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iwlwifi: some clean up in transport layer 

Remove outdated iwlagn prefix to a few functions and fix comments
that were not accurate.

Signed-off-by: Emmanuel Grumbach <emmanuel.grumbach@intel.com>
Reviewed-by: Johannes Berg <johannes.berg@intel.com>
Signed-off-by: Johannes Berg <johannes.berg@intel.com>
This commit is contained in:
Emmanuel Grumbach 2012-09-09 16:39:18 +03:00 committed by Johannes Berg
parent 2d1c0044dd
commit 358a46d47e
3 changed files with 33 additions and 25 deletions
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2
drivers/net/wireless/iwlwifi/pcie/internal.h
View File

@ -311,7 +311,7 @@ void iwl_trans_pcie_free(struct iwl_trans *trans);
******************************************************/
void iwl_bg_rx_replenish(struct work_struct *data);
void iwl_irq_tasklet(struct iwl_trans *trans);
void iwlagn_rx_replenish(struct iwl_trans *trans);
void iwl_rx_replenish(struct iwl_trans *trans);
void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans,
struct iwl_rx_queue *q);

54
drivers/net/wireless/iwlwifi/pcie/rx.c
View File

@ -177,15 +177,15 @@ void iwl_rx_queue_update_write_ptr(struct iwl_trans *trans,
}
/**
* iwlagn_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
* iwl_dma_addr2rbd_ptr - convert a DMA address to a uCode read buffer ptr
*/
static inline __le32 iwlagn_dma_addr2rbd_ptr(dma_addr_t dma_addr)
static inline __le32 iwl_dma_addr2rbd_ptr(dma_addr_t dma_addr)
{
return cpu_to_le32((u32)(dma_addr >> 8));
}
/**
* iwlagn_rx_queue_restock - refill RX queue from pre-allocated pool
* iwl_rx_queue_restock - refill RX queue from pre-allocated pool
*
* If there are slots in the RX queue that need to be restocked,
* and we have free pre-allocated buffers, fill the ranks as much
@ -195,7 +195,7 @@ static inline __le32 iwlagn_dma_addr2rbd_ptr(dma_addr_t dma_addr)
* also updates the memory address in the firmware to reference the new
* target buffer.
*/
static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
static void iwl_rx_queue_restock(struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct iwl_rx_queue *rxq = &trans_pcie->rxq;
@ -215,7 +215,7 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
list_del(element);
/* Point to Rx buffer via next RBD in circular buffer */
rxq->bd[rxq->write] = iwlagn_dma_addr2rbd_ptr(rxb->page_dma);
rxq->bd[rxq->write] = iwl_dma_addr2rbd_ptr(rxb->page_dma);
rxq->queue[rxq->write] = rxb;
rxq->write = (rxq->write + 1) & RX_QUEUE_MASK;
rxq->free_count--;
@ -226,7 +226,6 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
if (rxq->free_count <= RX_LOW_WATERMARK)
schedule_work(&trans_pcie->rx_replenish);
/* If we've added more space for the firmware to place data, tell it.
* Increment device's write pointer in multiples of 8. */
if (rxq->write_actual != (rxq->write & ~0x7)) {
@ -237,15 +236,16 @@ static void iwlagn_rx_queue_restock(struct iwl_trans *trans)
}
}
/**
* iwlagn_rx_replenish - Move all used packet from rx_used to rx_free
/*
* iwl_rx_allocate - allocate a page for each used RBD
*
* When moving to rx_free an SKB is allocated for the slot.
*
* Also restock the Rx queue via iwl_rx_queue_restock.
* This is called as a scheduled work item (except for during initialization)
* A used RBD is an Rx buffer that has been given to the stack. To use it again
* a page must be allocated and the RBD must point to the page. This function
* doesn't change the HW pointer but handles the list of pages that is used by
* iwl_rx_queue_restock. The latter function will update the HW to use the newly
* allocated buffers.
*/
static void iwlagn_rx_allocate(struct iwl_trans *trans, gfp_t priority)
static void iwl_rx_allocate(struct iwl_trans *trans, gfp_t priority)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
struct iwl_rx_queue *rxq = &trans_pcie->rxq;
@ -324,23 +324,31 @@ static void iwlagn_rx_allocate(struct iwl_trans *trans, gfp_t priority)
}
}
void iwlagn_rx_replenish(struct iwl_trans *trans)
/*
* iwl_rx_replenish - Move all used buffers from rx_used to rx_free
*
* When moving to rx_free an page is allocated for the slot.
*
* Also restock the Rx queue via iwl_rx_queue_restock.
* This is called as a scheduled work item (except for during initialization)
*/
void iwl_rx_replenish(struct iwl_trans *trans)
{
struct iwl_trans_pcie *trans_pcie = IWL_TRANS_GET_PCIE_TRANS(trans);
unsigned long flags;
iwlagn_rx_allocate(trans, GFP_KERNEL);
iwl_rx_allocate(trans, GFP_KERNEL);
spin_lock_irqsave(&trans_pcie->irq_lock, flags);
iwlagn_rx_queue_restock(trans);
iwl_rx_queue_restock(trans);
spin_unlock_irqrestore(&trans_pcie->irq_lock, flags);
}
static void iwlagn_rx_replenish_now(struct iwl_trans *trans)
static void iwl_rx_replenish_now(struct iwl_trans *trans)
{
iwlagn_rx_allocate(trans, GFP_ATOMIC);
iwl_rx_allocate(trans, GFP_ATOMIC);
iwlagn_rx_queue_restock(trans);
iwl_rx_queue_restock(trans);
}
void iwl_bg_rx_replenish(struct work_struct *data)
@ -348,7 +356,7 @@ void iwl_bg_rx_replenish(struct work_struct *data)
struct iwl_trans_pcie *trans_pcie =
container_of(data, struct iwl_trans_pcie, rx_replenish);
iwlagn_rx_replenish(trans_pcie->trans);
iwl_rx_replenish(trans_pcie->trans);
}
static void iwl_rx_handle_rxbuf(struct iwl_trans *trans,
@ -526,7 +534,7 @@ static void iwl_rx_handle(struct iwl_trans *trans)
count++;
if (count >= 8) {
rxq->read = i;
iwlagn_rx_replenish_now(trans);
iwl_rx_replenish_now(trans);
count = 0;
}
}
@ -535,9 +543,9 @@ static void iwl_rx_handle(struct iwl_trans *trans)
/* Backtrack one entry */
rxq->read = i;
if (fill_rx)
iwlagn_rx_replenish_now(trans);
iwl_rx_replenish_now(trans);
else
iwlagn_rx_queue_restock(trans);
iwl_rx_queue_restock(trans);
}
/**

2
drivers/net/wireless/iwlwifi/pcie/trans.c
View File

@ -216,7 +216,7 @@ static int iwl_rx_init(struct iwl_trans *trans)
rxq->free_count = 0;
spin_unlock_irqrestore(&rxq->lock, flags);
iwlagn_rx_replenish(trans);
iwl_rx_replenish(trans);
iwl_trans_rx_hw_init(trans, rxq);