#define SO_BUSY_POLL 46
#endif
-#define FRAME_SIZE 256
+#define FRAME_SIZE 128
#define BLOCK_SIZE 4096
#define BLOCK_NR 2
#define FRAME_NR (BLOCK_NR*(BLOCK_SIZE/FRAME_SIZE))
//struct sockaddr_ll *addr = (void*)hdr + TPACKET_ALIGN(ctx->hdrlen);
(void)ret;
struct can_frame *cf_mmap = (void*)hdr + hdr->tp_mac;
- //printf("ret:%d st:%#08x m:%d RX in frame %2d, CAN ID %#3x\n", ret, hdr->tp_status, hdr->tp_mac, ctx->current, cf_mmap->can_id);
*cf = *cf_mmap;
hdr->tp_status = 0;
ctx->current = (ctx->current + 1) % FRAME_NR;
int out_packet_tx(struct out_ctx *ctx, struct can_frame *cf)
{
volatile struct tpacket2_hdr *hdr = ctx->ptr + ctx->current*FRAME_SIZE;
- int ret = -1;
if (ctx->from_in == NOP)
return 0;
-
while (hdr->tp_status != TP_STATUS_AVAILABLE) {
- struct pollfd pfd = {.fd = ctx->s, .revents = 0,
- .events = POLLIN|POLLRDNORM|POLLERR };
- ret = CHECK(poll(&pfd, 1, -1));
+ CHECK(send(ctx->s, NULL, 0, 0));
}
- (void)ret;
+
//struct sockaddr_ll *addr = (void*)hdr + TPACKET_HDRLEN - sizeof(struct sockaddr_ll);
struct can_frame *cf_mmap = (void*)hdr + TPACKET_HDRLEN - sizeof(struct sockaddr_ll);
*cf_mmap = *cf;
ctx->current = (ctx->current + 1) % FRAME_NR;
if (ctx->from_in == SEND){
- ret = CHECK(send(ctx->s, NULL, 0, 0));
+ CHECK(send(ctx->s, NULL, 0, 0));
return 0;
}
return 0;