1 files changed, 24 insertions, 0 deletions
diff --git a/arch/riscv/lib/crc-t10dif.c b/arch/riscv/lib/crc-t10dif.c
new file mode 100644
index 000000000000..e6b0051ccd86
--- /dev/null
+++ b/arch/riscv/lib/crc-t10dif.c
@@ -0,0 +1,24 @@
+// SPDX-License-Identifier: GPL-2.0-or-later
+/*
+ * RISC-V optimized CRC-T10DIF function
+ *
+ * Copyright 2025 Google LLC
+ */
+
+#include <asm/hwcap.h>
+#include <asm/alternative-macros.h>
+#include <linux/crc-t10dif.h>
+#include <linux/module.h>
+
+#include "crc-clmul.h"
+
+u16 crc_t10dif_arch(u16 crc, const u8 *p, size_t len)
+{
+	if (riscv_has_extension_likely(RISCV_ISA_EXT_ZBC))
+		return crc16_msb_clmul(crc, p, len, &crc16_msb_0x8bb7_consts);
+	return crc_t10dif_generic(crc, p, len);
+}
+EXPORT_SYMBOL(crc_t10dif_arch);
+
+MODULE_DESCRIPTION("RISC-V optimized CRC-T10DIF function");
+MODULE_LICENSE("GPL");