/* Deinit Flow Ring specific data structures */
void dhd_flow_rings_deinit(dhd_pub_t *dhdp)
{
uint16 idx;
uint32 flow_ring_table_sz;
uint32 if_flow_lkup_sz;
flow_ring_table_t *flow_ring_table;
unsigned long flags;
void *lock;
DHD_INFO(("dhd_flow_rings_deinit\n"));
if (dhdp->flow_ring_table != NULL) {
ASSERT(dhdp->num_flow_rings > 0);
DHD_FLOWID_LOCK(dhdp->flowid_lock, flags);
flow_ring_table = (flow_ring_table_t *)dhdp->flow_ring_table;
dhdp->flow_ring_table = NULL;
DHD_FLOWID_UNLOCK(dhdp->flowid_lock, flags);
for (idx = 0; idx < dhdp->num_flow_rings; idx++) {
if (flow_ring_table[idx].active) {
dhd_bus_clean_flow_ring(dhdp->bus, &flow_ring_table[idx]);
}
ASSERT(flow_queue_empty(&flow_ring_table[idx].queue));
/* Deinit flow ring queue locks before destroying flow ring table */
dhd_os_spin_lock_deinit(dhdp->osh, flow_ring_table[idx].lock);
flow_ring_table[idx].lock = NULL;
}
/* Destruct the flow ring table */
flow_ring_table_sz = dhdp->num_flow_rings * sizeof(flow_ring_table_t);
MFREE(dhdp->osh, flow_ring_table, flow_ring_table_sz);
}
DHD_FLOWID_LOCK(dhdp->flowid_lock, flags);
/* Destruct the per interface flow lkup table */
if (dhdp->if_flow_lkup != NULL) {
if_flow_lkup_sz = sizeof(if_flow_lkup_t) * DHD_MAX_IFS;
bzero(dhdp->if_flow_lkup, sizeof(if_flow_lkup_sz));
DHD_OS_PREFREE(dhdp, dhdp->if_flow_lkup, if_flow_lkup_sz);
dhdp->if_flow_lkup = NULL;
}
/* Destruct the flowid allocator */
if (dhdp->flowid_allocator != NULL)
dhdp->flowid_allocator = id16_map_fini(dhdp->osh, dhdp->flowid_allocator);
dhdp->num_flow_rings = 0U;
lock = dhdp->flowid_lock;
dhdp->flowid_lock = NULL;
DHD_FLOWID_UNLOCK(lock, flags);
dhd_os_spin_lock_deinit(dhdp->osh, lock);
}
/* Init Flow Ring specific data structures */
int
dhd_flow_rings_init(dhd_pub_t *dhdp, uint32 num_flow_rings)
{
uint32 idx;
uint32 flow_ring_table_sz;
uint32 if_flow_lkup_sz;
void * flowid_allocator;
flow_ring_table_t *flow_ring_table;
if_flow_lkup_t *if_flow_lkup = NULL;
#ifdef PCIE_TX_DEFERRAL
uint32 count;
#endif
void *lock = NULL;
unsigned long flags;
DHD_INFO(("%s\n", __FUNCTION__));
/* Construct a 16bit flow1d allocator */
flowid_allocator = id16_map_init(dhdp->osh,
num_flow_rings - FLOW_RING_COMMON, FLOWID_RESERVED);
if (flowid_allocator == NULL) {
DHD_ERROR(("%s: flowid allocator init failure\n", __FUNCTION__));
return BCME_NOMEM;
}
/* Allocate a flow ring table, comprising of requested number of rings */
flow_ring_table_sz = (num_flow_rings * sizeof(flow_ring_node_t));
flow_ring_table = (flow_ring_table_t *)MALLOC(dhdp->osh, flow_ring_table_sz);
if (flow_ring_table == NULL) {
DHD_ERROR(("%s: flow ring table alloc failure\n", __FUNCTION__));
goto fail;
}
/* Initialize flow ring table state */
bzero((uchar *)flow_ring_table, flow_ring_table_sz);
for (idx = 0; idx < num_flow_rings; idx++) {
flow_ring_table[idx].status = FLOW_RING_STATUS_CLOSED;
flow_ring_table[idx].flowid = (uint16)idx;
flow_ring_table[idx].lock = dhd_os_spin_lock_init(dhdp->osh);
if (flow_ring_table[idx].lock == NULL) {
DHD_ERROR(("%s: Failed to init spinlock for queue!\n", __FUNCTION__));
goto fail;
}
dll_init(&flow_ring_table[idx].list);
/* Initialize the per flow ring backup queue */
dhd_flow_queue_init(dhdp, &flow_ring_table[idx].queue,
FLOW_RING_QUEUE_THRESHOLD);
}
/* Allocate per interface hash table */
if_flow_lkup_sz = sizeof(if_flow_lkup_t) * DHD_MAX_IFS;
if_flow_lkup = (if_flow_lkup_t *)DHD_OS_PREALLOC(dhdp,
DHD_PREALLOC_IF_FLOW_LKUP, if_flow_lkup_sz);
if (if_flow_lkup == NULL) {
DHD_ERROR(("%s: if flow lkup alloc failure\n", __FUNCTION__));
goto fail;
}
/* Initialize per interface hash table */
bzero((uchar *)if_flow_lkup, if_flow_lkup_sz);
for (idx = 0; idx < DHD_MAX_IFS; idx++) {
int hash_ix;
if_flow_lkup[idx].status = 0;
if_flow_lkup[idx].role = 0;
for (hash_ix = 0; hash_ix < DHD_FLOWRING_HASH_SIZE; hash_ix++)
if_flow_lkup[idx].fl_hash[hash_ix] = NULL;
}
#ifdef PCIE_TX_DEFERRAL
count = BITS_TO_LONGS(num_flow_rings);
dhdp->bus->delete_flow_map = kzalloc(count, GFP_ATOMIC);
if (!dhdp->bus->delete_flow_map) {
DHD_ERROR(("%s: delete_flow_map alloc failure\n", __FUNCTION__));
goto fail;
}
#endif
lock = dhd_os_spin_lock_init(dhdp->osh);
if (lock == NULL)
goto fail;
dhdp->flow_prio_map_type = DHD_FLOW_PRIO_AC_MAP;
bcopy(prio2ac, dhdp->flow_prio_map, sizeof(uint8) * NUMPRIO);
/* Now populate into dhd pub */
DHD_FLOWID_LOCK(lock, flags);
dhdp->num_flow_rings = num_flow_rings;
dhdp->flowid_allocator = (void *)flowid_allocator;
dhdp->flow_ring_table = (void *)flow_ring_table;
dhdp->if_flow_lkup = (void *)if_flow_lkup;
dhdp->flowid_lock = lock;
DHD_FLOWID_UNLOCK(lock, flags);
DHD_INFO(("%s done\n", __FUNCTION__));
return BCME_OK;
fail:
#ifdef PCIE_TX_DEFERRAL
if (dhdp->bus->delete_flow_map)
kfree(dhdp->bus->delete_flow_map);
#endif
/* Destruct the per interface flow lkup table */
if (dhdp->if_flow_lkup != NULL) {
DHD_OS_PREFREE(dhdp, if_flow_lkup, if_flow_lkup_sz);
}
if (flow_ring_table != NULL) {
for (idx = 0; idx < num_flow_rings; idx++) {
if (flow_ring_table[idx].lock != NULL)
dhd_os_spin_lock_deinit(dhdp->osh, flow_ring_table[idx].lock);
}
MFREE(dhdp->osh, flow_ring_table, flow_ring_table_sz);
}
id16_map_fini(dhdp->osh, flowid_allocator);
return BCME_NOMEM;
}