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. 14 5月, 2008 3 次提交
  3. 08 5月, 2008 1 次提交
  5. 17 4月, 2008 3 次提交
    • R
      IB/core: Add support for "send with invalidate" work requests · 0f39cf3d
      由 Roland Dreier 提交于 
      Add a new IB_WR_SEND_WITH_INV send opcode that can be used to mark a
"send with invalidate" work request as defined in the iWARP verbs and
the InfiniBand base memory management extensions.  Also put "imm_data"
and a new "invalidate_rkey" member in a new "ex" union in struct
ib_send_wr. The invalidate_rkey member can be used to pass in an
R_Key/STag to be invalidated.  Add this new union to struct
ib_uverbs_send_wr.  Add code to copy the invalidate_rkey field in
ib_uverbs_post_send().

Fix up low-level drivers to deal with the change to struct ib_send_wr,
and just remove the imm_data initialization from net/sunrpc/xprtrdma/,
since that code never does any send with immediate operations.

Also, move the existing IB_DEVICE_SEND_W_INV flag to a new bit, since
the iWARP drivers currently in the tree set the bit.  The amso1100
driver at least will silently fail to honor the IB_SEND_INVALIDATE bit
if passed in as part of userspace send requests (since it does not
implement kernel bypass work request queueing).  Remove the flag from
all existing drivers that set it until we know which ones are OK.

The values chosen for the new flag is not consecutive to avoid clashing
with flags defined in the XRC patches, which are not merged yet but
which are already in use and are likely to be merged soon.

This resurrects a patch sent long ago by Mikkel Hagen <mhagen@iol.unh.edu>.
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      0f39cf3d
    • R
      IB/ipath: Update copyright dates for files changed in 2008 · e7eacd36
      由 Ralph Campbell 提交于 
      Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      e7eacd36
    • R
      IB/ipath: Use PIO buffer for RC ACKs · d98b1937
      由 Ralph Campbell 提交于 
      This reduces the latency for RC ACKs when a PIO buffer is available.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      d98b1937
  7. 12 3月, 2008 1 次提交
  9. 26 1月, 2008 1 次提交
    • R
      IB/ipath: Fix RNR NAK handling · cc65edcf
      由 Ralph Campbell 提交于 
      This patch fixes a couple of minor problems with RNR NAK handling:
 - The insertion sort was causing extra delay when inserting ahead
   vs. behind an existing entry on the list.
 - A resend of a first packet of a message which is still not ready,
   needs another RNR NAK (i.e., it was suppressed when it shouldn't).
 - Also, the resend tasklet doesn't need to be woken up unless the
   ACK/NAK actually indicates progress has been made.
Signed-off-by: NRalph Campbell <ralph.campbell@qlogic.com>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      cc65edcf
  11. 14 11月, 2007 1 次提交
  13. 10 10月, 2007 2 次提交
  15. 10 7月, 2007 5 次提交
  17. 07 5月, 2007 2 次提交
  19. 01 5月, 2007 2 次提交
  21. 19 4月, 2007 4 次提交
  23. 05 2月, 2007 1 次提交
    • M
      IB: Return qp pointer as part of ib_wc · 062dbb69
      由 Michael S. Tsirkin 提交于 
      struct ib_wc currently only includes the local QP number: this matches
the IB spec, but seems mostly useless. The following patch replaces
this with the pointer to qp itself, and updates all low level drivers
and all users.

This has the following advantages:
- Ability to get a per-qp context through wc->qp->qp_context
- Existing drivers already have the qp pointer ready in poll cq, so
  this change actually saves a tiny bit (extra memory read) on data path
  (for ehca it would actually be expensive to find the QP pointer when
  polling a CQ, but ehca does not support SRQ so we can leave wc->qp as
  NULL for ehca)
- Users that need the QP number can still get it through wc->qp->qp_num

Use case:

In IPoIB connected mode code, I have a common CQ shared by multiple
QPs.  To track connection usage, I need a way to get at some per-QP
context upon the completion, and I would like to avoid allocating
context object per work request just to stick a QP pointer into it.
With this code, I can just use wc->qp->qp_context.
Signed-off-by: NMichael S. Tsirkin <mst@mellanox.co.il>
Signed-off-by: NRoland Dreier <rolandd@cisco.com>
      062dbb69
  25. 03 10月, 2006 1 次提交
  27. 29 9月, 2006 4 次提交
  29. 23 9月, 2006 1 次提交
  31. 02 7月, 2006 6 次提交
  33. 24 5月, 2006 1 次提交
  35. 01 4月, 2006 1 次提交