mirror of https://gitee.com/openkylin/linux.git
xen-scsiback: define a pr_fmt macro with xen-pvscsi
Add the {xen-pvscsi: } prefix in pr_fmt and remove DPRINTK, then
replace all DPRINTK with pr_debug.
Also fixed up some comments just as eliminate redundant whitespace
and format the code.
These will make the code easier to read.
Signed-off-by: Tao Chen <boby.chen@huawei.com>
Reviewed-by: Juergen Gross <jgross@suse.com>
Signed-off-by: David Vrabel <david.vrabel@citrix.com>
This commit is contained in:
Tao Chen
David Vrabel
parent
ebfe79a7c8
commit
785748788b
|
|
@ -31,6 +31,8 @@
|
|||
* IN THE SOFTWARE.
|
||||
*/
|
||||
|
||||
#define pr_fmt(fmt) "xen-pvscsi: " fmt
|
||||
|
||||
#include <stdarg.h>
|
||||
|
||||
#include <linux/module.h>
|
||||
|
|
@ -69,9 +71,6 @@
|
|||
#include <xen/interface/grant_table.h>
|
||||
#include <xen/interface/io/vscsiif.h>
|
||||
|
||||
#define DPRINTK(_f, _a...) \
|
||||
pr_debug("(file=%s, line=%d) " _f, __FILE__ , __LINE__ , ## _a)
|
||||
|
||||
#define VSCSI_VERSION "v0.1"
|
||||
#define VSCSI_NAMELEN 32
|
||||
|
||||
|
|
@ -271,7 +270,7 @@ static void scsiback_print_status(char *sense_buffer, int errors,
|
|||
{
|
||||
struct scsiback_tpg *tpg = pending_req->v2p->tpg;
|
||||
|
||||
pr_err("xen-pvscsi[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
|
||||
pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
|
||||
tpg->tport->tport_name, pending_req->v2p->lun,
|
||||
pending_req->cmnd[0], status_byte(errors), msg_byte(errors),
|
||||
host_byte(errors), driver_byte(errors));
|
||||
|
|
@ -427,7 +426,7 @@ static int scsiback_gnttab_data_map_batch(struct gnttab_map_grant_ref *map,
|
|||
BUG_ON(err);
|
||||
for (i = 0; i < cnt; i++) {
|
||||
if (unlikely(map[i].status != GNTST_okay)) {
|
||||
pr_err("xen-pvscsi: invalid buffer -- could not remap it\n");
|
||||
pr_err("invalid buffer -- could not remap it\n");
|
||||
map[i].handle = SCSIBACK_INVALID_HANDLE;
|
||||
err = -ENOMEM;
|
||||
} else {
|
||||
|
|
@ -449,7 +448,7 @@ static int scsiback_gnttab_data_map_list(struct vscsibk_pend *pending_req,
|
|||
for (i = 0; i < cnt; i++) {
|
||||
if (get_free_page(pg + mapcount)) {
|
||||
put_free_pages(pg, mapcount);
|
||||
pr_err("xen-pvscsi: no grant page\n");
|
||||
pr_err("no grant page\n");
|
||||
return -ENOMEM;
|
||||
}
|
||||
gnttab_set_map_op(&map[mapcount], vaddr_page(pg[mapcount]),
|
||||
|
|
@ -492,7 +491,7 @@ static int scsiback_gnttab_data_map(struct vscsiif_request *ring_req,
|
|||
return 0;
|
||||
|
||||
if (nr_segments > VSCSIIF_SG_TABLESIZE) {
|
||||
DPRINTK("xen-pvscsi: invalid parameter nr_seg = %d\n",
|
||||
pr_debug("invalid parameter nr_seg = %d\n",
|
||||
ring_req->nr_segments);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
|
@ -516,13 +515,12 @@ static int scsiback_gnttab_data_map(struct vscsiif_request *ring_req,
|
|||
nr_segments += n_segs;
|
||||
}
|
||||
if (nr_segments > SG_ALL) {
|
||||
DPRINTK("xen-pvscsi: invalid nr_seg = %d\n",
|
||||
nr_segments);
|
||||
pr_debug("invalid nr_seg = %d\n", nr_segments);
|
||||
return -EINVAL;
|
||||
}
|
||||
}
|
||||
|
||||
/* free of (sgl) in fast_flush_area()*/
|
||||
/* free of (sgl) in fast_flush_area() */
|
||||
pending_req->sgl = kmalloc_array(nr_segments,
|
||||
sizeof(struct scatterlist), GFP_KERNEL);
|
||||
if (!pending_req->sgl)
|
||||
|
|
@ -679,7 +677,8 @@ static int prepare_pending_reqs(struct vscsibk_info *info,
|
|||
v2p = scsiback_do_translation(info, &vir);
|
||||
if (!v2p) {
|
||||
pending_req->v2p = NULL;
|
||||
DPRINTK("xen-pvscsi: doesn't exist.\n");
|
||||
pr_debug("the v2p of (chn:%d, tgt:%d, lun:%d) doesn't exist.\n",
|
||||
vir.chn, vir.tgt, vir.lun);
|
||||
return -ENODEV;
|
||||
}
|
||||
pending_req->v2p = v2p;
|
||||
|
|
@ -690,14 +689,14 @@ static int prepare_pending_reqs(struct vscsibk_info *info,
|
|||
(pending_req->sc_data_direction != DMA_TO_DEVICE) &&
|
||||
(pending_req->sc_data_direction != DMA_FROM_DEVICE) &&
|
||||
(pending_req->sc_data_direction != DMA_NONE)) {
|
||||
DPRINTK("xen-pvscsi: invalid parameter data_dir = %d\n",
|
||||
pr_debug("invalid parameter data_dir = %d\n",
|
||||
pending_req->sc_data_direction);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
pending_req->cmd_len = ring_req->cmd_len;
|
||||
if (pending_req->cmd_len > VSCSIIF_MAX_COMMAND_SIZE) {
|
||||
DPRINTK("xen-pvscsi: invalid parameter cmd_len = %d\n",
|
||||
pr_debug("invalid parameter cmd_len = %d\n",
|
||||
pending_req->cmd_len);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
|
@ -721,7 +720,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
|
|||
|
||||
if (RING_REQUEST_PROD_OVERFLOW(ring, rp)) {
|
||||
rc = ring->rsp_prod_pvt;
|
||||
pr_warn("xen-pvscsi: Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
|
||||
pr_warn("Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
|
||||
info->domid, rp, rc, rp - rc);
|
||||
info->ring_error = 1;
|
||||
return 0;
|
||||
|
|
@ -772,7 +771,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
|
|||
scsiback_device_action(pending_req, TMR_LUN_RESET, 0);
|
||||
break;
|
||||
default:
|
||||
pr_err_ratelimited("xen-pvscsi: invalid request\n");
|
||||
pr_err_ratelimited("invalid request\n");
|
||||
scsiback_do_resp_with_sense(NULL, DRIVER_ERROR << 24,
|
||||
0, pending_req);
|
||||
kmem_cache_free(scsiback_cachep, pending_req);
|
||||
|
|
@ -874,14 +873,13 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
|
|||
|
||||
lunp = strrchr(phy, ':');
|
||||
if (!lunp) {
|
||||
pr_err("xen-pvscsi: illegal format of physical device %s\n",
|
||||
phy);
|
||||
pr_err("illegal format of physical device %s\n", phy);
|
||||
return -EINVAL;
|
||||
}
|
||||
*lunp = 0;
|
||||
lunp++;
|
||||
if (kstrtouint(lunp, 10, &lun) || lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
|
||||
pr_err("xen-pvscsi: lun number not valid: %s\n", lunp);
|
||||
pr_err("lun number not valid: %s\n", lunp);
|
||||
return -EINVAL;
|
||||
}
|
||||
|
||||
|
|
@ -909,7 +907,7 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
|
|||
mutex_unlock(&scsiback_mutex);
|
||||
|
||||
if (!tpg) {
|
||||
pr_err("xen-pvscsi: %s:%d %s\n", phy, lun, error);
|
||||
pr_err("%s:%d %s\n", phy, lun, error);
|
||||
return -ENODEV;
|
||||
}
|
||||
|
||||
|
|
@ -926,7 +924,7 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
|
|||
if ((entry->v.chn == v->chn) &&
|
||||
(entry->v.tgt == v->tgt) &&
|
||||
(entry->v.lun == v->lun)) {
|
||||
pr_warn("xen-pvscsi: Virtual ID is already used. Assignment was not performed.\n");
|
||||
pr_warn("Virtual ID is already used. Assignment was not performed.\n");
|
||||
err = -EEXIST;
|
||||
goto out;
|
||||
}
|
||||
|
|
@ -997,7 +995,7 @@ static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state,
|
|||
if (!scsiback_add_translation_entry(info, phy, vir)) {
|
||||
if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
|
||||
"%d", XenbusStateInitialised)) {
|
||||
pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
|
||||
pr_err("xenbus_printf error %s\n", state);
|
||||
scsiback_del_translation_entry(info, vir);
|
||||
}
|
||||
} else {
|
||||
|
|
@ -1012,7 +1010,7 @@ static void scsiback_do_del_lun(struct vscsibk_info *info, const char *state,
|
|||
if (!scsiback_del_translation_entry(info, vir)) {
|
||||
if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
|
||||
"%d", XenbusStateClosed))
|
||||
pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
|
||||
pr_err("xenbus_printf error %s\n", state);
|
||||
}
|
||||
}
|
||||
|
||||
|
|
@ -1071,15 +1069,14 @@ static void scsiback_do_1lun_hotplug(struct vscsibk_info *info, int op,
|
|||
/* modify vscsi-devs/dev-x/state */
|
||||
if (xenbus_printf(XBT_NIL, dev->nodename, state,
|
||||
"%d", XenbusStateConnected)) {
|
||||
pr_err("xen-pvscsi: xenbus_printf error %s\n",
|
||||
str);
|
||||
pr_err("xenbus_printf error %s\n", str);
|
||||
scsiback_del_translation_entry(info, &vir);
|
||||
xenbus_printf(XBT_NIL, dev->nodename, state,
|
||||
"%d", XenbusStateClosed);
|
||||
}
|
||||
}
|
||||
break;
|
||||
/*When it is necessary, processing is added here.*/
|
||||
/* When it is necessary, processing is added here. */
|
||||
default:
|
||||
break;
|
||||
}
|
||||
|
|
@ -1196,7 +1193,7 @@ static int scsiback_probe(struct xenbus_device *dev,
|
|||
struct vscsibk_info *info = kzalloc(sizeof(struct vscsibk_info),
|
||||
GFP_KERNEL);
|
||||
|
||||
DPRINTK("%p %d\n", dev, dev->otherend_id);
|
||||
pr_debug("%s %p %d\n", __func__, dev, dev->otherend_id);
|
||||
|
||||
if (!info) {
|
||||
xenbus_dev_fatal(dev, -ENOMEM, "allocating backend structure");
|
||||
|
|
@ -1227,7 +1224,7 @@ static int scsiback_probe(struct xenbus_device *dev,
|
|||
return 0;
|
||||
|
||||
fail:
|
||||
pr_warn("xen-pvscsi: %s failed\n", __func__);
|
||||
pr_warn("%s failed\n", __func__);
|
||||
scsiback_remove(dev);
|
||||
|
||||
return err;
|
||||
|
|
@ -1432,7 +1429,7 @@ scsiback_make_tport(struct target_fabric_configfs *tf,
|
|||
}
|
||||
snprintf(&tport->tport_name[0], VSCSI_NAMELEN, "%s", &name[off]);
|
||||
|
||||
pr_debug("xen-pvscsi: Allocated emulated Target %s Address: %s\n",
|
||||
pr_debug("Allocated emulated Target %s Address: %s\n",
|
||||
scsiback_dump_proto_id(tport), name);
|
||||
|
||||
return &tport->tport_wwn;
|
||||
|
|
@ -1443,7 +1440,7 @@ static void scsiback_drop_tport(struct se_wwn *wwn)
|
|||
struct scsiback_tport *tport = container_of(wwn,
|
||||
struct scsiback_tport, tport_wwn);
|
||||
|
||||
pr_debug("xen-pvscsi: Deallocating emulated Target %s Address: %s\n",
|
||||
pr_debug("Deallocating emulated Target %s Address: %s\n",
|
||||
scsiback_dump_proto_id(tport), tport->tport_name);
|
||||
|
||||
kfree(tport);
|
||||
|
|
@ -1470,8 +1467,8 @@ static u32 scsiback_tpg_get_inst_index(struct se_portal_group *se_tpg)
|
|||
static int scsiback_check_stop_free(struct se_cmd *se_cmd)
|
||||
{
|
||||
/*
|
||||
* Do not release struct se_cmd's containing a valid TMR
|
||||
* pointer. These will be released directly in scsiback_device_action()
|
||||
* Do not release struct se_cmd's containing a valid TMR pointer.
|
||||
* These will be released directly in scsiback_device_action()
|
||||
* with transport_generic_free_cmd().
|
||||
*/
|
||||
if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
|
||||
|
|
@ -1637,7 +1634,7 @@ static int scsiback_make_nexus(struct scsiback_tpg *tpg,
|
|||
return -ENOMEM;
|
||||
}
|
||||
/*
|
||||
* Initialize the struct se_session pointer
|
||||
* Initialize the struct se_session pointer
|
||||
*/
|
||||
tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL);
|
||||
if (IS_ERR(tv_nexus->tvn_se_sess)) {
|
||||
|
|
@ -1708,7 +1705,7 @@ static int scsiback_drop_nexus(struct scsiback_tpg *tpg)
|
|||
return -EBUSY;
|
||||
}
|
||||
|
||||
pr_debug("xen-pvscsi: Removing I_T Nexus to emulated %s Initiator Port: %s\n",
|
||||
pr_debug("Removing I_T Nexus to emulated %s Initiator Port: %s\n",
|
||||
scsiback_dump_proto_id(tpg->tport),
|
||||
tv_nexus->tvn_se_sess->se_node_acl->initiatorname);
|
||||
|
||||
|
|
@ -1754,7 +1751,7 @@ static ssize_t scsiback_tpg_store_nexus(struct se_portal_group *se_tpg,
|
|||
unsigned char i_port[VSCSI_NAMELEN], *ptr, *port_ptr;
|
||||
int ret;
|
||||
/*
|
||||
* Shutdown the active I_T nexus if 'NULL' is passed..
|
||||
* Shutdown the active I_T nexus if 'NULL' is passed.
|
||||
*/
|
||||
if (!strncmp(page, "NULL", 4)) {
|
||||
ret = scsiback_drop_nexus(tpg);
|
||||
|
|
@ -1925,7 +1922,7 @@ static void scsiback_drop_tpg(struct se_portal_group *se_tpg)
|
|||
*/
|
||||
scsiback_drop_nexus(tpg);
|
||||
/*
|
||||
* Deregister the se_tpg from TCM..
|
||||
* Deregister the se_tpg from TCM.
|
||||
*/
|
||||
core_tpg_deregister(se_tpg);
|
||||
kfree(tpg);
|
||||
|
|
@ -1995,7 +1992,7 @@ static int scsiback_register_configfs(void)
|
|||
struct target_fabric_configfs *fabric;
|
||||
int ret;
|
||||
|
||||
pr_debug("xen-pvscsi: fabric module %s on %s/%s on "UTS_RELEASE"\n",
|
||||
pr_debug("fabric module %s on %s/%s on "UTS_RELEASE"\n",
|
||||
VSCSI_VERSION, utsname()->sysname, utsname()->machine);
|
||||
/*
|
||||
* Register the top level struct config_item_type with TCM core
|
||||
|
|
@ -2032,7 +2029,7 @@ static int scsiback_register_configfs(void)
|
|||
* Setup our local pointer to *fabric
|
||||
*/
|
||||
scsiback_fabric_configfs = fabric;
|
||||
pr_debug("xen-pvscsi: Set fabric -> scsiback_fabric_configfs\n");
|
||||
pr_debug("Set fabric -> scsiback_fabric_configfs\n");
|
||||
return 0;
|
||||
};
|
||||
|
||||
|
|
@ -2043,7 +2040,7 @@ static void scsiback_deregister_configfs(void)
|
|||
|
||||
target_fabric_configfs_deregister(scsiback_fabric_configfs);
|
||||
scsiback_fabric_configfs = NULL;
|
||||
pr_debug("xen-pvscsi: Cleared scsiback_fabric_configfs\n");
|
||||
pr_debug("Cleared scsiback_fabric_configfs\n");
|
||||
};
|
||||
|
||||
static const struct xenbus_device_id scsiback_ids[] = {
|
||||
|
|
@ -2094,7 +2091,7 @@ static int __init scsiback_init(void)
|
|||
xenbus_unregister_driver(&scsiback_driver);
|
||||
out_cache_destroy:
|
||||
kmem_cache_destroy(scsiback_cachep);
|
||||
pr_err("xen-pvscsi: %s: error %d\n", __func__, ret);
|
||||
pr_err("%s: error %d\n", __func__, ret);
|
||||
return ret;
|
||||
}
|
||||
|
||||
|
|
|
|||
Loading…
Reference in New Issue