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Diffstat (limited to 'Documentation/networking/smc-sysctl.rst')
| -rw-r--r-- | Documentation/networking/smc-sysctl.rst | 37 |
1 files changed, 37 insertions, 0 deletions
diff --git a/Documentation/networking/smc-sysctl.rst b/Documentation/networking/smc-sysctl.rst index 742e90e6d822..a874d007f2db 100644 --- a/Documentation/networking/smc-sysctl.rst +++ b/Documentation/networking/smc-sysctl.rst @@ -34,3 +34,40 @@ 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 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: 64KiB + +rmem - INTEGER + Initial size of receive buffer (RMB) used by SMC sockets. + + 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: 64KiB + +smcr_max_links_per_lgr - INTEGER + Controls the max number of links can be added to a SMC-R link group. Notice that + the actual number of the links added to a SMC-R link group depends on the number + of RDMA devices exist in the system. The acceptable value ranges from 1 to 2. Only + for SMC-R v2.1 and later. + + Default: 2 + +smcr_max_conns_per_lgr - INTEGER + Controls the max number of connections can be added to a SMC-R link group. The + acceptable value ranges from 16 to 255. Only for SMC-R v2.1 and later. + + Default: 255 |