diff options
Diffstat (limited to 'plugins/ocp/ocp-utils.c')
| -rw-r--r-- | plugins/ocp/ocp-utils.c | 69 |
1 files changed, 67 insertions, 2 deletions
diff --git a/plugins/ocp/ocp-utils.c b/plugins/ocp/ocp-utils.c index 9294c05..a37a58c 100644 --- a/plugins/ocp/ocp-utils.c +++ b/plugins/ocp/ocp-utils.c @@ -5,11 +5,13 @@ * Author: leonardo.da.cunha@solidigm.com */ +#include <unistd.h> #include "ocp-utils.h" +#include "nvme-print.h" const unsigned char ocp_uuid[NVME_UUID_LEN] = { - 0x6f, 0xbe, 0x56, 0x8f, 0x99, 0x29, 0x1d, 0xa2, 0x94, 0x47, - 0x94, 0xe0, 0x5b, 0xd5, 0x94, 0xc1 }; + 0xc1, 0x94, 0xd5, 0x5b, 0xe0, 0x94, 0x47, 0x94, 0xa2, 0x1d, + 0x29, 0x99, 0x8f, 0x56, 0xbe, 0x6f }; int ocp_get_uuid_index(struct nvme_dev *dev, int *index) { @@ -28,3 +30,66 @@ int ocp_get_uuid_index(struct nvme_dev *dev, int *index) } return err; } + +int ocp_clear_feature(int argc, char **argv, const char *desc, const __u8 fid) +{ + __u32 result = 0; + __u32 clear = 1 << 31; + struct nvme_dev *dev; + int uuid_index = 0; + bool uuid = true; + int err; + + OPT_ARGS(opts) = { + OPT_FLAG("no-uuid", 'n', NULL, + "Skip UUID index search (UUID index not required for OCP 1.0)"), + OPT_END() + }; + + err = parse_and_open(&dev, argc, argv, desc, opts); + if (err) + return err; + + if (opts[0].seen) + uuid = false; + + if (uuid) { + /* OCP 2.0 requires UUID index support */ + err = ocp_get_uuid_index(dev, &uuid_index); + if (err || !uuid_index) { + fprintf(stderr, "ERROR: No OCP UUID index found\n"); + goto close_dev; + } + } + + struct nvme_set_features_args args = { + .result = &result, + .data = NULL, + .args_size = sizeof(args), + .fd = dev_fd(dev), + .timeout = NVME_DEFAULT_IOCTL_TIMEOUT, + .nsid = 0, + .cdw11 = clear, + .cdw12 = 0, + .cdw13 = 0, + .cdw15 = 0, + .data_len = 0, + .save = 0, + .uuidx = uuid_index, + .fid = fid, + }; + + err = nvme_set_features(&args); + + if (err == 0) + printf("Success : %s\n", desc); + else if (err > 0) + nvme_show_status(err); + else + printf("Fail : %s\n", desc); +close_dev: + /* Redundant close() to make static code analysis happy */ + close(dev->direct.fd); + dev_close(dev); + return err; +} |