Commit 6308a24f authored by Changpeng Liu's avatar Changpeng Liu Committed by Jim Harris
Browse files

nvme: add a new custom transport SPDK_NVME_TRANSPORT_VFIOUSER 



The new custom transport can enable NVMe driver running with
NVMe over vfio-user target.

Change-Id: I5f90e8516eaca08fc3eab658b29b760a03326ff7
Signed-off-by: default avatarChangpeng Liu <changpeng.liu@intel.com>
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/5996


Community-CI: Broadcom CI
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 b30d57cd

CHANGELOG.md

+5 −0
Original line number Diff line number Diff line
@@ -47,8 +47,13 @@ are added for Directive Send and Directive Receive command, respectively. 


Added a new function `spdk_nvme_ctrlr_reset_subsystem` to perform a NVMe

subsystem reset. Note: The NVMf target does not support the subsystem reset yet.



Add a new function 'spdk_nvme_bytes_to_numd' to transfer bytes to number of

dwords.



Added a new custom transport `SPDK_NVME_TRANSPORT_VFIOUSER` to enable NVMe

driver running with NVMe over vfio-user target.



### event



The pci_whitelist and pci_blacklist members of struct spdk_app_opts have been

include/spdk/nvme.h

+11 −5
Original line number Diff line number Diff line
@@ -52,6 +52,7 @@ extern "C" { 
#define SPDK_NVME_TRANSPORT_NAME_PCIE		"PCIE"

#define SPDK_NVME_TRANSPORT_NAME_RDMA		"RDMA"

#define SPDK_NVME_TRANSPORT_NAME_TCP		"TCP"

#define SPDK_NVME_TRANSPORT_NAME_VFIOUSER	"VFIOUSER"

#define SPDK_NVME_TRANSPORT_NAME_CUSTOM		"CUSTOM"



#define SPDK_NVMF_PRIORITY_MAX_LEN 4
@@ -320,6 +321,11 @@ enum spdk_nvme_transport_type { 
	 */

	SPDK_NVME_TRANSPORT_TCP = SPDK_NVMF_TRTYPE_TCP,



	/**

	 * Custom VFIO User Transport (Not spec defined)

	 */

	SPDK_NVME_TRANSPORT_VFIOUSER = 1024,



	/**

	 * Custom Transport (Not spec defined)

	 */

lib/nvme/nvme.c

+7 −0
Original line number Diff line number Diff line
@@ -1030,6 +1030,9 @@ spdk_nvme_trid_populate_transport(struct spdk_nvme_transport_id *trid, 
	case SPDK_NVME_TRANSPORT_TCP:

		trstring = SPDK_NVME_TRANSPORT_NAME_TCP;

		break;

	case SPDK_NVME_TRANSPORT_VFIOUSER:

		trstring = SPDK_NVME_TRANSPORT_NAME_VFIOUSER;

		break;

	case SPDK_NVME_TRANSPORT_CUSTOM:

		trstring = SPDK_NVME_TRANSPORT_NAME_CUSTOM;

		break;
@@ -1082,6 +1085,8 @@ spdk_nvme_transport_id_parse_trtype(enum spdk_nvme_transport_type *trtype, const 
		*trtype = SPDK_NVME_TRANSPORT_FC;

	} else if (strcasecmp(str, "TCP") == 0) {

		*trtype = SPDK_NVME_TRANSPORT_TCP;

	} else if (strcasecmp(str, "VFIOUSER") == 0) {

		*trtype = SPDK_NVME_TRANSPORT_VFIOUSER;

	} else {

		*trtype = SPDK_NVME_TRANSPORT_CUSTOM;

	}
@@ -1100,6 +1105,8 @@ spdk_nvme_transport_id_trtype_str(enum spdk_nvme_transport_type trtype) 
		return "FC";

	case SPDK_NVME_TRANSPORT_TCP:

		return "TCP";

	case SPDK_NVME_TRANSPORT_VFIOUSER:

		return "VFIOUSER";

	case SPDK_NVME_TRANSPORT_CUSTOM:

		return "CUSTOM";

	default: