diff options
Diffstat (limited to '')
| -rw-r--r-- | drivers/net/ipa/gsi.h | 21 |
1 files changed, 14 insertions, 7 deletions
diff --git a/drivers/net/ipa/gsi.h b/drivers/net/ipa/gsi.h index 88b80dc3db79..9cc657658811 100644 --- a/drivers/net/ipa/gsi.h +++ b/drivers/net/ipa/gsi.h @@ -101,6 +101,7 @@ enum gsi_channel_state { GSI_CHANNEL_STATE_STARTED = 0x2, GSI_CHANNEL_STATE_STOPPED = 0x3, GSI_CHANNEL_STATE_STOP_IN_PROC = 0x4, + GSI_CHANNEL_STATE_FLOW_CONTROLLED = 0x5, /* IPA v4.2-v4.9 */ GSI_CHANNEL_STATE_ERROR = 0xf, }; @@ -114,8 +115,6 @@ struct gsi_channel { u16 tre_count; u16 event_count; - struct completion completion; /* signals channel command completion */ - struct gsi_ring tre_ring; u32 evt_ring_id; @@ -141,28 +140,27 @@ enum gsi_evt_ring_state { struct gsi_evt_ring { struct gsi_channel *channel; - struct completion completion; /* signals event ring state changes */ struct gsi_ring ring; }; struct gsi { struct device *dev; /* Same as IPA device */ enum ipa_version version; - struct net_device dummy_dev; /* needed for NAPI */ void __iomem *virt_raw; /* I/O mapped address range */ void __iomem *virt; /* Adjusted for most registers */ u32 irq; u32 channel_count; u32 evt_ring_count; - struct gsi_channel channel[GSI_CHANNEL_COUNT_MAX]; - struct gsi_evt_ring evt_ring[GSI_EVT_RING_COUNT_MAX]; u32 event_bitmap; /* allocated event rings */ u32 modem_channel_bitmap; /* modem channels to allocate */ u32 type_enabled_bitmap; /* GSI IRQ types enabled */ u32 ieob_enabled_bitmap; /* IEOB IRQ enabled (event rings) */ - struct completion completion; /* for global EE commands */ int result; /* Negative errno (generic commands) */ + struct completion completion; /* Signals GSI command completion */ struct mutex mutex; /* protects commands, programming */ + struct gsi_channel channel[GSI_CHANNEL_COUNT_MAX]; + struct gsi_evt_ring evt_ring[GSI_EVT_RING_COUNT_MAX]; + struct net_device dummy_dev; /* needed for NAPI */ }; /** @@ -219,6 +217,15 @@ int gsi_channel_start(struct gsi *gsi, u32 channel_id); int gsi_channel_stop(struct gsi *gsi, u32 channel_id); /** + * gsi_modem_channel_flow_control() - Set channel flow control state (IPA v4.2+) + * @gsi: GSI pointer returned by gsi_setup() + * @channel_id: Modem TX channel to control + * @enable: Whether to enable flow control (i.e., prevent flow) + */ +void gsi_modem_channel_flow_control(struct gsi *gsi, u32 channel_id, + bool enable); + +/** * gsi_channel_reset() - Reset an allocated GSI channel * @gsi: GSI pointer * @channel_id: Channel to be reset |