* ath10k_ce_sendlist_send.
* The caller takes responsibility for any needed locking.
*/
-static int ath10k_ce_send_nolock(struct ce_state *ce_state,
+static int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
void *per_transfer_context,
u32 buffer,
unsigned int nbytes,
unsigned int flags)
{
struct ath10k *ar = ce_state->ar;
- struct ce_ring_state *src_ring = ce_state->src_ring;
+ struct ath10k_ce_ring *src_ring = ce_state->src_ring;
struct ce_desc *desc, *sdesc;
unsigned int nentries_mask = src_ring->nentries_mask;
unsigned int sw_index = src_ring->sw_index;
ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
__func__, nbytes, ce_state->src_sz_max);
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return ret;
if (unlikely(CE_RING_DELTA(nentries_mask,
write_index, sw_index - 1) <= 0)) {
return ret;
}
-int ath10k_ce_send(struct ce_state *ce_state,
+int ath10k_ce_send(struct ath10k_ce_pipe *ce_state,
void *per_transfer_context,
u32 buffer,
unsigned int nbytes,
sendlist->num_items++;
}
-int ath10k_ce_sendlist_send(struct ce_state *ce_state,
+int ath10k_ce_sendlist_send(struct ath10k_ce_pipe *ce_state,
void *per_transfer_context,
struct ce_sendlist *sendlist,
unsigned int transfer_id)
{
- struct ce_ring_state *src_ring = ce_state->src_ring;
+ struct ath10k_ce_ring *src_ring = ce_state->src_ring;
struct ce_sendlist_item *item;
struct ath10k *ar = ce_state->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
return ret;
}
-int ath10k_ce_recv_buf_enqueue(struct ce_state *ce_state,
+int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
void *per_recv_context,
u32 buffer)
{
- struct ce_ring_state *dest_ring = ce_state->dest_ring;
+ struct ath10k_ce_ring *dest_ring = ce_state->dest_ring;
u32 ctrl_addr = ce_state->ctrl_addr;
struct ath10k *ar = ce_state->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
write_index = dest_ring->write_index;
sw_index = dest_ring->sw_index;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ goto out;
if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
struct ce_desc *base = dest_ring->base_addr_owner_space;
ret = -EIO;
}
ath10k_pci_sleep(ar);
+
+out:
spin_unlock_bh(&ar_pci->ce_lock);
return ret;
* Guts of ath10k_ce_completed_recv_next.
* The caller takes responsibility for any necessary locking.
*/
-static int ath10k_ce_completed_recv_next_nolock(struct ce_state *ce_state,
+static int ath10k_ce_completed_recv_next_nolock(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp,
unsigned int *nbytesp,
unsigned int *transfer_idp,
unsigned int *flagsp)
{
- struct ce_ring_state *dest_ring = ce_state->dest_ring;
+ struct ath10k_ce_ring *dest_ring = ce_state->dest_ring;
unsigned int nentries_mask = dest_ring->nentries_mask;
unsigned int sw_index = dest_ring->sw_index;
return 0;
}
-int ath10k_ce_completed_recv_next(struct ce_state *ce_state,
+int ath10k_ce_completed_recv_next(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp,
unsigned int *nbytesp,
return ret;
}
-int ath10k_ce_revoke_recv_next(struct ce_state *ce_state,
+int ath10k_ce_revoke_recv_next(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp)
{
- struct ce_ring_state *dest_ring;
+ struct ath10k_ce_ring *dest_ring;
unsigned int nentries_mask;
unsigned int sw_index;
unsigned int write_index;
* Guts of ath10k_ce_completed_send_next.
* The caller takes responsibility for any necessary locking.
*/
-static int ath10k_ce_completed_send_next_nolock(struct ce_state *ce_state,
+static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp,
unsigned int *nbytesp,
unsigned int *transfer_idp)
{
- struct ce_ring_state *src_ring = ce_state->src_ring;
+ struct ath10k_ce_ring *src_ring = ce_state->src_ring;
u32 ctrl_addr = ce_state->ctrl_addr;
struct ath10k *ar = ce_state->ar;
unsigned int nentries_mask = src_ring->nentries_mask;
unsigned int sw_index = src_ring->sw_index;
+ struct ce_desc *sdesc, *sbase;
unsigned int read_index;
- int ret = -EIO;
+ int ret;
if (src_ring->hw_index == sw_index) {
/*
* the SW has really caught up to the HW, or if the cached
* value of the HW index has become stale.
*/
- ath10k_pci_wake(ar);
+
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return ret;
+
src_ring->hw_index =
ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
src_ring->hw_index &= nentries_mask;
+
ath10k_pci_sleep(ar);
}
+
read_index = src_ring->hw_index;
- if ((read_index != sw_index) && (read_index != 0xffffffff)) {
- struct ce_desc *sbase = src_ring->shadow_base;
- struct ce_desc *sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
+ if ((read_index == sw_index) || (read_index == 0xffffffff))
+ return -EIO;
- /* Return data from completed source descriptor */
- *bufferp = __le32_to_cpu(sdesc->addr);
- *nbytesp = __le16_to_cpu(sdesc->nbytes);
- *transfer_idp = MS(__le16_to_cpu(sdesc->flags),
- CE_DESC_FLAGS_META_DATA);
+ sbase = src_ring->shadow_base;
+ sdesc = CE_SRC_RING_TO_DESC(sbase, sw_index);
- if (per_transfer_contextp)
- *per_transfer_contextp =
- src_ring->per_transfer_context[sw_index];
+ /* Return data from completed source descriptor */
+ *bufferp = __le32_to_cpu(sdesc->addr);
+ *nbytesp = __le16_to_cpu(sdesc->nbytes);
+ *transfer_idp = MS(__le16_to_cpu(sdesc->flags),
+ CE_DESC_FLAGS_META_DATA);
- /* sanity */
- src_ring->per_transfer_context[sw_index] = NULL;
+ if (per_transfer_contextp)
+ *per_transfer_contextp =
+ src_ring->per_transfer_context[sw_index];
- /* Update sw_index */
- sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
- src_ring->sw_index = sw_index;
- ret = 0;
- }
+ /* sanity */
+ src_ring->per_transfer_context[sw_index] = NULL;
- return ret;
+ /* Update sw_index */
+ sw_index = CE_RING_IDX_INCR(nentries_mask, sw_index);
+ src_ring->sw_index = sw_index;
+
+ return 0;
}
/* NB: Modeled after ath10k_ce_completed_send_next */
-int ath10k_ce_cancel_send_next(struct ce_state *ce_state,
+int ath10k_ce_cancel_send_next(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp,
unsigned int *nbytesp,
unsigned int *transfer_idp)
{
- struct ce_ring_state *src_ring;
+ struct ath10k_ce_ring *src_ring;
unsigned int nentries_mask;
unsigned int sw_index;
unsigned int write_index;
return ret;
}
-int ath10k_ce_completed_send_next(struct ce_state *ce_state,
+int ath10k_ce_completed_send_next(struct ath10k_ce_pipe *ce_state,
void **per_transfer_contextp,
u32 *bufferp,
unsigned int *nbytesp,
void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+ struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
u32 ctrl_addr = ce_state->ctrl_addr;
void *transfer_context;
u32 buf;
unsigned int nbytes;
unsigned int id;
unsigned int flags;
+ int ret;
+
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
- ath10k_pci_wake(ar);
spin_lock_bh(&ar_pci->ce_lock);
/* Clear the copy-complete interrupts that will be handled here. */
void ath10k_ce_per_engine_service_any(struct ath10k *ar)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- int ce_id;
+ int ce_id, ret;
u32 intr_summary;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
+
intr_summary = CE_INTERRUPT_SUMMARY(ar);
for (ce_id = 0; intr_summary && (ce_id < ar_pci->ce_count); ce_id++) {
*
* Called with ce_lock held.
*/
-static void ath10k_ce_per_engine_handler_adjust(struct ce_state *ce_state,
+static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
int disable_copy_compl_intr)
{
u32 ctrl_addr = ce_state->ctrl_addr;
struct ath10k *ar = ce_state->ar;
+ int ret;
- ath10k_pci_wake(ar);
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
if ((!disable_copy_compl_intr) &&
(ce_state->send_cb || ce_state->recv_cb))
void ath10k_ce_disable_interrupts(struct ath10k *ar)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- int ce_id;
+ int ce_id, ret;
+
+ ret = ath10k_pci_wake(ar);
+ if (ret)
+ return;
- ath10k_pci_wake(ar);
for (ce_id = 0; ce_id < ar_pci->ce_count; ce_id++) {
- struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+ struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
u32 ctrl_addr = ce_state->ctrl_addr;
ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
ath10k_pci_sleep(ar);
}
-void ath10k_ce_send_cb_register(struct ce_state *ce_state,
- void (*send_cb) (struct ce_state *ce_state,
- void *transfer_context,
- u32 buffer,
- unsigned int nbytes,
- unsigned int transfer_id),
+void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
+ void (*send_cb)(struct ath10k_ce_pipe *ce_state,
+ void *transfer_context,
+ u32 buffer,
+ unsigned int nbytes,
+ unsigned int transfer_id),
int disable_interrupts)
{
struct ath10k *ar = ce_state->ar;
spin_unlock_bh(&ar_pci->ce_lock);
}
-void ath10k_ce_recv_cb_register(struct ce_state *ce_state,
- void (*recv_cb) (struct ce_state *ce_state,
- void *transfer_context,
- u32 buffer,
- unsigned int nbytes,
- unsigned int transfer_id,
- unsigned int flags))
+void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
+ void (*recv_cb)(struct ath10k_ce_pipe *ce_state,
+ void *transfer_context,
+ u32 buffer,
+ unsigned int nbytes,
+ unsigned int transfer_id,
+ unsigned int flags))
{
struct ath10k *ar = ce_state->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
static int ath10k_ce_init_src_ring(struct ath10k *ar,
unsigned int ce_id,
- struct ce_state *ce_state,
+ struct ath10k_ce_pipe *ce_state,
const struct ce_attr *attr)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- struct ce_ring_state *src_ring;
+ struct ath10k_ce_ring *src_ring;
unsigned int nentries = attr->src_nentries;
unsigned int ce_nbytes;
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
return 0;
}
- ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+ ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
ptr = kzalloc(ce_nbytes, GFP_KERNEL);
if (ptr == NULL)
return -ENOMEM;
- ce_state->src_ring = (struct ce_ring_state *)ptr;
+ ce_state->src_ring = (struct ath10k_ce_ring *)ptr;
src_ring = ce_state->src_ring;
- ptr += sizeof(struct ce_ring_state);
+ ptr += sizeof(struct ath10k_ce_ring);
src_ring->nentries = nentries;
src_ring->nentries_mask = nentries - 1;
static int ath10k_ce_init_dest_ring(struct ath10k *ar,
unsigned int ce_id,
- struct ce_state *ce_state,
+ struct ath10k_ce_pipe *ce_state,
const struct ce_attr *attr)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- struct ce_ring_state *dest_ring;
+ struct ath10k_ce_ring *dest_ring;
unsigned int nentries = attr->dest_nentries;
unsigned int ce_nbytes;
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
return 0;
}
- ce_nbytes = sizeof(struct ce_ring_state) + (nentries * sizeof(void *));
+ ce_nbytes = sizeof(struct ath10k_ce_ring) + (nentries * sizeof(void *));
ptr = kzalloc(ce_nbytes, GFP_KERNEL);
if (ptr == NULL)
return -ENOMEM;
- ce_state->dest_ring = (struct ce_ring_state *)ptr;
+ ce_state->dest_ring = (struct ath10k_ce_ring *)ptr;
dest_ring = ce_state->dest_ring;
- ptr += sizeof(struct ce_ring_state);
+ ptr += sizeof(struct ath10k_ce_ring);
dest_ring->nentries = nentries;
dest_ring->nentries_mask = nentries - 1;
return 0;
}
-static struct ce_state *ath10k_ce_init_state(struct ath10k *ar,
+static struct ath10k_ce_pipe *ath10k_ce_init_state(struct ath10k *ar,
unsigned int ce_id,
const struct ce_attr *attr)
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
- struct ce_state *ce_state = &ar_pci->ce_states[ce_id];
+ struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
spin_lock_bh(&ar_pci->ce_lock);
ce_state->ar = ar;
ce_state->id = ce_id;
ce_state->ctrl_addr = ctrl_addr;
- ce_state->state = CE_RUNNING;
ce_state->attr_flags = attr->flags;
ce_state->src_sz_max = attr->src_sz_max;
* initialization. It may be that only one side or the other is
* initialized by software/firmware.
*/
-struct ce_state *ath10k_ce_init(struct ath10k *ar,
+struct ath10k_ce_pipe *ath10k_ce_init(struct ath10k *ar,
unsigned int ce_id,
const struct ce_attr *attr)
{
- struct ce_state *ce_state;
+ struct ath10k_ce_pipe *ce_state;
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
int ret;
return ce_state;
}
-void ath10k_ce_deinit(struct ce_state *ce_state)
+void ath10k_ce_deinit(struct ath10k_ce_pipe *ce_state)
{
struct ath10k *ar = ce_state->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
kfree(ce_state->dest_ring);
}
- ce_state->state = CE_UNUSED;
ce_state->src_ring = NULL;
ce_state->dest_ring = NULL;
}
projects / cascardo / linux.git / blobdiff