[SCSI] ipr: Use PCI-E reset API for new ipr adapter

Use a newly added PCI API to issue a PCI Fundamental reset
(warm reset) to a new ipr PCI-E adapter. Typically, the
ipr adapter uses the start BIST bit in config space to reset
an adapter. Issuing start BIST on this particular adapter
results in the PCI-E logic on the card losing sync, which
causes PCI-E errors, making the card unusable. The only reset
mechanism that exists on this hardware that does not have this
problem is PCI Fundamental reset (warm reset).

Signed-off-by: Brian King <brking@linux.vnet.ibm.com>
Signed-off-by: James Bottomley <James.Bottomley@SteelEye.com>

1 files changed, 7 insertions, 1 deletions

diff --git a/drivers/scsi/ipr.h b/drivers/scsi/ipr.h
index daa96ee19d4f..d93156671e93 100644
--- a/drivers/scsi/ipr.h
+++ b/drivers/scsi/ipr.h
@@ -37,7 +37,7 @@
 /*
  * Literals
  */
-#define IPR_DRIVER_VERSION "2.4.0"
+#define IPR_DRIVER_VERSION "2.4.1"
 #define IPR_DRIVER_DATE "(April 24, 2007)"
 
 /*
@@ -112,6 +112,7 @@
 
 /* Driver data flags */
 #define IPR_USE_LONG_TRANSOP_TIMEOUT            0x00000001
+#define IPR_USE_PCI_WARM_RESET                  0x00000002
 
 #define IPR_DEFAULT_MAX_ERROR_DUMP                      984
 #define IPR_NUM_LOG_HCAMS                               2
@@ -193,6 +194,7 @@
 #define IPR_WAIT_FOR_RESET_TIMEOUT              (2 * HZ)
 #define IPR_CHECK_FOR_RESET_TIMEOUT             (HZ / 10)
 #define IPR_WAIT_FOR_BIST_TIMEOUT               (2 * HZ)
+#define IPR_PCI_RESET_TIMEOUT                   (HZ / 2)
 #define IPR_DUMP_TIMEOUT                        (15 * HZ)
 
 /*
@@ -1091,6 +1093,9 @@ struct ipr_ioa_cfg {
         u8 allow_ml_add_del:1;
         u8 needs_hard_reset:1;
         u8 dual_raid:1;
+        u8 needs_warm_reset:1;
+
+        u8 revid;
 
         enum ipr_cache_state cache_state;
         u16 type; /* CCIN of the card */
@@ -1184,6 +1189,7 @@ struct ipr_ioa_cfg {
         struct pci_pool *ipr_cmd_pool;
 
         struct ipr_cmnd *reset_cmd;
+        int (*reset) (struct ipr_cmnd *);
 
         struct ata_host ata_host;
         char ipr_cmd_label[8];