Skip to content

L
linux
Switch branch/tag
  1. 20 Feb, 2023 9 commits
    • David Howells's avatar
      rxrpc: Fix overproduction of wakeups to recvmsg() · c0783818
      David Howells authored 
      Fix three cases of overproduction of wakeups:

 (1) rxrpc_input_split_jumbo() conditionally notifies the app that there's
     data for recvmsg() to collect if it queues some data - and then its
     only caller, rxrpc_input_data(), goes and wakes up recvmsg() anyway.

     Fix the rxrpc_input_data() to only do the wakeup in failure cases.

 (2) If a DATA packet is received for a call by the I/O thread whilst
     recvmsg() is busy draining the call's rx queue in the app thread, the
     call will left on the recvmsg() queue for recvmsg() to pick up, even
     though there isn't any data on it.

     This can cause an unexpected recvmsg() with a 0 return and no MSG_EOR
     set after the reply has been posted to a service call.

     Fix this by discarding pending calls from the recvmsg() queue that
     don't need servicing yet.

 (3) Not-yet-completed calls get requeued after having data read from them,
     even if they have no data to read.

     Fix this by only requeuing them if they have data waiting on them; if
     they don't, the I/O thread will requeue them when data arrives or they
     fail.
Signed-off-by: default avatarDavid Howells <dhowells@redhat.com>
cc: Marc Dionne <marc.dionne@auristor.com>
cc: linux-afs@lists.infradead.org
Link: https://lore.kernel.org/r/3386149.1676497685@warthog.procyon.org.ukSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      c0783818
    • Paolo Abeni's avatar
      Merge branch 'net-final-gsi-register-updates' · d269ac13
      Paolo Abeni authored 
      Alex Elder says:

====================
net: final GSI register updates

I believe this is the last set of changes required to allow IPA v5.0
to be supported.  There is a little cleanup work remaining, but that
can happen in the next Linux release cycle.  Otherwise we just need
config data and register definitions for IPA v5.0 (and DTS updates).
These are ready but won't be posted without further testing.

The first patch in this series fixes a minor bug in a patch just
posted, which I found too late.  The second eliminates the GSI
memory "adjustment"; this was done previously to avoid/delay the
need to implement a more general way to define GSI register offsets.
Note that this patch causes "checkpatch" warnings due to indentation
that aligns with an open parenthesis.

The third patch makes use of the newly-defined register offsets, to
eliminate the need for a function that hid a few details.  The next
modifies a different helper function to work properly for IPA v5.0+.
The fifth patch changes the way the event ring size is specified
based on how it's now done for IPA v5.0+.  And the last defines a
new register required for IPA v5.0+.
====================

Link: https://lore.kernel.org/r/20230215195352.755744-1-elder@linaro.orgSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      d269ac13
    • Alex Elder's avatar
      net: ipa: add HW_PARAM_4 GSI register · f651334e
      Alex Elder authored 
      Starting at IPA v5.0, the number of event rings per EE is defined
in a field in a new HW_PARAM_4 GSI register rather than HW_PARAM_2.
Define this new register and its fields, and update the code that
checks the number of rings supported by hardware to use the proper
field based on IPA version.
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      f651334e
    • Alex Elder's avatar
      net: ipa: support different event ring encoding · 37cd29ec
      Alex Elder authored 
      Starting with IPA v5.0, a channel's event ring index is encoded in
a field in the CH_C_CNTXT_1 GSI register rather than CH_C_CNTXT_0.
Define a new field ID for the former register and encode the event
ring in the appropriate register.
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      37cd29ec
    • Alex Elder's avatar
      net: ipa: avoid setting an undefined field · 62747512
      Alex Elder authored 
      The GSI channel protocol field in the CH_C_CNTXT_0 GSI register is
widened starting IPA v5.0, making the CHTYPE_PROTOCOL_MSB field
added in IPA v4.5 unnecessary.  Update the code to reflect this.
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      62747512
    • Alex Elder's avatar
      net: ipa: kill ev_ch_e_cntxt_1_length_encode() · f75f44dd
      Alex Elder authored 
      Now that we explicitly define each register field width there is no
need to have a special encoding function for the event ring length.
Add a field for this to the EV_CH_E_CNTXT_1 GSI register, and use it
in place of ev_ch_e_cntxt_1_length_encode() (which can be removed).
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      f75f44dd
    • Alex Elder's avatar
      net: ipa: kill gsi->virt_raw · 59b12b1d
      Alex Elder authored 
      Starting at IPA v4.5, almost all GSI registers had their offsets
changed by a fixed amount (shifted downward by 0xd000).  Rather than
defining offsets for all those registers dependent on version, an
adjustment was applied for most register accesses.  This was
implemented in commit cdeee49f ("net: ipa: adjust GSI register
addresses").  It was later modified to be a bit more obvious about
the adjusment, in commit 571b1e7e ("net: ipa: use a separate
pointer for adjusted GSI memory").

We now are able to define every GSI register with its own offset, so
there's no need to implement this special adjustment.

So get rid of the "virt_raw" pointer, and just maintain "virt" as
the (non-adjusted) base address of I/O mapped GSI register memory.

Redefine the offsets of all GSI registers (other than the INTER_EE
ones, which were not subject to the adjustment) for IPA v4.5+,
subtracting 0xd000 from their defined offsets instead.

Move the ERROR_LOG and ERROR_LOG_CLR definitions further down in the
register definition files so all registers are defined in order of
their offset.
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      59b12b1d
    • Alex Elder's avatar
      net: ipa: fix an incorrect assignment · ecfa80ce
      Alex Elder authored 
      I spotted an error in a patch posted this week, unfortunately just
after it got accepted.  The effect of the bug is that time-based
interrupt moderation is disabled.  This is not technically a bug,
but it is not what is intended.  The problem is that a |= assignment
got implemented as a simple assignment, so the previously assigned
value was ignored.

Fixes: edc6158b ("net: ipa: define fields for event-ring related registers")
Signed-off-by: default avatarAlex Elder <elder@linaro.org>
Signed-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      ecfa80ce
    • Lorenzo Bianconi's avatar
      net: dpaa2-eth: do not always set xsk support in xdp_features flag · 1c93e48c
      Lorenzo Bianconi authored 
      Do not always add NETDEV_XDP_ACT_XSK_ZEROCOPY bit in xdp_features flag
but check if the NIC really supports it.
Signed-off-by: default avatarLorenzo Bianconi <lorenzo@kernel.org>
Reviewed-by: default avatarLarysa Zaremba <larysa.zaremba@intel.com>
Link: https://lore.kernel.org/r/3dba6ea42dc343a9f2d7d1a6a6a6c173235e1ebf.1676471386.git.lorenzo@kernel.orgSigned-off-by: default avatarPaolo Abeni <pabeni@redhat.com>
      1c93e48c
  3. 17 Feb, 2023 2 commits
    • David S. Miller's avatar
      Merge ra.kernel.org:/pub/scm/linux/kernel/git/netdev/net · 675f176b
      David S. Miller authored 
      Some of the devlink bits were tricky, but I think I got it right.
Signed-off-by: default avatarDavid S. Miller <davem@davemloft.net>
      675f176b
    • Linus Torvalds's avatar
      Merge tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm · ec35307e
      Linus Torvalds authored 
      Pull drm fixes from Dave Airlie:
 "Just a final collection of misc fixes, the biggest disables the
  recently added dynamic debugging support, it has a regression that
  needs some bigger fixes.

  Otherwise a bunch of fixes across the board, vc4, amdgpu and vmwgfx
  mostly, with some smaller i915 and ast fixes.

  drm:
   - dynamic debug disable for now

  fbdev:
   - deferred i/o device close fix

  amdgpu:
   - Fix GC11.x suspend warning
   - Fix display warning

  vc4:
   - YUV planes fix
   - hdmi display fix
   - crtc reduced blanking fix

  ast:
   - fix start address computation

  vmwgfx:
   - fix bo/handle races

  i915:
   - gen11 WA fix"

* tag 'drm-fixes-2023-02-17' of git://anongit.freedesktop.org/drm/drm:
  drm/amd/display: Fail atomic_check early on normalize_zpos error
  drm/amd/amdgpu: fix warning during suspend
  drm/vmwgfx: Do not drop the reference to the handle too soon
  drm/vmwgfx: Stop accessing buffer objects which failed init
  drm/i915/gen11: Wa_1408615072/Wa_1407596294 should be on GT list
  drm: Disable dynamic debug as broken
  drm/ast: Fix start address computation
  fbdev: Fix invalid page access after closing deferred I/O devices
  drm/vc4: crtc: Increase setup cost in core clock calculation to handle extreme reduced blanking
  drm/vc4: hdmi: Always enable GCP with AVMUTE cleared
  drm/vc4: Fix YUV plane handling when planes are in different buffers
      ec35307e
  5. 16 Feb, 2023 29 commits
GitLab Nexedi Edition | About GitLab | About Nexedi | 沪ICP备2021021310号-2 | 沪ICP备2021021310号-7