Add crc32c checksum

[fio.git] / verify.c

diff --git a/verify.c b/verify.c
index 680e49105480b6f76fecff85876ffd097eca18a7..afb4cb7d4afbda3a896c34ab4da805c52238a26e 100644 (file)
--- a/verify.c
+++ b/verify.c
@@ -11,6 +11,7 @@
 #include "crc/md5.h"
 #include "crc/crc64.h"
 #include "crc/crc32.h"
+#include "crc/crc32c.h"
 #include "crc/crc16.h"
 #include "crc/crc7.h"
 #include "crc/sha256.h"
@@ -125,6 +126,7 @@ static inline unsigned int __hdr_size(int verify_type)
        case VERIFY_CRC64:
                len = sizeof(struct vhdr_crc64);
                break;
+       case VERIFY_CRC32C:
        case VERIFY_CRC32:
                len = sizeof(struct vhdr_crc32);
                break;
@@ -326,6 +328,27 @@ static int verify_io_u_crc32(struct verify_header *hdr, struct io_u *io_u,
        return 0;
 }
 
+static int verify_io_u_crc32c(struct verify_header *hdr, struct io_u *io_u,
+                             unsigned int header_num)
+{
+       void *p = io_u_verify_off(hdr, io_u, header_num);
+       struct vhdr_crc32 *vh = hdr_priv(hdr);
+       uint32_t c;
+
+       dprint(FD_VERIFY, "crc32c verify io_u %p, len %u\n", io_u, hdr->len);
+
+       c = crc32c(p, hdr->len - hdr_size(hdr));
+
+       if (c != vh->crc32) {
+               log_err("crc32c: verify failed at %llu/%u\n",
+                               io_u->offset + header_num * hdr->len, hdr->len);
+               log_err("crc32c: wanted %x, got %x\n", vh->crc32, c);
+               return EIO;
+       }
+
+       return 0;
+}
+
 static int verify_io_u_md5(struct verify_header *hdr, struct io_u *io_u,
                           unsigned int header_num)
 {
@@ -442,6 +465,9 @@ int verify_io_u(struct thread_data *td, struct io_u *io_u)
                case VERIFY_CRC64:
                        ret = verify_io_u_crc64(hdr, io_u, hdr_num);
                        break;
+               case VERIFY_CRC32C:
+                       ret = verify_io_u_crc32c(hdr, io_u, hdr_num);
+                       break;
                case VERIFY_CRC32:
                        ret = verify_io_u_crc32(hdr, io_u, hdr_num);
                        break;
@@ -527,6 +553,13 @@ static void fill_crc32(struct verify_header *hdr, void *p, unsigned int len)
        vh->crc32 = crc32(p, len);
 }
 
+static void fill_crc32c(struct verify_header *hdr, void *p, unsigned int len)
+{
+       struct vhdr_crc32 *vh = hdr_priv(hdr);
+
+       vh->crc32 = crc32c(p, len);
+}
+
 static void fill_crc64(struct verify_header *hdr, void *p, unsigned int len)
 {
        struct vhdr_crc64 *vh = hdr_priv(hdr);
@@ -584,6 +617,11 @@ void populate_verify_io_u(struct thread_data *td, struct io_u *io_u)
                                                        io_u, hdr->len);
                        fill_crc64(hdr, data, data_len);
                        break;
+               case VERIFY_CRC32C:
+                       dprint(FD_VERIFY, "fill crc32c io_u %p, len %u\n",
+                                                       io_u, hdr->len);
+                       fill_crc32c(hdr, data, data_len);
+                       break;
                case VERIFY_CRC32:
                        dprint(FD_VERIFY, "fill crc32 io_u %p, len %u\n",
                                                        io_u, hdr->len);