hi folks, i'm working on fec driver modification. I'm implementing the set_multicast_list. dev->dmi_addr is saved on LSB format. I want to do a multicast filter. I'm doing it by sw.
Now i'm using crc32 from /linux/crc.h, witch use a table. I convert LSB dmi_addr to MSB. Then apply crc32. Result obtained is for UART tx purpose(LSB), pass result to MSB again. Then mask with 0x7C000000 to obtain bit on hash_table_register. mask with 0x80000000 to select what register. on mine board, diferent to anyone you can know, multicast filter is done. but not correctly. I can't access to any SCC(all used, modes diferent from ETHERNET). I can't access to boards with scc enet. when i call to crc32 val take 0xFFFFFFFF value, like scc dpram says(c_pres, section 28.8 MPC860 PowerQuicc User's Manual), and mask is not used(c_mask). Can anyone give mi hex value of hash_table_high and hash_table_low using CPM_SET_GROUP? i.e, for address 224.0.0.123. better for three or four direcctions, then maybe can obtain algorithm used by cpm and sw CPM_SET_GROUP can be do. thanks all ---------------------------------------------------------------------------- ---------------------------------------- "No nos atrevemos a muchas cosas porque son dif?ciles, pero son dif?ciles porque no nos atrevemos a hacerlas" Lucio Anneo S?neca , 2 AC-65 Jose Manuel Martin Bravo jmartin at prodys.net termita at ya.com Madrid,Spain ---------------------------------------------------------------------------- ---------------------------------------- ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
