Author: imp
Date: Mon Apr 27 23:43:17 2020
New Revision: 360413
URL: https://svnweb.freebsd.org/changeset/base/360413
Log:
Export the nda device's flags as a sysctl.
Modified:
head/sys/cam/nvme/nvme_da.c
Modified: head/sys/cam/nvme/nvme_da.c
==============================================================================
--- head/sys/cam/nvme/nvme_da.c Mon Apr 27 23:43:12 2020 (r360412)
+++ head/sys/cam/nvme/nvme_da.c Mon Apr 27 23:43:17 2020 (r360413)
@@ -48,6 +48,7 @@ __FBSDID("$FreeBSD$");
#include <sys/cons.h>
#include <sys/proc.h>
#include <sys/reboot.h>
+#include <sys/sbuf.h>
#include <geom/geom.h>
#include <geom/geom_disk.h>
#endif /* _KERNEL */
@@ -75,6 +76,11 @@ typedef enum {
NDA_FLAG_DIRTY = 0x0002,
NDA_FLAG_SCTX_INIT = 0x0004,
} nda_flags;
+#define NDA_FLAG_STRING \
+ "\020" \
+ "\001OPEN" \
+ "\002DIRTY" \
+ "\003SCTX_INIT"
typedef enum {
NDA_Q_4K = 0x01,
@@ -144,6 +150,7 @@ static periph_init_t ndainit;
static void ndaasync(void *callback_arg, u_int32_t code,
struct cam_path *path, void *arg);
static void ndasysctlinit(void *context, int pending);
+static int ndaflagssysctl(SYSCTL_HANDLER_ARGS);
static periph_ctor_t ndaregister;
static periph_dtor_t ndacleanup;
static periph_start_t ndastart;
@@ -659,6 +666,11 @@ ndasysctlinit(void *context, int pending)
OID_AUTO, "rotating", CTLFLAG_RD, &nda_rotating_media, 1,
"Rotating media");
+ SYSCTL_ADD_PROC(&softc->sysctl_ctx, SYSCTL_CHILDREN(softc->sysctl_tree),
+ OID_AUTO, "flags", CTLTYPE_STRING | CTLFLAG_RD | CTLFLAG_MPSAFE,
+ softc, 0, ndaflagssysctl, "A",
+ "Flags for drive");
+
#ifdef CAM_IO_STATS
softc->sysctl_stats_tree = SYSCTL_ADD_NODE(&softc->sysctl_stats_ctx,
SYSCTL_CHILDREN(softc->sysctl_tree), OID_AUTO, "stats",
@@ -696,6 +708,24 @@ ndasysctlinit(void *context, int pending)
softc->sysctl_tree);
cam_periph_release(periph);
+}
+
+static int
+ndaflagssysctl(SYSCTL_HANDLER_ARGS)
+{
+ struct sbuf sbuf;
+ struct nda_softc *softc = arg1;
+ int error;
+
+ sbuf_new_for_sysctl(&sbuf, NULL, 0, req);
+ if (softc->flags != 0)
+ sbuf_printf(&sbuf, "0x%b", (unsigned)softc->flags,
NDA_FLAG_STRING);
+ else
+ sbuf_printf(&sbuf, "0");
+ error = sbuf_finish(&sbuf);
+ sbuf_delete(&sbuf);
+
+ return (error);
}
static int
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