diff options
Diffstat (limited to 'drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h')
| -rw-r--r-- | drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h | 49 |
1 files changed, 47 insertions, 2 deletions
diff --git a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h index 2bc421b43a91..1d80515c1dbf 100644 --- a/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h +++ b/drivers/net/wireless/iwlwifi/iwl-trans-int-pcie.h @@ -33,18 +33,63 @@ * trans_pcie layer */ /** + * struct iwl_rx_queue - Rx queue + * @bd: driver's pointer to buffer of receive buffer descriptors (rbd) + * @bd_dma: bus address of buffer of receive buffer descriptors (rbd) + * @pool: + * @queue: + * @read: Shared index to newest available Rx buffer + * @write: Shared index to oldest written Rx packet + * @free_count: Number of pre-allocated buffers in rx_free + * @write_actual: + * @rx_free: list of free SKBs for use + * @rx_used: List of Rx buffers with no SKB + * @need_update: flag to indicate we need to update read/write index + * @rb_stts: driver's pointer to receive buffer status + * @rb_stts_dma: bus address of receive buffer status + * @lock: + * + * NOTE: rx_free and rx_used are used as a FIFO for iwl_rx_mem_buffers + */ +struct iwl_rx_queue { + __le32 *bd; + dma_addr_t bd_dma; + struct iwl_rx_mem_buffer pool[RX_QUEUE_SIZE + RX_FREE_BUFFERS]; + struct iwl_rx_mem_buffer *queue[RX_QUEUE_SIZE]; + u32 read; + u32 write; + u32 free_count; + u32 write_actual; + struct list_head rx_free; + struct list_head rx_used; + int need_update; + struct iwl_rb_status *rb_stts; + dma_addr_t rb_stts_dma; + spinlock_t lock; +}; + +/** * struct iwl_trans_pcie - PCIe transport specific data + * @rxq: all the RX queue data + * @rx_replenish: work that will be called when buffers need to be allocated + * @trans: pointer to the generic transport area */ struct iwl_trans_pcie { + struct iwl_rx_queue rxq; + struct work_struct rx_replenish; + struct iwl_trans *trans; }; +#define IWL_TRANS_GET_PCIE_TRANS(_iwl_trans) \ + ((struct iwl_trans_pcie *) ((_iwl_trans)->trans_specific)) + /***************************************************** * RX ******************************************************/ void iwl_bg_rx_replenish(struct work_struct *data); void iwl_irq_tasklet(struct iwl_priv *priv); -void iwlagn_rx_replenish(struct iwl_priv *priv); -void iwl_rx_queue_update_write_ptr(struct iwl_priv *priv, +void iwlagn_rx_replenish(struct iwl_trans *trans); +void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans, struct iwl_rx_queue *q); /***************************************************** |