mirror of
https://github.com/AuxXxilium/linux_dsm_epyc7002.git
synced 2024-11-24 22:40:53 +07:00
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 @@
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* IN THE SOFTWARE.
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*/
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#define pr_fmt(fmt) "xen-pvscsi: " fmt
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#include <stdarg.h>
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#include <linux/module.h>
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@ -69,9 +71,6 @@
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#include <xen/interface/grant_table.h>
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#include <xen/interface/io/vscsiif.h>
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#define DPRINTK(_f, _a...) \
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pr_debug("(file=%s, line=%d) " _f, __FILE__ , __LINE__ , ## _a)
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#define VSCSI_VERSION "v0.1"
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#define VSCSI_NAMELEN 32
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@ -271,7 +270,7 @@ static void scsiback_print_status(char *sense_buffer, int errors,
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{
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struct scsiback_tpg *tpg = pending_req->v2p->tpg;
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pr_err("xen-pvscsi[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
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pr_err("[%s:%d] cmnd[0]=%02x -> st=%02x msg=%02x host=%02x drv=%02x\n",
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tpg->tport->tport_name, pending_req->v2p->lun,
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pending_req->cmnd[0], status_byte(errors), msg_byte(errors),
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host_byte(errors), driver_byte(errors));
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@ -427,7 +426,7 @@ static int scsiback_gnttab_data_map_batch(struct gnttab_map_grant_ref *map,
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BUG_ON(err);
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for (i = 0; i < cnt; i++) {
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if (unlikely(map[i].status != GNTST_okay)) {
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pr_err("xen-pvscsi: invalid buffer -- could not remap it\n");
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pr_err("invalid buffer -- could not remap it\n");
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map[i].handle = SCSIBACK_INVALID_HANDLE;
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err = -ENOMEM;
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} else {
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@ -449,7 +448,7 @@ static int scsiback_gnttab_data_map_list(struct vscsibk_pend *pending_req,
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for (i = 0; i < cnt; i++) {
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if (get_free_page(pg + mapcount)) {
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put_free_pages(pg, mapcount);
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pr_err("xen-pvscsi: no grant page\n");
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pr_err("no grant page\n");
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return -ENOMEM;
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}
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gnttab_set_map_op(&map[mapcount], vaddr_page(pg[mapcount]),
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@ -492,7 +491,7 @@ static int scsiback_gnttab_data_map(struct vscsiif_request *ring_req,
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return 0;
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if (nr_segments > VSCSIIF_SG_TABLESIZE) {
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DPRINTK("xen-pvscsi: invalid parameter nr_seg = %d\n",
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pr_debug("invalid parameter nr_seg = %d\n",
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ring_req->nr_segments);
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return -EINVAL;
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}
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@ -516,13 +515,12 @@ static int scsiback_gnttab_data_map(struct vscsiif_request *ring_req,
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nr_segments += n_segs;
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}
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if (nr_segments > SG_ALL) {
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DPRINTK("xen-pvscsi: invalid nr_seg = %d\n",
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nr_segments);
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pr_debug("invalid nr_seg = %d\n", nr_segments);
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return -EINVAL;
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}
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}
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/* free of (sgl) in fast_flush_area()*/
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/* free of (sgl) in fast_flush_area() */
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pending_req->sgl = kmalloc_array(nr_segments,
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sizeof(struct scatterlist), GFP_KERNEL);
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if (!pending_req->sgl)
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@ -679,7 +677,8 @@ static int prepare_pending_reqs(struct vscsibk_info *info,
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v2p = scsiback_do_translation(info, &vir);
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if (!v2p) {
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pending_req->v2p = NULL;
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DPRINTK("xen-pvscsi: doesn't exist.\n");
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pr_debug("the v2p of (chn:%d, tgt:%d, lun:%d) doesn't exist.\n",
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vir.chn, vir.tgt, vir.lun);
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return -ENODEV;
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}
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pending_req->v2p = v2p;
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@ -690,14 +689,14 @@ static int prepare_pending_reqs(struct vscsibk_info *info,
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(pending_req->sc_data_direction != DMA_TO_DEVICE) &&
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(pending_req->sc_data_direction != DMA_FROM_DEVICE) &&
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(pending_req->sc_data_direction != DMA_NONE)) {
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DPRINTK("xen-pvscsi: invalid parameter data_dir = %d\n",
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pr_debug("invalid parameter data_dir = %d\n",
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pending_req->sc_data_direction);
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return -EINVAL;
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}
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pending_req->cmd_len = ring_req->cmd_len;
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if (pending_req->cmd_len > VSCSIIF_MAX_COMMAND_SIZE) {
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DPRINTK("xen-pvscsi: invalid parameter cmd_len = %d\n",
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pr_debug("invalid parameter cmd_len = %d\n",
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pending_req->cmd_len);
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return -EINVAL;
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}
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@ -721,7 +720,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
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if (RING_REQUEST_PROD_OVERFLOW(ring, rp)) {
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rc = ring->rsp_prod_pvt;
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pr_warn("xen-pvscsi: Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
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pr_warn("Dom%d provided bogus ring requests (%#x - %#x = %u). Halting ring processing\n",
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info->domid, rp, rc, rp - rc);
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info->ring_error = 1;
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return 0;
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@ -772,7 +771,7 @@ static int scsiback_do_cmd_fn(struct vscsibk_info *info)
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scsiback_device_action(pending_req, TMR_LUN_RESET, 0);
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break;
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default:
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pr_err_ratelimited("xen-pvscsi: invalid request\n");
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pr_err_ratelimited("invalid request\n");
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scsiback_do_resp_with_sense(NULL, DRIVER_ERROR << 24,
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0, pending_req);
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kmem_cache_free(scsiback_cachep, pending_req);
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@ -874,14 +873,13 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
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lunp = strrchr(phy, ':');
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if (!lunp) {
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pr_err("xen-pvscsi: illegal format of physical device %s\n",
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phy);
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pr_err("illegal format of physical device %s\n", phy);
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return -EINVAL;
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}
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*lunp = 0;
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lunp++;
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if (kstrtouint(lunp, 10, &lun) || lun >= TRANSPORT_MAX_LUNS_PER_TPG) {
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pr_err("xen-pvscsi: lun number not valid: %s\n", lunp);
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pr_err("lun number not valid: %s\n", lunp);
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return -EINVAL;
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}
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@ -909,7 +907,7 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
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mutex_unlock(&scsiback_mutex);
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if (!tpg) {
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pr_err("xen-pvscsi: %s:%d %s\n", phy, lun, error);
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pr_err("%s:%d %s\n", phy, lun, error);
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return -ENODEV;
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}
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@ -926,7 +924,7 @@ static int scsiback_add_translation_entry(struct vscsibk_info *info,
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if ((entry->v.chn == v->chn) &&
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(entry->v.tgt == v->tgt) &&
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(entry->v.lun == v->lun)) {
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pr_warn("xen-pvscsi: Virtual ID is already used. Assignment was not performed.\n");
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pr_warn("Virtual ID is already used. Assignment was not performed.\n");
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err = -EEXIST;
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goto out;
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}
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@ -997,7 +995,7 @@ static void scsiback_do_add_lun(struct vscsibk_info *info, const char *state,
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if (!scsiback_add_translation_entry(info, phy, vir)) {
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if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
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"%d", XenbusStateInitialised)) {
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pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
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pr_err("xenbus_printf error %s\n", state);
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scsiback_del_translation_entry(info, vir);
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}
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} else {
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@ -1012,7 +1010,7 @@ static void scsiback_do_del_lun(struct vscsibk_info *info, const char *state,
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if (!scsiback_del_translation_entry(info, vir)) {
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if (xenbus_printf(XBT_NIL, info->dev->nodename, state,
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"%d", XenbusStateClosed))
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pr_err("xen-pvscsi: xenbus_printf error %s\n", state);
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pr_err("xenbus_printf error %s\n", state);
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}
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}
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@ -1071,15 +1069,14 @@ static void scsiback_do_1lun_hotplug(struct vscsibk_info *info, int op,
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/* modify vscsi-devs/dev-x/state */
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if (xenbus_printf(XBT_NIL, dev->nodename, state,
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"%d", XenbusStateConnected)) {
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pr_err("xen-pvscsi: xenbus_printf error %s\n",
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str);
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pr_err("xenbus_printf error %s\n", str);
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scsiback_del_translation_entry(info, &vir);
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xenbus_printf(XBT_NIL, dev->nodename, state,
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"%d", XenbusStateClosed);
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}
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}
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break;
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/*When it is necessary, processing is added here.*/
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/* When it is necessary, processing is added here. */
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default:
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break;
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}
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@ -1196,7 +1193,7 @@ static int scsiback_probe(struct xenbus_device *dev,
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struct vscsibk_info *info = kzalloc(sizeof(struct vscsibk_info),
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GFP_KERNEL);
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DPRINTK("%p %d\n", dev, dev->otherend_id);
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pr_debug("%s %p %d\n", __func__, dev, dev->otherend_id);
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if (!info) {
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xenbus_dev_fatal(dev, -ENOMEM, "allocating backend structure");
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@ -1227,7 +1224,7 @@ static int scsiback_probe(struct xenbus_device *dev,
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return 0;
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fail:
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pr_warn("xen-pvscsi: %s failed\n", __func__);
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pr_warn("%s failed\n", __func__);
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scsiback_remove(dev);
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return err;
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@ -1432,7 +1429,7 @@ scsiback_make_tport(struct target_fabric_configfs *tf,
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}
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snprintf(&tport->tport_name[0], VSCSI_NAMELEN, "%s", &name[off]);
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pr_debug("xen-pvscsi: Allocated emulated Target %s Address: %s\n",
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pr_debug("Allocated emulated Target %s Address: %s\n",
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scsiback_dump_proto_id(tport), name);
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return &tport->tport_wwn;
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@ -1443,7 +1440,7 @@ static void scsiback_drop_tport(struct se_wwn *wwn)
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struct scsiback_tport *tport = container_of(wwn,
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struct scsiback_tport, tport_wwn);
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pr_debug("xen-pvscsi: Deallocating emulated Target %s Address: %s\n",
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pr_debug("Deallocating emulated Target %s Address: %s\n",
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scsiback_dump_proto_id(tport), tport->tport_name);
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kfree(tport);
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@ -1470,8 +1467,8 @@ static u32 scsiback_tpg_get_inst_index(struct se_portal_group *se_tpg)
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static int scsiback_check_stop_free(struct se_cmd *se_cmd)
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{
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/*
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* Do not release struct se_cmd's containing a valid TMR
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* pointer. These will be released directly in scsiback_device_action()
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* Do not release struct se_cmd's containing a valid TMR pointer.
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* These will be released directly in scsiback_device_action()
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* with transport_generic_free_cmd().
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*/
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if (se_cmd->se_cmd_flags & SCF_SCSI_TMR_CDB)
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@ -1637,7 +1634,7 @@ static int scsiback_make_nexus(struct scsiback_tpg *tpg,
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return -ENOMEM;
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}
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/*
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* Initialize the struct se_session pointer
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* Initialize the struct se_session pointer
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*/
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tv_nexus->tvn_se_sess = transport_init_session(TARGET_PROT_NORMAL);
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if (IS_ERR(tv_nexus->tvn_se_sess)) {
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@ -1708,7 +1705,7 @@ static int scsiback_drop_nexus(struct scsiback_tpg *tpg)
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return -EBUSY;
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}
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pr_debug("xen-pvscsi: Removing I_T Nexus to emulated %s Initiator Port: %s\n",
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pr_debug("Removing I_T Nexus to emulated %s Initiator Port: %s\n",
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scsiback_dump_proto_id(tpg->tport),
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tv_nexus->tvn_se_sess->se_node_acl->initiatorname);
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@ -1754,7 +1751,7 @@ static ssize_t scsiback_tpg_store_nexus(struct se_portal_group *se_tpg,
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unsigned char i_port[VSCSI_NAMELEN], *ptr, *port_ptr;
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int ret;
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/*
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* Shutdown the active I_T nexus if 'NULL' is passed..
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* Shutdown the active I_T nexus if 'NULL' is passed.
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*/
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if (!strncmp(page, "NULL", 4)) {
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ret = scsiback_drop_nexus(tpg);
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@ -1925,7 +1922,7 @@ static void scsiback_drop_tpg(struct se_portal_group *se_tpg)
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*/
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scsiback_drop_nexus(tpg);
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/*
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* Deregister the se_tpg from TCM..
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* Deregister the se_tpg from TCM.
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*/
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core_tpg_deregister(se_tpg);
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kfree(tpg);
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@ -1995,7 +1992,7 @@ static int scsiback_register_configfs(void)
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struct target_fabric_configfs *fabric;
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int ret;
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pr_debug("xen-pvscsi: fabric module %s on %s/%s on "UTS_RELEASE"\n",
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pr_debug("fabric module %s on %s/%s on "UTS_RELEASE"\n",
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VSCSI_VERSION, utsname()->sysname, utsname()->machine);
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/*
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* Register the top level struct config_item_type with TCM core
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@ -2032,7 +2029,7 @@ static int scsiback_register_configfs(void)
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* Setup our local pointer to *fabric
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*/
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scsiback_fabric_configfs = fabric;
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pr_debug("xen-pvscsi: Set fabric -> scsiback_fabric_configfs\n");
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pr_debug("Set fabric -> scsiback_fabric_configfs\n");
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return 0;
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};
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@ -2043,7 +2040,7 @@ static void scsiback_deregister_configfs(void)
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target_fabric_configfs_deregister(scsiback_fabric_configfs);
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scsiback_fabric_configfs = NULL;
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pr_debug("xen-pvscsi: Cleared scsiback_fabric_configfs\n");
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pr_debug("Cleared scsiback_fabric_configfs\n");
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};
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static const struct xenbus_device_id scsiback_ids[] = {
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@ -2094,7 +2091,7 @@ static int __init scsiback_init(void)
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xenbus_unregister_driver(&scsiback_driver);
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out_cache_destroy:
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kmem_cache_destroy(scsiback_cachep);
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pr_err("xen-pvscsi: %s: error %d\n", __func__, ret);
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pr_err("%s: error %d\n", __func__, ret);
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return ret;
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}
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