int
efhw_keventq_ctor(struct efhw_nic *nic, int instance,
struct efhw_keventq *evq,
struct efhw_ev_handler *ev_handlers)
{
int rc;
unsigned buf_bytes = evq->hw.capacity * sizeof(efhw_event_t);
evq->instance = instance;
evq->ev_handlers = ev_handlers;
/* allocate an IObuffer for the eventq */
rc = efhw_nic_event_queue_alloc_iobuffer(nic, &evq->hw, evq->instance,
buf_bytes);
if (rc < 0)
return rc;
/* Zero the timer-value for this queue.
AND Tell the nic about the event queue. */
efhw_nic_event_queue_enable(nic, evq->instance, evq->hw.capacity,
evq->hw.buf_tbl_alloc.base,
ev_handlers != NULL /* interrupting */,
1 /* dos protection enable*/);
evq->lock = KEVQ_UNLOCKED;
evq->evq_base = efhw_iopages_ptr(&evq->hw.iobuff);
evq->evq_ptr = 0;
evq->evq_mask = (evq->hw.capacity * sizeof(efhw_event_t)) - 1u;
EFHW_TRACE("%s: [%d] base=%p end=%p", __FUNCTION__, evq->instance,
evq->evq_base, evq->evq_base + buf_bytes);
return 0;
}
int
efhw_keventq_ctor(struct efhw_nic *nic, int instance,
struct efhw_keventq *evq,
struct efhw_ev_handler *ev_handlers)
{
unsigned int page_order;
int rc;
dma_addr_t dma_addrs[EFHW_BUFFER_TABLE_BLOCK_SIZE];
unsigned buf_bytes = evq->hw.capacity * sizeof(efhw_event_t);
EFHW_ASSERT(nic->devtype.arch == EFHW_ARCH_FALCON);
EFHW_ASSERT(buf_bytes);
page_order = get_order(buf_bytes);
evq->instance = instance;
evq->ev_handlers = ev_handlers;
/* allocate an IObuffer for the eventq */
rc = efhw_nic_event_queue_alloc_iobuffer(nic, &evq->hw, evq->instance,
dma_addrs, page_order);
if (rc < 0)
return rc;
/* Zero the timer-value for this queue.
AND Tell the nic about the event queue. */
efhw_nic_event_queue_enable(nic, evq->instance, evq->hw.capacity,
evq->hw.bt_block->btb_vaddr >>
EFHW_NIC_PAGE_SHIFT,
dma_addrs,
1 << page_order,
ev_handlers != NULL /* interrupting */,
1 /* dos protection enable*/,
0 /* not used on falcon */,
0 /* not used on falcon */,
0 /* not used on falcon */,
NULL /* not used on falcon */,
NULL /* not used on falcon */);
evq->lock = KEVQ_UNLOCKED;
evq->evq_base = efhw_iopages_ptr(&evq->hw.iobuff);
evq->evq_ptr = 0;
evq->evq_mask = (evq->hw.capacity * sizeof(efhw_event_t)) - 1u;
EFHW_TRACE("%s: [%d] base=%p end=%p", __FUNCTION__, evq->instance,
evq->evq_base, evq->evq_base + buf_bytes);
return 0;
}
