash_file = argp[i]; flash = 1; break; + } else if (mode == MODE_SET_DUMP) { + dump_flag = get_u32(argp[i], 0); + break; + } else if (mode == MODE_GET_DUMP_DATA) { + dump_file = argp[i]; + break; } /* fallthrough */ default: @@ -2042,6 +2066,12 @@ static int doit(void) return do_flash(fd, &ifr); } else if (mode == MODE_PERMADDR) { return do_permaddr(fd, &ifr); + } else if (mode == MODE_GET_DUMP_DATA) { + return do_getdumpdata(fd, &ifr); + } else if (mode == MODE_GET_DUMP) { + return do_getdump(fd, &ifr); + } else if (mode == MODE_SET_DUMP) { + return do_setdump(fd, &ifr); } return 69; @@ -2679,7 +2709,6 @@ static int do_gregs(int fd, struct ifreq *ifr) perror("Cannot get driver information"); return 72; } - regs = calloc(1, sizeof(*regs)+drvinfo.regdump_len); if (!regs) { perror("Cannot allocate memory for register dump"); @@ -3241,6 +3270,86 @@ static int do_grxntuple(int fd, struct ifreq *ifr) return 0; } +static void do_writedump(struct ethtool_dump *dump) +{ + FILE *f = fopen(dump_file, "wb+"); + size_t bytes; + + if (!f ) { + fprintf(stderr, "Can't open file %s: %s\n", + dump_file, strerror(errno)); + return; + } + + bytes = fwrite(dump->data, 1, dump->len, f); + fclose(f); +} + +static int do_getdump(int fd, struct ifreq *ifr) +{ + struct ethtool_dump ddata; + int err; + + ddata.cmd = ETHTOOL_GET_DUMP; + ifr->ifr_data = (caddr_t) &ddata; + err = send_ioctl(fd, ifr); + if (err < 0) { + perror("Can not get dump flag"); + return 74; + } + fprintf(stdout, "Dump flag: 0x%x\n", ddata.flag); + return 0; +} + +static int do_getdumpdata(int fd, struct ifreq *ifr) +{ + int err; + struct ethtool_dump edata; + struct ethtool_dump *data; + + edata.cmd = ETHTOOL_GET_DUMP; + + ifr->ifr_data = (caddr_t) &edata; + err = send_ioctl(fd, ifr); + if (err < 0) { + perror("Can not get dump level"); + return 74; + } + data = calloc(1, offsetof(struct ethtool_dump, data)+edata.len); + if (!data) { + perror("Can not allocate enough memory"); + return 0; + } + data->cmd = ETHTOOL_GET_DUMP_DATA; + data->len = edata.len; + ifr->ifr_data = (caddr_t) data; + err = send_ioctl(fd, ifr); + if (err < 0) { + perror("Can not get dump data\n"); + goto free; + } + do_writedump(data); +free: + free(data); + return 0; +} + +static int do_setdump(int fd, struct ifreq *ifr) +{ + int err; + struct ethtool_dump dump; + + dump.cmd = ETHTOOL_SET_DUMP; + dump.flag = dump_flag; + ifr->ifr_data = (caddr_t)&dump; + err = send_ioctl(fd, ifr); + if (err < 0) { + perror("Can not set dump level"); + return 74; + } + return 0; +} + static int send_ioctl(int fd, struct ifreq *ifr) { return ioctl(fd, SIOCETHTOOL, ifr); -- 1.7.4.1 -- To unsubscribe from this list: send the line "unsubscribe netdev" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html
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