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Message-Id: <1304378957-24123-1-git-send-email-anirban.chakraborty@qlogic.com>
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
--
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