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Diffstat (limited to 'Documentation/networking/scaling.txt')
| -rw-r--r-- | Documentation/networking/scaling.txt | 11 |
1 files changed, 10 insertions, 1 deletions
diff --git a/Documentation/networking/scaling.txt b/Documentation/networking/scaling.txt index 99ca40e8e810..59f4db2a0c85 100644 --- a/Documentation/networking/scaling.txt +++ b/Documentation/networking/scaling.txt @@ -282,7 +282,7 @@ following is true: - The current CPU's queue head counter >= the recorded tail counter value in rps_dev_flow[i] -- The current CPU is unset (equal to RPS_NO_CPU) +- The current CPU is unset (>= nr_cpu_ids) - The current CPU is offline After this check, the packet is sent to the (possibly updated) current @@ -421,6 +421,15 @@ best CPUs to share a given queue are probably those that share the cache with the CPU that processes transmit completions for that queue (transmit interrupts). +Per TX Queue rate limitation: +============================= + +These are rate-limitation mechanisms implemented by HW, where currently +a max-rate attribute is supported, by setting a Mbps value to + +/sys/class/net/<dev>/queues/tx-<n>/tx_maxrate + +A value of zero means disabled, and this is the default. Further Information =================== |