static void rx_post_8(void)
{
struct pkt_buf* pb;
int i;
unsigned buf_i;
for( i = 0; i < 8; ++i ) {
buf_i = rx_posted % N_RX_BUFS;
TEST(rx_posted - rx_completed < N_RX_BUFS);
pb = pkt_bufs[buf_i];
TRY(ef_vi_receive_init(&vi, pb->dma_buf_addr, pb->id));
++rx_posted;
}
ef_vi_receive_push(&vi);
}
/* Try to refill the RXQ on the given VI with at most
* REFILL_BATCH_SIZE packets if it has enough space and we have
* enough free buffers. */
static void vi_refill_rx_ring(struct vi_state* vi_state)
{
ef_vi* vi = &vi_state->vi;
#define REFILL_BATCH_SIZE 16
struct pkt_buf* pkt_buf;
int i;
if( ef_vi_receive_space(vi) < REFILL_BATCH_SIZE ||
vi_state->free_pool_n < REFILL_BATCH_SIZE )
return;
for( i = 0; i < REFILL_BATCH_SIZE; ++i ) {
pkt_buf = vi_state->free_pool;
vi_state->free_pool = vi_state->free_pool->next;
--vi_state->free_pool_n;
ef_vi_receive_init(vi, pkt_buf->rx_ef_addr, pkt_buf->id);
}
ef_vi_receive_push(vi);
}
/* Try to refill the RXQ on the given VI with at most
* REFILL_BATCH_SIZE packets if it has enough space and we have
* enough free buffers. */
static void vi_refill_rx_ring(int vi_i)
{
ef_vi* vi = &vis[vi_i].vi;
#define REFILL_BATCH_SIZE 64
struct pkt_buf* pkt_buf;
int i;
if( ef_vi_receive_space(vi) < REFILL_BATCH_SIZE ||
pbs.free_pool_n < REFILL_BATCH_SIZE )
return;
for( i = 0; i < REFILL_BATCH_SIZE; ++i ) {
pkt_buf = pbs.free_pool;
pbs.free_pool = pbs.free_pool->next;
--pbs.free_pool_n;
ef_vi_receive_init(vi, pkt_buf->rx_ef_addr[vi_i], pkt_buf->id);
}
ef_vi_receive_push(vi);
}
void vi_refill_rx_ring(struct vi* vi)
{
#define REFILL_BATCH_SIZE 16
struct pkt_buf* pkt_buf;
int i;
if( ef_vi_receive_space(&vi->vi) >= REFILL_BATCH_SIZE &&
vi->free_pkt_bufs_n >= REFILL_BATCH_SIZE ) {
for( i = 0; i < REFILL_BATCH_SIZE; ++i ) {
pkt_buf = vi->free_pkt_bufs;
vi->free_pkt_bufs = vi->free_pkt_bufs->next;
--vi->free_pkt_bufs_n;
assert(pkt_buf->n_refs == 0);
pkt_buf->n_refs = 1;
ef_vi_receive_init(&vi->vi, pkt_buf->addr[vi->net_if->id] + RX_DMA_OFF,
pkt_buf->id);
}
ef_vi_receive_push(&vi->vi);
}
}
int ef_vi_receive_post(ef_vi* vi, ef_addr addr, ef_request_id dma_id)
{
int rc = ef_vi_receive_init(vi, addr, dma_id);
if( rc == 0 ) ef_vi_receive_push(vi);
return rc;
}