diff options
| author | Hariprasad Shenai <hariprasad@chelsio.com> | 2014-06-27 19:23:49 +0530 |
|---|---|---|
| committer | David S. Miller <davem@davemloft.net> | 2014-07-01 18:56:10 -0700 |
| commit | fc5ab020965067c457a4b5a9eb15648b6874bef2 (patch) | |
| tree | 3d1894fdec0cd7c92a114a169220df135c8ccfc6 /drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | |
| parent | 0abfd1524b655f00597d419c8e63d06ebf637372 (diff) | |
cxgb4: Replaced the backdoor mechanism to access the HW memory with PCIe Window method
Rip out a bunch of redundant PCI-E Memory Window Read/Write routines,
collapse the more general purpose routines into a single routine
thereby eliminating the need for a large stack frame (and extra data
copying) in the outer routine, change everything to use the improved
routine t4_memory_rw.
Based on origninal work by Casey Leedom <leedom@chelsio.com> and
Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Casey Leedom <leedom@chelsio.com>
Signed-off-by: Steve Wise <swise@opengridcomputing.com>
Signed-off-by: Hariprasad Shenai <hariprasad@chelsio.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/chelsio/cxgb4/t4_regs.h')
| -rw-r--r-- | drivers/net/ethernet/chelsio/cxgb4/t4_regs.h | 1 |
1 files changed, 1 insertions, 0 deletions
diff --git a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h index f6b2ee13e715..ae7776471ceb 100644 --- a/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h +++ b/drivers/net/ethernet/chelsio/cxgb4/t4_regs.h @@ -400,6 +400,7 @@ #define WINDOW_MASK 0x000000ffU #define WINDOW_SHIFT 0 #define WINDOW(x) ((x) << WINDOW_SHIFT) +#define GET_WINDOW(x) (((x) >> WINDOW_SHIFT) & WINDOW_MASK) #define PCIE_MEM_ACCESS_OFFSET 0x306c #define ENABLE (1U << 30) #define FUNCTION(x) ((x) << 12) |