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[SCSI] zfcp: Introduce a helper function that dumps hex data to a zfcp trace. 

Signed-off-by: Martin Peschke <mp3@de.ibm.com>
Signed-off-by: Christof Schmitt <christof.schmitt@de.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@HansenPartnership.com>
This commit is contained in:
Martin Peschke 2008-03-27 14:21:55 +01:00 committed by James Bottomley
parent d5cdc9898b
commit c15450e33d
1 changed files with 18 additions and 0 deletions
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18
drivers/s390/scsi/zfcp_dbf.c
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@ -31,6 +31,24 @@ MODULE_PARM_DESC(dbfsize,
#define ZFCP_LOG_AREA ZFCP_LOG_AREA_OTHER
static void zfcp_dbf_hexdump(debug_info_t *dbf, void *to, int to_len,
int level, char *from, int from_len)
{
int offset;
struct zfcp_dbf_dump *dump = to;
int room = to_len - sizeof(*dump);
for (offset = 0; offset < from_len; offset += dump->size) {
memset(to, 0, to_len);
strncpy(dump->tag, "dump", ZFCP_DBF_TAG_SIZE);
dump->total_size = from_len;
dump->offset = offset;
dump->size = min(from_len - offset, room);
memcpy(dump->data, from + offset, dump->size);
debug_event(dbf, level, dump, dump->size);
}
}
static int
zfcp_dbf_stck(char *out_buf, const char *label, unsigned long long stck)
{