From 645ce1a70cb6bedc85a11edb547db091375dea55 Mon Sep 17 00:00:00 2001 From: Minwoo Im Date: Sat, 6 Feb 2021 12:18:09 +0900 Subject: hw/block/nvme: support namespace attachment command This patch supports Namespace Attachment command for the pre-defined nvme-ns device nodes. Of course, attach/detach namespace should only be supported in case 'subsys' is given. This is because if we detach a namespace from a controller, somebody needs to manage the detached, but allocated namespace in the NVMe subsystem. As command effect for the namespace attachment command is registered, the host will be notified that namespace inventory is changed so that host will rescan the namespace inventory after this command. For example, kernel driver manages this command effect via passthru IOCTL. Signed-off-by: Minwoo Im Reviewed-by: Keith Busch Reviewed-by: Klaus Jensen Tested-by: Klaus Jensen [k.jensen: rebased for dma refactor] Signed-off-by: Klaus Jensen --- include/block/nvme.h | 6 ++++++ 1 file changed, 6 insertions(+) (limited to 'include') diff --git a/include/block/nvme.h b/include/block/nvme.h index 16d8c4c90f..03471a4d5a 100644 --- a/include/block/nvme.h +++ b/include/block/nvme.h @@ -566,6 +566,7 @@ enum NvmeAdminCommands { NVME_ADM_CMD_ASYNC_EV_REQ = 0x0c, NVME_ADM_CMD_ACTIVATE_FW = 0x10, NVME_ADM_CMD_DOWNLOAD_FW = 0x11, + NVME_ADM_CMD_NS_ATTACHMENT = 0x15, NVME_ADM_CMD_FORMAT_NVM = 0x80, NVME_ADM_CMD_SECURITY_SEND = 0x81, NVME_ADM_CMD_SECURITY_RECV = 0x82, @@ -836,6 +837,9 @@ enum NvmeStatusCodes { NVME_FEAT_NOT_CHANGEABLE = 0x010e, NVME_FEAT_NOT_NS_SPEC = 0x010f, NVME_FW_REQ_SUSYSTEM_RESET = 0x0110, + NVME_NS_ALREADY_ATTACHED = 0x0118, + NVME_NS_NOT_ATTACHED = 0x011A, + NVME_NS_CTRL_LIST_INVALID = 0x011C, NVME_CONFLICTING_ATTRS = 0x0180, NVME_INVALID_PROT_INFO = 0x0181, NVME_WRITE_TO_RO = 0x0182, @@ -951,6 +955,7 @@ typedef struct QEMU_PACKED NvmePSD { uint8_t resv[16]; } NvmePSD; +#define NVME_CONTROLLER_LIST_SIZE 2048 #define NVME_IDENTIFY_DATA_SIZE 4096 enum NvmeIdCns { @@ -1055,6 +1060,7 @@ enum NvmeIdCtrlOacs { NVME_OACS_SECURITY = 1 << 0, NVME_OACS_FORMAT = 1 << 1, NVME_OACS_FW = 1 << 2, + NVME_OACS_NS_MGMT = 1 << 3, }; enum NvmeIdCtrlOncs { -- cgit v1.2.3-55-g7522