On Mon, Oct 31, 2016 at 04:02:10PM +0800, Xinming Hu wrote:
> From: Shengzhen Li <szli@xxxxxxxxxxx>
>
> This patch will only allow downloading sleep confirm
> when no tx done interrupt is pending in the hardware.
>
> Signed-off-by: Cathy Luo <cluo@xxxxxxxxxxx>
> Signed-off-by: Shengzhen Li <szli@xxxxxxxxxxx>
>
> Change-Id: I6d6955b4a2de0ad791ca28f0f635d636a2c7e406
^^ Remove this
> ---
> drivers/net/wireless/marvell/mwifiex/cmdevt.c | 4 ++--
> drivers/net/wireless/marvell/mwifiex/init.c | 1 +
> drivers/net/wireless/marvell/mwifiex/main.h | 1 +
> drivers/net/wireless/marvell/mwifiex/pcie.c | 5 +++++
> 4 files changed, 9 insertions(+), 2 deletions(-)
>
> diff --git a/drivers/net/wireless/marvell/mwifiex/cmdevt.c b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
> index 9075be5..25a7475 100644
> --- a/drivers/net/wireless/marvell/mwifiex/cmdevt.c
> +++ b/drivers/net/wireless/marvell/mwifiex/cmdevt.c
> @@ -1118,14 +1118,14 @@ mwifiex_cancel_pending_ioctl(struct mwifiex_adapter *adapter)
> void
> mwifiex_check_ps_cond(struct mwifiex_adapter *adapter)
> {
> - if (!adapter->cmd_sent &&
> + if (!adapter->cmd_sent && !atomic_read(&adapter->tx_hw_pending) &&
How is this different from the following?
https://patchwork.kernel.org/patch/9389485/
And parituclarly, they conflict on this line, so you need to resolve
that somehow...
And if the linked patch serves the same purpose, then I'd rather take
it, since it's much simpler.
Brian
> !adapter->curr_cmd && !IS_CARD_RX_RCVD(adapter))
> mwifiex_dnld_sleep_confirm_cmd(adapter);
> else
> mwifiex_dbg(adapter, CMD,
> "cmd: Delay Sleep Confirm (%s%s%s%s)\n",
> (adapter->cmd_sent) ? "D" : "",
> - (adapter->data_sent) ? "T" : "",
> + atomic_read(&adapter->tx_hw_pending) ? "T" : "",
> (adapter->curr_cmd) ? "C" : "",
> (IS_CARD_RX_RCVD(adapter)) ? "R" : "");
> }
> diff --git a/drivers/net/wireless/marvell/mwifiex/init.c b/drivers/net/wireless/marvell/mwifiex/init.c
> index 82839d9..b36cb3f 100644
> --- a/drivers/net/wireless/marvell/mwifiex/init.c
> +++ b/drivers/net/wireless/marvell/mwifiex/init.c
> @@ -270,6 +270,7 @@ static void mwifiex_init_adapter(struct mwifiex_adapter *adapter)
> adapter->adhoc_11n_enabled = false;
>
> mwifiex_wmm_init(adapter);
> + atomic_set(&adapter->tx_hw_pending, 0);
>
> sleep_cfm_buf = (struct mwifiex_opt_sleep_confirm *)
> adapter->sleep_cfm->data;
> diff --git a/drivers/net/wireless/marvell/mwifiex/main.h b/drivers/net/wireless/marvell/mwifiex/main.h
> index d61fe3a..7f67f23 100644
> --- a/drivers/net/wireless/marvell/mwifiex/main.h
> +++ b/drivers/net/wireless/marvell/mwifiex/main.h
> @@ -857,6 +857,7 @@ struct mwifiex_adapter {
> atomic_t rx_pending;
> atomic_t tx_pending;
> atomic_t cmd_pending;
> + atomic_t tx_hw_pending;
> struct workqueue_struct *workqueue;
> struct work_struct main_work;
> struct workqueue_struct *rx_workqueue;
> diff --git a/drivers/net/wireless/marvell/mwifiex/pcie.c b/drivers/net/wireless/marvell/mwifiex/pcie.c
> index 063c707..4aa5d91 100644
> --- a/drivers/net/wireless/marvell/mwifiex/pcie.c
> +++ b/drivers/net/wireless/marvell/mwifiex/pcie.c
> @@ -516,6 +516,7 @@ static int mwifiex_pcie_enable_host_int(struct mwifiex_adapter *adapter)
> }
> }
>
> + atomic_set(&adapter->tx_hw_pending, 0);
> return 0;
> }
>
> @@ -689,6 +690,7 @@ static void mwifiex_cleanup_txq_ring(struct mwifiex_adapter *adapter)
> card->tx_buf_list[i] = NULL;
> }
>
> + atomic_set(&adapter->tx_hw_pending, 0);
> return;
> }
>
> @@ -1126,6 +1128,7 @@ static int mwifiex_pcie_send_data_complete(struct mwifiex_adapter *adapter)
> -1);
> else
> mwifiex_write_data_complete(adapter, skb, 0, 0);
> + atomic_dec(&adapter->tx_hw_pending);
> }
>
> card->tx_buf_list[wrdoneidx] = NULL;
> @@ -1218,6 +1221,7 @@ mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb,
> wrindx = (card->txbd_wrptr & reg->tx_mask) >> reg->tx_start_ptr;
> buf_pa = MWIFIEX_SKB_DMA_ADDR(skb);
> card->tx_buf_list[wrindx] = skb;
> + atomic_inc(&adapter->tx_hw_pending);
>
> if (reg->pfu_enabled) {
> desc2 = card->txbd_ring[wrindx];
> @@ -1295,6 +1299,7 @@ mwifiex_pcie_send_data(struct mwifiex_adapter *adapter, struct sk_buff *skb,
> done_unmap:
> mwifiex_unmap_pci_memory(adapter, skb, PCI_DMA_TODEVICE);
> card->tx_buf_list[wrindx] = NULL;
> + atomic_dec(&adapter->tx_hw_pending);
> if (reg->pfu_enabled)
> memset(desc2, 0, sizeof(*desc2));
> else
> --
> 1.8.1.4
>
