Commit 9ca35dfc authored by Ben Walker's avatar Ben Walker Committed by Jim Harris
Browse files

identify: Print out information about controller memory buffer support 



Change-Id: I62c84647e3ae19b3df08c089284043ffebe9081b
Signed-off-by: default avatarBen Walker <benjamin.walker@intel.com>
Reviewed-on: https://review.gerrithub.io/c/442636


Reviewed-by: default avatarJim Harris <james.r.harris@intel.com>
Reviewed-by: default avatarShuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-by: default avatarwuzhouhui <wuzhouhui@kingsoft.com>
Tested-by: default avatarSPDK CI Jenkins <sys_sgci@intel.com>
parent 993c4a07

examples/nvme/identify/identify.c

+27 −0
Original line number Diff line number Diff line
@@ -865,6 +865,7 @@ print_controller(struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_transport 
	const struct spdk_nvme_ctrlr_data	*cdata;

	union spdk_nvme_cap_register		cap;

	union spdk_nvme_vs_register		vs;

	union spdk_nvme_cmbsz_register		cmbsz;

	uint8_t					str[512];

	uint32_t				i;

	struct spdk_nvme_error_information_entry *error_entry;
@@ -875,6 +876,7 @@ print_controller(struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_transport 


	cap = spdk_nvme_ctrlr_get_regs_cap(ctrlr);

	vs = spdk_nvme_ctrlr_get_regs_vs(ctrlr);

	cmbsz = spdk_nvme_ctrlr_get_regs_cmbsz(ctrlr);



	if (!spdk_nvme_ctrlr_is_discovery(ctrlr)) {

		/*
@@ -996,6 +998,31 @@ print_controller(struct spdk_nvme_ctrlr *ctrlr, const struct spdk_nvme_transport 
	       cdata->ctratt.host_id_exhid_supported ? "Supported" : "Not Supported");

	printf("\n");



	printf("Controller Memory Buffer Support\n");

	printf("================================\n");

	if (cmbsz.raw != 0) {

		uint64_t size = cmbsz.bits.sz;



		/* Convert the size to bytes by multiplying by the granularity.

		   By spec, szu is at most 6 and sz is 20 bits, so size requires

		   at most 56 bits. */

		size *= (0x1000 << (cmbsz.bits.szu * 4));



		printf("Supported:                             Yes\n");

		printf("Total Size:                            %lu bytes\n", size);

		printf("Submission Queues in CMB:              %s\n",

		       cmbsz.bits.sqs ? "Supported" : "Not Supported");

		printf("Completion Queues in CMB:              %s\n",

		       cmbsz.bits.cqs ? "Supported" : "Not Supported");

		printf("Read data and metadata in CMB          %s\n",

		       cmbsz.bits.rds ? "Supported" : "Not Supported");

		printf("Write data and metadata in CMB:        %s\n",

		       cmbsz.bits.wds ? "Supported" : "Not Supported");

	} else {

		printf("Supported:                             No\n");

	}

	printf("\n");



	printf("Admin Command Set Attributes\n");

	printf("============================\n");

	printf("Security Send/Receive:                 %s\n",