diff options
| author |   Claudiu Manoil <claudiu.manoil@freescale.com> | 2015-03-13 10:36:28 +0200 |
|---|---|---|
| committer |   David S. Miller <davem@davemloft.net> | 2015-03-15 19:56:46 -0400 |
| commit | a7312d5803759c29c7f341428858d353caabf793 (patch) | |
| tree | 551d07db14df3d6f618b943285d3248d13397075 /drivers/net/ethernet/freescale/gianfar.h | |
| parent | Merge branch 'rhashtable-next' (diff) | |
| download | linux-dev-a7312d5803759c29c7f341428858d353caabf793.tar.xz linux-dev-a7312d5803759c29c7f341428858d353caabf793.zip | |
gianfar: Make BDs access endian safe
Use conversion macros to correctly access the BE
fields of the Rx and Tx Buffer Descriptors on LE CPUs.
Signed-off-by: Claudiu Manoil <claudiu.manoil@freescale.com>
Signed-off-by: David S. Miller <davem@davemloft.net>
Diffstat (limited to 'drivers/net/ethernet/freescale/gianfar.h')
| -rw-r--r-- | drivers/net/ethernet/freescale/gianfar.h | 24 |
1 files changed, 16 insertions, 8 deletions
diff --git a/drivers/net/ethernet/freescale/gianfar.h b/drivers/net/ethernet/freescale/gianfar.h index 9e1802400c23..f792c7952f32 100644 --- a/drivers/net/ethernet/freescale/gianfar.h +++ b/drivers/net/ethernet/freescale/gianfar.h @@ -544,12 +544,12 @@ struct txbd8 { union { struct { - u16 status; /* Status Fields */ - u16 length; /* Buffer length */ + __be16 status; /* Status Fields */ + __be16 length; /* Buffer length */ }; - u32 lstatus; + __be32 lstatus; }; - u32 bufPtr; /* Buffer Pointer */ + __be32 bufPtr; /* Buffer Pointer */ }; struct txfcb { @@ -565,12 +565,12 @@ struct rxbd8 { union { struct { - u16 status; /* Status Fields */ - u16 length; /* Buffer Length */ + __be16 status; /* Status Fields */ + __be16 length; /* Buffer Length */ }; - u32 lstatus; + __be32 lstatus; }; - u32 bufPtr; /* Buffer Pointer */ + __be32 bufPtr; /* Buffer Pointer */ }; struct rxfcb { @@ -1287,6 +1287,14 @@ static inline void gfar_wmb(void) #endif } +static inline void gfar_clear_txbd_status(struct txbd8 *bdp) +{ + u32 lstatus = be32_to_cpu(bdp->lstatus); + + lstatus &= BD_LFLAG(TXBD_WRAP); + bdp->lstatus = cpu_to_be32(lstatus); +} + irqreturn_t gfar_receive(int irq, void *dev_id); int startup_gfar(struct net_device *dev); void stop_gfar(struct net_device *dev); |