Merge branch 'mt7621-dt'

[linux-2.6-microblaze.git] / Documentation / networking / smc-sysctl.rst

diff --git a/Documentation/networking/smc-sysctl.rst b/Documentation/networking/smc-sysctl.rst
index 742e90e..6d8acdb 100644 (file)
--- a/Documentation/networking/smc-sysctl.rst
+++ b/Documentation/networking/smc-sysctl.rst
@@ -34,3 +34,28 @@ smcr_buf_type - INTEGER
         - 1 - Use virtually contiguous buffers
         - 2 - Mixed use of the two types. Try physically contiguous buffers first.
           If not available, use virtually contiguous buffers then.
+
+smcr_testlink_time - INTEGER
+       How frequently SMC-R link sends out TEST_LINK LLC messages to confirm
+       viability, after the last activity of connections on it. Value 0 means
+       disabling TEST_LINK.
+
+       Default: 30 seconds.
+
+wmem - INTEGER
+       Initial size of send buffer used by SMC sockets.
+       The default value inherits from net.ipv4.tcp_wmem[1].
+
+       The minimum value is 16KiB and there is no hard limit for max value, but
+       only allowed 512KiB for SMC-R and 1MiB for SMC-D.
+
+       Default: 16K
+
+rmem - INTEGER
+       Initial size of receive buffer (RMB) used by SMC sockets.
+       The default value inherits from net.ipv4.tcp_rmem[1].
+
+       The minimum value is 16KiB and there is no hard limit for max value, but
+       only allowed 512KiB for SMC-R and 1MiB for SMC-D.
+
+       Default: 128K