From 183ac8884d28d4bd5503a345b4c4888bfb930f6c Mon Sep 17 00:00:00 2001
From: Konrad Sztyber <konrad.sztyber@intel.com>
Date: Mon, 22 Feb 2021 16:29:46 +0100
Subject: [PATCH] external_code/identify: print controller identify data

The application will now print some of the fields from the identify
controller data.

The code has been copied from `examples/nvme/identify`, but, for the
sake of simplicity, trimmed down to printing reduced number of fields.

Signed-off-by: Konrad Sztyber <konrad.sztyber@intel.com>
Change-Id: I838c47deffb0b877344f3cad0e88b6aca19790ea
Reviewed-on: https://review.spdk.io/gerrit/c/spdk/spdk/+/6678
Reviewed-by: Tomasz Zawadzki <tomasz.zawadzki@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
Community-CI: Mellanox Build Bot
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
---
 test/external_code/nvme/identify.c | 67 ++++++++++++++++++++++++++++--
 1 file changed, 63 insertions(+), 4 deletions(-)

diff --git a/test/external_code/nvme/identify.c b/test/external_code/nvme/identify.c
index 679b6a305..640ad17df 100644
--- a/test/external_code/nvme/identify.c
+++ b/test/external_code/nvme/identify.c
@@ -35,12 +35,71 @@
 #include "nvme.h"
 
 static void
-print_controller(const struct spdk_pci_addr *addr)
+print_ascii_string(const void *buf, size_t size)
 {
+	const uint8_t *str = buf;
+
+	/* Trim trailing spaces */
+	while (size > 0 && str[size - 1] == ' ') {
+		size--;
+	}
+
+	while (size--) {
+		if (*str >= 0x20 && *str <= 0x7E) {
+			printf("%c", *str);
+		} else {
+			printf(".");
+		}
+		str++;
+	}
+}
+
+static void
+print_controller(struct nvme_ctrlr *ctrlr, const struct spdk_pci_addr *addr)
+{
+	const struct spdk_nvme_ctrlr_data *cdata;
 	char fmtaddr[32] = {};
 
+	cdata = nvme_ctrlr_get_data(ctrlr);
 	spdk_pci_addr_fmt(fmtaddr, sizeof(fmtaddr), addr);
-	printf("Found NVMe controller at: %s\n", fmtaddr);
+
+	printf("=====================================================\n");
+	printf("NVMe Controller at %s\n", fmtaddr);
+	printf("=====================================================\n");
+	printf("Vendor ID:                             %04x\n", cdata->vid);
+	printf("Subsystem Vendor ID:                   %04x\n", cdata->ssvid);
+	printf("Serial Number:                         ");
+	print_ascii_string(cdata->sn, sizeof(cdata->sn));
+	printf("\n");
+	printf("Model Number:                          ");
+	print_ascii_string(cdata->mn, sizeof(cdata->mn));
+	printf("\n");
+	printf("Firmware Version:                      ");
+	print_ascii_string(cdata->fr, sizeof(cdata->fr));
+	printf("\n");
+	printf("Recommended Arb Burst:                 %d\n", cdata->rab);
+	printf("IEEE OUI Identifier:                   %02x %02x %02x\n",
+	       cdata->ieee[0], cdata->ieee[1], cdata->ieee[2]);
+	printf("Multi-path I/O\n");
+	printf("  May have multiple subsystem ports:   %s\n", cdata->cmic.multi_port ? "Yes" : "No");
+	printf("  May be connected to multiple hosts:  %s\n", cdata->cmic.multi_host ? "Yes" : "No");
+	printf("  Associated with SR-IOV VF:           %s\n", cdata->cmic.sr_iov ? "Yes" : "No");
+	printf("Max Number of Namespaces:              %d\n", cdata->nn);
+	if (cdata->ver.raw != 0) {
+		printf("NVMe Specification Version (Identify): %u.%u",
+		       cdata->ver.bits.mjr, cdata->ver.bits.mnr);
+		if (cdata->ver.bits.ter) {
+			printf(".%u", cdata->ver.bits.ter);
+		}
+		printf("\n");
+	}
+	printf("Optional Asynchronous Events Supported\n");
+	printf("  Namespace Attribute Notices:         %s\n",
+	       cdata->oaes.ns_attribute_notices ? "Supported" : "Not Supported");
+	printf("  Firmware Activation Notices:         %s\n",
+	       cdata->oaes.fw_activation_notices ? "Supported" : "Not Supported");
+	printf("128-bit Host Identifier:               %s\n",
+	       cdata->ctratt.host_id_exhid_supported ? "Supported" : "Not Supported");
 }
 
 static void
@@ -49,7 +108,7 @@ attach_cb(void *cb_ctx, const struct spdk_pci_addr *addr,
 {
 	(void)cb_ctx;
 
-	print_controller(addr);
+	print_controller(ctrlr, addr);
 	nvme_detach(ctrlr);
 }
 
@@ -83,7 +142,7 @@ main(int argc, const char **argv)
 			return 1;
 		}
 
-		print_controller(&addr);
+		print_controller(ctrlr, &addr);
 		nvme_detach(ctrlr);
 	} else if (argc == 1) {
 		rc = nvme_probe(attach_cb, NULL);