Dynamically configure the width of the srom. This code comes from

OpenBSD who got the code (or the idea) from the NetBSD tlp driver.

This gets some cardbus dc cards working (either completely or nearly
so).  It also appears to get additional pci cards working, without
breaking working ones.

# Maybe some additional work is needed here.  Also, the cardbus attachment
# might need to match on the CIS rather than on the vendor/device so we have
# a finer level of detail as to what the card is.  Technically, the
# vendor/device fields are undefined for CardBus (even though most cards are
# using common silicon with pci models).

1 files changed, 2 insertions, 1 deletions

diff --git a/sys/pci/if_dcreg.h b/sys/pci/if_dcreg.h
index 3be7658..432d9be 100644
--- a/sys/pci/if_dcreg.h
+++ b/sys/pci/if_dcreg.h
@@ -710,13 +710,14 @@ struct dc_softc {
 	u_int8_t		dc_pmode;
 	u_int8_t		dc_link;
 	u_int8_t		dc_cachesize;
+	int			dc_romwidth;
 	int			dc_pnic_rx_bug_save;
 	unsigned char		*dc_pnic_rx_buf;
 	int			dc_if_flags;
 	int			dc_if_media;
 	u_int32_t		dc_flags;
 	u_int32_t		dc_txthresh;
-	u_int8_t		dc_srom[1024];
+	u_int8_t		*dc_srom;
 	struct dc_mediainfo	*dc_mi;
 	struct dc_list_data	*dc_ldata;
 	struct dc_chain_data	dc_cdata;