IB/ipath: Indicate a couple of chip bugs to userspace

A couple of 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@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

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)
 

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;

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;
 }