[ofa-general] [PATCH 17/23] IB/ipath - indicate to userspace a couple chip bugs

[Arthur Jones]

A couple chip bugs in the iba6110 and in the iba6120
are not in more recent chips.  This first bug swaps
two of the pioavail register locations.  In the second
bug, the chip can sometimes forget to dma the pio avail
register to memory.  We indicate the presence of these
bugs with runtime flags and we indicate the presence of
the flags by bumping the SWMINOR.

Signed-off-by: Arthur Jones <arthur.jones at qlogic.com>
---

 drivers/infiniband/hw/ipath/ipath_common.h  |    4 +++-
 drivers/infiniband/hw/ipath/ipath_iba6110.c |    3 ++-
 drivers/infiniband/hw/ipath/ipath_iba6120.c |    3 ++-
 3 files changed, 7 insertions(+), 3 deletions(-)

diff --git a/drivers/infiniband/hw/ipath/ipath_common.h b/drivers/infiniband/hw/ipath/ipath_common.h
index 6ad822c..851df8a 100644
--- a/drivers/infiniband/hw/ipath/ipath_common.h
+++ b/drivers/infiniband/hw/ipath/ipath_common.h
@@ -189,6 +189,8 @@ typedef enum _ipath_ureg {
 #define IPATH_RUNTIME_RCVHDR_COPY	0x8
 #define IPATH_RUNTIME_MASTER	0x10
 /* 0x20 and 0x40 are no longer used, but are reserved for ABI compatibility */
+#define IPATH_RUNTIME_FORCE_PIOAVAIL 0x400
+#define IPATH_RUNTIME_PIO_REGSWAPPED 0x800
 
 /*
  * This structure is returned by ipath_userinit() immediately after
@@ -350,7 +352,7 @@ struct ipath_base_info {
  * may not be implemented; the user code must deal with this if it
  * cares, or it must abort after initialization reports the difference.
  */
-#define IPATH_USER_SWMINOR 5
+#define IPATH_USER_SWMINOR 6
 
 #define IPATH_USER_SWVERSION ((IPATH_USER_SWMAJOR<<16) | IPATH_USER_SWMINOR)
 
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6110.c b/drivers/infiniband/hw/ipath/ipath_iba6110.c
index d4940be..df42a1e 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6110.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6110.c
@@ -1599,7 +1599,8 @@ static int ipath_ht_get_base_info(struct ipath_portdata *pd, void *kbase)
 {
 	struct ipath_base_info *kinfo = kbase;
 
-	kinfo->spi_runtime_flags |= IPATH_RUNTIME_HT;
+	kinfo->spi_runtime_flags |= IPATH_RUNTIME_HT |
+		IPATH_RUNTIME_PIO_REGSWAPPED;
 
 	if (pd->port_dd->ipath_minrev < 4)
 		kinfo->spi_runtime_flags |= IPATH_RUNTIME_RCVHDR_COPY;
diff --git a/drivers/infiniband/hw/ipath/ipath_iba6120.c b/drivers/infiniband/hw/ipath/ipath_iba6120.c
index d43f0b3..0103d6f 100644
--- a/drivers/infiniband/hw/ipath/ipath_iba6120.c
+++ b/drivers/infiniband/hw/ipath/ipath_iba6120.c
@@ -1348,7 +1348,8 @@ static int ipath_pe_get_base_info(struct ipath_portdata *pd, void *kbase)
 	dd = pd->port_dd;
 
 done:
-	kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE;
+	kinfo->spi_runtime_flags |= IPATH_RUNTIME_PCIE |
+		IPATH_RUNTIME_FORCE_PIOAVAIL | IPATH_RUNTIME_PIO_REGSWAPPED;
 	return 0;
 }