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path: root/drivers/net/sfc/net_driver.h
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Diffstat (limited to 'drivers/net/sfc/net_driver.h')
-rw-r--r--drivers/net/sfc/net_driver.h13
1 files changed, 10 insertions, 3 deletions
diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h
index cfc65f5a3c09..ac622ab72e11 100644
--- a/drivers/net/sfc/net_driver.h
+++ b/drivers/net/sfc/net_driver.h
@@ -137,6 +137,7 @@ struct efx_tx_buffer {
* @channel: The associated channel
* @buffer: The software buffer ring
* @txd: The hardware descriptor ring
+ * @ptr_mask: The size of the ring minus 1.
* @flushed: Used when handling queue flushing
* @read_count: Current read pointer.
* This is the number of buffers that have been removed from both rings.
@@ -170,6 +171,7 @@ struct efx_tx_queue {
struct efx_nic *nic;
struct efx_tx_buffer *buffer;
struct efx_special_buffer txd;
+ unsigned int ptr_mask;
enum efx_flush_state flushed;
/* Members used mainly on the completion path */
@@ -227,6 +229,7 @@ struct efx_rx_page_state {
* @efx: The associated Efx NIC
* @buffer: The software buffer ring
* @rxd: The hardware descriptor ring
+ * @ptr_mask: The size of the ring minus 1.
* @added_count: Number of buffers added to the receive queue.
* @notified_count: Number of buffers given to NIC (<= @added_count).
* @removed_count: Number of buffers removed from the receive queue.
@@ -238,9 +241,6 @@ struct efx_rx_page_state {
* @min_fill: RX descriptor minimum non-zero fill level.
* This records the minimum fill level observed when a ring
* refill was triggered.
- * @min_overfill: RX descriptor minimum overflow fill level.
- * This records the minimum fill level at which RX queue
- * overflow was observed. It should never be set.
* @alloc_page_count: RX allocation strategy counter.
* @alloc_skb_count: RX allocation strategy counter.
* @slow_fill: Timer used to defer efx_nic_generate_fill_event().
@@ -250,6 +250,7 @@ struct efx_rx_queue {
struct efx_nic *efx;
struct efx_rx_buffer *buffer;
struct efx_special_buffer rxd;
+ unsigned int ptr_mask;
int added_count;
int notified_count;
@@ -307,6 +308,7 @@ enum efx_rx_alloc_method {
* @reset_work: Scheduled reset work thread
* @work_pending: Is work pending via NAPI?
* @eventq: Event queue buffer
+ * @eventq_mask: Event queue pointer mask
* @eventq_read_ptr: Event queue read pointer
* @last_eventq_read_ptr: Last event queue read pointer value.
* @magic_count: Event queue test event count
@@ -339,6 +341,7 @@ struct efx_channel {
struct napi_struct napi_str;
bool work_pending;
struct efx_special_buffer eventq;
+ unsigned int eventq_mask;
unsigned int eventq_read_ptr;
unsigned int last_eventq_read_ptr;
unsigned int magic_count;
@@ -641,6 +644,8 @@ union efx_multicast_hash {
* @tx_queue: TX DMA queues
* @rx_queue: RX DMA queues
* @channel: Channels
+ * @rxq_entries: Size of receive queues requested by user.
+ * @txq_entries: Size of transmit queues requested by user.
* @next_buffer_table: First available buffer table id
* @n_channels: Number of channels in use
* @n_rx_channels: Number of channels used for RX (= number of RX queues)
@@ -726,6 +731,8 @@ struct efx_nic {
struct efx_channel *channel[EFX_MAX_CHANNELS];
+ unsigned rxq_entries;
+ unsigned txq_entries;
unsigned next_buffer_table;
unsigned n_channels;
unsigned n_rx_channels;