Adding upstream version 1.12.upstream/1.12

Signed-off-by: Daniel Baumann <daniel.baumann@progress-linux.org>

1 files changed, 167 insertions, 0 deletions

diff --git a/nvme-status.c b/nvme-status.c
new file mode 100644
index 0000000..1b060dc
--- /dev/null
+++ b/nvme-status.c
@@ -0,0 +1,167 @@
+#include <linux/types.h>
+#include <stdbool.h>
+#include <errno.h>
+
+#include "nvme.h"
+#include "nvme-status.h"
+
+static inline __u8 nvme_generic_status_to_errno(__u16 status)
+{
+	switch (status) {
+	case NVME_SC_INVALID_OPCODE:
+	case NVME_SC_INVALID_FIELD:
+	case NVME_SC_INVALID_NS:
+	case NVME_SC_SGL_INVALID_LAST:
+	case NVME_SC_SGL_INVALID_COUNT:
+	case NVME_SC_SGL_INVALID_DATA:
+	case NVME_SC_SGL_INVALID_METADATA:
+	case NVME_SC_SGL_INVALID_TYPE:
+	case NVME_SC_SGL_INVALID_OFFSET:
+	case NVME_SC_CMB_INVALID_USE:
+	case NVME_SC_PRP_INVALID_OFFSET:
+		return EINVAL;
+	case NVME_SC_CMDID_CONFLICT:
+		return EADDRINUSE;
+	case NVME_SC_DATA_XFER_ERROR:
+	case NVME_SC_INTERNAL:
+	case NVME_SC_SANITIZE_FAILED:
+		return EIO;
+	case NVME_SC_POWER_LOSS:
+	case NVME_SC_ABORT_REQ:
+	case NVME_SC_ABORT_QUEUE:
+	case NVME_SC_FUSED_FAIL:
+	case NVME_SC_FUSED_MISSING:
+		return EWOULDBLOCK;
+	case NVME_SC_CMD_SEQ_ERROR:
+		return EILSEQ;
+	case NVME_SC_SANITIZE_IN_PROGRESS:
+	case NVME_SC_FORMAT_IN_PROGRESS:
+		return EINPROGRESS;
+	case NVME_SC_NS_WRITE_PROTECTED:
+	case NVME_SC_NS_NOT_READY:
+	case NVME_SC_RESERVATION_CONFLICT:
+		return EACCES;
+	case NVME_SC_LBA_RANGE:
+		return EREMOTEIO;
+	case NVME_SC_CAP_EXCEEDED:
+		return ENOSPC;
+	case NVME_SC_OPERATION_DENIED:
+		return EPERM;
+	}
+
+	return EIO;
+}
+
+static inline __u8 nvme_cmd_specific_status_to_errno(__u16 status)
+{
+	switch (status) {
+	case NVME_SC_CQ_INVALID:
+	case NVME_SC_QID_INVALID:
+	case NVME_SC_QUEUE_SIZE:
+	case NVME_SC_FIRMWARE_SLOT:
+	case NVME_SC_FIRMWARE_IMAGE:
+	case NVME_SC_INVALID_VECTOR:
+	case NVME_SC_INVALID_LOG_PAGE:
+	case NVME_SC_INVALID_FORMAT:
+	case NVME_SC_INVALID_QUEUE:
+	case NVME_SC_NS_INSUFFICIENT_CAP:
+	case NVME_SC_NS_ID_UNAVAILABLE:
+	case NVME_SC_CTRL_LIST_INVALID:
+	case NVME_SC_BAD_ATTRIBUTES:
+	case NVME_SC_INVALID_PI:
+	case NVME_SC_INVALID_CTRL_ID:
+	case NVME_SC_INVALID_SECONDARY_CTRL_STATE:
+	case NVME_SC_INVALID_NUM_CTRL_RESOURCE:
+	case NVME_SC_INVALID_RESOURCE_ID:
+	case NVME_SC_ANA_INVALID_GROUP_ID:
+		return EINVAL;
+	case NVME_SC_ABORT_LIMIT:
+	case NVME_SC_ASYNC_LIMIT:
+		return EDQUOT;
+	case NVME_SC_FW_NEEDS_CONV_RESET:
+	case NVME_SC_FW_NEEDS_SUBSYS_RESET:
+	case NVME_SC_FW_NEEDS_MAX_TIME:
+		return ERESTART;
+	case NVME_SC_FEATURE_NOT_SAVEABLE:
+	case NVME_SC_FEATURE_NOT_CHANGEABLE:
+	case NVME_SC_FEATURE_NOT_PER_NS:
+	case NVME_SC_FW_ACTIVATE_PROHIBITED:
+	case NVME_SC_NS_IS_PRIVATE:
+	case NVME_SC_BP_WRITE_PROHIBITED:
+	case NVME_SC_READ_ONLY:
+	case NVME_SC_PMR_SAN_PROHIBITED:
+		return EPERM;
+	case NVME_SC_OVERLAPPING_RANGE:
+	case NVME_SC_NS_NOT_ATTACHED:
+		return ENOSPC;
+	case NVME_SC_NS_ALREADY_ATTACHED:
+		return EALREADY;
+	case NVME_SC_THIN_PROV_NOT_SUPP:
+	case NVME_SC_ONCS_NOT_SUPPORTED:
+		return EOPNOTSUPP;
+	case NVME_SC_DEVICE_SELF_TEST_IN_PROGRESS:
+		return EINPROGRESS;
+	}
+
+	return EIO;
+}
+
+static inline __u8 nvme_fabrics_status_to_errno(__u16 status)
+{
+	switch (status) {
+	case NVME_SC_CONNECT_FORMAT:
+	case NVME_SC_CONNECT_INVALID_PARAM:
+		return EINVAL;
+	case NVME_SC_CONNECT_CTRL_BUSY:
+		return EBUSY;
+	case NVME_SC_CONNECT_RESTART_DISC:
+		return ERESTART;
+	case NVME_SC_CONNECT_INVALID_HOST:
+		return ECONNREFUSED;
+	case NVME_SC_DISCOVERY_RESTART:
+		return EAGAIN;
+	case NVME_SC_AUTH_REQUIRED:
+		return EPERM;
+	}
+
+	return EIO;
+}
+
+/*
+ * nvme_status_to_errno - It converts given status to errno mapped
+ * @status: >= 0 for nvme status field in completion queue entry,
+ *          < 0 for linux internal errors
+ * @fabrics: true if given status is for fabrics
+ *
+ * Notes: This function will convert a given status to an errno mapped
+ */
+__u8 nvme_status_to_errno(int status, bool fabrics)
+{
+	__u8 sct;
+
+	if (!status)
+		return 0;
+
+	if (status < 0)
+		return ECOMM;
+
+	/*
+	 * The actual status code is enough with masking 0xff, but we need to
+	 * cover status code type which is 3bits with 0x7ff.
+	 */
+	status &= 0x7ff;
+
+	sct = nvme_status_type(status);
+	if (sct == NVME_SCT_GENERIC)
+		return nvme_generic_status_to_errno(status);
+	else if (sct == NVME_SCT_CMD_SPECIFIC && !fabrics)
+		return nvme_cmd_specific_status_to_errno(status);
+	else if (sct == NVME_SCT_CMD_SPECIFIC && fabrics)
+		return nvme_fabrics_status_to_errno(status);
+
+	/*
+	 * Media, integrity related status, and the others will be mapped to
+	 * EIO.
+	 */
+	return EIO;
+}