From 9bbd7d9a3528de1b5b915fa77df027b4de62174c Mon Sep 17 00:00:00 2001 From: Ben Hutchings Date: Fri, 16 May 2008 21:18:48 +0100 Subject: [PATCH] sfc: Use DMA_BIT_MASK() instead of our own DMA mask macros Also change type of efx_nic_type::max_dma_mask to u64, matching pci_dma_supported() parameter type. Signed-off-by: Ben Hutchings Signed-off-by: Jeff Garzik --- drivers/net/sfc/bitfield.h | 3 --- drivers/net/sfc/falcon.c | 13 ++----------- drivers/net/sfc/net_driver.h | 2 +- 3 files changed, 3 insertions(+), 15 deletions(-) diff --git a/drivers/net/sfc/bitfield.h b/drivers/net/sfc/bitfield.h index c98a591bd8..2c79d27404 100644 --- a/drivers/net/sfc/bitfield.h +++ b/drivers/net/sfc/bitfield.h @@ -501,8 +501,5 @@ typedef union efx_oword { #define DMA_ADDR_T_WIDTH (8 * sizeof(dma_addr_t)) #define EFX_DMA_TYPE_WIDTH(width) \ (((width) < DMA_ADDR_T_WIDTH) ? (width) : DMA_ADDR_T_WIDTH) -#define EFX_DMA_MAX_MASK ((DMA_ADDR_T_WIDTH == 64) ? \ - ~((u64) 0) : ~((u32) 0)) -#define EFX_DMA_MASK(mask) ((mask) & EFX_DMA_MAX_MASK) #endif /* EFX_BITFIELD_H */ diff --git a/drivers/net/sfc/falcon.c b/drivers/net/sfc/falcon.c index e02f1d1728..475b596383 100644 --- a/drivers/net/sfc/falcon.c +++ b/drivers/net/sfc/falcon.c @@ -116,17 +116,8 @@ MODULE_PARM_DESC(rx_xon_thresh_bytes, "RX fifo XON threshold"); ************************************************************************** */ -/* DMA address mask (up to 46-bit, avoiding compiler warnings) - * - * Note that it is possible to have a platform with 64-bit longs and - * 32-bit DMA addresses, or vice versa. EFX_DMA_MASK takes care of the - * platform DMA mask. - */ -#if BITS_PER_LONG == 64 -#define FALCON_DMA_MASK EFX_DMA_MASK(0x00003fffffffffffUL) -#else -#define FALCON_DMA_MASK EFX_DMA_MASK(0x00003fffffffffffULL) -#endif +/* DMA address mask */ +#define FALCON_DMA_MASK DMA_BIT_MASK(46) /* TX DMA length mask (13-bit) */ #define FALCON_TX_DMA_MASK (4096 - 1) diff --git a/drivers/net/sfc/net_driver.h b/drivers/net/sfc/net_driver.h index a84f9756ca..77418aed9a 100644 --- a/drivers/net/sfc/net_driver.h +++ b/drivers/net/sfc/net_driver.h @@ -800,7 +800,7 @@ struct efx_nic_type { unsigned int txd_ring_mask; unsigned int rxd_ring_mask; unsigned int evq_size; - dma_addr_t max_dma_mask; + u64 max_dma_mask; unsigned int tx_dma_mask; unsigned bug5391_mask; -- 2.39.5