diff options
| author | Damien Bergamini <damien@cvs.openbsd.org> | 2007-11-27 19:45:45 +0000 |
|---|---|---|
| committer | Damien Bergamini <damien@cvs.openbsd.org> | 2007-11-27 19:45:45 +0000 |
| commit | 0bd490a7872454d032e9220b8390edb9429a6d9a (patch) | |
| tree | d8ded5bd2324e0f00c7556fb46c1cf8eb297ebc4 /sys/dev/pci/if_iwnreg.h | |
| parent | 1d1e47fe5d9c6461b1b5b7d8de1bc21472d20e9e (diff) | |
fix DMA alignment constraints: rings must be aligned on a 256-byte
boundary, "keep warm" page must be aligned on a 4KB boundary.
make sure sc->shared->len[x][y] == sc->shared->len[x + 256][y] for
all x < 64.
Diffstat (limited to 'sys/dev/pci/if_iwnreg.h')
| -rw-r--r-- | sys/dev/pci/if_iwnreg.h | 7 |
1 files changed, 4 insertions, 3 deletions
diff --git a/sys/dev/pci/if_iwnreg.h b/sys/dev/pci/if_iwnreg.h index ccb49cc3e7e..7dba6b8ddf0 100644 --- a/sys/dev/pci/if_iwnreg.h +++ b/sys/dev/pci/if_iwnreg.h @@ -1,4 +1,4 @@ -/* $OpenBSD: if_iwnreg.h,v 1.7 2007/11/17 18:50:54 damien Exp $ */ +/* $OpenBSD: if_iwnreg.h,v 1.8 2007/11/27 19:45:44 damien Exp $ */ /*- * Copyright (c) 2007 @@ -24,9 +24,9 @@ #define IWN_NTXCHAINS 2 /* - * Rings must be aligned on a 16K boundary. + * Rings must be aligned on a 256-byte boundary. */ -#define IWN_RING_DMA_ALIGN 0x4000 +#define IWN_RING_DMA_ALIGN 256 /* maximum scatter/gather */ #define IWN_MAX_SCATTER 20 @@ -180,6 +180,7 @@ #define IWN_ENA_L1 (1 << 1) +#define IWN_TX_WINDOW 64 struct iwn_shared { uint16_t len[512][IWN_NTXQUEUES]; /* 16KB total */ uint16_t closed_count; |