ether82563: work arround bad eeprom checksum for some i218 card (thanks BurnZeZ)

on some machines, the eeprom checksum reads out as 0x3ABA
because of some bios issue. adding a flag for ignoring the
checksum and on i218 controllers.

diff --git a/sys/src/9/pc/ether82563.c b/sys/src/9/pc/ether82563.c
index 7fab51634dd0ce56493922e2c82839c7cad2ac78..9e9db66ba8d147e9bfe9c4eb99f17f48048324e0 100644 (file)
--- a/sys/src/9/pc/ether82563.c
+++ b/sys/src/9/pc/ether82563.c
@@ -456,36 +456,36 @@ enum {
        Fflashea= 1<<4,
        F79phy  = 1<<5,
        Fnofct  = 1<<6,
+       Fbadcsum= 1<<7,
 };
 
 typedef struct Ctlrtype Ctlrtype;
 struct Ctlrtype {
-       int     type;
+       char    *name;
        int     mtu;
        int     flag;
-       char    *name;
 };
 
 static Ctlrtype cttab[Nctlrtype] = {
-       i82563,         9014,   Fpba,           "i82563",
-       i82566,         1514,   Fload,          "i82566",
-       i82567,         9234,   Fload,          "i82567",
-       i82567m,        1514,   Fload,          "i82567m",
-       i82571,         9234,   Fpba,           "i82571",
-       i82572,         9234,   Fpba,           "i82572",
-       i82573,         8192,   Fert,           "i82573",               /* terrible perf above 8k */
-       i82574,         9018,   0,              "i82574",
-       i82575,         9728,   F75|Fflashea,   "i82575",
-       i82576,         9728,   F75,            "i82576",
-       i82577,         4096,   Fload|Fert,     "i82577",
-       i82577m,        1514,   Fload|Fert,     "i82577",
-       i82578,         4096,   Fload|Fert,     "i82578",
-       i82578m,        1514,   Fload|Fert,     "i82578",
-       i82579,         9018,   Fload|Fert|F79phy|Fnofct,       "i82579",
-       i82580,         9728,   F75|F79phy,     "i82580",
-       i82583,         1514,   0,              "i82583",
-       i218,           9728,   F79phy|Fnofct|Fload|Fert,       "i218",
-       i350,           9728,   F75|F79phy|Fnofct,      "i350",
+[i82563]       "i82563",       9014,   Fpba,
+[i82566]       "i82566",       1514,   Fload,
+[i82567]       "i82567",       9234,   Fload,
+[i82567m]      "i82567m",      1514,   Fload,
+[i82571]       "i82571",       9234,   Fpba,
+[i82572]       "i82572",       9234,   Fpba,
+[i82573]       "i82573",       8192,   Fert,           /* terrible perf above 8k */
+[i82574]       "i82574",       9018,   0,
+[i82575]       "i82575",       9728,   F75|Fflashea,
+[i82576]       "i82576",       9728,   F75,
+[i82577]       "i82577",       4096,   Fload|Fert,
+[i82577m]      "i82577",       1514,   Fload|Fert,
+[i82578]       "i82578",       4096,   Fload|Fert,
+[i82578m]      "i82578",       1514,   Fload|Fert,
+[i82579]       "i82579",       9018,   Fload|Fert|F79phy|Fnofct,
+[i82580]       "i82580",       9728,   F75|F79phy,
+[i82583]       "i82583",       1514,   0,
+[i218]         "i218",         9728,   Fload|Fert|F79phy|Fnofct|Fbadcsum,
+[i350]         "i350",         9728,   F75|F79phy|Fnofct,
 };
 
 typedef void (*Freefn)(Block*);
@@ -1655,9 +1655,13 @@ i82563reset(Ctlr *ctlr)
        else
                r = eeload(ctlr);
        if(r != 0 && r != 0xbaba){
-               print("%s: bad eeprom checksum - %#.4ux\n",
-                       cname(ctlr), r);
-               return -1;
+               print("%s: bad eeprom checksum - %#.4ux", cname(ctlr), r);
+               if(cttab[ctlr->type].flag & Fbadcsum)
+                       print("; ignored\n");
+               else {
+                       print("\n");
+                       return -1;
+               }
        }
 
        ra = ctlr->ra;