Merge branch 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending

Pull SCSI target updates from Nicholas Bellinger:
 "The highlights this round include:

   - Introduce configfs support for unlocked configfs_depend_item()
     (krzysztof + andrezej)
   - Conversion of usb-gadget target driver to new function registration
     interface (andrzej + sebastian)
   - Enable qla2xxx FC target mode support for Extended Logins (himansu +
     giridhar)
   - Enable qla2xxx FC target mode support for Exchange Offload (himansu +
     giridhar)
   - Add qla2xxx FC target mode irq affinity notification + selective
     command queuing.  (quinn + himanshu)
   - Fix iscsi-target deadlock in se_node_acl configfs deletion (sagi +
     nab)
   - Convert se_node_acl configfs deletion + se_node_acl->queue_depth to
     proper se_session->sess_kref + target_get_session() usage.  (hch +
     sagi + nab)
   - Fix long-standing race between se_node_acl->acl_kref get and
     get_initiator_node_acl() lookup.  (hch + nab)
   - Fix target/user block-size handling, and make sure netlink reaches
     all network namespaces (sheng + andy)

  Note there is an outstanding bug-fix series for remote I_T nexus port
  TMR LUN_RESET has been posted and still being tested, and will likely
  become post -rc1 material at this point"

* 'for-next' of git://git.kernel.org/pub/scm/linux/kernel/git/nab/target-pending: (56 commits)
  scsi: qla2xxxx: avoid type mismatch in comparison
  target/user: Make sure netlink would reach all network namespaces
  target: Obtain se_node_acl->acl_kref during get_initiator_node_acl
  target: Convert ACL change queue_depth se_session reference usage
  iscsi-target: Fix potential dead-lock during node acl delete
  ib_srpt: Convert acl lookup to modern get_initiator_node_acl usage
  tcm_fc: Convert acl lookup to modern get_initiator_node_acl usage
  tcm_fc: Wait for command completion before freeing a session
  target: Fix a memory leak in target_dev_lba_map_store()
  target: Support aborting tasks with a 64-bit tag
  usb/gadget: Remove set-but-not-used variables
  target: Remove an unused variable
  target: Fix indentation in target_core_configfs.c
  target/user: Allow user to set block size before enabling device
  iser-target: Fix non negative ERR_PTR isert_device_get usage
  target/fcoe: Add tag support to tcm_fc
  qla2xxx: Check for online flag instead of active reset when transmitting responses
  qla2xxx: Set all queues to 4k
  qla2xxx: Disable ZIO at start time.
  qla2xxx: Move atioq to a different lock to reduce lock contention
  ...

1 files changed, 106 insertions, 0 deletions

diff --git a/drivers/scsi/qla2xxx/qla_dfs.c b/drivers/scsi/qla2xxx/qla_dfs.c
index 15cf074ffa3c..cd8b96a4b0dd 100644
--- a/drivers/scsi/qla2xxx/qla_dfs.c
+++ b/drivers/scsi/qla2xxx/qla_dfs.c
@@ -13,6 +13,85 @@ static struct dentry *qla2x00_dfs_root;
 static atomic_t qla2x00_dfs_root_count;
 
 static int
+qla_dfs_fw_resource_cnt_show(struct seq_file *s, void *unused)
+{
+	struct scsi_qla_host *vha = s->private;
+	struct qla_hw_data *ha = vha->hw;
+
+	seq_puts(s, "FW Resource count\n\n");
+	seq_printf(s, "Original TGT exchg count[%d]\n",
+	    ha->orig_fw_tgt_xcb_count);
+	seq_printf(s, "current TGT exchg count[%d]\n",
+	    ha->cur_fw_tgt_xcb_count);
+	seq_printf(s, "original Initiator Exchange count[%d]\n",
+	    ha->orig_fw_xcb_count);
+	seq_printf(s, "Current Initiator Exchange count[%d]\n",
+	    ha->cur_fw_xcb_count);
+	seq_printf(s, "Original IOCB count[%d]\n", ha->orig_fw_iocb_count);
+	seq_printf(s, "Current IOCB count[%d]\n", ha->cur_fw_iocb_count);
+	seq_printf(s, "MAX VP count[%d]\n", ha->max_npiv_vports);
+	seq_printf(s, "MAX FCF count[%d]\n", ha->fw_max_fcf_count);
+
+	return 0;
+}
+
+static int
+qla_dfs_fw_resource_cnt_open(struct inode *inode, struct file *file)
+{
+	struct scsi_qla_host *vha = inode->i_private;
+	return single_open(file, qla_dfs_fw_resource_cnt_show, vha);
+}
+
+static const struct file_operations dfs_fw_resource_cnt_ops = {
+	.open           = qla_dfs_fw_resource_cnt_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release        = single_release,
+};
+
+static int
+qla_dfs_tgt_counters_show(struct seq_file *s, void *unused)
+{
+	struct scsi_qla_host *vha = s->private;
+
+	seq_puts(s, "Target Counters\n");
+	seq_printf(s, "qla_core_sbt_cmd = %lld\n",
+		vha->tgt_counters.qla_core_sbt_cmd);
+	seq_printf(s, "qla_core_ret_sta_ctio = %lld\n",
+		vha->tgt_counters.qla_core_ret_sta_ctio);
+	seq_printf(s, "qla_core_ret_ctio = %lld\n",
+		vha->tgt_counters.qla_core_ret_ctio);
+	seq_printf(s, "core_qla_que_buf = %lld\n",
+		vha->tgt_counters.core_qla_que_buf);
+	seq_printf(s, "core_qla_snd_status = %lld\n",
+		vha->tgt_counters.core_qla_snd_status);
+	seq_printf(s, "core_qla_free_cmd = %lld\n",
+		vha->tgt_counters.core_qla_free_cmd);
+	seq_printf(s, "num alloc iocb failed = %lld\n",
+		vha->tgt_counters.num_alloc_iocb_failed);
+	seq_printf(s, "num term exchange sent = %lld\n",
+		vha->tgt_counters.num_term_xchg_sent);
+	seq_printf(s, "num Q full sent = %lld\n",
+		vha->tgt_counters.num_q_full_sent);
+
+	return 0;
+}
+
+static int
+qla_dfs_tgt_counters_open(struct inode *inode, struct file *file)
+{
+	struct scsi_qla_host *vha = inode->i_private;
+	return single_open(file, qla_dfs_tgt_counters_show, vha);
+}
+
+static const struct file_operations dfs_tgt_counters_ops = {
+	.open           = qla_dfs_tgt_counters_open,
+	.read           = seq_read,
+	.llseek         = seq_lseek,
+	.release        = single_release,
+};
+
+static int
 qla2x00_dfs_fce_show(struct seq_file *s, void *unused)
 {
 	scsi_qla_host_t *vha = s->private;
@@ -146,6 +225,22 @@ create_dir:
 	atomic_inc(&qla2x00_dfs_root_count);
 
 create_nodes:
+	ha->dfs_fw_resource_cnt = debugfs_create_file("fw_resource_count",
+	    S_IRUSR, ha->dfs_dir, vha, &dfs_fw_resource_cnt_ops);
+	if (!ha->dfs_fw_resource_cnt) {
+		ql_log(ql_log_warn, vha, 0x00fd,
+		    "Unable to create debugFS fw_resource_count node.\n");
+		goto out;
+	}
+
+	ha->dfs_tgt_counters = debugfs_create_file("tgt_counters", S_IRUSR,
+	    ha->dfs_dir, vha, &dfs_tgt_counters_ops);
+	if (!ha->dfs_tgt_counters) {
+		ql_log(ql_log_warn, vha, 0xd301,
+		    "Unable to create debugFS tgt_counters node.\n");
+		goto out;
+	}
+
 	ha->dfs_fce = debugfs_create_file("fce", S_IRUSR, ha->dfs_dir, vha,
 	    &dfs_fce_ops);
 	if (!ha->dfs_fce) {
@@ -161,6 +256,17 @@ int
 qla2x00_dfs_remove(scsi_qla_host_t *vha)
 {
 	struct qla_hw_data *ha = vha->hw;
+
+	if (ha->dfs_fw_resource_cnt) {
+		debugfs_remove(ha->dfs_fw_resource_cnt);
+		ha->dfs_fw_resource_cnt = NULL;
+	}
+
+	if (ha->dfs_tgt_counters) {
+		debugfs_remove(ha->dfs_tgt_counters);
+		ha->dfs_tgt_counters = NULL;
+	}
+
 	if (ha->dfs_fce) {
 		debugfs_remove(ha->dfs_fce);
 		ha->dfs_fce = NULL;