diff options
| author | Shyam Prasad N <sprasad@microsoft.com> | 2022-12-26 12:24:56 +0100 |
|---|---|---|
| committer | Steve French <stfrench@microsoft.com> | 2023-11-09 17:25:17 +0100 |
| commit | a6d8fb54a515f0546ffdb7870102b1238917e567 (patch) | |
| tree | 7e3d5020ea3e68e21d8373b687205a2815c8a102 /fs/smb/client/cifs_debug.c | |
| parent | cifs: handle cases where a channel is closed (diff) | |
| download | linux-a6d8fb54a515f0546ffdb7870102b1238917e567.tar.xz linux-a6d8fb54a515f0546ffdb7870102b1238917e567.zip | |
cifs: distribute channels across interfaces based on speed
Today, if the server interfaces RSS capable, we simply
choose the fastest interface to setup a channel. This is not
a scalable approach, and does not make a lot of attempt to
distribute the connections.
This change does a weighted distribution of channels across
all the available server interfaces, where the weight is
a function of the advertised interface speed.
Also make sure that we don't mix rdma and non-rdma for channels.
Signed-off-by: Shyam Prasad N <sprasad@microsoft.com>
Signed-off-by: Steve French <stfrench@microsoft.com>
Diffstat (limited to 'fs/smb/client/cifs_debug.c')
| -rw-r--r-- | fs/smb/client/cifs_debug.c | 16 |
1 files changed, 16 insertions, 0 deletions
diff --git a/fs/smb/client/cifs_debug.c b/fs/smb/client/cifs_debug.c index 772d4226957f..5596c9f30ccb 100644 --- a/fs/smb/client/cifs_debug.c +++ b/fs/smb/client/cifs_debug.c @@ -284,6 +284,8 @@ static int cifs_debug_data_proc_show(struct seq_file *m, void *v) struct cifs_ses *ses; struct cifs_tcon *tcon; struct cifs_server_iface *iface; + size_t iface_weight = 0, iface_min_speed = 0; + struct cifs_server_iface *last_iface = NULL; int c, i, j; seq_puts(m, @@ -549,11 +551,25 @@ skip_rdma: "\tLast updated: %lu seconds ago", ses->iface_count, (jiffies - ses->iface_last_update) / HZ); + + last_iface = list_last_entry(&ses->iface_list, + struct cifs_server_iface, + iface_head); + iface_min_speed = last_iface->speed; + j = 0; list_for_each_entry(iface, &ses->iface_list, iface_head) { seq_printf(m, "\n\t%d)", ++j); cifs_dump_iface(m, iface); + + iface_weight = iface->speed / iface_min_speed; + seq_printf(m, "\t\tWeight (cur,total): (%zu,%zu)" + "\n\t\tAllocated channels: %u\n", + iface->weight_fulfilled, + iface_weight, + iface->num_channels); + if (is_ses_using_iface(ses, iface)) seq_puts(m, "\t\t[CONNECTED]\n"); } |