diff options
Diffstat (limited to 'src/vnet')
| -rwxr-xr-x | src/vnet/ethernet/node.c | 119 |
1 files changed, 63 insertions, 56 deletions
diff --git a/src/vnet/ethernet/node.c b/src/vnet/ethernet/node.c index 1f408de1bb5..9bfaf182eb2 100755 --- a/src/vnet/ethernet/node.c +++ b/src/vnet/ethernet/node.c @@ -607,6 +607,68 @@ eth_input_tag_lookup (vlib_main_t * vm, vnet_main_t * vnm, l->n_bytes += vlib_buffer_length_in_chain (vm, b); } +static_always_inline void +eth_input_process_frame_dmac_check (vnet_hw_interface_t * hi, + u64 * dmacs, u8 * dmacs_bad, + u32 n_packets) +{ + u64 mask = clib_net_to_host_u64 (0xFFFFFFFFFFFF0000); + u64 igbit = clib_net_to_host_u64 (0x0100000000000000); + u64 hwaddr = (*(u64 *) hi->hw_address) & mask; + u64 *dmac = dmacs; + u8 *dmac_bad = dmacs_bad; + + i32 n_left = n_packets; + +#ifdef CLIB_HAVE_VEC256 + u64x4 igbit4 = u64x4_splat (igbit); + u64x4 mask4 = u64x4_splat (mask); + u64x4 hwaddr4 = u64x4_splat (hwaddr); + while (n_left > 0) + { + u64x4 r0, r1; + r0 = u64x4_load_unaligned (dmac + 0) & mask4; + r1 = u64x4_load_unaligned (dmac + 4) & mask4; + + r0 = (r0 != hwaddr4) & ((r0 & igbit4) == 0); + r1 = (r1 != hwaddr4) & ((r1 & igbit4) == 0); + + *(u32 *) (dmac_bad + 0) = u8x32_msb_mask ((u8x32) (r0)); + *(u32 *) (dmac_bad + 4) = u8x32_msb_mask ((u8x32) (r1)); + + /* next */ + dmac += 8; + dmac_bad += 8; + n_left -= 8; + } +#else + while (n_left > 0) + { + u64 r0, r1, r2, r3; + + r0 = dmac[0] & mask; + r1 = dmac[1] & mask; + r2 = dmac[2] & mask; + r3 = dmac[3] & mask; + + r0 = (r0 != hwaddr) && ((r0 & igbit) == 0); + r1 = (r1 != hwaddr) && ((r1 & igbit) == 0); + r2 = (r2 != hwaddr) && ((r2 & igbit) == 0); + r3 = (r3 != hwaddr) && ((r3 & igbit) == 0); + + dmac_bad[0] = r0; + dmac_bad[1] = r1; + dmac_bad[2] = r2; + dmac_bad[3] = r3; + + /* next */ + dmac += 4; + dmac_bad += 4; + n_left -= 4; + } +#endif +} + /* process frame of buffers, store ethertype into array and update buffer metadata fields depending on interface being l2 or l3 assuming that packets are untagged. For tagged packets those fields are updated later. @@ -704,62 +766,7 @@ eth_input_process_frame (vlib_main_t * vm, vlib_node_runtime_t * node, } if (dmac_check) - { - u64 mask = clib_net_to_host_u64 (0xFFFFFFFFFFFF0000); - u64 igbit = clib_net_to_host_u64 (0x0100000000000000); - u64 hwaddr = (*(u64 *) hi->hw_address) & mask; - u64 *dmac = dmacs; - u8 *dmac_bad = dmacs_bad; - - n_left = n_packets; - -#ifdef CLIB_HAVE_VEC256 - u64x4 igbit4 = u64x4_splat (igbit); - u64x4 mask4 = u64x4_splat (mask); - u64x4 hwaddr4 = u64x4_splat (hwaddr); - while (n_left > 0) - { - u64x4 r0, r1; - r0 = u64x4_load_unaligned (dmac + 0) & mask4; - r1 = u64x4_load_unaligned (dmac + 4) & mask4; - - r0 = (r0 != hwaddr4) & ((r0 & igbit4) == 0); - r1 = (r1 != hwaddr4) & ((r1 & igbit4) == 0); - - *(u32 *) (dmac_bad + 0) = u8x32_msb_mask ((u8x32) (r0)); - *(u32 *) (dmac_bad + 4) = u8x32_msb_mask ((u8x32) (r1)); - - /* next */ - dmac += 8; - dmac_bad += 8; - n_left -= 8; - } -#else - while (n_left > 0) - { - u64 r0, r1, r2, r3; - r0 = dmac[0] & mask; - r1 = dmac[1] & mask; - r2 = dmac[2] & mask; - r3 = dmac[3] & mask; - - r0 = (r0 != hwaddr) && ((r0 & igbit) == 0); - r1 = (r1 != hwaddr) && ((r1 & igbit) == 0); - r2 = (r2 != hwaddr) && ((r2 & igbit) == 0); - r3 = (r3 != hwaddr) && ((r3 & igbit) == 0); - - dmac_bad[0] = r0; - dmac_bad[1] = r1; - dmac_bad[2] = r2; - dmac_bad[3] = r3; - - /* next */ - dmac += 4; - dmac_bad += 4; - n_left -= 4; - } -#endif - } + eth_input_process_frame_dmac_check (hi, dmacs, dmacs_bad, n_packets); next_ip4 = em->l3_next.input_next_ip4; next_ip6 = em->l3_next.input_next_ip6; |