Commit a464f139 authored by Daniel Verkamp's avatar Daniel Verkamp
Browse files

nvme: add API to get CAP and VS registers 



This is intended to be used for examples/nvme/identify and similar
diagnostic utilities.

Change-Id: Ib2f941e9af7a3fb7555865ef253742e30ccad2b5
Signed-off-by: default avatarDaniel Verkamp <daniel.verkamp@intel.com>
parent a9df326a

include/spdk/nvme.h

+10 −0
Original line number Diff line number Diff line
@@ -163,6 +163,16 @@ int spdk_nvme_ctrlr_reset(struct spdk_nvme_ctrlr *ctrlr); 
 */

const struct spdk_nvme_ctrlr_data *spdk_nvme_ctrlr_get_data(struct spdk_nvme_ctrlr *ctrlr);



/**

 * \brief Get the NVMe controller CAP (Capabilities) register.

 */

union spdk_nvme_cap_register spdk_nvme_ctrlr_get_regs_cap(struct spdk_nvme_ctrlr *ctrlr);



/**

 * \brief Get the NVMe controller VS (Version) register.

 */

union spdk_nvme_vs_register spdk_nvme_ctrlr_get_regs_vs(struct spdk_nvme_ctrlr *ctrlr);



/**

 * \brief Get the number of namespaces for the given NVMe controller.

 *

lib/nvme/nvme_ctrlr.c

+16 −0
Original line number Diff line number Diff line
@@ -1175,6 +1175,22 @@ spdk_nvme_ctrlr_get_data(struct spdk_nvme_ctrlr *ctrlr) 
	return &ctrlr->cdata;

}



union spdk_nvme_cap_register spdk_nvme_ctrlr_get_regs_cap(struct spdk_nvme_ctrlr *ctrlr)

{

	union spdk_nvme_cap_register cap;



	cap.raw = nvme_mmio_read_8(ctrlr, cap.raw);

	return cap;

}



union spdk_nvme_vs_register spdk_nvme_ctrlr_get_regs_vs(struct spdk_nvme_ctrlr *ctrlr)

{

	union spdk_nvme_vs_register vs;



	vs.raw = nvme_mmio_read_4(ctrlr, vs.raw);

	return vs;

}



uint32_t

spdk_nvme_ctrlr_get_num_ns(struct spdk_nvme_ctrlr *ctrlr)

{