From bf44fe4671f97ee17d178e08c2d3b346188d062b Mon Sep 17 00:00:00 2001 From: Dave Jiang Date: Thu, 18 Jun 2015 05:17:30 -0400 Subject: 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 Signed-off-by: Jon Mason --- drivers/ntb/hw/intel/ntb_hw_intel.c | 83 ++++++++++++++++++++++++++++++------- 1 file changed, 68 insertions(+), 15 deletions(-) (limited to 'drivers/ntb/hw') 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, -- cgit v1.2.3