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path: root/drivers/net/wireless/ath/ath10k/pci.c
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Diffstat (limited to 'drivers/net/wireless/ath/ath10k/pci.c')
-rw-r--r--drivers/net/wireless/ath/ath10k/pci.c106
1 files changed, 78 insertions, 28 deletions
diff --git a/drivers/net/wireless/ath/ath10k/pci.c b/drivers/net/wireless/ath/ath10k/pci.c
index b3cff1d3364a..0b305efe6c94 100644
--- a/drivers/net/wireless/ath/ath10k/pci.c
+++ b/drivers/net/wireless/ath/ath10k/pci.c
@@ -809,7 +809,8 @@ static void ath10k_pci_rx_post_pipe(struct ath10k_pci_pipe *pipe)
spin_lock_bh(&ar_pci->ce_lock);
num = __ath10k_ce_rx_num_free_bufs(ce_pipe);
spin_unlock_bh(&ar_pci->ce_lock);
- while (num--) {
+
+ while (num >= 0) {
ret = __ath10k_pci_rx_post_buf(pipe);
if (ret) {
if (ret == -ENOSPC)
@@ -819,6 +820,7 @@ static void ath10k_pci_rx_post_pipe(struct ath10k_pci_pipe *pipe)
ATH10K_PCI_RX_POST_RETRY_MS);
break;
}
+ num--;
}
}
@@ -870,10 +872,8 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
int ret = 0;
- u32 buf;
+ u32 *buf;
unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
- unsigned int id;
- unsigned int flags;
struct ath10k_ce_pipe *ce_diag;
/* Host buffer address in CE space */
u32 ce_data;
@@ -909,7 +909,7 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
nbytes = min_t(unsigned int, remaining_bytes,
DIAG_TRANSFER_LIMIT);
- ret = __ath10k_ce_rx_post_buf(ce_diag, NULL, ce_data);
+ ret = __ath10k_ce_rx_post_buf(ce_diag, &ce_data, ce_data);
if (ret != 0)
goto done;
@@ -940,9 +940,10 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
}
i = 0;
- while (ath10k_ce_completed_recv_next_nolock(ce_diag, NULL, &buf,
- &completed_nbytes,
- &id, &flags) != 0) {
+ while (ath10k_ce_completed_recv_next_nolock(ce_diag,
+ (void **)&buf,
+ &completed_nbytes)
+ != 0) {
mdelay(1);
if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
@@ -956,7 +957,7 @@ static int ath10k_pci_diag_read_mem(struct ath10k *ar, u32 address, void *data,
goto done;
}
- if (buf != ce_data) {
+ if (*buf != ce_data) {
ret = -EIO;
goto done;
}
@@ -1026,10 +1027,8 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
{
struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
int ret = 0;
- u32 buf;
+ u32 *buf;
unsigned int completed_nbytes, orig_nbytes, remaining_bytes;
- unsigned int id;
- unsigned int flags;
struct ath10k_ce_pipe *ce_diag;
void *data_buf = NULL;
u32 ce_data; /* Host buffer address in CE space */
@@ -1078,7 +1077,7 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
nbytes = min_t(int, remaining_bytes, DIAG_TRANSFER_LIMIT);
/* Set up to receive directly into Target(!) address */
- ret = __ath10k_ce_rx_post_buf(ce_diag, NULL, address);
+ ret = __ath10k_ce_rx_post_buf(ce_diag, &address, address);
if (ret != 0)
goto done;
@@ -1103,9 +1102,10 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
}
i = 0;
- while (ath10k_ce_completed_recv_next_nolock(ce_diag, NULL, &buf,
- &completed_nbytes,
- &id, &flags) != 0) {
+ while (ath10k_ce_completed_recv_next_nolock(ce_diag,
+ (void **)&buf,
+ &completed_nbytes)
+ != 0) {
mdelay(1);
if (i++ > DIAG_ACCESS_CE_TIMEOUT_MS) {
@@ -1119,7 +1119,7 @@ int ath10k_pci_diag_write_mem(struct ath10k *ar, u32 address,
goto done;
}
- if (buf != address) {
+ if (*buf != address) {
ret = -EIO;
goto done;
}
@@ -1181,15 +1181,11 @@ static void ath10k_pci_process_rx_cb(struct ath10k_ce_pipe *ce_state,
struct sk_buff *skb;
struct sk_buff_head list;
void *transfer_context;
- u32 ce_data;
unsigned int nbytes, max_nbytes;
- unsigned int transfer_id;
- unsigned int flags;
__skb_queue_head_init(&list);
while (ath10k_ce_completed_recv_next(ce_state, &transfer_context,
- &ce_data, &nbytes, &transfer_id,
- &flags) == 0) {
+ &nbytes) == 0) {
skb = transfer_context;
max_nbytes = skb->len + skb_tailroom(skb);
dma_unmap_single(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
@@ -1218,6 +1214,63 @@ static void ath10k_pci_process_rx_cb(struct ath10k_ce_pipe *ce_state,
ath10k_pci_rx_post_pipe(pipe_info);
}
+static void ath10k_pci_process_htt_rx_cb(struct ath10k_ce_pipe *ce_state,
+ void (*callback)(struct ath10k *ar,
+ struct sk_buff *skb))
+{
+ struct ath10k *ar = ce_state->ar;
+ struct ath10k_pci *ar_pci = ath10k_pci_priv(ar);
+ struct ath10k_pci_pipe *pipe_info = &ar_pci->pipe_info[ce_state->id];
+ struct ath10k_ce_pipe *ce_pipe = pipe_info->ce_hdl;
+ struct sk_buff *skb;
+ struct sk_buff_head list;
+ void *transfer_context;
+ unsigned int nbytes, max_nbytes, nentries;
+ int orig_len;
+
+ /* No need to aquire ce_lock for CE5, since this is the only place CE5
+ * is processed other than init and deinit. Before releasing CE5
+ * buffers, interrupts are disabled. Thus CE5 access is serialized.
+ */
+ __skb_queue_head_init(&list);
+ while (ath10k_ce_completed_recv_next_nolock(ce_state, &transfer_context,
+ &nbytes) == 0) {
+ skb = transfer_context;
+ max_nbytes = skb->len + skb_tailroom(skb);
+
+ if (unlikely(max_nbytes < nbytes)) {
+ ath10k_warn(ar, "rxed more than expected (nbytes %d, max %d)",
+ nbytes, max_nbytes);
+ continue;
+ }
+
+ dma_sync_single_for_cpu(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
+ max_nbytes, DMA_FROM_DEVICE);
+ skb_put(skb, nbytes);
+ __skb_queue_tail(&list, skb);
+ }
+
+ nentries = skb_queue_len(&list);
+ while ((skb = __skb_dequeue(&list))) {
+ ath10k_dbg(ar, ATH10K_DBG_PCI, "pci rx ce pipe %d len %d\n",
+ ce_state->id, skb->len);
+ ath10k_dbg_dump(ar, ATH10K_DBG_PCI_DUMP, NULL, "pci rx: ",
+ skb->data, skb->len);
+
+ orig_len = skb->len;
+ callback(ar, skb);
+ skb_push(skb, orig_len - skb->len);
+ skb_reset_tail_pointer(skb);
+ skb_trim(skb, 0);
+
+ /*let device gain the buffer again*/
+ dma_sync_single_for_device(ar->dev, ATH10K_SKB_RXCB(skb)->paddr,
+ skb->len + skb_tailroom(skb),
+ DMA_FROM_DEVICE);
+ }
+ ath10k_ce_rx_update_write_idx(ce_pipe, nentries);
+}
+
/* Called by lower (CE) layer when data is received from the Target. */
static void ath10k_pci_htc_rx_cb(struct ath10k_ce_pipe *ce_state)
{
@@ -1274,7 +1327,7 @@ static void ath10k_pci_htt_rx_cb(struct ath10k_ce_pipe *ce_state)
*/
ath10k_ce_per_engine_service(ce_state->ar, 4);
- ath10k_pci_process_rx_cb(ce_state, ath10k_pci_htt_rx_deliver);
+ ath10k_pci_process_htt_rx_cb(ce_state, ath10k_pci_htt_rx_deliver);
}
int ath10k_pci_hif_tx_sg(struct ath10k *ar, u8 pipe_id,
@@ -1835,13 +1888,10 @@ static void ath10k_pci_bmi_recv_data(struct ath10k_ce_pipe *ce_state)
{
struct ath10k *ar = ce_state->ar;
struct bmi_xfer *xfer;
- u32 ce_data;
unsigned int nbytes;
- unsigned int transfer_id;
- unsigned int flags;
- if (ath10k_ce_completed_recv_next(ce_state, (void **)&xfer, &ce_data,
- &nbytes, &transfer_id, &flags))
+ if (ath10k_ce_completed_recv_next(ce_state, (void **)&xfer,
+ &nbytes))
return;
if (WARN_ON_ONCE(!xfer))
generated by cgit v1.2.3-70-g09d2 (git 2.48.1) at 2025-04-15 11:30:46 +0000