diff options
| author |   Damjan Marion <damarion@cisco.com> | 2017-03-06 21:51:00 +0100 |
|---|---|---|
| committer |   John Lo <loj@cisco.com> | 2017-03-08 19:29:29 +0000 |
| commit | 25f635852aee76255f7210c43d43668a80fdccce (patch) | |
| tree | b85ae2321eaafa672e7df3c47dae7dd465890191 /src/plugins/dpdk/device/init.c | |
| parent | 239d3fec80a5351f4d5f0cdeaec7f781a4e6ad32 (diff) | |
dpdk: dpdk-input optimizations and fixes
- fix issue caused by assumption that ethertype starts at 0
- intoduce buffer templates to speed-up vlib_buffer_t metadata
initialization
- avoid check for multiseg buffers inside loop if multiseg is disabled
- interleave prefetches to reduce load on L1 cache
Change-Id: I3b76e6d3e1e15ed28f01625edb7fbe9f38112e03
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'src/plugins/dpdk/device/init.c')
| -rwxr-xr-x | src/plugins/dpdk/device/init.c | 15 |
1 files changed, 15 insertions, 0 deletions
diff --git a/src/plugins/dpdk/device/init.c b/src/plugins/dpdk/device/init.c index 85ecde25..110d7457 100755 --- a/src/plugins/dpdk/device/init.c +++ b/src/plugins/dpdk/device/init.c @@ -572,6 +572,21 @@ dpdk_lib_init (dpdk_main_t * dm) dm->buffer_flags_template &= ~(IP_BUFFER_L4_CHECKSUM_CORRECT | IP_BUFFER_L4_CHECKSUM_COMPUTED); + /* vlib_buffer_t template */ + vec_validate_aligned (dm->buffer_templates, tm->n_vlib_mains - 1, + CLIB_CACHE_LINE_BYTES); + for (i = 0; i < tm->n_vlib_mains; i++) + { + vlib_buffer_free_list_t *fl; + vlib_buffer_t *bt = vec_elt_at_index (dm->buffer_templates, i); + fl = vlib_buffer_get_free_list (vm, + VLIB_BUFFER_DEFAULT_FREE_LIST_INDEX); + vlib_buffer_init_for_free_list (bt, fl); + bt->flags = dm->buffer_flags_template; + bt->current_data = -RTE_PKTMBUF_HEADROOM; + vnet_buffer (bt)->sw_if_index[VLIB_TX] = (u32) ~ 0; + } + for (i = 0; i < nports; i++) { u8 addr[6]; |