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22 Commits

Author SHA1 Message Date
Marcel Apfelbaum
72221d03b8 hw/pvrdma: remove not needed include 
No need to include linux/types.h, is empty anyway.

Suggested-by: Thomas Huth <thuth@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180811171534.11917-1-marcel.apfelbaum@gmail.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
 2018-08-18 18:01:27 +03:00
Yuval Shaia
430e440c59 hw/rdma: Add reference to pci_dev in backend_dev 
The field backend_dev->dev is not initialized, fix it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180805153518.2983-14-yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 18:01:20 +03:00
Yuval Shaia
7d2ce4b016 hw/rdma: Bugfix - Support non-aligned buffers 
RDMA application can provide non-aligned buffers to be registered. In
such case the DMA address passed by driver is pointing to the beginning
of the physical address of the mapped page so we can't distinguish
between two addresses from the same page.

Fix it by keeping the offset of the virtual address in mr->virt.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-13-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 18:00:55 +03:00
Yuval Shaia
abc665aae3 hw/rdma: Print backend QP number in hex format 
To be consistent with other prints throughout the code fix places that
print it as decimal number.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-12-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 18:00:48 +03:00
Yuval Shaia
67b32fe250 hw/pvrdma: Cosmetic change - indent right 
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-10-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 18:00:30 +03:00
Yuval Shaia
6e7dba23af hw/pvrdma: Make default pkey 0xFFFF 
0x7FFF is not the default pkey - fix it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-6-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 17:59:58 +03:00
Yuval Shaia
eca0f2a6be hw/pvrdma: Clean CQE before use 
Next CQE is fetched from CQ ring, clean it before usage as it still
carries old CQE values.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-5-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 17:59:50 +03:00
Yuval Shaia
ef846e026c hw/rdma: Modify debug macros 
- Add line counter to ease navigation in log
- Print rdma instead of pvrdma

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-4-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 17:59:42 +03:00
Yuval Shaia
b462a13480 hw/pvrdma: Bugfix - provide the correct attr_mask to query_qp 
Calling rdma_rm_query_qp with attr_mask equals to -1 leads to error
where backend query_qp fails to retrieve the needed QP attributes.
Fix it by providing the attr_mask we got from driver.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180805153518.2983-3-yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 17:59:33 +03:00
Yuval Shaia
751522275a hw/rdma: Make distinction between device init and start modes 
There are certain operations that are well considered as part of device
configuration while others are needed only when "start" command is
triggered by the guest driver. An example of device initialization step
is msix_init and example of "device start" stage is the creation of a CQ
completion handler thread.

Driver expects such distinction - implement it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180805153518.2983-2-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
 2018-08-18 17:59:23 +03:00
Philippe Mathieu-Daudé
78109066e6 hw/rdma: Use the IEC binary prefix definitions 
It eases code review, unit is explicit.

Patch generated using:

  $ git grep -E '(1024|2048|4096|8192|(<<|>>).?(10|20|30))' hw/ include/hw/

and modified manually.

Signed-off-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180625124238.25339-40-f4bug@amsat.org>
Signed-off-by: Paolo Bonzini <pbonzini@redhat.com>
 2018-07-02 15:41:17 +02:00
Yuval Shaia
350929172b hw/rdma: Fix possible out of bounds access to regs array 
Coverity (CID1390589, CID1390608).
Array size is RDMA_BAR1_REGS_SIZE, let's make sure the given address is
in range.

While there also:
1. Adjust the size of this bar to reasonable size
2. Report the size of the array with sizeof(array)

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180430200223.4119-6-marcel.apfelbaum@gmail.com>
 2018-05-03 20:52:29 +03:00
Yuval Shaia
c387e8a4ec hw/rdma: Fix possible out of bounds access to GID table 
Array size is MAX_PORT_GIDS, let's make sure the given index is in
range.

While there limit device table size to 1.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180430200223.4119-5-marcel.apfelbaum@gmail.com>
 2018-05-03 20:52:29 +03:00
Yuval Shaia
b9e34872b9 hw/rdma: Delete port's pkey table 
Support for PKEY is not yet implemented. Removing the unneeded table
until a support will be added.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Message-Id: <20180430200223.4119-4-marcel.apfelbaum@gmail.com>
 2018-05-03 20:52:29 +03:00
Marcel Apfelbaum
b0197cf80a hw/rdma: Fix possible usage of a NULL pointer 
Coverity CID 1390586; The cq handle is provided by the guest
and cannot be trusted to be previuosly allocated.
Fix it by exiting the completion flow.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180430200223.4119-3-marcel.apfelbaum@gmail.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
 2018-05-03 20:52:29 +03:00
Marcel Apfelbaum
1bad4957c8 hw/rdma: Fix possible munmap call on a NULL pointer 
Coverity CID 1390620: we call munmap() on a NULL pointer.

Reported-by: Peter Maydell <peter.maydell@linaro.org>
Signed-off-by: Marcel Apfelbaum <marcel.apfelbaum@gmail.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
Message-Id: <20180430200223.4119-2-marcel.apfelbaum@gmail.com>
 2018-05-03 20:52:29 +03:00
Yuval Shaia
6f559013c8 hw/rdma: Fix 32-bit compilation 
Use the correct printf formats, so that a 32-bit compile doesn't spit
out lots of warnings about %lx being incompatible with uint64_t.

Suggested-by: Eric Blake <eblake@redhat.com>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Eric Blake <eblake@redhat.com>
Tested-by: Eric Blake <eblake@redhat.com>
Reviewed-by: Philippe Mathieu-Daudé <f4bug@amsat.org>
Message-Id: <20180322095220.9976-4-yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
 2018-03-23 18:38:55 +03:00
Marcel Apfelbaum
197053e212 hw/rdma: fix clang compilation errors 
Fix some enum castings and extra parentheses.

Reported-by: Michael S. Tsirkin <mst@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
Message-Id: <20180321140316.96045-1-marcel@redhat.com>
Reviewed-by: Yuval Shaia <yuval.shaia@oracle.com>
 2018-03-23 18:38:55 +03:00
Michael S. Tsirkin
0efc9511aa rdma: fix up include directives 
Our rule right now is to use <> for external headers only.
RDMA code violates that, fix it up.

Signed-off-by: Michael S. Tsirkin <mst@redhat.com>
Reviewed-by: Daniel P. Berrangé <berrange@redhat.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
 2018-03-23 18:38:55 +03:00
Yuval Shaia
79cfdca7aa hw/rdma: Add support for Query QP verb to pvrdma device 
This IB verb is needed by some applications - implement it.

Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Reviewed-by: Marcel Apfelbaum <marcel@redhat.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
 2018-03-23 18:38:55 +03:00
Yuval Shaia
919ae3dd11 hw/rdma: Implementation of PVRDMA device 
PVRDMA is the QEMU implementation of VMware's paravirtualized RDMA device.
It works with its Linux Kernel driver AS IS, no need for any special
guest modifications.

While it complies with the VMware device, it can also communicate with
bare metal RDMA-enabled machines and does not require an RDMA HCA in the
host, it can work with Soft-RoCE (rxe).

It does not require the whole guest RAM to be pinned allowing memory
over-commit and, even if not implemented yet, migration support will be
possible with some HW assistance.

Implementation is divided into 2 components, rdma general and pvRDMA
specific functions and structures.

The second PVRDMA sub-module - interaction with PCI layer.
- Device configuration and setup (MSIX, BARs etc).
- Setup of DSR (Device Shared Resources)
- Setup of device ring.
- Device management.

Reviewed-by: Dotan Barak <dotanb@mellanox.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
 2018-02-19 13:03:24 +02:00
Yuval Shaia
98d176f8e5 hw/rdma: PVRDMA commands and data-path ops 
First PVRDMA sub-module - implementation of the PVRDMA device.
- PVRDMA commands such as create CQ and create MR.
- Data path QP operations - post_send and post_recv.
- Completion handler.

Reviewed-by: Dotan Barak <dotanb@mellanox.com>
Reviewed-by: Zhu Yanjun <yanjun.zhu@oracle.com>
Signed-off-by: Yuval Shaia <yuval.shaia@oracle.com>
Signed-off-by: Marcel Apfelbaum <marcel@redhat.com>
 2018-02-19 13:03:24 +02:00