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authorDave Jiang <dave.jiang@intel.com>2015-06-18 05:17:30 -0400
committerJon Mason <jdmason@kudzu.us>2015-07-04 14:09:32 -0400
commitbf44fe4671f97ee17d178e08c2d3b346188d062b (patch)
tree5ae734e7eb21f60266555efffb55082013a9e694
parentfd839bf88485878ec602dbb3146fd44769eb3784 (diff)
NTB: Add split BAR output for debugfs stats
When split BAR is enabled, the driver needs to dump out the split BAR registers rather than the original 64bit BAR registers. Signed-off-by: Dave Jiang <dave.jiang@intel.com> Signed-off-by: Jon Mason <jdmason@kudzu.us>
-rw-r--r--drivers/ntb/hw/intel/ntb_hw_intel.c83
1 files changed, 68 insertions, 15 deletions
diff --git a/drivers/ntb/hw/intel/ntb_hw_intel.c b/drivers/ntb/hw/intel/ntb_hw_intel.c
index ba4dc0d7e1f3..87751cfd6f4f 100644
--- a/drivers/ntb/hw/intel/ntb_hw_intel.c
+++ b/drivers/ntb/hw/intel/ntb_hw_intel.c
@@ -632,17 +632,36 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf,
off += scnprintf(buf + off, buf_size - off,
"XLAT23 -\t\t%#018llx\n", u.v64);
- u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4));
- off += scnprintf(buf + off, buf_size - off,
- "XLAT45 -\t\t%#018llx\n", u.v64);
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT4 -\t\t\t%#06x\n", u.v32);
+
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 5));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_xlat, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "XLAT45 -\t\t%#018llx\n", u.v64);
+ }
u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 2));
off += scnprintf(buf + off, buf_size - off,
"LMT23 -\t\t\t%#018llx\n", u.v64);
- u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4));
- off += scnprintf(buf + off, buf_size - off,
- "LMT45 -\t\t\t%#018llx\n", u.v64);
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT4 -\t\t\t%#06x\n", u.v32);
+ u.v32 = ioread32(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 5));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + bar2_off(ndev->xlat_reg->bar2_limit, 4));
+ off += scnprintf(buf + off, buf_size - off,
+ "LMT45 -\t\t\t%#018llx\n", u.v64);
+ }
if (pdev_is_xeon(ndev->ntb.pdev)) {
if (ntb_topo_is_b2b(ndev->ntb.topo)) {
@@ -653,17 +672,41 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf,
off += scnprintf(buf + off, buf_size - off,
"B2B XLAT23 -\t\t%#018llx\n", u.v64);
- u.v64 = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
- off += scnprintf(buf + off, buf_size - off,
- "B2B XLAT45 -\t\t%#018llx\n", u.v64);
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_PBAR4XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT4 -\t\t%#06x\n",
+ u.v32);
+ u.v32 = ioread32(mmio + XEON_PBAR5XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT5 -\t\t%#06x\n",
+ u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_PBAR45XLAT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B XLAT45 -\t\t%#018llx\n",
+ u.v64);
+ }
u.v64 = ioread64(mmio + XEON_PBAR23LMT_OFFSET);
off += scnprintf(buf + off, buf_size - off,
"B2B LMT23 -\t\t%#018llx\n", u.v64);
- u.v64 = ioread64(mmio + XEON_PBAR45LMT_OFFSET);
- off += scnprintf(buf + off, buf_size - off,
- "B2B LMT45 -\t\t%#018llx\n", u.v64);
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_PBAR4LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT4 -\t\t%#06x\n",
+ u.v32);
+ u.v32 = ioread32(mmio + XEON_PBAR5LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT5 -\t\t%#06x\n",
+ u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_PBAR45LMT_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "B2B LMT45 -\t\t%#018llx\n",
+ u.v64);
+ }
off += scnprintf(buf + off, buf_size - off,
"\nNTB Secondary BAR:\n");
@@ -676,9 +719,19 @@ static ssize_t ndev_debugfs_read(struct file *filp, char __user *ubuf,
off += scnprintf(buf + off, buf_size - off,
"SBAR23 -\t\t%#018llx\n", u.v64);
- u.v64 = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
- off += scnprintf(buf + off, buf_size - off,
- "SBAR45 -\t\t%#018llx\n", u.v64);
+ if (ndev->bar4_split) {
+ u.v32 = ioread32(mmio + XEON_SBAR4BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR4 -\t\t\t%#06x\n", u.v32);
+ u.v32 = ioread32(mmio + XEON_SBAR5BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR5 -\t\t\t%#06x\n", u.v32);
+ } else {
+ u.v64 = ioread64(mmio + XEON_SBAR45BASE_OFFSET);
+ off += scnprintf(buf + off, buf_size - off,
+ "SBAR45 -\t\t%#018llx\n",
+ u.v64);
+ }
}
off += scnprintf(buf + off, buf_size - off,

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