From: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx>
Signed-off-by: Vikas Chaudhary <vikas.chaudhary@xxxxxxxxxx>
---
drivers/scsi/qla4xxx/ql4_def.h | 2 +
drivers/scsi/qla4xxx/ql4_fw.h | 3 +
drivers/scsi/qla4xxx/ql4_isr.c | 2 +
drivers/scsi/qla4xxx/ql4_os.c | 107 ++++++++++++++++++++++++++++++++++++++++
4 files changed, 114 insertions(+), 0 deletions(-)
diff --git a/drivers/scsi/qla4xxx/ql4_def.h b/drivers/scsi/qla4xxx/ql4_def.h
index c3190eb..d2f7cd6 100644
--- a/drivers/scsi/qla4xxx/ql4_def.h
+++ b/drivers/scsi/qla4xxx/ql4_def.h
@@ -172,6 +172,7 @@
#define RELOGIN_TOV 18
#define ISNS_DEREG_TOV 5
#define HBA_ONLINE_TOV 30
+#define DISABLE_ACB_TOV 30
#define MAX_RESET_HA_RETRIES 2
@@ -616,6 +617,7 @@ struct scsi_qla_host {
uint16_t phy_port_cnt;
uint16_t iscsi_pci_func_cnt;
uint8_t model_name[16];
+ struct completion disable_acb_comp;
};
struct ql4_task_data {
diff --git a/drivers/scsi/qla4xxx/ql4_fw.h b/drivers/scsi/qla4xxx/ql4_fw.h
index 581ff7e..0e24c7a 100644
--- a/drivers/scsi/qla4xxx/ql4_fw.h
+++ b/drivers/scsi/qla4xxx/ql4_fw.h
@@ -605,6 +605,9 @@ struct init_fw_ctrl_blk {
/* struct addr_ctrl_blk sec;*/
};
+#define PRIMARI_ACB 0
+#define SECONDARY_ACB 1
+
struct addr_ctrl_blk_def {
uint8_t reserved1[1]; /* 00 */
uint8_t control; /* 01 */
diff --git a/drivers/scsi/qla4xxx/ql4_isr.c b/drivers/scsi/qla4xxx/ql4_isr.c
index ee1104a..827e930 100644
--- a/drivers/scsi/qla4xxx/ql4_isr.c
+++ b/drivers/scsi/qla4xxx/ql4_isr.c
@@ -619,6 +619,8 @@ static void qla4xxx_isr_decode_mailbox(struct scsi_qla_host * ha,
else if ((mbox_sts[3] == ACB_STATE_ACQUIRING) &&
(mbox_sts[2] == ACB_STATE_VALID))
set_bit(DPC_RESET_HA, &ha->dpc_flags);
+ else if ((mbox_sts[3] == ACB_STATE_UNCONFIGURED))
+ complete(&ha->disable_acb_comp);
break;
case MBOX_ASTS_MAC_ADDRESS_CHANGED:
diff --git a/drivers/scsi/qla4xxx/ql4_os.c b/drivers/scsi/qla4xxx/ql4_os.c
index 489d7cd..456cd6f 100644
--- a/drivers/scsi/qla4xxx/ql4_os.c
+++ b/drivers/scsi/qla4xxx/ql4_os.c
@@ -121,6 +121,7 @@ static int qla4xxx_slave_alloc(struct scsi_device *device);
static int qla4xxx_slave_configure(struct scsi_device *device);
static void qla4xxx_slave_destroy(struct scsi_device *sdev);
static mode_t ql4_attr_is_visible(int param_type, int param);
+static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type);
static struct qla4_8xxx_legacy_intr_set legacy_intr[] =
QLA82XX_LEGACY_INTR_CONFIG;
@@ -148,6 +149,7 @@ static struct scsi_host_template qla4xxx_driver_template = {
.max_sectors = 0xFFFF,
.shost_attrs = qla4xxx_host_attrs,
+ .host_reset = qla4xxx_host_reset,
.vendor_id = SCSI_NL_VID_TYPE_PCI | PCI_VENDOR_ID_QLOGIC,
};
@@ -3133,6 +3135,7 @@ static int __devinit qla4xxx_probe_adapter(struct pci_dev *pdev,
mutex_init(&ha->mbox_sem);
init_completion(&ha->mbx_intr_comp);
+ init_completion(&ha->disable_acb_comp);
spin_lock_init(&ha->hardware_lock);
@@ -3761,6 +3764,110 @@ static int qla4xxx_eh_host_reset(struct scsi_cmnd *cmd)
return return_status;
}
+static int qla4xxx_context_reset(struct scsi_qla_host *ha)
+{
+ uint32_t mbox_cmd[MBOX_REG_COUNT];
+ uint32_t mbox_sts[MBOX_REG_COUNT];
+ struct addr_ctrl_blk_def *acb = NULL;
+ uint32_t acb_len = sizeof(struct addr_ctrl_blk_def);
+ int rval = QLA_SUCCESS;
+ dma_addr_t acb_dma;
+
+ acb = dma_alloc_coherent(&ha->pdev->dev,
+ sizeof(struct addr_ctrl_blk_def),
+ &acb_dma, GFP_KERNEL);
+ if (!acb) {
+ ql4_printk(KERN_ERR, ha, "%s: Unable to alloc acb\n",
+ __func__);
+ rval = -ENOMEM;
+ goto exit_port_reset;
+ }
+
+ memset(acb, 0, acb_len);
+
+ rval = qla4xxx_get_acb(ha, acb_dma, PRIMARI_ACB, acb_len);
+ if (rval != QLA_SUCCESS) {
+ rval = -EIO;
+ goto exit_free_acb;
+ }
+
+ rval = qla4xxx_disable_acb(ha);
+ if (rval != QLA_SUCCESS) {
+ rval = -EIO;
+ goto exit_free_acb;
+ }
+
+ wait_for_completion_timeout(&ha->disable_acb_comp,
+ DISABLE_ACB_TOV * HZ);
+
+ rval = qla4xxx_set_acb(ha, &mbox_cmd[0], &mbox_sts[0], acb_dma);
+ if (rval != QLA_SUCCESS) {
+ rval = -EIO;
+ goto exit_free_acb;
+ }
+
+exit_free_acb:
+ dma_free_coherent(&ha->pdev->dev, sizeof(struct addr_ctrl_blk_def),
+ acb, acb_dma);
+exit_port_reset:
+ DEBUG2(ql4_printk(KERN_INFO, ha, "%s %s\n", __func__,
+ rval == QLA_SUCCESS ? "SUCCEEDED" : "FAILED"));
+ return rval;
+}
+
+static int qla4xxx_host_reset(struct Scsi_Host *shost, int reset_type)
+{
+ struct scsi_qla_host *ha = to_qla_host(shost);
+ int rval = QLA_SUCCESS;
+
+ if (ql4xdontresethba) {
+ DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Don't Reset HBA\n",
+ __func__));
+ rval = -EPERM;
+ goto exit_host_reset;
+ }
+
+ rval = qla4xxx_wait_for_hba_online(ha);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2(ql4_printk(KERN_INFO, ha, "%s: Unable to reset host "
+ "adapter\n", __func__));
+ rval = -EIO;
+ goto exit_host_reset;
+ }
+
+ if (test_bit(DPC_RESET_HA, &ha->dpc_flags))
+ goto recover_adapter;
+
+ switch (reset_type) {
+ case SCSI_ADAPTER_RESET:
+ set_bit(DPC_RESET_HA, &ha->dpc_flags);
+ break;
+ case SCSI_FIRMWARE_RESET:
+ if (!test_bit(DPC_RESET_HA, &ha->dpc_flags)) {
+ if (is_qla8022(ha))
+ /* set firmware context reset */
+ set_bit(DPC_RESET_HA_FW_CONTEXT,
+ &ha->dpc_flags);
+ else {
+ rval = qla4xxx_context_reset(ha);
+ goto exit_host_reset;
+ }
+ }
+ break;
+ }
+
+recover_adapter:
+ rval = qla4xxx_recover_adapter(ha);
+ if (rval != QLA_SUCCESS) {
+ DEBUG2(ql4_printk(KERN_INFO, ha, "%s: recover adapter fail\n",
+ __func__));
+ rval = -EIO;
+ }
+
+exit_host_reset:
+ return rval;
+}
+
/* PCI AER driver recovers from all correctable errors w/o
* driver intervention. For uncorrectable errors PCI AER
* driver calls the following device driver's callbacks
--
1.7.6
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