diff options
| author |   Damjan Marion <damarion@cisco.com> | 2016-02-18 10:11:34 +0100 |
|---|---|---|
| committer |   Dave Barach <openvpp@barachs.net> | 2016-06-07 19:29:28 +0000 |
| commit | b54db102acdae5694f21d6617eef52f8f7f77c29 (patch) | |
| tree | b0e9da4c9a599257855032dce40765f8e9806cf2 /vnet | |
| parent | 19414deeaa15ea9434f86d40a5bc7ca43916eab5 (diff) | |
Adjust buffer data offset based on rte_mbuff data_off
This commit removes assumption that all packets have
data offset equal to RTE_PKTMBUF_HEADROOM. Some drivers
like fm10K receive packets with different data offset.
Change-Id: I0aba6296458dab9df6fff639b4b827b2084ddc3e
Signed-off-by: Damjan Marion <damarion@cisco.com>
Diffstat (limited to 'vnet')
| -rw-r--r-- | vnet/vnet/devices/dpdk/node.c | 17 |
1 files changed, 6 insertions, 11 deletions
diff --git a/vnet/vnet/devices/dpdk/node.c b/vnet/vnet/devices/dpdk/node.c index 0dd3cfcd..2c90d80a 100644 --- a/vnet/vnet/devices/dpdk/node.c +++ b/vnet/vnet/devices/dpdk/node.c @@ -502,7 +502,6 @@ static inline u32 dpdk_device_input ( dpdk_main_t * dm, u32 n_trace, trace_cnt __attribute__((unused)); vlib_buffer_free_list_t * fl; u8 efd_discard_burst = 0; - u16 ip_align_offset = 0; u32 buffer_flags_template; if (xd->admin_up == 0) @@ -522,9 +521,6 @@ static inline u32 dpdk_device_input ( dpdk_main_t * dm, return 0; } - if (xd->pmd == VNET_DPDK_PMD_THUNDERX) - ip_align_offset = 6; - buffer_flags_template = dm->buffer_flags_template; vec_reset_length (xd->d_trace_buffers); @@ -673,15 +669,11 @@ static inline u32 dpdk_device_input ( dpdk_main_t * dm, sizeof (ethernet_header_t) : 0); b0->current_data = l3_offset0; + /* Some drivers like fm10k receive frames with + mb->data_off > RTE_PKTMBUF_HEADROOM */ + b0->current_data += mb->data_off - RTE_PKTMBUF_HEADROOM; b0->current_length = mb->data_len - l3_offset0; - if (PREDICT_FALSE (ip_align_offset != 0)) - { - if (next0 == DPDK_RX_NEXT_IP4_INPUT || - next0 == DPDK_RX_NEXT_IP6_INPUT) - b0->current_data += ip_align_offset; - } - b0->flags = buffer_flags_template; if (VMWARE_LENGTH_BUG_WORKAROUND) @@ -1390,6 +1382,9 @@ void dpdk_io_thread (vlib_worker_thread_t * w, sizeof (ethernet_header_t) : 0); b0->current_data = l3_offset0; + /* Some drivers like fm10k receive frames with + mb->data_off > RTE_PKTMBUF_HEADROOM */ + b0->current_data += mb->data_off - RTE_PKTMBUF_HEADROOM; b0->current_length = mb->data_len - l3_offset0; b0->flags = buffer_flags_template; |