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authorChad Dupuis <chad.dupuis@qlogic.com>2013-10-30 08:38:15 +0100
committerJames Bottomley <JBottomley@Parallels.com>2013-12-19 16:38:58 +0100
commitfe1b806f4f7172b1eae18ddeebb7d8fb351043f7 (patch)
treea18bba2af3f15f73dd953575af1054b529a4d20b
parent[SCSI] Revert "qla2xxx: Ramp down queue depth for attached SCSI devices when ... (diff)
downloadlinux-fe1b806f4f7172b1eae18ddeebb7d8fb351043f7.tar.xz
linux-fe1b806f4f7172b1eae18ddeebb7d8fb351043f7.zip
[SCSI] qla2xxx: Refactor shutdown code so some functionality can be reused.
Signed-off-by: Chad Dupuis <chad.dupuis@qlogic.com> Signed-off-by: Saurav Kashyap <saurav.kashyap@qlogic.com> Signed-off-by: James Bottomley <JBottomley@Parallels.com>
-rw-r--r--drivers/scsi/qla2xxx/qla_attr.c4
-rw-r--r--drivers/scsi/qla2xxx/qla_gbl.h3
-rw-r--r--drivers/scsi/qla2xxx/qla_os.c170
3 files changed, 96 insertions, 81 deletions
diff --git a/drivers/scsi/qla2xxx/qla_attr.c b/drivers/scsi/qla2xxx/qla_attr.c
index 5f174b83f56f..3464782ab5a4 100644
--- a/drivers/scsi/qla2xxx/qla_attr.c
+++ b/drivers/scsi/qla2xxx/qla_attr.c
@@ -862,7 +862,7 @@ qla2x00_alloc_sysfs_attr(scsi_qla_host_t *vha)
}
void
-qla2x00_free_sysfs_attr(scsi_qla_host_t *vha)
+qla2x00_free_sysfs_attr(scsi_qla_host_t *vha, bool stop_beacon)
{
struct Scsi_Host *host = vha->host;
struct sysfs_entry *iter;
@@ -880,7 +880,7 @@ qla2x00_free_sysfs_attr(scsi_qla_host_t *vha)
iter->attr);
}
- if (ha->beacon_blink_led == 1)
+ if (stop_beacon && ha->beacon_blink_led == 1)
ha->isp_ops->beacon_off(vha);
}
diff --git a/drivers/scsi/qla2xxx/qla_gbl.h b/drivers/scsi/qla2xxx/qla_gbl.h
index 826df52131a5..df52f73acabd 100644
--- a/drivers/scsi/qla2xxx/qla_gbl.h
+++ b/drivers/scsi/qla2xxx/qla_gbl.h
@@ -540,10 +540,9 @@ struct fc_function_template;
extern struct fc_function_template qla2xxx_transport_functions;
extern struct fc_function_template qla2xxx_transport_vport_functions;
extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
-extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
+extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *, bool);
extern void qla2x00_init_host_attr(scsi_qla_host_t *);
extern void qla2x00_alloc_sysfs_attr(scsi_qla_host_t *);
-extern void qla2x00_free_sysfs_attr(scsi_qla_host_t *);
extern int qla2x00_loopback_test(scsi_qla_host_t *, struct msg_echo_lb *, uint16_t *);
extern int qla2x00_echo_test(scsi_qla_host_t *,
struct msg_echo_lb *, uint16_t *);
diff --git a/drivers/scsi/qla2xxx/qla_os.c b/drivers/scsi/qla2xxx/qla_os.c
index a725efa47b35..c9e4372698a2 100644
--- a/drivers/scsi/qla2xxx/qla_os.c
+++ b/drivers/scsi/qla2xxx/qla_os.c
@@ -2906,22 +2906,6 @@ probe_out:
}
static void
-qla2x00_stop_dpc_thread(scsi_qla_host_t *vha)
-{
- struct qla_hw_data *ha = vha->hw;
- struct task_struct *t = ha->dpc_thread;
-
- if (ha->dpc_thread == NULL)
- return;
- /*
- * qla2xxx_wake_dpc checks for ->dpc_thread
- * so we need to zero it out.
- */
- ha->dpc_thread = NULL;
- kthread_stop(t);
-}
-
-static void
qla2x00_shutdown(struct pci_dev *pdev)
{
scsi_qla_host_t *vha;
@@ -2964,29 +2948,14 @@ qla2x00_shutdown(struct pci_dev *pdev)
qla2x00_free_fw_dump(ha);
}
+/* Deletes all the virtual ports for a given ha */
static void
-qla2x00_remove_one(struct pci_dev *pdev)
+qla2x00_delete_all_vps(struct qla_hw_data *ha, scsi_qla_host_t *base_vha)
{
- scsi_qla_host_t *base_vha, *vha;
- struct qla_hw_data *ha;
+ struct Scsi_Host *scsi_host;
+ scsi_qla_host_t *vha;
unsigned long flags;
- /*
- * If the PCI device is disabled that means that probe failed and any
- * resources should be have cleaned up on probe exit.
- */
- if (!atomic_read(&pdev->enable_cnt))
- return;
-
- base_vha = pci_get_drvdata(pdev);
- ha = base_vha->hw;
-
- ha->flags.host_shutting_down = 1;
-
- set_bit(UNLOADING, &base_vha->dpc_flags);
- if (IS_QLAFX00(ha))
- qlafx00_driver_shutdown(base_vha, 20);
-
mutex_lock(&ha->vport_lock);
while (ha->cur_vport_count) {
spin_lock_irqsave(&ha->vport_slock, flags);
@@ -2994,7 +2963,7 @@ qla2x00_remove_one(struct pci_dev *pdev)
BUG_ON(base_vha->list.next == &ha->vp_list);
/* This assumes first entry in ha->vp_list is always base vha */
vha = list_first_entry(&base_vha->list, scsi_qla_host_t, list);
- scsi_host_get(vha->host);
+ scsi_host = scsi_host_get(vha->host);
spin_unlock_irqrestore(&ha->vport_slock, flags);
mutex_unlock(&ha->vport_lock);
@@ -3005,27 +2974,12 @@ qla2x00_remove_one(struct pci_dev *pdev)
mutex_lock(&ha->vport_lock);
}
mutex_unlock(&ha->vport_lock);
+}
- if (IS_QLA8031(ha)) {
- ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
- "Clearing fcoe driver presence.\n");
- if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
- ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
- "Error while clearing DRV-Presence.\n");
- }
-
- qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
-
- qla2x00_dfs_remove(base_vha);
-
- qla84xx_put_chip(base_vha);
-
- /* Disable timer */
- if (base_vha->timer_active)
- qla2x00_stop_timer(base_vha);
-
- base_vha->flags.online = 0;
-
+/* Stops all deferred work threads */
+static void
+qla2x00_destroy_deferred_work(struct qla_hw_data *ha)
+{
/* Flush the work queue and remove it */
if (ha->wq) {
flush_workqueue(ha->wq);
@@ -3059,27 +3013,12 @@ qla2x00_remove_one(struct pci_dev *pdev)
ha->dpc_thread = NULL;
kthread_stop(t);
}
- qlt_remove_target(ha, base_vha);
-
- qla2x00_free_sysfs_attr(base_vha);
-
- fc_remove_host(base_vha->host);
-
- scsi_remove_host(base_vha->host);
-
- qla2x00_free_device(base_vha);
-
- scsi_host_put(base_vha->host);
+}
- if (IS_QLA8044(ha)) {
- qla8044_idc_lock(ha);
- qla8044_clear_drv_active(base_vha);
- qla8044_idc_unlock(ha);
- }
+static void
+qla2x00_unmap_iobases(struct qla_hw_data *ha)
+{
if (IS_QLA82XX(ha)) {
- qla82xx_idc_lock(ha);
- qla82xx_clear_drv_active(ha);
- qla82xx_idc_unlock(ha);
iounmap((device_reg_t __iomem *)ha->nx_pcibase);
if (!ql2xdbwr)
@@ -3097,6 +3036,84 @@ qla2x00_remove_one(struct pci_dev *pdev)
if (IS_QLA83XX(ha) && ha->msixbase)
iounmap(ha->msixbase);
}
+}
+
+static void
+qla2x00_clear_drv_active(scsi_qla_host_t *vha)
+{
+ struct qla_hw_data *ha = vha->hw;
+
+ if (IS_QLA8044(ha)) {
+ qla8044_idc_lock(ha);
+ qla8044_clear_drv_active(vha);
+ qla8044_idc_unlock(ha);
+ } else if (IS_QLA82XX(ha)) {
+ qla82xx_idc_lock(ha);
+ qla82xx_clear_drv_active(ha);
+ qla82xx_idc_unlock(ha);
+ }
+}
+
+static void
+qla2x00_remove_one(struct pci_dev *pdev)
+{
+ scsi_qla_host_t *base_vha;
+ struct qla_hw_data *ha;
+
+ /*
+ * If the PCI device is disabled that means that probe failed and any
+ * resources should be have cleaned up on probe exit.
+ */
+ if (!atomic_read(&pdev->enable_cnt))
+ return;
+
+ base_vha = pci_get_drvdata(pdev);
+ ha = base_vha->hw;
+
+ set_bit(UNLOADING, &base_vha->dpc_flags);
+
+ if (IS_QLAFX00(ha))
+ qlafx00_driver_shutdown(base_vha, 20);
+
+ qla2x00_delete_all_vps(ha, base_vha);
+
+ if (IS_QLA8031(ha)) {
+ ql_dbg(ql_dbg_p3p, base_vha, 0xb07e,
+ "Clearing fcoe driver presence.\n");
+ if (qla83xx_clear_drv_presence(base_vha) != QLA_SUCCESS)
+ ql_dbg(ql_dbg_p3p, base_vha, 0xb079,
+ "Error while clearing DRV-Presence.\n");
+ }
+
+ qla2x00_abort_all_cmds(base_vha, DID_NO_CONNECT << 16);
+
+ qla2x00_dfs_remove(base_vha);
+
+ qla84xx_put_chip(base_vha);
+
+ /* Disable timer */
+ if (base_vha->timer_active)
+ qla2x00_stop_timer(base_vha);
+
+ base_vha->flags.online = 0;
+
+ qla2x00_destroy_deferred_work(ha);
+
+ qlt_remove_target(ha, base_vha);
+
+ qla2x00_free_sysfs_attr(base_vha, true);
+
+ fc_remove_host(base_vha->host);
+
+ scsi_remove_host(base_vha->host);
+
+ qla2x00_free_device(base_vha);
+
+ scsi_host_put(base_vha->host);
+
+ qla2x00_clear_drv_active(base_vha);
+
+ qla2x00_unmap_iobases(ha);
pci_release_selected_regions(ha->pdev, ha->bars);
kfree(ha);
@@ -3118,9 +3135,8 @@ qla2x00_free_device(scsi_qla_host_t *vha)
if (vha->timer_active)
qla2x00_stop_timer(vha);
- qla2x00_stop_dpc_thread(vha);
-
qla25xx_delete_queues(vha);
+
if (ha->flags.fce_enabled)
qla2x00_disable_fce_trace(vha, NULL, NULL);