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| author |   Olof Johansson <olof@lixom.net> | 2007-10-02 16:25:53 -0500 |
|---|---|---|
| committer |   David S. Miller <davem@sunset.davemloft.net> | 2007-10-10 16:54:23 -0700 |
| commit | fc9e4d2a93dab4a995e2e75725577b9a60154cbc (patch) | |
| tree | efa9ce615e57fdb4bb94d0920daf04a26b30c4ed /drivers/net/pasemi_mac.h | |
| parent | pasemi_mac: fix bug in receive buffer dma mapping (diff) | |
| download | linux-dev-fc9e4d2a93dab4a995e2e75725577b9a60154cbc.tar.xz linux-dev-fc9e4d2a93dab4a995e2e75725577b9a60154cbc.zip | |
pasemi_mac: rework ring management
pasemi_mac: rework ring management
Rework ring management, switching to an opaque ring format instead of
the struct-based descriptor+pointer setup, since it will be needed for
SG support.
Signed-off-by: Olof Johansson <olof@lixom.net>
Signed-off-by: Jeff Garzik <jeff@garzik.org>
Diffstat (limited to 'drivers/net/pasemi_mac.h')
| -rw-r--r-- | drivers/net/pasemi_mac.h | 23 |
1 files changed, 5 insertions, 18 deletions
diff --git a/drivers/net/pasemi_mac.h b/drivers/net/pasemi_mac.h index c52cfcb6c4ca..5a896aa87a99 100644 --- a/drivers/net/pasemi_mac.h +++ b/drivers/net/pasemi_mac.h @@ -28,25 +28,25 @@ struct pasemi_mac_txring { spinlock_t lock; - struct pas_dma_xct_descr *desc; + u64 *ring; dma_addr_t dma; unsigned int size; unsigned int next_to_fill; unsigned int next_to_clean; - struct pasemi_mac_buffer *desc_info; + struct pasemi_mac_buffer *ring_info; char irq_name[10]; /* "eth%d tx" */ }; struct pasemi_mac_rxring { spinlock_t lock; - struct pas_dma_xct_descr *desc; /* RX channel descriptor ring */ + u64 *ring; /* RX channel descriptor ring */ dma_addr_t dma; u64 *buffers; /* RX interface buffer ring */ dma_addr_t buf_dma; unsigned int size; unsigned int next_to_fill; unsigned int next_to_clean; - struct pasemi_mac_buffer *desc_info; + struct pasemi_mac_buffer *ring_info; char irq_name[10]; /* "eth%d rx" */ }; @@ -88,7 +88,7 @@ struct pasemi_mac { char phy_id[BUS_ID_SIZE]; }; -/* Software status descriptor (desc_info) */ +/* Software status descriptor (ring_info) */ struct pasemi_mac_buffer { struct sk_buff *skb; dma_addr_t dma; @@ -101,20 +101,7 @@ struct pasdma_status { u64 tx_sta[20]; }; -/* descriptor structure */ -struct pas_dma_xct_descr { - union { - u64 mactx; - u64 macrx; - }; - union { - u64 ptr; - u64 rxb; - }; -}; - /* MAC CFG register offsets */ - enum { PAS_MAC_CFG_PCFG = 0x80, PAS_MAC_CFG_TXP = 0x98, |