Merge master.kernel.org:/pub/scm/linux/kernel/git/davej/cpufreq
[pandora-kernel.git] / drivers / scsi / ipr.c
index 5890e5f..01080b3 100644 (file)
@@ -54,7 +54,6 @@
  *
  */
 
-#include <linux/config.h>
 #include <linux/fs.h>
 #include <linux/init.h>
 #include <linux/types.h>
@@ -79,7 +78,6 @@
 #include <scsi/scsi_tcq.h>
 #include <scsi/scsi_eh.h>
 #include <scsi/scsi_cmnd.h>
-#include <scsi/scsi_request.h>
 #include "ipr.h"
 
 /*
@@ -164,29 +162,6 @@ MODULE_PARM_DESC(auto_create, "Auto-create single device RAID 0 arrays when init
 MODULE_LICENSE("GPL");
 MODULE_VERSION(IPR_DRIVER_VERSION);
 
-static const char *ipr_gpdd_dev_end_states[] = {
-       "Command complete",
-       "Terminated by host",
-       "Terminated by device reset",
-       "Terminated by bus reset",
-       "Unknown",
-       "Command not started"
-};
-
-static const char *ipr_gpdd_dev_bus_phases[] = {
-       "Bus free",
-       "Arbitration",
-       "Selection",
-       "Message out",
-       "Command",
-       "Message in",
-       "Data out",
-       "Data in",
-       "Status",
-       "Reselection",
-       "Unknown"
-};
-
 /*  A constant array of IOASCs/URCs/Error Messages */
 static const
 struct ipr_error_table_t ipr_error_table[] = {
@@ -869,8 +844,8 @@ static void ipr_handle_config_change(struct ipr_ioa_cfg *ioa_cfg,
 
        if (hostrcb->hcam.notify_type == IPR_HOST_RCB_NOTIF_TYPE_REM_ENTRY) {
                if (res->sdev) {
-                       res->sdev->hostdata = NULL;
                        res->del_from_ml = 1;
+                       res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
                        if (ioa_cfg->allow_ml_add_del)
                                schedule_work(&ioa_cfg->work_q);
                } else
@@ -1356,8 +1331,8 @@ static void ipr_handle_log_data(struct ipr_ioa_cfg *ioa_cfg,
                return;
 
        if (ipr_is_device(&hostrcb->hcam.u.error.failing_dev_res_addr)) {
-               ipr_res_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr,
-                           "%s\n", ipr_error_table[error_index].error);
+               ipr_ra_err(ioa_cfg, hostrcb->hcam.u.error.failing_dev_res_addr,
+                          "%s\n", ipr_error_table[error_index].error);
        } else {
                dev_err(&ioa_cfg->pdev->dev, "%s\n",
                        ipr_error_table[error_index].error);
@@ -2107,7 +2082,6 @@ restart:
                                did_work = 1;
                                sdev = res->sdev;
                                if (!scsi_device_get(sdev)) {
-                                       res->sdev = NULL;
                                        list_move_tail(&res->queue, &ioa_cfg->free_res_q);
                                        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
                                        scsi_remove_device(sdev);
@@ -2124,6 +2098,7 @@ restart:
                        bus = res->cfgte.res_addr.bus;
                        target = res->cfgte.res_addr.target;
                        lun = res->cfgte.res_addr.lun;
+                       res->add_to_ml = 0;
                        spin_unlock_irqrestore(ioa_cfg->host->host_lock, lock_flags);
                        scsi_add_device(ioa_cfg->host, bus, target, lun);
                        spin_lock_irqsave(ioa_cfg->host->host_lock, lock_flags);
@@ -3214,7 +3189,7 @@ static int ipr_slave_configure(struct scsi_device *sdev)
                        sdev->timeout = IPR_VSET_RW_TIMEOUT;
                        blk_queue_max_sectors(sdev->request_queue, IPR_VSET_MAX_SECTORS);
                }
-               if (IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data))
+               if (ipr_is_vset_device(res) || ipr_is_scsi_disk(res))
                        sdev->allow_restart = 1;
                scsi_adjust_queue_depth(sdev, 0, sdev->host->cmd_per_lun);
        }
@@ -3303,6 +3278,44 @@ static int ipr_eh_host_reset(struct scsi_cmnd * cmd)
        return rc;
 }
 
+/**
+ * ipr_device_reset - Reset the device
+ * @ioa_cfg:   ioa config struct
+ * @res:               resource entry struct
+ *
+ * This function issues a device reset to the affected device.
+ * If the device is a SCSI device, a LUN reset will be sent
+ * to the device first. If that does not work, a target reset
+ * will be sent.
+ *
+ * Return value:
+ *     0 on success / non-zero on failure
+ **/
+static int ipr_device_reset(struct ipr_ioa_cfg *ioa_cfg,
+                           struct ipr_resource_entry *res)
+{
+       struct ipr_cmnd *ipr_cmd;
+       struct ipr_ioarcb *ioarcb;
+       struct ipr_cmd_pkt *cmd_pkt;
+       u32 ioasc;
+
+       ENTER;
+       ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
+       ioarcb = &ipr_cmd->ioarcb;
+       cmd_pkt = &ioarcb->cmd_pkt;
+
+       ioarcb->res_handle = res->cfgte.res_handle;
+       cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
+       cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
+
+       ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
+       ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
+       list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
+
+       LEAVE;
+       return (IPR_IOASC_SENSE_KEY(ioasc) ? -EIO : 0);
+}
+
 /**
  * ipr_eh_dev_reset - Reset the device
  * @scsi_cmd:  scsi command struct
@@ -3319,8 +3332,7 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
        struct ipr_cmnd *ipr_cmd;
        struct ipr_ioa_cfg *ioa_cfg;
        struct ipr_resource_entry *res;
-       struct ipr_cmd_pkt *cmd_pkt;
-       u32 ioasc;
+       int rc;
 
        ENTER;
        ioa_cfg = (struct ipr_ioa_cfg *) scsi_cmd->device->host->hostdata;
@@ -3347,25 +3359,12 @@ static int __ipr_eh_dev_reset(struct scsi_cmnd * scsi_cmd)
        }
 
        res->resetting_device = 1;
-
-       ipr_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
-
-       ipr_cmd->ioarcb.res_handle = res->cfgte.res_handle;
-       cmd_pkt = &ipr_cmd->ioarcb.cmd_pkt;
-       cmd_pkt->request_type = IPR_RQTYPE_IOACMD;
-       cmd_pkt->cdb[0] = IPR_RESET_DEVICE;
-
-       ipr_sdev_err(scsi_cmd->device, "Resetting device\n");
-       ipr_send_blocking_cmd(ipr_cmd, ipr_timeout, IPR_DEVICE_RESET_TIMEOUT);
-
-       ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
-
+       scmd_printk(KERN_ERR, scsi_cmd, "Resetting device\n");
+       rc = ipr_device_reset(ioa_cfg, res);
        res->resetting_device = 0;
 
-       list_add_tail(&ipr_cmd->queue, &ioa_cfg->free_q);
-
        LEAVE;
-       return (IPR_IOASC_SENSE_KEY(ioasc) ? FAILED : SUCCESS);
+       return (rc ? FAILED : SUCCESS);
 }
 
 static int ipr_eh_dev_reset(struct scsi_cmnd * cmd)
@@ -3440,7 +3439,7 @@ static void ipr_abort_timeout(struct ipr_cmnd *ipr_cmd)
                return;
        }
 
-       ipr_sdev_err(ipr_cmd->u.sdev, "Abort timed out. Resetting bus\n");
+       sdev_printk(KERN_ERR, ipr_cmd->u.sdev, "Abort timed out. Resetting bus.\n");
        reset_cmd = ipr_get_free_ipr_cmnd(ioa_cfg);
        ipr_cmd->sibling = reset_cmd;
        reset_cmd->sibling = ipr_cmd;
@@ -3504,7 +3503,8 @@ static int ipr_cancel_op(struct scsi_cmnd * scsi_cmd)
        cmd_pkt->cdb[0] = IPR_CANCEL_ALL_REQUESTS;
        ipr_cmd->u.sdev = scsi_cmd->device;
 
-       ipr_sdev_err(scsi_cmd->device, "Aborting command: %02X\n", scsi_cmd->cmnd[0]);
+       scmd_printk(KERN_ERR, scsi_cmd, "Aborting command: %02X\n",
+                   scsi_cmd->cmnd[0]);
        ipr_send_blocking_cmd(ipr_cmd, ipr_abort_timeout, IPR_CANCEL_ALL_TIMEOUT);
        ioasc = be32_to_cpu(ipr_cmd->ioasa.ioasc);
 
@@ -3815,8 +3815,8 @@ static void ipr_erp_done(struct ipr_cmnd *ipr_cmd)
 
        if (IPR_IOASC_SENSE_KEY(ioasc) > 0) {
                scsi_cmd->result |= (DID_ERROR << 16);
-               ipr_sdev_err(scsi_cmd->device,
-                            "Request Sense failed with IOASC: 0x%08X\n", ioasc);
+               scmd_printk(KERN_ERR, scsi_cmd,
+                           "Request Sense failed with IOASC: 0x%08X\n", ioasc);
        } else {
                memcpy(scsi_cmd->sense_buffer, ipr_cmd->sense_buffer,
                       SCSI_SENSE_BUFFERSIZE);
@@ -3938,6 +3938,7 @@ static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
  * ipr_dump_ioasa - Dump contents of IOASA
  * @ioa_cfg:   ioa config struct
  * @ipr_cmd:   ipr command struct
+ * @res:               resource entry struct
  *
  * This function is invoked by the interrupt handler when ops
  * fail. It will log the IOASA if appropriate. Only called
@@ -3947,7 +3948,7 @@ static void ipr_erp_cancel_all(struct ipr_cmnd *ipr_cmd)
  *     none
  **/
 static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
-                          struct ipr_cmnd *ipr_cmd)
+                          struct ipr_cmnd *ipr_cmd, struct ipr_resource_entry *res)
 {
        int i;
        u16 data_len;
@@ -3975,16 +3976,7 @@ static void ipr_dump_ioasa(struct ipr_ioa_cfg *ioa_cfg,
                        return;
        }
 
-       ipr_sdev_err(ipr_cmd->scsi_cmd->device, "%s\n",
-                    ipr_error_table[error_index].error);
-
-       if ((ioasa->u.gpdd.end_state <= ARRAY_SIZE(ipr_gpdd_dev_end_states)) &&
-           (ioasa->u.gpdd.bus_phase <=  ARRAY_SIZE(ipr_gpdd_dev_bus_phases))) {
-               ipr_sdev_err(ipr_cmd->scsi_cmd->device,
-                            "Device End state: %s Phase: %s\n",
-                            ipr_gpdd_dev_end_states[ioasa->u.gpdd.end_state],
-                            ipr_gpdd_dev_bus_phases[ioasa->u.gpdd.bus_phase]);
-       }
+       ipr_res_err(ioa_cfg, res, "%s\n", ipr_error_table[error_index].error);
 
        if (sizeof(struct ipr_ioasa) < be16_to_cpu(ioasa->ret_stat_len))
                data_len = sizeof(struct ipr_ioasa);
@@ -4141,7 +4133,7 @@ static void ipr_erp_start(struct ipr_ioa_cfg *ioa_cfg,
        }
 
        if (ipr_is_gscsi(res))
-               ipr_dump_ioasa(ioa_cfg, ipr_cmd);
+               ipr_dump_ioasa(ioa_cfg, ipr_cmd, res);
        else
                ipr_gen_sense(ipr_cmd);
 
@@ -4540,7 +4532,7 @@ static int ipr_set_supported_devs(struct ipr_cmnd *ipr_cmd)
        ipr_cmd->job_step = ipr_ioa_reset_done;
 
        list_for_each_entry_continue(res, &ioa_cfg->used_res_q, queue) {
-               if (!IPR_IS_DASD_DEVICE(res->cfgte.std_inq_data))
+               if (!ipr_is_scsi_disk(res))
                        continue;
 
                ipr_cmd->u.res = res;
@@ -4980,7 +4972,7 @@ static int ipr_init_res_table(struct ipr_cmnd *ipr_cmd)
        list_for_each_entry_safe(res, temp, &old_res, queue) {
                if (res->sdev) {
                        res->del_from_ml = 1;
-                       res->sdev->hostdata = NULL;
+                       res->cfgte.res_handle = IPR_INVALID_RES_HANDLE;
                        list_move_tail(&res->queue, &ioa_cfg->used_res_q);
                } else {
                        list_move_tail(&res->queue, &ioa_cfg->free_res_q);
@@ -6436,7 +6428,7 @@ static int __devinit ipr_probe_ioa(struct pci_dev *pdev,
                ioa_cfg->needs_hard_reset = 1;
 
        ipr_mask_and_clear_interrupts(ioa_cfg, ~IPR_PCII_IOA_TRANS_TO_OPER);
-       rc = request_irq(pdev->irq, ipr_isr, SA_SHIRQ, IPR_NAME, ioa_cfg);
+       rc = request_irq(pdev->irq, ipr_isr, IRQF_SHARED, IPR_NAME, ioa_cfg);
 
        if (rc) {
                dev_err(&pdev->dev, "Couldn't register IRQ %d! rc=%d\n",