The DL100xx cards have 24k of packet memory, not 16k. Use it for them

and update comments about original patches doing this and it not
working.  It works for both the DL10019 and DL10022 based cards that I
have.  It really helps the DL10019 cards, since they were using 8k
instead of the normal 16k that regular NE-2000 cards help.

# Note to self: need to provide a common routine to setup memory
# parameters.

1 files changed, 20 insertions, 5 deletions

diff --git a/sys/dev/ed/if_ed_pccard.c b/sys/dev/ed/if_ed_pccard.c
index 350876a..53034cd 100644
--- a/sys/dev/ed/if_ed_pccard.c
+++ b/sys/dev/ed/if_ed_pccard.c
@@ -622,10 +622,6 @@ bad:
 /*
  * Probe the Ethernet MAC addrees for PCMCIA Linksys EtherFast 10/100 
  * and compatible cards (DL10019C Ethernet controller).
- *
- * Note: The PAO patches try to use more memory for the card, but that
- * seems to fail for my card.  A future optimization would add this back
- * conditionally.
  */
 static int
 ed_pccard_dl100xx(device_t dev, const struct ed_product *pp)
@@ -633,6 +629,7 @@ ed_pccard_dl100xx(device_t dev, const struct ed_product *pp)
 	struct ed_softc *sc = device_get_softc(dev);
 	u_char sum;
 	uint8_t id;
+	u_int   memsize;
 	int i, error;
 
 	if (!(pp->flags & NE2000DVF_DL100XX))
@@ -666,8 +663,26 @@ ed_pccard_dl100xx(device_t dev, const struct ed_product *pp)
 	ed_nic_outb(sc, ED_P0_DCR, ED_DCR_WTS | ED_DCR_FT1 | ED_DCR_LS);
 	id = ed_asic_inb(sc, 0xf);
 	sc->isa16bit = 1;
-	sc->vendor = ED_VENDOR_NOVELL;
+	/*
+	 * Hard code values based on the datasheet.  We're NE-2000 compatible
+	 * NIC with 24kb of packet memory starting at 24k offset.  These
+	 * cards also work with 16k at 16k, but don't work with 24k at 16k
+	 * or 32k at 16k.
+	 */
 	sc->type = ED_TYPE_NE2000;
+	sc->mem_start = 24 * 1024;
+	memsize = sc->mem_size = 24 * 1024;
+	sc->mem_end = sc->mem_start + memsize;
+	sc->tx_page_start = memsize / ED_PAGE_SIZE;
+	sc->txb_cnt = 3;
+	sc->rec_page_start = sc->tx_page_start + sc->txb_cnt * ED_TXBUF_SIZE;
+	sc->rec_page_stop = sc->tx_page_start + memsize / ED_PAGE_SIZE;
+
+	sc->mem_ring = sc->mem_start + sc->txb_cnt * ED_PAGE_SIZE * ED_TXBUF_SIZE;
+
+	ed_nic_outb(sc, ED_P0_PSTART, sc->mem_start / ED_PAGE_SIZE);
+	ed_nic_outb(sc, ED_P0_PSTOP, sc->mem_end / ED_PAGE_SIZE);
+	sc->vendor = ED_VENDOR_NOVELL;
 	sc->chip_type = (id & 0x90) == 0x90 ?
 	    ED_CHIP_TYPE_DL10022 : ED_CHIP_TYPE_DL10019;
 	sc->type_str = ((id & 0x90) == 0x90) ? "DL10022" : "DL10019";