diff options
author | wpaul <wpaul@FreeBSD.org> | 1999-06-19 20:17:38 +0000 |
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committer | wpaul <wpaul@FreeBSD.org> | 1999-06-19 20:17:38 +0000 |
commit | bf694850c4689290cec3f73afa21c3d54a733785 (patch) | |
tree | b5b94aab1c3a43010b6e31b634fbeef81ab6fae0 /sys/pci/if_rlreg.h | |
parent | ff773191969ea0eb35218ab5f90ca57d05cff015 (diff) | |
download | FreeBSD-src-bf694850c4689290cec3f73afa21c3d54a733785.zip FreeBSD-src-bf694850c4689290cec3f73afa21c3d54a733785.tar.gz |
Fix up the RealTek 8139 driver to work on FreeBSD/alpha. This involves a
few changes:
- there was a bug in rl_list_tx_init(): it was calculating the registers
to initialize incorrectly. Not a problem on the x86 where unaligned
access are allowed, but a problem on the alpha.
- set rl_btag accordingly depending on the machine type
- rl_rxeof() needs to be sure to longword-align the packet data. This
is a little tricky since we copy the data out of the receive buffer
using m_devget(), however there's no way to tell m_devget() to fill
in the mbufs starting at a particular offset. To get around this,
we tell m_devget to copy bytes+2 bytes starting at offset offset-2. This
results in the proper alignment, and we can trim off the two leading
bytes afterwards with m_adj(). We also allocate some extra space before
the start of the receive buffer so that we don't get into trouble in
the case where offset == 0.
- redefine vtophys() in if_rlreg.h for the alpha.
Making this chipset work on the alpha is sort of the inverse of putting
a jet engine on a rowboat (putting a propeller on a 747?) but when
you can get these things for $5 a pop, it's hard to stop people from
buying them.
Diffstat (limited to 'sys/pci/if_rlreg.h')
-rw-r--r-- | sys/pci/if_rlreg.h | 10 |
1 files changed, 9 insertions, 1 deletions
diff --git a/sys/pci/if_rlreg.h b/sys/pci/if_rlreg.h index ab0f302..53891cf 100644 --- a/sys/pci/if_rlreg.h +++ b/sys/pci/if_rlreg.h @@ -29,7 +29,7 @@ * ARISING IN ANY WAY OUT OF THE USE OF THIS SOFTWARE, EVEN IF ADVISED OF * THE POSSIBILITY OF SUCH DAMAGE. * - * $Id: if_rlreg.h,v 1.18 1999/05/30 18:48:01 wpaul Exp $ + * $Id: if_rlreg.h,v 1.19 1999/06/19 20:01:32 wpaul Exp wpaul $ */ /* @@ -307,9 +307,12 @@ #define RL_RXCFG_CONFIG (RL_RX_FIFOTHRESH|RL_RX_MAXDMA|RL_RX_BUF_SZ) #define RL_TXCFG_CONFIG (RL_TXCFG_IFG|RL_TX_MAXDMA) +#define RL_ETHER_ALIGN 2 + struct rl_chain_data { u_int16_t cur_rx; caddr_t rl_rx_buf; + caddr_t rl_rx_buf_ptr; struct mbuf *rl_tx_chain[RL_TX_LIST_CNT]; u_int8_t last_tx; @@ -608,3 +611,8 @@ struct rl_softc { #define PHY_BMSR_LINKSTAT 0x0004 #define PHY_BMSR_JABBER 0x0002 #define PHY_BMSR_EXTENDED 0x0001 +#ifdef __alpha__ +#undef vtophys +#define vtophys(va) alpha_XXX_dmamap((vm_offset_t)va) +#endif + |