Andrew, Thanks again, I thought I had already applied these changes. Rebuilt everything, and l3fwd works as expected. Is there a way to get any stats from l3fwd ?
Thanks Chris > On 02/09/2017 02:14 AM, Chris Hall wrote: >> I’m having a bit of trouble running the l3fwd example program, I keep >> getting the error “rte_eth_rx_queue_setup: err=-22” >> No matter what options I supply. Wondering if I’m missing something ? > >The problem is that almost all (all except testpmd which has >command-line option to override default) DPDK example application use >hardcoded number of the Rx/Tx descriptors instead of usage of limits >advertised by PMD in rte_eth_dev_info_get() (structure rte_eth_dev_info, >member rx_desc_lim). The following tiny patch solves the problem, but it >s still hardcode (better and right solution is to write few lines of >code which adjust defaults using information provided by the PMD - we >have plans, since sfc_efx PMD is affected, to run through example >applications and suggest patches) > >=== >diff --git a/examples/l3fwd/main.c b/examples/l3fwd/main.c >index a50d628..1cc6465 100644 >--- a/examples/l3fwd/main.c >+++ b/examples/l3fwd/main.c >@@ -82,7 +82,7 @@ > /* > * Configurable number of RX/TX ring descriptors > */ >-#define RTE_TEST_RX_DESC_DEFAULT 128 >+#define RTE_TEST_RX_DESC_DEFAULT 512
