Dieu Morales wrote: >Greetings, I am working with the latest 2.6.7 kernel >source on a ppc radstone PPC7A board and was curious >if anyone was in the process or planned on porting the >gt64260_eth driver to support the 2.6.x kernel. > >Not being familiar with the gt64260 Ethernet device or >code, I plan to take it line by line. I have attempted >to use the driver from the ppc.bkbits.net 2.4 >development tree and currently have only changed the >dev = init_etherdev(dev, sizeof (gt_eth_priv)); >to >dev = alloc_etherdev(sizeof (gt_eth_priv_struct )); >Shortly after, when attempting to allocate the Tx and >Rx page buffers, I get an exception in the >uncachedPages function. I have traced the problem to >the pmd_present?(*pmd) function in va_to_pte(addr) >returning 0. I dumped the values of pmd, init_mm, and >pmd in the va_to_pte() and the values seemed O.K., so >I commented out the pmd_present?(*pmd) check but was >once again stopped by the pte_present(*pte) check. I >have seen the driver operate under 2.4.26 dev tree >from ppc.bkbits.net where this problem does not occur. >One difference I have noticed is that during >initialization of the 2.6.7 kernel, I do not get the >following output. >Buffer-cache hash table entries: >Page-cache hash table entries: >The filemap.c, where the "Page-cache " printk resides >in 2.4, looks heavily reworked, so I don't suspect >this is an issue? > > Dieu,
You should sync up with Brian Waite (look at CC: list) who has been looking at writing a new enet driver for the 2.6 kernel using the latest bridge support code. You can get a look at the latest support code by cloning bk://source.mvista.com/linux-2.5-marvell. Note the the mpsc driver that's there still isn't working correctly. Mark ** Sent via the linuxppc-embedded mail list. See http://lists.linuxppc.org/
