nvme: add transport SGL definitions

Add transport SGL defintions from NVMe TP 4008, required for
the final NVMe-FC standard.

Signed-off-by: James Smart <james.smart@broadcom.com>
Signed-off-by: Christoph Hellwig <hch@lst.de>
Signed-off-by: Jens Axboe <axboe@kernel.dk>

diff --git a/include/linux/nvme.h b/include/linux/nvme.h
index 2440be3..9310ce7 100644 (file)
--- a/include/linux/nvme.h
+++ b/include/linux/nvme.h
@@ -471,12 +471,14 @@ enum nvme_opcode {
  *
  * @NVME_SGL_FMT_ADDRESS:     absolute address of the data block
  * @NVME_SGL_FMT_OFFSET:      relative offset of the in-capsule data block
+ * @NVME_SGL_FMT_TRANSPORT_A: transport defined format, value 0xA
  * @NVME_SGL_FMT_INVALIDATE:  RDMA transport specific remote invalidation
  *                            request subtype
  */
 enum {
        NVME_SGL_FMT_ADDRESS            = 0x00,
        NVME_SGL_FMT_OFFSET             = 0x01,
+       NVME_SGL_FMT_TRANSPORT_A        = 0x0A,
        NVME_SGL_FMT_INVALIDATE         = 0x0f,
 };
 
@@ -490,12 +492,16 @@ enum {
  *
  * For struct nvme_keyed_sgl_desc:
  *   @NVME_KEY_SGL_FMT_DATA_DESC:      keyed data block descriptor
+ *
+ * Transport-specific SGL types:
+ *   @NVME_TRANSPORT_SGL_DATA_DESC:    Transport SGL data dlock descriptor
  */
 enum {
        NVME_SGL_FMT_DATA_DESC          = 0x00,
        NVME_SGL_FMT_SEG_DESC           = 0x02,
        NVME_SGL_FMT_LAST_SEG_DESC      = 0x03,
        NVME_KEY_SGL_FMT_DATA_DESC      = 0x04,
+       NVME_TRANSPORT_SGL_DATA_DESC    = 0x05,
 };
 
 struct nvme_sgl_desc {