From ef8047033825453bf41e23cc0b6526e5b2750a1f Mon Sep 17 00:00:00 2001
From: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Date: Fri, 21 Sep 2018 10:57:22 +0900
Subject: [PATCH] bdev/raid: Add .INI config dump

Add dump the current configuration of raid bdevs to the specified
file for .INI config file.

.INI config file will be deprecated but this addition will be helpful
for now.

Change-Id: I35582ceaff18d81b066e3e63e0c8c22525ec6b9e
Signed-off-by: Shuhei Matsumoto <shuhei.matsumoto.xt@hitachi.com>
Reviewed-on: https://review.gerrithub.io/426299
Chandler-Test-Pool: SPDK Automated Test System <sys_sgsw@intel.com>
Tested-by: SPDK CI Jenkins <sys_sgci@intel.com>
Reviewed-by: Hailiang Wang <hailiangx.e.wang@intel.com>
Reviewed-by: Pawel Wodkowski <pawelx.wodkowski@intel.com>
Reviewed-by: Paul Luse <paul.e.luse@intel.com>
Reviewed-by: Ben Walker <benjamin.walker@intel.com>
Reviewed-by: Jim Harris <james.r.harris@intel.com>
---
 lib/bdev/raid/bdev_raid.c | 45 ++++++++++++++++++++++++++++++++++++++-
 1 file changed, 44 insertions(+), 1 deletion(-)

diff --git a/lib/bdev/raid/bdev_raid.c b/lib/bdev/raid/bdev_raid.c
index ce7a97db9..e29b0ae60 100644
--- a/lib/bdev/raid/bdev_raid.c
+++ b/lib/bdev/raid/bdev_raid.c
@@ -1097,6 +1097,49 @@ raid_bdev_get_ctx_size(void)
 	return sizeof(struct raid_bdev_io);
 }
 
+/*
+ * brief:
+ * raid_bdev_get_running_config is used to get the configuration options.
+ *
+ * params:
+ * fp - The pointer to a file that will be written to the configuration options.
+ * returns:
+ * none
+ */
+static void
+raid_bdev_get_running_config(FILE *fp)
+{
+	struct raid_bdev *raid_bdev;
+	struct spdk_bdev *base;
+	int index = 1;
+	uint16_t i;
+
+	TAILQ_FOREACH(raid_bdev, &g_spdk_raid_bdev_configured_list, state_link) {
+		fprintf(fp,
+			"\n"
+			"[RAID%d]\n"
+			"  Name %s\n"
+			"  StripSize %" PRIu32 "\n"
+			"  NumDevices %hu\n"
+			"  RaidLevel %hhu\n",
+			index, raid_bdev->bdev.name, raid_bdev->strip_size,
+			raid_bdev->num_base_bdevs, raid_bdev->raid_level);
+		fprintf(fp,
+			"  Devices ");
+		for (i = 0; i < raid_bdev->num_base_bdevs; i++) {
+			base = raid_bdev->base_bdev_info[i].bdev;
+			if (base) {
+				fprintf(fp,
+					"%s ",
+					base->name);
+			}
+		}
+		fprintf(fp,
+			"\n");
+		index++;
+	}
+}
+
 /*
  * brief:
  * raid_bdev_can_claim_bdev is the function to check if this base_bdev can be
@@ -1143,7 +1186,7 @@ static struct spdk_bdev_module g_raid_if = {
 	.module_fini = raid_bdev_exit,
 	.get_ctx_size = raid_bdev_get_ctx_size,
 	.examine_config = raid_bdev_examine,
-	.config_text = NULL,
+	.config_text = raid_bdev_get_running_config,
 	.async_init = false,
 	.async_fini = false,
 };