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Read the packet header count in bytes, not as a word--word reads return

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invalid data on some cards (notably old Apple Ethernet NB and Farallon
cards at least).
This commit is contained in:
briggs 1995-07-30 02:44:27 +00:00
parent 60d2d483ca
commit cf0aca3cb4
1 changed files with 4 additions and 5 deletions
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9
sys/arch/mac68k/dev/if_ae.c
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@ -1,4 +1,4 @@
/* $NetBSD: if_ae.c,v 1.31 1995/06/28 04:31:06 cgd Exp $ */
/* $NetBSD: if_ae.c,v 1.32 1995/07/30 02:44:27 briggs Exp $ */
/*
* Device driver for National Semiconductor DS8390/WD83C690 based ethernet
@ -733,7 +733,7 @@ ae_rint(sc)
u_short len;
u_char nlen;
struct ae_ring packet_hdr;
caddr_t packet_ptr;
caddr_t packet_ptr, lenp;
loop:
/* Set NIC to page 1 registers to get 'current' pointer. */
@ -764,9 +764,8 @@ loop:
* the NIC.
*/
packet_hdr = *(struct ae_ring *) packet_ptr;
packet_hdr.count =
((packet_hdr.count >> 8) & 0xff) |
((packet_hdr.count & 0xff) << 8);
lenp = (caddr_t) &((struct ae_ring *) packet_ptr)->count;
packet_hdr.count = lenp[0] | ((u_short)lenp[1] << 8);
len = packet_hdr.count;
/*