diff options
Diffstat (limited to 'src/plugins/af_xdp/device.c')
| -rw-r--r-- | src/plugins/af_xdp/device.c | 14 |
1 files changed, 14 insertions, 0 deletions
diff --git a/src/plugins/af_xdp/device.c b/src/plugins/af_xdp/device.c index d107a39b199..5a16ede1323 100644 --- a/src/plugins/af_xdp/device.c +++ b/src/plugins/af_xdp/device.c @@ -33,6 +33,10 @@ #include <vnet/interface/tx_queue_funcs.h> #include "af_xdp.h" +#ifndef XDP_UMEM_MIN_CHUNK_SIZE +#define XDP_UMEM_MIN_CHUNK_SIZE 2048 +#endif + af_xdp_main_t af_xdp_main; typedef struct @@ -272,8 +276,18 @@ af_xdp_create_queue (vlib_main_t *vm, af_xdp_create_if_args_t *args, (umem, uword_to_pointer (vm->buffer_main->buffer_mem_start, void *), vm->buffer_main->buffer_mem_size, fq, cq, &umem_config)) { + uword sys_page_size = clib_mem_get_page_size (); args->rv = VNET_API_ERROR_SYSCALL_ERROR_1; args->error = clib_error_return_unix (0, "xsk_umem__create() failed"); + /* this should mimic the Linux kernel net/xdp/xdp_umem.c:xdp_umem_reg() + * check */ + if (umem_config.frame_size < XDP_UMEM_MIN_CHUNK_SIZE || + umem_config.frame_size > sys_page_size) + args->error = clib_error_return ( + args->error, + "(unsupported data-size? (should be between %d and %d))", + XDP_UMEM_MIN_CHUNK_SIZE - sizeof (vlib_buffer_t), + sys_page_size - sizeof (vlib_buffer_t)); goto err0; } |