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NTB: Add split BAR output for debugfs stats

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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>
This commit is contained in:
Dave Jiang 2015-06-18 05:17:30 -04:00 committed by Jon Mason
parent fd839bf884
commit bf44fe4671
1 changed files with 68 additions and 15 deletions
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59
drivers/ntb/hw/intel/ntb_hw_intel.c
View file

@ -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);
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);
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);
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);
"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);
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);
"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);
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);
"SBAR45 -\t\t%#018llx\n",
u.v64);
}
}
off += scnprintf(buf + off, buf_size - off,