summaryrefslogtreecommitdiff
path: root/drivers/net/wireless/ath/ath10k/ce.c
diff options
context:
space:
mode:
Diffstat (limited to 'drivers/net/wireless/ath/ath10k/ce.c')
-rw-r--r--drivers/net/wireless/ath/ath10k/ce.c185
1 files changed, 66 insertions, 119 deletions
diff --git a/drivers/net/wireless/ath/ath10k/ce.c b/drivers/net/wireless/ath/ath10k/ce.c
index 4333107ecf37..71eef233bd01 100644
--- a/drivers/net/wireless/ath/ath10k/ce.c
+++ b/drivers/net/wireless/ath/ath10k/ce.c
@@ -284,13 +284,9 @@ int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
int ret = 0;
if (nbytes > ce_state->src_sz_max)
- ath10k_warn("%s: send more we can (nbytes: %d, max: %d)\n",
+ ath10k_warn(ar, "%s: send more we can (nbytes: %d, max: %d)\n",
__func__, nbytes, ce_state->src_sz_max);
- ret = ath10k_pci_wake(ar);
- if (ret)
- return ret;
-
if (unlikely(CE_RING_DELTA(nentries_mask,
write_index, sw_index - 1) <= 0)) {
ret = -ENOSR;
@@ -325,7 +321,6 @@ int ath10k_ce_send_nolock(struct ath10k_ce_pipe *ce_state,
src_ring->write_index = write_index;
exit:
- ath10k_pci_sleep(ar);
return ret;
}
@@ -390,49 +385,57 @@ int ath10k_ce_num_free_src_entries(struct ath10k_ce_pipe *pipe)
return delta;
}
-int ath10k_ce_recv_buf_enqueue(struct ath10k_ce_pipe *ce_state,
- void *per_recv_context,
- u32 buffer)
+
+int __ath10k_ce_rx_num_free_bufs(struct ath10k_ce_pipe *pipe)
{
- 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 *ar = pipe->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+ struct ath10k_ce_ring *dest_ring = pipe->dest_ring;
unsigned int nentries_mask = dest_ring->nentries_mask;
- unsigned int write_index;
- unsigned int sw_index;
- int ret;
+ unsigned int write_index = dest_ring->write_index;
+ unsigned int sw_index = dest_ring->sw_index;
- spin_lock_bh(&ar_pci->ce_lock);
- write_index = dest_ring->write_index;
- sw_index = dest_ring->sw_index;
+ lockdep_assert_held(&ar_pci->ce_lock);
- ret = ath10k_pci_wake(ar);
- if (ret)
- goto out;
+ return CE_RING_DELTA(nentries_mask, write_index, sw_index - 1);
+}
- if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) > 0) {
- struct ce_desc *base = dest_ring->base_addr_owner_space;
- struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, write_index);
+int __ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr)
+{
+ struct ath10k *ar = pipe->ar;
+ struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+ struct ath10k_ce_ring *dest_ring = pipe->dest_ring;
+ unsigned int nentries_mask = dest_ring->nentries_mask;
+ unsigned int write_index = dest_ring->write_index;
+ unsigned int sw_index = dest_ring->sw_index;
+ struct ce_desc *base = dest_ring->base_addr_owner_space;
+ struct ce_desc *desc = CE_DEST_RING_TO_DESC(base, write_index);
+ u32 ctrl_addr = pipe->ctrl_addr;
- /* Update destination descriptor */
- desc->addr = __cpu_to_le32(buffer);
- desc->nbytes = 0;
+ lockdep_assert_held(&ar_pci->ce_lock);
- dest_ring->per_transfer_context[write_index] =
- per_recv_context;
+ if (CE_RING_DELTA(nentries_mask, write_index, sw_index - 1) == 0)
+ return -EIO;
- /* Update Destination Ring Write Index */
- write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
- ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
- dest_ring->write_index = write_index;
- ret = 0;
- } else {
- ret = -EIO;
- }
- ath10k_pci_sleep(ar);
+ desc->addr = __cpu_to_le32(paddr);
+ desc->nbytes = 0;
+
+ dest_ring->per_transfer_context[write_index] = ctx;
+ write_index = CE_RING_IDX_INCR(nentries_mask, write_index);
+ ath10k_ce_dest_ring_write_index_set(ar, ctrl_addr, write_index);
+ dest_ring->write_index = write_index;
+
+ return 0;
+}
+
+int ath10k_ce_rx_post_buf(struct ath10k_ce_pipe *pipe, void *ctx, u32 paddr)
+{
+ struct ath10k *ar = pipe->ar;
+ struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+ int ret;
-out:
+ spin_lock_bh(&ar_pci->ce_lock);
+ ret = __ath10k_ce_rx_post_buf(pipe, ctx, paddr);
spin_unlock_bh(&ar_pci->ce_lock);
return ret;
@@ -588,7 +591,6 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
unsigned int sw_index = src_ring->sw_index;
struct ce_desc *sdesc, *sbase;
unsigned int read_index;
- int ret;
if (src_ring->hw_index == sw_index) {
/*
@@ -599,18 +601,12 @@ static int ath10k_ce_completed_send_next_nolock(struct ath10k_ce_pipe *ce_state,
* value of the HW index has become stale.
*/
- ret = ath10k_pci_wake(ar);
- if (ret)
- return ret;
-
read_index = ath10k_ce_src_ring_read_index_get(ar, ctrl_addr);
if (read_index == 0xffffffff)
return -ENODEV;
read_index &= nentries_mask;
src_ring->hw_index = read_index;
-
- ath10k_pci_sleep(ar);
}
read_index = src_ring->hw_index;
@@ -731,11 +727,6 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
u32 ctrl_addr = ce_state->ctrl_addr;
- int ret;
-
- ret = ath10k_pci_wake(ar);
- if (ret)
- return;
spin_lock_bh(&ar_pci->ce_lock);
@@ -760,7 +751,6 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
ath10k_ce_engine_int_status_clear(ar, ctrl_addr, CE_WATERMARK_MASK);
spin_unlock_bh(&ar_pci->ce_lock);
- ath10k_pci_sleep(ar);
}
/*
@@ -771,13 +761,9 @@ void ath10k_ce_per_engine_service(struct ath10k *ar, unsigned int ce_id)
void ath10k_ce_per_engine_service_any(struct ath10k *ar)
{
- int ce_id, ret;
+ int ce_id;
u32 intr_summary;
- ret = ath10k_pci_wake(ar);
- if (ret)
- return;
-
intr_summary = CE_INTERRUPT_SUMMARY(ar);
for (ce_id = 0; intr_summary && (ce_id < CE_COUNT); ce_id++) {
@@ -789,8 +775,6 @@ void ath10k_ce_per_engine_service_any(struct ath10k *ar)
ath10k_ce_per_engine_service(ar, ce_id);
}
-
- ath10k_pci_sleep(ar);
}
/*
@@ -800,16 +784,11 @@ void ath10k_ce_per_engine_service_any(struct ath10k *ar)
*
* Called with ce_lock held.
*/
-static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
- int disable_copy_compl_intr)
+static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state)
{
u32 ctrl_addr = ce_state->ctrl_addr;
struct ath10k *ar = ce_state->ar;
- int ret;
-
- ret = ath10k_pci_wake(ar);
- if (ret)
- return;
+ bool disable_copy_compl_intr = ce_state->attr_flags & CE_ATTR_DIS_INTR;
if ((!disable_copy_compl_intr) &&
(ce_state->send_cb || ce_state->recv_cb))
@@ -818,17 +797,11 @@ static void ath10k_ce_per_engine_handler_adjust(struct ath10k_ce_pipe *ce_state,
ath10k_ce_copy_complete_intr_disable(ar, ctrl_addr);
ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
-
- ath10k_pci_sleep(ar);
}
int ath10k_ce_disable_interrupts(struct ath10k *ar)
{
- int ce_id, ret;
-
- ret = ath10k_pci_wake(ar);
- if (ret)
- return ret;
+ int ce_id;
for (ce_id = 0; ce_id < CE_COUNT; ce_id++) {
u32 ctrl_addr = ath10k_ce_base_address(ce_id);
@@ -838,34 +811,16 @@ int ath10k_ce_disable_interrupts(struct ath10k *ar)
ath10k_ce_watermark_intr_disable(ar, ctrl_addr);
}
- ath10k_pci_sleep(ar);
-
return 0;
}
-void ath10k_ce_send_cb_register(struct ath10k_ce_pipe *ce_state,
- void (*send_cb)(struct ath10k_ce_pipe *),
- int disable_interrupts)
+void ath10k_ce_enable_interrupts(struct ath10k *ar)
{
- struct ath10k *ar = ce_state->ar;
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+ int ce_id;
- spin_lock_bh(&ar_pci->ce_lock);
- ce_state->send_cb = send_cb;
- ath10k_ce_per_engine_handler_adjust(ce_state, disable_interrupts);
- spin_unlock_bh(&ar_pci->ce_lock);
-}
-
-void ath10k_ce_recv_cb_register(struct ath10k_ce_pipe *ce_state,
- void (*recv_cb)(struct ath10k_ce_pipe *))
-{
- struct ath10k *ar = ce_state->ar;
- struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
-
- spin_lock_bh(&ar_pci->ce_lock);
- ce_state->recv_cb = recv_cb;
- ath10k_ce_per_engine_handler_adjust(ce_state, 0);
- spin_unlock_bh(&ar_pci->ce_lock);
+ for (ce_id = 0; ce_id < CE_COUNT; ce_id++)
+ ath10k_ce_per_engine_handler_adjust(&ar_pci->ce_states[ce_id]);
}
static int ath10k_ce_init_src_ring(struct ath10k *ar,
@@ -898,7 +853,7 @@ static int ath10k_ce_init_src_ring(struct ath10k *ar,
ath10k_ce_src_ring_lowmark_set(ar, ctrl_addr, 0);
ath10k_ce_src_ring_highmark_set(ar, ctrl_addr, nentries);
- ath10k_dbg(ATH10K_DBG_BOOT,
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot init ce src ring id %d entries %d base_addr %p\n",
ce_id, nentries, src_ring->base_addr_owner_space);
@@ -932,7 +887,7 @@ static int ath10k_ce_init_dest_ring(struct ath10k *ar,
ath10k_ce_dest_ring_lowmark_set(ar, ctrl_addr, 0);
ath10k_ce_dest_ring_highmark_set(ar, ctrl_addr, nentries);
- ath10k_dbg(ATH10K_DBG_BOOT,
+ ath10k_dbg(ar, ATH10K_DBG_BOOT,
"boot ce dest ring id %d entries %d base_addr %p\n",
ce_id, nentries, dest_ring->base_addr_owner_space);
@@ -1067,7 +1022,9 @@ ath10k_ce_alloc_dest_ring(struct ath10k *ar, unsigned int ce_id,
* initialized by software/firmware.
*/
int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
- const struct ce_attr *attr)
+ const struct ce_attr *attr,
+ void (*send_cb)(struct ath10k_ce_pipe *),
+ void (*recv_cb)(struct ath10k_ce_pipe *))
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
struct ath10k_ce_pipe *ce_state = &ar_pci->ce_states[ce_id];
@@ -1084,39 +1041,37 @@ int ath10k_ce_init_pipe(struct ath10k *ar, unsigned int ce_id,
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;
+ if (attr->src_nentries)
+ ce_state->send_cb = send_cb;
+ if (attr->dest_nentries)
+ ce_state->recv_cb = recv_cb;
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",
+ ath10k_err(ar, "Failed to initialize CE src ring for ID: %d (%d)\n",
ce_id, ret);
- goto out;
+ return ret;
}
}
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",
+ ath10k_err(ar, "Failed to initialize CE dest ring for ID: %d (%d)\n",
ce_id, ret);
- goto out;
+ return ret;
}
}
-out:
- ath10k_pci_sleep(ar);
- return ret;
+ return 0;
}
static void ath10k_ce_deinit_src_ring(struct ath10k *ar, unsigned int ce_id)
@@ -1140,16 +1095,8 @@ static void ath10k_ce_deinit_dest_ring(struct ath10k *ar, unsigned int ce_id)
void ath10k_ce_deinit_pipe(struct ath10k *ar, unsigned int ce_id)
{
- int ret;
-
- ret = ath10k_pci_wake(ar);
- if (ret)
- return;
-
ath10k_ce_deinit_src_ring(ar, ce_id);
ath10k_ce_deinit_dest_ring(ar, ce_id);
-
- ath10k_pci_sleep(ar);
}
int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
@@ -1163,7 +1110,7 @@ int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
ce_state->src_ring = ath10k_ce_alloc_src_ring(ar, ce_id, attr);
if (IS_ERR(ce_state->src_ring)) {
ret = PTR_ERR(ce_state->src_ring);
- ath10k_err("failed to allocate copy engine source ring %d: %d\n",
+ ath10k_err(ar, "failed to allocate copy engine source ring %d: %d\n",
ce_id, ret);
ce_state->src_ring = NULL;
return ret;
@@ -1175,7 +1122,7 @@ int ath10k_ce_alloc_pipe(struct ath10k *ar, int ce_id,
attr);
if (IS_ERR(ce_state->dest_ring)) {
ret = PTR_ERR(ce_state->dest_ring);
- ath10k_err("failed to allocate copy engine destination ring %d: %d\n",
+ ath10k_err(ar, "failed to allocate copy engine destination ring %d: %d\n",
ce_id, ret);
ce_state->dest_ring = NULL;
return ret;