@@ -3322,6 +3322,7 @@ struct qlt_hw_data {
struct dentry *dfs_tgt_sess;
struct dentry *dfs_tgt_port_database;
+ struct dentry *dfs_naqp;
struct list_head q_full_list;
uint32_t num_pend_cmds;
@@ -3330,7 +3331,8 @@ struct qlt_hw_data {
spinlock_t q_full_lock;
uint32_t leak_exchg_thresh_hold;
spinlock_t sess_lock;
- int rspq_vector_cpuid;
+ int num_act_qpairs;
+#define DEFAULT_NAQP 2
spinlock_t atio_lock ____cacheline_aligned;
struct btree_head32 host_map;
};
@@ -4278,6 +4280,9 @@ enum nexus_wait_type {
WAIT_LUN,
};
+#define USER_CTRL_IRQ(_ha) (ql2xuctrlirq && QLA_TGT_MODE_ENABLED() && \
+ (IS_QLA27XX(_ha) || IS_QLA83XX(_ha)))
+
#include "qla_target.h"
#include "qla_gbl.h"
#include "qla_dbg.h"
@@ -314,6 +314,81 @@ static const struct file_operations dfs_fce_ops = {
.release = qla2x00_dfs_fce_release,
};
+static int
+qla_dfs_naqp_show(struct seq_file *s, void *unused)
+{
+ struct scsi_qla_host *vha = s->private;
+ struct qla_hw_data *ha = vha->hw;
+
+ seq_printf(s, "%d\n", ha->tgt.num_act_qpairs);
+ return 0;
+}
+
+static int
+qla_dfs_naqp_open(struct inode *inode, struct file *file)
+{
+ struct scsi_qla_host *vha = inode->i_private;
+
+ return single_open(file, qla_dfs_naqp_show, vha);
+}
+
+static ssize_t
+qla_dfs_naqp_write(struct file *file, const char __user *buffer,
+ size_t count, loff_t *pos)
+{
+ struct seq_file *s = file->private_data;
+ struct scsi_qla_host *vha = s->private;
+ struct qla_hw_data *ha = vha->hw;
+ char *buf;
+ int rc = 0;
+ unsigned long num_act_qp;
+
+ if (!(IS_QLA27XX(ha) || IS_QLA83XX(ha))) {
+ pr_err("host%ld: this adapter does not support Multi Q.",
+ vha->host_no);
+ return -EINVAL;
+ }
+
+ if (!vha->flags.qpairs_available) {
+ pr_err("host%ld: Driver is not setup with Multi Q.",
+ vha->host_no);
+ return -EINVAL;
+ }
+ buf = memdup_user_nul(buffer, count);
+ if (IS_ERR(buf)) {
+ pr_err("host%ld: fail to copy user buffer.",
+ vha->host_no);
+ return PTR_ERR(buf);
+ }
+
+ num_act_qp = simple_strtoul(buf, NULL, 0);
+
+ if (num_act_qp >= vha->hw->max_qpairs) {
+ pr_err("User set invalid number of qpairs %lu. Max = %d",
+ num_act_qp, vha->hw->max_qpairs);
+ rc = -EINVAL;
+ goto out_free;
+ }
+
+ if (num_act_qp != ha->tgt.num_act_qpairs) {
+ ha->tgt.num_act_qpairs = num_act_qp;
+ qlt_clr_qp_table(vha);
+ }
+ rc = count;
+out_free:
+ kfree(buf);
+ return rc;
+}
+
+static const struct file_operations dfs_naqp_ops = {
+ .open = qla_dfs_naqp_open,
+ .read = seq_read,
+ .llseek = seq_lseek,
+ .release = single_release,
+ .write = qla_dfs_naqp_write,
+};
+
+
int
qla2x00_dfs_setup(scsi_qla_host_t *vha)
{
@@ -391,6 +466,15 @@ qla2x00_dfs_setup(scsi_qla_host_t *vha)
goto out;
}
+ if (IS_QLA27XX(ha) || IS_QLA83XX(ha)) {
+ ha->tgt.dfs_naqp = debugfs_create_file("naqp",
+ 0400, ha->dfs_dir, vha, &dfs_naqp_ops);
+ if (!ha->tgt.dfs_naqp) {
+ ql_log(ql_log_warn, vha, 0xd011,
+ "Unable to create debugFS naqp node.\n");
+ goto out;
+ }
+ }
out:
return 0;
}
@@ -400,6 +484,11 @@ qla2x00_dfs_remove(scsi_qla_host_t *vha)
{
struct qla_hw_data *ha = vha->hw;
+ if (ha->tgt.dfs_naqp) {
+ debugfs_remove(ha->tgt.dfs_naqp);
+ ha->tgt.dfs_naqp = NULL;
+ }
+
if (ha->tgt.dfs_tgt_sess) {
debugfs_remove(ha->tgt.dfs_tgt_sess);
ha->tgt.dfs_tgt_sess = NULL;
@@ -139,6 +139,7 @@ extern int ql2xexchoffld;
extern int ql2xiniexchg;
extern int ql2xfwholdabts;
extern int ql2xmvasynctoatio;
+extern int ql2xuctrlirq;
extern int qla2x00_loop_reset(scsi_qla_host_t *);
extern void qla2x00_abort_all_cmds(scsi_qla_host_t *, int);
@@ -856,5 +857,6 @@ void qla24xx_delete_sess_fn(struct work_struct *);
void qlt_unknown_atio_work_fn(struct work_struct *);
void qlt_update_host_map(struct scsi_qla_host *, port_id_t);
void qlt_remove_target_resources(struct qla_hw_data *);
+void qlt_clr_qp_table(struct scsi_qla_host *vha);
#endif /* _QLA_GBL_H */
@@ -3227,9 +3227,14 @@ qla24xx_enable_msix(struct qla_hw_data *ha, struct rsp_que *rsp)
min_vecs++;
}
- ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
- ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
- &desc);
+ if (USER_CTRL_IRQ(ha)) {
+ /* user wants to control IRQ setting for target mode */
+ ret = pci_alloc_irq_vectors(ha->pdev, min_vecs,
+ ha->msix_count, PCI_IRQ_MSIX);
+ } else
+ ret = pci_alloc_irq_vectors_affinity(ha->pdev, min_vecs,
+ ha->msix_count, PCI_IRQ_MSIX | PCI_IRQ_AFFINITY,
+ &desc);
if (ret < 0) {
ql_log(ql_log_fatal, vha, 0x00c7,
@@ -66,6 +66,13 @@ MODULE_PARM_DESC(ql_dm_tgt_ex_pct,
"the percentage of exchanges/cmds FW will allocate resources "
"for Target mode.");
+int ql2xuctrlirq = 1;
+module_param(ql2xuctrlirq, int, 0644);
+MODULE_PARM_DESC(ql2xuctrlirq,
+ "User to control IRQ placement via smp_affinity."
+ "Valid with qlini_mode=disabled."
+ "1(default): enable");
+
int ql2x_ini_mode = QLA2XXX_INI_MODE_EXCLUSIVE;
static int temp_sam_status = SAM_STAT_BUSY;
@@ -4059,6 +4066,31 @@ static void qlt_do_work(struct work_struct *work)
__qlt_do_work(cmd);
}
+void qlt_clr_qp_table(struct scsi_qla_host *vha)
+{
+ unsigned long flags;
+ struct qla_hw_data *ha = vha->hw;
+ struct qla_tgt *tgt = vha->vha_tgt.qla_tgt;
+ void *node;
+ u64 key = 0;
+
+ ql_log(ql_log_info, vha, 0x706c,
+ "User update Number of Active Qpairs %d\n",
+ ha->tgt.num_act_qpairs);
+
+ spin_lock_irqsave(&ha->tgt.atio_lock, flags);
+
+ btree_for_each_safe64(&tgt->lun_qpair_map, key, node)
+ btree_remove64(&tgt->lun_qpair_map, key);
+
+ ha->base_qpair->lun_cnt = 0;
+ for (key = 0; key < ha->max_qpairs; key++)
+ if (ha->queue_pair_map[key])
+ ha->queue_pair_map[key]->lun_cnt = 0;
+
+ spin_unlock_irqrestore(&ha->tgt.atio_lock, flags);
+}
+
static void qlt_assign_qpair(struct scsi_qla_host *vha,
struct qla_tgt_cmd *cmd)
{