IB/ipath: Provide I/O bus speeds for diagnostic purposes

Modern I/O buses like PCIe and HT can be configured for multiple speeds
and widths.  When an ipath HCA seems to have lower than expected
performance, it is very useful to be able to display what the driver
thinks the bus speed is.

Signed-off-by: Dave Olson <dave.olson@qlogic.com>
Signed-off-by: Roland Dreier <rolandd@cisco.com>

1 files changed, 5 insertions, 4 deletions

diff --git a/drivers/infiniband/hw/ipath/ipath_kernel.h b/drivers/infiniband/hw/ipath/ipath_kernel.h
index 3d4a254ffca0..59dc89516243 100644
--- a/drivers/infiniband/hw/ipath/ipath_kernel.h
+++ b/drivers/infiniband/hw/ipath/ipath_kernel.h
@@ -546,10 +546,10 @@ struct ipath_devdata {
         u32 ipath_init_ibmaxlen;
         /* size of each rcvegrbuffer */
         u32 ipath_rcvegrbufsize;
-        /* width (2,4,8,16,32) from HT config reg */
-        u32 ipath_htwidth;
-        /* HT speed (200,400,800,1000) from HT config */
-        u32 ipath_htspeed;
+        /* localbus width (1, 2,4,8,16,32) from config space  */
+        u32 ipath_lbus_width;
+        /* localbus speed (HT: 200,400,800,1000; PCIe 2500) */
+        u32 ipath_lbus_speed;
         /*
          * number of sequential ibcstatus change for polling active/quiet
          * (i.e., link not coming up).
@@ -574,6 +574,7 @@ struct ipath_devdata {
         u8 ipath_serial[16];
         /* human readable board version */
         u8 ipath_boardversion[80];
+        u8 ipath_lbus_info[32]; /* human readable localbus info */
         /* chip major rev, from ipath_revision */
         u8 ipath_majrev;
         /* chip minor rev, from ipath_revision */