Skip to content

K
Kernel

openeuler / Kernel
接近 2 年 前同步成功

通知 8
Star 0
Fork 0
K
Kernel
切换分支/标签
  1. 24 5月, 2006 2 次提交
  3. 19 5月, 2006 1 次提交
  5. 18 5月, 2006 4 次提交
  7. 17 5月, 2006 1 次提交
    • R
      IB/mthca: Make fw_cmd_doorbell default to 0 · 1db76c14
      由 Roland Dreier 提交于 
      Setting fw_cmd_doorbell allows FW command to be queued using posted
writes instead of requiring polling on a "go" bit, so it should be a
performance boost.  However, the option causes problems with at least
some device/firmware combinations, so set the default to 0 until we
understand what's going on better.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      1db76c14
  9. 13 5月, 2006 2 次提交
    • S
      IB: refcount race fixes · 1b52fa98
      由 Sean Hefty 提交于 
      Fix race condition during destruction calls to avoid possibility of
accessing object after it has been freed.  Instead of waking up a wait
queue directly, which is susceptible to a race where the object is
freed between the reference count going to 0 and the wake_up(), use a
completion to wait in the function doing the freeing.
Signed-off-by: NSean Hefty <sean.hefty@intel.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      1b52fa98
    • R
      IB/ipath: Properly terminate PCI ID table · 6f4bb3d8
      由 Roland Dreier 提交于 
      The ipath driver's table of PCI IDs needs a { 0, } entry at the end.
This makes all of the device aliases visible to userspace so hotplug
loads the module for all supported devices.  Without the patch,
modinfo ipath_core only shows:

    alias:          pci:v00001FC1d0000000Dsv*sd*bc*sc*i*

instead of the correct:

    alias:          pci:v00001FC1d00000010sv*sd*bc*sc*i*
    alias:          pci:v00001FC1d0000000Dsv*sd*bc*sc*i*
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
Signed-off-by: NBryan O'Sullivan <bos@pathscale.com>
      6f4bb3d8
  11. 11 5月, 2006 1 次提交
  13. 10 5月, 2006 4 次提交
    • R
      IPoIB: Free child interfaces properly · 5941d079
      由 Roland Dreier 提交于 
      When deleting a child interface with a non-default P_Key via
/sys/class/net/ibX/delete_child, the interface must be freed with
free_netdev() (rather than kfree() on the private data).
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      5941d079
    • R
      IB/mthca: Fix race in reference counting · a3285aa4
      由 Roland Dreier 提交于 
      Fix races in in destroying various objects.  If a destroy routine
waits for an object to become free by doing

	wait_event(&obj->wait, !atomic_read(&obj->refcount));
	/* now clean up and destroy the object */

and another place drops a reference to the object by doing

	if (atomic_dec_and_test(&obj->refcount))
		wake_up(&obj->wait);

then this is susceptible to a race where the wait_event() and final
freeing of the object occur between the atomic_dec_and_test() and the
wake_up().  And this is a use-after-free, since wake_up() will be
called on part of the already-freed object.

Fix this in mthca by replacing the atomic_t refcounts with plain old
integers protected by a spinlock.  This makes it possible to do the
decrement of the reference count and the wake_up() so that it appears
as a single atomic operation to the code waiting on the wait queue.

While touching this code, also simplify mthca_cq_clean(): the CQ being
cleaned cannot go away, because it still has a QP attached to it.  So
there's no reason to be paranoid and look up the CQ by number; it's
perfectly safe to use the pointer that the callers already have.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      a3285aa4
    • R
      IB/srp: Fix tracking of pending requests during error handling · d945e1df
      由 Roland Dreier 提交于 
      If a SCSI abort completes, or the command completes successfully, then
the driver must remove the command from its queue of pending
commands.  Similarly, if a device reset succeeds, then all commands
queued for the given device must be removed from the queue.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      d945e1df
    • R
      IB: Fix display of 4-bit port counters in sysfs · d8b9f23b
      由 Ralph Campbell 提交于 
      The code to display local_link_integrity_errors and
excessive_buffer_overrun_errors in
/sys/class/infiniband/<hca>/ports/<n>/counters/
uses the wrong shift to extract the 4 bit values.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      d8b9f23b
  15. 02 5月, 2006 12 次提交
  17. 20 4月, 2006 5 次提交
  19. 13 4月, 2006 1 次提交
    • J
      IB/mthca: Fix max_srq_sge returned by ib_query_device for Tavor devices · 59fef3b1
      由 Jack Morgenstein 提交于 
      The driver allocates SRQ WQEs size with a power of 2 size both for
Tavor and for memfree. For Tavor, however, the hardware only requires
the WQE size to be a multiple of 16, not a power of 2, and the max
number of scatter-gather allowed is reported accordingly by the
firmware (and this is the value currently returned by
ib_query_device() and ibv_query_device()).

If the max number of scatter/gather entries reported by the FW is used
when creating an SRQ, the creation will fail for Tavor, since the
required WQE size will be increased to the next power of 2, which
turns out to be larger than the device permitted max WQE size (which
is not a power of 2).

This patch reduces the reported SRQ max wqe size so that it can be used
successfully in creating an SRQ on Tavor HCAs.
Signed-off-by: NJack Morgenstein <jackm@mellanox.co.il>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      59fef3b1
  21. 11 4月, 2006 7 次提交