/*
* Initialize a Copy Engine based on caller-supplied attributes.
* This may be called once to initialize both source and destination
* rings or it may be called twice for separate source and destination
* initialization. It may be that only one side or the other is
* initialized by software/firmware.
*/
int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
const struct ce_attr *attr)
{
int ret;
if (attr->src_nentries) {
ret = ath10k_ce_init_src_ring(ar, ce_id, attr);
if (ret) {
ath10k_err(ar, "Failed to initialize CE src ring for ID: %d (%d)\n",
ce_id, ret);
return ret;
}
}
if (attr->dest_nentries) {
ret = ath10k_ce_init_dest_ring(ar, ce_id, attr);
if (ret) {
ath10k_err(ar, "Failed to initialize CE dest ring for ID: %d (%d)\n",
ce_id, ret);
return ret;
}
}
return 0;
}
/*
* Initialize a Copy Engine based on caller-supplied attributes.
* This may be called once to initialize both source and destination
* rings or it may be called twice for separate source and destination
* initialization. It may be that only one side or the other is
* initialized by software/firmware.
*/
int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
const struct ce_attr *attr)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
int ret;
/*
* Make sure there's enough CE ringbuffer entries for HTT TX to avoid
* additional TX locking checks.
*
* For the lack of a better place do the check here.
*/
BUILD_BUG_ON(2*TARGET_NUM_MSDU_DESC >
(CE_HTT_H2T_MSG_SRC_NENTRIES - 1));
BUILD_BUG_ON(2*TARGET_10X_NUM_MSDU_DESC >
(CE_HTT_H2T_MSG_SRC_NENTRIES - 1));
ret = ath10k_pci_wake(ar);
if (ret)
return ret;
spin_lock_bh(&ar_pci->ce_lock);
ce_state->ar = ar;
ce_state->id = ce_id;
ce_state->ctrl_addr = ath10k_ce_base_address(ce_id);
ce_state->attr_flags = attr->flags;
ce_state->src_sz_max = attr->src_sz_max;
spin_unlock_bh(&ar_pci->ce_lock);
if (attr->src_nentries) {
ret = ath10k_ce_init_src_ring(ar, ce_id, attr);
if (ret) {
ath10k_err("Failed to initialize CE src ring for ID: %d (%d)\n",
ce_id, ret);
goto out;
}
}
if (attr->dest_nentries) {
ret = ath10k_ce_init_dest_ring(ar, ce_id, attr);
if (ret) {
ath10k_err("Failed to initialize CE dest ring for ID: %d (%d)\n",
ce_id, ret);
goto out;
}
}
out:
ath10k_pci_sleep(ar);
return ret;
}
/*
* Initialize a Copy Engine based on caller-supplied attributes.
* This may be called once to initialize both source and destination
* rings or it may be called twice for separate source and destination
* initialization. It may be that only one side or the other is
* initialized by software/firmware.
*/
struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
unsigned int ce_id,
const struct ce_attr *attr)
{
struct ath10k_ce_pipe *ce_state;
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
int ret;
ret = ath10k_pci_wake(ar);
if (ret)
return NULL;
ce_state = ath10k_ce_init_state(ar, ce_id, attr);
if (!ce_state) {
ath10k_err("Failed to initialize CE state for ID: %d\n", ce_id);
return NULL;
}
if (attr->src_nentries) {
ret = ath10k_ce_init_src_ring(ar, ce_id, ce_state, attr);
if (ret) {
ath10k_err("Failed to initialize CE src ring for ID: %d (%d)\n",
ce_id, ret);
ath10k_ce_deinit(ce_state);
return NULL;
}
}
if (attr->dest_nentries) {
ret = ath10k_ce_init_dest_ring(ar, ce_id, ce_state, attr);
if (ret) {
ath10k_err("Failed to initialize CE dest ring for ID: %d (%d)\n",
ce_id, ret);
ath10k_ce_deinit(ce_state);
return NULL;
}
}
/* Enable CE error interrupts */
ath10k_ce_error_intr_enable(ar, ctrl_addr);
ath10k_pci_sleep(ar);
return ce_state;
}
