Add crc7 verify type
Signed-off-by: Jens Axboe <jens.axboe@oracle.com>
diff --git a/verify.c b/verify.c
index cca070c..492cc91 100644
--- a/verify.c
+++ b/verify.c
@@ -42,6 +42,23 @@
log_info("\n");
}
+static int verify_io_u_crc7(struct verify_header *hdr, struct io_u *io_u)
+{
+ unsigned char *p = io_u->buf;
+ unsigned char c;
+
+ p += sizeof(*hdr);
+ c = crc7(p, hdr->len - sizeof(*hdr));
+
+ if (c != hdr->crc7) {
+ log_err("crc7: verify failed at %llu/%lu\n", io_u->offset, io_u->buflen);
+ log_err("crc7: wanted %x, got %x\n", hdr->crc7, c);
+ return 1;
+ }
+
+ return 0;
+}
+
static int verify_io_u_crc16(struct verify_header *hdr, struct io_u *io_u)
{
unsigned char *p = io_u->buf;
@@ -114,6 +131,8 @@
ret = verify_io_u_crc32(hdr, io_u);
else if (hdr->verify_type == VERIFY_CRC16)
ret = verify_io_u_crc16(hdr, io_u);
+ else if (hdr->verify_type == VERIFY_CRC7)
+ ret = verify_io_u_crc7(hdr, io_u);
else {
log_err("Bad verify type %u\n", hdr->verify_type);
ret = 1;
@@ -125,6 +144,11 @@
return 0;
}
+static void fill_crc7(struct verify_header *hdr, void *p, unsigned int len)
+{
+ hdr->crc7 = crc7(p, len);
+}
+
static void fill_crc16(struct verify_header *hdr, void *p, unsigned int len)
{
hdr->crc16 = crc16(p, len);
@@ -170,6 +194,9 @@
} else if (td->o.verify == VERIFY_CRC16) {
fill_crc16(&hdr, p, io_u->buflen - sizeof(hdr));
hdr.verify_type = VERIFY_CRC16;
+ } else if (td->o.verify == VERIFY_CRC7) {
+ fill_crc7(&hdr, p, io_u->buflen - sizeof(hdr));
+ hdr.verify_type = VERIFY_CRC7;
}
memcpy(io_u->buf, &hdr, sizeof(hdr));