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| author | Martin Peschke <mp3@de.ibm.com> | 2008-03-27 14:21:55 +0100 |
|---|---|---|
| committer | James Bottomley <James.Bottomley@HansenPartnership.com> | 2008-04-07 19:19:03 +0200 |
| commit | c15450e33d198334291d50b5a95337c6b90cdab0 (patch) | |
| tree | cabb41b4c3f441beba520aabb4d28007b6c86718 /drivers/s390/scsi | |
| parent | [SCSI] scsi_debug: fix lba and data length calculation bugs (diff) | |
| download | linux-c15450e33d198334291d50b5a95337c6b90cdab0.tar.xz linux-c15450e33d198334291d50b5a95337c6b90cdab0.zip | |
[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>
Diffstat (limited to 'drivers/s390/scsi')
| -rw-r--r-- | drivers/s390/scsi/zfcp_dbf.c | 18 |
1 files changed, 18 insertions, 0 deletions
diff --git a/drivers/s390/scsi/zfcp_dbf.c b/drivers/s390/scsi/zfcp_dbf.c index 701046c9bb33..0faadb0cda24 100644 --- a/drivers/s390/scsi/zfcp_dbf.c +++ b/drivers/s390/scsi/zfcp_dbf.c @@ -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) { |