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i40e: Move i40e_get_head into header file

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i40e_get_head needs to be called in multiple files in a further patch,
prepare by moving the function into a header file.

Signed-off-by: Kiran Patil <kiran.patil@intel.com>
Tested-by: Andrew Bowers <andrewx.bowers@intel.com>
Signed-off-by: Jeff Kirsher <jeffrey.t.kirsher@intel.com>
This commit is contained in:
Kiran Patil 2015-09-24 15:43:02 -04:00 committed by Jeff Kirsher
parent 34c2d9fb04
commit 1e6d6f8c1b
2 changed files with 14 additions and 13 deletions
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13
drivers/net/ethernet/intel/i40e/i40e_txrx.c
View File

@ -600,19 +600,6 @@ void i40e_free_tx_resources(struct i40e_ring *tx_ring)
}
}
/**
* i40e_get_head - Retrieve head from head writeback
* @tx_ring: tx ring to fetch head of
*
* Returns value of Tx ring head based on value stored
* in head write-back location
**/
static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
{
void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
return le32_to_cpu(*(volatile __le32 *)head);
}
/**
* i40e_get_tx_pending - how many tx descriptors not processed

14
drivers/net/ethernet/intel/i40e/i40e_txrx.h
View File

@ -326,4 +326,18 @@ int i40e_xmit_descriptor_count(struct sk_buff *skb, struct i40e_ring *tx_ring);
int i40e_tx_prepare_vlan_flags(struct sk_buff *skb,
struct i40e_ring *tx_ring, u32 *flags);
#endif
/**
* i40e_get_head - Retrieve head from head writeback
* @tx_ring: tx ring to fetch head of
*
* Returns value of Tx ring head based on value stored
* in head write-back location
**/
static inline u32 i40e_get_head(struct i40e_ring *tx_ring)
{
void *head = (struct i40e_tx_desc *)tx_ring->desc + tx_ring->count;
return le32_to_cpu(*(volatile __le32 *)head);
}
#endif /* _I40E_TXRX_H_ */