nvme/rdma: use common Get Log page function for discovery

static int

nvme_fabrics_get_log_discovery_page(struct spdk_nvme_ctrlr *ctrlr,

				    char *log_page, uint32_t size)

				    void *log_page, uint32_t size)

{

	struct spdk_nvme_cmd cmd = {};

	struct nvme_completion_poll_status status = {};

	struct nvme_completion_poll_status status;

	int rc;

	uint32_t zero_based_value = ((size / sizeof(uint32_t)) - 1);

	uint16_t numdl = zero_based_value & 0xFFFF;

	uint16_t numdu = (zero_based_value >> 16) & 0xFFFF;

	cmd.opc = SPDK_NVME_OPC_GET_LOG_PAGE;

	cmd.cdw10 = SPDK_NVME_LOG_DISCOVERY;

	cmd.cdw10 |= (numdl << 16);

	cmd.cdw11 = numdu;

	rc = spdk_nvme_ctrlr_cmd_admin_raw(ctrlr, (struct spdk_nvme_cmd *)&cmd,

					   (void *)log_page, 4096,

					   nvme_completion_poll_cb, &status);

	status.done = false;

	rc = spdk_nvme_ctrlr_cmd_get_log_page(ctrlr, SPDK_NVME_LOG_DISCOVERY, 0, log_page, size,

					      nvme_completion_poll_cb, &status);

	if (rc < 0) {

		return -1;

	}