Author: manu
Date: Fri Jul 24 17:11:14 2020
New Revision: 363479
URL: https://svnweb.freebsd.org/changeset/base/363479
Log:
mmccam: Add some aliases for non-mmccam to mmccam transition
A new tunable is present, kern.cam.sdda.mmcsd_compat to enable
this feature or not (default is enabled)
Modified:
head/sys/cam/mmc/mmc_da.c
Modified: head/sys/cam/mmc/mmc_da.c
==============================================================================
--- head/sys/cam/mmc/mmc_da.c Fri Jul 24 16:58:13 2020 (r363478)
+++ head/sys/cam/mmc/mmc_da.c Fri Jul 24 17:11:14 2020 (r363479)
@@ -43,6 +43,7 @@ __FBSDID("$FreeBSD$");
#include <sys/systm.h>
#include <sys/kernel.h>
#include <sys/bio.h>
+#include <sys/sysctl.h>
#include <sys/endian.h>
#include <sys/taskqueue.h>
#include <sys/lock.h>
@@ -186,6 +187,13 @@ static void sdda_init_switch_part(struct cam_periph *p
static int mmc_select_card(struct cam_periph *periph, union ccb *ccb, uint32_t
rca);
static inline uint32_t mmc_get_sector_size(struct cam_periph *periph) {return
MMC_SECTOR_SIZE;}
+static SYSCTL_NODE(_kern_cam, OID_AUTO, sdda, CTLFLAG_RD | CTLFLAG_MPSAFE, 0,
+ "CAM Direct Access Disk driver");
+
+static int sdda_mmcsd_compat = 1;
+SYSCTL_INT(_kern_cam_sdda, OID_AUTO, mmcsd_compat, CTLFLAG_RDTUN,
+ &sdda_mmcsd_compat, 1, "Enable creation of mmcsd aliases.");
+
/* TODO: actually issue GET_TRAN_SETTINGS to get R/O status */
static inline bool sdda_get_read_only(struct cam_periph *periph, union ccb
*start_ccb)
{
@@ -1604,6 +1612,9 @@ sdda_add_part(struct cam_periph *periph, u_int type, c
part->disk->d_stripesize = 0;
part->disk->d_fwsectors = 0;
part->disk->d_fwheads = 0;
+
+ if (sdda_mmcsd_compat)
+ disk_add_alias(part->disk, "mmcsd");
/*
* Acquire a reference to the periph before we register with GEOM.
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