/* Must be called before starting the monitor timer */
static int tlb_initialize(struct bonding *bond)
{
struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
int size = TLB_HASH_TABLE_SIZE * sizeof(struct tlb_client_info);
struct tlb_client_info *new_hashtbl;
int i;
spin_lock_init(&(bond_info->tx_hashtbl_lock));
new_hashtbl = kzalloc(size, GFP_KERNEL);
if (!new_hashtbl) {
pr_err("%s: Error: Failed to allocate TLB hash table\n",
bond->dev->name);
return -1;
}
_lock_tx_hashtbl(bond);
bond_info->tx_hashtbl = new_hashtbl;
for (i = 0; i < TLB_HASH_TABLE_SIZE; i++) {
tlb_init_table_entry(&bond_info->tx_hashtbl[i], 1);
}
_unlock_tx_hashtbl(bond);
return 0;
}
/* Must be called before starting the monitor timer */
static int
tlb_initialize(struct bonding *bond)
{
struct alb_bond_info *bond_info = &(BOND_ALB_INFO(bond));
int i;
size_t size;
#if(TLB_HASH_TABLE_SIZE != 256)
/* Key to the hash table is byte wide. Check the size! */
#error Hash Table size is wrong.
#endif
spin_lock_init(&(bond_info->tx_hashtbl_lock));
_lock_tx_hashtbl(bond);
if (bond_info->tx_hashtbl != NULL) {
printk (KERN_ERR "%s: TLB hash table is not NULL\n",
bond->device->name);
_unlock_tx_hashtbl(bond);
return -1;
}
size = TLB_HASH_TABLE_SIZE * sizeof(struct tlb_client_info);
bond_info->tx_hashtbl = kmalloc(size, GFP_KERNEL);
if (bond_info->tx_hashtbl == NULL) {
printk (KERN_ERR "%s: Failed to allocate TLB hash table\n",
bond->device->name);
_unlock_tx_hashtbl(bond);
return -1;
}
memset(bond_info->tx_hashtbl, 0, size);
for (i=0; i<TLB_HASH_TABLE_SIZE; i++) {
tlb_init_table_entry(bond, i, 1);
}
_unlock_tx_hashtbl(bond);
return 0;
}
/* Caller must hold bond lock for read */
static inline void
tlb_clear_slave(struct bonding *bond, struct slave *slave, u8 save_load)
{
struct tlb_client_info *tx_hash_table = NULL;
u32 index, next_index;
/* clear slave from tx_hashtbl */
_lock_tx_hashtbl(bond);
tx_hash_table = BOND_ALB_INFO(bond).tx_hashtbl;
if (tx_hash_table) {
index = SLAVE_TLB_INFO(slave).head;
while (index != TLB_NULL_INDEX) {
next_index = tx_hash_table[index].next;
tlb_init_table_entry(bond, index, save_load);
index = next_index;
}
}
_unlock_tx_hashtbl(bond);
tlb_init_slave(slave);
}
/* Caller must hold bond lock for read */
static void tlb_clear_slave(struct bonding *bond, struct slave *slave, int save_load)
{
struct tlb_client_info *tx_hash_table;
u32 index;
_lock_tx_hashtbl(bond);
/* clear slave from tx_hashtbl */
tx_hash_table = BOND_ALB_INFO(bond).tx_hashtbl;
/* skip this if we've already freed the tx hash table */
if (tx_hash_table) {
index = SLAVE_TLB_INFO(slave).head;
while (index != TLB_NULL_INDEX) {
u32 next_index = tx_hash_table[index].next;
tlb_init_table_entry(&tx_hash_table[index], save_load);
index = next_index;
}
}
tlb_init_slave(slave);
_unlock_tx_hashtbl(bond);
}