mbox

[v2,0/3] Increase test compatibility with PA IOVA

Message ID 20210604141601.275430-1-kda@semihalf.com (mailing list archive)
Headers

Message

Stanislaw Kardach June 4, 2021, 2:15 p.m. UTC 
  While working on a RISC-V port, using a HiFive Unmatched (FU740) which
does not have IOMMU (hence only RTE_IOVA_PA is available), I've noticed
that some of the EAL tests are failing because of a totally different
reason than the test itself.
Namely the --no-huge flag and --iova-mode=pa can't be used together and
EAL init fails warning about a lack of access to physical addresses.
This patchset tries to cleanup the --no-huge usage so that it doesn't
hide the real state of tests when RTE_IOVA_PA is used (i.e. on platforms
without IOMMU).

I'm proposing to skip the no-huge test for RTE_IOVA_PA environments as
it is not supported by design as well as removing no-huge usage on Linux
as it seems that it is used (along with --no-shconf) to increase the
compatibility with FreeBSD.

Please let me know if I'm missing a bigger picture with the --no-huge
and --no-shconf usage on non-FreeBSD platforms.

I'm not adding stable@dpdk.org on purpose as this does not affect any
current platform I'm aware of (at least in a production scenario).

---

V2:
- Fix checkpatch errors
- Add affected platform in the cover letter.

Stanislaw Kardach (3):
  test: disable no-huge test with PA IOVA
  test: disable no-huge where it's not necessary
  test: fix the -n unit test description

 app/test/test_eal_flags.c | 63 ++++++++++++++++++++++++++-------------
 1 file changed, 42 insertions(+), 21 deletions(-)