diff options
| author | Nathan Binkert <nate@cvs.openbsd.org> | 2002-04-28 20:46:39 +0000 |
|---|---|---|
| committer | Nathan Binkert <nate@cvs.openbsd.org> | 2002-04-28 20:46:39 +0000 |
| commit | e08fb0ff38dd899f1f9cd46d1bf47cad4dbc6ca2 (patch) | |
| tree | 8730ec4e413f26044f085a2c9786f2585c5e35d2 /sys/dev | |
| parent | d25e405bd1346d7760d9b0e2678c4ddde2826e80 (diff) | |
Re-do the way that bus_dma is done for transmit. Loop over the dm_segs
instead of looping over the mbuf.
This fixes some problems seen related to IP fragments containing bogus
data in them.
Diffstat (limited to 'sys/dev')
| -rw-r--r-- | sys/dev/pci/if_gx.c | 12 |
1 files changed, 4 insertions, 8 deletions
diff --git a/sys/dev/pci/if_gx.c b/sys/dev/pci/if_gx.c index 4b8363d1755..8aede0e56ac 100644 --- a/sys/dev/pci/if_gx.c +++ b/sys/dev/pci/if_gx.c @@ -1,4 +1,4 @@ -/* $OpenBSD: if_gx.c,v 1.4 2002/04/26 04:36:38 nate Exp $ */ +/* $OpenBSD: if_gx.c,v 1.5 2002/04/28 20:46:38 nate Exp $ */ /*- * Copyright (c) 1999,2000,2001 Jonathan Lemon * All rights reserved. @@ -1710,7 +1710,6 @@ gx_encap(struct gx_softc *gx, struct mbuf *m_head) #ifdef notyet struct gx_tx_desc_ctx *tctx; #endif - struct mbuf *m; bus_dmamap_t txmap; int i = 0; int idx, cnt, /*csumopts, */ txcontext; @@ -1784,10 +1783,7 @@ context_done: if (bus_dmamap_load_mbuf(gx->gx_dmatag, txmap, m_head, BUS_DMA_NOWAIT)) return(ENOBUFS); - for (m = m_head; m != NULL; m = m->m_next) { - if (m->m_len == 0) - continue; - + for (i = 0; i < txmap->dm_nsegs; i++) { if (cnt == GX_TX_RING_CNT) { printf("%s: overflow(2): %d, %d\n", cnt, GX_TX_RING_CNT, gx->gx_dev.dv_xname); @@ -1795,9 +1791,9 @@ context_done: } tx = (struct gx_tx_desc_data *)&gx->gx_rdata->gx_tx_ring[idx]; - tx->tx_addr = txmap->dm_segs[i++].ds_addr; + tx->tx_addr = txmap->dm_segs[i].ds_addr; tx->tx_status = 0; - tx->tx_len = m->m_len; + tx->tx_len = txmap->dm_segs[i].ds_len; #ifdef notyet if (gx->arpcom.ac_if.if_hwassist) { tx->tx_type = 1; |