Commit a5836c6d authored by Changpeng Liu's avatar Changpeng Liu
Browse files

nvme/opal: introduce a session concept disaggregate data buffers 



Althrough the controller can only support 1 session, but we can refactor
the OPAL internal APIs running based on session, then we can allocate
a session from public APIs, currently we just use the session that
embedded in the global device structure.

No actual logic change from this patch.

Change-Id: Ifbc801970f3df6f0753a5796715667f2eaf664aa
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/1520


Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
parent 35aab73c

lib/nvme/nvme_opal.c

+345 −335

File changed.

Preview size limit exceeded, changes collapsed.

lib/nvme/nvme_opal_internal.h

+11 −7
Original line number Diff line number Diff line
@@ -268,19 +268,23 @@ struct spdk_opal_header { 
	struct spdk_opal_data_subpacket sub_packet;

};



struct spdk_opal_dev {

	bool supported;

	struct spdk_nvme_ctrlr *ctrlr;



	uint16_t comid;

struct opal_session {

	uint32_t hsn;

	uint32_t tsn;



	size_t cmd_pos;

	uint8_t cmd[IO_BUFFER_LENGTH];

	uint8_t resp[IO_BUFFER_LENGTH];



	struct spdk_opal_resp_parsed parsed_resp;

};



struct spdk_opal_dev {

	bool supported;

	struct spdk_nvme_ctrlr *ctrlr;



	uint16_t comid;



	/* Only one session can be supported */

	struct opal_session sess;



	struct spdk_opal_d0_features_info feat_info;