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  1. 17 4月, 2008 13 次提交
  3. 26 1月, 2008 9 次提交
  5. 31 10月, 2007 1 次提交
  7. 10 10月, 2007 4 次提交
    • R
      IB/ipath: Fix IB_EVENT_PORT_ERR event · 49739b3e
      由 Ralph Campbell 提交于 
      The link state event calls were being generated when the SM told the SMA
to change link states. This works for IB_EVENT_PORT_ACTIVE but not if
the link goes down and stays down. The fix is to generate event calls
from the interrupt handler when the HW link state changes.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      49739b3e
    • M
      IB/ipath: Better handling of unexpected GPIO interrupts · 6a733cdc
      由 Michael Albaugh 提交于 
      The General Purpose I/O pins can be configured to cause interrupts. At
the end of the interrupt code dealing with all known causes, a message
is output if any bits remain un-handled. Since this is a "can't happen"
scenario, it should only be triggered by bugs elsewhere. It is harmless,
and potentially beneficial, to limit the damage by masking any such
unexpected interrupts.

This patch adds disabling of interrupts from any pins that should
not have been allowed to interrupt, in addition to emitting a message.
Signed-off-by: NMichael Albaugh <Michael.Albaugh@Qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      6a733cdc
    • A
      IB/ipath: Use counters in ipath_poll and cleanup interrupts in ipath_close · 70c51da2
      由 Arthur Jones 提交于 
      ipath_poll() suffered from a couple subtle bugs.  Under the right
conditions we could leave recv interrupts enabled on an ipath user
context on close, thereby taking potentially unwanted interrupts on the
next open -- this is fixed by unconditionally turning off recv
interrupts on close.  Also, we now use counters rather than set/clear
bits which allows us to make sure we catch all interrupts at the cost of
changing the semantics slightly (it's now give me all events since the
last time I called poll() rather than give me all events since I called
_this_ poll routine).  We also added some memory barriers which may help
ensure we get all notifications in a timely manner.
Signed-off-by: NArthur Jones <arthur.jones@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      70c51da2
    • A
      IB/ipath: iba6110 rev4 GPIO counters support · 327a338d
      由 Arthur Jones 提交于 
      On iba6110 rev4, support for three more IB counters were added.  The
LocalLinkIntegrityError counter, the ExcessiveBufferOverrunErrors
counter and support for error counting of flow control packets on an
invalid VL.  These counters trigger GPIO interrupts and the sw keeps
track of the counts.  Since we also use GPIO interrupts to signal packet
reception, we need to turn off the fast interrupts, or we risk losing a
GPIO interrupt.
Signed-off-by: NArthur Jones <arthur.jones@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      327a338d
  9. 31 7月, 2007 3 次提交
  11. 18 7月, 2007 1 次提交
    • R
      IB/ipath: Make a few functions static · da9aec7b
      由 Roland Dreier 提交于 
      Make some functions that are only used in a single .c file static.  In
addition to being a cleanup, this shrinks the generated code.  On x86_64:

add/remove: 1/3 grow/shrink: 2/1 up/down: 4777/-4956 (-179)
function                                     old     new   delta
handle_errors                                  -    3994   +3994
__verbs_timer                                 42     710    +668
ipath_do_ruc_send                           2131    2246    +115
ipath_no_bufs_available                      136       -    -136
ipath_disarm_senderrbufs                     639       -    -639
ipath_ib_timer                               658       -    -658
ipath_intr                                  5878    2355   -3523
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      da9aec7b
  13. 10 7月, 2007 6 次提交
  15. 15 5月, 2007 1 次提交
    • A
      IB/ipath: Shadow the gpio_mask register · 8f140b40
      由 Arthur Jones 提交于 
      Once upon a time, GPIO interrupts were rare.  But then a chip bug in
the waldo series forced the use of a GPIO interrupt to signal packet
reception.  This greatly increased the frequency of GPIO interrupts
which have the gpio_mask bits set on the waldo chips.  Other bits in
the gpio_status register are used for I2C clock and data lines, these
bits are usually on.  An "unlikely" annotation leftover from the old
days was improperly applied to these bits, and an unnecessary chip
mmio read was being accessed in the interrupt fast path on waldo.

Remove the stagnant unlikely annotation in the interrupt handler and
keep a shadow copy of the gpio_mask register to avoid the slow mmio
read when testing for interruptable GPIO bits.
Signed-off-by: NArthur Jones <arthur.jones@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      8f140b40
  17. 19 4月, 2007 2 次提交