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| author | Dave Jiang <dave.jiang@intel.com> | 2015-07-13 08:07:09 -0400 |
|---|---|---|
| committer | Jon Mason <jdmason@kudzu.us> | 2015-08-09 16:32:21 -0400 |
| commit | c8650fd03d320e9c39f44435a583933cacea5259 (patch) | |
| tree | a1ccbc94df77a7f0d9cfd759a6fcbcd277f09eaa /drivers/ntb | |
| parent | da2e5ae56164b86823c1bff5b4d28430ca4a7108 (diff) | |
| download | linux-rpi-c8650fd03d320e9c39f44435a583933cacea5259.tar.gz linux-rpi-c8650fd03d320e9c39f44435a583933cacea5259.tar.bz2 linux-rpi-c8650fd03d320e9c39f44435a583933cacea5259.zip | |
NTB: Fix transport stats for multiple devices
Currently the debugfs does not have files for all NTB transport queue
pairs. When there are multiple NTBs present in a system, the QP names
of the last transport clobber the names of previously added transport
QPs. Only the last added QPs can be observed via debugfs.
Create a directory per NTB transport to associate the QPs with that
transport. Name the directory the same as the PCI device.
Signed-off-by: Dave Jiang <dave.jiang@intel.com>
Signed-off-by: Jon Mason <jdmason@kudzu.us>
Diffstat (limited to 'drivers/ntb')
| -rw-r--r-- | drivers/ntb/ntb_transport.c | 12 |
1 files changed, 10 insertions, 2 deletions
diff --git a/drivers/ntb/ntb_transport.c b/drivers/ntb/ntb_transport.c index 98e58c765f2e..25e973ff64cf 100644 --- a/drivers/ntb/ntb_transport.c +++ b/drivers/ntb/ntb_transport.c @@ -212,6 +212,8 @@ struct ntb_transport_ctx { bool link_is_up; struct delayed_work link_work; struct work_struct link_cleanup; + + struct dentry *debugfs_node_dir; }; enum { @@ -945,12 +947,12 @@ static int ntb_transport_init_queue(struct ntb_transport_ctx *nt, qp->tx_max_frame = min(transport_mtu, tx_size / 2); qp->tx_max_entry = tx_size / qp->tx_max_frame; - if (nt_debugfs_dir) { + if (nt->debugfs_node_dir) { char debugfs_name[4]; snprintf(debugfs_name, 4, "qp%d", qp_num); qp->debugfs_dir = debugfs_create_dir(debugfs_name, - nt_debugfs_dir); + nt->debugfs_node_dir); qp->debugfs_stats = debugfs_create_file("stats", S_IRUSR, qp->debugfs_dir, qp, @@ -1053,6 +1055,12 @@ static int ntb_transport_probe(struct ntb_client *self, struct ntb_dev *ndev) goto err2; } + if (nt_debugfs_dir) { + nt->debugfs_node_dir = + debugfs_create_dir(pci_name(ndev->pdev), + nt_debugfs_dir); + } + for (i = 0; i < qp_count; i++) { rc = ntb_transport_init_queue(nt, i); if (rc) |