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path: root/drivers/vhost/scsi.c
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Diffstat (limited to 'drivers/vhost/scsi.c')
-rw-r--r--drivers/vhost/scsi.c72
1 files changed, 8 insertions, 64 deletions
diff --git a/drivers/vhost/scsi.c b/drivers/vhost/scsi.c
index b244e7c0f514..139ad52d0aa1 100644
--- a/drivers/vhost/scsi.c
+++ b/drivers/vhost/scsi.c
@@ -125,7 +125,6 @@ struct vhost_scsi_tpg {
struct se_portal_group se_tpg;
/* Pointer back to vhost_scsi, protected by tv_tpg_mutex */
struct vhost_scsi *vhost_scsi;
- struct list_head tmf_queue;
};
struct vhost_scsi_tport {
@@ -206,10 +205,8 @@ struct vhost_scsi {
struct vhost_scsi_tmf {
struct vhost_work vwork;
- struct vhost_scsi_tpg *tpg;
struct vhost_scsi *vhost;
struct vhost_scsi_virtqueue *svq;
- struct list_head queue_entry;
struct se_cmd se_cmd;
u8 scsi_resp;
@@ -294,11 +291,6 @@ static int vhost_scsi_check_true(struct se_portal_group *se_tpg)
return 1;
}
-static int vhost_scsi_check_false(struct se_portal_group *se_tpg)
-{
- return 0;
-}
-
static char *vhost_scsi_get_fabric_wwn(struct se_portal_group *se_tpg)
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
@@ -323,11 +315,6 @@ static int vhost_scsi_check_prot_fabric_only(struct se_portal_group *se_tpg)
return tpg->tv_fabric_prot_type;
}
-static u32 vhost_scsi_tpg_get_inst_index(struct se_portal_group *se_tpg)
-{
- return 1;
-}
-
static void vhost_scsi_release_cmd_res(struct se_cmd *se_cmd)
{
struct vhost_scsi_cmd *tv_cmd = container_of(se_cmd,
@@ -352,12 +339,9 @@ static void vhost_scsi_release_cmd_res(struct se_cmd *se_cmd)
static void vhost_scsi_release_tmf_res(struct vhost_scsi_tmf *tmf)
{
- struct vhost_scsi_tpg *tpg = tmf->tpg;
struct vhost_scsi_inflight *inflight = tmf->inflight;
- mutex_lock(&tpg->tv_tpg_mutex);
- list_add_tail(&tpg->tmf_queue, &tmf->queue_entry);
- mutex_unlock(&tpg->tv_tpg_mutex);
+ kfree(tmf);
vhost_scsi_put_inflight(inflight);
}
@@ -378,11 +362,6 @@ static void vhost_scsi_release_cmd(struct se_cmd *se_cmd)
}
}
-static u32 vhost_scsi_sess_get_index(struct se_session *se_sess)
-{
- return 0;
-}
-
static int vhost_scsi_write_pending(struct se_cmd *se_cmd)
{
/* Go ahead and process the write immediately */
@@ -390,16 +369,6 @@ static int vhost_scsi_write_pending(struct se_cmd *se_cmd)
return 0;
}
-static void vhost_scsi_set_default_node_attrs(struct se_node_acl *nacl)
-{
- return;
-}
-
-static int vhost_scsi_get_cmd_state(struct se_cmd *se_cmd)
-{
- return 0;
-}
-
static int vhost_scsi_queue_data_in(struct se_cmd *se_cmd)
{
transport_generic_free_cmd(se_cmd, 0);
@@ -671,7 +640,7 @@ vhost_scsi_calc_sgls(struct iov_iter *iter, size_t bytes, int max_sgls)
{
int sgl_count = 0;
- if (!iter || !iter->iov) {
+ if (!iter || !iter_iov(iter)) {
pr_err("%s: iter->iov is NULL, but expected bytes: %zu"
" present\n", __func__, bytes);
return -EINVAL;
@@ -1194,19 +1163,11 @@ vhost_scsi_handle_tmf(struct vhost_scsi *vs, struct vhost_scsi_tpg *tpg,
goto send_reject;
}
- mutex_lock(&tpg->tv_tpg_mutex);
- if (list_empty(&tpg->tmf_queue)) {
- pr_err("Missing reserve TMF. Could not handle LUN RESET.\n");
- mutex_unlock(&tpg->tv_tpg_mutex);
+ tmf = kzalloc(sizeof(*tmf), GFP_KERNEL);
+ if (!tmf)
goto send_reject;
- }
-
- tmf = list_first_entry(&tpg->tmf_queue, struct vhost_scsi_tmf,
- queue_entry);
- list_del_init(&tmf->queue_entry);
- mutex_unlock(&tpg->tv_tpg_mutex);
- tmf->tpg = tpg;
+ vhost_work_init(&tmf->vwork, vhost_scsi_tmf_resp_work);
tmf->vhost = vs;
tmf->svq = svq;
tmf->resp_iov = vq->iov[vc->out];
@@ -1658,7 +1619,10 @@ undepend:
for (i = 0; i < VHOST_SCSI_MAX_TARGET; i++) {
tpg = vs_tpg[i];
if (tpg) {
+ mutex_lock(&tpg->tv_tpg_mutex);
+ tpg->vhost_scsi = NULL;
tpg->tv_tpg_vhost_count--;
+ mutex_unlock(&tpg->tv_tpg_mutex);
target_undepend_item(&tpg->se_tpg.tpg_group.cg_item);
}
}
@@ -2032,19 +1996,11 @@ static int vhost_scsi_port_link(struct se_portal_group *se_tpg,
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tmf *tmf;
-
- tmf = kzalloc(sizeof(*tmf), GFP_KERNEL);
- if (!tmf)
- return -ENOMEM;
- INIT_LIST_HEAD(&tmf->queue_entry);
- vhost_work_init(&tmf->vwork, vhost_scsi_tmf_resp_work);
mutex_lock(&vhost_scsi_mutex);
mutex_lock(&tpg->tv_tpg_mutex);
tpg->tv_tpg_port_count++;
- list_add_tail(&tmf->queue_entry, &tpg->tmf_queue);
mutex_unlock(&tpg->tv_tpg_mutex);
vhost_scsi_hotplug(tpg, lun);
@@ -2059,16 +2015,11 @@ static void vhost_scsi_port_unlink(struct se_portal_group *se_tpg,
{
struct vhost_scsi_tpg *tpg = container_of(se_tpg,
struct vhost_scsi_tpg, se_tpg);
- struct vhost_scsi_tmf *tmf;
mutex_lock(&vhost_scsi_mutex);
mutex_lock(&tpg->tv_tpg_mutex);
tpg->tv_tpg_port_count--;
- tmf = list_first_entry(&tpg->tmf_queue, struct vhost_scsi_tmf,
- queue_entry);
- list_del(&tmf->queue_entry);
- kfree(tmf);
mutex_unlock(&tpg->tv_tpg_mutex);
vhost_scsi_hotunplug(tpg, lun);
@@ -2329,7 +2280,6 @@ vhost_scsi_make_tpg(struct se_wwn *wwn, const char *name)
}
mutex_init(&tpg->tv_tpg_mutex);
INIT_LIST_HEAD(&tpg->tv_tpg_list);
- INIT_LIST_HEAD(&tpg->tmf_queue);
tpg->tport = tport;
tpg->tport_tpgt = tpgt;
@@ -2460,17 +2410,11 @@ static const struct target_core_fabric_ops vhost_scsi_ops = {
.tpg_get_tag = vhost_scsi_get_tpgt,
.tpg_check_demo_mode = vhost_scsi_check_true,
.tpg_check_demo_mode_cache = vhost_scsi_check_true,
- .tpg_check_demo_mode_write_protect = vhost_scsi_check_false,
- .tpg_check_prod_mode_write_protect = vhost_scsi_check_false,
.tpg_check_prot_fabric_only = vhost_scsi_check_prot_fabric_only,
- .tpg_get_inst_index = vhost_scsi_tpg_get_inst_index,
.release_cmd = vhost_scsi_release_cmd,
.check_stop_free = vhost_scsi_check_stop_free,
- .sess_get_index = vhost_scsi_sess_get_index,
.sess_get_initiator_sid = NULL,
.write_pending = vhost_scsi_write_pending,
- .set_default_node_attributes = vhost_scsi_set_default_node_attrs,
- .get_cmd_state = vhost_scsi_get_cmd_state,
.queue_data_in = vhost_scsi_queue_data_in,
.queue_status = vhost_scsi_queue_status,
.queue_tm_rsp = vhost_scsi_queue_tm_rsp,
generated by cgit v1.2.3 (git 2.46.0) at 2025-08-01 14:03:41 +0000