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  1. 06 11月, 2007 5 次提交
  3. 02 11月, 2007 4 次提交
    • A
      cleanup asm/scatterlist.h includes · 87ae9afd
      由 Adrian Bunk 提交于 
      Not architecture specific code should not #include <asm/scatterlist.h>.

This patch therefore either replaces them with
#include <linux/scatterlist.h> or simply removes them if they were
unused.
Signed-off-by: NAdrian Bunk <bunk@kernel.org>
Signed-off-by: NJens Axboe <jens.axboe@oracle.com>
      87ae9afd
    • A
      Fix myri10ge NAPI oops & warnings · c956a240
      由 Andrew Gallatin 提交于 
      When testing the myri10ge driver with 2.6.24-rc1, I found
that the machine crashed under heavy load:

Unable to handle kernel paging request at 0000000000100108 RIP:
  [<ffffffff803cc8dd>] net_rx_action+0x11b/0x184

The address corresponds to the list_move_tail() in
netif_rx_complete():
                     if (unlikely(work == weight))
                             list_move_tail(&n->poll_list, list);

Eventually, I traced the crashes to calling netif_rx_complete() with
work_done == budget.  From looking at other drivers, it appears that
one should only call netif_rx_complete() when work_done < budget.

To fix it, I changed the test in myri10ge_poll() so that it refers
to to work_done rather than looking at the rx ring status.  If
work_done is < budget, then that implies we have no more packets to
process. Any races will be resolved by the NIC when the write to
irq_claim is made.

In myri10ge_clean_rx_done(), if we ever exceeded our budget, it would
report a work_done one larger than was acutally done.  This is because
the increment was done in the conditional, so work_done would be
incremented regardless of whether or not the test passed or failed.
This would lead to the WARN_ON_ONCE(work > weight); warning in
net_rx_action triggering.  I've moved the increment of work_done
inside the loop.  Note that this would only be a problem when we had
exceeded our budget.

Signed off by: Andrew Gallatin <gallatin@myri.com>

Andrew Gallatin Myricom Inc
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      c956a240
    • G
      Fix region size check in mpc5200 FEC driver · 48d58459
      由 Grant Likely 提交于 
      Driver shouldn't complain if the register range is larger than what
it expects.  This works around failures with some device trees.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      48d58459
    • G
      mpc5200: Fix Kconfig dependancies on MPC5200 FEC device driver · 644fdf9b
      由 Grant Likely 提交于 
      When not building an arch/powerpc kernel, the mpc5200 FEC driver depends
on some symbols which are not defined (BESTCOMM & BESTCOMM_FEC).

This patch flips around the dependancy logic so that it cannot be
selected unless BESTCOMM_FEC is selected first.  Kconfig stops
complaining this way.

Also, the driver only works for arch/powerpc (not arch/ppc) anyway so
it should depend on PPC_MERGE also.
Signed-off-by: NGrant Likely <grant.likely@secretlab.ca>
Signed-off-by: NJeff Garzik <jeff@garzik.org>
      644fdf9b
  5. 01 11月, 2007 1 次提交
  7. 31 10月, 2007 10 次提交
  9. 30 10月, 2007 1 次提交
  11. 29 10月, 2007 13 次提交
  13. 27 10月, 2007 2 次提交
  15. 26 10月, 2007 4 次提交