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authorLendacky, Thomas <Thomas.Lendacky@amd.com>2015-01-16 12:46:50 -0600
committerDavid S. Miller <davem@davemloft.net>2015-01-16 22:24:20 -0500
commit270894e7dc7afad8fb79592fe02aa05e604ddfc8 (patch)
treea78dafeccd2e57f9734088afea99145b61874c58 /drivers/net/ethernet/amd/xgbe/xgbe.h
parent916102c6664dcfc11f76ab1da27882aee1d01d8c (diff)
downloadlinux-270894e7dc7afad8fb79592fe02aa05e604ddfc8.tar.bz2
amd-xgbe: Simplify the Rx desciptor ring tracking
Make the Rx descriptor ring processing similar to the Tx descriptor ring processing. Remove the realloc_index and realloc_threshold variables and base everything on the current index counter and the dirty index counter. Signed-off-by: Tom Lendacky <thomas.lendacky@amd.com> Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/amd/xgbe/xgbe.h')
-rw-r--r--drivers/net/ethernet/amd/xgbe/xgbe.h11
1 files changed, 3 insertions, 8 deletions
diff --git a/drivers/net/ethernet/amd/xgbe/xgbe.h b/drivers/net/ethernet/amd/xgbe/xgbe.h
index 2af6affc35a7..e6ee64e1d6ec 100644
--- a/drivers/net/ethernet/amd/xgbe/xgbe.h
+++ b/drivers/net/ethernet/amd/xgbe/xgbe.h
@@ -361,8 +361,7 @@ struct xgbe_ring {
* cur - Tx: index of descriptor to be used for current transfer
* Rx: index of descriptor to check for packet availability
* dirty - Tx: index of descriptor to check for transfer complete
- * Rx: count of descriptors in which a packet has been received
- * (used with skb_realloc_index to refresh the ring)
+ * Rx: index of descriptor to check for buffer reallocation
*/
unsigned int cur;
unsigned int dirty;
@@ -377,11 +376,6 @@ struct xgbe_ring {
unsigned short cur_mss;
unsigned short cur_vlan_ctag;
} tx;
-
- struct {
- unsigned int realloc_index;
- unsigned int realloc_threshold;
- } rx;
};
} ____cacheline_aligned;
@@ -596,7 +590,8 @@ struct xgbe_desc_if {
int (*alloc_ring_resources)(struct xgbe_prv_data *);
void (*free_ring_resources)(struct xgbe_prv_data *);
int (*map_tx_skb)(struct xgbe_channel *, struct sk_buff *);
- void (*realloc_rx_buffer)(struct xgbe_channel *);
+ int (*map_rx_buffer)(struct xgbe_prv_data *, struct xgbe_ring *,
+ struct xgbe_ring_data *);
void (*unmap_rdata)(struct xgbe_prv_data *, struct xgbe_ring_data *);
void (*wrapper_tx_desc_init)(struct xgbe_prv_data *);
void (*wrapper_rx_desc_init)(struct xgbe_prv_data *);